11 results about "Stator poles" patented technology

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.

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).

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 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.

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.

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 stator defines multiple stator poles with associated stator windings. A rotor defines multiple fixed rotor poles with associated teeth with a ferromagnetic material. The fixed rotor poles have associated rotor windings configured to be energized substantially by the stator. Each of the rotor windings is associated with the tooth. Each of the rotor windings includes an alternating current (AC) coil (or auxiliary coil) configured to carry an AC current induced by an AC current flowing in the stator. A direct current (DC) coil (or primary coil) defines a rotor field energizable by magnetic fields produced by the stator windings to produce relative forces between the rotor and the stator. The DC coil is at least partially powered or controlled by the AC coil.

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.

A stator defines multiple stator poles with associated electrical windings. A rotor includes multiple rotor poles. The rotor is movable with respect to the stator and defines, together with the stator, a nominal gap between the stator poles and the rotor poles. The rotor poles includes a magnetically permeable pole material. The rotor also includes a series of frequency programmable flux channels (FPFCs). Each FPFC includes a conductive loop surrounding an associated rotor pole. The stator and the rotor are arranged such that the electrical windings in the stator induce an excitement current within at least one of the FPFCs during start-up.

The utility model discloses a kind of stator-rotor structures for electric supercharger, it is related to electric supercharger technical field, including coaxial arrangement stator and rotor, there is air gap between rotor and stator, stator includes stator tooth and stator pole shoe, multiple stator teeth are arranged on the circumferential inner wall surface of stator tooth in circumferential interval, stator tooth extends inward along radial and inner end is arranged with stator pole shoe, rotor includes rotor sheath and rotor magnet, rotor sheath is coaxially sleeved on rotor magnet, the side wall surface of stator pole shoe away from stator tooth is arranged with open straight groove, the circumferential outer wall surface of rotor sheath is arranged with recessed open inclined groove, open inclined groove is arranged in helical extension. The stator-rotor structure and motor for electric supercharger provided by the utility model are convenient to process and reduce torque ripple and motor noise decibel value in existing motor.