Air conditioning system of electric bus and electric bus

Abstract

The invention discloses an air conditioning system of an electric bus and the electric bus. The air conditioning system of the electric bus comprises an inverter compressor, a condenser and an evaporator. The inverter compressor is connected with the condenser and the evaporator through a four-way valve. The air conditioning system of the electric bus further comprises a defogging system and a battery heat exchange system, wherein the defogging system and the battery heat exchange system are both connected with the evaporator in parallel. The defogging system comprises a heat exchanger, a first solenoid valve and capillary tubes. One end of the heat exchanger is connected with an exhaust pipe between the inverter compressor and the four-way valve through the first solenoid valve, and the other end of the heat exchanger is connected with a pipe between a first electronic expansion valve and the evaporator through capillary tubes. According to the air conditioning system of the electricbus and the electric bus, the air conditioning cooling or heating of the whole bus, and the cooling or the preheating of a battery unit are realized with one air conditioning system, the heat pump warm air defogging function can be realized at the same time, and not only are the problems that extra cost is caused because two air conditioning systems are adopted, and the runtime of a whole bus is decreased because of the increased self weight solved, but also the problems that because warm air is generated in an electric heating manner, the efficiency is low, the energy consumption is high, andno energy saving is achieved are solved.

Description

technical field [0001] The invention relates to the technical field of automobile air-conditioning, in particular to an air-conditioning system of an electric bus and the electric bus. Background technique [0002] With the continuous increase of automobile consumption, traditional automobiles rely on burning gasoline, diesel and other fossil fuels to provide power, which not only consumes a lot of energy, but also emits a large amount of automobile exhaust, which causes more and more environmental pollution and becomes a source of smog. one of the main reasons. Therefore, energy-saving and environment-friendly new energy vehicles are more and more favored by the government and society, especially the pure electric vehicles that have been widely used at present. Pure electric vehicles rely on the battery pack to provide power to the motor, and at the same time rely on the battery pack to provide power for the vehicle's air-conditioning system and control system. As an energ...

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Problems solved by technology

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an air-conditioning system for an electric bus and an electric bus, so as to realize the air-conditioning refrigeration or heating of the whole vehicle, the cooling or preheating of the battery pack through a set of air-conditioning system, At the same time, it can also realize the heat pump warm air defogging function, which not only solves the problem of the cost waste of the two air-conditioning systems and the increase in self-weight, which leads to the reduction of the cruising range of the vehicle, but also solves the problems of low efficiency and high power consumption of the electric heating heater. question

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