Abstract: A stator assembly and stator for a motor is provided that directly installs in a conductor slot a slot wedge having a width approximately the same as the width of the conductor slot. The slot wedge is limited in three directions, circumferential, radial, and axial, by means of cooperation between a slot wedge pressing ring, a conductor, and a sidewall of the conductor slot, and at the same time, the slot wedge is capable of preventing the conductor from falling out of the conductor slot. In addition, in the stator assembly for a motor disclosed, when the slot wedge is installed, the slot wedge may not only be inserted and installed in the conductor slot along the axial direction, but may also be inserted and installed in the conductor slot along the radial direction, and thus, the installation mode is flexible, which may improve the installation efficiency.

Abstract: A stator of an electrical machine, more particularly an electric motor of a motor vehicle, comprising: a laminated stator core, which has a number of stator teeth and is provided with a rotating field winding, which is arranged on the stator teeth and comprises a plurality of phases, the phases of the rotating field winding being formed from a continuously wound winding wire; and a connecting device having a number of U-shaped sockets corresponding to the number of phases, said sockets being provided for each holding one insulation displacement contact as a point of connection of the winding wire to phase terminals on a stator end face, each socket having two vertical U legs and a contact slot arranged therebetween for receiving the winding wire, one of the two vertical U legs of the socket being longer in an axial direction than the other vertical U leg in each case.

Abstract: A multiplayer neutral bus that includes a plurality of conductive layers and a plurality of bushings is provided. At least a portion of the conductive layers are spaced apart from each other and form separate electrical flow paths. The conductive layers and bushings are arranged so that each bushing is electrically coupled to each of the other bushings. A method of installing the neutral bus is provided.

Abstract: The disclosure relates to an electrical machine for a drive system of an electrically driven aircraft and its winding system. In particular, the disclosure relates to an interconnection unit for interconnecting the windings of the winding system. For electrically connecting winding arrangements of the winding system, the interconnection unit has a connection arrangement with large number of contact points which are configured and arranged on the interconnection unit such that these contact points of the interconnection unit may be connected to contact points of the winding arrangements to be contact-connected. The connection arrangement furthermore has a large number of electrical connection sections, wherein a respective connection section connects two of the contact points to one another. This interconnection unit may be contact-connected by way of its contact points to corresponding contact points of the winding arrangements, so that a desired winding system may be constructed in a simple manner.

Abstract: An end shield for an electric machine is provided. The end shield includes a collar extending between a housing of the electric machine and an end coil. The collar includes one or more spray apertures for directing a fluid onto the end coil.

Abstract: A segmented stator for a generator, for a wind turbine is provided. The stator includes a plurality of teeth and slots for coil windings, wherein the teeth extend from a yoke of the stator in a radial direction of the stator. The stator includes at least a first stator segment having a first end-surface in a circumferential direction of the stator and a second stator segment having a second end-surface in the circumferential direction of the stator, wherein the first and second end-surfaces are arranged adjacent to each other to form the stator. The first end-surface includes first protrusions protruding the circumferential direction of the stator and first recesses therebetween, the first protrusions forming first teeth extending from the yoke of the stator in the radial direction of the stator.

Abstract: Embodiments of the present disclosure relate to a wiring apparatus for a motor and a corresponding motor. The wiring apparatus comprises an annular member and a conductor. The annular member has a first side adjacent to the motor and a second side opposite to the first side. The conductor is embedded in the annular member and comprises a plurality of joints coupled to each other via a conductive bar. The annular member comprises a first group of holes and a second group of holes. The group of holes each extend from the first side to the plurality of joints and the second group of holes arranged opposite to the first set of holes and each extends from the second side to the plurality of joints. The wiring apparatus according to embodiments of the present disclosure has a simple and compact structure, which greatly improves the efficiency of wiring.

Abstract: An example system includes a dynamo-electric machine. The dynamo-electric machine includes a rotor that is cylindrical and that is configured for rotation and a stator that is arranged relative to the rotor. The stator has a stepped configuration that defines a first diameter for the stator and a second diameter for the stator. The first diameter is greater than the second diameter. Zones of the stator at the first diameter hold direct-axis (D-axis) windings and zones of the stator at the second diameter hold quadrature axis (Q-axis) windings. An airgap between the rotor and the Q-axis windings is greater than an airgap between the rotor and the D-axis windings.

Abstract: A winding assembly for a stator has a plurality of bridges each including an arcuate center section extending circumferentially over an end surface of a core at a first axial level relative thereto, first and second necks contiguous with respective first and second ends of the center section and extending therefrom axially away from the end surface, and first and second blocks contiguous with the respective necks and connected to the respective terminals of a pair of conductors at a second axial level farther from the end surface than the first axial level.

Abstract: A dynamoelectric rotary machine includes a stator, which has a winding system arranged in grooves disposed between teeth of a magnetically conductive body and a winding head on the end faces of the stator in each case. A rotor with a cage ring is arranged rotatably about an axis and during operation of the dynamoelectric rotary machine is in electromagnetic interaction in a motor-driven or generator-driven manner with the winding system of the stator arranged in the grooves by way of an air gap. Comb-type elements are disposed on the end faces of the stator. The comb-type elements assume an extensive intermediate space between the winding system projecting from the end faces of the stator, so that tonal noises which are produced during operation of such an electric machine are at least reduced.

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: An electric machine for converting between electrical and rotary mechanical energy includes a rotor journaled to rotate about an axis of rotation, and a stationary stator mounted adjacent to the rotor. The stator has a ferromagnetic backiron with a surface facing the rotor across a magnetic airgap and having windings applied in a winding pattern formed directly onto the stator backiron and adhered to its surface with a pre-applied tacky adhesive. The windings magnetically exert torque upon the rotor across the magnetic armature airgap in response to electric power applied to the windings. The rotor has permanent magnets that generate magnetic flux across the airgap and through the windings. The windings are comprised of pre-bundled multiple individually insulated conductor strands that are electrically connected in parallel but are electrically insulated from each other along their lengths inside said magnetic armature airgap.

Abstract: A generator stator end winding coil support assembly is presented. The assembly includes a bracket rigidly secured to a core flange plate and a brace clamped between a backup plate and the bracket by studs. The brace connects to an inner support ring. An elastic layer is disposed around the brace. Sleeves are disposed in apertures of the brace and enclose the studs. The sleeves set up a gap at interfaces between the brace and the bracket and between the brace and the backup plate that defines a compression of the elastic layer. The compression enables the brace to be movable relative to the bracket rigidly secured to the core flange plate for flexibly supporting the end winding coils. Flexibility and stiffness of the support is controllable by adjusting clamping force of the studs and selection of the elastic layer based on load conditions during operation.

Abstract: A device for driving a compressor of a vaporous fluid, in particular an electric motor. The device includes a rotor and a stator having a stator core, arranged extending along a common longitudinal axis. A carrier element, which is formed having at least one receptacle element for a plug housing for accommodating at least one plug connector and also at least one clamping element for fixing the carrier element on the stator core as a coherent unit and one-piece component, is arranged pressing against a first end face of the stator aligned in an axial direction. The at least one clamping element is arranged on a side of the carrier element aligned in the axial direction and facing toward the stator core and having an inner side pressing against an outer side of an outer wall of the stator core, centering the carrier element on the stator core.

Abstract: A coil includes a plurality of segment coils. Ends of two corresponding segment coils are electrically connected together via a coupling member or by being fitted together. Each of the plurality of segment coils includes a conductor-exposed portion located close to a connection portion between the corresponding segment coils and to be brought into contact with a probe of a resistance measurement apparatus. When the coil is manufactured, the ends of the plurality of segment coils are electrically connected to the ends of other corresponding segment coils, and electric resistances of connection portions between the ends are measured for each layer of the ends of the segment coils.

Abstract: A stator core, a coil, and a receiving member are included. The coil is attached to the stator core and secured by an impregnant and includes a coil end extending from an end face of the stator core in an axial direction outward in the axial direction. The receiving member having an annular shape is fixed to the end face of the stator core so as to be disposed on a farther outer side than the coil end in a radial direction of the stator core. The receiving member has an outer diameter wa smaller than an outer diameter of the stator core and has a height ha along the axial direction smaller than a height of the coil end.

Abstract: A method includes fabricating a core, wherein the core comprises a chemically soluble first polymer, forming a body around the core, wherein the body comprises a second polymer, and etching away the core to reveal a cooling channel extending through the body.

Abstract: A rotary electric machine is installed such that a central axis of a rotating shaft is horizontal, and coolant suction apertures are formed at positions on a cylindrical portion of a frame that are vertically above first and second coil ends, and strip-shaped insulating papers are inserted such that a thickness direction is in a radial direction between radially adjacent conductor portions of portions of the conductor wire that constitute the first and second coil ends, and are disposed so as to extend circumferentially across positions that are vertically below the coolant suction apertures inside the first and second coil ends.

Abstract: A plurality of bus rings, which are arranged at bus ring maintaining portions, include coil connecting portions, which are protruded in an outer direction in a shaft direction of a stator core with respect to the bus ring maintaining portions, and terminals of coils of a stator are bent in an outer direction in a diameter direction of the stator core in a state where end surfaces of wall portions of bobbins are used as base points, and are connected to the coil connecting portions of the bus rings, and the end surfaces of the wall portions are protruded in an outer direction in a shaft direction of the stator core with respect to end surfaces of the bus rings, and are positioned in an inner direction in a shaft direction of the stator core with respect to end surfaces of the coil connecting portions of the bus rings.

Abstract: The present invention provides a stator arrangement for an electric three-phase generator, comprising a plurality of stator teeth, comprising a contacting device which is arranged on an end portion of the stator teeth, comprising a continuously wound winding wire which is wound in each case about individual stator teeth in order to form stator tooth windings and portions of which are arranged on the contacting device between the individual stator teeth, comprising a connecting element, which is arranged on the contacting device and designed to electrically connect portions of the winding wire arranged on the contacting device in order to form a star point. The present invention further provides an electric three-phase generator and a method for producing a stator arrangement.

Abstract: The coil ends in a rotating electric machine are to be made smaller in size. A stator coil 60 inserted into a slot 420 in a stator of a rotating electric machine is formed with segment coils 28 connected to one another. In the stator coil 60, the segment coils 28 each include an insulating coated portion coated with an insulating coating, and a slit 900 or a recess is formed in the insulating coated portion of each of the segment coils 28 at a coil end 140. The slit 900 or the recess is preferably formed between a diagonal conductor portion 28D and a conductor-end straight portion 28E of each segment coil 28.

Abstract: An apparatus for cooling a motor of a hybrid vehicle includes a support ring that is disposed between a motor casing and a motor and has a shape that encloses the motor. A water jacket is formed in the support ring and circulates cooling water and an oil jacket is formed in a support ring and circulates oil. Further, oil is discharged from the oil jacket is sprayed onto the motor to enable the oil to be used to cool the motor and to enable cooling water to be used to cool the motor. Accordingly, the performance of cooling the motor is enhanced.

Abstract: A stator of a brushless motor includes: a stator core; a coil that is formed by winding a conducting wire around the stator core; a connecting terminal that is electrically connected to an end portion of the coil; and a terminal fixing base that has an electrical insulation property, is attached to an end portion of the stator core on one side in an axial direction thereof, and fixes the connecting terminal. The connecting terminal includes a fixing portion that is fixed to the terminal fixing base, an outward projecting portion that extends from the fixing portion toward outside in a radial direction than the stator core, and a joining portion that overlaps with the outward projecting portion in the axial direction and is positioned outside the stator core in the radial direction. The joining portion is opened outward in the radial direction.

Abstract: A method of fabricating a dynamoelectric machine utilizing multi-turn coils includes manufacturing a multi-turn coil having turn and ground insulation and installation of the coil into the stator core of the machine. The loop regions of the coil have no ground insulation during installation and the ground insulation at the loop regions is completed after installation of the coil.

Abstract: An insulator for an armature has holes and guide portions. The holes are penetrated by pins. The pins are connected to one ends of corresponding coils, respectively. The guide portions respectively guide the jumper lines in a circumferential direction with respect to an axis.

Abstract: A generator connection ring support device includes a base, a first protruding member extending from the base, a second protruding member extending from the base substantially parallel to the first protruding member, a fastener hole extending through the base and the first protruding member, and a clamping hole extending through the base into the first slot. The clamping hole is configured to at least partly house a clamping element. The first and second protruding members define a first slot therebetween to receive a connection ring, each protruding member having a first end proximate the base and a second end distal the base, the first protruding member configured to be fastened to an end winding axial support at the distal end of the first protruding member, the first protruding member having a longitudinal axis, the fastener hole aligned with the longitudinal axis of the first protruding member.

Abstract: A motor is cooled with a coolant. The motor includes a rotor rotatable about an axis, a stator including a stator core and windings wound about the stator core, a housing enclosing at least a portion of the stator, and a resiliently deflectable spray ring extending circumferentially relative to the axis. The spray ring defines at least one orifice configured to direct coolant on the stator. The spray ring presents first and second arcuately spaced apart ends defining a gap therebetween.

Abstract: A stator of an electric motor is provided. The stator includes a plurality of segments, each of the segments including a tooth having a magnetically-permeable material, an electric coil surrounding the tooth, and at least one insulator. The stator also includes a plurality of connectors, each connector including first and second terminals, the first terminal adapted to be inserted into the at least one insulator and to couple to the electric coil of each of the plurality of segments and a circuit board coupled to input power lines and including apertures adapted to receive the second terminals of the plurality of connectors. The circuit board is coupled to the electric coils of each of the plurality of segments via when the second terminals are received in the apertures.

Abstract: An assembly and a method for supporting generator stator end winding coils are presented. The assembly includes an outer support circumferentially disposed on outer side of bottom end winding coils and inner braces disposed on inner side of top end winding coils and circumferentially spaced apart from each other. At least one inner brace is disposed along an axial direction of the top end winding coils. Studs are radially oriented and threaded into the inner braces from the outer support. The studs are tensioned and retightenable to a required clamping force for supporting the end winding coils. Filler layers are disposed between the top end wind coils and bottom end wind coils for supporting the clamping force.

Abstract: A side winding motor stator includes a plurality of stator structures, a plurality of winding structures and a plurality of winding rolls. The stator structures are assembled to form a stator module. Each of the stator structures includes a stator tooth and an insulated frame. The stator tooth is configured into the insulated frame. The insulated frame has a gap. The winding structures, each of which has a plurality of lateral slots, are engaged through the gap. The winding rolls are engaged in the lateral slots.

Abstract: A bus bar extended end portion of a bus bar that projects from a main body of a bus bar module and a coil conductor extended end portion extend in the same direction, and are disposed adjacent to each other. The respective distal ends of the coil conductor extended end portion and the bus bar extended end portion are welded to each other. The coil conductor extended end portion and the bus bar extended end portion are also fixed to each other at a position away from the weld.

Abstract: A switched reluctance motor include: a stator; a case in which the stator is accommodated; a rotor disposed inward of the stator in the radial direction of the switched reluctance motor; and a holding member fixed to the case. The holding member is configured to hold the stator with the stator spaced apart from an inner peripheral surface of the case. The holding member includes a holding portion and a fixed portion. The holding portion is configured to hold the stator from the outside in the radial direction. The holding portion is spaced apart from the inner peripheral surface of the case. The fixed portion is fixed to the case.

Abstract: A rotary electric machine stator includes a stator core including a plurality of teeth, a coil wound around the teeth, a power wire being drawn out from the coil, and a retainer member that presses the coil end against the stator core. The retainer member includes a pressing portion disposed on an end surface in an axis direction of the coil end, leg portions extending from respective end portions on opposite sides of the pressing portion toward respective attachment portions provided at the stator core, and attachment ends provided at the respective leg portions and fixed to the respective attachment portions, and the power wire is drawn out from between the leg portions on the opposite sides of the pressing portion.

Abstract: The present disclosure relates to a stator assembly for an electrical machine, and more in particular relates to a support element utilized within the stator assembly in order to improve its performance. The support element allows the thermal expansion of round connection arms while detuning the Eigen-frequency and reducing the amplitude of the vibrations.

Abstract: A rotating electric machine comprising at least one end flange carrying a bearing, and a housing onto which the end flange is attached, said housing being cooled by a liquid cooling circuit and having at least two connectors communicating with the cooling circuit. The two connectors allow the supply and return of cooling liquid to and from the flange when the flange is configured to be cooled by a flow of the cooling liquid.

Abstract: Systems and methods for securing coils of magnet wire to a support core in a linear motor that is used, for example, in an ESP. A hollow member such as a cylindrical metal tube is provided as a support core which is adapted to receive a mover of the linear motor. Coils of magnet wire are positioned at the exterior of the support core (e.g., wound around the core). An outer layer of shrink-wrap material is placed around the support core and coils and is heated, causing it to shrink and conform to the coils and the support core. The shrink-wrap material provides pressure against the coils which holds them securely against the support core. This assembly is then positioned within a stator housing and secured to form the stator for the linear motor.

Abstract: Provided is a rotating electric machine capable of improving heat dissipation from each of busbars to achieve a higher output. The rotating electric machine includes: a stator core (8); a frame (3); coil portions; a plurality of busbars (18, 19, 20) arranged on one end surface side of the stator core (8), which are to be electrically connected to the coil portions to distribute electric power to the coil portions; a holder (17); and a plate (24) having one end portion facing at least one of the plurality of busbars (18, 19, 20) and another end portion exposed externally from the holder (17) to be held in contact with an outer circumferential surface of a jacket (4). The plate (24) guides heat of the plurality of busbars (18, 19, 20) from the one end portion to the another end portion.

Abstract: A rotor has a rotor core with protruding fingers defining slots for conductors and support blocks at the axial ends of the fingers fixed by screws. The fingers have holes for housing the screws. The method for repairing the rotor includes removing the screws and support blocks, drilling the holes to increase the diameter thereof, providing plugs into the holes.

Abstract: An electric machine for a vehicle may include a stator, a rotor, and a coolant channel assembly. The stator may include a core defining a cavity and windings disposed within and partially protruding out of the cavity. The rotor may be sized for disposal within the cavity adjacent the windings. The coolant channel assembly may include a channel wound about the partially protruding windings such that the channel and windings are in thermal communication with one another. The coolant channel may define a circular or rectangular cross-section. The coolant channel may define fins therein to induce turbulence into coolant flowing therethrough. The coolant channel and the windings may be arranged such that the coolant channel assembly directly contacts the windings. The coolant channel assembly may be wound such that a portion of the coolant channel assembly is partially disposed between the plurality of base portions.

Abstract: An electric motor assembly including a housing, an electric motor supported in a motor compartment of the housing, an encoder operatively coupled to the electric motor and supported in an encoder compartment of the housing, and a heat sink surrounding at least a portion of the encoder, the heat sink in thermal contact with an end cap of the housing at least partially defining the encoder compartment, whereby the heat sink is adapted to absorb heat from the encoder and conduct heat to the end cap.

Abstract: The present disclosure relates to a ring for a rotor of an electric machine as a support for a retaining ring and for cooling coils of the rotor. It is an object of the invention to provide measures for cooling coils of a rotor of an electric machine. Disclosed is a ring for an electric machine, the ring is connected between a retaining ring and coils wound around a rotor, whereas the ring is fabricated from a non-conductive material.

Abstract: Electric motors are disclosed. The motors are preferably for use in an automated vehicle, although any one or more of a variety of motor uses are suitable. The motors include lift, turntable, and locomotion motors.

Abstract: A method for sealing fluid cooled conduits in-situ for a generator is provided. The fluid or liquid cooled conduits are located external to a stator of the generator and substantially outward of stator bars. The method includes draining coolant from the fluid cooled conduits, and drying interior surfaces of the fluid cooled conduits. In inserting step inserts a borescope and a sealant applicator through an opening in one of the fluid cooled conduits. A locating step locates a brazed joint in the fluid cooled conduit, and a positioning step positions the borescope and the sealant applicator near the brazed joint. An applying step applies a sealant to the inside of the fluid cooled conduit at the brazed joint A viewing step may be used to view the brazed joint with the borescope to confirm that the applying step has been successful.

Abstract: Disclosed are a hairpin connecting device and a hairpin winding motor including the same. An exemplary embodiment of the present invention may provide a hairpin connecting device including: a cover part shaped like a circular loop fastened to a leg side of a stator core; and a plurality of connection caps arranged inside the cover part in a circumference direction and configured to electrically connect connected ends of respective hairpins exposed to the leg side.

Abstract: A stator for an electric motor for use at very high temperatures of up to 550° C. is provided, comprising a stator winding with an axis and with several winding wire ends which are passed out at a front end of the stator winding. The stator further comprises a stator winding interconnection with several ring conductors which are arranged at the front end of the stator winding coaxially to same and are axially spaced apart from each other. The ring conductors serve the electrical contacting of the winding wire ends. It is provided that an electrically insulating distance ring is respectively provided between axially successive ring conductors, wherein the ring conductors and the distance rings are alternately stacked.

Abstract: Electrically insulating material so foldable as to form an interphase insulator so configured as to be inserted in the slots of the stator or the rotor of an electric machine to prevent separate coils inserted in the same slot to be in direct contact with one another and to prevent the coil heads of different coils to be in direct contact is described herein. The interphase insulator may be so folded that the coil heads are properly insulated from one another.

Abstract: An electrical machine is provided. The electrical machine includes a stator having at least one winding, and a mechanical assembly acting on the winding for providing a radial force at the winding for controlling a stiffness of the winding.

Abstract: An electric submersible pump motor can include a housing; and a hermetically sealed cavity defined at least in part by the housing that includes at least one material susceptible to hydrolysis, and a polymeric material that includes epitaxial co-crystals of perfluoroalkoxy (PFA) and polytetrafluoroethylene (PTFE). Various other apparatuses, systems, methods, etc., are also disclosed.

Abstract: The present invention relates to a stator arrangement for an electric machine, comprising a stator laminate stack, comprising a multiplicity of stator windings, comprising a contact-making device which has at least one contact conductor, which is designed to electrically connect at least two stator windings to one another, wherein a respective contact conductor has at least one connecting lug for electrically coupling an external connection unit to the contact-making device and at least one hook for receiving a winding wire end of a stator winding connected electrically in each case to the contact conductor. The present invention relates to an electric machine comprising such a stator arrangement.

Abstract: A cooling device for cooling an air-permeable winding braid of an electrical machine is provided. The cooling device includes a baffle and a fan, which is arranged for blowing a stream of cooling air substantially perpendicularly onto a first surface portion of one side of the wind braid, wherein, in the region of a second surface portion of the side of the winding braid, arranged alongside the first surface portion, the baffle is arranged substantially parallel to and that a distance from the surface of the second surface portion such that a partial stream of the stream of cooling air is formed in the channel that is formed by the baffle and the second surface portion, and so, on the side of the winding braid that is opposite from the first-mentioned side, the other partial stream of the stream of cooling air, penetrating the winding braid, flows away from the winding braid without any return flow.