Fire early warning method, device and system for lithium battery pack and storage medium

A kind of early warning equipment, lithium battery technology, applied in fire alarms with electric action, fire alarms with radiation action, fire alarms with smoke/gas action, etc., can solve the problem that lithium battery packs cannot give correct warnings, etc. problems, to avoid inconvenience, avoid accidents, and ensure safety

Inactive Publication Date: 2021-02-02
武汉动力电池再生技术有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, it is necessary to provide a fire warning method, device, system and storage medium for lithium battery packs, so a

Method used

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  • Fire early warning method, device and system for lithium battery pack and storage medium
  • Fire early warning method, device and system for lithium battery pack and storage medium
  • Fire early warning method, device and system for lithium battery pack and storage medium

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Embodiment Construction

[0039] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

[0040] see figure 1 , the fire early warning method of the lithium battery pack that the embodiment of the present invention provides, comprises the following steps:

[0041] S100. Respectively acquire the real-time temperature of the lithium battery cell detected by the temperature sensor, the real-time smoke signal detected by the smoke sensor, and the real-time light signal detected by the photosensitive sensor.

[0042] In this embodiment, the current danger level of the lithium battery pack is judged by obtaining three parameters of temperature, smoke and light signals, and different lev...

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Abstract

The invention relates to a lithium battery pack fire early warning method, device and system and a storage medium. The method comprises the steps of: obtaining the real-time temperature, detected by atemperature sensor, of a lithium battery pack cell, a real-time smoke signal detected by a smoke sensor and a real-time optical signal detected by a photosensitive sensor respectively; comparing thereal-time temperature with a preset temperature threshold, and sending a temperature early warning signal of a corresponding level according to a comparison result and the real-time temperature risingrate; comparing the real-time smoke signal with a preset smoke threshold value, and sending a smoke early warning signal of a corresponding level according to a comparison result; comparing the real-time optical signal with a preset optical threshold, and sending out an optical early warning signal of a corresponding level according to a comparison result; and sending a corresponding fire response instruction according to the temperature early warning signal, the smoke early warning signal or the light early warning signal. The problem that a lithium battery pack of an existing new energy vehicle cannot achieve correct early warning according to the fire situation is solved.

Description

technical field [0001] The invention relates to the technical field of fire early warning, in particular to a fire early warning method, equipment, system and storage medium for a lithium battery pack. Background technique [0002] As the society pays more and more attention to the environment, the application of new energy vehicles is becoming more and more extensive, and the safety of new energy vehicles has attracted more and more attention. [0003] The power core of new energy vehicles is lithium battery. Lithium battery has the advantages of high working voltage, small size, light weight, high energy, no memory effect, no pollution, and long cycle life. However, because lithium battery is easy to generate heat when it is working, If the work is not stopped in time when the fever is severe, there may even be an explosion accident. [0004] However, the existing new energy vehicles lack an early warning system, so it is impossible to generate an early warning for the fi...

Claims

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Application Information

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IPC IPC(8): G08B17/06G08B17/10G08B17/12H01M10/42H01M10/48
CPCG08B17/06G08B17/10G08B17/12H01M10/4285H01M10/486Y02E60/10
Inventor 许开华宋琦阳婕
Owner 武汉动力电池再生技术有限公司
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