Charging and discharging temperature adjusting device of battery pack

Abstract

The invention discloses a charging and discharging temperature adjusting device of a battery pack. The charging and discharging temperature adjusting device comprises a shell and a battery assembly, the shell comprises an upper cover and a lower cover, and an air outlet guide plate is arranged at one side of the battery assembly. An air inlet guide plate is arranged at the other side of the battery assembly, a semiconductor chilling plate is arranged at the side, away from the battery assembly, of the air inlet guide plate, and a fan is arranged at one side of the battery assembly. A control button is arranged at the top of the upper cover, a heat shrinkable tube is arranged outside the battery assembly, and the upper cover and the lower cover are fixedly connected through screws. The charging and discharging temperature adjusting device has the advantages of being novel in structure and ingenious in design and being convenient to use, enables the safety performance of the battery cellto be improved, solves the influence of the environment temperature on the normal work of the battery pack, accelerates the cooling of the battery cell, is convenient for the recharging or redischarging after cooling, and has the wide application prospect.

Description

Technical field [0001] The present invention relates to the technical field of batteries, in particular to a charging and discharging temperature adjustment device for a battery pack. Background technique [0002] With the increasing global energy crisis and environmental pollution, countries all over the world have introduced or plan to introduce various restrictions on fuel vehicles, and fuel vehicles will be completely banned in the near future. Power battery packs are the main power source for electric vehicles, currently lead-acid batteries, nickel-hydrogen batteries and lithium-ion batteries. Lithium batteries are electrochemical products and are greatly affected by the environment during use, especially in terms of temperature. In a high temperature environment, the activity of the internal material of the battery changes, the reaction speed is fast during charging and discharging, heat accumulates, and the gas expands. Although the battery structure has safety precaution...

AI Technical Summary

Problems solved by technology

In order to solve the impact of ambient temperature on the normal operation of the battery pack, some manufacturers have installed a cooling device on the battery pack to speed up the cooling of the battery cells to facilitate recharging or discharging after cooling down, but this only solves the problem of high temperature. Can not effectively charge and discharge, and the service life of the battery is short

For the problems in related technologies, no effective solutions have been proposed yet

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