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Heat pump and compressor discharge pressure controlling apparatus for the same

A discharge pressure and compressor technology, applied in heat pumps, refrigerators, refrigeration components, etc., can solve the problems of compressor damage, heat pump performance reduction, compressor discharge pressure and high temperature, etc.

Inactive Publication Date: 2005-11-02
DAEWOO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the compression efficiency of the compressor is reduced which reduces the performance of the heat pump
[0009] In traditional heat pumps, when overloaded, the compressor discharge pressure and temperature are too high, causing the compressor to be damaged

Method used

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  • Heat pump and compressor discharge pressure controlling apparatus for the same
  • Heat pump and compressor discharge pressure controlling apparatus for the same
  • Heat pump and compressor discharge pressure controlling apparatus for the same

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Experimental program
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Embodiment Construction

[0029] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] figure 2 Shown is a schematic structural view of a heat pump according to a first preferred embodiment of the present invention.

[0031] Such as figure 2 As shown, the heat pump according to the first preferred embodiment of the present invention includes a compressor 10, an indoor heat exchanger 20, an expansion valve 30, an outdoor heat exchanger 40, a pressure accumulator 50, a four-way valve 60 and a plurality of connecting pipes.

[0032] The four-way valve 60 is connected to the outlet of the compressor 10 via the first connecting pipe 1 . The four-way valve 60 is also connected to the indoor heat exchanger 20 via the second connecting pipe 2 . The indoor heat exchanger 20 is connected to the outdoor heat exchanger 40 via the third connection pipe 3 .

[0033]An expansion valve 30 for controlling the flow of refrigerant and a ...

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PUM

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Abstract

Disclosed herein is a heat pump. The heat pump comprises a compressor, indoor and outdoor heat exchangers for condensing or evaporating refrigerant compressed by the compressor according to cooling or heating operation mode, a four-way valve for guiding the flow of the compressed refrigerant to the indoor heat exchanger or the outdoor heat exchanger according to the operation mode, an expansion valve for selectively decreasing the pressure of liquid refrigerant according to the operation mode, a check valve selectively opened or closed according to the operation mode for guiding the flow of the liquid refrigerant to the expansion valve, an accumulator for preventing the liquid refrigerant from entering into the inlet of the compressor, connection pipes, and a heat exchange part for performing heat exchange between the connection pipe connected to the inlet of the accumulator and the connection pipe connected to the indoor heat exchanger.

Description

technical field [0001] The present invention relates to heat pumps and in particular to such a heat pump having an accumulator inlet side conduit extending through the discharge pipe of the compressor to prevent compression due to the flow of low temperature, low pressure liquid refrigerant into the compressor via an outdoor heat exchanger The heat pump is damaged, thus preventing liquid refrigerant from entering the accumulator and the compressor. When the outdoor air temperature is low or overloaded, the heat pump maintains the compressor discharge pressure at a predetermined pressure level, thereby stabilizing the compressor suction pressure. Moreover, When the outdoor temperature drops in winter and the outdoor heat exchanger is covered with frost and the evaporation process cannot be performed, the heat pump can control the liquid compression phenomenon, thereby preventing the compressor from being damaged. [0002] In addition, the present invention relates to the compre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/00F25B30/02
CPCB29C53/58B29C53/8016B29C70/22B29D23/001F16L9/02
Inventor 金英洙
Owner DAEWOO ELECTRONICS CO LTD