A new energy battery module

Abstract

The utility model belongs to battery technical field discloses a new energy battery module, including electric core and steel sheet, the quantity of electric core is multiple, multiple electric core stacks together and forms electric core group, and the opposite two sides of electric core group are equipped with end plate, and two end plates are fixed through packing plastic steel band, and the both sides of steel sheet are connected with two end plates respectively, and the end plate is installed in the inside of machine case through machine case lock screw, and the electric core is equipped with explosion -proof valve, and the end plate is equipped with the press plate, the position of press plate is opposite the explosion -proof valve and sets up, and the side of press plate is equipped with the trepanning.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a new energy battery module. Background Technology

[0002] Conventional battery module mounting uses a structure where profile end plates are fixed to steel strips. This method requires a pre-compression machine to apply pre-pressure to the module, and the steel strip, being a new material, places high demands on the supplier's processing capabilities. Furthermore, conventional battery modules are typically placed upright inside the casing, limiting the product's height. This module mounting method places high demands on equipment, requiring a pre-compression machine, and the complex processing of the steel strip places high demands on the supplier, resulting in higher costs. The module's upward-facing orientation also limits its height; for wall-mounted projects, this height dimension, which is the wall-mounting dimension, needs to be minimized.

[0003] Therefore, it is necessary to provide a new energy battery module that simplifies the module fixing method, reduces equipment investment, and simplifies the supplier's processing technology. Utility Model Content

[0004] This utility model discloses a new energy battery module, which can effectively solve the technical problems involved in the background art.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A new energy battery module includes battery cells and steel plates. The number of battery cells is multiple, and the multiple battery cells are stacked together to form a battery cell group. End plates are provided on opposite sides of the battery cell group. Two end plates are fixed by packing plastic steel straps. Two end plates are respectively connected to both sides of the steel plate. The end plates are installed inside the chassis by chassis screws.

[0007] As a preferred improvement of this utility model, the number of battery cells is 4-8.

[0008] As a preferred improvement of this utility model, the steel plate and the end plate are fixed by bolts.

[0009] As a preferred improvement of this utility model: two sets of new energy battery modules are installed in the chassis, and the terminals of the two battery modules are arranged face to face.

[0010] As a preferred improvement of this utility model: the battery cell is provided with an explosion-proof valve, the end plate is provided with a pressure plate, the pressure plate is positioned directly opposite the explosion-proof valve, and the side of the pressure plate is provided with an opening.

[0011] As a preferred improvement of this utility model: two sets of battery modules are provided inside the chassis, and the explosion-proof valves of the two sets of battery modules are arranged facing each other.

[0012] As a preferred improvement of this utility model, a busbar is provided on the end plate.

[0013] As a preferred improvement of this utility model: the chassis is provided with a cover plate, and connecting blocks are installed on both sides of the cover plate. A connecting seat is installed on one side of each connecting block. A groove is provided inside each connecting seat, and a spring is installed on one side of each groove. A mounting block is installed on one side of each spring. A mounting slot is provided on the end plate. The cross-section of the mounting slot is larger than the cross-section of the mounting block. The mounting slot and the mounting block form a locking structure.

[0014] The beneficial effects of this utility model are as follows:

[0015] The module fixing method is simplified, reducing equipment investment and simplifying the supplier's processing technology. The smaller cell size is used for placement, reducing the product height and increasing the product's aesthetics. In addition, a pressure relief channel is added to prevent the thermal runaway of a single cell from affecting the cells on the opposite side. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0017] Figure 1 This is a schematic diagram of a new energy battery module according to the present invention;

[0018] Figure 2 This is a schematic diagram of the installation of the battery module of this utility model. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the installation of the battery module of this utility model. Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the installation of the pressure plate of this utility model. Figure 1 ;

[0021] Figure 5 This is a schematic diagram of the installation of the pressure plate of this utility model. Figure 2 ;

[0022] Figure 6 This is a schematic diagram illustrating the use of the pressure plate of this utility model;

[0023] Figure 7 This is a schematic diagram of the cover plate structure of this utility model;

[0024] Figure 8This is a schematic diagram of the mounting block structure of this utility model;

[0025] Figure 9 This is a schematic diagram of the spring structure of this utility model.

[0026] In the diagram: 100-Chassis, 1-Battery cell, 2-End plate, 3-Packaging plastic steel strap, 4-Pole post, 5-Explosion-proof valve, 6-Steel plate, 7-Chassis locking screws, 8-Busbar, 9-Pressure plate, 10-Cover plate, 11-Mounting clip, 12-Connecting block, 13-Connecting seat, 14-Mounting slot, 15-Slot, 16-Spring. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0029] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean 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 invention according to the specific circumstances.

[0031] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0032] Please see Figures 1-6 As shown, this utility model provides a new energy battery module, including a battery cell 1 and a steel plate 6. Multiple battery cells 1 are stacked together to form a battery cell group. Each battery cell group has end plates 2 on opposite sides. Two end plates 2 are fixed together by packing plastic straps 3. Two end plates 2 are connected to each side of the steel plate 6. The end plates 2 are installed inside a housing 100 using housing screws 7. The number of battery cells 1 is 4-8, and the steel plate 6 is fixed to the end plates 2 with bolts. Two sets of new energy battery modules are installed inside the housing 100, with the terminals 4 of the two battery modules facing each other. Each battery cell 1 is equipped with an explosion-proof valve 5. A pressure plate 9 is provided on the end plate 2, positioned opposite the explosion-proof valve 5, and has an opening on its side. Two sets of battery modules are installed inside the housing 100, with the explosion-proof valves 5 of the two sets facing each other. A busbar 8 is provided on the end plate 2.

[0033] After the battery cells are stacked, they are bundled together with the end plates on both sides using plastic strapping. The plastic strapping equipment is simple and has low material costs, requires no pre-compression, and can provide initial pre-compression for the battery cells. When the module is fixed in the chassis, the bottom of the end plate is secured to the chassis with screws, and a steel plate is added to the top of the module. Since the plastic strapping has low strength and can break due to expansion force at the end of the battery cell's lifespan, this method provides reinforcement. Even if the plastic strapping breaks, the steel plate ensures that the module does not deform.

[0034] Because the cell's front-facing dimension is 20% larger than its side-facing dimension, the modules are arranged side-facing for aesthetic reasons and overall harmony. To ensure the shortest busbar path, the two module terminals are placed face-to-face. A pressure relief path is added to the top of the explosion-proof valve, using openings in the pressure strip to guide the high-temperature gas vertically, preventing it from directly breaching the explosion-proof valve of the opposite cell and causing thermal runaway. This reduces investment in production equipment, facilitates production line processing, enhances product aesthetics and overall harmony, and allows for module placement in different orientations, increasing assembly and dimensional flexibility. It should be further noted that any other components used to achieve the above effects should fall within the inventive concept of this utility model and its protection scope.

[0035] Please see Figures 7-9As shown, the chassis 100 has a cover plate 10 inside. Connecting blocks 12 are installed on both sides of the cover plate 10, and a connecting seat 13 is installed on one side of each connecting block 12. Each connecting seat 13 has a groove 15 inside, and a spring 16 is installed on one side of each groove 15. A mounting block 11 is installed on one side of each spring 16. The end plate 2 has a mounting slot 14, the cross-section of which is larger than the cross-section of the mounting block 11. The mounting slot 14 and the mounting block 11 form a locking structure. By providing components such as mounting blocks, connecting blocks, mounting slots, and springs, the outer wall of the battery module body is mounted on the cover plate during use. The chassis and the cover plate form a whole to protect the battery module body and better secure the battery module. It should be further noted that any other components used to achieve the above effects should fall within the inventive concept of this utility model and should be protected within the scope of this utility model.

[0036] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A new energy battery module, characterized in that: Includes a battery cell (1) and a steel plate (6). There are multiple battery cells (1). Multiple battery cells (1) are stacked together to form a battery cell group. The battery cell group has end plates (2) on both sides. The two end plates (2) are fixed by a packing plastic steel strap (3). The two end plates (2) are connected to both sides of the steel plate (6). The end plates (2) are installed inside the chassis (100) by chassis locking screws (7).

2. A new energy battery module according to claim 1, characterized in that: The number of the battery cells (1) is 4-8.

3. A new energy battery module according to claim 1, characterized in that: The steel plate (6) is fixed to the end plate (2) by bolts.

4. A new energy battery module according to claim 1, characterized in that: Two sets of new energy battery modules are installed in the chassis (100), with the terminals (4) of the two battery modules facing each other.

5. A new energy battery module according to claim 1, characterized in that: The battery cell (1) is equipped with an explosion-proof valve (5), and the end plate (2) is equipped with a pressure plate (9). The pressure plate (9) is positioned directly opposite the explosion-proof valve (5), and the side of the pressure plate (9) is provided with an opening.

6. A new energy battery module according to claim 5, characterized in that: Two sets of battery modules are installed inside the chassis (100), and the explosion-proof valves (5) of the two sets of battery modules are positioned opposite each other.

7. A new energy battery module according to claim 1, characterized in that: The end plate (2) is provided with a busbar (8).

8. A new energy battery module according to claim 1, characterized in that: The chassis (100) is provided with a cover plate (10). Connecting blocks (12) are installed on both sides of the cover plate (10), and connecting seats (13) are installed on one side of each connecting block (12). Each connecting seat (13) has a groove (15) inside, and a spring (16) is installed on one side of each groove (15). Each spring (16) has a mounting block (11) installed on one side. The end plate (2) is provided with a mounting slot (14). The cross-section of the mounting slot (14) is larger than the cross-section of the mounting block (11). The mounting slot (14) and the mounting block (11) form a locking structure.

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