Battery temperature control method and battery temperature control circuit

Abstract

The invention relates to a battery temperature control method and a battery temperature control circuit. The battery temperature control method comprises the steps of obtaining a first detection signal corresponding to an environment temperature; detecting whether the first detection signal is matched with a first preset signal or not; when the first detection signal is matched with a first presetsignal, obtaining a second detection signal corresponding to the battery temperature; detecting whether the second detection signal is matched with a second preset signal or not; and when the seconddetection signal is matched with the second preset signal, starting a heating circuit. According to the method, the matching condition of the first detection signal and the first preset signal is detected. When the first detection signal is matched with the first preset signal, it is indicated that the environmental temperature is low. At this moment, the matching condition of the second detectionsignal and the second preset signal is further detected. When the second detection signal is matched with the second preset signal, it is indicated that the temperature of the battery is low. After that, the heating circuit is started to heat the battery, so that the temperature of the battery rises. The normal charging and discharging of the battery in the low-temperature environment can be ensured.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery temperature control method and a battery temperature control circuit. Background technique [0002] With the improvement of people's living standards, in the case of power outages, emergency lights are used as lighting tools for emergency lighting or emergency power supply places. Traditional emergency lights are discharged through their own charging and discharging batteries, so that the lighting device of the emergency lights continues to illuminate. The effective charging and discharging temperature of traditional charging and discharging batteries needs to be greater than minus 30 degrees. In the case of extremely low ambient temperature, the battery If the temperature is lower than this temperature, it will be almost impossible to charge and discharge due to the loss of activity of the electrolyte, making the rechargeable battery unable to work normally. Conten...

AI Technical Summary

Problems solved by technology

The traditional emergency lights are discharged through their own charging and discharging batteries, so that the lighting device of the emergency lights continues to illuminate. The effective charging and discharging temperature of the traditional charging and discharging batteries needs to be greater than minus 30 degrees, and when the ambient temperature is extremely low, the battery If the temperature is lower than this temperature, it will be almost impossible to charge and discharge due to the loss of activity of the electrolyte, making the charge and discharge battery unable to work normally.

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