201results about "Windings conductor material" patented technology

The invention relates to the technical field of electromagnetic coils, in particular to a laminated planar spiral coil winding. The laminated planar spiral coil winding is formed by laminating at least two layers of planar spiral coils, the spiral center fitting line formed by each turn of wire is linear, the planar spiral coils occupy the whole winding plane, the strong magnetic center deviates from the geometric center of the planar spiral coils, and the phases of the winding are different in layer. The invention aims to provide competitive choices for the axial flux motor winding, such as high copper full rate, low copper loss, large air gap, easy heat dissipation and low production cost.

A composite wire bundle for a stator winding, a stator including a composite wire bundle, and a method of forming a composite wire bundle. The composite wire bundle includes a plurality of copper wires, wherein each of the plurality of copper wires include a first surface. The composite wire bundle also includes a copper-graphene multilayer composite applied to the first surface of each of the plurality of copper wires, wherein the copper-graphene multilayer composite includes a second surface. Further, the composite wire bundle includes a fluoropolymer matrix formed around the second surfaces and a jacket encapsulating the fluoropolymer matrix.

An electric machine configured to convey electromechanical energy, such as through the conversion between electrical power and mechanical power, includes a slot into which is disposed a coil. The slot can be a stator slot having a trapezoidal cross-sectional shape. The coil can have a plurality of turns that, in cross-section, also includes a trapezoidal shape. The turns can be stacked upon each other in a radial direction between the proximal end and the distal end of the stator slot, each turn of the coil having a different cross-sectional area and a different radial height relative to an adjacent turn of the coil. Additionally and / or alternatively, each turn of the coil, except for the turn of the coil located at the distal end of the stator slot, includes a reduced radial height relative to a turn of the coil that is located radially outward from each turn of the coil.

The invention comprises a stator (1) for an electric motor, having a basic shape, wherein the basic shape consists of a one-piece insulating material (14) and the stator (1) has a first end region (5), a second end region (6), and a core region (7) arranged between the first end region (5) and the second end region (6), wherein electrical lines (4) for coil windings are embedded in the insulating material (14), wherein the electrical lines (4) run essentially in the transverse direction (11) in the insulating material (14) of the first end region (5) and the second end region (6) and in the longitudinal direction (12) in the insulating material (14) of the core region (7), wherein the core region (7) has at least one sequence of alternatingly arranged first core layers (8) and second core layers (9) in the longitudinal direction (12),wherein the insulating material (14) is formed in the first core layer (8) as a column structure (10) and in the second core layer (9) as a surface structure (21), and wherein ferromagnetic material (13) for forming stator teeth (3) is arranged between the column structures (10) made of insulating material (14) in the first core layers (8). The invention further comprises a method (100) for producing a stator (1).

The invention provides a stator assembly, a generator and a wind generating set. The stator assembly comprises a stator core, a multi-turn winding and an inter-turn insulating layer arranged on the periphery of each turn of winding, a stator groove is formed in the stator core, the windings are arranged in the stator grooves, each turn of winding is formed by winding a plurality of strands of conductors in parallel, the conductors are flat aluminum conductors with rectangular sections, and in the same stator groove, the cross section of each flat aluminum conductor is rectangular. The cross sectional area of the first turn of winding close to the notch is larger than that of the other turns of windings, the number of layers of the conductors in the first turn of winding is larger than that of the conductors in the other turns, and the thickness of the conductors in the first turn of winding is smaller than that of the conductors in the other turns of windings. According to the scheme of the invention, the manufacturing cost of the generator can be reduced while the performance of the generator is ensured.

The invention relates to an equivalent modeling establishment method for a winding in a slot of an outer rotor permanent magnet synchronous motor. The method comprises the following steps: S1, obtaining winding parameters of the outer rotor permanent magnet synchronous motor; s2, performing equivalent treatment on copper, air, insulation and enameled wires existing in a single winding; s3, calculating a single equivalent heat conductivity coefficient; s4, stacking according to the single winding in the S2, and calculating the equivalent heat conductivity coefficient of the whole slot winding; and S5, carrying out equivalence on the equivalent heat conductivity coefficient of the whole slot winding obtained in the step S4 and slot insulation again to obtain an equivalent slot heat conductivity coefficient of the whole model, and completing equivalent modeling of the winding in the slot of the permanent magnet synchronous motor. The method has the advantages that materials, including copper, insulation, air, enameled wires and the like, of the winding in the groove are equivalent to the variable-heat-conductivity-coefficient conductor, the heat conductivity coefficient and the heat flux density of the equivalent model are calculated, and meanwhile, the three-dimensional temperature field global simulation model is established, so that the transient temperature field distribution of the outer rotor permanent magnet synchronous motor is more accurate.

An electric machine configured to transmit electrical power (e.g., by conversion between electrical power and mechanical power) includes a slot in which a coil is disposed. The slots may be stator slots having a trapezoidal cross-sectional shape. The coil may have a plurality of turns, the cross-section of which also includes a trapezoidal shape. The turns may be stacked on each other in a radial direction between a proximal end and a distal end of the stator slot, each turn of the coil having a different cross-sectional area and a different radial height relative to an adjacent turn of the coil. Additionally and / or alternatively, each turn of the coil has a reduced radial height relative to a turn of the coil located radially outside of each turn of the coil except for the turns of the coil located at the distal end of the stator slot.

A motor includes a stator having a plurality of stator coils repeatedly disposed in a circumferential direction and a rotor configured to rotate around a rotating shaft, including a magnetic material generating rotational force by interacting with the plurality of stator coils. The magnetic material forms a band shape and is configured to be continuously disposed in the circumferential direction. The magnetic material is repeatedly arranged in the axial direction, forming a plurality of layers in the axial direction.

The disclosure relates to a four-phase motor and generator device with increased efficiency for generating electrical energy. The device features a stator wall with eight stator slots and four pole groups, and an armature rotatable within the stator wall. The eight stator slots are divided into four pole groups of opposing stator slots; the two opposing stator slots include an N (North) stator slot and an S (South) stator slot. N and S stator slots are alternatively activated in response to the rotation of the armature. The activation of the armature pole groups results in armatures rotating the magnetic field within the stator wall, and only four of the eight poles are actively coupled in any given configuration. The disclosure also includes a method of operating the motor for generating electrical energy with increased efficiency and in an environmentally friendly manner compared to conventional motors.

A related heating or cooling apparatus, namely a fluid circulator (100) for heating or cooling systems comprising: a body pump (1) having an impeller for moving the fluid; an electric motor (2) for rotating the impeller, the electric motor (2) comprising at least one electrical winding (21); at least one terminal (22) of an electrical power supply wiring of the electric motor (2); at least one electrical connection (5) between the terminal (22) and an end of the at least one electrical winding (21). The at least one electrical winding (21) is made of aluminum or alloys thereof, and the fluid circulator is provided with a protection element configured for sealingly enclosing the at least one electrical connection (5).

The invention discloses a range extender generator for a 30000-turn electric aircraft, which adopts a mode that an inner rotor has 18 slots, 10 poles and five sections of rotor iron core skewed slot magnetic steel is radially inserted, and has the excellent performances of symmetrical magnetomotive force waveform, high winding coefficient, low torque pulsation and cogging torque and no end ring current. The motor adopts a centralized winding, winding oil cooling and shell water cooling mode, and is suitable for a generator for a range extender of an electric aircraft.

The invention relates to a motor with a stator (2, 2') and a rotor (1, 1') which can be driven about an axial direction (4), characterized in that at least one of these, in particular the stator, which has a current-bearing winding arrangement, is radially compressible and expandable.

A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin.

This utility model discloses a novel push-button generator, relating to the field of generator technology, comprising a coil support, a pressure rod, a pressure plate, a coil, a magnet, and magnetic conductive sheets. The coil support has a cavity and a support bar; the pressure rod is installed inside the cavity and supported at its center by the support bar, forming a fulcrum; the coil is wound around the coil support and surrounds the pressure rod, with terminals at both ends; a magnet is mounted at the tail end of the pressure rod, and a pressure plate is mounted at the front end; the coil is wrapped with N-pole and S-pole magnetic conductive sheets, which are bent to form contact portions. Pressing the pressure plate drives the pressure rod to deflect, causing the magnetic field lines to switch between the contact portions of the two magnetic conductive sheets, achieving two-stage power generation. This utility model uses high-performance materials, resulting in high power generation efficiency, stable and durable structure, environmental friendliness, energy saving, and wide applicability, solving the problems of low efficiency, poor stability, and lack of environmental friendliness in existing push-button generators.

This coil is used in an electric lathe comprising: a rotor rotatable about an axis; and a cylindrical stator facing the rotor radially and centered on the axis. The stator has: a stator core having an annular yoke centered on the axis and several teeth projecting radially inward from the inner circumferential surface of the yoke and aligned at intervals in the circumferential direction; and the coil covering the circumference of the teeth. The coil has several individual coils covering the teeth from the outer circumferential side and stacked radially with respect to the axis. A section of each individual coil, containing end sections on both sides in the circumferential direction with respect to the axis, is a high-resistance section in which the electrical resistance is higher than the electrical resistance of the remaining section.

A motor that is a wound field synchronous motor and includes a rotor and a stator. The rotor includes a plurality of winding portions configured to have a preset cross-section for generating a uniform effective air gap. The winding portions are spaced from each other a predetermined distance apart along a circumferential direction of the rotor. A field coil is wound around the plurality of winding portions.

An object of the present invention is to provide a stator of a rotary electric machine of which miniaturization, high output, and cost reduction are balanced at a higher level than the related art, and a rotary electric machine including the stator. Provided is a stator of a rotary electric machine in which a stator coil is wound around a stator core. The stator coil includes a welding portion of segment conductors formed in a region of an end portion of the stator coil; each of the segment conductors includes an exposed conductor wire portion in which an insulating coating formed on an outer periphery of a conductor wire is removed in a vicinity of the welding portion; the exposed conductor wire portion on at least one side of a pair of the segment conductors forming the each welding portion includes, in a longitudinal direction of the conductor wire, a root portion adjacent to the insulating coating, a transition portion for offsetting a center axis of the conductor wire in a radial direction by a predetermined amount of displacement; a bonding portion offset in a radial direction with respect to the root portion by a predetermined amount of displacement and a boundary portion between the root portion and the transition portion and a boundary portion between the transition portion and the bonding portion have pressing marks; and the predetermined amount of displacement is "1 ± 0.4" times or "2 ± 0.4" times a thickness of the insulating coating.

A stator for a brushless DC motor, the stator comprising: a plurality of coil windings; and a layered stack of laminations positioned around a centre axis, wherein the layered stack of laminations defines an annular shape, and wherein each lamination from the layered stack of laminations has: a first plurality of teeth, wherein the first plurality of teeth extend radially towards the centre axis and define a first plurality of channels between the first plurality of teeth, wherein each channel of the first plurality of channels is configured to receive at least a portion of a coil winding; a second plurality of teeth, wherein the second plurality of teeth extend radially away from the centre axis and define a second plurality of channels between the second plurality of teeth, wherein each channel of the second plurality of channels is configured to receive at least a portion of a coil winding; and wherein each of the first plurality of channels and the second plurality of channels is provided with a layer of electrically insulating ceramic material such that each coil winding of the 15 plurality of coil windings is electrically isolated from the layered stack of laminations.

A composite harness for a stator winding, a stator including the composite harness, and a method of forming the composite harness. The composite wire harness includes a plurality of copper wires, where each of the plurality of copper wires includes a first surface. The composite wire harness further comprises a copper-graphene multilayer composite material coated on the first surface of each copper wire in the plurality of copper wires, and the copper-graphene multilayer composite material comprises a second surface. Further, the composite wire harness includes a fluoropolymer matrix formed around the second surface and a sheath encapsulating the fluoropolymer matrix.

Electrical, mechanical, computing, and / or other devices that include components formed of extremely low resistance (ELR) materials, including, but not limited to, modified ELR materials, layered ELR materials, and new ELR materials, are described.

Methods, apparatuses, systems, computing devices, and / or the like are provided. In some embodiments, a power generation system is disclosed including a roller; an end cap fixedly connected to the roller, wherein the end cap is configured to be operably engaged with a material handling system; a plurality of magnets disposed on or within the end cap; and a pick-up assembly including one or more pick-up coils, wherein the pick-up assembly is configured to be operably engaged with the end cap and the material handling system, wherein the roller is configured to rotate such that the plurality of magnets rotate relative to the pick-up assembly and generate a magnetic flux configured to intersect the one or more pick-up coils and thereby generate a current.

An electrical machine stator can include a stator core (101) having a stator core shape and made of a core material (103), a plurality of windings (105) disposed in the stator core and made of a conductive material (107), and an insulative material (109) surrounding the plurality of windings and configured to electrically insulate each winding from each other adjacent winding, and / or to insulate one or more of the windings from the stator core. The insulative material can be an amorphous metal.

The invention relates to a motor of an industrial sewing machine, wherein a stator and rotor assembly wound with aluminum wire is arranged in a front shell, which effectively reduces manufacturing costs; a rear cover is provided at the opening of the front shell, and one end of a rotating shaft extends from the rear cover and is connected to a fan blade; a control circuit board is provided in the rear shell, and a front cover is provided at the opening of the rear shell; an air inlet is provided at the side end of the rear shell, a front air guide hole is provided in the middle of the front cover, and a rear air guide hole is provided in the rear cover. After the rear shell is closed on the front shell, an air outlet gap is formed at the edge of the opening and a heat dissipation cavity for accommodating the fan blades is formed between the front cover and the rear cover, the front air guide hole and the rear air guide hole are respectively communicated with the heat dissipation cavity, and the air outlet gap is communicated with the heat dissipation cavity; the rotating shaft drives the fan blades to rotate so that wind enters the rear shell from the air inlet and brings the heat of the control circuit board into the heat dissipation cavity through the front air guide hole, while the heat of the stator and rotor assemblies is brought into the heat dissipation cavity through the rear air guide hole, and the wind in the heat dissipation cavity is discharged from the air outlet gap, thereby realizing true convection heat dissipation.

An electric motor includes a stator presenting a first surface. A rotor is rotatable relative to the stator. The rotor presents a rotor raceway disposed in spaced relation to the first surface of the stator. The first surface of the stator defines a plurality of slots in spaced relation to one another to define a plurality of spaced teeth between the plurality of slots. At least one electrical conductor is disposed in each of the plurality of slots and is configured to selectively generate a moving magnetic field to act on the rotor to provide rotational motion of the rotor. A portion of the at least one electrical conductor extends substantially in radial alignment with the first surface of the stator or extends beyond the first surface of the stator to at least partially define a stator raceway of the stator for engaging the rotor raceway of the rotor during relative radial motion between the rotor and the stator.

An electric generator, comprising: a housing; an inlet for receiving gas into said housing; a rotor operatively rotatable through contact with said fluid; said rotor having at least one magnetic element attached to its inside; a stator winding assembly having a coreless stator winding arranged to interact with said magnetic element; wherein said stator winding assembly having a dismantlable casing arranged to seal the coreless stator winding from said gas inflow.

To inhibit a torque ripple from deteriorating.SOLUTION: A motor 10 comprises a stator 14 having a stator core 26. The stator 14 comprises a coil connection body 46U of one phase having a plurality of coils 16 connected to each other, the plurality of coils 16 including at least one coil 16 having electric resistance set so as to differ from electric resistance of the other coils 16. The stator 14 also comprises coil connection bodies 46V, 46W of other phases, each of which has a plurality of coils 16 connected to each other, the plurality of coils 16 including at least one coil 16 having electric resistance set so as to differ from electric resistance of the other coils and has combined resistance set so as to be the same as combined resistance of the coil connection body 46U of the one phase.SELECTED DRAWING: Figure 1

Axial flux motors and related methods are disclosed herein. A disclosed axial flux motor includes a stator having a plurality of pole pieces, a rotor spaced apart from the stator in an axial direction of the axial flux motor, and a coiled tape of conductive material forming at least a portion of the pole pieces of the plurality of pole pieces. The axial direction of the coiled tape of conductive material is substantially parallel to the axial direction of the axial flux motor. In some embodiments of the disclosed axial flux motor, a coiled tape of soft magnetic material and a coiled tape of conductive material are coiled into staggered composite coils that form at least a portion of a pole piece for the axial flux motor.

This invention provides a motor that suppresses corrosion that occurs at the connection point between the terminal electrodes and the aluminum rotor coil. [Solution] The motor 10 of the present disclosure is a motor comprising a stator and a wound-field type rotor, the rotor comprising a rotor core, an aluminum rotor coil wound around the rotor core, an aluminum terminal electrode provided at the end of the rotor coil, and a rotor shaft attached to the rotor core and rotating together with the rotor core, the aluminum terminal electrode being attached to the rotor shaft and configured to receive power from an electrode connected to an external power source.

An insulated wire including a conductor and a resin coating layer covering a periphery of the conductor, wherein the conductor is an aluminum conductor surface-treated with CO2 plasma, and at least a portion of the resin coating layer in contact with the conductor includes at least one kind of a polyaryletherketone resin and a polyphenylene sulfide resin.