Abstract: A ceiling fan motor includes a shaft, a stator, an upper motor cover, a bearing unit, a lower motor cover, a rotor magnet, and a circuit board arranged below the stator. The upper motor cover is a ferromagnetic body. The circuit board includes a board body, a rotation sensor attached to the board body and opposed to the rotor magnet in an up-down direction, and a circuit component larger in mass than the rotation sensor. If there is defined an imaginary line which is orthogonal, when seen in the up-down direction, to a line interconnecting the rotation sensor and the center axis and which passes through the shaft, a gravity center of the circuit board is positioned in one of two areas of the circuit board divided by the imaginary line, which differs from the other area where the rotation sensor exists.

Abstract: A molded motor includes a ring-shaped stator and a rotor disposed inside the stator. The stator has teeth, insulators surrounding the teeth, coils wound around the insulators, and a molded part molding the teeth, insulators and coils. The insulators are partially exposed from the molded part.

Abstract: An electric motor includes: a stator of columnar shape including a stator core of annular shape and mold resin molding the stator core, the stator core accommodating a rotor configured to rotate about a rotary shaft; and a position detecting circuit board including a position detecting element configured to detect a position of the rotor. The stator has a cavity for accommodating the rotor. One end of the cavity is covered by the mold resin. The position detecting circuit board is placed on an opposite side from the rotor across the mold resin covering the one end of the cavity.

Abstract: An electric motor includes: a stator of columnar shape including a stator core of annular shape and mold resin molding the stator core, the stator core accommodating a rotor configured to rotate about a rotary shaft; and a temperature detecting element buried in the mold resin. The stator core includes a plurality of stator teeth around which a coil wounded around respectively. The temperature detecting element is buried in the mold resin from any one of the pair of end surfaces at a position between two adjacent stator teeth.

Abstract: An electric motor comprising an annular stator core, a resin molding the stator core, a casing member housing the stator core, wherein the casing member has an opening, and the resin is filled into the opening.

Abstract: A first motor case (52) comprises a partition unit (52A) of annular shape that is formed on a surface facing a first space (P1) that is formed between the first motor case (52) and a gear case (70). The gear case (70) is fitted into the partition unit (52A).

Abstract: An electric motor includes: a rotor configured to rotate about a rotating shaft; a stator having a coil; and a mold resin configured to mold the stator. The stator includes a bus ring which is provided along a circumferential direction of the stator and which is connected to the coil. The bus ring has a terminal exposed from the mold resin to the outside. The terminal is held by a terminal holder provided outside the mold resin.

Abstract: A molded motor having a stator having an annular stator core coated with molding resin has a motor case which joins the stator. The motor case has a rib portion formed at the outer circumference of the junction face between the motor case and the stator.

Abstract: A stator includes multiple motor coils. The motor coils include multiple U-phase coils, multiple V-phase coils and multiple W-phase coils which are arranged in a circumferential direction of a motor. A neutral bus ring connects the motor coils together. The neutral bus ring is divided into multiple bus ring members. Each bus ring member connects together any one of the U-phase coils, any one of the V-phase coils and any one of the W-phase coils.

Abstract: A molded motor includes an annular stator formed by molding coils in resin, a rotor disposed in an internal space which is formed radially inside the stator, a cover covering the internal space, and an elastic member sandwiched between the cover and the stator and located at a more inner side in the radial direction of the stator from the coils.

Abstract: An electric motor includes: a rotor configured to rotate about a rotating shaft; a stator having a coil; a mold resin configured to mold the stator, and a case body configured to hold the stator molded by the mold resin. The stator comprises a bus ring which is provided along a circumferential direction of the stator and which is connected to the coil. The bus ring is provided on a side opposite to the case body.

Abstract: An electric motor includes: a rotor configured to rotate about a rotating shaft; a stator having a coil; and a mold resin configured to mold the stator. The stator includes: an inner peripheral bus ring which is provided along an inner periphery of the stator and which is connected to the coil; and an outer peripheral bus ring which is provided along an outer periphery of the stator and which is connected to the coil. The inner peripheral bus ring is provided at a position deeper than a position of the outer peripheral bus ring in a direction of the rotating shaft.

Abstract: A motor driving device includes a motor and a brake mechanism which brakes rotation of the motor. The motor and the brake mechanism are disposed in parallel to each other. A connection portion for connecting the motor and the brake mechanism is disposed between the motor and the brake mechanism. A size of the connection portion in the radial direction with respect to the axis of the motor is smaller than outer diameter of the motor as well as outer diameter of the brake mechanism.

Abstract: A molded motor includes: a stator of columnar shape; and a motor case provided on an end face of the stator. The stator includes a plurality of yoke segments arranged in a circumferential direction of the stator, and a molded portion configured to mold the plurality of yoke segments. The motor case has an outer wall provided along outer circumferences of the plurality of yoke segments. The outer wall is lower in height in an axial direction of the stator than the molded portion.

Abstract: In a molded motor, a driving shaft is protruded from a motor case. A stator includes a molded portion forming the end face of the stator. The molded portion includes a groove portion provided in the end face of the stator. The motor case includes a protruding portion protruded toward the end face of the stator. The protruding portion, fitted into the groove portion, is made of a material having a heat conductivity higher than the molded portion.

Abstract: An electric motor comprising an annular stator core, a resin molding the stator core, a casing member housing the stator core, wherein the casing member has an opening, and the resin is filled into the opening.

Abstract: An electric motor includes: a stator of columnar shape including a stator core of annular shape and mold resin molding the stator core, the stator core accommodating a rotor configured to rotate about a rotary shaft; and a temperature detecting element buried in the mold resin. The stator core includes a plurality of stator teeth around which a coil wounded around respectively. The temperature detecting element is buried in the mold resin from any one of the pair of end surfaces at a position between two adjacent stator teeth.

Abstract: An electric motor includes: a stator of columnar shape including a stator core of annular shape and mold resin molding the stator core, the stator core accommodating a rotor configured to rotate about a rotary shaft; and a position detecting circuit board including a position detecting element configured to detect a position of the rotor. The stator has a cavity for accommodating the rotor. One end of the cavity is covered by the mold resin. The position detecting circuit board is placed on an opposite side from the rotor across the mold resin covering the one end of the cavity.

Abstract: An aspect of the invention provides a motor that comprises: a stator including multiple motor coils; multiple bus rings configured to distribute currents of different phases to the motor coils; and a ring-shaped bus ring holder in which multiple holding grooves configured to hold the respective bus rings are formed, wherein: each of the motor coils includes an insulator around which a wound wire is wound; the insulator includes an outer flange formed at an outer side of the wound wire in a radial direction of the motor and extending in an axial direction of the motor; and the bus ring holder is arranged at an outer side of the outer flange in the radial direction of the motor, and contiguous to the outer flange.

Abstract: A molded motor includes a ring-shaped stator and a rotor disposed inside the stator. The stator has teeth, insulators surrounding the teeth, coils wound around the insulators, and a molded part molding the teeth, insulators and coils. The insulators are partially exposed from the molded part.