JPS5679408A - Polarized electromagnetic unit - Google Patents

Polarized electromagnetic unit

Info

Publication number
JPS5679408A
JPS5679408A JP15590979A JP15590979A JPS5679408A JP S5679408 A JPS5679408 A JP S5679408A JP 15590979 A JP15590979 A JP 15590979A JP 15590979 A JP15590979 A JP 15590979A JP S5679408 A JPS5679408 A JP S5679408A
Authority
JP
Japan
Prior art keywords
armatures
yoke
coil
contact
wound
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
JP15590979A
Other languages
Japanese (ja)
Inventor
Minoru Shibata
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP15590979A priority Critical patent/JPS5679408A/en
Publication of JPS5679408A publication Critical patent/JPS5679408A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/14—Pivoting armatures

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)

Abstract

PURPOSE:To improve the function of the unit by a method wherein when a yoke wound with a coil is disposed while being pivotally supported in the center between two armatures parallel to each other and made the polarized electromagnet unit, a magnetic fluid is inserted between the armatures and the yoke. CONSTITUTION:The upper armature 4 and lower armature 5 are disposed in parallel, a member having an axis 6 is fixed in the center between the armatures, the yoke 1 which is pivotally supported with the axis 6 and wound with the coil 3 on one side is swingably fixed between the armatures 4 and 5. Contact pieces 4a and 5a respectively are fitted inside the ends of the respective armatures and the yoke 1 is also provided with the contact pieces 2a and 2b on the top and bottom surfaces at the ends, and passin currents through the coil 3 effects contact of the contact piece 4a with the 2a or the 5a with the 2b respectively. In this construction, the magnetic fluid X composed of carriers of magnetite particles, water and hydrogenfluoride, etc. is enclosed between the armatures and the yoke, thereby effecting an airgap to be reduced and also a magnetic loss to be decreased.
JP15590979A 1979-11-30 1979-11-30 Polarized electromagnetic unit Pending JPS5679408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15590979A JPS5679408A (en) 1979-11-30 1979-11-30 Polarized electromagnetic unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15590979A JPS5679408A (en) 1979-11-30 1979-11-30 Polarized electromagnetic unit

Publications (1)

Publication Number Publication Date
JPS5679408A true JPS5679408A (en) 1981-06-30

Family

ID=15616155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15590979A Pending JPS5679408A (en) 1979-11-30 1979-11-30 Polarized electromagnetic unit

Country Status (1)

Country Link
JP (1) JPS5679408A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998009302A1 (en) * 1996-08-28 1998-03-05 Ferrofluidics Corporation Quiet ferrofluid solenoid
US6242994B1 (en) 1999-03-16 2001-06-05 Ferrofluidics Corporation Apparatus to reduce push back time in solenoid valves
JP2015232646A (en) * 2014-06-10 2015-12-24 セイコープレシジョン株式会社 Focal plane shutter and optical device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998009302A1 (en) * 1996-08-28 1998-03-05 Ferrofluidics Corporation Quiet ferrofluid solenoid
US5969589A (en) * 1996-08-28 1999-10-19 Ferrofluidics Corporation Quiet ferrofluid solenoid
US6242994B1 (en) 1999-03-16 2001-06-05 Ferrofluidics Corporation Apparatus to reduce push back time in solenoid valves
JP2015232646A (en) * 2014-06-10 2015-12-24 セイコープレシジョン株式会社 Focal plane shutter and optical device

Similar Documents

Publication Publication Date Title
FR2466844B1 (en)
DE3067528D1 (en) Electromagnetic relay
JPS5679408A (en) Polarized electromagnetic unit
EP0390372A3 (en) Polarized electromagnetic relay
US4206431A (en) Monostable electromagnetic rotating armature relay
JPS57188816A (en) Electromagnet device
EP0355817A3 (en) Electromagnetic relay
JPS57102005A (en) Polar electromagnet
JPS5776805A (en) Polarized solenoid
JPS5799714A (en) Polarized electromagnet
JPS5784108A (en) Polarized electromagnet
GB1294186A (en) Magnet structure and magnet support structure in an electromagnetically operated switch
JPS5784110A (en) Polarized electromagnet
JPS5776804A (en) Polarized solenoid
JPS6472509A (en) Polarized electromagnet
JPS56161615A (en) Polarized electromagnetic
JPS57102004A (en) Polar electromagnet
JPS6144161Y2 (en)
JPS5642306A (en) Monostable type polar electromagnet device
JPS5642305A (en) Monostable type polar electromagnet device
JPS5651809A (en) Polarized electromagnet
JPS5642307A (en) Monostable type polar electromagnet device
JPS6472510A (en) Polarized electromagnet
JPS5615012A (en) Electromagnet
JPS5593302A (en) Selector for straight line and circular polarized wave