New-energy cold and heat air exchange system of air conditioner for automobile

Abstract

The invention discloses a new-energy cold and heat air exchange system of an air conditioner for an automobile, which comprises an evaporator (2), a condenser (9), an electric compressor (11) and a dry liquid storage tank (30) connected through a pipeline 1 (5) to form a closed system, arranged in a box body and controlled by an electronic control system, wherein the front part of the box body is provided with an evaporation case (17); the rear part of the box body is provided with a condensing case (16); and the middle part of the box body is provided with the electronic control system. The new-energy cold and heat air exchange system is characterized in that the refrigeration process is that a refrigerant is gasified by the evaporator (2), then enters the electric compressor (11), the condenser (9), and the dry liquid storage tank (30) and enter the evaporator (2) again to disperse the cold air into inside of a compartment, so that the refrigeration is finished. In the whole circulating process, the electric compressor plays a role of compressing and delivering steam of the refrigerant; the electronic digital control panel computes according to parameters of each sensor through a mathematical model and experiential data, accurately controls the rotation speed of the electric compressor, the opening degree of an electronic expansion valve and reasonable air quantity of a fan, so that the system is kept at the best working state.

Description

technical field [0001] The invention relates to a new energy vehicle used for power electronics, high-energy motors, cooling and heating energy exchange, and a mechanical and electrical integrated air conditioning cooling and heating air exchange system. Background technique [0002] The core component of the known domestic new energy vehicle air-conditioning cooling and heating air exchange system: the technical route of the electric compressor is a direct current inverter alternating current—AC inverter drives a permanent magnet brushless motor, an integrated compressor directly connected to the scroll compressor Machines, there are generally problems such as unstable driving circuit, backward machining equipment, insufficient processing accuracy, low output power, and the energy efficiency ratio of electric compressors is only about 1.3-1.6, so it is difficult to enter the market in batches. The electric air-conditioning system with low energy efficiency will consume a lo...

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Problems solved by technology

[0002] The core component of the known domestic new energy vehicle air-conditioning cooling and heating air exchange system: the technical route of the electric compressor is a direct current inverter alternating current—AC inverter drives a permanent magnet brushless motor, and is directly connected to the integrated compressor of the scroll compressor machine, there are generally problems of unstable drive circuit, backward machining equipment, insufficient processing accuracy, low output power, and the energy efficiency ratio of electric compressors is only about 1.3-1.6, so it is difficult to enter the market in batches

The electric air-conditioning system with low energy efficiency will consume a lot of battery energy, which may reduce the continuous capacity of new energy vehicles by 50%! Therefore, it is imminent to develop a high-efficiency heating and cooling air exchange system for new energy vehicles!

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