Blowing device

Abstract

The embodiment of the utility model provides an air blowing device. The air blowing device comprises a shell assembly, a limiting structure and an air supply assembly. The shell assembly is provided with a first containing space. The limiting structure is arranged in the first containing space and provided with a second containing space. The air supply assembly is used for generating first airflow and comprises a motor and a fan, and the fan is in transmission connection with the motor. The air supply assembly is located in the first containing space, and at least part of the air supply assembly is arranged in the second containing space. At least in the first airflow direction, the limiting structure limits movement of part of the air supply assembly. According to the technical scheme, the limiting structure is arranged in the shell assembly, and the limiting structure can be matched with other structures at least in the rotating axis direction of the rotating shaft of the motor to limit movement of the motor. Thus, during operation, at least the motor can be prevented from moving in the first airflow direction, the mounting stability of the motor is improved, and then the service life and safety of the blowing device are improved.

Description

TECHNICAL FIELD

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

[0002] A hair drying device, for example, an electric fan, is a mechanical device that generates wind by accelerating the speed of air flow in an electric manner. In daily life, electric fans are widely used in some scenes that require air circulation.

[0003] Traditional electric fans are large in size, inconvenient to carry and move, and their application is limited. In order to adapt to some use scenarios, such as small space scenarios, and to facilitate movement, small portable fans (for example, handheld fans) have emerged.

[0004] However, in the related art, the portable fan has the problem of poor motor installation stability. When in use, the motor of the portable fan needs to drive the fan to rotate at high speed. If the motor is not stably installed, the product life will be affected, and the safety is poor. CONTENT OF THE INVENTION

[0005] Therefore, the embodiments of the present application provide a hair drying device to solve the problem of poor motor installation stability of the portable fan in the related art.

[0006] The embodiments of the present application provide a hair drying device. The hair drying device includes a shell assembly, a limiting structure, and a air supply assembly. The shell assembly has a first accommodating space, the limiting structure is arranged in the first accommodating space and has a second accommodating space. The air supply assembly is used to generate a first air flow and includes a motor and a fan, the fan is in transmission connection with the motor, the air supply assembly is located in the first accommodating space and at least partially arranged in the second accommodating space. At least in the direction of the first air flow, the limiting structure limits the movement of part of the air supply assembly.

[0007] In combination with the first aspect, in a possible implementation, the limiting structure includes a first limiting piece, the second accommodating space includes a first sub-accommodating space, and the first limiting piece has the first sub-accommodating space. At least part of the air supply assembly is arranged in the first sub-accommodating space, and a first step is arranged on a first side of the first limiting piece. In the direction of the first air flow, the first step is in abutment with an end of the air supply assembly where the fan is not arranged.

[0008] In combination with the first aspect, in a possible implementation, the motor includes a shell, the shell has a third accommodating space, and at least part of the fan is arranged in the third accommodating space. The shell is arranged in the first sub-accommodating space, and an end of the shell is in abutment with the first step.

[0009] In a possible implementation of the first aspect, the inner circumferential surface of the first limiting member is provided with at least one first groove, and the at least one first groove is configured to increase the friction between the shell and the first limiting member.

[0010] In a possible implementation of the first aspect, the at least one first groove includes four first grooves, and the four first grooves are uniformly distributed on the inner circumferential surface of the first limiting member.

[0011] In a possible implementation of the first aspect, the first groove includes a plurality of first grooves, and the plurality of first grooves extend along the circumferential direction of the inner circumferential surface of the first limiting member.

[0012] In a possible implementation of the first aspect, the shell assembly includes a main shell, at least one end of the main shell is provided with a first connecting portion, and at least one end of the first limiting member is correspondingly provided with a second connecting portion, the first connecting portion is connected to the second connecting portion.

[0013] In a possible implementation of the first aspect, the first connecting portion is a ring groove, the second connecting portion is a first protrusion, and the ring groove accommodates the first protrusion.

[0014] In a possible implementation of the first aspect, the main shell includes a first sub-main shell and a second sub-main shell, and the first sub-main shell and the second sub-main shell are connected to form the main shell.

[0015] In a possible implementation of the first aspect, the main shell has a blowing portion, and the blowing portion has a first accommodating space. The shell assembly further includes a first shell having at least one first vent, and the first shell is connected to a first end of the blowing portion. The inner circumferential surface of the first limiting member is provided with a third connecting portion towards one end of the first shell, and the first shell is provided with a fourth connecting portion towards one side of the first limiting member, and the third connecting portion is connected to the fourth connecting portion.

[0016] In a possible implementation of the first aspect, the third connecting portion is an abutting groove, the fourth connecting portion is an abutting ring, and the abutting ring is in abutment with the abutting groove.

[0017] In a possible implementation of the first aspect, the abutting ring is provided with a first clamping block on the outer circumferential side, the inner circumferential wall of the side of the first limiting member connected to the first shell is provided with a first clamping groove, and the first clamping block is clamped with the first clamping groove.

[0018] In a possible implementation of the first aspect, the side of the first shell towards the first limiting member has an accommodating groove, and the accommodating groove is provided with a magnetic member.

[0019] With reference to the first aspect, in a possible implementation of the first aspect, the shell assembly further comprises a second shell, the second shell is connected to the second end of the blowing part, the second shell is provided with a fifth connecting part on the side facing the first limiting piece, the fifth connecting part extends into the first sub-containment space and abuts against a sixth connecting part provided on the inner circumferential wall of the other end of the outer shell and the first limiting piece. The second shell has at least one second vent.

[0020] With reference to the first aspect, in a possible implementation of the first aspect, the fifth connecting part is a first protruding ring, and the sixth connecting part is a second protruding ring. The outer circumferential side of the first protruding ring is provided with a second clamping block, and the inner circumferential wall of the corresponding side of the second shell is provided with a second clamping groove, and the second clamping block is clamped with the second clamping groove.

[0021] With reference to the first aspect, in a possible implementation of the first aspect, the shell assembly further comprises a third shell, and the main shell further comprises a handheld part. The third shell is connected to the handheld part, and the handheld part is in communication with the blowing part. The handheld part has a fourth containment space, and the blowing device further comprises a battery pack, the battery pack is arranged in the fourth containment space and is electrically connected with the motor.

[0022] With reference to the first aspect, in a possible implementation of the first aspect, the third shell has at least one third vent; and / or, the blowing device further comprises a first cover body, and the handheld part is provided with a handheld recess, and the first cover body is arranged at the handheld recess.

[0023] With reference to the first aspect, in a possible implementation of the first aspect, part of the air supply assembly is arranged in the first sub-containment space, and one end of the air supply assembly provided with the fan abuts against the shell assembly.

[0024] With reference to the first aspect, in a possible implementation of the first aspect, the limiting structure further comprises a second limiting piece. At least part of the second limiting piece is arranged in the first sub-containment space, the first end of the second limiting piece abuts against the first step, the second containment space further comprises a second sub-containment space, the second limiting piece has the second sub-containment space, and at least part of the air supply assembly is arranged in the second sub-containment space.

[0025] With reference to the first aspect, in a possible implementation of the first aspect, the motor comprises an outer shell, the outer shell has a third containment space, at least part of the fan is arranged in the third containment space, and the outer shell is arranged in the second sub-containment space. The inner circumferential surface of the second limiting piece is provided with a second step and a third step, and the two ends of the outer shell abut against the second step and the third step, respectively. The second end of the second limiting piece abuts against the shell assembly.

[0026] With reference to the first aspect, in a possible implementation of the first aspect, the outer circumferential surface of the second limiting piece is provided with at least one protruding point, and the at least one protruding point abuts against the shell assembly and / or the first limiting piece; and / or, the second limiting piece is made of rubber.

[0027] In a possible implementation of the first aspect, the first end of the second limiting member is provided with a first air outlet, the cross-sectional area of the first air outlet close to the first step is greater than the cross-sectional area of the first air outlet close to the shell; and / or, the second end of the second limiting member is provided with a second air outlet, the cross-sectional area of the second air outlet close to the abutting position between the second end of the second limiting member and the shell assembly is greater than the cross-sectional area of the second air outlet close to the shell.

[0028] In a possible implementation of the first aspect, the shell assembly comprises a main shell, the main shell is provided with a blowing part, and the blowing part is provided with a first accommodating space. One end of the first limiting member is provided with a first combining part, and the inner circumferential surface of the blowing part is provided with a second combining part, the second combining part abuts against the first combining part to limit the movement of the first limiting member.

[0029] In a possible implementation of the first aspect, the second combining part comprises a first side part and a second side part, the first side part limits the movement of the first limiting member in the opposite direction of the first air flow, and the second side part limits the rotation of the first limiting member.

[0030] In a possible implementation of the first aspect, the inner circumferential surface of the blowing part is provided with a third clamping part, and the outer circumferential surface of the first limiting member is correspondingly provided with a fourth clamping part, the third clamping part clamps the fourth clamping part; and / or, the inner circumferential surface of the blowing part is provided with a third protruding ring, and the other end of the first limiting member abuts against the third protruding ring.

[0031] In a possible implementation of the first aspect, the main shell comprises a first sub-main shell and a second sub-main shell, the first sub-main shell and the second sub-main shell are connected to form the main shell, and the top parts of the first sub-main shell and the second sub-main shell are connected to form the blowing part.

[0032] In a possible implementation of the first aspect, the shell assembly further comprises a first shell, the first shell is provided with at least one first air vent, the first shell is connected to the first end of the blowing part, the first shell is provided with a second groove, the first end of the blowing part is provided with a first bending part, and the second groove accommodates the first bending part.

[0033] In a possible implementation of the first aspect, the first bending part comprises a first sub-bending part and a second sub-bending part, the first sub-main shell is provided with the first sub-bending part, the second sub-main shell is provided with the second sub-bending part, and the second groove accommodates the first sub-bending part and the second sub-bending part.

[0034] In a possible implementation of the first aspect, the inner wall of the second groove is provided with at least one third groove. The third groove is provided with a first arm, which is perpendicular or substantially perpendicular to the motor rotation axis, and the side of the first bending part away from the motor rotation axis is provided with at least one fourth groove. In the installation, the first arm is slid to the first predetermined position through the fourth groove, and then rotated to the second preset position.

[0035] In a possible implementation of the first aspect, the side of the first arm close to the motor is provided with a fifth clamping part, and the fourth groove is provided with a sixth clamping part, and the fifth clamping part is clamped with the sixth clamping part.

[0036] In a possible implementation of the first aspect, the first shell is provided with a through groove, the first end of the blowing part is provided with a stepped groove, and the air blowing device further comprises a flow guide member provided with a second boss. In the installation, the second boss is sequentially rotated to be clamped with the second part of the stepped groove after passing through the through groove and the first part of the stepped groove.

[0037] In a possible implementation of the first aspect, the shell assembly further comprises a second shell, the second end of the blowing part is connected with the second shell, and the second shell is provided with at least one second air vent.

[0038] In a possible implementation of the first aspect, the second shell is provided with a fifth groove, the second end of the blowing part is provided with a second bending part, and the fifth groove accommodates the second bending part.

[0039] In a possible implementation of the first aspect, the second bending part comprises a third sub-bending part and a fourth sub-bending part. The first sub-main shell is provided with the third sub-bending part, the second sub-main shell is provided with the fourth sub-bending part, and the fifth groove accommodates the third sub-bending part and the fourth sub-bending part.

[0040] In a possible implementation of the first aspect, the inner wall of the fifth groove is provided with at least one sixth groove. The sixth groove is provided with a second arm, which is perpendicular or substantially perpendicular to the motor rotation axis, and the side of the second bending part away from the motor rotation axis is provided with at least one seventh groove. In the installation, the second arm is slid to the third predetermined position through the seventh groove, and then rotated to the fourth preset position.

[0041] In a possible implementation of the first aspect, the side of the second arm close to the motor is provided with a seventh clamping part, and the seventh groove is provided with an eighth clamping part, and the seventh clamping part is clamped with the eighth clamping part.

[0042] In a possible implementation of the first aspect, the shell assembly further comprises a third shell, the main shell further has a hand-held portion, the first sub-main shell and the second sub-main shell are connected at the bottom to form the hand-held portion, and the hand-held portion is in communication with the blowing portion. The third shell is connected to the hand-held portion, the hand-held portion has a fourth accommodation space, and the blowing device further comprises a battery pack, the battery pack is arranged in the fourth accommodation space and is electrically connected to the motor.

[0043] In a possible implementation of the first aspect, the third shell has at least one third vent; and / or, the blowing device further comprises a first cover, the hand-held portion is provided with a hand-held recess, and the first cover is arranged at the hand-held recess.

[0044] In a possible implementation of the first aspect, the first limiting member is provided with at least one opening, and the at least one opening is used for passing through the cable.

[0045] In a possible implementation of the first aspect, the at least one opening comprises a first opening and a second opening.

[0046] According to the technical solution of the present application, inside the shell assembly, a limiting structure is arranged, and in at least the first air flow direction, the limiting structure can cooperate with other structures to limit the movement of the motor. In this way, at least the movement of the motor in the first air flow direction can be avoided during operation, the installation stability of the motor is improved, and the service life and safety of the blowing device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. It should be understood that the drawings only show some of the embodiments of the present application and should not be regarded as limiting the scope. It should also be understood that the same or similar reference signs are used to represent the same or similar elements in the drawings. It should also be understood that the elements in the drawings are only schematic and the size and proportion of the elements in the drawings are not necessarily accurate.

[0048] Figure 1 A three-dimensional structural schematic diagram of the blowing device according to an embodiment of the present application.

[0049] Figure 2 A three-dimensional structural schematic diagram of the blowing device according to an embodiment of the present application. Figure 1 A three-dimensional structural schematic diagram of the blowing device according to an embodiment of the present application.

[0050] Figure 3 A three-dimensional structural schematic diagram of the blowing device according to an embodiment of the present application. Figure 1 A three-dimensional structural schematic diagram of the blowing device according to an embodiment of the present application.

[0051] Figure 4 A three-dimensional structural schematic diagram of the blowing device according to an embodiment of the present application. Figure 1 A three-dimensional structural schematic diagram of the blowing device according to an embodiment of the present application.

[0052] Figure 5 For Figure 1 Structure diagram of the first limiting member.

[0053] Figure 6 For Figure 1 Another structure diagram of the first limiting member.

[0054] Figure 7 For Figure 1 Structure diagram of the main shell.

[0055] Figure 8 For Figure 1 Structure diagram of the first shell.

[0056] Figure 9 For Figure 1 Structure diagram of the second shell.

[0057] Figure 10 For Figure 1 Structure diagram of the third shell.

[0058] Figure 11 Three-dimensional structure diagram of another hair dryer according to an embodiment of the present application.

[0059] Figure 12 For Figure 11 Structure diagram of the hair dryer.

[0060] Figure 13 For Figure 11 Structure diagram of the hair dryer.

[0061] Figure 14 For Figure 11 Structure diagram of the first limiting member.

[0062] Figure 15 For Figure 11 Structure diagram of the second limiting member.

[0063] Figure 16 For Figure 11 Another structure diagram of the second limiting member.

[0064] Figure 17 For Figure 11 Structure diagram of the first sub-main shell.

[0065] Figure 18 For Figure 11 Structure diagram of the second sub-main shell.

[0066] Figure 19 For Figure 11 Structure diagram of the main shell.

[0067] Figure 20For Figure 11 Another structural schematic view of the main housing.

[0068] Figure 21 For Figure 11 Structural schematic view of the first housing.

[0069] Figure 22 For Figure 11 Structural schematic view of the second housing.

[0070] Figure 23 For Figure 11 Structural schematic view of the third housing.

[0071] Figure 24 For Figure 11 Partial exploded structural schematic view of the hair dryer.

[0072] Figure 25 For Figure 11 Structural schematic view of the housing assembly.

[0073] Reference signs:

[0074] 1000, hair dryer;

[0075] 10, housing assembly;

[0076] 11, main housing; 111, first sub-main housing; 112, second sub-main housing; 113, air blowing part; 1131, first accommodating space; 1132, first connecting part / annular groove; 1133, second connecting part; 1133a, first side part; 1133b, second side part; 1134, third clamping part; 1135, first bending part;

[0077] 1135a, first sub-bending part; 1135b, second sub-bending part; 1136, second bending part; 1136a, third sub-bending part; 1136b, fourth sub-bending part; 114, fourth recess; 115, sixth clamping part; 116, seventh recess; 117, eighth clamping part; 118, hand holding part; 1181, hand holding recess; 1182, fourth accommodating space; 119, stepped recess; 120, third protruding ring;

[0078] 12, first housing; 121, first air vent; 122, fourth connecting part / abutting ring; 123, second recess; 124, third recess; 125, first arm; 126, fifth clamping part; 127, accommodating groove; 128, magnetic member; 129, first clamping block; 130, through groove;

[0079] 13, second housing; 131, fifth connecting part / first protruding ring; 132, second vent; 133, fifth groove; 134, sixth groove; 135, second arm; 136, seventh clamping part; 138, second clamping block;

[0080] 14, third housing; 141, third vent;

[0081] 20, limiting structure; 21, second accommodating space; 211, first sub-accommodating space; 212, second sub-accommodating space; 22, first limiting piece; 221, first step; 222, first slot part; 2221, first groove; 223, second connecting part / first protruding part; 224, third connecting part / abutting slot; 225, first combining part; 226, fourth clamping part; 227, opening; 227a, first opening; 227b, second opening; 228, first clamping slot; 229, second clamping slot; 230, sixth connecting part / second protruding ring; 23, second limiting piece; 231, second step; 232, third step; 233, protruding point; 234, first air outlet; 235, second air outlet;

[0082] 30, air supply assembly; 31, motor; 311, outer shell; 3111, third accommodating space; 312, rotating shaft; 32, fan;

[0083] 52, first cover body; 53, circuit board; 54, cable; 55, battery pack; 56, flow guiding piece; 56a, pressurizing piece; 56b, dust removing piece; 56c, fan piece; 561, second protruding part; 57, control button. DETAILED DESCRIPTION

[0084] The embodiments of the present application will be further described in details with reference to the accompanying drawings and examples. The detailed description and drawings of the following examples are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application, and the present application can be implemented in many different forms, and is not limited to the specific examples disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0085] A blowing device (for example, a portable fan) is usually used in a situation where air flow needs to be accelerated. For example, a handheld fan in a portable fan has the advantages of small volume and convenience for carrying and using, and is more used in a narrow space, a densely populated environment and an environment where it needs to be moved at any time.

[0086] Correspondingly, when in use, the blowing device needs to have certain safety and smaller noise.

[0087] However, in the related art, there are safety and noise problems of the blowing device caused by the stability of the motor installation. Still taking the handheld fan as an example, in the related art, there are cases of unstable motor installation, for example, the motor moves along the rotation axis of the rotating shaft, and / or the remaining part of the motor except the rotating shaft rotates, which affects the product life and causes poor safety and large noise.

[0088] To solve the above problems existing in the related art, the present application provides a blowing device. The following will be described in combination with Figures 1 to 25 The blowing device provided by the embodiments of the present application will be described.

[0089] It should be understood that the implementation of the present application can have many, should not be construed as limited to the embodiments set forth herein, the embodiments set forth herein are only to more thoroughly and clearly understand the present application.

[0090] Exemplary blow dryer

[0091] Reference Figure 1 , Figure 3 , Figure 11 and Figure 13 The embodiments of the present application provide a blowing device 1000. The blowing device 1000 includes a housing assembly 10, a limiting structure 20 and a blowing assembly 30. The housing assembly 10 has a first accommodating space 1131. The limiting structure 20 is arranged in the first accommodating space 1131 and has a second accommodating space 21. The blowing assembly 30 is used to generate a first airflow and includes a motor 31 and a fan 32, the fan 32 is in transmission connection with the motor 31. The blowing assembly 30 is located in the first accommodating space 1131 and at least partially arranged in the second accommodating space 21. At least in the direction of the first airflow, the limiting structure 20 limits the movement of part of the blowing assembly 30, for example, limits the movement of the fixed part (for example, the shell 311 and the fixed part of the motor 31) of the blowing assembly 30. The fan 32 is arranged in the first accommodating space 1131 and in rotatable connection with the motor 31.

[0092] It should be noted that in this paper, movement can include rotation and / or displacement in a certain direction. In this paper, the first airflow direction refers to the direction of the airflow generated when the blowing assembly 30 works. It can be understood that the first airflow direction refers to the direction along the axis of the motor rotating shaft, from the second housing 13 to the first housing 12, and the opposite direction of the first airflow refers to the direction along the axis of the motor rotating shaft, from the first housing 12 to the second housing 13.

[0093] Exemplarily, the motor 31 can include a housing 311, a rotating shaft 312 and other structures. The rotating shaft 312 can be rotationally connected with the fan 32, and can drive the fan 32 to rotate to accelerate air flow when in use. Here, the other structures of the motor 31 can refer to the conventional settings of the motor 31, which will not be described herein.

[0094] Exemplarily, the hair dryer 1000 can further include a circuit board 53, a battery pack 55 and a control button 57. The circuit board 53 can be electrically connected with the motor 31 through a cable 54. For example, the first limiting structure 22 can be provided with an opening 227, and the cable 54 can pass through the opening 227 to be connected between the circuit board 53 and the motor 31. In some examples, referring to Figure 14 , the opening 227 can include a first opening 227a and a second opening 227b, and the cable can pass through one of the openings 227. At the same time, the opening 227 has a ventilation function to dissipate heat when the hair dryer 1000 is running. The control button 57 can be in communication connection with the circuit board 53. The battery pack 55 can be electrically connected with the motor 31 and the circuit board 53. In some embodiments, the control button 57 can also be in communication connection with a separate circuit board. Here, their specific connection and structure can refer to the conventional technology in the art, which will not be described herein.

[0095] It should be noted that the types and numbers of control buttons can be set according to the needs of specific application scenarios, which are not limited in the present application.

[0096] It should be further noted that the battery pack 55 can be rechargeable or disposable. Accordingly, the hair dryer 1000 can be provided with a charging port or a battery replacement structure.

[0097] According to the technical scheme of the present application, the limiting structure 20 is arranged inside the housing assembly 10, and the limiting structure 20 can cooperate with other structures of the hair dryer 1000 to limit the movement of the motor 31 at least in the first air flow direction. In this way, at least the movement of the motor 31 in the direction of the rotation axis of the rotating shaft 312 along the first air flow can be avoided when in operation, the installation stability of the motor 31 is improved, and the service life and safety of the hair dryer 1000 are further improved. In addition, the air supply assembly 30 is arranged in the second accommodating space 21 of the limiting structure 20, which can isolate the motor 31 and other components of the hair dryer 1000 to a certain extent, and limit the rotation of the non-rotating part of the air supply assembly 30, so as to reduce the noise caused by the movement of the motor 31 and avoid collision with other adjacent components.

[0098] Reference Figure 2 , Figure 3 and Figure 13, the second accommodating space 21 can include a first sub-accommodating space 211, and the limiting structure 20 can include a first limiting piece 22, the first limiting piece 22 having the first sub-accommodating space 211. At least part of the air supply assembly 30 can be arranged in the first sub-accommodating space 211. The first limiting piece 22 is provided with a first step 221 on a first side, and the first step 221 abuts against one end of the air supply assembly 30 which is not provided with the fan 32 in the first air flow direction.

[0099] In this way, the one end of the air supply assembly 30 which is not provided with the fan 32 abuts against the first step 221, and in cooperation with other structures, the motor 31 can be prevented from moving in the first air flow direction, while at least part of the air supply assembly 30 is located in the first sub-accommodating space 211, the first limiting piece 22 can constrain the rotation of the non-rotating part of the air supply assembly 30 to a certain extent, thereby improving the stability of the motor 31, reducing the operation noise of the hair dryer 1000, and thereby improving the safety and comfort of use.

[0100] Continuing to refer to Figure 2 , Figure 3 , the air supply assembly 50 the air supply assembly 30 can further include a shell 311. The shell 311 has a third accommodating space 3111, and at least part of the fan 32 is arranged in the third accommodating space 3111. The shell 311 is arranged in the first sub-accommodating space 211, and one end of the shell 311 abuts against the first step 221.

[0101] In this way, the first air flow can be guided by the shell 311 to ensure that the first air flow can be blown out in a certain direction and speed. Thus, the efficiency and performance of the hair dryer 1000 are improved. Moreover, the air outlet area of the shell 311 remains unchanged during the rotation of the fan 32. In this way, the air flow can be more concentrated and stable to blow to the user, providing a more comfortable and concentrated cool wind effect. In addition, the shell 311 can also absorb the vibration of the fan 32 and the motor 31, reduce the wind noise, and make the fan 32 run more quietly.

[0102] Here, the structure of the shell 311 and its air guiding arrangement can refer to conventional arrangements in the art, which will not be described here.

[0103] Continuing to refer to Figure 2 and Figure 3 , in some embodiments, the air supply assembly 30 is arranged in the first sub-accommodating space 211, that is, the fan 32 and the motor 31 are arranged in the first sub-accommodating space 211. The inner circumferential surface of the first limiting piece 22 can be provided with at least one first groove portion 222, and the at least one first groove portion 222 is used to increase the friction between the shell 311 and the first limiting piece 22. When the outer circumferential wall of the shell 311 abuts against the at least one first groove portion 222, the friction between the two can be increased, thereby preventing the shell 311 from rotating.

[0104] The inner circumferential surface of the first limiting member 22 is provided with a first groove portion 222. When the shell 311 abuts against the first groove portion 222, the friction between the shell 311 and the inner circumferential surface of the first limiting member 22 can be increased, the rotation of the shell 311 is further limited, the rotation of the non-rotating part of the motor 31 is further limited, the stability of the motor 31 is improved, and thus the stability and safety of the hair dryer 1000 are improved, and the operation noise is reduced.

[0105] Referring to Figure 5 , the at least one first groove portion 222 includes four first groove portions 222, and the four first groove portions 222 can be uniformly distributed on the inner circumferential surface of the first limiting member 22. In this way, when the shell 311 abuts against the first limiting member 22, the shell 311 abuts against the first groove portion 222 to achieve stable and uniform flow guiding.

[0106] Each first groove portion 222 can include a plurality of first grooves 2221. The first grooves 2221 can extend along the circumference of the first limiting member 22, and can maximize the friction between the shell 311 and the first limiting member 22, and further better limit the rotation of the shell 311.

[0107] It can be understood that the first groove portion 222 can also be provided in other quantities, such as two, three, six, eight, etc. In addition, the first grooves 2221 can also extend in other directions.

[0108] Referring to Figure 7 and Figure 8 , the shell assembly 10 can include a main shell 11. At least one end of the main shell 11 is provided with a first connecting portion 1132, and at least one end of the first limiting member 22 is correspondingly provided with a second connecting portion 223, and the first connecting portion 1132 connects the second connecting portion 223. The main shell 11 can include a first sub-main shell 111 and a second sub-main shell 112, for example, the main shell 11 can include a first sub-main shell 111 and a second main shell 112 which are substantially divided by a longitudinal section of a middle part of the main shell 11, and the first sub-main shell 111 and the second sub-main shell 112 are connected (for example, one or more of clamping, riveting, and screw connection, etc.) to form the main shell 11. The main shell 11 is composed of two parts, which is convenient for installing other structures arranged in the main shell 11.

[0109] Referring to Figures 5 to 7 , the first connecting portion 1132 can be a ring groove 1132, and the second connecting portion 223 can be a first boss 223, and the first boss 223 is accommodated in the ring groove. In an alternative example, the first connecting portion 1132 can be a first boss, and correspondingly, the second connecting portion 223 can be a ring groove.

[0110] Referring to Figures 5 to 7The main shell 11 has a blowing part 113, for example, the blowing part 113 is formed by the connection of the top of the first sub-main shell 111 and the second sub-main shell 112. The blowing part 113 has a first accommodating space 1131. The two ends of the blowing part 113 can be respectively provided with a first connecting part 1132, and the two ends of the first limiting piece 22 can be respectively provided with a second connecting part 223, and the first connecting part 1132 is connected with the second connecting part 223.

[0111] With reference to Figures 5 to 8 The shell assembly 10 can further include a first shell 12 having at least one first vent 121, and the first shell 12 can be connected with the first end of the blowing part 113. The inner circumferential surface of the first limiting piece 22 is provided with a third connecting part 224 at one end facing the first shell 12, and the first shell 12 is provided with a fourth connecting part 122 at one side facing the first limiting piece 22, and the third connecting part 224 is connected with the fourth connecting part 122. For example, the third connecting part 224 is an abutting groove 224, and the fourth connecting part 122 is an abutting ring 122, or the third connecting part 224 is an abutting ring, and the fourth connecting part 122 is an abutting groove, and the two abutting each other.

[0112] With reference to Figure 5 And Figure 8 In some examples, the outer circumferential side of the abutting ring 122 is provided with a first clamping block 129, and the inner circumferential wall of the side of the first limiting piece 22 connected with the first shell 12 is provided with a first clamping groove 228, and the first clamping block 129 is clamped with the first clamping groove 228, further improving the stability of the connection.

[0113] With reference to Figure 2 The first shell 12 and the first limiting piece 22 can be connected together by fasteners to improve the reliability of the connection. Of course, the first shell 12 and the first limiting piece 22 can also be connected together by riveting or welding.

[0114] With reference to Figure 3 And Figure 8 In some embodiments, the side of the first shell 12 facing the first limiting piece 22 can be provided with an accommodating groove 127, and the accommodating groove 127 is provided with a magnetic member 128. In this way, the external component can be connected and fixed by the magnetic member 128. For example, the magnetic member 128 can be connected with a flow guiding member 56 (which can be a pressurizing member 56a, a dust removing member 56b or a fan member 56c) for guiding the wind to blow out in a certain way. The pressurizing member 56a can make the wind blow out at a certain pressure, the dust removing member 56b can make the wind concentrate to blow out for dust removal, and the fan member 56c can make the wind blow out in a certain area and flow direction). At this time, the flow guiding member 56 can have magnetism or be provided with a magnetic part.

[0115] With reference to Figure 3 And Figure 9The shell assembly 10 can further include a second shell 13, which can be connected with the second end of the blowing part 113. The second shell 13 is provided with a fifth connecting part 131 on the side facing the first limiting part 22. The fifth connecting part 131 can be a first protruding ring 131, which can extend into the first sub-containing space 211 and abut against a sixth connecting part 230 provided on the inner circumferential wall of the first limiting part 22 (the sixth connecting part can be a second protruding ring 230) to limit the movement of the outer shell 311 in the first airflow direction together with the first limiting part 22. The second shell 13 has at least one second vent 132.

[0116] With reference to Figure 6 and Figure 9 , the outer circumferential side of the first protruding ring 131 is provided with a second clamping block 138, and the inner circumferential wall of the corresponding side of the second shell 13 is provided with a second clamping groove 229. The second clamping block 138 is clamped with the second clamping groove 229 to improve the stability of the connection.

[0117] With reference back to Figure 2 , the second shell 13 and the limiting structure 20 can be connected together by fasteners to improve the reliability of the connection. Of course, the second shell 13 and the limiting structure 20 can also be connected together by riveting or welding.

[0118] With reference to Figure 1 , Figure 7 , Figure 8 and Figure 10 , the shell assembly 10 can further include a third shell 14. The main shell 11 can further include a hand-held part 118, for example, the bottom of the first sub-main shell 111 and the second sub-main shell 112 are connected to form the hand-held part 118, and the hand-held part 118 is in communication with the blowing part 113. The third shell 14 can be connected (such as clamped, riveted or screwed, etc.) with the bottom of the hand-held part 118. The hand-held part 118 has a fourth containing space 1182, and the hair dryer 1000 further includes a battery pack 55, which is arranged in the fourth containing space 1182 and electrically connected with the motor 31. The third shell 14 can have at least one third vent 141 to facilitate ventilation and heat dissipation for the battery pack 55, etc. In one example, the third shell 14 can have a plurality of third vents 141.

[0119] With reference to Figure 2 , Figure 7 and Figure 8 , the hair dryer 1000 can further include a first cover 52, and the hand-held part 118 is provided with a hand-held recess 1181, and the first cover 52 is arranged at the hand-held recess 1181. In this way, the control button 57 can be arranged at the hand-held recess 1181 and exposed from the first cover 52, so that the overall structure of the hair dryer 1000 is relatively compact and beautiful.

[0120] Referring to Figure 13 In some alternative embodiments, the air supply assembly 30 is disposed in the first sub-accommodation space 211, and one end of the fan 32 is in abutment with the housing assembly 10.

[0121] Referring to Figure 12 And Figure 15 In some embodiments, the limiting structure 20 of the above alternative embodiments can further include a second limiting member 23. At least part of the second limiting member 23 can be disposed in the first sub-accommodation space 211, for example, a part of the second limiting member 23 is disposed in the first sub-accommodation space 211. The first end of the second limiting member 23 can be in abutment with the first step 221, and the second end of the second limiting member 23 can be in abutment with the housing assembly 10. The second accommodation space 21 can further include a second sub-accommodation space 212, and the second limiting member 23 has the second sub-accommodation space 212. At least part of the air supply assembly 30 can be disposed in the second sub-accommodation space 212.

[0122] Referring to Figure 13 The motor 31 can include a housing 311. The housing 311 has a third accommodation space 3111, and at least part of the fan 32 is disposed in the third accommodation space 3111. The housing 311 is disposed in the second sub-accommodation space 212, and the outer circumferential surface of the housing 311 can be in abutment with the inner circumferential surface of the second limiting member 23. The inner circumferential surface of the second limiting member 23 can be provided with a second step 231 and a third step 232, and the two ends of the housing 311 can be in abutment with the second step 231 and the third step 232, respectively.

[0123] In this way, the rotation of the housing 311 along the rotation axis of the rotation shaft 312 of the motor 31 can be avoided by the second limiting member 23, and the rotation of the housing 311 can be limited. Further, the movement of the non-rotating part of the motor 31 can be limited.

[0124] Continuing to refer to Figure 15 The outer circumferential surface of the second limiting member 23 can be provided with at least one protrusion 233. For example, the at least one protrusion 233 can be a plurality of protrusions 233, and the plurality of protrusions 233 can be uniformly distributed on the outer circumferential surface of the second limiting member 23. The plurality of protrusions 233 can be in abutment with the housing assembly 10 and / or the first limiting member 22. The protrusion 233 can be hemispherical.

[0125] In this way, the friction between the second limiting member 23 and the first limiting member 22 and the housing assembly 10 can be increased by the protrusions 233. Further, the rotation of the housing 311 can be further limited, and therefore, the movement of the non-rotating part of the motor 31 can be further limited. In addition, the uniform distribution of the protrusions 233 on the outer circumferential surface of the second limiting member 23 can cause the friction to be uniformly distributed.

[0126] It should be noted that the convex points 233 can also be provided in other shapes, such as ellipsoidal, conical or square, etc.

[0127] The second limiting member 23 can be rubber. In this way, while limiting the movement of the shell 311 and the non-rotating part of the motor 31, it has flexibility, can absorb vibration, and to some extent, isolate and absorb noise, further improving the operation stability and safety of the hair dryer 1000.

[0128] Next, referring to Figure 15 and Figure 16 , the first end of the second limiting member 23 can be provided with a first air port 234, and the cross-sectional area of the first air port 234 near the first step 221 is greater than the cross-sectional area of the first air port 234 near the shell 311. For example, the first air port 234 can be conical along the axial direction of the second limiting member 23, and the cross-sectional area of the first air port 234 gradually increases in the direction close to the first end of the second limiting member 23. In this way, when the first air port 234 is an air inlet, the air inlet gradually decreases, making the thickness of this area relatively thin, facilitating abutment and sealing with the shell assembly 10, preventing air leakage, and also playing a role in guiding the flow and concentrating the air to gradually increase the air speed of the air inlet, and reducing noise.

[0129] The second end of the second limiting member 23 can be provided with a second air port 235, and the cross-sectional area of the second air port 235 near the second end of the second limiting member 23 abutting the shell assembly 10 is greater than the cross-sectional area of the second air port 235 near the shell 311. For example, the second air port 235 can be conical along the axial direction of the second limiting member 23, and the cross-sectional area of the second air port 235 gradually increases in the direction close to the second end of the second limiting member 23. In this way, when the second air port 235 is an air outlet, the air outlet gradually increases, making the thickness of this area relatively thin, facilitating abutment and sealing with the shell assembly 10, preventing air leakage, and also playing a role in guiding the flow and ensuring the distribution of the air, while reducing noise.

[0130] It can be understood that the first air port 234 and the second air port 235 can also be in other shapes, not limited to conical.

[0131] It should be noted that in this application, the cross-sectional area is represented as the area of the cross section perpendicular to the direction of the first air flow.

[0132] The shell assembly 10 can include a main shell 11. The main shell 11 can include a first sub-main shell 111 and a second sub-main shell 112, and the first sub-main shell 111 and the second sub-main shell 112 are connected (for example, one or more of clamping, riveting and screw connection, etc.) to form the main shell 11. The other end of the shell 23 abuts the main shell 11.

[0133] The main housing 11 has a blowing part 113, for example, the top of the first sub-main housing 111 and the second sub-main housing 112 are connected to form the blowing part 113. The blowing part 113 has a first accommodating space 1131. One end of the first limiting part 22 can be provided with a first combining part 225 (for example, a boss), and the inner circumferential surface of the blowing part 113 can be provided with a second combining part 1133, for example, the second combining part 1133 is located on the first sub-main housing 111 and the second sub-main housing 112 at the same time. The second combining part 1133 abuts against the first combining part 225 to limit the movement of the first limiting part 22.

[0134] Referring to Figure 13 , Figure 17 and Figure 18 , the second combining part 1133 can include a first side part 1133a (for example, a first stop strip) and a second side part 1133b (for example, a first stop plate). The first side part 1133a can limit the movement of the first limiting part 22 in the first airflow direction and / or the opposite direction thereof, and the second side part 1133b can limit the rotation of the first limiting part 22.

[0135] In this way, the movement of the first limiting part 22 can be avoided, thereby ensuring the installation stability of the motor 31.

[0136] Referring to Figure 13 , Figures 17 to 20 , the inner circumferential surface of the blowing part 113 can be provided with a third clamping part 1134 (for example, a stop groove, a plurality of stop strips or stop blocks), and the outer circumferential surface of the first limiting part 22 can be provided with a fourth clamping part 226 (for example, a protruding strip) correspondingly, and the third clamping part 1134 clamps with the fourth clamping part 226. Of course, the third clamping part 1134 can also be a protruding strip, and correspondingly, the fourth clamping part 226 is a stop groove and the like.

[0137] Referring to Figure 13 , the inner circumferential surface of the blowing part 113 can be provided with a third protruding ring 120, and the other end of the first limiting part 22 can abut against the third protruding ring 120.

[0138] In this way, the rotation and displacement of the first limiting part 22 can be further limited through the cooperation of the third clamping part 1134 and the fourth clamping part 226.

[0139] Referring to Figure 20 and Figure 21The shell assembly 10 can further include a first shell 12, which can have at least one first air vent 121 to realize air supply. The first shell 12 can be connected with the first end of the air blowing part 113. One end of the first shell 12 can be provided with a second groove 123, and the first end of the air blowing part 113 can be provided with a first bending part 1135, and the second groove 123 accommodates the first bending part 1135. In this way, the connection of the first shell 12 and the main shell 11 is realized by the structure of the first shell 12 and the main shell 11 itself, avoiding the use of too many fasteners, facilitating installation, and making the overall structure of the air blowing device 1000 better.

[0140] Reference Figures 17 to 21 The first bending part 1135 can include a first sub-bending part 1135a and a second sub-bending part 1135b. The first sub-bending part 1135a can be arranged on the part of the first main shell 111 forming the first end of the air blowing part 113, and the second sub-bending part 1135b can be arranged on the part of the second main shell 112 forming the first end of the air blowing part 113. The second groove 123 accommodates the first sub-bending part 1135a and the second sub-bending part 1135b.

[0141] The inner wall (e.g., the bottom wall or the side wall) of the second groove 123 can be provided with at least one third groove 124, for example, the inner wall of the second groove 123 can be provided with 2 third grooves 124, and the 2 third grooves 124 are uniformly distributed on the inner wall of the second groove 123. The third groove 124 can be provided with a first arm 125. The first arm 125 is perpendicular or substantially perpendicular to the rotation axis of the motor 31, for example, the second arm 135 can have an angle of 0°-10° with the rotation axis of the rotating shaft 312. The side of the first bending part 1135 away from the rotation axis of the motor 31 can be provided with at least one fourth groove 114. During installation, the first arm 125 can be slid to a first predetermined position through the fourth groove 114, and then rotated to a second predetermined position.

[0142] In this way, the stable connection of the first shell 12 and the main shell 11 can be realized by the cooperation of the first arm 125 and the fourth groove 114, the use of fasteners is reduced, the installation process is simplified, and the cost is saved. Moreover, during installation, the fourth groove 114 can guide the first wall to be gradually installed in place.

[0143] It can be understood that the third groove 124 can also be provided in other numbers, such as 1, 3, or 4, etc.

[0144] Reference Figures 17 to 21The first arm 125 can be provided with a fifth clamping part 126 (for example, a groove) on the side close to the motor 31, the fourth groove 114 can be provided with a sixth clamping part 115 (for example, a protrusion), and the fifth clamping part 126 can be clamped with the sixth clamping part 115. In this way, the connection reliability of the first shell 12 and the main shell 11 can be further improved through the cooperation of the fifth clamping part 126 and the sixth clamping part 115. Here, the fifth clamping part 126 can also be a protrusion, and correspondingly, the sixth clamping part 115 can be a groove.

[0145] With reference to Figure 24 and Figure 25 , the first shell can be provided with a through groove 130, and the first end of the blowing part 113 can be provided with a stepped groove 119. The hair dryer can further include a flow guide 56 provided with a second boss 561. During installation, the second boss 561 can pass through the through groove 130 and the first part of the stepped groove 119 in sequence and then be rotated to be clamped with the second part of the stepped groove 119 to install the flow guide 56.

[0146] With reference to Figure 19 , Figure 20 and Figure 22 , the shell assembly 10 can further include a second shell 13, and the second end of the blowing part 113 can be connected with the second shell 13. The second shell 13 has at least one second air vent 132 for facilitating air intake.

[0147] With reference to Figures 17 to 20 and Figure 22 , the second shell 13 can be provided with a fifth groove 133, and the second end of the blowing part 113 can be provided with a second bent part 1136, and the fifth groove 133 accommodates the second bent part 1136.

[0148] With reference to Figures 17 to 20 and Figure 22 , the second bent part 1136 can include a third sub-bent part 1136a and a fourth sub-bent part 1136b, the first sub-main shell 111 can be provided with the third sub-bent part 1136a, and the second sub-main shell 112 can be provided with the fourth sub-bent part 1136b. The fifth groove 133 accommodates the first sub-bent part 1135a and the second sub-bent part 1135b.

[0149] With reference to Figures 17 to 20 and Figure 22The inner wall (e.g., the bottom wall or the side wall) of the fifth groove 133 can be provided with at least one sixth groove 134. For example, the inner wall of the fifth groove 133 can be provided with two sixth grooves 134, which are evenly distributed on the inner wall of the fifth groove 133. The sixth groove 134 can be provided with a second arm 135. The second arm 135 is perpendicular or substantially perpendicular to the rotation axis of the rotating shaft 312 of the motor 31, for example, the second arm 135 can have an included angle of 0°-10° with the rotation axis of the rotating shaft 312. The second bending part 1136 on the side away from the rotation axis of the motor 31 can be provided with at least one seventh groove 116. When installed, the second arm 135 slides through the seventh groove 116 to the third predetermined position and then rotates to the fourth predetermined position.

[0150] In this way, the stable connection between the second shell 13 and the main shell 11 can be achieved through the cooperation of the second arm 135 and the seventh groove 116, the use of fasteners can be reduced, the installation process can be simplified, and costs can be saved. Moreover, when installed, the seventh groove 116 can guide the gradual installation of the second wall 135 into place.

[0151] It can be understood that the sixth groove 134 can also be provided in other numbers, such as one, three, or four, etc.

[0152] Continuing to refer to Figures 17 to 20 and Figure 22 , the side of the second arm 135 close to the motor 31 can be provided with a seventh clamping part 136 (e.g., a groove), the seventh groove 116 can be provided with an eighth clamping part 117 (e.g., a protrusion), and the seventh clamping part 136 can be clamped with the eighth clamping part 117. In this way, the connection reliability of the second shell 13 and the main shell 11 can be further improved through the cooperation of the seventh clamping part 136 and the eighth clamping part 117.

[0153] Here, the seventh clamping part 136 can also be a protrusion, and correspondingly, the eighth clamping part 117 can be a groove.

[0154] Referring to Figure 19 , 20 and Figure 23 , the shell assembly 10 can further include a third shell 14, and the main shell 11 can further have a hand-held part 118. The bottom of the first sub-main shell 111 and the second sub-main shell 112 are connected to form the hand-held part 118, and the hand-held part 118 is in communication with the blowing part 113. The third shell 14 is connected (e.g., clamped, riveted, or welded) with the hand-held part 118, and the hand-held part 118 can have a fourth accommodating space 1182. The hair dryer 1000 can further include a battery pack 55, which is arranged in the fourth accommodating space 1182 and electrically connected with the motor 31. The third shell 14 has a third vent 141, which facilitates heat dissipation for the battery pack 55, thereby improving the safety and service life of the hair dryer 1000.

[0155] Referring back to Figure 12 The blowing device 1000 can further include a first cover 52, and the handheld portion 118 is provided with a handheld recess 1181, and the first cover 52 is arranged at the handheld recess 1181. In this way, the control button 57 and the like can be arranged at the handheld recess 1181, so that the structure is compact and space-saving.

[0156] In the following, in order to further understand the structure and working principle of the blowing device 1000 provided by the embodiments of the present application, the structure and working principle of the blowing device 1000 provided by the embodiments of the present application will be described in detail in combination with Figures 1 to 25 Some possible implementation manners of the blowing device 1000 of the present application will be further described in detail.

[0157] Firstly, referring to Figures 1 to 10 In a possible implementation manner, the blowing device 1000 can include a shell assembly 10, a limiting structure 20 and a blowing assembly 30.

[0158] The shell assembly 10 can include a main shell 11, a first shell 12 and a second shell 13. The main shell 11 can include a first sub-main shell 111 and a second sub-main shell 112 which are substantially divided by a middle longitudinal section of the main shell 11. After the first sub-main shell 111 and the second sub-main shell 112 are clamped to each other (the specific clamping structure is a conventional arrangement in the art, which will not be described here), a blowing portion 113 and a handheld portion 118 which communicate with each other are formed. The blowing portion 113 has a first accommodating space 1131. The handheld portion 118 has a fourth accommodating space 1182, and a battery pack 55 and a circuit board 53 of the blowing device 1000 are arranged in the fourth accommodating space 1182. The handheld portion 118 is provided with a handheld recess 1181, and a control button 57 can be arranged at the handheld recess 1181. A first cover 52 of the blowing device 1000 is arranged at the handheld recess 1181, and the control button 57 partially exposes the first cover 52. The circuit board 53 is electrically connected to the motor 31 through a cable 54, and the control button 57 is in communication connection with the circuit board 53. The battery pack 55 is electrically connected to the motor 31 and the circuit board 53.

[0159] The first shell 12 and the second shell 13 are respectively connected to two ends of the blowing portion 113, and the third shell 14 is clamped to the bottom end of the handheld portion 118. A plurality of first air vents 121 are arranged on the first shell 12 for air outlet, a plurality of second air vents 132 are arranged on the second shell 13 for air inlet, and a plurality of third air vents 141 are arranged on the third shell 14.

[0160] The limiting structure 20 comprises a first limiting member 22 arranged in the first accommodating space 1131 and having a first sub-accommodating space 211. The air supply assembly 30 comprises a motor 31 and a fan 32, the motor 31 comprising a housing 311 arranged in the first sub-accommodating space 211. The first limiting member 22 is provided with an opening 227 for cable 55 passing and ventilation. The housing 311 has a third accommodating space 3111 in which at least part of the fan 32 is arranged. The fan 32 is in driving connection with a rotating shaft 312 of the motor 31.

[0161] The first side of the first limiting member 22 is provided with a first step 221 abutting against the housing 311 in the direction of the rotating axis of the rotating shaft 312 of the motor 31. The inner circumferential surface of the first limiting member 22 is provided with four first groove portions 222 uniformly distributed on the inner circumferential surface of the first limiting member 22. Each first groove portion 222 comprises a plurality of first grooves 2221. The first grooves 2221 extend along the circumference of the first limiting member 22. The first grooves 2221 are used to increase the friction between the housing 311 and the first limiting member 22. When the housing 311 abuts against the first groove portion 222, the friction between them can be increased, thereby preventing the housing 311 from rotating.

[0162] The first limiting member 22 is provided with the opening 227 through which the cable 54 is connected between the circuit board 53 and the motor 31 of the hair dryer 1000.

[0163] The two ends of the first limiting member 22 are respectively provided with first bosses 223, and the two sides of the air blowing part 113 are respectively provided with ring grooves 1132 abutting against the first bosses 223 to limit the movement of the first limiting member 22.

[0164] The side of the first shell 12 facing the first limiting member 22 is provided with an abutting ring 122, and the inner circumferential surface of the first limiting member 22 facing the one end of the first shell 12 is provided with an abutting groove 224 abutting against the abutting ring 122.

[0165] The outer circumferential side of the abutting ring 122 is provided with a first clamping block 129, and the inner circumferential wall of the side of the first limiting member 22 connected with the first shell 12 is provided with a first clamping groove 228, and the first clamping block 129 is clamped with the first clamping groove 228.

[0166] The side of the second shell 13 facing the first limiting member 22 is provided with a first protruding ring 131 extending into the first sub-accommodating space 211 and abutting against the other end of the housing 311 and the second protruding ring 230 provided on the inner circumferential wall of the first limiting member 22 to limit the movement of the housing 311 in the first air flow direction together with the first limiting member 22.

[0167] The outer periphery of the first convex ring 131 is provided with a second clamping block 138, and the inner periphery wall of the side corresponding to the second shell 13 of the first limiting piece 33 is provided with a second clamping groove 229, and the second clamping block 138 is clamped with the second clamping groove 229.

[0168] The first shell 12 and the second shell 13 are connected together by the fastener and the first limiting piece 22 respectively. The side of the first shell 12 facing the first limiting piece 22 is provided with a containing groove 127, and the containing groove 127 is provided with a magnetic piece 128 for connecting the drainage piece 56.

[0169] Reference Figures 11 to 25 In another possible implementation, the hair dryer 1000 includes a shell assembly 10, a limiting structure 20, and a blowing assembly 30.

[0170] The shell assembly 10 includes a main shell 11, a first shell 12, and a second shell 13. The main shell 11 includes a first sub-main shell 111 and a second sub-main shell 112 which are separated by a middle longitudinal section of the main shell 11. The first sub-main shell 111 and the second sub-main shell 112 are clamped with each other (the specific clamping structure is a routine setting in the art, which will not be described here) to form a blowing part 113 and a handheld part 118 which communicate with each other.

[0171] The blowing part 113 has a first containing space 1131. The handheld part 118 has a fourth containing space 1182, and the circuit board 53 and the battery pack 55 of the hair dryer 1000 are arranged in the fourth containing space 1182. The handheld part 118 is provided with a handheld groove 1181, and the control button 57 is arranged at the handheld groove 1181. The first cover 52 of the hair dryer 1000 is arranged at the handheld groove 1181, and the control button 57 partially exposes the first cover 52. The circuit board 53 is electrically connected with the motor 31 through the cable 54, and the control button 57 is communicatively connected with the circuit board 53. The battery pack 55 is electrically connected with the motor 31 and the circuit board 53.

[0172] The first shell 12 and the second shell 13 are respectively connected with two ends of the blowing part 113, and the third shell 14 is clamped with the bottom end of the handheld part 118. The first shell 12 is provided with a plurality of first ventilation openings 121 for air outlet, and the second shell 13 is provided with a plurality of second ventilation openings 132 for air inlet. The third shell 14 is provided with a plurality of third ventilation openings 141.

[0173] The limiting structure 20 comprises a first limiting piece 22. The first limiting piece 22 is arranged in the first accommodating space 1131 and has a first sub-accommodating space 211. The air supply assembly 30 comprises a motor 31 and a fan 32. The motor 31 comprises a shell 311. One end of the air supply assembly 30, which is not provided with the fan 32, is arranged in the first sub-accommodating space 211. The shell 311 has a third accommodating space 3111. At least part of the fan 32 is arranged in the third accommodating space 3111. The fan 32 is in transmission connection with a rotating shaft 312 of the motor 31. The first limiting piece 22 is provided with an opening 227. The opening 227 comprises a first opening 227a and a second opening 227b. The cable 54 is connected between the circuit board 53 of the hair dryer 1000 and the motor 31 through the opening 227.

[0174] The inner circumferential surface of the air blowing part 113 is provided with a stop groove. The outer circumferential surface of the first limiting piece 22 is correspondingly provided with a protruding strip. The protruding strip is clamped in the stop groove to limit the movement of the first limiting piece 22. One end of the first limiting piece 22 is provided with a protruding boss. The inner circumferential surface of the air blowing part 113 is provided with a first stop strip and a second stop plate. The protruding boss is in abutment with the first stop strip and the second stop plate. The second combining part 1133 is in abutment with the first combining part 225 to limit the movement of the first limiting piece 22. The inner circumferential surface of the air blowing part 113 is provided with a third protruding ring 120. The other end of the first limiting piece 22 is in abutment with the third protruding ring 120.

[0175] The first side of the first limiting piece 22 is provided with a first step 221. In the first air flow direction, the first step 221 is in abutment with one end of the shell 311. The other end of the shell 311 is in abutment with a limiting groove arranged on the inner wall of the air blowing part 113. The outer circumferential surface of the shell 311 is in abutment with part of the inner circumferential surface of the air blowing part 113.

[0176] One end of the first shell 12 is provided with a second groove 123. The first end of the air blowing part 113 can be provided with a first bent part 1135. The second groove 123 accommodates the first bent part 1135. The first bent part 1135 comprises a first sub-bent part 1135a and a second sub-bent part 1135b. The first sub-main shell 111, which forms part of the first end of the air blowing part 113, is provided with the first sub-bent part 1135a. The second sub-main shell 112, which forms part of the first end of the air blowing part 113, is provided with the second sub-bent part 1135b. The second groove 123 accommodates the first sub-bent part 1135a and the second sub-bent part 1135b.

[0177] The inner wall of the second groove 123 is provided with two third grooves 124, which are evenly distributed on the inner wall of the second groove 123. The third groove 124 is provided with a first arm 125. The first arm 125 is perpendicular or substantially perpendicular to the rotation axis of the motor 31. The first bending part 1135 is provided with at least one fourth groove 114 on the side away from the rotation axis of the motor 31. In the installation, the first arm 125 can slide through the fourth groove 114 to the first predetermined position, and then rotate to the second predetermined position.

[0178] The side of the first arm 125 close to the motor 31 is provided with a groove, and the fourth groove 114 is provided with a protrusion. The groove and the protrusion are clamped.

[0179] The second shell 13 is provided with a fifth groove 133, and the second end of the blowing part 113 is provided with a second bending part 1136. The fifth groove 133 accommodates the second bending part 1136. The second bending part 1136 includes a third sub-bending part 1136a and a fourth sub-bending part 1136b. The third sub-bending part 1136a is arranged on the part of the first main shell 111 forming the second end of the blowing part 113, and the fourth sub-bending part 1136b is arranged on the part of the second main shell 112 forming the second end of the blowing part 113. The fifth groove 133 accommodates the first sub-bending part 1135a and the second sub-bending part 1135b.

[0180] The inner wall of the fifth groove 133 is provided with two sixth grooves 134, which are evenly distributed on the inner wall of the fifth groove 133. The sixth groove 134 is provided with a second arm 135. The second arm 135 is perpendicular or substantially perpendicular to the rotation axis of the rotating shaft 312 of the motor 31, that is, the second arm can have an included angle of 0°-10° with the rotation axis of the rotating shaft 312. The second bending part 1136 is provided with a seventh groove 116 on the side away from the rotation axis of the motor 31. In the installation, the second arm 135 slides through the seventh groove 116 to the third predetermined position, and then rotates to the fourth predetermined position.

[0181] The side of the second arm 135 close to the motor 31 is provided with a groove, and the seventh groove 116 is provided with a protrusion. The groove and the protrusion are clamped.

[0182] The first shell is provided with a through groove 130, and the first end of the blowing part 113 is provided with a stepped groove 119. The hair dryer further includes a flow guide 56, and the flow guide is provided with a second boss 561. In the installation, the second boss 561 can rotate to be clamped with the second part of the stepped groove 119 after sequentially passing through the through groove 130 and the first part of the stepped groove 119. The flow guide 56 can make the air flowing out of the hair dryer 1000 gather in a certain direction.

[0183] Further, the limiting structure 20 further comprises a second limiting piece 23. Part of the second limiting piece 23 is arranged in the first sub-containing space 211. The second limiting piece 23 has a second sub-containing space 212, and at least part of the air supply assembly 30 can be arranged in the second sub-containing space 212.

[0184] The inner circumferential surface of the second limiting piece 23 is provided with a second step 231 and a third step 232. At this time, the outer shell 311 can be arranged in the second sub-containing space 212, the outer circumferential surface of the outer shell 311 can be in abutment with the inner circumferential surface of the second limiting piece 23, and the two ends of the outer shell 311 can be in abutment with the second step 231 and the third step 232, respectively. The first end of the second limiting piece 23 can be in abutment with the first step 221.

[0185] The outer circumferential surface of the second limiting piece 23 is provided with a plurality of convex points 233. The plurality of convex points 233 are uniformly distributed on the outer circumferential surface of the second limiting piece 23 and are in abutment with the shell assembly 10 and the first limiting piece 22. The second limiting piece 23 is made of rubber. The first end of the second limiting piece 23 is provided with a first air port 234, which is tapered along the axial direction of the second limiting piece 23, and the cross-sectional area of the first air port 234 gradually increases in the direction close to the first end of the second limiting piece 23. The second end of the second limiting piece 23 is provided with a second air port 235, which is tapered along the axial direction of the second limiting piece 23, and the cross-sectional area of the second air port 235 gradually increases in the direction close to the second end of the second limiting piece 23.

[0186] In this embodiment, the various components of the air blowing device 1000 are stably connected together through the connecting parts of the structures themselves, without the need for additional fasteners, facilitating installation and saving costs.

[0187] It should be noted that other aspects of the structure of the air blowing device 1000 can refer to conventional structures in the art, and for the purpose of brevity, this application will not be described in detail.

[0188] It should be noted that the air blowing device in the present application can be a portable fan, such as a handheld fan.

[0189] All terms used in the present application have the same meaning as understood by those of ordinary skill in the art to which the present application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless specifically defined herein.

[0190] Techniques, methods, and equipment known to those of ordinary skill in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods, and equipment should be considered part of the specification.

[0191] It should be understood that the term "includes" and its variations are open-ended and mean "comprising" unless otherwise noted. The term "comprising" means "including, but not limited to". The term "based on" means "based, at least in part, on".

[0192] It should be understood that, although the terms "first" or "second" or the like can be used herein to describe various elements (such as the first protrusion and the second protrusion), these elements are not limited by these terms. These terms are only used to distinguish one element from another.

[0193] It should be noted that in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0194] It should also be noted that in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" and "abutting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; abutting can be direct abutting, or it can be indirect abutting through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be an intermediate device between the specific device and the first device or the second device, or there can be no intermediate device.

[0195] The scope of protection of the present application is not limited to the above-mentioned embodiments, any person skilled in the art can think of changes or replacements within the technical scope disclosed by the present application, which should be covered by the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the scope of protection of the claims.

Claims

1. A blow-off device, characterized in that The application relates to a shell assembly, a limiting structure and a blowing assembly. The shell assembly has a first accommodating space. The limiting structure is arranged in the first accommodating space and has a second accommodating space. The blowing assembly is used for generating a first air flow and comprises a motor and a fan, the fan is in transmission connection with the motor, the blowing assembly is located in the first accommodating space and is arranged at least partially in the second accommodating space, and the limiting structure limits the movement of part of the blowing assembly at least in the direction of the first air flow.

2. The blow-off device according to claim 1, characterized in that The limiting structure comprises a first limiting piece, the second accommodating space comprises a first sub-accommodating space, the first limiting piece has the first sub-accommodating space, part of the blowing assembly is arranged in the first sub-accommodating space, a first step is arranged on the first side of the first limiting piece, and the first step is in abutment with one end of the blowing assembly without the fan in the direction of the first air flow.

3. The blow-off device according to claim 2, characterized in that The motor comprises a shell, the shell has a third accommodating space, part of the fan is arranged in the third accommodating space, the shell is arranged in the first sub-accommodating space, and one end of the shell is in abutment with the first step.

4. The blow-off device according to claim 3, characterized in that An inner circumferential surface of the first limiting piece is provided with at least one first groove part, and the at least one first groove part is used for increasing the friction between the shell and the first limiting piece.

5. The blow-off device according to claim 4, characterized in that The at least one first groove part comprises four first groove parts, and the four first groove parts are uniformly distributed on the inner circumferential surface of the first limiting piece.

6. The blow-off device according to claim 4, characterized in that The first groove part comprises a plurality of first grooves, and the plurality of first grooves extend along the circumferential surface of the first limiting piece.

7. A hair drying device as claimed in any one of claims 3 to 6, characterised in that, The shell assembly comprises a main shell, at least one end of the main shell is provided with a first connecting part, at least one end of the first limiting piece is correspondingly provided with a second connecting part, and the first connecting part is connected with the second connecting part.

8. The blow-off device according to claim 7, characterized in that The first connecting part is a ring groove, the second connecting part is a first boss, and the ring groove accommodates the first boss.

9. The hair drying device of claim 7, wherein The main shell comprises a first sub-main shell and a second sub-main shell, and the first sub-main shell and the second sub-main shell are connected to form the main shell.

10. The hair drying device of claim 7, wherein The main shell has a blowing part, the blowing part has the first accommodating space, the shell assembly further comprises a first shell, the first shell has at least one first air vent, and the first shell is connected with a first end of the blowing part. An inner circumferential surface of the first limiting piece is provided with a third connecting part towards one end of the first shell, one side of the first shell towards the first limiting piece is provided with a fourth connecting part, and the third connecting part is connected with the fourth connecting part.

11. The hair drying device of claim 10, wherein The third connecting part is an abutment groove, the fourth connecting part is an abutment ring, and the abutment ring is in abutment with the abutment groove.

12. The hair drying device of claim 11, wherein, An outer circumferential side of the abutment ring is provided with a first clamping block, an inner circumferential wall of one side of the first limiting piece connected with the first shell is provided with a first clamping groove, and the first clamping block is clamped with the first clamping groove.

13. The hair drying device of claim 10, wherein, One side of the first shell towards the first limiting piece has an accommodating groove, and a magnetic piece is arranged in the accommodating groove.

14. The hair drying device of claim 10, wherein, The shell assembly further comprises a second shell connected with the second end of the air blowing part, the second shell is provided with a fifth connecting part on the side facing the first limiting part, the fifth connecting part extends into the first sub-containment space and abuts against a sixth connecting part provided on the inner circumferential wall of the other end of the outer shell and the first limiting part, and the second shell has at least one second vent.

15. The hair drying device of claim 14, wherein, The fifth connecting part is a first protruding ring, the sixth connecting part is a second protruding ring, the outer circumferential side of the first protruding ring is provided with a second clamping block, the inner circumferential wall of the corresponding side of the second shell is provided with a second clamping groove, and the second clamping block is clamped with the second clamping groove.

16. The hair drying device of claim 10, wherein The shell assembly further comprises a third shell, and the main shell further comprises a hand-holding part, the third shell is connected with the hand-holding part, the hand-holding part is communicated with the air blowing part, the hand-holding part has a fourth containment space, and the blowing device further comprises a battery pack, the battery pack is arranged in the fourth containment space and is electrically connected with the motor.

17. The hair drying device of claim 16, wherein The third shell has at least one third vent; and / or The blowing device further comprises a first cover body, the hand-holding part is provided with a hand-holding groove, and the first cover body is arranged at the hand-holding groove.

18. The hair drying device of claim 2, wherein, Part of the air supply assembly is arranged in the first sub-containment space, and one end of the fan of the air supply assembly abuts against the shell assembly.

19. The hair drying device of claim 18, wherein, The limiting structure further comprises a second limiting part, at least part of the second limiting part is arranged in the first sub-containment space, a first end of the second limiting part abuts against the first step, the second containment space further comprises a second sub-containment space, the second limiting part has the second sub-containment space, and at least part of the air supply assembly is arranged in the second sub-containment space.

20. The hair drying device of claim 19, wherein, The motor comprises an outer shell, the outer shell has a third containment space, at least part of the fan is arranged in the third containment space, the outer shell is arranged in the second sub-containment space, an inner circumferential surface of the second limiting part is provided with a second step and a third step, two ends of the outer shell respectively abut against the second step and the third step, and a second end of the second limiting part abuts against the shell assembly.

21. The hair drying device of claim 19, wherein, The outer circumferential surface of the second limiting part is provided with at least one protruding point, the at least one protruding point abuts against the shell assembly and / or the first limiting part; and / or The second limiting part is rubber.

22. The hair drying device of claim 20, wherein The first end of the second limiting part is provided with a first air port, and the cross-sectional area of the first air port close to the first step is greater than the cross-sectional area of the first air port close to the outer shell; And / or The second end of the second limiting part is provided with a second air port, and the cross-sectional area of the second air port close to the second end of the second limiting part abutting against the shell assembly is greater than the cross-sectional area of the second air port close to the outer shell.

23. A hair drying device according to any one of claims 19 to 22, wherein, The shell assembly comprises a main shell having a blowing part with the first accommodating space, one end of the first limiting part is provided with a first combining part, and an inner circumferential surface of the blowing part is provided with a second combining part, the second combining part abuts against the first combining part to limit movement of the first limiting part.

24. The hair drying device of claim 23, wherein, The second combining part comprises a first side part and a second side part, the first side part limits movement of the first limiting part in the opposite direction of the first airflow, and the second side part limits rotation of the first limiting part.

25. The hair drying device of claim 23, wherein, The inner circumferential surface of the blowing part is provided with a third clamping part, and the outer circumferential surface of the first limiting part is correspondingly provided with a fourth clamping part, the third clamping part clamps the fourth clamping part; and / or The inner circumferential surface of the blowing part is provided with a third protruding ring, and the other end of the first limiting part abuts against the third protruding ring.

26. The hair drying device of claim 23, wherein The main shell comprises a first sub-main shell and a second sub-main shell, the first sub-main shell and the second sub-main shell are connected to form the main shell, and the first sub-main shell and the second sub-main shell are connected at the top to form the blowing part.

27. The hair drying device of claim 26, wherein The shell assembly further comprises a first shell having at least one first ventilation opening, the first shell is connected to a first end of the blowing part, the first shell is provided with a second groove, the first end of the blowing part is provided with a first bending part, and the second groove accommodates the first bending part.

28. The hair drying device of claim 27, wherein, The first bending part comprises a first sub-bending part and a second sub-bending part, the first sub-main shell is provided with the first sub-bending part, the second sub-main shell is provided with the second sub-bending part, and the second groove accommodates the first sub-bending part and the second sub-bending part.

29. The hair drying device of claim 27, wherein, An inner wall of the second groove is provided with at least one third groove, the third groove is provided with a first arm, the first arm is perpendicular or substantially perpendicular to the motor rotation axis, and a side of the first bending part away from the motor rotation axis is provided with at least one fourth groove, in the installation, the first arm slides to a first predetermined position through the fourth groove and then rotates to a second predetermined position.

30. The hair drying device of claim 29, wherein, A side of the first arm close to the motor is provided with a fifth clamping part, and the fourth groove is provided with a sixth clamping part, the fifth clamping part clamps the sixth clamping part.

31. The hair drying device of claim 27, wherein, The first shell is provided with a through groove, the first end of the blowing part is provided with a stepped groove, the blowing device further comprises a flow guide part, the flow guide part is provided with a second boss, in the installation, the second boss rotates to clamp a second part of the stepped groove after sequentially passing through the through groove and a first part of the stepped groove.

32. The hair drying device of claim 27, wherein, The shell assembly further comprises a second shell, a second end of the blowing part is connected to the second shell, and the second shell has at least one second ventilation opening.

33. The hair drying device of claim 32, wherein, The second shell is provided with a fifth groove, the second end of the blowing part is provided with a second bending part, and the fifth groove accommodates the second bending part.

34. The hair drying device of claim 33, wherein, The second bending part comprises a third sub-bending part and a fourth sub-bending part, the first sub-main shell is provided with the third sub-bending part, the second sub-main shell is provided with the fourth sub-bending part, and the fifth groove accommodates the third sub-bending part and the fourth sub-bending part.

35. The hair drying device of claim 34, wherein, An inner wall of the fifth groove is provided with at least one sixth groove, the sixth groove is provided with a second arm, the second arm is perpendicular or substantially perpendicular to the motor rotation axis, and at least one seventh groove is arranged on a side of the second bending part away from the motor rotation axis, the second arm is rotated to a fourth preset position after sliding to a third preset position through the seventh groove during installation.

36. The hair drying device of claim 35, wherein, The second arm is provided with a seventh clamping part on a side close to the motor, the seventh groove is provided with an eighth clamping part, and the seventh clamping part is clamped with the eighth clamping part.

37. The hair drying device of claim 26, wherein, The shell assembly further comprises a third shell, the main shell further has a hand-holding part, the bottom of the first sub-main shell and the second sub-main shell are connected to form the hand-holding part, the hand-holding part is in communication with the blowing part, the third shell is connected with the hand-holding part, the hand-holding part has a fourth accommodation space, the blowing device further comprises a battery pack, and the battery pack is arranged in the fourth accommodation space and electrically connected with the motor.

38. The hair drying device of claim 37, wherein, The third shell has at least one third air vent; and / or The blowing device further comprises a first cover, the hand-holding part is provided with a hand-holding groove, and the first cover is arranged at the hand-holding groove.

39. The hair drying device of claim 2, wherein, At least one opening is arranged on the first limiting part, and the at least one opening is used for threading a cable.

40. The hair drying device of claim 39, wherein, The at least one opening comprises a first opening and a second opening.

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