CN116098361A

CN116098361A - Hair care device

Info

Publication number: CN116098361A
Application number: CN202111321561.8A
Authority: CN
Inventors: 季婷; 马加华; 吴宇
Original assignee: Kingclean Electric Co Ltd; Lexy Electric Green Energy Technology Suzhou Co Ltd
Current assignee: Kingclean Electric Co Ltd; Lexy Electric Green Energy Technology Suzhou Co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2023-05-12
Also published as: WO2023082758A1

Abstract

The invention belongs to the technical field of small household appliances, and discloses a hair care device, which comprises: the heating component comprises a first layer heating piece, a second layer heating piece and a heat insulating piece, wherein a heat radiating channel is arranged on the heat insulating piece between the first layer heating piece and the second layer heating piece, a communication area corresponding to the heat radiating area exists on the first layer heating piece and the second layer heating piece, the heat radiating of the communication area corresponding to the heat radiating channel is not affected by the heat insulating piece, the heat radiation of the first layer heating piece and the second layer heating piece is enhanced, and the phenomenon that the heat radiation is uneven is solved to a certain extent for the first layer heating piece and the second layer heating piece, and the heat radiation uniformity of the first layer heating piece and the second layer heating piece can be improved.

Description

Hair care device

Technical Field

The present application relates to the field of personal care tools, and more particularly to a hair care appliance.

Background

Hair dryers are widely used in everyday life because of their ability to dry or style hair. In order to achieve rapid drying of hair, a heating wire is usually provided in existing blowers. In order to solve the demands on heating efficiency, the whole size of the blower, and the like, a double-layer heating wire is arranged. In the double-layer heating wires, the heating wires positioned in the middle part between the two supporting pieces in the outer-layer heating wires are far away from the supporting pieces on the two sides, so that the supporting force is insufficient, and the risk of short circuit caused by wire overlapping with the inner-layer heating wires when the electric power is in a falling state exists. In order to avoid the wire overlapping of the inner heating wire and the outer heating wire, a mica sheet is arranged between the inner heating wire and the outer heating wire, but after the mica sheet is added, the heat dissipation of the inner heating wire and the outer heating wire is uneven.

Disclosure of Invention

Accordingly, it is necessary to provide a hair care device which can prevent the inner heating wire from overlapping the outer heating wire in a state where the hair care device is dropped by energization, and can improve the phenomenon that the heat dissipation of the inner heating wire and the heat dissipation of the outer heating wire are uneven.

The application provides a hair care device, which comprises a complete machine body, a heating component, an air inlet and an air outlet, wherein the complete machine body comprises a heating cavity, the heating component is arranged in the heating cavity, and when the hair care device operates, air flow entering from the air inlet flows to the air outlet through the heating component; the heat generating component includes:

a first layer heating element;

the second layer heating piece is sleeved outside the first layer heating piece;

a plurality of first supporting members for supporting the first-layer heat generating member;

a plurality of second supporting members for supporting the second-layer heat generating member;

the heat insulation piece is arranged between the first layer heating piece and the second layer heating piece, a heat dissipation channel is arranged on the heat insulation piece, and the first layer heating piece and the second layer heating piece comprise a first communication area and a second communication area which correspond to the heat dissipation channel.

In one embodiment, the second layer heat generating element comprises a plurality of intermediate region heat generating segments located at intermediate regions of any adjacent two of the second support elements; the heat insulating member is capable of separating the intermediate region heating section from the first layer heating member.

In one embodiment, the heat dissipation channel is at least one hole formed in the heat insulating member, the first communication area is an area corresponding to the at least one hole on the first layer heating member, and the second communication area is an area corresponding to the at least one hole on the second layer heating member.

In one embodiment, the heat insulating member includes a separation region and a heat dissipation region, the separation region is a region of the heat insulating member corresponding to the plurality of middle region heating sections, the heat dissipation region is a region of the heat insulating member other than the separation region, the at least one hole includes at least one first hole, the heat dissipation region is provided with the at least one first hole, and the separation region can separate the middle region heating sections from the first layer heating member.

In one embodiment, the at least one hole further comprises at least one second hole, and the at least one second hole is disposed on the separation area, and the at least one second hole can separate the middle area heating section from the first layer heating element.

In one embodiment, when the heating wire forming the second heating element is wavy, the minimum aperture of the at least one second hole is smaller than the length of the trough section of the intermediate region heating section, which is adjacent to the heat insulating member.

In one embodiment, the heat dissipation area is provided with a plurality of first holes, and the plurality of first holes are uniformly distributed in the heat dissipation area; the separation area is provided with a plurality of second holes which are uniformly distributed in the separation area.

In one embodiment, the at least one hole includes at least one third hole, the at least one third hole can separate the middle area heating section from the first layer heating element, the first communication area is an area on the first layer heating element corresponding to the at least one third hole, and the second communication area is an area on the second layer heating element corresponding to the at least one third hole.

In one embodiment, the minimum pore diameter of the at least one third pore is smaller than the length of the trough section of the intermediate region heating section adjacent to the heat insulating member when the heating wire forming the second heating element is wavy.

In one embodiment, the heat insulating member is provided with a plurality of third holes, and the plurality of third holes are uniformly distributed on the heat insulating member.

In one embodiment, the thermal shield comprises: the heat dissipation channel comprises a region between two adjacent sub-heat insulators.

In one embodiment, the second layer heat generating element comprises a plurality of intermediate region heat generating segments located at intermediate regions of any adjacent two of the second support elements; each sub-heat shield is positioned between each of the intermediate region heat generating sections and the first layer heat generating member.

In one embodiment, the plurality of first supports are disposed corresponding to the plurality of intermediate region heat generating segments.

In one embodiment, the heat generating component further comprises: a support body; the plurality of first supporting pieces are arranged on the supporting main body at intervals by taking the supporting main body as a center; the plurality of second supporting pieces are arranged on the supporting body at intervals by taking the supporting body as a center.

The beneficial effects of this application: the application provides a hair care device, hair care device includes heating element, heating element includes that the first floor generates heat, the second floor generates heat piece and thermal-insulated piece, be located the first floor and generate heat and set up the heat dissipation passageway on the thermal-insulated piece between the piece that generates heat and the second floor, it has the intercommunication region that corresponds with the heat dissipation region to generate heat on the piece to generate heat on the first floor, the second floor, in intercommunication region department, the first floor generates heat and does not have the thermal-insulated piece between the piece that generates heat and the second floor, the heat dissipation of the intercommunication region that corresponds with the heat dissipation passageway can not receive the influence of thermal-insulated piece, the heat dissipation of the piece that generates heat of reinforcing first floor, the second floor generates heat, and then can solve the first floor to generate heat, the second floor generates heat the piece and appear the inhomogeneous phenomenon of heat dissipation that the piece generates heat on the first floor can promote the heat piece that generates heat with the second floor.

Drawings

FIG. 1 is a schematic view of a hair care appliance provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the hair care appliance provided in FIG. 1 at A-A;

FIG. 3 is a partial cross-sectional view of the hair care appliance provided in FIG. 2;

FIG. 4 is a schematic view of a line plate rack provided in FIG. 3;

FIG. 5 is a partial exploded view of the hair care appliance provided in FIG. 1;

FIG. 6 is a cross-sectional view of the circuit board rack provided in FIG. 4;

FIG. 7 is a partial schematic view of the hair care appliance provided in FIG. 1;

FIG. 8 is a partial schematic view of the hair care appliance provided in FIG. 7;

FIG. 9 is a partial enlarged view at B in FIG. 3;

FIG. 10 is a schematic view of a portion of a heat generating component according to an embodiment of the present disclosure;

FIG. 11 is a schematic diagram of a heat generating component according to an embodiment of the present disclosure;

FIG. 12 is a schematic view of a heat shield according to an embodiment of the present disclosure;

FIG. 13 is a simplified diagram of a heat generating component provided in an embodiment of the present application;

FIG. 14 is a simplified illustration of a heat generating component provided in accordance with another embodiment of the present application;

fig. 15 is a simplified diagram of a heat generating component provided in accordance with yet another embodiment of the present application.

Reference numerals: 1-head; 2-tail; 10-a heating component; 20-a cylinder; 21-a support body; 22-an outer cylinder; 23-heat insulating sheets; 31-a circuit board rack; 32-a drive-by-wire assembly; 40-handle; 41-an air inlet channel; 42-a switch assembly; 43-motor; 44-an air inlet; 91-a first seal; 92-a second seal; 93-a third seal; 201-an air outlet; 221-slots; 222-clip arms; 311-cutting; 312-clamping convex; 313-threading holes; 315-an air inlet; 316-mounting holes; 321-a first laminate; 322-a second laminate; 323-an electrical component; 324-heat sink; 325-a circuit board; 1000-a whole machine body; 1001-an air supply channel; 2000-complete machine shell; 2001-touch assembly; 2003-a handle housing; 2004-extending shell segments; 2005-touch housing; 2006-an air duct housing; 2221-card hole; 3001-circuit cavities; 3002-heating chamber; 3003-insulating chamber; 3004-mounting cavities; 3101-a first wall; 3102-a second wall; 3103-concave space; 9211-wiring holes; 51-a first layer heating element; 511-a first communication area; 52-a second layer heating element; 521-an intermediate zone heating section; 53-a first support; 54-a second support; 55-heat insulation; 555-sub-insulation; 551-heat dissipation channels; 552-a separation region; 553-heat dissipation area.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings.

In the description of the present application, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1 to 9, the present application provides a hair care appliance, mainly for drying and styling hair, comprising: the whole machine body 1000, the circuit board frame 31, the wire control assembly 32 and the heating assembly 10. The hair care device is provided with an air supply channel 1001, and the air supply channel 1001 is communicated with the air inlet 315 and the air outlet 201. The circuit board frame 31 is installed in the whole machine body 1000, and divides the whole machine body 1000 into a heating cavity 3002 and a circuit cavity 3001, wherein the heating cavity 3002 is located on the air supply channel 1001, and the circuit cavity 3001 is isolated from the air supply channel 1001. The heat generating component 10 is mounted in the heating chamber 3002, and the wire control component 32 is mounted on the wire frame 31 and is located in the circuit chamber 3001.

Specifically, by the arrangement of the circuit board frame 31 in the whole machine body 1000, the whole machine body 1000 is divided into two parts of a heating cavity 3002 and a circuit cavity 3001, and the heating cavity 3002 is located at one side close to the air outlet 201. The heating cavity 3002 is used for installing the heating component 10, and the heating cavity 3002 is arranged on the air supply channel 1001, so that air flow sent in through the air supply channel 1001 is heated by the heating component 10 and then sent out from the air outlet 201, and dry sending operation is realized. The presence of the drive-by-wire assembly 32 within the circuit chamber 3001 is isolated from the heating chamber 3002 to ensure that air flow within the heating chamber 3002 does not reach the drive-by-wire assembly 32.

FIG. 10 is a schematic view of a portion of a heat generating component according to an embodiment of the present disclosure; FIG. 11 is a schematic diagram of a heat generating component according to an embodiment of the present disclosure; FIG. 12 is a schematic view of a heat shield according to an embodiment of the present disclosure; FIG. 13 is a simplified diagram of a heat generating component provided in an embodiment of the present application; FIG. 14 is a simplified illustration of a heat generating component provided in accordance with another embodiment of the present application; fig. 15 is a simplified diagram of a heat generating component provided in accordance with yet another embodiment of the present application. As shown in fig. 10 to 15, the heat generating component 10 includes: a first layer heat generating member 51, a second layer heat generating member 52, a plurality of first supporting members 53, a plurality of second supporting members 54, and a heat insulating member 55. The second layer heating element 52 is sleeved outside the first layer heating element 51. The plurality of first supporting members 53 serve to support the first-layer heat generating member 51. The plurality of second supporting members 54 serve to support the second-layer heat generating member 52. The heat insulating member 55 is disposed between the first layer heating member 51 and the second layer heating member 52, the heat insulating member 55 is provided with a heat dissipation channel 551, the first layer heating member 51 includes a first communication region 511 corresponding to the heat dissipation channel 551, the second layer heating member 52 includes a second communication region corresponding to the heat dissipation channel 551, and the first communication region 511 is communicated with the second communication region.

The hair care device provided by the embodiment includes the heating component 10, the heating component 10 includes the first layer heating piece 51, the second layer heating piece 52 and the heat insulation piece 55, the heat dissipation channel 551 is arranged on the heat insulation piece 55 between the first layer heating piece 51 and the second layer heating piece 52, the communication area corresponding to the heat dissipation area 553 exists on the first layer heating piece 51 and the second layer heating piece 52, the heat dissipation of the communication area corresponding to the heat dissipation channel 551 is not affected by the heat insulation piece 55, the heat dissipation of the first layer heating piece 51 and the second layer heating piece 52 is enhanced, the phenomenon that the heat dissipation of the first layer heating piece 51 and the second layer heating piece 52 is uneven is further solved to a certain extent, and the heat dissipation uniformity of the first layer heating piece 51 and the second layer heating piece 52 can be improved.

Preferably, as shown in fig. 10 and 11, the heat insulating member 55 is clamped to the first supporting member 53. Of course, in another possible embodiment, the heat insulating member 55 may also be snapped onto the second support member 54. By means of the arrangement, the existing supporting piece is used for fixing the heat insulating piece 55, the heat insulating piece 55 does not need to be fixed in a mode of independently arranging a clamping piece and the like for the heat insulating piece 55, the structure of the heating assembly 10 is simplified on the basis of achieving the same effect, and installation is simple.

In one possible embodiment, as shown in fig. 13, 14 and 15, the second layer heat generating member 52 includes a plurality of intermediate region heat generating sections 521 located at intermediate regions of any adjacent two second support members 54, and the heat insulating member 55 is capable of separating the intermediate region heat generating sections 521 from the first layer heat generating member 51. In fig. 13, 14 and 15, point a indicates the position of the heating wire supported by the support member on the second layer heating member 52, point B indicates the position of the heating wire supported by the support member on the first layer heating member 51, and the portion of the second layer heating member 52 framed in the dashed line frame C is the middle area heating section 521. The intermediate area heating section 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 section 521 from the first layer heating element 51 at the corresponding position. Fig. 13, 14 and 15 are simplified diagrams, in which, for convenience of explanation of the two-layer heating element, the two-layer heating wires are not connected and are connected end to end, in practice, the heating wires of the first layer heating element 51 may be connected to the heating wires of the second layer heating element 52, and each layer of heating wires is not connected end to end, specifically, each layer of heating wires may be spirally wound on the supporting element.

In this embodiment, the heat insulating member 55 can separate the middle area heating section 521 of the second layer heating member 52 from the first layer heating member 51, so that when the electric current falls, the middle area heating section 521 of the second layer heating member 52 will not contact with the first layer heating member 51, avoiding the risk of short circuit caused by the wire overlapping between the middle area heating section 521 of the second layer heating member 52 and the first layer heating member 51, and the heat insulating member 55 is provided with the heat dissipation channel 551, there is a communication area corresponding to the heat dissipation area 553 between the first layer heating member 51 and the second layer heating member 52, and there is no heat insulating member 55 between the first layer heating member 51 and the second layer heating member 52 in the communication area, so that the heat dissipation of the communication area corresponding to the heat dissipation channel 551 will not be affected by the heat insulating member 55, thereby enhancing the heat dissipation of the first layer heating member 51 and the second layer heating member 52, and further solving the uneven phenomenon of the first layer heating member 51 and the second layer heating member 52 to a certain extent, and improving the heat dissipation uniformity of the first layer heating member 51 and the second layer heating member 52, and improving the comfort of the user.

In one possible embodiment, as shown in fig. 10 and 12, the heat dissipation channel 551 is at least one hole provided in the heat insulating member 55, the first communication region 511 is a region corresponding to the at least one hole in the first layer heat generating member 51, and the second communication region is a region corresponding to the at least one hole in the second layer heat generating member 52. In this way, the heat dissipation of the areas corresponding to the at least one hole on the first layer heating element 51 and the second layer heating element 52 is not affected by the heat insulating element 55, and the holes are directly formed in the heat insulating element 55, so that the number of parts is reduced, and the assembly is convenient.

Further, as shown in fig. 12, the heat insulating member 55 includes a partition area 552 and a heat dissipation area 553 (divided by a dotted line S in the drawing), the partition area 552 is an area of the heat insulating member 55 corresponding to the plurality of middle area heat generating sections 521, the heat dissipation area 553 is an area of the heat insulating member 55 other than the partition area 552, at least one hole provided in the heat insulating member 55 includes at least one first hole, at least one first hole is provided in the heat dissipation area 553, and the partition area 552 can partition the middle area heat generating sections 521 from the first layer heat generating member 51. In the present embodiment, by providing the hole in the heat dissipation region 553 of the heat insulating member 55, not only the heat dissipation effect of the double-layer heat generating member can be ensured, but also the partition region 552 can play a certain supporting role for the second-layer heat generating member 52, and the degree of deformation of the second-layer heat generating member 52 in a dropped state can be reduced.

Further, as shown in fig. 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. Therefore, the heat dissipation uniformity of the double-layer heating element can be further improved.

Further, the at least one hole further includes at least one second hole, and the separation region 552 is provided with at least one second hole, and the at least one second hole can separate the middle region heat generating section 521 from the first layer heat generating member 51. In this embodiment, holes are further provided in the separation region 552, so that the heat dissipation effect of the double-layer heat generating member is further improved.

Specifically, when the heating wire forming the heating element is in a wave shape as shown in fig. 14, the minimum aperture of at least one second hole is smaller than the length of the valley section 5211 of the middle-region heating section 521 adjacent to the heat insulator 55. Therefore, the heat dissipation effect can be guaranteed, and short circuit can be avoided.

Further, a plurality of second holes are disposed on the separation region 552, and the plurality of second holes are uniformly distributed in the separation region 552. Therefore, the heat dissipation uniformity of the double-layer heating element can be further improved.

In another embodiment of the present application, the at least one hole provided in the heat insulating member 55 includes at least one third hole, the at least one third hole can separate the middle area heat generating section 521 from the first layer heat generating member 51, the first communication area 511 is an area of the first layer heat generating member 51 corresponding to the at least one third hole, and the second communication area is an area of the second layer heat generating member 52 corresponding to the at least one third hole. In this embodiment, at least one third hole serves both as a partition and as a heat sink.

Further, when the heating wire forming the heating element is in a wave shape as shown in fig. 14, the minimum aperture of at least one third hole is smaller than the length of the trough section of the middle area heating section 521 adjacent to the heat insulator 55. Therefore, the heat dissipation effect can be guaranteed, and short circuit can be avoided.

Further, the heat insulating member 55 is provided with a plurality of third holes uniformly distributed on the heat insulating member 55. Therefore, the heat dissipation uniformity of the double-layer heating element can be further improved, and the manufacture of the heat insulating element 55 is facilitated.

In yet another embodiment of the present application, as shown in fig. 15, the heat insulator 55 includes: a plurality of sub-insulation 555, the communication region being a region between two adjacent sub-insulation 555. In this embodiment, although it is necessary to manufacture a plurality of sub heat insulators 555, the plurality of sub heat insulators 555 are not connected to each other, and the material requirement for the heat insulator 55 is reduced, and in addition, the communication area between the first layer heat generating element 51 and the second layer heat generating element 52 is relatively large with respect to the way of providing holes, so that the heat dissipation of the double-layer heat generating element is uniform.

Further, the second-layer heat generating member 52 includes a plurality of intermediate-region heat generating sections 521 located at intermediate regions of any adjacent two of the second support members 54, and each sub-heat insulating member 555 is located between each intermediate-region heat generating section 521 and the first-layer heat generating member 51. In this embodiment, each sub heat insulating piece 555 can separate the middle area heating section 521 of the second layer heating piece 52 from the first layer heating piece 51, so that when the second layer heating piece 52 is in a power-on falling state, the middle area heating section 521 of the second layer heating piece 52 cannot be in contact with the first layer heating piece 51, the risk of short circuit caused by wire overlapping between the middle area heating section 521 of the second layer heating piece 52 and the first layer heating piece 51 is avoided, a heat dissipation channel 551 is formed between adjacent sub heat insulating pieces 555, a communication area corresponding to the heat dissipation area 553 exists on the first layer heating piece 51 and the second layer heating piece 52, a heat insulating piece 55 is not arranged between the first layer heating piece 51 and the second layer heating piece 52 in the communication area, heat dissipation of the communication area corresponding to the heat dissipation channel 551 is not affected by the heat insulating piece 55, the heat dissipation phenomena of the first layer heating piece 51 and the second layer heating piece 52 are avoided to a certain extent, and the heat dissipation uniformity of the first layer heating piece 51 and the second layer heating piece 52 can be improved.

Further, at least one fifth hole is provided in the sub heat insulator 555, and the at least one fifth hole can separate the middle area heat generating section 521 from the first layer heat generating member 51. In this embodiment, holes are further provided in the separation region 552, so that the heat dissipation effect of the double-layer heat generating member is further improved.

Specifically, when the heating wire forming the heating element is in a wave shape as shown in fig. 14, the minimum aperture of at least one fifth hole is smaller than the length of the trough section of the middle area heating section 521 adjacent to the heat insulator 55. Therefore, the heat dissipation effect can be guaranteed, and short circuit can be avoided.

As shown in fig. 10, 11, 14, and 15, the plurality of first supporting pieces 53 are provided corresponding to the plurality of intermediate area heat generating sections 521. In this way, the first supporting member 53 also has a supporting effect on the second-layer heat generating member 52, so that the second-layer heat generating member 52 is not easily deformed. Of course, in another embodiment of the present application, as shown in fig. 13, a plurality of first supporting members 53 may also be provided corresponding to a plurality of second supporting members 54, respectively.

As shown in fig. 2, 10, and 11, the heat generating component 10 further includes: a support main 21; the plurality of first supporting pieces 53 are provided on the supporting body 21 at intervals centering on the supporting body 21; the plurality of second supporting pieces 54 are provided on the supporting body 21 at intervals centering on the supporting body 21. In this way, assembly of the heat generating component 10 is facilitated. In another embodiment of the present application, the heat generating component 10 further includes: the support body 21, the plurality of first supports 53 are provided on the support body 21 at intervals around the support body 21, the heat insulator 55 is fixed to the plurality of second supports 54, and the plurality of second supports 54 are provided on the heat insulator 55 at intervals around the heat insulator 55.

Specifically, the first supporting member 53 is provided with a plurality of first notches, and heating wires on the first layer heating member 51 are wound on the plurality of first notches so that the first layer heating member 51 is in a spiral shape; as shown in fig. 10, the second support 54 is provided with a plurality of second notches 541, and heating wires on the second layer heating element 52 are wound on the plurality of second notches 541, so that the second layer heating element 52 is spiral, and the first notches and the second notches 541 have the same structure.

In this application, the first wall 3101 and the second wall 3102 are disposed at a distance from the heat generating component 10, respectively, so that the air flow sent into the air supply passage 1001 can change the 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 passage 1001 than the second wall 3102, the junction therebetween is the most dominant region for changing the direction of the wind. The air flow entering through the air inlet 315 of the air supply duct 1001 flows partially along the position near the first wall 3101 to the junction of the first wall 3101 and the second wall 3102, and because of the limitation of the side walls of the junction, changes direction to flow along the second wall 3102 and through the heat generating component 10 to the air outlet. Meanwhile, because the change of the airflow direction brings about a loss of wind force, the second wall 3102 is arranged closer to the heat generating component 10 than the first wall 3101, so that the flow cross section passing between the second wall 3102 and the heat generating component 10 is reduced, thereby improving the airflow speed to be blown out from the air outlet as efficiently as possible, and the wind force is not caused to flow towards one side of the circuit cavity 3001 by changing the flow direction.

That is, by the above arrangement, on the basis of satisfying the complete isolation of the circuit chamber 3001 from the heating chamber 3002, the wire control assembly 32 installed in the circuit chamber 3001 is isolated from the air supply channel 1001 in communication with the heating chamber 3002, so that the hot air flowing through the heating chamber 3002 does not affect the wire control assembly 32 in the circuit chamber 3001 (for example, cause overheating or other heat effects of the wire control assembly 32), and the wire control assembly 32 does not affect the hot air flowing in the heating chamber 3002 (for example, cause turbulence of the hot air flowing). Simultaneously, because the first wall 3101 and the second wall 3102 change the wind direction and adjust the flow speed, the possibility that the hot air flows towards the circuit cavity 3001 side is reduced, so that the effect of drying hair is improved, and meanwhile, the influence of the hot air flow in the wire control assembly 32 and the air supply channel 1001 is further reduced.

In some embodiments, a threading hole 313 is configured on the circuit board rack 31 at a position corresponding to the first wall 3101, and a first sealing member 91 is disposed at the threading hole 313, and a wire of the heating component 10 is connected to the wire control component 32 through the first sealing member 91. Specifically, the wires of the heat generating component 10 in the heating chamber 3002 pass through the threading holes 313 of the circuit board frame 31 and then are connected to the wire control component 32. And it is because of the arrangement of the first sealing member 91 at the threading hole 313 that the sealing property at the wire routing is ensured, the sealing property of the insulation between the heating chamber 3002 and the circuit chamber 3001 is further enhanced. Meanwhile, the threading hole 313 is provided at the first wall 3101 on the circuit board holder 31 to reduce interference between the wire and the electrical element 323 in the circuit board 325. Of course, such an arrangement also facilitates the construction of the threading hole 313 itself and the installation of the first seal 91 at the threading hole 313. In a specific embodiment, the first seal 91 employs a wire plug having a routing hole 9211 for the passage of a wire. The outer wall of the wire plug is tightly pressed with the hole wall of the threading hole 313, and the hole wall of the wire routing hole 9211 is tightly pressed with the outer wall of the wire, so that sealing connection of the wire routing position is realized, and air volume leakage in the air supply channel 1001 is reduced. Wherein, the wire plug adopts rubber material or silica gel material.

As shown in fig. 3 and 5, in some embodiments, the wiring board rack 31 is configured with mounting holes 316 penetrating in the thickness direction thereof. The wire control assembly 32 comprises a circuit board 325 and a heat dissipation member 324 arranged on one side of the circuit board 325 facing the heating cavity 3002, wherein a part of the heat dissipation member 324 protruding from the circuit board 325 is embedded in the mounting hole 316.

Specifically, the mounting holes 316 are configured to facilitate the heat dissipation member 324 to pass through the circuit board rack 31 and contact with the cold air flow in the air supply channel 1001, so that heat generated during operation of the circuit board 325 is transferred to the air supply channel 1001, and heat dissipation of the circuit board 325 is achieved on the basis of meeting the requirement of the temperature rise of the cold air flow in the air supply channel 1001. Furthermore, the heat sink 324 is provided to allow heat to flow only toward the lower temperature side, i.e., to dissipate heat in a unidirectional flow, thereby satisfying the requirement that only the heat of the circuit board 325 is transferred to the cold air flow in the air supply duct 1001 through the heat sink 324. In a specific embodiment, the sealing connection of the heat dissipating member 324 with respect to the circuit board rack 31 improves the sealing performance of the air supply channel 1001, reduces the leakage amount of the air quantity to the circuit cavity 3001, and improves the isolation performance of the wire control assembly 32 with respect to the air supply channel 1001. In yet another specific embodiment, the heat sink 324 is an arcuate fin extending circumferentially along the complete machine body 1000. By such arrangement, the contact area between the radiator 324 and the cooling air flow in the air flow passage 1001 is increased, and the heat radiation effect is improved. In yet another embodiment, the circuit board 325 is coupled to screws and the circuit board holder 31 is provided with screw holes through which the screws are screwed to effect mounting of the circuit board 325 relative to the circuit board holder 31.

As shown in fig. 3 and 5, in some embodiments, the side of the heat sink 324 facing the heating chamber 3002 is flush with the side of the mounting hole 316 facing the heating chamber 3002. Such a configuration facilitates the air flow entering the air supply channel 1001 to contact the heat dissipating surface of the heat dissipating member 324 more easily, thereby taking away the heat of the heat dissipating member 324 and meeting the heat dissipating requirement. In other embodiments, the depth of the heat sink 324 protruding into the mounting hole 316 is less than the depth of the mounting hole 316 itself, i.e., the mounting of the heat sink 324 relative to the mounting hole 316 has a mounting margin in the depth direction, and the mounting margin is between 0.8mm and 2mm, which may be, for example, 0.8mm, 1.2mm, 1.8mm, 2mm, etc. The installation allowance is set so as to meet the assembly of the heat dissipation elements 324 with different thicknesses.

As shown in fig. 3 and 7, in some embodiments, the circuit board 325 includes a first layer board 321 and a second layer board 322 stacked along an axial direction of the complete machine body 1000, and an electrical component 323 disposed 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 complete machine body 1000, and the heat sink 324 is disposed on one of the first layer board 321 and the second layer board 322 on a side close to the circuit board frame 31. That is, the circuit board 325 adopts a double-layered board structure, and the electrical components 323 can be distributed on the first and

second boards

321 and 322 according to design requirements or convenience of structural layout, thereby simplifying the overall design difficulty of the circuit board 325. In particular, the arrangement of the double-layer board can increase the mounting space of the electrical component 323 and reduce the load of the single-layer board compared to the single-layer board 325. Meanwhile, the first laminate 321 and the second laminate 322 are overlapped along the axial direction of the whole machine body 1000, so that the diameter of the circuit board 325 is effectively reduced, and the radial dimension of the whole machine body 1000 is further reduced. In addition, the provision of a height difference between the two laminates, i.e., a space between the first laminate 321 and the second laminate 322, facilitates the mounting of the electrical components 323, thereby reducing interference between the electrical components 323 on each laminate. Furthermore, the arrangement of the first laminate 321 and the second laminate 322 relative to the heat sink 324 ensures that the heat sink 324 can contact the cold air flow in the air supply passage 1001 to dissipate heat while satisfying the installation of the heat sink 324 relative to the circuit board 325.

In one particular embodiment, as shown in fig. 3 and 7, the second ply 322 is located on a side proximate to the circuit board frame 31, and the second ply 322 has a smaller radial dimension along the machine body 1000 than the first ply 321. The heat sink 324 is mounted to the second laminate 322. It can be said that the separate layout of the second laminate 322 and the second laminate 322 not only facilitates the assembly layout of the electrical element 323, but also allows relatively important components of the electrical element 323 to be disposed on the first laminate 321 to enhance the protection. In a specific embodiment, the first laminate 321 is a circular plate, so as to adapt as much as possible to the cylindrical structure of the complete machine body 1000. The second laminate 322 adopts a special-shaped plate, which is convenient for matching with the electric element 323 and the circuit board frame 31, and improves the assembly convenience. The first laminate 321 and the second laminate 322 are fixed by a connecting column, or are directly fixed into a whole structure by screws. Then, it is mounted to the wiring board frame 31.

As shown in fig. 3 and 6, in one particular embodiment, the surface of the first wall 3101 is planar and the surface of the second wall 3102 is curved. Such arrangement reduces the wind loss while satisfying that the air flow smoothly enters the air supply passage 1001, and the curved surface arrangement makes the contact with the air flow smoother, so that the direction of the air flow is changed, and the wind loss is further reduced. 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 planar. Meanwhile, in yet another specific embodiment, the junction 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 joint, and meanwhile, the fluency of airflow is improved.

As shown in fig. 3 and 6, in some embodiments, the projected area of the second wall 3102 with respect to the side plane of the air outlet 201 is 45% -49% of the projected area of the circuit board holder 31 with respect to the side plane of the air outlet 201. By the arrangement, the area of the second wall 3102 is smaller than that of the first wall 3101, so that the air duct in the air supply channel 1001 at the second wall 3102 is not excessively small, and the airflow speed is excessively large, and the protection effect on the heating assembly 10 is improved. Of course, the area of the second wall 3102 is limited to facilitate the positioning of the threading hole 313 relative to the circuit board holder 31. In a specific embodiment, the projected area is 45%, 46.5%, 48.2%, 49%, etc. In yet another specific embodiment, the second wall 3102 is located at about 2mm-3mm from the edge of the threading aperture 313. For example, 2mm, 2.5mm, 3mm, etc.

As shown in fig. 3 and 6, in some embodiments, the maximum distance difference between the second wall 3102 and the first wall 3101, respectively, relative to the air outlet 201 is between 0.6cm and 1.3cm. The difference here refers to the spacing of the first wall 3101 and the second wall 3102 along the axial direction of the complete machine body 1000. Specifically, as can be seen from the above description, the second wall 3102 is actually closer to the side of the air outlet 201 facing the air supply channel 1001 than the first wall 3101, and the distance between the first wall 3101 and the second wall 3102 is actually the length of the air duct after the cross-sectional area is changed, so that the purpose is to reduce the wind loss and increase the wind speed as much as possible while changing the wind direction. In a specific embodiment, the axial difference is 0.6cm, 0.86cm, 1cm or 1.3cm.

As shown in fig. 3 and 6, in some embodiments, the first wall 3101 and the second wall 3102 are joined such that at least a portion of the direction of the airflow is changed by 60-90 degrees. Specifically, as described above, the airflow flowing along the side near the first wall 3101 changes the direction of the airflow due to the limitation of the side wall at the junction between the first wall 3101 and the second wall 3102, so the limitation of the angle of changing the direction of the airflow is actually equivalent to the limitation of the angle of the side wall at the junction between the first wall 3101 and the second wall 3102, that is, the limitation of the angle of the side wall at the junction compared with the first wall 3101, and the further relation of the angle setting of the first wall 3101 compared with the air outlet side is obtained. For example, when the wind direction thereof is changed by 90 degrees, the side wall at the junction is in a perpendicular state to the first wall 3101. At this time, the first wall 3101 is parallel to the air outlet side, so that the air can smoothly flow to the air outlet only if the air direction has a 90 degree bend. When the wind direction changes by 60 degrees, the first wall 3101 has an included angle position relationship of 60 degrees compared with the air outlet. Of course, the angle of change of the flow direction may be 75 degrees, 85 degrees, or the like. In fact, the greater the change in flow direction, the more convenient the design of the wiring board rack 31 is provided by the position of the first wall 3101 relative to the air outlet, and the more convenient the design and manufacture of the resulting hair care appliance.

As shown in fig. 3 and 6, in some embodiments, the second wall 3102 causes a 45-90 degree change in the flow direction of at least a portion of the airflow. Specifically, the curved structure of the second wall 3102 enables the airflow flowing along the second wall 3102 to be adjusted in the wind direction so as to be changed to the side facing the air outlet. Therefore, the second wall 3102 and the change of the airflow direction are actually related to the position of the second wall 3102 compared to the air outlet. Of course, the greater the angle of change of direction of flow through the second wall 3102, the more convenient the design of the entire circuit board holder 31. In a particular embodiment, the direction of flow change angle created by the second wall 3102 is 45 degrees, 80 degrees, or 90 degrees.

As shown in fig. 3-7, in some embodiments, the circuit board rack 31 is located at the position of the second wall 3102 and a side facing the circuit cavity 3001 is configured with a recessed space 3103, the recessed space 3103 being configured to house a portion of the wire control assembly 32. The threading hole 313 is located on the wiring board holder 31 at a position corresponding to the first wall 3101. Specifically, the side of the circuit board holder 31 facing the heating chamber 3002 is configured with an open cylindrical chamber, and the cylindrical chamber is surrounded by the air supply passage 1001, and the first wall 3101, the second wall 3102, and the concave space 3103 are all disposed at the bottom of the cylindrical chamber. The arrangement of the concave space 3103 on the side of the circuit board frame 31 facing the circuit cavity 3001 enables components with larger axial dimensions of the whole machine body 1000 to be arranged in the concave space 3103 on the circuit board 325 side with respect to the circuit board 325 side, thereby improving the adaptability of the arrangement of the circuit board 325. The threading hole 313 is disposed on the first wall 3101 at the bottom of the cylindrical cavity and penetrates the first wall 3101, so as to facilitate connection of the wire with the wire control assembly 32 in the isolated circuit cavity 3001. Of course, such an arrangement also facilitates the construction of the threading hole 313 itself and the installation of the first seal 91 at the threading hole 313. In a specific embodiment, the size of the recess 3103 is related to the axial difference of the second wall 3102 compared to the first wall 3101 to maximize the fit of the electrical component 323 while meeting the duct guidance.

As shown in fig. 2, in some embodiments, the complete machine body 1000 further includes a touch assembly 2001 mounted on a side of the wire control assembly 32 facing away from the air outlet 201, the circuit cavity 3001 is disposed between the circuit board frame 31 and the touch assembly 2001, and the touch assembly 2001 is electrically connected to the wire control assembly 32. Specifically, the touch assembly 2001 is configured for user manual control to control the hair care appliance, such as controlling the power level of the hair care appliance, etc. The touch assembly 2001 is disposed on a side facing away from the blowing port to reduce interference with the air flow. In fact, when the touch assembly 2001 is operated, it may generate weak heat because the touch assembly 2001 itself has a touch circuit. When the circuit chamber 3001 is disposed between the touch assembly 2001 and the wiring board frame 31, the air supply passage 1001 is also isolated from the touch assembly 2001, in addition to satisfying the isolation of the wire control assembly 32 from the air supply passage 1001.

As shown in fig. 2, in a specific embodiment, the touch assembly 2001 is configured with a touch housing 2005, the touch housing 2005 is fastened to an end of the complete machine housing 2000 facing away from the air outlet 201, and the touch housing 2005 is in sealing connection with the complete machine housing 2000. Specifically, the whole machine shell 2000 is wrapped on the outer side of the whole machine body 1000, so as to protect the whole machine body 1000. The assembly of the touch housing 2005 and the complete machine housing 2000 improves the overall installation compactness of the complete machine body 1000. Meanwhile, the touch housing 2005 is in sealing connection with the whole machine housing 2000, so that the sealing requirement of the whole hair care device is met, and the circuit cavity 3001 is ensured to be in a sealing state, so that impurities in the external environment can be prevented from entering the circuit cavity 3001 to damage the electrical element 323. An annular sealing ring is pressed between the touch shell 2005 and the whole machine shell 2000, so as to realize sealing connection.

As shown in fig. 2 and 3, in some embodiments, a heat insulating cavity 3003 surrounding the peripheral side of the whole machine body 1000 is provided between the whole machine shell 2000 and the whole machine body 1000, and the heat insulating cavity 3003 is at least partially overlapped with the heating cavity 3002 along the axial direction of the whole machine body 1000. Specifically, by the arrangement of the heat insulation cavity 3003, the whole machine shell 2000 is not in direct contact with the whole machine body 1000, and heat conduction is not directly performed. Meanwhile, because the main heat of the hair care device is derived from the heating component 10, the heat insulation cavity 3003 is in a position relation relative to the heating component 10, so that the heat insulation cavity 3003 is mainly arranged on the periphery side of the heating component 10 and acts on the heat generated by the heating component 10 in the most direct mode, thereby effectively reducing the heat dissipation in the air supply channel 1001, and enabling the heat in the air supply channel 1001 to be used for actual hair drying operation as much as possible or almost completely, thereby improving the actual use effective heat of the hair care device and improving the hair drying effect. Moreover, because of the heat insulation cavity 3003, the heat generated by the heating component 10 is not directly conducted to the whole machine shell 2000, so that the risk of overheating of the whole machine shell 2000 is caused, and the use safety is improved.

As shown in fig. 2 and 3, in a specific embodiment, the heat insulation cavity 3003 is disposed annularly along the axial direction of the whole machine body 1000, and the heat insulation cavity 3003 is wrapped around the outside of the heating cavity 3002. By the arrangement, the heat-insulating cavities 3003 are distributed in the circumferential direction of the heating assembly 10, so that the heat-insulating area is increased, and the effect of preventing heat loss is enhanced. In other embodiments, the insulating cavities 3003 are arcuate in configuration and are multiple in number and spaced circumferentially about the heat generating assembly 10.

As shown in fig. 2 and 3, in some embodiments, the insulating cavity 3003 is between 0.5mm-2mm along the radial width of the mill body 1000. Through the size limitation to the radial width of the heat insulation cavity 3003, the safe heat insulation distance between the whole machine body 1000 and the whole machine shell 2000 is ensured, namely, the hair care device is ensured to have smaller size along the radial direction of the whole machine body 1000 while the reduction of heat dissipation is satisfied, and meanwhile, the assembly stability of the whole machine body 1000 relative to the whole machine shell 2000 is improved. Wherein the radial width of the insulating cavity 3003 is 0.5mm, 0.7mm, 1mm, 1.5mm or 2mm.

As shown in fig. 2 and 3, in some embodiments, the complete machine body 1000 further includes a cylinder 20 extending along an axis of the air supply channel 1001, where a side of the cylinder 20 facing away from the air outlet 201 is in sealing connection with the circuit board frame 31, and the cylinder 20 and the circuit board frame 31 together enclose the air supply channel 1001. The air outlet 201 is disposed on a side of the cylinder 20 facing away from the circuit board frame 31, and the air inlet 315 is disposed on a side of the periphery of the circuit board frame 31 near the first wall 3101. The heat insulating cavity 3003 is disposed at least between the cylinder 20 and the complete machine housing 2000.

Specifically, the heating chamber 3002 is a cylinder chamber of the cylinder 20, the heating assembly 10 is installed in the cylinder chamber, and the cylinder 20 and the circuit board frame 31 together enclose the air supply channel 1001, so that air flows through the heating assembly 10 to be heated and then is discharged from the air outlet 201 to be dried. At the same time, the sealing connection between the cylinder 20 and the circuit board frame 31 improves the sealing performance of the air supply channel 1001 and reduces the leakage amount of the air flow in the air supply channel 1001. When the heat insulating chamber 3003 is disposed between the cylinder 20 and the complete machine housing 2000, it is just wrapped around the outside of the heating chamber 3002, thereby reducing heat loss in the heating chamber 3002. When the heat insulating chamber 3003 is disposed between the periphery of the cylinder 20, the periphery of the circuit board frame 31 and the whole machine casing 2000, the leakage of the air volume in the air supply passage 1001 can be reduced while the heat loss in the heating chamber 3002 is reduced.

As shown in fig. 2 and 3, in some embodiments, the insulating chamber 3003 communicates with the circuit chamber 3001 described above. At this time, a gap is reserved between the complete machine case 2000 and the wiring board frame 31, which also serves as a part of the insulating chamber 3003, so that the insulating chamber 3003 surrounds the circumferential sides of the cylinder 20 and the wiring board frame 31. Wherein, 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 insulating chamber 3003 is not in communication with the circuit chamber 3001, and the complete housing 2000 and the circuit board frame 31 are not provided with a gap on their peripheral sides.

As shown in fig. 2, 3 and 8, in some embodiments, the cylinder 20 includes a support body 21 and an outer cylinder 22 sleeved outside the support body 21, the heating component 10 is disposed between the support body 21 and the outer cylinder 22, and an end of the outer cylinder 22 facing away from the air outlet 201 is connected to the circuit board frame 31 in a sealing manner through a second sealing member 92. The heat insulating chamber 3003 is disposed between the outer tub 22 and the complete machine case 2000, and at least an inner wall of the outer tub 22 facing the heat generating component 10 is provided with a heat insulating sheet 23. Specifically, the heating chamber 3002 is located between the outer wall of the support body 21 and the inner wall of the outer tube 22, and the heating assembly 10 is mounted within the heating chamber 3002, so that the support of the heating assembly 10 is achieved by the common restraint of the support body 21 and the outer tube 22. The outer cylinder 22 is provided not only for cooperation with the wiring board frame 31 but also for protection of the heat generating component 10 and the support main 21. Meanwhile, the outer cylinder 22 can be in clamping fit with the whole machine shell 2000 covered on the outer side. For example, a plurality of circumferentially spaced limit ribs are provided on the outer wall of the complete machine casing 2000, and are clamped on the outer cylinder 22 by the limit ribs. Of course, the outer cylinder 22 and the complete machine shell 2000 can be fixed by arranging a matching assembly mode of the clamping arm and the clamping groove. The circuit board frame 31 can be axially fixed to the whole machine housing 2000 by its outer arc structure, and can be axially fixed to the touch housing 2005 mounted on the rear side, thereby realizing the assembly of the whole hair care device head 1 and improving the compactness. The provision of the heat insulating sheet 23 on the outer tub 22 reduces the amount of heat that the heat generating component 10 directly transfers to the outer tub 22. In other embodiments, a heat insulating sheet 23 is provided around the outer wall of the support body 21, thereby reducing the amount of heat transferred from the heat generating component 10 to the support body 21. At the same time, the provision of the second seal 92 between the outer tube 22 and the wiring board frame 31 improves the sealing performance of the air flow path 1001, and reduces the air volume leakage. In one particular embodiment, the thermal shield 23 is a mica sheet. In yet another specific embodiment, the heat insulating sheet 23 surrounds the outer tube 22 in the axial direction of the outer tube 22. That is, the heat insulating sheet 23 is disposed around the outer tube 22 in the circumferential direction of the outer tube 22, so that the heat generating component 10 has a heat insulating effect between each position in the circumferential direction and the outer tube 22, and the effect of preventing heat dissipation is enhanced.

In yet another particular embodiment, as shown in fig. 2, 3, 5, 7 and 8, the second seal 92 is a sealing ring. The end of the outer cylinder 22 away from the air outlet 201 of the air supply channel 1001 is provided with a slot 221, and the second sealing member 92 is accommodated in the slot 221. The end of the circuit board frame 31 facing the air outlet 201 is provided with a cutting 311, and the cutting 311 is inserted into the slot 221 and is pressed against the second sealing member 92. Further, a locking arm 222 is provided on the outer wall of the outer tube 22 so as to extend in the axial direction, and the locking arm 222 is provided with a locking hole 2221. Correspondingly, the outer wall of the circuit board frame 31 is radially outwards provided with a rear clamping protrusion 312, and the clamping protrusion 312 can be clamped into the clamping hole 2221, so that the connection reliability of the outer barrel 22 and the circuit board frame 31 is further improved. The number of the clamping arms 222 is one-to-one corresponding to the number of the clamping protrusions 312, so that the stress balance is improved.

As shown in fig. 2 and 3, in some embodiments, the hair care appliance further includes a handle 40 connected to the main body 1000 and a switch assembly 42 mounted to the handle 40, the handle 40 is configured with an air intake duct 41 communicating with the air intake 315 of the air supply duct 1001 and a mounting cavity 3004 isolated from the air intake duct 41, the switch assembly 42 is at least partially assembled in the mounting cavity 3004, and the switch assembly 42 is electrically connected to the wire control assembly 32. The handle 40 is in sealing connection with the whole machine body 1000.

In particular, the handle 40 is provided to be easily held by a user for a hair drying operation. The switch assembly 42 is provided to facilitate user control of the hair care appliance on and off, and also to cooperate with the touch assembly 2001 to adjust the magnitude of the wind after opening and the use of hot and cold air. The handle 40 is provided with an air inlet channel 41, and the air inlet channel 41 has an air inlet 44 provided on the handle 40. A motor 43 is disposed in the handle 40, and the motor 43 is electrically connected to the circuit board 325 through a wire. The switch assembly 42 is driven by the motor 43 controlled by the circuit board 325, and air flow in the external environment enters from the air inlet 44 on the handle 40 under the action of the air suction power of the hair care device, is conveyed to the air supply channel 1001 on the whole machine body 1000 along the air inlet channel 41, and is then sent out from the air outlet 201 of the air supply channel 1001 for drying hair. Of course, in use, the heat generating module 10 does not necessarily have to operate, and only the air flow in the external environment may be converted into the air flow flowing at a high speed through the air supply duct 1001. The use of the heat generating component 10 may be controlled by the touch component 2001. The button portion of the switch assembly 42 protrudes out of the mounting cavity 3004 at a location on the handle 40 for mounting the switch assembly 42 for easy operation by a user. By providing the installation cavity 3004 isolated from the air inlet channel 41, the switch assembly 42 is assembled, and meanwhile, the isolation between a circuit in the switch assembly 42 and air flow in the air inlet channel 41 is realized, so that the interaction between the circuit and the air flow in the air inlet channel 41 is reduced.

As shown in fig. 2, 3, and 5, in some embodiments, the handle 40 includes a tunnel housing 2006 and a handle housing 2003 covering the outside of the tunnel housing 2006, with a mounting cavity 3004 configured between the handle housing 2003 and the tunnel housing 2006. Specifically, the switch assembly 42 may be assembled by recessing the air duct housing 2006 inwardly on the air duct housing 2006 at a position where the switch assembly 42 is mounted, thereby forming a mounting cavity 3004 between an inner wall of the handle housing 2003 and an outer wall of the air duct housing 2006. With this arrangement, the diameter of the handle 40 can be reduced, and the user can hold it more easily. In which the mounting cavity 3004 is disposed as much as possible at a location where the handle 40 faces the heat generating component 10 or is relatively greatly affected by heat. In a specific embodiment, the installation cavity 3004 is communicated with the circuit cavity 3001, and when the circuit cavity 3001 is communicated with the heat insulation cavity 3003, the installation cavity 3004, the circuit cavity 3001 and the heat insulation cavity 3003 are sequentially communicated, so that on the basis of meeting the requirement of the above-mentioned isolation air duct and the circuit, the purpose of reducing heat and air leakage can be achieved through three communicated cavities around the periphery. The three chambers (the mounting chamber 3004, the insulating chamber 3003, and the circuit chamber 3001) were not dry hair and were not set with wind.

As shown in fig. 2, 3, and 5, in some embodiments, the handle housing 2003 mates with the complete machine housing 2000. Specifically, an extending casing section 2004 extending radially is provided on the whole casing 2000 at the air inlet 315 of the air supply passage 1001, and the front end of the handle 40 extends into the extending casing section 2004. A mounting gap is provided between the handle housing 2003 and the air duct housing 2006, in which the extension housing section 2004 is inserted and can be fastened with screws. It can be understood that the whole machine body 1000, the circuit board frame 31, the wire control assembly 32, the heating assembly 10 and the whole machine shell 2000 covered on the outer side of the whole machine body 1000 together form the head 1 of the hair care device. Meanwhile, the handle 40, the switch assembly 42, the motor 43, the power cord of the motor 43 connected to the tail side of the handle 40, and the like together constitute the tail 2 of the hair care device. It should be noted that, in the present embodiment, as shown in fig. 1 to 3, the axial direction of the cylinder 20 and the axial direction of the complete machine body 1000 are used, the radial direction of the cylinder 20 is the radial direction of the complete machine body 1000, and the handle 40 extends along the radial direction of the cylinder 20. Thus, a hair care appliance is formed which approximates a "7" shape.

As shown in fig. 2, 3 and 7, in some embodiments, a third seal 93 is pressed at the air inlet 315, and the third seal 93 is used to seal the air duct housing 2006 with the circuit board rack 31. Specifically, the provision of the third seal 93 improves the sealing property at the junction between the air flow path 1001 and the air intake path 41, and reduces the air volume leakage. The third sealing member 93 is a special sealing ring, and is adapted to the air inlet 315 on the circuit board frame 31. The third sealing member 93 is adhered to the edge of the air inlet 315 on the circuit board frame 31, and the front end of the air channel shell 2006 in the handle 40 is pressed against the third sealing member 93 and fixed with the circuit board frame 31, and meanwhile, the handle shell 2003 is fixedly connected with the whole machine shell 2000, so that sealing connection is realized.

It is apparent that the above examples of the present application are merely illustrative examples of the present application and are not limiting of the embodiments of the present application. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the application. It is not necessary here nor is it exhaustive of all embodiments. Any modifications, equivalent substitutions, improvements, etc. that fall within the spirit and principles of the present application are intended to be included within the scope of the claims of this application.

Claims

1. The hair care device comprises a complete machine body, a heating component, an air inlet and an air outlet, and is characterized in that the complete machine body comprises a heating cavity, the heating component is arranged in the heating cavity, and when the hair care device operates, air flow entering from the air inlet flows to the air outlet through the heating component; the heat generating component includes:

a first layer heating element;

2. The hair care appliance of claim 1 wherein said second layer heat generating element comprises a plurality of intermediate region heat generating segments located at intermediate regions of any adjacent two of said second support elements; the heat insulating member is capable of separating the intermediate region heating section from the first layer heating member.

3. The hair care appliance of claim 1, wherein the heat dissipation channel is at least one hole provided in the heat insulating member, the first communication area is an area of the first layer heat generating member corresponding to the at least one hole, and the second communication area is an area of the second layer heat generating member corresponding to the at least one hole.

4. A hair care device according to claim 3, wherein the heat insulating member comprises a separation region and a heat dissipation region, the separation region being a region of the heat insulating member corresponding to the plurality of intermediate region heat generating segments, the heat dissipation region being a region of the heat insulating member other than the separation region, the at least one aperture comprising at least one first aperture, the heat dissipation region being provided with the at least one first aperture, the separation region being capable of separating the intermediate region heat generating segments from the first layer heat generating member.

5. The hair care appliance of claim 4, wherein said at least one aperture further comprises at least one second aperture, said at least one second aperture being disposed in said separation region, said at least one second aperture being capable of separating said intermediate region heat generating segment from said first layer heat generating element.

Preferably, when the heating wire forming the second heating element is in a wave shape, the minimum aperture of the at least one second hole is smaller than the length of the trough section of the heat insulating member on the middle region heating section.

Preferably, a plurality of first holes are arranged on the heat dissipation area, and the plurality of first holes are uniformly distributed in the heat dissipation area; the separation area is provided with a plurality of second holes which are uniformly distributed in the separation area.

6. A hair care appliance according to claim 3, wherein the at least one aperture comprises at least one third aperture capable of separating the intermediate region heat generating segment from the first layer heat generating element, the first communication region being a region of the first layer heat generating element corresponding to the at least one third aperture, the second communication region being a region of the second layer heat generating element corresponding to the at least one third aperture.

Preferably, when the heating wire forming the second heating element is in a wave shape, the minimum aperture of the at least one third hole is smaller than the length of the trough section of the heat insulating member on the middle region heating section.

7. The hair care appliance of claim 6, wherein the thermal shield is provided with a plurality of third apertures, the plurality of third apertures being evenly distributed across the thermal shield.

8. The hair care appliance of claim 1, wherein the thermal shield comprises: the heat dissipation channel comprises a region between two adjacent sub-heat insulators. Preferably, the second layer heating element comprises a plurality of middle area heating sections positioned at middle areas of any two adjacent second supporting elements; each sub-heat shield is positioned between each of the intermediate region heat generating sections and the first layer heat generating member.

9. The hair care appliance of claim 1, wherein the plurality of first supports are disposed corresponding to the plurality of intermediate zone heat generating segments.

10. The hair care appliance of claim 1, wherein the heat generating component further comprises: a support body; the plurality of first supporting pieces are arranged on the supporting main body at intervals by taking the supporting main body as a center; the plurality of second supporting pieces are arranged on the supporting body at intervals by taking the supporting body as a center.