Title:
A HIGH-VOLTAGE THICK-FILM HIGH RUPTURING CAPACITY SUBSTRATE FUSE
Document Type and Number:
WIPO Patent Application WO/2004/105069
Kind Code:
A1
Abstract:
The subject of the invention is a high-voltage thick-film high rupturing capacity substrate fuse. The characteristic feature of the inventive fuse is that inside a tubular insulating casing /1/, which is closed at both ends with metal endocarps /2/ and filled with arc quenching medium /3/, there is located at least one insulating substrate /4/, along which there is placed at least one fuse element /5/ in the form of a thin conducting film and which has terminal areas /6/ at its ends, which areas are electrically connected with the end-caps by specially shaped contacts /7/ located inside the end-caps. The fuse element comprises a basic part formed by multiple identical V-shaped modules and two end modules forming electric connections between the basic part and the terminal areas. In each module, the arms of the V shape, of a specific width, end with arches directed outwards /8/, which arches are connected with the arches of the arms of the neighboring modules by means of line segments, thus forming a line, which bends many times at a constant angle and has truncated vertices in each module, in which line at least one module contains at least one edge constriction /9/, enabling opening of the current path when the fuse is overloaded.
Inventors:
WILNIEWCZYC MARIUSZ (PL)
KALTENBORN UWE (CH)
HOFFMANN GUIDO (CH)
KALTENEGGER KURT (CH)
KALTENBORN UWE (CH)
HOFFMANN GUIDO (CH)
KALTENEGGER KURT (CH)
Application Number:
PCT/PL2003/000092
Publication Date:
December 02, 2004
Filing Date:
September 18, 2003
Export Citation:
Assignee:
ABB SP ZO O (PL)
WILNIEWCZYC MARIUSZ (PL)
KALTENBORN UWE (CH)
HOFFMANN GUIDO (CH)
KALTENEGGER KURT (CH)
WILNIEWCZYC MARIUSZ (PL)
KALTENBORN UWE (CH)
HOFFMANN GUIDO (CH)
KALTENEGGER KURT (CH)
International Classes:
H01H85/042; H01H85/046; H01H85/10; H01H85/12; (IPC1-7): H01H85/046; H01H85/042; H01H85/10
Foreign References:
| US3041428A | 1962-06-26 | |||
| US6002564A | 1999-12-14 | |||
| US3585556A | 1971-06-15 | |||
| US3523264A | 1970-08-04 | |||
| US3624580A | 1971-11-30 | |||
| EP0621621A2 | 1994-10-26 | |||
| US5095297A | 1992-03-10 | |||
| US5148141A | 1992-09-15 | |||
| US4140988A | 1979-02-20 |
Attorney, Agent or Firm:
Chochorowska-winiarska, Krystyna (ul. Starowisla 13 A, Krakow, PL)
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