WO2012097811A2 - Coupe-circuit thermique - Google Patents

Coupe-circuit thermique Download PDF

Info

Publication number
WO2012097811A2
WO2012097811A2 PCT/DE2012/200001 DE2012200001W WO2012097811A2 WO 2012097811 A2 WO2012097811 A2 WO 2012097811A2 DE 2012200001 W DE2012200001 W DE 2012200001W WO 2012097811 A2 WO2012097811 A2 WO 2012097811A2
Authority
WO
WIPO (PCT)
Prior art keywords
temperature fuse
contact
fuse according
temperature
thermal
Prior art date
Application number
PCT/DE2012/200001
Other languages
German (de)
English (en)
Other versions
WO2012097811A3 (fr
WO2012097811A9 (fr
Inventor
Stefan AY
Original Assignee
Norbulb Sprinkler Elemente 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 Norbulb Sprinkler Elemente Gmbh filed Critical Norbulb Sprinkler Elemente Gmbh
Publication of WO2012097811A2 publication Critical patent/WO2012097811A2/fr
Publication of WO2012097811A3 publication Critical patent/WO2012097811A3/fr
Publication of WO2012097811A9 publication Critical patent/WO2012097811A9/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/764—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material in which contacts are held closed by a thermal pellet

Definitions

  • the invention relates to a thermal fuse and the use of a thermal tripping element for producing a thermal fuse.
  • Object of the present invention is therefore to provide a thermal fuse for higher currents, which is as easy to produce and should trigger reliable.
  • the solution of the problem is achieved in that the thermal fuse has a thermal tripping element which bursts when a predetermined temperature (trip temperature) is reached, whereby an electrically conductive connection is interrupted as a result of bursting.
  • a temperature fuse has the advantage that the triggering element can be manufactured separately, relatively simply and in various dimensions and embodiments.
  • Suitable triggering elements are, for example, tripping elements for sprinklers, as described in WO 97/26945 A1. But there are also triggering elements used, which consist of other fragile materials such as ceramic or plastic.
  • the thermal tripping element is a glass ampoule.
  • Such a glass ampoule like other triggering elements also, can be filled with an explosive liquid, as is typical of trigger members of sprinklers.
  • a preferred explosive liquid is also described in WO 97/26945 AI. This document and its entire contents are hereby incorporated by reference.
  • the explosive fluid disclosed therein is a substance derived from a halogen-free or halogenated hydrocarbon.
  • other explosive liquids can be used, which enable a reliable bursting of the triggering element upon reaching the triggering temperature. Explosive liquids can even be insulators which, when the triggering element bursts, no further electrical
  • the release temperature can be determined in particular by the amount of explosive liquid.
  • the triggering temperature is freely selectable and is preferably in a range between 40 and 250 ° C.
  • the thermal tripping element according to the invention offers the advantage of enabling a very specific triggering temperature. Until tripping, the triggering element remains virtually unchanged. Upon reaching the predetermined temperature, the triggering action is then very fast and accurate, i. E. within a narrow tolerance range, so that no temperature transition areas arise within which a tripping is not ensured.
  • Preferred triggering elements are glass ampoules with a diameter of 2 to 5 mm and a length of 10 to 20 mm.
  • glass ampoules offer the advantage of having a stable body with a closed surface.
  • a glass ampoule is chemically resistant and does not change its shape and properties over time. You can permanently high axial forces of z. B. 1000 N and more record. If it bursts, it is abrupt, precise and irreversible. Transitional forms that would prevent a power cut in critical situations are practically nonexistent with glass ampoules.
  • Glass ampoule is electrically non-conductive. It allows a visual check of the technical functionality of the temperature fuse at all times.
  • two connection elements are connected to contact members, wherein the one contact member is pressed by the trigger element against the other contact member.
  • the one contact member is resilient. If the trigger element bursts, the one contact member springs back, so that the contact between the two contact members is interrupted.
  • the contact pressure with which one contact member is pressed by the trigger element against the other contact member can be adjustable via an adjusting device.
  • connecting elements and contact members can be readily designed for high currents.
  • the triggering element is provided with an electrical conductor track, which preferably consists of metal.
  • the conductor track is either mounted on the surface of the triggering element or partially embedded in the wall of the triggering element. When the triggering element bursts, the conductor track will be torn, which will interrupt the circuit.
  • contact caps are attached to the trigger element.
  • the contact caps are electrically conductive and are preferably made of metal.
  • connecting elements may be attached.
  • a fuse carrier for example a conventional terminal fuse carrier.
  • connection elements are attached at the contact caps. The connection elements are connected in this case with the fuse carrier.
  • an electrical conductor which connects the two contact caps, it has proven useful to attach the electrical conductor by means of a holding element on the trigger element. This is especially true in the case of a resilient conductor, which springs back to its original shape when bursting of the trigger element and thereby interrupts the circuit.
  • a further embodiment of the invention provides that the triggering element is arranged in a metal housing, wherein a movable switching element is provided, the connecting element connecting elements via the metal housing.
  • the triggering element presses on the switching element on a spring. After the bursting of the trigger element, the switching element is disconnected from the connecting element in contact with the switching element, whereby also here the circuit is interrupted.
  • the triggering element is arranged in a housing such that it presses on a contact element which connects connecting elements.
  • the connection elements are in this case on the same side of the housing and are substantially parallel to each other.
  • the contact element may be provided with a contact ring, which ensures a conductive connection of the connection elements.
  • Such a thermal fuse is easy to handle. In particular, it allows easy operation of the adjusting screw, with which the pressure on the trigger element is adjustable.
  • thermal tripping element for producing a temperature fuse
  • FIG. 2 is a schematic side view of a temperature fuse comprising a tripping element with printed conductor
  • 4b is a temperature fuse after triggering in a schematic side view, 5 a arranged in a fuse carrier thermal fuse with contact caps and electrical conductor in longitudinal section,
  • Fig. 7 is a temperature fuse according to Fig. 5 with partly open housing in a perspective side view and
  • Fig. 8a and 8b a thermal fuse with unilaterally arranged connection elements before and after each triggered in longitudinal section.
  • a temperature fuse with a trigger element 1 is shown.
  • the trigger element 1 has ampoule shape. With its bottom end 20, it presses against a contact member 7a, so that the contact member 7a is brought into contact with a second contact member 7b.
  • the contact members 7a, 7b each lead to connection elements 2a, 2b.
  • an adjusting device 8 provides the necessary contact pressure with which the contact member 7a is pressed by the trigger element 1 against the contact member 7b.
  • the adjusting device 8 provides the necessary contact pressure with which the contact member 7a is pressed by the trigger element 1 against the contact member 7b.
  • 8 has an adjusting screw 21 which presses on the shoulder 22 of the triggering element 1.
  • the triggering element 1 is provided with an electrical conductor 9 and arranged between connection elements 3a, 3b.
  • the connecting elements 3a, 3b are formed angularly and have at their ends 23a, 23b in each case an opening 24a, 24b, via which the connection element 1 is held, so that the conductor track 9 comes into contact with both connection elements 3a, 3b.
  • an electrical conductor 13 is provided, which connects the two contact caps 12a, 12b.
  • the contact caps 12a, 12b are not provided with connection elements 4a, 4b.
  • Corresponding connection elements can be provided, for example, in a suitable fuse carrier (see FIG.
  • the electrical conductor 13 is by means of a holding element
  • a release element 1 provided with contact caps 12a, 12b is arranged in a fuse carrier 29 by means of a clamping device 31.
  • the fuse carrier 29 has connection elements 30a, 30b which are connected to the conductor 13 via the contact caps 12a, 12b.
  • FIG. 6a and 6b show a further embodiment of the invention, according to which a movable switching member 16 is provided, the two connecting elements 5a, 5b via a metal housing
  • Fig. 7 shows a temperature fuse according to Fig. 6 with partially open metal housing 15 in a perspective side view. It can be seen an adjusting screw 28, by means of which the trigger element 1 is pressed against the switching element 16, not shown here.
  • the partly open Metal housing 15 offers the advantage that the state of the triggering element 1 can be visually checked at any time. This makes it possible to detect at any time whether the temperature fuse is functional.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fuses (AREA)

Abstract

L'invention concerne un coupe-circuit thermique et l'utilisation d'un élément déclencheur thermique pour la fabrication d'un coupe-circuit thermique. Le coupe-circuit thermique est muni d'un élément déclencheur thermique éclatant en cas d'atteinte d'une température prédéfinie, une liaison électrique étant interrompue à la suite de cet éclatement.
PCT/DE2012/200001 2011-01-20 2012-01-18 Coupe-circuit thermique WO2012097811A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011009042.8 2011-01-20
DE201110009042 DE102011009042A1 (de) 2011-01-20 2011-01-20 Temperatursicherung

Publications (3)

Publication Number Publication Date
WO2012097811A2 true WO2012097811A2 (fr) 2012-07-26
WO2012097811A3 WO2012097811A3 (fr) 2013-01-10
WO2012097811A9 WO2012097811A9 (fr) 2013-02-28

Family

ID=46017742

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2012/200001 WO2012097811A2 (fr) 2011-01-20 2012-01-18 Coupe-circuit thermique

Country Status (2)

Country Link
DE (1) DE102011009042A1 (fr)
WO (1) WO2012097811A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023237138A1 (fr) * 2022-06-08 2023-12-14 Megellan, Se Dispositif passif de protection de la boîte de jonction électrique de l'alimentation électrique basse tension d'un bâtiment contre une température élevée ou des brûlures de flamme

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012110908A1 (de) * 2012-11-13 2014-05-15 Michael Laqua Vorrichtung zur thermischen Sicherung von elektrischen Verbindungsstellen
DE102013204073B4 (de) 2013-03-11 2023-02-09 Robert Bosch Gmbh Batterie mit thermischem Auslöseelement
DE102018215830A1 (de) * 2018-09-18 2020-03-19 Siemens Aktiengesellschaft Abtrennvorrichtung für einen Überspannungsableiter und Überspannungsableiter mit der Abtrennvorrichtung
EP4113735B1 (fr) * 2021-07-02 2023-11-22 Intercable Automotive Solutions GmbH Fusible thermique haute tension

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997026945A1 (fr) 1996-01-25 1997-07-31 Norbulb Sprinkler Elemente Gmbh Element de declenchement pour tete d'extinction
US7173510B2 (en) 2003-07-28 2007-02-06 Matsushita Electric Industrial Co., Ltd. Thermal fuse and method of manufacturing fuse
DE102008050523A1 (de) 2007-10-05 2009-04-09 Nec Schott Components Corp., Koka Temperatursicherung mit einem wärmeempfindlichen Pellet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE882361C (de) * 1951-12-19 1953-07-09 Sebastian Thielmann Sicherung gegen UEberschreitung vorbestimmter Temperaturen
DE1011961B (de) * 1954-07-05 1957-07-11 Funcke Geb Elektrischer temperaturabhaengiger Schalter mit Schmelz- oder Bruchkoerper
FR2127365A5 (fr) * 1971-03-02 1972-10-13 Cotherm Sa
DE102008003659A1 (de) * 2007-03-26 2008-10-02 Robert Bosch Gmbh Schmelzsicherung zur Unterbrechung eines spannungs- und/oder stromführenden Leiters im thermischen Fehlerfall und Verfahren zur Herstellung der Schmelzsicherung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997026945A1 (fr) 1996-01-25 1997-07-31 Norbulb Sprinkler Elemente Gmbh Element de declenchement pour tete d'extinction
US7173510B2 (en) 2003-07-28 2007-02-06 Matsushita Electric Industrial Co., Ltd. Thermal fuse and method of manufacturing fuse
DE102008050523A1 (de) 2007-10-05 2009-04-09 Nec Schott Components Corp., Koka Temperatursicherung mit einem wärmeempfindlichen Pellet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023237138A1 (fr) * 2022-06-08 2023-12-14 Megellan, Se Dispositif passif de protection de la boîte de jonction électrique de l'alimentation électrique basse tension d'un bâtiment contre une température élevée ou des brûlures de flamme
FR3136626A1 (fr) * 2022-06-08 2023-12-15 Megellan, Se Dispositif passif pour la protection d’une boîte de jonction électrique d’une alimentation électrique basse tension d’un bâtiment contre une température élevée indésirable ou des combustions à flamme
BE1030546B1 (fr) * 2022-06-08 2024-03-05 Megellan Se Dispositif passif pour la protection d’une boîte de jonction électrique d’une alimentation électrique basse tension d’un bâtiment contre une température élevée indésirable ou des combustions à flamme

Also Published As

Publication number Publication date
WO2012097811A3 (fr) 2013-01-10
DE102011009042A1 (de) 2012-07-26
WO2012097811A9 (fr) 2013-02-28

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