Scroll compressor and air conditioner

Abstract

A scroll compressor and an air conditioner in which improvement of performance is achieved by a gas injection cycle and increase in manufacturing cost is prevented are provided. A scroll compressor includes a fixed scroll ( 23 ) and a turning scroll ( 25 ) each having an end panel ( 23 a , 25 a ) formed with a convoluted wall body ( 23 b , 25 b ) extending upright from one side surface thereof, and forms a plurality of compression chambers for compressing refrigerant by being engaged with each other, characterized in that a shoulder ( 42 ) is provided on one side surface of the end panel ( 23 a ) of the fixed scroll ( 23 ), and the wall body ( 25 b ) of the turning scroll ( 25 ) is provided on an upper edge thereof with a disaligned portion ( 45 ) corresponding to the shoulder ( 42 ) of the end panel ( 23 a ), a supply unit ( 17 p ) for supplying the refrigerant supplied from an outside to the plurality of compression chambers in the course of compression of the refrigerant, and the refrigerant is supplied from the supply unit ( 17 p ) while at least the plurality of compression chambers include the shoulder ( 42 ) and the disaligned portion ( 45 ) being apart from each other.

1 . A scroll compressor comprising a fixed scroll and a turning scroll each having an end panel formed with a convoluted wall body extending upright from one side surface thereof, and forming a plurality of compression chambers for compressing refrigerant by being engaged with each other,
 wherein at least one of the fixed scroll and the turning scroll is formed on the one side surface of the end panel thereof with a shoulder which is high on the side of a center portion thereof and is low on the outer end side along the convolution of the wall body, and   the other one of the fixed scroll and the turning scroll is formed on an upper edge of the wall body thereof with a disaligned portion corresponding to the shoulder on the end panel, the disaligned portion being divided into a plurality of portions, and being low on the side of a center of the convolution and high on the outer end side thereof,   a supply unit for supplying the refrigerant supplied from an outside is formed in the plurality of compression chambers while compressing the refrigerant, and   the refrigerant is supplied from the supply unit while at least the plurality of compression chambers include the shoulder and the disaligned portion being apart from each other.   
   
   
       2 . The scroll compressor according to  claim 1 , wherein the supply unit is a through hole provided on the end panel of at least one of the fixed scroll and the turning scroll, and the through hole is provided at a position which communicates with the plurality of compression chambers while at least the plurality of compression chambers include the shoulder and the disaligned portion being apart from each other. 
   
   
       3 . The scroll compressor according to  claim 1 , wherein the supply unit is provided at a contact portion of the shoulder with respect to the disaligned portion. 
   
   
       4 . The scroll compressor according to  claim 1 , wherein seal members which come into contact with the end panel are provided in an area on the upper edge of the wall body from the disaligned portion toward the center portion of the convolution, and an area from the disaligned portion toward the outer end, and the supply unit is provided in an area of the end panel where the seal members do not slide. 
   
   
       5 . The scroll compressor according to  claim 1 , wherein a control unit which controls the supply of the refrigerant from the supply unit to the plurality of compression chambers is provided and the control unit controls the refrigerant to be supplied from the supply unit while the shoulder and the disaligned portion are apart from each other. 
   
   
       6 . An air conditioner comprising:
 a scroll compressor according to  claim 1 ;   an oil separating unit for separating lubricant from refrigerant compressed by the scroll compressor;   a radiator for radiating heat of the refrigerant compressed by the scroll compressor;   a high-pressure-side decompression unit for decompressing the pressure of the radiated refrigerant;   a low-pressure-side decompression unit for further decompressing the decompressed refrigerant; and   a heatsink for causing the refrigerant decompressed by the low-pressure-side decompressing unit to absorb the heat, wherein the refrigerant decompressed by the high-pressure-side decompressing unit and the lubricant separated by the oil separating unit are supplied to the supply unit of the scroll compressor.