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Air conditioner and method for detecting refrigrant leakage

A technology for refrigerants and air conditioners, used in refrigerators, air conditioning systems, refrigeration components, etc., can solve problems such as cracking of refrigerant pipes or difficulty in loose positions

Inactive Publication Date: 2003-11-12
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the refrigerant leaks, it is more difficult to find the exact location of the crack or looseness of the refrigerant pipe

Method used

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  • Air conditioner and method for detecting refrigrant leakage
  • Air conditioner and method for detecting refrigrant leakage
  • Air conditioner and method for detecting refrigrant leakage

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Embodiment Construction

[0024] Preferred embodiments of the present invention will now be described in detail with reference to examples illustrated in the accompanying drawings, wherein like numerals refer to like elements throughout. The embodiments are described below to explain the present invention by referring to the figures.

[0025] Figure 2A is a block diagram of the structure of the air conditioner according to an embodiment of the present invention, wherein the arrows indicate the flow direction of the refrigerant in the cooling mode of the air conditioner.

[0026] like Figure 2A As shown, the air conditioner includes an indoor unit 202 and an outdoor unit 204, and an indoor heat exchanger 216 is installed in the indoor unit 202. The indoor heat exchanger 216 is a device for exchanging heat between refrigerant and indoor air. The indoor unit 202 is also provided with an indoor expansion valve 214 that regulates the pressure of the refrigerant flowing to the indoor heat exchanger 216 ...

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Abstract

An air conditioner and method of detecting a refrigerant leakage in the air conditioner in which the entire refrigerant pipe of the air conditioner is sectioned based on expansion valves into a plurality of sections, the sections are checked one by one to quickly detect a refrigerant leakage from the sections and an exact position of a broken or loosened area of the refrigerant pipe causing such a refrigerant leakage is found. In the method of detecting a refrigerant leakage in the air conditioner, comprising a compressor, an expansion valve, an outdoor heat exchanger, and an indoor heat exchanger connected to one another by a refrigerant pipe, the refrigerant pipe is sectioned into a high pressure section extending from the outlet port of the compressor to the inlet port of the expansion valve, and a low pressure section extending from the outlet port of the expansion valve to the inlet port of the compressor. A pressure sensor is provided on the refrigerant pipe within the low pressure section. A control unit detects a refrigerant leakage in the low pressure section by comparing a variation in refrigerant pressure sensed by the pressure sensor with a preset variation in the refrigerant pressure in accordance with a normal operation without the refrigerant pipe having a refrigerant leakage, during a refrigerant leakage detection mode.

Description

technical field [0001] The present invention mainly relates to an air conditioner, and more particularly to a multi-unit type air conditioner having a plurality of indoor units for heating or cooling indoor air, and a method for detecting refrigerant leakage of the air conditioner. Background technique [0002] An air conditioner is a machine that controls indoor temperature by exchanging heat between a refrigerant and indoor and outdoor air. figure 1 It is a schematic diagram of the structure and refrigerant flow of a traditional air conditioner, where the arrows indicate the flow of refrigerant when the air conditioner is cooling. like figure 1 As shown, the conventional air conditioner includes an indoor unit 102 and an outdoor unit 104 , and the indoor unit 102 is equipped with an indoor heat exchanger 116 . The indoor heat exchanger 116 is a device that exchanges heat between refrigerant and indoor air. The indoor unit 102 is also provided with an indoor expansion va...

Claims

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Application Information

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IPC IPC(8): F24F11/00F25B13/00F25B49/00
CPCF25B13/00F25B2313/005F25B2313/023F25B2700/21151F25B2700/21152F25B2700/1933F25B2700/1931F25B49/005F25B2500/222
Inventor 徐炯濬郑圭夏
Owner SAMSUNG ELECTRONICS CO LTD
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