JP5892375B2 - 動圧軸受装置およびファン - Google Patents
動圧軸受装置およびファン Download PDFInfo
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- JP5892375B2 JP5892375B2 JP2012102725A JP2012102725A JP5892375B2 JP 5892375 B2 JP5892375 B2 JP 5892375B2 JP 2012102725 A JP2012102725 A JP 2012102725A JP 2012102725 A JP2012102725 A JP 2012102725A JP 5892375 B2 JP5892375 B2 JP 5892375B2
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- 239000010687 lubricating oil Substances 0.000 claims description 81
- 239000012530 fluid Substances 0.000 claims description 17
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000576 Laminated steel Inorganic materials 0.000 description 1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/057—Bearings hydrostatic; hydrodynamic
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/74—Sealings of sliding-contact bearings
- F16C33/741—Sealings of sliding-contact bearings by means of a fluid
- F16C33/743—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap
- F16C33/745—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap by capillary action
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
- F04D25/062—Details of the bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
- F04D25/0626—Details of the lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/051—Axial thrust balancing
- F04D29/0513—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/063—Lubrication specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
-
- 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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
- F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
- F16C17/107—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one surface for radial load and at least one surface for axial load
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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
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
- F16C32/0633—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being retained in a gap
-
- 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
- F16C2360/00—Engines or pumps
- F16C2360/46—Fans, e.g. ventilators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sliding-Contact Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing Of Bearings (AREA)
Description
2 静止部
3 回転部
4 軸受機構
5 袋構造
11 モータ
12 インペラ
22 ロータマグネット
25 ブッシング
32 ステータ
41 シャフト
42 スラストプレート
44,44a 軸受部
45 スラストキャップ
46 潤滑油
47 スリーブ
48 軸受ハウジング
49,49a〜49c 環状部材
51 ラジアル間隙
52 第1下部スラスト間隙
53 第2下部スラスト間隙
55 シール間隙
55a,54a シール部
68 ラジアル動圧軸受部
122 翼
127 貫通孔
128 流路
210 ロータホルダ
252 外環状部
253 環状部
254 突出部
331 磁性部材
411 (シャフトの)外周面
413 取付面
445 内環状部
445a 環状凹部
481 環状上部
482 環状突起部
491,491b 天蓋部
492,492b 筒状部
501,501a,506 横間隙
502,504 縦間隙
503 傾斜間隙
691 第1下スラスト動圧軸受部
692 第2下スラスト動圧軸受部
811,812 空間
J1 中心軸
Claims (4)
- 軸受部と、 前記軸受部に挿入され、インペラが直接的または1つ以上の部材を介して取り付けられる予定の取付面を外周面に有し、前記軸受部に対して中心軸を中心として相対回転するシャフトと、 前記軸受部の内周面、前記シャフトの外周面、および、前記軸受部の前記内周面と前記シャフトの前記外周面との間のラジアル間隙に存在する潤滑油によって構成され、前記潤滑油に流体動圧を発生させるラジアル動圧軸受部と、 前記ラジアル動圧軸受部の上側にて、前記軸受部の前記内周面と前記シャフトの前記外周面とによって構成されるシール間隙に、前記潤滑油の界面が位置するシール部と、 軸方向において、前記シール部と前記取付面との間にて前記シャフトに固定され、前記シール間隙の開口よりも径方向外側まで広がる環状の環状部材と、を備え、 前記環状部材が、 前記中心軸を中心とする略円環板状であり、軸方向において、前記シール部と前記取付面との間にて前記シャフトに固定される天蓋部と、 前記天蓋部から下方へ延びて前記軸受部の外周面と径方向に対向する筒状部を有し、 前記軸受部の前記上面と前記天蓋部の下面との間に径方向に広がる微小な横間隙が構成され、 前記筒状部の内周面と前記軸受部の前記外周面との間に、軸方向に延びる微小な縦間隙が構成され、 前記縦間隙が、前記横間隙の径方向外側の端部と連接し、 前記シール間隙が、前記横間隙および前記縦間隙を介して外部空間と連絡する動圧軸受装置。
- 軸受部と、 前記軸受部に挿入され、インペラが直接的または1つ以上の部材を介して取り付けられる予定の取付面を外周面に有し、前記軸受部に対して中心軸を中心として相対回転するシャフトと、 前記軸受部の内周面、前記シャフトの外周面、および、前記軸受部の前記内周面と前記シャフトの前記外周面との間のラジアル間隙に存在する潤滑油によって構成され、前記潤滑油に流体動圧を発生させるラジアル動圧軸受部と、 前記ラジアル動圧軸受部の上側にて、前記軸受部の前記内周面と前記シャフトの前記外周面とによって構成されるシール間隙に、前記潤滑油の界面が位置するシール部と、 軸方向において、前記シール部と前記取付面との間にて前記シャフトに固定され、前記シール間隙の開口よりも径方向外側まで広がる環状の環状部材と、を備え、 前記軸受部が、前記軸受部の上面から上方に向かって突出する環状突起部を有し、 前記環状部材が、前記中心軸を中心とする略円環板状であり、 前記環状部材の外周面が、前記環状突起部の内周面と径方向に対向し、 前記上面と前記環状部材の下面との間に径方向に広がる微小な横間隙が構成され、 前記環状部材の前記外周面と前記環状突起部の前記内周面との間に、軸方向に延びる微小な縦間隙が構成され、 前記縦間隙が、前記横間隙の径方向外側の端部と連接し、 前記シール間隙が、前記横間隙および前記縦間隙を介して外部空間と連絡する動圧軸受装置。
- 前記縦間隙の径方向の最小幅が、前記シール間隙の前記開口の径方向の最大幅よりも小さい、請求項1または2に記載の動圧軸受装置。
- 前記横間隙の軸方向の最小幅が、前記シール間隙の前記開口の径方向の最大幅よりも小さい、請求項1ないし3に記載の動圧軸受装置。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012102725A JP5892375B2 (ja) | 2011-06-30 | 2012-04-27 | 動圧軸受装置およびファン |
US13/523,478 US20130004348A1 (en) | 2011-06-30 | 2012-06-14 | Dynamic pressure bearing apparatus and fan |
CN2012102256390A CN102852968A (zh) | 2011-06-30 | 2012-06-29 | 动压轴承装置以及风扇 |
CN201510591259.2A CN105114351B (zh) | 2011-06-30 | 2012-06-29 | 动压轴承装置以及风扇 |
CN2012203145333U CN202971550U (zh) | 2011-06-30 | 2012-06-29 | 动压轴承装置以及风扇 |
US14/513,612 US9303653B2 (en) | 2011-06-30 | 2014-10-14 | Dynamic pressure bearing apparatus and fan |
US15/051,795 US9822787B2 (en) | 2011-06-30 | 2016-02-24 | Dynamic pressure bearing apparatus and fan |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011146392 | 2011-06-30 | ||
JP2011146392 | 2011-06-30 | ||
JP2011179970 | 2011-08-19 | ||
JP2011179970 | 2011-08-19 | ||
JP2012102725A JP5892375B2 (ja) | 2011-06-30 | 2012-04-27 | 動圧軸受装置およびファン |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013061063A JP2013061063A (ja) | 2013-04-04 |
JP5892375B2 true JP5892375B2 (ja) | 2016-03-23 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2012102725A Expired - Fee Related JP5892375B2 (ja) | 2011-06-30 | 2012-04-27 | 動圧軸受装置およびファン |
Country Status (3)
Country | Link |
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US (3) | US20130004348A1 (ja) |
JP (1) | JP5892375B2 (ja) |
CN (3) | CN105114351B (ja) |
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JP5892375B2 (ja) | 2011-06-30 | 2016-03-23 | 日本電産株式会社 | 動圧軸受装置およびファン |
TWI534352B (zh) * | 2013-10-23 | 2016-05-21 | 台達電子工業股份有限公司 | 薄型風扇 |
US11268522B2 (en) * | 2014-07-09 | 2022-03-08 | Apple Inc. | Adhesive joint features |
DE102014018380A1 (de) | 2014-12-15 | 2016-06-16 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem |
US10519966B2 (en) * | 2014-12-22 | 2019-12-31 | Eagle Industry Co., Ltd. | Plain bearing and pump |
WO2016183787A1 (zh) * | 2015-05-19 | 2016-11-24 | 罗立峰 | 一种槽式动压气体径向轴承 |
SG11201709526TA (en) * | 2015-05-19 | 2017-12-28 | Lifeng Luo | Hybrid dynamic pressure gas radial bearing |
JP6425230B2 (ja) * | 2016-01-15 | 2018-11-21 | ミネベアミツミ株式会社 | ファン装置及びそのファン装置の製造方法 |
JP6699213B2 (ja) | 2016-02-12 | 2020-05-27 | 日本電産株式会社 | 電動機付き減速機 |
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JP2019060472A (ja) * | 2017-09-28 | 2019-04-18 | 日本電産株式会社 | 軸受装置、モータおよびファンモータ |
JP2019116848A (ja) * | 2017-12-26 | 2019-07-18 | 日本電産株式会社 | 遠心ファン |
US11136999B2 (en) * | 2018-02-26 | 2021-10-05 | Asia Vital Components Co., Ltd | Balance structure of fan wheel |
JP7210886B2 (ja) * | 2018-03-13 | 2023-01-24 | 日本電産株式会社 | モータおよびファンモータ |
JP2020165471A (ja) * | 2019-03-29 | 2020-10-08 | 日本電産株式会社 | 気体動圧軸受、モータおよび送風装置 |
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2012
- 2012-04-27 JP JP2012102725A patent/JP5892375B2/ja not_active Expired - Fee Related
- 2012-06-14 US US13/523,478 patent/US20130004348A1/en not_active Abandoned
- 2012-06-29 CN CN201510591259.2A patent/CN105114351B/zh active Active
- 2012-06-29 CN CN2012203145333U patent/CN202971550U/zh not_active Expired - Fee Related
- 2012-06-29 CN CN2012102256390A patent/CN102852968A/zh active Pending
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- 2014-10-14 US US14/513,612 patent/US9303653B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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CN202971550U (zh) | 2013-06-05 |
JP2013061063A (ja) | 2013-04-04 |
US9303653B2 (en) | 2016-04-05 |
US20130004348A1 (en) | 2013-01-03 |
US20150030481A1 (en) | 2015-01-29 |
US20160169242A1 (en) | 2016-06-16 |
US9822787B2 (en) | 2017-11-21 |
CN105114351B (zh) | 2018-09-11 |
CN105114351A (zh) | 2015-12-02 |
CN102852968A (zh) | 2013-01-02 |
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