Hairdryer, hairdryer jet piece and hairdryer equipped with such jet piece. RU patent 2506024.

FIELD: personal usage articles.

SUBSTANCE: invention relates to hairdryers and to a hairdryer jet piece. The aim of the invention consists in creation of a hairdryer, of a hairdryer jet piece and a hairdryer equipped with such jet piece that ensures improved hair drying characteristics with simultaneous maintenance of outlet air temperature within the safe range. The hairdryer contains a body having a central axis. The body has an outlet hole for passage of the air stream through it and a means for directing the flow. The flow directing means contains a static flow directing surface intended for directing the air stream; the said flow directing surface is at least partially slanted relative to the body central axis.

EFFECT: creation of a hairdryer, of a hairdryer jet piece and a hairdryer equipped with such jet piece that ensures improved hair drying characteristics with simultaneous maintenance of outlet air temperature within the safe range.

13 cl, 4 dwg

THE TECHNICAL FIELD TO WHICH THE INVENTION RELATES

The present invention relates to the phens and to the attachment for a hair-dryer.

There are countless different approaches to creating fen, intended for use by consumers. The major consideration for such fans is that they should create a flow of heated air in sufficient quantities for the evaporation of water from the hair user.

This objective is usually achieved through the use of a blower or fan which directs the air above a heating device, such as a coil resistance, and then to the final element. The famous hair dryers were used as axial and centrifugal fans.

Hairdryers, particularly hand-held Hairdryers, widely used for many years and have found wide acceptance in the market of consumer goods. As the market became Mature, commercial success led to the need in the increased ability to perform the main tasks of the hair dryer, a hair drying, while creating a device that is quiet, safe and convenient to use.

One approach that provides the ability to drying, which obviously will result, is just strengthening of air heating, displaced from the device. The disadvantage of this approach is to increase the probability of burns user.

In U.S. patent 5841943 proposed a solution in which disclosed insert for the creation of a pulsating flow, designed for use together with an electric Hairdryer. Nozzle for the creation of a pulsating flow can be attached to tubular end of a hair dryer. Insert contains asymmetric and uneven, the rotating impeller made with the possibility of rotation as one fan blade, which covers part of the square of the output section. The displaced air ensures the rotation of the impeller blades of the fan, this creates a pulsating spiral flow, in which the zone with heated air moves in a spiral around the Central axis of the hair dryer. Indeed, if you look at a cross section of the air stream, which is displaced from a hair dryer, you can see the «zone» hot air that performs a circular motion around a Central axis. This means that the air stream will also come in hair user with such a circular motion, which means that the hair user will receive streaked jets of hot air instead of a constant flow. Although this provides a possibility to use high temperatures to air flow, there still is a risk of burns, when a user inadvertently moves Hairdryer in response to the fluctuation caused by unbalanced rotating paddle fan. In addition, due to the fact that a spinning fan blade causes the interruption of a jet of hot air, the effectiveness of high air temperature provided by the well-known Hairdryer, at least partially reduced. In addition, laws in many countries prohibit the use of more high temperatures for security reasons users.

In U.S. patent 5839204 disclosed portable Hairdryer, having a body and discharge element housing adjustable vent hole intended for all air stream generated in the body, in a certain direction.

In U.S. patent 5956863 disclosed Hairdryer, where heated air is directed along the item with conical configuration for the passage of the flow so that the air converges to a common point.

The European patent 1188392 disclosed Hairdryer, in which the nozzles can be fixed with different configurations to find the straight, converging or diverging configuration, the air flow.

In U.S. patent 6038782 disclosed Hairdryer, that can be used in open mode, in which the air flow is directed through a cylindrical bore hole, and in full deviations in which the air flow is fully directed turns down element.

THE TASK OF THE INVENTION

The present invention is a hair-dryer, insert for a hair-dryer and a hair-dryer with this nozzle, which provides improved performance drying hair while maintaining the temperature of the outlet air in a safe range and which is safe and convenient in use.

BRIEF SUMMARY OF THE INVENTION

In accordance with the first aspect of the invention created nozzle for a hair-dryer, when this attachment contains a linking tool, made with the possibility of acceding to the outlet of the specified benchmarks release of the air stream, and the flow direction, having fixed surface flow, which is intended to guide the air flow and at least partially tilted relative to the Central axis of the nozzle. An inclined surface flow gives the air mainly directed at a tangent velocity component in addition to the component of the velocity, which has the same direction as the Central axis of the nozzle, that is, the main direction of flow of air stream. Due to the tangential component of the turbulence of the air stream, coming out of the dryer through a nozzle, will increase, and the air stream will be impact. This blending action, in turn, has the effect that the temperature of the air stream, produced a Hairdryer, will improve, and the cross-section of the air stream will have only a relatively minor temperature gradient, with the lowest temperature can be defined on the boundary surface of the air leaving the hair dryer, and the ambient air.

Because the air jet is not interrupted, creates an array with essentially uniform distribution of temperatures and with distribution with a nearly constant temperature of the cross-section that provides the good regulation of the maximum temperature of the air stream and ensures that there are no so-called “hot spots”that are often found in conventional hair dryers.

Another advantage of uniform distribution of temperature in the air jet is that due to the lack of «hot spots» of the same quantity of heat can be transferred to the decreased flow of air. This will not only reduce energy consumption hair dryer, but also, in particular, the reduction of noise generated Hairdryer. In the alternative scenario can be created more powerful Hairdryer, where a greater amount of heat will be transferred to a stream of air, that is, the airflow will be maintained in the same, but the heater will transmit a greater amount of heat.

In one embodiment, a tool to direct the flow contains a number of blades for the direction of the flow, which take place in the radial direction inside internally within the periphery of the district heads. The use of blades, provides the possibility of manufacturing of the air stream from a hair dryer to the extent possible, without limitation, only through deviations of air stream.

In practically feasible embodiment, a tool to direct the flow includes blades for the direction of the flow, which take place in the radial direction inside within the interior district periphery of the connection tool. The use of blades, provides the possibility of manufacturing of the air stream from a hair dryer to the extent possible, without limitation, only through deviations of air stream. The presence of the blades to the direction of flow, passing within the interior district periphery of the connection tool, provides a reduction in the overall size of the nozzle, which is more convenient in use and which will be easier to store.

In one embodiment, a blade for the direction of the flow tightened, in particular twisted in a spiral around their respective longitudinal axis. Thus, it can be easier to adjust the degree of deviation or the value of the tangential velocity component attached to the air jet is displaced from a hair dryer.

In one embodiment, a blade for the direction of the flow twisted along their respective longitudinal axis so that part of the surface flow essentially parallel to the Central axis of a nozzle and a part of the surface flow essentially perpendicular to the Central axis of the nozzle. This will ensure that part of the air stream will still be controlling velocity component, which has the same direction as the Central axis of the nozzle, and, therefore, the direction in which the aims Hairdryer, that, in turn, ensures the maintenance of a good overall speed of the air stream. Through the implementation of part of the surface flow so that it would be essentially perpendicular to the Central axis of the nozzle, part of the air jet will be a strong tangential component, which provides preferred mixing effect.

In one embodiment, the surface flow essentially perpendicular to the Central axis of the nozzle vicinity of the distal end of the blades to the direction of flow. In the alternative to surface flow essentially parallel to the Central axis of the nozzle, close to the Central axis. Believe that both alternatives give good results in terms of mixing.

In accordance with the third aspect of the invention Hairdryer contains a body, having a Central axis, while the body contains an outlet for the passage of air flow through him and for the direction of the flow. Tool to direct the flow contains the static surface flow, intended for the direction of the air stream, thus, the surface flow, at least partially, tilted relative to the Central axis of the body. You can see that and the flow direction corresponding to the third aspect of the invention, implements the same idea of the invention, as the flow of all the variants of implementation of the nozzle, like the one described, and therefore has the same advantages. They are not repeated here to avoid unnecessary repetition.

BRIEF DESCRIPTION OF DRAWINGS

For more preferred options for nozzles in accordance with the invention, and a hair-dryer, containing such a nozzle are described in the claims and the description with reference to the drawings, in which:

figure 1 - view a hair-dryer with schematically illustrated profiles of temperature conventional dryer and a hair-dryer with insert in accordance with the invention;

figure 2 - schematic view of vent the dryer with insert in accordance with the invention;

fig.3 - vertical projection nozzles in accordance with the invention;

fig.3 - perspective view the attachment on the fig.3; and

figure 4 - the temperature distribution in the cross section a-A of figure 1.

A DETAILED DESCRIPTION OF EXAMPLES

Figure 1 shows the vertical side view hair dryer 1, which contains the case 2, having inlet 3 for the entrance of air into the chassis 2. Hairdryer additionally contains outlet 4 through which air can be released from a hair dryer 1. Case 2 additionally contain the handle 5, which includes several switches 6. The switches 6 are used to control Hairdryer 1, and may include, for example, the switch «on / off»switch speeds and switch to regulate the temperature. Inside the shell 2 added a drive motor that drives the fan or blower, which accelerates the passage of air, which was the case 2 through the inlet 3, towards the outlet 4 and through the heater (), which heats the air if required. In the example on figure 1, the drive motor is an electric motor powered by use of electric power supply, but also Hairdryer available with a power supply from the battery.

In addition, figure 1 shows schematically the by arrows 10 how hot the air jet is discharged from the outlet 4 a hair-dryer 1. The air stream has essentially conic section, shown chain-dotted limit lines 11. Cross-section of the air flow, increases in the longitudinal direction or the Central axis of X of the housing 2 shown dash-dotted line, due to the interaction with the surrounding air, which is causing the slowdown of the air stream and the involvement of the ambient air in the air flow. Shows a cross section a-A of the air jet at a certain distance from the outlet 4 a hair-dryer 1. To the left of the cross section A-A in figure 1 shows two profiles of temperature, respectively profile I temperatures and profile II temperatures, which shows the temperature distribution in the cross section a-A in two different situations. Profile II temperatures will be discussed later in more detail, together with the consideration of figure 2-4.

Profile I temperatures is a typical temperature profile obtained for a conventional dryer. Similar Hairdryer exhaust contains an element which can be fully opened towards the environment, but often made with the bars to prevent easy access to work items in the dryer on the outside. Along the Central axis shows the temperature T of the air jet cross section a-A (temperature is shown not in scale, refer to figure 4 shows an example showing the temperature). If you just look at the profile I temperatures, you can see that the profile I is a very clear-cut profile, which shows the amount of Max1 global maximum, the value of Min2 local minimum, located on the Central axis of X, and the minimum value Min1, which can be found at the boundary line 11 cone. In practice, this means that the user is using a conventional Hairdryer, will feel the so-called «hot spots» in the air stream, which is displaced from a hair dryer.

Another problem associated with the usual Hairdryer, is the amount of heat that can be transferred to the air jet is limited to the emergence of the «hot spots». In addition to the previously mentioned problems related materials characterizing the closest prior art and able to discredit the novelty of the invention, additional problem of «hot spots» in more traditional hair dryers can be solved by the present invention, as the authors of the invention realized that by mixing air jet at its displacement from a hair dryer mixing, which will take place, will ensure the alignment of the distribution of temperature and, consequently, reduction or even the elimination of the occurrence of «hot spots».

This is shown through the profile II temperatures, you can see that you get a more even temperature profile. This will be explained in more detail with reference to figure 2-4.

Figure 2 shows a cross-section of the outlet 4 a hair-dryer 1 of figure 1. As shown by arrows 12, the air stream passes through the case 2. Vent 4 is connected nozzle 20, which contains a linking tool 21, hereinafter referred to as the connective frame 21, which is done with flange 22 ledge and 23, which is adjacent to the inner surface of 24 outlet 4. Ledge 23 can be made with annular groove 25. In addition, the nozzle provides a tool for the flow direction indicated by the General reference position 30. Tool 30 flow contains a number of blades 31 for the direction of the flow, which extend radially inward within the interior district periphery of connective framework 21. In particular, the blades 31 for the direction of flow can be considered as passing in the radial direction inside of the inner surface of the case 2. In the example of figure 2 connecting frame 21 has a round cross section. However, there might also be other cross-sections that are dependent on the specific design of the outlet 4 a hair-dryer 1.

Blades 31 flow motionlessly fixed in the connection frame 31, which, in turn, still attached to the outlet of 4, and have a static surface 32 flow intended for the direction of the air stream. Surface 32 flow, at least partially, tilted relative to the Central axis In the connective framework 21. As you can see in figure 2, the air stream, shown by the arrows 12, passes through the nozzle 20 under the influence of fan, and air jet reported tangential component of velocity in addition to the longitudinal or core speed, as shown by arrows 13 and 13'13 arrows depicted by the solid lines indicate the direction of flow in the upper half of the nozzle, and arrows 13', depicted by dashed lines indicate the direction of flow in the lower half of the nozzle. It will be clear that in this way the rotational movement reported air jet, which is displaced from a hair dryer 1.

Vertical front view nozzle 20, shown separately is presented the fig.3, the arrow 14 also shows how rotates the air stream, displaced from a hair dryer.

As shown in fig.3, blades 31 flow preferably spirally twisted along their respective longitudinal axis of h, which is shown in fig.3 only one blade 31A flow, so that part of the surface 32 33 flow essentially parallel to the Central axis In the connective framework 21 and 34 part of the surface of 32 flow essentially perpendicular to the centerline of the connective framework 21. In particular, the surface 32 flow essentially perpendicular to the centerline of the connective framework 21 next to the frame 21 or, in other words, next to the distal end of the blades 31 for the direction of the flow. This is more clearly shown in fig.3. The effect of this will be that the area, which identified «hot spots», that is, the maximum temperature Max1, will be at greater impact.

Equalizing impact nozzle 20 and the tangential component of velocity, which is added to the stream of heated air displaced from a hair dryer can be studied in more detail of the figure 4.

Figure 4 shows the temperature distribution in the cross section A-A in figure 1, the upper diagram shows the temperature distribution, which corresponds to the profile I temperatures, and the lower diagram shows the temperature distribution, which corresponds to the profile II heat fitted with a nozzle in accordance with the present invention. As you can clearly see in the situation with installed a nozzle according to the invention temperature air flow varies between 50 and 70 degrees of Celsius, while Hairdryer without insert has a temperature profile with temperatures in the range from 30 to 100ºc, in both cases, the amount of heat transmitted heater hair-dryer, remained the same.

In the above examples, the blade 31 flow shows evenly distributed, and they all have the same or at least similar structure. However, this invention is not restricted to this. In particular, the possibility exists that the blades 31 flow will be distributed unevenly, which can raise the degree of air turbulence, which is forced out through the outlet 4 a hair-dryer 1. In addition, there is also the possibility that the design of the blades 31 flow will vary from individual blades for the direction of the flow. This can also increase the turbulence of the air, which is forced out through the outlet 4 a hair-dryer 1.

Above the present invention has been described through the nozzle for a hair-dryer, when this nozzle provides a tool for the direction of the flow, which embodies the different aspects of the present invention.

However, the present invention is not limited example of the nozzle, but equally applicable to a hair-dryer, containing a body, and the body contains the flow, which implements the same idea of the invention, as the flow of all the variants of its realization, which is a part of the nozzle, like the one described, and therefore has the same advantages. This variant of the implementation of the present invention is not shown addition to the drawings in order to avoid unnecessary repetition, but a specialist in the art it will be understood as making the case with the flow in accordance with the invention, for example, by casting under pressure if the housing is made of plastic.

In addition, it should be noted that the nozzle does not have to be performed with connecting frame. There is also the possibility that the blade to the direction of flow can be attached in any way to the inner surface of the body, for example through circumferential grooves, which hosts the distal end (part of the distal end) blades for the direction of the flow.

Despite the fact that were shown and described the preferred embodiments of the invention to be understood, that can be made with various modifications and changes, other than those that were specifically mentioned above, without departing from the volume of the invention.

1. Nozzle (20) for the hair dryer (1), intended for the release of the air flow, and containing - " o " means (21), made with the possibility of connection on the outlet (4) the specified hair dryer (1), and a tool (30) to direct the flow of having a static surface (32) for the flow direction, intended for the direction of the air stream, the indicated surface (32) for the flow direction, at least partially, tilted relative to the Central axis (In) nozzle (20), hatchback static surface (32) for the flow direction is made with the possibility of giving the air stream, essentially aimed on the tangent component of the speed in addition to the component of the velocity, which has the same direction as the Central axis (In) nozzle (20), for the message of the rotational motion of the air stream, which comes from a hair dryer.

2. Nozzle (20) according to claim 1, which means (30) flow includes blades (31) for the direction of the flow, which take place in the radial direction inside internally within the periphery of the district heads (20).

3. Nozzle (20) in paragraph 2, in which the blades (31) to direct the flow of twisted, in particular twisted in a spiral around their respective longitudinal axis (h).

4. Nozzle (20) on item 3, in which the blades (31) to direct the flow of twisted along their respective longitudinal axis so that part of the surface (32) flow essentially parallel to the Central axis (In) nozzle (20), a part of the surface (32) flow essentially perpendicular to the Central axis (In) nozzle (20).

5. Nozzle (20) according to claim 4, in which the surface (32) flow essentially perpendicular to the Central axis (In) nozzle (20) near the distal end of the blades (31) for the direction of the flow.

6. Nozzle (20) according to claim 4, in which the surface (32) flow essentially parallel to the Central axis (In) connection tool (21) near the Central axis (In).

7. Hair dryer (1), containing the housing (2) with an inlet (3) and outlet (4) for the passage of air flow through it, while the housing (2) holds fan, made with the possibility of actuation by means of a drive motor to ensure the passage of air flow through the housing (2), and heater for heating the specified air flow, and joined with the outlet (4) the nozzle (20) for any of the preceding paragraphs.

8. Hair dryer (1), containing the enclosure 2)with the Central axis (X) and outlet (4) for the passage of air flow through him, and the tool (30) for the flow path, wherein the tool (30) flow contains the static surface (32) for the direction of the flow, which is intended to guide the air flow and, at least partially, tilted relative to the Central axis (X) housing (2), estate static surface (32) for the flow direction is made with the possibility of giving the air jet is essentially directed along the tangent component of the speed in addition to the component of the velocity, which has the same direction as the Central axis (In) nozzle (20), for the message of the rotational motion of the air stream, which comes from a hair dryer.

9. Hair dryer (1) in paragraph 8, in which the tool (30) flow includes blades (31) for the direction of the flow, which take place in the radial direction inside from the internal surface of the body (2).

10. Hair dryer (1) item 9, in which the blade (31) to direct the flow of twisted, in particular twisted in a spiral around their respective longitudinal axis (h).

11. Hair dryer (1) in paragraph 10, in which the blade (31) to direct the flow of twisted, in particular twisted in a spiral along their respective longitudinal axis so that part of the surface (32) flow essentially parallel to the Central axis (X) housing (2), a part of the surface (32) flow essentially perpendicular to the Central axis (X) housing (2).

12. Hair dryer (1) in paragraph 11, in which the surface (32) flow essentially perpendicular to the Central axis (X) housing (2) near the inner surface of the body (2).

13. Hair dryer (1) in paragraph 11, in which the surface (32) flow essentially parallel to the Central axis (X) housing (2) near the Central axis (X).