Heating insulation box for electric vehicle power battery

Abstract

The invention discloses a heating thermal insulation cabinet for a power battery of an electric automobile. The structure of the heating thermal insulation cabinet is as follows: a cabinet body is internally provided with a temperature sensor and a shared temperature flow guiding device which is composed of two sandwiched layers in mutual communication; the inner layer of each sandwiched layer is respectively provided with a plurality of air discharge holes; an air inlet of the shared temperature flow guiding device is communicated with a fuel oil heater in a driving room through a connecting pipeline; the connecting pipeline is provided with a valve; the total cross-section area of all the air outlets on the shared temperature flow guiding device is less than the cross section area of the air inlet. According to the invention, shared temperature is realized through the shared temperature flow guiding device, and the flow rate of hot air is equal, and temperature equalization is realized in the cabinet body, so that the capacity of a battery is not affected by the external temperature; an electric automobile can still keep the favorable power property at low temperature so as to guarantee that each module of the battery is equal in temperature, and the driving range is not affected by external temperature; the thermal insulation cabinet is configured, the circulation electric charge and discharge times can be reduced effectively, and the capacity of the battery is ensured; the service life of the battery is prolonged.

Description

technical field [0001] The invention relates to a heating and incubating box for electric vehicle power batteries. The battery is heated by a heater to achieve uniform temperature of each module of the battery and ensure that the performance of the battery is not affected by the external temperature. Background technique [0002] The power battery is an important part of electric vehicles. However, in low temperature environments, the capacity of the power battery will shrink, and there will be temperature differences between the modules of the power battery, which will directly affect the power performance and driving range of the vehicle. In order to maintain a sufficient capacity of the power battery in a low-temperature environment and achieve uniform temperature of each module of the battery pack, it is necessary to install a heating incubator on the power battery. Contents of the invention [0003] The purpose of the present invention is to provide a heating and incu...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a heating and incubating box for electric vehicle power batteries, which can solve the problems of reduced battery capacity and different temperatures of battery modules in low temperature environments by using the cab heater equipped with electric vehicles

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