Lithium battery pack fixing device

Abstract

The invention relates to a lithium battery pack fixing device which comprises a support with a centre hole and a discoid insulating shell, wherein the discoid insulating shell is arranged outside the support, is also provided with a centre hole and consists of a left shell and a right shell; axial grooves are arranged at the external rim of the support and embedded with axial raised lines arranged on the side wall of the insulating shell; and the left shell and the right shell are fixedly connected with each other by means that bolts penetrate through the raised lines and spud piles arranged around the centre hole, the spud piles are also used for fixing a battery protection board, and an elastic washer is arranged on the battery protection board so as to ensure the axial stability of the protection board. The lithium battery pack fixing device is simple in structure and beneficial to the heat dissipation of a battery pack and can be used for effectively enhancing the stability and safety of the battery pack and the protection board and prolonging the service life of the battery pack.

Description

technical field [0001] The invention relates to a lithium battery pack fixing device. Background technique [0002] Due to the advantages of light weight, small size, large capacity, and fast charging speed, lithium batteries have been widely used in various digital products such as mobile phones and computers. The use of lithium-ion batteries instead of heavy and time-consuming lead-acid batteries for electric bicycles and other large-capacity, high-voltage vehicles has attracted widespread attention in the industry. In this application, multiple battery cells need to be combined, and the problem of fixing multiple battery cells must be solved first. The existing battery pack fixing device is fixed by a single bracket, which has problems such as poor anti-vibration capability and poor stability of the battery pack, resulting in reduced service life of the battery. [0003] Chinese patent CN101752538A discloses a lithium battery pack bracket with a flat structure for the a...

AI Technical Summary

Problems solved by technology

However, it does not take into account that the battery components will heat up and expand after charging and discharging, the heat dissipation between the battery cells is poor, and the protection board bracket is added, which makes the structure more complicated

[0004] Chinese patent CN201194240Y discloses a battery assembly frame, the structure of which includes a hollow shell with a storage space for the battery to be inserted into. The opposite side edges of the hollow shell are provided with a set of connecting ribs and A fitting groove, the four corners of the lower end of the hollow shell are provided with fixing components. The battery assembly rack has a simple structure, is easy to assemble, and can block the heat between the unit cells, but it does not involve the need for battery pack applications. The problem of installing a protective board, and the damage of the protective board will cause the entire battery pack to be unusable

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