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Battery box body

A box and battery technology, which is applied to battery pack parts, battery boxes/coats, circuits, etc., can solve problems such as insufficient sealing, deformation of gaskets, and easy air leakage, etc., to achieve convenient control, prevent failure, and reliable sealing Effect

Pending Publication Date: 2017-10-31
CONTEMPORARY AMPEREX TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, during the fastening process, the pressure of the bolts on the gasket is not easy to control. When the sealing pressure is too small, the sealing performance is not enough and it is easy to leak air. When the sealing pressure is too large, the gasket is easily deformed excessively, resulting in permanent deformation of the gasket and fail

Method used

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  • Battery box body
  • Battery box body
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Experimental program
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Embodiment Construction

[0024] The battery case of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] refer to Figure 1 to Figure 8 , the battery box according to the present invention comprises: a lower box body 1 with a lower sealing surface 11 at the top; an upper cover plate 2 with an upper sealing surface 21 and a through mounting hole 22 at the bottom; and a gasket 3 sandwiched on the lower sealing surface 11 and the upper sealing surface 21, the initial thickness of the gasket 3 before compression is T, and the gasket 3 has a through hole 31 corresponding to the installation hole 22; the nut column 4 is fixed on the lower box 1 and extends into the The through hole 31 of the gasket 3, the height of the upper surface of the nut column 4 beyond the lower sealing surface 11 is H, and H

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PUM

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Abstract

The invention provides a battery box body, which comprises a lower box body, an upper cover plate, a sealing gasket, a nut column and a connector, wherein the lower box body has a lower sealing surface at the top; the upper cover plate has an upper sealing surface and a penetrating installation hole at the bottom; the sealing gasket is clamped between the lower sealing surface and the upper sealing surface, the initial thickness of the sealing gasket before being compressed is T and a through hole corresponding to the installation hole is formed in the sealing gasket; the nut column is fixed on the lower box body and extends into the through hole in the sealing gasket, the height of the upper surface, exceeding the lower sealing surface, of the nut column is H and H is smaller than T; and the connector passes through the installation hole in the upper cover plate and the through hole in the sealing gasket to fix the upper cover plate on the nut column and the upper surface of the nut column is in contact with the upper sealing surface of the upper cover plate. The battery box body is capable of controlling the contact pressure between the upper cover plate and the sealing gasket, preventing the sealing gasket from being destroyed by overlarge contact pressure between the upper cover plate and the sealing gasket and avoiding a failure of the sealing gasket while ensuring reliable sealing of the upper cover plate and the lower box body.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a battery box. Background technique [0002] With the increasing application of power batteries, power battery products need to meet the dustproof and waterproof requirements of IP67 in terms of safety, performance and use requirements. The existing sealing is to place a gasket between the upper cover plate and the lower box body, and fasten and apply pressure to the upper cover plate and the lower box body through fastening structures such as screws and nuts, so as to achieve a sealing effect. [0003] However, during the fastening process, the pressure of the bolts on the gasket is not easy to control. When the sealing pressure is too small, the sealing performance is not enough and it is easy to leak air. When the sealing pressure is too large, the gasket is easily deformed excessively, resulting in permanent deformation of the gasket and fail. Contents of the invention [0004] I...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M2/08H01M50/24H01M50/244H01M50/271
CPCH01M50/183H01M50/20Y02E60/10
Inventor 王增忠陈兴地
Owner CONTEMPORARY AMPEREX TECH CO