Closed type compressor and its manufacturing method and refrigerator-freezer

• Main Authors: NAGAO TOMOHIRO, KONNO GEN, NOZAKI TSUTOMU, SEKIGUCHI KOICHI, CHIDA KOJI, BETCHAKU KENJI, ISHIYAMA AKIHIKO, SEKIYAMA NOBUYA, ONO TOSHIAKI
• Format: Patent
• Language: Chinese; English
• Published: 30.05.2012
• Subjects: BLASTING; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; REFRIGERATION OR COOLING; REFRIGERATORS; WEAPONS

A closed type compressor comprises a crank shaft 6 for transmitting rotating force of a motor; a piston 8 provided with a ball seat 8a having a spherical surface part 8a on a crank shaft side thereof; and a connecting rod 9 having a sphere part (11) with one end connected with the ball seat, an annular part (12) with the other end tabled in a crank shaft, and a rod part (10) connecting the annular part and the sphere part; and lubricating oil stored in a closed container, wherein the lubricating oil is provided through the crank shaft. The closed type compressor is provided with a first oil providing hole (19) on the crank shaft, a second oil providing hole (18) for providing the lubricating oil out of the first oil providing hole is arranged on the connecting rod, an oil storage box for temporarily storing the lubricating oil out of the second oil providing hole is arranged between the ball seat and the sphere. The inventive closed type compressor has favorable structure, high efficiency and good reliability