96results about "Windings conductor material" patented technology

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.

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.

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.

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.

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.

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.

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.

The embodiment of the invention provides a stator winding, a motor and a motor optimization method, the stator winding comprises a multi-phase winding structure, each phase winding structure comprises at least one stator slot, each stator slot comprises at least one copper flat wire and at least one aluminum flat wire, and the copper flat wire is arranged at the notch of the corresponding stator slot; the aluminum flat wires are arranged at the bottoms of the corresponding stator grooves. Therefore, the copper flat wire and the aluminum flat wire which are connected in series and in parallel are arranged in the stator slot of each phase winding structure, the copper flat wire is arranged corresponding to the slot opening of the stator slot, and the aluminum flat wire is arranged corresponding to the slot bottom of the stator slot, so that the problem that the alternating current resistance of a copper flat wire motor in the prior art rises quickly along with the rotating speed is solved; and the motor has the characteristics of low winding resistance and high working condition efficiency in a wide speed domain range, so that the energy consumption of the motor is effectively reduced.

An aircraft motor includes a front end cover, a rear end cover, a housing, a stator assembly, and a rotor assembly, where the stator assembly is fixedly connected in the housing in an insulated manner, one end of the rotor assembly is rotatably connected to the rear end cover in a supported manner, and the other end of the rotor assembly is rotatably connected to the front end cover; and the front end cover and the rear end cover are fixed to a front portion and a rear portion of the housing. The stator assembly includes a stator coil winding, an insulating varnish, and a structural adhesive, where the stator coil winding is a self-supporting stator coil winding, the insulating varnish is configured to achieve insulation of the stator coil winding, and the structural adhesive is configured for the stator coil winding to be formed into a fixed shape.

The invention discloses a high-efficiency hybrid copper-aluminum rotor motor, which belongs to the technical field of motors and comprises a stator and a rotor, and a shell with radiating fins and an end cover are arranged on the outer side of the stator. The core improvement of the rotor is that the conducting bars are formed by mixing copper conducting bars and aluminum conducting bars and are arranged in a specific layered mode, the copper conducting bars are arranged on the upper layer and the lower layer of a rotor groove, the aluminum conducting bars are arranged on the middle layer, the skin effect is actively utilized, a high-frequency current path is optimized, and the copper conducting bars and the aluminum conducting bars are reliably and electrically connected at the end of the rotor through a conductive connecting ring. The connection process adopts a step-by-step different process method of firstly welding the copper conducting bar at a high temperature and then welding or crimping the aluminum conducting bar at a low temperature, and plating treatment can be selectively carried out on the end part of the aluminum conducting bar, so that the problems of reliability and durability of dissimilar metal connection are effectively solved. According to the invention, through collaborative design of materials and structures, the cost is greatly reduced while the efficiency of the motor is remarkably improved (the efficiency level can reach IE4 and above), and the process is stable and suitable for large-scale production.

The invention discloses a welding winding structure for a concentrated winding type motor, and relates to the field of windings, the welding winding structure comprises a first winding and a second winding which are in butt welding to form a winding, the butt joint of the first winding and the second winding is provided with a notch and a boss, the outer side of the boss is provided with a welding groove, and the welding groove is connected with the first winding and the second winding. A round corner of a coil formed by winding the whole winding is inevitably large, the first winding and the second winding are welded by prefabricating the shape of one wire so that the round corner can be greatly reduced, compared with a coil formed by winding the whole winding, the end height is greatly reduced, and the winding is composed of flat copper wires. According to the welding winding structure for the concentrated winding type motor, the height of the end part of the winding can be greatly reduced, the height of the end part of the winding is lower, and the motor formed by the winding is lighter and miniaturized, so that the carrying and carrying difficulty of a worker is reduced, and meanwhile, the design is also beneficial to reducing copper loss and improving the efficiency and the power density of the motor.

The invention provides a stator core, a motor and a scroll compressor, and relates to the field of scroll compressor design and manufacturing. The stator core comprises a stator yoke on the outer side and stator teeth and stator grooves which are uniformly distributed on the inner side, the outer contour of the stator yoke is composed of straight line sections which are uniformly distributed, first arc sections which are close to the outer side and second arc sections which are close to the inner side, the number of the stator teeth and the number of the stator grooves are equal and are Q, Q is larger than or equal to 24 and smaller than or equal to 36, Q is an even number which can be exactly divided by 3, and Q is larger than or equal to 24 and smaller than or equal to 36. Insulation paper and a circular enameled wire are placed in a stator groove, the conductive material of the circular enameled wire is copper or aluminum or copper-clad aluminum, the included angle alpha of a straight line section, the radius R1 of a first arc section, the radius R2 of a second arc section and the central angle beta of a second arc meet the condition that 3.246 < = 3.701, R1 is larger than or equal to 75 mm and smaller than or equal to 95 mm, and winding temperature rise can be reduced, efficiency can be improved, and noise can be reduced.

The invention relates to an electric machine (1) having a rotor (3) and a stator (2), wherein the stator (2) and / or the rotor (3) have an electric plug-in winding (4) comprising a plurality of rigid, insulated electric conductor elements (5), wherein the conductor elements (5) are arranged in slots of the stator (2) or the rotor (3) and protrude with conductor ends (17) from the slots, wherein the conductor ends (17) of the conductor elements (5) are respectively connected with the conductor ends (17) of other conductor elements (5) of the conductor elements (5) to form the electric plug-in winding (4), wherein the conductor elements (5) have an electrically insulating insulation sheath (9), characterized in that each conductor element (5) comprises a plurality of flexible fibers (8), in particular a plurality of flexible fibers of a conductor strip made of carbon nanotubes or graphene, and the insulation sheath (9) surrounds the plurality of fibers (8) in a hose-like manner and is configured in such a way that the insulation sheath imparts a rigid shape to the electric conductor element (5).

The subject of the present invention is a low-resistance and low-speed motor-generator comprising a rotor comprising an outer magnetic ring (1) and an inner magnetic ring (2), and a stator comprising a serpentine coil (4), arranged between the outer magnetic ring (1) and the inner magnetic ring (2), wherein the at least one magnetic ring constitutes a multipole monolithic magnet. In a preferred variant of the present invention, the serpentine coil (4) comprises at least one layer of an electrical conductor and at least one layer of a material with good magnetic permeability which are arranged alternatingly, which can be referred to as an air serpentine coil with an "inner core".

To provide an electric motor that has a plurality of windings made of different metals and yet ensures good heat balance. [Solution] A motor (electric motor) 10 includes a stator 40 and a rotor 30. The stator 40 includes a stator core 41 and a first winding portion 45a and a second winding portion 45b arranged circumferentially. The first winding portion 45a is configured by windings U1, W1, V2, U3, W3, and V4 (first winding) made of copper wire (first wire material) wound around teeth 44, and the second winding portion 45b is configured by windings V1, U2, W2, V3, U4, and W4 (second winding) made of aluminum wire (second wire material) having lower conductivity than copper wire wound around teeth 44. The first winding portion 45a and the second winding portion 45b are arranged alternately in the circumferential direction.

The invention relates to an electrical conductor (5) for a winding of an active part (1) of an electric machine, which is designed as a forming bar (6) for forming a forming bar winding (7) of the active part (1) of the electric machine and has a rod-shaped core (8) made of a first material (M1) and a sheath (9) enclosing the core (8) made of a second material (M2) different from the first material (M1), wherein the second material (M2) has a higher electrical conductivity than the first material (M1).

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.

This invention discloses a superconducting rotor drive device, relating to the field of superconducting rotor drive technology. The superconducting rotor drive device includes: a superconducting rotor, a stator winding, an optical fiber probe, an optical fiber detection circuit, and a drive power supply. The stator winding is disposed on the side of the superconducting rotor; the optical fiber probe is disposed above the superconducting rotor, and the optical fiber probe, optical fiber detection circuit, drive power supply, and stator winding are connected sequentially. The optical fiber detection circuit generates pulse signals based on the rotational speed signal and relative angular position detected by the optical fiber probe; wherein, the relative angular position is the relative angular position between the superconducting rotor and the stator winding; the drive power supply supplies or de-energizes the stator winding according to the pulse signals, thereby driving the speed change of the superconducting rotor. Compared with devices using stator coils and torque converters, or only the torque converter placed in a cylindrical hole inside the rotor sphere, this invention simplifies the structure of the superconducting rotor drive device, thereby improving its accuracy potential.

In order to use a Compressor having an overall housing which comprises a compressor housing section in which a compressing unit is arranged for compressing a refrigerant entering said overall housing, said overall housing further comprises a motor housing section in which an electric motor for driving said compressing unit is arranged, said refrigerant is guided by said overall housing into the motor housing section and into the compressor housing section, and said electric motor comprises a rotor and a stator, said stator being provided with electric windings for generating a revolving magnetic field, with natural refrigerants the electric windings are wound of electric conductors being primarily made of ammonia resistant metal and isolated by an insulating layer being ammonia resistant.

The invention relates to an electric motor for an aircraft, the electric motor comprising a stator for generating variable magnetic fields, and a rotor that is rotatable with respect to the stator and designed to carry out a rotational movement when the magnetic fields generated by the stator change, wherein the stator has a plurality of, preferably at least three, electrical coils which are each designed to generate a variable magnetic field independently of one another, wherein each of the coils is connected in series between two electrical half-bridges independently of the other coils and can be connected to a current source via the two electrical half-bridges.