Battery overcharge protection structure and battery cover

A technology of overcharge protection and battery cover, applied to structural parts, battery pack components, circuits, etc., to achieve the effects of reducing size, simplifying the structure of the cover plate, and reducing the welding process

Pending Publication Date: 2018-01-12
深圳市欣迪盟科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the technical defects of large size and complicated structure caused

Method used

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  • Battery overcharge protection structure and battery cover
  • Battery overcharge protection structure and battery cover
  • Battery overcharge protection structure and battery cover

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Embodiment Construction

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037]In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear" etc. is based on the orientation or positional relationship shown in the drawings, and is only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and...

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Abstract

The invention provides a battery overcharge protection structure and a battery cover. The battery overcharge protection structure is arranged on a cover plate of the battery and is provided with an overturning body capable of overturning on the cover plate; the overturning body is fixedly arranged on the cover plate; at least one bursting groove is formed in the overturning body; the value of thebursting pressure, positioned at the position of the blasting groove, of overturning body is higher than the overturning pressure value of the overturning body; when the internal pressure of the battery reaches the overturning pressure value, the overturning body can overturn to enable the external circuit of the battery to be shortcircuited to release battery core energy, so that the battery stops work; after the internal pressure of the battery is continuously increased and reaches the bursting pressure value, the bursting groove in the overturning body bursts to leak pressure; and by the mode of arranging the bursting groove in the overturning body and on the basis of integrating the overturning function and the bursting function, the size is reduced, the cover plate structure is simplified, the welding process of the explosion-proof sheet is reduced and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of power batteries, in particular to a battery overcharge protection structure and a battery cover with the battery overcharge protection structure. Background technique [0002] Due to its high energy, high capacity and high power, power batteries have been widely used in electric vehicles and energy storage power stations. For power batteries, due to their high energy and high activity, they tend to catch fire and explode when overcharged. For this reason, power batteries should also have good safety performance and long cycle life, etc., in order to meet the use standards and satisfy people's demands. [0003] At present, a power battery usually includes a casing, a cover plate, and a battery cell, etc., wherein the battery cell is placed inside the casing, the upper end of the casing has an opening, and the cover plate seals the opening at the upper end of the casing. The electrode terminals on the boa...

Claims

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Application Information

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IPC IPC(8): H01M2/04H01M2/12H01M50/147H01M50/30
CPCY02E60/10
Inventor 陈元刚梁巨江胡鹏何鹏
Owner 深圳市欣迪盟科技有限公司
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