Electric Vehicle Air Conditioning System

Abstract

The invention discloses an electric vehicle air-conditioning system, which includes a heating system, the heating system includes a compressor, a condenser and an external heat exchanger, the condenser is located in the air supply channel of the vehicle, the high-pressure outlet end of the compressor is connected with a connecting pipe I and It is connected with the inlet end of the condenser through the connecting pipe I, and the outlet end of the condenser is connected with the connecting pipe II and communicated with the inlet end of the external heat exchanger through the connecting pipe II. The connecting pipe II is located at the front end of the external heat exchanger An expansion valve I is installed, and the outlet end of the external heat exchanger is connected with a connecting pipe III and communicated with the low-pressure inlet end of the compressor through the connecting pipe III. A gas-liquid separator is installed on the connecting pipe III and close to the compressor. The invention adopts the principle of heat exchange, improves the energy efficiency ratio of heating and heating, reduces the energy consumption of the battery of the electric vehicle, and further reduces the impact on the cruising range of the electric vehicle.

Description

technical field [0001] The invention relates to an air conditioner, in particular to an electric vehicle air conditioner system. Background technique [0002] At present, new energy vehicles are rising rapidly, and the cruising range has become the focus of public attention. Ultra-traditional fuel vehicles. As a large power consumer, the air conditioner affects the cruising range of the vehicle. In the cooling state, the cruising range of the vehicle drops by 15%, and the energy efficiency ratio is generally around 2.0. However, in cold weather, the heating mode is used. Unlike fuel vehicles, electric vehicles use engine The residual heat heats the air. At present, PTC air heating and water heating are generally used for heating in the market. The energy efficiency ratio is less than 1.0, and the energy efficiency of heating is much smaller than that of cooling. In the low-temperature heating state, the cruising range of the vehicle will drop by 40. %. Using conventional ...

AI Technical Summary

Problems solved by technology

As a large power consumer, the air conditioner affects the cruising range of the vehicle. In the cooling state, the cruising range of the vehicle drops by 15%, and the energy efficiency ratio is generally around 2.0. However, in cold weather, the heating mode is used. Unlike fuel vehicles, electric vehicles use engine The residual heat heats the air. At present, PTC air heating and water heating are generally used for heating in the market. The energy efficiency ratio is less than 1.0, and the energy efficiency of heating is much smaller than that of cooling. In the low-temperature heating state, the cruising range of the vehicle will drop by 40. %

The use of conventional heating methods will seriously affect the mileage of the vehicle

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