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Battery box

一种电池箱、电池的技术，应用在电池、电池组零部件、电路等方向，能够解决电池绝缘强度不足、安全等问题

Active Publication Date: 2020-07-07
CONTEMPORARY AMPEREX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this setting method ensures the bonding strength of the battery box, safety problems often occur due to insufficient insulation strength of the battery during the long-term use of the battery box.

Method used

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Embodiment Construction

[0028] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0029] In the description of this application, unless otherwise clearly specified and limited, the term "plurality" means two or more; specific meaning in .

[0030] In the description of this specification, it should be understood that the orientation words such as "up" and "down" described in the embodiments of the present application are described from the perspective shown in the drawings, and should not be interpreted as a description of the embodiments of the present application. limited. The application will be described in further detail below in conjunction with...

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Abstract

The invention provides a battery box. The battery box comprises a box body, a plurality of batteries, an insulating film and a structural adhesive, wherein the insulating film covers the exterior of the shell of the battery and is provided with an opening so that the corresponding part of the shell can be exposed out of the insulating film. The structural adhesive is arranged between the battery and the box body. The area of the opening is A1, and the total area of the surface of the shell corresponding to the opening is A; the thickness of the structural adhesive is L1, and the volume resistivity of the structural adhesive is rho1. The thickness of the insulating film is L2, and the volume resistivity of the insulating film is rho2. The A1, A, L1, rho1, L2 and rho2 satisfy the following equation. Since the insulating film is provided with the opening, a part of the structural adhesive bonds the shell of the battery to the box body at the opening, and the other part of the structural adhesive bonds the insulating film to the box body on the outer side of the opening, the bonding strength between the battery and the box body is ensured. Meanwhile, the opening area A1 of the insulating film and the opening areas A, L1, rho1, L2 and rho2 of the insulating film meet the relationship, so that the coating area of the insulating film on the battery meets the insulating strength requirement, and the safety performance of the battery box is effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery box. Background technique [0002] At present, the bottom of the battery is directly fixed to the lower box body by gluing in many battery boxes. Since the lower box body and the shell of the battery are generally made of metal (such as aluminum), in order to insulate the shell of the battery, an insulating film is generally wrapped around the shell. [0003] Since the insulating film is usually made of polymer materials such as PET and PC, and the surface energy of these polymer materials is relatively low, when the structural adhesive is used to directly bond the insulating film outside the lower box and the battery case, the bonding effect is not good. good. Since the bonding effect of the structural adhesive to the aluminum plate is better than that of the insulating film, in order to improve the bonding effect, the insulating film is usually completely removed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M2/10H01M50/119H01M50/121H01M50/124H01M50/131H01M50/133H01M50/209
CPCH01M50/131H01M50/119H01M50/209H01M50/121H01M50/133H01M50/124H01M2220/20B60L50/64Y02T10/70Y02E60/10B60R16/04
Inventor 陈天明陈智明
Owner CONTEMPORARY AMPEREX TECH CO LTD