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Pressure detecting device for batteries and detecting method thereof

The technology of a detection device and detection method is applied in the fields of battery deformation detection devices and battery pressure detection devices, which can solve the problems of low battery safety, achieve significant practical value and economic benefits, enhance safety and stability, and increase complexity. sex and cost effects

Inactive Publication Date: 2012-07-11
NANJING SHUANGDENG SCI TECH DEV RES INST
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  • Abstract
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Problems solved by technology

[0011] The purpose of the present invention is to solve the problem of low battery safety in the battery management system, and propose a battery pressure detection device and its detection method

Method used

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  • Pressure detecting device for batteries and detecting method thereof
  • Pressure detecting device for batteries and detecting method thereof
  • Pressure detecting device for batteries and detecting method thereof

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Such as figure 1 , 2 As shown, a battery pressure detection device, a pressure detection unit 2 is respectively arranged between adjacent single battery modules 1 of the battery pack, each pressure detection unit 2 is connected in series in sequence, and the output signal of the series pressure detection unit 2 The terminal is connected to the alarm circuit board; once the pressure detection unit 2 detects that the single battery module 1 is deformed, the circuit of the pressure detection unit 2 is disconnected, and the alarm circuit board outputs a pressure alarm signal.

[0030] The side wall of the single battery module 1 of the present invention is a plane for placing the pressure detection unit 2, and the single battery module 1 is preferably a square battery or a battery composed of several circular batteries with a flat side wall.

[003...

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Abstract

Provided are a pressure detecting device for batteries and a detecting method thereof. A pressure detecting unit is respectively arranged between adjacent single batter modules of a battery pack, the pressure detecting units are sequentially connected in series, and the output signal ends of the pressure detecting units connected in series are connected with a warning circuit board. Once the pressure detecting units detect that the single batter modules deform, lines of the pressure detecting units are disconnected, and the warning circuit board outputs a pressure warning signal. Compared with a traditional battery managing system, pressure detecting devices are added, the safety and the stability of the system can be enhanced, simultaneously complexity level and the cost of the battery managing system are not obviously increased, and the pressure detecting device for batteries and the detecting method have remarkable practical value and economic benefit.

Description

technical field [0001] The invention relates to the field of battery management, in particular to a battery deformation detection device, in particular to a battery pressure detection device and a detection method thereof. [0002] Background technique [0003] At present, the battery management system (BATTERY MANAGEMENT SYSTEM), the main object is the secondary battery. Secondary batteries have the following disadvantages, such as less stored energy, short life, problems in series and parallel use, safety in use, and difficulty in estimating battery power. The performance of batteries is very complex, and the characteristics of different types of batteries vary greatly. The battery management system (BMS) is mainly to improve the utilization rate of the battery, prevent the battery from overcharging and overdischarging, prolong the service life of the battery, and monitor the state of the battery. As far as the power battery management system is concerned, the main func...

Claims

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Application Information

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IPC IPC(8): H01M10/48G01L19/00
CPCY02E60/12Y02E60/10
Inventor 帅映伍
Owner NANJING SHUANGDENG SCI TECH DEV RES INST
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