New energy battery module side plate structure

Abstract

The utility model discloses new energy battery module side plate structure, including battery side plate main part, the outer end of battery side plate main part is provided with the curved and bent part, the curved and bent part distribution sets up in the left and right two ends outer surface of battery side plate main part, the outer end surface of battery side plate main part is seted up and has inlayed buffer chamber, the inner side surface fixedly connected with heat dissipation buffer module of inlayed buffer chamber, heat dissipation buffer module evenly distributes and fixes in the inlayed buffer chamber department inner side surface of battery side plate main part, the inner side surface of inlayed buffer chamber covers and has buffer rubber layer, through battery side plate main part outside setting heat dissipation buffer module and inlayed buffer chamber filling's buffer rubber layer, it can pass through heat dissipation buffer module and quickly radiate outward, improve the heat dissipation performance, and the outer layer cover box battery side plate main part directly forms the buffer layer, and when impact and puncture can slow down the pressure, improve the buffering performance.

Description

Technical Field

[0001] This utility model relates to the field of side panel structure of new energy battery modules, and more specifically, to the side panel structure of new energy battery modules. Background Technology

[0002] Currently, the top-side buffer heat dissipation sealing plate is a process that fixes the battery cell to the outer casing, isolating the battery cell from the outside environment and effectively storing electrical energy inside. Generally, isolation is required between the battery cell and the casing to prevent short circuits and fires. The main processes of the top-side buffer heat dissipation sealing plate include determining the heat dissipation sealing plate method, manufacturing the heat dissipation sealing plate mold, preparing the heat dissipation sealing plate material, top-side buffer heat dissipation sealing plate, pressing plate, airtightness testing, and marking. Today, with the continuous expansion of battery applications, top-side buffer heat dissipation sealing plate technology is also constantly innovating and upgrading. For example, it adopts safer and more reliable shell materials, buffer heat dissipation sealing plate processes, and sealing materials. Power battery modules have replaced traditional power energy in more and more fields. Power battery modules typically include two opposing battery side plate bodies and two opposing end plates. The battery side plate bodies and end plates together form a housing space for the battery. The battery side plate bodies and end plates are connected by laser welding. The battery side plate bodies are bonded and fixed to the side of the battery cell by applying structural adhesive. Because the adhesive is fluid, it may overflow into the welding area between the end plate and the battery side plate body during module assembly, causing welding quality problems and affecting the overall structural strength of the module. Furthermore, during long-term use, battery modules are subjected to harsh conditions such as mechanical vibration and impact, causing collisions and friction between the battery side panel and components such as the battery cells. This can damage the insulating film of the battery cells, leading to contact between the charged parts of the cells and the battery side panel. To solve this problem, an insulating coating is usually sprayed onto the inner wall of the battery side panel. However, this method increases the height of the battery module. Due to the limited installation space, the insulating coating sprayed onto the inner wall of the battery side panel is insufficient to achieve the purpose of insulating the cells from the battery side panel, resulting in poor performance. In the prior art, such as the authorized announcement number CN213459970U, this utility model relates to the field of power battery technology and discloses a battery module battery side plate main body assembly and battery module. The battery module side panel assembly includes a battery side panel body, an insulating film, and two bent portions. The two bent portions are symmetrically located at both ends of the battery side panel body and connected to it. An overflow groove is provided on the side of the bent portion closest to the battery side panel body. An insulating film is provided on the surface, upper surface, and lower surface of the battery side panel body closest to the battery. By providing an overflow groove on the side of the bent portion closest to the battery side panel body, when the battery is bonded to the battery module side panel assembly with adhesive, the liquid adhesive can flow into the overflow groove, preventing it from overflowing into the welding area between the end plate and the battery module side panel assembly. This ensures the welding quality between the battery module side panel assembly and the end plate, as well as the structural strength of the battery module. The insulating film ensures the insulation performance between the battery module side panel assembly and the battery. The aforementioned patents have solved the welding end problem, and their insulating film ensures insulation performance. However, when the battery side panel is encapsulated on the side of the battery module, it completely covers the battery during use. The car's power battery generates a lot of heat during use, and the heat dissipation efficiency of the existing battery side panel structure is low. In addition, the impact resistance of the battery side panel mainly depends on its material and structural design. Battery side panels are usually made of high-strength aluminum alloy materials, such as 5083 aluminum plate. This material has high strength, good plasticity and corrosion resistance, and is suitable for stamping and forming of battery side panels. However, the existing battery side panel body is also a simple single-layer plate structure, which has poor impact and puncture resistance and does not have cushioning performance. Utility Model Content

[0003] To address the problems existing in the prior art, the purpose of this utility model is to provide a side panel structure for a new energy battery module. By setting a heat dissipation buffer module and an embedded buffer cavity filled with a buffer adhesive layer on the outer side of the battery side panel, heat dissipation buffer module can quickly dissipate heat to the outside, improving heat dissipation performance. Moreover, the outer cover box of the battery side panel directly forms a buffer layer, which can reduce pressure and improve buffering performance during impact and puncture.

[0004] To solve the above problems, the present invention adopts the following technical solution.

[0005] The side panel structure of a new energy battery module includes a battery side panel body. The outer end of the battery side panel body has a bending section, which is distributed on the left and right outer surfaces of the battery side panel body. An embedded buffer cavity is formed on the outer surface of the battery side panel body. A heat dissipation buffer module is fixedly connected to the inner surface of the embedded buffer cavity. The heat dissipation buffer module is evenly distributed and fixed on the inner surface of the embedded buffer cavity of the battery side panel body. The inner surface of the embedded buffer cavity is covered with a buffer adhesive layer. Through the heat dissipation buffer module on the outside of the battery side panel body and the buffer adhesive layer filling the embedded buffer cavity, heat dissipation can be quickly dissipated outwards through the heat dissipation buffer module, improving heat dissipation performance. Furthermore, the outer cover box directly forms a buffer layer with the battery side panel body, which can reduce pressure and improve buffering performance during impact and puncture.

[0006] Furthermore, the heat dissipation buffer module adopts a square block structure, and its heat dissipation buffer module is made of aluminum block material (aluminum heat dissipation has the advantages of being lightweight, inexpensive, and easy to process. In addition, aluminum has good corrosion resistance and will not cause corrosion or oxidation even when exposed to air for a long time. In comparison, although aluminum has a lower thermal conductivity, its heat capacity is smaller, and its density and cost are lower, which makes aluminum heat dissipation radiators have an advantage in heat dissipation area, thereby improving the overall heat dissipation performance).

[0007] Furthermore, the heat dissipation buffer modules are evenly arrayed and distributed on the inner surface of the embedded buffer cavity in the main body of the battery side plate.

[0008] Furthermore, the inner surface of the battery side plate body is covered with an insulating film layer.

[0009] Furthermore, a buffer heat dissipation sealing plate is fixedly connected to the outer surface of the battery side plate body and the heat dissipation buffer module.

[0010] Furthermore, the buffer layer is entirely attached to the inner surface of the embedded buffer cavity, and the buffer layer is a self-healing tire rubber layer.

[0011] Furthermore, the heat dissipation buffer module extends out of the outer end surface of the buffer heat dissipation seal plate.

[0012] Compared with existing technologies, the advantages of this utility model are: (1) A heat dissipation buffer module and a buffer adhesive layer filled with an embedded buffer cavity are provided on the outside of the battery side panel. The heat dissipation buffer module can quickly dissipate heat to the outside, improving heat dissipation performance. The outer cover box battery side panel directly forms a buffer layer, which can reduce pressure and improve buffer performance during impact and puncture. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a rear view of the overall structure of this utility model; Figure 3 This is a front view of the overall structure of this utility model; Figure 4 This is a front sectional view of the overall structure of this utility model; Figure 5 This is a top view of the overall structure of this utility model; Figure 6 This is a side sectional view of the overall structure of this utility model.

[0014] Explanation of the labels in the diagram: 1 Battery side panel body, 2 Bending section, 3 Embedded buffer cavity, 4 Heat dissipation buffer module, 5 Buffer adhesive layer, 6 Buffer heat dissipation sealing plate, 100 Insulating film layer. Detailed Implementation

[0015] 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.

[0016] Example 1: Please refer to Figure 1-6 The side panel structure of the new energy battery module includes a battery side panel body 1. The outer end of the battery side panel body 1 is provided with a bending part 2. The bending part 2 is distributed on the outer surface of the left and right ends of the battery side panel body 1. An embedded buffer cavity 3 is opened on the outer end surface of the battery side panel body 1. A heat dissipation buffer module 4 is fixedly connected to the inner surface of the embedded buffer cavity 3. The heat dissipation buffer module 4 is evenly distributed and fixed on the inner surface of the embedded buffer cavity 3 of the battery side panel body 1. The inner surface of the embedded buffer cavity 3 is covered with a buffer adhesive layer 5. Through the heat dissipation buffer module and the buffer adhesive layer filled in the embedded buffer cavity on the outside of the battery side panel body 1, it can quickly dissipate heat to the outside through the heat dissipation buffer module, thereby improving heat dissipation performance. Moreover, the outer cover box of the battery side panel body directly forms a buffer layer, which can reduce pressure and improve buffering performance during impact and puncture. The heat dissipation buffer module 4 adopts a square block structure and is made of aluminum (aluminum heat sinks have the advantages of being lightweight, inexpensive, and easy to process. In addition, aluminum has good corrosion resistance and will not corrode or oxidize even when exposed to air for a long time. In comparison, although aluminum has a lower thermal conductivity, its heat capacity is smaller, and its density and cost are lower, giving aluminum heat sinks an advantage in heat dissipation area, thereby improving overall heat dissipation performance). Aluminum has good heat absorption properties, which can quickly conduct the heat of the battery outwards, improving heat dissipation performance (and when the heat dissipation buffer module 4 is evenly distributed, it can also provide cushioning protection during impact). The heat dissipation buffer modules 4 are evenly arrayed and distributed on the inner surface of the embedded buffer cavity 3 of the battery side plate body 1; the distribution is uniform, and the heat absorption and dissipation are uniform and comprehensive; the inner surface of the battery side plate body 1 is covered with an insulating film layer 100 (the insulating film is a thin film that can ensure good electrical insulation. This film should have a high resistivity (higher than 10¹⁰ Ω·cm) and breakdown field strength, while the electronic structure is characterized by a large band gap. In order to be used for high-frequency insulation, the material is also required to have low dielectric loss); it can be used for insulation after being encapsulated outside the battery module; the outer surfaces of the battery side plate body 1 and the heat dissipation buffer modules 4 are fixedly connected to a buffer heat dissipation sealing plate 6; it is convenient for support and heat absorption; The buffer layer 5 is entirely attached to the inner surface of the embedded buffer cavity 3, and the buffer layer 5 adopts a self-healing tire rubber layer; it facilitates buffering. During use, when the battery side plate body 1 is impacted and punctured, the outer heat dissipation buffer module 4 and the buffer heat dissipation sealing plate 6 can first provide support and resist impact, and its embedded buffer cavity 3 can provide buffering. When punctured, when the buffer heat dissipation sealing plate 6 is punctured, it can be further buffered by the buffer layer 5 to reduce the puncture force of the puncturing part. Its heat dissipation buffer module 4 extends out of the outer end surface of the buffer heat dissipation sealing plate 6; it can generate heat outward, which facilitates heat dissipation.

Claims

1. A side panel structure for a new energy battery module, comprising a battery side panel body (1), characterized in that: The outer end of the battery side plate body (1) is provided with a bending part (2), the bending part (2) is distributed on the outer surface of the left and right ends of the battery side plate body (1), the outer end surface of the battery side plate body (1) is provided with an embedded buffer cavity (3), the inner surface of the embedded buffer cavity (3) is fixedly connected with a heat dissipation buffer module (4), the heat dissipation buffer module (4) is evenly distributed and fixed on the inner surface of the embedded buffer cavity (3) of the battery side plate body (1), and the inner surface of the embedded buffer cavity (3) is covered with a buffer adhesive layer (5).

2. The side plate structure of the new energy battery module according to claim 1, characterized in that: The heat dissipation buffer module (4) adopts a square block structure and is made of aluminum block material.

3. The side plate structure of the new energy battery module according to claim 1, characterized in that: The heat dissipation buffer module (4) is evenly arrayed and distributed on the inner surface of the embedded buffer cavity (3) of the battery side plate body (1).

4. The side plate structure of the new energy battery module according to claim 1, characterized in that: The inner end surface of the battery side plate body (1) is covered with an insulating film layer (100).

5. The side plate structure of the new energy battery module according to claim 1, characterized in that: The outer surfaces of the battery side panel body (1) and the heat dissipation buffer module (4) are fixedly connected to a buffer heat dissipation sealing plate (6).

6. The side plate structure of the new energy battery module according to claim 1, characterized in that: The buffer layer (5) is attached to the inner surface of the embedded buffer cavity (3), and the buffer layer (5) is a self-healing tire rubber layer.

7. The side plate structure of the new energy battery module according to claim 1, characterized in that: The heat dissipation buffer module (4) extends out of the outer end surface of the buffer heat dissipation sealing plate (6).

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