Standardized module of power battery

Abstract

The utility model belongs to battery module technical field discloses a power battery standardization module, including the contact splicing of a plurality of electricities that are discharged into a row, the insulating sheet is installed between two adjacent electricities, and the connecting sheet is installed at the electric connection end of two adjacent electricities, the connecting sheet is equipped with welding positioning hole and sampling line mounting point, the module negative pole and module positive pole are installed on the electricities at both end positions, and the end plate is installed on the side of the electricities at both end positions; The end plate is equipped with U type side, the both sides of U type side are equipped with module hoist hole and bandage limiting groove, and the bandage is installed in the bandage limiting groove of both end end plate, the bottom of U type side is equipped with bolt fastening mouth, adopt the structure design of the utility model, and the end plate is added at both ends of the electricities, the position of the bandage is not only positioned under the effect of the end plate, but also makes the bandage tight and does not cause the influence to the appearance of the electricities.

Description

Technical Field

[0001] This utility model belongs to the field of battery module technology, specifically relating to a standardized power battery module. Background Technology

[0002] With the rapid development of new energy vehicles and energy storage industries, the demand for standardization, modularization and scalability of power battery systems is becoming increasingly prominent. Power battery modules are composed of several cells arranged in an array. Currently, common methods for fixing these cells after arrangement include direct binding, custom-made boxes and welded enclosures. Custom-made boxes and welded enclosures will increase the area of ​​the module to a certain extent, and will also waste time and increase costs. One problem with direct binding is that because it needs to be tightly bound, it will cut into the cells after a long time, damaging the shape of the cells. Therefore, further optimization is needed. Utility Model Content

[0003] In view of the problems raised in the background technology above, the purpose of this utility model is to provide a standardized power battery module.

[0004] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:

[0005] A standardized power battery module includes several battery cells arranged in a row by contact splicing, an insulating sheet is installed between two adjacent battery cells, a connecting piece is installed at the electrical connection end of two adjacent battery cells, the connecting piece is provided with welding positioning holes and sampling line mounting points, a module negative electrode and a module positive electrode are installed on the battery cells located at both ends, and an end plate is installed on the side of the battery cells located at the two extreme positions.

[0006] The end plate has a U-shaped side, and the two sides of the U-shaped side are provided with module lifting holes and strap limiting grooves. Straps are installed on the end plates at both ends through the strap limiting grooves. The bottom of the U-shaped side is provided with a bolt fastening port.

[0007] Further specifying, the connecting piece is an aluminum sheet with a Z-shaped cross-section, and the sampling line mounting point is located on the protrusion. This design gives the aluminum sheet the advantages of being lightweight and having optimized energy consumption, excellent thermal conductivity, outstanding economy, and strong process adaptability. The Z-shaped shape is also conducive to the docking and installation of the sampling line mounting point.

[0008] Furthermore, the planar area of ​​the end plate is larger than that of the battery cell. This design ensures that the entire plane of the battery cell is supported without any indentations.

[0009] Furthermore, the top of the end plate is integrally connected to two L-shaped mounting plates, each with mounting holes. An insulating cover plate is mounted on the L-shaped mounting plate through the mounting holes. With this design, the insulating cover plate on the upper side of the cell module is one of the components in the battery system that realizes safety protection and functional integration. It can effectively achieve the purpose of electrical isolation, short-circuit protection, and structural protection against mechanical impact.

[0010] Furthermore, the strap limiting groove has two slots and the bolt fastening port has three. With this design, the number of strap limiting grooves determines the number of straps that can be used and the strength of its binding, while the number of bolt fastening ports determines the installation and fastening strength of the end plate.

[0011] The beneficial effects of using this utility model are as follows:

[0012] The structural design of this utility model adds end plates to both ends of the battery cell. The end plates not only limit the position of the straps, but also ensure that the tightness of the straps does not affect the shape of the battery cell. Moreover, the addition of this structure will not excessively increase the overall cost of the battery module, which is beneficial to production and economical.

[0013] The structural design of this utility model allows for convenient installation of the battery modules in the middle under the effect of the end plate, and ensures that the bottom of the battery cell does not contact the mounting surface, thus preventing any impact on the normal service life of the battery cell. Attached Figure Description

[0014] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of a standardized power battery module according to the present invention;

[0016] Figure 2 This is a partial exploded structural diagram of an embodiment of a standardized power battery module according to the present invention;

[0017] The symbols for the main components are explained below:

[0018] 1. Battery cell; 2. Insulating sheet; 3. Connecting piece; 4. Welding positioning hole; 5. Sampling line mounting point; 6. Module negative electrode; 7. Module positive electrode; 8. End plate; 9. U-shaped side; 10. Module lifting hole; 11. Strap limiting groove; 12. Strap; 13. Bolt fastening port; 14. L-shaped mounting plate; 15. Mounting hole; 16. Insulating cover plate. Detailed Implementation

[0019] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1 , Figure 2 As shown, a standardized power battery module of this utility model includes several battery cells 1 arranged in a row by contact splicing, an insulating sheet 2 is installed between two adjacent battery cells 1, a connecting piece 3 is installed at the electrical connection end of two adjacent battery cells 1, the connecting piece 3 is provided with welding positioning holes 4 and sampling line mounting points 5, a module negative electrode 6 and a module positive electrode 7 are installed on the battery cells 1 located at both ends, and an end plate 8 is installed on the side of the battery cells 1 located at the two extreme positions;

[0021] The end plate 8 is provided with a U-shaped side 9. The U-shaped side 9 is provided with module hoisting holes 10 and strap limiting grooves 11 on both sides. Straps 12 are installed on both end plates 8 through the strap limiting grooves 11. The bottom of the U-shaped side 9 is provided with bolt fastening holes 13.

[0022] The preferred connecting piece 3 is an aluminum sheet with a Z-shaped cross-section. The sampling line mounting point 5 is located on the protrusion. This design gives the aluminum sheet the advantages of lightweight and energy consumption optimization, excellent thermal conductivity, outstanding economy and strong process adaptability. The Z-shaped shape facilitates the docking and installation of the sampling line mounting point 5. In fact, the material and shape of the connecting piece 3 can also be considered according to the specific situation.

[0023] Preferably, the planar area of ​​the end plate 8 is larger than that of the battery cell 1. This design ensures that the entire plane of the battery cell 1 is supported without any indentations. In practice, the planar area of ​​the end plate 8 can also be considered according to specific circumstances.

[0024] The preferred end plate 8 has two L-shaped mounting plates 14 integrally connected to its top. The L-shaped mounting plates 14 are provided with mounting holes 15. An insulating cover plate 16 is installed on the L-shaped mounting plates 14 through the mounting holes 15. With this design, the insulating cover plate 16 on the upper side of the cell module is one of the components that realizes safety protection and functional integration in the battery system. It can effectively achieve the purpose of electrical isolation, short circuit protection, and mechanical shock resistance. In fact, the top matching structure of the end plate 8 that facilitates the installation of the insulating cover plate 16 can also be considered according to the specific situation.

[0025] The preferred design has two strap limiting grooves 11 and three bolt fastening ports 13. With this design, the number of strap limiting grooves 11 determines the number of straps 12 that can be used and the strength of their binding. The number of bolt fastening ports 13 determines the installation and fastening strength of the end plate 8. In fact, the number of strap limiting grooves 11 and bolt fastening ports 13 can also be considered according to the specific situation.

[0026] In this implementation case, when using a standardized power battery module, the required number of battery cells are placed between the end plates 8 with the insulating sheet 2 between the two battery cells 1. Then, the binding strap 12 is used to bind all the battery cells between the two end plates 8 through the binding strap limiting groove 11. The battery cells are thus assembled to form a power battery module. This method is simple, convenient and fast, suitable for mass production and ensures production efficiency.

[0027] With the effect of the end plate, all the battery cells 1 can be suspended during installation, thereby preventing the installation surface from affecting the battery cells 1. Moreover, the setting of the strap limiting groove 11 on the end plate makes it difficult for the strap 12 to slide after the fixed installation is completed, thus ensuring the binding and limiting effect of the battery cells 1.

[0028] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A standardized power battery module, comprising a plurality of battery cells (1) arranged in a row by contact splicing, characterized in that: An insulating sheet (2) is installed between two adjacent battery cells (1), and a connecting piece (3) is installed at the electrical connection ends of two adjacent battery cells (1). The connecting piece (3) is provided with a welding positioning hole (4) and a sampling wire installation point (5). A module negative electrode (6) and a module positive electrode (7) are installed on the battery cells (1) located at both ends, and end plates (8) are installed beside the battery cells (1) located at both extreme positions. The end plate (8) is provided with a U-shaped side (9). Module lifting holes (10) and strap limiting grooves (11) are provided on both sides of the U-shaped side (9). Straps (12) are installed on both end plates (8) through the strap limiting grooves (11). A bolt fastening port (13) is provided at the bottom of the U-shaped side (9).

2. The standardized power battery module according to claim 1, characterized in that: The connecting piece (3) is an aluminum sheet with a cross-section in a shape like the Chinese character 'ji'. The sampling wire installation point (5) is located at the convex part.

3. A standardized power battery module according to claim 2, characterized in that: The planar area size of the end plate (8) is larger than the planar area size of the battery cell (1).

4. A standardized power battery module according to claim 3, characterized in that: Two L-shaped mounting plates (14) are integrally connected to the top of the end plate (8). The L-shaped mounting plates (14) are provided with mounting holes (15), and an insulating cover plate (16) is installed on the L-shaped mounting plates (14) through the mounting holes (15).

5. A standardized power battery module according to claim 4, characterized in that: There are two strap limiting grooves (11) and three bolt fastening ports (13).

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