Compressor endplate

A compressor comprising:

• a compression section that compresses a working fluid;
• a motor that drives the compression section;
• a rotation shaft that transmits a driving force of the motor to the compression section;
• and
• a main body container that accommodates the compression section and the motor, wherein
• the compression section has a cylinder that forms a compression chamber of the working fluid, a piston that is disposed in the compression chamber, and an end plate that closes one end of the cylinder in an axial direction of the rotation shaft,
• the end plate has a shaft hole through which the rotation shaft passes, a center portion in which the shaft hole is provided and that forms a sliding surface on which the piston slides, an annular outer peripheral portion that is disposed on the outer peripheral side of the center portion and has an outer peripheral surface that is joined to an inner peripheral surface of the main body container, a plurality of connection portions that connect the center portion and the outer peripheral portion, and a plurality of through holes that are formed between the adjacent connection portions to penetrate the end plate,
• the center portion is provided with a recess portion having a discharge hole for discharging the working fluid from the compression section, and a fixing hole through which a fixing member for fixing a reed valve for opening and closing the discharge hole to the end plate passes, and
• in a fan-shaped region surrounded by a first half line starting from the center of the shaft hole and passing through the center of the discharge hole, a second half line starting from the center of the shaft hole and passing through the center of the fixing hole, and the outer peripheral surface of the outer peripheral portion, when the compressor is viewed in the axial direction of the rotation shaft, the through hole is formed to be continuous in the circumferential direction of the fan-shaped region, and both ends of the through hole in a circumferential direction of the fan-shaped region are located outside the fan-shaped region.