GB958501A - Improvements in electromagnetic devices in which a body is moved between two stable end positions - Google Patents

Improvements in electromagnetic devices in which a body is moved between two stable end positions

Info

Publication number
GB958501A
GB958501A GB2293960A GB2293960A GB958501A GB 958501 A GB958501 A GB 958501A GB 2293960 A GB2293960 A GB 2293960A GB 2293960 A GB2293960 A GB 2293960A GB 958501 A GB958501 A GB 958501A
Authority
GB
United Kingdom
Prior art keywords
permanent magnet
soft iron
moved
end positions
pulse
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.)
Expired
Application number
GB2293960A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB958501A publication Critical patent/GB958501A/en
Expired 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
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/06—Structural combination with remotely-controlled apparatus, e.g. with manipulators
    • G21F7/066—Remotely manipulated tools
    • 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
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1638—Armatures not entering the winding
    • H01F7/1646—Armatures or stationary parts of magnetic circuit having permanent magnet
    • 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
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Electromagnets (AREA)

Abstract

958,501. Electromagnets. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 30, 1960 [July 3, 1959], No. 22939/60. Heading H1P. A ferromagnetic body is held in either of two stable end positions by at least one, ferrite, permanent magnet, and is moved between them by electromagnetism provided by a current pulse. As shown, the body 1 comprises the permanent magnet and holds itself against either end of the soft iron cylinder 3, but is sent from one end to the other by repulsion when the appropriate coil 4 or 5 is pulsed. In one alternative arrangement (Fig. 2, not shown), the body is of soft iron and there is a permanent magnet at each end of the cylinder which is now of brass; a single coil extends between the ends and the pulse is applied for the first half of the travel only, the polarity being such that the body is repulsed from whichever is the nearer magnet. In a second alternative (Fig. 3, not shown), the body is again a permanent magnet which now traverses between the soft iron cores of two electromagnets connected in series whose polarities are such that the body is repulsed by one and attracted by the other. In this case the pulse length is immaterial but its sign must be appropriate for the direction of travel required.
GB2293960A 1959-07-03 1960-06-30 Improvements in electromagnetic devices in which a body is moved between two stable end positions Expired GB958501A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL240857 1959-07-03

Publications (1)

Publication Number Publication Date
GB958501A true GB958501A (en) 1964-05-21

Family

ID=19751811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2293960A Expired GB958501A (en) 1959-07-03 1960-06-30 Improvements in electromagnetic devices in which a body is moved between two stable end positions

Country Status (2)

Country Link
CH (1) CH386564A (en)
GB (1) GB958501A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490815A (en) * 1980-11-05 1984-12-25 Hitachi Metals, Ltd. Actuator for use in a pickup device for a video disk player
EP0179911A1 (en) * 1984-03-05 1986-05-07 Mitsubishi Mining & Cement Co., Ltd. Electromagnetic actuator apparatus
GB2221798A (en) * 1988-07-28 1990-02-14 H U Dev Corp Electromagnetic actuators
GB2228831A (en) * 1989-03-03 1990-09-05 Ped Ltd Bistable actuator and fluid control valve incorporating said actuator
US4978935A (en) * 1988-01-25 1990-12-18 Jerzy Hoffman Electromagnetic relay
US5272458A (en) * 1988-07-28 1993-12-21 H-U Development Corporation Solenoid actuator
GB2430686A (en) * 2005-09-29 2007-04-04 Schlumberger Holdings Bistable magnetic actuator
GB2466102A (en) * 2008-12-13 2010-06-16 Camcon Ltd Multi-stable electromagnetic actuator with a magnetic material casing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE41554T1 (en) * 1985-06-04 1989-04-15 Mitsubishi Mining & Cement Co ELECTROMAGNETIC ACTUATOR.
DE102016118254A1 (en) * 2016-09-27 2018-03-29 Eto Magnetic Gmbh Electromagnetic control system and operating procedures

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490815A (en) * 1980-11-05 1984-12-25 Hitachi Metals, Ltd. Actuator for use in a pickup device for a video disk player
EP0179911A1 (en) * 1984-03-05 1986-05-07 Mitsubishi Mining & Cement Co., Ltd. Electromagnetic actuator apparatus
EP0179911A4 (en) * 1984-03-05 1986-07-23 Mitsubishi Mining & Cement Co Electromagnetic actuator apparatus.
US4978935A (en) * 1988-01-25 1990-12-18 Jerzy Hoffman Electromagnetic relay
GB2221798A (en) * 1988-07-28 1990-02-14 H U Dev Corp Electromagnetic actuators
US5272458A (en) * 1988-07-28 1993-12-21 H-U Development Corporation Solenoid actuator
GB2228831A (en) * 1989-03-03 1990-09-05 Ped Ltd Bistable actuator and fluid control valve incorporating said actuator
GB2430686A (en) * 2005-09-29 2007-04-04 Schlumberger Holdings Bistable magnetic actuator
GB2430686B (en) * 2005-09-29 2010-09-29 Schlumberger Holdings Actuator
GB2466102A (en) * 2008-12-13 2010-06-16 Camcon Ltd Multi-stable electromagnetic actuator with a magnetic material casing
US8710945B2 (en) 2008-12-13 2014-04-29 Camcon Oil Limited Multistable electromagnetic actuators
GB2466102B (en) * 2008-12-13 2014-04-30 Camcon Ltd Multistable electromagnetic actuators with energy storage and recycling arrangements

Also Published As

Publication number Publication date
CH386564A (en) 1965-01-15

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