EP3902441B1 - Hairstyling device with a cooled electronic module - Google Patents

Hairstyling device with a cooled electronic module Download PDF

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Publication number
EP3902441B1
EP3902441B1 EP19828790.6A EP19828790A EP3902441B1 EP 3902441 B1 EP3902441 B1 EP 3902441B1 EP 19828790 A EP19828790 A EP 19828790A EP 3902441 B1 EP3902441 B1 EP 3902441B1
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EP
European Patent Office
Prior art keywords
handle
blower
blowing head
air flow
electronic module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19828790.6A
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German (de)
French (fr)
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EP3902441A1 (en
Inventor
Matthieu FUIN
Jérémy DELHOM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEB SA
Original Assignee
SEB SA
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Filing date
Publication date
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Publication of EP3902441A1 publication Critical patent/EP3902441A1/en
Application granted granted Critical
Publication of EP3902441B1 publication Critical patent/EP3902441B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands

Definitions

  • the present invention relates to the general technical field of hairdressing appliances, for example for domestic use, and more specifically to the field of electric hairdressing appliances designed to blow a flow of air in order to dry and/or facilitate styling hair.
  • Hairdressing appliances for example of the hair dryer type, have been known for a long time, designed to allow a user to dry and/or shape their hair by blowing a flow of air towards the hair.
  • known hairdressing devices include a blowing head supplied with air by a motorized fan unit, as well as generally a heating element making it possible to obtain a flow of hot air to facilitate drying of the hair.
  • the objects assigned to the invention therefore aim to remedy these drawbacks and to propose a new hairdressing device which, while being compact in construction, has improved reliability.
  • Another object of the invention aims to propose a new hairdressing device of particularly simple construction.
  • the hairdressing appliance 1 is typically intended for use in a domestic setting by a user lacking particular professional skills in hairdressing, that is to say both in terms of drying and styling, hair shaping.
  • the hairdressing device 1 is preferably designed to be grasped and manipulated by hand, it is therefore advantageously a manual hairdressing device, preferably portable.
  • the hairdressing appliance 1 forms a hair dryer (or hair dryer), which allows a user to dry their wet or damp hair by blowing a flow of forced, hot or cold air towards the hair, and to facilitate shaping of the hair.
  • the invention is however not limited to this specific embodiment and it is for example entirely possible that the hairdressing device forms a blowing hairbrush or any other hairdressing appliance with a function involving blowing a flow of air onto the user's hair, and which could be more specifically used for styling purposes, for example in direct contact with the hair (brushing, smoothing, etc.).
  • the hairdressing appliance 1 comprises a blower module 2 designed to generate a (forced) air flow, and a blower head 3, via which the air flow generated by the blower module 2 is directed out of the hairdressing appliance 1 so that it can be projected towards the user's hair.
  • the blowing head 3 is typically provided with at least one air outlet, through the opening of which the air flow generated by the blowing module 2 is directed out of the hairdressing appliance 1 .
  • the hairdressing appliance 1 also comprises a handle 4 (or handle) for manual gripping, intended to be grasped by the user to manipulate the hairdressing appliance 1, and to which the blowing head 3 is connected.
  • the handle 4 extends between a first end 5 and an opposite second end 6, preferably longitudinally along a first axis A-A'.
  • the handle 4 is formed of a generally tubular part (for example of circular or elliptical average section, constant or not), shaped and dimensioned to ensure good grip by the user.
  • Said blowing head 3 extends the handle 4 from the second end 6, and thus preferably forms an end part of the hairdressing appliance 1, as in the case of the preferred embodiment illustrated in the figures.
  • the blowing head 3 is preferably designed to remain permanently attached to the handle 4, the blowing head 3 thus not being provided (in normal use ) to be dissociated from the handle 4 of the hairdressing appliance 1 by the user.
  • blower module 2 of the hairdressing appliance 1 is arranged within the handle 4 or is assembled to the handle 4 at the first end 5 of the latter, as illustrated in the figures.
  • blower module 2 so as to generate an air flow with a high flow rate, economically, and without impacting the general size of the blower head 3 and the handle 4.
  • an arrangement of the blower module 2 and the blower head 3 at each of the ends 5, 6 of the handle 4 advantageously makes it possible to better balance the weight of the hairdressing appliance 1, by a distribution of the masses on both sides. other of the handle 4, which contributes to the comfort of use of the latter.
  • the handle 4 can advantageously comprise a guide channel 7 for the air flow generated by the blower module 2 towards the blower head 3.
  • Said guide channel 7 advantageously channels said air flow through the handle 4, typically in the direction of the first end 5 of the handle 2 towards the second end 6 of the latter, as illustrated as an example in Figure 5 .
  • the blower module 2 of the hairdressing appliance 1 preferably comprises a motor-fan group 8, itself comprising an electric motor 9.
  • the motor-fan group 8 may comprise a classic axial fan with propeller or helicoid.
  • the motor-fan group 8 can advantageously comprise a fan of the helico-centrifugal or centrifugal type.
  • the use of such a helico-centrifugal or centrifugal fan advantageously makes it possible to obtain, with equivalent dimensions, a high internal pressure with an air flow rate substantially similar to that of a propeller or helical fan, but with a lower rotation speed and therefore less noise generated by the motor-fan group 8.
  • the electric motor 9 of the motor-fan group 8 is a brushless electric motor (so-called “ brushless ” motor or self-controlled synchronous machine with permanent magnets).
  • a brushless electric motor 9 is generally more robust, more reliable and lighter than a conventional brushed electric motor. Less noisy and more energy efficient, it also offers greater flexibility and better precision in adjusting its rotation speed.
  • the motor-fan group 8 advantageously comprises a fan 10 of the centrifugal type, and its electric motor 9 is a brushless electric motor, as proposed above.
  • the blower module 2 further comprises an internal working chamber 11 in the shape of a volute, within which the motor-fan group 8 is housed.
  • Said working chamber 11 can, as illustrated in Figure figure 5 , be defined by the internal walls of two half-shells 12, 13 assembled together (for example, by screwing) and secured to the handle 4 at the level of the first end 7 of the latter.
  • the blower module 2 is provided with an air inlet 14, through which the ambient air is sucked axially by the fan 10 within the working chamber 11, and an air outlet which is advantageously connected to the channel guide 7 of air from the handle 4 and by which the sucked air is discharged radially out of the working chamber 11.
  • the blower module 2 further preferably comprises a grid 15 (possibly removable and repositionable) for protecting the air inlet 14 of the working chamber 11.
  • the hairdressing appliance 1 also includes a heating element 16 designed to raise the temperature of the air flow generated by the blower module 2.
  • the heating element 16 can be arranged within the blowing head 3 or within (i.e. inside) of handle 4 of the latter. More advantageously, the heating element 16 is arranged (at least in part) within the handle 4, and even more advantageously within the guide channel 7 of the handle 4, as in the embodiment preferential illustrated in the figures, so as to be interposed in the air flow generated by the blower module 2.
  • a configuration makes it possible in particular to reduce the bulk and weight of the blower head 2, and to simplify the design of the latter.
  • the heating element 16 comprises at least one electrical heating resistance formed of a winding of a metallic conductive wire (for example, nichrome) around an insulating core.
  • the heating element 16 is more precisely in the form of a winding of a metallic conductive wire (not illustrated) around an insulating core 17 (for example, made of mica) of cruciform section and provided, at its ends, with fixing fins.
  • the hairdressing appliance 1 further comprises a thermal insulator 18, for example a tubular part with a circular base, within which the heating element 16 is mounted, and which in particular makes it possible to protect the user from the risk of burns by limiting the heating of the handle 4.
  • a thermal insulator 18 for example a tubular part with a circular base, within which the heating element 16 is mounted, and which in particular makes it possible to protect the user from the risk of burns by limiting the heating of the handle 4.
  • the interior wall of the tubular thermal insulator 18 can advantageously define all or part of the guide channel 7 of the air flow mentioned above.
  • the blowing head 3 is fixedly mounted relative to the handle 4. In this case, the blowing head 3 is then preferably provided with a single air outlet.
  • the blowing head 3 is, on the contrary, mounted movable relative to the handle 4.
  • the blowing head 3 can then, for example, be provided with a single air outlet.
  • the mobile nature of the head blower 3 then allows for example to modify the direction of the air flow blown by the hairdressing appliance 1, depending on the position of the blowing head 3 relative to the handle 4.
  • the blowing head 3 is provided, not with a single air outlet, but with at least a first air outlet 19 and a second air outlet 20, distinct (and therefore different , not combined) from each other.
  • the blowing head 3 can then advantageously be mounted movable relative to the handle 4 between at least a first position in which the air flow generated by the blowing module 2 is blown by the blowing head 3 via the first air outlet 19, and a second position in which said air flow is blown by the blowing head 3 via the second air outlet 20 of the latter.
  • the hairdressing appliance 1 is thus advantageously designed and configured to allow, by a movement (that is to say by a modification of the arrangement, the positioning) of the blowing head 3 relative to the handle 4, to alternately select one or the other of the first 19 and second 20 air outlets of the blowing head 3 through which the air flow will be blown by the blowing head 3.
  • the blowing head 3 can be mounted movable to rotate relative to the handle 4, around a second axis B-B' of rotation, as in the embodiment illustrated in the figures.
  • the blowing head 3 is then mounted relative to the handle 4 according to a pivot connection, so as to be able to rotate relative to the handle 4.
  • the hairdressing appliance 1 can thus advantageously be designed and configured to allow the user, for example pivoting of the blowing head 3 relative to the handle 4, to alternately select one or the other of the first 19 and second 20 air outlets of the blowing head 3 through which the air flow will be blown by the blower head 3.
  • the blowing head 3 is mounted to rotate relative to the handle 4 around said second axis B-B', which coincides with the first axis AA' of extension of the handle 4, as in the embodiment illustrated in figures.
  • the second axis BB' of rotation could be parallel to said first axis AA' (and more or less offset from the latter).
  • the kinematics of the blowing head 3 are thus simple and reliable, and allow intuitive handling of the hairdressing appliance 1 by the user.
  • the second axis BB' intersects said first axis AA' at an angle typically between 5 and 15°.
  • blowing head 3 could, according to an alternative variant not illustrated in the figures, be mounted movable in translation relative to the handle 4, for example along an axis of translation which would be parallel or coincident with the first axis A-A' of extension of the handle 4, or even still along an axis of translation which would on the contrary be orthogonal to said first axis A-A' of extension of the handle 4. It could then be for example a movement in pure translation, of the slide connection type, or further helical translational movement of the blowing head 3 relative to the handle 4.
  • the blowing head 3 is provided, as mentioned above, with at least a first air outlet 19 and a second air outlet 20, these preferably have openings of different geometries.
  • the useful air passage section of the opening of the first air outlet 19 is then defined by a contour (or a plurality of contours) of shape different from the shape of the contour (or of the plurality of contours) which respectively defines the useful air passage section of the opening of the second air outlet 20.
  • the air flow blown by the blowing head 3 will therefore affect a different profile depending on the outlet air 19, 20 selected, so that the user can use the hairdressing appliance 1 in at least two different blowing configurations.
  • the first air outlet 19 and second air outlet 20 are advantageously designed to blow, project, two air flows of different profiles, respectively a first air flow and a second air flow, each of the latter allowing the user to perform a different operation on their hair.
  • the first airflow may correspond to a drying air flow, with a wide and diffuse profile, and a high flow rate (for example, of the order of 70 m 3 /h), to allow the user to quickly dry their hair.
  • the second air flow may correspond to a shaping air flow, with a concentrated and narrow profile, and a lower flow rate (for example, of the order of 50 m 3 /h), to allow the user to precisely choose the location of their hair towards which the second air flow will be blown. In this way, the user can skillfully and easily shape their hair, such as waves, or on the contrary straightening.
  • the first air outlet 19 has an opening of generally circular shape ( figure 2 ), while the second air outlet 8 ( figures 1 And 3 ) has an opening of generally oblong, elongated shape.
  • the hairdressing appliance 1 can be used in a conventional manner for drying wet hair, the first flow of air blown by the blowing head 3 having, in the vicinity of the first air outlet 19, a substantially cylindrical or conical profile.
  • the hairdressing appliance 1 can then be used to dry the hair while facilitating the shaping of the hair (for example, to perform a “ blow dry ”), the second flow of air blown by the blowing head 3 forming, in the vicinity of the second air outlet 20, an air blade which allows the user to choose precisely the place on their hair where to apply the air flow to achieve shaping.
  • the hairdressing appliance 1 advantageously allows the user to choose between at least a first mode of use (for example drying) and a second mode of use (for example shaping the hair) of the hairdressing appliance 1 by modifying the arrangement or position of the blowing head 3 relative to the handle 4 (and preferably by a simple rotation of the blowing head 3 relative to the handle 4), which allows to select, in a particularly simple and rapid manner, an air flow profile adapted to the operation to be carried out on the hair.
  • a first mode of use for example drying
  • a second mode of use for example shaping the hair
  • the blowing head 3 comprises an external casing 21 (or fairing) which defines the external shape and contour of the blowing head 3 and, advantageously, the external shape and contour of an end part of the device hairdressing device 1, which is connected to the handle 4 of said hairdressing device 1.
  • the external envelope 21 can optionally be shaped to give the blowing head 3 a particular aesthetic appearance, for example a generally cylindrical appearance as illustrated by example in figures 1 to 5 .
  • said external envelope 21 is advantageously shaped to allow manual gripping by the user, so that the latter can print directly by hand on said external envelope 21 (and therefore on the head of blowing 3), a pivoting movement around the second axis B-B' of rotation of the blowing head 3 relative to the handle 4, to select one or the other of said first 19 and second 20 air outlets from the head blowing, and therefore the corresponding operating mode of the hairdressing appliance 1.
  • the blowing head 3 comprises a nozzle body 22 to guide the air flow out of the hairdressing appliance 1, towards the user's hair.
  • the nozzle body 22 is advantageously embedded in said external envelope 21, formed for example of half-shells assembled by snap-fastening or screwing. Rotation, by the user, of the outer casing 21 of the blowing head 3 around the second axis BB' thus causes the nozzle body 22 to rotate jointly around said second axis B-B'.
  • the external envelope 21 of the blowing head 3 extends generally longitudinally along a third axis CC' orthogonal to a median plane of the blowing head 3, said blowing head 3 being arranged relative to the handle 4 so that the second axis BB' of rotation of the blowing head 3 coincides with the first axis AA' of extension longitudinal of the handle 4, and that said first AA' and second BB' axes are inscribed in the median plane of the blowing head 3.
  • the external envelope 21 therefore extends advantageously along said third axis CC' which is orthogonal to the times to the first axis AA' of longitudinal extension of the handle 4 and to the second axis BB' of rotation of the blowing head 3, and over a substantially equal average length on either side of said first AA' and second BB' axes .
  • this particular arrangement advantageously contributes to a good general balance and to good handling of the hairdressing device 1 by the user.
  • the nozzle body 22, advantageously monolithic, itself extends preferentially along the third axis CC' of longitudinal extension of the blowing head 3 between, on the one hand, a first end of the nozzle forming the first outlet d air 19 of the blowing head 3 (which advantageously has an opening of generally circular shape, as mentioned above) and, on the other hand, a second opposite end of the nozzle forming, for its part, the second outlet of air 20 of the blowing head 3 (which advantageously has an opening of generally oblong, elongated shape, in a direction perpendicular to the second axis BB' of the blowing head 3).
  • the first 19 and second 20 air outlets of the blowing head 3 are thus arranged on either side of the second axis BB' of rotation of the blowing head 3 relative to the handle 4.
  • the passage of the blowing head 3 from said first position to said second position then advantageously corresponds to a rotation of said blowing head 3 by an angle of 180° around said second axis B-B'. This particular arrangement contributes to practical and particularly intuitive handling of the hairdressing appliance 1 by the user.
  • the hairdressing appliance 1 also comprises a deflector 23 for guiding the air flow generated by the blower module 2 from the guide channel 7 of the handle 4 alternately towards one or the other of said first 19 and second 20 air outlets, depending on the position occupied by the blowing head 3 mounted to pivot relative to the handle 4.
  • the deflector 23 preferably comprises a bent tubular element 24, fixedly mounted relative to the handle 4 and extending the air guide channel 7 called handle 4 along the first axis AA' of extension of the handle 4.
  • the blowing head 3 advantageously rotates around the bent tubular element 24 of the deflector 23, when it passes from one to the other of said first and second positions.
  • the nozzle body 22 advantageously comprises an air inlet orifice 25, of dimensions combined with those of the bent tubular element 24 of the deflector, and through which said bent tubular element 24 enters the nozzle body 22, along the second axis BB' of rotation of the blowing head 3.
  • the bent tubular element 24 and the nozzle body 22 are advantageously configured and arranged relative to each other so that, when the head blower 3 occupies said first position, the bent tubular element 24 directs the air flow in the nozzle body 22 towards the first nozzle end forming the first air outlet 19 of the blower head 3, all by preferentially preventing any air leakage towards the second opposite nozzle end.
  • the bent tubular element 24 and the nozzle body 22 are advantageously configured and arranged relative to each other so that, when the blowing head 3 occupies said second position (in this case, at the following a rotation of the blowing head 3 by an angle of 180° around the second axis B-B'), the bent tubular element 24 then directs the air flow in the nozzle body 22 in the direction of the second nozzle end forming the second air outlet 20 of the blowing head 3, while preferentially preventing any air leakage towards the first opposite nozzle end ( Figure 5 ).
  • the deflector 23 (and in particular the bent tubular element 24 of the latter) and the nozzle body 22 are advantageously shaped and arranged to subject the air flow coming from the air guide channel 7 of the handle 4 a 90° deflection in the direction of one or the other of the first 19 and second 20 air outlets.
  • blowing head of the hairdressing appliance can obviously be envisaged, in particular in the case where the blowing head only comprises a single air outlet and does not is also not mounted movable relative to the handle of the hairdressing appliance.
  • the hairdressing device 1 also comprises an electronic module 26.
  • the electronic module 26 is advantageously designed to interact (directly or indirectly) with all or part of the different functional organs that may include the hairdressing appliance 1.
  • This is typically a card, an electronic circuit, a printed circuit (“ PCB ”) or a set of electrical, electronic or electromechanical components, internal to the hairdressing appliance 1.
  • the electronic module 26 can be intended to ensure a particular electrical power supply mode (with, for example, a filtering, transformation or current rectification), to ensure control, command or even regulation of the operation of one and/or the other of the functional organs of the hairdressing appliance 1.
  • said electronic module 26 may include components such as an electric battery, a display, one or more microcontroller(s), etc.
  • the electronic module 26 can possibly be connected to a certain number of sensors and sensors distributed in the hairdressing appliance 1 and intended to measure, to monitor, physical quantities linked to the operation of the latter (temperatures, electrical voltages and intensities, speeds / air flow rates, rotation speed of the fan 10 of the blower module 2, etc.), in order to control in return, in an optimal manner, the operation of the different functional organs of the hairdressing appliance 1.
  • the electronic module 26 is more specifically designed to ensure the piloting or monitoring of the operation of the hairdressing appliance 1.
  • the electronic module 26 can be designed to control the operation of the heating element 16, and understand in this respect a circuit electrical power control and/or specific regulation (power, temperature, etc.) of said heating element 16.
  • the electronic module 26 is more particularly designed to control the operation of the blower module 2 of the hairdressing appliance 1. Even more preferably, the electronic module 26 is designed to only control the operation of said blower module 2.
  • the control of said brushless electric motor 9 can thus be advantageously ensured by the electronic module 26.
  • the electronic module 26 can be designed to ensure in particular the switching of the electric current in the stator windings (phase control) of the motor as a function of data coming from position sensors (for example, Hall effect), the self-regulation of the rotation speed, etc.
  • said electronic module 26 is arranged in the blowing head 3 of the hairdressing appliance 1, preferably outside the air flow circulating within the blowing head 3.
  • the blowing head 3 may comprise a dedicated compartment 27, capable of receiving said electronic module 26.
  • Such an arrangement contributes to limiting the general size of the hairdressing appliance 1, in particular in the case where the electronic module 26 is designed to control the operation of the blower module 2 and/or the heating element 16 and that the latter are arranged outside the blowing head 3.
  • blowing head 3 is mounted movable relative to the handle 4 and, in particular, in the case where the blowing head 3 is mounted movable to rotate relative to the handle 4 in accordance with the preferred embodiment illustrated in the figures, it can then prove difficult to ensure a simple and robust electrical connection between, on the one hand, the heating element 16 and/or the blower module 2 arranged outside the blower head 3 (or any other functional organ of the hairdressing device 1 which would be connected to the electronic module 26 and which would be arranged outside the head of blowing 3) and, on the other hand, the electronic module 26 which is housed in the blowing head 3.
  • blowing head 3 will then preferably be mounted movable relative to the electronic module 26 housed within it, so that a movement, a change of position, of the blowing head 3 relative to the handle 4 does not occur. does not affect the respective position of the electronic module 26.
  • a hairdressing device comprising a manual gripping handle, a blowing head connected to said handle and an electronic module, which electronic module is housed within said blowing head, which is itself mounted mobile relative to said electronic module, constitutes as such a distinct invention in its own right, independently of the other characteristics described here.
  • the electronic module 26 is thus advantageously housed and arranged within the blowing head 3 so as to remain immobile relative to the blower module 2 and/or to the heating element 16 during the rotation of the blowing head 3 around the second axis B-B'.
  • the nozzle body 22 can be provided with an additional orifice 28, which is opposite the air inlet orifice via which the bent tubular element 24 of the deflector 23 enters the nozzle body 22 At the level of said additional orifice 28, a portion of the bent tubular element 24 is flush with or projects out of the nozzle body 22 to which the electronic module 26 can be fixed, directly or via a specific support 29.
  • other suitable mounting configurations could be considered.
  • the electronic module 26 could be mounted on the back of the bent tubular element 24 of the deflector 23.
  • the electrical connection between the heating element 16 and/or the blower module 2 (or any other functional organ of the hairdressing appliance 1 which would be connected to the electronic module 26 and which would be arranged outside of the blowing head 3) and the electronic module 26 housed in the blowing head 3 can advantageously be produced very simply, using for example conventional electrical conductor wires (not shown), without risk of damaging the electrical wires by twisting or even without requiring the use of complex mobile electrical connection means (of the rotating connector connection type, for example).
  • the manufacturing cost of the hairdressing device 1 is thus limited and its reliability increased.
  • the electronic module 26 Being housed within the blowing head 3, and although preferably arranged outside the air flow circulating through the latter, the electronic module 26 is likely to see its temperature increase significantly when the air flow generated by the module blower 3 is heated by the heating element 16 before being blown out of the device 1 by the blowing head 3. In addition, and even if the heating element 16 is not activated or the device hairdressing does not include such a heating element, the electronic module 26 is likely, during its normal operation, to heat up by itself under the effect in particular of the electric current passing through it. In all cases, this results in a high risk of malfunction, or even total failure, of the electronic module 26, if the temperature of the latter is not controlled and exceeds a certain tolerance threshold.
  • the hairdressing appliance 1 comprises, very interestingly, a diversion channel 30 which is designed to capture part of the air flow generated by the blower module 2 in order to ensure the cooling of said electronic module 26.
  • the diversion channel 30 is thus designed and configured to ensure the collection and diversion of part of the forced air flow produced by the blower module 2 - before said air flow or, where appropriate, heated by the heating element 16 - in order to guide and blow the part of the air flow thus taken as close as possible to the electronic module 26 to ensure forced cooling of the latter.
  • said diversion channel 30 extends at least partly in said handle 4.
  • the diversion channel 30 is thus advantageously integrated into the handle 4.
  • the hairdressing appliance 1 may be designed so that the guide channel 7 and the diversion channel 30 extend parallel to each other within the handle 4, advantageously along the first axis A-A' of extension of the latter.
  • the diversion channel 30 of the hairdressing appliance 1 advantageously opens, on the one hand, at the level of the air outlet of the working chamber 11 of the hairdressing module. blower 2, to capture part of the air flow (fresh, that is to say not yet heated by the heating element 16) generated by the blower module 2 and, on the other hand, in the immediate vicinity of the electronic module 26 which is housed in the blowing head 3.
  • said diversion channel 30 can be formed, along all or part of the length of the handle 4, by a free space provided between an interior wall of the handle 4 and an exterior wall of the tubular thermal insulator 18. Such a design also advantageously allows the handle 4 to be cooled, which improves the comfort of use of the hairdressing appliance 1.
  • Said diversion channel 30 can advantageously extend, at the level of the blowing head 3, inside a double-walled wall 31 forming a back of the bent tubular element 24, then through the support 29, mentioned above, via which the electronic module 26 is advantageously fixed to the bent tubular element 24.
  • the hairdressing appliance 1 can comprise a circuit for re-injecting the part of the air flow captured into the (main) air flow blown by the blowing head 3, so that after having contributed to the cooling of the electronic module 26, the part of the air flow which has been captured by the diversion channel 30 can itself be blown towards the user's hair via the air outlet(s) 19, 20 of the blowing head 3. In this way, the cooling of the module electronic 26 does not significantly impact the flow rate of the air flow generated by the blower module 2 and blown by the blower head 3.
  • the nozzle body 22 of the blowing head 3 may be provided with an orifice (not illustrated) for reinjection of the part of the air flow captured directly inside the nozzle body 22, preferably in downstream of the bent tubular element 24 of the deflector 23.
  • the external envelope 21 of the blowing head 3 can be provided with vents (or equivalent) through which all or part of the part of the air flow captured can escape out of the blowing head 3, and therefore outside the hairdressing appliance 1.
  • vents or equivalent
  • the part of the air flow used to cool the electronic module 26 can be rejected towards the outside of the hairdressing appliance 1 without impacting (or at the very least without significantly impacting) the temperature of the (main) air flow blown by the blowing head 3 towards the user's hair.
  • the diversion channel 30 is advantageously sized as a function of the desired level of cooling, depending on the temperature that the electronic module 26 can effectively withstand.
  • said diversion channel 30 may be sized in order to allow a flow rate to pass through it. of air between 1 and 10 m 3 /h, to allow effective cooling of the electronic module 26.
  • Such a bypass channel 30 thus allows particularly simple, effective and very inexpensive cooling of the electronic module 26 without it being necessary to resort to bulky additional cooling means, whether passive (for example, of the radiator type finned) and/or active (for example, fan type).
  • the hairdressing device 1 thus has great operational reliability, while being simple, compact and inexpensive in design.

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  • Cleaning And Drying Hair (AREA)

Description

La présente invention se rapporte au domaine technique général des appareils de coiffure, par exemple à usage domestique, et plus précisément au domaine des appareils de coiffure électriques conçus pour souffler un flux d'air afin de sécher et / ou de faciliter la mise en forme des cheveux.The present invention relates to the general technical field of hairdressing appliances, for example for domestic use, and more specifically to the field of electric hairdressing appliances designed to blow a flow of air in order to dry and/or facilitate styling hair.

On connaît depuis longtemps déjà des appareils de coiffure, par exemple de type sèche-cheveux, conçus pour permettre à un utilisateur de sécher et / ou de mettre en forme ses cheveux par soufflage d'un flux d'air en direction des cheveux. Typiquement, de tels appareils de coiffure connus comprennent une tête de soufflage alimentée en air par un groupe moto-ventilateur, ainsi que généralement un élément chauffant permettant d'obtenir un flux d'air chaud pour faciliter le séchage des cheveux.Hairdressing appliances, for example of the hair dryer type, have been known for a long time, designed to allow a user to dry and/or shape their hair by blowing a flow of air towards the hair. Typically, such known hairdressing devices include a blowing head supplied with air by a motorized fan unit, as well as generally a heating element making it possible to obtain a flow of hot air to facilitate drying of the hair.

On observe actuellement une certaine évolution technologique tendant à remplacer les composants traditionnels des appareils de coiffure par des moyens techniques plus performants, voire à doter les appareils de coiffure de nouvelles fonctionnalités pour un traitement optimal des cheveux. Cette évolution technique s'accompagne cependant de la nécessité d'intégrer, au sein des appareils de coiffures, des cartes et circuits électroniques supplémentaires destinés à assurer le bon fonctionnement de ces nouveaux composants et de ces nouvelles fonctionnalités.We are currently observing a certain technological development tending to replace the traditional components of hairdressing devices with more efficient technical means, or even to provide hairdressing devices with new functionalities for optimal hair treatment. This technical development is, however, accompanied by the need to integrate, within hairdressing devices, additional electronic cards and circuits intended to ensure the proper functioning of these new components and these new functionalities.

Il s'avère que la mise en oeuvre des tels cartes et circuits électroniques pose un certain nombre de difficultés en termes de conception des appareils de coiffure, tant en termes d'encombrement, et donc de compacité des appareils, qu'en termes de fiabilité de ces derniers, comme par exemple dans le document US 2016/220004 .It turns out that the implementation of such electronic cards and circuits poses a certain number of difficulties in terms of design of hairdressing devices, both in terms of size, and therefore compactness of the devices, and in terms of reliability. of the latter, as for example in the document US 2016/220004 .

Les objets assignés à l'invention visent par conséquent à porter remède à ces inconvénients et à proposer un nouvel appareil de coiffure qui, tout en étant de construction compacte, présente une fiabilité améliorée.The objects assigned to the invention therefore aim to remedy these drawbacks and to propose a new hairdressing device which, while being compact in construction, has improved reliability.

Un autre objet de l'invention vise à proposer un nouvel appareil de coiffure de construction particulièrement simple.Another object of the invention aims to propose a new hairdressing device of particularly simple construction.

Les objets assignés à l'invention sont atteints à l'aide d'un appareil de coiffure tel que défini dans la revendication 1. Les caractéristiques préférées de l'invention sont exposées dans les revendications dépendantes.The objects assigned to the invention are achieved using a hairdressing apparatus as defined in claim 1. The preferred features of the invention are set out in the dependent claims.

D'autres particularités et avantages de l'invention apparaîtront et ressortiront plus en détails à la lecture de la description faite ci-après, en référence aux dessins annexés, donnés uniquement à titre d'exemple illustratif et non limitatif, parmi lesquels :

  • La figure 1 illustre, selon une vue en perspective, un mode de réalisation préférentiel d'un appareil de coiffure conforme à l'invention.
  • La figure 2 illustre, selon une vue arrière, l'appareil de coiffure de la figure 1.
  • La figure 3 illustre, selon une vue de face, l'appareil de coiffure de la figure 1.
  • La figure 4 illustre, selon une vue latérale, l'appareil de coiffure de la figure 1.
  • La figure 5 illustre, selon une vue latérale en coupe longitudinale, l'appareil de coiffure des figures 1 à 4.
Other features and advantages of the invention will appear and emerge in more detail on reading the description given below, with reference to the appended drawings, given solely by way of illustrative and non-limiting example, among which:
  • There figure 1 illustrates, in a perspective view, a preferred embodiment of a hairdressing device according to the invention.
  • There figure 2 illustrates, from a rear view, the hairdressing device of the figure 1 .
  • There Figure 3 illustrates, in a front view, the hairdressing device of the figure 1 .
  • There Figure 4 illustrates, in a side view, the hairdressing device of the figure 1 .
  • There Figure 5 illustrates, in a side view in longitudinal section, the hairdressing device of figures 1 to 4 .

L'appareil de coiffure 1 conforme à l'invention est typiquement destiné à une utilisation dans un cadre domestique par un utilisateur dépourvu de compétences professionnelles particulières en matière de coiffure, c'est-à-dire tant en termes de séchage que de coiffage, de mise en forme des cheveux. A ce titre, l'appareil de coiffure 1 est préférentiellement conçu pour être saisi et manipulé à la main, il s'agit donc avantageusement d'un appareil de coiffure manuel, de préférence portatif.The hairdressing appliance 1 according to the invention is typically intended for use in a domestic setting by a user lacking particular professional skills in hairdressing, that is to say both in terms of drying and styling, hair shaping. As such, the hairdressing device 1 is preferably designed to be grasped and manipulated by hand, it is therefore advantageously a manual hairdressing device, preferably portable.

Selon un mode de réalisation préférentiel, illustré aux figures 1 à 5, l'appareil de coiffure 1 forme un sèche-cheveux (ou séchoir à cheveux), qui permet à un utilisateur de sécher ses cheveux mouillés ou humides par soufflage en direction des cheveux d'un flux d'air forcé, chaud ou froid, et de faciliter une mise en forme des cheveux. L'invention n'est toutefois pas limitée à ce mode de réalisation spécifique et il est par exemple tout à fait envisageable que l'appareil de coiffure forme une brosse à cheveux soufflante ou tout autre appareil de coiffure doté d'une fonction impliquant le soufflage d'un flux d'air sur les cheveux de l'utilisateur, et qui pourrait être plus spécifiquement utilisé à des fins de coiffage, par exemple en contact direct avec les cheveux (brossage, lissage, etc.).According to a preferred embodiment, illustrated in figures 1 to 5 , the hairdressing appliance 1 forms a hair dryer (or hair dryer), which allows a user to dry their wet or damp hair by blowing a flow of forced, hot or cold air towards the hair, and to facilitate shaping of the hair. The invention is however not limited to this specific embodiment and it is for example entirely possible that the hairdressing device forms a blowing hairbrush or any other hairdressing appliance with a function involving blowing a flow of air onto the user's hair, and which could be more specifically used for styling purposes, for example in direct contact with the hair (brushing, smoothing, etc.).

L'appareil de coiffure 1 conforme à l'invention comprend un module de soufflerie 2 conçu pour générer un flux d'air (forcé), et une tête de soufflage 3, par l'intermédiaire de laquelle le flux d'air généré par le module de soufflerie 2 est dirigé hors de l'appareil de coiffure 1 pour pouvoir être projeté en direction des cheveux de l'utilisateur. A ce titre, la tête de soufflage 3 est typiquement pourvue d'au moins une sortie d'air, par l'ouverture de laquelle le flux d'air généré par le module de soufflerie 2 est dirigé hors de l'appareil de coiffure 1.The hairdressing appliance 1 according to the invention comprises a blower module 2 designed to generate a (forced) air flow, and a blower head 3, via which the air flow generated by the blower module 2 is directed out of the hairdressing appliance 1 so that it can be projected towards the user's hair. As such, the blowing head 3 is typically provided with at least one air outlet, through the opening of which the air flow generated by the blowing module 2 is directed out of the hairdressing appliance 1 .

L'appareil de coiffure 1 comprend également un manche 4 (ou poignée) de préhension manuelle, destiné à être saisi par l'utilisateur pour manipuler l'appareil de coiffure 1, et auquel la tête de soufflage 3 est reliée. Le manche 4 s'étend entre une première extrémité 5 et une deuxième extrémité 6 opposée, de préférence longitudinalement selon un premier axe A-A'. Dans le mode de réalisation préférentiel illustré aux figures, le manche 4 est formé d'une pièce globalement tubulaire (par exemple de section moyenne circulaire ou elliptique, constante ou non), conformée et dimensionnée pour en assurer une bonne prise en main par l'utilisateur.The hairdressing appliance 1 also comprises a handle 4 (or handle) for manual gripping, intended to be grasped by the user to manipulate the hairdressing appliance 1, and to which the blowing head 3 is connected. The handle 4 extends between a first end 5 and an opposite second end 6, preferably longitudinally along a first axis A-A'. In the preferred embodiment illustrated in the figures, the handle 4 is formed of a generally tubular part (for example of circular or elliptical average section, constant or not), shaped and dimensioned to ensure good grip by the user.

Ladite tête de soufflage 3 prolonge le manche 4 à partir de la deuxième extrémité 6, et forme ainsi préférentiellement une partie terminale de l'appareil de coiffure 1, comme dans le cas du mode de réalisation préférentiel illustré aux figures. Quel que soit son agencement par rapport au manche 4 de l'appareil de coiffure 1, la tête de soufflage 3 est préférentiellement conçue pour rester en permanence solidarisée au manche 4, la tête de soufflage 3 n'étant ainsi pas prévue (en usage normal) pour être dissociée du manche 4 de l'appareil de coiffure 1 par l'utilisateur. module de soufflerie 2 de l'appareil de coiffure 1 est agencé au sein du manche 4 ou est assemblé au manche 4 au niveau de la première extrémité 5 de ce dernier, comme illustré aux figures.Said blowing head 3 extends the handle 4 from the second end 6, and thus preferably forms an end part of the hairdressing appliance 1, as in the case of the preferred embodiment illustrated in the figures. Whatever its arrangement in relation to the handle 4 of the hairdressing appliance 1, the blowing head 3 is preferably designed to remain permanently attached to the handle 4, the blowing head 3 thus not being provided (in normal use ) to be dissociated from the handle 4 of the hairdressing appliance 1 by the user. blower module 2 of the hairdressing appliance 1 is arranged within the handle 4 or is assembled to the handle 4 at the first end 5 of the latter, as illustrated in the figures.

Il est ainsi possible de dimensionner le module de soufflerie 2 de manière à générer un flux d'air d'un débit important, de façon économique, et sans pour autant impacter l'encombrement général de la tête de soufflage 3 et du manche 4. En outre, un agencement du module de soufflerie 2 et de la tête de soufflage 3 à chacune des extrémités 5, 6 du manche 4 permet avantageusement de mieux équilibrer le poids de l'appareil de coiffure 1, par une répartition des masses de part et d'autre du manche 4, ce qui contribue au confort d'usage de ce dernier.It is thus possible to size the blower module 2 so as to generate an air flow with a high flow rate, economically, and without impacting the general size of the blower head 3 and the handle 4. In addition, an arrangement of the blower module 2 and the blower head 3 at each of the ends 5, 6 of the handle 4 advantageously makes it possible to better balance the weight of the hairdressing appliance 1, by a distribution of the masses on both sides. other of the handle 4, which contributes to the comfort of use of the latter.

Dans le cas où le module de soufflerie 2 est agencé au sein du manche 4 ou est assemblé au manche 4 au niveau de la première extrémité 5 de ce dernier, le manche 4 peut avantageusement comprendre un canal de guidage 7 du flux d'air généré par le module de soufflerie 2 en direction de la tête de soufflage 3. Ledit canal de guidage 7 canalise avantageusement ledit flux d'air à travers le manche 4, typiquement dans le sens de la première extrémité 5 du manche 2 vers la deuxième extrémité 6 de ce dernier, comme illustré en exemple à la figure 5.In the case where the blower module 2 is arranged within the handle 4 or is assembled with the handle 4 at the first end 5 of the latter, the handle 4 can advantageously comprise a guide channel 7 for the air flow generated by the blower module 2 towards the blower head 3. Said guide channel 7 advantageously channels said air flow through the handle 4, typically in the direction of the first end 5 of the handle 2 towards the second end 6 of the latter, as illustrated as an example in Figure 5 .

Le module de soufflerie 2 de l'appareil de coiffure 1 comprend préférentiellement un groupe moto-ventilateur 8, comprenant lui-même un moteur électrique 9. Le groupe moto-ventilateur 8 peut comprendre un ventilateur axial classique à hélice ou hélicoïde. Alternativement, le groupe moto-ventilateur 8 peut avantageusement comprendre un ventilateur de type hélico-centrifuge ou centrifuge. La mise en oeuvre d'un tel ventilateur hélico-centrifuge ou centrifuge permet avantageusement d'obtenir, à encombrement équivalent, une pression interne élevée avec un débit d'air sensiblement analogue à celui d'un ventilateur à hélice ou hélicoïde, mais avec une vitesse de rotation moindre et donc un bruit généré par le groupe moto-ventilateur 8 moins important. De préférence, le moteur électrique 9 du groupe moto-ventilateur 8 est un moteur électrique sans balai (moteur dit « brushless » ou machine synchrone auto-pilotée à aimants permanents). Un tel moteur électrique 9 sans balai est généralement plus robuste, plus fiable et plus léger qu'un moteur électrique classique à balai. Moins bruyant et plus économe en énergie, il offre en outre une plus grande souplesse et une meilleure précision du réglage de sa vitesse de rotation.The blower module 2 of the hairdressing appliance 1 preferably comprises a motor-fan group 8, itself comprising an electric motor 9. The motor-fan group 8 may comprise a classic axial fan with propeller or helicoid. Alternatively, the motor-fan group 8 can advantageously comprise a fan of the helico-centrifugal or centrifugal type. The use of such a helico-centrifugal or centrifugal fan advantageously makes it possible to obtain, with equivalent dimensions, a high internal pressure with an air flow rate substantially similar to that of a propeller or helical fan, but with a lower rotation speed and therefore less noise generated by the motor-fan group 8. Preferably, the electric motor 9 of the motor-fan group 8 is a brushless electric motor (so-called “ brushless ” motor or self-controlled synchronous machine with permanent magnets). Such a brushless electric motor 9 is generally more robust, more reliable and lighter than a conventional brushed electric motor. Less noisy and more energy efficient, it also offers greater flexibility and better precision in adjusting its rotation speed.

Dans le mode de réalisation préférentiel des figures 1 à 5, le groupe moto-ventilateur 8 comprend avantageusement un ventilateur 10 de type centrifuge, et son moteur électrique 9 est un moteur électrique sans balai, comme proposé ci-dessus. Le module de soufflerie 2 comprend en outre une chambre de travail 11 interne en forme de volute, au sein de laquelle est logé le groupe moto-ventilateur 8. Ladite chambre de travail 11 peut, comme illustré à la figure 5, être définie par les parois internes de deux demi-coques 12, 13 assemblées l'une à l'autre (par exemple, par vissage) et solidarisées au manche 4 au niveau de la première extrémité 7 de ce dernier. Le module de soufflerie 2 est pourvu d'une entrée d'air 14, par laquelle l'air ambiant est aspiré axialement par le ventilateur 10 au sein de la chambre de travail 11, et une sortie d'air qui est avantageusement reliée au canal de guidage 7 d'air du manche 4 et par laquelle l'air aspiré est refoulé radialement hors de la chambre de travail 11. Le module de soufflerie 2 comprend en outre préférentiellement une grille 15 (éventuellement amovible et repositionnable) de protection de l'entrée d'air 14 de la chambre de travail 11.In the preferred embodiment of figures 1 to 5 , the motor-fan group 8 advantageously comprises a fan 10 of the centrifugal type, and its electric motor 9 is a brushless electric motor, as proposed above. The blower module 2 further comprises an internal working chamber 11 in the shape of a volute, within which the motor-fan group 8 is housed. Said working chamber 11 can, as illustrated in Figure figure 5 , be defined by the internal walls of two half-shells 12, 13 assembled together (for example, by screwing) and secured to the handle 4 at the level of the first end 7 of the latter. The blower module 2 is provided with an air inlet 14, through which the ambient air is sucked axially by the fan 10 within the working chamber 11, and an air outlet which is advantageously connected to the channel guide 7 of air from the handle 4 and by which the sucked air is discharged radially out of the working chamber 11. The blower module 2 further preferably comprises a grid 15 (possibly removable and repositionable) for protecting the air inlet 14 of the working chamber 11.

De préférence, l'appareil de coiffure 1 comprend également un élément chauffant 16 conçu pour élever la température du flux d'air généré par le module de soufflerie 2. De préférence embarqué au sein de l'appareil de coiffure 1, l'élément chauffant 16 peut être agencé au sein de la tête de soufflage 3 ou au sein (c'est-à-dire à l'intérieur) du manche 4 de ce dernier. De manière plus avantageuse, l'élément chauffant 16 est agencé (au moins en partie) au sein du manche 4, et de manière plus avantageuse encore à l'intérieur même du canal de guidage 7 du manche 4, comme dans le mode de réalisation préférentiel illustré aux figures, de sorte à être interposé dans le flux d'air généré par le module de soufflerie 2. Une telle configuration permet notamment de réduire l'encombrement et le poids de la tête de soufflage 2, et de simplifier la conception de cette dernière.Preferably, the hairdressing appliance 1 also includes a heating element 16 designed to raise the temperature of the air flow generated by the blower module 2. Preferably embedded within the hairdressing appliance 1, the heating element 16 can be arranged within the blowing head 3 or within (i.e. inside) of handle 4 of the latter. More advantageously, the heating element 16 is arranged (at least in part) within the handle 4, and even more advantageously within the guide channel 7 of the handle 4, as in the embodiment preferential illustrated in the figures, so as to be interposed in the air flow generated by the blower module 2. Such a configuration makes it possible in particular to reduce the bulk and weight of the blower head 2, and to simplify the design of the latter.

Il s'agit typiquement d'un élément chauffant électrique, fonctionnant sur le principe de l'effet Joule, et dont la puissance est de préférence supérieure à 500 W. De préférence, l'élément chauffant 16 comprend au moins une résistance électrique chauffante formée d'un enroulement d'un fil conducteur métallique (par exemple, en nichrome) autour d'une âme isolante. Dans le mode de réalisation préférentiel illustré aux figures, l'élément chauffant 16 se présente plus précisément sous la forme d'un enroulement d'un fil conducteur métallique (non illustré) autour d'une âme 17 isolante (par exemple, en mica) de section cruciforme et pourvue, en ses extrémités, d'ailettes de fixation. Avantageusement, l'appareil de coiffure 1 comprend en outre un isolant thermique 18, par exemple une pièce tubulaire à base circulaire, au sein duquel est monté l'élément chauffant 16, et qui permet notamment de protéger l'utilisateur du risque de brûlure en limitant l'échauffement du manche 4. Comme illustré à la figure 5, la paroi intérieure de l'isolant thermique 18 tubulaire peut avantageusement définir tout ou partie du canal de guidage 7 du flux d'air évoqué ci-avant.It is typically an electric heating element, operating on the principle of the Joule effect, and whose power is preferably greater than 500 W. Preferably, the heating element 16 comprises at least one electrical heating resistance formed of a winding of a metallic conductive wire (for example, nichrome) around an insulating core. In the preferred embodiment illustrated in the figures, the heating element 16 is more precisely in the form of a winding of a metallic conductive wire (not illustrated) around an insulating core 17 (for example, made of mica) of cruciform section and provided, at its ends, with fixing fins. Advantageously, the hairdressing appliance 1 further comprises a thermal insulator 18, for example a tubular part with a circular base, within which the heating element 16 is mounted, and which in particular makes it possible to protect the user from the risk of burns by limiting the heating of the handle 4. As illustrated in figure 5 , the interior wall of the tubular thermal insulator 18 can advantageously define all or part of the guide channel 7 of the air flow mentioned above.

Selon une variante (non illustrée), la tête de soufflage 3 est montée fixe relativement au manche 4. Dans ce cas, la tête de soufflage 3 est alors préférentiellement pourvue d'une seule sortie d'air.According to a variant (not illustrated), the blowing head 3 is fixedly mounted relative to the handle 4. In this case, the blowing head 3 is then preferably provided with a single air outlet.

Selon une autre variante, la tête de soufflage 3 est, au contraire, montée mobile relativement au manche 4. La tête de soufflage 3 peut alors, par exemple, être pourvue d'une seule sortie d'air. Le caractère mobile de la tête de soufflage 3 permet alors par exemple de modifier la direction du flux d'air soufflé par l'appareil de coiffure 1, en fonction de la position de la tête de soufflage 3 par rapport au manche 4.According to another variant, the blowing head 3 is, on the contrary, mounted movable relative to the handle 4. The blowing head 3 can then, for example, be provided with a single air outlet. The mobile nature of the head blower 3 then allows for example to modify the direction of the air flow blown by the hairdressing appliance 1, depending on the position of the blowing head 3 relative to the handle 4.

De manière plus avantageuse, la tête de soufflage 3 est pourvue, non pas d'une seule sortie d'air, mais d'au moins une première sortie d'air 19 et une deuxième sortie d'air 20, distinctes (et donc différentes, non confondues) l'une de l'autre. La tête de soufflage 3 peut alors être avantageusement montée mobile relativement au manche 4 entre au moins une première position dans laquelle le flux d'air généré par le module de soufflerie 2 est soufflé par la tête de soufflage 3 par l'intermédiaire de la première sortie d'air 19, et une deuxième position dans laquelle ledit flux d'air est soufflé par la tête de soufflage 3 par l'intermédiaire de la deuxième sortie d'air 20 de cette dernière. L'appareil de coiffure 1 est ainsi avantageusement conçu et configuré pour permettre, par un déplacement (c'est-à-dire par une modification de l'agencement, du positionnement) de la tête de soufflage 3 par rapport au manche 4, de sélectionner alternativement l'une ou l'autre des première 19 et deuxième 20 sorties d'air de la tête de soufflage 3 par laquelle le flux d'air sera soufflé par la tête de soufflage 3.More advantageously, the blowing head 3 is provided, not with a single air outlet, but with at least a first air outlet 19 and a second air outlet 20, distinct (and therefore different , not combined) from each other. The blowing head 3 can then advantageously be mounted movable relative to the handle 4 between at least a first position in which the air flow generated by the blowing module 2 is blown by the blowing head 3 via the first air outlet 19, and a second position in which said air flow is blown by the blowing head 3 via the second air outlet 20 of the latter. The hairdressing appliance 1 is thus advantageously designed and configured to allow, by a movement (that is to say by a modification of the arrangement, the positioning) of the blowing head 3 relative to the handle 4, to alternately select one or the other of the first 19 and second 20 air outlets of the blowing head 3 through which the air flow will be blown by the blowing head 3.

De manière plus préférentielle encore, la tête de soufflage 3 peut être montée mobile à rotation relativement au manche 4, autour d'un deuxième axe B-B' de rotation, comme dans le mode de réalisation illustré au figures. La tête de soufflage 3 est alors montée relativement au manche 4 selon une liaison pivot, de sorte à pouvoir ainsi tourner par rapport au manche 4. L'appareil de coiffure 1 peut ainsi avantageusement être conçu et configuré pour permettre à l'utilisateur, par pivotement de la tête de soufflage 3 par rapport au manche 4, de sélectionner alternativement l'une ou l'autre des première 19 et deuxième 20 sorties d'air de la tête de soufflage 3 par laquelle le flux d'air sera soufflé par la tête de soufflage 3.Even more preferably, the blowing head 3 can be mounted movable to rotate relative to the handle 4, around a second axis B-B' of rotation, as in the embodiment illustrated in the figures. The blowing head 3 is then mounted relative to the handle 4 according to a pivot connection, so as to be able to rotate relative to the handle 4. The hairdressing appliance 1 can thus advantageously be designed and configured to allow the user, for example pivoting of the blowing head 3 relative to the handle 4, to alternately select one or the other of the first 19 and second 20 air outlets of the blowing head 3 through which the air flow will be blown by the blower head 3.

Plus préférentiellement encore, la tête de soufflage 3 est montée à rotation relativement au manche 4 autour dudit deuxième axe B-B', lequel est confondu avec le premier axe A-A' d'extension du manche 4, comme dans le mode de réalisation illustré aux figures. Néanmoins, le deuxième axe B-B' de rotation pourrait être parallèle audit premier axe A-A' (et plus ou moins décalé par rapport à ce dernier). La cinématique de la tête de soufflage 3 est ainsi simple et fiable, et permet un maniement intuitif de l'appareil de coiffure 1 par l'utilisateur. Alternativement encore, on pourrait envisager que le deuxième axe B-B' soit sécant audit premier axe A-A' selon un angle typiquement compris entre 5 et 15°.Even more preferably, the blowing head 3 is mounted to rotate relative to the handle 4 around said second axis B-B', which coincides with the first axis AA' of extension of the handle 4, as in the embodiment illustrated in figures. Nevertheless, the second axis BB' of rotation could be parallel to said first axis AA' (and more or less offset from the latter). The kinematics of the blowing head 3 are thus simple and reliable, and allow intuitive handling of the hairdressing appliance 1 by the user. Alternatively still, one could envisage that the second axis BB' intersects said first axis AA' at an angle typically between 5 and 15°.

Ceci étant, d'autres cinématiques de tête de soufflage 3 mobile par rapport manche 4 sont bien évidemment envisageables. Par exemple, la tête de soufflage 3 pourrait, selon une variante alternative non illustrée aux figures, être montée mobile à translation relativement au manche 4, par exemple selon un axe de translation qui serait parallèle ou confondu au premier axe A-A' d'extension du manche 4, voire même encore selon un axe de translation qui serait au contraire orthogonal audit premier axe A-A' d'extension du manche 4. Il pourrait alors s'agir par exemple d'un mouvement en translation pure, de type liaison glissière, ou encore d'un mouvement en translation hélicoïdale, de la tête de soufflage 3 par rapport au manche 4.This being said, other kinematics of blowing head 3 movable in relation to handle 4 are obviously possible. For example, the blowing head 3 could, according to an alternative variant not illustrated in the figures, be mounted movable in translation relative to the handle 4, for example along an axis of translation which would be parallel or coincident with the first axis A-A' of extension of the handle 4, or even still along an axis of translation which would on the contrary be orthogonal to said first axis A-A' of extension of the handle 4. It could then be for example a movement in pure translation, of the slide connection type, or further helical translational movement of the blowing head 3 relative to the handle 4.

Dans le cas préférentiel où la tête de soufflage 3 est pourvue, comme évoqué ci-avant, d'au moins une première sortie d'air 19 et une deuxième 20 sorties d'air, celles-ci présentent préférentiellement des ouvertures de géométries différentes. En d'autres termes, la section utile de passage d'air de l'ouverture de la première sortie d'air 19 est alors définie par un contour (ou une pluralité de contours) de forme différente de la forme du contour (ou de la pluralité de contours) qui définit respectivement la section utile de passage d'air de l'ouverture de la deuxième sortie d'air 20. Le flux d'air soufflé par la tête de soufflage 3 affectera donc ainsi un profil différent selon la sortie d'air 19, 20 sélectionnée, de sorte que l'utilisateur pourra faire usage de l'appareil de coiffure 1 selon au moins deux configurations différentes de soufflage.In the preferential case where the blowing head 3 is provided, as mentioned above, with at least a first air outlet 19 and a second air outlet 20, these preferably have openings of different geometries. In other words, the useful air passage section of the opening of the first air outlet 19 is then defined by a contour (or a plurality of contours) of shape different from the shape of the contour (or of the plurality of contours) which respectively defines the useful air passage section of the opening of the second air outlet 20. The air flow blown by the blowing head 3 will therefore affect a different profile depending on the outlet air 19, 20 selected, so that the user can use the hairdressing appliance 1 in at least two different blowing configurations.

Ainsi, les première sortie d'air 19 et deuxième sortie d'air 20 sont avantageusement conçues pour souffler, projeter, deux flux d'air de profils différents, respectivement un premier flux d'air et un deuxième flux d'air, chacun de ces derniers permettant à l'utilisateur de réaliser une opération différente sur ses cheveux. Par exemple, le premier flux d'air peut correspondre à un flux d'air de séchage, de profil large et diffus, et de débit important (par exemple, de l'ordre de 70 m3/h), pour permettre à l'utilisateur de sécher rapidement ses cheveux. Le deuxième flux d'air peut correspondre à un flux d'air de mise en forme, de profil concentré et étroit, et de débit moindre (par exemple, de l'ordre de 50 m3/h), pour permettre à l'utilisateur de choisir avec précision l'endroit de sa chevelure vers lequel le deuxième flux d'air sera soufflé. De la sorte, l'utilisateur peut habilement et facilement réaliser une mise en forme de sa chevelure, comme par exemple des ondulations, ou au contraire un lissage.Thus, the first air outlet 19 and second air outlet 20 are advantageously designed to blow, project, two air flows of different profiles, respectively a first air flow and a second air flow, each of the latter allowing the user to perform a different operation on their hair. For example, the first airflow may correspond to a drying air flow, with a wide and diffuse profile, and a high flow rate (for example, of the order of 70 m 3 /h), to allow the user to quickly dry their hair. The second air flow may correspond to a shaping air flow, with a concentrated and narrow profile, and a lower flow rate (for example, of the order of 50 m 3 /h), to allow the user to precisely choose the location of their hair towards which the second air flow will be blown. In this way, the user can skillfully and easily shape their hair, such as waves, or on the contrary straightening.

Par exemple, comme dans le mode de réalisation préférentiel illustré aux figures où l'appareil de coiffure 1 forme un sèche-cheveux, la première sortie d'air 19 présente une ouverture de forme générale sensiblement circulaire (figure 2), tandis que la deuxième sortie d'air 8 (figures 1 et 3) présente une ouverture de forme générale sensiblement oblongue, allongée. Ainsi, lorsque la tête de soufflage 3 occupe ladite première position relativement au manche 4, l'appareil de coiffure 1 peut être utilisé de manière classique pour sécher des cheveux mouillés, le premier flux d'air soufflé par la tête de soufflage 3 présentant, au voisinage de la première sortie d'air 19, un profil sensiblement cylindrique ou conique. Lorsque la tête de soufflage 3 occupe ladite deuxième position relativement au manche 4, l'appareil de coiffure 1 peut alors être utilisé pour sécher les cheveux tout en facilitant la mise en forme des cheveux (par exemple, pour réaliser un « brushing »), le deuxième flux d'air soufflé par la tête de soufflage 3 formant, au voisinage de la deuxième sortie d'air 20, une lame d'air qui permet à l'utilisateur de choisir avec précision l'endroit de sa chevelure où appliquer le flux d'air pour réaliser la mise en forme.For example, as in the preferred embodiment illustrated in the figures where the hairdressing appliance 1 forms a hairdryer, the first air outlet 19 has an opening of generally circular shape ( figure 2 ), while the second air outlet 8 ( figures 1 And 3 ) has an opening of generally oblong, elongated shape. Thus, when the blowing head 3 occupies said first position relative to the handle 4, the hairdressing appliance 1 can be used in a conventional manner for drying wet hair, the first flow of air blown by the blowing head 3 having, in the vicinity of the first air outlet 19, a substantially cylindrical or conical profile. When the blowing head 3 occupies said second position relative to the handle 4, the hairdressing appliance 1 can then be used to dry the hair while facilitating the shaping of the hair (for example, to perform a “ blow dry ”), the second flow of air blown by the blowing head 3 forming, in the vicinity of the second air outlet 20, an air blade which allows the user to choose precisely the place on their hair where to apply the air flow to achieve shaping.

Ainsi, l'appareil de coiffure 1 permet avantageusement à l'utilisateur de choisir entre au moins un premier mode d'utilisation (par exemple de séchage) et un deuxième mode d'utilisation (par exemple de mise en forme des cheveux) de l'appareil de coiffure 1 par une modification de l'agencement ou de la position de la tête de soufflage 3 relativement au manche 4 (et de préférence par une simple rotation de la tête de soufflage 3 relativement au manche 4), qui permet de sélectionner, de manière particulièrement simple et rapide, un profil de flux d'air adapté en fonction de l'opération à réaliser sur les cheveux.Thus, the hairdressing appliance 1 advantageously allows the user to choose between at least a first mode of use (for example drying) and a second mode of use (for example shaping the hair) of the hairdressing appliance 1 by modifying the arrangement or position of the blowing head 3 relative to the handle 4 (and preferably by a simple rotation of the blowing head 3 relative to the handle 4), which allows to select, in a particularly simple and rapid manner, an air flow profile adapted to the operation to be carried out on the hair.

De préférence, la tête de soufflage 3 comprend une enveloppe externe 21 (ou carénage) qui définit la forme et le contour externes de la tête de soufflage 3 et, avantageusement, la forme et le contour externes d'une partie terminale de l'appareil de coiffure 1, qui est reliée au manche 4 dudit appareil de coiffure 1. L'enveloppe externe 21 peut éventuellement être conformée pour conférer à la tête de soufflage 3 un aspect esthétique particulier, par exemple un aspect globalement cylindrique comme illustré en exemple aux figures 1 à 5.Preferably, the blowing head 3 comprises an external casing 21 (or fairing) which defines the external shape and contour of the blowing head 3 and, advantageously, the external shape and contour of an end part of the device hairdressing device 1, which is connected to the handle 4 of said hairdressing device 1. The external envelope 21 can optionally be shaped to give the blowing head 3 a particular aesthetic appearance, for example a generally cylindrical appearance as illustrated by example in figures 1 to 5 .

Dans le mode de réalisation préférentiel illustré aux figures, ladite enveloppe externe 21 est avantageusement conformée pour en permettre une préhension manuelle par l'utilisateur, afin que ce dernier puisse imprimer directement à la main à ladite enveloppe externe 21 (et donc à la tête de soufflage 3), un mouvement de pivotement autour du deuxième axe B-B' de rotation de la tête de soufflage 3 par rapport au manche 4, pour sélectionner l'une ou l'autre desdites première 19 et deuxième 20 sorties d'air de la tête de soufflage, et donc le mode de fonctionnement correspondant de l'appareil de coiffure 1.In the preferred embodiment illustrated in the figures, said external envelope 21 is advantageously shaped to allow manual gripping by the user, so that the latter can print directly by hand on said external envelope 21 (and therefore on the head of blowing 3), a pivoting movement around the second axis B-B' of rotation of the blowing head 3 relative to the handle 4, to select one or the other of said first 19 and second 20 air outlets from the head blowing, and therefore the corresponding operating mode of the hairdressing appliance 1.

Avantageusement, la tête de soufflage 3 comprend un corps de tuyère 22 pour guider le flux d'air hors de l'appareil de coiffure 1, en direction des cheveux de l'utilisateur. Dans le mode de réalisation préférentiel illustré aux figures (et comme cela est plus particulièrement visible à la figure 5), le corps de tuyère 22 est avantageusement enchâssé dans ladite enveloppe externe 21, formée par exemple de demi-coques assemblées par encliquetage ou par vissage. La mise en rotation, par l'utilisateur, de l'enveloppe externe 21 de la tête de soufflage 3 autour du deuxième axe B-B' entraîne ainsi la mise en rotation conjointe du corps de tuyère 22 autour dudit deuxième axe B-B'.Advantageously, the blowing head 3 comprises a nozzle body 22 to guide the air flow out of the hairdressing appliance 1, towards the user's hair. In the preferred embodiment illustrated in the figures (and as is more particularly visible in the figure 5 ), the nozzle body 22 is advantageously embedded in said external envelope 21, formed for example of half-shells assembled by snap-fastening or screwing. Rotation, by the user, of the outer casing 21 of the blowing head 3 around the second axis BB' thus causes the nozzle body 22 to rotate jointly around said second axis B-B'.

Avantageusement, l'enveloppe externe 21 de la tête de soufflage 3 s'étend globalement longitudinalement selon un troisième axe C-C' orthogonal à un plan médian de la tête de soufflage 3, ladite tête de soufflage 3 étant agencée relativement au manche 4 de sorte que le deuxième axe B-B' de rotation de la tête de soufflage 3 est confondu avec le premier axe A-A' d'extension longitudinale du manche 4, et que lesdits premier A-A' et deuxième B-B' axes sont inscrits dans le plan médian de la tête de soufflage 3. L'enveloppe externe 21 s'étend donc avantageusement selon ledit troisième axe C-C' qui est orthogonal à la fois au premier axe A-A' d'extension longitudinale du manche 4 et au deuxième axe B-B' de rotation de la tête de soufflage 3, et sur une longueur moyenne sensiblement égale de part et d'autre desdits premier A-A' et deuxième B-B' axes. Outre l'effet esthétique de symétrie ou quasi-symétrie qui peut être ainsi obtenu, cet agencement particulier contribue avantageusement à un bon équilibre général et à une bonne maniabilité de l'appareil de coiffure 1 par l'utilisateur.Advantageously, the external envelope 21 of the blowing head 3 extends generally longitudinally along a third axis CC' orthogonal to a median plane of the blowing head 3, said blowing head 3 being arranged relative to the handle 4 so that the second axis BB' of rotation of the blowing head 3 coincides with the first axis AA' of extension longitudinal of the handle 4, and that said first AA' and second BB' axes are inscribed in the median plane of the blowing head 3. The external envelope 21 therefore extends advantageously along said third axis CC' which is orthogonal to the times to the first axis AA' of longitudinal extension of the handle 4 and to the second axis BB' of rotation of the blowing head 3, and over a substantially equal average length on either side of said first AA' and second BB' axes . In addition to the aesthetic effect of symmetry or quasi-symmetry which can thus be obtained, this particular arrangement advantageously contributes to a good general balance and to good handling of the hairdressing device 1 by the user.

Comme illustré en particulier sur la vue en coupe de la figure 5, le corps de tuyère 22, avantageusement monolithique, s'étend lui-même préférentiellement selon le troisième axe C-C' d'extension longitudinale de la tête de soufflage 3 entre, d'une part, une première extrémité de tuyère formant la première sortie d'air 19 de la tête de soufflage 3 (laquelle présente avantageusement une ouverture de forme générale sensiblement circulaire, comme évoqué ci-avant) et, d'autre part, une deuxième extrémité de tuyère opposée formant, quant à elle, la deuxième sortie d'air 20 de la tête de soufflage 3 (laquelle présente avantageusement une ouverture de forme générale sensiblement oblongue, allongée, suivant une direction perpendiculaire au deuxième axe B-B' de la tête de soufflage 3). Les première 19 et deuxième 20 sorties d'air de la tête de soufflage 3 sont ainsi agencées de part et d'autre du deuxième axe B-B' de rotation de la tête de soufflage 3 relativement au manche 4. Le passage de la tête de soufflage 3 de ladite première position à ladite deuxième position correspond alors avantageusement à une rotation de ladite tête de soufflage 3 d'un angle de 180° autour dudit deuxième axe B-B'. Cet agencement particulier contribue à un maniement pratique et particulièrement intuitif de l'appareil de coiffure 1 par l'utilisateur.As illustrated in particular in the sectional view of the figure 5 , the nozzle body 22, advantageously monolithic, itself extends preferentially along the third axis CC' of longitudinal extension of the blowing head 3 between, on the one hand, a first end of the nozzle forming the first outlet d air 19 of the blowing head 3 (which advantageously has an opening of generally circular shape, as mentioned above) and, on the other hand, a second opposite end of the nozzle forming, for its part, the second outlet of air 20 of the blowing head 3 (which advantageously has an opening of generally oblong, elongated shape, in a direction perpendicular to the second axis BB' of the blowing head 3). The first 19 and second 20 air outlets of the blowing head 3 are thus arranged on either side of the second axis BB' of rotation of the blowing head 3 relative to the handle 4. The passage of the blowing head 3 from said first position to said second position then advantageously corresponds to a rotation of said blowing head 3 by an angle of 180° around said second axis B-B'. This particular arrangement contributes to practical and particularly intuitive handling of the hairdressing appliance 1 by the user.

Dans le mode de réalisation préférentiel illustré aux figures, l'appareil de coiffure 1 comprend également un déflecteur 23 pour guider le flux d'air généré par le module de soufflerie 2 depuis le canal de guidage 7 du manche 4 alternativement vers l'une ou l'autre desdites première 19 et deuxième 20 sorties d'air, selon la position occupée par la tête de soufflage 3 montée à pivotement par rapport au manche 4. Comme illustré à la figure 5, le déflecteur 23 comprend préférentiellement un élément tubulaire coudé 24, monté fixe relativement au manche 4 et prolongeant le canal de guidage 7 d'air dit manche 4 suivant le premier axe A-A' d'extension du manche 4. Ainsi, la tête de soufflage 3 tourne avantageusement autour de l'élément tubulaire coudé 24 du déflecteur 23, lorsqu'elle passe de l'une à l'autre desdites première et deuxième positions. Comme illustré à la figure 5, le corps de tuyère 22 comprend avantageusement un orifice 25 d'entrée d'air, de dimensions conjuguées à celles de l'élément tubulaire coudé 24 du déflecteur, et par l'intermédiaire duquel ledit élément tubulaire coudé 24 pénètre dans le corps de tuyère 22, suivant le deuxième axe B-B' de rotation de la tête de soufflage 3. L'élément tubulaire coudé 24 et le corps de tuyère 22 sont avantageusement configurés et agencés l'un par rapport à l'autre de sorte que, lorsque la tête de soufflage 3 occupe ladite première position, l'élément tubulaire coudé 24 oriente le flux d'air dans le corps de tuyère 22 en direction de la première extrémité de tuyère formant la première sortie d'air 19 de la tête de soufflage 3, tout en empêchant préférentiellement toute fuite d'air en direction de la deuxième extrémité de tuyère opposée. Réciproquement, l'élément tubulaire coudé 24 et le corps de tuyère 22 sont avantageusement configurés et agencés l'un par rapport à l'autre de sorte que, lorsque la tête de soufflage 3 occupe ladite deuxième position (en l'espèce, à la suite d'une rotation de la tête de soufflage 3 d'un angle de 180° autour du deuxième axe B-B'), l'élément tubulaire coudé 24 oriente alors le flux d'air dans le corps de tuyère 22 en direction de la deuxième extrémité de tuyère formant la deuxième sortie d'air 20 de la tête de soufflage 3, tout en empêchant préférentiellement toute fuite d'air en direction de la première extrémité de tuyère opposée (figure 5). Comme illustré, le déflecteur 23 (et en particulier l'élément tubulaire coudé 24 de ce dernier) et le corps de tuyère 22 sont avantageusement conformés et agencés pour faire subir au flux d'air provenant du canal de guidage 7 d'air du manche 4 une déflection à 90° en direction de l'une ou l'autre des première 19 et deuxième 20 sorties d'air.In the preferred embodiment illustrated in the figures, the hairdressing appliance 1 also comprises a deflector 23 for guiding the air flow generated by the blower module 2 from the guide channel 7 of the handle 4 alternately towards one or the other of said first 19 and second 20 air outlets, depending on the position occupied by the blowing head 3 mounted to pivot relative to the handle 4. As illustrated in figure 5 , the deflector 23 preferably comprises a bent tubular element 24, fixedly mounted relative to the handle 4 and extending the air guide channel 7 called handle 4 along the first axis AA' of extension of the handle 4. Thus, the blowing head 3 advantageously rotates around the bent tubular element 24 of the deflector 23, when it passes from one to the other of said first and second positions. As illustrated in figure 5 , the nozzle body 22 advantageously comprises an air inlet orifice 25, of dimensions combined with those of the bent tubular element 24 of the deflector, and through which said bent tubular element 24 enters the nozzle body 22, along the second axis BB' of rotation of the blowing head 3. The bent tubular element 24 and the nozzle body 22 are advantageously configured and arranged relative to each other so that, when the head blower 3 occupies said first position, the bent tubular element 24 directs the air flow in the nozzle body 22 towards the first nozzle end forming the first air outlet 19 of the blower head 3, all by preferentially preventing any air leakage towards the second opposite nozzle end. Conversely, the bent tubular element 24 and the nozzle body 22 are advantageously configured and arranged relative to each other so that, when the blowing head 3 occupies said second position (in this case, at the following a rotation of the blowing head 3 by an angle of 180° around the second axis B-B'), the bent tubular element 24 then directs the air flow in the nozzle body 22 in the direction of the second nozzle end forming the second air outlet 20 of the blowing head 3, while preferentially preventing any air leakage towards the first opposite nozzle end ( Figure 5 ). As illustrated, the deflector 23 (and in particular the bent tubular element 24 of the latter) and the nozzle body 22 are advantageously shaped and arranged to subject the air flow coming from the air guide channel 7 of the handle 4 a 90° deflection in the direction of one or the other of the first 19 and second 20 air outlets.

Une conception tout à fait différente de la tête de soufflage de l'appareil de coiffure selon l'invention peut bien évidemment être envisagée, en particulier dans le cas où la tête de soufflage ne comprend qu'une seule sortie d'air et n'est en outre pas montée mobile relativement au manche de l'appareil de coiffure.A completely different design of the blowing head of the hairdressing appliance according to the invention can obviously be envisaged, in particular in the case where the blowing head only comprises a single air outlet and does not is also not mounted movable relative to the handle of the hairdressing appliance.

L'appareil de coiffure 1 conforme à l'invention comprend également un module électronique 26. Non nécessairement destiné à être manipulé directement par l'utilisateur, ni même à être accessible par ce dernier, le module électronique 26 est avantageusement conçu pour interagir (directement ou indirectement) avec tout ou partie des différents organes fonctionnels que peut comprendre l'appareil de coiffure 1. Il s'agit typiquement d'une carte, d'un circuit électronique, d'un circuit imprimé (« PCB ») ou d'un ensemble de composants électriques, électroniques ou électromécaniques, interne à l'appareil de coiffure 1. Le module électronique 26 peut être destiné à assurer un mode d'alimentation électrique particulier (avec, par exemple, une fonction de filtrage, de transformation ou de redressement de courant), à assurer un contrôle, une commande ou encore une régulation du fonctionnement de l'un et / ou l'autre des organes fonctionnels de l'appareil de coiffure 1. Eventuellement, ledit module électronique 26 peut comprendre des composants tels qu'une batterie électrique, un afficheur, un ou plusieurs microcontrôleur(s), etc. Le module électronique 26 peut éventuellement être relié à un certain nombre de capteurs et senseurs répartis dans l'appareil de coiffure 1 et destinés à mesurer, à surveiller, des grandeurs physiques liées au fonctionnement de ce dernier (températures, tensions et intensités électriques, vitesses / débits de flux d'air, vitesse de rotation du ventilateur 10 du module de soufflerie 2, etc.), afin de piloter en retour, de manière optimale, le fonctionnement des différents organes fonctionnels de l'appareil de coiffure 1.The hairdressing device 1 according to the invention also comprises an electronic module 26. Not necessarily intended to be manipulated directly by the user, nor even to be accessible by the latter, the electronic module 26 is advantageously designed to interact (directly or indirectly) with all or part of the different functional organs that may include the hairdressing appliance 1. This is typically a card, an electronic circuit, a printed circuit (“ PCB ”) or a set of electrical, electronic or electromechanical components, internal to the hairdressing appliance 1. The electronic module 26 can be intended to ensure a particular electrical power supply mode (with, for example, a filtering, transformation or current rectification), to ensure control, command or even regulation of the operation of one and/or the other of the functional organs of the hairdressing appliance 1. Optionally, said electronic module 26 may include components such such as an electric battery, a display, one or more microcontroller(s), etc. The electronic module 26 can possibly be connected to a certain number of sensors and sensors distributed in the hairdressing appliance 1 and intended to measure, to monitor, physical quantities linked to the operation of the latter (temperatures, electrical voltages and intensities, speeds / air flow rates, rotation speed of the fan 10 of the blower module 2, etc.), in order to control in return, in an optimal manner, the operation of the different functional organs of the hairdressing appliance 1.

De préférence, le module électronique 26 est plus spécifiquement conçu pour assurer le pilotage ou le contrôle du fonctionnement de l'appareil de coiffure 1. Par exemple, le module électronique 26 peut être conçu pour piloter le fonctionnement de l'élément chauffant 16, et comprendre à ce titre un circuit de commande d'alimentation électrique et/ ou de régulation spécifique (puissance, température, etc.) dudit élément chauffant 16.Preferably, the electronic module 26 is more specifically designed to ensure the piloting or monitoring of the operation of the hairdressing appliance 1. For example, the electronic module 26 can be designed to control the operation of the heating element 16, and understand in this respect a circuit electrical power control and/or specific regulation (power, temperature, etc.) of said heating element 16.

De manière préférentielle, le module électronique 26 est plus particulièrement conçu pour piloter le fonctionnement du module de soufflerie 2 de l'appareil de coiffure 1. De manière plus préférentielle encore, le module électronique 26 est conçu pour piloter uniquement le fonctionnement dudit module de soufflerie 2.Preferably, the electronic module 26 is more particularly designed to control the operation of the blower module 2 of the hairdressing appliance 1. Even more preferably, the electronic module 26 is designed to only control the operation of said blower module 2.

Par exemple, dans le cas préférentiel où le module de soufflerie 5 comprend un moteur électrique 9 sans balai, comme envisagé ci-dessus, le pilotage dudit moteur électrique 9 sans balai peut ainsi être avantageusement assuré par le module électronique 26. A ce titre, le module électronique 26 peut être conçu pour assurer notamment la commutation du courant électrique dans les enroulements statoriques (contrôle des phases) du moteur en fonction de données en provenance de capteurs de position (par exemple, à effet Hall), l'autorégulation de la vitesse de rotation, etc.For example, in the preferential case where the blower module 5 comprises a brushless electric motor 9, as envisaged above, the control of said brushless electric motor 9 can thus be advantageously ensured by the electronic module 26. As such, the electronic module 26 can be designed to ensure in particular the switching of the electric current in the stator windings (phase control) of the motor as a function of data coming from position sensors (for example, Hall effect), the self-regulation of the rotation speed, etc.

Comme illustré aux figures, ledit module électronique 26 est agencé dans la tête de soufflage 3 de l'appareil de coiffure 1, de préférence hors du flux d'air circulant au sein de la tête de soufflage 3. Comme illustré à la figure 5, la tête de soufflage 3 peut comprendre un compartiment 27 dédié, apte à recevoir ledit module électronique 26.As illustrated in the figures, said electronic module 26 is arranged in the blowing head 3 of the hairdressing appliance 1, preferably outside the air flow circulating within the blowing head 3. As illustrated in the figure 5 , the blowing head 3 may comprise a dedicated compartment 27, capable of receiving said electronic module 26.

Un tel agencement contribue à limiter l'encombrement général de l'appareil de coiffure 1, en particulier dans le cas où le module électronique 26 est conçu pour piloter le fonctionnement du module de soufflerie 2 et / ou de l'élément chauffant 16 et que ces derniers sont agencés hors de la tête de soufflage 3.Such an arrangement contributes to limiting the general size of the hairdressing appliance 1, in particular in the case where the electronic module 26 is designed to control the operation of the blower module 2 and/or the heating element 16 and that the latter are arranged outside the blowing head 3.

Dans le cas où la tête de soufflage 3 est montée mobile relativement au manche 4 et, en particulier, dans le cas où la tête de soufflage 3 est montée mobile à rotation relativement au manche 4 conformément au mode de réalisation préférentiel illustré aux figures, il peut alors s'avérer difficile d'assurer une connexion électrique simple et robuste entre, d'une part, l'élément chauffant 16 et / ou le module de soufflerie 2 agencés hors de la tête de soufflage 3 (ou tout autre organe fonctionnel de l'appareil de coiffure 1 qui serait relié au module électronique 26 et qui serait agencé hors de la tête de soufflage 3) et, d'autre part, le module électronique 26 qui est quant à lui logé dans la tête de soufflage 3.In the case where the blowing head 3 is mounted movable relative to the handle 4 and, in particular, in the case where the blowing head 3 is mounted movable to rotate relative to the handle 4 in accordance with the preferred embodiment illustrated in the figures, it can then prove difficult to ensure a simple and robust electrical connection between, on the one hand, the heating element 16 and/or the blower module 2 arranged outside the blower head 3 (or any other functional organ of the hairdressing device 1 which would be connected to the electronic module 26 and which would be arranged outside the head of blowing 3) and, on the other hand, the electronic module 26 which is housed in the blowing head 3.

C'est pourquoi, la tête de soufflage 3 sera alors préférentiellement montée mobile relativement au module électronique 26 logé en son sein, de sorte qu'un déplacement, un changement de position, de la tête de soufflage 3 par rapport au manche 4 n'affecte pas la position respective du module électronique 26.This is why the blowing head 3 will then preferably be mounted movable relative to the electronic module 26 housed within it, so that a movement, a change of position, of the blowing head 3 relative to the handle 4 does not occur. does not affect the respective position of the electronic module 26.

Au demeurant, selon un aspect indépendant, un appareil de coiffure comprenant un manche de préhension manuelle, une tête de soufflage reliée audit manche et un module électronique, lequel module électronique est logé au sein de ladite tête de soufflage, laquelle est elle-même montée mobile relativement audit module électronique, constitue en tant que tel une invention distincte à part entière, indépendamment des autres caractéristiques décrites ici.Furthermore, according to an independent aspect, a hairdressing device comprising a manual gripping handle, a blowing head connected to said handle and an electronic module, which electronic module is housed within said blowing head, which is itself mounted mobile relative to said electronic module, constitutes as such a distinct invention in its own right, independently of the other characteristics described here.

Dans le mode de réalisation préférentiel illustré aux figures, le module électronique 26 est ainsi avantageusement logé et agencé au sein de la tête de soufflage 3 de manière à rester immobile relativement au module de soufflerie 2 et / ou à l'élément chauffant 16 lors de la rotation de la tête de soufflage 3 autour du deuxième axe B-B'. A ce titre, et comme illustré à la figure 5, le corps de tuyère 22 peut être pourvu d'un orifice 28 supplémentaire, qui est opposé à l'orifice d'entrée d'air par l'intermédiaire duquel l'élément tubulaire coudé 24 du déflecteur 23 pénètre dans le corps de tuyère 22. Au niveau dudit orifice 28 supplémentaire affleure ou dépasse hors du corps de tuyère 22 une portion de l'élément tubulaire coudé 24 à laquelle le module électronique 26 pourra être fixé, directement ou par l'intermédiaire d'un support 29 spécifique. Bien évidemment, d'autres configurations de montage adéquates pourront être envisagées. Par exemple, selon son encombrement propre, le module électronique 26 pourrait être monté au dos de l'élément tubulaire coudé 24 du déflecteur 23.In the preferred embodiment illustrated in the figures, the electronic module 26 is thus advantageously housed and arranged within the blowing head 3 so as to remain immobile relative to the blower module 2 and/or to the heating element 16 during the rotation of the blowing head 3 around the second axis B-B'. As such, and as illustrated in figure 5 , the nozzle body 22 can be provided with an additional orifice 28, which is opposite the air inlet orifice via which the bent tubular element 24 of the deflector 23 enters the nozzle body 22 At the level of said additional orifice 28, a portion of the bent tubular element 24 is flush with or projects out of the nozzle body 22 to which the electronic module 26 can be fixed, directly or via a specific support 29. Obviously, other suitable mounting configurations could be considered. For example, depending on its own size, the electronic module 26 could be mounted on the back of the bent tubular element 24 of the deflector 23.

De la sorte, la connexion électrique entre l'élément chauffant 16 et / ou le module de soufflerie 2 (ou tout autre organe fonctionnel de l'appareil de coiffure 1 qui serait relié au module électronique 26 et qui serait agencé hors de la tête de soufflage 3) et le module électronique 26 logé dans la tête de soufflage 3 peut être avantageusement réalisée très simplement, à l'aide par exemple de fils conducteurs électriques classiques (non illustrés), sans risque d'endommagement des fils électriques par torsion ou encore sans nécessiter la mise en oeuvre de moyens de connexion électrique mobile complexe (du type connexion à connecteur tournant, par exemple). Le coût de fabrication de l'appareil de coiffure 1 est ainsi limité et sa fiabilité accrue.In this way, the electrical connection between the heating element 16 and/or the blower module 2 (or any other functional organ of the hairdressing appliance 1 which would be connected to the electronic module 26 and which would be arranged outside of the blowing head 3) and the electronic module 26 housed in the blowing head 3 can advantageously be produced very simply, using for example conventional electrical conductor wires (not shown), without risk of damaging the electrical wires by twisting or even without requiring the use of complex mobile electrical connection means (of the rotating connector connection type, for example). The manufacturing cost of the hairdressing device 1 is thus limited and its reliability increased.

Etant logé au sein de la tête de soufflage 3, et bien que préférentiellement agencé hors du flux d'air circulant à travers cette dernière, le module électronique 26 est susceptible de voir sa température augmenter significativement lorsque le flux d'air généré par le module de soufflerie 3 est réchauffé par l'élément chauffant 16 avant d'être soufflé hors de l'appareil 1 par la tête de soufflage 3. En outre, et quand bien même l'élément chauffant 16 n'est pas activé ou l'appareil de coiffure ne comprend pas de tel élément chauffant, le module électronique 26 est susceptible, au cours de son fonctionnement normal, de s'échauffer de lui-même sous l'effet notamment du courant électrique qui le traverse. Il en résulte dans tous les cas un risque élevé de dysfonctionnement, voire de panne totale, du module électronique 26, si la température de ce dernier n'est pas maîtrisée et vient à dépasser un certain seuil de tolérance.Being housed within the blowing head 3, and although preferably arranged outside the air flow circulating through the latter, the electronic module 26 is likely to see its temperature increase significantly when the air flow generated by the module blower 3 is heated by the heating element 16 before being blown out of the device 1 by the blowing head 3. In addition, and even if the heating element 16 is not activated or the device hairdressing does not include such a heating element, the electronic module 26 is likely, during its normal operation, to heat up by itself under the effect in particular of the electric current passing through it. In all cases, this results in a high risk of malfunction, or even total failure, of the electronic module 26, if the temperature of the latter is not controlled and exceeds a certain tolerance threshold.

C'est pourquoi l'appareil de coiffure 1 conforme à l'invention comprend, de manière très intéressante, un canal de dérivation 30 qui est conçu pour capter une partie du flux d'air généré par le module de soufflerie 2 afin d'assurer le refroidissement dudit module électronique 26. Le canal de dérivation 30 est ainsi conçu et configuré pour assurer la collecte et le détournement d'une partie du flux d'air forcé produit par le module de soufflerie 2 - avant que ledit flux d'air ne soit, le cas échéant, réchauffé par l'élément chauffant 16 - afin de guider et de souffler la partie du flux d'air ainsi prélevée au plus près du module électronique 26 pour assurer un refroidissement forcé de ce dernier.This is why the hairdressing appliance 1 according to the invention comprises, very interestingly, a diversion channel 30 which is designed to capture part of the air flow generated by the blower module 2 in order to ensure the cooling of said electronic module 26. The diversion channel 30 is thus designed and configured to ensure the collection and diversion of part of the forced air flow produced by the blower module 2 - before said air flow or, where appropriate, heated by the heating element 16 - in order to guide and blow the part of the air flow thus taken as close as possible to the electronic module 26 to ensure forced cooling of the latter.

Selon l'invention, ledit canal de dérivation 30 s'étend au moins en partie dans ledit manche 4. Le canal de dérivation 30 est ainsi avantageusement intégré au manche 4. De manière plus préférentielle encore, l'appareil de coiffure 1 pourra être conçu de sorte que le canal de guidage 7 et le canal de dérivation 30 s'étendent parallèlement l'un à l'autre au sein du manche 4, avantageusement selon le premier axe A-A' d'extension de ce dernier.According to the invention, said diversion channel 30 extends at least partly in said handle 4. The diversion channel 30 is thus advantageously integrated into the handle 4. Even more preferably, the hairdressing appliance 1 may be designed so that the guide channel 7 and the diversion channel 30 extend parallel to each other within the handle 4, advantageously along the first axis A-A' of extension of the latter.

Par exemple, dans le mode de réalisation préférentiel illustré aux figures, le canal de dérivation 30 de l'appareil de coiffure 1 débouche avantageusement, d'une part, au niveau de la sortie d'air de la chambre de travail 11 du module de soufflerie 2, pour y capter une partie du flux d'air (frais, c'est-à-dire non encore réchauffé par l'élément chauffant 16) généré par le module de soufflerie 2 et, d'autre part, au voisinage immédiat du module électronique 26 qui est logé dans la tête de soufflage 3.For example, in the preferred embodiment illustrated in the figures, the diversion channel 30 of the hairdressing appliance 1 advantageously opens, on the one hand, at the level of the air outlet of the working chamber 11 of the hairdressing module. blower 2, to capture part of the air flow (fresh, that is to say not yet heated by the heating element 16) generated by the blower module 2 and, on the other hand, in the immediate vicinity of the electronic module 26 which is housed in the blowing head 3.

Comme illustré en exemple à la figure 5, ledit canal de dérivation 30 peut être formé, selon toute ou partie de la longueur du manche 4, par un espace libre ménagé entre une paroi intérieure du manche 4 et une paroi extérieure de l'isolant thermique 18 tubulaire. Une telle conception permet en outre avantageusement de refroidir le manche 4, ce qui améliore le confort d'utilisation de l'appareil de coiffure 1.As shown in example in figure 5 , said diversion channel 30 can be formed, along all or part of the length of the handle 4, by a free space provided between an interior wall of the handle 4 and an exterior wall of the tubular thermal insulator 18. Such a design also advantageously allows the handle 4 to be cooled, which improves the comfort of use of the hairdressing appliance 1.

Ledit canal de dérivation 30 peut avantageusement se prolonger, au niveau de la tête de soufflage 3, à l'intérieur d'un mur 31 à double paroi formant un dos de l'élément tubulaire coudé 24, puis à travers le support 29, évoqué ci-dessus, par l'intermédiaire duquel le module électronique 26 est avantageusement fixé à l'élément tubulaire coudé 24.Said diversion channel 30 can advantageously extend, at the level of the blowing head 3, inside a double-walled wall 31 forming a back of the bent tubular element 24, then through the support 29, mentioned above, via which the electronic module 26 is advantageously fixed to the bent tubular element 24.

De manière avantageuse, l'appareil de coiffure 1 peut comprendre un circuit de réinjection de la partie de flux d'air captée dans le flux d'air (principal) soufflé par la tête de soufflage 3, de sorte qu'après avoir contribué au refroidissement du module électronique 26, la partie du flux d'air qui a été captée par le canal de dérivation 30 peut être elle-même soufflée en direction des cheveux de l'utilisateur par l'intermédiaire de la ou les sorties d'air 19, 20 de la tête de soufflage 3. De la sorte, le refroidissement du module électronique 26 n'impacte sensiblement pas le débit du flux d'air généré par le module de soufflerie 2 et soufflé par la tête de soufflage 3.Advantageously, the hairdressing appliance 1 can comprise a circuit for re-injecting the part of the air flow captured into the (main) air flow blown by the blowing head 3, so that after having contributed to the cooling of the electronic module 26, the part of the air flow which has been captured by the diversion channel 30 can itself be blown towards the user's hair via the air outlet(s) 19, 20 of the blowing head 3. In this way, the cooling of the module electronic 26 does not significantly impact the flow rate of the air flow generated by the blower module 2 and blown by the blower head 3.

Par exemple, le corps de tuyère 22 de la tête de soufflage 3 pourra être pourvu d'un orifice (non illustré) de réinjection de la partie de flux d'air captée directement à l'intérieur du corps de tuyère 22, de préférence en aval de l'élément tubulaire coudé 24 du déflecteur 23.For example, the nozzle body 22 of the blowing head 3 may be provided with an orifice (not illustrated) for reinjection of the part of the air flow captured directly inside the nozzle body 22, preferably in downstream of the bent tubular element 24 of the deflector 23.

De manière alternative (ou complémentaire), l'enveloppe externe 21 de la tête de soufflage 3 peut être pourvue d'ouïes (ou équivalent) par lesquelles tout ou partie de la partie de flux d'air captée peut s'échapper hors de la tête de soufflage 3, et donc hors de l'appareil de coiffure 1. Ainsi, la partie du flux d'air utilisée pour refroidir le module électronique 26 peut être rejetée vers l'extérieur de l'appareil 1 de coiffure sans impacter (ou à tout le moins sans impacter de manière significative) la température du flux d'air (principal) soufflé par la tête de soufflage 3 en direction des cheveux de l'utilisateur.Alternatively (or complementary), the external envelope 21 of the blowing head 3 can be provided with vents (or equivalent) through which all or part of the part of the air flow captured can escape out of the blowing head 3, and therefore outside the hairdressing appliance 1. Thus, the part of the air flow used to cool the electronic module 26 can be rejected towards the outside of the hairdressing appliance 1 without impacting (or at the very least without significantly impacting) the temperature of the (main) air flow blown by the blowing head 3 towards the user's hair.

Le canal de dérivation 30 est avantageusement dimensionné en fonction du niveau de refroidissement recherché, selon la température que peut effectivement supporter le module électronique 26. Typiquement, ledit canal de dérivation 30 pourra être dimensionné afin de permettre le passage en son sein d'un débit d'air compris entre 1 et 10 m3/h, pour permettre un refroidissement efficace du module électronique 26.The diversion channel 30 is advantageously sized as a function of the desired level of cooling, depending on the temperature that the electronic module 26 can effectively withstand. Typically, said diversion channel 30 may be sized in order to allow a flow rate to pass through it. of air between 1 and 10 m 3 /h, to allow effective cooling of the electronic module 26.

Un tel canal de dérivation 30 permet ainsi un refroidissement particulièrement simple, efficace et très peu coûteux du module électronique 26 sans qu'il soit nécessaire de recourir à des moyens de refroidissement complémentaires encombrants, qu'ils soient passifs (par exemple, de type radiateur à ailettes) et / ou actifs (par exemple, de type un ventilateur).Such a bypass channel 30 thus allows particularly simple, effective and very inexpensive cooling of the electronic module 26 without it being necessary to resort to bulky additional cooling means, whether passive (for example, of the radiator type finned) and/or active (for example, fan type).

L'appareil de coiffure 1 présente ainsi une grande fiabilité de fonctionnement, tout en étant de conception simple, compacte et peu coûteuse.The hairdressing device 1 thus has great operational reliability, while being simple, compact and inexpensive in design.

Claims (11)

  1. Hairstyling device (1) comprising a blower module (2) for generating an air flow, a blower head (3), an electronic module (26), which electronic module is housed within said blower head (3), and a bypass channel (30) designed to capture a portion of the air flow generated by the blower module (2) in order to cool said electronic module (20), the hairstyling device (1) comprising a handle (4), which extends between a first end (5) and a second opposite end (6), said blower head (3) being connected to the handle (4) at said second end (6), said blower module (2) being arranged within said handle (4) or being assembled to the handle (4) at said first end (5), characterized in that said bypass channel (30) extends at least partially into said handle (4).
  2. Device (1) according to the preceding claim, wherein said electronic module (26) is designed to ensure the management or the control of the operation of said hairstyling device (1).
  3. Device (1) according to the preceding claim, wherein said electronic module (26) is designed to manage the operation of said blower module (2).
  4. Device (1) according to the preceding claim, wherein said blower module (2) comprises a brushless electric motor (9), the management of which is ensured by the electronic module (26).
  5. Device (1) according to any one of the preceding claims, which comprises a circuit for reinjecting said portion of air flow captured by the bypass channel (30), in the air flow blown by the blower head (3).
  6. Device (1) according to any one of the preceding claims, wherein the handle (4) comprises a channel (7) for guiding the air flow generated by the blower module (2) in the direction of the blower head (3).
  7. Device (1) according to the preceding claim,
    wherein said guiding channel (7) and said bypass channel (30) extend parallel to one another within the handle (4).
  8. Device (1) according to any one of the preceding claims, which comprises a heating element (16) to increase the temperature of the air flow generated by said blower module (2), which heating element (16) is arranged within said handle (4).
  9. Device (1) according to any one of the preceding claims, wherein said blower head (3) is movably mounted relative to the handle (4).
  10. Device (1) according to the preceding claim, wherein said blower head (3) is rotatably movably mounted relative to the handle (4).
  11. Device (1) according to any one of claims 9 and 10, wherein said blower head (3) is movably mounted relative to said electronic module (26).
EP19828790.6A 2018-12-28 2019-12-26 Hairstyling device with a cooled electronic module Active EP3902441B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1874307A FR3091152B1 (en) 2018-12-28 2018-12-28 COOLED ELECTRONIC MODULE HAIRDRESSING DEVICE
PCT/EP2019/087052 WO2020136228A1 (en) 2018-12-28 2019-12-26 Hairstyling device with a cooled electronic module

Publications (2)

Publication Number Publication Date
EP3902441A1 EP3902441A1 (en) 2021-11-03
EP3902441B1 true EP3902441B1 (en) 2024-03-13

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EP19828790.6A Active EP3902441B1 (en) 2018-12-28 2019-12-26 Hairstyling device with a cooled electronic module

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EP (1) EP3902441B1 (en)
CN (1) CN111374427A (en)
FR (1) FR3091152B1 (en)
WO (1) WO2020136228A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832706U (en) * 1981-08-27 1983-03-03 小原　良隆 hair dryer
US20160220004A1 (en) * 2013-07-05 2016-08-04 Dyson Technology Limited Hand held appliance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729774A1 (en) * 1987-09-05 1989-03-16 Krups Stiftung ELECTRICALLY POWERED HAND HAIR DRYER
US6732449B2 (en) * 2000-09-15 2004-05-11 Walter Evanyk Dryer/blower appliance with efficient waste heat dissipation
US20080116753A1 (en) * 2006-11-17 2008-05-22 Vito James Carlucci Appliances with brushless motors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832706U (en) * 1981-08-27 1983-03-03 小原　良隆 hair dryer
US20160220004A1 (en) * 2013-07-05 2016-08-04 Dyson Technology Limited Hand held appliance

Also Published As

Publication number Publication date
CN111374427A (en) 2020-07-07
FR3091152B1 (en) 2021-10-15
EP3902441A1 (en) 2021-11-03
FR3091152A1 (en) 2020-07-03
WO2020136228A1 (en) 2020-07-02

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