Immersed liquid cooling heat dissipation high-power charging module

Abstract

The invention discloses an immersed liquid cooling heat dissipation high-power charging module, which belongs to the technical field of charging equipment cooling and comprises a sealed shell and a plurality of heat dissipation fins. The charging module circuit board body is arranged at the center position in the sealing shell through the support. Cooling liquid is arranged in the sealing shell, and the sealing shell wraps the charging module circuit board body. And a plurality of radiating fins are uniformly arranged above the sealing shell. Insulation silicon-based cooling liquid is selected as the cooling liquid, and the heat dissipation fins are aluminum fins, so that the heat dissipation efficiency is improved. According to the high-power charging module, cooling liquid is adopted to make full contact with the high-heating assembly, the efficient heat dissipation effect is achieved, air is isolated, the problems of corrosion and high temperature caused by air are avoided, and high reliability of the high-power charging module is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of cooling of charging equipment, and more specifically relates to a high-power charging module with immersion liquid cooling and heat dissipation. Background Art

[0002] With the rapid development of the electric vehicle (EV) and plug-in hybrid electric vehicle (PHEV) markets, the demand for charging infrastructure is growing. In order to shorten the charging time and improve the charging efficiency, high-power charging modules have become the key to the development of the industry. At present, the power of mainstream high-power charging modules has developed from the initial 15kW to the current 30kW, 40kW, 60KW and even higher. As the power gradually increases, the demand for heat dissipation mode has also gradually increased. Various companies have been committed to the research and development of new heat dissipation technologies and materials to meet the rapid development of the electric vehicle market. The air-cooled module is the earliest heat dissipation method for high-power charging modules, but the air-cooled module has certain limitations when charging at high power, such as low heat dissipation efficiency, high noise, fan life and maintenance problems, and the air-cooled system needs to consume more electricity to drive the fan. The cold plate liquid cooling module is a heat dissipation method for high-power charging modules that has gradually become the mainstream in recent years. It has the advantages of high heat dissipation efficiency, low noise, and strong adaptability to ambient temperature, but at the same time, it still has problems such as high cost and increased system complexity.

[0003] Therefore, how to provide a high-efficiency and low-cost immersion liquid cooling high-power charging module is a problem that technical personnel in this field need to solve urgently. Summary of the invention

[0004] In view of this, the present invention provides a high-power charging module with immersion liquid cooling, which significantly improves energy efficiency and heat dissipation capacity by optimizing the heat dissipation design, and provides a more efficient and reliable solution for fast charging of electric vehicles.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A high-power charging module with immersion liquid cooling comprises a sealed shell and a plurality of cooling fins; a charging module circuit board body is arranged at a central position inside the sealed shell through a bracket; a cooling liquid is arranged inside the sealed shell and wrapped around the outside of the charging module circuit board body; a plurality of cooling fins are evenly arranged above the sealed shell.

[0007] Furthermore, the coolant is an insulating silicon-based coolant with good thermal conductivity, excellent material compatibility, high flash ignition point and high insulation performance.

[0008] Furthermore, the heat dissipation fins are configured as aluminum fins.

[0009] Furthermore, a power connector is provided on one side of the sealed shell, with one end facing inwards connected to the charging module circuit board body and one end facing outwards connected to the external power grid; the connection between the power connector and the sealed shell is sealed to prevent leakage of coolant.

[0010] Furthermore, an oil inlet and an oil outlet are also provided on the side of the sealed shell, and the oil inlet and the oil outlet are arranged on the same side or on opposite sides of the side of the sealed shell, and are arranged as one inlet and one outlet, one inlet and two outlets, or two inlets and two outlets.

[0011] The beneficial effects of the present invention are:

[0012] The technical solution of the present invention has the following technical advantages or effects: 1) Immersion liquid cooling technology: The present invention adopts insulating silicon-based coolant to contact high-heat components in all aspects, eliminates traditional fans and thermal conductive adhesives, simplifies the structure and achieves efficient heat dissipation. 2) Aluminum fin shell design: The heat dissipation fins of the sealed shell of the charging module adopt aluminum fins, which improves the heat dissipation efficiency and can be adjusted according to the module size and heat dissipation requirements. 3) Full immersion heat dissipation solution: The charging module circuit board body is completely immersed in insulating silicon-based coolant, isolated from the air, avoiding corrosion and high temperature problems caused by air, and ensuring the high reliability of high-power charging modules. 4) Plug-and-play compatible design: The immersion liquid-cooled charging module can be fully adapted to the original cold plate liquid-cooled charging module in size, realizing plug-and-play, and the heat dissipation efficiency is better than that of the cold plate liquid-cooled charging module. 5) Versatility and strong adaptability without customization: The content of the existing air-cooled module can be directly adopted, while significantly improving its efficiency index. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Among them, in the figure:

[0016] 10-sealed housing; 20-heat sink fins; 30-coolant; 40-charging module circuit board body; 50-power connector; 60-oil inlet; 70-oil outlet. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Please see attached Figure 1 The present invention provides a high-power charging module with immersion liquid cooling, including a sealed shell 10 and a plurality of heat dissipation fins 20; a charging module circuit board body 40 is arranged at the center of the sealed shell 10 through a bracket; a coolant 30 is arranged inside the sealed shell 10 and wrapped outside the charging module circuit board body 40. A plurality of heat dissipation fins 20 are evenly arranged above the sealed shell 10. The coolant 30 is an insulating silicon-based coolant with good thermal conductivity, excellent material compatibility, high flash point and high insulation performance. The charging module circuit board body 40 is immersed in the coolant 30 to isolate the air, avoiding corrosion and high temperature problems caused by air, and ensuring the high reliability of the module. The heat of the charging module circuit board body 40 is transferred to the coolant 30, and the heat is dissipated outward through a plurality of heat dissipation fins 20. The heat dissipation fins 20 are set as aluminum fins, and their appearance design can be adjusted according to the size of the charging module body and the heat dissipation requirements.

[0019] A power connector 50 is provided on one side of the sealed housing 10, with one end facing inward connected to the charging module circuit board body and one end facing outward connected to the external power grid; the connection between the power connector 50 and the sealed housing 10 is sealed to prevent leakage of the coolant 30; an oil inlet 60 and an oil outlet 70 are also provided on the side of the sealed housing 10, and the oil inlet 60 and the oil outlet 70 are provided on the same side or on the opposite side of the sealed housing 10. When the power of the charging module circuit board body increases, the heat dissipation efficiency can be improved by increasing the flow rate of the coolant. The oil inlet 60 and the oil outlet 70 can also be set as one in and two out or two in and two out, and the total flow amount and flow rate of the coolant can be increased by adjusting the input and output.

[0020] The present invention can also replace the charging module circuit board with a battery cell to make an immersion liquid-cooled energy storage PACK, and can also replace the charging module circuit board with a server product to make an immersion liquid-cooled data center server product.

[0021] The technical solution of the present invention has the following technical advantages or effects: 1) Immersion liquid cooling heat dissipation technology: The present invention adopts insulating silicon-based coolant 30 to contact high-heat generating components in all aspects, eliminates the traditional fan and thermal conductive adhesive, and achieves efficient heat dissipation effect. 2) Aluminum fin shell design: The heat dissipation fins 20 of the sealed shell 10 of the charging module adopt aluminum fins, which improves the heat dissipation efficiency and can be adjusted according to the module size and heat dissipation requirements. 3) Full immersion heat dissipation solution: The charging module circuit board body 40 is completely immersed in the insulating silicon-based coolant 30, isolating the air, avoiding corrosion and high temperature problems caused by the air, and ensuring the high reliability of the high-power charging module. 4) Plug-and-play compatible design: The immersion liquid-cooled charging module can be fully adapted to the original cold plate liquid cooling module in size, realizing plug-and-play, and the heat dissipation efficiency is better than the cold plate liquid cooling charging module. 5) Universality without customization: The content of the existing air-cooled module can be directly adopted, while significantly improving its efficiency index.

[0022] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0023] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-power charging module with immersion liquid cooling, characterized in that: The invention comprises a sealed shell (10) and a plurality of heat dissipation fins (20); a charging module circuit board body (40) is arranged at a central position inside the sealed shell (10) through a bracket; a cooling liquid (30) is arranged inside the sealed shell (10) and wrapped around the outside of the charging module circuit board body (40); and a plurality of heat dissipation fins (20) are evenly arranged above the sealed shell (10).

2. The high-power charging module with immersion liquid cooling according to claim 1 is characterized in that: The coolant (30) is an insulating silicon-based coolant with good thermal conductivity, excellent material compatibility, high flash ignition point and high insulation performance.

3. The high-power charging module with immersion liquid cooling according to claim 1 is characterized in that: The heat dissipation fins (20) are configured as aluminum fins.

4. The high-power charging module with immersion liquid cooling according to claim 1 is characterized in that: A power connector (50) is provided on one side of the sealed housing (10), with one end facing inwards connected to the charging module circuit board body and one end facing outwards connected to an external power grid; the connection between the power connector (50) and the sealed housing (10) is sealed to prevent leakage of the coolant (30).

5. The high-power charging module with immersion liquid cooling according to claim 1 is characterized in that: The side of the sealed housing (10) is also provided with an oil inlet (60) and an oil outlet (70), and the oil inlet (60) and the oil outlet (70) are arranged on the same side or on opposite sides of the side of the sealed housing (10), and are arranged in a one-in-one-out, one-in-two-out, or two-in-two-out configuration.

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