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Four-phase direct current motor and generator
PendingUS20260121463A1Torque ripple controlElectric motor controlDC - Direct currentElectric machine
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.
Owner:FORCE EQUALS MASS TIMES ACCELERATION INC
Rotor core and rotating electric machine
A rotor core of a rotary electric machine according to the present application is capable of adjusting the flow of magnetic flux at the tip of a tooth. The rotor core of the rotary electric machine is provided with a slot portion in which a coil is wound, and a tooth portion that forms a space in which the coil is wound in the slot portion, a boundary portion of the inner peripheral side of the tooth portion with the slot portion being formed by a flat portion and a curved portion, the flat portion being formed in a straight line perpendicular to the radial direction, the curved portion being formed in a curved line continuous with the flat portion via a corner provided at the boundary with the flat portion, the curved portion being located at a position closer to the tip than the flat portion in the circumferential direction of the tooth portion.
Owner:ASTEMO LTD
Two-antipode magnetic steel and one-pair carbon brush motor for short-time working mode
The utility model relates to a two-antipode magnetic steel and one-pair carbon brush motor for a short-time working mode, and solves the technical problems of low production efficiency and high cost caused by the structure in the prior art. The motor comprises a casing, two carbon brushes, four magnetic steels and a rotor, wherein the two carbon brushes and the four magnetic steels are arranged on the inner wall of the casing; the included angle between the two carbon brushes is 90 degrees; the rotor is provided with an armature with a six-groove structure and six commutators, or is provided with a 12 * N groove structure and 12 * N sheets; six grooves of the armature and six commutators form a group; the armature part corresponding to each groove is marked as a-f, and the rising piece between the armature d and the armature e is taken as a starting point and marked as 1-6; the winding structure is as follows: a lead is led in from a riser 3 # and a riser 6 #, is wound along an armature d and an armature a and then is led out along a riser 1 #; a lead is led in along the riser 2 # and the riser 5 #, is wound along the armature c and the armature f and then is led out along the riser 6 #; a wire is led in along the rising piece 1 # and the rising piece 4 #, is wound along the armature b and the armature e, and then is led out along the rising piece 5 #.
Owner:XIAN JINGDONG MICRO MOTOR TECHNOLOGY CO LTD
48V direct current brush motor
ActiveCN224249567UMagnetic circuit rotating partsMagnetic circuit stationary partsElectric machineMagnetic poles
The utility model discloses a 48V DC brush motor comprising a housing, a stator assembly, a rotor assembly, a commutator and a carbon brush. The number of the stator assembly is an even number of stator magnetic shoes; the rotor assembly comprises a rotor shaft and a rotor iron core fixed on the periphery of the rotor shaft, wire slots are formed on the periphery of the rotor iron core at intervals, the number of the wire slots is an odd number, winding coils are filled in the wire slots clockwise, and the span of the winding coils is 3; the commutator is fixed on the periphery of the rotor shaft, the carbon brush comprises a first carbon brush and a second carbon brush, and the included angle between the first carbon brush and the second carbon brush is 90 degrees. According to the utility model, the structural arrangement of the wire ducts, the magnetic poles, the carbon brushes and the windings is optimized, and the DC brush motor which is stable in commutation and long in service life is provided.
Owner:ZHIDE MOTOR SUZHOU CO LTD
Coreless motor
To change properties of a motor without lowering the degree of freedom in designing the motor, a coreless motor (100) includes a rotating shaft (20); a coil (60) that is formed by winding a conductive wire (61) into a cylindrical shape, the coil being configured to rotate together with the rotating shaft (20); and a cylindrical magnet (30) that is disposed inside or outside the cylindrical coil (60). An angle interval (β) about an axis (center C) of the rotating shaft (20) between conductive wire portions (as one example, between two parallel portions (62), (62)) in a single winding in the coil (60) is set to be different from an angle interval (a) about the axis (center C) of the rotating shaft (20) between magnetic poles (30N, 30S) of the magnet (30).
Owner:CITIZEN MICRO CO LTD +1
Coreless motor
In order to improve motor characteristics, this coreless motor (100) is provided with: a rotary shaft (20); a coil (60) which is formed in a cylindrical shape by winding a conductor (61) and rotates integrally with the rotary shaft (20); and a cylindrical magnet (30) which is disposed inside the cylindrical shape of the coil (60). One winding of the coil (60) is formed in a hexagonal shape having parallel sections (62) which are parallel to an axial direction (center C direction) of the rotary shaft (20) and two oblique side portions (63, 64) which are inclined with respect to a surface orthogonal to the center C direction and connected to both ends of the parallel sections (62), wherein the oblique side portions (63, 64) are formed in a curved shape protruding from the inner side toward the outer side of the one winding of the coil (60), and a tangential angle (θ) between a tangential line of the oblique side portion (63) drawn from a vertex where two adjoining oblique side portions (63, 63) in the one winding of the coil (60) are connected together at one end and a surface orthogonal to the rotary shaft (20) is set in a range of 15 [degrees] to 50 [degrees].
Owner:CITIZEN MICRO CO LTD +1
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.
Owner:AISIN CORP
Method for operating an electric motor, computer program, computer program product, system, and vehicle
The invention relates to a method for operating an electric motor for driving a vehicle, wherein in order to separately excite a rotor of the electric motor, said rotor being arranged on a rotor shaft, at least one first and second contact brush (4, 6) are pressed against paired contact rings (8, 10) of the rotor shaft in a quality-based manner such that a sufficient contact of the contact rings (8, 10) is produced by the contact brushes (4, 6) for a given excitation current while applying as little pressure as possible. The invention additionally relates to a computer program, to a computer program product, to a system, and to a vehicle.
Owner:SCHAEFFLER TECHNOLOGIES AG & CO KG
Winding field rotor
In a winding field type rotating electric machine, a winding field rotor (60) includes a rotor core (61) having main pole portions (62) provided for each magnetic pole arranged in a circumferential direction and protruding in a radial direction, and a field winding (70) wound around the main pole portions. The field winding has coil bodies (90) formed by winding a conductor wire in multiple layers in the radial direction for each of the main pole portions, and each of the coil bodies is connected in series in the circumferential direction. Each of the coil bodies has an inner end (93) which is one end of the conductor wire at a position on a radially inner side of the coil body, and an outer end (94) which is the other end of the conductor wire at a position on a radially outer side of the coil body. In the coil body, the inner end is connected to the inner end of another coil body adjacent to the coil body on one circumferential side, and the outer end is connected to the outer end of another coil body adjacent to the coil body on the other circumferential side.
Owner:DENSO CORP
High overload three-phase brushless motor
ActiveCN121193043BReduce axial movementreduce gapDC commutatorSupports/enclosures/casingsBrushless motorsElectric machinery
The application relates to the technical field of motor equipment, and discloses a high-overload three-phase brushless motor, which comprises a shell, a plurality of insertion grooves are formed in the side wall of the shell, a bolt is slidably connected in the insertion grooves, and a rotating shaft is rotatably connected in the shell. When the spring elasticity is used to reduce the gap and the running deviation of the rotating shaft, the situation that the rotating shaft and the magnetic steel are damaged or rubbed during the rotation process under the high-overload condition due to the excessively large gap formed between the rotating shaft and the surrounding structure under the high-overload condition can be reduced, the operation accuracy and stability of the equipment during the high-overload process are ensured, and the reliability of the equipment during the operation is improved.
Owner:XIAN VISION OPTO-ELECTRONIC CO LTD
Coreless brush motor and gear motor system
The utility model relates to the technical field of motors, in particular to a hollow cup brush motor and gear motor system, which comprises a casing, two bearings, a stator assembly and an armature cup assembly, a first mounting hole and a second mounting hole are correspondingly arranged at the closed ends of a cover body and the casing, and the two bearings are respectively mounted in the first mounting hole and the second mounting hole. A first mounting gap is formed between the peripheral side of the coil cup and the inner wall of the mounting cavity, the commutator is inserted into one end, close to the cover body, of the coil cup, the rotating shaft penetrates through the stator assembly and the commutator, the two ends of the rotating shaft are rotationally connected to the two bearings respectively, and at least one end, close to the cover body, of the rotating shaft is an open bearing; and the first mounting gap is communicated with the external working environment. When the hollow cup brush gear motor works in an oil bath environment, the pressure inside and outside the motor can be kept balanced, the running state without pressure difference is achieved, the working load is reduced, the working efficiency is improved, and the service life is prolonged.
Owner:SHENZHEN CASIC MOTOR SYSTEM CO LTD
Fixing structure of choke coil and motor
A choke coil is mechanically fixed without using an adhesive, and a fixed state is maintained for a long period of time. A fixing structure of a choke coil electrically connected to a brush that is in sliding contact with a commutator and housing a ferrite core inside includes: a bottom surface portion where the choke coil is placed; a housing wall portion erected from the bottom surface portion and forming a first space that houses the choke coil with the bottom surface portion; an elastic portion that is formed by notching a part of the housing wall portion and capable of elastic deformation; and a pressing portion that presses the choke coil via the elastic portion by biasing the elastic portion to an inside of the first space, and fixes the choke coil between the pressing portion and the inner surface of the housing wall portion.
Owner:MABUCHI MOTOR CO LTD
Electric motors and electric blowers
Provided is an electric motor capable of reducing influence of magnetic flux, which is generated by an armature winding, on a constant force spring. A magnetic motor (1) comprises: a rotor (20) having a rotation shaft (21), and a commutator (30) attached to the rotation shaft (21); a brush (40) adjacent to the commutator (30); a plurality of armature windings (22) connected to the commutator (30); a constant force spring (110); and a soft magnetic member (second bracket (102)) which is disposed between the plurality of armature windings (22) and the constant force spring (110), and shields magnetic flux generated by the plurality of armature windings (22). The constant force spring (110) is formed by a band-like plate material, and presses the brush (40) against the commutator (30).
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Brush-type motor
PCT designated stageWO2026127197A1
A brush-type motor, according to the present invention, comprises: a stator; a rotor; a brush making contact with the rotor; and a brush hold for securing the brush, wherein the brush hold is formed in a pocket shape into which the brush is inserted, a guide slot is formed in a side surface of the brush, and a guide means is provided to the brush hold. The guide means includes a guide rail which is provided in one side surface of the brush hold and is formed so as to be projected toward the inside of the brush hold so as to be fitted into the guide slot. The guide rail is formed by inwardly bending any one front end among two front ends which are formed by bisecting the one surface of the brush hold in the length direction. The guide means includes a guide wire which is mounted in one side surface of the brush hold and protrudes toward the inside of the brush hold. The guide slot is formed so as to extend in the length direction of the brush and is formed in each of side surfaces of the brush which face each other, and the guide means includes leaf springs which are mounted in the brush hold so as to be fitted into the respective guide slots. The guide means includes torsion springs which are mounted in the brush hold so as to be fitted into the respective guide slots.
Owner:S&T DAEWOO
Electric power tool of hall commutation structure
The application discloses a kind of electric tools of hall commutation structure, and relate to the technical field of electric tool.Its technical points are: including left casing, right casing, commutation fixed seat, commutation lever, steel ball, small first spring, commutation rod, first magnet, second magnet, first hall sensor, second hall sensor, control board assembly, by control board assembly to control motor rotation and then realize commutation function, the application has the advantages: using hall sensor can achieve contactless mode output commutation signal, without mechanical friction, so that tool assembly is simple, long service life, stable work.
Owner:KEN HLDG CO LTD +1
Compact generator and hub dynamo
The present invention is a compact generator 1 that converts a rotational force rotating about a base axis J1 into electric power. The present invention comprises: a power generation member 80 that is positioned in the surroundings of the base axis J1, and generates power by rotating about a rotation axis J2 which is eccentric from the base axis J1; and a speed change member 50 that is positioned in the surroundings of the base axis J1, in a condition of being concentrically linked to the power generation member 80. The speed change member 50 increases the speed of the rotation of the rotational force and transmits the result to the power generation member 80.
Owner:C I TAKIRON CORP
Method, computer program, computer program product, system and vehicle for operating electric motor
The invention relates to a method for operating an electric motor for driving a vehicle, in which at least a first and a second contact brush (4, 6) are pressed against an associated slip ring (8, 10) of a rotor shaft in a mass-based manner in order to externally excite a rotor of the electric motor arranged on the rotor shaft, such that the slip ring (8, 10) is pressed against the associated slip ring (8, 10) of the rotor shaft for a given excitation current. The contact brushes (4, 6) are in sufficient contact with the slip rings (8, 10) with as little pressing force as possible. A computer program, a computer program product, a system and a vehicle are also presented.
Owner:SCHAEFFLER TECHNOLOGIES AG & CO KG
METHOD AND DEVICE FOR CONTROLLING AN ANCHOR ROTATING IN A MAGNETIC CIRCLE
ActiveDE602020069810T2Magnetic circuit stationary partsPermanent-magnet clutches/brakesBiochemistryBiomedical engineering
Owner:HANAGAN MICHAEL HOLLISTER
An outer rotor electric motor
ActiveCN115632510BReduce layoutlow costMagnetic circuit rotating partsDC commutatorElectric machineClassical mechanics
The application provides an outer rotor motor, which comprises a rotor assembly, a rotor shell, a stator assembly and a bearing. The end of the rotor assembly is connected with the axial end of the rotor shell, so that the rotor assembly can rotate integrally with the rotor shell. The bearing is located at the inner periphery of the axial end of the rotor shell to support the rotor shell. The axial other end of the rotor shell extends to the radial outer periphery of at least part of the structure of the stator assembly. The rotor shell can be driven to rotate by the stator assembly, so as to drive the rotor assembly to rotate integrally. According to the application, the arrangement of one bearing can be effectively reduced. Compared with the conventional outer rotor motor structure which needs to be provided with two bearings, or the scheme of one long bearing, the cost of one small but high-priced bearing is effectively saved, so that the cost of the outer rotor motor is reduced, and the noise and vibration are also reduced.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Constant micro power energy system (CMPES) device
A constant micro power energy system (CMPES) device to harness sustainable energy sources and generate power including a main body structure having a base plate, a frame extending from the base plate, and a top plate positioned at the top of the frame. The CMPES device includes a flask barrel positioned in the frame and motors positioned on the top plate. The CMPES device includes a ring gear connecting the flask barrel and a motor shaft of the motor. The CMPES device includes disc generators positioned inside the flask barrel. The motors supply power to drive the flask barrel to rotate constantly at a predetermined speed in order to generate continuous and simultaneous Alternating Current (AC) and Direct Current (DC) electrical power output. The motors facilitate direct transmission to the disc generators in order to provide the electrical power output to panel systems connected to the CMPES device.
Owner:SHAKARZAHI AZIZ
Brushless DC motor
ActiveCN114982105Breduce noisereduce vibrationMagnetic circuit rotating partsMagnetic circuit stationary partsImpellerMagnet coil
An EC motor with a stator and a rotor mounted to a shaft. The motor has a cooling system, a molded stator housing, and an optimized rotor. The stator has teeth wound with electromagnetic coils. The teeth and coils are circumferentially distributed, with gaps between adjacent coils. The stator is molded with plastic, thereby forming axially oriented cooling channels between adjacent coil sections. Subsequently, an impeller fan draws air into the motor through an air inlet connected to an air passage. The impeller fan guides the air through the axially oriented cooling channels in the stator and exits through the air outlet. The optimized inner rotor has permanent magnets and silicon steel laminations that are circumferentially spaced and extend outward from a central bushing. Rectangular magnets are inserted in the gaps between the laminations. Wedge-shaped magnets are radially aligned with the laminations and located between the laminations and the bushing.
Owner:YIWEIDA MFG CO LTD
Brushless DC motor
An EC motor with a stator and a rotor mounted to a shaft. The motor has a cooling system, a molded stator housing, and an optimized rotor. The stator has teeth wound with electromagnetic coils. The teeth and coils are circumferentially distributed, with gaps between adjacent coils. The stator is molded with plastic, thereby forming axially oriented cooling channels between adjacent coil sections. Subsequently, an impeller fan draws air into the motor through an air inlet connected to an air passage. The impeller fan guides the air through the axially oriented cooling channels in the stator and exits through the air outlet. The optimized inner rotor has permanent magnets and silicon steel laminations that are circumferentially spaced and extend outward from a central bushing. Rectangular magnets are inserted in the gaps between the laminations. Wedge-shaped magnets are radially aligned with the laminations and located between the laminations and the bushing.
Owner:YIWEIDA MFG CO LTD
Measuring device for testing an electric drive motor of a motor vehicle, and method for testing an electric drive motor of a motor vehicle
Measuring device for testing an electric drive motor (2) of a motor vehicle, comprising - an electric drive motor to be tested (2), - a first drive shaft (5) and a second drive shaft (9) extending from the drive machine (2) to opposite sides and which can be driven by the drive machine (2), - a first gearbox (7), wherein the first drive shaft (5) is connected to a gearbox input (6) of the first gearbox (7), - a second gearbox (11), wherein the second drive shaft (9) is connected to a gearbox input (10) of the second gearbox (11), - a first output shaft (14) connected to a gearbox output (13) of the first gearbox (7) and an input (15) of a first electric load machine (16) which is identical in construction to the drive machine (2), - a second output shaft (18) connected to a gearbox output (17) of the second gearbox (11) and an input (19) of a second electric load machine (20) which is identical in construction to the drive machine (2), as well as - a power supply (23) connected to the drive machine (2) and the first and second load machines (16, 20).
Owner:AUDI AG
A motor with anti-electromagnetic interference function
The utility model relates to motor technical field, concretely is a kind of motor with anti-electromagnetic interference function.The utility model discloses a kind of motor with anti-electromagnetic interference function, including shell, the shell outside power supply line inlet is provided with PCB board, first wire hole and second wire hole and first mounting hole and second mounting hole are equipped on PCB board, and PCB board is fixed and grounded by first mounting hole and second mounting hole with shell installation and ground conduction, at least one group X2Y capacitor is arranged on the PCB board, positive line is electrically connected with the one end of X capacitor of X2Y capacitor and the one end of one Y capacitor, negative line is electrically connected with the other end of X capacitor of X2Y capacitor and the one end of another Y capacitor.The utility model has the advantages of further amplifying the shielding effect on electromagnetic radiation, effectively reducing electromagnetic radiation through power line conduction interference to power grid or other equipment.
Owner:ZHEJIANG LINIX MOTOR CO LTD
Rotor for an electric motor
The invention relates to a rotor (8) of an electric motor (6), comprising a rotor package (10) with a plurality of radially directed rotor teeth (Z) and with a commutator (14) with a number of commutator bars (L) which is twice as large as the number of rotor teeth (Z), wherein diametrically opposed commutator bars (L) are respectively connected to a contact bridge (K), as well as with a rotor winding (12) comprising a plurality of coils (S1, S2) wound on the rotor teeth (Z), wherein each coil (S1, S2) has a first and second coil end and, wherein the first and second coil ends of each coil (S1, S2) are connected directly to commutator bars (L) that are not adjacent to each other.
Owner:BROSE FAHRZEUGTEILE GMBH & CO KG
Frame with a clamping device, bicycle with this frame, method for manufacturing this frame
ActiveDE102012010045B4Magnetic circuit stationary partsDC commutatorVehicle frameClassical mechanics
Owner:STORCK BICYCLE
COVER FOR A ROTATING ELECTRIC MACHINE
Owner:VALEO ELECTRIFICATION
Adding homopolar rotors in series without sliding contacts
PCT designated stageWO2026035704A1DC commutatorStructural associationElectrical connectionElectrical connector
A dynamoelectric machine including stator layers spaced radially apart from one another, rotor layers provided between adjacent ones of the stator layers and rotatable through a fixed magnetic field generated by the stator layers, electrical connectors to electrically connect axial ends of adjacent ones of the rotor layers in series, parallel, or a combination of series and parallel, and at least one flux return mitigation assembly to interact with flux of the fixed magnetic field generated by the stator layers. A portion of one of the electrical connectors passes through an empty center portion of the at least one flux return mitigation assembly. The at least one flux return mitigation assembly includes magnetic structures extending between a gap between the stator layers that are spaced radially apart from one another.
Owner:IACOVELLI BENEDETTO ANTHONY
Cover for a rotating electric machine
The present invention relates to a cover for a rotating electric machine comprising an axis of rotation (X), the cover (42) being designed to be arranged on an inverter (36) of the machine (10). The cover comprises a skirt (43) extending in a radial direction and forming a perimeter of the cover, the perimeter defining an inner portion of the cover and an open area (44) arranged in the inner portion and comprising at least one axial opening (45). The open area (44) extends over at least 50% of the inner portion of the cover.
Owner:VALEO ELECTRIFICATION
Dual-rotating differential electric motor assembly
ActiveJP7864068B2Association with control/drive circuitsRotary current collectorElectric machineryPhysics
An improved counter-rotating (CR) differential electric motor assembly is utilized to power an aircraft or fan for moving gas, and includes two counter-rotating propellers that can be mounted to horizontal flight and vertical takeoff aircraft or fan housings in a space similar in size to the mounting space for a conventional motor having only one propeller, and includes a hollow central shaft and a slip ring assembly mounted within, slightly above, or completely above the counter-rotating components and around the hollow central shaft.
Owner:CR FLIGHT LLC