59 results about "Stator poles" patented technology

The invention belongs to the technical field of inductor and generator manufacturing, and particularly relates to a self-resonance coil winding method and a low-reluctance generator coil winding. A same-direction lamination winding method is adopted, a wire is fixed at a starting point, N turns are wound to form a first layer of a coil, then the first layer of the coil is attached, M turns are wound in the same direction, the first layer is overlapped, a second layer of the coil is formed, then the second layer of the coil is attached, X turns are wound in the same direction, the second layer is overlapped, and the third layer of the coil is formed. And winding the fourth layer, the fifth layer to the Yth layer according to the same rule. The layers of the finished coil are connected in series and are stacked into a whole layer by layer. By improving the winding method of the coil, the magnetic poles of the generator generate magnetoelectric energy standing waves and voltage and current phase shifts, so that the magnetic resistance of the stator magnetic poles of the generator to the rotation of the rotor is reduced, and the efficiency of converting mechanical energy into electric energy of the generator is greatly improved.

Motor for use in a washing machine, comprising: a stator (100), comprising: a core (108) made of magnetically permeable material, comprising an annular ring section (104) having an inner diameter of 120 mm to 250 mm and a radial width (134) of 5 mm to 15 mm, 27 radially extending poles (102) spaced apart around the outer circumference of the annular ring section (104), the poles (102) extending outwards from the annular ring by a distance of 15 mm to 40 mm, three phase windings, each winding comprising a plurality of coils arranged on one third of the pole cores (109), the windings on the pole cores (109) being arranged such that each pole core (109) is assigned only one winding, which is different from the winding assigned to each of two immediately adjacent pole cores (109). is,and the two immediately adjacent pole cores (109) are assigned to different windings, an insulator that insulates the pole cores from the windings, a rotor (36) that is concentric to the stator (100), with a permanent magnet ring (38) outside the stator (100) and rotor poles that point towards the ends of the stator poles (102), wherein the ratio of rotor poles to stator poles (102) is 4:3.

Embodiments described herein relate to systems and methods for controlling a switched reluctance motor with double-layer toroidal winding. A control system for a motor includes: a switched reluctance motor including: a rotor including a plurality of salient poles, and a stator disposed concentrically with the rotor, the stator including a plurality of slots on a stator core, each of the plurality of slots accommodating a first coil and a second coil, each wound around the stator core in a toroidal configuration between directly adjacent stator teeth, each of the first and second coils respectively forming stator poles, and a drive circuit including a transistor and a diode, the drive circuit being configured to independently excite the first coil and the second coil by providing at least one of positive or negative currents to each of the first and second coils bi-directionally or single directionally.

The utility model discloses a starting motor stator pole shoe run-out detection device, which belongs to the technical field of rapid detection after starting motor stator processing, and comprises a base and a detection module, the top of the base is provided with a positioning disc and a rotating disc, and the upper end face of the rotating disc is provided with a circular mounting groove; the detection module comprises linear sliding rails, each linear sliding rail is provided with a sliding table and a transmission plate, one end of each transmission plate in the length direction is vertically provided with a measuring rod, and each transmission plate is provided with a measuring device. According to the invention, an expensive three-coordinate measuring machine and a complex clamp design are not needed, the detection cost is greatly reduced, instant detection of stator pole shoe jumping is realized, the tedious process of sending a stator to a detection department in a traditional detection mode is avoided, the detection period is obviously shortened, and the production efficiency is improved.

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 invention provides a salient pole reluctance rotor switch flux linkage motor with maximum fundamental wave ratio magnetic conductance, which belongs to the technical field of stator permanent magnet synchronous motors and comprises a stator iron core, permanent magnets, armature windings and a salient pole reluctance rotor. The stator iron core is composed of a plurality of identical U-shaped iron cores. The permanent magnets are arranged between two adjacent U-shaped iron cores; the armature windings are wound on the adjacent U-shaped iron cores; the salient pole reluctance rotor is arranged in the stator core, and the overall dimension of the salient pole reluctance rotor is calculated and determined according to the inner diameter of the stator, the length of an air gap and the number of poles of the stator, so that the salient pole reluctance rotor is of a salient pole rotor structure with the maximum fundamental wave ratio magnetic conductance, and the torque pulsation of the switched flux linkage motor is reduced. The motor has the advantages of low torque pulsation, simple structure, high reliability and the like, and is suitable for occasions with high requirements on motor torque pulsation performance, such as numerical control machine tools, intelligent robots and the like.

The motor (1) has a housing (10), a stator (11), a rotor (12), and regulating electronics (RE). The stator has a soft iron lamination assembly (13) and a winding arrangement (14) defining the motor axis (x). The soft iron lamination assembly (13) has soft iron sections (s1-sn) and connecting elements (133). The winding arrangement (14) has a layered structure with at least two bearing layers (b) and a connecting medium. These bearing layers (b) are connected to each other by the connecting medium. At least one conductor line (e1-en) is arranged between these bearing layers (b). The at least one conductor line (e1-en) has a first end (f) and a second end (f') and is at least partially sealed relative to gas and liquid by the layered structure in the region between the first end (f) and the second end (f'). The end (f), the second end (f'), or the first end (f) and the second end (f') are at least partially electrically connected to each other by at least one phase bridge (p). The layered structure and the at least one conductor line (e1-en) extend around the motor axis (x) between the first end (f) and the second end (f') to form a layer (142). The layer (142) has units (c1-cn). Soft iron segments (s1-sn) extend through these units (c1-cn) and together with these units define stator poles (j1-jn). These stator poles (j1-jn) form a matrix (Q) having rows (m) and at least one column (n). The rows (m) are staggered in the circumferential direction and the at least one column (n) is staggered in the direction of the motor axis (x) in the presence of at least two columns (n).

The utility model provides a coil component and a motorized valve with the same, the coil component comprises a stator shell, the stator shell is provided with a containing cavity, the circumferential side wall of the stator shell is provided with a passing port and a limiting structure which are communicated with each other, and the limiting structure is located at the end part of the passing port along the circumferential direction of the stator shell; the part, located outside the passing opening and the limiting structure, of the circumferential side wall of the stator shell is of a closed structure. Part of the framework is arranged in the accommodating cavity, and the other part of the framework extends out of the accommodating cavity from the passing opening; the stator pole plate is connected with the framework, at least part of the stator pole plate is located in the containing cavity, the stator pole plate is provided with a limiting part, and the limiting part is in limiting fit with the limiting structure. According to the technical scheme provided by the utility model, the problem that the processing technology of the stator polar plate and the stator shell is relatively complex because the stator shell needs to be provided with more gaps in the positioning matching mode of the stator shell and the stator polar plate based on multiple gaps in the prior art can be solved.

A stator defines multiple stator poles with associated stator windings. A rotor defines multiple rotor poles with associated rotor windings configured to be energized substantially by the stator. The rotor defines a rotor field energizable by magnetic fields produced by the stator windings to produce relative force between the rotor and the stator. An active rectifier is conductively coupled to one or more first rotor windings. The active rectifier is configured to control a direction of current flow through the one or more first rotor windings responsive to a signal received wirelessly from the stator by one or more second rotor windings.

The application belongs to the technical field of motor stator winding, in particular to an automobile motor stator winding machine, which comprises a base, a sliding groove is formed in the upper end of the base, a sliding frame is slidably connected in the sliding groove, a winding frame is rotatably connected to the inner upper end of the sliding frame, a gear ring is fixedly connected to the outer part of the inner cavity of the sliding frame, the gear ring is meshingly connected with a gear disc, a wire guide cylinder is fixedly connected to the upper end of the winding frame for guiding the discharge of copper wire; the existing winding machine usually puts the stator on the fixed inserting column, then the pressing column presses it from the top, and then the winding mechanism and the wire clamping mechanism cooperatively complete the copper wire clamping and winding operation, however, the diameter of the inserting column is fixed, when facing different specifications of stators, if the inner diameter of the stator is too large, the radial gap between the inserting column and the inner cavity of the stator is too large, the stator is prone to shaking during winding, which leads to the decrease of winding precision, on the contrary, if the inner diameter of the stator is too small, the stator cannot be smoothly put into the inserting column, which causes clamping difficulty.

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 invention provides a direct-current brushless motor stator pole tooth winding fixing device for a robot, and belongs to the technical field of brushless motor production, the direct-current brushless motor stator pole tooth winding fixing device comprises a winding table, a fixing column, a pushing assembly, a positioning block and a second driving assembly, the upper part of the winding table is fixedly provided with two groups of support plates, and the two groups of support plates are oppositely distributed left and right; the fixing column is installed between the two sets of support plates, the pushing assembly is installed on the support plate on the left side and used for pushing stator pole teeth placed on the upper portion of the fixing column rightwards, a plurality of concave holes are formed in the upper portion of the fixing column, and the concave holes are distributed in the length direction of the fixing column at equal intervals. Compared with the prior art, when the plurality of stator pole teeth are wound, the plurality of stator pole teeth can be automatically fixed and positioned at intervals, and dovetail grooves do not need to be formed in the pole teeth in advance, so that the pole tooth structure does not need to be damaged, and the motor has the advantages of high pole tooth winding efficiency and low motor production cost.

The application relates to the motor technical field, in particular to an outer rotor switched reluctance motor, which comprises a rotor, a stator, a three-phase winding and a permanent magnet, the rotor is coaxially nested on the outside of the stator, the rotor is a salient pole structure comprising rotor poles and a magnetic isolation sleeve, the magnetic isolation sleeve is enclosed into a cylindrical shape by a plurality of modules, a plurality of rotor poles are evenly connected to the inner surface of the magnetic isolation sleeve in the circumferential direction of the cylindrical shape, the stator is a salient pole structure comprising stator poles and a stator yoke, a plurality of stator poles are evenly arranged on the outside of the stator yoke, a winding slot is formed between two adjacent stator poles, the three-phase winding is embedded in the winding slot, and the permanent magnet is arranged at the slot opening of the winding slot and located on the outside of the three-phase winding. The application adopts the block outer rotor, trapezoidal air gap and full-pitch winding structure, and installs the permanent magnet at the winding slot opening for auxiliary excitation, so that the output torque density and efficiency of the switched reluctance motor are greatly improved, and the problems of low output torque density and efficiency of the traditional switched reluctance motor are effectively solved.

Embodiments described herein relate to systems and methods for controlling a switched reluctance motor with double-layer toroidal winding. A control system for a motor includes: a switched reluctance motor including: a rotor including a plurality of salient poles, and a stator disposed concentrically with the rotor, the stator including a plurality of slots on a stator core, each of the plurality of slots accommodating a first coil and a second coil, each wound around the stator core in a toroidal configuration between directly adjacent stator teeth, each of the first and second coils respectively forming stator poles, and a drive circuit including a transistor and a diode, the drive circuit being configured to independently excite the first coil and the second coil by providing at least one of positive or negative currents to each of the first and second coils bi-directionally or single directionally.

A punching sheet structure of a vector reluctance motor comprises a rotor punching sheet and a stator punching sheet, the rotor punching sheet is provided with a plurality of rotor pole teeth, the stator punching sheet is provided with a plurality of stator pole teeth, the rotor pole teeth on the rotor punching sheet are trapezoidal, a pole tooth groove between every two rotor pole teeth is trapezoidal, a plurality of magnetic isolation holes are formed in the rotor punching sheet around a rotor shaft hole, and the magnetic isolation holes are communicated with the rotor shaft hole. The positions and the number of the magnetic isolation holes are in one-to-one correspondence with the positions and the number of the rotor pole teeth, and the height h of the rotor pole teeth is larger than the length L from the pole tooth grooves to the magnetic isolation holes.

The utility model relates to a stator sealing device and a motor, and the stator sealing device is used for sealing a stator groove defined by a stator yoke part, a stator tooth part and stator pole shoes, the stator sealing device comprises a sealing member which is used for being arranged at a notch formed between the two stator pole shoes, the sealing member is provided with a clamping part, and the clamping part is used for clamping the stator yoke part, the stator tooth part and the stator pole shoes; the clamping part is used for being connected with the stator pole shoe in a clamped mode, and the sealing piece is of a sealing structure which can deform at the preset temperature so as to be attached to the stator pole shoe. The sealing element is arranged at the notch of the stator groove to seal the stator groove, the sealing element is clamped with the stator pole shoes on the two sides through the clamping part, the sealing element is prevented from falling off, the sealing element can deform at the preset temperature to be attached to the stator pole shoes, in this way, the sealing element can be fixed more firmly, the sealing performance can be improved, and the service life of the motor is prolonged. The cooling medium is prevented from flowing out of the stator slots.

The application relates to a low mutual inductance motor, which comprises a stator core, a rotating shaft, magnetic steel and winding, the magnetic steel is assembled on the rotating shaft, the stator core is provided with a stator main pole, the winding is wound on the stator main pole, and the stator pole shoe on the stator main pole adopts an asymmetric structure. Compared with the prior art, the application has the advantages of reducing the mutual inductance of the motor and the like.

The present invention relates to a stator (2) of a rotary electric machine (1), the stator comprising a stator mass block (25) comprising teeth (23) and grooves (21) between the teeth (23), each of the grooves being completely closed on the side where the air gap is located, and an electrical conductor (22) being accommodated in the groove, the electrical conductor forming a fractional slot winding, for which the ratio q defined by q = Ne / (2pm) is written in the form of an irreducible fraction z / n, z and n being two non-zero integers, n being different from 1, where Ne is the number of stator grooves, m is the number of winding phases, and p is the number of stator pole pairs.

The application relates to the technical field of electric machines, in particular to a hybrid excitation type switched reluctance motor combining axial and radial air gaps, which comprises a stator, a rotor, winding coils and permanent magnets, the stator comprises a stator yoke and stator poles with salient pole structures, the stator poles are divided into excitation poles and auxiliary poles, the permanent magnets are arranged between adjacent excitation poles and auxiliary poles, the rotor is coaxially nested in the interior of the stator, the rotor comprises a magnetic isolation sleeve and rotor blocks with salient pole structures, the inner surfaces of the stator poles and the outer surfaces of the rotor blocks are both provided with rectangular teeth, and the rectangular teeth of the stator poles and the rectangular teeth of the rotor blocks are gap matched to form axial and radial mixed air gaps. The hybrid stator poles, the blocked rotor and the axial and radial mixed air gap structure are adopted, and the permanent magnets are installed between the stator poles to perform auxiliary excitation, so that the output torque density and the efficiency of the switched reluctance motor are greatly improved, and the problems of low output torque density and low efficiency of the traditional switched reluctance motor are effectively solved.

A two-phase bipolar 3.6° step motor is described in which the stator winding assembly has eight stator poles organized into decoupled phase groups with two distinct angular pole separations, 14.4°×[(4n±1) / 4] between poles of the same group, and 14.4°×[(4m±1) / 2] between adjacent poles of different groups, where n and m are positive whole numbers. Three stator teeth on each stator pole have a stator tooth pitch of 13.2° to minimize detent torque for smoother, more accurate stepping. A rotor has alternating magnetic north and south rotor teeth around a circumference thereof with a 14.4° rotor tooth pitch angle. The stator poles are wound with electromagnetic coil windings that can be driven in a series of phases to magnetically interact with the rotor.

This invention discloses a twelve-pole radial magnetic levitation bearing and its pole configuration control method, belonging to the field of magnetic levitation bearing technology. The stator poles of the twelve-pole radial magnetic levitation bearing consist of six pole pairs, with the pole polarity determined to be NSSNNSSNNSSN polarity configuration. Two sensors are used to detect rotor and directional displacement. The six pole pairs constitute three control degrees of freedom distributed at 120°. The pole configuration control method includes a displacement loop control algorithm, electromagnetic force distribution, and pole current distribution. Two-pole-pair, three-pole-pair, and six-pole-pair configurations are used corresponding to the rotor's maximum operating speed ranges of 0-30%, 30%-70%, and 70%-100%. This invention reduces the energy consumption of the magnetic levitation bearing while ensuring its load-bearing capacity by using different pole configurations within different rotor speed ranges, thus meeting the development requirements of high efficiency and high performance for magnetic levitation rotating machinery.

The proposed device (RH) is intended for providing an electrically adjustable, contactlessly operating magnetic cogging torque inhibition between an electro-permanent magnet (MAG) and a cogging torque ring (RR) which is rotatable about an axis of rotation (D) and has rotor pole shoes (PR) arranged in a distributed manner. The electro-permanent magnet comprises a magnetic core (MK), a coil (SP) surrounding said magnetic core, and a magnetic field conductor (Bo, Bu) connected to each pole end (PE) of the magnetic core. In order to provide the cogging torque inhibition, a suitable current pulse can be impressed into the coil. Both magnetic field conductors extend from the pole ends to the rotor pole shoes and form stator pole shoes at their respective ends, which stator pole shoes lie opposite the cogging torque ring having the rotor pole shoes. The two magnetic field conductors are connected to one another in a rotationally fixed manner. According to the invention, the magnetic field conductors each form a plurality of finger-shaped portions (Fo, Fu) each having a finger end piece (Eo, Eu). The finger end pieces are designed and oriented in a radial outer region (RA) of the electro-permanent magnet in such a way that the finger end pieces of one of the two magnetic field conductors engage between the finger end pieces of the other magnetic field conductor in order to form stator pole shoes having north and south poles which alternate in the circumferential direction.

To give magnetic induction power aligned in a motion direction by a larger component.SOLUTION: The electric motor has a stator having a plurality of stator poles with electrical windings associated therewith and a rotor having a plurality of rotor poles. The rotor has flux barriers between adjacent rotor poles, the flux barriers each having a material with a higher electrical conductivity than the rotor pole material. The flux barriers are electrically insulated from each other outside the ferromagnetic material. Eddy currents are induced in the flux barriers to cause destructive interference of the steep magnetic fields, such that the flux barriers effectively act to suppress the magnetic flux during motor operation which, in some cases, produces a repulsive force that acts to increase the induced motive force on the rotor poles.SELECTED DRAWING: Figure 12

This invention discloses a single-phase permanent magnet reluctance brushless motor, belonging to the field of motor technology. The motor uses DC power supply, solving problems such as lack of static self-locking, complex electrical control, and outdated braking modes in traditional series-wound, brushless, and permanent magnet synchronous motors. The motor consists of a stator assembly, winding assembly, rotor assembly, and drive control assembly. The stator assembly adopts a radially expandable open magnetic circuit structure. The winding assembly is a single-phase system with two excitation coils connected in parallel, allowing flexible adjustment of the number of turns and wire diameter, reducing copper losses, and improving efficiency and heat dissipation. The rotor assembly is a three-N-pole and three-S-pole magnetic tiles coaxially and in the same direction to form a composite magnetic pole structure. The salient poles of the magnetic poles cooperate with the salient poles of the stator pole shoes to form a magnetic circuit synthesis, enabling the permanent magnet torque and reluctance torque to be superimposed in the same direction, achieving static locking. The motor has a large starting torque, good high and low speed torque performance, and a wide voltage adaptation range, achieving reluctance braking and synchronous power generation based on reluctance characteristics.

A state machine includes a state machine having a stator assembly arranged to generate a rotating electromagnetic field in response to a control signal. The stator assembly includes a plurality of stator poles, each of the plurality of stator poles includes a coil wound normal to an axis of rotation of a rotor assembly. The state machine also includes a rotor assembly, positioned adjacent to the stator assembly, arranged to rotate in response to the rotating electromagnetic field about the axis of rotation. A first sensor is arranged to detect an angular position of the rotor assembly and output first sensor data based on the angular position of the rotor assembly. The state machine also includes a controller including a processor, a plurality of capacitors respectively electrically connected to the plurality of stator poles, and a plurality of switches respectively electrically connected to the plurality of capacitors, and the plurality of switches are controllable by the processor.

An axial flux switched reluctance motor and / or generator, and controls are provided. It includes a stator, which includes a front surface and a rear surface, and sidewalls that extend from the front surface to the rear surface. The stator includes salient stator poles positioned on the front surface. Each one of the salient stator poles including: a bobbin protruding out from the front surface in a direction along an axis of the bobbin that is perpendicular to the front surface; the bobbin comprising a bobbin front surface that is parallel to the front surface of the stator; and a coil of electrically insulated wire wound around the bobbin. A rotor includes a front rotor surface and an opposite facing rear rotor surface, and further includes a plurality of rotor poles. The rotor is affixed to a shaft and rotates about an axis of rotation that is aligned with the shaft.

An electric machine includes a stator defining multiple stator poles with associated stator windings configured to receive a stator current. The electric machine also includes a rotor defining multiple fixed rotor poles with associated rotor windings, wherein the rotor defines a field energizable by magnetic fields produced by the stator windings when receiving the stator current to produce relative motion between the rotor and the stator and wherein the rotor is maintained in synchronicity with the magnetic fields produced by the stator during operation of the electric machine. The electric machine also includes a rectification system configured control against an alternating current being induced in the rotor poles as the field is energized by magnetic fields produced by the stator windings when receiving the stator current.

The invention relates to the technical field of motors, and provides a matrix motor, the matrix motor comprises a plurality of modular motor elements, and each modular motor element comprises a rotor structure and a plurality of first stator structures; each first stator structure comprises a first stator iron core and a plurality of first windings, the first stator iron core comprises at least two first stator teeth, the first stator structures are arranged in the circumferential direction by taking the rotating central shaft of the rotor structure as the center, and first stator pole shoes of the first stator structures are arranged towards the rotor structure; each first stator structure forms a first magnetic field vector at the corresponding first connecting part, the rotation directions of the first magnetic field vectors are the same, and the rotation directions of the first magnetic field vectors are opposite to the rotation directions of the corresponding rotor structures. According to the modularized motor element provided by the invention, the first stator structure can be used as a standard component, array arrangement of the first stator structure and the rotor structure can be realized, the space utilization rate is higher, and the overall weight is lighter.

The invention relates to the field of topological structures, in particular to a magnetic flux switching driving stator topological structure based on bilateral permanent magnet coupling, which comprises a C-shaped iron core, a magnetic flux switching driving stator, a magnetic flux switching driving stator and a magnetic flux switching driving stator, the tooth end auxiliary permanent magnets are arranged on two sides of a stator pole of the C-shaped iron core; and the notch auxiliary iron core is arranged on the outer side of the tooth end auxiliary permanent magnet so as to be combined with the tooth end auxiliary permanent magnet to form a new magnetic circuit, so that the new magnetic circuit passes through the stator pole split teeth which are not utilized in the magnetic flux switching process. A new magnetic circuit is constructed through the tooth end auxiliary permanent magnet and the notch auxiliary iron core, the new magnetic circuit drives the stator pole split teeth which are not utilized in the magnetic flux switching process through the magnetic flux switching electromagnet, the utilization rate of the stator iron core is improved, the back electromotive force and the output torque are improved, magnetic leakage of a traditional spoke type permanent magnet is restrained, and the cogging torque is reduced.

An electric motor (20) is provided that includes a housing (28), a stator (22), a rotor (24), and a coolant (56). The rotor (24) has an output shaft (26). The rotor (24) is disposed radially inside of the stator (22) and is configured for rotation relative to the stator (22) about a rotational axis (48). The stator (22) includes an outer radial ring portion (46) and a plurality of stator poles (34). Each stator pole (34) extends radially inward from the outer radial ring portion (46) to a SP distal end (52). The stator (22) includes a plurality of stator cooling circuits (54). Each stator cooling circuit (54) includes a circumferentially extending outer radial channel (58) located in the outer radial ring portion (46) of the stator (22) and a stator pole channel (60) disposed in each stator pole (34). The stator pole channel (60) is in fluid communication with the outer radial channel (58). The stator pole channel (60) extends radially within the respective stator pole (34). The coolant (56) has magnetic properties disposed in the stator cooling circuits (54).