High-frequency quick-response direct-current charging pile power supply based on silicon carbide

Abstract

The utility model discloses a silicon carbide-based high-frequency quick response direct current charging pile power supply, which relates to the technical field of charging pile power supplies, and comprises a top plate and a heat conducting plate arranged at the bottom of the top plate, and the bottom of the heat conducting plate is fixedly connected with a connecting sheet. The cooling pipe is arranged in the heat conducting plate, one end of the cooling pipe is connected with a conveying assembly in a penetrating mode, and the conveying assembly comprises a conveying pump, a storage box and a semiconductor chilling plate; and the four sets of inserting rods are arranged at the bottom of the top plate, the bottom ends of the inserting rods are connected with fixing sleeve boxes in an inserted mode, the interiors of the fixing sleeve boxes are slidably connected with limiting assemblies, and the limiting assemblies comprise sliding blocks, supporting springs and positioning rods. Through the arrangement of the conveying assembly, the cooling pipe and the heat conducting plate, the effect of circulating refrigeration and heat dissipation of the power module is achieved, the situation that equipment loss is aggravated due to internal overheating is avoided, and the service life of equipment is prolonged.

Description

A high-frequency, fast-response DC charging pile power supply based on silicon carbide Technical Field

[0001] This utility model relates to the field of charging pile power supply technology, specifically a high-frequency fast-response DC charging pile power supply based on silicon carbide. Background Technology

[0002] Silicon carbide (SiC), as a wide-bandgap semiconductor material, can withstand higher voltages, allowing charging piles to be designed as DC power supplies capable of handling higher voltages and reducing energy loss during conversion. A high-frequency, fast-response DC charging pile power system based on SiC represents a significant development in modern electric vehicle charging technology. Utilizing the superior properties of SiC improves charging efficiency, shortens charging time, and optimizes system design, the high-frequency power system using SiC semiconductors can significantly reduce the size of the power module. This reduction in size makes the power system more compact, reduces material costs, and allows for more flexible deployment of electric vehicle charging piles, adapting to installation requirements in various environments.

[0003] However, existing high-frequency fast-response DC charging pile power supplies are difficult to circulate and cool the internal components during operation, which can easily lead to overheating of the internal power supply, causing increased equipment wear and tear and shortening its service life. Summary of the Invention

[0004] This invention provides a high-frequency fast-response DC charging pile power supply based on silicon carbide, which has the advantage of facilitating cyclic cooling and heat dissipation of the power module. This solves the problem that existing high-frequency fast-response DC charging pile power supplies are difficult to cyclically cool and dissipate heat during equipment operation, which can easily lead to overheating of the internal power supply, resulting in accelerated equipment damage and shortened service life.

[0005] To facilitate the circulating cooling and heat dissipation of the power module, this utility model provides the following technical solution: a high-frequency fast-response DC charging pile power supply based on silicon carbide, including a top plate and a heat-conducting plate disposed at the bottom of the top plate, wherein a connecting piece is fixedly connected to the bottom of the heat-conducting plate, and further including: a cooling pipe disposed inside the heat-conducting plate, one end of which is connected to a conveying assembly, the conveying assembly including a conveying pump, a storage box and a semiconductor cooling chip; four sets of insert rods disposed at the bottom of the top plate, wherein a fixing sleeve is inserted into the bottom end of the insert rod, and a limit assembly is slidably connected inside the fixing sleeve, the limit assembly including a sliding block, a support spring and a positioning rod; a locking block disposed inside the sliding block, and fixing pieces are fixedly connected to both sides of the fixing sleeve.

[0006] As a preferred embodiment of the present invention, the conveying assembly includes a conveying pump that is connected through to one end of a cooling pipe, and a storage box that is connected through to the output end of the conveying pump. A semiconductor cooling chip is fixedly connected to the top surface of the storage box.

[0007] As a preferred embodiment of the present invention, the limiting component includes a sliding block slidably connected inside the fixed sleeve, one end of the sliding block is fixedly connected to a support spring, and a positioning rod is sleeved inside the support spring.

[0008] As a preferred embodiment of this utility model, one end of the fixed sleeve is inserted into the outer shell, and the inner bottom wall of the outer shell is fixedly installed with two sets of supporting sheet metal by bolts.

[0009] As a preferred technical solution of this utility model, threaded holes are provided on the surfaces of both the fixing plate and the outer shell, and a threaded bolt passes through the inside of the threaded hole.

[0010] As a preferred embodiment of this utility model, a connecting panel is fixedly mounted on the front of the housing by screws, an output terminal is provided on one end of the surface of the connecting panel, and an input terminal is provided on the surface of the other end of the connecting panel.

[0011] As a preferred embodiment of this utility model, a power module is provided inside the outer shell, and two sets of dustproof nets are fitted onto one side of the outer shell.

[0012] As a preferred embodiment of this utility model, a protective shell is provided on the top of the top plate, and a cooling fan is fixedly connected to the top of the protective shell.

[0013] Compared with the prior art, this utility model provides a high-frequency fast-response DC charging pile power supply based on silicon carbide, which has the following beneficial effects:

[0014] This silicon carbide-based high-frequency fast-response DC charging pile power supply, through the arrangement of delivery components, cooling pipes, and heat-conducting plates, allows the heat dissipated by the power module to be transferred through connecting plates and heat-conducting plates to the cooling pipes. This allows the coolant inside the cooling pipes to absorb the heat and activate the delivery pump, which then transports the coolant to the storage tank. The storage tank is then cooled by a semiconductor cooling chip. This cyclical delivery by the delivery pump achieves the effect of circulating cooling and heat dissipation for the power module, preventing internal overheating that could lead to increased equipment wear and extending the equipment's lifespan.

[0015] This silicon carbide-based high-frequency fast-response DC charging pile power supply, through the setting of the plug rod and limiting components, allows for easy opening of the top plate for maintenance when disassembly is required. Pressing the sliding block compresses the support spring, causing it to contract and disengage the locking block on the sliding block from the slot on the plug rod. When closing is needed, inserting the plug rod into the fixing sleeve releases the sliding block, allowing the support spring to return to its original deformation and push the sliding block to move. The locking block then re-engages with the slot on the plug rod, achieving convenient opening of the top plate. This facilitates equipment maintenance, reduces maintenance time, and improves the device's usability. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 is a schematic diagram of the insertion rod and limiting component of this utility model;

[0019] Figure 4 is a schematic diagram of the conveying component, cooling pipe and heat conduction plate of this utility model.

[0020] In the diagram: 1. Top plate; 2. Heat-conducting plate; 3. Connecting piece; 4. Cooling pipe; 5. Conveying assembly; 501. Conveying pump; 502. Storage box; 503. Semiconductor cooling chip; 6. Insert rod; 7. Fixing sleeve; 8. Limiting assembly; 801. Sliding block; 802. Support spring; 803. Positioning rod; 9. Locking block; 10. Fixing piece; 11. Outer shell; 12. Support sheet metal; 13. Threaded bolt; 14. Connecting panel; 15. Output terminal; 16. Input terminal; 17. Power module; 18. Dustproof net; 19. Protective shell; 20. Cooling fan. Detailed Implementation

[0021] 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.

[0022] Please refer to Figures 1-4. This utility model discloses a high-frequency fast-response DC charging pile power supply based on silicon carbide, including a top plate 1 and a heat-conducting plate 2 disposed at the bottom of the top plate 1. A connecting piece 3 is fixedly connected to the bottom of the heat-conducting plate 2. It also includes: a cooling pipe 4 disposed inside the heat-conducting plate 2, one end of which is connected to a conveying assembly 5. The conveying assembly 5 includes a conveying pump 501, a storage box 502, and a semiconductor cooling chip 503; four sets of insert rods 6 disposed at the bottom of the top plate 1, with a fixing sleeve 7 inserted into the bottom end of the insert rods 6. A limit assembly 8 is slidably connected inside the fixing sleeve 7. The limit assembly 8 includes a sliding block 801, a support spring 802, and a positioning rod 803; a locking block 9 disposed inside the sliding block 801; and fixing pieces 10 are fixedly connected to both sides of the fixing sleeve 7.

[0023] Specifically, the delivery assembly 5 includes a delivery pump 501 that is connected to one end of the cooling pipe 4. The output end of the delivery pump 501 is connected to a storage tank 502. A semiconductor cooling chip 503 is fixedly connected to the top surface of the storage tank 502.

[0024] In this embodiment, during use, the heat emitted by the power module 17 is transferred through the connecting piece 3 and the heat-conducting plate 2 to the cooling pipe 4, causing the coolant inside the cooling pipe 4 to absorb the heat and start the delivery pump 501, which drives the coolant to be delivered to the storage tank 502. Then, the semiconductor cooling chip 503 is used to cool and lower the temperature of the storage tank 502, so that the delivery pump 501 delivers the coolant in a cyclical manner.

[0025] Specifically, the limiting component 8 includes a sliding block 801 that is slidably connected inside the fixed sleeve 7. One end of the sliding block 801 is fixedly connected to a support spring 802, and a positioning rod 803 is sleeved inside the support spring 802.

[0026] In this embodiment, when disassembly is required, the sliding block 801 is pressed, causing the sliding block 801 to compress the support spring 802. The support spring 802 then contracts under force, causing the locking block 9 on the sliding block 801 to disengage from the slot on the insert rod 6. This allows the top plate 1 to be pulled open for maintenance. When closure is required, the insert rod 6 is inserted into the fixed sleeve 7, and the sliding block 801 is released. This allows the support spring 802 to return to its original deformation, pushing the sliding block 801 to move. The locking block 9 then re-engages into the slot on the insert rod 6.

[0027] Specifically, one end of the fixed sleeve 7 is connected to the outer shell 11, and the inner bottom wall of the outer shell 11 is fixed with two sets of supporting sheet metal 12 by bolts.

[0028] In this embodiment, the outer shell 11 facilitates support and protection of the internal structure, and the supporting sheet metal 12 facilitates increasing the bottom support force and support strength.

[0029] Specifically, threaded holes are provided on the surfaces of both the fixing plate 10 and the outer shell 11, and threaded bolts 13 pass through the inside of the threaded holes.

[0030] In this embodiment, the use of threaded bolts 13 facilitates the fixed connection between the fixing plate 10 and the outer shell 11, thereby increasing stability.

[0031] Specifically, a connection panel 14 is fixedly mounted on the front of the housing 11 by screws. An output terminal 15 is provided on the surface of one end of the connection panel 14, and an input terminal 16 is provided on the surface of the other end of the connection panel 14.

[0032] In this embodiment, the connection panel 14 facilitates the corresponding installation and fixing of the output terminal 15 and the input terminal 16, and the output terminal 15 and the input terminal 16 facilitate the connection of external devices.

[0033] Specifically, a power module 17 is installed inside the outer casing 11, and two sets of dustproof nets 18 are fitted on one side of the outer casing 11.

[0034] In this embodiment, the power module 17 can provide electrical energy, and the dustproof net 18 can prevent external dust and other impurities from entering.

[0035] Specifically, a protective shell 19 is provided on the top of the top plate 1, and a cooling fan 20 is fixedly connected to the top of the protective shell 19.

[0036] In this embodiment, the protective shell 19 protects the internal components, and the cooling fan 20 drives the heat from the hot surface of the semiconductor cooling chip 503 to be quickly dissipated.

[0037] The working principle and usage process of this utility model are as follows: When in use, the heat emitted by the power module 17 is transferred through the connecting piece 3 and the heat conduction plate 2 to the cooling pipe 4, so that the coolant inside the cooling pipe 4 absorbs the heat and starts the delivery pump 501, which drives the coolant to be delivered to the storage tank 502. Then, the semiconductor cooling chip 503 is used to cool and lower the temperature of the storage tank 502, so that the delivery pump 501 delivers in a cyclical manner.

[0038] When disassembly is required, press the sliding block 801, causing it to compress the support spring 802. This causes the support spring 802 to contract under force, disengaging the locking block 9 on the sliding block 801 from the slot on the insert rod 6. This allows the top plate 1 to be pulled open for maintenance. When closure is required, insert the insert rod 6 into the fixed sleeve 7, releasing the sliding block 801. This allows the support spring 802 to return to its original deformation, pushing the sliding block 801 to move, and causing the locking block 9 to re-engage in the slot on the insert rod 6.

[0039] In summary, this silicon carbide-based high-frequency fast-response DC charging pile power supply achieves the effect of circulating cooling and heat dissipation for the power module 17 through the arrangement of the delivery component 5, cooling pipe 4, and heat conduction plate 2, avoiding internal overheating that could lead to increased equipment wear and extending the equipment's service life. Furthermore, the arrangement of the plug 6 and limiting component 8 facilitates the opening of the top plate 1, making it convenient for personnel to inspect the equipment, reducing maintenance time, and improving the device's usability.

[0040] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-frequency fast-response DC charging pile power supply based on silicon carbide, comprising a top plate (1) and a heat-conducting plate (2) disposed at the bottom of the top plate (1), wherein a connecting piece (3) is fixedly connected to the bottom of the heat-conducting plate (2), characterized in that, Also includes: A cooling pipe (4) is installed inside the heat-conducting plate (2), and one end of the cooling pipe (4) is connected to a conveying assembly (5). The conveying assembly (5) includes a conveying pump (501), a storage box (502), and a semiconductor cooling chip (503). Four sets of insert rods (6) are installed at the bottom of the top plate (1). The bottom end of the insert rod (6) is inserted into a fixing sleeve (7). A limit assembly (8) is slidably connected inside the fixing sleeve (7). The limit assembly (8) includes a sliding block (801), a support spring (802), and a positioning rod (803). A locking block (9) is installed inside the sliding block (801). Fixing plates (10) are fixedly connected to both sides of the fixing sleeve (7).

2. The high-frequency fast-response DC charging pile power supply based on silicon carbide according to claim 1, characterized in that: The delivery assembly (5) includes a delivery pump (501) that is connected through to one end of the cooling pipe (4). The output end of the delivery pump (501) is connected through to a storage tank (502). A semiconductor cooling chip (503) is fixedly connected to the top surface of the storage tank (502).

3. The high-frequency fast-response DC charging pile power supply based on silicon carbide according to claim 1, characterized in that: The limiting component (8) includes a sliding block (801) slidably connected inside the fixed sleeve (7). One end of the sliding block (801) is fixedly connected to a support spring (802), and a positioning rod (803) is sleeved inside the support spring (802).

4. The high-frequency fast-response DC charging pile power supply based on silicon carbide according to claim 1, characterized in that: One end of the fixed sleeve (7) is inserted into the outer shell (11), and the inner bottom wall of the outer shell (11) is fixedly installed with two sets of supporting sheet metal (12) by bolts.

5. A high-frequency fast-response DC charging pile power supply based on silicon carbide according to claim 4, characterized in that: Both the fixing plate (10) and the outer shell (11) have threaded holes on their surfaces, and a threaded bolt (13) passes through the inside of the threaded hole.

6. The high-frequency fast-response DC charging pile power supply based on silicon carbide according to claim 4, characterized in that: A connecting panel (14) is fixedly mounted on the front of the housing (11) by screws. An output terminal (15) is provided on the surface of one end of the connecting panel (14), and an input terminal (16) is provided on the surface of the other end of the connecting panel (14).

7. A high-frequency fast-response DC charging pile power supply based on silicon carbide according to claim 4, characterized in that: The power module (17) is installed inside the outer shell (11), and two sets of dustproof nets (18) are fitted on one side of the outer shell (11).

8. The high-frequency fast-response DC charging pile power supply based on silicon carbide according to claim 1, characterized in that: The top of the top plate (1) is provided with a protective shell (19), and a cooling fan (20) is fixedly connected to the top of the protective shell (19).

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