93 results about "Transverse flux" patented technology

Examples are disclosed that relate to an electric machine (102) that achieves independent speed, variable frequency power generation and has increased power density, efficiency, reliability, and reduced complexity relative to conventional electric machines. In one example, an electric machine (102) includes a stator (200), a first stationary winding (202) coupled to the stator (200), a second stationary winding (204) coupled to the stator (200), and a rotor (206). The second stationary winding (204) includes a plurality of winding segments (218) corresponding to a number of phases of power of the electric machine (102). The rotor (206) extends through the stator (200) and the second stationary winding (204). The rotor (206) includes a plurality of rotor segments (220.1, 220.2, 220.3). Each rotor segment (220) of the plurality of rotor segments (220.1, 220.2, 220.3) includes a plurality of pole lobes (222.1, 222.2, 222.3) that extend radially from the rotor segment (220). Two or more pole lobes (222) of each rotor segment (220) are located on opposing sides of a corresponding winding segment (218) of the second stationary winding (204).

The invention relates to the technical field of permanent magnet generators, and discloses a high-speed high-power-density transverse flux permanent magnet generator which comprises a machine shell assembly, a power generation unit body is arranged in the machine shell assembly, the power generation unit body comprises a stator assembly and a rotor assembly, and the rotor assembly rotates in the stator assembly to achieve power generation; the stator assembly comprises a winding cooling mechanism and a concentrated winding, the winding cooling mechanism comprises a front semi-ring cooling sleeve, a rear semi-ring cooling sleeve, an upper diversion bridge and a lower diversion bridge, the front semi-ring cooling sleeve and the rear semi-ring cooling sleeve are buckled to form a winding cooling ring, and an inner ring flow channel, a mounting ring cavity and an outer ring flow channel which are concentric are formed in the winding cooling ring; the upper diversion bridge and the lower diversion bridge are used for communicating the inner ring flow channel with the outer ring flow channel to form a cooling passage, and the concentrated winding is adaptively arranged in the mounting ring cavity, so that the winding can be directly cooled in the generator, and the contradiction between multi-polarization and high-speed and high-frequency is effectively relieved; the torque density and the rotating speed range of the transverse flux permanent magnet generator can be simultaneously improved.

A transverse flux machine (TFM) includes a rotor assembly configured to rotate about an axis and including a plurality of segments stacked axially. Each segment of the plurality of segments includes a plurality of rotor cores and a plurality of permanent magnets. The TFM also includes a stator assembly including a transverse flux core configured to direct a magnetic flux in each of an axial direction and a radial direction toward the rotor assembly. A steer-by-wire system for a vehicle includes a handwheel actuator coupled to apply a torque to a steering wheel. The handwheel actuator includes a transverse flux machine (TFM) which includes a stator assembly and a rotor assembly configured to rotate about an axis. The rotor assembly includes a plurality of segments stacked axially. Each segment of the plurality of segments includes a plurality of rotor cores and a plurality of permanent magnets.

A method of treating an iron-cobalt component is disclosed. The method comprises: heat treating the component using a temperature of at least 700° C.; applying a static magnetic field of at least 3000 A / m to the component during the heat treatment. Also disclosed is a furnace for treating the iron-cobalt component, and a method of forming a stator for a transverse flux electric machine.

A transverse flux machine (TFM) includes: a rotor configured to rotate about an axis and having a plurality of pairs of permanent magnets, with flux concentrating and flux diverging cores alternatively placed between the permanent magnets, each of the pairs of permanent magnets arranged to generate a magnetic flux in a circumferential direction into the flux concentrating core and away from the flux diverging core; and a stator including a transverse flux core configured to direct the magnetic flux in each of a radial direction and an axial direction. The rotor further includes a non-magnetic material located between the permanent magnets of each of the pairs of the permanent magnets, adjacent to the flux concentrating core and opposite from the stator, the non-magnetic material having a thickness (TH) in a radial direction. A steer-by-wire system for a vehicle includes a handwheel actuator including a TFM coupled to a steering wheel.

A transverse flux machine (TFM) comprises: a rotor configured to rotate about an axis and having a plurality of pairs of permanent magnets, with flux-concentrating and flux-diverging cores alternately placed between the permanent magnets, each pair of permanent magnets being arranged to generate a magnetic flux in a circumferential direction into the flux-concentrating core and away from the flux-diverging core; and a stator comprising a transverse flux core configured to direct the magnetic flux in each of a radial and an axial direction. The rotor further comprises a non-magnetic material arranged between the permanent magnets of each pair of permanent magnets adjacent to the flux-concentrating core and opposite the stator, the non-magnetic material having a thickness (TH) in a radial direction.A steer-by-wire system for a vehicle includes a handwheel actuator, which incorporates a TFM that is coupled to a steering wheel.

The invention discloses a transverse magnetic flux linear motor adopting a Y-shaped iron core and a Halbach array, belongs to the field of permanent magnet linear motor design, and aims at solving the problems that a traditional transverse magnetic flux linear motor is low in permanent magnet utilization rate, large in magnetic leakage and insufficient in power density. The device comprises a primary part and a secondary part, the primary part comprises stator iron cores which are sequentially arranged in the axial direction, each stator iron core is provided with three armature modules which are evenly distributed in the circumferential direction, and each armature module comprises long armature teeth, short armature teeth and armature windings. The tail ends of the long and short teeth adopt an inclined air gap and magnetism gathering pole shoe design; the secondary part comprises a Y-shaped secondary pole iron core and a Halbach permanent magnet array on the surface of the Y-shaped secondary pole iron core, and the permanent magnet array is divided into three areas in the circumferential direction, and the three areas correspond to the three-phase armature modules of the primary part respectively; the permanent magnets in each area are formed by staggering N poles and S poles in the axial direction, and the adjacent areas are staggered in the axial direction.

The invention provides a double-side transverse flux linear motor which comprises a single-phase primary unit, and the single-phase primary unit comprises a primary winding, a primary permanent magnet and two primary iron cores which are arranged in a staggered manner. Each primary iron core comprises a wide tooth, two narrow teeth located on the left side and the right side of the wide tooth and a magnet yoke connected to the first end of the wide tooth and the first end of each narrow tooth, the primary winding is arranged on the wide teeth of the two primary iron cores in a surrounding mode, and in the same primary iron core, the wide teeth and the two narrow teeth are spaced front and back in the linear motion direction of the primary iron cores. According to the invention, the mutual inductance between the wide teeth and the narrow teeth can be reduced, the induced current caused by the mutual inductance between the wide teeth and the narrow teeth is reduced, the probability of high-temperature burning loss of the primary winding and high-temperature demagnetization of the primary permanent magnet is reduced, and the mutual limitation of the sizes of the wide teeth and the narrow teeth in the same plane is avoided; and on the premise of the same motor performance, the structure of the front-back staggered primary iron core is more compact.

A modular stator assembly for an electric machine comprises a plurality of stator pole modules distributed circumferentially, each module including at least one press-formed phase coil. The machine includes a rotor assembly, which may comprise two or more rotors, having permanent magnets. These magnets are positioned to substantially surround each stator pole, with their magnetic fields oriented either in-plane or through-plane. Energizing a phase coil generates a magnetic field, creating a complete magnetic circuit that flows from the stator poles through the surrounding permanent magnets and, optionally, the back iron. This interaction between the stator's magnetic field and the permanent magnets produces torque, causing rotation of the rotor assembly relative to the stator assembly.

The present application belongs to the field of motor technology, and specifically relates to a disc-type transverse flux permanent magnet brushless motor with a double-step stator, comprising a stator and a rotor, wherein the stator comprises a stator disc and phase armature units arranged in sequence along the circumferential direction at the lower part of the stator disc, and the rotor comprises a rotor disc and a permanent magnet array fixed circumferentially to the upper part of the rotor disc. Each phase armature unit comprises two sub-armature units, and the n phase armature cores of each sub-armature unit are alternately arranged along the circumferential direction, and two adjacent phase armature cores are arranged opposite to each other, which can save winding materials and facilitate assembly, and can also install more phase armature cores to improve torque density; a true fractional slot concentrated winding method is used to reduce harmonics. The present application is suitable for low-speed and high-torque scenarios, and has the advantages of convenient assembly and less consumables, as well as small temperature rise, high torque density and few harmonics.

A transverse flux machine (TFM) includes a rotor assembly configured to rotate about an axis and including a plurality of segments stacked axially. Each segment of the plurality of segments includes a plurality of rotor cores and a plurality of permanent magnets. The TFM also includes a stator assembly including a transverse flux core configured to direct a magnetic flux in each of an axial direction and a radial direction toward the rotor assembly. A steer-by-wire system for a vehicle includes a handwheel actuator coupled to apply a torque to a steering wheel. The handwheel actuator includes a transverse flux machine (TFM) which includes a stator assembly and a rotor assembly configured to rotate about an axis. The rotor assembly includes a plurality of segments stacked axially. Each segment of the plurality of segments includes a plurality of rotor cores and a plurality of permanent magnets.

A method 600 of treating an iron-cobalt component is disclosed. The method comprises: 604 heat treating the component using a temperature of at least 700 °C; 606 applying a static magnetic field of at least 3000 Aim to the component during the heat treatment. Also disclosed is a furnace 500 for treating the iron-cobalt component, and a method of forming a stator 12 for a transverse flux electric machine 14.

The present invention, in some embodiments, is a method the includes obtaining a sheet of a non-ferrous alloys as feedstock having a first edge and a second edge, heating the feedstock using a transverse flux induction heating system to form a heat treated product and concomitant with the heating step, cooling at least one of the first edge and the second edge of the feedstock by cross-flowing at least one fluid across the at least one of the first edge and the second edge of the feedstock.

The present invention provides a bilateral modular permanent magnet transverse flux linear motor, which relates to the technical field of linear motors and includes a motor housing, the motor housing including a base housing, adjustment slots fixedly installed on both sides of the base housing, permanent magnet support plates installed in the adjustment slots for transverse sliding, a permanent magnet bracket fixedly installed at the front end of the permanent magnet support plate, a permanent magnet fixedly installed on the inner wall of the permanent magnet bracket, a motor output shaft installed for transverse sliding at the center of the base housing, the motor output shaft including an outer output shaft, the outer output shaft installed for transverse sliding at the center of the base housing, a coil assembly ring installed for transverse rotation along the axis in the middle section of the outer output shaft, two pairs of coil support plates fixedly installed on the outer ring of the coil assembly ring, the present invention uses two pairs of rotatable coil support plates to alternately cooperate with the permanent magnet for magnetic field, thereby reducing the influence of the coil's thermal radiation on the permanent magnet and improving the service life of the permanent magnet.

A cylindrical submersible oil horizontal-flux permanent magnet linear motor belongs to the technical field of linear motors. Four primary salient pole teeth are provided on the inner circular surfaces of the first and second yokes of the primary iron core. The first and second primary iron cores are coaxially fixedly connected and have an installation angle difference of 60°. One pair of the primary salient pole teeth of the first and second primary iron cores overlap in position, and the other pair of primary salient pole teeth are staggered in position. Windings are installed on the staggered primary salient pole teeth. Six secondary salient pole teeth are evenly distributed on the outer circular surface of the yoke of the first secondary iron core. Four secondary rectangular grooves are opened on the end surface of the yoke of the first secondary iron core. Permanent magnets are embedded in the secondary rectangular grooves. A plurality of the first and second secondary iron cores are alternately arranged and coaxially fixedly connected. A secondary iron core is fixedly installed on the barrel shaft. The primary structure of the motor is sleeved outside the secondary iron core. An air gap is provided between the secondary salient pole teeth and the primary salient pole teeth. At the initial position, the primary salient pole teeth of the first primary iron core are aligned with the secondary salient pole teeth. The motor of the present invention uses less permanent magnets, has a high utilization rate of permanent magnets, and has low magnetic leakage.

The invention provides a bilateral modular permanent magnet transverse flux linear motor, which relates to the technical field of linear motors and comprises a motor shell, the motor shell comprises a base shell, adjusting grooves are fixedly mounted on two sides of the base shell, permanent magnet support plates are transversely and slidably mounted in the adjusting grooves, and permanent magnet supports are fixedly mounted at the front ends of the permanent magnet support plates. A permanent magnet is fixedly installed on the inner wall of the permanent magnet support, a motor output shaft is transversely and slidably installed in the center of the base shell and comprises an outer output shaft, the outer output shaft is transversely and slidably installed in the center of the base shell, and a coil assembly ring is transversely and rotationally installed in the middle section of the outer output shaft along the axis; two pairs of coil supporting plates are fixedly mounted on the outer ring of the coil assembling ring, and the two pairs of rotatable coil supporting plates are alternately matched with the permanent magnet in a magnetic field, so that the influence of heat radiation of the coil on the permanent magnet is reduced, and the service life of the permanent magnet is prolonged.

The present invention discloses a transverse flux permanent magnet motor with mechanical magnetic field regulation, which includes a stator core arranged in a rotary manner with the motor axis as the center; the stator core corresponds to the rotor core to form a magnetic flux path in the plane of the motor axis; the side of the stator core is open; a permanent magnet is respectively arranged on the same side of the annular bodies on both sides of the opening; the rotor core is a semi-annular body; the two ends of the semi-annular body are respectively in corresponding contact with any one permanent magnet and the opening end far away from the permanent magnet to form a closed magnetic flux path; the stator core and the rotor core of two adjacent magnetic flux paths are docked based on different permanent magnets; the magnetic field regulation assembly includes: a magnetic field regulation tray and a magnetic field regulation block; the magnetic field regulation tray is provided with a groove for guiding the centrifugal displacement of the magnetic field regulation block; the magnetic field regulation block is centrifugally displaced to the edge of the magnetic field regulation tray and forms a magnetic circuit with the permanent magnet on the stator core to generate magnetic leakage. The present invention is assembled by modular iron cores, has a simple structure, is beneficial to processing, and reduces production costs.

The invention discloses a radial-transverse hybrid magnetic flux permanent magnet synchronous motor, belongs to the field of permanent magnet synchronous motor design, and aims to solve the problems of long magnetic circuit, large magnetic resistance and low power factor of an existing transverse magnetic flux motor. The disc-type motor comprises a disc-type rotor and a stator assembly formed by circumferentially splicing a plurality of independent stator units. The disc-type rotor is provided with two groups of permanent magnets which are axially magnetized and radially magnetized, and the two groups of permanent magnets are respectively positioned on the end surfaces of two sides and the surface of the outer circumference of the rotor and preferably form a Halbach array. A stator unit adopts an E-shaped stator core, three teeth of the E-shaped stator core are aligned with a rotor permanent magnet in the circumferential direction, and axial and radial air gaps are formed respectively, so that a radial main magnetic circuit and a transverse main magnetic circuit which work cooperatively are constructed at the same time. The motor is suitable for an electric vehicle driving system, a high-precision industrial servo, a wind generating set and other high-performance electrical transmission fields with strict requirements on power density, operation reliability and fault-tolerant capability.

A transverse flux machine (TFM) includes a rotor having permanent magnets generating a magnetic flux in a circumferential direction; and a stator including a plurality of stators cores each holding a winding and being configured to direct the magnetic flux in a radial direction and an axial direction. Each of the stator cores has one of: a gear shape with two sets of protrusions flanking the winding and extending radially toward the rotor, or a claw-pole shape including two sets of teeth extending radially toward the rotor and wrapping axially over the winding. The rotor has a first axial length that is longer than a total axial length of the stator in case the stator cores have the gear shape, or the rotor has a second axial length that is shorter than the total axial length of the stator in case the stator cores have the claw-pole shape.

The application provides a double-stage permanent magnet cylinder type transverse flux permanent magnet linear motor, which comprises a primary iron core, a secondary iron core, permanent magnets, coils and a machine shell; the primary iron core is formed by j unit primary iron cores through long and short tooth staggered coaxial axial lamination; the primary permanent magnets are installed on the surface of the short teeth of the primary iron core; the coils of the armature winding are wound on the teeth of the primary iron core according to m phases in the circumferential direction; the secondary iron core is coaxially installed in the primary iron core; and the secondary permanent magnets are installed on the surface of the secondary iron core according to m phases in the circumferential direction. The primary iron core is provided with the permanent magnets, which increases the thrust density of the motor and the space utilization rate of the primary iron core, and the permanent magnets are directly cooled through the primary iron core and the machine shell; the permanent magnets on the secondary iron core are installed in a magnetic gathering mode, which greatly improves the space utilization rate of the permanent magnets and saves the cost of the motor; the motor adopts a concentrated winding, the tooth part and the yoke part of the primary iron core are formed by one-time lamination of silicon steel sheets, and is suitable for batch production.

Examples are disclosed that relate to an electric machine that achieves independent speed, variable frequency power generation and has increased power density, efficiency, reliability, and reduced complexity relative to conventional electric machines. In one example, an electric machine includes a stator, a first stationary winding coupled to the stator, a second stationary winding coupled to the stator, and a rotor. The second stationary winding includes a plurality of winding segments corresponding to a number of phases of power of the electric machine. The rotor extends through the stator and the second stationary winding. The rotor includes a plurality of rotor segments. Each rotor segment of the plurality of rotor segments includes a plurality of pole lobes that extend radially from the rotor segment. Two or more pole lobes of each rotor segment are located on opposing sides of a corresponding winding segment of the second stationary winding.

The invention relates to a transverse flux machine with a segmented rotor. A transverse flux machine, TFM, includes a rotor assembly configured to rotate about an axis and including a plurality of axially stacked segments. Each of the plurality of segments includes a plurality of rotor cores and a plurality of permanent magnets. The TFM also includes a stator assembly including a transverse flux core configured to direct magnetic flux toward the rotor assembly in each of an axial direction and a radial direction. A steer-by-wire steering system for a vehicle includes a hand wheel actuator coupled to apply torque to a steering wheel. The hand wheel actuator includes a transverse flux machine (TFM) including a stator assembly and a rotor assembly configured to rotate about an axis. The rotor assembly includes a plurality of axially stacked segments. Each of the plurality of segments includes a plurality of rotor cores and a plurality of permanent magnets.

A modular stator assembly for an electric machine comprises a plurality of stator pole modules distributed circumferentially, each module including at least one press-formed phase coil. The machine includes a rotor assembly, which may comprise two or more rotors, having permanent magnets. These magnets are positioned to substantially surround each stator pole, with their magnetic fields oriented either in-plane or through-plane. Energizing a phase coil generates a magnetic field, creating a complete magnetic circuit that flows from the stator poles through the surrounding permanent magnets and, optionally, the back iron. This interaction between the stator's magnetic field and the permanent magnets produces torque, causing rotation of the rotor assembly relative to the stator assembly.

An integrated motor linear actuator system includes one or more stator stages inside a housing. The stator stages have a winding and a stator core disposed about a common longitudinal axis, with a plurality of stator teeth configured to guide magnetic flux generated by the winding. A rotor is disposed along the longitudinal axis, within the stator stages, with a plurality of magnetic poles distributed circumferentially about the outer surface, adjacent the stator teeth, so that the stator stages are configured to drive the rotor into rotational motion about the longitudinal axis via the magnetic flux. A thrust tube and screw assembly are operationally coupled to the rotor, and configured to convert the rotational motion into linear motion of the thrust tube.

This invention discloses a transverse flux linear-rotary switched reluctance generator with an overall axisymmetric decoupled drive structure. The stator module is composed of upper, middle, and lower stators layered axially. Single-phase linear windings are evenly distributed on the outermost salient-pole stator teeth, while three-phase rotating windings are arranged on the innermost stator yoke. The moving parts include a centrally located double-sided segmented rotor and three external mover flux rings. The internal rotating stator is interlocked with the external linear stator, resulting in a compact structure. Based on the transverse flux principle, the rotor and mover movements are perpendicular to the air gap flux, and the linear and rotating magnetic circuits are relatively independent, resulting in minimal magnetic coupling and electromagnetic decoupling. The control circuit uses fewer power switching devices, supporting multi-mode drive including series, parallel, and hybrid series-parallel windings, thus widening the speed range. This motor features low-speed, high-torque characteristics, eliminating the need for a gearbox in hybrid power generation systems, and is suitable for low-speed direct-drive combined power generation applications such as wave energy and ocean current energy.

The present application relates to a transverse flux machine with reduced torque ripple, and provides a transverse flux machine (TFM) including: a rotor having permanent magnets that generate magnetic flux in a circumferential direction; and a stator including a plurality of stator cores each holding a winding and configured to guide magnetic flux in a radial direction and an axial direction. Each of the stator cores has one of the following: a gear shape having two sets of protrusions located on the winding side and extending in the radial direction of the rotor; or a claw pole shape including two sets of teeth extending radially toward the rotor and axially wrapped around the winding. The first axial length of the rotor is longer than the total axial length of the stator if the stator cores have a gear shape, or the second axial length of the rotor is shorter than the total axial length of the stator if the stator cores have a claw pole shape.

Electric drive system (100), with: a transverse flux machine (6) which has n phase input terminals for n phases of the transverse flux machine (6), where n ≥ 2; and an energy storage device (1) for generating an n-phase supply voltage for the transverse flux machine (6), wherein the energy storage device (1) comprises: n parallel connected power supply branches (10) each with a first output terminal (1a; 1b), which are each coupled to one of the n phase input terminals (6a; 6b) of the transverse flux machine (6), and a plurality of series connected energy storage modules (3), wherein the energy storage modules (3) each comprise: an energy storage cell module (5) comprising at least one energy storage cell (5a, 5k); and a coupling device (7) with active coupling elements (7a; 7b; 7c; 7d) which are designed to selectively switch the energy storage cell module (5) into the respective power supply branch (10) or to bypass it in the power supply branch (10), characterized by the fact that the energy supply branches (10) each have a second output connection (4a; 4b), which is each connected to separate phase output connections of the n phases of the transverse flux machine (6), so that the n phases of the transverse flux machine (6) can be supplied separately from each other from separate energy storage cells (5a, 5k).