JPS5771260A - Actuator - Google Patents

Actuator

Info

Publication number
JPS5771260A
JPS5771260A JP14532580A JP14532580A JPS5771260A JP S5771260 A JPS5771260 A JP S5771260A JP 14532580 A JP14532580 A JP 14532580A JP 14532580 A JP14532580 A JP 14532580A JP S5771260 A JPS5771260 A JP S5771260A
Authority
JP
Japan
Prior art keywords
magnetic
gap
movable coil
yoke
filled
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.)
Pending
Application number
JP14532580A
Other languages
Japanese (ja)
Inventor
Yoshio Furuishi
Moichi Sakabe
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14532580A priority Critical patent/JPS5771260A/en
Publication of JPS5771260A publication Critical patent/JPS5771260A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/035—DC motors; Unipolar motors
    • H02K41/0352—Unipolar motors
    • H02K41/0354—Lorentz force motors, e.g. voice coil motors
    • H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

PURPOSE:To reduce the magnetic reluctance in the void and to improve the cooling efficiency of the movable coil for the subject actuator by a method wherein magnetic fluid is filled in between the magnetic gap, formed between the shaft section of the inner yoke and the outer yoke, and the movable coil which was inserted in said gap. CONSTITUTION:The magnetic fluid 11, wherein fine grains of iron oxide of several tens-several hundreds Angstrom , for example, are stably dispersed in water or ester oil, is filled in the magnetic gap 6 formed between the outer circumferential surface of the shaft section 3a on the inner yoke 3 and the inner circumferential surface of the aperture section 2a on the outer yoke 2a and the movable coil 4 which was inserted in the gap 6. Accordingly, magnetic reluctance can be reduced greatly and the cooling efficiency of the movable coil 4 which will be heated can also be increased.
JP14532580A 1980-10-17 1980-10-17 Actuator Pending JPS5771260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14532580A JPS5771260A (en) 1980-10-17 1980-10-17 Actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14532580A JPS5771260A (en) 1980-10-17 1980-10-17 Actuator

Publications (1)

Publication Number Publication Date
JPS5771260A true JPS5771260A (en) 1982-05-04

Family

ID=15382545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14532580A Pending JPS5771260A (en) 1980-10-17 1980-10-17 Actuator

Country Status (1)

Country Link
JP (1) JPS5771260A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62155385A (en) * 1985-12-27 1987-07-10 Saginomiya Seisakusho Inc Damper for refrigerator
JPS62264128A (en) * 1986-05-09 1987-11-17 Tokyo Electron Ltd Wafer conveying device
US8056357B2 (en) 2004-09-15 2011-11-15 Permacool Sa Method and device for ensuring maintained temperature inside a transport container or the like

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5448020A (en) * 1977-09-24 1979-04-16 Ricoh Co Ltd Linear motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5448020A (en) * 1977-09-24 1979-04-16 Ricoh Co Ltd Linear motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62155385A (en) * 1985-12-27 1987-07-10 Saginomiya Seisakusho Inc Damper for refrigerator
JPS62264128A (en) * 1986-05-09 1987-11-17 Tokyo Electron Ltd Wafer conveying device
JPH0479932B2 (en) * 1986-05-09 1992-12-17 Tokyo Electron Ltd
US8056357B2 (en) 2004-09-15 2011-11-15 Permacool Sa Method and device for ensuring maintained temperature inside a transport container or the like

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