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WO1998015050A3 - Drive arrangement with electromagnetic bearing means and elastically pivotable centering element - Google Patents

Drive arrangement with electromagnetic bearing means and elastically pivotable centering element Download PDF

Info

Publication number
WO1998015050A3
WO1998015050A3 PCT/IB1997/001181 IB9701181W WO9815050A3 WO 1998015050 A3 WO1998015050 A3 WO 1998015050A3 IB 9701181 W IB9701181 W IB 9701181W WO 9815050 A3 WO9815050 A3 WO 9815050A3
Authority
WO
WIPO (PCT)
Prior art keywords
centering
centering element
drive arrangement
bearing means
electromagnetic bearing
Prior art date
Application number
PCT/IB1997/001181
Other languages
French (fr)
Other versions
WO1998015050A2 (en
Inventor
Rosmalen Gerard Eduard Van
Leest Johannes Henricus Fr Van
Original Assignee
Philips Electronics Nv
Philips Norden Ab
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 Philips Electronics Nv, Philips Norden Ab filed Critical Philips Electronics Nv
Priority to KR1019980704099A priority Critical patent/KR19990071819A/en
Priority to JP10516345A priority patent/JP2000501600A/en
Priority to EP97940297A priority patent/EP0870356A2/en
Publication of WO1998015050A2 publication Critical patent/WO1998015050A2/en
Publication of WO1998015050A3 publication Critical patent/WO1998015050A3/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
    • H02K7/086—Structural association with bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/121—Mechanical drive devices for polygonal mirrors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • 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
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Automatic Assembly (AREA)

Abstract

A drive arrangement comprises a first body (1) and a second body (3) which is rotatable relative thereto, electromagnetic means for rotating the second body about an axis of rotation (5), and electromagnetic bearing means (1b, 3a) for supporting the second body relative to the first body without mechanical contact. One of the bodies has a rod-shaped centering element (7) and the other body has a central opening (9) with a centering wall (9a) surrounding the axis of rotation, a centering portion (7a) of the centering element engaging the central opening with clearance. To form an emergency bearing the rod-shaped centering element is elastically pivotable, the centering portion being capable of assuming not only a central position but also positions which are radially offset from this central position as a result of contact with the centering wall during rotation of the second body.
PCT/IB1997/001181 1996-10-02 1997-09-29 Drive arrangement with electromagnetic bearing means and elastically pivotable centering element WO1998015050A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019980704099A KR19990071819A (en) 1996-10-02 1997-09-29 Drive device and elastic rotary centering element with electromagnetic bearing means
JP10516345A JP2000501600A (en) 1996-10-02 1997-09-29 Drive with electromagnetic bearing means and resiliently rotatable centering part
EP97940297A EP0870356A2 (en) 1996-10-02 1997-09-29 Drive arrangement with electromagnetic bearing means and elastically pivotable centering element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96202746.2 1996-10-02
EP96202746 1996-10-02

Publications (2)

Publication Number Publication Date
WO1998015050A2 WO1998015050A2 (en) 1998-04-09
WO1998015050A3 true WO1998015050A3 (en) 1998-06-25

Family

ID=8224454

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1997/001181 WO1998015050A2 (en) 1996-10-02 1997-09-29 Drive arrangement with electromagnetic bearing means and elastically pivotable centering element

Country Status (5)

Country Link
EP (1) EP0870356A2 (en)
JP (1) JP2000501600A (en)
KR (1) KR19990071819A (en)
CN (1) CN1210630A (en)
WO (1) WO1998015050A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102944933B (en) * 2012-11-27 2016-04-06 凌昆 Hypervelocity laser rotary scanning mirror

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959673A (en) * 1974-12-19 1976-05-25 General Scanning, Inc. Oscillation motors
US5130589A (en) * 1990-03-16 1992-07-14 Ebara Corporation Imbalance correcting apparatus for a rotor
EP0717489A2 (en) * 1994-12-15 1996-06-19 Canon Kabushiki Kaisha Scanner motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959673A (en) * 1974-12-19 1976-05-25 General Scanning, Inc. Oscillation motors
US5130589A (en) * 1990-03-16 1992-07-14 Ebara Corporation Imbalance correcting apparatus for a rotor
EP0717489A2 (en) * 1994-12-15 1996-06-19 Canon Kabushiki Kaisha Scanner motor

Also Published As

Publication number Publication date
CN1210630A (en) 1999-03-10
WO1998015050A2 (en) 1998-04-09
EP0870356A2 (en) 1998-10-14
JP2000501600A (en) 2000-02-08
KR19990071819A (en) 1999-09-27

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