Abstract: A power generation element and an actuator for vibration power generation is provided that can be mass-produced at low cost while achieving increase in electromotive force. A power generation element includes a main series magnetic circuit having a frame yoke made of magnetic material and provided with a fixed portion that is one end and a free portion that is the other end across a U-shaped bent portion, a main magnet that applies a magnetic bias to the frame yoke, and a first gap formed at a position in contact with the free portion; and an auxiliary series magnetic circuit having an auxiliary yoke made of magnetic material and attached to the frame yoke, an auxiliary magnet that gives a magnetic bias to the auxiliary yoke, a second gap formed at a position facing the first gap across the free portion, the frame yoke, the main magnet, and the first gap.

Abstract: Various aspects include electric generators configured to boost electrical output by leveraging electron avalanche generated by a high energy photon radiation source. In various aspects, an electric generator includes a stator and a rotor positioned within the stator, wherein the stator and rotor are configured to generate electric current when the rotor is rotated, and a high energy photon source (e.g., a gamma ray source) positioned and configured to irradiate at least a portion of conductors in the rotor or stator. In some aspects, the stator generates a magnetic field when the electric generator is operating, and the rotor includes armature windings configured to generate electric current when the rotor is rotated. In some aspects, the high energy photon source includes cobalt-60 and/or cesium-137.

Abstract: An electrical machine (10), in particular for the adjustment of movable parts in the motor vehicle, having a stator housing (22) which accommodates a stator (12) and a rotor (14), wherein the rotor (14) has a rotor shaft (20) on which a commutator (18) is arranged, which commutator can be energized by means of electrical brushes (20), and the stator housing (22) has an axial opening (24) with an encircling edge (26), through which axial opening the rotor shaft (16) protrudes out of the stator housing (22), wherein an electronics circuit board (PCB) (30), which is populated with at least one interference-suppression element (44), is arranged transversely in relation to the rotor shaft (16), and the electronics circuit board (30), in its circumferential region (31), bears against the edge (26) in a conductive manner in order to form a ground contact with the stator housing (22).

Abstract: An electric motor suitable for use in a laundry machine comprises an improved stator and/or rotor design.

Abstract: A stator and a method for producing a stator are provided. For this purpose, a connection element is used which includes multiple busbars and a star bar. The connection element has multiple contact points for the busbars and multiple contact points of the star bar. The connection element surrounds the winding ends of the winding head. The winding ends are bent relative to the contact points of the connection element and contact the contact points electrically, by a bending ridge which is positioned on the connection element.

Abstract: An electric actuator of the disclosure includes a motor, a speed reduction mechanism, and a bearing fixed to a motor shaft having an eccentric axis portion. The speed reduction mechanism has: an externally toothed gear, an internally toothed gear, a facing member facing the externally toothed gear, column members protruding from one member of the facing member and the externally toothed gear toward the other member and surrounding the motor axis, and at least one tube member surrounding the column members. The other member has hole portions surrounding the motor axis. The column members are inserted into the hole portions respectively, and support the externally toothed gear to be swingable around the motor axis via an inner side surface of each of the hole portions. The at least one tube member surrounds the column members in the hole portions and is rotatable around a rotary axis passing through the hole portions.

Abstract: An electric motor includes a stator assembly and a rotor assembly. The rotor assembly includes a rotor shaft that is rotatable relative to the stator assembly about a rotation axis. The motor also includes an endshield, a bearing assembly rotatably supporting the rotor shaft on the endshield, a shaft ground assembly electrically coupled to the rotor shaft, and a bearing lockplate. The bearing lockplate is fixedly coupled to the endshield. The shaft ground assembly is supported by the bearing lockplate on the endshield.

Abstract: A motor includes a rotor, a stator, a circuit board attached to the stator, a heat dissipation member disposed on a side of the circuit board opposite to the stator, and a resin portion covering the stator, the circuit board, and at least a part of the heat dissipation member.

Abstract: A small sized drive motor that achieves both high output including high-speed rotation and weight reduction is realized. Provided is a drive motor rotating in a predetermined direction. The drive motor includes a rotor having no magnet and including a plurality of salient poles. A stator core includes a plurality of element cores and a plurality of magnets. The salient poles are formed with a slit or a void (e.g., a second air gap)). The salient poles include a large magnetic circuit (a first magnetic circuit) on a front side of the slit in the rotational direction and having a large cross-sectional area and a small magnetic circuit a second magnetic circuit) on a rear side of the slit in the rotational direction and having a small cross-sectional area.

Abstract: According to one embodiment, a stator includes a stator core and coils having a rectangular cross-section. In one or more slots, a first rectangular conductor, which is positioned innermost in a radial direction and in which a pair of short sides in a cross section face in the radial direction, and a second rectangular conductor, which is positioned outer side of the radial direction than is the first rectangular conductor and in which a pair of long sides in the cross-section face in the radial direction, are disposed. The first rectangular conductor includes a bending part bent toward a circumferential direction. The second rectangular conductor includes a bending part bent toward the circumferential direction and a twisted part twisted about the circumferential direction.

Abstract: An ultrasonic-wave irradiation unit capable of reducing erosion and cleaning unevenness on a diaphragm and improving the joining strength of an ultrasonic transducer to the diaphragm includes a diaphragm, an ultrasonic transducer, a front-side resonating member, and a rear-side resonating member. A stud bolt protrudes from the non-radiation surface of the diaphragm. The transducer front plate of the ultrasonic transducer is joined to the non-radiation surface. The front-side resonating member is joined to the non-radiation surface and the bolt is inserted therethrough. The rear-side resonating member is provided at the tip of the bolt to fasten and secure the front-side resonating member. End-positioned resonators, mid-positioned resonators, and the ultrasonic transducer are arranged in a column. The rear-side resonating member of the end-positioned resonator is formed from a metal material with higher bending rigidity than the front-side resonating member.

Abstract: A stator assembly for an electric machine includes a first housing portion, a second housing portion, a stator body inserted into at least the first housing portion, a link for rotatably linking the stator body with the first housing portion, a first attachment for attaching the stator body to the first housing portion, and a second attachment for attaching the two housing portions to one another. The assembly includes an annular seal inserted axially between the stator body and the first attachment as well as between the two housing portions.

Abstract: A system can include an axial field rotary energy device with an axis of rotation and a rotor coaxial with the axis and having a shaft, bearings, rotor disks that are coaxial and permanent magnets on each rotor disk. A printed circuit board (PCB) stator is located between the rotor disks to define an air gap on each side of the PCB stator. An enclosure has two enclosure sections with an inspection port. Bearing caps and bearings are mounted to the rotor. A variable frequency drive (VFD) assembly is coupled to the axial field rotary energy device. The VFD has a flexible conduit that extends between the VFD housing and the axial field rotary energy device. The flexible conduit can adapt to different sizes of axial field rotary energy devices.

Abstract: According to one embodiment, in a stator, bridge parts of seventh coil segments extend in a direction departing from one end surface while being inclined at a predetermined inclination angle from an axial direction of a stator core to the outside of a radial direction. Regarding the bridge parts of the seventh coil segments adjacent to each other in the radial direction of the stator core, when the same cross-sections defined by the radial direction and the axial direction is viewed from a circumferential direction of the stator core, a first inclination angle of the bridge part positioned relatively in an inner side of the radial direction is smaller than a second inclination angle of the bridge part positioned relatively in an outer side of the radial direction.

Abstract: The present invention relates to a rotor of an electric machine for use in an aircraft. By forming the shaft of the rotor such that it performs, at least partially, the function of the back iron, components of the rotor can be combined. Further, by forming the rotor components in this manner, an internal shaft with an increased diameter can be used to provide a rotor with greater stiffness than equivalent prior art devices.

Abstract: A counter-rotating motor and a high speed blender is described. The counter-rotating motor includes a stator, an inverter, an inner rotor and an outer rotor, the stator is provided with an outer winding and an inner winding, and the outer winding and the inner winding have opposite phase sequences, the inverter is connected in parallel with the outer winding and the inner winding to synchronously supply excitation current to the outer winding and the inner winding, the inner rotor is provided in the inner winding and is used for rotating in a first direction under the effect of the inner winding, and the outer rotor is provided in the outer winding and is used for rotating in a second direction opposite to the first direction under the effect of the outer winding.

Abstract: A device includes a first rotor segment and a second rotor segment, wherein the first rotor segment and the second rotor segment are configured to be directly coupled together about a shaft to form at least a portion of a unitary rotor. The device also includes a first stator segment and a second stator segment, wherein the first stator segment and the second stator segment are configured to be directly coupled together to form at least a portion of a unitary stator.

Abstract: A motor includes a grounding ring and a first sealing piece, or includes a grounding ring, a first sealing piece, and a second sealing piece. The grounding ring is electrically coupled to a rotating shaft and a housing. The grounding ring is made of a material with good conduction performance, hence, a shaft induced voltage transmitted on the rotating shaft is transmitted to the housing through the grounding ring, instead of being transmitted to the housing through a motor bearing.

Abstract: A functional module is provided. The functional module is applied to an electronic device, and includes a housing, a functional member, and a motor assembly. Both the functional member and the motor assembly are disposed in the housing. The motor assembly includes a motor and an output shaft. The motor is configured to drive the output shaft to rotate. The output shaft protrudes from one side of the housing.

Abstract: An electrical machine includes a stator assembly coupled to an engine stator component of a propulsion engine. The stator assembly includes a stator support assembly fixedly attached to the engine stator component and a stator disposed on a supporting surface of the stator support structure. The electrical machine also includes a rotor assembly including a rotor support structure connected to a shaft of the propulsion engine and a rotor attached to the rotor support structure such that the rotor is disposed radially inward of the stator. The rotor exchanges rotational energy with the shaft to operate as either an electrical motor or an electrical generator.