JP6893116B2 - 磁気軸受 - Google Patents
磁気軸受 Download PDFInfo
- Publication number
- JP6893116B2 JP6893116B2 JP2017089452A JP2017089452A JP6893116B2 JP 6893116 B2 JP6893116 B2 JP 6893116B2 JP 2017089452 A JP2017089452 A JP 2017089452A JP 2017089452 A JP2017089452 A JP 2017089452A JP 6893116 B2 JP6893116 B2 JP 6893116B2
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- yoke
- thickness
- magnetic
- magnetic bearing
- 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.)
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- 239000000696 magnetic material Substances 0.000 claims description 9
- 230000005389 magnetism Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910017061 Fe Co Inorganic materials 0.000 description 1
- 229910017082 Fe-Si Inorganic materials 0.000 description 1
- 229910017133 Fe—Si Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
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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
- F16C32/0408—Passive magnetic bearings
- F16C32/041—Passive magnetic bearings with permanent magnets on one part attracting the other part
- F16C32/0417—Passive magnetic bearings with permanent magnets on one part attracting the other part for axial load mainly
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- 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
- F16C32/0408—Passive magnetic bearings
- F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
-
- 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
- F16C32/0408—Passive magnetic bearings
- F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
- F16C32/0427—Passive magnetic bearings with permanent magnets on both parts repelling each other for axial load mainly
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
図1、図2は、第1実施形態に係る磁気軸受11を示している。
上記第1実施形態によれば、第1磁石11と第2磁石12は同心状に配置され、第1磁石11と第2磁石12の一方は、第1ヨーク13と第2ヨーク14を有し、第1ヨーク13及び第2ヨーク14は、第1磁石11と第2磁石12の変動量の許容量とほぼ等しい厚みH2を有している。このため、第1磁石11に対して第2磁石12が変動した場合においても、十分な吸引力を得ることができ、第1磁石11に対する第2磁石12の変動を抑制することが可能である。
図7、図8は、第2実施形態に係る磁気軸受の例を示している。
第2実施形態によっても第1実施形態と同様の効果を得ることができる。
図11は、第1実施形態及び第2実施形態の磁気軸受10が適用されるファンモータ20の一例を示している。ファンモータ20は、例えば遠心ファンとしてのターボファンを用いている。
Claims (6)
- 軸方向に磁化された環状の第1磁石と、
前記第1磁石と同心状に配置され、前記軸方向に磁化された環状の第2磁石と、
前記第2磁石のみに設けられ、前記第2磁石の前記軸方向の第1の面に設けられた第1磁性体と、
前記第2磁石のみに設けられ、前記第2磁石の前記軸方向の第1の面と平行する第2の面に設けられた第2磁性体と、
を具備し、
前記第1磁性体及び前記第2磁性体の厚みは、前記第1磁石に対する前記第2磁石の軸方向のスラスト方向の最大限の変動量以下で0.1mm以上であることを特徴とする磁気軸受。 - 前記第1磁性体及び前記第2磁性体の厚みは、0.1mm以上で1.5mm以下の範囲であることを特徴とする請求項1記載の磁気軸受。
- 前記第1磁石の厚みは、前記第2磁石の厚みと等しいことを特徴とする請求項1記載の磁気軸受。
- 前記第1磁石の厚みは、前記第2磁石の厚みより大きく、前記第2磁石と前記第1磁性体及び前記第2磁性体の合計の厚みより小さいことを特徴とする請求項1記載の磁気軸受。
- 前記第2磁石は、前記第1磁石の外側に配置されることを特徴とする請求項1記載の磁気軸受。
- 前記第2磁石は、前記第1磁石の内側に配置されることを特徴とする請求項1記載の磁気軸受。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017089452A JP6893116B2 (ja) | 2017-04-28 | 2017-04-28 | 磁気軸受 |
TW107103614A TWI743305B (zh) | 2017-04-28 | 2018-02-01 | 磁性軸承 |
CN201880020175.5A CN110637168B (zh) | 2017-04-28 | 2018-02-08 | 磁性轴承 |
PCT/JP2018/004449 WO2018198481A1 (ja) | 2017-04-28 | 2018-02-08 | 磁気軸受 |
US16/594,547 US11118625B2 (en) | 2017-04-28 | 2019-10-07 | Magnetic bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017089452A JP6893116B2 (ja) | 2017-04-28 | 2017-04-28 | 磁気軸受 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018189105A JP2018189105A (ja) | 2018-11-29 |
JP6893116B2 true JP6893116B2 (ja) | 2021-06-23 |
Family
ID=63919615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017089452A Active JP6893116B2 (ja) | 2017-04-28 | 2017-04-28 | 磁気軸受 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11118625B2 (ja) |
JP (1) | JP6893116B2 (ja) |
CN (1) | CN110637168B (ja) |
TW (1) | TWI743305B (ja) |
WO (1) | WO2018198481A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11014692B2 (en) * | 2015-08-21 | 2021-05-25 | Philip L Swan | Elevated load-bearing platform |
KR102450002B1 (ko) * | 2017-06-21 | 2022-10-04 | 도쿄엘렉트론가부시키가이샤 | 기판 처리 시스템, 기판 처리 방법 및 컴퓨터 기억 매체 |
JP2020165527A (ja) * | 2019-03-29 | 2020-10-08 | 日本電産株式会社 | 気体動圧軸受、モータおよびファンモータ |
JP7400249B2 (ja) * | 2019-07-31 | 2023-12-19 | ニデック株式会社 | 気体動圧軸受、モータ、ファンモータおよび直列式ファンモータ |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59155322A (ja) | 1983-02-24 | 1984-09-04 | Shionogi & Co Ltd | 抗腫瘍性物質ks−pmおよびその製造法 |
JPS59155322U (ja) * | 1983-04-02 | 1984-10-18 | 東北金属工業株式会社 | 磁気軸受 |
JPS62270824A (ja) * | 1986-05-16 | 1987-11-25 | Natl Aerospace Lab | 軸方向剛性の高いラジアル制御型磁気軸受 |
JPH0820620B2 (ja) * | 1988-12-09 | 1996-03-04 | 富士通株式会社 | 回転多面鏡装置 |
JPH03215153A (ja) * | 1990-01-19 | 1991-09-20 | Matsushita Electric Ind Co Ltd | モータ |
JP3059244B2 (ja) * | 1991-05-30 | 2000-07-04 | 日本電産株式会社 | スピンドルモータ |
JPH10225080A (ja) * | 1997-02-12 | 1998-08-21 | Fuji Xerox Co Ltd | モータ |
JPH11311252A (ja) * | 1998-04-28 | 1999-11-09 | Seiko Instruments Inc | スラスト軸受け、軸受け装置、モータ、及び回転体装置 |
JPH11344129A (ja) | 1998-05-29 | 1999-12-14 | Nok Corp | 磁性流体を利用した密封装置 |
DE10022062A1 (de) * | 2000-05-06 | 2001-11-08 | Leybold Vakuum Gmbh | Maschine, vorzugsweise Vakuumpumpe, mit Magnetlagern |
CN1651779A (zh) * | 2004-02-03 | 2005-08-10 | 柯寅昌 | 磁悬浮轴承 |
JP2009192041A (ja) * | 2008-02-18 | 2009-08-27 | Tokyo Univ Of Science | スラスト力発生装置及び該スラスト力発生装置を適用した電磁機械 |
CN103470631B (zh) * | 2013-09-18 | 2016-06-22 | 北京航空航天大学 | 一种吸力型组合磁体轴向被动磁轴承 |
CN203722347U (zh) * | 2014-02-27 | 2014-07-16 | 讯凯国际股份有限公司 | 薄型化轴向气隙式马达 |
CN106090010B (zh) * | 2016-07-26 | 2018-06-29 | 北京石油化工学院 | 一种双永磁体偏转洛伦兹力磁轴承 |
-
2017
- 2017-04-28 JP JP2017089452A patent/JP6893116B2/ja active Active
-
2018
- 2018-02-01 TW TW107103614A patent/TWI743305B/zh active
- 2018-02-08 WO PCT/JP2018/004449 patent/WO2018198481A1/ja active Application Filing
- 2018-02-08 CN CN201880020175.5A patent/CN110637168B/zh active Active
-
2019
- 2019-10-07 US US16/594,547 patent/US11118625B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN110637168A (zh) | 2019-12-31 |
US20200032844A1 (en) | 2020-01-30 |
US11118625B2 (en) | 2021-09-14 |
CN110637168B (zh) | 2021-03-12 |
JP2018189105A (ja) | 2018-11-29 |
WO2018198481A1 (ja) | 2018-11-01 |
TWI743305B (zh) | 2021-10-21 |
TW201839282A (zh) | 2018-11-01 |
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