DE498533C - Thermal fuse for electric heating and cooking apparatus, especially heating pads - Google Patents
Thermal fuse for electric heating and cooking apparatus, especially heating padsInfo
- Publication number
- DE498533C DE498533C DESCH86144D DESC086144D DE498533C DE 498533 C DE498533 C DE 498533C DE SCH86144 D DESCH86144 D DE SCH86144D DE SC086144 D DESC086144 D DE SC086144D DE 498533 C DE498533 C DE 498533C
- Authority
- DE
- Germany
- Prior art keywords
- wire
- eyelet
- thermal fuse
- cooking apparatus
- heating
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0202—Switches
- H05B1/0205—Switches using a fusible material
Landscapes
- Fuses (AREA)
Description
Wärmeschmelzsicherung für elektrische Heiz- und Kochapparate, insbesondere Heizkissen Zusatz zum Patent 457181 Bei einer Ausführungsform des Gegenstandes des Hauptpatentes ist .durch Schmelzlot eine Öse an das Metallstück angelötet, in der eine gespannte Spiralfeder hängt. Diese Öse ist an einem Ende eines Drahtes gebildet, welcher xn. die Spiralfeder ieti;ngezogen isst und zum anderen Pol der Schmelzsicherung führt.Thermal fuse for electric heating and cooking apparatus, in particular Heating pad addendum to patent 457181 In one embodiment of the subject matter of The main patent is an eyelet soldered to the metal piece by fusible link, in which a tensioned spiral spring is hanging. This eyelet is formed at one end of a wire, which xn. the spiral spring is pulled and eats to the other pole of the fuse leads.
Es hat sich nun gezeigt, daß es unter ungünstigen Bedingungen vorkommen kann, daß sich der Draht in der Spiralfeder staucht, so daß die Kraft der Feder nicht mehr genügt, um die Schmelzsicherung zu unterbrechen. Diesem Übelstand kann dadurch abgeholfen werden, daß an Stelle des bisher verwendeten starken Drahtes sehr viel dünnerer Draht oder dünndrahtige Litze verwendet wird. Die Verwendung von dünnem Draht oder von .dünndrahtiger Litze hat aber wieder ihrerseits den Nachteil, daß die Drahtstärke dann nicht mehr ausreicht, um den Beanspruchungen in der Ö :se zu genügen,, bzw. daß die Litze sich schlecht zu einer Öse biegen läßt und daß beim Einhängen der Feder in eine Öse aus Litze die einzelnen Litzendrähtchen leicht verletzt werden können, i' so .daß diese zum Teil abgesplittert werden und auch nach Abschalten der Schmelzsicherung noch unbeabsichtigt Kontakt herstellen.It has now been shown that it can occur under unfavorable conditions can that the wire compresses in the spiral spring, so that the force of the spring is no longer sufficient to interrupt the fuse. This evil can be remedied that in place of the previously used strong wire much thinner wire or stranded wire is used. The usage thin wire or thin stranded wire has the disadvantage of its own that the wire thickness is then no longer sufficient to withstand the stresses in the eyelet to suffice, or that the strand can be difficult to bend into an eyelet and that with Hooking the spring into an eyelet made of stranded wire easily injures the individual stranded wires can be, i 'so .that these are partly splintered and also after switching off make contact with the fuse inadvertently.
Dieser Nachteil wird dadurch vermieden, daß zur Herstellung der Öse besonderer Draht verwendet wind, der stark genug ist, um den Beanspruchungen, welchen die Öse ausgesetzt ist, standzuhalten, während der Zuleitungsdraht aus .dünnerem Drahtmaterial bzw. aus dünndrähtiger Litze hergestellt wird.This disadvantage is avoided by making the eyelet special wire uses wind that is strong enough to withstand the stresses which the eyelet is exposed to withstand, while the lead wire is made of .thinner Wire material or is made of thin stranded wire.
Die Erfindung ist in der Abbildung beispielsweise dargestellt.The invention is shown in the figure, for example.
i bedeutet das Metallstück, 2 die Öse, 3 die beispielsweise aus Litze hergestellte Zuleitung.i means the metal piece, 2 the eyelet, 3 for example made of stranded wire manufactured supply line.
Die Litze 3 ist mit den beiden Drahtenden q. und 5 der Öse derart verwür gt, daß sie fest von den Ösenenden gehalten wird.The strand 3 is with the two wire ends q. and 5 of the eyelet like this confused that it is held tightly by the eyelet ends.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH86144D DE498533C (en) | Thermal fuse for electric heating and cooking apparatus, especially heating pads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH86144D DE498533C (en) | Thermal fuse for electric heating and cooking apparatus, especially heating pads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE498533C true DE498533C (en) | 1930-05-23 |
Family
ID=7443398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DESCH86144D Expired DE498533C (en) | Thermal fuse for electric heating and cooking apparatus, especially heating pads |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE498533C (en) |
-
0
- DE DESCH86144D patent/DE498533C/en not_active Expired
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