CN201234176Y - Motor with controllable magnetic strength of rotor magnetic pole - Google Patents
Motor with controllable magnetic strength of rotor magnetic pole Download PDFInfo
- Publication number
- CN201234176Y CN201234176Y CNU2008201266731U CN200820126673U CN201234176Y CN 201234176 Y CN201234176 Y CN 201234176Y CN U2008201266731 U CNU2008201266731 U CN U2008201266731U CN 200820126673 U CN200820126673 U CN 200820126673U CN 201234176 Y CN201234176 Y CN 201234176Y
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- 238000004804 winding Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 230000005284 excitation Effects 0.000 claims 1
- 230000002452 interceptive effect Effects 0.000 claims 1
- 230000005389 magnetism Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
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Abstract
The utility model relates to a controllable motor of rotor magnetic pole magnetism intensity, including at least: a stator having a plurality of magnetic pole coils wound in a three-phase input manner; a rotor having a plurality of electromagnetic poles formed by electrically exciting coils is wound in such a manner as to be successively wound in a forward winding and a reverse winding order to constitute a rotor having N, S magnetic poles arranged alternately. The method for changing the torque and rotation speed of the motor is provided by using the input power strength, the speed of the motor rotation speed or the feedback signals of the stator load current and the like as the automatic control basis, and breaks through the category that the motor can only do fixed torque and is limited to a certain range of rotation speed output for a long time, thereby improving the practical efficiency of the motor.
Description
Technical field
The utility model relates to the design of a kind of brushless motor structure, particularly be a kind ofly can freely change motor torsion and can expand the range of speeds, can reach the controllable motor of rotor magnetic pole magnetic power of the saving energy again.
Background technology
Traditional power with brushless motor all be with two-phase or three-phase pattern for its rotor of basis of its structural design all with " permanent super magnet " constitute, to form so-called non-equilibrium state,, reach torsion output to make the rotor rotation by the stator rotating magnetic field; Existing general inner-rotor type motor is to be provided with rotor within most the cylindrical N of permanent magnet form, S, N, the S.... arrangement on the rotor, being cylindric arrangement with the periphery, to be provided with the external stator of multiple-grooved pole coil corresponding, and wear a rotating shaft at the internal rotor center, inhale to utilize the external stator pole coil to produce, make during repulsion corresponding within the rotor rotation.Existing brushless motor, its rotor all utilizes the magnetic magnetic pole of permanent super magnet (as the Nd-Fe-B class) as rotor, though its torsion is big, but rotating speed is limited to can't improve in the certain limit because of the restriction of permanent super magnet, so the torsion and the range of speeds of motor, all limited for a long time always, can change that can to change with rotating speed be very difficult thing so motor will have torsion concurrently by permanent super magnet.
In view of said motor fails between torsion and the range of speeds compatibility and co-existence important breakthrough is arranged because of configuration aspects, causing applicable category can't promote all the time again, the utility model people is with practical experience for many years, the utilization of collocation scientific principle, through constantly testing, studying, there is the strong and weak controllable motor of rotor magnetic pole magnetic of this practicality to produce eventually, it has taken into account the big torsion of the slow-speed of revolution, with can high rotary speed property, break through the motors designs bottleneck, significantly widened at one stroke torsion, the range of speeds of motor, this new design benefits the society.
Summary of the invention
The purpose of this utility model is to provide a kind of rotor magnetic pole magnetic strong and weak controllable motor, in order to overcome the defective that prior art exists.
For reaching above-mentioned purpose, the strong and weak controllable motor of the rotor magnetic pole magnetic of the utility model design includes at least: a stator, have a plurality of pole coils, and adopt the coiling of three-phase input mode and form; One rotor, have a plurality of with the formed electromagnetic pole of electric magnetizing coil, its winding mode for adopt one just around, the order continuous reeling of one back-roll is finished, has N with formation, S arranges the spaced rotor of magnetic, and described motor center axle is provided with a conducting ring and corresponding two carbon brush, described two carbon brush utilize a spring to do respectively and support, so that keeping with the conducting ring rubber-like, two carbon brush forever contact, so that all electric magnetizing coils can be accepted the strong and weak control of energising on the rotor in the rotation start, can change the power of electromagnetic pole magnetic simultaneously.
Above-mentioned utilization input energising amount power is as changing the control foundation of motor torsion with rotating speed, the speed of all right motor rotary speed or with feedback signals such as stator load current sizes.
The beneficial effects of the utility model are compared with the prior art, give up the magnetic magnetic pole that uses existing permanent magnet, and use electromagnetic pole with electric magnetizing coil instead as motor rotor, and the power on electric current power of magnetizing coil of the feedback signal control rotor that utilizes motor rotary speed, and can control the power of rotor electromagnetic pole magnetic easily, also promptly control the power of motor outputting torsion and the height of rotating speed, significantly widen torsion, the range of speeds at one stroke.And under the situation of taking into account torsion and rotating speed, and can reach the effect of saving a large amount of electric power.
Description of drawings
Fig. 1 is the motor radial section figure of the utility model one preferred embodiment;
Fig. 2 is the local expanded view of the motor of the utility model one preferred embodiment;
Fig. 3 A is the motor axial section of the utility model one preferred embodiment
Fig. 3 B is the motor axial of the utility model one preferred embodiment.
Description of reference numerals: 1-motor; The 2-stator; The 20-pole coil; The 3-rotor; The 30-electromagnetic pole; 31-motor center axle; The 32-conducting ring; The 33-carbon brush; The 34-spring; 35-electricity magnetizing coil; The 36-insulator.
Embodiment
Below in conjunction with accompanying drawing, to this novel above-mentionedly is described in more detail with other technical characterictic and advantage.
The utility model provides a kind of rotor magnetic pole magnetic strong and weak controllable motor, sees also the structure cutaway view that Figure 1 shows that a kind of three-phase motor.Described motor (1) includes stator (2) and rotor (3) at least, described stator (2) has a plurality of pole coils (20), the design of this and existing general three-phase motor is as good as, this explanation is an example with the stator winding of one 12 groove pole coils (20), wherein U, V, W are stator three-phase input end point, the winding mode of its three-phase is: U phase 1 skips to 8 just around 7 back-rolls just around 2 back-rolls, and line tail Y connects; V phase 4 skips to 9 just around 10 back-rolls just around 3 back-rolls, and line tail Y connects; W phase 5 skips to 12 just around 11 back-rolls just around 6 back-rolls, and line tail Y connects, and forms the threephase stator framework.Because all having with the structure emphasis of this case, the structure of stator (2) part and principle do not relate to, so allow no longer this is done narration more.
See also Fig. 1 again, Fig. 2, shown in Fig. 3 A and Fig. 3 B, described rotor (3) has a plurality of with the formed electromagnetic pole of electric magnetizing coil (35) (30), in the utility model example, be example for having 10 electromagnetic poles (30), these 10 magnetic poles are formed with permanent super magnet entirely on traditional design, the utility model case is then with its change, adopt electromagnetic pole (30) form that constitutes electric magnetizing coil (35) with coiling, its winding mode for adopt one just around, the order continuous reeling of one back-roll is finished, has N with formation, S, N, S.... arrange magnetic rotor (3) separately, and have a conducting ring (32) and corresponding two carbon brush (33) on the described motor center axle (31), described two carbon brush (33) utilize a spring (34) to do respectively and support, so that two carbon brush (33) can be kept and flexible permanent contact of conducting ring (32) tool, so that the coil that rotor (3) is gone up on all electric magnetizing coils (35) can be accepted the strong and weak control of energising in the rotation start, can change the power of electromagnetic pole (30) magnetic simultaneously.
Motor (1) according to above-mentioned composition, when practice, after electrical current imports stator (2) and rotor (3) respectively, the magnetic reaction that all electromagnetic poles of described rotor (3) (30) meeting nature N continuous, S, N, S.... arrange, and form the active force that repels each other or inhale mutually simultaneously with the N of corresponding stator (2) or S magnetic, to impel motor (1) rotation start; Import the big or small or strong and weak of electric magnetizing coil (35) energising amount by control again, the strong and weak generation synchronously of N, S magnetic of electromagnetic pole (30) changed, this variation cooperates the electric current power of stator (2) pole coil (20), just can control the torque magnitude and the rotating speed height of motor (1) easily.
In addition, motor of the present utility model (1), aspect the magnetic power of the last electromagnetic pole (30) of control rotor (3), except the above-mentioned foundation that changes as automatic control via input energising amount size, feedback signal that also can the motor rotary speed speed is reached, motor (1) the torsion output aspect of little torsion when big torsion, high rotating speed when forming the slow-speed of revolution is to enlarge motor (1) rotation speed change scope.
Hold above-mentioned, motor of the present utility model (1) can also stator (2) load current size feedback signal reach the foundation of controlling its variation automatically, so just, big torsion in the time of forming the slow-speed of revolution, and when detecting underload, can freely improve rotating speed, and under the rated speed situation,, then increase rotor (3) exciting curent amount immediately to promote torsion if when detecting heavy duty, offset heavy duty, form the motor (1) that torsion and rotating speed can with the need and freely be controlled.
Integrate above-mentioned explanation as can be known, main demand of the present utility model is: the magnetic pole wheel that will have the permanent magnet of motor inside now changes over the electromagnetic pole rotor of electric magnetizing coil, change and the magnetic that can freely control electromagnetic pole is strong and weak, and employing comprises the power of utilizing input energising amount, the speed of motor rotary speed or be its automatically foundation of changing of control with feedback signals such as stator load current sizes, so that the method that changes motor torsion and rotating speed to be provided, and break through at one stroke the category that permanent magnet limited that motor torsion and rotating speed for a long time are fixed, and then the practical usefulness of lifting motor, and be the motor configuration design of an excellence and innovation.
In sum, the strong and weak controllable motor of the utility model rotor magnetic pole magnetic, real as above institute is old have can freely control motor torque magnitude and rotating speed just showing effect, and through look into public data do not see yet have identical or approximate, meet the application important document of patent of invention fully, file an application in accordance with the law.
More than explanation is novel just illustrative for this; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection range of the present utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201266731U CN201234176Y (en) | 2008-07-08 | 2008-07-08 | Motor with controllable magnetic strength of rotor magnetic pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201266731U CN201234176Y (en) | 2008-07-08 | 2008-07-08 | Motor with controllable magnetic strength of rotor magnetic pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201234176Y true CN201234176Y (en) | 2009-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201266731U Expired - Fee Related CN201234176Y (en) | 2008-07-08 | 2008-07-08 | Motor with controllable magnetic strength of rotor magnetic pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201234176Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296225A (en) * | 2018-10-09 | 2019-02-01 | 孙维军 | A kind of deformable performance stage is dedicated to build device |
| WO2022179201A1 (en) * | 2021-02-23 | 2022-09-01 | 歌尔股份有限公司 | Voice coil electric motor, and control method and control apparatus therefor |
-
2008
- 2008-07-08 CN CNU2008201266731U patent/CN201234176Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296225A (en) * | 2018-10-09 | 2019-02-01 | 孙维军 | A kind of deformable performance stage is dedicated to build device |
| WO2022179201A1 (en) * | 2021-02-23 | 2022-09-01 | 歌尔股份有限公司 | Voice coil electric motor, and control method and control apparatus therefor |
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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: 20090506 Termination date: 20160708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |