CN102570648A - Electro-excitation flux reversing motor - Google Patents
Electro-excitation flux reversing motor Download PDFInfo
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- CN102570648A CN102570648A CN2012100318528A CN201210031852A CN102570648A CN 102570648 A CN102570648 A CN 102570648A CN 2012100318528 A CN2012100318528 A CN 2012100318528A CN 201210031852 A CN201210031852 A CN 201210031852A CN 102570648 A CN102570648 A CN 102570648A
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Abstract
The invention discloses an electro-excitation flux reversing motor, which comprises a stator and a rotor, wherein the stator and the rotor have salient pole structures; the stator is provided with stator teeth; concentrated armature windings are coiled on the stator teeth; an accommodating slot is formed on the top of each stator tooth, which faces an air gap; the concentrated armature windings are arranged in the accommodating slots; a permanent magnet and a winding are not arranged on the rotor. According to the electro-excitation flux reversing motor, a magnetic field is easy to adjust; the electro-excitation flux reversing motor has a compact structure, large torque and high power density.
Description
Technical field
The present invention relates to a kind of motor, particularly relate to a kind of electro-magnetic flux inverse type electric motor.
Background technology
Magnetic flux inverse type electric motor is a kind of brushless doubly salient permanent magnet motor.The stator of magnetic flux inverse type electric motor is similar with Stators for Switched Reluctance Motors; Winding in the coiling one phase subset on each stator salient poles; Different is that magnetic flux inverse type electric motor is pasted with two Fe-B rare-earth permanent magnets that magnetizing direction is opposite on each stator salient poles pole shoe surface, and the intersection of two Nd-Fe-B permanent magnetics is exactly the stator salient poles axial location.The rotor of magnetic flux inverse type electric motor and the structure of switch reluctance machine rotor are also basic identical.Rotation along with magnetic flux inverse type electric motor; The permanent magnetism magnetic linkage of winding institute interlinkage can change polarity and amplitude near linear change in every phase subset; Also having induced potential in the stator winding is the trapezoidal wave near flat-top, and magnetic flux inverse type electric motor can be realized four quadrant running.It has the two-fold advantage of switched reluctance machines and permanent-magnet brushless DC electric machine, and is simple in structure, is suitable for high-speed cruising, and control flexibly; Unit volume is exerted oneself greatly, and the NdFeB material utilance is high; Cost is low, the characteristics that self-induction and mutual inductance are little, thereby electrical time constant is little, fault-tolerant ability is high, has good application prospects.But existing magnetic flux inverse type electric motor mainly is a magneto, and difficulty is regulated in magnetic field, and there is the degaussing equivalent risk in permanent magnet, and therefore proposing rational electric excitation type magnetic flux reverse motor becomes current exigence.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, provide a kind of magnetic field adjustable, the electro-magnetic flux reverse motor.
For achieving the above object, the present invention adopts following technical scheme:
A kind of electro-magnetic flux reverse motor comprises stator and rotor, and stator and rotor are salient-pole structure; Stator has stator tooth; Be wound with concentrated armature winding on the stator tooth, the top surface of each stator tooth all has a storage tank to the position of air gap, is placed with the central excitation winding in this storage tank; No permanent magnet and winding on the rotor.
Further, said central excitation winding can be individual layer central excitation winding, and the number of promptly said individual layer central excitation winding is the half the of the stator number of teeth.At this moment, can only be distributed with a magnet exciting coil in each storage tank, each magnet exciting coil joins end to end successively, forms single-phase excitation winding.
Further, said central excitation winding can be double-deck central excitation winding, and the number of promptly said double-deck central excitation winding is identical with the stator number of teeth.At this moment, can be distributed with two coils in each storage tank, each magnet exciting coil joins end to end successively, forms single-phase excitation winding, and two magnet exciting coil senses of current in the same groove are consistent.
Further, said rotor can be the straight trough rotor, also can be skewed rotor.
Further, the angle of inclination that has of the skewed slot of said skewed rotor can make the electro-magnetic flux reverse motor obtain sinusoidal back-emf.
The invention has the beneficial effects as follows:
(1) places the central excitation winding through offering storage tank to the position of air gap at the top surface of stator tooth; Save the permanent magnet of traditional magneto magnetic flux reverse motor simultaneously; Structurally can keep magneto magnetic flux reverse motor compact conformation, simple, robustness is good, the advantage that is suitable for high-speed cruising, on performance, can keep the advantage that the permanent-magnetic electric machine torque is exerted oneself greatly, power density is high, efficient is high.
(2) storage tank is arranged at the stator tooth top, and the groove area with existing electro-magnetic motor structure compared is simple, excitation winding can not take armature winding can reduce a part of stator core on the contrary, and development easily.
(3) do not have permanent magnet on the rotor, compare, can not produce with permanent magnet irreversible demagnetization risk with existing permanent-magnetic electric machine.
(4) according to the different performance requirement, adopt straight trough rotor or skewed rotor, can make motor obtain trapezoidal wave back-emf or sinusoidal wave back-emf.
Description of drawings
Accompanying drawing 2 is the structural representations with electro-magnetic flux reverse motor of individual layer excitation winding.
The Reference numeral that relates among the figure is as follows:
1 stator core; 2 single-phase double-deck central excitation windings;
21 first central excitation coils; 22 second central excitation coils;
23 the 3rd central excitation coils; 24 the 4th central excitation coils;
25 the 5th central excitation coils; 26 the 6th central excitation coils;
Armature winding in 3 three-phase set; 311 first concentrate armature coil;
321 the 3rd concentrate armature coil; 322 the 4th concentrate armature coil;
331 the 5th concentrate armature coil; 332 the 6th concentrate armature coil;
4 rotor cores; 5 storage tanks.
Embodiment
Below in conjunction with accompanying drawing, be example with the motor of 6/4 utmost points, the embodiment of electro-magnetic flux reverse motor of the present invention is further described.
As shown in Figure 1, electro-magnetic flux reverse motor of the present invention comprises stator core 1 and rotor core 4, and rotor is positioned at the inside of stator, and (rotor also can be positioned at the outside of stator; Form outer-rotor structure); Stator and rotor are salient-pole structure, and wherein stator core 1 is made up of conducting magnet core, and stator has 6 teeth; And on each stator tooth, having little storage tank 5 to lay single-phase double-deck excitation winding 2, stator core 1 is provided with armature winding 3 in the three-phase set.
Each coil of armature winding 3 all is across on the stator tooth in the three-phase set, and a total N concentrated armature coil alternately distributes with the order of ABC three-phase successively, whenever is made up of N/3 coil, and each coil that belongs to homophase differs from 1080 °/N (mechanical angle) successively.Concentrate first of armature winding 3 to concentrate armature coil 311 and second to concentrate armature coil 312 radially relative (space differs 180 °); Each winding coil is placed in two side channels of each tooth in the stator 1, and above-mentioned two concentrating coil differential concatenations or parallel connection back composition A phase armature winding; Concentrate the 3rd of winding 3 to concentrate armature coil 321 and the 4th to concentrate armature coil 322 radially relative (space differs 180 °); Each winding coil is placed in two side channels of each tooth in the stator 1, and above-mentioned two concentrating coil differential concatenations or parallel connection back composition B phase armature winding; Concentrate the 5th of winding 3 to concentrate armature coil 331 and the 6th to concentrate armature coil 332 radially relative (space differs 180 °); Each winding coil is placed in two side channels of each tooth in the stator 1, and above-mentioned two concentrating coil differential concatenations or parallel connection back composition C phase armature winding.In other words; For 2 armature winding coils forming A, B, the every phase of C; First concentrating coil and second concentrating coil are at any rotor-position, and the equal magnetic linkage quantity of the linkage in its winding equidirectional is opposite, need differential concatenation to form A phase, B phase, C phase respectively.
Excitation winding 2 one has 6 concentrating coils, is placed in the groove that each stator tooth opens towards air gap, promptly in the storage tank 5, is double-deck discharging modes.Wherein first excitation winding pole coil 21, second excitation winding pole coil 22, the 3rd excitation winding pole coil 23, the 4th excitation winding pole coil 24, the 5th excitation winding pole coil 25, the 6th excitation winding pole coil 26 are concentrated winding; Be across in the storage tank 5 of adjacent two stator tooths; Be distributed with two coils in each storage tank 5; The energising polarity of two coils in the same storage tank 5 is consistent, and promptly the sense of current is consistent.6 coils are connected in series successively in proper order from beginning to end, form single-phase double-deck excitation winding.
Stator and field spider can adopt silicon steel plate stacking to form, and the storage tank of leaving on the stator tooth 5 is used to lay excitation winding 2.
The excitation winding of stator 6 grooves among Fig. 2/rotor 4 utmost point electro-magnetic flux reverse motors adopts single layer structure; With Fig. 1 difference be, excitation winding 2 one has 3 concentrating coils, is placed in the storage tank 5 that each stator tooth opens towards air gap; Be the monolayer alignment mode; Wherein first excitation winding pole coil 21, second excitation winding pole coil 22, the 3rd excitation winding pole coil 23 are concentrated winding, are across in the groove of adjacent two stator tooths, and being distributed with a coil in each groove is individual layer.Above-mentioned 3 coil meanings order head and the tail are connected in series, and form single-phase individual layer excitation winding, and all the other structures are similar with two layer winding, repeat no more.
The present invention includes stator and rotor; Stator and rotor are salient-pole structure; Stator has stator tooth, has concentrated armature winding and central excitation winding on the stator, and each stator tooth is at the top; The crown middle part all has a little storage tank towards the position of air gap in other words, and stator tooth is divided into two tooth portions.Be placed with the central excitation winding in the storage tank; No permanent magnet and winding on the rotor.If the stator number of teeth is N, then provide N storage tank to lay excitation winding altogether, excitation winding can adopt individual layer or double-decker.If the individual layer excitation winding, a total N/2 magnet exciting coil is distributed with a magnet exciting coil in each storage tank, and each magnet exciting coil joins end to end successively, forms single-phase excitation winding.If double-deck excitation winding, then a total N magnet exciting coil is distributed with two magnet exciting coils in each storage tank, and each magnet exciting coil joins end to end successively, forms single-phase excitation winding, and two magnet exciting coil senses of current in the same groove are consistent.
When excitation winding feeds exciting current; Two little tooth polarity on the same stator tooth are opposite; When rotor in rotary course with same stator tooth on two opposite polarity little teeth when aliging respectively; The direction of the magnetic flux linkage that excitation winding produced armature coil in each subset will be opposite, thereby produce the flux-reversal effect, and the magnetic linkage that causes every phase armature winding linkage is a bipolarity.
Electro-magnetic flux inverse type electric motor of the present invention can be inner rotor core or outer-rotor structure; Can also make form of straight lines; That is to say that electric magnetic flux inverse type electric motor of the present invention can be any one in inner rotor motor, external rotor electric machine, the linear electric motors.
Key of the present invention is: leave a groove area at stator tooth towards the crown middle part of air gap and settle single-phase excitation winding, saved the permanent magnet of traditional magneto magnetic flux reverse motor simultaneously, wherein place bilayer or single layer winding in each excitation winding groove.
The above is merely preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the present invention's design; Can also make some improvement and retouching, these improvement and retouching also should be regarded as in protection scope of the present invention.
Claims (9)
1. electro-magnetic flux reverse motor; Comprise stator and rotor; Stator and rotor are salient-pole structure, and stator has stator tooth, are wound with concentrated armature winding on the stator tooth; It is characterized in that: the top surface of each stator tooth all has a storage tank to the position of air gap, is placed with the central excitation winding in this storage tank; No permanent magnet and winding on the rotor.
2. electro-magnetic flux reverse motor according to claim 1 is characterized in that, said central excitation winding is an individual layer central excitation winding, and the number of said individual layer central excitation winding is the half the of the stator number of teeth.
3. electro-magnetic flux reverse motor according to claim 1 is characterized in that, is distributed with a magnet exciting coil in each storage tank, and each magnet exciting coil joins end to end successively, forms single-phase excitation winding.
4. electro-magnetic flux reverse motor according to claim 1 is characterized in that, said central excitation winding is double-deck central excitation winding, and the number of said double-deck central excitation winding is identical with the stator number of teeth.
5. electro-magnetic flux reverse motor according to claim 1; It is characterized in that be distributed with two coils in each storage tank, each magnet exciting coil joins end to end successively; Form single-phase excitation winding, and two magnet exciting coil senses of current in the same groove are consistent.
6. electro-magnetic flux reverse motor according to claim 1 is characterized in that, said rotor is the straight trough rotor.
7. electro-magnetic flux reverse motor according to claim 1 is characterized in that said rotor is a skewed rotor.
8. electro-magnetic flux reverse motor according to claim 7 is characterized in that, the angle of inclination that the skewed slot of said skewed rotor has can make the electro-magnetic flux reverse motor obtain sinusoidal back-emf.
9. according to right 1 described electro-magnetic flux inverse type electric motor, it is characterized in that said electro-magnetic flux inverse type electric motor is any one in inner rotor motor, external rotor electric machine, the linear electric motors.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100318528A CN102570648A (en) | 2012-02-14 | 2012-02-14 | Electro-excitation flux reversing motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100318528A CN102570648A (en) | 2012-02-14 | 2012-02-14 | Electro-excitation flux reversing motor |
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| CN102570648A true CN102570648A (en) | 2012-07-11 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259464A (en) * | 2013-05-10 | 2013-08-21 | 南京邮电大学 | Switch reluctance motor without bearings |
| CN103259383A (en) * | 2013-05-10 | 2013-08-21 | 江苏大学 | Fully superconducting linear motor of single low-temperature retainer |
| CN104242494A (en) * | 2014-09-15 | 2014-12-24 | 杨猛 | Energy-saving motor capable of eliminating resistance of rotor tooth grooves |
| CN104578491A (en) * | 2014-12-31 | 2015-04-29 | 南京航空航天大学 | Sinusoidal doubly-salient motor with trapezoid rotor tooth structure and design method of sinusoidal doubly-salient motor |
| CN104767336A (en) * | 2015-03-30 | 2015-07-08 | 北京工业大学 | Single-phase separately-excited magneto-resistive power generator |
| CN106100161A (en) * | 2016-08-26 | 2016-11-09 | 华中科技大学 | It is applicable to the stator of many electricity port electric motors and the motor containing this stator |
| CN106899159A (en) * | 2017-05-10 | 2017-06-27 | 山东理工大学 | A kind of pair of △ winding alternating current generator |
| CN112821842A (en) * | 2021-03-15 | 2021-05-18 | 合肥恒大江海泵业股份有限公司 | Fault-tolerant control method for open circuit fault of switched reluctance motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05336715A (en) * | 1991-02-21 | 1993-12-17 | Secoh Giken Inc | Reluctance type motor |
| CN101662172A (en) * | 2009-09-25 | 2010-03-03 | 东南大学 | Composite excitation type magnetic flux reverse motor |
| CN101789641A (en) * | 2010-03-09 | 2010-07-28 | 南京航空航天大学 | Electro-magnetic flux switching motor |
-
2012
- 2012-02-14 CN CN2012100318528A patent/CN102570648A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05336715A (en) * | 1991-02-21 | 1993-12-17 | Secoh Giken Inc | Reluctance type motor |
| CN101662172A (en) * | 2009-09-25 | 2010-03-03 | 东南大学 | Composite excitation type magnetic flux reverse motor |
| CN101789641A (en) * | 2010-03-09 | 2010-07-28 | 南京航空航天大学 | Electro-magnetic flux switching motor |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259464A (en) * | 2013-05-10 | 2013-08-21 | 南京邮电大学 | Switch reluctance motor without bearings |
| CN103259383A (en) * | 2013-05-10 | 2013-08-21 | 江苏大学 | Fully superconducting linear motor of single low-temperature retainer |
| CN103259383B (en) * | 2013-05-10 | 2015-12-30 | 江苏大学 | A kind of complete super linear electric motors of single cryostat |
| CN103259464B (en) * | 2013-05-10 | 2016-03-02 | 南京邮电大学 | A kind of bearing-free switch reluctance motor |
| CN104242494A (en) * | 2014-09-15 | 2014-12-24 | 杨猛 | Energy-saving motor capable of eliminating resistance of rotor tooth grooves |
| CN104578491A (en) * | 2014-12-31 | 2015-04-29 | 南京航空航天大学 | Sinusoidal doubly-salient motor with trapezoid rotor tooth structure and design method of sinusoidal doubly-salient motor |
| CN104767336A (en) * | 2015-03-30 | 2015-07-08 | 北京工业大学 | Single-phase separately-excited magneto-resistive power generator |
| CN106100161A (en) * | 2016-08-26 | 2016-11-09 | 华中科技大学 | It is applicable to the stator of many electricity port electric motors and the motor containing this stator |
| CN106899159A (en) * | 2017-05-10 | 2017-06-27 | 山东理工大学 | A kind of pair of △ winding alternating current generator |
| CN106899159B (en) * | 2017-05-10 | 2019-04-09 | 山东理工大学 | A kind of double △ winding alternating current generators |
| CN112821842A (en) * | 2021-03-15 | 2021-05-18 | 合肥恒大江海泵业股份有限公司 | Fault-tolerant control method for open circuit fault of switched reluctance motor |
| CN112821842B (en) * | 2021-03-15 | 2022-01-25 | 合肥恒大江海泵业股份有限公司 | Fault-tolerant control method for open circuit fault of switched reluctance motor |
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Application publication date: 20120711 |