Aluminum plate for power battery shell

Abstract

The utility model relates to the field of power battery cases, in particular to an aluminum plate for a power battery case, which comprises an aluminum plate body and a first connecting layer, radiating fins are welded at the top of the aluminum plate body, the first connecting layer comprises a corrosion-resistant layer, a second connecting layer is mounted at the bottom of the corrosion-resistant layer, and the second connecting layer is welded at the top of the aluminum plate body. A third connecting layer is mounted at the bottom of the second connecting layer and comprises a waterproof layer. According to the utility model, the radiating fins, the outer heat conduction layer and the inner heat conduction layer are matched, so that the power battery has the advantage of good heat conduction and heat dissipation effects, when the power battery generates heat, the heat generated by the power battery can be quickly conducted out through the inner heat conduction layer and the outer heat conduction layer, and then the heat is dissipated through the radiating fins, so that the heat conduction and heat dissipation effects are improved, and the service life of the power battery is prolonged. The use safety of the power battery is ensured; and through cooperation of the outer wear-resistant layer, the corrosion-resistant layer, the reinforcing layer, the high-temperature-resistant layer and the waterproof layer, the service life of the aluminum plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of power battery shells, in particular to an aluminum plate for a power battery shell. Background Art

[0002] The power battery shell is an important component of new energy vehicles. Its main function is to protect the battery cells inside the battery and prevent them from being affected by vibration, extrusion or even deformation in various application environments, thereby extending the service life of the battery. The power battery shell is mainly produced with aluminum plates as the material.

[0003] After searching, the patent number is CN208862056U, and the name is a utility model of a side aluminum plate of a square shell power battery module, including a side plate body. Through research and analysis, it is found that although it has the advantage of heat dissipation function, it still has the following disadvantages to a certain extent.

[0004] For example, because it does not have the function of good thermal conductivity and heat dissipation when in use, when the battery generates heat, the heat cannot be fully discharged, so the temperature inside the battery shell is high, affecting the heat dissipation of the power battery, and it does not have the function of increasing the service life of the aluminum plate, so when the power battery dissipates heat, it is easy to cause the temperature of the aluminum plate to rise. At the same time, it cannot reduce the corrosion of the aluminum plate by the outside world, which is easy to cause damage to the aluminum plate. In order to solve the above technical problems, we have designed an aluminum plate for a power battery shell. Utility Model Content

[0005] The purpose of the utility model is to provide an aluminum plate for a power battery shell, which has the advantages of good thermal conductivity and heat dissipation effects and can increase the service life of the aluminum plate, thereby solving the problems of not having good thermal conductivity and heat dissipation effects and not having the function of increasing the service life of the aluminum plate.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an aluminum plate for a power battery shell, comprising an aluminum plate body and a first connecting layer, a heat sink is welded to the top of the aluminum plate body, the first connecting layer comprises a corrosion-resistant layer, a second connecting layer is installed at the bottom of the corrosion-resistant layer, a third connecting layer is installed at the bottom of the second connecting layer, and the third connecting layer comprises a waterproof layer.

[0007] Preferably, the top of the corrosion-resistant layer is hot-melt connected to an outer heat-conducting layer, and the top of the outer heat-conducting layer is hot-melt connected to an outer wear-resistant layer.

[0008] Preferably, the second connecting layer comprises a reinforcing layer, the top of the reinforcing layer is hot-melt connected to the bottom of the corrosion-resistant layer, and the top of the waterproof layer is hot-melt connected to the high-temperature resistant layer.

[0009] Preferably, the bottom of the reinforcement layer is hot-melt connected to the inner heat-conducting layer, and the bottom of the inner heat-conducting layer is hot-melt connected to the top of the high-temperature resistant layer.

[0010] Preferably, the third connecting layer comprises an inner wear-resistant layer, and the top of the inner wear-resistant layer is hot-melt connected to the bottom of the waterproof layer.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model has the advantages of good heat conduction and heat dissipation effect through the cooperation of the heat sink, the outer heat conductive layer and the inner heat conductive layer. When the power battery generates heat, the heat generated by the power battery can be quickly conducted out through the inner heat conductive layer and the outer heat conductive layer, and then the heat is dissipated through the heat sink, thereby improving the effect of heat conduction and heat dissipation and ensuring the safety of the power battery.

[0013] 2. The utility model has the advantage of improving the service life of the aluminum plate by cooperating with the outer wear-resistant layer, the corrosion-resistant layer, the reinforcement layer, the high-temperature resistant layer and the waterproof layer. The reinforcement layer can increase the strength of the aluminum plate body, making the aluminum plate body less likely to be damaged. The high-temperature resistant layer can improve the high-temperature resistance of the aluminum plate body, so that the aluminum plate body will not be affected by high temperature. The outer wear-resistant layer and the inner wear-resistant layer can improve the wear resistance of the aluminum plate body, making the aluminum plate body more wear-resistant and less likely to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the partial explosion three-dimensional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the first connecting layer of the utility model;

[0017] Figure 4 This is a schematic diagram of the exploded three-dimensional structure of the second connection layer of the utility model;

[0018] Figure 5 It is a schematic diagram of the sectional three-dimensional structure of the third connecting layer of the utility model.

[0019] In the figure: 1. Aluminum plate body; 2. Heat sink; 3. First connection layer; 301. External wear-resistant layer; 302. External heat-conducting layer; 303. Corrosion-resistant layer; 4. Second connection layer; 401. Reinforcement layer; 402. Internal heat-conducting layer; 403. High temperature resistant layer; 5. Third connection layer; 501. Waterproof layer; 502. Internal wear-resistant layer. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 5, an aluminum plate for a power battery shell, comprising an aluminum plate body 1 and a first connecting layer 3, a heat sink 2 is welded on the top of the aluminum plate body 1, the first connecting layer 3 comprises a corrosion-resistant layer 303, a second connecting layer 4 is installed at the bottom of the corrosion-resistant layer 303, a third connecting layer 5 is installed at the bottom of the second connecting layer 4, and the third connecting layer 5 comprises a waterproof layer 501. By providing the heat sink 2, heat can be further dissipated, thereby improving the heat dissipation effect of the aluminum plate body 1;

[0021] See also Figure 2 and Figure 3 The top of the corrosion-resistant layer 303 is hot-melt connected with the outer heat-conducting layer 302, and the top of the outer heat-conducting layer 302 is hot-melt connected with the outer wear-resistant layer 301. By providing the corrosion-resistant layer 303, the corrosion resistance of the aluminum plate body 1 can be improved, so that the aluminum plate body 1 is not easily corroded, and the service life of the aluminum plate body 1 is increased;

[0022] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 The second connection layer 4 includes a reinforcing layer 401, the top of the reinforcing layer 401 is hot-melt-connected to the bottom of the corrosion-resistant layer 303, and the top of the waterproof layer 501 is hot-melt-connected to the high-temperature resistant layer 403. By providing the waterproof layer 501, the waterproof property of the aluminum plate body 1 can be increased, thereby improving the protection effect on the power battery;

[0023] See also Figure 4 The bottom of the reinforcing layer 401 is connected to the inner heat-conducting layer 402 by hot-melt, and the bottom of the inner heat-conducting layer 402 is connected to the top of the high-temperature resistant layer 403 by hot-melt;

[0024] See also Figure 5 The third connecting layer 5 includes an inner wear-resistant layer 502, and the top of the inner wear-resistant layer 502 is hot-melt connected to the bottom of the waterproof layer 501. By setting the inner wear-resistant layer 502, the wear of the power battery and the aluminum plate body 1 in contact can be effectively prevented, thereby improving the wear resistance of the inside of the aluminum plate body 1.

[0025] When in use, the heat in the power battery shell is conducted outward through the inner heat-conducting layer 402, and then the heat is further conducted outward through the outer heat-conducting layer 302, so that the heat sink 2 dissipates the discharged heat, thereby improving the effect of thermal conduction and heat dissipation, so that the heat generated by the power battery can be quickly discharged, and the power battery is protected. The outer wear-resistant layer 301 can increase the wear resistance of the exterior of the aluminum plate body 1, so that the exterior of the aluminum plate body 1 is not easily worn, thereby increasing the service life of the aluminum plate body 1. The corrosion-resistant layer 303 makes the aluminum plate body 1 not easily corroded, thereby ensuring the corrosion resistance of the aluminum plate body 1. The reinforcing layer 401 can ensure the strength of the aluminum plate body 1, thereby further ensuring the service life of the aluminum plate body 1.

[0026] In summary: the aluminum plate for the power battery shell is coordinated by the heat sink 2, the outer heat conductive layer 302, the inner heat conductive layer 402, the outer wear-resistant layer 301, the corrosion-resistant layer 303, the reinforcement layer 401, the high temperature resistant layer 403 and the waterproof layer 501, which solves the problem of not having good thermal conductivity and heat dissipation effects and not having the function of increasing the service life of the aluminum plate.

Claims

1. An aluminum plate for a power battery shell, comprising an aluminum plate body (1) and a first connecting layer (3), characterized in that: A heat sink (2) is welded to the top of the aluminum plate body (1); the first connection layer (3) includes a corrosion-resistant layer (303); a second connection layer (4) is installed at the bottom of the corrosion-resistant layer (303); a third connection layer (5) is installed at the bottom of the second connection layer (4); and the third connection layer (5) includes a waterproof layer (501).

2. The aluminum plate for a power battery shell according to claim 1, characterized in that: The top of the corrosion-resistant layer (303) is hot-melt-connected to the outer heat-conducting layer (302), and the top of the outer heat-conducting layer (302) is hot-melt-connected to the outer wear-resistant layer (301).

3. The aluminum plate for a power battery shell according to claim 1, characterized in that: The second connection layer (4) comprises a reinforcement layer (401), the top of the reinforcement layer (401) is hot-melt-connected to the bottom of the corrosion-resistant layer (303), and the top of the waterproof layer (501) is hot-melt-connected to the high-temperature resistant layer (403).

4. The aluminum plate for a power battery shell according to claim 3, characterized in that: The bottom of the reinforcing layer (401) is hot-melt-connected to the inner heat-conducting layer (402), and the bottom of the inner heat-conducting layer (402) is hot-melt-connected to the top of the high-temperature resistant layer (403).

5. The aluminum plate for a power battery shell according to claim 1, characterized in that: The third connecting layer (5) comprises an inner wear-resistant layer (502), and the top of the inner wear-resistant layer (502) is hot-melt-connected to the bottom of the waterproof layer (501).

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