Automobile thermal management system and new energy automobile

Abstract

The invention relates to an automobile thermal management system which comprises a refrigerating medium loop, the refrigerating medium loop comprises a compressor, an air conditioner box, a first branch and a second branch, the air conditioner box comprises an evaporator and a condenser, an inlet of the condenser communicates with an outlet of the compressor, and an outlet of the condenser communicates with an inlet of the evaporator through the first branch. The first branch is communicated with an inlet of the compressor through a second branch, an outlet of the evaporator is communicated with the inlet of the compressor, and a first throttling piece is arranged on the first branch so as to control the flow of a refrigerating medium flowing into the evaporator and conduct throttling and pressure reduction on the refrigerating medium flowing into the evaporator. Two branches are arranged in the refrigerating medium loop, a high-temperature and high-pressure refrigerating medium flowing out of the compressor flows into the condenser and releases heat in the condenser, the refrigerating medium subjected to heat exchange is divided into two paths, one path flows into the evaporator through the first branch to lower the surface temperature of the evaporator, and the other path directly flows back to the compressor through the second branch to lower the surface temperature of the evaporator. And dehumidification at different temperatures is met through shunting.

Description

technical field [0001] The present application relates to the technical field of new energy vehicles, in particular to an automotive thermal management system and a new energy vehicle. Background technique [0002] The thermal management system is an important part of the new energy vehicle, which greatly affects the running performance of the vehicle and the user's comfort. The thermal management system includes a refrigerating medium circuit, and the refrigerating medium circuit at least includes a compressor and an air-conditioning box, and the air-conditioning box is provided with a condenser, an evaporator and a fan. In a low temperature environment, new energy vehicles have the need for heating and dehumidification. In the prior art, the high temperature and high pressure refrigerant flowing out of the compressor flows into the condenser, and releases heat to the passenger compartment under the action of the fan, so that the achieve heating. At the same time, the ref...

AI Technical Summary

Problems solved by technology

However, if the temperature of the refrigerant medium in the evaporator is too low, it is easy to cause the surface temperature of the evaporator to be too low. When the evaporator exchanges heat with the humid air, the moisture in the humid air will frost or freeze on the fins, blocking the fins of the evaporator. The contact heat exchange between the sheet and the air will affect the normal operation of the entire thermal management system, and if you want to defrost, you need to ensure that the temperature of the refrigerant flowing into the evaporator is relatively high, so that the heat released by the refrigerant at the condenser will be will decrease, affect the heating effect of the passenger compartment, and reduce the ride comfort

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