Abstract: A split-flow coolant system is provided. The split-flow coolant system may include a single inlet and multiple coolant distribution channels arranged inside a housing, or cooling plate, of the inverter. The coolant distribution channels may include a coolant chamber connected to the inlet and a coolant path running adjacent to various portions of the inverter. The coolant chamber splits into two separate coolant paths in the inverter housing, or cooling plate, that are then diverted to each of the motors. A first coolant path is diverted to the first motor where the coolant path is arranged to cool the first motor and a second coolant path is diverted to the second motor to cool the second motor. The separate coolant paths may connect to a common outlet at the end of the cooling path for the motors.

Abstract: The present invention relates to an electric motor, the electric motor including: a stator, which is composed of layered metal sheets, a motor support made of an electrically conductive material, a cable connection comprising an earth line cable, and at least one connecting and contacting element made of an electrically conductive material, wherein the connecting and contacting element is configured and arranged on the electric motor such that it provides an earth connection between the stator and the motor support or between the stator and the earth line cable of the cable connection, and wherein the stator and the motor support are fastened to one another independently of the connecting and contacting element.

Abstract: One embodiment is an untethered, handheld, kinesthetic, haptic device that produces torque using gyroscopic precession to eliminate the need for a grounded surface. In particular, one embodiment is a haptic device that includes: (a) an angular momentum generator apparatus; and (b) a torque generator apparatus coupled to the angular momentum generator apparatus; wherein: (i) the angular momentum generator apparatus is capable of generating a predetermined angular momentum; and (ii) the torque generator apparatus is capable of applying a torque to cause the angular momentum generator apparatus to rotate about a direction perpendicular to the direction of the angular momentum.

Abstract: A plurality of reinforcing ribs, which extend from a cover-side bearing in an outer radial direction, is formed at a portion of a cover, at which a reaction force generated in response to operation of an electric actuator is applied. The reinforcing ribs can improve strength of the portion of the cover, at which the reaction force is applied. Therefore, it is possible to avoid a damage, such as deformation, a crack, at the resin cover caused by the reaction force applied to the cover.

Abstract: An electromagnetic power generator device and a method thereof for using balanced electromagnetic forces to drive one or more flywheel rotor assemblies on a fixed shaft and generating large amount of electrical power are provided. The electromagnetic power generator device includes a non-rotating shaft attached to a support frame, at least one flywheel rotor assembly, and at least one input driver plate assembly which is coupled to the flywheel rotor assembly via the non-rotating shaft penetrating through a first centered hole of a bearing of the flywheel assembly and a second centered hole of the input driver plate assembly.

Abstract: A slip ring unit for an electrically excited rotor of a rotary dynamo-electric machine includes an electrical terminal which protrudes axially from an end face of the slip ring unit and having a contact point and a circumferential slip contact surface electrically connected to the electrical terminal. Disposed adjacent to the slip contact surface is an insulation element, with end plates axially retaining the circumferential slip contact surface and the insulation element. An electrically insulated support element is arranged on an end face of the slip ring unit and has a cross section which substantially matches a cross section of the slip ring unit. The support element axially surrounds the electrical terminal and radially supports the electrical terminal.

Abstract: A bus assembly is provided having a bus bar with first and second conductive layers extending along an insulator sheet interposed between the first and second conductive layers. The first and second conductive layers are partially aligned with respect to each other to form a first overlap region of the insulator sheet. The bus assembly includes a first set of arms having a set of diodes and a second set of arms having a set of switches. The bust bar includes a plurality of bus links coupling the plurality of arms to the bus bar forming a plurality of inverters. Each of bus links include a respective first bracket and a respective second bracket aligned with each other forming a second overlap region of the insulator sheet. The first bracket is electrically coupled to the first conductive layer and the second bracket is electrically coupled to the second conductive layer.

Abstract: There is provided a motor driving control device and a motor driving control method capable of quickly activating a motor. The motor driving control device comprises a motor driving unit, a control circuit unit and a position detector. The motor driving unit selectively energizes coils Lu, Lv, Lw of a plurality of phases of the motor. The control circuit unit outputs a driving control signal C1 to the motor driving unit to switch, in a predetermined order, an energization phase of the coils Lu, Lv, Lw of the plurality of phases to be energized by the motor driving unit. The position detector outputs a position signal corresponding to a position of a rotor of the motor.

Abstract: An axial gap type dynamo-electric machine (1) comprises: a stator (2) provided with a magnetic core (21) and an exciting coil (22); a rotor (3) provided with a plurality of permanent magnets (4) circumferentially arranged around a rotation center axis (AX), the rotor (3) being also provided with a disk-shaped base material (31) for supporting the permanent magnets, the rotor (3) being disposed at an axial distance from the stator (2); and affixation members (5) for affixing the permanent magnets (4) to the base material (31). The permanent magnets (4) are provided with front surfaces facing the stator (2), rear surfaces facing the base material, and engagement-receiving sections (412, 422, 432) formed at peripheral edges of the permanent magnets (4). The affixation members (5) include: engagement sections (512) engaging the engagement-receiving sections; and affixation sections (511) forming mechanical affixation structures relative to the base material.

Abstract: A thermionic energy converter includes an anode, a cathode spaced from the anode to define a gap therebetween and an operating environment of hydrogen wherein the anode and the cathode are disposed in the hydrogen operating environment so that molecular hydrogen is incorporated into the gap and the anode and the cathode are substantially exposed to the molecular hydrogen. Exposure of diamond samples to a hydrogen plasma reduces the resistance of the bulk diamond film. Hydrogen enhances electron transport through the bulk of the diamond and improves the thermionic emission current. Impregnation of a diamond electrode with hydrogen enhances bulk electron transport of the diamond due to hydrogen lying in the interstitial space between the carbon atoms. Hydrogen increases the bulk conductivity of diamonds films by interact with the diamond surface to form polarized C—H bonds reducing the electron affinity and in turn, reducing the work function.

Abstract: The present invention provides a power generator which can obtain efficient power generation by changing magnetic force acting on electromotive coils. The power generator is provided with a first permanent magnet member 1, a second permanent magnet member 2, and an electromotive coil member 3 arranged concentrically to have a telescoping structure and is configured so that power generation in the electromotive coil member 3 is induced by rotating the first permanent magnet member 1 or/and the second permanent magnet member 2. In the power generator, the first and second permanent magnet members 1 and 2 cooperate with each other to change the magnetic force and, thus, to obtain efficient power generation.

Abstract: It has been discovered that torque ripples can be reduced by adopting a shape in which: the width of a shoe connection formed in a stator of a permanent magnet motor is equal to or smaller than the thickness of each of core pieces constituting a stator core; and a relationship of 0.7?Wm/(Tm×Gm)?3.3 is satisfied, where Wm is the length of the long side of a flat plate-shaped permanent magnet embedded in a rotor, Tm is the length of the short side of the permanent magnet, and Gm is the maximum distance from the outer circumference of the rotor to the permanent magnet.

Abstract: A motor includes a shaft disposed along a central axis extending in an up-down direction, a rotor assembly mounted on the shaft, a stator radially facing the rotor assembly with a clearance therebetween, and a plurality of busbars electrically connected to the stator. The busbar includes a first busbar and a second busbar. The first busbar has an upper disposed portion that is disposed above the second busbar. The second busbar has a busbar cavity that is recessed downward at a position that overlaps with the upper disposed portion in an axial direction.

Abstract: Disclosed are a variable power motor and an intelligent controller therefor. The motor includes a rotor, a stator, a housing, stator windings and terminals. The stator windings are formed by embedding the same stator core into multiple series windings. Various series nodes of the stator windings, each serving as a power supply terminal with different power, are respectively led out individually. The various series windings of the stator respectively control, by means of the intelligent controller, the switching on and off of multiple switching switches. The soft-start and soft-stop of the motor can be realized, and a load is automatically tracked to regulate the power of the winding during operation, so as to obtain a power-saving effect.

Abstract: A computer controlled support and stabilization unit comprising of a vertical array of magnets for levitating a flywheel containing fluid, a computer controlled adjustable bearing support that can clamp and unclamp the rotating center shaft of a flywheel containing fluid between a plurality of bearings, a computer controlled adjustable magnetic lifting support for lifting the flywheel containing fluid to reduce the forces placed on the vertical array of magnets for levitating a flywheel containing fluid and reduce the forces placed on the plurality of bearings clamping the rotating center shaft of a flywheel containing fluid.

Abstract: Disclosed is an electric machine (10) comprising a pole housing (12) and a printed circuit board (14) for controlling the electric machine (10). The circuit board (14) is arranged on a flanged side (16) of the pole housing (12), and a protective wall (18) which protects the circuit board (14) from loose small parts is arranged between the circuit board (14) and the pole housing (12).

Abstract: Phase windings are configured radially inside first coil ends by connecting together tip portions of first terminals that are bent so as to extend outward from slots that are six slots apart, and radially outside the first coil ends by connecting together tip portions of second terminals that are bent so as to extend outward from slots that are five slots apart, and also connecting together tip portions of second terminals that are bent so as to extend outward from slots that are seven slots apart in modified positions of an inserted slot group, and by connecting together tip portions of second terminals that are bent so as to extend outward from slots that are six slots apart in regions other than the modified positions of the inserted slot group.

Abstract: A slip-ring arrangement for an electrical rotary machine has a rotor and a sliding-contact device which is arranged on the rotor and has a slip ring, and a sliding-contact element with which the slip ring can make electrical contact. Furthermore, a radial fan impeller with an intake device is arranged on the rotor, wherein the intake device is designed in such a way that, during operation of the radial fan impeller, a cooling fluid can be drawn into the radial fan impeller through the intake device along the sliding-contact device. Furthermore, the slip-ring arrangement has a spiral housing which is of spiral design and surrounds a radial circumference of the radial fan impeller.

Abstract: An electric motor includes a rotor and a stator including a stator core, a plurality of armature windings, a plurality of field windings, and a plurality of bonded magnets. The stator core has a plurality of teeth alternately defining field slots and armature slots along a circumferential direction, and a stator yoke magnetically coupling the plurality of teeth opposite the rotor. Each armature winding is wound around two of the teeth sandwiched between an adjacent pair of the armature slots. Each field winding is wound around two of the teeth sandwiched between an adjacent pair of the field slots. The magnets are individually located in the field slots while opposing the field windings in the radial direction. Each adjacent pair of the magnets along the circumferential direction respectively has an adjacent pair of pole surfaces, with the adjacent pair of pole surfaces having a same polarity.

Abstract: An electric generator may include a housing having a housing casing running around in a circumferential direction and front and rear side walls, a radially outer stator rotatably arranged on the housing about an axis of rotation, and a radially inner rotor arranged on the housing in a rotationally fixed manner. The generator may also have an axially outer impeller wheel arranged on an outer side of the front side wall and arranged in a rotationally fixed fashion on the rotor. The generator may further have a primary air inlet having inlet openings formed in the rear side wall, a secondary air inlet having secondary inlet openings formed in the housing casing, an air outlet having a plurality of outlet openings formed in the front side wall, a primary air path from the primary air inlet to the air outlet, and a secondary air path from the secondary air inlet to the air outlet.