Heating insulation box for electromobile power battery

The utility model provides a heating insulation box for an electromobile power battery. The heating insulation box is structurally characterized in that a temperature sensor is mounted in a box body; a multi-temperature flow guide device is arranged in the box body, and composed of two interlayers communicated with each other; a plurality of air outlets are formed in the inner layer of each interlayer; an air inlet of the multi-temperature flow guide device is communicated with a fuel heater in a driving cab through a connecting pipeline; a valve is arranged on the connecting pipeline; the sum of the sectional areas of all air outlets in the multi-temperature flow guide device is smaller than the sectional area of the air inlet. The heating insulation box realizes multiple temperatures through the multi-temperature flow guide device, and hot air flows are the same so that uniform temperature is realized in the box body. As a result, the capacity of the battery is not affected by the external temperature, an e