DE589316C - Firedamp protected fuse - Google Patents
Firedamp protected fuseInfo
- Publication number
- DE589316C DE589316C DENDAT589316D DE589316DD DE589316C DE 589316 C DE589316 C DE 589316C DE NDAT589316 D DENDAT589316 D DE NDAT589316D DE 589316D D DE589316D D DE 589316DD DE 589316 C DE589316 C DE 589316C
- Authority
- DE
- Germany
- Prior art keywords
- protective cap
- fuse
- firedamp
- thread
- bridge
- 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
- H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
- H01H85/62—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers the intermediate or auxiliary part being adapted for screwing into the base
-
- 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
- H01H85/0013—Means for preventing damage, e.g. by ambient influences to the fuse
- H01H85/0021—Means for preventing damage, e.g. by ambient influences to the fuse water or dustproof devices
- H01H85/0026—Means for preventing damage, e.g. by ambient influences to the fuse water or dustproof devices casings for the fuse and its base 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
- H01H85/0039—Means for influencing the rupture process of the fusible element
- H01H85/0047—Heating means
- H01H85/0052—Fusible element and series heating means or series heat dams
Landscapes
- Fuses (AREA)
Description
Bei der Ausbildung von mehrpoligen Schaltgeräten in schlagwettergeschützten Kapseln ergeben sich gewisse Vorteile, wenn die Sicherungen in an sich bekannter Weise nicht gemeinsam, sondern jede für sich einzeln gekapselt werden. Es ist hierbei dafür Sorge zu tragen, daß die Schutzkappe, die als druckfestes Gehäuse ausgebildet ist, auch unter allen Umständen dicht aufgesetzt wird, ίο Erfindungsgemäß soll nun erst durch die Befestigung der Kappe der Stromkreis für die Sicherung geschlossen werden. Gleichzeitig soll diese Befestigung aber auch allein für den Schluß des Stromkreislaufes aus- >5 reichen, so daß also das Schließen eines besonderen Schalters in Fortfall kommt." Die Forderung, daß die Schutzkappe unter allen Umständen dicht aufgesetzt wird, wird dadurch erfüllt, daß die Schutzkappe bei oder kurz vor ihrer endgültigen Befestigung eine elektrische Verbindung zwischen der Gewindebrücke der Sicherung mit einem getrennten Kontaktstück herstellt.When training multi-pole switchgear in firedamp-proof Capsules have certain advantages if the fuses in a manner known per se not together, but each individually encapsulated. It's here for it Care must be taken that the protective cap, which is designed as a pressure-resistant housing, also is placed tight under all circumstances, ίο according to the invention should now only through the Fastening the cap of the circuit for the fuse to be closed. Simultaneously should this attachment also be used solely for the end of the electrical circuit. > 5 are enough, so that the closing of a special switch is no longer necessary. "The The requirement that the protective cap is placed tightly under all circumstances is thereby met that the protective cap at or shortly before its final attachment a electrical connection between the threaded bridge of the fuse with a separate Manufactures contact piece.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung in mehreren Abbildungen dargestellt.In the drawing, an embodiment of the invention is shown in several figures shown.
2 bezeichnet den Schmelzstöpsel mit seinem Fußkontakt 3. 4 ist eine mit dem Gewinde 5 versehene Brücke, in die das Muttergewinde der Schutzkappe 6 eingreift. Beim Aufschrauben der Schutzkappe 6 legt sich die Ringfläche 7 gegen den Kontaktring 8, an den die Leitung angeschlossen ist. Um ein Lockern der Schutzkappe 6 zu verhindern, ist eine Sperrscheibe 9 o. dgl., wie sie im allgemeinen zur Sicherung von Schrauben üblich ist, vorgesehen. Die Kappe selbst ist mit einem Ansatz 10 zum Ansetzen eines Schraubenschlüssels versehen.2 designates the fusible plug with its foot contact 3. 4 is one with the thread 5 provided bridge, in which the nut thread of the protective cap 6 engages. When unscrewing the protective cap 6 lays the annular surface 7 against the contact ring 8 to which the Line is connected. In order to prevent the protective cap 6 from loosening, a Lock washer 9 or the like, as it is generally used to secure screws, intended. The cap itself is provided with a shoulder 10 for attaching a wrench Mistake.
Ist der Schmelzstöpsel 2 in die Brücke 4 eingeschraubt, so ist der Stromkreis noch nicht geschlossen. Erst wenn die Schutzkappe fest aufgeschraubt ist, legt sich die Ringfiäche 7 gegen den Kontaktring 8, wo- +5 durch der Stromdurchgang vermittelt wird. Diese Ausführung der schlagwettergeschützten Sicherung ist natürlich nur bei solchen Schaltgeräten zu verwenden, die so verriegelt sind, daß in allen Fällen die Sicherung bzw. So die Schutzkappe in spannungslosem Zustande gelöst wird. Allgemein werden derartige Sicherungen in besonderem Gehäuse angeordnet. Soll dagegen eine Sicherung als Einzelgerät Verwendung finden, so ist die Schutzkappe 6 mit einer Isolierschicht 11, wie in Abb. 3 dargestellt, zu versehen.If the fusible plug 2 is screwed into the bridge 4, the circuit is still open not closed. Only when the protective cap is screwed on firmly does the Ring surface 7 against the contact ring 8, whereby +5 is conveyed through the passage of current. This version of the firedamp protection is of course only available for such Use switching devices that are interlocked in such a way that the fuse resp. So the protective cap is released in the de-energized state. Generally, such Fuses arranged in a special housing. Should, however, a backup as a single device Find use, the protective cap 6 is provided with an insulating layer 11, as in FIG Fig. 3 shown to be provided.
Selbstverständlich ist die Erfindung nicht auf die im Ausführungsbeispiel gezeigte Abdichtung einer Schmelzsicherung beschränkt. Statt dieser können natürlich auch Sicherungen selbsttätiger Art, die sog. Sicherungsautomaten, in der gleichen Weise geschützt werden.Of course, the invention does not apply to the seal shown in the exemplary embodiment limited to a fuse. Instead of these, of course, you can also use backups automatic type, the so-called circuit breakers, protected in the same way will.
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE589316T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE589316C true DE589316C (en) | 1933-12-05 |
Family
ID=6572527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT589316D Expired DE589316C (en) | Firedamp protected fuse |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE589316C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2320869A1 (en) * | 1973-04-25 | 1974-11-07 | Eckardt Ag J | CONNECTING DEVICE FOR ELECTRICAL DEVICES |
-
0
- DE DENDAT589316D patent/DE589316C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2320869A1 (en) * | 1973-04-25 | 1974-11-07 | Eckardt Ag J | CONNECTING DEVICE FOR ELECTRICAL DEVICES |
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