Hair dryer attachment, hair dryer, hair treatment system and associated operating instructions

Abstract

Hair dryer nozzle, hair dryer, hair treatment system and associated operating method. The present invention relates to a hair dryer nozzle (14) comprising: - at least one electrical component (38, 42); - a connecting device (40) comprising a mechanical linkage configured to cooperate removably with a complementary mechanical linkage on an air outlet end (30) of a hair dryer body (20) (12). The connecting device (40) is configured to provide a complementary electrical connection between the at least one electrical component (38, 42) and a power supply system (22) of the hair dryer (12). Figure for the abstract: Figure 1

Description

Title of the invention: Hair dryer nozzle, hair dryer, hair treatment system and associated method of use

[0001] The present invention relates to a hair dryer nozzle, the nozzle comprising at least one electrical component and a connection device comprising a mechanical linking member configured to cooperate removably with a complementary mechanical linking member of an air outlet end of a hair dryer body.

[0002] To quickly dry wet hair, it is known to use a hair dryer blowing hot air.

[0003] In a known manner, a hair dryer includes a motor generating an airflow, which can be heated by a heating element, for example resistive, and then blown onto the hair.

[0004] However, such hair dryers are not entirely satisfactory.

[0005] Indeed, only a portion of the heat from the hot airflow reaches the hair at to dry, the rest being absorbed by the surrounding air.

[0006] Traditional hair dryers therefore overheat the blown airflow, which leads to excessive energy consumption.

[0007] There is therefore a need to improve the energy efficiency of such hair dryers.

[0008] Furthermore, prolonged exposure of hair to an excessively hot airflow damages it during drying, particularly by drying out the hair roots, which can, for example, cause breakage and / or dullness of the hair.

[0009] Furthermore, 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.

[0010] In addition, it may be desirable to adapt the operating parameters of the hair dryer, for example to limit damage to the hair during drying.

[0011] One aim of the invention is therefore to provide a hair dryer attachment allowing for optimized use of the hair dryer.

[0012] To this end, the invention relates to a hair dryer nozzle, the nozzle comprising at least one electrical component and a connection device comprising a mechanical linkage configured to cooperate removably with a complementary mechanical linkage at an air outlet end of a hair dryer body. The connection device is configured to ensure an additional electrical connection between at least one electrical component and a power supply system of the hair dryer.

[0013] Thus, by ensuring an electrical connection of the nozzle to the hair dryer, it is possible to provide "active" nozzles capable of delivering additional treatment to the hair, for example by delivering additional energy to the hair during drying.

[0014] As a complement or alternative, it is also possible to provide "passive" nozzles allowing the operating parameters of the hair dryer to be adapted.

[0015] The temperature of the hot air stream and also the operating time of the hot air generation device can thus be adjusted. The energy efficiency of the hair dryers is therefore improved. Furthermore, the use of such a nozzle limits hair damage during drying.

[0016] Furthermore, the electrical and mechanical connection of the nozzle to the hair dryer is easily achieved by the connection device.

[0017] In a particular embodiment of the invention, at least one electrical component includes a component for identifying the nozzle by the hair dryer.

[0018] The hair dryer nozzle identification component allows the hair dryer, and in particular its control means, to identify the nozzle and thus adapt the operation of the hair dryer and possibly of the nozzle, for example by adapting the generation of the hot air flow to the presence of the nozzle.

[0019] 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 radio-identification antenna.

[0020] Such a nozzle detection device allows reliable detection by the hair dryer, while remaining easy to integrate into the nozzle.

[0021] In a particular embodiment of the invention, at least one electrical component includes a power generation device.

[0022] Such an energy generation device makes it possible to deliver a complementary treatment to the hair.

[0023] In a particular embodiment of the invention, the energy generation device comprises a plasma generator.

[0024] In a particular embodiment of the invention, the plasma generator comprises a high-voltage electrode covered with a dielectric material.

[0025] Plasma generation creates a protective layer in the form of a plasma on the hair, thus protecting it from hot air and drying out. Furthermore, when hair color is applied, the plasma makes the colorants more available, thereby increasing their retention on the hair.

[0026] In a particular embodiment of the invention, the energy generation device comprises a light emission device of a predetermined wavelength, in particular infrared light.

[0027] The emission of light of a predetermined wavelength onto the hair provides 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 (adapted to be inserted and slid into annular grooves formed in the air outlet end of the hair dryer body, each groove comprising an electrical track that is at least partially peripheral and preferably totally peripheral forming a closed loop; or the mechanical linking member of the connection device comprises at least two annular grooves formed in the nozzle, each groove comprising an electrical track that is at least partially peripheral and preferably totally peripheral forming a closed loop and being adapted to cooperate with an electrical connection pin fixed to the air outlet end of the hair dryer body.

[0029] The cooperation of the electrical connection pins with the annular grooves makes it possible to achieve both the mechanical and electrical connection of the nozzle on the hair dryer in a simple way.

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

[0031] The invention also relates to a hair treatment system comprising: - a hair dryer comprising a body defining an air outlet end including a complementary mechanical linkage, and an electrical power supply system; and - a nozzle as described previously.

[0032] The mechanical linking member of the nozzle connection device is adapted to cooperate removably with the complementary mechanical linking member of the air outlet end of the hair dryer body, and the connection device is configured to ensure a complementary electrical connection between at least one electrical component of the nozzle and the electrical power supply system of the hair dryer.

[0033] In a particular embodiment of the invention, when the nozzle is fixed to the body by the connection device, the nozzle is mobile in rotation relative to the body along an axis of rotation perpendicular to the air outlet end, the complementary electrical connection between at least one electrical component of the nozzle and the electrical power supply system of the hair dryer is at least partially ensured during the rotation of said nozzle.

[0034] The rotational mobility of the nozzle on the hair dryer allows the user to position the nozzle according to a desired angular position.

[0035] In a particular embodiment of the invention, the system further comprises a brush including a body intended to come into contact with the hair, the body including a first electrically conductive element.

[0036] The first conductive element promotes the generation and stability of the plasma.

[0037] In a particular embodiment of the invention, the brush includes a gripping handle fixed to the body of the brush, the gripping handle comprising a second electrically conductive element.

[0038] The second conductive element allows the brush to be brought to the same electrical potential as the user.

[0039] The invention also relates to a method of using a hair treatment system comprising the following steps: - provision of a system as described above, - mounting the nozzle onto the air outlet end of the hair dryer body, - power supply to at least one electrical component of the tip from the power supply system through the connection device.

[0040] In a particular embodiment of the invention, at least one electrical component comprises an energy generation device including a plasma generator, the method comprising the generation of a plasma by the plasma generator and the application of the plasma to the hair.

[0041] In a particular embodiment of the invention, at least one electrical component includes an identification component, the method comprising a step of identifying the nozzle and a step of adapting the operating parameters of the hair dryer according to the identified nozzle.

[0042] The invention will become clearer upon reading the following description, given solely by way of non-limiting example, and made with reference to the accompanying drawings, in which:

[0043] [Fig. 1] [Fig. 1] is a schematic side view of a hair drying system comprising a hair dryer nozzle according to a first embodiment of the invention; and

[0044] [Fig.2] [Fig.2] is a schematic side view of a system for drying hair dryer including a hair dryer attachment according to a second embodiment of the invention.

[0045] Fig. 1 illustrates a system 10 for hair treatment comprising a hair dryer 12, a nozzle 14, and optionally a brush 16.

[0046] The system 10 is adapted for drying hair 18, in particular the hair 18 of a user. By drying, we mean evaporating the water or liquid that coats said hair 18.

[0047] The hair dryer 12 comprises a body 20 and a power supply system 22.

[0048] Preferably, the hair dryer 12 also includes a device 24 for generating a hot airflow.

[0049] Advantageously, the hair dryer 12 also includes a control unit 25.

[0050] The power supply system 22 is, for example, a battery.

[0051] Alternatively, the power supply system 22 is a wired connection to an electrical power supply network.

[0052] In particular, the power supply system 22 is capable of delivering high alternating voltage, preferably with a nominal voltage between 1 kV and 20 kV

[0053] The body 20 includes, for example, a main part 26 for guiding an airflow and a gripping handle 28.

[0054] The main part 26 extends for example along a main axis A-A'.

[0055] As illustrated in [Fig.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.

[0056] The body 20 defines an air outlet end 30, comprising a complementary mechanical linking element, and advantageously an outlet opening for the hot air flow.

[0057] 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.

[0058] More specifically, the air outlet end 30 extends perpendicularly to the main axis A-A'.

[0059] Preferably, the air outlet end 30 has an annular shape, thus defining a substantially circular hot air outlet opening 31. The hot air outlet opening 31 has, for example, a diameter between 4 cm and 12 cm.

[0060] Preferably, the body 20 also defines an air inlet end 32, advantageously comprising an air inlet opening configured to allow outside air to enter the body 20.

[0061] Preferably, in the embodiment illustrated in [Fig.1], the complementary mechanical linking member of the air outlet end 30 comprises at least two annular grooves 34 provided in the air outlet end 30, and preferably three or four annular grooves 34.

[0062] Advantageously, each groove 34 extends over the entire circumference of the air outlet end 30.

[0063] Each groove 34 includes an electrical track 36A, 36B, 36C.

[0064] Advantageously, each electrical track 36A, 36B, 36C extends over the entire bottom 35 of the groove 34.

[0065] Preferably, at least one of the electrical tracks 36A, 36B, and preferably two, are electrically connected to the power supply system 22, for example by electrical wires as illustrated in [Fig.1].

[0066] More particularly, at least one of the electrical tracks 36A, 36B, and preferably two, are capable of transmitting a voltage supplied by the power supply system 22.

[0067] Advantageously, the body 20 contains a transformer configured to increase the electrical voltage received from the power supply system 22 and produce an alternating high voltage intended to be supplied to the nozzle 14. The alternating high voltage is, for example, greater than 1 kV and in particular between 1 kV and 20 kV.

[0068] In the embodiment of [Fig. 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.

[0069] The hot air flow generation device 24 includes, for example, a fan driven by a motor preferably configured to draw air in through the air inlet end 32. In addition, the hot air flow generation device 24 includes a heating element, for example a resistive element, configured to heat the drawn-in air so as to create a hot air flow suitable for being blown out through the air outlet end 30.

[0070] Advantageously, the hot air flow generation device 24 is electrically powered by the power supply system 22.

[0071] The control unit 25 of the hair dryer 12 is configured to control the hot air flow generation device 24, for example the temperature and the speed of hot air blowing.

[0072] The hair dryer nozzle 14 includes at least one electrical component 38, 42, a connection device 40 for the nozzle 14 to the hair dryer 12 and advantageously a detection device 42 for the nozzle 14 by the hair dryer 12.

[0073] As illustrated in [Fig.1], the nozzle 14 preferably has a hollow shape and advantageously defines a hot air flow circulation conduit 44 extending along a nozzle axis B-B' between a first end 45 and a second end 47.

[0074] Preferably, the nozzle axis B-B' coincides with the main axis A-A' when the nozzle 14 is connected to the hair dryer 12.

[0075] Advantageously, the end 14 is convergent. Thus, the circulation conduit 44 converges from the first end 45 towards the second end 47.

[0076] Advantageously, when the nozzle 14 is fixed on the body 20 of the hair dryer 12 by the connection device 40, the nozzle 14 is mobile in rotation relative to the body 20 along the main axis A-A'.

[0077] The connection device 40 includes a mechanical linking member adapted to cooperate removably with the complementary mechanical linking member of the air outlet end 30 of the body 20 of the hair dryer 12.

[0078] 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 hair dryer 12 mechanically connects the nozzle 14 in a detachable manner to the air outlet end 30 of the body 20 of the hair dryer 12.

[0079] Furthermore, the connection device 40 is configured to provide an additional electrical connection between the electrical component(s) 38, 42 of the nozzle 14 and the power supply system 22 of the hair dryer 12.

[0080] Preferably, in the embodiment illustrated in [Fig.1], the mechanical linking member of the connection device 40 comprises at least two electrical connection pins 48A, 48B, 48C suitable for inserting and sliding into one of the corresponding annular grooves 34 provided in the air outlet end 30 of the hair dryer body 20 12.

[0081] 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 [Fig.1].

[0082] As illustrated in [Fig.1], the electrical connection pins 48A, 48B, 48C extend for example in projection from the first end 45 of the tip 14.

[0083] Preferably, each electrical connection pin 48A, 48B, 48C is suitable for snapping into the corresponding groove 34.

[0084] Advantageously, each electrical connection pin 48A, 48B, 48C is able to slide 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 hair dryer 12, while at least partially ensuring the additional electrical connection between the electrical component(s) 38, 42 of the nozzle 14 and the electrical supply system 22 of the hair dryer 12.

[0085] 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 permit a selective electrical connection between said pin 48A, 48B, 48C of the nozzle 14 selectively with an electrical track 36A, 36B, 36C of the body 20 of the hair dryer, and thus with the electrical supply system 22.

[0086] As illustrated in [Fig.1], at least one of the electrical connection pins 48A is advantageously electrically connected to or to each electrical component 38, 42, for example by means of an electrical wire.

[0087] 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 power supply system 22 of the hair dryer 12. More particularly, by this means, the power supply system 22 is able to provide a high alternating voltage to the or each electrical component 38, 42 of the nozzle 14, preferably with a nominal voltage between 1 kV and 20 kV.

[0088] Advantageously, the mechanical linking member of the connecting device 40 further comprises a magnet 50 suitable for cooperating with a metallic surface of the body 20.

[0089] In the embodiment illustrated in the Figures, at least one electrical component comprises an identification component 42 and a power generation device 38.

[0090] Alternatively, the at least one electrical component comprises only an identification component 42, thus defining a "passive" tip, or only an energy generation device 38, thus defining an "active" tip.

[0091] The identification component 42 is configured so that the nozzle 14 is identified by the hair dryer 12 when they are connected by the connection device 40.

[0092] In the embodiment of [Fig. 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 tip 14.

[0093] In particular, in this embodiment, one of the electrical connection pins 48B, referred to as the input pin, is configured to be supplied with an input voltage by the power supply system 22 of the body 20 when the nozzle 14 is connected to the hair dryer 12. The other electrical connection pin 48C, referred to as the output pin, is configured to be connected to the electrical trace 36C connected to the ohmmeter 37. The voltage measured by the ohmmeter 37 enables detection of the nozzle 14 connected by the hair dryer 12, and in particular by the control unit 25 of the hair dryer 12.

[0094] Advantageously, the resistance value of the resistive component 52 is specific to each nozzle 14, so that the voltage measured by the ohmmeter 37 differs depending on which nozzle 14 is connected. The control unit 25 of the hair dryer 12 is thus able to identify which nozzle 14 is connected from among a plurality of known nozzles 14.

[0095] Alternatively or additionally, the identification component 42 includes a Hall effect sensor, an identification chip and / or a radio-identification antenna, for example of the NFC (Near-Field Communication) type.

[0096] The energy generation device 38 is capable of delivering energy 46 to the hair 18, which is added to the thermal energy that the hair receives via the hot air flow. This energy 46 is suitable for acting on the hair 18 and advantageously allows, in addition to the hot air flow, the hair 18 to be dried.

[0097] As illustrated in [Fig.1], the energy generation device 38 is, for example, a plasma generator.

[0098] Preferably, the plasma generator 38 comprises a high-voltage electrode 56 coated with a dielectric material 58.

[0099] The dielectric material 58 is, for example, a ceramic material or a plastic material.

[0100] The plasma generator 38 is adapted to generate a plasma that is applied directly to the hair 18 in a first embodiment. In a second embodiment, the brush 16 can be used to distribute the plasma onto the hair 18.

[0101] The brush 16 comprises a body 60 and advantageously a gripping handle 62 fixed to the body 60.

[0102] 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.

[0103] Preferably, as illustrated in [Fig.1], the body 60 of the brush 16 includes teeth and / or bristles 64 extending in projection at least from said surface 61 of the body 60.

[0104] Advantageously, the body 60 of the brush 16 includes a first electrically conductive element 66.

[0105] As illustrated in [Fig.1], the first electrically conductive element 66 is, for example, a metallic layer covering at least the contact surface 61.

[0106] Advantageously, the grip handle 62 of the brush 16 includes a second electrically conductive element 68.

[0107] As illustrated in [Fig.1], the second electrically conductive element 68 is, for example, a metallic layer in contact with the first electrically conductive element 66.

[0108] The first electrically conductive element 66 and / or the second electrically conductive element 68 are, for example, made of aluminum.

[0109] An example of a method for using such a system 10 for hair treatment will now be described.

[0110] A hair drying system 10 comprising a hair dryer 12 and a nozzle 14 as described above is first provided.

[0111] The nozzle 14 is then fixed onto the air outlet end 30 of the hair dryer body 20 12 by means of the connection device 40.

[0112] In particular, in the embodiment illustrated in [Fig.1], the connection pins 48A, 48B, 48C of the nozzle 14 are inserted into the annular grooves 34 of the body 20 of the hair dryer 12.

[0113] The user can then position the tip 14 according to a desired angular position by sliding the connecting pins 48A, 48B, 48C in the annular grooves 34.

[0114] Following this connection, the power supply system 22 electrically supplies at least one electrical component 38, 42 of the tip 14.

[0115] More specifically, the power supply system 22 provides, advantageously after passing through the transformer, a high alternating voltage to or to each electrical component 38, 42 of the tip 14, preferably with a nominal voltage between 1 kV and 20 kV.

[0116] In the embodiment of [Fig.1] in which the nozzle 14 includes an identification component 42, the hair dryer 12 identifies the nozzle 14.

[0117] More specifically, the power supply system 22 of the body 20 of the hair dryer 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 power supply 22.

[0118] 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.

[0119] Since the output voltage is different from that supplied by the power supply system 22 of the hair dryer 12, the control means 25 thus identifies that the nozzle 14 is connected.

[0120] Following this step of identifying the nozzle 14, the process includes a step of adapting the operating parameters of the hair dryer 12.

[0121] More specifically, the control unit 25 determines, according to the identified nozzle 14, the operating parameters of the hair dryer 12, such as the temperature for generating the hot air flow.

[0122] Optionally, the user grasps the brush 16, isolates 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 near the second end 47 of the nozzle 14.

[0123] Following the command of the control unit 25, the hot air flow generation device 24 is activated so as to generate a hot air flow at the determined control temperature.

[0124] In particular, the generated hot air flow is blown at the air outlet end 30 of the hair dryer 12, then passes through the conduit 44 provided in the nozzle 14, and is then blown towards the hair 18 through the second end 47 of the nozzle 14.

[0125] In the embodiment of [Fig.1] in which the nozzle 14 also includes an energy generation device 38, the energy generation device 38 delivers additional energy in parallel to the hair 18, preferably also having the effect of drying the hair.

[0126] For example, in the embodiment of [Fig.1], the energy generation device 38 generates a plasma on the hair 18.

[0127] Preferably, the plasma is generated on the hair 18 taken between the contact surface 61 of the body 60 of the brush 16 and the tip 14.

[0128] Advantageously, the first conductive element 66 acts as a counter electrode with respect to the electrode 56 of the energy generation device 38, and thus helps to promote the generation and stability of the plasma between the electrode 56 and the counter electrode.

[0129] Such a nozzle 14 for hair dryer 12 thus delivers additional energy to the hair 18 during drying, which allows for additional treatment to be delivered to the hair during drying and / or for the hair dryer to be identified so as to adapt the operating parameters of the hair dryer.

[0130] The temperature of the hot air flow and also the operating time of the hot air flow generation device 24 can thus be adapted, which avoids, for example, damaging the hair by applying too much thermal energy.

[0131] Furthermore, in the embodiment of [Fig. 1], the plasma makes it possible to define a protective layer on the hair 18, thus protecting it from hot air and drying out.

[0132] The use of such a nozzle 14 further limits the damage to the hair during drying.

[0133] Furthermore, the electrical and mechanical connection of the nozzle 14 on the hair dryer 12 is easily achieved by the connection device 40.

[0134] Variants of the invention will now be described. Only features differing from those of the embodiment described above will be described subsequently.

[0135] In a non-illustrated embodiment of the invention, the mechanical linking member of the connection device 40 does not include connecting pins, but includes at least two annular grooves formed in the nozzle 14, and in particular on the first end 45 of said nozzle 14. Each groove includes an electrical track and is adapted to cooperate with an electrical connection pin fixed to the air outlet end 30 of the hair dryer body 20 12. In this embodiment, the complementary mechanical linking member of the air outlet end 30 of the body 20 includes at least two electrical connection pins.

[0136] In a second embodiment of the invention illustrated in [Fig.2], the energy generation device 38 is not a plasma generator, but a light emission device of a predetermined wavelength.

[0137] For example, the energy generation device 38 is a device for emitting infrared light, in particular with a wavelength between 780 nm and 1 mm.

[0138] The emission of infrared light thus provides additional heat to the hair, and therefore dries it more quickly.

[0139] Alternatively, the predetermined wavelength is chosen so as to activate a cosmetic formulation on the hair, for example a hair coloring and / or hair care formulation.

[0140] According to another example, the energy generation device 38 is a micro-current, radio frequency or ultrasound emitting device.

[0141] In yet another variant, a plurality of energy generation devices 38 are carried by the tip 14, chosen from a plasma generator, a light emission device, a micro-current, a radio frequency or an ultrasound device.

[0142] In another embodiment, the tip 14 carries a transformer configured to increase the electrical voltage received by the connection device 40 of the power supply system 22 and provide an alternating high voltage to the electrical component or components 38, 42.

[0143] In another embodiment of the invention, each electrical track 36A, 36B, 36C does not extend over the entire bottom 35 of the groove 34, but only over 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 hair dryer 12 thus causes an interruption of the complementary electrical connection between the at least electrical component 38, 42 and an electrical power supply system 22 of the hair dryer 12, which makes it possible, for example, to switch off the electrical component 38, 42 and / or to adapt the operating parameters by rotation.

Claims

Demands

1. Hair dryer nozzle (14) comprising: • at least one electrical component (38, 42); • a connecting device (40) comprising a mechanical linking member configured to cooperate removably with a complementary mechanical linking member of an air outlet end (30) of a hair dryer body (20) (12);characterized in that the connection device (40) is configured to provide a complementary electrical connection between at least one electrical component (38, 42) and a power supply system (22) of the hair dryer (12), wherein the mechanical linking member of the connection device (40) comprises at least two electrical connection pins (48A, 48B, 48C) adapted to be inserted and slid into annular grooves (34) provided in the air outlet end (30) of the body (20) of the hair dryer (12), each groove (34) comprising an electrical track (36A, 36B, 36C) at least partially peripheral and preferably totally peripheral forming a closed loop;or the mechanical linking member of the connection device (40) comprises at least two annular grooves formed in the nozzle (14), each groove comprising an electrical track that is at least partially peripheral and preferably totally peripheral, forming a closed loop and being able to cooperate with an electrical connection pin fixed to the air outlet end (30) of the body (20) of the hair dryer (12).

2. Nozzle (14) according to claim 1, wherein at least one electrical component (42) includes a component for identifying the nozzle (14) by the hair dryer (12).

3. Tip (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. Tip (14) according to any one of the preceding claims, wherein at least one electrical component (38) comprises a power generation device.

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

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

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

8. Hair dryer (12) comprising: - a body (20) defining an air outlet end (30) including a complementary mechanical linking member (34), and - a power supply system (22); characterized in that the complementary mechanical linking member (34) is configured to cooperate removably with a mechanical linking member of a connection device (40) of a nozzle (14), so as to ensure a complementary electrical connection between at least one electrical component (38, 42) of the nozzle (14) and the power supply system (22) of the hair dryer (12).

9. A system (10) for hair treatment comprising: - a hair dryer (12) comprising: • a body (20) defining an air outlet end (30) including a complementary mechanical linkage (34), and • a power supply system (22); and - a nozzle (14) according to any one of claims 1 to 7, the mechanical linkage of the connection device (40) of the nozzle (14) being capable of removably cooperating with the complementary mechanical linkage (34) of the air outlet end (30) of the hair dryer body (20) (12), and the connection device (40) being configured to ensure a connection additional electrical connection between at least one electrical component (38, 42) of the nozzle (14) and the electrical supply system (22) of the hair dryer (12).

10. System (10) according to claim 9, wherein when the nozzle (14) is fixed to the body (20) by the connection device (40), the nozzle (14) is movable in rotation relative to the body (20) along an axis of rotation (A-A') perpendicular to the air outlet end (30), the complementary electrical connection between at least one electrical component (38, 42) of the nozzle (14) and the power supply system (22) of the hair dryer (12) being at least partially ensured during the rotation of said nozzle (14).

11. System (10) according to claim 9 or 10, further 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).

12. System (10) according to claim 11, wherein the brush (16) comprises a gripping handle (62) fixed to the body (60) of the brush (16), the gripping handle (62) comprising a second electrically conductive element (68).

13. Method of using a system (10) for hair treatment comprising the following steps: - providing a system according to any one of claims 9 to 12, - mounting the nozzle (14) on the air outlet end (30) of the body (20) of the hair dryer (12), - supplying power to at least one electrical component (38, 42) of the nozzle (14) from the power supply system (22) through the connection device (40).

14. A method according to claim 13, wherein at least one electrical component (38, 42) comprises a power generation device (38) comprising a plasma generator, the method comprising the generation of a plasma by the plasma generator and the application of the plasma to the hair (18).

15. A method according to claim 13 or 14, wherein at least one electrical component (42) comprises an identification component, the method comprising a tip identification step (14) and a step of adapting the operating parameters of the hair dryer (12) according to the nozzle (14) identified.

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