29 results about "Axial field" patented technology

The application discloses a kind of stator assembly and axial magnetic field motor, the stator assembly includes stator shell, stator core, coil, pole shoe and stator cover plate, stator core, coil and pole shoe are arranged in the space formed by stator shell and stator cover plate;Coil is arranged in the opening slot of stator core;Pole shoe is fixed on stator cover plate, when stator cover plate and stator shell butt joint, pole shoe can be arranged at the slot opening of opening slot.The stator core in the application has opening slot, which facilitates the installation of the coil, at the same time, the pole shoe is fixed on the stator cover plate, when the stator cover plate and the stator shell butt joint, the pole shoe corresponding to the slot opening of the opening slot can reduce the tooth harmonic of the motor, reduce the iron loss of the motor, improve the efficiency of the motor, and reduce the torque ripple of the motor. Since the pole shoe is carried on the stator cover plate, during assembly, after directly butt jointing the stator cover plate and the stator shell, the pole shoe can be matched with the opening slot, thereby improving the production efficiency of the motor.

The invention provides a drift tube linear accelerator on-line frequency compensation method, which comprises the following steps: firstly, constructing an initial cavity three-dimensional simulation model, judging the flatness of an axial field through calculation, and adjusting the angle of an eccentric sheet if the flatness does not reach the standard; calculating the stability of the electric field, and adjusting the length of the coupling rod if the electric field does not reach the standard; the field flatness is judged again after stability tuning, and the angle of the eccentric piece is adjusted if the field flatness does not reach the standard; a tuning block is added according to an opening of the cavity, wherein the tuning block comprises a new pickup port tuner, and a vacuum pump mesh, a fixed tuner and a rod coupler are improved; after a tuning block is added, frequency, axial field flatness and stability calculation is carried out, if the three indexes all meet requirements, compensation is ended, and otherwise, it is considered that compensation cannot be carried out; according to the method, a frequency compensation scheme can be simulated and determined, so that the field flatness and stability meet the operation requirements, and a cold test system is prevented from being rebuilt in a tunnel for field adjustment.

The application provides an axial magnetic field motor stator, a cooling structure and a manufacturing method thereof. The cooling structure comprises a stator shell, the stator shell comprises an upper metal plate, an intermediate partition plate and a lower metal plate which are spliced along an axial direction, a plurality of core mounting holes are arranged on the stator shell in a circumferential direction, each core mounting hole penetrates the upper metal plate, the intermediate partition plate and the lower metal plate in sequence, a yokeless core is mounted in the core mounting hole and exposes two ends on both sides of the stator shell, a coil is sleeved on the yokeless core, the coil is sleeved on both ends of the yokeless core which are exposed on both sides of the stator shell, an upper flow channel is arranged on a splicing surface of the upper metal plate and the intermediate partition plate, a lower flow channel is arranged on a splicing surface of the lower metal plate and the intermediate partition plate, and an intermediate hole is arranged on the intermediate partition plate and communicates the upper flow channel and the lower flow channel. The method does not occupy the circumferential space of the coil, improves the coil slot fill rate, simultaneously reduces the forming difficulty and realizes the manufacturability.

The application provides an axial magnetic field motor stator, a cooling structure and a manufacturing method thereof. The cooling structure comprises a stator shell, the stator shell comprises an upper metal plate, an intermediate partition plate and a lower metal plate which are spliced along an axial direction, a plurality of core mounting holes are arranged on the stator shell in a circumferential direction, each core mounting hole penetrates the upper metal plate, the intermediate partition plate and the lower metal plate in sequence, a yokeless core is mounted in the core mounting hole and exposes two ends on both sides of the stator shell, a coil is sleeved on the yokeless core, the yokeless core exposes two ends on both sides of the stator shell, and the coil is sleeved on the two ends, an upper flow channel is arranged on a splicing surface of the upper metal plate and the intermediate partition plate, a lower flow channel is arranged on a splicing surface of the lower metal plate and the intermediate partition plate, and an intermediate hole is arranged on the intermediate partition plate and communicates the upper flow channel and the lower flow channel. The coil circumferential space is not occupied, the coil slot filling rate is improved, the forming difficulty is reduced, and the manufacturability is realized.

The application provides an axial magnetic field motor and a stator cooling structure. The stator cooling structure comprises an outer ring oil gap of an iron core, an inner ring oil path, a plurality of inter-winding inward oil paths, a spray ring oil outlet, a plurality of inter-winding outward oil paths, a plurality of spray holes, a shell inlet, and a shell outlet. The outer ring oil gap of the iron core is located on a radial outer side of the inner ring oil path. The outer ring oil gap of the iron core and the inner ring oil path are connected. The spray ring oil outlet is located on a radial outer side of the inner ring oil path. The spray ring oil outlet and the inner ring oil path are connected. The spray ring oil outlet and the outer ring oil gap of the iron core are arranged in a circumferential direction. The spray ring oil path is located on a radial outer side of the outer ring oil gap of the iron core. The spray ring oil path and the outer ring oil gap of the iron core are connected through the plurality of spray holes. The spray ring oil path and the spray ring oil outlet are arranged in the circumferential direction. The shell inlet is connected to the spray ring oil path. The shell outlet is connected to the spray ring oil outlet. The flow direction of the cooling medium can cover all the iron core windings and can completely surround the outer periphery of each iron core winding. Space is reasonably utilized and the cooling capacity is effectively improved.

The present disclosure relates to a system for imaging. The system may include a supporting assembly and a detector assembly. The supporting assembly may include a detection region to accommodate a subject. The detector assembly may surround the detection region. The detector assembly may be configured to detect radiation rays emitted from the subject located within the detection region. The detector assembly may include a plurality of detector rings. Each detector ring may include a scintillator array and a plurality of photosensors. The plurality of detector rings may be arranged on the supporting assembly in an axial direction of the supporting assembly to form an axial field of view (FOV) having a length no less than 0.75 meters.

The present application relates to axial magnetic field motor, especially to a kind of axial magnetic field motor rotor structure, including rotor core;Several permanent magnets, several The permanent magnets are circumferentially spaced on the rotor core;Several pole shoe cores, pole shoe core includes surface layer body, inner edge body and outer edge body, inner edge body is connected to the radial inner side of surface layer body, outer edge body is connected to the radial outer side of surface layer body, and inner edge body and outer edge body are fixed on the rotor core;Each permanent magnet is respectively positioned and fixed on the rotor core by a pole shoe core, and the surface layer body is at least partially covered on the upper surface of the permanent magnet, so that the permanent magnet can be firmly between the rotor core and the pole shoe core, while improving the accuracy of the permanent magnet installation, ensuring the reliability and stability of motor operation.

An axial field rotary energy device can include a rotor comprising an axis of rotation and a magnet. In addition, a stator can be coaxial with the rotor. The stator can include a plurality of stator segments that are coupled together about the axis. Each stator segment can include a printed circuit board (PCB) having a PCB layer comprising a coil. Each stator segment also can include only one electrical phase. The stator itself can include one or more electrical phases.

A system has an axial field rotary energy device with an axis, a printed circuit board (PCB) stator and a rotor with a rotor shaft and rotor disks having respective permanent magnets (PM). The rotor rotates about the axis relative to the PCB stator. A variable frequency drive (VFD) has VFD components coupled to the axial field rotary energy device. A device enclosure contains the axial field rotary energy device. A VFD enclosure contains the VFD, and the device and VFD enclosures are axially aligned and coupled to each other. A cooling system is integrated within the device and VFD enclosures and cools the axial field rotary energy device and the VFD. The cooling system has a cooling fan located axially outboard of the device and VFD enclosures. The cooling fan circulates an air flow radially and axially relative to the device and VFD enclosures.

The application discloses a kind of stator assembly and axial magnetic field motor, the stator assembly includes shell, stator core, coil, pole shoe and stator cover plate, wherein stator core, coil and pole shoe are arranged in the space surrounded by shell and stator cover plate;Coil is arranged in the opening slot of stator core;Pole shoe is fixed on stator cover plate, when stator cover plate and shell butt joint, pole shoe can be arranged at the slot opening of opening slot.The stator core in the application has opening slot, thereby facilitating the installation of coil, at the same time, pole shoe is fixed on stator cover plate, when stator cover plate and shell butt joint, pole shoe and the slot opening of opening slot correspond to each other can reduce the tooth harmonic of motor, reduce the iron loss of motor, improve the efficiency of motor, and reduce the torque ripple of motor.As pole shoe is carried on stator cover plate, in assembly, after directly butt joint stator cover plate and shell, pole shoe can be matched with opening slot, thereby improving the production efficiency of motor.

An integral motor pump (IMP) or integral motor turbine (IMT) includes an axial field permanent magnet synchronous motor (PMSM) having a stator that is sealed by a disk-shaped non-conducting stator cover axially interposed between the stator and PMSM impeller, such that eddy currents are not generated in the stator cover by the rotating permanent magnets of the impeller. The stator cover can be annular, and can be fixed directly to the stator housing, or pressed against the stator housing by brackets. The seal can be formed by an adhesive, and / or by at least one gasket. Either the stator cover or the brackets can include flanges extending axially proximate the stator housing, and attached to the stator housing by any combination of an interference fit, an adhesive, set screws, or a protrusion extending into an indentation. In embodiments, the bracket flanges are welded to the stator housing.

The application provides an axial magnetic field motor and a stator thereof, wherein the stator comprises a core, the core comprises a yoke part and a plurality of tooth parts which are arranged at intervals in the circumferential direction on the yoke part; a winding, the winding comprises a plurality of coil assemblies and a bridge line circuit board, each tooth part is sleeved with a coil assembly, the bridge line circuit board has a plurality of positioning holes which are arranged at intervals in the circumferential direction, each tooth part is inserted into a positioning hole, so that the coil assembly can be compressed between the bridge line circuit board and the yoke part under the action of the self weight of the core, and the coil assembly is welded on the bridge line circuit board, without additional design of a positioning tool, the assembly process is simplified and the cost is reduced, not only the axial dimension of the stator is reduced, but also the air gap size is ensured, the product quality is greatly improved, and the production efficiency and product qualification rate are improved.

The application relates to a high-torque axial magnetic field motor, belonging to the motor technical field, which comprises a shell, the shell is provided with an upper annular accommodating groove, a lower annular accommodating groove and a plurality of stator mounting channels, the stator mounting channels are communicated with the upper annular accommodating groove and the lower annular accommodating groove, the plurality of stator mounting channels are equidistantly arranged around the central axis of the shell, a liquid cooling channel is arranged in the shell, the liquid cooling channel sequentially passes by the two sides of each stator mounting channel, and the liquid inlet end and the liquid outlet end of the liquid cooling channel are arranged to extend from the shell; a stator body is arranged in each stator mounting channel, the top end and the bottom end of the stator body are provided with windings, the opposite sides of the two groups of windings are attached to the shell, and the liquid cooling channel is located between the two groups of windings; an upper cover is rotationally arranged on the top of the shell, the upper cover is provided with an upper rotor group; a lower cover is rotationally arranged on the bottom of the shell, and the lower cover is provided with a lower rotor group. The application has the effects of improving the light weight of the motor and improving the heat dissipation efficiency of the motor.

The application relates to an axial magnetic field motor, in particular to a rotor disc of an axial magnetic field motor, a manufacturing method and a rotor assembly. The rotor disc comprises a laminated unit, the laminated unit comprises two semi-products with different magnetizing directions, the semi-products comprise a plurality of circumferentially spaced pre-magnetized magnetic steels, the NS poles of the pre-magnetized magnetic steels of each semi-product face the same direction, the plurality of semi-products are overlapped by the pre-magnetized magnetic steels to obtain the laminated unit, and the NS poles of two adjacent pre-magnetized magnetic steels of the laminated unit face opposite directions; and a combination body which combines the two semi-products. The assembly process is reduced, the magnetizing process difficulty is reduced, and the production efficiency is improved.

The application provides an axial magnetic field motor stator, a cooling structure and a manufacturing method thereof. The cooling structure comprises a stator shell, the stator shell comprises an upper metal plate, an intermediate partition plate and a lower metal plate which are spliced along an axial direction, a plurality of core mounting holes are arranged on the stator shell in a circumferential direction, each core mounting hole penetrates the upper metal plate, the intermediate partition plate and the lower metal plate in sequence, a yokeless core is mounted in the core mounting hole and exposes two ends on both sides of the stator shell, a coil is sleeved on the yokeless core, the coil is sleeved on both ends of the yokeless core which are exposed on both sides of the stator shell, an upper flow channel is arranged on a splicing surface of the upper metal plate and the intermediate partition plate, a lower flow channel is arranged on a splicing surface of the lower metal plate and the intermediate partition plate, and an intermediate hole which is communicated with the upper flow channel and the lower flow channel is arranged on the intermediate partition plate, so that the heat exchange area is increased, the flowability of the cooling medium is improved, and the cooling effect is improved.

The present application relates to axial magnetic field motor, especially to a kind of axial magnetic field motor rotor structure, including rotor core, the rotor core is provided with multiple tooth parts;Excitation winding, the excitation winding includes several coils, the coil is covered in the side of the tooth part;Damping winding, the damping winding includes multiple radially arranged damping bars and circumferentially arranged inner ring body, outer ring body, at least one of the multiple damping bars is closed loop with another by the inner ring body, outer ring body, and the damping winding is installed at the top of the tooth part. By arranging damping winding at the top of tooth part, the impact on stator winding is reduced, and the ability of motor to resist unbalanced load is increased.

The application discloses an axial magnetic field permanent magnet vernier motor, which comprises a rotor assembly and two stator assemblies, the rotor assembly is arranged between the two stator assemblies; the stator assembly comprises a ring-shaped stator core and a plurality of stator windings, the stator core is provided with a plurality of stator teeth on a side facing the rotor assembly, the plurality of stator teeth are arranged along the circumference of the stator core, and the stator windings are arranged in one-to-one correspondence with the stator teeth and are wound on the stator teeth; an auxiliary slot is arranged on the stator tooth, and a slot inner wall of the auxiliary slot is provided in a curved cross section. The application relates to the technical field of motors, and provides an axial magnetic field permanent magnet vernier motor, which adopts a gentle curved slot type auxiliary slot, can reduce magnetic flux leakage, thereby improving the permanent magnet utilization rate, improving the output torque density, improving the matching degree of the air gap magnetic field, and improving the output torque of the motor.

This invention relates to axial magnetic field motors, and more particularly to an axial magnetic field motor rotor disk, manufacturing equipment, rotor assembly, and manufacturing method. The manufacturing equipment includes a lower mold; a plurality of first positioning members, circumferentially spaced on the lower mold, with magnetized magnets circumferentially and radially confined between adjacent first positioning members; a plurality of second positioning members, detachably fixed to the lower mold, each corresponding to a first positioning member, with the magnetized magnets axially confined between the first and second positioning members; and an upper mold. When the upper and lower molds are closed, a forming cavity is formed between them, with a connecting body formed within the forming cavity. This connecting body engages with the magnetized magnets to form the rotor disk, ensuring that the magnetized magnets do not shift due to mutual attraction, thereby guaranteeing product consistency and effectively improving the product qualification rate.

The application relates to an axial magnetic field motor, in particular to a rotor structure of an axial magnetic field motor, which comprises a rotor core, a plurality of permanent magnets, the plurality of permanent magnets are arranged at intervals in a circle, the inner surface of the permanent magnets in the axial direction is arranged on the rotor core, and the outer surface of the permanent magnets in the axial direction is provided with permanent magnet recesses; a pressing plate, the pressing plate comprises an inner limiting part, an outer limiting part and a plurality of claw parts, the claw parts are connected between the inner limiting part and the outer limiting part, each claw part is respectively inlaid in a permanent magnet recess, the inner limiting part and the outer limiting part are fixed on the rotor core, and the permanent magnets are radially limited between the inner limiting part and the outer limiting part, the permanent magnets are limited and fixed through the pressing plate, and the reliability and stability of motor operation are ensured.

The application discloses a hybrid magnetic pole type double-rotor axial magnetic field motor and relates to the technical field of permanent magnet motors. The hybrid magnetic pole type double-rotor axial magnetic field motor comprises a hybrid magnetic pole permanent magnet rotor, the side surface of the hybrid magnetic pole permanent magnet rotor is provided with a yokeless segmented stator iron core, the yokeless segmented stator iron core is provided with an armature winding, the hybrid magnetic pole permanent magnet rotor comprises a first permanent magnet, the side wall of the first permanent magnet is provided with a rotor iron core, the inside of the rotor iron core is provided with a second permanent magnet, the first permanent magnet is axially magnetized, the second permanent magnet is tangentially magnetized, the first permanent magnet and the second permanent magnet are alternately distributed along the axial direction, one end of the second permanent magnet is provided with alternately distributed air magnetic barriers, and the air magnetic barriers are used for reducing permanent magnet leakage. The hybrid magnetic pole type axial magnetic field motor can effectively and fully utilize the internal space of the axial magnetic field and improve the torque density and power density of the axial magnetic field motor.

The application provides an axial magnetic field motor and a method for suppressing eddy current loss, wherein the axial magnetic field motor comprises a stator and two rotors, the stator comprises a stator casing, the stator casing comprises at least one metal plate, a plurality of circumferentially spaced iron core mounting holes are arranged on the metal plate, a plurality of stator flow interruption slots are formed in the metal plate, the stator flow interruption slots are communicated with the iron core mounting holes and the edges of the metal plate in the radial direction, a closed ring is connected to the edges of the metal plate communicated with the stator flow interruption slots, a plurality of iron cores are mounted in the iron core mounting holes, coils are sleeved on the two ends of the iron cores exposed on the two sides of the metal plate, a plurality of coils are sleeved on the iron cores, the two rotors are arranged on the two sides of the metal plate in the axial direction, and the two ends of the iron cores exposed on the two sides of the metal plate are kept apart from the rotor air gaps, so that the purpose of suppressing the eddy current loss is achieved without changing the application of the metal material.

This invention discloses an axial magnetic field motor system based on a movable separable yoke to achieve variable magnetic flux. The system includes a first housing, a stator assembly, a permanent magnet rotor assembly, an output shaft, a movable separable yoke assembly, a worm gear, a worm, a drive motor, and a universal joint transmission assembly. The drive motor drives the worm to rotate via the universal joint transmission assembly. The worm drives the worm wheel to rotate. The threaded pair between the worm wheel and the separable yoke frame converts the rotational motion into axial movement of the separable yoke frame and the separable yoke, thereby changing the air gap between the separable yoke and the magnets of the permanent magnet rotor assembly, altering the magnetic reluctance of the permanent magnet rotor assembly, and achieving effective magnetic flux adjustment of the axial magnetic field motor. This invention can adjust the magnetic flux in motor-stopped, low-speed, and normal operating states, enabling the motor to balance low-speed high-torque output and high-speed low-flux speed-up capabilities while maintaining the rotor's low inertia characteristics.

The application relates to an axial magnetic field motor, in particular to a rotor structure of an axial magnetic field motor, which comprises a rotor core, a plurality of permanent magnets, at least one magnetic conducting assembly, the permanent magnets are limited on the rotor core through the magnetic conducting assembly, and the plurality of permanent magnets are arranged in a circle and are spaced apart, the thickness of the magnetic conducting assembly on the surface of the permanent magnet is greater than the thickness of the magnetic conducting assembly between adjacent permanent magnets, a rotor structure with a saliency ratio less than 1 is obtained, the permanent magnet can be stably arranged between the rotor core and a pole shoe core, the accuracy of the installation of the permanent magnet is improved, and the reliability and stability of the motor operation are ensured.

The application provides a controller with external rectification and an axial magnetic field motor, wherein the controller comprises a controller module, the controller module comprises a control shell and a drive control circuit board arranged in the control shell; a rectification module, the rectification module comprises a rectification shell and a rectification circuit board arranged in the rectification shell; the rectification module is independently arranged outside the controller module, and the two are connected through a flexible cable; the control shell is provided with a motor mounting surface, the controller module is mounted with a motor module as a whole through the motor mounting surface, the drive control circuit board comprises an inverter circuit part, a power supply circuit part and a control circuit part, the inverter circuit part, the power supply circuit part and the control circuit part surround the drive control circuit board in a circular shape, the thickness and the volume of the controller module are effectively reduced, the rectification module is connected to one side of the thickness direction of the controller module in an elongated form, the axial dimension is further reduced, the overall occupied space is reduced, and the application occasions are increased.

A torque measuring sensor for compensating a torque acting on a magnetic field of a shaft (1), with a sensing point (17, 18) located on one side of the shaft (1). The shaft (1) comprises magnetic sections (5, 6, 7). The sensing point (17, 18) comprises at least one axial field magnetic sensor (8, 9, 10) that measures an axial magnetic field of the magnetic sections (5, 6, 7). The sensing point (17, 18) comprises at least one radial field magnetic sensor (13, 14, 15) that measures a radial magnetic field of the magnetic sections (5, 6, 7).

The application provides an axial magnetic field motor stator, a cooling structure and a manufacturing method thereof. The cooling structure comprises a stator shell, the stator shell comprises an upper metal plate, an intermediate partition plate and a lower metal plate which are spliced along an axial direction, a plurality of core mounting holes are arranged on the stator shell in a circumferential direction, each core mounting hole penetrates the upper metal plate, the intermediate partition plate and the lower metal plate in sequence, a yokeless core is mounted in the core mounting hole and exposes two ends on both sides of the stator shell, a coil is sleeved on the yokeless core, the coil is sleeved on both ends of the yokeless core which are exposed on both sides of the stator shell, an upper flow channel is arranged on a splicing surface of the upper metal plate and the intermediate partition plate, a lower flow channel is arranged on a splicing surface of the lower metal plate and the intermediate partition plate, and an intermediate hole is arranged on the intermediate partition plate and communicates the upper flow channel and the lower flow channel. The method does not occupy the circumferential space of the coil, improves the coil slot fill rate, simultaneously reduces the forming difficulty and realizes the manufacturability.

The application relates to an axial magnetic field motor, in particular to a rotor structure of an axial magnetic field motor, which comprises a rotor core, a plurality of permanent magnets, a pole shoe core, a plurality of permanent magnets and a plurality of pole shoes, the plurality of permanent magnets are arranged on the rotor core in a circumferential interval, the pole shoe core comprises a plurality of surface layers and a plurality of inter-pole bodies, the surface layers and the inter-pole bodies are connected in sequence and at intervals to form the annular pole shoe core, the inter-pole body is provided with a mounting hole, the pole shoe core is fixed on the rotor core through the mounting hole, the plurality of permanent magnets are arranged in a circumferential interval, the permanent magnets are fixed on the rotor core through the pole shoe core, the surface layers at least partially cover the upper surfaces of the permanent magnets, the inter-pole body is arranged between two adjacent permanent magnets, and the mounting hole is located between the two adjacent permanent magnets. The pole shoe core meets the requirements of fixing the permanent magnets, meets the requirement of magnetic conduction, can reduce the eddy current loss, the number of parts is small, and the assembly process is effectively reduced.

This invention provides an axial magnetic field motor and its cooling structure. The cooling structure includes a first stator connecting shell with a first water inlet channel and a first water outlet channel separated from each other; a second stator connecting shell with a second circulating water channel; an intermediate shell that forms a rotor housing cavity, with the first and second stator connecting shells connected to each other on its axial sides, and an intermediate inlet channel and an intermediate outlet channel respectively provided on the intermediate shell, with the second circulating water channel connecting between the intermediate inlet channel and the intermediate outlet channel; a water inlet located on the first stator connecting shell, with the first water inlet channel connecting between the water inlet and the intermediate inlet channel; and a water outlet located on the first stator connecting shell, with the first water outlet channel connecting between the intermediate outlet channel and the water outlet. This reduces the number of assembly parts, avoids complicated assembly processes, and effectively cools the rotor, ensuring reliable and stable motor operation.

An axial field rotary energy device can include a rotor comprising an axis of rotation and a magnet. In addition, a stator can be coaxial with the rotor. The stator can include a plurality of stator segments that are coupled together about the axis. Each stator segment can include a printed circuit board (PCB) having a PCB layer comprising a coil. Each stator segment also can include only one electrical phase. The stator itself can include one or more electrical phases.