ATE145088T1 - THERMAL AND ELECTROMAGNETIC TRIGGER - Google Patents

THERMAL AND ELECTROMAGNETIC TRIGGER

Info

Publication number
ATE145088T1
ATE145088T1 AT93119852T AT93119852T ATE145088T1 AT E145088 T1 ATE145088 T1 AT E145088T1 AT 93119852 T AT93119852 T AT 93119852T AT 93119852 T AT93119852 T AT 93119852T AT E145088 T1 ATE145088 T1 AT E145088T1
Authority
AT
Austria
Prior art keywords
magnet
bimetallic element
thermal
arms
coil
Prior art date
Application number
AT93119852T
Other languages
German (de)
Inventor
Erhard Runtsch
Original Assignee
Abb Patent Gmbh
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 Abb Patent Gmbh filed Critical Abb Patent Gmbh
Application granted granted Critical
Publication of ATE145088T1 publication Critical patent/ATE145088T1/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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • H01H71/402—Combined electrothermal and electromagnetic mechanisms in which the thermal mechanism influences the magnetic circuit of the electromagnetic mechanism

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermally Actuated Switches (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Adhesive Tapes (AREA)
  • Breakers (AREA)

Abstract

A thermal and electromagnetic tripping mechanism has a magnet core (25) and a magnet armature (26), a coil (23) and a magnet yoke (29) surrounding the coil. A supporting member (30, 31) for a bimetallic element (40) is arranged at the end face in front of the magnet yoke (29) and joined thereto. The bimetallic element heats up in the event of an overcurrent (excess current) and is moved in the process from a first stable position into a second stable position and back, thereby actuating the magnet armature (26) to release a latching mechanism. The bimetallic element (40) is fixed between two arms (30, 31) which form the supporting member. It is expedient to construct the bimetallic element as a bimetallic snap-action strip (40). The arms (30, 31; 46, 47; 52, 53), which consist of a material which is an effective thermal conductor, are mounted on the magnet yoke (29) so as to conduct heat effectively. <IMAGE>
AT93119852T 1992-12-16 1993-12-09 THERMAL AND ELECTROMAGNETIC TRIGGER ATE145088T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4242516A DE4242516A1 (en) 1992-12-16 1992-12-16 Thermal and electromagnetic release

Publications (1)

Publication Number Publication Date
ATE145088T1 true ATE145088T1 (en) 1996-11-15

Family

ID=6475468

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93119852T ATE145088T1 (en) 1992-12-16 1993-12-09 THERMAL AND ELECTROMAGNETIC TRIGGER

Country Status (4)

Country Link
EP (1) EP0603663B1 (en)
AT (1) ATE145088T1 (en)
DE (2) DE4242516A1 (en)
ES (1) ES2096188T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2772980B1 (en) * 1997-12-19 2000-01-21 Schneider Electric Sa MAGNETO-THERMAL TRIGGER DEVICE AND CIRCUIT BREAKER EQUIPPED WITH THIS DEVICE
DE19942694C2 (en) * 1999-09-07 2002-06-27 Eti Elektroelement Dd Triggers for electrical circuit breakers
DE102004056279A1 (en) * 2004-11-22 2006-05-24 Abb Patent Gmbh Protective switch with magnetic and thermal release for e.g. motor or circuit protection, is made from alloy with combined thermal- and magnetic shape memory
DE102004056282A1 (en) * 2004-11-22 2006-05-24 Abb Patent Gmbh Switching device for an electronic assembly comprises a thermal and electromagnetic circuit breaker having a snap-on mounting interacting with an impact anchor
WO2013075726A1 (en) 2011-11-22 2013-05-30 Ellenberger & Poensgen Gmbh Electric switching device
DE202011110187U1 (en) 2011-11-22 2013-01-18 Ellenberger & Poensgen Gmbh Electrical switching device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE469878C (en) * 1925-03-25 1929-01-02 Aeg Trip device for automatic switch
US2170412A (en) * 1936-12-17 1939-08-22 Westinghouse Electric & Mfg Co Circuit breaker
DE1033308B (en) * 1956-09-11 1958-07-03 Licentia Gmbh Small electrical thermal switch
DE1822570U (en) * 1956-10-27 1960-12-01 Theodor Kiepe Elektrotechnisch SELF-ACTING DISCONNECTING DEVICE EQUIPPED WITH THERMAL AND ELECTROMAGNETIC RELEASE.
DE1884376U (en) * 1963-06-12 1963-12-12 Licentia Gmbh BIMETAL ARRANGEMENT FOR SWITCHING DEVICES.
DE3637275C1 (en) * 1986-11-03 1988-05-05 Flohr Peter Overcurrent trip device for protection switching apparatuses
DE3738795A1 (en) * 1987-11-14 1989-05-24 Asea Brown Boveri SELF-SWITCH

Also Published As

Publication number Publication date
EP0603663A1 (en) 1994-06-29
DE59304417D1 (en) 1996-12-12
DE4242516A1 (en) 1994-06-23
EP0603663B1 (en) 1996-11-06
ES2096188T3 (en) 1997-03-01

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee