Thu, 25 Aug 2016 08:00:00 EDTAn acoustic wave device of the present invention has a piezoelectric substrate, an excitation electrode arranged on the piezoelectric substrate, an electrode pad arranged on the piezoelectric substrate and electrically connected to the excitation electrode, and a cover arranged on the piezoelectric substrate so that a oscillation space is arranged between the cover and the excitation electrode. The cover has inside it a via conductor electrically connected to the electrode pad and is curved so that its surface facing the piezoelectric substrate approaches the excitation electrode side with respect to an upper surface of the piezoelectric substrate from a position of contact with the via conductor.
Thu, 25 Aug 2016 08:00:00 EDTAn energy collection system may collect and use the energy generated by an electric field. Collection fibers are suspended from a support system. The support system is electrically connected to a load by a connecting wire. The collection fibers may be made of any conducting material, but graphene, carbon and graphite are preferred. Diodes may be used to restrict the backflow or loss of energy.
Thu, 25 Aug 2016 08:00:00 EDTProvided is a highly reliable and compact electric water pump. A motor unit includes an axial gap motor having a stator and rotors. A partition formed with a nonmagnetic member is interposed between the motor unit and a pump unit. A torque generated by the motor unit is transmitted to the pump unit by a contactless magnetic coupling in an axial direction. The partition is formed to have a bottomed cylindrical shape. The motor unit and pump unit are provided with driving magnets and passive magnets respectively which are opposed to each other with a cylindrical part of the partition between them.
Thu, 25 Aug 2016 08:00:00 EDTThe current document is directed to various types of oscillating resonant modules (“ORMs”), including linear-resonant vibration modules, that can be incorporated in a wide variety of appliances, devices, and systems to provide vibrational forces. The vibrational forces are produced by back-and-forth oscillation of a weight or member along a path, generally a segment of a space curve. A controller controls each of one or more ORMs to produce driving oscillations according to a control curve or control pattern for the ORM that specifies the frequency of the driving oscillations with respect to time. The driving oscillations, in turn, elicit a desired vibration response in the device, appliance, or system in which the one or more ORMs are included. The desired vibration response is achieved by selecting and scaling control patterns in view of known resonance frequencies of the device, appliance, or system.
Thu, 25 Aug 2016 08:00:00 EDTAn electromagnetic generating transformer comprises one or more flux assembly having one or more magnetic field source having a positive pole and a negative pole and a magnetic field passing in a path between the positive pole and the negative pole and a conductor magnetically coupled with the one or more magnetic field source, the magnetic field source and the conductor being fixed relative to one another; a shunt is coupled with a motive source and configured to move the shunt into a primary position and a secondary position, wherein the magnitude of the magnetic field passing between the positive pole and the negative pole varies when the shunt is moved between the primary position and the secondary position.
Thu, 25 Aug 2016 08:00:00 EDTA first stator core and a second stator ore are configured by arranging core block pairs into an annular shape, the core block pairs being configured by stacking together core blocks so as to be spaced apart axially, each of the core blocks including a core back portion and one tooth, and a permanent magnet is configured so as to be divided into a plurality of magnet blocks that each include: a base portion; one shaft portion that protrudes radially inward from an inner circumferential surface of the base portion; and flange portions that protrude on two circumferential sides from a radially inner end portion of the shaft portion, the magnet blocks being held between the core block pairs such that the base portion and the shaft portion are positioned inside the core block pairs and such that the flange portions protrude circumferentially from the core block pairs.
Thu, 25 Aug 2016 08:00:00 EDTAn electric machine 100 is provided, which includes: a stator 10 including a concentrated-winding armature winding 14; an inner rotor 30; and an outer rotor 20, the outer rotor 20 having a plurality of circumferentially spaced magnetic path forming elements 21, the inner rotor 30 having a plurality of rotor teeth 32, which are arranged side by side in the circumferential direction, wound by induction coils 34 and field coils 35; and a rectifier circuit 36 configured to rectify induced current generated by each of induction coils to DC current.
Thu, 25 Aug 2016 08:00:00 EDTThe present disclosure is directed to a system and method for cooling or cleaning a slip ring assembly of a generator of a wind turbine. The slip ring assembly is at least partially enclosed in a slip ring compartment. In addition, the slip ring assembly includes an electrically conductive slip ring mounted to the rotatable shaft and a fixed conductive ring assembly having slip-ring contacting members mounted thereon. The conduit assembly is configured to direct fluid into the slip ring compartment so as to cool or clean the slip ring compartment. Further, the conduit assembly extends from a first end to a second end. More specifically, the first end is configured at or before an inlet of the generator assembly, whereas the second end is configured at the slip ring compartment.
Thu, 25 Aug 2016 08:00:00 EDTAn electric motor includes a rotor shaft, and the rotor shaft has a shaft-core oil passage and radial oil passages. The shaft-core oil passage includes an inner wall facing radially inward. The radial oil passages are provided toward a radial outer side of the rotor shaft from the shaft-core oil passage. The radial oil passages penetrate through the rotor shaft. The radial oil passages have corresponding one of first connection openings connected to the shaft-core oil passage, so that oil that is not discharged from the first connection openings to the radial oil passage is supplied to other supply destinations. A distance of the first connection openings from the shaft core is shorter than a distance, from the shaft core, of that part of the inner wall which is not provided with the first connection openings.
Thu, 25 Aug 2016 08:00:00 EDTA drive unit includes: an electric motor; a circuit case that houses an inverter therein and is installed on the electric motor; a first cooling flow passage that is provided, in contact with the inverter, in the circuit case and lets a cooling liquid flow therethrough; a second cooling flow passage that is provided in the electric motor and lets the cooling liquid flow therethrough in communication with the first cooling flow passage; and an open end that is provided on at least one end side of the first cooling flow passage so as to be capable of being opened to the outside of the flow passage for the cooling liquid when the circuit case is installed on the electric motor.
Thu, 25 Aug 2016 08:00:00 EDTA device for addition of motive force to a vehicle, with rotor-plate, rotor-arms, rotor permanent magnets, stator-plate, stator columns, stator electromagnets, and battery, cell, or other energy storage device. The device is retro-fittable on existing wheel assemblies, and installation coverts an internal combustion vehicle to a hybrid with electric propulsion.
Thu, 25 Aug 2016 08:00:00 EDTThe invention provides a way re-center a rotor's central longitudinal rotational axis with a desired system longitudinal axis. A pair of planar semicircular permanent magnets are pieced together to form a circle. The flux from each magnet is pointed in opposite directions that are both parallel with the rotational axis. A stationary shorted circular winding the plane of which is perpendicular to the system longitudinal axis and the center of curvature of the circular winding is positioned on the system longitudinal axis. Upon rotation of the rotor, when a transverse displacement of the rotational axis occurs relative to the system longitudinal axis, the winding will experience a time-varying magnetic flux such that an alternating current that is proportional to the displacement will flow in the winding. Such time-varying magnetic flux will provide a force that will bring the rotor back to its centered position about the desired axis.
Thu, 25 Aug 2016 08:00:00 EDTA motor according to one embodiment of the present invention comprises: a rotation shaft; a rotor part encompassing the rotation shaft; a stator part arranged to be spaced from the rotor part; and a housing for fixing the stator part, wherein the inner surface of the housing includes a plurality of projection units.
Thu, 25 Aug 2016 08:00:00 EDTElectric motor includes stator, rotor, a pair of bearings, outer-ring conducting part, and printed circuit board. Outer-ring conducting part electrically couples outer rings to each other that are included respectively in the pair of bearings. Printed circuit board includes drive circuit and an impedance element. Drive circuit includes ground line. Drive circuit controls an electric current that flows through stator winding. The impedance element is formed with at least not smaller than one pair of conductive patterns. One of the conductive patterns forming the impedance element is electrically coupled with outer-ring conducting part. The other of the conductive patterns forming the impedance element is electrically coupled with ground line included in drive circuit.
Thu, 25 Aug 2016 08:00:00 EDTA motor and a sealing member thereof are provided in the present invention. The motor includes a housing, a stator and a rotor. The stator is received in the housing. The rotor includes a shaft and a permanent magnet. The shaft is rotatably coupled to the housing, and one end of the shaft extends out of the housing through a shaft hole. A gap is formed between the shaft and the shaft hole. The permanent magnet is coupled with the shaft and spaced from the stator. A sealing member is arranged on the housing and surrounds the shaft hole. The sealing member includes a blocking portion abutting with a predetermined part of the rotor outside the housing. The blocking portion seals the gap. As such, dustproof and damp-proof functions of the motor are improved.
Thu, 25 Aug 2016 08:00:00 EDTAn electric motor storing device for a hybrid vehicle, the hybrid vehicle including an electric motor, the electric motor including a rotor shaft and an inner circumferential side rotational shaft disposed on an inner circumferential side of the rotor shaft in a manner to penetrate said rotor shaft, and a case configured to store the electric motor, the electric motor storing device includes: a support member for rotatably supporting the inner circumferential side rotational shaft and the rotor shaft; and an insulating section for insulating between the support member and the case.
Thu, 25 Aug 2016 08:00:00 EDTAn electronic control apparatus comprises a housing of synthetic resin, a cover of metallic material, fixed to the housing by a fastening bolt, and an electronic control section enclosed in an interspace formed between the housing and the cover. A conductive gasket is interposed between a joint surface of the housing and a joint surface of the cover, and arranged to ground the cover electrically through the conductive gasket, to relieve static electricity from the metallic cover to a ground or a main body of a vehicle.
Thu, 25 Aug 2016 08:00:00 EDTA stator includes a stator core having slots arranged in a circumferential direction thereof at a predetermined pitch and a stator coil comprised of phase windings. Each of the phase windings is configured with an electric conductor and an insulating coat covering the electric conductor. Each of the phase windings includes in-slot portions and turn portions connecting the in-slot portions. The turn portions of the phase windings include a plurality of types of turn portions having different circumferential lengths. For each of the phase windings, apex parts of the turn portions of the phase winding are arranged in pairs over the entire circumferential range of the stator coil. The apex parts of each of the pairs axially overlap each other. Each circumferentially-adjacent pair of the apex parts of the turn portions of all the phase windings are circumferentially offset from each other by a distance greater than the predetermined pitch.
Thu, 25 Aug 2016 08:00:00 EDTA stator includes an annular stator core having slots arranged in a circumferential direction thereof and a stator coil comprised of phase windings. Each of the phase windings includes in-slot portions, each of which is received in one of the slots of the stator core, and turn portions each of winch is located outside the slots to connect one pair of the in-slot portions. Each of the turn portions includes an apex part that is furthest in the turn portion from an axial end face of the stator core and extends in the circumferential direction of the stator core. There are circumferentially-adjacent pairs of the turn portions over the entire circumferential range of the stator coil. For each of the circumferentially-adjacent pairs of the turn portions, the apex parts of the circumferentially-adjacent pair of the turn portions overlap each other in an axial direction of the stator core.
Thu, 25 Aug 2016 08:00:00 EDTIn a rotating electric machine, a stator includes a stator core having slots formed therein and a stator coil comprised of phase windings each of which includes in-slot portions and turn portions. The turn portions of the phase windings together constitute a coil end part of the stator coil. Further, a cooling mechanism is provided to drop liquid coolant onto the coil end part. Moreover, the turn portions of the phase windings include long-pitch turn portions and short-pitch turn portions. In the coil end part, there are axially-overlapping pairs of the long-pitch and short-pitch turn portions over an entire circumferential range of the stator coil. For each axially-overlapping pair of the long-pitch and short-pitch turn portions, the short-pitch turn portion is located axially inside the long-pitch turn portion and faces the long-pitch turn portion through a void space formed therebetween over entire lengths of the long-pitch and short-pitch turn portions.
Thu, 25 Aug 2016 08:00:00 EDTA blower motor is provided for use in a machine. The motor includes a stator and a rotor rotatable about an axis. The stator includes a generally toroidal core, a first-main winding, and an auxiliary winding that is electrically out of phase with the first-main winding. The first-main winding and the auxiliary winding are both full pitch windings.
Thu, 25 Aug 2016 08:00:00 EDTA compressor (10), in particular a semi-hermetic or hermetic positive-displacement compressor for compressing NH3, said compressor having an at least partially NH3-cooled electric motor (12) comprising motor windings (24). The motor windings (24) have a conductor (26) made of copper and an ammonia-resistant coating (28). A method for producing a corresponding compressor.
Thu, 25 Aug 2016 08:00:00 EDTAn improved rotor assembly configured for magnets with differing lengths, and methods and systems for manufacturing the same. The rotor assembly may be created by selectively creating first and second tabs extending into apertures of lamination sheets. The first and second tabs may be selectively removed, depending on the different magnet lengths and the specific lamination sheet, according to one of a first finishing schedule and a second finishing schedule. The lamination sheets are stacked with any remaining first and second tabs, and other features, aligned.
Thu, 25 Aug 2016 08:00:00 EDTAn electric motor has an internal stator (21) and an external rotor (2). The external rotor (2) has a rotor housing (3) and a plurality of magnets (9) mounted therein and is adapted to rotate around a rotation axis (10); the magnets (9) are preferably bar magnets; the rotor housing (3) has an inner surface (7), a first end (5), and a second end (6) located opposite the first end (5) and the inner surface defines respective receiving surfaces (11) for reception of the magnets. each receiving surface features a channel depression (13) to receive a magnet (9). The magnets (9) are each fastened on a respective one of the receiving surfaces (11) with the aid of an adhesive mounting agent (36). A first bearing seat (14) for reception of a first bearing cage (15) is formed at the second end (6) of the rotor housing (3).
Thu, 25 Aug 2016 08:00:00 EDTA permanent magnet embedded rotor of BLDC motor, comprises: a rotor core (A), which is in a shape of cylinder and formed by stacked rotor sheets, having p pairs of permanent magnet grooves (C) which are bar-shaped and 2p heat-radiating through-holes (B); wherein the p pairs of permanent magnet grooves (C) and the 2p heat-radiating through-holes (B) are all provided inside the rotor core (A) in a direction of an center axle thereof, and evenly spaced around the center axle of the rotor core (A); each of the heat-radiating through-holes (B) is provided between two permanent magnet grooves (C); and p is an integer no less than 1; and p pairs of permanent magnets (D) which are bar-shaped, fixedly provided in the permanent magnet grooves (C), wherein each of the permanent magnets (D) has a trapezoid cross section, and p is an integer no less than 1.
Thu, 25 Aug 2016 08:00:00 EDTAn interior permanent magnet machine includes a wound stator, and a rotor core defining a plurality of pole cavities. Each of the pole cavities includes a cross section, perpendicular to a central axis of rotation, that defines a cross sectional shape having a centerline. The cross sectional shape of each of the pole cavities includes a radially inner barrier portion, a radially outer barrier portion, and a central portion. The centerline of the cross sectional shape of each of the radially outer barrier portion and the radially inner barrier portion, of each pole cavity, is defined by a generally arcuate segment. The centerline of the cross sectional shape of the central portion, of each pole cavity, is defined by a linear segment. One of a plurality of rare earth magnets, having no heavy rare earth elements, is disposed within the central portion of one of the plurality of pole cavities.
Thu, 25 Aug 2016 08:00:00 EDTA piezoelectric device including a substrate, at least two electrodes extending on the substrate, at least one piezoelectric strip extending on the substrate and on the electrodes, and at least one electrically-conductive strip extending at least on one of the electrodes and on the piezoelectric strip and in contact with the substrate on either side of the piezoelectric strip.
Thu, 25 Aug 2016 08:00:00 EDTExample implementations relate to a fan guard device. One example fan guard device includes a frame to receive a fan. The example fan guard device includes a plurality of snaps extending in a first direction from the frame. The snaps engage the fan. The fan guard device includes at least one flexible member extending in the first direction from the frame to engage a flange of the fan. The flexible member may compress and remain in contact with the flange. The amount of compression of the at least one flexible member may accommodate a range of flange thicknesses of the fan.
Thu, 25 Aug 2016 08:00:00 EDTProvided is a power generation apparatus, which includes an internal combustion engine, and a rotary electric machine disposed adjacent to the internal combustion engine in an axial direction. The rotary electric machine includes coils to which an electric current is supplied from an external power apparatus via an electric power supply cable. Terminal parts connected to the coils and connection terminals of the electric power supply cable are connected in a predetermined connection space that is formed in part of a lower block of an engine block of the internal combustion engine.
Thu, 25 Aug 2016 08:00:00 EDTIn an exemplary preferred embodiment of the present disclosure, a vibration motor comprises a base portion, a magnet, and a vibrator portion, a cover portion, and an elastic member. The base portion expands perpendicular to a vertical center axis. The magnet is a single member which is fixed to an upper side of the base portion in the vertical direction. The vibrator portion is disposed around the magnet and vibrates in a vertical direction. The cover portion covers upper and side portions of the magnet and the vibrator portion. The cover portion is fixed to the base portion. The elastic member is disposed between an upper inner surface of the cover portion and a top portion of the vibrator portion. The vibrator portion includes a coil portion and a mass portion. The coil portion faces the magnet in a radial direction. The mass portion is fixed to the coil portion. The magnet includes a plurality of magnetic pole pairs and a non-magnetic portion. The plurality of magnetic pole pairs are arranged in the vertical direction. Each of the plurality of magnetic pole pairs has two vertically adjacent magnetic poles having different polarity from each other. The non-magnetic portion is disposed between each of the plurality of magnetic pole pairs in the vertical direction. The polarity of two magnetic poles on both sides vertically adjacent to the non-magnetic portion is identical.
Thu, 18 Aug 2016 08:00:00 EDTA first closed enclosure defines a cavity having an inner dimension smaller than 5 mm. At least one second resiliently deformable closed enclosure is connected in fluid communication with the first enclosure. A fluid at more than 90% in the liquid state fills the first and second enclosures. A first portion of the first enclosure is in contact with a hot source of a temperature higher than the evaporation temperature of the fluid. A second portion of the first enclosure located between the first portion and the resiliently deformable closed enclosure is in contact with a cold source at a temperature lower than the condensation temperature of the fluid. An electromechanical transducer is coupled to a deformable membrane of the resiliently deformable closed enclosure.
Thu, 18 Aug 2016 08:00:00 EDTThe invention relates to a lifting system, comprising a piezoelectric actuator, a support, and a hydraulic stroke multiplier having an input and an output side, wherein with the input side of the hydraulic stroke multiplier said hydraulic stroke multiplier is tied to the piezoelectric actuator, and with the output side of the hydraulic stroke multiplier said hydraulic stroke multiplier is tied to the support. In the method for electrically testing an electronic component, the component is placed on the support of such a lifting system, and is lifted for positioning relative to a test contact. The vibration damper comprises such a lifting system. The machine assembly has a machine and such a vibration damper.
Thu, 18 Aug 2016 08:00:00 EDTA graphene sheet is provided. The graphene sheet includes a carbon lattice and a spatial distribution of defects in the carbon lattice. The spatial distribution of defects is configured to tailor the buckling properties of the graphene sheet.
Thu, 18 Aug 2016 08:00:00 EDTCylindrical outer and inner rotors coaxially supported so as to be rotatable, and a cylindrical stator interposed between the rotors are provided, and rotational torque is transmitted between the outer rotor and the inner rotor by interaction between: a plurality of magnets uniformly arranged on the inner circumference of the outer rotor; a plurality of magnets uniformly arranged on the outer circumference of the inner rotor; and a plurality of magnetic bodies juxtaposed at equal intervals in the circumferential direction of the stator. Rod-shaped magnetic bodies extending in the axial direction of the stator are used, and each magnetic body is placed in skew arrangement with a deviation amount in the circumferential direction corresponding to 1/12 to ¼ of the juxtaposition pitch in the circumferential direction between one axial end and the other axial end. Such arrangement can effectively reduce cogging torque, and realize stable power transmission under small torque fluctuation while ensuring high torque density.
Thu, 18 Aug 2016 08:00:00 EDTA linear motor includes a movable element and a stator. The stator includes a pair of back yokes provided opposing each other such as to flank the movable element along a direction perpendicular to the movable element's axis of travel, a plurality of main pole magnets provided spaced apart from each other and paralleling the axis of travel, on respective inside lateral surfaces of the pair of back yokes, and first and second interpole magnets provided, adjoining along said axis of travel, in each of intervals between adjoining couples of the main pole magnets.
Thu, 18 Aug 2016 08:00:00 EDTAn energy harvesting component for use in a portable electronic device includes a housing, a mass element within the housing, an energy transducer positioned inductively proximate the mass element, and a coupling between the mass element and the housing. In a first mode, the energy harvesting component may convert mechanical energy from agitation of the portable electronic device to electrical energy for use by the electronic device and, in a second mode, the energy harvesting component may induce movement of the mass element to provide haptic feedback.
Thu, 18 Aug 2016 08:00:00 EDTA drive system in the form of a torque motor, comprising a stator (1), a rotor (3) and exciter coils (2) on the stator and permanent magnets (4) on the rotor (3), the magnets being located radially opposite one another across an air gap such that electrical excitation of the exciter coils (2) creates magnetic fields extending across the gap and rotating the rotor (3) relative to the stator (1), characterized in that, with the drive system arranged/oriented for normal operation and with the rotor (3) located on the inside, a lower half of the stator (1) has a smaller number of exciter coils than an upper half and, with the stator (1) located on the inside, the upper half of the stator (1) has a smaller number of exciter coils than the upper [lower] half. (FIG. 1)
Thu, 18 Aug 2016 08:00:00 EDTA disc power generator comprises a first housing and a second housing. The first housing and the second housing are locked and fixed together to enclose a receiving space. The disc power generator further comprises a first magnet set and a second magnet set provided in the receiving space. A plane where the first magnet set is located is parallel to a plane where the second magnet set is located, and a unidirectional magnetic field is formed between the first magnet set and the second magnet set. An armature parallel to the plane where the first magnet set is located is provided between the first magnet set and the second magnet set. The armature comprises a board. On the board, with the board as the center, multiple coils arranged at equal intervals in a circumferential form on a same plane are fixed mounted. The coils are in a spiral form, the plane where the coils are located is parallel to the board. The multiple coils are electrically connected to each other through circuits on the board. The armature in the disc power generator is insusceptible to magnetic reluctance and rotates stably.
Thu, 18 Aug 2016 08:00:00 EDTA motor control center having one or more control modules is disclosed. Each control module has a cabinet for enclosing therein a first contact set and a second contact set forming rotatable electricity conducting switches or contacts from the bus bars of the motor control center to a circuit breaker in the control module. An operation handle, extending from the cabinet, is used to operate the control module between different states. The operation handle is coupled to an operating mechanism in the cabinet. The operation handle sequentially operates the first contact set to couple to the bus and power a test circuit, the second contact set to couple the first contact set to the circuit breaker, and lastly to switch on the circuit breaker.
Thu, 18 Aug 2016 08:00:00 EDTA rotor is formed with a flow path for supplying a cooling fluid. The flow path has a supply path extending inside the rotor, a plurality of branch paths branching off from the supply path, and return paths extending from the respective branch paths toward a base end side of the supply path. The branch paths are at positions distant from each other in a direction parallel to a rotational axis of the rotor.
Thu, 18 Aug 2016 08:00:00 EDTA magnet 34 for the rotating shaft (first magnet, second magnet) is installed on the extended portion of the rotating shaft 33b in the gear housing 41, and Hall ICs 65a to 65c for the rotating shaft (first sensor, second sensor) are formed on the control board 60 inside the gear housing 41 so as to face the magnet 34 for the rotating shaft. The Hall ICs 65a to 65c for the rotating shaft are adapted to detect the rotation position of the rotating shaft 33b relative to the stator 32, that is, the rotation position of the rotor 33 relative to the stator 32, and the Hall ICs 65a to 65c for the rotating shaft are adapted to detect the rotation number of the rotating shaft 33b.
Thu, 18 Aug 2016 08:00:00 EDTAn axial brushless DC motor comprising a stator, a rotor including a magnet, a sleeve bushing extending through the stator and including a pair of opposed distal collars, a motor shaft extends through the sleeve bushing, and a pair of opposed bearings are seated in the respective pair of collars and mount the shaft and a rotor for rotation relative to the sleeve bushing and the stator. The bearings are adapted for thrust, radial support/self-alignment, and angular adjustment of the motor shaft. In one embodiment, a stator overmold member includes a central tube that defines the sleeve bushing and includes a stator shorting ring, in one embodiment, a metal pole piece is seated in a cup-shaped magnet with a rim and the magnetic flux travels through the rim of the magnet and through a magnetic flux sensor.
Thu, 18 Aug 2016 08:00:00 EDTAn energy storage system comprises a housing and a flywheel having a drive shaft portion attached to a cylindrical ferromagnetic rotor portion. The drive shaft portion defines a substantially vertical axis about which the rotor portion is mounted for rotation.
Thu, 18 Aug 2016 08:00:00 EDTElectric 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.
Thu, 18 Aug 2016 08:00:00 EDTA power-supply-lead retaining part includes a pair of legs extending toward a bearing through hole, a pair of first locking portions provided on the pair of legs and locked to the edge portion of the bearing through hole, and a pair of second locking portions locked to the edge portion of the sensor substrate on both sides of a notch.
Thu, 18 Aug 2016 08:00:00 EDTElectric 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.
Thu, 18 Aug 2016 08:00:00 EDTThe present invention relates to electrical machines having a shaft rotatably supported in a housing and having a labyrinth seal with labyrinth contours engaging into one another for sealing the housing with respect to the shaft. The invention in this respect in particular relates to the labyrinth seal for sealing the housing of a three-phase machine with respect to a shaft rotatable relative to the housing. In accordance with the invention, at least one side of the labyrinth seal is at least provided with an insulating coating in the region of the labyrinth contours.
Thu, 18 Aug 2016 08:00:00 EDTIn order to prevent insulation failure of a motor and a robot, the motor includes a stator core, plural bobbins mounted on the stator core and provided with flange parts, and a winding wound around each of the bobbins, in which a space of a gap between plural flange parts adjacent to each other is smaller than a diameter of the winding.
Thu, 18 Aug 2016 08:00:00 EDTIn a three-phase AC motor, when 2P represents the number of poles of a rotor and N represents the number of slots for inserting windings of a stator therethrough, the division of N by P is not an integer. When X represents the quotient of the division of N by 2P, the stator includes a first annular winding portion made of one coil wound by wave winding at a slot pitch of X or X+1 through the slots, a second annular winding portion wound in the same slot pitch as the first annular winding portion in such a position as not to completely overlap the first annular winding portion, and a plurality of third winding portions each made of the winding wound around the two slots. The first and second annular winding portions and the plurality of third winding portions are connected in series on a phase-by-phase basis.
Thu, 18 Aug 2016 08:00:00 EDTA winding arrangement method for a radial gap-type motor in which a three phase winding wound in a distributed winding form is inserted in slots of a stator includes: a coil forming step that, for each phase, forms a coil wound for each one pole pair; a coil group forming step that, for each phase, forms a first coil group by connecting odd-number-th coils along a direction of rotation via crossover wires, and forms a second coil group by connecting even-number-th coils along the direction of rotation via crossover wires; and a parallel-connecting step that, for each phase, connects the first coil group and the second coil group at one end, to form a current input side lead wire at the connection point, and connects the first coil group and the second coil group at the other end, to form a neutral point at the connection point.