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320results about "Magnetic circuit shape/form/construction" patented technology
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Motor, camera module and electronic equipment
The invention provides a motor, a camera module and electronic equipment. The motor comprises a base, an anti-shake support, a first anti-shake magnetic part, a second anti-shake magnetic part, a first anti-shake coil, a second anti-shake coil, a compensation coil and a compensation magnetic part, the first anti-shake coil faces the first anti-shake magnetic part and is used for driving the anti-shake support to move in the first direction, and the second anti-shake coil faces the second anti-shake magnetic part and is used for driving the anti-shake support to move in the second direction. The motor is used for driving the anti-shake support to move in the second direction; the compensation coil faces the compensation magnetic piece; the first anti-shake magnetic piece is provided with a first axis which passes through the center of the first anti-shake magnetic piece; the second anti-shake magnetic piece is further provided with a second axis which passes through the center of the second anti-shake magnetic piece. The center of the compensation magnetic piece is staggered with the first axis and the second axis. According to the motor, the compensation magnetic part is arranged, so that the compensation magnetic part can provide acting force for the anti-shake support in the movement process of the anti-shake support, the anti-shake support is prevented from overturning, and the precision of the motor in the anti-shake process is improved.
Owner:HUAWEI TECH CO LTD
Locking assembly for a propeller rotor of an aircraft, a rotor assembly for the aircraft, and a method
A locking assembly for a propeller rotor includes an electric machine having a first mode to energize the electric machine to produce torque and a second mode to deenergize the electric machine to stop production of the torque. A magnetic assembly includes a first component coupled to a first wall via a pivot point, and a second component attached to a second wall. The first component and the second component align proximal to each other when the first component is in a locked position such that the first and second components create a magnetic attraction therebetween to lock the first wall in a stationary position when the electric machine is in the second mode. The first component moves away from the second component to an unlocked position due to rotation of the first wall when the electric machine is in the first mode.
Owner:THE BOEING CO
Electric power system for a vehicle
An electric power system (400) for a vehicle includes at least one electric machine (321), one or more power rectifiers, and a plurality of DC channels. The at least one electric machine (321) includes a plurality of tooth-wound multi-phase windings (311) that are substantially magnetically decoupled, and the at least one electric machine (321) is mechanically balanced even if one of the plurality of windings (311) is de-energized. The one or more power rectifiers are configured to produce rectified power from the power generated by the at least one electric machine (321). The plurality of DC channels are formed after the at least one power rectifier and are configured to provide DC power to one or more loads within a vehicle.
Owner:GENERAL ELECTRIC CO
Propulsion system using force field generating coils
PendingUS20250132082A1Electromagnets without armaturesCosmonautic vehiclesElectromagnetic propulsionMechanical engineering
The present invention relates to a new form of air, land, underwater, or space propulsion, achieved by the use of suitable electromagnetic interactions. When using coils (1), with internal core (2) and support piece (3), subjected to current pulses with asymmetric current derivative and magnetic field, we obtain directional propulsion forces. This is possible due to a new electromagnetic propulsion mechanism that uses the conservation of total momentum where the sum of the mechanical moment with the moment of the magnetic field must always be conserved, resulting in a constant and null total sum of the two components, where the variation of the magnetic field moment will generate a corresponding change in the mechanical moment of the coil, thus generating propulsion forces. When magnetic fields with asymmetric derivative are produced in an external volume, they may also generate force fields.
Owner:TIAGO BAPTISTA DE ALVES MARTINS ALEXANDRE
Magnetic field center concentrated type non-reaction generator
Provided is a magnetic field center concentration type non-reactive generator that can continuously run a vehicle for a long time and can be used as a household generator. 【Solution means】The magnetic field center concentration type non-reactive generator has, at the upper part, a circular S-pole magnet with a curved cylindrical shape and a cylindrical cross-section, and the outer wall surface magnetized to the S-pole is arranged on the circumference of a circle. A C-shaped N-pole magnet with a cylindrical cross-section and the outer wall surface magnetized to the N-pole, which is connected and fixed to an insulating rotating shaft installed at the center of the circle via an insulating arm, is arranged so as to surround the circular S-pole magnet. A large number of magnetic field lines are generated from all directions of the C-shaped portion of the C-shaped N-pole magnet toward the circular S-pole magnet, and also from the outer wall surface of the C-shaped N-pole magnet toward the outer wall surface of the circular S-pole magnet. At the lower part, components equivalent to those at the upper part are arranged equivalently. Left-handed windings are arranged at equal intervals with a certain gap at the upper part, and right-handed windings are arranged at equal intervals at the lower part so as to be located at the middle position between adjacent left-handed windings at the upper part.
Owner:西宮 由孝
Motor, camera module and electronic device
The present application provides a motor, a camera module and an electronic device. The motor comprises a base, an anti-shake support, a first anti-shake magnetic member, a second anti-shake magnetic member, a first anti-shake coil, a second anti-shake coil, a compensation coil and a magnetic compensation member. The first anti-shake coil faces the first anti-shake magnetic member and is used for driving the anti-shake support to move in a first direction; the second anti-shake coil faces the second anti-shake magnetic member and is used for driving the anti-shake support to move in a second direction; the compensation coil faces the magnetic compensation member; the first anti-shake magnetic member is provided with a first axis which passes through the center of the first anti-shake magnetic member; the second anti-shake magnetic member is provided with a second axis which passes through the center of the second anti-shake magnetic member; and the center of the magnetic compensation member is staggered from the first axis and the second axis. By providing the magnetic compensation member, in the moving process of the anti-shake support, the magnetic compensation member can provide an acting force for the anti-shake support, avoiding the flipping of the anti-shake support, thereby improving the precision of the motor in the anti-shake process.
Owner:HUAWEI TECH CO LTD
Dual rotor motor
To provide a dual rotor motor that uses a distributed winding system to improve torque efficiency compared to conventional motors.SOLUTION: A dual rotor motor includes a stator, an outer rotor, and an inner rotor. The stator has a plurality of outer slots, a plurality of outer stator teeth, a plurality of inner slots, a plurality of inner stator teeth, and winding coils. When a first condition is that the circumferential length of the outer stator teeth on which adjacent in-phase winding coils are wound is shorter than the circumferential length of the outer stator teeth on which adjacent out-of-phase winding coils are wound, and a second condition is that the circumferential length of the inner stator teeth on which adjacent in-phase winding coils are wound is shorter than the circumferential length of the inner stator teeth on which adjacent out-of-phase winding coils are wound, the dual rotor motor satisfies at least one of the first and second conditions.SELECTED DRAWING: Figure 1
Owner:DAIHATSU MOTOR CO LTD
Electric radial flux machine
PendingDE102023119312A1Association with grounding devicesMagnetic circuit shape/form/constructionElectric machineMachine
The invention relates to an electric radial flux machine (1), in particular for a drive train (2) of a motor vehicle (3), comprising a stator (5) received in a housing (4) with an internally rotating first rotor (6) and with an externally rotating second rotor (7), wherein the first rotor (6) and the second rotor (7) are rotationally fixedly coupled to each other and the stator (5) is constructed from a plurality of stacked electrical steel sheets (8), wherein the radial flux machine (1) has at least one axially spring-loaded grounding element (9) which electrically contacts the stator (5) on one side and the housing (4) on the other.
Owner:SCHAEFFLER TECHNOLOGIES AG & CO KG
Electromagnetic pump and assembling method thereof
PendingCN119231827Areduce noisecancel noiseManufacturing dynamo-electric machinesMechanical energy handlingBobbinElectromagnetic pump
The invention discloses an electromagnetic pump which comprises a main pipe, a coil assembly and a retainer, the coil assembly is arranged outside the main pipe in a sleeving mode, the retainer is fixed outside the coil assembly, the retainer is used for conducting magnetism outside the coil assembly, a front hole and a rear hole are formed in the retainer, and the main pipe penetrates through the front hole and the rear hole. The coil assembly comprises a coil framework on the inner side, a front magnet yoke ring, a rear magnet yoke ring and an isolating ring are arranged in the coil framework and outside the main pipe, the isolating ring is arranged between the front magnet yoke ring and the rear magnet yoke ring, and at least one side of the isolating ring is provided with a damping ring. The invention further discloses an assembling method of the electromagnetic pump, the front magnet yoke ring and / or the rear magnet yoke ring can be installed firstly, and then the retainer is installed. According to the electromagnetic pump, the damping ring is arranged on one side of the isolating ring, so that the noise of the pump station isolating ring in the axial direction is reduced when the electromagnetic pump works through the front magnet yoke ring or the rear magnet yoke ring on the side, and the noise generated when the electromagnetic pump works is greatly reduced.
Owner:SHENZHEN VEOLO POWER CO LTD
Propeller magnet system with high reliability and low heat leakage
PendingCN119541986Areduce in quantitySimplify connection designWindingsCosmonautic vehiclesSuperconducting CoilsAtomic physics
The invention relates to the technical field of superconducting magnets, and discloses a high-reliability and low-heat-leakage propeller magnet system which comprises a Dewar, a coil assembly and a plurality of sets of heat insulation supporting structures, the coil assembly is arranged in the Dewar and connected with the Dewar through the heat insulation supporting structures, the coil assembly comprises a coil framework, and the coil framework is arranged in the Dewar and connected with the Dewar through the heat insulation supporting structures. The coil body is wound on the surface of the coil framework, the heat insulation supporting structure comprises a hot ring, a cold ring and a pull rod, the two ends of the pull rod are connected with the hot ring and the cold ring respectively, the hot ring is connected with the Dewar, and the cold ring is connected with the coil framework. Through the integrally designed heat insulation supporting structure, the number of parts of the magnet structure is remarkably reduced, the supporting stability is improved, it is guaranteed that the center line of a magnetic field coincides with the center line of plume of the propeller, and heat leakage of the magnet is further reduced.
Owner:HEFEI SPACE MAGNETIC PROPULSION TECHNOLOGY CO LTD
VCM structure, lens and shooting equipment
ActiveCN119602563Ahigh activityeasy to moveProjector focusing arrangementCamera focusing arrangementMagnetic field magnitudePhysics
The invention discloses a VCM structure, a lens and a shooting device, and relates to the technical field of VCM structures, the VCM structure comprises a magnetic circuit structure and a coil assembly, the magnetic circuit structure comprises a magnet yoke assembly and a magnet assembly, the magnet yoke assembly forms a mounting cavity with an opening facing a first direction, and the magnet assembly is arranged in the mounting cavity. The magnet assembly comprises a plurality of magnet groups which are sequentially arranged in the second direction, each magnet group comprises four magnets which are sequentially arranged in the second direction, the magnetizing directions of the four magnets are distributed according to a Halbach array and are all perpendicular to the first direction, the magnetizing directions of the two magnets are opposite and are consistent with the second direction, and the magnetizing directions of the four magnets are perpendicular to the first direction. The coil assembly is movably arranged in the installation cavity in the second direction, and when the coil assembly is powered on and acts with the magnet assembly, the coil assembly can move in the second direction. The VCM structure in the scheme is high in magnetic field intensity, uniform in magnetic field distribution and wide in applicability, and the stroke can be changed according to requirements.
Owner:UNION OPTECH
Neodymium-iron-boron magnet as well as preparation method therefor and use thereof
PendingUS20250069784A1Magnetic materialsInductances/transformers/magnets manufactureRare-earth elementGrain structure
A neodymium-iron-boron magnet as well as a preparation method therefor and the use thereof are provided. The magnet contains main-phase grains having an R2(Fe,M)14B structure, and grain boundary phases. The grain boundary phases has two-grain grain boundaries between every two main-phase grains and triangular grain boundaries consisting of gaps among every three or more main-phase grains. M represents Cu, Ga, and / or Al, and R is at least one rare earth element including Nd. By means of regulating the component proportions of elements Cu, Ga, Al, etc, a distribution rule thereof in a magnet, and the grain sizes of grains, a magnet with high Br and Hcj can be obtained.
Owner:YANTAI ZHENGHAI MAGNETIC MATERIAL CO LTD
Heat dissipation type magnetic shoe structure
ActiveCN222638316UIncrease cooling areaspeed up heat dissipationCooling/ventillation arrangementMagnetic circuit shape/form/constructionThermodynamicsElectric machinery
Owner:MA AN SHAN SHI XIN YANG YONG CI YOU XIAN ZE REN GONG SI
Non-contact rotary transformer and motor comprising same
Disclosed are a non-contact rotary transformer and a motor comprising same. A non-contact rotary transformer according to the present invention is a device for connecting a rotor of a motor with an external power source in a non-contact manner, and is characterized by comprising: a core part disposed inside a hollow motor shaft in a coaxial structure with the motor shaft; a primary coil part installed on the outer circumferential surface of the core part; a secondary coil part which is installed on an inner main surface of the motor shaft and surrounds the primary coil part at a predetermined interval (air gap) therefrom; and a rectifier circuit part which is coupled to the motor shaft and rotates in synchronization therewith, and which is electrically connected to the secondary coil part.
Owner:INTELLECTUAL DISCOVERY CO LTD
Three-rotor linear motor
ActiveCN223758162UMagnetic circuit shape/form/constructionPropulsion systemsElectric machinePressure casting
The utility model provides a three-rotor linear motor which comprises a support, a rotor assembly and a stator assembly are arranged in the support, and the rotor assembly is arranged above the stator assembly in a suspended mode and is driven by the stator assembly to move back and forth in a staggered mode. The rotor assembly comprises an inner rotor and outer rotors arranged on the two sides of the inner rotor respectively, an annular frame integrally formed in a die-casting mode is jointly connected between the two outer rotors, the annular frame cannot make contact with the inner rotor when swinging, the annular frame swings along with swinging of the two outer rotors, and therefore it can be guaranteed that the swinging frequencies of the two outer rotors are consistent, and the service life of the two outer rotors is prolonged. The swing accuracy of the inner rotor is improved, the use of parts is greatly reduced, the structure is simplified, and the assembly efficiency is improved; a limiting piece is connected between the inner rotor and any outer rotor, an opening is formed in at least one end of the limiting piece, the inner rotor or the outer rotors are rotationally connected into the opening, impact caused by high-speed swing of the rotors can be reduced, noise is greatly reduced, and the user experience feeling is better.
Owner:DONGGUAN KEDE PRECISION MFG CO LTD
Improved intrinsically adapting variable generators and motors
A dynamoelectric machine including an inner cylindrical stator, an outer cylindrical stator, and a cylindrical rotor positioned radially between the inner cylindrical stator and the outer cylindrical stator, the cylindrical rotor being rotatable with respect to the inner and outer cylindrical stators. The cylindrical rotor includes at least one rotating conductor which includes a mixture of an electrically conducting material and a ferromagnetic material. The inner and outer cylindrical stators include at least one of (i) gradient magnetic field strength areas that vary in flux density longitudinally down along an axial direction of the dynamoelectric machine, (ii) different radial diameters of overlapping rotor and stator portions provided at different axial positions of the dynamoelectric machine, and (iii) electromagnets which are structured to be selectively energized based on a changing variable.
Owner:NEXTPOWER360 CO
Rod-shaped motor
ActiveCN223246459UStructural associationMagnetic circuit shape/form/constructionClassical mechanicsElectric machinery
The utility model discloses a rod-like motor which comprises a rotor mechanism and a stator mechanism, the stator mechanism is provided with a stator guide sleeve and a stator guide ring, the rotor mechanism is provided with a rotor guide sleeve and a rotor guide ring, the stator guide ring is correspondingly matched with the rotor guide sleeve, and the stator guide sleeve is correspondingly matched with the rotor guide ring. Movement guiding is carried out between the rotor mechanism and the stator mechanism through a stator guiding ring and a rotor guiding sleeve and through the stator guiding sleeve and a rotor guiding ring. The two sets of sleeves and rings are adopted for guiding in a matched mode, the structure is simple, the stability of relative movement between the rotor mechanism and the stator mechanism is improved, the driving effect of an automobile can be effectively improved, vibration generated when the automobile runs can be reduced, and the damping effect of the automobile can be adjusted in real time according to road conditions.
Owner:DIREC SEIKO (SHENZHEN) CO LTD
Coil body, armature, and rotating electrical machine
PendingJP2025003221AMagnetic circuit shape/form/constructionWindings conductor shape/form/constructionElectric machineConductive materials
To ensure the strength of a coil body in a configuration where base members are stacked in the axial direction.SOLUTION: A coil body 32 is formed in a radially extending shape using insulating material and has an axially stacked substrate 34. The coil body 32 further has a magnetic field generator 80 that is formed on the substrate 34 using conductive material and generates a rotating magnetic field when energized. Furthermore, the coil body 32 has a reinforcement portion 70 formed in a different area than the area where the magnetic field generator 80 is formed on the axially oriented surface in the substrate 34. This reinforcement portion 70 reinforces the substrate 34.SELECTED DRAWING: Figure 9
Owner:DENSO CORP
Multi-pole, multi-phase generator-motor and method of using same
PCT designated stageWO2026071871A1Synchronous machinesMagnetic circuit shape/form/constructionDynamoMagnet
The invention relates to the field of electrical engineering. A multi-pole, multi-phase generator-motor comprises a fixed magnetic core (stator), a movable magnetic core (rotor), a magnet and a winding. The fixed magnetic core contains a base element which consists of a magnet with a magnetizing winding and with generating windings arranged on two sides of the magnet such as to provide for opposite magnetic flux reversals in the combined power winding when the movable magnetic core is moving. The magnetizing winding is fed by the power windings via a rectifier. The number of base elements is a multiple of 6 or 12. The base elements are offset from one another by an angle β = Т+ΔТ and are arranged uniformly at the vertices of regular polygons, where T is a period determined by the angular size of a tooth and a space of the rotor, and ΔТ is the same dimension divided by the number of phases required by the consumer. All of the power windings of the base elements are connected in series. The technical result is that of providing a multi-phase alternating voltage to the end consumer.
Owner:BAYALIEV OMIR KARIMOVITCH
Rotating electrical machine with superconducting elements and cryogenic enclosures
Disclosed is a rotating electrical machine with axial air gap, comprising two rotors, each provided with superconducting axial magnetic flux barrier elements around an axis of rotation and having, between them, axial magnetic flux passage areas, at least one armature, comprising windings and a superconducting field coil surrounding the elements and the armature and capable of inducing an axial magnetic field. Each armature is positioned between two of the rotors. The superconducting elements of the rotors are coaxial with one another and also the flux passage areas. A first annular cryogenic enclosure encloses the field coil and a second cryogenic enclosure encloses the two rotors and the armature or only one rotor, with a third cryogenic enclosure around the other rotor without the armature.
Owner:UNIVERSITY OF LORRAINE +1
Rotor supporting frame assembly, rotor and planar motor
ActiveCN224123947Ureduce frictionreduce wearMagnetic circuit shape/form/constructionPropulsion systemsElectric machinePlanar motor
The utility model provides a mover support frame assembly, mover and planar motor, the mover support frame assembly comprises a support frame, a rolling part and a backstop part, the support frame is connected with the mover, the support frame is provided with an accommodating groove, the rolling part is arranged in the accommodating groove, the backstop part is covered on the accommodating groove, a part of the rolling part is exposed outside the backstop part, and the backstop part is arranged in the accommodating groove. Thus, when the weight of an object borne by the mover exceeds the bearing range of the mover, the mover realizes relative movement with the stator through the rolling part, the friction force between the mover and the stator can be reduced, the abrasion between the mover and the stator is reduced, the service life of the planar motor is prolonged, and the application range of the planar motor is widened.
Owner:FOSHAN AUGMENTED INTELLIGENCE TECH CO LTD
A low eddy current r-t-b sintered magnet, a method for producing the same, and use thereof
PendingCN122177611AInorganic material magnetismInductances/transformers/magnets manufactureElectric machineSintered magnets
This invention discloses an R-T-B sintered magnet with reduced eddy current losses, its preparation method, and its application. The magnet has partition grooves on one or two orientation surfaces, where each orientation surface is perpendicular to the orientation direction of the magnet. The partition grooves extend through the magnet in a first extension direction but not in a second extension direction. The first extension direction of the partition grooves is perpendicular to the orientation direction of the magnet, and the second extension direction is parallel to the orientation direction of the magnet. By creating crisscrossing partition grooves on the magnet and filling them with an insulating layer, this invention increases the resistivity of a thin layer on the magnet's surface by a certain thickness, significantly reducing motor power loss due to eddy current effects. The insulating layer filling the grooves increases the resistivity of both the magnet surface and the grooves, effectively preventing conduction due to poor processing or current breakdown when the groove width is narrow. It also compensates for the reduction in mechanical strength caused by the grooving, ultimately resulting in a low-eddy-current, high-strength sintered magnet.
Owner:YANTAI ZHENGHAI MAGNETIC MATERIAL CO LTD
Preparation method of ferromagnetic annular rubber magnet
PendingCN121748152APermanent magnetsInductances/transformers/magnets manufactureVulcanizationMagnetization
The invention discloses a preparation method of a ferromagnetic annular rubber magnet, which comprises the following steps: providing a sheet material of the rubber magnet, and cutting the sheet material into strips to form a plurality of rubber magnetic strips; performing primary cold pressing treatment on the rubber magnetic strip, so that the two ends of the rubber magnetic strip are jointed to form a conical annular magnet; performing secondary cold pressing treatment on the conical annular magnet to form an annular magnet; and carrying out hot-pressing vulcanization, cooling shaping and magnetizing on the annular magnet in a high-intensity magnetic field to realize special magnetic circuit magnetization so as to obtain the ferromagnetic annular rubber magnet. According to the preparation method, the annular rubber magnet which is high in raw material utilization rate and has strong magnetism can be prepared.
Owner:EARTH PANDA ADVANCE MAGNETIC MATERIAL +1
shaft and electric motor with such a shaft
The present invention relates to a shaft (1) with a first shaft part (2) and a second shaft part (4) welded to it, - wherein the two shaft parts (2, 3) have an outer diameter d a exhibit - wherein the first shaft part (2) transitions via a step (5) into an axial extension (6) with an outer diameter d f transitions, whereby d applies f < d a , and where the outer diameter d f an inner diameter d w of the second wave part (4) corresponds to - wherein at a transition (7) from the step (5) to the axial extension (6) an annular groove (10) is provided which is oriented obliquely to the axial direction (8), the outer groove wall (11) and the inner groove wall (12) of which have an acute angle α to the axial direction (8), - where one radial thickness s a a step end face (14) at least approximately a radial thickness s bcorresponds to a wave end face (15) of the second wave part (4), - wherein the first wave part (2) extends over the entire radial thickness s a the step end face (14) is welded to the shaft end face (15) of the second shaft part (4).
Owner:MAHLE INT GMBH
Iron core assembly, linear motor, suspension system and vehicle
ActiveCN222356046UImprove job stabilityExtended service lifeMagnetic circuit shape/form/constructionPropulsion systemsControl engineeringElectric machinery
The utility model discloses an iron core assembly, a linear motor, a suspension system and a vehicle, the iron core assembly comprises a central shaft, the peripheral wall of the central shaft is provided with a first positioning part extending along the axial direction; the central shaft is sleeved with the iron core unit, a second positioning part is arranged on the inner circumferential wall of the iron core unit, and the first positioning part and the second positioning part are matched to limit the central shaft and the iron core unit in the circumferential direction; and the first positioning part and the central shaft are integrally formed, or the second positioning part and the iron core unit are integrally formed. According to the iron core assembly designed by the utility model, the matching surface of the first positioning part and the second positioning part is the arc-shaped surface, so that the matching surface of the first positioning part and the second positioning part in the circumferential direction is larger and the transition is smoother; the shearing stress surface area between the first positioning part and the second positioning part is increased, the problem of stress concentration can be avoided, and the bearing capacity of the first positioning part and the second positioning part to shearing force is improved.
Owner:BYD CO LTD
Magnetic steel for motor
The utility model discloses a magnetic steel used for a motor. The magnetic steel comprises a tile-shaped body. The body comprises a first tile face, a second tile face, a first edge, a second edge, a first side end and a second side end. The first tile face and the second tile face are both in a curved surface shape and are oppositely arranged, the first edge and the second edge are oppositely arranged, and the first side end and the second side end are oppositely arranged. The first side end comprises a first tangent plane intersected with the first tile surface and a first cut plane intersected with the second tile surface, and the first tangent plane and the first cut plane are arranged in an intersected manner; the second side end comprises a second tangent plane intersecting with the first tile face and a second cut plane intersecting with the second tile face, and the second tangent plane and the second cut plane are arranged in an intersecting mode. According to the magnetic steel of the utility model, through the arrangement of the first tangent plane and the second tangent plane, the size is reduced, the material consumption is saved, the cost is reduced, and the electromagnetic performance of a motor is not affected through the arrangement of the first cut plane and the second cut plane.
Owner:SUZHOU JIADIAN PERMANENT MAGNET MOTOR TECH CO LTD
A multi-stage adjustable speed power shunt motor system and its control method
PendingCN122137140AAssociation with control/drive circuitsElectric motor controlElectromagnetic couplingConstant power
This invention discloses a multi-stage adjustable speed power shunt motor system and its control method, relating to the field of motor technology. The system includes at least two stages of motor units arranged sequentially along the axial or radial direction; the rotor of the first-stage motor unit serves as the total power output end; the rotor of the second-stage motor unit is driven by the stator of the previous-stage motor unit, driving the stator to rotate; except for the last stage, all other stators are rotatable structures. By controlling the rotation direction and speed of the rotors of the second-stage and subsequent motor units, the relative speed between the stator and rotor of the previous-stage motor unit is adjusted, achieving electromagnetic coupling and power shunt, thus changing the system's total output torque, speed, and back electromotive force. This invention has a compact structure, achieves optimized efficiency under all operating conditions, balances low-speed high torque and high-speed constant power operation, and optimizes both drive and power generation performance, making it suitable for electric vehicles, wind power generation, industrial transmission, and other fields.
Owner:冯博文
A wound core for an electric machine
ActiveCN120454343BCleaning using gasesMagnetic circuit shape/form/constructionElectric machineElectrical and Electronics engineering
The application belongs to the technical field of winding type iron cores, in particular to a winding type iron core for a motor, which comprises an iron core body, a support frame is arranged around the iron core body, support rods are arranged in an array inside the support frame, annular grooves are symmetrically arranged inside the support frame, sliding rings are arranged inside the annular grooves, a driving assembly for driving the sliding rings to move is arranged inside the support frame, limit grooves are symmetrically arranged on the annular grooves, and positioning blocks are arranged inside the limit grooves. The winding type iron core for the motor is convenient for quickly positioning and installing the position of the winding type iron core for the motor through the positioning blocks and the sliding rings, the support frame and the iron core body can be moved to the installation position inside the motor, the positioning blocks can be pushed to slide inside the limit grooves by rotating the knob, the limit grooves can guide the positioning blocks to move stably, the position of the support frame can be positioned, the position of the winding type iron core for the motor can be positioned and installed, and the installation efficiency is improved.
Owner:青岛盛裕精密模具有限公司
Improved internally adaptive variable generator and motor
A dynamoelectric machine includes an inner cylindrical stator, an outer cylindrical stator, and a cylindrical rotor radially disposed between the inner and outer cylindrical stators. The cylindrical rotor is rotatable relative to the inner and outer cylindrical stators. The cylindrical rotor includes at least one rotating conductor including a mixture of electrically conductive and ferromagnetic materials. The inner and outer cylindrical stators include at least one of: (i) gradient magnetic field strength regions with varying magnetic flux density longitudinally downward along the axial direction of the dynamoelectric machine; (ii) different radial diameters of overlapping rotor and stator portions at different axial locations of the dynamoelectric machine; and (iii) electromagnets configured to be selectively energized based on a changing variable.
Owner:NEXTPOWER360 CO
Motor Structure
To reduce a diameter of a motor and to miniaturize the motor without forming a through hole for a bolt at an outer edge of a stator.SOLUTION: A motor structure according to the present invention comprises: a split ring-shaped stator (5) provided inside a cylindrical case (1); a front lid (12) provided on a front side (4) of the cylindrical case (1); a rear lid (11) provided on a rear side (3) of the cylindrical case (1); a rotor rotatably provided at a shaft center position of the ring-shaped stator (5); a plurality of stator grooves (6) formed on an outer peripheral surface (5a) of the ring-shaped stator (5); and a plurality of case grooves (2) formed on an inner peripheral surface (1a) of the cylindrical case (1), in which each stator groove (6) and each case groove (2) form a complete round or non-complete round circular hole (10) with positions of the cylindrical case (1) and the ring-shaped stator (5) in a circumferential direction (50) coincident with each other, and a fastening bolt (20) penetrates into the circular hole (10).SELECTED DRAWING: Figure 1
Owner:TAMAGAWA SEIKI CO LTD