Scroll compressor including suction guide

A scroll compressor, comprising:

• a casing;
• a high/low pressure separation plate configured to divide an inner space of the casing into a low-pressure portion and a high-pressure portion;
• a refrigerant suction pipe that communicates with the low-pressure portion through the casing;
• a refrigerant discharge pipe that communicates with the high-pressure portion through the casing;
• a drive motor installed inside of the low-pressure portion;
• an orbiting scroll coupled to the drive motor through a rotational shaft to perform an orbiting motion;
• a non-orbiting scroll engaged with the orbiting scroll to form a compression chamber, and having a suction port formed through an outer circumferential surface thereof to communicate with the compression chamber;
• and
• a suction guide having a suction passage to guide refrigerant suctioned into the low-pressure portion toward the compression chamber, wherein the suction guide comprises a passage inlet that defines a first end of the suction passage and open toward the low-pressure portion, and a passage outlet that defines a second end of the suction passage and open toward the suction port, wherein the passage inlet is open in a direction extending perpendicular with respect to an outlet end of the refrigerant suction pipe, wherein the suction guide comprises:
• a first side wall and a second side wall disposed at both sides of the suction port in a circumferential direction, respectively;
• an outer wall that connects an outer end of the first side wall and an outer end of the second side wall;
• an inner wall that connects an inner end of the first side wall and an inner end of the second side wall;
• an upper wall that connects upper ends of the first side wall, the second side wall, and the outer wall;
• and
• a lower wall that connects lower ends of the first side wall, the second side wall, and the outer wall, and wherein the passage inlet is formed by opening at least a portion of the lower wall, and the passage outlet is formed by opening at least a portion of the inner wall, wherein the upper wall faces the high/low pressure separation plate, and wherein a thickness of the upper wall is thicker than a thickness of the other walls of the suction guide.

A scroll compressor, comprising:

• a casing;
• a high/low pressure separation plate configured to divide an inner space of the casing into a low-pressure portion and a high-pressure portion;
• a refrigerant suction pipe that communicates with the low-pressure portion through the casing;
• a refrigerant discharge pipe that communicates with the high-pressure portion through the casing;
• a drive motor installed inside of the low-pressure portion;
• an orbiting scroll coupled to the drive motor through a rotational shaft to perform an orbiting motion;
• a non-orbiting scroll engaged with the orbiting scroll to form a compression chamber, and having a suction port formed through an outer circumferential surface thereof to communicate with the compression chamber;
• and
• a suction guide having a suction passage to guide refrigerant suctioned into the low-pressure portion toward the compression chamber, wherein the suction guide comprises a passage inlet that defines a first end of the suction passage and open toward the low-pressure portion, and a passage outlet that defines a second end of the suction passage and open toward the suction port, wherein the outlet end of the refrigerant suction pipe is open in a radial direction of the scroll compressor, and the passage inlet of the suction guide is open in an axial direction of the scroll compressor, wherein the passage inlet is located at an opposite side from the drive motor with respect to the outlet end of the refrigerant suction pipe, wherein the suction guide comprises:
• a first side wall and a second side wall disposed at both sides of the suction port in a circumferential direction, respectively;
• an outer wall that connects an outer end of the first side wall and an outer end of the second side wall;
• an inner wall that connects an inner end of the first side wall and an inner end of the second side wall;
• an upper wall that connects upper ends of the first side wall, the second side wall, and the outer wall;
• and
• a lower wall that connects lower ends of the first side wall, the second side wall, and the outer wall, and wherein the passage inlet is formed by opening at least a portion of the lower wall, and the passage outlet is formed by opening at least a portion of the inner wall, and wherein a suction extension portion extends from the first side wall and the second side wall toward the drive motor, wherein the suction extension portion at least partially overlaps the outlet end of the refrigerant suction pipe in a radial direction, and wherein the suction extension portion is spaced apart from an inner circumferential surface of the casing.