Battery module end plate structure and shell structure

Abstract

The utility model discloses a battery module end plate structure and a shell structure, and belongs to the technical field of battery modules. The end plate structure comprises a first end plate, a second end plate and an end plate connecting plate, the first end plate and the second end plate are oppositely arranged, the first end plate and the second end plate are fixed to the two sides of the end plate connecting plate respectively, the first end plate and the second end plate are both perpendicular to the end plate connecting plate, and the upper edge of the second end plate is flush with the upper edge of the second end plate; inserting grooves are formed in the upper edges of the first end plate and the second end plate, so that a clamping arm used for clamping a battery core group can embed the battery core group between the first end plate and the second end plate through the inserting grooves, and the inserting grooves extend in the height direction of the first end plate or the second end plate. According to the end plate structure of the battery module disclosed by the utility model, the insertion grooves are formed in the upper edges of the first end plate and the second end plate, and the clamping arms are used for embedding the battery core group between the first end plate and the second end plate through the insertion grooves, so that manual assembly is not needed, the production efficiency is favorably improved, and the production cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and in particular to an end plate structure and a shell structure of a battery module. Background Art

[0002] Battery modules are usually used as energy sources for mobile devices, such as electric vehicles, hybrid vehicles, and power equipment. Battery modules are generally composed of a shell structure and a number of battery core groups placed in the shell structure, and the shell usually includes end plates, side plates, and top plates. Figure 1 As shown, it shows a common end plate structure. When assembling a battery core group, it is necessary to first arrange the battery cells in parallel to form a battery core group, and then place the battery core group between the end plates. Since the above process is mostly performed manually, it requires more workers, resulting in increased manufacturing costs and reduced productivity of battery modules. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a battery module end plate structure. Since the upper edges of the first end plate and the second end plate are provided with insertion grooves, the clamping arm embeds the battery core group between the first end plate and the second end plate through the insertion groove, and no manual assembly is required, which is beneficial to improving production efficiency and reducing production costs.

[0004] The technical solution of the utility model is as follows:

[0005] A battery module end plate structure, comprising a first end plate, a second end plate and an end plate connecting plate, wherein the first end plate and the second end plate are arranged opposite to each other, and the first end plate and the second end plate are respectively fixed on both sides of the end plate connecting plate, the first end plate and the second end plate are both arranged vertically with the end plate connecting plate, and the upper edges of the first end plate and the second end plate are flush; the upper edges of the first end plate and the second end plate are both provided with insertion grooves, so that a clamping arm for clamping a battery core group can embed the battery core group between the first end plate and the second end plate through the insertion grooves, and the insertion grooves extend along the height direction of the first end plate or the second end plate.

[0006] Preferably, the insertion groove on the upper edge of the first end plate is arranged opposite to the insertion groove on the upper edge of the second end plate.

[0007] Preferably, the number of the insertion groove on the upper edge of the first end plate and the number of the insertion groove on the upper edge of the second end plate are both one or two.

[0008] Further, when the number of the insertion slot on the upper edge of the first end plate and the number of the insertion slot on the upper edge of the second end plate are single, the insertion slot is located in the middle position of the first end plate or the second end plate.

[0009] Preferably, the depth of the insertion groove is set between one half and two thirds of the height of the first end plate or the second end plate.

[0010] Specifically, the width of the insertion slot is set between 10-20 cm.

[0011] Preferably, the first end plate, the second end plate and the end plate connecting plate are an integrated structure.

[0012] Preferably, a rubber gasket is fixed on the end plate connecting plate.

[0013] On the other hand, the utility model also provides a battery module shell structure, comprising the end plate structure described in any of the above embodiments and a cover structure coupled to the end plate structure, the cover structure comprising a top plate and two side plates, wherein the top plate is connected to the upper edges of the first end plate and the second end plate, and the side plates are fixed on both sides of the top plate and are respectively fixedly connected to the first end plate, the second end plate and the end plate connecting plate.

[0014] Preferably, the top plate and the two side plates on both sides thereof are an integral structure.

[0015] The beneficial effects of the utility model are:

[0016] Since the upper edges of the first end plate and the second end plate provide insertion grooves, when assembling the battery core pack, a clamping device is used so that its two clamping arms clamp the battery core pack, and the clamping arms embed the battery core pack between the first end plate and the second end plate through the insertion groove, eliminating the need for manual assembly, which is beneficial to improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0018] In the attached picture:

[0019] Figure 1 A three-dimensional diagram of a common battery module end plate structure;

[0020] Figure 2 This is a three-dimensional diagram of the end plate structure of the battery module of the utility model;

[0021] Figure 3 and Figure 4 This is a schematic diagram of the working state of the battery module end plate structure of the utility model;

[0022] Figure 5It is a three-dimensional diagram of the battery module shell structure of the utility model.

[0023] The components represented by the reference numerals are:

[0024] 1 inserting slot, 2 second end plate, 3 first end plate, 4 end plate connecting plate, 5 side plate, 6 top plate, 7 clamping arm, 8 battery core group. DETAILED DESCRIPTION

[0025] See also Figures 2 to 5 The utility model provides a battery module end plate structure, including a first end plate 3, a second end plate 2 and an end plate connecting plate 4.

[0026] Among them, the first end plate 3 and the second end plate 2 are arranged opposite to each other, and the first end plate 3 and the second end plate 2 are respectively fixed on both sides of the end plate connecting plate 4, and the first end plate 3 and the second end plate 2 are spaced apart by a preset distance to form an accommodating space therebetween for installing the battery core group 8, and the first end plate 3 and the second end plate 2 are both arranged vertically with the end plate connecting plate 4, and the upper edges of the first end plate 3 and the second end plate 2 are flush, that is, the structures of the first end plate 3 and the second end plate 2 are roughly the same.

[0027] The upper edges of the first end plate 3 and the second end plate 2 are both provided with insertion grooves 1, and the insertion grooves 1 on the upper edge of the first end plate 3 are arranged opposite to the insertion grooves 1 on the upper edge of the second end plate 2, so that the clamping arm 7 for clamping the battery core group can embed the battery core group 8 between the first end plate 3 and the second end plate 2 through the insertion grooves 1, and the insertion grooves extend along the height direction of the first end plate 3 or the second end plate 2.

[0028] It can be understood that since the upper edges of the first end plate 3 and the second end plate 2 provide an insertion groove 1, when assembling the battery core group, a clamping device is used so that its two clamping arms clamp the battery core group, and the clamping arms embed the battery core group between the first end plate 3 and the second end plate 2 through the insertion groove 1, and manual assembly is no longer required, which is beneficial to improving production efficiency and reducing production costs.

[0029] Optionally, the number of the insertion slots 1 on the upper edge of the first end plate 3 and the number of the insertion slots 1 on the upper edge of the second end plate 2 are both single or double. Specifically, the number of the insertion slots 1 can be set according to the number of the clamping arms.

[0030] Furthermore, when the number of the insertion groove 1 on the upper edge of the first end plate 3 and the insertion groove 1 on the upper edge of the second end plate 2 is single, the insertion groove 1 is located in the middle position of the first end plate 3 or the second end plate 2 to make the structure more reasonable and reduce the impact on the structural strength of the first end plate 3 and the second end plate 2.

[0031] In addition, in order to ensure that the clamping arm 7 can completely insert the battery core group through the insertion groove 1 and reduce the impact of the insertion groove 1 on the structural strength of the first end plate 3 and the second end plate 2, the depth of the insertion groove 1 is set between one half and two thirds of the height of the first end plate 3 or the second end plate 2. For example, the depth of the insertion groove 1 is two thirds of the height of the first end plate 3 or the second end plate 2.

[0032] In one embodiment, the width of the insertion slot 1 is set between 10-20 cm, for example, the width of the insertion slot 1 is 15 cm, so as to accommodate clamping arms of different sizes.

[0033] Optionally, the first end plate 3, the second end plate 2 and the end plate connecting plate 4 are an integrated structure to reduce the difficulty of molding the end plate structure and to increase the connection strength.

[0034] In one embodiment, a rubber gasket is fixed on the end plate connecting plate 4, so as to increase the cushioning and friction, and improve the safety performance of the battery core pack.

[0035] On the other hand, the utility model also provides a battery module shell structure, including an end plate structure of any of the above-mentioned embodiments and a cover structure coupled to the end plate structure, the cover structure including a top plate 6 and two side plates 5, wherein the top plate 6 is connected to the upper edges of the first end plate 3 and the second end plate 2, the side plates 5 are fixed on both sides of the top plate 6 and are respectively fixedly connected to the first end plate 3, the second end plate 2 and the end plate connecting plate 4, specifically, the top plate 6 and the upper edges of the first end plate 3 and the second end plate 2 and the side plates 5 are fixed on both sides of the top plate 6 and are respectively fixedly connected to the first end plate 3, the second end plate 2 and the end plate connecting plate 4 by welding.

[0036] Optionally, the top plate 6 and the two side plates 5 on both sides thereof are an integral structure, so as to reduce the difficulty of molding the cover plate structure and help increase the connection strength.

[0037] The above are only preferred implementations of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery module end plate structure, characterized in that: The invention comprises a first end plate (3), a second end plate (2) and an end plate connecting plate (4), wherein the first end plate (3) and the second end plate (2) are arranged opposite to each other, and the first end plate (3) and the second end plate (2) are respectively fixed on both sides of the end plate connecting plate (4), the first end plate (3) and the second end plate (2) are both arranged vertically with the end plate connecting plate (4), and the upper edges of the first end plate (3) and the second end plate (2) are flush; The upper edges of the first end plate (3) and the second end plate (2) are both provided with insertion grooves (1), so that a clamping arm for clamping the battery core group can embed the battery core group between the first end plate (3) and the second end plate (2) through the insertion grooves (1), and the insertion grooves (1) extend along the height direction of the first end plate (3) or the second end plate (2).

2. The battery module end plate structure according to claim 1, characterized in that: The number of the insertion groove (1) on the upper edge of the first end plate (3) and the number of the insertion groove (1) on the upper edge of the second end plate (2) are both one or two.

3. The battery module end plate structure according to claim 2, characterized in that: When the number of the insertion groove (1) on the upper edge of the first end plate (3) and the number of the insertion groove (1) on the upper edge of the second end plate (2) are only one, the insertion groove (1) is located in the middle position of the first end plate (3) or the second end plate (2).

4. The battery module end plate structure according to claim 3, characterized in that: The depth of the insertion groove (1) is set between one half and two thirds of the height of the first end plate (3) or the second end plate (2).

5. The battery module end plate structure according to claim 1, characterized in that: The width of the insertion slot (1) is set between 10-20 cm.

6. The battery module end plate structure according to claim 1, characterized in that: The first end plate (3), the second end plate (2) and the end plate connecting plate (4) are an integrated structure.

7. The battery module end plate structure according to claim 1, characterized in that: A rubber gasket is fixed on the end plate connecting plate (4).

8. A battery module housing structure, characterized in that: It comprises an end plate structure as described in any one of claims 1 to 7 and a cover structure coupled to the end plate structure, the cover structure comprises a top plate (6) and two side plates (5), wherein the top plate (6) is connected to the upper edges of the first end plate (3) and the second end plate (2), and the side plates (5) are fixed on both sides of the top plate (6) and are respectively fixedly connected to the first end plate (3), the second end plate (2) and the end plate connecting plate (4).

9. The battery module housing structure according to claim 8, characterized in that: The top plate (6) and the two side plates (5) on both sides thereof are an integral structure.

Images