JP2008272249A - Cooker using exothermic glass - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooker which can display the heated surface which is the inferior face of the heated object for cooking. <P>SOLUTION: This cooker comprises an exothermic layer 112 which is equipped in the inferior surface of a plate glass 110a used as a base material and generates heat by conducting, a heating glass plate 110 with visible light permeability which heats the heated object laid on the top through the plate glass 110a by heating of the exothermic layer 112 and a reflecting mirror equipment 160 which, for example, visually displays the state of the heated surface of the heated object laid on the top face of the heating glass plate 110. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cooking device using a heating glass, and more particularly to a cooking device suitable for observing the back surface of a heated object to be heated from the outside.

Various cooking utensils for cooking foods, such as so-called gas ranges, ovens, microwave ovens, and so-called IH cookers that use electromagnetic induction heat generated by metal cooking utensils, have been devised and used in the past. Yes. When cooking food using such a cooking utensil, in order to check the condition of the fire, part of the food that has been cooked by ordinary frying is turned over or turned over to visually check the heated surface. Checking the condition, observing changes in the appearance of the food from a peep window or the like to infer the degree of heating, or piercing the food with a skewer or a thermometer. For example, Patent Document 1 discloses that cooking to be performed while heating is provided with a box 10 with a door that is configured by combining a heater plate formed by baking a heater pattern on the surface of a tempered glass plate in order to make the cooked article being heated visible. Instruments have been proposed.
JP-A-7-302677

  However, even with the conventional method and the configuration of Patent Document 1, it is possible to directly observe and display the state of the heated surface that is in contact with the cooking surface of the utensil during cooking of food. There wasn't.

  The present invention has been made to solve the above and other problems, and one aspect of the present invention is a cooking device for cooking food, in which an electric current is applied to the lower surface of a plate glass serving as a base material. A heating glass plate having visible light permeability, which heats an object to be heated placed on the upper surface of the heating glass by the heat generation of the heating layer, and the heating glass plate It is a heating cooker characterized by comprising the to-be-heated surface display means which displays the state of the to-be-heated surface of the to-be-heated object mounted in the upper surface of this.

  The heated glass plate may be configured as a multi-layer glass including a lower plate glass that is fixedly contacted with the plate glass with a gap therebetween to form an air layer between the heated glass plate.

  The heated surface display means includes a reflecting mirror that reflects an image of the heated surface and receives the image of the heated surface on the outer side of the heated glass plate. it can. The reflecting mirror may be configured such that the angle of the reflecting surface with respect to the heated surface can be changed. Moreover, the 2nd reflective mirror which reflects further so that the image of the to-be-heated surface reflected by the said reflective mirror can be visually recognized from a desired place can be provided.

  Further, the heated surface display means may include imaging means capable of taking an image of the heated surface and outputting it as a video signal.

  Furthermore, it can further have a control part which can adjust the electric current value and / or energization time of the electric current supplied to the heat generating layer of the heated glass plate. Further, it has a temperature measuring means for measuring the temperature of the cooking surface, and is configured to input a measurement result of the temperature measuring means to the control unit and control a current value or energization time in the control unit. May be.

  Moreover, you may construct | coat the coating layer suitable for cooking of a specific foodstuff on the cooking surface of the said heating glass plate.

  According to the cooking device of the present invention, the heated surface corresponding to the back side of the heated object such as food to be cooked can be displayed by the heated surface display means and observed from the outside. If an imaging means is provided in the heated surface display means, the heated surface can be displayed on an external monitor device or the like and viewed by a large number of people.

  If a multilayer glass structure having an air layer is applied to the heated glass plate, heat transfer to the lower side of the heated glass plate is suppressed by the heat insulating effect of the air layer, and the heated object can be efficiently heated. There is no need to unnecessarily raise the temperature below the plate.

  If a control unit for controlling the power supply to the heat generating layer of the heated glass plate is provided, the heating level can be adjusted appropriately while observing the state of the heated surface.

  If an appropriate coating layer is applied to the cooking surface of the heated glass plate, it is possible to prevent the object to be heated, such as food, from being burnt, and to reduce damage to the cooking surface.

  Hereinafter, the present invention will be described with reference to the accompanying drawings in accordance with the embodiment.

<< First Embodiment >>
A cooking device according to a first embodiment of the present invention is shown in FIGS. 1 is a plan view seen from above, FIG. 2 is a cross-sectional view taken along arrow II-II in FIG. 1, and FIG. 3 is a cross-sectional view taken along arrow III-III in FIG.

  As shown in FIGS. 1 to 3, the cooking device 100 of this embodiment includes a heated glass plate 110 that is arranged substantially horizontally and a front support that supports the heated glass plate 110. A plate 150a, a back support plate 150b, a side support plate 150c, a front plate 130, a back plate 140, and a side plate 120 disposed so as to be in close contact with and surround the outer surfaces of these support plates; It mainly includes a reflecting mirror device 160 (heated surface display means) and a control unit 190.

  The heated glass plate 110 has a single plate configuration having a plate glass 110a as a base material, and is formed in a rectangular shape in this embodiment. However, the shape is not limited to a rectangular shape, and an arbitrary shape considering a design effect or the like. May be adopted. Since the upper surface of the plate glass 110a is directly brought into contact with a heated object such as food or a cooking utensil such as frying as a cooking surface, tempered glass having an appropriate thickness is used. A heating layer 112 that generates heat when energized is formed on substantially the entire one surface (lower surface) of the heated glass plate 110. The heat generating layer 112 is typically a light-transmitting metal thin film and can be formed using a metal oxide such as tin, gold, silver, indium, zinc, or titanium.

  FIG. 4 shows a plan view seen from above the heated glass plate 110, and FIG. 5 shows a side view seen from the longitudinal direction. The upper surface of the plate glass 110a which is a base material is a cooking surface 118, on which a heated object such as food to be cooked is placed. As described above, the cooking surface 118 may be the surface of the plate glass 110a as it is, but since it is in contact with food and cooking utensils, a coating for preventing damage to the glass surface and improving familiarity with the food is appropriately applied. can do. An electrode 114 is provided on the heat generation layer 112. This electrode 114 has an elongated strip-shaped conductive member 114a and a covering material 114b for covering most of the conductive member 114a and preventing an accidental short-circuit accident or the like, as shown in FIGS. Along the both end portions of the heat generating layer 112 provided on the plate glass 110a, the heat generating layer 112 is provided over almost the entire width of the short side of the plate glass 110a, and the heat generating layer 112 between these two electrodes 114 is configured as a current path. Each electrode 114 is provided with an electrode terminal (not shown), and a lead wire 116 described later is connected thereto. In addition, as the electrode 114, in order to prevent the peeling and damage resulting from the difference in thermal expansion coefficient with the plate glass 110a, for example, an electrode having a wave structure as disclosed in Japanese Patent No. 3376544 is adopted. Can do.

  The lead wire 116 connects the electrode 114 of the heat generating layer 112 to the control unit 190. The control unit 190 has a function of receiving a power source current from the power source PS and supplying this to the heat generating layer 112 of the heated glass plate 110 as a controlled current. The control unit 190 can be configured as a power switch that can turn on and off the power supply current in the simplest manner. Or although illustration is abbreviate | omitted, the current variable means, such as a variable resistor, the controller which measures the temperature of the heating cooking surface 118 surface of the heating glass plate 110, and variably controls supply current according to the measurement result, overcurrent protection A security peripheral circuit such as a circuit can be provided as necessary. As the power source PS, a commercial AC power source (AC 100 V, 50/60 Hz) is generally used, but other power sources may be used depending on the use conditions. In this embodiment, as shown in FIGS. 1 to 3, the lead wire 116 connected to the electrode 114 is externally connected to a through hole 142 provided below a back plate 140 and a back support plate 150 b described later. Pulled out.

  The heated glass plate 110 is substantially horizontal on the upper surface of a pedestal formed by arranging and fixing a front support plate 150a, a back support plate 150b, a side support plate 150c, and a total of four in a cylindrical shape so as to exhibit a rectangular cross section when viewed from above. Placed on. Please refer to FIG. 6 and FIG. Each of the support plates 150a to 150c is a substantially rectangular visible light transmissive plate glass. As will be described later, since the surface temperature of the cooking surface 118 of the heated glass plate 110 reaches about 250 ° C., heat-resistant tempered glass is used for each of the support plates 150a to 150c. Further, in order to avoid the electrode 114 of the heated glass plate 110 from directly contacting each of the support plates 150a to 150c and to absorb the impact applied to the heated glass plate 110, the heated glass plate 110 and the support plates 150a to 150c. Between them, a substantially circular seat-shaped packing 150e is interposed. In the present embodiment, the external dimensions of the pedestal in which the support plates 150a to 150c are combined are configured to be slightly larger than the plate glass 110a of the heated glass plate 110 so that the heated glass plate 110 does not protrude from the outer peripheral edge. Has been. The support plates 150a to 150c combined in a cylindrical shape as described above form a closed space isolated from the outside air below the heated glass plate 110, thereby providing heat insulation against the outside air. The amount of heat generated by the layer 112 is difficult to be transmitted downward, and is efficiently transmitted to the cooking surface 118 through the plate glass 110a.

  A front plate 130, a back plate 140, and a side plate 120 are provided in close contact with the outer sides of the front support plate 150a, the back support plate 150b, and the side support plate 150c, respectively. That is, a total of four plates, the front plate 130, the back plate 140, and the side plate 120, each have visible light transmission, and are combined in a cylindrical shape so as to surround the support plates 150a to 150c. Configure. Therefore, the inside surrounded by the support plates 150a to 150c can be visually recognized from the side surface of the cooking device 100 of the present embodiment. 2 and FIG. 7, the front plate 130, the back plate 140, and the side plate 120 are generally thicker than the support plates 150a to 150c and the thickness of the glass plate 110a of the heated glass plate 110 and the packing. It is set to be higher by the sum of the thickness of 150e. Thereby, the surface of the heating cooking surface 118 of the heating glass plate 110 and the upper surfaces of the front plate 130, the back plate 140, and the side plates 120 are substantially flush with each other. The gaps between the side surface of the glass plate 110a of the heated glass plate 110 and the inner side surfaces of the front plate 130, the back plate 140, and the side plate 120 are filled with a material having both elasticity and heat resistance such as a silicone resin filler. . In addition, although illustration is abbreviate | omitted, in order to prevent the foodstuff and seasoning which are cooked along the outer periphery of the heating glass plate 110, or the outer surface upper edge of the said heating cooking appliance 100 from spilling out of an appliance. A wall-shaped frame body or the like can be appropriately installed.

  A reflecting mirror device 160 is installed in a space below each of the supporting plates 150a to 150c and below the heated glass plate 110. The reflecting mirror device 160 includes a flat mirror 160a and a support base 160b that supports the flat mirror 160a. In this embodiment, the side surface of the support base 160b is substantially triangular, and the plane mirror 160a is provided so as to be inclined downward at a predetermined angle from the back to the near side when viewed from the front plate 130 side. This inclination angle may be determined and set so that an observer in front of the front plate 130 can clearly see the heated surface of the heated object on the cooking surface 118 of the heated glass plate 110. The support base 160b is configured to be tiltable so that the tilt angle can be adjusted, as appropriate.

  In place of the reflecting mirror device 160, an image pickup means (not shown) such as a CCD camera is installed below the heating glass plate 110 so that the heated surface of the object to be heated is reflected, and the image is displayed to an external monitor device or the like. It is good also as a structure which can send out a signal.

  Moreover, although illustration is abbreviate | omitted, you may provide the appliance which illuminates this to-be-heated surface inside this cooking utensil so that the image of the to-be-heated surface reflected on the plane mirror 160a or CCD camera may become clearer.

  According to the cooking device of the present embodiment having the above-described configuration, an object to be heated such as food can be cooked on the heated glass plate 110 while looking at the surface to be heated on the back side of the object to be heated. .

<< Second Embodiment >>
A cooking device according to the second embodiment of the present invention is shown in FIGS. 8 is a plan view seen from above the cooking device 200, FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. 8, and FIG. 10 is a cross-sectional view taken along the line XX in FIG. Since the basic configuration of the present embodiment is the same as that of the first embodiment described above, the different parts will be mainly described. Note that the same or corresponding components are denoted by the same reference numerals in the last two digits.

  As shown in FIGS. 8 to 10, the cooking device 200 of this embodiment includes a heated glass plate 210 that is arranged substantially horizontally, and a front support that supports the heated glass plate 210. A plate 250a, a back support plate 250b, a side support plate 250c, a front plate 230, a back plate 240, and a side plate 220 disposed so as to be in close contact with and surround the outer surfaces of these support plates; The reflector device 260 is mainly provided. Since the supply current control unit is the same as that in the first embodiment, the illustration thereof is omitted.

  The heated glass plate 210 of the present embodiment has a configuration in which a heat generating layer 212 is sandwiched between an upper plate glass 210a and a lower plate glass 210b as a base material. More specifically, a laminated glass structure in which a heat generating layer 212 and an intermediate film are bonded to each other between the upper glass plate 210a and the lower glass plate 210b can be formed, and the upper glass plate 210a and the lower glass plate 210a are sandwiched between the heat generating layer 212. The plate glasses 210b may be overlapped, and the periphery of the two plate glasses 210a and 210b may be sealed with a covering material and fixed. The planar shape of the heated glass plate 210 is not limited to the illustrated rectangle, and an arbitrary shape that takes into account the design effect and the like may be employed. As the plate glasses 210a and 210b, tempered glass having an appropriate thickness is used. As described above, the heat generating layer 212 is formed between the glass plates 210a and 210b to generate heat when energized over substantially the entire surface.

  FIG. 13 is a plan view seen from above the heated glass plate 210, and FIG. 14 is a side view seen from the longitudinal direction. An upper surface of the upper glass plate 210 a is a cooking surface 218. As is clear from FIGS. 9 and 10, the outer dimension of the lower glass sheet 210b is slightly smaller than that of the upper glass sheet 210a, and is on both sides in the longitudinal direction of the lower surface of the upper glass sheet 210a and from the outer edge of the lower glass sheet 210b. The strip-shaped electrodes 214 are provided in the protruding narrow portions so as to be electrically connected to the heat generating layer 212, respectively. A portion including a portion where the electrode 214 is provided, and a stepped portion at the outer peripheral edge of the upper glass plate 210a and the lower glass plate 210b is filled and sealed with a non-conductive covering material 214a. Each electrode 214 is provided with an electrode terminal (not shown), and a lead wire 216 is connected to the electrode terminal 214 to connect the heat generating layer 212 to a control unit and a power source (not shown).

  The heated glass plate 210 has a front support plate 250a, a back support plate 250b, a side support plate 250c, and a total of four plates arranged in a cylindrical shape so as to have a rectangular cross section when viewed from above. Placed on. Please refer to FIG. 11 and FIG. Each of the support plates 150a to 150c is a heat-resistant tempered glass plate having a substantially rectangular visible light transmittance. A substantially block-like packing 250e is interposed between the heating glass plate 210 and the support plates 250a to 250c. In the present embodiment, the outer dimensions of the pedestal in which the support plates 250a to 250c are combined are slightly larger than the upper glass 210a of the heated glass plate 210 so that the heated glass plate 210 does not protrude from the outer peripheral edge. It is configured. As in the case of the first embodiment, the amount of heat generated by the heat generation layer 212 of the heated glass plate 210 is hardly transmitted downward by the support plates 250a to 250c combined in a cylindrical shape in this way, and is heated through the plate glass 210a. Efficiently transmitted to the cooking surface 218.

  A front plate 230, a back plate 240, and a side plate 220 are provided outside the front support plate 250a, the back support plate 250b, and the side support plate 250c, respectively, and each of them is visible light transmissive. The inside of the cooking device 200 can be viewed from the side. Similar to the first embodiment, the surface of the cooking surface 218 of the heated glass plate 210 and the upper surfaces of the front plate 230, the back plate 240, and the side plates 220 are substantially flush. The gaps between the side surfaces of the upper glass 210a of the heating glass plate 210 and the inner surfaces of the front plate 230, the back plate 240, and the side plate 220 are sealed with a sealing material having both elasticity and heat resistance such as silicon resin. Yes.

  A reflecting mirror device 260 is installed in the space below each of the supporting glass plates 250a to 250c and below the heating glass plate 210. The reflecting mirror device 260 includes a plane mirror 260a and a support base 260b that supports the plane mirror 260a, and a universal joint 260c including a spherical joint is interposed between the plane mirror 260a and the support base 260b. Accordingly, the angle of the plane mirror 260a can be freely changed around the universal joint 260c. For example, if the plane mirror 260a is inclined toward the front plate 230, a person in front of the cooking device 200 can observe the heated surface of the heated object. In addition, if the plane mirror 260a is tilted toward the left and right sides or rearward, a person on the left and right side surfaces or the back side of the cooking device 200 can observe the heated surface.

  Thus, according to the cooking device of the present embodiment having the above-described configuration, the object to be heated such as food is cooked while looking at the surface to be heated on the heated glass plate 210 which is the back side of the object to be heated. Moreover, the surface to be heated can be observed from various directions around the cooking device 200 by changing the inclination direction of the reflector device 260 in various ways.

<< Third Embodiment >>
A cooking device according to a third embodiment of the present invention is shown in FIGS. 15 is a front sectional view of the cooking device 300, FIG. 16 is a partially enlarged sectional view of FIG. 15, FIG. 17 is a side view of the cooking device 300, and FIG. 17 is a plan view of the cooking device 300 as viewed from above. . As in the case of the second embodiment, components different from those of the first and second embodiments will be mainly described. The same or corresponding constituent parts are indicated by the same reference numerals in the last two digits.

  As shown in FIGS. 15 to 17, the cooking device 300 of this embodiment includes a heating glass plate 310 that is arranged substantially horizontally and four supporting the heating glass plate 310. The support leg 320 and the reflecting mirror device 360 are mainly provided. Since the supply current control unit is the same as in the first and second embodiments, the illustration thereof is omitted.

  The heated glass plate 310 of the present embodiment has a double-glazed structure in which an air layer 310c is provided between an upper plate glass 310a and a lower plate glass 310b as a base material. The planar shape is not limited to the illustrated rectangle, and any shape that takes into account the design effect and the like may be adopted. As the plate glasses 310a and 310b, tempered glass having an appropriate thickness is used. A heat generation layer 312 is formed on the lower surface of the plate glass 310a to generate heat when energized over substantially the entire surface.

  The upper surface of the upper glass plate 310a is a cooking surface 318. Band-like electrodes 314 are provided on both sides in the longitudinal direction of the lower surface of the upper glass plate 310 a so as to be electrically connected to the heat generating layer 312. About the installation part of the electrode 314, it fills with the sealing material 315 of an appropriate material so that between the upper glass plate 310a and the lower glass plate 310b may be sealed, and the electrode 314 is coat | covered. Spacers 319 each having a substantially hollow rectangular bar shape are interposed inside the electrodes 314. The space between the upper plate glass 310a and the lower plate glass 310b is maintained to secure an air layer 310c, and the spacer 319 is provided inside. The desiccant is loaded to suppress the humidity of the air layer 310c. Each electrode 314 is provided with an electrode terminal (not shown), and a lead wire (not shown) is connected to the electrode 314, so that the heat generating layer 312 is connected to a control unit and a power source (not shown). In addition, the heated glass plate 310 of the multilayer glass configuration of the present embodiment may be used together with the support plates 150a to 150c or 250a to 250c combined in a cylindrical shape as described in the first and second embodiments. it can. In this case, in addition to the heat insulating effect by the cylindrical support plate as described above, the heat insulating effect by the air layer 310c of the heated glass plate 310 is also obtained, so that the heat generated by the heat generating layer 312 is more efficiently heated. It is transmitted to the cooking surface 318.

  Returning to the description of the present embodiment, the heated glass plate 310 is supported in the form of a table top plate by support legs 320 whose four corners are substantially prismatic. As is apparent from FIGS. 15 and 17, each support leg 320 is provided with a receiving frame 370c having an L-shaped cross section and a substantially rectangular plane on the front surface of the top, and a heated glass plate is formed by the receiving cushion 370b and the lateral cushion 370a. The four sides of 310 are supported. If the lead wire (not shown) is pulled out from the electrode terminal portion of the electrode 314 and then wired so as to be taken out from the base portion of the support leg 320 through the inside of any of the support legs 320, it is not disturbed and the appearance is preferable. .

  In the space below the heated glass plate 310, a reflecting mirror device 360 is installed. The reflecting mirror device 360 includes two plane mirrors 360a1 and 360a2 and support bases 360b1 and 360b2 for supporting them. As shown in FIG. 16, the two plane mirrors 360a1 and 360a2 are combined so as to form a substantially V-shaped side section opened upward at a predetermined angle, and the support bases 360b1 and 360b2 and These are respectively fixed by a base plate 380 which is fixedly fixed. In the present embodiment, the angle formed by the two plane mirrors 360a1 and 360a2 is about 90 degrees, and the abutting portion (V-shaped apex) is set to a position that substantially coincides with one outer edge of the heated glass plate 310. . Therefore, the reflected image from the plane mirror 360a1 directly below the heated glass plate 310 that captures the image of the heated surface is further reflected substantially upward by the plane mirror 360a2 facing the V-shape, and 2 from above the heated glass plate 310. The heated surface can be observed through the single plane mirrors 360a1 and 360a2. Note that the support bases 360b1 and 360b2 can be tilted so that the angle can be adjusted as appropriate.

  Thus, according to the cooking device of the present embodiment having the above-described configuration, the object to be heated such as food is cooked on the heated glass plate 310 while looking at the surface to be heated on the back side of the object to be heated. In particular, since it can be observed from above the heated glass plate 310, it is suitable for an application in which cooking is performed while viewing the state of the heated surface.

"Experimental result"
An experimental cooking device having a configuration substantially corresponding to the configuration of the first embodiment described above was manufactured, and it was confirmed whether or not the performance of heating to a practical temperature required for cooking of normal foods could be obtained. FIG. 18 schematically shows a schematic configuration and experimental results of the experimental cooking device.

(1) Configuration of experimental cooking device for heating A heated glass plate having the same single-plate configuration as in the first embodiment of the present application (the reinforced plate glass of the base material is 214 mm × 358 mm in length and width, 5 mm in thickness) is supported. The pedestal to be used was constituted by three plates of glass having a thickness of 5 mm and firmly attached with heat-resistant tape so as to support the three sides of the heated glass plate. And the side plate comprised so that the said pedestal might be enclosed also by the heat-resistant tempered glass of 3 sheets so that the one side which the pedestal opened was plugged. The height of the heated glass plate to the cooking surface was about 155 mm.

(2) Experimental results A voltage of DC 130 V was applied to the heat generation layer of the heated glass plate, and the temperature of each part after 1 hour from the start of energization was measured. The temperature measurement position is indicated by a cross.
(A) Cooking surface of heated glass plate The central portion of the heated glass plate is about 250 ° C, and the peripheral portion is 220 to 230 ° C, so the temperature of 180 ° C or higher required for general food cooking Was sufficiently obtained and it was confirmed to have practical performance.
(B) Below the heated glass plate The bottom surface of the heated glass plate is about 70 to 120 ° C, but if it is about 10 cm below it, the temperature will remain at about 40 to 60 ° C, so it can be used safely. confirmed.

It is a figure which shows 1st Embodiment of this invention, and is the top view seen from the upper direction of the heating glass plate. It is II-II arrow sectional drawing of FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1. It is a top view of the heating glass plate which concerns on 1st Embodiment of this invention. It is a side view of the heating glass plate which concerns on 1st Embodiment of this invention. It is a top view which shows the structure of the support plate which concerns on 1st Embodiment of this invention. It is a side view which shows the structure of the support plate which concerns on 1st Embodiment of this invention. It is a figure which shows 2nd Embodiment of this invention, and is the top view seen from the upper direction of the heating glass plate. It is IX-IX arrow sectional drawing of FIG. It is XX arrow sectional drawing of FIG. It is a top view which shows the structure of the support plate which concerns on 2nd Embodiment of this invention. It is a side view which shows the structure of the support plate which concerns on 2nd Embodiment of this invention. It is a top view of the heating glass plate which concerns on 2nd Embodiment of this invention. It is a side view of the heating glass plate which concerns on 2nd Embodiment of this invention. It is front sectional drawing which shows 3rd Embodiment of this invention. It is a partial expanded sectional view of FIG. It is a side view which shows 3rd Embodiment of this invention. It is a figure which shows 3rd Embodiment of this invention, and is the top view seen from the upper direction of the heating glass plate. It is a schematic diagram which shows the experimental result by the heating cooker for experiment.

Explanation of symbols

100, 200, 300 Cooking device 110, 210, 310 Heated glass plate 110a, 210a, 310a, 210b, 310b Plate glass 112, 212, 312 Heating layer 310c Air layer (of heated glass plate 310)
160, 260, 360 Reflector apparatus (heated surface display means)
150a, 150b, 150c, 250a, 250b, 250c Support plate 190 Control unit

Claims (9)

A cooking device for cooking food,
A heat generating layer that generates heat when energized is provided on the lower surface of the plate glass serving as the base material, and the object to be heated placed on the upper surface is heated via the plate glass by the heat generated by the heat generating layer. Heated glass plate,
Heated surface display means for displaying the state of the heated surface of the heated object placed on the upper surface of the heated glass plate in a visible manner;
A cooking device characterized by comprising a cooking device.   The heated glass plate is configured as a multi-layer glass including a lower plate glass that is fixedly contacted with the plate glass with a gap therebetween to form an air layer between the heated glass plate and the heating layer. 1. The cooking utensil according to 1.   The heated surface display means includes a reflecting mirror that reflects an image of the heated surface and receives the image of the heated surface on the outer side of the heated glass plate. The cooking device according to claim 1 or 2.   The said cooking mirror is comprised so that the angle with respect to the to-be-heated surface of the reflective surface may be changed, The heating cooking appliance of Claim 3 characterized by the above-mentioned.   The cooking device according to claim 3, further comprising a second reflecting mirror that further reflects an image of the heated surface reflected by the reflecting mirror so that the image can be viewed from a desired location.   The cooking device according to claim 1 or 2, wherein the heated surface display means includes imaging means capable of capturing an image of the heated surface and outputting the image as a video signal.   7. The apparatus according to claim 1, further comprising a control unit capable of adjusting a current value and / or energization time of the current supplied to the heating layer of the heated glass plate. Cooking utensils.   It has a temperature measuring means for measuring the temperature of the cooking surface, and inputs a measurement result of the temperature measuring means to the control unit to control a current value or energization time in the control unit. The cooking device according to claim 7.   The cooking device according to any one of claims 1 to 8, wherein a coating layer suitable for cooking a specific food is applied to the cooking surface of the heating glass plate.

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