FR3087322A1 - HAIRDRESSING APPARATUS WITH LIQUID DRAINING DEVICE - Google Patents

Abstract

Hairdressing appliance comprising a box (111) comprising a liquid transport device and / or a liquid storage device and at least one electrical or electronic component, characterized in that the box (111) comprises a discharge device ( 114) of liquid designed to evacuate, outside the housing (111), the liquid in the event of a liquid leak from the liquid transport device and / or the liquid storage device, and in that said device d The evacuation is arranged so that the liquid cannot come into contact with said at least one electrical or electronic component.

Description

HAIRDRESSING APPLIANCE WITH LIQUID EVACUATION DEVICE Technical field The present invention relates to the field of household appliances and more precisely to hairdressing appliances, and more particularly to hairdressing appliances equipped with a liquid transport device, in particular of water, for example hairdressing devices using steam to optimize the shaping of the hair.

Such a hairdressing appliance comprises a box comprising a liquid transport device and / or a liquid storage device and at least one electrical or electronic component.

STATE OF THE ART It is known, for example, from document WO 2004/002262 to use steam to improve the efficiency of hairdressing devices, and in particular straighteners.

For example, as described in this document, the hairdressing device is in the form of a hair straightener, one of the arms of which comprises a liquid reservoir, a vaporization device and a vapor ejection device. towards the hair.

According to this example, the liquid is conveyed to the vaporization device by capillary action, using a wick transporting the liquid.

It is also known, in particular from patent EP 2 449 910, to use a peristaltic pump in a hairdressing appliance to transport the liquid from the reservoir.

In particular, this document teaches the use of a peristaltic pump to regulate the flow of fluid in order to supply a means of vaporization of the fluid.

Thus, according to the device described in this document, a peristaltic pump makes it possible to transport a fluid, in particular water, so as to produce steam.

These different constructions generally give satisfaction to the two users of the devices concerned, in particular in terms of performance and the hairstyle result obtained.

On the other hand, these constructions both present a risk in the event of a liquid leak.

Indeed, at least one of the arms comprises the vaporization device as well as one or more liquid transport devices, such as for example pipes, conduits, a wick, or even a pump.

In addition, as is the case for example in the first mentioned document, one of the arms of the apparatus also includes the liquid reservoir.

In other words, the hairdressing appliance comprises inside its casing at least one device 10 for transporting liquid, or even several elements containing liquid.

Therefore, there is a significant risk of liquid leakage.

For example the connection between the tank and the pipe connecting it to the vaporization device may be faulty (bad connection, wear of the connectors, etc.) and leak, the pipe may also disconnect for example following an overpressure caused by scale build-up, or the pipe itself may be defective (punctured, cracked, etc.).

The reservoir itself may also be defective (punctured, cracked, etc., for example as a result of an impact) and leak liquid.

If the device has a pump, this too may be faulty and leak liquid.

There are therefore several causes which could lead to a liquid leak inside one of the arms of the apparatus.

However, the presence of liquid, and in particular water, inside this type of device is undesirable.

Indeed, these devices are generally electrical devices, at least insofar as they include a heating element for electrically heating a hair-shaping surface, or even various electrical and electronic components.

Consequently, the presence of liquid inside these devices risks destroying their electrical and / or electronic components and therefore cause a malfunction or even total failure of the hairdressing device.

Furthermore, the risk of electrocution for the user cannot then be completely excluded, especially since he holds his devices in his hand and handles them in the immediate vicinity of his head.

3 There is therefore a need to further secure this type of device, whether for the components of the device itself or for the user.

Summary of the invention The object of the present invention is to overcome the aforementioned drawbacks.

An object of the invention is to provide a hairdressing appliance which is particularly safe, either for the electrical and / or electronic components of the appliance itself or for the user who handles the appliance.

Another objective of the invention is to provide a hairdressing appliance which is particularly reliable and robust.

Another objective of the invention is to provide a hairdressing appliance which is particularly simple and inexpensive to manufacture.

Another objective of the invention is to provide a hairstyling appliance which is particularly efficient.

The objectives are achieved with the aid of a hairdressing appliance comprising a housing comprising a liquid transport device and / or a liquid storage device and at least one electrical or electronic component, characterized in that the housing comprises a liquid evacuation device designed to evacuate, outside the case, the liquid in the event of a liquid leak from the liquid transport device and / or the liquid storage device, and in that said device d The drain is arranged so that the liquid cannot come into contact with said at least one electrical or electronic component.

According to the invention, the hairdressing appliance therefore comprises a device for transporting liquid, that is to say any device for transporting liquid, whether by mechanical action, using 'a pump for example, or by capillary action, at the area of a wick for example, or by gravitational action, for example by simple flow through a pipe or by any other known means by a person skilled in the art or by a combination of one or the other of these means.

Alternatively or additionally, the apparatus which is the subject of the invention comprises a liquid storage device, such as for example a reservoir intended to contain liquid, preferably water.

However, one could imagine without departing from the scope of the invention that the reservoir can also store a cosmetic product, optionally diluted in water.

The invention remarkably makes it possible to secure the operation of the apparatus insofar as the designers provided, during the design of the apparatus, a device for evacuating liquid which would be found unexpectedly or accidentally at the same time. 'inside the case, the liquid being evacuated in a controlled and thoughtful manner, for example by precisely controlling the liquid evacuation path and / or the precise location where the liquid is evacuated.

In other words, it is thus possible, thanks to the invention, to evacuate the liquid which would be found unexpectedly inside the case before the liquid comes into contact with an electrical or electronic component. .

Consequently, any accidental contact between the liquid and this component is remarkably avoided and, the safety, of the apparatus, but also of the user is greatly improved.

Indeed, the electrical or electronic components are not likely to be damaged and the risk of electrocution of the user is considerably reduced, if not eliminated.

Such control of the evacuation of the liquid which would be found abnormally inside the casing of a hairdressing appliance constitutes a quite remarkable difference compared to the appliances of the prior art in which the liquid was evacuated. by the only exit (s) that it could encounter, generally at the interface of several parts, and in particular between the case and a smoothing plate of the device.

However, this is a particularly sensitive area because it includes an electrical power component, the heating element of the smoothing plate, so that the liquid then came into contact with said electrical component.

Preferably, the liquid evacuation device comprises at least one orifice, and preferably two orifices, passing through the housing.

This makes it possible to control, and preferably to increase, the discharge rate of the liquid in a particularly reliable and inexpensive manner.

The orifice can have any shape.

However, said at least one orifice is, preferably, a hole whose diameter is between 0.5 mm and 4 mm, preferably between 15 mm and 1.5 mm.

Taking into account the plurality of orifices, the discharge section is advantageously between 1 mm2 and 4 mm2 and preferably between 2 mm2 and 2.5 mm2.

According to a preferred embodiment, the apparatus comprises a first arm and a second arm articulated together by a hinge so as to form a hair-shaping clamp.

The device then forms a hair straightener which allows great ease of use and an optimal styling result.

In a first variant of the previous embodiment, the box is formed by the first arm.

In other words, the device for transporting liquid and / or storing liquid, but also said at least one electrical or electronic component are integrated in the first arm, which makes it possible to obtain a relatively compact hairdressing device. .

Generally the first arm is designed to be grasped by the hand of the user and easily manipulated by the user near his head.

According to this first variant, advantageously, the first arm comprises a reservoir and a first surface for treating the hair by contact, the liquid discharge device being located between the reservoir and the first treatment surface.

Such an arrangement makes it possible to have a particularly compact hairdressing appliance.

In addition, the arrangement of the discharge device between the reservoir and the first treatment surface makes it possible to preserve the latter from being in contact with the liquid which could accidentally be found inside the arm, which prevents the liquid from coming into contact with the liquid. does not come into contact with the hair.

This is also particularly useful and reassuring in the case where the first treatment surface is a surface heated by an electric heating element (PTC for example).

Preferably, the liquid evacuation device is located at a distance of between 10 mm and 50 mm 6 from the edge of the first treatment surface, preferably between 20 mm and 30 mm.

This makes it possible in particular to preserve a safety distance with respect to the first treatment surface and in particular with respect to its electric heating element.

In a second variant of the same embodiment, the box is located at a distance from the first arm and connected to the first arm by a cord.

This configuration makes it possible to provide a case of larger size, for example to integrate a more voluminous, because powerful, liquid transport device (a pump for example), and / or a liquid storage device 10 of large capacity.

In this case, the box is then generally intended to be placed on a work surface, such as a table for example, to remain motionless there while the first arm is itself portable and manipulated by the user.

According to this variant, the first arm comprises a first surface for treating the hair by contact, the box comprises a reservoir and the liquid discharge device is located between the reservoir and the treatment surface.

As explained above, the evacuation device can then include at least one orifice passing through the housing.

But it is also perfectly conceivable that, in an alternative or complementary manner, the arm includes said orifice or another orifice of another evacuation device.

In fact, according to this variant, liquid is stored or transported in the box (that is to say in the base) and in the arm.

It may therefore be judicious to position an evacuation device according to the invention in the box and another evacuation device according to the invention in the arm in order to optimize the safety of the device.

Thus, according to this variant, in the event of a liquid leak in the base, the liquid will be discharged in a controlled manner so that the liquid cannot come into contact with an electrical or electronic component of the base, and in the event of a leak. in the arm, the liquid will be evacuated in a controlled manner so that the liquid cannot come into contact with an electrical or electronic component of the arm.

The expression “treatment surface” used previously denotes any type of surface, whatever its shape or dimensions, as long as it comes into contact with the hair at least at one point.

7 Indifferently the treatment surface can be continuous, for example formed by a single part, or on the contrary discontinuous, for example formed by a plurality of parts.

The treatment surface can, by way of illustration and without limitation, be: 5 - smooth and flat, for example being formed by a smoothing plate, - smooth and curved, for example being formed by a mandrel, a roller or a tile, - corrugated for example by comprising a succession of hollows and bumps 10 - uneven for example by comprising pins or teeth, - etc.

According to an advantageous embodiment of the invention, the liquid transport device comprises a peristaltic pump which comprises a pump body defining a chamber in which there is a deformable pipe 15 intended to contain a liquid to be displaced, as well as a liquid drain device designed to, in the event of rupture of the deformable pipe of the pump, drain the liquid from the chamber to the outside of the pump according to a controlled path, and said drain device communicates with said drain device.

Advantageously, the liquid draining device comprises at least one hole which makes it possible to control the flow path of the liquid in a very economical and safe manner.

By “controlled trajectory” is meant that the place through which the liquid will drain, that is to say flow, is defined in advance, chosen by the designers.

In other words, we know precisely where and how the liquid will drain.

Advantageously, the diameter of the hole 25 is between 0.5 mm and 4 mm, preferably between 1 mm and 1.5 mm.

Preferably, the liquid draining device comprises two holes, advantageously arranged one close to the other, for example separated by a distance between 1 mm and 5 mm, which makes it possible to increase the flow rate and therefore the speed. drain.

The presence of a plurality of holes also makes it possible to guarantee the emptying of the pump even if one of the holes were to be blocked.

The total discharge section is thus between 2 mm2 and 2.5 mm2, 8 By "rupture of the deformable pipe" is meant any deterioration which could lead to a loss of tightness of said pipe, that is to say to a leak. of the liquid contained in the deformable pipe.

For example, this may result from a pipe explosion, a crack in the pipe, a hole in the pipe, excessive porosity of the pipe, or even accidental disconnection or disconnection. of the pipe, for example as a result of overpressure due to scaling in the device.

By “chamber” is meant any space in three dimensions intended to accommodate at least one element, in this case the deformable pipe of the pump.

Thus, thanks to this embodiment of the invention, in the event of an unexpected or accidental presence of liquid inside the pump, the liquid is rapidly discharged along a path controlled in advance by the designers and at a precise location defined in advance, thus avoiding any accidental contact between the liquid and any electrical or electronic component.

More precisely, the liquid is first evacuated from the pump at a precise and chosen place thanks to the liquid drain device, then evacuated from the apparatus thanks to the evacuation device, the latter communicating with the draining device of the liquid. the pump.

Thus, the emptying and evacuation devices communicate with each other by any sealed means.

For example, the emptying device 20 of the pump can be connected to the evacuation device of the appliance by means of a pipe or else the emptying device and the evacuation device can be placed side by side. 'other, for example one being on top of the other.

Preferably, the liquid drain device is arranged through the pump body.

Advantageously, the peristaltic pump comprises a cover cooperating with the pump body and the liquid draining device can be arranged through the cover.

This construction then makes it possible to provide a peristaltic pump, the assembly and / or possible maintenance of which are facilitated, thanks to the presence of the cover, while guaranteeing controlled evacuation of the liquid which could be found inside the chamber.

In other words, the drain device can be any device passing through the pump body, the cover or the pump body and the cover, i.e. any device capable of passing through the pump body, the cover or the pump body and the cover. to connect the chamber and the exterior of the pump in a place defined in advance by design.

Preferably, the liquid drain device comprises at least one hole, said at least one orifice, and at least one hole, being arranged facing each other, that is to say one in opposite each other.

This arrangement makes it possible to have a particularly compact and inexpensive apparatus insofar as the distance between the emptying and evacuation devices is minimized.

Advantageously, the liquid emptying device comprises a sealing element arranged between said emptying and evacuation devices, which makes it possible to guarantee the sealing between the pump and the housing of the apparatus, thus avoiding any risk of accidental contact between the liquid and the electrical component (s) of the device.

In other words, according to this arrangement, the liquid which could be inside the chamber of the pump in the event of rupture of the deformable pipe is directly discharged outside the casing containing the pump, and this in turn. thoughtful and controlled manner, in particular by having defined during the design the precise place where the liquid had to be evacuated.

In addition to improving safety, the fact of evacuating the liquid outside the device 20 will allow the user to be alerted, at least visually, that a malfunction has occurred inside his device. hairdressing (in this case that the deformable hose broke for example).

Preferably, the sealing element comprises an O-ring. According to an advantageous embodiment, said peristaltic pump 25 comprises a sealing device designed to contain the liquid inside the chamber in the event of rupture of the deformable pipe.

Thus the liquid is contained, that is to say maintained, preserved, in the chamber of the pump and does not spread outside the pump in an uncontrolled manner, but only by the pump drain device.

Therefore, a possible rupture of the tubing of the peristaltic pump has limited consequences since the liquid remains contained inside the pump and does not spill out outside the pump, as would normally be the case with pumps known from the prior art.

The liquid is discharged only by the emptying device, that is to say at a well-defined location and advantageously along a controlled path, the location and advantageously the emptying path having been carefully defined in accordance with the procedure. advance by the pump designers.

In addition, taking into account the sealing device, the emptying device constitutes the only possible passage point for the liquid which could be inside the chamber, the latter being moreover sealed.

Therefore, the evacuation of the liquid only by the drain device is guaranteed, regardless of the orientation of the pump in space.

It is therefore possible to install a pump as defined by the invention in spaces where any presence of liquid is normally to be avoided, for example in the immediate vicinity of electrical or electronic components as will be detailed below.

According to a preferred embodiment, the chamber comprises a rotor in contact with the deformable pipe, said rotor is connected to a drive shaft passing through the pump body, and the sealing device comprises a first sealing element which is arranged between the drive shaft and the pump body.

Therefore, the liquid, in case of rupture of the deformable pipe, cannot escape through the area between the drive shaft, which is a rotating part, and the pump body, which is a. fixed part.

According to this preferred embodiment, the first sealing element comprises a lip seal (s), and preferably a two lip seal.

This type of seal, and in particular the double lip seal, makes it possible to ensure a very good seal between a rotating shaft, in this case the drive shaft, against which the lip or lips of the seal presses and a fixed part, in this case the pump body, in which the seal is held.

According to another preferred embodiment, the peristaltic pump comprises a cover cooperating with the pump body, and the sealing device 30 comprises a second sealing element arranged between the pump body and the cover.

This construction then makes it possible to provide a peristaltic pump whose assembly and / or possible maintenance are facilitated, thanks to the presence of the cover, while guaranteeing a seal between the pump body and the cover in the event of rupture of the deformable pipe.

Advantageously, the second sealing element comprises a seal of circular section disposed at least partially on the periphery of the pump body and of the cover.

It is also conceivable that, instead of passing through the pump body as described above, the drive shaft passes through the cover and that the first sealing element is located between the drive shaft and the cover.

According to another preferred embodiment, the peristaltic pump comprises an inlet connector intended to receive a liquid suction duct, and an outlet connector intended to receive a liquid delivery duct, connected to the deformable pipe.

The sealing device comprises a third sealing element disposed between the pump body and at least one of the inlet or outlet connectors.

Alternatively, the third sealing element is disposed between the cover and at least one of the inlet or outlet connectors.

Alternatively, the third sealing element is disposed between the pump body, the cover, and at least one of the inlet or outlet connectors.

Such a construction makes it possible to ensure the seal between the chamber and the exterior of the pump at the level of the connectors of the pump, regardless of the orientation of the pump in space.

For example the pump can be positioned with at least one of its connectors, or even both, arranged at the bottom, and, even in the event of rupture of the deformable pipe, there will be no leak of liquid at the level of the connectors, that is, that is to say between the connectors and the pump body or the cover for example.

According to a first variant of the previous preferred embodiment, the third sealing element comprises a plate, preferably made of silicone, through which each of said inlet and outlet connectors passes.

Said plate is then disposed between the pump body and / or the pump cover 30 and around at least one of the inlet or outlet connectors.

Advantageously, the plate comprises two orifices, and preferably two 12 holes, each of the orifices accommodating one of the connectors.

This construction makes it possible to guarantee the tightness of the chamber including at the level of the connectors, in the case where the latter are parts attached to the pump (for example are not molded with the pump body or the cover, 5 like this is frequently the case with pumps).

In addition, this solution makes it possible to remove the connectors without any damage to the connectors or to the pump itself.

The use of a silicone plate is particularly advantageous and inexpensive in the case where the two connectors are located close to each other and on the same plane forming a surface of the pump as will be detailed by the following.

According to a second variant of the previous preferred embodiment, the third sealing element is arranged between the pump body and / or possibly the cover and each of the inlet and outlet connectors, said third sealing element comprising two gaskets. toric.

In other words, according to this variant, each connector has its own O-ring disposed between the connector and the pump body and / or the cover so as to seal the chamber at the level of the connectors.

This solution is particularly advantageous in the case where the connectors are attached to the pump (for example are not molded with the pump body 20 or the cover) and are remote from each other and / or are not in the same plan.

Advantageously, the input and output connectors are arranged in the same plane belonging to one and the same external face of the peristaltic pump.

This makes it possible to have a particularly compact pump, the connections of which are assembled on the same face, thus limiting the length of the conduits necessary for the departure and arrival of the pump.

Preferably, the input and output connectors each comprise an elbow advantageously of substantially 90 °.

Such connectors make it possible to facilitate the integration of the pump by placing the latter transversely to the suction 30 and delivery conduits, respectively at the inlet and at the outlet of the pump.

It is thus possible to limit the bulk of the pump and liquid ducts assembly.

Of course, the embodiments described above are perfectly compatible with one another, and other advantageous embodiments can result from their different combinations.

It is in particular possible to envisage a peristaltic pump which would result from the combination of the three embodiments described above.

This would then result in a particularly compact peristaltic pump, easy to manufacture and to maintain because it is equipped with a cover, inexpensive and completely sealed, whatever its orientation in space, in the event of its deformable pipe breaking.

The sealing device would then comprise said first, second and third sealing elements described above.

Brief description of the figures The following description of a preferred and non-limiting embodiment of the hairdressing appliance demonstrates the characteristics which are the subject of the present invention.

This description is based on figures, among which: FIG. 1 illustrates a hairdressing appliance as described by the invention in a perspective view. - Figure 2 illustrates the apparatus of Figure 1 in another orientation. 20 - Figure 3 illustrates in perspective the first arm of the apparatus of Figure 1. - Figure 4 is a perspective detail view of zone A of Figure 3 - Figure 5 shows the same detail A as figure 4 but with some parts which have been masked in order to see the internal components of the arm. - Figure 6 is a perspective view of a peristaltic pump as defined by the invention. 14 - Figure 7 is an exploded view of the components of the pump of Figure 6.

5 Detailed description As illustrated in FIG. 1, the household appliance 1 as defined by the invention is a hairdressing appliance and more precisely a hair straightener equipped with a device for consuming liquid 4.

More precisely, the liquid consumption device 4 comprises a vaporization means 41, in this case a vaporization chamber, and a means 42 for diffusing the vapor thus produced, in the direction of a lock of hair.

The diffusion means 42 may in particular be formed by a series of orifices, as illustrated, or else by a slot or a diffusion groove.

Such elements are well known to those skilled in the art, and are for example detailed in patent EP 2 449 909 by the applicant.

The household appliance 1 comprises a first arm 11 and a second arm 12 interconnected by a hinge 13 disposed substantially at the end of each of said first arm 11, and second arm 12.

Thus the arms are movable with respect to one another according to a rotational movement and more precisely of a gripper.

As can be seen in FIG. 3, the first arm 11 comprises a first surface 112 for treating the hair by contact, in this case a heating plate.

The second arm 12 comprises a second surface for treating the hair 122 by contact, which can be seen in FIG. 2, complementary to the first treatment surface 112.

Preferably, the second contact treatment surface 122 is also heating.

In a manner well known as such, the hinge 13 allows the user to open the hair straightener to introduce a lock of hair between the treatment surfaces 112, 122, then to close the clamp over the lock of hair. to achieve shaping, generally smoothing.

As can be seen in figure 2, the household appliance 1 also comprises a device for storing liquid, in this case a tank 3.

Preferably, the reservoir is intended to store water.

However, one could imagine without departing from the scope of the invention that the reservoir can also store a cosmetic product, optionally diluted in water.

According to the invention illustrated, the reservoir is integrated into the first arm 11.

But it is perfectly possible, and this without departing from the scope of the invention, for the reservoir to be separate from the first arm 11 and from the second arm 12.

The reservoir can in fact be located at a distance from the first arm 11, and second arm 12, and 10 be located for example in a remote base (that is to say located at a distance from the clamp) connected to one of the arm by a cord that can carry the liquid.

Such an arrangement is for example described in patent EP 2 449 912 of the applicant.

As can be seen in Figures 3 and 4, the household appliance 1 15 comprises a housing 111 formed by the first bottom 11.

However, although this is not illustrated, it is perfectly conceivable, without departing from the scope of the invention, for the case to be formed by the offset base mentioned above.

The box 111 thus forms an envelope, for example made of plastic material, containing at least one electrical or electronic component, such as for example a heating element (PTC for example), an electric motor 5, a temperature sensor, a capacitor, an electronic card, etc.

Generally these elements are very sensitive to any contact with a liquid, and in particular with water, such contact being able to cause their damage, even their destruction and even generate a risk of electrocution.

As can be seen in FIG. 4, the box 111 comprises a liquid discharge device 114 designed to discharge, outside the box 111, the liquid in the event of a liquid leak from a liquid transport device 32. , 6, 33, in this case a peristaltic pump 6 or a pipe 32, 33, and / or liquid storage, in this case a reservoir 3.

The discharge device 114 is arranged so that the liquid cannot come into contact with the electrical or electronic component.

More precisely, the liquid discharge device 114 comprises two orifices 1141 arranged one next to the other.

Each of the orifices 1141 passes through the box 111, so as to put the inside of the box 111 in communication with the outside.

The fact of using two separate orifices makes it possible to ensure a sufficient discharge flow rate and to guarantee a minimum flow rate if one of the orifices 1141 should become blocked.

As illustrated by FIG. 4, each orifice 1141 is a hole whose diameter is substantially equal to 1.2 mm.

Thus the possible discharge section is approximately 2.26 mm2.

The holes are approximately 2.5mm apart.

The liquid discharge device 114 is located at a distance of about 25 mm from the edge of the first treatment surface 112 which allows a safe distance to be ensured when the water flows through it. of the evacuation device 114 and to prevent the evacuated liquid from coming into contact with the first treatment surface 112.

The liquid evacuation device 114 is located opposite the second arm 12 which makes it possible to hide it when the hair straightener is closed, thus improving the overall aesthetics.

In order to supply the liquid consumption device 4 with liquid, and preferably with water, the household appliance 1 comprises a liquid transport device, in this case a peristaltic pump 6.

According to the invention illustrated, the peristaltic pump 6 is integrated in the first arm as can be seen in FIG. 5, but it is also possible, without departing from the scope of the invention, for the peristaltic pump 6 to be integrated into the remote base mentioned above.

As can be seen in Figures 5 and 6, the peristaltic pump 6 comprises in particular a pump body 60.

An inlet connector 61 is arranged on the pump body 60 in order to connect the peristaltic pump 6 to a suction pipe 32, itself connected to the reservoir 3.

An output connector 62 is arranged on the pump body 60 in order to connect the peristaltic pump to the liquid consumption device 4, via a delivery duct 33.

More specifically, each of the inlet 61 and outlet 62 connectors pass through the pump body 60.

Thus, a part of each of the inlet 61, and outlet 62 connectors protrudes outside the pump and a part of each of the inlet 61, and outlet 62 connectors protrudes inside the pump. pump, that is to say in a chamber 68.

The part of the inlet 61 and outlet 62 connectors projecting outside the pump is then connected respectively to the suction duct 32 and to the discharge duct 33, as can be seen in FIG. 5.

The part of the inlet 61 and outlet 62 connectors projecting into the chamber 68 is then connected to a deformable pipe 63.

Advantageously, as can be seen in Figures 6 and 7, each of the inlet 61 and outlet 62 connectors comprises an elbow, preferably oriented at 90 °.

Preferably, the elbow is outside the peristaltic pump 6, in contact with the pump body 60.

Advantageously, the elbow is rigid, just like the connectors, which ensures good resistance and prevents the phenomenon of untimely bending.

The inlet 61 and outlet 62 connectors can then be positioned on the same face of the pump body 60, even if said face is of small size.

Indeed, the input 61 and output 62 connectors can be positioned one next to the other, as illustrated, or even be in contact with one another, which makes it possible to limit the bulk. of the peristaltic pump 6 and to simplify the routing of the suction 32 and delivery 33 conduits.

Indeed, the input 61 and output 62 connectors can, thanks to their 90 ° bend, be oriented in diametrically opposite directions, while being one next to the other, which makes it possible to have a liquid circuit external to the pump 25 which is particularly simple and compact.

In fact, the suction duct 32 and the delivery duct 33 are found practically aligned with one another, that is to say in the same plane and practically along the same straight line.

In addition, each of these conduits enters and leaves the peristaltic pump 6 via the same face of the pump, that is to say via one and the same side.

It is thus possible to position the peristaltic pump 6 in a particularly cramped and difficult to access location since it only takes one face of the pump to be accessible to connect the suction 32 and delivery 33 conduits thereto.

18 As illustrated in Figure 6, the pump also comprises a cover 64 cooperating with the pump body 60.

More precisely, the cover 64 is mounted on the pump body 60, which makes it possible to have a pump that is easy to assemble.

In particular, the assembly of the various internal components 5 such as the components of a rotor 65 for example is facilitated.

In addition, the peristaltic pump 6 can be dismantled and reassembled at will, without any damage, for example to intervene on the internal components.

The peristaltic pump 6 is also connected to an electric motor 5 intended to set in motion the various mobile parts of the peristaltic pump 6 and therefore to move the liquid from the reservoir 3 to the liquid consumption device 4.

Figure 7 shows the different components of the peristaltic pump 6.

Thus, the pump body 60 forms a chamber 68, that is to say a space, a recess or a housing in which various elements are located.

In this case the chamber 68 is defined by the pump body 60 and is closed by the cover 64.

The chamber thus contains a deformable pipe 63, a rotor 65 comprising one or more pressing elements 651 connected to the rotor by a support 653 and one or more springs 652.

The deformable pipe 63 is fixed and is connected on the one hand to the inlet connector 61 and on the other hand to the outlet connector 62 so as to form a loop.

The rotor 65 is located in the center of the loop and is driven in rotation by a drive shaft 51 passing through the pump body 60 and connected to the motor shaft of the electric motor 5.

The rotor is guided in rotation by a bearing 645 housed in the cover.

During the rotation of the drive shaft, the pressing elements 651, such as rollers for example, then punctually crush the deformable pipe 63, and under the effect of their displacement following the rotation of the rotor 65, this creates a suction phenomenon but also a displacement of the liquid which is inside the deformable pipe 63.

Thus the liquid is sucked from one side of the pump and discharged from the other.

This operation is completely conventional and characteristic of peristaltic pumps known to those skilled in the art so that it is not further detailed here.

The peristaltic pump 6 and the electric motor are both connected to a fixing plate 52, for example by means of screws 53.

As can be seen in Figure 7, the peristaltic pump 6 comprises a sealing device 661, 662, 663.

The latter constitutes a safety device forming an integral part of the pump described in detail below.

More precisely, the sealing device of the peristaltic pump 6 comprises a first sealing element 661 disposed between the drive shaft 51 and the pump body 60 (or, alternatively, the cover 64).

More precisely, the first sealing element 661 is a lip seal and preferably a two lip seal.

Such a seal is indeed very efficient in ensuring a perfect seal against any liquid between a rotating part, in this case the drive shaft 51, and a fixed part, in this case the pump body 60. (or possibly the cover 64).

Thus, thanks to the presence of this first sealing element 661, the liquid which could possibly be inside the chamber 68, for example in the event of rupture of the deformable pipe 63 (or accidental disconnection of the connector of inlet and / or outlet), could not escape outside the chamber, that is to say outside the peristaltic pump 6, through the interstice, that is to say say the functional clearance between the drive shaft 51 (rotating part) and the pump body 60 (fixed part).

The first sealing element 661 simultaneously guarantees the correct rotation of the drive shaft 51 relative to the pump body 60 (or possibly to the cover) while guaranteeing the seal between these two parts.

According to the illustrated embodiment, the peristaltic pump 6 also comprises a second sealing element 662 disposed between the pump body 60 and the cover 64, as can be seen in FIG. 7.

This second sealing element 662 is advantageously formed by a seal of circular section.

The second sealing element 662 is then placed around the chamber 68, near the edge, that is to say the periphery of the pump body 60 and of the cover.

As can be seen in Fig. 7, the second sealing member 662 follows the contour of the pump body 60 and the cover 64, and therefore resumes its shape.

The second sealing element 662 almost forms a loop on itself, however the latter has two borders, that is to say it is not closed on itself.

Thus, once installed between the pump body and the cover, the second sealing element 662 takes substantially the shape of a horseshoe or even of the capital Greek letter Omega.

The presence of this second sealing element 662 thus makes it possible to ensure the sealing between the pump body 60 and the cover 64, while allowing disassembly and reassembly of the cover 64.

However, it may be noted that this second sealing element 662 does not go all the way around the pump body 60.

In other words, the second sealing element is not located on the entire periphery of the chamber 68 but on at least 60% and preferably 80% of the periphery of the chamber 68.

The portion of the remaining periphery is then closed by a third sealing element 663, as will be described more precisely below, which makes it possible to ensure a total seal between the pump body 60 and the cover 64, and therefore sealing of the chamber 68.

As can be seen in Figure 7, the peristaltic pump also has a third sealing member 663.

The latter comprises a plate through which the input 61 and output 62 connectors pass.

Preferably, the plate is made of silicone, or in any other material capable of ensuring leaktightness.

The plate then comprises two orifices allowing the passage of the inlet 61 and outlet 62 connectors.

The plate is made of a material sufficiently elastic to seal around said inlet 61 and outlet 62 connectors.

The plate is then in contact with the input 61 and output 62 connectors, the pump body 60, but also the cover 64 as can be seen in FIG. 7.

This plate makes it possible remarkably, in association with the second sealing element 662 described above, to complete the sealing of the chamber 68, that is to say to complete the sealing between the cover 64 and the pump body 60. , by closing the periphery of the room.

Thus, thanks to the combined presence of the previously described sealing elements, namely the first sealing element 661, the second sealing element 662, and the third sealing element 663, the chamber 68 is completely sealed.

Consequently, if liquid were to accidentally (rupture or disconnection of the deformable pipe 63) escape from the deformable pipe 21 63 and end up in the chamber 68, the liquid, generally water, would be trapped in the chamber. room 68 without being able to escape.

This makes it possible to obtain a peristaltic pump which is particularly safe because it is completely sealed, that is to say which cannot let any liquid escape, even in the event of its deformable tube breaking.

It is then possible to use the peristaltic pump of the invention in locations where any presence of liquid is prohibited, such as for example in the immediate vicinity of electrical or electronic components.

However, the invention as illustrated comprises another safety device, which can moreover constitute an invention as such.

Indeed, the pump illustrated in Figures 6 and 7 comprises a drain device 67 designed to, in the event of rupture of the deformable pipe 63 of the peristaltic pump 6, drain the liquid from the chamber 68 to the outside of the peristaltic pump. 6 along a controlled trajectory.

This safety device is particularly effective when it is associated with a household appliance 1 which includes a liquid discharge device 114, as is detailed below.

As can be seen in Figures 5 to 7, the peristaltic pump 6 comprises two holes 671 which then form a drain device 67 connecting the chamber 68 and the outside of the pump at a precise location, judiciously selected by the creators.

Each of the holes has a diameter of approximately 1.2 mm, which corresponds to a discharge section of 2.26 mm2.

The holes are spaced 2.5 mm apart.

Thus, when liquid is accidentally found (for the aforementioned causes) in chamber 68, it is possible to control the flow path of the liquid at a precise location, thought out and selected in advance by the designers.

For example, it is then possible to remove, thanks to the location of the emptying device, the liquid, during its flow, from any electrical or electronic component.

By combining the emptying device 67 with the sealing elements 661, 662, 663 defined previously, as illustrated, the controlled emptying of the chamber 68, after a rupture of the deformable pipe 63, 22 only by the emptying device 67, is guaranteed whatever the orientation of the pump in space.

In fact, if the pump is oriented in accordance with FIG. 6, then the liquid will naturally, by gravity, flow through the drain device 67 which is then located at a low point of the pump body.

The presence of the first sealing element 661 and of the third sealing element 663 is not, in this case, necessary for the good flow only through the emptying device since these elements are then located above the emptying device 67 .

On the other hand, if the pump is in another orientation, for example with the inlet 61 10 and outlet 62 connectors at the bottom, the drain device 67 is then found at a high point of the pump.

In the absence of a third sealing element 663, the liquid could then flow through the gap between the pump body 60 and the inlet 61 and outlet 62 connectors.

In the absence of a second sealing element 662, the liquid could also escape through the gap between the drive shaft 51 and the pump body 60, even before reaching the drain device. 67.

The liquid flow would then be uncontrolled, as is the case with the pumps of the prior art in the event of rupture of the deformable pipe.

Thanks to the sealing elements 661, 662, 663, described above, water cannot flow through these interstices and is therefore forced to flow through the drain device 67 and only through the drain device 67.

In addition, the presence of said sealing elements 661, 662, 663 makes it possible to prevent any flow of unwanted liquid, that is to say elsewhere than through the emptying device, if the latter becomes blocked or does not succeed. not to ensure a sufficient flow to empty the chamber quickly enough.

According to the embodiment of the invention illustrated, the emptying device 67 of the peristaltic pump 6 communicates with the evacuation device 114 of the housing 111.

In this case, as can be seen in Figures 4 and 5, the emptying device 67 is located opposite the evacuation device 114.

In other words, the emptying device 67 is located opposite the evacuation device 114.

More precisely, the emptying device 67 comprises two holes 671, the evacuation device 114 also comprises two orifices 1141, each of the holes 671 belonging to the emptying device 67 being arranged opposite, that is to say opposite. vis-à-vis an orifice 1141 of the discharge device 114.

Advantageously and remarkably, the discharge section of the emptying device 67 and that of the discharge device 114 are substantially identical and of the order of 2.26 mm2, which guarantees the total flow of the liquid which could be found in the chamber 68 without funnel phenomenon.

The drain 67 and drain 114 devices are then separated by a sealing element 664 providing the seal, in this case an O-ring, between the drain device and the drain device 114.

The sealing element 664 is held in a housing around the emptying device 67 and is then in contact with the housing 111 and the peristaltic pump 6, and in particular the pump body 60.

Thanks to this embodiment of the invention, in the event of rupture of the deformable pipe 63 of the peristaltic pump 6 of the household appliance 1, the liquid would then be evacuated in a controlled manner, defined by design, that is to say. say in a thoughtful manner, only by the drain device 114, and via the drain device 67 of the peristaltic pump 6, so that the liquid cannot come into contact with any electrical or electronic component located at the same. inside the case 111.

In other words, the interior of the box 111 is preserved from any possible liquid, and this even in the event of a failure within the peristaltic pump 6, which considerably improves the safety of the household appliance 1, whether it be for the device itself (its electrical or electronic components) and for the user (risk of electrocution).

Claims (14)

CLAIMS 1. Hairdressing appliance (1) comprising a housing (111) comprising a liquid transport device (32, 6, 33) and / or a liquid storage device (3) and at least one electrical or electronic component, characterized in that that the housing (111) comprises a liquid discharge device (114) designed to discharge, outside the housing (111), the liquid in the event of a liquid leak from the liquid transport device (32, 6 , 33) and / or the liquid storage device (3), and in that said discharge device is arranged so that the liquid cannot come into contact with said at least one electrical or electronic component. 2. Hairdressing device (1) according to the preceding claim characterized in that the discharge device (114) of liquid (114) comprises at least one orifice (1141), and preferably two orifices, passing through the housing (111). 3. Hairdressing appliance (1) according to the preceding claim characterized in that said at least one orifice (1141) is a hole whose diameter is between 0.5 mm and 4 mm, preferably between 1 mm and 1.5 mm. 4. Hairdressing appliance (1) according to any one of the preceding claims, characterized in that it comprises a first arm (11) and a second arm (12) articulated together by a hinge (13) so as to form a hair shaping clip. 5. Hairdressing appliance (1) according to the preceding claim characterized in that the housing (111) is formed by the first arm (11). Hairdressing appliance (1) according to the preceding claim, in which the first arm (11) comprises a reservoir (3) and a first surface (112) for treating the hair by contact, characterized in that the evacuation device (114) liquid is located between the reservoir (3) and the first treatment surface (112). 7. Hairdressing appliance (1) according to the preceding claim characterized in that the liquid discharge device (114) is located at a distance between 10 mm and 50 mm from the edge of the first treatment surface (112), preferably between 20 mm and 30 mm. A hairdressing appliance (1) according to any one of the preceding claims characterized in that the liquid transport device comprises a peristaltic pump (6) which comprises a pump body (60) defining a chamber (68) in it. which is a deformable pipe (63) for containing a liquid to be displaced, as well as a liquid drain device (67) designed to, in the event of rupture of the deformable pipe (63) of the pump, drain the liquid from the chamber (68) towards the exterior of the pump along a controlled path, and in that said emptying device (67) communicates with said evacuation device (114). 9. Hairdressing appliance (1) according to the preceding claim characterized in that the liquid drain device (67) is arranged through the pump body (60). 15 10. Hairdressing appliance (1) according to claim 8 characterized in that the peristaltic pump (6) comprises a cover (64) cooperating with the pump body (60) and in that the emptying device (67) of liquid is arranged through the cover (64). 11. Hairdressing appliance (1) according to any one of claims 8 to 10 attached to claim 2 characterized in that the emptying device (67) of liquid comprises at least one hole (671), said at least one orifice (1141), and at least one hole (671), being arranged opposite one another. 12. Hairdressing appliance (1) according to one of claims 8 to 11 characterized in that the liquid drain device (67) comprises a sealing element (664) disposed between said drain and discharge devices. 13. Hairdressing appliance (1) according to the preceding claim characterized in that the sealing element (664) comprises an O-ring. 14. Hairdressing device (1) according to any one of claims 8 to 13 characterized in that said peristaltic pump (6) comprises a sealing device (661, 662, 663) designed to contain the liquid to the inside the chamber (68) in the event of rupture of the deformable pipe (63).