A motor casing for a fan
By designing detachable fin assemblies and locking structures, the problem of high maintenance costs for traditional motor housing fins is solved, enabling flexible adjustment of heat dissipation performance and stable installation, and reducing maintenance difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU SPACE TIME ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-07-12
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional motor housings have high repair costs and are inconvenient to repair when the fins are damaged. Their heat dissipation performance is fixed and it is difficult to replace or upgrade them according to needs.
The design incorporates a detachable fin assembly structure, enabling detachable installation and flexible replacement of the fins through locking components and adjustable movable fins. Stability is ensured by combining plug-in and threaded connections.
It reduces maintenance costs, improves the flexibility and adaptability of the motor housing, and ensures the stability and flexible adjustment of heat dissipation.
Smart Images
Figure CN224367642U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motors, and in particular to a motor housing for a fan. Background Technology
[0002] In the field of modern electronic equipment and electromechanical systems, with the continuous increase in power density, heat dissipation has become a key factor restricting the improvement of equipment performance. The motor, located at the power supply end of the equipment, has its heat dissipation performance as a crucial consideration. The housing, as one of the main heat dissipation structures of the motor, plays a vital role in heat dissipation. Traditional housings dissipate heat by adding fins, resulting in a square-shaped heat dissipation structure. Typically, the fins are integrated with the housing, meaning that once the housing is manufactured, its heat dissipation performance is fixed. Furthermore, repair costs are relatively high and repairs are inconvenient if the fins are damaged. Utility Model Content
[0003] In order to reduce the repair cost of damaged fins on the motor housing, this application provides a motor housing for a fan.
[0004] The technical solution for a fan motor housing provided in this application is as follows:
[0005] A motor housing for a fan includes a motor housing body and four fin assemblies. The motor housing body has four sets of mounting slots arranged circumferentially, and the four fin assemblies correspond to the four sets of mounting slots. Each set of fin assemblies includes a locking component and two fin mounting members. Each fin mounting member includes a mounting base and several heat dissipation fins disposed on the outer side of the mounting base. The inner side of the mounting base is provided with mounting protrusions that match the corresponding set of mounting slots. The two fin mounting members are symmetrically arranged and distributed sequentially along the axial direction of the motor housing body. The locking component is used to fix the two fin mounting members to the motor housing body.
[0006] By adopting the above technical solution, the fin assembly is designed as a detachable structure mounted on the motor housing. When a component in the fin assembly is damaged, only the corresponding fin mounting piece needs to be removed for repair or replacement, without needing to treat the entire motor housing, greatly reducing maintenance costs. Simultaneously, this detachable structure facilitates the maintenance and upgrades of the motor housing, allowing for the replacement of fin assemblies with different heat dissipation performance according to actual heat dissipation requirements, improving the flexibility and adaptability of the motor housing. Furthermore, the inclusion of two fin mounting pieces along the axial direction of the motor housing body facilitates the insertion of the mounting protrusions into the mounting slots for motor housings with longer shaft lengths.
[0007] Preferably, the locking assembly includes two locking members, which are located at both ends of the fin mounting member, for locking and fixing the same side of the two fin mounting pieces to the motor housing body. The locking member includes a plug, a slot, a first screw, and a threaded hole. The slot and the plug are respectively disposed on the side of the two mounting bases that are close to each other. The plug and the slot are inserted into each other. Both the plug and the mounting base have through holes for the first screw to pass through. The threaded hole is opened on the motor housing body. One end of the first screw passes through the two through holes and is threaded into the threaded hole.
[0008] By adopting the above technical solution, the plug and slot in the locking assembly are interlocked to initially position the two fin mounting pieces. Then, the two fin mounting pieces are firmly fixed to the motor housing body by the threaded connection of the first screw and the threaded hole, which ensures the stability of the fin assembly installation and prevents the fin mounting pieces from loosening during motor operation, thus affecting the motor's heat dissipation and normal operation.
[0009] Preferably, the heat dissipation fins include fixed fins, movable fins, and a second screw. The fixed fins are fixedly mounted on the motor housing body. The movable fins have a rotating rod integrally formed at one end near the motor housing body. A rotating groove matching the rotating rod is formed on one side of the fixed fins. A recessed hole is formed at the outward end of the rotating rod. The second screw is threaded to the outward end of the fixed fin. The end of the second screw facing the recessed hole is not threaded. One end of the second screw is inserted into and rotates in the recessed hole. The two movable fins on the two heat dissipation fins on the same axis are detachably connected. The rotating rod rotates in the rotating groove, and there is an interference fit between the rotating rod and the rotating groove.
[0010] By adopting the above technical solution, the two movable fins on two heat dissipation fins on the same axis are detachably connected, enabling the two movable fins to rotate synchronously. When the movable fin rotates to the closed state, abutting against the fixed fin, the heat dissipation fin has high strength and normal heat dissipation. When the movable fin rotates away from the fixed fin to the open state, the heat dissipation fin has lower strength, but the heat dissipation area increases, and the heat dissipation effect is improved. The opening and closing of the movable fins can be adjusted according to actual heat dissipation needs and actual conditions. At the same time, the interference fit between the rotating rod and the rotating slot ensures that the movable fin remains stable after being adjusted to a suitable angle, preventing it from wobbling arbitrarily.
[0011] Preferably, on one side of two movable fins on the same axis facing each other, a synchronization block is provided on one side and a synchronization groove is provided on the other side, and the synchronization block is inserted into the synchronization groove.
[0012] Preferably, the rotating rod has a protrusion on its side wall and an arc groove is formed on the inner wall of the rotating groove. The protrusion moves with the rotating rod within the arc groove. When the protrusion abuts against the two end walls of the arc groove, the movable fin is in a closed state and a fully open state. When the movable fin is in a closed state, it abuts against the corresponding fixed fin. When the movable fin is in a fully open state, it is close to the adjacent fin and leaves a gap between it and the adjacent heat dissipation fin.
[0013] By adopting the above technical solution, the cooperation of the protrusion and the arc groove provides a limiting effect for the rotation of the movable fins, clearly defining the positions of the movable fins in the closed and fully open states. This facilitates the operator to accurately adjust the angle of the movable fins, while also preventing the movable fins from rotating excessively and bumping into adjacent heat dissipation fins, thus ensuring the reliability and stability of the movable fin adjustment structure.
[0014] Preferably, the end face of the movable fin away from the motor housing body is provided with a force-applying groove for hand force application.
[0015] By adopting the above technical solution, operators can easily rotate the movable fins and adjust their angle by using their hands or tools.
[0016] Preferably, it also includes an adjustable stop block. A through groove is provided on the side wall of the rotating rod. The two ends of the through groove are respectively connected to the concave hole and the rotating groove. The adjustable stop block slides in the through groove. One end of the adjustable stop block near the inner wall of the rotating groove is made of elastic material and abuts against the inner wall of the rotating groove. The other end of the adjustable stop block has an inclined surface facing the side of the second screw, and the end of the second screw abuts against the inclined surface.
[0017] By adopting the above technical solution, the adjustable stop block can slide within the through groove, and its end engages with the second screw. By tightening or loosening the second screw, the clamping force of the stop block against the inner wall of the rotating groove can be adjusted, thereby adjusting the friction between the rotating rod and the rotating groove. Alternatively, the clamping force of the stop block against the inner wall of the rotating groove can be adjusted by replacing the second screw with one of different lengths at its end.
[0018] The main technical effects of this utility model are reflected in the following aspects:
[0019] 1. This utility model designs the fin assembly as a detachable structure that can be mounted on the motor housing. When a component in the fin assembly is damaged, only the corresponding fin mounting piece needs to be removed for repair or replacement, without needing to treat the entire motor housing, greatly reducing maintenance costs. At the same time, this detachable structure facilitates the maintenance and upgrading of the motor housing, allowing for the replacement of fin assemblies with different heat dissipation performance according to actual heat dissipation requirements, improving the flexibility and adaptability of the motor housing. Additionally, two fin mounting pieces are arranged along the axis of the motor housing body, which is for motor housing bodies with longer shaft lengths, facilitating the insertion of the mounting protrusions into the mounting slots.
[0020] 2. The locking assembly of this utility model has a plug and a slot that are interlocked to initially position the two fin mounting pieces. Then, the two fin mounting pieces are firmly fixed to the motor housing body by the threaded connection of the first screw and the threaded hole, which ensures the stability of the fin assembly installation and prevents the fin mounting pieces from loosening during motor operation, thus affecting the heat dissipation effect and normal operation of the motor. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.
[0022] Figure 2 This is a schematic diagram of the installation of the fin assembly according to an embodiment of this application.
[0023] Figure 3 This is a schematic diagram of the structure of two heat dissipation fins spliced together in an embodiment of this application.
[0024] Figure 4 This is a schematic diagram of the structure for mounting fixed and movable fins according to an embodiment of this application.
[0025] Figure 5 yes Figure 4 Enlarged view of point A in the middle.
[0026] Figure 6 This is a schematic diagram of the movable fin structure.
[0027] Figure 7 It is along Figure 3 A partial sectional view of the BB line.
[0028] Explanation of reference numerals in the attached drawings: 1. Motor housing body; 11. Mounting slot; 2. Fin mounting component; 21. Mounting base; 211. Mounting protrusion; 3. Locking component; 31. Insert block; 32. Slot; 33. First screw; 34. Threaded hole; 35. Through hole; 4. Heat dissipation fins; 41. Fixed fin; 411. Rotary groove; 412. Arc groove; 42. Movable fin; 421. Rotating rod; 422. Concave hole; 423. Synchronizing block; 424. Synchronizing groove; 425. Protrusion; 426. Force application groove; 427. Through groove; 43. Second screw; 5. Adjustable stop block; 51. Inclined surface. Detailed Implementation
[0029] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail to make the technical solution of this application easier to understand and master.
[0030] This application discloses a motor housing for a fan.
[0031] Reference Figure 1 and Figure 2This embodiment of a fan motor housing includes a motor housing body 1 and four fin assemblies. The motor housing body 1 has four sets of mounting slots 11 arranged circumferentially. The four fin assemblies correspond to the four sets of mounting slots 11 respectively. Each set of fin assemblies includes a locking component and two fin mounting members 2. The fin mounting member 2 includes a mounting base 21 and a plurality of heat dissipation fins 4 disposed on the outer side of the mounting base 21. The inner side of the mounting base 21 is provided with mounting protrusions 211 that match the corresponding set of mounting slots 11. The two fin mounting members 2 are symmetrically arranged and distributed sequentially along the axial direction of the motor housing body 1. The locking component is used to fix the two fin mounting members 2 on the motor housing body 1.
[0032] Reference Figure 1 and Figure 2 The fin assembly is designed as a detachable structure mounted on the motor housing body 1. When a component in the fin assembly is damaged, only the corresponding fin mounting piece 2 needs to be removed for repair or replacement, without needing to treat the entire motor housing, greatly reducing maintenance costs. Simultaneously, this detachable structure facilitates the maintenance and upgrades of the motor housing, allowing for the replacement of fin assemblies with different heat dissipation performance according to actual heat dissipation requirements, improving the flexibility and adaptability of the motor housing. Two fin mounting pieces 2 are also provided along the axial direction of the motor housing body 1, specifically for motor housing bodies 1 with longer shaft lengths, facilitating the insertion of the mounting protrusion 211 into the mounting groove 11. Multiple mounting grooves 11 and mounting protrusions 211 are available, depending on the actual situation.
[0033] Reference Figure 1 and Figure 2 The locking assembly includes two locking pieces 3, which are located at both ends of the fin mounting piece 2. They are used to lock and fix the same side of the two fin mounting pieces to the motor housing body 1. The locking piece 3 includes a plug 31, a slot 32, a first screw 33, and a threaded hole 34. The slot 32 and the plug 31 are respectively set on the side of the two mounting bases 21 that are close to each other. The plug 31 and the slot 32 are plugged into each other. Both the plug 31 and the mounting base 21 have through holes 35 for the first screw 33 to pass through. The threaded hole 34 is opened on the motor housing body 1. One end of the first screw 33 passes through the two through holes 35 and is threaded into the threaded hole 34.
[0034] Reference Figure 1 and Figure 2 The locking component's insert 31 and slot 32 are interlocked to initially position the two fin mounting pieces 2. Then, the first screw 33 is threaded into the threaded hole 34 to firmly fix the two fin mounting pieces onto the motor housing body 1, ensuring the stability of the fin assembly installation and preventing the fin mounting pieces 2 from loosening during motor operation, which would affect the motor's heat dissipation and normal operation.
[0035] Reference Figures 3-6The heat dissipation fins 4 include fixed fins 41, movable fins 42, and a second screw 43. The fixed fins 41 are fixedly mounted on the motor housing body 1. The movable fins 42 have a rotating rod 421 integrally formed at one end near the motor housing body 1. A rotating groove 411 that partially matches the rotating rod 421 is provided on one side of the fixed fins 41. A recessed hole 422 is provided at the outward end of the rotating rod 421. The second screw 43 is threadedly connected to the outward end of the fixed fins 41. The end of the second screw 43 facing the recessed hole 422 is not threaded. One end of the second screw 43 is inserted into and rotates in the recessed hole 422. The two movable fins 42 on the two heat dissipation fins 4 on the same axis are detachably connected. The rotating rod 421 rotates in the rotating groove 411, and there is an interference fit between the rotating rod 421 and the rotating groove 411.
[0036] Reference Figures 3-6 The two movable fins 42 on the two heat dissipation fins 4 on the same axis are detachably connected, allowing the two movable fins 42 to rotate synchronously. When the movable fin 42 rotates to the closed state, abutting against the fixed fin 41, the heat dissipation fin 4 has high strength and normal heat dissipation. When the movable fin 42 rotates away from the fixed fin 41 to the open state, the heat dissipation fin 4 has lower strength, but the heat dissipation area increases, and the heat dissipation effect is improved. The opening and closing of the movable fin 42 can be adjusted according to actual heat dissipation needs and actual conditions. At the same time, the interference fit between the rotating rod 421 and the rotating groove 411 ensures that the movable fin 42 remains stable after being adjusted to a suitable angle and will not wobble.
[0037] Reference Figures 3-6 On the side of two movable fins 42 on the same axis facing each other, one side is provided with a synchronization block 423, and the other side is provided with a synchronization groove 424, and the synchronization block 423 is inserted into the synchronization groove 424.
[0038] Reference Figures 3-6 The rotating rod 421 has a protrusion 425 on its side wall and an arc groove 412 on its inner wall. The protrusion 425 moves with the rotating rod 421 in the arc groove 412. When the protrusion 425 abuts against the two end walls of the arc groove 412, the movable fin 42 is in a closed state and a fully open state. When the movable fin 42 is in a closed state, the movable fin 42 abuts against the corresponding fixed fin 41. When the movable fin 42 is in a fully open state, the movable fin 42 is close to the adjacent fin and there is a gap between it and the adjacent heat dissipation fin 4.
[0039] Reference Figures 3-6The cooperation between the protrusion 425 and the arc groove 412 provides a limiting function for the rotation of the movable fin 42, clearly defining the position of the movable fin 42 in the closed and fully open states. This facilitates the operator to accurately adjust the angle of the movable fin 42, while also preventing the movable fin 42 from rotating excessively and hitting the adjacent heat dissipation fin 4, thus ensuring the reliability and stability of the movable fin 42 adjustment structure.
[0040] Reference Figures 3-6 The movable fin 42 has a force-applying groove 426 on the end face away from the motor housing body 1 for applying force by hand.
[0041] Reference Figures 3-6 This allows operators to easily rotate the movable fin 42 by hand or with tools to adjust its angle.
[0042] Reference Figures 3-7 It also includes an adjustable stop block 5. A through groove 427 is provided on the side wall of the rotating rod 421. The two ends of the through groove 427 are respectively connected to the concave hole 422 and the rotating groove 411. The adjustable stop block 5 slides in the through groove 427. One end of the adjustable stop block 5 near the inner wall of the rotating groove 411 is made of elastic material and abuts against the inner wall of the rotating groove 411. The elastic material can be rubber or silicone. The other end of the adjustable stop block 5 is provided with an inclined surface 51 facing the second screw 43. The end of the second screw 43 abuts against the inclined surface 51.
[0043] Reference Figures 3-7 The adjustable stop 5 slides within the through groove 427, and its end engages with the second screw 43. By tightening or loosening the second screw 43, the clamping force of the stop 5 against the inner wall of the rotating groove 411 can be adjusted, thereby adjusting the friction between the rotating rod 421 and the rotating groove 411. Alternatively, the clamping force of the stop 5 against the inner wall of the rotating groove 411 can be adjusted by replacing the second screw 43 with different end lengths.
[0044] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.
Claims
1. A motor casing for a fan, characterised in that: The device includes a motor housing body (1) and four fin assemblies. The motor housing body (1) has four sets of mounting slots (11) arranged in sequence along the circumference. The four fin assemblies correspond to the four sets of mounting slots (11). Each set of fin assemblies includes a locking component and two fin mounting pieces (2). The fin mounting pieces (2) include a mounting base (21) and several heat dissipation fins (4) arranged on the outer side of the mounting base (21). The inner side of the mounting base (21) is provided with mounting protrusions (211) that match the corresponding set of mounting slots (11). The two fin mounting pieces (2) are arranged symmetrically to each other and are distributed in sequence along the axial direction of the motor housing body (1). The locking component is used to fix the two fin mounting pieces (2) on the motor housing body (1).
2. The motor casing for a fan according to claim 1, characterized in that: The locking assembly includes two locking components (3), which are located at both ends of the fin mounting component (2) and are used to lock and fix the same side of the two fin mounting pieces to the motor housing body (1). The locking component (3) includes a plug (31), a slot (32), a first screw (33), and a threaded hole (34). The slot (32) and the plug (31) are respectively set on the side of the two mounting bases (21) that are close to each other. The plug (31) and the slot (32) are plugged into each other. Both the plug (31) and the mounting base (21) are provided with through holes (35) for the first screw (33) to pass through. The threaded hole (34) is opened on the motor housing body (1). One end of the first screw (33) passes through the two through holes (35) and is threaded into the threaded hole (34).
3. The motor housing for a fan according to claim 1, characterized in that: The heat dissipation fins (4) include fixed fins (41), movable fins (42), and a second screw (43). The fixed fins (41) are fixedly mounted on the motor housing body (1). A rotating rod (421) is integrally formed at one end of the movable fin (42) near the motor housing body (1). A rotating groove (411) matching the rotating rod (421) is provided on one side of the fixed fin (41). A recessed hole (422) is provided at the outward-facing end of the rotating rod (421). The second screw (43) is threaded to the outward end of the fixed fin (41), and the end of the second screw (43) facing the concave hole (422) is not threaded. The end of the second screw (43) is inserted into and rotates in the concave hole (422). The two movable fins (42) on the two heat dissipation fins (4) on the same axis are detachably connected. The rotating rod (421) rotates in the rotating groove (411), and the rotating rod (421) and the rotating groove (411) are interference fit.
4. A motor housing for a fan according to claim 3, characterized in that: On the side faces of two movable fins (42) on the same axis, one side is provided with a synchronization block (423) and the other side is provided with a synchronization groove (424). The synchronization block (423) is inserted into the synchronization groove (424).
5. A motor housing for a fan according to claim 3, characterized in that: The rotating rod (421) has a protrusion (425) on its side wall and an arc groove (412) on its inner wall. The protrusion (425) moves with the rotating rod (421) in the arc groove (412). When the protrusion (425) abuts against the two end walls of the arc groove (412), the movable fin (42) is in a closed state and a fully open state. When the movable fin (42) is in a closed state, the movable fin (42) abuts against the corresponding fixed fin (41). When the movable fin (42) is in a fully open state, the movable fin (42) is close to the adjacent fin and leaves a gap between it and the adjacent heat dissipation fin (4).
6. A motor housing for a fan according to claim 3, characterized in that: The movable fin (42) has a force-applying groove (426) on the end face away from the motor housing body (1) for applying force by hand.
7. A motor housing for a fan according to claim 3, characterized in that: It also includes an adjustable stop block (5). A through groove (427) is provided on the side wall of the rotating rod (421). The two ends of the through groove (427) are respectively connected to the concave hole (422) and the rotating groove (411). The adjustable stop block (5) slides in the through groove (427). One end of the adjustable stop block (5) near the inner wall of the rotating groove (411) is made of elastic material and abuts against the inner wall of the rotating groove (411). The other end of the adjustable stop block (5) is provided with an inclined surface (51) facing the second screw (43). The end of the second screw (43) abuts against the inclined surface (51).