CN102624180A - Concentrated-winding permanent-magnetic synchronous motor - Google Patents
Concentrated-winding permanent-magnetic synchronous motor Download PDFInfo
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- CN102624180A CN102624180A CN201210111441XA CN201210111441A CN102624180A CN 102624180 A CN102624180 A CN 102624180A CN 201210111441X A CN201210111441X A CN 201210111441XA CN 201210111441 A CN201210111441 A CN 201210111441A CN 102624180 A CN102624180 A CN 102624180A
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- synchronous motor
- magnetic conduction
- permagnetic synchronous
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- 238000004804 winding Methods 0.000 title claims abstract description 43
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000004080 punching Methods 0.000 claims description 32
- 238000005096 rolling process Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 5
- 230000004907 flux Effects 0.000 abstract description 5
- 230000016507 interphase Effects 0.000 abstract 2
- 238000010030 laminating Methods 0.000 abstract 1
- 230000035772 mutation Effects 0.000 abstract 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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Abstract
The invention relates to a concentrated-winding permanent-magnetic synchronous motor, which comprises a stator and a rotor, wherein the stator comprises a stator iron core and a concentrated-type winding, the stator iron core is formed by laminating magnetic conduction stamped sheets with a plurality of teeth, and the rotor comprises a rotor iron core and magnetic steel; and the ratio of the tooth number of the magnetic conduction stamped sheets and the pole number of the stator is 1.5. An inner circle of each tooth on the stator is designed in a shape to be eccentric to an outer circle of the rotor, and a non-uniform gap is formed between the rotor and the stator, so that the gap flux density at the inner side of the stator is distributed in a sinusoidal way, and when the rotor rotates, the stator windings are coupled with one another to form a counter potential with good sinusoidal. Meanwhile, the inter-phase magneto-resistance of the motor stator is increased, the inter-phase leakage reactance is reduced, the power factor of the motor and the peak power of a depth weak magnetic field can be improved, the mutation degree of the flux density among different teeth of the motor can be slowed down, and the toothed slot torque and noise of the motor can be reduced.
Description
Technical field:
The present invention relates to electricity field, relate in particular to permagnetic synchronous motor, the embedded permagnetic synchronous motor of particularly a kind of concentrated winding.
Background technology:
In the type of permagnetic synchronous motor; Conventional concentrated winding permagnetic synchronous motor is in order to obtain the counter potential waveform that possesses good sine property; With the rotor design of motor is even air gap; Caused the loss of three aspects like this: uneven rotor has produced windage loss when high speed rotating on the one hand, can produce the loss of can not ignore if be used under compressor of air conditioner and the oil cooling environment; On the other hand, for powerful permagnetic synchronous motor, when adopting the rotor of interior permanent magnets, the non-homogeneous kind of air-gap design of rotor makes hands over axial air gap size to increase, and has reduced the magnetic resistance moment component and the power density of motor; The third aspect when higher weak magnetic multiple drives, can not avoid stator to pass through the direct leakage reactance of rotor surface,, power descends fast, and mechanical property is soft.
Summary of the invention:
The object of the present invention is to provide a kind of concentrated winding permagnetic synchronous motor, described this concentrated winding permagnetic synchronous motor will solve the technical problem that windage loss, magnetic resistance moment and power density are low, mechanical property is soft of the even air gap design existence of concentrated winding permanent-magnetic synchronous motor rotor of the prior art.
A kind of concentrated winding permagnetic synchronous motor of the present invention; Comprise stator and rotor; Described stator comprises stator core and centralized winding, and described rotor comprises rotor core and magnet steel, wherein; Described stator core has the magnetic conduction punching of plurality of pins to build up by dashing, and the number of teeth in the described magnetic conduction punching is 1:1.5 with the ratio of the number of poles of rotor.
Further, described centralized winding is three phase windings.
Further, described rotor is provided with magnet.
Further, described rotor is inside rolling hitch structure or outside clinch structure.
Further; Described rotor is arranged in the described stator; Rotor is concentric with the cylindrical of stator, is provided with the gap between the cylindrical of rotor and the stator, is provided with the breach of two above numbers in any described magnetic conduction punching; Described breach is distributed in the magnetic conduction punching with along the circumferential direction waiting radian; After a plurality of magnetic conduction punchings were overlapping vertically, the breach in the magnetic conduction punching constituted the groove in the stator core inwall, and breach all is opened on the inboard of magnetic conduction punching; Part between any two adjacent openings all is profile of tooth; The inside edge at the middle part of any parts of tooth all is positioned on one first circumference, and the cylindrical of described first circumference and rotor or stator concentric also maintains the gap with the cylindrical of rotor, and the inside edge at a tip of any parts of tooth all is positioned at beyond described first circumference and with first circumference and maintains the gap.
Further, described winding coil is for concentrating winding configuration.
Further, mount or be embedded with permanent magnet in the described rotor.
Further, the inside edge of any parts of tooth all is positioned on the tooth circular arc separately, the axle center that rotor is all departed from the center of circle of circular arc in any described tooth.
Further, inwall unshakable in one's determination is continuous wavy surface circumferential.
Further, the maximal clearance between the inside edge of any magnetic conduction punching and the rotor cylindrical is 1.5～1.8 to 1 with the ratio of minimum clearance.
Operation principle of the present invention is: the gap between rotor and the inwall unshakable in one's determination forms air gap; Adopt non-homogeneous air gap between rotor and the inwall unshakable in one's determination; Can make the inboard air gap flux density Sine distribution of stator, when the stator winding of rotor rotary motor with the sinusoidal good back-emf that is coupled out.The air gap size of punching notch has increased the alternate magnetic resistance of motor stator greater than the size of punching tooth, effectively reduces alternate leakage reactance, has effectively improved the power factor of motor and the peak power of the weak magnetic of the degree of depth.The close sudden change degree of magnetic of motor tooth interpolar that uneven air gap is mild has reduced the teeth groove moment and the noise of motor.
The present invention and prior art are compared, and its effect is actively with tangible.The present invention adopts non-homogeneous air gap between the rotor of concentrating the winding permagnetic synchronous motor and inwall unshakable in one's determination, make the inboard air gap flux density Sine distribution of stator, during the rotor rotation, and the stator winding of the motor good back-emf of sine that is coupled out.The air gap size of punching notch has increased the alternate magnetic resistance of motor stator greater than the size of punching tooth, effectively reduces alternate leakage reactance, has effectively improved the power factor of motor and the peak power of the weak magnetic of the degree of depth.The close sudden change degree of magnetic of motor tooth interpolar that uneven air gap is mild has reduced the teeth groove moment and the noise of motor.
Description of drawings:
Fig. 1 is the stator core sketch map in a kind of concentrated winding permagnetic synchronous motor of the present invention.
Fig. 2 is the local zoomed-in view of A among Fig. 1.
Fig. 3 is another sketch map of the stator iron in a kind of concentrated winding permagnetic synchronous motor of the present invention.
Embodiment:
Embodiment 1:
Like Fig. 1, Fig. 2 and shown in Figure 3; A kind of concentrated winding permagnetic synchronous motor of the present invention comprises stator and rotor, and described stator comprises stator core and centralized winding; Described rotor comprises rotor core and magnet steel; Wherein, described stator core has the magnetic conduction punching 1 of plurality of pins to build up by dashing, and the number of teeth in the described magnetic conduction punching 1 is 1:1.5 with the ratio of the number of poles of rotor.
Concrete, magnetic conduction punching 1 is formed by punching silicon-steel.
Further, described centralized winding is three phase windings.
Further, described rotor is provided with magnet.
Further, described rotor is inside rolling hitch structure or outside clinch structure.
Further; Described rotor is arranged in the described stator; Rotor is concentric with the cylindrical of stator, is provided with the gap between the cylindrical of rotor and the stator, is provided with the breach of two above numbers in any described magnetic conduction punching 1; Described breach is distributed in the magnetic conduction punching 1 with along the circumferential direction waiting radian; After a plurality of magnetic conduction punchings 1 were overlapping vertically, the breach in the magnetic conduction punching 1 constituted the groove in the stator core inwall, and breach all is opened on the inboard of magnetic conduction punching 1; Part 2 between any two adjacent openings all is profile of tooth; The inside edge at the middle part of any parts of tooth 2 all is positioned on one first circumference 3, and the cylindrical 4 of described first circumference 3 and rotor or stator concentric also maintains the gap with the cylindrical of rotor, and the inside edge at a tip of any parts of tooth 2 all is positioned at beyond described first circumference 3 and with first circumference 3 and maintains the gap.
Further, described winding coil is for concentrating winding configuration.
Further, mount or be embedded with permanent magnet in the described rotor.
Further, the inside edge of any parts of tooth 2 all is positioned on the tooth circular arc separately, the axle center that rotor cylindrical 4 is all departed from the center of circle of circular arc 3 in any described tooth.
Further, inwall unshakable in one's determination is continuous wavy surface circumferential.
Further, the maximal clearance g between the inside edge of any magnetic conduction punching 1 and the rotor cylindrical
MaxWith minimum clearance g
MinRatio be 1.5～1.8 to 1.
The operation principle of present embodiment is: the gap between rotor and the inwall unshakable in one's determination forms air gap; Adopt non-homogeneous air gap between rotor and the inwall unshakable in one's determination; Can make the inboard air gap flux density Sine distribution of stator, when the stator winding of rotor rotary motor with the sinusoidal good back-emf that is coupled out.The air gap size of punching notch has increased the alternate magnetic resistance of motor stator greater than the size of punching tooth, effectively reduces alternate leakage reactance, has effectively improved the power factor of motor and the peak power of the weak magnetic of the degree of depth.The close sudden change degree of magnetic of motor tooth interpolar that uneven air gap is mild has reduced the teeth groove moment and the noise of motor.
Claims (10)
1. concentrated winding permagnetic synchronous motor; Comprise stator and rotor; Described stator comprises stator core and centralized winding; Described rotor comprises rotor core and magnet steel, it is characterized in that: described stator core has the magnetic conduction punching of plurality of pins to build up by dashing, and the number of teeth in the described magnetic conduction punching is 1:1.5 with the ratio of the number of poles of rotor.
2. a kind of concentrated winding permagnetic synchronous motor as claimed in claim 1, it is characterized in that: described centralized winding is three phase windings.
3. a kind of concentrated winding permagnetic synchronous motor as claimed in claim 1, it is characterized in that: described rotor is provided with magnet.
4. a kind of concentrated winding permagnetic synchronous motor as claimed in claim 1 is characterized in that: described rotor is inside rolling hitch structure or outside clinch structure.
5. a kind of concentrated winding permagnetic synchronous motor as claimed in claim 1; It is characterized in that: described rotor is arranged in the described stator; Rotor is concentric with the cylindrical of stator, is provided with the gap between the cylindrical of rotor and the stator, is provided with the breach of two above numbers in any described magnetic conduction punching; Described breach is distributed in the magnetic conduction punching with along the circumferential direction waiting radian; After a plurality of magnetic conduction punchings were overlapping vertically, the breach in the magnetic conduction punching constituted the groove in the stator core inwall, and breach all is opened on the inboard of magnetic conduction punching; Part between any two adjacent openings all is profile of tooth; The inside edge at the middle part of any parts of tooth all is positioned on one first circumference, and the cylindrical of described first circumference and rotor or stator concentric also maintains the gap with the cylindrical of rotor, and the inside edge at a tip of any parts of tooth all is positioned at beyond described first circumference and with first circumference and maintains the gap.
6. a kind of concentrated winding permagnetic synchronous motor as claimed in claim 5 is characterized in that: described winding coil is for concentrating winding configuration.
7. a kind of concentrated winding permagnetic synchronous motor as claimed in claim 5 is characterized in that: mount or be embedded with permanent magnet in the described rotor.
8. a kind of concentrated winding permagnetic synchronous motor as claimed in claim 5 is characterized in that: the inside edge of any parts of tooth all is positioned on the tooth circular arc separately, the axle center that rotor is all departed from the center of circle of circular arc in any described tooth.
9. a kind of concentrated winding permagnetic synchronous motor as claimed in claim 5 is characterized in that: inwall unshakable in one's determination is continuous wavy surface circumferential.
10. a kind of concentrated winding permagnetic synchronous motor as claimed in claim 5 is characterized in that: the maximal clearance between the inside edge of any magnetic conduction punching and the rotor cylindrical is 1.5～1.8 to 1 with the ratio of minimum clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210111441XA CN102624180A (en) | 2012-04-16 | 2012-04-16 | Concentrated-winding permanent-magnetic synchronous motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210111441XA CN102624180A (en) | 2012-04-16 | 2012-04-16 | Concentrated-winding permanent-magnetic synchronous motor |
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| CN102624180A true CN102624180A (en) | 2012-08-01 |
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| CN201210111441XA Pending CN102624180A (en) | 2012-04-16 | 2012-04-16 | Concentrated-winding permanent-magnetic synchronous motor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023258A (en) * | 2013-01-10 | 2013-04-03 | 深圳市福义乐磁性材料有限公司 | Rare-earth permanent-magnet synchronous servo motor |
| CN103051098A (en) * | 2013-01-22 | 2013-04-17 | 广东肇庆新广仪科技有限公司 | Multi-component electric/magnetic passageway and low-cogging torque magnetic flow switching type motor |
| CN103078465A (en) * | 2012-12-31 | 2013-05-01 | 浙江迈雷科技有限公司 | Permanent magnet synchronous motor used for air conditioner compressor |
| CN105896862A (en) * | 2016-04-12 | 2016-08-24 | 精进电动科技（北京）有限公司 | Permanent magnet motor |
| CN106533106A (en) * | 2015-09-11 | 2017-03-22 | 德昌电机(深圳)有限公司 | Permanent magnet motor and electric tool using same |
| CN107994689A (en) * | 2018-01-18 | 2018-05-04 | 江苏环晟电机有限公司 | A kind of stator piece with direct current generator non-uniform gap |
| CN108288902A (en) * | 2018-04-10 | 2018-07-17 | 青岛千钧投资企业（有限合伙） | Permanent magnet brushless motor for electric vehicle |
| CN115360839A (en) * | 2022-09-26 | 2022-11-18 | 合肥速帆汽车科技有限公司 | Brushless motor rotor and design method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101378214A (en) * | 2007-08-30 | 2009-03-04 | 德昌电机股份有限公司 | Electric motor |
| CN201466836U (en) * | 2008-12-30 | 2010-05-12 | 中国电子科技集团公司第二十一研究所 | Three-phase centralized winding type electric motor with redundant winding |
| CN101789663A (en) * | 2010-01-08 | 2010-07-28 | 李嘉琛 | Vehicle permanent magnetic synchronous motor and stator iron core capable of weakening magnetic resistance moment |
| CN101860092A (en) * | 2009-04-02 | 2010-10-13 | 马渊马达株式会社 | Pole core and the DC motor of using pole core |
| CN202503416U (en) * | 2012-04-16 | 2012-10-24 | 华域汽车电动系统有限公司 | Concentration winding Permanent Magnet Synchronous Motor |
-
2012
- 2012-04-16 CN CN201210111441XA patent/CN102624180A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101378214A (en) * | 2007-08-30 | 2009-03-04 | 德昌电机股份有限公司 | Electric motor |
| CN201466836U (en) * | 2008-12-30 | 2010-05-12 | 中国电子科技集团公司第二十一研究所 | Three-phase centralized winding type electric motor with redundant winding |
| CN101860092A (en) * | 2009-04-02 | 2010-10-13 | 马渊马达株式会社 | Pole core and the DC motor of using pole core |
| CN101789663A (en) * | 2010-01-08 | 2010-07-28 | 李嘉琛 | Vehicle permanent magnetic synchronous motor and stator iron core capable of weakening magnetic resistance moment |
| CN202503416U (en) * | 2012-04-16 | 2012-10-24 | 华域汽车电动系统有限公司 | Concentration winding Permanent Magnet Synchronous Motor |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078465A (en) * | 2012-12-31 | 2013-05-01 | 浙江迈雷科技有限公司 | Permanent magnet synchronous motor used for air conditioner compressor |
| CN103023258A (en) * | 2013-01-10 | 2013-04-03 | 深圳市福义乐磁性材料有限公司 | Rare-earth permanent-magnet synchronous servo motor |
| CN103051098A (en) * | 2013-01-22 | 2013-04-17 | 广东肇庆新广仪科技有限公司 | Multi-component electric/magnetic passageway and low-cogging torque magnetic flow switching type motor |
| CN106533106A (en) * | 2015-09-11 | 2017-03-22 | 德昌电机(深圳)有限公司 | Permanent magnet motor and electric tool using same |
| CN105896862A (en) * | 2016-04-12 | 2016-08-24 | 精进电动科技（北京）有限公司 | Permanent magnet motor |
| CN107994689A (en) * | 2018-01-18 | 2018-05-04 | 江苏环晟电机有限公司 | A kind of stator piece with direct current generator non-uniform gap |
| CN108288902A (en) * | 2018-04-10 | 2018-07-17 | 青岛千钧投资企业（有限合伙） | Permanent magnet brushless motor for electric vehicle |
| CN115360839A (en) * | 2022-09-26 | 2022-11-18 | 合肥速帆汽车科技有限公司 | Brushless motor rotor and design method thereof |
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Application publication date: 20120801 |