FR2404985A1 - Domestic appliance electrical plate heating element - produces heat power greater than 50 watts per square centimetre and is of PTC material - Google Patents

Domestic appliance electrical plate heating element - produces heat power greater than 50 watts per square centimetre and is of PTC material

Info

Publication number
FR2404985A1
FR2404985A1 FR7826551A FR7826551A FR2404985A1 FR 2404985 A1 FR2404985 A1 FR 2404985A1 FR 7826551 A FR7826551 A FR 7826551A FR 7826551 A FR7826551 A FR 7826551A FR 2404985 A1 FR2404985 A1 FR 2404985A1
Authority
FR
France
Prior art keywords
heating element
heat power
per square
domestic appliance
watts per
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
FR7826551A
Other languages
French (fr)
Other versions
FR2404985B1 (en
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Publication of FR2404985A1 publication Critical patent/FR2404985A1/en
Application granted granted Critical
Publication of FR2404985B1 publication Critical patent/FR2404985B1/fr
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
    • H05B3/10—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
    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/121—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using electric energy supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

The heater has a plate-like P.T.C. resistance heating element (2) providing equal heat discharge from both sides of the plate. The plate has a thickness in the range 0.5 to 2 mm and the P.T.C. material has a resistivity at its curie temperature and at an electric field strength of 2000 v/cm in the range 103 to 6 x 103 ohms. cm. The arrangement allows the element to emit more than 50 watts/cm2 heat power. The curie temperature is at least 50 deg. K greater than max operational temperature. The element is covered by thermally conductive electrically insulating layers (212, 222) and fits in a recess closed by a metal push or screw fit plug (11). The heater may be used domestic equipment e.g. egg boiler, coffee percolator.
FR7826551A 1977-09-29 1978-09-15 Domestic appliance electrical plate heating element - produces heat power greater than 50 watts per square centimetre and is of PTC material Granted FR2404985A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19777730201U DE7730201U1 (en) 1977-09-29 1977-09-29 HEATING DEVICE FOR FLOW HEATERS

Publications (2)

Publication Number Publication Date
FR2404985A1 true FR2404985A1 (en) 1979-04-27
FR2404985B1 FR2404985B1 (en) 1981-10-16

Family

ID=6683111

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7826551A Granted FR2404985A1 (en) 1977-09-29 1978-09-15 Domestic appliance electrical plate heating element - produces heat power greater than 50 watts per square centimetre and is of PTC material

Country Status (4)

Country Link
AT (1) AT375170B (en)
DE (1) DE7730201U1 (en)
FR (1) FR2404985A1 (en)
IT (1) IT1099155B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2634090A1 (en) * 1988-07-07 1990-01-12 Diry Andre Device for heating up a flow of liquid, especially water or diesel fuel
EP0464955A1 (en) * 1990-07-03 1992-01-08 Texas Instruments Incorporated Air heating device and heating assembly
US5239163A (en) * 1991-06-19 1993-08-24 Texas Instruments Incorporated Automobile air heater utilizing PTC tablets adhesively fixed to tubular heat sinks
FR2689227A1 (en) * 1992-03-27 1993-10-01 Bucaille Joel Device for thermal regulation of a circulating fluid.
US5606641A (en) * 1992-03-27 1997-02-25 Bucaille; Joel Device for thermal regulation of a circulating fluid comprising a stacked corrugated plate heat exchanger with heat transfer and cooling paths and electrical heating element therebetween
WO2001097566A1 (en) * 2000-06-14 2001-12-20 Elias Russegger Electric heating device
FR2943296A1 (en) * 2009-03-19 2010-09-24 Valeo Systemes Dessuyage Cleaning liquid heating device for liquid projection element e.g. windscreen of motor vehicle, has heating unit extended in plane and heat contacting with flat metal sheet in parallel manner

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017057B1 (en) * 1979-03-27 1982-03-10 Danfoss A/S Fuel oil preheating device
US4346285A (en) * 1979-04-28 1982-08-24 Murata Manufacturing Co., Ltd. Heating device employing thermistor with positive coefficient characteristic
DE3021461A1 (en) * 1980-06-06 1981-12-24 Elpag Ag Chur, Chur HEAT EXCHANGE ELEMENT
DE4433814B4 (en) * 1994-09-22 2006-05-24 Behr Gmbh & Co. Kg motor vehicle
DE102013105270A1 (en) * 2013-05-23 2014-11-27 Borgwarner Beru Systems Gmbh Heater
DE102014225766B4 (en) * 2014-12-12 2020-06-18 Bernhard Schultes Heat exchanger

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH97583A (en) * 1921-07-02 1923-01-16 Huerlimann Jakob Apparatus for electrical heating of liquid flowing through.
DE1239416B (en) * 1960-04-26 1967-04-27 Siemens Electrogeraete Ges Mit Electric instantaneous water heater with ceramic heating resistor
FR1509654A (en) * 1967-01-30 1968-01-12 Matsushita Electric Ind Co Ltd Automatic electric coffee maker
US3400250A (en) * 1966-01-03 1968-09-03 Texas Instruments Inc Heating apparatus
FR2299839A1 (en) * 1975-02-04 1976-09-03 Moulinex Sa Coffee machine with cold water pump in column - has water reservoir, water heating plate and filter in cantilevered head on column

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH97583A (en) * 1921-07-02 1923-01-16 Huerlimann Jakob Apparatus for electrical heating of liquid flowing through.
DE1239416B (en) * 1960-04-26 1967-04-27 Siemens Electrogeraete Ges Mit Electric instantaneous water heater with ceramic heating resistor
US3400250A (en) * 1966-01-03 1968-09-03 Texas Instruments Inc Heating apparatus
FR1509654A (en) * 1967-01-30 1968-01-12 Matsushita Electric Ind Co Ltd Automatic electric coffee maker
FR2299839A1 (en) * 1975-02-04 1976-09-03 Moulinex Sa Coffee machine with cold water pump in column - has water reservoir, water heating plate and filter in cantilevered head on column

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2634090A1 (en) * 1988-07-07 1990-01-12 Diry Andre Device for heating up a flow of liquid, especially water or diesel fuel
EP0464955A1 (en) * 1990-07-03 1992-01-08 Texas Instruments Incorporated Air heating device and heating assembly
US5239163A (en) * 1991-06-19 1993-08-24 Texas Instruments Incorporated Automobile air heater utilizing PTC tablets adhesively fixed to tubular heat sinks
FR2689227A1 (en) * 1992-03-27 1993-10-01 Bucaille Joel Device for thermal regulation of a circulating fluid.
WO1993020389A1 (en) * 1992-03-27 1993-10-14 Bucaille Joel Heat control device for circulating fluid
US5606641A (en) * 1992-03-27 1997-02-25 Bucaille; Joel Device for thermal regulation of a circulating fluid comprising a stacked corrugated plate heat exchanger with heat transfer and cooling paths and electrical heating element therebetween
WO2001097566A1 (en) * 2000-06-14 2001-12-20 Elias Russegger Electric heating device
US7158718B2 (en) 2000-06-14 2007-01-02 Watlow Electric Manufacturing Company Electric heating device
FR2943296A1 (en) * 2009-03-19 2010-09-24 Valeo Systemes Dessuyage Cleaning liquid heating device for liquid projection element e.g. windscreen of motor vehicle, has heating unit extended in plane and heat contacting with flat metal sheet in parallel manner

Also Published As

Publication number Publication date
IT7828039A0 (en) 1978-09-25
FR2404985B1 (en) 1981-10-16
IT1099155B (en) 1985-09-18
ATA699178A (en) 1983-11-15
DE7730201U1 (en) 1979-03-08
AT375170B (en) 1984-07-10

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Legal Events

Date Code Title Description
ST Notification of lapse