EP1017255A1 - Anbauanordnung eines Sensors bei einem Kochfeld - Google Patents

Anbauanordnung eines Sensors bei einem Kochfeld Download PDF

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Publication number
EP1017255A1
EP1017255A1 EP99403324A EP99403324A EP1017255A1 EP 1017255 A1 EP1017255 A1 EP 1017255A1 EP 99403324 A EP99403324 A EP 99403324A EP 99403324 A EP99403324 A EP 99403324A EP 1017255 A1 EP1017255 A1 EP 1017255A1
Authority
EP
European Patent Office
Prior art keywords
hearth
cooking
plate
sensor
temperature
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
EP99403324A
Other languages
English (en)
French (fr)
Other versions
EP1017255B1 (de
Inventor
René Thomson-CSF Prop. Intel. Cornec
Serge Thomson-CSF Prop. Intel. Boyer
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.)
Brandt Cooking SAC
Original Assignee
Brandt Cooking SAC
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 Brandt Cooking SAC filed Critical Brandt Cooking SAC
Publication of EP1017255A1 publication Critical patent/EP1017255A1/de
Application granted granted Critical
Publication of EP1017255B1 publication Critical patent/EP1017255B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/07—Heating plates with temperature control means

Definitions

  • the invention relates to mounting a sensor in a table Cooking
  • Temperature measurement utensil can for example be used to control the power of heater delivered by the fireplace to the kitchen utensil.
  • a sensor in a hob. temperature above a cooking hearth.
  • the assembly is done by example, either through or below a hearth plate covering the foyer.
  • the hearth is circular and the temperature sensor is located substantially above the center of the hearth.
  • the sensor is connected to means for processing the temperature measurement by a link by electrical example.
  • This connection crosses the hearth substantially in its center. The fact of crossing the hearth causes a difficulty in mounting the Cooktop. When the fireplace is placed at the bottom of the table cooking and you want to place the hearth plate with its sensor above of the hearth, the mounting of the connection through the hearth is hindered by the hearth plate which masks the hearth.
  • the subject of the invention is a hob comprising a hearth plate, a cooking hearth located under the hearth plate, the hearth plate being intended to support a kitchen utensil heated by the cooking stove, a sensor fixed to the hearth plate, a connection between the sensor and means treatment, characterized in that the connection is arranged between the focal point of and the hearth plate, and extends beyond the cooking zone.
  • the invention is advantageously implemented with a induction. Indeed, this type of hearth directly heats the cookware kitchen placed on the hearth plate, without heating the connection between the collector and the means of treatment. Other types of households would require a bond resistant to higher temperature, which would increase the cost of production from the hob.
  • the hob shown in Figure 1 has a plate hearth 1 and a cooking hearth 2 located under the hearth plate 1.
  • the hearth of firing 2 is substantially circular with axis 3.
  • Axis 3 is substantially perpendicular to the hearth plate 1.
  • the cooking hearth 2 has substantially the shaped like a flat washer. It is understood that other forms of focus cooking 2 are possible to implement the invention.
  • the home of cooking 2 has a hole 4 substantially on axis 3.
  • Certain materials used to make the hearth plate 1, such as for example glass ceramics are not good high electrical insulators temperature. It is therefore necessary to electrically isolate the hearth from cooking 2 of the hearth plate 1. Air can be used to achieve this insulation but advantageously there is between the cooking hearth 2 and the hearth plate 1 an electrical insulator 5.
  • the electrical insulator 5 covers substantially the hearth 2.
  • the hob also includes a sensor temperature sensor 6.
  • the temperature sensor 6 is intended to measure the temperature of a kitchen utensil placed on the hearth plate 1, above of the cooking hearth 2.
  • the temperature sensor 6 is substantially located on the axis 3.
  • the temperature sensor 6 has a fixed part 7 fixed to the hearth plate 1.
  • the temperature sensor 6 also includes a part movable 8 along the axis 3.
  • a spring 9 keeps the movable part 8 at a distance of the fixed part 7. In the absence of kitchen utensil, the distance between the mobile part 8 and the fixed part 7 is such that the mobile part 8 is located above the upper face 10 of the hearth plate 1.
  • the temperature sensor 6 also includes a component 11 for measuring the temperature.
  • Component 11 is for example a coefficient resistance positive or negative temperature.
  • Component 11 can also be produced at using a thermocouple.
  • Component 11 must be fixed as close as possible to the sensitive zone 8.
  • the hob has processing means 12.
  • the temperature sensor 6 is connected to the processing means 12 by a link 13.
  • the link 13 is arranged between the cooking hearth 2 and the plate hearth 1, and extends beyond the cooking hearth 2.
  • the link 13 is arranged above the electrical insulator 5.
  • Positioning of the connection 13 above the insulation electrical 5 reduces the electrical insulation of the connection 13 by in relation to its environment. This is an advantage over known embodiments which require electrical insulation of the connection 13 with respect to cooking hearth 2 when this crosses the cooking hearth cooking 2.
  • the processing means 12 can also supply the cooking stove 2 in energy.
  • the processing means 12 are then connected to a power supply 14 outside the hob.
  • the means of treatment 12 can for example enslave the supply of the household cooking 2 as a function of the temperature measured by the temperature 6.
  • the hob shown in Figure 2 has the plate hearth 1, the cooking hearth 2, the electrical insulation 5, the temperature 6 and the processing means 12, all arranged as at figure 1. Unlike figure 1 the temperature sensor 6 does not has no moving part.
  • the temperature sensor 6 has a sensitive zone 20 maintained in a fixed position on the hearth plate 1.
  • the zone sensitive 20 is for example made by means of a metal pad immobilized against the upper face 21 of the hearth plate 1.
  • the plate hearth 1 has a hole 22 containing the component 11.
  • the hole 22 is sealed in the sensitive area 20.
  • the temperature sensor 6 can also be embedded in the hearth plate, when the latter is produced for example by molding.
  • the sensitive zone 20 can also have any other shape such as for example the shape of a ball.
  • the sensitive area 20 can be located slightly above or below the top 21 of the hearth plate 1.
  • the variant shown in FIG. 2 presents the advantage of not having a moving part. Indeed, moving parts of this type of assembly make it complicated to perform and the temperature high to which it is subjected can cause seizure phenomena, preventing it from functioning properly. In addition, this type of mounting is not not waterproof and difficult to clean.
  • the component 11 is advantageously a thermocouple.
  • the thermocouple has a lower impedance than the resistors temperature coefficient. So the signal from component 11 risks less disturbed by the magnetic field delivered by the focus of cooking 2.
  • the hearth is advantageously a induction fireplace. Indeed, the cooking hearth 2 directly heats a kitchen utensil placed on the hearth plate 1 without heating the connection 13. Other types of outbreaks would require a high-resistance bond 13 temperature ; which would increase the cost of making the table cooking.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Stoves And Ranges (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Cookers (AREA)
  • Induction Heating Cooking Devices (AREA)
EP19990403324 1998-12-30 1999-12-30 Kochfeld mit einem Sensor Expired - Lifetime EP1017255B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9816657 1998-12-30
FR9816657A FR2788114B1 (fr) 1998-12-30 1998-12-30 Montage d'un capteur dans une table de cuisson

Publications (2)

Publication Number Publication Date
EP1017255A1 true EP1017255A1 (de) 2000-07-05
EP1017255B1 EP1017255B1 (de) 2003-03-12

Family

ID=9534699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990403324 Expired - Lifetime EP1017255B1 (de) 1998-12-30 1999-12-30 Kochfeld mit einem Sensor

Country Status (3)

Country Link
EP (1) EP1017255B1 (de)
DE (1) DE69905850D1 (de)
FR (1) FR2788114B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1882128A1 (de) * 2005-05-20 2008-01-30 LG Electronics Inc. Elektroherd
WO2013134239A1 (en) * 2012-03-06 2013-09-12 Meyer Intellectual Properties Ltd. Method and apparatus for temperature measurement during induction cooking
GB2552531A (en) * 2016-07-28 2018-01-31 Richards Morphy N I Ltd Temperature sensor in induction cooker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5430427A (en) * 1993-01-22 1995-07-04 Therm-O-Disc, Incorporated NTC sensor rod for glass cooktops
FR2728060A1 (fr) * 1994-12-09 1996-06-14 Seb Sa Dispositif pour chauffer par induction un recipient de cuisson
US5603858A (en) * 1995-06-02 1997-02-18 Aladdin Synergetics, Inc. Heat retentive server for induction heating
WO1998028945A1 (en) * 1996-12-20 1998-07-02 Taco Bell Corp. Domed induction oven

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5430427A (en) * 1993-01-22 1995-07-04 Therm-O-Disc, Incorporated NTC sensor rod for glass cooktops
FR2728060A1 (fr) * 1994-12-09 1996-06-14 Seb Sa Dispositif pour chauffer par induction un recipient de cuisson
US5603858A (en) * 1995-06-02 1997-02-18 Aladdin Synergetics, Inc. Heat retentive server for induction heating
WO1998028945A1 (en) * 1996-12-20 1998-07-02 Taco Bell Corp. Domed induction oven

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1882128A1 (de) * 2005-05-20 2008-01-30 LG Electronics Inc. Elektroherd
EP1882128A4 (de) * 2005-05-20 2012-06-20 Lg Electronics Inc Elektroherd
WO2013134239A1 (en) * 2012-03-06 2013-09-12 Meyer Intellectual Properties Ltd. Method and apparatus for temperature measurement during induction cooking
GB2552531A (en) * 2016-07-28 2018-01-31 Richards Morphy N I Ltd Temperature sensor in induction cooker
GB2552531B (en) * 2016-07-28 2019-10-23 Richards Morphy N I Ltd Temperature sensor in induction cooker

Also Published As

Publication number Publication date
FR2788114B1 (fr) 2001-03-23
FR2788114A1 (fr) 2000-07-07
EP1017255B1 (de) 2003-03-12
DE69905850D1 (de) 2003-04-17

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