Automobile air-conditioning system

An automotive air-conditioning system and a technology in the cabin, which is applied in the field of automotive air-conditioning systems, can solve the problems that are not mentioned, do not have the working mode of the automotive heat-pump air-conditioning system, and the efficiency of the heat-pump air-conditioning system is low. Effects that meet comfort requirements

Active Publication Date: 2013-08-21
HANGZHOU SANHUA RES INST CO LTD
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AI Technical Summary

Problems solved by technology

The system does not have a complete working mode of the automotive heat pump air-conditioning system, there is no dehumidification and deicing mode, such as how to solve the problem when the window is fogged, and the system does not mention that in the heating mode, if the external condenser freezes , the system cannot work, how to solve it; in addition, when the ambient temperature is -5°C and below, the efficiency of the heat pump air conditioning system is very low, and even cannot work normally

Method used

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  • Automobile air-conditioning system
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Embodiment approach

[0051] Introduce the second specific embodiment of the present invention below, Figure 5 It is a schematic diagram of the pipeline connection of the second specific embodiment of the present invention. This embodiment is an improvement on the above first embodiment. Specifically, the compressor 1 in this embodiment is a compressor with a two-stage compression function. And in the heating mode, part of the refrigerant flowing through the first part 51 of the intermediate heat exchanger 5 directly flows into the second stage of the compressor 1 through the control valve 10 for compression, instead of all passing through the vapor-liquid Separator 9 goes to compressor 1 again, and the remaining part goes to compressor 1 again through gas-liquid separator 9, and setting like this can reduce the power consumption of compressor, improve efficiency, save electric energy, thereby improve mileage; Simultaneously, also The working range of the heat pump system is increased, thereby fu...

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Abstract

An automobile air-conditioning system comprises a compressor, a vapor liquid separator, a first heat exchanger, a second heat exchanger, a third heat exchanger and an intermediate heat exchanger. The third heat exchanger selectively exchanges heat with an external environment, the intermediate heat exchanger is provided with a first portion and a second portion which can exchange heat, and a throttling element is arranged in a pipeline passing through the second portion of the intermediate heat exchanger. When the automobile air-conditioning system is in at least one of a refrigerating mode and a heating mode, low-temperature and low-pressure refrigerants before returning to the compressor pass through the first portion of the intermediate heat exchanger, refrigerants before throttling pass through the second portion of the intermediate heat exchanger, the low-temperature and low-pressure refrigerants before returning to the compressor exchange heat with the refrigerants before throttling in the intermediate heat exchanger, the temperature of the refrigerants before throttling is further reduced, and the temperature of the low-temperature and low-pressure refrigerants before returning to the compressor is increased, so that the operating efficiency of a heat pump system is improved.

Description

technical field [0001] The invention relates to the technical field of automobile air conditioning, in particular to an electric automobile air conditioning system or a hybrid electric automobile air conditioning system. Background technique [0002] With the development of low-carbon economy, more stringent requirements are put forward for energy saving and emission reduction. Electric vehicles will become one of the aspects of future automobile development due to their energy-saving and environmental protection features. However, since electric vehicles use batteries as a power source, their air-conditioning systems are also different from the original automotive air-conditioning systems. [0003] Traditional internal combustion engine vehicles can use the waste heat of the internal combustion engine and the heat of the engine exhaust to heat the cabin, while the power of electric vehicles mainly comes from the motor, which lacks the heat of the engine to be used, making i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B13/00F25B41/06F25B41/04B60H1/00B60H3/00F25B41/20F25B41/31
Inventor 不公告发明人
Owner HANGZHOU SANHUA RES INST CO LTD
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