EP1201998A1 - Four de cuisson - Google Patents

Four de cuisson Download PDF

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Publication number
EP1201998A1
EP1201998A1 EP00123206A EP00123206A EP1201998A1 EP 1201998 A1 EP1201998 A1 EP 1201998A1 EP 00123206 A EP00123206 A EP 00123206A EP 00123206 A EP00123206 A EP 00123206A EP 1201998 A1 EP1201998 A1 EP 1201998A1
Authority
EP
European Patent Office
Prior art keywords
cavity
cooking oven
sub
oven according
oven
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
EP00123206A
Other languages
German (de)
English (en)
Other versions
EP1201998B1 (fr
Inventor
Riccardo c/o Whirlpool Europe s.r.l. Allera
Giovanni c/o Whirlpool Europe s.r.l. Franzetti
Marco c/o Whirlpool Europe s.r.l. Maritan
Salvatore c/o Whirlpool Europe s.r.l. Sanna
Massimo c/o Whirlpool Europe s.r.l. Maroni
David c/o Whirlpool Europe s.r.l. Ward
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.)
Whirlpool Corp
Original Assignee
Whirlpool Corp
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 Whirlpool Corp filed Critical Whirlpool Corp
Priority to ES00123206T priority Critical patent/ES2255935T3/es
Priority to EP20000123206 priority patent/EP1201998B1/fr
Priority to DE2000626421 priority patent/DE60026421T2/de
Priority to BRPI0104740-0A priority patent/BR0104740B1/pt
Priority to US10/043,967 priority patent/US6545251B2/en
Publication of EP1201998A1 publication Critical patent/EP1201998A1/fr
Application granted granted Critical
Publication of EP1201998B1 publication Critical patent/EP1201998B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24C15/16—Shelves, racks or trays inside ovens; Supports therefor
    • F24C15/166—Shelves, racks or trays inside ovens; Supports therefor with integrated heating means
    • 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
    • F24C15/16—Shelves, racks or trays inside ovens; Supports therefor
    • 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
    • F24C7/06—Arrangement or mounting of electric heating elements

Definitions

  • the present invention concerns a cooking oven comprising a cavity. It is well known that energy saving is an imperative for all the devices which consume energy and therefore contribute to environment pollution and/or greenhouse effect. This applies to domestic appliances too, and particularly to domestic appliances using high level of energy like electric cooking ovens. It is an object of the present invention to provide an oven with a cavity that improves oven performance (efficiency and effectiveness), provides greater flexibility in use, improved quality of cooking and better cleanability by means of a flexible heating system.
  • the oven comprises heating elements placed vertically on side walls of the cavity, in addition to traditional heating elements placed horizontally on top and bottom walls.
  • the concept is applicable to pyrolitic and non-pyrolitic ovens, and includes also the solution according to which the oven cavity does not have the traditional heating elements placed horizontally on top and/or bottom walls.
  • the use of the separating and insulating plate and of the heating elements according to the invention allows improved energy efficiency due to flexibility in use and optimisation of heat transfer. Moreover it reduces cooking cycle times (effectiveness) due to smaller cavity and improved energy efficiency.
  • the oven cavities of the oven according to the present invention can be run in static and convective modes singularly or separately. This increases flexibility in use.
  • the reduced dimension of the sub-cavities and/or the use of heating elements placed on side walls of the cavity improve temperature uniformity in cavity.
  • the inclusion of a rotating table on the separating plate improves browning, crisping, heat distribution and hence improves efficiency (time and energy saving) and effectiveness (cooking results).
  • an oven 10 comprises a cavity 12 having four heating elements 14, two for each side 12a of the oven cavity, which are housed in flat plates 16.
  • Two flat plates 16 are located at each side 12a of the cavity and connected electrically through the back plate of the oven.
  • the flat plates 16 are vertically separated in order to form an horizontal slot or guide G in which is slidably inserted a shelf-shaped separating plate 18 that splits the cavity 12 in two sub-cavities 12b and 12c.
  • the separating plate 18 has thermal insulating properties and is provided with a silicone seal (not shown) in the front portion thereof in order to seal the front wall of the cavity i.e. the oven door.
  • each flat plate 16 consists of a tubular resistance element 13 cast in a suitably shaped light alloy e.g. aluminium.
  • each flat heating element 14 consists of a tubular resistance element 13 clamped to a suitably shaped thin metallic (e.g. steel) plate 16 (figure 3).
  • Each metallic plate 16 has an horizontal central ridge 16a which is used for slidably supporting food trays or grills.
  • the oven cavity comprises four rectangular openings 20 on its side walls in which radiant heating elements or heaters 22 are placed, two for each side.
  • a dark Ceran® glass 24 fitted so as to protect the heater ribbon 25 from the splattering of food etc. and also filters both visible and I.R. heat.
  • the heaters 22 are mounted flush to the cavity wall and are therefore installed on the outside of the cavity 12. Heat is therefore transmitted from the heater to/through the glass 24 and then into the cavity 12 via radiation and convection. Some conduction is also afforded from the glass to part of the cavity side wall 12a.
  • the separating plate 18 is supported by L-shaped rails 28 fixed to the side wall 12a of the cavity 12 between each couple of openings 20.
  • the heater ribbon layout (figure 5) is optimised to improve heat distribution in the cavity and thus cooking performance.
  • the shape of the ribbon 25 is similar to a "dickey bow” in which the heat distributed is favoured towards the edges 25a (more exposed ribbon area) rather than centre 25b (less exposed ribbon area).
  • the installed power for each side wall heater is preferably between 250 W to 1500 W. This power is added to the power of standard grill and lower heating elements.
  • the oven according to the present invention can be used in a standard mode, without the separating plate 18.
  • the oven can be used as a standard oven (static and/or lower element) or together with the four side heating elements 14 or 22.
  • performance e.g. cooking results
  • the standard radial heater configuration circular heater around fan
  • the separating plate 18 is used to split the oven cavity 12 thus providing three further modes of operation:
  • the separating and insulating plate 18 is provided so as to isolate and insulate the two sub-cavities 12b and 12c. This is done by carefully sizing the separating plate 18 to match the cavity interior profile (incl. oven door) and using a silicone rubber seal (not shown) fitted on the front of the separating plate 18. When in use this latter sits on a suitable ledge defined by the heating elements 14 or by the rails 28.
  • the temperature control and sensor of the lower sub-cavity 12c is enabled e.g. through a micro-switch (not shown) fitted at the rear of the oven cavity 12.
  • the separating plate 18 splits the cavity volume in half, i.e. it provides the two sub-activities. Although the separating plate 18 can be removed when installed, its position is preferably fixed.
  • typical warm-up times are at least 30% less than the standard mode (in which the separating plate 18 is removed), thus providing greater flexibility in time management.
  • Typical cooking performance is at least 20% better (less) than the standard oven for the same food or dish. This performance improvement leads to lower energy consumption, lower cooking times, and greater flexibility in use.
  • the oven can be provided with a turntable or rotating table 30 rotatably supported by the separating plate 18.
  • This consists of a rotating table driven directly by an electric spit roast motor through a mechanical coupling 32.
  • This accessory is especially useful for further improving cooking performance, better browning and crisping and avoids the need to turn (rotate) the food during cooking.
  • the accessory comprises a drive motor located outside the cavity (not shown), a flexible drive shaft 34 having a end with a toothed gear 34a and a dish or table 36 equipped with gear teeth on its underside.
  • the drive mechanism can be either direct with a solid shaft or direct with a flexible shaft (as shown in figure 6).
  • the drive is connected to the rotating table 30 which can be made part of the above mentioned separating plate 18.
  • a second rotating plate 40 is shown on the bottom wall of the oven.
  • the oven according to the invention is provided with twin standard controls (not shown).
  • a possible configuration of the control panel of the oven has a right hand control for the standard mode and for the upper sub-cavity mode and a lefthand control for the lower sub-cavity mode.

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)
  • Baking, Grill, Roasting (AREA)
EP20000123206 2000-10-26 2000-10-26 Four de cuisson Expired - Lifetime EP1201998B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES00123206T ES2255935T3 (es) 2000-10-26 2000-10-26 Horno de cocina.
EP20000123206 EP1201998B1 (fr) 2000-10-26 2000-10-26 Four de cuisson
DE2000626421 DE60026421T2 (de) 2000-10-26 2000-10-26 Backröhre
BRPI0104740-0A BR0104740B1 (pt) 2000-10-26 2001-10-24 forno de cozimento.
US10/043,967 US6545251B2 (en) 2000-10-26 2001-10-26 Cooking oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20000123206 EP1201998B1 (fr) 2000-10-26 2000-10-26 Four de cuisson

Publications (2)

Publication Number Publication Date
EP1201998A1 true EP1201998A1 (fr) 2002-05-02
EP1201998B1 EP1201998B1 (fr) 2006-03-08

Family

ID=8170201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000123206 Expired - Lifetime EP1201998B1 (fr) 2000-10-26 2000-10-26 Four de cuisson

Country Status (3)

Country Link
EP (1) EP1201998B1 (fr)
DE (1) DE60026421T2 (fr)
ES (1) ES2255935T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100757120B1 (ko) * 2005-07-25 2007-09-10 엘지전자 주식회사 전기 오븐
EP1288580B1 (fr) * 2001-08-29 2009-04-15 Whirlpool Corporation Four de cuisson
CN109803535A (zh) * 2016-10-07 2019-05-24 拜平·普拉巴卡尔·德施潘德 烤箱系统
CN109998368A (zh) * 2019-04-18 2019-07-12 浙江帅康电气股份有限公司 一种可分层独立工作的蒸箱
US10451290B2 (en) 2017-03-07 2019-10-22 Whirlpool Corporation Forced convection steam assembly

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011051246B4 (de) * 2011-06-22 2019-02-28 Miele & Cie. Kg Gargerät
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
US10660162B2 (en) 2017-03-16 2020-05-19 Whirlpool Corporation Power delivery system for an induction cooktop with multi-output inverters
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8508617U1 (de) * 1985-03-22 1985-05-09 Ross, Eckhard, 4044 Kaarst Einschiebbarer oder einlegbarer Backboden für einen Backofen
GB2152790A (en) * 1983-12-02 1985-08-07 Thorn Emi Domestic Appliances Additional heating in microwave ovens
GB2267339A (en) * 1992-05-27 1993-12-01 Licentia Gmbh Electric baking and roasting oven

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152790A (en) * 1983-12-02 1985-08-07 Thorn Emi Domestic Appliances Additional heating in microwave ovens
DE8508617U1 (de) * 1985-03-22 1985-05-09 Ross, Eckhard, 4044 Kaarst Einschiebbarer oder einlegbarer Backboden für einen Backofen
GB2267339A (en) * 1992-05-27 1993-12-01 Licentia Gmbh Electric baking and roasting oven

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1288580B1 (fr) * 2001-08-29 2009-04-15 Whirlpool Corporation Four de cuisson
KR100757120B1 (ko) * 2005-07-25 2007-09-10 엘지전자 주식회사 전기 오븐
CN109803535A (zh) * 2016-10-07 2019-05-24 拜平·普拉巴卡尔·德施潘德 烤箱系统
EP3522721A4 (fr) * 2016-10-07 2020-11-25 Deshpande, Bipin Prabhakar Système de four
US10451290B2 (en) 2017-03-07 2019-10-22 Whirlpool Corporation Forced convection steam assembly
CN109998368A (zh) * 2019-04-18 2019-07-12 浙江帅康电气股份有限公司 一种可分层独立工作的蒸箱

Also Published As

Publication number Publication date
EP1201998B1 (fr) 2006-03-08
DE60026421T2 (de) 2006-08-10
DE60026421D1 (de) 2006-05-04
ES2255935T3 (es) 2006-07-16

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