Lg Electronics Inc.

Jehyeon Moon

Byungkil Yoo

Minho Lee

Kyungho Lee

A scroll compressor includes an orbiting scroll that is coupled to a rotating shaft in a casing and includes an orbiting end plate portion coupled to the rotating shaft and an orbiting wrap that has a spiral shape protruding from one surface of the orbiting end plate portion, a fixed scroll including a fixed wrap that is engaged with the orbiting wrap defines a compression chamber with the orbiting wrap therebetween, and a main frame that rotatably supports the orbiting scroll and defines a back pressure chamber with the orbiting scroll. The fixed scroll defines a fixed back pressure hole having a first end configured to communicate with the first back pressure chamber and a second end is located between outer and inner circumferences of the orbiting wrap. The orbiting wrap is configured to cover at least a portion of the fixed back pressure hole during the orbital motion.

Scroll compressor

A scroll compressor including an orbiting scroll that performs an orbiting motion; a fixed scroll coupled to the orbiting scroll so as to form a compression chamber; and a main frame that rotatably supports the orbiting scroll at an opposite side of the fixed scroll with the orbiting scroll interposed therebetween, and supportably connected to the fixed scroll. The fixed scroll is provided with a back pressure hole formed between a first back pressure chamber in which gas discharged from the compression chamber is received, and the compression chamber. The back pressure hole may communicate with the first back pressure chamber and the compression chamber on the basis of a predetermined pressure ratio of the compression chamber.

A scroll compressor includes a fixed scroll, an orbiting scroll, a rotating shaft, an Oldham ring, and a plurality of first keys. The orbiting scroll is configured to engage the fixed scroll. The rotating shaft is eccentrically coupled to the orbiting scroll and configured to operate the orbiting scroll. The Oldham ring has a ring body that defines a plurality of slots. The plurality of first keys are coupled to the orbiting scroll and inserted to the plurality of slots, respectively. The plurality of first keys are configured to slide at the plurality of slots in a radial direction and include a material different from a material of the Oldham ring.

Growing community of inventors

Seoul, South Korea

Jehyeon Moon