Abstract: An integral-type electric power steering device is configured in such a way that a motor component, a reduction mechanism, and a control device are integrally fixed, and the control device includes at least heating elements which are operated for control and which generate heat, a control board on which the heating elements are mounted, and mechanism components for fixing the control board; and at least a part of the heat, which is generated by the heating elements, is conducted to the mechanism components via a thermal-conductive component.

Abstract: A method for orienting a timepiece component including ferromagnetic material, where, on both ends of this component, two magnetic fields each attract it onto a pole piece, with an unbalance in the intensity of these fields around this component, in order to create a differential in the forces thereon and to press one of these ends onto a contact surface of one of the pole pieces, and to hold the other end at a distance from the other pole piece. A magnetic pivot includes such a component with two ends. It includes a guide device with surfaces of two pole pieces each generating a magnetic field attracting one of these ends, the magnetic forces exerted on the two ends being of different intensity, in order to attract only one end into contact with only one of these pole piece surfaces.

Abstract: A double resonance vibration motor includes a housing, vibration parts in the housing, a coil fixed in the housing, and elastic connectors to support elastically the vibration part. The vibration parts include a mass block, a first magnet group and a second magnet group installed in the mass block. The coil is opposite to the first magnetic group and the second magnetic group. The driving force generated by the first magnetic group and the coil makes the vibration motor vibrate along the first direction. The driving force of the second magnet group and the coil makes the vibration motor vibrate along the second direction. The first direction and the second direction intersect. Two different directions have respectively one resonance frequency. Two different resonant frequencies can vibrate alone or at the same time, to realize the control in different vibration directions.

Abstract: A rotor 2 includes a rotor core 21 fixed to a rotation axis in such a manner that the rotor core 21 is rotatable integrally with the rotation axis, the rotor core 21 being configured to have a plurality of magnets 22 mounted thereon throughout a circumferential direction; a first rotor cover 24 that includes a first tubular portion 26, the first tubular portion 26 having a tubular shape configured to cover an outer circumference of one axial side of the rotor core 21; and a second rotor cover 25 that includes a second tubular portion 28, the second tubular portion 28 having a tubular shape configured to cover an outer circumference of the other axial side of the rotor core 21.

Abstract: A method for making an actuator includes forming a substantially planar actuator device of an electrically conductive material, the device incorporating an outer frame, a fixed frame attached to the outer frame, a moveable frame disposed parallel to the fixed frame, a motion control flexure coupling the moveable frame to the outer frame for coplanar, rectilinear movement relative to the outer frame and the fixed frame, and an actuator incorporating a plurality of interdigitated teeth, a fixed portion of which is attached to the fixed frame and a moving portion of which is attached to the moveable frame, moving the moveable frame to a deployed position that is coplanar with, parallel to and spaced at a selected distance apart from the fixed frame and fixing the moveable frame at the deployed position for substantially rectilinear, perpendicular movement relative to the fixed frame.

Abstract: A stator structure includes a main body. The main body has multiple poles. The poles outward extend from the main body. Each pole has a free end. An end face of the free end of the pole has an extension section normal to the main body. The extension section has multiple protrusion blocks. Each two adjacent protrusion blocks define therebetween a recess. The stator structure is able to greatly enhance the operation efficiency of the motor and lower manufacturing cost.

Abstract: The present invention relates to electric appliances for personal care, in particular electric shavers, comprising a magnetic linear drive unit having first and second drive components supported for linear displacement relative to each other and adapted to magnetically interact with each other, wherein a drive support is provided for supporting the drive unit onto a mounting structure. The drive support supporting the drive unit onto a mounting structure of the installation environment is adapted to provide for at least one axis of rotation for the drive unit allowing said drive unit to rotate relative to the mounting structure, said axis of rotation being spaced apart from the drive unit to provide for a transmission ratio increasing or decreasing the oscillation amplitude of the functional element driven by the drive unit vis-à-vis the oscillation amplitude of the drive unit.

Abstract: A magnetic kinetic propulsion motor apparatus and method includes a shaft with a first two ended rotational blade attached at a midpoint of the two ended rotational blade to the shaft. A proximity magnetic sensor is connected at both ends of the two ended rotational blade. A stationary housing surrounds the shaft and the first two ended rotational blade. Several self-aligning repulsion electro-magnets are connected to the stationary housing and a proximity switch is connected with each of the self-aligning repulsion electro-magnets. An electronic ignition distributor is connected to each proximity switch connected with the self-aligning repulsion electro-magnets and a battery is connected to the electronic ignition distributor.

Abstract: The invention relates to a motor housing for an electric motor with a stator as well as to an electric motor with a housing, whereby at least one multifunctional opening is arranged in the lower housing section and whereby electronics can be arranged in the housing, characterized in that, in order to cool the electronics, the multifunctional opening has a baffle by means of which an air flow can be directed towards the electronics, and, as an alternative, it has an offset on the side facing the upper housing section in order to mechanically connect the stator to the lower housing section.

Abstract: A cooling structure of an oil cooling motor may include a housing, a front cover and a rear cover each mounted at both sides of a housing along a length direction of the housing, a rotor shaft extending through the housing and have both ends rotatably supported by bearings of the front cover and the rear cover, a rotor disposed in the housing and rotatably supported by the rotor shaft, a front oil supply groove and a rear oil supply groove formed on opposing inner sides of the front cover and the rear cover and configured to temporarily store oil stored in a bottom of the housing and scattered by churning of the rotor, and a front cover passage and a rear cover passage configured to communicate with the front oil supply groove and the rear oil supply groove, respectively.

Abstract: A brush holder has a core side position regulator engaged with a first connection plate to regulate a relative position. The core side position regulator has a projection part projected toward an armature core in the axial direction, and a fitting groove portion defined on both sides of the projection part in a circumferential direction. The relative position in the circumferential direction is regulated by an engagement between the projection part and a slit of the first connection plate. The relative position in the axial direction is regulated by an engagement between sides of the slit and the fitting groove portion. A width of the projection part in the circumferential direction is larger than a width of a brush in the circumferential direction.

Abstract: A wheel powered alternator charging system captures rotational energy of a vehicle wheel, transferring the rotational energy to an alternator to generate electricity. An alternator, a mounting bracket, and a transfer shaft are mounted to a support frame. An input wheel is connected to an existing wheel on the vehicle. The input wheel is connected to the transfer shaft by a first pulley assembly. A second pulley assembly is connected between the transfer shaft and an alternator wheel. As the vehicle wheel rotates, mechanical energy is transferred through the first pulley assembly, the transfer shaft, and the second pulley assembly to the alternator. The mounting bracket is affixed to the vehicle frame.

Abstract: A motor may include a rotor including a shaft; a stator; and a bearing supporting the shaft. The rotor may include a plurality of core pieces on an outer side of the shaft, a plurality of permanent magnets, and a mold resin part between the core pieces. The neighboring core pieces may include a magnet insertion hole provided therebetween. The permanent magnet may include two poles, with poles of neighboring magnets facing each other having identical polarity. The mold resin part may include at least one first guide part disposed closer to one side than the center between neighboring core pieces, and covers at least a portion of a surface on one side of the magnet insertion hole in a circumferential direction, the permanent magnet being in direct indirect contact via resin with the core piece disposed on the other side of the magnet insertion hole.

Abstract: Electric motor includes stator, rotor, a pair of bearings, outer-ring conducting part, and printed circuit board. Outer-ring conducting part electrically couples outer rings to each other that are included respectively in the pair of bearings. Printed circuit board includes drive circuit and an impedance element. Drive circuit includes ground line. Drive circuit controls an electric current that flows through stator winding. The impedance element is formed with at least not smaller than one pair of conductive patterns. One of the conductive patterns forming the impedance element is electrically coupled with outer-ring conducting part. The other of the conductive patterns forming the impedance element is electrically coupled with ground line included in drive circuit.

Abstract: A power tool with a combined printed circuit board (PCB) that reduces internal wiring of the power tool and provides a large amount of air flow to internal components. In some instances, the combined PCB has a surfboard shape and includes a motor control unit and power switching elements (Field Effect Transistors or FETs). The combined surfboard PCB is located above the trigger, but below the motor and drive mechanism. In other instances, the combined PCB has a doughnut shape and is located coaxially with a motor shaft. The combined PCB may be positioned between a doughnut-shaped control PCB and the motor.

Abstract: Provided is a broadband and large displacement angular vibrator, comprising an outer housing, a vibration table, a main spindle, a moving coil assembly, a magnetic circuit assembly, a holding brake assembly, a motor and closed loop control assembly thereof, an electric viscoelastic feedback control assembly, an air bearing, and an angular displacement sensor; the moving coil comprises a moving coil substrate and a coil; the moving coil substrate is fixed to the main spindle; the magnetic circuit assembly comprises a magnetic ring, a central magnetic pole, and magnets; the magnetic ring, central magnetic pole, magnets, and air gap form a closed magnetic circuit; the central magnetic pole is located inside the magnetic ring, the magnets are located between the magnetic ring and the central magnetic pole, and the magnets are attached to the central magnetic pole; the outer housing has the holding brake assembly; the holding brake assembly comprises a brake lining, an oil distribution sleeve, and an oil reservoir

Abstract: A power-supply-lead retaining part includes a pair of legs extending toward a bearing through hole, a pair of first locking portions provided on the pair of legs and locked to the edge portion of the bearing through hole, and a pair of second locking portions locked to the edge portion of the sensor substrate on both sides of a notch.

Abstract: A heat transfer device that includes a thermionic power generator, a wiring, a load circuit, and a switch circuit. The thermionic power generator includes an emitter electrode and a collector electrode facing each other with an inter-electrode gap distance, and converts heat energy into electric energy by capturing, with the collector electrode, a thermoelectron that is emitted from the emitter electrode. The wiring electrically connects the emitter electrode and the collector electrode. The load circuit is connected to an electric current path of by wiring between the emitter electrode and the collector electrode. The switch circuit switches between an ON state and an OFF state.

Abstract: An outer rotor type brushless motor of the present invention comprises: a rotor portion having a rotor frame, a shaft, and a rotor magnet; a bearing housing; a stator portion facing the rotor magnet and having a stator core, a plurality of first salient pole portions extending toward the rotor magnet from the stator core, an insulation surrounding the first salient pole portion, and a winding around the first salient pole portion through the insulation; and a torque holding portion provided on an inner side of the outer circumference portion of the rotor frame and an outer circumference of the bearing housing, and having a plurality of second salient pole portions disposed coaxially with the stator core and extending toward the rotor magnet, where the first salient pole portions and the second salient pole portions are provided in different numbers.

Abstract: A power tool (1; 90) includes a motor (17) having a stator (18) and a rotor (19). The stator (18) includes front and rear insulators (21, 22) respectively disposed forward and rearward of a stator core (20) in an axial direction thereof. At least six coils (23) are respectively wound on the stator (18) such that the coils (23) are wound through the front and rear insulators (21, 22). Winding wires (23a) respectively electrically connect circumferentially-adjacent pairs of the coils (23). A short circuiting device (25) short circuits respective pairs of windings (23a) that are located diagonally or diametrically across from one another.