EP3768132A1 - Griller or sandwich maker plate with removable plates of high performance and temperature uniformity - Google Patents

Griller or sandwich maker plate with removable plates of high performance and temperature uniformity

Info

Publication number
EP3768132A1
EP3768132A1 EP19722940.4A EP19722940A EP3768132A1 EP 3768132 A1 EP3768132 A1 EP 3768132A1 EP 19722940 A EP19722940 A EP 19722940A EP 3768132 A1 EP3768132 A1 EP 3768132A1
Authority
EP
European Patent Office
Prior art keywords
ribs
heating element
plate
heat
array
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Withdrawn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
EP19722940.4A
Other languages
German (de)
French (fr)
Inventor
Vasileios Mavridis
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3768132A1 publication Critical patent/EP3768132A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A47J37/0611—Roasters; Grills; Sandwich grills the food being cooked between two heating plates, e.g. waffle-irons
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A47J37/067—Horizontally disposed broiling griddles
    • A47J37/0676—Horizontally disposed broiling griddles electrically heated
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • 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

Definitions

  • the invention relates to the structural configuration (details design) of the griller or sandwich maker grilling plate with removable plates, so that the losses are reduced and the appliance performance is improved, while at the same time reducing its non- uniformities resulting from the configuration of the heating element.
  • the heating element is typically located at a distance from the appliance grilling plate, and the energy is transferred to it by radiation.
  • These components are generally called reflectors.
  • the heat transfer from the heating elements through radiation is directed partly to the appliance grilling plate and partly (quite important) to the environment (the appliance’s sides or interior).
  • the reflectors in which the heating elements are assembled, are made of reflective materials and are suitably configured, so that the radiant heat returns as far as possible to the grilling plate.
  • ribs are sometimes placed on the appliance plate (on the path of heating element) to increase the heat absorption and lessen the losses inside the appliance.
  • these ribs by locally concentrating high temperature, create non- uniformities in the grilling plate temperature and, hence, there is no homogeneous grilling.
  • part of the heat is locally re-radiated towards the outside environment.
  • the present invention on the one hand, there is an increase in heat absorption and a reduction of losses on the outside of the appliance by using a collecting ribs (8) array on the outside of the heating element contour without causing excessive temperature increases in the grilling plate.
  • a collecting ribs (8) array on the outside of the heating element contour without causing excessive temperature increases in the grilling plate.
  • the external ribs array consists of two or more ribs of different height, so that each collects part of the heating element radiation. Therefore, the heat is not released to the environment and no overheating occurs.
  • the assembly of the collecting ribs array (8) is dimensioned such that the first is shorter than the next (s) to collect only part of the radiant heat (the horizontally directed radiation), and the next(s) is (are) longer to collect the remaining escaped radiation.
  • the internal temperature balancing ribs (9) collect locally radiant heat only at points, where lower temperatures are observed, in order to homogenise the plate
  • Figure 1 shows a longitudinal sectional view of the constructional details of a griller, as well as the constructional design of the plate with the collecting ribs (8) and balancing ribs (9), so that the appliance efficiency is improved while saving energy.
  • the appliance heating element (2) On the reflector (1) surface the appliance heating element (2) is located.
  • the assembly of these two components is mounted onto the appliance upper (3) or lower (4) bodies (griller).
  • the grilling plates (5) are placed by the user over the assembly of these two components using the supports (6), (7) at the front and back respectively of the appliance upper or lower body. This support allows the user to easily remove or place them, so that it is easy to clean them after use.
  • the same figure shows the details of the plate with the arrays of the peripheral temperature collecting ribs (8), as well as of the temperature balancing ribs (9), which improve the uniformity of the low temperature regions.
  • Figure 2 shows the components involved in this structure in a cross-sectional way.
  • Figure 3 shows a plate form with collecting (8) and balancing ribs (9), which, as discussed above, lessen the appliance losses and improve its performance.
  • Figure 4 shows a detail of Figure 1, so that the structure of the collecting ribs array (8) is distinct.
  • Figure 5 shows a detail of Figure 2, so that the structure of the collecting ribs (8) and balancing ribs array (9) is distinct.

Abstract

It consists of an array of two or more ribs perpendicular to the back side of the plate, collecting ribs (8) outside the heating element contour to collect the heating escaped from the sides either directly irradiated or reflected in the appliance reflector. The balancing ribs (9) are located inside the heating element contour in low temperature regions and absorb the diffuse radiation of the heating elements, raising the temperature to them.

Description

Griller or sandwich maker plate with removable plates of high performance and temperature uniformity
The invention relates to the structural configuration (details design) of the griller or sandwich maker grilling plate with removable plates, so that the losses are reduced and the appliance performance is improved, while at the same time reducing its non- uniformities resulting from the configuration of the heating element.
Regarding grillers with removable plates, the heating element is typically located at a distance from the appliance grilling plate, and the energy is transferred to it by radiation. These components (on which the heating element is mounted) are generally called reflectors.
Due to the way the appliances are manufactured, the heat transfer from the heating elements through radiation is directed partly to the appliance grilling plate and partly (quite important) to the environment (the appliance’s sides or interior).
In order to reduce the extent of the losses, the reflectors, in which the heating elements are assembled, are made of reflective materials and are suitably configured, so that the radiant heat returns as far as possible to the grilling plate.
Also according to the earlier invention of the same inventor, it is possible to reduce the losses by using a double reflector. The construction, according to this invention, limits the radiant heat inside the appliance.
To further reduce losses, ribs are sometimes placed on the appliance plate (on the path of heating element) to increase the heat absorption and lessen the losses inside the appliance. However, these ribs, by locally concentrating high temperature, create non- uniformities in the grilling plate temperature and, hence, there is no homogeneous grilling. At the same time due to the high temperature of the plate, part of the heat is locally re-radiated towards the outside environment.
According to the present invention, on the one hand, there is an increase in heat absorption and a reduction of losses on the outside of the appliance by using a collecting ribs (8) array on the outside of the heating element contour without causing excessive temperature increases in the grilling plate. On the other hand, there is an increase in temperature uniformity with the addition of temperature balancing ribs (9) in the inside, in the points where the heating element shape does not provide the appropriate radiation amount.
The external ribs array consists of two or more ribs of different height, so that each collects part of the heating element radiation. Therefore, the heat is not released to the environment and no overheating occurs. The assembly of the collecting ribs array (8) is dimensioned such that the first is shorter than the next (s) to collect only part of the radiant heat (the horizontally directed radiation), and the next(s) is (are) longer to collect the remaining escaped radiation.
Since the radiant heat to the sides is collected from more than one rib, no overheating is observed. The difference in rib height as well as the significant increase in the heat exchange area on the appliance sides (due to the ribs) contribute to this.
The internal temperature balancing ribs (9) collect locally radiant heat only at points, where lower temperatures are observed, in order to homogenise the plate
temperatures.
Figure 1 shows a longitudinal sectional view of the constructional details of a griller, as well as the constructional design of the plate with the collecting ribs (8) and balancing ribs (9), so that the appliance efficiency is improved while saving energy. On the reflector (1) surface the appliance heating element (2) is located. The assembly of these two components is mounted onto the appliance upper (3) or lower (4) bodies (griller). The grilling plates (5) are placed by the user over the assembly of these two components using the supports (6), (7) at the front and back respectively of the appliance upper or lower body. This support allows the user to easily remove or place them, so that it is easy to clean them after use.
The same figure shows the details of the plate with the arrays of the peripheral temperature collecting ribs (8), as well as of the temperature balancing ribs (9), which improve the uniformity of the low temperature regions.
Figure 2 shows the components involved in this structure in a cross-sectional way.
Figure 3 shows a plate form with collecting (8) and balancing ribs (9), which, as discussed above, lessen the appliance losses and improve its performance.
Figure 4 shows a detail of Figure 1, so that the structure of the collecting ribs array (8) is distinct. Figure 5 shows a detail of Figure 2, so that the structure of the collecting ribs (8) and balancing ribs array (9) is distinct.

Claims

1. It consists of an array of ribs perpendicular to the back side of the plate outside the heating element contour, so that the radiant heat from the heating elements is trapped and is not released to the environment. The array ribs having different heights absorb a small amount of heat each. Therefore, the plate does not overheat at these points. At the same time, in the regions, where the temperature inside the heating elements contour has to be raised, the balancing ribs are added to help increase locally the temperature by absorbing the diffuse heating element radiation.
2. The two ribs (interior, exterior), according to claim 1, may be of the same or different length, depending on the heat that the appliance heating element emits in the region.
3. The array of two ribs, according to claims 1 & 2, may consist of three ribs of different height of same or different length, depending on the heat that the heating element emits in the corresponding plate region.
EP19722940.4A 2018-03-19 2019-03-13 Griller or sandwich maker plate with removable plates of high performance and temperature uniformity Withdrawn EP3768132A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR20180100112A GR1009571B (en) 2018-03-19 2018-03-19 A roasting plate for toast makers or sandwich toast makers having removable plates characterised by high performance and temperature uniformity
PCT/GR2019/000020 WO2019180467A1 (en) 2018-03-19 2019-03-13 Griller or sandwich maker plate with removable plates of high performance and temperature uniformity

Publications (1)

Publication Number Publication Date
EP3768132A1 true EP3768132A1 (en) 2021-01-27

Family

ID=66448589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19722940.4A Withdrawn EP3768132A1 (en) 2018-03-19 2019-03-13 Griller or sandwich maker plate with removable plates of high performance and temperature uniformity

Country Status (3)

Country Link
EP (1) EP3768132A1 (en)
GR (1) GR1009571B (en)
WO (1) WO2019180467A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB785292A (en) *
US2237094A (en) * 1940-02-02 1941-04-01 Mcgraw Electric Co Waffle baker
DE20023695U1 (en) * 1980-03-27 2005-09-01 Wik Far East Ltd. Multipurpose reversible cooking appliance for homes, has ribbed and smooth cooking surfaces provided respectively on either sides of hot plate with integral heater
JPH05251170A (en) * 1992-03-06 1993-09-28 Matsushita Electric Ind Co Ltd Induction heating cooker
DE19924299B4 (en) * 1999-05-27 2008-06-12 BSH Bosch und Siemens Hausgeräte GmbH electric grill
EP1648275B1 (en) * 2003-06-30 2008-10-22 Conair Corporation Reversible cooking appliance
US20070277678A1 (en) * 2006-05-17 2007-12-06 Joy Mangano Multifunction electric cooker
KR100983199B1 (en) * 2008-06-20 2010-09-20 김영준 Electric roaster
US20170290101A1 (en) * 2016-03-30 2017-10-05 Wal-Mart Stores, Inc. Cooking system

Also Published As

Publication number Publication date
WO2019180467A1 (en) 2019-09-26
GR1009571B (en) 2019-08-12

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