DE719197C - Temperature controller for electrically heated devices with a heat-sensitive bimetal control element - Google Patents
Temperature controller for electrically heated devices with a heat-sensitive bimetal control elementInfo
- Publication number
- DE719197C DE719197C DEA87097D DEA0087097D DE719197C DE 719197 C DE719197 C DE 719197C DE A87097 D DEA87097 D DE A87097D DE A0087097 D DEA0087097 D DE A0087097D DE 719197 C DE719197 C DE 719197C
- Authority
- DE
- Germany
- Prior art keywords
- cavity
- controller
- heated
- heat
- bimetal
- 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
- H05B1/0213—Switches using bimetallic elements
-
- 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
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
- Contacts (AREA)
Description
ßur. ίπ«ί Ligendomßur. ίπ «ί Ligendom
-■5 JTO 1942- ■ 5 JTO 1942
AUSGEGEBEN AM ■1. APRIL 1942 ISSUED ON ■ 1. APRIL 1942
Die Erfindung bezieht sicli auf solche Temperaturregler für elektrisch, beheizte Geräte, bei denen das Öffnen und Schließen des Stromkreises über einen von der zu über-S wachenden Temperatur beeinflußten Bimetallstreifen erfolgt. The invention relates to such temperature regulators for electrically heated devices where the opening and closing of the Circuit takes place via a bimetallic strip influenced by the temperature to be monitored.
Solche Regler sind an sich bekannt, und es sind eine ganze Reihe von Ausführungsbeispielen bekanntgeworden, die allesamt bestrebt sind, die Ansprechgenauigkeit des Reglers durch besondere konstruktive Maßnahmen zu erhöhen. Bei den. meisten dieser Regler erfolgt die Übertragung der von der beheizten Fläche erzeugten Wärme auf das Bimetallorgan durch die das Bimctallorgan umgebende" Luft, die bekanntlich einen sehr schlechten Wärmeleiter darstellt, wodurch derartige Regler in den meisten Fällen mehr oder weniger ungenau ansprechen. Um diesen Nachteil zu beseitigen, sind Ausführungsbeispiele bekanntgeworden, bei denen das Bimetallorgan fest gegen die zu beheizende Fläche mittels einer Schnalle o. dgl. angepreßt ist und bei denen lediglich ein kleines, freies Ende des Bimetallorgans unter dem Einfluß der Erwärmung die notwendige Schaltbewegung zur Trennung der Kontakte ausführt. Derartige Regler weisen zwar einen verhältnismäßig guten Wärmeübergang von der beheizten Fläche zum Bimetallorgan auf, ihr Anwendungsgcbict ist jedoch beschränkt, da es nur in den wenigsten. Fällen möglich ist, das Binictallorgan in innige und unmittelbare Berührung mit der beheizten Fläche zu bringen.Such regulators are known per se, and there are a number of exemplary embodiments became known, all of which strive to improve the response accuracy of the controller to increase through special constructive measures. Both. most of this regulator is done the transfer of the heat generated by the heated surface to the bimetallic organ by the "air" surrounding the bimetal organ, which is known to be very bad Represents heat conductors, whereby such regulators in most cases more or less address imprecisely. In order to overcome this disadvantage, there are exemplary embodiments became known in which the bimetallic organ firmly against the surface to be heated by means of a buckle or the like. Is pressed and in which only a small, free end of the bimetallic organ under the influence of heating the necessary switching movement for Separation of contacts carries out. Such regulators have a relatively good heat transfer from the heated surface to the bimetallic organ however, it is limited as it is only in the least. Cases is possible, the Binictallorgan to bring into intimate and immediate contact with the heated surface.
Die Erfindung beseitigt sämtliche Schwierigkeitcn vollkommen, die sich aus einem schlechten Wärmeübergang zwischen der beheizten Fläche und dem Bimetallorgan ergeben. Dieses wird erfindungsgemäß dadurch erreicht, daß das Bimetallglied innerhalb einesThe invention completely eliminates all the difficulties that arise from one result in poor heat transfer between the heated surface and the bimetallic organ. This is achieved according to the invention in that the bimetal member within a
Claims (1)
In der Zeichnung ist ein Ausführungsbci-Cavity of the body to be heated in a highly thermally conductive, liquid. or a substance that melts below the operating temperature is embedded and the strobe movements are transmitted to the external regulator contacts by means of a pin through a sealing, but flexible cover of the cavity. The inventive design of the controller makes it possible that ο the bimetal element retains the largest possible switching path without the heat transfer resistance between the bimetal element and the heated surface increasing.
In the drawing is an embodiment
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1662737A GB497279A (en) | 1937-06-15 | 1937-06-15 | Improvements in and relating to thermostatic controlling devices |
Publications (1)
Publication Number | Publication Date |
---|---|
DE719197C true DE719197C (en) | 1942-04-01 |
Family
ID=10080728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA87097D Expired DE719197C (en) | 1937-06-15 | 1938-06-10 | Temperature controller for electrically heated devices with a heat-sensitive bimetal control element |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE719197C (en) |
GB (1) | GB497279A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE971340C (en) * | 1945-12-17 | 1959-01-15 | Bbc Brown Boveri & Cie | Small thermostat |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL109156C (en) * | 1957-11-21 |
-
1937
- 1937-06-15 GB GB1662737A patent/GB497279A/en not_active Expired
-
1938
- 1938-06-10 DE DEA87097D patent/DE719197C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE971340C (en) * | 1945-12-17 | 1959-01-15 | Bbc Brown Boveri & Cie | Small thermostat |
Also Published As
Publication number | Publication date |
---|---|
GB497279A (en) | 1938-12-15 |
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