Air cooling heat dissipation assembly of high-voltage large-current charging module based on SIC

Abstract

The invention provides an SIC-based air-cooled heat dissipation assembly of a high-voltage large-current charging module, and relates to the technical field of air-cooled heat dissipation assemblys.The SIC-based air-cooled heat dissipation assembly comprises a high-voltage large-current charging module body, a corrugated heat dissipation plate is installed at the lower end of the high-voltage large-current charging module body, and a ventilation assembly is installed at the lower end of the corrugated heat dissipation plate; the ventilation assembly comprises a ventilation box, partition blocks and a channel, the partition blocks are installed in the ventilation box, the channel is arranged between the two partition blocks, the channel size adjusting assembly is installed at the lower end of the ventilation assembly, the injection assembly is installed at the lower end of the channel size adjusting assembly, and the air supply assembly is installed on the right side of the ventilation assembly. The high-power fan has the advantages that flowing of air can be accelerated to a certain degree through the shape of the channel in the working process, so that the high-power effect can be achieved without the need of high power of the fan, and the situation that noise is generated due to the fact that the power of the fan is too high can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of air-cooling and heat dissipation components, and in particular to an air-cooling and heat dissipation component of a high-voltage and high-current charging module based on SIC. Background Art

[0002] A high-voltage, high-current charging module is a device specifically used to convert input electrical energy into high-voltage, high-current output electrical energy. It is mainly used for fast charging of large-capacity batteries or energy storage devices. Its core principle is based on power electronic conversion technology. Through a switching circuit composed of power semiconductor devices (such as IGBT-insulated gate bipolar transistors, MOSFET-metal-oxide-semiconductor field-effect transistors, etc.), the input AC power (generally from the power grid) is rectified, filtered, inverted, and a series of other conversion operations are performed to finally output high-voltage DC power that meets the requirements. For example, in the scenario of fast charging of electric vehicles, the charging module can convert the AC power of the power grid into high-voltage DC power that can quickly charge the vehicle's power battery.

[0003] This type of high-voltage, high-current charging module will use air-conducting cooling components to dissipate heat from the charging module during operation, thereby ensuring the normal operation of the charging module and avoiding damage caused by overheating during charging.

[0004] Existing air-cooled heat dissipation components mainly rely on fans to drive the flow of air for heat dissipation and cooling, but the speed of air flow has a great influence on the heat dissipation effect. If a high-power fan is used for heat dissipation, noise will occur. Therefore, the power of the fan cannot be too high, which will lead to a decrease in the heat dissipation effect. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and propose an air-cooling heat dissipation component for a high-voltage and high-current charging module based on SIC. The technical solution adopted by the present invention is:

[0006] A wind-cooled heat dissipation component of a high-voltage and high-current charging module based on SIC, comprising a high-voltage and high-current charging module body, a corrugated heat dissipation plate is installed at the lower end of the high-voltage and high-current charging module body, and a ventilation component is installed at the lower end of the corrugated heat dissipation plate, the ventilation component comprises a ventilation box, a partition block and a channel, and a partition block is installed inside the ventilation box, and a channel is provided between two of the partition blocks.

[0007] As an improvement, a channel size adjustment component is installed at the lower end of the ventilation component, and an injection component is installed at the lower end of the channel size adjustment component, an air supply component is installed on the right side of the ventilation component, and a pressure relief component is installed inside the air supply component.

[0008] As an improvement, the channel size adjustment assembly includes an upper piston plate, a first spring, a hydraulic cylinder, a mounting plate, a fluid guide tube and a protective box, and the lower end of the upper piston plate is connected to the first spring, the lower end of the first spring is connected to the hydraulic cylinder, and the outside of the hydraulic cylinder is connected to the mounting plate, the lower end of the hydraulic cylinder is connected to the fluid guide tube, and the outside of the fluid guide tube is provided with a protective box.

[0009] As an improvement, the injection assembly includes an addition pipeline, a pressure valve and a solenoid valve, and the pressure valve and the solenoid valve are installed on the addition pipeline in sequence.

[0010] As an improvement, the air supply assembly includes a wind box and a fan, and the fan is installed inside the wind box.

[0011] As an improvement, the pressure relief assembly includes a pressure relief box, an auxiliary block, a sealed lifting plate, a second spring and an exhaust port, and a sealed lifting plate is installed inside the pressure relief box, an auxiliary block is arranged on the right side of the sealed lifting plate, and a second spring is connected to the lower end of the sealed lifting plate, and an exhaust port is opened at the lower end of the pressure relief box.

[0012] The beneficial effects of the present invention are:

[0013] The present invention provides an air-cooling heat dissipation component of a high-voltage and high-current charging module based on SIC. The shape of the channel accelerates the flow of air during operation, so that the power of the fan does not need to be large enough to achieve a high-power effect, thereby avoiding the situation where the fan power is too large and noise occurs.

[0014] The present invention relies on the elastic structure formed between the upper piston plate through the first spring and the hydraulic cylinder. When the air pressure inside the channel is too high, the upper piston plate can be pressed downward, so that the channel opening path is larger, making it easier for air to pass through the device.

[0015] The present invention can adjust the size of the channel through the hydraulic cylinder. When the wind force of the fan is insufficient, the size of the channel can be reduced to speed up the air flow of the equipment and achieve a rapid cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the present invention.

[0017] Figure 2 It is a schematic diagram of the top view of the ventilation assembly of the present invention.

[0018] Figure 3 It is a schematic diagram of the side cross-sectional structure of the channel size adjustment component of the present invention.

[0019] Figure 4 It is a schematic diagram of the enlarged cross-section structure of the air supply component of the present invention.

[0020] In the figure: 1. High-voltage and high-current charging module body; 2. Corrugated heat sink; 3. Ventilation component; 301. Ventilation box; 302. Dividing block; 303. Channel; 4. Channel size adjustment component; 401. Upper piston plate; 402. First spring; 403. Hydraulic cylinder; 404. Mounting plate; 405. Liquid guide tube; 406. Protective box; 5. Injection component; 501. Adding pipeline; 502. Pressure valve; 503. Solenoid valve; 6. Air supply component; 601. Bellows; 602. Fan; 7. Pressure relief component; 701. Pressure relief box; 702. Auxiliary block; 703. Sealing lifting plate; 704. Second spring; 705. Exhaust port. DETAILED DESCRIPTION

[0021] In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. The same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0022] like Figure 1 and Figure 2 As shown, it includes a high-voltage and high-current charging module body 1, a corrugated heat sink 2 is installed at the lower end of the high-voltage and high-current charging module body 1, and a ventilation component 3 is installed at the lower end of the corrugated heat sink 2, the ventilation component 3 includes a ventilation box 301, a partition block 302 and a channel 303, and the partition block 302 is installed inside the ventilation box 301, and a channel 303 is provided between the two partition blocks 302;

[0023] During operation, the shape of the channel 303 will accelerate the flow of air to a certain extent, so that the power of the fan 602 does not need to be very large to achieve a high-power effect, thus avoiding the situation where the fan 602 is too large and noisy.

[0024] like Figure 1 , Figure 3 and Figure 4 As shown, a channel size adjustment component 4 is installed at the lower end of the ventilation component 3, and an injection component 5 is installed at the lower end of the channel size adjustment component 4. An air supply component 6 is installed on the right side of the ventilation component 3, and a pressure relief component 7 is installed inside the air supply component 6.

[0025] like Figure 3As shown, the channel size adjustment component 4 includes an upper piston plate 401, a first spring 402, a hydraulic cylinder 403, a mounting plate 404, a liquid guide tube 405 and a protective box 406, and the lower end of the upper piston plate 401 is connected to the first spring 402, the lower end of the first spring 402 is connected to the hydraulic cylinder 403, the outside of the hydraulic cylinder 403 is connected to the mounting plate 404, the lower end of the hydraulic cylinder 403 is connected to the liquid guide tube 405, and the outside of the liquid guide tube 405 is provided with a protective box 406;

[0026] Relying on the elastic structure formed by the upper piston plate 401 through the first spring 402 and the hydraulic cylinder 403, when the air pressure inside the channel 303 is too high, the upper piston plate 401 can be pressed downward, so that the channel 303 opens a larger path to facilitate the passage of air through the equipment. The size of the channel 303 can be adjusted by the hydraulic cylinder 403. When the wind force of the fan 602 is insufficient, the size of the channel 303 can be reduced to speed up the air flow of the equipment and achieve a rapid cooling effect.

[0027] like Figure 3 As shown, the injection assembly 5 includes an addition pipeline 501, a pressure valve 502 and a solenoid valve 503, and the pressure valve 502 and the solenoid valve 503 are sequentially installed on the addition pipeline 501;

[0028] The liquid syringe is connected to the adding pipeline 501, the solenoid valve 503 is opened, and the syringe is pressurized, so that the high-pressure liquid pushes the pressure valve 502 open, and the liquid is injected into the hydraulic cylinder 403 through the liquid guide tube 405.

[0029] like Figure 4 As shown, the air supply assembly 6 includes a wind box 601 and a fan 602 , and the fan 602 is installed inside the wind box 601 .

[0030] like Figure 4 As shown, the pressure relief assembly 7 includes a pressure relief box 701, an auxiliary block 702, a sealing lifting plate 703, a second spring 704 and an exhaust port 705, and the sealing lifting plate 703 is installed inside the pressure relief box 701, the auxiliary block 702 is arranged on the right side of the sealing lifting plate 703, and the lower end of the sealing lifting plate 703 is connected to the second spring 704, and the lower end of the pressure relief box 701 is provided with an exhaust port 705;

[0031] When the air pressure exceeds a certain limit, the sealing lifting plate 703 which is an elastic structure formed between the second spring 704 and the bellows 601 will be pressed, so that the sealing lifting plate 703 drops to the bottom of the auxiliary block 702, so that the high-pressure gas can be discharged from the exhaust port 705.

[0032] During use, firstly, silica gel is used to fill the space between the corrugated heat sink 2 and the high-voltage and high-current charging module body 1, so that the corrugated heat sink 2 can absorb the temperature on the high-voltage and high-current charging module body 1, and the heat dissipation work can be carried out. When working, the power of the fan 602 is first tested. If it is found that the power of the fan 602 is reduced due to aging, the liquid syringe can be connected to the adding pipe 501, and then the solenoid valve 503 is opened to pressurize the syringe, so that the high-pressure liquid pushes the pressure valve 502 open, and the liquid is injected into the hydraulic cylinder 403 through the liquid guide tube 405, so that the hydraulic cylinder 403 rises, so that the hydraulic cylinder 403 drives the upper piston plate 401 to rise, and the size of the channel 303 is adjusted to be reduced, so that the air flow speed can be maintained when the power of the fan 602 is reduced;

[0033] When the equipment adjustment is completed, the fan 602 can be turned on to work normally. After the fan 602 is turned on, the fan 602 will suck air into the bellows 601, and then inject the air into the channel 303 through the seal at the connection between the bellows 601 and the ventilation box 301, accelerate the flow of air through the channel 303, and then make the air flow quickly to cool the corrugated heat sink 2, thereby achieving the cooling of the high-voltage and high-current charging module body 1;

[0034] If the wind pressure is too high during the cooling process, the upper piston plate 401 will be squeezed downward by the elastic structure formed by the first spring 402 and the hydraulic cylinder 403, thereby increasing the diameter of the channel 303 to facilitate the rapid passage of air, avoid high pressure inside the equipment, and affect the air injection of the fan 602. When the pressure inside the equipment exceeds a certain limit, the sealing lifting plate 703 formed by the elastic structure between the second spring 704 and the bellows 601 will be pressed, so that the sealing lifting plate 703 will drop to the bottom of the auxiliary block 702, so that the high-pressure gas can be discharged from the exhaust port 705, thereby keeping the pressure inside the equipment stable and facilitating the flow of air.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air-cooling heat dissipation component for a high-voltage and high-current charging module based on SIC, characterized in that: The invention comprises a high-voltage and high-current charging module body (1), a corrugated heat sink (2) being installed at the lower end of the high-voltage and high-current charging module body (1), and a ventilation assembly (3) being installed at the lower end of the corrugated heat sink (2), the ventilation assembly (3) comprising a ventilation box (301), a partition block (302) and a channel (303), and a partition block (302) being installed inside the ventilation box (301), and a channel (303) being arranged between two partition blocks (302).

2. According to claim 1, a wind-cooled heat dissipation component of a high-voltage and high-current charging module based on SIC is characterized in that: A channel size adjustment component (4) is installed at the lower end of the ventilation component (3), and an injection component (5) is installed at the lower end of the channel size adjustment component (4); an air supply component (6) is installed on the right side of the ventilation component (3), and a pressure relief component (7) is installed inside the air supply component (6).

3. The air-cooling heat dissipation component of the SIC-based high-voltage and high-current charging module according to claim 2, characterized in that: The channel size adjustment component (4) comprises an upper piston plate (401), a first spring (402), a hydraulic cylinder (403), a mounting plate (404), a liquid guide tube (405) and a protective box (406), wherein the lower end of the upper piston plate (401) is connected to the first spring (402), the lower end of the first spring (402) is connected to the hydraulic cylinder (403), the outside of the hydraulic cylinder (403) is connected to the mounting plate (404), the lower end of the hydraulic cylinder (403) is connected to the liquid guide tube (405), and the outside of the liquid guide tube (405) is provided with a protective box (406).

4. The air-cooling heat dissipation component of the SIC-based high-voltage and high-current charging module according to claim 2, characterized in that: The injection assembly (5) comprises an addition pipeline (501), a pressure valve (502) and a solenoid valve (503), and the pressure valve (502) and the solenoid valve (503) are sequentially installed on the addition pipeline (501).

5. The air-cooling heat dissipation component of the SIC-based high-voltage and high-current charging module according to claim 2, characterized in that: The air supply assembly (6) comprises a wind box (601) and a fan (602), and the fan (602) is installed inside the wind box (601).

6. The air-cooling heat dissipation component of the SIC-based high-voltage and high-current charging module according to claim 2, characterized in that: The pressure relief assembly (7) comprises a pressure relief box (701), an auxiliary block (702), a sealing lifting plate (703), a second spring (704) and an exhaust port (705), wherein the sealing lifting plate (703) is installed inside the pressure relief box (701), the auxiliary block (702) is arranged on the right side of the sealing lifting plate (703), the lower end of the sealing lifting plate (703) is connected to the second spring (704), and the lower end of the pressure relief box (701) is provided with an exhaust port (705).

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