Air conditioner comprising heat exchanger and means for switching cooling cycle

A technology of heat exchange device and air conditioner, applied in irreversible cycle compressors, reversible cycle compressors, heat exchange equipment, etc., can solve problems such as low thermal conductivity, achieve good performance, prevent temperature rise, ensure performance effect

Inactive Publication Date: 2005-03-09
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0036] Unfortunately, this type of heat exchanger also has problems such as low thermal conductivity

Method used

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  • Air conditioner comprising heat exchanger and means for switching cooling cycle
  • Air conditioner comprising heat exchanger and means for switching cooling cycle
  • Air conditioner comprising heat exchanger and means for switching cooling cycle

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Embodiment Construction

[0073] The following detailed description will be given with reference to the accompanying drawings for an air conditioner including a heat exchanger and a device for switching refrigerating cycles according to a preferred embodiment of the present invention.

[0074] Figure 10 is a schematic diagram of a heat exchanger of the present invention, wherein a check valve is used as a switching unit of a refrigeration cycle; Figure 11 yes Figure 10 The schematic diagram of the heat exchanger of the present invention in the present invention, wherein has used a four-way valve instead of one-way valve as the switching unit of refrigerating cycle; And Figure 12 There is no one-way valve or four-way valve installed Figure 10 and 11 A schematic diagram of the heat exchanger.

[0075] refer to Figure 10 , 11 and 12, the air conditioner / heater includes an indoor heat exchanger, an outdoor heat exchanger, a four-way valve, and a compressor for compressing refrigerant. More spe...

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PUM

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Abstract

The present invention relates to an air conditioner capable of performing heat exchange of refrigerant and cooling and heating operations. According to the invention, a dual-tube heat exchanger is disposed at the entrance of a compressor and a means for switching a cooling cycle is installed between an outdoor heat exchanger including a condenser and an indoor heat exchanger including an evaporator so that in an air conditioning mode, heat change between mid-temperature, high-pressure liquid refrigerant at the exit of the condenser and low-temperature, low-pressure superheated refrigerant at the exit of the evaporator is performed more effectively and as a result of this, super heating of the liquid refrigerant at the exit of the condenser is increased, refrigerant flow characteristics of an expansion unit are improved, and enthalpy at the entrance side of the evaporator is reduced, causing a greater enthalpy difference at the entrance and exit of the evaporator and improving air conditioning capacity overall. Moreover, the heat exchanger of the present invention has a dual tube structure and uses a counter flow or parallel flow for performing heat exchange.

Description

technical field [0001] The present invention generally relates to an air conditioner capable of performing heat exchange of refrigerant and cooling and heating operations. More specifically, the present invention relates to an air conditioner in which a double-pipe heat exchanger is provided at an inlet of a compressor, and between an outdoor heat exchanger including a condenser and an indoor heat exchanger including an evaporator A device for switching the refrigeration cycle is installed between them, so that in the air-conditioning mode, the heat exchange between the medium-temperature and high-pressure liquid refrigerant at the outlet of the condenser and the low-temperature and low-pressure superheated refrigerant at the outlet of the evaporator is carried out smoothly. more efficient, and as a result of this efficient heat exchange, the superheating of the liquid refrigerant at the outlet of the condenser is increased, the flow characteristics of the refrigerant of the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/40F25B1/00F25B13/00F25B40/00F28D7/10
CPCF25B40/00F25B13/00F28F13/06F28F1/40F28D7/106
Inventor 文栋洙陈深元洪起洙李晶雨郑寅和
Owner LG ELECTRONICS INC
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