A fan wiring cover assembly

Abstract

The utility model provides a fan wiring cover subassembly, include: fan is equipped with the installation mouth, wiring cover subassembly includes: cover body, cover body is located the installation mouth, and one side of cover body is equipped with the structure that turns over, the guide space for guiding cable is formed between the shell of turning over structure and fan. The utility model solves the technical problem: in the related art, the fan wiring cover is closely combined with the fan shell, and the reserved space for the cable to pass through is lacked, which makes the cable installation operation extremely inconvenient, time -consuming and labor -intensive.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine technology, and more specifically, to a wind turbine wiring cover assembly. Background Technology

[0002] As a common electrical device, a fan typically has internal terminals or circuit boards for connecting to an external power source for power supply and control. To prevent electric shock and protect internal components, the fan casing has mounting ports, which are covered with wiring caps to seal them.

[0003] However, the relevant technology has at least one of the following problems: the fan terminal cover is tightly fitted to the fan casing, and there is no reserved space for the transfer cable to pass through, which makes the cable installation operation extremely inconvenient, time-consuming and labor-intensive. Utility Model Content

[0004] The technical problem solved by this utility model is that in the related technology, the fan terminal cover is tightly fitted to the fan housing, and there is no reserved space for the transfer cable to pass through, which makes the cable installation operation extremely inconvenient, time-consuming and labor-intensive.

[0005] To solve the above problems, this utility model provides a fan wiring cover assembly, including: a fan with an installation port; the wiring cover assembly includes: a cover body, the cover body is disposed at the installation port, and a folding structure is provided on one side of the cover body; a guiding space for guiding cables is formed between the folding structure and the fan housing.

[0006] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: Compared with related technologies, this utility model sets a folding structure on one side of the cover, so that a guiding space for guiding and accommodating cables is formed between the folding structure and the fan housing, allowing installers to better position cables in the guiding space; furthermore, the folding structure bends relative to the cover to form a slope, so that cables do not need to bend 90 degrees to enter the fan; cables can be smoothly introduced into the fan along the inclined surface, greatly reducing the risk of insulation layer damage and core breakage caused by large bending of the cables.

[0007] In one embodiment of this utility model, the fan is provided with an installation space; the folding structure includes an inclined portion, one side of which is connected to the cover; the cable is installed to the installation space through the inclined portion.

[0008] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: the cable is installed into the installation space through the inclined part, which provides guidance for the cable, allowing the cable to enter the installation space of the fan at a preset angle, avoiding messy cable arrangement in the guide space, and further improving the efficiency of cable installation.

[0009] In one embodiment of this utility model, the inclined portion is provided with a slot, and the slot is connected to the installation space.

[0010] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: by setting a slot in the inclined part that communicates with the installation space, the resistance to the cable entering the installation space is reduced, allowing the cable to enter the installation space directly and smoothly through the slot, thereby further improving the ease of installation.

[0011] In one embodiment of this utility model, the folding structure is further provided with a stepped portion, which is connected to the inclined portion and is located on the side of the inclined portion away from the cover; a first space is formed between the stepped portion and the shell.

[0012] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: by adding a stepped section and forming a first space, it complements the space corresponding to the inclined section. The height of the stepped section can be adjusted according to the cable specifications or quantity, increasing the diversity and capacity of the guiding space, better adapting to different wiring scenarios, and avoiding the compression and deformation of cables due to insufficient space.

[0013] In one embodiment of this utility model, a second space is formed between the inclined portion and the shell; the first space and the second space constitute a guide space.

[0014] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: the inclined part and the shell form a second space, and the first space and the second space constitute a guiding space, increasing the diversity and capacity of the guiding space.

[0015] In one embodiment of this utility model, the guide space, the slot, and the installation space work together to form a heat dissipation channel.

[0016] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: By combining the guiding space, slotting, and installation space to form a heat dissipation channel, the connectivity of the slotting and the flow of the guiding space are utilized to realize the circulation of air in this area, effectively dissipating the heat generated by the cables and internal components of the installation space, avoiding heat accumulation, protecting the internal components and cables of the fan, and extending their service life.

[0017] In one embodiment of this utility model, the fan is provided with a first circuit board; the cover is provided with a positioning slot on the side away from the folding structure; the wiring cover assembly also includes a snap-fit ​​component; one end of the snap-fit ​​component is snapped into the positioning slot, and the other end is snapped into the first circuit board.

[0018] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: by having one end of the snap-fit ​​component snap into the positioning slot of the cover and the other end snap into the first circuit board, a dual positioning snap-fit ​​between the cover and the first circuit board is achieved. On the one hand, this improves the stability of the cover installation and prevents the cover from loosening or shifting. On the other hand, the snap-fit ​​structure does not require additional fasteners, which facilitates the quick installation and removal of the cover and reduces the later maintenance costs.

[0019] In one embodiment of this utility model, the fan is further provided with a second circuit board, which is disposed on the first circuit board; the snap-fit ​​component includes a snap-fit ​​part and a fixing part; the snap-fit ​​part snaps into the first circuit board, the fixing part snaps into the positioning slot, and at least a portion of the structure of the second circuit board is disposed on the fixing part.

[0020] Compared with the existing technology, the technical effect achieved by adopting this technical solution is as follows: by splitting the snap-fit ​​component into a snap-fit ​​part that snaps into the first circuit board and a fixing part that snaps into the positioning slot and accommodates the second circuit board part structure, a multi-purpose structure is achieved: the fixing part not only undertakes the connection function between the cover and the first circuit board, but also provides positioning support for the second circuit board, thereby improving the installation stability of the second circuit board.

[0021] In one embodiment of this utility model, the fan is provided with an installation position located in the installation space; the cover is provided with a shielding part that cooperates with the installation position; when the cover is installed on the fan, the shielding part shields the installation position.

[0022] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: by setting a shielding part on the cover to cooperate with the installation position, the installation position is fully covered and shielded during the installation of the cover, effectively isolating dust and impurities.

[0023] In one embodiment of this utility model, the cover is provided with multiple positioning and mounting holes; the multiple positioning and mounting holes are arranged circumferentially along the cover.

[0024] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: By arranging multiple positioning mounting holes around the circumference of the cover, a multi-point, circumferentially uniform positioning reference is provided for the cover; on the one hand, it ensures that the cover is accurately aligned with the fan mounting port, avoiding installation misalignment; on the other hand, the circumferentially arranged mounting holes can make the cover bear force evenly, preventing the cover from deforming due to excessive local force, while improving the sealing fit between the cover and the mounting port and reducing dust intrusion.

[0025] By adopting the technical solution of this utility model, the following technical effects can be achieved: (1) By setting a folding structure on one side of the cover, the present invention forms a guide space between the folding structure and the fan housing for guiding and accommodating cables, allowing installers to better position cables in the guide space; and the folding structure bends relative to the cover to form a slope, so that the cables do not need to bend 90 degrees to enter the fan; the cables can be smoothly introduced into the fan along the inclined surface, greatly reducing the risk of insulation layer damage and core breakage caused by large bending of the cables; (2) By adding a stepped section and forming a first space, it complements the space corresponding to the inclined section: the height of the stepped section can be adjusted according to the cable specifications or quantity, increasing the diversity and capacity of the guiding space, better adapting to different wiring scenarios, and avoiding the cable from being squeezed or deformed due to insufficient space. (3) By combining the guiding space, slotting and installation space to form a heat dissipation channel, the connectivity of the slotting and the flow of the guiding space are used to realize the circulation of air in the area, effectively dissipating the heat generated by the cables and internal components of the installation space, avoiding heat accumulation, protecting the internal components and cables of the fan, and extending their service life. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 A schematic diagram of the structure of a fan wiring cover assembly provided in an embodiment of this utility model; Figure 2 for Figure 1 The diagram shows the structure of the fan wiring cover assembly from a first-view perspective. Figure 3 for Figure 2 A cross-sectional view along the AA direction; Figure 4 for Figure 3 A magnified view of a section at point B in the middle; Figure 5 for Figure 3 Schematic diagram of the heat dissipation channel in the middle; Figure 6 for Figure 1 A diagram showing the assembly of the central wiring cover, the first circuit board, and the second circuit board; Figure 7 for Figure 6 A magnified view of a section at point C; Figure 8 for Figure 6 Exploded view of part of the structure; Figure 9 for Figure 8 A structural diagram from a second-person perspective; Figure 10 for Figure 9 A magnified view of a section at point D; Figure 11 for Figure 8 A schematic diagram of the structure of the cover shown; Figure 12 for Figure 11 The diagram shows the structure of the cover from a third-person perspective.

[0027] Explanation of reference numerals in the attached figures: 10. Fan; 11. Housing; 111. Installation space; 12. First circuit board; 121. Slot; 13. Second circuit board; 14. Mounting position; 20. Wiring cover assembly; 21. Cover; 211. Positioning slot; 212. Shielding part; 213. Positioning mounting hole; 22. Folding structure; 221. Inclined part; 222. Slot; 223. Stepped part; 23. Heat dissipation channel; 24. Snap-fit ​​part; 241. Snap-fit ​​part; 2411. Guide slope; 2412. Locking protrusion; 242. Fixing part; 243. Limiting groove; 244. Abutting part; 30. Guide space; 31. First space; 32. Second space; 40. Wiring terminal. Detailed Implementation

[0028] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] See Figure 1 , Figure 1 This is a schematic diagram of the structure of a fan wiring cover assembly provided in an embodiment of the present utility model; combined with Figures 2 to 12 Specifically, the fan 10 is provided with an installation port; the wiring cover assembly 20 includes: a cover 21, which is located at the installation port, and a folding structure 22 is provided on one side of the cover 21; the folding structure 22 and the housing 11 of the fan 10 form a guiding space 30 for guiding cables.

[0032] Furthermore, the folding structure 22 and the cover 21 form a first angle.

[0033] Specifically, please refer to Figures 1 to 4 The housing 11 of the fan 10 is provided with an installation port, and the cover 21 of the wiring cover assembly 20 is installed onto the housing 11 through the installation port; and the cover 21 has a folding structure 22 on one side, which is bent relative to the main body plane of the cover 21, so that a guide space 30 is naturally formed between the folding structure 22 and the outer wall of the housing 11 of the fan 10 for guiding and accommodating cables; the guide space 30 provides a pre-designed channel for the introduction of cables so that the cables can pass through.

[0034] For further information, please refer to [link / reference]. Figure 3 and Figure 4 and combined Figure 11 and Figure 12 The fan 10 is provided with an installation space 111; the folding structure 22 includes an inclined part 221, one side of which is connected to the cover 21; the cable is installed to the installation space 111 through the inclined part 221.

[0035] Specifically, the fan 10 has an installation space 111 inside for accommodating components such as circuit boards; the folding structure 22 specifically includes an inclined part 221, one side of which is connected to the cover 21 and extends at an incline relative to the plane of the cover 21; the inclined part 221 provides a sloping guide path for the cable, and the cable can be guided along the inclined part 221 into the installation space 111 inside the fan 10, effectively avoiding large bending of the cable.

[0036] For further information, please refer to [link / reference]. Figure 6 The inclined part 221 is provided with a slot 222, which is connected to the installation space 111.

[0037] For further information, please refer to [link / reference]. Figure 6 The slot 222 is provided with a terminal block 40, which is connected to the cable.

[0038] Specifically, a slot 222 is provided on the inclined portion 221, the slot 222 extends along the length of the inclined portion 221 and penetrates through the inclined portion 221; so that the external guiding space 30 can be directly connected to the internal installation space 111 of the fan 10 through the slot 222; the wiring terminal 40 is provided at the slot 222 for connecting to the cable.

[0039] For further information, please refer to [link / reference]. Figure 3 and Figure 4 and combined Figure 11 and Figure 12 The folding structure 22 is also provided with a stepped portion 223, which is connected to the inclined portion 221 and is located on the side of the inclined portion 221 away from the cover 21; a first space 31 is formed between the stepped portion 223 and the shell 11.

[0040] For further information, please refer to [link / reference]. Figure 3 and Figure 4 A second space 32 is formed between the inclined portion 221 and the shell 11; the first space 31 and the second space 32 constitute the guide space 30.

[0041] Specifically, to provide more ample wiring space, the folding structure 22 also includes a stepped portion 223, which is connected to the inclined portion 221 and located on the side of the inclined portion 221 away from the cover 21. A first space 31 is formed between the stepped portion 223 and the housing 11 of the fan 10. The size of the first space 31 is adjustable. For example, the stepped portion 223 refers to the extension of the inclined portion 221 away from the cover, and its extension shape is first set downward relative to the inclined portion 221 and then arranged in a stepped shape. This forms a first space 31 between the stepped portion 223 and the housing 11 of the fan 10. At the same time, a second space 32 is formed between the inclined portion and the housing 11 of the fan 10. The first space 31 and the second space 32 together constitute a guiding space 30 for guiding cables. The design of the stepped portion 223 can significantly increase the overall volume of the guiding space 30, making its wiring capacity stronger.

[0042] For further information, please refer to [link / reference]. Figure 5 As shown by the arrow, the guide space 30, the slot 222 and the mounting space 111 work together to form a heat dissipation channel 23.

[0043] Preferably, the heat dissipation channel 23 is S-shaped.

[0044] Specifically, when the terminal 40 is installed into the slot 222, the terminal 40 and the side wall of the slot 222 form a ventilation hole. At this time, the guide space 30, the slot 222, the ventilation hole and the installation space 111 cooperate to form a heat dissipation channel 23. Since heat is generated when current passes through the terminal 40, the terminal is set at the air outlet position of the slot 222. The hot air generated inside the fan 10 can be discharged from the guide space 30 through the installation space 111, the slot 222 and the ventilation hole, forming an effective air convection to assist in heat dissipation. That is, the natural flow of air or even the airflow of the fan 10 itself is used to directly dissipate heat, avoiding the accumulation of heat in the closed space and reducing the risk of overheating due to poor contact.

[0045] For further information, please refer to [link / reference]. Figures 6 to 9 The fan 10 is provided with a first circuit board 12; the cover 21 is provided with a positioning slot 211 on the side away from the folding structure 22; the wiring cover assembly 20 also includes a snap-fit ​​component 24; one end of the snap-fit ​​component 24 is snapped into the positioning slot 211, and the other end is snapped into the first circuit board 12.

[0046] Specifically, a positioning slot 211 is provided on the side of the cover 21 away from the folding structure 22, and the wiring cover assembly 20 also includes a snap-fit ​​member 24; one end of the snap-fit ​​member 24 is set in the positioning slot 211 and snap-fitted thereto, and the other end is snap-fitted to the first circuit board 12 inside the fan 10, providing stable support and fixation for the cover 21.

[0047] For further information, please refer to [link / reference]. Figures 6 to 9 The fan 10 is also provided with a second circuit board 13, which is disposed on the first circuit board 12; the second circuit board 13 and the first circuit board 12 form a second included angle; the snap-fit ​​component 24 includes a snap-fit ​​part 241 and a fixing part 242; the snap-fit ​​part 241 snaps into the first circuit board 12, the fixing part 242 snaps into the positioning slot 211, and at least a part of the structure of the second circuit board 13 is disposed on the fixing part 242.

[0048] Preferably, the second circuit board 13 is arranged in parallel with the snap-fit ​​component 24.

[0049] For further information, please refer to [link / reference]. Figure 8 The first circuit board 12 is provided with a slot 121 that mates with the snap-fit ​​part 241.

[0050] For further information, please refer to [link / reference]. Figure 8 The fixing part 242 is provided with a limiting groove 243. The limiting groove 243 has an opening on the side away from the cover plate, and the second circuit board 13 enters the limiting groove 243 through the opening.

[0051] For preferred options, please refer to [link / reference]. Figure 7 The snap-fit ​​component 24 also has an abutment part 244 on one side.

[0052] For preferred options, please refer to [link / reference]. Figure 10 The snap-fit ​​part 241 is an elastic snap; the elastic snap includes a guide slope 2411 and a locking protrusion 2412; when the snap-fit ​​part 241 is installed, it is aligned with the slot 121, and the guide slope 2411 of the elastic snap slides into the slot 121 and locks.

[0053] Specifically, the first circuit board 12 is arranged parallel to the cover plate, and the snap-fit ​​member 24 is arranged vertically between the first circuit board 12 and the cover plate. The second circuit board 13 is arranged vertically on the first circuit board 12. The snap-fit ​​part 241 of the snap-fit ​​member 24 snaps into the slot 121 on the first circuit board 12. At this time, the snap-fit ​​member 24 is arranged vertically relative to the first circuit board 12. On this basis, when the snap-fit ​​part 241 snaps into the slot 121, the second circuit board 13 is exactly located in the limiting slot 243 of the fixing part 242, and the abutting part 244 of the snap-fit ​​member 24 abuts against the second circuit board 13 to limit and fix the second circuit board 13. Finally, when the cover plate is installed, the positioning slot 211 on the cover plate snaps into the fixing part 242 to fix the cover plate in the housing 11.

[0054] For further information, please refer to [link / reference]. Figure 3 The fan 10 is provided with an installation position 14, which is located in the installation space 111; the cover 21 is provided with a shielding part 212 that cooperates with the installation position 14; when the cover 21 is installed on the fan 10, the shielding part 212 shields the installation position 14.

[0055] Specifically, the fan 10 is also provided with a mounting position 14, in which a bearing is provided; the cover 21 is provided with a shielding part 212 that cooperates with the mounting position 14; when the cover 21 is installed on the fan 10, the shielding part 212 can shield the mounting position 14 to prevent dust or other debris from entering the mounting position 14.

[0056] For further information, please refer to [link / reference]. Figure 11 and Figure 12 The cover 21 is provided with multiple positioning and mounting holes 213; the multiple positioning and mounting holes 213 are arranged around the circumference of the cover 21.

[0057] Specifically, the cover is provided with multiple positioning and mounting holes 213, which are evenly arranged along the axial direction of the cover 21 to achieve precise positioning and multi-point fixation of the cover 21, preventing it from being misaligned or shaking.

[0058] Furthermore, this utility model also provides an installation method for the fan 10 wiring cover assembly 20; specifically, it includes: in the preparation stage, cleaning the area around the housing 11 of the fan 10, removing dust, oil, metal shavings and other debris to prevent foreign objects from entering the housing 11 or affecting the sealing fit during installation; in the hole alignment stage, confirming that the snap-fit ​​component 24 on the junction box is not bent or corroded, the pin surface is smooth, and checking that the corresponding slot 121 of the elastic buckle is not blocked by foreign objects; in the fixed installation stage, applying axial force to the cover 21, gently pushing the cover 21 towards the housing 11, and achieving precise alignment and fixation with the snap-fit ​​component 24 through the elongated hole.

[0059] Furthermore, the wiring cover assembly 20 can be made of ABS material, which is prepared by melt blending 88% ABS resin, 10% glass fiber, and 2% antioxidant 1010. This material significantly improves mechanical strength while ensuring good insulation performance, enabling the wiring cover to withstand various stresses during the operation of the fan 10, and also has good processing performance, making it suitable for injection molding.

[0060] The glass fiber has a length of 3mm-5mm.

[0061] Furthermore, this utility model also provides a manufacturing process for the wiring cover assembly 20 of the fan 10; firstly, the mold for the wiring cover assembly 20 is manufactured; the mold is made of Cr12MoV mold steel, and after quenching treatment, the hardness reaches HRC58-62, ensuring that the mold has sufficient wear resistance and service life. The surface roughness of the mold cavity Ra≤0.8μm, the dimensional tolerance ±0.05mm, and the tolerance of the snap-fit ​​forming part ±0.02mm. The cavity dimensions are precisely designed, strictly according to the wall thickness of the wiring cover, and the error is controlled within ±0.02mm; the forming part of the mounting slot 121 is polished to ensure that the surface of the slot 121 is smooth after forming; a point gate is adopted, with a diameter of 0.8mm-1.2mm, and is set at the edge of the non-stress area of ​​the isolation plate; venting grooves are set at the mold parting surface, the end of the cavity, etc., with a depth of 0.01mm-0.02mm and a width of 5-10mm.

[0062] Based on this, injection molding is carried out, specifically as follows: the dried modified ABS material is added to the injection molding machine hopper. The barrel temperature is divided into three stages from the hopper to the nozzle: the first stage temperature is 190℃-200℃, the second stage is 200℃-210℃, and the third stage is 210℃-220℃. The nozzle temperature is also 210℃-220℃ to ensure the material is fully melted. A staged injection method is adopted: the first stage injection pressure is 60MPa-70MPa, used to fill the runner with melt; the second stage injection pressure is 80MPa-90MPa, used to fill the cavity to 90%; and the third stage injection pressure is 70MPa-80MPa, used for final filling and holding pressure of the cavity to prevent shrinkage marks. The first stage injection speed is 30mm / s-40mm / s, the second stage is 50mm / s-60mm / s, and the third stage is 20mm / s-30mm / s. The holding pressure is 50mm / s-60MPa, the holding time is 5s-8s, the cooling time is set to 15s-20s, and the back pressure is controlled at 5MPa-10MPa.

[0063] Finally, the demolded cover 20 is trimmed to remove excess parts such as gates and flash, ensuring that the appearance of the product meets the requirements.

[0064] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A fan wiring cover assembly, characterized in that, The fan (10) is provided with an installation port; The wiring cover assembly (20) includes: Cover (21), the cover (21) is provided at the mounting port, and the cover (21) has a folding structure (22) on one side. The folding structure (22) and the housing (11) of the fan (10) form a guide space (30) for guiding cables.

2. The fan wiring cover assembly according to claim 1, characterized in that, The fan (10) is provided with an installation space (111); The folding structure (22) includes an inclined portion (221), one side of which is connected to the cover (21); The cable is installed into the installation space (111) via the inclined portion (221).

3. The fan wiring cover assembly according to claim 2, characterized in that, The inclined portion (221) is provided with a slot (222), which is connected to the installation space (111).

4. The fan wiring cover assembly according to claim 2, characterized in that, The folding structure (22) is also provided with a stepped portion (223), which is connected to the inclined portion (221), and the stepped portion (223) is located on the side of the inclined portion (221) away from the cover (21); A first space (31) is formed between the stepped portion (223) and the shell (11).

5. The fan wiring cover assembly according to claim 4, characterized in that, A second space (32) is formed between the inclined portion (221) and the housing (11). The first space (31) and the second space (32) constitute the guide space (30).

6. The fan junction cover assembly of claim 3, wherein, The guiding space (30), the slot (222) and the installation space (111) work together to form a heat dissipation channel (23).

7. The fan wiring cover assembly according to claim 1, characterized in that, The fan (10) is equipped with a first circuit board (12); The cover (21) has a positioning slot (211) on the side away from the folding structure (22); The wiring cover assembly (20) also includes a snap-fit ​​element (24); One end of the snap-fit ​​component (24) is snapped into the positioning slot (211), and the other end is snapped into the first circuit board (12).

8. The fan wiring cover assembly according to claim 7, characterized in that, The fan (10) is also provided with a second circuit board (13), which is disposed on the first circuit board (12); The snap-fit ​​component (24) includes a snap-fit ​​part (241) and a fixing part (242). The snap-fit ​​part (241) snaps into the first circuit board (12), the fixing part (242) snaps into the positioning slot (211), and at least a portion of the structure of the second circuit board (13) is disposed on the fixing part (242).

9. The fan wiring cover assembly according to claim 2, characterized in that, The fan (10) is provided with a mounting position (14), which is located in the mounting space (111). The cover (21) is provided with a shielding part (212) that cooperates with the mounting position (14). When the cover (21) is installed on the fan (10), the shielding part (212) shields the mounting position (14).

10. The fan wiring cover assembly according to claim 1, characterized in that, The cover (21) is provided with a plurality of positioning and mounting holes (213); The plurality of positioning mounting holes (213) are arranged circumferentially along the cover (21).

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