DE510343C - Closed fuse for larger currents, in which the melting strip is soldered together in the middle - Google Patents

Closed fuse for larger currents, in which the melting strip is soldered together in the middle

Info

Publication number
DE510343C
DE510343C DEV25735D DEV0025735D DE510343C DE 510343 C DE510343 C DE 510343C DE V25735 D DEV25735 D DE V25735D DE V0025735 D DEV0025735 D DE V0025735D DE 510343 C DE510343 C DE 510343C
Authority
DE
Germany
Prior art keywords
strip
soldered together
fuse
tubular
larger currents
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
DEV25735D
Other languages
German (de)
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.)
Voigt and Haeffner AG
Original Assignee
Voigt and Haeffner AG
Publication date
Priority to DEV25735D priority Critical patent/DE510343C/en
Application granted granted Critical
Publication of DE510343C publication Critical patent/DE510343C/en
Expired legal-status Critical Current

Links

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
    • H01H85/10—Fusible members characterised by the shape or form of the fusible member with constriction for localised fusing

Landscapes

  • Fuses (AREA)

Description

Um ein sicheres Durchschmelzen der Sicherungen, besonders geschlossener Sicherungspatronen, bei der Überlastungsstromstärke zu erzielen, hat man den aus einem Schmelzmaterial mit hohem Schmelzpunkt bestehenden Sicherungsstreifen in der Mitte auseinandergeschnitten und durch ein leicht schmelzbares Lot wieder zusammengelötet. Solche Sicherungen sind nur für verhältnismäßig niedere Stromstärken verwendbar. Die nachstehend beschriebene Erfindung zeigt eine Schmelzsicherung, die bei Vorhandensein der gleichen Eigenschaften für höhere Stromstärken verwendbar ist, und zwar wird der Schmelzstreifen rohrförmig ausgebildet und in seiner Mitte zusammengelötet. Die rohrförmige Ausbildung von Schmelzdrähten ist an sich bekannt. Die Enden dieses Rohres sind geschlitzt, so daß der Durchmesser vergrößert und der im kontaktgebenden Kopfteil befindlichen Öffnung angepaßt werden kann. Auf diese Weise erhält die Lötstelle gegenüber der Patronenwandung eine feste konzentrische Lage. Die Kurzschlußempfindlichkeit der Patrone kann in bekannter Weise durch eine Schwächung des Querschnittes in der Mitte des Schmelzstreifens erhöht werden, und wird an dieser Stelle stets die Abschmelzung erfolgen. Zweckmäßig werdenIn order to ensure that the fuses, especially closed fuse cartridges, To achieve the overload current strength, one has that of a melting material with a high melting point existing security strips cut apart in the middle and a light fusible solder soldered back together. Such backups are only for proportionate lower currents can be used. The invention described below shows a fuse, which in the presence of the same properties for higher Amperages can be used, namely the melt strip is tubular and soldered together in the middle. The tubular formation of fuse wires is known per se. The ends of this tube are slotted so that the diameter increases and can be adapted to the opening located in the contact-making head part. This way the solder joint is preserved a fixed, concentric position opposite the wall of the cartridge. The short circuit sensitivity the cartridge can in a known manner by a weakening of the cross-section in in the middle of the melt strip, and this is always where the meltdown occurs take place. Become useful

■30 mehrere solcher rohrförmiger Schmelzsicherungen neben- oder ineinander angeordnet. Bei letzterer Ausführung bleibt die Abmessung der Sicherungspatronen sehr klein.
Die Abbildungen zeigen eine der möglichen Ausführungsformen. α ist die Schmelzpatrone, in deren Innern zwei rohrförmige Schmelzstreifen b nebeneinander angeordnet sind. Die Schmelzstreifen sind unterteilt und in der Mitte bei c zusammengelötet. Außerdem besitzen die Schmelzstreifen Löcher d, um durch die Ouerschnittverminderung die Kurzschlußempfindlichkeit zu erhöhen. Die Enden e des Schmelzrohres sind geschlitzt, und die Befestigung mit den kontaktgebenden Teilen / der Patrone α erfolgt durch Einpressen, Anlöten o. dgl. Abb. 1 zeigt den Schnitt durch eine solche Patrone; in Abb. 2 ist der ronrförmige Schmelzstreif en & abgewickelt dargestellt; Abb. 3 zeigt den zum Einsetzen in die Patrone fertigen Schmelzstreifen. ■ 30 several such tubular fuses arranged side by side or one inside the other. In the latter version, the dimensions of the fuse cartridges remain very small.
The figures show one of the possible embodiments. α is the melt cartridge, inside of which two tubular melt strips b are arranged side by side. The melting strips are divided and soldered together in the middle at c. In addition, the fusible strips have holes d in order to increase the sensitivity to short circuits by reducing the cross section. The ends e of the melting tube are slotted, and the attachment to the contact-making parts / the cartridge α takes place by pressing in, soldering or the like. Fig. 1 shows the section through such a cartridge; in Fig. 2 the ring-shaped melt strip is shown unwound; Fig. 3 shows the melt strip ready for insertion into the cartridge.

Claims (3)

Patentansprüche:Patent claims: 1. Geschlossene Schmelzsicherung für größere Stromstärken, bei der der Schmelzstreifen in der Mitte zusammengelötet ist, dadurch gekennzeichnet, daß der Schmelzstreifen rohrförmig ausgebildet und mittels geschlitzter Enden an den kontaktgebenden Kopfteilen angebracht ist.1. Closed fuse for larger currents, at which the fuse strip is soldered together in the middle, characterized in that the melting strip is tubular and attached to the contact-making head parts by means of slotted ends. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Materialstärke des rohrförmigen Sicherungsstreifens in der Nähe der Lötstelle ver- mindert ist.2. Arrangement according to claim 1, characterized in that the material thickness of the tubular securing strip is reduced in the vicinity of the soldering point. 3. Anordnung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß zwei und mehrere rohrförmige Sicherungsstreifen neben- oder ineinander angeordnet sind.3. Arrangement according to claim 1 and 2, characterized in that two and several tubular security strips are arranged side by side or one inside the other. *) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor: Gerard Tillmann in Frankfurt a. M.Gerard Tillmann in Frankfurt a. M. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEV25735D Closed fuse for larger currents, in which the melting strip is soldered together in the middle Expired DE510343C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV25735D DE510343C (en) Closed fuse for larger currents, in which the melting strip is soldered together in the middle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV25735D DE510343C (en) Closed fuse for larger currents, in which the melting strip is soldered together in the middle

Publications (1)

Publication Number Publication Date
DE510343C true DE510343C (en) 1930-10-18

Family

ID=7582155

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV25735D Expired DE510343C (en) Closed fuse for larger currents, in which the melting strip is soldered together in the middle

Country Status (1)

Country Link
DE (1) DE510343C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE844479C (en) * 1950-07-04 1952-07-21 Jean Mueller O H G Elektrotech Low voltage high performance fuse
US2866037A (en) * 1954-12-30 1958-12-23 Gen Electric Electric current limiting fuse
US3029328A (en) * 1960-04-08 1962-04-10 Chase Shawmut Co Time-lag fuses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE844479C (en) * 1950-07-04 1952-07-21 Jean Mueller O H G Elektrotech Low voltage high performance fuse
US2866037A (en) * 1954-12-30 1958-12-23 Gen Electric Electric current limiting fuse
US3029328A (en) * 1960-04-08 1962-04-10 Chase Shawmut Co Time-lag fuses

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