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air conditioner

An air conditioner and air technology, applied in air conditioning systems, refrigerators, compressors, etc., can solve problems such as difficulty in operation and toxicity, and achieve the effect of excellent setup.

Active Publication Date: 2016-08-10
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since ammonia is flammable like the above-mentioned gases, it is also toxic, so it is more difficult to handle than HFC-32, etc.

Method used

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[0047] figure 1 It is a block diagram which shows the air conditioner which concerns on embodiment of this invention.

[0048] Such as figure 1 As shown, the indoor unit 100 of the air conditioner according to this embodiment includes an indoor blower 101 and a plate fin tube type (plate fin tube type) indoor heat exchanger 102 . A gas side pipe 112 and a liquid side pipe 113 are connected to the indoor heat exchanger 102 . The gas-side piping 112 and the liquid-side piping 113 are connected to an outdoor unit (not shown) installed outdoors through a piping hole 115 provided in the wall 114 . The outdoor unit includes a compressor (not shown), an outdoor heat exchanger (not shown), and the like.

[0049] In the air conditioner of this embodiment, HFO-1234yf is used as a refrigerant. HFO-1234yf is a gas that is attracting attention as a next-generation (next-generation) refrigerant that has a low global warming potential (GWP) and replaces R134a and R410A. HFO-1234yf is sl...

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Abstract

The present invention relates to an air conditioner that uses a flammable refrigerant, and an indoor unit (100) disposed on the indoor side is provided with at least two refrigerant detectors for detecting the refrigerant. Mechanisms (103, 105) and the exhaust fan (106) that exhausts the internal air of the indoor unit (100) to the outside. When the refrigerant detection mechanism (103) or (105) detects refrigerant, the exhaust fan (106) selectively sucks air with a high refrigerant concentration from the indoor unit (100) and exhausts it to the outside. According to this configuration, the leaked refrigerant can be efficiently exhausted with a small exhaust volume, and a compact air conditioner with excellent installation properties can be realized.

Description

technical field [0001] The present invention relates to an air conditioner which uses a refrigerant to form a refrigeration and heat pump cycle for cooling and heating, and in particular to detecting the leakage of the refrigerant in an air conditioner which uses a flammable refrigerant to form a cycle and to prevent the leakage of the indoor unit. Air exhaust technology. Background technique [0002] In recent years, global warming has become a serious problem, and the tendency to use a refrigerant having a low global warming potential (Global Warming Potential, hereinafter referred to as GWP) has become remarkable. Therefore, refrigerants such as natural refrigerants and hydrofluoroolefins having double bonds between carbons have attracted attention as alternative refrigerants to hydrofluorocarbons (hereinafter referred to as HFCs) conventionally used as refrigerants. [0003] Hydrofluoroolefins (hereinafter referred to as HFOs) are particularly attracting attention as al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/02F24F1/00F24F11/36
CPCF25B2400/12F25B2500/22F24F11/36F24F1/0041F24F1/00F25B1/00F25B49/02
Inventor 川边义和藤高章丸本一彦
Owner PANASONIC CORP
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