Hermetically encapsulated refrigerant compressor

Abstract

The invention relates to a hermetically encapsulated refrigerant compressor comprising a housing having a bottom part and a cover, the cover being connectable to the bottom part, an electrical connection piece penetrating the housing and a piston pump which is arranged in the housing and can be electrically connected to a control unit via the connection piece. The cover of the housing has a through opening in which the electrical connection piece is arranged. The housing is configured in such a way that, when the housing is open, the piston pump can be inserted into the cover of the housing and is connectable to the electrical connection piece.

1 - 12 . (canceled) 
     
     
         13 . A hermetically encapsulated refrigerant compressor comprising a housing having a bottom part and a cover, the cover being connectable to the bottom part, an electrical connection piece penetrating the housing and a piston pump which is arranged in the housing and can be electrically connected to a control unit via the connection piece, characterized in that the piston pump is arranged in the cover of the housing and the cover of the housing has a through opening in which the electrical connection piece is arranged and that the housing is configured in such a way that, when the housing is open, the piston pump can be inserted into the cover of the housing and is connectable to the electrical connection piece. 
     
     
         14 . A refrigerant compressor according to  claim 13 , characterized in that at least one positioning aid is provided onto which the piston pump can be attached in an upside-down manner, with the housing being open. 
     
     
         15 . A refrigerant compressor according to  claim 14 , characterized in that the positioning aid comprises geometric formations, such as projections or ribs, on the inside of the cover, the geometric formations serving as supports for the piston pump. 
     
     
         16 . A refrigerant compressor according to  claim 14 , characterized in that the positioning aid comprises geometric formations, such as projections or ribs, on the housing of the piston pump, which formations serve as supports on the inside of the cover when the piston pump is being inserted into the cover of the housing. 
     
     
         17 . A refrigerant compressor according to any of  claims 14 , characterized in that the positioning aid comprises at least one element insertable into the cover and serving as a support for the piston pump. 
     
     
         18 . A refrigerant compressor according to  claim 13 , characterized in that the electrical connection piece forms electrical plugs with a steel base body and metallic conductor pins held by an electrically insulating material, preferably glass, with the electrical connection piece being inserted into the through opening of the cover and being sealingly connected to the circumference of the cover's through opening. 
     
     
         19 . A refrigerant compressor according to  claim 13 , characterized in that the housing has a substantially horizontal dividing plane between the bottom part and the cover of the housing, whereby the bottom part and the cover of the housing can be welded together along this dividing plane. 
     
     
         20 . A refrigerant compressor according to  claim 13 , characterized in that the housing is made of a corrosion-resistant material, preferably metal or metal alloys, with the housing parts preferably being deep-drawn parts. 
     
     
         21 . A refrigerant compressor according to  claim 13 , characterized in that the cover of the housing has connecting pipes, in particular a suction pipe, a pressure pipe and a maintenance pipe. 
     
     
         22 . A refrigerant compressor according to  claim 13 , characterized in that the bottom part of the housing has adjustable feet or fastening elements on its outside. 
     
     
         23 . A method of assembling a hermetically encapsulated refrigerant compressor according to  claim 13 , the method comprising the following steps:
 providing a housing having a bottom part and a cover and comprising a through opening penetrating the cover;   sealingly inserting an electrical connection piece into the through opening of the cover of the housing;   placing the cover on a working surface with its open side up;   providing a piston pump and inserting the piston pump into the cover of the housing from above in an upside-down manner;   establishing an electrical connection between the electrical connection piece and the piston pump;   arranging the bottom part with its open side down and placing the bottom part thus arranged on the cover of the housing;   establishing a hermetically sealed connection between the bottom part and the cover of the housing, preferably by means of a welded joint.   
     
     
         24 . A method according to  claim 23 , characterized in that the piston pump is inserted into the cover of the housing from above in an upside-down manner in such a way that the piston pump will be oriented and will lie by means of at least one positioning aid.