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A kind of air conditioner and defrosting method thereof

A technology of air conditioner and regulating valve, which is applied in the field of air conditioner and its defrosting, which can solve the problems of shortened service life of four-way valve and compressor, and achieve the effect of small resistance

Active Publication Date: 2021-12-14
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an air conditioner and its defrosting method to solve the technical problem in the prior art that the service life of the four-way valve and the compressor is significantly shortened due to the defrosting of the air conditioner

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  • A kind of air conditioner and defrosting method thereof
  • A kind of air conditioner and defrosting method thereof
  • A kind of air conditioner and defrosting method thereof

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Embodiment Construction

[0052] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

[0053] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "front", "rear", "first" and "second" are Based on the positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a Invention Limitations.

[0054] In the description of this application, the terms "installation", "connection", "connect...

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Abstract

The present application discloses an air conditioner and its defrosting method, comprising an indoor heat exchanger, one side of which is provided with a supply air temperature sensor; an outdoor heat exchanger, one side of which is provided with a liquid pipe temperature sensor; a compressor, comprising suction inlet and exhaust outlet; four-way valve, one end of which communicates with the exhaust outlet of the compressor, and the other end communicates with the indoor heat exchanger; the first regulating valve, one end of which communicates with the compressor The exhaust outlet of the compressor is connected, and the other end is connected with the outdoor heat exchanger; the amount of the gas refrigerant discharged from the compressor to the outdoor heat exchanger is controlled by adjusting the first regulating valve, and this Part of the heat released by the gas refrigerant is used to remove frost on the outdoor heat exchanger. Therefore, the technical problem in the prior art that the service life of the four-way valve and the compressor is obviously shortened due to the defrosting of the air conditioner is solved.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner and a defrosting method thereof. Background technique [0002] With the rapid growth of domestic rail transit vehicles in recent years, rail transit energy conservation and emission reduction has become the focus of social attention. The air conditioner of the rail transit vehicle is a moving part that needs to meet its special environmental requirements. As a key component of the environmental control of the rail transit vehicle, it is one of the important factors that affect the energy saving of the rail transit vehicle. Therefore, the application of frequency conversion technology and heat pump technology Rail transit vehicle air conditioners will be the mainstream products in the rail transit air conditioner industry. [0003] One of the problems faced by rail vehicle air conditioners using frequency conversion heat pump technology is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B13/00F25B49/02F24F11/41F24F11/65F24F11/64
CPCF25B13/00F25B49/022F24F11/41F24F11/65F24F11/64
Inventor 王宏宇吕艳宗韩冰
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST