Power battery of motor vehicle provided with air conditioning system

Abstract

The invention discloses a power battery of a motor vehicle provided with an air conditioning system, which is technical characterized in that a heat exchanging fan is arranged on the inner surface of a top cover of a battery packaging box, a battery cell is arranged in the battery packaging box below the heat exchanging fan, a heat conducting plate is arranged at the bottom of the battery packaging box below the battery cell, a refrigerant pipe and a hot water pipe are arranged inside the heat conducting plate, a high-voltage wire connector and a low-voltage wire connector are arranged on a battery control device, an air blower is arranged at an air inlet of the vehicle body, a fan heater and an evaporator are arranged on a ventilation pipeline between the air blower and an air outlet of a passenger compartment, an electric air conditioning compressor and a condenser are connected in series and then connected in parallel with the refrigerant pipe inside the heat conducting plate on the evaporator, and a water circulation pump and a water storage tank provided with a heater are connected in series and then connected in parallel with the hot water pipe inside the heat conducting plate on the fan heater. The power battery of the motor vehicle adopts the water cooling method and air cooling method simultaneously. The air conditioner takes the heat of the battery away or heats the battery, and the fan is used for causing forced convection so as to guarantee heat balance of the battery and further guarantee the working performance and service life of the lithium battery.

Description

technical field [0001] The invention belongs to the technical field of automobile power, in particular to a motor vehicle power battery with an air-conditioning system with controllable working temperature. Background technique [0002] As the world's oil energy becomes increasingly tense, electric vehicles and hybrid vehicles have become key development projects for domestic automobile manufacturers. As new energy vehicles, their market value and technical content are the highest. Among them, the power battery provides power for the motor. Energy, the motor provides power for the vehicle to ensure the normal running of the vehicle. The biggest problem with the use of power batteries is their lifespan and work performance, because the working temperature of power batteries is relatively high; that is, 10°C to 45°C. When the actual working temperature exceeds the range of 10°C to 45°C, the service life and working performance of the battery will be seriously affected. At th...

AI Technical Summary

Problems solved by technology

The disadvantage is that the air temperature depends on the external ambient temperature. When the ambient temperature changes (such as seasonal exchange), the cooling effect of the battery will also change, resulting in unstable operating temperature and thermal load uniformity of the battery, thus affecting the battery. working performance and service life

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