Equalization circuit for rechargeable battery, rechargeable battery system and electric vehicle

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Equalization circuit for rechargeable battery, rechargeable battery system and electric vehicle

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WU NAN

The embodiment of the invention discloses an equalization circuit for a rechargeable battery, a rechargeable battery system and an electric vehicle. The rechargeable battery comprises a plurality of battery units; the equalization circuit comprises a light-emitting module which is electrically connected with the rechargeable battery, detects that the voltage difference between any two battery units exceeds a first threshold voltage, and converts the electric energy of the battery units into light energy; a photovoltaic cell receives light energy and converts the light energy into electric energy. According to the technical scheme of the embodiment of the invention, the generation of heat can be reduced, the situation that the equalization circuit generates a large amount of heat along with the increase of the battery capacity, heat accumulation is formed, the temperature of equipment exceeds the bearing limit and the equipment is damaged is avoided, and meanwhile, the energy waste is reduced.

本发明实施例公开了一种用于充电电池的均衡电路、充电电池系统和电动车辆。其中，充电电池包括：多个电池单元；均衡电路包括：发光模块，与充电电池电连接，侦测任意两个电池单元的电压差超过第一阈值电压，转换电池单元的电能为光能；光伏电池，接收光能，转换光能成电能。本发明实施例的技术方案可以减少热量的产生，避免随着电池容量的增大，均衡电路产生大量的热量，形成热堆积，造成设备的温度超过承受极限而损坏，同时减少能量的浪费。

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Title :

Equalization circuit for rechargeable battery, rechargeable battery system and electric vehicle

Additional title:

一种用于充电电池的均衡电路、充电电池系统和电动车辆

Contributors:

WU NAN (author)

Publication date :

2021-11-30

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Chinese

Classification :

IPC:

H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen