CN101626188B - Motor, motor stator and chip of motor stator - Google Patents
Motor, motor stator and chip of motor stator Download PDFInfo
- Publication number
- CN101626188B CN101626188B CN2008100684388A CN200810068438A CN101626188B CN 101626188 B CN101626188 B CN 101626188B CN 2008100684388 A CN2008100684388 A CN 2008100684388A CN 200810068438 A CN200810068438 A CN 200810068438A CN 101626188 B CN101626188 B CN 101626188B
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- stator
- motor
- excitation winding
- pole
- rotor
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Abstract
The invention provides a motor, which comprises a stator and a rotor arranged in the stator, wherein the stator comprises a yoke part, an exciting winding wound on the yoke part, and two non-salient poles formed at the two ends of the yoke part; each pole is provided with a pole face facing the rotor and a plurality of magnetic flux barriers mutually separated; when the magnetic flux barriers are closer, intervals of the exciting winding are smaller, so that a difference value between the magnetic resistance of parts of the non-salient poles close to the exciting winding and the magnetic resistance of parts of the non-salient poles far from the exciting winding can be reduced to enable magnetic lines of force generated when the exciting winding is electrified to relatively evenly pass through the pole faces and the rotor. The invention also provides a motor rotor and a chip of the motor stator.
Description
Technical field
The invention belongs to machine field, relate in particular to a kind of stator and stator chip structure of motor.
Background technology
Single-phase series motor is also claimed general-purpose machine, is the monophase machine of the armature winding of band commutator through brush and stator excitation windings in series, is type the most frequently used in the AC commutator machine.This kind motor is because rotating speed is high, volume is little, in light weight, detent torque is big, speed governing is convenient; Has the series excitation characteristic; Be usually used in medicine equipment, electric tool, household appliance etc. and need the driving of high speed, little, the lightweight small-power apparatus of volume, as: agitator for food-making, dust catcher, domestic sewing machine, electric drill, electric mill and other portable electric tools.
Single-phase series motor can be divided into salient pole type single-phase series motor and hidden pole type single-phase series motor according to stator structure.Usually, the stator core of hidden pole type single-phase series motor laminates into hidden pole type by punching silicon-steel, and excitation winding is wound in the yoke portion of stator.Yet; In existing hidden pole type single-phase series motor; Since non-salient pole near the magnetic resistance of the part of excitation winding relatively less than magnetic resistance away from the part of excitation winding, thereby make through rotor near the density of line of magnetic force of the part of excitation winding relatively greater than density of line of magnetic force away from the part of excitation winding, thereby cause the motor commutation effect relatively poor; Spark is bigger, influences electrical machinery life.
Summary of the invention
In order to solve the problems of the technologies described above; The present invention provides a kind of motor; Comprise stator and be installed in the rotor in the stator, said stator comprises yoke portion, be wound in the excitation winding in the said yoke portion and be formed at the two poles of the earth at yoke portion two ends, and each utmost point is formed with a pole-face towards rotor; Each is formed with the magnetic flux barrier of some spaces on extremely; Said magnetic flux barrier is at interval more little the closer to excitation winding, thus can reduce the two poles of the earth near the magnetic resistance of the part of excitation winding and difference, so that the magnetic line of force that excitation winding energising back produces is relatively equably through pole-face and rotor away from the magnetic resistance of the part of excitation winding.
The present invention also provides a kind of motor stator; Comprise yoke portion, be wound in the excitation winding in the said yoke portion and be formed at the two poles of the earth at yoke portion two ends; Each utmost point is formed with a pole-face; Each is formed with the magnetic flux barrier of some spaces on extremely; Said magnetic flux barrier is at interval more little the closer to excitation winding, thus can reduce non-salient pole near the magnetic resistance of the part of excitation winding and difference, so that the magnetic line of force that excitation winding energising back produces passes through pole-face relatively equably away from the magnetic resistance of the part of excitation winding.
The present invention also provides a kind of motor stator chip; Comprise both ends, reach the U-shaped connecting portion that connects both ends; Each end is formed with an arc inner fovea part; The arc inner fovea part at both ends is intervally installed, and also is formed with the perforate of some spaces on each end, and said perforate is more little at interval the closer to connecting portion.
The beneficial effect that embodiment that the present invention lifts has is: because the magnetic flux barrier that is formed on stator the two poles of the earth is close more the closer to the excitation winding arrangement, thereby can make the magnetic line of force more equably through pole-face and rotor.
Description of drawings
Fig. 1 is that the motor that provides of one embodiment of the invention is along its axial side-looking structural representation.
Embodiment
In order to make technical problem to be solved of the present invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
See also Fig. 1, the general-purpose machine 10 that one embodiment of the invention provides comprises stator 20 and rotor 50.Said stator 20 comprises the stator core that axially is overrided to form along rotor 50 by most identical shaped chips 30, and is wound in the excitation winding 40 in the said stator core.Each chip 30 comprises both ends 32 and connects the U-shaped connecting portion 34 at both ends 32; Each end 32 is formed with an inner fovea part 32a; 32 common the two poles of the earth that form stator, both ends of said chip, the U-shaped connecting portion 34 common yoke portions that form stator, common two the arc pole-faces that form of inner fovea part 32a towards rotor 50; And rotor 50 is surrounded between said two pole-faces; Each is formed with some magnetic flux barriers on extremely, and said some magnetic flux barriers distribute close more the closer to excitation winding 40, thereby can make the magnetic line of force that excitation winding 40 energising backs produce more equably through pole-face and rotor 50.
In the present embodiment; Two non-salient poles very of said stator 20; Said some magnetic flux barriers are some round hole 34b that are opened in the space on the chip; Said perforate 34b arranges and arranges promptly close more the closer to excitation winding 40 along periphery of rotor: more little at interval, the perforate 34b of the chip 30 that piles up each other is common to form some grooves that axially run through stator core along parallel rotor.Alternatively, said perforate 34b can also be oval or other are streamlined, as long as perforate is towards basically along the trend of the magnetic line of force.Preferably, the basically identical that moves towards of said perforate 34b near the line of the end of inner fovea part 34a and inner fovea part.
Said rotor 50 comprises that several teeth 52 and several are positioned at the groove 54 between adjacent teeth, is wound with coil windings 56 (only showing two among the figure) on each tooth 52, and said coil windings 56 is electrically connected with said excitation winding 40.
In the invention described above embodiment; The groove that is opened on stator 20 the two poles of the earth forms the magnetic flux barrier; And it is close more to arrange the closer to excitation winding 40; Thereby can reduce non-salient pole near the magnetic resistance of the part of excitation winding and difference away from the magnetic resistance of the part of excitation winding, make the magnetic line of force that excitation winding 40 energising backs produce more equably through pole-face and rotor 50, thereby can make rotor motion steady relatively.
In foregoing invention embodiment; The above is merely preferred embodiment of the present invention; Not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. motor; Comprise stator and be installed in the rotor in the stator; Said stator comprises yoke portion, be wound in the excitation winding in the said yoke portion and be formed at the two poles of the earth at yoke portion two ends; Each utmost point is formed with a pole-face towards rotor, it is characterized in that: each is formed with the magnetic flux barrier of some spaces on extremely, and said magnetic flux barrier is more little at interval the closer to excitation winding; Thereby can reduce the two poles of the earth near the magnetic resistance of the part of excitation winding and difference, so that the magnetic line of force that excitation winding energising back produces is relatively equably through pole-face and rotor away from the magnetic resistance of the part of excitation winding.
2. motor as claimed in claim 1 is characterized in that: said some magnetic flux barriers are some grooves that axially run through stator along parallel rotor.
3. motor as claimed in claim 2 is characterized in that: the cross section of said groove is streamlined.
4. motor as claimed in claim 2 is characterized in that: the cross section of said groove is for circular.
5. like claim 3 or 4 described motors, it is characterized in that: the basically identical that moves towards near the trend of the line of an end of pole-face and pole-face of said groove.
6. motor as claimed in claim 5 is characterized in that: said motor is the hidden pole type single-phase series motor, and said rotor comprises that coil windings is electrically connected with the excitation winding of said stator.
7. motor stator; Comprise yoke portion, be wound in the excitation winding in the said yoke portion and be formed at two non-salient poles at yoke portion two ends; Each utmost point is formed with a pole-face; It is characterized in that: each is formed with the magnetic flux barrier of some spaces on extremely; Said magnetic flux barrier is at interval more little the closer to excitation winding, thus can reduce non-salient pole near the magnetic resistance of the part of excitation winding and difference, so that the magnetic line of force that excitation winding energising back produces passes through pole-face relatively equably away from the magnetic resistance of the part of excitation winding.
8. motor stator as claimed in claim 7 is characterized in that: said some magnetic flux barriers are some grooves that run through stator, and the cross section of said groove is streamlined.
9. motor stator as claimed in claim 7 is characterized in that: said some magnetic flux barriers are some grooves that run through stator, and the cross section of said groove is circular.
10. motor stator as claimed in claim 8 is characterized in that: the basically identical that moves towards near the trend of the line of an end of pole-face and pole-face of said some grooves.
11. motor stator chip; Comprise both ends, reach the U-shaped connecting portion that connects both ends; Each end is formed with an arc inner fovea part; It is characterized in that: the arc inner fovea part at both ends is intervally installed, and also is formed with the perforate of some spaces on each end, and said perforate is more little at interval the closer to connecting portion.
12. motor stator chip as claimed in claim 11 is characterized in that: said perforate is streamlined.
13., it is characterized in that like claim 11 or 12 described motor stator chips: said plurality of opening near the trend of the line of an end of inner fovea part and the circumferential basically identical of inner fovea part.
14. motor stator chip as claimed in claim 11 is characterized in that, said perforate is circular.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100684388A CN101626188B (en) | 2008-07-09 | 2008-07-09 | Motor, motor stator and chip of motor stator |
| DE102009024910A DE102009024910A1 (en) | 2008-06-16 | 2009-06-15 | electric motor |
| US12/485,126 US8405273B2 (en) | 2008-06-16 | 2009-06-16 | Electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100684388A CN101626188B (en) | 2008-07-09 | 2008-07-09 | Motor, motor stator and chip of motor stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101626188A CN101626188A (en) | 2010-01-13 |
| CN101626188B true CN101626188B (en) | 2012-11-07 |
Family
ID=41521905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100684388A Expired - Fee Related CN101626188B (en) | 2008-06-16 | 2008-07-09 | Motor, motor stator and chip of motor stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101626188B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013209713A1 (en) * | 2013-05-24 | 2014-11-27 | Mahle International Gmbh | Electric motor, in particular for a motor vehicle |
| KR102077593B1 (en) * | 2017-04-05 | 2020-02-17 | 미쓰비시덴키 가부시키가이샤 | Stator core piece and rotary electric machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2340052A (en) * | 1942-05-18 | 1944-01-25 | Warren G Grimes | Electric motor brake |
| US2601517A (en) * | 1949-11-01 | 1952-06-24 | Dorothy C Hammes | Synchronous motor |
| US3983621A (en) * | 1974-10-21 | 1976-10-05 | General Electric Company | Methods of making fractional horsepower motors |
-
2008
- 2008-07-09 CN CN2008100684388A patent/CN101626188B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2340052A (en) * | 1942-05-18 | 1944-01-25 | Warren G Grimes | Electric motor brake |
| US2601517A (en) * | 1949-11-01 | 1952-06-24 | Dorothy C Hammes | Synchronous motor |
| US3983621A (en) * | 1974-10-21 | 1976-10-05 | General Electric Company | Methods of making fractional horsepower motors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101626188A (en) | 2010-01-13 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20121107 Termination date: 20180709 |
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| CF01 | Termination of patent right due to non-payment of annual fee |