DE915957C - Bimetal release heated by a transducer - Google Patents
Bimetal release heated by a transducerInfo
- Publication number
- DE915957C DE915957C DES6100D DES0006100D DE915957C DE 915957 C DE915957 C DE 915957C DE S6100 D DES6100 D DE S6100D DE S0006100 D DES0006100 D DE S0006100D DE 915957 C DE915957 C DE 915957C
- Authority
- DE
- Germany
- Prior art keywords
- transducer
- secondary winding
- heated
- bimetallic
- strip
- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
- H01H71/164—Heating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
- H01H71/164—Heating elements
- H01H2071/165—Heating elements the bimetal being inductively heated, e.g. load current does not pass through bimetal
Landscapes
- Thermally Actuated Switches (AREA)
Description
Die Erfindung bezieht sich auf einen durch einen Meßwandl:e.r beheizten, um den Wandlerkern herumgelegten, zum Auslösten elektrischer Schalter dienenden Bimetallstreifen, der direkt ausschließlich durch die Verlustwärme der kurzgeschlossenen Sekundärwicklung des Meßwandlers beheizt wird.The invention relates to a heated by a Messwandl: e.r, around the converter core, serving to trigger electrical switches Bimetal strip that is directly produced exclusively by the heat loss of the short-circuited Secondary winding of the transducer is heated.
Die Erfindung gestattet die bei einem solchen Bimetallauslöser vorgeschlagene unmittelbare Beheizung des Bimetallstreifens durch die an der Sekundärwicklung ierzeugte Wärme dadurch noch weiterhin zu fördern, daß der um den Wandlerkern herumgelegte Bimetalliatreifen als ein in sich geschlossener, vom Magnetstrom des Wandlers durchseitzter Kurzschlußring ausgebildet und so an der Sekundärwicklung des Meßwandlers befestigt und angeordnet ist, daß der Ausschlag des Bimetallstreifens gegenüber der Sekundärwicklung so gering ist, daß die Wärme von der Seku!ndärwicklung. auf den Bimetall'streifen auch während des Ansprechens nicht nur durch direkte Wärmeleitung über die Befestigungsstelle und die _ umsiebende Luft, sondern noch in weitgehendem Maße durch Strahlung übertragen wird.The invention allows the proposed for such a bimetal release direct heating of the bimetallic strip by the generated on the secondary winding To further promote heat by the fact that the one around the converter core Bimetal tire as a self-contained, permeated by the magnetic current of the converter Formed short-circuit ring and so attached to the secondary winding of the transducer and it is arranged that the deflection of the bimetal strip with respect to the secondary winding is so little that the heat from the secondary winding. on the bimetallic strip even during the response, not only through direct heat conduction via the attachment point and the sifting air, but still largely transmitted by radiation will.
Es ist zwar bereits bekannt, ein Heizelement als Kurzschlußring auszubilden. Der Kurzschlußring besteht hierbei jedoch aus einem Rohr, das Quecksilber oder irgendeine andere auszudehnende oder zu verdampfende Flüssigkeit enthält. Auf dem Magnetkern :sind hierbei seine goder mehrere Kurzschlußwindunggen vorgesehen, die zur Veränderung der Schaltzeit mit Hilfe seiner zusätzlichen, Vorrichtung verstellt werden.It is already known to design a heating element as a short-circuit ring. The short-circuit ring here consists of a tube, the mercury or some Contains other liquid to be expanded or evaporated. On the magnetic core : here are his goder several short-circuit windings intended for the change the switching time can be adjusted with the help of its additional device.
In der Zeichnung wist Bein- Ausführungsbeispiel nach der Erfindung dargestellt.In the drawing leg embodiment according to the invention shown.
Fig. i und 2 zeigen die Anbrdnung im Schnitt und in Ansicht.Figs. I and 2 show the attachment in section and in elevation.
Durch das Fenster einfies aus lamellierten Blechen bestehenden Eisenkernes 2 ist der insbesondere stabförmige Primärleiter i hindurchgeführt. Einer der Magnetschenkel des Eisenkernes 2 ist von einem als Sekundärwicklung (Niedervolitwicklung) dienendem Kurzschlußring 3 umgeben. An dem Kurzschlußring ist ein z. B. durch Stanzen hergestelltes Bimetall 4 vorgesehen, das im kalten Zustand mit seiner ganzen Fläche auf dem Kurzschlußring aufliegt. Dias um den Magnetschenkel des Meßwandlers (Stromwandlers) herumgelegte Bimetall4 ist an seiner Stel'die mit dem Kurzschlußring z. B. mit Hilfe von Nieten, Schraubenoder durch Schweißen b:zw. Löten verbunden.An iron core made of laminated sheet metal was inserted through the window 2 the in particular rod-shaped primary conductor i is passed through. One of the magnetic legs of the iron core 2 is of a secondary winding (low voltage winding) serving Short-circuit ring 3 surround. On the short-circuit ring is a z. B. manufactured by stamping Bimetal 4 is provided, which in the cold state with its entire surface on the short-circuit ring rests. Slides placed around the magnetic leg of the transducer (current transformer) Bimetall4 is at its Stel'die with the short-circuit ring z. B. with the help of rivets, Screwing or welding b: betw. Soldering connected.
Der den Magnetschenkel umschließende Bimetallring wird somit vom Magnetfluh des Meßw andlers durchflossen, so daß außer der guten Wärmeübertragung vom Kurzschlußring nach dem Bimetall dieses durch die in ihm erzeugten Wirbelströme zusätzlich erhitzt wird.The bimetallic ring surrounding the magnet leg is thus from the Magnetfluh of the transducer, so that in addition to the good heat transfer from the short-circuit ring after the bimetal, this is additionally heated by the eddy currents generated in it will.
Fig. 2 zeigt den Bimetallring 4 in warmem Zustand. Der Ausschlag des Bimeta,llringes ist leim Ansprechen somit so gering, daß die Wärme von der Sekundärwicklung auf dien Bimetallstreifen auch während des Anspre;chens nicht nur durch direkte Wärmeleitung über die Befestigungsstelle und die umgebende Luft, sondern auch in weitgehendem Maße durch Strahlung übertragen wird.Fig. 2 shows the bimetal ring 4 in a warm state. The rash of the Bimeta, llringes is so low in response that the heat from the secondary winding on the bimetallic strips also during the addressing not only through direct Heat conduction through the attachment point and the surrounding air, but also in is largely transmitted by radiation.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES6100D DE915957C (en) | 1940-03-29 | 1940-03-29 | Bimetal release heated by a transducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES6100D DE915957C (en) | 1940-03-29 | 1940-03-29 | Bimetal release heated by a transducer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE915957C true DE915957C (en) | 1954-08-02 |
Family
ID=7471791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES6100D Expired DE915957C (en) | 1940-03-29 | 1940-03-29 | Bimetal release heated by a transducer |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE915957C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2830079A1 (en) * | 2013-07-26 | 2015-01-28 | Siemens Aktiengesellschaft | Bimetal unit, trip unit, circuit breaker, series of circuit breakers, and method for calibrating circuit breaker |
WO2017173813A1 (en) * | 2016-04-05 | 2017-10-12 | 浙江正泰电器股份有限公司 | Thermal tripping apparatus for moulded case circuit breaker |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE309621C (en) * | ||||
GB271439A (en) * | 1926-05-20 | 1928-02-09 | Gen Electric | Improvements in and relating to thermal and magnetic protective or indicating devices for electric circuits |
-
1940
- 1940-03-29 DE DES6100D patent/DE915957C/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE309621C (en) * | ||||
GB271439A (en) * | 1926-05-20 | 1928-02-09 | Gen Electric | Improvements in and relating to thermal and magnetic protective or indicating devices for electric circuits |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2830079A1 (en) * | 2013-07-26 | 2015-01-28 | Siemens Aktiengesellschaft | Bimetal unit, trip unit, circuit breaker, series of circuit breakers, and method for calibrating circuit breaker |
WO2017173813A1 (en) * | 2016-04-05 | 2017-10-12 | 浙江正泰电器股份有限公司 | Thermal tripping apparatus for moulded case circuit breaker |
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