A heat dissipation shell for a power module
By using a sliding partition and an innovative unlocking mechanism, the problem of fixing the heat dissipation outer shell cover to the housing is solved, enabling efficient maintenance and stable fixation of the power module.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGHAN ELECTRONICS (SHENZHEN) CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-14
AI Technical Summary
The existing heat sink enclosure has a flawed design in the fixing mechanism between the protective cover and the housing, which makes it impossible to quickly release the fixing relationship, affecting maintenance efficiency and making it prone to errors.
Employing spacer and disassembly components, including slidingly connected partitions and an innovative unlocking mechanism, the protective cover is quickly released from the housing by rotating the unlocking sleeve, while multiple locking mechanisms ensure a secure hold.
The internal space of the power module is rationally partitioned, which improves maintenance efficiency, simplifies the disassembly process, and keeps it stable under vibration or external impact.
Smart Images

Figure CN224503820U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat dissipation housing technology, and more specifically, it relates to a heat dissipation housing for a power module. Background Technology
[0002] In existing technologies, heat dissipation housings are core components for thermal management of power modules in modern electronic devices and power systems. Their ease of use directly affects the maintenance efficiency and reliability of the entire power system. However, existing heat dissipation housing technologies have significant shortcomings in practical applications and cannot meet the urgent needs of engineers for efficient and convenient operation.
[0003] In the daily maintenance and repair of the power module heat dissipation housing, the protective cover is a key component for dust and moisture prevention. Its design rationality directly affects the service life and heat dissipation performance of the heat dissipation housing. However, in the existing technology, the design of the fixing mechanism between the protective cover and the housing has serious defects, which makes it impossible to quickly release the fixing relationship between the two.
[0004] Corresponding to the issue of fixing and removing the cover, existing heat dissipation housings also face the problem of not being able to quickly re-fix the protective cover after internal cleaning or inspection. This deficiency is mainly reflected in the fact that traditional fixing structures require precise alignment to complete the installation. However, in actual operating environments, due to factors such as light and space limitations, such precise alignment is often difficult to achieve, resulting in a cumbersome and error-prone installation process. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] In view of the problems existing in the prior art, this utility model provides a heat dissipation shell for power modules to solve the technical problem mentioned in the background art that the existing heat dissipation shell technology cannot meet the urgent needs of engineering technicians for efficient and convenient operation in practical applications.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation housing for a power module, comprising a housing, a spacer assembly on the housing, the spacer assembly including a groove and a partition plate, the groove being formed on the housing, the partition plate being slidably connected to the groove, heat sinks being installed on the housing, a protective cover being detachably installed on the housing, a disassembly assembly being provided between the housing and the protective cover, the disassembly assembly including a protective rod and a protective sleeve, the protective rod being installed on the housing, the protective cover being slidably connected to the protective rod, the protective sleeve being detachably installed on the protective rod, and an unlocking sleeve being rotatably connected to the protective sleeve.
[0009] The present invention is further configured such that an unlocking groove is provided on the unlocking sleeve, and a rotating block is connected to the unlocking sleeve, so that the rotation process of the rotating block is facilitated by the cooperation of the various components.
[0010] The present invention is further configured such that a fixed block is installed on the protective sleeve, and a rotating rod is connected to the rotating block. The rotating rod is slidably connected to the fixed block, and the cooperation of the various components facilitates the completion of the rotation process of the rotating rod.
[0011] The present invention is further configured such that a fourth spring is sleeved on the rotating rod, the two ends of the fourth spring are connected to the rotating block and the fixed block, and the rotating rod passes through the fixed block. The cooperation of the various components facilitates the compression process of the fourth spring.
[0012] The present invention is further configured such that the protective sleeve is provided with a locking assembly, the locking assembly including a control plate and a guide rod, the control plate being mounted on the protective sleeve, the guide rod being slidably connected to the control plate, and one end of the guide rod being connected to an abutment block. The cooperation of the various components facilitates the completion of the sliding movement process of the guide rod.
[0013] The present invention is further configured such that a first spring is sleeved on the guide rod, the two ends of the first spring are connected to the control plate and the abutment block, an insertion block is slidably connected on the protective sleeve, one end of the insertion block abuts against the abutment block, and an insertion groove is opened on the protective rod, the insertion groove being adapted to the insertion rod. Through the cooperative use of each component, the compression process of the first spring is facilitated.
[0014] The present invention is further configured such that a pull sleeve is slidably connected to the protective sleeve, a second spring is connected between the pull sleeve and the protective sleeve, and a rotating sleeve is rotatably connected to the protective sleeve. The cooperation of the various components facilitates the compression process of the second spring.
[0015] The present invention is further configured such that an arc-shaped groove is provided on the rotating sleeve, the arc-shaped groove is adapted to the insertion block, a pull rod is slidably connected to the rotating sleeve, a third spring is sleeved on the pull rod, the two ends of the third spring are connected to the protective sleeve and the rotating sleeve, and one end of the pull rod is inserted into the protective sleeve. The cooperation of the various components facilitates the completion of the compression process of the third spring.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, the present invention provides a heat dissipation housing for a power module, which has the following advantages:
[0018] 1. The partition component enables the scientific zoning of the internal space of the power module. Through the sliding partition structure, a reasonable internal layout is created, which keeps the various components of the power module at an appropriate distance and effectively prevents thermal and electromagnetic interference between electronic components. Secondly, this sliding partition design provides extremely high flexibility in space utilization.
[0019] 2. The disassembly components adopt an innovative quick-unlocking mechanism. By simply rotating the unlocking sleeve, the fixing between the protective cover and the shell can be quickly released, which significantly simplifies the disassembly process of traditional heat dissipation shells that require tools and complicated steps, greatly improving maintenance efficiency. Secondly, the sliding connection design between the protective rod and the protective cover makes the disassembly process of the protective cover smooth and free.
[0020] 3. The locking component adopts a multi-locking mechanism. Through the coordinated work of multiple linkage components such as guide rod, abutment block, and insertion block, a reliable mechanical locking system is formed to ensure that the protective cover and the housing are firmly and securely fixed. Even under equipment vibration or external impact, it can maintain a stable fixing effect. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of a heat dissipation shell for a power module according to the present invention;
[0022] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0023] Figure 3 This is a schematic diagram of the disassembly components in this utility model;
[0024] Figure 4 This is a cross-sectional view of the disassembled components in this utility model;
[0025] Figure 5 This is a schematic diagram of the locking component in this utility model.
[0026] In the diagram: 1. Housing; 2. Groove; 3. Partition; 4. Heat sink; 5. Protective cover; 6. Protective rod; 7. Protective sleeve; 8. Unlocking sleeve; 9. Unlocking groove; 10. Rotating block; 11. Fixing block; 12. Rotating rod; 13. Fourth spring; 14. Control board; 15. Guide rod; 16. Abutment block; 17. First spring; 18. Insertion block; 19. Insertion groove; 20. Pulling sleeve; 21. Second spring; 22. Rotating sleeve; 23. Arc groove; 24. Pulling rod; 25. Third spring. Detailed Implementation
[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0030] Please see Figures 1-5 A heat dissipation housing for a power module includes a housing 1, on which a spacer assembly is provided. The spacer assembly includes a groove 2 and a partition 3. The groove 2 is formed on the housing 1, and the partition 3 is slidably connected to the groove 2. A heat sink 4 is installed on the housing 1. A protective cover 5 is detachably installed on the housing 1. A disassembly assembly is provided between the housing 1 and the protective cover 5. The disassembly assembly includes a protective rod 6 and a protective sleeve 7. The protective rod 6 is installed on the housing 1, and the protective cover 5 is slidably connected to the protective rod 6. The protective sleeve 7 is detachably installed on the protective rod 6, and an unlocking sleeve 8 is rotatably connected to the protective sleeve 7.
[0031] The unlocking sleeve 8 has an unlocking slot 9, and a rotating block 10 is connected to the unlocking sleeve 8.
[0032] A fixed block 11 is installed on the protective sleeve 7, and a rotating rod 12 is connected to the rotating block 10. The rotating rod 12 is slidably connected to the fixed block 11.
[0033] A fourth spring 13 is sleeved on the rotating rod 12. The two ends of the fourth spring 13 are connected to the rotating block 10 and the fixed block 11. The rotating rod 12 passes through the fixed block 11.
[0034] In this embodiment, the partition 3 is slidably inserted along the slot 2 on the housing 1, and the power module is placed in the housing 1, thereby facilitating the use of the housing 1. The heat sink 4 is used to facilitate the heat dissipation of the housing 1. When the protective cover 5 needs to be removed from the housing 1 for cleaning, the pull sleeve 20 is slidably moved along the protective sleeve 7. When the sliding sleeve moves, the second spring 21 is compressed, thereby releasing the resistance to the pull rod 24. Under the elastic potential energy of the third spring 25, the pull rod 24 is slidably moved, so that one end of the pull rod 24 is removed from the protective sleeve 7, thereby releasing the fixation of the unlocking sleeve 8. At this time, the unlocking sleeve 8 is rotated, so that the arc groove 23 is rotated away, and the unlocking sleeve 8 can be rotated.
[0035] Please see Figure 3-5 As an embodiment of a power module heat dissipation housing for locking components: a locking component is provided on the protective sleeve 7. The locking component includes a control plate 14 and a guide rod 15. The control plate 14 is mounted on the protective sleeve 7, and the guide rod 15 is slidably connected to the control plate 14. One end of the guide rod 15 is connected to an abutment block 16.
[0036] A first spring 17 is sleeved on the guide rod 15. The two ends of the first spring 17 are connected to the control plate 14 and the abutment block 16. An insertion block 18 is slidably connected on the protective sleeve 7. One end of the insertion block 18 abuts against the abutment block 16. An insertion groove 19 is opened on the protective rod 6. The insertion groove 19 is adapted to the insertion rod.
[0037] A pull sleeve 20 is slidably connected to the protective sleeve 7, a second spring 21 is connected between the pull sleeve 20 and the protective sleeve 7, and a rotating sleeve 22 is rotatably connected to the protective sleeve 7.
[0038] The rotating sleeve 22 has an arc-shaped groove 23 that is adapted to the insertion block 18. A pull rod 24 is slidably connected to the rotating sleeve 22. A third spring 25 is sleeved on the pull rod 24. The two ends of the third spring 25 are connected to the protective sleeve 7 and the rotating sleeve 22. One end of the pull rod 24 is inserted into the protective sleeve 7.
[0039] More specifically, the unlocking sleeve 8 is rotated, causing the rotating block 10 to rotate as well. The rotating rod 12 then rotates along the fixed block 11, compressing the fourth spring 13. As the unlocking sleeve 8 rotates along the protective sleeve 7, the unlocking groove 9 is adjusted to the position of the insertion block 18. The insertion block 18 is moved using the unlocking groove 9, allowing one end of it to move from the protective sleeve 7 and out of the insertion groove 19, thus releasing the fixation on the protective rod 6. The protective sleeve 7 is then slid out along the protective rod 6, releasing the fixation on the protective cover 5. The protective cover 5 can then be slid out along the protective rod 6, allowing operation inside the housing 1. After the operation is complete, the above steps are repeated to fix the protective cover 5.
[0040] In summary, when using or running the overall equipment: slide the partition 3 along the slot 2 on the housing 1 and place the power module in the housing 1 to facilitate the use of the housing 1. The heat sink 4 facilitates the heat dissipation of the housing 1. When the protective cover 5 needs to be removed from the housing 1 for cleaning, slide the pull sleeve 20 along the protective sleeve 7. When the sliding sleeve slides, the second spring 21 is compressed, thereby releasing the resistance to the pull rod 24. Under the elastic potential energy of the third spring 25, the pull rod 24 slides, causing one end of the pull rod 24 to move out of the protective sleeve 7, thereby releasing the fixation of the unlocking sleeve 8. At this time, the unlocking sleeve 8 is rotated, causing the arc groove 23 to rotate away, and the unlocking sleeve 8 can then be rotated.
[0041] Rotate the unlocking sleeve 8, causing the rotating block 10 to rotate. The rotating rod 12 then rotates along the fixed block 11, compressing the fourth spring 13. As the unlocking sleeve 8 rotates along the protective sleeve 7, the unlocking groove 9 is adjusted to the position of the insertion block 18. The insertion block 18 is moved using the unlocking groove 9, allowing one end of the insertion block 18 to move out of the insertion groove 19, thus releasing the fixation on the protective rod 6. The protective sleeve 7 is then slid out along the protective rod 6, releasing the fixation on the protective cover 5. The protective cover 5 can then be slid out along the protective rod 6, allowing operation inside the housing 1. After the operation is complete, the above operation is repeated in reverse to fix the protective cover 5.
[0042] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A heat dissipation housing for a power module, comprising a housing (1), characterized in that: The housing (1) is provided with a partition assembly, which includes a partition groove (2) and a partition plate (3). The partition groove (2) is opened on the housing (1), and the partition plate (3) is slidably connected to the partition groove (2). A heat sink (4) is installed on the housing (1). A protective cover (5) is detachably installed on the housing (1). A disassembly assembly is provided between the housing (1) and the protective cover (5). The disassembly assembly includes a protective rod (6) and a protective sleeve (7). The protective rod (6) is installed on the housing (1), and the protective cover (5) is slidably connected to the protective rod (6). The protective sleeve (7) is detachably installed on the protective rod (6), and an unlocking sleeve (8) is rotatably connected to the protective sleeve (7).
2. The heat dissipation housing for a power module according to claim 1, characterized in that: The unlocking sleeve (8) has an unlocking groove (9), and a rotating block (10) is connected to the unlocking sleeve (8).
3. A heat dissipation housing for a power module according to claim 2, characterized in that: A fixing block (11) is installed on the protective sleeve (7), and a rotating rod (12) is connected to the rotating block (10). The rotating rod (12) is slidably connected to the fixing block (11).
4. A heat dissipation housing for a power module according to claim 3, characterized in that: A fourth spring (13) is sleeved on the rotating rod (12). The two ends of the fourth spring (13) are connected to the rotating block (10) and the fixed block (11). The rotating rod (12) passes through the fixed block (11).
5. A heat dissipation housing for a power module according to claim 4, characterized in that: The protective sleeve (7) is provided with a locking assembly, which includes a control plate (14) and a guide rod (15). The control plate (14) is mounted on the protective sleeve (7), and the guide rod (15) is slidably connected to the control plate (14). One end of the guide rod (15) is connected to an abutment block (16).
6. A heat dissipation housing for a power module according to claim 5, characterized in that: A first spring (17) is sleeved on the guide rod (15). The two ends of the first spring (17) are connected to the control plate (14) and the abutment block (16). An insertion block (18) is slidably connected on the protective sleeve (7). One end of the insertion block (18) abuts against the abutment block (16). An insertion groove (19) is opened on the protective rod (6). The insertion groove (19) is adapted to the insertion rod.
7. A heat dissipation housing for a power module according to claim 6, characterized in that: A pull sleeve (20) is slidably connected to the protective sleeve (7), a second spring (21) is connected between the pull sleeve (20) and the protective sleeve (7), and a rotating sleeve (22) is rotatably connected to the protective sleeve (7).
8. A heat dissipation housing for a power module according to claim 7, characterized in that: The rotating sleeve (22) has an arc-shaped groove (23) that is adapted to the insertion block (18). A pull rod (24) is slidably connected to the rotating sleeve (22). A third spring (25) is sleeved on the pull rod (24). The two ends of the third spring (25) are connected to the protective sleeve (7) and the rotating sleeve (22). One end of the pull rod (24) is inserted into the protective sleeve (7).