Reversing-free heat pump air conditioning system and vehicle

Abstract

The invention discloses a reversing-free heat pump air conditioning system and a vehicle. The system comprises a compressor, an air conditioning box and a heat exchanger for cooling a battery, the compressor, the air conditioning box and the heat exchanger for cooling the battery are connected through a plurality of air conditioning pipes, and the compressor and the heat exchanger for cooling the battery are located outside the air conditioning box. The air conditioning pipe is used for allowing a refrigerant to circulate in the heat pump air conditioning system without reversing; the air conditioning box comprises at least one heating heat exchanger and at least one refrigerating heat exchanger, an inlet of the heating heat exchanger is connected with an outlet of the compressor, and the refrigerating heat exchanger and the heat exchanger for battery cooling are arranged in parallel to form a refrigerating set. An inlet of the refrigeration heat exchanger and an inlet of the heat exchanger for cooling the battery are both connected with an outlet of the heating heat exchanger, and an outlet of the refrigeration heat exchanger and an outlet of the heat exchanger for cooling the battery are both connected with a circulating inlet of the compressor. The system is simple in structure, refrigerant reversing flow is not needed when working modes are switched, and the system operation stability is high.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a heat pump air conditioning system and a vehicle without reversing. Background technique [0002] With the gradual popularization of new energy vehicles, the mileage directly affects the use and purchase of new energy vehicles by users. Due to the superiority of heat pump air conditioners in improving the mileage, the demand for heat pump air conditioners for new energy vehicles, especially pure electric vehicles, is also increasing. . However, in the prior art, the working principle of most air-conditioning heat pumps is to use the way of refrigerant reversing to realize the heat absorption and heat release during the refrigerant cycle, so as to achieve the purpose of cooling or heating; among them, the cooling mode The high-temperature and high-pressure gas refrigerant is discharged into the outdoor condenser through the compressor to release heat to the outside, and...

AI Technical Summary

Problems solved by technology

This refrigerant reversing method needs to install multiple electronic valves or reversing valves in the system circuit, which has low reliability and high difficulty in system control development.

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