Refrigerator

Abstract

A refrigerator stated is characterized in that it includes a machine room ( 14 ) formed on a lower part of a rear of a main body of the refrigerator; a refrigerant compressor ( 12 ) installed offset to one side in the machine room ( 14 ) in a width direction; and a cooler ( 9 ) for receiving a refrigerant from the refrigerant compressor ( 12 ) and cooling an inside of a storage chamber; wherein the cooler ( 9 ) is arranged inside the refrigerator via a heat insulating wall ( 3 a ) of the main body above the refrigerant compressor ( 12 ) arranged on one side of the machine room ( 14 ) and at a position on an opposite side of the refrigerant compressor ( 12 ) in a width direction; and control and power source boards ( 21 ) of the refrigerator are arranged in another wide space of the refrigerant compressor ( 12 ) in the machine room ( 14 ) in a width direction. As described above, a refrigerator is provided which, by changing the position relationship and structure of the cooler ( 9 ), the refrigerant compressor ( 12 ), and the control and power source boards ( 21 ), can reduce the thermal loss of the cooler ( 9 ), improve the heat insulation efficiency, and increase the heat radiation efficiency of the machine room ( 14 ) and a condenser ( 13 ), and thereby can obtain a power conservation effect.

1 . A refrigerator, comprising: 
 a machine room formed on a lower part of a rear of a main body of said refrigerator;    a refrigerant compressor installed offset to one side in said machine room in a width direction; and    a cooler for receiving a refrigerant from said refrigerant compressor and cooling an inside of a storage chamber;    wherein said cooler is arranged inside said refrigerant refrigerator via a heat insulating wall of said main body above said refrigerant compressor arranged on one side of said machine room and at a position on an opposite side of said compressor in a width direction;    control and power source boards of said refrigerator are arranged in another wide space of said refrigerant compressor in said machine room in a width direction, and    said control and power source boards are divided and stacked into two back and forth stages.    
   
   
       2 . The refrigerator according to  claim 1 , wherein: 
 another wide space of said refrigerant compressor installed offset is a heat radiation duct from a flat-shaped condenser installed on a bottom of said main body; and    an intra-duct fan is installed in the neighborhood of said refrigerant compressor of said heat radiation duct.    
   
   
       3 . The refrigerator according to  claim 2 , wherein: 
 an opening width on an opposite side of said refrigerant compressor from a partition board for partitioning said machine room equipped with said fan in a width direction is an air flow-in port from said condenser.    
   
   
       4 . The refrigerator according to  claim 2  or  3 , wherein said control and power source boards and/or an electrical part which are heating elements are installed in a heat exchange relationship to air flowing said heat radiation duct.  
   
   
       5 . The refrigerator according to  claim 1 , wherein: 
 among said control and power source boards divided and stacked into two back and forth stages, one is a high-voltage circuit board and the other is a low-voltage circuit board; and    said high-voltage circuit board is arranged at an inner side of said machine room.    
   
   
       6 . The refrigerator according to  claim 1 , wherein: 
 among said control and power source boards divided and stacked into two back and forth stages, one is a high-voltage circuit board and the other is a low-voltage circuit board; and    a position of a bottom of said high-voltage circuit board is higher than a position of a bottom of said low-voltage circuit board.    
   
   
       7 . The refrigerator according to  claim 6 , wherein: 
 in said high-voltage side board, a switching transformer is of insulated type and a ground of a rectifier circuit and a ground of a motor control winding of a switching power unit are not connected; and    in said low-voltage side board, a ground of an inverter switch unit and a ground of a motor control unit are connected.    
   
   
       8 . The refrigerator according to  claim 5  or  6 , wherein: 
 among said control and power source boards divided and stacked into two back and forth stages so as to make said divided parts different in vertical height, said board with a higher height is arranged along an upward inclined part to an outside of a heat insulating wall in the neighborhood of an opening of a rear of said machine room, and said board with a lower height is arranged at an inner side of said machine room.    
   
   
       9 . The refrigerator according to any of  claims 1  to  8 , wherein: 
 an evaporating dish is loaded in said heat radiation duct unit installed on an opposite side of said refrigerant compressor installed offset to one side in a width direction of a compressor base attached to a bottom of said machine room.