Power battery pack

A technology for power battery packs and battery modules, applied in the direction of batteries, battery pack components, circuits, etc., can solve the problems that the battery pack cannot fully fix the battery cells, cushion the impact, and the battery pack has weak anti-collision ability, so as to improve the anti-collision Side impact ability, good anti-collision performance, and the effect of improving structural strength

Active Publication Date: 2020-03-24
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to propose a power battery pack, which aims to solve the technical problem that the current battery pack cannot realize the complete fixation of the battery cells and cushion the impact, which leads to the weak anti-collision ability of the battery pack

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Embodiment Construction

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0039] It should be noted that if there are directional indications (such as up, down, left, right, front, back, outside, inside...) involved in the embodiment of the present invention, the directional indication is only used to explain that it is in a specific posture ( As shown in the drawings), if the relative positional relationship and movement of the components under the following conditions change, the directional indication will a...

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Abstract

The invention discloses a power battery pack. The power battery pack comprises a lower shell, a battery module and an upper shell assembly. Two cross beams and a plurality of longitudinal beams are fixedly installed in the lower shell, and the longitudinal beams are arranged between the two cross beams at intervals in the length direction of the cross beams so as to form a plurality of strip-shaped hole sites. The battery module comprises a plurality of battery cells and a plurality of partition plates. The battery cells are placed in the strip-shaped hole sites at intervals in the length direction of the longitudinal beams, and the partition plates are installed between every two adjacent battery cells. And the upper shell assembly covers the battery module and is fixedly connected with the lower shell. According to the power battery pack provided by the invention, the battery cells can be completely fixed, and when the power battery pack is subjected to lateral collision, the lower shell forms a first defense line, and the longitudinal beams form a second defense line, so that the lateral collision prevention capability of the power battery pack can be greatly improved. In addition, the plurality of columns of longitudinal beams can also prevent short circuit in the battery cell caused by overlarge one-time deformation of the power battery pack, so that the service life of the power battery pack is comprehensively prolonged.

Description

Technical field [0001] The invention relates to the technical field of power batteries, in particular to a power battery pack. Background technique [0002] The battery pack of the traditional new energy power battery has a structure as follows: a power battery is composed of multiple cells in series and parallel, and the cells and cells are connected by welding electrical connection parts, and the electrical connectors are connected to multiple cells. The same poles of the same pole are welded to form a series in parallel. The parallel sections are then connected to multiple cells in parallel with different poles to form a series. Multiple series sections form a modular module, which is mass-produced outside the battery pack. Assemble, and then install the modules one by one into the battery pack. This is currently the most widely used battery pack grouping method. [0003] In order to reduce the process steps of battery pack assembly and reduce processing costs, a non-modularize...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M50/249
CPCH01M2220/20H01M50/20Y02E60/10
Inventor 刘涛秦李伟刘舒龙沈昕
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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