Abstract: This present disclosure provides a compressor and a refrigeration device having the compressor. The refrigeration device has a coupling assembly and a frequency converter connected to one end of the coupling assembly. The compressor has a first shell and a permanent magnet motor. The permanent magnet motor is set in the first shell and connected to the other end of the coupling assembly. By designing the relevant parameters of the motor of the compressor, the efficiency of the motor and the compressor can be improved.

Abstract: A motor stator (11) for a compressor, a permanent magnet motor (10), and a compressor (A) are disclosed. The stator (11) includes: a stator core (111); a stator winding (112), the stator winding (112) including a plurality of coil groups, and each coil group having at least two connectors (1124); a lead-out wire (113) used to connect an external circuit and the stator winding (112), there being a plurality of lead-out wires (113) and each lead-out wire (113) being connected to connectors of at least two different coil groups, wherein the rated voltage between terminals on which a motor is mounted is Un, the maximum outer diameter of the stator core (111) is Dmax, and the axial length of the stator core (111) is L, Un/(Dmax2×L)?0.3 V/cm3.

Abstract: A stator assembly, a motor, a compressor and a refrigeration device are provided. The stator assembly has a store core, tooth parts, and windings. The tooth parts are arranged on an inside wall of the stator core and distributed in a circumferential direction of the stator core. Grooves are defined between every two adjacent tooth parts. The tooth parts have a first tooth. The windings are arranged on the tooth parts by being initially wound on the first tooth and, subsequently passing through the grooves on both sides of the first tooth when being wound on other tooth parts.

Abstract: Disclosed are a permanent magnet motor, a compressor and a refrigeration system. In the permanent magnet motor, the diameter D of a contour circle of the smallest inner periphery of a stator, the diameter d of a contour circle of the largest outer periphery of a rotor, the fundamental wave amplitude Bm1 of an air-gap flux density at an average gap between the stator and the rotor, the axial length L of the rotor, the total number of serially connected turns Ns of each phase winding, and a bus DC voltage Udc of a frequency converter supplying power to the permanent magnet motor before inversion are set as: 0.003 Udc?(D+d)×L×Bm1×Ns?0.008 Udc.

Abstract: A permanent magnet motor, a compressor and an air conditioner are disclosed. The permanent magnet motor has a stator and a rotor. The stator has a stator core and a stator winding. The rotor is spaced apart from the stator in an inner-outer direction. The rotor has a rotor core and a permanent magnet embedded in the rotor core. A maximum distance between an outer peripheral contour of a cross section of the rotor and a center of the cross section of the rotor is D1, an axial length of rotor core is L, and a rated power of permanent magnet motor is P. D 1, L and P satisfy: D1/L?1.7 and P/(D12×L) 8.5, and the unit of P is W, and the unit of D1 and L is cm.

Abstract: A permanent magnet, a rotor, a motor and a compressor are provided. A work face of the permanent magnet includes a first edge and a second edge, a head endpoint of the first edge is connected to a tail endpoint of the second edge by means of a transition edge, the transition edge is located at a side, adjacent to a center of the work face, of a line connecting the head endpoint with the tail endpoint, and the transition edge includes at least one sub-arc segment, or a combination of at least one sub-arc segment and at least one sub-straight segment.

Abstract: A compressor and a refrigeration apparatus are provided. The housing of the compressor has a first terminal and a second terminal. The motor of the compressor has a stator, a first line group and a second line group. The first line group extends from a first position of an end face of the stator and is connected to the first terminal. The second line group extends from a second position of the end face and is connected to the second terminal. A midpoint between the first position and the second position defines a middle point. A plane passing through the middle point and an axis of an output shaft of the motor is defined as a middle plane. The first terminal and the first position are at one side of the middle plane. The second terminal and the second position are at the other side of the middle plane.

Abstract: This present disclosure provides a compressor and a refrigeration device having the compressor. The refrigeration device has a coupling assembly and a frequency converter connected to one end of the coupling assembly. The compressor has a first shell and a permanent magnet motor. The permanent magnet motor is set in the first shell and connected to the other end of the coupling assembly. By designing the relevant parameters of the motor of the compressor, the efficiency of the motor and the compressor can be improved.

Abstract: Disclosed are a permanent magnet motor, a compressor and a refrigeration system. In the permanent magnet motor, the diameter D of a contour circle of the smallest inner periphery of a stator, the diameter d of a contour circle of the largest outer periphery of a rotor, the fundamental wave amplitude Bm1 of an air-gap flux density at an average gap between the stator and the rotor, the axial length L of the rotor, the total number of serially connected turns Ns of each phase winding, and a bus DC voltage Udc of a frequency converter supplying power to the permanent magnet motor before inversion are set as: 0.003 Udc?(D+d)×L×Bm1×Ns?0.008 Udc.

Abstract: A motor stator (11) for a compressor, a permanent magnet motor (10), and a compressor (A) are disclosed. The stator (11) includes: a stator core (111); a stator winding (112), the stator winding (112) including a plurality of coil groups, and each coil group having at least two connectors (1124); a lead-out wire (113) used to connect an external circuit and the stator winding (112), there being a plurality of lead-out wires (113) and each lead-out wire (113) being connected to connectors of at least two different coil groups, wherein the rated voltage between terminals on which a motor is mounted is Un, the maximum outer diameter of the stator core (111) is Dmax, and the axial length of the stator core (111) is L, Un/(Dmax2×L)?0.3 V/cm3.

Abstract: A permanent magnet, a rotor, a motor and a compressor are provided. A work face of the permanent magnet includes a first edge and a second edge, a head endpoint of the first edge is connected to a tail endpoint of the second edge by means of a transition edge, the transition edge is located at a side, adjacent to a center of the work face, of a line connecting the head endpoint with the tail endpoint, and the transition edge includes at least one sub-arc segment, or a combination of at least one sub-arc segment and at least one sub-straight segment.