WO1991002370A3 - Miniature circuit breakers - Google Patents

Miniature circuit breakers Download PDF

Info

Publication number
WO1991002370A3
WO1991002370A3 PCT/GB1990/001157 GB9001157W WO9102370A3 WO 1991002370 A3 WO1991002370 A3 WO 1991002370A3 GB 9001157 W GB9001157 W GB 9001157W WO 9102370 A3 WO9102370 A3 WO 9102370A3
Authority
WO
WIPO (PCT)
Prior art keywords
overload
miniature circuit
latch mechanism
carriage
circuit breakers
Prior art date
Application number
PCT/GB1990/001157
Other languages
French (fr)
Other versions
WO1991002370A2 (en
Inventor
William Henry Anquetil
Original Assignee
Federal Pioneer Ltd
Federal Electric 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 Federal Pioneer Ltd, Federal Electric Ltd filed Critical Federal Pioneer Ltd
Priority to CA002065031A priority Critical patent/CA2065031A1/en
Publication of WO1991002370A2 publication Critical patent/WO1991002370A2/en
Publication of WO1991002370A3 publication Critical patent/WO1991002370A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/504—Manual reset mechanisms which may be also used for manual release provided with anti-rebound means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7427—Adjusting only the electrothermal mechanism
    • H01H71/7436—Adjusting the position (or prestrain) of the bimetal

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

A miniature circuit breaker for domestic and like electricity supply circuits has a double break design featuring a contact carrier (28) mounted on a plastic sliding carriage (60) directly connected to a coiled tension spring (108) and controlled by a latch mechanism which releases it for completely independent breaking movement on overload. Major parts of the latch mechanism are moulded in a plastics material. An anti-bounce stop (120) is provided for the carriage. Simple adjustement of the trip point is provided by a threaded adjuster which moves a thermal trip lever (88). Leaf springs(114, 134) position the movable contacts and the plunger (126) of the overload-detecting solenoid (24).
PCT/GB1990/001157 1989-07-28 1990-07-26 Miniature circuit breakers WO1991002370A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002065031A CA2065031A1 (en) 1989-07-28 1990-07-26 Miniature circuit breakers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898917283A GB8917283D0 (en) 1989-07-28 1989-07-28 Miniature circuit breakers
GB8917283.7 1989-07-28

Publications (2)

Publication Number Publication Date
WO1991002370A2 WO1991002370A2 (en) 1991-02-21
WO1991002370A3 true WO1991002370A3 (en) 1991-06-27

Family

ID=10660778

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1990/001157 WO1991002370A2 (en) 1989-07-28 1990-07-26 Miniature circuit breakers

Country Status (4)

Country Link
AU (1) AU6068790A (en)
CA (1) CA2065031A1 (en)
GB (1) GB8917283D0 (en)
WO (1) WO1991002370A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2709251B2 (en) * 1992-02-27 1998-02-04 寺崎電気産業株式会社 Draw-out type circuit breaker
FR2773910B1 (en) * 1998-01-16 2000-05-19 Schneider Electric Sa ELECTROMAGNETICALLY CONTROLLED SWITCHING APPARATUS
DE10343338B4 (en) * 2003-09-12 2006-02-02 Siemens Ag Switching device with short-circuit current release and corresponding method
DE102010019353B3 (en) * 2010-05-05 2011-11-10 Eaton Industries Gmbh Power switch e.g. single-pole power switch, has plate spring extending in close proximity to moving contact in plane of motion, where plate spring is formed such that component holds moving contact in separation position
DE102012102431B4 (en) * 2012-03-21 2019-11-07 Te Connectivity Germany Gmbh Circuit breaker
WO2015036011A1 (en) * 2013-09-10 2015-03-19 Siemens Aktiengesellschaft Switching device comprising a damping element for contact arrangement

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH239696A (en) * 1943-11-16 1945-10-31 Landis & Gyr Ag Electrical switch with short-circuit release.
US2580511A (en) * 1942-10-12 1952-01-01 Merlin & Gerin Release mechanism
DE1021937B (en) * 1955-09-12 1958-01-02 Licentia Gmbh Switching mechanism for automatic switches, especially for installation automatic switches
US2897408A (en) * 1955-04-06 1959-07-28 Siemens Ag Circuit interrupter
DE1094863B (en) * 1959-05-22 1960-12-15 Continental Elektro Ind Ag Automatic switch in screw plug or element form
FR1354577A (en) * 1962-04-17 1964-03-06 Asea Ab Current limiter switch or circuit breaker
DE1169005B (en) * 1961-06-08 1964-04-30 Haegglund & Soener Ab Contact device with two contact points provided for simultaneous opening and closing
FR1429167A (en) * 1964-11-14 1966-02-18 Satra Ets Magnetic relay for detecting overcurrents on polyphase or single-phase networks
GB1056132A (en) * 1963-02-07 1967-01-25 Terasaki Denki Sangyo Kk Electrical circuit interrupter
FR1482417A (en) * 1965-12-10 1967-05-26 Terasaki Denki Sangyo Kk Advanced circuit breaker
AT258391B (en) * 1966-08-08 1967-11-27 Naimer H L Electrical switchgear
DE1939718A1 (en) * 1969-08-05 1971-02-18 Leybold Heraeus Gmbh & Co Kg Freeze drier with vacuum drying chamber
DE2848806A1 (en) * 1977-12-13 1979-06-21 Schaltelektronik Veb K Sensitive holding magnet release for fault-current switch - has saturation grid in yokes near bridging armatures so that yoke cross=section in this region is small
DE2800131A1 (en) * 1978-01-03 1979-07-12 Lauerer Friedrich Electromagnetic relay with magnetic shunt - uses drift in magnetic flux to change resistance of the magnetic shunt
FR2446538A1 (en) * 1979-01-11 1980-08-08 Merlin Gerin LOW VOLTAGE LIMITER CIRCUIT BREAKER WITH IMPROVED ELECTROMAGNETIC TRIGGER
EP0073002A1 (en) * 1981-08-21 1983-03-02 BROWN, BOVERI & CIE Aktiengesellschaft Electromagnetic tripping device
GB2155692A (en) * 1984-03-09 1985-09-25 Terasaki Denki Sangyo Kk Circuit breakers
FR2581243A1 (en) * 1985-04-27 1986-10-31 Licentia Gmbh Magnetic and thermal circuit breaker switch
EP0287752A2 (en) * 1987-04-22 1988-10-26 Moeller GmbH Electromagnetic switchgear with electromagnetic drive
EP0323404A1 (en) * 1987-12-25 1989-07-05 ABBPATENT GmbH Release system in a built-in installation circuit breaker

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580511A (en) * 1942-10-12 1952-01-01 Merlin & Gerin Release mechanism
CH239696A (en) * 1943-11-16 1945-10-31 Landis & Gyr Ag Electrical switch with short-circuit release.
US2897408A (en) * 1955-04-06 1959-07-28 Siemens Ag Circuit interrupter
DE1021937B (en) * 1955-09-12 1958-01-02 Licentia Gmbh Switching mechanism for automatic switches, especially for installation automatic switches
DE1094863B (en) * 1959-05-22 1960-12-15 Continental Elektro Ind Ag Automatic switch in screw plug or element form
DE1169005B (en) * 1961-06-08 1964-04-30 Haegglund & Soener Ab Contact device with two contact points provided for simultaneous opening and closing
FR1354577A (en) * 1962-04-17 1964-03-06 Asea Ab Current limiter switch or circuit breaker
GB1056132A (en) * 1963-02-07 1967-01-25 Terasaki Denki Sangyo Kk Electrical circuit interrupter
FR1429167A (en) * 1964-11-14 1966-02-18 Satra Ets Magnetic relay for detecting overcurrents on polyphase or single-phase networks
FR1482417A (en) * 1965-12-10 1967-05-26 Terasaki Denki Sangyo Kk Advanced circuit breaker
AT258391B (en) * 1966-08-08 1967-11-27 Naimer H L Electrical switchgear
DE1939718A1 (en) * 1969-08-05 1971-02-18 Leybold Heraeus Gmbh & Co Kg Freeze drier with vacuum drying chamber
DE2848806A1 (en) * 1977-12-13 1979-06-21 Schaltelektronik Veb K Sensitive holding magnet release for fault-current switch - has saturation grid in yokes near bridging armatures so that yoke cross=section in this region is small
DE2800131A1 (en) * 1978-01-03 1979-07-12 Lauerer Friedrich Electromagnetic relay with magnetic shunt - uses drift in magnetic flux to change resistance of the magnetic shunt
FR2446538A1 (en) * 1979-01-11 1980-08-08 Merlin Gerin LOW VOLTAGE LIMITER CIRCUIT BREAKER WITH IMPROVED ELECTROMAGNETIC TRIGGER
EP0073002A1 (en) * 1981-08-21 1983-03-02 BROWN, BOVERI & CIE Aktiengesellschaft Electromagnetic tripping device
GB2155692A (en) * 1984-03-09 1985-09-25 Terasaki Denki Sangyo Kk Circuit breakers
FR2581243A1 (en) * 1985-04-27 1986-10-31 Licentia Gmbh Magnetic and thermal circuit breaker switch
EP0287752A2 (en) * 1987-04-22 1988-10-26 Moeller GmbH Electromagnetic switchgear with electromagnetic drive
EP0323404A1 (en) * 1987-12-25 1989-07-05 ABBPATENT GmbH Release system in a built-in installation circuit breaker

Also Published As

Publication number Publication date
WO1991002370A2 (en) 1991-02-21
CA2065031A1 (en) 1991-01-29
AU6068790A (en) 1991-03-11
GB8917283D0 (en) 1989-09-13

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