WO2015096868A1 - Dispositif capacitif de détection destiné à être utilisé dans un cuiseur à induction et cuiseur à induction comprenant celui-ci - Google Patents

Dispositif capacitif de détection destiné à être utilisé dans un cuiseur à induction et cuiseur à induction comprenant celui-ci Download PDF

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Publication number
WO2015096868A1
WO2015096868A1 PCT/EP2013/078008 EP2013078008W WO2015096868A1 WO 2015096868 A1 WO2015096868 A1 WO 2015096868A1 EP 2013078008 W EP2013078008 W EP 2013078008W WO 2015096868 A1 WO2015096868 A1 WO 2015096868A1
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WO
WIPO (PCT)
Prior art keywords
capacitive sensing
induction
buttons
straight
primary
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.)
Ceased
Application number
PCT/EP2013/078008
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English (en)
Inventor
Selcuk SOYYIGIT
Serdar Gokhan DOGANAY
Ugur Camli
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.)
Arcelik AS
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Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Priority to PCT/EP2013/078008 priority Critical patent/WO2015096868A1/fr
Publication of WO2015096868A1 publication Critical patent/WO2015096868A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/083—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on tops, hot plates
    • 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
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • 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
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them

Definitions

  • the present invention relates to a capacitive sensing device for use in an induction cooker.
  • the present invention more particularly relates to a capacitive sensing device which allows combined operation of induction coils.
  • a conventional induction cooker has typically three or four induction coils each configuring a separate cooking zone.
  • the induction coils of a conventional induction cooker usually have circular shapes which match the widespreadly used cylindrical-shaped conventional cooking receptacles.
  • one of the induction coils typically has a relatively larger diameter to heat correspondingly large size cooking receptacles.
  • the conventional induction cooker When operating the induction cooker, the user puts the receptacle on the cooking zone which best matches the size of the receptacle and subsequently selects the respective induction coil and adjusts the power level of heating.
  • the conventional induction cooker usually includes capacitive sensing buttons. Capacitive sensing buttons are carefree in comparison to mechanical buttons.
  • the capacitive sensing buttons are monitored by a capacitive sensing device which has a user interface.
  • the user interface includes a display and different groups of capacitive sensing buttons which are respectively for selecting an induction coil, and adjusting the power level of heating of an induction coil.
  • a problem with the above-mentioned conventional induction cooker is that it cannot uniformly heat a receptacle which has an extraordinary size and shape, such as a rectangular shape or an oblong shape.
  • Several techniques have been developed to inductively heat receptacles with extraordinary sizes and shapes.
  • a commonly known technique is to operate two of the indication coils in combination to attain an enlarged cooking zone which uniformly heats the large size receptacle.
  • JP 2009-218040 discloses a conventional induction cooking device.
  • This induction cooking device comprises a plurality of induction coils with circular shapes and an operation portion which has a plurality of buttons for selecting an induction coil either separately or in combination with another induction coil.
  • the operation portion also includes buttons for adjusting a power level of heating for the induction coils selected.
  • a drawback of the aforementioned induction cooking device is that for each combination of induction coils, a different capacitive sensing button is required. Consequently, the number of capacitive sensing buttons eventually increases. Hence, the control portion becomes sophisticated and less user-friendly.
  • TFT LCD touchscreen monitors can be used. However, this incurs additional costs.
  • An objective of the present invention is to provide a capacitive sensing device for use in an induction cooker which overcomes the aforementioned drawbacks of the prior art and which has an improved usability.
  • primary capacitive sensing buttons each for selecting an indication coil are arranged such that a width of an area between sensing areas of two immediately neighboring primary capacitive sensing buttons is less than a width of an average adult’s finger.
  • a capacitive sensing controller for monitoring the primary capacitive sensing buttons is configured to enable if a user’s finger simultaneously touches the sensing areas of two immediately neighboring primary capacitive sensing buttons adjusting through secondary capacitive sensing buttons a common power level of heating for the corresponding two neighboring induction coils being simultaneously selected by the user, and to output to the induction cooker a signal indicative of the induction coils simultaneously selected by the user and the common power level of heating adjusted by the user.
  • the user can combine e.g. two neighboring induction coils by touching an area between the corresponding primary capacitive sensing buttons. After the induction coils are selected, a common power level of heating is adjusted. Hence, the need for additional primary capacitive sensing buttons for selecting specific coil combinations is obviated.
  • the capacitive sensing device has eight primary capacitive sensing buttons which are arranged along two straight arrays. In this embodiment, each array has four primary capacitive sensing buttons.
  • the induction cooker comprises eight induction coils which are arranged in two straight arrays each including four induction coils.
  • the two arrays respectively configure a left side and right side of a cooking zone of the induction cooker.
  • a capacitive sensing device which enables combined operation of induction coils of an induction cooker without increasing the number of primary capacitive sensing buttons.
  • a user-friendly user interface has been attained.
  • the usability of the capacitive sensing device and the induction cooker has been both increased.
  • a reduction in overall costs has been achieved.
  • Figure 1 – is a schematic perspective partial view of a capacitive sensing device according to an embodiment of the present invention
  • Figure 2 – is a schematic perspective partial view of an induction cooker which has a capacitive sensing device according to an embodiment of the present invention
  • Figure 3 – is a schematic enlarged partial top view of the induction cooker shown in Fig. 2.
  • the capacitive sensing device (1) is suitable for use in an induction cooker (2) (Figs. 1 to 3).
  • the capacitive sensing device (1) comprises primary capacitive sensing buttons (3) each for selecting a corresponding induction coil (4), wherein each primary capacitive sensing button (3) has a sensing area (5) with a predetermined width which is equal to a width of an average adult user’s finger, secondary capacitive sensing buttons (6) for adjusting a power level of heating for an induction coil (4) being selected and
  • a capacitive sensing controller (not shown) configured to monitor the primary capacitive sensing buttons (3) and secondary capacitive sensing buttons (6), and to output a signal to the induction cooker (2) indicative of the induction coils (4) selected by the user and the power level of heating adjusted by the user (Figs. 1 to 3).
  • the primary capacitive sensing buttons (3) are arranged such that a width of an area between the sensing areas (5) of two immediately neighboring primary capacitive sensing buttons (3) is less than said predetermined width i.e., less than a width of an average adult user’s finger (Figs. 1 to3).
  • the capacitive sensing controller of the present invention is further configured to enable if a user’s finger simultaneously touches the sensing areas (5) of two immediately neighboring primary capacitive sensing buttons (3) adjusting a common power level of heating for the corresponding two neighboring induction coils (4) being simultaneously selected by the user, and to output to the induction cooker (2) a signal indicative of the induction coils (4) simultaneously selected by the user and the common power level of heating adjusted by the user (Figs. 1 to 3).
  • Each of the primary capacitive sensing buttons (3) is configured by a capacitor (not shown).
  • the capacitive sensing controller is configured to monitor the changes in the capacitance of the capacitors.
  • the capacitive sensing controller detects a change in the capacitance, and judges that the user has selected the corresponding induction coil (4) to be activated for inductive cooking.
  • the user is allowed to adjust through the secondary capacitive sensing buttons (6) a power level of heating for the selected induction coil (4).
  • the capacitive sensing controller outputs to the induction cooker (2) a signal indicative of the selected induction coil (4) and the adjusted power level of heating.
  • a control unit (10) of the induction cooker (2) drives the induction coil (4) in accordance with the output settings i.e., the induction coils (4) being selected and the power level of heating.
  • the same procedure applies to any of the induction coils (4).
  • the capacitive sensing controller detects a change in the capacitance of both capacitors of these two neighboring primary capacitive sensing buttons (3).
  • the capacitive sensing controller judges that the user has selected these two neighboring inductions coils (4) for combined operation.
  • the user is allowed to adjust through the secondary capacitive sensing buttons (6) a common power level of heating for the simultaneously selected induction coils (4).
  • the capacitive sensing controller outputs to the induction cooker (2) a signal indicative of the selected induction coils (4) and the adjusted common power level of heating.
  • the control unit (10) of the induction cooker (2) drives the combined induction coils (4) in accordance with the output settings. The same procedure applies to any of the simultaneously selected immediately neighboring induction coils (4) (Figs. 1 to 3).
  • the capacitive sensing device (1) further comprises a display unit (7) which includes one or more than one display (8) for visually informing the user about the induction coils (4) as singly and/or simultaneously being selected by the user and the power level of heating adjusted by the user (Figs. 1 to 3). Thereby, the user is informed on the operational state of each induction coil (4).
  • the primary capacitive sensing buttons (3) are arranged along one or more than one straight array (R1).
  • each straight array (R1) has a plurality of primary capacitive sensing buttons (3) (Figs. 1 to 3).
  • the capacitive sensing device (1) has eight primary capacitive sensing buttons (3) which are arranged along two straight arrays (R1).
  • each array (R1) has a four primary capacitive sensing buttons (3) (Figs. 1 to 3).
  • the secondary capacitive sensing buttons (5) are arranged along a curved array (R2) (Figs. 1 and 2).
  • the primary capacitive sensing button (3) has a rectangular-shaped capacitor (not shown). In an alternative embodiment, the primary capacitive sensing button (3) has a circular-shaped capacitor.
  • a user interface of the capacitive sensing device (1) is configured by a printed circuit board (PCB) which has a plurality of said capacitors and a non-conductive overlay which covers the capacitors. The width of the capacitor pads are designed in accordance with the desired sensing area (5). The capacitor pads are separated by a distance in accordance the specific arrangement.
  • PCB printed circuit board
  • the induction cooker (2) comprises induction coils (4) each for inductively heating a cooking receptacle, wherein the induction coils (4) are arranged in a cooking zone (9) and along one or more than one straight array (R3).
  • Each straight array (R3) has a plurality of induction coils (4) (Fig. 2).
  • the induction cooker (2) comprises a capacitive sensing device (1) and a control unit (10) for operating one or more than one induction coil (4) based on the signal being output by the capacitive sensing device (1) (Figs. 2 and 3).
  • the primary capacitive sensing buttons (3) and the corresponding induction coils (4) are arranged in a same sequence. Thereby, for example the third and fourth primary capacitive sensing buttons (3) can be simultaneously touched by placing the finger between these two in order to select the third and fourth induction coils (4) for combined operation. This also applies to the other consecutively arranged primary capacitive sensing buttons (3) of an array (R1).
  • control unit (10) is further configured to operate the selected induction coils (4) singly and/or in combination in accordance with the power level of heating adjusted by the user (Figs. 2 and 3).
  • the straight arrays (R3) of induction coils (4) are parallel (Fig. 2).
  • the induction cooker (2) comprises two straight arrays (R3) of induction coils (4) (Fig. 2).
  • each straight array (R3) includes four induction coils (4).
  • the induction cooker (2) comprises two straight arrays (R1) of primary capacitive sensing buttons (3) (Figs. 1 and 2).
  • each straight array (R1) includes four primary capacitive sensing buttons (3) (Fig. 2).
  • one of the straight arrays (R3) of inductions coils (4) configures a left half of the cooking zone (9), and the other straight array (R3) of induction coils (4) configures a right half of the cooking zone (9) (Fig. 2).
  • one of the straight arrays (R1) of primary capacitive sensing buttons (3) is arranged in a vicinity of a left hand side of the cooking zone (9), and the other straight array (R1) of primary capacitive sensing buttons (3) is arranged in a vicinity of a right hand side of the cooking zone (9) (Figs. 2 and 3).
  • both of the straight arrays (R3) of inductions coils (4) are vertically aligned with respect to a front side (11) of the cooking zone (9) (Fig. 2).
  • both straight arrays (R1) of primary capacitive sensing buttons are aligned parallel with respect to the front side (11) of the cooking zone (9) (Figs. 1 to 3).
  • the secondary capacitive sensing buttons (5) are arranged along a curved array (R2) which is centered to a front side (11) of the cooking zone (9) (Fig. 2).
  • each induction coil (4) has an oblong shape (Fig. 2).
  • the present invention is not limited to a specific shape of an induction coil (4).
  • circular shaped, rectangular shaped, or specifically square shaped induction coils (4) can be utilized.
  • a capacitive sensing device which enables combined operation of induction coils (4) of an induction cooker (2) without increasing the number of primary capacitive sensing buttons (3).
  • UI user interface
  • the usability of the capacitive sensing device and the induction cooker (2) has been both increased.
  • a reduction in overall costs has been achieved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)

Abstract

La présente invention concerne un dispositif capacitif de détection (1) destiné à être utilisé dans un cuiseur à induction (2), comprenant des boutons capacitifs primaires de détection (3) chacun destiné à sélectionner une bobine d'induction correspondante (4), chaque bouton capacitif primaire de détection (3) présentant une zone de détection (5) ayant une largeur d'un doigt d'utilisateur adulte moyen, des boutons capacitifs secondaires de détection (6) destinés à régler un niveau de puissance de chauffage d'une bobine d'induction (4) sélectionnée et un régulateur capacitif de détection destiné à surveiller les boutons capacitifs primaires de détection (3) et les boutons capacitifs secondaires de détection (6).
PCT/EP2013/078008 2013-12-26 2013-12-26 Dispositif capacitif de détection destiné à être utilisé dans un cuiseur à induction et cuiseur à induction comprenant celui-ci Ceased WO2015096868A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/078008 WO2015096868A1 (fr) 2013-12-26 2013-12-26 Dispositif capacitif de détection destiné à être utilisé dans un cuiseur à induction et cuiseur à induction comprenant celui-ci

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/078008 WO2015096868A1 (fr) 2013-12-26 2013-12-26 Dispositif capacitif de détection destiné à être utilisé dans un cuiseur à induction et cuiseur à induction comprenant celui-ci

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WO2015096868A1 true WO2015096868A1 (fr) 2015-07-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017093173A1 (fr) * 2015-12-01 2017-06-08 Arcelik Anonim Sirketi Unité de bobine d'induction
EP3599793A1 (fr) * 2018-07-27 2020-01-29 Electrolux Appliances Aktiebolag Plaque de cuisson à induction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040256378A1 (en) * 2003-04-10 2004-12-23 Electroulx Home Products, Inc. Electric cooking range having multiple-zone power control system and wipe resistant control panel
EP1921385A2 (fr) * 2006-11-10 2008-05-14 Electrolux Home Products, Inc. Interface configurable par l'utilisateur pour système de cuisson
US20100007531A1 (en) * 2008-07-08 2010-01-14 E.G.O. Elektro-Geraetebau Gmbh Control mechanism for an electrical appliance and evaluation method for the control mechanism
EP2187132A2 (fr) * 2008-11-15 2010-05-19 Electrolux Home Products N.V. Panneau de commande pour contrôler plusieurs fonctions différentes d'un appareil
US8519291B2 (en) * 2009-10-07 2013-08-27 E.G.O. Elektro-Geraetebau Gmbh Control device for an electrical appliance

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040256378A1 (en) * 2003-04-10 2004-12-23 Electroulx Home Products, Inc. Electric cooking range having multiple-zone power control system and wipe resistant control panel
EP1921385A2 (fr) * 2006-11-10 2008-05-14 Electrolux Home Products, Inc. Interface configurable par l'utilisateur pour système de cuisson
US20100007531A1 (en) * 2008-07-08 2010-01-14 E.G.O. Elektro-Geraetebau Gmbh Control mechanism for an electrical appliance and evaluation method for the control mechanism
EP2187132A2 (fr) * 2008-11-15 2010-05-19 Electrolux Home Products N.V. Panneau de commande pour contrôler plusieurs fonctions différentes d'un appareil
US8519291B2 (en) * 2009-10-07 2013-08-27 E.G.O. Elektro-Geraetebau Gmbh Control device for an electrical appliance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017093173A1 (fr) * 2015-12-01 2017-06-08 Arcelik Anonim Sirketi Unité de bobine d'induction
EP3599793A1 (fr) * 2018-07-27 2020-01-29 Electrolux Appliances Aktiebolag Plaque de cuisson à induction
WO2020020767A1 (fr) * 2018-07-27 2020-01-30 Electrolux Appliances Aktiebolag Plaque de cuisson à induction

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