Electric Vehicle Air Conditioning System

Abstract

The invention discloses an air conditioning system of an electric car. The air conditioning system comprises a refrigerating cycle system composed of an evaporator, a compressor, a condenser and a throttling device. The compressor comprises a shell, a rotary shaft is arranged in the shell, a direct-current motor assembly is arranged at one end of the rotary shaft, and an air compressing assembly is arranged at the other end of the rotary shaft. The air compressing assembly comprises at least two air compressing units arranged side by side; each air compressing unit comprises a compressing cylinder, a round inner cavity is formed in each compressing cylinder, eccentric shafts in one-to-one correspondence with the compressing cylinders are arranged on the rotary shaft, the eccentric shafts are sleeved with annular pistons synchronously rotating with the eccentric shafts, and the sum of the eccentric distance between the eccentric shafts and the radial thickness of the annular pistons is equal to the inner diameter of the round inner cavities. On the view in the axial direction of the rotary shaft, the eccentric shafts corresponding to all the air compressing units are annularly and evenly distributed; a separation plate is arranged between every two adjacent compressing cylinders, a bearing I is arranged on the compressing cylinder closest to the direct-current motor assembly, and a bearing II is arranged on the compressing cylinder farthest away from the direct-current motor assembly.

Description

Technical field [0001] The invention relates to an air conditioning system, in particular to an electric vehicle air conditioning system. Background technique [0002] The car has been around for more than one hundred years. With the gradual improvement of living standards, cars have become a necessity in people's lives and an extension of room life. The requirements for the room environment also extend to cars, and air conditioning is one of the important content. The main purpose of installing air conditioning devices in cars is to create a comfortable environment. [0003] The compressor is the heart of the automobile air-conditioning device, and its performance determines the performance of the entire air-conditioning device. In traditional fuel vehicles, the compressor is connected to the vehicle engine by the engine, while in electric vehicles, it is necessary to use electricity to drive the compressor to work. With the increasing depletion of world resources, the increas...

AI Technical Summary

Problems solved by technology

However, since the existing electric vehicle air conditioning system still uses a large number of compressors similar to those of fuel vehicle compressors, there are disadvantages such as large noise and vibration, which affect the ride comfort

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