Abstract: An electric compressor capable of reducing a size and lightening weight of a package of an inverter unit, as a common mode choke (CM choke) is disposed radially outside of a circuit board of the inverter unit, and a high voltage connector, a CM choke, and a low voltage connector are integrated into a support body.

Abstract: A clutch and a compressor including the same, and may include a hub fastened to a rotary shaft of a compressor and rotatable with the rotary shaft in a state where its position has been fixed, a disk fastened to the hub and rotatable with the hub, a pulley rotated by receiving power from a driving source of the compressor, an elastic member fastening the hub and the disk, fastening the hub and the disk so that the disk approaches or is away from the pulley based on the hub, a field coil assembly magnetized when power is applied to contact or space the disk and the pulley, an attenuation member interposed between the elastic member and the disk, thereby reducing the noise and vibration due to the contact and spacing between the disk and the pulley by the elastic member and the attenuation member.

Abstract: A field core unit for an electromagnetic clutch can include: a field coil generating a magnetic flux; a magnetic part provided with an annular-shaped insertion groove encompassing lower and side portions of the field coil such that the magnetic flux flows through the magnetic part; and a field core configured such that an upper surface thereof is open and an interior space is formed therein. The magnetic part can be inserted into the field core.

Abstract: Disclosed herein are a clutch and a compressor including the same. The clutch includes a hub fastened to a rotary shaft of the compressor to be rotatable together with the rotary shaft in a state in which a position of the hub is fixed, a disk fastened to the hub to be rotatable together therewith, a pulley rotated by power transmitted from a drive source of the compressor, an elastic member for fastening the hub and the disk such that the disk is movable toward or away from the pulley with respect to the hub, a field coil assembly magnetized when electric power is applied thereto to allow the disk and the pulley to come into contact with or separate from each other, and an attenuation member interposed between the elastic member and the disk. Accordingly, it is possible to reduce noise and vibration due to contact and separation between the disk and the pulley by the elastic member and the attenuation member.

Abstract: A clutch and a compressor including the same, and may include a hub fastened to a rotary shaft of a compressor and rotatable with the rotary shaft in a state where its position has been fixed, a disk fastened to the hub and rotatable with the hub, a pulley rotated by receiving power from a driving source of the compressor, an elastic member fastening the hub and the disk, fastening the hub and the disk so that the disk approaches or is away from the pulley based on the hub, a field coil assembly magnetized when power is applied to contact or space the disk and the pulley, an attenuation member interposed between the elastic member and the disk, thereby reducing the noise and vibration due to the contact and spacing between the disk and the pulley by the elastic member and the attenuation member.

Abstract: Disclosed herein are a clutch and a compressor including the same. The clutch includes a hub fastened to a rotary shaft of the compressor to be rotatable together with the rotary shaft in a state in which a position of the hub is fixed, a disk fastened to the hub to be rotatable together therewith, a pulley rotated by power transmitted from a drive source of the compressor, an elastic member for fastening the hub and the disk such that the disk is movable toward or away from the pulley with respect to the hub, a field coil assembly magnetized when electric power is applied thereto to allow the disk and the pulley to come into contact with or separate from each other, and an attenuation member interposed between the elastic member and the disk. Accordingly, it is possible to reduce noise and vibration due to contact and separation between the disk and the pulley by the elastic member and the attenuation member.

Abstract: A field core unit for an electromagnetic clutch can include: a field coil generating a magnetic flux; a magnetic part provided with an annular-shaped insertion groove encompassing lower and side portions of the field coil such that the magnetic flux flows through the magnetic part; and a field core configured such that an upper surface thereof is open and an interior space is formed therein. The magnetic part can be inserted into the field core.

Abstract: Disclosed are a pulley structure and a damper pulley that prevent corrosion. The pulley structure may include a hub part that is fitted on a crankshaft rotated by power from an engine and rotates with the crankshaft and a pulley part coupled with the hub part to rotate with the hub part and connected with a power transmission member. The hub part may include a pulley contact surface facing the pulley part, and pulley coupling portions formed at the pulley contact surface to secure coupling members. The pulley part may include a hub contact surface facing the pulley contact surface of the hub part, hub coupling portions coupled to the pulley coupling portions by securing the coupling members, and coupling grooves recessed from the hub coupling portions to insert the coupling members. Washers made of an insulator may be fitted on the coupling members between the pulley coupling portions and the hub coupling portions.

Abstract: Disclosed therein are a pulley assembly for a compressor and a manufacturing method of the same, which can prevent possible damages during processing and is fit for high-temperature environment because a pulley is made of magnesium alloy. The pulley assembly includes: a cylindrical hollow pulley made of magnesium alloy; an inner ring formed integrally with the pulley by insert injection molding, the inner ring being fixed to the inner circumferential surface of the pulley and made of a different material from the pulley; and a bearing forcedly pressed and fixed to the inner circumferential surface of the inner ring.

Abstract: Disclosed are a pulley structure and a damper pulley that prevent corrosion. The pulley structure may include a hub part that is fitted on a crankshaft rotated by power from an engine and rotates with the crankshaft and a pulley part coupled with the hub part to rotate with the hub part and connected with a power transmission member. The hub part may include a pulley contact surface facing the pulley part, and pulley coupling portions formed at the pulley contact surface to secure coupling members. The pulley part may include a hub contact surface facing the pulley contact surface of the hub part, hub coupling portions coupled to the pulley coupling portions by securing the coupling members, and coupling grooves recessed from the hub coupling portions to insert the coupling members. Washers made of an insulator may be fitted on the coupling members between the pulley coupling portions and the hub coupling portions.

Abstract: Disclosed is a field coil assembly of an electromagnetic clutch including a bobbin from which lead wires, which are both ends of a coil made of an aluminum-based material, protrude outward, a core that surrounds the bobbin such that the lead wires are exposed, a bobbin terminal installed at the bobbin while being adjacent to the lead wire of the coil, and a connector coupled to the core and including a lead wire terminal. The lead wires of the coil are connected to the bobbin terminal through heating and pressing.

Abstract: Disclosed therein are a pulley assembly for a compressor and a manufacturing method of the same, which can prevent possible damages during processing and is fit for high-temperature environment because a pulley is made of magnesium alloy. The pulley assembly includes: a cylindrical hollow pulley made of magnesium alloy; an inner ring formed integrally with the pulley by insert injection molding, the inner ring being fixed to the inner circumferential surface of the pulley and made of a different material from the pulley; and a bearing forcedly pressed and fixed to the inner circumferential surface of the inner ring.

Abstract: The present invention relates to a power transmission device for a water pump, including a pulley, a magnetic flux generator, a disk assembly, and a hub assembly, wherein the disk assembly has a disk, a friction ring for providing a frictional contact with the hub assembly, and a resilient ring adapted to pressurize the friction ring toward the hub assembly, so that when the attracting magnetic flux of the magnetic flux generator is not applied, the friction ring makes a frictional contact with the hub assembly through the resilient pressurization of the resilient ring, whereas, when it is applied, the disk moves toward the pulley to allow the frictional contact between the friction ring and the hub assembly to be released.

Abstract: The present invention relates to a power transmission device for a water pump, including a pulley, a magnetic flux generating means, a disk assembly, and a hub assembly, wherein the disk assembly has a disk, a friction ring having the frictional contact with the hub assembly, and a resilient ring adapted to pressurize the friction ring toward the hub assembly, so that when the attracting magnetic flux of the magnetic flux generating means is not applied, the friction ring makes frictional contact with the hub assembly through the resilient pressurization of the resilient ring, whereas, when it is applied, the disk moves toward the pulley to allow the frictional contact between the friction ring and the hub assembly to be released.

Abstract: A field coil assembly for an electromagnetic clutch, which includes an electromagnetic coil body formed by winding an electromagnetic coil; a bobbin for supporting the electromagnetic coil body; a field core for receiving the bobbin and the electromagnetic coil body; a holder mounted to the electromagnetic coil body; and a thermal fuse installed to the holder to be connected to the electromagnetic coil body, wherein the holder having the thermal fuse installed thereto is provided with an elastic member for elastically supporting the thermal fuse upwards. Thus, the height of the thermal fuse installed to the holder can be adjusted.

Abstract: A field coil assembly of an electromagnetic clutch for a compressor and a method for manufacturing the same, wherein the field coil assembly includes a coil installed in a core and made by winding a wire W and a connector coupled thereto. The connector is provided with a terminal which is electrically connected to one end of the wire W. A protective coating is formed at a connecting portion between the terminal and the end of the wire W to prevent the connecting portion of the wire W and the terminal from being exposed to the outside. Accordingly, the connecting portion between the terminal and the coil is not exposed to moisture or air, thereby preventing electric short circuit from occurring by galvanic corrosion between the terminal and the coil.

Abstract: Disclosed is a field coil assembly of an electromagnetic clutch including a bobbin from which lead wires, which are both ends of a coil made of an aluminum-based material, protrude outward, a core that surrounds the bobbin such that the lead wires are exposed, a bobbin terminal installed at the bobbin while being adjacent to the lead wire of the coil, and a connector coupled to the core and including a lead wire terminal. The lead wires of the coil are connected to the bobbin terminal through heating and pressing.

Abstract: The present invention relates to a field coil assembly of an electromagnetic clutch for a compressor. The present invention comprises a core 210, and a coil 240 installed to the core 210 and formed by winding a unit wire 250. At this time, the unit wire 250 wound on the coil 240 is made of aluminum, and an area ratio R of an inner sectional area M of the core 210 to a cross-sectional area of the unit wire 250 is 400 to 640. According to the present invention as above, since the unit wire 250 used for the coil 240 is made of aluminum with a small specific weight and low price rather than copper, the weight of the field coil assembly 200 is decreased to improve fuel efficiency of a vehicle and decrease a production cost of the field coil assembly 200.

Abstract: The present invention relates to an electric power connection part of an electromagnetic cluth field coil assembly coupled with a vehicle compressor. Since the electric power connection part has the discharge device and/or the magnetic field elimination device and the terminal which are integrally formed by injection molding in the housing assembly of a electromagnetic cluth field coil assembly, it is possible to rapidly and facilely perform the assembling process, increase the productivity and also reduce fabricating costs.