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Deformation restraint battery pack module structure

A modular structure and battery pack technology, applied to battery pack components, structural parts, circuits, etc., can solve problems such as reduced battery life, potential safety hazards, short circuit of battery cells, etc., and achieve the effect of compact structure

Active Publication Date: 2013-01-23
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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AI Technical Summary

Problems solved by technology

[0003] Especially when using square battery cells to design battery modules, two methods are generally adopted: one method is designed from the perspective of battery safety and thermal management performance, and sufficient gaps are reserved between the cells, which is conducive to thermal management and relatively safe Avoid short circuit between the cells, but the battery cells have a certain expansion rate after a certain number of charge and discharge cycles. The expansion of the battery cells will lead to changes in the internal structure of the battery cells, increase the internal resistance of the battery, and reduce the battery life; the other This method is designed from the perspective of prolonging battery life. The battery cells are closely arranged to inhibit the expansion of the battery cells during the charge-discharge cycle. However, the closely arranged battery cells are prone to heat accumulation, which may seriously cause occurrence of heat between the battery cells. Short circuit, there is a great safety hazard

Method used

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  • Deformation restraint battery pack module structure
  • Deformation restraint battery pack module structure
  • Deformation restraint battery pack module structure

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, the present invention will be further described:

[0024] There are two types of battery pack module structures designed, vertical and horizontal; the battery pack module structure has no absolute limit on the number of battery cells, because the design ideas and principles are the same, and the battery pack module structures are similar.

[0025] There are two types of examples listed in the present invention, namely, a vertical 6-battery unit module and a horizontal 6-battery unit module. Here, only the vertical 6-battery unit module is introduced, and the horizontal 6-battery unit module has attached drawings.

[0026] The battery cell is in the shape of a cuboid, and the surface with the largest area is the front, and the opposite is the back; when facing the front, the left side is the left side, and the right side is the right side; the side closest to the ground It is the bottom surface, and the side opposite to th...

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Abstract

The invention relates to a deformation restraint battery pack module structure which comprises a battery pack shell and a certain amount of battery monomers, wherein a baffle is arranged between two adjacent battery monomers; the battery pack shell comprises an upper cover plate, a base plate, side plates, side reinforcing plates and a screw rod; and the upper cover plate is connected with the base plate through the side plates, the side reinforcing plates are covered outside the left side plate and the right side plate, and the two side reinforcing plates are connected through the screw rod.

Description

technical field [0001] The invention belongs to the field of electric vehicle battery grouping, and in particular relates to a battery grouping module structure. Background technique [0002] As the power source of electric vehicles, batteries are undoubtedly the core components of electric vehicles. In order to meet a certain mileage, it is necessary to install a certain number of batteries in groups. Battery pack technology is a key technology for power batteries, which directly determines the performance of the entire battery pack. The module design of the battery pack should not only meet the requirements of light weight and reliable mechanical strength, but also ensure the battery pack has a long service life, good safety performance and easy thermal management during use. [0003] Especially when using square battery cells to design battery modules, two methods are generally adopted: one method is designed from the perspective of battery safety and thermal management...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M2/18
CPCY02E60/12Y02E60/10
Inventor 夏顺礼赵久志张宝鑫刘舒龙阳斌宋军刘涛
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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