Frequency conversion air conditioner for new energy passenger car

Abstract

The invention relates to a frequency conversion air conditioner for new energy passenger car. A frequency conversion compressor is arranged at the middle part of an air conditioner, the two sides of the compressor are provided with a control unit and a power system; a condensation component is arranged at the front end of the air conditioner, the middle part is a condensation fan, and condensers are arranged at the two side in an inversed V shape; an evaporation component is arranged at the rear end of the air conditioner, the middle part is a return air inlet, the two sides are provided with an evaporation fan, and an evaporator is arranged between the evaporation fan and the return air inlet; the front end of the frequency conversion compressor is communicated with a four-way change valve by virtue of a check valve, the rear end is communicated with the four-way change valve by virtue of a gas-liquid separator, the four-way change valve is respectively connected with the condenser and the evaporator, and the condenser is connected with the evaporator by virtue of a drier and a bidirectional expansion valve; all pipelines are connected by adopting a welding way, all the electric components are connected and arranged in an overhead type structure, and only a power supply is externally connected with a control cable. The invention has the advantages that structure is compact, occupying space is small, and energy consumption is low, thus being applicable to new energy passenger car.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of automobile air conditioners, in particular to an inverter air conditioner for new energy passenger cars. Background technique [0002] Existing tour buses and urban public transport buses are generally equipped with air-conditioning devices. Most of the existing bus air-conditioning devices are top-mounted structures, and the compressors use fixed-frequency compressors. The air-conditioning relies on the start and stop of the compressor to achieve temperature control. The power supply of the fan and compressor is not well arranged, which is difficult to Frequency conversion control generally has the problems of large volume, unreasonable layout of internal parts, and high power consumption. In order to change the power system of buses, reduce fuel consumption and reduce exhaust emissions, various new energy buses have emerged as the times require. The so-called new energy buses...

AI Technical Summary

Problems solved by technology

[0004] (1) The compressor adopts a fixed frequency method, which is large in size and takes up a lot of space, resulting in a large volume of the designed air conditioner and an increase in overall weight

[0005] (2) The compressor of the air conditioner, the evaporating fan and the condensing fan share an inverter, or the evaporating fan and the condensing fan share a frequency converter, which makes it difficult to adjust the speed of the fan and cannot realize the adjustment of the speed of the evaporating fan

[0006] (3) The compressor is a fixed-frequency compressor, which cannot be adjusted in frequency, and the energy-saving effect is not good; even if some inverter compressors are used, the automatic control of frequency adjustment cannot be realized

[0007] (4) The electric heating system is used for heating, and the energy efficiency ratio is very low

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