EP0924733A3 - Sub-miniature fuse - Google Patents

Sub-miniature fuse Download PDF

Info

Publication number
EP0924733A3
EP0924733A3 EP98121442A EP98121442A EP0924733A3 EP 0924733 A3 EP0924733 A3 EP 0924733A3 EP 98121442 A EP98121442 A EP 98121442A EP 98121442 A EP98121442 A EP 98121442A EP 0924733 A3 EP0924733 A3 EP 0924733A3
Authority
EP
European Patent Office
Prior art keywords
actuators
circuit
shape
change
sub
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.)
Withdrawn
Application number
EP98121442A
Other languages
German (de)
French (fr)
Other versions
EP0924733A2 (en
Inventor
Manfred Dr. Kohl
Klaus Skrobanek
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.)
Forschungszentrum Karlsruhe GmbH
Original Assignee
Forschungszentrum Karlsruhe 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 Forschungszentrum Karlsruhe GmbH filed Critical Forschungszentrum Karlsruhe GmbH
Publication of EP0924733A2 publication Critical patent/EP0924733A2/en
Publication of EP0924733A3 publication Critical patent/EP0924733A3/en
Withdrawn legal-status Critical Current

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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/145—Electrothermal mechanisms using shape memory materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/01—Details
    • H01H61/0107—Details making use of shape memory materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/0036—Switches making use of microelectromechanical systems [MEMS]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/52—Contacts adapted to act as latches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/0036—Switches making use of microelectromechanical systems [MEMS]
    • H01H2001/0042—Bistable switches, i.e. having two stable positions requiring only actuating energy for switching between them, e.g. with snap membrane or by permanent magnet
    • H01H2001/0047—Bistable switches, i.e. having two stable positions requiring only actuating energy for switching between them, e.g. with snap membrane or by permanent magnet operable only by mechanical latching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H2061/006—Micromechanical thermal relay
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/01—Details
    • H01H61/0107—Details making use of shape memory materials
    • H01H2061/0122—Two SMA actuators, e.g. one for closing or resetting contacts and one for opening them
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H2083/206—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition with thermal shunt trip

Landscapes

  • Thermally Actuated Switches (AREA)
  • Fuses (AREA)

Abstract

Mikrosicherung für die Mikrotechnik zum Unterbrechen und Schließen eines elektrischen Stromkreises mit mindestens zwei ebenen, gegeneinander arbeitenden Linearaktoren aus mäanderförmigen Strukturen als Stellelemente mit je einem ortsfestem und einem beweglichen Arbeitsende aus strukturierter Folie einer elektrisch leitfähigen Formgedächtnislegierung,die zum Teil Bestandteil des Stromkreises sind. Die gegeneinander liegenden Arbeitsenden der Aktoren sind miteinander verbunden, wobei an dem Übergangsstück ein Schaltkontakt in dem Stromkreis angeordnet ist, welcher durch die Formänderung eines der Aktoren öffenbar und durch die Formänderung des anderen wieder schließbar ist.

Figure 00000001
Micro fuse for microtechnology for interrupting and closing an electrical circuit with at least two flat, mutually working linear actuators made of meandering structures as control elements, each with a fixed and a movable working end made of structured foil of an electrically conductive shape memory alloy, which are partly part of the circuit. The opposing working ends of the actuators are connected to one another, a switching contact being arranged in the circuit on the transition piece, which can be opened by the change in shape of one of the actuators and closed by the change in shape of the other.
Figure 00000001
EP98121442A 1997-12-20 1998-11-11 Sub-miniature fuse Withdrawn EP0924733A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997157024 DE19757024C1 (en) 1997-12-20 1997-12-20 Micro-fuse for current circuit
DE19757024 1997-12-20

Publications (2)

Publication Number Publication Date
EP0924733A2 EP0924733A2 (en) 1999-06-23
EP0924733A3 true EP0924733A3 (en) 2000-05-24

Family

ID=7852837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98121442A Withdrawn EP0924733A3 (en) 1997-12-20 1998-11-11 Sub-miniature fuse

Country Status (2)

Country Link
EP (1) EP0924733A3 (en)
DE (1) DE19757024C1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6917276B1 (en) * 2000-06-19 2005-07-12 Simpler Networks Bistable switch with shape memory metal
DE10062704A1 (en) * 2000-12-15 2002-07-04 Siemens Ag Electromechanical component
GB2387480B (en) * 2002-04-09 2005-04-13 Microsaic Systems Ltd Micro-engineered self-releasing switch
DE102017124885B4 (en) 2017-10-24 2021-10-28 Memetis Gmbh Remote controllable coupling, especially model train couplings
DE102019204846A1 (en) * 2019-04-04 2020-10-08 Memetis Gmbh Actuator device
DE102020213648A1 (en) * 2020-10-29 2022-05-05 Memetis Gmbh Actuator and optics assembly with actuator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182747A (en) * 1985-11-07 1987-05-20 Gen Electric Co Plc Actuator device
US4811564A (en) * 1988-01-11 1989-03-14 Palmer Mark D Double action spring actuator
DE19525475A1 (en) * 1995-02-06 1997-01-16 Bayerische Motoren Werke Ag Isolating protection system protecting against overload in motor vehicle power cable using shape memory alloy device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182747A (en) * 1985-11-07 1987-05-20 Gen Electric Co Plc Actuator device
US4811564A (en) * 1988-01-11 1989-03-14 Palmer Mark D Double action spring actuator
DE19525475A1 (en) * 1995-02-06 1997-01-16 Bayerische Motoren Werke Ag Isolating protection system protecting against overload in motor vehicle power cable using shape memory alloy device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M KOHL ET AL: "Stress-optimised Integrated Linear Actuators with Shape Memory Effect", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NEW ACTUATORS, 26 June 1996 (1996-06-26), XP002095879 *

Also Published As

Publication number Publication date
DE19757024C1 (en) 1999-06-02
EP0924733A2 (en) 1999-06-23

Similar Documents

Publication Publication Date Title
DE3122899C2 (en) Temperature switch
DE4337344A1 (en) Current limiting contact system for circuit breakers
DE3539559A1 (en) ELECTROMECHANICAL DRIVE DEVICE WITH SHAPED MEMORY
EP2304757B1 (en) Bimetallic part and temperature-dependent switch equipped therewith
DE60314460T2 (en) PUSH BUTTON SWITCH
EP0886289A3 (en) Electric rotative push switch
DE202014010621U1 (en) Connectors
EP0924733A3 (en) Sub-miniature fuse
DE69127244T2 (en) Variable resistance switch
DE4201026B4 (en) Disconnect switch with variable manual operation
DE202013100509U1 (en) Temperature protection circuit
DE3536112A1 (en) CONTACT ARRANGEMENT FOR LOW VOLTAGE CIRCUIT BREAKERS WITH A BENDING ELECTRIC STRIP
DE102006010828B3 (en) Electric switching element, especially relay, has swiveling levers-type switching mechanism
DE1924701A1 (en) Thermally responsive snap switch
DE2702962A1 (en) Vacuum circuit breaker with brought out moving contact - has actuator with moving contact engaging cam drive at potential of moving contact
EP0948006A3 (en) Arrangement for indication of switching condition and consumption of the contacts of an electric switch
DE202016106294U1 (en) Connection device with a connection terminal for a conductor end
DE202020104004U1 (en) Electrical connecting link
DE4340137A1 (en) High electric DC currents polarity reversing circuit
DE19509017C2 (en) Power switch and method of making the same
WO2013139573A1 (en) Contact arrangement and electric switching device
DE3010579C2 (en) Load switches, in particular fuse load switches
EP0399419A3 (en) Electric snap-action switch particularly micro switch
DE2450742C2 (en) Electric switch
DE19642205C2 (en) Electrical switching device that can be used as a keus switch

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR GB LI LU NL

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000420

AKX Designation fees paid

Free format text: AT BE CH DE FR GB LI LU NL

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20041113