CN100536279C - A motor dual-pole magnetic pole - Google Patents
A motor dual-pole magnetic pole Download PDFInfo
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- CN100536279C CN100536279C CNB2007100133338A CN200710013333A CN100536279C CN 100536279 C CN100536279 C CN 100536279C CN B2007100133338 A CNB2007100133338 A CN B2007100133338A CN 200710013333 A CN200710013333 A CN 200710013333A CN 100536279 C CN100536279 C CN 100536279C
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- magnetic pole
- silicon steel
- isosceles trapezoid
- pole
- orientaton
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Abstract
A two-column pole of generator, includes a magnetic pole body in which the multichip orientaton silicon steel plates are overlaied and fixed together. Each slice of orientaton silicon steel plate is produced according to the orientaton direction; each slice of orientaton silicon steel plate is divided into a big isosceles trapezoid outside segment, a rectangle middle segment and a small isosceles trapezoid inner segment according to the geometric shapes; a rectangle center hole is disposed on the rectangle middle segment of each slice of orientaton silicon steel plate; the center hole divides the middle segment of each orientaton silicon steel plate into a left middle segment and a right middle segment, wherein, a plurality of left middle segment plates are overlapped and fixed together to compose a left magnetic pole column, and a plurality of right middle segment plates are overlapped and fixed together to compose a right magnetic pole column. The two-column pole of motor not only fully and effectively uses the orientaton property of the orientaton silicon steel plate to optimize magnetoconductivity, and there is little sound and no squeal noise when the generator are runing; but also can also save copper wieres, and reduces the temperature rise of the generator.
Description
Technical field
The present invention relates to a kind of magnetic pole of motor, the dual-pole magnetic pole of a kind of motor of more specifically saying so.
Background technology
The patent No. is 200320106068.5 Smooth dynamo rotor, magnetic pole on it be by multi-disc orientation silicon steel sheet stack and be fixed together, the every one pole post magnetic pole that the orientation silicon steel sheet is made into by the orientation direction, this one pole post magnetic pole has fully effectively utilized the orientation characteristic of orientation silicon steel sheet, make the direction of orientation of the magnetic conduction direction of magnetic pole and silicon steel sheet in full accord, optimized magnetic property.With the slotless electric machines that this rotor is made, efficient obviously improves, iron loss obviously reduces, and produces the very strong noise of screaming but its drawback is a motor when operation, and environment is on every side caused noise pollution.Why motor the time produces the very strong noise of screaming in operation, is because under the magnet exciting coil effect of energising, and the magnetic line of force of the induced field that magnetic pole produced is that the density degree of utmost point metacarpus position is sharp-tooth shaped and distributes outer section of magnetic pole.
Summary of the invention
The purpose of this invention is to provide a kind of dual-pole magnetic pole that when motor moves, does not have the motor of the noise of screaming.
In order to realize above-mentioned purpose, the dual-pole magnetic pole of the motor that is provided, comprise the magnetic pole bodies that superposes and be fixed together by multi-disc orientation silicon steel sheet, every orientation silicon steel sheet is made by the orientation direction, its design feature is that every orientation silicon steel sheet is divided into outer section that is big isosceles trapezoid by geometry, rectangular stage casing and the inner segment that is little isosceles trapezoid, the interior base of big isosceles trapezoid overlaps with the rectangle adjacent side, the length of side on two bases of big isosceles trapezoid is greater than the length of side of rectangle adjacent side, the outer bottom edge of big isosceles trapezoid is the string arc, the long base of little isosceles trapezoid overlaps with the rectangle adjacent side, the long base length of side of little isosceles trapezoid equals the length of side of rectangle adjacent side, the short base of little isosceles trapezoid is curved, on the rectangular stage casing of every orientation silicon steel sheet, be provided with rectangular centre bore, this centre bore is divided into left stage casing sheet and right stage casing sheet with the stage casing of every orientation silicon steel sheet, the sheet stack of the left stage casing of multi-disc and the left magnetic pole post of formation that is fixed together, the sheet stack of the right stage casing of multi-disc and the right magnetic pole post of formation that is fixed together.
The dual-pole magnetic pole of motor provided by the present invention, when on motor, installing and using, even number of poles is installed, concrete quantity is selected according to the designing requirement of motor, both can be installed on the rotor of moving field formula motor, also can be installed on the stator of magnetostatic field formula motor, and on left magnetic pole post and right magnetic pole post, use magnet exciting coil with a kind of enamel covered wire twines respectively or suit winds in advance, the equal turn numbers of two magnet exciting coils, around to identical, these two magnet exciting coils both can be connected in series, also can be connected in parallel, for the polarity that makes adjacent pole is opposite, the magnet exciting coil of adjacent pole around to wanting opposite.
The dual-pole magnetic pole of motor provided by the present invention when on the rotor that is installed in moving field formula motor, is provided with the magnetic pole installing hole on the little isosceles trapezoid of every orientation silicon steel sheet.
By test, the dual-pole magnetic pole of this motor, under the magnet exciting coil effect of energising, the magnetic line of force of the induced field that magnetic pole produced, outer section of magnetic pole is that the density degree of utmost point metacarpus position is arch and distributes, the sine wave of the current waveform that is produced and traditional AC current matches, thereby greatly reduces the sound that motor is in operation and produces, the generation of the noise of having avoided screaming.Owing on the rectangular section of every orientation silicon steel sheet, be provided with rectangular centre bore, make the stage casing of magnetic pole form bipolar post, on this bipolar post, use and twine magnet exciting coil separately with a kind of enamel covered wire, under the identical excitation condition of number of ampere turns, can reduce the consumption of enamel covered wire, for example on the magnetic pole post of former one pole post magnetic pole, be wound with the magnet exciting coil of 100 circles, on each pole of bipolar post, only need to twine the magnet exciting coil in the same line of 50 circles footpath now, and these two magnet exciting coils are connected in series, the total number of turns that makes these two magnet exciting coils also is 100 circles, exciting current at magnet exciting coil is identical, satisfy under the identical excitation condition of number of ampere turns, because the girth of each pole of bipolar post is less than the magnetic pole post girth of former one pole post magnetic pole, so the consumption of enamel covered wire is just few, has saved copper cash.Also because the magnetic pole of bipolar post is divided into two with magnet exciting coil, the heat radiation of being more convenient for descends the temperature rise of motor.
Learn by above narration, the dual-pole magnetic pole of motor provided by the present invention, not only fully effectively utilized the orientation characteristic of orientation silicon steel sheet, make the direction of orientation of the magnetic conduction direction of magnetic pole and silicon steel sheet in full accord, optimized magnetic property, and the sound of motor when operation is little, nothing is screamed noise, can also save copper cash, reduces the temperature rise of motor.
Description of drawings
Embodiments of the invention are illustrated in conjunction with the accompanying drawings, wherein:
Fig. 1 is the front view of the dual-pole magnetic pole of the described motor of embodiment, and the arrow on figure the right is represented the direction of orientation of orientation silicon steel sheet;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is installed in epitrochanterian structural representation with dual-pole magnetic pole;
Fig. 4 is the A-A cutaway view of Fig. 3;
Fig. 5 is installed in structural representation on the stator with dual-pole magnetic pole, and the arrow on the magnetic conductive board of magnetic pole and adjacency is represented the direction of orientation of orientation silicon steel sheet therein;
Fig. 6 is outer section the density degree schematic diagram of the magnetic line of force of the induced field that produced of the former one pole post magnetic pole of motor at magnetic pole;
Fig. 7 is that the magnetic line of force of the induced field that dual-pole magnetic pole produced of motor of the present invention is at outer section density degree schematic diagram of magnetic pole.
Among the figure: 1 is big isosceles trapezoid, and 2 is rectangle, and 3 is little isosceles trapezoid, 4 is the magnetic pole installing hole, and 5 is centre bore, and 6 is left stage casing sheet, 7 is right stage casing sheet, and 8 are rotating shaft, and 9 is the magnetic pole chuck, 10 is set bolt, and 11 is magnetic conductive board, and 12 is stator case, 13 is magnet exciting coil, 14 is the magnetic line of force, and abscissa x represents the outer fragment position of magnetic pole, and ordinate y represents magnetic line of force density degree.
Embodiment
See figures.1.and.2, the dual-pole magnetic pole of the described motor of embodiment, comprise the magnetic pole bodies that superposes and be fixed together by multi-disc orientation silicon steel sheet, every orientation silicon steel sheet is made by the orientation direction, every orientation silicon steel sheet is divided into outer section that is big isosceles trapezoid 1 by geometry, rectangular 2 stage casing and the inner segment that is little isosceles trapezoid 3, the interior base of big isosceles trapezoid 1 overlaps with rectangle 2 adjacent sides, the length of side on two bases of big isosceles trapezoid 1 is greater than the length of side of rectangle 2 adjacent sides, the outer bottom edge of big isosceles trapezoid 1 is the string arc, the long base of little isosceles trapezoid 3 overlaps with rectangle 2 adjacent sides, the long base length of side of little isosceles trapezoid 3 equals the length of side of rectangle 2 adjacent sides, the short base of little isosceles trapezoid 3 is curved, on the little isosceles trapezoid 3 of every orientation silicon steel sheet, be provided with magnetic pole installing hole 4, on the stage casing of every orientation silicon steel sheet rectangular 2, be provided with rectangular centre bore 5, this centre bore 5 is divided into left stage casing sheet 6 and right stage casing sheet 7 with the stage casing of every orientation silicon steel sheet, sheet 6 stacks of the left stage casing of multi-disc and the left magnetic pole post of formation that is fixed together, sheet 7 stacks of the right stage casing of multi-disc and the right magnetic pole post of formation that is fixed together.
With reference to Fig. 3 and Fig. 4, choose four pairs of the dual-pole magnetic poles of motor of the present invention, as one group, be sleeved in the rotating shaft 8, and with about two magnetic pole chucks 9 fixing by the set bolt 10 that passes magnetic pole installing hole 4, the tight adjacency of the inner segment of adjacent pole, the magnet exciting coil of adjacent pole (not drawing among the figure) around on the contrary.For the power of expanded motor, can be in rotating shaft 8 two groups, three groups of suits or more dual-pole magnetic pole.
With reference to Fig. 5, choose four pairs of the dual-pole magnetic poles of the motor of no magnetic pole installing hole 4 of the present invention, be fixed on the stator case 12, constitute magnetic circuit with the magnetic conductive board 11 that is fixed on the stator case 12 between the adjacent pole, magnetic conductive board 11 is selected the stack of multi-disc orientation silicon steel sheet equally for use and is fixed together, and every orientation silicon steel sheet is made by the orientation direction.
With reference to Fig. 6, former one pole post magnetic pole, under the magnet exciting coil effect of energising, produce induced field, the magnetic line of force of induced field is sharp-tooth shaped in outer section density degree of magnetic pole, top centre at magnetic pole, the sine wave of the waveform of the electric current that is produced and traditional AC current differs greatly, thereby causes motor to send the ear-piercing noise of screaming when operation.
With reference to Fig. 7, adopt the dual-pole magnetic pole of motor of the present invention, under the magnet exciting coil effect of energising, produce induced field, the magnetic line of force of induced field is arch in outer section density degree of magnetic pole, the sine wave of the waveform of the electric current that is produced and traditional AC current matches, thereby greatly reduce the sound that motor is in operation and produces, the generation of the noise of having avoided screaming.
Claims (2)
1, a kind of dual-pole magnetic pole of motor, comprise the magnetic pole bodies that superposes and be fixed together by multi-disc orientation silicon steel sheet, every orientation silicon steel sheet is made by the orientation direction, it is characterized in that every orientation silicon steel sheet is divided into outer section that is big isosceles trapezoid (1) by geometry, the stage casing of rectangular (2) and the inner segment that is little isosceles trapezoid (3), the interior base of big isosceles trapezoid (1) overlaps with rectangle (2) adjacent side, the length of side on two bases of big isosceles trapezoid (1) is greater than the length of side of rectangle (2) adjacent side, the outer bottom edge of big isosceles trapezoid (1) is the string arc, the long base of little isosceles trapezoid (3) overlaps with rectangle (2) adjacent side, the long base length of side of little isosceles trapezoid (3) equals the length of side of rectangle (2) adjacent side, the short base of little isosceles trapezoid (3) is curved, on the stage casing of every orientation silicon steel sheet rectangular (2), be provided with rectangular centre bore (5), this centre bore (5) is divided into left stage casing sheet (6) and right stage casing sheet (7) with the stage casing of every orientation silicon steel sheet, multi-disc left side stage casing sheet (6) superposes and is fixed together and constitutes left magnetic pole post, and the right stage casing sheet of multi-disc (7) superposes and is fixed together and constitutes right magnetic pole post.
2, the dual-pole magnetic pole of motor according to claim 1 is characterized in that being provided with magnetic pole installing hole (4) on the little isosceles trapezoid (3) of every orientation silicon steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100133338A CN100536279C (en) | 2007-02-09 | 2007-02-09 | A motor dual-pole magnetic pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100133338A CN100536279C (en) | 2007-02-09 | 2007-02-09 | A motor dual-pole magnetic pole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101056012A CN101056012A (en) | 2007-10-17 |
| CN100536279C true CN100536279C (en) | 2009-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100133338A Expired - Fee Related CN100536279C (en) | 2007-02-09 | 2007-02-09 | A motor dual-pole magnetic pole |
Country Status (1)
| Country | Link |
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| CN (1) | CN100536279C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199505A (en) * | 2017-12-29 | 2018-06-22 | 上海英磁新能源科技有限公司 | A kind of orientation silicon steel stator core and preparation method thereof |
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2007
- 2007-02-09 CN CNB2007100133338A patent/CN100536279C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101056012A (en) | 2007-10-17 |
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Granted publication date: 20090902 Termination date: 20100209 |