DE461262C - Electromagnetic heat regulator, which is based on the change in the permeability of ferromagnetic metals or metal alloys as a result of heating - Google Patents
Electromagnetic heat regulator, which is based on the change in the permeability of ferromagnetic metals or metal alloys as a result of heatingInfo
- Publication number
- DE461262C DE461262C DEW71168D DEW0071168D DE461262C DE 461262 C DE461262 C DE 461262C DE W71168 D DEW71168 D DE W71168D DE W0071168 D DEW0071168 D DE W0071168D DE 461262 C DE461262 C DE 461262C
- Authority
- DE
- Germany
- Prior art keywords
- heating
- permeability
- metal alloys
- change
- result
- 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
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/58—Thermally-sensitive members actuated due to thermally controlled change of magnetic permeability
Description
Der Gegenstand der vorliegenden Erfindungist ein Wärmeregler, der es gestattet, eine bestimmte Temperatur an zu erwärmenden Körpern zu erzielen und gleichmäßig zu erhalten, und zwar durch. Benutzung der bekannten physikalischen Tatsache, daß die magnetische Permeabilität der ferroroagnetischen Metalle und Metall-Legierungen mit zunehmender Temperatur abnimmt bis zu einerThe subject of the present invention is a thermal regulator which allows to achieve a certain temperature on the body to be heated and evenly received, through. Use of the known physical fact that the magnetic permeability of the ferroroagnetic Metals and metal alloys with increasing temperature decreases up to one
ίο bestimmten (der sogenannten kritischen) Temperatur, bei welcher diese Metalle und Metall-Legierungen die ferromagnetischen Eigenschaften vollkommen verlieren.ίο certain (the so-called critical) Temperature at which these metals and metal alloys become ferromagnetic To lose properties completely.
Solche Wärmeregler sind bereits bekannt, und zwar in der Weise wirkend, daß der Kern eines Elektromagneten der Wärmewirkung ausgesetzt wird. Dabei ändert sich seine magnetische Permeabilität, so· daß der Anker des Elektromagneten mehr oder weniger stark angezogen wird und durch einen Kontakt einen Stromkreis schließt oder unterbricht.Such thermal regulators are already known, and that acting in such a way that the core an electromagnet is exposed to the effect of heat. In doing so, its magnetic changes Permeability, so that the armature of the electromagnet is more or less strong is attracted and closes or interrupts a circuit through a contact.
Die vorliegende Erfindung vermeidet den Nachteil eines Kontaktes, der bekanntlich immer in hohem Grade unzuverlässig ist.The present invention avoids the disadvantage of a contact that is known is always highly unreliable.
Der Wärmeregler (siehe Abbildung) besteht nur in einer Drosselspule 5 mit ferromagnetischem Kern 3, welcher der Wärmeeinwirkung (in der Abbildung der Heizplatte 4) ausgesetzt wird. Der über die Drosselspule geführte Wechselstromkreis 1, 2 führt über ein Regelorgan 6, welches die Erwärmung beeinflußt. The heat regulator (see figure) only consists of a choke coil 5 with a ferromagnetic Core 3, which is exposed to the effects of heat (in the figure, the heating plate 4) will. The alternating current circuit 1, 2 passed over the choke coil leads over a Control element 6, which influences the heating.
Der Wärmeregler wirkt so, daß bei kaltem Kern der gesamte induktive Widerstand der Drosselspule im Stromkreis des Regelorgans hegt, so daß dieses nicht ansprechen kann. Bei Erreichung der kritischen Temperatur des Metallkernes verschwindet der induktive Widerstand der Drosselspule nahezu gänzlich, so daß das Regelorgan zum Ansprechen kommt, welches -die Wärmequelle für so lange zum Versiegen bringt, als die kritische Temperatur des Kernes infolge Auskühlung nicht wieder unterschritten ist.The thermal regulator works in such a way that when the core is cold, the entire inductive resistance of the Choke coil in the circuit of the control element so that it cannot respond. When the critical temperature of the metal core is reached, the inductive temperature disappears Resistance of the choke coil almost entirely, so that the control element to respond comes, which brings the heat source to dry up for as long as the critical temperature of the core has not fallen below again as a result of cooling down.
Der Wärmeregler nach der vorliegenden Erfindung stellt also einen Überwärmungsschutz dar, der verläßlicher wirkt als die bisher bekannten elektromagnetischen Wärmeregler, da ear ohne Zuhilfenahme unzuverlässiger Kontakte wirkt.The heat regulator according to the present invention thus represents an overheating protection that works more reliably than before well-known electromagnetic heat regulator, since ear unreliable without assistance Contacts works.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW71168D DE461262C (en) | Electromagnetic heat regulator, which is based on the change in the permeability of ferromagnetic metals or metal alloys as a result of heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW71168D DE461262C (en) | Electromagnetic heat regulator, which is based on the change in the permeability of ferromagnetic metals or metal alloys as a result of heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE461262C true DE461262C (en) | 1928-06-16 |
Family
ID=7608820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEW71168D Expired DE461262C (en) | Electromagnetic heat regulator, which is based on the change in the permeability of ferromagnetic metals or metal alloys as a result of heating |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE461262C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE748746C (en) * | 1939-07-02 | 1944-11-09 | Display or switch-off device for devices for hardening the surface of workpieces by means of inductive heating | |
| DE758093C (en) * | 1939-03-29 | 1953-06-22 | Voigt & Haeffner Ag | Automatic power regulation of electrically heated devices by means of an electromagnetic heat regulator, the magnetizability of which changes depending on the temperature of the device |
| DE940723C (en) * | 1943-07-27 | 1956-03-22 | Aeg | Arrangement for temperature monitoring of electrical equipment on high voltage potential |
| DE3705009A1 (en) * | 1987-02-17 | 1988-08-25 | Bosch Siemens Hausgeraete | HEATING DEVICE WITH ELECTRICALLY HEATED RADIATION HEATING ELEMENTS |
-
0
- DE DEW71168D patent/DE461262C/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE758093C (en) * | 1939-03-29 | 1953-06-22 | Voigt & Haeffner Ag | Automatic power regulation of electrically heated devices by means of an electromagnetic heat regulator, the magnetizability of which changes depending on the temperature of the device |
| DE748746C (en) * | 1939-07-02 | 1944-11-09 | Display or switch-off device for devices for hardening the surface of workpieces by means of inductive heating | |
| DE940723C (en) * | 1943-07-27 | 1956-03-22 | Aeg | Arrangement for temperature monitoring of electrical equipment on high voltage potential |
| DE3705009A1 (en) * | 1987-02-17 | 1988-08-25 | Bosch Siemens Hausgeraete | HEATING DEVICE WITH ELECTRICALLY HEATED RADIATION HEATING ELEMENTS |
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