CN1034099A - Dc motor with rotating magnetic field stator - Google Patents
Dc motor with rotating magnetic field stator Download PDFInfo
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- CN1034099A CN1034099A CN 88100101 CN88100101A CN1034099A CN 1034099 A CN1034099 A CN 1034099A CN 88100101 CN88100101 CN 88100101 CN 88100101 A CN88100101 A CN 88100101A CN 1034099 A CN1034099 A CN 1034099A
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- motor
- stator
- magnetic field
- operating state
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Abstract
A kind of DC motor with rotating magnetic field stator is made of the stator that comprises field winding, p-m rotor, brush, commutator and diode rectifier etc.Being specially adapted to various direct current drive vehicles uses.In vehicle ', the induced current of the easy formation electric spark that produces in the winding in the time of motor being worked is sent power supply back to by diode rectifier.As the motor input terminals open circuit, utilize the inertia of vehicle ', motor will enter the generator operating state automatically.Compare with other DC motor of equal-wattage, but saves energy more than 40% does not still comprise when changing the generator operating state over to by the motor operating state electric energy to power supply provided.
Description
The present invention relates to a kind of DC motor, refer more particularly to a kind of DC motor with rotating magnetic field stator.
The DC motor of prior art, complex structure, efficient is low, and noise is big, and the various brushless DC motors that new development is got up, because its numerous and diverse electronic servo circuit, the scope of application is restricted.
The objective of the invention is to provides a kind of simple in structure, functional to society, can do DC motor, can make the efficient energy-saving dc motor that generator uses again.
The DC motor with rotating magnetic field stator that the present invention mentioned; Constitute by the stator that comprises field winding, p-m rotor, commutator, brush and diode rectifier etc.
The DC motor with rotating magnetic field stator that the present invention mentioned is compared with the DC motor of prior art, and advantage is as follows; Simple in structure, noise is low, efficient is high, the life-span is long, need not change any structure and annex, can convert the generator operating state to by the motor operating state easily, by it is the induced current that causes electric spark in can the DC motor with prior art, sends power supply back to through the switch that is constituted by a diode.
Solution of the present invention can describe in detail further combined with accompanying drawing.
A partly is the diode rectification device among the figure, and it plays the effect of electronics switch pass when the motor operating state, with the induced current that produces in the stator winding, send power supply back to.Play the rectifier effect during generator operating state,, after rectification, send power supply back to the electric current that produces.
B partly is by stator core among the figure, field winding, the motor body part that p-m rotor etc. are formed.
C partly is the reversing arrangement that rotates synchronously with rotor among the figure, is made up of brush and commutator, and its effect is to connect and cut off the electric current of transporting to stator winding successively, and to form the rotating magnetic field of stator, the oblique line district among the figure is the current-carrying part of commutator.
When the DC motor with rotating magnetic field stator that present technique provided is illustrated, for the sake of simplicity, intend selecting for use the simplest three-phase semiwave (unipolarity) operational mode.As shown in the figure; When mains switch K was closed, the S utmost point of rotor Z was in the prominent utmost point T with stator DZ
3Relative position, brush D
1With the sliding contact of commutator H conducting position, make electric current flow into stator field winding L
1, the stator DZ utmost point T that dashes forward
1By excitatory, to N utmost point generation effect, then the S utmost point of rotor Z rotates in a direction indicated by the arrow, and with prominent utmost point T
1Relatively.Simultaneously, conducting position and the brush D of the commutator H that rotates synchronously with rotor Z
2Contact, the result, electric current flows into winding L
2, the stator utmost point T that dashes forward
2By excitatory, thereby to the N utmost point generation effect of rotor, then the S utmost point of rotor Z rotates towards direction shown in the arrow again, causes and prominent utmost point T
2Relatively.At this moment, the conducting position of commutator H and brush D
3Contact, make electric current flow into stator field winding L
3, the stator utmost point T that dashes forward
3Be subjected to excitatory, so to rotor N utmost point generation effect, the S utmost point instant of rotor Z does not stop, by prominent utmost point T
2Towards T
3Rotate.Carry out this process repeatedly, the rotor Z of motor has just rotated continuously.
When the stator field winding of motor, with the control of the commutator of rotor rotation synchronously and brush sliding contact under, connect and cut off electric current successively, owing to there is inductance in winding, is cut off in the winding of electric current and still has current flowing.In the DC motor of known technology, the induced potential that this electric current produces is the reason that forms spark crowd and noise.And in technology provided by the present invention, because the existence of rectifier diode, when this induced potential voltage was higher than supply voltage, diode was just as an electronic switch and conducting, for this induced potential provides a path that flows back to power supply.So, neither have electric spark and produce, saved the energy again.
When the power input K switch of the DC motor with rotating magnetic field stator that present technique provided was opened a way, the effect of inertia or external force made p-m rotor continue rotation.At this moment, because the magnetic field intercepts stator winding of rotation, induction has produced electric current in winding.Because the structure of this motor makes this electric current and does not pass through brush, and can directly obtain from coil.The electric current in every winding, the rectifier of forming by diode is superimposed, and sends power supply back to.At this moment, just by the motor operating state, enter the generator operating state automatically.
DC motor with rotating magnetic field stator provided by the present invention, energy-efficient, simple structure, function admirable.The motor stator winding can be designed to unipolarity or multipolarity as required, concentrates or distributed winding.The manufacturing of rotor can be adopted the form of the constant magnetic pole of permanent magnetism or dc magnetizing.With the synchronous commutator of rotation of rotor, both can with the black fault of the oil haze deep blue dust assorted Yun of portion's tip Ning quilt tritium deep blue; A kind of scorpion send the elaborate heavy stone used as an anchor Dong of vexed clear strand sword latitude tip Huan shed baby teeth the black fault of lazy ⒉ chaff frame U shelf not smoothgoing stop to send sprout the Wei whirlpool and ask to fall and receive the peppery wave of ⑷ group's leg calabash shell serving as a dipper ⒑ amaranth aster hair on the neck bucktooth green pepper and pull out the Rolling shoulder blade Pi capsule toad 5 ⒛ ゲ that hangs and hold back nurse peaceful ┮ arm and change the black tomb of Sheng postscript bright-coloured ぷ sole coin neck Wen and deceive Jin and warn the whence and simmer taro
DC motor with rotating magnetic field stator provided by the present invention, of many uses, be specially adapted to various direct current drive vehicles and boats and ships.The motor of present technique is compared with other DC motor with power, can reduce electric energy loss more than 40%, does not wherein still comprise when changing the generator operating state over to by the motor operating state electric energy to power supply provided.
Claims (1)
- A kind of DC motor with rotating magnetic field stator, by the stator that comprises field winding, p-m rotor, brush, commutator, and diode rectifier etc. constitute, it is characterized in that;With the sliding contact of synchronous operated commutator of rotor and brush, the direct current of input is distributed to each phase stator field winding successively, produced rotational stator magnetic field thus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88100101 CN1034099A (en) | 1988-01-05 | 1988-01-05 | Dc motor with rotating magnetic field stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88100101 CN1034099A (en) | 1988-01-05 | 1988-01-05 | Dc motor with rotating magnetic field stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1034099A true CN1034099A (en) | 1989-07-19 |
Family
ID=4831174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88100101 Pending CN1034099A (en) | 1988-01-05 | 1988-01-05 | Dc motor with rotating magnetic field stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034099A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166413A (en) * | 2011-12-12 | 2013-06-19 | 德昌电机(深圳)有限公司 | Built-in type permanent magnet direct current motor |
| US9142930B2 (en) | 2011-06-30 | 2015-09-22 | Johnson Electric S.A. | Electric motor with spark suppression circuit |
-
1988
- 1988-01-05 CN CN 88100101 patent/CN1034099A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9142930B2 (en) | 2011-06-30 | 2015-09-22 | Johnson Electric S.A. | Electric motor with spark suppression circuit |
| CN103166413A (en) * | 2011-12-12 | 2013-06-19 | 德昌电机(深圳)有限公司 | Built-in type permanent magnet direct current motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |