WO2023164879A1

WO2023164879A1 - Yoke-winding-based electric motor of shaded-pole clockwise and anticlockwise rotation type

Info

Publication number: WO2023164879A1
Application number: PCT/CN2022/079033
Authority: WO
Inventors: 罗灿
Original assignee: 罗灿
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2023-09-07

Abstract

A yoke-winding-based electric motor of shaded-pole clockwise and anticlockwise rotation type, wherein a yoke-winding-based induction electric motor of shaded-pole clockwise and anticlockwise rotation type, and a yoke-winding-based hysteresis electric motor of shaded-pole clockwise and anticlockwise rotation type are included. The present invention is composed of a stator, a rotor, a support component, a shell, a control mechanism and other parts, and is characterized in that armature windings of each phase are yoke windings which are arranged along a yoke in segments. A single-phase alternating current is introduced by using a shaded-pole clockwise and anticlockwise rotation method; adjacent yoke magnetic fluxes in the same direction are connected to each other in series, and adjacent yoke magnetic fluxes in different directions gather together; and the gathered yoke magnetic fluxes form tooth magnetic fluxes at the nearest teeth, and changing tooth magnetic fluxes pass through different shaded poles to form a rotating stator magnetic field which rotates anticlockwise and clockwise at multiple speeds, thereby driving the rotor to operate at multiple rated rotation speeds.

Description

Yoke winding shaded pole positive and negative motor

technical field

The invention relates to a single-phase AC shaded pole motor. Specifically, the armature winding adopts the yoke winding to be arranged along the yoke section; single-phase alternating current is passed through according to the positive and negative method of the shaded pole, and the yoke magnetic flux formed by each section of the yoke winding gathers to form a tooth magnetic flux at the nearest adjacent tooth. The changing tooth magnetic flux passes through different shaded poles to form a rotating stator magnetic field with various speeds in reverse and forward rotation to drive the rotor. This is the yoke winding shaded pole reversing motor.

Background technique

The motor is composed of stator, rotor, supporting parts, casing and control mechanism and other components. 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 the axial flux motor in which the disc stator is located on one side of the motor, the disc rotor is located on the other side of the motor, and the stator and rotor are axially opposite. 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. Motors all strive to increase functionality. The motor can be improved by improving the stator, the key component of the motor. In the traditional single-phase AC shaded pole motor, the armature winding adopts tooth winding, and there is only one stator pole pair number, and the rotating stator magnetic field has only one direction and one speed. The invention proposes that the armature winding adopts the yoke winding, and the single-phase alternating current is fed in according to the positive and negative method of the shaded pole. Under the condition that the frequency of the single-phase alternating current remains unchanged, multiple power supply modes of the yoke winding can be switched, and the stator magnetic field can be rotated to realize multiple The rotation speed is forward and reverse, and the motor realizes more abundant functions. The single-phase alternating current is an alternating current whose phase current potential has a sinusoidal waveform or a nearly sinusoidal waveform over time. For example, single-phase alternating current or simulated single-phase alternating current generated by inverters are mature technologies. The control of single-phase AC adopts mature technologies, such as current control, torque control, optimal efficiency control, field weakening control, position sensorless control, etc.

The yoke winding shaded pole positive and negative motor proposed by the present invention, specifically, the armature winding adopts the yoke winding, and the single-phase alternating current is connected according to the shaded pole positive and negative method, and the stator magnetic field has a single-phase AC shaded pole with multiple speed reversal and forward rotation. The motor is to improve the motor and increase the function by improving the stator. The motor industry requires yoke winding shaded pole reversing motors.

Contents of the invention

The yoke winding shaded pole positive and negative motor of the present invention includes a yoke winding shaded pole positive and negative induction motor and a yoke winding shaded pole positive and negative hysteresis motor, and is composed of a stator, a rotor, a supporting component, a casing, a control mechanism and the like. It is characterized in that: the armature winding adopts the yoke winding to be arranged along the yoke section, and the single-phase alternating current is fed in according to the positive and negative method of the shade pole. The yoke winding forms the yoke magnetic flux, and the yoke magnetic flux gathers to form the tooth magnetic flux. The tooth magnetic flux passes through different shaded poles to form a rotating stator magnetic field with various rotation speeds in reverse and forward rotation.

The stator consists of a stator core and an armature winding. The stator core adopts mature technology and is made of high magnetic flux materials. For example, 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 stator core has 4*X teeth and 4*X yoke segments, 4*X is the phase number of the armature winding, and X is a natural number. The clockwise direction of the stator core is the front, and the counterclockwise direction is the rear. Select any tooth as the reverse base, and start from the reverse base to the front and sequentially number each tooth with odd numbers and double numbers alternately. A shaded pole coil is arranged on the rear half of each odd tooth, and the tooth with the shaded coil on the rear half of the tooth is a reverse shaded pole. A shaded pole coil is arranged on the front half of each even-numbered tooth, and the tooth with the shaded pole coil arranged on the front half of the tooth is a forward shaded pole. The first tooth behind the reverse base is the forward base. The shaded pole coil and the arrangement of the shaded pole coil on the rear half tooth portion or the front half tooth portion are mature technologies.

The armature winding is a wire structure that passes through a single-phase alternating current to form a changing yoke magnetic flux and finally forms a rotating stator magnetic field, including 4*X-phase armature windings. The armature winding of each phase uses electric wires to wind around the yoke of the stator core to form a yoke winding, which is arranged along the yoke section. Set 4*X segments of yoke windings in order of phase sequence numbers, all of which are positive yoke windings. The wires and the number of turns of each segment of the yoke winding are the same. The positive and negative of the yoke winding are determined according to the yoke orientation method. The yoke orientation method is as follows: select a section of the stator core parallel to the rotor movement direction, and set the clockwise direction in the section view as the positive direction of the yoke magnetic flux, that is, when When the N pole direction of the yoke magnetic flux is clockwise, the yoke magnetic flux in this section is positive yoke magnetic flux, and when the N pole direction of the yoke magnetic flux is counterclockwise, the yoke magnetic flux in this section is negative yoke magnetic flux . According to the right-hand spiral rule, the yoke winding that forms a positive yoke magnetic flux when a positive current flows is a positive yoke winding, and 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, and the yoke winding that forms a negative yoke magnetic flux when a negative current flows is a positive yoke winding. When single-phase alternating current flows through the yoke windings of each segment, a yoke magnetic flux is formed in the surrounded yoke, and the yoke magnetic flux in each segment of the yoke has only one direction, or the magnetic 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. Concentrate on the nearest adjacent teeth to form a tooth flux. Adjacent yoke fluxes in the same direction are connected in series to form a set of yoke fluxes, and the most adjacent teeth of a set of yoke flux heads (one end of the N pole) form positive tooth fluxes. The tooth most adjacent to the tail of the magnetic flux (one end of the S pole) forms a negative tooth magnetic flux. The adjacent heads of the two sets of yoke magnetic flux gather at the nearest teeth to form positive tooth flux, and the adjacent tails of the two sets of yoke magnetic flux gather at the nearest teeth to form negative tooth magnetic flux . As the phase of the single-phase alternating current changes, the changing tooth flux passes through the shaded poles to form a rotating stator magnetic field. The N pole is the north pole, the S pole is the south pole, * is the multiplication sign, / is the division sign, + is the positive sign, and - is the negative sign. The tooth flux directed from the yoke to the rotor is a positive tooth flux, and the tooth flux directed from the rotor to the yoke is a negative tooth flux. The phase sequence numbers of the armature windings are also the phase sequence numbers of the yoke windings, usually expressed in lowercase English letters.

The armature winding is connected to the single-phase alternating current according to the positive and negative method of the shaded pole. The control circuit controls the single-phase alternating current fed into each yoke winding. There are two types of alternating current, namely +A phase alternating current and -A phase alternating current, and the phase of the -A phase alternating current is 180 degrees ahead of the phase of the +A phase alternating current. The control mechanism controls the windings of each yoke to feed into one of the two kinds of alternating currents respectively. Let R be the number of pole pairs of the stator, let T be the number of yoke winding segments contained in each branch, R be a natural number, and T be an even natural number, so that 2*T*R=4*X. Divide the 4*X section yoke windings in front of the reverse base into R groups in turn, each group has 2*T section yoke windings, each group is divided into 2 pieces, and each piece is numbered as single and double alternately clockwise No. and double No., each with a T-section yoke winding. The shaded pole inverse method is: the single-number yoke winding is connected to the +A phase AC, and the double-number yoke winding is connected to the -A phase AC, and the yoke magnetic flux formed by each two yoke windings gathers to form a pair of pole pairs Number of teeth magnetic flux, along with the phase change of single-phase alternating current, forms a reverse rotating stator magnetic field with the number of pole pairs R. It can be inferred that: the single-numbered yoke part winding is connected to the -A phase alternating current, and the double-numbered yoke part winding is connected to the +A-phase alternating current, which also forms a reverse rotating stator magnetic field with the number of pole pairs R. Divide the 4*X section yoke windings in front of the positive base into R groups in turn, each group has 2*T section yoke windings, each group is divided into 2 pieces, and each piece is numbered as single and double alternately clockwise No. and double No., each with a T-section yoke winding. The shaded pole positive method is: the winding of the single yoke part is connected to the +A phase AC, the winding of the double yoke part is connected to the -A phase AC current, and the magnetic flux of the yoke part formed by each two yoke part windings gathers to form a pair of pole pairs The magnetic flux of the teeth, along with the phase change of the single-phase alternating current, forms a forward rotating stator magnetic field with the number of pole pairs R. It can be inferred that: the single-numbered yoke winding is connected to the -A phase alternating current, and the double-numbered yoke winding is connected to the +A phase alternating current, which also forms a forward rotating stator magnetic field with the number of pole pairs R. It is a mature technology that the control mechanism controls each yoke winding to feed one of the two alternating currents respectively. To form the rotating stator magnetic field, the mature technical solution is to pass through the tooth windings of one of the two kinds of alternating current to form the tooth magnetic flux, and to form the rotating stator magnetic field through the shaded poles; the technical solution proposed by the present invention is to pass through the two kinds of alternating current One of the yoke windings forms a yoke magnetic flux, the yoke magnetic flux gathers to form a tooth magnetic flux, and passes through the shaded poles to form a rotating stator magnetic field. When the value range of T is one value, there is a power-on mode for the reverse method of the shade pole and the positive method of the shade pole, and the rotating stator magnetic field has a number of pole pairs and a speed; when the value range of T is multiple values, the shade pole The reverse pole method and the shaded pole positive method each have a variety of energization methods, and the magnetic fluxes of each yoke are formed in various combinations, which are gathered to form a variety of positions and quantities of tooth magnetic fluxes. After passing through different shaded poles, there are various magnetic fields of the rotating stator. There are multiple speeds for the number of pole pairs; the value of each T corresponds to each of the energization modes of the shaded pole reverse method and the shaded pole positive method, and each of the pole logarithms and speeds of the rotating stator magnetic field corresponding to the reverse and forward rotation. When X is determined, the number of yoke parts of the stator core and the number of windings of the yoke part are determined. Under the condition that the frequency of the single-phase alternating current is constant, the value of T is switched, and the energization method of the positive and negative method of the shade pole is switched, and the number of stator pole pairs is switched. , the rotating stator magnetic field speed of reverse rotation and forward rotation is switched. The rotating stator magnetic field at different speeds drives the rotor to start and run. For example, when X=1, the value range of T is 2, and the rotating stator magnetic field of reverse rotation and forward rotation has a speed; when X=2, the value range of T is 2 or 4, and the rotating stator magnetic field of reverse rotation and forward rotation Each has two speeds; when X=3, the value range of T is 2 or 6, and the rotating stator magnetic field of reverse and forward rotation has two speeds; when X=4, the value range of T is 2, 4 or 8. The rotating stator magnetic field of reverse rotation and forward rotation has three speeds; when X=6, the value range of T is 2, 4, 6 or 12, and the rotating stator magnetic field of reverse rotation and forward rotation has four speeds; when X When =8, the value range of T is 2, 4, 8 or 16, and the rotating stator magnetic field of reverse rotation and forward rotation has four speeds; when X=12, the value range of T is 2, 4, 6, 8, 12 or 24, the rotating stator magnetic field of reverse rotation and forward rotation has six speeds; when X=16, the value range of T is 2, 4, 8, 16 or 32, and the rotating stator magnetic field of reverse rotation and forward rotation has five speeds each kind of speed. When X is other natural numbers, the value range of T, the energization method of the positive and negative shaded pole method, the number of stator pole pairs, the speed of the rotating stator magnetic field in reverse and forward rotation can be deduced in the same way.

In the setting mode of each yoke winding, any section of yoke winding is changed from the original positive yoke winding to the current negative yoke winding. The original alternating current corresponding to the existing negative yoke portion winding is fed into a new alternating current which is staggered with the original single-phase alternating current by 180 degrees of electric phase, and then the present invention remains unchanged.

The present invention can obviously give up the partial energization mode of the positive and negative method of the shaded pole, and become a motor with less magnetic field speed of the rotating stator.

The rotor includes a cage-shaped induction rotor and a hysteresis rotor, both of which are mature technologies, and one of them is used as the rotor. The cage induction rotor consists of a rotor core, a cage coil and a rotor shaft. A hysteresis rotor consists of a hysteresis body and a rotor shaft. The cage coil is composed of a front ring, a rear ring and cage guide bars; the specific number of cage guide bars is optimized according to actual needs. The number of rotor pole pairs for cage-shaped induction rotors and hysteresis rotors is automatically equal to the number of stator pole pairs.

The control mechanism is composed of a control circuit and a single-phase power supply, and the control mechanism controls each yoke winding to be connected to a single-phase alternating current. Hard switching or soft switching can be used in the control circuit, and single-phase AC power or single-phase inverter power can be used for single-phase power supply. The supporting components, casing and control mechanism adopt mature technology.

For the control mechanism, the control circuit diagram of the eight-phase yoke winding shade pole positive and negative motor is shown in Figure 6. In Figure 6, the control circuit controls each yoke winding to be connected to the single-phase power supply, and the control circuit allows each yoke winding to operate in +A phase AC Select one of the two currents, , -A phase alternating current. Taking the control circuit of the +b yoke winding as an example, the two switches arranged side by side with a dotted line at the top to indicate that they have a linkage relationship with each other are double-connected switches. The double-connected switch is closed to the left to indicate that the +A phase is connected to the alternating current, and the double-connected switch is turned to the right. Closing means that -A phase alternating current is connected. Because the motor adopts the positive and negative method of the shaded pole, the +a yoke winding is always connected to the A-phase alternating current, and its circuit has no switch, and the +g yoke winding is always connected to the -A phase alternating current, and its circuit has no switch. The control circuit shown in FIG. 6 is only one of the mature technical solutions, and the control circuit can also adopt other mature technical solutions. When the eight-phase yoke winding shaded pole positive and negative motor adopts the shaded pole positive and negative method, the rotating stator magnetic field has two speeds, which can be used for the rotor to start and run; the motor has very rich functions.

The stator, the cage-shaped induction rotor, the supporting part, the casing and the control mechanism form a positive and negative induction motor with yoke winding and shaded poles. The stator, the hysteresis rotor, the supporting parts, the casing and the control mechanism form the positive and negative hysteresis motor with yoke winding cover poles, which is a variable speed hysteresis motor with variable pole pairs of the stator.

In the traditional single-phase AC shaded pole motor, the armature windings of each phase are wound around the teeth of the stator core to form tooth windings, and each tooth winding forms the magnetic flux of the teeth and finally forms the magnetic field of the rotating stator. There is only one pole pair number. Rotating speed. Yoke winding shaded pole reversing motor, the armature windings of each phase are wound around the yoke of the stator core to form a yoke winding, which enriches the stator structure; each yoke winding forms a yoke magnetic flux that gathers to form a tooth magnetic flux and finally forms a rotating stator The magnetic field has innovated the formation mechanism of the stator magnetic field; using the positive and negative method of the shaded pole, under the condition that the frequency of the single-phase alternating current is unchanged, the rotating stator magnetic field has the function of forward rotation and reverse rotation by switching the power supply method of the positive and negative method of the shaded pole A variety of speeds increase the motor function. The benefit of the yoke winding shaded pole reversing motor is that the efficiency of forming the magnetic field of the rotating stator is higher due to the magnetic flux gathering effect of the tooth part due to the magnetic flux accumulation of the yoke part. Since there are only yoke windings in the same direction on the same section of the yoke, and there are no yoke windings in different directions, there is no mutual interference and the efficiency is high. Since only half of the part of the yoke winding parallel to the motor shaft is arranged in the slot, the depth of the slot needs to be shallow, the height of the teeth is relatively short, and the self-weight is light. The invention innovates the structure of the motor, innovates the formation mechanism of the stator magnetic field, and increases the function of the motor. There wasn't an identical motor before this one.

The stator core, high magnetic flux material, yoke, tooth, pole, shaded pole, shaded pole coil, tooth height, slot depth, magnetic pole, aggregation, stator magnetic field, number of pole pairs, frequency and speed are all for mature technology. The wires, windings, windings, armature windings, tooth windings, connections and electrical phases are all well-established technologies.

Description of drawings

Fig. 1 is a sectional view of a four-phase yoke winding shaded pole positive and negative motor, which is also one of the schematic diagrams of Embodiment 1. In the figure, 1 is the stator core yoke, 2 is the yoke winding, there are four sections (a, b, c and d) in total, 3 is the shaded pole coil, 4 is the forward shaded pole, 5 is the reverse shaded pole, 6 is the rotor iron core, and 7 is the cage guide bar.

Fig. 2 is a sectional view of an eight-phase yoke winding shaded pole positive and negative motor, which is also one of the schematic diagrams of the second embodiment. In the figure, 1 is the stator core yoke, 2 is the yoke winding, there are eight sections (a, b, c, d, e, f, g and h) in total, 3 is the shaded pole coil, and 4 is the forward shaded pole , 5 is the reverse shaded pole, 6 is the rotor core, and 7 is the cage guide bar.

Fig. 3 is a sectional view of a multi-speed shaded pole motor with 12-phase yoke windings, which is also one of the schematic diagrams of the third embodiment. In the figure, 1 is the stator core yoke, 2 is the yoke winding, there are twelve sections (a, b, c, d, e, f, g, h, i, j, k and l) in total, and 3 is the cover pole coil, 4 is the forward shaded pole, 5 is the reverse shaded pole, 6 is the rotor core, and 7 is the cage guide bar.

Fig. 4 is a sectional view of a sixteen-phase yoke winding multi-speed shaded pole motor, which is also one of the schematic diagrams of the fourth embodiment. In the figure, 1 is the stator core yoke, 2 is the yoke winding, there are (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o and p) There are 16 sections in total, 3 is the shaded pole coil, 4 is the forward shaded pole, 5 is the reverse shaded pole, 6 is the rotor core, and 7 is the cage guide bar.

Fig. 5 is a schematic diagram of the control circuit of the four-phase yoke winding shaded pole forward and reverse motor, which is also the second schematic diagram of the first embodiment.

Fig. 6 is a schematic diagram of the control circuit of the eight-phase yoke winding shaded pole forward and reverse motor, which is also the second schematic diagram of the second embodiment.

Fig. 7 is a schematic diagram of the control circuit of the twelve-phase yoke winding shaded pole forward and reverse motor, which is also the second schematic diagram of the third embodiment.

Fig. 8 is a schematic diagram of a sixteen-phase yoke winding shaded pole positive and negative motor control circuit diagram, which is also the second schematic diagram of embodiment 4.

In each figure, the curly brackets indicate the phase sequence number of each yoke winding. The phase sequence 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 front end ring and the rear end ring of the cage coil are not cut, and the number of cage guide bars is set according to the actual number. Supporting parts, casing and control mechanism etc. are not drawn. Each component only shows the mutual relationship, and does not reflect the actual size.

Detailed ways

Embodiment 1: A four-phase yoke winding shaded pole reversing motor is composed of a stator, a cage-shaped induction rotor, supporting components, a casing, and a control mechanism.

The stator consists of a stator core and an armature winding. 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 four teeth are evenly 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 four segments of the yoke are connected to the four teeth to form the stator core. The clockwise direction of the stator core is the front, and the counterclockwise direction is the rear. Select any tooth as the reverse base, and start from the reverse base to the front and sequentially number each tooth with odd numbers and double numbers alternately. A shaded pole coil is arranged on the rear half of each odd tooth, and the tooth with the shaded coil on the rear half of the tooth is a reverse shaded pole. A shaded pole coil is arranged on the front half of each even-numbered tooth, and the tooth with the shaded pole coil arranged on the front half of the tooth is a forward shaded pole. The first tooth behind the reverse base is the forward base.

The armature winding has four phases, and each phase of the armature winding uses electric wires to wind around the yoke of the stator core to form a section of yoke winding, which is arranged along the yoke. The positive and negative of each section of yoke winding is determined according to the yoke orientation method. The arrangement method of each yoke winding: on the 4-stage yoke in front of the reverse base, set 4-stage yoke windings in the order of phase sequence numbers, which are the positive yoke windings of the first phase (+a), and the positive yoke windings of the second phase Winding (+b), 3rd phase positive yoke winding (+c) and 4th phase positive yoke winding (+d). See Figure 1.

The armature winding is connected to the single-phase alternating current according to the positive and negative method of the shaded pole. Let R be the number of pole pairs of the stator, let T be the number of yoke winding segments contained in each branch, R be a natural number, and T be an even natural number, so that 2*T*R=4*X. Divide the 4*X section yoke windings in front of the reverse base into R groups in turn, each group has 2*T section yoke windings, each group is divided into 2 pieces, and each piece is numbered as single and double alternately clockwise No. and double No., each with a T-section yoke winding. The shaded pole inverse method is: the single-number yoke winding is connected to the +A phase AC, and the double-number yoke winding is connected to the -A phase AC, and the yoke magnetic flux formed by each two yoke windings gathers to form a pair of pole pairs Number of teeth magnetic flux, along with the phase change of single-phase alternating current, forms a reverse rotating stator magnetic field with the number of pole pairs R. Divide the 4*X section yoke windings in front of the positive base into R groups in turn, each group has 2*T section yoke windings, each group is divided into 2 pieces, and each piece is numbered as single and double alternately clockwise No. and double No., each with a T-section yoke winding. The shaded pole positive method is: the winding of the single yoke part is connected to the +A phase AC, the winding of the double yoke part is connected to the -A phase AC current, and the magnetic flux of the yoke part formed by each two yoke part windings gathers to form a pair of pole pairs The magnetic flux of the teeth, along with the phase change of the single-phase alternating current, forms a forward rotating stator magnetic field with the number of pole pairs R. When the value range of T is one value, the positive and negative method of the shaded pole has a power supply method, and the rotating stator magnetic field of the reverse and forward rotation has a speed respectively. When the value range of T is multiple values, the positive and negative method of the shaded pole There are many ways of energizing, and the magnetic fluxes of each yoke are formed in various combinations, which are gathered to form a variety of positions and numbers of tooth magnetic fluxes. After passing through different shaded poles, the magnetic fields of the reverse and forward rotations of the stator have various speeds. ; The value of each T corresponds to each of the energization modes of the shaded pole reverse method and the shaded pole positive method, and a pole logarithm and a speed of the rotating stator magnetic field corresponding to the reverse and forward rotation. When X is determined, the number of yoke parts of the stator core and the number of windings of the yoke part are determined. Under the condition that the frequency of the single-phase alternating current is constant, the value of T is switched, and the energization method of the positive and negative method of the shade pole is switched, and the number of stator pole pairs is switched. , the rotating stator magnetic field speed of reverse rotation and forward rotation is switched. The rotating stator magnetic field at different speeds drives the rotor to start and run.

When R=1, Q=2, starting from the reverse base, divide the front 4 sections of yoke windings into 1 group, each group has 4 sections of yoke windings, each group is divided into 2 branches, and they are compiled in a clockwise order For odd numbers and even numbers, each has 2 sections of yoke windings; the first way of energizing the shade pole reverse method is: when +a yoke winding and +b yoke winding are fed with +A phase AC, +c yoke winding The +d yoke winding is connected to -A phase alternating current, and as the phase of the single-phase alternating current changes, a reverse rotating stator magnetic field with a pole pair number of 1 is formed. This rotating stator magnetic field can drive the rotor to start and run counterclockwise; the rated speed of the rotor with stable operation is close to the speed of the rotating stator magnetic field.

When R=1, Q=2, starting from the positive base, divide the front 4 sections of yoke windings into 1 group, each group has 4 sections of yoke windings, each group is divided into 2 pieces, and they are compiled in a clockwise order For odd numbers and even numbers, each has 2 sections of yoke windings; the first power-on method of the shaded pole positive method is: when +a yoke winding and +d yoke winding are connected to +A phase alternating current, +c yoke winding and +c yoke winding The +b yoke winding is fed with -A phase alternating current, and as the phase of the single-phase alternating current changes, a forward rotating stator magnetic field with a pole pair number of 1 is formed. This rotating stator magnetic field can drive the rotor to start and run clockwise; the rated speed of the rotor with stable operation is close to the speed of the rotating stator magnetic field.

The electric motor of this embodiment is a single-speed reverse and forward-rotating motor, and it is obviously possible to abandon the partial energization mode of the positive-reverse method of the shaded pole and become a single-phase rotating motor.

The rotor adopts a cage-shaped induction rotor, which is composed of a rotor core, a cage-shaped coil and a rotor shaft. The cage-shaped coil is composed of a front ring, a rear-end ring and a cage guide bar. The number of rotor pole pairs is automatically equal to the number of stator pole pairs. The control mechanism is composed of a control circuit and a single-phase power supply. The control circuit adopts a hard switch, and the power supply adopts a single-phase AC power supply. The cage-shaped induction rotor, supporting parts, casing and control mechanism adopt mature technology.

Refer to 5 for the control circuit diagram of this embodiment. In FIG. 5, the control circuit controls each yoke winding to be connected to the single-phase power supply. One of the two currents of alternating current is selected. In the circuit, the +a yoke winding is always connected to the +A phase alternating current, and the +c yoke winding is always connected to the -A phase alternating current. On the left side of the circuit, the dotted line indicates that the two switches that have a linkage relationship with each other are double switches. The double switch is closed downwards, which means that the +d yoke winding is connected to +A phase alternating current, and the +b yoke winding is connected to -A. Phase alternating current, the double switch is closed upwards, which means that the +b yoke winding is connected to the +A phase alternating current, and the +d yoke winding is connected to the -A phase alternating current. The function of the motor is richer than that of the traditional single-phase AC shaded pole motor.

Embodiment 2: An eight-phase yoke winding shaded pole reversing motor is composed of a stator, a cage-shaped induction rotor, a supporting component, a casing, and a control mechanism.

The stator consists of a stator core and an armature winding. 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 eight teeth are evenly 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 eight-segment yoke connects the eight teeth to form the stator core. The clockwise direction of the stator core is the front, and the counterclockwise direction is the rear. Select any tooth as the reverse base, and number each tooth in odd and even numbers alternately from the reverse base to the front. A shaded pole coil is arranged on the rear half of each odd tooth, and the tooth with the shaded coil on the rear half of the tooth is a reverse shaded pole. A shaded pole coil is arranged on the front half of each even-numbered tooth, and the tooth with the shaded pole coil arranged on the front half of the tooth is a forward shaded pole. The first tooth behind the reverse base is the forward base.

The armature winding has eight phases, and each phase of the armature winding uses electric wires to wind around the yoke of the stator core to form a section of yoke winding, which is arranged along the yoke. The positive and negative of each section of yoke winding is determined according to the yoke orientation method. The setting method of each yoke winding: on the 8-segment yoke in front of the reverse base, 8-segment yoke windings are arranged in sequence according to the phase sequence number, which is the positive yoke winding (+a) of the first phase and the positive yoke winding of the second phase Winding (+b), 3rd phase positive yoke winding (+c), 4th phase positive yoke winding (+d), 5th phase positive yoke winding (+e) and 6th phase positive yoke winding ( +f), the 7th phase positive yoke winding (+g) and the 8th phase positive yoke winding (+h). See Figure 2.

When R=1, Q=4, starting from the reverse base, divide the front 8 sections of yoke windings into 1 group, each group has 8 sections of yoke windings, each group is divided into 2 pieces, and they are compiled clockwise For odd numbers and even numbers, each has 4 sections of yoke windings; the first way of energizing the shade pole reverse method is: when +a yoke windings, +b yoke windings, +c yoke windings and +d yoke windings The +A phase alternating current is passed through, the +e yoke winding, the +f yoke winding, the +g yoke winding and the +h yoke winding are connected to the -A phase alternating current, and the number of pole pairs is formed as the phase of the single-phase alternating current changes. A reversed rotating stator field of 1. When R=2, Q=2, starting from the reverse base, divide the front 8 sections of yoke windings into 2 groups, each group has 4 sections of yoke windings, each group is divided into 2 branches, and they are compiled clockwise Odd number and even number, each has 2 sections of yoke windings; shade pole reverse method The second power supply method is: when +a yoke winding, +b yoke winding, +e yoke winding and +f yoke winding The +A phase alternating current is passed through, the +c yoke winding, the +d yoke winding, the +g yoke winding and the +h yoke winding are connected to the -A phase alternating current, and the number of pole pairs is formed as the phase of the single-phase alternating current changes. Rotating stator magnetic field for 2 inversions. These two rotating stator magnetic fields can drive the rotor to start and run counterclockwise; after the operation is stable, the rated speed of the rotor is close to the speed of the rotating stator magnetic field.

When R=1, Q=4, starting from the positive base, divide the front 8 sections of yoke windings into 1 group, each group has 8 sections of yoke windings, each group is divided into 2 pieces, and they are compiled in a clockwise order For odd numbers and even numbers, each has 4 sections of yoke windings; the first way of energizing the shaded pole is: when the +a yoke winding, +b yoke winding, +c yoke winding and +h yoke winding are connected Input +A phase alternating current, +e yoke winding, +f yoke winding, +g yoke winding and +d yoke winding are connected to -A phase alternating current, with the phase change of single-phase alternating current, the number of pole pairs is 1 forward rotation of the rotating stator magnetic field. When R=2, Q=2, starting from the positive base, divide the 8 sections of yoke windings in front into 2 groups, each group has 4 sections of yoke windings, each group is divided into 2 pieces, and they are compiled in a clockwise order For odd numbers and even numbers, each branch has two sections of yoke windings; the second energization method of the shade pole positive method is: when the +a yoke winding, +h yoke winding, +e yoke winding and +d yoke winding are connected Input +A phase alternating current, +c yoke winding, +b yoke winding, +g yoke winding and +f yoke winding are connected to -A phase alternating current, with the phase change of single-phase alternating current, the number of pole pairs is 2 forward rotation of the rotating stator magnetic field. These two rotating stator magnetic fields can drive the rotor to start and run clockwise; after running stably, the rated speed of the rotor is close to the speed of the rotating stator magnetic field.

The motor of this embodiment is a two-speed motor, and it is obvious that the partial power supply mode of the positive and negative method of the shaded pole can be abandoned to become a single-speed motor.

The control circuit diagram of this embodiment is shown in Figure 6. In Figure 6, the control circuit controls each yoke winding to be connected to a single-phase power supply. Choose one of them. Taking the control circuit of the +b yoke winding as an example, the two switches arranged side by side with a dotted line at the top to indicate that they have a linkage relationship with each other are double-connected switches. The double-connected switch is closed to the left to indicate that the +A phase is connected to the alternating current, and the double-connected switch is turned to the right. Closing means that -A phase alternating current is connected. Because the motor adopts the positive and negative method of the shaded pole, the +a yoke winding is always connected to the +A phase AC, and its circuit has no switch, and the +g yoke winding is always connected to the -A phase AC, and its circuit has no switch. When the six double switches are respectively closed to the left, the six yoke windings controlled by them are connected to +A phase AC respectively; when the six double switches are respectively closed to the right, the six yoke windings controlled by them are The external windings are respectively fed with -A phase AC. The function of this motor is richer than traditional single-phase AC shaded pole motor, and also richer than any traditional two-speed motor.

Embodiment 3: A 12-phase yoke winding shaded pole reversing motor is composed of a stator, a cage-shaped induction rotor, supporting components, a casing, and a control mechanism.

The stator consists of a stator core and an armature winding. 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 clockwise direction of the stator core is the front, and the counterclockwise direction is the rear. Select any tooth as the reverse base, and start from the reverse base to the front and sequentially number each tooth with odd numbers and double numbers alternately. A shaded pole coil is arranged on the rear half of each odd tooth, and the tooth with the shaded coil on the rear half of the tooth is a reverse shaded pole. A shaded pole coil is arranged on the front half of each even-numbered tooth, and the tooth with the shaded pole coil arranged on the front half of the tooth is a forward shaded pole. The first tooth behind the reverse base is the forward base.

The armature winding has twelve phases, and each phase of the armature winding uses electric wires to wind around the yoke of the stator core to form a section of yoke winding, which is arranged along the yoke. The positive and negative of each section of yoke winding is determined according to the yoke orientation method. The arrangement method of each yoke winding: on the 12-segment yoke in front of the reverse base, 12-segment yoke windings are arranged in sequence according to the phase sequence number, which is the positive yoke winding (+a) of the first phase and the positive yoke winding of the second phase Winding (+b), 3rd phase positive yoke winding (+c), 4th phase positive yoke winding (+d), 5th phase positive yoke winding (+e) and 6th phase positive yoke winding ( +f), the 7th phase positive yoke winding (+g), the 8th phase positive yoke winding (+h), the 9th phase positive yoke winding (+i), the 10th phase positive yoke winding (+j ), the 11th phase positive yoke winding (+k) and the 12th phase positive yoke winding (+l). See Figure 3.

When R=1, Q=6, starting from the reverse base, divide the 12 sections of yoke windings in front into one group, each group has 12 sections of yoke windings, each group is divided into 2 pieces, and they are compiled in a clockwise order Odd number and even number, each has 6 sections of yoke windings; the first way of energizing the shade pole reverse method is: when +a yoke winding, +b yoke winding, +c yoke winding, +d yoke winding , +e yoke winding and +f yoke winding are connected to +A phase alternating current, +g yoke winding, +h yoke winding, +i yoke winding, +j yoke winding, +k yoke winding and + l The yoke winding is fed with -A phase alternating current, and with the phase change of the single-phase alternating current, a reverse rotating stator magnetic field with a pole pair number of 1 is formed. When R=3, Q=2, starting from the reverse base, divide the 12 sections of yoke windings in front into 3 groups, each group has 4 sections of yoke windings, each group is divided into 2 pieces, and they are compiled clockwise For odd numbers and even numbers, each branch has 2 sections of yoke windings; the shaded pole reverse method The second power supply method is: when +a yoke winding, +b yoke winding, +e yoke winding, +f yoke winding , +i yoke winding and +j yoke winding are connected to +A phase alternating current, +c yoke winding, +d yoke winding, +g yoke winding, +h yoke winding, +k yoke winding and + l The yoke winding is fed with -A phase alternating current, and with the phase change of the single-phase alternating current, a reverse rotating stator magnetic field with a pole pair number of 3 is formed. These two rotating stator magnetic fields can drive the rotor to start and run counterclockwise; after the operation is stable, the rated speed of the rotor is close to the speed of the rotating stator magnetic field.

When R=1, Q=6, starting from the positive base, divide the 12 sections of yoke windings in front into 1 group, each group has 12 sections of yoke windings, each group is divided into 2 pieces, and they are compiled in clockwise order For odd numbers and even numbers, each branch has 6 segments of yoke windings; the first method of energizing the shaded pole is: when +a yoke windings, +b yoke windings, +c yoke windings, +d yoke windings, +e yoke winding and +l yoke winding are connected to +A phase alternating current, +g yoke winding, +h yoke winding, +i yoke winding, +j yoke winding, +k yoke winding and +f The yoke winding is fed with -A phase alternating current, and as the phase of the single-phase alternating current changes, a forward rotating stator magnetic field with a pole pair number of 1 is formed. When R=3, Q=2, starting from the positive base, divide the 12 sections of yoke windings in front into 3 groups, each group has 4 sections of yoke windings, each group is divided into 2 pieces, and they are compiled clockwise Odd number and even number, each has 2 sections of yoke winding; the second power supply method of the shaded pole method is: when +a yoke winding, +l section winding, +e yoke section winding, +d yoke section winding, + The i yoke winding and the +h yoke winding are connected to the +A phase alternating current, the +c yoke winding, the +b yoke winding, the +g yoke winding, the +f yoke winding, the +k yoke winding and the +j yoke The external winding is fed with -A phase alternating current, and with the phase change of the single-phase alternating current, a forward rotating stator magnetic field with a number of pole pairs of 3 is formed. These two rotating stator magnetic fields can drive the rotor to start and run clockwise; after running stably, the rated speed of the rotor is close to the speed of the rotating stator magnetic field.

The control circuit diagram of this embodiment is shown in Figure 7. In Figure 7, the control circuit controls each yoke winding to be connected to a single-phase power supply. Choose one of them. Taking the control circuit of the +b yoke winding as an example, the two switches arranged side by side with a dotted line at the top to indicate that they have a linkage relationship with each other are double-connected switches. The double-connected switch is closed to the left to indicate that the +A phase is connected to the alternating current, and the double-connected switch is turned to the right. Closing means that -A phase alternating current is connected. Because the motor adopts the positive and negative method of the shaded pole, the +a yoke winding, +e yoke winding and +g yoke winding are always connected to the +A phase AC, and their circuits have no switches, and the +k yoke winding is always Pass -A phase alternating current, and its circuit has no switch. When the eight double switches are respectively closed to the left, the eight yoke windings controlled by them are connected to the +A phase AC respectively; when the eight double switches are respectively closed to the right, the eight yoke windings they respectively control The external windings are respectively fed with -A phase AC. The function of this motor is richer than that of traditional single-phase AC shaded pole motors, and also richer than any traditional two-speed motors.

Embodiment 4: A sixteen-phase yoke winding shaded pole reversing motor is composed of a stator, a cage-shaped induction rotor, supporting components, a casing, and a control mechanism.

The stator consists of a stator core and an armature winding. 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 sixteen teeth are evenly 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 sixteen segments of the yoke are connected to the sixteen teeth to form the stator core. The clockwise direction of the stator core is the front, and the counterclockwise direction is the rear. Select any tooth as the reverse base, and start from the reverse base to the front and sequentially number each tooth with odd numbers and double numbers alternately. A shaded pole coil is arranged on the rear half of each odd tooth, and the tooth with the shaded coil on the rear half of the tooth is a reverse shaded pole. A shaded pole coil is arranged on the front half of each even-numbered tooth, and the tooth with the shaded pole coil arranged on the front half of the tooth is a forward shaded pole. The first tooth behind the reverse base is the forward base.

The armature winding has sixteen phases, and each phase of the armature winding uses wires to wind around the yoke of the stator core to form a section of yoke winding, which is arranged along the yoke. The positive and negative of each section of yoke winding is determined according to the yoke orientation method. The setting method of each yoke winding: on the 16-segment yoke in front of the reverse base, 16-segment yoke windings are arranged in sequence according to the phase sequence number, which is the positive yoke winding (+a) of the first phase and the positive yoke winding of the second phase Winding (+b), 3rd phase positive yoke winding (+c), 4th phase positive yoke winding (+d), 5th phase positive yoke winding (+e) and 6th phase positive yoke winding ( +f), the 7th phase positive yoke winding (+g), the 8th phase positive yoke winding (+h), the 9th phase positive yoke winding (+i), the 10th phase positive yoke winding (+j ), the 11th phase positive yoke winding (+k) and the 12th phase positive yoke winding (+l), the 13th phase positive yoke winding (+m), the 14th phase positive yoke winding (+n), 15th phase positive yoke winding (+o) and 16th phase positive yoke winding (+p). See Figure 4.

The armature winding is connected to the single-phase alternating current according to the positive and negative method of the shaded pole. Let R be the number of pole pairs of the stator, let T be the number of yoke winding sections contained in each branch, R be a natural number, and T be an even natural number, so that 2*T*R=4*X. Divide the 4*X section yoke windings in front of the reverse base into R groups in turn, each group has 2*T section yoke windings, each group is divided into 2 pieces, and each piece is numbered as single and double alternately clockwise No. and double No., each with a T-section yoke winding. The shaded pole inverse method is: the single-number yoke winding is connected to the +A phase AC, and the double-number yoke winding is connected to the -A phase AC, and the yoke magnetic flux formed by each two yoke windings gathers to form a pair of pole pairs Number of teeth magnetic flux, along with the phase change of single-phase alternating current, forms a reverse rotating stator magnetic field with the number of pole pairs R. Divide the 4*X section yoke windings in front of the positive base into R groups in turn, each group has 2*T section yoke windings, each group is divided into 2 pieces, and each piece is numbered as single and double alternately clockwise No. and double No., each with a T-section yoke winding. The shaded pole positive method is: the winding of the single yoke part is connected to the +A phase AC, the winding of the double yoke part is connected to the -A phase AC current, and the magnetic flux of the yoke part formed by each two yoke part windings gathers to form a pair of pole pairs The magnetic flux of the teeth, along with the phase change of the single-phase alternating current, forms a forward rotating stator magnetic field with the number of pole pairs R. When the value range of T is one value, the positive and negative method of the shaded pole has a power supply method, and the rotating stator magnetic field of the reverse and forward rotation has a speed respectively. When the value range of T is multiple values, the positive and negative method of the shaded pole There are many ways of energizing, and the magnetic fluxes of each yoke are formed in various combinations, which are gathered to form a variety of positions and numbers of tooth magnetic fluxes. After passing through different shaded poles, the magnetic fields of the reverse and forward rotations of the stator have various speeds. ; The value of each T corresponds to each of the energization modes of the shaded pole reverse method and the shaded pole positive method, and a pole logarithm and a speed of the rotating stator magnetic field corresponding to the reverse and forward rotation. When X is determined, the number of yoke parts of the stator core and the number of windings of the yoke part are determined. Under the condition that the frequency of the single-phase alternating current is constant, the value of T is switched, and the energization method of the positive and negative method of the shade pole is switched, and the number of stator pole pairs is switched. , the rotating stator magnetic field speed of reverse rotation and forward rotation is switched. The rotating stator magnetic field at different speeds drives the rotor to start and run.

When R=1, Q=8, starting from the reverse base, divide the 16 sections of yoke windings in front into 1 group, each group has 16 sections of yoke windings, each group is divided into 2 branches, and they are compiled in a clockwise order Odd number and even number, each has 8 segments of yoke windings; the first power-on method of the shaded pole reverse method is: when +a yoke winding, +b yoke winding, +c yoke winding, +d yoke winding , +e yoke winding, +f yoke winding, +g yoke winding and +h yoke winding are connected to +A phase alternating current, +i yoke winding, +j yoke winding, +k yoke winding, + The l yoke winding, +m yoke winding, +n yoke winding, +o yoke winding and +p yoke winding are fed with -A phase alternating current, and the number of pole pairs is 1 as the phase of the single-phase alternating current changes. The reversal of the rotating stator magnetic field. When R=2, Q=4, starting from the reverse base, divide the 16 sections of yoke windings in front into 2 groups, each group has 8 sections of yoke windings, each group is divided into 2 pieces, and they are compiled clockwise For odd numbers and even numbers, each branch has 4 segments of yoke windings; the shade pole reverse method The second power supply method is: when +a yoke winding, +b yoke winding, +c yoke winding, +d yoke winding , +i yoke winding, +j yoke winding, +k yoke winding and +l yoke winding are connected to +A phase alternating current, +e yoke winding, +f yoke winding, +g yoke winding, + The h yoke winding, +m yoke winding, +n yoke winding, +o yoke winding and +p yoke winding are fed with -A phase alternating current, and the number of pole pairs is 2 as the phase of the single-phase alternating current changes. The reversal of the rotating stator magnetic field. When R=4, Q=2, starting from the reverse base, divide the 16 sections of yoke windings in front into 4 groups, each group has 4 sections of yoke windings, each group is divided into 2 pieces, and they are compiled in clockwise order Odd number and even number, each has 2 sections of yoke windings; the shaded pole reverse method The third power supply method is: when +a yoke winding, +b yoke winding, +e yoke winding, +f yoke winding , +i yoke winding, +j yoke winding, +m yoke winding and +n yoke winding are connected to +A phase alternating current, +c yoke winding, +d yoke winding, +g yoke winding, + The h yoke winding, +k yoke winding, +l yoke winding, +o yoke winding and +p yoke winding are fed with -A phase alternating current, and the number of pole pairs is 4 as the phase of the single-phase alternating current changes. The reversal of the rotating stator magnetic field. These three rotating stator magnetic fields can drive the rotor to start and run counterclockwise; after the operation is stable, the rated speed of the rotor is close to the speed of the rotating stator magnetic field.

When R=1, Q=8, starting from the positive base, divide the 16 sections of yoke windings in front into one group, each group has 16 sections of yoke windings, each group is divided into 2 branches, and they are compiled clockwise as Odd number and even number, each has 8 sections of yoke winding; the first power-on method of the shade pole method is: when +a yoke winding, +b yoke winding, +c yoke winding, +d yoke winding, +e yoke winding, +f yoke winding, +g yoke winding and +p yoke winding are connected to +A phase alternating current, +i yoke winding, +j yoke winding, +k yoke winding, +l The yoke windings, +m yoke windings, +n yoke windings, +o yoke windings and +h yoke windings are fed with -A phase alternating current, and as the phase of the single-phase alternating current changes, a pole pair number of 1 is formed. Forward rotating stator field. When R=2, Q=4, starting from the positive base, divide the 16 sections of yoke windings in front into 2 groups, each group has 8 sections of yoke windings, and each group is divided into 2 pieces, which are compiled clockwise For odd numbers and even numbers, each branch has 4 sections of yoke windings; the second way of energizing the shaded pole is: when +a yoke winding, +b yoke winding, +c yoke winding, +p yoke winding, +i yoke winding, +j yoke winding, +k yoke winding and +h yoke winding are connected to +A phase alternating current, +e yoke winding, +f yoke winding, +g yoke winding, +d The yoke windings, +m yoke windings, +n yoke windings, +o yoke windings and +l yoke windings are fed with -A phase alternating current, and as the phase of the single-phase alternating current changes, a pole pair number of 2 is formed. Forward rotating stator field. When R=4, Q=2, starting from the positive base, divide the 16 sections of yoke windings in front into 4 groups, each group has 4 sections of yoke windings, and each group is divided into 2 pieces, which are compiled in a clockwise order For odd numbers and even numbers, each branch has 2 sections of yoke windings; the third way of energizing the shaded pole is: when +a yoke windings, +p yoke windings, +e yoke windings, +d yoke windings, +i yoke winding, +h yoke winding, +m yoke winding and +l yoke winding are connected to +A phase alternating current, +c yoke winding, +b yoke winding, +g yoke winding, +f The yoke windings, +k yoke windings, +j yoke windings, +o yoke windings and +n yoke windings are fed with -A phase alternating current, and as the phase of the single-phase alternating current changes, a pole pair number of 4 is formed. Forward rotating stator field. These three rotating stator magnetic fields can drive the rotor to start and run clockwise; after running stably, the rated speed of the rotor is close to the speed of the rotating stator magnetic field.

The electric motor of this embodiment is a three-speed motor, and it is obvious that the partial energization mode of the positive and negative method of the shaded pole can be abandoned to become a two-speed motor or a single-speed motor.

The control circuit diagram of this embodiment is shown in Figure 8. In Figure 8, the control circuit controls each yoke winding to be connected to a single-phase power supply. Choose one of them. Taking the control circuit of the +b yoke winding as an example, the two switches arranged side by side with a dotted line at the top to indicate that they have a linkage relationship with each other are double-connected switches. The double-connected switch is closed to the left to indicate that +A phase AC is connected, and the double-connected switch is turned to the right. Closing means that -A phase alternating current is connected. Because the motor adopts the positive and negative method of the shaded pole, the +a yoke winding is always connected to the +A phase AC, and its circuit has no switch, and the +o yoke winding is always connected to the -A phase AC, and its circuit has no switch. When the fourteen double switches are respectively closed to the left, the fourteen sections of yoke windings controlled by them are connected to the +A phase AC respectively; The fourteen sections of yoke windings are connected to -A phase alternating current respectively. The function of this motor is richer than that of traditional single-phase AC shaded pole motors, and also richer than any traditional two-speed motors.

In the above embodiments, the stator’s pole arc, tooth width, tooth height (extremely high), yoke thickness, wire diameter, number of turns, detailed properties of the rotor, and detailed properties of the control mechanism are not shown. Optimal selection adopts mature technology.

The basic principles, main features and advantages of the present invention have been described above. Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. Without departing from the spirit and scope of the present invention, the changes and improvements of the present invention all fall into the claims. within the scope of the present invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims

Yoke winding shaded pole positive and negative motors, including yoke winding shaded pole positive and negative induction motors and yoke winding shaded pole positive and negative hysteresis motors, are composed of stators, rotors, supporting components, casings and control mechanisms, and are characterized in that: armature The winding adopts the yoke winding to be arranged along the yoke section, and the single-phase alternating current is fed in according to the positive and negative method of the shade pole. The yoke winding forms the yoke magnetic flux, and the yoke magnetic flux gathers to form the tooth magnetic flux. Different shaded poles form a rotating stator magnetic field with a variety of rotating speeds in forward and reverse directions;

The stator is composed of stator core and armature winding. The stator core adopts mature technology, including teeth and yoke; the stator core has 4*X teeth and 4*X yokes, and the stator core is clockwise is the front, and the counterclockwise direction is the rear. Select any tooth as the reverse base. From the reverse base to the front, each tooth is numbered alternately as odd number and double number. In each odd number Shaded pole coils are set on the rear half of the teeth, and the teeth with shaded coils on the rear half of the teeth are reverse shaded poles, which are set on the front half of each double-numbered tooth. Shaded pole coil, the tooth portion with the shaded pole coil set on the front half of the tooth is the forward shaded pole, and the first tooth behind the reverse base is the forward base;

The armature winding includes 4*X-phase armature windings, and each phase of the armature winding uses wires to wind around the yoke of the stator core to form a yoke winding that is arranged in sections along the yoke, and the positive and negative of each section of the yoke winding are in accordance with the yoke The orientation method is determined, and the setting method of each yoke winding is as follows: 4*X section yoke windings are set on the 4*X section yoke in front of the reverse base according to the phase sequence number, all of which are positive yoke windings;

The armature winding is connected to the single-phase alternating current according to the positive and negative method of the shaded pole. Let R be the number of pole pairs of the stator, let T be the number of yoke winding segments contained in each branch, R is a natural number, T is a double natural number, so that 2*T*R=4*X; put 4*X in front of the reverse base Segment yoke windings are divided into R groups in turn, each group has 2*T segment yoke windings, each group is divided into 2 pieces, each piece is numbered as odd number and double number alternately clockwise, and each piece has T Segment yoke windings; shaded pole inverse method is: the single-numbered yoke windings are connected to the +A phase AC, the double-numbered yoke windings are connected to the -A phase AC, and the magnetic flux of the yoke formed by each two yoke windings is concentrated Form a pair of tooth magnetic flux with pole logarithm, and form a reverse rotating stator magnetic field with pole logarithm R as the single-phase AC phase changes; divide the 4*X segment yoke windings in front of the positive base pole in turn It is group R, each group has 2*T section yoke windings, each group is divided into 2 pieces, and each piece is numbered as odd number and double number alternately clockwise, and each piece has T section yoke windings; cover The pole positive method is: the single-number yoke winding is connected to the +A phase AC, the double-number yoke winding is connected to the -A phase AC, and the yoke magnetic flux formed by each two yoke windings gathers to form a pair of pole pairs The magnetic flux of the teeth, along with the phase change of the single-phase alternating current, forms a forward rotating stator magnetic field with the number of pole pairs R. One pole pair number and one speed corresponding to the rotating stator magnetic field of reverse rotation and forward rotation; when X is determined, the number of yoke parts of the stator core and the number of windings of the yoke part are determined. Under the condition of constant single-phase AC frequency, the switching of T Value, switching the energization mode of the positive and negative method of the shaded pole, the number of stator pole pairs is switched, and the rotating stator magnetic field speed of reverse and forward rotation is switched, and the rotating stator magnetic field of different speeds drives the rotor to start and run;

The control mechanism is composed of a control circuit and a single-phase power supply; the supporting parts, the casing and the control mechanism adopt mature technology;

The rotor includes a cage-shaped induction rotor and a hysteresis rotor, both of which are mature technologies, and one of them is used as the rotor; the cage-shaped induction rotor is composed of a rotor core, a cage-shaped coil and a rotor shaft; the hysteresis rotor is composed of a hysteresis and a rotor shaft Composition: The rotor adopts a cage-shaped induction rotor, and the stator, cage-shaped induction rotor, supporting parts, casing and control mechanism form a positive and negative induction motor with yoke windings and shaded poles.
The yoke winding shaded pole reversing motor according to claim 1, the rotor is changed to a hysteresis rotor, and the stator, hysteresis rotor, supporting parts, casing and control mechanism form a yoke winding shaded pole reversing hysteresis motor.