Baffle plate assembly for a compressor

Abstract

A baffle plate assembly has a baffle plate comprising a back plate and a partition wall. The back plate has an inner space and is attached to the housing of the compressor. The partition wall is formed on the back plate to divide the inner space of the back plate into at least one upper guiding channel communicating with the compressing chamber in the compressor and at least one lower guiding channel communicating with the motor chamber of the compressor. Accordingly, the working fluid can be respectively led into the compressing chamber and the motor chamber of the compressor through the at least one upper guiding channel and the at least one lower guiding channel in a certain proportion. Consequently, the compressor will operate at an optimal condition.

What is claimed is:  
     
         1 . A baffle plate assembly for a compressor having a housing, a compressing chamber, a motor chamber and an inlet, the baffle plate assembly comprising: 
 a baffle plate adapted to be attached to the housing of the compressor, adapted to correspond to the inlet of the compressor and having;    a back plate with a bottom and an inner space and adapted to be attached to the housing of the compressor; and    a partition wall formed on the back plate to divide the inner space of the back plate into at least one upper guiding channel adapted to communicate with the compressing chamber in the compressor and at least one lower guiding channel adapted to communicate with the motor chamber of the compressor.    
     
     
         2 . The baffle plate assembly as claimed in  claim 1 , wherein the back plate has a U-shaped cross section to define an inner space in the back plate.  
     
     
         3 . The baffle plate assembly as claimed in  claim 2 , wherein the back plate has two wings respectively extending from two sides of the back plate.  
     
     
         4 . The baffle plate assembly as claimed in  claim 3 , wherein the partition wall is laterally formed between the wings to divide the inner space into one upper guiding channel and one lower guiding channel.  
     
     
         5 . The baffle plate assembly as claimed in  claim 3 , wherein multiple recesses are defined in the back plate at a position corresponding to the at least one upper guiding channel.  
     
     
         6 . The baffle plate assembly as claimed in  claim 2 , wherein multiple recesses are defined in the back plate at a position corresponding to the at least one upper guiding channel.  
     
     
         7 . The baffle plate assembly as claimed in  claim 2 , wherein the back plate has a cavity defined in the back plate at a position corresponding to the at least one upper guiding channel.  
     
     
         8 . The baffle plate assembly as claimed in  claim 7 , wherein multiple recesses are defined in the back plate at a position corresponding to the cavity.  
     
     
         9 . The baffle plate assembly as claimed in  claim 8 , wherein the back plate has an inclined section at an area where corresponds to the cavity.  
     
     
         10 . The baffle plate assembly as claimed in  claim 8 , wherein the back plate has a curved cross section at an area where corresponds to the cavity.  
     
     
         11 . The baffle plate assembly as claimed in  claim 3 , wherein the partition wall with a top end and a bottom end is longitudinally formed on the back plate to divide the inner space into one upper guiding channel and one lower guiding channel respectively at two sides of the partition wall; 
 a lower closed wall is connected between the bottom end of the partition wall and one of the wings and corresponds to the upper guiding channel to make an upper opening in the upper guiding channel; and    an upper closed wall is connected between the top end of the partition wall and the other wing and corresponds to the lower guiding channel to make a lower opening in the lower guiding channel.    
     
     
         12 . The baffle plate assembly as claimed in  claim 11 , wherein multiple recesses are defined in the back plate at a position corresponding to the at least one upper guiding channel.  
     
     
         13 . The baffle plate assembly as claimed in  claim 1 , wherein multiple recesses are defined in the back plate at a position corresponding to the at least one upper guiding channel.  
     
     
         14 . The baffle plate assembly as claimed in  claim 1  further comprising a thermal-conductive element attached to the bottom of the back plate and adapted to securely attached to the housing of the compressor to make the back plate be moveably attached to the housing of the compressor.  
     
     
         15 . The baffle plate assembly as claimed in  claim 14 , wherein the thermal conductive element comprises two metal plates combined with each other and cach having a thermal expansion coefficient different from that of the other.  
     
     
         16 . The baffle plate assembly as claimed in  claim 15  further comprising a sliding device mounted on the back plate to make the back plate be moveably attached to the housing of the compressor.  
     
     
         17 . The baffle plate assembly as claimed in  claim 16 , wherein the sliding device comprises: 
 two wings respectively formed on two sides of the back plate;    a longitudinal groove defined through each respective wing; and    at least one screw penetrating through each respective longitudinal groove and adapted to be screwed into the housing of the compressor.    
     
     
         18 . The baffle plate assembly as claimed in  claim 17 , wherein multiple recesses are defined in the back plate at a position corresponding to the at least one upper guiding channel.  
     
     
         19 . The baffle plate assembly as claimed in  claim 14 , wherein multiple recesses are defined in the back plate at a position corresponding to the at least one upper guiding channel.