A power module connection structure

Abstract

The utility model relates to the field of power module discloses a power module connecting structure, including for bottom support downside casing, both sides of downside casing all rotatoryly connected with a plurality of turnover positioning board, the inside slot of turnover positioning board is connected with both sides of downside casing through torsional spring, the inside fixed connection of downside casing has power module board, the both sides of power module board are equipped with the wiring port, the top of downside casing is pasted with upside casing, the top of upside casing is equipped with a plurality of ventilative slot, both sides of upside casing all are fixedly connected with the support block, the inside rotatoryly connected with the rotary column of support block, the bottom fixedly connected with the buckle inclined piece of rotary column. In the utility model, improve the high efficiency that device carries out the connection, improve the convenient use of device, improve the stability of harness of device to the wiring part, guarantee the work stability of power module.

Description

Technical Field

[0001] This utility model relates to the field of power modules, and in particular to a power module connection structure. Background Technology

[0002] A power module is an integrated power conversion device that converts input electrical energy into a stable voltage or current output required by the equipment. It typically includes circuits for rectification, filtering, transformation, and voltage regulation. Its connection structure design must take electrical safety into account to ensure a stable and efficient power supply in various applications (such as industrial equipment, communication systems, or new energy fields).

[0003] Existing power modules are mostly connected and installed by bolts to connect the upper and lower shells, which is a relatively complicated operation and affects the efficiency of device assembly. At the same time, during the operation of electrical equipment, the module power supply is usually connected by wire harness to achieve power control output. However, the traditional wire harness connection method is prone to loosening when subjected to external force, resulting in poor contact or momentary power outage, thus affecting the power supply stability of the module power supply. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a power module connection structure that improves the efficiency of device connection and enhances the stability of the wiring harness in the wiring section.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A power module connection structure includes a lower housing for bottom support. Multiple flip-positioning plates are rotatably connected to both sides of the lower housing. The inner slots of the flip-positioning plates are connected to the two sides of the lower housing via torsion springs. A power module board is fixedly connected inside the lower housing. Wiring ports are installed on both sides of the power module board. An upper housing is attached to the top of the lower housing. Multiple ventilation slots are opened at the top of the upper housing. Support blocks are fixedly connected to both sides of the upper housing. A rotating column is rotatably connected inside the support block. A snap-fit ​​wedge is fixedly connected to the bottom end of the rotating column. A limit component is installed on the upper outer side of the snap-fit ​​wedge for angle adjustment during disassembly. An installation slot is opened on the inner side of the lower housing. A wiring fixing component is installed inside the installation slot for reinforcement of the wiring connection.

[0007] Furthermore, the wiring fixing assembly includes a pressure frame nested on both sides inside the mounting slot, with positioning bolts inserted on both sides of the pressure frame. Multiple fixing slots are provided on both sides of the mounting slot, and the external parts of the positioning bolts are threaded into the inside of the fixing slots respectively. The two sides of the pressure frame are connected by an elastic fixing plate.

[0008] Furthermore, the limiting component includes a sliding dial located outside the rotating column, with positioning posts fixedly connected to both sides of the bottom end of the dial. The top of the support block has multiple through slots, and the external dimensions of the positioning posts are adapted to the internal dimensions of the through slots.

[0009] Furthermore, a limiting plate is fixedly connected to the top of the rotating column, and the bottom end of the limiting plate is connected to the top of the actuating disc via a compression spring.

[0010] Furthermore, multiple limiting arc grooves are provided on both sides of the lower housing, and limiting rods are fixedly connected to the inner side of the flip positioning plate, with the outer side of the limiting rods slidably connected to the inside of the limiting arc grooves.

[0011] Furthermore, multiple positioning holes are provided on both sides of the bottom end of the upper housing, and the inner dimensions of the positioning holes are adapted to the outer dimensions of the positioning bolts.

[0012] Furthermore, protective soft rubber pads are fixedly connected to the wiring slots on both sides of the lower housing to protect the mating wires.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, the upper housing is aligned with the top of the lower housing, and the snap-fit ​​inclined block is pressed downwards. The flip positioning plate flips over, and when the snap-fit ​​inclined block passes through the maximum straight-line distance of the flip positioning plate, the flip positioning plate springs back to limit the snap-fit ​​inclined block, thus fixing the housing. This improves the efficiency of the device connection and enhances the ease of use of the device.

[0015] In this invention, the lower pressure frame is nested inside the mounting slot, and the positioning bolts pass through the reserved slots of the lower pressure frame and are threaded into the fixing slot, thereby squeezing and fixing the wire harness with the elastic fixing plate, improving the stability of the wire harness in the wiring part of the device, and ensuring the stable operation of the power module. Attached Figure Description

[0016] Figure 1 This is an overall view of a power module connection structure proposed in this utility model;

[0017] Figure 2 This is an internal diagram of a power module connection structure proposed in this utility model;

[0018] Figure 3 This is a diagram of the upper housing mechanism of a power module connection structure proposed in this utility model;

[0019] Figure 4This is an internal view of the support block of a power module connection structure proposed in this utility model;

[0020] Figure 5 This is a diagram of the lower housing mechanism of a power module connection structure proposed in this utility model;

[0021] Figure 6 This is a diagram of a flip-positioning plate mechanism for a power module connection structure proposed in this utility model.

[0022] Legend:

[0023] 1. Lower housing; 2. Limiting arc groove; 3. Limiting rod; 4. Upper housing; 5. Ventilation slot; 6. Limiting piece; 7. Compression spring; 8. Actuating disc; 9. Support block; 10. Snap-on inclined block; 11. Flip positioning plate; 12. Protective soft rubber pad; 13. Mounting slot; 14. Wiring port; 15. Power module board; 16. Positioning bolt; 17. Elastic fixing plate; 18. Lower pressure frame; 19. Positioning hole; 20. Torsion spring; 21. Through slot; 22. Positioning post; 23. Rotating post; 24. Fixing slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 , 2 and Figure 4 This utility model provides an embodiment of a power module connection structure, including a lower housing 1 for bottom support, with multiple flip positioning plates 11 rotatably connected to both sides of the lower housing 1, as shown in the figure. Figure 6The inner groove of the flip positioning plate 11 is connected to both sides of the lower housing 1 via a torsion spring 20. A power module plate 15 is fixedly connected inside the lower housing 1. Wiring ports 14 are installed on both sides of the power module plate 15. The top of the lower housing 1 is attached to the upper housing 4. Multiple ventilation slots 5 are opened at the top of the upper housing 4. Support blocks 9 are fixedly connected to both sides of the upper housing 4. A rotating column 23 is rotatably connected inside the support block 9. A snap-fit ​​inclined block 10 is fixedly connected to the bottom end of the rotating column 23. A limit component is installed on the upper side of the snap-fit ​​inclined block 10 to achieve angle adjustment for disassembly. An installation slot 13 is opened on the inner side of the lower housing 1. The internal wiring fixing assembly is used to reinforce the wiring connection. The limiting assembly includes a toggle disc 8 that slides outside the rotating column 23. Positioning columns 22 are fixedly connected to both sides of the bottom end of the toggle disc 8. The top of the support block 9 is provided with multiple through slots 21. The external dimensions of the positioning columns 22 are adapted to the internal dimensions of the through slots 21. The top of the rotating column 23 is fixedly connected with a limiting piece 6. The bottom end of the limiting piece 6 is connected to the top of the toggle disc 8 through a compression spring 7. Multiple limiting arc grooves 2 are provided on both sides of the lower housing 1. Limiting rods 3 are fixedly connected to the inner side of the flip positioning plate 11. The outer side of the limiting rods 3 is slidably connected to the inside of the limiting arc grooves 2.

[0026] When assembling the power supply housing, first align the top of the upper housing 4 with the top of the lower housing 1, so that the inner side of the snap-fit ​​inclined block 10 fits against both sides of the lower housing 1. Then press the upper housing 4 downwards. At this time, the inclined surface at the bottom of the snap-fit ​​inclined block 10 contacts the inclined surface at the top of the flip positioning plate 11, pushing the flip positioning plate 11 to flip downwards. When the snap-fit ​​inclined block 10 completely passes the flip positioning plate 11, the torsion spring 20 accumulates elastic potential energy due to the downward movement of the flip positioning plate 11, and then drives the flip positioning plate 11 to spring back and flip upwards, thereby locking the top of the snap-fit ​​inclined block 10. At the same time, the limit rod 3 moves along the limit... The sliding of the positioning groove 2 constrains the rebound angle of the flip positioning plate 11, ensuring that the snap-fit ​​inclined block 10 is firmly fixed and the shell connection is completed. When disassembling, the upward push of the push disc 8 causes the positioning pin 22 to disengage from the through slot 21. Rotate the push disc 8 90° until the positioning pin 22 is aligned with the vertical channel of the through slot 21. The compression spring 7 then pushes the positioning pin 22 to re-insert into the through slot 21. At this time, the snap-fit ​​inclined block 10 rotates 90° synchronously to release the lock, and the upper shell 4 can be easily separated. This design significantly improves assembly efficiency and ease of operation, while ensuring the stability and reliability of the connection structure.

[0027] Reference Figure 2 , Figure 3 and Figure 5The wiring fixing assembly includes a pressure frame 18 nested on both sides inside the mounting slot 13. Positioning bolts 16 are inserted on both sides of the pressure frame 18. Multiple fixing slots 24 are opened on both sides of the mounting slot 13. The external of the positioning bolts 16 are threaded into the inside of the fixing slots 24 respectively. The two sides of the pressure frame 18 are connected by an elastic fixing plate 17. Multiple positioning holes 19 are opened on both sides of the bottom end of the upper housing 4. The inner size of the positioning hole 19 is adapted to the outer size of the positioning bolt 16. Protective soft rubber pads 12 are fixedly connected to the wiring slots on both sides of the lower housing 1 to protect the connecting wires.

[0028] During the wire harness installation process, the wiring portion of the wire harness is first arranged inside the lower housing 1, and electrical connections are completed through the wiring ports 14 on both sides of the power module board 15. After the wiring is completed, the pressure frame 18 is accurately embedded into the mounting slot 13. Then, the positioning bolts 16 are passed through the reserved holes on the surface of the pressure frame 18 and screwed into the fixing slot 24 at the bottom. As the positioning bolts 16 are tightened, the pressure frame 18 generates downward pressure, pushing the elastic fixing plate 17 to contact the outer surface of the wire harness. During the continuous pressure process, the elastic fixing plate 17 undergoes controllable deformation, using its elastic restoring force to form a uniform clamping pressure on the wire harness. This dual fixing mechanism of mechanical bolt pressure + elastic plate deformation effectively prevents the wire harness from shifting under vibration or external force, significantly improving the connection stability of the wiring terminals, thereby ensuring the long-term reliable operation of the power module.

[0029] Working principle: The wiring harness connection is placed inside the lower housing 1 and connected through the wiring ports 14 on both sides of the power module board 15. After the wiring harness is connected, the pressure frame 18 is placed inside the mounting slot 13. The positioning bolts 16 are inserted through the pre-drilled holes on the surface of the pressure frame 18, and the bottom ends of the positioning bolts 16 are inserted into the fixing slot 24. The positioning bolts 16 are rotated, thereby generating downward pressure on the pressure frame 18. This causes the bottom end of the elastic fixing plate 17 to contact the outside of the wiring harness. As the pressure frame 18 presses down and the wiring harness is squeezed, the elastic fixing plate 17 deforms. The elastic fixing plate 17 applies a fixing force to the wiring harness, thereby improving the stability of the wiring harness installation. When connecting the power housing, the top of the upper housing 4 is aligned with the top of the lower housing 1, and the inner side of the snap-fit ​​diagonal block 10 is attached to both sides of the lower housing 1, thereby securing the upper housing 4. Pressing down, the bottom inclined surface of the buckle block 10 contacts the top inclined surface of the flip positioning plate 11, thereby flipping the flip positioning plate 11. When the buckle block 10 passes through the straight distance of the flip positioning plate 11, the torsion spring 20 stores potential energy due to the downward flipping of the flip positioning plate 11, causing the flip positioning plate 11 to flip, thereby restricting the top of the buckle block 10. The limiting rod 3 slides inside the limiting arc groove 2 and limits the upward flipping angle of the flip positioning plate 11, fixing the buckle block 10 and completing the connection between the housings. When disassembling, the actuating disc 8 is lifted to the upper side, and the positioning pin 22 disengages from the through slot 21. The actuating disc 8 is rotated. When the positioning pin 22 rotates to the through slot 21 of the vertical part, the positioning pin 22 is pushed by the compression spring 7 and inserted into the through slot 21 to complete the 90° rotation of the buckle block 10, thereby lifting the upper housing 4 upward to complete the disassembly.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A power module connection structure, characterized in that, The system includes a lower housing (1) for bottom support, with multiple flip positioning plates (11) rotatably connected to both sides of the lower housing (1). The inner slots of the flip positioning plates (11) are connected to both sides of the lower housing (1) via torsion springs (20). A power module board (15) is fixedly connected inside the lower housing (1), and wiring ports (14) are installed on both sides of the power module board (15). An upper housing (4) is attached to the top of the lower housing (1), and multiple openings are provided on the top of the upper housing (4). The upper housing (4) has a ventilation slot (5), and both sides of the upper housing (4) are fixedly connected to support blocks (9). The support blocks (9) are rotatably connected to a rotating column (23). The bottom end of the rotating column (23) is fixedly connected to a snap-fit ​​inclined block (10). The upper side of the snap-fit ​​inclined block (10) is equipped with a limit component to achieve angle adjustment for disassembly. The lower housing (1) has an installation slot (13) on its inner side. The installation slot (13) is equipped with a wiring fixing component to achieve reinforcement of wiring connection.

2. The power module connection structure according to claim 1, characterized in that: The wiring fixing assembly includes a pressure frame (18) nested on both sides inside the mounting slot (13). Positioning bolts (16) are inserted on both sides of the pressure frame (18). Multiple fixing slots (24) are opened on both sides of the mounting slot (13). The external of the positioning bolts (16) are respectively threaded into the inside of the fixing slots (24). The two sides of the pressure frame (18) are connected by an elastic fixing plate (17).

3. The power module connection structure according to claim 1, characterized in that: The limiting component includes a sliding disc (8) located outside the rotating column (23). Positioning columns (22) are fixedly connected to both sides of the bottom end of the sliding disc (8). The top of the support block (9) is provided with multiple through slots (21). The external dimensions of the positioning column (22) are adapted to the internal dimensions of the through slots (21).

4. The power module connection structure according to claim 1, characterized in that: The top end of the rotating column (23) is fixedly connected to a limiting piece (6), and the bottom end of the limiting piece (6) is connected to the top end of the actuating disc (8) through a compression spring (7).

5. The power module connection structure according to claim 1, characterized in that: Multiple limiting arc grooves (2) are provided on both sides of the lower housing (1), and limiting rods (3) are fixedly connected to the inner side of the flip positioning plate (11). The outer side of the limiting rods (3) is slidably connected to the inside of the limiting arc grooves (2).

6. The power module connection structure according to claim 1, characterized in that: Multiple positioning holes (19) are provided on both sides of the bottom end of the upper housing (4), and the inner dimensions of the positioning holes (19) are adapted to the outer dimensions of the positioning bolts (16).

7. The power module connection structure according to claim 1, characterized in that: The wiring slots on both sides of the lower housing (1) are fixedly connected with protective soft rubber pads (12) to protect the mating wires.

Images