Abstract: Each of permanent magnets includes a magnet body formed across the radial direction of a rotor core, and a pair of magnet end parts bending toward the outer peripheral side of the magnet body and extending respectively from both ends of the magnet body in the peripheral direction toward the outer edge of the rotor core. Magnetization directions of the magnet end parts and a magnetic pole center line intersect with each other on the outer peripheral side of the magnet body. The inclination angle of each magnetization direction of the magnet end parts with respect to the magnetic pole center line is greater than the inclination angle of a magnetization direction of the magnet body with respect to the magnetic pole center line.

Abstract: A blower (2) comprising: (a) a rotor (6) including: (i) a magnet (12) and (ii) a shaft (16) including a recess on an end of the shaft (16); (b) a stator (20) that at least partially extends within the rotor (6); and (c) a compliant member (26); wherein the compliant member (26) extends into the recess and the compliant member (26) is compliant so that the compliant member (26) allows the shaft (16) to move.

Abstract: A single-phase brushless motor includes a stator and a rotor rotatable with respect to the stator. The rotor includes a number of permanent magnetic poles. The stator includes a stator core and a winding wound on the stator core. The stator core includes an outer annular portion, an inner annular portion, and connecting portions connecting the inner and outer annular portions. The winding is wound around the connecting portions. The rotor is received in the inner annular portion. The inner annular portion and the rotor form a substantially uniform air gap. A recess is formed in an inner surface of a part of the inner annular portion between each pair of adjacent connecting portions. A center of each recess deviates from a center line of symmetry of the corresponding pair of connecting portions.

Abstract: Systems and methods for protecting motor lead from debris and fluid contamination. In one embodiment, detachable, flexible lead wires within an ESP motor are covered by protective sleeves that are sealed against the end connectors of the leads. The end connectors are coupled to corresponding terminals in an epoxy fixture of the motor and a motor head in a manner that provides a seal between them. The sealed sleeve and end connectors prevent debris and contaminants in the fluid within the motor from reaching the conductive elements of the motor leads, thereby preventing accumulations of debris and contaminants that could otherwise cause electrical faults.

Abstract: A rotary electric machine has a machine casing and a terminal box fitted to the casing, the terminal box having a base part, the latter defining at least: a fixing zone for fixing at least one electronic module, this fixing zone having one or more support elements for receiving fasteners for fixing the module or modules, an electrical connection zone, the latter having at least one block of material for receiving at least one electrical connection element, the support element or elements and the block or blocks of material being molded as a single piece with the base part.

Abstract: A three phase stator configured with phases that are U-phase, V-phase, and W-phase. The stator is configured such that a bus bar portion includes a joint that is formed at an end and is joined to a terminal portion of a different one of the coils. A connecting portion is formed between the joint portion and the winding portion. In the coils, a first coil and a second coil serve as the two coils joined to each other by the joint portion of the bus bar portion of the first coil and the terminal portion of the second coil, and ends of the terminal portions of middle coils are the coils disposed between the first coil and the second coil are located at a height closer to the stator core than the connecting portion of the first coil in a direction of a central axis of the stator core.

Abstract: In some examples, a motor assembly kit includes a magnet, a coil, a bearing, and a flat assembly. The flat assembly includes a base structure, a first plurality of components, and a second plurality of components. The first plurality of components are removable from the flat assembly to construct a magnet support to support the magnet above the base structure. The second plurality of components are removable from the flat assembly to construct a coil cradle to support the coil above the base structure.

Abstract: A rotating electric machine, in which a cross conductors of a stator connect slot conductors so as to stride N+1 slots at coil ends on one side and stride N?1 slots at coil ends on another side, with N representing a number of slots per pole, a stator winding includes a plurality of slot conductor groups each made up with a plurality of slot conductors corresponding to a single phase, the plurality of slot conductors in each slot conductor group are inserted at a predetermined number Ns of successive slots forming a continuous range along a circumference of the stator core so that the slot conductors in the slot conductor group take successive slot positions and successive layer positions, Ns=NSPP+NL when NSPP represents a number of slots per pole per phase and a number of layers is expressed as 2×NL.

Abstract: A generator is provided having a first array of magnets and a second array of magnets. The first array is typically disposed in a first elongated Halbach configuration and the second array of magnets is disposed in a second configuration. The first and second arrays are configured to manipulate a net flux field to form a figure eight flux field between the first and second arrays. At least one coil disposed between the first and second arrays, such that relative movement of the first and second arrays with respect to the first coil generates an electric current.

Abstract: The present invention discloses an apparatus that includes a motor, flywheel, transmission, and generator. The motor converts an input energy into mechanical energy to rotate an output shaft coupled to a shaft of a flywheel. The design characteristics of the flywheel provide substantially uniform rotational speed to its shaft when the flywheel rotates. The rotating shaft of the flywheel connects to an input shaft of a transmission that includes a gear train that transfers the rotational speed of the flywheel to an output shaft of the transmission. The output shaft of the transmission drives an input shaft of a generator that converts the rotational speed to an output energy. After an initial start period, the output energy is sufficient to sustain mechanical operation of the apparatus, and provide power to external devices.

Abstract: A generator includes a plurality of magnets defining one of a rotor and a stator, a conductor including a core and a coil, the conductor defining the other of the rotor and the stator, and a shaft to which the stator is fixable. The core has a width inwardly narrowed from an outer edge toward an inner edge along a longitudinal direction of the core.

Abstract: A motor stator device with simple coil-winding structure is disclosed. The motor stator device includes an insulating base comprising an outer ring base, an inner ring base and a connection base, the outer ring base and the inner ring base alternatively forming outer ring openings, inner ring openings, outer ring sinks and inner ring pillars, the connection base being provided to be wound with a metal coil; a plurality of stator segments being positioned on the insulating base; and a plurality of segment connectors being positioned on the outer ring sinks between the insulating base and the stator segments and having a base part and an extension part opposite to the base part, the extension part being integrally extended from the base part and toward the motor rotor to get close to the inner ring pillar next to the motor rotor, so as to decrease the cogging torque.

Abstract: A magnetic drive device may comprise a stator comprising a plurality of windings for generating a first number of magnetic pole pairs and a rotor comprising a plurality of permanent magnets for generating a second number of magnetic pole pairs that differs from the first number of magnetic pole pairs. The magnetic drive device may further comprise a plurality of free-spinning interpole elements disposed within an air gap between the stator and the rotor. The interpole elements may produce a magnetomotive force and harmonically couple the magnetic pole pairs of the stator with the magnet pole pairs of the rotor.

Abstract: In the rotor of the present invention, each magnet has an inward part adjoining the rotor core and an outward part positioned outward of the inward part in a radial direction of the rotor core. The outward has a facing surface which faces a stator and a pair of side surfaces which extend from two end parts of the facing surface in a circumferential direction toward the inward part. The inward part has a pair of overhanging parts which overhangs outward in the circumferential direction with respect to the pair of side surfaces of the outward part. Each locking projection of the rotor core passes between overhanging parts of two adjoining magnets and projects outward in the radial direction to engage with the overhanging parts.

Abstract: A rotary electric machine may include a rotor that includes a laminated core arranged on a rotor shaft, wherein the rotor has at least one end-winding cover that encloses the laminated core in the axial direction of the rotor shaft, the end-winding cover has at least one inner face facing the laminated core, and a balancing ring is concentrically arranged around the rotor shaft on the inner face of the end-winding cover.

Abstract: A linear rotary mechanism includes: a pair of elongated guide rails in parallel to each other: a linear motor having a tubular primary side slidably disposed on the guide rails and a shaft-shaped secondary side coaxially extending into an internal hole of the tubular primary side, the shaft-shaped secondary side being axially linearly reciprocally movable along the tubular primary side; and a rotary motor fixedly disposed on the guide rails and connected with one end of the shaft-shaped secondary side. Accordingly, the rotary motor is linearly reciprocally movable along the tubular primary side in synchronism with the shaft-shaped secondary side and the guide rails.

Abstract: The invention relates to a laminated core, preferably a stator laminated core or a rotor laminated core (2), of an electric machine, in particular an electric fuel pump of a motor vehicle. The laminated core comprises slots (6), each of which has a slot insulation (7), and winding wires of at least one electric winding (10), said wires running in the slots (6). A plastic encapsulation (17) encases the laminated core together with the winding wires which run in the slots (6) at least in some regions. The plastic encapsulation (17) and the slot insulation (7) each consist of a thermoplastic, and the plastic of the slot insulation (7) has a melting point which is equal to, similar to, or lower than the melting point of the plastic of the plastic encapsulation (17) such that the encapsulation process causes the slot insulation (7) to melt, thereby bonding the slot insulation (7) to the plastic encapsulation (17). The invention further relates to a method for producing a laminated core and to an electric machine.

Abstract: A rotor assembly comprises a number of rotor segments forming a rotor structure and a central structure connected to the rotor structure and at least partially arranged between at least two of the rotor segments, for example surrounded by the rotor structure. A wind turbine generator comprising a stator assembly and said rotor assembly and a wind turbine comprising such a generator are also provided.

Abstract: A rotary electric machine, in particular an electric motor, has a winding, an electronic control device, and an electrically conductive shielding plate arranged between the control device and the winding. A connection device which includes at least one coupling element for electrically connecting the control device to one or more lines and a mass element provided for connecting to an electric mass potential. In order to improve the machine with respect to electromagnetic interference, the shielding plate is electrically conductively connected to the mass element by way of a sheet metal tongue via a first electric pressure-contact.

Abstract: A fan bearing cup connection structure includes a bearing cup, a bottom board and a connection member. The bearing cup has a receiving space, a connected section and a shaft hole. The shaft hole is formed at a top end of the bearing cup in communication with the receiving space. The connected section is disposed on outer circumference of the other end of the bearing cup opposite to the shaft hole. The bottom board has an opening. The connected section of the bearing cup is disposed in the opening. The connection member is connected between the bearing cup and the bottom board by means of injection molding. By means of the connection member, the bearing cup and the bottom board can be more securely connected with each other to greatly enhance the concentricity of the bearing cup and the bottom board.