DE295336C - - Google Patents
Info
- Publication number
- DE295336C DE295336C DENDAT295336D DE295336DA DE295336C DE 295336 C DE295336 C DE 295336C DE NDAT295336 D DENDAT295336 D DE NDAT295336D DE 295336D A DE295336D A DE 295336DA DE 295336 C DE295336 C DE 295336C
- Authority
- DE
- Germany
- Prior art keywords
- fuse
- several
- ceramic material
- insulation bodies
- cartridges
- 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
Links
- 238000009413 insulation Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- H01H85/143—Electrical contacts; Fastening fusible members to such contacts
Landscapes
- Fuses (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei Herstellung von lichtbogenfreien Sicherungspatronen für höhere Stromstärken tritt sehr bald der Übelstand auf, daß der aus keramischem Material hergestellte Isolationskörper bei einer gewissen Größe nicht mehr zuverlässig im Material ausgeführt werden kann. Man ist dazu übergegangen, mehrere Sicherungspatronen parallel in ein gemeinsames Sicherungselement einzusetzen. Mit dieser An-Ordnung ist aber der Nachteil verbunden, daß die Übergangswiderstände an den Berührungsflächen der einzelnen Sicherungspatronen ganz verschieden groß sein können. Infolgedessen kann es vorkommen, daß schon bei geringerWhen manufacturing arc-free fuse cartridges for higher currents occurs very soon the inconvenience that the insulation body made of ceramic material at a certain size can no longer be reliably executed in the material. One has gone over to it, several Insert fuse cartridges in parallel in a common fuse element. With this order but is associated with the disadvantage that the contact resistances at the contact surfaces the individual fuse cartridges can be of very different sizes. Consequently it can happen that even at lower
Überlastung die eine oder andere Patrone abschmilzt und dann ein zu frühes Durchgehen der Sicherung erfolgt.Overloading one or the other cartridge melts and then a runaway too early the backup takes place.
Bei der vorliegenden Neuerung werden diese Nachteile dadurch verhindert, daß zwar mehrere Isolationskörper aus keramischem Material angewendet werden, die Sicherung selbst aber aus einem gemeinsamen Ganzen besteht, bei dem die Schmelzfäden und die beiden Endkontakte eine gut leitende, feste Verbindung erhalten, deren Widerstand gegenüber dem Widerstand der Schmelzfäden zu vernachlässigen ist. Es erfolgt also nur eine Unterteilung der Isolationskörper, nicht aber eine Teilung der Sicherung in mehrere einzelne Patronen. In the present innovation, these disadvantages are prevented by the fact that several Insulation bodies made of ceramic material are used, but the fuse itself consists of a common whole, in which the melting threads and the two end contacts get a good conductive, solid connection, the resistance of which is negligible compared to the resistance of the melting threads is. So there is only a subdivision of the insulation body, but not a division the fuse in several individual cartridges.
In der Zeichnung ist eine solche Anordnung dargestellt, a, b und c sind die drei Isolationskörper der Sicherung, die zwischen den zwei Endkontaktplatten d und e eingesetzt sind, während zwischen den letzteren die einzelnen Schmelzstreifen innerhalb der drei Isolationskörper α, b und c durchgeführt und mit den Platten d und β fest verbunden werden. Die Anordnung bildet also einen vollständigen Schmelzeinsatz, der ebenso arbeitet, als wenn nur ein Isolationskörper vorhanden wäre.In the drawing, such an arrangement is shown, a, b and c are the three insulation bodies of the fuse, which are inserted between the two end contact plates d and e , while the individual melting strips within the three insulation bodies α, b and c are carried out between the latter be firmly connected to the plates d and β. The arrangement thus forms a complete fusible link that works just as if only one insulating body were present.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE295336C true DE295336C (en) |
Family
ID=549823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT295336D Active DE295336C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE295336C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2420202A1 (en) * | 1978-03-15 | 1979-10-12 | Ferraz & Cie Lucien | High current fuse group - has square ceramic walled enclosures each holding respective wire and spark suppression material |
DE102012202059A1 (en) * | 2012-02-10 | 2013-08-14 | Siemens Aktiengesellschaft | fuse assembly |
-
0
- DE DENDAT295336D patent/DE295336C/de active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2420202A1 (en) * | 1978-03-15 | 1979-10-12 | Ferraz & Cie Lucien | High current fuse group - has square ceramic walled enclosures each holding respective wire and spark suppression material |
DE102012202059A1 (en) * | 2012-02-10 | 2013-08-14 | Siemens Aktiengesellschaft | fuse assembly |
US9691581B2 (en) | 2012-02-10 | 2017-06-27 | Siemens Aktiengesellschaft | Fuse arrangement |
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