14 results about "Transverse flux" patented technology

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.

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 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.

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.

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.

This application relates to the field of motor rotor structure, specifically an anti-salient pole permanent magnet synchronous motor rotor. The purpose of this application is to address the problems of large permanent magnet leakage, small speed regulation range due to field weakening, and irreversible demagnetization of permanent magnets in existing rare-earth permanent magnet synchronous motors with built-in magnetic steel structures and magnetic bridges. The rotor core of this application has a main permanent magnet uniformly embedded circumferentially on its outer surface. Each main permanent magnet is divided into 2m-1 segments circumferentially. Two auxiliary permanent magnets are embedded between adjacent main permanent magnets. The rotor core between adjacent main permanent magnet segments serves as a rotor tooth. The rotor core between adjacent main and auxiliary permanent magnets serves as a rotor side tooth. An axially penetrating magnetic isolation slot is formed on the rotor core, with each slot uniformly arranged circumferentially and corresponding to one of the main permanent magnets. The cross-section of each magnetic isolation slot is a radially elongated strip, with one end connected to the corresponding main permanent magnet.

The invention discloses an axial magnetic flux permanent magnet electric roller, and belongs to the technical field of permanent magnet electric rollers, the axial magnetic flux permanent magnet electric roller comprises a first shaft, two second shafts are arranged on the two sides of the first shaft, the first shaft is fixedly connected with the two second shafts through fixing rods, gaps are arranged between the first shaft and the second shafts, and the first shaft is fixedly connected with the two second shafts through fixing rods. An adjustable torque mechanism is arranged in the gap between the first shaft and the second shaft and used for improving the output torque efficiency, and meanwhile a transverse magnetic flux mechanism is arranged in the middle of the first shaft and used for enhancing magnetic field distribution and improving the power density of the permanent magnet electric roller. By adopting the adjustable torque mechanism and the transverse magnetic flux mechanism, mechanical and stepless adjustment of output torque is realized, so that one roller can adapt to different load and rotating speed requirements, and on the premise of providing the same volume, higher torque power can be obtained, the power density of the permanent magnet electric roller is improved, and the volume and the weight are reduced.

The invention discloses a reverse salient pole permanent magnet auxiliary synchronous reluctance motor with a composite magnetic barrier. The motor adopts a 54-slot 8-pole matched double-layer distributed stator winding. The rotor is of a reverse salient pole structure and is provided with eight semicircular salient poles protruding towards the circle center. Two layers of arc-shaped magnetic barriers facing the stator are arranged in each salient pole, the middle part of the inner-layer magnetic barrier is broken, and the outer-layer magnetic barrier is continuous; a rectangular permanent magnet containing groove is formed between every two adjacent salient poles, and a mixed permanent magnet formed by stacking neodymium iron boron and samarium cobalt permanent magnets is placed in each groove. Irregular circular magnetic barriers are arranged at the two ends of the accommodating groove and are connected with the two ends of the inner-layer disconnected magnetic barrier; 54 circular cooling channels are uniformly distributed in the stator yoke part and the rotor in the circumferential direction. Through the unique composite magnetic barrier and reverse salient pole rotor topology, the hybrid permanent magnet and the double-circulation cooling system, a magnetic circuit and a thermal circuit are cooperatively optimized, the salient pole rate, the torque density and the power factor of the motor are effectively improved, the torque pulsation is remarkably inhibited, and the heat dissipation performance and the demagnetization tolerance are enhanced.

The application belongs to the technical field of magnetic suspension, and particularly provides a transverse flux linear synchronous motor integrating traction, suspension and guidance, which comprises a primary assembly and a secondary assembly oppositely arranged along the moving direction of a target installation component where the motor is located, the primary assembly comprises a primary iron core (1), a primary armature winding (2) and a first non-magnetic fixed frame (51), the secondary assembly comprises a secondary iron core (3), a secondary excitation winding (4) and a second non-magnetic fixed frame (52), wherein the primary assembly and the secondary assembly are both encapsulated in an armature magnetic separation block (15) and a secondary magnetic separation block (16), and the primary assembly and the secondary assembly have an air gap (6) therebetween. The transverse flux linear synchronous motor integrating traction, suspension and guidance provided by the application can realize the integration of traction, suspension and guidance when applied to scenarios such as magnetic levitation trains.

The transverse flux linear motor with Y type core and Halbach array belongs to the field of permanent magnet linear motor design, and aims to solve the problems of low utilization rate of permanent magnet, large magnetic flux leakage and insufficient power density of the traditional transverse flux linear motor. The transverse flux linear motor comprises a primary part and a secondary part. The primary part comprises a plurality of stator cores arranged in sequence along the axial direction, each stator core is provided with three circumferentially distributed armature modules, each armature module comprises long and short armature teeth and armature windings, the long and short teeth are designed with inclined air gaps and magnetic pole shoes, and the secondary part comprises Y type secondary pole cores and Halbach permanent magnet arrays on the surfaces of the Y type secondary pole cores, the permanent magnet arrays are circumferentially divided into three regions, and the three regions correspond to the three-phase armature modules of the primary part respectively, each region of permanent magnet is composed of an N pole and an S pole staggered in the axial direction, and adjacent regions are staggered in the axial direction.

A power tool including a battery pack interface and a transverse flux motor. The battery pack interface is configured to receive a removable and rechargeable battery pack. The transverse flux motor includes a stator and a rotor. The stator includes a stator core composed of soft magnetic composite material and a stator winding. The rotor is configured to rotate with respect to the stator. The rotor includes a rotor core and a plurality of permanent magnets.