Battery system safety protection system and battery system

A technology of safety protection and battery system, applied in battery/fuel cell control devices, electrical devices, electric vehicles, etc., can solve problems such as low safety, and achieve the effect of ensuring safe operation and realizing passive safety protection.

Active Publication Date: 2020-01-03
SHANGHAI GUOXUAN NEW ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a battery system safety protection system and the battery system, which solves the technical problem of low safety during the use of the battery pack in the prior art

Method used

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  • Battery system safety protection system and battery system

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

[0024] In the first aspect, the present invention provides a safety protection system for a battery system, such as figure 1 As shown, the safety protection system includes a gas monitoring device 2; the gas monitoring device 2 is used to connect to the battery management system 8, and when it is detected that the concentration of the characteristic gas emitted by the battery pack 1 in the battery system is greater than the first preset When the ...

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Abstract

The invention relates to a safety protection system of a battery system and the battery system. The safety protection system comprises a gas monitoring device; the gas monitoring device is used for being connected to a battery management system and sending an early warning signal to the battery management system when it is detected that the concentration of characteristic gas exhausted out of battery packs in the battery system is larger than the first preset threshold value; the battery management system is connected to a vehicle control unit and a high-voltage compartment of the battery system, and the high-voltage compartment is connected with the battery packs to form a controlled circuit; the battery management system is used for sending the early warning signal to the vehicle control unit when receiving the early warning signal; and the vehicle control unit is used for emitting an instruction used for cutting off an inner circuit of the high-voltage compartment through the battery management system when receiving the early warning signal so that the controlled circuit can be disconnected. The safety protection system is used for managing and controlling the battery failure risk in real time, autonomous connection and disconnection can be conducted when the failure risk exists, the passive safety protection for the battery packs is achieved, and safe operation of the battery packs is ensured.

Description

Technical field [0001] The invention relates to the technical field of battery protection, in particular to a safety protection system and a battery system of a battery system. Background technique [0002] When the battery system is overcharged or working with high current for a long time, the temperature of the battery pack will increase. In severe cases, thermal runaway may occur, which will endanger the safety of the battery pack. Since many batteries are arranged in close proximity, heat is easily diffused, causing thermal runaway of other batteries. Such a chain reaction will greatly increase the risk of failure of the battery system. [0003] The current use safety of the current battery system is usually monitored through a battery management system (BMS), which is an active safety protection measure. But the BMS management system as an integrated circuit has a certain risk of failure. Therefore, how to improve the safety of the battery pack during use, especially the pas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/10B60L3/00
CPCB60L3/0046B60L58/21Y02T10/70
Inventor 王永周华林志宏
Owner SHANGHAI GUOXUAN NEW ENERGY CO LTD
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