EP2302217A3 - Bearing cooling structure of heat dissipating fan - Google Patents

Bearing cooling structure of heat dissipating fan Download PDF

Info

Publication number
EP2302217A3
EP2302217A3 EP10158579A EP10158579A EP2302217A3 EP 2302217 A3 EP2302217 A3 EP 2302217A3 EP 10158579 A EP10158579 A EP 10158579A EP 10158579 A EP10158579 A EP 10158579A EP 2302217 A3 EP2302217 A3 EP 2302217A3
Authority
EP
European Patent Office
Prior art keywords
bearing
rotor
axial hole
axle
heat dissipating
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.)
Withdrawn
Application number
EP10158579A
Other languages
German (de)
French (fr)
Other versions
EP2302217A2 (en
Inventor
Liu Ching-Tang
Lu Tai-Ying
Yi Dong-Sheng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Protechnic Electric Co Ltd
Original Assignee
Protechnic Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Protechnic Electric Co Ltd filed Critical Protechnic Electric Co Ltd
Publication of EP2302217A2 publication Critical patent/EP2302217A2/en
Publication of EP2302217A3 publication Critical patent/EP2302217A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • F04D29/053—Shafts
    • 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
    • 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
    • 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
    • F04D29/10—Shaft sealings
    • F04D29/102—Shaft sealings especially 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

A non-contact dust-proof structure of a heat dissipating fan includes a stator and a rotor. A bearing is fixed in an axial hole of a shaft of the stator. The rotor has an axle which is inserted in the bearing. The rotor further comprises an axle base disposed at a distal end of the axle. The axle base is inserted in the axial hole of the shaft. A gap is defined between an outer surface of the axle base and an inner surface of the axial hole. The outer surface of the axle base is formed with a plurality of air guiding grooves adapted to exhaust the air in the bearing. The air guiding grooves are spiral grooves or V-like grooves. When the rotor is turned at a high speed, the air guiding grooves will form an exhaust effect, achieving a non-contact dust-proof protection structure to block external dust or water from entering the bearing in the axial hole, so that the running of the bearing won't be influenced. The present invention ensures that the heat dissipating fan has a better function and a longer service life.
EP10158579A 2009-09-25 2010-03-31 Bearing cooling structure of heat dissipating fan Withdrawn EP2302217A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920195454.3U CN201526492U (en) 2009-09-25 2009-09-25 Non-contact dustproof structure of radiator fan

Publications (2)

Publication Number Publication Date
EP2302217A2 EP2302217A2 (en) 2011-03-30
EP2302217A3 true EP2302217A3 (en) 2012-11-07

Family

ID=42154871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10158579A Withdrawn EP2302217A3 (en) 2009-09-25 2010-03-31 Bearing cooling structure of heat dissipating fan

Country Status (4)

Country Link
US (1) US20110073280A1 (en)
EP (1) EP2302217A3 (en)
CN (1) CN201526492U (en)
WO (1) WO2011035636A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201526492U (en) * 2009-09-25 2010-07-14 东莞寮步新旧围永立电机厂 Non-contact dustproof structure of radiator fan
CN102230474B (en) * 2011-06-28 2013-03-27 广州南科集成电子有限公司 Waterproof and dustproof fan
JP6090733B2 (en) * 2012-05-29 2017-03-08 ミネベアミツミ株式会社 Blower shaft and blower
CN103511347B (en) * 2012-06-19 2015-12-02 奇鋐科技股份有限公司 Fan structure
TWI509158B (en) 2012-09-25 2015-11-21 Sunon Electronics Kunshan Co Ltd Centrifugal cooling fan
EP3486533B1 (en) * 2017-11-15 2022-08-24 Elektrosil GmbH Fan
KR102659848B1 (en) * 2018-02-21 2024-04-22 캔두 에너지 인코포레이티드 Nuclear coolant pump seals and sealing methods
US20190353177A1 (en) * 2018-05-21 2019-11-21 Asia Vital Components Co., Ltd. Fan frame seat and fan thereof
CN111867337B (en) * 2020-08-05 2022-08-23 维沃移动通信有限公司 Heat sink device
CN111963476A (en) * 2020-08-13 2020-11-20 惠州惠和兴电子有限公司 Well pipe sheath that radiator fan used

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63224646A (en) * 1987-03-12 1988-09-19 Fuji Electric Co Ltd Shaft seal device of rotating machine
WO2006082864A1 (en) * 2005-02-04 2006-08-10 Osaka Vacuum, Ltd. Seal structure of turbo-molecular pump
JP2007198291A (en) * 2006-01-27 2007-08-09 Shimadzu Corp Rotating equipment
US20080073991A1 (en) * 2006-09-27 2008-03-27 Foxconn Technology Co., Ltd. Bearing assembly for cooling fan

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969797A (en) * 1989-03-22 1990-11-13 Matsushita Electric Industrial Co., Ltd. Fan motor
US6320291B1 (en) * 1999-08-18 2001-11-20 Delta Electronics, Inc. Construction of motor
JP2002147388A (en) * 2001-08-27 2002-05-22 Mitsubishi Electric Corp Bearing
TW534241U (en) * 2002-07-10 2003-05-21 Sunonwealth Electr Mach Ind Co Dustproof bearing structure
JP2004060514A (en) * 2002-07-29 2004-02-26 Matsushita Electric Ind Co Ltd Motor-driven blower and electric vacuum cleaner
CN2566039Y (en) * 2002-07-31 2003-08-13 建准电机工业股份有限公司 Bearing with dust-proof structure for electric motor
TWM271966U (en) * 2005-01-28 2005-08-01 Foxconn Tech Co Ltd Oil-retaining structure
CN100417826C (en) * 2005-09-09 2008-09-10 富准精密工业(深圳)有限公司 Fluid bearing die set
CN2864167Y (en) * 2005-12-29 2007-01-31 赵汉高 Dust-proof noise reduction DC fan
CN201045354Y (en) * 2007-05-29 2008-04-09 姜维雁 Skidproof connection shaft seat
CN201121609Y (en) * 2007-08-15 2008-09-24 东莞动利电子有限公司 Oil-resistant dustproof structure for DC fan bearing
DE102008052469B4 (en) * 2007-11-30 2020-10-08 Minebea Mitsumi Inc. Spindle motor with fluid dynamic bearing system and fixed shaft
CN201196160Y (en) * 2008-04-25 2009-02-18 东莞寮步新旧围永立电机厂 Non-contact type bearing seal structure
CN201526492U (en) * 2009-09-25 2010-07-14 东莞寮步新旧围永立电机厂 Non-contact dustproof structure of radiator fan
US8353671B2 (en) * 2009-10-15 2013-01-15 Asia Vital Components Co., Ltd. Fan with pressurizing structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63224646A (en) * 1987-03-12 1988-09-19 Fuji Electric Co Ltd Shaft seal device of rotating machine
WO2006082864A1 (en) * 2005-02-04 2006-08-10 Osaka Vacuum, Ltd. Seal structure of turbo-molecular pump
JP2007198291A (en) * 2006-01-27 2007-08-09 Shimadzu Corp Rotating equipment
US20080073991A1 (en) * 2006-09-27 2008-03-27 Foxconn Technology Co., Ltd. Bearing assembly for cooling fan

Also Published As

Publication number Publication date
WO2011035636A1 (en) 2011-03-31
US20110073280A1 (en) 2011-03-31
EP2302217A2 (en) 2011-03-30
JP3164720U (en) 2010-12-16
CN201526492U (en) 2010-07-14

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