EP3888114B1 - Elektrothermische sicherung - Google Patents

Elektrothermische sicherung Download PDF

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Publication number
EP3888114B1
EP3888114B1 EP18836667.8A EP18836667A EP3888114B1 EP 3888114 B1 EP3888114 B1 EP 3888114B1 EP 18836667 A EP18836667 A EP 18836667A EP 3888114 B1 EP3888114 B1 EP 3888114B1
Authority
EP
European Patent Office
Prior art keywords
conductor
fuse
electric
spring
casing
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.)
Active
Application number
EP18836667.8A
Other languages
English (en)
French (fr)
Other versions
EP3888114A1 (de
Inventor
Brane Lebar
Darko Kos
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.)
Razvojni Center Enem Novi Materiali doo
Original Assignee
Razvojni Center Enem Novi Materiali doo
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 Razvojni Center Enem Novi Materiali doo filed Critical Razvojni Center Enem Novi Materiali doo
Publication of EP3888114A1 publication Critical patent/EP3888114A1/de
Application granted granted Critical
Publication of EP3888114B1 publication Critical patent/EP3888114B1/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/055—Fusible members
    • H01H85/08—Fusible members characterised by the shape or form of the fusible member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/36—Means for applying mechanical tension to fusible member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/143—Electrical contacts; Fastening fusible members to such contacts
    • H01H85/153—Knife-blade-end contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/165—Casings
    • H01H85/17—Casings characterised by the casing material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/18—Casing fillings, e.g. powder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof
    • H01H85/203—Bases for supporting the fuse; Separate parts thereof for fuses with blade type terminals

Claims (6)

  1. Elektrothermische Sicherung, umfassend ein rohrförmiges Gehäuse (1), das aus einem elektrisch isolierenden Material besteht, die auf jedem ihrer Anschlussabschnitte (11, 12) durch eine Abdeckung verschlossen ist, die auch als Kontaktelement (110, 120) dient, das aus einem elektrisch leitenden Material besteht, welches zum Einbau der Sicherung in jeden verfügbaren Stromkreis geeignet ist, während ein elektrischer Leiter (2) durch den gesamten Durchgang (10) innerhalb des hohlen Gehäuses (1) eingeführt ist und während des normalen Betriebs der Sicherung, nämlich, wenn der elektrische Strom durch den elektrischen Leiter (2) fließen kann, über mindestens einen gelöteten Kontakt (3, 3') elektrisch mit den Kontaktelementen (110, 120) verbunden ist, aber im Fall einer elektrischen Überlastung innerhalb des Kreises und einer erzeugten Wärme und infolgedessen eines Schmelzens und Unterbrechens des mindestens einen gelöteten Kontakts (3, 3') von mindestens einem der Kontaktelemente (110, 120) mittels einer Feder (4) weg verschiebbar ist, wodurch der elektrische Strom durch die Sicherung dann unterbrochen wird, dadurch gekennzeichnet, dass das rohrförmige Gehäuse (1) aus Keramik besteht und jedes der Kontaktelemente (110, 120) mit einem mittig angeordneten durchgehenden Durchgang (111, 121) versehen ist, so dass der elektrische Leiter (2) durch die Durchgänge (111, 121) innerhalb der Kontaktelemente (110, 120) eingeführt ist und mittels eines Lötmittels (3, 3'), welches sich auf der Außenseite der Sicherung befindet, fest und elektrisch leitend mit jedem der Kontaktelemente (110, 120) verbunden ist, wobei der Leiter (2) in dem einen Anschlussbereich der Sicherung mit einem passenden dickeren Abschnitt (20) verlängert und abgeschlossen ist, so dass eine Feder (4) um den Leiter (2) herum angeordnet und zwischen dem dickeren Abschnitt (20) und dem zugehörigen Kontaktelement (120) mit dem Lötmittel (3') eingeführt ist, und wobei das restliche Volumen innerhalb des Durchgangs (10) in dem Gehäuse (1) der Sicherung, nämlich der Bereich zwischen dem Leiter (2) und dem Gehäuse (1) sowie zwischen den Kontaktelementen (110, 120), mit einer vorbestimmten Menge eines einen Lichtbogen verhindernden Füllstoffes (5) auf der Basis von auf geeignete Weise granulärem Siliziumdioxid gefüllt ist.
  2. Sicherung nach Anspruch 1, dadurch gekennzeichnet, dass der Leiter (2) ein Draht ist, der aus Kupfer besteht und einen vorbestimmten kreisförmigen Querschnitt aufweist.
  3. Sicherung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass eine Unterlegscheibe (6), die dafür geeignet ist, die Feder (4) zu tragen, zwischen der Feder (4) und dem dickeren Abschnitt (20) auf dem Leiter (2) eingefügt ist.
  4. Sicherung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Feder (4) eine Schraubendruckfeder ist.
  5. Sicherung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Menge an Füllstoff (5) auf der Basis von auf geeignete Weise granulärem Siliziumdioxid auf eine solche Weise bestimmt wird, dass das Volumen des Füllstoffes (5) als solches 90 % des gesamten verfügbaren Volumens um den Leiter (2) innerhalb des Durchgangs (10) innerhalb des Gehäuses (1) entspricht.
  6. Sicherung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Schmelzpunkt des Lötmittels (3, 3'), das für die Verbindung des Leiters (2) mit jedem entsprechenden Kontaktelement (110, 120) vorgesehen ist, auf einen Bereich innerhalb 105 bis 115 °C eingestellt ist.
EP18836667.8A 2018-11-29 2018-12-05 Elektrothermische sicherung Active EP3888114B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SI201800261A SI25756B (sl) 2018-11-29 2018-11-29 Električna termična varovalka
PCT/SI2018/000026 WO2020112031A1 (en) 2018-11-29 2018-12-05 Electro thermal fuse

Publications (2)

Publication Number Publication Date
EP3888114A1 EP3888114A1 (de) 2021-10-06
EP3888114B1 true EP3888114B1 (de) 2022-12-14

Family

ID=65041832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18836667.8A Active EP3888114B1 (de) 2018-11-29 2018-12-05 Elektrothermische sicherung

Country Status (3)

Country Link
EP (1) EP3888114B1 (de)
SI (1) SI25756B (de)
WO (1) WO2020112031A1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2296627A (en) * 1937-10-30 1942-09-22 Gen Electric Time lag fuse
GB1033814A (en) * 1963-06-27 1966-06-22 English Electric Co Ltd Improvements in or relating to electrical fuse-links
JP2016162683A (ja) * 2015-03-04 2016-09-05 株式会社オリエント 高圧電気回路保護用ヒューズ

Also Published As

Publication number Publication date
SI25756B (sl) 2023-06-30
SI25756A (sl) 2020-06-30
WO2020112031A1 (en) 2020-06-04
EP3888114A1 (de) 2021-10-06

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