CN104319970A - Taper air gap push-pull type permanent magnet synchronous motor - Google Patents
Taper air gap push-pull type permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN104319970A CN104319970A CN201410655718.4A CN201410655718A CN104319970A CN 104319970 A CN104319970 A CN 104319970A CN 201410655718 A CN201410655718 A CN 201410655718A CN 104319970 A CN104319970 A CN 104319970A
- Authority
- CN
- China
- Prior art keywords
- air gap
- synchronous motor
- pull type
- permagnetic synchronous
- stator core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to a motor, in particular to a taper air gap push-pull type permanent magnet synchronous motor, and belongs to the technical field of permanent magnet synchronous motors. According to the technical scheme, the taper air gap push-pull type permanent magnet synchronous motor comprises a motor shell and a rotation shaft; symmetrically-distributed rotor cores are arranged in the motor shell, and a plurality of evenly-distributed stator cores are arranged between the rotor cores; the rotor cores and the stator cores are taper so as to form taper air gaps in the motor shell. According to the taper air gap push-pull type permanent magnet synchronous motor, the manufacturing cost is reduced, efficiency is improved, losses are reduced, the application scope of the permanent magnet synchronous motor is enlarged, and the taper air gap push-pull type permanent magnet synchronous motor is safe and reliable.
Description
Technical field
Invention relates to a kind of motor, and especially a kind of tapered air gap push-pull type permagnetic synchronous motor, belongs to the technical field of permagnetic synchronous motor.
Background technology
It is high that permagnetic synchronous motor has efficiency, and speed is adjustable, and dynamic property is good, the plurality of advantages that reliability is high.But existing magneto, magnet steel is often arranged in thorax in stator core, because of by spatial limitation, " magnetic energy product " must be selected high, the rare earth magnetic steel that volume is little.This magnet steel is because containing rare earth element Samarium or neodymium (SmCo magnet steel or Nd-Fe-B magnet steel), price is very expensive, and resource-constrained.(certainly, external-rotor motor, also can be arranged in stator core periphery magnet steel, but limits by external diameter equally).Spatial limitation and cost high, significantly limit development and the scope of application of permagnetic synchronous motor.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of tapered air gap push-pull type permagnetic synchronous motor, it reduces manufacturing cost, improves efficiency, reduces the wastage, and expands the scope of application of permagnetic synchronous motor, safe and reliable.
According to technical scheme provided by the invention, described tapered air gap push-pull type permagnetic synchronous motor, comprises electric machine casing and rotating shaft; In described electric machine casing, symmetrical rotor core is set, some equally distributed stator cores are set between rotor core; Described rotor core and stator core are all tapered, to form tapered air gap in electric machine casing.
Arrange the different magnet steel of polarity at the two ends of described stator core, described magnet steel is positioned between stator core and rotor core; Be interspersed at the magnet steel of the end opposed polarity of stator core, to form the axial magnetic field of recommending in electric machine casing.
Described stator core arranges stator winding.Described rotor core is male conical or concave cone shape.
Described electric machine casing comprises casing and is positioned at the end cap at described casing two ends, and rotating shaft is arranged on end cap by bearing.
Described stator winding is wrapped on stator core vertically, and the axis of stator winding parallels with rotating shaft.
Described magnet steel comprises ferrite magnetic steel.Described ferrite magnetic steel is strontium ferrite or barium ferrite magnet steel.Described stator core adopts electrical sheet.
Advantage of the present invention: mainly the magnet steel of conventional permanent magnet motor, moving on to end by thorax in stator core thus has liberated the space of placing magnet steel, creating conditions for using cheap ferrite magnetic steel.Stator core and rotor core all adopt taper, to form tapered air gap in electric machine casing, to guarantee enough magnetic flux; The different magnet steel of polarity is set at the two ends of stator core, in electric machine casing, the magnet steel of one end opposed polarity is interspersed, to form the axial magnetic field of the gesture of recommending in electric machine casing, reduce manufacturing cost, improve efficiency, reduce the wastage, expand the scope of application of permagnetic synchronous motor, safe and reliable.
Accompanying drawing explanation
Fig. 1 is that one of the present invention implements structural representation.
Fig. 2 is the distribution map of stator core and stator winding viewed from the left end of Fig. 1.
Fig. 3 is the distribution map of magnet steel viewed from the right-hand member of Fig. 1.
Fig. 4 is that another kind of the present invention implements structure chart.
Fig. 5 is the distribution map of stator core and stator winding viewed from the left end of Fig. 4.
Fig. 6 is the distribution map of magnet steel viewed from the right-hand member of Fig. 5.
Fig. 7 be female rotor iron core of the present invention with rotating shaft, magnet steel coordinate schematic diagram.
Fig. 8 is the left view of Fig. 9.
Fig. 9 be stator core of the present invention with stator winding coordinate schematic diagram.
Description of reference numerals: 1-stator core, 2-stator winding, 3-magnet steel, 4-rotor core, 5-bearing, 6-rotating shaft, 7-end cap and 8-casing.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
In order to reduce manufacturing cost, improve efficiency, reduce the wastage, expand the scope of application of permagnetic synchronous motor, the present invention includes electric machine casing and rotating shaft 6, the two ends of described rotating shaft 6 pass electric machine casing and also can rotate in described electric machine casing outward; Symmetrical rotor core 4 is set in described electric machine casing, some equally distributed stator cores 1 are set between rotor core 4; Described rotor core 4 is all tapered with stator core 1, to form tapered air gap in electric machine casing.
Particularly, rotor core 4 is enclosed within rotating shaft 6, can rotate in electric machine casing.Rotor core 4 is tapered, stator core 1 is also tapered, and the taper that be installed on rotor core 4 of stator core 1 in electric machine casing is suitable, is coordinated by rotor core 4 and stator core 1, in electric machine casing, form tapered air gap, thus can enough magnetic flux be ensured.
Described rotor core 4 is in male conical or concave cone shape.The structure of rotor core 4 in male conical has been shown in Fig. 1, wherein, the projection vicinity mutually of two rotor cores 4, the larger outward opening of the rotor core 4 of male conical.Now, the narrower end of stator core 1 is near the projection of the rotor core 4 of male conical, and the wider end of stator core 1 distributes, closer to the inwall of electric machine casing away from the protrusion of rotor core 4.
Fig. 4 and Fig. 7 shows the structure of rotor core 4 in concave cone shape, rotor core 4 is in horn-like, the end that two rotor core 4 openings are larger is mutually corresponding close, at stator core 1 between two rotor cores 4, the contiguous rotating shaft 6 in end that stator core 1 is wider, the inwall of the contiguous electric machine casing in end that rotor core 1 is narrower, thus can be suitable with the shape of rotor core 4.
Arrange the different magnet steel of polarity 3 at the two ends of described stator core 1, described magnet steel 3 is positioned between stator core 1 and rotor core 4; Be interspersed in electric machine casing at the magnet steel 3 of the end opposed polarity of stator core 1, to form the axial magnetic field of recommending in electric machine casing.
As shown in Fig. 2, Fig. 3, Fig. 5 and Fig. 6, magnet steel 3 is distributed in the two ends of stator core 1, and magnet steel 3 polarity at each stator core 1 two ends is different, and namely one is N magnetic pole, and one is S magnetic pole, and the magnet steel 3 at stator core 1 two ends can form a magnetic pole.Magnet steel 3 is between rotor core 4 and stator core 1, thus form the gesture of recommending that pushes away, is drawn, to form axial magnetic field in electric machine casing, thus liberated space, for using low magnetic energy product, cheap, the ferrite magnetic steel of the abundant large volume of resource becomes possibility, greatly can improve electric efficiency, reduce costs; Namely the material of described magnet steel 3 can comprise ferrite magnetic steel, and described ferrite magnetic steel is strontium ferrite or barium ferrite magnet steel.
In the specific implementation, magnet steel 3 is different and different with the shape of rotor core 4 from the position relationship of rotor core 4, and when rotor core 4 adopts male conical, magnet steel 3 is positioned on the outer wall of rotor core 4, when rotor core 4 adopts concave cone shape, magnetic field 3 is positioned on the inwall of rotor core 4.
As Fig. 8 and Fig. 9, described stator core 1 arranges stator winding 9.Described stator winding 9 is wrapped on stator core 1 vertically, and the axis of stator winding 9 parallels with rotating shaft 6.Wherein, the width at stator core 1 two ends is different, and stator core 1 is positioned at the mating shapes of the installation shape of electric machine casing and the rotor core 4 of employing.Owing to can form axial magnetic field in electric machine casing, therefore stator core 1 can adopt magnetic property good and have the electrical sheet of orientation, to improve the efficiency of motor further, reduces the wastage.
Described electric machine casing comprises casing 8 and is positioned at the end cap 7 at described casing 8 two ends, and rotating shaft 6 is arranged on end cap 7 by bearing 5.The two ends of casing 8 are sealed by end cap 7, and rotating shaft 6 is coordinated with end cap 7 by bearing 5, can be rotated by bearing 5 in electric machine casing.
Stator core 1 of the present invention and rotor core 4 all adopt taper, to form tapered air gap in electric machine casing, to guarantee enough magnetic flux; The different magnet steel of polarity 3 is set at the two ends of stator core 1, in electric machine casing, the magnet steel 3 of one end opposed polarity is interspersed, to form the axial magnetic field of the gesture of recommending in electric machine casing, thus liberation space, make magnet steel 3 to adopt ferrite magnetic steel, compact conformation, reduce use cost, improve electric efficiency, reduce the wastage, expand the scope of application of permagnetic synchronous motor, safe and reliable.
Claims (9)
1. a tapered air gap push-pull type permagnetic synchronous motor, comprises electric machine casing and rotating shaft (6), arranges symmetrical rotor core (4) in described electric machine casing, arranges some equally distributed stator cores (1) between rotor core (4); It is characterized in that: described rotor core (4) is all tapered with stator core (1), to form tapered air gap in electric machine casing.
2. tapered air gap push-pull type permagnetic synchronous motor according to claim 1, is characterized in that: arrange the different magnet steel of polarity (3) at the two ends of described stator core (1), described magnet steel (3) is positioned between stator core (1) and rotor core (4); Be interspersed at the magnet steel (3) of the end opposed polarity of stator core (1), to form the axial magnetic field of recommending in electric machine casing.
3. tapered air gap push-pull type permagnetic synchronous motor according to claim 1, is characterized in that: described stator core (1) is arranged stator winding (9).
4. tapered air gap push-pull type permagnetic synchronous motor according to claim 1, is characterized in that: described rotor core (4) is in male conical or concave cone shape.
5. tapered air gap push-pull type permagnetic synchronous motor according to claim 1, it is characterized in that: described electric machine casing comprises casing (8) and is positioned at the end cap (7) at described casing (8) two ends, and rotating shaft (6) is arranged on end cap (7) by bearing (5).
6. tapered air gap push-pull type permagnetic synchronous motor according to claim 3, is characterized in that: described stator winding (9) is wrapped on stator core (1) vertically, and the axis of stator winding (9) parallels with rotating shaft (6).
7. tapered air gap push-pull type permagnetic synchronous motor according to claim 2, is characterized in that: described magnet steel (3) comprises ferrite magnetic steel.
8. tapered air gap push-pull type permagnetic synchronous motor according to claim 7, is characterized in that: described ferrite magnetic steel is strontium ferrite or barium ferrite magnet steel.
9. tapered air gap push-pull type permagnetic synchronous motor according to claim 7, is characterized in that: described stator core (1) adopts electrical sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410655718.4A CN104319970A (en) | 2014-11-17 | 2014-11-17 | Taper air gap push-pull type permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410655718.4A CN104319970A (en) | 2014-11-17 | 2014-11-17 | Taper air gap push-pull type permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104319970A true CN104319970A (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410655718.4A Pending CN104319970A (en) | 2014-11-17 | 2014-11-17 | Taper air gap push-pull type permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104319970A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016176897A1 (en) * | 2015-05-07 | 2016-11-10 | 周焕民 | Tapered air-gap axial dual-loop magnetic field permanent magnet synchronous motor |
| CN110867988A (en) * | 2018-08-27 | 2020-03-06 | 广东威灵电机制造有限公司 | Permanent magnet motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19954196A1 (en) * | 1998-12-28 | 2000-06-29 | Feldmann Johann | Electromagnetic energy converter preferably synchronous machine, has annular core winding with conical narrowing from inner to outer core periphery, and rotor plate surfaces carrying permanent magnets inclined accordingly |
| US6455975B1 (en) * | 1999-12-03 | 2002-09-24 | Pacific Scientific Electro Kinetics Division | Regulated permanent magnet generator |
| DE102011080239A1 (en) * | 2011-08-02 | 2013-02-07 | Bayerische Motoren Werke Aktiengesellschaft | Method for adjusting power of generator of vehicle, involves varying size of airgap between stator and rotor by changing rotor position with respect to stator position for adjusting power of electric machine |
| WO2014082371A1 (en) * | 2012-11-27 | 2014-06-05 | 镇江市江南矿山机电设备有限公司 | Permanent magnet coupling mechanism between shafts |
| CN204190581U (en) * | 2014-11-17 | 2015-03-04 | 周焕民 | Tapered air gap push-pull type permagnetic synchronous motor |
-
2014
- 2014-11-17 CN CN201410655718.4A patent/CN104319970A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19954196A1 (en) * | 1998-12-28 | 2000-06-29 | Feldmann Johann | Electromagnetic energy converter preferably synchronous machine, has annular core winding with conical narrowing from inner to outer core periphery, and rotor plate surfaces carrying permanent magnets inclined accordingly |
| US6455975B1 (en) * | 1999-12-03 | 2002-09-24 | Pacific Scientific Electro Kinetics Division | Regulated permanent magnet generator |
| DE102011080239A1 (en) * | 2011-08-02 | 2013-02-07 | Bayerische Motoren Werke Aktiengesellschaft | Method for adjusting power of generator of vehicle, involves varying size of airgap between stator and rotor by changing rotor position with respect to stator position for adjusting power of electric machine |
| WO2014082371A1 (en) * | 2012-11-27 | 2014-06-05 | 镇江市江南矿山机电设备有限公司 | Permanent magnet coupling mechanism between shafts |
| CN204190581U (en) * | 2014-11-17 | 2015-03-04 | 周焕民 | Tapered air gap push-pull type permagnetic synchronous motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016176897A1 (en) * | 2015-05-07 | 2016-11-10 | 周焕民 | Tapered air-gap axial dual-loop magnetic field permanent magnet synchronous motor |
| CN110867988A (en) * | 2018-08-27 | 2020-03-06 | 广东威灵电机制造有限公司 | Permanent magnet motor |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |
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| RJ01 | Rejection of invention patent application after publication |