DE676362C - Thermal current limiter - Google Patents

Thermal current limiter

Info

Publication number
DE676362C
DE676362C DEA75921D DEA0075921D DE676362C DE 676362 C DE676362 C DE 676362C DE A75921 D DEA75921 D DE A75921D DE A0075921 D DEA0075921 D DE A0075921D DE 676362 C DE676362 C DE 676362C
Authority
DE
Germany
Prior art keywords
current limiter
thermal current
bimetallic strip
circuit
short
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
Application number
DEA75921D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AEG AG
Original Assignee
AEG AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AEG AG filed Critical AEG AG
Priority to DEA75921D priority Critical patent/DE676362C/en
Application granted granted Critical
Publication of DE676362C publication Critical patent/DE676362C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H79/00Protective switches in which excess current causes the closing of contacts, e.g. for short-circuiting the apparatus to be protected

Landscapes

  • Breakers (AREA)

Description

Thermiscl,ex Stxö'Megrenzer Die Erfindung bezieht sich auf. einen thermischen Strombegrenzer mit einem von einer in der elektrischen Verbraucherleitung liegenden Heizspule beheizten Bimetallstreifen und in Verbindung mit einem in Richtung auf die Stromquelle zu reihengeschalteten elektromagnetischen Kürzschlußselbstschalter. Das Wesen der Erfindung besteht darin, daß in an sich bekannter Weise das Ansprechen des Birnetallstreifens einen Leitungskurzschlußvor den Verbrauchern herbeiführt.Thermiscl, ex Stxö'Mlimer The invention relates to. a thermal current limiter with one of one in the electrical load line lying heating coil heated bimetal strip and in conjunction with one facing Electromagnetic short-circuit circuit breakers connected in series to the power source. The essence of the invention is that the response in a known manner of the bulb strip causes a line short circuit in front of the consumers.

Es sind wohl Schutzvorrichtungen für durch Temperatursteigerung gefährdete elektrische Stromverbraucher mit Steckeranschluß bekannt, wobei die Schutzvorrichtung in dem zu schützenden Gerät eingebaut ist und durch Kurzschließen der beiden Steckerstifte ein Ansprechen einer Schmelzsicherung bzw.,eines Selbstschalters bewirkt wird. Während es sich also bei den bekannten Vorrichtungen um Schutzvorrichtungen für durch Temperatursteigerung gefährdete Stromverbraucher handelt, bezieht sich die Erfindung auf einen Strombegrenzer, bei dem mit Hilfe eines vom Betriebsstrom beheizten Bimetallstreifens eine zusätzliche Auslösekraft für den elektromagnetischen Auslöser durch Herbeiführen eines Kurzschlusses erzeugt Wird. Diese Anordnung hat gegenüber den bekannten Vor-Hchtungen den Vorteil, däß eine besondere Schmelzsicherung bzw. ein Selbstschalter nicht erforderlich ist, sondern der Strombegrenzer selbst bildet die Schutzvorrichtung gegen höhe Überströme und Kurzschlüsse. In der Zeichnung ist die Erfindung beispielsweise dargestellt.There are probably protective devices for those at risk from a rise in temperature electrical power consumers with plug connection known, the protective device is built into the device to be protected and by short-circuiting the two connector pins a response of a fuse or a circuit breaker is caused. While The known devices are therefore protective devices for an increase in temperature electricity consumers at risk, the invention relates to a current limiter, an additional one with the help of a bimetallic strip heated by the operating current Tripping force for the electromagnetic release by causing a short circuit is produced. This arrangement has the advantage over the known Vor-Hchtungen, that a special fuse or an automatic switch is not required, but the current limiter itself forms the protective device against high overcurrents and short circuits. In the drawing, the invention is shown by way of example.

Der Selbstschalter a wird durch die Auslösespule b geöffnet. Die beiden Kontakte e und f sitzen an Bimetallstreifen d und i. Der Bimetallstreifen i wird von der Heizspule g durch den Betriebsstrom beheizt. Bei Überschreiten der zulässigen Stromgrenze und bei dadurch bedingter Erwärmung des Heiz-Widerstandes a krümmt sich der Bim@etallstreifen i und die beiden Kontakte f und e berühren sich. Dadurch wird ein unmittelbarer Kurzschluß herbeigeführt, der das Ansprechen der Auslösespule b bewirkt. Der Bimetallstreifend dient in bekannter Weise zur Kompensierung der Außentemperatur und wird nicht vom Betriebsstrom beheizt. Dadurch wird die ganze Anordnung unabhängig von Raumtemperatursch-tvankungen.The circuit breaker a is opened by the release coil b. The two contacts e and f sit on bimetallic strips d and i. The bimetallic strip i is heated by the heating coil g by the operating current. When the permissible current limit is exceeded and the heating resistor a warms up as a result, the bimetallic strip i bends and the two contacts f and e touch. As a result, a direct short circuit is brought about, which causes the trip coil b to respond. The bimetallic strip is used in a known manner to compensate for the outside temperature and is not heated by the operating current. This makes the entire arrangement independent of room temperature fluctuations.

Claims (1)

PATLNTAwstlxtJCii : Thermischer Strombegrenzer mit ,einem von einer in der elektrischen Verbraucherleitung liegenden Heizspule beheizten Bimetallstreifen und in Verbindung mit einem in Richtung auf die Stromquelle zu reihengeschalteten elektromagnetischen Kurzschlußselbstschalter, dadurch ge?kennzechnet, daß in an sich bekannter Weise das Ansprechen des Bimetallstreifens (i) einen Leitungskurzschluß (e, f) vor den Verbrauchern herbeiführt.PATLNTAwstlxtJCii: Thermal current limiter with a bimetallic strip heated by a heating coil located in the electrical consumer line and in connection with an electromagnetic short-circuit self-switch connected in series in the direction of the power source, characterized in that the bimetallic strip (i) responds in a manner known per se. causes a line short circuit (e, f) in front of the consumers.
DEA75921D 1935-04-30 1935-04-30 Thermal current limiter Expired DE676362C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA75921D DE676362C (en) 1935-04-30 1935-04-30 Thermal current limiter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA75921D DE676362C (en) 1935-04-30 1935-04-30 Thermal current limiter

Publications (1)

Publication Number Publication Date
DE676362C true DE676362C (en) 1939-06-02

Family

ID=6946611

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA75921D Expired DE676362C (en) 1935-04-30 1935-04-30 Thermal current limiter

Country Status (1)

Country Link
DE (1) DE676362C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068356B (en) * 1959-11-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068356B (en) * 1959-11-05

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