WO2013115176A1 - Ustensile de cuisine - Google Patents

Ustensile de cuisine Download PDF

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Publication number
WO2013115176A1
WO2013115176A1 PCT/JP2013/051888 JP2013051888W WO2013115176A1 WO 2013115176 A1 WO2013115176 A1 WO 2013115176A1 JP 2013051888 W JP2013051888 W JP 2013051888W WO 2013115176 A1 WO2013115176 A1 WO 2013115176A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating element
cooking utensil
concentric
concentric circle
main body
Prior art date
Application number
PCT/JP2013/051888
Other languages
English (en)
Japanese (ja)
Inventor
善之 河澄
Original Assignee
京セラ株式会社
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 京セラ株式会社 filed Critical 京セラ株式会社
Priority to JP2013556410A priority Critical patent/JP5918276B2/ja
Publication of WO2013115176A1 publication Critical patent/WO2013115176A1/fr

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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
    • A47J27/00—Cooking-vessels
    • A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels

Definitions

  • the present invention relates to a cooking utensil.
  • a cooking utensil provided with a stainless steel heating element at the bottom of the main body has been used as a cooking utensil for an electromagnetic cooker.
  • This cooking appliance heats the entire main body by generating an eddy current in the heating element.
  • the bottom part of the main body of the cooking utensil and the temperature sensor of the electromagnetic cooker are separated, and the temperature of the cooking utensil may be regarded as low.
  • Patent Document 1 discloses heating elements of various patterns.
  • an object of the present invention is to provide a cooking utensil that can be heated to a high temperature while reducing distortion of the bottom of the main body of the cooking utensil.
  • the present invention is a cooking utensil comprising a deep dish-shaped main body having a flat bottom and a disk-shaped heating element having a central hole disposed on the outer surface of the bottom, wherein the heating element And a first concentric circle portion located around the center, a second concentric circle portion located on the outer periphery, and a non-concentric circle portion connecting the first concentric circle portion and the second concentric circle portion.
  • a cooking utensil comprising a deep dish-shaped main body having a flat bottom and a disk-shaped heating element having a central hole disposed on the outer surface of the bottom, wherein the heating element is A first concentric circle portion located around the center, a second concentric circle portion located on the outer periphery, and a non-concentric circle portion connecting the first concentric circle portion and the second concentric circle portion.
  • a cooking utensil that can be heated to a high temperature while reducing distortion at the bottom of the main body can be provided.
  • a cooking utensil comprising a deep dish-shaped main body having a flat bottom and a disc-shaped heating element having a central hole disposed on the outer surface of the bottom.
  • the heating element has a first concentric circle portion located around the center, a second concentric circle portion located on the outer periphery, and a non-concentric circle portion connecting the first concentric circle portion and the second concentric circle portion. .
  • the cooking utensil 1 has a deep dish-like main body 2 having a flat bottom 2a.
  • the main body 2 has a heating element 3 on the outer surface of the bottom 2a, as shown in FIGS.
  • the heating element 3 has a disk shape having a central hole 3a.
  • a first concentric circle part 4 located around the center indicated by hatching, a second concentric circle part 5 located on the outer circumference indicated by hatching, a first concentric circle part 4 and a second
  • a non-concentric circle portion 6 (for example, a radial region indicated by a range of arrows in both directions in FIG. 3) between the concentric circle portions 5.
  • first concentric circle portion 4 and the second concentric circle portion 5 are concentric portions of the disc-shaped heating element 3 that are equidistant from the center of the heating element 3.
  • the first concentric circle portion 4 and the second concentric circle portion 5 are configured such that the eddy current in the circumferential direction of the disc-shaped heating element 3 is a hole or the like disposed on the heating element 3 (for example, the long hole 7 in FIGS. 3 and 4). , Which refers to the round hole 8).
  • the 1st concentric circle part 4 and the 2nd concentric circle part 5 say the part of the continuous concentric circle where the heat generating body 3 continues in the circumferential direction.
  • the non-concentric circular portion 6 is a portion where the eddy current in the circumferential direction of the disc-shaped heating element 3 is easily inhibited by holes or the like arranged on the heating element 3.
  • non-concentric circular portion 6 refers to a portion where the heating element 3 is not continuous in the circumferential direction.
  • the eddy current refers to a macro eddy current generated in the circumferential direction on the main surface of the heating element 3, and a micro eddy current generated locally on the main surface of the heating element 3. It does not mean that.
  • the eddy current generated on the heating element 3 can be observed by measuring the heat distribution on the heating element 3 using, for example, a radiation thermometer.
  • the concentric first concentric circle portion 4 and the second concentric circle portion 5 that do not hinder the flow of eddy current in the circumferential direction of the heating element 3, that is, the inner and outer circumferential sides of the heating element 3 are micro Eddy currents can be concentrated to generate macro eddy currents.
  • the inner peripheral side and the outer peripheral side of the heating element 3 generate heat efficiently, the inner periphery of the heating element 3 is compared with the case where the temperature of the entire heating element 3 is increased simultaneously.
  • a local high temperature part can be formed in the side and the outer peripheral side, and a foodstuff can be cooked efficiently.
  • the temperature of the non-concentric circular portion 6 located between the inner peripheral side and the outer peripheral side of the heating element 3, that is, between the first concentric circular portion 4 and the second concentric circular portion 5, is relatively low.
  • the areas of the non-concentric circular part 6, the first concentric circular part 4 and the second concentric circular part 5 are large in order in order to provide a local high-temperature part in the heating element 3.
  • the area of the non-concentric circular portion 6 is 70 to 80%
  • the area of the first concentric circular portion 4 is 20 to 10%
  • the non-concentric circular part 6 is provided with a plurality of long holes 7 having a long axis in a radial pattern.
  • a plurality of long holes 7 having a long axis are provided radially on the non-concentric circular portion 6.
  • the plurality of long holes 7 concentrate the density distribution of eddy currents in the circumferential direction of the heating element 3 on the inner and outer peripheral sides of the heating element 3.
  • the temperature distribution in the circumferential direction of the heating element 3 can be controlled, the inner peripheral side and the outer peripheral side of the heating element 3 can be locally heated, and the temperature can be increased in a short time.
  • the angle at which the long holes 7 are arranged is preferably equidistant within the range of 10 to 30 degrees around the central hole 3a.
  • the long hole 7 is preferable in that generation of eddy current in the circumferential direction in the non-concentric circular portion 6 of the heating element 3 can be suppressed.
  • the long hole 7 promotes electrical conduction (supply of electricity) in the radial direction on the main surface of the heating element 3, that is, from the non-concentric circular portion 6 to the first concentric circular portion 4 and the second concentric circular portion 5. It is preferable in that it can be performed.
  • the long hole 7 preferably has a major axis: minor axis length ratio of 7: 1 to 3: 1.
  • the long hole 7 is preferable in that the generation of eddy current in the circumferential direction in the non-concentric circular portion 6 of the heating element 3 can be suppressed.
  • the long hole 7 is preferable in that the electric conduction (supply of electricity) in the radial direction on the main surface of the heating element 3 can be promoted.
  • the area ratio of the long holes 7 occupying the main surface of the heating element 3 is 10 to 30%, which secures a heat generating portion on the main surface of the heating element 3 and It is preferable at the point which ensures adhesiveness with the part 2.
  • the plurality of long holes includes a first long hole group located in at least one concentric circle among the plurality of concentric circles and a second long hole located in the other concentric circles. And a long hole group.
  • the plurality of long holes 7 are positioned outside the heat generating element 3 and the first long hole group 7 a on the first concentric circle 4 side positioned inside the heat generating element 3. It arrange
  • the degree of heat generation in the non-concentric circular portion 6 can be set by the positional relationship between the first long hole group 7a and the second long hole group 7b.
  • the eddy current in the non-concentric circular portion 6 is suppressed as the positional relationship between the first long hole group 7a and the second long hole group 7b overlaps each other in the circumferential direction of the heating element 3. .
  • the ratio in which the long holes 7 overlap in the circumferential direction is, for example, in FIG. 3 and FIG. 4, where the long holes 7 overlap in the circumferential direction with respect to the sum of the lengths of the long holes 7 in the radial direction.
  • a ratio of the sum of the lengths it is preferably 10 to 30%.
  • the concentric circle in the range of the non-concentric circular portion 6 is not for the first concentric circular portion 4 and the second concentric circular portion 5 described above but for the purpose of indicating the arrangement position of the long holes 7 for convenience. .
  • the plurality of long holes are arranged in a spiral shape.
  • the center of the spiral in which a plurality of long holes 7 are arranged in a spiral is a center hole 3a.
  • the distance between the central hole 3a of the heating element 3 and each long hole 7 changes in a spiral shape.
  • the thermal stress from the inner circumference side or the outer circumference side of the heating element 3 propagates in a spiral manner in the range of the non-concentric circle part 6, and the first concentric circle part 4 and the second concentric circle of the heating element 3.
  • the distortion of the part 5 can be suppressed.
  • the thermal stress is released from the concentric closed system of the heating element 3 to the non-concentric circular part 6.
  • a plurality of round holes are alternately arranged between the plurality of long holes.
  • the round hole 8 of the heating element 3 has a close contact between the heating element 3 and the main body 2 because the main body 2 is engaged in the round hole 8 when the heating element 3 is pressed against the bottom 2 a of the main body 2. Can be improved.
  • the area ratio occupied by the round holes 8 is 10 to 30% of the main surface of the heat generating element 3 to secure a heat generating portion on the main surface of the heat generating element 3 and adherence between the heat generating element 3 and the main body 2. Is preferable in that it can be secured.
  • the proportion of the plurality of round holes on the main surface of the heating element is provided such that the outer peripheral side is larger than the inner peripheral side of the heating element.
  • the material of the main body 2 is preferably a highly electrothermal material such as aluminum.
  • the outer surface of the bottom 2a of the main body 2 can be nitrided to cure the outer surface and reduce the distortion of the bottom 2a of the main body 2.
  • the material of the heating element 3 may be any material that generates electromagnetic induction heat, such as stainless steel.
  • one having high rigidity is preferable, and one having a thermal expansion coefficient close to that of the main body portion 2 is preferable.
  • the cooking utensil 1 As the cooking utensil 1 according to the embodiment of the present invention as described above, the cooking utensil 1 is exemplified based on a frying pan shape. However, if it is a cooking utensil that can be used for an electromagnetic cooker, a soup pan, a wok, etc. May be.
  • an aluminum main body 2 and a stainless steel heating element 3 that generates heat by electromagnetic induction are prepared.
  • the main body 2 is formed in a shape that can contain a cooked product such as vegetables, and the heating element 3 is disposed on the outer surface of the bottom 2 a of the main body 2.
  • the heating element 3 is fitted into the bottom 2a of the main body 2 formed using aluminum by a cold press.
  • This cold press is to push into the hole formed in the heating element 3 while deforming the aluminum of the bottom 2a, thereby fixing the heating element 3 to the bottom 2a.
  • a composite plate in which the heating element 3 is fixed to the aluminum plate material for molding the main body 2 by press-bonding is formed.
  • the shape of the main body 2 of the cooking utensil 1 may be formed by pressing the composite plate.
  • a press or the like is used as an embodiment of the method for manufacturing a cooking utensil of the present invention, but casting may be used.
  • Example preparation A cooking utensil 1 having a heating element 3 shown in FIG. 3 was prepared as Example 1 of the present invention, and a cooking utensil 1 having a heating element 3 shown in FIG.
  • the main body 2 of the cooking utensil 1 has the same shape, and the material of the main body 2 is unified with aluminum.
  • Example 1 the thickness and area of the heating element 3 are assumed to be equal, and the material of the heating element 3 is unified with stainless steel.
  • Table 1 shows the results of measuring the temperature of water with respect to the heating time after 1 minute and after 10 minutes.
  • Example 1 and Example 2 were able to increase the temperature at the bottom 2a as compared with Comparative Examples 1 to 4.
  • Example 1 In contrast to Comparative Examples 1 to 4, in Example 1, the water temperature was 35 ° C. after 1 minute, up to 95 ° C. after 10 minutes, and Example 2 was 40 ° C. after 1 minute. Up to 10 ° C, the temperature could be raised to 100 ° C.
  • Table 2 shows the results of measuring the amount of strain (height at which the bottom 2a is raised) with respect to the heating time after 1 minute and after 10 minutes.
  • Example 2 was able to reduce distortion of the bottom 2a of the main body 2 compared to Example 1.
  • Example 2 can make the bottom 2a and the IH heater closer to each other than Example 1, and thereby heat water efficiently.
  • Cookware 2 Main body 2a: Bottom 3: Heating element 3a: Center hole 4: First concentric circle 5: Second concentric circle 6: Non-concentric circle 7: Long hole 7a: First long hole group 7b: Second long hole group 8: round hole

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)
  • Frying-Pans Or Fryers (AREA)

Abstract

L'invention fournit un ustensile de cuisine dans lequel les déformations d'une partie inférieure d'une partie corps principal de l'ustensile de cuisine sont réduites, et qui permet un chauffage à température élevée. L'ustensile de cuisine de l'invention est équipé : de la partie corps principal en forme de plat creux qui possède une partie fond de forme plate; et d'une partie génération de chaleur en forme de disque possédant un trou central, et disposée sur la surface externe de ladite partie fond. Cette partie génération de chaleur possède une première partie concentrique positionnée autour du centre, une seconde partie concentrique positionnée à sa périphérie externe, et une partie non concentrique reliant lesdites première et seconde parties concentriques.
PCT/JP2013/051888 2012-01-31 2013-01-29 Ustensile de cuisine WO2013115176A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013556410A JP5918276B2 (ja) 2012-01-31 2013-01-29 調理器具

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012017431 2012-01-31
JP2012-017431 2012-01-31

Publications (1)

Publication Number Publication Date
WO2013115176A1 true WO2013115176A1 (fr) 2013-08-08

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ID=48905211

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/051888 WO2013115176A1 (fr) 2012-01-31 2013-01-29 Ustensile de cuisine

Country Status (2)

Country Link
JP (1) JP5918276B2 (fr)
WO (1) WO2013115176A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900009378A1 (it) * 2019-06-18 2020-12-18 Ballarini Paolo & Figli Spa Recipiente per la cottura di alimenti con parete di fondo con foratura bilanciata
JP7505729B2 (ja) 2019-08-23 2024-06-25 石川県公立大学法人 Ｉｈ／直火両用の調理容器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001353068A (ja) * 2000-06-13 2001-12-25 Endo Mfg Co Ltd 加熱調理器具およびその製造方法
JP2003051375A (ja) * 2001-08-08 2003-02-21 Matsushita Electric Ind Co Ltd 電磁誘導加熱調理器用の被加熱調理器具
JP2005205196A (ja) * 2003-12-11 2005-08-04 Taiei Japan:Kk 調理用容器の底部に配設される金属板及び該金属板を備えた調理用容器
JP2005348924A (ja) * 2004-06-10 2005-12-22 Nikkei Products Co Ltd 電磁調理用容器の製造方法
JP2006075214A (ja) * 2004-09-07 2006-03-23 Asahi Keikinzoku Kogyo Kk 電磁調理器用鍋とその製造方法
JP2009032478A (ja) * 2007-07-26 2009-02-12 Panasonic Corp 誘導加熱調理器およびその誘導加熱調理器用鍋

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Publication number Priority date Publication date Assignee Title
JPS59104497U (ja) * 1982-12-28 1984-07-13 尾形　弘治 電磁加熱器用調理器
JPH08103369A (ja) * 1994-10-04 1996-04-23 Hitachi Home Tec Ltd 電磁誘導加熱炊飯器の炊飯容器
JP3374758B2 (ja) * 1998-08-18 2003-02-10 タイガー魔法瓶株式会社 電磁炊飯器
KR100555626B1 (ko) * 2003-12-08 2006-03-03 주식회사 남선홈웨어 유도가열 조리기구용 열전도판 구조
JP3890336B2 (ja) * 2004-04-12 2007-03-07 ダイヤアルミ株式会社 電磁調理器用調理器具

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001353068A (ja) * 2000-06-13 2001-12-25 Endo Mfg Co Ltd 加熱調理器具およびその製造方法
JP2003051375A (ja) * 2001-08-08 2003-02-21 Matsushita Electric Ind Co Ltd 電磁誘導加熱調理器用の被加熱調理器具
JP2005205196A (ja) * 2003-12-11 2005-08-04 Taiei Japan:Kk 調理用容器の底部に配設される金属板及び該金属板を備えた調理用容器
JP2005348924A (ja) * 2004-06-10 2005-12-22 Nikkei Products Co Ltd 電磁調理用容器の製造方法
JP2006075214A (ja) * 2004-09-07 2006-03-23 Asahi Keikinzoku Kogyo Kk 電磁調理器用鍋とその製造方法
JP2009032478A (ja) * 2007-07-26 2009-02-12 Panasonic Corp 誘導加熱調理器およびその誘導加熱調理器用鍋

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900009378A1 (it) * 2019-06-18 2020-12-18 Ballarini Paolo & Figli Spa Recipiente per la cottura di alimenti con parete di fondo con foratura bilanciata
WO2020254883A1 (fr) * 2019-06-18 2020-12-24 Zwilling Ballarini Italia S.R.L. Récipient de cuisson pour la cuisson d'aliments ayant une paroi inférieure avec des trous traversants agencés de manière symétrique
US11844460B2 (en) 2019-06-18 2023-12-19 Zwilling Ballarini Italia Srl Cooking vessel for cooking food having a bottom wall with through holes arranged in a symmetrical manner
JP7461387B2 (ja) 2019-06-18 2024-04-03 ツビリング・バッラリーニ・イタリア・エッセ・エッルレ・エッレ 対称的に配置された貫通孔のある底壁を有する食品を調理用の調理容器
JP7505729B2 (ja) 2019-08-23 2024-06-25 石川県公立大学法人 Ｉｈ／直火両用の調理容器

Also Published As

Publication number Publication date
JP5918276B2 (ja) 2016-05-18
JPWO2013115176A1 (ja) 2015-05-11

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