Fan

Abstract

The invention relates to a fan. The fan comprises a fan head part and a supporting part, the fan is provided with a rotating part which is fixedly connected with a fan head part; the fan is provided with a fixing piece, and the fixing piece is fixedly connected with the supporting part through a buckle structure. In the assembling process of the fan, the fixing piece and the supporting part are fixedly connected through the buckle structure, the assembling speed is high, and operation is easy.

Description

Technical Field

[0001] This invention relates to a fan. Background Technology

[0002] Improving the ease of product assembly is a key direction for product design optimization. Currently, there is still room for improvement in the ease of assembly for fans on the market. The left-right oscillation mechanism of a fan includes a rotating component, a fixed component, and a power source. The rotating component is fixedly connected to the fan head, and the fixed component is fixedly connected to the fan's support. The power source is typically a stepper motor, used to rotate the rotating component relative to the fixed component, thereby causing the fan head to rotate relative to the support. During fan assembly, the fixed component is usually secured to the support with several screws, which is not very convenient. Summary of the Invention

[0003] The technical problem to be solved by this invention is: how to improve the ease of assembly of fans.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: The present invention provides a fan, which includes a fan head and a support part; the fan has a rotating part that is fixedly connected to the fan head; the fan has a fixing part that is fixedly connected to the support part by a snap-fit ​​structure.

[0005] The beneficial effects of this invention are as follows: The fan provided by this invention has a fast and simple assembly process, where the fixing part and the support part are fixedly connected by a snap-fit ​​structure. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of a fan according to an embodiment of the present invention; Figure 2 This is an exploded view of the fan in this embodiment; Figure 3 This is a schematic diagram of the left and right rotating device in this embodiment; Figure 4 This is a cross-sectional view of the left and right rotating device in this embodiment; Figure 5 The explosion of the left and right rotating device in this embodiment Figure 1 ; Figure 6 The explosion of the left and right rotating device in this embodiment Figure 2 ; Figure 7 This is an exploded view of the support portion in this embodiment; Figure 8 This is an exploded view of the control unit in this embodiment; Figure 9This is a schematic diagram of the control unit housing in this embodiment; Figure 10 This is a schematic diagram of the fan structure when the fixing member is in the first position according to this embodiment; Figure 11 for Figure 10 A magnified view of a portion of the image; Figure 12 This is a schematic diagram of the fan structure when the fixing member is in the second position in this embodiment; Figure 13 for Figure 12 A magnified view of a portion of the image; Figure 14 This is an exploded view of the U-shaped bracket in this embodiment; Figure 15 This is an exploded view of the air supply assembly in this embodiment; Figure 16 This is a cross-sectional view of the fan in this embodiment; Figure 17 for Figure 16 A magnified view of a portion of the image; Label Explanation: 1. Fan head; 2. Left and right rotating mechanism; 3. Support part; 11. Air supply assembly; 12. U-shaped bracket; 21. Rotating component; 22. Fixing component; 23. Primary power source; 24. Ball bearing; 25. Snap ring; 31. Central control unit; 32. Support rod; 33. Base; 111. Second power source; 121. First cavity; 122. First cable outlet; 123. Damping pad; 211. Limiting groove; 212. Second cavity; 213. Flat hole; 214. Annular groove; 215. Rib; 216. Second cable outlet; 221. Third cavity; 222. First locking part; 223. Track; 224. Third cable outlet; 231. Power output end; 311. Receiving cavity; 312. Control board; 313. Second locking part; 314. Clearance notch; 315. Outer shell; 316. Cover; 317. Connecting rod; 318. Decorative cover; 319. Reinforcing rib; 2221, Card slot; 3131, Flexible cantilever. Detailed Implementation

[0007] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0008] The present invention aims to solve the problem of low assembly convenience of fans currently on the market. To solve this problem, the inventors of the present invention proposed to use a snap-fit ​​structure to achieve a fixed connection between the fixing part 22 and the support part 3. Compared with the existing method of fixing the fixing part 22 to the support part 3 with screws, the assembly speed is faster and the operation is simpler.

[0009] Please see Figure 1 and 2 This invention provides a fan comprising a fan head 1, a left-right rotating device 2, and a support portion 3. The fan head 1 and the support portion 3 are arranged sequentially from top to bottom, meaning that at least a portion of the fan head 1 is located above the support portion 3, and at least a portion of the support portion 3 is located below the fan head 1. See also Figures 3 to 6 The left-right oscillation device 2 includes a rotating component 21, a fixed component 22, and a first power source 23. The rotating component 21 is fixedly connected to the fan head 1, and the fixed component 22 is fixedly connected to the support part 3 through a snap-fit ​​structure. That is, the snap-fit ​​structure prevents the fixed component 22 from being pulled out of the support part 3 or from rotating relative to the support part 3. The first power source 23 is used to make the rotating component 21 rotate relative to the fixed component 22, thereby causing the fan head 1 to rotate relative to the support part 3, thus realizing the left-right oscillation function of the fan.

[0010] Compared to using screws to fix parts together, using snap-fit ​​structures to fix parts together has the advantages of faster assembly speed, lower error rate, and simpler operation.

[0011] As can be seen from the above description, the beneficial effects of the present invention are as follows: by changing the way the fixing member 22 and the support part 3 are fixedly connected, the assembly convenience of the fan is improved by utilizing the fast assembly speed, low error rate and simple operation of the snap-fit ​​structure.

[0012] Preferably, see Figures 7 to 9 The upper end of the support part 3 has a receiving cavity 311, see [reference]. Figures 10 to 13 The fastener 22 is inserted into the receiving cavity 311, and the snap-fit ​​structure is located in the receiving cavity 311.

[0013] As described above, the snap-fit ​​structure is located inside the receiving cavity 311, is not exposed, and does not affect the aesthetic appearance of the fan.

[0014] If necessary, the fan of the present invention can also be designed with a snap-fit ​​structure located outside the receiving cavity 311.

[0015] Depending on the needs, the fan of the present invention can also be designed such that the upper end of the support part 3 is inserted into the fixing member 22.

[0016] Preferably, see Figures 4 to 6 The rotating part 21 has an annular protrusion at its upper end, and a limiting groove 211 is provided on the lower side of the protrusion. A ball 24 is provided in the limiting groove 211. The fixed part 22 has an annular track 223 on its upper side. The ball 24 is located in the track 223. When the rotating part 21 rotates relative to the fixed part 22, the ball 24 slides or rolls along the track 223.

[0017] As described above, a ball bearing 24 is provided between the lower side of the convex edge of the rotating member 21 and the upper side of the fixed member 22. The ball bearing 24 separates the lower side of the convex edge of the rotating member 21 from the upper side of the fixed member 22, thereby reducing the frictional force between the rotating member 21 and the fixed member 22 when they rotate relative to each other.

[0018] If necessary, the ball bearing 24 may not be provided between the lower side of the protrusion of the rotating part 21 and the upper side of the fixed part 22.

[0019] Preferably, see Figures 4 to 6 The rotating part 21 is inserted into the fixed part 22, and the outer circumferential surface of the rotating part 21 or the inner circumferential surface of the fixed part 22 is provided with at least three ribs 215 along the vertical direction.

[0020] As can be seen from the above description, the outer peripheral surface of the rotating part 21 or the inner peripheral surface of the fixed part 22 is provided with at least three ribs 215 along the vertical direction, which can reduce the contact area between the outer peripheral surface of the rotating part 21 and the inner peripheral surface of the fixed part 22, thereby reducing the frictional force when the rotating part 21 and the fixed part 22 rotate relative to each other.

[0021] Depending on the needs, the outer circumferential surface of the rotating part 21 and the inner circumferential surface of the fixed part 22 may not have ribs 215.

[0022] Preferably, see Figures 4 to 6 The rotating component 21 is inserted into the fixed component 22, with its lower end protruding from the fixed component 22. A retaining spring 25 is engaged at the lower end of the rotating component 21, preventing the rotating component 21 from moving upward relative to the fixed component 22. The fixed component 22 has a hole through which the lower end of the rotating component 21 passes. When the rotating component 21 tends to move upward relative to the fixed component 22, the retaining spring 25 cannot pass through the hole and rests against the fixed component 22, preventing the rotating component 21 from moving upward relative to the fixed component 22.

[0023] As can be seen from the above description, by setting a retaining ring 25 at the lower end of the rotating part 21 to prevent the rotating part 21 from moving upward relative to the fixed part 22, the structure is simple, compact, reliable, and easy to assemble.

[0024] If necessary, other structural designs can also be used to prevent the rotating part 21 from moving upward relative to the fixed part 22. For example, a clearance hole can be opened on the fixed part 22 corresponding to the angle range of the fan oscillation. After the rotating part 21 is inserted into the fixed part 22, the limiting part is inserted into the rotating part 21 through the clearance hole. The clearance hole can prevent the limiting part from moving upward, thereby preventing the rotating part 21 from moving upward relative to the fixed part 22.

[0025] Preferably, see Figures 3 to 6 The rotating part 21 is fixedly connected to the fan head 1 in a detachable manner.

[0026] As described above, the rotating component 21 is detachably fixed to the fan head 1, which allows the left and right rotating device 2 to be modularized, improving the convenience of parts manufacturing and assembly. First, the rotating component 21, the ball bearing 24, the fixing component 22 and the first power source 23 are assembled onto the fan head 1 in sequence to form the left and right rotating device 2. Then, the fan head 1 and the left and right rotating device 2 are assembled together onto the support part 3.

[0027] Depending on the needs, the fan of the present invention can also be designed such that the rotating part 21 and the fan head 1 are fixedly connected in a non-detachable manner, for example, integrally formed.

[0028] Preferably, see Figures 3 to 6 , Figure 14 The first power source 23 is disposed within the receiving cavity 311, and the fixing member 22 is fixedly connected to the first power source 23. The first power source 23 has a power output end 231, and the rotating member 21 is drivenly connected to the power output end 231, so that the rotating member 21 can rotate relative to the fixing member 22 under the drive of the power output end 231. A control board 312 is also provided within the receiving cavity 311, and the first power source 23 is connected to the control board 312, so that the control board 312 can transmit control signals to the first power source 23.

[0029] As can be seen from the above description, the first power source 23 is located inside the receiving cavity 311, which makes the first power source 23 close to the control board 312, which helps to shorten the length of the connection line between the first power source 23 and the control board 312; the fixing member 22 is fixedly connected to the first power source 23, so that the first power source 23 and the control board 312 do not rotate relative to each other, which helps to protect the connection line between the first power source 23 and the control board 312.

[0030] As needed, the fan of the present invention can also be designed such that the first power source 23 and the rotating component 21 are arranged sequentially from top to bottom, the first power source 23 and the rotating component 21 are fixedly connected, and the power output end 231 of the first power source 23 is inserted into the fixing component 22, or the power output end 231 is fixedly connected to the fixing component 22 through a pivot perpendicular to the power output end 231, passing through the fixing component 22 and the power output end 231.

[0031] Preferably, see Figure 2 The fan head 1 includes an air supply assembly 11 and a U-shaped bracket 12. The air supply assembly 11 and the U-shaped bracket 12 are rotatably connected, allowing for manual adjustment of the air supply assembly 11's up-and-down oscillation. See also Figures 14 to 17 The air supply assembly 11 includes a second power source 111, which is connected to the control board 312 via a connecting cable, enabling the control board 312 to transmit control signals to the second power source 111. The U-shaped bracket 12 has a first cavity 121 and a first cable outlet 122, with the first cable outlet 122 located directly above the receiving cavity 311. (See attached image) Figure 6 , Figure 14 and Figure 17 The rotating component 21 has a second cavity 212 and a second outlet 216, and the fixing component 22 has a third cavity 221 and a third outlet 224. The rotating component 21 is inserted into the third cavity 221, and the connecting wire passes through the first cavity 121, the first outlet 122, the second cavity 212, the second outlet 216 and the third outlet 224 in sequence.

[0032] As described above, the connection cable between the second power source 111 and the control board 312 is hidden inside the fan and is not exposed, thus not affecting the aesthetic appearance of the fan.

[0033] Depending on the needs, the fan head 1 may also exclude the U-shaped bracket 12, and the rotating part 21 may be directly fixedly connected to the air supply assembly 11.

[0034] If necessary, a third power source can also be installed on the U-shaped bracket 12 to realize the automatic adjustment of the up and down oscillation of the air supply component 11.

[0035] Preferably, see Figures 8 to 13 The fastener 22 has a first engaging portion 222, and the support portion 3 has staggered second engaging portions 313 and clearance notches 314, the clearance notches 314 matching the first engaging portions 222; the fastener 22 can rotate relative to the support portion 3 from a first position to a second position; see also Figure 10 and 11 When the fastener 22 is in the first position, the first snap-fit ​​portion 222 is located directly below the corresponding clearance notch 314; see also Figure 12 and 13 When the fastener 22 is in the second position, the first snap-fit ​​part 222 is located directly below the corresponding second snap-fit ​​part 313 and snaps with the second snap-fit ​​part 313 to form a snap-fit ​​structure. The fastener 22 and the support part 3 are fixedly connected through the snap-fit ​​structure.

[0036] As described above, the fixing member 22 is first moved downward relative to the support part 3, so that the first engaging part 222 passes through the corresponding clearance notch 314 and is located directly below the clearance notch 314. Then, the fixing member 22 is rotated relative to the support part 3, so that the first engaging part 222 is located directly below the corresponding second engaging part 313 and engages with the second engaging part 313. When the fixing member 22 and the support part 3 tend to separate in the vertical direction, the first engaging part 222 abuts against the second engaging part 313, preventing the elastic engaging part from being subjected to excessive force, which could lead to disengagement or even damage.

[0037] If necessary, the clearance notch 314 can be omitted, and the first locking part 222 and the second locking part 313 can be designed so that the fixing member 22 can be locked with the support part 3 by moving the fixing member 22 downward relative to the support part 3, without rotating the fixing member 22 relative to the support part 3. The elastic locking part of the first locking part 222 and the second locking part 313 prevents the fixing member 22 from being pulled out of the support part 3 and also prevents the fixing member 22 from rotating relative to the support part 3. When designing the elastic locking part, it is necessary to consider increasing the strength of the elastic locking part to reduce the risk of disengagement and damage.

[0038] Preferably, see Figure 6 , Figures 8 to 13 The first snap-fit ​​portion 222 is a block-shaped protrusion on the outer peripheral surface of the fixing member 22. The receiving cavity 311 contains an annular sheet-like body. The sheet-like body includes a second snap-fit ​​portion 313 and a clearance notch 314. The lower side of the sheet-like body is provided with multiple reinforcing ribs 319. The upper side of the first snap-fit ​​portion 222 is provided with a snap groove 2221. The second snap-fit ​​portion 313 includes an elastic cantilever 3131. When the fixing member 22 is in the second position, the elastic cantilever 3131 is located in the corresponding snap groove 2221.

[0039] As described above, the first snap-fit ​​portion 222 is block-shaped. When the fastener 22 and the support portion 3 tend to separate in the vertical direction, the first snap-fit ​​portion 222 is not easily damaged. The slot 2221 is located on the first snap-fit ​​portion 222, reducing manufacturing difficulty. The multiple reinforcing ribs 319 on the lower side of the sheet-like body increase its strength, making it less prone to damage when the fastener 22 and the support portion 3 tend to separate in the vertical direction.

[0040] Depending on the requirements, the fan of the present invention may also be designed such that the first snap-fit ​​part 222 includes an elastic cantilever 3131, and the second snap-fit ​​part 313 includes a slot 2221.

[0041] Preferably, see Figure 7 The support part 3 includes a central control part 31, a support rod 32 and a base 33 arranged sequentially from top to bottom. The central control part 31 and the base 33 are respectively fixedly connected to the support rod 32 in a detachable manner, and the fastener 22 is fixedly connected to the central control part 31 through a snap-fit ​​structure.

[0042] As can be seen from the above description, the central control unit 31 and the base 33 are respectively fixedly connected to the support rod 32 in a detachable manner, so that the support unit 3 can be disassembled, thereby improving the convenience of parts manufacturing.

[0043] Depending on the needs, the central control unit 31 and the base 33 can also be fixedly connected to the support rod 32 by screws, or fixedly connected in a non-removable manner, such as by integral molding.

[0044] Please see Figures 1 to 17 One embodiment of the present invention is as follows: A type of fan, see Figure 1 and 2 The fan includes a fan head 1, a left-right rotating device 2, and a support part 3, with the fan head 1 and the support part 3 arranged sequentially from top to bottom. See also Figures 3 to 6 The left-right oscillation device 2 includes a rotating component 21, a fixed component 22, and a first power source 23. The rotating component 21 is fixedly connected to the fan head 1 with screws, and the fixed component 22 is fixedly connected to the support part 3 through a snap-fit ​​structure. The first power source 23 is used to make the rotating component 21 rotate relative to the fixed component 22, thereby causing the fan head 1 to rotate relative to the support part 3, thus realizing the left-right oscillation function of the fan.

[0045] See Figures 3 to 6 The rotating component 21 is inserted into the fixed component 22, with its lower end protruding from the lower end of the fixed component 22. The lower end of the rotating component 21 has an annular groove 214, within which a retaining spring 25 is engaged. The retaining spring 25 is located below the fixed component 22, preventing the rotating component 21 from moving upwards relative to the fixed component 22. The fixed component 22 and the first power source 23 are arranged sequentially from top to bottom, and are fixedly connected by screws. The first power source 23 has a power output end 231. The lower end of the rotating component 21 has a flat hole 213 that matches the power output end 231. The power output end 231 is inserted into the flat hole 213, allowing the rotating component 21 to rotate relative to the fixed component 22 under the influence of the power output end 231.

[0046] See Figures 4 to 6 The rotating component 21 has an annular protrusion at its upper end, and a limiting groove 211 is provided on the lower side of the protrusion. A ball bearing 24 is provided in the limiting groove 211. The fixed component 22 has an annular track 223 on its upper side, and the ball bearing 24 is located in the track 223. When the rotating component 21 rotates relative to the fixed component 22, the ball bearing 24 slides or rolls along the track 223. The outer circumferential surface of the rotating component 21 or the inner circumferential surface of the fixed component 22 is provided with multiple ribs 215 in the vertical direction.

[0047] See Figures 7 to 9 The support part 3 includes a central control part 31, a support rod 32, and a base 33 arranged sequentially from top to bottom. The central control part 31 and the base 33 are threadedly connected to the support rod 32, without affecting the aesthetic appearance of the fan. The fixing part 22 is fixedly connected to the central control part 31 by a snap-fit ​​structure. See also Figure 8 and 17The central control unit 31 includes a housing 315, a face cover 316, a control board 312, a decorative cover 318, and a connecting rod 317. The control board 312 is located inside the housing 315, and the face cover 316 covers the opening on the side of the housing 315, corresponding to the control board 312. The upper end of the connecting rod 317 is fixedly connected to the housing 315 by screws, and the lower end of the connecting rod 317 is connected to the support rod 32. The decorative cover 318 is fitted onto the connecting rod 317, covering the connection between the connecting rod 317 and the housing 315, thus improving the aesthetics of the fan.

[0048] See Figures 8 to 13 The central control unit 31 has a receiving cavity 311, and the fixing member 22 is inserted into the receiving cavity 311. A snap-fit ​​structure is located within the receiving cavity 311. The fixing member 22 has a first engaging portion 222, and the support portion 3 has staggered second engaging portions 313 and clearance notches 314, with the clearance notches 314 matching the first engaging portions 222. The fixing member 22 can rotate relative to the support portion 3 from a first position to a second position. See also... Figure 10 and 11 When the fastener 22 is in the first position, the first snap-fit ​​portion 222 is located directly below the corresponding clearance notch 314; see also Figure 12 and 13 When the fastener 22 is in the second position, the first snap-fit ​​part 222 is located directly below the corresponding second snap-fit ​​part 313 and snaps with the second snap-fit ​​part 313 to form a snap-fit ​​structure. The fastener 22 and the support part 3 are fixedly connected through the snap-fit ​​structure.

[0049] The first snap-fit ​​portion 222 is a block-shaped protrusion on the outer peripheral surface of the fixing member 22. There is an annular sheet-like body in the receiving cavity 311. The sheet-like body includes a second snap-fit ​​portion 313 and a clearance notch 314. The upper side of the first snap-fit ​​portion 222 is provided with a snap groove 2221. The second snap-fit ​​portion 313 includes an elastic cantilever 3131. When the fixing member 22 is in the second position, the elastic cantilever 3131 is located in the corresponding snap groove 2221. The elastic snap-fit ​​point between the first snap-fit ​​portion 222 and the second snap-fit ​​portion 313 includes the elastic cantilever 3131 and the snap groove 2221.

[0050] See Figure 2 , Figures 14 to 17 The fan head 1 includes an air supply assembly 11 and a U-shaped bracket 12. The air supply assembly 11 and the U-shaped bracket 12 are rotatably connected, allowing for manual adjustment of the air supply assembly 11's up-and-down oscillation. The structure of the air supply assembly 11 can be found in [reference needed]. Figure 15 Other fans available on the market can also be referenced. The air supply assembly 11 includes a second power source 111, which is connected to the control board 312 via a connecting cable, enabling the control board 312 to transmit control signals to the second power source 111. The structure of the U-shaped bracket 12 can be found in [reference needed]. Figure 14Other fans on the market can also be referenced. The U-shaped bracket 12 includes two damping pads 123, and the air supply assembly 11 is clamped between the two damping pads 123. The air supply assembly 11 can be stopped in the adjusted position by friction. The U-shaped bracket 12 has a first cavity 121 and a first cable outlet 122. The first cable outlet 122 is located directly above the receiving cavity 311. The rotating member 21 has a second cavity 212 and a second cable outlet 216. The fixing member 22 has a third cavity 221 and a third cable outlet 224. The rotating member 21 is inserted into the third cavity 221. The connecting wire passes through the first cavity 121, the first cable outlet 122, the second cavity 212, the second cable outlet 216, and the third cable outlet 224 in sequence. The first power source 23 is connected to the control board 312, so that the control board 312 can transmit control signals to the first power source 23.

[0051] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A fan, characterized in that: Including the fan head and support; It has a rotating component, which is fixedly connected to the fan head; It has a fastener, which is fixedly connected to the support part by a snap-fit ​​structure.

2. The fan as described in claim 1, characterized in that: The upper end of the support has a receiving cavity, the fastener is inserted into the receiving cavity, and the buckle structure is located in the receiving cavity.

3. The fan as described in claim 1 or 2, characterized in that: The rotating component has an annular convex edge at its upper end, and a limiting groove is provided on the lower side of the convex edge. A ball is provided in the limiting groove. The fixed component has an annular track on its upper side, and the ball is located in the track. When the rotating component rotates relative to the fixed component, the ball slides or rolls along the track.

4. The fan as described in claim 1 or 2, characterized in that: The rotating component is inserted into the fixed component, and the outer circumferential surface of the rotating component or the inner circumferential surface of the fixed component is provided with at least three ribs along the vertical direction.

5. The fan as described in claim 1 or 2, characterized in that: The rotating component is inserted into the fixed component, and the lower end of the rotating component protrudes from the fixed component. A retaining spring is engaged at the lower end of the rotating component to prevent the rotating component from moving upward relative to the fixed component.

6. The fan as described in claim 2, characterized in that: The cavity is equipped with a first power source, and the fixing component is fixedly connected to the first power source; the first power source has a power output end, and the rotating component is drivenly connected to the power output end. The cavity also contains a control board, and the first power source is connected to the control board.

7. The fan as described in claim 6, characterized in that: The fan head includes an air supply component and a U-shaped bracket. The air supply component includes a second power source, which is connected to the control board via a connecting wire. The U-shaped bracket has a first cavity and a first cable outlet, with the first cable outlet located directly above the receiving cavity. The rotating component has a second cavity and a second cable outlet, and the fixing component has a third cavity and a third cable outlet. The rotating component is inserted into the third cavity, and the connecting wire passes through the first cavity, the first cable outlet, the second cavity, the second cable outlet, and the third cable outlet in sequence.

8. The fan as described in claim 2, characterized in that: The fastener has a first snap-fit ​​portion, and the support portion has staggered second snap-fit ​​portions and clearance notches, with the clearance notches matching the first snap-fit ​​portions. The fastener can rotate relative to the support from a first position to a second position; when the fastener is in the first position, the first snap-fit ​​part is located directly below the corresponding clearance notch; when the fastener is in the second position, the first snap-fit ​​part is located directly below the corresponding second snap-fit ​​part, and snaps with the second snap-fit ​​part to form a snap-fit ​​structure, and the fastener and the support are fixedly connected by the snap-fit ​​structure.

9. The fan as described in claim 8, characterized in that: The first snap-fit ​​part is a block-shaped protrusion on the outer peripheral surface of the fastener. There is an annular sheet-like body inside the receiving cavity. The sheet-like body includes a second snap-fit ​​part and a clearance notch. Multiple reinforcing ribs are provided on the lower side of the sheet-like body. A slot is provided on the upper side of the first snap-fit ​​part. The second snap-fit ​​part includes an elastic cantilever. When the fastener is in the second position, the elastic cantilever is located in the corresponding slot.

10. The fan as claimed in claim 1, characterized in that: The support unit includes a central control unit, a support rod, and a base arranged sequentially from top to bottom. The central control unit and the base are detachably fixed to the support rod, and the fastener is fixedly connected to the central control unit through a snap-fit ​​structure.

Images