A motor includes a stator that includes a stator core around which a stator winding is wound; magnets; a rotating body; a shaft; a rotor; a first bearing; a second bearing; a first metal bracket that fixes the first bearing; and a second metal bracket that fixes the second bearing. The stator core, the first metal bracket, and the second metal bracket are electrically connected, and when a connection point between the stator core and the first metal bracket or the second metal bracket is defined as a connection point A of a bearing outer ring, a capacitive member having a capacitance C.sub.n is located between a portion having the same potential as the connection point A and a portion having a zero reference potential of a drive circuit that applies a voltage to the stator core.

A motor retainer is provided on an inner circumferential surface of a housing and retains an outer circumference of a motor unit. A rotation detector includes a rotating body attached to a motor shaft and a position detector that outputs a rotational position signal corresponding to a rotational position of the rotating body. A sensor substrate retainer is provided on the inner circumferential surface of the housing and retains the position detector at a position facing the rotating body.

A vehicle electric motor including: a tubular-shaped stator core constituted by electromagnetic steel sheets that are laminated on each other; a rotor disposed inside the stator core so as to be rotated about an axis; and a housing storing therein the tubular-shaped stator core and the rotor, and including a circumferential wall and axially opposite end walls that are opposed to each other in a direction parallel with the axis. The stator core is fixed at one of its axially end portions to one of the axially opposite end walls of the housing. The housing includes a stator-core-inclination restraining portion that protrudes from an inner circumferential surface of the circumferential wall of the housing toward a part of an outer circumferential surface of the stator core, wherein the part is located on a side of the other of the axially end portions of the stator core.

Embodiments of the present disclosure relate to a motor and an industrial robot. The motor comprises a main body, an inner end cover, an outer end cover, a first oil seal, a second oil seal and an oil leakage sensor. The main body comprises a rotor extending along an axial direction. The inner end cover is coupled to the main body and comprises a first hole for the rotor to pass through. The outer end cover is arranged outside the inner end cover along the axial direction and abuts against the inner end cover. The outer end cover comprises a second hole for the rotor to pass through, wherein a first oil seal is arranged adjacent to the second hole and a second oil seal is arranged inside the first oil seal and is adjacent to the second hole. A gap is provided between the first oil seal and the second oil seal along the axial direction. The oil leakage sensor is provided in a through hole penetrating the outer end cover along the axial direction and is configured to detect the amount of oil or grease flowing to the oil leakage sensor via the first oil seal. The motor according to the present disclosure is characterized in dual sealing and an automatic oil leakage detection, thereby improving the motor sealing reliability and the digitalization of the motor oil leakage detection.

A pressure supply unit for a brake system including a booster body that defines an axially extending cylinder. A piston is slideable within the cylinder. The piston defines a bore that receives a spindle. The spindle is rotationally fixed and axially moveable for providing the axial movement of the piston. A motor is positioned about the spindle and is configured to axially translate the spindle and piston. A ball and socket joint connects the piston and spindle while accommodating pivoting movement of the spindle. The ball and socket joint includes a ball at a front end of the spindle and a socket in the bore of the piston which receives the ball.

A cooling arrangement for an electric machine (1, 1a, 1b) includes a rotatably mounted rotor shaft (2). A rotatably mounted hollow shaft (11) is mounted coaxially to the rotor shaft (2) and rotationally fixed to the rotor shaft (2). A hollow shaft inner side (12) is spaced apart from a rotor shaft outer side (5) in a radial direction (R) in order to form an annular gap (14). At least one cooling duct for a cooling lubricant includes a hollow shaft duct (18), a feed duct (20), and an outlet duct (25). The feed duct (20) opens into the hollow shaft duct (18) in order to feed the cooling lubricant to the hollow shaft duct (18). The outlet duct (25) extends from the hollow shaft duct (18) to the annular gap (14) in order to release the cooling lubricant from the hollow shaft duct (18) into the annular gap (14).

The present invention may provide a motor including a shaft, a rotor coupled to the shaft, a stator disposed to correspond to the rotor, a busbar disposed above the stator, a bearing plate disposed above the busbar, and a power terminal unit coupled to the bearing plate and electrically connected to the busbar, wherein the busbar includes a first terminal, the power terminal unit includes a second body and a second terminal disposed on the second body, the bearing plate includes a first hole, and a first end portion of the first terminal, which passes through the first hole and is disposed in the second body, and a second end portion of the second terminal are in contact with each other in the second body.

An electric motor and an electrical appliance are provided. The electric motor includes a rotating shaft, a stator, a rotor disposed on the rotating shaft, spaced apart from the stator, and embedded in the stator, a first end cover, and a first bearing. The first bearing includes a first outer ring fixed on the first end cover and insulated from at least part of the first end cover, a first inner ring embedded in the first outer ring, and a first ball disposed between the first outer ring and the first inner ring. The rotating shaft is fixed on the first inner ring and rotationally supported on the first end cover. The part of the first end cover that is insulated from the first outer ring is short-circuited with a stator core of the stator and is grounded.

A motor includes a rotor, a stator that surrounds the radial outer side of the rotor, a housing that contains the rotor and the stator, a holder axially above the stator, a substrate fixed to the axial upper side of the holder, and a connector radially outward of the housing and electrically connected to the substrate. The holder includes a holder body, and a holder protrusion that connects to the holder body and extends radially outward from the housing. The connector contacts the underside of the holder protrusion.

[Object] To provide an electronic apparatus capable of inhibiting a failure due to dropping of a screw from occurring. [Solving Means] An electronic apparatus 100 according to an embodiment of the present invention includes: a casing 10; a cover portion (case cover 20); a circuit board 22; a screw member 80; and a facing member (holding member 60). The cover portion has a first surface and a second surface and is to be attached to an opening portion 11 of the casing 10, the first surface including a screw hole 203 and facing the casing 10, the second surface being opposite to the first surface. The circuit board 22 is to be disposed on the first surface. The screw member 80 includes a head portion 81 and a shank 82 and fixes the circuit board 22 to the cover portion, the head portion 81 engaging with the circuit board 22, the shank 82 including a groove 82s and passing through the circuit board 22, the groove 82s being screwed into the screw hole 203. The facing member is to be disposed inside the casing 10 and faces the head portion 81 with a distance (L1) smaller than a length (L2) of the shank 82.