Hair care device

Abstract

The present application belongs to the technical field of small household appliances, and discloses a hair care device, which comprises a heating assembly, the heating assembly comprises a first layer of heating elements, a second layer of heating elements and a heat insulation element, a heat dissipation channel is arranged on the heat insulation element between the first layer of heating elements and the second layer of heating elements, there are communication areas corresponding to the heat dissipation areas on the first layer of heating elements and the second layer of heating elements, and there is no heat insulation element between the first layer of heating elements and the second layer of heating elements at the communication areas, so that the heat dissipation of the communication areas corresponding to the heat dissipation channel is not affected by the heat insulation element, the heat dissipation of the first layer of heating elements and the second layer of heating elements is enhanced, the phenomenon that the first layer of heating elements and the second layer of heating elements are unevenly heat-dissipated can be solved to a certain extent, and the heat dissipation uniformity of the first layer of heating elements and the second layer of heating elements can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of personal care tools, and in particular to a hair care device. BACKGROUND

[0002] Hair dryers are widely used in daily life because they can dry or style hair. In order to achieve rapid drying of hair, a heating wire is usually provided in existing hair dryers. In order to meet the needs of heating efficiency and the size of the hair dryer, a double-layer heating wire is provided. In the double-layer heating wire, the heating wire in the middle part of the outer layer heating wire between the two support pieces is far away from the two side support pieces and lacks support, so that the heating wire may fall off and cause a short circuit with the inner layer heating wire. In order to avoid the inner layer heating wire from being in contact with the outer layer heating wire, a mica sheet is provided between the inner layer heating wire and the outer layer heating wire. However, the provision of the mica sheet causes uneven heat dissipation of the inner layer heating wire and the outer layer heating wire. SUMMARY

[0003] Therefore, it is necessary to provide a hair care device which can avoid the inner layer heating wire from being in contact with the outer layer heating wire when the heating wire falls off and can improve the uneven heat dissipation of the inner layer heating wire and the outer layer heating wire.

[0004] The present application provides a hair care device, which comprises a whole body, a heating assembly, an air inlet and an air outlet. The whole body comprises a heating cavity, and the heating assembly is arranged in the heating cavity. When the hair care device is in operation, the airflow entering through the air inlet flows to the air outlet through the heating assembly. The heating assembly comprises:

[0005] a first layer of heating pieces;

[0006] a second layer of heating pieces arranged outside the first layer of heating pieces;

[0007] a plurality of first support pieces for supporting the first layer of heating pieces;

[0008] a plurality of second support pieces for supporting the second layer of heating pieces;

[0009] a heat insulation piece arranged between the first layer of heating pieces and the second layer of heating pieces, wherein the heat insulation piece is provided with a heat dissipation channel, and the first layer of heating pieces and the second layer of heating pieces comprise a first communication area and a second communication area corresponding to the heat dissipation channel.

[0010] In one embodiment, the second layer of heating pieces comprises a plurality of middle area heating segments located at the middle area of any two adjacent second support pieces, and the heat insulation piece can separate the middle area heating segments from the first layer of heating pieces.

[0011] In one of the embodiments, the heat dissipation passage is at least one hole provided on the heat insulation member, the first communication area is an area on the first layer of heat generating members corresponding to the at least one hole, and the second communication area is an area on the second layer of heat generating members corresponding to the at least one hole.

[0012] In one of the embodiments, the heat insulation member comprises a partition area and a heat dissipation area, the partition area is an area on the heat insulation member corresponding to the plurality of intermediate area heat generating sections, the heat dissipation area is an area on the heat insulation member other than the partition area, the at least one hole comprises at least one first hole, the at least one first hole is provided on the heat dissipation area, and the partition area is capable of partitioning the intermediate area heat generating section and the first layer of heat generating members.

[0013] In one of the embodiments, the at least one hole further comprises at least one second hole, the at least one second hole is provided on the partition area, and the at least one second hole is capable of partitioning the intermediate area heat generating section and the first layer of heat generating members.

[0014] In one of the embodiments, when the heat generating wires forming the second layer of heat generating members are in a wavy shape, the minimum diameter of the at least one second hole is smaller than the length of a valley section of the intermediate area heat generating section close to the heat insulation member.

[0015] In one of the embodiments, a plurality of first holes are provided on the heat dissipation area, and the plurality of first holes are uniformly distributed on the heat dissipation area; a plurality of second holes are provided on the partition area, and the plurality of second holes are uniformly distributed on the partition area.

[0016] In one of the embodiments, the at least one hole comprises at least one third hole, the at least one third hole is capable of partitioning the intermediate area heat generating section and the first layer of heat generating members, the first communication area is an area on the first layer of heat generating members corresponding to the at least one third hole, and the second communication area is an area on the second layer of heat generating members corresponding to the at least one third hole.

[0017] In one of the embodiments, when the heat generating wires forming the second layer of heat generating members are in a wavy shape, the minimum diameter of the at least one third hole is smaller than the length of a valley section of the intermediate area heat generating section close to the heat insulation member.

[0018] In one of the embodiments, a plurality of third holes are provided on the heat insulation member, and the plurality of third holes are uniformly distributed on the heat insulation member.

[0019] In one of the embodiments, the heat insulation member comprises a plurality of sub heat insulation members, and the heat dissipation passage comprises an area between two adjacent sub heat insulation members.

[0020] In one of the embodiments, the second layer heating element comprises a plurality of intermediate region heating sections located at the intermediate regions between any two adjacent second support members; each sub heat insulation member is located between each intermediate region heating section and the first layer heating element.

[0021] In one of the embodiments, the plurality of first support members are arranged corresponding to the plurality of intermediate region heating sections.

[0022] In one of the embodiments, the heating assembly further comprises a support body; the plurality of first support members are arranged on the support body in a spaced manner with the support body as the center; and the plurality of second support members are arranged on the support body in a spaced manner with the support body as the center.

[0023] The present application provides a hair care device, which comprises a heating assembly, the heating assembly comprising a first layer heating element, a second layer heating element and a heat insulation member, a heat dissipation channel being arranged on the heat insulation member located between the first layer heating element and the second layer heating element, and a communication region corresponding to the heat dissipation region being present on the first layer heating element and the second layer heating element, at the communication region, there is no heat insulation member between the first layer heating element and the second layer heating element, the heat dissipation of the communication region corresponding to the heat dissipation channel is not affected by the heat insulation member, the heat dissipation of the first layer heating element and the second layer heating element is enhanced, and thus the phenomenon of uneven heat dissipation of the first layer heating element and the second layer heating element can be solved to a certain extent, and the heat dissipation uniformity of the first layer heating element and the second layer heating element can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A schematic view of the hair care device provided in the present application is shown in the figure;

[0025] Figure 2 A schematic view of the hair care device provided in the present application is shown in the figure; Figure 1 A sectional view of the hair care device provided in the present application is shown in the figure;

[0026] Figure 3 A sectional view of the hair care device provided in the present application is shown in the figure; Figure 2 A partial sectional view of the hair care device provided in the present application is shown in the figure;

[0027] Figure 4 A schematic view of the hair care device provided in the present application is shown in the figure; Figure 3 A schematic view of the hair care device provided in the present application is shown in the figure;

[0028] Figure 5 A schematic view of the hair care device provided in the present application is shown in the figure; Figure 1 A partial exploded view of the hair care device provided in the present application is shown in the figure;

[0029] Figure 6 A sectional view of the hair care device provided in the present application is shown in the figure; Figure 4 A sectional view of the hair care device provided in the present application is shown in the figure;

[0030] Figure 7 A schematic view of the hair care device provided in the present application is shown in the figure;Figure 1 A partial view of a hair care appliance is provided;

[0031] Figure 8 A partial view of a hair care appliance is provided; Figure 7 A partial view of a hair care appliance is provided;

[0032] Figure 9 A partial view of a hair care appliance is provided; Figure 3 A partial view of a hair care appliance is provided;

[0033] Figure 10 A partial view of a hair care appliance is provided;

[0034] Figure 11 A partial view of a hair care appliance is provided;

[0035] Figure 12 A partial view of a hair care appliance is provided;

[0036] Figure 13 A partial view of a hair care appliance is provided;

[0037] Figure 14 A partial view of a hair care appliance is provided;

[0038] Figure 15 A partial view of a hair care appliance is provided.

[0039] Fig. 1 - head; 2 - tail; 10 - heating assembly; 20 - barrel; 21 - support body; 22 - outer barrel; 23 - heat insulation sheet; 31 - circuit board frame; 32 - wire control assembly; 40 - handle; 41 - air inlet channel; 42 - switch assembly; 43 - motor; 44 - air inlet; 91 - first sealing element; 92 - second sealing element; 93 - third sealing element; 201 - air outlet; 221 - slot; 222 - clamping arm; 311 - insertion strip; 312 - clamping protrusion; 313 - threading hole; 315 - air inlet; 316 - mounting hole; 321 - first layer plate; 322 - second layer plate; 323 - electrical element; 324 - heat dissipation element; 325 - circuit board; 1000 - whole machine body; 1001 - air supply channel; 2000 - whole machine shell; 2001 - touch assembly; 2003 - handle shell; 2004 - extended shell segment; 2005 - touch shell; 2006 - air duct shell; 2221 - clamping hole; 3001 - circuit cavity; 3002 - heating cavity; 3003 - heat insulation cavity; 3004 - mounting cavity; 3101 - first wall; 3102 - second wall; 3103 - recessed space; 9211 - threading hole; 51 - first layer heating element; 511 - first communication region; 52 - second layer heating element; 521 - intermediate region heating section; 53 - first support element; 54 - second support element; 55 - heat insulation element; 555 - sub heat insulation element; 551 - heat dissipation channel; 552 - partition region; 553 - heat dissipation region. DETAILED DESCRIPTION

[0040] The application will be further described below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are intended to be illustrative only and are not in any way limiting of the application. Furthermore, it should be understood that for ease of description, only the parts related to the application are shown in the drawings and not all the structures.

[0041] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0042] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "up", "down", "left", "right", etc., such as orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this application.

[0044] In addition, the terms "first" and "second" are only used to distinguish in description and have no special meanings.

[0045] like Figures 1 to 9 As shown, the present application provides a hair care device, primarily used for drying and styling hair. The device comprises a main body 1000, a circuit board frame 31, a wired control assembly 32, and a heating assembly 10. The hair care device has an air supply channel 1001, which connects the air inlet 315 and the air outlet 201. The circuit board frame 31 is mounted within the main body 1000 and divides the main body 1000 into a heating chamber 3002 and a circuit chamber 3001. The heating chamber 3002 is located above the air supply channel 1001, which is isolated from the air supply channel 1001. The heating assembly 10 is mounted within the heating chamber 3002, and the wired control assembly 32 is mounted on the circuit board frame 31 and located within the circuit chamber 3001.

[0046] Specifically, the placement of a circuit board rack 31 within the main body 1000 divides the main body 1000 into a heating chamber 3002 and a circuit chamber 3001. The heating chamber 3002 is located near the air outlet 201. The heating chamber 3002 houses the heating element 10 and is positioned above the air supply channel 1001. This allows airflow entering through the air supply channel 1001 to be heated by the heating element 10 and then released through the air outlet 201, thus achieving hair drying. The control panel 32 is located within the circuit chamber 3001, isolated from the heating chamber 3002, ensuring that airflow within the heating chamber 3002 does not affect the control panel 32.

[0047] Figure 10This is a partial structural diagram of a heating component provided by one embodiment of the present application; Figure 11 This is a structural diagram of a heating component provided by an embodiment of the present application; Figure 12 This is a schematic structural diagram of a thermal insulation component provided in one embodiment of the present application; Figure 13 This is a simplified diagram of a heating component provided in one embodiment of the present application; Figure 14 is a simplified diagram of a heating component provided in another embodiment of the present application; Figure 15 This is a simplified diagram of a heating component provided by another embodiment of the present application. Figures 10 to 15 As shown, the heating component 10 includes: a first layer of heating elements 51, a second layer of heating elements 52, a plurality of first support members 53, a plurality of second support members 54 and a thermal insulation member 55. The second layer of heating elements 52 is sleeved on the outside of the first layer of heating elements 51. The plurality of first support members 53 are used to support the first layer of heating elements 51. The plurality of second support members 54 are used to support the second layer of heating elements 52. The thermal insulation member 55 is arranged between the first layer of heating elements 51 and the second layer of heating elements 52, and a heat dissipation channel 551 is provided on the thermal insulation member 55. The first layer of heating elements 51 includes a first connecting area 511 corresponding to the heat dissipation channel 551, and the second layer of heating elements 52 includes a second connecting area corresponding to the heat dissipation channel 551. The first connecting area 511 is connected to the second connecting area.

[0048] The hair care device provided in this embodiment includes a heating component 10, which includes a first layer of heating elements 51, a second layer of heating elements 52 and a thermal insulation member 55. A heat dissipation channel 551 is provided on the thermal insulation member 55 located between the first layer of heating elements 51 and the second layer of heating elements 52. There is a connecting area corresponding to the heat dissipation area 553 on the first layer of heating elements 51 and the second layer of heating elements 52. In the connecting area, there is no thermal insulation member 55 between the first layer of heating elements 51 and the second layer of heating elements 52. The heat dissipation of the connecting area corresponding to the heat dissipation channel 551 will not be affected by the thermal insulation member 55, thereby enhancing the heat dissipation of the first layer of heating elements 51 and the second layer of heating elements 52, thereby solving the problem of uneven heat dissipation of the first layer of heating elements 51 and the second layer of heating elements 52 to a certain extent, and improving the heat dissipation uniformity of the first layer of heating elements 51 and the second layer of heating elements 52.

[0049] Preferably, Figure 10 、 Figure 11 As shown, the heat insulating member 55 is clipped onto the first support member 53. Of course, in another feasible embodiment, the heat insulating member 55 can also be clipped onto the second support member 54. In this arrangement, the heat insulating member 55 is fixed by using the existing support member, eliminating the need to separately provide a clip for the heat insulating member 55 to fix the heat insulating member 55. On the basis of achieving the same effect, the structure of the heating component 10 is simplified and installation is simplified.

[0050] In a possible implementation, as shown in Figure 13 , Figure 14 and Figure 15 , the second layer heating element 52 includes a plurality of intermediate area heating segments 521 located at the intermediate areas between any two adjacent second support elements 54, and the heat insulation element 55 can separate the intermediate area heating segments 521 from the first layer heating element 51. Figure 13 Figure 14 and Figure 15 , point A represents the position of the heating wire supported by the support on the second layer heating element 52, point B represents the position of the heating wire supported by the support on the first layer heating element 51, and the part of the second layer heating element 52 enclosed in the dashed box C is the intermediate area heating segment 521. The intermediate area heating segment 521 is closest to the first layer heating element 51 and the distance value is unstable, so it is necessary to isolate the intermediate area heating segment 521 from the first layer heating element 51 at the corresponding position. Figure 13 , Figure 14 and Figure 15 For the convenience of describing the two layers of heating elements, the two layers of heating wires are not connected and are end-to-end in the diagram, and in actual use, the heating wire of the first layer heating element 51 can be connected to the heating wire of the second layer heating element 52, and each layer of heating wire is not end-to-end, and each layer of heating wire can be spirally wound on the support.

[0051] In this embodiment, the heat insulation element 55 can separate the intermediate area heating segment 521 of the second layer heating element 52 from the first layer heating element 51, so that in the power-on falling state, the intermediate area heating segment 521 of the second layer heating element 52 will not contact the first layer heating element 51, avoiding the risk of short circuit caused by the intermediate area heating segment 521 of the second layer heating element 52 and the first layer heating element 51. The heat dissipation channel 551 is arranged on the heat insulation element 55, and there is a corresponding communication area on the first layer heating element 51 and the second layer heating element 52, and the heat dissipation of the communication area corresponding to the heat dissipation channel 551 will not be affected by the heat insulation element 55. The heat dissipation of the first layer heating element 51 and the second layer heating element 52 is enhanced, which can to some extent solve the phenomenon of uneven heat dissipation of the first layer heating element 51 and the second layer heating element 52, improve the heat dissipation uniformity of the first layer heating element 51 and the second layer heating element 52, and improve the user's use comfort.

[0052] In a possible implementation, as shown in Figure 10 , Figure 12As shown, the heat dissipation channel 551 is at least one hole provided on the heat insulation member 55, the first communication area 511 is an area on the first layer of heat generating member 51 corresponding to the at least one hole, and the second communication area is an area on the second layer of heat generating member 52 corresponding to the at least one hole. In this way, the heat dissipation of the areas on the first layer of heat generating member 51 and the second layer of heat generating member 52 corresponding to the at least one hole will not be affected by the heat insulation member 55, and the holes are directly provided on the heat insulation member 55, reducing the number of parts and facilitating assembly.

[0053] Further, as shown in the drawings, Figure 12 The heat insulation member 55 includes a partition area 552 and a heat dissipation area 553 (divided by a dashed line S in the figure), the partition area 552 is an area on the heat insulation member 55 corresponding to the plurality of intermediate area heat generating segments 521, and the heat dissipation area 553 is an area on the heat insulation member 55 other than the partition area 552, the at least one hole provided on the heat insulation member 55 includes at least one first hole, and the at least one first hole is provided on the heat dissipation area 553, and the partition area 552 can separate the intermediate area heat generating segment 521 from the first layer of heat generating member 51. In this embodiment, by providing holes on the heat dissipation area 553 of the heat insulation member 55, not only can the heat dissipation effect of the double-layer heat generating member be ensured, but also the partition area 552 can play a certain supporting role for the second layer of heat generating member 52, reducing the degree of deformation of the second layer of heat generating member 52 in the falling state.

[0054] Further, as shown in the drawings, Figure 12 A plurality of first holes are provided on the heat dissipation area 553, and the plurality of first holes are uniformly distributed on the heat dissipation area 553. In this way, the heat dissipation uniformity of the double-layer heat generating member can be further improved.

[0055] Further, the at least one hole further includes at least one second hole, and the at least one second hole is provided on the partition area 552, and the at least one second hole can separate the intermediate area heat generating segment 521 from the first layer of heat generating member 51. In this embodiment, further holes are provided on the partition area 552, further improving the heat dissipation effect of the double-layer heat generating member.

[0056] Specifically, when the heating wire forming the heating element is in a wave shape as shown in the drawings, Figure 14 The smallest hole diameter of the at least one second hole is smaller than the length of the valley segment 5211 of the intermediate area heat generating segment 521 close to the heat insulation member 55. In this way, the heat dissipation effect can be ensured, and short circuit can be avoided.

[0057] Further, a plurality of second holes are provided on the partition area 552, and the plurality of second holes are uniformly distributed on the partition area 552. In this way, the heat dissipation uniformity of the double-layer heat generating member can be further improved.

[0058] In another embodiment of the present application, the at least one hole provided on the heat insulation member 55 comprises at least one third hole, the at least one third hole is capable of separating the middle area heating section 521 from the first layer heating element 51, the first communication area 511 is an area on the first layer heating element 51 corresponding to the at least one third hole, and the second communication area is an area on the second layer heating element 52 corresponding to the at least one third hole. In this embodiment, the at least one third hole simultaneously plays the role of separation and heat dissipation.

[0059] Further, when the heating wire of the heating element is in a wave shape as shown in Figure 14 , the minimum diameter of the at least one third hole is smaller than the length of the valley section of the middle area heating section 521 close to the heat insulation member 55. In this way, the heat dissipation effect can be ensured, and short circuit can be avoided.

[0060] Further, the heat insulation member 55 is provided with a plurality of third holes, and the plurality of third holes are uniformly distributed on the heat insulation member 55. In this way, the heat dissipation uniformity of the double-layer heating element can be further improved, and the manufacturing of the heat insulation member 55 is facilitated.

[0061] In another embodiment of the present application, as shown in Figure 15 , the heat insulation member 55 comprises a plurality of sub-heat insulation members 555, and the communication area is an area between two adjacent sub-heat insulation members 555. In this embodiment, although a plurality of sub-heat insulation members 555 need to be manufactured, the plurality of sub-heat insulation members 555 do not need to be connected to each other, the material requirement of the heat insulation member 55 is reduced, in addition, the communication area between the first layer heating element 51 and the second layer heating element 52 is larger than the area provided with holes, and the heat dissipation uniformity of the double-layer heating element is facilitated.

[0062] Further, the second layer heating element 52 comprises a plurality of intermediate area heating segments 521 located at the intermediate area of any two adjacent second support elements 54, and each sub heat insulation element 555 is located between each intermediate area heating segment 521 and the first layer heating element 51. In the embodiment, each sub heat insulation element 555 can separate the intermediate area heating segment 521 of the second layer heating element 52 and the first layer heating element 51, so that in the power-off falling state, the intermediate area heating segment 521 of the second layer heating element 52 will not be in contact with the first layer heating element 51, avoiding the risk of short circuit caused by the contact between the intermediate area heating segment 521 of the second layer heating element 52 and the first layer heating element 51, and a heat dissipation channel 551 is formed between the adjacent sub heat insulation elements 555, and there is a communication area corresponding to the heat dissipation area 553 on the first layer heating element 51 and the second layer heating element 52, and there is no heat insulation element 55 between the first layer heating element 51 and the second layer heating element 52 at the communication area, and the heat dissipation of the communication area corresponding to the heat dissipation channel 551 will not be affected by the heat insulation element 55, which enhances the heat dissipation of the first layer heating element 51 and the second layer heating element 52, and further solves the uneven heat dissipation of the first layer heating element 51 and the second layer heating element 52 to some extent, and improves the heat dissipation uniformity of the first layer heating element 51 and the second layer heating element 52.

[0063] Further, at least one fifth hole is provided on the sub heat insulation element 555, which can separate the intermediate area heating segment 521 and the first layer heating element 51. In the embodiment, holes are further provided on the separation area 552 to further improve the heat dissipation effect of the double-layer heating element.

[0064] Specifically, when the heating wire of the heating element is in a wave shape as shown in Figure 14 , the minimum aperture of the at least one fifth hole is smaller than the length of the valley segment of the intermediate area heating segment 521 close to the heat insulation element 55. In this way, the heat dissipation effect can be ensured, and short circuit can be avoided.

[0065] As shown in Figure 10 , Figure 11 , Figure 14 , Figure 15 , a plurality of first support elements 53 are provided corresponding to a plurality of intermediate area heating segments 521. In this way, the first support element 53 also supports the second layer heating element 52, so that the second layer heating element 52 is not easy to deform. Of course, in another embodiment of the present application, as shown in Figure 13 , a plurality of first support elements 53 can be provided corresponding to a plurality of second support elements 54, respectively.

[0066] As shown in Figure 2 , Figure 10 , Figure 11As shown, the heating component 10 further includes: a support body 21; a plurality of first support members 53 are arranged on the support body 21 with the support body 21 as the center and at intervals; a plurality of second support members 54 are arranged on the support body 21 with the support body 21 as the center and at intervals. In this way, the assembly of the heating component 10 is facilitated. In another embodiment of the present application, the heating component 10 further includes: a support body 21, a plurality of first support members 53 are arranged on the support body 21 with the support body 21 as the center and at intervals, a thermal insulation member 55 is fixed on the plurality of second support members 54, and the plurality of second support members 54 are arranged on the thermal insulation member 55 with the thermal insulation member 55 as the center and at intervals.

[0067] Specifically, a plurality of first notches are provided on the first support member 53, and the heating wires on the first layer of heating elements 51 are wound around the plurality of first notches so that the first layer of heating elements 51 are spiral-shaped; Figure 10 As shown, a plurality of second notches 541 are provided on the second support member 54 , and the heating wires on the second layer of heating elements 52 are wound around the plurality of second notches 541 so that the second layer of heating elements 52 are spirally shaped, and the first notches and the second notches 541 have the same structure.

[0068] In the present application, the distance between the first wall 3101 and the second wall 3102 relative to the heating component 10 is set so that the airflow sent into the air supply channel 1001 can change its flow direction according to the difference between the first wall 3101 and the second wall 3102. Because the first wall 3101 is closer to the air outlet of the air supply channel 1001 than the second wall 3102, the connection between the two is actually the most important area for changing the wind direction. The airflow entering through the air inlet 315 of the air supply channel 1001 partially flows along the position close to the first wall 3101 to the junction of the first wall 3101 and the second wall 3102. Due to the limitation of the side wall at the junction, the direction changes, so that it flows along the second wall 3102 and flows to the air outlet through the heating component 10. At the same time, because the change in the direction of the air flow will bring about a loss of wind force, the second wall 3102 is arranged closer to the heating component 10 than the first wall 3101, so that the flow cross-section between the second wall 3102 and the heating component 10 is reduced, thereby increasing the air flow rate to meet the requirements of blowing out from the air outlet as efficiently as possible, and at the same time, by changing the flow direction, the wind force is prevented from flowing toward one side of the circuit cavity 3001.

[0069] That is, through the above arrangement, on the basis of meeting the complete isolation of the circuit cavity 3001 relative to the heating cavity 3002, the wire control assembly 32 installed in the circuit cavity 3001 is actually isolated relative to the air supply channel 1001 in communication with the heating cavity 3002, so that the hot air flow passing through the heating cavity 3002 does not affect the wire control assembly 32 in the circuit cavity 3001 (for example, causing the wire control assembly 32 to overheat or other thermal effects), and the wire control assembly 32 also does not affect the hot air flow in the heating cavity 3002 (for example, does not cause the flow of the hot air flow to be turbulent). At the same time, it is because the first wall 3101 and the second wall 3102 change the wind direction and adjust the flow rate, reducing the possibility of the hot air flow flowing towards the circuit cavity 3001 side, thereby improving the drying effect while further reducing the influence of the wire control assembly 32 on the hot air flow in the air supply channel 1001.

[0070] In some embodiments, a wire passing hole 313 is configured at a position corresponding to the first wall 3101 on the circuit board frame 31, and a first sealing member 91 is arranged at the wire passing hole 313, and the wires of the heating assembly 10 are connected to the wire control assembly 32 through the first sealing member 91. Specifically, the wires on the heating assembly 10 in the heating cavity 3002 pass through the wire passing hole 313 on the circuit board frame 31 and are connected to the wire control assembly 32. Moreover, it is because of the arrangement of the first sealing member 91 at the wire passing hole 313 that the sealing of the wire routing is ensured, further enhancing the sealing between the heating cavity 3002 and the circuit cavity 3001. At the same time, the wire passing hole 313 is arranged at the first wall 3101 on the circuit board frame 31, reducing the interference between the wires and the electrical elements 323 in the circuit board 325. Of course, such an arrangement also facilitates the structure of the wire passing hole 313 itself and the installation of the first sealing member 91 at the wire passing hole 313. In a specific embodiment, the first sealing member 91 is a wire plug, which has a wire passing hole 9211 for the wires to pass through. The outer wall of the wire plug is pressed against the hole wall of the wire passing hole 313, and the hole wall of the wire passing hole 9211 is pressed against the outer wall of the wires, thereby achieving sealed connection at the wire routing and reducing the leakage of the air volume in the air supply channel 1001. The wire plug is made of rubber or silicone material.

[0071] As shown in Figure 3 and Figure 5 In some embodiments, the circuit board frame 31 is configured with a mounting hole 316 extending through the thickness direction thereof. The wire control assembly 32 includes a circuit board 325 and a heat sink 324 mounted on the side of the circuit board 325 facing the heating cavity 3002, and the heat sink 324 protrudes from the circuit board 325 and is partially embedded in the mounting hole 316.

[0072] Specifically, the installation hole 316 is arranged to facilitate the heat dissipation member 324 to pass through the circuit board frame 31 to contact the cold air flow in the air supply channel 1001, so as to transfer the heat generated by the circuit board 325 during operation to the air supply channel 1001, and on the basis of meeting the temperature rise of the cold air flow in the air supply channel 1001, the heat dissipation of the circuit board 325 is realized. Moreover, the arrangement of the heat dissipation member 324 only allows the heat to flow to the side with lower temperature, i.e. one-way flow heat dissipation, so as to meet the requirement that only the heat of the circuit board 325 is transferred to the cold air flow in the air supply channel 1001 through the heat dissipation member 324. In a specific embodiment, the sealed connection of the heat dissipation member 324 relative to the circuit board frame 31 improves the sealing of the air supply channel 1001, reduces the leakage amount of the air flow towards the circuit cavity 3001, and improves the isolation of the line control assembly 32 relative to the air supply channel 1001. In another specific embodiment, the heat dissipation member 324 is in the form of an arc-shaped heat dissipation fin extending circumferentially along the entire machine body 1000. Such an arrangement improves the contact area between the heat dissipation member 324 and the cold air flow in the air supply channel 1001, thereby improving the heat dissipation effect. In still another specific embodiment, the circuit board 325 is connected with a screw, and the circuit board frame 31 is provided with a screw hole, and the screw is screwed into the screw hole to realize the installation of the circuit board 325 relative to the circuit board frame 31.

[0073] As shown in Figure 3 and Figure 5 , in some embodiments, the side of the heat dissipation member 324 facing the heating cavity 3002 is flush with the side of the installation hole 316 facing the heating cavity 3002. Such an arrangement facilitates the air flow entering the air supply channel 1001 to more easily contact the heat dissipation surface of the heat dissipation member 324, thereby removing the heat of the heat dissipation member 324 and meeting the heat dissipation requirement. In other embodiments, the depth of the heat dissipation member 324 extending into the installation hole 316 is less than the depth of the installation hole 316 itself, i.e. the installation of the heat dissipation member 324 relative to the installation hole 316 has an installation allowance in the depth direction, and the installation allowance is between 0.8mm-2mm, for example, it can be 0.8mm, 1.2mm, 1.8mm, 2mm, etc. The arrangement of the installation allowance facilitates the assembly of heat dissipation members 324 with different thicknesses.

[0074] As shown in Figure 3 and Figure 7As shown in some embodiments, the circuit board 325 comprises a first layer board 321 and a second layer board 322 stacked along the axial direction of the whole machine body 1000, and the electrical components 323 are arranged on the first layer board 321 and the second layer board 322, and the first layer board 321 and the second layer board 322 have a height difference along the axial direction of the whole machine body 1000, and the heat dissipation member 324 is arranged on one of the first layer board 321 and the second layer board 322 close to the side of the circuit board frame 31. That is, the circuit board 325 adopts a double-layer board structure, and the electrical components 323 can be distributed on the first layer board 321 and the second layer board 322 according to design requirements or the convenience of structural layout, thereby simplifying the overall design difficulty of the circuit board 325. In particular, compared with a single-layer circuit board 325, the arrangement of the double-layer board can increase the installation space of the electrical components 323 and reduce the load of the single-layer board. At the same time, because the first layer board 321 and the second layer board 322 are stacked along the axial direction of the whole machine body 1000, the diameter of the circuit board 325 is effectively reduced, thereby reducing the radial size of the whole machine body 1000. In addition, the arrangement of the height difference between the two layer boards, that is, there is a gap between the first layer board 321 and the second layer board 322, facilitates the installation of the electrical components 323, thereby reducing the interference between the electrical components 323 on each layer board. Moreover, the arrangement of the first layer board 321 and the second layer board 322 relative to the heat dissipation member 324 not only meets the installation of the heat dissipation member 324 relative to the circuit board 325, but also ensures that the heat dissipation member 324 can be in contact with the cold air flow in the air supply channel 1001, thereby achieving heat dissipation.

[0075] As shown in some embodiments, Figure 3 and Figure 7 In a specific embodiment, the second layer board 322 is located close to the side of the circuit board frame 31, and the radial size of the second layer board 322 along the whole machine body 1000 is smaller than the radial size of the first layer board 321 along the whole machine body 1000. The heat dissipation member 324 is arranged on the second layer board 322. In other words, the separate arrangement of the second layer board 322 and the second layer board 322 not only facilitates the assembly planning of the electrical components 323, but also allows the more important components in the electrical components 323 to be arranged on the first layer board 321, thereby improving the protection. In a specific embodiment, the first layer board 321 adopts a circular plate to adapt to the cylindrical structure of the whole machine body 1000 as much as possible. The second layer board 322 adopts a special-shaped plate to adapt to the electrical components 323 and the circuit board frame 31, thereby improving the assembly convenience. The first layer board 321 and the second layer board 322 are fixed by a connecting column or directly fixed by screws to form an integral structure. Then, the relative arrangement of the circuit board frame 31 can be completed.

[0076] As shown in some embodiments, Figure 3 and Figure 6As shown in the figure, in one embodiment, the surface of the first wall 3101 is flat, and the surface of the second wall 3102 is curved. Such an arrangement not only allows the air flow to enter the air supply channel 1001 smoothly, but also reduces the wind loss. Moreover, the curved surface makes the contact with the air flow more smooth, so as to facilitate the change of the air flow direction, and further reduce the wind loss. In other embodiments, the first wall 3101 and the second wall 3102 are both curved, or the first wall 3101 is curved and the second wall 3102 is flat. Meanwhile, in another embodiment, the connection between the first wall 3101 and the second wall 3102 is transitioned by a curved surface. The transition direction of the curved surface can weaken the stress concentration phenomenon at the connection, and at the same time improve the smoothness of the air flow.

[0077] As shown in the figure, Figure 3 and Figure 6 In some embodiments, the projection area of the second wall 3102 on the plane of the air outlet 201 side accounts for 45%-49% of the projection area of the circuit board frame 31 on the plane of the air outlet 201 side. Such an arrangement makes the area of the second wall 3102 smaller than that of the first wall 3101, so as to prevent the air duct at the second wall 3102 in the air supply channel 1001 from being too small to cause the air flow rate to be too large, thereby improving the protection of the heat generating component 10. Of course, the limitation of the area of the second wall 3102 facilitates the arrangement of the threading hole 313 relative to the circuit board frame 31. In one embodiment, the above projection area accounts for 45%, 46.5%, 48.2%, 49%, etc. In another embodiment, the second wall 3102 is located at the edge of the threading hole 313 by about 2mm-3mm, for example, 2mm, 2.5mm or 3mm, etc.

[0078] As shown in the figure, Figure 3 and Figure 6 In some embodiments, the maximum distance difference between the second wall 3102 and the first wall 3101 relative to the air outlet 201 is between 0.6cm and 1.3cm. Here, the difference refers to the spacing of the first wall 3101 and the second wall 3102 in the axial direction of the whole machine body 1000. Specifically, as mentioned above, the second wall 3102 is closer to the side of the air outlet 201 facing the air supply channel 1001 than the first wall 3101, and the spacing between the first wall 3101 and the second wall 3102 actually affects the length of the air duct after the cross-sectional area is changed. The purpose is to achieve the change of the air direction while reducing the wind loss as much as possible, and to increase the wind speed. In one embodiment, the above axial difference is 0.6cm, 0.86cm, 1cm or 1.3cm.

[0079] As shown in the figure, Figure 3 and Figure 6As shown, in some embodiments, the first wall 3101 and the second wall 3102 are connected in such a way that the flow direction of at least part of the air flow is changed by 60-90 degrees. Specifically, as mentioned above, the air flow flowing along the side close to the first wall 3101 will be changed in direction by the side wall at the joint of the first wall 3101 and the second wall 3102, and thus the limitation of the change angle of the air flow is actually the limitation of the angle of the side wall at the joint of the first wall 3101 and the second wall 3102, i.e. the angle of the side wall at the joint compared to the first wall 3101, and further the angle setting relationship of the first wall 3101 compared to the side of the air outlet. For example, when the air flow is changed by 90 degrees, the side wall at the joint is perpendicular to the first wall 3101. At this time, the first wall 3101 is parallel to the side of the air outlet, and thus only when the air flow is changed by 90 degrees can it flow smoothly to the air outlet. When the air flow is changed by 60 degrees, the first wall 3101 has a 60-degree included angle position relationship with the side of the air outlet. Of course, the change angle of the flow direction mentioned above can also be 75 degrees, 85 degrees, etc. In fact, the greater the change of the flow direction, the more convenient it is to set the position of the first wall 3101 relative to the air outlet for the design of the circuit board frame 31, and thus the hair care device is more convenient to design and manufacture.

[0080] As shown in FIG. 3B, in some embodiments, the second wall 3102 is connected to the first wall 3101 in such a way that the flow direction of at least part of the air flow is changed by 45-90 degrees. Figure 3 and Figure 6 As shown, in some embodiments, the second wall 3102 is connected to the first wall 3101 in such a way that the flow direction of at least part of the air flow is changed by 45-90 degrees. Specifically, the curved structure of the second wall 3102 can adjust the direction of the air flow flowing along the side close to the second wall 3102 to the side of the air outlet. Thus, the change of the second wall 3102 relative to the air outlet is actually the position setting of the second wall 3102 relative to the air outlet. Of course, the greater the change angle of the flow direction of the second wall 3102, the more convenient it is to design the entire circuit board frame 31. In a specific embodiment, the change angle of the flow direction of the second wall 3102 is 45 degrees, 80 degrees or 90 degrees.

[0081] As shown in FIG. 3B, in some embodiments, the second wall 3102 is connected to the first wall 3101 in such a way that the flow direction of at least part of the air flow is changed by 45-90 degrees. Figures 3-7As shown, in some embodiments, the circuit board frame 31 is configured with a recessed space 3103 at the position of the second wall 3102 and on the side facing the circuit cavity 3001, for accommodating part of the wire control assembly 32. A wire passing hole 313 is located on the circuit board frame 31 at the position corresponding to the first wall 3101. Specifically, the circuit board frame 31 is configured with an open cylinder cavity on the side facing the heating cavity 3002, which surrounds part of the air supply passage 1001, and the first wall 3101, the second wall 3102 and the recessed space 3103 are all arranged on the bottom of the cylinder cavity. The arrangement of the recessed space 3103 on the side of the circuit board frame 31 facing the circuit cavity 3001 makes it possible to arrange part of the elements on the circuit board 325 along the axial dimension of the whole machine body 1000 in the recessed space 3103 in terms of the side of the circuit board 325, improving the adaptability of the arrangement of the circuit board 325. The wire passing hole 313 is arranged on the first wall 3101 on the bottom of the cylinder cavity and penetrates through the first wall 3101, so as to facilitate the connection of the wire with the wire control assembly 32 in the isolated circuit cavity 3001. Of course, such an arrangement also facilitates the structure of the wire passing hole 313 itself and the installation of the first sealing member 91 at the wire passing hole 313. In a specific embodiment, the size of the recessed space 3103 is related to the axial difference between the second wall 3102 and the first wall 3101, so as to guide the air duct while maximizing the installation of the electrical components 323.

[0082] As shown, Figure 2 In some embodiments, the whole machine body 1000 further comprises a touch assembly 2001 arranged on the side of the wire control assembly 32 away from the air outlet 201, the circuit cavity 3001 is arranged between the circuit board frame 31 and the touch assembly 2001, and the touch assembly 2001 is electrically connected with the wire control assembly 32. Specifically, the touch assembly 2001 is arranged for user control to control the hair care device, such as controlling the power size of the hair care device. The touch assembly 2001 is arranged on the side away from the air outlet, reducing the interference with the air flow. In fact, when the touch assembly 2001 is working, it will also generate weak heat due to the existence of the touch circuit in the touch assembly 2001. When the circuit cavity 3001 is arranged between the touch assembly 2001 and the circuit board frame 31, the air supply passage 1001 is isolated from the touch assembly 2001 on the basis of satisfying the isolation of the wire control assembly 32 and the air supply passage 1001.

[0083] As shown, Figure 2As shown in the drawings, in one specific embodiment, the touch assembly 2001 is configured with a touch housing 2005, which is buckled on the end of the whole machine shell 2000 away from the air outlet 201, and the touch housing 2005 is sealingly connected with the whole machine shell 2000. Specifically, the whole machine shell 2000 here is wrapped outside the whole machine body 1000, playing a protective role for the whole machine body 1000. The assembly of the touch housing 2005 and the whole machine shell 2000 improves the compactness of the overall installation structure of the whole machine body 1000. At the same time, the sealing connection of the touch housing 2005 and the whole machine shell 2000 meets the sealing requirements of the entire hair care device itself, and also ensures that the circuit cavity 3001 is in a sealed state to prevent impurities in the external environment from entering the circuit cavity 3001 and damaging the electrical components 323. Among them, an annular sealing ring is arranged between the touch housing 2005 and the whole machine shell 2000 to achieve sealing connection.

[0084] As shown in the drawings, Figure 2 and Figure 3 In some embodiments, the whole machine shell 2000 and the whole machine body 1000 have a heat insulation cavity 3003 around the periphery of the whole machine body 1000, and the heat insulation cavity 3003 at least partially overlaps the heating cavity 3002 along the axial direction of the whole machine body 1000. Specifically, through the arrangement of the heat insulation cavity 3003, the whole machine shell 2000 and the whole machine body 1000 do not directly contact and thus do not directly conduct heat. At the same time, because the main heat source of the hair care device comes from the heating assembly 10, the relative position relationship between the heat insulation cavity 3003 and the heating assembly 10 makes the heat insulation cavity 3003 be arranged around the periphery of the heating assembly 10 to directly act on the heat generated by the heating assembly 10 in the most direct way, thereby effectively reducing the heat loss in the air supply channel 1001, so that the heat in the air supply channel 1001 is used as much as possible or almost completely for actual hair drying operation, thereby improving the actual use of effective heat of the hair care device and improving the hair drying effect. Moreover, it is because of the arrangement of the heat insulation cavity 3003 that the heat generated by the heating assembly 10 does not directly conduct to the whole machine shell 2000, thereby reducing the risk of overheating of the whole machine shell 2000 and improving the safety of use.

[0085] As shown in the drawings, Figure 2 and Figure 3 In one specific embodiment, the heat insulation cavity 3003 is arranged in an annular shape along the axial direction of the whole machine body 1000, and the heat insulation cavity 3003 is wrapped outside the heating cavity 3002. Such an arrangement makes the heating assembly 10 have heat insulation cavities 3003 distributed along the circumferential direction of the heating assembly 10, thereby improving the heat insulation area and strengthening the effect of preventing heat loss. In other embodiments, the heat insulation cavity 3003 is arranged in an arc shape, and there are a plurality of heat insulation cavities 3003 arranged at intervals around the periphery of the heating assembly 10.

[0086] As shown in the drawings, Figure 2and Figure 3 As shown, in some embodiments, the radial width of the heat-insulating cavity 3003 along the entire body 1000 is between 0.5 mm and 2 mm. By limiting the radial width of the heat-insulating cavity 3003, a safe thermal insulation distance is ensured between the entire body 1000 and the entire housing 2000. This reduces heat loss while ensuring that the hair care device has a relatively small radial dimension along the entire body 1000, thereby improving the stability of the assembly of the entire body 1000 relative to the entire housing 2000. The radial width of the heat-insulating cavity 3003 can be 0.5 mm, 0.7 mm, 1 mm, 1.5 mm, or 2 mm.

[0087] like Figure 2 and Figure 3 As shown, in some embodiments, the entire housing 1000 further includes a cylindrical body 20 extending along the axis of the air supply channel 1001. The side of the cylindrical body 20 facing away from the air outlet 201 is sealedly connected to the circuit board frame 31. The cylindrical body 20 and the circuit board frame 31 together enclose the air supply channel 1001. The air outlet 201 is provided on the side of the cylindrical body 20 facing away from the circuit board frame 31, and the air inlet 315 is provided on the side of the circuit board frame 31 near the first wall 3101. The thermal insulation cavity 3003 is provided at least between the cylindrical body 20 and the entire housing 2000.

[0088] Specifically, the heating chamber 3002 is the barrel 20's cavity, within which the heating element 10 is mounted. The barrel 20 and the circuit board frame 31 together enclose an air supply channel 1001, facilitating the passage of air heated by the heating element 10 and then discharged through the air outlet 201. Furthermore, the sealed connection between the barrel 20 and the circuit board frame 31 enhances the sealing of the air supply channel 1001 and reduces air leakage within the channel. When the insulating chamber 3003 is positioned between the barrel 20 and the overall housing 2000, it surrounds the heating chamber 3002, thereby reducing heat loss within the heating chamber 3002. Furthermore, when the insulating chamber 3003 is positioned around the barrel 20, the circuit board frame 31, and the overall housing 2000, it not only reduces heat loss within the heating chamber 3002 but also reduces air leakage within the air supply channel 1001.

[0089] like Figure 2 and Figure 3As shown, in some embodiments, the heat insulation cavity 3003 is in communication with the circuit cavity 3001 described above. At this time, a gap is reserved between the whole machine shell 2000 and the circuit board frame 31, which also serves as a part of the heat insulation cavity 3003, so that the heat insulation cavity 3003 surrounds the peripheral side of the cylinder body 20 and the circuit board frame 31. Among them, the gap between the whole machine shell 2000 and the circuit board frame 31 is smaller than the gap between the whole machine shell 2000 and the cylinder body 20. In other embodiments, the heat insulation cavity 3003 is not in communication with the circuit cavity 3001 described above, and the peripheral side of the whole machine shell 2000 and the circuit board frame 31 does not have a gap.

[0090] As Figure 8 , Figure 2 and Figure 3As shown, in some embodiments, the barrel 20 comprises a support body 21 and an outer barrel 22 sleeved outside the support body 21, the heating assembly 10 is arranged between the support body 21 and the outer barrel 22, and the end of the outer barrel 22 away from the air outlet 201 is sealingly connected to the circuit board frame 31 through the second sealing member 92. The heat insulation cavity 3003 is arranged between the outer barrel 22 and the whole machine shell 2000, and at least the inner wall of the outer barrel 22 towards the heating assembly 10 is provided with a heat insulation sheet 23. Specifically, the heating cavity 3002 is located between the outer wall of the support body 21 and the inner wall of the outer barrel 22, and the heating assembly 10 is installed in the heating cavity 3002, so as to realize the support of the heating assembly 10 through the common constraint of the support body 21 and the outer barrel 22. The outer barrel 22 is not only used for cooperation with the circuit board frame 31, but also used for protection of the heating assembly 10 and the support body 21. At the same time, the outer barrel 22 can be clamped and matched with the whole machine shell 2000 sleeved outside. For example, a plurality of circumferentially spaced limiting ribs are arranged on the outer wall of the whole machine shell 2000, and the limiting ribs are clamped on the outer barrel 22. Of course, the fixing of the outer barrel 22 and the whole machine shell 2000 can be realized by the cooperation of the clamping arms and the clamping grooves. Moreover, the circuit board frame 31 can be axially fixed between the arc-shaped structure outside itself and the whole machine shell 2000, and axially fixed with the touch shell 2005 installed on the rear side, so as to realize the assembly of the whole hair care device head 1 and improve the compactness. The arrangement of the heat insulation sheet 23 on the outer barrel 22 reduces the heat of the heating assembly 10 directly transmitted to the outer barrel 22. In other embodiments, the heat insulation sheet 23 is arranged around the outer wall of the support body 21, so as to reduce the heat of the heating assembly 10 transmitted to the support body 21. At the same time, the arrangement of the second sealing member 92 between the outer barrel 22 and the circuit board frame 31 improves the sealing performance of the air supply channel 1001 and reduces the air leakage. In a specific embodiment, the heat insulation sheet 23 is a mica sheet. In another specific embodiment, the heat insulation sheet 23 is arranged around the outer barrel 22 along the axial direction of the outer barrel 22. That is, the heat insulation sheet 23 is arranged around the outer barrel 22 along the circumferential direction of the outer barrel 22, so that the heating assembly 10 has a heat insulation effect with the outer barrel 22 at each position along the circumferential direction, and the effect of preventing heat loss is strengthened.

[0091] As Figure 5 , Figure 7 , Figure 8 , Figure 2 and Figure 3As shown, in still another specific embodiment, the second sealing member 92 is a sealing ring. The outer cylinder 22 is provided with a slot 221 at one end away from the air outlet 201 of the air supply passage 1001, and the second sealing member 92 is accommodated in the slot 221. The one end of the circuit board frame 31 towards the air outlet 201 is provided with a plug 311, which is plugged into the slot 221 and pressed against the second sealing member 92. Further, the outer wall of the outer cylinder 22 is provided with a clamping arm 222 extending axially, which is configured with a clamping hole 2221. Correspondingly, the outer wall of the circuit board frame 31 is provided with a clamping protrusion 312 protruding radially outward, which can be clamped into the clamping hole 2221, further improving the connection reliability of the outer cylinder 22 and the circuit board frame 31. The number of clamping arms 222 corresponds to the number of clamping protrusions 312, improving the stress balance.

[0092] As shown in some embodiments, Figure 2 and Figure 3 As shown, in some embodiments, the hair care device further comprises a handle 40 connected to the main body 1000 and a switch assembly 42 mounted on the handle 40, the handle 40 is configured with an air inlet passage 41 communicating with the air inlet 315 of the air supply passage 1001 and a mounting cavity 3004 isolated from the air inlet passage 41, the switch assembly 42 is at least partially assembled in the mounting cavity 3004, and the switch assembly 42 is electrically connected with the wire control assembly 32. The handle 40 is sealingly connected with the main body 1000.

[0093] Specifically, the handle 40 is provided to facilitate the user to hold it for drying operation. The switch assembly 42 is provided to facilitate the user to control the start and stop of the hair care device, and is configured with the touch assembly 2001 to adjust the wind power after starting and the use state of hot and cold air. The handle 40 is provided with an air inlet passage 41, and the air inlet passage 41 has an air inlet 44 provided on the handle 40. The handle 40 is provided with a motor 43, and the motor 43 is electrically connected with the circuit board 325 through wires. The switch assembly 42 controls the motor 43 to drive through the circuit board 325. The airflow in the external environment enters the air inlet 44 on the handle 40 under the suction power of the hair care device, is transported to the air supply passage 1001 on the main body 1000 along the air inlet passage 41, and is then sent out from the air outlet 201 of the air supply passage 1001 for drying. Of course, in use, the heating assembly 10 does not necessarily have to work, and only the airflow in the external environment can be converted into high-speed airflow through the air supply passage 1001. The use of the heating assembly 10 can be controlled by the touch assembly 2001. At the position on the handle 40 for mounting the switch assembly 42, the button part on the switch assembly 42 protrudes out of the mounting cavity 3004 to facilitate the user to operate. By providing the mounting cavity 3004 isolated from the air inlet passage 41, the circuit in the switch assembly 42 is assembled while the airflow in the air inlet passage 41 is isolated, reducing the mutual influence between them.

[0094] As shown in Figure 5 , Figure 2 and Figure 3 , in some embodiments, the handle 40 comprises an air duct shell 2006 and a handle shell 2003 covering the outside of the air duct shell 2006, and a mounting cavity 3004 is formed between the handle shell 2003 and the air duct shell 2006. Specifically, the mounting cavity 3004 can be formed at the position where the switch assembly 42 is mounted on the air duct shell 2006, so that the air duct shell 2006 is inwardly recessed to form a mounting cavity 3004 between the inner wall of the handle shell 2003 and the outer wall of the air duct shell 2006, thereby achieving the assembly of the switch assembly 42. Through such arrangement, the diameter of the handle 40 can be reduced, which is more convenient for users to hold. Among them, the mounting cavity 3004 is arranged as much as possible at the position where the handle 40 is relatively large in the direction of the heat generating assembly 10 or is affected by heat. In a specific embodiment, the mounting cavity 3004 is in communication with the above-mentioned circuit cavity 3001, and when the circuit cavity 3001 is in communication with the heat insulation cavity 3003, the mounting cavity 3004, the circuit cavity 3001 and the heat insulation cavity 3003 are in communication in sequence, which can not only meet the above-mentioned isolation of the air duct and the circuit, but also can reduce the leakage of heat and air through the three cavities surrounding the periphery. It should be noted that there is no dry hair and styling wind in the above-mentioned three cavities (mounting cavity 3004, heat insulation cavity 3003 and circuit cavity 3001).

[0095] As shown in Figure 5 , Figures 1-3 and Figure 2 , in some embodiments, the handle shell 2003 cooperates with the whole machine shell 2000. Specifically, a radially extending extension shell segment 2004 is arranged at the air inlet 315 of the air supply channel 1001 on the whole machine shell 2000, and the front end of the handle 40 extends into the extension shell segment 2004. The handle shell 2003 and the air duct shell 2006 have a mounting gap, and the extension shell segment 2004 is inserted into the mounting gap and can be fastened by screws. In summary, it can be understood that the above-mentioned whole machine body 1000, the circuit board rack 31, the motor control assembly 32, the heat generating assembly 10 mounted in the whole machine body 1000, and the whole machine shell 2000 covering the outside of the whole machine body 1000 together constitute the head 1 of the hair care device. At the same time, the above-mentioned handle 40, switch assembly 42, motor 43 and motor power line connected to the tail side of the handle 40 etc. together constitute the tail 2 of the hair care device. It should be noted in advance that, as shown in Figure 3 , in the present embodiment, the axial direction of the barrel 20 and the axial direction of the whole machine body 1000, the radial direction of the barrel 20 is the radial direction of the whole machine body 1000, and the handle 40 extends along the radial direction of the barrel 20. Thus, a hair care device in the shape of approximately "7" is formed.

[0096] AsFigure 7 、 ​ and ​ As shown, in some embodiments, a third seal 93 is pressed against the air inlet 315. The third seal 93 is used to seal the air duct housing 2006 to the circuit board frame 31. Specifically, the provision of the third seal 93 improves the sealing performance at the junction of the air supply channel 1001 and the air inlet channel 41, reducing air leakage. The third seal 93 is a special-shaped sealing ring, the purpose of which is to adapt to the air inlet 315 on the circuit board frame 31. The third seal 93 is bonded to the edge of the air inlet 315 on the circuit board frame 31. The front end of the air duct housing 2006 in the handle 40 is pressed against the third seal 93 and fixed to the circuit board frame 31. At the same time, the handle housing 2003 is fixedly connected to the entire housing 2000, thereby achieving a sealed connection.

[0097] Obviously, the above embodiments of the present application are merely examples for the purpose of clearly illustrating the present application, and are not intended to limit the embodiments of the present application. A person skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present application. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the claims of the present application.

Claims

1. A hair care device, comprising a main body, a heating component, an air inlet and an air outlet, characterized in that: The whole body includes a heating chamber, and the heating component is arranged in the heating chamber. When the hair care device is in operation, the airflow entering from the air inlet flows to the air outlet through the heating component; the heating component includes: The first layer of heating element; The second layer of heating elements is sleeved on the outer side of the first layer of heating elements; A plurality of first supporting members, used for supporting the first layer of heating elements; A plurality of second supporting members, used for supporting the second layer of heating elements; The heat insulating member is arranged between the first layer of heating elements and the second layer of heating elements. The heat insulating member is provided with a heat dissipation channel. The first layer of heating elements and the second layer of heating elements include a first connecting area and a second connecting area corresponding to the heat dissipation channel.

2. The hair care device according to claim 1, characterized in that The second layer of heating elements includes a plurality of intermediate region heating segments located in the intermediate regions of any two adjacent second support members; the thermal insulation member can separate the intermediate region heating segments from the first layer of heating elements.

3. The hair care device according to claim 2, characterized in that The heat dissipation channel is at least one hole set on the thermal insulation component, the first connecting area is the area on the first layer of heating component corresponding to the at least one hole, and the second connecting area is the area on the second layer of heating component corresponding to the at least one hole.

4. The hair care device according to claim 3, characterized in that The thermal insulation component includes a separation area and a heat dissipation area. The separation area is the area on the thermal insulation component corresponding to the multiple intermediate area heating segments. The heat dissipation area is the area on the thermal insulation component other than the separation area. The at least one hole includes at least one first hole. The at least one first hole is set on the heat dissipation area. The separation area can separate the intermediate area heating segment and the first layer of heating components.

5. The hair care device according to claim 4, characterized in that The at least one hole further includes at least one second hole, and the at least one second hole is provided on the separation area. The at least one second hole can separate the middle area heating section from the first layer of heating elements.

6. The hair care device according to claim 5, characterized in that When the heating wire forming the second layer of heating elements is wavy, the minimum aperture of the at least one second hole is smaller than the length of the trough section of the heating section in the middle area close to the thermal insulation element.

7. The hair care device according to claim 5, characterized in that A plurality of first holes are provided on the heat dissipation area, and the plurality of first holes are evenly distributed in the heat dissipation area; a plurality of second holes are provided on the separation area, and the plurality of second holes are evenly distributed in the separation area.

8. The hair care device according to claim 3, characterized in that The at least one hole includes at least one third hole, and the at least one third hole can separate the middle area heating section from the first layer of heating elements. The first connecting area is the area on the first layer of heating elements corresponding to the at least one third hole, and the second connecting area is the area on the second layer of heating elements corresponding to the at least one third hole.

9. The hair care device according to claim 8, characterized in that When the heating wire forming the second layer of heating elements is wavy, the minimum aperture of the at least one third hole is smaller than the length of the trough section of the heating section in the middle area close to the thermal insulation element.

10. The hair care device according to claim 8, characterized in that The thermal insulation member is provided with a plurality of third holes, and the plurality of third holes are evenly distributed on the thermal insulation member.

11. The hair care device according to claim 10, characterized in that The thermal insulation element includes: a plurality of sub-thermal insulation elements, and the heat dissipation channel includes an area between two adjacent sub-thermal insulation elements.

12. The hair care device according to claim 11, characterized in that The second layer of heating elements includes a plurality of intermediate region heating segments located in the intermediate regions of any two adjacent second support members; each sub-insulation member is located between each intermediate region heating segment and the first layer of heating elements.

13. The hair care device according to claim 2, characterized in that The plurality of first support members are arranged corresponding to the plurality of middle-region heating sections.

14. The hair care device according to claim 1, characterized in that The heating component further includes: a supporting body; the plurality of first supporting members are arranged on the supporting body at intervals with the supporting body as the center; and the plurality of second supporting members are arranged on the supporting body at intervals with the supporting body as the center.

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