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US 12,467,456 B2Granted
Scroll compressor
AssigneeLG Electronics Inc.
InventorsJehyeon Moon, Byungkil Yoo
Life of this patent
Estimating the term…
Abstract
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.
Claims25
A scroll compressor, comprising:
- an orbiting scroll configured to perform an orbital motion;
- a fixed scroll coupled to the orbiting scroll to define a compression chamber;
- and
- a main frame that rotatably support the orbiting scroll at an opposite side of the fixed scroll with the orbiting scroll interposed therebetween, the main frame supporting the fixed scroll, wherein the fixed scroll is provided with a back pressure hole disposed between the compression chamber and a first back pressure chamber in which gas discharged from the compression chamber is received, wherein the back pressure hole is configured to communicate with the first back pressure chamber and the compression chamber on a basis of a predetermined pressure ratio of the compression chamber, wherein the orbiting scroll comprises an orbiting end plate having a disc shape with a predetermined width, the orbiting end plate supporting the fixed scroll, wherein at least one end plate groove is disposed at a side portion of one surface of the orbiting end plate along a circumferential direction, and wherein the at least one end plate groove is disposed at a position at which the at least one end plate groove is capable of communicating with the back pressure hole during an orbiting motion of the orbiting scroll, wherein the at least one end plate groove comprises a plurality of end plate grooves provided on the one surface of the orbiting end plate, wherein the plurality of end plate grooves is disposed at both sides with respect to a center of the orbiting end plate, wherein a distance from a first side of each of the plurality of end plate grooves to an outer portion of the compression chamber is greater than a distance from a second side of each of the plurality of end plate grooves to an outer circumference of the orbiting end plate, and wherein each of the plurality of end plate grooves is disposed adjacent to the outer circumference of the orbiting end plate and spaced apart therefrom by a sealing distance.
1 more element
A scroll compressor, comprising:
- an orbiting scroll configured to perform an orbital motion;
- a fixed scroll coupled to the orbiting scroll to define a compression chamber;
- a main frame configured to rotatably support the orbiting scroll at an opposite side of the fixed scroll with the orbiting scroll interposed therebetween, the main frame supporting the fixed scroll;
- and
- a casing in which the orbiting scroll, the fixed scroll, and the main frame are disposed, wherein the fixed scroll is provided with a back pressure hole disposed between the compression chamber and a first back pressure chamber in which gas discharged from the compression chamber is received, wherein the back pressure hole is configured to communicate with the first back pressure chamber and the compression chamber on a basis of a predetermined pressure ratio of the compression chamber, wherein the orbiting scroll comprises an orbiting end plate having a disc shape with a predetermined width, the orbiting end plate supporting the fixed scroll, wherein at least one end plate groove is disposed at a side portion of one surface of the orbiting end plate along a circumferential direction, wherein the at least one end plate groove is disposed at a position at which the at least one end plate groove is configured to communicate with the back pressure hole during an orbiting motion of the orbiting scroll, wherein the at least one end plate groove comprises a plurality of end plate grooves provided on the one surface of the orbiting end plate, wherein the plurality of end plate grooves is disposed at both sides with respect to a center of the orbiting end plate, wherein a distance from a first side of each of the plurality of end plate grooves to an outer portion of the compression chamber is greater than a distance from a second side of each of the plurality of end plate grooves to an outer circumference of the orbiting end plate, and wherein each of the plurality of end plate grooves is disposed adjacent to the outer circumference of the orbiting end plate and spaced apart therefrom by a sealing distance.
2 more elements
Dependencies are inferred from the claim text.