EP0993233A2 - Inducteur destiné aux plaques à induction - Google Patents

Inducteur destiné aux plaques à induction Download PDF

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Publication number
EP0993233A2
EP0993233A2 EP99119127A EP99119127A EP0993233A2 EP 0993233 A2 EP0993233 A2 EP 0993233A2 EP 99119127 A EP99119127 A EP 99119127A EP 99119127 A EP99119127 A EP 99119127A EP 0993233 A2 EP0993233 A2 EP 0993233A2
Authority
EP
European Patent Office
Prior art keywords
inductor
substrate
coils
spiral
coil
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
EP99119127A
Other languages
German (de)
English (en)
Other versions
EP0993233B1 (fr
EP0993233A3 (fr
Inventor
Markus Theine
Jose-Ramon Garcia
Pablo Hernandez
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Balay SA
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 BSH Bosch und Siemens Hausgeraete GmbH, Balay SA filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP0993233A2 publication Critical patent/EP0993233A2/fr
Publication of EP0993233A3 publication Critical patent/EP0993233A3/fr
Application granted granted Critical
Publication of EP0993233B1 publication Critical patent/EP0993233B1/fr
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
    • H05B6/10—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
    • H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
    • H05B6/1281—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements with flat coils

Definitions

  • the present invention relates to an inductor for arrangement below a cooktop an induction hob with at least two inductor coils, one above the other are arranged at a distance.
  • Such an inductor is known from the publication WO 89/04109, the design and the arrangement of the inductor coils is such that each field point is outside the one to be heated Cooking area, which is covered by the placed pot, the field parts of the essentially cancel each other inductor coils. They are among themselves arranged inductor coils flow in opposite directions from the feeding current. Still is to shield the interfering field of the lower inductor coil between the two inductor coils a suitable ferrite element is arranged.
  • DE 196 04 436 A1 describes an inductor for installation under a trough plate known with an inductor coil, which is held on a plastic carrier part.
  • the Inductor coil is with thermal and / or electrical insulation and one of the Well plate electrically insulated temperature sensor for measuring a well plate temperature fitted.
  • the self-supporting inductor coil is made of fine wire strand as a spiral essentially wound on a support surface of the carrier part.
  • the object of the present invention is to provide an inductor with the lowest possible minimum height to provide.
  • the material of the substrate is advantageously an oxide ceramic, in particular aluminum oxide. This makes it an excellent insulator with good thermal conduction properties for provided the inductor. Due to this property, the self-heating of the Coil and by the external heat supplied, for example the pot or the glass ceramic, caused local heating of the inductor distributed faster. In addition, the heat released to the environment over a larger area. This is particularly due to the arrangement the conductor tracks of the inductor coil, which is characterized in that the flat conductor track with its large surface from the substrate or the neighboring turns is directed away. Only the small-area side surfaces of adjacent turns are arranged next to each other.
  • Oxide ceramics are also particularly suitable for applying flat conductor tracks.
  • the thickness of the substrate is only about 0.7 to 1 mm.
  • the inductor coil is an inductor spiral in particular with a coating technique, especially thick-film technology, on the Substrate applied.
  • a coating technique especially thick-film technology
  • the inductor coil with sufficient in a technically simple manner Conductor cross section realizable.
  • PCB etching techniques could also be used, for example or mechanically manufactured ribbon reels or other known manufacturing techniques become. Because of the local use of printing or etching techniques firm connection of the conductor track on the ceramic substrate with its small Thermal expansion coefficients are the performance differences of the coil that due to the different geometric shape in the cold or hot state of the inductor extremely small.
  • Layer thicknesses in the range of approximately 0.5 mm are particularly desirable. These are manufacturing technology still well representable and on the other hand big enough to be suitable To be able to guarantee the quality of the inductor coil. Because of the good electrical material Conduction properties are particularly suitable for copper.
  • the substrate has plated-through holes for the electrically conductive connection of the two inductor coils Openings on. This is simple in terms of production technology and also makes it possible, if necessary numerous coil segments on the top and bottom of the substrate in Series and / or in parallel in the desired manner to electrically interconnect.
  • the spiral-shaped conductor track is an inductor coil essentially spatially in the spiral area between each Arranged turns of the conductor track of the other inductor.
  • the defined offset between the top and bottom surfaces of the inductor covered with metal especially possible with known coating or etching techniques.
  • the two inductor coils are essentially geometrically identical and arranged essentially one above the other. Furthermore, they are in the same direction flowed through electrical current in order to create the strongest possible field of the inductor coil for the heating process of the bottom of a saucepan placed on the hob can.
  • the construction of the inductor is particularly compact and simple to manufacture the hob manageable if the two inductor coils are arranged together on both sides Insulation washers and ferrite elements are prefabricated into a flat unit as a module.
  • a hob has a glass ceramic plate 1, below that in the area marked Cooking area an inductor 3 is supported. This has a circular surface coated on both sides Substrate plate 5 made of aluminum oxide with a thickness of about 0.8 mm. While on the top of the substrate plate 5 in thick-film technology, a first spiral copper inductor 7 is applied, the underside of the ceramic substrate plate 5 with a also spiral-shaped second inductor 9 coated from copper material.
  • the substrate plate has the electrically conductive connection of the two inductor coils 7, 9 in their center 5 about a hole at its center, which acts as an electrically conductive via 11 is formed.
  • the distance between the turns of flat copper conductor tracks 13 of the two spiral inductor coils 7, 9 are not uniform over the entire area of the Inductor coils 7, 9 selected. On the one hand, this makes it possible to control the heat distribution in the To influence inductor 3 or the substrate plate 5 in a targeted manner, and on the other hand, the through the inductor coils 7, 9 generated field distribution can be set specifically. For further The conductor tracks reduce the self-heating of the coils 7, 9 and the substrate plate 5 13 of the two inductor coils 7, 9 are partially offset.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Coils Or Transformers For Communication (AREA)
  • General Induction Heating (AREA)
  • Electrotherapy Devices (AREA)
  • Induction Heating Cooking Devices (AREA)
EP99119127A 1998-10-05 1999-10-05 Inducteur destiné aux plaques à induction Expired - Lifetime EP0993233B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19845844 1998-10-05
DE19845844A DE19845844A1 (de) 1998-10-05 1998-10-05 Induktor für ein Induktions-Kochfeld

Publications (3)

Publication Number Publication Date
EP0993233A2 true EP0993233A2 (fr) 2000-04-12
EP0993233A3 EP0993233A3 (fr) 2005-08-17
EP0993233B1 EP0993233B1 (fr) 2008-01-02

Family

ID=7883482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99119127A Expired - Lifetime EP0993233B1 (fr) 1998-10-05 1999-10-05 Inducteur destiné aux plaques à induction

Country Status (4)

Country Link
US (1) US6144019A (fr)
EP (1) EP0993233B1 (fr)
AT (1) ATE383058T1 (fr)
DE (2) DE19845844A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017109610A1 (fr) * 2015-12-23 2017-06-29 BSH Hausgeräte GmbH Dispositif de cuisinière à induction et procédé d'actionnement d'un dispositif de cuisinière à induction

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10159682A1 (de) * 2001-11-30 2003-06-26 Ego Elektro Geraetebau Gmbh Vorrichtung zur Markierung einer Induktionsspule durch Beleuchtung
US6956188B2 (en) * 2002-12-06 2005-10-18 General Electric Company Induction heating coil with integrated resonant capacitor and method of fabrication thereof, and induction heating system employing the same
KR100710233B1 (ko) * 2005-10-17 2007-04-20 엘지전자 주식회사 전기 레인지
DE102005056501A1 (de) * 2005-11-28 2007-05-31 Schott Ag Flaches Induktionskochsystem
DE102006023800B4 (de) 2006-05-20 2014-07-24 Electrolux Home Products Corporation N.V. Induktionskochfeld
US20090309683A1 (en) * 2008-06-16 2009-12-17 Cochran William T Sensor inductors, sensors for monitoring movements and positioning, apparatus, systems and methods therefore
CN102387621A (zh) * 2010-08-30 2012-03-21 台达电子工业股份有限公司 具有线圈结构的电器设备及其线圈结构和制法
DE102011050867A1 (de) * 2011-06-06 2012-12-06 Schott Ag Hochfeste eingefärbte. beidseitig glatte Glaskeramik als Kochfläche
EP2907363B1 (fr) * 2012-10-11 2018-06-27 Arçelik Anonim Sirketi Appareil de cuisson sans fil fonctionnant sur une table de cuisson à induction
ES2619114B1 (es) * 2015-12-22 2018-04-10 Bsh Electrodomésticos España, S.A. Campo de cocción por inducción
ITUB20161251A1 (it) * 2016-03-02 2017-09-02 Irca Spa Piano cottura ad induzione e metodo per la realizzazione di piani cottura ad induzione
US11665790B2 (en) * 2016-12-22 2023-05-30 Whirlpool Corporation Induction burner element having a plurality of single piece frames
WO2018116064A1 (fr) * 2016-12-23 2018-06-28 BSH Hausgeräte GmbH Dispositif pour appareil de cuisson et procédé de fabrication d'un dispositif pour appareil de cuisson
EP3603339B1 (fr) * 2017-03-30 2021-10-13 BSH Hausgeräte GmbH Dispositif à plaque de cuisson à induction
ES2939380T3 (es) * 2017-03-30 2023-04-21 Bsh Hausgeraete Gmbh Dispositivo de campo de cocción por inducción
ES2714427A1 (es) * 2017-11-28 2019-05-28 Bsh Electrodomesticos Espana Sa Dispositivo de campo de coccion
WO2021262247A1 (fr) * 2020-06-22 2021-12-30 Bonbowl, LLC Système de table de cuisson à induction, ustensile de cuisson et couvercle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH676181A5 (fr) * 1987-10-29 1990-12-14 Electrolux Ab
DE19604436A1 (de) * 1996-02-07 1997-08-14 Bosch Siemens Hausgeraete Muldenplatteninduktor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2120564A5 (fr) * 1971-01-08 1972-08-18 Stel
US3843857A (en) * 1972-05-26 1974-10-22 R Cunningham Induction heating system primarily intended for cooking use
DE2806825A1 (de) * 1978-02-17 1979-08-23 Neff Werke Kochplatte mit induktionsheizung
JPS55144796U (fr) * 1979-04-04 1980-10-17
US4453067A (en) * 1982-01-11 1984-06-05 Whirlpool Corporation Induction heating coil
JPH0541274A (ja) * 1991-08-06 1993-02-19 Sharp Corp 電磁誘導加熱調理器
KR0143226B1 (ko) * 1991-08-08 1998-07-01 구자홍 인쇄회로 기판을 이용한 전자조리기의 가열장치
US5528020A (en) * 1991-10-23 1996-06-18 Gas Research Institute Dual surface heaters
FR2726963B1 (fr) * 1994-11-15 1996-12-06 Europ Equip Menager Foyer de cuisson a induction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH676181A5 (fr) * 1987-10-29 1990-12-14 Electrolux Ab
DE19604436A1 (de) * 1996-02-07 1997-08-14 Bosch Siemens Hausgeraete Muldenplatteninduktor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017109610A1 (fr) * 2015-12-23 2017-06-29 BSH Hausgeräte GmbH Dispositif de cuisinière à induction et procédé d'actionnement d'un dispositif de cuisinière à induction

Also Published As

Publication number Publication date
EP0993233B1 (fr) 2008-01-02
DE19845844A1 (de) 2000-04-06
US6144019A (en) 2000-11-07
EP0993233A3 (fr) 2005-08-17
DE59914595D1 (de) 2008-02-14
ATE383058T1 (de) 2008-01-15

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