公开(公告)号：US06701722B1

公开(公告)日：2004-03-09

申请号：US10295961

申请日：2002-11-18

Applicant: Hyeong-Joon Seo ,  Gyoo-Ha Jung

Inventor： Hyeong-Joon Seo ,  Gyoo-Ha Jung

IPC: F25B4500

CPC classification number: F25B49/005 ,  F25B13/00 ,  F25B2313/005 ,  F25B2313/023 ,  F25B2500/222 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21151 ,  F25B2700/21152

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.

Abstract translation: 一种空气调节器和空调机中的制冷剂泄漏检测方法，其中空调器的整个制冷剂管道基于膨胀阀分成多个部分，这些部分逐一检查以快速检测制冷剂从 发现制冷剂管道断裂或松动区域的精确位置，导致制冷剂泄漏。 在通过制冷剂配管连接的压缩机，膨胀阀，室外热交换器和室内热交换器的空调机中检测制冷剂泄漏的方法中，将制冷剂管分成高压部 从压缩机的出口延伸到膨胀阀的入口，以及从膨胀阀的出口延伸到压缩机的入口的低压部分。 压力传感器设置在低压段内的制冷剂管上。 控制单元在制冷剂泄漏期间，通过比较压力传感器检测到的制冷剂压力的变化与制冷剂压力的预设变化，通过正常操作来检测低压部分中的制冷剂泄漏。 泄漏检测模式。