Unit for refrigeration cycle device, refrigeration cycle device, and electric apparatus

Abstract

A unit for a refrigeration cycle device includes a housing that internally includes a sound field space surrounded by surfaces each reflecting sound waves, an expansion device disposed in the sound field space and configured to adjust a flow rate of refrigerant, a refrigerant pipe disposed in the sound field space and connected to the expansion device, and a sound absorber disposed on at least a part of the surfaces defining the sound field space.

1 . A unit for a refrigeration cycle device, the unit comprising:
 a housing that has a plurality of surfaces and internally includes a sound field space surrounded by the plurality of surfaces, the plurality of surfaces each reflecting sound waves;   an expansion device disposed in the sound field space and configured to adjust a flow rate of refrigerant;   a refrigerant pipe disposed in the sound field space and connected to the expansion device; and   a sound absorber disposed on, among the plurality of surfaces, one or both of two surfaces that face each other in the sound field space.   
     
     
         2 . The unit for a refrigeration cycle device of  claim 1 , wherein the expansion device is an electronic expansion valve. 
     
     
         3 . The unit for a refrigeration cycle device of  claim 1 , wherein the sound absorber is made of pulp fibers including air chambers. 
     
     
         4 . The unit for a refrigeration cycle device of  claim 1 , wherein the sound absorber is further provided to a bent part of the refrigerant pipe and an intermediate component provided to the refrigerant pipe. 
     
     
         5 . The unit for a refrigeration cycle device of  claim 1 , wherein a sound insulator containing a dielectric material is stacked on the sound absorber. 
     
     
         6 . A refrigeration cycle device, comprising
 the unit for a refrigeration cycle device of  claim 1 , as at least one of a heat source side unit and a load side unit.   
     
     
         7 . An electric apparatus, comprising
 the refrigeration cycle device of  claim 6 .