154results 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.

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 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.

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.

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.

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.

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.

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

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.

A stator for an electric drive unit, in particular an electric motor, and to a method for the production thereof. The stator for the electric drive unit comprises a stator core having at least one stator pole; a stator winding which forms all coils from a continuous winding wire; at least one insulating cap, on which a plurality of contact receiving pockets are arranged for receiving the winding wire; a number of deflection domes which are distributed on the outer lateral surface of the cap; and wire guiding contours at the outer lateral surface of the insulting cap for spacing the winding wire; wherein the plurality of contact receiving pockets each have a receiving region for the winding wire which has a different design, and wherein the plurality of contact receiving pockets comprise at least one deflection balcony.

A conductive composite stator unit for an electric motor of a vehicle is provided. The stator unit comprises a stator core comprising a body having a first core end and an opposing second core end. The stator unit further comprises a plurality of conductive bars extending from the first core end to the second core end. Each conductive bar comprises a straight portion disposed in one of the slots such that the respective conductive bar is in contact with the stator core. Each conductive bar comprising a central portion and an outer layer disposed thereabout for electrical current to flow therethrough relative to the longitudinal axis, the outer layer comprises at least two copper-graphene (Cu-Gr) layers. Each Cu-Gr layer comprises a copper layer and a graphene layer. The stator unit further comprises an insulator layer disposed about each of the plurality of conductive bars.

The invention discloses an oblique coil direct current brushless permanent magnet motor with a magnetic field enhancing effect, belongs to the technical field of direct current brushless permanent magnet motors, and aims to change the structural condition that a stator coil is right opposite to a central shaft, the stator coil is deflected by an angle of 8-10 degrees relative to the central shaft, and a permanent magnet is not perpendicular to a plane and is deflected by an angle of 6-8 degrees relative to a vertical line; the oblique stator coil is made of copper varnished wires and iron varnished wires which are mixed and connected in parallel, the iron coil plays a role in increasing the magnetic field intensity like an iron core, and the motor power can be generally improved, the magnetic field intensity is increased, copper wires are saved, and the size of the iron core and the weight of the whole motor are reduced.

The present application relates to winding copper wire and its related products and the production equipment and method of winding copper wire, the winding copper wire has a layer of silicon carbide ceramic layer with the thickness range of 1-5um deposited on the outer peripheral surface of the wire body. The silicon carbide ceramic layer not only has good insulation performance, but also has dense hexagonal metallographic structure, good voltage resistance and ductility, so the winding copper wire of the present application can be applied to various occasions instead of enameled copper wire, and compared with enameled copper wire, it also has the characteristics of good heat conduction performance, high wire slot fullness rate after forming into a coil, less heat generated by eddy current on the copper wire, high temperature resistance, smaller motor volume under the same power, and greater current output under the same volume.

This disclosure provides an insulated electrical conductor, such as a wire, and a method for manufacturing such an insulated electrical conductor, in order to counteract partial discharge by enhancing the bonding strength between the electrical conductor and a main insulating thermoplastic layer (e.g., PAEK). [Solution] The insulated electrical conductor may include an electrical conductor, an insulating coating on at least a portion of the surface of the electrical conductor, and an oxide layer between the electrical conductor and the insulating coating. A method for producing such an insulated electrical conductor may include extruding an insulating polymer onto the electrical conductor in an ambient atmosphere, and a subsequent heat treatment step which may also be carried out in an ambient atmosphere.

The invention discloses a potting coil structure of a coreless efficient heat dissipation disc type generator, which comprises a coil panel, the coil panel is formed by integrally potting heat conduction epoxy resin or polyurethane, and the center of the coil panel is provided with a fixed flange for connection. The coil panel is provided with a plurality of radiating holes which are radially distributed at the periphery of the fixed flange, and a coil winding is embedded in each radiating hole. The scheme solves the problems of iron core coil iron loss, eddy current loss, poor heat dissipation, low mechanical strength, large coil panel weight, high glue use cost and the like, and has the beneficial effects of good heat dissipation performance, stable structure, light weight and long service life.

Provided is a semiconductive tape in which semiconductive resin layers in which metal particles are dispersedly mixed are disposed on a fibrous insulation substrate, wherein the metal particles have a melting point higher than the curing temperature of the thermosetting resin to be subjected to an impregnation treatment and lower than the softening point of the fibrous insulation substrate. The semiconductive tape is used for the stator coil of a rotating electric machine to suppress erosion of the thermosetting resin, impairment of semiconductivity thereof, and the like caused by heat generation, discharges and the like during operation of the rotating electric machine, thus exhibiting corona resistance stably over an extended period of time.

The utility model discloses an eight-claw automobile generator without magnetic stripes, and aims to solve the problems of high cost, low efficiency and poor stator winding heat dissipation of a traditional six-pair claw pole permanent magnet generator. Comprising a rotor assembly (8-claw-pole permanent-magnet-free) and a stator assembly (rectangular copper wire winding). The rotor adopts eight alternately arranged claw poles, a magnetic field is generated through energization of an excitation winding, a permanent magnet is omitted, and the cost is reduced; the eight-claw pole structure enables the magnetic field to be denser and improves the armature cutting efficiency; rectangular copper wires are embedded in the stator slots and are tightly arranged, so that the slot fullness rate is increased, and the heat dissipation area is increased. Therefore, the output power of the generator is equal to that of a traditional six-pair claw pole permanent magnet generator, but the cost is reduced, the magnetic attenuation risk is avoided, and the reliability is better.

This invention relates to the field of superconducting motor technology, and in particular to a low-loss superconducting motor and its design method. The low-loss superconducting motor includes a vacuum chamber, a stator assembly, and a mover assembly. The stator assembly includes a stator support frame with a planar top structure and a superconducting coil disposed on the planar structure. A protective cover is disposed above the superconducting coil, and a radiative heat shield is disposed on the protective cover. The mover assembly is disposed between the protective cover and the radiative heat shield. The mover assembly includes a frame-shaped mover support frame and a constant conductor coil. The temperature of the constant conductor coil is controlled by controlling the emissivity of the radiative heat shield, and the surface emissivity of the protective cover is used to cool the constant conductor coil. The invention also discloses a design method based on a low-loss superconducting motor. The air gap between the stator assembly and the mover assembly is small, which facilitates the achievement of a high magnetic field, reduces the Joule loss of the constant conductor coil, eliminates the need for air or water cooling pipes, and facilitates temperature control.

The invention belongs to the related technical field of superconducting, and discloses an annular superconducting armature winding topological structure and a superconducting motor. The armature winding is a high-temperature superconducting coil, and the high-temperature superconducting coil is embedded into each stator groove in an annular winding structure. Compared with a conventional fractional slot concentrated winding, more winding phase distribution and slot potential distribution can be provided for the superconducting motor, and more design freedom degrees are achieved; the influence of the direction of a magnetic field acting on a winding strip on the performance reduction of the strip can be greatly reduced, and the performance bottleneck caused by high harmonic loss and low slot fullness rate of a traditional concentrated / distributed winding is greatly reduced; the technical problems of alternating current loss accumulation, poor superconducting state stability and insufficient mechanical reliability of the superconducting armature winding in the MW-level aviation motor are effectively solved.