Air-conditioner

Abstract

The invention provides an air conditioning which easily stores a double muffler member in an outdoor unit while further effectively suppressing a refrigerant sound resulted from pulsation of a compressor. This air conditioner is a multi type air conditioner including the compressor 3, the outdoor unit 1 having an outdoor heat exchanger 6 and a four-way valve 5, and a plurality of indoor units 2a-2c connected to the outdoor unit. The outdoor unit 1 includes a plurality of service valves 15a-15c connected with the indoor units 2a-2c, respectively. The double muffler member X formed in a U-turn shape by a first muffler 21, a second muffler 22 and a connecting pipe 23 connecting both the mufflers is provided in an internal refrigerant pipe 24 between these service valves and the four-way valve 5, and the plurality of service valves 15a-15c are connected to one muffler 21 of the double muffler member, respectively.

Description

technical field [0001] The present invention relates to a multi-type air conditioner composed of an outdoor unit having a compressor, a four-way valve, an outdoor heat exchanger, etc., and a plurality of indoor units connected to the outdoor unit through an auxiliary valve, and particularly relates to an air conditioner capable of effectively suppressing pressure caused by compression. An air-conditioning device that prevents the refrigerant sound caused by the pulsation of the machine. Background technique [0002] Multi-model air conditioning devices are known now. This air conditioner includes an outdoor unit and a plurality of indoor units, and inter-unit piping extending from each indoor unit is connected via a plurality of auxiliary valves disposed on one side of the outdoor unit (see Patent Document 1). [0003] [Patent Document 1] Japanese Unexamined Patent Publication No. 2003-254563. [0004] In the multi-model air-conditioning apparatus disclosed in the above-me...

AI Technical Summary

Problems solved by technology

Therefore, during the heating operation of the air conditioner, in the indoor unit during the heating operation, the refrigerant sound generated by the pulsation of the refrigerant caused by the compressor is covered by the operation sound of the blower fan. Since the blower fan is stopped and there is no operating sound, the refrigerant sound caused by the pulsation of the compressor transmitted to the indoor heat exchanger through the piping between the units may leak from the indoor unit that is not operating to the room.

[0006] In order to solve the above-mentioned problems, in the case of only increasing the capacity of the muffler 101, it cannot be accommodated in the space of the existing outdoor unit, so a new problem arises that the outdoor unit body must be enlarged.

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