Hair drying device

By setting up a temperature detector and overtemperature protection in the hair drying device, the fluid temperature is monitored and controlled in real time, the safety hazards and user experience problems caused by the inability to monitor the fluid temperature in the prior art are solved, and the safety and reliability of the equipment are improved sex.

CN109090797BActive Publication Date: 2025-01-07SHENZHEN SOOCAS TECH CO LTD
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Patent Information

Application Number
CN201811287222.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2018-10-31
Publication Date
2025-01-07
Estimated Expiration
2038-10-31

AI Technical Summary

Technical Problem

Existing hair drying devices cannot monitor the fluid temperature in real time, resulting in possible overheating, causing safety hazards and user experience impacts.

Method used

A hair drying device is designed, including a handle, body, heater and temperature detector. The temperature detector is arranged on the heater to detect the fluid temperature in real time and control the power supply of the heater through an over-temperature protection member. Prevent overheating.

Benefits of technology

By monitoring the fluid temperature in real time, temporary or permanent failure caused by continuous increase in fluid temperature is avoided, and user experience and equipment safety are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of hair-drying equipment, and in particular to a hair drying device, the hair drying device comprising a handle, a body, a heater and a temperature detector, the handle being connected to the body, the handle being provided with a first fluid inlet, the body comprising a first end and a second end being arranged opposite to each other, the first end being provided with a second fluid inlet, the second end being provided with a first fluid outlet and a second fluid outlet, the first fluid inlet being connected to the first fluid outlet to form a first fluid channel, the second fluid inlet being connected to the second fluid outlet to form a second fluid channel, the heater being located in the first fluid channel or the second fluid channel, and the temperature detector being arranged on the heater. By arranging the temperature detector, the temperature of the fluid in the body can be detected in real time, so that the user or the hair drying device itself can adjust the working state of the hair drying device, so as to avoid the continuous increase of the fluid temperature causing the hair drying device to fail temporarily or permanently, thereby affecting the user experience.
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Description

Technical Field

[0001] The invention relates to the technical field of hair-drying equipment, and in particular to a hair drying device. Background Art

[0002] Hair drying devices are mostly used for drying and shaping hair, and can also be used for other drying and art purposes. Existing hair drying devices generally rely on a motor to drive a fan to rotate. When the fan rotates, air can enter from a fluid inlet and then blow out from a fluid outlet to form a fluid, thereby achieving the purpose of drying and shaping.

[0003] In order to speed up the drying process, a heater is provided in the hair drying device so that the fluid is heated and blown out from the fluid outlet. However, the temperature of the fluid blown out from the fluid outlet may also be affected by other factors, such as electrical failure, which may cause the fluid blown out from the fluid outlet to overheat, posing a safety hazard. Existing hair drying devices generally provide overheat protection by adding an overheat protection member. When the temperature is too high, the overheat protection member causes the hair drying device to temporarily or permanently fail, which affects the user experience. Summary of the invention

[0004] The object of the present invention is to provide a hair drying device, aiming to solve the problem that the existing hair drying device cannot monitor the temperature of the fluid in real time.

[0005] To solve the above problems, the present invention provides a hair drying device, comprising a handle, a body, a heater and a temperature detector, wherein the handle is connected to the body, the handle is provided with a first fluid inlet, the body comprises a first end and a second end arranged opposite to each other, the first end is provided with a second fluid inlet, the second end is provided with a first fluid outlet and a second fluid outlet, the first fluid inlet is connected to the first fluid outlet to form a first fluid channel, the second fluid inlet is connected to the second fluid outlet to form a second fluid channel, the heater is located in the first fluid channel or the second fluid channel, and the temperature detector is arranged on the heater.

[0006] Optionally, the temperature detector is located between the heater and the first fluid outlet.

[0007] Optionally, the hair drying device further comprises a conductive member, which is disposed on the heater, one end of which is connected to the temperature detector, and the other end of which extends to an end of the heater away from the temperature detector.

[0008] Optionally, the temperature detector is crimped onto the conductive member.

[0009] Optionally, the body portion includes a shell and a tube body, the shell is sleeved on the tube body, the inner wall of the shell and the outer wall of the tube body are used to define a portion of the first fluid channel, and the inner wall of the tube body is used to define the second fluid channel;

[0010] The heater is sleeved on the tube body, and the inner wall of the heater is provided with a receiving groove for receiving the conductive member.

[0011] Optionally, the heater includes an annular inner layer and a heating element arranged on the outer ring surface of the inner layer, and the accommodating groove is arranged on the inner wall of the inner layer.

[0012] Optionally, the conductive member includes a mounting body, a first mounting arm and a second mounting arm, the mounting body is disposed in the accommodating groove, one end of the mounting body is connected to the first mounting arm, the other end of the mounting body is connected to the second mounting arm, and the temperature detector is connected to the first mounting arm;

[0013] The heater is provided with a first avoidance hole and a second avoidance hole, the first mounting arm is penetrated in the first avoidance hole, the second mounting arm is penetrated in the second mounting hole, and the first mounting arm and the second mounting arm extend radially along the heater.

[0014] Optionally, the conductive member further includes a first bending portion and a second bending portion, the first bending portion is arranged on the first mounting arm, the second bending portion is arranged on the second mounting arm, and the first bending portion and the second bending portion are used to limit the radial movement of the conductive member along the heater.

[0015] Optionally, the heater further comprises a support member, wherein the support member is arranged on the outer wall of the inner layer, and both ends of the conductive member are respectively fixed on the support member.

[0016] Optionally, the conductive member includes a connecting body, a first connecting ear and a second connecting ear, the connecting body is arranged in the accommodating groove, one end of the connecting body is connected to the first connecting ear, the other end of the connecting body is connected to the second connecting ear, and the temperature detector is fixed on the first connecting ear.

[0017] Optionally, the heater heats the fluid in the body when powered on, and the hair drying device further comprises at least one of the following:

[0018] a first over-temperature protection member electrically connected to the heater, the first over-temperature protection member being used to cut off power connected to the heater when the temperature of the fluid in the body reaches a first preset temperature value, and to conduct power connected to the heater when the temperature of the fluid in the body is lower than the first preset temperature value; and

[0019] The second over-temperature protection component is electrically connected to the heater, and the second over-temperature protection component is used to cut off the power connected to the heater when the temperature of the fluid in the body reaches a second preset temperature value.

[0020] Optionally, the hair drying device further comprises a control unit, wherein the control unit is electrically connected to the heater and the temperature detector, and the control unit is used to control the heating temperature of the heater according to the detection result of the temperature detector.

[0021] Implementing the embodiments of the present invention will have the following beneficial effects:

[0022] By providing a temperature detector, the temperature of the fluid in the body can be detected in real time, so that the user or the hair drying device itself can adjust the working state of the hair drying device to avoid temporary or permanent failure of the hair drying device due to continuous increase in fluid temperature, which affects the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] in:

[0025] Figure 1 An axonometric diagram of a hair drying device provided in one embodiment;

[0026] Figure 2 for Figure 1 A cross-sectional view of the hair drying device shown;

[0027] Figure 3 for Figure 2 The schematic diagram of the installation of the temperature detector in the hair drying device in the first embodiment is shown;

[0028] Figure 4 for Figure 2 The temperature detector in the hair drying device is shown in another installation angle diagram of the first embodiment;

[0029] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0030] Figure 6 for Figure 4 The enlarged view of point B in the middle;

[0031] Figure 7is an isometric schematic diagram of the conductive member in the first embodiment;

[0032] Figure 8 for Figure 2 A schematic diagram of the installation of a temperature detector in a hair drying device in a second embodiment is shown;

[0033] Fig. 9 for Figure 8 Enlarged view of point C in the middle;

[0034] Fig.10 Schematic diagram of an axonometric view of a conductive member in the second embodiment.

[0035] Description of Figure Numbers:

[0036] 100. handle; 111. first fluid inlet;

[0037] 200, body; 210, first end; 211, second fluid inlet; 220, second end; 221, first fluid outlet; 222, second fluid outlet; 230, housing; 240, tube; 201, first fluid channel; 202, second fluid channel;

[0038] 300, heater; 310, inner layer; 311, receiving groove; 312, first avoidance hole; 313, second avoidance hole; 320, outer layer; 330, heating element; 340, support member; 341, positioning port;

[0039] 400, fan assembly; 410, fan; 420, motor;

[0040] 500, control department;

[0041] 600. Temperature detector;

[0042] 700, conductive member; 711, mounting body; 712, first mounting arm; 713, second mounting arm; 714, first bending portion; 715, second bending portion; 721, connecting body; 722, first connecting ear; 723, second connecting ear; 731, fastener;

[0043] 810, first over-temperature protection component; 820, second over-temperature protection component; 900, wire; 910, wire ear. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] like Figure 1 and Figure 2 As shown, a hair drying device according to an embodiment of the present invention comprises a handle 100 and a body 200. The handle 100 is connected to the body 200, and a first fluid inlet 111 is provided on the handle 100. The body 200 comprises a first end 210 and a second end 220 arranged opposite to each other, a second fluid inlet 211 is provided on the first end 210, and a first fluid outlet 221 and a second fluid outlet 222 are provided on the second end 220. The first fluid inlet 111 is connected to the first fluid outlet 221 to form a first fluid channel 201, and the second fluid inlet 211 is connected to the second fluid outlet 222 to form a second fluid channel 202. For ease of understanding, arrows are used in the figure to schematically indicate the flow paths of the fluids in the first fluid channel 201 and the second fluid channel 202.

[0046] Specifically, a fan assembly 400 is further provided inside the handle 100. The fan assembly 400 includes a fan 410 and a motor 420. The motor 420 can drive the fan 410 to rotate. When the motor 420 drives the fan 410 to rotate, under the suction effect of the fan 410, the fluid flows into the handle 100 from the first fluid inlet 111, and then flows out from the first fluid outlet 221 through the first fluid channel 201. Due to the entrainment effect of the fluid at the first fluid outlet 221, the fluid around the first end 210 of the body 200 flows into the second fluid channel 202 from the second fluid inlet 211, and then flows out from the second fluid outlet 222, and then merges with the fluid flowing out of the first fluid outlet 221 and flows out from the second end 220 together. By providing the second fluid channel 202, the flow rate of the fluid of the hair drying device can be increased.

[0047] Furthermore, the body 200 includes a shell 230 and a tube 240 , the shell 230 is sleeved on the tube 240 , the inner wall of the shell 230 and the outer wall of the tube 240 are used to define a portion of the first fluid channel 201 , and the inner wall of the tube 240 is used to define the second fluid channel 202 .

[0048] In this embodiment, if Figure 2 and Figure 3As shown, the hair drying device further comprises a heater 300, which is located in the first fluid channel 201 and is used to heat the fluid in the first fluid channel 201 and the second fluid channel 202. Of course, in other embodiments, the heater 300 may also be located in the second fluid channel 202. In addition, in order to detect the temperature of the fluid in the body 200, the hair drying device further comprises a temperature detector 600 disposed on the heater 300. Specifically, the temperature detector 600 is a thermistor. Of course, it may also be other forms such as a thermocouple. During installation, the temperature detector 600 may be first installed on the heater 300, and then the heater 300 may be installed in the body 200, thereby avoiding inserting hands or tools into the body 200 for installation operations.

[0049] It is worth mentioning that in order to make the temperature detected by the temperature detector 600 closer to the temperature of the fluid flowing out of the second end 220, the temperature detector 600 is located between the heater 300 and the first fluid outlet 221. In this way, the fluid temperature detected by the temperature detector 600 is the temperature of the fluid after being heated by the heater 300, which can improve the accuracy of the detection.

[0050] In this embodiment, if Figure 2 and Figure 3 As shown, in order to install the temperature detector 600 on the heater 300, the hair drying device further includes a conductive member 700 disposed on the heater 300, and two pins of the temperature detector 600 are respectively fixed on the conductive member 700. One end of the conductive member 700 is connected to the temperature detector 600, and the other end of the conductive member 700 extends to an end of the heater 300 away from the temperature detector 600, so as to facilitate the connection of the temperature detector 600 with other components upstream of the heater 300.

[0051] Furthermore, if Figure 2 and Figure 3 As shown, the heater 300 is sleeved on the tube body 240. In this embodiment, the inner wall of the heater 300 is provided with a receiving groove 311 for accommodating the conductive member 700. The conductive member 700 is arranged in the receiving groove 311, which can avoid the conductive member 700 from interfering with the tube body 240 and make the arrangement of the conductive member 700 more regular.

[0052] Specifically, Figure 3 As shown, the heater 300 includes an inner layer 310 and a heating element 330 , wherein the heating element 330 is disposed on the outer wall of the inner layer 310 , and the heating element 330 is used to generate heat energy when powered on.

[0053] It is worth mentioning that in this embodiment, the inner layer 310 is made of plastic material. Plastic material has better plasticity than mica material, which is convenient for molding the inner layer 310 according to the shape of the heating element 330 and other parts connected to the inner layer 310. At the same time, the plastic material has a higher hardness, which can improve the bearing performance of the inner layer 310.

[0054] Furthermore, the heater 300 also includes an outer layer 320 sleeved on the heating element 330. The outer layer 320 can isolate the heat generated by the heating element 330 to protect the shell 230 of the body 200. In addition, the heating element 330 includes two independent heating units. In this way, the user can control each heating unit independently, or when one of the heating units in the heating element 330 is damaged, the normal use of the heater 300 can be ensured, thereby improving the practical performance of the heater 300. In this embodiment, each heating unit includes multiple turns of adjacently arranged metal wires. It can be understood that in other embodiments, the number of heating units can be set to one or more than three, and the specific setting method can be reasonably selected according to actual conditions.

[0055] The following further describes the manner in which the temperature detector 600 is disposed on the heater 300:

[0056] In the first embodiment, if Figures 3 to 7 As shown, the conductive member 700 includes a mounting body 711, a first mounting arm 712 and a second mounting arm 713. The mounting body 711 is disposed in the receiving groove 311. One end of the mounting body 711 is connected to the first mounting arm 712, and the other end of the mounting body 711 is connected to the second mounting arm 713. The temperature detector 600 is connected to the first mounting arm 712. In addition, in order to connect the temperature detector 600 to other components upstream of the heater 300, the hair drying device further includes a wire 900 disposed on the second mounting arm 713. The wire ear 910 and the fastener 731 at one end of the wire 900 are crimped onto the second mounting arm 713.

[0057] In addition, if Figures 4 to 6 As shown, in order to limit the axial movement of the conductive member 700 along the heater 300, a first avoidance hole 312 and a second avoidance hole 313 may be further provided on the heater 300. When the conductive member 700 is installed on the heater 300, the first mounting arm 712 is inserted into the first avoidance hole 312, and the second mounting arm 713 is inserted into the second avoidance hole 313, and the first mounting arm 712 and the second mounting arm 713 extend in the radial direction of the heater 300.

[0058] Further, in order to limit the radial movement of the conductive member 700 along the heater 300, it is more convenient to connect the temperature detector 600 to the conductive member 700. The conductive member 700 also includes a first bending portion 714 and a second bending portion 715, the first bending portion 714 is arranged on the first mounting arm 712, and the second bending portion 715 is arranged on the second mounting arm 713. The two pins of the temperature detector 600 are respectively plugged into the first bending portions 714 of the two conductive members 700. It should be noted that in order to ensure that the temperature detector 600 is more reliably connected to the conductive member 700, the pins of the temperature detector 600 can also be wrapped around the first bending portion 714. Of course, the temperature detector 600 can also be fixed to the first bending portion 714 by other methods such as crimping.

[0059] In this embodiment, the first mounting arm 712 can be interference-fitted with the first avoidance hole 312, and the second mounting arm 713 can be interference-fitted with the second avoidance hole 313, so that the connection between the conductive member 700 and the heater 300 is more reliable. Of course, the mounting body 711 can also be interference-fitted with the receiving groove 311 to fix the conductive member 700 on the heater 300. Alternatively, the conductive member 700 can also be fixed on the heater 300 by other methods such as bonding.

[0060] In the second embodiment, if Figures 8 to 10 As shown, the heater 300 includes a support member 340, which is arranged on the outer wall of the inner layer 310, and the two ends of the conductive member 700 are respectively fixed on the support member 340. Further, the support member 340 is also provided with a positioning hole 341 for positioning the heating element 330. In this way, the support member 340 can be used to fix the conductive member 700 on the one hand, and can be used to fix the heating element 330 on the other hand, so as to reduce the number of parts and reduce the weight of the hair drying device, thereby reducing the production cost. In this embodiment, the positioning hole 341 is a sawtooth shape, the heating element 330 is a sawtooth or wavy metal wire, and the heating element 330 is positioned in the positioning hole 341. In this way, the interference of the heater 300 with the fluid in the first fluid channel 201 can be reduced.

[0061] Furthermore, if Figures 8 to 10 As shown, and also refer to Figure 3 In order to facilitate the connection between the conductive member 700 and the support member 340, the conductive member 700 includes a connecting body 721, a first connecting ear 722 and a second connecting ear 723. The connecting body 721 is disposed in the receiving groove 311, one end of the connecting body 721 is connected to the first connecting ear 722, and the other end of the connecting body 721 is connected to the second connecting ear 723. The temperature detector 600 is connected to the first connecting ear 722. Specifically, in this embodiment, the temperature detector 600 is crimped to the first connecting ear 722 and the support member 340 by a fastener 731.

[0062] In this embodiment, in order to connect the temperature detector 600 with other components upstream of the heater 300 , the hair drying device further includes a wire 900 disposed on the second connecting ear 723 , and a wire ear 910 at one end of the wire 900 is crimped onto the second connecting ear 723 .

[0063] It should be noted that, in other embodiments, the structure of the conductive member 700 may also be changed according to the structures of the temperature detector 600 and the heater 300 .

[0064] In addition, if Figure 2 As shown, the hair drying device may further include a control unit 500, which is electrically connected to the heater 300 and the temperature detector 600. The control unit 500 is used to control the heating temperature of the heater 300 according to the detection result of the temperature detector 600. When the temperature detector 600 detects that the temperature of the fluid in the first fluid channel 201 reaches a predetermined value, the control unit 500 may control the heater 300 to adjust the heating temperature so that the temperature of the fluid in the first fluid channel 201 and the second fluid channel 202 is reduced. In addition, the control unit 500 may also control the rotation speed of the fan assembly 400 to adjust the flow rate of the fluid in the hair drying device.

[0065] Furthermore, in this embodiment, the control unit 500 is disposed in the second fluid channel 202. When the hair drying device is working, the fluid in the second fluid channel 202 can dissipate heat for the control unit 500, avoiding the need to dissipate heat for the control unit 500 by other heat dissipation devices, thereby reducing the number of components of the hair drying device, reducing the weight of the hair drying device, and thus reducing production costs. Of course, in other embodiments, the control unit 500 can also be disposed in the first fluid channel 201.

[0066] It is worth mentioning that Figure 3 As shown, in order to further ensure the safety of the hair drying device, the hair drying device is provided with a first over-temperature protection member 810. The first over-temperature protection member 810 is electrically connected to the heater 300, and the first over-temperature protection member 810 is used to cut off the power connected to the heater 300 when the temperature of the fluid in the first fluid channel 201 reaches a first preset temperature value, and to conduct the power connected to the heater 300 when the temperature of the fluid in the first fluid channel 201 is lower than the first preset temperature value.

[0067] In this embodiment, the first over-temperature protection component 810 is arranged on the outer wall of the inner layer 310 and is located between the inner layer 310 and the heating element 330. Since the temperature of the fluid inside the heating element 330 is relatively more uniform, the first over-temperature protection component 810 is arranged inside the heating element 330, so that the first over-temperature protection component 810 can use the temperature of the fluid inside the heating element 330 as the temperature standard for controlling the cutting off or conducting of the power connected to the heating element 330, thereby accurately controlling the heating temperature of the heater 300.

[0068] Specifically, the first over-temperature protection member 810 is made of a thermally deformable material. When the temperature of the fluid in the first fluid channel 201 reaches a first preset temperature value, the first over-temperature protection member 810 is deformed and disconnected to cut off the power connected to the heater 300. When the temperature of the fluid in the first fluid channel 201 is lower than the first preset temperature value, the first over-temperature protection member 810 is deformed again and conducts the power connected to the heater 300. In this way, the hair drying device can temporarily stop working when the temperature of the fluid in the first fluid channel 201 exceeds the first preset temperature value, and automatically start heating when the temperature of the fluid in the first fluid channel 201 drops below the first preset temperature value.

[0069] Furthermore, the hair drying device also includes a second over-temperature protection component 820, which is electrically connected to the heater 300. The second over-temperature protection component 820 is used to cut off the power connected to the heater 300 when the temperature of the fluid in the first fluid channel 201 reaches a second preset temperature value. Preferably, the second preset temperature value is higher than the first preset temperature value.

[0070] Specifically, the second over-temperature protection member 820 is disposed on the outer wall of the inner layer 310 and is located between the inner layer 310 and the heating element 330. Similar to the configuration of the first over-temperature protection member 810, the second over-temperature protection member 820 is disposed inside the heating element 330, so that the second over-temperature protection member 820 can use the temperature of the fluid inside the heating element 330 as the temperature standard for controlling the cutting off or conducting the power connected to the heating element 330, thereby accurately controlling the heater 300 to heat the fluid in the first fluid channel 201. In this embodiment, the second over-temperature protection member 820 is a thermal fuse. When the temperature of the fluid in the first fluid channel 201 reaches the second preset temperature value, the second over-temperature protection member 820 is melted to cut off the power connected to the heater 300, so that the hair drying device is permanently disabled.

[0071] By providing the first over-temperature protection member 810 and the second over-temperature protection member 820, when one of the over-temperature protection members fails, the other over-temperature protection member can still work normally, so that the over-heat protection function of the hair drying device is more stable. It can be understood that the hair drying device can also include only one of the first over-temperature protection member 810 and the second over-temperature protection member 820. Moreover, the first over-temperature protection member 810 and the second over-temperature protection member 820 can also be arranged in the second fluid channel 202.

[0072] The above-mentioned hair drying device, by providing a temperature detector 600, can detect the temperature of the fluid in the body 200 in real time, so that the user or the hair drying device itself can adjust the working state of the hair drying device to avoid the continuous increase in the fluid temperature causing temporary or permanent failure of the hair drying device, affecting the user experience.

[0073] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A hair drying device, characterized in that: The invention comprises a handle, a body, a heater and a temperature detector, wherein the handle is connected to the body, the handle is provided with a first fluid inlet, the body comprises a first end and a second end which are arranged opposite to each other, the first end is provided with a second fluid inlet, the second end is provided with a first fluid outlet and a second fluid outlet, the first fluid inlet is connected with the first fluid outlet to form a first fluid channel, the second fluid inlet is connected with the second fluid outlet to form a second fluid channel, the heater is located in the first fluid channel or the second fluid channel, and the temperature detector is arranged on the heater; The hair drying device further comprises a conductive member, which is disposed on the heater, one end of which is connected to the temperature detector, and the other end of which extends to an end of the heater away from the temperature detector; The conductive member comprises a first bending portion, and the two pins of the temperature detector are respectively plugged into the first bending portions of the two conductive members; The heater comprises an annular inner layer, the inner wall of the heater is provided with a receiving groove for accommodating the conductive member, the receiving groove is arranged on the inner wall of the inner layer, and the inner layer is made of plastic material.

2. The hair drying device according to claim 1, characterized in that The temperature detector is located between the heater and the first fluid outlet.

3. The hair drying device according to claim 1, characterized in that The body portion includes a shell and a tube body, the shell is sleeved on the tube body, the inner wall of the shell and the outer wall of the tube body are used to define a part of the first fluid channel, and the inner wall of the tube body is used to define the second fluid channel; The heater is sleeved on the tube body.

4. The hair drying device according to claim 3, characterized in that The heater includes a heating element disposed on the outer ring surface of the inner layer.

5. The hair drying device according to claim 4, characterized in that The conductive member comprises a mounting body, a first mounting arm and a second mounting arm, the mounting body is disposed in the receiving groove, one end of the mounting body is connected to the first mounting arm, the other end of the mounting body is connected to the second mounting arm, and the temperature detector is connected to the first mounting arm; The heater is provided with a first avoidance hole and a second avoidance hole, the first mounting arm is penetrated in the first avoidance hole, the second mounting arm is penetrated in the second mounting hole, and the first mounting arm and the second mounting arm extend radially along the heater.

6. The hair drying device according to claim 5, characterized in that The conductive member further includes a second bending portion, the first bending portion is disposed on the first mounting arm, the second bending portion is disposed on the second mounting arm, and the first bending portion and the second bending portion are used to limit the radial movement of the conductive member along the heater.

7. The hair drying device according to claim 4, characterized in that The heater comprises a support member, the support member is arranged on the outer wall of the inner layer, and two ends of the conductive member are respectively fixed on the support member.

8. The hair drying device according to claim 7, characterized in that The conductive member includes a connecting body, a first connecting ear and a second connecting ear. The connecting body is arranged in the accommodating groove. One end of the connecting body is connected to the first connecting ear, and the other end of the connecting body is connected to the second connecting ear. The temperature detector is arranged on the first connecting ear.

9. The hair drying device according to claim 1, characterized in that The heater heats the fluid in the body when powered on, and the hair drying device further comprises at least one of the following: a first over-temperature protection element, electrically connected to the heater, the first over-temperature protection element being used to cut off the power connected to the heater when the temperature of the fluid in the body reaches a first preset temperature value, and to conduct the power connected to the heater when the temperature of the fluid in the body is lower than the first preset temperature value; and The second over-temperature protection component is electrically connected to the heater, and the second over-temperature protection component is used to cut off the power connected to the heater when the temperature of the fluid in the body reaches a second preset temperature value.

10. The hair drying device according to claim 1, characterized in that The hair drying device further includes a control unit, which is electrically connected to the heater and the temperature detector, and is configured to control a heating temperature of the heater according to a detection result of the temperature detector.

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