Cold conduction structure of intelligent lithium battery group

• Main Authors: ZOU XIANPING, ZHENG QINGFEI, ZHENG JUNTAO, XIANG CHAOYAO
• Format: Patent
• Language: Chinese; English
• Published: 14.12.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The cold conduction structure comprises a liquid return bottom plate, a cold conduction liquid outer shell barrel is fixedly installed on the upper surface of the liquid return bottom plate, a cold conduction liquid inner barrel is fixedly installed in the cold conduction liquid outer shell barrel, and an ejector rod bin is fixedly installed on the outer surface, close to the upper end surface, of the cold conduction liquid outer shell barrel. An expansion valve mechanism capable of controlling the liquid flow according to the heating condition is arranged in the ejector rod bin. During cold conduction, the temperature of each battery cell of the lithium battery pack can be controlled on the same more accurate levelness, so that potential safety hazards caused by inaccurate control of the internal temperature of the lithium battery pack due to overlarge temperature difference between the battery cells in the battery pack are avoided; by means of the expansion valve mechanism, the flow of the cold conduction l