EP1985931A1 - Cooking hob - Google Patents

Cooking hob Download PDF

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Publication number
EP1985931A1
EP1985931A1 EP07008273A EP07008273A EP1985931A1 EP 1985931 A1 EP1985931 A1 EP 1985931A1 EP 07008273 A EP07008273 A EP 07008273A EP 07008273 A EP07008273 A EP 07008273A EP 1985931 A1 EP1985931 A1 EP 1985931A1
Authority
EP
European Patent Office
Prior art keywords
carrier element
hob
wire
heating elements
electrical connector
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
EP07008273A
Other languages
German (de)
French (fr)
Other versions
EP1985931B1 (en
Inventor
Heino Hauschildt
Peter Hoffmann
Jürgen Leikam
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP20070008273 priority Critical patent/EP1985931B1/en
Publication of EP1985931A1 publication Critical patent/EP1985931A1/en
Application granted granted Critical
Publication of EP1985931B1 publication Critical patent/EP1985931B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated
    • F24C15/104—Arrangements of connectors, grounding, supply wires

Definitions

  • the invention relates to a cooking hob, in particular for an oven, especially for a domestic oven, comprising a panel shaped carrier element with an upper side and a bottom side, wherein at least one electrical heating element is arranged on the upper side of the carrier element, wherein the heating element is connected to at least one wire and wherein the wire is fed to an electrical connector plug for the supply with electrical energy.
  • FIG 1 where a pre-known domestic oven is depicted.
  • the domestic oven 2 has a hob 1 on its top.
  • the hob 2 has a carrier element 3 with an upper side 4 and a bottom side.
  • On the upper side 4 of the carrier element 3 a plurality of heating elements 6, 7, 8, 9 are located and fixed to the carrier element 3.
  • the hob 1 further comprises a cover made of glass ceramics.
  • FIG 2 the hob 1 is depicted without the cover of glass ceramics.
  • the electrical heating elements 6, 7, 8, 9 are placed on the upper side 4 of the carrier element 3 .
  • Each heating element 6, 7, 8, 9 has an electrical connection which fixes a wire 10, 11, 12, 13 to the heating element 6, 7, 8, 9 for supply of the heating elements 6, 7, 8, 9 with electrical energy.
  • the wires 10, 11, 12, 13 are fed along the upper side 4 of the carrier element 3 and can be guided through an opening in the carrier element 3. Then, the wires are fed to an electrical connector plug 14.
  • the assembly of the hob is quite complicated and thus expensive when using the pre-known design.
  • One aspect is that an automatisation of the assembly process is only possible with a high effort because it is complicated and thus expensive. Also, wiring of all heating elements can cause errors; this demands correction. Finally, the wire material is quite expensive and an economical use is not ensured.
  • the solution of this object according to the invention is characterized in that the at least one wire for the supply of the heating element with electrical energy is arranged at least partially at the bottom side of the carrier element, wherein an electrical connector between the wire and the heating element penetrates at least one opening in the carrier element.
  • the wire is arranged totally at the bottom side of the carrier element.
  • a plurality of heating elements can be arranged on the upper side of the carrier element, wherein each heating element is connected with an electrical connector which penetrates the carrier element.
  • a preferred embodiment of the invention comes up with the electrical connector consisting of at least two parts which are joined, wherein one part is arranged on the upper side and one part is arranged on the bottom side of the carrier element.
  • Both parts can e. g. be connected by a snap-on connection. Also other kinds of connection are possible.
  • the connector can also be made as a one-piece part having two different sections, one for remaining beside the heating element and one for penetrating the opening in the carrier element.
  • the electrical connector is preferably directly connected with the heating element.
  • heating element is arranged on the carrier element to provide different cooking stations on the hob.
  • heating elements are arranged on the upper side of the carrier element.
  • At least two of the heating elements can have different sizes for the different cooking applications.
  • the heating elements are resistance heating elements according to one embodiment of the invention.
  • other kinds of heating elements can be employed, e. g. induction heating elements.
  • the at least one opening in the carrier element is produced by punching.
  • a thin sheet metal panel is used for the carrier element.
  • the wires and a plurality of heating elements can be bundled at the bottom side of the carrier element to a cable loom. This cable loom is then guided to the electrical connector plug.
  • the hob can be a stand-alone or autarkic hob or part of an oven, in particular a domestic oven, and/or built-in or free-standing.
  • the hob can have a design using a ceramic or glass ceramic hob or stove top.
  • FIG 3 shows a cooking hob 1, in particular of an oven (depicted in FIG 1 ), according to one possible embodiment of the invention.
  • the hob 1 consists of a carrier element 3 which has a panel shape; more specifically the carrier element 3 has a rectangular shape and consists of a thin sheet metal.
  • On the upper side 4 of the carrier element 3 four heating elements 6, 7, 8 and 9 are located and fixed (fixing means not shown) wherein the heating elements are resistance heaters in the depicted embodiment. Also other heating elements can be employed, e. g. induction heating elements.
  • each heating element 6, 7, 8, 9 is in contact with an electrical connector 15, which is described in more detail later.
  • the wiring of the heating elements 6, 7, 8, 9 becomes apparent from FIG 4 where the bottom side 5 of the carrier element 3 is visible.
  • the heating elements 6, 7, 8, 9 are shown in dashed lines as they are not visible.
  • the electrical connector 15 penetrates an opening 16 which is machined into the carrier element 3.
  • the opening is produced by punching.
  • the electrical connector 15 consist of two parts 17 and 18.
  • the upper part 17 is located - in the mounted state of the hob - beside the heating element 6, 7, 8, 9 and directly connected to it, while the lower part 18 protrudes through the opening 16.
  • the wires 10, 11, 12, 13 are connected to the part 18 on the bottom side 5.
  • electrical connector 15 can also be designed in any other way.
  • the wires 10, 11, 12, 13 are collected in a central region of the carrier element 3 and run as a cable loom to an electrical connector plug 14 as in the prior art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
  • Resistance Heating (AREA)

Abstract

The invention relates to a cooking hob (1), in particular for an oven (2), especially for a domestic oven, comprising a panel shaped carrier element (3) with an upper side (4) and a bottom side (5), wherein at least one electrical heating element (6, 7, 8, 9) is arranged on the upper side (4) of the carrier element (3), wherein the heating element (6, 7, 8, 9) is connected to at least one wire (10, 11, 12, 13) and wherein the wire (10, 11, 12, 13) is fed to an electrical connector plug (14) for the supply with electrical energy. To protect the wires against heat the invention is characterized in that the at least one wire (10, 11, 12, 13) is arranged at least partially at the bottom side (5) of the carrier element (3), wherein an electrical connector (15) between the wire (10, 11, 12, 13) and the heating element (6, 7, 8, 9) penetrates at least one opening (16) in the carrier element (3).

Description

  • The invention relates to a cooking hob, in particular for an oven, especially for a domestic oven, comprising a panel shaped carrier element with an upper side and a bottom side, wherein at least one electrical heating element is arranged on the upper side of the carrier element, wherein the heating element is connected to at least one wire and wherein the wire is fed to an electrical connector plug for the supply with electrical energy.
  • Cooking hobs of the kind mentioned above are known in the art. Reference is made to FIG 1 where a pre-known domestic oven is depicted. The domestic oven 2 has a hob 1 on its top. The hob 2 has a carrier element 3 with an upper side 4 and a bottom side. On the upper side 4 of the carrier element 3 a plurality of heating elements 6, 7, 8, 9 are located and fixed to the carrier element 3. In the case of the depicted oven 2 the hob 1 further comprises a cover made of glass ceramics.
  • In FIG 2 the hob 1 is depicted without the cover of glass ceramics. On the upper side 4 of the carrier element 3 the electrical heating elements 6, 7, 8, 9 are placed. Each heating element 6, 7, 8, 9 has an electrical connection which fixes a wire 10, 11, 12, 13 to the heating element 6, 7, 8, 9 for supply of the heating elements 6, 7, 8, 9 with electrical energy. The wires 10, 11, 12, 13 are fed along the upper side 4 of the carrier element 3 and can be guided through an opening in the carrier element 3. Then, the wires are fed to an electrical connector plug 14.
  • It has been found detrimental that the wires can become quite hot during use of the hob. Problems can occur with failure of the electrical supply of the heating elements in the case that the wires become too hot during cooking.
  • Furthermore, the assembly of the hob is quite complicated and thus expensive when using the pre-known design. One aspect is that an automatisation of the assembly process is only possible with a high effort because it is complicated and thus expensive. Also, wiring of all heating elements can cause errors; this demands correction. Finally, the wire material is quite expensive and an economical use is not ensured.
  • Therefore, it is an object of the invention to further develop a cooking hob of the above mentioned kind which eliminates the discussed drawbacks. The cables should thus be better protected against heat during the use of the oven. Furthermore, the assembly process should be facilitated to save costs and to allow automatisation of it. Finally, the wires for the supply of the heating elements with electrical energy should be used as economical as possible.
  • The solution of this object according to the invention is characterized in that the at least one wire for the supply of the heating element with electrical energy is arranged at least partially at the bottom side of the carrier element, wherein an electrical connector between the wire and the heating element penetrates at least one opening in the carrier element. Preferably, the wire is arranged totally at the bottom side of the carrier element.
  • By the suggested design, it becomes possible to better protect the wires against heat produced by the heating elements during the use of the hob.
  • A plurality of heating elements can be arranged on the upper side of the carrier element, wherein each heating element is connected with an electrical connector which penetrates the carrier element.
  • A preferred embodiment of the invention comes up with the electrical connector consisting of at least two parts which are joined, wherein one part is arranged on the upper side and one part is arranged on the bottom side of the carrier element.
  • Both parts can e. g. be connected by a snap-on connection. Also other kinds of connection are possible. Basically the connector can also be made as a one-piece part having two different sections, one for remaining beside the heating element and one for penetrating the opening in the carrier element.
  • The electrical connector is preferably directly connected with the heating element.
  • Normally, more than one heating element is arranged on the carrier element to provide different cooking stations on the hob. Thus, preferably four heating elements are arranged on the upper side of the carrier element.
  • As known from prior art domestic ovens, at least two of the heating elements can have different sizes for the different cooking applications.
  • The heating elements are resistance heating elements according to one embodiment of the invention. Of course, also other kinds of heating elements can be employed, e. g. induction heating elements.
  • Preferably, the at least one opening in the carrier element is produced by punching. Normally, a thin sheet metal panel is used for the carrier element.
  • The wires and a plurality of heating elements can be bundled at the bottom side of the carrier element to a cable loom. This cable loom is then guided to the electrical connector plug.
  • The hob can be a stand-alone or autarkic hob or part of an oven, in particular a domestic oven, and/or built-in or free-standing.
  • Preferably, the hob can have a design using a ceramic or glass ceramic hob or stove top.
  • By the suggested design it becomes possible to protect the cables from the heat produced by the heating elements. Furthermore, an automatisation process of the assembly becomes quite easy.
  • In the drawings an embodiment of the invention is depicted.
    • FIG 1
    shows a perspective view of a domestic oven with a hob on its top side,
    FIG 2
    shows the hob in perspective view without its glass ceramic cover panel according to the prior art,
    FIG 3
    shows the same view as FIG 2 according to an embodiment of the invention, where the upper side of the hob is visible,
    FIG 4
    shows the hob of FIG 3 in perspective view, where the bottom side of the carrier element is visible and
    FIG 5
    shows the detail "Z" according to FIG 3.
  • FIG 3 shows a cooking hob 1, in particular of an oven (depicted in FIG 1), according to one possible embodiment of the invention. The hob 1 consists of a carrier element 3 which has a panel shape; more specifically the carrier element 3 has a rectangular shape and consists of a thin sheet metal. On the upper side 4 of the carrier element 3 four heating elements 6, 7, 8 and 9 are located and fixed (fixing means not shown) wherein the heating elements are resistance heaters in the depicted embodiment. Also other heating elements can be employed, e. g. induction heating elements.
  • As can be further seen from FIG 3 no wires run on the upper side 4 of the carrier element 3. Each heating element 6, 7, 8, 9 is in contact with an electrical connector 15, which is described in more detail later.
  • The wiring of the heating elements 6, 7, 8, 9 becomes apparent from FIG 4 where the bottom side 5 of the carrier element 3 is visible. The heating elements 6, 7, 8, 9 are shown in dashed lines as they are not visible. In the synopsis with FIG 5 is can be seen that the electrical connector 15 penetrates an opening 16 which is machined into the carrier element 3. Preferably the opening is produced by punching.
  • As can be seen from FIG 5 the electrical connector 15 consist of two parts 17 and 18. The upper part 17 is located - in the mounted state of the hob - beside the heating element 6, 7, 8, 9 and directly connected to it, while the lower part 18 protrudes through the opening 16. The wires 10, 11, 12, 13 are connected to the part 18 on the bottom side 5.
  • Of course the electrical connector 15 can also be designed in any other way.
  • The wires 10, 11, 12, 13 are collected in a central region of the carrier element 3 and run as a cable loom to an electrical connector plug 14 as in the prior art.
    • Reference Numerals
    • 1
    Hob
    2
    Oven
    3
    Carrier element
    4
    Upper side
    5
    Bottom side
    6
    Electrical heating element
    7
    Electrical heating element
    8
    Electrical heating element
    9
    Electrical heating element
    10
    Wire
    11
    Wire
    12
    Wire
    13
    Wire
    14
    Electrical connector plug
    15
    Electrical connector
    16
    Opening
    17
    Part of the electrical connector
    18
    Part of the electrical connector

Claims (11)

  1. Cooking hob (1), in particular for an oven (2), especially for a domestic oven, comprising a panel shaped carrier element (3) with an upper side (4) and a bottom side (5), wherein at least one electrical heating element (6, 7, 8, 9) is arranged on the upper side (4) of the carrier element (3), wherein the heating element (6, 7, 8, 9) is connected to at least one wire (10, 11, 12, 13) and wherein the wire (10, 11, 12, 13) is fed to an electrical connector plug (14) for the supply with electrical energy,
    characterized in that
    the at least one wire (10, 11, 12, 13) is arranged at least partially at the bottom side (5) of the carrier element (3), wherein an electrical connector (15) between the wire (10, 11, 12, 13) and the heating element (6, 7, 8, 9) penetrates at least one opening (16) in the carrier element (3).
  2. Hob according to claim 1, characterized in that the wire (10, 11, 12, 13) is arranged totally at the bottom side (5) of the carrier element (3).
  3. Hob according to claim 1 or 2, characterized in that a plurality of heating elements (6, 7, 8, 9) are arranged on the upper side (4) of the carrier element (3), wherein each heating element (6, 7, 8, 9) is connected with an electrical connector (15) which penetrates the carrier element (3).
  4. Hob according to claim 3, characterized in that the electrical connector (15) consists of at least two parts (17, 18) which are joined, wherein one part (17) is arranged on the upper side (4) and one part (18) is arranged on the bottom side (5).
  5. Hob according to at least one of claims 1 to 4, characterized in that the electrical connector (15) is directly connected with the heating element (6, 7, 8, 9).
  6. Hob according to at least on of claims 3 to 5, characterized in that four heating elements (6, 7, 8, 9) are arranged on the upper side (4) of the carrier element (3).
  7. Hob according to at least one of claims 3 to 6, characterized in that at least two of the heating elements (6, 7, 8, 9) are different in size.
  8. Hob according to at least one of claims 1 to 7, characterized in that the heating elements (6, 7, 8, 9) are resistance heating elements.
  9. Hob according to at least one of claims 1 to 8, characterized in that at least one opening (16) in the carrier element (3) is produced by punching.
  10. Hob according to at least one of claims 1 to 9, characterized in that the wires (10, 11, 12, 13) of a plurality of heating elements (6, 7, 8, 9) are bundled at the bottom side (5) of the carrier element (3) to a cable loom.
  11. Hob according to at least one of claims 1 to 10, characterized in that it is designed as a ceramic or glass ceramic hob or stove top.
EP20070008273 2007-04-24 2007-04-24 Cooking hob Not-in-force EP1985931B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20070008273 EP1985931B1 (en) 2007-04-24 2007-04-24 Cooking hob

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20070008273 EP1985931B1 (en) 2007-04-24 2007-04-24 Cooking hob

Publications (2)

Publication Number Publication Date
EP1985931A1 true EP1985931A1 (en) 2008-10-29
EP1985931B1 EP1985931B1 (en) 2012-09-05

Family

ID=38895730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070008273 Not-in-force EP1985931B1 (en) 2007-04-24 2007-04-24 Cooking hob

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EP (1) EP1985931B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016077963A1 (en) * 2014-11-17 2016-05-26 魏晓敏 Electric cooking bench

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1236100A (en) * 1959-06-05 1960-07-15 Const Electro Thermiques Soc G Cooking plate for household electric heating appliances
FR1311445A (en) 1961-11-18 1962-12-07 Oatley Technical Dev Electric hot plate
FR1318639A (en) 1961-12-05 1963-02-22 Oatley Technical Dev Electric hot plate
GB1000367A (en) * 1962-02-01 1965-08-04 Fischer Karl Improvements in or relating to hotplates for cookers
EP0108916A2 (en) * 1982-11-12 1984-05-23 Bosch-Siemens HausgerÀ¤te GmbH Cooking plate
DE3315333A1 (en) * 1983-04-28 1984-10-31 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen COOKER WITH MULTIPLE ELECTRIC COOKING PLATES
DE19849136A1 (en) 1998-10-23 2000-04-27 Ako Werke Gmbh & Co Hob

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1236100A (en) * 1959-06-05 1960-07-15 Const Electro Thermiques Soc G Cooking plate for household electric heating appliances
FR1311445A (en) 1961-11-18 1962-12-07 Oatley Technical Dev Electric hot plate
FR1318639A (en) 1961-12-05 1963-02-22 Oatley Technical Dev Electric hot plate
GB1000367A (en) * 1962-02-01 1965-08-04 Fischer Karl Improvements in or relating to hotplates for cookers
EP0108916A2 (en) * 1982-11-12 1984-05-23 Bosch-Siemens HausgerÀ¤te GmbH Cooking plate
EP0108916B1 (en) 1982-11-12 1988-05-18 Bosch-Siemens HausgerÀ¤te GmbH Cooking plate
DE3315333A1 (en) * 1983-04-28 1984-10-31 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen COOKER WITH MULTIPLE ELECTRIC COOKING PLATES
DE19849136A1 (en) 1998-10-23 2000-04-27 Ako Werke Gmbh & Co Hob

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016077963A1 (en) * 2014-11-17 2016-05-26 魏晓敏 Electric cooking bench

Also Published As

Publication number Publication date
EP1985931B1 (en) 2012-09-05

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