Lightweight new energy battery pack liquid cooling plate assembly

Abstract

The utility model belongs to the technical field of battery pack liquid cooling, and particularly relates to a light-weight new energy battery pack liquid cooling plate assembly which comprises an aluminum plate, a liquid cooling pipe and radiating fins, the liquid cooling pipe is detachably installed on the aluminum plate, one end of the liquid cooling pipe is a liquid inlet, the other end of the liquid cooling pipe is a liquid outlet, the multiple heat dissipation fins are fixed to the aluminum plate at equal intervals in the horizontal direction, and positioning grooves allowing the liquid cooling pipe to be embedded are formed in the heat dissipation fins; according to the light-weight new energy battery pack liquid cooling plate assembly disclosed by the utility model, the heat dissipation fins are arranged, so that the heat dissipation area can be greatly increased, the defect caused by the limited contact area of the liquid cooling pipe and the aluminum plate is overcome, the heat dissipation efficiency is greatly improved, and the working safety of the battery pack is ensured; by arranging the insulating heat absorption cotton plate, the heat absorption efficiency of the aluminum plate can be effectively improved, and the heat dissipation efficiency can be further improved; the liquid cooling pipe is detachably installed, and is easy to install, use, disassemble and maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery pack liquid cooling, and specifically relates to a lightweight new energy battery pack liquid cooling plate assembly. Background Art

[0002] At present, the power lithium battery industry is developing very rapidly, and its application has expanded to electric buses, electric cars, micro buses and energy storage. For electric vehicles, the battery pack is the core energy storage component. Improving the energy density of the battery pack can effectively increase the range of electric vehicles. However, the short range of electric vehicles has always been the main factor restricting the development of electric vehicles. Developing lightweight power battery packs and improving the energy density of power batteries is an effective way to solve this problem.

[0003] At present, aluminum plates and liquid cooling tubes are usually used to dissipate heat for lightweight new energy battery packs. For example, the Chinese utility model patent with the authorization announcement number CN218525638U discloses "a lightweight new energy battery pack liquid cooling plate assembly", which includes an aluminum plate, multiple liquid cooling tubes, a liquid inlet manifold and a liquid outlet manifold; multiple liquid cooling tubes are evenly installed on one side of the aluminum plate, and the two ends of the liquid cooling tubes are respectively connected to the liquid inlet manifold and the liquid outlet manifold. The utility model replaces the traditional stamping plate flow channel structure by combining the liquid cooling tube with the aluminum plate, reduces the development cycle and mold costs, reduces the weight by more than 30%, and reduces the cost by 20%;

[0004] However, although the aforementioned liquid cooling plate assembly has the advantages of light weight and low cost, in actual use, the contact area between the liquid cooling tube and the aluminum plate is limited, that is, the heat dissipation area is limited, and the heat absorbed by the aluminum plate is difficult to be fully absorbed by the liquid cooling tube in a short time, and the heat dissipation efficiency is insufficient;

[0005] In order to solve the above problems, this application proposes a lightweight new energy battery pack liquid cooling plate assembly. Utility Model Content

[0006] In order to solve the above-mentioned problems existing in the prior art, the utility model provides a lightweight new energy battery pack liquid cooling plate assembly, which has the characteristics of easy use and high heat dissipation efficiency.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lightweight new energy battery pack liquid cooling plate assembly, including an aluminum plate and a liquid cooling tube, and also including a heat dissipation fin;

[0008] The liquid cooling tube is detachably mounted on the aluminum plate, and one end of the liquid cooling tube is a liquid inlet and the other end is a liquid outlet. A plurality of heat dissipating fins are fixed on the aluminum plate at equal intervals in the horizontal direction, and positioning grooves for embedding the liquid cooling tubes are provided on the heat dissipating fins.

[0009] As a preferred technical solution of the present invention, the width of the positioning groove is equal to the width of the liquid cooling tube, and the top surface of the heat dissipation fin is flush with the top surface of the liquid cooling tube.

[0010] As a preferred technical solution of the utility model, the liquid cooling tube is arranged on the aluminum plate in an "S" shape.

[0011] As a preferred technical solution of the utility model, the liquid cooling tube is a flat aluminum alloy tube.

[0012] As a preferred technical solution of the utility model, an insulating heat-absorbing cotton plate is bonded and fixed to the bottom surface of the aluminum plate.

[0013] As a preferred technical solution of the utility model, it also includes a pressing plate and a locking screw. The pressing plate is fixed on the heat dissipation fin by the locking screw to compress the liquid cooling tube.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the lightweight new energy battery pack liquid cooling plate assembly of the utility model can greatly increase the heat dissipation area by means of the heat dissipation fins, make up for the defects caused by the limited contact area between the liquid cooling tube and the aluminum plate, greatly improve the heat dissipation efficiency, and ensure the safety of the battery pack operation; the insulating heat-absorbing cotton plate can effectively improve the efficiency of the aluminum plate in absorbing heat, which is conducive to further improving the heat dissipation efficiency; the liquid cooling tube is detachably installed, which is easy to install, use, disassemble and maintain.

[0015] Other additional advantages and beneficial effects of the present application will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the axonometric structure of the aluminum plate of the utility model;

[0019] Figure 3 For this utility model Figure 1 A is an enlarged structural diagram;

[0020] In the figure: 1. Aluminum plate; 2. Liquid cooling tube; 3. Liquid inlet; 4. Liquid outlet; 5. Heat dissipation fins; 6. Positioning groove; 7. Insulating heat-absorbing cotton board; 8. Pressing plate; 9. Locking screw. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 3 , the utility model provides the following technical solutions: a lightweight new energy battery pack liquid cooling plate assembly, including an aluminum plate 1 and a liquid cooling tube 2, and also including a heat dissipation fin 5;

[0023] By the attached Figure 1 As shown, in this embodiment, the liquid cooling tube 2 is detachably installed on the aluminum plate 1, and one end of the liquid cooling tube 2 is a liquid inlet 3, and the other end is a liquid outlet 4, and a plurality of heat dissipation fins 5 are fixed on the aluminum plate 1 at equal intervals in the horizontal direction, and a positioning groove 6 for the liquid cooling tube 2 to be embedded is provided on the heat dissipation fin 5. Therefore, when in use, the liquid cooling tube 2 is embedded in the corresponding positioning groove 6 and installed on the aluminum plate 1, and coolant is injected into the liquid cooling tube 2 from the liquid inlet 3. The heat generated by the battery pack will be absorbed by the aluminum plate 1 and further conducted to the liquid cooling tube 2 and the heat dissipation fins 5 to achieve heat dissipation. By setting the heat dissipation fins 5, the heat dissipation area can be greatly increased, which makes up for the defect caused by the limited contact area between the liquid cooling tube 2 and the aluminum plate 1, greatly improves the heat dissipation efficiency, and ensures the safety of the battery pack.

[0024] By the attached Figure 1 As shown, as an optional embodiment, in this embodiment, the width of the positioning groove 6 is equal to the width of the liquid cooling tube 2, and the top surface of the heat dissipation fin 5 is flush with the top surface of the liquid cooling tube 2, thereby improving the stability of the installation of the liquid cooling tube 2 and avoiding lateral displacement of the liquid cooling tube 2.

[0025] By the attached Figure 1 As shown, as an optional embodiment, in this embodiment, the liquid cooling tube 2 is arranged in an "S" shape on the aluminum plate 1, which increases the contact area between the liquid cooling tube 2 and the aluminum plate 1, thereby further improving the heat dissipation efficiency.

[0026] By the attached Figure 1 As shown, as an optional embodiment, in this embodiment, the liquid cooling tube 2 is a flat aluminum alloy tube. The liquid cooling tube 2 is designed to be a flat structure, has a large contact area with the aluminum plate 1, and has high heat dissipation efficiency. The liquid cooling tube 2 is an aluminum alloy tube, which has high thermal conductivity and good corrosion resistance. It should also be noted that the aluminum alloy tube is only an exemplary choice for this embodiment. In actual use, the liquid cooling tube 2 can still choose metal tubes of other materials, such as copper alloy and titanium alloy.

[0027] By the attached Figure 1 and attached Figure 2 As shown, as an optional embodiment, in this embodiment, an insulating heat-absorbing cotton board 7 is bonded and fixed to the bottom surface of the aluminum plate 1. The insulating heat-absorbing cotton board 7 can effectively improve the efficiency of the aluminum plate 1 in absorbing heat, which is beneficial to further improve the heat dissipation efficiency.

[0028] By the attached Figure 1 and attached Figure 3 As shown, as an optional embodiment, this embodiment also includes a pressing plate 8 and a locking screw 9. The pressing plate 8 is fixed to the heat dissipation fin 5 by the locking screw 9 to compress the liquid cooling tube 2, thereby achieving stable installation of the liquid cooling tube 2 and facilitating the disassembly of the liquid cooling tube 2, making it easy to install, use, disassemble and maintain.

[0029] Working principle and use process of the utility model: When the lightweight new energy battery pack liquid cooling plate assembly of the utility model is in use, the liquid cooling tube 2 is embedded in the corresponding positioning groove 6 and installed on the aluminum plate 1, and the coolant is injected into the liquid cooling tube 2 from the liquid inlet 3. The heat generated by the battery pack will be absorbed by the aluminum plate 1 and further conducted to the liquid cooling tube 2 and the heat dissipation fins 5 to achieve heat dissipation; the heat dissipation area can be greatly increased by setting the heat dissipation fins 5, which makes up for the defect caused by the limited contact area between the liquid cooling tube 2 and the aluminum plate 1, greatly improves the heat dissipation efficiency, and ensures the safety of the battery pack;

[0030] The provision of the insulating heat-absorbing cotton board 7 can effectively improve the efficiency of the aluminum plate 1 in absorbing heat, which is conducive to further improving the heat dissipation efficiency;

[0031] The liquid cooling tube 2 is detachably installed, and is easy to install, use, disassemble and maintain.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lightweight new energy battery pack liquid cooling plate assembly, comprising an aluminum plate (1) and a liquid cooling tube (2), characterized in that: Also includes heat dissipation fins (5); The liquid cooling tube (2) is detachably mounted on the aluminum plate (1), and one end of the liquid cooling tube (2) is a liquid inlet (3) and the other end is a liquid outlet (4). A plurality of heat dissipation fins (5) are fixed on the aluminum plate (1) at equal intervals in a horizontal direction, and a positioning groove (6) for the liquid cooling tube (2) to be embedded is provided on the heat dissipation fin (5).

2. A lightweight new energy battery pack liquid cooling plate assembly according to claim 1, characterized in that: The width of the positioning groove (6) is equal to the width of the liquid cooling tube (2), and the top surface of the heat dissipation fin (5) is flush with the top surface of the liquid cooling tube (2).

3. A lightweight new energy battery pack liquid cooling plate assembly according to claim 1, characterized in that: The liquid cooling tube (2) is arranged in an "S" shape on the aluminum plate (1).

4. The lightweight new energy battery pack liquid cooling plate assembly according to claim 1 is characterized in that: The liquid cooling tube (2) is a flat aluminum alloy tube.

5. The lightweight new energy battery pack liquid cooling plate assembly according to claim 1 is characterized in that: An insulating heat-absorbing cotton plate (7) is bonded and fixed to the bottom surface of the aluminum plate (1).

6. The lightweight new energy battery pack liquid cooling plate assembly according to claim 1 is characterized by: It also includes a pressing plate (8) and a locking screw (9), wherein the pressing plate (8) is fixed to the heat dissipation fin (5) by means of the locking screw (9) to press the liquid cooling tube (2).

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