CN204205737U - A kind of energy-saving motor eliminating rotor Slot force - Google Patents
A kind of energy-saving motor eliminating rotor Slot force Download PDFInfo
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- CN204205737U CN204205737U CN201420526825.2U CN201420526825U CN204205737U CN 204205737 U CN204205737 U CN 204205737U CN 201420526825 U CN201420526825 U CN 201420526825U CN 204205737 U CN204205737 U CN 204205737U
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- teeth groove
- motor
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- salient pole
- energy
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Abstract
Eliminate an energy-saving motor for rotor Slot force, its stator core is the structure that salient pole and teeth groove coexist, i.e. existing salient pole but also have teeth groove on stator core, and teeth groove is positioned at salient pole towards on the inner face of rotor, and teeth groove is equipped with main winding, and salient pole is equipped with auxiliary winding.The quantity of stator core salient pole equals three times of motor numbers of pole-pairs.The wire embeding ways of the main winding rule being installed on teeth groove traditionally motor, the auxiliary winding phase sequence be installed on salient pole is identical with the main winding phase sequence being installed on teeth groove, and phase shifting, magnetic direction is contrary.Its advantage is: the teeth groove resistance reducing or eliminate motor, when same load, can reduce by three electric currents, active power, reactive power and apparent power of motor, improves power factor, makes energy saving motor; Perfect heat-dissipating.
Description
Technical field
The utility model relates to motor technology field, particularly relates to a kind of energy-saving motor eliminating rotor Slot force.
Background technology
In more than 200 year historical process in the past, electromagnetic elder generation's utility model direct current, three alternating currents, utility model DC motor and alternating current motor, synchronous motor, asynchronous motor, servomotor etc.Motor plays a part very important in world today's industrial production and daily life.Conventional motors stator is divided into salient pole type stator and hidden pole type stator, and the form of salient pole type stator core is the inside at track ring, and towards rotor axis, uniform multiple inwardly protruded iron core column, has certain air gap between the end face of iron core column and rotor.Salient pole type stator adopts centralized winding, usually turns to square coil, warp band wrapping sizing, then after paint-dipping drying process, be inlaid on the iron core of convex magnetic pole, DC motor and stepping motor use salient pole stator usually.The form of hidden pole type stator core is in track ring internal circumference, the teeth groove that several shapes of punching are identical equably.Hidden pole type stator adopts distributed winding, and each magnetic pole forms coil groups by one or several coil according to the wiring of certain rule setting-in, and form rotating magnetic field after energising, alternating current motor uses hidden pole type stator usually.
On the stator core of stepping motor, have multiple magnet limbs in inner circumferential, salient pole top has the tooth of some, and the facewidth is the same with space of teeth size, and tooth is here used for overlapping with the tooth of rotor, rotor driven fine rotational.In the stator salient poles of large-sized DC motor, salient pole top sometimes can have the groove being parallel to rotor conductor of some, compensative winding is placed in groove, to eliminate the distortion of field that armature reaction causes, compensative winding is connected with rotor windings, when the load, the electric current in compensative winding also changes.Compensative winding greatly increases the cost of motor, is only used in the occasion that extremely serious load character must apply them.
Current motor three asynchronous motors and synchronous motor are all depend on the principle that three-phase electricity alternately forms rotating magnetic field to carry out work.Three asynchronous motors are by rotor slippage Absorption Current excitation and acting.Rotor slippage is larger, and stator current is larger.The essential condition of electric motor normal working is that magnetic circuit must close.The magnetic circuit of conventional tooth slot type non-salient pole stator motor enters the tooth teeth groove from rotor, then is closed by the iron core ring of teeth groove outside.But from acting order, stator rotating magnetic field rotor driven rotates, and namely mechanical energy externally export, and the rotor be excited rotates in bore of stator, rotor magnetic pole in rotation interacts with the teeth groove of fixing stator, and this is a kind of magnetic resistance, needs to consume portion of energy and overcomes.When load one timing, reduce stator current and improve the mark that power factor is all energy saving motor.
Utility model content
The technical problems to be solved in the utility model is, a kind of teeth groove resistance that can reduce or eliminate motor is provided, when same load, three electric currents, active power, reactive power and apparent power of motor can be reduced, improve power factor, make the energy-saving motor of the elimination rotor Slot force of energy saving motor.
The technical scheme adopted is:
A kind of energy-saving motor eliminating rotor Slot force, the stator core of this motor is the structure that salient pole and teeth groove coexist, i.e. existing salient pole but also have teeth groove on stator core, and teeth groove is positioned at salient pole towards on the inner face of rotor, teeth groove is equipped with main winding, and salient pole is equipped with auxiliary winding.
The quantity of above-mentioned stator core salient pole equals three times of motor numbers of pole-pairs.
The above-mentioned auxiliary winding phase sequence be installed on salient pole is identical with the main winding phase sequence being installed on teeth groove, phase shifting certain angle, the position of the auxiliary winding that A phase main winding is corresponding is in the stator salient poles at teeth groove place of installing B phase or C phase main winding, and the auxiliary winding of A phase can not be arranged in the stator salient poles at A phase main winding teeth groove place in other words.The each auxiliary winding of individual event is contrary with the transient magnetic field direction closing on main winding.
The above-mentioned auxiliary winding be installed on salient pole is in series with the main winding being installed on teeth groove is same, and three-phase windings can select Y-connection by designing requirement, and triangle also can be selected to connect.
Above-mentioned teeth groove is all positioned at salient pole towards on the inner face of rotor, and the gap between salient pole does not use as teeth groove.
The wire embeding ways of the above-mentioned main winding rule being installed on teeth groove traditionally motor, rule skips salient pole gap.Because the space in salient pole gap does not arrange winding, teeth groove design needs to narrow and deepens, to provide necessary winding inserting space.
The above-mentioned auxiliary winding be installed on salient pole can do multiple tap, and control the number of turn of auxiliary winding access, when the auxiliary winding switch-on coil number of turn is 0, motor performance is identical with conventional motors performance.
The utility model changes the magnetic circuit of conventional tooth slot type stator motor, stator field loop is forced to have to pass through stator salient poles, and the auxiliary winding magnetic direction be installed in stator salient poles is contrary with the direction, rotor field through this salient pole, partial offset air-gap field, reduce the magnetic resistance between rotor magnetic pole in rotation and the teeth groove of fixing stator, reduce the reactive power of motor, and then reduce energy loss, realize energy-conservation.
Rotor of the present utility model can be cage rotor, also can be synchronous rotor.May be used for asynchronous motor and also may be used for synchronous motor, its principle can also expand to the motor of other types as single phase electric motor type machine.
The utility model has the advantage of:
1, the teeth groove resistance of reduction or elimination motor, when same load, can reduce by three electric currents, active power, reactive power and apparent power of motor, improves power factor, makes energy saving motor.
2, owing to there is salient pole gap, perfect heat-dissipating.
Accompanying drawing explanation
Fig. 1 is a kind of 2 grade of 24 slot motor stator silicon steel plate shape and one item winding winding schematic diagram.
Fig. 2 is a kind of 4 grade of 36 slot motor stator silicon steel plate shape and one item winding winding schematic diagram.
In figure: 1-stator salient poles; 2-stator teeth groove; 3-salient pole gap; 4-main winding; 5-auxiliary winding.
Embodiment
A kind of energy-saving motor eliminating rotor Slot force, the stator core of this motor is the structure that salient pole and teeth groove coexist, i.e. existing salient pole but also have teeth groove on stator core, and teeth groove is positioned at salient pole towards on the inner face of rotor, salient pole is equipped with auxiliary winding, and teeth groove is equipped with main winding.
It is a kind of individual event winding connection method of 2 pole 24 slot motors shown in Fig. 1, stator silicon steel plate distributes 6 stator salient poles 1, stator salient poles quantity=2(pole) × 3=6, stator teeth groove 2 is positioned at stator salient poles 1 towards on the inner face of rotor, and the space in salient pole gap 3 does not arrange winding.
The auxiliary winding 5 that A1-U1, A2-U2, A3-U3, A4-U4 in Fig. 1 are the main winding 4, Aw1-Uw1 of the energy-saving motor of elimination rotor Slot force described in the utility model, Aw2-Uw2 is the energy-saving motor of elimination rotor Slot force described in the utility model.
It is a kind of individual event winding connection method of 4 pole 36 slot motors shown in Fig. 2, stator silicon steel plate distributes 12 stator salient poles 1, stator salient poles quantity=4(pole) × 3=12, stator teeth groove 2 is positioned at stator salient poles 1 towards on the inner face of rotor, and the space in salient pole gap 3 does not arrange winding.
The auxiliary winding 5 that A1-U1, A2-U2, A3-U3, A4-U4, A5-U5, A6-U6 in Fig. 2 are the main winding 4, Aw1-Uw1 of the energy-saving motor of elimination rotor Slot force described in the utility model, Aw2-Uw2, Aw3-Uw3, Aw4-Uw4 are the energy-saving motor of elimination rotor Slot force described in the utility model.
Main winding 4 traditionally rule, does not affect energy-saving effect of the present utility model.
Each winding of auxiliary winding 5 presses the series connection of Aw->Uw direction.
Auxiliary winding 5 is connected by A->U direction with main winding.
The direction of transient current shown in Fig. 1, Fig. 2 is A->U, according to arrangement rule, can find out, the magnetic direction that auxiliary winding 5 produces is contrary with the magnetic direction that main winding 4 produces, the coil turn of suitable adjustment auxiliary winding 5, the magnetic field that auxiliary winding 5 can be made to produce superposes with rotor field and offsets in air gap, reduces or eliminates rotor Slot force.
Because the space in salient pole gap 3 does not arrange winding, teeth groove design needs to narrow and deepens, to provide necessary winding inserting space.
In Fig. 1, main winding 4 occupies the stator teeth groove 2 on 4 salient poles respectively, and teeth groove gap 3 is sandwiched in the middle of main winding 4, when adopting this arrangement, the magnetic field of auxiliary winding 5 and the magnetic field of main winding 4 just right, direction is contrary.
In Fig. 2, main winding 4 occupies the stator teeth groove 2 on 2 salient poles respectively, when adopting this arrangement, auxiliary winding 5 magnetic field and main winding 4 magnetic direction angled, direction is contrary.
The winding of the individual event winding shown in Fig. 1 rotates the winding that namely 120 ° obtain 2 pole 24 other 2 phase windings of slot motor in turn.
The winding of the individual event winding shown in Fig. 2 rotates the winding that namely 60 ° obtain 4 pole 36 other 2 phase windings of slot motor in turn.
Claims (6)
1. eliminate the energy-saving motor of rotor Slot force for one kind, it is characterized in that stator core is the structure that stator salient poles (1) coexists with stator teeth groove (2), i.e. existing salient pole but also have teeth groove on stator core, stator teeth groove (2) is positioned at stator salient poles (1) towards on the inner face of rotor, stator salient poles (1) is equipped with auxiliary winding (5), stator teeth groove (2) is equipped with main winding (4).
2. a kind of energy-saving motor eliminating rotor Slot force according to claim 1, is characterized in that the quantity of described stator core salient pole equals three times of motor numbers of pole-pairs.
3. a kind of energy-saving motor eliminating rotor Slot force according to claim 1, it is characterized in that described auxiliary winding (5) phase sequence be installed in stator salient poles (1) is identical with main winding (4) phase sequence being installed on stator teeth groove (2), phase shifting, magnetic direction is contrary, with being in series.
4. a kind of energy-saving motor eliminating rotor Slot force according to claim 1, it is characterized in that all stator teeth groove (2) are all positioned at salient pole towards on the inner face of rotor, salient pole gap (3) do not use as stator teeth groove.
5. a kind of energy-saving motor eliminating rotor Slot force according to claim 1, is characterized in that the wire embeding ways rule of the described main winding rule being installed on teeth groove traditionally motor.
6. a kind of energy-saving motor eliminating rotor Slot force according to claim 1, is characterized in that the described auxiliary winding (5) be installed on salient pole can do multiple tap, controls the number of turn of auxiliary winding access, thus controls the performance of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526825.2U CN204205737U (en) | 2014-09-15 | 2014-09-15 | A kind of energy-saving motor eliminating rotor Slot force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526825.2U CN204205737U (en) | 2014-09-15 | 2014-09-15 | A kind of energy-saving motor eliminating rotor Slot force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204205737U true CN204205737U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420526825.2U Expired - Fee Related CN204205737U (en) | 2014-09-15 | 2014-09-15 | A kind of energy-saving motor eliminating rotor Slot force |
Country Status (1)
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|---|---|
| CN (1) | CN204205737U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242494A (en) * | 2014-09-15 | 2014-12-24 | 杨猛 | Energy-saving motor capable of eliminating resistance of rotor tooth grooves |
| WO2017092191A1 (en) * | 2015-12-02 | 2017-06-08 | 中山大洋电机股份有限公司 | Stator punching, stator assembly and external rotor motor |
| CN110707842A (en) * | 2019-12-03 | 2020-01-17 | 史政齐 | Servo motor for inhibiting reluctance torque pulsation |
| CN110729866A (en) * | 2019-12-11 | 2020-01-24 | 山东理工大学 | Electric excitation salient pole motor for electric automobile |
-
2014
- 2014-09-15 CN CN201420526825.2U patent/CN204205737U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242494A (en) * | 2014-09-15 | 2014-12-24 | 杨猛 | Energy-saving motor capable of eliminating resistance of rotor tooth grooves |
| WO2017092191A1 (en) * | 2015-12-02 | 2017-06-08 | 中山大洋电机股份有限公司 | Stator punching, stator assembly and external rotor motor |
| CN110707842A (en) * | 2019-12-03 | 2020-01-17 | 史政齐 | Servo motor for inhibiting reluctance torque pulsation |
| CN110729866A (en) * | 2019-12-11 | 2020-01-24 | 山东理工大学 | Electric excitation salient pole motor for electric automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20170915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |