Electric vehicle power battery box liquid leakage detection system and detection method thereof

A power battery and electric vehicle technology, applied in the field of electric vehicle power battery box leakage detection system, can solve problems such as damaged electrolyte, potential safety hazards, battery failure capacity attenuation, etc., achieve flexible use, high degree of intelligence, and improve driving safety effect
CN106532146AInactive Publication Date: 2017-03-22ZHEJIANG CHAOWEI CHUANGYUAN INDUSTRAIAL
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG CHAOWEI CHUANGYUAN INDUSTRAIAL
Publication Date
2017-03-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an electric vehicle power battery box liquid leakage detection system and a detection method thereof. The liquid leakage detection system comprises a plurality of liquid leakage detection devices, a signal processing unit, and an alarm unit, which are arranged in a power battery box. The output terminals of the liquid leakage detection devices are connected to the input terminal of the signal processing unit, and the output terminal of the signal processing unit is connected to the control terminal of the alarm unit. According to the detection method, the liquid leakage detection devices can detect whether liquid leakage happens in the battery box in real time, once the liquid leakage is detected, the signal processing unit can trigger the alarm unit to give off an alarm, moreover, the liquid leakage alarm can also be graded, thus a driver or related personnel can clearly know the leakage degree and carry out a corresponding treatment more pertinently. The using is more flexible, the intelligent degree is high, and the traveling safety is improved.
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Description

technical field

[0001] The invention relates to the field of electric vehicle manufacturing, in particular to a liquid leakage detection system and a detection method for a power battery box of an electric vehicle. Background technique

[0002] With the development of new energy, a large number of lithium-ion batteries are used in electric vehicles. In order to make charging and battery replacement faster and more convenient, the power batteries on electric vehicles generally exist in the form of battery boxes, that is, to install multiple lithium-ion batteries. Into the box to form a modular power battery. At present, the power battery pack is mainly assembled with a soft-packed polymer lithium-ion battery. The three sides of the aluminum-plastic film casing that constitutes the single battery are sealed by heat and pressure, and there is a risk of leakage from the plastic-sealed side. Moreover, electric vehicles will inevitably vibrate during driving. The friction and ext...

Claims

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