Air-blowing device

Abstract

An air-blowing device (1000), comprising a housing assembly (10), a limiting structure (20), and an air supply assembly (30). The housing assembly (10) is provided with a first accommodating space (1131). The limiting structure (20) is disposed in the first accommodating space (1131) and is provided with a second accommodating space (21). The air supply assembly (30) is configured to generate a first airflow, and comprises an electric motor (31) and a fan (32), which are in transmission connection with each other. The air supply assembly (30) is located in the first accommodating space (1131), and is at least partially disposed in the second accommodating space (21); and in at least the direction of the first airflow, the limiting structure (20) restricts the movement of part of the air supply assembly (30). The air-blowing device restricts the movement of the electric motor in the direction of the first airflow, thereby improving the stability and safety of the air-blowing device.

Description

blower Technical Field

[0001] This application relates to the field of hair dryer technology, and more particularly to a hair dryer device. Background Technology

[0002] A wind-blowing device, such as an electric fan, is a mechanical device that generates wind by electrically accelerating the speed of airflow. In daily life, electric fans are widely used in situations where air circulation is required.

[0003] Traditional electric fans are bulky and inconvenient to carry and move, which limits their application. To adapt to certain usage scenarios, such as confined spaces, and to facilitate movement, smaller portable fans (e.g., handheld fans) have emerged.

[0004] However, in related technologies, portable fans suffer from poor motor installation stability. During use, the portable fan's motor needs to drive the fan to rotate at high speed. Unstable motor installation can affect product lifespan and compromise safety. Summary of the Invention

[0005] In view of this, this application provides a blower device, which aims to solve the problem of poor installation stability of portable fan motors in related technologies.

[0006] Embodiments of this application provide a blower device. The blower device includes a housing assembly, a limiting structure, and an air delivery assembly. The housing assembly has a first receiving space, the limiting structure is disposed within the first receiving space, and has a second receiving space. The air delivery assembly is used to generate a first airflow, and includes a motor and a fan, the fan being drivenly connected to the motor. The air delivery assembly is located within the first receiving space and is at least partially disposed within the second receiving space. At least in the first airflow direction, the limiting structure restricts the movement of a portion of the air delivery assembly.

[0007] In conjunction with the first aspect described above, in one possible implementation, the limiting structure includes a first limiting member, and the second receiving space includes a first sub-receiving space, with the first limiting member having the first sub-receiving space. At least a portion of the air supply assembly is disposed within the first sub-receiving space, and a first step is provided on a first side of the first limiting member. In the first airflow direction, the first step abuts against the end of the air supply assembly without a fan.

[0008] In conjunction with the first aspect described above, in one possible implementation, the motor includes a housing having a third receiving space, within which at least a portion of the fan is disposed. The housing is disposed within a first sub-receiving space, and one end of the housing abuts against a first step.

[0009] In conjunction with the first aspect described above, in one possible implementation, the inner circumferential surface of the first limiting member is provided with at least one first groove, the at least one first groove being used to increase the friction between the outer shell and the first limiting member.

[0010] In conjunction with the first aspect described above, in one possible implementation, at least one first groove includes four first grooves, which are evenly distributed on the inner circumferential surface of the first limiting member.

[0011] In conjunction with the first aspect described above, in one possible implementation, the first groove includes a plurality of first recesses that extend circumferentially along the inner peripheral surface of the first limiting member.

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

[0013] In conjunction with the first aspect described above, in one possible implementation, the first connecting portion is an annular groove, and the second connecting portion is a first boss, with the annular groove accommodating the first boss.

[0014] In conjunction with the first aspect above, in one possible implementation, the main housing includes a first sub-main housing and a second sub-main housing, which are connected to form the main housing.

[0015] In conjunction with the first aspect described above, in one possible implementation, the main housing has an air blowing section with a first receiving space. The housing assembly further includes a first housing having at least one first vent, and the first housing is connected to a first end of the air blowing section. A third connecting portion is provided on the inner circumferential surface of the first limiting member facing the end of the first housing, and a fourth connecting portion is provided on the side of the first housing facing the first limiting member, with the third connecting portion connected to the fourth connecting portion.

[0016] In conjunction with the first aspect above, in one possible implementation, the third connecting part is an abutting groove, the fourth connecting part is an abutting ring, and the abutting ring abuts against the abutting groove.

[0017] In conjunction with the first aspect above, in one possible implementation, a first locking block is provided on the outer peripheral side of the abutment ring, and a first locking groove is provided on the inner peripheral wall of the side of the first limiting member connected to the first housing, and the first locking block engages with the first locking groove.

[0018] In conjunction with the first aspect described above, in one possible implementation, the first housing has a receiving groove on the side facing the first limiting member, and a magnetic element is disposed in the receiving groove.

[0019] In conjunction with the first aspect described above, in one possible implementation, the housing assembly further includes a second housing connected to the second end of the air blowing section. The second housing has a fifth connecting portion on the side facing the first limiting member. The fifth connecting portion extends into the first sub-accommodating space and abuts against the other end of the housing and a sixth connecting portion disposed on the inner peripheral wall of the first limiting member. The second housing has at least one second vent.

[0020] In conjunction with the first aspect described above, in one possible implementation, the fifth connecting part is a first protruding ring, and the sixth connecting part is a second protruding ring. A second locking block is provided on the outer peripheral side of the first protruding ring, and a second locking groove is provided on the inner peripheral wall of the first limiting member corresponding to the second housing, and the second locking block engages with the second locking groove.

[0021] In conjunction with the first aspect described above, in one possible implementation, the housing assembly further includes a third housing, and the main housing further includes a handheld portion. The third housing is connected to the handheld portion, and the handheld portion communicates with the blowing portion. The handheld portion has a fourth receiving space, and the blowing device further includes a battery pack disposed in the fourth receiving space and electrically connected to a motor.

[0022] In conjunction with the first aspect above, in one possible implementation, the third housing has at least one third vent; and / or, the blower further includes a first cover, a handle portion having a handle groove, and the first cover being disposed at the handle groove.

[0023] In conjunction with the first aspect above, in one possible implementation, a portion of the air supply assembly is disposed within the first sub-accommodating space, and one end of the air supply assembly having a fan abuts against the housing assembly.

[0024] In conjunction with the first aspect described above, in one possible implementation, the limiting structure further includes a second limiting member. At least a portion of the second limiting member is disposed within the first sub-accommodating space, a first end of the second limiting member abuts against the first step, the second accommodating space further includes a second sub-accommodating space, the second limiting member has the second sub-accommodating space, and at least a portion of the air supply assembly is disposed within the second sub-accommodating space.

[0025] In conjunction with the first aspect described above, in one possible implementation, the motor includes a housing having a third receiving space, with at least a portion of the fan disposed within the third receiving space, and the housing disposed within a second sub-receiving space. The inner circumferential surface of the second limiting member is provided with a second step and a third step, and both ends of the housing abut against the second step and the third step, respectively. The second end of the second limiting member abuts against the housing assembly.

[0026] In conjunction with the first aspect above, in one possible implementation, the outer peripheral surface of the second limiting member is provided with at least one protrusion, the at least one protrusion abutting against the housing assembly and / or the first limiting member; and / or, the second limiting member is made of rubber.

[0027] In conjunction with the first aspect above, in one possible implementation, the first end of the second limiting member is provided with a first air vent, and the cross-sectional area of ​​the first air vent near the first step is greater than the cross-sectional area of ​​the first air vent near the outer shell; and / or, the second end of the second limiting member is provided with a second air vent, and the cross-sectional area of ​​the second air vent near the point where the second end of the second limiting member abuts against the housing assembly is greater than the cross-sectional area of ​​the second air vent near the outer shell.

[0028] In conjunction with the first aspect described above, in one possible implementation, the housing assembly includes a main housing having an air blowing section having a first receiving space. A first engaging portion is provided at one end of a first limiting member, and a second engaging portion is provided on the inner circumferential surface of the air blowing section. The second engaging portion abuts against the first engaging portion to restrict the movement of the first limiting member.

[0029] In conjunction with the first aspect described above, in one possible implementation, the second coupling portion includes a first side portion and a second side portion, the first side portion restricting the movement of the first limiting member in the opposite direction of the first airflow, and the second side portion restricting the rotation of the first limiting member.

[0030] In conjunction with the first aspect above, in one possible implementation, a third engaging portion is provided on the inner circumferential surface of the blowing part, and a fourth engaging portion is correspondingly provided on the outer circumferential surface of the first limiting member, with the third engaging portion engaging with the fourth engaging portion; and / or, a third protruding ring is provided on the inner circumferential surface of the blowing part, with the other end of the first limiting member abutting against the third protruding ring.

[0031] In conjunction with the first aspect above, in one possible implementation, the main housing includes a first sub-main housing and a second sub-main housing, the first sub-main housing and the second sub-main housing are connected to form the main housing, and the top of the first sub-main housing and the second sub-main housing are connected to form an air blowing section.

[0032] In conjunction with the first aspect described above, in one possible implementation, the housing assembly further includes a first housing having at least one first vent, the first housing being connected to a first end of the air blowing portion, the first housing being provided with a second groove, the first end of the air blowing portion being provided with a first bend, and the second groove accommodating the first bend.

[0033] In conjunction with the first aspect described above, in one possible implementation, the first bending portion includes a first sub-bending portion and a second sub-bending portion, a first sub-main housing is provided with the first sub-bending portion, a second sub-main housing is provided with the second sub-bending portion, and a second groove accommodates the first sub-bending portion and the second sub-bending portion.

[0034] In conjunction with the first aspect described above, in one possible implementation, 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's rotation axis. At least one fourth groove is provided on the side of the first bent portion away from the motor's rotation axis. During installation, the first arm slides through the fourth groove to a first predetermined position and then rotates to a second predetermined position.

[0035] In conjunction with the first aspect described above, in one possible implementation, a fifth engaging portion is provided on the side of the first arm near the motor, and a sixth engaging portion is provided in the fourth groove, with the fifth engaging portion engaging with the sixth engaging portion.

[0036] In conjunction with the first aspect above, in one possible implementation, the first housing is provided with a through groove, the first end of the blowing part is provided with a stepped groove, and the blowing device further includes a guide member, which is provided with a second boss. During installation, the second boss passes through the first part of the through groove and the stepped groove in sequence and then rotates to engage with the second part of the stepped groove.

[0037] In conjunction with the first aspect described above, in one possible implementation, the housing assembly further includes a second housing, with a second end of the air blowing portion connected to the second housing, and the second housing having at least one second vent.

[0038] In conjunction with the first aspect described above, in one possible implementation, the second housing is provided with a fifth groove, and the second end of the air blowing part is provided with a second bent part, the fifth groove accommodating the second bent part.

[0039] In conjunction with the first aspect described above, in one possible implementation, the second bending portion includes a third sub-bending portion and a fourth sub-bending portion. The first sub-main housing is provided with the third sub-bending portion, the second sub-main housing is provided with the fourth sub-bending portion, and the fifth groove accommodates the third sub-bending portion and the fourth sub-bending portion.

[0040] In conjunction with the first aspect described above, in one possible implementation, 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's rotation axis. At least one seventh groove is provided on the side of the second bend away from the motor's rotation axis. During installation, the second arm slides through the seventh groove to a third predetermined position and then rotates to a fourth predetermined position.

[0041] In conjunction with the first aspect above, in one possible implementation, a seventh locking part is provided on the side of the second arm near the motor, and an eighth locking part is provided in the seventh groove, with the seventh locking part and the eighth locking part locking together.

[0042] In conjunction with the first aspect described above, in one possible implementation, the housing assembly further includes a third housing, the main housing also having a handle, the bottom of the first sub-main housing and the second sub-main housing being connected to form the handle, the handle communicating with the blowing part. The third housing is connected to the handle, the handle having a fourth receiving space, and the blowing device further includes a battery pack disposed in the fourth receiving space and electrically connected to a motor.

[0043] In conjunction with the first aspect above, in one possible implementation, the third housing has at least one third vent; and / or, the blower further includes a first cover, a handle portion having a handle groove, and the first cover being disposed at the handle groove.

[0044] In conjunction with the first aspect above, in one possible implementation, the first limiting member is provided with at least one opening for a cable to pass through.

[0045] In conjunction with the first aspect described above, in one possible implementation, at least one opening includes a first opening and a second opening.

[0046] According to the technical solution of this application, a limiting structure is provided inside the housing assembly. At least in the first airflow direction, the limiting structure can cooperate with other structures to restrict the movement of the motor. In this way, during operation, the motor can be prevented from moving along the first airflow direction, improving the installation stability of the motor, and thus improving the service life and safety of the blower. Attached Figure Description

[0047] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the drawings only show some embodiments of this application and should not be considered as a limitation of the scope. It should also be understood that the same or similar reference numerals are used in the drawings to represent the same or similar elements. Furthermore, it should be understood that the drawings are merely schematic, and the dimensions and scale of the elements in the drawings are not necessarily precise.

[0048] Figure 1 is a three-dimensional structural schematic diagram of a blower according to an embodiment of the present application.

[0049] Figure 2 is a schematic diagram of the exploded structure of the blowing device in Figure 1.

[0050] Figure 3 is a cross-sectional view of the blowing device in Figure 1.

[0051] Figure 4 is a schematic diagram of the longitudinal section of the blowing device in Figure 1.

[0052] Figure 5 is a structural schematic diagram of the first limiting component in Figure 1.

[0053] Figure 6 is another structural schematic diagram of the first limiting component in Figure 1.

[0054] Figure 7 is a schematic diagram of the main shell structure in Figure 1.

[0055] Figure 8 is a schematic diagram of the structure of the first shell in Figure 1.

[0056] Figure 9 is a schematic diagram of the structure of the second shell in Figure 1.

[0057] Figure 10 is a schematic diagram of the structure of the third shell in Figure 1.

[0058] Figure 11 is a three-dimensional structural schematic diagram of another blower according to an embodiment of the present application.

[0059] Figure 12 is a schematic diagram of the exploded structure of the blowing device in Figure 11.

[0060] Figure 13 is a cross-sectional view of the blowing device in Figure 11.

[0061] Figure 14 is a schematic diagram of the structure of the first limiting component in Figure 11.

[0062] Figure 15 is a structural schematic diagram of the second limiting component in Figure 11.

[0063] Figure 16 is another structural schematic diagram of the second limiting member in Figure 11.

[0064] Figure 17 is a schematic diagram of the first sub-main shell structure in Figure 11.

[0065] Figure 18 is a schematic diagram of the structure of the second sub-main shell in Figure 11.

[0066] Figure 19 is a schematic diagram of the main shell structure in Figure 11.

[0067] Figure 20 is another structural schematic diagram of the main shell in Figure 11.

[0068] Figure 21 is a schematic diagram of the structure of the first shell in Figure 11.

[0069] Figure 22 is a schematic diagram of the structure of the second shell in Figure 11.

[0070] Figure 23 is a schematic diagram of the third shell in Figure 11.

[0071] Figure 24 is a schematic diagram of the partial explosion structure of the blowing device in Figure 11.

[0072] Figure 25 is a schematic diagram of the shell assembly in Figure 11.

[0073] Reference numerals: 1000, blowing device; 10, housing assembly; 11. Main housing; 111. First sub-main housing; 112. Second sub-main housing; 113. Air blowing part; 1131. First receiving space; 1132. First connecting part / ring groove; 1133. Second joining part; 1133a. First side part; 1133b. Second side part; 1134. Third snap-fit ​​part; 1135. First bending part; 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 groove; 115. Sixth snap-fit ​​part; 116. Seventh groove; 117. Eighth snap-fit ​​part; 118. Handhold part; 1181. Handhold groove; 1182. Fourth receiving space; 119. Stepped groove; 120. Third convex ring; 12. First housing; 121. First vent; 122. Fourth connecting part / abutment ring; 123. Second groove; 124. Third groove; 125. First arm; 126. Fifth locking part; 127. Receiving groove; 128. Magnetic component; 129. First locking block; 130. Through groove; 13. Second housing; 131. Fifth connecting part / first protruding ring; 132. Second vent; 133. Fifth groove; 134. Sixth groove; 135. Second arm; 136. Seventh locking part; 138. Second locking block; 14. Third housing; 141. Third vent; 20. Limiting structure; 21. Second receiving space; 211. First sub-receiving space; 212. Second sub-receiving space; 22. First limiting member; 221. First step; 222. First groove; 2221. First recess; 223. Second connecting part / first boss; 224. Third connecting part / abutment groove; 225. First joint; 226. Fourth snap-fit ​​part; 227. Opening; 227a. First opening; 227b. Second opening; 228. First slot; 229. Second slot; 230. Sixth connecting part / second protruding ring; 23. Second limiting member; 231. Second step; 232. Third step; 233. Protrusion; 234. First air outlet; 235. Second air outlet; 30. Air supply assembly; 31. Motor; 311. Housing; 3111. Third receiving space; 312. Rotating shaft; 32. Fan; 52. First cover; 53. Circuit board; 54. Cable; 55. Battery pack; 56. Drainage component; 56a. Pressurizing component; 56b. Dust removal component; 56c. Fan component; 561. Second boss; 57. Control button. Detailed Implementation

[0074] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0075] Air-blowing devices (such as portable fans) are typically used in situations where accelerated airflow is required. Handheld fans, for example, are small and easy to carry and use, making them popular in confined spaces, crowded environments, and places where movement is necessary.

[0076] Accordingly, when in use, the blower needs to be safe and produce relatively little noise.

[0077] However, in related technologies, there are safety and noise issues with the blower due to the instability of the motor installation. Taking a handheld fan as an example, in related technologies, there are cases where the motor installation is unstable. For example, the motor may move along the rotation axis of the shaft, and / or the rest of the motor, excluding the shaft, may rotate. This can affect the product's lifespan and result in poor safety and high noise levels.

[0078] To at least partially address the aforementioned problems in the related technologies, this application provides a blower. The blower provided in the embodiments of this application will be described below with reference to Figures 1 to 25.

[0079] It should be understood that there are many ways to implement this application, and it should not be construed as being limited to the embodiments described herein. The embodiments described herein are only for a more thorough and clear understanding of this application.

[0080] Exemplary blower

[0081] Referring to Figures 1, 2, 3, 11, 12, and 13, embodiments of this application provide a blower device 1000. The blower device 1000 includes a housing assembly 10, a limiting structure 20, and an air delivery assembly 30. The housing assembly 10 has a first receiving space 1131. The limiting structure 20 is disposed within the first receiving space 1131 and has a second receiving space 21. The air delivery assembly 30 is used to generate a first airflow and includes a motor 31 and a fan 32, the fan 32 being driveably connected to the motor 31. The air delivery assembly 30 is located within the first receiving space 1131 and is at least partially disposed within the second receiving space 21. At least in the first airflow direction, the limiting structure 20 restricts the movement of a portion of the air delivery assembly 30, for example, restricting the movement of a fixed portion of the air delivery assembly 30 (e.g., the housing 311 and the fixed portion of the motor 31). The fan 32 is disposed within the first receiving space 1131 and is rotatably connected to the motor 31.

[0082] It should be noted that, in this document, movement may include rotation and / or displacement in a certain direction. The first airflow direction in this document refers to the airflow direction generated when the air supply assembly 30 is operating. It can be understood that the first airflow direction refers to the direction along the axis of the motor 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 shaft, from the first housing 12 to the second housing 13.

[0083] For example, the motor 31 may include a housing 311, a shaft 312, and other structures. The shaft 312 may be rotatably connected to the fan 32, and in use, the rotation of the shaft 312 can drive the fan 32 to rotate, thereby accelerating airflow. Here, other structures of the motor 31 can refer to the conventional configuration of motors, and will not be described in detail here.

[0084] Exemplarily, the hair dryer 1000 may further include a circuit board 53, a battery pack 55, and a control button 57. The circuit board 53 can be electrically connected to the motor 31 via a cable 54. For example, the first limiting member 22 may have an opening 227 through which the cable 54 passes, connecting the circuit board 53 and the motor 31. In some examples, referring to FIG14, the opening 227 may include a first opening 227a and a second opening 227b, through which the cable can pass. The opening 227 also serves a ventilation function to dissipate heat during operation of the hair dryer 1000. The control button 57 can be communicatively connected to the circuit board 53. The battery pack 55 can be electrically connected to the motor 31 and the circuit board 53. In some embodiments, the control button 57 can also be communicatively connected to a separate circuit board. The specific connections and structures described herein can be found in conventional art and will not be elaborated further.

[0085] It should be noted that the type and number of control buttons can be set according to the needs of specific application scenarios, and this application does not limit this.

[0086] It should also be noted that the battery pack 55 can be rechargeable or disposable. Accordingly, the blower 1000 can be equipped with a charging port or a battery swapping structure.

[0087] According to the technical solution of this application, a limiting structure 20 is provided inside the housing assembly 10. The limiting structure 20 can cooperate with other structures of the blower 1000 to restrict the movement of the motor 31, at least in the first airflow direction. Thus, during operation, at least the movement of the motor 31 along the rotation axis of the shaft 312 along the first airflow direction can be prevented, improving the installation stability of the motor 31 and thereby increasing the service life and safety of the blower 1000. Furthermore, the air supply assembly 30 is disposed within the second receiving space 21 of the limiting structure 20, which can isolate the motor 31 from other components of the blower 1000 to a certain extent, and restrict the rotation of the non-rotating parts of the air supply assembly 30, reducing noise caused by the movement of the motor 31 and preventing collisions with other nearby components.

[0088] Referring to Figures 2, 3, and 13, the second accommodating space 21 may include a first sub-accommodating space 211, and the limiting structure 20 may include a first limiting member 22, which has the first sub-accommodating space 211. At least a portion of the air supply assembly 30 may be disposed within the first sub-accommodating space 211. Referring to Figures 5 and 14, a first step 221 is provided on the first side of the first limiting member 22, and in the first airflow direction, the first step 221 abuts against the end of the air supply assembly 30 where the fan 32 is not disposed.

[0089] In this way, the end of the air supply assembly 30 without the fan 32 abuts against the first step 221. With the help of other structures, the motor 31 can be prevented from moving along the first airflow direction. At the same time, at least part of the air supply assembly 30 is located in the first sub-accommodation space 211. The first limiting member 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 operating noise of the blower 1000, and thus improving its safety and comfort.

[0090] Referring to Figures 2 to 5, the air supply assembly 30 may further include a housing 311. The housing 311 has a third receiving space 3111, within which at least a portion of the fan 32 is disposed. The housing 311 is disposed within a first sub-receiving space 211, and one end of the housing 311 abuts against the first step 221.

[0091] In this way, the outer casing 311 can guide the first airflow, ensuring that the first airflow can be blown out in a certain direction and speed. This improves the efficiency and performance of the blower 1000. Furthermore, the air outlet area of ​​the outer casing 311 remains constant during the rotation of the fan 32. This allows the airflow to be more concentrated and stable, providing a more comfortable and focused cooling effect to the user. In addition, the outer casing 311 can also absorb the vibration of the fan 32 and the motor 31, reducing wind noise and making the fan 32 quieter during operation.

[0092] Here, the structure of the outer casing 311 and its air guiding arrangement can refer to the conventional settings in this field, and will not be described in detail here.

[0093] Referring again to Figures 2 through 5, in some embodiments, the air supply assembly 30 is disposed within the first sub-accommodating space 211, that is, the fan 32 and the motor 31 are disposed within the first sub-accommodating space 211. The inner circumferential surface of the first limiting member 22 may be provided with at least one first groove 222, which increases the friction between the housing 311 and the first limiting member 22. When the outer circumferential wall of the housing 311 abuts against the at least one first groove 222, the friction between them can be increased, thereby preventing the housing 311 from rotating.

[0094] The inner circumferential surface of the first limiting member 22 is provided with a first groove 222. When the outer shell 311 abuts against the first groove 222, the friction between the outer shell 311 and the inner circumferential surface of the first limiting member 22 can be increased, further restricting the rotation of the outer shell 311, thereby restricting the rotation of the non-rotating part of the motor 31, improving the stability of the motor 31, thereby improving the stability and safety of the blower 1000 and reducing operating noise.

[0095] Referring to Figure 5, at least one first groove 222 may include four first grooves 222, which may be evenly distributed on the inner circumferential surface of the first limiting member 22. In this way, when the outer shell 311 abuts against the first limiting member 22, the outer shell 311 abuts against the first grooves 222 to achieve stable and uniform flow guidance.

[0096] Each first groove 222 may include a plurality of first recesses 2221. The first recesses 2221 may extend circumferentially along the first limiting member 22, thereby maximizing the friction between the housing 311 and the first limiting member 22 and further better restricting the rotation of the housing 311.

[0097] It is understandable that the first groove 222 can also be set to other numbers, such as 2, 3, 6 or 8, etc. In addition, the first groove 2221 can also extend in other directions.

[0098] Referring to Figures 7 and 8, the housing assembly 10 may include a main housing 11. At least one end of the main housing 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, with the first connecting portion 1132 connecting to the second connecting portion 223. The main housing 11 may include a first sub-main housing 111 and a second sub-main housing 112. For example, the main housing 11 may include a first sub-main housing 111 and a second main housing 112 substantially separated by a mid-section of the main housing 11. The first sub-main housing 111 and the second sub-main housing 112 are connected (e.g., by snap-fit, riveting, and screw connection, or one or more of these) to form the main housing 11. The main housing 11 consists of two parts, facilitating the installation of other structures disposed within the main housing 11.

[0099] Referring to Figures 5 to 7, the first connecting portion 1132 can be an annular groove 1132, and the second connecting portion 223 can be a first boss 223, which is accommodated in the annular groove. In an alternative example, the first connecting portion 1132 can be a first boss, and correspondingly, the second connecting portion 223 can be an annular groove.

[0100] Referring again to Figures 5 to 7, the main housing 11 has an air blowing section 113. For example, the air blowing section 113 is formed by connecting the top of the first sub-main housing 111 and the second sub-main housing 112. The air blowing section 113 has a first receiving space 1131. The two ends of the air blowing section 113 may be respectively provided with a first connecting portion 1132, and the two ends of the first limiting member 22 may be respectively provided with a second connecting portion 223, with the first connecting portion 1132 connecting the second connecting portion 223.

[0101] Referring to Figures 3 to 8, the housing assembly 10 may further include a first housing 12, which has at least one first vent 121. The first housing 12 can be connected to the first end of the air blowing section 113. A third connecting portion 224 is provided on the inner peripheral surface of the first limiting member 22 facing the end of the first housing 12, and a fourth connecting portion 122 is provided on the side of the first housing 12 facing the first limiting member 22. The third connecting portion 224 is connected to the fourth connecting portion 122. For example, the third connecting portion 224 is an abutment groove 224, and the fourth connecting portion 122 is an abutment ring 122; or, the third connecting portion 224 is an abutment ring, and the fourth connecting portion 122 is an abutment groove, which abut against each other. Exemplarily, the first housing 12 may have multiple first vents 121 (e.g., eight first vents 121) to facilitate increasing the air volume. The multiple first vents 121 may be evenly distributed on the first housing 12 to facilitate uniform air discharge.

[0102] Referring to Figures 5 and 8, in some examples, a first locking block 129 is provided on the outer periphery of the abutment ring 122, and a first locking groove 228 is provided on the inner periphery of the side of the first limiting member 22 that is connected to the first housing 12. The first locking block 129 engages with the first locking groove 228, further improving the stability of the connection.

[0103] Referring back to Figure 2, the first housing 12 and the first limiting member 22 can be connected together by fasteners (e.g., screws) to improve the reliability of the connection. Of course, the first housing 12 and the first limiting member 22 can also be connected together by riveting or welding.

[0104] Referring to Figures 3 and 8, in some embodiments, the first housing 12 may have a receiving groove 127 on the side facing the first limiting member 22, and a magnetic member 128 may be disposed in the receiving groove 127. This allows external components to be connected and fixed via the magnetic member 128. For example, a flow guide 56 (which may be a pressurizing member 56a, a dust removal member 56b, or a fan member 56c) can be connected via the magnetic member 128 to guide airflow in a specific manner. The pressurizing member 56a can blow air out at a certain pressure, the dust removal member 56b can concentrate the airflow for dust removal, and the fan member 56c can blow air out with a certain area and direction. In this case, the flow guide 56 may be magnetic or have a magnetic portion.

[0105] Referring to Figures 3, 8, and 9, the housing assembly 10 may further include a second housing 13, which may be connected to the second end of the air blowing section 113. A fifth connecting portion 131 is provided on the side of the second housing 13 facing the first limiting member 22. The fifth connecting portion 131 may be a first protruding ring 131, which may extend into the first sub-accommodating space 211 and abut against a sixth connecting portion 230 (which may be a second protruding ring 230) provided on the other end of the outer shell 311 and the inner peripheral wall of the first limiting member 22, to restrict the movement of the outer shell 311 in the first airflow direction together with the first limiting member 22. The second housing 13 has at least one second vent 132.

[0106] Referring to Figures 6 and 9, a second locking block 138 is provided on the outer periphery of the first protruding ring 131, and a second locking groove 229 is provided on the inner periphery of the first limiting member 22 corresponding to the second housing 13. The second locking block 138 is engaged with the second locking groove 229 to improve the stability of the connection.

[0107] Referring back to Figure 2, the second housing 13 and the limiting structure 20 can be connected together by fasteners (e.g., screws) to improve the reliability of the connection. Of course, the second housing 13 and the limiting structure 20 can also be connected together by riveting or welding.

[0108] Referring to Figures 2, 4, 7, and 10, the housing assembly 10 may further include a third housing 14. The main housing 11 may also include a handle 118, for example, formed by connecting the bottom of a first sub-main housing 111 and a second sub-main housing 112, and the handle 118 communicating with the air blowing section 113. The third housing 14 may be connected to the bottom of the handle 118 (e.g., by snap-fit, riveting, or screwing), and the handle 118 has a fourth receiving space 1182. The air blowing device 1000 also includes a battery pack 55, which is disposed in the fourth receiving space 1182 and electrically connected to the motor 31. The third housing 14 may have at least one third vent 141 to facilitate ventilation and heat dissipation for the battery pack 55, etc. In one example, the third housing 14 may have multiple third vents 141 to improve ventilation and heat dissipation. Multiple third vents 141 may be evenly distributed within the third housing 14 to improve the uniformity of ventilation and heat dissipation.

[0109] Referring to Figures 2 and 7, the blower device 1000 may further include a first cover 52, and the handle 118 is provided with a handle groove 1181, with the first cover 52 disposed at the handle groove 1181. In this way, the control button 57 can be disposed at the handle groove 1181 and exposed from the first cover 52, which makes the overall structure of the blower device 1000 more compact and aesthetically pleasing.

[0110] Referring to Figures 11 to 13, in some alternative embodiments, a portion of the air supply assembly 30 is disposed within the first sub-accommodation space 211, and one end of the air supply assembly 30 having a fan 32 abuts against the housing assembly 10.

[0111] Referring to Figures 11 to 15, in some embodiments, the limiting structure 20 of the alternative embodiments described above may further include a second limiting member 23. At least a portion of the second limiting member 23 may be disposed within the first sub-accommodating space 211, for example, a portion of the second limiting member 23 may be disposed within the first sub-accommodating space 211. A first end of the second limiting member 23 may abut against the first step 221, and a second end of the second limiting member 23 may abut against the housing assembly 10. The second accommodating space 21 may further include a second sub-accommodating space 212, with the second limiting member 23 having the second sub-accommodating space 212. At least a portion of the air supply assembly 30 may be disposed within the second sub-accommodating space 212.

[0112] Referring to Figures 13, 15, and 16, the motor 31 may include a housing 311. The housing 311 has a third receiving space 3111, within which at least a portion of the fan 32 is disposed. The housing 311 is disposed within a second sub-receiving space 212. The outer peripheral surface of the housing 311 may abut against the inner peripheral surface of the second limiting member 23. A second step 231 and a third step 232 may be provided on the inner peripheral surface of the second limiting member 23. Both ends of the housing 311 may abut against the second step 231 and the third step 232, respectively.

[0113] In this way, the second limiting member 23 can prevent the housing 311 from moving along the rotation axis of the motor 31's shaft 312 and limit the rotation of the housing 311. Furthermore, it can limit the movement of the non-rotating parts of the motor 31.

[0114] Referring again to Figures 15 and 16, the outer peripheral surface of the second limiting member 23 may be provided with at least one protrusion 233. For example, the at least one protrusion 233 may be multiple protrusions 233, which may be evenly distributed on the outer peripheral surface of the second limiting member 23. The multiple protrusions 233 may abut against the housing assembly 10 and / or the first limiting member 22. The protrusions 233 may be hemispherical.

[0115] 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. Furthermore, the rotation of the housing 311 can be further restricted, thus further restricting the movement of the non-rotating parts of the motor 31. In addition, the protrusions 233 are evenly distributed on the outer peripheral surface of the second limiting member 23, which allows for a uniform distribution of friction.

[0116] It should be noted that the bump 233 can also be set to other shapes, such as ellipsoid, cone or square.

[0117] The second limiting member 23 can be made of rubber. In this way, while limiting the movement of the housing 311 and the movement of the non-rotating part of the motor 31, it is flexible, can absorb vibration, and isolate and absorb noise to a certain extent, further improving the operational stability and safety of the blower 1000.

[0118] Referring to Figures 15 and 16, a first air vent 234 can be provided at the first end of the second limiting member 23. The cross-sectional area of ​​the first air vent 234 near the first step 221 is larger than the cross-sectional area of ​​the first air vent 234 near the outer casing 311. For example, the first air vent 234 can be tapered along the axial direction of the second limiting member 23, and the cross-sectional area of ​​the first air vent 234 gradually increases along the direction near the first end of the second limiting member 23. In this way, when the first air vent 234 is an air inlet, the air inlet gradually decreases in size, making the thickness of this area relatively thin, which facilitates sealing with the casing assembly 10, prevents air leakage, and can also play a role in guiding and concentrating airflow to gradually increase the air velocity and reduce noise.

[0119] The second end of the second limiting member 23 may be provided with a second air vent 235. The cross-sectional area of ​​the second air vent 235 near the second end of the second limiting member 23 where it abuts against the housing assembly 10 is larger than the cross-sectional area of ​​the second air vent 235 near the outer shell 311. For example, the second air vent 235 may be tapered along the axial direction of the second limiting member 23, and the cross-sectional area of ​​the second air vent 235 gradually increases along the direction near the second end of the second limiting member 23. In this way, when the second air vent 235 is an air outlet, the air outlet gradually increases in size, making the thickness of this area relatively thin, which facilitates abutment and sealing with the housing assembly 10, prevents air leakage, and can also play a role in guiding airflow and ensuring air distribution, while reducing noise.

[0120] It is understandable that the first air vent 234 and the second air vent 235 can also be in other shapes, and are not limited to a cone shape.

[0121] It should be noted that, in this application, the cross-sectional area is expressed as the area of ​​the cross section perpendicular to the direction of the first airflow.

[0122] Referring to Figures 11, 17 to 19, the housing assembly 10 may include a main housing 11. The main housing 11 may include a first sub-main housing 111 and a second sub-main housing 112, which are connected (e.g., one or more of snap-fit, riveting, and screw connection) to form the main housing 11.

[0123] The main housing 11 has an air blowing section 113. For example, the air blowing section 113 is formed by connecting the top of the first sub-main housing 111 and the second sub-main housing 112. The air blowing section 113 has a first receiving space 1131. One end of the first limiting member 22 may be provided with a first connecting portion 225 (e.g., a boss), and the inner peripheral surface of the air blowing section 113 may be provided with a second connecting portion 1133. For example, the second connecting portion 1133 is located on both the first sub-main housing 111 and the second sub-main housing 112. The second connecting portion 1133 abuts against the first connecting portion 225 to restrict the movement of the first limiting member 22.

[0124] Referring to Figures 13, 17, and 18, the second connecting portion 1133 may include a first side portion 1133a (e.g., a first baffle) and a second side portion 1133b (e.g., a first baffle). The first side portion 1133a may restrict the movement of the first limiting member 22 in the first airflow direction and / or its opposite direction, and the second side portion 1133b may restrict the rotation of the first limiting member 22.

[0125] This prevents the first limiting member 22 from moving, thereby ensuring the installation stability of the motor 31.

[0126] Referring to Figures 13, 14, 17 to 20, a third engaging portion 1134 (e.g., a stop groove, multiple stop bars, or stop blocks) may be provided on the inner circumferential surface of the air blowing part 113, and a fourth engaging portion 226 (e.g., a protrusion) may be correspondingly provided on the outer circumferential surface of the first limiting member 22, with the third engaging portion 1134 engaging with the fourth engaging portion 226. Of course, the third engaging portion 1134 may also be a protrusion, and correspondingly, the fourth engaging portion 226 may be a stop groove, etc.

[0127] Referring to Figure 13, a third protruding ring 120 may be provided on the inner circumferential surface of the air blowing part 113, and the other end of the first limiting member 22 may abut against the third protruding ring 120.

[0128] In this way, the rotation and displacement of the first limiting member 22 can be further restricted by the cooperation between the third locking part 1134 and the fourth locking part 226.

[0129] Referring to Figures 19 to 21, the housing assembly 10 may further include a first housing 12, which may have at least one first vent 121 for air delivery. The first housing 12 may be connected to a first end of the air blowing section 113. A second groove 123 may be provided at one end of the first housing 12, and a first bend 1135 may be provided at the first end of the air blowing section 113. The second groove 123 accommodates the first bend 1135. In this way, the connection between the first housing 12 and the main housing 11 is achieved through their own structures, avoiding the use of too many fasteners, facilitating installation, and improving the overall structural integrity of the air blowing device 1000.

[0130] Referring to Figures 17 to 21, the first bending portion 1135 may include a first sub-bending portion 1135a and a second sub-bending portion 1135b. The portion of the first sub-main housing 111 that forms the first end of the air blowing portion 113 may be provided with the first sub-bending portion 1135a. The portion of the second sub-main housing 112 that forms the first end of the air blowing portion 113 may be provided with the second sub-bending portion 1135b. The second groove 123 accommodates the first sub-bending portion 1135a and the second sub-bending portion 1135b.

[0131] The inner wall (e.g., bottom wall or side wall) of the second groove 123 may be provided with at least one third groove 124. For example, the inner wall of the second groove 123 may be provided with two third grooves 124, which are evenly distributed on the inner wall of the second groove 123. The third groove 124 may 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 may have an angle of 0° to 10° with the rotation axis of the rotating shaft 312. The side of the first bent portion 1135 away from the rotation axis of the motor 31 may be provided with at least one fourth groove 114. During installation, the first arm 125 can slide through the fourth groove 114 to a first predetermined position and then rotate to a second predetermined position.

[0132] In this way, the first housing 12 and the main housing 11 can be stably connected through the cooperation of the first arm 125 and the fourth groove 114, reducing the use of fasteners, simplifying the installation process and saving costs. Moreover, during installation, the fourth groove 114 can guide the first wall to be installed into place step by step.

[0133] Understandably, the third groove 124 can also be set to other quantities, such as 1, 3 or 4, etc.

[0134] Referring to Figures 17 to 21, a fifth engaging portion 126 (e.g., a groove) can be provided on the side of the first arm 125 near the motor 31, and a sixth engaging portion 115 (e.g., a protrusion) can be provided within the fourth groove 114. The fifth engaging portion 126 can engage with the sixth engaging portion 115. In this way, the connection reliability between the first housing 12 and the main housing 11 can be further improved through the cooperation of the fifth engaging portion 126 and the sixth engaging portion 115. Here, the fifth engaging portion 126 can also be a protrusion, and correspondingly, the sixth engaging portion 115 can be a groove.

[0135] Referring to Figures 21, 24, and 25, the first housing 12 may be provided with a through groove 130, and the first end of the air blowing part 113 may be provided with a stepped groove 119. The air blowing device may also include a guide member 56, on which a second boss 561 is provided. 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 rotate to engage with the second part of the stepped groove 119 to install and fix the guide member 56.

[0136] Referring to Figures 19, 20, and 22, the housing assembly 10 may further include a second housing 13, to which a second end of the air blowing section 113 may be connected. The second housing 13 has at least one second vent 132 for facilitating air intake. In one example, multiple second vents 132 are provided on the second housing to ensure sufficient air intake. The multiple second vents 132 may be evenly distributed on the second housing 13 for uniform air intake.

[0137] Referring to Figures 17 to 20 and 22, the second housing 13 may be provided with a fifth groove 133, and the second end of the air blowing part 113 may be provided with a second bent part 1136, with the fifth groove 133 accommodating the second bent part 1136.

[0138] Referring again to Figures 17 to 20 and 22, the second bending portion 1136 may include a third sub-bending portion 1136a and a fourth sub-bending portion 1136b. The portion of the first sub-main housing 111 forming the second end of the air blowing portion 113 may be provided with the third sub-bending portion 1136a, and the portion of the second sub-main housing 112 forming the second end of the air blowing portion 113 may be provided with the fourth sub-bending portion 1136b. The fifth groove 133 accommodates the first sub-bending portion 1135a and the second sub-bending portion 1135b.

[0139] Referring again to Figures 17 to 20 and 22, the inner wall (e.g., bottom wall or side wall) of the fifth groove 133 may be provided with at least one sixth groove 134. For example, the inner wall of the fifth groove 133 may be provided with two sixth grooves 134, which are evenly distributed on the inner wall of the fifth groove 133. The sixth groove 134 may be provided with a second arm 135. The second arm 135 is perpendicular or substantially perpendicular to the rotation axis of the shaft 312 of the motor 31, for example, the second arm 135 may have an angle of 0° to 10° with the rotation axis of the shaft 312. At least one seventh groove 116 may be provided on the side of the second bend 1136 away from the rotation axis of the motor 31. During installation, the second arm 135 slides through the seventh groove 116 to a third predetermined position and then rotates to a fourth predetermined position.

[0140] In this way, the second housing 13 and the main housing 11 can be stably connected through the cooperation of the second arm 135 and the seventh groove 116, reducing the use of fasteners, simplifying the installation process and saving costs. Moreover, during installation, the seventh groove 116 can guide the second wall 135 to be gradually installed into place.

[0141] Understandably, the sixth groove 134 can also be set to other quantities, such as 1, 3 or 4, etc.

[0142] Referring again to Figures 17 to 20 and 22, a seventh engaging portion 136 (e.g., a groove) may be provided on the side of the second arm 135 near the motor 31. An eighth engaging portion 117 (e.g., a protrusion) may be provided within the seventh groove 116. The seventh engaging portion 136 can engage with the eighth engaging portion 117. In this way, the connection reliability between the second housing 13 and the main housing 11 can be further improved through the cooperation of the seventh engaging portion 136 and the eighth engaging portion 117.

[0143] Here, the seventh locking part 136 can also be a protrusion, and correspondingly, the eighth locking part 117 is a groove.

[0144] Referring to Figures 17 to 19, 20 and 23, the housing assembly 10 may further include a third housing 14, and the main housing 11 may also have a handle 118. The first sub-main housing 111 is connected to the bottom of the second sub-main housing 112 to form the handle 118, which communicates with the air blowing part 113. The third housing 14 is connected to the handle 118 (e.g., snap-fit, riveted or welded), and the handle 118 may have a fourth receiving space 1182. The air blowing device 1000 may also include a battery pack 55, which is disposed in the fourth receiving space 1182 and electrically connected to the motor 31. The third housing 14 has a third vent 141 to facilitate heat dissipation for the battery pack 55, thereby improving the safety and service life of the air blowing device 1000. In one example, the third housing 14 has multiple third vents 141 to improve ventilation and heat dissipation. The multiple third vents 141 may be evenly distributed on the third housing 14 for uniform ventilation and heat dissipation.

[0145] Referring back to Figure 12, the blower device 1000 may also include a first cover 52, and a handle 118 is provided with a handle groove 1181, with the first cover 52 disposed at the handle groove 1181. This allows control buttons 57 and the like to be placed at the handle groove 1181, resulting in a compact structure and space-saving design.

[0146] Below, in order to gain a deeper understanding of the structure and working principle of the blower 1000 provided in the embodiments of this application, some possible implementations of the blower 1000 of this application will be described in further detail with reference to Figures 1 to 25.

[0147] First, referring to Figures 1 to 10, in one possible implementation, the blower 1000 may include a housing assembly 10, a limiting structure 20, and an air supply assembly 30.

[0148] The housing assembly 10 may include a main housing 11, a first housing 12, and a second housing 13. The main housing 11 may include a first sub-main housing 111 and a second sub-main housing 112, which are substantially separated by a longitudinal section at the middle of the main housing 11. After the first sub-main housing 111 and the second sub-main housing 112 are engaged with each other (the specific engagement structure is a conventional arrangement in the art and will not be described in detail here), an air blowing section 113 and a handheld section 118 are formed that are in communication with each other. The air blowing section 113 has a first receiving space 1131. The handheld section 118 has a fourth receiving space 1182, in which the battery pack 55 and circuit board 53 of the blower device 1000 are disposed. The handheld section 118 is provided with a handheld groove 1181, and a control button 57 may be disposed in the handheld groove 1181. The first cover 52 of the blower device 1000 is disposed in the handheld groove 1181, and the control button 57 is partially exposed above the first cover 52. Circuit board 53 is electrically connected to motor 31 via cable 54, and control button 57 is communicatively connected to circuit board 53. Battery pack 55 is electrically connected to motor 31 and circuit board 53.

[0149] The first housing 12 and the second housing 13 are respectively connected to both ends of the air blowing part 113, and the third housing 14 is snapped into the bottom end of the handheld part 118. The first housing 12 is provided with a plurality of first vents 121 for air outlet, the second housing 13 is provided with a plurality of second vents 132 for air inlet, and the third housing 14 is provided with a plurality of third vents 141.

[0150] The limiting structure 20 includes a first limiting member 22, which is disposed within a first receiving space 1131 and has a first sub-receiving space 211. The air supply assembly 30 includes a motor 31 and a fan 32. The motor 31 includes a housing 311, which is disposed within the first sub-receiving space 211. The first limiting member 22 has an opening 227 for the passage of the cable 54 and for ventilation. The housing 311 has a third receiving space 3111, and at least a portion of the fan 32 is disposed within the third receiving space 3111. The fan 32 is drive-connected to the shaft 312 of the motor 31.

[0151] A first step 221 is provided on the first side of the first limiting member 22, and the first step 221 abuts against the outer casing 311 in the direction of the rotation axis of the rotating shaft 312 of the motor 31. Four first grooves 222 are provided on the inner circumferential surface of the first limiting member 22, and the four first grooves 222 are evenly distributed on the inner circumferential surface of the first limiting member 22. Each first groove 222 includes multiple first recesses 2221. The first recesses 2221 extend circumferentially along the first limiting member 22. The first recesses 2221 are used to increase the friction between the outer casing 311 and the first limiting member 22. When the outer casing 311 abuts against the first grooves 222, the friction between them can be increased, thereby preventing the outer casing 311 from rotating.

[0152] The first limiting member 22 is provided with an opening 227, through which the cable 54 passes and connects between the circuit board 53 and the motor 31 of the blower 1000.

[0153] The first limiting member 22 has a first boss 223 at both ends, and the air blowing part 113 has annular grooves 1132 on both sides. The annular grooves 1132 abut against the first boss 223 to restrict the movement of the first limiting member 22.

[0154] The first housing 12 is provided with an abutment ring 122 on the side facing the first limiting member 22, and an abutment groove 224 is provided on the inner circumferential surface of the first limiting member 22 facing the end of the first housing 12. The abutment groove 224 abuts against the abutment ring 122.

[0155] A first locking block 129 is provided on the outer periphery of the abutment ring 122, and a first locking groove 228 is provided on the inner periphery of the side of the first limiting member 22 connected to the first housing 12, and the first locking block 129 is engaged with the first locking groove 228.

[0156] The second housing 13 is provided with a first protruding ring 131 on the side facing the first limiting member 22. The first protruding ring 131 extends into the first sub-accommodating space 211 and abuts against the other end of the housing 311 and the second protruding ring 230 provided on the inner peripheral wall of the first limiting member 22, so as to restrict the movement of the housing 311 in the opposite direction of the first airflow together with the first limiting member 22.

[0157] A second locking block 138 is provided on the outer periphery of the first protruding ring 131, and a second locking groove 229 is provided on the inner periphery of the first limiting member 22 corresponding to the second housing 13. The second locking block 138 is engaged with the second locking groove 229.

[0158] The first housing 12 and the second housing 13 are respectively connected to the first limiting member 22 by fasteners. The first housing 12 is provided with a receiving groove 127 on the side facing the first limiting member 22, and a magnetic member 128 is provided in the receiving groove 127 for connecting the drain member 56.

[0159] Referring to Figures 11 to 25, in another possible implementation, the blower 1000 includes a housing assembly 10, a limiting structure 20, and an air supply assembly 30.

[0160] The housing assembly 10 includes a main housing 11, a first housing 12, and a second housing 13. The main housing 11 includes a first sub-main housing 111 and a second sub-main housing 112, which are substantially separated by a longitudinal section at the middle of the main housing 11. After the first sub-main housing 111 and the second sub-main housing 112 are engaged with each other (the specific engagement structure is a conventional arrangement in the art and will not be described in detail here), an air blowing section 113 and a handheld section 118 are formed that are in communication with each other.

[0161] The blowing part 113 has a first receiving space 1131. The handheld part 118 has a fourth receiving space 1182, in which the circuit board 53 and battery pack 55 of the blower 1000 are disposed. The handheld part 118 has a handhold groove 1181, and a control button 57 is disposed in the handhold groove 1181. The first cover 52 of the blower 1000 is disposed in the handhold groove 1181, and the control button 57 is partially exposed above the first cover 52. The circuit board 53 is electrically connected to the motor 31 via a cable 54, and the control button 57 is communicatively connected to the circuit board 53. The battery pack 55 is electrically connected to the motor 31 and the circuit board 53.

[0162] The first housing 12 and the second housing 13 are respectively connected to both ends of the air blowing part 113, and the third housing 14 is snapped into the bottom end of the handheld part 118. The first housing 12 is provided with a plurality of first vents 121 for air outlet, the second housing 13 is provided with a plurality of second vents 132 for air inlet, and the third housing 14 is provided with a plurality of third vents 141.

[0163] The limiting structure 20 includes a first limiting member 22. The first limiting member 22 is disposed within a first receiving space 1131 and has a first sub-receiving space 211. The air supply assembly 30 includes a motor 31 and a fan 32. The motor 31 includes a housing 311. The end of the air supply assembly 30 without the fan 32 is disposed in the first sub-receiving space 211. The housing 311 has a third receiving space 3111, and at least part of the fan 32 is disposed in the third receiving space 3111. The fan 32 is drively connected to the shaft 312 of the motor 31. The first limiting member 22 is provided with an opening 227, which includes a first opening 227a and a second opening 227b. A cable 54 passes through the opening 227 and is connected between the circuit board 53 of the blower device 1000 and the motor 31.

[0164] A stop groove is provided on the inner circumferential surface of the air blowing part 113, and a corresponding protrusion is provided on the outer circumferential surface of the first limiting member 22. The protrusion engages in the stop groove to restrict the movement of the first limiting member 22. A boss is provided at one end of the first limiting member 22, and a first baffle and a second baffle are provided on the inner circumferential surface of the air blowing part 113. The boss abuts against the first baffle and the second baffle. The second connecting part 1133 abuts against the first connecting part 225 to restrict the movement of the first limiting member 22. A third protruding ring 120 is provided on the inner circumferential surface of the air blowing part 113, and the other end of the first limiting member 22 abuts against the third protruding ring 120.

[0165] The first limiting member 22 has a first step 221 on its first side, which abuts against one end of the outer casing 311 in the first airflow direction. The other end of the outer casing 311 abuts against a limiting groove provided on the inner wall of the air blowing part 113. The outer peripheral surface of the outer casing 311 abuts against a portion of the inner peripheral surface of the air blowing part 113.

[0166] A second groove 123 is provided at one end of the first housing 12, and a first bending portion 1135 may be provided at the first end of the air blowing portion 113. The second groove 123 accommodates the first bending portion 1135. The first bending portion 1135 includes a first sub-bending portion 1135a and a second sub-bending portion 1135b. The portion of the first sub-main housing 111 that forms the first end of the air blowing portion 113 is provided with the first sub-bending portion 1135a, and the portion of the second sub-main housing 112 that forms the first end of the air blowing portion 113 is provided with the second sub-bending portion 1135b. The second groove 123 accommodates the first sub-bending portion 1135a and the second sub-bending portion 1135b.

[0167] 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. A first arm 125 is provided in each third groove 124. The first arm 125 is perpendicular or substantially perpendicular to the rotation axis of the motor 31. At least one fourth groove 114 is provided on the side of the first bent portion 1135 away from the rotation axis of the motor 31. During installation, the first arm 125 can slide through the fourth groove 114 to a first predetermined position and then rotate to a second predetermined position.

[0168] The first arm 125 has a groove on the side near the motor 31, and the fourth groove 114 has a protrusion, which engages with the groove.

[0169] The second housing 13 is provided with a fifth groove 133, and the second end of the air blowing part 113 is provided with a second bent part 1136. The fifth groove 133 accommodates the second bent part 1136. The second bent part 1136 includes a third sub-bent bent part 1136a and a fourth sub-bent bent part 1136b. The portion of the first sub-main housing 111 forming the second end of the air blowing part 113 is provided with the third sub-bent bent part 1136a, and the portion of the second sub-main housing 112 forming the second end of the air blowing part 113 is provided with the fourth sub-bent bent part 1136b. The fifth groove 133 accommodates the first sub-bent bent part 1135a and the second sub-bent bent part 1135b.

[0170] 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. A second arm 135 is provided in each of the sixth grooves 134. The second arm 135 is perpendicular or substantially perpendicular to the rotation axis of the motor 31's shaft 312, that is, the second arm can have an angle of 0° to 10° with the rotation axis of the shaft 312. A seventh groove 116 is provided on the side of the second bent portion 1136 away from the rotation axis of the motor 31. During installation, the second arm 135 slides through the seventh groove 116 to a third predetermined position, and then rotates to a fourth predetermined position.

[0171] The second arm 135 has a groove on the side near the motor 31, and a protrusion is provided in the seventh groove 116, with the groove and the protrusion engaging.

[0172] The first housing has a through groove 130, and the first end of the air blowing part 113 has a stepped groove 119. The air blowing device also includes a guide member 56, which has 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 rotate to engage with the second part of the stepped groove 119. The guide member 56 can concentrate the air flowing from the air blowing device 1000 and blow it out in a certain direction.

[0173] Furthermore, the limiting structure 20 also includes a second limiting member 23. A portion of the second limiting member 23 is disposed within the first sub-accommodating space 211. The second limiting member 23 has a second sub-accommodating space 212, in which at least a portion of the air supply assembly 30 can be disposed within the second sub-accommodating space 212.

[0174] The inner circumferential surface of the second limiting member 23 is provided with a second step 231 and a third step 232. At this time, the outer shell 311 can be disposed within the second sub-accommodating space 212, the outer circumferential surface of the outer shell 311 can abut against the inner circumferential surface of the second limiting member 23, and both ends of the outer shell 311 can abut against the second step 231 and the third step 232 respectively. The first end of the second limiting member 23 can abut against the first step 221.

[0175] The outer peripheral surface of the second limiting member 23 is provided with a plurality of protrusions 233. The protrusions 233 are evenly distributed on the outer peripheral surface of the second limiting member 23 and abut against the housing assembly 10 and the first limiting member 22. The second limiting member 23 is made of rubber. A first air vent 234 is provided at the first end of the second limiting member 23. The first air vent 234 is tapered along the axial direction of the second limiting member 23, and its cross-sectional area gradually increases towards the first end of the second limiting member 23. A second air vent 235 is provided at the second end of the second limiting member 23. The second air vent 235 is tapered along the axial direction of the second limiting member 23, and its cross-sectional area gradually increases towards the second end of the second limiting member 23.

[0176] In this embodiment, the components of the blower 1000 are securely connected together through the connection points of the structure itself, without the need for additional fasteners, which facilitates installation and saves costs.

[0177] It should be noted that the construction of other aspects of the blower device 1000 can refer to the conventional construction in the field, and for the sake of brevity, this application will not elaborate on them.

[0178] It should be noted that the blowing device in this application can be a portable fan, such as a handheld fan.

[0179] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0180] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0181] It should be understood that the term "comprising" and its variations as used in this application are open-ended, meaning "including but not limited to". The term "according to" means "at least in part according to". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least another embodiment".

[0182] It should be understood that although terms such as "first" or "second" may be used in this application to describe various elements (such as a first protrusion and a second protrusion), these elements are not defined by these terms, which are only used to distinguish one element from another.

[0183] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0184] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "abutment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; abutment can refer to direct abutment or indirect abutment through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0185] The scope of protection of this application is not limited to the above embodiments. Any variations or substitutions that can be conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A blower device, characterized in that, include: A housing assembly having a first receiving space; A limiting structure is provided within the first accommodating space and has a second accommodating space; An air supply assembly for generating a first airflow includes a motor and a fan, the fan being drivenly connected to the motor. The air supply assembly is located within a first accommodating space and is at least partially disposed within a second accommodating space. At least in the first airflow direction, the limiting structure restricts the movement of part of the air supply assembly.

2. The blower device according to claim 1, characterized in that, The limiting structure includes a first limiting member, and the second accommodating space includes a first sub-accommodating space. The first limiting member has the first sub-accommodating space, and at least a portion of the air supply component is disposed within the first sub-accommodating space. A first step is provided on a first side of the first limiting member, and in the first airflow direction, the first step abuts against the end of the air supply component without a fan.

3. The blower device according to claim 2, characterized in that, The motor includes a housing having a third receiving space, at least a portion of the fan being disposed within the third receiving space, the housing being disposed within a first sub-receiving space, and one end of the housing abutting against the first step.

4. The blower device according to claim 3, characterized in that, 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 used to increase the friction between the outer shell and the first limiting member.

5. The blower device according to claim 4, characterized in that, The at least one first groove includes four first grooves, which are evenly distributed on the inner circumferential surface of the first limiting member.

6. The blower according to claim 4, characterized in that, The first groove includes a plurality of first grooves, which extend circumferentially along the inner peripheral surface of the first limiting member.

7. The blower according to any one of claims 3 to 6, characterized in that, The housing assembly includes a main housing, at least one end of which 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 being connected to the second connecting portion.

8. The blower according to claim 7, characterized in that, The first connecting part is an annular groove, and the second connecting part is a first boss, with the annular groove accommodating the first boss.

9. The blower according to claim 7 or 8, characterized in that, The main housing includes a first sub-main housing and a second sub-main housing, which are connected to form the main housing.

10. The blower according to any one of claims 7 to 9, characterized in that, The main housing has an air blowing section, the air blowing section having the first receiving space; the housing assembly further includes a first housing, the first housing having at least one first vent, the first housing being connected to a first end of the air blowing section; and The first limiting member has a third connecting part on the inner circumferential surface facing the first housing, and the first housing has a fourth connecting part on the side facing the first limiting member. The third connecting part is connected to the fourth connecting part.

11. The blower according to claim 10, characterized in that, The third connecting part is an abutting groove, and the fourth connecting part is an abutting ring, which abuts against the abutting groove.

12. The blower according to claim 11, characterized in that, A first locking block is provided on the outer periphery of the abutment ring, and a first locking groove is provided on the inner periphery of the side of the first limiting member that is connected to the first housing, and the first locking block engages with the first locking groove.

13. The blower according to any one of claims 10 to 12, characterized in that, The first housing has a receiving groove on the side facing the first limiting member, and a magnetic element is disposed in the receiving groove.

14. The blower according to any one of claims 10 to 13, characterized in that, The housing assembly further includes a second housing, which is connected to the second end of the air blowing part. The second housing has a fifth connecting part on the side facing the first limiting member. The fifth connecting part extends into the first sub-accommodating space and abuts against the other end of the outer shell and a sixth connecting part provided on the inner peripheral wall of the first limiting member. The second housing has at least one second vent.

15. The blower according to claim 14, characterized in that, The fifth connecting part is a first protruding ring, and the sixth connecting part is a second protruding ring. A second locking block is provided on the outer peripheral side of the first protruding ring, and a second locking groove is provided on the inner peripheral wall of the first limiting member corresponding to the second housing. The second locking block engages with the second locking groove.

16. The blower according to any one of claims 10 to 15, characterized in that, The housing assembly further includes a third housing, the main housing further includes a handheld part, the third housing is connected to the handheld part, the handheld part is in communication with the blowing part, the handheld part has a fourth receiving space, and the blowing device further includes a battery pack, the battery pack is disposed in the fourth receiving space and electrically connected to the motor.

17. The blower according to claim 16, characterized in that, The third housing has at least one third vent; and / or The blower also includes a first cover, and the handheld part is provided with a handheld groove, with the first cover disposed at the handheld groove.

18. The blower device according to claim 2, characterized in that, Part of the air supply component is disposed within the first sub-accommodating space, and one end of the air supply component with a fan abuts against the housing component.

19. The blower according to claim 18, characterized in that, The limiting structure further includes a second limiting member, at least a portion of which is disposed within the first sub-accommodating space. The first end of the second limiting member abuts against the first step. The second accommodating space further includes a second sub-accommodating space. The second limiting member has the second sub-accommodating space, and at least a portion of the air supply assembly is disposed within the second sub-accommodating space.

20. The blower according to claim 19, characterized in that, The motor includes a housing with a third receiving space, at least a portion of the fan is disposed within the third receiving space, the housing is disposed within a second sub-receiving space, the inner circumferential surface of the second limiting member is provided with a second step and a third step, both ends of the housing abut against the second step and the third step respectively, and the second end of the second limiting member abuts against the housing assembly.

21. The blower according to claim 19 or 20, characterized in that, The outer peripheral surface of the second limiting member is provided with at least one protrusion, the at least one protrusion abutting against the housing assembly and / or the first limiting member; and / or, The second limiting element is made of rubber.

22. The blower according to claim 20 or 21, characterized in that, The first end of the second limiting member is provided with a first air vent, and the cross-sectional area of ​​the first air vent near the first step is greater than the cross-sectional area of ​​the first air vent near the outer shell. and / or The second end of the second limiting member is provided with a second air vent, and the cross-sectional area of ​​the second air vent near the second end of the second limiting member where it abuts against the housing assembly is greater than the cross-sectional area of ​​the second air vent near the outer shell.

23. The blower according to any one of claims 19 to 22, characterized in that, The housing assembly includes a main housing, the main housing having an air blowing section having the first accommodating space, a first connecting portion being provided at one end of the first limiting member, and a second connecting portion being provided on the inner circumferential surface of the air blowing section, the second connecting portion abutting against the first connecting portion to restrict the movement of the first limiting member.

24. The blower according to claim 23, characterized in that, The second joint includes a first side and a second side, the first side restricting the movement of the first limiting member in the opposite direction of the first airflow, and the second side restricting the rotation of the first limiting member.

25. The blower according to claim 23 or 24, characterized in that, A third engaging portion is provided on the inner circumferential surface of the blowing part, and a fourth engaging portion is correspondingly provided on the outer circumferential surface of the first limiting member; the third engaging portion engages with the fourth engaging portion; and / or A third protruding ring is provided on the inner circumferential surface of the air blowing part, and the other end of the first limiting member abuts against the third protruding ring.

26. The blower according to any one of claims 23 to 25, characterized in that, The main housing includes a first sub-main housing and a second sub-main housing, which are connected to form the main housing. The top of the first sub-main housing and the second sub-main housing are connected to form the air blowing section.

27. The blower according to claim 26, characterized in that, The housing assembly further includes a first housing having at least one first vent, the first housing being connected to a first end of the air blowing part, the first housing being provided with a second groove, the first end of the air blowing part being provided with a first bend, and the second groove accommodating the first bend.

28. The blower according to claim 27, characterized in that, The first bending portion includes a first sub-bending portion and a second sub-bending portion. The first sub-main housing is provided with the first sub-bending portion, and the second sub-main housing is provided with the second sub-bending portion. The second groove accommodates the first sub-bending portion and the second sub-bending portion.

29. The blower according to claim 27 or 28, characterized in that, The inner wall of the second groove is provided with at least one third groove, and the third groove is provided with a first arm. The first arm is perpendicular or substantially perpendicular to the rotation axis of the motor. The side of the first bent portion away from the rotation axis of the motor is provided with at least one fourth groove. During installation, the first arm slides through the fourth groove to a first predetermined position and then rotates to a second predetermined position.

30. The blower according to claim 29, characterized in that, The first arm has a fifth locking part on the side near the motor, and the fourth groove has a sixth locking part, which engages with the fifth locking part.

31. The blower according to any one of claims 27 to 30, characterized in that, The first housing is provided with a through groove, the first end of the air blowing part is provided with a stepped groove, the air blowing device also includes a guide member, the guide member is provided with a second boss, during installation, the second boss passes through the first part of the through groove and the first part of the stepped groove in sequence and then rotates to engage with the second part of the stepped groove.

32. The blower according to any one of claims 27 to 31, characterized in that, The housing assembly further includes a second housing, the second end of which is connected to the second housing, and the second housing has at least one second vent.

33. The blower according to claim 32, characterized in that, The second housing is provided with a fifth groove, and the second end of the air blowing part is provided with a second bending part, and the fifth groove accommodates the second bending part.

34. The blower according to claim 33, characterized in that, The second bending portion includes a third sub-bending portion and a fourth sub-bending portion. The first sub-main housing is provided with the third sub-bending portion, and the second sub-main housing is provided with the fourth sub-bending portion. The fifth groove accommodates the third sub-bending portion and the fourth sub-bending portion.

35. The blower according to claim 34, characterized in that, The inner wall of the fifth groove is provided with at least one sixth groove, and the sixth groove is provided with a second arm. The second arm is perpendicular or substantially perpendicular to the rotation axis of the motor. The side of the second bent portion away from the rotation axis of the motor is provided with at least one seventh groove. During installation, the second arm slides through the seventh groove to the third predetermined position and then rotates to the fourth predetermined position.

36. The blower according to claim 35, characterized in that, The second arm has a seventh locking part on the side near the motor, and an eighth locking part is provided in the seventh groove, and the seventh locking part and the eighth locking part are locked together.

37. The blower according to any one of claims 26 to 36, characterized in that, The housing assembly further includes a third housing, and the main housing also has a handhold. The bottom of the first sub-main housing and the second sub-main housing are connected to form the handhold. The handhold is in communication with the blowing part. The third housing is connected to the handhold. The handhold has a fourth receiving space. The blower also includes a battery pack, which is disposed in the fourth receiving space and electrically connected to the motor.

38. The blower according to claim 37, characterized in that, The third housing has at least one third vent; and / or The blower also includes a first cover, and the handheld part is provided with a handheld groove, with the first cover disposed at the handheld groove.

39. The blower according to any one of claims 2 to 38, characterized in that, The first limiting member is provided with at least one opening, and the at least one opening is used for threading a cable.

40. The blower according to claim 39, characterized in that, The at least one opening includes a first opening and a second opening.

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