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Air conditioner

An air conditioner, heating and cooling technology, applied in air conditioning systems, refrigerators, refrigeration components, etc., can solve the problems of reduced exhaust temperature, long defrosting time, poor defrosting effect, etc. The effect of increased speed and shortened defrost time

Inactive Publication Date: 2010-05-12
HISENSE HOME APPLIANCES GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reduction of exhaust temperature leads to lower condensation temperature, which not only makes the defrosting effect worse, but also the defrosting time will be longer

Method used

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  • Air conditioner
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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] The present invention includes: an outdoor unit heat exchanger 3 , a capillary tube 2 , an indoor unit heat exchanger 1 , a compressor 7 , a compressor liquid storage tank 6 connected with the compressor, and a four-way valve 4 connected sequentially through connecting pipes. The input end of the outdoor unit heat exchanger 3 , the output end of the indoor unit heat exchanger 1 , the input end of the compressor liquid storage tank 6 and the output end of the compressor 7 are respectively connected to the four valve ports of the four-way valve 4 .

[0016] In addition, the connecting pipe between the outdoor unit heat exchanger 3 and the capillary 2 is also connected to the compressor liquid storage tank 6 through the interconnected second capillary 8 and the solenoid valve 5 . And the length of the second capillary 8 is shorter than the length of the capillary 2...

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Abstract

The invention relates to an air conditioner, in particular to the improvement on a defrosting function of the air conditioner. The air conditioner comprises an outdoor unit heat exchanger, a throttling device and an indoor unit heat exchanger which are orderly connected through connecting pipes, a compressor, a compressor liquid storage tank connected with the compressor, and a four-way valve, wherein an inlet pipe of the outdoor unit heat exchanger, an output end of the indoor unit heat exchanger, an inlet of the compressor liquid storage tank and an exhaust pipe of the compressor are connected to four valve ports of the four-way valve respectively. In addition, the connecting pipe between the outdoor unit heat exchanger and the throttling device is also connected with the compressor liquid storage tank through an electromagnetic valve, and the electromagnetic valve is only connected during the defrosting of the air conditioner. A refrigerant with relatively higher general temperature does not enter the indoor unit heat exchanger, but directly returns to the compressor for air return through the electromagnetic valve, which makes the exhaust temperature of the compressor remarkably improved further to ensure that the condensing temperature is remarkably improved, the defrosting speed is remarkably improved and the defrosting time is greatly shortened.

Description

technical field [0001] The invention relates to a heating and cooling air conditioner, in particular to the improvement of the defrosting function of the heating and cooling air conditioner. Background technique [0002] When the heating and cooling air conditioner is in heating operation when the outdoor temperature is low, because the temperature of the outdoor heat exchange air is below zero, frosting will occur. Especially when the outdoor ambient temperature is around 0°C and the air humidity is high, the outdoor unit is prone to frost. Frosting on the outdoor unit greatly reduces the heat transfer performance of the outdoor unit, reducing the heat generated by the indoor mechanism and the heating efficiency. Therefore, after the frost layer of the outdoor unit has accumulated to a certain extent, it needs to be defrosted. [0003] In the defrosting process of the existing heating and cooling air conditioners, the heat exchanger of the outdoor unit is used as a conden...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/00F25B41/04F25B41/06F25B47/02
Inventor 冯利峰李华罗晖
Owner HISENSE HOME APPLIANCES GRP CO LTD
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