WO2023164886A1 - 多相交流轭部绕组定子 - Google Patents

多相交流轭部绕组定子 Download PDF

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Publication number
WO2023164886A1
WO2023164886A1 PCT/CN2022/079048 CN2022079048W WO2023164886A1 WO 2023164886 A1 WO2023164886 A1 WO 2023164886A1 CN 2022079048 W CN2022079048 W CN 2022079048W WO 2023164886 A1 WO2023164886 A1 WO 2023164886A1
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Prior art keywords
yoke
phase
winding
yoke winding
positive
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PCT/CN2022/079048
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English (en)
French (fr)
Inventor
罗灿
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罗灿
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Priority to PCT/CN2022/079048 priority Critical patent/WO2023164886A1/zh
Publication of WO2023164886A1 publication Critical patent/WO2023164886A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/12—Asynchronous induction motors for multi-phase current
    • H02K17/14—Asynchronous induction motors for multi-phase current having windings arranged for permitting pole-changing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current

Definitions

  • the invention relates to a stator of a polyphase AC motor.
  • the armature windings of each phase use wires to wind around the yoke of the stator core to form a yoke winding, and each section of the yoke winding is arranged along the yoke section; multi-phase alternating current is connected, and each section of the yoke winding forms a forward yoke
  • the internal magnetic flux and the negative yoke magnetic flux gather to form magnetic poles at the nearest adjacent teeth, and the changing magnetic poles form a rotating stator magnetic field; the rotor can be driven.
  • This is the polyphase AC yoke winding stator.
  • the components of the motor include stators, rotors, poles, supporting components and casings.
  • the motor is generally a cylindrical rotor located inside the center of the motor, and a circular stator located outside to surround the rotor. This is an inner rotor radial flux motor.
  • Topological technology can realize that the cylindrical stator is located inside the center of the motor, and the ring-shaped rotor is located outside to surround the stator, which is an outer rotor radial flux motor.
  • Topological technology can also realize that the disk-shaped stator is located on one side of the motor, and the disk-shaped rotor is located on the other side of the motor. Both the stator and the rotor rotate around the motor shaft, which is an axial flux motor.
  • Topological technology can also realize a linear motor in which the linear stator and the linear rotor move in parallel.
  • the topology technology described is a mature technology. All motors strive to reduce volume and weight and improve efficiency. The motor can be improved by improving the stator, the key component of the motor.
  • Traditional multi-phase AC motors including AC induction motors, AC excitation synchronous motors, AC permanent magnet synchronous motors, hysteresis motors and synchronous reluctance motors, the armature windings of each phase of their stators are wound with wires around the teeth of the stator core The tooth windings are formed, and each tooth winding is arranged in the slot between adjacent teeth.
  • each tooth winding directly forms a magnetic pole, and the changing magnetic pole forms a rotating stator magnetic field to drive the rotor.
  • the space between the teeth is the slot.
  • the wires parallel to the motor shaft in the tooth winding are all arranged in the slot, which requires a deep groove depth, a high tooth height, and a large tooth weight.
  • the multi-phase alternating current is a multi-phase current in which the current potential of each phase changes sinusoidally over time, including sinusoidal alternating current, near-sinusoidal alternating current, and simulated sinusoidal alternating current generated by an inverter, all of which are mature technologies.
  • the two phase currents in the two-phase alternating current are staggered by 90 degree electric phases
  • the three phase currents in the three-phase alternating current are staggered by 120 degree electric phases from each other
  • the q phase currents of the q-phase alternating current are mutually staggered by (360/q) electric phases .
  • the control of multi-phase alternating current adopts mature technologies, such as current hysteresis control, space vector control, variable voltage variable frequency control, field oriented control, direct torque control, optimal efficiency control, pulse width modulation control and sensorless control, etc.
  • the present invention proposes a multi-phase AC yoke winding stator, which is to improve the motor by improving the stator, reduce the self-weight of the motor, and improve the efficiency of the motor.
  • the electric motor industry needs the polyphase AC yoke wound stator of the present invention to improve electric motors.
  • the multi-phase AC yoke winding stator of the present invention is composed of a stator core and an armature winding, and can form a motor with components such as a rotor, electrodes, supporting parts, and a casing.
  • the rotor, poles, supporting parts and casing adopt mature technology.
  • the constituent motors are of mature technology.
  • the present invention is characterized in that: the armature windings of each phase use electric wires to wind around the yoke of the stator core to form yoke windings, and each segment of the yoke windings is arranged along the yoke section, and multi-phase alternating current is fed in.
  • the stator core adopts mature technology and is made of high magnetic flux materials.
  • it is made of silicon steel, laminated silicon steel, and the like.
  • the stator core is set as required, so that each tooth is uniformly arranged along the circumferential direction and faces the rotor inwardly, the yoke is in the shape of a ring parallel to the moving direction of the rotor, and the yoke is connected to each tooth to form the stator core.
  • the armature winding is a wire structure that passes through the multi-phase alternating current to form the changing yoke magnetic flux and finally forms the magnetic field of the rotating stator, including the multi-phase armature winding.
  • the armature winding of each phase adopts electric wires to wind around the yoke of the stator core to form a yoke winding, which is arranged along the yoke section.
  • Each phase of the armature winding includes the same number of segments of the yoke winding, and the wires and the number of turns of each segment of the yoke winding are the same.
  • the connection methods between the yoke windings of each section including series connection, parallel connection and hybrid connection, are all mature technologies in the motor industry.
  • each section of the yoke winding is determined according to the yoke orientation method: select a stator core section parallel to the moving direction of the rotor, and set the clockwise direction in the cross-sectional view as the positive direction of the yoke magnetic flux, that is, when the yoke magnetic flux
  • the N pole direction of the yoke is clockwise, it is the positive yoke flux
  • the N pole direction of the yoke flux is counterclockwise, it is the negative yoke flux.
  • the yoke winding that forms a positive yoke magnetic flux when a positive current flows is a positive yoke winding
  • the yoke winding that forms a negative yoke magnetic flux when a positive current flows is a negative yoke winding.
  • the yoke winding that forms a positive yoke magnetic flux when a current flows is a negative yoke winding
  • the yoke winding that forms a negative yoke magnetic flux when a negative current flows is a positive yoke winding.
  • the first yoke winding setting method when the number of pole pairs of the stator is 1, four sections of yoke windings are arranged clockwise on the yoke, that is, a-phase positive yoke windings (+a) , b-phase positive yoke winding (+b), a-phase negative yoke winding (-a) and b-phase negative yoke winding (-b), as shown in Figure 4.
  • yoke windings are arranged clockwise on the yoke, that is, a-phase positive yoke winding (+a), b-phase positive yoke winding (+b), a-phase negative Yoke winding (-a), b-phase negative yoke winding (-b), a'-phase positive yoke winding (+a'), b'-phase positive yoke winding (+b'), a'-phase negative yoke Part winding (-a') and b' phase negative yoke winding (-b'), as shown in Figure 5.
  • the second yoke winding setting method when the number of pole pairs of the stator is 1, 6 sections of yoke windings are arranged clockwise on the yoke, that is, a-phase positive yoke windings (+a) , c-phase negative yoke winding (-c), b-phase positive yoke winding (+b), a-phase negative yoke winding (-a), c-phase positive yoke winding (+c) and b-phase negative yoke Winding (-b), as shown in Figure 1.
  • Three-phase alternating current is connected, and the third yoke winding setting method: when the number of stator pole pairs is 2, 6 sections of yoke windings are arranged clockwise on the yoke, that is, a-phase positive yoke windings (+a) , b-phase positive yoke winding (+b), c-phase positive yoke winding (+c), a'-phase positive yoke winding (+a'), b'-phase positive yoke winding (+b') and c 'Phase positive yoke winding (+c'), as shown in Figure 7.
  • each yoke winding When each yoke winding is supplied with multi-phase alternating current, some yoke windings form positive yoke magnetic flux, and other yoke windings form negative yoke magnetic flux, and the yoke magnetic flux in each yoke section is only One direction, or flux is zero.
  • the magnetic fluxes of adjacent co-directional yokes are connected in series, and the magnetic fluxes of adjacent non-directional yokes gather together. Gathered at the nearest adjacent teeth to form poles.
  • Adjacent yoke magnetic fluxes in the same direction are connected in series to form a set of yoke magnetic fluxes, and the teeth of the adjacent teeth (N poles) of a set of yoke magnetic flux heads (N poles) form tooth magnetic fluxes to form N poles.
  • the tooth most adjacent to the outer flux tail (S pole) forms the tooth flux to form the S pole.
  • the N pole is the north pole
  • the S pole is the south pole
  • + is a plus or plus sign
  • - is a minus or minus sign.
  • the stator of the present invention can be used as a component in AC induction motors, AC excitation synchronous motors, AC permanent magnet synchronous motors, hysteresis motors and synchronous reluctance motors.
  • the present invention forms a cage type AC induction motor with components such as a cage type induction rotor, as shown in Fig. 1 and Fig. 4 .
  • the invention forms a wound AC induction motor (including a double-fed AC induction motor) with components such as a wound induction rotor, wherein the number of pole pairs of the wound induction rotor is equal to the number of pole pairs of the stator.
  • the invention forms an AC excitation synchronous motor with the excitation synchronous rotor and other components, wherein the number of pole pairs of the excitation synchronous rotor is equal to the number of stator pole pairs.
  • the present invention forms an AC permanent magnet synchronous motor with components such as a permanent magnet synchronous rotor, wherein the number of pole pairs of the permanent magnet synchronous rotor is equal to the number of stator pole pairs, see Fig. 3 and Fig. 6 .
  • the invention forms a hysteresis motor with components such as a hysteresis rotor.
  • the invention forms a synchronous reluctance motor with axial laminated rotors and other components, wherein the number of pole pairs of the axial laminated rotor is equal to the number of stator pole pairs, and the axial laminated rotor is equipped with a cage induction bar, a front ring and a rear end Ring, see Figure 2.
  • the armature windings of each phase are wound around the teeth of the stator core, and the windings of each tooth form a magnetic pole and finally form a rotating stator magnetic field.
  • the present invention relates to the innovation of the stator structure, the winding and arrangement of the armature windings of each phase of the stator, and also the innovation of the operation mechanism of the magnetic flux gathering at the yoke to form the magnetic poles and finally the magnetic field of the rotating stator.
  • the advantage of the present invention is that the efficiency of forming the stator magnetic field is high due to the magnetic flux gathering effect of the yoke to form the magnetic poles.
  • the invention innovates the structure of the motor, reduces the dead weight and improves the efficiency.
  • the present invention describes the stator and motor by taking the radial flux inner rotor motor as an example.
  • the present invention also includes radial flux outer rotor motors, axial flux motors and linear motors, which can be easily deduced by those skilled in the art by using topology technology.
  • phase number is also applied to the phase number of each section of the yoke winding of each phase in the present invention; a, a' and a "represent the first phase or positive or negative different sections of the yoke winding, b, b' and b" denotes the different lengths of the yoke winding, either positive or negative, of the second phase, c, c' and c" denote the different lengths of the yoke winding, either positive or negative, of the third phase, and so on.
  • the aforementioned two-phase AC power supply is a mature technology.
  • each of the two phases is provided with a positive pole and a negative pole connected to the power supply circuit.
  • the aforementioned three-phase alternating current is a mature technology.
  • the connection modes of the three-phase electrodes and the power supply circuit include star connection (Y connection) and delta connection ( ⁇ connection).
  • the phases of multi-phase alternating current are symmetrical, that is, the yoke windings of each phase are similar, and the corresponding wires and turns are the same.
  • the stator core, rotor core, high magnetic flux material, yoke, tooth, tooth height, slot depth, magnetic pole, aggregation, rotating stator magnetic field and pole pair number are all mature technologies.
  • the wire, wire diameter, connector, number of turns, winding, armature winding, tooth winding, winding, positive pole, negative pole, connection, electrical phase, cage induction rotor, wound induction rotor, excitation synchronous rotor, Permanent magnet synchronous rotors, hysteresis rotors and axial laminated rotors are all mature technologies.
  • Fig. 1 is a sectional view of a three-phase AC yoke armature winding stator and rotor with a pair of pole pairs, which is also a schematic diagram of Embodiment 1.
  • 1 is the stator core yoke
  • 2 is the stator core tooth
  • 3 is the yoke winding
  • 4 is Rotor core
  • 5 is cage induction rotor bar.
  • Fig. 2 is a sectional view of a three-phase AC yoke armature winding stator and a rotor with two pairs of pole pairs, which is also a schematic diagram of embodiment 2.
  • 1 is the stator core yoke
  • 2 is the stator core tooth
  • 3 is the yoke winding
  • (+a, -c, +b, -a, +c, -b, +a′, -c ', +b', -a', +c' and -b') are twelve sections in total
  • 4 is the axial laminated rotor core steel sheet
  • 5 is the axial insulation layer
  • 6 is the rotor shaft
  • 7 is the cage type induction rotor bar.
  • Fig. 3 is a cross-sectional view of a three-phase AC yoke armature winding stator and rotor with three pairs of pole pairs.
  • 1 is the stator core yoke
  • 2 is the stator core tooth
  • 3 is the yoke winding
  • a total of eighteen sections 4 for the rotor Iron core
  • 5 is permanent magnet.
  • Fig. 4 is a sectional view of a two-phase AC yoke armature winding stator and rotor with a pair of pole pairs.
  • 1 is the stator core yoke
  • 2 is the stator core teeth
  • 3 is the yoke winding
  • 4 is the rotor core
  • 5 is Cage induction rotor bars.
  • Fig. 5 is a sectional view of the stator and the rotor of the two-phase AC yoke armature winding with two pairs of pole pairs.
  • 1 is the stator core yoke
  • 2 is the stator core tooth
  • 3 is the yoke winding
  • 4 is the rotor core
  • 5 is the cage induction rotor guide bar.
  • Fig. 6 is a sectional view of a stator and a rotor of a two-phase AC yoke armature winding with three pairs of pole pairs, which is also a schematic diagram of Embodiment 3.
  • 1 is the stator core yoke
  • 2 is the stator core tooth
  • 3 is the yoke winding
  • (+a,+b,-a,-b, +a',+b',-a', -b', +a", +b", -a” and -b” have twelve sections in total
  • 4 is the rotor core
  • 5 is the permanent magnet
  • the arrow in the permanent magnet indicates the direction of the N pole.
  • Fig. 7 is the second sectional view of the stator and rotor of the three-phase AC yoke armature winding with two pairs of pole pairs.
  • 1 is the stator core yoke
  • 2 is the stator core tooth
  • 3 is the yoke winding
  • 4 is the rotor core
  • 5 is the cage induction rotor bar.
  • Figure 8 is the second sectional view of the three-phase AC yoke armature winding stator and rotor with three pairs of pole pairs.
  • 1 is the stator core yoke
  • 2 is the stator core tooth
  • 3 is the yoke winding
  • 4 for the rotor core 5 for the cage induction rotor bar.
  • the curly brackets indicate the phase number of each yoke winding.
  • the phase number is a mature technology for winding labeling.
  • Each yoke winding is represented by a small number of turns of wires, and the actual number of turns of wires is set according to actual needs.
  • the electrodes, supporting parts and casing are not shown, and the front and rear rings of the cage induction rotor are not shown.
  • the number of guide bars of the cage induction rotor is for reference only, and the actual number is set according to actual needs.
  • the direction of the N pole of each permanent magnet is shown by the arrow drawn in the permanent magnet.
  • the parts only show the mutual relationship and do not reflect the actual size.
  • Embodiment 1 A three-phase AC yoke armature winding stator with a pair of pole pairs, which is composed of a stator core and an armature winding, as shown in Figure 1, and consists of a cage induction rotor, electrodes, supporting components, and a casing. Three-phase AC induction motor. Cage induction rotors, poles, support components and housings use proven technology.
  • the stator core is made of high magnetic flux material laminated silicon steel, using mature technology.
  • the stator core is set as required, so that the six teeth are evenly arranged in the circumferential direction toward the rotor, the yoke is in the shape of a ring parallel to the moving direction of the rotor, and the six-section yoke connects the six teeth to form the stator core.
  • the armature winding is a three-phase armature winding.
  • the armature windings of each phase are wound around the yoke of the stator core with wires and arranged in segments along the yoke.
  • the two yoke windings of each armature winding are connected in parallel.
  • the positive and negative of each yoke winding is determined by the yoke orientation method.
  • the yoke winding setting method adopts the second yoke winding setting method, and six sections of yoke windings are arranged clockwise on the stator yoke, that is, a-phase positive yoke winding (+a), c-phase negative yoke winding (-c), b-phase positive yoke winding (+b), a-phase negative yoke winding (-a), c-phase positive yoke winding (+c) and b-phase negative yoke winding (-b); stator
  • the number of pole pairs is 1.
  • the yoke windings are fed with three-phase alternating current, some yoke windings form positive yoke magnetic flux, and some yoke windings form negative yoke magnetic flux.
  • the magnetic fluxes of adjacent co-directional yokes are connected in series, and the magnetic fluxes of adjacent non-directional yokes gather together. Gathered at the nearest adjacent teeth to form poles.
  • the phase of the alternating current changes, the magnetic poles formed by the aggregation change, forming a rotating stator magnetic field, which can drive the rotor.
  • the motor in this embodiment adopts a cage-type induction rotor, which is composed of a rotor core, a cage-type induction rotor guide bar, a front end ring and a rear-end ring. All sixteen cage-type induction rotor bar bars are short-circuited by the front end ring. The back end is shorted by the back end ring.
  • Fig. 1 is a sectional view, in which the front end ring and the rear end ring are not cut.
  • the cage-type induction rotor and guide bars, front-end ring and rear-end ring all adopt mature technology.
  • Embodiment 2 Three-phase AC yoke armature winding stator with two pairs of pole pairs, composed of stator core and armature winding, and synchronous reluctance with axially laminated rotor, electrodes, supporting parts and casing motor. Axially laminated rotors, poles, support components and casings are of proven technology.
  • the stator core is made of laminated silicon steel, using mature technology.
  • the stator core is set as required so that the twelve teeth are uniformly arranged in the circumferential direction towards the rotor, the yoke is in the shape of a ring parallel to the moving direction of the rotor, and the twelve segments of the yoke connect the twelve teeth to form the stator core.
  • the armature winding is a three-phase armature winding.
  • the armature windings of each phase are wound around the yoke of the stator core with wires and arranged in segments along the yoke.
  • the four yoke windings of each armature winding are connected in parallel.
  • the positive and negative of each yoke winding is determined by the yoke orientation method.
  • the yoke winding setting method adopts the second yoke winding setting method. Twelve sections of yoke windings are arranged clockwise on the stator yoke, that is, phase a positive yoke winding (+a), phase c negative yoke Winding (-c), phase b positive yoke winding (+b), phase a negative yoke winding (-a), phase c positive yoke winding (+c), phase b negative yoke winding (-b), a' phase positive yoke winding (+a'), c' phase negative yoke winding (-c'), b' phase positive yoke winding (+b'), a' phase negative yoke winding (-a' ), c′-phase positive yoke winding (+c′) and b′-phase negative yoke winding (-b′), as shown in Figure 2; the number of stator pole pairs is 2.
  • the yoke windings are fed with three-phase alternating current, some yoke windings form positive yoke magnetic flux, and some yoke windings form negative yoke magnetic flux.
  • the magnetic fluxes of adjacent co-directional yokes are connected in series, and the magnetic fluxes of adjacent non-directional yokes gather together. Gathered at the nearest adjacent teeth to form poles.
  • the phase of the alternating current changes, the magnetic poles formed by the aggregation change, forming a rotating stator magnetic field, which can drive the rotor.
  • the motor in this embodiment adopts an axially laminated rotor, and the cage-type induction bar provided with the rotor provides the starting force.
  • each set of q-d axis lamination structures is manufactured by stacking four layers of curved lamination steel sheets parallel to the axial direction and three layers of insulating layers.
  • the rotor has four q-axes, four d axis, the number of rotor pole pairs is two. Both the axial lamination structure and the q-d axis adopt mature technology.
  • Embodiment 3 Two-phase AC yoke armature winding stator with three pairs of pole pairs, which is composed of stator core and armature winding, and two-phase AC permanent Magnetic synchronous motor.
  • the permanent magnet synchronous rotor, poles, supporting parts and casing adopt mature technology.
  • the stator core is made of high magnetic flux material laminated silicon steel, using mature technology.
  • the stator core is set as required so that the twelve teeth are uniformly arranged in the circumferential direction towards the rotor, the yoke is in the shape of a ring parallel to the moving direction of the rotor, and the twelve segments of the yoke connect the twelve teeth to form the stator core.
  • the armature winding is a two-phase armature winding.
  • the armature windings of each phase are wound around the yoke of the stator core with wires and arranged in segments along the yoke.
  • the six segments of the yoke windings of each armature winding are connected in parallel.
  • the positive and negative of each yoke winding is determined by the yoke orientation method.
  • the yoke winding setting method adopts the first yoke winding setting method. Twelve sections of yoke windings are arranged clockwise on the stator yoke, that is, a-phase positive yoke winding (+a), b-phase positive yoke Winding (+b), a-phase negative yoke winding (-a), b-phase negative yoke winding (-b), a'-phase positive yoke winding (+a'), b'-phase positive yoke winding (+ b'), a' phase negative yoke winding (-a'), b' phase negative yoke winding (-b'), a" phase positive yoke winding (+a"), b" phase positive yoke winding (+b"), a" phase negative yoke winding (-a") and b" phase negative yoke winding (-b”), as shown in Figure 6; the number of stator pole pairs is 3.
  • the yoke windings are supplied with two-phase alternating current, some yoke windings form positive yoke magnetic flux, and some yoke windings form negative yoke magnetic flux.
  • the magnetic fluxes of adjacent co-directional yokes are connected in series, and the magnetic fluxes of adjacent non-directional yokes gather together. Gathered at the nearest adjacent teeth to form poles.
  • the phase of the alternating current changes, the magnetic poles formed by the aggregation change, forming a rotating stator magnetic field, which can drive the rotor.
  • the motor in this embodiment adopts a permanent magnet synchronous rotor, and six permanent magnets are evenly arranged on the surface of the rotor iron core. pair of poles.
  • the described setting permanent magnet adopts mature technology.
  • Fig. 3 illustrates a cross-sectional view of an AC permanent magnet synchronous motor with three pairs of pole pairs, and its stator is a three-phase AC three-pair pole logarithm stator.
  • Fig. 4 shows the sectional view of a two-phase AC induction motor with a pair of pole pairs, and its stator is a two-phase AC with a pair of pole pairs.
  • Fig. 5 shows a cross-sectional view of a two-phase AC induction motor with two pairs of pole pairs, the stator of which is a two-phase AC two-pole-logarithm stator. It can be used as a reference and supplement for the above embodiments.
  • stator s pole arc, tooth width, tooth height (extremely high), tooth shape, yoke thickness, wire diameter, number of turns, and detailed properties of the rotor are not shown. Adopt mature technology.

Abstract

多相交流轭部绕组定子，由定子铁芯和电枢绕组组成，可与转子、电极、支承部件和机壳等部件组成电机，特征是：各相电枢绕组采用电线围绕定子铁芯轭部绕制形成轭部绕组，分段设置。轭部绕组设置方式有三种，任选其中之一。通入多相交流电，相邻的同向轭部磁通相互串联，相邻的异向轭部磁通相互聚集；聚集在最邻近的齿部形成磁极，磁极变化形成转动定子磁场，驱动电机运行。

Description

多相交流轭部绕组定子 技术领域
本发明涉及一种多相交流电机的定子。具体是各相电枢绕组采用电线围绕定子铁芯的轭部绕制形成轭部绕组，各段轭部绕组沿轭部分段设置；通入多相交流电，各段轭部绕组形成的正向轭部磁通和负向轭部磁通聚集，在最邻近的齿部形成磁极，变化的磁极形成转动定子磁场；可以驱动转子。这就是多相交流轭部绕组定子。
背景技术
电机的部件包括定子、转子、电极、支承部件和机壳等。电机一般是圆柱状转子位于电机中心内部、圆环状定子位于外部包围转子，这是内转子径向磁通电机。拓扑技术可以实现圆柱状定子位于电机中心内部，圆环状转子位于外部包围定子，这是外转子径向磁通电机。拓扑技术还可以实现盘状定子位于电机一侧，盘状转子位于电机另一侧，定子转子均围绕电机轴转动，这是轴向磁通电机。拓扑技术还可以实现线状定子与线状转子相对平行运动的直线电机。所述拓扑技术是成熟技术。电机都努力减小体积重量，提高效率。改进电机的关键部件定子，就可以改进电机。传统多相交流电机，包括交流感应电机、交流励磁同步电机、交流永磁同步电机、磁滞电动机和同步磁阻电机，它们的定子各相电枢绕组采用电线围绕定子铁芯的齿部绕制形成齿部绕组，各齿部绕组设置在相邻齿部之间的槽中，通入多相交流电后，各齿部绕组直接形成磁极，变化中的磁极形成转动定子磁场驱动转子。齿部之间的空间就是槽，传统定子，其齿部绕组中平行于电机轴的电线全都设置在槽中，需要槽深度较深，齿部高度较高，齿部自重较大。定子的电枢绕组改采用轭部绕组后，需要槽深度较浅，齿部高度较低，齿部自重较小，电机效率较高。所述多相交流电是每相电流电势随时间按正弦分布变化的多相电流，包括正弦交流电、接近正弦的交流电、逆变器产生的模拟正弦交流电等，均为成熟技术。其中二相交流电中的二个相电流错开90度电相位，三相交流电中的三个相电流相互错开120度电相位，q相交流电的q个相电流相互错开(360/q)度电相位。对多相交流电的控制采用成熟技术，例如电流滞环控制、空间矢量控制、变压变频控制、磁场定向控制、直接转矩控制、最优效率控制、脉宽调制控制和无传感器控制等。
本发明提出多相交流轭部绕组定子，就是要通过改进定子来改进电机，减小电机的自重，提高电机效率。电机行业需要本发明多相交流轭部绕组定子来改进电机。
发明内容
本发明多相交流轭部绕组定子，由定子铁芯和电枢绕组组成，可与转子、电极、支承部件和机壳等部件组成电机。所述转子、电极、支承部件和机壳采用成熟技术。所述组成电机采用成熟技术。本发明特征在于：各相电枢绕组采用电线围绕定子铁芯的轭部绕制形成轭部绕组，各段轭部绕组沿轭部分段设置，通入多相交流电。
定子铁芯采用成熟技术，采用高磁通材料制造。例如采用硅钢、层叠硅钢等制造。根据需要设置定子铁芯，使各个齿部沿圆周方向均匀布置向内朝向转子，轭部平行于转子运动方向呈圆环状，轭部连接各个齿部形成定子铁芯。
电枢绕组是通入多相交流电形成变化的轭部磁通最终形成转动定子磁场的电线结构，包括多相电枢绕组。本发明中每相电枢绕组采用电线围绕定子铁芯的轭部绕制形成轭部绕组，沿轭部分段设置。每相电枢绕组均包括相同数量段的轭部绕组，各段轭部绕组的电线和匝数等内容相同。各段轭部绕组之间的连接方式，包括串联连接、并联连接和混合连接等，均为电机行业的成熟技术。各段轭部绕组的正负按轭部定向方法确定：平行于转子运动方向选定一个定子铁芯截面，设该截面图中顺时针方向为轭部磁通正向，即当轭部磁通的N极方向顺时针就是正向轭部磁通，当轭部磁通的N极方向逆时针时就是负向轭部磁通。按右手螺旋定则，流通正电流时形成正向轭部磁通的轭部绕组为正轭部绕组，流通正电流时形成负向轭部磁通的轭部绕组为负轭部绕组，流通负电流时形成正向轭部磁通的轭部绕组为负轭部绕组，流通负电流时形成负向轭部磁通的轭部绕组为正轭部绕组。
轭部绕组设置方式有三种，任选其中之一。通入二相交流电，第一种轭部绕组设置方式：定子极对数为1时，在轭部上沿顺时针方向依次设置4段轭部绕组，即a相正轭部绕组(+a)、b相正轭部绕组(+b)、a相负轭部绕组(-a)和b相负轭部绕组(-b)，如图4。定子极对数为2时，在轭部上沿顺时针方向依次设置8段轭部绕组，即a相正轭部绕组(+a)、b相正轭部绕组(+b)、a相负轭部绕组(-a)、b相负轭部绕组(-b)、a′相正轭部绕组(+a′)、b′相正轭部绕组(+b′)、a′相负轭部绕组(-a′)和b′相负轭部绕组(-b′)，如图5。定子极对数为3时，在轭部上沿顺时针方向依次设置12段轭部绕组，即a相正轭部绕组(+a)、b相正轭部绕组(+b)、a相负轭部绕组(-a)、b相负轭部绕组(-b)、a′相正轭部绕组(+a′)、b′相正轭部绕组(+b′)、a′相负轭部绕组(-a′)、b′相负轭部绕组(-b′)、a″相正轭部绕组(+a″)、b″相正轭部绕组(+b″)、a″相负轭部绕组(-a″)和b″相负轭部绕组(-b″)，如图6。定子极对数为P时，在轭部上沿顺时针方向依次设置4*P段轭部绕组，其第一种轭部绕组设置方式依此类推。P为大于3的自然数。
通入三相交流电，第二种轭部绕组设置方式：定子极对数为1时，在轭部上沿顺时针方向依次设置6段轭部绕组，即a相正轭部绕组(+a)、c相负轭部绕组(-c)、b相正轭部绕组 (+b)、a相负轭部绕组(-a)、c相正轭部绕组(+c)和b相负轭部绕组(-b)，如图1。定子极对数为2时，在轭部上沿顺时针方向依次设置12段轭部绕组，即a相正轭部绕组(+a)、c相负轭部绕组(-c)、b相正轭部绕组(+b)、a相负轭部绕组(-a)、c相正轭部绕组(+c)、b相负轭部绕组(-b)、a′相正轭部绕组(+a′)、c′相负轭部绕组(-c′)、b′相正轭部绕组(+b′)、a′相负轭部绕组(-a′)、c′相正轭部绕组(+c′)和b′相负轭部绕组(-b′)，如图2。定子极对数为3时，在轭部上沿顺时针方向依次设置18段轭部绕组，即a相正轭部绕组(+a)、c相负轭部绕组(-c)、b相正轭部绕组(+b)、a相负轭部绕组(-a)、c相正轭部绕组(+c)、b相负轭部绕组(-b)、a′相正轭部绕组(+a′)、c′相负轭部绕组(-c′)、b′相正轭部绕组(+b′)、a′相负轭部绕组(-a′)、c′相正轭部绕组(+c′)、b′相负轭部绕组(-b′)、a″相正轭部绕组(+a″)、c″相负轭部绕组(-c″)、b″相正轭部绕组(+b″)、a″相负轭部绕组(-a″)、c″相正轭部绕组(+c″)和b″相负轭部绕组(-b″)，如图3。定子极对数为P时，在轭部上沿顺时针方向依次设置6*P段轭部绕组，其第二种轭部绕组设置方式依此类推。
通入三相交流电，第三种轭部绕组设置方式：定子极对数为2时，在轭部上沿顺时针方向依次设置6段轭部绕组，即a相正轭部绕组(+a)、b相正轭部绕组(+b)、c相正轭部绕组(+c)、a′相正轭部绕组(+a′)、b′相正轭部绕组(+b′)和c′相正轭部绕组(+c′)，如图7。定子极对数为3时，在轭部上沿顺时针方向依次设置9段轭部绕组，即a相正轭部绕组(+a)、b相正轭部绕组(+b)、c相正轭部绕组(+c)、a′相正轭部绕组(+a′)、b′相正轭部绕组(+b′)、c′相正轭部绕组(+c′)、a″相正轭部绕组(+a″)、b″相正轭部绕组(+b″)和c″相正轭部绕组(+c″)，如图8。定子极对数为为P时，在轭部上沿顺时针方向依次设置3*P段轭部绕组，其第三种轭部绕组设置方式依此类推。
当各轭部绕组通入多相交流电时，一些段轭部绕组形成正向轭部磁通，另一些段轭部绕组形成负向轭部磁通，每一段轭部中的轭部磁通只有一种方向，或磁通为零。相邻的同向轭部磁通相互串联，相邻的异向轭部磁通相互聚集。聚集在最邻近的齿部形成磁极。相邻的同向轭部磁通相互串联形成一组轭部磁通，在一组轭部磁通头部(N极)最邻近的齿部形成齿部磁通形成N极，在一组轭部磁通尾部(S极)最邻近的齿部形成齿部磁通形成S极。随着交流电电相位变化，正向轭部磁通和负向轭部磁通变化，聚集形成的磁极变化，形成转动定子磁场。转动定子磁场驱动转子是成熟技术。N极是北极，S极是南极，+是加号或正号，-是减号或负号。通入相同频率的多相交流电，当定子极对数为Q时，转动定子磁场转速是定子极对数为一时转动定子磁场转速的Q分之一。
本发明定子作为部件可用于交流感应电机、交流励磁同步电机、交流永磁同步电机、磁 滞电动机和同步磁阻电机等。本发明与笼式感应转子等部件组成笼式交流感应电机，参见图1和图4。本发明与绕线式感应转子等部件组成绕线式交流感应电机(包括双馈交流感应电机)，其中绕线式感应转子极对数等于定子极对数。本发明与励磁同步转子等部件组成交流励磁同步电机，其中励磁同步转子极对数等于定子极对数。本发明与永磁同步转子等部件组成交流永磁同步电机，其中永磁同步转子极对数等于定子极对数，参见图3和图6。本发明与磁滞转子等部件组成磁滞电动机。本发明与轴向叠片转子等部件组成同步磁阻电机，其中轴向叠片转子极对数等于定子极对数，该轴向叠片转子自带笼式感应导条、前端环和后端环，参见图2。
传统多相交流电机的定子，其各相电枢绕组均围绕定子铁芯的齿部绕制，各齿部绕组形成磁极最终形成转动定子磁场。本发明是关于定子结构、关于定子各相电枢绕组的绕制和设置的创新，也是轭部磁通聚集形成磁极最终形成转动定子磁场的运行机制的创新。本发明有益之处在于：由于轭部磁通聚集形成磁极的聚磁效应，形成定子磁场的效率较高。由于在同一段轭部上只有同向的轭部绕组，没有异向轭部绕组，不相互干扰，效率较高。由于轭部绕组中平行于电机轴的部分只有一半设置在槽中，需要槽的深度较浅，齿部的高度较矮，自重较轻。本发明创新了电机的结构，减小了自重，改进了效率。在此之前没有相同的定子。本发明叙述定子及电机以径向磁通内转子电机为例，本发明也包括径向磁通外转子电机、轴向磁通电机和直线电机，业内技术人员利用拓扑技术容易推导出来。
上述给某相电枢绕组的不同段轭部绕组的相位序号加“′”一撇标示或加“″”二撇标示为成熟技术，原本应用于传统电机定子的各相的各齿部绕组的相位序号，在本发明中也应用于各相的各段轭部绕组的相位序号；a、a′和a″表示第一相的或正或负的不同段轭部绕组，b、b′和b″表示第二相的或正或负的不同段轭部绕组，c、c′和c″表示第三相的或正或负的不同段轭部绕组，等等。当定子有一对极对数时，“′”和“″”不出现。当定子有二对极对数时，“′”出现。当定子有三对极对数时，“′”和“″”均出现。上述通入二相交流电为成熟技术，例如二相中每相各设正极、负极与供电电路相连接。上述通入三相交流电为成熟技术，例如三个相的电极与供电电路的连接方式有星形连接(Y形连接)以及三角形连接(△形连接)。多相交流电各相对称，即各相的各段轭部绕组相类似，电线、匝数对应相同。所述定子铁芯、转子铁芯、高磁通材料、轭部、齿部、齿部高度、槽的深度、磁极、聚集、转动定子磁场和极对数均为成熟技术。所述电线、电线线径、接头、匝数、绕组、电枢绕组、齿部绕组、绕制、正极、负极、连接、电相位、笼式感应转子、绕线式感应转子、励磁同步转子、永磁同步转子、磁滞转子和轴向叠片转子均为成熟技术。
附图说明
图1为一对极对数的三相交流轭部电枢绕组定子及转子剖面图，也是实施例1示意图。图中1为定子铁芯轭部，2为定子铁芯齿部，3为轭部绕组，有(+a,-c,+b,-a,+c和-b)共六段，4为转子铁芯，5为笼式感应转子导条。
图2为二对极对数的三相交流轭部电枢绕组定子及转子剖面图，也是实施例2示意图。图中1为定子铁芯轭部，2为定子铁芯齿部，3为轭部绕组，有(+a,-c,+b,-a,+c,-b，+a′,-c′,+b′,-a′,+c′和-b′)共十二段，4为轴向叠片转子铁芯钢片，5为轴向绝缘层，6为转子轴，7为笼式感应转子导条。
图3为三对极对数的三相交流轭部电枢绕组定子及转子剖面图。图中1为定子铁芯轭部，2为定子铁芯齿部，3为轭部绕组，有(+a,-c,+b,-a,+c,-b，+a′,-c′,+b′,-a′，+c′,-b′,+a″,-c″,+b″,-a″,+c″和-b″)共十八段，4为转子铁芯，5为永磁体。
图4为一对极对数的二相交流轭部电枢绕组定子及转子剖面图。图中1为定子铁芯轭部，2为定子铁芯齿部，3为轭部绕组，有(+a,+b,-a和-b)共四段，4为转子铁芯，5为笼式感应转子导条。
图5为二对极对数的二相交流轭部电枢绕组定子及转子剖面图。图中1为定子铁芯轭部，2为定子铁芯齿部，3为轭部绕组，有(+a,+b,-a,-b,+a′,+b′,-a′和-b′)共八段，4为转子铁芯，5为笼式感应转子导条。
图6为三对极对数的二相交流轭部电枢绕组定子及转子剖面图，也是实施例3示意图。图中1为定子铁芯轭部，2为定子铁芯齿部，3为轭部绕组，有(+a,+b,-a,-b，+a′,+b′,-a′，-b′,+a″,+b″,-a″和-b″)共十二段，4为转子铁芯，5为永磁体，永磁体中箭头所示为N极指向。
图7为二对极对数的三相交流轭部电枢绕组定子及转子剖面图二。图中1为定子铁芯轭部，2为定子铁芯齿部，3为轭部绕组，有(+a,+b,+c,+a′,+b′和+c′)共六段，4为转子铁芯，5为笼式感应转子导条。
图8为三对极对数的三相交流轭部电枢绕组定子及转子剖面图二。图中1为定子铁芯轭部，2为定子铁芯齿部，3为轭部绕组，有(+a,+b,+c,+a′,+b′,+c′,+a″,+b″和+c″)共九段，4为转子铁芯，5为笼式感应转子导条。
各图中，大括号指示各轭部绕组的相位序号，相位序号是绕组标示的成熟技术，各轭部绕组以少数匝数电线示意，实际电线匝数按实际需要设置。电极、支承部件和机壳等未画出，笼式感应转子的前端环和后端环未画出，笼式感应转子的导条数量仅供参考，实际数量按实际需要设置。各永磁体的N极方向如永磁体中所画箭头所示。各部件只示意相互关系，未反 映实际尺寸。
具体实施方式
实施例1：一对极对数的三相交流轭部电枢绕组定子，由定子铁芯和电枢绕组组成，如图1，与笼式感应转子、电极、支承部件和机壳等部件组成三相交流感应电机。笼式感应转子、电极、支承部件和机壳采用成熟技术。
定子铁芯采用高磁通材料层叠硅钢制造，采用成熟技术。根据需要设置定子铁芯，使六个齿部沿圆周方向均匀布置朝向转子，轭部平行于转子运动方向呈圆环状，六段轭部连接六个齿部形成定子铁芯。
电枢绕组是三相电枢绕组。每相电枢绕组采用电线围绕定子铁芯的轭部绕制，沿轭部分段设置。每相电枢绕组的两段轭部绕组并联。各个轭部绕组的正负按轭部定向方法确定。
轭部绕组设置方式采用第二种轭部绕组设置方式，在定子轭部上沿顺时针方向依次设置六段轭部绕组，即a相正轭部绕组(+a)、c相负轭部绕组(-c)、b相正轭部绕组(+b)、a相负轭部绕组(-a)、c相正轭部绕组(+c)和b相负轭部绕组(-b)；定子极对数为1。
轭部绕组通入三相交流电，一些轭部绕组形成正向轭部磁通，另一些轭部绕组形成负向轭部磁通。相邻的同向轭部磁通相互串联，相邻的异向轭部磁通相互聚集。聚集在最邻近的齿部形成磁极。随着交流电电相位变化，聚集形成的磁极变化，形成转动定子磁场，可以驱动转子。本实施例中的电机采用笼式感应转子，由转子铁芯、笼式感应转子导条、前端环和后端环组成，所有十六根笼式感应转子导条被前端环短接了前端、被后端环短接了后端。图1是剖面图，图中前端环和后端环未剖到。笼式感应转子及导条、前端环和后端环均采用成熟技术。
实施例2：二对极对数的三相交流轭部电枢绕组定子，由定子铁芯和电枢绕组组成，与轴向叠片转子、电极、支承部件和机壳等部件组成同步磁阻电机。轴向叠片转子、电极、支承部件和机壳采用成熟技术。
定子铁芯用层叠硅钢制造，采用成熟技术。根据需要设置定子铁芯，使十二个齿部沿圆周方向均匀布置朝向转子，轭部平行于转子运动方向呈圆环状，十二段轭部连接十二个齿部形成定子铁芯。
电枢绕组是三相电枢绕组。每相电枢绕组采用电线围绕定子铁芯的轭部绕制，沿轭部分段设置。每相电枢绕组的四段轭部绕组并联。各个轭部绕组的正负按轭部定向方法确定。
轭部绕组设置方式采用第二种轭部绕组设置方式，在定子轭部上沿顺时针方向依次设置十二段轭部绕组，即a相正轭部绕组(+a)、c相负轭部绕组(-c)、b相正轭部绕组(+b)、a 相负轭部绕组(-a)、c相正轭部绕组(+c)、b相负轭部绕组(-b)、a′相正轭部绕组(+a′)、c′相负轭部绕组(-c′)、b′相正轭部绕组(+b′)、a′相负轭部绕组(-a′)、c′相正轭部绕组(+c′)和b′相负轭部绕组(-b′)，如图2；定子极对数为2。
轭部绕组通入三相交流电，一些轭部绕组形成正向轭部磁通，另一些轭部绕组形成负向轭部磁通。相邻的同向轭部磁通相互串联，相邻的异向轭部磁通相互聚集。聚集在最邻近的齿部形成磁极。随着交流电电相位变化，聚集形成的磁极变化，形成转动定子磁场，可以驱动转子。本实施例中的电机采用轴向叠片转子，转子自带的笼式感应导条提供启动力。转子铁芯对称设置四套q-d轴向叠片结构，每套q-d轴叠片结构采用平行于轴向的四层弯曲叠片钢片与三层绝缘层堆叠制造，转子共有四个q轴、四个d轴，转子极对数为二。所述轴向叠片结构和q-d轴均采用成熟技术。
实施例3：三对极对数的二相交流轭部电枢绕组定子，由定子铁芯和电枢绕组组成，与永磁同步转子、电极、支承部件和机壳等部件组成二相交流永磁同步电机。永磁同步转子、电极、支承部件和机壳采用成熟技术。
定子铁芯采用高磁通材料层叠硅钢制造，采用成熟技术。根据需要设置定子铁芯，使十二个齿部沿圆周方向均匀布置朝向转子，轭部平行于转子运动方向呈圆环状，十二段轭部连接十二个齿部形成定子铁芯。
电枢绕组是二相电枢绕组。每相电枢绕组采用电线围绕定子铁芯的轭部绕制，沿轭部分段设置。每相电枢绕组的六段轭部绕组并联。各个轭部绕组的正负按轭部定向方法确定。
轭部绕组设置方式采用第一种轭部绕组设置方式，在定子轭部上沿顺时针方向依次设置十二段轭部绕组，即a相正轭部绕组(+a)、b相正轭部绕组(+b)、a相负轭部绕组(-a)、b相负轭部绕组(-b)、a′相正轭部绕组(+a′)、b′相正轭部绕组(+b′)、a′相负轭部绕组(-a′)、b′相负轭部绕组(-b′)、a″相正轭部绕组(+a″)、b″相正轭部绕组(+b″)、a″相负轭部绕组(-a″)和b″相负轭部绕组(-b″)，如图6；定子极对数为3。
轭部绕组通入二相交流电，一些轭部绕组形成正向轭部磁通，另一些轭部绕组形成负向轭部磁通。相邻的同向轭部磁通相互串联，相邻的异向轭部磁通相互聚集。聚集在最邻近的齿部形成磁极。随着交流电电相位变化，聚集形成的磁极变化，形成转动定子磁场，可以驱动转子。本实施例中的电机采用永磁同步转子，在转子铁芯表面均匀设置六块永磁体，永磁体的N极指向如图6的永磁体中所画箭头所示，六块永磁体共形成三对极对数。所述设置永磁体采用成熟技术。
图3示意了三对极对数的交流永磁同步电机的剖面图，其定子为三相交流三对极对数定子。图4示意了一对极对数的二相交流感应电机的剖面图，其定子为二相交流一对极对数定 子。图5示意了二对极对数的二相交流感应电机的剖面图，其定子为二相交流二对极对数定子。可作为以上各实施例的参照和补充。
在以上各实施例中，未显示定子的极弧、齿宽、齿高(极高)、齿形、轭厚度、线径、匝数和转子的详细性质等指标，对这些指标的优化选取均采用成熟技术。
以上描述了本发明基本原理、主要特征和优点，业内技术人员应该了解，本发明不限于上述实施例，在不脱离本发明精神和范围的前提下，本发明的变化与改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求及同等物界定。

Claims (4)

  1. 多相交流轭部绕组定子，由定子铁芯和电枢绕组组成，可与转子、电极、支承部件和机壳等部件组成电机，特征在于：各相电枢绕组采用电线围绕定子铁芯的轭部绕制形成轭部绕组，各段轭部绕组沿轭部分段设置，通入多相交流电；
    定子铁芯采用成熟技术，包括齿部和轭部；
    电枢绕组包括多相电枢绕组，每相电枢绕组采用电线围绕定子铁芯的轭部绕制，形成轭部绕组，沿轭部分段设置；
    轭部绕组设置方式有三种，任选其中之一；通入二相交流电，第一种轭部绕组设置方式：定子极对数为1时，在轭部上沿顺时针方向依次设置4段轭部绕组，即a相正轭部绕组(+a)、b相正轭部绕组(+b)、a相负轭部绕组(-a)和b相负轭部绕组(-b)；定子极对数为2时，在轭部上沿顺时针方向依次设置8段轭部绕组，即a相正轭部绕组(+a)、b相正轭部绕组(+b)、a相负轭部绕组(-a)、b相负轭部绕组(-b)、a′相正轭部绕组(+a′)、b′相正轭部绕组(+b′)、a′相负轭部绕组(-a′)和b′相负轭部绕组(-b′)；定子极对数为3时，在轭部上沿顺时针方向依次设置12段轭部绕组，即a相正轭部绕组(+a)、b相正轭部绕组(+b)、a相负轭部绕组(-a)、b相负轭部绕组(-b)、a′相正轭部绕组(+a′)、b′相正轭部绕组(+b′)、a′相负轭部绕组(-a′)、b′相负轭部绕组(-b′)、a″相正轭部绕组(+a″)、b″相正轭部绕组(+b″)、a″相负轭部绕组(-a″)和b″相负轭部绕组(-b″)；定子极对数为P时，在轭部上沿顺时针方向依次设置4*P段轭部绕组，其第一种轭部绕组设置方式依此类推。
  2. 如权利要求1所述的多相交流轭部绕组定子，轭部绕组设置方式改为：通入三相交流电，第二种轭部绕组设置方式：定子极对数为1时，在轭部上沿顺时针方向依次设置6段轭部绕组，即a相正轭部绕组(+a)、c相负轭部绕组(-c)、b相正轭部绕组(+b)、a相负轭部绕组(-a)、c相正轭部绕组(+c)和b相负轭部绕组(-b)；定子极对数为2时，在轭部上沿顺时针方向依次设置12段轭部绕组，即a相正轭部绕组(+a)、c相负轭部绕组(-c)、b相正轭部绕组(+b)、a相负轭部绕组(-a)、c相正轭部绕组(+c)、b相负轭部绕组(-b)、a′相正轭部绕组(+a′)、c′相负轭部绕组(-c′)、b′相正轭部绕组(+b′)、a′相负轭部绕组(-a′)、c′相正轭部绕组(+c′)和b′相负轭部绕组(-b′)；定子极对数为3时，在轭部上沿顺时针方向依次设置18段轭部绕组，即a相正轭部绕组(+a)、c相负轭部绕组(-c)、b相正轭部绕组(+b)、a相负轭部绕组(-a)、c相正轭部绕组(+c)、b相负轭部绕组(-b)、a′相正轭部绕组(+a′)、c′相负轭部绕组(-c′)、b′相正轭部绕组(+b′)、a′相负轭部绕组(-a′)、c′相正轭部绕组(+c′)、b′相负轭部绕组(-b′)、a″相正轭部绕组(+a″)、c″相负轭部绕组(-c″)、b″相正轭部绕组(+b″)、a″相负轭部绕组(-a″)、c″相正轭部绕组(+c″)和b″相负轭部绕组(-b″)；定子极对数为P时，在轭部上沿顺 时针方向依次设置6*P段轭部绕组，其第二种轭部绕组设置方式依此类推。
  3. 如权利要求1所述的多相交流轭部绕组定子，轭部绕组设置方式改为：通入三相交流电，第三种轭部绕组设置方式：定子极对数为2时，在轭部上沿顺时针方向依次设置6段轭部绕组，即a相正轭部绕组(+a)、b相正轭部绕组(+b)、c相正轭部绕组(+c)、a′相正轭部绕组(+a′)、b′相正轭部绕组(+b′)和c′相正轭部绕组(+c′)；定子极对数为3时，在轭部上沿顺时针方向依次设置9段轭部绕组，即a相正轭部绕组(+a)、b相正轭部绕组(+b)、c相正轭部绕组(+c)、a′相正轭部绕组(+a′)、b′相正轭部绕组(+b′)、c′相正轭部绕组(+c′)、a″相正轭部绕组(+a″)、b″相正轭部绕组(+b″)和c″相正轭部绕组(+c″)；定子极对数为P时，在轭部上沿顺时针方向依次设置3*P段轭部绕组，其第三种轭部绕组设置方式依此类推。
  4. 如权利要求1所述的多相交流轭部绕组定子，与转子、电极、支承部件和机壳等部件组成电机，电机的运行：各轭部绕组通入多相交流电，相邻的同向轭部磁通相互串联，相邻的异向轭部磁通相互聚集，聚集在最邻近的齿部形成磁极；随着交流电电相位变化，聚集形成的磁极变化，形成转动定子磁场，可以驱动转子。
PCT/CN2022/079048 2022-03-03 2022-03-03 多相交流轭部绕组定子 WO2023164886A1 (zh)

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GB756493A (en) * 1954-02-27 1956-09-05 Emi Ltd Improvements in or relating to alternating current electric motors
CN2035933U (zh) * 1988-05-23 1989-04-12 昆明电机厂 低速重载高速轻载异步电机变级绕组
CN106877531A (zh) * 2017-03-31 2017-06-20 广东威灵电机制造有限公司 电机定子及电机
CN107546946A (zh) * 2017-10-17 2018-01-05 河南理工大学 一种m相定子绕组开关磁阻电机及驱动方法、变极方法
CN207320983U (zh) * 2017-11-10 2018-05-04 广东威灵电机制造有限公司 定子和具有该定子的电机

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB756493A (en) * 1954-02-27 1956-09-05 Emi Ltd Improvements in or relating to alternating current electric motors
CN2035933U (zh) * 1988-05-23 1989-04-12 昆明电机厂 低速重载高速轻载异步电机变级绕组
CN106877531A (zh) * 2017-03-31 2017-06-20 广东威灵电机制造有限公司 电机定子及电机
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