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US 2022/0136501 A1Published application
Scroll compressor
AssigneeLG Electronics Inc.
InventorsJuhwan YUN, Nara HAN, Mose KANG, Jihoon PARK
Life of this patent
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Abstract
A scroll compressor is provided that may include a casing, a drive motor, an orbiting scroll, a non-orbiting scroll, and a floating plate provided with a cover portion to cover an area between an outer wall portion and an inner wall portion of the non-orbiting scroll so as to form a back pressure chamber with the non-orbiting scroll, and a valve accommodating portion that extends from the cover portion so as to accommodate a discharge valve configured to open and close a discharge port. Accordingly, structure for forming a back pressure chamber is simplified to thereby reduce the number of components and man-hours required for assembly.
Claims24
A scroll compressor, comprising:
- a casing having a sealed inner space;
- a drive motor installed in the inner space of the casing;
- an orbiting scroll coupled to the drive motor to perform an orbiting motion;
- a non-orbiting scroll including an end plate provided at a first side of the orbiting scroll and having a first surface defining a compression chamber by being engaged with the orbiting scroll and a second surface end having an outer wall portion and an inner wall portion that extend in an axial direction with a predetermined gap therebetween in a radial direction, the inner wall portion provided therein with a discharge port configured to discharge refrigerant compressed in the compression chamber into the inner space of the casing;
- and
- a floating plate configured to cover an area between the outer wall portion and the inner wall portion of the non-orbiting scroll so as to form a back pressure chamber with the non-orbiting scroll, wherein the floating plate comprises:
- an upper cover portion having an annular shape to form an upper surface of the back pressure chamber;
- an outer cover portion that extends from an outer circumference of the upper cover portion toward the non-orbiting scroll in the axial direction so as to be slidably fitted to the outer wall portion;
- an inner cover member that extends from an inner circumference of the upper cover portion toward the non-orbiting scroll in the axial direction so as to be slidably fitted to the inner wall portion;
- and
- a valve accommodating portion that axially extends from an inner circumferential side of the inner cover portion so as to accommodate a discharge valve configured to open and close the discharge port.
8 more elements
A scroll compressor, comprising:
- a casing having a sealed inner space;
- a drive motor installed in the inner space of the casing;
- an orbiting scroll coupled to the drive motor to perform an orbiting motion;
- a non-orbiting scroll including an end plate provided at a first side of the orbiting scroll and having a first surface defining a compression chamber by being engaged with the orbiting scroll and a second surface end having an outer wall portion and an inner wall portion that extend in an axial direction with a predetermined gap therebetween in a radial direction, the inner wall portion provided therein with a discharge port configured to discharge refrigerant compressed in the compression chamber into the inner space of the casing;
- and
- a floating plate configured to cover an area between the outer wall portion and the inner wall portion of the non-orbiting scroll so as to form a back pressure chamber with the non-orbiting scroll, wherein the floating plate comprises:
- an upper cover portion having an annular shape to form an upper surface of the back pressure chamber;
- an outer cover portion that extends from an outer circumference of the upper cover portion toward the non-orbiting scroll in the axial direction so as to be slidably fitted to the outer wall portion;
- an inner cover member that provides a seal between a circumferential surface of the inner cover portion and a circumferential surface of the inner wall portion facing each other;
- an outer cover member that provides a seal between a circumferential surface of the outer cover portion and a circumferential surface of the outer wall portion facing each other;
- and
- a valve accommodating portion that axially extends from an inner circumferential side of the inner cover portion so as to accommodate a discharge valve configured to open and close the discharge port.
9 more elements
A scroll compressor, comprising:
- a casing having a sealed inner space;
- a drive motor installed in the inner space of the casing;
- an orbiting scroll coupled to the drive motor to perform an orbiting motion;
- a non-orbiting scroll including an end plate provided at a first side of the orbiting scroll and having a first surface defining a compression chamber by being engaged with the orbiting scroll and a second surface end having an outer wall portion and an inner wall portion that extend in an axial direction with a predetermined gap therebetween in a radial direction, the inner wall portion provided therein with a discharge port configured to discharge refrigerant compressed in the compression chamber into the inner space of the casing;
- and
- a floating plate configured to cover an area between the outer wall portion and the inner wall portion of the non-orbiting scroll so as to form a back pressure chamber with the non-orbiting scroll, wherein the floating plate comprises:
- an upper cover portion having an annular shape to form an upper surface of the back pressure chamber;
- an outer cover portion that extends from an outer circumference of the upper cover portion toward the non-orbiting scroll in the axial direction so as to be slidably fitted to the outer wall portion;
- a first elastic sealing provided between a circumferential surface of the inner cover portion and a circumferential surface of the inner wall portion facing each other;
- a second elastic sealing provided between a circumferential surface of the outer cover portion and a circumferential surface of the outer wall portion facing each other;
- and
- a valve accommodating portion that axially extends from an inner circumferential side of the inner cover portion so as to accommodate a discharge valve configured to open and close the discharge port.
9 more elements
Dependencies are inferred from the claim text.