CN103683584A - Opposite pole type inductor motor hiding salient pole - Google Patents
Opposite pole type inductor motor hiding salient pole Download PDFInfo
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- CN103683584A CN103683584A CN201310654622.1A CN201310654622A CN103683584A CN 103683584 A CN103683584 A CN 103683584A CN 201310654622 A CN201310654622 A CN 201310654622A CN 103683584 A CN103683584 A CN 103683584A
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Abstract
The invention provides an opposite pole type inductor motor hiding a salient pole. A motor stator core is of a lamination structure and is formed by overlaying silicon steel sheets, and a plurality of big grooves and a plurality of small grooves are formed in the silicon steel sheets. A stator side comprises DC exciting windings and three-phase armature windings, the exciting windings are embedded in the big grooves of the stator core, and the armature windings are embedded in the small grooves of the stator core. A motor rotor is also formed by overlaying silicon steel sheets, and m-shaped magnetic separating grooves are formed in the silicon steel sheets. The surface of the rotor is smooth, the m-shaped magnetic separating grooves of the inner portion restrict a main magnetic flux path inside the motor, a salient pole effect is formed on the rotor, and bidirectional alternating air-gap magnetic fields are established in air gaps. According to the opposite pole type inductor motor hiding the salient pole, a hiding salient pole structure is adopted, the cogging torque of the motor is lowered, the torque pulsation in the motor running process is reduced, the wind path structure of the motor is improved, wind friction loss in high-speed running of the motor is reduced, and the running efficiency of the motor is improved.
Description
Technical field
The invention belongs to technical field of motors, be specifically related to a kind of opposite pole formula inductor machine of implicit salient pole.
Background technology
Inductor machine rotor is solid construction, simple and reliable, and on rotor, there is no the parts such as excitation winding or permanent magnet, intensity is higher, can bear larger centrifugal force, so inductor machine is more used as high-speed electric expreess locomotive, at numerous areas, has a wide range of applications.
In order to set up the air-gap field of alternation, the rotor of inductor machine need adopt salient-pole structure, at rotor surface, groove is set equably.It is large that the employing of salient-pole structure makes inductor machine have cogging torque, the problems such as torque pulsation is serious, wind moussing loss aggravation, and these problems are restricting inductor machine and are being applied to more wide field, become problem demanding prompt solution in inductor machine research.
Summary of the invention
Goal of the invention: for above-mentioned prior art, propose a kind of opposite pole formula inductor machine with implicit salient pole, make this motor there is torque pulsation little, start-up and operation function admirable, the characteristic that wind moussing loss is low.
Technical scheme: a kind of opposite pole formula inductor machine of implicit salient pole, comprises stator and the rotor that is arranged on described stator inner side;
Described rotor surface is smooth, comprises the rotor core being formed by silicon steel plate stacking, and described silicon steel sheet inside is provided with several " mountain " font magnet isolation tanks symmetrical centered by rotating shaft core; The opening of described " mountain " font magnet isolation tank is towards stator side; " mountain " font magnet isolation tank correspondence on described silicon steel sheet arranges and forms magnetic barrier;
Described stator comprises stator core, armature winding and the excitation winding being formed by silicon steel plate stacking; In described stator core, along stator circumference, several vats are evenly set, in described vat, embed excitation winding, between two adjacent vats, several sulculuses are evenly set, in described sulculus, embed single-phase or threephase armature winding.
As preferred version of the present invention, in described " mountain " font magnet isolation tank, fill air, or use non-magnet material.The mechanical subtended angle that the dual-side of described each " mountain " font magnet isolation tank forms is adjustable mechanical subtended angle.On the silicon steel sheet of described rotor core, be provided with the axial location hole in order to fixed rotor silicon steel sheet.
Beneficial effect: in the opposite pole formula inductor machine of implicit salient pole of the present invention, the input of excitation winding and armature winding are all connected on motor stator side, and field power supply is DC power supply, forms " separate excitation " relation in direct current machine with armature winding.Rotor surface is smooth, in inner " mountain " font magnet isolation tank for air or fill with non-magnet_conductible material, magnet isolation tank defines the main flux path in motor, and each " mountain " font magnet isolation tank forms magnetic barrier, and this magnetic barrier is being brought into play the effect of traditional inductor machine rotor.Region between adjacent two " mountain " font magnet isolation tanks can be considered the rotor with salient pole of traditional inductor machine, for main flux provides path, thereby on rotor, has formed a kind of " salient pole " effect, has set up the air-gap field of two-way alternation in air gap.In excitation winding, pass into after direct current, form the air-gap field of polarity alternation in air gap, along with being rotated in armature winding of rotor produces induced electromotive force, the input of excitation winding and the output of armature winding are all in motor stator side.Compared with prior art have the following advantages:
1. rotor adopts implicit salient-pole structure, and rotor surface is smooth, and wind moussing loss is low, operational efficiency is high.
2. rotor adopts implicit salient-pole structure, and cogging torque is little, torque pulsation is low, and the start-up and operation performance of motor improves.
3. the implicit salient pole width on rotor is certain, and magnetic flux path is clear and definite, and the Electromagnetic Design and the performance that are beneficial to motor are calculated;
4. owing to having the advantages such as cogging torque is little, torque pulsation is low, the application of inductor machine is further expanded.
Accompanying drawing explanation
Fig. 1 is the opposite pole formula inductor type motor radial section schematic diagram of implicit salient pole;
Fig. 2 is the stator punching schematic diagram of the opposite pole formula inductor type motor of implicit salient pole;
Fig. 3 is the rotor punching schematic diagram of the opposite pole formula inductor type motor of implicit salient pole;
In figure: stator core 1, rotor core 2, stator vat 3, stator sulculus 4, " mountain " font magnet isolation tank 5, location hole 6, armature winding 7, excitation winding 8.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done further and explained.
As shown in Figure 1, a kind of opposite pole formula inductor machine of implicit salient pole, comprises stator and the rotor that is arranged on stator inner side, and rotor is coaxially installed, and rotor surface smooth interior has implicit salient-pole structure.
As shown in Figure 2, rotor 3 is cylindrical, comprises rotor core 2 and rotating shaft, on rotor both without permanent magnet also without excitation winding.Rotor core 2 is formed by silicon steel plate stacking, every silicon steel sheet inside is provided with several " mountain " font magnet isolation tanks 5 symmetrical centered by rotating shaft core, in the present embodiment, " mountain " font magnet isolation tank 5 is 6, so each " mountain " font magnet isolation tank accounts for 60 ° of mechanical angles.The opening of each " mountain " font magnet isolation tank, towards stator side, leaves gap between adjacent two " mountain " font magnet isolation tanks 5.The corresponding setting of " mountain " font magnet isolation tank on all silicon steel sheets that are overrided to form, forms 6 magnetic barriers.On every silicon steel sheet of rotor core 2, be provided with 6 axial location holes 6 with fixed rotor silicon steel sheet in order to location.The rotor core being formed by rotor silicon steel plate stacking is the cylinder of inner hollow, by axially fastening bolt, a plurality of rotor punchings is fixed together.The cavity that rotor core inside is formed by " mountain " font magnet isolation tank is air or fills non-magnet material.
As shown in Figure 3, stator is comprised of stator core 1, armature winding 7 and excitation winding 8.Wherein, stator core 1 is formed by the silicon steel plate stacking that has teeth groove.On stator core silicon steel sheet, contain 4 two kinds of grooveds of vat 3 and sulculus.In stator core 1, along stator circumference, several vats 3 are evenly set, in the present embodiment, vat number is 4, in vat 3, embeds excitation winding.Between two adjacent vats, several sulculuses 4 are evenly set, in sulculus 4, embed single-phase or threephase armature winding.In the present embodiment, between adjacent two vats, be uniformly distributed 6 sulculuses, armature winding 7 can be connected or is in parallel is single-phase or three phase windings.The input of excitation winding 8 and armature winding 7 are all connected on motor stator side, and field power supply is DC power supply, form " separate excitation " relation in direct current machine with armature winding.
If the quantity of " mountain " the font magnet isolation tank in electric machine rotor iron core punching is n, on stator iron-core lamination, the quantity of sulculus should be 6n in theory, but due to the impact that need to consider that the existence of excitation winding is selected sulculus quantity, actual sulculus number is less than 6n.
Vat on motor stator is 4, and armature winding is three phase times, and for guaranteeing that armature winding is 60 ° of facies tracts, armature winding groove is counted Z
1the rotor magnet isolation tank that should equal 6 times is counted Z
2, sulculus 4 numbers on motor stator are pressed 6Z
2decile.Due in stator core except embedding armature winding, also to embed excitation winding, so armature winding practical number of slots Z
1'=2/3*6Z
2, utilize 2/3 stator core to embed armature winding, utilize 1/3 stator core to embed excitation winding.
In addition, the mechanical subtended angle that the dual-side of each " mountain " font magnet isolation tank forms is adjustable mechanical subtended angle.The side of each " mountain " font magnet isolation tank and magnet isolation tank centre symmetry line angle are (180/n) ± 10 °, and n is the quantity of " mountain " font magnet isolation tank.
The rotor surface of this motor is smooth, and inner " mountain " font magnet isolation tank defines the main flux path in motor, thereby on rotor, has formed a kind of " salient pole " effect.In excitation winding, pass into after direct current, form the air-gap field of polarity alternation in air gap, along with being rotated in armature winding of rotor produces induced electromotive force, the input of excitation winding and the output of armature winding are all in motor stator side.In rotor core, by " mountain " font magnet isolation tank, form magnetic barrier, this magnetic barrier is being brought into play the effect of traditional inductor machine rotor.Region between adjacent two " mountain " font magnet isolation tanks can be considered the rotor with salient pole of traditional inductor machine, for main flux provides path.
The opposite pole formula inductor machine of the implicit salient pole that the present invention proposes has been abandoned the rotor with salient pole structure of traditional inductor machine, eliminated obvious teeth groove saliency, reduced motor cogging torque, improved electric motor starting and runnability, reduce the wind moussing loss in running simultaneously, improved the operational efficiency of motor.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. an opposite pole formula inductor machine for implicit salient pole, is characterized in that: comprise stator and the rotor that is arranged on described stator inner side;
Described rotor surface is smooth, comprises the rotor core (2) being formed by silicon steel plate stacking, and described silicon steel sheet inside is provided with several " mountain " font magnet isolation tanks (5) symmetrical centered by rotating shaft core; The opening of described " mountain " font magnet isolation tank is towards stator side; " mountain " font magnet isolation tank correspondence on described silicon steel sheet arranges and forms magnetic barrier;
Described stator comprises stator core (1), armature winding (7) and the excitation winding (8) being formed by silicon steel plate stacking; Described stator core (1) is upper evenly arranges several vats (3) along stator circumference, described vat embeds excitation winding in (3), between two adjacent vats, several sulculuses (4) are evenly set, in described sulculus (4), embed single-phase or threephase armature winding.
2. the opposite pole formula inductor machine of a kind of implicit salient pole according to claim 1, is characterized in that: in described " mountain " font magnet isolation tank (5), fill air, or fill non-magnet material.
3. the opposite pole formula inductor machine of a kind of implicit salient pole according to claim 1, is characterized in that: the mechanical subtended angle that the dual-side of described each " mountain " font magnet isolation tank forms is adjustable mechanical subtended angle.
4. the opposite pole formula inductor machine of a kind of implicit salient pole according to claim 1, is characterized in that: on the silicon steel sheet of described rotor core (2), be provided with the axial location hole (6) in order to fixed rotor silicon steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310654622.1A CN103683584B (en) | 2013-12-05 | 2013-12-05 | A kind of opposite pole formula inductor machine of implicit salient pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310654622.1A CN103683584B (en) | 2013-12-05 | 2013-12-05 | A kind of opposite pole formula inductor machine of implicit salient pole |
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| Publication Number | Publication Date |
|---|---|
| CN103683584A true CN103683584A (en) | 2014-03-26 |
| CN103683584B CN103683584B (en) | 2016-02-03 |
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|---|---|---|---|
| CN201310654622.1A Expired - Fee Related CN103683584B (en) | 2013-12-05 | 2013-12-05 | A kind of opposite pole formula inductor machine of implicit salient pole |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332105Y (en) * | 1998-07-28 | 1999-08-04 | 常柴集团微特电机厂 | Induction permanent-magnet stepping motor |
| JP2006121821A (en) * | 2004-10-21 | 2006-05-11 | Honda Motor Co Ltd | Synchronous reluctance motor and electric steering device mounted with the synchronous reluctance motor |
| CN201868960U (en) * | 2010-11-23 | 2011-06-15 | 东南大学 | Magnetic flux changing-over power generator |
| CN103312061A (en) * | 2013-06-17 | 2013-09-18 | 东南大学 | Switch magnetic chain motor with concealed salient pole |
-
2013
- 2013-12-05 CN CN201310654622.1A patent/CN103683584B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332105Y (en) * | 1998-07-28 | 1999-08-04 | 常柴集团微特电机厂 | Induction permanent-magnet stepping motor |
| JP2006121821A (en) * | 2004-10-21 | 2006-05-11 | Honda Motor Co Ltd | Synchronous reluctance motor and electric steering device mounted with the synchronous reluctance motor |
| CN201868960U (en) * | 2010-11-23 | 2011-06-15 | 东南大学 | Magnetic flux changing-over power generator |
| CN103312061A (en) * | 2013-06-17 | 2013-09-18 | 东南大学 | Switch magnetic chain motor with concealed salient pole |
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| CN103683584B (en) | 2016-02-03 |
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Granted publication date: 20160203 Termination date: 20191205 |