EP4203611A1 - Dispositif d'éclairage d'une plaque de cuisson à induction - Google Patents

Dispositif d'éclairage d'une plaque de cuisson à induction Download PDF

Info

Publication number
EP4203611A1
EP4203611A1 EP21383171.2A EP21383171A EP4203611A1 EP 4203611 A1 EP4203611 A1 EP 4203611A1 EP 21383171 A EP21383171 A EP 21383171A EP 4203611 A1 EP4203611 A1 EP 4203611A1
Authority
EP
European Patent Office
Prior art keywords
support
illumination device
induction
coil
induction 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.)
Withdrawn
Application number
EP21383171.2A
Other languages
German (de)
English (en)
Inventor
José Ignacio Múgica Odriozola
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.)
Copreci SCL
Original Assignee
Copreci SCL
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 Copreci SCL filed Critical Copreci SCL
Priority to EP21383171.2A priority Critical patent/EP4203611A1/fr
Publication of EP4203611A1 publication Critical patent/EP4203611A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • H05B6/1218—Cooking devices induction cooking plates or the like and devices to be used in combination with them with arrangements using lights for heating zone state indication

Definitions

  • the present invention relates to illumination devices for induction hobs and to induction hobs incorporating said illumination device.
  • Induction hobs comprising at least one induction coil arranged under an induction cooktop and configured for generating a magnetic field for heating a cooking vessel arranged on the induction cooktop over said induction coil are known.
  • induction cooktops usually comprise visual markings to indicate to the user the cooking areas where the induction coils are arranged.
  • said visual markings are usually prone to fade over time, such that the cooking areas are no longer clearly visible for the user.
  • DE19546853A1 relates to a visual indicator for an induction hob comprising at least one induction coil.
  • the visual indicator comprises a wire forming at least one turn around the induction coil such that the magnetic field generated by said induction coil induces a current in said wire.
  • the visual indicator also comprises illumination means, for example LED diodes connected to said cable, said illumination means being arranged around the induction coil.
  • US6828530B2 relates to an illumination apparatus for an induction coil comprising a support comprising a conductor track by way of an induced coil in which a current is induced when the induction coil generates a magnetic field, and illumination means connected to said induced coil.
  • the support is preferably a PCB and shaped in a circular section, with several illumination apparatus being arranged around each induction coil.
  • the object of the invention is to provide an illumination device and an induction hob incorporating said illumination device, as defined in the claims.
  • a first aspect relates to an illumination device for an induction hob comprising at least one induction coil configured for generating a magnetic field.
  • the illumination device of the invention comprises a support configured for being arranged around the induction coil, said support comprising at least one conductor track, and a connection circuit in which illumination means are connected.
  • the support is flexible and comprises a first end and a second end fixed to one another, the support thus delimiting the contour of the induction coil.
  • the at least one conductor track and the connection circuit extend from the first end of the support to the second end of the support.
  • the two ends of the support are connected such that the at least one conductor track forms an induced coil in which a current is generated when the induction coil generates a magnetic field, and the connection circuit is connected to the induced coil.
  • Arranging the induced coil and the illumination means in a support facilitates assembly of the illumination device, since the operator has to handle a single element.
  • the support of the illumination device described in US6828530B2 has a circular ring shape or circular ring segment shape, with a great deal of material being wasted when manufacturing said supports.
  • a second aspect relates to an induction hob.
  • the induction hob of the invention comprises an induction cooktop, at least one induction coil arranged below the induction cooktop, and an illumination device such as the one described in the first aspect of the invention arranged around said induction coil.
  • the illumination device is configured for indicating, with the illumination means, the location of the induction coil when said induction coil generates a magnetic field.
  • a first aspect of the invention relates to an illumination device 1 for an induction hob 7 comprising at least one induction coil 6 configured for generating a magnetic field B.
  • the illumination device 1, 1', 1" comprises a support 2, 2', 2" configured for being arranged around the induction coil 6.
  • the support 2, 2', 2" is flexible and comprises a first end 20, 20', 20" and a second end 21, 21', 21" fixed to one another, the support 2, 2', 2" thus delimiting the contour of the induction coil 6.
  • the first end 20, 20', 20" and the second end 21, 21', 21" of the support 2, 2', 2" are preferably fixed to one another by means of welding.
  • the ends of the support 2, 2', 2" are alternatively fixed to one another by means of an intermediate part, preferably a flat connector.
  • the support 2, 2', 2" comprises at least one conductor track 3, 4, 3', 3", 4" and a connection circuit 5, 5', 5" in which illumination means are connected.
  • the at least one conductor track 3, 4, 3', 3", 4" and the connection circuit 5, 5', 5" extend from the first end 20, 20', 20" of the support 2, 2', 2" to the second end 21, 21', 21" of the support 2, 2', 2".
  • the two ends 20, 21, 20', 21', 20", 21" of the support 2, 2', 2" are connected such that the at least one conductor track 3, 4, 3', 3", 4" forms an induced coil in which a current is generated when the induction coil 6 generates a magnetic field, and the connection circuit 5, 5', 5" is connected to the induced coil. Therefore, the current induced in the induced coil is what powers the illumination means. Based on the current needed to power the illumination means, the support 2', 2', 2" will comprise a single conductor track 3' or several conductor tracks 3, 4, 3", 4".
  • the support 2' comprise a single conductor track 3'
  • single conducted turn will be formed by fixing the ends 20, 21, 20", 21" of the support 2' to one another, and the induced coil will therefore comprise a single induced turn.
  • the support 2, 2" will comprise several conductor tracks 3, 4, 3", 4" which will form a plurality of induced turns connected in series by fixing the ends 20', 21' of the support 2, 2" to one another, and the induced coil will therefore comprise said plurality of induced turns connected in series.
  • the induced coil and the connection circuit 5, 5', 5" have a first terminal 40, 50, 30', 50', 30", 50" arranged at the first end 20, 20', 20" of the support 2, 2', 2" and a second terminal 31, 51, 31', 51', 41", 51" arranged at the second end 21, 21', 21" of the support 2, 2', 2", the second terminal 31, 31', 41" of the induced coil being connected with the first terminal 50, 50', 50" of the connection circuit 5, 5', 5" and the second terminal 51, 51', 51" of the connection circuit 5, 5', 5" being connected with the first terminal 40, 30', 30" of the induced coil when the two ends of the support 2, 2', 2" are fixed to one another.
  • the support 2, 2', 2" is preferably a flexible printed circuit, with the at least one conductor track 3, 4, 3', 3", 4" and the circuit connection 5, 5', 5" being printed tracks on said tape.
  • the support can alternatively be produced by subtractive manufacturing (PCB etching) in which a copper-coated sheet is used as the starting material, and in it the at least one conductor track and the connection circuit are generated, removing the excess copper.
  • the support 2, 2', 2" is preferably a flexible tape, i.e., the support 2, 2', 2" preferably has an elongated shape before fixing the first end 20, 20', 20" and the second end 21, 21', 21" to one another.
  • Said tape can be manufactured, for example, from PET, PEN, PC, or Kapton.
  • the illumination means preferably comprise at least one LED 54, 54', 54", said LED 54, 54', 54" preferably being an SMD LED.
  • connection circuit 5, 5' preferably comprises at least one connection track 52, 52' extending from the first end 20, 20', 20" of the support 2, 2', 2" to the second end 21, 21', 21" of the support 2, 2', 2", and the illumination means comprise a plurality of LEDs 54, 54', said LEDs 54, 54' being arranged in series connected to one another by means of said at least one connection track 52, 52'.
  • connection circuit 5" alternatively comprises a connection track 52" extending from the first end 20" of the support 2", an additional connection track 53" extending from the second end 21" of the support 2", and a plurality of parallel branches 55", each parallel branch 55" comprising a first terminal connected to the connection track 52" and a second terminal connected to the additional connection track 53".
  • the illumination means comprise a plurality of LEDs 54", arranging each LED 54" in a respective parallel branch 55".
  • Each parallel branch can optionally comprise an impedance to limit the current circulating through the LED of the corresponding parallel branch.
  • a second aspect relates to an induction hob 7.
  • the induction hob 7 of the invention comprises an induction cooktop 70, at least one induction coil 6 arranged below the induction cooktop, and an illumination device 1, 1', 1" such as the one described above arranged around said induction coil 6.
  • the illumination device 1, 1', 1" is configured for indicating, with the illumination means, the location of the induction coil 6 when said induction coil 6 generates a magnetic field B.
  • the induction hob preferably comprises a ring arranged around the induction coil 6, with the support 2, 2', 2" being fixed to said ring.
  • the induction hob preferably comprises a light guide arranged on the illumination device 1, 1', 1".
  • Figures 1 to 3 show a first embodiment of the illumination device 1 of the invention.
  • the illumination device 1 of the first embodiment comprises a flexible support 2 configured for being arranged around an induction coil 6.
  • the support 2 of this first embodiment has a rectangular shape and comprises a first end 20 and a second end 21, as shown in Figure 1 , wherein the support 2 is shown before fixing its ends 20, 21 to one another.
  • Figures 2 and 3 show the support 2 once the first end 20 and the second end 21 have been fixed to one another, with the support 2 being arranged around an induction coil 6 configured for generating a magnetic field B.
  • the support 2 of this first embodiment comprises a first conductor track 3, a second conductor track 4, and a connection circuit 5 in which illumination means are connected.
  • the illumination means comprise a plurality of SMD LEDs.
  • the first conductor track 3, the second conductor track 4, and the connection circuit 5 extend from the first end 20 of the support 2 to the second end 21 of the support 2.
  • the support 2 of this first embodiment is a flexible printed circuit, with the first conductor track 3, the second conductor track 4, and the circuit connection 5 being printed tracks.
  • the two ends 20, 21 of the support 2 are fixed to one another, preferably by means of welding, such that the first conductor track 3 forms a first induced turn and the second conductor track 4 forms a second induced turn, said induced turns being connected in series such that they form an induced coil in which a current is generated when the induction coil 6 generates a magnetic field B. Furthermore, by connecting the two ends 20, 21 of the support 2, the connection circuit 5 is connected to the induced coil. Therefore, the current induced in the induced coil is what powers the illumination means.
  • the first conductor track 3 comprises a first terminal 30 arranged at the first end 20 of the support 2 and a second terminal 31 arranged at the second end 21 of the support 2.
  • the second conductor track 4 comprises a first terminal 40 arranged at the first end 20 of the support 2 and a second terminal 41 arranged at the second end 21 of the support 2.
  • the induced turns generated by the first conductor track 3 and the second conductor track 4 are connected in series since the second terminal 41 of the second conductor track 4 is connected to the first terminal 30 of the first conductor track 3, forming the induced coil comprising a first terminal 40 at the first end 20 of the support and a second terminal 31 at the second end 21 of the support 2.
  • connection circuit 5 comprises a connection track 52 extending from the first end 20 of the support 2 to the second end 21 of the support 2, such that the connection track 52 comprises a first terminal 50 arranged at the first end 20 of the support 2 and a second terminal 51 arranged at the second end 21 of the support 2.
  • the plurality of LEDs of the illumination means are connected in series by means of the connection track 52.
  • the second terminal 31 of the induced coil is connected with the first terminal 50 of the connection circuit 5, and the second terminal 51 of the connection circuit 5 is connected with the first terminal 40 of the induced coil, as observed in Figure 3 .
  • the first conductor track 3 overlaps the second conductor track 4 at one point and the connection track 52 at another point.
  • the second conductor track 4 and the connection track 52 comprise a low ohmic value resistor arranged on said overlap points such that electrical contact with the conductor track 3 at said overlap points is prevented.
  • Figure 4 shows a second embodiment of the illumination device 1' of the invention.
  • the illumination device 1' of this second embodiment differs from the illumination device 1 of the first embodiment in that the support 2' comprises a single conductor track 3', such that a single induced turn is formed by fixing the ends 20', 21' of the support 2' to one another, and therefore the induced coil comprises a single induced turn.
  • Figure 5 shows a third embodiment of the illumination device 1" of the invention.
  • the illumination device 1" of this third embodiment differs from the illumination device 1 of the first embodiment in that the connection circuit 5" comprises a connection track 52" extending from the first end 20" of the support 2", an additional connection track 53" extending from the second end 21" of the support 2", and a plurality of parallel branches 55", each parallel branch 55" comprising a first terminal connected to the connection track 52" and a second terminal connected to the additional connection track 53". Therefore, the illumination means comprise a plurality of LEDs 54", arranging each LED 54" in a respective parallel branch 55".
  • the second terminal 41" of the induced coil is connected with the first terminal 50" of the connection circuit 5 and the second terminal 51" of the connection circuit 5" is connected with the first terminal 30" of the induced coil by fixing the two ends 20", 21" of the support 2" to one another.
  • Figure 6 shows an embodiment of an induction hob 7 according to the invention.
  • the induction hob 7 of this embodiment comprises an induction cooktop 70, a first induction coil 6, a second induction coil, and a third induction coil arranged below the induction cooktop, and an illumination device 1 such as the one described above arranged around each of said induction coils 6.
  • the illumination device 1 arranged on the first induction coil 6 is configured for indicating, with the illumination means, the location of the induction coil 6 when said induction coil 6 generates a magnetic field B.
  • the second induction coil and the third induction coil would not be generating a magnetic field, so the illumination devices associated with said induction coils would be shut off.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP21383171.2A 2021-12-21 2021-12-21 Dispositif d'éclairage d'une plaque de cuisson à induction Withdrawn EP4203611A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21383171.2A EP4203611A1 (fr) 2021-12-21 2021-12-21 Dispositif d'éclairage d'une plaque de cuisson à induction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21383171.2A EP4203611A1 (fr) 2021-12-21 2021-12-21 Dispositif d'éclairage d'une plaque de cuisson à induction

Publications (1)

Publication Number Publication Date
EP4203611A1 true EP4203611A1 (fr) 2023-06-28

Family

ID=79283170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21383171.2A Withdrawn EP4203611A1 (fr) 2021-12-21 2021-12-21 Dispositif d'éclairage d'une plaque de cuisson à induction

Country Status (1)

Country Link
EP (1) EP4203611A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19546853A1 (de) 1995-12-15 1997-06-19 Aeg Hausgeraete Gmbh Markierung für eine induktionsbeheizte Kochstelle
JP2001196155A (ja) * 2000-01-13 2001-07-19 Matsushita Electric Ind Co Ltd 誘導加熱調理器
US6828530B2 (en) 2001-11-30 2004-12-07 E.G.O. Elektro-Geraetebau Gmbh Apparatus for marking the operation of an induction coil by illumination
KR102030666B1 (ko) * 2019-02-25 2019-10-10 주식회사 아미크론 작동상태 확인이 용이한 유도가열 조리기

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19546853A1 (de) 1995-12-15 1997-06-19 Aeg Hausgeraete Gmbh Markierung für eine induktionsbeheizte Kochstelle
JP2001196155A (ja) * 2000-01-13 2001-07-19 Matsushita Electric Ind Co Ltd 誘導加熱調理器
US6828530B2 (en) 2001-11-30 2004-12-07 E.G.O. Elektro-Geraetebau Gmbh Apparatus for marking the operation of an induction coil by illumination
KR102030666B1 (ko) * 2019-02-25 2019-10-10 주식회사 아미크론 작동상태 확인이 용이한 유도가열 조리기

Similar Documents

Publication Publication Date Title
US8362868B2 (en) Plane coil
US6498325B1 (en) Modular induction heated cooking hob having reduced radiation and a method of making the same
EP1317164B1 (fr) Dispositif de marquage d'une bobine à induction par illumination
US20140183992A1 (en) Motor and manufacturing method thereof
US11605494B2 (en) Coil component
US20190049077A1 (en) Flexible Power Distribution System
CN106358331B (zh) 点亮装置以及使用该点亮装置的照明装置
CN106051644A (zh) 用于发光装置的支承结构及相应方法
EP4203611A1 (fr) Dispositif d'éclairage d'une plaque de cuisson à induction
CN106030195B (zh) 照明布置
KR102690907B1 (ko) 조리대용 인덕션 가열기
JP6657276B2 (ja) 位置検出センサの製法
JP4928064B2 (ja) 電子回路装置および電子回路装置をコーディングする方法
KR101939051B1 (ko) 전류 감지 장치
US20170358966A1 (en) Brushless direct current motor, stator part and winding method thereof
US9763333B2 (en) Shared resistor pad bypass
JP6300958B2 (ja) 受信装置基板
JP2011146330A (ja) 誘導加熱調理器
US9336476B1 (en) Method of making RFID devices on fabrics by stitching metal wires
KR101208110B1 (ko) 전자파차단 발열선 연결장치
US20200088392A1 (en) Led strips bussing system and process
JPS6164097A (ja) 電子調理板
EP3030056A2 (fr) Appareil pour former une courbure arrondie dans un câble flexible plat
JP4747491B2 (ja) 電界シールド
JPH08298181A (ja) 誘導加熱装置の動作表示回路

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20240103