EP1579731A1 - Induction hob - Google Patents
Induction hobInfo
- Publication number
- EP1579731A1 EP1579731A1 EP03735665A EP03735665A EP1579731A1 EP 1579731 A1 EP1579731 A1 EP 1579731A1 EP 03735665 A EP03735665 A EP 03735665A EP 03735665 A EP03735665 A EP 03735665A EP 1579731 A1 EP1579731 A1 EP 1579731A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hob
- housing
- hob according
- inductor
- plastic profile
- 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
Links
- 230000006698 induction Effects 0.000 title abstract description 12
- 238000001816 cooling Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 3
- 235000004522 Pentaglottis sempervirens Nutrition 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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
- H05B6/1263—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements using coil cooling arrangements
Definitions
- the present invention relates, as stated in the description, to an induction hob, in which the manufacture of the housing, which encloses the inductor and various components, is to be simplified in such a way that the housing can be produced with a high degree of dimensional accuracy in a few steps.
- Household induction hobs are known in which a vessel, which is arranged on the hob plate, is heated in the complete absence of a heat source.
- a cooktop plate is provided, on which the vessels to be heated are arranged, and below which at least one inductor is provided, which is the main component by means of which the heating takes place.
- the corresponding cooktop is, like other types of cooktop, fixed in an opening in the worktop.
- Said components and the inductor in turn are arranged in a housing which has a base and side walls connected to the hob plate and delimiting a space in which the inductor is arranged or mounted.
- the invention comprises a cooktop with a cooktop plate, below which at least one inductor is arranged, which is arranged in a housing, which housing has a housing base and is pulled up laterally with which Hob plate connected side walls that define a housing interior in which the inductor is arranged.
- At least a portion of the housing base is designed as a one-piece plastic profile part.
- plastic profile part carries hob components of the inductor.
- plastic profile part is connected to a hob frame.
- the designated housing according to the invention is designed as a one-piece plastic profile part.
- Novelty the shape and / or material thickness of the plastic profile part according to the invention is varied and adapted according to the respective functional requirements.
- At least one functional element for component reduction can be formed in one piece on the housing.
- the functional element can be connected in one piece to the housing via a predetermined separation point.
- the functional element is held ready for use on the housing, preferably clamped and / or screwed.
- the functional element is designed as a latching element, with which at least one cooktop component, for example an inductor support, cooling air blower or an electronic control device, is detachably fastened in the housing.
- the locking element has a run-up slope, along which the cooktop component is guided into a locking connection with the locking element.
- the locking element can be connected to the housing via a spring-elastic connecting web.
- the latching element is formed with a side stop, which is in fixed contact with the inductor support for the fixed mounting of an inductor support parallel to the hob plate.
- the latching element has a height stop with which the height position of the hob component is fixed in the housing.
- a compression spring can be assigned to the named locking element, which presses the inductor support against the height stop with a spring force directed towards the hob plate.
- the inductor support is pressed into an assembly position against the height stop by means of the compression spring.
- the cooktop When the cooktop is installed, it presses the inductor support into an operating position below the installation position.
- the side stop of the locking element guides the inductor support vertically when moving between the mounting position and the operating position or during assembly or disassembly.
- the functional element is designed as a bearing element for storing the hob in a worktop cutout.
- the functional element is designed as an air baffle for a cooling air flow.
- the functional element is designed as a strain relief for cables.
- the cooktop is a mixed cooktop.
- the hob of the invention has the advantages that it is possible to manufacture the housing in a simple manner, in a few work steps and with high dimensional accuracy.
- the adaptation can be carried out in a simple manner by the appropriately adapted injection molded parts.
- the adapted design reduces the risk that the housing will warp due to thermal stress or mechanical stress.
- each latching element is provided with an inclined surface.
- each latching element is provided with an inclined surface.
- the locking element is connected to the housing via an elastic connecting web.
- the locking projection automatically snaps back into its original position after it has been brought out of its original position and the cooktop component has engaged. If necessary, a possible excess of the hob component is compensated for by an elastic deformation of the connecting web. Therefore, hob components that are manufactured with larger manufacturing tolerances can be securely held by the locking element.
- a unit preassembled at the factory can be produced in a simple manner without fear of the inductor carrier being displaced in the housing.
- the hob components are fixed in a simple manner in the vertical direction. Manufacturing tolerances can be compensated for by the elastic pressure against the inductor carrier. It also ensures that the inductor is positioned in contact with the underside of the hob plate.
- Another advantage of the invention is the ease of assembly when moving the inductor support between the assembly position and the operating position or during assembly or disassembly.
- the housing is given increased functionality and an additional air baffle is saved within the housing.
- FIG. 1 shows a perspective view of the housing which surrounds the plate and the induction elements of the hob of the example of the present document.
- Figure 2 shows a partial sectional view of the hob, which is designated in Figure 1, in its arrangement on the corresponding worktop.
- Figure 3 shows a leaf spring with a bearing body in its interior, which is used in the example of the invention.
- Figure 4 shows a perspective view of the housing of Figure 1 when the plate and induction elements are housed therein.
- FIG. 5 shows a detail of the hob of the present example, in which, in addition to other elements, locking elements, a cable holder and a predetermined separation point can be seen.
- Figure 6 shows a section according to section A-A, which is designated in the previous Figure 5.
- Figure 7 shows a section of the cable holder, which is designated in the previous Figure 5.
- FIG. 8 schematically represents an assembly position (I) and an operating position (II) in the hob of the present example.
- FIG. 9 shows a perspective view of some locking elements in the hob of the present example.
- Figure 10 shows a perspective view of a blower and some cooling air baffles.
- FIG. 11 shows a side view of functional elements for holding an electronic board.
- Figure 12 shows a bird's eye view of functional elements for strain relief of cables of different diameters.
- Figure 13 shows the housing with two integrally formed plastic profile parts of the housing base.
- FIG. 14 shows a cooktop frame with an integral plastic profile part of the housing base.
- the induction hob of this embodiment has a housing 1 and a housing base 3 and laterally raised side walls 5; the hob belongs to those that have a glass ceramic plate 7 with induction elements 23 underneath it.
- the shape and the material thickness of the housing 1 could obviously vary according to the requirements in other exemplary embodiments.
- Functional elements are provided, such as the bearing journal 11, the latching elements 19, the cable brackets 35, the latching element 47 and the cooling air guide walls 57. These functional elements make it possible to reduce the number of components.
- the cable holder 35 is integrally connected to the housing 1 via a predetermined separation point 37. After the element 35 has been separated, the functional element 35 is clamped and / or screwed to the housing 1 at the designated point 37.
- the functional element (19, 47) is designed as a latching element with which at least one cooktop component, for example an inductor support 21, a cooling air blower 55 or an electronic control device 43, is detachably fastened in the housing 1.
- this functional element (19, 47) has a run-up slope 34, along which the cooktop component is guided into a snap-in connection with this element.
- the locking element (19, 47) is connected to the housing 1 via a spring-elastic connecting web 30.
- a side stop 33 is formed on the multiple latching element (19, 47) and is in contact with the inductor carrier 21 in parallel with the plate 7 for the fixed mounting of the inductor carrier 21.
- This element (19, 47) has a height stop 31 with which the height position of the hob component in the housing 1 is fixed.
- the locking element 19 is assigned a compression spring 29 which presses the inductor support 21 against the height stop 31 with a spring force directed towards the hob plate 7.
- the hob plate 7 When the hob plate 7 is installed, it presses the inductor support 21 into a second operating position II below the mounting position I.
- the side stop 33 of the latching element 19 guides the inductor support 21 vertically when moving between the mounting position I and the operating position II or during assembly or disassembly.
- the designated functional element is designed as a bearing element 11 for mounting the hob 7 in a section of a worktop 10.
- the functional element in question is designed as an air guide wall 57 for a cooling air flow.
- cooling air inlet 51 and a cooling air outlet 53 can be seen in the figures.
- FIG. 11 shows a side view of functional elements 47, 48 for holding an electronic board 43.
- the functional element 47 on the right-hand side holds the electronic board 43 under a latch 58 of the functional element 47.
- the electronics board 43 is clamped on the left-hand side by a spring-elastic pin 59 of the functional element 48, which can be moved from its rest position against the direction of the arrow shown to insert the electronics board 43. If the electronics board 43 is inserted, the resilient pin 59 snaps back into its rest position in the direction of the arrow and thus clamps the electronics board 43 in position.
- FIG. 12 functional elements 60, 61, 62 for strain relief of cables 41, 42 of different diameters are shown in a bird's eye view.
- the cables 41, 42 can be inserted into the housing 1 through an opening in the side wall 5 of the plastic profile part 2.
- a cable 41 with a small diameter is guided into a gap 63 which is formed by an elastic side wall 65 of the functional element 60 and by an elastic side wall 66 of the functional element 61.
- a cable 42 with a larger diameter is guided into a gap 64 which is formed by an elastic side wall 67 of the functional element 61 and by an elastic side wall 68 of the functional element 62.
- the housing 1 with two integrally formed plastic profile parts 2 of the housing base 3 is shown in FIG.
- the two plastic profile parts 2 are fastened to a cooktop frame 4 with fastening elements which are formed on each of the plastic profile parts 2.
- the plastic profile parts 2 are screwed to the hob frame 4, so that both can be detached from each other. This makes it easier to replace defective parts.
- Figure 14 shows an embodiment of the invention which can be used for mixed hobs, i.e. for hobs which, in addition to at least one hotplate with inductors, also has at least one hotplate with another type of heating, such as a gas hob or a radiant heat source.
- the one-piece plastic profile part 2 is fastened to the cooktop frame 4 in such a way that the cooktop frame 4 also comprises a separate area 8 for the cooktop of the other heating type.
- a housing base part made of metal can be fastened to the hob frame 4 (not shown) and can withstand the temperature load from the radiant heat source.
- the housing base part made of metal is advantageously thermally insulated from the plastic profile part 2 in order to prevent damage to the plastic profile part at high temperatures of the radiation heat source.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Induction Heating Cooking Devices (AREA)
- Surgical Instruments (AREA)
- Dry Shavers And Clippers (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Cookers (AREA)
- Gas Burners (AREA)
- Gear Processing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200203049 | 2002-12-20 | ||
| ES200203049A ES2223258B1 (en) | 2002-12-20 | 2002-12-20 | INDUCTION COOK. |
| PCT/EP2003/006594 WO2004060020A1 (en) | 2002-12-20 | 2003-06-23 | Induction hob |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1579731A1 true EP1579731A1 (en) | 2005-09-28 |
| EP1579731B1 EP1579731B1 (en) | 2006-08-16 |
Family
ID=32669116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03735665A Expired - Lifetime EP1579731B1 (en) | 2002-12-20 | 2003-06-23 | Induction hob |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7274008B2 (en) |
| EP (1) | EP1579731B1 (en) |
| AT (1) | ATE336877T1 (en) |
| AU (1) | AU2003238030A1 (en) |
| DE (1) | DE50304692D1 (en) |
| ES (2) | ES2223258B1 (en) |
| WO (1) | WO2004060020A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2975289A3 (en) * | 2014-07-04 | 2016-09-14 | BSH Hausgeräte GmbH | Hotplate device |
| EP3285009A1 (en) * | 2016-08-16 | 2018-02-21 | Electrolux Appliances Aktiebolag | Pressing element and induction hob comprising a pressing element |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100705260B1 (en) | 2005-12-08 | 2007-04-09 | 엘지전자 주식회사 | Electric cooker |
| ES2328540B1 (en) * | 2006-08-07 | 2010-09-06 | Bsh Electrodomesticos España, S.A. | HEATING UNIT HOLDING DEVICE. |
| DE202007001432U1 (en) * | 2007-01-22 | 2007-03-29 | E.G.O. Elektro-Gerätebau GmbH | Cooking hob has bearing plate for heating installation and control housing for electronics, connected together using hook on one part put in corresponding recess on other part and then moved relative to each other |
| ES2335558B1 (en) * | 2007-04-13 | 2011-01-04 | Bsh Electrodomesticos España, S.A. | DEVICE WITH A COOKING FIELD HOUSING. |
| US20110088680A1 (en) * | 2008-03-11 | 2011-04-21 | Panasonic Corporation | Heating cooker |
| WO2009157844A1 (en) * | 2008-06-24 | 2009-12-30 | Aktiebolaget Electrolux | Cooking table |
| TWI367719B (en) * | 2009-03-02 | 2012-07-01 | Delta Electronics Inc | Electric device and circling dissipating system using the same |
| ES2412104B1 (en) | 2011-03-10 | 2014-05-21 | BSH Electrodomésticos España S.A. | Support plate for a circuit support of a domestic appliance, arrangement with such a support plate, and induction cooktop with an arrangement |
| ITVE20110024A1 (en) * | 2011-04-21 | 2012-10-22 | Meneghetti S P A Unipersonale | STOVE |
| DE102012219264A1 (en) * | 2011-11-22 | 2013-05-23 | BSH Bosch und Siemens Hausgeräte GmbH | Home appliance device |
| DE102012217059A1 (en) * | 2012-09-21 | 2014-03-27 | E.G.O. Elektro-Gerätebau GmbH | Housing part for a hob and hob |
| ITTO20120896A1 (en) | 2012-10-15 | 2014-04-16 | Indesit Co Spa | INDUCTION HOB |
| US10605464B2 (en) | 2012-10-15 | 2020-03-31 | Whirlpool Corporation | Induction cooktop |
| USD787041S1 (en) | 2015-09-17 | 2017-05-16 | Whirlpool Corporation | Gas burner |
| US10837651B2 (en) | 2015-09-24 | 2020-11-17 | Whirlpool Corporation | Oven cavity connector for operating power accessory trays for cooking appliance |
| US11777190B2 (en) | 2015-12-29 | 2023-10-03 | Whirlpool Corporation | Appliance including an antenna using a portion of appliance as a ground plane |
| ES2633514B1 (en) * | 2016-03-21 | 2018-07-04 | Bsh Electrodomésticos España, S.A. | COOKING FIELD DEVICE |
| US10145568B2 (en) | 2016-06-27 | 2018-12-04 | Whirlpool Corporation | High efficiency high power inner flame burner |
| JP6851012B2 (en) * | 2016-09-15 | 2021-03-31 | パナソニックIpマネジメント株式会社 | Induction heating cooker |
| US10551056B2 (en) | 2017-02-23 | 2020-02-04 | Whirlpool Corporation | Burner base |
| US10451290B2 (en) | 2017-03-07 | 2019-10-22 | Whirlpool Corporation | Forced convection steam assembly |
| US10660162B2 (en) | 2017-03-16 | 2020-05-19 | Whirlpool Corporation | Power delivery system for an induction cooktop with multi-output inverters |
| EP3432682A1 (en) | 2017-07-18 | 2019-01-23 | Whirlpool Corporation | Method for operating an induction cooking hob and cooking hob using such method |
| US10993292B2 (en) | 2017-10-23 | 2021-04-27 | Whirlpool Corporation | System and method for tuning an induction circuit |
| EP3544374B1 (en) | 2018-03-23 | 2020-09-23 | Whirlpool Corporation | Induction cooktop with improved magnetic flux concentrating foil |
| EP3544376B1 (en) | 2018-03-23 | 2020-08-26 | Whirlpool Corporation | Connection interface for induction coil array |
| EP3544375B1 (en) | 2018-03-23 | 2024-05-08 | Whirlpool Corporation | Induction coil compression apparatus for beam assembly |
| EP3544377B1 (en) | 2018-03-23 | 2020-08-05 | Whirlpool Corporation | Temperature sensor compression features for induction cooktop assembly |
| US12302478B2 (en) | 2018-04-23 | 2025-05-13 | Whirlpool Corporation | Control circuits and methods for distributed induction heating devices |
| US11140751B2 (en) | 2018-04-23 | 2021-10-05 | Whirlpool Corporation | System and method for controlling quasi-resonant induction heating devices |
| US10627116B2 (en) | 2018-06-26 | 2020-04-21 | Whirlpool Corporation | Ventilation system for cooking appliance |
| US10619862B2 (en) | 2018-06-28 | 2020-04-14 | Whirlpool Corporation | Frontal cooling towers for a ventilation system of a cooking appliance |
| US10837652B2 (en) | 2018-07-18 | 2020-11-17 | Whirlpool Corporation | Appliance secondary door |
| EP4012267A1 (en) * | 2020-12-11 | 2022-06-15 | BSH Hausgeräte GmbH | Domestic appliance and method for installing same |
| KR20220165594A (en) * | 2021-06-08 | 2022-12-15 | 엘지전자 주식회사 | Electric range |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4549052A (en) * | 1984-01-12 | 1985-10-22 | The Maytag Company | Cooling system for an induction cooking cartridge |
| ES2022003A6 (en) * | 1990-03-28 | 1991-11-16 | Balay Sa | Connection system between the ceramic glass and the fastening frame to the top surface. |
| FR2726961B1 (en) * | 1994-11-15 | 1996-12-06 | Europ Equip Menager | TEMPERATURE PROTECTED INDUCER COOKING FIREPLACE |
| DE19604436A1 (en) | 1996-02-07 | 1997-08-14 | Bosch Siemens Hausgeraete | Inductor for installation in trough-like plate for heater in domestic equipment |
| ES2146533B1 (en) * | 1998-02-12 | 2001-03-01 | Balay Sa | INDUCTOR ASSEMBLY FOR COOKING. |
-
2002
- 2002-12-20 ES ES200203049A patent/ES2223258B1/en not_active Expired - Fee Related
-
2003
- 2003-06-23 WO PCT/EP2003/006594 patent/WO2004060020A1/en not_active Ceased
- 2003-06-23 ES ES03735665T patent/ES2270050T3/en not_active Expired - Lifetime
- 2003-06-23 AU AU2003238030A patent/AU2003238030A1/en not_active Abandoned
- 2003-06-23 DE DE50304692T patent/DE50304692D1/en not_active Expired - Lifetime
- 2003-06-23 AT AT03735665T patent/ATE336877T1/en not_active IP Right Cessation
- 2003-06-23 US US10/539,542 patent/US7274008B2/en not_active Expired - Fee Related
- 2003-06-23 EP EP03735665A patent/EP1579731B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004060020A1 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2975289A3 (en) * | 2014-07-04 | 2016-09-14 | BSH Hausgeräte GmbH | Hotplate device |
| EP3285009A1 (en) * | 2016-08-16 | 2018-02-21 | Electrolux Appliances Aktiebolag | Pressing element and induction hob comprising a pressing element |
| WO2018033371A1 (en) * | 2016-08-16 | 2018-02-22 | Electrolux Appliances Aktiebolag | Pressing element and induction hob comprising a pressing element |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004060020A1 (en) | 2004-07-15 |
| EP1579731B1 (en) | 2006-08-16 |
| ATE336877T1 (en) | 2006-09-15 |
| DE50304692D1 (en) | 2006-09-28 |
| US20060163244A1 (en) | 2006-07-27 |
| US7274008B2 (en) | 2007-09-25 |
| AU2003238030A1 (en) | 2004-07-22 |
| ES2223258B1 (en) | 2006-04-16 |
| ES2270050T3 (en) | 2007-04-01 |
| ES2223258A1 (en) | 2005-02-16 |
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