CN104868676A - Switch reluctance motor structure capable of reducing vibration noise - Google Patents
Switch reluctance motor structure capable of reducing vibration noise Download PDFInfo
- Publication number
- CN104868676A CN104868676A CN201510262979.4A CN201510262979A CN104868676A CN 104868676 A CN104868676 A CN 104868676A CN 201510262979 A CN201510262979 A CN 201510262979A CN 104868676 A CN104868676 A CN 104868676A
- Authority
- CN
- China
- Prior art keywords
- magnetic pole
- rotor core
- stator core
- core
- rotor
- 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
Links
Landscapes
- Synchronous Machinery (AREA)
Abstract
The invention discloses a switch reluctance motor structure capable of reducing a vibration noise. The structure comprises a rotating shaft, a stator core and a rotor core. The rotor core sleeves the rotating shaft. Stator windings are winded on each magnetic pole of the stator core The magnetic poles on the stator core and magnetic poles on the rotor core are inclined relatively to an axial direction. In the invention, straight magnetic pole structures on the rotor core and the stator core of an original switch reluctance motor are changed to inclined magnetic poles possessing a same angle or herringbone magnetic pole structures; circumference angles of the inclined magnetic poles or the herringbone magnetic pole of the rotor core and the stator core are not less than a circumference angle between two magnetic poles of a rotor or a stator. By using the structure in the invention, an advantage of a traditional switch reluctance motor is maintained; disadvantages that radial and tangential excitation force fluctuations are large, vibration and noises are high in a traditional switch reluctance motor are decreased; power of a unit volume of the switch reluctance motor can be increased.
Description
Technical field
The invention belongs to technical field of switch reluctance motor, be specifically related to a kind of switched reluctance machines structure that can reduce vibration noise.
Background technology
The stator and rotor of switched reluctance machines adopt double-salient-pole structure, formed by silicon steel plate stacking, without any the winding of form, permanent magnet, slip ring etc. on rotor with conventional motors difference, stator only has simple concentratred winding, winding overhang is shorter, therefore switched reluctance machines has that structure is simple, firm, cost is low, high reliability, switched reluctance machines adopts the work of magnetic resistance minimum principle in addition, drive circuit and control are simply, conveniently, flexibly, be easy to realize four quadrant running, reliability is high.Therefore switched reluctance machines has become the strong competitor of Speed Adjustment of AC Motor, DC motor speed drive system, Speed Regulation Systems of BLDCM, is obtained for applies widely in fields such as electric automobile, textile machine, high-speed electric expreess locomotives.
Adopt double-salient-pole structure due to switched reluctance machines and adopt the power supply of switch, it is discontinuous for acting on electromagnetic force on motor stator and rotor, Stators for Switched Reluctance Motors and epitrochanterian radial electromagnetic force and tangential electromagnetic force is caused all to have obvious impact characteristics, thus cause the vibration & noise of this kind of motor comparatively outstanding, seriously have impact on the application and development of switched reluctance machines.
In order to reduce in switched reluctance machines by electromagnetic percussion change the radial electromagnetic force that causes and torque pulsation greatly, problem that vibration & noise is high, at present mainly from searce way the parameter designing of motor, driving and control mode, to reduce pulsation radial load, to reduce torque pulsation.But the electromagnetic force of switched reluctance machines inside and the mechanism of production of torque pulsation comparatively complicated, by being permitted multifactorial impact, as electric machine structure, physical dimension, rotating speed and control strategy etc., so the effect of current some proposed measures is not very good, some measure also can have influence on other performance of motor in addition.
The Chinese patent being CN 203135598U as publication number discloses a kind of helical teeth switched reluctance machines, and it just have employed helical teeth at stator poles tooth.Although this stator helical teeth structure adds the intensity of stator, during machine operation, effective work area of magnetic pole reduces, the power drop of motor unit volume.
Summary of the invention
For the above-mentioned technical problem existing for prior art, the invention provides a kind of switched reluctance machines structure that can reduce vibration noise, the electromagnetic force on rotor and stator surface can be acted in slicked switch reluctance motor running, thus reach the object reducing switched reluctance machines vibration & noise.
Can reduce a switched reluctance machines structure for vibration noise, comprise: rotating shaft, stator core and rotor core, described rotor core is set in rotating shaft, and each magnetic pole of described stator core has stator winding around the home; Magnetic pole on described stator core and the magnetic pole on rotor core are all relative to axial inclination.
Magnetic pole on described stator core and the magnetic pole on rotor core all adopt oblique magnetic pole, and have identical incline direction and inclination angle.
Magnetic pole on described stator core and the magnetic pole on rotor core all adopt herringbone magnetic pole, and described herringbone magnetic pole left and right two-part structure is symmetrical, and magnetic pole left and right two parts are relative to axially having identical inclination angle, different incline directions.
Further, the oblique magnetic pole on described stator core or the circumferential angle of herringbone magnetic pole are not less than the circumferential angle on stator core between two magnetic poles; Because each section has the movement of an angle in the circumferential, thus the circumferential pulse characteristic of electromagnetic force can be reduced, so the vibration & noise of motor can be reduced.
Further, the oblique magnetic pole on described rotor core or the circumferential angle of herringbone magnetic pole are not less than the circumferential angle on rotor core between two magnetic poles; Because each section has the movement of an angle in the circumferential, thus the circumferential pulse characteristic of electromagnetic force can be reduced, so the vibration & noise of motor can be reduced.
Further, described rotor core and rotating shaft can be made of one formula solid construction.
Described rotor core is fastened in support, and is connected with support by rotor core by bearing and end cap.
Switched reluctance machines structure of the present invention is except the switched reluctance machines being used in double-salient-pole, also may be used for other magnetic resistance class motor, in the motor as double-salient-pole structures such as the double salient-pole electric machine of stator permanent magnet composite excitation and the double salient-pole electric machines of electric excitation composite excitation.
Switched reluctance machines structure of the present invention can not only reduce the pulsation in circumference and tangential force of radial electromagnetic force in switched reluctance machines, and the oblique magnetic pole on stators and rotators also enhances the rigidity of motor stator and rotor, improve the vibration resistance of motor, in addition because the effective area of magnetic pole increases, the power of motor unit volume can also be provided further.
Accompanying drawing explanation
Profile (left figure) and the schematic shapes of rotor magnetic pole on rotor surface (right figure) of Fig. 1 to be traditional stator/rotor be switched reluctance machines structure of 6/4 straight magnetic pole.
Profile (left figure) and the schematic shapes of rotor magnetic pole on rotor surface (right figure) of Fig. 2 to be rotor/stator of the present invention be switched reluctance machines structure of 6/4 oblique magnetic pole.
Profile (left figure) and the schematic shapes of rotor magnetic pole on rotor surface (right figure) of Fig. 3 to be rotor/stator of the present invention be switched reluctance machines structure of 6/4 herringbone magnetic pole.
Embodiment
In order to more specifically describe the present invention, below in conjunction with the drawings and the specific embodiments, technical scheme of the present invention is described in detail.
As shown in Figure 1, traditional rotor/stator is 6/4 pole switching reluctance electric machine structure, comprises rotating shaft 1, rotor core 2, stator core 3, winding 4 and casing 5.Rotor core 2 is fastened in rotating shaft 1, and stator core 3 is fixed in motor case 5, and winding 4 is arranged on the salient pole of stator core 3.Because rotor core 2 and the salient pole on stator core 3 are parallel with the axis of stator core with rotor core 2, power so carry out switch to a magnetic pole, if do not consider end effect, so magnetic pole in the axial direction stressed is uniform, but the electromagnetic force in rotor core 2 and stator core 3 circumference has obvious impact characteristics, so motor can be made to occur obvious vibration & noise.
Embodiment 1
As shown in Figure 2, it is 6/4 pole switching reluctance electric machine structure that the present invention has oblique pole stator/rotor, comprises rotating shaft 1, rotor core 2, stator core 3, winding 4 and casing 5 equally.Rotor core 2 is fastened in rotating shaft 1, and stator core 3 is fixed in motor case 5, and winding 4 is arranged on the salient pole of stator core 3.
Because rotor core 2 and the convex pole on stator core 3 are no longer parallel with the axis of stator core with rotor core 2, but become an oblique angle with rotor core 2 with the axis of stator core, and the magnetic pole on rotor core 2 and stator core has identical incline direction and inclination angle, so to a magnetic pole carry out switch power time, if do not consider end effect, although rotor core 2 and stator core 3 are energized magnetic pole in the axial direction the stressed of each section be identical, but because each section has the movement of an angle in the circumferential, circumferential angle due to rotor core and the oblique magnetic pole of stator core is not less than the circumferential angle between rotor or stator two magnetic pole, thus the circumferential pulse characteristic of electromagnetic force can be reduced, so the vibration & noise of motor can be reduced.The switched reluctance machines of simple tiltedly field structure, can produce an additional electromagnetic force component in the axis of rotor core 2 and stator core 3, if this electromagnetic force component is little, then on the characteristic of motor producing obviously impact.
Embodiment 2
As shown in Figure 3, it is 6/4 pole switching reluctance electric machine structure that the present invention has herringbone pole stator/rotor, comprises rotating shaft 1, rotor core 2, stator core 3, winding 4 and casing 5 equally.Rotor core 2 is fastened in rotating shaft 1, and stator core 3 is fixed in motor case 5, and winding 4 is arranged on the convex pole of stator core 3.
Because rotor core 2 and the convex pole on stator core 3 are no longer parallel with the axis of stator core with rotor core 2, but be herringbone magnetic pole, and the left-right parts symmetrical configuration of herringbone magnetic pole on rotor core 2 and stator core 3, there is same tilt angle, different incline directions, so to a magnetic pole carry out switch power time, if do not consider end effect, although rotor core 2 and stator core 3 are energized magnetic pole in the axial direction the stressed of each section be identical, but because each section has the movement of a constant angle in the circumferential, circumferential angle due to rotor core and stator core herringbone magnetic pole is not less than the circumferential angle between rotor or stator two magnetic pole, thus reduce the circumferential pulse characteristic of electromagnetic force, drop to the size of exciting force, reduce the vibration & noise of motor.Due to the left-right parts symmetrical configuration of the switched reluctance machines of herringbone field structure, although left-right parts axially can produce the component of an additional electrical magnetic force, but the little equal direction of the electromagnetic force produced due to both sides is contrary, so can not on any impact of the generation of motor characteristic.
Above-mentioned is can understand and apply the invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to above-described embodiment, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, those skilled in the art are according to announcement of the present invention, and the improvement made for the present invention and amendment all should within protection scope of the present invention.
Claims (6)
1. can reduce a switched reluctance machines structure for vibration noise, comprise: rotating shaft, stator core and rotor core, described rotor core is set in rotating shaft, and each magnetic pole of described stator core has stator winding around the home; It is characterized in that: the magnetic pole on described stator core and the magnetic pole on rotor core are all relative to axial inclination.
2. switched reluctance machines structure according to claim 1, is characterized in that: the magnetic pole on described stator core and the magnetic pole on rotor core all adopt oblique magnetic pole, and have identical incline direction and inclination angle.
3. switched reluctance machines structure according to claim 1, it is characterized in that: the magnetic pole on described stator core and the magnetic pole on rotor core all adopt herringbone magnetic pole, described herringbone magnetic pole left and right two-part structure is symmetrical, and magnetic pole left and right two parts are relative to axially having identical inclination angle, different incline directions.
4. the switched reluctance machines structure according to Claims 2 or 3, is characterized in that: the oblique magnetic pole on described stator core or the circumferential angle of herringbone magnetic pole are not less than the circumferential angle on stator core between two magnetic poles.
5. the switched reluctance machines structure according to Claims 2 or 3, is characterized in that: the oblique magnetic pole on described rotor core or the circumferential angle of herringbone magnetic pole are not less than the circumferential angle on rotor core between two magnetic poles.
6. switched reluctance machines structure according to claim 1, is characterized in that: described rotor core and rotating shaft can be made of one formula solid construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262979.4A CN104868676A (en) | 2015-05-21 | 2015-05-21 | Switch reluctance motor structure capable of reducing vibration noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262979.4A CN104868676A (en) | 2015-05-21 | 2015-05-21 | Switch reluctance motor structure capable of reducing vibration noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104868676A true CN104868676A (en) | 2015-08-26 |
Family
ID=53914280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510262979.4A Pending CN104868676A (en) | 2015-05-21 | 2015-05-21 | Switch reluctance motor structure capable of reducing vibration noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104868676A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968582A (en) * | 2021-03-05 | 2021-06-15 | 江苏大学 | Low-vibration permanent magnet brushless motor optimization design method |
| CN112994279A (en) * | 2021-02-19 | 2021-06-18 | 杭州星成电气科技有限公司 | Stator and rotor of switched reluctance motor |
| CN116799980A (en) * | 2023-06-26 | 2023-09-22 | 上海理工大学 | Vibration reduction type stator modularized switch reluctance motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030057800A1 (en) * | 2001-09-26 | 2003-03-27 | Daniel Gizaw | Pumping motor with skewed rotor laminations |
| CN101442245A (en) * | 2008-12-23 | 2009-05-27 | 南京航空航天大学 | Self-wind cooled rotor low torque ripple magneto resistance genus motor |
| US20130175891A1 (en) * | 2011-12-16 | 2013-07-11 | Samsung Electro-Mechanics Co., Ltd. | Switched reluctance motor |
| CN204794614U (en) * | 2015-05-21 | 2015-11-18 | 浙江大学 | Can reduce switched reluctance motor structure of vibration noise |
-
2015
- 2015-05-21 CN CN201510262979.4A patent/CN104868676A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030057800A1 (en) * | 2001-09-26 | 2003-03-27 | Daniel Gizaw | Pumping motor with skewed rotor laminations |
| CN101442245A (en) * | 2008-12-23 | 2009-05-27 | 南京航空航天大学 | Self-wind cooled rotor low torque ripple magneto resistance genus motor |
| US20130175891A1 (en) * | 2011-12-16 | 2013-07-11 | Samsung Electro-Mechanics Co., Ltd. | Switched reluctance motor |
| CN204794614U (en) * | 2015-05-21 | 2015-11-18 | 浙江大学 | Can reduce switched reluctance motor structure of vibration noise |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994279A (en) * | 2021-02-19 | 2021-06-18 | 杭州星成电气科技有限公司 | Stator and rotor of switched reluctance motor |
| CN112994279B (en) * | 2021-02-19 | 2022-02-11 | 杭州星成电气科技有限公司 | Switched reluctance motor |
| CN112968582A (en) * | 2021-03-05 | 2021-06-15 | 江苏大学 | Low-vibration permanent magnet brushless motor optimization design method |
| CN116799980A (en) * | 2023-06-26 | 2023-09-22 | 上海理工大学 | Vibration reduction type stator modularized switch reluctance motor |
| CN116799980B (en) * | 2023-06-26 | 2024-05-07 | 上海理工大学 | Vibration reduction type stator modularized switch reluctance motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100899913B1 (en) | Motor | |
| CN201107842Y (en) | Disc type switch reluctance motor | |
| US8847464B2 (en) | Electrical machine with improved stator flux pattern across a rotor that permits higher torque density | |
| CN102035270B (en) | Axial excitation double salient pole motors | |
| US20120286616A1 (en) | Motor | |
| Zhao et al. | Dual airgap stator-and rotor-permanent magnet machines with spoke-type configurations using phase-group concentrated coil windings | |
| CN106602823A (en) | Double-claw-pole-stator magnetic gathering type vernier motor | |
| CN1623267A (en) | Electric motor, particularly an electronically commutated direct current motor | |
| CN102355108B (en) | High-quality three-phase alternating current permanent magnet servo synchronous motor | |
| CN104113154A (en) | Embedded PMSM for turning-type electric main shaft | |
| JP2006042414A (en) | Brushless motor | |
| CN103199642A (en) | Motor | |
| US7482724B2 (en) | Ipm electric rotating machine | |
| CN104158376A (en) | Brush-contained direct current motor capable of reducing electromagnetic excitation force | |
| CN106026467B (en) | Permasyn morot and its rotor | |
| CN104868676A (en) | Switch reluctance motor structure capable of reducing vibration noise | |
| Dück et al. | Design and analysis of axial-flux permanent magnet synchronous machines as traction drives for electric vehicles | |
| CN204465161U (en) | A kind of single-phase transverse flux machine | |
| CN114899957A (en) | Design method of three-phase split-tooth permanent magnet vernier motor | |
| CN104795952B (en) | Switched reluctance machines | |
| CN104767336A (en) | Single-phase separately-excited magneto-resistive power generator | |
| CN204794614U (en) | Can reduce switched reluctance motor structure of vibration noise | |
| KR101546794B1 (en) | BLDC motor with rotor equipped with the modular permanent magnet | |
| US20190140494A1 (en) | Electric motor with low cogging torque | |
| CN212086044U (en) | Brushless motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |