Wearable air blowing device

Abstract

A wearable blowing device comprises: a housing forming a cavity; the supporting frame divides the cavity into a first mounting space and a second mounting space; the refrigeration assembly comprises a refrigeration part, a cold conduction part and a heat dissipation part; the refrigerating part is fixed to the supporting frame, the cold guide part is located in the first installation space and is in heat conduction connection with the refrigerating part, and the heat dissipation part is located in the second installation space and is in heat conduction connection with the refrigerating part. The fan is arranged in the cavity, the fan comprises a first fan blade group and a second fan blade group, the first fan blade group is arranged corresponding to one airflow inlet in the first mounting space and the second mounting space, and the second fan blade group is arranged corresponding to the other airflow inlet. The fan is arranged to comprise the first fan blade set and the second fan blade set, the two fan blade sets can generate two air flows which blow the cold conducting piece and the heat dissipation piece respectively, so that cold air blowing and heat dissipation can be achieved at the same time through one fan, the product structure is simpler, and the manufacturing cost can be effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of human body temperature regulation, in particular to a wearable hair dryer. Background Art

[0002] In daily life, in order to meet people's needs for cooling down, various fans have emerged, and people are using more and more wearable fans. In order to achieve the cooling effect of fans blowing out cold air, existing wearable fans are equipped with refrigeration parts to cool down the air blown out by the fans, so as to achieve the cooling effect of blowing out cold air to cool down the human body.

[0003] However, due to the nature of the refrigeration component, it will generate heat while cooling, so it needs to be dissipated. Existing wearable fans usually set a heat sink at the hot end of the refrigeration component, and take away the heat of the heat sink by setting a heat dissipation fan. Blowing cold air requires setting a cooling guide, and a blowing fan needs to be set to generate airflow that passes through the cooling guide to cool down and blow out cold air. Therefore, existing wearable fans need to be equipped with multiple fans to blow cold air and dissipate heat separately, which has a complex structure and high manufacturing cost. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a wearable hair dryer. By configuring the fan to include a first blade group and a second blade group, the two blade groups can generate two airflows to blow out cold air and dissipate heat respectively, so that one fan can be used to blow cold air and dissipate heat at the same time, making the product structure simpler and effectively saving manufacturing costs.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A wearable hair-drying device comprises: a shell having a cavity formed therein; a support frame, the support frame being arranged in the cavity to separate the cavity into a first installation space and a second installation space; a refrigeration assembly, the refrigeration assembly comprising a refrigeration element, a cooling element and a heat dissipation element; the refrigeration element is fixed to the support frame, the cooling element is located in the first installation space and is thermally connected to the refrigeration element, and the heat dissipation element is located in the second installation space and is thermally connected to the refrigeration element; a fan, the fan being arranged in the cavity, the fan comprising a first blade group and a second blade group, the first blade group being arranged corresponding to one air flow inlet in the first installation space and the second installation space, and the second blade group being arranged corresponding to the other air flow inlet in the first installation space and the second installation space.

[0007] As a further improvement of the above technical solution, the first fan blade group includes a plurality of first fan blades arranged along a circumferential direction, and the second fan blade group includes a plurality of second fan blades arranged along a circumferential direction.

[0008] As a further improvement of the above technical solution, the radial width dimension of the first blade is smaller than the radial width dimension of the second blade; and / or the axial height dimension of the first blade is smaller than the axial height dimension of the second blade.

[0009] As a further improvement of the above technical solution, the fan further includes a partition plate, which is annular and arranged between the first blade group and the second blade group.

[0010] As a further improvement of the above technical solution, the radial outer edge of the first blade is farther away from the radial outer edge of the partition plate than the radial outer edge of the second blade.

[0011] As a further improvement of the above technical solution, the radial inner edges of the first fan blade and the second fan blade are respectively flush with the radial inner edge of the partition plate, the radial outer edge of the second fan blade is flush with the radial outer edge of the partition plate, and / or the radial outer edge of the first fan blade and the radial outer edge of the second fan blade are staggered with each other in the circumferential direction.

[0012] As a further improvement of the above technical solution, the fan also includes a mounting shell, in which a driving assembly for driving the fan to rotate is provided, the mounting shell is located at the center of the partition plate, and the side wall of the mounting shell is connected to the partition plate through spokes; the thickness of the first fan blade close to the mounting shell is smaller than the thickness of the first fan blade away from the mounting shell, and / or the thickness of the second fan blade close to the mounting shell is smaller than the thickness of the second fan blade away from the mounting shell.

[0013] As a further improvement of the above technical solution, the radial inner edge of the first fan blade is an arc surface, and the radial outer edge is a plane; and / or the radial inner edge of the second fan blade is an arc surface, and the radial outer edge is a plane.

[0014] As a further improvement of the above technical solution, the shell includes a first shell and a second shell connected to each other, the first shell and the second shell enclose the cavity, and the first shell and the second shell are both provided with air inlets, the first fan blade group corresponds to the air inlet on the first shell, and the second fan blade group corresponds to the air inlet on the second shell.

[0015] As a further improvement of the above technical solution, the shell is arranged to form a wearing space, the second shell is located on the side of the first shell away from the wearing space, the second shell is provided with a heat dissipation port, the second fan blade group generates an airflow which passes through the heat dissipation element and flows out from the heat dissipation port; the first shell and / or the second shell is provided with an air outlet, the first fan blade group generates an airflow which passes through the cooling element and flows out from the air outlet; the support frame includes a support plate and side plates located on both sides of the support plate, the refrigeration element is arranged on the support plate, and the support plate is bent.

[0016] The beneficial effect of the utility model is as follows: a support frame is arranged in the cavity to form a first installation space and a second installation space, and a cooling member and a heat dissipation member are installed respectively. The cooling member is arranged on the support frame between the cooling member and the heat dissipation member and is thermally connected to the two respectively. The fan comprises a first blade group and a second blade group, and the two blade groups can generate two airflows that blow to the cooling member and the heat dissipation member respectively. By setting up one fan, heat dissipation and cooling can be achieved simultaneously, without setting up two fans, thereby saving equipment cost and saving installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the assembly of the wearable hair dryer of the utility model;

[0019] Figure 2 It is an exploded schematic diagram of the wearable hair dryer of the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of the wearable hair dryer of the utility model;

[0021] Figure 4 It is an exploded schematic diagram of the refrigeration assembly and the support frame of the utility model;

[0022] Figure 5 This is a three-dimensional schematic diagram of the fan of the utility model. Figure 1 ;

[0023] Figure 6 This is a three-dimensional schematic diagram of the fan of the utility model. Figure 2 ;

[0024] Figure 7 yes Figure 6 Enlarged schematic diagram at point A in the middle.

[0025] Explanation of the reference numerals: 1-shell; 11-first shell; 111-installing vortex casing; 112-guide plate; 12-second shell; 13-air inlet; 14-air outlet; 15-heat dissipation outlet; 2-support frame; 21-partition plate; 211-installing port; 22-side plate; 23-guide member; 231-first guide end; 232-second guide end; 3-refrigeration component; 31-refrigeration member; 32-heat dissipation member; 33-cooling member; 4-fan; 41-first blade group; 411-first blade; 42-second blade group; 421-second blade; 43-partition plate; 431-installing shell; 01-first installation space; 02-second installation space; 101-first wearing arm; 102-second wearing arm; 103-connecting part; 104-wearing space. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0027] Reference Figures 1 to 3 The utility model provides a wearable hair dryer, comprising a shell 1, wherein a cavity is formed in the shell 1; a support frame 2, a refrigeration component 3 and a fan 4 are arranged in the cavity.

[0028] The support frame 2 separates the cavity into a first installation space 01 and a second installation space 02, and two winds are generated in the cavity through the cooperation of the fan 4, which blow toward the first installation space 01 and the second installation space 02 respectively. The refrigeration assembly 3 includes a refrigeration component 31, a cooling component 33 and a heat sink 32. The refrigeration component 31 is used to generate cold energy through the cooling component 33, and the heat sink 32 is used to conduct the heat generated by the refrigeration component 31.

[0029] The refrigeration component 31 is fixed on the support frame 2, the cooling member 33 is connected to the cold end of the refrigeration component 31 by thermal conduction, and the cooling member 33 is located in the first installation space 01, so that the wind in the first installation space 01 can pass through the cooling member 33. The heat sink 32 is connected to the hot end of the refrigeration component 31 by thermal conduction, and the heat sink 32 is located in the second installation space 02, so that the wind in the second installation space 02 can pass through the heat sink 32.

[0030] The fan 4 is provided with a first blade group 41 and a second blade group 42. The first blade group 41 is arranged corresponding to the air flow inlet of the first installation space 01, and the air flow generated by the first blade group 41 blows toward the first installation space 01; the second blade group 42 is arranged corresponding to the air flow inlet of the second installation space 02, and the air flow generated by the second blade group 42 blows toward the second installation space 02.

[0031] Similarly, the first fan blade group 41 can also be set corresponding to the air flow inlet of the second installation space 02, and the air flow generated by the first fan blade group 41 blows toward the second installation space 02; the second fan blade group 42 is set corresponding to the air flow inlet of the first installation space 01, and the air flow generated by the second fan blade group 42 blows toward the first installation space 01.

[0032] The cavity is divided into a first installation space 01 and a second installation space 02, on which the cooling member 33 and the heat dissipation member 32 are installed respectively. The first blade group 41 and the second blade group 42 on the fan 4 respectively generate two airflows that blow toward the two spaces. The heat dissipation and cooling are achieved simultaneously by one fan 4. There is no need to set up two fans 4, thereby saving equipment costs and installation space.

[0033] Please refer to Figure 2 , Figure 3 , Figure 5 as well as Figure 6 In the present utility model, the first blade group 41 is arranged corresponding to the airflow inlet of the first installation space 01, and the second blade group 42 is arranged corresponding to the airflow inlet of the second installation space 02. The airflow generated by the first blade group 41 blows toward the cooling member 33, and the airflow generated by the second blade group 42 blows toward the heat sink 32. The first blade group 41 includes a plurality of first blades 411, and the second blade group 42 includes a plurality of second blades 421, and the first blades 411 and the second blades 421 are arranged along the circumferential direction of the fan.

[0034] The radial width of the first blade 411 is smaller than the radial width of the second blade 421, so that the wind force of the first blade group 41 blowing toward the cooling element 33 will not be too strong, and the wind will not blow rapidly toward the cooling element 33, so that the wind can fully contact with the cooling element 33 for conduction and cooling, and ensure that the wind blown out after the cooling element 33 can be effectively cooled. The wind of the second blade group 42 blowing toward the heat sink 32 is relatively strong, so that the heat on the heat sink 32 can be taken away in time, so as to avoid affecting the cooling effect of the cooling element 31.

[0035] By adjusting the blade sizes of the first blade group 41 and the second blade group 42, the required air volume size / ratio of the corresponding cooling element 33 and the heat dissipation element 32 can be adjusted as needed, thereby achieving the effect of adjusting the required air volume of both at the same time. Compared with the existing method of using two fans for heat dissipation and cooling respectively, it is necessary to adjust the control circuits of the two fans separately when adjusting the air volume, which simplifies the control cost of air volume adjustment.

[0036] As another embodiment, in order to make the air volume blown out by the first fan blade group 41 and the second fan blade group 42 different, the axial height dimension of the first fan blade 411 can also be set to be smaller than the axial height dimension of the second fan blade 421, or the axial height and radial width dimensions of the first fan blade 411 can be simultaneously smaller than the axial height and radial width dimensions of the second fan blade 421, so that the first fan blade group 41 and the second fan blade group 42 form wind areas of different sizes, thereby achieving different air volumes.

[0037] The fan 4 further comprises a partition plate 43 which can separate the two groups of blades of the fan 4. The partition plate 43 is arranged between the first blade group 41 and the second blade group 42. When the fan 4 rotates, the partition plate 43 blocks the two airflows generated by the fan 4 from affecting each other.

[0038] The partition plate 43 forms the first blade group 41 and the second blade group 42 on both sides of the support frame 2 respectively, so that the first blade group 41 corresponds to the first installation space 01, and the second blade group 42 corresponds to the second installation space 02.

[0039] Furthermore, the first blade 411 and the second blade 421 are arranged on the surfaces of both sides of the partition plate 43, and the partition plate 43 is annular, and the first blade 411 and the second blade 421 are distributed on the partition plate 43 along the circumferential direction of the partition plate 43. The radial inner edge is close to the center of the fan 4, and the radial outer edge is close to the outer edge of the fan 4. Among them, the distance between the radial outer edge of the first blade 411 and the radial outer edge of the partition plate 43 is greater than the distance between the radial outer edge of the second blade 421 and the radial outer edge of the partition plate 43, and the radial outer edge of the second blade 421 is flush with the radial outer edge of the partition plate 43. In addition, the radial inner edges of the first blade 411 and the second blade 421 are flush with the radial inner edges of the partition plate 43, respectively, so the area size of the first blade 411 is smaller than the area size of the second blade 421.

[0040] By making the first blade 411 and the second blade 421 different in size, two different air volumes are generated. Importantly, the wind blowing toward the first installation space 01 is less, ensuring that all wind can be cooled, and the wind blowing toward the second installation space 02 is more, ensuring that the heat of the heat sink 32 is dissipated in time.

[0041] The radial outer edge of the first blade 411 and the radial outer edge of the second blade 421 are staggered in the circumferential direction, so that the blade gaps between the first blade group 41 and the second blade group 42 are staggered, thereby reducing mutual interference and vibration between the blades.

[0042] Furthermore, a mounting shell 431 is provided in the middle of the annular partition plate 43, and a driving assembly for driving the fan 4 is provided in the mounting shell 431. The driving assembly is used to drive the fan to rotate and generate air volume. In addition, the mounting shell 431 is located at the center of the partition plate 43, and the side wall of the mounting shell 431 is connected to the partition plate 43 through spokes. The driving assembly drives the mounting shell 431 to drive the partition plate 43 to rotate, so that the fan blades arranged on the partition plate 43 rotate together to generate air volume.

[0043] The thickness of the first blade 411 on the side of the partition plate 42 close to the mounting shell 431 is less than the thickness of the first blade on the side away from the mounting shell 431, and the side away from the mounting shell 431 is the wind outlet side. The blades on the wind outlet side are thicker, and the wind outlet side fanning is more powerful. The fan is more stable and reliable when rotating at high speed, so that the wind is pushed more fully and the generated airflow is stronger. Similarly, the thickness of the second blade 421 on the side close to the mounting shell 431 is also less than the thickness of the second blade 421 on the side away from the mounting shell 431, and the same wind outlet effect as the first blade 411 is achieved.

[0044] Moreover, the radial inner edge of the first blade 411 is an arc surface, and the radial outer edge is a plane. The airflow is from the radial outer edge as the wind outlet side, and the radial inner edge is the wind inlet side. The radial inner edge is an arc surface, which facilitates the airflow to slide smoothly into the blade and be pushed out from the wind outlet side. Similarly, the radial inner edge of the second blade 421 is an arc surface, and the radial outer edge is a plane, which achieves the same wind outlet effect as the second blade 421.

[0045] Please continue to refer to Figures 1 to 3 The housing 1 includes a first housing 11 and a second housing 12, and a cavity is formed by enclosing the first housing 11 and the second housing 12. Air inlets 13 are provided on the first housing 11 and the second housing 12, and the two sides of the fan 4 correspond to the air inlets 13 on the first housing 11 and the second housing 12, respectively. The air inlet 13 connects the cavity with the external space, so that the fan 4 can take in air to generate airflow.

[0046] Furthermore, the air inlet 13 on the first shell 11 corresponds to the air inlet 13 on the second shell 12, and the two sides of the fan 4 correspond to the positions of the air inlets 13 of the first shell 11 and the second shell 12 respectively, so that the first fan blade group 41 and the second fan blade group 42 can take in air from different air inlets 13, thereby improving the ventilation effect.

[0047] In order to facilitate the fan 4 to be more stably arranged in the cavity, a mounting volute 111 is provided on the side of the first housing 11 facing the cavity, and the fan 4 is arranged in the mounting volute 111. In addition, an opening is provided on the side of the mounting volute 111 close to the support frame 2, so that the space in the mounting volute 111 can be connected with the first mounting space 01 and the second mounting space 02, and the airflow generated by the fan 4 can flow to the first mounting space 01 and the second mounting space 02.

[0048] A guide plate 112 is also provided on the installation volute 111. The guide plate 112 is provided at the opening of the installation volute 111, that is, the guide plate 112 is provided on the side of the installation volute 111 close to the first installation space 01 and the second installation space 02. The guide plates 112 are provided corresponding to the first installation space 01 and the second installation space 02. The guide plates 112 guide the airflow generated by the fan 4 into the first installation space 01 and the second installation space 02, so that the flow direction of the airflow can be more concentrated, reducing the loss and waste of air volume.

[0049] Preferably, after the fan 4 generates airflow through the air inlet 13, it needs to be blown out from the air outlet 14. An air outlet 14 is provided on the housing 1, and the airflow generated by the first fan blade group 41 in the fan 4 will be blown out from the air outlet 14 after passing through the cooling member 33, so as to achieve a cooling effect on the human body. The air outlet 14 is provided on the first housing 11, connecting the first installation space 01 and the external space, and the cooling member 33 is in the first installation space 01, so that the airflow after passing through the cooling member 33 can be discharged from the first installation space 01. Preferably, the air outlet 14 is provided on the side of the first housing 11 coplanar with the second housing 12, so that the air outlet 14 can be prevented from being blocked by the side worn by the human body in the wearable hair-drying device. As another practicable method, the air outlet 14 can be provided at the connection between the first housing 11 and the second housing 12, or provided on the second housing 12, and similarly provided on the side coplanar with the two, so as to prevent the air outlet 14 from being blocked when worn by the human body.

[0050] The air outlet 14 can discharge the airflow passing through the first installation space 01 and blow it toward the human body, and the first installation space 01 and the second installation space 02 are separated by components such as the support frame 2, so it is necessary to set a heat dissipation outlet 15 for exhaust air on the second shell 12. The heat dissipation outlet 15 is set on the side of the second shell 12 away from the first shell 11, and the airflow after the second fan blade group 42 passes through the heat dissipation element 32 is discharged from the heat dissipation outlet 15 on the second shell 12. The first shell 11 faces the human body, and the heat dissipation outlet 15 is set on the side of the second shell 12 away from the first shell 11 to prevent the hot airflow from blowing toward the human body.

[0051] Please refer to Figure 3 and Figure 4The support frame 2 is arranged at the connection between the first shell 11 and the second shell 12. The first shell 11 and the support frame 2 enclose a first installation space 01, and the second shell 12 and the support frame 2 enclose a second installation space 02. The first installation space 01 is isolated from the second installation space 02 by the support frame 2 and the refrigeration component 3. The setting of the support frame 2 can make the structure of the refrigeration component 3 more stable and strong, and avoid interference caused by the internal airflow.

[0052] The support frame 2 includes a support plate 21 and two side plates 22. The support plate 21 divides the cavity into a first installation space 01 and a second installation space 02. The side plates 22 are perpendicular to the support plate 21, are arranged on both long sides of the support plate 21, and extend along the length direction of the support plate 21. The refrigeration assembly 3 arranged on the support frame 2 is wrapped up and down for easy installation and fixation.

[0053] Preferably, a mounting opening 211 is provided on the support plate 21, and the refrigeration component 31 is arranged at the mounting opening 211, the cold end of the refrigeration component 31 is exposed in the first mounting space 01, and the hot end of the refrigeration component 31 is exposed in the second mounting space 02. The cooling member 33 is fixed on the support plate 21, and is connected to the cold end of the refrigeration component 31 through a heat conduction medium; the heat dissipation component 32 is also fixed on the support plate 21, and is connected to the hot end of the refrigeration component 31 through a heat conduction medium. The cooling member 33 and the heat dissipation component 32 are both arranged on the support frame 2, and the support frame 2 helps to optimize the path of the airflow, ensuring that the airflow in the first mounting space 01 and the second mounting space 02 passes through the cooling member 33 and the heat dissipation component 32 to transfer the temperature.

[0054] Specifically, a guide member 23 is also provided on the support plate 21. The guide member 23 is arranged on the side facing the first installation space 01, and is used to guide the wind in the first installation space 01 to blow toward the air outlet 14, thereby reducing the waste of airflow during the flow process and improving the utilization rate of the airflow. Among them, the guide member 23 is provided with a first guide end 231 and a second guide end 232. The first cold guide end 231 is arranged on the side of the support frame 2 close to the cold guide member 33 and is arranged away from the air outlet 14; the second guide end 232 is arranged on the side of the support frame 2 close to the air outlet 14 and is arranged away from the cold guide member 33. After the airflow passes through the cold guide member 33, it is guided to flow to the second guide end 232 through the first cold guide end 231 of the guide member 23, and is discharged from the air outlet 14 after approaching the air outlet 14. By setting the orientation of the guide member 23, the flow path of the airflow in the first installation space 01 can be optimized to ensure that the airflow flows to the air outlet 14 along the designed path. Furthermore, in the embodiment of the utility model, two flow guides 23 are provided to guide the flow direction of the cooling air flow in two paths.

[0055] Please refer again Figures 1 to 3The wearable hair dryer of the utility model is used to be worn on the neck of the user to blow air to the human body. The shell 1 includes a first wearing arm 101 and a second wearing arm 102. The first wearing arm 101 and the second wearing arm 102 are connected by a connecting portion 103 and enclose a wearing space 104. The user wears the device on the neck through the wearing space 104. The connecting portion 103 is a flexible part, which can adjust the size of the wearing space 104 formed between the first wearing arm 101 and the second wearing arm 102 by deformation. Of course, in other embodiments, the shell 1 may not include the connecting portion 103, and the first wearing arm 101 and the second wearing arm 102 together enclose the wearing space 104.

[0056] The first wearing arm 101 and the second wearing arm 102 are both provided with a first shell 11 and a second shell 12, and the first wearing arm 101 and the second wearing arm 102 are enclosed by two sets of the first shell 11 and the second shell 12. The first shell 11 of the first wearing arm 101 and the second wearing arm 102 is arranged on a side close to the wearing space 104, and the second shell 12 is arranged on a side away from the wearing space 104. The heat dissipation port 15 is on the second shell 12 away from the wearing space 104 to prevent hot air from blowing toward the human body.

[0057] A battery assembly is provided inside the first wearing arm 101 and the second wearing arm 102, and the battery assembly is provided at an end away from the connecting member. A mounting vortex housing 111 for the fan 4 is provided at one end of the first housing 11 close to the connecting portion 103, so that the airflow generated by the fan 4 is blown toward the side away from the connecting portion 103, thereby preventing the airflow in the two wearing arms from blowing crosswise through the connecting portion 103.

[0058] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A wearable hair dryer, characterized in that: include: A housing (1), wherein a cavity is formed in the housing (1); A support frame (2), the support frame (2) being arranged in the cavity and dividing the cavity into a first installation space (01) and a second installation space (02); A refrigeration component (3), the refrigeration component (3) comprising a refrigeration component (31), a cooling component (33) and a heat dissipation component (32); the refrigeration component (31) is fixed on the support frame (2), the cooling component (33) is located in the first installation space (01) and is thermally connected to the refrigeration component (31), and the heat dissipation component (32) is located in the second installation space (02) and is thermally connected to the refrigeration component (31); A fan (4), wherein the fan (4) is arranged in the cavity, and the fan (4) comprises a first blade group (41) and a second blade group (42), wherein the first blade group (41) is arranged corresponding to an air flow inlet in the first installation space (01) and the second installation space (02), and the second blade group (42) is arranged corresponding to another air flow inlet in the first installation space (01) and the second installation space (02).

2. The wearable hair dryer according to claim 1, characterized in that: The first fan blade group (41) includes a plurality of first fan blades (411) arranged in a circumferential direction, and the second fan blade group (42) includes a plurality of second fan blades (421) arranged in a circumferential direction.

3. The wearable hair dryer according to claim 2, characterized in that: The radial width dimension of the first fan blade (411) is smaller than the radial width dimension of the second fan blade (421); and / or the axial height dimension of the first fan blade (411) is smaller than the axial height dimension of the second fan blade (421).

4. The wearable hair dryer according to claim 2, characterized in that: The fan (4) further comprises a partition plate (43), which is annular and arranged between the first blade group (41) and the second blade group (42).

5. The wearable hair dryer according to claim 4, characterized in that: The radial outer edge of the first fan blade (411) is farther away from the radial outer edge of the partition plate (43) than the radial outer edge of the second fan blade (421).

6. The wearable hair dryer according to claim 5, characterized in that: The radial inner edges of the first fan blade (411) and the second fan blade (421) are respectively flush with the radial inner edge of the partition plate (43), the radial outer edge of the second fan blade (421) is flush with the radial outer edge of the partition plate (43), and / or the radial outer edge of the first fan blade (411) and the radial outer edge of the second fan blade (421) are staggered with each other in the circumferential direction.

7. The wearable hair dryer according to claim 4, characterized in that: The fan (4) further comprises a mounting shell (431), wherein a driving assembly for driving the fan (4) to rotate is arranged in the mounting shell (431), the mounting shell (431) is located at the center of the partition plate (43), and the side wall of the mounting shell (431) is connected to the partition plate (43) via spokes; the thickness of the first blade (411) on the side close to the mounting shell (431) is smaller than the thickness of the first blade (411) on the side away from the mounting shell (431), and / or the thickness of the second blade (421) on the side close to the mounting shell (431) is smaller than the thickness of the second blade (421) on the side away from the mounting shell (431).

8. The wearable hair dryer according to claim 2, characterized in that: The radial inner edge of the first fan blade (411) is an arc surface, and the radial outer edge is a plane; and / or the radial inner edge of the second fan blade (421) is an arc surface, and the radial outer edge is a plane.

9. The wearable hair dryer according to any one of claims 1 to 8, characterized in that: The shell (1) comprises a first shell (11) and a second shell (12) which are connected to each other, the first shell (11) and the second shell (12) enclose the cavity, the first shell (11) and the second shell (12) are both provided with an air inlet (13), the first fan blade group (41) corresponds to the air inlet (13) on the first shell (11), and the second fan blade group (42) corresponds to the air inlet (13) on the second shell (12).

10. The wearable hair dryer according to claim 9, characterized in that: The shell (1) is surrounded by a wearing space (104); the second shell (12) is located on a side of the first shell (11) away from the wearing space (104); a heat dissipation port (15) is provided on the second shell (12); the airflow generated by the second fan blade group (42) passes through the heat dissipation element (32) and flows out from the heat dissipation port (15); an air outlet (14) is provided on the first shell (11) and / or the second shell (12); the airflow generated by the first fan blade group (41) passes through the cooling element (33) and flows out from the air outlet (14); the support frame (2) comprises a support plate (21) and side plates (22) located on both sides of the support plate (21); the cooling element (31) is arranged on the support plate (21); and the support plate (21) is bent.

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