Scroll compressor having communication groove

A compressor, comprising:

• a casing;
• a drive motor provided in an inner space of the casing;
• a rotary shaft coupled to the drive motor;
• an orbiting scroll comprising an orbiting end plate including a rotary shaft coupler coupled to the rotary shaft, and an orbiting wrap that extends toward the casing along a circumference of the orbiting end plate from the rotary shaft coupler;
• and
• a fixed scroll comprising a fixed end plate including a center portion configured to be inserted onto the rotary shaft, a fixed wrap that extends along a circumference of the fixed end plate to engage with the orbiting wrap to compress a refrigerant, and a plurality of discharge holes that penetrates the fixed end plate near the center portion to discharge the refrigerant, wherein the orbiting scroll further comprises a communication groove provided as a recess on a portion of a surface facing the fixed wrap, wherein the plurality of discharge holes includes a first discharge hole provided inside of the fixing wrap and penetrating the fixed end plate, and a second discharge hole spaced apart from the first discharge hole and penetrating the fixed end plate, and wherein a length of the communication groove is greater than a distance between the first discharge hole and the second discharge hole.

A compressor, comprising:

• a casing;
• a drive motor provided in an inner space of the casing;
• a rotary shaft coupled to the drive motor;
• an orbiting scroll comprising an orbiting end plate including a rotary shaft coupler coupled to the rotary shaft, and an orbiting wrap that extends toward the casing along a circumference of the orbiting end plate from the rotary shaft coupler;
• and
• a fixed scroll comprising a fixed end plate including a center portion configured to be inserted onto the rotary shaft, a fixed wrap that extends along a circumference of the fixed end plate to engage with the orbiting wrap to compress a refrigerant, and a plurality of discharge holes that penetrates the fixed end plate near the center portion to discharge the refrigerant,
• wherein the orbiting scroll further comprises a communication groove provided as a recess on a portion of a surface facing the fixed wrap,
• wherein the fixed wrap includes a distal end portion spaced apart from the center portion,
• wherein the communication groove is configured to overlap the distal end portion;
• and
• wherein an area of the communication groove is larger than the distal end portion.