Hair dryer

Abstract

The utility model discloses a hair dryer, comprising a hair dryer main body and a comb tooth accessory detachably connected to the hair dryer main body, the hair dryer main body comprising an air outlet, the air outlet being provided with a magnetic metal part, the interior of the hair dryer main body being provided with a circuit board and a laser device, the circuit board comprising an electrically connected power module and a control module, the magnetic metal part being electrically connected to the power module, the laser device being used to emit a laser in the direction of the air outlet, the laser device being electrically connected to the control module; the comb tooth accessory being provided with a plurality of metal comb teeth, when the metal comb teeth are in contact with the scalp or hair, the metal comb teeth, the magnetic metal part and the power module forming a conduction loop, the control module being used to control the laser device to turn on according to the electrical signal of the conduction loop. The utility model controls the laser device to turn on when the metal comb teeth are in contact with the scalp or hair, this design effectively prevents the laser from directly shooting into the eyes, and prevents the laser from causing damage to the user's eyes, and the design is very user-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a hair dryer. Background Art

[0002] With the development of science and technology, smart home appliance control technology has become an indispensable part of modern life. Among them, hair dryers, as a common household appliance, are also increasingly in need of intelligent control. At the same time, laser irradiation technology can be used in medical, beauty and other fields. In existing hair-drying technologies, hair dryers with laser functions usually stay on for a long time after the laser is turned on. When users, especially minors, use the products, they cannot effectively avoid direct laser exposure to their eyes, which may cause damage to the user's eyes. Summary of the invention

[0003] The utility model aims to provide a hair dryer to solve the problem that the laser on the existing hair dryer may cause damage to the user's eyes after being lit.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a hair dryer, comprising a hair dryer main body and a comb tooth accessory detachably connected to the hair dryer main body, the hair dryer main body comprising an air outlet, the air outlet being provided with a magnetic metal part, a circuit board and a laser device are also provided inside the hair dryer main body, the circuit board comprising an electrically connected power module and a control module, the magnetic metal part being electrically connected to the power module, the laser device being used to emit a laser in the direction of the air outlet, and the laser device being electrically connected to the control module; the comb tooth accessory being provided with a sensing contact corresponding to the magnetic metal part, the comb tooth accessory being also provided with a plurality of metal comb teeth, when the metal comb teeth are in contact with the scalp or hair, the metal comb teeth, the sensing contact, the magnetic metal part and the power module form a conduction loop, and the control module being used to control the laser device to turn on according to the electrical signal of the conduction loop.

[0005] Preferably, the magnetically attractive metal part includes a first positive metal part, a first negative metal part, a second positive metal part and a second negative metal part arranged at intervals, and the power module includes a first positive power pole electrically connected to the first positive metal part, a first negative power pole electrically connected to the first negative metal part, a second positive power pole electrically connected to the second positive metal part, and a second negative power pole electrically connected to the second negative metal part.

[0006] Preferably, the comb tooth accessory is provided with a first sensing contact corresponding to the first positive metal piece, a second sensing contact corresponding to the first negative metal piece, a third sensing contact corresponding to the second positive metal piece, and a fourth sensing contact corresponding to the second negative metal piece, the first sensing contact is electrically connected to the second sensing contact, the third sensing contact is electrically connected to the fourth sensing contact, the control module includes a first pin electrically connected to the positive pole of the first power supply, a second pin connected to the positive pole of the second power supply, a third pin electrically connected to the negative pole of the first power supply, and a fourth pin electrically connected to the negative pole of the second power supply, the plurality of metal comb teeth form a first group of comb teeth and a second group of comb teeth, the first group The bottom of the comb teeth is connected by a first metal connection part, and the bottom of the second group of comb teeth is connected by a second metal connection part. The first metal connection part and the second metal connection part are arranged at intervals. The first metal connection part is electrically connected to the first sensing contact and the second sensing contact. The second metal connection part is electrically connected to the third sensing contact and the fourth sensing contact. When the comb tooth accessory is connected to the hair dryer body and the first group of comb teeth and the second group of comb teeth contact the hair or scalp, the first pin is connected to the second pin, or the first pin is connected to the fourth pin, or the third pin is connected to the second pin, or the third pin is connected to the fourth pin to control the laser device to turn on.

[0007] Preferably, the blowing body includes a shell and a mounting bracket arranged at the air outlet, the mounting bracket is provided with a first annular air outlet channel located in the middle, and a first positive metal part, a first negative metal part, a second positive metal part and a second negative metal part are installed on the mounting bracket and arranged around the first air outlet channel.

[0008] Preferably, the laser device includes a plurality of laser emitters, and the plurality of laser emitters are arranged on the inner side of the mounting bracket. The mounting bracket is provided with a plurality of through holes corresponding to the plurality of laser emitters, and the through holes are arranged on the outer periphery of the magnetic metal part, and a light-transmitting plate is also provided above the through holes.

[0009] Preferably, a magnetic part is provided on the comb tooth accessory corresponding to the magnetic metal part so as to be magnetically connected to the hair dryer body, and the comb tooth accessory includes a mounting plate, the mounting plate includes a bottom surface and a comb tooth surface opposite to the bottom surface, the bottom surface is provided with a first mounting port and a second mounting port, the magnetic part includes a first magnetic part and a second magnetic part, the first magnetic part is installed in the first mounting port, the second magnetic part is installed in the second mounting port, and a plurality of metal comb teeth are provided on the comb tooth surface.

[0010] Preferably, the comb tooth accessory includes a mounting plate, the mounting plate includes a bottom surface and a comb tooth surface opposite to the bottom surface, the first sensing contact and the second sensing contact are spaced apart and arranged on one side of the bottom surface, the first sensing contact and the second sensing contact are connected via a first metal connector, the third sensing contact and the fourth sensing contact are spaced apart and arranged on the other side of the bottom surface, and the third sensing contact and the fourth sensing contact are connected via a second metal connector.

[0011] Preferably, the first positive metal piece, the first negative metal piece, the second positive metal piece and the second negative metal piece are all in strip shape.

[0012] Preferably, the first positive metal part is used to be magnetically connected to the first magnetic part and to be electrically connected to the first sensing contact, the first negative metal part is used to be magnetically connected to the second magnetic part and to be electrically connected to the second sensing contact, the second positive metal part is used to be magnetically connected to the first magnetic part and to be electrically connected to the third sensing contact, and the second negative metal part is used to be magnetically connected to the second magnetic part and to be electrically connected to the fourth sensing contact.

[0013] Preferably, a ring-shaped second air outlet channel is provided in the middle of the mounting plate corresponding to the first air outlet channel.

[0014] Compared with the prior art, the utility model provides a plurality of metal comb teeth on the comb tooth accessory to form a conductive circuit with the magnetic metal parts and the power module when the metal comb teeth come into contact with the scalp or hair to control the laser device to turn on. This design effectively prevents the laser from directly shining into the eyes and avoids the laser from damaging the user's eyes. The design is very user-friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the blowing body of an embodiment of the utility model.

[0016] Figure 2 for Figure 1 Cross-sectional structural diagram.

[0017] Figure 3 This is a structural diagram of the comb tooth accessory at one angle according to an embodiment of the utility model.

[0018] Figure 4 This is a structural diagram of the comb tooth accessory from another angle of the embodiment of the utility model.

[0019] Figure 5 This is a structural diagram of the first group of comb teeth, the first metal connecting part, the second group of comb teeth, and the second metal connecting part at an angle.

[0020] Figure 6This is a structural diagram of the first group of comb teeth, the first metal connecting part, the second group of comb teeth, and the second metal connecting part from another angle.

[0021] Figure 7 This is a circuit correspondence diagram of the circuit board, magnetic metal parts, and comb tooth accessories in the embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to explain the technical content, structural features and effects achieved by the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0023] like Figures 1 to 7 As shown, an embodiment of the utility model provides a hair dryer, including a hair dryer body 10 and a comb tooth accessory 20 detachably connected to the hair dryer body 10, the hair dryer body 10 includes an air outlet, the air outlet is provided with a magnetic metal part 3, the interior of the hair dryer body 10 is also provided with a circuit board 101 and a laser device 4, the circuit board 101 includes an electrically connected power module and a control module, the magnetic metal part 3 is electrically connected to the power module, the laser device 4 is used to emit a laser in the direction of the air outlet, and the laser device 4 is electrically connected to the control module; the comb tooth accessory 20 is provided with a sensing contact corresponding to the magnetic metal part 3, and the comb tooth accessory 20 is also provided with a plurality of metal comb teeth 202, when the metal comb teeth 202 are in contact with the scalp or hair, the metal comb teeth 202, the sensing contact, the magnetic metal part 3 and the power module form a conduction loop, and the control module is used to control the laser device 4 to turn on according to the electrical signal of the conduction loop. Specifically, the material of the magnetic metal part 3 can be metal iron, etc., and titanium metal can be electroplated on the surface of the metal iron to improve the corrosion resistance of the magnetic metal part 3 and ensure the conductivity of the magnetic metal part 3. When the metal comb teeth 202 are in contact with the scalp or hair, since the magnetic metal part 3, the sensing contacts, the metal comb teeth 202 and the human body are all conductors, the metal comb teeth 202, the sensing contacts, the magnetic metal part 3 and the power module can form a conduction loop so that the control module controls the laser device 4 to turn on according to the electrical signal of the conduction loop. When the metal comb teeth 202 are away from the scalp or hair, that is, the metal comb teeth 202 are not in contact with the scalp or hair, the control module does not obtain the electrical signal of the above-mentioned conduction loop, and the laser device 4 is turned off, thereby avoiding damage to the user's eyes. The design is very user-friendly.

[0024] In the embodiment of the utility model, a plurality of metal comb teeth 202 are provided on the comb tooth accessory 20 so that when the metal comb teeth 202 come into contact with the scalp or hair, a conductive circuit is formed with the magnetic metal part 3 and the power module to control the laser device 4 to turn on. This design effectively prevents the laser from directly shining into the eyes and avoids the laser from causing damage to the user's eyes. The design is very user-friendly.

[0025] In the embodiment of the utility model, Figure 1 and Figure 7As shown, the magnetic metal part 3 includes a first positive metal part 31, a first negative metal part 32, a second positive metal part 33 and a second negative metal part 34 which are arranged at intervals, and the power module includes a first positive power pole 1011 electrically connected to the first positive metal part 31, a first negative power pole 1012 electrically connected to the first negative metal part 32, a second positive power pole 1013 electrically connected to the second positive metal part 33 and a second negative power pole 1014 electrically connected to the second negative metal part 34.

[0026] In the embodiment of the utility model, Figures 1 to 7 As shown, the comb tooth accessory 20 is provided with a first sensing contact 61 corresponding to the first positive metal piece 31, a second sensing contact 62 corresponding to the first negative metal piece 32, a third sensing contact 63 corresponding to the second positive metal piece 33, and a fourth sensing contact 64 corresponding to the second negative metal piece 34, the first sensing contact 61 is electrically connected to the second sensing contact 62, the third sensing contact 63 is electrically connected to the fourth sensing contact 64, the control module includes a first pin electrically connected to the first positive power supply 1011, a second pin connected to the second positive power supply 1013, a third pin electrically connected to the first negative power supply 1012, and a fourth pin electrically connected to the second negative power supply 1014, and a plurality of metal comb teeth 202 form a first group of comb teeth 2021 and a second group of comb teeth 202 2. The bottom of the first group of comb teeth 2021 is connected through the first metal connecting part 2023, and the bottom of the second group of comb teeth 2022 is connected through the second metal connecting part 2024. The first metal connecting part 2023 and the second metal connecting part 2024 are arranged at intervals. The first metal connecting part 2023 is electrically connected to the first sensing contact 61 and the second sensing contact 62, and the second metal connecting part 2024 is electrically connected to the third sensing contact 63 and the fourth sensing contact 64. When the comb tooth accessory 20 is connected to the hair dryer body 10 and the first group of comb teeth 2021 and the second group of comb teeth 2022 contact the hair or scalp, the first pin is connected to the second pin, or the first pin is connected to the fourth pin, or the third pin is connected to the second pin, or the third pin is connected to the fourth pin to control the laser device 4 to turn on. Specifically, when the first group of comb teeth 2021 and the second group of comb teeth 2022 are in contact with the scalp or wet hair, the hair dryer body 10, the laser device 4, the scalp or the hair form a complete path, and when the first pin and the second pin of the control module are connected, or the first pin and the fourth pin are connected, or the third pin and the second pin are connected, or the third pin and the fourth pin are connected, it is determined that the comb tooth accessory 20 is in contact with the scalp / hair state, and the control module controls the laser irradiation. This design can effectively prevent the laser from directly shooting into the eyes and prevent the laser from causing damage to the user's eyes. The design is very user-friendly. It should be noted that the method of turning on the laser device is not limited, as long as the electrical signal is obtained through the conduction circuit to light the laser when the comb tooth accessory 20 is in contact with the scalp and / or hair.

[0027] In the embodiment of the utility model, the blower body 10 includes a shell 1 and a mounting bracket 2 arranged at the air outlet, the mounting bracket 2 is provided with a first annular air outlet channel 21 located in the middle, and the first positive metal member 31, the first negative metal member 32, the second positive metal member 33 and the second negative metal member 34 are installed on the mounting bracket 2 and arranged around the first air outlet channel 21. Specifically, as Figure 1 to Figure 2 As shown, the mounting bracket 2 is an annular plate structure, and an annular first air outlet channel 21 is provided in the middle of the mounting bracket 2 for the air outlet of the blowing body 10, and a mounting position for mounting the first positive metal member 31, the first negative metal member 32, the second positive metal member 33 and the second negative metal member 34 is provided on the mounting bracket 2. The first positive metal member 31, the first negative metal member 32, the second positive metal member 33 and the second negative metal member 34 are installed in the mounting position and the outer surfaces of the first positive metal member 31, the first negative metal member 32, the second positive metal member 33 and the second negative metal member 34 and the mounting bracket 2 are basically flush, and the first positive metal member 31, the first negative metal member 32, the second positive metal member 33 and the second negative metal member 34 are arranged around the outer periphery of the first air outlet channel 21.

[0028] In the embodiment of the utility model, the laser device 4 includes a plurality of laser emitters, which are arranged on the inner side of the mounting bracket 2. The mounting bracket 2 is provided with a plurality of through holes 22 corresponding to the plurality of laser emitters. The through holes 22 are arranged on the outer periphery of the magnetic metal part 3, and a light-transmitting plate 5 is also provided above the through holes 22. Specifically, as Figure 1 to Figure 2 As shown, the light-transmitting plate 5 is an optical-grade polycarbonate light-transmitting plate 5, which can withstand direct irradiation of the laser and ensure the intensity and uniformity of the light. A first coating 51 is provided on the surface of the light-transmitting plate 5, and a plurality of light-emitting openings 52 are provided on the first coating 51 corresponding to a plurality of lasers. The light-emitting openings 52 can be carved at the laser light-emitting portion on the first coating 51 by laser engraving, and the diameter of the light-emitting openings 52 is greater than or equal to 2 mm and less than or equal to 4 mm, so as to ensure normal emission of the laser.

[0029] In the embodiment of the utility model, a magnetic part 204 is provided on the comb tooth accessory 20 corresponding to the magnetic metal part 3 to be magnetically connected with the hair dryer body 10, and the comb tooth accessory 20 includes a mounting plate 201, and the mounting plate 201 includes a bottom surface 2011 and a comb tooth surface 2012 opposite to the bottom surface 2011, and the bottom surface 2011 is provided with a first mounting opening and a second mounting opening, and the magnetic part 204 includes a first magnetic part 2041 and a second magnetic part 2042, and the first magnetic part 2041 is installed in the first mounting opening, and the second magnetic part 2042 is installed in the second mounting opening, and a plurality of metal comb teeth 202 are provided on the comb tooth surface 2012. Specifically, as Figures 3 to 6As shown, the magnetic member 204 is specifically a magnet, etc., the metal comb teeth 202 are arranged around the outer ring of the mounting plate 201, and the first metal connecting part 2023 and the second metal connecting part 2024 are both arranged inside the mounting plate 201.

[0030] In the embodiment of the utility model, the first sensing contact 61 and the second sensing contact 62 are arranged at intervals and are arranged on one side of the bottom surface 2011, and the first sensing contact 61 and the second sensing contact 62 are connected by a first metal connector 65, and the third sensing contact 63 and the fourth sensing contact 64 are arranged at intervals and are arranged on the other side of the bottom surface 2011, and the third sensing contact 63 and the fourth sensing contact 64 are connected by a second metal connector 66. Specifically, as Figures 1 to 6 As shown, the first sensing contact 61, the second sensing contact 62, the third sensing contact 63 and the fourth sensing contact 64 are all mounted on the mounting plate 201 and protrude from the bottom surface 2011 to contact the magnetic metal member 3 of the hair dryer body 10. The first sensing contact 61, the second sensing contact 62, the third sensing contact 63 and the fourth sensing contact 64 can all be pogo pins. pin), the first sensing contact 61 and the second sensing contact 62 are arranged on one side of the bottom surface 2011, the third sensing contact 63 and the fourth sensing contact 64 are arranged on the other side of the bottom surface 2011, the first magnetic member 2041 and the second magnetic member 2042 are both arc-shaped and are respectively arranged at two ends of the bottom surface 2011, the first sensing contact 61 and the third sensing contact 63 are arranged close to the first magnetic member 2041, the second sensing contact 62 and the fourth sensing contact 64 are arranged close to the second magnetic member 2042, and the first magnetic member 2041, the first sensing contact 61, the second sensing contact 62, the second magnetic member 2042, the third sensing contact 63 and the fourth sensing contact 64 form a ring as a whole.

[0031] In the embodiment of the utility model, the first positive metal piece 31, the first negative metal piece 32, the second positive metal piece 33 and the second negative metal piece 34 are all in strip shape. Figure 1 As shown, the first positive metal member 31 , the first negative metal member 32 , the second positive metal member 33 and the second negative metal member 34 are arranged in a ring shape.

[0032] In the embodiment of the utility model, the first positive metal part 31 is used to be magnetically connected to the first magnetic part 2041 and to be electrically connected to the first sensing contact 61, the first negative metal part 32 is used to be magnetically connected to the second magnetic part 2042 and to be electrically connected to the second sensing contact 62, the second positive metal part 33 is used to be magnetically connected to the first magnetic part 2041 and to be electrically connected to the third sensing contact 63, the second negative metal part 34 is used to be magnetically connected to the second magnetic part 2042 and to be electrically connected to the fourth sensing contact 64, the first positive metal part 31, the first negative metal part 32, the second positive metal part 33 and the second negative metal part 34 are used for both electrical connection with the corresponding sensing contacts and for adsorption connection with the corresponding magnetic parts, and the design is ingenious.

[0033] In the embodiment of the utility model, a ring-shaped second air outlet channel 203 is provided in the middle of the mounting plate 201 corresponding to the first air outlet channel 21. Figure 3 As shown, a second annular air outlet channel 203 is provided on the mounting plate 201 to facilitate the air outlet of the comb tooth accessory 20. The embodiment of the utility model can realize the comb tooth function and the laser scalp care function while blowing air.

[0034] The above disclosure is only a preferred example of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A hair dryer, characterized in that: The hair dryer comprises a hair dryer body and a comb tooth accessory detachably connected to the hair dryer body, the hair dryer body comprises an air outlet, the air outlet is provided with a magnetic metal part, a circuit board and a laser device are also provided inside the hair dryer body, the circuit board comprises an electrically connected power module and a control module, the magnetic metal part is electrically connected to the power module, the laser device is used to emit a laser in the direction of the air outlet, and the laser device is electrically connected to the control module; The comb tooth accessory is provided with a sensing contact corresponding to the magnetic metal part, and the comb tooth accessory is also provided with a plurality of metal comb teeth. When the metal comb teeth come into contact with the scalp or hair, the metal comb teeth, the sensing contact, the magnetic metal part and the power module form a conduction loop, and the control module is used to control the laser device to turn on according to the electrical signal of the conduction loop.

2. The hair dryer according to claim 1, characterized in that The magnetically attracted metal part includes a first positive metal part, a first negative metal part, a second positive metal part and a second negative metal part which are arranged at intervals, and the power module includes a first positive power pole electrically connected to the first positive metal part, a first negative power pole electrically connected to the first negative metal part, a second positive power pole electrically connected to the second positive metal part, and a second negative power pole electrically connected to the second negative metal part.

3. The hair dryer according to claim 2, characterized in that: The comb tooth accessory is provided with a first sensing contact corresponding to the first positive metal piece, a second sensing contact corresponding to the first negative metal piece, a third sensing contact corresponding to the second positive metal piece, and a fourth sensing contact corresponding to the second negative metal piece, the first sensing contact is electrically connected to the second sensing contact, the third sensing contact is electrically connected to the fourth sensing contact, the control module includes a first pin electrically connected to the positive pole of the first power supply, a second pin connected to the positive pole of the second power supply, a third pin electrically connected to the negative pole of the first power supply, and a fourth pin electrically connected to the negative pole of the second power supply, the plurality of metal comb teeth form a first group of comb teeth and a second group of comb teeth, the first group of comb teeth The bottom of the second group of comb teeth is connected by a first metal connecting part, the bottom of the second group of comb teeth is connected by a second metal connecting part, the first metal connecting part and the second metal connecting part are arranged at an interval, the first metal connecting part is electrically connected to the first sensing contact and the second sensing contact, the second metal connecting part is electrically connected to the third sensing contact and the fourth sensing contact, and the comb tooth accessory is connected to the hair dryer body and the first group of comb teeth and the second group of comb teeth contact the hair or scalp, the first pin is connected to the second pin or the first pin is connected to the fourth pin or the third pin is connected to the second pin or the third pin is connected to the fourth pin to control the laser device to turn on.

4. The hair dryer according to claim 2, characterized in that: The blowing body includes a shell and a mounting bracket arranged at the air outlet, the mounting bracket is provided with a first annular air outlet channel located in the middle, a first positive metal part, a first negative metal part, a second positive metal part and a second negative metal part are installed on the mounting bracket and arranged around the first air outlet channel.

5. The hair dryer according to claim 4, characterized in that: The laser device includes a plurality of laser emitters, and the plurality of laser emitters are arranged on the inner side of the mounting bracket. The mounting bracket is provided with a plurality of through holes corresponding to the plurality of laser emitters. The through holes are arranged on the outer periphery of the magnetic metal part, and a light-transmitting plate is also provided above the through holes.

6. The hair dryer according to claim 3, characterized in that: The comb tooth accessory is provided with a magnetic part corresponding to the magnetic metal part so as to be magnetically connected to the hair dryer body. The comb tooth accessory includes a mounting plate, the mounting plate includes a bottom surface and a comb tooth surface opposite to the bottom surface, the bottom surface is provided with a first mounting port and a second mounting port, the magnetic part includes a first magnetic part and a second magnetic part, the first magnetic part is installed in the first mounting port, the second magnetic part is installed in the second mounting port, and a plurality of metal comb teeth are provided on the comb tooth surface.

7. The hair dryer according to claim 3, characterized in that: The comb tooth accessory includes a mounting plate, which includes a bottom surface and a comb tooth surface opposite to the bottom surface, the first sensing contact and the second sensing contact are spaced apart and arranged on one side of the bottom surface, the first sensing contact and the second sensing contact are connected through a first metal connector, the third sensing contact and the fourth sensing contact are spaced apart and arranged on the other side of the bottom surface, and the third sensing contact and the fourth sensing contact are connected through a second metal connector.

8. The hair dryer according to claim 6, characterized in that: The first positive metal piece, the first negative metal piece, the second positive metal piece and the second negative metal piece are all in strip shape.

9. The hair dryer according to claim 8, characterized in that The first positive metal part is used to be magnetically connected to the first magnetic part and to be electrically connected to the first sensing contact, the first negative metal part is used to be magnetically connected to the second magnetic part and to be electrically connected to the second sensing contact, the second positive metal part is used to be magnetically connected to the first magnetic part and to be electrically connected to the third sensing contact, and the second negative metal part is used to be magnetically connected to the second magnetic part and to be electrically connected to the fourth sensing contact.

10. The hair dryer according to claim 6, characterized in that: An annular second air outlet channel is provided in the middle of the mounting plate corresponding to the first air outlet channel.

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