Abstract:
A sealed compressor of the present invention comprises an electric component (111); a compression component (113) actuated by the electric component (111); and a sealed container (101) which accommodates therein the electric component (111) and the compression component (113), and stores lubricating oil therein; wherein the compression component (113) includes a crankshaft (135) including a main shaft (137) and an eccentric shaft (139); a cylinder block (117) including a bearing unit (123) supporting the main shaft (137) such that the main shaft is rotatable, and a cylinder (121) defining a compression chamber (119); and a suction muffler (131) through which a refrigerant gas (115) flows from an interior of the sealed container (101) to an interior of the compression chamber (119); a separating wall (165) is provided between the suction muffler (131) and the electric component (111); a first space (159) is formed between the suction muffler (131) and the separating wall (165); and a second space (163) is formed between the electric component (111) and the separating wall (165).
Abstract:
In a sealed compressor (100) of the present invention, a suction muffler (160) includes a communication pipe (162) coupled to a suction hole (151a) of a valve plate (151). The communication pipe (162) extends upward from the suction muffler (160) toward the other end of a cylinder (133), and is provided at an upper end thereof with a communication pipe exit section (162a) which is in communication with the suction hole (151a). The cylinder head (152) is formed on a lower portion with a recess (152d) accommodating the communication pipe exit section (162a) therein. A gas inflow space (152b) in the interior of the sealed container is formed between the communication pipe exit section (162) and a recess (152d). The gas inflow space (152b) in the interior of the sealed container is a space which is in communication with a sealed space inside of the sealed container (101).
Abstract:
A hermetic compressor according to the present invention includes: an electric element (103); a compression element (105) driven by the electric element (103); and a sealed container (101) accommodating the electric element (103) and the compression element (105), the sealed container (101) storing an oil (113). The compression element (105) includes: a crank shaft (119) including a main shaft (129), an eccentric shaft (127), and an oil supply mechanism (131); a cylinder block (121) including a main bearing (137) and a cylinder (135), the main bearing (137) pivotally supporting the main shaft (129) of the crank shaft (119), the cylinder (135) forming a compression chamber (133); a piston (123) configured to move inside the cylinder (135) in a reciprocating manner; and a connector (125) connecting the eccentric shaft (127) and the piston (123). A first oil groove (139A) extending in a circumferential direction of the cylinder (135) is provided on at least part of an upper outer peripheral surface of the cylinder (135).