HK1023858A1 - Dc motor actuator to create radial force - Google Patents

Dc motor actuator to create radial force

Info

Publication number
HK1023858A1
HK1023858A1 HK00102978A HK00102978A HK1023858A1 HK 1023858 A1 HK1023858 A1 HK 1023858A1 HK 00102978 A HK00102978 A HK 00102978A HK 00102978 A HK00102978 A HK 00102978A HK 1023858 A1 HK1023858 A1 HK 1023858A1
Authority
HK
Hong Kong
Prior art keywords
radial force
motor actuator
spindle
create radial
magnets
Prior art date
Application number
HK00102978A
Inventor
Gunter Karl Heine
Hans Leuthold
Christian Fleury
Original Assignee
Seagate Technology Llc
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 Seagate Technology Llc filed Critical Seagate Technology Llc
Publication of HK1023858A1 publication Critical patent/HK1023858A1/en

Links

Classifications

    • 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
    • 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
    • F16C32/0444—Details of devices to control the actuation of the electromagnets
    • 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
    • F16C32/0493—Active magnetic bearings for rotary movement integrated in an electrodynamic machine, e.g. self-bearing motor
    • F16C32/0497—Active magnetic bearings for rotary movement integrated in an electrodynamic machine, e.g. self-bearing motor generating torque and radial force
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • 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
    • F16C2370/00—Apparatus relating to physics, e.g. instruments
    • F16C2370/12—Hard disk drives or the like
    • 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
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Windings For Motors And Generators (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

A polyphase spindle DC motor (figure 1A, 1B) providing a torque (figure 1A) and an additional radial force (F, figure 1B) within the spindle motor utilizing the spindle components (magnets and stator laminations). Interaction between the magnets and currents flowing through conductors create the torque and radial force (F) required for overall stability and efficient operation of the system.
HK00102978A 1997-03-19 2000-05-18 Dc motor actuator to create radial force HK1023858A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1997/004197 WO1998042063A1 (en) 1997-03-19 1997-03-19 Dc motor actuator to create radial force

Publications (1)

Publication Number Publication Date
HK1023858A1 true HK1023858A1 (en) 2000-09-22

Family

ID=22260545

Family Applications (1)

Application Number Title Priority Date Filing Date
HK00102978A HK1023858A1 (en) 1997-03-19 2000-05-18 Dc motor actuator to create radial force

Country Status (6)

Country Link
JP (1) JP4034358B2 (en)
KR (1) KR100393858B1 (en)
DE (1) DE19782264T1 (en)
GB (1) GB2337647B (en)
HK (1) HK1023858A1 (en)
WO (1) WO1998042063A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6304359B1 (en) * 1999-07-20 2001-10-16 Lasesys Corporation High scan efficiency galvanometric laser scanning device
DE10034662A1 (en) 2000-07-16 2002-01-24 Wolfgang Amrhein Expensive electrical drive for generating load capacities and torques
DE102006042539C5 (en) * 2006-09-11 2016-10-20 Gottfried Wilhelm Leibniz Universität Hannover Work spindle and method for operating a work spindle
JP4715934B2 (en) 2009-02-20 2011-07-06 株式会社デンソー 5-phase motor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949785B2 (en) * 1977-12-05 1984-12-05 株式会社セコ−技研 DC motor with double armature windings
US4774428A (en) * 1987-05-15 1988-09-27 Synektron Corporation Compact three-phase permanent magnet rotary machine having low vibration and high performance
US5164622A (en) * 1990-06-14 1992-11-17 Applied Motion Products, Inc. High pole density three phase motor
US5231324A (en) * 1990-07-19 1993-07-27 Kabushiki Kaisha Toshiba Three-phase armature winding
US5459383A (en) * 1991-02-07 1995-10-17 Quantum Corporation Robust active damping control system
US5396388A (en) * 1992-02-27 1995-03-07 Censtor Corp. Compact, high-speed, rotary actuator and transducer assembly with reduced moment of inertia and mass-balanced structural overlap with drive motor and organizing method for the same
US5376851A (en) * 1992-05-18 1994-12-27 Electric Power Research Institute, Inc. Variable reluctance motor with full and short pitch windings
DE69503335T2 (en) * 1994-10-28 1998-10-29 Hewlett Packard Co Compensation of media reluctance forces in a DC motor

Also Published As

Publication number Publication date
JP2002511228A (en) 2002-04-09
KR20000076393A (en) 2000-12-26
KR100393858B1 (en) 2003-08-06
GB2337647A (en) 1999-11-24
GB9921852D0 (en) 1999-11-17
WO1998042063A1 (en) 1998-09-24
GB2337647B (en) 2001-04-18
JP4034358B2 (en) 2008-01-16
DE19782264T1 (en) 2000-05-11

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20050319