Storage battery protection system

Abstract

The invention provides a storage battery protection system which comprises a gate assembly which comprises a gate body and a gate support which are oppositely arranged on the inner wall of a vent hole; the optical detection device comprises a first optical detection assembly and a second optical detection assembly which are arranged on the inner wall of the vent hole; and the gate driving device is in driving connection with the gate body and is in communication connection with the optical detection device, so that the gate body is controlled to be in contact with or away from the gate support according to the light receiving condition of the optical detection device. According to the scheme, when water enters the storage battery, the light transmittance between the first optical detection assemblies is reduced, the gate driving device drives the gate assembly to make contact with the gate support, and therefore the purpose of preventing water from entering the storage battery is achieved; and when too much gas is generated in the storage battery, the light transmittance between the second optical detection assemblies is reduced, and the gate driving device drives the gate assembly to be away from the gate support, so that the storage battery can exhaust the gas generated in the storage battery.

Description

technical field [0001] The invention relates to the technical field of electric vehicle battery protection, in particular to a battery protection system. Background technique [0002] With people's emphasis on environmental issues, new energy vehicles have gradually entered people's daily lives. For new energy vehicles, the performance of the battery is an important criterion to measure its performance. [0003] During the use of electric vehicle batteries, they are always in a state of charging and discharging, so the internal heat will continue to be generated. In order to avoid the problem that the internal pressure of the electric vehicle battery is too high due to the closedness and internal heat accumulation, the casing 11 of the electric vehicle battery is usually set as follows: Figure 1a with Figure 1b Air vent 12 is shown. In addition, when the electric vehicle is in use, wading may occur. In order to prevent water from entering the interior of the battery thr...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem in the prior art that the waterproof and breathable membrane of the electric vehicle battery has a poor ventilation effect, and when the heat generated by the battery is high, the internal pressure of the battery may be too large, which may cause an explosion

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