CN1805250A - DC motor - Google Patents
DC motor Download PDFInfo
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- CN1805250A CN1805250A CN 200510048366 CN200510048366A CN1805250A CN 1805250 A CN1805250 A CN 1805250A CN 200510048366 CN200510048366 CN 200510048366 CN 200510048366 A CN200510048366 A CN 200510048366A CN 1805250 A CN1805250 A CN 1805250A
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- magnetic pole
- motor
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- rotor
- permanent magnet
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Abstract
The invention relates to a direct-current motor which comprises a rotor and a stator. Wherein, the rotational axle of rotor has an electric-brush reversing device; the stator has several couples of magnetic poles. The invention is characterized in that: the iron core of rotor is coiled with electric axial winding; and the magnetic pole is a compound magnetic pole formed by the permanent magnet and exciting winding. Since the invention uses said compound magnetic pole, and according to M=CphiIa, while M is torque, C is constant, phi is magnetic flux and the Ia is electric axial current, via controlling the magnetic flux phi, the generator can output different torque to realize the effective regulation of output torque according to the load condition. The invention can combine the advantages of permanent magnetic motor and the current exciting motor, which can realize the controllable regulation in unstable load, to optimize the working condition, reduce the current in overload, and improve the service lives of motor and battery.
Description
Technical field:
The present invention relates to a kind of direct current machine, particularly a kind of direct current machine of compound rectifier excitation.
Background technology:
Motor of electric motor car is divided into by excitation mode at present: current excitation and permanent magnet excitation two big classes.Commonly used current excitation electromotor structure such as Fig. 1, current excitation electromotor comprises: rotor 2 and stator 1, be wound with armature winding 4 on the iron core of rotor, be equipped with somely on stator 1 inner surface to magnetic pole 3, magnetic pole is provided with excitation winding 5.Current excitation electromotor is switched on by excitation winding and is set up magnetic field, and the electric motor car of having used current excitation electromotor is when zero load, and the motor speed height is unfavorable for speed of a motor vehicle control; And when climbing, along with the increase of load, rotating speed of motor descends obviously, and it can improve the climbing and the overload capacity of electric motor car, but low in overload rear motor efficient, power consumption is big.
The structure of magneto such as Fig. 2, this type of motor comprises: rotor 2 and stator 1, be wound with armature winding 4 on the iron core of rotor, stator inner surface is provided with some to permanent magnet 6.Magneto provides magnetic field by permanent magnet, and the rotating speed of magneto is steady, and the electric bicycle speed ratio of having used magneto is easier to control, and motor is along with the increase of load, and rotating speed of motor descends few than current excitation electromotor.But when motor climbing or overload, require motor that very big moment of torsion output is arranged, at this moment, armature supply is very big, can burn motor when serious.
Above-mentioned two kinds of motors all can't be realized effective adjusting of output torque according to loading condition.
Summary of the invention:
The objective of the invention is to: provide a kind of and can realize that output torque is effectively regulated, direct current machine rational in infrastructure according to loading condition.The present invention is achieved through the following technical solutions:
A kind of direct current machine comprises: rotor and stator, and the rotating shaft of rotor is provided with brush-commutated device, and stator is provided with some to magnetic pole; It is characterized in that: be wound with armature winding on the iron core of described rotor, magnetic pole is the composite pole that permanent magnet and excitation winding constitute.Because the composite pole that magnetic pole of the present invention adopts permanent magnet and excitation winding to constitute, according to M=C φ Ia, M is torque, and C is a constant, and φ is a magnetic flux, and Ia is an armature supply.The magnetic flux φ of control composite pole can make existing motor export different torques, makes motor of the present invention realize that output torque effectively regulates according to loading condition.The present invention combines the advantage of magneto and current excitation electromotor, and motor can satisfy the controllable adjustment under unsteady load, optimize the operational environment of motor, big current work when significantly reducing overload, the useful life of having improved motor, battery.
In the present invention, described composite pole is the superimposed composite pole of magnetic field of permanent magnet and excitation winding magnetic field.Direct current machine of the present invention provides magnetic field by permanent magnet when operate as normal, rotating speed of motor is steady.When load is big, be torque according to M=C φ Ia M, C is a constant, and φ is a magnetic flux, and Ia is an armature supply.By controller excitation winding is obtained, work with original magnetic field, air gap flux density moment reinforcement, motor speed significantly descends, and moment of torsion increases significantly, motor enters high pulling torque slow-speed of revolution operation immediately, this moment, current of electric descended, and running becomes steadily, has improved the motor anti-overload ability, greatly reduce the danger of burn-down of electric motor, prolonged the life-span.When motor load reduced, controller detected motor working current less than set point, the excitation winding outage, and permanent magnetic circuit work, motor recovers operate as normal.Because controller and testing circuit are prior aries, no longer describe at this.
In the present invention, be provided with permanent magnet in the magnetic pole body of described composite pole and insert the chamber, permanent magnet is installed in this insertion chamber, and the magnetic pole body is provided with excitation winding outward.Adopt said structure, permanent magnet is located in magnetic pole reliably, guarantee that the magnetic field and the excitation winding magnetic field of composite pole permanent magnet effectively superposes, be convenient to make and install.
In the present invention, the magnetic pole body is formed by stacking by some silicon steel sheets, and magnetic pole body two ends are provided with the magnetic pole cover plate, and fixture links into an integrated entity two magnetic pole cover plates and magnetic pole body.Adopt said structure, permanent magnet is located more reliable in magnetic pole, and composite pole is rational in infrastructure, and is easily manufactured.
In the present invention, be provided with drift in the described magnetic pole body and insert the chamber, securing member by drift with in the magnetic pole fixed electrical machinery housing.Adopt said structure, the magnetic pole body is fixing reliable.
Description of drawings:
Fig. 1 is existing current excitation electromotor horizontal section schematic diagram.
Fig. 2 is existing magneto horizontal section schematic diagram.
Fig. 3 is a motor longitudinal profile schematic diagram of the present invention.
Fig. 4 is a motor horizontal section schematic diagram of the present invention.
Fig. 5 is a field structure schematic diagram of the present invention.
Embodiment:
In conjunction with Fig. 3, Fig. 4, shown in Figure 5: the direct current machine of present embodiment comprises: rotor 2 and stator 1, and the rotating shaft 8 of rotor is provided with brush-commutated device 7, and stator is provided with two pairs of magnetic poles 3, and the logarithm of magnetic pole 3 can be set as requested.Be wound with armature winding 4 on the iron core of rotor, magnetic pole is the composite pole that permanent magnet 6 and excitation winding 5 constitute.Composite pole is the superimposed composite pole of magnetic field of permanent magnet and excitation winding magnetic field.Be provided with permanent magnet 6 in the magnetic pole body of composite pole and insert chamber 9, permanent magnet 6 is installed in this insertion chamber 9, and the magnetic pole body is provided with excitation winding 5 outward.The magnetic pole body is formed by stacking by some silicon steel sheets, and magnetic pole body two ends are provided with magnetic pole cover plate 10,11, and fixture 12 links into an integrated entity two magnetic pole cover plates 10 and magnetic pole body.Be provided with drift 13 in the magnetic pole body and insert chamber 14, securing member passes through drift 13 with in the magnetic pole fixed electrical machinery housing.
Because the composite pole that magnetic pole of the present invention adopts permanent magnet and excitation winding to constitute, the magnetic flux φ of control composite pole can make existing motor export different torques.Make motor of the present invention realize that output torque effectively regulates according to loading condition.When operate as normal, provide magnetic field by permanent magnet, rotating speed of motor is steady.When load is big, make excitation winding obtain electricity by controller, air gap flux density moment reinforcement, reaching motor speed significantly descends, the purpose that moment of torsion increases significantly, motor enter high pulling torque slow-speed of revolution operation immediately, and this moment, current of electric descended, running becomes steady, thereby improved the motor anti-overload ability, greatly reduced the danger of burn-down of electric motor, prolonged the life-span, reduce power consumption, improve the distance that continues of electric motor car.
Claims (5)
1, a kind of direct current machine comprises: rotor and stator, and the rotating shaft of rotor is provided with brush-commutated device, and stator is provided with some to magnetic pole; It is characterized in that: be wound with armature winding on the iron core of described rotor, magnetic pole is the composite pole that permanent magnet and excitation winding constitute.
2, direct current machine according to claim 1; It is characterized in that: described composite pole is the superimposed composite pole of magnetic field of permanent magnet and excitation winding magnetic field.
3, direct current machine according to claim 1; It is characterized in that: be provided with permanent magnet in the magnetic pole body of described composite pole and insert the chamber, permanent magnet is installed in this insertion chamber, and the magnetic pole body is provided with excitation winding outward.
4, direct current machine according to claim 3; It is characterized in that: the magnetic pole body is formed by stacking by some silicon steel sheets, and magnetic pole body two ends are provided with the magnetic pole cover plate, and fixture links into an integrated entity two magnetic pole cover plates and magnetic pole body.
5, direct current machine according to claim 3; It is characterized in that: be provided with drift in the described magnetic pole body and insert the chamber, securing member by drift with in the magnetic pole fixed electrical machinery housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100483667A CN100486082C (en) | 2005-12-31 | 2005-12-31 | DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100483667A CN100486082C (en) | 2005-12-31 | 2005-12-31 | DC motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1805250A true CN1805250A (en) | 2006-07-19 |
| CN100486082C CN100486082C (en) | 2009-05-06 |
Family
ID=36867144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100483667A Active CN100486082C (en) | 2005-12-31 | 2005-12-31 | DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100486082C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801233A (en) * | 2011-05-25 | 2012-11-28 | 马加良 | Permanent magnet and electrical excitation mixed direct-current motor |
| CN104158371A (en) * | 2013-05-14 | 2014-11-19 | 北汽福田汽车股份有限公司 | Synchronous motor and motor control system having the same and control method |
| CN105247768A (en) * | 2013-05-24 | 2016-01-13 | 马勒国际有限公司 | Electric motor, in particular for motor vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355105A (en) * | 2011-10-25 | 2012-02-15 | 王荣华 | Novel synchronous electric motor and electric motor control system |
-
2005
- 2005-12-31 CN CNB2005100483667A patent/CN100486082C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801233A (en) * | 2011-05-25 | 2012-11-28 | 马加良 | Permanent magnet and electrical excitation mixed direct-current motor |
| CN104158371A (en) * | 2013-05-14 | 2014-11-19 | 北汽福田汽车股份有限公司 | Synchronous motor and motor control system having the same and control method |
| CN105247768A (en) * | 2013-05-24 | 2016-01-13 | 马勒国际有限公司 | Electric motor, in particular for motor vehicle |
| JP2016518808A (en) * | 2013-05-24 | 2016-06-23 | マーレ インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツングＭＡＨＬＥ Ｉｎｔｅｒｎａｔｉｏｎａｌ ＧｍｂＨ | Especially electric motors for automobiles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100486082C (en) | 2009-05-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Unite Motor Co.,Ltd. Assignor: Li Jindong Contract fulfillment period: 2009.7.20 to 2025.7.19 Contract record no.: 2009330001780 Denomination of invention: Disk-type acyclic DC motor Granted publication date: 20090506 License type: Exclusive license Record date: 20090731 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.7.20 TO 2025.7.19; CHANGE OF CONTRACT Name of requester: ZHEJIANG UNITE ELECTRIC MACHINE CO., LTD. Effective date: 20090731 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160627 Address after: 321300, No. 287, Lingshi Road, Chengxi West District, Zhejiang, Yongkang Patentee after: ZHEJIANG UNITE MOTOR Co.,Ltd. Address before: No. two West West Industrial District of Yongkang City, Zhejiang province 321300 No. 18 Zhejiang unite Electrical Motor Co. Ltd. Patentee before: Li Jindong |
|
| CP03 | Change of name, title or address |
Address after: 321300 no.287, Lingshi Road, Chengxi New District, Yongkang City, Jinhua City, Zhejiang Province Patentee after: Zhejiang Unitech Electric Co.,Ltd. Address before: 321300 no.287, Lingshi Road, Chengxi New District, Yongkang City, Zhejiang Province Patentee before: ZHEJIANG UNITE MOTOR Co.,Ltd. |
|
| CP03 | Change of name, title or address |