Device for processing food products with magnetic drive

FIELD: physics.

SUBSTANCE: device for treating food products consists of a driving shaft, a tank for food products, drive plate and an electric motor. The container consists of an element, made with provision for rotation and is linked to the driving shaft. The drive plate is made from magnetisable material and is linked to the driving shaft, providing for their combined rotation. The electric motor has a rotor, starter and a propulsion magnet. The rotor has a rotor magnet, which has an inner surface facing the motor shaft. The starter generates a magnetic field, which interacts with the rotor magnet. The starter has an outer surface, facing the opposite side of the motor shaft. Part of the inner surface of the rotor magnet faces the outer surface of the starter. The propulsion magnet is linked to the rotor magnet to provide for their combined rotation. The device has a bushing, made from plastic and mounted with possibility of rotating on the shaft of the electric motor. The propulsion magnet and the rotor magnet are joined by a bushing and are at its opposite sides.

EFFECT: reliable power transmission.

28 cl, 15 dwg

 

The technical field to which the invention relates.

The present invention relates to a magnetic actuator for transmitting rotational motion from the source of driving force in a closed space with no direct mechanical connection. More specifically it relates to mixers, mixers, and similar devices and, in particular, to devices having a stirrer, impeller, knife or other tool mounted in a removable Cup or container and rotated by an electric motor located inside the stationary base of the machine.

The level of technology

Ordinary household faucets and mixers contain the impeller with mechanical drive, mounted with capability of rotation inside removable Cup mixer. The base of the Cup contains, as a rule, all connecting plate with protrusions and / or grooves made in a certain order on its bottom surface and enabling detachable connection when moving in the vertical direction with the corresponding elements of the return plate, mounted on the shaft of the electric motor, located at the base of the machine. This mechanical connection between the bowl of the mixer and the motor of the mixer requires a seal of a hinge joint at the base of the Cup located between krylack the th and the connection plate. This seal is subject to considerable wear and tear over time, because it is a mechanical connection. Because of the possibility of leakage of fluid from the Cup when the seal system is necessary to ensure a reliable seal to increase the friction in the seal. Increased friction leads to accelerated wear, heat and power losses. In addition, conventional mixers produce a lot of unwanted noise, and mechanical vzaimoponimae connection between the plates can cause inconvenience in use or cause difficulties when performing operations removing the Cup from the base and install it back into place.

Many mixers for making beverages have a drive motor mounted in the base directly below the Cup. However, in an effort to reduce overall height of the motor can be positioned offset to the side and connect to the drive shaft via a belt or gear transmission.

In the well-known domestic and public catering mixers used ordinary AC motors. Although AC motors and can be designed in such a manner that the speed of their rotation, however, the motor of this type usually is too thunder sdkin, heavy and insufficiently adapted to regulate the speed with the help of electronic devices, not to mention braking it with the help of such devices.

Although there are also brushless DC motors, but they nevertheless did not find application in the design of faucets and mixers-Stroiteley. In the construction of motors of this type is used relatively heavy rotor formed by the permanent magnets spaced sectors. Mixing mass sliced or cooked cubes of ice and liquid, especially at the beginning or at the "frosting" frozen drinks requires a relatively high torque. Brushless DC motors are characterized by low torque on the shaft compared to conventional AC motors. Therefore, they have found application as a source of driving force mainly in devices such as fans, which is quite acceptable low torque on the shaft.

Commercially viable mixer-Stroitel for the preparation of cold drinks must meet a variety of special and important design criteria. It must be compact as it occupied the area, and overall in the cell with the to make effective use of limited space at the bar. Ideally, it has a relatively low weight. The direct approach, which consists in placing a conventional electric motor directly under the bowl of the mixer, leads to an increase in overall height of the machine and therefore, as a rule, does not apply. Must also be provided to adjust the speed provided in typical cases with gear and electronics that is essential to satisfy different requirements of power and speed at different stages of work. It is also important to ensure rapid controlled braking to limit the total time required for mixing, to avoid splashing cooked mixture and for security purposes. Limit vibration, preventing overheating or reducing wear to a minimum, ease of maintenance and durability are also important.

It is also known that the impeller inside the Cup of the mixer can be operated by a magnetic or electromagnetic, and not mechanically. One type of magnetic actuator provides connectivity rotating permanent magnet on the outside of the Cup mixer or other similar element, with the other permanent magnet mounted with a possibility of rotation inside the Cup of the mixer. Examples of this approach can be found patente U.S. No. 2459224 (Hendricks), in U.S. patent No. 2655011 (Ihle et al.) and in U.S. patent No. 5478149 (Quigg). In the patent Hendrix (Hendricks) revealed stirrer driven magnetic way and intended for mixing liquids, while the mixer has a magnet mounted on its lower end and inside of the container for the liquid. In the patent Quagga (Quigg) revealed the electric motor, which drives a set of magnets through a gear reducer and shaft, thus due to the magnetic coupling, the rotation is transmitted to another set of magnets mounted on the mixer.

In U.S. patent No. 3140079 (Baermann) provides for the application of a large rotating plate which carries a series of magnets arranged circumferentially spaced relative to each other, and passes under one of the sections is much less conductive disk that can rotate.

In U.S. patent No. 1242493 (Stringham) and in U.S. patent No. 1420773 (Stainbrook) discloses an electric mixer for preparing beverages, in which the stator of the AC motor comprises a rotor located in the Cup mixer or in its basis, interacting with him. In the patent Stringham (Stringham) a rotor in the form of a squirrel wheel lies in the plane of the windings of the stator. In the patent of Steinbruch (Stainbrook) the rotor of the AC motor is mounted in the base of the Cup compounds the body, and the coils of the stator are located under the Cup. For such separate structures of the AC motor are all of the same problems in terms of torque, speed control, eddy current losses and interference, due to the electromotive force, which is generally typical for AC motors, the evidence in this case with greater force due to the physical separation of the windings of the stator relative to the rotor. Such motors do not provide good enough to regulate the speed of their rotation. They do not use the link provided by the magnetic field caused by passing DC. The location of the rotor of the electric motor inside the container or Cup leads to unwanted weight gain node Cup Assembly, making it difficult to use a Cup because of gyroscopic effects, if you take the Cup in his hands, while the rotor is still spinning.

If you position the rotor of the brushless direct current motor in the base of the Cup mixer, then the Cup will not only be hard, being the strongest gyroscopic effect, but will also begin to "stick" to the metal sinks and counters and to attract individual metal objects, such as Cutlery, DVD the particular equipment bars or coins.

Thus, the main purpose of the present invention is to provide a drive system that provides reliable transmission of power, imparting rotary motion with variable speed corresponding to the slave element is made rotatably and hermetically razobscheniyu relative to the origin of the driving force.

Another objective of the present invention is to provide such a drive which is automatically triggered doedens when the load exceeds a preset value, or when the driven element is moved from its working position.

Another aim of the invention to provide a magnetic actuator that provides these benefits, a driven element which is located in the removable bowl mixer, with bowl of mixer easily inserted inside of the mixer and is removed from the mixer, and the Cup is easy to use when it is removed from the mixer, i.e. it is, for example, does not show any significant gyroscopic effect or magnetic attraction.

Another objective of the present invention is to provide malaysiasingapore that does not require major maintenance and non-mechanical connection between the motor and the drive element and, in particular, such compounds, which does not require large RA who moves to the service, related content the modern belt drives, mechanical clutches and brakes in good condition.

Another objective of the present invention is associated with the creation of a magnetic drive for a mixer or other similar device having the above advantages which is compact, has a low weight, easy handling and easy cleaning.

Another objective of this invention is to provide drive performance which can be programmed and braking which can be made quickly and reliably.

Disclosure of inventions

In a preferred its use as a drive for a mixer or other device for processing of food products the present invention provides the use of a motor for rotation of the annular magnet, preferably of the site, consisting of two ring magnets with axial poles, which is located with a small gap with respect to the disc-shaped drive plate made of conductive magnetic material. Magnet Assembly and drive plate have mutually agreed with each other that are located around the circumference of the pole. Magnet Assembly preferably has a kit consisting of an even number of poles of permanent magnets, performed usually in the form of a disk with the capabilities of or segments with alternating polarity. The drive plate preferably is a thin sheet of ferrous material, for example, such as cold rolled steel, with radial slots, which delimit a pole and control eddy currents. Magnet Assembly generates a sufficiently strong field (lines of force), which, despite the gap in the typical case includes the appropriate air gaps having a high magnetic resistance, however, induces magnetization of opposite polarity to the poles of the disk. Under the influence of this induced magnetization occurs clutch magnet Assembly with a drive plate, which is contained in the movement. In the mixer drive plate mounted for rotation in the base of the Cup mixer and serves as a support for the shaft, which, in turn, is mounted the impeller. Magnet Assembly and the electric motor is housed separately from the drive plate.

Used motor is preferably a brushless DC motor, the stator winding which create a rotating electromagnetic field that interacts with the rotor and creates it torque, and the rotor has a magnet Assembly, similar to the same node, which is due to magnetic forces who clings to disk. Magnetic ring rotor preferably is attached to the magnetic ring of the drive by connecting these magnetic rings with opposite surfaces of a disc made of cold rolled steel. The rotor magnetic ring drive and the drive plate are arranged coaxially to each other when the plate and a corresponding device for which it is intended, for example, such as a mixing Cup, are in the working position. The motor housing and the actuator preferably has a flat top wall which closes a gap between the magnet and plate, similar to the flat bottom wall of the Cup mixer. For magnetic node field strength at its surface, is equal to 1400 Gauss, a specified amount in relation to the mixer is preferably approximately 6 mm (0.25 inch). The use of relatively flat brushless direct current motor mounted under the slave element, gives the part of the drive, where the motor, compact configuration, preferably with a ratio of height to width is only about 1:3.

Considering the present invention in a broad sense as a method, it should be noted that it provides for the existence of stages of rotation of the magnet rotor having multiple poles, located n the circumference at intervals relative to each other, which is achieved through the interaction of the poles of the rotating magnetic field. The rotor, in turn, is connected with the second magnet actuator having exactly the same number of poles, located on a circle, and connected mechanically to rotate together with the rotor. In addition, the proposed method additionally provides for the existence of stages: provide directional magnetic field created by the magnet of the actuator in the axial direction of the rotor so as to induce magnetic poles of opposite polarity in the conductive drive plate, which is mounted rotatably; and placement of the magnet actuator with a small interval at a close distance so that the poles induced in the plate, respectively, followed by the movement of the poles in the rotating magnetic site, despite the presence of a gap, and also to the load, which provides resistance to rotation. Providing directional magnetic field provides for the connection of magnets with thin steel sheet on its opposite surfaces with the formation of a three-layer construction and subsequent polarized ring magnets in the axial direction.

In accordance with another feature of the present invention, the drive, the implementation of the hydrated according to this invention, may also include the appropriate gear having one or more pairs of gears are designed to transmit torque from the drive plate to the driven element such as an output shaft. Specified gear train may include one or more pairs of gears, the dimensional ratio and the mutual arrangement of which provide reduction or increase of the torque transmitted from the drive plate to the driven element. In the preferred application of the drive unit and the gear used to drive the rotation of the knife fixture for cutting ice. The specified device can be configured as a standalone device or this device can be structurally integrated into one unit with a mixer, for example, such a mixer, which is the subject of the present invention, resulting in an automatic machine that combines the mixer and device for shaving ice and intended to make frozen drinks.

Brief description of drawings

These and other features and objectives of the present invention will become apparent from the following detailed description, which should be familiar, at the same time considering the accompanying drawings. Odie is W hat the details indicated on the attached drawings, the same item numbers in all the drawings. Although the accompanying drawings and are intended to illustrate the principles disclosed herein invention, these drawings are made not to scale and shows only the relative sizes.

Figure 1 is the perspective view of a combined machine that combines the mixer and device for shaving ice and designed according to the present invention.

Figure 2 is a vertical section of a combined machine that combines the mixer and device for shaving ice and presented in figure 1.

Figure 3 is a perspective image of a Cup disassembled, used in the mixer presented in figure 1 and 2.

4 is a detail vertical section of a magnetic actuator made according to the present invention, as shown in figure 2, and designed to rotate the impeller, mounted at the base of the Cup mixer.

5 is a perspective representation of the base disassembled, used in combination machine that combines the mixer and device for shaving ice and presented in figure 1 and 2 show a support node of the electric motor for the magnetic drive made in accordance with the present invention.

6 is presented in the perspective image of the dual magnet Assembly shown in figure 4.

Fig.7 - Vertica the capacity section of an alternative execution Cup mixer, made according to the present invention.

Fig - vertical incision site magnetic drive and gear for the part mixer-stromates made according to the present invention, in which is located a device for planing ice.

Figure 9 is a vertical cross-section on the line F-F in Fig to host the magnetic drive and gear shown in Fig.

Figure 10 is a vertical section of an alternative execution of the motor according to the present invention, shown in a disassembled form.

11 is a vertical section, the version of motor, shown in figure 10 and shown here assembled.

Fig - vertical section of the motor is presented on figure 10 disassembled, showing the base of the motor.

Figa is a top view of alternate versions of the bushing shown in figure 10-12.

FIGU is a vertical section along the line a-a' figa for sleeve shown in figa.

Fig diagram of the version of the system designed to control the speed of the motor according to the present invention.

The implementation of the invention

Below are specific examples of implementation of the present invention, providing a full understanding of the principles underlying OS is ove creating disclosed here devices designed for food processing, and magnetic actuators to these devices. One or more examples for these embodiments of the present invention illustrated by the accompanying drawings. Specialists of ordinary skill in the art will understand that various changes and amendments that may be proposed in respect of devices designed for food processing, and magnetic actuators to these devices, which are discussed in the following detailed description of the invention, and such changes and additions can be made for adequate facilities, as well as methods suitable for use in other applications, and all these changes and additions can be made without going beyond the scope of the invention disclosed in this description. For example, the features illustrated and described below as a typical one variant of the invention or presents on one of the attached drawings, can also be used in other variants of implementation of the present invention or another from the attached drawings, resulting in another variant implementation of the present invention. For such changes and additions implies the tsya, that they should remain within the scope of this invention.

Figure 1 and 2 shows an example for the primary application of the present invention, namely mixing and planing machine 10, designed for the automatic preparation of cold drinks in bars and restaurants. Supply of ice from the hopper 12 is gradually fed through a rotating set of blades 14 to the blade 16. Shaved ice comes down the chute 18 with the cover 20, down, falling into the Cup 22 of the mixer, to which you add the liquid ingredients, for example, such as concentrate, flavouring substance and / or alcoholic drink. During the rotation of the impeller (or set of blades) 24 at the bottom of the Cup, for a specified period of time is prepared high quality frozen drink, one that lays down the hill when the spill, and has a uniform that is not speckled and not watery consistency. Although below the invention is described primarily with reference to use in the design of a mixing-planing machines, it should be understood that the present invention can be used in a wide variety of practical applications in cases where you want to provide power transfer with a rotating output shaft of the propulsion force (e.g., electric motor) to a driven element under on ruskai, in particular, a rotating driven element inside of the container, which is sealed relative to the origin of the driving force and are removable with respect to it. The present invention can be used, for example, in the construction of a variety of equipment for food processing, for example, such as household mixers, mixers for food, for food processing and juicing.

Magnetic drive 26 of the impeller 24 is the main object of the present invention. As shown in Fig.3-5, the actuator 26 includes, in General, all the drive plate 34 mounted for rotation inside the base 22A of the Cup 22 of the mixer, and the brushless motor 28 DC, includes coil stator 30 and rotor 32. The rotor, in turn, includes dual magnet Assembly 35, preferably formed by the annular magnet 36 of the rotor, the annular magnet 38 of the actuator and the disk 40, made of namagnichivayushchego material, preferably of cold rolled steel, and is inserted between the magnets 36 and 38.

Each of the ring magnets 36 and 38 has a lot located on a circle and oriented in the axial direction of the poles 42, shown in Fig.6 in the amount of eight pieces. Adjacent to each other on the sides of the corresponding CE the cops have opposite polarity. Although preferred and is number eight poles, can be applied to any even number. Preferably each pole 42 is formed in the corresponding permanent magnetic area 44, which, in General, the shape of the disk sections, and these sections is composed of a continuous ring, the material which has strong magnetic properties, for example, it can be ceramic magnets sold by Hitachi Corporation. Magnetic zone 44 of each of the magnet 36 and 38 can be made also in the form of individual parts, concatenated or otherwise mechanically connected with each other with formation of a corresponding ring node with flat end surfaces and, in General, with a cylindrical outer wall. Plastic sleeve 43 with radially directed abutment walls 43A fills the center of the magnets 36, 38, facilitating installation of the specified nodes to the Central shaft. North pole magnetic zone 44 is adjacent to the South pole of the magnetic zone 44. Nodes 36 and 38 are then attached to the disk 40 is preferably such that each permanent magnetic area 44 of one such node corresponded to the same magnetic zone of another such node, but with opposite polarity, to avoid repulsive magnetic force between the magnets 36 and 38. The reservoir is essawy layer 48 covering promotes fixation of three-layer structure of each node. Thanks to this configuration, the magnet Assembly with oriented in the axial direction of the zones 44 of the magnetic poles and the corresponding return paths having a low magnetic resistance, and represents a steel disk 40, for all magnetic zones 44 are provided as the orientation of the magnetic field (magnetic flux)generated by the magnet 36 of the rotor along its centerline (as shown in the drawing in the lower direction) to the coils 30 of the stator and the direction of the magnetic field created by the magnet 38 of the actuator, also along the centerline (as shown in the drawing in the upper direction) to the plate 34 located at the base 22A of the Cup. Under the influence of the magnetic field created by the magnet 38 of the actuator and the directional centerline, is inducing magnetic fields of opposite polarity in the respective poles 24A formed in the drive plate 34, despite the presence of the gap 46, although it is a very small gap between, in General, a flat upper surface 38A magnet Assembly and, in General, a flat bottom surface 34b of the plate 34.

In the preferred his performance, illustrated by the attached drawings, there is shown a mixer-Stroitel (used for mixing ingredients in the 80 liquid is ounces of frozen drink), the permanent magnet 36 provides a magnetic field strength component on its surface approximately 1400 g, and the gap 46, measured in the axial direction, is approximately 6 mm (0.25 inch). This gap is formed, as shown in figure 4, not only of the four layers 48, 50, 52, 22b, which are typically made of plastic, but also includes air gaps 54 and 56. Layers 48 and 52 are thin plastic coatings applied by respectively forming on top of the magnet Assembly 35 and the drive plate 34. Layer 50A is a relevant part of the flat top wall of the base 50 of the mixer-stromates 10. Layer 22b is a flat bottom wall of the base 22A of the Cup.

The air gap 54 is a small clearance between the molded upper surface 48 of the rotor and the wall 50A. The gap 56 is a small clearance between the wall 22b and molded the upper surface 52 of the drive plate. Specialists in the art will easily understand that this gap is a significant source of magnetic resistance, which occurs in the magnetic circuit between the ring magnet 38 and the actuator plate 34. Made in the form of permanent magnets corresponding rotors used in the construction known the brushless DC motor, for example, in motors with disk diameter, 5 inch, sold by the company with limited liability "integrated strategic communications Sdn motion Controls", , Torrington, Connecticut, USA, under the model number 50 and have comparable sizes, design and intensity of the generated magnetic field in comparison with the corresponding parameters of the magnet 38, is not able to provide a strong enough connection with the plate 34 through the gap 46 in order to provide rotation of the disk, resulting in the action of the mixer-Stroiteli.

As shown, particularly in figure 4 and 5, the motor 28 is mounted inside the base 50 by screws 60 which pass through the steel cover 62 of the electric motor and the rear leg 64 of the stator and screwed into threaded holes 66, made in the bottom wall 50b of the base, designed for fastening to it of an electric motor. Rear bearing stator 64 has a Central hole which is inserted into the bearing unit 68, which rotates the shaft 70 of the motor. Using the appropriate screws (not shown)passed through holes 54A in the posterior pole of the stator and twisted pair in the front leg 72 of the stator, is provided by mounting this support so that she was pinching a ring 74 made of an appropriate grade of steel, when laid end-to-end Assembly to katushka. Front bearing 72 of the stator has the following peripheral surface 72A, which is made inclined and has the appropriate slot under winding 30 of the stator, as provided for in the design of the above-mentioned motor model 50. (Those parts of the windings, which are arranged in these grooves, for clarity, not shown.) These windings are three-phase, and when powered from a conventional circuit designed to supply current to the brushless DC motor, provide a rotating electromagnetic field. A support base and a stator preferably are made of high-strength plastic, curable molding, and wall thickness of these supports are chosen to provide a rigid attachment of the motor 28.

Dual magnet Assembly 35 with the shaft 70, is fixed at its center, is inserted to slide in a bearing 68 (figure 4). Node 35 is rotated in the bearing 68, providing the appropriate clearance on all sides of the node 35. As already mentioned here above, the multi-pole magnetic field, DC, generated mainly the lower (as shown in the drawing) of the magnet 36 of the rotor is directed mainly downwards and interacts with the rotating electromagnetic field generated by the coils 30 of the stator, when they are energized. BP is in this electromagnetic field results in a corresponding interaction with the magnetic rotor Assembly to the emergence of torque under the influence of which is the rotation of the rotor with a corresponding speed. The disk 40 is located between the magnets 36 and 38, transmits this torque to the magnet 38 of the actuator mounted on the plate. As a precaution to prevent fire in case of overheating of the coils 30, provides for the application of a ring-shaped protective casing 76, the lower flange 76A is included in the air gap between the outer edge node 35 and the cylindrical inner side wall of the rear legs 64 of the stator, overlapping at the same time, essentially fully this gap (leaving free only a very small clearance to avoid frictional contact with the magnetic node 35). The protective cover fills this gap sufficient to prevent the flow back of the air, which otherwise would be a source of oxygen that feeds the fire.

Magnet Assembly 35 with a diameter of five inches weighs approximately three pounds (preferably of 1.5 ka). Under typical operating speeds, ranging from 4,000 to 10,000 rpm, this node can develop significant forces acting on the mounting structure; in particular, with the rapid change in the magnitude of these forces can occur vibration. The mounting frames are quite the same is rigid with an appropriate choice of materials, used in their manufacture, to properly define the desired size of these structures, as well as the corresponding study of the entire mounting structure in General, for example, provision may be made for the use of appropriate tools, reinforcing walls, such as outside ribs, which allows to provide a high resistance of these structures to the impact of various forces and torques that occur during normal operation, and thereby prevent vibration, which otherwise would lead to a loosening of fastenings, increased wear and, ultimately, to the destruction of the motor.

The actual position of the rotor is monitored using three conventional sensors Hall effect, mounted in a known manner on the motor housing or on the base 50. The signals from these sensors indicating the position of the rotor, an input of the known electronic control of the control circuit providing power to the windings 30 of the three-phase stator, thereby: (a) obtaining a starting torque; (b) a gradual increase in the speed of rotation of the rotor until the output on the selected operating speed; (C) maintaining the rotational motion on this selected speed under load; and then (d) rapid and h is reliable braking. Thus, the entire workflow of the motor is controlled by a respective electronic device and can be programmed accordingly. Motor braking is performed also by using the appropriate electronic control devices, the currents induced in the windings 30 during braking, are scattered through large resistors or field-effect transistors mounted on the heat sinks.

As shown in Fig.2-4, and particularly in figure 3 and 4, a conductive drive plate 34 is attached without enabling its rotation on the lower end of the shaft 78, which rotates together with her needle bearings, two pairs of bearing assemblies 80, forming a set. Provides for the application of the corresponding covering the brass sleeve 82, which is mounted on the press fit in the Central hole 22 C with a cylindrical wall, made in the plastic base 22A, and is intended for holding the bearing blocks 80 on the spot. At the bottom of the Cup has a sleeve 82, in which the reamed hole of enlarged diameter, which is inserted and where the fixed rotating seal 84, made of appropriate elastomeric material, for example of wear-resistant rubber. This seal has three facing the inside of the visor 8A, located with a gap relative to each other, the inner edges of each of which are put into contact with the shaft 78, forming miscorrection movable or sliding seal. The seal 84 provides retention of the liquid in the Cup 22, despite the presence of a rotating shaft penetrating into the Cup through the bottom wall. The lower visor a is put into contact with the shaft 78 so that it is while inside the annular groove of the shaft, which holds the visor in position and gives it stability. Deep annular groove 84b made on the lower end surface of the seal allows the visor seal to bend elastically, albeit in a relatively small, tightly clinging to the shaft. Top seal is provided to shoot the cap nut 86 on the upper end of the shaft 78, thereby securing the blades 24, clampable between the three washers a, 88b and 88p.

The drive plate 34 is a main part of the site, drive plate, which also includes lots of vertical, radially spaced ribs 90, centered on a corner of his location relative to each pole 34a (Fig 3). These ribs 90 and the Central sleeve 91 which surrounds a shaft 78, preferably formed completely with the bottom layer is m 52. The plate 34 is preferably formed of a thin sheet of ferrous material, for example, such such as cold rolled steel, and the thickness of the sheet may be, for example, 0,058 inches, and there is plenty of open radial slots 92, which separate pole 34a between them. In addition, the slots 92 also prevent the occurrence of eddy currents induced in the plate under the influence of a rotating magnetic field created by the host of the magnet 38 of the actuator. As the plate 34 is relatively thin and has a slot, it can accordingly be subjected to deformation when it exerts its effect is very significant attractive magnetic force created by the node 38 of the magnet of the actuator plate, and the magnitude of this force in a typical case is, for example, approximately five pounds, and as a result of this deformation, the plate can come into frictional contact with the base 22b of the Cup.

As shown, the attracting magnetic force acting on the drive plate 34 preferably is perceived in a single Central pivot point defined by the hemispherical ball support, serving relative to the bottom surface of the drive unit, and the plate 96, made of stainless steel and mounted flush with the upper surface is completely wall 22b of the base Cup. This layout provides the appropriate resistance to the action of the magnetic forces tending to move the plate 34 in a downward direction, and simultaneously facilitates rotation of the shaft 78 through the appropriate reduction of friction, resulting in less wear.

As shown in Fig.7, in an alternative embodiment of the Cup 122 of the mixer provides for the installation of the shaft 178 with the possibility of its rotation so that it rests on two needle bearing 200A and 200b, which are located spaced relative to each other in the axial direction. There is also a corresponding cylindrical spacer part 202, which is inserted between the needle bearings 200A and 200b and surrounds a shaft 178. The drive plate 134 is attached to the shaft 178 by means of the screw 206, which with its outer thread screwed into the internal response thread, made in the Central hole of the shaft 178. In addition, may also be provided with a corresponding flange 204 mounted on the end of shaft 178, while the drive plate 134 is clamped between the flange 204 and the washer 208 mounted under the screw head 206. With this specific arrangement allows rotation of the shaft 178 supported on needle bearings 200A and 200b and secured by the screw 206, through the I which virtually eliminates the need to use a hemispherical ball joint, serving relative to the bottom surface of the drive unit, and plate 96, made of stainless steel and mounted on the wall of the base Cup. It should be understood that the component parts used in the embodiment of the present invention represented by figure 7, similar to the corresponding parts previously discussed herein above description with reference to the previous example implementation of the present invention, and therefore the same numbers of positions respectively indicated by the same details of these two options, but with the addition of the number 100 for each respective position in the second embodiment, in order to distinguish the described embodiments of the present invention with each other.

It was found that grip, or traction force caused between the magnet 38 and the drive plate 34, increases not only a function of magnetic field strength, providing the corresponding impact on poles 34a, and the absolute value of the inverse size of the gap between the magnet and the disk, but also a function of the magnitude of the reverse of the thickness of the plate 34, and the width of the slots 92. In General, the thinner the plate and wider than the slot, the greater the magnitude of the traction force generated by application of the magnet corresponding sub is CA. In the currently preferred for plate diameter 4,425 inches (112 mm) is the width of the slits of approximately 0,245 inch (6 mm).

The desired level of traction force depends on the specific characteristics of each individual application of the present invention. This level is chosen so to ensure reliable coupling of the drive plate with magnet drive in those cases where: (a) the impeller 24 begin to operate under the load of shaved ice and liquid ingredients of the frozen drink in the Cup mixer; (b) working speed is increased to a selected value of the operating speed, which in typical cases up to several thousand revolutions per minute; and then (C) stops the movement of the impeller and melt mass inside the Cup and communicating with the impeller. However, the magnitude of the traction force also selected so as to provide separation and thus the automatic tripping of the actuator 26 in the case when the Cup 22 is removed from the wall 50A of the base, where the Cup is in working its position under the chute 18 to release the ice, or in the case when the load exceeds her maximum value. The last of these situations may occur, for example, when the learn when frozen drink inside the Cup, "freezes nammerda", that is partially or completely transformed into a solid frozen mass, or in the case when in the mixer during his work someone accidentally dropped a spoon, jewelry or a cork from a bottle. Reteplase, magnetic drive 26 automatically and immediately terminates the supply of impeller motor energy, thereby making it possible to avoid or to minimize the probability of causing injury to any person (s), (- do) near the mixer or near the machine. In addition, this feature allows you to avoid the costs which are incurred when using mechanical couplings in connection with the necessity of carrying out its maintenance.

Although the brushless DC motor is known as providing a relatively low values of torque at its output shaft, the present invention made it possible to overcome this shortage. However, in order to obtain the optimal performance characteristics of the motor 28, the winding coils 30 of the stator preferably be implemented in such a way as to obtain the optimum values of torque on ugodnom the motor shaft at a selected value of its operating speed, for example, approximately 8000 Rev/min

It is important to note that the node of the drive plate, which consists mainly of a thin metal disk with a thin plastic coating formed on its surface, is lightweight and does not have magnetic properties. Furthermore, there is only a very small gyroscopic effect when the Cup is removed from the mixer-stromates after the drink is prepared. Thus there is only a small rotational moment created by the rotating blades and rotor hub drive plate. Because the Cup is lightweight and has no magnetic properties, it is easy to use.

Besides, it is evident the importance of the fact that the magnetic actuator 26 in accordance with the present invention, allows for the installation of Cup 22 to its place in the working position on the mixer-Stroiteli 10, performing only very simple sliding movement in the transverse direction, at which a smooth flat base 22b of the Cup slips freely over the smooth surface of the flat portion 50A of the base of the machine. This eliminates the need for vertical lowering cups firmly down when putting it on the corresponding connecting node, which must be made when applying fur is practical vzaimostsepljaemost drive, and then to raise the Cup straight up, making this a big enough force to remove a Cup from the mechanical connection node. With a possibility of installation of the cups in place and remove it simple sliding movement is performed in the transverse direction, not only improves the usability of the Cup, but there is also the opportunity to reduce the size of the clearance required above the Cup in a vertical direction. With this arrangement, intended only for the lower Cup inward sliding movement is facilitated by the operation of cleaning the base of the mixer to do this, just wipe with a smooth, flat surface. Spilled liquid with melted mass can flow independently or overcrowded force on this surface in the flow direction 94, made in the base of the machine at the rear wall 50A. In the event of any threat to security, if it is overloaded mixer or unexpected occurrence of any unforeseen situation that requires quick removal of the Cup from the mixer, it can be easily and simply removed from the machine by merely sliding movement. Moreover, what is very important, if the employee will become impatient and too quickly pull the Cup from the mixer, the e waiting until the motor completely stops, that quite often happens in the everyday practice of the bar, then in the course of this process at the time of removal of the Cup will automatically disconnecting the drive of the impeller from the motor 28 (offset and (or) lift the Cup from his seat will exit poles 34a of the situation in which they are in corresponding relationship with the magnetic lines of force created by the magnetic hub 38.) In conventional mixers-stroitelyah with belt drive with mechanical coupling, such hasty removed therefrom Cup leads to undesirable mechanical stresses, as well as to accelerated wear of gears and couplings.

An additional important advantage of such a drive is that its application provides the possibility of placing the motor directly under the faucet, which avoids the need to install the appropriate drive belts or chains together with pulleys or sprockets, but there is still a need compactness of the entire device as a whole both in vertical and in horizontal direction, considering the height of the motor, and the vertical dimension of the relationship between e what extradigital and Cup height as well as the corresponding vertical clearance required for appropriate manipulation of the Cup when installing it in place with securing the specified communication between it and the motor and when removing the Cup.

Although this invention and discussed herein above description with respect to preferred variant implementation of the present invention, it should nevertheless be understood that various possible amendments that may be proposed by experts in the field of technology. For example, although the invention is considered herein above description as implemented in the form of a brushless direct-current motor may also receive certain benefits provided by the present invention, and in the implementation of it in the form of an AC motor, an output shaft which in this case requires the presence of appropriate communication with the magnet of the actuator plate. Although the rotating magnet Assembly and is considered herein above description, as the corresponding element in ensuring proper communication between the plate and the base Cup may however also create a corresponding electromagnetic or magnetic field by means of site consisting of electromagnets, or other devices incorporating permanent magnets, for example, such devices, which are in the form of a separate single-pole permanent magnet corresponding configuration in relation to provide them with magnetic properties or acting together in combination with the corresponding ferromagnetic materials so as to get the required location of the magnetic poles. Although the present invention discussed herein above description with reference to the plate, installed rotatably at the base of the Cup mixer, a driven element may take other various forms, and it doesn't have to be the vessel containing the liquid. Although shown here above description, and indicate that the magnets and the plate have the same number of poles, as is well known, however this solution is not inherently necessary to the construction made according to the present invention, was healthy. There are also legitimate uses a wide variety of different mounting devices and reference devices, which allow rotation for dual magnetic the th node 35, and to drive the conductive plate 34. In addition, although illustrated here above description, specified on the application of plate 34 with radial slots as a means for education of poles 34a and deter the appearance of eddy currents in the plate, a specialist in the art will be able easy enough to figure out what you can use and also other a variety of known devices, ensuring the formation of poles and inhibiting the formation of eddy currents. In addition, although in this description and indicated that the magnets are connected to the corresponding metal disk, any need in an application of this disc however is not.

In figure 2, 8 and 9 illustrate another variant of the practical implementation of the present invention, namely in the form of a device for planing ice intended for filing astroganga ice in a mixer mixing a planing machine 10. A device for planing ice includes the node 300 magnetic drive gear Assembly, which causes the rotation of the blades 14 in order to ensure supply astroganga ice into the Cup 22 of the mixer on the chute 16. The node 300 magnetic drive gear Assembly connected with the output shaft 302 at the upper end of which is mounted on a set of rotating blades 14. In addition, the node 300 magnetic drive gear Assembly also includes a corresponding magnetic actuator 304, which by its design and its action principle is similar to the magnetic actuator 26 of the mixer. The output power of the magnetic actuator is transmitted through gear 306 to the output shaft 302 fixtures for planing ice. The composition of this gear includes three gears, namely the gear 328 motor block parasitic gears 332 and the ring gear 334.

Magnetic drive 304 for stromates includes, in General, circular drive plate 308, mounted rotatably in the housing 309 fixtures for planing ice, designed to accommodate the motor and the corresponding brushless motor 310 DC, with coil 312 of the stator and the rotor 314. When the rotor 314, in turn, is equipped with dual magnetic junction, preferably formed of an annular magnet 316 of the rotor, an annular magnet 318 of the actuator and disk 320, made of namagnichivayushchego material, preferably of cold rolled steel, and is inserted between the magnets 316 and 318, with which it is respectively associated.

Each of the ring magnets 316 and 318 has a lot located on a circle and oriented in the axial voltage is the making of the poles, as for the ring magnets 36 and 38 of the magnetic mixer drive, discussed herein above the description. Therefore, the ring magnets 316 and 318 for the design and location of its poles similar ring magnets 36 and 38 of the magnetic mixer drive. Requires the presence of the plastic sleeve 321, which fills the centre of the ring magnets 316 and 318, allowing easier installation of the magnets on the Central shaft 322. Ring magnets are attached to the disk 320 preferably so that each pole of a single annular magnet corresponded to another pole annular magnet having the opposite polarity, in order to avoid repulsive magnetic force between the magnets 316 and 318. The plastic coating layer is applied to the magnets 316 and 318, as well as on disk 320, contributes to the bond magnet Assembly.

Brushless motor 310 DC is installed inside the housing 309, designed for this engine, underneath the rotor 314. The motor 310 in their design and operation principle is similar to the motor 28 of the magnetic actuator 26 of the mixer, discussed herein above the description. Coil 312 of the stator are three-phase, and when powered from a conventional circuit designed to supply current in the brushless motor pic is wannago current provide a rotating electromagnetic field. The rotor 314 together with the shaft 322, fixed at its center, is inserted into the corresponding sliding movement in the bearing 324. The rotor 314 is rotated in the bearing 324, providing the appropriate clearance from all sides of the rotor 314. Multi-pole magnetic field, DC, generated mainly the lower annular magnet 316 of the rotor is directed mainly downwards and interacts with the rotating electromagnetic field generated by the coils 30 of the stator when the coil is energized. The rotation of this electromagnetic field results in a corresponding interaction with the magnetic hub 314 of the rotor to the emergence of torque under the influence of which is the rotation of the rotor with a corresponding speed. Disk 320 located between the magnets 316 and 318, and transmits this torque to the ring magnet 318 of the drive.

As discussed herein above description, with respect to the rotor 32 of the magnetic actuator 26 of the mixer, the actual position of the motor 314 can be monitored using three conventional sensors Hall effect, mounted on the body 309 of the motor. The signals from these sensors indicating the position of the motor, an input sootvetstvuyuschengo control of the control circuit, providing power to a winding 312 three phase stator, thereby obtaining the starting torque, the gradual increase in the speed of rotation of the rotor until the output on the selected operating speed, maintaining the rotational motion on this selected speed under load, as well as fast and reliable braking. Thus, as discussed herein above the description applied to the motor 28, the entire workflow of the motor 310 may be controlled by appropriate electronic device and can be programmed accordingly. Motor braking is performed also by using the appropriate electronic control devices, the currents induced in the windings 312 during braking, are scattered through large resistors or field-effect transistors mounted on the heat sinks.

The drive plate 308 may be designed in such a way that its design was similar to the design of the drive plate 34 of the magnetic actuator 26 of the mixer, discussed herein above the description. The drive plate 308 is attached without enabling its rotation on the lower end of the drive shaft 326. Gear 328 motor installed without assurance may the tee its rotation to the gear shaft 329 motor, this shaft, in turn, is fastened to the upper end of the drive shaft 326. Gear 328 of the electric motor preferably is a gear with helical teeth having a lot of slanting teeth 350 gears. The drive shaft 326 is inserted into a corresponding axial hole of the gear shaft 329 and fixed it without enabling its rotation relative to the gear shaft 329 and gear 328, which allows the drive shaft 326 to perform a rotational movement together with the gear 328. Thus, torque, under the influence of which is made of rotational movement can be transmitted from the drive plate 308 on the gear 328 through the drive shaft 326. This drive shaft 326 and gear shaft 329 gear 328 of the electric motor are mounted rotatably in two pairs of journal bearings 330a 330a and.

Block unwanted gear 332 has a mechanical connection with the gear 328 of the motor and driven by the gear 334, ensuring the transmission of torque under the impact of which is made of rotational motion from the gear 328 of the motor to the driven gear 334. Block unwanted gear 332 includes an elongated upper gear portion 332A of cylindrical shape having a lot of slanting teeth 352 of the gear and, in General, a disc-shaped lower gear frequent is 332b. The lower gear portion 332b is equipped with a number of slanting teeth 354 gears corresponding in size and shape to the teeth 350 gear 328 of the motor. Teeth 350 gear 328 of the motor are in engagement with the teeth 354 of the lower gear portion 332b, while ensuring the transmission of rotational motion and the corresponding torque under the impact of which is made of rotational motion from the gear 328 of the motor on the block parasitic gear 332. The block parasitic gear 332 is attached without the possibility of relative rotation to the gear shaft 356 which is mounted for rotation in two journal bearings a and 333b.

Driven gear 334 is in General cylindrical shape and is fixed without the possibility of relative rotation to the output shaft 302 so that it rotates together with the output shaft 302. In particular, the driven gear 334 is attached in the axial direction on the output shaft 302 so that the output shaft was located in the Central hole of the driven gear 334. This driven gear 334 is equipped with a number of slanting teeth a gears corresponding in size and shape of the teeth 352 of the upper gear portion 332A block unwanted gear 332. The teeth 352 of the upper gear portion 332A are in engagement the teeth a driven gear 334, while the transmission of rotational motion and the corresponding torque under the impact of which is made of rotational movement from block parasitic gears 332 on the driven gear 334. The output shaft 302 and the slave gear 334 is installed with the possibility of rotation in the two pairs of journal bearings a and 336b.

Gear 328 of the rotor block parasitic gears 332 and the ring gear 334 preferably are helical gears, the teeth of which are oriented along a helical line, and made these gears from lightweight high-strength plastic, for example from acetylate or nylon plastic. However, the specialist in the art will recognize that in the design of the gear 306 in accordance with the present invention may also be used and various other gear, for example, spur gears, worm gears, or various combinations of all of these types of gears, and also be used for the manufacture of other materials, for example, different metals or composite materials.

Gear ratio gear 306 in accordance with the present invention, may be adjusted to suitably increase or decrease the speed VR is stilnovo motion or torque value, under the influence of which is made of rotational movement and which is transmitted from the drive shaft 326 of the magnetic actuator 304 to the output shaft 302 fixtures for planing ice. For example, the gear ratio gear 306 can be adjusted so as to provide the corresponding decrease in the speed of rotational movement and thereby increase torque under the impact of which is made of rotational movement and which is transmitted from the drive shaft 326 to the output shaft 302. Conversely, the speed of the rotational motion transmitted gear 306 can be increased and the torque under the impact of which is made of rotational movement, respectively reduced if properly adjust the gear ratio gear 306 in the opposite direction. Such adjustment of the gear ratio can be realized by a corresponding change in the number of teeth on each gear, the number of gears and / or sizes of the gears included in this gear, which is in itself known in this technical field.

In a preferred embodiment, the device for planing ice in accordance with the present invention is required to ensure that the speed of rotation of the drive shaft 326 in the device for planing is IDA, approximately 540 rpm to achieve the most efficient operation of the specified device for planing ice. Magnetic drive 300, made in the preferred embodiment according to the present invention based on the use of a brushless direct current motor, in typical cases provides an operating speed of about 6000 rpm, Respectively, the gear ratio gear 306 is in this case approximately 11,1:1.

Specialist in the art will easily recognize that the node magnetic drive gear Assembly according to the present invention can find the widest practical application, not only in the here above the device for planing ice, in all cases, when you want to transmit motive power from the rotating shaft of the electric motor to any driven element is under load, including various equipment for food processing, for example, such as mixers, food mixers, different devices for food processing and juicing.

Additionally, despite the fact that the device for planing ice according to the present invention is considered herein above description, only only is as an integral part of the combined machines, combining the mixer and device for cutting ice, the specialist in the art will easily recognize that the device for planing ice can be made in the form of a completely standalone device, i.e. the device can be manufactured as a separate device, not intended for installation in the mixer.

In addition, the specialist in the art should also be clear that such factors as the type and number of gears, the size of the gears, the number of teeth of the gears used in the gear discussed herein above the description of the invention in connection with the use of this transfer in the design of the device for planing ice, made in accordance with the present invention, are given here only for example. These characteristics, as well as other signs of the gears may be varied in order to obtain the exact same similar or totally different gear ratios, depending on the specific requirements for each individual application gear, but not going beyond being and scope of the present invention. For example, design considerations associated with restrictions on size and weight, can dick is to find the number, the type and amount of gears, and the number of gear teeth, providing the desired gear ratio.

These and other changes and additions that can be offered by specialists in the art, familiar with here above description of the present invention in light of the accompanying drawings are included within the scope of the invention defined by the attached claims.

Figure 10 presents a vertical section of an alternative execution of the motor according to the present invention, shown disassembled. As shown in figure 10, the motor 400 may include a shaft 410 of the motor; the rotor 420 mounted on the shaft 410 of the motor, and the stator 430 located around the shaft 410 of the motor. The rotor 420 may include a magnet 440 actuator, the sleeve 450 and the magnet 460 rotor. The stator 430 may include at least one coil 470 stator and the housing 480 stator.

In one type of execution the stator 430 may be equipped with at least one Hall effect sensor that monitors the position of the rotor 420 in accordance with the scheme shown earlier in discussed here above description.

As shown in figure 10, the magnet 440 actuator and the magnet 460 rotor may include respectively first calcev the first magnet and the second ring magnet. In an alternative embodiment, the magnet 440 drive and(or) the magnet 460 rotor may include a number of separate magnets located around the shaft 410 of the motor. This set of individual magnets may include magnets arcuate shape. In one of the embodiments of the present invention, two or more magnets can be connected to each other by means of adhesives. As such adhesives can be used an appropriate adhesive, a conventional sealant, or adhesive of some type. In one of the embodiments of the present invention the magnet 440 drive and(or) the magnet 460 rotor can be a magnet, made at least partially from a rare earth material. For example, the magnet 440 drive and(or) the magnet 460 rotor can be a magnet, made at least partially from neodymium. The potential benefits obtained by the use of magnets made from rare earth materials, can be corresponding reduction in the weight of the motor 400, making it possible to achieve less heat, noise reduction and(or) reduce the vibrations generated during operation of the motor 400. Magnet 440 drive and(or) the magnet 460 rotor can be essentially centered and(and and) are located, essentially symmetrically with respect to the shaft 410 of the motor.

In General, the sleeve 450 may have a top surface 452 of the sleeve facing in the opposite direction relative to the stator 430, and the bottom surface 454 of the sleeve facing in the direction of the stator 430. The sleeve 450 may be essentially centered and(or) is located essentially symmetrically with respect to the shaft 410 of the motor. Magnet 440 actuator can be coupled with the top surface 452 of the sleeve and the magnet 460 rotor can be coupled with the bottom surface 454 of the sleeve. On the top surface 452 of the sleeve may be made of the recess 456, in which is inserted the magnet 440 drive. The recess 456 may be performed so that the top surface 452 of the sleeve is essentially completely covered a magnet 440 drive. In an alternative embodiment, the recess 456 can be made so that some portion of the magnet 440 drive acted up relative to the top surface 452 of the sleeve. The bottom surface 454 of the sleeve may have a side wall 458, protruding downward relative to the bottom surface 454 of the sleeve and the magnet 460 rotor may be coupled to the side wall 458. The side wall 458 may have an internal surface 459, addressed to the shaft 410 of the motor, and the magnet 460 rotor can be coupled with the inner surface 459.

Applicatio who have a variety of configurations of execution of the rotor 420. For example, the top surface 452 of the sleeve and(or) lower surface 454 of the sleeve may be essentially flat. In addition, the top surface 452 of the sleeve may also have a side wall protruding upward relative to the upper surface of the sleeve and the magnet 440 drive can be concatenated with the specified side wall in the same way as described previously herein above description, in relation to the magnet 460 rotor. Additionally, on the bottom surface 454 of the sleeve can be made corresponding recess into which is inserted the magnet 460 rotor in the same way as described previously herein above description, in respect of the magnet 440 drive.

The sleeve 450 may be made of metal or of a corresponding namagnichivayushchego material. In an alternate version of his performance, the sleeve 450 may be made from plastic.

Magnet 440 actuator and the magnet 460 rotor can have multiple poles, located on a circle. Magnet 440 actuator and the magnet 460 rotor can be arranged so that their poles were respectively centered relative to each other according to the procedures discussed here previously with reference to Fig.6 and in the above description.

Magnet 440 actuator and the magnet 460 rotor can be coupled with the sleeve 450 so that the magnet 440 drive, MAGN the t 460 rotor and the sleeve 450 is rotated together around the shaft 410 of the motor. Magnet 440 actuator and the magnet 460 rotor can be coupled with the sleeve 450, using the most diverse, but quite ordinary schemes. For example, the magnet 440 drive and(or) the magnet 460 rotor can, providing thus the possibility of removing them and replacing fixed to the sleeve 450 using the appropriate fasteners that can be removed and replaced, for example, such as spring clips, pins, nails, bolts, nuts, screws, spikes, rivets, buttons and / or other conventional mechanical fasteners. Alternatively, his performance magnet 440 drive and(or) the magnet 460 rotor can be fastened to the sleeve 450 to the press fit. In addition, in an alternative embodiment, the magnet 440 drive and(or) the magnet 460 rotor can be fastened to the sleeve 450 and with the use of adhesives by means of soldering and / or welding.

Figure 11 presents a vertical section of a variant of execution of the motor shown in figure 10 and is shown in the drawing is assembled. Magnet 440 actuator can be mounted with its lower surface 442 on the top surface 452 of the sleeve. In addition, if desired, as shown in figure 11, the magnet 440 actuator may also be secured to its upper surface 444 of the top surface 452 of the sleeve. As mentioned herein above the description on the top surface 452 is talki can be performed recess 456, which can essentially contain the magnet 440 drive inside. The recess 456 may be performed so as to form a corresponding first gap 446 between the upper border of the location of the top surface 452 of the sleeve and the upper boundary of the location of the magnet 440 actuator mounted on this sleeve. The first gap 446 can be filled with some adhesive substance, providing additional fastening of the magnet 440 to drive the sleeve 450 and allows you to get essentially flat upper surface 422 of the rotor. In one of the embodiments of the present invention said first gap 446 can be filled with a conventional sealing structure. After filling this gap sealant may be subjected to curing. Upon completion of the curing excess sealant can be removed in order to get the result, essentially flat upper surface 422 of the rotor. This sealant can be used also for filling the second gap 448 existing between the cross-border location of the magnet 440 actuator, mounted on the sleeve, and cross-border location of the recess 456. A similar procedure can also be performed by recreating the essentially flat upper surface 422 of the rotor in such Varian the Ah implementation of the present invention, in which some part of the magnet 440 actuator mounted on the respective sleeve, stands up relative to the top surface 452 of this bushing. For example, in this case, the sealing composition may be applied on the top surface 452 of the sleeve located around the portion of the magnet 440 actuator, which acts upwards relative to the top surface 452 of the sleeve.

As shown in figure 10, the stator 430 may be a conventional stator 430 having at least one coil 470 stator. This coil 470 stator may be located on the housing 480 stator, and in the case 480 stator can be performed corresponding hole 482, in which is inserted the shaft 410 of the motor. The stator 430, in particular the specified at least one coil 470 stator can be essentially centered relative to the shaft 410 of the motor. In General, the stator Assembly 430 may be implemented using procedures similar to those procedures that have already been reviewed here previously with reference to figure 3, 4 and 7-9, and in the above description.

As shown in figure 11, the shaft 410 of the motor can be mounted with a possibility of rotation in the hole 482, made in the housing 480 stator and the rotor 420 may be set by rotating it on the shaft 410 of the motor using procedures which, the same procedures that have already been discussed here previously in the above description. Specified, at least one coil 470 stator may include an outer surface 472 of the stator facing in the opposite direction relative to the shaft 410 of the motor, and the magnet 460 rotor may include an inner surface 462 of the magnet of the rotor facing towards the shaft 410 of the motor. In General, the motor 400 may be assembled so that the inner surface 462 of the magnet rotor was at least partially facing the outer surface 472 of the stator. This configuration of the motor 400 is an alternative with respect to the configurations of the motors 28 and 310, shown respectively in figure 4 and 8.

As stated here previously, in one of the embodiments of the present invention, the magnet 460 rotor may include multiple magnets of the rotor, located around the shaft 410 of the motor. In this embodiment of the present invention, at least one of this set of magnets 460 rotor may include an inner surface 462 of the rotor, which is at least partially converted to the outer surface 472 of the stator.

Possible a variety of configurations of the motor 400. E.g. the measures magnet 460 rotor can be located within the specified at least one coil 470 stator. In this embodiment of the present invention the magnet 460 rotor may include the outer surface of the magnet of the rotor facing in the opposite direction relative to the shaft 410 of the motor, and the said at least one coil 470 stator may include the inner surface of the stator facing toward the shaft 410 of the motor. Then the Assembly of the motor 400 can be implemented in such a way that the inner surface of the stator was at least partially directed toward the outer surface of the magnet rotor.

On Fig shows a vertical section of the motor is presented on figure 10 disassembled, showing the base of the motor. The motor 400 may be connected to the base 500 of the motor using conventional mechanical fasteners, such as screws 510, 520. In General, the motor 400 may be this way is connected to all devices used for food processing and magnetic drives that have already been reviewed here previously with reference to figures 1 to 9 and in the above description. For example, the motor 400 may develop an appropriate torque transmitted to the drive plate is from the appropriate device for the processing of food products. In this embodiment of the present invention the magnet 440 actuator may have a magnetic coupling with the drive plate and the stator 430 may be energized to provide the excitation of the electromagnetic field, which interacts with the magnet 460 of the rotor causes the rotation of the magnet 460 rotor. The magnet 440 drive is capable of rotational movement with the magnet 460 rotor and can excite a magnetic field directed toward the drive plate, thereby transferring torque from the motor 400 to the drive plate.

On figa and 13B depict respective top for alternative versions of the bushing of the motor 400, shown in figure 10-12. As shown in figa and 13B, in one of the embodiments of the present invention, the sleeve 650 may include multiple channels 605, passing down from the top surface 652 of the sleeve toward the lower surface 654 of the sleeve. Channels 605 can be performed on the top surface 652 of the sleeve in the usual ways. For example, the channels 605 can be drilled on the top surface 652 of the sleeve. These channels 605 can have many different forms and can be located in different places on the top surface 652 of the sleeve. In one of the embodiments of the present izobreteny the magnet 440 actuator may include a number of separate magnets, the size and shape of which provide the possibility of placing them inside the channels 605. When this specified set of magnets can be placed in these channels in accordance with the relevant schemes discussed here previously in the above description. As mentioned previously, the specified set of magnets can at least partially be made of rare earth material. Obtaining this appropriate potential benefits of such an implementation option of the present invention can provide a corresponding reduction in the weight of the motor 400, making it possible to achieve less heat, noise reduction and(or) reduce the vibrations generated during operation of the motor 400.

On Fig presents the scheme of the version of the system designed to control the speed of the motor according to the present invention. As shown in Fig, the system 700 may include a control unit 710, the actuator 730, the motor 740, the sensor 750 and device I / o 760. In General, the control unit 710 may adjust the current and / or voltage applied to the motor 740 on the basis of the respective input signal 762 received from device IO 760, and(or) the corresponding signal from the sensor 750.

It is shown to Fig, the motor 740 may be connected to the sensor 750, which is capable of measuring protivoelektrodvizhushchej force (counter EMF)generated by the motor 740. Sensor 750 and / or the control unit 710 can detect the rotation speed and / or position of the rotor of the motor 740, based on the measurement results, the counter EMF. Specialists of ordinary skill in the art should be understood that the rotor speed can be determined on the basis of the value of the counter EMF and the position of the rotor can be determined on the basis of location zero(-s) (- EC) crossing the counter EMF. Sensor 750 may signal 752 corresponding to the received measurement result of the counter EMF and(or) other indicators, for example, such as the position and / or speed of rotation of the rotor, the control unit 710.

As shown in Fig, the control unit 710 may receive a signal 762 coming from the device I / o 760. The specified device I / o 760 may include a suitable interface that provides interactive communication with the user. In one of the embodiments of the present invention, the device I / o 760 can provide information about any operating parameter (or parameters) of the motor 740 between the control unit 710 and the user-for Example, the device I / o 760 may transmit the information requested by the user, the rotation speed of the motor 740 in the control unit 710. In addition, the device I / o 760 may transmit data about the actual speed of the motor 740 user.

As shown in Fig, the control unit 710 can provide filing the appropriate control signal 712 to the actuator 730. The specified actuator 730 may submit the appropriate Manager or the start signal 732 to the electric motor 740, based on the corresponding control signal 712, received from the control unit 710. In one of the embodiments of the present invention, the actuator 730 may include a corresponding amplifier. For example, the actuator 730 may include an inverting operational amplifier.

As shown in Fig, the actuator 730 may give an appropriate feedback signal 734 to the control unit 710. In one of the embodiments of the present invention, a feedback signal 734 may be filed on the basis of the magnitude of the current supplied to the motor 740, and the control unit 710 may continuously monitor the feedback signal 734. The control unit 71 may adjust the current, supplied to the motor 740, based on the received feedback signal 734, i.e. on the basis of the magnitude of the current supplied to the motor 740. In one of the embodiments of the present invention, the control unit 710 may be performed in such a way as to regulate the current supplied to the motor 740, based on the fact that the feedback signal 734 exceeds its value. For example, the control unit 710 may be performed in such a way as to reduce the current supplied to the motor 740, based on the fact that the feedback signal 734 exceeds its value, chosen from a condition of safe operation of motor 740.

The control unit 710 may include at least one dedicated processor (SP), well-known specialists of ordinary skill in the art. In one of the embodiments of the present invention, the control unit 710 may include a digital signal processor (PDB), and the specified PDB may include at least one analog-to-digital Converter (ADC) or other(s) component(s)known to the specialists of ordinary skill in the art.

The principle of operation of the control system 700 can be understood when consideration is given here below by way of example. About novelas on information 762, coming from the device I / o 760, the control unit 710 may determine the current value of any of the working parameter of the motor 740. For example, the control unit 710 may determine the operating speed of the rotor of the motor 740. When the control unit 710 can provide filing the appropriate control signal 712 to the actuator 730, and on the basis of the received control signal 712, the actuator 730 may file an appropriate control signal 732 to the electric motor 740, powerful enough to bring the motor 740 on required operating parameter. The control unit 710 can continuously monitor the current value of the working parameter measured by the sensor 750, and is capable of respectively adjusting the control signal 712 supplied to the actuator 730, based on the difference between the desired value of the working parameter and the result of measurement of this parameter. In addition, the control unit 710 may also track and the feedback signal 734, received from the actuator 730.

In General, the control system 700 may adjust the current supplied to the motor 740 and / or any device that has the specified motor 740, for example, t is some of the discussed here previously in the above description of the device, as a mixer, a device for processing of food products and a device for planing ice. For example, the control system 700 may adjust the current applied to the mixer and / or a device for planing ice built into the mixer. The control system 700 may adjust the speed of rotation of the motor 740 and / or the speed of any device equipped with appropriate communication with the motor 400. The control system 700 may be performed in such a way as to provide for the regulation of modes of operation of the motor, similar to the one described earlier in this description, including brushless motors and 3-phase brushless motors.

Despite the fact that the device for food processing and magnetic actuators disclosed herein above description, the present invention presents a very concrete and discussed with reference to individual embodiments of the invention, given as examples, experts of ordinary skill in the art should understand that they can be made various changes concerning the form and the individual parts and not beyond the creatures, as well as the volume of disclosed inventions. These specialists ordinary skill is the art may be identified during an ordinary experimental work and offered many equivalents to those of the embodiments of the present invention, specifically considered here only for example. All these equivalents are included in the scope of the present invention defined in the attached claims.

1. A device for processing food products containing the drive shaft, a reservoir for receiving food products intended for processing, and the reservoir includes an element made with the possibility of rotation and having a connection to the drive shaft, the drive plate is made of namagnichivayushchego material, and the drive plate is connected to the drive shaft, providing the possibility of joint rotation, and a motor located in the immediate vicinity of the drive plate, and the specified motor includes a motor shaft, a rotor mounted rotatably on the shaft of the motor, the rotor has a magnet rotor, comprising the inner surface facing the shaft of the electric motor, the stator that generates an electromagnetic field which interacts with the magnet of the rotor, providing the rotation of the magnet rotor, and the stator includes an outer surface facing in the opposite direction relative to the motor shaft, while the inner surface of the magnet rotor at least partially about asana to the outer surface of the stator, and the drive magnet is connected with the magnet of the rotor to allow joint rotation while the drive magnet induces a magnetic field directed in the direction of the drive plate and for the transmission of torque from the motor to the drive plate with the purpose of processing a food product specified rotating element.

2. The device according to claim 1, which represents one of the following devices: mixer, mixer for food, a device for processing foodstuffs and the juicer.

3. The device according to claim 1, characterized in that said device is a mixer, this tank is a Cup of the mixer, and the rotating element is a knife.

4. The device according to claim 1, characterized in that the magnet of the rotor is a ring magnet.

5. The device according to claim 1, characterized in that the magnet of the rotor is made in the form of a set of magnets, and at least one of a specified set of magnets includes an inner surface facing the shaft of the motor.

6. The device according to claim 1, characterized in that the magnet of the rotor and the stator is essentially centered relative to the motor shaft.

7. The device p is 1, characterized in that it further comprises a sleeve made of plastic and mounted rotatably on the shaft of the motor, and specified the drive magnet and the magnet rotor connected with the sleeve.

8. The device according to claim 7, characterized in that the sleeve includes a top surface facing in the opposite direction relative to the stator, and the specified drive magnet attached to the upper surface of the sleeve, and the bottom surface facing the stator, and the specified magnet rotor mounted on this bottom surface of the sleeve.

9. The device according to claim 8, characterized in that the specified upper surface of the bushing is made a recess into which is inserted the drive magnet.

10. The device according to claim 8, characterized in that the specified lower surface of the bushing in the lower side wall that extends downward relative to the bottom surface of the bushing, and the specified magnet rotor mounted on this lower side wall.

11. The device according to claim 10, characterized in that the lower side wall includes an inner surface facing the shaft of the motor, and the specified magnet rotor mounted on this inner surface.

12. The drive for the driven element, and specified when the od contains the drive plate, the motor is located in the immediate vicinity of the drive plate, and the specified motor includes a shaft, a rotor mounted rotatably on the shaft, the rotor has a magnet rotor comprising an inner surface facing the shaft, a stator that generates an electromagnetic field which interacts with the magnet of the rotor, providing the rotation of the magnet rotor, and the stator includes an outer surface facing in the opposite direction relative to the shaft, with the inner surface of the magnet rotor at least partially facing the outer surface of the stator, and a drive magnet, magnetic associated with the drive plate and the magnet rotor for transmitting torque from the motor to the drive plate.

13. The drive section 12, characterized in that the magnet of the rotor is a ring magnet.

14. The drive section 12, characterized in that the magnet of the rotor is made in the form of a set of magnets, and at least one of a specified set of magnets includes an inner surface facing the shaft of the motor.

15. The drive section 12, characterized in that the magnet of the rotor and the stator is essentially centered relative to the shaft.

1. The drive section 12, characterized in that it further comprises a sleeve made of plastic and mounted rotatably on the shaft, and specified the drive magnet and the magnet rotor connected with the sleeve.

17. The actuator according to item 16, characterized in that the sleeve includes a top surface facing in the opposite direction relative to the stator, and the specified drive magnet is connected with the upper surface of the sleeve, and the bottom surface facing the stator, and the specified magnet rotor connected to this bottom surface of the sleeve.

18. Drive at 17, characterized in that the specified upper surface of the bushing is made a recess into which is inserted the drive magnet.

19. Drive at 17, characterized in that the specified lower surface of the bushing in the lower side wall that extends downward relative to the bottom surface of the bushing, and the specified magnet rotor mounted on this lower side wall.

20. The actuator according to claim 19, characterized in that the lower side wall includes an inner surface facing the shaft, wherein the specified magnet rotor mounted on this inner surface.

21. The drive for the driven element, and the selected drive contains the drive plate, electrode the motor, located in close proximity to the drive plate, and the specified motor includes a shaft, a rotor mounted rotatably on the shaft, the rotor has a magnet rotor comprising an inner surface facing the shaft, a stator that generates an electromagnetic field which interacts with the magnet of the rotor, providing the rotation of the magnet rotor, and the stator includes an outer surface facing in the opposite direction relative to the shaft, with the inner surface of the magnet rotor at least partially facing the outer surface of the stator, the drive magnet, magnetically connected with the drive plate and magnet rotor for transmitting torque from the motor to the drive plate, and a sleeve made of plastic and mounted rotatably on the shaft, and specified the drive magnet and the magnet rotor connected with the sleeve and arranged with its opposite sides.

22. The actuator according to item 21, characterized in that the magnet of the rotor is a ring magnet.

23. The actuator according to item 21, characterized in that the magnet of the rotor is made in the form of a set of magnets, and at least one of a specified set of magnets includes an internal surface of the , facing the motor shaft.

24. The actuator according to item 21, characterized in that the magnet of the rotor and the stator is essentially centered relative to the shaft.

25. The actuator according to item 21, characterized in that the sleeve includes a top surface facing in the opposite direction relative to the stator, and the specified drive magnet mounted on this upper surface of the bushing, and the lower surface facing the stator, and the specified magnet rotor mounted on this bottom surface of the sleeve.

26. The drive A.25, characterized in that the specified upper surface of the bushing is made a recess into which is inserted the drive magnet.

27. The drive A.25, characterized in that the specified lower surface of the bushing in the lower side wall that extends downward relative to the bottom surface of the bushing, and the specified magnet rotor mounted on this lower side wall.

28. The drive A.25, characterized in that the lower side wall includes an inner surface facing the shaft of the motor, and the specified magnet rotor mounted on this inner surface.



 

Same patents:

FIELD: items of personal use.

SUBSTANCE: invention refers to the bowl node for a mixer or blender with a bowl and bowl support that is installed on the bowl by means of the connection unit. Between the bowl and the bowl support there is a fixing device stipulated by which means the connection unit is fixed in the installed position.

EFFECT: increase of reliability and convenient use of a blender.

5 cl, 2 dwg

The invention relates to household appliances for baking

The invention relates to a device for processing food type food processor with a base that has at least two separate attachment, each for one tank, in which lay the processed product, with one driving element for each of the attachment points associated functionally with the motor, and with a locking device for containers in each node mounts

Mixer // 2043749
The invention relates to the trade mechanical engineering and can be used for mixing liquid products

FIELD: items of personal use.

SUBSTANCE: invention refers to the bowl node for a mixer or blender with a bowl and bowl support that is installed on the bowl by means of the connection unit. Between the bowl and the bowl support there is a fixing device stipulated by which means the connection unit is fixed in the installed position.

EFFECT: increase of reliability and convenient use of a blender.

5 cl, 2 dwg

FIELD: physics.

SUBSTANCE: device for treating food products consists of a driving shaft, a tank for food products, drive plate and an electric motor. The container consists of an element, made with provision for rotation and is linked to the driving shaft. The drive plate is made from magnetisable material and is linked to the driving shaft, providing for their combined rotation. The electric motor has a rotor, starter and a propulsion magnet. The rotor has a rotor magnet, which has an inner surface facing the motor shaft. The starter generates a magnetic field, which interacts with the rotor magnet. The starter has an outer surface, facing the opposite side of the motor shaft. Part of the inner surface of the rotor magnet faces the outer surface of the starter. The propulsion magnet is linked to the rotor magnet to provide for their combined rotation. The device has a bushing, made from plastic and mounted with possibility of rotating on the shaft of the electric motor. The propulsion magnet and the rotor magnet are joined by a bushing and are at its opposite sides.

EFFECT: reliable power transmission.

28 cl, 15 dwg

FIELD: personal use daily items, household appliances.

SUBSTANCE: invention relates to household appliances for pretreatment of food. The household appliance for pretreatment of food consists of a body frame. The body frame contains a base. A working vessel is fixed on the base. The body frame has a driving motor of rotating tool built in the bottom of the working vessel. The working vessel can be removed from the base and has a handle. The base has fasteners. The fasteners contact with the handle of the vessel to fix the working vessel on the base along the axis of rotation and displacement.

EFFECT: providing simple fixation of the vessel on the base.

13 cl, 3 dwg

FIELD: food industry.

SUBSTANCE: device for foam preparation from liquid based on milk or out of milk contains a tank into which whipped liquid is supplied and in which there is a rotatable stirrer, rack connected with the tank and stirrer driving gear system. Stirrer driving gear system and the stirrer contain magnetic elements ensuring rotation of the mixer under influence of magnetic field in the tank. There are means of creating agitations disturbing or preventing symmetrical circulation of the liquid around the central vertical axis of the tank.

EFFECT: invention simplifies method of foam preparation owing to restricting amount of operator's actions.

25 cl, 10 dwg

FIELD: personal use articles.

SUBSTANCE: invention relates to household appliances. The kitchen machine with a junction section for connection of the processing unit, a cover which is fixed to the body of the kitchen machine so that it, from the closed position in which it closes the junction section, has the ability to turn into an open position in which the junction section is available for connecting the processing unit. Also, the device includes a locking device designed to lock the cover in the closed position, with the releasing button, which by pressing has the ability to move from resting position into the position of disconnecting to release the lock, with the result that the cover has the ability to rotate to the open position. The releasing button is located on the cover, and the cover has a locking element, and the body has a lock pin made with an ability to interact with the locking element to lock the cover in the closed position. At that, the releasing button has an unlocking site which interacts with the locking element so that in the disconnecting position it disconnects the locking element and the lock pin.

EFFECT: invention enables to provide quick and convenient control of the device of releasing the cover.

8 cl, 5 dwg

FIELD: personal use articles.

SUBSTANCE: device (1) for cooking food such as baby food contains a vessel (3) for receipt of food to be cooked, a mixing unit containing a mixing element (10) for mixing the food and a heating device designed so that to enable the food heating. The first end (4) of the vessel (3) is designed so that to enable interaction with the heating device for the food heating. The mixing element (10) is positioned at the opposite second end (5) of the vessel (3) so that during usage the vessel (3) orientation relative to the device (1) may be adapted for switching between heating and mixing operations. The first end (4) of the vessel (3) contains the first connective element (6) to ensure fluid medium communication between the inner part (3a) of the vessel (3) and the heating device so that steam generated for the food heating can be supplied into the inner part (3a) of the vessel (3). Positioned at the first end (4) of the vessel (3) is a sump for collection of fluid medium during the heating operation. The fluid medium sump is positioned between the inner part (3a) of the vessel (3) and the first connective element (6).

EFFECT: ensuring the food product efficient preparation and mixing, simplicity and hygienic purity in usage.

10 cl, 7 dwg

FIELD: personal use articles.

SUBSTANCE: kneading device (101) for dough kneading includes a kneading tool (106), a drive unit (DU) for rotation of the kneading tool round the central axis, a vessel (104) to accommodate the kneading tool (106) and a base supporting the vessel (104). The kneading tool (106) contains a central body (107), a stirring blade (108) and at least one scraper (109) extending axially and radially. The distal end of the said scraper has a variable distance to the opposite inner side of the vessel. The said variable distance increases in the direction from the vessel bottom towards the upper part.

EFFECT: ensuring improvement of the kneading process and the kneading device cleaning ease.

9 cl, 20 dwg

Kitchen device // 2505262

FIELD: personal use articles.

SUBSTANCE: kitchen device is described, comprising a base having a supporting surface on its upper part, and a rotatable drive shaft comprising a first connecting part at its free end. The device comprises a removable container comprising a lower part which is supported by the support surface during operation, and a connecting element supported by the said lower part. The element comprises a second connecting part for connecting with the first connecting part. The first connecting part comprises a head with an outer surface with a number of first sloped parts. The second connecting part comprises a socket for receiving the head, the socket has an inner circumferential surface with a number of second sloped parts, the said first and second sloped parts comprise respectively the first and second sloped surfaces which are connected together in placement of the head into the socket.

EFFECT: ease and reliability of fastening is provided, and ease of cleaning of different parts comprised in the kitchen device.

15 cl, 9 dwg

FIELD: personal use articles.

SUBSTANCE: invention relates to the blender cover and its method of operation. The cover which is made with the ability to secure on the container comprises an upper wall, a side wall extending downwardly from the said upper wall, and one guide rib extending downwardly from the said upper wall and inwardly away from the said side wall. The method of minimising the swirling motion that occurs in the blender container having an open upper part, according to which the open upper part of the container is covered with the cover, thus placing one guide rib which is supported by the cover on the swirling motion trajectory.

EFFECT: reduction of swirling motion in the container.

15 cl, 3 dwg

FIELD: personal use articles.

SUBSTANCE: kitchen appliance (1) with a connective plate (5) for the treatment vessel (6); the connective plate (5) brim is equipped with connective (7) of the connective device intended for detachable connection of the vessel (6); envisaged within the inner area of the connective plate (5) surrounded by the brim is either a rod (12), projecting in the connection direction and capable of engagement with the slot (13) in the bottom part (10) of the vessel (6), or a slot (13) that the rod (12) projecting from the bottom part (10) of the vessel (6) in the connection direction may engaged with.

EFFECT: improvement of the kitchen appliance and of the treatment device enabling exclusion of the treatment vessel connection to the kitchen appliance while in an incorrect position with the solution implemented by a simple and low-cost method without impeding the user's actions.

14 cl, 6 dwg

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