DE1239416B - Electric instantaneous water heater with ceramic heating resistor - Google Patents

Electric instantaneous water heater with ceramic heating resistor

Info

Publication number
DE1239416B
DE1239416B DE1960S0068229 DES0068229A DE1239416B DE 1239416 B DE1239416 B DE 1239416B DE 1960S0068229 DE1960S0068229 DE 1960S0068229 DE S0068229 A DES0068229 A DE S0068229A DE 1239416 B DE1239416 B DE 1239416B
Authority
DE
Germany
Prior art keywords
water heater
instantaneous water
heating resistor
ceramic heating
electric instantaneous
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.)
Pending
Application number
DE1960S0068229
Other languages
German (de)
Inventor
Dipl-Ing Hermann Gerds
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.)
SEG Hausgeraete GmbH
Original Assignee
Siemens Elektrogaerate 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 Siemens Elektrogaerate GmbH filed Critical Siemens Elektrogaerate GmbH
Priority to DE1960S0068229 priority Critical patent/DE1239416B/en
Publication of DE1239416B publication Critical patent/DE1239416B/en
Pending 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
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds
    • 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
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)

Description

Elektrischer Durchlauferhitzer mit Heizwiderstand aus Keramik Die Erfindung, welche sich auf einen elektrischen Durchlauferhitzer mit Temperaturbegrenzung bezieht, dessen Heizkörper als zumindest teilweise vom Wasser durchströmtes leitendes Keramikrohr ausgebildet ist, geht von der Aufgabe aus, die Temperaturbegrenzung in besonders einfacher Weise durchzubilden. Gerade für Durchlauferhitzer ist die Temperaturbegrenzung zur Vermeidung einer überhitzung der Flüssigkeit von besonderer Bedeutung.Electric water heater with ceramic heating resistor Die Invention, which is based on an electric water heater with temperature limitation refers, the radiator as at least partially flowed through by water conductive Ceramic tube is formed, is based on the task of limiting the temperature to be trained in a particularly simple manner. This is especially true for instantaneous water heaters Temperature limitation to avoid overheating of the liquid in particular Meaning.

Es sind keramische Widerstandskörper bekannt, deren elektrischer Widerstandswert in einem bestimmten, von ihrer Zusammensetzung abhängigen Temperaturbereich mit steigender Temperatur sehr stark, nahezu sprunghaft, zunimmt, z. B. um etwa eine Zelinerpotenz bei etwa 20' C Temperaturanstiein einem bestimmten Temperaturbereich. Dies wird durch die Zeichnung erläutert, welche die beispielsweise Abhängigkeit des Widerstandswertes Q eines Kaltleiters von #er Temperatur t darstellt.Ceramic resistance bodies are known whose electrical resistance value increases very sharply, almost abruptly, in a certain temperature range, which is dependent on their composition, with increasing temperature, e.g. By about one zeliner power at about 20 ° C temperature rise in a certain temperature range. This is explained by the drawing, which shows the dependence of the resistance value Q of a PTC thermistor on the temperature t, for example.

Die Erfindung benutzt diese Eigenschaften der bekannten Widerstandsmaterialien zur Lösung der genannten Aufgabe dadurch, daß bei einem Durchlauferhitzer der erwähnten Art der Heizkörper mindestens teilweise aus an sich bekanntem Kaltleitermaterial besteht.The invention makes use of these properties of the known resistor materials to solve the stated problem in that in a water heater the mentioned Type of radiator at least partially made of known PTC thermistor material consists.

Es wird dadurch für Durchlauferhitzer eine Temperaturbegrenzung erzielt, die sich durch besondere Einfachheit und geringen Aufwand auszeichnet und die keinen zusätzlichen Raum benötigt. Darüber hinaus aber ist es von besonderem Vorteil, daß die durch die Erfindung erzielte Temperaturbegrenzung in ihrer Funktion unabhängig von mechanisch bewegten Teilen ist und daß sie somit ein besonders hohes Maß an Zuverlässigkeit aufweist.This achieves a temperature limit for instantaneous water heaters, which is characterized by particular simplicity and little effort and which does not additional space required. In addition, however, it is of particular advantage that the temperature limit achieved by the invention is independent in its function of mechanically moving parts and that they therefore have a particularly high level of Has reliability.

Damit der Heizkörper aus Kaltleitermaterial seine zusätzliche Aufgabe als Temperaturbegrenzer besonders wirkungsvoll erfüllen kann, ist es vorteilhaft, daß der Heizkörper mit einer isolierenden und wärmebeständiaen Oberfläche versehen ist. Mit einer derartigen Oberfläche, die beispielsweise durch einen glasurartigen überzug erzielt sein kann, wird erreicht, daß auch die äußeren Schichten des aus Kaltleitermaterial erstellten Heizkörpers durch Verhinderung einer starken Wärmeabstrahlung bei überhitzungen den Temperaturbereich schnell erreichen, der für die fast sprungartige Widerstandserhöhung des Heiz-C körpers notwendig ist.So that the radiator made of PTC thermistor material does its additional job can be particularly effective as a temperature limiter, it is advantageous to that the radiator is provided with an insulating and heat-resistant surface is. With such a surface, for example by a glaze-like coating can be achieved, it is achieved that the outer layers of the PTC thermistor material created radiators by preventing strong heat radiation in the event of overheating, quickly reach the temperature range required for the almost sudden Increasing the resistance of the heating element is necessary.

Claims (3)

Patentansprüche: 1. Elektrischer Durchlauferhitzer mit Temperaturbegrenzung, dessen Heizkörper als zumindest teilweise vom Wasser durchströmtes leitendes Keramikrohr ausgebildet ist. d a d u r c h g e - kennzeichnet, daß der Heizkörper mindestens teilweise aus an sich bekanntem Kaltleitermaterial besteht. Claims: 1. Electric instantaneous water heater with temperature limitation, the heating element of which is designed as a conductive ceramic tube through which water flows at least partially . d a d through g e - indicates that the heating element consists at least partially of a PTC thermistor material known per se. 2. Elektrischer Durchlauferhitzer nach Anspruch 1, dadurch gekennzeichnet, daß der Heizkörper mit einer isolierenden und wärmebeständigen Oberfläche versehen ist. 3. Elektrischer Durchlauferhitzer nach Anspruch 2, dadurch gekennzeichnet, daß die Ober- fläche- durch einen glasurartigen überzug erzielt ist. 2. Electrical water heater according to claim 1, characterized in that the radiator is provided with an insulating and heat-resistant surface. 3. Electrical water heater according to claim 2, characterized in that the surface is achieved by a glaze-like coating. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 270 721; schweizerische Patentschriften Nr. 318 037, 319001. Documents considered: German Patent No. 270 721; Swiss patents No. 318 037, 319001.
DE1960S0068229 1960-04-26 1960-04-26 Electric instantaneous water heater with ceramic heating resistor Pending DE1239416B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1960S0068229 DE1239416B (en) 1960-04-26 1960-04-26 Electric instantaneous water heater with ceramic heating resistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1960S0068229 DE1239416B (en) 1960-04-26 1960-04-26 Electric instantaneous water heater with ceramic heating resistor

Publications (1)

Publication Number Publication Date
DE1239416B true DE1239416B (en) 1967-04-27

Family

ID=7500132

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1960S0068229 Pending DE1239416B (en) 1960-04-26 1960-04-26 Electric instantaneous water heater with ceramic heating resistor

Country Status (1)

Country Link
DE (1) DE1239416B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625515A1 (en) * 1975-11-07 1977-05-18 Murata Manufacturing Co HEATING DEVICE FOR GASES OR LIQUIDS
FR2404985A1 (en) * 1977-09-29 1979-04-27 Siemens Ag Domestic appliance electrical plate heating element - produces heat power greater than 50 watts per square centimetre and is of PTC material
DE3213619A1 (en) * 1981-04-10 1982-10-28 Murata Manufacturing Co., Ltd., Nagaokakyo, Kyoto FLUID HEATING DEVICE
DE3246775A1 (en) * 1982-12-17 1984-07-12 Robert 7990 Friedrichshafen Kolb jun. Heating apparatus which can be heated electrically
WO1994023549A2 (en) * 1993-03-29 1994-10-13 Ing. Biro Establishment Electrical heater
WO1995002952A1 (en) * 1993-07-12 1995-01-26 Dusko Maravic Electric heating unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE270721C (en) *
CH318037A (en) * 1951-05-23 1956-12-15 Philips Nv Electrical resistance body and process for its manufacture
CH319001A (en) * 1951-05-23 1957-01-31 Philips Nv Electrical resistance body and process for its manufacture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE270721C (en) *
CH318037A (en) * 1951-05-23 1956-12-15 Philips Nv Electrical resistance body and process for its manufacture
CH319001A (en) * 1951-05-23 1957-01-31 Philips Nv Electrical resistance body and process for its manufacture

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625515A1 (en) * 1975-11-07 1977-05-18 Murata Manufacturing Co HEATING DEVICE FOR GASES OR LIQUIDS
FR2404985A1 (en) * 1977-09-29 1979-04-27 Siemens Ag Domestic appliance electrical plate heating element - produces heat power greater than 50 watts per square centimetre and is of PTC material
DE3213619A1 (en) * 1981-04-10 1982-10-28 Murata Manufacturing Co., Ltd., Nagaokakyo, Kyoto FLUID HEATING DEVICE
DE3246775A1 (en) * 1982-12-17 1984-07-12 Robert 7990 Friedrichshafen Kolb jun. Heating apparatus which can be heated electrically
WO1994023549A2 (en) * 1993-03-29 1994-10-13 Ing. Biro Establishment Electrical heater
WO1994023549A3 (en) * 1993-03-29 1994-12-08 Biro Establishment Electrical heater
WO1995002952A1 (en) * 1993-07-12 1995-01-26 Dusko Maravic Electric heating unit

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