DE1565150C3 - Electric heating element - Google Patents
Electric heating elementInfo
- Publication number
- DE1565150C3 DE1565150C3 DE19651565150 DE1565150A DE1565150C3 DE 1565150 C3 DE1565150 C3 DE 1565150C3 DE 19651565150 DE19651565150 DE 19651565150 DE 1565150 A DE1565150 A DE 1565150A DE 1565150 C3 DE1565150 C3 DE 1565150C3
- Authority
- DE
- Germany
- Prior art keywords
- heating
- grooved
- groove
- heating rod
- grooves
- 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
- 238000005485 electric heating Methods 0.000 title claims 2
- 238000010438 heat treatment Methods 0.000 claims description 43
- 238000009434 installation Methods 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 11
- 239000000919 ceramic Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 210000001331 nose Anatomy 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/16—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being mounted on an insulating base
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/002—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release using electrical energy supply
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
- G05D23/1923—Control of temperature characterised by the use of electric means characterised by the type of controller using thermal energy, the cost of which varies in function of time
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Resistance Heating (AREA)
- Furnace Details (AREA)
Description
Die Erfindung betrifft einen elektrischen Heizeinsatz zum Einbau in Nachtstromspeicheröfen oder ähnliche Geräte, !bestehend aus einem rohrförmigen Rillenheizstab aus Isoliermaterial und einer Heizwicklung, die in gewindeartig um den Rohrumfang des Rillenheizstabes verlaufenden Rillen gleichen Querschnitts gelagert ist.The invention relates to an electrical heating insert for installation in night storage heaters or Similar devices,! consisting of a tubular, grooved heating rod made of insulating material and a heating coil, which are the same as grooves running in a thread-like manner around the pipe circumference of the grooved heating rod Cross-section is stored.
Es ist bekannt, in dem Speicherstein des Ofens offene Heizdrahtwendeln anzuordnen. Diese an sich einfache und billige Ausführungsart hat jedoch den Nachteil, daß dieDrahtwendeln erst am Auf stellungsort des Ofens in diesen eingebaut werden können und somit ihre ordnungsgemäße Funktion sehr von der Sachkunde des Monteurs abhängig ist.It is known to arrange open heating wire coils in the storage stone of the furnace. This in itself however, a simple and cheap type of construction has the disadvantage that the wire coils are only installed at the place of installation of the furnace can be built into them and thus their proper function is very important depends on the fitter's expertise.
Es ist ferner bekannt, den Heizeinsatz in Form eines Wendeltellers auszubilden und diesen dann in eine entsprechende Bohrung im Speicherofen einzulegen. Die geschlossene Bauart dieser Heizeinsätze erlaubt jedoch keine Luftführung im Heizkanal, so daß Überhitzungen des Heizleiters auftreten können. Man hat auch schon vorgeschlagen, rohrförmige Heizleiter zu verwenden, die in entsprechend geformten Bohrungen des Speicherofens eingelassen werden. Diese Ausführungsart genügt wohl allen technischen Anforderungen, ist jedoch auf Grund des erforderlichen hochwertigen Rohrmantels, der gewöhnlich aus Chromnickelstahl gefertigt wird, verhältnismäßig teuer.It is also known to design the heating insert in the form of a helical plate and then convert it into insert a corresponding hole in the storage heater. The closed design of these heating inserts however, does not allow air to be routed in the heating duct, so that overheating of the heating conductor can occur. It has also been proposed to use tubular heating conductors that are shaped accordingly Holes of the storage heater are embedded. This type of execution is probably sufficient for everyone technical requirements, however, due to the required high-quality pipe jacket, the is usually made of chrome-nickel steel, relatively expensive.
Durch das deutsche Gebrauchsmuster 1730 749 ist ferner ein Heizwiderstand bekannt, der aus einem rohrförmigen Trägerkörper aus Isoliermaterial besteht, dessen Heizwicklung in gewindeartig um den Rohrumfang des Trägerkörpers verlaufenden Rillen gelagert ist. Bei Dehnung der Heizwicklung kann diese aus den Rillen herausfallen und einen Windungskurzschluß verursachen.By the German utility model 1730 749 a heating resistor is also known, which consists of a tubular support body consists of insulating material, the heating winding in a thread-like manner around the pipe circumference of the carrier body extending grooves is stored. If the heating coil is stretched, it can fall out of the grooves and cause a winding short circuit.
Durch die britische Patentschrift 303 727 ist es außerdem schon bekanntgeworden, den Heizleiter wendelförmig in den Rillen eines Stabes aus Isolierwerkstoffen anzuordnen und zwei Reihen von Laschen am Umfang des Stabes vorzusehen, die den Heizleiter zusätzlich fixieren sollen. Derartige Heizeinsätze haben jedoch den Nachteil, daß der Isolierstab nicht einfach zu fertigen ist und immer noch die Gefahr besteht, daß der Heizleiter bei höherer Belastung und damit stärkerer Dehnung zwischen den Laschen durchhängt.It has also already become known through British patent specification 303 727, the heating conductor to be arranged helically in the grooves of a rod made of insulating material and two rows of Provide tabs on the circumference of the rod, which should also fix the heating conductor. Such heating inserts however, have the disadvantage that the insulating rod is not easy to manufacture and still the There is a risk that the heating conductor at higher loads and thus greater expansion between the Tabs sagging.
Es ist Aufgabe dieser Erfindung, diese Nachteile zu beheben und einen als Rillenheizstab ausgebildeten Heizeinsatz zu schaffen, bei dem der Heizleiter bei allen Betriebstemperaturen einwandfrei in den Rillen festgelegt bleibt.The object of this invention is to remedy these disadvantages and to provide a heating element designed as a groove To create a heating element in which the heating conductor can be properly inserted at all operating temperatures Grooves remains set.
Zur Lösung dieser Ausgabe wird gemäß vorliegender Erfindung vorgeschlagen, die Rillen im Querschnitt gesehen schräg zur Längsachse des Rillenheizstabes anzuordnen, so daß der Rillengrund tiefer liegt als die untere Begrenzungskante, welche die Rille mit dem Außenmantel des Rillenheizstabes bildet.To solve this issue, it is proposed according to the present invention, the grooves in cross section seen obliquely to the longitudinal axis of the Rillenheizstabes so that the groove bottom deeper lies as the lower boundary edge, which the groove with the outer jacket of the Rillenheizstabes forms.
Diese neuartige Ausbildung des Heizeinsatzes ermöglicht einen einfachen Einbau in den Ofen und vermeidet sicher das Herausgleiten der Heizleiterwendeln aus den Rillen, ein Umstand der bisher die Verwendung derartiger Rillenheizstäbe für Speicheröfen ausschloß. Es wurde überraschend festgestellt, daß der erfindungsgemäße Heizeinsatz Heizleitertemperaturen ermöglicht, die bei 1100° C und mehr liegen, ohne daß die Gefahr besteht, daß die HeizleLterwendel, die bei derartigen Temperaturen nur noch einen Bruchteil ihrer ursprünglichen mechanischen Festigkeit besitzt, aus den Rillen gleitet und dadurch zu Kurzschlüssen führt.This novel design of the heating insert allows easy installation in the furnace and safely prevents the heating conductor coils from sliding out of the grooves, a fact that has hitherto been the case The use of such grooved heating rods for storage stoves was excluded. It was surprisingly found that the heating insert according to the invention enables heating conductor temperatures at 1100 ° C and more lie without the danger that the heating element coil, which at such temperatures only still has a fraction of its original mechanical strength, slides out of the grooves and thereby leads to short circuits.
Der Gegenstand der !Erfindung ist in der Zeichnung in zwei Ausführungsbeispielen dargestellt. Es zeigtThe object of the invention is shown in the drawing in two exemplary embodiments. It shows
Fig. 1 einen im Ofen eingebauten Heizeinsatz in teilweisem Längsschnitt,1 shows a heating insert installed in the furnace in partial longitudinal section,
Fig. 2 ein weiteres Ausführungsbeispiel.Fig. 2 shows a further embodiment.
Der Heizeinsatz besteht im wesentlichen aus einem Keramikrohr 1, dessen Mantel mit schraubenförmig angelegten Rillen 2 versehen ist, einem Heizleiter 3, der in Form einer Wendel in den Rillen 2 liegt und einer Zentrierplatte 4, mittels derer der Einsatz in eine Bohrung des Speicherofens 5 eingesetzt werden kann. Das Keramikrohr 1 hat eine im Durchmesser verhältnismäßig große Bohrung 6, die als Luftführung dient. Außerdem werden durch diese Bohrung 6 auch die Anschlußenden 7 und 8 des Heizleiters nach oben geführt.The heating element consists essentially of a ceramic tube 1, the jacket of which is helical applied grooves 2 is provided, a heating conductor 3, which is in the form of a helix in the grooves 2 and a centering plate 4, by means of which the insert can be inserted into a bore in the storage furnace 5 can. The ceramic tube 1 has a bore 6, which is relatively large in diameter, which acts as an air duct serves. In addition, the connecting ends 7 and 8 of the heating conductor are through this bore 6 led up.
Wie die F i g. 1 zeigt, sind die Rillen 2 so gestaltet, daß der Rillengrund 9 tiefer liegt als die untere Begrenzungskante 10 der Rille. Die Rille liegt im Querschnitt gesehen, dadurch schräg gegen die Längsachse des Keramikrohres 1 geneigt, so daß der Heizleiter sicher in der Rille liegen bleibt.As the F i g. 1 shows, the grooves 2 are designed so that the groove bottom 9 is lower than the lower delimiting edge 10 the groove. Seen in cross-section, the groove lies obliquely with respect to the longitudinal axis of the ceramic tube 1 inclined so that the heating conductor remains securely in the groove.
Die Rillenwände 11 und 12 können dabei, wie die Fig. 1 zeigt, parallel zueinander laufen, oder wie in F i g. 2 dargestellt, derart, daß die untere Rillenwand 12 im wesentlichen senkrecht steht, während die obere Rillenwand 11 schräg nach oben verläuft. Es ist selbstverständlich, daß im Rahmen dieser Erfindung auch noch eine Vielzahl anderer Ausführungsformen zur Erreichung des vorgenannten Zwecks möglich sind.The groove walls 11 and 12 can, as FIG. 1 shows, run parallel to one another, or as in FIG F i g. 2 shown, such that the lower groove wall 12 is substantially perpendicular, while the upper groove wall 11 runs obliquely upwards. It goes without saying that within the scope of this invention also a variety of other embodiments to achieve the aforementioned purpose possible are.
Zur Befestigung des Heizeinsatzes im Speicherofen dient die schon erwähnte Zentrierplatte 4, die auf dem oberen Rand einer Bohrung 13 des Ofens aufsitzt und andererseits in eine Ringnut 14 des Keramikrohres 1 greift. Mehrere nach unten abgewickelte Nasen 15 sichern die einwandfreie Zentrierung des Heizeinsatzes in der Bohrung und erleichtern damit den fachgerechten Einbau.The already mentioned centering plate 4 is used to fasten the heating element in the storage heater sits on the upper edge of a bore 13 of the furnace and on the other hand in an annular groove 14 of the Ceramic tube 1 engages. Several downwardly unwound noses 15 ensure proper centering of the heating element in the hole and thus facilitate professional installation.
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET0029945 | 1965-12-04 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE1565150A1 DE1565150A1 (en) | 1970-02-12 |
| DE1565150B2 DE1565150B2 (en) | 1971-04-08 |
| DE1565150C3 true DE1565150C3 (en) | 1975-10-16 |
Family
ID=7555249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19651565150 Expired DE1565150C3 (en) | 1965-12-04 | 1965-12-04 | Electric heating element |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1565150C3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10041546A1 (en) * | 2000-08-24 | 2002-03-07 | Vasily Marmor Imp Gmbh | Plate-shaped panel radiator with heating conductors inserted and glued in channels, method for inserting the heating conductor and roller arrangement for carrying out the method |
-
1965
- 1965-12-04 DE DE19651565150 patent/DE1565150C3/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1565150A1 (en) | 1970-02-12 |
| DE1565150B2 (en) | 1971-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2849266A1 (en) | ELECTRIC RADIATOR FOR FLUID MEDIA | |
| DE2729929C3 (en) | Radiant heating unit for glass ceramic electric cookers | |
| DE2263260A1 (en) | RADIATORS FOR FAN-DRIVEN HEATERS, IN PARTICULAR SMALL RADIATORS FOR HAIR DRYERS OR THE SAME | |
| DE3536981C2 (en) | ||
| DE102016121571A1 (en) | Heat-conducting body for a nozzle heater and nozzle heater | |
| DE1565150C3 (en) | Electric heating element | |
| DE3509985A1 (en) | Electrical resistance heating element | |
| DE19716010C1 (en) | Extremely thin, safe, metal-clad electrical heater with integral thermocouple | |
| DE3878166T2 (en) | ELECTRIC COOKING UNIT AND ELECTRICAL COOKING EQUIPMENT THEREFORE. | |
| DE655846C (en) | Ceiling and wall heating system | |
| DE2326274B2 (en) | Fixed electrical resistance component | |
| CH652197A5 (en) | Arrangement of an electric heating element in a duct for heating in particular an airflow flowing through it | |
| DE68917337T2 (en) | Electrical heating resistor for warm air generators. | |
| DE202017103136U1 (en) | Heat-resistant support element and heating element | |
| DE505384C (en) | Storage of heating resistors in electric ovens | |
| DE1515216A1 (en) | Heating element | |
| AT162734B (en) | Electric furnace for annealing items stacked in a ring | |
| DE528836C (en) | Electric wind heater with heating elements made of resistance wire windings that are perpendicular to the wind direction | |
| DE2128157A1 (en) | Radiators for heating a stream of air, especially for hair dryers | |
| DE1565849A1 (en) | Electric radiant heater | |
| DE2635227C3 (en) | Process for the production of a heating wire coil from electrical resistance heating wire | |
| AT257766B (en) | Inductor for electrical induction heating | |
| DE2630212A1 (en) | Continuous flow heater for coffee making machine - has water duct and tubular space for heater made as integral unit | |
| AT154767B (en) | Indirectly heated cathode for electrical discharge tubes. | |
| DE684751C (en) | Heating resistor made of sheet metal strips intended for electrical ovens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 | ||
| EGA | New person/name/address of the applicant | ||
| EF | Willingness to grant licences | ||
| 8339 | Ceased/non-payment of the annual fee |