Novel safety structure for power battery module

A power battery and safety structure technology, which is applied in battery pack parts, structural parts, secondary battery repair/maintenance, etc., can solve the problem of high cost, achieve the effect of convenient application, simple structure, and high cost

Inactive Publication Date: 2016-11-23
BEIJING BOSTON POWER BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The invention proposes a new safety structure for power battery modules, which solves the contradiction between the structural strength and sensitivity of the conductive parts in the scheme of protecting the circuit by fusing the conductive parts, and also solves the problem of using fuses in multiple branches high cost problem

Method used

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  • Novel safety structure for power battery module
  • Novel safety structure for power battery module
  • Novel safety structure for power battery module

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0028] The safety structure of the novel power battery module in this embodiment includes a protected circuit and a bimetal 4, wherein the bimetal 4 is connected in the protected circuit as a conductive element. There is a weak spot 5 on the bimetal 4, and the tensile strength of the weak spot 5 is smaller than that of other positions of the bimetal 4, and the way to realize it can be by cutting or punching a hole on the bimetal 4. .

[0029] The bimetal shee...

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Abstract

The invention provides a novel safety structure for a power battery module. The safety structure comprises a protected circuit and bimetallic strips, wherein the bimetallic strips are connected in the protected circuit and serve as conducting elements; the bimetallic strips are provided with strength-weak parts. The safety structure is simple, convenient to apply and low in cost; in a scheme that the circuit is protected by fusing the conducting elements, the safety structure solves contradiction between the structural strength and the sensitivity of the conducting elements, and further solves the problem that the cost is too high due to use of fuses in a plurality of branch circuits.

Description

technical field [0001] The invention relates to a safety protection device for a strong electric circuit in a battery box of an electric vehicle, belongs to the technical field of electric vehicles, gasoline-electric hybrid vehicles or energy storage power supply systems, and in particular relates to a novel power battery module safety structure. Background technique [0002] At present, in the power battery system of electric vehicles, the safety protection measures for abnormal current in the circuit are mainly realized by the battery management system BMS and various forms of fuses. The implementation process of the safety protection function of the BMS is generally: the sensor collects information to the processor, makes a judgment after comparison, and then issues instructions such as power-off and output power reduction. This method is severely limited by factors such as the number of sensors, sensor location distribution, sensor sensitivity, environmental interference...

Claims

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Application Information

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IPC IPC(8): H01M10/42H01M2/34
CPCY02E60/10
Inventor 高淑睿叶国华伯儒尔杨·罗格林纳
Owner BEIJING BOSTON POWER BATTERY
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