Battery composite end plate

Abstract

The utility model discloses a kind of battery composite end plate, including first end plate main body, the side surface of first end plate main body is formed as the lamination surface of relative battery cell, first end plate main body is non-metallic material, further including second end plate main body, second end plate main body is metal material, first end plate main body is equipped with heat conduction hole that penetrates lamination surface, the second end plate main body is embedded in heat conduction hole, second end plate main body and first end plate main body are connected with reinforcing fixed component between two, when the reinforcing fixed component is in fixed state, the side surface of second end plate main body close to lamination surface is flush with lamination surface.The utility model has the following advantages and effects: the utility model has the double advantage of metal material and non-metallic material, while reducing material cost, the comprehensive performance of end plate itself is improved.

Description

Technical Field

[0001] This utility model relates to a new energy battery accessory, and more particularly to a battery composite end plate. Background Technology

[0002] In the field of new energy vehicles, the battery end plate is a core structural component in the battery module. It is installed at both ends of the battery module and its function is to fix the battery module, prevent vibration and impact during vehicle operation from affecting the battery module, buffer and protect the battery module, and also conduct heat and dissipate heat.

[0003] Currently, existing battery end plates are mainly divided into two categories: metallic materials and non-metallic materials, each with its unique advantages. Metallic materials are primarily characterized by high strength and excellent thermal conductivity, but they are also more expensive and relatively heavy. Non-metallic materials, on the other hand, are lightweight and have lower costs, but they are less effective in terms of strength and thermal conductivity. To combine the advantages of these two different materials and achieve a complementary approach, this improved solution was developed. Utility Model Content

[0004] The purpose of this invention is to provide a battery composite end plate that combines the advantages of both metallic and non-metallic materials, thereby reducing material costs while improving the overall performance of the end plate itself.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a battery composite end plate, including a first end plate body, one side of the first end plate body being formed as a bonding surface for contacting a battery cell, the first end plate body being made of non-metallic material, and also including a second end plate body, the second end plate body being made of metallic material, the first end plate body being provided with a heat-conducting hole penetrating the bonding surface, the second end plate body being embedded in the heat-conducting hole, and a reinforcing fixing component connecting the second end plate body and the first end plate body, when the reinforcing fixing component is in a fixed state, the side of the second end plate body near the bonding surface is flush with the bonding surface.

[0006] By adopting the above technical solution, and by placing a second end plate body made of metal material inside the heat-conducting holes and bonding it to the battery cell, the heat on the battery cell can be quickly conducted to the second end plate body, thereby improving the thermal conductivity of the end plate. Furthermore, by connecting the first end plate body with a reinforcing fixing component, the strength of the first end plate body is enhanced, allowing the second end plate body and the reinforcing fixing component to simultaneously bear the force on the first end plate body. This structure also significantly reduces the amount of metal material used. By combining metal and non-metal materials to leverage their respective advantages, the material cost of the end plate is reduced, and its overall performance is improved.

[0007] The first end plate body includes a side plate and an end plate frame surrounding the outer periphery of the side plate, and the reinforcing fixing assembly includes a fixing structure connected to the end plate frame and a reinforcing rib connecting the fixing structure to the second end plate body.

[0008] By adopting the above technical solution, the second end plate body is connected to the end plate frame position by means of a reinforcing rib and a fixing structure. This connection method can improve the structural strength of the connection between the first end plate body and the second end plate body, thereby increasing the limit of the load-bearing capacity of the two. It also enables the second end plate body, together with the reinforcing fixing component, to play a more effective role in strengthening the structure of the first end plate body.

[0009] The fixing structure is further configured such that: the fixing structure includes a fixing head with a fixing hole and a fixing rib, and a fixing shaft that passes through the fixing hole and the end plate frame in sequence; when the fixing shaft passes through the fixing hole and the end plate frame, the axis of the fixing shaft is perpendicular to the penetration direction of the heat conduction hole.

[0010] By adopting the above technical solution, the fixed shaft passes through the fixed hole and the end plate frame to realize the fixing operation between the second end plate body and the first end plate body.

[0011] The configuration is further defined as follows: the end plate frame has a connection notch at the position corresponding to the fixed structure; the fixed head includes an upper head and a lower head that is coaxial with and spaced apart from the upper head; the fixed shaft includes an upper shaft section and a lower shaft section; a positioning spring is connected between the upper shaft section and the lower shaft section; the upper shaft section passes through the upper head and the end plate frame in sequence, and the lower shaft section passes through the lower head and the end plate frame in sequence.

[0012] By adopting the above technical solution, after compressing the positioning spring, the upper shaft section is inserted into the upper head and the end plate frame in sequence, and the lower shaft section is inserted into the lower head and the end plate frame in sequence, thereby completing the installation and fixing operation. This method is convenient for disassembly and assembly and can play a more effective strengthening role.

[0013] The configuration is further defined as follows: a reinforcing frame is provided on the side wall of the second end plate body away from the contact surface, and a number of heat sinks are distributed on the side wall of the second end plate body away from the contact surface.

[0014] By adopting the above technical solution, the reinforcement frame further enhances the structural strength of the second end plate body, and the heat sink improves the thermal conductivity of the second end plate body.

[0015] A further configuration is provided: each of the heat sinks is connected to a reinforcing frame.

[0016] By adopting the above technical solutions, the structural strength of the heat sink is improved.

[0017] Further configured as follows: the reinforcing rib includes an upper rib connecting the upper head to the main body of the second end plate and a lower rib connecting the lower head to the main body of the second end plate, and a plurality of reinforcing transverse ribs are connected between the upper rib and the lower rib.

[0018] By adopting the above technical solution, the structural strength of the reinforcing ribs is further enhanced by the addition of the transverse ribs.

[0019] Further configuration: the reinforcing rib is connected to the reinforcing frame.

[0020] By adopting the above technical solutions, the connection area is increased, thereby improving the structural strength.

[0021] In summary, this utility model has the following beneficial effects: it combines the advantages of both metallic and non-metallic materials, thereby reducing material costs while improving the overall performance of the end plate itself. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a structural schematic diagram from another perspective of the embodiment; Figure 3 This is a partial exploded view of an example.

[0023] In the diagram: 1. First end plate body; 1.1. Side plate; 1.2. End plate frame; 2. Fitting surface; 3. Second end plate body; 4. Heat conduction hole; 5. Reinforcing fixing component; 51. Upper rib; 52. Upper head; 53. Lower head; 54. Upper shaft section; 55. Lower shaft section; 56. Lower rib; 6. Connecting notch; 7. Positioning spring; 8. Reinforcing frame; 9. Heat sink; 10. Reinforcing transverse rib. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] refer to Figures 1 to 3 A battery composite end plate includes a first end plate body 1, one side of which forms a bonding surface 2 for contacting a battery cell. The first end plate body 1 is made of a non-metallic material, specifically engineering plastic. It also includes a second end plate body 3, which is made of a metallic material. A heat-conducting hole 4 penetrating the bonding surface 2 is formed in the center of the first end plate body 1, and the second end plate body 3 is embedded in the heat-conducting hole 4. A reinforcing fixing assembly 5 connects the second end plate body 3 and the first end plate body 1, and two sets of the reinforcing fixing assembly 5 are symmetrically arranged. When the reinforcing fixing assembly 5 is in a fixed state, the side of the second end plate body 3 near the bonding surface 2 is flush with the bonding surface 2.

[0026] The first end plate body 1 includes a side plate 1.1 and an end plate frame 1.2 surrounding the outer periphery of the side plate 1.1, with the side plate 1.1 and the end plate frame 1.2 integrally connected. The reinforcing and fixing assembly 5 includes a fixing structure connected to the end plate frame 1.2 and a reinforcing rib connecting the fixing structure to the second end plate body 3.

[0027] The fixing structure includes a fixing head with a fixing hole and a fixing connection reinforcing rib, and a fixing shaft that passes through the fixing hole and the end plate frame 1.2 in sequence. When the fixing shaft passes through the fixing hole and the end plate frame 1.2, the axis of the fixing shaft is perpendicular to the penetration direction of the heat conduction hole 4.

[0028] The end plate frame 1.2 has a connection notch 6 formed at the position corresponding to the fixed structure. The fixed head includes an upper head 52 and a lower head 53 that is coaxial with the upper head 52 and spaced apart. The fixed shaft includes an upper shaft section 54 and a lower shaft section 55. A positioning spring 7 is fixedly connected between the upper shaft section 54 and the lower shaft section 55. The upper shaft section 54 passes through the upper head 52 and the end plate frame 1.2 in sequence, and the lower shaft section 55 passes through the lower head 53 and the end plate frame 1.2 in sequence.

[0029] The reinforcing ribs include an upper rib 51 integrally connecting the upper head 52 and the second end plate body 3, and a lower rib 56 integrally connecting the lower head 53 and the second end plate body 3. Multiple reinforcing transverse ribs 10 are integrally connected between the upper rib 51 and the lower rib 56.

[0030] A reinforcing frame 8 is integrally formed on the side wall of the second end plate body 3 away from the contact surface 2, surrounding the outer periphery of the second end plate body 3. Several heat sinks 9 are integrally distributed on the side wall of the second end plate body 3 away from the contact surface 2. Each heat sink 9 is integrally connected to the reinforcing frame 8. The upper rib 51 is integrally connected to the reinforcing frame 8, and the lower rib 56 is integrally connected to the reinforcing frame 8. The upper head 52, lower head 53, upper rib 51, lower rib 56, reinforcing cross rib 10, reinforcing frame 8, heat sinks 9, and the second end plate body 3 are all made of aluminum alloy.

[0031] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A battery composite end plate, comprising a first end plate body (1), wherein one side of the first end plate body (1) is formed as a bonding surface (2) for contacting a battery cell, the first end plate body (1) being made of a non-metallic material, characterized in that: It also includes a second end plate body (3), which is made of metal. The first end plate body (1) has a heat-conducting hole (4) that penetrates the mating surface (2). The second end plate body (3) is embedded in the heat-conducting hole (4). A reinforcing fixing component (5) is connected between the second end plate body (3) and the first end plate body (1). When the reinforcing fixing component (5) is in a fixed state, the side of the second end plate body (3) close to the mating surface (2) is flush with the mating surface (2).

2. The battery composite end plate according to claim 1, characterized in that: The first end plate body (1) includes a side plate (1.1) and an end plate frame (1.2) surrounding the outer periphery of the side plate (1.1). The reinforcing fixing component (5) includes a fixing structure connected to the end plate frame (1.2) and a reinforcing rib connecting the fixing structure to the second end plate body (3).

3. The battery composite end plate according to claim 2, characterized in that: The fixing structure includes a fixing head with a fixing hole and a fixing connection reinforcing rib, and a fixing shaft that passes through the fixing hole and the end plate frame (1.2) in sequence. When the fixing shaft passes through the fixing hole and the end plate frame (1.2), the axis of the fixing shaft is perpendicular to the penetration direction of the heat conduction hole (4).

4. The battery composite end plate according to claim 3, characterized in that: The end plate frame (1.2) has a connection notch (6) corresponding to the position of the fixed structure. The fixed head includes an upper head (52) and a lower head (53) that is coaxial with the upper head (52) and spaced apart. The fixed shaft includes an upper shaft section (54) and a lower shaft section (55). A positioning spring (7) is connected between the upper shaft section (54) and the lower shaft section (55). The upper shaft section (54) passes through the upper head (52) and the end plate frame (1.2) in sequence, and the lower shaft section (55) passes through the lower head (53) and the end plate frame (1.2) in sequence.

5. The battery composite end plate according to claim 2, characterized in that: The second end plate body (3) has a reinforcing frame (8) surrounding the outer periphery of the second end plate body (3) on one side wall away from the contact surface (2), and a number of heat sinks (9) are distributed on one side wall away from the contact surface (2).

6. The battery composite end plate according to claim 5, characterized in that: Each of the heat sinks (9) is connected to the reinforcing frame (8).

7. The battery composite end plate according to claim 4, characterized in that: The reinforcing ribs include an upper rib (51) connecting the upper head (52) and the second end plate body (3) and a lower rib (56) connecting the lower head (53) and the second end plate body (3), and a plurality of reinforcing transverse ribs (10) are connected between the upper rib (51) and the lower rib (56).

8. The battery composite end plate according to claim 5, characterized in that: The reinforcing rib connects to the reinforcing frame (8).

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