Abstract: An electrical machine may include a comprise a rotor, a stator, a coolant distributor chamber and a coolant collector chamber. The rotor may be rotated about an axis of rotation that defines an axial direction of the electrical machine. The stator may comprise a plurality of stator windings. The coolant collector chamber may be axially arranged at a distance from the coolant distributor chamber. The coolant distributor chamber may communicate fluidically with the coolant collector chamber by way of least one cooling channel through which a coolant can flow. The at least one cooling channel and the at least one stator winding may be embedded in a plastic mass consisting of an electrically insulating plastic for thermal coupling to the coolant.

Abstract: A flat-angled coil having a three-dimensional shape for maximizing a space factor according to the present invention comprises a unit coil comprising multiple layers which are provided to surround the peripheries of teeth of a core provided on an electric motor and laminated along the longitudinal direction of the teeth of the core so as to be integrally connected to each other continuously. The unit coil is formed such that at least a part of an adjacent portion thereof, which is adjacent to another unit coil provided in the same slot formed between the surrounded teeth of the core and the teeth of an adjacent core, is non-parallel with the side surfaces of the surrounded teeth of the core.

Abstract: A vibration actuator that cooperates with a coil and a magnet to vibrate a movable body with respect to a stationary body, including: the stationary body including the coil and a core around which the coil is wound; a shaft part; and the movable body including the magnet, the movable body being movably supported by the stationary body via the shaft part, wherein the core is disposed along an axial direction of the shaft part, and includes a core-side magnetic pole to be excited by energization to the coil, the magnet includes a magnet-side magnetic pole disposed so as to face the core-side magnetic pole with a gap therebetween, and the vibration actuator further includes a spring part elastically supporting the movable body with respect to the stationary body, linearly movably in the axial direction in a reciprocating manner, and rotationally movably about an axis in a reciprocating manner.

Abstract: A multi-rotor electric machine having a stator, a first rotor magnetically coupled to the stator and a second rotor magnetically coupled to the stator is disclosed. A method of operating the electric machine comprises driving a gear via a first face of the gear using the first rotor and driving the gear via a second face of the gear using the second rotor.

Abstract: A method, apparatus and components thereof enable selective or differentiated manipulation of at least one of a plurality of particles located in a region of space via magnetic field generation and variation.

Abstract: An apparatus for self-generating power with two magnets at two ends and a wireless switch using same are provides, and which belong to the field for self-generating power. The apparatus for self-generating power with two magnets at two ends of the present disclosure includes a coil assembly and a permanent magnet assembly. The permanent magnet assembly includes a left permanent magnet, a right permanent magnet and a soft magnetic frame, wherein the coil assembly includes a coil and a soft magnetic plate, and the soft magnetic plate is arranged between the left permanent magnet and the right permanent magnet in an up-down rotation manner.

Abstract: An apparatus for self-generating power and a wireless switch applying same are provided. The apparatus includes a coil assembly and a permanent magnet assembly. In an initial state, left and right ends of a soft magnetic plate come into contact with a first permanent magnet and a second upper soft magnetic plate respectively to form a first closed magnetic circuit, when the soft magnetic plate is rotated relative to the permanent magnet assembly, the left and the ends of the soft magnetic plate come into contact with a first upper soft magnetic plate and a second permanent magnet respectively to form a second closed magnetic circuit, and a direction of a magnetic line of force passing through the soft magnetic plate in the first closed magnetic circuit is opposite to that of a magnetic line of force passing through the soft magnetic plate in the second closed magnetic circuit.

Abstract: A superconducting magnet device including a plurality of superconducting magnet coils; a structural element mechanically and thermally linked to respective magnet coils to retain them in respective relative positions; and a cooling station thermally connected to a cryogenic refrigerator and to the structural element. A thermally conductive path, which passes through the structural element, is established between the cryogenic refrigerator and the superconducting magnet coils through the structural element.

Abstract: A superconductor bulk magnet magnetizing method providing a more homogenous trapped magnetic field includes: placing the bulk magnet inside a charger bore of an electrical charger magnet; placing a field correction unit inside a superconductor bore of the bulk magnet; applying an electrical current (I0) to the charger magnet, to generate an externally applied magnetic field, wherein a temperature Tbulk of the bulk magnet exceeds a bulk magnet critical temperature Tc; applying an auxiliary electrical current (I1, . . . ) to the field correction unit, thus generating an auxiliary magnetic field applied to the bulk magnet from within the superconductor bore, wherein Tbulk>Tc; lowering Tbulk below Tc; turning off the electrical current at the charger magnet, wherein Tbulk<Tc, and turning off the auxiliary electrical current at the field correction unit, wherein Tbulk<Tc; and removing the bulk magnet from the charger bore while Tbulk<Tc.

Abstract: The invention relates to an engagement relays (20) for an electric machine which preferably serves as a starter device (10) for engaging a pinion, wherein the engagement relay (20) has a contact device (65) for electrically connecting electrical contacts (120, 121) having a switching axis (67) which can be actuated for the purpose of electrical connection, having a thrust motor (60) which serves to shift the switching axis (67) and the thrust motor (60) has a movable part (57) which serves to activate the switching axis (67), wherein the movable part (57) is connected to a driver (85), wherein a stop part (84) can move relative to the movable part (57) of the thrust motor (60) in a state of rest of the engagement relay (20) there is a gap(s) between the stop part (84) and the driver (85), wherein after the switching of the engagement relay (20) a contact device (65) is activated and as a result a switch of the circuit of the starter motor (23) is closed, wherein a movable part (57) of a thrust motor (60) of t

Abstract: A solid-state circuit breaker comprises a breaker housing and an air gap driving mechanism that is a permanent magnet based. The air gap driving mechanism includes a pair of opposing contacts, a first permanent magnet to generate a static magnetic field and a coil actuator to generate a dynamic magnetic field. The first permanent magnet and the coil actuator are positioned relative to each other such that the dynamic magnetic field generated by the coil actuator can either enhance or cancel the static magnetic field of the first permanent magnet. Hence a combination of the static magnetic field from the first permanent magnet and the dynamic magnetic field from the coil actuator can either drive the pair of opposing contacts open or drive the pair of opposing contacts close.

Abstract: A switched reluctance machine exhibiting reduced noise and vibration, the machine comprising at least one rotor arranged to rotate about a central axis, the at least one rotor comprising a set of rotor poles arranged about the central axis; at least one stator positioned concentric to and radially outward from both the central axis and the at least one rotor, the at least one stator having an outer surface and an outer surface active zone; a housing having a sleeve positioned only radially outward from the stator outer surface active zone; at least one housing endplate coupled to an end of said housing; and wherein said stator has no direct connection to said housing.

Abstract: Contactor for an electric vehicle, with at least one fixed contact element and a movable contact element which, in a disconnection position, is spaced from the at least one fixed contact element in order to interrupt an electrical connection of the two contact elements, and which, in a closed position, is in electrically conductive contact with the at least one fixed contact element in order to create an electrical connection of the two contact elements, and with a switch actuator, associated with the movable contact element, which is designed to move the movable contact element into the disconnection position or into the closed position.

Abstract: An apparatus for magnetic annealing one or more workpieces, and a method of operating the apparatus, are described. The apparatus includes: a workpiece holder configured to support one or more workpieces, wherein the one or more workpieces having at least one substantially planar surface; an optional workpiece heating system configured to elevate the one or more workpieces to an anneal temperature; and a magnet assembly having a first magnet and a second magnet, the first and second magnets defining a gap between opposing poles of each magnet, wherein the magnet assembly is arranged to generate a magnetic field substantially perpendicular to the planar surface of the one or more workpieces.

Abstract: A superconductor magnetic field effect transistor. The superconductor magnetic field effect transistor may include a sheet of a superconducting material; and a solenoid. The sheet may be substantially flat, and the solenoid may include a plurality of turns, each of the turns being substantially parallel to the sheet. The superconducting material may be a type-II superconducting material.

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: A quench protection system for a superconducting machine, such as a superconducting generator having a plurality of series-arranged superconducting coils, includes at least one switch heater electrically coupled to each of the superconducting coils. A quench protection switch is provided in series with the coils, wherein each switch heater is in thermal contact with the quench protection switch. A heater network is configured in parallel with the quench protection switch and is in thermal contact with each of the coils. A quench of any one of the coils triggers a quench of the quench protection switch, wherein the heater network then triggers a quench of all of the remaining coils.

Abstract: A demagnetization method for a multilayer shielding apparatus is provided. In the demagnetization method, the demagnetization is realized on the basis of a demagnetization coil system. The demagnetization coil system includes a plurality of turns of demagnetization coils (2), a plurality of connection wires and a power supply module. The multilayer shielding apparatus includes at least two layers of shielding bodies (1); all the layers of shielding bodies (1) are sleeved layer by layer from inside to outside; a plurality of turns of demagnetization coils (2) are wound on each layer of shielding bodies (1) at intervals; and one half of each turn of demagnetization coils (2) is located inside the wound shielding bodies (1), and the other half is located outside the wound shielding bodies (1). Each demagnetization coil (2) is connected to the power supply module through the corresponding connection wire.

Abstract: A bent conductor segment (1a, 1b, 1c) for a stator winding of a stator of an electric machine is formed from a bent metal wire and has at least one first straight section (10a, 10b, 10c) with a first free end (11a, 11b, 11c) and a second free end (13a, 13b, 13c). One of the free ends (11a, 11b, 11c, 13a, 13b, 13c) of the conductor segment (1a, 1b, 1c) comprises a hard solder (2a, 2b, 2c) cohesively connected to said free end (11a, 11b, 11c, 13a, 13b, 13c).

Abstract: A linear vibration motor is provided, comprising a housing, a spring part, a vibrator and a stator, the housing having a chamber, the stator, the vibrator and the spring part being provided in the chamber, the vibrator comprising a counterweight part and a magnet connected together, the stator comprising a pole core and a coil, the pole core being connected to the housing, the coil being wound around the pole core, the housing being configured to be magnetically conductive, the vibrator being suspended relative to the stator by the spring part, the housing comprising a top part and an opposed bottom part, and the vibrator being configured to vibrate along a connecting line between the top part and the bottom part.