MX2009013005A - Magnetic latch for a voice coil actuator. - Google Patents

Magnetic latch for a voice coil actuator.

Info

Publication number
MX2009013005A
MX2009013005A MX2009013005A MX2009013005A MX2009013005A MX 2009013005 A MX2009013005 A MX 2009013005A MX 2009013005 A MX2009013005 A MX 2009013005A MX 2009013005 A MX2009013005 A MX 2009013005A MX 2009013005 A MX2009013005 A MX 2009013005A
Authority
MX
Mexico
Prior art keywords
voice coil
coil assembly
magnet
assembly
voice
Prior art date
Application number
MX2009013005A
Other languages
Spanish (es)
Inventor
Bela Peter Szeifert
Michael Peter Dunk
Original Assignee
Cooper Technologies Co
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 Cooper Technologies Co filed Critical Cooper Technologies Co
Publication of MX2009013005A publication Critical patent/MX2009013005A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic actuators
    • 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
    • H01F7/066—Electromagnets with movable winding

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)

Abstract

Magnetically latching and releasing a voice coil actuator for controlling electrical switchgear. The voice coil actuator includes a voic coil magnet (220) disposed on a common longitudinal axis with respect to a voice coil assembly. A coil of the voice coil assembly exerts a magnetic force on the voice coil assembly, thrusting the voice coil assembly towards the voice coil magnet. At least one pair latching members (881,882) mounted to the voice coil assembly creates a permanent magnet circuit between the latching members an the voice coil magnet. The permanent magnet circuit maintains the position of the voice coil assembly relative to the voice coil magn even when power to the coil is removed. This latch can be released by applying a current in the coil or by applying an external, physi force to a member coupled to the voice coil assembly.
MX2009013005A 2007-05-31 2007-05-31 Magnetic latch for a voice coil actuator. MX2009013005A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2007/070129 WO2008150287A1 (en) 2007-05-31 2007-05-31 Magnetic latch for a voice coil actuator

Publications (1)

Publication Number Publication Date
MX2009013005A true MX2009013005A (en) 2010-02-12

Family

ID=40093955

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009013005A MX2009013005A (en) 2007-05-31 2007-05-31 Magnetic latch for a voice coil actuator.

Country Status (3)

Country Link
CA (1) CA2688095A1 (en)
MX (1) MX2009013005A (en)
WO (1) WO2008150287A1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086094A (en) * 1958-02-24 1963-04-16 Tann Corp Magnetic switching device

Also Published As

Publication number Publication date
CA2688095A1 (en) 2008-12-11
WO2008150287A1 (en) 2008-12-11

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