DE588744C - Heat timer - Google Patents
Heat timerInfo
- Publication number
- DE588744C DE588744C DEB155701D DEB0155701D DE588744C DE 588744 C DE588744 C DE 588744C DE B155701 D DEB155701 D DE B155701D DE B0155701 D DEB0155701 D DE B0155701D DE 588744 C DE588744 C DE 588744C
- Authority
- DE
- Germany
- Prior art keywords
- rod
- time switch
- spring
- expansion
- switch according
- 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
- H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
- H01H43/30—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action
- H01H43/301—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material
- H01H43/302—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material of solid bodies
- H01H43/304—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material of solid bodies of two bodies expanding or contracting in a different manner, e.g. bimetallic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
- H01H43/30—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action
- H01H43/301—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material
- H01H43/302—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material of solid bodies
- H01H43/303—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material of solid bodies of one single solid body, e.g. hot wire
Landscapes
- Thermally Actuated Switches (AREA)
Description
Die bisher bekanntgewordenen, durch Wärmewirkung gesteuerten Zeitschalter, welche Stromverbraucher, insbesondere Heizgeräte, wegen Brandgefahr nach einer einstellbaren Zeit abschalten, müssen stets der Wattzahl des Stromverbrauchers angepaßt sein. Auch wird die Heiztemperatur der den Ausdehnungsstab umgebenden Heizspirale nach verhältnismäßig kurzer Zeit konstant, so daßThe time switches that have become known so far and are controlled by the effect of heat, which power consumers, especially heaters, due to the risk of fire after an adjustable Switch off time, must always be adapted to the wattage of the power consumer. Also the heating temperature of the expansion rod will be surrounding heating coil constant after a relatively short time, so that
ίο diese Schalter mehr wie Überstrom- als wie stromunabhängige Zeitschalter wirken. Diagramm ι zeigt diese Wirkung. Auf der Abszisse ist die Zeit in Minuten und auf der Ordinate die Temperatur in Celsiusgraden angegeben. ίο these switches more like overcurrent than how current-independent time switches work. Diagram ι shows this effect. On the abscissa the time is given in minutes and the ordinate shows the temperature in degrees Celsius.
Vorliegende Erfindung behebt nun diese Fehler dadurch, daß der zur Erwärmung des Ausdehnungsstabes eingebaute .Heizwiderstand mehrere Anzapfungen hat, die durch von ihm beheizte Bimetallstreifen derart gesteuert werden, daß je nach etwa 15 Minuten, also kurz vor Erreichung der jeweiligen Konstante, ein Teil des Heizwiderstandes abgeschaltet wird; dadurch wird der Ohmsche Widerstand verringert, und es kommt eine neue Heizwirkung zustande, die im Diagramm 2 veranschaulicht ist. Die Zahl der Anzapfungen kann beliebig sein, so daß durch diese Einrichtung der Zeitschalter dem Stromverbraucher, von welchem er vollständig unabhängig arbeitet, leicht angepaßt werden kann. Es können daher Bügeleisen, Heizkissen, Schnellkocher, Lampen, Motoren usw., gleich welcher Wattzahl, und selbst nicht durch Elektrizität betriebene Apparate, wie Gaskocher, Getriebe usw., durch eine Schalteinrichtung gemäß der vorliegenden Erfindung aus- oder eingeschaltet werden.The present invention now eliminates these errors in that the heating of the Expansion rod built-in heating resistor has several taps that run through bimetal strips heated by it are controlled in such a way that, depending on about 15 minutes, shortly before reaching the respective constant, part of the heating resistor is switched off will; this reduces the ohmic resistance and creates a new heating effect, which is shown in the diagram 2 is illustrated. The number of taps can be arbitrary, so that through this device of the time switch to the electricity consumer, from which he completely operates independently, can be easily adapted. You can therefore use irons, heating pads, Pressure cookers, lamps, motors, etc., regardless of the wattage, and not themselves devices operated by electricity, such as gas cookers, gears, etc., by a switching device be turned off or on according to the present invention.
Der Zeitschalter hat also nicht nur den Zweck, Brandgefahr durch Bügeleisen, Heizkissen, Bettwärmer u. dgl. zu verhindern, sondern überhaupt Stromverbraucher jeder Art nach einer einstellbaren Zeit abzuschalten.The purpose of the timer is not only to reduce the risk of fire from irons, heating pads, To prevent bed warmers and the like, but to switch off electricity consumers of all kinds after an adjustable time.
In der Zeichnung ist ein Ausführungsbeispiel dargestellt.An exemplary embodiment is shown in the drawing.
Ein in seiner Längsrichtung verschiebbarer, abgeflachter Ausdehnungsstab α stützt sich an seinem einen Ende gegen einen durch einen Knopf b drehbaren Exzenter c. Sein anderes Ende ist zu einer Schneide O1 ausgebildet und drückt gegen den eingekerbten Hebel d. Dieser Hebel ist um e drehbar gelagert und besitzt am Ende seines langen Hebelarms eine Sperrnase dt. Eine Feder f drückt den Hebel gegen den Ausdehnungs- 5i stab. Ein Schnellschalterteil h besitzt zwei oder mehrere ihrer Länge nach einstellbare, als Schnäpper ausgebildete Sperrklinken hl7 H2, die durch Drehen des Knopfes g hinter die Rast des Hebels d gelangen. Durch Drehen des Knopfes g wird gleichzeitig die Feder i gespannt, die das Bestreben hat, die Schnäp-A flattened expansion rod α , which can be displaced in its longitudinal direction, is supported at one end against an eccentric c rotatable by a knob b. Its other end is formed into a cutting edge O 1 and presses against the notched lever d. This lever is rotatably mounted about e and has a locking lug d t at the end of its long lever arm . A spring f presses the lever against the expansion rod . A quick switch part h has two or more pawls h l7 H 2 which are adjustable in length and designed as catches and which, by turning the knob g, get behind the detent of the lever d . By turning the knob g , the spring i is tensioned at the same time, which tends to release the snap
per in ihre Anfangslage zurückzuschnellen; hieran werden die Schnäpper durch die Sperrnase
des Hebels d so lange verhindert, bis der durch mehrere Anzapfungen pu p2, p$ zu
regelnde und durch Bimetallstreifen ^1, s2, ss
gesteuerte Heizwiderstand p den Stab a so
weit erwärmt und dadurch ausgedehnt hat, daß der Hebel ei durch seinen Ausschlag die
Schnäpper freigibt. Auf einer Verlängerung des Schnellschalterteils h ist drehbar um k
der Kontaktträger / mit den Kontakten η und M1 gelagert. Der Drehpunkt k wird durch
die Drehung des Schnellschalterteils h zwangsläufig verschoben. An dem Kontaktig
träger I und dem Schnellschalterteil h ist mit ihren Enden eine Kippspannfeder in angelenkt.
Die Bewegung der beiden Schalterteile h und·/ ist durch Stiftet, tls t2, i3 begrenzt.
Sobald sie ihre labile Mittellage überschreiten, zieht die gespannte Feder m
den Kontaktträger I plötzlich auf die andere Seite, wodurch ein Momentein- bzw. Momentausschalten
erfolgt und das Verbrennen der Kontakte η und % verhindert wird.
Durch Drehen des Exzenters c über eine Skala kann die Schaltzeit reguliert sowie der
Schalter ausgeschaltet werden.to snap back to its starting position; The catches are prevented from this by the locking lug of the lever d until the heating resistor p, controlled by several taps p u p 2 , p $ and controlled by bimetallic strips ^ 1 , s 2 , s s, heats the rod a so much and thereby has extended that the lever ei releases the catches through its deflection. On an extension of the quick switch part h , the contact carrier / with the contacts η and M 1 is rotatable about k . The pivot point k is inevitably shifted by the rotation of the quick switch part h. At the Kontaktig carrier I and h the quick switch part is hinged in a Kippspannfeder with their ends. The movement of the two switch parts h and · / is limited by pins, t ls t 2 , i 3 . As soon as they exceed their unstable central position, the tensioned spring m suddenly pulls the contact carrier I to the other side, as a result of which a moment is switched on or off and the contacts η and% are prevented from burning.
The switching time can be regulated and the switch can be switched off by turning the eccentric c on a scale.
Das Schaltungsschema des dargestellten Ausführungsbeispiels ist folgendes:
Bei dem Steckstift 0 tritt der Strom in den Schalter; er fließt durch die Kontakte η und W1
zur Steckhülse q des Stromverbrauchers und gleichzeitig über den Heizwiderstand p mit
seinen Anzapfungen P1, p2, p$ zum andern
Steckstift O1. Durch die Erwärmung biegen sich die Bimetallstreifen S1, S2, S3 an die Kontaktschrauben
T1, r2, r3, so daß der Strom jetzt
einen kürzeren Weg über die Bimetallstreifen nach O1 nimmt. Steckstift O1 ist mit Steckhülse
q± direkt verbunden. Durch eine andere
Schaltung braucht das Wesen der Erfindung nicht berührt zu werden. Alle Einzelteile
sind auf einer Steckstiftplatte aufgebaut und mit einem Kasten bedeckt.The circuit diagram of the illustrated embodiment is as follows:
At pin 0 the current enters the switch; it flows through the contacts η and W 1 to the socket q of the power consumer and at the same time via the heating resistor p with its taps P 1 , p 2 , p $ to the other plug pin O 1 . As a result of the heating, the bimetallic strips S 1 , S 2 , S 3 bend against the contact screws T 1 , r 2 , r 3 , so that the current now takes a shorter path over the bimetal strips to O 1 . Pin O 1 is directly connected to receptacle q ±. The essence of the invention need not be affected by any other circuit. All individual parts are built on a pin plate and covered with a box.
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH588744X | 1931-08-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE588744C true DE588744C (en) | 1933-11-25 |
Family
ID=4521990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB155701D Expired DE588744C (en) | 1931-08-21 | 1932-05-12 | Heat timer |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE588744C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1185273B (en) * | 1959-04-29 | 1965-01-14 | Telefunken Patent | Arrangement for reducing the current fluctuations caused by temperature changes in an electrical consumer |
DE1243124B (en) * | 1958-06-07 | 1967-06-29 | Heinz Goch | Electric actuation device for a gas valve in a gas firing system |
-
1932
- 1932-05-12 DE DEB155701D patent/DE588744C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1243124B (en) * | 1958-06-07 | 1967-06-29 | Heinz Goch | Electric actuation device for a gas valve in a gas firing system |
DE1185273B (en) * | 1959-04-29 | 1965-01-14 | Telefunken Patent | Arrangement for reducing the current fluctuations caused by temperature changes in an electrical consumer |
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