Hair care device

Abstract

The present application relates to a kind of hair care device, hair care device includes heating assembly, heating assembly includes support body, support body includes multiple supports, multiple supports include at least one group of heat insulation space support, each group of heat insulation space support is formed with at least one heat insulation space, at least one electrically conductive sheet is arranged in at least one heat insulation space respectively, heat insulation space separates electrically conductive sheet and heating body, at least one electrically conductive sheet is used to connect the port in the circuit close to air outlet to the port in the circuit away from air outlet to form circuit. Utilize the terminal of electrically conductive sheet connection, the terminal of electronic component located in close to air outlet and away from air outlet, which needs to be connected across heating body, and electrically conductive sheet is arranged on the support body for supporting heating wire, without increasing the size of hair dryer, realize wiring, electrically conductive body also has good protective property, and does not need to carry out the welding of wire, manufacture, assembly is relatively simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household small appliances, in particular to a hair care device. BACKGROUND

[0002] In daily life, after washing hair, a hair dryer is usually used to accelerate the drying of hair. In the existing common hair dryer, when arranging the heating wire, especially in the case of double-layer heating wire, the heating wire is generally wound from the side close to the power supply module to the side close to the air outlet, and then wound from the side close to the air outlet to the side close to the power supply module, and then connected to the temperature control structure. Because the fuse in the temperature control structure is arranged at the position outside the heating wire and close to the air outlet, the fuse needs a conductive part to connect the heating wire and / or the power supply module. The heating wire is not only conductive but also releases heat during the heating process, which makes it difficult to arrange the conductive part. The conductive part needs to be arranged at a distance far away from the outside of the heating wire, which further leads to a large structure of the hair dryer. SUMMARY

[0003] Therefore, the present application provides a hair care device which can not only meet the wiring requirements but also ensure simple assembly and small size.

[0004] In order to achieve the above-mentioned purpose, the present application provides a hair care device, which comprises an air inlet and an air outlet. The hair care device further comprises a heating assembly. When the hair care device is in operation, the airflow entering from the air inlet flows to the air outlet through the heating assembly. The heating assembly comprises:

[0005] a heating body comprising a first port and a second port, wherein the first port and the second port are arranged close to or away from the air outlet;

[0006] a support body comprising a plurality of support members, wherein the support members extend from a first end to a second end, the first end is close to the air outlet, the second end is away from the air outlet, the heating body is arranged around the plurality of support members, the support members are made of heat insulation material and are used for supporting the heating body, and at least one group of heat insulation space support members is included in the plurality of support members, and each group of heat insulation space support members forms at least one heat insulation space;

[0007] a first temperature control device arranged at one end of the support body close to the air outlet, wherein a power supply module, the heating body and the first temperature control device form a loop, the first temperature control device is used for detecting a first ambient temperature at the installation position thereof and adjusting the on-off state of the loop according to the first ambient temperature, and the power supply module is arranged away from the air outlet;

[0008] At least one electrically conductive sheet is arranged in at least one of the thermal insulation spaces, the thermal insulation spaces separating the electrically conductive sheet from the heat generating body, and the at least one electrically conductive sheet is used to connect the port of the loop close to the air outlet to the port of the loop far from the air outlet to form the loop.

[0009] In one embodiment, when the first port and the second port of the heat generating body, the power supply module are arranged far from the air outlet, and the two terminals of the first temperature control device are arranged close to the air outlet, the heat generating body is connected to the power supply module, the heat generating assembly includes two electrically conductive sheets, and the two terminals of the first temperature control device are connected to the power supply module and the heat generating body through the two electrically conductive sheets.

[0010] In one embodiment, when the first port and the second port of the heat generating body, the power supply module are arranged far from the air outlet, and the two terminals of the first temperature control device are arranged close to the air outlet, the heat generating body is connected to the power supply module, the heat generating assembly includes two electrically conductive sheets, and the two terminals of the first temperature control device are connected to the power supply module and the heat generating body through the two electrically conductive sheets.

[0011] In one embodiment, each set of the thermal insulation space supports includes a first thermal insulation space support and a second thermal insulation space support adjacent to the first thermal insulation space support, the first thermal insulation space support and the second thermal insulation space support form the thermal insulation space, and the electrically conductive sheet is clamped between the first thermal insulation space support and the second thermal insulation space support along the thickness direction of the electrically conductive sheet.

[0012] In one embodiment, the heat generating assembly further includes a second temperature control device arranged on the support body, the power supply module, the heat generating body, the first temperature control device, and the second temperature control device form the loop, the second temperature control device is used to detect the second ambient temperature at the installation position of the second temperature control device, and the second temperature control device is used to regulate the on-off state of the loop according to the second ambient temperature.

[0013] In one embodiment, when the first port and the second port of the heat generating body, the power supply module are arranged far from the air outlet, and the two terminals of the first temperature control device, the two terminals of the second temperature control device are arranged close to the air outlet, the heat generating body is connected to the power supply module, the first temperature control device is connected to the second temperature control device, the heat generating assembly includes two electrically conductive sheets, and the two terminals of the first temperature control device and the second temperature control device that are not interconnected are connected to the two terminals of the power supply module and the heat generating body that are not interconnected through the two electrically conductive sheets; or,

[0014] When the first port and the second port are arranged close to the air outlet, the heating element, the first temperature control device and the second temperature control device are connected, and the ports on the heating element and the first temperature control device that are not electrically connected to each other and not electrically connected to the second temperature control device are electrically connected to one end of the conductive sheet close to the air outlet; when the first port and the second port are arranged away from the air outlet, the port on the first temperature control device that is not electrically connected to the second temperature control device is electrically connected to one end of the conductive sheet close to the air outlet.

[0015] In one embodiment, the two ports of the second temperature control device are arranged close to the first end and the second end respectively, and the two ports of the first temperature control device are arranged close to the air outlet, and the heating assembly includes one conductive sheet.

[0016] When the first port and the second port are arranged close to the air outlet, the heating element, the first temperature control device and the second temperature control device are connected, and the ports on the heating element and the first temperature control device that are not electrically connected to each other and not electrically connected to the second temperature control device are electrically connected to one end of the conductive sheet close to the air outlet; when the first port and the second port are arranged away from the air outlet, the port on the first temperature control device that is not electrically connected to the second temperature control device is electrically connected to one end of the conductive sheet close to the air outlet.

[0017] In one embodiment, the first temperature control device is configured to collect a first temperature on the side of the first temperature control device, and when the first temperature is greater than a first preset temperature threshold, the first temperature control device is in an open state, so that the circuit is in an open state; the second temperature control device is configured to collect a second temperature on the side of the second temperature control device, and when the second temperature is greater than a second preset temperature threshold, the second temperature control device is in an open state, so that the circuit is in an open state, and when the second temperature is less than or equal to the second preset temperature threshold, the second temperature control device is in a closed state, so that the circuit is in a closed state.

[0018] In one embodiment, the support body further includes a support base, and the support base has a mounting cavity on the outer side, the mounting cavity extending along the axial direction of the support base, and the second temperature control device is mounted in the mounting cavity.

[0019] In one embodiment, the first preset temperature threshold ranges from 199.6℃ to 200.4℃, and the second preset temperature threshold ranges from 150℃ to 160℃.

[0020] In one embodiment, the support body further comprises a support base, the heating body comprises heating layers arranged in a positive even number of layers, and support frames for supporting the heating layers, and the positive even number of heating layers are stacked along the radial direction of the support base; each of the heating layers is provided with a corresponding support frame, and the plurality of support members form a corresponding number of support frames as the number of layers of the heating layers.

[0021] In one embodiment, the plurality of support members comprises a plurality of first support members and a plurality of second support members, the number of heating layers is two, the heating body comprises a first layer of heating members and a second layer of heating members, the first layer of heating members and the second layer of heating members are sequentially stacked along the radial direction of the support base, the plurality of first support members are used to support the first layer of heating members, and the plurality of second support members are used to support the second layer of heating members.

[0022] In one embodiment, the first layer of heating members is an outer layer of heating members, and the second layer of heating members is an inner layer of heating members.

[0023] In one embodiment, the first support members and the second support members are mounted on the support base, and the support base is located inside the heating body.

[0024] In one embodiment, the plurality of first support members comprises at least one set of heat insulation space support members, each set of heat insulation space support members comprises a first heat insulation space support member and a second heat insulation space support member adjacent to the first heat insulation space support member, the first heat insulation space support member and the second heat insulation space support member form the heat insulation space, and the conductive sheet is clamped between the first heat insulation space support member and the second heat insulation space support member along the thickness direction of the conductive sheet.

[0025] In one embodiment, a first heat insulation member is arranged between the first layer of heating members and the second layer of heating members.

[0026] In one embodiment, the heating assembly further comprises a temperature detection member.

[0027] The temperature detection member is used to collect a third temperature on the periphery of the temperature detection member, and feed back the third temperature to a whole machine controller, and the whole machine controller controls the third temperature to be constant.

[0028] In one embodiment, the first thickness of each set of heat insulation space support members is the same as the second thickness of other support members.

[0029] The hair care device provided by this invention utilizes a conductive sheet to connect the terminals of electronic components located near and away from the air outlet, which need to be connected across the heating element. The conductive sheet is positioned on a support body that supports the heating wire, eliminating the need to place the conductor outside the heating wire. This allows for wiring without increasing the overall size of the hair dryer, provides good protection for the conductor, and eliminates the need for wire soldering, simplifying manufacturing and assembly. Compared to a solution where the conductive sheet is placed outside the heating element, with a heat insulation component surrounding the heating element and a gap between them, the conductive sheet needs to pass over the heat insulation component. This requires specific installation conditions for the heat insulation component and the shape of the conductive sheet to connect the metal strip to the various electronic components in the circuit. The solution provided in this application places the conductive sheet within the heat-insulating space formed by the support body supporting the heating element, saving space and eliminating the need for a heat insulation component between the outside of the heating element and the conductive sheet, as well as the need for the conductive sheet to pass over the outside of the heating element. This reduces the number of components and simplifies manufacturing and assembly. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a hair care device provided in an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A magnified view of a section at point AA;

[0032] Figure 3 for Figure 1 The exploded view of a partial hair care device provided in the image;

[0033] Figure 4 for Figure 1 A schematic diagram of the heating element of the hair care device provided in the image;

[0034] Figure 5 for Figure 4 A partial schematic diagram of the heating element of the hair care device provided in the image;

[0035] Figure 6 , Figure 7 for Figure 4 Other perspective views of a partial schematic diagram of the heating component shown;

[0036] Figure 8a for Figure 1 A schematic diagram of the first current circuit for the provided hair care device;

[0037] Figure 8b for Figure 1 A schematic diagram of the second current circuit for the provided hair care device;

[0038] Figure 8c forFigure 1 A third current loop schematic diagram of the hair care appliance provided;

[0039] Figure 8d A fourth current loop schematic diagram of the hair care appliance provided; Figure 1 A fourth current loop schematic diagram of the hair care appliance provided;

[0040] Figure 8e A fifth current loop schematic diagram of the hair care appliance provided; Figure 1 A fifth current loop schematic diagram of the hair care appliance provided;

[0041] Figure 8f A fifth current loop schematic diagram of the hair care appliance provided; Figure 1 A fifth current loop schematic diagram of the hair care appliance provided;

[0042] Figure 9 A schematic diagram of the heat insulation support of the heating assembly of the hair care appliance provided in the foregoing; Figure 5 A schematic diagram of the heat insulation support of the heating assembly of the hair care appliance provided in the foregoing;

[0043] Figure 10 A schematic diagram of the heat insulation support of the heating assembly of the hair care appliance provided in the foregoing; Figure 9 A partial exploded view of the heat insulation support shown in the foregoing;

[0044] Figure 11 A schematic diagram of the heat insulation support of the heating assembly of the hair care appliance provided in the foregoing; Figure 2 A schematic diagram of the heat insulation support of the heating assembly of the hair care appliance provided in the foregoing;

[0045] Figure 12 A schematic diagram of the heat insulation support of the heating assembly of the hair care appliance provided in the foregoing; Figure 1 A schematic diagram of the heat insulation support of the heating assembly of the hair care appliance provided in the foregoing; DETAILED DESCRIPTION

[0046] In order to make the above objectives, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the scope of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0047] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0048] In addition, the terms "first", "second", etc. are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or an ordered sequence. Thus, features defined with "first", "second" etc. can include at least one of the features, explicitly or implicitly.

[0049] In the present application, unless specifically defined otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like are to be construed broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0051] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a mediating element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a mediating element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

[0052] In the production of the double-layer heating frame, two ends of the heating wire form two electrode ports of the heating wire, a first port of the two electrode ports is wound from a first starting position, the first starting position is away from the air outlet, and the winding is performed to a target position, the target position is close to the air outlet and is away from the first starting position by a distance. At this time, the first layer of the heating wire is formed. Continue to wind from the first target position to a second starting position, the second starting position is close to the air outlet, and the winding is performed from the second starting position to a terminal position away from the air outlet, to form the second layer of the heating wire. At this time, the winding of the heating wire in the double-layer heating frame is completed. At this time, the second port of the two electrode ports of the heating wire is located at the terminal position. It can be seen that the first starting position and the terminal position are located on the side away from the air outlet, and the first port located at the first starting position and the second port located at the terminal position are located on the side away from the air outlet. The temperature control fuse needs to be arranged at a position close to the air outlet. In this way, the temperature control fuse cannot be directly connected to the heating wire due to a certain distance between the temperature control fuse and any one of the two electrode ports of the heating wire, and any one of the two electrode ports cannot be directly connected to the power supply module due to a certain distance between the two electrode ports and the power supply module. The conductive member (such as a wire or a metal strip) needs to be electrically connected to the heating wire and / or the power supply module. The heating wire not only conducts electricity but also generates heat, which can damage the conductive member when the heating wire is working. The electric elements are arranged outside the heating wire. We usually think of arranging the conductive member outside or on the side of the heating wire. At this time, the problem of damage to the conductive member is solved by increasing the gap (making the conductive member away from the outer side of the heating wire at a far distance), and the conductive member is easy to damage and needs to be supported to avoid contact with the heating wire, which increases the size of the whole machine and causes space waste. In order to reduce the size, a mica sheet is arranged between the outer side of the heating wire and the conductive body, the heat insulation function of the mica sheet is used to reduce the size of the hair dryer, but the heat insulation capacity of the mica sheet is limited, only the metal strip can be used, and a certain gap still needs to be left between the metal strip and the heating wire. The metal strip needs to be made into a special shape to meet the connection of the metal strip with each electronic element that needs to be connected in the circuit, and the manufacturing and assembly are more complex.

[0053] To solve the above problems, the present application provides a hair care device, such as Figure 1 、 Figure 2 、 Figure 3As shown in the embodiment of the present application, the hair care device comprises a main body 1000 and a handle body 2000 connected with the main body 1000, and the handle body 2000 and the main body 1000 form an air supply channel 1001. The handle body 2000 is provided with an air inlet 1002, and the main body 1000 is provided with an air outlet 1003. The handle body is internally provided with a motor. When the hair care device is in operation, the motor rotates to make the airflow flow into the air inlet 1002, and the airflow entering the air inlet 1002 of the air supply channel 1001 passes through the heating assembly 2 of the air supply channel to the air outlet 1003 of the air supply channel, and finally flows out of the air outlet 1003, thereby realizing the drying or styling of the hair.

[0054] The hair care device further comprises a power supply module 70 for providing electric energy. Specifically, the power supply module 70 can be a battery pack, and of course, the power supply module 70 can also be a plug which is connected with a power source (for example, a mains electricity) to form a loop described in the present application. In the embodiment, the power supply module 70 is arranged on the handle body 2000, and the power supply module 70 is arranged away from the air outlet 1003 of the air supply channel 1001. The main body 1000 comprises a heating body 20, a first temperature control 41 and an outer cylinder 32. The outer cylinder 32 comprises a heating cavity 302, and the heating assembly and the first temperature control 41 are arranged in the heating cavity 302.

[0055] The heating assembly 2 comprises a support body 33, a heating body 20, a first temperature control 41 and at least one conductive sheet 50. The support body 33 comprises a plurality of support pieces, the support pieces extend from a first end portion to a second end portion, the first end portion is close to the air outlet 1003 and the second end portion is away from the air outlet 1003, the heating body 20 is arranged around the plurality of support pieces, the support pieces are made of heat insulation material and are used for supporting the heating body 20, and the plurality of support pieces comprise at least one set of heat insulation space support pieces, each set of heat insulation space support pieces 3300 forms at least one heat insulation space extending from the first end portion to the second end portion. The heating body 20 is arranged on the support body 33, and the heating body 20 comprises a first port and a second port, the first port and the second port are arranged close to the air outlet 1003 or away from the air outlet 1003. The first temperature control 41 is arranged at one end of the support body 33 close to the air outlet 1003, the power supply module 70, the heating body 20 and the first temperature control 41 form a loop, and the first temperature control 41 is used for detecting the first ambient temperature at the installation position thereof and adjusting the on-off state of the loop according to the first ambient temperature. The at least one conductive sheet 50 is arranged in the at least one heat insulation space respectively, and the heat insulation space separates the conductive sheet 50 from the heating body 20. The at least one conductive sheet 50 is used for connecting the port close to the air outlet 1003 in the loop to the port away from the air outlet 1003 in the loop to form the loop.

[0056] In the embodiment, the conductive sheet 50 is used to connect the terminals of the electronic components located near the air outlet 1003 and near the air inlet 1002, which need to be connected across the heating body, and the conductive sheet 50 is arranged on the support body 33 for supporting the heating wire, without the need to arrange the conductive body outside the heating wire, thereby realizing the wiring without increasing the size of the whole hair dryer, having good protection for the conductive body, and without the need to weld the wires, and the manufacturing and assembly are relatively simple. Compared with the scheme of arranging the conductive sheet 50 outside the heating body 20, and arranging the heat insulation member around the heating body 20 between the heating body 20 and the conductive sheet 50, and the conductive sheet 50 still has a certain gap with the heat insulation member, the conductive sheet 50 needs to cross the heat insulation member, and the installation of the heat insulation member and the shape of the conductive sheet 50 are required to enable the metal strip to be connected with each electronic component that needs to be connected in the circuit. The above scheme provided by the application arranges the conductive sheet 50 in the heat insulation space formed by the support member for supporting the heating body 20, saves space, and does not need to arrange the heat insulation member between the heating body 20 and the conductive sheet 50, and does not need to make the conductive sheet 50 cross the heating body 20 outside, thereby reducing the components and facilitating the manufacturing and assembly.

[0057] In the first case, when the first port and the second port are arranged near the air outlet 1003, the one end of the at least one conductive sheet 50 near the air outlet 1003 is electrically connected with at least one port in the circuit near the air outlet 1003 and used for connecting with the power supply module 70. In the second case, when the first port and the second port are arranged away from the air outlet 1003, the one end of the at least one conductive sheet 50 near the air outlet 1003 is electrically connected with at least one port in the circuit near the air outlet 1003 and not electrically connected with other elements in the circuit. In a specific embodiment, when the temperature control group in the circuit only includes the first temperature control 41, in the first case, when the first port and the second port are arranged near the air outlet 1003, the at least one port in the circuit near the air outlet 1003 and used for connecting with the power supply module 70 is at least one port of the first temperature control 41 and the heating body 20 near the air outlet 1003 and used for connecting with the power supply module 70. In the second case, when the first port and the second port are arranged away from the air outlet 1003, the at least one port in the circuit near the air outlet 1003 and not electrically connected with other elements in the circuit is the two ports of the first temperature control 41.

[0058] As Figure 2As shown, in actual use, the heating cavity 302 serves as part of the air supply channel 1001. The airflow in the environment enters the air supply channel 1001 through the air inlet 1002, flows along the air supply channel 1001, and flows out of the air outlet 1003 for drying. While the airflow flows in the air supply channel 1001, it becomes hot airflow under the heating effect of the heating body 20 in the heating cavity 302 to improve the drying effect. In this process, because the first temperature control component 41, the heating body 20, and the power supply module 70 always form a current loop, the temperature control group always monitors the temperature in the heating cavity 302 to regulate the electrical connection state of the heating body 20 and the power supply module 70, so as to meet different heating needs while ensuring good use safety of the heating body 20. The conductive sheet 50 is arranged in the heat insulation space on the support body 33, and the electrical connection can be achieved by using the conductive sheet 50 arranged in the heat insulation space. On the basis of meeting the electrical connection, a dedicated space is provided for loop layout, so that the conductive sheet 50 does not need to occupy the space of the heating cavity 302. Therefore, the heating cavity 302 arranged in the outer cylinder 32 does not need to reserve space for wiring, which reduces the radial size of the outer cylinder 32, and further reduces the radial size of the main body 1000. Moreover, because the above-mentioned conductive sheet 50 is wired from the heat insulation space arranged on the support body 33, the conductive sheet 50 will not cause installation interference with the structure in the heating cavity 302, which simplifies the assembly and also has good protection for the conductive sheet 50.

[0059] As shown in FIG. 1, the main body 1000 includes a heating body 20 and a power supply module 70. The heating body 20 is arranged in the outer cylinder 32, and the power supply module 70 is arranged in the inner cylinder 31. The heating body 20 is electrically connected to the power supply module 70. Figure 4 to Figure 7 As shown, the support body 33 also includes a support base 31, and a plurality of support members are mounted on the support base 31. The support base 31 is located inside the heating body 20.

[0060] In some embodiments, the heating body 20 includes a plurality of heating layers arranged in an even number of layers, and a support frame for supporting the heating layers. The even number of heating layers are stacked along the radial direction of the support base 31, and each heating layer is correspondingly provided with a support frame. The plurality of support bodies 33 form a corresponding number of support frames corresponding to the number of layers of the heating layers. The heating efficiency of the heating body 20 is improved by arranging multiple layers of heating layers, so as to facilitate faster and more efficient drying operation.

[0061] Each group of heat insulation space support members 3300 includes a first heat insulation space support member 3301 and a second heat insulation space support member 3302 adjacent to the first heat insulation space support member 3301. The first heat insulation space support member 3301 and the second heat insulation space support member 3302 form a heat insulation space, and the conductive sheet 50 is clamped in the heat insulation space formed between the first heat insulation space support member 3301 and the second heat insulation space support member 3302 along the thickness direction thereof.

[0062] Specifically, the first thickness of each set of the thermal insulation space support 3300 is substantially the same as the second thickness of the other support. In this way, not only is the conductive sheet 50 prevented from being connected to the heating wire to cause a short circuit, but the conductive sheet 50 is also thermally insulated, increasing the life of the conductive sheet. In addition, the thermal insulation space support 3300 can be easily installed on the support base 31, facilitating manufacturing and assembly.

[0063] As shown in Figure 5 to Figure 7 , Figure 9 , Figure 10 , Figure 12 In one specific embodiment, the number of heating layers is two, the plurality of supports includes a plurality of first supports 331 and a plurality of second supports 332, the heating body 20 includes a first layer of heating elements 21 and a second layer of heating elements 22, the first layer of heating elements 21 is an outer layer of heating elements, the second layer of heating elements 22 is an inner layer of heating elements, the plurality of first supports 331 are used to support the first layer of heating elements 21, and the plurality of second supports 332 are used to support the second layer of heating elements 22; the plurality of first supports 331 includes a first thermal insulation space support 3301 and a second thermal insulation space support 3302. The plurality of first supports 331 includes at least one set of thermal insulation space supports 3300. Of course, in other embodiments of the present application, the first layer of heating elements 21 can be an inner layer of heating elements, and the second layer of heating elements 22 can be an outer layer of heating elements; in other embodiments of the present application, the plurality of second supports 332 includes a first thermal insulation space support 3301 and a second thermal insulation space support 3302.

[0064] As shown in Figure 12 , a first thermal insulation element 23 is arranged between the first layer of heating elements 21 and the second layer of heating elements 22. The arrangement of the first thermal insulation element 23 prevents the first layer of heating elements 21 and the second layer of heating elements 22 from being short-circuited by contact.

[0065] In a feasible embodiment, when the temperature control device in the circuit only includes the first temperature control device 41, the first temperature control device 41 is installed in the heating cavity 302, used to collect the first temperature at the side of the first temperature control device 41 in the heating cavity 302, and control the electrical connection state of the heating body 20 and the power supply module 70 according to the first temperature. When the first temperature is greater than the first preset temperature threshold, the first temperature control device 41 is in the disconnected state, and the heating body 20 is disconnected with the power supply module 70. That is, in this embodiment, the heating state of the heating body 20 is regulated by setting the first temperature control device 41, and the use safety of the hair care device is improved. Wherein, the first temperature is the ambient temperature detected by the first temperature control device 41, and the first preset temperature threshold is the limit temperature of the first temperature control device 41. Specifically, when the first temperature control device 41 detects that the first temperature is greater than the first preset temperature threshold, the first temperature control device 41 will be fused, so that the circuit between the temperature control group, the heating body 20 and the power supply module 70 is disconnected, and the power supply module 70 cannot continue to provide working current to the heating body 20, thereby protecting the heating body 20, other electrical components or structural components from being burned out due to excessive current, and preventing damage to the hair or other dried objects.

[0066] The first temperature control device 41 is used to collect the first temperature at the side of the first temperature control device 41, and when the first temperature is greater than the first preset temperature threshold, the first temperature control device 41 is in the disconnected state, so that the circuit is in the open circuit state. As shown in Figure 5 to Figure 7 In a specific embodiment, the first temperature control device 41 is a fuse. Wherein, the first temperature control device 41 is arranged along the circumference of the support base 31, and the first temperature control device 41 is clamped to the end of the heating body 20 facing the air outlet 1003. That is, the first temperature control device 41 is arranged transversely relative to the axis of the support base 31, so as to be more fully contacted with the hot air flow flowing through the air outlet 1003. Moreover, a clamping groove is arranged on the support member, so that the pin of the first temperature control device 41 is clamped into the clamping groove. Of course, the clamping groove can also be arranged on the outer cylinder 32 to fix the first temperature control device 41.

[0067] In an embodiment, when the first temperature control device 41 is arranged along the circumference of the support base 31, the circuit includes the power supply module 70, the heating body 20 and the first temperature control device 41. The arrangement of the conductive sheet 50 is described in detail below according to the arrangement of the temperature control device, as follows:

[0068] As shown in Figure 8aAs shown in some embodiments, the power supply module 70, the first port and the second port are close to the air inlet 1002, and the two terminals of the first temperature control device 41 are close to the air outlet 1003. In this case, the loop includes two conductive sheets 50, and the two conductive sheets 50 are connected to the first port and the power supply module 70, respectively, and the two terminals of the first temperature control device 41 are connected to the heating body 20. Specifically, one terminal of the first temperature control device 41 is connected to the first port through a conductive sheet 50, the other terminal of the first temperature control device 41 is connected to one end of the power supply module 70 through another conductive sheet 50, and the other end of the power supply module 70 is connected to the second port.

[0069] As shown in some embodiments, the power supply module 70 is arranged away from the air outlet 1003, and the first port and the second port of the heating body 20 and the two terminals of the first temperature control device 41 are arranged close to the air outlet 1003. In this case, the loop includes two conductive sheets 50, and the first temperature control device 41 is connected to the heating body 20, and the two ports P1 and P2 on the first temperature control device 41 and the heating body 20 that are not interconnected are connected to the power supply module 70 through the two conductive sheets 50, respectively. Figure 8b

[0070] As can be seen from the above, according to the different arrangements of the first port and the second port on the two-layer heating body, which are always on the same side and relative to the air outlet 1003 and the air inlet 1002, there are multiple current flow conditions in the loop between the first temperature control device 41, the two-layer heating body and the power supply module 70, so that both of the two conductive sheets 50 in the loop can be arranged through the heat insulation space, thereby reducing the radial dimension of the outer cylinder 32.

[0071] As shown in some embodiments, the first temperature control device 41 is arranged along the circumference of the support base 31. In another possible implementation, the temperature control group of the heating assembly 2 further includes a second temperature control device 42, which is arranged on the support body 33, and the power supply module 70, the heating body 20, the first temperature control device 41 and the second temperature control device 42 form a loop, and the second temperature control device 42 is used to detect the second ambient temperature at the installation position thereof and to control the on-off state of the loop according to the second ambient temperature. Figure 5 to Figure 7 The second temperature control device 42 is used to collect the second temperature on the circumferential side of the second temperature control device 42, and when the second temperature is greater than a second preset temperature threshold, the second temperature control device 42 is in an off state, so that the loop is in an open circuit state, and when the second temperature is less than or equal to the second preset temperature threshold, the second temperature control device 42 is in an on state, so that the loop is in a closed circuit state. Specifically, the second temperature control device 42 is a temperature controller.

[0072]

[0073] ​​In one embodiment, the circuit includes a power supply module 70, a heating element 20, a first temperature control unit 41, and a second temperature control unit 42. The first temperature control unit 41 and the second temperature control unit 42 are arranged near the air outlet 1003 and along the circumference of the support base 31. The arrangement of the conductive sheet 50 is described in detail below:

[0074] like Figure 8c As shown, in some embodiments, the first temperature control 41 and the second temperature control 42 are arranged near the air outlet 1003 and along the circumference of the support base 31. The first and second ports of the heating element 20 and the power supply module 70 are positioned away from the air outlet 1003. When the two ports of the first temperature control 41 and the two ports of the second temperature control 42 are positioned near the air outlet 1003, the heating element 20 is connected to the power supply module 70, and the first temperature control 41 and the second temperature control 42 are connected. The heating component 2 includes two conductive sheets 50. The two non-interconnected ports P3 and P4 on the first temperature control 41 and the second temperature control 42 are connected via the two conductive sheets 50 to the two non-interconnected ports P5 and P6 on the power supply module 70 and the heating element 20, respectively. Of course, in another specific embodiment, the positions of the first temperature control 41 and the second temperature control 42 in the circuit can be interchanged.

[0075] like Figure 8d As shown, in some embodiments, the first temperature control 41 and the second temperature control 42 are arranged near the air outlet 1003 and along the circumference of the support base 31. When the power supply module 70 is located away from the air outlet 1003, and the first and second ports of the heating element 20, the two ports of the first temperature control 41, and the two ports of the second temperature control 42 are located near the air outlet 1003, the first temperature control 41, the second temperature control 42, and the heating element 20 are connected. The heating component 2 includes two conductive sheets 50. The two non-interconnected ports P7 and P8 of the first temperature control 41, the second temperature control 42, and the heating element 20 are respectively connected to the power supply module 70 via the two conductive sheets 50. Of course, in other specific embodiments, the positions of the first temperature control 41, the second temperature control 42, and the heating element 20 can be interchanged. For example, the first temperature control 41 and the second temperature control 42 are connected to the two conductive sheets 50, and the two ports of the heating element 20 are respectively connected to the two temperature controls.

[0076] In one embodiment, the circuit includes a power supply module 70, a heating element 20, a first temperature control unit 41, and a second temperature control unit 42. The first temperature control unit 41 is arranged circumferentially along the support base 31, and the second temperature control unit 42 is arranged axially along the support base 31. Compared to the embodiment where the second temperature control unit 42 is arranged circumferentially along the support base 31, this embodiment can reduce the amount of conductive sheet 50 and heat insulation space required. The arrangement of the conductive sheet 50 is described in detail below:

[0077] likeFigure 8e As shown, in some embodiments, the first temperature control element 41 is arranged circumferentially along the support base 31, and the second temperature control element 42 is arranged axially along the support base 31 (i.e., the two ports of the second temperature control element 42 are close to the first end and the second end, respectively, and the two ports of the second temperature control element 42 are close to the air outlet 1003 and the air inlet 1002, respectively). When the first and second ports of the heating element 20 are positioned close to the air outlet 1003, and the power supply module 70 is positioned away from the air outlet 1003, and the two ports of the first temperature control element 41 are positioned close to the air outlet 1003, the circuit includes a conductive sheet 50. The port P9 on the heating element and the first temperature control element 41 that is not electrically connected to each other and not electrically connected to the second temperature control element 42 is electrically connected to the end of the conductive sheet 50 that is close to the air outlet 1003. Of course, in another specific embodiment, the positions of the heating element 20 and the first temperature control element 41 in the circuit can be interchanged.

[0078] like Figure 8f As shown, in some embodiments, the first temperature control element 41 is arranged circumferentially along the support base 31, and the second temperature control element 42 is arranged axially along the support base 31 (i.e., the two ports of the second temperature control element 42 are close to the first end and the second end, respectively, and the two ports of the second temperature control element 42 are close to the air outlet 1003 and the air inlet 1002, respectively). When the power supply module 70 is located away from the air outlet 1003, and the first port and the second port are located away from the air outlet 1003, the circuit includes a conductive sheet 50. The port of the first temperature control element 41 that is not electrically connected to the second temperature control element 42 is electrically connected to the end of the conductive sheet 50 that is close to the air outlet 1003. Of course, in another specific embodiment, the positions of the heating element 20 and the power supply module 70 in the circuit can be interchanged.

[0079] As can be seen from the above embodiments, the power supply module 70, the heating element and the temperature control group form a circuit. The temperature control group is used to detect the ambient temperature at its installation location and adjust the on / off state of the circuit according to the ambient temperature.

[0080] The following describes the installation of the second temperature control 42.

[0081] like Figure 2 , Figure 5 As shown, in some embodiments, the heating cavity 302 has a recessed mounting cavity 311 on its radially inward side, and the mounting cavity 311 communicates with the heating cavity 302. The second temperature control device 42 is installed in the mounting cavity 311.

[0082] Specifically, the mounting cavity 311 is recessed radially inward on the heating cavity 302, without affecting the radial dimension of the support base 31 and the outer cylinder 32. The opening of the mounting cavity 311 is located on the side facing the heating cavity 302, which makes the mounting cavity 311 communicate with the heating cavity 302, not only facilitating the assembly of the second temperature control 42, but also reducing the interference in the assembly of the second temperature control 42 and the heating element. Moreover, due to the communication between the mounting cavity 311 and the heating cavity 302, there is no thermal isolation between the second temperature control 42 and the heating cavity 302, so that the second temperature control 42 can more fully perceive the temperature in the heating cavity 302. It should be noted that the ambient temperature (i.e., the second temperature) in the heating cavity 302 detected by the second temperature control 42 is located on the side of the second temperature control 42, and the ambient temperature is perceived to regulate the electrical connection state of the heating element and the power supply module 70. Among them, the second preset temperature threshold is actually the safe working temperature of the second temperature control 42, thereby improving the use safety of the hair care device. That is, in the present embodiment, the first temperature control 41 and the second temperature control 42 are used in cooperation to have double protection for the heating element, thereby improving the use safety of the hair care device.

[0083] As shown in Figure 2 , Figure 5 In some embodiments, the length of the mounting cavity 311 extends along the axial direction of the support base 31, and the second temperature control 42 is arranged in the mounting cavity 311 along the axial direction of the support base 31. Such an arrangement makes the current in the second temperature control 42 run substantially parallel to the axis of the support base 31, and facilitates the second temperature control 42 to detect a more uniform temperature, including the temperature near the air outlet 1003 and the temperature near the air inlet 1002, and the detection result will be more accurate. The length of the mounting cavity 311 extends along the axial direction of the support base 31, and the width of the mounting cavity 311 extends along the circumferential direction of the support base 31, so as to accommodate the second temperature control 42 in the mounting cavity 311. Assuming that the second temperature control 42 uses a larger size temperature controller, the length direction of the temperature controller can be arranged along the axial direction of the support base 31. Compared with the transverse arrangement of the temperature controller relative to the support base 31, the above arrangement has more sufficient space and is more convenient for the installation of the temperature controller. Arranging the length direction of the temperature controller along the axis of the support base 31 not only meets the temperature monitoring requirement, but also ensures that the temperature controller will not be bent, and one conductive sheet can be saved to simplify the structure. In a specific embodiment, the second temperature control 42 has two connecting holes, and a screw passes through the connecting holes to fix the second temperature control 42 to the cavity wall of the mounting cavity 311.

[0084] In a specific embodiment, the second preset temperature threshold ranges from 150°C to 160°C. This temperature range is set to meet the sufficient dry hair working temperature of the hair care device while ensuring safe use temperature. For example, the second temperature is 150°C, 156°C, 160°C, etc. The first preset temperature threshold is 199.6°C-200.4°C, for example, the first preset temperature threshold is 199.6°C, 200°C, 200.4°C, etc. The first preset temperature threshold is higher than the second preset temperature threshold, and the first preset temperature threshold is the critical temperature for use of the hair care device. If the first preset temperature threshold is exceeded, the hair care device will be damaged. In fact, the difference between the second preset temperature threshold and the first preset temperature threshold is about 60°C. This difference is set to meet the working requirements while preventing the heating element from being suddenly disconnected.

[0085] As can be seen from the above, the temperature adjusting member one 41 and the temperature adjusting member two 42 are connected in series in a series manner. At the same time, compared with the temperature adjusting member one 41 and the temperature adjusting member two 42, under the action of the second temperature control 42, after the heating body 20 is disconnected from the power supply module 70, when the second temperature is lower than the second preset temperature threshold, the connection can be restored to continue use. When the first temperature detected by the first temperature control 41 reaches the first preset temperature threshold, the disconnection of the heating body 20 from the power supply module 70 is not recoverable. At the same time, the first temperature control 41 usually starts to work after the second temperature control 42 fails. The first temperature control 41 is arranged at the air outlet 1003 because the air at the air outlet 1003 is heated by the heating body 20 and has the highest temperature. That is, through double protection, the safety of use is improved.

[0086] In some embodiments, the main body 1000 further comprises a temperature detection member arranged in the heating cavity 302 and connected to the power supply module 70. The temperature detection member is used to collect a third temperature located at the periphery of the temperature detection member in the heating cavity 302 and feed back the third temperature to the whole machine controller. The whole machine controller controls the third temperature to be constant. Specifically, the ambient temperature in the heating cavity 302 is monitored by the temperature detection member and fed back to the whole machine controller. The whole machine controller sends instructions to the power supply module 70 to adjust the current delivered to the heating body 20 to be in a relatively stable state, thereby ensuring that the heating body 20 can stably output heat. The temperature detection member is connected to the power supply module 70 by a wire, and because the temperature detection member has a certain distance from any one of the two electrode ports on the power supply module 70, the wire passes through the wire routing from the inside of the support body to the wire routing cavity 301 and is connected to the power supply module 70. The temperature detection member is arranged in parallel with the temperature control group described above. In a specific embodiment, the temperature detection member adopts a negative temperature coefficient thermistor.

[0087] As Figure 4 to Figure 7As shown, in some embodiments, the first temperature control 41 and the temperature detection piece are arranged at intervals along the circumference of the support base 31. That is, the first temperature control 41 and the temperature detection piece are both located at the air outlet 1003 of the air supply channel 1001 to detect the temperature at the air outlet 1003. Moreover, the first temperature control 41 and the temperature detection piece are arranged at intervals to ensure that there is no installation interference between them, facilitating their respective assembly and reducing temperature detection interference. In a specific embodiment, the temperature detection piece has two connecting arms arranged at intervals along the circumference of the support base 31, and the corresponding support base 31 is provided with a connecting groove 313, and the connecting arms are clamped in the connecting groove 313 to achieve assembly of the temperature detection piece relative to the support base 31. Correspondingly, the first temperature control 41 can also use the same connection method. In another specific embodiment, the temperature detection piece and the first temperature control 41 are arranged at an angle of 120 degrees. In other embodiments, the two can be arranged opposite each other. In still another embodiment, the first temperature control 41 and the temperature detection piece can both be clamped to the outer cylinder 32 by the connecting arm 701, at which time the connecting groove is provided on the outer cylinder 32. Of course, the first temperature control 41 can be clamped to the support base 31, and the temperature detection piece can be clamped to the outer cylinder 32. Regardless of which setting method is used, as long as it can achieve stable installation of the first temperature control 41 and the temperature detection piece.

[0088] Therefore, in the present embodiment, the main body 1000 has at least two current loops, the first current loop being the power supply module 70, the heating body 20, and the temperature control group, and the second current loop being the power supply module 70 and the temperature detection piece. The two current loops work independently. The first current loop mainly controls the connection state of the heating body 20 and the power supply module 70 through the setting of the temperature control group 40, and the second current loop mainly controls the constant heating power of the heating body 20 through the setting of the temperature detection piece.

[0089] As shown in FIG. 1, Figure 2 , Figure 5 As shown, in some embodiments, the heating cavity 302 is arranged between the inner wall of the outer cylinder 32 and the outer wall of the support base 31, and the mounting cavity 311 is constructed on the support base 31 and recessed radially inward along the outer wall of the support base 31.

[0090] In conclusion, the temperature adjusting member 41, the temperature adjusting member 42, the double-layer heating layer 21 and the temperature detecting member are all arranged in the heating cavity 302, that is, outside the supporting base 31. Therefore, if the conductive sheet 50 is arranged in the heating cavity 302, it will have the risk of short circuit due to the contact with the heating wire of the heating element. If a heat insulation space is arranged outside the heating body 20, it will also cause the waste of space. Therefore, in the present application, the heat insulation space is arranged on the supporting body 33, so that the conductive sheet 50 can pass through the heat insulation space, which is convenient for the arrangement of the wires and reduces the radial dimension of the whole outer cylinder 32.

[0091] In a specific embodiment, the distance between the first layer of heating elements 21 of the inner ring and the outer wall of the supporting base 31 is between 0.1mm and 0.5mm, and the distance between the second layer of heating elements 22 of the outer ring and the inner wall of the outer cylinder 32 is between 0.1mm and 0.5mm. By limiting the distance between the heating body 20 and the outer cylinder 32 on both sides in the radial direction, it is ensured that the heating body 20 has sufficient installation space. Moreover, because of the limitation of the above distance, the radial two sides of the heating body 20 do not have enough space for wiring, so the conductive sheet 50 is arranged from the heat insulation space on the supporting body 33. In another specific embodiment, the inner wall of the outer cylinder 32 and the outer wall of the supporting base 31 are both surrounded by a second heat insulation sheet, which reduces the heat transfer from the heating body 20 to the outer cylinder 32 and the supporting base 31, thereby reducing the heat loss of the heating body 20. The second heat insulation sheet on the outer wall of the supporting base 31 is located at the opening of the installation cavity 311, which needs to be reserved to allow the second temperature control member 42 to detect the ambient temperature in the heating cavity 302. The second heat insulation sheet is made of mica. Moreover, the second heat insulation sheet arranged around the outer wall of the supporting base 31 protects the supporting base 31, and allows the electrical components to be arranged in the supporting base 31 and the wires to be arranged in the wiring cavity in the supporting base 31, because these electrical components and wires are protected by the second heat insulation sheet and will not be affected by the heat of the heating body 20.

[0092] As Figure 2 , Figure 3 and Figure 11As shown in the drawings, in some embodiments, the main body 1000 further comprises a circuit board set 10 connected to the power supply module 70, the circuit board set 10 and the heating body 20 are sequentially arranged along the axial direction, and the heating body 20 and the temperature control set are both connected to the power supply module 70 through the circuit board set 10. The circuit board set 10 comprises a circuit board frame 11 and a circuit board 12 mounted on the circuit board frame 11, and the circuit board frame 11 is fixedly connected with the heating body 20. The circuit board frame 11 is sealingly connected with the outer cylinder 32 at the end away from the air outlet 1003, and the circuit board frame 11 is configured with a second wiring hole 111 communicating with the first wiring hole 312. Specifically, the circuit board frame 11 is used to support the circuit board 12, and the sealing connection between the circuit board frame 11 and the outer cylinder 32 improves the sealing performance of the air supply channel 1001. The cooperation between the second wiring hole 111 and the first wiring hole 312 restricts the extension track of the wire towards the circuit board 12, thereby improving the neatness of the wiring. In a specific embodiment, the aperture of the first wiring hole 312 is larger than that of the second wiring hole 111, so that the extension end of the second wiring hole 111 can be inserted into the first wiring hole 312.

[0093] As shown in the drawings, Figure 2 , Figure 3 and Figure 11 In a specific embodiment, the circuit board 12 is arranged on the side of the circuit board frame 11 away from the air supply channel 1001, and a wire plug 112 is arranged at the second wiring hole 111, and the wire passing through the second wiring hole 111 is connected to the circuit board 12 through the wire plug 112. Such an arrangement isolates the circuit board 12 from the air supply channel 1001, thereby improving the protection of the circuit board 12. The arrangement of the wire plug 112 at the second wiring hole 111 improves the sealing performance between the second wiring hole 111 and the wire. Specifically, the cooperation between the first wiring hole 312 and the second wiring hole 111, and the arrangement of the wire plug 112 at the second wiring hole 111, isolate the air supply channel 1001 from the wiring cavity 301 on the support base 31, that is, the airflow only flows in the heating cavity 302 and does not pass through the wiring cavity 301, thereby achieving the isolation of the air duct and the wiring. Such an arrangement improves the protection of the wire and other structures arranged in the wiring cavity 301.

[0094] In general, when the circuit board 12 is provided, the circuit board 12 is connected to the power supply module 70 through a switch, and the electrical connection state between the power supply module 70 and the circuit board 12 is controlled through the switch. The wires connected to the power supply module 70 are all connected to the circuit board 12, and then the control is realized through the connection line between the circuit board 12 and the power supply module 70. It should be noted that the circuit board 12 here is a main circuit board. The main body 1000 further comprises a display screen circuit board located on the side of the circuit board 12 away from the air outlet 1003, and the display screen circuit board is connected to the power supply module 70 through the main circuit board and the switch. The motor of the hair care device is electrically connected to the main circuit board.

[0095] As shown in Figure 2 and Figure 3 , in some embodiments, the main body 1000 further comprises a whole machine shell 100 covering the outer barrel 32 and the circuit board group 10, and the first gap 101 between the whole machine shell 100 and the outer barrel 32 has a width of 0.5-2mm along the radial direction of the outer barrel 32. Specifically, the whole machine shell 100 is arranged to protect the outer barrel 32, the circuit board group 10, the support base 31, and the heating body 20, so that external impurities cannot easily enter the inside of the hair care device. The arrangement of the first gap 101 between the outer barrel 32 and the whole machine shell 100 ensures that the adjustment member of the same size of the whole machine shell 100 can be adapted to the reduced radial size of the outer barrel 32. Moreover, the width of the first gap 101 is limited, which ensures the stable installation of the outer barrel 32 relative to the whole machine shell 100, and at the same time, an effective heat insulation space is provided between the two, thereby reducing the heat loss of the heating body 20.

[0096] Finally, it needs to be added that, as shown in Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 12 , in the present embodiment, the diameter of the second layer heating element 22 is greater than that of the first layer heating element 21, and the second layer heating element 22 is sleeved outside the first layer heating element 21. The first layer heating element 21 and the second layer heating element 22 have basically the same structure, both of which include heating wires. Each layer of the heating layer corresponds to a plurality of support plates arranged at intervals around the axis of the support base 31. Each support plate is provided with a mounting groove on the outer side, and the heating wire is wound on the plurality of support plates 201 and fixed through the mounting groove, thereby forming the whole heating body 20. Among them, the support plate 201 adopts mica plate. In another embodiment, the temperature adjusting member 42 and the temperature detecting member can also be assembled by opening a groove on the support plate. Among them, the support plate provided in the second layer heating element 22 is provided with a relief hole to avoid the heating wire in the first layer heating element 21.

[0097] In addition, it needs to be pointed out that the heating wire in the above Figure 4 to Figure 7 is drawn as a straight line, and in actual use, in order to increase the heating efficiency, the heating wire can be in a wave shape as shown in Figure 12 , Figure 12 , wherein point A represents the position of the heating wire supported by the support member on the first layer heating element 21, and point B represents the position of the heating wire supported by the support member on the second layer heating element 22, Figure 12 for simplicity, the two layers of heating wires are not connected in the drawing for the convenience of illustrating the two layers of heating elements, and in actual use, the heating wire of the first layer heating element 21 is connected to the heating wire of the second layer heating element 22.

[0098] The conductive sheet 50, heating element 20, first temperature control element 41, and second temperature control element 42 are electrically connected via conductive connectors. The conductive connectors are provided with conductive connecting ears and are fixed to the support. The electrode terminals of each component are wound around the connecting ears, and the conductive connectors complete the electrical connection between the two terminals and the fixation of each terminal. For example, for... Figure 4 to Figure 7 In the embodiment shown, one electrode terminal of the heating element 20 is connected to one end of the conductive sheet 50 via a conductive connector 81, the other end of the conductive sheet 50 is connected to one pin of the first temperature control 41 via a conductive connector 82, the other pin of the first temperature control 41 is connected to one pin of the second temperature control 42 via a conductive connector 83, one pin of the second temperature control 42 is fixed to the support via a conductive connector 84, the other pin of the second temperature control 42 is electrically connected to the power supply module 70 via a conductive connector 85, and the other electrode terminal of the heating element 20 is electrically connected to the power supply module 70 via a conductive connector 86.

[0099] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The above embodiments only illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A hair care device comprising an air inlet and an air outlet, characterised in that, The hair care device further comprises a heating assembly, when the hair care device is in operation, the air flow entering the air inlet flows to the air outlet via the heating assembly, the heating assembly comprises: a heating body comprising a first port and a second port, the first port and the second port are arranged close to or away from the air outlet; a support body comprising a plurality of support members, the support members extend from a first end to a second end, the first end is close to the air outlet, the second end is away from the air outlet, the heating body is arranged around the plurality of support members, the support members are made of heat insulation material and are used to support the heating body; a plurality of the support members comprise at least one set of heat insulation space support members, each set of the heat insulation space support members forms at least one heat insulation space; a first temperature control device arranged at one end of the support body close to the air outlet, a power supply module, the heating body and the first temperature control device form a loop, the first temperature control device is used to detect the first ambient temperature at the installation position thereof and to control the on-off state of the loop according to the first ambient temperature, the power supply module is arranged away from the air outlet; at least one conductive sheet arranged in at least one of the heat insulation spaces, the heat insulation spaces separate the conductive sheet from the heating body, the at least one conductive sheet is used to connect the port close to the air outlet in the loop to the port away from the air outlet in the loop to form the loop; each set of the heat insulation space support members comprises a first heat insulation space support member and a second heat insulation space support member adjacent to the first heat insulation space support member, the first heat insulation space support member and the second heat insulation space support member form the heat insulation space, the heat insulation space extends in the direction from the air inlet to the air outlet, the conductive sheet is clamped between the first heat insulation space support member and the second heat insulation space support member in the thickness direction thereof, the first thickness of each set of the heat insulation space support members is the same as the second thickness of other support members, in the radial direction of the heating assembly, the size of each set of the heat insulation space support members is the same as the radial size of the adjacent support members in the circumferential direction of the heating assembly.

2. A hair care appliance as claimed in claim 1, characterised in that, When the first port and the second port of the heating body, the power supply module are arranged away from the air outlet, and the two terminals of the first temperature control device are arranged close to the air outlet, the heating body is connected with the power supply module, the heating assembly comprises two conductive sheets, the two conductive sheets connect the two ports of the first temperature control device to the power supply module and the heating body respectively; or, when the power supply module is arranged away from the air outlet, the first port and the second port of the heating body, the two terminals of the first temperature control device are arranged close to the air outlet, the first temperature control device is connected with the heating body, the heating assembly comprises two conductive sheets, the two terminals of the first temperature control device and the heating body which are not interconnected are connected to the power supply module via the two conductive sheets respectively.

3. The hair care appliance of claim 1, wherein, The heating assembly further comprises a second temperature control device arranged on the support body, the power supply module, the heating body, the first temperature control device and the second temperature control device form the loop, and the second temperature control device is used for detecting a second ambient temperature at the installation position of the second temperature control device and regulating the on-off state of the loop according to the second ambient temperature.

4. A hair care appliance as claimed in claim 3, characterised in that, When the first port and the second port of the heating body and the power supply module are arranged away from the air outlet, and the two ports of the first temperature control device and the two ports of the second temperature control device are arranged close to the air outlet, the heating body is connected with the power supply module, the first temperature control device is connected with the second temperature control device, the heating assembly comprises two conductive sheets, and the two ports of the first temperature control device and the second temperature control device which are not interconnected are connected to the two ports of the power supply module and the heating body which are not interconnected via the two conductive sheets; or, When the power supply module is arranged away from the air outlet, and the first port and the second port of the heating body, the two ports of the first temperature control device and the two ports of the second temperature control device are arranged close to the air outlet, the first temperature control device and the second temperature control device are connected with the heating body, the heating assembly comprises two conductive sheets, and the two ports of the first temperature control device, the second temperature control device and the heating body which are not interconnected are connected to the power supply module via the two conductive sheets.

5. The hair care appliance of claim 3, wherein, The two ports of the second temperature control device are arranged close to the first end portion and the second end portion respectively, and the two ports of the first temperature control device are arranged close to the air outlet, the heating assembly comprises one conductive sheet; When the first port and the second port are arranged close to the air outlet, the heating body, the first temperature control device and the second temperature control device are connected, and the ports of the heating body and the first temperature control device which are not electrically connected with each other and not electrically connected with the second temperature control device are electrically connected with one end of the conductive sheet close to the air outlet; when the first port and the second port are arranged away from the air outlet, the port of the first temperature control device which is not electrically connected with the second temperature control device is electrically connected with one end of the conductive sheet close to the air outlet.

6. The hair care appliance of claim 3, wherein, The first temperature control device is used for collecting a first temperature on the side of the first temperature control device, and when the first temperature is greater than a first preset temperature threshold, the first temperature control device is in an off state, so that the loop is in an open circuit state; the second temperature control device is used for collecting a second temperature on the side of the second temperature control device, and when the second temperature is greater than a second preset temperature threshold, the second temperature control device is in an off state, so that the loop is in an open circuit state; when the second temperature is less than or equal to the second preset temperature threshold, the second temperature control device is in an on state, so that the loop is in a closed circuit state.

7. The hair care appliance of claim 5, wherein, The support body further comprises a support base body, and the support base body has an installation cavity on the outer side, the installation cavity extends along the axial direction of the support base body, and the second temperature control device is installed in the installation cavity.

8. The hair care appliance of claim 6, wherein, The first preset temperature threshold ranges from 199.6°C to 200.4°C, and the second preset temperature threshold ranges from 150°C to 160°C.

9. The hair care appliance of claim 1, wherein, The support body further comprises a support base, the heating body comprises heating layers arranged in a positive even number of layers, and support frames for supporting the heating layers, and the heating layers in the positive even number of layers are stacked along the radial direction of the support base; each of the heating layers is provided with the support frame corresponding thereto, and the plurality of support members form the support frames corresponding in number to the layers of the heating layers.

10. A hair care appliance as claimed in claim 9, characterised in that, The plurality of support members comprises a plurality of first support members and a plurality of second support members, the number of the heating layers is two, the heating body comprises a first layer of heating members and a second layer of heating members, the first layer of heating members and the second layer of heating members are sequentially stacked along the radial direction of the support base, the plurality of first support members are used to support the first layer of heating members, and the plurality of second support members are used to support the second layer of heating members.

11. A hair care appliance as claimed in claim 10, characterised in that, The first layer of heating members is an outer layer of heating members, and the second layer of heating members is an inner layer of heating members.

12. The hair care appliance of claim 10, wherein, The first support members and the second support members are mounted on the support base, and the support base is located inside the heating body.

13. The hair care appliance of claim 11, wherein, The plurality of first support members comprises at least one group of the heat insulation space support members, each group of the heat insulation space support members comprises a first heat insulation space support member and a second heat insulation space support member adjacent to the first heat insulation space support member, the first heat insulation space support member and the second heat insulation space support member form the heat insulation space, and the conductive sheet is clamped between the first heat insulation space support member and the second heat insulation space support member along the thickness direction thereof.

14. The hair care appliance of claim 10, wherein, A first heat insulation member is arranged between the first layer of heating members and the second layer of heating members.

15. The hair care appliance of claim 11, wherein, The heating assembly further comprises a temperature detection member; The temperature detection member is used to collect a third temperature on the periphery of the temperature detection member and feed back the third temperature to a whole-machine controller, and the whole-machine controller controls the third temperature to be constant.

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