CN102842413A - Reluctance type multi-polar resolver - Google Patents
Reluctance type multi-polar resolver Download PDFInfo
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- CN102842413A CN102842413A CN2012103579750A CN201210357975A CN102842413A CN 102842413 A CN102842413 A CN 102842413A CN 2012103579750 A CN2012103579750 A CN 2012103579750A CN 201210357975 A CN201210357975 A CN 201210357975A CN 102842413 A CN102842413 A CN 102842413A
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Abstract
The invention discloses a reluctance type multi-polar resolver, comprising a rotor and a stator and further comprising an exciting winding, a sinusoidal winding and a cosine winding which wind around the stator, wherein the inner circle surface of the stator is provided with teeth and slots at regular intervals; each tooth is uniformly wound with the series exciting windings at the first layer, the sinusoidal windings at the second layer wind above the exciting windings at the first layer, the cosine windings at the third layer wind above the sinusoidal windings at the second layer; moreover, half of the sinusoidal windings at the second layer interchange the layer with half of the cosine windings at the third layer. The reluctance type multi-polar resolver is simple in structure; each winding can be wound around the stator at once by a special winding machine; the rotor and the stator can be made by laminations punched by a punching machine; the production has high level of mechanization, and the production cost is greatly reduced. The amplitudes of electromotive force output by the sinusoidal windings and the cosine windings respectively make a P-time sine and cosine change as the rotor rotation angle, thus the output winding has the function of a two-phase multi-polar resolver.
Description
Technical field
The present invention relates to a kind of resolver, relate in particular to a kind of reluctance type multipolar resolver.
Background technology
The traditional resolver that is used for angle measurement; Its field winding, the output winding is separately positioned on rotor and the stator, and it is a kind of brush (contact is arranged) structure that has; If will realize non-brushing; Need add an annular coupling transformer (being called for short " ring becomes "), so, make the structure complicated of resolver; And its number of pole-pairs of this brushless resolver, great majority are with a pair of very main.If will use 2-12 to the utmost point, this rotation transformation, design and manufacture difficulty are very big; Almost be impossible, and existing another kind of so-called " cursor type resolver ", field winding output winding is all on stator; Realized non-brushing, but this cursor type resolver number of pole-pairs P is a lot, minimum extremely to also mostly 16 pairs extremely more than; And adopt baroque positive chorded winding, manufacture difficulty is big.These two types of resolvers when being used for the less multipole angular surveying of number of pole-pairs, be especially in use in number of pole-pairs and be 2-12 on the permanent magnetic Ac servo motor of the utmost point as rotor-position sensor, be not ideal element.
Summary of the invention
Complicated and be not suitable for number of pole-pairs in order to solve the existing rotating transformer structures that is used for angle measurement in the multipole angular surveying problem of 2-12 to the utmost point; The invention provides a kind of reluctance type multipolar resolver, be used for multipole angular surveying or multipole angular position sensor based on the magnetic resistance change rate principle.
Reluctance type multipolar resolver of the present invention comprises rotor, stator, is provided with air gap between the outer round surface of said rotor and the internal circular surfaces of stator, it is characterized in that, also comprises the field winding that is around on the said stator, positive chorded winding and cosine winding.These windings are uniformly distributed with on the tooth of stator, and are contained in the groove between tooth and the tooth, do not have winding on the rotor, and the winding on the stator comprises excitation winding, positive chorded winding and cosine winding.Field winding is arranged as positive and negative alternate being in series on stator.The amplitude of positive chorded winding and cosine winding output electromotive force changes by the sine and cosine rule.
Rotor, stator can be with being overrided to form after the used silicon steel sheet punching press of conventional motors.Circle is gone up the compartment of terrain and is had a plurality of teeth and groove in the stator.Rotor cylindrical uniform Design has P crest and P trough, is designed to slick and sly each other the connection between crest and the trough, forms rotor waveform outer round surface.P is the number of pole-pairs of reluctance type multipolar resolver, and its span is P=2-12.
When excitatory, through electromagnetic induction principle, positive chorded winding and cosine winding are exported induced electromotive force respectively to reluctance type multipolar resolver field winding of the present invention by the constant voltage alternating current of regulation, and its amplitude is made P sine and varies with cosine with angle of rotor.Reluctance type multipolar resolver of the present invention is simple in structure, and the positive chorded winding of its field winding, output voltage and cosine winding all are arranged on the stator, do not have winding on the rotor.Voltage transitions between excitation voltage and the output voltage need not to become through brush or ring and accomplishes, and has therefore realized non-brushing (or being contactlessization), from eliminated at all because the contact existence, many electromagnetic interference and the service life problem brought to operation.
Gap delta min on the outer round surface of said rotor between crest top and the stator internal circular surfaces is 0.36-1.2mm.
Gap between the trough bottom on the outer round surface of said stator internal circular surfaces and said rotor is between 3.2+ δ min and 3.5+ δ min.Said stator outside diameter is 151mm.
Gap delta min between the crest top on the outer round surface of said stator internal circular surfaces and said rotor is 1mm, and the gap between the trough bottom on said stator internal circular surfaces and the said rotor outer round surface is between 4.2-4.5mm.
Gap between the trough bottom on said stator internal circular surfaces and the said rotor outer round surface is 0.92+ δ min.Said stator outside diameter is 37mm.
Gap delta min between the crest top on the outer round surface of said stator internal circular surfaces and said rotor is 0.36mm, and the gap between the trough bottom on said stator internal circular surfaces and the said rotor outer round surface is 1.28mm.
Magnetoresistance transformer of the present invention has following characteristics:
1, the outer round surface shape of rotor is by containing sineization characteristic Design waviness.
2, positive and negative alternate being in series of field winding on the internal-round gear of stator, when field winding passed to the constant voltage sinusoidal ac, its exciting curent size was irrelevant with angle of rotor, so its input impedance is a constant.Output electromotive force Es, the Ec of positive chorded winding and cosine winding can be expressed as respectively:
Es=EmSinPα；
Ec=EmCosPα；
Wherein, α-angle of rotor; P-rotor pole logarithm; Em-for exporting the amplitude of winding output electromotive force.
Find out that from above-mentioned formula the amplitude of positive chorded winding and cosine winding output electromotive force will be made the voltage of P sine and P varies with cosine respectively with angle of rotor, thereby realized that the output winding has the function of two phase multipolar resolvers.
The beneficial effect that the present invention reached:
Reluctance type multipolar resolver of the present invention, structure is quite simple, and field winding during manufacturing, positive chorded winding, cosine winding can be used special coil winding machine, and be disposable directly in stator core, promptly replaced the manual work operation of rolling off the production line with mechanization.Rotor punching, stator punching can be used the high velocity ram machine punching out; Laminate into rotor and stator then; And circle and rotor cylindrical need not mill processing in the stator; Just can guarantee the axiality of circle and rotor cylindrical in air gap size and the stator,, thereby also just greatly reduce production cost so mechanization degree is quite high when producing.This is the salient point of reluctance type multipolar resolver design of the present invention.The amplitude of positive chorded winding and cosine winding output electromotive force will be made the voltage of P sine and P varies with cosine respectively with angle of rotor, thereby will have realized that the output winding has the function of two phase multipolar resolvers.The present invention is mainly used in the rotor position detecting sensor that has multiple number of pole-pairs (2-12 is to the utmost point) to require as power drive motor (permanent magnetic Ac servo motor) on the electric automobile.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is a winding coiling position view on the stator tooth;
Among the figure, rotor 1, stator 2, tooth 2a, groove 2b, air gap 3, field winding 4, positive chorded winding 5, cosine winding 6.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
Embodiment 1
As depicted in figs. 1 and 2, reluctance type multipolar resolver of the present invention comprises rotor 1, stator 2, field winding 4, positive chorded winding 5, cosine winding 6.Rotor 1 forms with the silicon steel plate stacking of stator 2 by the high magnetic conduction of multi-disc.Evenly be provided with air gap 3 (being generally 0.3-1.2mm) between the outer round surface of the internal circular surfaces of stator 2 and rotor 1.The outer round surface of rotor 1 evenly is provided with P crest and trough.The mutual slyness of crest and trough connects into the waveform outer round surface of rotor 1, and P is the number of pole-pairs of this reluctance type multipolar resolver.
The stator internal circular surfaces has tooth 2a and groove 2b vertically, in the space of groove 2b, be wound with field winding 4, positive chorded winding 5 and cosine winding 6 around tooth 2a.Wherein, the short transverse of each tooth 2a upper edge tooth leans on surface unshakable in one's determination all to be wound with the field winding 4 that positive and negative alternate series connection becomes ground floor equably; On the field winding 4 of ground floor; Be wound with the positive chorded winding 5 of the amplitude of output electromotive force, on the positive chorded winding 5 of the second layer, be wound with three layer the cosine winding 6 of the amplitude of output electromotive force by the distribution of sine and cosine rule by the second layer of sinusoidal rule distribution; And in the cosine winding 6 of the positive chorded winding 5 of the second layer and the 3rd layer; Both sides respectively have half winding to exchange level, and promptly positive chorded winding 5 has half winding on the 3rd layer, cosine winding 6 have half the at winding on the second layer; This is characteristic of the present invention for promoting the winding " transposition " of exporting the electric property of winding, as shown in Figure 3.For ease of distinguishing each terminal, can adopt the terminal of different colours, field winding 4 leading-out terminals are R
1(redness), R
2(black), positive chorded winding leading-out terminal is S
2(yellow), S
4(green), cosine winding lead-out wire terminal is S
1(blueness), S
3(white); Above-mentioned lead-out wire terminal R
1, R
2, connect the constant voltage AC power, leading-out terminal S
2, S
4, S
1, S
3Be respectively the output of positive chorded winding and cosine winding.
Present embodiment with the difference of embodiment 1 is: positive chorded winding 5 is different with cosine winding 6 numbers of turn; The circle size is different with rotor 1 excircle dimension in the stator 2, and the gap on the outer round surface of stator 2 internal circular surfaces and rotor 1 between the trough bottom is 3.2+ δ min, and other compositions are identical with embodiment 1 with annexation.
The difference of present embodiment and embodiment 1 is: stator 2 outside diameters are 37mm, and number of stator slots is 10; Positive chorded winding 5 is different with cosine winding 6 numbers of turn; Gap on the outer round surface of stator 2 internal circular surfaces and rotor 1 between the trough bottom is 0.92+ δ min, and other compositions are identical with embodiment 1 with annexation.
The above only is a 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 know-why of the present invention; Can also make some improvement and distortion, these improvement and distortion also should be regarded as protection scope of the present invention.
Claims (10)
1. a reluctance type multipolar resolver comprises rotor, stator, is provided with air gap between the outer round surface of said rotor and the internal circular surfaces of stator, it is characterized in that, also comprises the field winding that is around on the said stator, positive chorded winding and cosine winding;
The internal circular surfaces compartment of terrain of said stator has tooth and groove; On each tooth, be wound with the positive and negative alternate ground floor field winding that is in series equably; On the ground floor field winding, be wound with the positive chorded winding of the second layer, on the positive chorded winding of the second layer, be wound with the 3rd layer of cosine winding; And the cosine winding of the positive chorded winding of the second layer and the 3rd layer respectively has half winding to exchange level, and promptly positive chorded winding has half winding on the 3rd layer, and the cosine winding has half winding on the second layer.
2. according to the said reluctance type multipolar resolver of claim 1, it is characterized in that the outer round surface of said rotor evenly is provided with P crest and P trough, the mutual slyness of said crest and trough connects into the waveform outer surface of rotor.
3. according to the said reluctance type multipolar resolver of claim 2, it is characterized in that P is the number of pole-pairs of reluctance type multipolar resolver, its span is P=2-12.
4. according to the said reluctance type multipolar resolver of claim 2, it is characterized in that the gap delta min on the outer round surface of said rotor between crest top and the stator internal circular surfaces is 0.36-1.2mm.
5. reluctance type multipolar resolver according to claim 4 is characterized in that, the gap between the trough bottom on the outer round surface of said stator internal circular surfaces and said rotor is between 3.2+ δ min and 3.5+ δ min.
6. reluctance type multipolar resolver according to claim 5 is characterized in that, said stator outside diameter is 151mm.
7. according to claim 2 or 4 described reluctance type multipolar resolvers; It is characterized in that; Gap delta min between the crest top on the outer round surface of said stator internal circular surfaces and said rotor is 1mm, and the gap between the trough bottom on said stator internal circular surfaces and the said rotor outer round surface is between 4.2-4.5mm.
8. reluctance type multipolar resolver according to claim 4 is characterized in that, the gap between the trough bottom on said stator internal circular surfaces and the said rotor outer round surface is 0.92+ δ min.
9. reluctance type multipolar resolver according to claim 8 is characterized in that, said stator outside diameter is 37mm.
10. according to claim 2 or 4 described reluctance type multipolar resolvers; It is characterized in that; Gap delta min between the crest top on the outer round surface of said stator internal circular surfaces and said rotor is 0.36mm, and the gap between the trough bottom on said stator internal circular surfaces and the said rotor outer round surface is 1.28mm.
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| CN201210357975.0A CN102842413B (en) | 2012-09-25 | 2012-09-25 | Reluctance type multi-polar resolver |
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| CN102842413B CN102842413B (en) | 2014-10-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876126A (en) * | 2017-04-01 | 2017-06-20 | 深圳市德西机电有限责任公司 | Stator and magnetoresistance transformer |
| CN110535258A (en) * | 2019-08-06 | 2019-12-03 | 苏州工业园区代尔塔电机技术有限公司 | A kind of outer rotor rotation structure changes |
| CN111292942A (en) * | 2018-12-10 | 2020-06-16 | 广东威灵汽车部件有限公司 | Rotary transformer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015218945A1 (en) * | 2015-09-30 | 2017-03-30 | Infineon Technologies Ag | Signal transmitter with improved detection of the angle signal |
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| RU1798865C (en) * | 1990-08-01 | 1993-02-28 | Центральный научно-исследовательский институт "Электроприбор" | Induction reducer |
| CN1825506A (en) * | 2006-03-31 | 2006-08-30 | 哈尔滨工业大学 | Magnetoresistance brushless multi-polar rotation transformer |
| CN101545917A (en) * | 2009-05-07 | 2009-09-30 | 哈尔滨工业大学 | Sensor for measuring relative rotating speed of two concentric rotating shafts of double-rotor motor |
| CN202043016U (en) * | 2011-04-06 | 2011-11-16 | 江门职业技术学院 | External rotor magnetic resistance type angular position sensor |
| CN102664096A (en) * | 2012-06-06 | 2012-09-12 | 哈尔滨工业大学 | Outer rotor salient pole reluctance type multi-pole rotary transformer |
| CN202905443U (en) * | 2012-09-25 | 2013-04-24 | 苏州和鑫电气股份有限公司 | Magnetic resistance type multi-polar rotary transformer |
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2012
- 2012-09-25 CN CN201210357975.0A patent/CN102842413B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1798865C (en) * | 1990-08-01 | 1993-02-28 | Центральный научно-исследовательский институт "Электроприбор" | Induction reducer |
| CN1825506A (en) * | 2006-03-31 | 2006-08-30 | 哈尔滨工业大学 | Magnetoresistance brushless multi-polar rotation transformer |
| CN101545917A (en) * | 2009-05-07 | 2009-09-30 | 哈尔滨工业大学 | Sensor for measuring relative rotating speed of two concentric rotating shafts of double-rotor motor |
| CN202043016U (en) * | 2011-04-06 | 2011-11-16 | 江门职业技术学院 | External rotor magnetic resistance type angular position sensor |
| CN102664096A (en) * | 2012-06-06 | 2012-09-12 | 哈尔滨工业大学 | Outer rotor salient pole reluctance type multi-pole rotary transformer |
| CN202905443U (en) * | 2012-09-25 | 2013-04-24 | 苏州和鑫电气股份有限公司 | Magnetic resistance type multi-polar rotary transformer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876126A (en) * | 2017-04-01 | 2017-06-20 | 深圳市德西机电有限责任公司 | Stator and magnetoresistance transformer |
| CN111292942A (en) * | 2018-12-10 | 2020-06-16 | 广东威灵汽车部件有限公司 | Rotary transformer |
| CN110535258A (en) * | 2019-08-06 | 2019-12-03 | 苏州工业园区代尔塔电机技术有限公司 | A kind of outer rotor rotation structure changes |
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| CN102842413B (en) | 2014-10-08 |
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