CN102412681A - Switched reluctance motor with multidirectional magnetic field characteristic - Google Patents
Switched reluctance motor with multidirectional magnetic field characteristic Download PDFInfo
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- CN102412681A CN102412681A CN2011103021754A CN201110302175A CN102412681A CN 102412681 A CN102412681 A CN 102412681A CN 2011103021754 A CN2011103021754 A CN 2011103021754A CN 201110302175 A CN201110302175 A CN 201110302175A CN 102412681 A CN102412681 A CN 102412681A
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- stator
- side rotor
- magnetic pole
- center roller
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Abstract
The invention provides a switched reluctance motor with a multidirectional magnetic field characteristic. The switched reluctance motor comprises a stator, an intermediate rotor, a left side rotor, a right side rotor, a shaft, and a cable. The intermediate rotor is installed between the left side rotor and the right side rotor. The stator is installed in space formed by the intermediate rotor, the left side rotor and the right side rotor. The shaft passes through an axle hole of the stator, a through hole of the left side rotor and a through hole of the right side rotor, and is connected with a stator iron core. A leading-out terminal of a stator winding is connected with one end of the cable. The other end of the cable is led to external of the motor. The switched reluctance motor has high power density. Utilization rate of the stator winding is high. Output reluctance torque is large, and since full length of the stator winding is fully utilized to energy conversion, on the premise of a same output rotating speed, a motor with structure of the present invention has the advantages of light quality and small volume, and satisfies a requirement of a low speed dragging occasion well.
Description
Technical field
What the present invention relates to is the motor in a kind of electrical engineering field.
Background technology
Existing various switched reluctance machines can be divided into by its internal air gap DISTRIBUTION OF MAGNETIC FIELD characteristic: three types of radial magnetic field, axial magnetic field and transverse magnetic fields etc.In these three kinds of dissimilar switched reluctance machines, air-gap field only has single characteristic, has limited the further raising of power of motor density.
Summary of the invention
The object of the present invention is to provide through the structure of improving existing switched reluctance machines, the magnetic circuit that makes full use of motor internal and then the power density of raising switched reluctance machines and a kind of switched reluctance machines of overall performance with multi-direction magnetic signature.
The objective of the invention is to realize like this:
A kind of switched reluctance machines of the present invention with multi-direction magnetic signature; It is characterized in that: comprise stator, center roller, left side rotor, right side rotor, axle, cable; Described stator comprises stator core, magnetic pole of the stator, cannelure, stator winding; Has axis hole vertically in the middle of the stator core, magnetic pole of the stator is distributed on the circumference of stator core, and magnetic pole of the stator radially protrudes in its cylindrical sides along stator core; Have cannelure on the side of magnetic pole of the stator, lay stator winding in the cannelure; Described center roller comprises that center roller is unshakable in one's determination, the center roller magnetic pole, and the center roller iron core is the tube-shaped structure of hollow, and the center roller magnetic pole is distributed on the inner surface of rotor core, and center roller two sides unshakable in one's determination all offer equally distributed screw; Described left side rotor comprises left side rotor core, left side rotor magnetic pole; The left side rotor core is a disc-shaped structure; The left side rotor magnetic pole along the circumferential direction evenly distributes on the inner surface of left side rotor core; The number of left side rotor magnetic pole is identical with the number of center roller magnetic pole; The circle centre position of left side rotor core offers bearing chamber and through hole, and the edge of left side rotor core is along circumferentially offering equally distributed screw, and the number of the screw on the number of screw and the center roller iron core is identical and the position is corresponding vertically; Described right side rotor is identical with the left side rotor structure; Described center roller is installed in the middle of left side rotor and the right side rotor; Stator is installed in the space of center roller, left side rotor and right side rotor composition; Axle passes the axis hole of stator, the through hole of left side rotor, the through hole of right side rotor; Axle links to each other with stator core, and the leading-out terminal of stator winding is connected with an end of cable, and the other end of cable causes the outside of motor.
The present invention can also comprise:
1, described magnetic pole of the stator has four at least, and all magnetic pole of the stator circumferentially evenly distributing along stator core.
2, described magnetic pole of the stator axially protrudes in its two end faces along stator core.
3, described center roller magnetic pole has four at least, and the center roller magnetic pole radial is given prominence to and the edge circumferentially is evenly distributed on the inner surface of rotor core.
4, have cable-through hole on the described axle, cable causes the outside of motor through the cable-through hole on the axle.
Advantage of the present invention is:
(1) have the switched reluctance machines of characteristic of the present invention, the utilance of its stator winding is high.In its stator winding, do not have the end in the conventional switch reluctance motor winding; In the running of motor; The electric current of any part of stator winding of flowing through all is used to form air gap main field (comprising the transverse magnetic field between transverse magnetic field, stator and the right side rotor between radial magnetic field, stator and the left side rotor between stator and center roller), and whole stator winding has all been participated in the energy converting between mechanical process of motor.
(2) have the switched reluctance machines of characteristic of the present invention, its power density is high.In running, its total reluctance torque is made up of three components: the reluctance torque T1 between stator and center roller; Reluctance torque T2 between stator and left side rotor; Reluctance torque T3 between stator and right side rotor; Therefore compare with existing other motors, the switched reluctance machines with structure of the present invention can produce bigger torque, has higher power density.
(3) the switched reluctance machines structure of the present invention's proposition is suitable for design, the exploitation of low speed switch reluctance motor.Switched reluctance machines with structure of the present invention; Not only the reluctance torque of output is big; And owing to the whole length that made full use of stator winding are carried out power conversion; Therefore under the identical prerequisite of output speed, the quality of motor with structure of the present invention is lighter, volume is littler, and then satisfies the demand that low speed drags occasion better.
Description of drawings
Fig. 1 does not include the stator shaft orientation view of stator winding for the present invention;
The end view of Fig. 2 Fig. 1;
The vertical view of Fig. 3 Fig. 1;
The AA profile of Fig. 4 Fig. 1;
Fig. 5 includes the stator shaft orientation view of stator winding;
Fig. 6 center roller axial view;
Fig. 7 left side (right side) side rotor axial view;
The BB profile of Fig. 8 Fig. 7;
Fig. 9 general structure view of the present invention;
During Figure 10 phase stator winding electrifying, a certain moment motor internal radial magnetic field profile sketch map, dotted line is represented the path of radial distribution main flux, arrow shows direction, has only marked energising phase stator winding among the figure;
During Figure 11 phase stator winding electrifying; A certain moment motor internal partial lateral Distribution of Magnetic Field sketch map; Dotted line is represented the path of cross direction profiles main flux; Arrow shows direction, and this figure has only shown the partial structurtes of motor internal, comprises the part of a magnetic pole of the stator and a left side (or right) the side rotor magnetic pole of cross direction profiles main flux while interlinkage.
Embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～11, include several sections such as stator, center roller, left side rotor, right side rotor, axle on the structure of the present invention and form.Concrete structure is following:
(1) stator structure.Stator core 1 is a cylindrical structural; Have axis hole 2 in the middle of the stator core 1 vertically; A plurality of magnetic pole of the stator 3 circumferentially evenly distribute along stator core 1, and each magnetic pole of the stator 3 radially protrudes in its cylindrical sides along stator core 1, axially protrude in its two end faces along stator core 1 simultaneously; Have cannelure 4 on four sides of magnetic pole of the stator 3; Lay stator winding 5 in the cannelure 4, stator winding 5 is made up of polyphase windings, and choosing of the winding number of phases is identical with the ordinary tap reluctance motor.
(2) center roller structure.Center roller unshakable in one's determination 6 is the tube-shaped structure of hollow; On the inner surface of rotor core 6; Along circumferentially being evenly distributed with a plurality of radially outstanding center roller magnetic poles 7, the selection principle of the number of the number of center roller magnetic pole 7 and magnetic pole of the stator 3 meets the selection principle of ordinary tap reluctance motor stator and rotor number of magnet poles; Two sides of center roller unshakable in one's determination 6 all offer equally distributed screw 8.
(3) left side rotor and right side rotor structure.Identical on left side rotor and the right side rotor structure.A left side (right side) side rotor core 9 is a disc-shaped structure; On the inner surface (promptly towards stator one side) an of left side (right side) side rotor core 9, along the circumferential direction be evenly distributed with a plurality of left sides (right side) side rotor magnetic pole 10, the number an of left side (right side) side rotor magnetic pole 10 is identical with the number of center roller magnetic pole 7; The circle centre position an of left side (right side) side rotor core 9 offers bearing chamber 11 and through hole 12; The edge an of left side (right side) side rotor core 9 is along circumferentially offering a plurality of equally distributed screws 13, and the number of the screw 8 on the number of screw 13 and the center roller unshakable in one's determination 6 is identical, and position correspondence vertically.
(4) general structure.Axle 15 is fixedly connected with stator core 1 through the axis hole in the stator core 12; The two ends of axle 15 are equipped with two bearings 14; Two bearings 14 are installed in respectively in the bearing chamber 11 in left side and the right side rotor core 9 simultaneously; Utilize screw 8 and the screw 13 in left side and the right side rotor core 9 on center roller 6 two sides unshakable in one's determination, the use screw is fixed together center roller, left side rotor, right side rotor; The leading-out terminal of stator winding 5 is connected with an end of cable 16, and the cable-through hole 17 on the other end process axle 15 of cable 16 causes the outside of motor, is connected with the peripheral control unit of motor; The version of peripheral control unit, and the connected mode of each phase winding and controller in the stator winding 5 are all identical with the existing conventional switched reluctance machines.
Operation principle of the present invention:
Have the switched reluctance machines (is example with electronic operating mode) of characteristic of the present invention, be fixedly connected with external device (ED) through the two ends of axle 15.Its stator winding 5 is connected with peripheral control unit through cable 16.(or polyphase windings is connected with external power source simultaneously when a certain phase winding in the stator winding 5 is connected through peripheral control unit and external power source; The energising winding number of phases depends on the control strategy of motor); There is electric current to flow through in this phase winding; And then formation stator field; The main flux of stator field can be divided into three parts according to the characteristics of its magnetic flux path: first's stator field main flux is through center roller magnetic pole 7 and center roller 6 formation closed-loop paths unshakable in one's determination, and this a part of magnetic flux has the characteristic of radial magnetic field switched reluctance machines in the distribution of motor internal, because center roller is a salient-pole structure; Can know according to the magnetic resistance minimum principle, on center roller, can produce reluctance torque T
1Second portion stator field main flux is through left side rotor magnetic pole 10 formation closed-loop paths; This a part of magnetic flux has the characteristic of transverse magnetic field switched reluctance machines in the distribution of motor internal; In like manner can know, on the rotor of left side, can produce reluctance torque T according to the magnetic resistance minimum principle
2Third part stator field main flux is through right side rotor magnetic pole 10 formation closed-loop paths; This a part of magnetic flux has the characteristic of transverse magnetic field switched reluctance machines in the distribution of motor internal; In like manner can know, on the rotor of right side, can produce reluctance torque T according to the magnetic resistance minimum principle
3Reluctance torque T
1, T
2, T
3Direction is identical, and driven in common rotor (comprising center roller, left side rotor and right side rotor) rotates, and along with the rotation of rotor, the position between stator and rotor changes, reluctance torque T
1, T
2, T
3Size also follow variation, according to the position between stator and rotor relation, 5 commutations of peripheral control unit control stator winding make the locus of stator field constantly change in order along a certain fixed-direction, and then are implemented in reluctance torque T
1, T
2, T
3Effect under, rotor can constantly rotate, and realizes energy converting between mechanical.
With reference to existing switched reluctance machines method for designing, choose the number (number of right side and right side rotor magnetic pole 10 is equal to the number of center roller magnetic pole 7) of magnetic pole of the stator 3 and center roller magnetic pole 7, other physical dimensions can obtain through electromagnetism calculating.
Stator core 1 adopts ferromagnetic material to process.
Magnetic pole of the stator 3 adopts ferromagnetic material to process.
Stator core 1 is an overall structure with magnetic pole of the stator 3.
Stator winding 5 adopts the enamelled wire coiling, and the winding method of each phase winding is identical with existing radial magnetic field switched reluctance machines with the space placement location.
Center roller unshakable in one's determination 6 adopts ferromagnetic material to process.
Center roller magnetic pole 7 adopts ferromagnetic material to process.
Center roller unshakable in one's determination 6 is an overall structure with center roller magnetic pole 7.
A left side (right side) side rotor core 9 adopts non-magnet material to process.
A left side (right side) side rotor magnetic pole 10 adopts ferromagnetic material to process.
Modes such as a left side (right side) side rotor core 9 and the 10 employing welding of a left side (right side) side rotor magnetic pole are fixed together.
Two bearings 14 adopt ball bearing, also can adopt the bearing of other kinds as required.
The metal material that axle 15 adopts indexs such as mechanical strength, hardness to meet design requirement is processed.
Stator core 1 adopts modes such as tight fit, key are connected with axle between 15.
Adopt mode such as tight fit to be connected between two bearings 14 and the axle 15.
Adopt mode such as tight fit to be connected between bearing 14 and the bearing chamber 11 of a left side in (right side) side rotor core 9.
Axle 15 the two ends through hole 12 in left side and the right side rotor core 9 are respectively passed, and are used for being connected with external equipment.
Utilize screw to pass through screw 8 and the epitrochanterian screw 13 in left side on the center roller left surface, center roller and left side rotor are fixed together.
Utilize screw to pass through screw 8 and the epitrochanterian screw 13 in right side on the center roller left surface, center roller and right side rotor are fixed together.
Have the switched reluctance machines (is example with electronic operating mode) of characteristic of the present invention, be fixedly connected with external device (ED) through the two ends of axle 15.Its stator winding 5 is connected with peripheral control unit through cable 16.(or polyphase windings is connected with external power source simultaneously when a certain phase winding in the stator winding 5 is connected through peripheral control unit and external power source; The energising winding number of phases depends on the control strategy of motor); There is electric current to flow through in this phase winding; And then formation stator field; The main flux of stator field can be divided into three parts according to the characteristics of its magnetic flux path: first's stator field main flux is through center roller magnetic pole 7 and center roller 6 formation closed-loop paths unshakable in one's determination, and this a part of magnetic flux has the characteristic of radial magnetic field switched reluctance machines in the distribution of motor internal, because center roller is a salient-pole structure; Can know according to the magnetic resistance minimum principle, on center roller, can produce reluctance torque T1; Second portion stator field main flux is through left side rotor magnetic pole 10 formation closed-loop paths; This a part of magnetic flux has the characteristic of transverse magnetic field switched reluctance machines in the distribution of motor internal; In like manner can know, on the rotor of left side, can produce reluctance torque T2 according to the magnetic resistance minimum principle; Third part stator field main flux is through right side rotor magnetic pole 10 formation closed-loop paths; This a part of magnetic flux has the characteristic of transverse magnetic field switched reluctance machines in the distribution of motor internal; In like manner can know, on the rotor of right side, can produce reluctance torque T3 according to the magnetic resistance minimum principle.Reluctance torque T1, T2, T3 direction are identical, and driven in common rotor (comprising center roller, left side rotor and right side rotor) rotates, along with the rotation of rotor; Position between stator and rotor changes; The size of reluctance torque T1, T2, T3 is also followed variation, according to the relation of the position between stator and rotor, and 5 commutations of peripheral control unit control stator winding; The locus of stator field is constantly changed along a certain fixed-direction in order; And then be implemented under the effect of reluctance torque T1, T2, T3, rotor can constantly rotate, and realizes energy converting between mechanical.
The present invention can also have following form:
Stator core 1 and the independent respectively processing of magnetic pole of the stator 3 adopt mode such as welding to be fixed together again.
Center roller unshakable in one's determination 6 and the independent respectively processing of center roller magnetic pole 7 adopt mode such as welding to be fixed together again.
Claims (9)
1. switched reluctance machines with multi-direction magnetic signature; It is characterized in that: comprise stator, center roller, left side rotor, right side rotor, axle, cable; Described stator comprises stator core, magnetic pole of the stator, cannelure, stator winding; Has axis hole vertically in the middle of the stator core, magnetic pole of the stator is distributed on the circumference of stator core, and magnetic pole of the stator radially protrudes in its cylindrical sides along stator core; Have cannelure on the side of magnetic pole of the stator, lay stator winding in the cannelure; Described center roller comprises that center roller is unshakable in one's determination, the center roller magnetic pole, and the center roller iron core is the tube-shaped structure of hollow, and the center roller magnetic pole is distributed on the inner surface of rotor core, and center roller two sides unshakable in one's determination all offer equally distributed screw; Described left side rotor comprises left side rotor core, left side rotor magnetic pole; The left side rotor core is a disc-shaped structure; The left side rotor magnetic pole along the circumferential direction evenly distributes on the inner surface of left side rotor core; The number of left side rotor magnetic pole is identical with the number of center roller magnetic pole; The circle centre position of left side rotor core offers bearing chamber and through hole, and the edge of left side rotor core is along circumferentially offering equally distributed screw, and the number of the screw on the number of screw and the center roller iron core is identical and the position is corresponding vertically; Described right side rotor is identical with the left side rotor structure; Described center roller is installed in the middle of left side rotor and the right side rotor; Stator is installed in the space of center roller, left side rotor and right side rotor composition; Axle passes the axis hole of stator, the through hole of left side rotor, the through hole of right side rotor; Axle links to each other with stator core, and the leading-out terminal of stator winding is connected with an end of cable, and the other end of cable causes the outside of motor.
2. a kind of switched reluctance machines with multi-direction magnetic signature according to claim 1 is characterized in that: described magnetic pole of the stator has four at least, and all magnetic pole of the stator circumferentially evenly distributing along stator core.
3. a kind of switched reluctance machines with multi-direction magnetic signature according to claim 1 and 2 is characterized in that: described magnetic pole of the stator axially protrudes in its two end faces along stator core.
4. a kind of switched reluctance machines with multi-direction magnetic signature according to claim 1 and 2 is characterized in that: described center roller magnetic pole has four at least, and the center roller magnetic pole radial is given prominence to and the edge circumferentially is evenly distributed on the inner surface of rotor core.
5. a kind of switched reluctance machines with multi-direction magnetic signature according to claim 3 is characterized in that: described center roller magnetic pole has four at least, and the center roller magnetic pole radial is given prominence to and the edge circumferentially is evenly distributed on the inner surface of rotor core.
6. a kind of switched reluctance machines with multi-direction magnetic signature according to claim 1 and 2 is characterized in that: have cable-through hole on the described axle, cable causes the outside of motor through the cable-through hole on the axle.
7. a kind of switched reluctance machines with multi-direction magnetic signature according to claim 3 is characterized in that: have cable-through hole on the described axle, cable causes the outside of motor through the cable-through hole on the axle.
8. a kind of switched reluctance machines with multi-direction magnetic signature according to claim 4 is characterized in that: have cable-through hole on the described axle, cable causes the outside of motor through the cable-through hole on the axle.
9. a kind of switched reluctance machines with multi-direction magnetic signature according to claim 5 is characterized in that: have cable-through hole on the described axle, cable causes the outside of motor through the cable-through hole on the axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110302175 CN102412681B (en) | 2011-10-08 | 2011-10-08 | Switched reluctance motor with multidirectional magnetic field characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110302175 CN102412681B (en) | 2011-10-08 | 2011-10-08 | Switched reluctance motor with multidirectional magnetic field characteristic |
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| Publication Number | Publication Date |
|---|---|
| CN102412681A true CN102412681A (en) | 2012-04-11 |
| CN102412681B CN102412681B (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110302175 Expired - Fee Related CN102412681B (en) | 2011-10-08 | 2011-10-08 | Switched reluctance motor with multidirectional magnetic field characteristic |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545498A (en) * | 2012-01-14 | 2012-07-04 | 哈尔滨工程大学 | Switched reluctance motor with radial and transverse magnetic field characteristics |
| CN105680649A (en) * | 2016-03-25 | 2016-06-15 | 南京工业大学 | Doubly-salient motor with axial and radial magnetic flux |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458730A (en) * | 2003-05-21 | 2003-11-26 | 哈尔滨工业大学 | Axial exciting mixed reluctance motor |
| CN1645712A (en) * | 2005-01-07 | 2005-07-27 | 南京航空航天大学 | Magnetic resistant electric motor with double stator switch |
| US20080179982A1 (en) * | 2007-01-30 | 2008-07-31 | Arvinmeritor Technology, Llc | Transverse flux, switched reluctance, traction motor with bobbin wound coil, with integral liquid cooling loop |
| CN101483370A (en) * | 2008-01-11 | 2009-07-15 | 张世清 | Switched reluctance motor with double stators and double rotors |
| CN202309430U (en) * | 2011-10-08 | 2012-07-04 | 哈尔滨工程大学 | Switch magnetic resistance motor with multidirectional magnetic field characteristic |
-
2011
- 2011-10-08 CN CN 201110302175 patent/CN102412681B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458730A (en) * | 2003-05-21 | 2003-11-26 | 哈尔滨工业大学 | Axial exciting mixed reluctance motor |
| CN1645712A (en) * | 2005-01-07 | 2005-07-27 | 南京航空航天大学 | Magnetic resistant electric motor with double stator switch |
| US20080179982A1 (en) * | 2007-01-30 | 2008-07-31 | Arvinmeritor Technology, Llc | Transverse flux, switched reluctance, traction motor with bobbin wound coil, with integral liquid cooling loop |
| CN101483370A (en) * | 2008-01-11 | 2009-07-15 | 张世清 | Switched reluctance motor with double stators and double rotors |
| CN202309430U (en) * | 2011-10-08 | 2012-07-04 | 哈尔滨工程大学 | Switch magnetic resistance motor with multidirectional magnetic field characteristic |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545498A (en) * | 2012-01-14 | 2012-07-04 | 哈尔滨工程大学 | Switched reluctance motor with radial and transverse magnetic field characteristics |
| CN105680649A (en) * | 2016-03-25 | 2016-06-15 | 南京工业大学 | Doubly-salient motor with axial and radial magnetic flux |
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| Publication number | Publication date |
|---|---|
| CN102412681B (en) | 2013-07-31 |
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