DE1909944C3 - Fuse, especially for overload protection in the electrical low-current range - Google Patents
Fuse, especially for overload protection in the electrical low-current rangeInfo
- Publication number
- DE1909944C3 DE1909944C3 DE19691909944 DE1909944A DE1909944C3 DE 1909944 C3 DE1909944 C3 DE 1909944C3 DE 19691909944 DE19691909944 DE 19691909944 DE 1909944 A DE1909944 A DE 1909944A DE 1909944 C3 DE1909944 C3 DE 1909944C3
- Authority
- DE
- Germany
- Prior art keywords
- fuse
- overload protection
- current range
- electrical low
- microwire
- 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
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
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/044—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified
Landscapes
- Fuses (AREA)
Description
Die vorliegende Erfindung bezieht sich auf eine Schmelzsicherung, insbesondere für den Oberlastschutz im elektrischen Schwachstrombereich, deren Schmelzelement mit einem Oxidationsschutzmittel umhüllt istThe present invention relates to a fuse, in particular for overload protection in the electrical low-current range, the fusible element of which is coated with an anti-oxidant
Eine Schmelzsicherung, deren Schmelzelement mit einem Oxidationsschutzmittel umhüllt ist, ist beispielsweise aus der GB-PS 1 15479 bekannt Die Verwendung dünner Drähte für Schmelzsicherungen ist beispielsweise in der US-PS 28 30 156 in Verbindung mit einem Epoxidharzstützkörper beschrieben.A fuse, the fusible element of which is coated with an antioxidant, is for example The use of thin wires for fuses is known from GB-PS 1 15479 For example, in US-PS 28 30 156 described in connection with an epoxy resin support body.
?n der DE-PS 7 33 525 ist schließlich eine Schmelzsi- » cherung mit einem Tragkörper für den Schmelzleiter aus einer elektrisch schlecht oder nichtleitenden Masse, für die Glas genannt ist, erwähnt Das Ziel der Erfindung ist eine Schmelzsicherung mit einem Schutzmittel gegen Oxidation zu entwickeln, die hohe Lebensdauer bei erhöhter Luftfeuchtigkeit und hoher Umgebungstemperatur hat und insbesondere für den Schwachstrombereich geeignet und billig in der Herstellung ist? n DE-PS 7 33 525 is finally a fusion » fuse with a support body for the fusible conductor made of an electrically poor or non-conductive mass, for the glass is mentioned, mentioned. The aim of the invention is a fuse with a means of protection against Oxidation develop, the long service life with increased humidity and high ambient temperature and is particularly suitable for the low-voltage range and cheap to manufacture
Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst daß bei einer Sicherung der eingangs erwähnten Art das Schmelzelement ein eingegossener Mikrodraht und das Oxidationsschutzmittel eine 2 bis 15 μπι starke Glasschicht istThe object set is achieved according to the invention in that, in the case of a fuse, the aforementioned Type the fusible element a cast microwire and the antioxidant a 2 to 15 μπι strong Glass layer is
Eine solche Lösung der Aufgabe ermöglicht es, zuverlässige Schmelzsicherungen mit hoher Lebensdauer als Massenware zu fertigen.Such a solution to the problem enables reliable fuses with a long service life to be mass-produced.
In einer Ausführungsform der Erfindung ist für den Mikrodraht Kupfer verwendet und der Maximalwert der Nennstrom-Betriebstemperatur der Sicherung beträgt 500 bis 600° C.In one embodiment of the invention, copper is used for the microwire and the maximum value the rated current operating temperature of the fuse is 500 to 600 ° C.
Die Erfindung wird an einem Beispiel unter Bezugnahme auf die Zeichnung erläutertThe invention is explained using an example with reference to the drawing
Ein Stück glasisolierten eingegossenen Mikrodrahtes 1 ist im Spalt 2 zwischen zwei voneinander isolierten und mit leitender Folie überzogenen Keramikträgern 3, 4 eingelötet.A piece of glass-insulated cast microwire 1 is in the gap 2 between two insulated from one another and ceramic supports 3, 4 coated with conductive foil are soldered in.
Die Keramiktrager 3, 4 sind in einem rohrförmigen Gehäuse 6 eingeschlossen, das an Enden mit Deckeln 7, 8 bedeckt ist Durch die Deckel 7, 8 sind die Anschlußdrähte 9,10 herausgeführtThe ceramic carriers 3, 4 are in a tubular shape Enclosed housing 6, which is covered at ends with lids 7, 8. Through the lids 7, 8 are the Connecting wires 9,10 led out
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691909944 DE1909944C3 (en) | 1969-02-27 | 1969-02-27 | Fuse, especially for overload protection in the electrical low-current range |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691909944 DE1909944C3 (en) | 1969-02-27 | 1969-02-27 | Fuse, especially for overload protection in the electrical low-current range |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1909944A1 DE1909944A1 (en) | 1970-09-10 |
DE1909944B2 DE1909944B2 (en) | 1978-09-07 |
DE1909944C3 true DE1909944C3 (en) | 1979-04-26 |
Family
ID=5726548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19691909944 Expired DE1909944C3 (en) | 1969-02-27 | 1969-02-27 | Fuse, especially for overload protection in the electrical low-current range |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1909944C3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3725907A1 (en) * | 1987-08-05 | 1989-02-16 | Wickmann Werke Gmbh | Fuse link |
-
1969
- 1969-02-27 DE DE19691909944 patent/DE1909944C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1909944A1 (en) | 1970-09-10 |
DE1909944B2 (en) | 1978-09-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
8339 | Ceased/non-payment of the annual fee |