Power battery module pulling plate

Abstract

The utility model provides a power battery module pulling plate, and relates to the technical field of power batteries, the power battery module pulling plate comprises a pulling plate main body, the middle part of the pulling plate main body is provided with an opening, and the opening is internally provided with a center plate. The middle of the pulling plate body made of the aluminum material is hollowed out to form the opening, the center plate with relatively low cost is arranged in the opening, and the step of surface hot pressing of PI and PET films is omitted, so that the cost of raw materials is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, and more specifically, to a power battery module pull plate. Background Technology

[0002] In the current field of battery module design and manufacturing, the pull plate, as an important component for connecting and fixing battery cells, has its material selection and manufacturing process directly affecting the overall performance, safety and cost of the battery module.

[0003] In existing technologies, battery module pull plates are mainly made of aluminum. These materials have good mechanical strength and corrosion resistance, which can meet the strength and stability requirements of battery modules during use. However, in order to further improve the insulation performance and wear resistance of the pull plate, a layer of polyimide (PI) film or polyethylene terephthalate (PET) film is usually hot-pressed onto the surface of the aluminum material. Although this treatment method effectively improves the overall performance of the pull plate, the additional material cost and hot-pressing process undoubtedly increase the cost of the entire production process. Therefore, we propose an improvement to this, namely a power battery module pull plate. Summary of the Invention

[0004] The purpose of this invention is to address the problem of high cost of existing sheet metal sheets.

[0005] To achieve the above-mentioned objectives, this invention provides a power battery module pull plate to improve the aforementioned problems.

[0006] The application is as follows:

[0007] A power battery module pull plate includes a pull plate body, an opening in the middle of the pull plate body, and a center plate installed in the opening.

[0008] As a preferred technical solution of this application, the raw material cost of the center plate is less than the raw material cost of the main body of the pull plate.

[0009] As a preferred technical solution of this application, a limiting member is provided on the center plate, which is used to limit the center plate.

[0010] As a preferred technical solution of this application, the limiting member is a baffle fixedly installed on the inner side of the center plate, and one side of the baffle is in contact with the main body of the pull plate.

[0011] As a preferred technical solution of this application, the limiting member includes a limiting plate fixedly installed in the opening and a limiting groove opened on the outer side of the center plate, wherein the inner wall of the limiting groove is inserted into the outer surface of the limiting plate.

[0012] As a preferred technical solution of this application, the limiting plate and the limiting groove are both cross-shaped, and the inner wall of the limiting groove and the outer surface of the limiting plate are bonded together with glue.

[0013] As a preferred technical solution of this application, the limiting member includes a plurality of support plates disposed on the inner wall of the opening and a plurality of grooves formed on the outer side of the center plate, wherein the interior of the grooves is inserted into the outer surface of the support plates.

[0014] As a preferred technical solution of this application, the support plate and the pull plate body are integrally formed, and the support plate and the center plate are connected by bolts.

[0015] As a preferred technical solution of this application, the central plate is provided with a number of heat dissipation vents.

[0016] As a preferred technical solution of this application, mounting plates are fixedly connected to both ends of the main body of the pull plate, and the mounting plates are provided with a plurality of mounting holes.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the scheme of this application:

[0019] To address the issue of high cost of existing sheet metal sheets, this application proposes a design that hollows out the center of the sheet metal sheet body made of aluminum to create an opening, and places a relatively low-cost center plate inside the opening. Furthermore, it eliminates the step of hot-pressing PI and PET films onto the surface, thereby significantly reducing raw material costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the power battery module pull plate provided in this application;

[0021] Figure 2 A schematic diagram of the open structure of the power battery module pull plate provided in this application;

[0022] Figure 3 This is a schematic diagram of the baffle of the power battery module pull plate provided in this application;

[0023] Figure 4 For the power battery module pull plate provided in this application Figure 3 Exploded view from below;

[0024] Figure 5 This is a schematic diagram of the heat dissipation vent of the power battery module pull plate provided in this application;

[0025] Figure 6 For the power battery module pull plate provided in this application Figure 5 Exploded view from below;

[0026] Figure 7 This is a schematic diagram of the mounting holes of the power battery module pull plate provided in this application;

[0027] Figure 8 For the power battery module pull plate provided in this application Figure 7 An exploded view taken from below.

[0028] The image shows:

[0029] 1. Pull plate body; 101. Mounting plate; 102. Mounting hole; 2. Opening; 3. Center plate; 4. Baffle; 5. Limiting groove; 501. Limiting plate; 6. Groove; 7. Support plate; 8. Heat dissipation vent. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0031] As described in the background section, in the prior art, battery module plates are mainly made of aluminum. These materials have good mechanical strength and corrosion resistance, which can meet the strength and stability requirements of battery modules during use. However, in order to further improve the insulation performance and wear resistance of the plate, a layer of polyimide (PI) film or polyethylene terephthalate (PET) film is usually hot-pressed onto the surface of the aluminum. Although this treatment effectively improves the overall performance of the plate, the additional material cost and hot-pressing process undoubtedly increase the cost of the entire production process.

[0032] To solve this technical problem, this utility model provides a power battery module pull plate.

[0033] For details, please refer to Figures 1-2 The power battery module pull plate specifically includes:

[0034] The main body of the pull plate is 1, and an opening 2 is provided in the middle of the main body of the pull plate 1. A center plate 3 is installed in the opening 2.

[0035] The power battery module pull plate provided by this utility model has a hollowed-out opening 2 in the middle of the pull plate body 1 made of aluminum material, and a relatively low-cost center plate 3 is set in the opening 2. The step of hot pressing PI and PET film on the surface is eliminated, which greatly reduces the cost of raw materials.

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0037] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] Example 1, please refer to Figures 1-2 A power battery module pull plate includes a pull plate body 1, an opening 2 in the middle of the pull plate body 1, and a center plate 3 installed in the opening 2. This application achieves the opening 2 by hollowing out the middle of the pull plate body 1 made of aluminum material, and setting the relatively low-cost center plate 3 in the opening 2, and eliminating the step of hot pressing PI and PET films on the surface, which greatly reduces the cost of raw materials. The opening 2 is set by stamping.

[0040] Furthermore, the raw material cost of the center plate 3 is less than that of the pull plate body 1. The pull plate body 1 is made of aluminum, while the center plate 3 is made of PVC plastic, PP plastic, PS plastic or PCM plastic, etc. The cost of PVC plastic, PP plastic, PS plastic or PCM plastic is less than that of aluminum.

[0041] Example 2 further optimizes the power battery module pull plate provided in Example 1. Specifically, a limiting component is provided on the center plate 3 to limit the center plate 3 and improve the stability of the center plate 3 in the opening 2.

[0042] Example 3 further optimizes the power battery module pull plate provided in Example 2, specifically, as follows: Figure 3 and 4 As shown, the limiting component is a baffle 4 fixedly installed on the inner side of the center plate 3. One side of the baffle 4 is in contact with the pull plate body 1. The baffle 4 is made of the same material as the center plate 3, and the baffle 4 and the center plate 3 are integrally set. The baffle 4 can isolate the pull plate body 1 from the battery module during use, so that there is no need to paste PI film or PET film.

[0043] Example 4 further optimizes the power battery module pull plate provided in Example 2, specifically, as follows: Figure 5 and Figure 6As shown, the limiting component includes a limiting plate 501 fixedly installed in the opening 2 and a limiting groove 5 opened on the outer side of the center plate 3. The inner wall of the limiting groove 5 is inserted into the outer surface of the limiting plate 501. The limiting groove 5 and the limiting plate 501 cooperate with each other to support and limit the center plate 3, thereby improving the stability of the center plate 3 during use.

[0044] Furthermore, such as Figure 6 As shown, both the limiting plate 501 and the limiting groove 5 are cross-shaped, and the inner wall of the limiting groove 5 and the outer surface of the limiting plate 501 are bonded together with glue. The glue bonding can improve the firmness of the connection between the limiting groove 5 and the limiting plate 501.

[0045] Example 5 further optimizes the power battery module pull plate provided in Example 2, specifically, as follows: Figure 8 As shown, the limiting component includes several support plates 7 disposed on the inner wall of the opening 2 and several grooves 6 opened on the outer side of the center plate 3. The inside of the grooves 6 is inserted into the outer surface of the support plates 7. The grooves 6 and the support plates 7 cooperate with each other to support and limit the center plate 3, thereby improving the stability of the center plate 3 during use.

[0046] Furthermore, such as Figure 8 As shown, the support plate 7 and the pull plate body 1 are integrally set, and the support plate 7 and the center plate 3 are connected by bolts to improve the firmness of the connection between the center plate 3 and the support plate 7.

[0047] Example 6 further optimizes the power battery module pull plate provided in the above embodiments, such as... Figure 5 As shown, the center plate 3 has several heat dissipation holes 8, which facilitate heat dissipation.

[0048] Example 7 further optimizes the power battery module pull plate provided in the above embodiments, such as... Figures 1-8 As shown, mounting plates 101 are fixedly connected to both ends of the pull plate body 1. The mounting plates 101 have several mounting holes 102. The mounting plates 101 and the mounting holes 102 are used to install the pull plate body 1.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A power battery module pull plate, characterized in that, The utility model relates to a pull plate body (1), the middle part of pull plate body (1) is equipped with the open mouth (2), the open mouth (2) is installed with the center plate (3), the center plate (3) is provided with the stop piece, and the stop piece is used for the limiting of center plate (3).

2. The power battery module pull plate according to claim 1, characterized in that, The stop piece is the baffle (4) fixedly installed on the inner side of center plate (3), one side of baffle (4) is attached with pull plate body (1).

3. The power battery module pull plate according to claim 1, characterized in that, The stop piece includes the limiting plate (501) fixedly installed in the open mouth (2) and the limiting slot (5) opened on the outer side of center plate (3), and the inner wall of limiting slot (5) and the outer surface of limiting plate (501) are inserted.

4. The power battery module pull plate according to claim 3, characterized in that, The shape of limiting plate (501) and limiting slot (5) is all cross, and the inner wall of limiting slot (5) and the outer surface of limiting plate (501) are bonded through glue.

5. The power battery module pull plate according to claim 1, characterized in that, The stop piece includes a plurality of support plates (7) arranged on the inner wall of open mouth (2) and a plurality of recesses (6) opened on the outer side of center plate (3), and the inside of recess (6) and the outer surface of support plate (7) are inserted.

6. The power battery module pull plate according to claim 5, characterized in that, The support plate (7) and pull plate body (1) are integrally arranged, and the support plate (7) and center plate (3) are connected through bolts.

7. The power battery module pull plate according to any one of claims 1-6, characterized in that, The center plate (3) is equipped with a plurality of heat dissipation openings (8).

8. The power battery module pull plate according to any one of claims 1-6, characterized in that, Both ends of pull plate body (1) are fixedly connected with mounting plate (101), and mounting plate (101) is equipped with a plurality of mounting holes (102).

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