CN101025200A - Permanent magnet polarized external rotor radial magnetic bearing - Google Patents
Permanent magnet polarized external rotor radial magnetic bearing Download PDFInfo
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- CN101025200A CN101025200A CNA2007100650508A CN200710065050A CN101025200A CN 101025200 A CN101025200 A CN 101025200A CN A2007100650508 A CNA2007100650508 A CN A2007100650508A CN 200710065050 A CN200710065050 A CN 200710065050A CN 101025200 A CN101025200 A CN 101025200A
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- permanent magnet
- guiding loop
- magnetic
- stator core
- magnetic guiding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0459—Details of the magnetic circuit
- F16C32/0461—Details of the magnetic circuit of stationary parts of the magnetic circuit
- F16C32/0465—Details of the magnetic circuit of stationary parts of the magnetic circuit with permanent magnets provided in the magnetic circuit of the electromagnets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0474—Active magnetic bearings for rotary movement
- F16C32/0487—Active magnetic bearings for rotary movement with active support of four degrees of freedom
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/20—Application independent of particular apparatuses related to type of movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention is a permanent magnet biasing inner rotor radial magnetic bearing, comprising inner magnetic conductor rings, stator iron cores, rotor iron cores, outer magnetic conductor rings, outer magnetic isolation rings, permanent magnet, excitation coils, and air gaps, where the stator iron cores I and II compose 8 magnetic poles in the positive and negative directions of X and Y axes at the left and right ends, each magnetic pole is wound with excitation coil, the inner magnetic conductor ring is inside the stator iron core, the rotor iron cores I and IV are outside the stator iron cores I and II, respectively; the rotor iron core II, the outer magnetic isolation ring, and the rotor iron core III are outside in the stator iron core III; the rotor iron cores I and II are interconnected through the outer magnetic conductor ring I; the rotor iron cores III and IV are interconnected through the outer magnetic conductor ring II; the outer magnetic conductor rings I and II are connected with the rotor iron cores II and III through the outer magnetic isolation ring, respectively; the air gaps are between the rotor iron cores and the stator iron cores; the inner magnetic conductor rings II and III are interconnected through the permanent magnet I, and the inner magnetic conductor rings III and I are interconnected through the permanent magnet II. And the invention can replace the existing magnetic bearings used in pairs, largely shortening axial distance.
Description
Technical field
The present invention relates to a kind of non-contact magnetically suspension bearing, particularly a kind of permanent magnet offset external rotor radial magnetic bearing can be used as the contactless support of rotary component in the machinery such as magnetically levitated flywheel, magnetic suspension control torque gyroscope, motor, lathe.
Background technique
Magnetic suspension bearing divides pure electromagnetic type and permanent magnet bias to power up the hybrid magnetic suspension bearing of magnetic control system, the former uses, and electric current is big, power consumption is big, permanent magnet bias powers up the hybrid magnetic suspension bearing of magnetic control system, main bearing capacity is born in the magnetic field that permanent magnet produces, electromagnetism magnetic field provides auxiliary adjusting bearing capacity, thereby this bearing can reduce to control electric current greatly, reduces the wastage.Present permanent magnet offset external rotor radial magnetic bearing structure, some is on the basis of common radial magnetic bearing, on electromagnetic circuit, place permanent magnet, the magnetic flux that control coil produced will pass permanent magnet like this, because the permanent magnet magnetic resistance is very big, thereby control coil will produce certain electromagnetism magnetic flux and need bigger exciting curent, and this obviously can increase the power consumption of bearing; Certain structures is that permanent magnet is directly linked to each other with stator lasmination is unshakable in one's determination, and permanent magnetic circuit can lose too much magnetomotive force when vertically passing stator core like this, thereby can weaken the suction of permanent magnet to rotor shaft greatly; Certain structures is that permanent magnet is linked to each other with laminated core by magnetic guiding loop, the electricity magnetic excitation circuit forms the loop through laminated core, Chinese patent application number: the permanent magnet offset external rotor radial magnetic bearing of 200510011270.3 and 200510011690.1 structures, as depicted in figs. 1 and 2, the permanent magnetism magnetomotive force can not produce loss in laminated core, electric magnetic excitation circuit can not passed through permanent magnet itself yet simultaneously, but because of using in pairs, need cause axial length longer, so can not satisfy little, the lightweight purposes of the desired volume of astrovehicle such as satellite, space station.If the field coil at these two kinds of magnetic bearing structure two ends is controlled separately for axial length is shortened, being about to a radial direction magnetic bearing uses as two magnetic bearings, the electromagnetism magnetic flux that field coil produced at magnetic bearing two ends is axially will be through identical electromagnetic circuit so, coupling influence is serious, is unfavorable for control; Certain structures such as Chinese patent application number: 200510086223.5, the permanent magnet offset radial magnetic bearing of 200510086213.1 and 200510086832.0 structures, as Fig. 3, Fig. 4 and shown in Figure 5, though its permanent magnetic circuit and electric magnetic excitation circuit coplane, axial length is short in the time of can accomplishing single bearing, but the radial direction magnetic bearing of these several structures still needs to use in pairs in use, causes the axial length of total system still longer.And these several structures are 16 stator core field structures when using in pairs, thereby weight, volume are relatively large; Also some structure such as Chinese patent application number: the permanent magnet offset radial magnetic bearing of 200510086831.6 structures, as shown in Figure 6, permanent magnet is embedded in adjacent two stator core magnetic poles at interval, its permanent magnetic circuit and electric excitatory magnetic circuit coplane in arbitrary radial cross section, though can reduce the axial dimension of single radial direction magnetic bearing, but still must use the axial length and the volume that cause equipment all bigger in actual use in pairs, and the existence of interstice make the processing technology complexity.Thereby existing permanent magnet offset external rotor radial magnetic bearing exists because of need use institute in pairs and causes axial length to be grown and volume, shortcoming that weight is bigger.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, provide a kind of volume little, in light weight, that be convenient to control, that alternative original magnetic bearing uses in pairs permanent magnet offset external rotor radial magnetic bearing.
Technical solution of the present invention is: permanent magnet offset external rotor radial magnetic bearing is made up of interior magnetic guiding loop, stator core, rotor core, outer magnetic guiding loop, outer magnetism resistent ring, permanent magnet, field coil, air gap.Rotor core internal surface and stator core outer surface leave certain clearance, form air gap, wherein stator core comprises stator core I, stator core II and stator core III, rotor core comprises rotor core I, rotor core II, rotor core III and rotor core IV, interior magnetic guiding loop comprises interior magnetic guiding loop I, interior magnetic guiding loop II and interior magnetic guiding loop III, outer magnetic guiding loop comprises outer magnetic guiding loop I and outer magnetic guiding loop II, permanent magnet comprises permanent magnet I and permanent magnet II, stator core I, stator core III and stator core II form the magnetic bearing right side respectively, in, the three layers of X in a left side, 12 magnetic poles on the positive negative direction of Y, and all be wound with field coil on 8 magnetic pole of the stator that stator core I and stator core II form, stator core I, the inside of stator core II and stator core III is respectively interior magnetic guiding loop I, interior magnetic guiding loop II and interior magnetic guiding loop III, stator core I, stator core II outside is rotor core I, rotor core IV, stator core III outside is rotor core II, outer magnetism resistent ring and rotor core III, rotor core I, rotor core II is outside to link to each other by outer magnetic guiding loop I, rotor core III, rotor core IV is outside to link to each other by outer magnetic guiding loop II, outer magnetic guiding loop I, rotor core II and outer magnetic guiding loop II, link to each other by outer magnetism resistent ring between the rotor core III, interior magnetic guiding loop II links to each other by permanent magnet I with interior magnetic guiding loop III, and interior magnetic guiding loop III links to each other by permanent magnet II with interior magnetic guiding loop I.
The principle of such scheme is: permanent magnet provides permanent magnet bias magnetic field to magnetic bearing, bear the suffered radial force of magnetic bearing, regulating action is played in the magnetic field that field coil produced, and is used for changing every power of extremely descending magnetic field, keep magnetic bearing rotor air gap even, make rotor obtain contactless stable support.In the ideal case, rotor is in the equilibrium position, and it is identical that the positive negative direction of X, Y is subjected to suction.If rotor is because disturbance generation translation, suppose that rotor departs from the equilibrium position and moves to+Y direction, so+Y direction air gap strengthens and to cause suction to reduce, and-Y direction air gap reduces to make suction to increase, galvanization in the field coil of this moment on stator core I Y direction, make the close and close stack of permanent magnetism magnetic of electromagnetism magnetic of stator core I+Y direction air gap, the close and close counteracting of permanent magnetism magnetic of the electromagnetism magnetic of-Y direction air gap; Galvanization in the field coil of while on stator core II Y direction, make the close and close stack of permanent magnetism magnetic of electromagnetism magnetic of stator core II+Y direction air gap, close and the close counteracting of permanent magnetism magnetic of the electromagnetism magnetic of-Y direction air gap, thus make rotor be subjected to making a concerted effort of one-Y direction, can make rotor get back to the equilibrium position; In like manner, if rotor departs from the equilibrium position on directions X when mobile, can sense of current make rotor get back to the equilibrium position in the directions X field coil by regulating among stator core I, the II.If rotor twists owing to disturbance departs from the equilibrium position, suppose rotor core I to the twisting of-Y direction and rotor core IV to+Y direction twisting, rotor core I place+Y direction air gap reduces to cause suction to increase so,-Y direction air gap increases makes suction reduce, and rotor core IV place+Y direction air gap increasing causes suction to reduce, and-Y direction air gap reduces to make suction to increase.Galvanization in the field coil of this moment on stator core I Y direction, make the close and close counteracting of permanent magnetism magnetic of electromagnetism magnetic of stator core I+Y direction air gap, close and the close stack of permanent magnetism magnetic at the electromagnetism magnetic of-Y direction air gap makes rotor core I be subjected to making a concerted effort on the one+Y direction; Galvanization in the field coil on stator core II Y direction, make the close and close stack of permanent magnetism magnetic of electromagnetism magnetic of stator core II+Y direction air gap, close and the close counteracting of permanent magnetism magnetic of the electromagnetism magnetic of-Y direction air gap, make rotor core IV be subjected to making a concerted effort on the one-Y direction, thereby guarantee that rotor gets back to the equilibrium position.
Permanent magnetic circuit of the present invention can be divided into left and right sides two-part, the left-half magnetic circuit is: magnetic flux is from the N utmost point of permanent magnet I, by interior magnetic guiding loop II, stator core II, air gap, rotor core IV, outer magnetic guiding loop II, get back to the S utmost point of permanent magnet I through rotor core III, air gap, stator core III, interior magnetic guiding loop III, constitute the closed-loop path; In like manner, the right half part magnetic circuit is: magnetic flux is from the N utmost point of permanent magnet II, by interior magnetic guiding loop I, stator core I, air gap, rotor core I, outer magnetic guiding loop I, the S utmost point through rotor core II, air gap, stator core III, interior magnetic guiding loop III get back to permanent magnet II constitutes the closed-loop path.Left and right sides two-part magnetic circuit forms the main magnetic circuit of magnetic suspension bearing, and as shown in Figure 7, outer magnetism resistent ring is opened left and right sides two-part permanent magnetic circuit effective isolation.The magnetic flux that produces with stator core I+Y direction field coil electric current is an example, electricity magnetic excitation circuit path is: the stator core magnetic pole of electro-magnetic flux on the+Y direction, warp+Y direction air gap are to rotor core I, then warp+X ,-X and-the air gap arrival+X of three directions of Y ,-X and-the stator core magnetic pole of three directions of Y, get back to stator core magnetic pole on the stator core I+Y direction by interior magnetic guiding loop I again, constitute the closed-loop path; In like manner, the electric magnetic excitation circuit path of the magnetic flux that stator core II+Y direction field coil electric current produces is: the stator core magnetic pole of electro-magnetic flux on the+Y direction, warp+Y direction air gap are to rotor core II, then warp+X ,-X and-the air gap arrival+X of three directions of Y ,-X and-the stator core magnetic pole of three directions of Y, get back to stator core magnetic pole on the stator core II+Y direction by interior magnetic guiding loop II again, constitute the closed-loop path, as shown in Figure 8.The equal effective isolation of left and right sides two-part of electric magnetic excitation circuit is opened in the existence of outer magnetism resistent ring, has avoided the magnetic circuit coupling, still is beneficial to control thereby make a magnetic bearing substitute after existing two magnetic bearings use.This structure has guaranteed that electric magnetic excitation circuit not by permanent magnet inside, has reduced bearing loss simultaneously, has guaranteed that also the permanent magnet magnetic circuit not directly by the stator core of lamination, has reduced the magnetomotive loss of permanent magnetism.
The present invention's advantage compared with prior art is: the present invention is on the basis that guarantees existing permanent magnet biased magnetic bearing low loss characteristic, and the permanent magnet offset external rotor radial magnetic bearing structure of proposition is by using one with regard to the paired permanent magnet offset radial magnetic bearing that uses of alternative existing need.The field coil at described magnetic bearing structure two ends is controlled separately, and the existence every magnet is outward opened the equal effective isolation of left and right sides two-part of permanent magnetic circuit and electric magnetic excitation circuit, has avoided coupling.In a machinery, the present invention substitutes the paired use of existing magnetic bearing structure, has shortened axial distance greatly, in the volume and the quality that guarantee to have reduced on the basis of being convenient to control equipment.
Description of drawings
Fig. 1 is the permanent magnet offset external rotor radial magnetic bearing structural drawing of patent applied for (200510011270.3), and wherein (a) is axial, cross-sectional view, (b) is radial end face figure;
Fig. 2 is the permanent magnet offset external rotor radial magnetic bearing structural drawing of patent applied for (200510011690.1), and wherein (a) is axial, cross-sectional view, (b) is radial end face figure;
Fig. 3 is the permanent magnet offset external rotor radial magnetic bearing radial end face figure of patent applied for (200510086223.5);
Fig. 4 is the permanent magnet offset external rotor radial magnetic bearing radial end face figure of patent applied for (200510086213.1);
Fig. 5 is the permanent magnet offset external rotor radial magnetic bearing radial end face figure of patent applied for (200510086832.0);
Fig. 6 is the permanent magnet offset external rotor radial magnetic bearing radial end face figure of patent applied for (200510086831.6);
Fig. 7 is a permanent magnet offset external rotor radial magnetic bearing axial, cross-sectional view of the present invention;
Fig. 8 is permanent magnet offset external rotor radial magnetic bearing radial end face figure of the present invention.
Embodiment
As Fig. 1, shown in 2, the present invention is totally by a left side, in, right three groups of stators and rotor are formed, comprising 3 interior magnetic guiding loops: interior magnetic guiding loop I1, interior magnetic guiding loop II12 and interior magnetic guiding loop III14,2 permanent magnets: permanent magnet I13 and permanent magnet II16,3 stator cores: stator core I2, stator core II11 and stator core III15,8 field coils 3,4 rotor cores: rotor core I4, rotor core II6, rotor core III8 and rotor core IV10,2 outer magnetic guiding loops: outer magnetic guiding loop I5 and outer magnetic guiding loop II9,1 outer magnetism resistent ring 7,12 air gaps 17.Rotor core internal surface and stator core outer surface leave certain clearance, form air gap 17, and interstice coverage is generally 0.2mm～0.3mm.Stator core I2, stator core III15 and stator core II11 form the magnetic bearing right side respectively, in, the three layers of X in a left side, 12 magnetic poles on the positive negative direction of Y, and all be wound with field coil 3 on 8 magnetic pole of the stator that stator core I2 and stator core II11 form, stator core III15 is used to form the magnetic circuit loop, stator core I2, the inside of stator core II11 and stator core III15 is respectively interior magnetic guiding loop I1, interior magnetic guiding loop II12 and interior magnetic guiding loop III14, stator core I2 and stator core II11 outside are respectively rotor core I4, rotor core IV10, stator core III15 outside is rotor core II6, outer magnetism resistent ring 7 and rotor core III8, rotor core I4, rotor core II6 is outside to link to each other by outer magnetic guiding loop I5, rotor core III8, rotor core IV10 is outside to link to each other by outer magnetic guiding loop II9, outer magnetic guiding loop I5, rotor core II6 and outer magnetic guiding loop II9, link to each other by outer magnetism resistent ring 7 between the rotor core III8, interior magnetic guiding loop II12 links to each other by permanent magnet I13 with interior magnetic guiding loop III14, and interior magnetic guiding loop III14 links to each other by permanent magnet II16 with interior magnetic guiding loop I1.
Used interior magnetic guiding loop I1, interior magnetic guiding loop II12, interior magnetic guiding loop III14, outer magnetic guiding loop I5, the outer magnetic guiding loop II9 of the invention described above technological scheme all makes with the good material of magnetic property, as magnetic materials such as electrical pure iron, various carbon steel, cast iron, cast steel, alloyed steel, 1J50 and 1J79 etc.Stator core I2, stator core II11, stator core III15, rotor core I4, rotor core II6, rotor core III8, rotor core IV10 can form with magnetic property good electric thin steel sheet such as magnetic material punching presses such as electrical pure iron, electrical steel plate DR510, DR470, DW350,1J50 and the 1J79 system of changing.The material of permanent magnet I13, permanent magnet II16 is good rare-earth permanent magnet of magnetic property or ferrite permanent magnet, and permanent magnet I13, permanent magnet II16 are an axial annulus, magnetize vertically.The material of outer magnetism resistent ring 7 is metals such as copper, aluminium, titanium alloy.Paint-dipping drying forms after the good electromagnetic wire coiling of field coil 3 usefulness conductions.
Claims (6)
1, a kind of permanent magnet offset external rotor radial magnetic bearing is characterized in that: be made up of interior magnetic guiding loop, stator core, rotor core, outer magnetic guiding loop, outer magnetism resistent ring, permanent magnet, field coil (3), air gap (17).Rotor core internal surface and stator core outer surface leave certain clearance, form air gap (17), stator core comprises stator core I (2), stator core II (11) and stator core III (15), rotor core comprises rotor core I (4), rotor core II (6), rotor core III (8) and rotor core IV (10), interior magnetic guiding loop comprises interior magnetic guiding loop I (1), interior magnetic guiding loop II (12) and interior magnetic guiding loop III (14), outer magnetic guiding loop comprises outer magnetic guiding loop I (5) and outer magnetic guiding loop II (9), permanent magnet comprises permanent magnet I (13) and permanent magnet II (16), stator core I (2), stator core III (15) and stator core II (11) form the magnetic bearing right side respectively, in, left side X, 12 magnetic poles on the positive negative direction of Y, and all be wound with field coil (3) on 8 magnetic pole of the stator that stator core I (2) and stator core II (11) form, stator core I (2), the inside of stator core II (11) and stator core III (15) is respectively interior magnetic guiding loop I (1), interior magnetic guiding loop II (12) and interior magnetic guiding loop III (14), stator core I (2) and stator core II (11) outside are respectively rotor core I (4) and rotor core IV (10), stator core III (15) outside is rotor core II (6), outer magnetism resistent ring (7) and rotor core III (8), rotor core I (4), rotor core II (6) is outside to link to each other by outer magnetic guiding loop I (5), rotor core III (8), rotor core IV (10) is outside to link to each other by outer magnetic guiding loop II (9), outer magnetic guiding loop I (5), rotor core II (6) and outer magnetic guiding loop II (9), link to each other by outer magnetism resistent ring (7) between the rotor core III (8), interior magnetic guiding loop II (12) links to each other by permanent magnet I (13) with interior magnetic guiding loop III (14), and interior magnetic guiding loop III (14) links to each other by permanent magnet II (16) with interior magnetic guiding loop I (1).
2, permanent magnet offset external rotor radial magnetic bearing according to claim 1 is characterized in that: the field coil on described stator core I (2) and the stator core II (11) is controlled respectively.
3, permanent magnet offset external rotor radial magnetic bearing according to claim 1 is characterized in that: described permanent magnet I (13) and permanent magnet II (16) are axial annulus, magnetize vertically.
4, permanent magnet offset external rotor radial magnetic bearing according to claim 1 is characterized in that: described permanent magnet I (13) and permanent magnet II (16) all adopt rare earth permanent-magnetic material or ferrite permanent-magnet materials to make.
5, permanent magnet offset external rotor radial magnetic bearing according to claim 1 is characterized in that: magnetic guiding loop I (1), interior magnetic guiding loop II (12), interior magnetic guiding loop III (14), outer magnetic guiding loop I (5) and outer magnetic guiding loop II (9) all adopt the good material of magnetic property to make in described.
6, permanent magnet offset external rotor radial magnetic bearing according to claim 1 is characterized in that: the material of described outer magnetism resistent ring (7) is any one in copper, aluminium, the titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100650508A CN100441892C (en) | 2007-04-02 | 2007-04-02 | Permanent magnet polarized external rotor radial magnetic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100650508A CN100441892C (en) | 2007-04-02 | 2007-04-02 | Permanent magnet polarized external rotor radial magnetic bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101025200A true CN101025200A (en) | 2007-08-29 |
| CN100441892C CN100441892C (en) | 2008-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100650508A Expired - Fee Related CN100441892C (en) | 2007-04-02 | 2007-04-02 | Permanent magnet polarized external rotor radial magnetic bearing |
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| CN (1) | CN100441892C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881302A (en) * | 2010-07-09 | 2010-11-10 | 北京奇峰聚能科技有限公司 | Two-air-gap outer rotor radial hybrid magnetic bearing with fault-tolerant function |
| CN101886669A (en) * | 2010-07-09 | 2010-11-17 | 北京奇峰聚能科技有限公司 | Permanent-magnetic bias outer rotor radial magnetic bearing |
| CN102032270A (en) * | 2011-01-17 | 2011-04-27 | 鲁东大学 | Permanent magnetic and electromagnetic mixed radial bearing |
| CN102506070A (en) * | 2011-11-11 | 2012-06-20 | 北京奇峰聚能科技有限公司 | Outer rotor radial magnetic bearing |
| CN104201935A (en) * | 2014-08-06 | 2014-12-10 | 北京航空航天大学 | Four-degrees-of-freedom magnetic suspension flywheel |
| CN106655555A (en) * | 2016-10-13 | 2017-05-10 | 国网冀北电力有限公司技能培训中心 | Three-phase iron core-type wireless energy transfer-used radial rotary converter |
| CN107181359A (en) * | 2017-06-15 | 2017-09-19 | 深圳麦格动力技术有限公司 | Multilayer permanent magnetism off-set magnetic suspension unit, magnetic suspension motor and domestic air conditioning |
| CN111832127A (en) * | 2020-06-22 | 2020-10-27 | 北京控制工程研究所 | Lorentz force radial magnetic bearing design method |
| CN113541354A (en) * | 2021-06-04 | 2021-10-22 | 安徽华驰动能科技有限公司 | Sine wave rotor designed based on permanent magnet and inner rotor iron core eccentric structure |
| CN116658520A (en) * | 2023-05-05 | 2023-08-29 | 淮阴工学院 | Outer rotor radial six-pole three-degree-of-freedom alternating current-direct current hybrid magnetic bearing and parameter design method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6794780B2 (en) * | 1999-12-27 | 2004-09-21 | Lust Antriebstechnik Gmbh | Magnetic bearing system |
| CN1293319C (en) * | 2005-01-27 | 2007-01-03 | 北京航空航天大学 | Low-consumption permanent-magnet offset external rotor radial magnetic bearing |
| CN1285840C (en) * | 2005-05-09 | 2006-11-22 | 北京航空航天大学 | Permanent magnetism biased radial magnetic bearing in external rotor |
| CN1314906C (en) * | 2005-08-08 | 2007-05-09 | 北京航空航天大学 | Permanent magnet biased external rotor radial magnetic bearing |
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2007
- 2007-04-02 CN CNB2007100650508A patent/CN100441892C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881302A (en) * | 2010-07-09 | 2010-11-10 | 北京奇峰聚能科技有限公司 | Two-air-gap outer rotor radial hybrid magnetic bearing with fault-tolerant function |
| CN101886669A (en) * | 2010-07-09 | 2010-11-17 | 北京奇峰聚能科技有限公司 | Permanent-magnetic bias outer rotor radial magnetic bearing |
| CN102032270A (en) * | 2011-01-17 | 2011-04-27 | 鲁东大学 | Permanent magnetic and electromagnetic mixed radial bearing |
| CN102032270B (en) * | 2011-01-17 | 2012-07-25 | 鲁东大学 | Permanent magnetic and electromagnetic mixed radial bearing |
| CN102506070A (en) * | 2011-11-11 | 2012-06-20 | 北京奇峰聚能科技有限公司 | Outer rotor radial magnetic bearing |
| CN102506070B (en) * | 2011-11-11 | 2013-09-25 | 北京奇峰聚能科技有限公司 | Outer rotor radial magnetic bearing |
| CN104201935A (en) * | 2014-08-06 | 2014-12-10 | 北京航空航天大学 | Four-degrees-of-freedom magnetic suspension flywheel |
| CN104201935B (en) * | 2014-08-06 | 2016-04-20 | 北京航空航天大学 | A kind of four-degree-of-freedom magnetically levitated flywheel |
| CN106655555A (en) * | 2016-10-13 | 2017-05-10 | 国网冀北电力有限公司技能培训中心 | Three-phase iron core-type wireless energy transfer-used radial rotary converter |
| CN106655555B (en) * | 2016-10-13 | 2023-08-18 | 国网冀北电力有限公司技能培训中心 | Radial rotary converter for three-phase iron core type wireless energy transmission |
| CN107181359A (en) * | 2017-06-15 | 2017-09-19 | 深圳麦格动力技术有限公司 | Multilayer permanent magnetism off-set magnetic suspension unit, magnetic suspension motor and domestic air conditioning |
| CN107181359B (en) * | 2017-06-15 | 2023-07-25 | 北京昆腾迈格技术有限公司 | Multilayer permanent magnet bias magnetic suspension unit, magnetic suspension motor and household air conditioner |
| CN111832127A (en) * | 2020-06-22 | 2020-10-27 | 北京控制工程研究所 | Lorentz force radial magnetic bearing design method |
| CN111832127B (en) * | 2020-06-22 | 2024-02-09 | 北京控制工程研究所 | Lorentz force radial magnetic bearing design method |
| CN113541354A (en) * | 2021-06-04 | 2021-10-22 | 安徽华驰动能科技有限公司 | Sine wave rotor designed based on permanent magnet and inner rotor iron core eccentric structure |
| CN113541354B (en) * | 2021-06-04 | 2023-07-04 | 安徽华驰动能科技有限公司 | Sine wave rotor based on permanent magnet and inner rotor core eccentric structure design |
| CN116658520A (en) * | 2023-05-05 | 2023-08-29 | 淮阴工学院 | Outer rotor radial six-pole three-degree-of-freedom alternating current-direct current hybrid magnetic bearing and parameter design method |
| CN116658520B (en) * | 2023-05-05 | 2024-06-11 | 淮阴工学院 | Outer rotor radial six-pole three-degree-of-freedom alternating current-direct current hybrid magnetic bearing and parameter design method |
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