GB1031782A - Improvements relating to magnetic switching devices - Google Patents

Improvements relating to magnetic switching devices

Info

Publication number
GB1031782A
GB1031782A GB201863A GB201863A GB1031782A GB 1031782 A GB1031782 A GB 1031782A GB 201863 A GB201863 A GB 201863A GB 201863 A GB201863 A GB 201863A GB 1031782 A GB1031782 A GB 1031782A
Authority
GB
United Kingdom
Prior art keywords
permanent magnet
unit
contacts
contact unit
normally closed
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
GB201863A
Inventor
John Cedric Gosling
William John Richard Childs
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB201863A priority Critical patent/GB1031782A/en
Priority to FR960591A priority patent/FR1384272A/en
Priority to FR58309A priority patent/FR1498309A/en
Publication of GB1031782A publication Critical patent/GB1031782A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/46—Adaptations of switches or switchgear
    • B66B1/50—Adaptations of switches or switchgear with operating or control mechanisms mounted in the car or cage or in the lift well or hoistway
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0013—Permanent magnet actuating reed switches characterised by the co-operation between reed switch and permanent magnet; Magnetic circuits
    • H01H36/002—Actuation by moving ferromagnetic material, switch and magnet being fixed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/008—Change of magnetic field wherein the magnet and switch are fixed, e.g. by shielding or relative movements of armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H01H51/281—Mounting of the relay; Encapsulating; Details of connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Keying Circuit Devices (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

1,031,782. Magnetic switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 9, 1964 [Jan. 16, 1963], No. 2018/63. Heading H2B. The object of the invention is to reduce the operating differential of a magnetic switch actuated by the movement of a flux diverting member. As shown, a sealed magnetic contact unit 3 is normally closed by a permanent magnet 4 and is opened by the insertion of a flux diverting member 5 between the unit 3 and permanent magnet 4. Opening of the contacts de-energizes a relay 9 with normally closed contacts 8 so that a coil 6 surrounding the unit is energized through a variable resistor 7 to a level just insufficient to reclose the contact unit 3. The coil 6 acts in the same sense as permanent magnet 4 so that the unit 3 is reclosed after the member 5 has been removed a shorter distance than would otherwise be necessary. In Fig. 3 (not shown) the permanent magnet is replaced by an electromagnet whose operating winding is in series with a variable resistor shunted by normally closed contacts of a delay 9. On insertion of member 5 the contact unit opens, de-energizing the relay 9 and causing its contacts to close short-circuiting the variable resistance and thereby increasing the current through the electromagnet. The contact unit therefore recloses in a shorter withdrawal distance.
GB201863A 1963-01-01 1963-01-01 Improvements relating to magnetic switching devices Expired GB1031782A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB201863A GB1031782A (en) 1963-01-01 1963-01-01 Improvements relating to magnetic switching devices
FR960591A FR1384272A (en) 1963-01-01 1964-01-16 Magnetic switching devices
FR58309A FR1498309A (en) 1963-01-01 1966-04-20 Proximity switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201863A GB1031782A (en) 1963-01-01 1963-01-01 Improvements relating to magnetic switching devices

Publications (1)

Publication Number Publication Date
GB1031782A true GB1031782A (en) 1966-06-02

Family

ID=9732146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201863A Expired GB1031782A (en) 1963-01-01 1963-01-01 Improvements relating to magnetic switching devices

Country Status (1)

Country Link
GB (1) GB1031782A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002004770A1 (en) * 2000-07-12 2002-01-17 Abloy Oy Detector arrangement
EP2038197A1 (en) * 2006-07-11 2009-03-25 Mitsubishi Electric Corporation Position detecting device, position detecting device for an elevator, and elevator apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002004770A1 (en) * 2000-07-12 2002-01-17 Abloy Oy Detector arrangement
EP2038197A1 (en) * 2006-07-11 2009-03-25 Mitsubishi Electric Corporation Position detecting device, position detecting device for an elevator, and elevator apparatus
EP2038197A4 (en) * 2006-07-11 2013-07-24 Mitsubishi Electric Corp Position detecting device, position detecting device for an elevator, and elevator apparatus

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