247results about "Magnetic circuit shape/form/construction" patented technology

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.

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.

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.

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.

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.

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

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.

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.

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.

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.

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.

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.

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.

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.

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).

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.

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.

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.

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.

The utility model relates to the field of magnetic rings for motors, and discloses a magnetic ring for a high-strength transmission motor. The end, opposite to the buffering connector, of the connecting rod is provided with an inserting rod, a through groove is formed in the inserting rod, a reset spring is installed in the through groove, the two ends of the reset spring are connected with fixing clamping blocks, and the end, close to the first half magnetic ring body, of the second half magnetic ring body is provided with an adaptive clamping sleeve. An adjusting slot matched with the fixed clamping block is formed in the surface of the adaptive clamping sleeve; the distance between the first semi-magnetic ring body and the second semi-magnetic ring body is adjusted according to specific installation requirements, during adjustment, the distance between an insertion rod and an adaptive clamping sleeve can be adjusted by pressing a fixing clamping block inwards, then an anti-disengaging fixing screw is screwed into an anti-disengaging threaded hole, anti-disengaging fixing can be conducted on the fixing clamping block from the side edge, and the anti-disengaging effect is achieved. In the using process, even if large vibration occurs, falling is not prone to occurring, and the stability of the whole device in the using process is improved.

The invention relates to a suspension motor actuator, a suspension assembly and a vehicle. The suspension motor actuator comprises a shell assembly and a suspension assembly, the rotor assembly is partially located in the shell assembly, and the rotor assembly can generate variable relative displacement relative to the shell assembly; the elastic supporting assembly comprises a first elastic piece, one end of the first elastic piece abuts against the shell assembly, and the other end of the first elastic piece abuts against the rotor assembly; the first elastic piece is a variable-rigidity elastic supporting assembly. According to the suspension motor actuator, the suspension assembly and the vehicle, on the premise that the effective stroke of the rotor of the suspension motor is guaranteed, the maximum radial size and the maximum axial size of the suspension motor actuator assembly can be controlled within a reasonable range.

The present application discloses a system comprising: a stator having a plurality of windings configured to generate a rotating magnetic field; a first rotor having a plurality of permanent magnets having an associated second magnetic field; a second rotor through which the rotating magnetic field and the second magnetic field are coupled, wherein rotation of the first rotor is magnetically coupled to rotation of the second rotor; a first rotation sensor associated with the first rotor; a second rotation sensor associated with the second rotor; and a controller configured to control current supplied to the windings based on signals from the first sensor and signals from the second sensor, wherein one of the first rotor and the second rotor is a drive rotor configured to be attached to an external load, and the other of the first rotor and the second rotor is a passive rotor.

An iron core (1A, 1B) for an electrical machine (2A, 2B) comprises: a body (10) formed from a pressed iron powder composite (P) and at least one fiber layer (11) arranged in the body (10).

The application discloses a rotor motor and relates to the technical field of motors, wherein the rotor motor comprises a rotor part, a stator part, an electromagnetic brake part and a sealing assembly; the stator part comprises a stator coil and is used for driving the rotor part to rotate; the electromagnetic brake part comprises a brake coil and a magnetic conducting sheet; the brake coil is used for driving the magnetic conducting sheet; the magnetic conducting sheet is used for abutting and braking the rotor part; the sealing assembly is rotationally sealed with the rotor part, is used for sealingly wrapping the abutting and braking area of the electromagnetic brake part and the rotor part, and is internally provided with a containing cavity for containing the debris generated by the abutting and braking. The rotor motor wraps the abutting and braking area of the electromagnetic brake part and the rotor part through the sealing assembly, and the containing cavity is arranged to contain the debris generated by the abutting and braking, so that the influence on the working stability of the rotor motor and the influence on the braking effect are effectively reduced.

The invention provides a high-performance flexible motor magnetic strip and a preparation method and application thereof. The high-performance flexible motor magnetic strip comprises a strong magnetic layer, a first plain layer and a second plain layer, wherein the first plain layer and the second plain layer cover the two sides of the strong magnetic layer respectively; the high-performance flexible motor magnetic strip is prepared by calendering different magnetic adhesive tapes at a relatively low temperature, so that the influence on the performance of the magnetic strip due to processing of the original magnetic adhesive tape at a high temperature is avoided, and the stability and the reliability of the high-performance flexible motor magnetic strip are improved. And the composite plain sheet layers on the two sides of the strong magnetic layer improve the oxidation resistance and increase the mechanical strength of the composite material on the basis of ensuring the magnetic performance strength of the composite material, so that the high-performance flexible motor magnetic strip better meets the requirements of high-rotating-speed motor operation on high-performance and high-strength magnets.

This utility model discloses an injection-molded magnet assembly for an electric motor, belonging to the technical field of magnet assembly. It includes an injection-molded outer shell and a magnetic housing, with a positioning hole inside the bottom wall of the injection-molded outer shell. The beneficial effects of this utility model are that it features a detachable magnetic housing and magnets. The positioning hole inside the bottom wall of the injection-molded outer shell provides alignment support for the magnetic housing. The magnetic housing is composed of multiple circular magnets arranged in a ring array, with a positioning post fixed at the bottom, inserted into the positioning hole of the injection-molded outer shell for positioning and fixation. The magnets are fixedly installed inside the magnetic housing, providing a magnetic field. The two outer walls of the magnetic housing are in contact with each other, enhancing the stability and strength of the overall structure. The injection-molded outer shell is installed on the outside of the magnetic housing through an injection molding process, forming a tight whole. A limit frame is provided on one side wall of the magnetic housing, with hexagonal bolts installed inside, which can further fix the injection-molded outer shell, ensuring the stability of the assembly.

This invention provides a Fe-based soft magnetic amorphous alloy sheet capable of easily reducing losses in laminated iron cores, a laminated iron core and a rotary motor using the sheet, and a method for manufacturing the Fe-based soft magnetic amorphous alloy sheet. The Fe-based soft magnetic amorphous alloy sheet for laminated iron cores of this invention is characterized in that the sheet has: opposing front and back sides; and side sides, the sheet thickness is 10–50 μm, the side sides have fracture surfaces inclined relative to the thickness direction of the sheet from the front and back sides respectively, and the side sides are V-shaped in cross-section in the thickness direction of the sheet, gradually tapering towards the ends.

The invention discloses a cylinder type linear motor and an installation method thereof, the cylinder type linear motor comprises a secondary and a primary, the secondary comprises a shell and permanent magnets arranged on the inner surface of the shell, the outer surfaces of the permanent magnets are attached to the inner surface of the shell, the permanent magnets are arranged on the inner surface of the shell at intervals in a stepped mode, and the same-direction ends of the adjacent permanent magnets are different in polarity; the same-direction ends of two adjacent rows of permanent magnets in the axial direction of the shell have the same polarity; the primary stage comprises a cylindrical magnet yoke, circular ring teeth, a coil, a cooler and a sealing cover, the circular ring teeth are arranged on the cylindrical magnet yoke at equal intervals, an insulating heat conduction material is arranged between the adjacent circular ring teeth, and the coil is located in the insulating heat conduction material. The thrust density of the motor can be effectively improved by adopting the ring cylinder type design, the thrust pulsation during operation can be effectively reduced by adopting the special design of the permanent magnets and the cylindrical magnet yokes, the thrust density of the motor can be further effectively improved by adding the cooler part, the temperature rise and the thrust pulsation of the motor are reduced, and the service life of the motor is prolonged. Therefore, the acceleration and precision of motor operation are improved.

The invention relates to a method for operating an electric machine (4), at least comprising the step: (S200) at least temporarily subjecting a laminated core (10, 18) of the electric machine (4) to ultrasound.

toroidal coil arrangement (10), comprising - a toroidal outer coil (12) with a plurality of electrically interconnected outer windings enclosing an outer coil interior, and - a toroidal inner coil (14) arranged concentrically to the outer coil (12) within the interior of the outer coil, with a plurality of electrically interconnected inner windings, wherein each of the coils (12, 14) has a pair of terminals (121; 141) for its separate electrical contacting, characterized by that the outer coil (12) has two open ring rails (122a,b) running at a constant distance from each other, defining an annular gap (124) between them, which are connected to each other by conductor arcs (123) distributed evenly over their circumference, forming the outer windings.