EP3176508B1 - Pan support device - Google Patents

Pan support device Download PDF

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Publication number
EP3176508B1
EP3176508B1 EP15197203.1A EP15197203A EP3176508B1 EP 3176508 B1 EP3176508 B1 EP 3176508B1 EP 15197203 A EP15197203 A EP 15197203A EP 3176508 B1 EP3176508 B1 EP 3176508B1
Authority
EP
European Patent Office
Prior art keywords
support device
frame part
pan support
pan
burner assembly
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.)
Active
Application number
EP15197203.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3176508A1 (en
Inventor
Massimo Banzato
Oscar Alberto SALAZAR
Giuseppe Lando
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 Appliances AB
Original Assignee
Electrolux Appliances AB
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
Priority to EP15197203.1A priority Critical patent/EP3176508B1/en
Application filed by Electrolux Appliances AB filed Critical Electrolux Appliances AB
Priority to ES15197203T priority patent/ES2729655T3/es
Priority to BR112018011034-5A priority patent/BR112018011034B1/pt
Priority to CN201680064007.7A priority patent/CN108351110B/zh
Priority to AU2016363483A priority patent/AU2016363483B2/en
Priority to US15/778,246 priority patent/US20180347824A1/en
Priority to PCT/EP2016/076627 priority patent/WO2017092966A1/en
Publication of EP3176508A1 publication Critical patent/EP3176508A1/en
Application granted granted Critical
Publication of EP3176508B1 publication Critical patent/EP3176508B1/en
Active 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
    • F24C15/107—Pan supports or grates therefor

Definitions

  • the present invention relates to a pan support device for a gas burner assembly of a gas cooking hob according to the preamble of claim 1. Further, the present invention relates to a gas burner assembly with a pan support device. Moreover, the present invention relates to a gas cooking hob.
  • a pan support device for a gas burner assembly of a gas cooking hob is provided for supporting a cooking utility above a flame of the gas burner assembly.
  • the pan support device is made of stainless steel, porcelain-coated cast iron, porcelain-coated steel, cast iron or chrome-plated steel.
  • the pan support device made of stainless steel is corrosion resistant and a long-life component, but is very expensive.
  • the pan support device made of porcelain-coated cast iron has similar properties as the pan support device made of stainless steel, but comprises thicker rods and is a heavier component.
  • the pan support device made of porcelain-coated steel is also very expensive.
  • the pan support device made of cast iron is usually for charcoal grills.
  • the pan support device made of cast iron must be covered with oil in order to protect it from corrosion.
  • the pan support device made of chrome-plated steel is very cheap, but is a short-life component.
  • US 2011/0095146 A1 discloses a pan support device comprising a first bar and one or more transverse bars. At the end of each bar a footing is attached, wherein said footing extends downwardly. The footing is fastened by a screw at the end of the bar.
  • a tubular shell of the footing may be made of stainless steel, aluminium or glass.
  • the bar may be made of cast iron.
  • a pan support device including a pan support frame. Said pan support frame forms a base. Further, the pan support frame includes portions bent upwards. From the tops of said portions horizontal protrusions extend inwardly and form the proper support area.
  • JP H07-190387 A discloses a pan support device formed as a polyangular ring extending in a three-dimensional domain.
  • Said polyangular ring is made of one sheet of a steel plate.
  • the polyangular ring is formed after having punched the steel plate.
  • the pan support device includes five lower portions and five upper portions.
  • pan support device according to claim 1.
  • the support part and the frame part form a single-piece part, wherein the support part is made of a metal matrix composite system including a metal matrix and a reinforcing material, and wherein the material of the metal matrix is aluminium, an aluminium alloy, magnesium or a magnesium alloy, and wherein the reinforcing material is a ceramic material.
  • the pan support device is a single-piece part consisting of the support part and the frame part, wherein the support part and the frame part are made of different materials.
  • the materials used for the pan support device allow a small weight, a suitable corrosion resistance and a high thermal conductivity.
  • the support part includes a grid.
  • the grid covers only a small part of the bottom of the cooking utensil.
  • the frame part includes a ring provided for enclosing the gas burner assembly.
  • the frame part is made of an aluminium alloy, in particular of an aluminium alloy 242.0.
  • the support part may be made of cast iron, in particular of cast iron of grade 25 ASTM.
  • the support part is made of a metal matrix composite system including a metal matrix and a reinforcing material, wherein the material of the metal matrix is aluminium, an aluminium alloy, magnesium or a magnesium alloy, while the reinforcing material is a ceramic material, in particular silicon carbide SiC or aluminium oxide Al 2 O 3 .
  • the frame part includes a circular ring and a plurality of vertical rods extending upward from said circular ring, wherein the support part is attached at the upper ends of said vertical rods.
  • the frame part includes four vertical rods and the support part is formed as a cross.
  • the frame part includes a polyangular ring extending in a three-dimensional domain and includes a number of lower portions and upper portions.
  • the support part may be attached at least at a part of the upper portions of the frame part, while at least at a part of the lower portions of the frame part may be provided as pedestals of the pan support device.
  • the frame part includes three lower portions and three upper portions, wherein the support part is formed as a three-pointed star and extends within one plane, and wherein preferably the outer ends of said three-pointed star are attached at the upper portions of the frame part.
  • the present invention relates to a gas burner assembly with a pan support device, wherein the gas burner assembly comprises a pan support device mentioned above.
  • the present invention relates to a gas cooking hob comprising at least one pan support device mentioned above. Novel and inventive features of the present invention are set forth in the appended claims. The present invention will be described in further detail with reference to the drawing, in which
  • FIG 1 illustrates a schematic perspective view of a pan support device 10 according to a first embodiment of the present invention.
  • the pan support device 10 is arranged above a gas burner assembly 16.
  • the pan support device 10 is formed as a single-piece part and comprises a support part 12 and a frame part 14.
  • the support part 12 forms an upper part of the pan support device 10, while the frame part 14 forms a lower part of said pan support device 10.
  • the frame part 14 includes a circular ring 18 and four vertical rods 20.
  • the circular ring 18 forms a base portion of the frame part 14.
  • the vertical rods 20 extend upward from the circular ring 18 and perpendicular to the plane of said circular ring 18.
  • the vertical rods 20 are equally distributed on the circular ring 18, i.e. the distances between neighboured vertical rods 20 are equal.
  • the support part 12 is formed as a cross. Each outer end of the support part 12 is connected to a corresponding upper end of the vertical rod 20.
  • the circular ring 18 is provided for the direct contact to a panel of the cooking hob, while the support part 12 is provided for the direct contact to the cooking utensil.
  • the circular ring 18 and the vertical rods 20 of the frame part 14 and the support part 12 have rectangular and/or square cross-sections.
  • the support part 12 is made of a cast metal alloy, for example cast iron of grade 25 ASTM.
  • the frame part 14 is made of a light metal alloy, for example an aluminium alloy 242.0.
  • the support part 12 or the frame part 14 is casted in a mould during a first cast step. Then, the mould is prepared for a second cast step. During the second cast step, the frame part 14 or the support part 12, respectively, is casted in the mould. Once the support part 12 and the frame part 14 are cooled down, they remain attached to each other without any further treatment. According to a second method the support part 12 and the frame part 14 are casted separately. The support part 12 and the frame part 14 are treated thermally in order to exploit the deformation as a result of the thermal expansion. Then, the support part 12 and the frame part 14 are assembled. When the support part 12 and the frame part 14 are cooled down, then a shrink fitting occurs.
  • the temperature at the contact points of the support part 12 and the flame is about 700°C, while the temperature of the flame is about 980°C.
  • the pan support device 10 of the first embodiment allows a significant weight reduction to about 70 % compared to conventional devices.
  • FIG 2 illustrates a schematic perspective view of the pan support device 10 according to a second embodiment of the present invention.
  • the pan support device 10 is arranged above the gas burner assembly 16.
  • the pan support device 10 comprises the support part 12 and the frame part 14.
  • the support part 12 forms the upper part of the pan support device 10, while the frame part 14 forms the lower part of said pan support device 10.
  • the frame part 14 of the second embodiment is a polyangular ring extending in a three-dimensional domain.
  • the frame part 14 includes three lower portions 22, three upper portions 24 and six intermediate portions 26.
  • the lower portions 22 of the frame part 14 are provided for the direct contact to the panel of the cooking hob, while the upper portions 24 of the frame part 14 are provided for a connection to the act to the support part 12.
  • the support part 12 is formed as a three-pointed star and extends within one plane. Each outer end of the support part 12 is in contact to one of the upper portions 24 of the frame part 14.
  • the support part 12 is provided for the direct contact to the cooking utensil.
  • the polyangular ring of the frame part 14 has a circular cross-section.
  • the support part 12 of the second embodiment is made of a metal matrix composite system.
  • the metal matrix composite system consists of a metal matrix and a reinforcing material.
  • the material of the metal matrix is aluminium, an aluminium alloy, magnesium or a magnesium alloy, while the reinforcing material is silicon carbide SiC or aluminium oxide Al 2 O 3 .
  • the metal matrix made of the materials mentioned above allows a lightweight support part 12.
  • the discontinuous ceramic reinforcing materials increase the performance of the matrix in terms of mechanical properties such as tensile strength and Young modulus. Further, the discontinuous ceramic reinforcing materials increase the performance of the matrix in terms of thermal properties, in particular the thermal conductivity.
  • the support part 12 of the second embodiment may be produced by fusion infiltration, extrusion, forging, die casting, gravity die casting and squeeze casting.
  • the frame part 14 is made of an aluminium alloy, so that the frame part 14 matches the support part 12 in view of the thermal expansion coefficient.
  • the matched thermal expansion coefficient allows the assembling of the support part 12 and the frame part 14 without any difficulty.
  • the support part 12 and the frame part 14 may be assembled by screwing, snapping and/or gluing.
  • the support part 12 and the frame part 14 may be assembled either temporarily or permanently.
  • the support part 12 and the frame part 14 may be assembled by the user or a technician.
  • the temperature at the contact points of the support part 12 and the flame is about 700°C, while the temperature of the flame is about 980°C. These temperatures are above the melting temperatures of the materials of the metal matrix. With a suitable thermal conductivity, cross-section and geometric shape, the support part 12 reaches a temperature of about 450°C, which is clearly below the melting temperature.
  • the metal matrix composite system of the support part 12 has a thermal conductivity of about 160 W/(m*K), which is about three times higher than the thermal conductivity of cast iron being about 46 W/(m*K).
  • the density of the metal matrix composite system is about 3.5 g/cm 3 , while the density of the cast iron is about 7.2 g/cm 3 .
  • the yield stress limit of the metal matrix composite system is about 290 MPa, while the yield stress limit of cast iron is about between 100 MPa and 130 MPa.
  • the pan support device 10 according to the present invention allows a higher efficiency of the gas burner assembly, since the heat transfer from the flames of said gas burner assembly to the cooking vessel is improved.
  • the user can easier handle the pan support device 10 of the present invention, since the weight of said pan support device 10 is relative lightweight.
  • the inventive pan support device 10 is corrosion resistant.
  • the pan support device 10 according to the present invention allows an increased flexibility of the parameters for the design of the gas cooking hob. For example, the heat distribution, the layout of the gas burner assembly 10 and the geometric properties of the gas cooking hob are variable within a wide range.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
  • Baking, Grill, Roasting (AREA)
  • Gas Burners (AREA)
EP15197203.1A 2015-12-01 2015-12-01 Pan support device Active EP3176508B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES15197203T ES2729655T3 (es) 2015-12-01 2015-12-01 Dispositivo de soporte de cacerolas
EP15197203.1A EP3176508B1 (en) 2015-12-01 2015-12-01 Pan support device
CN201680064007.7A CN108351110B (zh) 2015-12-01 2016-11-04 平底锅支撑装置
AU2016363483A AU2016363483B2 (en) 2015-12-01 2016-11-04 Pan support device
BR112018011034-5A BR112018011034B1 (pt) 2015-12-01 2016-11-04 Dispositivo de suporte de panela para um conjunto de queimador de gás de uma placa de cozimento a gás, conjunto de queimador de gás e placa de cozimento a gás
US15/778,246 US20180347824A1 (en) 2015-12-01 2016-11-04 Pan support device
PCT/EP2016/076627 WO2017092966A1 (en) 2015-12-01 2016-11-04 Pan support device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15197203.1A EP3176508B1 (en) 2015-12-01 2015-12-01 Pan support device

Publications (2)

Publication Number Publication Date
EP3176508A1 EP3176508A1 (en) 2017-06-07
EP3176508B1 true EP3176508B1 (en) 2019-03-13

Family

ID=54754555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15197203.1A Active EP3176508B1 (en) 2015-12-01 2015-12-01 Pan support device

Country Status (7)

Country Link
US (1) US20180347824A1 (zh)
EP (1) EP3176508B1 (zh)
CN (1) CN108351110B (zh)
AU (1) AU2016363483B2 (zh)
BR (1) BR112018011034B1 (zh)
ES (1) ES2729655T3 (zh)
WO (1) WO2017092966A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021025634A1 (en) * 2019-08-06 2021-02-11 Mamur Teknoloji Sistemleri San. A.S. A support device for pan support of a gas hob

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07190387A (ja) * 1993-12-28 1995-07-28 Matsushita Electric Ind Co Ltd ゴトク
CN2702690Y (zh) * 2003-02-24 2005-06-01 富良 轻便支架
US20070272231A1 (en) * 2006-05-25 2007-11-29 Ssw Holding Company, Inc. Oven rack having an integral lubricious, dry porcelain surface
JP2008151493A (ja) * 2006-11-21 2008-07-03 Rinnai Corp ガスコンロ
US20090127246A1 (en) * 2007-11-16 2009-05-21 Bsh Home Appliances Corporation Treated structural components for a cooking appliance
AU2009231233B2 (en) * 2008-04-04 2012-08-30 Aktiebolaget Electrolux A trivet
CN201259257Y (zh) * 2008-04-28 2009-06-17 海尔集团公司 燃气灶用支锅架
ITTO20110078U1 (it) * 2011-07-29 2013-01-30 Indesit Co Spa Bruciatore di gas, in particolare per un apparecchio di cottura per alimenti
DE102012205466A1 (de) * 2012-04-03 2013-10-10 BSH Bosch und Siemens Hausgeräte GmbH Topfträger und Gaskochfeld
CN203586330U (zh) * 2013-10-29 2014-05-07 湖北宜昌五峰鑫星节能炉具开发有限公司 一种旋转餐炉台面

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
AU2016363483B2 (en) 2022-03-31
BR112018011034A2 (pt) 2018-11-21
CN108351110B (zh) 2020-06-05
CN108351110A (zh) 2018-07-31
ES2729655T3 (es) 2019-11-05
BR112018011034B1 (pt) 2021-08-03
WO2017092966A1 (en) 2017-06-08
EP3176508A1 (en) 2017-06-07
US20180347824A1 (en) 2018-12-06
AU2016363483A1 (en) 2018-04-26

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