Hairdryer nozzle, hairdryer, associated hair treatment system and method of use

Abstract

Hairdryer nozzle, hairdryer, associated hair treatment system and method of use The present invention relates to a hairdryer nozzle (14) comprising: - at least one electrical component (38, 42); - a connection device (40) comprising a mechanical linking member configured to cooperate removably with a complementary linking member of an air outlet end (30) of a body (20) of a hairdryer (12). The connection device (40) is configured to provide a complementary electrical connection between the at least one electrical component (38, 42) and an electrical power supply system (22) of the hairdryer (12).

Description

[0001] DESCRIPTION

[0002] TITLE: Hairdryer nozzle, hairdryer, associated hair treatment system and method of use

[0003] The present invention relates to a nozzle for a hairdryer, the nozzle comprising at least one electrical component and a connection device comprising a mechanical linking member configured to cooperate removably with a complementary linking member of an air outlet end of a hairdryer body.

[0004] To dry wet hair quickly, it is known to use a hairdryer blowing hot air.

[0005] In a known manner, a hairdryer comprises a motor generating an air flow, which can be heated by a heating element, for example resistive, and then blown on the hair.

[0006] However, such hairdryers are not entirely satisfactory.

[0007] Indeed, only a portion of the heat from the hot air flow reaches the hair to be dried, the remainder being absorbed by the surrounding air.

[0008] Therefore, conventional hairdryers overheat the blown air flow, which results in excess energy consumption.

[0009] There is therefore a need to improve the energy efficiency of such hairdryers.

[0010] Moreover, prolonged exposure of hair to an overly hot air flow damages it during drying, in particular by drying out the hair roots, which may for example cause hair breakage and / or dullness.

[0011] Moreover, it may be desirable to combine hot air with other hair treatment energies, for example to protect said hair or to activate a cosmetic formulation.

[0012] Furthermore, it may be desirable to adapt the operating settings of the hairdryer, for example to limit hair damage during drying.

[0013] An aim of the invention is that of providing a hairdryer nozzle allowing optimized use of the hairdryer.

[0014] To this end, the present invention relates to a nozzle for a hairdryer, the nozzle comprising at least one electrical component and a connection device comprising a mechanical linking member configured to cooperate removably with a complementary linking member of an air outlet end of a hairdryer body. The connection device is configured to provide a complementary electrical connection between the at least one electrical component and an electrical power supply system of the hairdryer. Thus by providing an electrical connection of the nozzle on the hairdryer, it is possible to provide "active" nozzles capable of delivering a complementary treatment to the hair, for example by delivering additional energy to the hair during drying.

[0015] Additionally or alternatively, it is also possible to provide "passive" nozzles for adapting the operating settings of the hairdryer.

[0016] The hot air flow temperature and also the operating time of the hot air flow generation means may thus be adapted. The energy efficiency of the hairdryers is therefore improved. Moreover, the use of such a nozzle limits hair damage during drying.

[0017] Moreover, electrical and mechanical connection of the nozzle on the hairdryer is easy to carry out with the connection device.

[0018] In a particular embodiment of the invention, the at least one electrical component comprises a component for identification of the nozzle by the hairdryer.

[0019] The component for identification of the nozzle by the hairdryer allows the hairdryer, and in particular its control means, to identify the nozzle and therefore adapt the operation of the hairdryer and optionally the nozzle, for example by adapting the hot air flow generation in the presence of the nozzle.

[0020] In a particular embodiment of the invention, the identification component comprises a voltage divider bridge, a Hall effect sensor, an identification chip and / or a radioidentification antenna.

[0021] Such a nozzle detection device allows reliable detection by the hairdryer, while remaining easy to integrate in the nozzle.

[0022] In a particular embodiment of the invention, the at least one electrical component comprises an energy generation device.

[0023] Such an energy generation device makes it possible to deliver a complementary treatment to the hair.

[0024] In a particular embodiment of the invention, the energy generation device comprises a plasma generator.

[0025] In a particular embodiment of the invention, the plasma generator comprises a high- voltage electrode covered with a dielectric material.

[0026] Generating a plasma generates a protective layer in the form of a plasma on the hair, thus protecting it from the hot air and from drying out. Furthermore, in the case of color application, the colorants are rendered more available by the plasma, thus increasing their hold on the hair.

[0027] In a particular embodiment of the invention, the energy generation device comprises a device for emitting light of a predetermined wavelength, in particular an infrared light. Emitting light of a predetermined wavelength on the hair supplies additional heat to the hair, which dries it more quickly and / or activates a cosmetic formulation, while drying the hair.

[0028] In a particular embodiment of the invention, the mechanical linking member of the connection device comprises at least two electrical connection pins (capable of being inserted and sliding in annular grooves arranged in the air outlet end of the hairdryer body, each groove comprising an at least partially peripheral and preferably totally peripheral electrical track forming a closed loop; or the mechanical linking member of the connection device comprises at least two annular grooves arranged in the nozzle, each groove comprising an at least partially peripheral and preferably totally peripheral electrical track forming a closed loop and being capable of cooperating with an electrical pin attached to the air outlet end of the hairdryer body.

[0029] The cooperation of the electrical connection pins with the annular grooves makes it possible to carry out both mechanical and electrical connection of the nozzle on the hairdryer simply.

[0030] The invention also relates to a hairdryer comprising a body defining an air outlet end comprising a complementary mechanical linking member, and an electrical power supply system. The complementary mechanical linking member is configured to cooperate removably with a mechanical linking member of a nozzle connection device, so as to provide a complementary electrical connection between at least one electrical component of the nozzle and the electrical power supply system of the hairdryer.

[0031] The invention also relates to a hair treatment system comprising: a hairdryer comprising a body defining an air outlet end comprising a complementary mechanical linking member, and an electrical power supply system; and a nozzle as described hereinabove.

[0032] The mechanical linking member of the connection device is capable of cooperating removably with the complementary mechanical linking member of the air outlet end of the hairdryer body and the connection device is configured to provide a complementary electrical connection between the at least one electrical component of the nozzle and the electrical power supply system of the hairdryer.

[0033] In a particular embodiment of the invention, when the nozzle is attached onto the body by the connection device, the nozzle is rotatable relative to the body along an axis of rotation perpendicular to the air outlet end, the complementary electrical connection between the at least one electrical component of the nozzle and the electrical power supply system of the hairdryer is at least partially provided during the rotation of said nozzle. The rotational mobility of the nozzle on the hairdryer allows the user to position the nozzle according to a desired angular position.

[0034] In a particular embodiment of the invention, the system furthermore comprises a brush comprising a body intended to come into contact with the hair, the body comprising a first electrically conductive element.

[0035] The first conductive element promotes plasma generation and stability.

[0036] In a particular embodiment of the invention, the brush comprises a gripping handle attached to the brush body, the gripping handle comprising a second electrically conductive element.

[0037] The second conductive element makes it possible to set the brush to the same electrical potential as the user.

[0038] The invention also relates to a method for using a hair treatment system comprising the following steps: providing a system as described hereinabove, mounting the nozzle on the air outlet end of the hairdryer body, electrical power supply of the at least one electrical component of the nozzle from the electrical power supply system via the connection device.

[0039] In a particular embodiment of the invention, the at least one electrical component comprises an energy generation device comprising a plasma generator, the method comprising generating a plasma by the plasma generator and applying the plasma on the hair.

[0040] In a particular embodiment of the invention, the at least one electrical component comprises an identification component, the method comprising a step of identifying the nozzle and a step of adapting the operating settings of the hairdryer according to the nozzle identified.

[0041] The invention will become more apparent upon reading the following description, given solely as a non-limiting example, and made with reference to the appended drawings, wherein:

[0042] [Fig. 1] Figure 1 is a schematic side view of a hair drying system comprising a hairdryer nozzle according to a first embodiment of the invention; and

[0043] [Fig. 2] Figure 2 is a schematic side view of a hair drying system comprising a hairdryer nozzle according to a second embodiment of the invention. Figure 1 illustrates a hair treatment system 10 comprising a hairdryer 12, a nozzle 14, and optionally a brush 16.

[0044] The system 10 is adapted to dry hair 18, in particular a user’s hair 18. Drying means evaporating the water or liquid covering said hair 18.

[0045] The hairdryer 12 comprises a body 20 and an electrical power supply system 22.

[0046] Preferably, the hairdryer 12 also comprises a device 24 for generating a hot air flow.

[0047] Advantageously, the hairdryer 12 also comprises a control unit 25.

[0048] The electrical power supply system 22 is for example a battery.

[0049] Alternatively, the electrical power supply system 22 is a wired connection to an electrical power supply network.

[0050] In particular, the electrical power supply system 22 is capable of delivering a high AC voltage, preferably of a rated voltage between 1 kV and 20 kV.

[0051] The body 20 comprises for example a main part 26 for guiding an air flow and a gripping handle 28.

[0052] The main part 26 extends for example along a main axis A-A’.

[0053] As illustrated in Figure 1 , the main part 26 has for example a substantially cylindrical shape along the main axis A-A’, and more particularly, perpendicular to the gripping handle 28.

[0054] The body 20 defines an air outlet end 30, comprising a complementary mechanical linking member, and advantageously a hot air flow outlet opening.

[0055] The air outlet end 30 is advantageously defined in the main part 26 of the body 20 at a distance from the gripping handle 28.

[0056] More particularly, the air outlet end 30 extends perpendicularly to the main axis A-A’.

[0057] Preferably, the air outlet end 30 has an annular shape, thus defining a substantially circular hot air flow outlet opening 31 . The hot air flow outlet opening 31 has for example a diameter between 4 cm and 12 cm.

[0058] Preferably, the body 20 also defines an air inlet end 32, advantageously comprising an air inlet opening configured to allow an entry of external air into the body 20.

[0059] Preferably, in the embodiment illustrated in Figure 1 , the complementary mechanical linking member of the air outlet end 30 comprises at least two annular grooves 34 arranged in the air outlet end 30, and preferably three or four annular grooves 34.

[0060] Advantageously, each groove 34 extends along the entire circumference of the air outlet end 30.

[0061] Each groove 34 comprises an electrical track 36A, 36B, 36C. Advantageously, each electrical track 36A, 36B, 36C extends along all of a bottom 35 of the groove 34.

[0062] Preferably, at least one of the electrical tracks 36A, 36B, and preferably two, are electrically connected to the electrical power supply system 22, for example by electrical wires as illustrated in Figure 1.

[0063] Preferably, at least one of the electrical tracks 36A, 36B, and preferably two, are capable of transmitting a voltage supplied by the electrical power supply system 22.

[0064] Advantageously, the body 20 contains a transformer configured to increase the electrical voltage received from the electrical power supply system 22 and produce a high AC voltage intended to be supplied to the nozzle 14. The high AC voltage is for example greater than 1 kV and in particular between 1 kV and 20 kV.

[0065] In the embodiment of Figure 1 , one of the electrical tracks 36C is electrically connected to an ohmmeter 37 configured to measure the voltage in said electrical track 36C. The ohmmeter 37 is advantageously connected to the control unit 25.

[0066] The hot air flow generation device 24 comprises, for example, a fan actuated by a motor preferably configured to draw in air via the air inlet end 32. Furthermore, the hot air flow generation device 24 comprises a heating element, for example a resistive element, configured to heat the air drawn in so as to create a hot air flow capable of being blown via the air outlet end 30.

[0067] Advantageously, the hot air flow generation device 24 is powered electrically by the electrical power supply system 22.

[0068] The control unit 25 of the hairdryer 12 is configured to control the hot air flow generation device 24, for example the temperature and blowing speed of the hot air.

[0069] The hairdryer nozzle 14 comprises at least one electrical component 38, 42, a connection device 40 of the nozzle 14 to the hairdryer 12 and advantageously a device 42 for detection of the nozzle 14 by the hairdryer 12.

[0070] As illustrated in Figure 1 , the nozzle 14 has preferably a hollow shape and advantageously defines a hot air flow circulation duct 44 extending along a nozzle axis B- B’ between a first end 45 and a second end 47.

[0071] Preferably, the nozzle axis B-B’ is merged with the main axis A-A’ when the nozzle 14 is connected to the hairdryer 12.

[0072] Advantageously, the nozzle 14 is convergent. Thus, the circulation duct 44 converges from the first end 45 to the second end 47.

[0073] Advantageously, when the nozzle 14 is attached to the body 20 of the hairdryer 12 by the connection device 40, the nozzle 14 is rotatable relative to the body 20 along the main axis A-A’. The connection device 40 comprises a mechanical linking member capable of cooperating removably with the complementary mechanical linking member of the air outlet end 30 of the body 20 of the hairdryer 12.

[0074] In particular, the cooperation of the mechanical linking member of the connection device 40 of the nozzle 14 and the complementary mechanical linking member of the air outlet end 30 of the body 20 of the hairdryer 12 mechanically connects the nozzle 14 detachably to the air outlet end 30 of the body 20 of the hairdryer 12.

[0075] Moreover, the connection device 40 is configured to provide a complementary electrical connection between the or each electrical component 38, 42 of the nozzle 14 and the electrical power supply system 22 of the hairdryer 12.

[0076] Preferably, in the embodiment illustrated in Figure 1 , the mechanical linking member of the connection device 40 comprises at least two electrical connection pins 48A, 48B, 48C capable of being inserted and sliding in one of the corresponding annular grooves 34 arranged in the air outlet end 30 of the body 20 of the hairdryer 12.

[0077] Advantageously, the mechanical linking member of the connection device 40 comprises the same number of electrical connection pins 48A, 48B, 48C as the complementary mechanical linking member of the air outlet end 30 of the body 20 comprises annular grooves 34, for example three electrical connection pins 48A, 48B, 48C as illustrated in Figure 1.

[0078] As illustrated in Figure 1 , the electrical connection pins 48A, 48B, 48C extend for example projecting from the first end 45 of the nozzle 14.

[0079] Preferably, each electrical connection pin 48A, 48B, 48C is capable of snap-fitting into the corresponding groove 34.

[0080] Advantageously, each electrical connection pin 48A, 48B, 48C is capable of sliding along the entire circumference of the corresponding groove 34, so as to allow the rotation of the nozzle 14 relative to the body 20 of the hairdryer 12, while providing at least partially the complementary electrical connection between the or each electrical component 38, 42 of the nozzle 14 and the electrical power supply system 22 of the hairdryer 12.

[0081] Preferably, the tip of each electrical connection pin 48A, 48B, 48C comes into contact with the electrical track 36A, 36B, 36C of the groove 34, so as to allow a selective electrical connection between said pin 48A, 48B, 48C of the nozzle 14 selectively with an electrical track 36A, 36B, 36C of the hairdryer body 20, and therefore with the electrical power supply system 22.

[0082] As illustrated in Figure 1 , at least one of the electrical connection pins 48A is advantageously electrically connected to the or to each electrical component 38, 42, for example by means of an electrical wire. The connection of said pin 48A to the electrical track 36A, 36B, 36C of the corresponding groove 34 thus allows a connection of the or each electrical component 38, 42 of the nozzle 14 to the electrical power supply system 22 of the hairdryer 12. More particularly, in this way, the electrical power supply system 22 is capable of delivering a high AC voltage to the or to each electrical component 38, 42 of the nozzle 14, preferably of a rated voltage between 1 kV and 20 kV.

[0083] Advantageously, the mechanical linking member of the connection device 40 further comprises a magnet 50 capable of cooperating with a metallic surface of the body 20.

[0084] In the embodiment illustrated in the Figures, the at least one electrical component comprises an identification component 42 and an energy generation device 38.

[0085] Alternatively, the at least one electrical component only comprises an identification component 42, thus defining a "passive" nozzle, or only an energy generation device 38, thus defining an "active" nozzle.

[0086] The identification component 42 is configured so that the nozzle 14 is identified by the hairdryer 12 during their connection by the connection device 40.

[0087] In the embodiment of Figure 1 , the identification component 42 comprises a voltage divider bridge, in particular comprising a resistive component 52 electrically connected between two electrical connection pins 48B, 48C of the nozzle 14.

[0088] In particular, in this embodiment, one of the electrical connection pins 48B, referred to as input pin, is configured to be supplied with an input voltage by an electrical power supply system 22 of the body 20 during the connection of the nozzle 14 with the hairdryer 12. The other of the electrical connection pins 48C, referred to as output pin, is configured to be connected to the electrical track 36C connected to the ohmmeter 37. The voltage measured by the ohmmeter 37 allows detection of the nozzle 14 connected by the hairdryer 12, and in particular by the control unit 25 of the hairdryer 12.

[0089] Advantageously, the resistance value of the resistive component 52 is specific to each nozzle 14, such that the voltage measured by the ohmmeter 37 is different according to the nozzle 14 connected. The control unit 25 of the hairdryer 12 is thus capable of identifying which nozzle 14 is connected from a plurality of known nozzles 14.

[0090] Alternatively or additionally, the identification component 42 comprises a Hall effect sensor, an identification chip and / or a radio-identification antenna, for example of the NFC (Near-Field Communication) type.

[0091] The energy generation device 38 is capable of delivering an energy 46 to the hair 18 which is added to the thermal energy received by the hair via the hot air flow. Said energy 46 is adapted to act upon the hair 18 and advantageously makes it possible, in addition to the hot air flow, to dry the hair 18. As illustrated in Figure 1 , the energy generation device 38 is for example a plasma generator.

[0092] Preferably, the plasma generator 38 comprises a high-voltage electrode 56 covered with a dielectric material 58.

[0093] The dielectric material 58 is, for example, a ceramic material or a plastic material.

[0094] The plasma generator 38 is capable of generating a plasma which is applied directly on the hair 18 in a first embodiment. In a second embodiment, the brush 16 may be used to distribute the plasma on the hair 18.

[0095] The brush 16 comprises a body 60 ad advantageously a gripping handle 62 attached to the body 60.

[0096] The body 60 of the brush 16 is intended to come into contact with the hair 18 and defines for example a contact surface 61 with the hair 18.

[0097] Preferably, as illustrated in Figure 1 , the body 60 of the brush 16 comprises teeth and / or bristles 64 extending projecting at least from said surface 61 of the body 60.

[0098] Advantageously, the body 60 of the brush 16 comprises a first electrically conductive element 66.

[0099] As illustrated in Figure 1 , the first electrically conductively element 66 is for example a metallic layer covering at least the contact surface 61.

[0100] Advantageously, the gripping handle 62 of the brush 16 comprises a second electrically conductive element 68.

[0101] As illustrated in Figure 1 , the second electrically conductive element 68 is for example a metallic layer in contact with the first electrically conductive element 66.

[0102] The first electrically conductive element 66 and / or the second electrically conductive element 68 are for example made of aluminum.

[0103] An example of a method for using a hair treatment system 10 will now be described.

[0104] A hair treatment system 10 comprising a hairdryer 12 and a nozzle 14 as described hereinabove is first provided.

[0105] The nozzle 14 is then attached to the air outlet end 30 of the body 20 of the hairdryer 12 via the connection device 40.

[0106] In particular, in the embodiment illustrated in Figure 1 , the connection pins 48A, 48B, 48C of the nozzle 14 are inserted in the annular grooves 34 of the body 20 of the hairdryer 12.

[0107] The user may then position the nozzle 14 according to a desired angular position by sliding the connection pins 48A, 48B, 48C in the annular grooves 34. Following this connection, the electrical power supply system 22 electrically supplies the at least one electrical component 38, 42 of the nozzle 14.

[0108] More specifically, the electrical power supply system 22 supplies, advantageously after passing in the transformer, a high AC voltage to the or to each electrical component 38, 42 of the nozzle 14, preferably of a rated voltage between 1 kV and 20 kV.

[0109] In the embodiment of Figure 1 wherein the nozzle 14 comprises an identification component 42, the hairdryer 12 identifies the nozzle 14.

[0110] More specifically, the electrical power supply 22 of the body 20 of the hairdryer 12 supplies voltage to the electrical connection pin 48B connected both to the resistive component 52 and to the corresponding electrical track 36B connected to the electrical power supply 22.

[0111] The ohmmeter 37 then measures the output voltage of the electrical connection pin 48C to which it is connected by the corresponding electrical track 36C and preferably communicates it to the control unit 25.

[0112] Given that the output voltage is different from that supplied by the electrical power supply system 22 of the hairdryer 12, the control unit 25 thus identifies that the nozzle 14 is connected.

[0113] Following this step of identifying the nozzle 14, the method comprises a step of adapting the operating settings of the hairdryer 12.

[0114] More specifically, the control unit 25 determines, according to the nozzle 14 identified, the operating settings of the hairdryer 12, such as for example the hot air flow generation temperature.

[0115] Optionally, the user holds the brush 16, separates a portion of the hair 18 using the brush 16, and in particular using the teeth and / or bristles 64 of the brush 16. The user then positions them close to the second end 47 of the nozzle 14.

[0116] Following the control of the control unit 25, the hot air flow generation device 24 is activated so as to generate a hot air flow at the defined control temperature.

[0117] In particular, the hot air flow generated is blown at the air outlet end 30 of the hairdryer 12, then passes via the duct 44 arranged in the nozzle 14, then is blown toward the hair 18 by the second end 47 of the nozzle 14.

[0118] In the embodiment of Figure 1 wherein the nozzle 14 also comprises an energy generation device 38, the energy generation device 38 delivers in parallel an additional energy to the hair 18 having, preferably, also the effect of drying the hair.

[0119] For example, in the embodiment of Figure 1 , the energy generation device 38 generates a plasma on the hair 18. Preferably, the plasma is generated on the hair 18 held between the contact surface 61 of the body 60 of the brush 16 and the nozzle 14.

[0120] Advantageously, the first conductive element 66 acts as a counter-electrode relative to the electrode 56 of the energy generation device 38, and thus makes it possible to promote plasma generation and stability between the electrode 56 and the counterelectrode.

[0121] Such a nozzle 14 for hairdryer 12 thus delivers an additional energy to the hair 18 during drying, which makes it possible to deliver a complementary treatment to the hair during drying and / or be identified by the hairdryer so as to adapt the operating settings of the hairdryer.

[0122] The hot air flow temperature and also the operating time of the hot air flow generation device 24 may thus be adapted, which prevents for example damaging the hair by applying an excessively high thermal energy.

[0123] Moreover, in the embodiment of Figure 1 , the plasma makes it possible to define a protective layer on the hair 18, thus protecting it from the hot air and from drying out.

[0124] The use of such a nozzle 14 limits hair damage during drying.

[0125] Moreover, electrical and mechanical connection of the nozzle 14 on the hairdryer 12 is easy to carry out with the connection device 40.

[0126] Variants of the invention will now be described. Only the features differing from the features of the embodiment previously described will be described hereinafter.

[0127] In a variant of the invention not illustrated, the mechanical linking member of the connection device 40 does not comprise connection pins, but comprises at least two annular grooves arranged in the nozzle 14, and in particular on the first end 45 of said nozzle 14. Each groove comprises an electrical track and is capable of cooperating with an electrical connection pin attached to the air outlet end 30 of the body 20 of the hairdryer 12. In this variant, the complementary mechanical linking member of the air outlet end 30 of the body 20 comprises at least two electrical connection pins.

[0128] In a second embodiment of the invention illustrated in Figure 2, the energy generation device 38 is not a plasma generator, but a device for emitting light of a predetermined wavelength.

[0129] For example, the energy generation device 38 is a device for emitting an infrared light, in particular of a wavelength between 780 nm and 1 mm. Emitting an infrared light thus supplies additional heat to the hair, and therefore dries it more quickly.

[0130] Alternatively, the predetermined wavelength is chosen so as to activate a cosmetic formulation on the hair, for example a hair coloring and / or care formulation.

[0131] According to another example, the energy generation device 38 is a microcurrent, radiofrequency or ultrasound emission device.

[0132] In a further variant, a plurality of energy generation devices 38 are borne by the nozzle 14, chosen from a plasma generator, a light, microcurrent, radiofrequency or ultrasound emission device.

[0133] In another variant, the nozzle 14 bears a transformer configured to increase the electrical voltage received by the connection device 40 of the electrical power supply system 22 and supply a high AC voltage to the or to each electrical component 38, 42.

[0134] In another embodiment of the invention, each electrical track 36A, 36B, 36C does not extend along all of the bottom 35 of the groove 34, but only along a portion or a plurality of non-adjacent portions of the bottom 35 of the groove 34. A rotation of the nozzle 14 relative to the body 20 of the hairdryer 12 thus results in an interruption of the complementary electrical connection between the at least one electrical component 38, 42 and an electrical power supply system 22 of the hairdryer 12, which makes it possible for example to switch off the electrical component 38, 42 and / or adapt the operating settings by rotation.

Claims

CLAIMS1. Hairdryer nozzle (14) comprising: o at least one electrical component (38, 42); o a connection device (40) comprising a mechanical linking member configured to cooperate removably with a complementary linking member of an air outlet end (30) of a body (20) of a hairdryer (12); characterized in that the connection device (40) is configured to provide a complementary electrical connection between the at least one electrical component (38, 42) and an electrical power supply system (22) of the hairdryer (12).

2. Nozzle (14) according to claim 1 , wherein the at least one electrical component (42) comprises a component for identification of the nozzle (14) by the hairdryer (12).

3. Nozzle (14) according to claim 2, wherein the identification component (42) comprises a voltage divider bridge, a Hall effect sensor, an identification chip and / or a radio-identification antenna.

4. Nozzle (14) according to any one of the preceding claims, wherein the at least one electrical component (38) comprises an energy generation device.

5. Nozzle (14) according to claim 4, wherein the energy generation device (38) comprises a plasma generator.

6. Nozzle (14) according to claim 5, wherein the plasma generator comprises a high-voltage electrode (56) covered with a dielectric material (58).

7. Nozzle (14) according to any one of claims 4 to 6, wherein the energy generation device (38) comprises a device for emitting light of a predetermined wavelength, in particular an infrared light.

8. Nozzle (14) according to any one of the preceding claims, wherein the mechanical linking member of the connection device (40) comprises at least two electrical connection pins (48A, 48B, 48C) capable of being inserted and sliding in annulargrooves (34) arranged in the air outlet end (30) of the body (20) of the hairdryer (12), each groove (34) comprising an at least partially peripheral and preferably totally peripheral electrical track (36A, 36B, 36C) forming a closed loop; or the mechanical linking member of the connection device (40) comprises at least two annular grooves arranged in the nozzle (14), each groove comprising an at least partially peripheral and preferably totally peripheral electrical track forming a closed loop and being capable of cooperating with an electrical connection pin attached to the air outlet end (30) of the body (20) of the hairdryer (12).

9. Hairdryer (12) comprising: a body (20) defining an air outlet end (30), comprising a complementary mechanical linking member, and an electrical power supply system (22); characterized in that the complementary mechanical linking member is configured to cooperate removably with a mechanical linking member of a connection device (40) of a nozzle (14), so as to provide a complementary electrical connection between at least one electrical component (38, 42) of the nozzle (14) and the electrical power supply system (22) of the hairdryer (12).

10. Hair treatment system (10) comprising: a hairdryer (12) comprising: o a body (20) defining an air outlet end (30), comprising a complementary mechanical linking member , and o an electrical power supply system (22); and a nozzle (14) according to any one of claims 1 to 8, the mechanical linking member of the connection device (40) of the nozzle (14) being capable of cooperating removably with the complementary mechanical linking member (34) of the air outlet end (30) of the body (20) of the hairdryer (12) and the connection device (40) is configured to provide a complementary electrical connection between the at least one electrical component (38, 42) of the nozzle (14) and the electrical power supply system (22) of the hairdryer (12).

11. System (10) according to claim 10, wherein when the nozzle (14) is attached onto the body (20) by the connection device (40), the nozzle (14) is rotatablerelative to the body (20) along an axis of rotation (A-A’) perpendicular to the air outlet end (30), the complementary electrical connection between the at least one electrical component (38, 42) of the nozzle (14) and the electrical power supply system (22) of the hairdryer (12) being at least partially provided during the rotation of said nozzle (14).

12. System (10) according to claim 10 or 11 , furthermore comprising a brush (16) comprising a body (60) intended to come into contact with the hair (18), the body (60) comprising a first electrically conductive element (66).

13. System (10) according to claim 12, wherein the brush (16) comprises a gripping handle (62) attached to the body (60) of the brush (16), the gripping handle (62) comprising a second electrically conductive element (68).

14. Method for using a hair treatment system (10) comprising the following steps: providing a system according to any one of claims 10 to 13, mounting the nozzle (14) on the air outlet end (30) of the body (20) of the hairdryer (12), electrical power supply of the at least one electrical component (38, 42) of the nozzle (14) from the electrical power supply system (22) via the connection device (40).

15. Method according to claim 14, wherein the at least one electrical component (38, 42) comprises an energy generation device (38) comprising a plasma generator, the method comprising generating a plasma by the plasma generator and applying the plasma on the hair (18).

16. Method according to claim 14 or 15, wherein the at least one electrical component (42) comprises an identification component, the method comprising a step of identifying the nozzle (14) and a step of adapting the operating settings of the hairdryer (12) according to the nozzle (14) identified.

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