The invention relates to a plurality of technical fields of active equalization of a power battery of a new energy automobile, integration of DC/DC, replacement of DC/DC and a low-voltage storage battery and the like. According to the scheme 1, a switch controller is arranged in the power battery, the input end of the switch controller is connected with the positive electrodes of all modules or single bodies of the battery and the negative electrode of the last module or single body, two or more non-adjacent battery modules or single bodies are randomly gated under the condition that the output end of the switch controller is closed, and then the active equalization of the battery can be immediately realized. According to the second scheme, a direct-current switching power supply can be connected to the output end of the switch controller, when one or more modules or single bodies are gated to be connected to the switch controller, a low-voltage power supply can be provided for the new energy automobile, equivalently, an active equalization DC/DC is arranged in a battery, and therefore a low-voltage storage battery of the new energy automobile is replaced. According to the scheme 3, when the voltage value of the switch controller gating module or single body is 12 or 24 V, power can be directly supplied to a low-voltage system of the new energy automobile, and therefore DC/DC and a storage battery are replaced.
本发明涉及新能源汽车动力电池主动均衡、集成DC/DC以及替代DC/DC和低压蓄电池等多个技术领域。方案1,动力电池内置开关控制器,开关控制器输入端连接电池所有模组或单体的正极以及最后模组或单体的负极,在开关控制器关闭输出端情况下随机选通两个或多个不相邻电池模组或电池单体,那么可立即实现电池的主动均衡。方案2,可在开关控制器输出端接入直流开关电源,当选通一个或多个模组或单体接入开关控制器时,可以为新能源汽车供低压电源,等同于电池内置主动均衡DC/DC,从而取代新能源汽车低压蓄电池。方案3,开关控制器选通模组或单体电压值为12或24V时,可直接为新能源汽车低压系统供电,从而取代DC/DC和蓄电池。
New energy automobile power battery switch controller
一种新能源汽车动力电池开关控制器
2022-04-15
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
European Patent Office | 2022
|European Patent Office | 2022
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