Hair care apparatus

Abstract

The present application discloses a hair care apparatus, comprising an air barrel, a handle and a rotating assembly, wherein the handle is rotatably connected to the air barrel by means of the rotating assembly, the handle has a first position and a second position of being fitted to the rotating assembly and a third position arranged between the first position and the second position, the extension direction of the handle in the first position is opposite to the extension direction of the handle in the second position, and the handle in the third position and the air barrel are arranged at an angle. According to the hair care apparatus disclosed in the present application, the handle can be switched among the first position, the second position, and the third position by means of the rotating assembly, and the air barrel and the handle can be adjusted in position within the range of 0°-180°. Thus, the multi-angle requirements of a relative position between the air barrel and the handle in the use process of the hair care apparatus are satisfied, an applicable range of the hair care apparatus is provided, and the problem in the prior art that hair care apparatuses cannot satisfy the requirements of hair blowing and hair dressing simultaneously during use is solved.

Description

Hair care equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on November 2, 2023, with application number 202322966048.5, the entire contents of which are incorporated herein by reference.

[0003] This application claims priority to the Chinese patent application filed with the China Patent Office on November 2, 2023, with application number 202322965566.5, the entire contents of which are incorporated herein by reference.

[0004] This application claims priority to the Chinese patent application filed with the China Patent Office on April 15, 2024, with application number 202420777301.4, the entire contents of which are incorporated herein by reference.

[0005] This application claims priority to the Chinese patent application filed with the China Patent Office on April 15, 2024, with application number 202420781533.7, the entire contents of which are incorporated herein by reference.

[0006] This application claims priority to the Chinese patent application filed with the China Patent Office on April 15, 2024, with application number 202410453117.9, the entire contents of which are incorporated herein by reference.

[0007] This application claims priority to the Chinese patent application filed with the China Patent Office on April 28, 2024, with application number 202420919516.5, the entire contents of which are incorporated herein by reference. Technical Field

[0008] The present application relates to the technical field of household appliances, and in particular to a hair care device. Background Art

[0009] As a kind of hair care equipment, hair dryer is widely used in daily life and work, and one of its main functions is to dry hair.

[0010] However, current hair dryers can only be used with the handle and the hair dryer perpendicular to each other for easy hand-held use. Some hair dryers also have foldable handles for easy storage. In practice, hair drying only works when the handle and the hair dryer are perpendicular to each other. The above-mentioned prior art configurations are not suitable for specific scenarios. For example, in some hairdressing situations, the handle and the hair dryer need to be switched between multiple positions. Current hair dryers that only have the handle perpendicular to the hair dryer cannot meet the needs of multiple scenarios.

[0011] Therefore, it is necessary to improve the prior art to overcome the above defects.

[0012] Summary of the Invention

[0013] The present application provides a hair care device, which includes a hair dryer; a handle; and a rotating assembly, wherein the handle is rotatably connected to the hair dryer via the rotating assembly, and the handle has a first position, a second position, and a third position arranged between the first and second positions; the angle between the axial direction of the handle when in the first position and the axial direction of the handle when in the second position is an obtuse angle or a straight angle; when the handle is in the third position, the angle between the axial direction of the handle and the axial direction of the handle when in the first position or the axial direction of the handle when in the second position is an acute angle or a right angle.

[0014] Optionally, when the handle is in the first position or the second position, the axial direction of the handle is parallel to the axial direction of the hair dryer; and / or when the handle is in the third position, the axial direction of the handle is perpendicular to the axial direction of the hair dryer.

[0015] Optionally, when the handle is in the second position, the hair care device is adapted to be connected to a curling attachment.

[0016] Optionally, the ratio of the diameter D1 of the outer wall of the air duct to the length L1 of the air duct is in the range of 0.22 to 0.43.

[0017] Optionally, D1 is less than or equal to 60 mm, and L1 is less than or equal to 180 mm.

[0018] Optionally, the diameter D2 of the outer wall of the handle is less than or equal to 50 mm, and the length L2 of the handle is less than or equal to 180 mm.

[0019] Optionally, when the handle is in the second position, a distance L3 between the projection of the air outlet endpoint of the air duct and the top endpoint of the handle on the horizontal plane is between 90-110 mm.

[0020] Optionally, when the handle is in the second position, the distance L4 between the projection of the air inlet end point of the air duct and the tail end point of the handle on the horizontal plane is greater than or equal to 70 mm, so as to ensure that the user can hold the handle when the handle is in the second position.

[0021] Optionally, when the handle is in the second position, the axis of the handle is parallel to the axis of the air cylinder, and the distance between the two axes is less than or equal to 55 mm. The distance between the two axes satisfies the requirement of being less than 55 mm.

[0022] Optionally, the rotating assembly includes a main body, the first end of the main body is fixedly connected to the wind tube; a transmission part, the main body is rotatably connected to the transmission part, the second end of the main body has a circular groove structure, at least a part of the transmission part is rotatably arranged inside the circular groove structure, and the transmission part is fixedly connected to the handle.

[0023] Optionally, the rotating assembly further includes a limiting structure, the limiting structure includes a limiting member, and the limiting member defines a first clamping position, a second clamping position and a third clamping position to correspond to the first position, the second position and the third position of the handle respectively.

[0024] Optionally, the limiting member includes a first limiting member and a second limiting member that cooperate with each other in limiting. The first limiting member is arranged on the inner wall surface of the circular groove structure, and the second limiting member is arranged on the transmission part. Along the circumference of the circular groove structure, there are at least three first limiting members, and the second limiting member is arranged in cooperation with the first limiting member.

[0025] Optionally, the handle includes a first shell and a second shell that are detachably connected, and the first shell and the second shell form an installation cavity toward the first end of the hair dryer, at least a portion of the second end of the main body is accommodated inside the installation cavity, and at least a portion of the transmission part is drivingly connected to the second shell.

[0026] Optionally, the transmission part includes a transmission bracket, which is drivingly connected to the second shell; a shift ring, which is arranged on the side of the transmission bracket away from the second shell, and is rotatably arranged inside the circular groove structure. A second limit member is provided on the outer peripheral surface of the shift ring, and the transmission bracket is drivingly connected to the shift ring.

[0027] Optionally, the main body has a through hole, the first shell has a driving shaft extending toward the second shell, and the driving shaft passes through the through hole and is drivingly connected to the transmission part.

[0028] Optionally, the end of the drive shaft away from the first housing has a first stopper extending circumferentially, and the transmission portion has a second stopper extending circumferentially along the drive shaft, and the first stopper and the second stopper are drivingly engaged.

[0029] Optionally, the hair care device further comprises a fastener, and the transmission part is fixedly connected to the end of the driving shaft away from the first housing via the fastener.

[0030] Optionally, the transmission part includes a transmission bracket and a shift ring, and the transmission bracket and the shift ring are drivingly connected so that the transmission bracket and the shift ring rotate synchronously.

[0031] Optionally, the hair care device further comprises a support member, which is arranged on the inner circumference of the dial ring.

[0032] Optionally, the rotating assembly also includes a limiting structure, the limiting structure includes a limiting member, the limiting member defines a first clamping position, a second clamping position and a third clamping position to correspond to the first position, the second position and the third position of the handle respectively; the limiting member includes a first limiting member and a second limiting member that cooperate with each other, the first limiting member is arranged on the inner circumferential wall surface of the circular groove structure, the second limiting member is arranged on the transmission part, and at least three first limiting members are arranged along the circumference of the circular groove structure, and the second limiting member is arranged in cooperation with the first limiting member; the handle includes a first shell and a second shell that are detachably connected, the first shell and the second shell form an installation cavity toward the first end of the hair dryer, at least a part of the second end of the main body is accommodated inside the installation cavity, and at least a part of the transmission part is drivingly connected to the second shell; the transmission bracket is drivingly connected to the second shell, the shift ring is arranged on the side of the transmission bracket away from the second shell, the shift ring is rotatably arranged inside the circular groove structure, the second limiting member is arranged on the outer circumferential surface of the shift ring, and the transmission bracket is drivingly connected to the shift ring.

[0033] The present application also provides a hair care device, which includes a hair dryer; a handle; a rotating assembly, wherein the handle is rotatably connected to the hair dryer via the rotating assembly, and the handle has at least a first position, a second position and / or a third position relative to the hair dryer; when the handle is in the third position, the axial direction of the handle is an acute angle or a right angle to the axial direction of the handle when it is in the first position; and / or when the handle is in the third position, the axial direction of the handle is an acute angle or a right angle to the axial direction of the handle when it is in the second position, the rotating assembly includes a main body and a transmission part, a first end of the main body is fixedly connected to the hair dryer; the main body is rotatably connected to the transmission part, the transmission part includes a transmission bracket and a dial ring, the transmission bracket and the dial ring are drivingly connected, and the hair care device also includes a support member, which is supported on the inner circumferential surface of the dial ring.

[0034] Optionally, the rotating assembly also includes a limiting structure, the limiting structure includes a limiting member, the limiting member defines a first clamping position, a second clamping position and a third clamping position to correspond to the first position, the second position and the third position of the handle respectively; the limiting member includes a first limiting member and a second limiting member that cooperate with each other, the first limiting member is arranged on the inner circumferential wall surface of the circular groove structure, the second limiting member is arranged on the transmission part, and at least three first limiting members are arranged along the circumference of the circular groove structure, and the second limiting member is arranged in cooperation with the first limiting member; the handle includes a first shell and a second shell that are detachably connected, the first shell and the second shell form an installation cavity toward the first end of the hair dryer, at least a part of the second end of the main body is accommodated inside the installation cavity, and at least a part of the transmission part is drivingly connected to the second shell; the transmission bracket is drivingly connected to the second shell, the shift ring is arranged on the side of the transmission bracket away from the second shell, the shift ring is rotatably arranged inside the circular groove structure, the second limiting member is arranged on the outer circumferential surface of the shift ring, and the transmission bracket is drivingly connected to the shift ring.

[0035] Optionally, the ratio of the diameter D1 of the outer wall of the air duct to the length L1 of the air duct is in the range of 0.22 to 0.43; the diameter D2 of the outer wall of the handle is less than or equal to 50 mm, and the length L2 of the handle is less than or equal to 180 mm.

[0036] Optionally, the circumference of the support member is not closed to form a gap.

[0037] Optionally, the support member provides a fastening force for the second limiting member of the limiting structure of the rotating assembly to maintain the first limiting member of the limiting structure.

[0038] Optionally, the support member is made of elastic material; and / or the support member is in a non-closed circular ring shape or a closed non-circular ring shape.

[0039] Optionally, the hair care device further comprises a protective member, a wiring space is formed between the main body of the rotating assembly and the first shell of the handle, the protective member is arranged inside the wiring space, and the protective member is used to wrap the line.

[0040] Optionally, the protective member has an avoidance channel extending along the axial direction of the main body, and the avoidance channel is used for allowing the drive shaft on the first housing to pass through.

[0041] Optionally, the protective member is made of foam material, is arranged on the main body, and is a columnar structure coaxial with the main body.

[0042] The present application also provides a rotating assembly, which includes a main body; and a transmission part, which is at least partially arranged in the main body and rotatably connected to the main body. The transmission part includes a transmission bracket, a shift ring and a support member. The transmission bracket and the shift ring are drivingly connected, and the support member is arranged on the inner circumference of the shift ring.

[0043] Optionally, the rotating assembly also includes a limiting structure, the limiting structure includes a limiting member, the limiting member defines a first clamping position and a second clamping position; the limiting member includes a first limiting member and a second limiting member that cooperate with each other, the first limiting member is arranged on the inner circumferential wall surface of the main body, the second limiting member is arranged on the transmission part, and the second limiting member is arranged in cooperation with the first limiting member.

[0044] Optionally, the support member is made of elastic material, and / or the support member is in a non-closed circular ring shape or a closed non-circular ring shape.

[0045] Optionally, the support member provides a fastening force for the second limiting member of the limiting structure of the rotating assembly to maintain the first limiting member of the limiting structure.

[0046] The present application also provides a hair care device, which includes the above-mentioned rotating assembly; a hair dryer, one end of the main body is fixedly connected to the hair dryer; and a handle, the transmission part and the handle are fixedly connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0048] FIG1 is a schematic diagram of the three-dimensional structure of a hair care device provided in an embodiment of the present application;

[0049] FIG2 is a structural diagram of the handle of the hair care device provided by an embodiment of the present application when it is in a first position;

[0050] FIG3 is a structural diagram of the hair care device provided by an embodiment of the present application when the handle is in a second position;

[0051] FIG4 is a structural diagram of the handle of the hair care device provided by an embodiment of the present application when it is in a third position;

[0052] FIG5 is a schematic diagram of the installation structure of the rotating assembly and the air duct provided in an embodiment of the present application;

[0053] FIG6 is a schematic diagram of the three-dimensional structure of a handle provided in an embodiment of the present application;

[0054] FIG7 is a side view of a handle provided in an embodiment of the present application;

[0055] FIG8 is a cross-sectional view taken along line AA in FIG7 ;

[0056] FIG9 is a schematic diagram of the three-dimensional structure of the first housing provided in an embodiment of the present application;

[0057] FIG10 is an enlarged view of point B in FIG9 ;

[0058] FIG11 is a schematic diagram of the three-dimensional structure of a transmission bracket provided in an embodiment of the present application;

[0059] FIG12 is another schematic diagram of the three-dimensional structure of the transmission bracket provided in an embodiment of the present application;

[0060] FIG13 is a schematic diagram of the three-dimensional structure of the dial ring provided in an embodiment of the present application;

[0061] FIG14 is a schematic diagram of the three-dimensional structure of a bracket provided in an embodiment of the present application;

[0062] FIG15 is a schematic diagram of the installation structure of the support member when the handle provided in the embodiment of the present application is in the third position;

[0063] FIG16 is a schematic diagram of the installation structure of the support member when the handle is in the first position according to an embodiment of the present application;

[0064] FIG17 is a schematic diagram of the installation structure of the support member when the handle is in the second position according to an embodiment of the present application;

[0065] FIG18 is a schematic diagram of the installation structure of the protective member provided in an embodiment of the present application;

[0066] FIG19 is a schematic structural diagram of a hair care device with a curling iron attached thereto according to an embodiment of the present application;

[0067] FIG20 is a schematic structural diagram of a hair care device provided in an embodiment of the present application;

[0068] FIG21 is an exploded view of a hair care device provided in an embodiment of the present application;

[0069] FIG22 is an exploded view of the hair care device provided in an embodiment of the present application from another angle;

[0070] FIG23 is a schematic structural diagram of an annular member and a second structure of a hair care device provided in an embodiment of the present application;

[0071] FIG24 is a schematic structural diagram of a hair care device according to an embodiment of the present application with the grip portion in a first position;

[0072] FIG25 is a schematic structural diagram of the hair care device provided by an embodiment of the present application when the grip portion is in the second position;

[0073] FIG26 is a schematic diagram of the three-dimensional structure of a hair care device according to an embodiment of the present application;

[0074] FIG27 is a schematic diagram of the exploded structure of the internal structure of the main body of the hair care device according to an embodiment of the present application;

[0075] FIG28 is a schematic diagram of a front cross-sectional structure of a main body according to an embodiment of the present application;

[0076] FIG29 is a partially enlarged schematic diagram of the main body of the embodiment of the present application in a front cross-sectional structure;

[0077] FIG30 is a schematic diagram of a left side cross-sectional structure of a main body according to an embodiment of the present application;

[0078] FIG31 is a partially enlarged schematic diagram of the main body of an embodiment of the present application in a front view cross-sectional structure;

[0079] FIG32 is a schematic cross-sectional view of a hair care device according to an embodiment of the present application;

[0080] FIG33 is a simplified structural diagram of the air outlet member provided in an embodiment of the present application at a first viewing angle;

[0081] FIG34 is a simplified structural diagram of the air outlet member provided in an embodiment of the present application at a second viewing angle;

[0082] FIG35 is a front view of an air outlet member provided in an embodiment of the present application;

[0083] FIG36 is a cross-sectional view taken along line AA of FIG35 ;

[0084] FIG37 is a schematic diagram of the air volume under different values ​​of r2 of the present application;

[0085] FIG38 is a schematic diagram of the air output under different values ​​of R2 of the present application;

[0086] FIG39 is a schematic diagram showing the air outlet area of ​​the air outlet member provided in an embodiment of the present application and the air outlet member in the related art when in use;

[0087] FIG40 is a diagram showing the gas flow direction when the air outlet device in the related art is in use;

[0088] FIG41 is a diagram of gas flow when the air outlet member provided in an embodiment of the present application is in use;

[0089] FIG42 is a schematic diagram of the three-dimensional structure of a hair care device provided in an embodiment of the present application;

[0090] FIG43 is a schematic diagram of the internal structure of a hair care device provided in an embodiment of the present application;

[0091] FIG44 is an enlarged view of point A in FIG2 ;

[0092] FIG45 is a schematic diagram of the internal structure of the air outlet provided in an embodiment of the present application;

[0093] FIG46 is a side view of a wind-passing structure provided in an embodiment of the present application;

[0094] FIG47 is a side view of a hair care device provided in an embodiment of the present application;

[0095] FIG48 is a cross-sectional view taken along line BB in FIG6 ;

[0096] FIG49 is a schematic diagram of the three-dimensional structure of the inner shell provided in an embodiment of the present application;

[0097] FIG50 is a schematic diagram of the installation structure of the control switch module provided in an embodiment of the present application;

[0098] FIG51 is a schematic diagram of the internal structure of the inner shell provided in an embodiment of the present application;

[0099] Figure 52 is a schematic diagram of the folded state of the hair care device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0100] As shown in Figures 1 to 19, the present application provides a hair care device, which includes a hair dryer 10, a handle 30 and a rotating assembly 20. The handle 30 is rotatably connected to the hair dryer 10 through the rotating assembly 20. The handle 30 has a first position, a second position and a third position arranged between the first position and the second position, and the angle between the axial direction of the handle 30 when the first position is in the first position and the axial direction of the handle 30 when the second position is in the second position is an obtuse angle or a straight angle. When the handle 30 is in the third position, the angle between the axial direction of the handle 30 and the axial direction of the handle 30 when the first position or the axial direction of the handle 30 when the second position is an acute angle or a right angle.

[0101] Specifically, the hair dryer 10 and handle 30 of the hair care device of the present application are switchably arranged between a first position, a second position, and a third position via a rotating assembly 20. When the hair dryer 10 and the handle 30 are in the first and second positions, their extension directions are opposite, enabling the hair dryer 10 and the handle 30 to be adjusted within a range of 0°-180°. This satisfies the need for different positions of the hair dryer 10 and the handle 30 during use of the hair care device, provides a wider range of applicability for the hair care device, and enhances the user experience. Furthermore, when the handle 30 of the present application is in the first and second positions, it can be arranged parallel to the hair dryer 10, as shown in Figures 2 and 3, to facilitate storage of the hair care device or to meet hairdressing needs, enrich the adjustable positions of the handle 30, and enhance the practicality of the hair care device.

[0102] Furthermore, when the handle 30 is in the first position, the end of the handle 30 away from the hair dryer 10 is close to the air outlet side of the hair dryer 10; when the handle 30 is in the second position, the end of the handle 30 away from the hair dryer 10 is close to the air inlet side of the hair dryer 10.

[0103] Furthermore, when the handle 30 is in the first position, the axial direction of the handle 30 is parallel to the axial direction of the hair dryer 10, and the hair care device is in a folded state, which is convenient for storing the hair care device.

[0104] Furthermore, when the handle 30 is in the second position, the axial direction of the handle 30 is parallel to the axial direction of the hair dryer 10, and the hair care device is in an unfolded state, which is suitable for hairdressing needs.

[0105] Furthermore, when the handle 30 is in the third position, the axial direction of the handle 30 is perpendicular to the axial direction of the hair dryer 10, so that the handle 30 can be held conveniently for blowing.

[0106] As shown in FIG3 , when the handle 30 is in the second position, the hair care device is connected to a curling attachment. The curling attachment is mounted on one side of the air outlet of the hair dryer 10, and can be connected magnetically. During use, the handle 30 is held and rotated to rotate the curling attachment, achieving a curling operation. The curling attachment can be a comb-shaped structure, or it can be any other structure capable of curling hair.

[0107] Furthermore, in this embodiment, the ratio of the diameter D1 of the outer wall of the air duct 10 to the length L1 of the air duct 10 is within a range of 0.22 to 0.43. In this embodiment, D1 is less than or equal to 60 mm, and L1 is less than or equal to 180 mm. Preferably, D1 is between 40 and 60 mm, and L1 is between 140 and 180 mm. More preferably, D1 is 56 mm, and L1 is 145 mm.

[0108] In this embodiment, the diameter D2 of the outer wall of the handle 30 is less than or equal to 50 mm, and the length L2 of the handle 30 is less than or equal to 180 mm. Preferably, D2 is 36 mm, and L2 is 150 mm.

[0109] When the handle is in the second position, the axis of the handle is parallel to the axis of the hair dryer, and at least one of the axes of the handle and the hair dryer is parallel to or coincides with the horizontal plane. Furthermore, when the plane containing the axes of the handle and the hair dryer is perpendicular to the horizontal plane, the distance L3 between the air outlet endpoint of the hair dryer 10 and the top endpoint of the handle 30 is between 90 and 110 mm, and the distance L4 between the air inlet endpoint of the hair dryer and the rear endpoint of the handle is greater than or equal to 70 mm. Preferably, L3 is 98 mm, and L4 is 85 mm. The distance L4 is determined based on usage. When the handle 30 is in the second position, the hair care device as a whole is roughly in the shape of a "1." The distance L4 is sufficient to ensure that the handle 30 can be grasped by a hand for hairdressing and other operations. Furthermore, the switch button on the handle 30 should be clear of the hair dryer 10 to prevent interference with its operation when in the second position.

[0110] Preferably, the handle is in the same plane when in the first, second, and third positions. That is, the handle can be switched to different positions within a certain plane. It should be understood that the handle can also be switched with more degrees of freedom.

[0111] It should be understood that the handle 30 has a reserved area for the user to grip, allowing the user to perform hair blowing or styling operations by holding the handle 30 when in the second position. For example, when the hair care device is attached to a curling iron, the user can perform hair curling operations more effectively. The handle of the hair care device does not interfere with the user's body, providing more room for curling, more similar to using a straight-handled curling iron, and providing greater user convenience. The handle 30 is not limited to the second or third position described above; it can also be in a position between the second and third positions, such as when the handle 30 is rotated to 135°, and can also be fixed. The user can perform hair blowing or styling operations based on their physical condition and desired blowing direction.

[0112] Furthermore, when the handle 30 is in the second position, the axis of the handle 30 is parallel to the axis of the hair dryer 10, and the distance between the two axes is less than or equal to 55 mm. When the distance between the two axes is less than 55 mm, it is convenient to rotate the hair dryer within a small range by turning the handle, which is beneficial to improving the precision and stability of hair blowing. Alternatively, when the distance is less than 55 mm, the user can hold the handle 30 and the hair dryer 10 at the same time to complete hair blowing or hair styling operations. For example, when a curling iron accessory is attached, the user can better curl the hair. The handle of the hair care device will not interfere with the user's body, and the curling operation space is larger, which is closer to the use of a straight-handled curling iron, making it more convenient for the user to use, as shown in Figure 19.

[0113] More preferably, the distance between the two axes is between 45-50 mm.

[0114] It should be understood that the length of a component refers to the maximum length of the component in the direction of its axis. For example, the length L1 of the hair dryer 10 is the length from the air outlet endpoint to the air inlet endpoint in the direction of the axis of the hair dryer 10, and the length L2 of the handle 30 is the length from the top end of the handle 30 to the rear end of the handle 30 in the direction of the axis of the handle 30. Similarly, the diameter of the outer wall of a component refers to the maximum diameter of the outer wall of the component. For example, the diameter D2 of the outer wall of the handle 30 is the maximum diameter of the handle 30 from the top end to the rear end of the handle 30. In special cases, such as when the outer wall of a component is an elliptical or polygonal shape that is approximately circular, the diameter of the outer wall of the component is the diameter of the smallest circumscribed circle of the outer wall of the component.

[0115] As shown in Figures 1 to 14, the rotating assembly 20 includes a main body 210 and a transmission part 220. The first end of the main body 210 is fixedly connected to the hair duct 10, and the second end of the main body 210 is rotatably connected to the transmission part 220; the transmission part 220 is also fixedly connected to the handle 30.

[0116] Specifically, the main body 210 is fixedly connected to the hair duct 10 to achieve the connection function, the transmission part 220 is fixedly connected to the handle 30, and the rotational connection between the handle 30 and the hair duct 10 is achieved through the rotational cooperation of the main body 210 and the transmission part 220.

[0117] Furthermore, the second end of the main body 210 has a circular groove structure 211, and at least a portion of the transmission part 220 can be rotatably arranged inside the circular groove structure 211, so that at least a portion of the transmission part 220 can rotate inside the circular groove structure 211, thereby realizing the rotational coordination of the main body 210 and the transmission part 220.

[0118] In this embodiment, the rotating assembly 20 further includes a limiting structure 230, which includes a limiting member that defines a first engaging position, a second engaging position, and a third engaging position, which correspond to the first position, the second position, and the third position of the handle 30, respectively. The limiting member is used to provide the first engaging position, the second engaging position, and the third engaging position, thereby enabling the transmission portion 220 and the main body 210 to switch their engaging positions via the limiting member, so that the handle 30 can switch between the first position, the second position, and the third position.

[0119] As shown in FIG. 1 to FIG. 14 , the limiting member includes a first limiting member 231 and a second limiting member 232 that cooperate with each other in limiting. The first limiting member 231 is provided on the inner circumferential wall surface of the circular groove structure 211 , and the second limiting member 232 is provided on the transmission part 220 .

[0120] Specifically, the first limit member 231 and the second limit member 232 are matched to limit each other, and there are a first clamping position, a second clamping position and a third clamping position between the first limit member 231 and the second limit member 232, so that the relative position between the handle 30 and the hair dryer 10 can be switched by switching the clamping positions of the first limit member 231 and the second limit member 232.

[0121] Furthermore, at least three first limiting members 231 are provided along the circumference of the circular groove structure 211 , and the second limiting members 232 are provided in cooperation with the first limiting members 231 . The three first limiting members 231 provided along the circumference of the circular groove structure 211 are used to provide three clamping positions.

[0122] In this embodiment, one of the first limiting member 231 and the second limiting member 232 is a limiting groove, and the other is a limiting protrusion, and at least a portion of the limiting protrusion can extend into the limiting groove. The first limiting member 231 and the second limiting member 232 utilize a limiting groove and a limiting protrusion structure to achieve a snap-fit ​​engagement. There may be at least three limiting grooves, or at least three limiting protrusions. Alternatively, there may be three limiting grooves and three limiting protrusions, with each limiting protrusion corresponding to the limiting groove.

[0123] As shown in Figures 1 to 14, the handle 30 includes a first shell 310 and a second shell 320 that are detachably connected. The first shell 310 and the second shell 320 form an installation cavity 301 toward the first end of the hair dryer 10. At least a portion of the second end of the main body 210 is accommodated inside the installation cavity 301, and at least a portion of the transmission part 220 is drivingly connected to the second shell 320.

[0124] Specifically, the second housing 320 of the handle 30 drives the transmission part 220 to rotate relative to the main body 210 , thereby achieving position switching of the handle 30 relative to the hair dryer 10 .

[0125] In this embodiment, the transmission part 220 includes a transmission bracket 222 and a shift ring 221. The transmission bracket 222 is drivingly connected to the second shell 320. The shift ring 221 is arranged on the side of the transmission bracket 222 away from the second shell 320. The shift ring 221 is rotatably arranged inside the circular groove structure 211. A second limit member 232 is provided on the outer peripheral surface of the shift ring 221. The transmission bracket 222 is drivingly connected to the shift ring 221.

[0126] Among them, the second shell 320 rotates synchronously with the transmission bracket 222, and the transmission bracket 222 rotates synchronously with the shift ring 221. Three clamping positions are achieved between the shift ring 221 and the main body 210 through the first limit member 231 and the second limit member 232, thereby realizing the switching of the handle 30 between the three positions.

[0127] Furthermore, the transmission bracket 222 is connected to the second housing 320 via a first positioning structure, which is a positioning boss and groove structure, thereby enabling the second housing 320 to drive the transmission bracket 222 to rotate. The transmission bracket 222 has one of a first boss 321 and a first groove 2223 on the side facing the second housing 320, and the second housing 320 has the other of the first boss 321 and the first groove 2223. The transmission bracket 222 is driven and connected to the second housing 320 via the first boss 321 and the first groove 2223.

[0128] Furthermore, the transmission bracket 222 and the shift ring 221 are connected by a second positioning structure, which is a positioning boss and groove structure. The transmission bracket 222 has one of a second boss 2211 and a second groove 2221 on the side facing the shift ring 221, and the shift ring 221 has the other of the second boss 2211 and the second groove 2221. The transmission bracket 222 and the shift ring 221 are driven and connected by the second boss 2211 and the second groove 2221.

[0129] In this embodiment, the main body 210 has a through hole 212, and the first housing 310 has a drive shaft 311 extending toward the second housing 320. The drive shaft 311 extends through the through hole 212 and is drivably connected to the transmission portion 220. The first housing 310 drives the transmission bracket 222 to rotate synchronously with the first housing 310 via the drive shaft 311. The transmission bracket 222 drives the second housing 320 and the shifting ring 221 to rotate synchronously, thereby achieving rotation of the first housing 310, the second housing 320, the transmission bracket 222, and the shifting ring 221. The shifting ring 221 engages with the main body 210 to switch the handle 30 between three positions.

[0130] As shown in Figures 1 to 14, the end of the drive shaft 311 away from the first shell 310 has a first stopper 3111 extending circumferentially, and the transmission part 220 has a second stopper 2222 extending circumferentially along the drive shaft 311. The first stopper 3111 and the second stopper 2222 are driven and engaged.

[0131] Specifically, the first stopper 3111 and the second stopper 2222 are in abutment with each other, so that the first stopper 3111 and the second stopper 2222 can be driven to cooperate and rotate.

[0132] Furthermore, the first stopper 3111 and the second stopper 2222 are semicircular, and the first stopper 3111 and the second stopper 2222 cooperate to form a complete circular structure.

[0133] Furthermore, the hair care device includes a fastener 50, through which the transmission unit 220 is fixedly connected to the end of the drive shaft 311 away from the first housing 310. The use of the fastener 50 to securely connect the drive shaft 311 and the transmission unit 220 improves the stability of the connection between the drive shaft 311 and the transmission unit 220, thereby ensuring the efficiency of the drive shaft 311 driving the transmission unit 220 and improving the rotational efficiency of the handle 30. The fastener 50 may be a bolt, for example.

[0134] Furthermore, the fastener 50 is used to connect the drive shaft 311 and the transmission bracket 222 so that the drive shaft 311 can drive the transmission bracket 222 to rotate synchronously.

[0135] In this embodiment, the hair care device further includes a fixing member. The main body 210 of the rotating assembly 20 has a clearance hole extending toward the hair dryer 10. At least a portion of the fixing member passes through the clearance hole, and the main body 210 is connected to the hair dryer 10 via the fixing member. The clearance hole provided on the main body 210 facilitates the fixing member's connection to the hair dryer 10 after passing through the clearance hole. The fixing member can be a bolt, etc.

[0136] In this embodiment, the handle 30 has a mounting cavity 301 on the end facing the hair dryer 10. At least a portion of the rotating assembly 20 is located within the mounting cavity 301. The hair care device also includes a bracket 40 disposed within the mounting cavity 301. The bracket 40 is located on the side of the rotating assembly 20 away from the hair dryer 10 and has a support surface 410 that slidably engages with the rotating assembly 20. The outer circumferential surface of the portion of the rotating assembly 20 located within the mounting cavity 301 is a convex arc surface, while the support surface 410 is a concave arc surface.

[0137] Furthermore, as shown in FIG. 15 to FIG. 17 , in this embodiment, the transmission portion 220 includes a transmission bracket 222 and a shifting ring 221 , and the transmission bracket 222 and the shifting ring 221 are drivingly connected so that the transmission bracket 222 and the shifting ring 221 rotate synchronously.

[0138] Specifically, the drive bracket, through the shift ring 221, cooperates with the circular groove structure to facilitate adjustment of the handle 30 between multiple positions, improving the operability of the hair care device and making it easier for the user to use. Furthermore, the drive bracket 222 and the shift ring 221 cooperate to facilitate securing the handle 30 in one of multiple engaging positions, thereby improving the stability of the hair care device.

[0139] In this embodiment, the hair care device further includes a support member 60, which is disposed on the inner circumferential surface of the dial ring 221. The support member 60 is elastically deformable and has a stable reset capability. The support member 60 is configured to abut against the dial ring 221. By supporting the dial ring 221, the support member 60 consistently provides a radially outward biasing force to the dial ring 221, thereby maintaining the dial ring 221 relatively fixed to the circular groove structure 211, thereby maintaining the handle 30 in the first position, the second position, or the third position.

[0140] Specifically, the support member 60 provides driving force for the second limiting member 232 to maintain the limiting engagement with the first limiting member 231. The support member 60 can always support the dial ring 221, thereby increasing the service life of the foldable handle 30 of the hair care device and improving the user's experience.

[0141] In this embodiment, the support member 60 is arranged on the inner circumferential surface of the dial ring 221. The support member 60 provides supporting force so that the dial ring 221 can be maintained at any position relative to the circular groove structure, which is conducive to improving the positioning effect and facilitating the handle 30 to remain solid relative to the hair dryer 10 after rotating to any angle, providing convenience in use. The support member 60 can always support the dial ring 221, increase the service life of the folding handle of the hair care device, and improve the user's experience.

[0142] The support member 60 abuts the inner circumference of the dial ring 221, supporting the dial ring 221 radially outward, providing sufficient damping force. This allows the handle 30 of the hair care device to remain in any position relative to the hair dryer 10, such as 47° or 115°. Users can adjust and fix the handle at any angle based on their posture and practical application.

[0143] In this embodiment, the rotating assembly 20 also includes a limiting structure 230, which includes a limiting member, which defines a first clamping position, a second clamping position and a third clamping position to correspond to the first position, the second position and the third position of the handle 30 respectively; the limiting member includes a first limiting member 231 and a second limiting member 232 that cooperate with each other in limiting. The first limiting member 231 is arranged on the inner circumferential wall surface of the circular groove structure 211, and the second limiting member 232 is arranged on the transmission part 220. Along the circumference of the circular groove structure 211, there are at least three first limiting members 231, and the second limiting member 232 is arranged in cooperation with the first limiting member 231; the handle 30 includes a detachable The first shell 310 and the second shell 320 are connected. The first shell 310 and the second shell 320 form a mounting cavity 301 toward the first end of the hair dryer 10. At least a portion of the second end of the main body 210 is accommodated within the mounting cavity 301. At least a portion of the transmission portion 220 is drivingly connected to the second shell 320. The transmission bracket 222 is drivingly connected to the second shell 320. The shifting ring 221 is disposed on a side of the transmission bracket 222 away from the second shell 320. The shifting ring 221 is rotatably disposed within the circular groove structure 211. A second limiting member 232 is disposed on the outer circumference of the shifting ring 221. The transmission bracket 222 is drivingly connected to the shifting ring 221. The support member 60 provides driving force for the second limiting member to maintain and cooperate with the first limiting member. The support member 60 can always support the shifting ring 221, facilitating that the handle 30 remains in the engaged position.

[0144] During the position switching process of the handle 30, the first limit member and the second limit member are disengaged from each other, that is, the limit protrusion and the limit groove are staggered, and the shift ring 221 is deformed into a roughly elliptical structure under the force. At this time, the support member 60 supported on the inner circumference of the shift ring 221 provides a driving force for the shift ring 221 to reset, so that when the handle 30 is rotated to the first position, the second position or the third position, the first limit member and the second limit member resume the limit cooperation and maintain the cooperation state under the support action of the support member 60.

[0145] When the handle 30 is at the first position, the second position, or the third position, the support member 60 provides a retaining force for the insertion and fit of the limiting protrusion and the limiting groove, so as to achieve stable fit between the shifting ring 221 and the circular groove structure 211 .

[0146] The support member 60 is supported on the shift ring 221 and rotates synchronously with the shift ring 221 .

[0147] In this embodiment, the support member 60 is elastically deformable. When the handle 30 switches positions, the deformation of the shift ring 221 compresses the support member 60, causing it to elastically deform. The elastically deformed support member 60 provides a driving force to restore the shift ring 221. When the handle 30 is in the first position, the second position, or the third position, the support member 60 provides a force that resists the deformation of the shift ring 221, thereby ensuring a stable fit between the shift ring 221 and the circular groove structure 211, thereby maintaining the handle 30 in the first position, the second position, or the third position.

[0148] In another possible embodiment, the hair care device includes a hair dryer 10 , a handle 30 , a rotating assembly 20 and a support 60 , wherein the handle 30 is rotatably connected to the hair dryer 10 via the rotating assembly 20 .

[0149] The handle 30 has at least a first position, a third position, and / or a second position relative to the hair dryer 10, and the angle between the axial direction of the handle 30 when in the first position and the axial direction of the handle 30 when in the second position is an obtuse angle or a right angle. When the handle 30 is in the third position, the angle between the axial direction of the handle 30 and the axial direction of the handle 30 when in the first position or the axial direction of the handle 30 when in the second position is an acute angle or a right angle.

[0150] Furthermore, the rotating assembly includes a main body 210 and a transmission part 220, the first end of the main body 210 is fixedly connected to the hair duct 10; the main body 210 is rotatably connected to the transmission part 220, the transmission part 220 includes a transmission bracket 222 and a shift ring 221, the transmission bracket 222 and the shift ring 221 are drivingly connected, and the support member 60 is supported on the inner circumference of the shift ring 221.

[0151] In this embodiment, the hair care device realizes that the handle 30 can be switched between the first position, the second position and the third position through a rotating component. The position of the hair dryer 10 and the handle 30 can be adjusted in the range of 0-180°. Through the structure of the support member 60 and the dial ring 221, under the support of the support member 60, the dial ring 221 can remain relatively fixed relative to the main body 210, meeting the multi-angle requirements of the relative position between the hair dryer 10 and the handle 30 during the use of the hair care device, providing a range of applicability of the hair care device, and improving the user experience.

[0152] In this embodiment, the rotating assembly 20 also includes a limiting structure 230, which includes a limiting member, which defines a first clamping position, a second clamping position and a third clamping position to correspond to the first position, the second position and the third position of the handle 30 respectively; the limiting member includes a first limiting member 231 and a second limiting member 232 that cooperate with each other in limiting. The first limiting member 231 is arranged on the inner circumferential wall surface of the circular groove structure 211, and the second limiting member 232 is arranged on the transmission part 220. Along the circumference of the circular groove structure 211, there are at least three first limiting members 231, and the second limiting member 232 is arranged in cooperation with the first limiting member 231; the handle 30 includes a detachable The first housing 310 and the second housing 320 are connected. The first housing 310 and the second housing 320 form a mounting cavity 301 toward the first end of the hair dryer 10. At least a portion of the second end of the main body 210 is accommodated within the mounting cavity 301. At least a portion of the transmission portion 220 is drivingly connected to the second housing 320. The transmission bracket 222 is drivingly connected to the second housing 320. The shift ring 221 is disposed on a side of the transmission bracket 222 away from the second housing 320. The shift ring 221 is rotatably disposed within the circular groove structure 211. A second stopper 232 is disposed on the outer circumference of the shift ring 221. The transmission bracket 222 is drivingly connected to the shift ring 221. The shift ring can be engaged with the circular groove structure through the stopper structure, so that the handle can be maintained in the engaged position. At the same time, under the support of the support member, the support member provides a driving force for the shift ring to maintain engagement with the circular groove structure, thereby achieving stability in the engaged position and improving the stability of the hair care device during use.

[0153] As shown in FIG3 , the ratio of the diameter D1 of the outer wall of the air duct 10 to the length L1 of the air duct 10 in this embodiment is in the range of 0.22 to 0.43. In this embodiment, D1 is less than or equal to 60 mm, and L1 is less than or equal to 180 mm. Preferably, D1 is between 40 and 60 mm, and L1 is between 140 and 180 mm. More preferably, D1 is 56 mm, and L1 is 145 mm.

[0154] In this embodiment, the diameter D2 of the outer wall of the handle 30 is less than or equal to 50 mm, and the length L2 of the handle 30 is less than or equal to 180 mm. Preferably, D2 is 36 mm, and L2 is 150 mm.

[0155] When the handle is in the second position, the axis of the handle is parallel to the axis of the hair dryer, and at least one of the axis of the handle and the axis of the hair dryer is parallel to or coincides with the horizontal plane, and the plane where the axis of the handle and the axis of the hair dryer are located is perpendicular to the horizontal plane. In the projection on the horizontal plane, the distance L3 between the air outlet endpoint of the hair dryer 10 and the top endpoint of the handle 30 is between 90-110 mm, and the distance L4 between the air inlet endpoint of the hair dryer and the tail endpoint of the handle is greater than or equal to 70 mm. Preferably, L3 is 98 mm and L4 is 85 mm. The setting distance of L4 is determined according to the usage. When the handle 30 is in the second position, the distance of L4 must ensure that the hand can hold the handle 30 so as to perform hairdressing and other operations. Furthermore, the switch button provided on the handle 30 must also avoid the hair dryer 10, so as not to interfere with the operation of the switch button when placed in the second position.

[0156] It should be understood that the handle 30 has a reserved area for the user to grip, allowing the user to perform hair blowing or hair styling operations by holding the handle 30 when in the second position. For example, when using a curling iron, the user can better curl hair. The handle of the hair care device does not interfere with the user's body, providing more room for curling, more similar to a straight-handled curling iron, and providing greater user convenience. The handle 30 is not limited to the second or third position described above; it can also be in a position between the second and third positions, such as when rotated to 135°, and can be fixed. The user can perform hair blowing or hair styling operations based on their physical condition and desired blowing direction.

[0157] Furthermore, when the handle 30 is in the second position, the axis of the handle 30 is parallel to the axis of the hair dryer 10, and the distance between the two axes is less than or equal to 55 mm. This distance of less than 55 mm facilitates the rotation of the hair dryer within a small range by turning the handle, which helps improve the precision and stability of hair drying. Alternatively, when the distance is less than 55 mm, the user can simultaneously hold the handle 30 and the hair dryer 10 to perform hair drying or hair styling operations. For example, when using a curling iron, the user can better curl their hair because the handle of the hair care device does not interfere with the user's body, providing more room for curling and more similar to a straight-handled curling iron, making it more convenient for the user.

[0158] More preferably, the distance between the two axes is between 45-50 mm.

[0159] It should be understood that the length of a component refers to the maximum length of the component in the direction of its axis. For example, the length L1 of the hair dryer 10 is the length from the air outlet endpoint to the air inlet endpoint in the direction of the axis of the hair dryer 10, and the length L2 of the handle 30 is the length from the top end of the handle 30 to the rear end of the handle 30 in the direction of the axis of the handle 30. Similarly, the diameter of the outer wall of a component refers to the maximum diameter of the outer wall of the component. For example, the diameter D2 of the outer wall of the handle 30 is the maximum diameter of the handle 30 from the top end to the rear end of the handle 30. In special cases, such as when the outer wall of a component is an elliptical or polygonal shape that is approximately circular, the diameter of the outer wall of the component is the diameter of the smallest circumscribed circle of the outer wall of the component.

[0160] As shown in Figures 15 to 17, along the circumference of the support member 60, the support member 60 is not closed to form a notch 611. The provision of the notch is conducive to increasing the deformation effect of the support member and enhancing the elastic force of the support member.

[0161] The two ends of the support member 60 are spaced apart to form notches 611 , and the notches 611 are communicated with the deformation cavity 610 surrounded by the support member 60 to enhance the deformation effect.

[0162] Specifically, the provision of notch 611 facilitates increasing the deformation effect of support member 60 and enhancing the elastic force of support member 60. Notch 611 provides a deformable space for support member 60. Support member 60 has a semi-enclosed structure, forming a semi-enclosed deformation cavity 610. Notch 611 is connected to deformation cavity 610. When support member 60 is deformed by force, the two ends of support member 60 approach each other, reducing notch 611. The provision of notch 611 facilitates deformation of support member 60.

[0163] In this embodiment, the support member is in the shape of a non-closed circular ring, so as to support the inner surface of the shift ring 221 through the ring structure.

[0164] In another embodiment, not limited to the above-mentioned non-closed circular ring structure, the support member is in a closed non-circular shape, such as an ellipse, a heart shape or other irregular shapes.

[0165] In this embodiment, the support member 60 provides a driving force for maintaining the second stopper 232 of the stopper structure 230 of the rotating assembly 20 and for engaging the first stopper 231 of the stopper structure 230. The provision of the support member 60 helps improve the stability of the engagement between the first stopper 231 and the second stopper 232, thereby improving the stability of the handle 30 when in the engaged position.

[0166] Furthermore, the inner circumference of the support member 60 includes a protrusion 2212 aligned with the first position-limiting member 231, and at least a portion of the support member 60 abuts against the protrusion 2212. The first position-limiting member 231 and the protrusion 2212 are collinear along the radial direction of the shift ring 221, thereby shortening the abutment path when the support member 60 abuts against the protrusion 2212, thereby facilitating the support member 60 to better provide driving force for the first position-limiting structure and the second position-limiting member.

[0167] Furthermore, along the side of the shift ring 221 facing away from the circular groove structure 211, the surface of the support member 60 does not protrude beyond the surface of the shift ring 221. The support member 60 is concealed within the deformation cavity 610 of the shift ring 221, preventing interference between the support member 60 and the transmission bracket 222, which could cause installation problems. Furthermore, the support member 60 is concealed within the deformation cavity 610 of the shift ring 221, and the shift ring 221 protects the support member 60.

[0168] In this embodiment, the support member 60 is made of an elastic material. The elastic material provides good elasticity for the support member 60, thereby supporting the support member 60 within the shift ring 221 to provide good support and enhance the stability of the mating assembly of the shift ring 221 and the circular groove structure 211. The elastic material also provides the support member 60 with good toughness, a long bending life, and ease of stretching, deformation, and restoration. Preferably, the elastic material is spring steel.

[0169] Of course, the support member 60 is not limited to being made of spring steel. The support member 60 may also be made of other elastic metals, such as copper.

[0170] It should be noted that the support member 60 of the present application is used to support the shift ring 221 so that the limiting protrusion and the limiting groove can maintain a stable snap-fit ​​fit, thereby achieving relative fixation of the shift ring 221 relative to the circular groove structure 211. At this time, the handle 30 can be maintained in the first position, the second position or the third position.

[0171] As shown in FIG. 18 , in this embodiment, the hair care device further includes a protective member 70 .

[0172] Specifically, a wiring space is formed between the main body 210 and the first shell 310 , and the protective member 70 is disposed inside the wiring space. The protective member 70 is used to wrap the circuit.

[0173] The circuit is used for conducting electricity, and the circuit realizes the electrical connection between the electrical components inside the hair dryer and the electrical components in the handle.

[0174] In order to solve the problem of wear of the circuit due to the rotation of the handle 30 in the prior art, this embodiment provides a protective member 70. The protective member 70 is wrapped around the circuit. During the rotation of the first shell 310 relative to the main body 210, the first shell 310 is not in direct contact with the circuit, which is conducive to protecting the circuit and also helps to improve the smoothness of the rotation of the handle 30.

[0175] Furthermore, the protective member 70 has an escape channel 710 extending along the axial direction of the main body 210. The escape channel 710 is used to allow the drive shaft 311 on the first housing 310 to pass through. The drive shaft 311 passes through the escape channel 710, and the inner surface of the escape channel 710 covers the drive shaft 311, thereby improving the compactness of the overall structure and facilitating the stable installation of the protective member 70.

[0176] Furthermore, the protective member 70 is cushioned between the first shell 310 and the main body 210 .

[0177] Furthermore, the protective member 70 of this embodiment is made of foam material, which reduces friction on the circuit to extend the service life of the circuit of the hair care device. Of course, the protective member 70 can also be made of other materials with protective effects, such as plastic.

[0178] Furthermore, the protective member 70 is a columnar structure coaxial with the main body 210. The columnar protective member 70 is used to fill the interior of the wiring space so as to cover all lines, while also avoiding dirt from hiding in the wiring space and improving the aesthetics.

[0179] In this embodiment, the protective member 70 is arranged on the main body 210, wherein the handle 30 is rotatably arranged relative to the main body 210 and the hair dryer 10. Setting the protective member 70 on the main body 210 is beneficial to the stability of the installation of the protective member 70, and is also beneficial to positioning the line to keep the line relatively fixed, which is beneficial to improving the protection effect.

[0180] This embodiment provides a rotating assembly, as shown in Figures 1 to 18, the rotating assembly includes a main body 210 and a transmission part 220, which is at least partially arranged in the main body 210 and rotatably connected to the main body 210, and the transmission part 220 includes a transmission bracket 222, a shift ring 221 and a support member 60, the transmission bracket 222 and the shift ring 221 are drivingly connected, and the support member 60 is arranged on the inner circumferential surface of the shift ring 221.

[0181] Specifically, the support member of the present application is supported on the inner circumference of the dial ring, and the support member provides supporting force so that the dial ring can be maintained at any position relative to the circular groove structure, which is conducive to improving the positioning effect and facilitating the handle to remain solid relative to the hair dryer after being rotated to any angle, providing convenience in use. The support member can always support the dial ring, increase the service life of the folding handle of the hair care device, and improve the user's experience.

[0182] In this embodiment, the rotating assembly 20 further includes a limiting structure 230, which includes a limiting member that defines a first engaging position and a second engaging position. The limiting member includes a first limiting member 231 and a second limiting member 232 that cooperate with each other in a limiting manner. The first limiting member 231 is disposed on the inner circumferential wall of the main body, and the second limiting member 232 is disposed on the transmission portion 220, and the second limiting member 232 cooperates with the first limiting member 231. The support member provides driving force for maintaining the second limiting member and cooperating with the first limiting member in the limiting position. The support member can always support the dial ring, facilitating the handle to remain in the engaging position.

[0183] In this embodiment, the support member 60 is made of an elastic material. The elastic material provides good elasticity for the support member 60, thereby supporting the support member 60 within the shift ring 221 to provide good support and enhance the stability of the mating assembly of the shift ring 221 and the circular groove structure 211. The elastic material also provides the support member 60 with good toughness, a long bending life, and ease of stretching, deformation, and restoration. Preferably, the elastic material is spring steel.

[0184] Of course, the support member 60 is not limited to being made of spring steel. The support member 60 may also be made of other elastic metals, such as copper.

[0185] As shown in Figures 15 to 17, along the circumference of the support member 60, the support member 60 is not closed to form a notch 611. The provision of the notch is conducive to increasing the deformation effect of the support member and enhancing the elastic force of the support member.

[0186] The two ends of the support member 60 are spaced apart to form notches 611 , and the notches 611 are communicated with the deformation cavity 610 surrounded by the support member 60 to enhance the deformation effect.

[0187] Specifically, the provision of notch 611 facilitates increasing the deformation effect of support member 60 and enhancing the elastic force of support member 60. Notch 611 provides a deformable space for support member 60. Support member 60 has a semi-enclosed structure, forming a semi-enclosed deformation cavity 610. Notch 611 is connected to deformation cavity 610. When support member 60 is deformed by force, the two ends of support member 60 approach each other, reducing notch 611. The provision of notch 611 facilitates deformation of support member 60.

[0188] In this embodiment, the support member 60 is in the shape of a non-closed circular ring, so as to support the inner surface of the shift ring 221 through the ring structure.

[0189] In another embodiment, not limited to the above-mentioned non-closed circular ring structure, the support member 60 is in a closed non-circular shape, such as an elliptical shape or other irregular shapes.

[0190] In this embodiment, the support member 60 provides a driving force for maintaining the second stopper 232 of the stopper structure 230 of the rotating assembly 20 and for engaging the first stopper 231 of the stopper structure 230. The provision of the support member 60 helps improve the stability of the engagement between the first stopper 231 and the second stopper 232, thereby improving the stability of the handle 30 when in the engaged position.

[0191] This embodiment provides a hair care device, which includes the rotating assembly 20, the hair cylinder 10 and the handle 30 in the above embodiment, one end of the main body 210 is fixedly connected to the hair cylinder 10, and the transmission part 220 is fixedly connected to the handle 30.

[0192] In this embodiment, the hair care device realizes that the handle can be switched between the first position, the second position and the third position through a rotating component, and the position of the hair dryer and the handle can be adjusted in the range of 0-180°. Through the structure of the support member 60 and the dial ring 221, under the support of the support member 60, the dial ring 221 can remain relatively fixed relative to the main body, meeting the multi-angle requirements of the relative position between the hair dryer 10 and the handle 30 during the use of the hair care device, providing a range of applicability of the hair care device, and improving the user experience.

[0193] As shown in Figures 20 to 25, the present application also provides a hair care device, which may include a blower body 100, an attachment 200, and a rotation-stopping mechanism 300. The hair care device may be implemented in the form of a hair dryer as the main body with a styling attachment 200 added, and the hair care device may be used for hair, wigs, or other hair.

[0194] Before the accessory 200 is installed on the hair care device, the user can use the blower body 100 to provide cold air or hot air to the hair to dry the hair.

[0195] Referring to Figure 20, after the accessory 200 is installed on the fan main body 100, the fan main body 100 can be used to provide airflow to the accessory 200, and the accessory 200 is used to style the hair through the airflow, wherein the hair styling method is mainly reflected by the structural characteristics and functions of the accessory 200 itself. For example, the accessory 200 with a curling function can perform curling on the hair after being connected to the fan main body 100, the anti-flying accessory 200 can style the hair after being connected to the fan main body 100 to prevent the hair from flying, and the smoothing nozzle accessory 200 can use strong concentrated air to dry the hair and make the hair smoother after being connected to the fan main body 100.

[0196] 21 and 22 , the anti-rotation mechanism 300 may include a first structure 330 and / or a second structure 340 . For example, the anti-rotation mechanism 300 may include the first structure 330 and the second structure 340 , or the anti-rotation mechanism 300 may include the first structure 330 or the second structure 340 .

[0197] When the anti-rotation mechanism 300 may include a first structure 330 and a second structure 340, the first structure 330 and the second structure 340 are respectively arranged on the fan body 100 and the accessory 200. For example, the first structure 330 is arranged on the fan body 100, and the second structure 340 is arranged on the accessory 200. After the accessory 200 is connected to the fan body 100, the first structure 330 and the second structure 340 cooperate to fix the accessory 200 relative to the fan body 100.

[0198] It can be understood that the first structure 330 and the second structure 340 cooperate to fix the accessory 200 relative to the fan body 100, which means that when the accessory 200 and the fan body 100 are connected through the first structure 330 and the second structure 340, in the connected state, the accessory 200 and the fan body 100 cannot move relative to each other, such as movement along the axis of the fan body 100 (as shown by the axis P in Figure 20) and rotational movement around the axis of the fan body 100.

[0199] In this way, it can prevent the accessory 200 from rotating or moving as a whole relative to the fan body 100 when the user needs to adjust the air outlet direction or usage angle of the accessory 200, causing the air outlet direction of the accessory 200 to be uncontrollable, and the hair to fly around when the user styles or dries the hair. At the same time, the connection stability between the accessory 200 and the fan body 100 is improved, thereby improving the user experience.

[0200] When the anti-rotation mechanism 300 includes a first structure 330 or a second structure 340, the first structure 330 or the second structure 340 is disposed on one of the wind turbine body 100 and the accessory 200. After the accessory 200 is connected to the wind turbine body 100, the orientation of the accessory 200 relative to the wind turbine body 100 can be flexible. It is understood that the first structure 330 can be disposed on the wind turbine body 100 or the accessory 200, or the second structure 340 can be disposed on the wind turbine body 100 or the accessory 200.

[0201] 21 and 22 , in an exemplary embodiment, the first structure 330 can be provided on the fan body 100, while the second structure 340 of the anti-rotation mechanism 300 is not provided on the accessory 200. Therefore, when the user uses the accessory 200 connected to the fan body 100 and does not need to adjust the airflow direction or use angle, or when this type of accessory 200 does not change with changes in wind direction, that is, the purpose of the accessory 200 can be achieved in any airflow direction, such as a serum nozzle or a mist nozzle, only the first structure 330 or the second structure 340 can be provided on the fan body 100. In this case, after the fan body 100 and the accessory 200 are connected, the accessory 200 can be fixed in direction relative to the fan body 100 without the cooperation of the first structure 330 and the second structure 340. For example, the accessory 200 can rotate relative to the fan body 100.

[0202] To sum up, the hair care device of the present application can flexibly adjust the fixing method between the accessory 200 and the fan main body 100 according to the different styling needs of the user, so as to prevent the accessory 200 from rotating or moving relative to the fan main body 100 when the user needs to adjust the air outlet direction and usage angle of the accessory 200, or when it is frequently pulled by external force during use. It can also achieve that when the user does not need to adjust the air outlet direction and usage angle of the accessory 200, the connection state between the accessory 200 and the fan main body 100 is not constrained, thereby improving the flexibility of the connection between the fan main body 100 and the accessory 200, and can improve the flexibility and practicality of use of the hair care device.

[0203] 20 , 21 and 22 , an embodiment of the present application further provides a hair care device, which may include a blower body 100 , two or more accessories 200 and a rotation-stopping mechanism 300 .

[0204] Two or more accessories 200 are provided, each of which is connected to the blower body 100. The blower body 100 is configured to provide airflow to the accessories 200, and the accessories 200 are configured to shape a target object through the airflow. Each of the accessories 200 can be independently connected to the blower body 100, and at least two of the accessories 200 have different shaping functions.

[0205] In this way, by using multiple accessories 200 to cooperate with the blower body 100, the user can use different accessories 200 to cooperate with the blower body 100 when styling the hair in different ways, thereby meeting the user's needs for various hair styling needs, enriching the styling function of the hair care device, and improving the practicality of the hair care device.

[0206] The anti-rotation mechanism 300 includes a first structure 330 and at least one second structure 340 . The first structure 330 is disposed on the wind turbine body 100 .

[0207] Some accessories 200 are provided with a second structure 340, and the first structure 330 cooperates with the second structure 340 to secure the accessory 200 provided with the second structure 340 relative to the wind turbine body 100. Some accessories 200 are not provided with the second structure 340, so that after the accessory 200 without the second structure 340 is connected to the wind turbine body 100, the accessory 200 is not secured relative to the wind turbine body 100.

[0208] Thus, when the user uses the accessory 200 provided with the second structure 340 to mate with the fan body 100, the second structure 340 and the first structure 330 cooperate to fix the accessory 200 in a fixed position relative to the fan body 100, thereby reducing the rotation or movement of the accessory 200 provided with the second structure 340 relative to the fan body 100 as a whole, thereby improving the connection stability between the accessory 200 provided with the second structure 340 and the fan body 100. When the user uses the accessory 200 provided without the second structure 340 to mate with the fan body 100, the accessory 200 can be fixed in a fixed position relative to the fan body 100 without the cooperation of the first structure 330 and the second structure 340, thereby achieving no restriction on the connection state between the accessory 200 and the fan body 100.

[0209] To sum up, the hair care device of the present application can use the accessory 200 with or without the second structure 340 to cooperate with the fan main body 100 according to the different styling needs of the user, so that the fixing method between the accessory 200 and the fan main body 100 can be flexibly adjusted to prevent the accessory 200 from rotating or moving relative to the fan main body 100 when the user needs to adjust the air outlet direction and usage angle of the accessory 200, and can achieve that when the user does not need to adjust the air outlet direction and usage angle of the accessory 200, the connection state between the accessory 200 and the fan main body 100 is not constrained, thereby improving the flexibility of the connection between the fan main body 100 and the accessory 200, and can improve the flexibility and practicality of use of the hair care device.

[0210] 21 and 22 , in some embodiments, the first structure 330 may include at least one groove 331 , and the second structure 340 may include at least one protrusion 341 . The groove 331 and the protrusion 341 cooperate to fix the accessory 200 relative to the wind turbine body 100 .

[0211] In this way, the shapes of the groove 331 and the protrusion 341 match each other, so that the groove 331 and the protrusion 341 can cooperate with each other in a specific manner, thereby achieving precise positioning between the accessory 200 and the fan body 100, so that the accessory 200 and the fan body 100 can be accurately installed during the assembly process.

[0212] The matching arrangement of the groove 331 and the protrusion 341 provides a larger contact area and a tighter connection, thereby increasing the stability and load-bearing capacity of the connection between the accessory 200 and the fan body 100. The friction and form fit between the groove 331 and the protrusion 341 prevent the accessory 200 and the fan body 100 from loosening or falling off during use.

[0213] The structures of the groove 331 and the protrusion 341 are relatively simple and easy to manufacture and assemble, which can reduce the manufacturing cost of the anti-rotation mechanism 300 and further reduce the manufacturing cost of the hair care device.

[0214] In some embodiments, there may be multiple grooves 331 and multiple protrusions 341. Multiple grooves 331 can be arranged at intervals around the axis of the fan body 100, and multiple protrusions 341 can be arranged at intervals around the axis of the accessory 200 (as shown by the axis M in FIG. 20 ). The number of grooves 331 and the number of protrusions 341 can be the same.

[0215] In some embodiments, the first structure 330 may include at least one first magnetic material, and the second structure 340 may include at least one second magnetic material compatible with the first magnetic material. The first magnetic material and the second magnetic material cooperate to fix the accessory 200 relative to the wind turbine body 100.

[0216] In this way, the magnetic connection between the first magnetic material and the second magnetic material can realize non-contact connection between the accessory 200 and the fan body 100, and can realize connection between the accessory 200 and the fan body 100 within a certain distance range through the magnetic field or magnetic mutual attraction between the first magnetic material and the second magnetic material without the need for excessive connection operations, thereby improving the connection convenience between the accessory 200 and the fan body 100 and the ease of use of the hair care device.

[0217] Furthermore, the magnetic connection between the first magnetic material and the second magnetic material reduces the wear caused by contact friction between the first structure 330 and the second structure 340, thereby increasing the service life of the first structure 330 and the second structure 340 and the service life of the hair care device.

[0218] It is understandable that both the first magnetic material and the second magnetic material may be magnetic, or one of the first magnetic material and the second magnetic material may be an iron structural member, so as to achieve the connection between the first magnetic material and the second magnetic material.

[0219] In some embodiments, the first magnetic material is a first magnet, and the second magnetic material is a second magnet or an iron sheet. When the first magnet and the second magnet, or the first magnet and the iron sheet, are coupled, the orientation of the accessory 200 and the fan body 100 is fixed relative to each other. For example, the first magnet can be magnetically coupled to the second magnet, or the first magnet can be coupled to a patch.

[0220] Thus, by configuring the first magnetic material as a first magnet and the second magnetic material as a second magnet, a contactless connection is achieved through the magnetic connection between the first magnet and the second magnet, and the orientation of the accessory 200 and the blower body 100 can be fixed relative to each other. The connection is achieved through the mutual attraction between the magnetic fields of the first magnet and the second magnet, eliminating the need for excessive connection operations, thereby improving the convenience of connecting the accessory 200 and the blower body 100 and the ease of use of the hair care device.

[0221] Furthermore, the magnetic connection between the first magnet and the second magnet reduces the wear caused by the contact friction between the first structure 330 and the second structure 340, thereby increasing the service life of the first structure 330 and the second structure 340 and the service life of the hair care device.

[0222] In addition, the connection method between the first magnet and the iron sheet can realize the connection between the magnet and the metal structure. When the hair care device has an iron component and the iron component can be reused as the second structure 340 of the anti-rotation mechanism 300, the number of parts of the hair care device can be reduced, thereby reducing the manufacturing cost of the hair care device.

[0223] In some embodiments, the first structure 330 is an internal thread, and the second structure 340 is an external thread corresponding to the internal thread. The internal thread and the external thread cooperate to fix the accessory 200 relative to the wind turbine body 100.

[0224] In this way, the accessory 200 and the fan body 100 can be connected and fixed in direction by rotation. The connection method of internal thread and external thread can enable the connection between the accessory 200 and the fan body 100 to withstand greater tension or shear force, thereby improving the connection strength between the accessory 200 and the fan body 100 and the stability of direction fixation.

[0225] The connection between the internal and external threads has a self-locking function, which can prevent the fan body 100 and the accessory 200 from loosening or falling off during use. The inclined surface design of the internal and external threads can generate friction during connection, making the connection more secure.

[0226] In other embodiments, the first structure 330 may further include at least one guide groove, and the second structure 340 may include at least one guide slider adapted to the guide groove, and the guide groove and the guide slider cooperate to fix the accessory 200 relative to the direction of the fan body 100.

[0227] In this way, the guide groove and the guide slider can provide a precise guide connection method, ensuring that the accessory 200 and the fan body 100 can be accurately aligned and positioned when connected.

[0228] In some examples, the first structure 330 may have multiple guide grooves, and the second structure 340 may have multiple guide sliders, with the number of guide grooves being equal to the number of guide sliders. By providing multiple guide grooves and multiple guide sliders, the alignment accuracy of the accessory 200 and the wind turbine body 100 can be improved.

[0229] In some embodiments, one of the fan body 100 and the accessory 200 is provided with an internal thread, and the other of the fan body 100 and the accessory 200 is provided with an external thread. When the internal thread and the external thread are connected, the directions of the accessory 200 and the fan body 100 are relatively fixed.

[0230] In this way, the connection method of internal thread and external thread can enable the connection between the accessory 200 and the fan body 100 to withstand greater tension or shear force, thereby improving the connection strength between the accessory 200 and the fan body 100 and the stability of direction fixation.

[0231] The connection between the internal and external threads has a self-locking function, which can prevent the fan body 100 and the accessory 200 from loosening or falling off during use. The inclined surface design of the internal and external threads can generate friction during connection, making the connection more secure.

[0232] In some embodiments, a guide groove is provided on one of the fan body 100 and the accessory 200, and a guide slider is provided on the other of the fan body 100 and the accessory 200. The guide groove is provided with a stop portion. The guide slider stops when it slides along the guide groove to the stop portion, and the accessory 200 and the fan body 100 are relatively fixed.

[0233] In this way, by setting a stop portion in the guide groove, the displacement range of the guide slider in the guide groove can be limited, preventing the accessory 200 and the fan body 100 from excessive displacement or offset during connection, thereby ensuring that the accessory 200 and the fan body 100 can be accurately aligned and positioned during connection, thereby improving the accuracy of the connection.

[0234] In some embodiments, the specific position of the stop portion in the guide groove can be set according to the connection requirements of the accessory 200 and the fan body 100. For example, when it is necessary to increase the connection stability between the accessory 200 and the fan body 100, the sliding distance of the guide slider in the guide groove can be increased to reduce the chance of the guide slider easily falling out of the guide groove. At this time, the stop portion needs to be set on the side of the guide groove farther from the entrance into which the guide slider slides, so that the guide slider can penetrate deeper into the guide groove.

[0235] In a possible implementation, the stop portion can be provided on a side wall of the guide groove, or the stop portion can be provided on a groove bottom of the guide groove facing away from the guide sliding block.

[0236] 21 and 22 , in some embodiments, when there are multiple protrusions 341 and multiple grooves 331 , the number of the protrusions 341 is less than or equal to the number of the grooves 331 .

[0237] In this way, by making the number of grooves 331 greater than the number of protrusions 341, when the user connects the accessory 200 to the blower body 100, the user can adjust a smaller angle, so that the protrusions 341 and part of the grooves 331 can be aligned and connected, thereby reducing the difficulty of aligning the protrusions 341 and the grooves 331, making it easier for the user to connect and fix the accessory 200 to the blower body 100, improving the ease of use of the hair care device, and improving the user experience.

[0238] It should be noted that the setting of all the above-mentioned anti-rotation mechanisms 300 not only realizes the anti-rotation function, but also can realize the connection between the accessory 200 and the fan body 100, such as the matching of internal and external threads, the matching of magnetic materials, etc. Even if the connection between the accessory 200 and the fan body 100 relies on other connection structures rather than just the above-mentioned anti-rotation mechanism 300, the setting of the anti-rotation mechanism 300 can also increase the connection stability of the accessory 200 to the fan body 100, and reduce the possibility of the accessory 200 falling off from the fan body 100, especially for accessories 200 that are larger in size or are subjected to more external forces during use, such as curling accessories, the setting of the anti-rotation mechanism 300 has a better effect.

[0239] Furthermore, by making the number of icons smaller than the number of grooves 331 , the manufacturing process of the hair care device can be simplified and the manufacturing cost of the hair care device can be reduced.

[0240] 21 and 22 , in some embodiments, the blower body 100 is provided with an air outlet 110, a groove 331 is formed on the wall surface near the air outlet 110, and the attachment 200 is provided with an air inlet 240, with the protrusion 341 correspondingly formed on the wall surface near the air inlet 240 of the attachment 200. When the attachment 200 is connected to the blower body 100, the air flow generated by the blower body 100 can be discharged from the air outlet 110 and further enter the attachment 200 through the air inlet 240 of the attachment 200. The attachment 200 is also provided with an exhaust port for providing air flow to the hair. The air flow in the attachment 200 can be delivered to the hair through the exhaust port for drying and styling the hair.

[0241] In this way, by opening the groove 331 on the wall of the fan body 100 air outlet 110 firmware, and opening the protrusion 341 on the wall of the accessory 200 air inlet 240 accessory 200, the groove 331 and the protrusion 341 can be matched when the air outlet 110 and the air inlet 240 are connected, thereby improving the connection efficiency between the accessory 200 and the fan body 100.

[0242] Referring to Figure 21, in some embodiments, the groove 331 extends along the axial direction of the fan body 100, and the notch 3311 of the groove 331 facing the accessory 200 is a semicircular or concave arc surface, and along the axial direction perpendicular to the fan body 100, the cross-section of the protrusion 341 is a semicircular or convex arc surface corresponding to the notch 3311.

[0243] Thus, since the semicircular or arcuate notch 3311 and the semicircular or arcuate convex portion 341 are easier to achieve precision and stability during the manufacturing process, the manufacturing difficulty is relatively low, which can reduce the manufacturing cost and difficulty of the hair care device. Furthermore, the semicircular notch 3311 and the semicircular convex portion 341 are less affected by directionality than polygonal shapes, making it easier for users to align the notch 331 with the convex portion 341, thereby improving the convenience of use of the hair care device.

[0244] In some embodiments, the groove wall of the groove 331 can be a smooth curved surface, and the outer side wall of the protrusion 341 can also be a smooth curved surface that matches the groove wall of the groove 331. By setting the groove wall of the groove 331 and the outer side wall of the protrusion 341 to smooth curved surfaces, the sliding friction between the outer side wall of the protrusion 341 and the inner side wall of the groove 331 can be reduced, thereby facilitating the movement of the protrusion 341 in the groove 331, thereby improving the connection efficiency between the accessory 200 and the blower body 100, and thereby improving the user experience of the hair care device.

[0245] In one possible implementation, the groove 331 may include a first groove segment and a second groove segment that communicate with each other. The first groove segment extends axially along the fan body 100, and one end of the second groove segment communicates with the first groove segment, extending circumferentially around the fan body 100. During connection of the accessory 200 to the fan body 100, the protrusion 341 moves along the extension direction of the first groove segment and along the extension direction of the second groove segment, thereby maintaining the relative orientation of the accessory 200 and the fan body 100.

[0246] In this way, the protrusion 341 is connected to the groove 331 having the first groove segment and the second groove segment, so that when the protrusion 341 is in the first groove segment, the accessory 200 can be fixed in the circumferential direction relative to the fan body 100. When the protrusion 341 is set in the second groove segment, the accessory 200 can be fixed in the axial direction relative to the fan body 100, thereby achieving directional fixation of the accessory 200 and the fan body 100 in at least two directions, thereby improving the connection stability between the accessory 200 and the fan body 100.

[0247] In one possible implementation, on the wall surface of the fan body 100, the groove 331 is arranged along the axial spiral of the fan body 100, and on the wall surface of the fan body 100, the protrusion 341 is arranged along the axial spiral of the fan body 100. When the protrusion 341 is matched with the groove 331 and connected, the direction of the accessory 200 and the fan body 100 is fixed.

[0248] In this way, by rotating the protrusion 341 along the extension direction of the groove 331 in a screwing manner, the groove 331 can limit and fix the protrusion 341 in both the axial direction of the fan body 100 and the axial direction around the fan body 100, so that the accessory 200 and the fan body 100 can be fixed in at least two mutually perpendicular directions, thereby improving the connection stability between the accessory 200 and the fan body 100, and thereby improving the use stability of the hair care device.

[0249] 22 and 23 , in some embodiments, the fan body 100 may include an annular member 120. The annular member 120 is disposed within the air outlet 110. The outer wall of the annular member 120 is spaced apart from the outer casing of the fan body 100. The outer wall of the annular member 120 and the outer casing of the fan body 100 form an annular groove 121. The accessory 200 includes a flange 260 that fits within the annular groove 121. When the accessory 200 is connected to the fan body 100, the flange 260 is disposed within the annular groove 121.

[0250] In this way, when the flange 260 is inserted into the annular groove 121, the annular groove 121 can limit the flange 260 in its radial direction, thereby preventing the accessory 200 from being offset or shaking relative to the axial direction of the fan body 100 when connected to the fan body 100, thereby improving the connection stability between the accessory 200 and the fan body 100, and thereby improving the use stability of the hair care device.

[0251] Furthermore, the design of the annular groove 121 can provide a certain degree of sealing for the connection between the accessory 200 and the fan body 100, preventing external substances such as dust and water vapor from entering the interior of the fan body 100 or the interior of the accessory 200 through the connection between the accessory 200 and the fan body 100, thereby reducing the chance of damage to the internal components of the fan body 100 and the internal components of the accessory 200, and improving the service life of the hair care device.

[0252] In some embodiments, the interior of the annular member 120 is in communication with the air outlet 110 along the axial direction of the blower body 100 , so that the airflow generated by the blower body 100 can be transported to the air inlet 240 of the accessory 200 through the interior of the annular member 120 .

[0253] 21 and 23 , in some embodiments, the groove 331 is formed on the outer sidewall of the annular member 120 , and the protrusion 341 is formed on the inner sidewall of the flange 260 .

[0254] In this way, by opening the groove 331 on the outer wall of the annular member 120 or the inner wall of the outer shell of the air outlet 110 of the fan body 100, and correspondingly arranging the protrusion 341 on the inner wall or outer wall of the flange 260, the accessory 200 can be fixed relative to the direction of the fan body 100 while the flange 260 is arranged in the annular groove 121, thereby further improving the connection stability between the accessory 200 and the fan body 100.

[0255] In a specific implementation, the groove 331 is opened on the inner side wall of the outer shell at the air outlet 110 of the fan body 100 , and the protrusion 341 is set on the outer side wall of the flange 260 .

[0256] By arranging the groove 331 on the outer side wall of the annular member 120, the integration between the various structures on the fan body 100 can be improved. At the same time, by arranging the protrusion 341 on the inner side wall of the flange 260 corresponding to the position of the groove 331, the protrusion 341 and the groove 331 can be located inside the structure, avoiding the protrusion 341 and the groove 331 from being exposed to the outside of the accessory 200 and the fan body 100, thereby improving the aesthetics of the accessory 200 and the fan body 100, and improving the aesthetics of the hair care device and the user experience.

[0257] 21 and 23 , in some embodiments, when there are multiple grooves 331 , the multiple grooves 331 are spaced apart on the outer wall of the annular member 120 , and when there are multiple protrusions 341 , the multiple protrusions 341 are spaced apart on the inner wall of the flange 260 .

[0258] In this way, by spacing and evenly arranging multiple grooves 331 on the outer wall of the annular member 120, and spacing and evenly arranging multiple protrusions 341 on the inner wall of the flange 260, the uniformity of force at the connection between the grooves 331 and the protrusions 341 can be improved, and the uniformity of force when the accessory 200 is connected to the fan body 100 can be improved.

[0259] In a possible implementation, the anti-rotation mechanism 300 may further include at least one clamping member, which is disposed in the groove 331 and is used to clamp the protrusion 341 that cooperates with the groove 331 .

[0260] In this way, by arranging a clamping member in the groove 331 to clamp the protrusion 341 located in the groove 331 through the clamping member, the protrusion 341 can be clamped in the groove 331 through the clamping force of the clamping member, thereby further improving the connection stability between the accessory 200 and the fan body 100 and preventing the accessory 200 from shaking or rotating relative to the fan body 100.

[0261] In an exemplary embodiment, the clamping member is an elastic member, which is arranged on the inner wall of the groove 331. When the protrusion 341 is inserted into the groove 331, the elastic member undergoes elastic deformation and fastens the protrusion 341 in the groove 331 through the elastic deformation force.

[0262] In this way, by setting the clamping member as an elastic member, the structure of the clamping member can be simplified, and the manufacturing process and production cost of the clamping member can be simplified, thereby reducing the manufacturing process and manufacturing cost of the hair care device and improving the practicality of the hair care device.

[0263] 21 and 22 , in some embodiments, the hair care device may further include a connecting mechanism 400. The connecting mechanism 400 may include a first connecting member 420 and a second connecting member 430 that are detachably connected. One of the first connecting member 420 and the second connecting member 430 is disposed on the fan body 100, and the other of the first connecting member 420 and the second connecting member 430 is disposed on the accessory 200. The fan body 100 and the accessory 200 are connected via the detachable connection of the first connecting member 420 and the second connecting member 430. For example, the first connecting member 420 may be disposed on the fan body 100, and the second connecting member 430 may be disposed on the accessory 200.

[0264] By providing the first connecting member 420 and the second connecting member 430 , the connection stability between the accessory 200 and the wind turbine body 100 can be further improved.

[0265] In some examples, the first connector 420 and the second connector 430 can both be magnetic connectors, one of which is provided on the accessory 200 and the other is provided on the fan body 100, so that the accessory 200 and the fan body 100 are connected through the connection of the two magnetic connectors.

[0266] 21 and 23 , in some embodiments, the wind turbine body 100 may further include a first mounting structure 130 . The first mounting structure 130 is disposed within the annular member 120 , and the first connector 420 is disposed on the first mounting structure 130 .

[0267] The accessory 200 includes a second mounting structure 250 , which is disposed in the air inlet 240 , and a second connecting member 430 is disposed on the second mounting structure 250 .

[0268] By arranging the first mounting structure 130 inside the annular member 120, the first connecting member 420 can be arranged inside the annular member 120, which can improve the compactness between the various components of the fan body 100, improve the space utilization inside the fan body 100, and compared with arranging the first connecting member 420 outside the fan body 100, it can improve the appearance of the fan body 100.

[0269] Similarly, arranging the second mounting structure 250 in the air inlet 240 and arranging the second connecting member 430 on the second mounting structure 250 can also improve the structural compactness between the various components on the accessory 200, improve the utilization rate of the internal space of the accessory 200, and improve the appearance of the accessory 200, thereby improving the practicality and aesthetics of the hair care device.

[0270] 23 , in some embodiments, the first mounting structure 130 may include a first connecting member 131 and a first bearing portion 132 , the first bearing portion 132 being connected to the inner side wall of the annular member 120 through the first connecting member 131 , and the first connector 420 being disposed on the first bearing portion 132 .

[0271] Continuing to refer to Figure 23, in some examples, there are multiple sub-air outlets 133 arranged at intervals along the circumference of the bearing portion between the outer peripheral side of the first bearing portion 132 and the inner wall of the annular member 120. The sub-air outlets 133 are connected to the air outlet 110, and the airflow generated by the fan body 100 can be transported to the accessory 200 through the sub-air outlets 133.

[0272] 21 , in some embodiments, the second mounting structure 250 includes a second connecting member 251 and a second supporting portion 252 . The second supporting portion 252 is connected to the inner wall of the air inlet 240 through the second connecting member 251 .

[0273] A plurality of sub-air inlets 253 are defined between the outer periphery of the second supporting portion 252 and the inner sidewall of the air inlet 240. The sub-air inlets 253 are arranged at intervals along the outer periphery of the second supporting portion 252 and communicate with the air inlet 240. A plurality of second connecting members 251 are provided, and the plurality of second connecting members 251 are arranged at intervals along the outer periphery of the second supporting portion 252, with a sub-air inlet 253 defined between every two adjacent second connecting members 251.

[0274] Referring to Figure 21, in some embodiments, the accessory 200 may include an adjusting portion 270 and a shaping portion 280. The adjusting portion 270 rotates relative to the shaping portion 280 to adjust the air outlet direction of the shaping portion 280. The shaping portion 280 is used to shape the target object through airflow. The first structure 330 and the second structure 340 are respectively arranged on the fan body 100 and the shaping portion 280. After the shaping portion 280 is connected to the fan body 100 and the adjusting portion 270 rotates relative to the shaping portion 280, the first structure 330 and the second structure 340 cooperate to fix the shaping portion 280 relative to the fan body 100.

[0275] In this way, the user can adjust the adjustment part 270, that is, can adjust the air outlet direction of the accessory 200. For example, the user can adjust the air outlet direction of the styling part 280 by rotating the adjustment part 270. When the adjustment part 270 is rotated, since the styling part 280 can be fixed relative to the direction of the fan body 100 through the cooperation of the first structure 330 and the second structure 340, the connection stability between the styling part 280 and the fan body 100 is improved, thereby avoiding the styling part 280 following the rotation of the adjustment part 270 when the user adjusts the air outlet 110 of the styling part 280 through the adjustment part 270, thereby improving the user's experience of using the hair care device.

[0276] In some embodiments, the air inlet 240 can be provided on the side of the styling portion 280 facing the blower body 100. When the second structure 340 of the anti-rotation mechanism 300 can be provided on the attachment 200, the second structure 340 can be provided on the outer or inner wall of the styling portion 280. The interior of the styling portion 280 is connected to the air inlet 240. The styling portion 280 is also provided with an exhaust port for delivering air to the hair. The air inside the styling portion 280 can be delivered to the hair through the exhaust port.

[0277] Part of the adjustment part 270 is arranged inside the shaping part 280. The user can adjust the air outlet direction and airflow strength of the exhaust port by rotating the adjustment part 270 according to needs, so that the part of the adjustment part 270 located inside the shaping part 280 can be adjusted.

[0278] 24 and 25 , in some embodiments, the axis of the fan body 100 is coaxial with or parallel to the axis of the accessory 200 , for example, the axis of the fan body 100 is coaxial with the axis of the accessory 200 , or the axis of the fan body 100 is parallel to the axis of the accessory 200 .

[0279] In this way, when the accessory 200 is a curling accessory 200 that can curl hair, by making the axis of the fan body 100 coaxial or parallel to the axis of the accessory 200, compared with the situation in the prior art where the axis of the accessory 200 intersects the circumference of the fan body 100, the fan body 100 is further away from the face, avoiding the problem of the fan body 100 conflicting with the face, and improving the user experience.

[0280] 24 , in some embodiments, the hair care device may further include a grip portion 500. The grip portion 500 is rotatably connected to the blower body 100 and can be rotated to a first position relative to the blower body 100. When the grip portion 500 is rotated to the first position, the axis of the grip portion 500 (as shown by the dotted line N in FIG. 24 ) is coaxial or parallel to the axis of the blower body 100.

[0281] In this way, when the accessory 200 is a curling accessory 200 that can curl hair, by rotatably connecting the grip portion 500 to the fan body 100, and making the grip portion 500 rotate to the first position, the axis of the grip portion 500 is coaxial or parallel to the axis of the fan body 100, thereby further achieving the coaxial or parallel axes of the accessory 200, the fan body 100 and the grip portion 500. Compared with the situation in the prior art where the axis of the grip portion 500 intersects with the axis of the fan body 100, the grip portion 500 can be further away from the user's face, avoiding the problem of the grip portion 500 abutting against the face of the user when using the hair care device, and is more conducive to the user using the hair care device to style the hair, thereby improving the convenience of using the hair care device.

[0282] With reference to Figures 24 and 25 , in other embodiments, the hair care device may further include a grip portion 500. The grip portion 500 is rotatably connected to the blower body 100 and is rotatable relative to the blower body 100 between a first position and a second position. When the grip portion 500 is rotated to the first position, the axis of the grip portion 500 is coaxial with or parallel to the axis of the blower body 100. When the grip portion 500 is rotated to the second position, the axis of the grip portion 500 is perpendicular to the axis of the blower body 100.

[0283] In this way, by enabling the grip portion 500 to rotate between the first position and the second position, the axes of the grip portion 500, the blower body 100 and the accessory 200 can be coaxial or parallel when the grip portion 500 is rotated to the first position, and the axes of the grip portion 500 and the blower body 100 can be perpendicular when the grip portion 500 is rotated to the second position, so that the hair care device can be held in two forms, thereby improving the convenience of use of the hair care device and enabling the user to have a selectable holding posture when using the hair care device, thereby improving the user's experience of using the hair care device.

[0284] 24 , in some embodiments, the gripping portion 500 can be rotated relative to the fan body 100 in a direction opposite to the air outlet 110 to reach the first position.

[0285] In this way, by rotating the grip portion 500 in the direction opposite to the air outlet 110 to reach the first position, compared to rotating it in the direction toward the air outlet 110, it is possible to avoid affecting the discharge of airflow at the air outlet 110 when the user rotates the grip portion 500 toward the first position when the fan body 100 is in operation, and it is possible to avoid mutual interference between the grip portion 500 and the accessory 200 provided at the air outlet 110 of the fan body 100, thereby improving the practicality of the hair care device.

[0286] 24 and 25 , in some embodiments, the hair care device may further include a grip portion 500. The grip portion 500 is rotatably connected to the fan body 100. The grip portion 500 can rotate between a first position and a second position relative to the fan body 100 and remain relatively fixed at any position. When the grip portion 500 rotates to the first position in a direction away from the air outlet 110, the axis of the grip portion 500 is coaxial or parallel to the axis of the fan body 100. When the grip portion 500 rotates to the second position, the axis of the grip portion 500 is perpendicular to the axis of the fan body 100.

[0287] In this way, the grip portion 500 can stay and be relatively fixed at any position between the first position and the second position relative to the blower body 100, allowing the user to have more usage angles. For example, the angle between the axial direction of the grip portion 500 and the axis of the blower body 100 can be 120°, 145° or 160°, so that the user can shape the target object from more angles by rotating the grip portion 500, further improving the practicality of the hair care device.

[0288] As shown in Figures 26 to 32, the present application provides a hair care device. In some achievable embodiments, as shown in Figures 26 to 31, a hair care device 1100 provided in an embodiment of the present application may include a main body 1110 and a handle 1120. The handle 1120 may be fixedly connected or rotatably connected to the main body 1110. The user may hold the handle 1120 and align one end of the main body 1110 with the hair to dry the hair. A motor 1160 may be disposed within the main body 1110. A fan blade may be disposed on one side of the motor 1160. The motor 1160 drives the fan blade to draw air from outside the main body 1110 into the main body 1110.

[0289] 27 and 28 , a first circuit board 1130 may be located within the main body 1110 and may have a first end 1131 and a second end 1132 that are opposite each other. The motor 1160 may include a motor inner wall 1163 and a motor outer wall 1164. The motor outer wall 1164 surrounds the motor inner wall 1163 to form an annular fluid flow channel 1161. The first end 1131 of the first circuit board 1130 is closer to the fluid flow channel 1161 than the second end 1132. The first end 1131 is offset from the central axis NN of the motor 1160, and the first circuit board 1130 is tilted relative to the central axis NN of the motor 1160.

[0290] The inclined direction formed by the first end 1131 extending to the second end 1132 enables the airflow flowing out of the motor 1160 with an area greater than half of the cross-sectional area of ​​the fluid flow channel 1161 to flow in a diffuse manner.

[0291] In the embodiment of the present application, by tilting the first circuit board 1130 relative to the central axis NN of the motor 1160, the size of the first circuit board 1130 occupied in the main body 1110 along the central axis NN of the motor 1160 can be reduced. Therefore, the size of the main body 1110 along the central axis NN of the motor 1160 can be set smaller, which is conducive to realizing the overall miniaturization design of the hair care device 1100 and making it convenient for users to carry it when going out.

[0292] The first circuit board 1130 is tilted relative to the central axis NN of the motor 1160, enabling it to function as a flow guide. The first circuit board 1130, through its tilted surface, can diffuse airflow greater than half the cross-sectional area of ​​the fluid flow channel 1161 toward the outwardly discharging area of ​​the main body 1110, ensuring sufficient airflow from the main body 1110 to meet user needs.

[0293] Moreover, since the first end 1131 of the first circuit board 1130 is close to the fluid flow channel 1161 of the motor 1160, the airflow generated in the annular fluid flow channel 1161 in the motor 1160 with an area greater than half of the cross-sectional area of ​​the fluid flow channel 1161 can flow through one side surface of the first circuit board 1130, so as to take away the heat on the first circuit board 1130 through the flow of airflow, thereby achieving heat dissipation treatment of the heat generated on the first circuit board 1130.

[0294] In summary, the tilted positioning of the first circuit board 1130 in the embodiment of the present application can reduce the dimensions of the main body 1110 along the central axis NN of the motor 1160, facilitating a compact design for the hair care device 1100. Furthermore, the tilted positioning of the first circuit board 1130 provides a guiding function. By setting the tilt of the first circuit board 1130, it allows the majority of the airflow generated within the fluid flow channel 1161 to be diffused, thereby achieving the desired airflow volume required for hair drying by the user. When the airflow within the fluid flow channel 1161 passes over the surface of the tilted first circuit board 1130, it can also dissipate heat generated by the first circuit board 1130 to the exterior of the main body 1110, thereby dissipating heat from the first circuit board 1130.

[0295] Therefore, the embodiment of the present application can achieve heat dissipation treatment for the first circuit board 1130 in the main body 1110 while meeting the air output of the hair care device 1100, and realize a miniaturized design of the hair care device 1100.

[0296] Specifically, taking the orientation shown in Figure 28 as an example, with the central axis NN of the motor 1160 parallel to the horizontal, the motor 1160 can draw ambient air into the main body 1110 from the right side and release the air from the left side of the main body 1110 for drying hair. The second end 1132 of the first circuit board 1130 can be tilted downward relative to the first end 1131. In this case, a portion of the airflow from the motor 1160 can be diffused downward along the inclined surface of the first circuit board 1130 to meet the required air output of the hair care device 1100. As the airflow flows along the surface of the first circuit board 1130, heat on the first circuit board 1130 can be removed from the main body 1110.

[0297] 29 and 30 , the cross-sectional area of ​​the airflow at the first end 1131 of the first circuit board 1130 may be smaller than the cross-sectional area of ​​the airflow at the second end 1132 of the first circuit board 1130 . The cross-sectional area may be perpendicular to the central axis NN of the motor 1160 .

[0298] In some examples, the body 1110 can rotate freely relative to the handle 1120 to form a foldable hair care device 1100. During use, the body 1110 and the handle 1120 can be angled to facilitate operation. When traveling, the user can fold the hair care device 1100 to reduce the angle between the body 1110 and the handle 1120, making it easier for the user to carry around.

[0299] In some possible implementations, as shown in FIG. 28 to FIG. 30 , the first end 1131 of the first circuit board 1130 can divide the fluid flow channel 1161 into a first fluid flow channel 11611 and a second fluid flow channel 11612 .

[0300] The cross-sectional area of ​​the first fluid flow channel 11611 may be relatively larger than the cross-sectional area of ​​the second fluid flow channel 11612. The inclined direction formed by the first end 1131 extending to the second end 1132 causes the airflow flowing out of the motor 1160 from the first fluid flow channel 11611 to flow in a diffuse manner.

[0301] It should be noted that the cross-section of the first fluid flow channel 11611 and the cross-section of the second fluid flow channel 11612 may be perpendicular to the central axis NN of the motor 1160 .

[0302] In this embodiment of the present application, the first circuit board 1130 can function as a flow divider. Because the cross-sectional area of ​​the first fluid flow channel 11611 can be relatively larger than that of the second fluid flow channel 11612, the majority of the airflow can flow out of the first fluid flow channel 11611 to dry the hair. The airflow from the first fluid flow channel 11611 flows through one side of the first circuit board 1130 to dissipate heat generated thereon, while a smaller portion of the airflow from the second fluid flow channel 11612 flows through the opposite side of the first circuit board 1130 to dissipate heat generated thereon. Therefore, by providing the first circuit board 1130 to divide the fluid flow channel 1161 into the first fluid flow channel 11611 and the second fluid flow channel 11612, heat can be dissipated from both sides of the first circuit board 1130, thereby improving the heat dissipation efficiency of the first circuit board 1130 and enhancing its service life and operational reliability.

[0303] It should be noted that the first circuit board 1130 of the present embodiment can achieve fluid guidance and diversion through its own structure. This eliminates the need for additional diversion components on the first circuit board 1130, reducing the cost of adding diversion structures and reducing the space occupied by the diversion structure within the main body 1110, thereby facilitating the miniaturization and portability of the hair care device 1100.

[0304] In some examples, the airflow rate released by the first fluid flow channel 11611 is greater than the airflow rate released by the second fluid flow channel 11612 , so that hair is dried mainly through the airflow released by the first fluid flow channel 11611 .

[0305] In some examples, the airflow released by the second fluid flow channel 11612 can be combined with the airflow released by the first fluid flow channel 11611 and used together with the airflow released by the first fluid flow channel 11611 to dry hair.

[0306] In some achievable embodiments, as shown in Figures 28 and 30, the main body 1110 may have a central axis MM, the motor 1160 may be eccentrically arranged relative to the central axis MM of the main body 1110, and the central axis MM of the main body 1110 is parallel to the central axis NN of the motor 1160.

[0307] In the embodiment of the present application, by arranging the motor 1160 eccentrically relative to the central axis MM of the main body 1110, the motor 1160 can be positioned close to one inner wall of the main body 1110. Correspondingly, the structure for securing the motor 1160 and the structure cooperating with the motor 1160 are also eccentrically positioned near the motor 1160, thereby providing space for the first circuit board 1130. This can facilitate a more compact layout of the components within the main body 1110, thereby improving the space utilization within the main body 1110. As a result, the size of the main body 1110 can be designed to be smaller, thereby facilitating a miniaturized and lightweight design of the hair care device 1100.

[0308] Among them, most of the airflow generated by motor 1160 can flow in the direction of the central axis NN of motor 1160. Since motor 1160 is eccentrically arranged relative to the central axis MM of main body 1110, most of the airflow generated by motor 1160 is also easily concentrated in the eccentric direction relative to the central axis MM of main body 1110, so that the airflow is released eccentrically, resulting in a large airflow flow in a local area during blowing, and uneven blowing, which in turn affects the drying effect and even the user experience. Therefore, through the guiding and diverting effects of the first circuit board 1130, the eccentric airflow can be dispersed so that the airflow can be released relatively evenly. This combines volume reduction with uniform air output, which is conducive to improving the uniformity of blowing.

[0309] Specifically, taking the direction shown in FIG. 29 as an example, the motor 1160 is eccentrically upward relative to the central axis MM of the main body 1110, and the airflow generated by the motor 1160 is also concentrated upward. Therefore, the second end 1132 of the first circuit board 1130 can be set downward relative to the first end 1131. A portion of the airflow generated in the first fluid flow channel 11611 is released downward along the upper surface of the first circuit board 1130, and the airflow generated in the second fluid flow channel 11612 is also released downward through the lower surface of the first circuit board 1130. This allows the portion of the concentrated upward airflow to be dispersed downward, which is beneficial for achieving uniform air blowing.

[0310] In some possible implementations, the first circuit board 1130 may not divide the fluid flow channel 1161 .

[0311] In this embodiment of the present application, the first circuit board 1130 can function as a guide rather than a diverter. The airflow from the motor 1160 can flow through a side surface of the first circuit board 1130, where it is diffused and released. The entire airflow generated by the motor 1160 is used to dry the hair. This ensures that the hair care device 1100 has sufficient airflow during drying, improving drying efficiency. Furthermore, the airflow flowing through this side surface dissipates heat generated there, helping to maintain the operational reliability of the first circuit board 1130.

[0312] In some achievable embodiments, as shown in FIG. 30 , the shortest distance L1 between the first circuit board 1130 and the center axis MM of the main body 1110 is less than or equal to the shortest distance L2 between the first circuit board 1130 and the center axis NN of the motor 1160 .

[0313] When the motor 1160 is positioned eccentrically relative to the central axis MM of the main body 1110, the motor 1160 is relatively close to one inner wall of the main body 1110, forming a larger eccentric space 1110d on the side opposite the eccentricity. As can be readily appreciated, the majority of airflow flowing directly out of the motor 1160 is unlikely to enter the eccentric space 1110d. When the shortest distance L1 between the first circuit board 1130 and the central axis MM of the main body 1110 is less than or equal to the shortest distance L2 between the first circuit board 1130 and the central axis NN of the motor 1160, more than half of the first circuit board 1130 can be located within the eccentric space 1110d. Since the airflow through the eccentric space 1110d is relatively low, the first circuit board 1130 can occupy most of the eccentric space 1110d, minimizing airflow loss due to the placement of the first circuit board 1130 and ensuring a good airflow for the compact hair care device 1100.

[0314] Correspondingly, when the motor 1160 is eccentrically arranged relative to the central axis MM of the main body 1110, if the distance L1 between the first circuit board 1130 and the central axis MM of the main body 1110 is greater than the distance L2 between the first circuit board 1130 and the central axis NN of the motor 1160, more than half of the first circuit board 1130 is located on the flow path of most of the airflow flowing out of the motor 1160, and the first circuit board 1130 is likely to interfere with the airflow, thereby affecting the blowing effect.

[0315] In some possible implementations, as shown in FIG. 30 , a straight line passing through the center N of the motor 1160 and the center M of the main body 1110 is perpendicular to a horizontal plane where the first end 1131 or the second end 1132 is located.

[0316] In this embodiment of the present application, when the motor 1160 is eccentrically positioned relative to the central axis MM of the main body 1110, the motor 1160 is relatively close to one inner wall of the main body, forming a larger eccentric space 1110d on the side opposite the eccentricity. By arranging a line passing through the center N of the motor 1160 and the center M of the main body 1110 perpendicular to the horizontal plane of the first end 1131 or the second end 1132, the entire first circuit board 1130 can be positioned to the greatest extent possible within the eccentric space 1110d between the motor outer wall 1164 and the inner wall of the main body 1110. In other words, along the radial direction of the motor 1160, the majority of the first circuit board 1130 can be staggered relative to the motor 1160. The first circuit board 1130 minimally interferes with the airflow flowing out of the motor 1160, allowing the majority of the airflow from the motor 1160 to be blown out to affect the hair, thereby minimizing airflow loss.

[0317] In some implementations, as shown in Figures 28 and 30 , the main body 1110 can include an upper inner shell 1111 and a lower inner shell 1112. The upper inner shell 1111 and the lower inner shell 1112 are connected to form a storage space. The first circuit board 1130 can be fixed in the storage space. The airflow flowing out of the second fluid flow channel 11612 can flow between the first circuit board 1130 and the lower inner shell 1112.

[0318] In the embodiment of the present application, the accommodation space can be used to accommodate the first circuit board 1130 and the motor 1160. The airflow from the motor 1160 can flow through the accommodation space and be released.

[0319] The central axis NN of the motor 1160 can be close to the upper inner shell 1111. Therefore, an eccentric space 1110d can be formed between the motor outer wall 1164 and a portion of the lower inner shell 1112. By arranging the airflow flowing out of the second fluid flow channel 11612 to flow between the first circuit board 1130 and the lower inner shell 1112, most of the first circuit board 1130 can be located in the eccentric space 1110d, and a small portion of the airflow in the fluid flow channel 1161 flows out through the second fluid flow channel 11612. Therefore, it is beneficial to maintain the gas flow in the first fluid flow channel 11611 and reduce the obstruction of the fluid flow channel 1161 by the first circuit board 1130, which is beneficial to meet the required air volume.

[0320] In some examples, when the motor 1160 is disposed close to the upper inner shell 1111 , the first circuit board 1130 is located in the eccentric space 1110 d opposite to the eccentric direction, which is beneficial for achieving mass balance within the main body 1110 .

[0321] In some examples, the upper inner shell 1111 and the lower inner shell 1112 can be connected by snapping, pressing or bonding, which is not limited in this application.

[0322] In some embodiments, as shown in FIG. 30 , a ratio of the shortest distance R1 between the center N of the motor 1160 and the first circuit board 1130 to a radius R2 of the motor outer wall 1164 is 0.6:1 to 1:1.

[0323] Among them, the ratio of the shortest distance R1 between the center N of the motor 1160 and the first circuit board 1130 to the radius R2 of the motor outer wall 1164 can be used to represent the degree of eccentricity of the first circuit board 1130 relative to the central axis NN of the motor 1160. The radius R2 of the motor outer wall 1164 remains unchanged. When the first circuit board 1130 is set close to the central axis NN of the motor 1160, the smaller the shortest distance R1 between the center N of the motor 1160 and the first circuit board 1130, the smaller the ratio of R1 to R2. When the ratio of R1 to R2 is less than 0.6:1, the first circuit board 1130 blocks the airflow out of the motor 1160 to a large extent, which is likely to cause air loss and affect the drying efficiency. In addition, the first circuit board 1130 may be too close to the center N of the motor 1160, and the protruding structure of the motor center N may interfere with the first circuit board 1130, thereby causing structural failure. When the first circuit board 1130 is positioned relatively far from the central axis NN of the motor 1160, the shorter the shortest distance R1 between the center N of the motor 1160 and the first circuit board 1130, the greater the ratio of R1 to R2. When the ratio of R1 to R2 is greater than 1:1, the inclination of the first circuit board 1130 is too gentle, which is not conducive to the design of a small hair care device. Therefore, by setting the ratio of R1 to R2 between 0.6:1 and 1:1, the heat dissipation effect of the first circuit board 1130 can be guaranteed while ensuring sufficient air flow.

[0324] In some implementations, as shown in FIG. 28 , a fluid inlet 1110a and a fluid outlet 1110b are provided at each end of the main body 1110. The motor 1160 can draw air from the external environment into the main body 1110 through the fluid inlet 1110a and release it through the fluid outlet 1110b to dry the hair. A heating element 1170 can be provided within the main body 1110. The heating element 1170 is positioned relative to the motor 1160 and closer to the fluid outlet 1110b. The first circuit board 1130 is positioned between the motor 1160 and the heating element 1170.

[0325] The heating element 1170 can be used to heat the airflow within the main body 1110. The airflow from the motor 1160 can be heated after passing through the heating element 1170. When the heated fluid is released through the fluid outlet 1110b, it can accelerate the evaporation of water vapor on the surface of the hair, which helps to increase the drying rate of the user's hair.

[0326] In the embodiment of the present application, the airflow flows from the fluid inlet 1110a to the fluid outlet 1110b, and the temperature of the airflow flowing out of the motor 1160 is relatively low before entering the heating component 1170. Therefore, by arranging the first circuit board 1130 in the space between the motor 1160 and the heating component 1170, the heat generated on the first circuit board 1130 can be first removed by the relatively low-temperature airflow flowing out of the motor 1160, thereby dissipating heat from the first circuit board 1130. The airflow then enters the heating component 1170 and is discharged from the fluid outlet 1110b. Therefore, the first circuit board 1130 being located between the motor 1160 and the heating component 1170 can help reduce the possibility of malfunction caused by the high heat of the first circuit board 1130 itself, and the space between the motor 1160 and the heating component 1170 can also be cooled by the airflow.

[0327] In some achievable embodiments, referring to FIG. 28 and FIG. 31 , the first circuit board and the heat generating component 1170 of the embodiment of the present application may be spaced apart.

[0328] In one embodiment of the present application, during operation of the hair care device 1100, the motor 1160 and the heating element 1170 are activated, causing airflow to flow from the fluid inlet 1110a to the fluid outlet 1110b. Airflow passes through the heating element 1170, causing the airflow to heat up and exit the hair care device 1100. When the hair care device 1100 stops operating, the motor 1160 and the heating element 1170 also stop operating. While the motor 1160 stops operating, the airflow ceases, and the heating element 1170 stops operating, the temperature around the heating element 1170 does not immediately drop to room temperature. This causes a transient temperature rise around the heating element 1170. By separating the first circuit board 1130 from the heating element 1170, the hot airflow is less likely to cause thermal damage to the first circuit board 1130 during this transient temperature rise, thereby protecting the first circuit board 1130.

[0329] In some achievable embodiments, the interval between the first circuit board 1130 and the heat generating component 1170 in the embodiment of the present application may range from 0 to 20 mm.

[0330] When the distance between the first circuit board 1130 and the heating element 1170 is set to be larger, the size of the main body 1110 along the central axis MM is likely to increase, thereby increasing the overall size of the hair care device 1100, affecting the miniaturization and storage portability of the hair care device 1100. Therefore, by setting the distance between the first circuit board and the heating element 1170 to be less than or equal to 20 mm, the miniaturization and portability of the hair care device 1100 can be achieved while better protecting the first circuit board 1130.

[0331] In some implementations, as shown in FIG28 and FIG31 , a spacer 1114 may be provided near the first circuit board 1130 of the heat generating component 1170 . The first circuit board 1130 may abut against the spacer 1114 .

[0332] The spacer 1114 provides a distance between the first circuit board 1130 and the heating element, preventing damage to the first circuit board 1130 from the instantaneous high temperature when the hair care device 1100 switches from the active state to the inactive state. Furthermore, the spacer 1114 facilitates installation by simply placing the first circuit board 1130 against the spacer 1114.

[0333] In some examples, the spacer 1114 can be a separate component, fixed to the inner wall of the heating component 1170 or the main body 1110 by gluing, clamping, or other methods. Alternatively, the spacer 1114 can also be a part of the heating component 1170 or the main body 1110, which is not limited in this application. It should be noted that the spacer 1114 does not have a heating function.

[0334] For example, the heating component 1170 extends toward the first circuit board 1130 to form a spacer 1114. The heating component 1170 may include a heating wire and a heating frame. The spacer 1114 may protrude from the surface of the heating frame facing the first circuit board 1130. The spacer 1114 and the heating frame may be integrally formed. The second end 1132 of the first circuit board 1130 may abut against the spacer 1114.

[0335] For example, along the direction of the central axis MM of the main body 1110, the width of the spacer 1114 can be 5 mm, 8 mm, 15 mm, etc., which is not limited in the present application.

[0336] In some possible implementations, the first circuit board 1130 is fixedly connected to at least one of the heating component 1170 , the main body 1110 , and a fixing frame (not shown) of the motor 1160 .

[0337] In the embodiment of the present application, the first circuit board 1130 can be fixed in the main body 1110 by connecting to one of the fixing brackets of the heating component 1170, the main body 1110, and the motor 1160. When air flows through the main body 1110, the connection stability of the first circuit board 1130 can be maintained.

[0338] In some examples, the first circuit board 1130 may be fixed in a manner that is, but not limited to, the first end 1131 is connected to a fixing frame of the motor 1160 , and the second end 1132 may be connected to the spacer 1114 on the heating component 1170 .

[0339] Exemplarily, the first end 1131 may be engaged with a fixing bracket of the motor 1160 , and the second end 1132 may abut against the spacer 1114 .

[0340] In some examples, the mounting bracket for motor 1160 may be formed on the inner wall of main body 1110. In other words, the mounting bracket for motor 1160 may be integral with main body 1110. Alternatively, the mounting bracket may be a separate component. The mounting bracket may be secured to the inner wall of main body 1110 by means of a snap connection, adhesive connection, or the like.

[0341] In some implementations, the mounting bracket may be provided with a groove (not shown). The first circuit board 1130 may be snap-fitted into the groove. Alternatively, the first circuit board 1130 may be adhesively bonded to the walls forming the groove. Furthermore, the first circuit board 1130 may be snap-fitted into the groove and adhesively bonded to the walls of the groove.

[0342] In some examples, the first circuit board 1130 is easily fixed to the main body 1110 by snapping. When the first circuit board 1130 fails, it can be easily repaired or replaced, and tool-free disassembly and assembly can be achieved, which helps improve the efficiency of the maintenance process.

[0343] In some implementations, at least one of the fixing frame and the heating component 1170 may be provided with an elastic member (not shown). The elastic member may contact the first circuit board 1130 to perform elastic limiting.

[0344] In the embodiment of the present application, the first circuit board 1130 can be fixed between the motor 1160 and the heating element 1170 via an elastic member. During the installation of the first circuit board 1130, the first circuit board 1130 can apply a force to the elastic member, which in turn applies a reaction force to the first circuit board 1130. Since the elastic member can produce elastic deformation, it can buffer the reaction force of the elastic member on the first circuit board 1130, thereby reducing the damage to the first circuit board 1130. Subsequently, under the action of the elastic member, the first circuit board 1130 can be held against the fixing frame or the heating element 1170.

[0345] FIG32 is a schematic diagram of the three-dimensional structure of another hair care device 1100 provided in this application.

[0346] In some implementations, as shown in FIG32 , the hair care device 1100 may further include a second circuit board 1140 . The second circuit board 1140 is electrically connected to the first circuit board 1130 . The second circuit board 1140 may be used to share the voltage on the first circuit board 1130 .

[0347] When the hair care device 1100 is used in a high-voltage power environment, according to the power formula P = UI = I2R, the current flowing through the first circuit board 1130 is relatively low in a high-voltage power environment (e.g., 220V), maintaining normal operation of the first circuit board 1130. When the hair care device 1100 is used in a low-voltage power environment (e.g., 110V), maintaining the power consumption is necessary to improve hair drying efficiency. However, if the power consumption of the hair care device 1100 remains unchanged, the current flowing through the first circuit board 1130 is high, which can easily cause the first circuit board 1130 to malfunction, thereby affecting the normal operation of the hair care device 1100 and the user experience.

[0348] In the embodiment of the present application, by adding a second circuit board 1140, while ensuring the electrical power of the hair care device 1100, the second circuit board 1140 and the first circuit board 1130 can be used together to share the high voltage in a low-voltage power environment to maintain the normal operation of the first circuit board 1130.

[0349] In some possible implementations, as shown in FIG. 32 , the second circuit board 1140 may be located within the main body 1110 .

[0350] In some examples, the airflow from the motor 1160 may flow through the second circuit board 1140 to dissipate heat from the second circuit board 1140 .

[0351] The position of the second circuit board 1140 in the main body 1110 is not limited in this application.

[0352] In some implementations, the second circuit board 1140 may be provided with an electronic component 1142. The electronic component 1142 is at least one of a rectifier bridge, an NTC thermistor, and a fuse.

[0353] In this embodiment of the present application, the electronic components 1142 on the second circuit board 1140 can be used to share the voltage on the first circuit board 1130. The rectifier bridge, NTC thermistor, and fuse generate a lot of heat. Providing these electronic components 1142 on the second circuit board 1140 can reduce the heat generated on the first circuit board 1130 and reduce the heat dissipation pressure on the first circuit board 1130.

[0354] Among them, the rectifier bridge can be used to convert the voltage of the AC power supply into the voltage of the DC power supply and keep the current direction consistent.

[0355] NTC (Negative Temperature Coefficient) thermistors can be used for temperature measurement, circuit protection, temperature compensation, temperature control, and other applications on the second circuit board 1140 .

[0356] When the current on the second circuit board 1140 rises to a certain height or temperature, or other abnormal phenomena occur, the fuse can cut off the current by melting itself to protect the safe operation of the circuit in the hair care device 1100.

[0357] In some examples, the electronic component 1142 may be located on one side surface of the second circuit board 1140 , or the electronic component 1142 may be provided on both sides of the second circuit board 1140 , which is not limited in the embodiments of the present application.

[0358] In some implementations, as shown in FIG31 , the airflow from the first fluid flow channel 11611 can flow through the first side 1133 of the first circuit board 1130. The airflow from the second fluid flow channel 11612 can flow through the second side 1134 of the first circuit board 1130. Both the first side 1133 and the second side 1134 can be provided with a plurality of electronic components 1142.

[0359] The highest height of the electronic components 1142 on the first side 1133 may be smaller than the highest height of the electronic components 1142 on the second side 1134 .

[0360] In this embodiment of the present application, the airflow from the first fluid channel 11611 is primarily used for drying hair. The airflow from the first fluid channel 11611 can flow through the first side 1133 of the first circuit board 1130 and be released through the fluid outlet 1110b. Therefore, the height of the electronic component 1142 on the first side 1133 should be minimized to minimize the possibility of the electronic component 1142 blocking the first fluid channel 11611 and affecting the airflow of the hair care device 1100.

[0361] In some examples, among the plurality of electronic components 1142 on the first side 1133 or the plurality of electronic components 1142 on the second side 1134 , electronic components 1142 with relatively low heights may be disposed close to the motor 1160 .

[0362] In the embodiment of the present application, the smallest electronic component 1142 can be placed close to the motor 1160 to reduce the possibility of its own height blocking the air flow, thereby affecting the air volume released at the fluid outlet 1110b.

[0363] In some examples, the heights of the electronic components 1142 may increase sequentially in the direction from the fluid inlet 1110a to the fluid outlet 1110b. This can, on the one hand, prevent the electronic components 1142 with higher heights from affecting the airflow to other electronic components 1142 and affecting the heat dissipation effect of other electronic components 1142. On the other hand, it can also prevent the electronic components 1142 from blocking the airflow to the direction of the fluid outlet 1110b, thereby affecting the air output of the fluid outlet 1110b.

[0364] In some examples, the electronic components 1142 on the first circuit board 1130 can adopt technologies such as micro components or surface mounted devices (SMD) to reduce the overall size of the first circuit board 1130.

[0365] In some examples, the plurality of electronic components 1142 may be compactly arranged to fully utilize the space on the first circuit board 1130 .

[0366] In some examples, high-power components in the electronic components 1142 can be made of high-power-density, miniaturized chips. For example, SiC chips can be used instead of traditional silicon power devices to reduce the overall size of the first circuit board 1130.

[0367] In some implementations, as shown in Figures 28 and 31 , a wiring space 1110c may be formed between the second side 1134 of the first circuit board 1130 and the main body 1110. The wiring space 1110c may allow cables to pass through.

[0368] The wiring space 1110c of the present embodiment can be used to accommodate connecting wires. For example, the connecting wires electrically connecting the first circuit board 1130 and the second circuit board 1140, or the connecting wires connecting the first circuit board 1130 to other components such as the motor 1160 and the heating element 1170, etc. All of these connecting wires can be arranged in the wiring space 1110c.

[0369] By arranging the connecting wires in the wiring space 1110c, the interference of the connecting wires on the airflow flowing out of the motor 1160 can be reduced, and the internal space can be reasonably utilized, which further helps to reduce the volume of the hair care device 1100.

[0370] Furthermore, the connecting cable is flexible and easily affected by the fluid and blown toward the heating element 1170. Specifically, if the connecting cable is short, the cable remains stressed while the motor 1160 drives the fluid, potentially causing the cable to detach from the first circuit board 1130 and partially disable the hair care device 1100. On the other hand, if the connecting cable is long, portions of the cable could be blown toward the heating element 1170 while the motor 1160 drives the fluid, potentially damaging the cable due to the high temperatures generated by the heating element 1170.

[0371] In summary, placing the connecting wires in the wiring space 1110c can effectively solve the above technical problems.

[0372] In some implementations, as shown in FIG32 , a third circuit board 1150 may be provided in the handle 1120 . The third circuit board 1150 is electrically connected to at least one of the first circuit board 1130 and the second circuit board 1140 .

[0373] In the embodiment of the present application, electrical conduction can be established between the first circuit board 1130, the second circuit board 1140, and the third circuit board 1150. When the hair care device 1100 is used in a low-voltage (e.g., 110V) power environment, the first circuit board 1130, the second circuit board 1140, and the third circuit board can be used to share voltage, thereby improving the operational reliability of the first circuit board 1130, the second circuit board 1140, and the third circuit board 1150 and preventing the possibility of a fault caused by excessive voltage on one of the first circuit board 1130, the second circuit board 1140, and the third circuit board 1150, thereby affecting the normal operation of the hair care device 1100.

[0374] In some embodiments, as shown in FIG27 , the main body 1110 may further include a protective shell 1113. The upper inner shell 1111 and the lower inner shell 1112 may be located within the protective shell 1113. The heating component 1170 may be located near the fluid outlet 1110 b and connected to at least one of the upper inner shell 1111 and the lower inner shell 1112.

[0375] In this embodiment of the present application, the motor 1160 can be located within the accommodation space formed by the upper inner shell 1111 and the lower inner shell 1112. The ends of the upper inner shell 1111 and the lower inner shell 1112 away from the motor 1160 can be connected to the heating component 1170. The heating component 1170, the upper inner shell 1111, and the lower inner shell 1112 can all be located within the protective shell 1113.

[0376] Example 2

[0377] This embodiment of the present application further provides a hair care device 1100, wherein the same features as those in the first embodiment are not repeated.

[0378] As shown in Figures 26 to 32, the hair care device 1100 according to an embodiment of the present application may include a main body 1110 and a handle 1120. The handle 1120 may be fixedly connected or rotatably connected to the main body 1110. A first circuit board 1130 may be located within the main body 1110 and may have a first end 1131 and a second end 1132 opposite each other. The first end 1131 is located closer to the air outlet 1162 of the motor 1160 than the second end 1132. The first end 1131 is offset from the central axis NN of the motor 1160, and the first circuit board 1130 is tilted relative to the central axis NN of the motor 1160.

[0379] The inclined direction formed by the first end 1131 extending to the second end 1132 enables the airflow of more than half of the outlet area flowing out of the outlet 1162 of the motor 1160 to flow in a diffuse manner.

[0380] In the embodiment of the present application, by tilting the first circuit board 1130 relative to the central axis NN of the motor 1160, the size of the first circuit board 1130 occupied in the main body 1110 along the central axis NN of the motor 1160 can be reduced. Therefore, the size of the main body 1110 along the central axis NN of the motor 1160 can be set smaller, which is conducive to realizing the overall miniaturization design of the hair care device 1100 and making it convenient for users to carry it when going out.

[0381] The first circuit board 1130 is tilted relative to the central axis NN of the motor 1160, providing a diversion effect. The first circuit board 1130 can diffuse airflow from the air outlet 1162 of the motor 1160, encompassing more than half of the air outlet area, toward the outwardly released area of ​​the main body 1110 through its tilted surface. This ensures that the main body 1110 has sufficient airflow to meet user needs.

[0382] Moreover, since the first end 1131 of the first circuit board 1130 is close to the air outlet 1162 of the motor 1160, the airflow greater than half of the air outlet area generated by the air outlet 1162 of the motor 1160 can flow through one side surface of the first circuit board 1130, so as to take away the heat on the first circuit board 1130 through the flow of airflow, thereby achieving heat dissipation treatment of the heat generated on the first circuit board 1130.

[0383] In summary, the first circuit board 1130 in the embodiment of the present application can be tilted to reduce the size of the main body 1110 along the central axis NN direction of the motor 1160, thereby facilitating a miniaturized design of the hair care device 1100. The tilted first circuit board 1130 serves as a guide. By setting the tilt of the first circuit board 1130, it allows the majority of the airflow generated by the air outlet 1162 to be released in a diffused manner, allowing the majority of the airflow to be directed toward the user's hair, thereby meeting the user's hair drying air volume requirements. When the airflow from the air outlet 1162 of the motor 1160 passes over the surface of the tilted first circuit board 1130, it can also dissipate heat generated by the first circuit board 1130 to the exterior of the main body 1110, thereby dissipating heat from the first circuit board 1130.

[0384] Therefore, the embodiment of the present application can achieve heat dissipation treatment for the first circuit board 1130 in the main body 1110 while meeting the air output of the hair care device 1100, and realize a miniaturized design of the hair care device 1100.

[0385] Specifically, taking the orientation shown in Figure 28 as an example, with the central axis NN of the motor 1160 parallel to the horizontal, the motor 1160 can draw ambient air into the main body 1110 from the right side and release the air from the left side of the main body 1110 for drying hair. The second end 1132 of the first circuit board 1130 can be tilted downward relative to the first end 1131. In this case, a portion of the airflow from the motor 1160 can be diffused downward along the inclined surface of the first circuit board 1130 to meet the required air output of the hair care device 1100. As the airflow flows along the surface of the first circuit board 1130, heat on the first circuit board 1130 can be removed from the main body 1110.

[0386] In some implementations, as shown in Figures 28 to 30 , the first end 1131 of the first circuit board 1130 divides the air outlet 1162 into a first air outlet 11621 and a second air outlet 11622. The area of ​​the first air outlet 11621 can be relatively larger than that of the second air outlet 11622. The inclined direction formed by the extension from the first end 1131 to the second end 1132 causes the airflow from the first air outlet 11621 to flow in a diffuse manner.

[0387] In this embodiment of the present application, the first circuit board 1130 can function as a flow divider. Because the area of ​​the first air outlet 11621 can be relatively larger than that of the second air outlet 11622, the majority of the airflow from the motor 1160 can flow out of the first air outlet 11621 for hair drying. The majority of the airflow from the motor 1160 flows through the first air outlet 11621 onto one side of the first circuit board 1130 to dissipate heat generated thereon. A smaller portion of the airflow from the motor 1160 can flow through the second air outlet 11622 onto the opposite side of the first circuit board 1130 to dissipate heat generated thereon. Therefore, by providing the first circuit board 1130 to divide the air outlet 1162 of the motor 1160 into the first air outlet 11621 and the second air outlet 11622, heat can be dissipated from both sides of the first circuit board 1130, improving the heat dissipation efficiency of the first circuit board 1130 and increasing its service life and operational reliability.

[0388] It should be noted that the first circuit board 1130 of the present embodiment can achieve fluid guidance and diversion through its own structure. This eliminates the need for additional diversion components on the first circuit board 1130, reducing the cost of adding diversion structures and reducing the space occupied by the diversion structure within the main body 1110, thereby facilitating the miniaturization and portability of the hair care device 1100.

[0389] In some implementations, as shown in Figures 28 and 30 , the main body 1110 has a central axis MM. The motor 1160 is eccentrically disposed relative to the central axis MM of the main body 1110, and the central axis MM of the main body 1110 is parallel to the central axis NN of the motor 1160. The first circuit board 1130 may not separate the air outlet 1162.

[0390] In this embodiment of the present application, the first circuit board 1130 can function as a guide rather than a diverter. The airflow from the motor 1160 can flow through a side surface of the first circuit board 1130, where it is diffused and released. The entire airflow generated by the motor 1160 is used to dry the hair. This ensures that the hair care device 1100 has sufficient airflow during drying, improving drying efficiency. Furthermore, the airflow flowing through this side surface dissipates heat generated there, helping to maintain the operational reliability of the first circuit board 1130.

[0391] In some implementations, as shown in Figures 28 and 30 , the main body 1110 includes an upper inner shell 1111 and a lower inner shell 1112. The upper inner shell 1111 and the lower inner shell 1112 are connected to form a storage space. A first circuit board 1130 is secured within the storage space, and air flowing out of the second air outlet 11622 flows between the first circuit board 1130 and the lower inner shell 1112.

[0392] In the embodiment of the present application, the central axis NN of the motor 1160 can be close to the upper inner shell 1111. Therefore, an eccentric space 1110d can be formed between the motor outer wall 1164 and a portion of the lower inner shell 1112. By arranging the airflow flowing out of the second air outlet 11622 to flow between the first circuit board 1130 and the lower inner shell 1112, most of the first circuit board 1130 can be located in the eccentric space 1110d. Therefore, the airflow flowing from the second air outlet 11622 to the eccentric space 1110d can be less, which is conducive to maintaining the air flow out of the first air outlet 11621. The airflow out of the first air outlet 11621 can be smoothly released through the main body 1110 to meet the blowing efficiency.

[0393] In some achievable embodiments, as shown in FIG. 30 , the area ratio of the first air outlet 11621 to the second air outlet 11622 is greater than 0 and less than 4.2.

[0394] The first end 1131 of the first circuit board 1130 can divide the air outlet 1162 of the motor 1160 into a first air outlet 11621 and a second air outlet 11622. The airflow from the first air outlet 11621 is diffused and primarily used for drying hair, and can also be used to dissipate heat from one side of the first circuit board 1130. The airflow from the second air outlet 11622 can be used to dissipate heat from the other side of the first circuit board 1130.

[0395] Because the air blown out of the first air outlet 11621 plays a primary role in drying hair, the area ratio of the first air outlet 11621 to the second air outlet 11622 should be at least greater than 0 and less than 4.2 to maintain drying efficiency. Furthermore, the area ratio of the first air outlet 11621 to the second air outlet 11622 can be less than 4.2 to allow airflow to flow through both sides of the first circuit board 1130. Therefore, when electronic components 1142 are provided on both sides of the first circuit board 1130, the airflow flowing through both sides of the first circuit board 1130 can dissipate heat from both sides of the first circuit board 1130. This ensures that the airflow rate of the hair care device 1100 is maintained while dissipating heat from the first circuit board 1130.

[0396] In some implementations, as shown in Figures 28 and 31 , the airflow from the first air outlet 11621 flows through the first side 1133 of the first circuit board 1130, and the airflow from the second air outlet 11622 flows through the second side 1134 of the first circuit board 1130. A plurality of electronic components 1142 are provided on both the first side 1133 and the second side 1134.

[0397] The highest height of the electronic components 1142 on the first side 1133 is smaller than the highest height of the electronic components 1142 on the second side 1134 .

[0398] In this embodiment of the present application, the airflow from the first air outlet 11621 is primarily used for drying hair. Therefore, the height of the electronic component 1142 on the first side 1133 should be minimized to reduce the possibility of the electronic component 1142 blocking the first air outlet 11621 and affecting the air output of the hair care device 1100.

[0399] In some examples, among the plurality of electronic components 1142 on the first side 1133 or the plurality of electronic components 1142 on the second side 1134 , electronic components 1142 with relatively low heights may be disposed close to the motor 1160 .

[0400] In an embodiment of the present application, the smallest electronic component 1142 can be arranged close to the motor 1160 to reduce the possibility that its own height will block the first air outlet 11621 or the second air outlet 11622, thereby affecting the air volume released at the fluid outlet 1110b.

[0401] In some examples, the height of the electronic components 1142 can be increased sequentially in the direction from the fluid inlet 1110a to the fluid outlet 1110b. On the one hand, this can prevent the electronic components 1142 with higher heights from affecting the airflow to other electronic components 1142, thereby affecting the heat dissipation effect of other electronic components 1142. On the other hand, it can also prevent the electronic components 1142 from blocking the first air outlet 11621 or the second air outlet 11622, thereby affecting the air output of the hair care device 1100.

[0402] In some implementations, as shown in Figures 28 and 31 , the airflow from the first air outlet 11621 flows through the first side 1133 of the first circuit board 1130, and the airflow from the second air outlet 11622 flows through the second side 1134 of the first circuit board 1130. A wiring space 1110c is formed between the second side 1134 and the main body 1110, allowing cables to pass through.

[0403] By arranging the connecting wires in the wiring space 1110c, the interference of the connecting wires on the airflow flowing out of the motor 1160 can be reduced, and the internal space can be reasonably utilized, which further helps to reduce the volume of the hair care device.

[0404] Furthermore, the flexible cable is easily affected by the fluid and blown toward the heating element 1170. Specifically, if the cable is short, it will remain stressed while the motor 1160 drives the fluid, potentially causing it to detach from the first circuit board 1130 and partially disable the hair care device 1100. On the other hand, if the cable is long, portions of it could be blown toward the heating element 1170 during the fluid movement, potentially damaging the cable due to the high temperatures generated by the heating element 1170. Providing routing space for the connector effectively addresses this issue.

[0405] As shown in Figures 33 to 41, the present application also provides an air outlet and a hair care device.

[0406] Referring to Figures 33-36 , this embodiment provides an air outlet member 510 including an air outlet wall 5200, on which are disposed an annular first air outlet 5300 and a second air outlet 5400. The second air outlet 5400 is spaced apart radially inward of the first air outlet 5300 (i.e., a portion of the first air outlet 5300 and a portion of the second air outlet 5400 are located on the same diameter of the air outlet wall 5200, and the second air outlet 5400 is disposed near the center O of the air outlet wall 5200). In this embodiment, the first air outlet 5300 and the second air outlet 5400 are arranged in an annular shape around the air outlet wall 5200, such as a circular ring, a rectangular ring, a triangular ring, etc. The shapes of the first air outlet 5300 and the second air outlet 5400 can be the same or different.

[0407] The ratio of the inner diameter r1 of the first air outlet 5300 to the inner diameter r2 of the second air outlet 5400 is between 1.2 and 1.6.

[0408] It will be understood that the first air outlet 5300 includes a first side and a second side facing each other, with the first side facing the outer edge of the air outlet wall surface 5200 of the annular wall 5100. The inner diameter r1 of the first air outlet 5300 refers to the distance between the second side of the first air outlet 5300 and the center O of the air outlet wall surface 5200. The second air outlet 5400 includes a third side and a fourth side facing each other, with the fourth side facing the center of the air outlet wall surface 5200 of the annular wall 5100. The inner diameter r2 of the second air outlet 5400 refers to the distance between the fourth side of the second air outlet 5400 and the center O of the air outlet wall surface 5200.

[0409] Compared with the single air outlet solution in the related art, this embodiment limits the values ​​of r1:r2 to between 1.2 and 1.6. This allows the radial width of the air outlet on the air outlet wall 5200 to be increased (i.e., the sum of the radial dimensions of the first air outlet 5300 and the second air outlet 5400 on the air outlet wall 5200 is greater than the radial dimensions of the single air outlet on the air outlet wall 5200 in the related art) while keeping the overall area of ​​the air outlet unchanged (i.e., the sum of the areas of the first air outlet 5300 and the second air outlet 5400 in this embodiment is equal to the area of ​​the single air outlet in the related art). This improves the air output of the entire hair care device, increases the air outlet area of ​​the air outlet, and enables the hair care device to have a better heat dissipation effect, thereby meeting users' needs for miniaturized and lightweight hair care devices.

[0410] Figure 37 is a schematic diagram of the air output under different values ​​of r2 of the present application; wherein, the horizontal axis represents the value of r2, the vertical axis represents the air output, the value of r1 remains fixed, and only the value of r2 is changed, thereby changing the value of r1:r2.

[0411] Based on Figure 37, it can be seen that when the value of r1 remains constant, the airflow gradually increases as the value of r2 increases. When the value of r2 is between 14-15mm, the airflow reaches its maximum. When the value of r2 exceeds 15mm, the airflow decreases rapidly. When the value of r2 is between 14-15mm, the value of r1:r2 is exactly between 1.2-1.6. Therefore, limiting the value of r1:r2 to 1.2-1.6 can improve the airflow of the hair care device, increase the airflow area of ​​the air outlet, and achieve better heat dissipation, thus meeting users' demand for miniaturized and lightweight hair care devices.

[0412] This embodiment further provides an air outlet member 510, comprising an air outlet wall 5200, on which are disposed an annular first air outlet 5300 and a second air outlet 5400, with the second air outlet 5400 being spaced apart radially inward of the first air outlet 5300 (i.e., a portion of the first air outlet 5300 and a portion of the second air outlet 5400 are located on the same diameter of the air outlet wall 5200, and the second air outlet 5400 is disposed near the center O of the air outlet wall 5200). In this embodiment, the first air outlet 5300 and the second air outlet 5400 are arranged in an annular shape around the air outlet wall 5200, such as a circular ring, a rectangular ring, a triangular ring, etc. The shapes of the first air outlet 5300 and the second air outlet 5400 may be the same or different.

[0413] The ratio of the outer diameter R1 of the first air outlet 5300 to the outer diameter R2 of the second air outlet 5400 is between 1.2 and 1.5.

[0414] It will be understood that the first air outlet 5300 includes a first side and a second side facing each other, with the first side facing the outer edge of the air outlet wall surface 5200 of the annular wall 5100. The outer diameter R1 of the first air outlet 5300 refers to the distance between the first side of the first air outlet 5300 and the center O of the air outlet wall surface 5200. The second air outlet 5400 includes a third side and a fourth side facing each other, with the fourth side facing the center of the air outlet wall surface 5200 of the annular wall 5100. The outer diameter R2 of the second air outlet 5400 refers to the distance between the third side of the second air outlet 5400 and the center O of the air outlet wall surface 5200.

[0415] Compared with the single air outlet solution in the related art, this embodiment limits the value of R1:R2 to between 1.2-1.5. By utilizing the principle of air flow, the air outlet nozzle changes the radial width of the air outlet to adjust the air outlet angle and wind direction of the hair care device, thereby enhancing the air outlet wind force.

[0416] Figure 38 is a schematic diagram of the air outlet volume under different values ​​of R2 of the present application; wherein, the air outlet area (i.e., the sum of the areas of the first air outlet 5300 and the second air outlet 5400) is constant, and only the value of R2 is changed, thereby changing the value of R1:R2.

[0417] Based on Figure 38, it can be seen that when the air outlet area is constant, the air volume gradually increases as the R2 value increases. When the R2 value is between 15-15.5mm, the air volume reaches its maximum. After the R2 value exceeds 15.5mm, the air volume slowly decreases. When the R2 value is between 15-15.5mm, the R1:R2 value is exactly between 1.2-1.5. Therefore, limiting the R1:R2 value to between 1.2-1.5 can increase the air volume of the hair care device and enhance the wind force.

[0418] This embodiment further provides an air outlet member 510, comprising an air outlet wall 5200, on which are disposed an annular first air outlet 5300 and a second air outlet 5400. The second air outlet 5400 is spaced apart radially inward of the first air outlet 5300 (i.e., a portion of the first air outlet 5300 and a portion of the second air outlet 5400 are located on the same diameter of the air outlet wall 5200, and the second air outlet 5400 is disposed near the center O of the air outlet wall 5200). In this embodiment, the first air outlet 5300 and the second air outlet 5400 are arranged in an annular shape around the air outlet wall 5200, such as a circular ring, a rectangular ring, a triangular ring, etc. The shapes of the first air outlet 5300 and the second air outlet 5400 can be the same or different.

[0419] The ratio of the width W1 of the first air outlet 5300 to the width W2 of the second air outlet 5400 is between 0.8 and 0.95.

[0420] It will be appreciated that the first air outlet 5300 includes a first side and a second side that are opposite each other, with the first side facing the outer edge of the air outlet wall surface 5200 of the annular wall 5100. The inner diameter r1 of the first air outlet 5300 refers to the distance between the second side of the first air outlet 5300 and the center O of the air outlet wall surface 5200; the outer diameter R1 of the first air outlet 5300 refers to the distance between the first side of the first air outlet 5300 and the center O of the air outlet wall surface 5200; and the width W1 of the first air outlet 5300 is R1-r1. The second air outlet 5400 includes a third side and a fourth side relative to each other, and the fourth side faces the center of the air outlet wall 5200 of the annular wall 5100; the inner diameter r2 of the second air outlet 5400 refers to the distance between the fourth side of the second air outlet 5400 and the center O of the air outlet wall 5200; the outer diameter R2 of the second air outlet 5400 refers to the distance between the third side of the second air outlet 5400 and the center O of the air outlet wall 5200; the width W2 of the second air outlet 5400 is R2-r2.

[0421] Compared with the single air outlet solution in the related art, this embodiment limits the value of W1:W2 to between 0.8-0.95. The first air outlet 5300 and the second air outlet 5400 ensure the width of the overall air outlet, so that the air flow direction of the air outlet is unified and stable, and the air volume and wind pressure at the air outlet are increased, thereby improving the efficiency of users using hair care equipment.

[0422] In some embodiments, an annular wall 5100 is provided along the circumference of the air outlet wall surface 5200, protruding toward the air inlet 5900. The annular wall 5100 is connected to the air outlet wall surface 5200 and together define a fluid flow channel 5110. In this embodiment, the annular wall 5100 is generally cylindrical, and the fluid flow channel 5110 communicates with the interior of the hair care device. The air generated by the hair care device passes through the fluid flow channel 5110 and is ultimately blown out from the first air outlet 5300 and the second air outlet 5400.

[0423] In this embodiment, the annular wall 5100 and the air outlet wall 5200 jointly define a fluid flow channel 5110 , so that the air outlet of the hair care device can be introduced into the fluid flow channel 5110 and then blown out through the first air outlet 5300 and the second air outlet 5400 .

[0424] In some embodiments, a plurality of first air outlets 5300 and a plurality of second air outlets 5400 are provided on the air outlet wall 5200 , and the plurality of first air outlets 5300 and the plurality of second air outlets 5400 are arranged at intervals around the center O of the air outlet wall 5200 .

[0425] First guide ribs 5500 are provided between the plurality of first air outlets 5300 , and the first guide ribs 5500 are arranged at intervals between two adjacent first air outlets 5300 .

[0426] Second guide ribs 5600 are provided between the plurality of second air outlets 5400 , and the second guide ribs 5600 are arranged at intervals between two adjacent second air outlets 5400 .

[0427] In this embodiment, a first guide rib 5500 is set between two adjacent first air outlets 5300, and a second guide rib 5600 is set between two adjacent second air outlets 5400, so that the first guide rib 5500 and the second guide rib 5600 can be used to guide the direction of the airflow in the first air outlet 5300 and the second air outlet 5400 respectively, optimize the distribution of the airflow, enhance the stability of the airflow, and make the air outlet generate soft wind, so as to reduce the impact of the airflow on the user's skin.

[0428] Furthermore, along the axis T of the fluid flow channel 5110, the width of the first guide rib 5500 gradually decreases from the side of the air outlet wall 5200 to the side of the fluid flow channel 5110, and the width of the second guide rib 5600 gradually decreases from the side of the air outlet wall 5200 to the side of the fluid flow channel 5110.

[0429] Through the above structure, this embodiment makes the air flow in the first air outlet 5300 and the second air outlet 5400 smoother, which is beneficial to increasing the air output and power of the entire machine.

[0430] Preferably, the maximum width D1 of the first guide rib 5500 of this embodiment is less than or equal to 2 mm; the maximum width D2 of the second guide rib 5600 is less than or equal to 2 mm.

[0431] This embodiment limits the maximum width of the first guide rib 5500 and the second guide rib 5600 to within 2 mm, thereby ensuring that the first air outlet 5300 and the second air outlet 5400 have good airflow distribution and airflow stability, while also ensuring that the air output of the first air outlet 5300 and the second air outlet 5400 is large.

[0432] In some embodiments, as shown in FIG35 , the multiple first guide ribs 5500 and the multiple second guide ribs 5600 of this embodiment are symmetrically arranged in the radial or axial direction of the air outlet wall 5200 , for example, a one-to-one correspondence can be achieved when folded in the axial or radial direction.

[0433] In this embodiment, the first guide rib 5500 can be used to support the first air outlet 5300 to enhance the structural strength of the first air outlet 5300 and prevent deformation or damage; correspondingly, the second guide rib 5600 can be used to support the second air outlet 5400 to enhance the structural strength of the second air outlet 5400 and prevent deformation or damage.

[0434] In other embodiments, the plurality of first guide ribs 5500 and the plurality of second guide ribs 5600 of this embodiment are asymmetrically arranged in the radial or axial direction of the air outlet wall surface 5200, for example, in a staggered distribution form.

[0435] In this embodiment, multiple first guide ribs 5500 and multiple second guide ribs 5600 are staggered in the radial direction of the air outlet wall 5200, so that multiple first air outlets 5300 and second air outlets 5400 are asymmetrically arranged on the air outlet wall 5200, so as to reduce the resonance between the first air outlets 5300 and the second air outlets 5400 when blowing air, reduce wind noise, and make the air outlet closer to natural wind.

[0436] In some embodiments, as shown in Figure 35, in a plane perpendicular to the axis T of the fluid flow channel 5110, the projection of the air outlet wall 5200 is circular, the projections of multiple first air outlets 5300 are arranged in a first circular ring around the projection center of the air outlet wall 5200, and the projections of multiple second air outlets 5400 are arranged in a second circular ring around the projection center of the air outlet wall.

[0437] In this embodiment, the plurality of first air outlets 5300 and the plurality of second air outlets 5400 are arranged in a circular ring shape, so that the first air outlets 5300 and the second air outlets 5400 have a larger area on the circular air outlet wall 5200, which is beneficial to increasing the air outlet volume and the air outlet area.

[0438] Furthermore, in this embodiment, the plurality of first air outlets 5300 and the plurality of second air outlets 5400 are arranged concentrically, and the centers of the plurality of first air outlets 5300 and the plurality of second air outlets 5400 are both located on the axis of the air outlet wall 5200. The axis of the air outlet wall 5200 coincides with the axis T of the fluid flow channel 5110.

[0439] In this embodiment, the centers of the first air outlet 5300 and the second air outlet 5400 are both arranged on the axis of the air outlet wall 5200 , thereby ensuring the uniformity of air outlet at all locations of the first air outlet 5300 and the second air outlet 5400 .

[0440] 33 and 35 , in this embodiment, a separation rib 5700 is provided between the first air outlet 5300 and the second air outlet 5400 . Along the radial direction of the air outlet wall 5200 , a dimension D3 of the separation rib 5700 is 1-3 mm.

[0441] This embodiment limits the size D3 of the dividing rib 5700 between the first air outlet 5300 and the second air outlet 5400 to within 1-3 mm, so that the airflow in the first air outlet 5300 and the second air outlet 5400 has a stronger compression effect, which is beneficial to increasing the air output and reducing the noise of the entire machine.

[0442] Furthermore, along the radial direction of the air outlet wall surface 5200, R1-r2 is 3-8 mm.

[0443] In this embodiment, by limiting R1-r2 to 3-8 mm, the airflow forms a strong wall effect between the first air outlet 5300 and the second air outlet 5400, thereby improving the gas compression effect.

[0444] In some embodiments, a mounting portion 5800 is further provided on the air outlet wall 5200 of this embodiment, and the second air outlet 5400 surrounds the outer side of the mounting portion 5800. The side of the mounting portion 5800 facing the fluid flow channel 5110 is hemispherical.

[0445] In this embodiment, the mounting portion 5800 is arranged to be hemispherical on one side facing the fluid flow channel 5110, so that the mounting portion 5800 can be used to guide the direction of the airflow in the fluid flow channel 5110, so that the airflow accumulates toward the first air outlet 5300 and the second air outlet 5400, which is beneficial to increase the air output.

[0446] Furthermore, as shown in Figure 36, in this embodiment, the angle α between the tangent line of the hemispherical surface and the air outlet wall surface 5200 is less than 50°. The tangent line of the hemispherical surface refers to a straight line on the hemispherical surface that is perpendicular to the radius.

[0447] Through the above structure, this embodiment can make the overall air output of the hair care device softer while increasing the air output in the first air outlet 5300 and the second air outlet 5400. When the user uses a styling accessory to connect the hair care device, it can not only meet the user's styling needs but also protect the user's skin without causing the loss of air volume of the styling accessory.

[0448] Figure 39 is a schematic diagram of the air outlet area of ​​an embodiment of the present application and an air outlet according to related art. Referring to Figure 39 , in this embodiment, along the axis T of the fluid flow channel 5110 , the radius L1 of the air outlet surface of the air outlet member 510 at a distance of 100 mm from the air outlet wall is greater than or equal to 100 mm.

[0449] Through the above structure, this embodiment ensures that the radius L1 of the wind surface of the air outlet member 510 at a distance of 100 mm from the air outlet wall is greater than or equal to 100 mm, thereby ensuring that the hair care device has a strong air outlet volume and air outlet area to meet the user's usage needs.

[0450] The effects of this embodiment will be described in detail below with reference to the accompanying drawings.

[0451] Figure 39 shows a schematic diagram of the air outlet area of ​​the blower after passing through the air outlet of the air outlet member. In the figure, S1 is a schematic diagram of the air outlet area when the air outlet member with a single air outlet is in use in the related art; S2 and S3 are schematic diagrams of the increased air outlet area when the air outlet member of this embodiment is in use compared to the air outlet member with a single air outlet in the related art. As can be seen from Figure 37, since the first air outlet 5300 and the second air outlet 5400 are simultaneously provided on the air outlet wall 5200 of this embodiment, the air outlet area of ​​the air outlet member is the sum of S1, S2 and S3, which is much larger than the air outlet area S1 of the air outlet member with a single air outlet in the related art. Therefore, the air outlet member 510 of this embodiment can increase the air volume and increase the air outlet area.

[0452] Figure 40 is a gas flow diagram when the air outlet device in the related art is in use; Figure 41 is a gas flow diagram when the air outlet member provided in an embodiment of the present application is in use.

[0453] Please refer to Figure 40. When the air outlet device 1000 in the related art is connected to the hair care device 520 and the styling attachment 530, the air outlet 1200 of the air outlet device 1000 is set close to the edge of the air outlet device 1000. Part of the hot air U1 generated by the heating component 521 of the hair care device 520 can be sent into the styling attachment 530 or blown into the outside air through the air outlet 1200, while the other part of the hot air U2 will be blocked by relevant components on the air outlet device 1000 and accumulated in the fluid flow channel and cannot be discharged in time, thereby causing the heat generated by the hair care device 520 to be unable to dissipate in time.

[0454] Please refer to Figure 41. When the air outlet piece 510 of this embodiment is connected to the hair care device 520 and the styling attachment 530, the first air outlet 5300 of the air outlet piece 510 is set close to the edge of the air outlet piece 510, and the second air outlet 5400 is close to the axis of the fluid flow channel in the air outlet piece 510. The hot air U3 generated by the heating component 521 of the hair care device 520 can be sent into the styling attachment 530 or blown into the outside air through the first air outlet 5300 and the second air outlet 5400. Since the sum of the radial dimensions of the first air outlet 5300 and the second air outlet 5400 in the air outlet wall is greater than the radial dimension of the air outlet wall of the related art, U3 is greater than U1, that is, the air outlet piece of this embodiment has a larger air outlet volume, thereby bringing out more heat generated by the heating component 521, which is beneficial to the heat dissipation of the hair care device 520.

[0455] 40 , in addition, when the air outlet 1200 supplies air to the styling accessory 530 , due to the small size of the air outlet 1200 , the air produces a large noise inside the styling accessory 530 , thereby affecting the user experience.

[0456] Please refer to Figure 41. When the first air outlet 5300 and the second air outlet 5400 of this embodiment supply air to the styling accessory 530, the overall size of the air outlet is increased, so the noise generated by the air outlet inside the styling accessory 530 is smaller, thereby improving the user experience.

[0457] It can be seen from the above description that this embodiment sets the first air outlet 5300 and the second air outlet interval, and limits the value of r1:r2 to between 1.2-1.6, the value of R1:R2 to between 1.2-1.5, and / or the value of W1:W2 to between 0.8-0.95. Compared with the single air outlet in the related art, the width of the air outlet in the radial direction of the air outlet wall 5200 is increased while the overall area of ​​the air outlet remains unchanged, thereby increasing the air outlet volume, increasing the air outlet area, and enabling the hair care device to have a better heat dissipation effect.

[0458] This embodiment also provides a hair care device, including the air outlet member 510 described above.

[0459] It is understandable that, due to the use of the above-mentioned air outlet member, the hair care device of this embodiment has a higher air outlet volume and a larger air outlet area, while also improving the heat dissipation effect of the miniaturized hair care device.

[0460] The present application also provides a hair care device, as shown in Figures 42 to 52, the hair care device includes an air outlet tube 810, a fan assembly 830, a heating structure 850 and a handle 840, the air outlet tube 810 has an air inlet 8112, an air outlet 8111 and a first channel structure 8110 extending along a first direction, the fan assembly 830 is installed inside the first channel structure 8110, the fan assembly 830 has a second channel structure 8311 extending along the first direction, the heating structure 850 is arranged inside the first channel structure 8110, and the handle 840 is connected to the air outlet tube 810, wherein the axis of the second channel structure 8311 is farther away from the handle 840 relative to the axis of the first channel structure 8110, so as to form an accommodating space between the fan assembly 830 and the air outlet tube 810.

[0461] Specifically, the hair care device of the present application forms a mounting cavity between the fan assembly 830 and the air outlet 810 by eccentrically positioning the fan assembly 830 within the first channel structure 8110. Due to the eccentric structure, the mounting cavity of the present application allows for proper wiring and component installation. The eccentric positioning of the fan assembly 830 within the first channel structure 8110 of the air outlet 810 of the present application is suitable for the structure of a miniaturized air outlet 810, thereby effectively utilizing the internal space of the air outlet 810 and facilitating assembly. Furthermore, by effectively utilizing the internal space of the air outlet 810, the present application also helps improve the user experience of the hair care device. Furthermore, when the axis of the second channel structure 8311 is further away from the handle 840 than the axis of the first channel structure 8110, a storage space is formed between the fan assembly 830 and the air outlet 810. The provision of this storage space increases the installation space, making it easier for the air outlet wiring to pass through the handle when entering, thus facilitating installation.

[0462] Furthermore, under the action of the fan assembly 830 , the gas flows from the air inlet 8112 through the second channel structure 8311 and the first channel structure 8110 in sequence and then flows to the air outlet 8111 .

[0463] Furthermore, the three axes of the first channel structure 8110, the second channel structure 8311 and the handle 840 are located in the same plane, and the fan assembly 830 is located directly above the handle 840 so that the area between the fan assembly 830 and the handle 840 forms an installation cavity to reasonably utilize the internal space of the air outlet tube 810.

[0464] It should be noted that the handle 840 and the air outlet tube 810 can be fixedly connected, or the handle 840 and the air outlet tube 810 can be rotatably connected to achieve the technical effect of being able to fold the handle 840.

[0465] In this embodiment, the hair care device also includes a first control panel 8910 and a second control panel 8920, the first control panel 8910 is arranged inside the handle 840, and the second control panel 8920 is arranged inside the air outlet tube 810, wherein the first control panel 8910 and the second control panel 8920 are electrically connected, and the total heat generation of the power device arranged on the first control panel 8910 is less than the total heat generation of the power device arranged on the second control panel 8920.

[0466] It should be noted that the power devices on the first control board 8910 and the second control board 8920 generate heat during operation. The split structure of the first control board 8910 and the second control board 8920 helps reduce the space occupied within the air outlet 810 while also making rational use of the space within the handle 840, thereby improving the overall space efficiency of the hair care device. Specifically, the first control board 8910 and the second control board 8920 can be adaptively configured with specific shapes and structures. Furthermore, the second control board 8920 is equipped with power devices that generate a relatively high amount of heat. Since the second control board is located within the air outlet, the airflow within the flow channel can dissipate heat from the second control board, thereby extending the lifespan of the power devices on the second control board and improving performance.

[0467] In this embodiment, the surface of the second control plate 8920 is arranged along the direction of the fluid and deviates from the central axis of the air outlet tube 810, thereby reducing obstruction to the fluid and ensuring the efficiency and intensity of the air outlet.

[0468] In another embodiment of the present specification, since the second control panel 8920 is arranged inside the air outlet 810, it will block the airflow to a certain extent, which may generate noise and reduce the airflow speed, reduce the flow rate and other effects. Therefore, the volume of the power device on the first control panel 8910 can be larger than the volume of the power device on the second control panel 8920. It can be understood that the smaller power device in the hair care device is set on the second control panel 8920, which can minimize the impact of the second control panel 8920 on the fluid in the air outlet 810, thereby ensuring the efficiency and intensity of the air outlet.

[0469] As shown in Figures 42 to 52, the hair care device further includes a control switch module 8930, which is disposed inside the air outlet tube 810 and connected to the heating structure 850. The control switch module 8930 is disposed separately from the second control panel 8920.

[0470] The heating structure includes a support frame and a heating wire wound on the support frame; the control switch module 8930 includes a thyristor, a thyristor, a relay, a high-voltage MOS, etc.

[0471] Specifically, the control switch module 8930 itself is a heating element. The control switch module 8930 is set inside the air outlet duct 810. When the wind flows through the control switch module 8930, the control switch module 8930 can be dissipated. The control switch module 8930 is connected to the heating structure 850 to facilitate the control of the heating structure 850, and then the wind inside the air outlet duct 810 is heated through the heating structure 850.

[0472] Furthermore, the control switch module 8930 is located on the central axis of the air outlet 810 and upstream of the heating structure 850. Since the control switch module 8930 is located on the central axis of the air outlet 810, the heat dissipation efficiency of the control switch module 8930 is improved during the flow of fluid. At the same time, since the control switch module 8930 is located upstream of the heating structure 850, the fluid is initially heated by the control switch module 8930 and then heated again after flowing to the heating structure 850. The dual heating structure arrangement is conducive to improving the heating efficiency of the fluid.

[0473] Furthermore, a protruding structure is provided on one side of the heating structure 850 near the air inlet 8112, and the control switch module 8930 is mounted on the protruding structure, which provides a mounting position for the control switch module 8930. Specifically, the protruding structure and the control switch module 8930 can be connected by riveting, thereby improving the stability of the connection between the heating structure 850 and the control switch module 8930.

[0474] Furthermore, the control switch module 8930 is arranged in the central area of ​​the heating structure 850 on the side facing the air inlet 8112. On the one hand, since the heating wire is wound on the support frame, thereby forming a ring-shaped or theoretically ring-shaped heating space, it is farthest from the heating wire on the axis of the support frame. Therefore, the control switch module 8930 is arranged in the central area of ​​the heating structure on the side facing the air inlet. This can make the control switch module farther away from the heating wire, reducing the impact of the heat of the heating wire on the control switch module, and at the same time, it is beneficial to take away the heat emitted by the control switch module 8930 through the flow of cooler gas, so that the heat dissipation effect is better while ensuring that the normal flow of the flow channel is not affected.

[0475] In this embodiment, the second control board 8920 is vertically arranged in the air outlet 810 and is located on one side of the control switch module 8930. The second control board 8920 can be a PCB board. The vertical arrangement can be understood as the PCB board being a plate-shaped design, which is snapped onto the inner wall of the air outlet 810. Furthermore, in order to consider the small size of the hair care device as a whole, the PCB board surface can cover the control switch module 8930, and at the same time, it should be as far away from the control switch module 8930 as possible. Therefore, the second control board 8920 can be deviated from the center of the air outlet 810. The central axis is set to minimize the obstruction to the fluid flow, and the control switch module is set on the central axis of the air outlet 810. This can avoid the heat of the control switch module 8930 affecting the second control board 8920. Therefore, the second control board 8920 is set on one side of the control switch module 8930; at the same time, the second control board 8920 in this embodiment is upright inside the air outlet 810, which is convenient for the installation of the second control board 8920, and is also beneficial for electrical connection with the heating structure 850 and the fan assembly 830 inside the air outlet 810.

[0476] As shown in Figures 42 to 52, the hair care device also includes an inner shell 820, which is installed inside the first channel structure 8110. The inner shell 820 has an installation channel extending along the first direction. The fan assembly 830 is installed in the installation channel. An elastic sleeve 8310 is also provided between the fan assembly 830 and the inner shell 820, wherein the elastic sleeve 8310 is used to position the motor 8320 of the fan assembly 830.

[0477] Specifically, the fan assembly 830 is installed inside the installation channel of the inner shell 820, and the fan assembly 830 and the inner shell are fixed by the elastic sleeve 8310.

[0478] Furthermore, the elastic sleeve 8310 and the inner shell 820 are integrally formed, which is conducive to strengthening the installation stability of the fan assembly 830 and reducing manufacturing costs. Optionally, the elastic sleeve 8310 and the inner shell 820 can both be made of soft materials, which can play a role in reducing noise and vibration during the operation of the fan assembly. In another example, the inner shell 820 can be made of a hard material, such as plastic, and the elastic sleeve 8310 can be made of a soft material, such as rubber. The hard material and the soft material are processed together through a processing technology to achieve the integral molding of the elastic sleeve 8310 and the inner shell 820. In this way, the inner shell 820 can ensure the stability of the entire fan assembly 830 installed in the air outlet 810, and the elastic sleeve 8310 can achieve the vibration reduction and noise reduction effect of the fan assembly 830 during operation.

[0479] Furthermore, the side of the elastic sleeve 8310 facing the fan assembly 830 is provided with a plurality of protrusions, which form an interference fit with the outer housing of the motor 8320 of the fan assembly 830. The protrusions are distributed along the circumference of the elastic sleeve 8310. This circumferential distribution of the protrusions facilitates the installation and positioning of the fan assembly 830, thereby ensuring efficient gas flow and achieving a certain degree of vibration and noise reduction.

[0480] In this embodiment, there are more than two protrusions, and the protrusions are annular or arc-shaped structures. The protrusions are arranged on the inner wall of the elastic sleeve 8310 to achieve the effects of shock absorption, noise reduction, and sealing; the protrusions can also be arranged on the end faces of the upper and lower ends of the elastic sleeve 8310 in the axial direction to achieve the effects of support and sealing; of course, there can also be protrusions on the inner wall and the upper and lower ends of the elastic sleeve 8310 to support and fix the motor 8320.

[0481] In another embodiment, the protrusions are spaced apart and discontinuously arranged inside the elastic sleeve 8310, that is, multiple spaced apart protrusions, and the multiple protrusions are used to abut and fix the motor 8320 to reduce the contact area between the motor 8320 and the shell, thereby having a better noise reduction effect.

[0482] It should be noted that the fan assembly 830 includes a motor 8320 and fan blades 8330 driven by the motor 8320. The motor 8320 and the fan blades 8330 are installed inside the second channel to achieve air induction through the fan blades 8330 under the drive of the motor 8320. The fan blades 8330 are arranged on the side of the motor 8320 facing the air inlet 8112.

[0483] In this embodiment, the inner shell 820 includes an upper shell 8220 and a lower shell 8210, the upper shell 8220 has a first wiring hole 8221, the lower shell 8210 and the upper shell 8220 are detachably connected, and the lower shell 8210 has a second wiring hole 8211, one of the first wiring hole 8221 and the second wiring hole 8211 is used to pass at least part of the high-voltage line, and the other is used to pass at least part of the signal line. Preferably, the first wiring hole 8221 is used to pass at least part of the high-voltage line, and the second wiring hole 8211 is used to pass at least part of the signal line.

[0484] Among them, the upper shell 8220 and the lower shell 8210 are set relative to the position of the handle, the lower shell 8210 is close to the handle, and the upper shell 8220 is far away from the handle. The split design of the inner shell 820 improves the efficiency of the hair care device assembly.

[0485] Furthermore, the upper housing 8220 and lower housing 8210 are used for routing high-voltage wires and signal wires, respectively, which facilitates reasonable line planning and convenient line management, thereby facilitating subsequent targeted line inspections. In addition, the distribution positions of high-voltage wires and signal wires can be adjusted according to actual routing needs, and are not limited to the above routing method.

[0486] In this embodiment, the inner shell 820 has a first arm section 8201, a transition arm section 8202 and a second arm section 8203 connected in sequence. The first arm section 8201 has a first installation area coaxial with the second channel structure 8311. The fan assembly 830 is installed inside the first installation area. The fan assembly 830 at least partially extends to the transition arm section 8202. The second arm section 8203 has a second installation area coaxial with the first channel structure 8110. At least a portion of the heating structure 850 is installed inside the second installation area. Furthermore, the second control panel can also be fixed to the transition arm section 8202. By designing the inner shell 820 in a segmented manner and setting different structures at different positions, the compactness of the internal structure of the air outlet can be achieved, while also ensuring the stability of the internal components, thereby achieving a miniaturization effect.

[0487] Furthermore, the connection between the upper shell 8220 and the lower shell 8210 can be a snap connection or a connection through fasteners such as screws.

[0488] Furthermore, the upper shell 8220 and the lower shell 8210 cooperate to form a cylindrical installation channel.

[0489] In this embodiment, a wire-clamping device is provided on the inner shell 820. The wire-clamping device is used to clamp high-voltage wires and / or signal wires, and the wire-clamping device is arranged parallel to the direction of the fluid. The wire-clamping device is a wire-clamping groove formed by several plate-shaped protrusions, and the wire-clamping groove is arranged parallel to the direction of the fluid. Specifically, an upper wire-clamping groove is provided on the inner wall surface of the upper shell 8220, and a lower wire-clamping groove is provided on the lower shell 8210. The upper wire-clamping groove is used to clamp the high-voltage wire to achieve the effect of fixing and routing the high-voltage wire, facilitating the high-voltage wire to pass through the first wiring hole 8221; the lower wire-clamping groove is used to clamp the signal wire to achieve the effect of fixing and routing the signal wire, facilitating the signal wire to pass through the second wiring hole 8211. The use of a wire-clamping groove to clamp and fix the wires avoids the problem of scattered wires causing air blockage in the prior art.

[0490] The cross-sectional area of ​​the wire clamping groove in the fluid direction is as small as possible to reduce obstruction to the fluid.

[0491] In this embodiment, the air outlet 810 has a mounting notch, and the hair care device further includes a connector 860. The lower housing 8210 is snap-fitted to the connector 860, which has a slot that engages with the peripheral edge of the mounting notch to achieve the technical effect of the position-limiting handle 840. During assembly, the connector 860 is first snap-fitted to the lower housing 8210 to form a mounting structure, which is then installed inside the air outlet 810. The peripheral edge of the mounting notch slides into the slot to achieve a position-limiting engagement, thereby achieving a fixed connection between the mounting structure and the air outlet 810. To disassemble, the lower housing 8210 can be removed by pulling it in the opposite direction.

[0492] As shown in FIG. 42 to FIG. 52 , the hair care device further includes a negative ion generator 870 . The negative ion generator 870 is disposed between the inner housing 820 and the air outlet cylinder 810 and is located within the accommodating space.

[0493] Among them, the negative ion generator 870 is located on the side close to the handle 840. It can be understood that since the fan assembly 830 is eccentrically arranged relative to the air outlet 810, the part of the air outlet 810 away from the nozzle assembly is provided with a layout channel for at least some functional components or wiring harnesses. Taking Figure 46 as an example, the fan assembly 830 is arranged in an upper position inside the air outlet 810, then the lower position can be a layout channel for at least some functional components or wiring harnesses. Due to the requirement of compactness, the necessary wiring harness needs to pass through the connection position between the handle 840 and the air outlet 810. Therefore, the eccentric setting can meet the wiring harness layout requirements as much as possible, while avoiding the excessive size of the overall size of the air outlet, thereby achieving a miniaturization effect.

[0494] This embodiment reduces the distance between the negative ion generator 870 and the negative ion needle radiation tip, thereby reducing negative ion loss and achieving higher efficiency. The negative ion line and needle pass between the inner shell 820 and the air outlet cylinder 810 and bend radially inward at the tip.

[0495] Specifically, the negative ion generator 870 is used to emit negative ions into the interior of the fluid, so that the airflow carries the negative ions, thereby improving the hair care effect when blowing hair.

[0496] Furthermore, the negative ion generator 870 is disposed below the fan assembly 830 .

[0497] In this embodiment, the hair care device also includes an accessory connection structure, which is located at the outlet end of the air outlet tube 810. An abutment structure is provided on the inner side of the air outlet tube 810. The accessory connection structure cooperates with the abutment structure and is spaced from the air outlet tube 810 to form an annular space. A accommodating cavity is provided at the center of the accessory connection structure for accommodating magnets or ferromagnetic materials. The annular space is used to plug and connect with the accessory to fix the accessory in the axial and radial directions of the air outlet tube.

[0498] Furthermore, a sealing member is provided between the accessory connection structure and the air outlet duct 810 , and the sealing member cooperates with the abutting structure to seal between the air outlet duct 810 and the accessory connection structure.

[0499] The seal protrudes between the accessory connection structure and the air outlet 810 in the axial direction of the air outlet 810. When the seal protrudes from the annular space and the accessory connection structure is installed on the air outlet 810, the accessory connection structure is in close contact with the seal.

[0500] In this embodiment, the hair care device includes a seal and an accessory connection structure. The seal is arranged on the side of the air outlet 810 close to the air outlet 8111, at least a portion of the seal is arranged between the air outlet 810 and the heating structure 850, the accessory connection structure is connected to the end face of the air outlet 810 close to the air outlet 8111, and at least another portion of the seal is arranged between the air outlet 810 and the accessory connection structure. The cross-section of the seal is roughly in the shape of a "Z", an "I", etc.

[0501] Among them, the seal has the technical effects of heat insulation and sealing. The seal is set on one side of the air outlet 8111. When the accessory connection structure is installed to the position of the air outlet 8111, the isolation seal can achieve the sealing of the connection position between the accessory connection structure and the air outlet tube 810; at the same time, the seal can also achieve heat insulation, avoiding the heat emitted by the heating wire to be transferred to the surface of the air outlet tube, causing the problem of the whole machine becoming hot.

[0502] Furthermore, the accessory connection structure is adsorbed and connected to one side of the air outlet 8111 of the air outlet duct 810, that is, a first magnetic component is provided on the accessory connection structure, and a second magnetic component is provided on the air outlet duct 810, and the first magnetic component and the second magnetic component are magnetically coupled to achieve connection.

[0503] Of course, the accessory connection structure can also be connected to the air outlet duct 810 by plugging.

[0504] In this embodiment, the accessory connection structure may be a wind-gathering nozzle structure or a cylindrical structure with comb teeth.

[0505] As shown in Figures 42 to 52, a filter cover 8810, a filter screen and a silencer are arranged in sequence at the air inlet 8112 along the air inlet direction; there are at least two filter screens; one of them has the same shape as the filter cover 8810, and the other has the same shape as the silencer.

[0506] Among them, the silencer is a mounting plate with a honeycomb grid structure, which can be made of plastic or other materials and is used for silencing and reducing noise.

[0507] Furthermore, the filter cover 8810 is a shell with a bowl-shaped structure having a through hole, which allows large objects such as hands to enter. One of the filters is a disc-shaped structure, and the other is a bowl-shaped structure. Both are metal filters to prevent smaller objects such as hair from entering.

[0508] In this embodiment, a decorative piece 8820 is further provided on the filter cover 8810 of the air inlet 8112 to enhance the aesthetics and also to strengthen the filter cover 8810. The decorative piece 8820 is provided at the top of the bowl-shaped filter cover 8810.

[0509] As shown in Figure 52, the ratio of the maximum outer wall diameter D1 of the air outlet 810 in this embodiment to the maximum length L1 of the air outlet 810 in the first direction from the air inlet 8112 to the air outlet 8111 is within a range of 0.22-0.43. In this embodiment, D1 is less than or equal to 60 mm, and L1 is less than or equal to 180 mm, wherein D1 is between 40-60 mm, and L1 is between 140-180 mm. Preferably, D1 is 56 mm, and L1 is 145 mm.

[0510] In this embodiment, the maximum diameter D2 of the handle 840 is less than or equal to 50 mm, and the length L2 of the handle 840 is less than or equal to 180 mm. Preferably, D2 is 36 mm and L2 is 150 mm.

[0511] The maximum length L3 between the axis of the handle 840 and the end of the air outlet 8111 along the first direction is between 90-110 mm, and preferably L3 is 98 mm.

Claims

1. A hair care device, characterized in that: include: Hair dryer; handle; A rotating assembly, wherein the handle is rotatably connected to the wind tube through the rotating assembly, and the handle has a first position, a second position, and a third position arranged between the first position and the second position, which is engaged with the rotating assembly; The angle between the axis direction of the handle when it is in the first position and the axis direction of the handle when it is in the second position is an obtuse angle or a straight angle; When the handle is in the third position, an angle between the axial direction of the handle and the axial direction of the handle when it is in the first position or the axial direction of the handle when it is in the second position is an acute angle or a right angle.

2. The hair care device according to claim 1, characterized in that When the handle is in the first position and / or the second position, the axial direction of the handle is parallel to the axial direction of the wind tube; and / or When the handle is in the third position, the axial direction of the handle is perpendicular to the axial direction of the wind tube.

3. The hair care device according to claim 1, characterized in that When the handle is in the second position, the hair care device is adapted to be connected to a curling attachment.

4. The hair care device according to any one of claims 1 to 3, characterized in that: The ratio of the diameter D1 of the outer wall of the wind tube to the length L1 of the wind tube is in the range of 0.22 to 0.

43.

5. The hair care device according to claim 4, characterized in that D1 is less than or equal to 60mm, L1 is less than or equal to 180mm.

6. The hair care device according to claim 5, characterized in that The diameter D2 of the outer wall of the handle is less than or equal to 50 mm, and the length L2 of the handle is less than or equal to 180 mm.

7. The hair care device according to claim 6, characterized in that When the handle is in the second position, the distance L3 between the projection of the air outlet endpoint of the air duct and the top end point of the handle on the horizontal plane is between 90-110 mm.

8. The hair care device according to claim 6, characterized in that When the handle is in the second position, the distance L4 between the projection of the air inlet endpoint of the air cylinder and the rear end of the handle on the horizontal plane is greater than or equal to 70 mm, so as to ensure that the user can hold the handle when the handle is in the second position.

9. The hair care device according to any one of claims 1 to 3, characterized in that: When the handle is in the second position, the axis of the handle and the axis of the wind tube are parallel to each other, and the distance between the two axes is less than or equal to 55 mm.

10. The hair care device according to any one of claims 1 to 3, characterized in that The rotating assembly comprises: A main body, wherein a first end of the main body is fixedly connected to the wind tube: The transmission part is rotatably connected to the main body, the second end of the main body has a circular groove structure, at least a part of the transmission part is rotatably arranged inside the circular groove structure, and the transmission part is fixedly connected to the handle.

11. The hair care device according to claim 10, characterized in that The rotating assembly also includes: The limiting structure includes a limiting member, and the limiting member defines a first clamping position, a second clamping position and a third clamping position to correspond to the first position, the second position and the third position of the handle respectively.

12. The hair care device according to claim 11, characterized in that The limiting member includes a first limiting member and a second limiting member that cooperate with each other in limiting position. The first limiting member is arranged on the inner circumferential wall surface of the circular groove structure, and the second limiting member is arranged on the transmission part. Along the circumference of the circular groove structure, at least three first limiting members are arranged, and the second limiting member is arranged in cooperation with the first limiting member.

13. The hair care device according to claim 12, characterized in that The handle includes a first shell and a second shell that are detachably connected, the first shell and the second shell form an installation cavity toward the first end of the hair dryer, at least a portion of the second end of the main body is accommodated inside the installation cavity, and at least a portion of the transmission part is drivingly connected to the second shell.

14. The hair care device according to claim 13, characterized in that The transmission part comprises: A transmission bracket, the transmission bracket is drivingly connected to the second housing; The shift ring is arranged on a side of the transmission bracket away from the second shell, the shift ring is rotatably arranged inside the circular groove structure, the second limit piece is arranged on the outer circumferential surface of the shift ring, and the transmission bracket is drivingly connected to the shift ring.

15. The hair care device according to claim 10, characterized in that The transmission part comprises: A transmission bracket and a shifting ring are drivingly connected to each other so that the transmission bracket and the shifting ring rotate synchronously.

16. The hair care device according to claim 15, characterized in that The hair care device further comprises a support member, and the support member is arranged on the inner circumference of the dial ring.

17. The hair care device according to claim 16, characterized in that The rotating assembly also includes: The limiting structure includes a limiting member, the limiting member defines a first clamping position, a second clamping position and a third clamping position. positions to correspond to the first position, the second position and the third position of the handle respectively; The limiting member includes a first limiting member and a second limiting member that cooperate with each other in limiting position, the first limiting member is arranged on the inner circumferential wall surface of the circular groove structure, the second limiting member is arranged on the transmission part, at least three first limiting members are arranged along the circumference of the circular groove structure, and the second limiting member is arranged in cooperation with the first limiting member; The handle comprises a first shell and a second shell which are detachably connected, the first shell and the second shell form a mounting cavity towards the first end of the wind tube, at least a portion of the second end of the body is accommodated in the mounting cavity, and at least a portion of the transmission portion is drivingly connected to the second shell; The transmission bracket is drivingly connected to the second shell, the shifting ring is arranged on the side of the transmission bracket away from the second shell, the shifting ring is rotatably arranged inside the circular groove structure, the second limit piece is arranged on the outer circumferential surface of the shifting ring, and the transmission bracket is drivingly connected to the shifting ring.

18. A hair care device, characterized in that: include: Hair dryer; handle; A rotating assembly, wherein the handle is rotatably connected to the hair dryer through the rotating assembly, and the handle has at least a first position, a third position and / or a second position relative to the hair dryer; When the handle is in the third position, the axial direction of the handle forms an acute angle or a right angle with the axial direction of the handle when it is in the first position; and / or When the handle is in the third position, the angle between the axis direction of the handle and the axis direction of the handle when it is in the second position is an acute angle or a right angle; The rotating assembly comprises a main body and a transmission part, wherein a first end of the main body is fixedly connected to the wind tube; the main body is rotatably connected to the transmission part; The transmission part comprises a transmission bracket and a shifting ring, and the transmission bracket and the shifting ring are drivingly connected; The hair care device further comprises a support member, which is supported on the inner circumferential surface of the dial ring.

19. The hair care device according to claim 18, characterized in that The rotating assembly also includes: A limiting structure, the limiting structure comprising a limiting member, the limiting member defining a first clamping position, a second clamping position and a third clamping position, so as to correspond to the first position, the second position and the third position of the handle respectively; The limiting member includes a first limiting member and a second limiting member that cooperate with each other in limiting position, the first limiting member is arranged on the inner circumferential wall surface of the circular groove structure of the main body, the second limiting member is arranged on the transmission part, and at least three first limiting members are arranged along the circumference of the circular groove structure, and the second limiting member is arranged in cooperation with the first limiting member; The handle comprises a first shell and a second shell which are detachably connected, the first shell and the second shell form a mounting cavity towards the first end of the wind tube, at least a portion of the second end of the body is accommodated in the mounting cavity, and at least a portion of the transmission portion is drivingly connected to the second shell; The transmission bracket is drivingly connected to the second shell, the shifting ring is arranged on the side of the transmission bracket away from the second shell, the shifting ring is rotatably arranged inside the circular groove structure, the second limit piece is arranged on the outer circumferential surface of the shifting ring, and the transmission bracket is drivingly connected to the shifting ring.

20. The hair care device according to claim 18 or 19, characterized in that The ratio of the diameter D1 of the outer wall of the wind tube to the length L1 of the wind tube is in the range of 0.22 to 0.43; the diameter D2 of the outer wall of the handle is less than or equal to 50 mm, and the length L2 of the handle is less than or equal to 180 mm.

21. The hair care device according to claim 18 or 19, characterized in that Along the circumference of the support member, the support member is not closed to form a gap.

22. The hair care device according to claim 19, characterized in that The support member provides a fastening force for retaining the second limiting member of the limiting structure of the rotating assembly and for limiting cooperation with the first limiting member of the limiting structure.

23. The hair care device according to claim 18 or 19, characterized in that The support member is made of elastic material; and / or The support member is in a non-closed circular ring shape or a closed non-circular ring shape.

24. The hair care device according to claim 19, characterized in that The hair care device further comprises a protective member, a wiring space is formed between the main body of the rotating assembly and the first shell of the handle, and the protective member is arranged inside the wiring space.

25. The hair care device according to claim 24, characterized in that The protective member is made of foam material, is arranged on the main body, and is a columnar structure coaxial with the main body.

26. A hair care device, characterized in that: include: Fan body; An accessory, the fan body is used to provide airflow to the accessory, and the accessory is used to shape the target object through the airflow; A rotation-stopping mechanism, the rotation-stopping mechanism comprising a first structure and / or a second structure; When the anti-rotation mechanism includes the first structure and the second structure, the first structure and the second structure are respectively arranged on the fan body and the accessory, and after the accessory is connected to the fan body, the first structure and the second structure cooperate to fix the accessory relative to the fan body; When the anti-rotation mechanism includes the first structure or the second structure, the first structure or the second structure is arranged on one of the fan body and the accessory, and after the accessory is connected to the fan body, the direction of the accessory relative to the fan body is not fixed.

27. A hair care device, characterized in that: include: Fan body; Two or more accessories, wherein the accessories are connected to the fan body, the fan body is used to provide airflow to the accessories, and the accessories are used to shape the target object through the airflow; wherein at least two of the accessories shape the target object in different ways; A rotation-stopping mechanism, the rotation-stopping mechanism comprising a first structure and at least one second structure, the first structure being arranged on the fan body; The second structure is provided on some of the accessories, and the first structure cooperates with the second structure so that the accessories provided with the second structure are fixed relative to the direction of the fan body; The second structure is not provided on some of the accessories, so that after the accessories without the second structure are connected to the fan body, the direction of the accessories relative to the fan body is not fixed.

28. The hair care device according to claim 26 or 27, wherein the first structure comprises at least one groove, and the second structure comprises at least one protrusion, and the groove and the protrusion cooperate to fix the accessory relative to the direction of the fan body; Or, the first structure includes at least one first magnetic material, the second structure includes at least one second magnetic material matched with the first magnetic material, and the first magnetic material and the second magnetic material cooperate to fix the accessory relative to the direction of the fan body; Or, the first structure is an internal thread, the second structure is an external thread corresponding to the internal thread, and the internal thread and the external thread cooperate to fix the accessory relative to the fan body; Alternatively, the first structure includes at least one guide groove, and the second structure includes at least one guide slider matched with the guide groove, and the guide groove and the guide slider cooperate to fix the accessory relative to the direction of the fan body.

29. The hair care device according to claim 28, characterized in that The first magnetic material is a first magnet, and the second magnetic material is a second magnet or an iron sheet; When the first magnet matches with the second magnet, or when the first magnet matches with the iron sheet, the directions of the accessory and the fan body are relatively fixed.

30. The hair care device according to claim 28, characterized in that The internal thread is provided on one of the fan body and the accessory, and the external thread is provided on the other of the fan body and the accessory; When the internal thread and the external thread are connected, the directions of the accessory and the fan body are relatively fixed.

31. The hair care device according to claim 28, characterized in that The guide groove is provided on one of the fan body and the accessory, and the guide slider is provided on the other of the fan body and the accessory; The guide groove is provided with a stopper, and the guide slider stops when sliding along the guide groove to the stopper, and the accessory and the fan body are relatively fixed.

32. The hair care device according to claim 28, characterized in that When there are a plurality of the protrusions and a plurality of the concave grooves, the number of the protrusions is less than or equal to the number of the concave grooves.

33. The hair care device according to claim 28, characterized in that The fan body is provided with an air outlet, and the groove is opened on the wall surface near the air outlet; The accessory is provided with an air inlet, and the convex portion is correspondingly arranged on the wall surface near the air inlet of the accessory.

34. The hair care device according to claim 28, characterized in that The groove extends along the axial direction of the fan body, and the notch of the groove facing the accessory is a semicircular or concave arc surface; Along the axial direction perpendicular to the fan body, the cross section of the convex portion is a semicircular or outward convex arc surface corresponding to the notch.

35. The hair care device according to claim 28, characterized in that The groove comprises a first groove section and a second groove section which are interconnected; The first groove segment extends along the axial direction of the fan body, one end of the second groove segment is connected to the first groove segment, and the second groove segment extends around the circumference of the fan body; During the connection between the accessory and the fan body, the protrusion moves along the extension direction of the first groove segment and along the extension direction of the second groove segment, so that the directions of the accessory and the fan body are relatively fixed.

36. The hair care device according to claim 28, characterized in that On the wall surface of the fan body, the groove is spirally arranged along the axial direction of the fan body; On the wall surface of the fan body, the convex part is spirally arranged along the axial direction of the fan body, and the convex part cooperates with the groove. When connected, the directions of the accessory and the fan body are fixed.

37. The hair care device according to claim 33, characterized in that The fan body includes an annular component; The annular component is arranged in the air outlet, the outer side wall of the annular component is spaced apart from the outer shell of the fan body, and the outer side wall of the annular component and the outer shell of the fan body are spaced apart to form an annular groove; The accessory is provided with a flange matched with the annular groove. When the accessory is connected to the fan body, the flange is arranged in the annular groove.

38. The hair care device according to claim 37, characterized in that The groove is formed on the outer side wall of the annular member, and the protrusion is formed on the inner side wall of the flange; Alternatively, the groove is formed on the inner side wall of the outer shell at the air outlet of the fan body, and the protrusion is arranged on the outer side wall of the flange.

39. The hair care device according to claim 38, characterized in that When there are a plurality of grooves, the plurality of grooves are arranged at intervals on the outer side wall of the annular member; When there are a plurality of the convex portions, the plurality of the convex portions are arranged at intervals on the inner side wall of the flange.

40. The hair care device according to claim 28, characterized in that The anti-rotation mechanism also includes at least one clamping member, which is arranged in the groove and is used to clamp the convex portion that cooperates with the groove.

41. The hair care device according to claim 40, characterized in that The clamping member is an elastic member, and the elastic member is arranged on the inner side wall of the groove. When the protrusion is inserted into the groove, the elastic member is elastically deformed and the protrusion is fastened in the groove through the elastic deformation force.

42. A hair care device according to claim 26 or 27, characterized in that The accessory comprises an adjusting portion and a shaping portion, wherein the adjusting portion rotates relative to the shaping portion to adjust the air outlet direction of the shaping portion, and the shaping portion is used to shape the target object through the airflow; The first structure and the second structure are respectively arranged on the fan body and the shaping part. After the shaping part is connected to the fan body and the adjustment part rotates relative to the shaping part, the first structure and the second structure cooperate to fix the shaping part relative to the fan body.

43. A hair care device according to claim 26 or 27, characterized in that The axis of the fan body is coaxial or parallel to the axis of the accessory.

44. The hair care device according to claim 43, characterized in that The hair care device also includes a grip portion; The holding portion is rotatably connected to the fan body, and the holding portion can be rotated to a first position relative to the fan body. When the holding portion is rotated to the first position, the axis of the holding portion is coaxial or parallel to the axis of the fan body.

45. The hair care device according to claim 43, characterized in that The hair care device also includes a grip portion; The gripping portion is rotatably connected to the fan body, and the gripping portion can rotate between a first position and a second position relative to the fan body. When the gripping portion rotates to the first position, the axis of the gripping portion is coaxial or parallel to the axis of the fan body. When the holding portion rotates to the second position, the axis of the holding portion is perpendicular to the axis of the fan body.

46. ​​A hair care device according to claim 44 or 45, characterised in that The holding portion can rotate relative to the fan body in a direction opposite to the air outlet to reach a first position.

47. A hair care device according to claim 26 or 27, characterized in that The hair care device also includes a grip portion; The grip is rotatably connected to the fan body, the grip can rotate between a first position and a second position relative to the fan body and stay at any position and be relatively fixed, and when the grip rotates to the first position in a direction away from the air outlet, the axis of the grip is coaxial or parallel to the axis of the fan body; When the holding portion rotates to the second position, the axis of the holding portion is perpendicular to the axis of the fan body.

48. A hair care device, characterized in that include: main body; A handle, the handle being fixedly connected or rotatably connected to the main body; A motor, wherein the motor is disposed in the main body; a first circuit board, the first circuit board is located in the main body and has a first end and a second end opposite to each other, the motor comprises a motor inner wall and a motor outer wall, the motor outer wall surrounds the motor inner wall to form an annular fluid flow channel, the first end is closer to the fluid flow channel than the second end, the first end deviates from the central axis of the motor, and the first circuit board is inclined relative to the central axis of the motor; The inclined direction extending from the first end to the second end enables the airflow of more than half of the cross-sectional area of ​​the fluid flow channel flowing out of the motor to flow in a diffuse manner.

49. A hair care device, characterized in that include: main body; A handle, the handle being fixedly connected or rotatably connected to the main body; A motor, wherein the motor is disposed in the main body; a first circuit board, the first circuit board is located in the main body and has a first end and a second end opposite to each other, the first end is closer to the air outlet of the motor relative to the second end, the first end deviates from the central axis of the motor, and the first circuit board is inclined relative to the central axis of the motor; The inclined direction extending from the first end to the second end enables the airflow of more than half of the air outlet area flowing out of the air outlet of the motor to flow in a diffused manner.

50. The hair care device according to claim 48, characterized in that The first end of the first circuit board divides the fluid flow channel into a first fluid flow channel and a second fluid flow channel; The cross-sectional area of ​​the first fluid flow channel is relatively larger than the cross-sectional area of ​​the second fluid flow channel, and the inclined direction extending from the first end to the second end causes the airflow flowing out of the motor from the first fluid flow channel to flow in a diffuse manner.

51. The hair care device according to claim 49, characterized in that include: The first end of the first circuit board divides the air outlet into a first air outlet and a second air outlet; The area of ​​the first air outlet is relatively larger than the area of ​​the second air outlet, and the inclined direction extending from the first end to the second end causes the airflow flowing out of the first air outlet to flow in a diffuse manner.

52. A hair care device according to claim 48 or 49, characterised in that The main body has a central axis, the motor is eccentrically arranged relative to the central axis of the main body, and the central axis of the main body is parallel to the central axis of the motor.

53. The hair care device according to claim 48, characterized in that The main body has a central axis, the motor is eccentrically arranged relative to the central axis of the main body, and the central axis of the main body is parallel to the central axis of the motor; The first circuit board does not divide the fluid flow channel.

54. The hair care device according to claim 49, characterized in that The main body has a central axis, the motor is eccentrically arranged relative to the central axis of the main body, and the central axis of the main body is parallel to the central axis of the motor; The first circuit board does not divide the air outlet.

55. The hair care device according to claim 52, characterized in that The shortest distance between the first circuit board and the central axis of the main body is less than or equal to the shortest distance between the first circuit board and the central axis of the motor.

56. The hair care device according to claim 52, characterized in that A straight line passing through the center of the motor and the center of the main body is perpendicular to a horizontal plane where the first end or the second end is located.

57. The hair care device according to claim 50, characterized in that The main body includes an upper inner shell and a lower inner shell, the upper inner shell and the lower inner shell are connected to form a receiving space, the first circuit board is fixed in the receiving space, and the airflow flowing out of the second fluid flow channel flows between the first circuit board and the lower inner shell.

58. The hair care device according to claim 51, characterized in that The main body includes an upper inner shell and a lower inner shell, the upper inner shell and the lower inner shell are connected to form a receiving space, the first circuit board is fixed in the receiving space, and the airflow flowing out of the second air outlet flows between the first circuit board and the lower inner shell.

59. The hair care device according to claim 50, characterized in that The ratio of the shortest distance between the center of the motor and the first circuit board to the radius of the outer wall of the motor is: 0.6:1 to 1:

1.

60. The hair care device according to claim 51, characterized in that An area ratio of the first air outlet to the second air outlet is greater than 0 and less than 4.

2.

61. A hair care device according to claim 48 or 49, characterized in that A fluid inlet and a fluid outlet are respectively provided at two ends of the main body. A heating component is provided inside the main body. The heating component is close to the fluid outlet relative to the motor. The first circuit board is located between the motor and the heating component.

62. The hair care device according to claim 61, characterized in that The first circuit board and the heat generating component are spaced apart from each other.

63. The hair care device according to claim 62, characterized in that The interval between the first circuit board and the heat generating component ranges from 0 to 20 mm.

64. The hair care device according to claim 62, characterized in that The heat generating component is provided with a spacer close to the first circuit board, and the first circuit board abuts against the spacer.

65. The hair care device according to claim 61, characterized in that The first circuit board is fixedly connected to at least one of the heat generating component, the main body and the fixing frame of the motor.

66. A hair care device according to claim 65, characterized in that The fixing frame is provided with a groove, the first circuit board is clamped in the groove and / or the first circuit board is adhesively connected to a wall forming the groove.

67. The hair care device according to claim 65, characterized in that At least one of the fixing frame and the heating component is provided with an elastic member, and the elastic member contacts the first circuit board to perform elastic limiting.

68. A hair care device according to claim 48 or 49, characterised in that The hair care device further comprises a second circuit board, which is electrically connected to the first circuit board and is used to share the voltage on the first circuit board.

69. The hair care device according to claim 68, characterized in that The second circuit board is located in the main body.

70. The hair care device according to claim 69, characterized in that The second circuit board is provided with an electronic component, and the electronic component is at least one of a rectifier bridge, an NTC thermistor, and a fuse.

71. The hair care device according to claim 50, characterized in that The airflow from the first fluid flow channel flows through the first side of the first circuit board, and the airflow from the second fluid flow channel flows through the second side of the first circuit board; a plurality of electronic components are disposed on both the first side and the second side; The highest height of the electronic component on the first side is smaller than the highest height of the electronic component on the second side; and / or, Among the plurality of electronic components on the first side or the plurality of electronic components on the second side, the electronic component with a relatively low height is disposed close to the motor.

72. The hair care device according to claim 51, characterized in that The airflow from the first air outlet flows through the first side of the first circuit board, and the airflow from the second air outlet flows through the second side of the first circuit board; a plurality of electronic components are disposed on both the first side and the second side; The highest height of the electronic component on the first side is smaller than the highest height of the electronic component on the second side; and / or, Among the plurality of electronic components on the first side or the plurality of electronic components on the second side, the electronic component with a relatively low height is disposed close to the motor.

73. The hair care device according to claim 50, characterized in that The airflow from the first fluid flow channel flows through the first side of the first circuit board, and the airflow from the second fluid flow channel flows through the second side of the first circuit board; A wiring space is formed between the second side and the main body, and the wiring space allows cables to pass through.

74. The hair care device according to claim 51, characterized in that The airflow out of the first air outlet flows through the first side of the first circuit board, and the airflow out of the second air outlet flows through the second side of the first circuit board; A wiring space is formed between the second side and the main body, and the wiring space allows cables to pass through.

75. The hair care device according to claim 69, characterized in that A third circuit board is disposed in the handle, and the third circuit board is electrically connected to at least one of the first circuit board and / or the second circuit board.

76. A hair care device, characterized in that The air outlet comprises an air outlet member, wherein the air outlet member comprises an air outlet wall surface, the air outlet wall surface is provided with a first annular air outlet and a second air outlet, and the second air outlet is arranged radially inward of the first air outlet at intervals; Wherein, the ratio of the inner diameter r1 of the first air outlet to the inner diameter r2 of the second air outlet is between 1.2 and 1.

6.

77. A hair care device, characterized in that The air outlet comprises an air outlet member, wherein the air outlet member comprises an air outlet wall surface, the air outlet wall surface is provided with a first annular air outlet and a second air outlet, and the second air outlet is arranged radially inward of the first air outlet at intervals; Wherein, the ratio of the outer diameter R1 of the first air outlet to the outer diameter R2 of the second air outlet is between 1.2 and 1.

5.

78. A hair care device, characterized in that The air outlet comprises an air outlet member, wherein the air outlet member comprises an air outlet wall surface, along which a first air outlet and a second air outlet of equal width are arranged, wherein the second air outlet is arranged at intervals radially inward of the second air outlet; Wherein, the ratio of the width W1 of the first air outlet to the width W2 of the second air outlet is between 0.8 and 0.

95.

79. A hair care device according to any one of claims 76 to 78, characterised in that An annular wall is provided along the circumference of the air outlet wall surface and protrudes toward the air inlet. The annular wall is connected to the air outlet wall surface and together defines a fluid flow channel.

80. The hair care device according to claim 79, characterized in that The air outlet wall is provided with a plurality of the first air outlets and a plurality of the second air outlets, and the plurality of the first air outlets and the plurality of the second air outlets are arranged at intervals around the center of the air outlet wall; a first guide rib is provided between the plurality of the first air outlets, and the first guide rib is arranged at intervals between two adjacent first air outlets; Second guide ribs are arranged between the plurality of second air outlets, and the second guide ribs are arranged at intervals between two adjacent second air outlets.

81. The hair care device according to claim 80, characterized in that Along the axial direction of the fluid flow channel, the width of the first guide rib gradually decreases from the air outlet wall side to the fluid flow channel side, and the width of the second guide rib gradually decreases from the air outlet wall side to the fluid flow channel side.

82. The hair care device according to claim 81, characterized in that The maximum width of the first guide rib is less than or equal to 2 mm; the maximum width of the second guide rib is less than or equal to 2 mm.

83. The hair care device according to claim 82, characterized in that The plurality of first guide ribs and the plurality of second guide ribs are symmetrically or asymmetrically arranged in the radial direction or axial direction of the air outlet wall surface.

84. The hair care device according to claim 83, characterized in that In a plane perpendicular to the axis of the fluid flow channel, the projection of the air outlet wall is circular, the projections of the plurality of first air outlets are arranged in a first circular ring around the projection center of the air outlet wall, and the projections of the plurality of second air outlets are arranged in a second circular ring around the projection center of the air outlet wall.

85. The hair care device according to claim 84, characterized in that The plurality of first air outlets are concentrically arranged with the plurality of second air outlets, and the centers of the plurality of first air outlets and the centers of the plurality of second air outlets are both located on the axis of the air outlet wall.

86. The hair care device according to claim 82, characterized in that A separation rib is provided between the first air outlet and the second air outlet, and a size of the separation rib is 1-3 mm along the radial direction of the air outlet wall.

87. The hair care device according to claim 85, characterized in that Along the radial direction of the air outlet wall, R1-r2 is 3-8 mm.

88. The hair care device according to claim 82, characterized in that The air outlet wall surface is also provided with a mounting portion, and the second air outlet surrounds the outer side of the mounting portion; The mounting portion has a hemispherical surface on one side facing the fluid flow channel.

89. The hair care device according to claim 88, characterized in that The angle between the tangent line of the hemispherical surface and the air outlet wall surface is less than 50°.

90. The hair care device according to claim 88, characterized in that Along the axis of the fluid flow channel, the radius of the wind surface of the air outlet member at a distance of 100 mm from the wind outlet wall surface of the annular wall is greater than or equal to 100 mm.

91. A hair care device, characterized in that include: An air outlet cylinder has an air inlet and an air outlet, and the air outlet cylinder has a first channel structure extending along a first direction; a fan assembly, the fan assembly being installed inside the first channel structure, the fan assembly having a second channel structure extending along the first direction; a heating structure, the heating structure being arranged inside the first channel structure; A handle connected to the air outlet tube; Wherein, the axis of the second channel structure is farther away from the handle than the axis of the first channel structure, so as to form an accommodating space between the fan assembly and the air outlet cylinder.

92. The hair care device according to claim 91, characterized in that The three axes of the first channel structure, the second channel structure and the handle are located in the same plane.

93. The hair care device according to claim 91, characterized in that The hair care device also includes: a first control panel, the first control panel being disposed inside the handle; a second control panel, the second control panel being arranged inside the air outlet tube; The first control board and the second control board are electrically connected, and a total heat generation of power devices arranged on the first control board is less than a total heat generation of power devices arranged on the second control board.

94. The hair care device according to claim 91, characterized in that The hair care device further comprises at least two control boards, and the power devices on the control boards having a larger total volume are located inside the handle.

95. The hair care device according to claim 93, characterized in that The second control plate surface is arranged along the direction of the fluid and deviates from the central axis of the air outlet tube to reduce the obstruction to the fluid.

96. The hair care device according to claim 93, characterized in that The hair care device further comprises a control switch module, which is arranged inside the air outlet cylinder and connected to the heating structure, and the control switch module is arranged separately from the second control panel.

97. The hair care device according to claim 96, characterized in that The control switch module is located on the central axis of the air outlet cylinder and upstream of the heating structure.

98. The hair care device according to claim 96, characterized in that A protruding structure is provided on one side of the heating structure close to the air inlet, and the control switch module is mounted on the protruding structure.

99. A hair care device according to any one of claims 91 to 98, characterised in that The hair care device also includes an inner shell, which is installed inside the first channel structure. The inner shell has a mounting channel extending along the first direction. The fan assembly is installed in the mounting channel. An elastic sleeve is also provided between the fan assembly and the inner shell.

100. The hair care device according to claim 99, characterized in that The elastic sleeve is integrally formed with the inner shell.

101. The hair care device according to claim 100, characterized in that A side of the elastic sleeve facing the fan assembly is also provided with a plurality of protrusions, and the protrusions are pressed and interfered with the outer shell of the motor of the fan assembly.

102. The hair care device according to claim 101, characterized in that There are two or more protrusions, The protrusion is an annular or arc-shaped structure, and the protrusion is arranged on the inner wall and / or the upper and lower ends of the elastic sleeve to support and fix the motor; or The protrusions are protrusions that are spaced apart and discontinuously arranged inside the elastic sleeve.

103. The hair care device according to claim 99, characterized in that The inner housing comprises: An upper housing, wherein the upper housing has a first wiring hole; A lower shell, wherein the lower shell and the upper shell are detachably connected, and the lower shell has a second wiring hole, at least part of the high-voltage wires pass through one of the first wiring hole and the second wiring hole, and at least part of the signal wires pass through the other of the first wiring hole and the second wiring hole.

104. The hair care device according to claim 103, characterized in that The inner shell is provided with a wire clamping device, which is used for clamping and combing the wires in the hair dryer device.

105. The hair care device according to claim 104, characterized in that The wire-holding device is a wire-holding groove formed by a plurality of plate-shaped protrusions, and the wire-holding groove is arranged parallel to the direction of the fluid.

106. The hair care device according to claim 99, characterized in that The hair care device further comprises a negative ion generator, which is arranged between the inner shell and the air outlet cylinder and is located in the accommodating space.

107. A hair care device according to any one of claims 91 to 98, characterized in that The hair care device also includes: The accessory connection structure is located at the outlet end of the air outlet cylinder. An abutment structure is provided on the inner side of the air outlet cylinder. The accessory connection structure cooperates with the abutment structure and is spaced apart from the air outlet cylinder to form an annular space. An accommodating cavity is provided at the center of the accessory connection structure for accommodating magnets or ferromagnetic materials. The annular space is used for plug-in connection with the accessory to fix the accessory in the axial and radial directions of the air outlet cylinder.

108. The hair care device according to claim 107, characterized in that A sealing member is further provided between the accessory connection structure and the air outlet tube, and the sealing member cooperates with the abutting structure to seal between the air outlet tube and the accessory connection structure.

109. The hair care device according to claim 108, characterized in that The sealing member protrudes between the accessory connection structure and the air outlet cylinder in the axial direction of the air outlet cylinder. When the sealing member protrudes from the annular space and when the accessory connection structure is installed on the air outlet cylinder, the accessory connection structure is in close contact with the sealing member.

110. A hair care device according to any one of claims 91 to 98, characterized in that The air inlet is provided with a filter cover, a filter screen and a silencer in sequence along the air inlet direction; at least two filter screens are provided; one of them has the same shape as the filter cover, and the other has the same shape as the silencer.

111. A hair care device according to any one of claims 91 to 98, characterized in that The ratio of the maximum diameter D1 of the outer wall of the air outlet cylinder to the maximum length L1 of the air outlet cylinder from the air inlet to the air outlet in the first direction is in the range of 0.22-0.

43.

112. The hair care device according to claim 111, characterized in that D1 is less than or equal to 60mm, L1 is less than or equal to 180mm.

113. The hair care device according to claim 112, characterized in that The maximum diameter D2 of the handle is less than or equal to 50 mm, and the length of the handle is less than or equal to 180 mm.

114. The hair care device according to claim 113, characterized in that The maximum length between the axis of the handle and the end of the air outlet along the first direction is between 90 mm and 110 mm.

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