A high-efficiency, high-power-density power converter

Abstract

This utility model relates to the field of power converter technology, and in particular to a high-efficiency, high-power-density power converter, comprising a converter body, a first heat dissipation fin welded to the top of the converter body, a second heat dissipation fin welded to the bottom of the converter body, and a first cooling fan bolted to the top of the converter body. This utility model uses a mounting plate to install the device. After installation, the required electrical plug is inserted into the connector, and then the threaded rod is rotated to move the clamping plate up and down, causing the bottom of the clamping plate to contact the first protective shell. During the operation of the converter body, vibration occurs, and heat is generated. This heat is conducted through the first and second heat dissipation fins. Simultaneously, the rotation of the first cooling fan accelerates the airflow inside the converter body, and also drives the airflow between the first heat dissipation fins.

Description

Technical Field

[0001] This utility model relates to the field of power converter technology, specifically a high-efficiency, high-power-density power converter. Background Technology

[0002] A power converter is an electronic device that converts electrical energy from one form to another. It can convert the energy of the output current of a power source into another form of current, such as the conversion between AC and DC power sources, or the conversion of voltage and current into the required form.

[0003] Chinese patent CN221687805U discloses a modular power converter, including a base and a housing mounted on top of the base. It allows for electrical connection between external devices and the internal power conversion circuit board by plugging in different interface boards, enabling modular installation and production to meet various needs. However, this device relies solely on natural airflow for heat dissipation, generating significant heat during high-power operation. High temperatures alter the properties of semiconductor materials, increasing conduction and switching losses, exacerbating leakage current, and ultimately reducing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency, high-power-density power converter with good heat dissipation, which can avoid the problem of reduced efficiency caused by increased conduction and switching losses.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-efficiency, high-power-density power converter includes a converter body, a first heat dissipation fin welded to the top of the converter body, a second heat dissipation fin welded to the bottom of the converter body, and a first cooling fan connected to the top of the converter body by bolts.

[0007] Wiring heads are installed on both sides of the converter body. A first protective shell and a second protective shell are welded to both sides of the converter body. An L-shaped plate is welded to the top of the second protective shell. A threaded rod is provided through the top of the L-shaped plate. A clamping plate is rotatably connected to the bottom of the threaded rod.

[0008] Mounting blocks are welded to the bottom of both sides of the converter body. A positioning frame is bolted to the opposite side of the mounting block, and a fixing frame is welded to the opposite side of the positioning frame. A second cooling fan is bolted to the inner cavity of the fixing frame. A fixing plate is welded to the top of the mounting block, and an anti-vibration component is provided at the bottom of the fixing plate.

[0009] Preferably, the seismic component includes a spring, the top of which is welded to a fixed plate, and a connecting plate is welded to the bottom of the spring; a support column is welded to the bottom of the connecting plate, the bottom of which extends through to the bottom of the mounting block; a damper is bolted to the surface of the fixed plate; and the bottom of the damper is bolted to the connecting plate.

[0010] Preferably, the surface of the support column is slidably connected to the mounting block, and the bottom of the support column is bolted to a mounting plate.

[0011] Preferably, the surface of the fixing frame is bolted with a filter screen, and the opposite side of the fixing frame is slidably connected to the second heat dissipation fin.

[0012] Preferably, the top of the first heat dissipation fin is provided with a mounting groove, and the inner cavity of the mounting groove is connected to a protective cover by bolts.

[0013] Preferably, the top of the first protective shell has a first slot, and the bottom of the card plate has a second slot.

[0014] Preferably, the top of the card plate is bolted to a guide bolt, the top of the guide bolt extending through to the top of the L-shaped plate and slidably connected to the L-shaped plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. During the operation of the converter body, heat is generated. The heat is conducted through the first heat dissipation fins and the second heat dissipation fins. At the same time, the rotation of the first cooling fan accelerates the airflow inside the converter body, and drives the airflow between the first heat dissipation fins, thus accelerating the heat dissipation inside the converter body. The rotation of the two second cooling fans forms an air duct to accelerate the airflow between the second heat dissipation fins, thereby accelerating the heat dissipation of the second heat dissipation fins and thus assisting in the heat dissipation inside the converter body.

[0017] 2. This utility model uses an mounting plate to install the device. After installation, the plug of the wire to be connected is inserted into the connector. Then, by rotating the threaded rod, the clamping plate moves up and down, so that the bottom of the clamping plate contacts the first protective shell. During the operation of the converter body, vibration will occur. The converter body drives the mounting block and the fixing plate to move up and down. The fixing plate drives the spring to move in extension and retraction to buffer the vibration. The damper performs damping motion to make the converter body and the mounting block quickly return to a stable state. Attached Figure Description

[0018] Figure 1 This is an isometric view of the structure of this utility model;

[0019] Figure 2 This is a perspective view of the converter body and the fixing plate of this utility model;

[0020] Figure 3 This is a perspective view of the fixing frame and the second cooling fan of this utility model;

[0021] Figure 4 This is a perspective view of the mounting plate and connecting plate of this utility model.

[0022] In the diagram: 1. Converter body; 2. First heat sink fin; 3. First cooling fan; 4. Mounting plate; 5. Wiring connector; 6. First protective shell; 7. Second protective shell; 8. L-shaped plate; 9. Threaded rod; 10. Clamping plate; 11. Second heat sink fin; 12. Fixing frame; 13. Positioning frame; 14. Second cooling fan; 15. Support column; 16. Mounting block; 17. Fixing plate; 18. Spring; 19. Damper; 20. Connecting plate; 21. Anti-vibration component. Detailed Implementation

[0023] Please see Figures 1-4 A high-efficiency, high-power-density power converter includes a converter body 1, a first heat dissipation fin 2 welded to the top of the converter body 1, a second heat dissipation fin 11 welded to the bottom of the converter body 1, and a first cooling fan 3 connected to the top of the converter body 1 by bolts.

[0024] Both sides of the converter body 1 are equipped with terminal blocks 5. Both sides of the converter body 1 are welded with a first protective shell 6 and a second protective shell 7. An L-shaped plate 8 is welded to the top of the second protective shell 7. A threaded rod 9 is provided through the top of the L-shaped plate 8. A clamping plate 10 is rotatably connected to the bottom of the threaded rod 9.

[0025] Mounting blocks 16 are welded to the bottom of both sides of the converter body 1. A positioning frame 13 is bolted to the opposite side of the mounting block 16. A fixing frame 12 is welded to the opposite side of the positioning frame 13. A second cooling fan 14 is bolted to the inner cavity of the fixing frame 12. A fixing plate 17 is welded to the top of the mounting block 16. An anti-vibration component 21 is provided at the bottom of the fixing plate 17.

[0026] Please see Figure 1 and Figure 4 The anti-vibration component 21 includes a spring 18, the top of which is welded to the fixed plate 17, and a connecting plate 20 is welded to the bottom of the spring 18. By setting the spring 18, it can play a buffering role, making the force generated by vibration change smoothly and effectively preventing the transformer body 1 from being damaged by impact. A support column 15 is welded to the bottom of the connecting plate 20, and the bottom of the support column 15 extends to the bottom of the mounting block 16. A damper 19 is bolted to the surface of the fixed plate 17, and the bottom of the damper 19 is bolted to the connecting plate 20.

[0027] Please see Figure 1The surface of the support column 15 is slidably connected to the mounting block 16. The bottom of the support column 15 is connected to the mounting plate 4 by bolts. By setting the mounting plate 4, it is easy to install and position the device and to keep the converter body 1 stable.

[0028] Please see Figure 1 The surface of the fixed frame 12 is connected to a filter screen by bolts. By setting the filter screen, it can play a filtering role, effectively prevent debris from being sucked into the fixed frame 12, and effectively prevent the rotation of the fixed frame 12 from being affected. The opposite side of the fixed frame 12 is slidably connected to the second heat dissipation fin 11.

[0029] Please see Figure 1 and Figure 2 The top of the first heat dissipation fin 2 is provided with an installation groove, and the inner cavity of the installation groove is connected to a protective cover by bolts. By setting the installation groove and the protective cover, the first heat dissipation fan 3 can be easily protected and can be effectively prevented from being damaged by foreign objects.

[0030] Please see Figure 1 The top of the first protective shell 6 is provided with a first slot, and the bottom of the card plate 10 is provided with a second slot. By setting the first slot and the second slot, it is easy to clamp and position the connecting cable, and effectively prevent the plug from being pulled out of the connector 5.

[0031] Please see Figure 1 The top of the card plate 10 is connected to a guide bolt by bolts. The top of the guide bolt extends through to the top of the L-shaped plate 8 and is slidably connected to the L-shaped plate 8. By setting the guide bolt, the card plate 10 can be easily guided and can be moved stably.

[0032] In use, the device is controlled by an external controller and installed via mounting plate 4. After installation, the plug of the required wire is inserted into connector 5. Then, by rotating threaded rod 9, the clamping plate 10 moves up and down, so that the bottom of clamping plate 10 contacts the first protective shell 6. During the operation of the converter body 1, vibration will occur. The converter body 1 drives the mounting block 16 and fixing plate 17 to move up and down. The fixing plate 17 drives the spring 18 to move in extension and retraction to buffer the vibration. The damper 19 provides damping to allow the converter body 1 and mounting block 16 to quickly return to a stable state.

[0033] During the operation of the converter body 1, heat is generated. This heat is conducted through the first heat dissipation fins 2 and the second heat dissipation fins 11. At the same time, the rotation of the first cooling fan 3 accelerates the airflow inside the converter body 1, which in turn drives the airflow between the first heat dissipation fins 2, thus accelerating the heat dissipation inside the converter body 1. The rotation of the two second cooling fans 14 forms an airflow channel, which accelerates the airflow between the second heat dissipation fins 11, thus accelerating the heat dissipation of the second heat dissipation fins 11 and thus assisting in the heat dissipation inside the converter body 1. This keeps the device operating at a suitable temperature, thereby improving the working efficiency of the converter body 1.

[0034] In summary, this high-efficiency, high-power-density power converter, through the fixed plate 17, spring 18, damper 19, connecting plate 20, and anti-vibration component 21, solves the problem that during operation, the device relies solely on natural airflow for heat dissipation, which generates a large amount of heat during high-power operation. At high temperatures, the performance of semiconductor components changes, leading to increased conduction and switching losses, exacerbating leakage current and thus reducing efficiency.

Claims

1. A high efficiency high power density electrical energy converter, characterized by: The converter body (1) includes a first heat dissipation fin (2) welded to the top of the converter body (1), a second heat dissipation fin (11) welded to the bottom of the converter body (1), and a first cooling fan (3) connected to the top of the converter body (1) by bolts. The converter body (1) is equipped with terminals (5) on both sides. The converter body (1) is also welded with a first protective shell (6) and a second protective shell (7) on both sides. An L-shaped plate (8) is welded to the top of the second protective shell (7). A threaded rod (9) is provided through the top of the L-shaped plate (8). A clamping plate (10) is rotatably connected to the bottom of the threaded rod (9). Mounting blocks (16) are welded to the bottom of both sides of the converter body (1). A positioning frame (13) is bolted to the opposite side of the mounting block (16). A fixing frame (12) is welded to the opposite side of the positioning frame (13). A second cooling fan (14) is bolted to the inner cavity of the fixing frame (12). A fixing plate (17) is welded to the top of the mounting block (16). An anti-vibration component (21) is provided at the bottom of the fixing plate (17).

2. A high efficiency high power density electric energy converter according to claim 1, characterized in that: The seismic component (21) includes a spring (18), the top of which is welded to a fixing plate (17), and a connecting plate (20) is welded to the bottom of the spring (18); a support column (15) is welded to the bottom of the connecting plate (20), the bottom of which extends through to the bottom of the mounting block (16); a damper (19) is bolted to the surface of the fixing plate (17); and the bottom of the damper (19) is bolted to the connecting plate (20).

3. A high efficiency high power density electric energy converter according to claim 2, characterized in that: The surface of the support column (15) is slidably connected to the mounting block (16), and the bottom of the support column (15) is connected to the mounting plate (4) by bolts.

4. A high efficiency high power density electric energy converter according to claim 1, characterized in that: The surface of the fixed frame (12) is connected to a filter screen by bolts, and the opposite side of the fixed frame (12) is slidably connected to the second heat dissipation fin (11).

5. A high efficiency high power density electric energy converter according to claim 1, characterized by: The top of the first heat dissipation fin (2) is provided with a mounting groove, and the inner cavity of the mounting groove is connected to a protective cover by bolts.

6. A high efficiency high power density electric energy converter according to claim 1, characterized by: The first protective shell (6) has a first slot at the top and the card plate (10) has a second slot at the bottom.

7. A high efficiency high power density electric energy converter according to claim 1, characterized by: The top of the card plate (10) is bolted to a guide bolt, the top of which extends through to the top of the L-shaped plate (8) and is slidably connected to the L-shaped plate (8).

Images