Electromagnetic drive device

FIELD: electricity.

SUBSTANCE: electromagnetic drive device consists of movable along axis (3) armature (6, 6a, 6b) that has piston-shaped area (8, 8a, 8b), movable, in cylindrical part (2) of the stator (1). Note that, piston-shaped area (8, 8a, 8b) is penetrated by at least one groove (10) that is directed towards the axis (3). The groove (10) cuts through the edge of piston-shaped area (8, 8a, 8b) facing cylindrical part (2).

EFFECT: increase of response speed.

9 cl, 5 dwg

 

The invention relates to an electromagnetic drive device movable along the axis of the anchor, which has pornobrazil plot, which is movable in the cylindrical section of the stator.

Such an electromagnetic drive device is known, for example, from the utility model DE 29715900 U1. There is described electromagnetic drive unit, which is used to initiate the switching operation of the power switch. For this purpose, the electromagnetic drive device has a stator with an electrical winding, which retracts the anchor by passing current through the winding. The anchor contains pornobrazil plot, which is movable in the cylindrical section of the stator. To set the time of actuation of the armature is provided to vary the mass of the anchor.

With increasing mass of the armature of the electromagnetic drive device, the whole system becomes more inertial and this slows down the operation of the drive device.

The basis of the invention lies task to perform electromagnetic drive device of the above type in such a manner that a fast response time with accurate movement of the armature.

The task for the electromagnetic drive device of the above kind is solved according to the invention due to the fact that pornobrazil plot pron is Zan at least one passing in the direction of the axis of the notch.

Through the introduction of the recess is achieved that the cushion of fluid that appears when moving fast before pornobrazil plot can be extended through pornobrazil plot. Through the notch fluids like gases or liquids with high blood pressure can be routed through pornobrazil plot. At the same time going in the direction of the axis of the recess may have a variety of forms. So, for example, can be provided by linear channels or also used channels lying obliquely in pornobrazil area. In addition, can also be used to further form of execution as recesses in the form of spiral grooves in the form of a meander, etc. For all dredging is common that in the direction of the axis before and after pornobrazil section provides input or output apertures to quickly flowing stream of gas or liquid through pornobrazil plot. In particular, when moving pornobrazil plot in a confined space in the direction of motion before pornobrazil area education cushion of fluid is eliminated. To provide the best possible exact direction of the armature in the stator, the armature slides inside the cylindrical section of the stator. There is no need to provide special sealing between the stator and armature. Already small gap between then, the non-pictorial section and a cylindrical section are sufficient, to prevent passage of fluids through the gap between pornobrazil and a cylindrical section.

While the preferred form of execution may provide that the notch cuts facing the cylindrical section of the edge pornobrazil plot.

Posted by on the edge pornobrazil plot the recess may, for example, be a notch or groove, which purposefully forms a channel between pornobrazil section and a cylindrical section to allow the passage of gases or liquids during the movement of the armature. When this notch can have different types of profiling. So the groove may be performed, for example, in the form of a dovetail, delevoping, rectangular, V-shaped, or any other form.

Regardless of the position of the notches in the edge region or also surrounded pornobrazil area can be provided for the following measures. So while driving you aim to control the passage of fluid, can also be, for example, provided that the recess is equipped with a specific profile. So in the recess can be purposefully provided for areas with a higher resistance or a lower flow resistance. Further, due to certain ways of notches, for example spirally around pornobrazil site, you can purposefully vozdeistvovat is on the last volume of fluid during movement of the armature. So, for example, can be achieved that during the movement of the first whole formed by the recess of the bypass channel transmits a large amount of fluid in the progressive movement in the recess of the wave occurs backflow, which limits further consistent flow of the fluid. Thus, for example, to support a certain profile of the movement of the armature.

The preferred image can be provided that the recess is a slot oriented in a generally radially relative to the axis.

Oriented in a generally radially relative to the axis of the crack along with his guidance and control of the fluid flow is preferably suitable to avoid eddy currents in the armature when current flows in the stator. In the electromagnetic drive device due to the emerging magnetic fields are generated forces between the armature and stator. In the normal case the stationary stator includes for this purpose an electrical winding, which can be loaded shock. Due to the current within the winding, the magnetic field. Anchor, made for example, of a ferromagnetic material, is set in motion under the action of magnetic fields. In moving in the magnetic field of the armature induced eddy currents. These eddy currents etc which lead to heating of the armature and cause a decrease in the electromagnetic force, acting on the anchor. The introduction of the at least one slit, oriented radially relative to the axis, the potential path of the eddy currents are interrupted. It may be provided that in the radial direction relative to the axis of the anchor posted a few cracks. Slots can be of different forms. They can be, for example, surrounded by the anchor or to extend over the edge of the armature in the direction of the axis. This can be achieved, for example, due through propilivanija or milling the outer region of the anchor.

The following is the preferred form of execution can provide that to pornobrazil site adjoins a conical reformowana part.

Cone, reformowana to pornobrazil site the best part allows passage of magnetic field lines inside the anchor. A simple way coming out of the stator in the anchor lines of the magnetic field can be directed so that the boundary surfaces of the lines of the magnetic field protrude from the surface or, respectively, included in the surface, if possible, vertical. This is preferred because, for the creation of the force on the anchor are only effective normal components of the magnetic field lines. Pornobrazil area may, for example, be located at the bottom of the cone.

Further preferred is a form of execution may include, what to pornobrazil the site abuts a stepped reformowana part on the type of the stack of disks.

Step execution reformovanii part also has the best characteristics for guidance magnetic field lines. So can purposefully run the surface of the poles, in which stress concentration is directed lines of the magnetic field. In the case of rectangular steps they may, for example, annular surface, which are arranged coaxially relative to the axis. The surface in the form of side surfaces of the stepped cylinder reformovanii parts, which are also held coaxially around the axis, essentially free from penetrating their lines of magnetic field.

In addition to the rectangular form of execution steps can be used also stepped sawtooth arrangement or other suitable profiling reformovanii part.

As stepped and tapered reformowanie parts may be made integral with pornobrazil plot. However, it is also possible to perform very priparkovannogo part, as well as the anchor of several parts.

Due to the conical reformovanii part or step reformovanii parts hereinafter created favorable conditions of flow, to quickly move the anchor through the fluid and to direct vitezne the initial volume of gas or liquid past the piston or through the piston.

Next, tapering reformowanie parts are appropriate to ensure the centering of the armature when current passes through the stator. Through such priparkovannogo part of the electromagnetic driving device can generate large forces hold.

The preferred image can be provided that reformowana part is made hollow.

Due to the hollow reformovanii part, first, it reduces the mass to be moving armature. Due to the low inertia of moving parts and provides a fast response time of the armature. In addition, through the walls of the hollow body can be caused by a targeted mouse lines of the magnetic field.

To perform the wall may be, for example, is preferably provided that the hollow reformowana part in the axis direction is decreasing perimeter and becoming less than the perimeter of the reduced wall thickness of the hollow reformovanii part.

The reduction of the walls of the hollow reformovanii part in the direction of the narrow peaks reformovanii part allows you to get the best distribution of passing inside the anchor lines of the magnetic field. Created inside the electric winding lines of the magnetic field can pass through the respective pole pieces on the stator to a great extent on pornobrazil area. If this is a preference for the equipment, if pornobrazil plot is cylindrical or in the form of a hollow cylinder and, if possible, close to the cylindrical section of the stator. So it is possible to transition from the low-loss lines of the magnetic field from the stator to the anchor or Vice versa. With decreasing wall thickness of the hollow reformovanii part of the magnetic resistance of the wall increases. Due to this, the lines of the magnetic field is distributed over a large area on the outer side surface (the surface of the entrance or exit) reformovanii part. This achieves a uniform magnetization of the armature. With a uniform flux density of the magnetic field from the electromagnetic drive device can be given correspondingly high power. Further also provided with high strength retention of at least one of the end positions of the movable anchor.

The preferred form of execution may, for example, provide that the anchor as the end stop is made standing mainly perpendicularly relative to the axis of the plane.

Vertically standing lugs allow you to use as stop surfaces relatively small areas. Necessary for the creation and direction of the magnetic field lines of the external lateral surface of the can purposefully kept at a distance from Ogre is uchitelnic surfaces of the stator. Due to this corruption occurs with high quality surfaces of the input and output lines of the magnetic field. Suitable as end stop surfaces are, for example, a circular or annular surface. The inclined surface of the armature or stator are not in contact. Thereby the risk of mechanical welding of these surfaces is practically eliminated. Can be provided by several of the bounding surfaces, which act together as an end stop. They can also be given according to the different end positions.

The preferred form of execution may provide that the cone reformowana part has a top in the shape of a truncated cone, which acts as an end stop.

The top in the shape of a truncated cone tapered reformovanii part allows the input forces the stop in the cone priparkovannogo part and in the whole anchor. Flattening or deformation can thus be prevented.

The preferred form of execution may provide that the side surface reformovanii part in the end positions of the armature has a clearance from the bounding surfaces of the stator.

The lateral surface of reformovanii part, i.e. the cone is th side surface or a stepped side surface, should be kept at a distance from the bounding surfaces of the stator to prevent damage to sensitive surfaces. So, for example, with a cone-performing reformovanii part may be provided that only having the shape of a truncated cone, the top comes into contact with the bounding surface of the stator and a conical side surface lies at a distance relative to the bounding surfaces of the stator. Distances should be so small that the protruding lines of the magnetic field in their passing was subjected to disturbing influences only in small degree. At step execution reformovanii part may be provided that is in contact with the bounding surface of the stator come only certain parts of the surface, while other parts of the surface are dissociated from the bounding surface of the stator. When a rectangular stepped rotationally symmetric performing reformovanii part to the bounding surfaces of the stator can be positioned, for example, circular disks, which are coaxial to the axis. Through these surfaces, the contact lines of the magnetic field may be sent with a small resistance. In contrast, the cylindrical side surface that lies is coaxial to the axis, must be distantsirovaniya relative to the bounding surfaces of the stator to purposefully inducing lines of the magnetic field in the adjacent surface.

In the following examples of carrying out the invention is schematically shown in the figures, and then described in more detail.

When this show:

Figure 1 a first embodiment of the electromagnetic drive device in its rest position.

Figure 2 the first embodiment of the electromagnetic drive device in its "on"position.

Figure 3 is a perspective view with partial cut-outs shown in Figures 1 and 2 anchors.

Figure 4 a second embodiment of the electromagnetic drive device with stepped reformovanii part on the type of a stack of disks on pornobrazil area of the anchor.

Figure 5 is a third embodiment of the electromagnetic drive device with an alternative implementation of step reformovanii part on the type of a stack of disks on pornobrazil area of the anchor.

As a first example based on Figure 1 explains the basic design corresponding to the invention of the electromagnetic drive device. Shown in Figures 4 and 5 embodiments of the constructed essentially the same type have, however, differences regarding the sustained fashion run anchor.

The first embodiment of the electromagnetic drive device includes a stator 1. The stator 1 is composed of the first part 1A and the second part 1b. The first part 1A comprises a cylindrical section 2. The cylindrical section 2 has a circular cross-sectional shape. The cylindrical section 2 is coaxial with respect to axis 3. The second part 1b of the stator 1 includes lying coaxially with respect to axis 3 channel 4 with a circular cross-sectional shape. The first part 1A and the second part 1b of the stator are connected to each other, thus creating a compact, guide lines of the magnetic field of the body. In the stator 1 is made in the joint area between the first portion 1A and the second part 1b of the annular gap invested streamlined current winding iron core 5. Winding iron core 5 is coaxial with respect to axis 3.

In the cylindrical section 2 of the stator 1 is sent pornobrazil section 8 with a circular cross section of the armature 6. Anchor 6 contains the drive rod 7, which is coaxial with respect to axis 3 and is sent to channel 4. To pornobrazil section 8 of the armature 6 is adjoined by a conical reformowana part 9. Pornobrazil section 8 and conical reformowana part 9 made in the form of a solid phone But may be provided to apply for pornobrazil section 8 and CONSOB aznoe reformovanii part 9 of the individual components of the body. Conical reformowana part 9, and pornobrazil section 8 is made in the form of hollow phone As you can see in the cross section of Figure 1, the wall thickness selected so that with decreasing perimeter of the conical reformovanii part 9, the wall thickness decreases. To avoid eddy currents and to create the possibility of passing gas in the anchor 6 is introduced radially oriented through with crack-like notches 10. Through with crack-like notches 10 may be placed so deep that they come in a cone-shaped priparkovannogo part 9. The notches 10 are thus radially with respect to axis 3 and the cut edge pornobrazil section 8.

Recourse to the drive rod 7 side conical reformowana part 9 has splashiest in the form of a truncated cone. Due to this formed the annular surface 11, which passes around the drive rod 7. The annular surface 11 serves as an end stop for the armature 6. On facing away from the drive rod 7 side of the armature 6 in the bottom pornobrazil section 8 is formed by the annular surface 12. The annular surface 12 also acts as an end stop. In the rest position of the ring surface 12 at the bottom of the armature 6 is pressed relatively closing the cylindrical section 2 of the plate 16. Shown in Figure 1 resting position of the first Varian is and perform electromagnetic drive device anchor 6 extending inside the channel 4 around the drive rod 7 spiral spring 13 is held at a distance from the second part 1b of the stator 1. Through the annular surface 12 facing away from the drive rod 7 the end of the armature 6, the anchor 6 is held in its end position. When the current in the winding iron core 5, the magnetic field, which passes in the first part 1A and the second part 1b of the stator 1 and is routed inside the stator 1. Lines of the magnetic field of the cylindrical section 2 out of the first part 1A and is fixed in the wall of the hollow armature 6 is preferably in the field pornobrazil section 8. Due to the decreasing wall thickness toward the top of the armature 6 of the field lines are distributed evenly on the cone side surface tapered reformovanii part 9. The commitment closed on its own field lines to the reduction of the field lines emerge from the surface of the armature 6 and enter the second part 1b of the stator 1. Due now power influences the armature 6 moves in the direction of the second part 1b. In the "on" state (Figure 2) of the first variant of execution of the electromagnetic drive device in the form of the example shows a few lines of the magnetic field. Lines of the magnetic field extend vertically from the boundary surfaces of ferromagnetic material. On Figure 2 you can see that the lines of magnetic field on the boundary surfaces in the field pornobrazil section 8, and also in the area of the boundary surfaces Boko is the second conical surface reformovanii part 9 pass through the boundary layer is almost perpendicular. Due to this, most of the field lines in these boundary layers becomes normal components and creates a high strength retention. Holding force acts against the tense in the "enabled" status of the spring 13. Upon termination of current flow, the spring 13 causes the drive rod 7 together with the anchor 6 is again shown in the Figure 1 position.

When the movement of the armature 6 through the drive rod 7 can be made to work. For example, the locking latch actuator electrical switching apparatus, such as high-voltage power switch, can be set in motion and also to cause the process of commutation.

Presented on the Figure 2 in the "on" position the first embodiment, the electromagnetic drive device of the annular surface 11, which passes around the drive rod 7, is attached to the second part 1b. Counter same is made the surface to the conical reformovanii part 9 on the second part 1b of the stator 1 thus formed so that it lies approximately parallel to the lateral surface of the conical reformovanii part 9, however, between these two surfaces do not have direct contact. Thus avoiding damage to the surface of a conical reformovanii part 9.

Figure 3 shows promising implementation I have orya 6 when the refusal to provide the drive rod 7. You can see pornobrazil section 8, the annular surface 11, which surrounds the drive rod 7, as well as several slit-like grooves 10, radially penetrating pornobrazil section 8.

An alternative to the execution shown in Figure 3 anchors can also be used for other anchors. The Figures 4 and 5 shows the principal ways of execution. The Figure 4 shows a second variant of the electromagnetic drive device. The electromagnetic drive unit is shown in its resting position.

It has the same fundamental design, but also the same principle, as shown in Figures 1 and 2 the first embodiment of the electromagnetic drive device. In connection with Figure 4, we should consider the different runs of the armature 6A. Anchor 6A contains at its pornobrazil section 8A speed priparkovannogo part 9a on the type of the stack of disks. Due to speed run the perimeter reformovanii part 9a in the direction of the drive rod 7 is reduced more and more. Also stepped reformowana part has a rotationally symmetric shape, and the rotation axis corresponds to the axis 3. Anchor 6A also made hollow, and the bounding hollow surface further has a tapered shape. Thus, provided that the wall thickness in the managing of the drive rod 7 anchors 6A is reduced and thus there is a uniform distribution of magnetic field lines on the surface of the stepped reformovanii part 9a. In stepped form executed counter same bounding surface on the second part 1b of the stator 1.

Figure 5 shows the third embodiment of the electromagnetic drive device in its "on"position. The third embodiment of the electromagnetic drive device includes an anchor 6b with pornobrazil plot 8b, adjacent stepped reformowana part 9a on the type of the stack of disks. Also the anchor 6b of the third variant of execution of the electromagnetic drive device is made hollow, and converted to a hollow space of the surface speed reformovanii part is carried out stepwise. Also this way there is a guarantee of reducing the wall thickness of the hollow reformovanii part in the direction of the drive rod 7.

Shown in Figures 4 and 5 versions of the electromagnetic drive device respectively having the form of a round disk surface 14 of the armature 6A, 6b serve as limit stops. Having the form of a lateral surface of the cylinder surface 15 are respectively distantsirovaniya relative to the counter same bounding surfaces of the stator 1. In these areas, also in the "on" position purposefully made air gaps, which are in the form of a hollow cylinder around the axis 3. Due educated so clicks the zoom ratio relative to the magnetic resistances of the magnetic field line is being forced through the annular surface 14 of reformovanii part 9a, 9b in the second part 1b of the stator 1. Thus is ensured that also here the lines of the magnetic field always pass vertically from the stator 1 in the anchor 6A, 6b, and Vice versa. This creates large forces of restraint or force.

1. The electromagnetic drive unit movable along an axis (3) anchor (6, 6A, 6b), which has pornobrazil plot (8, 8A, 8b), which is movable in the cylindrical section (2) of the stator (1)with pornobrazil plot (8, 8A, 8b) pierced by at least one passing in the direction of the axis (3) of the recess (10) characterized in that the recess (10), cuts facing the cylindrical section (2) edge pornobrazil plot (8, 8A 8b).

2. An electromagnetic drive unit according to claim 1, characterized in that the recess (10) is slit oriented in a generally radial to the axis (3).

3. An electromagnetic drive unit according to claim 1, characterized in that
to pornobrazil section (8) adjoins the conical reformowana part (9).

4. An electromagnetic drive unit according to claim 1, characterized in that
to pornobrazil section (8A, 8b) is adjacent stepped reformowana part (9a, 9b) according to the type of the stack of disks.

5. An electromagnetic drive unit according to any one of p or 4, characterized in that
reformowana part (9, 9a, 9b) is made hollow,
step reformowana part (9a, 9b) - the type of the stack of disks.

6. An electromagnetic drive unit according to claim 5, characterized in that the hollow reformowana part (9, 9a, 9b) is in the axial direction of decreasing the perimeter, and with decreasing perimeter of the reduced wall thickness of the hollow reformovanii part (9, 9a, 9b).

7. An electromagnetic drive unit according to claim 1,
characterized in that
standing at anchor (6, 6A, 6b), mainly perpendicular to the axis (3), the surface (11, 12, 14) made in the form of end stop.

8. An electromagnetic drive unit according to claim 3,
characterized in that
conical reformowana part (9) has a top (11) in the form of an end stop.

9. An electromagnetic drive unit according to any one of claims 4 to 7, characterized in that
the lateral surface (15) reformovanii part (9, 9a, 9b) in the end positions of the armature (6, 6A, 6b) has a clearance from the bounding surfaces of the stator (1).



 

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4 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed motor incorporates cylindrical stator 1 accommodating coil 2 and armature 3 representing cylinder 4 with disk section 5. Guide case 6 made from ferromagnetic material adjoins the stator, case cross section being smaller than that of stator. Said motor comprises also guide case cover 7, plain bearings 8 and 9, return spring 10 and damping washer 11. Guide case top part adjoining cover 7 has inner circular ledge that fairs with armature disk section side surface by its diametre. Said inner circular ledge is connected via technological gap A with said armature disk section side surface to allow magnetic flux passage and armature retention at initial stage of its travel.

EFFECT: higher stabilisation of impact power.

1 dwg

FIELD: electricity.

SUBSTANCE: electromagnetic drive device consists of movable along axis (3) armature (6, 6a, 6b) that has piston-shaped area (8, 8a, 8b), movable, in cylindrical part (2) of the stator (1). Note that, piston-shaped area (8, 8a, 8b) is penetrated by at least one groove (10) that is directed towards the axis (3). The groove (10) cuts through the edge of piston-shaped area (8, 8a, 8b) facing cylindrical part (2).

EFFECT: increase of response speed.

9 cl, 5 dwg

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