JPS5631367A - Linear-actuator - Google Patents

Linear-actuator

Info

Publication number
JPS5631367A
JPS5631367A JP10700979A JP10700979A JPS5631367A JP S5631367 A JPS5631367 A JP S5631367A JP 10700979 A JP10700979 A JP 10700979A JP 10700979 A JP10700979 A JP 10700979A JP S5631367 A JPS5631367 A JP S5631367A
Authority
JP
Japan
Prior art keywords
magnetic flux
directions
coils
generated
magnetic
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
JP10700979A
Other languages
Japanese (ja)
Inventor
Hiromi Ishizuka
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10700979A priority Critical patent/JPS5631367A/en
Publication of JPS5631367A publication Critical patent/JPS5631367A/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)
  • Moving Of Heads (AREA)

Abstract

PURPOSE:To obtain a fixed force constant at all times without regard to the driving directions of a magnetic head group by a method wherein two magnetic field spaces are formed, and coils, which are reversely wound mutually, are arranged into each space. CONSTITUTION:The dimensions of magnetic field spaces 12, 13 are equalized and the density BG of each magnetic flux is uniformalized while the dimensions of coils 5, 6 are also made equal and connected in reverse winding shapes. If currents are flowed through the coils 5, 6 so that a carriage 8 advance when the directions of magnetic flux 11 generated by a permanent magnet 1 are directed in the arrow head directions, magnetic flux phiC2 generated by the currents flows inthe same directions as the magnetic flux phim 11. Since the coils 5, 6 are formed in the same dimentions, magnitude is the same and the directions are reverse and magnetic flux mutually cancel in magnetic flux phiC1, phiC2, and the magnetic flux phiC1, phiC2 only results in the magnetic flux phim 11 generated by the magnet 1 and do not change even when currents are flowed through the coils. The same result is also generated when a carriage 8 is retreated. Thus, the fixed force constant can be obtained at all times without regard to the drive directions of the magnetic head group.
JP10700979A 1979-08-22 1979-08-22 Linear-actuator Pending JPS5631367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10700979A JPS5631367A (en) 1979-08-22 1979-08-22 Linear-actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10700979A JPS5631367A (en) 1979-08-22 1979-08-22 Linear-actuator

Publications (1)

Publication Number Publication Date
JPS5631367A true JPS5631367A (en) 1981-03-30

Family

ID=14448177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10700979A Pending JPS5631367A (en) 1979-08-22 1979-08-22 Linear-actuator

Country Status (1)

Country Link
JP (1) JPS5631367A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58126327A (en) * 1982-01-20 1983-07-27 Toyoda Autom Loom Works Ltd False-twisting nozzle for binding spinning

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58126327A (en) * 1982-01-20 1983-07-27 Toyoda Autom Loom Works Ltd False-twisting nozzle for binding spinning
JPS6156329B2 (en) * 1982-01-20 1986-12-02 Toyoda Jido Shotsuki Seisakusho Kk

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