GB1329752A - Miniaturized circuit-breaker switches - Google Patents

Miniaturized circuit-breaker switches

Info

Publication number
GB1329752A
GB1329752A GB5455870A GB5455870A GB1329752A GB 1329752 A GB1329752 A GB 1329752A GB 5455870 A GB5455870 A GB 5455870A GB 5455870 A GB5455870 A GB 5455870A GB 1329752 A GB1329752 A GB 1329752A
Authority
GB
United Kingdom
Prior art keywords
pin
push button
slot
movable assembly
bimetal
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
GB5455870A
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.)
Thales Avionics SAS
Original Assignee
Crouzet SA
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 Crouzet SA filed Critical Crouzet SA
Publication of GB1329752A publication Critical patent/GB1329752A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H73/22—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 having electrothermal release and no other automatic release
    • H01H73/30—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 having electrothermal release and no other automatic release reset by push-button, pull-knob or slide

Landscapes

  • Thermally Actuated Switches (AREA)
  • Push-Button Switches (AREA)
  • Breakers (AREA)

Abstract

1329752 Automatic circuit breakers CROUZET 17 Nov 1970 [20 Nov 1969] 54558/70 Heading H1N A push button reset, trip free circuit breaker has a two part insulating casing housing a pair of fixed contacts 2 and movable assembly comprising a pair of movable contacts 32a interconnected by a U-shaped bimetal tripping element 34. The push button 6 has a slotted extension 9 and a link 14 has a cross pin 15 engaging in its slot 9a and a second cross pin 16 engaging in a slot 11d in side plates of the movable assembly. Two co-operating latch members 20, 22 normally retain the pin 16 at the upper end of slot 11d, so that when the push button is pressed the link 14 drives the movable assembly downwards to close the contacts as shown. During this movement the pin 15 rides down a surface 17b in the casing and becomes latched beneath a plate 18. The sideways force on pin 15 due to a spring 31 biasing the movable assembly, being greater than that due to a restoring spring (19, Fig. 1, not shown) of the push button, retains the pin 15 in the latched position unless the push button is pulled upwards when the shaped slot 9a cams the pin 15 to the right releasing the whole assembly. Each movable contact 32a is carried by a resilient blade 32 riveted to an insulating block 28b and clamped at 35 to one of a pair of compensating bimetals 27 and to one free leg of the bimetal 34. The base of the U-shaped bimetal 34 is adjustable by a screw 37. When the bimetal 34 bends due to excessive current the free ends of the compensating bimetals 27 (which are insulated) tilt the first latch member 22 to relase the second member 20 which in turn releases pin 16 for movement along the slot 11d; the movable assembly can thus rise independently of the push button 6. If the push button is unimpeded its restoring spring (19) then pushes it up, pin 15 being disengaged from plate 18 by the slot 9a. The push button has differently coloured bands 7, 8 visible only in the off position.
GB5455870A 1969-11-20 1970-11-17 Miniaturized circuit-breaker switches Expired GB1329752A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR6940323A FR2067954A5 (en) 1969-11-20 1969-11-20
US8937570A 1970-11-13 1970-11-13

Publications (1)

Publication Number Publication Date
GB1329752A true GB1329752A (en) 1973-09-12

Family

ID=26215386

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5455870A Expired GB1329752A (en) 1969-11-20 1970-11-17 Miniaturized circuit-breaker switches

Country Status (4)

Country Link
US (1) US3686602A (en)
DE (1) DE2056446C3 (en)
FR (1) FR2067954A5 (en)
GB (1) GB1329752A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2914775B1 (en) * 1979-04-11 1980-07-17 Siemens Ag Device for changing over a changeover contact arrangement
DE8626325U1 (en) * 1986-10-02 1987-01-02 Ellenberger & Poensgen Gmbh, 8503 Altdorf Overcurrent protection switch
US6229426B1 (en) * 1999-10-25 2001-05-08 Texas Instruments Incorporated Circuit breaker having selected ambient temperature sensitivity
DE19959339A1 (en) 1999-12-09 2001-06-21 Ellenberger & Poensgen Electrical functional device, in particular circuit breaker, for use in aviation
US6617952B1 (en) * 2002-02-26 2003-09-09 Tsung-Mou Yu Switch with adjustable spring

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042776A (en) * 1959-09-16 1962-07-03 Texas Instruments Inc Electrical switches
US3210501A (en) * 1963-04-08 1965-10-05 Texas Instruments Inc Electrical switches with improved mechanical latching and resetting means
DE1588146B2 (en) * 1967-02-22 1972-02-10 PUSH BUTTON ACTUATED OVERCURRENT SWITCH

Also Published As

Publication number Publication date
DE2056446A1 (en) 1971-05-27
US3686602A (en) 1972-08-22
DE2056446B2 (en) 1979-04-19
DE2056446C3 (en) 1979-12-06
FR2067954A5 (en) 1971-08-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee