EP1081986B1 - Rohrheizkörper mit NTC/PTC-Absicherung - Google Patents
Rohrheizkörper mit NTC/PTC-Absicherung Download PDFInfo
- Publication number
- EP1081986B1 EP1081986B1 EP00118875A EP00118875A EP1081986B1 EP 1081986 B1 EP1081986 B1 EP 1081986B1 EP 00118875 A EP00118875 A EP 00118875A EP 00118875 A EP00118875 A EP 00118875A EP 1081986 B1 EP1081986 B1 EP 1081986B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating element
- casing tube
- heating
- tubular
- sleeve
- 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 - Lifetime
Links
Images
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
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0275—Heating of spaces, e.g. rooms, wardrobes
- H05B1/0283—For heating of fluids, e.g. water heaters
-
- 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
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
-
- 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
- H05B3/78—Heating arrangements specially adapted for immersion heating
- H05B3/82—Fixedly-mounted immersion heaters
-
- 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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/019—Heaters using heating elements having a negative temperature coefficient
-
- 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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/02—Heaters using heating elements having a positive temperature coefficient
-
- 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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/021—Heaters specially adapted for heating liquids
Definitions
- the vat Due to the need to use both the tubular heater and various Temperature monitoring elements inside the tub of the washing machine the vat has a number of openings. Apart from the associated increased manufacturing costs these breakthroughs are well sealed, which in turn increases the cost the washing machine increased. In addition, by attaching the Temperature monitoring elements require additional assembly effort.
- a Heating element in the form of a heating wire coil 14, which consists of a Current flow heating resistance wire material is made.
- the heating wire coil 14 is in an electrically insulating but thermally conductive material 16 embedded, such as magnesium oxide. This insulating material 16 is preferably before the tubular heater 10 is fully assembled compacted.
- the filament 14 is at both ends 14a with a connecting element in Form of a connecting pin 18 electrically and thermally connected.
- the Terminal bolt 18 has a first section 18a that leads to the filament 14 points and the conically tapering in the direction of the filament 14 Tip is formed.
- the largest diameter of this first section 18a corresponds essentially to the inside diameter of the heating wire coil 14.
- the NTC element 28b which is designed in the form of a ball or a pill, and possibly already can be covered with an electrical insulation layer is over two separate connecting lines 28d with a fuse and not shown Monitoring or measuring circuit connected.
- the two connecting lines 28d are from the end facing the heating wire coil 14 from the sleeve 28a led out and with corresponding further elements of the security and Monitoring circuit connected.
- the fuse and monitoring circuit is formed separately from the heating circuit. It can be used as a resistance measuring circuit or be designed as a measuring circuit that detects the current drop or the voltage change across the NTC element 28b due to its change in resistance measures.
Landscapes
- Resistance Heating (AREA)
- Thermistors And Varistors (AREA)
- Control Of Resistance Heating (AREA)
- Fuses (AREA)
Description
- Fig. 1
- ein Teillängsschnitt im vergrößerten Maßstab durch ein Ende eines erfindungsgemäßen Rohrheizkörpers gemäß einer ersten Ausführungsform; und
- Fig. 2
- ein Teillängsschnitt im vergrößerten Maßstab durch ein Ende des erfindungsgemäßen Rohrheizkörpers gemäß einer zweiten Ausführungsform.
Claims (13)
- Rohrheizkörper zum Erhitzen von Fluiden, mit wenigstens einem Mantelrohr (12), mit mindestens einem Heizelement (14), das in einem elektrischen Isoliermaterial (16) eingebettet, im Inneren des Mantelrohres (12) angeordnet ist, mit Anschlusselementen (18), die in dem Ende (12a) des Mantelrohres (12) angeordnet sind und über die das Heizelement (14) mit einer Stromquelle verbunden ist, und mit mindestens einem Sicherungselement (28b), das in dem Mantelrohrende (12a) angeordnet ist, das in Wärmeleitungskontakt mit dem Heizelement (14) steht und das ein in Abhängigkeit der Temperatur des Heizelements (14) seinen Widerstand ändemdes Element ist, welches Bestandteil eines von dem Heizstromkreis unabhängigen Messstromkreises ist, mittels dem die Widerstandsänderung des Sicherungselementes (28) erfassbar ist,
dadurch gekennzeichnet, dass das Sicherungselement (28b) in dem Inneren einer Hülse (28a) in ein elektrisch isolierendes, aber wärmeleitendes Material (28c) eingebettet ist, wobei die Hülse (28a) über ein Rohrstück (22) mit einem Anschlusselement (18) verbunden ist. - Rohrheizkörper nach Anspruch 1,
dadurch gekennzeichnet, dass der Mantel der Hülse (28a) aus ausreichend wärmeleitenden Material ist. - Rohrheizkörper nach Anspruche 1 oder 2,
dadurch gekennzeichnet, dass der Mantel der Hülse (28a) Teil des Anschlusses des Heizelements an die Heizstromquelle ist. - Rohrheizkörper nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass das Anschlusselement ein Anschlussbolzen (18) ist, an dessen zu dem Mantelrohrende (12a) weisenden Ende (18b) das Rohrstück (22) aufgeschoben ist, in dessen ebenfalls zu dem Mantelrohrende (12a) weisenden Ende die Hülse (28a) eingeschoben ist. - Rohrheizkörper zum Erhitzen von Fluiden, mit wenigstens einem Mantelrohr (12), mit mindestens einem Heizelement (14), das in einem elektrischen Isoliermaterial (16) eingebettet, im Inneren des Mantelrohres (12) angeordnet ist, mit Anschlusselementen (18), die in dem Ende (12a) des Mantelrohres (12) angeordnet sind und über die das Heizelement (14) mit einer Stromquelle verbunden ist, und mit mindestens einem Sichenrngselement (28b), das in dem Mantelrohrende (12a) angeordnet ist, das in Wärmeleitungskontakt mit dem Heizelement (14) steht und das ein in Abhängigkeit der Temperatur des Heizelements (14) seinen Widerstand ändemdes Element ist, welches Bestandteil eines von dem Heizstromkreis unabhängigen Messstromkreises ist, mittels dem die Widerstandsänderung des Sicherungselementes (28) erfassbar ist,
dadurch gekennzeichnet, dass das Anschlusselement (18) in dem zu dem stirnseitigen Ende (12a) des Mantelrohres (12) weisenden Ende einen nach auβen hin offenen Hohlraum (18c) aufweist, in dem das Sicherungselement (28b) elektrisch isoliert, aber wärmeleitend zu dem Anschlusselement (18) untergebracht ist. - Rohrheizkörper nach Anspruch 5,
dadurch gekennzeichnet, dass das Sicherungselement (28b) mittels elektrisch isolierenden, aber wärmeleitenden Harzverguss (28c) in dem Hohlraum (18c) des Anschlusselementes (18) untergebracht ist. - Rohrheizkörper nach Anspruch 5,
dadurch gekennzeichnet, dass das Sicherungselement (28b) mittels einer elektrisch isolierenden, aber wärmeleitenden Hülse in dem Hohlraum (18c) des Anschlusselementes (18) untergebracht ist. - Rohrheizkörper nach einem der Ansprüche 5 bis 7,
dadurch gekennzeichnet, dass das Anschlusselement ein Anschlussbolzen (18) ist. - Rohrheizkörper nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass der Messstromkreis ein Widerstandsmesskreis ist. - Rohrheizkörper nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass der Messstromkreis ein Messkreis zum Messen des Stromabfalls ist. - Rohrheizkörper nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass der Messstromkreis ein Messkreis zum Messen der Spannungsänderung ist. - Rohrheizkörper nach einem der Ansprüche 1 bis 11,
dadurch gekennzeichnet, dass das Sicherungselement ein PTC-Element ist. - Rohrheizkörper nach einem der Ansprüche 1 bis 11,
dadurch gekennzeichnet, dass das Sicherungselement ein NTC-Element (28b) ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19941901A DE19941901A1 (de) | 1999-09-02 | 1999-09-02 | Rohrheizkörper mit NTC/PTC-Absicherung |
DE19941901 | 1999-09-02 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1081986A2 EP1081986A2 (de) | 2001-03-07 |
EP1081986A3 EP1081986A3 (de) | 2002-05-29 |
EP1081986B1 true EP1081986B1 (de) | 2004-09-01 |
Family
ID=7920589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00118875A Expired - Lifetime EP1081986B1 (de) | 1999-09-02 | 2000-08-31 | Rohrheizkörper mit NTC/PTC-Absicherung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1081986B1 (de) |
AT (1) | ATE275319T1 (de) |
DE (2) | DE19941901A1 (de) |
ES (1) | ES2226677T3 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19937492C2 (de) | 1999-08-07 | 2001-08-23 | Mfh Hyperthermiesysteme Gmbh | Magnetfeldapplikator zur Aufheizung von magnetischen oder magnetisierbaren Substanzen oder Festkörpern in biologischem Gewebe |
DE10118922C1 (de) | 2001-04-18 | 2003-04-30 | Martin Hess | Verfahren zur Sicherung und Regelung einer elektrischen, explosionsgeschützten Heizung und Vorrichtung zur Durchführung des Verfahrens |
ITVI20030248A1 (it) * | 2003-12-09 | 2005-06-10 | Luigi Borelli | Gruppo riscaldante per elementi radianti a fluido diatermico |
ITVE20050024A1 (it) * | 2005-04-15 | 2006-10-16 | I R C A S P A Ind Resiste Nze | Resistenza elettrica corazzata. |
CN101267755B (zh) | 2005-09-19 | 2010-07-28 | 皇家飞利浦电子股份有限公司 | 具有煮水器的饮料制作设备 |
DE102014221497A1 (de) * | 2014-10-23 | 2016-04-28 | Sandvik Materials Technology Deutschland Gmbh | Vorrichtung und Verfahren zum Kühlen eines Fluids |
CN105352186A (zh) * | 2015-10-09 | 2016-02-24 | 芜湖恒美电热器具有限公司 | 一种加热器以及制造加热器的通电干烧搪瓷工艺 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8423034U1 (de) * | 1984-08-02 | 1985-01-03 | Elpag Ag Chur, Chur | Rohrheizkoerper |
DE3843127C2 (de) * | 1988-12-22 | 1995-04-20 | Eltra Gmbh & Co Kg Leicht & Tr | Heizkörper |
DE4014753A1 (de) * | 1990-05-08 | 1991-11-14 | Elpag Ag Chur | Rohrheizkoerper mit sicherung |
DE4344341A1 (de) * | 1993-12-23 | 1995-07-06 | Elpag Ag Chur | Rohrheizkörper mit Überlastsicherung und Temperaturfühler |
-
1999
- 1999-09-02 DE DE19941901A patent/DE19941901A1/de not_active Ceased
-
2000
- 2000-08-31 DE DE50007598T patent/DE50007598D1/de not_active Expired - Lifetime
- 2000-08-31 AT AT00118875T patent/ATE275319T1/de not_active IP Right Cessation
- 2000-08-31 ES ES00118875T patent/ES2226677T3/es not_active Expired - Lifetime
- 2000-08-31 EP EP00118875A patent/EP1081986B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE50007598D1 (de) | 2004-10-07 |
DE19941901A1 (de) | 2001-03-29 |
EP1081986A2 (de) | 2001-03-07 |
ES2226677T3 (es) | 2005-04-01 |
EP1081986A3 (de) | 2002-05-29 |
ATE275319T1 (de) | 2004-09-15 |
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