Abstract: An electronic device includes an enclosure and a keyboard positioned within the enclosure. The keyboard includes a substrate and a key mechanism. The key mechanism includes a keycap support mechanism, a keycap supported by the keycap support mechanism and movable relative to the substrate, a ferromagnetic component attached to the keycap support mechanism, and a selectively magnetizable magnet. The selectively magnetizable magnet system may include a magnetizable material and a coil configured to selectively magnetize and demagnetize the magnetizable material. The key mechanism may include a collapsible dome biasing the keycap toward the extended position.

Abstract: Three substrate side terminal members are provided on a circuit substrate on which electronic components for controlling a brushless motor are disposed. Two of the substrate side terminal members protrude on a side in close proximity to bearing retaining members, and the remaining one substrate side terminal member protrudes on a side separated from the bearing retaining members. Ends of flexible wire members, the other ends of which are held in engagement with stator side terminal members, are held in engagement with the three substrate side terminal members.

Abstract: A magnetic set-up for use in a rotary encoder is disclosed. The set-up includes a permanent magnet arrangement including at least one permanent magnet, which is rotatable with respect to a rotation axis, and a soft magnetic sleeve encompassing the rotation axis and thus the permanent magnet arrangement for shielding against external magnetic fields. The at least one permanent magnet includes a through-hole, which extends along the rotation axis, so that the permanent magnet fully extends around the rotation axis.

Abstract: A solenoid drive may include a ferromagnetic housing having a coil receiving chamber axially limited by opposing face side walls, a cylindrical coil arrangement having at least one electric coil, the coil arrangement being arranged in the chamber and coaxially surrounding a cylindrical coil interior space, a ferromagnetic plunger stop having a central region projecting axially in the interior space, a ferromagnetic plunger arranged at the housing opposing the plunger stop, and a ferromagnetic bypass device extending in a circumferential direction and arranged coaxially with respect to the coil arrangement and radially within the coil. The plunger may project axially into the coil interior space and may be adjustable axially bi-directionally relative to the housing between active and distal positions, which are proximal and distal, respectively, with respect to the central region. The bypass device may be spaced apart axially from the face side walls.

Abstract: This present invention provides a novel DC dynamo which is characterized by making the magnetic lines of flux pass through an air gap between the rotator and the stator in the same direction, thus the most of armature coils can always receive the electromotive force of the same polarity in the same direction. Therefore, bidirectional energy conversion between the mechanical energy and the electrical energy of the armature coils in series can still proceed in the absence of commutators and induced the armature to generate sufficient electromotive force to conveniently regulate suitable terminal voltages and the ratios of the rotating speed and the moving speed thereof.

Abstract: An electric motor with a stator includes a first plurality of coils and a plurality of first electrical connectors. Each of the coils of the first plurality of coils are connected to at least one of the plurality of first electrical connectors. The stator also includes a first guide on a first end of the motor for guiding each of the first electrical connectors. The stator also includes a second plurality of coils. Each of the coils of the second plurality coils is connected to at least one of a plurality of second electrical connectors. The stator also includes a second guide on a opposed second end of the motor positioned at least partially over the second end face of the stator. The second guide guides each of the second electrical connectors.

Abstract: An electricity recharging device includes a motor provided with an elongated shaft, a coil unit mounted on the motor, a rotary disk secured on the elongated shaft of the motor, a rectifier connected with the coil unit, and a storage battery connected with the rectifier. The coil unit includes at least one coil pole. The rotary disk encompasses the coil unit and has an interior provided with at least one magnet. Thus, when the motor is operated, the elongated shaft drives and rotates the rotary disk relative to the coil unit to produce a magnetic force and to generate an electric current that flows into the storage battery to prolong the usage time of the storage battery.

Abstract: A motor including: a frame having an inner peripheral portion; a holder configured to be supported by the frame; a shaft passing through the inner peripheral portion of the frame; and a bearing configured to support the shaft, and the holder includes: a tubular portion configured to hold the bearing; and an outer peripheral portion provided with a plurality of hole portions arranged in a circumferential direction, and each of portions of the inner peripheral portion of the frame are inserted into a distinct one of the plurality of hole portions.

Abstract: An electric actuator assembly having a support housing, a first stator magnetic field generating assembly secured to the support housing and a movable armature assembly. The movable armature assembly includes a plate assembly having a center support. The electric actuator assembly also includes a first armature magnetic field generating assembly configured to provide magnetic fields operative with a first stator magnetic field generating assembly to provide linear motion of the movable armature assembly along a reference axis, the first armature magnetic field generating assembly including first and second magnetic assemblies secured to opposite sides of the center support. In another embodiment, the electric linear actuator includes a rotational component coupled to a linear component to move therewith. The rotational component includes an armature magnetic field generating assembly being one of longer or shorter than a stator magnetic field generating assembly.

Abstract: A brushless motor includes a stator, a control device, and a rotor. The stator includes a stator core and windings. The stator core includes teeth arranged next to one another in a circumferential direction and slots formed between the teeth. The windings are inserted into the slots and wound around the stator core as three-phase windings of a plurality of systems. The control device generates a three-phase driving current. The rotor is rotated and driven when the three-phase windings are supplied with the three-phase driving current. The windings are operable independently in each system. At least two windings of different systems and the same phase are arranged mixed in the same slot. The driving current of the same phase is supplied to the two windings of different systems and the same phase arranged in the same slot.

Abstract: In a rotor of a rotating electric machine, a rotor core is fixed by plastically deforming a shaft having a simple structure. The rotor core is formed by laminating steel sheets provided with shaft holes. The shaft is formed of a hollow metal component and is inserted so as to penetrate through the shaft holes in the steel sheets. A wall surface of the shaft is partially cut in the circumferential direction, and of two wall surface regions aligned in the axial direction with a cut portion in between, the wall surface region positioned on the side farther from the rotor core is plastically deformed in the radial direction. In this way, protruding portions that open the cut portions are formed. End surfaces of the rotor core are pressure bonded and fixed by the cut portions of these protruding portions.

Abstract: A magnet array includes multiple magnet rings and a frame. The multiple magnet rings are positioned along a longitudinal axis and coaxially with the longitudinal axis, wherein at least two of the magnet rings include mixed-phase magnet rings that are phase-dissimilar. The multiple magnet rings are configured to jointly generate a magnetic field along a direction parallel to the longitudinal axis of at least a given level of uniformity inside a predefined inner volume. The frame is configured to fixedly hold the multiple magnet rings in place.

Abstract: Solid-state deposition of materials and structures formed thereof are described. In particular embodiments, solid-state deposition of materials may be utilized for integrated magnetic assemblies. The integrated magnetic assemblies may include a substrate having a cavity that is physically isolated from an environment external from the substrate and a magnetizable magnetic element formed of particles of magnetizable material. The magnetizable magnetic element may be carried within the cavity such that the magnetizable magnetic element fills the cavity and takes on a size and a shape of the cavity.

Abstract: An axial gap motor rotor opposes a stator in an axial direction. The axial gap motor rotor includes a rotor core and a magnet. The magnet is arranged on the rotor core. The magnet is configured so that one axial end includes magnetic poles that alternately change in a circumferential direction. The rotor core includes a base, which is located at a center in a radial direction, and radial extensions, which are extended from the base outward in the radial direction and arranged in the circumferential direction. The magnet is configured to at least partially overlap the radial extensions in the axial direction. The radial extensions are located to include a boundary of adjacent ones of the magnetic poles in the circumferential direction.

Abstract: A rotary electrical machine has a first annular body and a second annular body that face opposite each other with a coil interposed therebetween, either the first annular body or the second annular body being provided with a permanent magnet, the first annular body and/or the second annular body rotating about the axis of a rotating shaft, and the driving force of a motor being extracted through the rotating first annular body or second annular body or through the axis of the rotating shaft rotating with the rotating first annular body or second annular body.

Abstract: A method for assembling a stator structure of a motor comprises providing a stator coil and a stator frame. The stator coil has a wire with an end segment and the stator frame includes a connector and a conductor. The conductor has an open-barrel crimping portion and a temporary holding portion. The method further comprises positioning the end segment of the wire in the crimping portion and a tip end of the end segment in the temporary holding portion. The method further comprises crimping the crimping portion to the end segment of the wire to electrically connect the connector and the end segment of the wire by penetrating an insulating coating of the end segment.

Abstract: An electromagnetic relay includes a movable terminal including a movable contact, a fixed terminal including a fixed contact that faces the movable contact, first irons disposed on one of the fixed terminal and the movable terminal, and a second iron disposed on another one of the fixed terminal and the movable terminal such that the second iron at least partially overlaps both of the first irons.

Abstract: An electric machine with a rotor (4) rotatably disposed within a stator (1) with a stator winding (3) has a plurality of permanent magnets (8) received therein. A casing (17) encloses the stator and the rotor, and an impeller (13) with blades is fixed to an axle (7) of the rotor so as to generate a flow of air through the casing for cooling end-turns (25) of the stator winding by drawing air through an inlet opening (18) at one end of the casing and blowing it out of the casing through an outlet opening (19) at the other end of the casing. At least one shutter is arranged to close the outlet opening (19) when the temperature of the cooling air through the outlet opening reaches a predetermined level well above a maximum level of the temperature possible to be reached under normal operation of the electric machine so as to close the outlet opening upon occurrence of arcing in the end-turns. A temperature dependent member is arranged in the air flow through the outlet opening to obtain such closing.

Abstract: A cooling unit of a drive motor includes: a fixing member installed on an inner wall surface of a motor housing and configured to fix a stator core of the drive motor, wherein the fixing member has a ring shape, includes a flow path formed therein in order to allow a cooling medium to flow, and includes a cooling medium inlet and a cooling medium outlet formed to be connected to the flow path, the flow path includes a first path connecting the cooling medium inlet and the cooling medium outlet to each other at one side and a second path connecting the cooling medium inlet and the cooling medium outlet to each other at another side, and the first and second paths have different flow cross sections and are connected to each other.

Abstract: A cooling unit of a drive motor includes: a fixing member installed on an inner wall surface of a motor housing and configured to fix a stator core of the drive motor, wherein the fixing member has a ring shape, includes a flow path formed therein in order to allow a cooling medium to flow, and includes a cooling medium inlet and a cooling medium outlet formed to be connected to the flow path, the flow path includes a first path connecting the cooling medium inlet and the cooling medium outlet to each other at one side and a second path connecting the cooling medium inlet and the cooling medium outlet to each other at another side, and the first and second paths have different flow cross sections and are connected to each other.