A kind of control method and control device of automobile battery module and automobile battery module

Abstract

The present invention provides an automobile battery module, a control method and a control device for the automobile battery module, wherein the automobile battery module includes: a battery module body; a battery box, and the battery module body is arranged in the The inside of the battery case, and a heat conduction structure is provided between at least one side wall of the battery case and the battery module body, wherein the side wall provided with the heat conduction structure is far away from one of the battery modules. The side is also provided with a heat conduction air duct; the air duct baffles are respectively arranged at the air outlet and the air inlet of the heat conduction air duct. The automobile battery module and the control method of the automobile battery module provided by the present invention can realize heat dissipation and heating, ensure that the heat of heating is not lost, and at the same time do not damage the waterproof and dustproof level of the box body, and satisfy the operation of electric vehicles in different states. At the same time, it improves the temperature adaptability of electric vehicles and prolongs the life of the power supply system.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an automobile battery module, a control method and a control device for the automobile battery module. Background technique [0002] As the energy storage element of electric vehicles, the battery pack is also one of the key components of electric vehicles, which directly affects the performance of electric vehicles. Power batteries are particularly sensitive to temperature changes. Especially the large-capacity, high-power lithium-ion batteries used in vehicles. The loading space on the vehicle is limited, the number of batteries connected to the vehicle is large, and the internal arrangement of the power supply system is relatively dense. When the vehicle is running in different states of high speed, low speed, acceleration, deceleration, etc., the battery will be discharged at different rates, and a large amount of heat will be generated at different heat rates. Coupled with time ...

AI Technical Summary

Problems solved by technology

Long-term accumulation will cause some batteries to overcharge and overdischarge, which will affect the life and performance of the battery and cause safety hazards

If the battery pack of an electric vehicle cannot be dissipated in time at high temperature, the temperature of the battery pack system will be too high and the temperature distribution will be uneven, which will eventually reduce the battery charge and discharge cycle efficiency and lifespan. In severe cases, it will also cause thermal runaway and affect the battery. safety and reliability; at low temperatures, the electrochemical reaction inside the battery cannot operate normally due to the influence of temperature, and the battery pack needs to be heated

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