Abstract: A stator of a polyphase motor in which in-phase coils are connected in parallel includes an annular core back, teeth extending radially from the core back and arranged circumferentially, a slot between two adjacent teeth, conducting wires respectively wound around the teeth to define the coils, and first and second connectors to which ends of each of the in-phase coils are connected, respectively. The conducting wire includes one or two jumper wires between each coil and the first connector or the second connector, and at least one jumper wire extends in an identical circumferential direction from the first connector toward the second connector with respect to all the in-phase coils.

Abstract: An insulation member for a stator assembly includes a first portion configured to couple to a first stator tooth and a second portion movably coupled to the first portion. The insulation member has a first configuration and a second configuration. The second portion is configured to move relative to the first portion when the insulation member moves between the first configuration and the second configuration. The second portion is configured to extend adjacent a second stator tooth when the first portion is coupled to the first stator tooth and the insulation member is in the second configuration.

Abstract: A magnetic pole includes a core, winding frames, and sheet-like insulators. The winding frames are provided to both ends, in a direction along the central axis, of the core, and have thin portions and projections. The thin portions and the projections extend in a direction along the central axis. The insulators are provided on both sides in the circumferential direction of a tooth portion. A part of each insulator is held by being sandwiched between the projection and the thin portion provided to each winding frame.

Abstract: An electric motor includes a stator unit, insulators, windings and insulating films. In the stator unit, a plurality of stators including respective iron cores each made of a magnetic body are arranged annularly. The insulators are provided at ends of the iron cores in an axial direction of the stator unit. The windings are wound around the insulators. The insulating films insulate the iron cores and the windings from each other. The insulating films are fixed between the iron cores and the insulators.

Abstract: The present disclosure provides a resolver including a stator core, an insulation cover for covering and insulating the stator core, an upper protection cover coupled to an upper portion of the insulation cover to cover and protect upper portions of coils wound around the stator core, a lower protection cover coupled to a lower portion of the insulation cover to cover and protect lower portions of the coils, a hook configured to extend from the upper protection cover in the downward direction, and a hook-catching portion formed at the insulation cover such that the lower end portion of the hook is hooked thereon in the upward direction.

Abstract: This rotating electric machine rotor has a rotor coil composed of; a lower coil field wound around the outer circumference of a winding drum portion of a bobbin; and a mountain-wound coil field wound around the outer circumference of the lower coil field. A cross point in the mountain-wound coil field and a cross point in the lower coil field are shifted from each other in the circumferential direction. Thus, it becomes possible to shift the cross point positions without changing the thickness of the winding drum portion of the bobbin and without using a tape or the like.

Abstract: A stator coil that is wound by concentrated winding and installed in a slot of a stator includes a winding part in which a conductor is wound pitch by pitch around a tooth of the stator and connection terminals which extend from both ends of the winding part. The winding part includes a plurality of unit winding subparts of a rectangular annular shape, a unit winding subpart including a pair of first straight-line segments, a pair of second straight-line segments, and curved corner segments which join the first straight-line segments and the second straight-line segments. In one of the pair of first straight-line segments, incline segments where the conductor is shifted by one pitch toward a winding axis direction are formed. In at least one of the unit winding subparts, a part of an incline segment is made by a part of each of the curved corner segments.

Abstract: The invention relates to a protection device for use in an electrical circuit of an electric machine, particularly an electric motor, having a holding device which is designed to receive an hold power supply devices for feeding the electrical current, the holding device being made of a first material with a first melting temperature T1, and temperature protection device, which is designed to protect the electrical circuit from an overtemperature and which is made of a second material with a second melting temperature T2, wherein the first material and the second material are selected, and/or the temperature protection device is arranged, in such a manner that the electrical circuit is automatically interrupted when at least one of the melting temperatures T1, T2 is reached, wherein the ratio of the first melting temperature T1 to the second melting temperature T2 is in range of greater than 1.2 to equal to 1.50. The invention also relates to an electrical drive arrangement having such a protection device.

Abstract: An external centrifugal fan and drive end frame for use in an air cooled alternator are provided. Also provided is a vented pulley.

Abstract: A linear motor heat dissipation structure including multiple teeth arranged linearly at predetermined intervals each with coil wound around rectangular tube-shaped bobbin, and heat dissipation member provided between adjacent coils that dissipates heat generated coils by transmitting the heat to an external section. Heat dissipation member is sandwiched by bowed sections of coils that are curved outwards within edges of rectangular tube-shaped bobbin due to elastic force of coils. Accordingly, even when there are component tolerances and assembly tolerances, those tolerances are absorbed by the elastic deformation of the bowed section of coils such that the variance in the contact state between coil and heat dissipation member is made smaller so that stable and high heat dissipation performance is achieved.

Abstract: A stator includes: plural core configuration sections each including plural yoke configuration sections that configure a ring shaped yoke and are segmented in a yoke circumferential direction and plural teeth sections that project from the respective yoke configuration sections along a yoke radial direction, with the plural yoke configuration sections and the plural teeth sections integrated together; plural coil wires that are wound onto the respective teeth sections to configure plural winding portions; and plural insulators that each include plural insulator portions that are integrated to each of the respective core configuration sections and insulate between the teeth sections and the winding portions, and a connection portion that connects together the plural insulator portions.

Abstract: The invention relates to a stator of an electric motor, having teeth distributed in the circumferential direction and extending in the radial direction and grooves respectively provided between the teeth, wherein respectively adjacent teeth each form a groove opening at the radial outer edge sections of said teeth, and the radial outer edge sections of the teeth each have a projection extending into the groove opening in the circumferential direction and each forming a free contact surface directed radially inward.

Abstract: An apparatus and a method for winding turns of coils of pole members (11), in which a pole member (11) comprises at least a flange portion (13b) connected to a body portion (13a) for receiving turns of coils C during winding. The apparatus comprises a conductor dispenser member (50?) for dispensing a conductor W for forming turns of coils C by movement of the conductor dispenser member (50?) with respect to the pole member being wound. The apparatus is also provided with a pole member holder (10) comprising a plurality of seats (15) suitable for receiving a flange portion (13b) of the pole member (11), a plurality of base members (18) of the seats (15) for engaging a first end (13b?) of a pole member (11) with a pushing force and locking means (20) associated with each seat (15) for engaging and referencing a second end (13b?) of the pole members (11) with respect to the conductor dispenser member (50?). The invention also concerns a pole member holder (10) as described in the foregoing.

Abstract: The present disclosure relates to a driving motor for environmentally friendly vehicles. The driving motor for the vehicles includes: a stator core; a bobbin assembled to the stator core; a coil part wound on the bobbin; a coil lead-out portion configured such that an end portion of the coil part drawn from the bobbin is formed to have a curved structure; and a terminal bonded with a bonding portion formed in the coil lead-out portion.

Abstract: A stator assembly, a motor having the same, and a method of manufacturing a stator assembly are provided. The stator assembly includes a stator core, coils wound around the stator core, and a stator body including a first power terminal, a neutral terminal configured to connect the coils and connected to the first power terminal, and a bearing, wherein each of a connection terminal of the first power terminal and a hole of the bearing is exposed externally, thereby providing an advantage for simplifying an assembly process by reduction of the number of components and simplification of a structure. Further, a useless space is removed by the above process, thereby providing an advantage for reducing the size of a product and reducing the weight thereof.

Abstract: A dual-voltage brushless motor (30) includes a casing, a motor shaft (20) rotatably coupled to the casing, a rotor fixedly connected to the motor shaft (20), and a stator (28) configured to face the motor. The rotor contains a plurality of permanent magnets, and the stator (28) includes a first set of winding and a second set of winding. The first winding is electrically isolated from the second winding. The dual-voltage brushless motor (30) is adapted to be driven when the first set of winding receives a first control signal or when the second set of winding receives a second control signal. By configuring two separate motor controllers of the motor, the motor (30) can be operated under different power supplies such as AC power supply and DC power supply. As a result the application of the motor is greatly extended.

Abstract: A stator for a rotating electric machine facilitates the assembly of the stator coils and restricts its length in the axial direction. The stator includes a stator iron core having a plurality of teeth and a plurality of stator coils each being wound on one of the teeth. The stator coils include terminal stator coils, each having a crossover wire and a lead wire. Each crossover wire is connected to one of the stator coils of the same phase and each lead wire being is connected to an object other than the stator coils of the same phase. Each end of the crossover wires and the lead wires is disposed at a different level; a first level being the closest to the stator iron core. At least one of the lead wires of the terminal stator coils is disposed at least one level apart within the range of levels.

Abstract: An electric motor, in particular a pump motor, made up of a permanent magnet rotor, a wound stator, having a stator laminate package, insulating elements and a stator winding, a motor housing made of plastic material and a component carrying a rotor bearing, in particular a pump head. It is an object of the invention to provide a generic motor with a reliable and economically feasible fastening of the stator to the motor housing, wherein heat expansion cracks are avoided and noise transmissions can be reduced.

Abstract: A claw pole rotor comprises a shaft, first and second polar wheels fastened to the shaft, a winding provided with a winding insulator and surrounded by the first and second polar wheels, a commutator provided with at least one commutator ring, a fan fastened to the first polar wheel and disposed between the winding and the at least one commutator ring, at least one end-of-winding wire being linked to one of the at least one commutator rings, passing through a radial cavity provided between the fan and the first polar wheel. The winding insulator comprises a clip retaining the one end-of-winding wire. The retaining clip is fastened to the winding insulator and comprising crimping means intended to be disposed in the radial cavity to crimp the part of the end-of-winding wire extending into the radial cavity.

Abstract: A method is for manufacturing a stator of a rotary electric machine. The method includes; forming a stator core; forming each of cassette coils by concentrically winding rectangular wire for the specified number of turns, each of the cassette coils being formed by applying a shift amount with respect to an axis in a winding direction to a wire shape of at least one of the turns before being attached to the teeth; attaching each of the cassette coils to each of teeth while canceling the shift amount; and forming a wire coil of the rotary electric machine by connecting a winding terminal of one of the cassette coils to a winding terminal of another of the cassette coils.

Abstract: The present invention relates to a rotor for a rotating machine and more in particular, to a component of the rotor. The present invention generally relates to an improved cooling configuration of a rotating machine. Unlike generally known arrangements, the solution proposed herein does not guide coolant fluid to parts which require cooling. Instead, the heat generated from the losses in the rotor pole is transferred to parts having favourable characteristics for establishing heat exchange.

Abstract: An insulating device (10) of a rotor winding, which includes a device for positioning the insulator relative to a pole wheel including teeth and spaces between the teeth, which comprises at least two feet (102) on a surface (101) of the insulator that engages with a surface of the pole wheel, the feet each having at least two separate contacts among the following contacts: contact on a side surface of one tooth; contact on a side surface of an adjacent tooth; contact on an interstitial surface between one tooth and the adjacent tooth.

Abstract: A brushless motor includes a stator core having a plurality of tooth portions; a lower insulating bobbin connected to a lower face of the stator core, the lower insulating bobbin having a plurality of lower slot insulation portions each corresponding to a respective tooth portion; and an upper insulating bobbin connected to an upper face of the stator core, the upper insulating bobbin having a plurality of upper slot insulation portions each corresponding to a respective tooth portions such that the upper slot insulation portions, the tooth portions, and the lower slot insulation portions define a plurality of coil wound portions. The plurality of coil wound portions includes at least one group of coil wound portions with each group having first to sixth coil wound portions. All of the coil wound portions of all groups are wound by a single lead wire.

Abstract: An insulation bobbin includes a winding portion, an outer stopper portion and an inner stopper portion. The winding portion includes a body and two sidewalls respectively and perpendicularly connected to two first sides of the body. A length of a first side edge of each of the sidewalls is greater than a length of a second side edge, and a connecting edge of each of the sidewalls connects a first bottom edge and the second side edge. The outer stopper portion connects one of the second sides of the body and the first side edge of each of the sidewalls. The inner stopper portion connects the other one of the second sides of the body and the second side edge of each of the sidewalls. There is a height difference between the first bottom edge of each of the sidewalls and a second bottom edge of the inner stopper portion.

Abstract: A motor includes a stator and a rotor. The stator includes a stator core and a bobbin. The bobbin includes upper and lower bobbins covering the stator core from two axial ends. The upper and lower bobbins each include an end face and a side portion. The two end faces overlap two axial ends of the stator core. The side portions are aslant relative to the axial direction of the stator core. Ends of the upper and lower bobbins connected to the end faces form tight fit with the stator core, and the other ends away from the end faces form loose fit with the stator core.

Abstract: A brushless motor includes a printed circuit board having a plurality of locating holes therethrough; and an upper insulating bobbin including a plurality of locating bosses distributed along a circumference direction of an upper surface of the upper insulating bobbin. Each locating boss has a locating column projecting from a top surface thereof such that each locating column is inserted into a respective locating hole.

Abstract: A yoke includes an annular groove in which an exciting coil is stored, and a first through hole formed in the bottom of the annular groove. A terminal housing includes a boss portion fitted in the first through hole and a connecting concave portion located on the opposite side of the annular groove with respect to the boss portion. The boss portion includes a second through hole extending in a direction parallel to the center line of the first through hole. An external connecting terminal is buried in the terminal housing. The external includes a coil extraction hole continuing to the second through hole. The extraction end of the exciting coil is soldered to the terminal in a state in which the extraction end is passed through the second through hole and the coil extraction hole.

Abstract: An electric brushless DC motor is provided including an outer rotor assembly having a metallic rotor body, rotor magnets mounted within an inner surface of the rotor body, and a molded structure formed within the rotor body. The molded structure includes a main body formed on inner surface of the rotor body to securely cover and retain the rotor magnets on the inner surface of the rotor body, an axial fan formed at an end of the rotor body opposite the rotor magnets, and a sense magnet mount formed at approximately a radial center portion of the axial fan. Alternatively or additionally, the molded structure includes a radial member projecting inwardly from the main body towards a center of the outer rotor assembly, and a bearing support member having a substantially cylindrical shape in an axial direction of the outer rotor and supported by the at least one radial member.

Abstract: Insulator that forms an insulating layer on a surface of a plurality of stacked stator cores includes protruding part extending from an outer circumference of stator cores on a substantially same face as one end face of stator cores in a stacking direction. Protruding part includes hooks that fixedly holds connector having a plurality of connector terminals for feeding power from outside. Connector is fixedly held by hooks, winding is wound around each slot of stator cores via insulator, and connector terminals are fixedly press-fitted to connector. A tip of each of connector terminals on a side of winding is bent into a substantially L-shape, winding end in each phase of winding is directly tied to L-shaped tip of connector terminal and connected thereto by soldering.

Abstract: A coil for a rotary electric machine includes a plurality of electrically conductive wires defining a group of wires wrapped to define a plurality of turns. The coil further includes a pair of major sections and a compound outer surface along the pair of major sections. The compound outer surface has a first leg section and a second leg section with the first leg section and the second leg section at an angle to each other. A bonding material is positioned along portions of the pair of major sections to define the compound outer surface.

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: A rotor (1) of an electrical rotating machine, especially for an alternator or an alternator-starter of a motor vehicle, comprising two polar wheels (7, 8), an excitation winding provided with an insulator (15), and at least one magnetic assembly (13) placed between the two polar wheels which are each provided with teeth (9a, 9b), the insulator of an excitation winding comprising a plurality of petals (20), wherein at least one of the petals has a side recess (27) for allowing the passage of one of the magnetic assemblies (13) during the assembly of the two polar wheels (7, 8).

Abstract: An outer rotor motor includes a stator, an end cap for use with the stator, and a stator mount operable to facilitate mounting of the stator to a machine. The end cap includes wire-routing structure facilitating routing of the stator wiring. The structure includes a wire-routing trough that defines a wiring pathway though which the wiring is routed. The trough is positioned at least in part radially inside the core and includes a bottom located between the core margins. The trough further includes a side that is spaced radially inward from the core and projects at least in part axially relative to the bottom. The stator mount is radially located within the wiring pathway.

Abstract: An electrical machine includes a tubular rotor magnetised to have circumferential polar alternations, and a stator including a body that is traversed by a channel having an inner transverse section that substantially corresponds to the outer transverse section of the rotor, the body carrying a plurality of windings, the stator being surrounded by an outer ferromagnetic envelope, the body being extended by three, four or six radial projections made from an electrically insulating material having, in the transverse cross section, a longitudinal core for receiving a winding, the core being extended by a peripheral extension having an outer surface that matches the inner surface of the envelope and covers the wound area. A method for producing such an electrical machine is also provided.

Abstract: A coil is wound via an electrically insulating member within a slot of a stator core of an electromagnetic motor which is formed of a stator and a rotor. Groove portions are formed to oppose one another in respective opposing portions of a slot opening portion side of the electrically insulating member. An electrically insulating sheet is disposed by being inserted into the pair of groove portions.

Abstract: A rotor assembly (164) is provided for a switched reluctance motor (160) in which nonmetallic, nonconductive pins (5) pass through a stack (2) of magnetic laminate plates (3).

Abstract: A magnetic bearing, comprising: a magnetic base; at least three actuator bobbins mounted on the magnetic base; and magnetic sensors associated with the actuator bobbins. At least one magnetic system amidst the magnetic actuators and the magnetic sensors comprises together: a coil holder; a coil wound up around the coil holder; and a connector device integrated to the coil holder and designed for plugging at least one wire. Additionally disclosed is an apparatus comprising such a magnetic bearing and a method for manufacturing such a magnetic bearing.

Abstract: A connection ring arrangement, includes a plurality of conducting rings, and a support element which holds the plurality of conducting rings. The support element has a projection arrangement having two projections which are designed receive the conducting ring and which extend from said conducting ring. The projection arrangement has an open end and a closed end, which closed end receives the conducting ring. The distance between the projections is at least partially smaller than the diameter of the conducting ring and at least one projection is at least partially elastically formed in a direction transverse to the longitudinal direction of the projection. The projections are designed such that the conducting ring is inserted between the projections.

Abstract: In one aspect, the present invention provides implantable or insertable urological medical devices, which are adapted to deliver one or more urologically beneficial agents in pharmaceutically effective amounts. In one aspect, the invention provides medical devices in which urologically beneficial agents are delivered using a porous membrane.

Abstract: A stator includes a stator core and an insulator installed on an axial-direction end surface of the stator core. The stator core has a cylindrical part, a plurality of teeth, and a plurality of windings. The windings are wound around the teeth. Each winding has a first end and a second end. The insulator has a plurality winding grooves to support the second ends. Each winding groove has a first space and a second space. The first space includes an opening. The second space includes a tip part to catch the second end, and communicate with the first space via a bent part.

Abstract: A claw rotor (2) provided with an insulator (11) for a field coil (10) and a rotary electric machine equipped with such a rotor, the insulator comprising a plurality of projecting petals (121, 131) intended to engage with the inner inclined periphery of a claw (9). Each of the petals (121, 131) includes: a base (122, 132) solidly connected to an associated cheek (120, 130), side edges (123, 133), and an end (124, 134). The claw-pole rotor (2) is wherein each petal (121, 131) has a thickness (e) at the side edges (123, 133) which increases from the base (122, 132) to the end (124, 134).

Abstract: A stator core includes an inner ring core composed of a plurality of teeth arranged in the circumferential direction and a connection portion connecting inner circumferential portions of the plurality of teeth; and an outer ring core to be joined to an outer circumferential surface of the inner ring core. Slots of the stator core each have a circumferential direction width (a) on an inner circumference side smaller than a circumferential direction width (b) on an outer circumference side. A stator coil composed of conductive coils including a plurality of slot accommodated portions and a plurality of coil end portions connecting the slot accommodated portions is inserted and placed in the slots from an outer side in the radial direction of the inner ring core.

Abstract: First convexities and second convexities are formed in opposing first wall surfaces and second wall surfaces of lead wire end portion holding grooves, and in holding coil ends that are housed in the lead wire end portion holding grooves with the first convexities and the second convexities, the first convexities and the second convexities are formed at positions that are offset with respect to each other in a circumferential direction and one end portions of the coil ends of the same phase that are connection portions are drawn out towards an outer diameter side from between the first convexities and the second convexities.

Abstract: A rotating machine has a shaft rotatable about an axis, a rotor rotatable with the shaft, and a rotor end winding at an axial end of the rotor. A stator is spaced from the rotor and forms a gap therebetween. The stator comprises a stator winding. A fluid system directs fluid through to the stator. A baffle to diverts fluid away from the gap and toward the stator.

Abstract: A stator configured with an annular stator core, and a plurality of coils mounted on the stator core. The bus bar portion being connected to the terminal portion of a different one of the coils of the same phase. The coil is a multi-layer coil that is formed by winding the conductor in a plurality of layers in an inside-outside direction of loops in the winding portion, and that includes on inner and outer peripheral sides of a coil end portion of the coil a plurality of lane change portions formed by the conductor. The bus bar portion is embedded in a clearance between the lane change portions of the coil of a different phase placed between the coils of the same phase which are connected to each other.

Abstract: A power tool includes a motor having a stator assembly and a rotor pivotably arranged inside the stator. The stator assembly includes a lamination stack defining a plurality of poles; a plurality of field windings each arranged at at least two opposite poles of said plurality of poles and connected together around the stator assembly; and a plurality of conductive terminals longitudinally arranged along an outer surface of the lamination stack and electrically coupled to the plurality of field windings and a power source.

Abstract: A bobbin for use in a magnetic module is provided. The bobbin comprises a winding body, a first plate and a second plate. The winding body is disposed between the first plate and the second plate, and further comprises a first end, a second end and a through hole. The first end comprises a first buckling portion, and the through hole penetrates the first end and the second end. The first plate includes a second buckling portion and a first opening, while the second buckling portion is adapted to engage with the first buckling portion. The second plate includes a second opening, and the second plate is engaged with the second end of the winding body.

Abstract: A electrically insulating member, which covers a stator core, has a plurality of engagement claws, which extend in the axial direction of a rotary shaft, and a plurality of positioning projections, at positions in the circumferential direction differing from those of the engagement claws, which extend further than the engagement claws. A sensor board, on which a plurality of magnetic sensors are fixed in place, has engagement parts, which engage with the engagement claws, and positioning recesses, into which the positioning projections are inserted.

Abstract: Recesses and projections that extend in an axial direction are formed on an outer-circumferential surface of a molded resin body. The recesses are provided on portions where are extended outward from teeth having the winding and are on the outer circumferential surface. In addition, further recesses and projections that extend in a radial direction are formed on an axial-direction end surface of the molded resin body. The further recesses are provided on portions of the axial-direction end surface that are aligned in the axial direction with the winding.

Abstract: A rotor for a rotating electrical device includes: a rotor coil that is wound on each of the rotor salient poles; a retaining member that is supported by a rotor core; and an outer magnetic member. The retaining member has a beam bridged between the adjacent rotor salient poles and prevents the rotor coil from falling out. The outer magnetic member is provided in an end of the beam.