Scroll compressor

Abstract

A scroll compressor includes a compressor shell; a frame ( 4 ) installed in the compressor shell; a first scroll ( 5 ) located in the compressor shell; and a second scroll ( 6 ) located in the compressor shell and being co-rotatable with the first scroll ( 5 ), to define a compression chamber ( 56 ) between the first scroll ( 5 ) and the second scroll ( 6 ), the second scroll ( 6 ) having a hub ( 41 ) that extends downward from a lower surface thereof; a transformer flange ( 8 ) supported on the frame and supporting the first scroll ( 5 ) and the second scroll ( 6 ), the transformer flange ( 8 ) being connected to the first scroll ( 5 ); an actuating mechanism ( 7 ) installed in the compressor shell and connected to the transformer flange ( 8 ), for driving the transformer flange ( 8 ) to rotate, so that the first scroll ( 5 ) and the second scroll ( 6 ) are driven to co-rotate; a crankshaft ( 9 ) assembly located in the transformer flange ( 8 ) and including an oil screw ( 10 ), an upper end ( 101 ) of the oil screw ( 10 ) being fitted with a hub ( 61 ) of the second scroll ( 6 ), a lower end of the oil screw ( 10 ) extending into an oil sump ( 31 ); and a plurality of supports ( 11, 12, 13, 14, 15, 16 ), such as bearings or bushings or gaskets, located on the same side of the compression chamber ( 56 ).

1 . A scroll compressor, comprising:
 a compressor shell;   a frame installed in the compressor shell;   a scroll assembly comprising:   a first scroll located in the compressor shell; and   a second scroll located in the compressor shell and being co-rotatable with the first scroll, to define a compression chamber between the first scroll and the second scroll;   a flange rotatably supported on the frame and supporting the first scroll and the second scroll, the flange being connected to the first scroll; and   an actuating mechanism installed in the compressor shell and connected to the flange for driving the flange to rotate, so that the first scroll drives the second scroll to co-rotate, wherein the actuating mechanism comprises an axial-flux motor.   
     
     
         2 . The scroll compressor according to  claim 1 , wherein the axial-flux motor is a disc motor. 
     
     
         3 . The scroll compressor according to  claim 1 , wherein the axial-flux motor comprises a stator fixed to the frame, and a rotor connected to the flange for driving the flange to rotate. 
     
     
         4 . The scroll compressor according to  claim 3 , wherein the rotor is located below the stator. 
     
     
         5 . The scroll compressor according to  claim 4 , wherein the axial-flux motor has a rotational speed ranging from 0 rpm to 40000 rpm. 
     
     
         6 . The scroll compressor according to  claim 4 , wherein the rotor and the flange are connected by interference fit, and the stator and the frame are connected by a screw. 
     
     
         7 . The scroll compressor according to  claim 4 , wherein the stator comprises a stator yoke, a stator tooth, a stator supporting ring and windings wound on the stator tooth. 
     
     
         8 . The scroll compressor according to  claim 7 , wherein the stator further comprises a winding frame mounted around the stator tooth, and the windings are wound on the winding frames. 
     
     
         9 . The scroll compressor according to  claim 7 , wherein the stator yoke is fixedly connected to the stator supporting ring, and the stator supporting ring is connected to the compressor shell by interference fit. 
     
     
         10 . The scroll compressor according to  claim 7 , wherein the stator is accommodated in the frame, and threaded holes are provided on an outer edge of the frame and the stator supporting ring so that the frame and the stator supporting ring are fixedly connected by a screw. 
     
     
         11 . The scroll compressor according to  claim 3 , wherein one or more heat dissipation ribs are provided on an outer surface of the stator; and
 the heat dissipation ribs are components made separately from the stator, or integrally formed with the stator.   
     
     
         12 . The scroll compressor according to  claim 4 , wherein the rotor comprises a permanent magnet, a rotor yoke and a rotor hub, wherein the permanent magnet is held and fixed by the rotor yoke, and the rotor hub and the flange are connected by interference fit. 
     
     
         13 . A scroll compressor, comprising:
 a compressor shell;   a frame installed in the compressor shell;   a scroll assembly comprising:
 a first scroll located in the compressor shell; and 
 a second scroll located in the compressor shell and being co-rotatable with the first scroll, to define a compression chamber between the first scroll and the second scroll; 
   a flange rotatably supported on the frame and supporting the first scroll and the second scroll, the flange being connected to the first scroll; and   an actuating mechanism installed in the compressor shell and connected to the flange for driving the flange to rotate, so that the first scroll drives the second scroll to co-rotate, wherein the actuating mechanism comprises a radial-flux motor.   
     
     
         14 . The scroll compressor according to  claim 13 , wherein the radial-flux motor has a rotational speed ranging from 0 rpm to 40000 rpm. 
     
     
         15 . The scroll compressor according to  claim 13 , wherein the radial-flux motor comprises a stator fixed to the frame, and a rotor provided radially inside the stator and connected to the flange for driving the flange to rotate. 
     
     
         16 . The scroll compressor according to  claim 15 , wherein the rotor and the flange are connected by interference fit, and the stator is fixed to the frame. 
     
     
         17 . The scroll compressor according to  claim 15 , wherein the stator comprises a stator supporting ring, and a plurality of stator teeth each having a corresponding winding wound around it. 
     
     
         18 . The scroll compressor according to  claim 2 , wherein the axial-flux motor comprises a stator fixed to the frame, and a rotor connected to the flange for driving the flange to rotate. 
     
     
         19 . The scroll compressor according to  claim 18 , wherein the rotor is located below the stator. 
     
     
         20 . The scroll compressor according to  claim 19 , wherein the rotor and the flange are connected by interference fit, and the stator and the frame are connected by a screw.