Abstract: Disclosed herein is a compressor with an oil return unit. The compressor includes: a main housing; a turning scroll which is turnably mounted to the housing; a fixed scroll which engages with the turning scroll and forms a compression chamber; an auxiliary housing which includes a discharge space communicating with an outlet side of the fixed scroll, and a collection space in which oil collected in the discharge space is temporarily stored; an oil return passage which is formed in the fixed scroll and communicates with the collection space; and an oil supply passage which is formed in the main housing, communicates with the oil return passage, and diverges such that oil is supplied to at least two places.

Abstract: Disclosed herein may be an electric compressor. The electric compressor may include: a rear housing having a discharge chamber into which refrigerant is discharged; and an oil separator disposed in the discharge chamber and having a refrigerant inlet hole through which the refrigerant is drawn into the oil separator. The discharge chamber may protrude in a multi-stepped manner outwards from the rear housing such that a volume of the rear housing is increased, and based on the oil separator, an internal space of the discharge chamber may be divided into spaces having different volumes.

Abstract: Disclosed herein may be a compressor. The compressor may include: a casing; a compression unit configured to suck refrigerant from a suction space of the casing, compress the sucked refrigerant, and discharge the compressed refrigerant to a discharge space of the casing; an oil recovery passage configured to recover oil separated from refrigerant in the discharge space to the suction space; and a reducer inserted into the oil recovery passage to reduce a pressure of oil passing through the oil recovery passage. The reducer may include a deformation preventing unit configured to prevent the reducer from being damaged when the reducer is inserted into the oil recovery passage. Therefore, the reducer may be prevented from being damaged when the reducer is inserted into the oil recovery passage. The costs required to prevent the reducer from being damaged, check the conditions of the reducer, and repair reducer may be reduced.

Abstract: An eccentric bush assembly structure of a scroll compressor, in which an orbiting scroll is eccentrically coupled to a rotary shaft of a drive motor, including a bush body rotatably coupled to the orbiting scroll while being pinned to the rotary shaft of the drive motor by an eccentric shaft, the bush body having a friction prevention groove formed in a surface facing a tip surface of the rotary shaft so as not to come into frictional contact with the tip surface.

Abstract: A method of controlling an electric compressor, includes aligning a position of a rotor after an electric compressor is powered on; determining whether a refrigerant is in a liquid phase or in a gas phase; preheating the refrigerant by applying power to the electric compressor according to the phase of the refrigerant; and controlling the electric compressor wherein the electric compressor is operated after the refrigerant is preheated.

Abstract: An eccentric bush assembly structure of a scroll compressor, in which an orbiting scroll is eccentrically coupled to a rotary shaft of a drive motor, including a bush body rotatably coupled to the orbiting scroll while being pinned to the rotary shaft of the drive motor by an eccentric shaft, the bush body having a friction prevention groove formed in a surface facing a tip surface of the rotary shaft so as not to come into frictional contact with the tip surface.

Abstract: An electric compressor and a method of controlling the same, the electric compressor including a detection unit for detecting a phase of refrigerant in the electric compressor, a connection unit wound at a position adjacent to a passage of a housing for movement of a refrigerant in the electric compressor, and a control unit for performing control according to the phase of refrigerant by differently controlling power applied to the connection unit in response to data detected by the detection unit. The method including aligning a position of a rotor after an electric compressor is turned on, determining whether a refrigerant is in liquid phase or in gas phase, preheating the refrigerant by applying power to the electric compressor according to the phase of refrigerant, and controlling the electric compressor such that the electric compressor is normally operated after the refrigerant is preheated.

Abstract: Disclosed herein is a compressor that includes a casing, a fastening part disposed at a portion corresponding to a support bracket provided in a compressor mounting part of a vehicle on the casing, and a fastener connecting the support bracket to the fastening part, wherein a compressor's center of gravity and a compressor's point of support supported by the fastener are positioned in a longitudinal direction of the fastener. The present disclosure has an effect of relieving rotational moment and fatigue stress occurring in the compressor when the compressor is mounted to the vehicle.

Abstract: The present invention relates a scroll compressor. According to an exemplary embodiment of the present invention, the scroll compressor includes: an orbiting scroll configured to be seated on one surface of a main frame and provided with a plurality of seating grooves along a circumferential direction; a stepped part configured to be formed in the seating groove; a ring member configured to be inserted into the seating groove and have a lower surface adhering to the stepped part; and a guide pin configured to have one end fixed to the main frame and the other end extended in an inside length of the ring member, in which the guide pin has the end maintained in a spaced state from the stepped part.

Abstract: Disclosed herein is an electric compressor. The electric compressor includes: a housing (100) which has a discharge chamber (102) through which refrigerant is discharged; and an oil separator (200) which is disposed in the discharge chamber (102), and includes a refrigerant inlet hole (201) through which refrigerant is drawn into the oil separator (200), and a foreign substance storage part (210) storing therein foreign substances contained in the refrigerant drawn through the refrigerant inlet hole (201).

Abstract: Disclosed herein is an electric compressor. The electric compressor includes: a housing (100) which has a discharge chamber (102) through which refrigerant is discharged; and an oil separator (200) which is disposed in the discharge chamber (102), and includes a refrigerant inlet hole (201) through which refrigerant is drawn into the oil separator (200), and a foreign substance storage part (210) storing therein foreign substances contained in the refrigerant drawn through the refrigerant inlet hole (201).

Abstract: The present invention relates a scroll compressor. According to an exemplary embodiment of the present invention, the scroll compressor includes: an orbiting scroll configured to be seated on one surface of a main frame and provided with a plurality of seating grooves along a circumferential direction; a stepped part configured to be formed in the seating groove; a ring member configured to be inserted into the seating groove and have a lower surface adhering to the stepped part; and a guide pin configured to have one end fixed to the main frame and the other end extended in an inside length of the ring member, in which the guide pin has the end maintained in a spaced state from the stepped part.

Abstract: The present invention relates to an electric compressor. The electric compressor according to an exemplary embodiment of the present invention includes a rear housing in which a discharging chamber to which a coolant is discharged is formed; an oil separator disposed in the discharging chamber, having a coolant introduction hole through which the coolant is introduced formed therein and disposed to be eccentric to one side of the rear housing; a partitioning wall partitioning an inner region of the discharging chamber into different regions and having communication portions formed at different positions; and a resonance chamber in which introduction and diffusion of the coolant passing through the communication portions are simultaneously performed.

Abstract: An eccentric bush assembly structure of a scroll compressor, in which an orbiting scroll is eccentrically coupled to a rotary shaft of a drive motor, including a bush body rotatably coupled to the orbiting scroll while being pinned to the rotary shaft of the drive motor by an eccentric shaft, the bush body having a friction prevention groove formed in a surface facing a tip surface of the rotary shaft so as not to come into frictional contact with the tip surface.

Abstract: An electric compressor and a method of controlling the same, the electric compressor including a detection unit for detecting a phase of refrigerant in the electric compressor, a connection unit wound at a position adjacent to a passage of a housing for movement of a refrigerant in the electric compressor, and a control unit for performing control according to the phase of refrigerant by differently controlling power applied to the connection unit in response to data detected by the detection unit. The method including aligning a position of a rotor after an electric compressor is turned on, determining whether a refrigerant is in liquid phase or in gas phase, preheating the refrigerant by applying power to the electric compressor according to the phase of refrigerant, and controlling the electric compressor such that the electric compressor is normally operated after the refrigerant is preheated.