CN1156954C - Electric generator excited by both electromagnet and permanent magnet - Google Patents
Electric generator excited by both electromagnet and permanent magnet Download PDFInfo
- Publication number
- CN1156954C CN1156954C CNB011295759A CN01129575A CN1156954C CN 1156954 C CN1156954 C CN 1156954C CN B011295759 A CNB011295759 A CN B011295759A CN 01129575 A CN01129575 A CN 01129575A CN 1156954 C CN1156954 C CN 1156954C
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- permanent magnet
- double wedge
- pole
- generator
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- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The present invention relates to an excitation generator combined with electromagnetic and permanent magnetism. A plurality of equispaced convex teeth, the adjacent convex teeth [of which] are two polar distances apart, are arranged on the surface of rotors which are in the face of an air gap, and permanent magnets with the same magnetic pole are arranged between the convex teeth. Electromagnet exciting coils are arranged on each convex tooth. The voltage regulation of generators can be achieved when the main magnetic flux psi generated by the permanent magnet are superimposed with (+/-) delta psi generated by the electromagnet excitation coils at the time of supply power by the direct current supply with the variation of positive amplitude and negative amplitude. The generator of the invention has solved the problem that the permanent-magnet generators cannot adjust the voltage, and therefore, the voltage regulating device of the power circuit is dispensed with, which is not only expensive and high-loss but also works unreliably.
Description
The present invention relates to permanent magnet generator, more particularly, include the permanent magnet generator of electromagnetism excited by both.
Existing permanent magnet generator can't be regulated automatically because the magnetic flux itself that permanent magnet produces can not be adjusted, and the voltage that sends under the situation of power fluctuation also fluctuates, and causes terminal voltage to reduce by the generator loading increasing and also can't compensate voluntarily.In order to solve the generating voltage instability problem, conventional way is by the sub-device of outer distribution, utilizes the negative feedback electronic circuit to solve, and the consume of this solution is big, cost is many, and is fragile and regulation loop inertia is big, and degree of regulation is low, uses inconvenience.
The architecture advances that the purpose of this invention is to provide a kind of permanent magnet generator forms the generator of permanent-magnetism electromagnetic excited by both, can pressure regulation or voltage stabilizing, have low value, characteristics solid, easy to use.
The object of the invention reaches by the following technical programs:
A kind of generator of excited by both electromagnet and permanent magnet, have armature portion and excitatory part, it is characterized in that on the described excitatory part magnetic conductor surface relative with described armature by air gap, each is to there being a double wedge in the pole span, the width of each described double wedge flank of tooth is less than a pole span, on described each double wedge, be wound with equal turn numbers respectively and around encouraging coil to identical electromagnetism magnetic, the coil of each described double wedge is connected mutually and/or is drawn out to when described excitatory part is outer to be connected with power supply with being connected in parallel, and the crest top land of whole described double wedges presents identical polar; Be provided with permanent magnet in the formed groove respectively between each adjacent described double wedge, the pole-face of described permanent magnet equates with the face width of tooth of described double wedge, and each described permanent magnet to magnetization, and is made the polarity unanimity of described permanent magnet pole-face by the width of cloth.
This generator has kept permanent magnet generator engine efficiency height, little, solid, the reliable advantage of heating, but make generator possess the performance of pressure regulation after adding electric excitation, than the way of establishing regulator at generator output end, that is individual governing loop in motor circuit, power is big, expensive, the poor reliability of device, and generator of the present invention is the governing loop in the field circuit, exciting power than full excitation is much smaller, and can loss of excitation, can not cause the motor decompression because of strengthening electric current or overload suddenly.Power consumption is little, cost is low, reliable, easy and simple to handle.
Fig. 1 is the motor partial cutaway schematic of expression first embodiment of the invention.
Fig. 2 is the motor partial cutaway schematic of expression second embodiment of the invention.
Describe embodiment in detail below with reference to accompanying drawing, thus can clearer understanding design of the present invention and advantage.
Fig. 1 is the partial cutaway schematic of expression first embodiment of the invention motor, and in this example, excitatory part 1 is the internal rotor of generator, and its outer generator armature part of placing is a stator 4.11 is magnetic conductor in the excitatory part among Fig. 1, and a plurality of double wedges 12 are offered in the face of stator in its outer round surface trapping crack on the rotor outer circumference surface, and the tooth pitch of double wedge 12 equals a pair of pole span of generator, and face width of tooth is less than half of tooth pitch.On all double wedges 12, be wound with electromagnetism magnet exciting coil 2, electromagnetism magnet exciting coil 2 on each tooth mutually series connection and/or and be unified into the electromagnetism excitation winding, i.e. series connection or in parallel mutually mutually, or the coil of several utmost points is connected into one group, the mutual series/parallel of several coil groups, electromagnetism excitation winding line end is drawn outside the excitatory part, by can forward and reverse luffing DC power supply or short circuit.Establish a permanent magnet 3 in the groove between every adjacent two double wedges, its pole-face width equates with double wedge end face width, and the width of cloth is to magnetization, all permanent magnets face on the end of power generator air gap be the polarity unanimity.
The armature portion of generator is by establishing the teeth groove structure usually like that, the embedded discharge pivot of groove winding, and experimental study finds, the number of teeth is being 2 or 3 better in every pole span on the armature of this routine generator.
During the generator operation of present embodiment, do not power as the electromagnetism excitation winding, all double wedges will become the closed magnetic circuit of permanent magnet 3 magnetic fluxs and present unlike pole with permanent magnet, send voltage V on the armature winding.On the electromagnetism excitation winding, be provided with the plus or minus direct voltage, producing the electromagnetism excitation accordingly leads to ± Δ φ, being superimposed upon and making main flux become φ ± Δ φ on the permanent magnet flux φ, is that V ± Δ V has constituted the adjusting to generator voltage thereby make armature winding bring out existing voltage.When any situation that causes V numerical value to change takes place, control the variation of electromagnetism excitation power supply accordingly, produce adapt ± Δ V, make V ± Δ V=constant, just can voltage stabilizing, perhaps V ± Δ V=ormal weight obtains the result of pressure regulation.
The power supply source of electromagnetism excitation winding can belong to ripe content as for the control method to this power supply in the prior art by obtaining after the generator voltage rectification, repeats no more.
Fig. 2 represents second embodiment of the invention generator part sectioned view.It is the distortion of first embodiment, and different piece only is the shape of cross section of double wedge 12.All still use identical label with the identical part of first example, and no longer are repeated in this description.Present embodiment barrel shaped tooth top forms pole shoe part 13, and its width of tooth magnetic Yoke below the pole shoe is less than the width of pole shoe part.Such double wedge planform, evidence are improved motor performance.
Embodiments of the invention illustrate, but should not be limited to this, and this area mean level technical staff can modify it and change in view of the above, and these modifications and change are still within design scope of the present invention.
Claims (5)
1. the generator of an excited by both electromagnet and permanent magnet, have armature portion and excitatory part, it is characterized in that on the described excitatory part magnetic conductor surface relative with described armature by air gap, each is to there being a double wedge in the pole span, the width of each described double wedge flank of tooth is less than a pole span, on described each double wedge, be wound with equal turn numbers respectively and around encouraging coil to identical electromagnetism magnetic, the coil of each described double wedge is connected mutually and/or is drawn out to when described excitatory part is outer to be connected with power supply with being connected in parallel, and the crest top land of whole described double wedges presents identical polar; Be provided with permanent magnet in the formed groove respectively between each adjacent described double wedge, the pole-face of described permanent magnet equates with the face width of tooth of described double wedge, and each described permanent magnet to magnetization, and is made the polarity unanimity of described permanent magnet pole-face by the width of cloth.
2. generator according to claim 1, the crest top land that it is characterized in that described double wedge is the pole shoe part, the width of the tooth magnetic Yoke part that described pole shoe is following is less than the width of pole shoe part.
3. generator according to claim 1 and 2, it is characterized in that to described electromagnetism strive forward magnetic coil end of drawing outside the excitatory part supply with can positive and negative luffing direct current or short circuit.
4. generator according to claim 1 and 2 is characterized in that described armature portion sets up the teeth groove structure separately, sets armature winding in the groove; Set armature projection number is 2 or 3 in the pole span.
5. generator according to claim 4, it is characterized in that to described electromagnetism strive forward magnetic coil end of drawing outside the excitatory part supply with can positive and negative luffing direct current or short circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011295759A CN1156954C (en) | 2001-06-28 | 2001-06-28 | Electric generator excited by both electromagnet and permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011295759A CN1156954C (en) | 2001-06-28 | 2001-06-28 | Electric generator excited by both electromagnet and permanent magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1393974A CN1393974A (en) | 2003-01-29 |
| CN1156954C true CN1156954C (en) | 2004-07-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011295759A Expired - Fee Related CN1156954C (en) | 2001-06-28 | 2001-06-28 | Electric generator excited by both electromagnet and permanent magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1156954C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385778C (en) * | 2003-12-11 | 2008-04-30 | 泰豪科技股份有限公司 | Mictomagnetism dual voltage medium frequency brushless synchronous generator |
| KR20100068387A (en) | 2007-08-14 | 2010-06-23 | 강 리우 | A generator with magnetic-path-enclosing coils |
| US8810103B2 (en) | 2007-08-14 | 2014-08-19 | Gang Liu | Conductive wire unit and generator with closed magnetic path |
| CN101399475B (en) * | 2007-09-28 | 2012-05-02 | 豪柏国际(马达)集团有限公司 | Brushless motor and manufacturing method thereof |
| CN102545508A (en) * | 2010-12-08 | 2012-07-04 | 余虹锦 | Permanent magnetic brush synchronous alternating-current generator adopting hybrid excitation manner |
| CN105337433A (en) * | 2014-08-11 | 2016-02-17 | 马力 | Multi-polar permanent-magnet motor pole core structure |
-
2001
- 2001-06-28 CN CNB011295759A patent/CN1156954C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1393974A (en) | 2003-01-29 |
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Effective date of registration: 20090320 Address after: Beijing Xizhimen No. 170 South Street No. 401 zip code: 100035 Patentee after: Duan Miheng Address before: Beijing City, Haidian District Zhongguancun Road No. 89 building 13F Hengxing zip code: 100080 Co-patentee before: Xiao Xinghua Patentee before: Bai He Bin Co-patentee before: Peng Pingxuan |
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| ASS | Succession or assignment of patent right |
Owner name: DUAN DUANHENG Free format text: FORMER OWNER: BAI HEBIN Effective date: 20090320 |
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| ASS | Succession or assignment of patent right |
Owner name: BEIJING AOPHIP NEW ELECTRICAL MACHINE TECHNOLOGY C Free format text: FORMER OWNER: DUAN DUANHENG Effective date: 20100622 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20100622 Address after: Beijing Xizhimen Street No. 170 South 401 Patentee after: The new Beijing General Motor Technology Co Ltd Address before: 100035 Beijing Xizhimen No. 170 South Street No. 401 Patentee before: Duan Miheng |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040707 Termination date: 20130628 |