Scroll compressor, and sealing method and sealing arrangement for mid-pressure chamber thereof

Abstract

A scroll compressor and a sealing method and sealing arrangement for a mid-pressure chamber thereof are provided. The scroll compressor includes: a scroll compressor shell; a housing, mounted inside the scroll compressor shell; a fixed scroll, fixed onto the housing; an orbiting scroll, supported on the housing and cooperating with the fixed scroll; a driving mechanism, located between the orbiting scroll and the housing and connected to the orbiting scroll to drive the orbiting scroll to orbit; and a mid-pressure chamber, which is a cavity surrounded by a hub of the orbiting scroll and a part of the housing and which is sealed by two sealing members.

1 - 18 . (canceled) 
     
     
         19 . A scroll compressor, comprising:
 a scroll compressor shell;   a housing, mounted inside the scroll compressor shell;   a fixed scroll, fixed onto the housing;   an orbiting scroll, supported on the housing and cooperating with the fixed scroll;   a driving mechanism, located between the orbiting scroll and the housing, and connected with the orbiting scroll to drive the orbiting scroll to orbit; and   a mid-pressure chamber, being a cavity surrounded by a hub of the orbiting scroll and a part of the housing, and wherein the mid-pressure chamber is sealed by two sealing members.   
     
     
         20 . The scroll compressor according to  claim 19 , wherein,
 the two sealing members are disposed on the housing.   
     
     
         21 . The scroll compressor according to  claim 20 , wherein,
 a first sealing member of the two sealing members is located at a position where an outer end of a lower surface of a main body of the orbiting scroll is in contact with a first part at an upper portion of the housing, and a second sealing member of the two sealing members is located at a position where a bottom of the hub of the orbiting scroll is in contact with a second part at a lower portion of the housing.   
     
     
         22 . The scroll compressor according to  claim 21 , wherein,
 the first sealing member is located in a groove in the first part of the housing, and the second sealing member is located in a groove in the second part of the housing.   
     
     
         23 . The scroll compressor according to  claim 22 , wherein,
 the first sealing member is an elastic rubber sealing ring or a Teflon sealing ring; and/or   the second sealing member is an elastic rubber sealing ring or a Teflon sealing ring.   
     
     
         24 . The scroll compressor according to  claim 22 , wherein,
 the first sealing member is C-shaped or X-shaped; and/or   the second sealing member is C-shaped or X-shaped.   
     
     
         25 . The scroll compressor according to  claim 20 , wherein,
 the scroll compressor is a high-side compressor.   
     
     
         26 . A method for sealing a mid-pressure chamber of a scroll compressor, comprising:
 sealing the mid-pressure chamber by using two sealing members, the mid-pressure chamber being a cavity surrounded by a hub of an orbiting scroll of the scroll compressor and a part of a housing of the scroll compressor.   
     
     
         27 . The method according to  claim 26 , wherein,
 the two sealing members are disposed on the housing.   
     
     
         28 . The method according to  claim 27 , wherein,
 a first sealing member of the two sealing members is located at a position where an outer end of a lower surface of a main body of the orbiting scroll is in contact with a first part at an upper portion of the housing, and a second sealing member of the two sealing members is located at a position where a bottom of the hub of the orbiting scroll is in contact with a second part at a lower portion of the housing.   
     
     
         29 . The method according to  claim 28 , wherein,
 the first sealing member is located in a groove in the first part of the housing, and the second sealing member is located in a groove in the second part of the housing.   
     
     
         30 . The method according to  claim 29 , wherein,
 the first sealing member is an elastic rubber sealing ring or a Teflon sealing ring; and/or   the second sealing member is an elastic rubber sealing ring or a Teflon sealing ring.   
     
     
         31 . The method according to  claim 28 , wherein,
 the first sealing member is C-shaped or X-shaped; and   the second sealing member is C-shaped or X-shaped.   
     
     
         32 . A sealing arrangement for sealing a mid-pressure chamber of a scroll compressor, comprising:
 two sealing members, adapted to seal the mid-pressure chamber of the scroll compressor, wherein the mid-pressure chamber is a cavity surrounded by a hub of an orbiting scroll of the scroll compressor and a part of a housing of the scroll compressor.   
     
     
         33 . The sealing arrangement according to  claim 31 , wherein,
 the two sealing members comprises a first sealing member and a second sealing member;   wherein the first sealing member is located at a position where an outer end of a lower surface of a main body of the orbiting scroll is in contact with a first part at an upper portion of the housing, and the second sealing member is located at a position where a bottom of the hub of the orbiting scroll is in contact with a second part at a lower portion of the housing.   
     
     
         34 . The sealing arrangement according to  claim 33 , wherein the first sealing member is located in a groove in the first part of the housing, and the second sealing member is located in a groove in the second part of the housing. 
     
     
         35 . The sealing arrangement according to  claim 34 , wherein,
 the first sealing member is an elastic rubber sealing ring or a Teflon sealing ring; and/or   the second sealing member is an elastic rubber sealing ring or a Teflon sealing ring.   
     
     
         36 . The sealing arrangement according to  claim 34 , wherein,
 the first sealing member is C-shaped or X-shaped; and/or   the second sealing member is C-shaped or X-shaped.