Hairstyling appliance with liquid discharging device

Abstract

The invention relates to a hairstyling appliance (1) comprising - a housing (111) having a recess (30) for receiving a liquid reservoir (3), - a device for conveying the liquid (2; 6; 32; 33) coming from the liquid reservoir (3), - a liquid discharging device (114) designed to discharge the liquid to the recess (30) for receiving the liquid reservoir in the event of liquid leaking from the liquid conveying device (2; 6; 32; 33), and - at least one electrical or electronic component (54), said discharging device (114) being arranged so that the electrical or electronic component (54) is fluidically isolated from the liquid in the event of liquid leaking from the liquid conveying device (2; 6; 32; 33).

Description

[0001] Description

[0002] Title: Hairstyling appliance with liquid discharging device

[0003] The present invention relates to the field of household electrical appliances and more specifically to hairstyling appliances, and most particularly to hairstyling appliances provided with a device for conveying liquid, particularly water, such as for example hairstyling devices that use steam to optimize the shaping of the hair.

[0004] Prior art

[0005] Numerous appliances of this type have already been proposed. These appliances generally comprise means for applying steam, internal heating plates between which the locks can be gripped, in particular in the case of straightening, and / or heating plates on the external surfaces thereof, in particular in the case of curling or at least making the locks wavy. These appliances are generally used by moving the appliance between the root and the tip of the hair, with the lock wound around the appliance or not depending on the desired result and the type of appliance.

[0006] It is known practice, from WO 2004 / 002262 for example, to use steam to improve the efficiency of hairstyling devices, and particularly hair straighteners. For example, as described in said document, the hairstyling appliance takes the form of a straightening iron one of the arms of which comprises a liquid reservoir, a vaporization device and a device for spraying steam towards the hair.

[0007] It is also known practice, in particular from EP 2 449 910, to use a peristaltic pump in a hairstyling appliance in order to convey the liquid from the reservoir. Using a peristaltic pump makes it possible to adjust the fluid flow rate in order to supply fluid vaporization means.

[0008] These structures all pose a risk in the event of leaking liquid. At least one of the arms comprises the vaporization device as well as one or more liquid conveying devices, such as tubes, pipes, a wick, or even a pump. In addition, as is the case for example in the first document mentioned above, one of the arms of the appliance also comprises the liquid reservoir. In other words, the hairstyling appliance comprises, inside its housing, at least one liquid conveying device, or even a plurality of elements containing liquid. There is therefore a considerable risk of liquid leaking towards electrical elements. For example, the connection between the reservoir and the tube linking it to the vaporization device can be defective (poor connection, wear of the connectors, etc.) and leak, the tube can also be disconnected for example following excess pressure due to the scaling of the appliance, or the tube itself can be defective (punctured, split, etc.). The reservoir itself can also be defective (punctured, split, etc., for example following an impact) and allow liquid to escape. If the appliance comprises a pump, it can also be defective and allow liquid to escape. There are therefore multiple causes that could lead to liquid leaking inside one of the arms of the appliance.

[0009] The presence of liquid, and particularly water, inside this type of appliance, is undesirable. These appliances are generally electrical appliances, at least insofar as they comprise a heating element for electrically heating a surface for shaping the hair, or even a number of electrical and electronic components. Consequently, there is a risk that the presence of liquid inside these appliances will destroy their electrical and / or electronic components and therefore result in a malfunction or even the complete failure of the hairstyling appliance. In addition, the risk of electrocution for the user cannot be completely ruled out, especially as they hold the appliances in their hand and operate them in immediate proximity to their head.

[0010] EP 3 869 993 discloses a hairstyling appliance comprising a liquid conveying device and / or a liquid storage device, at least one electrical or electronic component, and a device for discharging any liquid that might be unexpectedly or accidentally inside the housing to the outside of the appliance. However, such an appliance requires precise positioning of the elements for conveying and discharging the liquid, in particular discharge orifices on the housing and the pump, and seals. The reproducibility of such sealing, in particular necessary when the appliance is maintained, particularly when the pump is changed, can be difficult to maintain. In addition, the discharge of liquid close to the heating elements on the housing can generate user discomfort due to the formation of undesirable steam.

[0011] There is thus a need to make this type of appliance safer, both for the components of the appliance itself and for the user, while maintaining the performance of the appliance and facilitating the maintenance of the appliance, in particular the repairability thereof.

[0012] Summary of the invention

[0013] The invention aims to meet this need in full or in part and relates, according to a first of its aspects, to a hairstyling appliance comprising: a housing having a recess for receiving a liquid reservoir, a device for conveying the liquid coming from the liquid reservoir, a liquid discharging device designed to discharge the liquid to the recess for receiving the liquid reservoir in the event of liquid leaking from the liquid conveying device, and at least one electrical or electronic component, said discharging device being arranged so that the electrical or electronic component is fluidically isolated from the liquid in the event of liquid leaking from the liquid conveying device.

[0014] The invention makes it possible to make the operation of the appliance safe by means of the device for discharging any liquid leaking unexpectedly or accidentally from the liquid conveying device, the discharging of the liquid being able to take place in a controlled and considered manner, with control of the discharge path of the liquid and / or the precise location to which the liquid is discharged. In other words, it is thus possible, due to the invention, to discharge any liquid leaking unexpectedly before the liquid comes into contact with an electrical or electronic component. Consequently, any accidental contact between the liquid and said component is limited, and the safety of both the appliance and the user is improved. There is little risk of damage to the electrical or electronic components and the risk of electrocution of the user is considerably reduced.

[0015] Such control of the discharging of any liquid that might leak abnormally from a liquid conveying device of a hairstyling appliance, to a recess for receiving a reservoir, constitutes a noteworthy difference in relation to the appliances of the prior art.

[0016] This discharging of the liquid to the recess for receiving the reservoir makes it possible to avoid the presence of openings for discharging liquid on the surface of the appliance and eliminates the need to find a position for such openings on the surface of the appliance that is compatible with the functions of the appliance and user safety, in particular in relation to a surface-mounted electrical heating element. In addition, the absence of visible openings on the surface of the appliance improves the aesthetics of the appliance for the user.

[0017] The invention also makes it possible to limit the problems of sealing the liquid discharging device by increasing the arrangement options due to the liquid being discharged into the recess for the reservoir, which is not a visible part of the appliance that requires particular aesthetics. In addition, as the recess is closed when a liquid reservoir is received therein, the leaks remain limited and take place in the recess, which does not contain any electrical connections. This also makes it possible to facilitate the repair of the appliance, in particular the changing or repair of the conveying device, while facilitating the formation of a good seal.

[0018] The liquid received in the reservoir is preferably water. However, it can be envisaged without departing from the scope of the invention that the reservoir can also store a cosmetic product, optionally diluted in water.

[0019] Liquid discharging device

[0020] The liquid discharging device can comprise at least one through-orifice, and preferably two through-orifices, connecting together the recess for receiving the reservoir and a recess for receiving the liquid conveying device in the housing.

[0021] The orifice or orifices are in particular holes the diameter of which is between 0.5 mm and 4 mm, preferably between 1 mm and 1.5 mm.

[0022] Liquid conveying device

[0023] The liquid conveying device is any device that makes it possible to convey liquid, whether through a mechanical action, using a pump for example, or by capillary action, such as a wick for example, or by gravity, for example by simple flow through a tube, or by any other means known to a person skilled in the art, or by a combination of any of these means.

[0024] The liquid conveying device can comprise a body defining a pumping chamber containing a liquid circulating member. The liquid conveying device can also comprise a member for pumping the liquid in the liquid circulating member.

[0025] “Chamber” is given to mean any three-dimensional space suitable for receiving at least one element, in this instance the liquid circulating member.

[0026] The liquid conveying device can be received in the housing in a recess for receiving said conveying device. The recess for receiving said conveying device can extend between the recess for receiving the reservoir and a recess for a vaporization and steam distribution device of the appliance. The conveying device can be fluidically connected to a fluid inlet of the vaporization and steam distribution device of the appliance received in the corresponding recess. The liquid conveying device can extend along a longitudinal axis, substantially parallel to a longitudinal axis of the housing.

[0027] The liquid conveying device preferably comprises a peristaltic pump. The peristaltic pump can comprise a pump body defining the pumping chamber accommodating a deformable tube forming the liquid circulation member and suitable for containing a liquid to be moved, in particular between a liquid inlet fluidically connected to the reservoir, and a liquid outlet.

[0028] The peristaltic pump can comprise a rotary motor that rotates one or more rollers for circulating the liquid in the deformable tube, configured to compress the tube in at least one of their positions.

[0029] The liquid conveying device, in particular the peristaltic pump, can comprise a liquid draining device, in particular designed to drain the liquid from the pumping chamber to the outside of the conveying device, in particular the pump, in the event of the failure of the liquid circulation member, in particular the deformable tube of the pump in the pumping chamber. Said draining device preferably communicates with said discharging device, in particular through a sealed connection between the two.

[0030] “Failure” is given to mean any damage that could lead to loss of sealing of said member, that is, leaking of the liquid contained in the fluid circulation member. For example, this can result from the explosion of the tube, a crack or a hole in the tube, excessive porosity of the tube, or the accidental disconnection or uncoupling of the tube, for example as a result of excess pressure due to the scaling of the appliance.

[0031] Draining device

[0032] Advantageously, the liquid draining device comprises at least one hole making it possible in particular to very economically and safely control the flow path of the liquid. “Controlled path” is given to mean that the location through which the liquid will drain, that is flow, is defined in advance. In other words, it is possible to know precisely where and how the liquid will drain. Advantageously, the diameter of the hole of the draining device is between 0.5 mm and 4 mm, preferably between 1 mm and 1.5 mm.

[0033] Preferably, the liquid draining device comprises two holes, advantageously arranged close to each other, for example separated by a distance of between 1 mm and 5 mm, which makes it possible to increase the flow rate and therefore the draining speed. The presence of a plurality of holes can also make it possible to guarantee that the pumping chamber will be drained even if one of the holes becomes blocked. The total discharge area is thus for example between 1.5 mm2and 3.5 mm2, in particular between 2 mm2and 2.5 mm2.

[0034] The draining device, in particular the hole or holes, in particular the two holes, of the draining device, is preferably transversely offset relative to the longitudinal axis of the conveying device, in particular defined by the longitudinal axis of a shaft of the rotary motor of the pump. The draining device, in particular the hole or holes, in particular the two holes, of the draining device, is preferably transversely offset relative to the shaft of the rotary motor. In particular, the straight line passing through the two holes of the draining device is separated from the shaft of the rotary motor by a minimum distance of 2 mm.

[0035] The hole or holes, in particular the two holes, of the draining device, each extend along an axis parallel to the longitudinal axis of the liquid conveying device, in particular to the shaft of the motor of the pump.

[0036] The hole or holes, in particular the two holes, of the draining device, are preferably arranged so that they sealably interact with the orifice or orifices of the liquid discharging device, in particular each hole of the draining device is facing an orifice of the discharging device. The liquid draining and discharging devices can thus communicate with each other by any sealed means. For example, the draining device of the pump can be connected to the discharging device of the appliance by means of a pipe, or the draining device and the discharging device can be butted together and connected by a sealed connection, in particular a seal. This arrangement makes it possible in particular to have a particularly compact and low-cost appliance in that the distance between the draining and discharging devices is minimized.

[0037] Preferably, the liquid draining device extends through the body of the conveying device, in particular the pump body. The body of the conveying device, in particular the pump body, can comprise a removable cover for closing the pumping chamber, the liquid draining device being arranged in particular through said closing cover. This structure makes it possible to propose a conveying device the assembly and / or potential maintenance of which are facilitated, due to the presence of the cover, while guaranteeing the controlled discharge of any liquid that might be inside the chamber.

[0038] Preferably, the body of the conveying device is sealed with the exception of the draining device. The draining device can comprise any device passing through the body, in particular the cover, that is, any device capable of linking the pumping chamber and the outside of the pump in a location defined in advance by design.

[0039] Preferably, the draining device extends facing a wall of the recess for receiving the reservoir, in particular on a wall of the body of the conveying device facing said wall of the recess for receiving the reservoir. Said wall can be a rear wall of the body of the conveying device, that is, the opposite wall of the body of the conveying device from the vaporization and steam distribution device.

[0040] As mentioned above, the liquid conveying device, in particular the peristaltic pump, can comprise one or more sealing elements designed to contain the liquid inside the pumping chamber, in particular in the event of the failure of the liquid circulation member. A sealing element can be positioned between the cover and the rest of the body of the conveying device in order to maintain the seal in the region of the cover. A sealing member can be positioned on the draining device in order to prevent liquid leaking from the draining device. In the event of the failure of the liquid circulation member, the liquid can thus be contained, that is, kept or retained, in the pumping chamber, and does not spread, or only spreads a little, outside the conveying device in an uncontrolled manner, but solely through the draining device. As a result, any failure of the tube of the peristaltic pump can have limited consequences since the liquid remains contained inside the pump without spreading to the outside of the pump, as would normally be the case for pumps known from the prior art.

[0041] The liquid is preferably discharged solely through the draining device, that is, in a clearly defined location and advantageously along a controlled path, the location and advantageously the draining path having been carefully defined in advance. In addition, due to the sealing device, the draining device preferably constitutes the only possible through- point for any liquid that might be inside the pumping chamber. Consequently, the discharging of the liquid solely through the draining device can be guaranteed, regardless of the spatial orientation of the appliance.

[0042] Electrical or electronic component

[0043] As stated above, the conveying device can comprise a rotary motor, the pumping chamber containing a rotary shaft of said motor passing through the pump body in contact with the tube, which is deformable by means of one or more rollers. The conveying device can comprise a motor unit separated from the pumping chamber by a separating wall of the body having an opening in which the shaft of the motor extends into the pumping chamber. The conveying device can comprise a sealing element between the motor shaft and the pump body, in particular said separating wall, in order to seal the pumping chamber from the motor unit. Consequently, in the event of the failure of the deformable tube, the liquid cannot escape through the zone situated between the drive shaft, which is a rotatable part, and the body, which is a fixed part relative to the motor unit.

[0044] Preferably, the draining device is arranged in the body on the opposite side from the recess for receiving the motor unit, and in particular extends on the opposite wall of the body from the recess for receiving the motor unit.

[0045] Said sealing element can comprise a lip seal, and preferably a double lip seal. This type of seal, and particularly the double lip seal, can make it possible to ensure a very good seal between a rotary shaft, in this instance the drive shaft, against which the lip or lips of the seal press, and a fixed part, in this instance the pump body, in which the seal is held.

[0046] The liquid conveying device, in particular the peristaltic pump, can comprise one or more electrical connection contacts, in particular electrical solder points, on one of its outer walls, in particular in order to power the rotary motor. Said electrical contacts can at least partially or fully form the electrical or electronic component or components.

[0047] The hairstyling appliance can further comprise one or more electrical or electronic heating elements, in particular elements for heating the vaporization chamber and / or the heating plates of the appliance.

[0048] Inlet and outlet connectors

[0049] The conveying device can comprise an inlet connector suitable for being connected directly or indirectly to the liquid reservoir, in particular for receiving a liquid intake duct connected to the liquid reservoir, and / or an outlet connector suitable for being connected directly or indirectly to the liquid circulation member, in particular for receiving a liquid delivery duct connected to the liquid circulation member.

[0050] The outlet connector, in particular the delivery duct connected to the outlet connector, can be connected on the other side to the vaporization device, and the inlet connector, in particular the intake duct connected to the inlet connector, can be configured to be connected on the other side to the liquid reservoir. Preferably, the inlet and outlet connectors extend from a lateral wall of the body relative to the longitudinal axis of the conveying device.

[0051] The conveying device can comprise one or two sealing elements on the inlet and outlet connectors.

[0052] Said sealing element can be a sealing insert, preferably made from silicone, through which each of said inlet and outlet connectors passes. Advantageously, the insert comprises two orifices, and preferably two holes, each of the orifices receiving one of the connectors. This configuration makes it possible in particular to guarantee the sealing of the chamber, including around the connectors, if said connectors are parts separate from the pump, and for example are not moulded with the pump body or the cover. In addition, this solution can make it possible to remove the connectors without any damage to either the connectors or the pump itself. Using a silicone insert is particularly advantageous and low- cost if the two connectors are situated close to each other and in the same plane forming a surface of the pump, as described in detail below.

[0053] As a variant, the conveying device comprises two sealing elements, each around one of the inlet and outlet connectors. The two sealing elements can be two O-rings. According to this variant, each connector comprises its own O-ring positioned between the connector and the body of the conveying device so as to ensure the sealing of the pumping chamber around the connectors. This solution is particularly advantageous if the connectors are separate from the conveying device and are spaced apart from each other and / or are not in the same plane.

[0054] Advantageously, the inlet and outlet connectors are arranged in the same plane belonging to one and the same outer face of the conveying device, in particular a lateral face relative to the longitudinal axis of the conveying device. This makes it possible to have a particularly compact conveying device the connections of which are grouped together on the same face, thus limiting the length of the ducts necessary at the exit from and entry to the conveying device. Preferably, the inlet and outlet connectors each comprise an elbow, advantageously substantially a 90° elbow. Such connectors can make it easier to incorporate the conveying device by positioning it transversely to the intake and delivery ducts, respectively at the entry to and exit from the conveying device. Seal

[0055] The hairstyling appliance, in particular the discharging device, can comprise a seal between the recess for receiving the reservoir and a recess for receiving the conveying device, in particular between the recess for receiving the reservoir and the conveying device.

[0056] The seal can in particular be situated between the recess for receiving the reservoir and the pump draining device.

[0057] As a variant, the seal can comprise a first portion forming a connecting member fluidically connecting the liquid reservoir and the conveying device, in particular directly connecting the liquid reservoir and the intake duct. The intake duct can extend through a wall of the recess for receiving the reservoir. The seal can further comprise a second portion forming the device for discharging liquid from the appliance between the recess for receiving the reservoir and the conveying device, in particular the pump draining device.

[0058] The seal can be a sealing part extending in a slot of a wall of the recess for receiving the reservoir.

[0059] The seal, in particular the sealing part, can comprise at least one orifice, and preferably two orifices, extending between the recess for receiving the reservoir and the conveying device, in particular the pump draining device.

[0060] As a variant, the seal, in particular the sealing part, can comprise at least two orifices, and preferably three orifices. At least one of the orifices can extend in the first portion of the seal and form a fluid outlet to the conveying device. At least one of the orifices can extend in the second portion of the seal and form an orifice of the discharging device.

[0061] Sealing member

[0062] The hairstyling appliance can comprise, in particular between the recess for receiving the conveying device and the recess for receiving the vaporization and steam distribution device, a sealing member, in particular for preventing the liquid leaking to the vaporization and steam distribution device.

[0063] Said sealing member can be a sealing insert, preferably made from silicone. The sealing member can comprise an opening through which the outlet connector or the delivery duct passes to the vaporization and steam distribution device. The opening preferably tightly fits the outlet connector or delivery duct and / or the appliance comprises a seal in the opening. This makes it possible for the opening to be sealed around the delivery duct. Hairstyling appliance

[0064] The hairstyling appliance can comprise an intake duct fluidically connecting the liquid reservoir and the liquid conveying device, in particular by means of the inlet connector, as mentioned above. The intake duct and / or the inlet connector can particularly extend through a wall of the recess for receiving the reservoir.

[0065] The hairstyling appliance can comprise a first arm and a second arm, in particular articulated with each other by a hinge so as to form a hair shaping iron. The appliance forms for example a straightening iron that allows great ease of use and optimum hairstyling results.

[0066] The housing can be formed by at least part of a first arm. The liquid conveying device and said at least one electrical or electronic component are advantageously incorporated into said first arm, in particular into said housing, in particular into a dedicated recess of said housing, which makes it possible to obtain a relatively compact hairstyling appliance. This configuration can also make it possible to improve the repairability of the appliance, as the hydraulic sub-assembly alone can be replaced, and not a whole arm of the appliance.

[0067] The first arm can comprise a first treatment surface for treating the hair by contact, in particular a heating surface or a surface comprising a heating element. The second arm can comprise a second treatment surface for treating the hair by contact, in particular a heating surface or a surface comprising a heating element.

[0068] The expression “treatment surface” used above denotes any type of surface, regardless of its shape or dimensions, provided that it comes into contact with the hair at least at one point. The treatment surface can equally be continuous, for example formed by a single part, or discontinuous, for example formed by a plurality of parts. The treatment surface can, by way of non-limiting illustration, be:

[0069] - smooth and flat, being formed by a straightening plate for example,

[0070] - smooth and curved, being formed by a mandrel, a roll or a shell for example,

[0071] - undulating, for example comprising a series of hollows and bumps, or

[0072] - irregular, for example comprising spikes or teeth.

[0073] The hairstyling appliance, in particular the housing, can comprise at least one relief, in particular a protrusion, for positioning the liquid conveying device, in particular the peristaltic pump. The hairstyling appliance, in particular the housing, can particularly comprise two reliefs, in particular protrusions, for positioning the liquid conveying device. The positioning reliefs can form stops for outer walls of the body of the conveying device. The conveying device can have a portion configured to extend in the conveying device recess between a wall of the liquid reservoir recess and the positioning reliefs, coming into contact with the wall of the liquid reservoir recess and the positioning reliefs.

[0074] The hairstyling appliance can comprise at least one snap-fastening device for securing the liquid conveying device, in particular the peristaltic pump, in a recess for receiving the conveying device. The snap-fastening device can comprise reliefs protruding from the housing configured to come into contact with the conveying device and snap-fasten to the body thereof, in particular to the portion configured to extend in the conveying device recess between a wall of the liquid reservoir recess and the positioning reliefs.

[0075] Brief description of the drawings

[0076] [Fig 1] is a schematic and partial perspective view of a hairstyling appliance as described by the invention,

[0077] [Fig 2] schematically and partially illustrates the appliance in Figure 1 in another orientation,

[0078] [Fig 3] is a schematic and partial perspective view of the first arm of the appliance in Figure 1,

[0079] [Fig 4] is a schematic and partial longitudinal cross-section of the arm in Figure 3,

[0080] [Fig 5] is a schematic and partial view of the liquid conveying device, taken from Figure 4,

[0081] [Fig 6A] is a schematic and partial perspective view of a peristaltic pump according to the invention,

[0082] [Fig 6B] is a schematic and partial front view of the peristaltic pump in Figure 6A,

[0083] [Fig 6C] is a schematic and partial exploded view of the peristaltic pump in Figure 6A,

[0084] [Fig 7A] is a schematic and partial perspective view of a transverse cross-section of the arm in Figure 5,

[0085] [Fig 7B] is another schematic and partial transverse cross-section of the arm in

[0086] Figure 5, [Fig 8A] is a schematic and partial view of a sealing member, taken from Figure

[0087] 4,

[0088] [Fig 8B] is a top view of Figure 8A.

[0089] Detailed description

[0090] Figures 1 and 2 show a hairstyling appliance 1 and more specifically a straightening iron, comprising a first arm 11 and a second arm 12 connected to each other by a hinge 13 positioned substantially at the end of each of said first arm 11 and second arm 12. The arms are thus movable relative to each other in a rotating movement, and more specifically a gripping movement.

[0091] As can be seen in Figure 3, the first arm 11 comprises a first treatment surface 112 for treating the hair by contact, in this instance a heating plate. The second arm 12 comprises a second treatment surface 122 for treating the hair by contact, which complements the first treatment surface 112. Preferably, the second contact treatment surface 122 is also heating.

[0092] In a manner well known per se, the hinge 13 allows the user to open the straightening iron to introduce a lock of hair between the treatment surfaces 112, 122, and then close the iron on the lock of hair for shaping, generally straightening.

[0093] The hairstyling appliance 1 is further provided with a vaporization and steam distribution device 4. More specifically, the vaporization and steam distribution device 4 comprises vaporization means 41, in this instance a vaporization chamber, visible in Figure 4, and means 42 for diffusing the steam thus produced, towards a lock of hair. The diffusing means 42 can in particular be formed by a series of orifices, as illustrated, or by a diffusing slot or groove. Such elements are well known to a person skilled in the art, and are for example described in detail in EP 2449 909.

[0094] As can be seen in Figure 2, the appliance 1 also comprises a liquid storage device, in this instance a reservoir 3. Preferably, the reservoir 3 is intended to store water. However, it can be envisaged without departing from the scope of the invention that the reservoir 3 can also store a cosmetic product, optionally diluted in water.

[0095] According to the invention illustrated, the reservoir 3 is incorporated into the first arm 11 in a recess 30 therein provided for this purpose. However, it is entirely possible, without departing from the scope of the invention, for the reservoir to be separate from the first arm 11 and the second arm 12. The reservoir can be located at a distance from the first arm 11 and the second arm 12, and be located for example in a remote base (that is, situated at a distance from the iron) connected to one of the arms by a cord that is able to convey the liquid. Such an arrangement is for example described in EP 2 449 912 of the applicant.

[0096] As can be seen in Figure 4, the appliance 1 comprises a housing 111 formed by the first arm 11, the housing comprising in particular the recess 30 for receiving the reservoir. However, although it is not illustrated, it can be envisaged, without departing from the scope of the invention, that the housing is formed by the remote base mentioned above.

[0097] The housing 111 thus forms an enclosure, for example made from plastic, further comprising at least one liquid conveying device 2 and an electrical or electronic component, such as for example a heating element (for example PTC), an electric motor 5 and the associated connections, a temperature sensor, a capacitor, an electronic circuit board, etc. Generally, these elements are very sensitive to any contact with a liquid, and particularly water, and such contact can damage or destroy them, and even lead to a risk of electrocution.

[0098] The housing 111 further comprises a liquid discharging device 114 designed to discharge the liquid in the event of liquid leaking from the liquid conveying device 2, to the recess 30 for receiving the reservoir 3, in particular to the reservoir 3. The discharging device 114 is arranged so that the liquid cannot come into contact with the electrical or electronic component or components.

[0099] In order to supply the vaporization and steam distribution device 4 with liquid, and preferably water, the liquid conveying device 2 illustrated comprises a peristaltic pump 6 and ducts 32, 33. The liquid conveying device 2 additionally comprises a motor 5 connected to the peristaltic pump 6 and suitable for setting in motion the different movable parts of the peristaltic pump 6 and therefore moving the liquid from the reservoir 3 to the vaporization and steam distribution device 4. The electric motor 5 comprises in particular electrical or electronic components 54 on its distal face.

[0100] As can be seen in Figure 5, the housing 111 also comprises two walls 70 for positioning the pump 6, situated on either side of said pump and guaranteeing the position and immobilization in the housing 111 of part of the pump 6 in the appliance 1 between a wall of the recess 30 for receiving the reservoir at the rear of the pump and said positioning walls 70 to the sides of the pump. The housing 111 additionally comprises a snap-fastening device 66 for retaining the pump 6 in the recess 69 for receiving the conveying device 2 in the housing 111, the snap-fastening taking place for example in the region of the inlet connector 61 and outlet connector 62.

[0101] According to the invention illustrated, the conveying device 2 is incorporated into the first arm 11 as can be seen in Figure 4, but without departing from the scope of the invention, it can be at least partially incorporated into the remote base mentioned above if the recess 30 for receiving the reservoir is positioned remotely in a base.

[0102] As can be seen in Figures 4 to 6C, 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 an intake duct 32, in turn connected to the reservoir 3. An outlet connector 62 is arranged on the pump body 60 in order to connect the peristaltic pump to the liquid consuming device 4, by means of a delivery duct 33. More specifically, each of the inlet connector 61 and outlet connector 62 passes through the pump body 60. Part of each of the inlet connector 61 and outlet connector 62 thus protrudes outside the pump, and part of each of the inlet connector 61 and outlet connector 62 protrudes inside the pump, that is, into a chamber 68. The part of the inlet connector 61 and outlet connector 62 protruding outside the pump is then connected respectively to the intake duct 32 and the delivery duct 33, as can be seen in Figure 5. The part of the inlet connector 61 and outlet connector 62 protruding into the chamber 68 is then connected to a deformable tube 63.

[0103] The inlet connector 61 and outlet connector 62 can be positioned on the same face of the pump body 60, even if said face has small dimensions. The inlet connector 61 and outlet connector 62 can be positioned next to each other, as illustrated, or even be in contact with each other, which makes it possible to limit the footprint of the peristaltic pump 6 and simplify the routing of the intake duct 32 and delivery duct 33. The intake duct 32 and the delivery duct 33 are essentially aligned relative to each other, that is, in the same plane and essentially along the same straight line. In addition, each of these ducts enters and exits the peristaltic pump 6 through the same face of the pump, that is through one and the same side. It is thus possible to position the peristaltic pump 6 in a particularly confined and hard- to-access location as only one face of the pump must be accessible in order to connect the intake duct 32 and delivery duct 33 to it.

[0104] As illustrated in Figures 6A to 6C, the pump body 60 also comprises a cover 64 interacting with the pump body 60 to form a chamber 68. The assembly of the different internal components is particularly facilitated. In addition, the peristaltic pump 6 can be removed and refitted as desired, without any damage, for example in order to work on the internal components.

[0105] Figure 6C shows the different components of the peristaltic pump 6. The chamber 68 thus contains a deformable tube 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 tube 63 is fixed and is connected to the inlet connector 61 at one end and to the outlet connector 62 at the other end so as to form a loop. The rotor 65 is situated at the centre of the loop and is rotated by a drive shaft 51 passing through the pump body 60 and connected to an output shaft of the electric motor 5. The rotation of the rotor 65 is guided by a bearing 645 housed in the cover 64. During the rotation of the drive shaft 51, pressing elements 651, such as rollers for example, intermittently squeeze the deformable tube 63, and under the effect of their movement due to the rotation of the rotor 65, this creates an intake phenomenon as well as the movement of the liquid located inside the deformable tube 63. The liquid is therefore taken in on one side of the pump 6 and delivered on the other side. This operation is entirely conventional and characteristic of the peristaltic pumps known to a person skilled in the art, and is not therefore described in greater detail here. The peristaltic pump 6 and the electric motor 5 are both connected to a fastening plate 52, for example by means of screws 53.

[0106] As can be seen in Figure 6C, the peristaltic pump 6 comprises a plurality of sealing elements 661, 662, 663.

[0107] More specifically, the peristaltic pump 6 comprises a first sealing element 661 positioned between the drive shaft 51 and the pump body 60. More specifically, the first sealing element 661 is a lip seal, and preferably a double lip seal. Such a seal is very effective in ensuring complete sealing against any liquid between a rotating part, in this instance the drive shaft 51, and a fixed part, in this instance the pump body 60 (or optionally the cover 64). Thus, due to the presence of this first sealing element 661, any liquid that might be located inside the chamber 68, for example in the event of the failure of the deformable tube 63, or the accidental disconnection of the inlet and / or outlet connector, cannot escape outside the chamber to the motor 5, that is, outside the peristaltic pump 6, through the gap, that is the functional clearance between the drive shaft 51 and the pump body 60. The first sealing element 661 guarantees both the satisfactory rotation of the drive shaft 51 relative to the pump body 60 (or optionally relative to the cover) and the seal between these two parts. According to the embodiment illustrated, the peristaltic pump 6 also comprises a second sealing element 662 positioned between the cover 64 and the rest of the pump body 60, as can be seen in Figure 6C. This second sealing element 662 is advantageously formed by a circular cross-section seal. The second sealing element 662 is then positioned around the chamber 68, close to the rim, that is, close to the periphery of the cover 64 and the rest of the pump body 60. As can be seen in Figure 6C, the second sealing element 662 follows the outline of the pump body 60 and the cover 64, and therefore takes its shape. The second sealing element 662 almost forms a loop on itself, but it does have two ends, that is, it is not closed on itself. Once it is installed between the pump body and the cover, the second sealing element 662 thus substantially takes the form of a horseshoe, or even an upper case Greek letter omega. The presence of this second sealing element 662 thus makes it possible to ensure the seal between the pump body 60 and the cover 64, while allowing the removal and refitting of the cover 64. However, it will be noted that this second sealing element 662 does not travel completely around the pump body 60. In other words, the second sealing element is not situated on the entire periphery of the chamber 68, but only on 60% and preferably 80% of the periphery of the chamber 68. The remaining portion of the periphery is then closed by a third sealing element 663, as described in greater detail below, which makes it possible to ensure a complete seal between the pump body 60 and the cover 64, and therefore the sealing of the chamber 68.

[0108] As can be seen in Figure 6C, the peristaltic pump 6 also comprises a third sealing element 663. Said third sealing element comprises an insert through which the inlet connector 61 and outlet connector 62 pass. The insert is preferably made from silicone, or any other material that can ensure a seal. The insert then comprises two orifices allowing the inlet connector 61 and outlet connector 62 to pass through. The insert is made from a sufficiently elastic material to ensure a seal around said inlet connector 61 and outlet connector 62. The insert is then in contact with the inlet connector 61 and outlet connector 62, the pump body 60, and also the cover 64, as can be seen in Figure 6C. In association with the second sealing element 662 described above, this insert notably makes it possible to complete the sealing of the chamber 68, that is, to complete the seal between the cover 64 and the pump body 60 by closing the periphery of the chamber.

[0109] Due to the combined presence of the sealing elements described above, namely the first sealing element 661, the second sealing element 662, and the third sealing element 663, the chamber 68 is thus sealed. Consequently, if liquid accidentally escaped from the deformable tube 63 and was located in the chamber 68, the liquid, generally water, would be trapped in the chamber 68 and would not be able to escape from it. This makes it possible to obtain a particularly safe peristaltic pump as it is entirely sealed, that is, it cannot allow liquid to escape, even in the event of the failure of its deformable tube.

[0110] The pump 6 further comprises a draining device 67 designed to drain the liquid from the chamber 68 to the outside of the peristaltic pump 6 along a controlled path in the event of the failure of the deformable tube 63 of the peristaltic pump 6. This draining device 67 is particularly effective when it is associated with an appliance 1 that comprises a liquid discharging device 114.

[0111] The draining device 67 is arranged through the closing cover 64. This structure makes it possible to propose a peristaltic pump 6 the assembly and / or potential maintenance of which are facilitated, due to the presence of the cover 64, while guaranteeing the controlled discharge of any liquid that might be inside the chamber 68.

[0112] The liquid discharging device 114 comprises two orifices 1141 positioned next to each other. Each of the orifices 1141 connects together the recess 30 for receiving the reservoir 3 and the recess 69 for receiving the device for conveying liquid in the housing. Using two separate orifices makes it possible to ensure a sufficient discharge flow rate and guarantee a minimum flow rate if one of the orifices 1141 was blocked. Nonetheless, a single orifice or more than two orifices could be provided. Here, each orifice 1141 is a hole the diameter of which is in particular substantially equal to 1.2 mm. The discharge area possible is thus approximately 2.26 mm2. The holes are approximately 2.5 mm apart.

[0113] The draining device 67 of the peristaltic pump 6 communicates with the discharging device 114. As can be seen in Figures 5, 7A and 7B, the draining device 67 is situated facing the discharging device 114. In other words, the draining device 67 is situated opposite the discharging device 114. More specifically, the draining device 67 comprises two holes 671, and the discharging device 114 also comprises two orifices 1141, each of the holes 671 belonging to the draining device 67 extending facing, that is opposite, an orifice 1141 of the discharging device 114. Nonetheless, a different number of orifices could be provided. For example, the draining device could comprise a single large hole and the discharging device two smaller holes, both opposite the large hole, or vice versa. Here, each of the holes 671 has a diameter of approximately 1.2 mm, which corresponds to a discharge area of 2.26 mm2. The holes are preferably 2.5 mm apart. When liquid is accidentally located in the chamber 68 of the pump 6, it is thus possible to control the flow path of the liquid to a precise, considered location selected in advance. For example, due to the location of the draining device 67, when the liquid flows, it can be kept away from any electrical or electronic components.

[0114] Advantageously, the discharge areas of the draining device 67 and the discharging device 114 are substantially identical and of the order of 2.26 mm2, which guarantees the complete flow of any liquid that might be located in the chamber 68 of the pump 6 without a funnel effect.

[0115] The draining device 67, in particular the two holes 671, is transversely offset relative to the longitudinal axis X of a shaft of the motor 5. In the example illustrated, the straight line passing through the two holes 671 of the draining device 67 is separated from the shaft of the rotary motor by a distance d’ of 4 mm.

[0116] The two holes 671 of the draining device 67 each extend along an axis parallel to the longitudinal axis X of the shaft of the motor 5.

[0117] In the embodiment illustrated, the housing 111 comprises a seal 20 extending between the recess 30 for receiving the reservoir 3 and the recess 69 for receiving the liquid conveying device. The seal 20 is in particular slid manually into the housing 111 at the time of manufacture. Sealing is guaranteed by the tight fit of the elements in the housing 111, in particular the pressing of the rear of the conveying device on the seal 20.

[0118] In the example illustrated, a first portion 201 of the seal 20 corresponds to the discharging device 114. This means that the seal 20 comprises two orifices 1141 situated facing the holes 671 of the draining device 67. The junction between the holes 674 of the draining device 67 and the orifices 1141 of the seal 20 is sealed.

[0119] As a result, in the event of the failure of the deformable tube of the peristaltic pump 6 of the appliance 1, the liquid would then be discharged in a controlled manner, defined by design, that is in a considered manner, solely through the discharging device 114, and via the draining device 67 of the peristaltic pump 6, so that the liquid cannot come into contact with any electrical or electronic components situated inside the housing 111. In other words, the electrical or electronic components are protected from any liquid, even in the event of a failure inside the peristaltic pump 6, which considerably improves the safety of the appliance 1, both for the appliance itself (its electrical or electronic components) and for the user (risk of electrocution).

[0120] A second portion 202 of the seal 20 comprises an orifice 2021 that makes it possible to establish a sealed fluidic connection between the reservoir 3 and the intake duct 32 or the inlet connector 61.

[0121] As can be seen in Figures 8 A and 8B, the housing 111 further comprises a sealing member 21, in particular in the form of a sealing insert, for example made from silicone, in particular substantially Z-shaped. The sealing member 21 is arranged so as to separate the recess 69 for receiving the conveying device from a recess for receiving the vaporization and steam distribution device 692. This makes it possible to separate and seal the pump recess 69 comprising fluidic connections from the vaporization and steam distribution device with its corresponding electrical connections, in particular in relation to the heating element of the vaporization means 41.

[0122] The sealing member 21 also comprises an opening 210 through which the outlet connector 62 or the delivery duct 33 passes to the vaporization and steam distribution device 4. The opening 210 preferably tightly fits the outlet connector 62 or delivery duct 33 and / or the appliance 1 comprises a seal in the opening 210. This makes it possible for the opening 210 to be sealed around the delivery duct 33.

[0123] The distal face of the motor 5 comprising the electrical or electronic components 54 is preferably separated from the sealing member 21 by a sufficient space E to allow the establishment of the related electrical connections.

[0124] The invention is not limited to the example that has just been described. In one variant, not illustrated, the peristaltic pump comprises inlet and outlet connectors arranged in different planes, on opposite outer faces of the conveying device for example.

[0125] In another variant, not illustrated, the liquid discharging device is an element, in particular a seal, separate from a connecting member fluidically connecting the liquid reservoir and the intake duct. This means that the discharging device and said connecting member are two different parts of the appliance, in particular two seals.

Claims

Claims1. Hairstyling appliance (1) comprising- a housing (111) having a recess (30) for receiving a liquid reservoir (3),- a device for conveying the liquid (2; 6; 32; 33) coming from the liquid reservoir (3),- a liquid discharging device (114) designed to discharge the liquid to the recess (30) for receiving the liquid reservoir in the event of liquid leaking from the liquid conveying device (2; 6; 32; 33), and- at least one electrical or electronic component (54), said discharging device (114) being arranged so that the electrical or electronic component (54) is fluidically isolated from the liquid in the event of liquid leaking from the liquid conveying device (2; 6; 32; 33).

2. Hairstyling appliance according to the preceding claim, wherein the liquid discharging device (114) comprises at least one through-orifice (1141), and preferably two through-orifices (1141), connecting together the recess (30) for receiving the reservoir (3) and a recess (69) for receiving the conveying device (2; 6; 32; 33) in the housing (111).

3. Hairstyling appliance according to the preceding claim, wherein the orifice or orifices (1141) are holes the diameter of which is between 0.5 mm and 4 mm, preferably between 1 mm and 1.5 mm.

4. Hairstyling appliance according to any one of the preceding claims, wherein the liquid conveying device (2) comprises a peristaltic pump (6), the peristaltic pump comprising a pump body (60) defining a pumping chamber (68) accommodating a deformable tube (63) forming a member for circulating the liquid and suitable for containing a liquid to be moved between a liquid inlet (61) fluidically connected to the reservoir (3) and a liquid outlet (62), and a liquid draining device (67) designed to drain the liquid from the chamber (68) to the outside of the pump (6) in the event of the failure of the deformable tube (63) of the pump in the pumping chamber (68), said draining device (67) communicating with said discharging device (114).

5. Hairstyling appliance according to the preceding claim, wherein the pump body (60) comprises a cover (64) for closing the pumping chamber (68) and the liquid draining device (67) is arranged through the closing cover (64).

6. Hairstyling appliance according to any one of the preceding claims, wherein the conveying device (2) comprises an inlet connector (61) suitable for receiving an intake duct (32) connected to the liquid reservoir (3).

7. Hairstyling appliance according to any one of the preceding claims, wherein the discharging device (114) comprises a seal (20) between the recess (30) for receiving the reservoir (3) and a recess (69) for receiving the conveying device (2; 6; 32; 33), in particular the pump draining device (67).

8. Hairstyling appliance according to the preceding claim, wherein the seal (20) is a sealing part extending in a slot of a wall of the recess (30) for receiving the reservoir (3), the sealing part comprising at least one orifice (1141), and preferably two orifices (1141), extending between the recess (30) for receiving the reservoir (3) and the conveying device (2; 6; 32; 33) in particular the pump draining device (67).

9. Hairstyling appliance according to any one of the preceding claims, wherein the appliance (1) comprises a seal (20) between the recess (30) for receiving the reservoir (3) and a recess (69) for receiving the conveying device (2; 6; 32; 33), the seal (20) comprising: a first portion (202) forming a connecting member fluidically connecting the liquid reservoir (3) and the conveying device (2; 6; 32; 33), in particular an intake duct (32) extending through a wall of the recess (30) for receiving the reservoir (3), and a second portion (201) forming the discharging device (114) between the recess (30) for receiving the reservoir (3) and the conveying device (2; 6; 32; 33), in particular the pump draining device (67).

10. Hairstyling appliance according to the preceding claim, wherein the seal (20) is a sealing part extending in a slot of a wall of the recess (30) for receiving the reservoir (3), the sealing part comprising at least two orifices (1141; 2021), and preferably three orifices (1141; 2021), at least one of the orifices (2021) extending in the first portion (202) and forming a fluid outlet to the conveying device (6; 32) and at least one of the orifices (1141) extending in the second portion (201) and forming an orifice of the discharging device (114).

11. Hairstyling appliance according to any one of the preceding claims, comprising a first arm (11) and a second arm (12) articulated with each other by a hinge (13) so as to form a hair shaping iron (1), the housing (111) being formed by at least part of one of the arms12. Hairstyling appliance according to one of the preceding claims, wherein the appliance (1) comprises at least one relief (70) for positioning the conveying device (2), in particular the peristaltic pump (6).

13. Hairstyling appliance according to any one of the preceding claims, wherein the appliance (1) comprises at least one snap-fastening device (66) for securing the liquid conveying device (2), in particular the pump (6), in a recess (69) for receiving the conveying device (2).

14. Hairstyling appliance according to any one of the preceding claims, comprising a sealing member (21) between the recess (69) for receiving the conveying device (2) and the recess for receiving the vaporization and steam distribution device (4).

15. Hairstyling appliance according to any one of the preceding claims, wherein the conveying device (2; 6; 32; 33), in particular the peristaltic pump (6), comprises one or more sealing elements (661; 662; 663) designed to contain the liquid inside the pumping chamber (68) in the event of the failure of the deformable tube (63).

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