Integrated power module structure

Abstract

The invention provides an integrated power module structure. The integrated power module structure comprises a base, a plurality of mounting grooves are formed in the bottom of the base, and heat dissipation assemblies are fixed in the grooves; a PBT insulation isolation retaining wall is arranged in the middle of the inner wall of the base, and a copper alloy shielding cover is arranged on the top. A plurality of first clamping grooves are formed in the top of the inner wall of the base, and second clamping grooves located below the first clamping grooves are formed in the four corners; the top cover is arranged above the base, the top of the top cover is rotationally connected with the rotating handle, and the rotating handle drives the first longitudinal plate through the first rotating shaft, the first connecting plate and the second rotating shaft and is matched with the second longitudinal plate, the first transverse plate and the second transverse plate to form a linkage mechanism. The bottoms of the longitudinal plates and the transverse plates are clamped into the first clamping grooves through the first fixing assemblies, and the four corners of the copper alloy shielding case are clamped into the second clamping grooves through the second fixing assemblies at the bottoms of the connecting assemblies. The integrated power module structure has the advantages that synchronous locking or unlocking of the top cover and the shielding case is achieved, the structure is compact, sealing is reliable, and maintenance is convenient.

Description

Technical Field

[0001] This invention relates to the field of power modules, and more particularly to an integrated power module structure. Background Technology

[0002] In modern electronic equipment, communication systems, industrial control and new energy fields, power modules are the core components for energy conversion and power supply. Their performance, size, reliability and integration directly affect the stability and miniaturization level of the whole system.

[0003] Existing integrated power modules generally suffer from the following technical bottlenecks: First, in terms of thermal management, most products still rely on passive heat dissipation or forced air cooling. However, in order to take into account environmental protection (such as dust and water resistance), heat dissipation openings are often sacrificed, resulting in internal heat accumulation and excessive local temperature rise, which seriously restricts the improvement of power density. In addition, in terms of manufacturing and assembly processes, multi-point screw locking is not only inefficient and inconsistent, but also prone to insufficient compression of the sealing ring or poor shielding contact due to human error. Although some products have attempted to introduce quick-release structures, it is difficult to achieve coordinated control of top cover sealing, shielding cover clamping and internal positioning at the same time, resulting in insufficient reliability.

[0004] Therefore, it is necessary to provide a new integrated power module structure to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides an integrated power module structure.

[0006] The integrated power module structure provided by this invention includes a base. Multiple mounting slots are equidistantly arranged on the bottom of the base. Heat dissipation components are fixedly installed on the inner walls of the mounting slots. A PBT insulating barrier is fixedly connected to the center of the inner wall of the base. A copper alloy shielding cover is provided on the top of the PBT insulating barrier. Multiple slot 1 are formed on the top of the inner wall of the base. Slot 2 is formed at each of the four corners of the inner wall of the base, with slot 2 located below slot 1. A top cover is provided on the top of the base. A rotating shaft 1 is rotatably connected to the top of the top cover. A handle is fixedly connected to one end of the rotating shaft 1, and the other end of the rotating shaft 1 passes through the bottom of the top cover and is fixedly connected to a connecting plate 1. One end of the base is rotatably connected to a rotating shaft, and the top of the rotating shaft is fixedly connected to a vertical plate. The vertical plate is located on one side of the top inner wall of the base, and the other side of the top inner wall of the base is provided with a vertical plate. Both ends of the vertical plate and the vertical plate are rotatably connected to a horizontal plate and a horizontal plate. The bottom of the vertical plate, the vertical plate, and the horizontal plate are fixedly connected to multiple fixing components. One end of the outer wall of the multiple fixing components is engaged with the inner wall of the slot. The bottom of each of the four connecting components is fixedly connected to a fixing component. The bottom of the four fixing components is fixedly connected to the top four corners of the copper alloy shield, and one end of the outer wall of the four fixing components is engaged with the inner wall of the slot.

[0007] Preferably, the connecting assembly includes a rotating rod one, a mounting plate, a rotating rod two, and a rotating rod three. The inner wall of one end of the vertical plate one is rotatably connected to the outer wall of one end of the rotating rod one. The other end of the rotating rod one is fixedly connected to the top end of the mounting plate. The other end of the top of the mounting plate is fixedly connected to one end of the rotating rod two. The outer wall of the other end of the rotating rod two is rotatably connected to the inner wall of one end of the horizontal plate one. The top of the mounting plate is fixedly connected to one end of the rotating rod three. The other end of the rotating rod three is rotatably connected to the bottom of the top cover.

[0008] Preferably, the fixing component one includes guide post two, connecting plate three, sliding groove two, rotating rod five, and locking block two. Multiple guide posts two are fixedly connected to the bottom of the longitudinal plate one, longitudinal plate two, and transverse plate one. The outer wall of the guide post two is slidably connected to the inner wall of the sliding groove two opened at one end of the connecting plate three. The inner wall of the other end of the connecting plate three is fixedly connected to the outer wall of one end of the rotating rod five. The outer wall of the other end of the rotating rod five is fixedly connected to the inner wall of one end of the locking block two. The outer wall of the other end of the locking block two is engaged with the locking groove one.

[0009] Preferably, the fixing component two includes a rotating rod four, a locking block one, a connecting plate two, a sliding groove one, and a guide post one. The bottom of the mounting plate is fixedly connected to the top of the guide post one. The outer wall of the guide post one is slidably connected to the inner wall of the sliding groove one opened at one end of the connecting plate two. The inner wall of the other end of the connecting plate two is fixedly connected to the outer wall of one end of the rotating rod four. The outer wall of the other end of the rotating rod four is fixedly connected to the inner wall of one end of the locking block one. The outer wall of the other end of the locking block one is engaged with the inner wall of the locking groove two.

[0010] Preferably, the base is made of aluminum alloy through die casting, one end of the base is fixedly connected to a terminal block, the top mating surface of the base is provided with an annular sealing groove, the annular sealing groove is embedded with a fluororubber sealing ring, and conductive foam is integrated at the joint, and the internal cavity of the base is filled with silicone potting compound.

[0011] Preferably, the PBT insulating barrier divides the base into an upper layer and a lower layer. The lower layer is a power conversion substrate, and high-heat-generating devices such as a planar transformer and a rectifier bridge are installed on the bottom of the inner wall of the base. The upper layer is a control circuit board, and a PWM controller, a communication interface, and protection logic are installed on the top of the PBT insulating barrier. The upper and lower layers are electrically interconnected through a board-to-board connector.

[0012] Preferably, the bottom of the inner wall of the base is provided with a ventilation grille, and a microporous membrane is fixedly connected to the top of the ventilation grille. The heat dissipation component includes a cooling fan, cooling fins and a fixing member. The top of the inner wall of the mounting groove is provided with cooling fins. The bottom of the cooling fins is fixedly connected to the top of the cooling fan by the fixing member, and the bottom of the fixing member is fixedly connected to the bottom of the base.

[0013] Compared with related technologies, the integrated power module structure provided by this invention has the following beneficial effects: the rotation of the throttle drives the movement of the first rotating shaft, the first connecting plate, the second rotating shaft, and the first longitudinal plate, so that the four-bar linkage composed of the first longitudinal plate, the second longitudinal plate, the first transverse plate, and the second transverse plate presses down synchronously, which at the same time acts on: the first top cover fixing component snaps into the first slot (for fixing the top cover) and the second shielding cover fixing component snaps into the second slot (for pressing the copper alloy shielding cover); avoiding the problems of uneven force, shielding cover warping, and poor contact caused by tightening screws one by one in the traditional method, ensuring that the top cover and the shielding cover fit together with the base simultaneously, evenly, and reliably, improving the sealing performance and electromagnetic continuity. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the integrated power module structure provided by the present invention; Figure 2 for Figure 1 The diagram shows the internal structure of the power module. Figure 3for Figure 1 The diagram shows the structure at the bottom of the power module. Figure 4 for Figure 1 The diagram shows the structure of the heat dissipation component. Figure 5 for Figure 1 The diagram shows the structure of the fixing component. Figure 6 for Figure 1 The enlarged view at point A shown is a structural schematic diagram; Figure 7 for Figure 1 A structural schematic diagram of the enlarged view at point B shown; The diagram is labeled as follows: 1. Base; 2. Terminal block; 3. Top cover; 4. Conductive foam; 5. Silicone potting compound; 6. Fluororubber sealing ring; 7. PBT insulating barrier; 8. Slot 1; 9. Slot 2; 10. Cooling fan; 11. Heat dissipation fins; 12. Fixing component; 13. Copper alloy shielding cover; 14. Rotary handle; 15. Rotating shaft 1; 16. Connecting plate 1; 17. Vertical plate 1; 18. Rotating rod 1; 19. Mounting plate; 20. Rotating rod 2; 21. Rotating rod 3; 22. Horizontal plate 1; 23. Vertical plate 2; 24. Horizontal plate 2; 25. Rotating rod 4; 26. Locking block 1; 27. Connecting plate 2; 28. Slide groove 1; 29. ​​Guide post 1; 30. Guide post 2; 31. Connecting plate 3; 32. Slide groove 2; 33. Rotating rod 5; 34. Locking block 2. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 as well as Figure 7 ,in, Figure 1 A schematic diagram of a preferred embodiment of the integrated power module structure provided by the present invention; Figure 2 for Figure 1 The diagram shows the internal structure of the power module. Figure 3 for Figure 1 The diagram shows the structure at the bottom of the power module. Figure 4 for Figure 1 The diagram shows the structure of the heat dissipation component. Figure 5 for Figure 1 The diagram shows the structure of the fixing component. Figure 6 for Figure 1 The enlarged view at point A shown is a structural schematic diagram; Figure 7 for Figure 1The diagram shows the structure of the enlarged view at point B.

[0017] In the specific implementation process, such as Figure 1-4 As shown, the present invention provides an integrated power module structure including a base 1. A ventilated grille is formed on the bottom inner wall of the base 1, and a microporous membrane is fixedly connected to the top of the ventilated grille. Multiple mounting slots are equidistantly arranged on the bottom of the base 1, and heat dissipation components are fixedly mounted on the inner walls of the multiple mounting slots. The heat dissipation components include a cooling fan 10, cooling fins 11, and a fixing member 12. Cooling fins 11 are provided on the top of the inner wall of the mounting slot, and the bottom of the cooling fins 11 is fixedly connected to the top of the cooling fan 10 via the fixing member 12. The bottom of the fixing member 12 is fixedly connected to the bottom of the base 1. The base 1 is an integrated die-cast aluminum alloy. One end of the base 1 is fixedly connected to a terminal block 2. The top surface of the base 1 is provided with an annular sealing groove, and a fluororubber sealing ring 6 is embedded in the annular sealing groove. Conductive foam 4 is integrated at the joint. The internal cavity of the base 1 is filled with silicone potting compound 5. The PBT insulating barrier 7 divides the base 1 into an upper layer and a lower layer. The lower layer is a power conversion substrate. The bottom of the inner wall of the base 1 is equipped with high-heat-generating devices such as a planar transformer and a rectifier bridge. The upper layer is a control circuit board. The top of the PBT insulating barrier 7 is equipped with a PWM controller, a communication interface and protection logic. The upper and lower layers are electrically interconnected through a board-to-board connector. It should be noted that the silicone potting compound 5 is only filled in the lower power area of ​​the base 1, and the potting height is lower than the plane where the ventilated grille is located; the microporous membrane is a polytetrafluoroethylene waterproof and breathable membrane with a pore size ≤0.2μm, which can block liquid water and dust while allowing gas exchange; the heat dissipation fins 11 extend upward and are embedded inside the base 1, directly adhering to the bottom of the high-heat-generating device to form an 'embedded air-cooled heat sink', and the fan 10 forces air out from the bottom to form a directional airflow channel; the silicone potting compound 5 only covers the lower power conversion substrate and its solder joint area, while the upper control circuit board area remains uncoated so that it can be inspected or upgraded by opening the top cover; the bottom of the PBT insulating isolation barrier 7 is provided with a positioning boss, which is embedded in the corresponding groove on the inner wall of the base 1; the conductive foam 4 is arranged along the outside of the annular sealing groove, and when the top cover presses the sealing ring 6, the conductive foam 4 is compressed and forms a 360° electromagnetic shielding continuous surface with the inner surface of the top cover and the base 1.

[0018] In the specific implementation process, refer to Figure 5-7As shown, this invention provides an integrated power module structure. A PBT insulating barrier 7 is fixedly connected to the middle of the inner wall of the base 1. A copper alloy shielding cover 13 is provided on the top of the PBT insulating barrier 7. Multiple slots 8 are provided on the top of the inner wall of the base 1. Slots 9 are provided at the four corners of the inner wall of the base 1. Slots 9 are located at the lower end of slots 8. A top cover 3 is provided on the top of the base 1. A rotating shaft 15 is rotatably connected to the top of the top cover 3. A handle 14 is fixedly connected to one end of the rotating shaft 15. The other end of the rotating shaft 15 passes through the bottom of the top cover 3 and is fixedly connected to a connecting plate 16. A rotating shaft 2 is rotatably connected to one end of the connecting plate 16. A vertical plate 17 is fixedly connected to the top of the rotating shaft 2. The vertical plate 17 is located on the top of the inner wall of the base 1. On one side of the base 1, a vertical plate 23 is provided on the other side of the inner wall top. Both ends of the vertical plate 17 and the vertical plate 23 are rotatably connected to a horizontal plate 22 and a horizontal plate 24 via connecting components. Multiple fixing components 1 are fixedly connected to the bottom of the vertical plate 17, the vertical plate 23, and the horizontal plate 22. One end of the outer wall of each fixing component 1 is engaged with the inner wall of the slot 8. Fixing components 2 are fixedly connected to the bottom of each of the four connecting components. The bottoms of the four fixing components 2 are fixedly connected to the top four corners of the copper alloy shielding cover 13. One end of the outer wall of each fixing component 2 is engaged with the inner wall of the slot 9. The connecting components include a rotating rod 18, a mounting plate 19, a rotating rod 20, and a rotating rod 31. One end of the inner wall of the vertical plate 17 is rotatably connected to... One end of the rotating rod 18 is fixedly connected to the outer wall of the rotating rod 18, and the other end of the rotating rod 18 is fixedly connected to the top end of the mounting plate 19. The other end of the top of the mounting plate 19 is fixedly connected to one end of the rotating rod 20. The outer wall of the other end of the rotating rod 20 is rotatably connected to the inner wall of one end of the horizontal plate 12. The top of the mounting plate 19 is fixedly connected to one end of the rotating rod 31, and the other end of the rotating rod 31 is rotatably connected to the bottom of the top cover 3. The fixing assembly 1 includes guide post 20, connecting plate 31, slide groove 22, rotating rod 53, and locking block 24. Multiple guide posts 20 are fixedly connected to the bottom of the vertical plate 17, the vertical plate 23, and the horizontal plate 12. The outer wall of the guide post 20 is slidably connected to the inner wall of the slide groove 22 opened at one end of the connecting plate 31. The other end of the inner wall is fixedly connected to the outer wall of one end of the rotating rod 33. The other end of the outer wall of the rotating rod 33 is fixedly connected to the inner wall of one end of the locking block 34. The other end of the outer wall of the locking block 34 is engaged with the locking groove 8. The fixing component 2 includes the rotating rod 25, the locking block 26, the connecting plate 27, the sliding groove 28, and the guide post 29. The bottom of the mounting plate 19 is fixedly connected to the top of the guide post 29. The outer wall of the guide post 29 is slidably connected to the inner wall of the sliding groove 28 opened at one end of the connecting plate 27. The other end of the inner wall of the connecting plate 27 is fixedly connected to the outer wall of one end of the rotating rod 25. The other end of the outer wall of the rotating rod 25 is fixedly connected to the inner wall of one end of the locking block 26. The other end of the outer wall of the locking block 26 is engaged with the inner wall of the locking groove 9. It should be noted that the bottom of the copper alloy shield 13 is equipped with a conductive rubber pad that contacts the exposed metal area of ​​the inner wall of the base 1; the axes of each rotating pair (rotating rod 18 to rotating rod 33) are parallel to each other and a 0.2–0.5 mm assembly gap is reserved; the length of the slide is greater than 1.2 times the stroke of the guide post to ensure that the mechanism still has degrees of freedom in the extreme position and avoids dead points in movement; the wedge-shaped inclined surface is used between the second locking block 34 and the first locking slot 8, and the first locking block 26 and the second locking slot 9, which produces a self-locking effect in the locked state; the copper alloy shield 13 has a sunken structure, and its inner surface maintains a safety distance of ≥2 mm from the highest component on the control circuit board.

[0019] The working principle provided by this invention is as follows: The power conversion substrate (including high heat generation devices such as planar transformer and rectifier bridge) is installed on the bottom of the inner wall of the base 1. The control circuit board (including PWM controller, communication interface, etc.) is arranged on the top of the PBT insulating barrier 7, and the upper and lower layers are electrically interconnected through the board-to-board connector. The lower layer area of ​​the base 1 is filled with silicone potting compound 5, which is lower than the venting grid, and the upper control area is kept without glue. Rotating the handle 14 (e.g., turning it 90° clockwise) causes the rotating shaft 15 to rotate synchronously. The rotating shaft 15 drives the connecting plate 16 to swing, which in turn pushes the longitudinal plate 17 to move inward through the rotating shaft 2. The longitudinal plate 17 is linked to the longitudinal plate 23 and the transverse plate 24 through the connecting components (rotating rod 18, mounting plate 19, rotating rod 20, and transverse plate 22), forming a synchronous centripetal motion on all four sides. The guide post 20 slides in the slide groove 22, causing the connecting plate 31 to translate. The rotating rod 5 33 drives the locking block 2 34 to extend outward. The top cover 3 is locked in a multi-point circumferential locking mechanism by inserting it into the slot 8 at the top of the inner wall of the base 1; the mounting plate 19 drives the guide post 29 to slide in the slide groove 28, and the rotating rod 25 pushes the locking block 26 outward to insert into the slot 9 at the four corners of the base 1, pressing and positioning the four corners of the copper alloy shielding cover 13. As the top cover 3 is pressed down, the fluororubber sealing ring 6 is compressed, and the conductive foam 4 is also compressed to form a 360° electromagnetic shielding continuous surface. The wedge-shaped inclined surface of the locking block and the slot produces a self-locking effect to prevent vibration from loosening. When the cooling fan 10 starts, it draws air upward from the bottom of the base 1. The airflow passes through the heat dissipation fins 11 (embedded with high-heat-generating components) to remove heat. The hot air is discharged from the inside of the module through the polytetrafluoroethylene microporous membrane, achieving air pressure balance and preventing water and dust from entering. If maintenance is required, rotate the handle 14 in the reverse direction (counterclockwise). The linkage mechanism moves in the reverse direction, and the second locking block 34 and the first locking block 26 retract synchronously, disengaging from the first locking slot 8 and the second locking slot 9. The top cover 3 and the copper alloy shielding cover 13 are released simultaneously, allowing the entire assembly to be lifted. Operators can directly inspect or replace the upper control circuit board without disassembling the lower potting section.

[0020] This integrated power module structure has the following advantages: 1. By rotating the handle 14, the linkage mechanism (longitudinal plate, horizontal plate, connecting rod assembly) automatically completes the synchronous pressing and positioning of the top cover 3 and the copper alloy shield 13, avoiding uneven force, sealing failure or shield gaps caused by tightening screws one by one in the traditional method. The operation is simple and requires no tools. Locking or opening can be completed by rotating 90°, which greatly improves the efficiency of on-site installation and maintenance. The four corners and circumferential multi-point locking provides strong resistance to vibration and impact. 2. The fluororubber sealing ring 6, conductive foam 4, copper alloy shielding cover 13, and grounding conductive rubber pad constitute a three-in-one structure of "sealing, shielding, and grounding". When the top cover 3 is pressed down, the fluororubber sealing ring 6 is compressed to form a waterproof and dustproof barrier. After the conductive foam 4 is compressed, it forms a 360° continuous electromagnetic shielding surface, which effectively suppresses high-frequency radiation interference. The copper alloy shielding cover 13 is directly connected to the metal of the base 1 through the conductive rubber pad to ensure a low-impedance grounding path. 3. The heat dissipation fins 11 are embedded upward into the base 1 and directly attached to the heat-generating device. The fan 10 draws air from the bottom. The ventilation grille is equipped with a microporous membrane to form a directional airflow channel with low thermal resistance and high heat dissipation efficiency. The microporous membrane allows internal gas exchange, prevents the accumulation of negative or positive pressure, and blocks water vapor and dust.

[0021] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0022] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An integrated power module structure, comprising a base (1), wherein a plurality of mounting slots are equidistantly arranged on the bottom of the base (1), heat dissipation components are fixedly installed on the inner walls of the plurality of mounting slots, and a PBT insulating barrier (7) is fixedly connected to the middle of the inner wall of the base (1), characterized in that, The top of the PBT insulating barrier (7) is provided with a copper alloy shield (13). The top of the inner wall of the base (1) is provided with multiple slots (8). The four corners of the inner wall of the base (1) are provided with slots (9). The slots (9) are located at the lower end of the slots (8). The top of the base (1) is provided with a top cover (3). The top of the top cover (3) is rotatably connected to a rotating shaft (15). One end of the rotating shaft (15) is fixedly connected to a handle (14). The other end of the rotating shaft (15) passes through the bottom of the top cover (3) and is fixedly connected to a connecting plate (16). One end of the connecting plate (16) is rotatably connected to a rotating shaft (2). The top of the rotating shaft (2) is fixedly connected to a longitudinal plate (17). (17) is located on the top side of the inner wall of the base (1). The other side of the top of the inner wall of the base (1) is provided with a vertical plate two (23). Both ends of the vertical plate one (17) and the vertical plate two (23) are rotatably connected to a horizontal plate one (22) and a horizontal plate two (24) through a connecting component. The bottom of the vertical plate one (17), the vertical plate two (23) and the horizontal plate one (22) are fixedly connected to multiple fixing components one. One end of the outer wall of the multiple fixing components one is engaged and connected to the inner wall of the slot one (8). The bottom of the four connecting components is fixedly connected to a fixing component two. The bottom of the four fixing components two is fixedly connected to the top four corners of the copper alloy shield (13). One end of the outer wall of the four fixing components two is engaged and connected to the inner wall of the slot two (9).

2. The integrated power module structure according to claim 1, characterized in that, The connecting assembly includes a rotating rod one (18), a mounting plate (19), a rotating rod two (20), and a rotating rod three (21). The inner wall of one end of the vertical plate one (17) is rotatably connected to the outer wall of one end of the rotating rod one (18). The other end of the rotating rod one (18) is fixedly connected to the top end of the mounting plate (19). The other end of the top of the mounting plate (19) is fixedly connected to one end of the rotating rod two (20). The outer wall of the other end of the rotating rod two (20) is rotatably connected to the inner wall of one end of the horizontal plate one (22). The top of the mounting plate (19) is fixedly connected to one end of the rotating rod three (21). The other end of the rotating rod three (21) is rotatably connected to the bottom of the top cover (3).

3. The integrated power module structure according to claim 1, characterized in that, The fixing component includes guide post 2 (30), connecting plate 3 (31), sliding groove 2 (32), rotating rod 5 (33) and locking block 2 (34). Multiple guide posts 2 (30) are fixedly connected to the bottom of the longitudinal plate 1 (17), longitudinal plate 2 (23) and transverse plate 1 (22). The outer wall of the guide post 2 (30) is slidably connected to the inner wall of the sliding groove 2 (32) opened at one end of the connecting plate 3 (31). The inner wall of the other end of the connecting plate 3 (31) is fixedly connected to the outer wall of one end of the rotating rod 5 (33). The outer wall of the other end of the rotating rod 5 (33) is fixedly connected to the inner wall of one end of the locking block 2 (34). The outer wall of the other end of the locking block 2 (34) is engaged with the locking groove 1 (8).

4. The integrated power module structure according to claim 2, characterized in that, The second fixing component includes a rotating rod four (25), a locking block one (26), a connecting plate two (27), a sliding groove one (28), and a guide post one (29). The bottom of the mounting plate (19) is fixedly connected to the top of the guide post one (29). The outer wall of the guide post one (29) is slidably connected to the inner wall of the sliding groove one (28) opened at one end of the connecting plate two (27). The inner wall of the other end of the connecting plate two (27) is fixedly connected to the outer wall of one end of the rotating rod four (25). The outer wall of the other end of the rotating rod four (25) is fixedly connected to the inner wall of one end of the locking block one (26). The outer wall of the other end of the locking block one (26) is engaged with the inner wall of the locking groove two (9).

5. The integrated power module structure according to claim 1, characterized in that, The base (1) is an integral die-cast aluminum alloy material. One end of the base (1) is fixedly connected to a terminal block (2). The top surface of the base (1) is provided with an annular sealing groove. The annular sealing groove is inlaid with a fluororubber sealing ring (6) and conductive foam (4) is integrated at the joint. The internal cavity of the base (1) is filled with silicone potting compound (5).

6. The integrated power module structure according to claim 1, characterized in that, The PBT insulating barrier (7) divides the base (1) into an upper layer and a lower layer. The lower layer is a power conversion substrate. The bottom of the inner wall of the base (1) is equipped with high-heat-generating devices such as a planar transformer and a rectifier bridge. The upper layer is a control circuit board. The top of the PBT insulating barrier (7) is equipped with a PWM controller, a communication interface and protection logic. The upper and lower layers are electrically interconnected through a board-to-board connector.

7. The integrated power module structure according to claim 1, characterized in that, The bottom of the inner wall of the base (1) is provided with a ventilation grille, and a microporous membrane is fixedly connected to the top of the ventilation grille. The heat dissipation component includes a cooling fan (10), a heat dissipation fin (11) and a fixing member (12). The top of the inner wall of the mounting groove is provided with a heat dissipation fin (11). The bottom of the heat dissipation fin (11) is fixedly connected to the top of the cooling fan (10) by the fixing member (12). The bottom of the fixing member (12) is fixedly connected to the bottom of the base (1).

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