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WO2014203543A1 - Appareil de cuisson chauffant - Google Patents

Appareil de cuisson chauffant Download PDF

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Publication number
WO2014203543A1
WO2014203543A1 PCT/JP2014/050101 JP2014050101W WO2014203543A1 WO 2014203543 A1 WO2014203543 A1 WO 2014203543A1 JP 2014050101 W JP2014050101 W JP 2014050101W WO 2014203543 A1 WO2014203543 A1 WO 2014203543A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooking
temperature
plate
contact
cooling
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.)
Ceased
Application number
PCT/JP2014/050101
Other languages
English (en)
Japanese (ja)
Inventor
桂児 北林
健司 新間
板倉　克裕
晃 三雲
仲田　博彦
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 claimed from JP2013127055A external-priority patent/JP2015000262A/ja
Priority claimed from JP2013131791A external-priority patent/JP6060828B2/ja
Priority claimed from JP2013159994A external-priority patent/JP2015029627A/ja
Priority claimed from JP2013167931A external-priority patent/JP2015036044A/ja
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of WO2014203543A1 publication Critical patent/WO2014203543A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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

Definitions

  • the present invention relates to a cooking device that heats food by placing it on it, and more particularly to a cooking device that is excellent in absolute temperature accuracy and repeatability required in commercial facilities that provide various menus.
  • Patent Document 1 since the through hole is provided in the holding plate in the vicinity of the temperature measurement part to which the temperature sensor is attached, the temperature measurement part is likely to exchange heat with the outside air and generate heat. Sometimes it was detected below the actual temperature of the body or cooking plate. As a result, the actual temperature may be higher than the control temperature, causing problems such as scorching the food.
  • the difference between the set temperature and the actual temperature can be made extremely small, so that the food placed on the cooking plate can be cooked without excess or deficiency, and thus stable cooking without variations is possible.
  • the heating cooker of the present invention is a heating cooker for heating ingredients placed on a cooking surface using a built-in heater, and a temperature for controlling the heater on a cooking plate provided with the cooking surface.
  • a resistance temperature detector is attached as a sensor. Accordingly, the difference between the set temperature and the actual temperature can be extremely reduced, so that the food placed on the cooking plate can be cooked without excess and deficiency, and thus stable cooking without variation is possible.
  • Ceramics or a composite containing ceramics for the material of the cooking plate 11 and the support plate 12. This is because these ceramic materials are excellent in machining accuracy, so that the flatness of the cooking surface 11a can be kept good. In addition, it has excellent rigidity (Young's modulus) and does not deform even if the plate thickness is reduced, so the heat capacity of the member can be reduced compared to conventional thick iron-based materials, and thus the heating and cooling speed can be increased. It becomes possible.
  • the rectangular parallelepiped shape which has the magnitude
  • the bottom face of the counterbore 211b may be formed on the back side of the cooking plate 11, and the bottom face of the counterbore hole 211b may be brought into contact with the side face of the temperature measuring element portion 16a.
  • the contact is within the range of up to 30% of the thickness of the cooking plate 11 from the center in the thickness direction of the cooking plate 11 up and down. It is preferable that a contact surface exists.
  • the position of the contact surface can be adjusted by machining a counterbore hole in accordance with the shape of the temperature measuring element by machining.
  • the above-mentioned adhesive generally has a low thermal conductivity. Therefore, the adhesive can become a thermal resistance when transferring heat from the cooking plate 11 to the temperature measuring element portion 16a.
  • Such locally different heat generation density designs can be designed in one heating element circuit as described above, but a plurality of heating element circuits may be provided in a plane.
  • separate heating element circuits are provided on the inner and outer peripheral sides, separate heating element circuits are provided on the right and left halves, and heating element circuits are provided for each region divided by the central angle ⁇ in the circumferential direction. May be.
  • temperature control can be performed individually by providing the temperature sensor for each divided area.
  • a plurality of heating element circuits may be provided over a plurality of layers instead of a single layer.
  • a heating element layer that supplies power only when the set temperature is changed can be provided at a position different from the heating element layer for control purposes in the thickness direction. In this case, it is necessary to interpose an insulating sheet for the purpose of electrical insulation between the two heating element layers.
  • the insulating sheet is preferably flexible as compared with the cooking plate 11 and the support plate 12.
  • the insulating sheet is not flexible, it is flexible between the insulating sheet and the cooking plate 11, or between the insulating sheet and the support plate 12, and is more flexible than the cooking plate 11 or the support plate 12 and has high thermal conductivity in the planar direction.
  • Conductive sheets for example, aluminum sheet: 100 to 250 W / m ⁇ K, copper sheet: 400 W / m ⁇ K, graphite sheet: 200 to 1700 W / m ⁇ K may be disposed.
  • the material for the insulating sheet may be further selected from silicone resin, fluorine resin, polyimide resin, ceramic fiber sheet, mica, and the like.
  • Silicone resin can contribute to improvement of the characteristics of the heater 13 described above by making use of its flexibility, and fluorine resin, polyimide resin, ceramic fiber sheet, mica, etc. can be used even in a temperature range exceeding 200 ° C. I can do it.
  • mica can be used even in a temperature range exceeding 500 ° C. and is excellent in electrical insulation, so that it is suitable for use in a high temperature range.
  • a metal foil layer that is electrically insulated from the circuit of the resistance heating element is formed at the same time so as to fill a gap between the adjacent conductive wires. Also good. Since this metal foil layer is formed of the same material and the same thickness as the resistance heating element, the thermal conductivity can be made higher than that of the insulating sheet described above. Therefore, the heat transfer resistance in the layer of the heater 13 sandwiched between the cooking plate 11 and the support plate 12 can be further reduced. Further, as described above, when the cooking plate 11 and the support plate 12 are mechanically coupled, by providing a metal foil layer around the screwing portion, the thickness of the layer provided with the heater 13 is made uniform. It also contributes to preventing the deformation of the plate due to the axial force of the screw during screwing.
  • FIGS. 8B to 8D two plate-like members 25a and 25b having substantially the same shape made of metal are prepared, and a flow path is formed by machining on one or both surfaces thereof. It is possible to form the groove 26 by overlapping the two sheets so as to cover the flow path forming surface and integrating them with a coupling means such as brazing (hereinafter referred to as a brazing method). .
  • the brazing method has a higher heat exchange efficiency than the pipe method because the refrigerant directly contacts the plate-like member, and is suitable for cooling at a high speed.
  • FIGS. 8B to 8C show a case where the groove 26 serving as a flow path is processed only in one of the two plate-like members 25a and 25b to be overlapped.
  • FIG. 4d shows a case where the groove 26 serving as a flow path is processed in both the plate-like members 25a and 25b.
  • the metal plate-like member 27 is on the opposite side to the contact surface 27a that contacts the support plate 12.
  • a ring-shaped or spiral-shaped counterbore groove 28 may be provided on the surface, and, for example, a Cu pipe 29 formed in a spiral shape may be installed therein.
  • the Cu pipe 29 is bonded and fixed between the outer surface of the Cu pipe and the ring-shaped counterbore processed surface with a caulking material, sealant, adhesive, or the like. preferable.
  • a stainless steel joint (not shown), for example, is attached to the opening at the end of the copper pipe 29, and a coolant such as water can be circulated from here to keep the temperature of the cooling plate constant.
  • the coolant channel 226 may be formed in the support plate 212 in the cooking plate 211 and the support plate 212 that sandwich the thin plate-shaped heater 213 from above and below.
  • the support plate 212 with the flow path can be manufactured by the brazing method performed when the cooling plate 20 including the refrigerant flow path described above is manufactured.
  • the material of the cooling plate 20 and the support plate 212 with the flow path is selected from the group consisting of copper, aluminum, nickel, magnesium, titanium having good thermal conductivity, and an alloy such as stainless steel mainly containing any of these. It is preferable to do. Among these, in particular, aluminum is more preferable because it has excellent thermal conductivity and has a small specific gravity and can reduce the weight of the device.
  • the cooling plate 20 may be subjected to a surface treatment such as Ni plating with high corrosion resistance and oxidation resistance as necessary. Further, the cooling plate 20 may be provided with a through hole or a notch for inserting the above-described power supply wiring to the resistance heating element and the temperature sensor.
  • the cooling plate 20 may be configured to be reciprocally movable in the vertical direction. By making the cooling plate 20 reciprocating in this way, the cooling plate 20 can be separated from the heating cooker 10 as shown in FIG. 10A, or the cooling plate 20 can be moved as shown in FIG. It can be brought into contact with the heating cooker 10, and heating and cooling can be performed more efficiently.
  • the reciprocating movement of the cooling plate 20 may be manual, but it is preferable to automatically reciprocate using an elevating mechanism using an air cylinder or a motor drive.
  • the heating cooker 10 when the cooling plate 20 is reciprocated using the lifting mechanism 31, the heating cooker 10 can be connected to the cooking device 10 as much as possible under the restrictions such as the installation environment of the cooking device 10 and the allowable weight and size. It is preferable that the contact thrust is large. Thereby, the heat transfer resistance which arises in the contact surface of the cooling plate 20 and the heating cooker 10 can be made small, and required cooling time can be shortened. Furthermore, it is possible to improve the in-plane temperature distribution by eliminating local heat transfer resistance. Specifically, it is desirable that the thrust of the lifting mechanism 31 such as an air cylinder be equal to or greater than the weight of the cooling plate 20. In addition to the air cylinder lifting mechanism 31, immediately after the cooling plate 20 abuts on the heating cooker 10, the abutting surfaces may be adsorbed by vacuum adsorption to improve the adhesion. Thereby, it can cool more rapidly.
  • the cooling plate 20 When the cooling plate 20 is reciprocated, it is preferable to use copper as the material of the cooling plate 20.
  • copper has a large heat capacity, and therefore the amount of heat taken away from the object to be cooled is large in the contact / separation structure, which is suitable for cooling at high speed. Since copper has a high specific gravity and a large weight, there are cases where there are weight restrictions and cases that are not preferable from the viewpoint of handling. In such a case, aluminum may be used.
  • the material and size of the cooling block 32 can be the same as those of the cooling plate 20 described above, but the specific size of the cooling block 32 is appropriately selected in consideration of the space and cost given to the cooker. Is done.
  • the entire surface of the abutting surface is evenly transmitted. It is possible to heat, and therefore, it is possible to expect an effect that the temperature distribution on the cooking surface 11a is difficult to be attached during cooling.
  • an intervening layer 33 having a cushioning property that can be deformed in the thickness direction may be provided on the surface of the cooling plate 20 that contacts the heating cooker 10.
  • the intervening layer 33 may be disposed on the surface of the cooling plate 20 that contacts the support plate 12 of the heating cooker 10 or may be disposed on the surface of the support plate 12 of the heating cooker 10 that contacts the cooling plate 20. However, it may be arranged on both surfaces thereof, but it is preferable to provide the cooling plate 20 on the surface that contacts the support plate 12 of the heating cooker 10.
  • the flatness of the surface in contact with the cooling plate 20 in the support plate 12 of the heating cooker 10 and the flatness of the surface in contact with the support plate 12 of the heating cooker 10 in the cooling plate 20 should each be 0.5 mm or less. preferable. If the thickness exceeds 0.5 mm, it is difficult to maintain the contact property with the intervening layer 33, and the thickness of the intervening layer 33 may be increased in order to maintain the contact property. There is. In addition, it is suitable if the sum total of the flatness of the surface which contacts the cooling plate 20 in the heating cooker 10 and the flatness of the surface which contacts the heating cooker 10 in the cooling plate 20 is 0.1 mm or less. By doing so, the thickness of the intervening layer 33 can theoretically be reduced to 0.1 mm, and by doing so, the thermal resistance is small and the cooling can be performed at high speed.
  • region of the intervening layer 33 is 10% or more and 90% or less of the area of the contact surface with the support plate 12 of the heating cooker 10 in the cooling plate 20. This is because if the amount is less than 10%, the contact area becomes too small and the cooling rate becomes slow. On the other hand, if it exceeds 90%, it is difficult to attach uniformly.
  • an attachment method of the intervening layer 33 if it can fix, For example, it can attach favorably by adhesive means, such as an adhesive agent, a double-sided tape, and adhesive resin. When these adhesion means are selected, those that are thin, have low thermal resistance, and high thermal conductivity are more desirable. In the case of an intervening layer having a certain thickness such as a thin plate, it may be mechanically fixed by screwing or the like.
  • a counterbore hole having a flat bottom surface and a depth of 5 mm was formed by machining.
  • the bottom surface of the counterbore hole is located 1 mm away from the cooking surface 11 a of the cooking plate 11, and exists at a position that is offset by 33% of the thickness of the cooking plate 11 from the center in the thickness direction of the cooking plate 11 to the cooking surface 11 a side. Will do.
  • the flat portion of the temperature measuring element portion of the resistance temperature detector was brought into contact with the bottom surface of the counterbore hole.
  • thermocouple instead of a resistance temperature detector as a temperature sensor, a sheath protective tube type thermocouple with an outer diameter of 3 mm and a tip of R1.5 mm is prepared, and the tip of this protective tube is 1 mm from the cooking surface, respectively.
  • Five types of cooking plates having counterbored holes that contact the bottom surface at positions 2 mm, 3 mm, 4 mm, and 5 mm apart were prepared, and thermocouples were attached to each. Except this, the cooking devices for Samples 6 to 10 were produced in the same manner as Sample 1 above.
  • a cooling plate 20 that can reciprocate in the vertical direction is provided at the bottom of the cooking device for each sample.
  • the cooling plate 20 was a plate in which a phosphorous deoxidized copper pipe having an outer diameter of 6 mm and an inner diameter of 4 mm was fixed with a screw on one side of a base made of an aluminum alloy plate having a width of 600 mm, a length of 450 mm, and a thickness of 10 mm. Joints for supplying and discharging the refrigerant were attached to both ends of the phosphorous deoxidized copper pipe. Further, the cooling plate 20 was formed with a through-hole for inserting the heater power supply wiring, the temperature sensor lead wire, and the rod-shaped leg portion of the heating cooker.
  • the control temperature and cooking of the cooking plate are compared with those of samples 6 to 10 regardless of the installation location (depth) of the sensor.
  • the actual temperature deviation of the surface was overwhelmingly small. This is because the resistance thermometer has a smaller heat capacity than a sheathed thermocouple, and there is no inclusion for heat insulation such as oxide powder such as MgO, so the response to heat transfer from the heater is faster. In addition, it is considered that there is no heat dissipating part such as a metal tube, so that highly accurate measurement is possible.
  • Example 2 Heat cookers for samples 11 to 14 were prepared in the same manner as in Example 1 except that counterbore holes of various shapes were provided in the cooking plate and the temperature sensor used in Example 1 was attached to the bottom surface in various states. . Specifically, in the heating cooker of sample 11, a cylindrical counterbore having an inner diameter of 3.2 mm and a depth of 3 mm was formed, and the tip of the thermocouple was attached to the bottom surface in a point contact state. Sample 12 has a cylindrical counterbore hole with an inner diameter of 2 mm and a depth of 3 mm in the cooking device of sample 12, and a flat portion of 0.7 mm in length and 1.2 mm in width of the temperature measuring element portion of the resistance temperature detector is faced on the bottom surface. Mounted in contact.
  • a rectangular parallelepiped-shaped counterbore of 3 mm in length, 5 mm in width, and 3 mm in depth is formed, and a 1.2 mm vertical by 1.7 mm horizontal plane of the temperature measuring element portion of the resistance thermometer is formed on the bottom surface thereof.
  • the part was attached in surface contact.
  • a rectangular parallelepiped-shaped counterbore with a length of 1.5 mm, a width of 3 mm, and a depth of 3 mm is formed, and the temperature measuring element portion of the resistance temperature detector is 0.7 mm long by 1.2 mm wide.
  • the flat part of was attached in a surface contact state.
  • the recovery time when a low-temperature food is placed on the cooking surface 11a of the cooking plate 11 is measured. Thermal responsiveness was evaluated. This recovery time is a time until the temperature once lowered by placing the low temperature food is restored to 250 ° C. and stabilized by the control system including the temperature sensor and the heater in the control loop. The results are shown in Table 2 below.
  • Example 4 The heating cookers of Samples 11 and 12 used in Example 3 were prepared again, and the heater 13 was fed with power to 250 ° C. and held at that temperature. And the temperature of the cooking surface is measured with a contact-type thermometer immediately after the temperature is raised to 250 ° C. and 30 minutes after the temperature is raised to 250 ° C., and the difference between the maximum value and the minimum value among the 30 points in the surface is calculated. The temperature distribution (soaking range) was determined by calculation.
  • the intermediate portion of the lead wires connected to the temperature control device from the electrode pad portion of the resistance temperature detector is on the side opposite to the surface facing the heater in the support plate. It fixed with the adhesive agent in the state contact
  • the length of the lead wire abutted against the support plate is 80 mm, and the surface of the cooling plate that comes into contact with the support plate is counterbored so that the cable does not interfere when the cooling plate abuts against the support plate. did.
  • the temperature was raised to 250 ° C. in the same manner as described above, and the temperature distribution (soaking range) immediately after the temperature increase and 30 minutes after the temperature increase was obtained. The results are shown in Table 4 below.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Baking, Grill, Roasting (AREA)

Abstract

L'invention fournit un appareil de cuisson chauffant qui est équipé d'un capteur de température permettant de mesurer selon une haute précision la température effective. Plus précisément, l'invention concerne un appareil de cuisson chauffant (10) qui chauffe un aliment (F) posé sur une face cuisson (11a) à l'aide d'un élément chauffant (13) intégré. Une résistance détectrice de température (16) est installée en tant que capteur de température destiné à commander l'élément chauffant, sur une plaque de cuisson (11) équipée de la face de cuisson (11a). Cette résistance détectrice de température (16) est équipée d'une partie élément de détection de température possédant une partie face plane ; de préférence, la partie face plane de la partie élément de détection de température vient en contact d'une face fond plane d'un trou fraisé qui est agencé dans une face côté opposée à la face de cuisson (11a) de la plaque de cuisson (11) ; et de préférence encore, un capuchon obturant une portion ouverture est agencé sur le trou fraisé.
PCT/JP2014/050101 2013-06-17 2014-01-08 Appareil de cuisson chauffant Ceased WO2014203543A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2013127055A JP2015000262A (ja) 2013-06-17 2013-06-17 加熱用調理器
JP2013-127055 2013-06-17
JP2013-131791 2013-06-24
JP2013131791A JP6060828B2 (ja) 2013-06-24 2013-06-24 加熱冷却調理器
JP2013-159994 2013-07-31
JP2013159994A JP2015029627A (ja) 2013-07-31 2013-07-31 調理プレート及びこれを備えた調理器
JP2013-167931 2013-08-12
JP2013167931A JP2015036044A (ja) 2013-08-12 2013-08-12 加熱調理器

Publications (1)

Publication Number Publication Date
WO2014203543A1 true WO2014203543A1 (fr) 2014-12-24

Family

ID=52104293

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/050101 Ceased WO2014203543A1 (fr) 2013-06-17 2014-01-08 Appareil de cuisson chauffant

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Country Link
WO (1) WO2014203543A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3411629A4 (fr) * 2016-02-01 2019-04-17 Evo, Inc. Système de cuisson ayant de multiples éléments chauffants

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09289949A (ja) * 1996-04-26 1997-11-11 Sanyo Electric Co Ltd グリドル
JPH1071091A (ja) * 1996-08-29 1998-03-17 Mitsubishi Rayon Co Ltd 冷却及び加熱機能を有するプレート

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09289949A (ja) * 1996-04-26 1997-11-11 Sanyo Electric Co Ltd グリドル
JPH1071091A (ja) * 1996-08-29 1998-03-17 Mitsubishi Rayon Co Ltd 冷却及び加熱機能を有するプレート

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3411629A4 (fr) * 2016-02-01 2019-04-17 Evo, Inc. Système de cuisson ayant de multiples éléments chauffants
US11589422B2 (en) 2016-02-01 2023-02-21 Evo America, Llc Cooking system with multiple heating elements

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