A rotating electrical machine has a magnetic field-producing unit, an armature with armature windings for multiple phases, and a rotor implemented by one of the magnetic field-producing unit and armature. The armature winding of each phase has a conductor portion. The conductor portion is made of a bundle of wires and has a resistance value between the bundled wires larger than that within each of the wires. Each conductor portion includes magnet facing portions arranged at a given interval away from each other and face the magnet unit. The magnet facing portions of the same phase are connected in series. The wires of the conductor portion of the same phase are connected in parallel. The order of locations of the wires of each of the magnet facing portions for the same phase is different between given portions of the magnet facing portion in an axial direction of the rotor.

A motor includes a stationary portion, a rotating portion, and a bearing portion. The rotating portion includes a shaft that rotates about a central axis extending vertically. The stationary portion includes a bearing housing, a stator, and a circuit board. The circuit board is above the stator and includes an insertion hole that permits insertion of the bearing housing. The stator includes a stator core, an insulator, a coil, and a terminal pin. The terminal pin is connected to a conductive wire and connected to the circuit board via a solder portion covered with a coating layer. The insulator includes a base portion and a wall portion. The wall portion protrudes upward from the base portion, is radially outward of the bearing housing, and contacts a radially inner surface of the circuit board at the insertion hole.

An electric oil pump includes a motor including a shaft, a pump driven via the shaft, and an inverter assembly located on a rear side of the motor and secured to the motor. The motor includes a rotor, a stator, and a motor housing that houses the rotor and the stator. The pump includes a pump rotor and a pump housing. The motor housing has a bottomed tubular shape that includes a bottom portion on a side of the inverter assembly, and the inverter assembly includes an inverter housing including a circuit board housing that houses a circuit board and a busbar holder. The busbar holder is on a side opposite to a terminal that is electrically connected to the circuit board with respect to the shaft in the circuit board housing.

An electric drive motor has a stator with at least one electrically energizable stator winding, and a rotor which is mounted in a rotationally driveable manner in the field of the at least one stator winding so as to leave free an annular gap. The motor also has a motor shaft and a magnet carrier which is arranged coaxially in relation to the motor shaft and has at least one permanent magnet which is arranged on an outer periphery of the magnet carrier. The motor shaft and the magnet carrier are of integral design by way of the motor shaft and the magnet carrier being jointly produced from an individual starting metal sheet by shaping to form an integrally shaped rotor body. There is also described a wet-rotor pump and a domestic appliance having an electric drive motor of this kind.

The present invention can provide a motor including a shaft, a yoke coupled to the shaft, a stator disposed between the shaft and the yoke, a first magnet and a second magnet which are disposed on the yoke, and a circuit board on which a first Hall sensor disposed to correspond to the first magnet and a second Hall sensor disposed to correspond to the second magnet are disposed, wherein the yoke includes a body and a flange extending from the body, the flange includes a first groove, the first magnet is disposed on an inner circumferential surface of the body, the second magnet is disposed in the first groove, and a second groove having an open portion in a direction opposite to the first groove is disposed between the body and the flange.

Provided is a base unit including a base unit chassis that supports a spindle motor, a heat dissipation member that dissipates heat generated from a stator of the spindle motor to a non-disk mounting side of the base unit chassis, and a bearing housing that suppresses heat transfer from a stator core to a bearing of the spindle motor.

A motor includes a rotor, a stator, and a circuit board below the stator. The stator includes an insulator to cover at least a portion of each of an upper surface, a lower surface, and circumferential side surfaces of each of teeth of the stator, coils each of which is defined by a conducting wire wound around a separate one of the teeth with the insulator therebetween, and a drawn-out wire drawn out from the coils and electrically connected to the circuit board. A lower portion of the insulator includes a guide radially outward of the coils and including a wall extending downward from a lower surface of the insulator and a bend extending radially outward from a lower end of the wall. At least a portion of the drawn-out wire extends in a circumferential direction along a radially outer surface of the wall.

An electric blower includes a fan, a motor to drive the fan, a first board including at least one switching element, and a second board including a microcomputer. The motor, first board, and second board are arranged in this order in a blowing direction of the fan.

A blower includes an impeller that is rotatable about a central axis extending in a vertical direction, a motor that rotates the impeller, and a base portion on which the motor is mounted. The impeller includes a cup portion that covers the motor, and blades extending radially outward from the cup portion and arranged in a circumferential direction. A gap is provided between the cup portion and the base portion such that the gap becomes narrower in an outward direction with increasing distance from an interior of the cup portion.

A stepping motor has a relationship between an outer diameter of a rotor and an outer diameter of a bearing made of magnetic material that can be adjusted appropriately so as to impart magnetic attractive force to the bearing, the stepping motor including a rotor 400 made of a permanent magnet, a stator including multiple pole teeth 223, 243, 323 and 343 extending in an axial direction of the rotor 400 arranged at an outer circumferential side of the rotor 400, a bearing 250 rotatably supporting one end portion in the axial direction of the rotor 400, and a bearing 260 rotatably supporting the other end portion in the axial direction of the rotor 400. Magnetic permeability of the bearing 260 is greater than that of the bearing 250, the rotor 400 includes multiple magnetic poles on an outer circumferential surface along a circumferential direction of the rotor 400, and an outer diameter D.sub.R of the rotor 400, an outer diameter D.sub.B of a portion of the bearing 260 which is facing the rotor 400, and a pitch P of the multiple magnetic poles of the rotor 400 are set to satisfy the following relationship of formula 1

(D.sub.RP)=<D.sub.B=<D.sub.R(Formula 1).