DE3709285A1 - Electrical heating cartridge having an intrinsically different power emission - Google Patents

Electrical heating cartridge having an intrinsically different power emission

Info

Publication number
DE3709285A1
DE3709285A1 DE19873709285 DE3709285A DE3709285A1 DE 3709285 A1 DE3709285 A1 DE 3709285A1 DE 19873709285 DE19873709285 DE 19873709285 DE 3709285 A DE3709285 A DE 3709285A DE 3709285 A1 DE3709285 A1 DE 3709285A1
Authority
DE
Germany
Prior art keywords
winding
heating
heating conductor
heating cartridge
cartridge
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.)
Granted
Application number
DE19873709285
Other languages
German (de)
Other versions
DE3709285C2 (en
Inventor
Erich Hillinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tuerk and Hillinger GmbH
Original Assignee
Tuerk and Hillinger GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tuerk and Hillinger GmbH filed Critical Tuerk and Hillinger GmbH
Priority to DE19873709285 priority Critical patent/DE3709285A1/en
Publication of DE3709285A1 publication Critical patent/DE3709285A1/en
Application granted granted Critical
Publication of DE3709285C2 publication Critical patent/DE3709285C2/de
Granted legal-status Critical Current

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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/46—Heating elements having the shape of rods or tubes non-flexible heating conductor mounted on insulating base

Abstract

In the case of a series of applications for electrical heating cartridges, which consist of a heating conductor wound on a winding former and of a metal casing which envelopes this heating conductor, it is required that the heating cartridge emit different power levels in various zones along its length, in order thus to comply with the requirements of the item to be heated, for example a tool. The present invention is based on the object of making possible differences of any desired magnitude in the heat emission and in the thermal behaviour of the individual zones of a heating cartridge in order thus to achieve objective heat emission from the cartridge casing of the various parts of the item which is to be heated. This object is achieved according to the invention in that the heating conductor consists of two or more parts having intrinsically different resistivities and/or different resistance change coefficients.

Description

Die Erfindung betrifft eine elektrische Heizpatrone gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to an electric heating cartridge according to the Preamble of claim 1.

Heizpatronen mit in sich unterschiedlicher Wärmeleistung werden beispielsweise bei Werkzeugen benötigt, die in bestimmten Zonen einen erhöhten, oder auch geringeren Wärmebedarf haben, also ei­ ne gezielte Zuführung von Wärme erfordern.Cartridges with different heat output are for example, tools needed in certain zones have an increased or also lower heat requirement, i.e. egg require a targeted supply of heat.

Bekannte Heizpatronen dieser Art weisen zu diesem Zweck verschie­ den große Steigungen in der Heizleiterwicklung auf, d. h. die An­ zahl der Windungen pro Längeneinheit des Wickelkörpers ist im Verlauf des Wickelkörpers verschieden groß. Diese Maßnahme ist jedoch nur sehr begrenzt anwendbar, bedingt durch die bei der Herstellung vorgegebenen kleinsten, bzw. größtmöglichen Stei­ gungen der HeizleiterwicklungenKnown cartridge heaters of this type have different for this purpose the large slopes in the heating conductor winding, d. H. the An number of turns per unit length of the winding body is in Course of the winding body of different sizes. This measure is however, it can only be used to a very limited extent, due to the fact that Manufacture of the smallest or largest possible set heating conductor windings

Der vorliegenden Erfindung liegt nun die Aufgabe zugrunde, die möglichen Unterschiede in der Wärmeabgabe und dem Wärmeverhal­ ten der einzelnen Zonen der Heizpatrone zu erweitern, um so die gezielte Wärmeabgabe des Patronenmantels an die verschie­ denen Teile des zu beheizenden Gegenstandes wesentlich zu ver­ bessern.The present invention is based on the object possible differences in heat emission and heat behavior ten of the individual zones of the heating cartridge, so the targeted release of heat from the cartridge jacket to the various which parts of the object to be heated ver ver improve.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Pa­ tentanspruchs 1 gelöst.This task is characterized by the characteristic features of Pa claim 1 solved.

Mit dieser neuartigen Heizpatrone lassen sich, sowohl beim Anfahrbetrieb, als auch beim Dauerbetrieb, die dabei erforder­ lichen Leistungsabgaben an den zu beheizenden Gegenstand in all seinen Bereichen in hohem Maß bestimmen.With this new type of heating cartridge, both at  Start-up operation, as well as in continuous operation, which are required Lichen power output to the object to be heated in determine all of its areas to a high degree.

Der Gegenstand der Erfindung ist in einem Ausführungsbeispiel in der Zeichnung dargestellt und nachfolgend beschrieben. Es zeigtThe object of the invention is in one embodiment shown in the drawing and described below. It shows

Fig. 1 das Schaltschema der erfindungsgemäßen Heizpatrone, Fig. 1 shows the circuit diagram of the heating cartridge according to the invention,

Fig. 2 die beiden vormontierten Wickelkörpers der Heizpatrone und Fig. 2 shows the two pre-assembled winding body of the heating cartridge and

Fig. 3 die fertig montierte Heizpatrone, teilwei­ se im Schnitt. Fig. 3 shows the fully assembled heating element, partially in section.

Wie die Fig. 1 zeigt, hat die Heizpatrone zwei Heizleiterwick­ lungen 1 und 2, wovon die eine, kleinere Wicklung 1 einen Heiz­ leiter mit relativ kleinen Temperaturwiderstandskoeffizienten aufweist, während dieser Koeffizient bei der zweiten Wicklung sehr hoch ist. Beide Wicklungen 1 und 2 sind hintereinanderge­ schaltet und werden über zwei nach außerhalb der Patrone ge­ führte Anschlußdrähte 3 und 4 mit Strom versorgt. Zwischen den beiden Wicklungen 1 und 2 ist ein Verbindungsdraht 5 vorgesehen.As shown in Fig. 1, the heating cartridge has two Heizleiterwick lungs 1 and 2 , of which the one, smaller winding 1 has a heating conductor with a relatively small temperature resistance coefficient, while this coefficient is very high in the second winding. Both windings 1 and 2 are switched one behind the other and are supplied with power via two lead wires 3 and 4 led to the outside of the cartridge. A connecting wire 5 is provided between the two windings 1 and 2 .

Aus der Fig. 2 ist zu entnehmen, daß die beiden Wicklungen 1 und 2 je auf einem keramischen Wickelkörper 6, bzw. 7 aufge­ wickelt sind, die mit zwei Bohrungen 8 und 9 zur Aufnahme der Anschlußdrähte, bzw. des Verbindungsdrahtes versehen sind.From Fig. 2 it can be seen that the two windings 1 and 2 are each wound on a ceramic bobbin 6 , or 7 , which are provided with two bores 8 and 9 for receiving the connecting wires, or the connecting wire.

Die genannten Wickelträger 6 und 7 werden zunächst axial zu­ sammengeführt, dann der Anschlußdraht 3 in die Bohrung 9 ein­ geführt und der Kontakt mit dem vorderen Ende 12 der Wicklung 1 hergestellt. Außerdem wird der kürzere Anschlußdraht 4 in die Bohrung 8 eingeführt und mit dem hinteren Ende 13 der Wick­ lung 2 in Kontakt gebracht. Nun wird noch der Verbindungs­ draht 5 in die Bohrung 8 der beiden Wickelkörper 6 und 7 ein­ geführt und dabei der Kontakt mit dem hinteren Ende 14 der Wicklung 1 einerseits und andererseits mit dem vorderen Ende 15 der Wicklung 2 hergestellt, entsprechend dem Schaltschema gemäß der Fig. 1. Der so vormontierte Aufbau wird nun in an sich bekannter Weise in einem einseitig geschlossenen, zylin­ drischen Metallmantel 10 mittels einer körnigen, oder pulveri­ gen Metallverbindung 11, beispielsweise Magnesiumoxyd eingebet­ tet, das noch offene Ende verschlossen und das Ganze einem Ver­ dichtungsverfahren unterworfen.Said winding supports 6 and 7 are first brought together axially, then the connecting wire 3 is guided into the bore 9 and the contact is made with the front end 12 of the winding 1 . In addition, the shorter connecting wire 4 is inserted into the bore 8 and brought into contact with the rear end 13 of the winding 2 . Now the connecting wire 5 is inserted into the bore 8 of the two winding bodies 6 and 7 and the contact with the rear end 14 of the winding 1 on the one hand and on the other hand made with the front end 15 of the winding 2 , in accordance with the circuit diagram according to FIG . 1. the pre-assembled structure is subjected to now known manner tet eingebet in a closed-end, zylin-cylindrical metal shell 10 by means of a granular, or pulveri gen metal compound 11 such as magnesium oxide in a sealed the still open end and sealing method the whole one Ver .

Die für die Heizleiter verwendeten Werkstoffe werden entspre­ chend dem Anwendungsbereich der Heizpatrone gewählt. So kann beispielsweise für die eine Wicklung eine Chrom-Nickel-Legie­ rung und für die zweite Wicklung Nickel-Eisen verwendet werden, oder aber eine Kombination von Eisen/Aluminium und Nickel/Ei­ sen.The materials used for the heating conductors are the same Chosen according to the area of application of the heating cartridge. So can for example a chrome-nickel alloy for one winding and nickel-iron are used for the second winding, or a combination of iron / aluminum and nickel / egg sen.

Bei derartigen Heizleiterkombinationen wird bei ansteigender Temperatur diejenige Wicklung mit der geringen Widerstandsän­ derung konstante Wärmeabgabe aufweisen, während bei der ande­ ren Wicklung mit großem Widerstandsänderungsfaktor der Wider­ stand mit zunehmender Temperatur steigt, die Wärmeabgabe der Wicklung sich also verringert.With such heating conductor combinations, the Temperature the winding with the low resistance constant heat emission, while in the other Ren winding with a large resistance change factor the resistance stood with increasing temperature, the heat emission of the Winding is reduced.

Man kann also, bei richtiger Auslegung der Heizpatrone, al­ len Anforderungen, die der zu beheizende Gegenstand in bezug auf Temperatur und Wärmeaufnahme stellt, gerecht werden.So you can, with the correct design of the heating cartridge, al len requirements relating to the object to be heated temperature and heat absorption.

Ergänzend sei noch hinzugefügt, daß anstelle einer der bei­ den Heizleiterwicklungen auch ein PTC-Element in den Heizlei­ terkreis eingeschaltet werden kann, das dann vor allem auch als Regelwiderstand dient.In addition, it should be added that instead of one of the at the heating conductor windings also a PTC element in the heating cable circuit can be switched on, especially then serves as a control resistor.

Claims (5)

1. Elektrische Heizpatrone mit in sich unterschiedlicher Leistungsabgabe, bestehend aus wenigstens einem, den Heizleiter tragenden Wickelkörper, der mittels einer verdichteten Isoliermasse in einem Metallmantel einge­ bettet ist, dadurch gekennzeichnet, daß der Heizleiter aus zwei, oder mehreren Teilen (1, 2) mit unter sich verschiedenen spezifischen Widerständen und/oder verschiedenen Widerstandsänderungskoeffizi­ enten besteht.1. Electric heating cartridge with inherently different power output, consisting of at least one, the heating conductor carrying winding body, which is embedded in a metal jacket by means of a compressed insulating compound, characterized in that the heating conductor consists of two or more parts ( 1, 2 ) with there are different specific resistances and / or different resistance change coefficients. 2. Elektrische Heizpatrone nach Anspruch 1, dadurch gekennzeichnet, daß ein Teil des mehrteiligen Heizleiters (1, 2) durch ein PTC-Element gebildet wird.2. Electric heating cartridge according to claim 1, characterized in that part of the multi-part heating conductor ( 1, 2 ) is formed by a PTC element. 3. Elektrische Heizpatrone nach Anspruch 1, dadurch gekennzeichnet, daß die Heizleiterteile (1, 2) je auf einem Wickelkörper (6 bzw. 7) aufgewickelt und mittels zweier Anschluß­ drähte (3, 4) und einem Verbindungsdraht (5) elek­ trisch hintereinander geschaltet sind, und daß dieser Aufbau (1, 6 und 2, 7) in axialer Richtung aneinanderge­ reiht im Metallmantel (10) eingebettet ist.3. Electric heating cartridge according to claim 1, characterized in that the heating conductor parts ( 1, 2 ) each wound on a winding body ( 6 or 7 ) and by means of two connecting wires ( 3, 4 ) and a connecting wire ( 5 ) electrically connected in series are, and that this structure ( 1, 6 and 2, 7 ) in the axial direction lined up in the metal jacket ( 10 ) is embedded. 4. Elektrische Heizpatrone nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die eine Heizleiterwicklung (1) aus einer Chrom-Nickel Legierung und die andere Wicklung (2) aus einer Nickel- Eisenverbindung besteht.4. Electric heating cartridge according to claims 1 to 3, characterized in that the heating conductor winding ( 1 ) consists of a chromium-nickel alloy and the other winding ( 2 ) consists of a nickel-iron compound. 5. Elektrische Heizpatrone nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die eine Heizleiterwicklung (1) aus Eisen-Aluminium und die andere Wicklung (2) aus Nickel-Eisen besteht.5. Electric heating cartridge according to claims 1 to 3, characterized in that the heating conductor winding ( 1 ) made of iron-aluminum and the other winding ( 2 ) consists of nickel-iron.
DE19873709285 1987-03-20 1987-03-20 Electrical heating cartridge having an intrinsically different power emission Granted DE3709285A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873709285 DE3709285A1 (en) 1987-03-20 1987-03-20 Electrical heating cartridge having an intrinsically different power emission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873709285 DE3709285A1 (en) 1987-03-20 1987-03-20 Electrical heating cartridge having an intrinsically different power emission

Publications (2)

Publication Number Publication Date
DE3709285A1 true DE3709285A1 (en) 1988-09-29
DE3709285C2 DE3709285C2 (en) 1991-02-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873709285 Granted DE3709285A1 (en) 1987-03-20 1987-03-20 Electrical heating cartridge having an intrinsically different power emission

Country Status (1)

Country Link
DE (1) DE3709285A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10111000A1 (en) * 2001-03-07 2002-09-19 Microhellix Systems Gmbh Heating conductor coil for heating a flowing gaseous medium and electrical resistance heating element
EP1545158A2 (en) * 2003-12-20 2005-06-22 Gustav Wahler GmbH u. Co.KG Heating device, in particular heating device for a thermostatic operational element of a valve of a thermostat
WO2012013896A1 (en) 2010-07-29 2012-02-02 Vernet Heating cartridge, and thermostatic element comprising such a cartridge
CN102536418A (en) * 2011-12-27 2012-07-04 乐清市海狮电热电器制造有限公司 Electro-thermal push bar for electronic thermostat of engine
RU2605887C1 (en) * 2015-08-18 2016-12-27 Акционерное общество "Обнинское научно-производственное предприятие "Технология" им. А.Г. Ромашина" Heating element

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19940618A1 (en) * 1999-08-27 2001-05-03 Watlow Gmbh Heating cable for nozzle of injection molding machine has sleeve containing resistance wire with sections made of different materials, end sections having higher resistance than central section

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067311A (en) * 1956-10-02 1962-12-04 Lacy-Hulbert Cyril Quick heated electric heater
US3307135A (en) * 1966-02-01 1967-02-28 Rama Corp Cartridge heater
US3678249A (en) * 1970-10-21 1972-07-18 Arc O Vec Inc Heater element
US4125761A (en) * 1974-10-08 1978-11-14 Churchill John W Bilateral heater unit
DE2550091C3 (en) * 1975-11-07 1980-01-17 Hotset Heizpatronen U. Zubehoer Gmbh, 5880 Luedenscheid Multi-stage high-performance heating cartridge
DE2551980B2 (en) * 1974-11-20 1980-04-17 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka (Japan) Sealed, thermostatic heating device, especially for hair curling tongs

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067311A (en) * 1956-10-02 1962-12-04 Lacy-Hulbert Cyril Quick heated electric heater
US3307135A (en) * 1966-02-01 1967-02-28 Rama Corp Cartridge heater
US3678249A (en) * 1970-10-21 1972-07-18 Arc O Vec Inc Heater element
US4125761A (en) * 1974-10-08 1978-11-14 Churchill John W Bilateral heater unit
DE2551980B2 (en) * 1974-11-20 1980-04-17 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka (Japan) Sealed, thermostatic heating device, especially for hair curling tongs
DE2550091C3 (en) * 1975-11-07 1980-01-17 Hotset Heizpatronen U. Zubehoer Gmbh, 5880 Luedenscheid Multi-stage high-performance heating cartridge

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10111000A1 (en) * 2001-03-07 2002-09-19 Microhellix Systems Gmbh Heating conductor coil for heating a flowing gaseous medium and electrical resistance heating element
EP1545158A2 (en) * 2003-12-20 2005-06-22 Gustav Wahler GmbH u. Co.KG Heating device, in particular heating device for a thermostatic operational element of a valve of a thermostat
EP1545158A3 (en) * 2003-12-20 2005-10-19 Gustav Wahler GmbH u. Co.KG Heating device, in particular heating device for a thermostatic operational element of a valve of a thermostat
WO2012013896A1 (en) 2010-07-29 2012-02-02 Vernet Heating cartridge, and thermostatic element comprising such a cartridge
CN103222336A (en) * 2010-07-29 2013-07-24 韦内特公司 Heating cartridge, and thermostatic element comprising such a cartridge
CN102536418A (en) * 2011-12-27 2012-07-04 乐清市海狮电热电器制造有限公司 Electro-thermal push bar for electronic thermostat of engine
RU2605887C1 (en) * 2015-08-18 2016-12-27 Акционерное общество "Обнинское научно-производственное предприятие "Технология" им. А.Г. Ромашина" Heating element

Also Published As

Publication number Publication date
DE3709285C2 (en) 1991-02-07

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