WO2018235354A1

WO2018235354A1 - Heating cooker

Info

Publication number: WO2018235354A1
Application number: PCT/JP2018/009722
Authority: WO
Inventors: 秀樹 ▲吉▼川; 幸男川田; 毅齊藤; 杉山　直也; 佳寛 ▲高▼橋; 智也蜷川; 大聡伊藤; 明日香入山; 利弘齋藤
Original assignee: 三菱電機株式会社; 三菱電機ホーム機器株式会社
Priority date: 2017-06-21
Filing date: 2018-03-13
Publication date: 2018-12-27
Also published as: JPWO2018235354A1; JP6932191B2

Abstract

This heating cooker is provided with: a heating cooker body; and a lid which covers the upper space of the heating cooker body in an openable/closable manner, wherein a bottom plate, on which an object to be heated is placed and which uses heat conduction to heat the object to be heated is horizontally arranged on the upper surface of the heating cooker body, and a heating chamber top plate for using radiant heat to heat the object to be heated from a position facing the bottom plate is horizontally arranged on the lid. The heating cooker is also provided with heating devices which respectively heat the bottom plate and the heating chamber top plate, and a control device which controls the heating device, wherein: while the lid is closed, the bottom plate and the heating chamber top plate form a closed heating chamber in which the object to be heated is heated from above and below; a gap is ensured between the upper surface of the object to be heated and the heating chamber top plate in consideration of the thickness of the object to be heated; and the lid overlaps on top of the heating cooker to thereby maintain the sealing of the heating chamber.

Description

Cooker

The present invention relates to a heating cooker that heats bread and the like.

In a conventional common oven toaster, rod-like heaters made of quartz tubes, halogens, carbon, etc. are horizontally disposed above and below the heating chamber as a heat source, and a bread pan or the like is placed between the upper and lower heaters. It is the structure by which the cooking net is arrange | positioned (for example, refer patent document 1).

Then, such an oven toaster heats the bread placed on the cooking net by the radiant heat of the upper and lower heaters.

Patent No. 1422823

Since the conventional oven toaster like patent document 1 heats a bread only by radiant heat, the water | moisture content of the inside of a bread was easy to lose | removed, and the subject that the whole bread became a toast which was dried had occurred. In addition, the atmosphere temperature in the cooking chamber (heating chamber) with a much larger volume compared to the volume of the bread is raised, and the heating air temperature is also used to heat the bread, which is the part facing the cooking net. There was a problem that it was hard to put on the grill and it was easy to get uneven baking on toast.

The present invention has been made to solve the above problems, and when the object to be heated is bread, it is possible to maintain the water content inside the bread and to cook it to a toast with little uneven baking. The purpose is to provide

According to a first aspect of the present invention, there is provided a heating cooker comprising: a bottom plate for transferring heat to the object to be heated in contact with or close to a lower surface of the object; a bottom heating device for heating the bottom plate; A heating chamber top plate that covers the upper space of the bottom plate so as to open and close, a top heating device that heats the heating chamber top plate, and a control device that controls the bottom heating device and the top heating device When the heating chamber top plate covers the upper space of the plate, a heating chamber shielded from the outside is formed between them, and the bottom plate is the heating object accommodated in the heating chamber. The object is heated from below, and the heating chamber top plate radiates radiant heat to the object to be heated.

A heating cooker according to a second aspect of the present invention is a heating cooker main body incorporating a flat first heating surface wider than a planar range of the heating target for placing the heating target; A lid which is openably and closably supported by the cooking unit body and which is provided with a second heating surface and which forms a heating chamber with the first heating surface in a closed state, the first heating surface, and A controller for controlling heating by the second heating surface, the second heating surface faces the first heating surface, and is flat and wider than a planar range of the object to be heated In the state where the lid is closed, the second heating surface is in a state in which a narrow space is placed close to the object to be heated, and the periphery of the lid and the heating cooker main body In a sealed state in which the heating chamber is heated by the first and second heating surfaces by It is configured to be between.

According to the heating cooker according to the present invention, when the object to be heated is bread, the moisture inside the bread can be maintained, and the baking unevenness can be reduced and baked.

It is a front view which shows the external appearance of the heating cooker which concerns on Embodiment 1 of this invention. It is the perspective view which showed the heating cooker which concerns on Embodiment 1 of this invention in the state which open | released the cover body. It is a longitudinal cross-sectional view of the heating cooker which concerns on Embodiment 1 of this invention. It is a longitudinal cross-section schematic diagram of the heating cooker which concerns on Embodiment 1 of this invention. It is the longitudinal cross-section schematic of another example to which the principal part of the heating cooker which concerns on Embodiment 1 of this invention was expanded. It is a top view of the bottom plate of the heating cooker which concerns on Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a functional block diagram of the heating cooker which concerns on Embodiment 1 of this invention. It is the schematic diagram which planarly viewed the bottom plate in which the square-shaped baking pan which concerns on Embodiment 1 of this invention was mounted. It is the schematic diagram which planarly viewed the bottom plate in which the mountain-shaped baking pan which concerns on Embodiment 1 of this invention was mounted. It is a figure which shows the circuit structure of the electricity supply range switching apparatus based on Embodiment 1 of this invention. It is a schematic diagram of another example which planarly viewed the bottom plate in which the square-shaped baking pan which concerns on Embodiment 1 of this invention was mounted. It is a longitudinal cross-sectional view which shows the principal part of the cover body of the heating cooker which concerns on Embodiment 2 of this invention. It is a longitudinal cross-sectional view which shows the principal part of the cover body of the heating cooker which concerns on Embodiment 3 of this invention. It is the schematic diagram which planarly viewed the bottom plate in which the square-shaped baking pan which concerns on Embodiment 3 of this invention was mounted. It is a front view which shows the external appearance of the heating cooker which concerns on Embodiment 4 of this invention. It is a longitudinal cross-sectional view of the heating cooker which concerns on Embodiment 4 of this invention. It is the perspective view which showed the heating cooker which concerns on Embodiment 5 of this invention in the state which open | released the cover body. It is a longitudinal cross-section schematic diagram of the heating cooker which concerns on Embodiment 6 of this invention. It is a longitudinal cross-section schematic diagram of the heating cooker which concerns on Embodiment 7 of this invention. It is a longitudinal cross-section schematic diagram of the heating cooker which concerns on Embodiment 8 of this invention. It is a schematic diagram which shows the dimensional relationship of the 1st heating surface, the 2nd heating surface, and to-be-heated material of the heating cooker which concerns on Embodiment 9 of this invention. It is the perspective view which showed the heating cooker to which the modification of embodiment of this invention was applied in the state which open | released the cover body.

Hereinafter, embodiments of the present invention will be described based on the drawings. The present invention is not limited by the embodiments described below. Moreover, in the following drawings, the relationship of the magnitude | size of each structural member may differ from an actual thing.

Embodiment 1
1 to 11 show a heating cooker 100 according to Embodiment 1 of the present invention. FIG. 1 is an external front view of a heating cooker 100 according to Embodiment 1 of the present invention. FIG. 2 is an external perspective view of the heating cooker 100 according to Embodiment 1 of the present invention in a state in which the lid 20 is opened. FIG. 3: is a longitudinal cross-sectional view of the heating cooker 100 which concerns on Embodiment 1 of this invention.

As shown in FIGS. 1 to 3, the heating cooker 100 according to the first embodiment is pivotable to the heating cooker main body 10 and the hinge portion 19 on the back (rear) side of the heating cooker main body 10. It is supported and it is comprised by the cover body 20 which covers the upper space of the heating cooker main body 10 openably / closably.

In FIG. 1, the (upper and lower) boundary line PL at which the lid 20 is open with respect to the heating cooker body 10 is slightly below the center in the height direction of the heating cooker. The direction indicated by the arrow “up” in FIG. 1 is the height direction of the heating cooker 100. Conversely, the direction indicated by the arrow "down" is the downward direction. The boundary line PL is intermediate between a first polymerization surface P1 described later and a second polymerization surface P2.

The heating cooker main body 10 includes a bottom plate 11, a bottom heating device 12 (heating source), a temperature detection device 13, a power supply substrate 14, an operation unit 15, an operation substrate 16, and a lid in addition to the hinge portion 19. A body open / close detection device 97 (see FIG. 6) and a control device 50 are provided. The lid 20 covers the space above the bottom plate 11 so as to open and close freely.

The lid 20 is a user (user) when lifting the front side of the heating chamber top plate 21, the heating chamber side wall 22, the upper surface heating device 23 (heating source), the sealing member 24, and the lid 20. Has a handle 25 for holding or holding a fingertip. Reference numeral 20A denotes a lid case constituting the outer shell of the lid 20, which is integrally formed of plastic or the like. Reference numeral 19A denotes a hinge case constituting an outer shell of the hinge portion 19, which is formed of a material having high rigidity such as metal, disposed under the rear of the lid case 20A, and fixed to the lid case 20A There is.

As shown in FIG. 2, the operation portion 15 is on the front side of the heating cooker main body 10, and the hinge portion 19 (see FIG. 3) is disposed on the rear side. Therefore, as shown in FIG. 2, the lid 20 can be opened until it becomes vertically above the heating cooker main body 10 while the rear side is rotatably supported by the hinge portion 19. In addition, the heating cooker main body 10 can support the lid 20 by its weight and can not fall backward even if in this state it may be inclined backward to some extent beyond the vertical state.

The direction shown by the arrow in FIG. 2 as "front" is the front direction of the heating cooker. Conversely, the direction indicated by the arrow "rear" is the rear. Similarly, the arrow direction "right" indicates the right direction, and "left" indicates the left direction. Also in the following description, the heating cooker body 10 of the present invention will be described according to the definition in the front-rear and left-right directions.

As shown in FIG. 2, the heating cooker 100 includes a heating cooker main body 10 disposed to expose the bottom plate 11 at the upper surface, and a lid disposed to expose the heating chamber top plate 21 to the lower surface. It has 20 and.
The upper surface of the heating cooker main body 10 has a first polymerization surface P1 surrounding the front, rear, left and right of the bottom plate 11, and the lower surface of the lid 20 has the heating chamber when viewed from above It is the structure which has the 2nd superposition | polymerization surface P2 which surrounded the front and rear, right and left of the top plate 21. FIG.

In FIG. 2, XR, XL, XF, and XB indicate the width of the first polymerization surface P1 or the width in the front-rear direction. That is, the widthwise dimension of the first polymerization surface P1 is XR on the right side of the bottom plate 11, and XL on the left side.
Similarly, at the rear of the bottom plate 11, the width dimension of the first polymerization surface P1 is XB in the front-rear direction, and the front width dimension is XF. These dimensions XR, XL, XF and XB are at least 10 mm or more in the first embodiment.

Then, in a state where the heating chamber top plate 21 of the lid 20 is overlapped to cover the upper surface of the heating cooker main body 10, as shown in FIG. 3, the first overlapping surface P1 and the second overlapping surface P1 The polymerization surfaces P2 face each other across the "minute gap". That is, the first polymerization surface P1 and the second polymerization surface P2 are positioned close to each other, and the internal space of the heating chamber 40 described later is shielded from the outside. Here, "a state of being shut off from the outside" does not mean an airtight state in which the movement of air is not permitted at all, but means a degree of not allowing air to circulate actively. When the temperature of the inside of the heating chamber 40 becomes high and the volume of the air inside expands, the air inside the heating chamber 40 naturally leaks to the outside along with this, the state being “closed from outside” ". The above "minute gap" is 3 mm or less in the first embodiment. Moreover, the meaning of "space in a sealed state (heating chamber)" and "space in a state shielded from the outside (heating chamber)" are the same unless otherwise noted.

In FIG. 2, YR, YL, YF, and YB indicate the width of the second polymerization surface P2 or the width in the front-rear direction. Each of these dimensions YR, YL, YF and YB is at least 10 mm or more in the first embodiment.

The bottom plate 11 is provided on the upper surface of the heating cooker main body 10, on which an object 30 to be heated such as bread is placed. The bottom plate 11 is made of, for example, a metal plate having high thermal conductivity (compared to general iron) such as aluminum or copper. Also, in order to increase the thermal efficiency of the bottom plate 11, at least the lower surface side of the bottom plate 11 is coated with a black heat-resistant coating. In addition, when it says "toast" after that, unless otherwise indicated, it means the foodstuff which heated the sliced bread and lightly browned the surface.

The bottom plate 11 has a shallow plate shape provided with a large flat portion 11C (see FIG. 5) except for the outer peripheral portion, and the upper surface of the flat portion 11C may be referred to as a "first heating surface". . The first heating surface 11C is generally horizontal.

The lower surface of the article to be heated 30 is in direct contact with the first heating surface 11C, and the heat from the bottom heating device 12 is transmitted. Note that the “first heating surface” is not formed of a breathable object such as a net or a punching metal. It is formed of a non-air-permeable material, and as described above, as one example, the whole is formed of a thin metal plate, so that it has a structure that does not allow air, fine pieces of bread, scraps and the like to pass through at all.

As shown in FIG. 3, the bottom heating device 12 is provided close to or in close contact with the bottom surface of the bottom plate 11 and heats the bottom plate 11. For this reason, when the temperature of the bottom plate 11 rises, the object 30 is heated from below by the heat conduction from the bottom plate 11.
That is, in this embodiment, the bottom plate 11 receives the heat from the bottom heating device 12 and becomes entirely hot, and radiates radiant heat from the entire top surface. For this reason, the object to be heated 30 functions as a single flat heating element.

The bottom heating device 12 is, for example, a planar heater, and as the planar heater, a sheet heater obtained by winding an electric tropical on a mica plate for securing electric insulation, and the electric tropical sandwiched by ceramics There is a ceramic heater etc. formed. There are various types of planar heaters, such as a form in which heating heating wires are arranged in a grid with a mica plate interposed, a form in which many heating wires are arranged side by side at intervals and spread on a mica plate. By making the bottom surface heating device 12 a planar heater, the heating cooker main body 10 can be miniaturized, and uniform heating of the object to be heated 30 can be performed, so that uneven baking can be reduced.

In FIG. 3, the temperature detection device 13 is provided on the lower surface side of the bottom plate 11 to detect the temperature of the bottom plate 11. The temperature detection device 13 includes, for example, a temperature sensor such as a thermistor in contact with the lower surface of the bottom plate 11, and a temperature detection circuit (not shown) for transmitting a temperature detection signal from the temperature sensor to a control device 50 described later. Is equipped. The heat sensitive part of the temperature sensor is in direct contact with the lower surface of the bottom plate 11 or in contact via a heat resistant insulating material.

In FIG. 3, the power supply substrate 14 is provided on the back side inside the heating cooker body 10, and a circuit for supplying power to the bottom heating device 12 and the top heating device 23 is mounted.

In FIG. 3, reference numeral 79 denotes a main body case which constitutes the outer shell of the heating cooker main body 10, and is formed of a plastic material.

Next, the structure of the heating chamber 40 and the periphery thereof will be described.
When the lid 20 is closed so as to overlap the upper surface of the heating cooker body 10, a space of a fixed volume is created between the upper surface of the bottom plate 11 and the heating chamber top plate 21. That is, as shown in FIG. 3, the space of the effective height dimension H2 is the heating chamber 40. Since the heating chamber side wall 22 which is perpendicular to the entire circumference in a plan view of the heating chamber top plate 21 is continuous, when a certain range of thickness of bread is placed on the bottom plate 11, the bread A certain degree of air gap H1 is formed between the upper surface of the heating chamber 40 and the ceiling surface of the heating chamber 40.

The heating chamber top plate 21 is entirely formed by press molding a thin plate made of a metal having high thermal conductivity such as aluminum or the like. The heating chamber side wall 22 described later is also integrally formed by press molding.

The heating chamber top plate 21 is also referred to as a "second heating surface". As is apparent from the above description, the second heating surface is entirely formed of a metal plate, is non-air-permeable, and is horizontally installed.
The first heating surface 11 C and the second heating surface 21 have the same facing distance over the whole. That is, since the first heating surface 11C and the second heating surface 21 are parallel to each other, the effective height dimension H2 of the heating chamber 40 described above is substantially the entire area of the first heating surface 11C. Are secured over the

As shown in FIG. 3, the lid 20 has a recess 26 (see FIG. 2) in which the central portion is recessed upward. The heating chamber top plate 21 is provided at the central portion of the lid 20 and forms the upper surface of the recess 26. The heating chamber side wall 22 is provided on the inner side surface of the lid 20 and forms the side surface of the recess 26. That is, most of the heating chamber 40 is formed inside the lid 20 by the recess 26. The remaining part of the heating chamber 40 is formed on the bottom plate 11. In other words, the heating chamber 40 is formed in the inside of the lid 20 and the inside of the heating cooker main body 10 in an overlapping state.

Further, in order to increase the thermal efficiency of the heating chamber top plate 21, at least the upper surface side of the heating chamber top plate 21 is coated with a black heat-resistant coating.

The upper surface heating device 23 is provided on the upper surface side of the heating chamber top plate 21 and heats the heating chamber 40 by heating the heating chamber top plate 21, and the object to be heated is heated by radiation heat from the heating chamber top plate 21. Heat 30 from above. The top heating device 23 is, for example, a planar heater similar to the bottom heating device 12 and is disposed to be close to or in close contact with the top surface of the heating chamber top plate (second heating surface) 21. That is, in this embodiment, the heating chamber top plate (second heating surface) 21 receives the heat from the upper surface heating device 23 and the whole becomes high temperature, and is directed downward of the heating chamber 40 described later. Radiant heat is emitted from the whole. For this reason, it acts as a planar heating element for the object 30 to be heated.

The seal member 24 is provided continuously along the lower end of the heating chamber side wall 22 with a constant width. In other words, when viewed in a plan view, it is provided over the entire first polymerization surface P1 so as to surround the front and rear and the left and right of the recess 26 of the lid 20. The sealing member 24 protrudes a few mm downward from the second polymerization surface P2 over the entire length, and in close contact with the upper surface of the peripheral portion 11A of the bottom plate 11 when the lid 20 is closed, the sealing degree Form a high-temperature heating chamber 40. The seal member 24 is made of, for example, silicone rubber, and therefore is flexible. When the seal member 24 is in close contact with the upper surface of the peripheral portion 11A of the bottom plate 11, the lower end portion of the seal member 24 is deformed.

In the first embodiment, the heating chamber 40 having a high degree of sealing is formed using the seal member 24. However, the present invention is not limited to this, and a labyrinth structure is provided instead of the seal member 24 and the labyrinth structure is provided. The heating chamber 40 with a high degree of sealing may be formed to be used. For example, a groove may be formed in one of the first polymerizing surface P1 and the second polymerizing surface P2, and the other may be provided with a convex shape so as to be fitted into the groove while maintaining a minute gap.

In FIG. 3, reference numeral 42 denotes a first upper case having a rectangular planar shape, which is formed by press-forming a thin metal plate. The outer peripheral edge portion 42A of the first upper case 42 is overlapped on the upper surface of the upper surface heating device 23 which is overlapped so as to be in close contact with the ceiling portion of the heating chamber top plate 21. Reference numeral 42S denotes a sealed space formed between the upper surface of the heating chamber top plate 21 and the lower surface of the first upper case 42.

In FIG. 3, reference numeral 43 denotes a second upper case having a rectangular planar shape, and is formed by press-forming a thin metal plate. The outer peripheral edge 43A of the second upper case 43 is superimposed on the outer peripheral edge 42A of the first upper case 42.

In FIG. 3, reference numeral 44 denotes a fixing screw provided so as to penetrate the central portion of the first upper case 42 and the second upper case 43. 45 is a heat insulating material formed of a heat insulating material having high electrical insulation and heat insulation, and is made of, for example, glass wool. The screw 44 is fixed upward so as to pass through the central portion of the first upper case 42 and the second upper case 43 from the side of the heat insulating material 45 as shown in FIG. 3. The heat insulating material 45 is installed in a state of being slightly compressed in the vertical direction so as to fill the gaps 49 between the first upper case 42 and the heating chamber top plate 21 without gaps except for the peripheral portions thereof. ing.

In FIG. 3, a support frame 46 is a ring (hollow cylinder) shaped support frame formed so as to surround the entire periphery of the heating chamber side wall 22 and is entirely made of heat-resistant plastic. 46A is the lower surface of the support frame 46, and this lower surface forms the second polymerization surface P2.

Next, various gaps and spaces in the inside of the lid 20 will be described.
In FIG. 3, G1 is a first air gap formed between the rear end face of the medium-sized bread pan placed on the bottom plate 11 and the heating chamber side wall 22 on the rear side. As will be described later, the bread size includes "Yamagata bread", "Square bread", etc., and the outer dimensions change according to the type of these breads, but the usual "Yamagata bread" or "Square When the bread pan is placed on the first heating surface 11C of the bottom plate 11, the planar size of the heating chamber 40 is set so as to secure the first gap G1.

G2 is a second space formed between the rear end face of the bread and the heating chamber side wall 22 on the front side when the bread having a normal size is accommodated. That is, the effective length in the front-rear direction of the heating chamber 40 is dimensioned so as not to contact the heating chamber side wall 22 either forward or backward when a normal size bread is accommodated. Similarly, although not shown, the effective length in the left-right direction of the heating chamber 40 is dimensioned so as not to contact the heating chamber side wall 22 on the right side or the left side when a normal size bread is accommodated. It has become. Further, the first gap G1 and the second gap G2 also relate to the presence of inclined portions (inclined surfaces) 11B around the first heating surface 11C (front and rear, right and left) in the bottom plate 11. If the dimensions of the inclined portion 11B in the front-rear and left-right directions are large, the first and second gaps G1 and G2 also become large.

In FIG. 3, G 3 is a third air gap formed between the end surface of the support frame 46 in the front in the vertical state and the side wall on the front side of the lid 20. G4 is a fourth air gap formed between the end face of the wall in the vertical state, which is also behind the support frame 46, and the side wall on the rear side of the lid 20. Although not shown, the right and left sides of the support frame 46 also have an air gap between the side wall surface of the cover 20, so that the cover 20 of the entire periphery of the support frame 46 is eventually obtained. There is an air gap between the side wall surfaces.

In FIG. 3, G 5 is a fifth gap formed between the end surface of the vertical wall surface formed on the support frame 46 and the front, rear, left and right outer wall surfaces of the heating chamber side wall 22. With the fifth gap G5 and the third and fourth gaps G3 and G4, heat insulation is provided to the lid 20 serving as the outer shell of the heating cooker 100 before and after and to the left and right of the heating chamber side wall 22. It can be enhanced.

In FIG. 3, G 6 is a sixth air gap formed between the upper surface of the second upper case 43 and the upper wall surface (the ceiling wall surface) of the lid 20. The heat insulating property of the second upper case 43 can be enhanced with respect to the lid 20 as the outer shell of the heating cooker 100 by the sixth gap G6. In the second upper case 43, as described above, the heat insulating material 45 is expanded in the horizontal direction above the upper surface heating device 23, so the temperature of the second upper case 43 itself is also suppressed low.
The lid 20 is configured by the above configuration.

In FIG. 3, reference numeral 72 denotes a partition plate installed horizontally so as to cover the entire lower part of the first lower case 75, and the whole is formed of a thin metal plate. The first lower case 75 is formed entirely by pressing a thin metal plate, and is made of, for example, glass wool as a heat insulating material 73 having a high heat insulation property formed of a material having a high electric insulation property. It accommodates. The heat insulating material 73 is installed in a state of being slightly compressed in the vertical direction so as to fill the gap 76 between the first lower case 75 and the bottom surface heating device 12 without gaps except for the peripheral portions. There is.

FIG. 4 is a schematic cross-sectional view of a heating cooker 100 according to Embodiment 1 of the present invention.
As shown in FIG. 4, the boundary line PL at which the lid 20 opens with respect to the heating cooker body 10 is slightly below the center of the maximum height dimension Hmax of the heating cooker.
The bottom plate 11 is formed by pressing a single thin metal plate into a thin plate shape, and includes a large flat portion 11C (see FIG. 6) except for the outer peripheral portion. The upper surface of the flat portion 11C is the "first heating surface". In addition, 11B is the inclination part (inclined surface) 11B which exists around the said 1st heating surface 11C (front and rear, right and left). Although FIG. 4 is a schematic view, the hatching form of the cross section of the flat portion 11C and the inclined portion 11B is not the same, but in fact, they are formed in series by the same metal plate. The angle of the inclined surface 11B is around 45 degrees of elevation so as to be higher toward the outer peripheral side of the bottom plate 11, but may be 30 degrees or may be a steep inclination such as 75 degrees. However, as in the first embodiment, the angles of the inclined surfaces 11B in the front and rear and right and left of the flat portion (first heating surface) 11C are all unified and 45 degrees.

In FIG. 4, HA is a linear distance to the side of the second heating surface 21 with reference to the boundary line PL between the lid 20 and the heating cooker main body 10, and this distance HA is There are three times or more than the distance HB to the one heating surface 11C.
In FIG. 4, DP is a linear distance to the first heating surface 11 C with reference to the boundary line PL which is divided up and down. That is, the “depth” from the upper surface of the bottom plate 11 to the first heating surface 11C is shown, and is set in the range of 2 mm to 10 mm. If this "depth" is large, there is an advantage that after the object 30 such as bread is accommodated, careless movement in the lateral direction can be prevented, but conversely, when taking out the toast etc after cooking, Since the thickness of a six-piece bread is about 20 mm, it is difficult for the user to grasp the toast, and there is also a concern that the take-out operation may be impaired.

In FIG. 4, reference numeral 21 denotes the heating chamber top plate (second heating surface), which is formed by pressing one thin metal plate into a thin plate shape as described above. Although the hatching pattern of the cross section of the second heating surface 21 and the heating chamber side wall 22 is not the same because it is a schematic view in FIG. 4, in fact, the heating chamber side wall 22 is formed in series by the same metal plate.

In FIG. 4, AL indicates the length in the front-rear direction of the planar heater constituting the bottom heating device 12. Actually, it corresponds to the maximum length in the front-rear direction of the mica plate described above, and since there is an electrotropic area up to the front-rear direction end of this mica plate, a range corresponding to the “heating area” heated by the heating wire Is shown.

As shown in FIG. 4, the planar heaters constituting the bottom heating device 12 face each other to a range slightly longer than the length in the front-rear direction of the first heating surface 11C. It is heated from the front end to the rear end of the first heating surface 11C. In addition, also in the left-right direction of the first heating surface 11C, since the horizontal width dimension of the planar heater of the bottom heating device 12 is a little large, eventually, the bottom surface also in any of the front-rear direction and the left-right direction of the first heating surface 11C. The surface heater of the heating device 12 covers the lower side.

In FIG. 4, BL indicates the length in the front-rear direction of the planar heater constituting the top heating device 23. Actually, it corresponds to the maximum length in the front-rear direction of the mica plate described above, and since there is an electrotropic area up to the front-rear direction end of this mica plate, a range corresponding to the “heating area” heated by the heating wire Is shown.

As shown in FIG. 4, the planar heaters constituting the top heating device 23 face each other to a range slightly longer than the length of the second heating surface 21 in the front-rear direction. It is heated from the front end to the rear end of the second heating surface 21. In addition, also in the left-right direction of the second heating surface 21, since the width dimension of the planar heater of the top heating device 23 is a little large, eventually, the top surface also in the front-back direction and the left-right direction of the second heating surface 21. The surface heater of the heating device 23 covers the upper side.

In FIG. 1 to FIG. 3, the operation unit 15 is provided on the front surface of the heating cooker main body 10, and the setting of the cooking conditions is performed by the operation of the user. In addition, the operation unit 15 includes a mode setting operation unit 15A, a burn color setting operation unit 15B, and a size setting operation unit 15C, each of which includes a dial, a button, and the like (hereinafter collectively referred to as "operation dial"). And (size setting means). An operation unit cover 77 is provided so as to cover the rear of the operation substrate 16 of the operation unit 15 and the upper and lower sides and the left and right, and is made of plastic.

A signal specifying one of “normal temperature pan”, “French toast”, “span pan for ingredients”, and “frozen pan” by turning the operation dial of mode setting operation unit 15A (hereinafter “mode setting signal”) Is input to the control device 50 described later.

Here, the “normal temperature pan” is a bread pan in a state of being stored at normal temperature.
French toast is a dish which is heated and finished after immersing a single liquid or a mixture of multiple foodstuffs such as melted egg, milk and the like inside a bread. It is not necessary to infiltrate the liquid to the center of the pan, but it may be a part. Further, the amount of liquid to be infiltrated is not limited, but the amount of water before heating is larger than that of the pan alone before heating.

"Glass bread" is a bread on which bread or other ingredients such as cheese are placed. The ingredients may be seasonings such as mayonnaise, vegetables, meat, fish, fruits and the like, or may be a combination of two or more thereof.

A "frozen bread" is frozen bread stored in a freezer. In addition, the storage method in a freezer, storage period, etc. do not matter.

In addition, the burning color setting operation unit 15B is for setting the “burning color” of the heating target 30 to be cooked by the user. By turning the operation dial of the color setting operation section 15B, the user can arbitrarily select any one of three types of "dark", "normal" and "light". When it is selected, a signal (hereinafter referred to as a “burn color setting signal”) for specifying “burn color” is input to the control device 50 described later.

The user can select the size of the food pan by turning the operation dial of the size setting operation unit 15C. The "size" mentioned here includes "mountain shaped bread", "square shaped bread" and the like, and the size of the object 30 to be cooked is selected according to the outer shape of these breads. By turning the operation dial of the size setting operation unit 15C, a signal (hereinafter referred to as "size setting signal") for specifying the result of selecting the size of the food pan is input to the control device 50 described later. In addition, when calling it a normal size, it means the size of the bread, but in this Embodiment 1, the selection of the type of bread (mountain, square,...) Inevitably leads to the bread The term "size" is used on the premise that the size is determined.

The cooking start operation unit 15D shown in FIG. 1 is for starting the cooking by the heating cooker 100. A signal that specifies cooking start (hereinafter referred to as "cooking start setting signal"), which is configured by a push button type or touch input type switch etc. and the user intends to start cooking and performs a specific operation, will be described later. Is input to the control device 50.

The operation board 16 is provided on the front side inside the heating cooker main body 10, and a circuit for processing a signal input from the operation unit 15 is mounted. After processing each of the color setting signal, the size setting signal, and the cooking start setting signal, the signal is output to the control device 50.

The control device 50 is provided inside the heating cooker body 10, and an input from the operation unit 15, that is, "mode setting based on the" heating mode "," burning color ", and" size "set by the user. The control signal is output to the power supply substrate 14 by receiving the signal, the “color setting signal”, and the “size setting signal”. The control device 50 can be configured by hardware such as a circuit device that realizes the function, or can be configured by an arithmetic device such as a microcomputer and software that defines the operation.

In FIG. 3, an arrow UT indicates a direction in which the outer peripheral edge portion of the partition plate 72 and the first lower case 75 is fixed to the ring-shaped plastic support frame 74 from below by fasteners such as fixing screws. . In other words, the outer peripheral edge portions of the partition plate 72 and the first lower case 75 are fixed to the plastic support frame 74. Reference numeral 75A denotes a slope formed on the outer peripheral edge of the first lower case 75 in series.

FIG. 5: is the longitudinal cross-sectional enlarged view of another example to which the principal part of the heating cooker 100 which concerns on Embodiment 1 of this invention was expanded. In addition, this principal part has shown the contact part of the heating cooker main body 10 and the cover 20 in the state with which the cover 20 was closed.

As a "labyrinth structure" which is one means for securing the air tightness on the polymerization surface (the first polymerization surface P1, the second polymerization surface P2) of the lid 20 and the heating cooker main body 10, The configuration shown in 5 may be used.

In FIG. 5, reference numeral 28 denotes a support frame similar to the support frame 46 in the shape of a ring (hollow cylinder) in plan view shown in FIG. 3 and is entirely formed of heat-resistant plastic or metal.
Reference numeral 28a denotes a projection formed integrally with the lower surface of the support frame 28, that is, the second polymerization surface P2 so as to protrude downward. The projection is formed over the entire length of the ring (hollow cylinder) -shaped support frame 28, and thus is formed in a ring shape in plan view.

Reference numeral 17 denotes a support frame formed entirely of heat-resistant plastic or metal, similar to the ring-shaped plastic support frame 74 shown in FIG.
A groove 17a is formed on the upper surface of the plastic support frame 74, that is, the first polymerization surface P1, and the groove 17a is formed over the entire length of the ring (hollow cylinder) support frame 17 Therefore, they are formed annularly in plan view.

When the lid 20 is closed, the projection 28a of the support frame on the lid 20 side is fitted tightly with the groove 17a of the support frame 17 on the heating cooker body 10 side. Then, by fitting the projection 28 a and the groove 17 a, the heating chamber 40 having a high degree of sealing can be formed.

The position where the groove 17a is formed may be reversed to the position where the protrusion 28a is provided. That is, a projection (not shown) may be provided on the upper surface of the support frame 17 of the heating cooker body 10, and a groove (not shown) may be formed on the lower surface of the support frame 28 on the lid 20 side. Also by doing this, the heating chamber 40 with a high degree of sealing can be formed by the projection and the groove being fitted. Further, the grooves 17 a and the protrusions 28 a may be provided in a plurality of rows so as to surround the heating chamber 40. That is, the grooves 17a and the protrusions 28a may be formed concentrically in two, three, four or the like.

In FIG. 5, reference numeral 81 denotes a decorative frame, which has a ring (hollow cylinder) shape in plan view. The decorative frame 81 and the ring-shaped support frame 17 made of plastic are fixed so that the positions of the upper surfaces thereof are flush with each other.

In FIG. 5, reference numeral 84 denotes a space formed between the main body case 79 and the decorative frame 81. The front end 72H of the partition plate 72 enters the space 84 and is bent vertically upward.

11E is a front end of the bottom plate 11, and the horizontal end 11E is pushed from above by the support frame 17 and the decoration frame 81 in a state of overlapping with the partition plate 72. Therefore, since the decorative frame 81, the support frame 17, the end of the bottom plate 11, the end of the first lower case 75, and the end of the partition plate 72 are in close contact, the heat of the bottom heating device 12 Escape to the outside of the main body case 79 is suppressed. Reference numeral 75H is a vertical portion formed on the peripheral portion of the first lower case 75, and the outer peripheral end portion is further pressed by the support frame 17 from the upper side than the vertical portion. Reference numeral 77 denotes a peripheral wall material of the operation unit 15. The outer peripheral end of the first lower case 75 is sandwiched and fixed between the upper surface of the peripheral wall and the lower surface of the support frame 17.

The to-be-heated material 30 cooked with the heating cooker 100 which concerns on this Embodiment 1 is mainly a bread. There are two types of bread, a "square" finished with a lid and a square when baked, and a "mountain" finished without a lid when baked, and their general size is square Is about 12 cm in width × 12 cm in height, and the mountain shape is about 12 cm in width × 16 cm in height. In addition, the thickness of the bread is different depending on the number of rolls, and for example, the thickness of 4 pieces is about 30 mm / piece and the thickness of 6 pieces is about 20 mm / piece.

The vertical and horizontal sizes of the heating chamber 40 are preferably at least larger than the size of the mountain shaped bread and about 20 to 40 mm larger than the size of the mountain shaped bread. The vertical and horizontal sizes of the heating chamber 40 are, for example, 14 cm wide and 18 cm long. This is a dimension in which the mountain-shaped bread placed on the bottom plate 11 in the heating chamber 40 does not contact the heating chamber side wall 22.
The planar dimension of the first heating surface 11C of the bottom plate 11 is set larger than the planar dimension (lateral width 12 cm in the left-right direction, longitudinal length 16 cm) of the "pan" shaped bread.

Further, the height of the heating chamber 40 is larger than that of the at least four pieces of bread and it is desirable that the heating chamber 40 has a dimension such that the ingredients do not contact the heating chamber top plate 21 even if the ingredients are put on the four pieces of bread. The height of the heating chamber 40 is 45 mm, for example. This is because even if the lid 20 is closed in a state where ingredients such as cheese are placed on a commercially available thick 4 mm 30 mm bread placed on the bottom plate 11 up to a thickness of about 10 mm, The top ingredients and the heating chamber top plate 21 are not in contact with each other, and are separated by about several mm to about 15 mm.

Next, FIG. 6 will be described. The bottom plate 11 on which the object to be heated is placed has a rectangular planar shape. Since the to-be-heated material 30 which this heating cooker makes object contains also a mountain-shaped bread, it is united with the rectangle which is the general shape of the mountain-shaped bread.

In FIG. 6, W1 shows the vertical direction (front-back direction) dimension of the mountain-shaped bread, for example, about 16 cm. L1 shows the width (horizontal direction) dimension of the mountain-shaped bread, for example, about 12 cm.
W4 indicates the dimension in the front-rear direction (longitudinal direction) of the bottom plate 11, and L4 indicates the maximum width dimension of the bottom plate 11.

W2 indicates the vertical dimension of the flat portion 11C on which the bread or the like is placed in the bottom plate 11, and L2 indicates the maximum width dimension thereof.
W3 indicates the vertical dimension of the inclined portion 11B formed around the front, rear, left, and right of the flat portion 11C in the bottom plate 11, and L3 indicates the maximum lateral width thereof. The inclined portion 11B is formed, for example, at an elevation angle of 45 degrees toward the outer peripheral side. The inclined portion 11B is formed in the same planar size on the front, rear, and left and right sides of the flat portion (first heating surface) 11C. In other words, they are formed symmetrically in the front and rear and in the left and right with reference to the left and right center line HL passing through the center portion O of the flat portion 11C and the front and rear center line VL.

W4 indicates the length in the front-rear direction which is the maximum outside dimension in the bottom plate 11, and L4 indicates the maximum lateral width dimension.

As is apparent from the above description, the flat portion (first heating surface) 11C is entirely formed of a metal plate, is non-air-permeable, and is horizontally installed.

The planar size (the first heating surface) 11C of the flat portion (first heating surface) is, as shown in FIG. Larger than the size. That is, the planar size of the first heating surface 11C is formed larger than the outer dimensions of the bread serving as the main heating target.

Incidentally, the longitudinal dimension W2 of the flat portion (first heating surface) 11C is 177 mm, and L2 is 127 mm. Further, the rated power consumption of the bottom heating device 12 is 300 W, and the power consumption per square centimeter ("per square centimeter") obtained as a result of dividing the substantial area contributing to heating the object to be heated 30 The watt density ") is 1.3W.

In FIGS. 3 and 5, reference numeral 75 denotes a first lower case made of sheet metal. Although not shown in FIG. 4, a heat insulating material (not shown) 45 formed of the same material as the heat insulating material 45 is disposed between the first lower case 75 made of sheet metal and the partition plate 72. It is done.

Next, FIG. 7 will be described. FIG. 7 is a functional block diagram of the heating cooker according to the first embodiment.
As shown in FIG. 7, the power range switching device 60 capable of selecting the heating range according to the size of the bread pan is determined on the power supply substrate 14 by determining the range for energizing the upper surface heating device 23 and the bottom surface heating device 12. ing.

When the user operates the size setting operation unit 15C in the operation unit 15 and the "size setting signal" is input to the control device 50, the control device 50 selects the "energization range" corresponding to the "size setting signal". The designation signal is output to the energization range switching device of the power supply substrate 14.

The control device 50 according to the first embodiment includes a main control unit 51, an operation unit 52, a timer unit 53, and a storage unit 54. The main control unit 51 receives information (“mode setting signal”, “burn color setting signal”, “size setting signal”) input from the operation unit 15 via the temperature detection device 13, the lid open / close detection device 97, and the operation board 16. The bottom heating device 12 and the top heating device 23 are controlled based on

The calculation unit 52 calculates a heating end time described later and various control parameters. The storage unit 54 is, for example, a ROM, and stores a plurality of weight reduction rates corresponding to a plurality of "burn colors". For the "size setting signal", switching patterns of energization ranges corresponding to the shape and size (vertical and horizontal dimensions) of the bread pan are stored in the form of a correspondence table (table) or the like.

The power supply substrate 14 turns on (turns on) or turns off (turns off) energization to the bottom surface heating device 12 and the top surface heating device 23 based on a control signal output from the control device 50. The temperature of the bottom plate 11 heated by the bottom heating device 12 is detected by the temperature detection device 13, and the detected temperature information is input to the control device 50. Further, the opening and closing of the lid 20 is detected by the lid opening and closing detection device 97, and the detected opening and closing information is input to the control device 50.

FIG. 8 is a schematic view of the bottom plate 11 on which the square-shaped bread pan 30a according to the first embodiment of the present invention is placed. FIG. 9 is a schematic view of the bottom plate 11 on which the mountain-shaped bread 30b according to the first embodiment of the present invention is placed. FIG. 10 is a schematic view showing a circuit configuration of the energization range switching device 60 according to Embodiment 1 of the present invention.

As shown in FIGS. 8 to 10, the bottom heating device 12 uses a planar heater in which an electrotropical 41A is overlapped on the whole of a mica plate as an electrical insulating material, and the electrotropical 41A has a bottom plate 11. Are arranged in a strip along one direction. The wiring pattern is devised so that the electric tropical area 41A heats the whole of especially the 1st heating side 11C of bottom plate 11 equally.

Similarly, in the upper surface heating device 23, a planar heater in which the electrotropical 41B is superimposed on the mica plate is used, and the electrotropical 41 is formed in a strip along one direction on the surface of the heating chamber top 21. It is arranged. In addition, although FIG. 8 and FIG. 9 illustrate the electrical tropical area 41A of the bottom surface heating device 12, the electrical tropical surface 41B of the upper surface heating device 23 has a similar configuration. The electrical tropical area 41 B of the top heating device 23 is provided at a position facing the electrical tropical area 41 A of the bottom surface heating device 12. That is, the electrical tropical area 41A which heats a bread pan from the downward direction, and the electrical tropical area 41B which heats from the upper direction have the same projection area seen in the up-down direction. For example, if the range provided with the electrotropical 41B of the top heating device 23 is 16 cm in the longitudinal direction (front-back direction) and 12 cm in the lateral (width) direction, the electrotropical 41A of the bottom heating device 12 is also 16 cm similarly It has a size of 12 cm and the two

electrotropic zones

41A and 41B are in the overlapping state when viewed in the vertical direction.

When the electrotropical areas 41A arranged on the surface of the bottom plate 11 are arranged at uniform intervals, the heat is concentrated at the central portion of the bottom plate 11, so the central portion and the outer portion of the bottom plate 11 Temperature difference is likely to occur between When a temperature difference occurs between the central portion and the outer portion of the bottom plate 11, when heating the object to be heated 30, only the central portion becomes darkened, and uneven burning occurs. Therefore, the temperature difference between the central portion and the side portion hardly occurs by widening the arrangement interval of the electrotropical area 41A at the central portion of the bottom plate 11 and narrowing at the outer portion, and when heating the object 30 to be heated. It is possible to reduce the uneven burning of

The energization range switching device 60 has a first switching unit 61 and a second switching unit 62. The first switching unit 61 and the second switching unit 62 are provided in the bottom heating device 12 and the top heating device 23, respectively.

The bottom heating device 12 is composed of a first heating unit 12a and a second heating unit 12b. When the first switching unit 61 is turned on, only the first heating unit 12a is energized, and the second switching unit 62 is turned on. Then, the first heating unit 12a and the second heating unit 12b are energized.

Further, the upper surface heating device 23 is configured by a first heating unit (not shown) and a second heating unit (not shown), and when the first switching unit 61 is turned ON, only the first heating unit is energized, and the second heating unit When the switching unit 62 is turned on, the first heating unit 12a and the second heating unit are energized.

The control device 50 turns the first switching unit 61 and the second switching unit 62 of the two energization range switching devices 60 ON or OFF according to the “size” of the object 30 set by the size setting operation unit 15C. Switch. By doing so, the energization range to bottom heating device 12 and top heating device 23 is switched, and the heating range in heating chamber 40 is changed.

Although the heating cooker 100 according to the first embodiment includes one bottom heating device 12 and the bottom heating device 12 is configured by one sheet heater (electrotropical 41), It is not limited. For example, FIG. 11 is a schematic view of another example of the bottom plate 11 on which the square-shaped bread loaf 30a according to the first embodiment of the present invention is placed.

As shown in FIG. 11, the heating cooker 100 includes a plurality of bottom heating devices 12, and the energization range switching device 60 switches the presence or absence of energization to the

electrical tropicals

41 A and 41 B of each bottom heating device 12. It is also good. In the same manner, the heating cooker 100 also includes the upper heating device 23 configured of a plurality of sheet heaters, and the energization range switching device 60 transfers the sheet heaters of the upper heating device 23 to the sheet heater. It may be configured to switch the presence or absence of energization.

In the heating cooker 100 according to the first embodiment, one bottom heating device 12 may be provided, and the bottom heating device 12 may be configured by a plurality of planar heaters (electrotropical 41), but is limited thereto You don't have to. As shown in FIG. 9, the heating cooker 100 includes the bottom heating device 12 including a plurality of

planar heaters

41A and 41B, and the conduction range switching device 60 transfers the respective

planar heaters

41A and 41B of the bottom heating device 12. The configuration may be configured to switch the presence or absence of energization. Similarly, the top heating device 23 may be configured of a plurality of planar heaters, and the energization range switching device 60 may switch the presence or absence of energization to each planar heater.

Next, cooking of the to-be-heated material 30 by the heating cooker 100 which concerns on this Embodiment 1 is demonstrated.
The user places the heating target 30 on the bottom plate 11 and then closes the lid 20. Next, the user sets the "heating mode" according to the type of the object 30 to be cooked by the mode setting operation unit 15A, and the object 30 to be heated according to the user's preference by the color setting operation unit 15B. Set the "gray color" of Furthermore, the user sets “size” in accordance with the size of the object 30 to be cooked by the size setting operation unit 15C. Thereafter, the user presses the cooking start operation unit 15D provided in the operation unit 15.

When the cooking start operation unit 15D is pressed and the control device 50 receives a "cooking start command signal" from the operation substrate 16, the control device 50 starts energizing the bottom heating device 12 and the top heating device 23, Control them based on the "heating mode", "burning color" and "size" set by the user.

When the “size” selected by the size setting operation unit 15C is the “square-shaped bread pan” specified by the size setting operation unit 15C, the control device 50 turns on both of the two first switching units 61, and the two second switching units 62. Are turned off, and energization of the bottom heating device 12 and the top heating device 23 is started. By doing so, the heating range becomes a size corresponding to the square-shaped bread 30a.

In addition, when the “size” selected by the size setting operation unit 15C is “mountain type bread”, the control device 50 turns both of the two first switching units 61 off, and turns on both of the two second switching units 62. Then, energization to the bottom heating device 12 and the top heating device 23 is started, respectively. By doing so, the heating range becomes a size corresponding to the mountain-shaped bread 30b.

As described above, by selecting the “square-shaped bread” or the “mountain-shaped bread” in the size setting operation unit 15C, a heating range that matches the size of the “square-shaped bread” is determined. That is, by switching the conduction range to the bottom heating device 12 and the top heating device 23 in accordance with the size of the object 30 to be heated such as "cornered bread" or "cornered bread", unnecessary power consumption during cooking can be achieved. Since it can be suppressed, energy saving can be achieved.

After energization of the bottom heating device 12 and the top heating device 23 is started, the control device 50 controls them based on the “heating mode” and the “burning color” set by the user. Then, an operation of heating the object to be heated 30 from below by heat conduction from the bottom plate 11 heated by the bottom surface heating device 12 and radiation heat from the heating chamber top plate 21 heated by the heating chamber top plate 21. The operation of heating the object 30 from above is centrally controlled.

As the bottom surface of the object to be heated 30 is heated, the moisture evaporates to reduce the water content, and when the water content becomes lower than a certain value, a crust layer which is a hardened part is formed on the bottom surface of the object to be heated 30 . At this time, since the bottom surface of the object to be heated 30 is in close contact with the first heating surface 11C of the bottom plate 11, the evaporated water is hardly discharged from the bottom surface of the object to be heated 30 to the outside. Move inside That is, moisture does not permeate the bottom plate 11 and diffuse to the outside of the heating chamber 40.

On the other hand, when the heating of the upper surface of the object to be heated 30 proceeds, the moisture evaporates to reduce the water content, and when the water content becomes less than a certain value, a crust layer which is a hardened part is formed on the upper surface of the object to be heated Be done. At this time, the evaporated water is discharged from the upper surface of the object to be heated 30 to the outside and moves to the inside of the object to be heated 30. Also in this case, the moisture does not permeate actively through the second heating surface 21 or the heating chamber side wall 22 to the outside of the heating chamber 40 or is not forcibly diffused.

The moisture discharged to the outside from the upper surface of the article to be heated 30 is confined in the heating chamber 40 having a high degree of sealing. Then, the object to be heated 30 is heated in the heating chamber 40 which is a closed space of high humidity filled with water, and even if the heating proceeds, the water is hardly discharged from the object to be heated 30 to the outside. Water discharged from the object 30 to the outside can be suppressed. Therefore, in this heating cooker 100, when the to-be-heated material 30 is a bread, it can bake in the state in which water | moisture content was kept inside the bread.

In addition, the heating cooker 100 heats the heating target 30 placed on the bottom plate 11 from the lower side by heat conduction from the bottom plate 11, and the heating chamber top plate 21 heated by the heating chamber top plate 21. Heat from above by radiant heat from the Therefore, when the to-be-heated material 30 is bread, it can bake to the state with few baking nonuniformity.

As mentioned above, the control apparatus 50 of the heating cooker 100 which concerns on this Embodiment 1 controls the electricity supply with respect to the bottom face heating apparatus 12 and the upper surface heating apparatus 23 after a cooking start. And while controlling the operation | movement which heats the to-be-heated object 30 from the downward direction by the heat conduction from the bottom plate 11, and controlling the operation | movement which heats the to-be-heated object 30 from the upper direction by the radiant heat from the heating chamber top plate 21. . And according to the size of the to-be-heated material 30 which the user designated, the electricity supply range to the bottom face heating apparatus 12 and the upper surface heating apparatus 23 is changed.

The heating cooker 100 according to the first embodiment includes the seal member 24 provided along the lower end of the heating chamber side wall 22, and the seal member 24 is the periphery of the bottom plate 11 in the closed state of the lid 20. It is in close contact with the portion 11a.

Alternatively, the heating cooker 100 according to the first embodiment includes the groove 17 a formed in the support frame 17 disposed on the peripheral edge of the upper surface of the heating cooker main body 10 and the support frame disposed on the lower surface side of the lid 20. And a projection 28a provided along the line 28. Then, in the state where the lid 20 is closed, the projection 28a is fitted to the groove 17a, thereby realizing a labyrinth structure for improving the airtightness of the heating chamber 40.

Alternatively, in the heating cooker 100 according to the first embodiment, a protrusion is provided on the peripheral edge of the upper surface of the heating cooker main body 10, and a groove is provided on the support frame 28 of the lid 20. And in the state where lid 20 was closed, these projection parts fit into a slot. Thereby, the labyrinth structure for improving the airtightness of the heating chamber 40 is realized.

Summary of Embodiment 1
The heating cooker 100 which concerns on this Embodiment 1 was the following structures. That is,
A bottom plate 11 on which an object to be heated is placed;
A bottom heating device 12 for heating the bottom plate 11;
A heating chamber top plate 21 which covers the space above the bottom plate 11 so as to be freely opened and closed;
An upper surface heating device 23 for heating the heating chamber top plate 21;
A controller 50 for controlling the bottom heating device 12 and the top heating device 23;
When the heating chamber top plate 21 covers the space above the bottom plate 11, a heating chamber 40 shielded from the outside is formed between them,
The bottom plate 11 heats the object to be heated contained in the heating chamber 40 from the lower side by heat conduction, and the heating chamber top plate 21 radiates radiant heat to the object to be heated.

According to the configuration of the first embodiment, when the object to be heated is bread, the moisture inside the bread can be maintained, and the baking unevenness can be reduced and baked.

Moreover, the heating cooker 100 which concerns on this Embodiment 1 was the following structures. That is,
A heating cooker main body 10 incorporating a first heating surface 11C which is flat and wider than the planar range of the heating object for placing the heating object;
A lid 20 supported by the heating cooker body 10 so as to be openable and closable and provided with a second heating surface 21 and forming a heating chamber 40 with the first heating surface 11C in a closed state;
A control device 50 for controlling heating by the first heating surface 11C and the second heating surface 21;
The second heating surface 21 faces the first heating surface, and is a flat surface wider than the planar range of the object to be heated, and the second heating surface 21 is closed when the lid is closed. The heating surface is in a state in which a narrow space is placed close to the object to be heated, and the heating chamber is heated by the overlapping portion of the peripheral portion of the lid and the heating cooker main body. It is the structure used as the space of the sealed state heated by the surface.

Furthermore, the heating cooker 100 which concerns on this Embodiment 1 was the following structures. That is,
A bottom plate 11 on which a baking pan as the heating target 30 is placed;
A bottom heating device 12 for heating the bottom plate 11;
A heating chamber top plate 21 which covers the space above the bottom plate 11 so as to be freely opened and closed;
An upper surface heating device 23 for heating the heating chamber top plate 21;
A controller 50 for controlling the bottom heating device 12 and the top heating device 23;
And size selecting means 15C for selecting the size of the object to be heated 30;
In a state in which the heating chamber top plate 21 covers the space above the bottom plate 11, a heating chamber 40 is formed between them,
The control device 50 receives the signal indicating the size of the object to be heated 30 specified by the size selection means 15C, and determines the current supply range to the bottom surface heating device 12 and the top surface heating device 23. is there.

According to the heating cooker of the first embodiment, the range to be heated is automatically determined according to the size of the object to be heated selected by the user, and unnecessary power consumption during cooking can be suppressed. Can be

According to the heating cooker 100 in the first embodiment, the seal member 24 is in close contact with the peripheral portion 11a of the bottom plate 11 in the closed state of the lid 20 to form the heating chamber 40 having a high degree of sealing. be able to. Alternatively, in a state where the lid 20 is closed, the protrusion can be fitted to the groove to form the heating chamber 40 having a high degree of sealing. Therefore, the water discharged from the toast during cooking can be confined in the heating chamber 40 with a high degree of sealing. And, since it is possible to heat the toast in the heating chamber 40 which is a sealed space of high humidity filled with water, it becomes difficult for the toast to be discharged to the outside even if the heating proceeds, and the water to be discharged to the outside from the toast Can be reduced.

In addition, although it was set as the structure which can set the heating range corresponding to the size of the square-shaped bread 30a and the mountain-shaped bread 30b, the heating cooker 100 which concerns on this Embodiment 1 is not limited to that. A heating range corresponding to the size of 30 may also be settable. That is, according to the planar size of the to-be-heated material 30 which should be heated, it enables it to select an electricity supply range.

Furthermore, the heating cooker 100 which concerns on this Embodiment 1 was the structure provided with 2nd invention as follows. That is,
A heating cooker body 10 having a first heating surface 11C which is flat and wider than the planar range of the heating object 30 for mounting the heating object 30;
A lid 20 supported by the heating cooker body 10 so as to be openable and closable and provided with a second heating surface 21 and forming a heating chamber 40 with the first heating surface 11C in a closed state;
A control device 50 for controlling heating by the first heating surface 11C and the second heating surface 21;
The second heating surface 21 faces the first heating surface 11C and is a flat surface that is wider than the planar range of the object 30 to be heated.
In the state where the lid 20 is closed, the second heating surface 21 is in a state where the object 30 to be heated is in close proximity to the object 30 with a narrow space (air gap H1), and the peripheral portion of the lid 20 The heating cooker 100 has a configuration in which the heating chamber 40 is a space in a sealed state heated by the first and

second heating surfaces

11C and 21 due to the overlapping portion with the heating cooker main body 10.

According to this configuration, it is possible to form the heating chamber 40 in which the object to be heated 30 is accommodated in the state where the lid 20 is closed. When the lid 20 is closed, the water discharged from the toast during cooking can be trapped in the closed heating chamber 40. The toast can be heated over a wide range from the vertical direction by the first heating surface 11C and the second heating surface 21 in the heating chamber 40 which is a high humidity sealed space filled with water. Therefore, even if heating progresses, it is difficult for the water to be discharged from the toast to the outside, and the water discharged from the toast to the outside can be suppressed.

Furthermore, the heating cooker 100 which concerns on this Embodiment 1 is equipped with the characteristic structure as follows.
(1) Feature 1:
The heating cooker main body 10 in which the first heating surface 11C on which the object to be heated 30 is placed is exposed at the upper surface
And a lid 20 disposed so as to freely open and close the upper surface of the heating cooker main body 10 and having the second heating surface 21 exposed on the lower surface.
When the top surface of the heating cooker body 10 is closed by the lid 20, the first heating surface 11C and the second heating surface 21 face each other from above and below, and between the two, the object 30 to be heated A heating chamber 40 capable of containing the air and blocking the flow of air from the outside (by the seal member 24, the labyrinth structure, the first polymerization surface P1, the second polymerization surface P2, etc.);
The second heating surface 21 constitutes a ceiling surface of the heating chamber 40 and radiates radiant heat toward the first heating surface 11C side,
In the first heating surface 11C, an inclined surface 11B that regulates the horizontal mounting position of the object to be heated 30 is continuous outside the outermost peripheral edge, and the bottom surface of the heating chamber 40 is formed. It is a heating cooker characterized by being.
With this configuration, the placement position of the object to be heated 30 such as bread can be clarified by the inclined surface 11B, and the convenience of the user is improved.
(2) Feature 2:
The inclined surface 11B is formed in the same inclination angle (for example, elevation angle 45 degrees) in the front-rear direction and the left-right direction from the center of the first heating surface 11C in the front-rear and left-right directions. Configuration of cooking cooker.
(3) Feature 3:
The configuration according to the feature 1, wherein the first heating surface 11C and the inclined surface 11B are configured by a single metal plate, and the first heating surface 11C is a single flat surface as a whole. Cooker.
(4) Feature 4:
In the state where the lid 20 is closed, the second heating surface 21 approaches the upper surface of the object to be heated 30, and the peripheral portion of the lid 20 and the upper portion of the heating cooker main body 10 Any one of the features 1 to 4, wherein the heating chamber becomes a sealed space by at least one of the seal member 24 and the labyrinth structure disposed on the first and second polymerization surfaces P1 and P2 of the second The heating cooker of the composition of 1 statement.
(5) Feature 5:
The lid 20 has a lid case 20A that constitutes its outer shell,
A feature of the lid 20 is that a first heat shield (support frame 46) is provided to form a gap G5 between the second heating surface 21 and the inner wall surface of the lid case 20A. The heating cooker according to any one of features 1 to 4, according to any one of features 1 to 4.
(6) Feature 6:
The lid 20 has a lid case 20A that constitutes its outer shell,
Inside the lid 20, a first heat shield (supporting frame 46) is provided which forms a gap G5 between the second heating surface 21 and the inner wall surface of the lid case 20A.
Another air gap G3 is formed between the first heat shield (the support frame 46) and the inner wall surface of the lid case 20A according to any one of the features 1 to 4. Configuration of cooker.
(7) Feature 7:
The lid 20 has a lid case 20A that constitutes its outer shell,
Inside the lid 20, a second heat shield (first upper case 42) is provided which forms a gap G6 between the second heating surface 21 and the inner wall surface of the lid case 20A. And, a first heat shield (supporting frame 46) forming a gap G5 between the front and rear side walls (heating chamber side wall 22) which becomes the outer shell of the heating chamber 40 and the inner wall surface of the lid case 20A. )),
The heating cooker according to any one of the features 1 to 4, wherein the air gap G6 and the air gap G5 communicate with each other outside the heating chamber 40 inside the lid 20.
(8) Feature 8:
The lid 20 has a lid case 20A that constitutes its outer shell,
Inside the lid 20, a second heat shield (first upper case 42) is provided which forms a gap G6 between the second heating surface 21 and the inner wall surface of the lid case 20A. And, the first heat shield (supporting the air gaps G3 and G5 between the front and rear side wall surfaces (heating chamber side wall 22) which become the outer shell of the heating chamber 40 and the inner wall surface of the lid case 20A Frame 46), and
The first heat shield (support frame 46) forms a polymerization surface (first polymerization surface P1) facing the heating cooker main body 10 in a state in which the lid 20 is closed. The heating cooker of the configuration according to any one of Features 4.
(9) Feature 9:
The lid 20 has a lid case 20A that constitutes its outer shell,
In the inside of the lid 20, gaps G3 and G5 are formed between the front and rear side wall surfaces (heating chamber side wall 22) which become the outer shell of the heating chamber 40 and the inner wall surface of the lid case 20A. Provide a first heat shield (support frame 46),
The first heat shield (support frame 46) forms a polymerization surface (first polymerization surface P1) facing the heating cooker main body 10 in a state where the lid 20 is closed, and the heating The heating cooker according to any one of the features 1 to 4, which holds a seal member 24 whose tip is in contact with the side of the cooker body 10.
(10) Feature 10:
The lid 20 has a lid case 20A that constitutes its outer shell,
Inside the lid 20, a first heat shield (supporting frame 46) is provided which forms gaps G3 and G5 between the second heating surface 21 and the inner wall surface of the lid case 20A. And, the outer peripheral edge portion of the heating chamber 40 is supported by the first heat shield (supporting frame 46) so as to be horizontally away from the overlapping portion on the heating cooker main body 10 side,
In the state where the lid 20 is closed, the lower surface of the first heat shield (supporting frame 46) forms a polymerization surface (first polymerization surface P1) facing the heating cooker main body 10, The heating cooker according to any one of features 1 to 4, according to any one of features 1 to 4.
(11) Feature 11:
The second heat shield (first upper case 42) is a space surrounded by a metal plate, and a heat insulating material such as heat insulating glass wool or rock wool inserted into the space. The heating cooker according to any one of Features 1 to 4, which is a configuration provided.
(12) Feature 12:
The distance HA to the second heating surface 21 side is greater than the distance HB to the first heating surface 11C based on the boundary line PL where the lid 20 and the heating cooker main body 10 separate from each other. The heating cooker according to any one of Features 1 to 4, characterized in that it is three times or more.
(13) Feature 13:
With reference to the boundary line PL where the lid 20 and the heating cooker body 10 are separated, the distance HB to the first heating surface 11C is in the range of 2 mm to 10 mm. The heating cooker of the composition of a statement.
(14) Feature 14:
The distance HA to the second heating surface 21 side is a distance HB to the first heating surface 11C based on the boundary line PL at which the lid 20 and the heating cooker body 10 are separated. More than three times more than
The volume VL1 of the heating chamber 40 is in the range of 1.5 times to 3 times or less the maximum volume VL2 obtained from the external dimensions of the bread serving as the object to be heated, according to any one of features 1 to 4. Configuration of cooking cooker.

Incidentally, in the first embodiment, the maximum volume VL2 obtained from the outside dimension of the bread pan is 16 centimeters (cm) × 16 cm × 3 cm = 768 cubic centimeters. The volume VL1 of the heating chamber 40 is 1.5 to 3 times the volume VL1 or less. That is, 1152 to 2304 cubic centimeters. Assuming that the heating chamber 40 has a perfect cubic shape and neglects the presence of the inclined portion 11B, assuming that the inner dimensions of the heating chamber 40 in the front and rear and left and right directions are respectively 20 cm, the effective height dimension H2 is 3 cm (2 cm) .88 cm) to less than 6 cm (5.76 cm). As described above, in the first embodiment, the height H1 is about 25 mm, and the height H2 is about 45 mm.

Second Embodiment
The second embodiment of the present invention will be described below, but the description of the same parts as those in the first embodiment will be omitted, and the same or corresponding parts as in the first embodiment will be assigned the same reference numerals.

FIG. 12 is a longitudinal cross-sectional view showing the main parts of the lid 20 of the heating cooker 100 according to Embodiment 2 of the present invention.
As shown in FIG. 12, the heating chamber top plate 21 is provided with a thickness detection device 70 for detecting the thickness of the object to be heated 30. The thickness detection device 70 is, for example, an ultrasonic sensor, and detects the thickness of the heating object 30 by detecting the distance from the thickness detection device 70 to the heating object 30 placed on the bottom plate 11. Do. Then, the control device 50 determines the thickness of the object to be heated 30 based on the information input from the thickness detection device 70.

The distance between the upper surface of the object to be heated 30 and the upper surface heating device 23 changes depending on the thickness of the object to be heated 30. Therefore, when the heating target 30 of different thickness is heated by the same control of the upper surface heating device 23, the thicker the upper the color of the upper surface of the heating target 30 becomes darker, the smaller the lighter the upper surface of the heating target 30 Tends to become thinner.

Therefore, in the heating cooker 100 according to the second embodiment, the thickness of the object 30 to be heated is automatically determined, so that the power applied to the upper surface heating device 23 is automatically determined according to the thickness of the object 30 to be heated. It is possible to make the upper surface of the object to be heated 30 the same color regardless of the thickness. In addition, although it was set as the structure which changes the electricity supply electric power to the upper surface heating apparatus 23 automatically according to the thickness of the to-be-heated material 30 in the heating cooker 100 which concerns on this Embodiment 2, it is not limited to it. Even when the energization time to the upper surface heating device 23 or both of the energization power and the energization time are automatically changed according to the thickness of the heating object 30, the upper surface of the heating object 30 regardless of the thickness You can make the color the same.

Further, as shown in FIG. 12, the heating chamber side wall 22 is provided with a size detection device 71 (size detection means) for detecting the size of the object 30 to be heated. The size detection devices 71 are, for example, infrared sensors, and a plurality of size detection devices 71 are provided along the horizontal direction of the heating chamber side wall 22. In the second embodiment, three units of a first size detection device 71a, a second size detection device 71b, and a third size detection device 71c are provided. The first size detection device 71a and the second size detection device 71b are provided at positions of both ends of the electric heating area 41 (41A, 41B) constituting the first heating unit 12a of the bottom surface heating device 12 or the top surface heating device 23. . The second size detection device 71b and the third size detection device 71c are provided at the positions of both ends of the electric heating area 41 (41A, 41B) constituting the second heating unit 12b of the bottom surface heating device 12 or the top surface heating device 23. ing. As described above, the size detection device 71 is provided at a position corresponding to each of the electrical heating areas 41 of the bottom surface heating device 12 or the top surface heating device 23.

Moreover, when the size detection apparatus 71 is comprised by an infrared sensor, when the to-be-heated material 30 which is a to-be-cooked thing exists in the detection direction of an infrared sensor, an infrared sensor detects the temperature of the to-be-heated material 30. When the object to be heated 30 does not exist in the detection direction of the infrared sensor, the infrared sensor detects the temperature of the side wall of the heating chamber 40. The presence or absence of the object to be heated 30 in the detection direction of the infrared sensor is detected by the difference between the two temperatures. The size detection device 71 outputs an ON signal to the control device 50 when the object 30 to be heated is present at a position facing the size detection device 71, and outputs an OFF signal when the object 30 is not present. And the control apparatus 50 detects the size of the to-be-heated material 30 mounted in the bottom plate 11 by the position and number which the size detection apparatus 71 output the signal of ON.

Specifically, when the first size detection device 71a and the second size detection device 71b output a signal of ON and the third size detection device 71c outputs a signal of OFF, the control device 50 is the object to be heated. It is determined that 30 is the square shaped bread 30a. Further, when all of the first size detection device 71a, the second size detection device 71b, and the third size detection device 71c are turned on, the control device 50 determines that the mountain shaped bread 30b is used. Further, in the control device 50, when the first size detection device 71a, the second size detection device 71b, and the third size detection device 71c are all turned off, the object 30 to be heated is not placed on the bottom plate 11. It is determined that

As described above, in the heating cooker 100 according to the second embodiment, the bottom heating device 12 and the top surface do not need to be set by the user because the size of the object 30 to be heated is automatically determined. The energization range to the heating device 23 is automatically changed.

In the second embodiment, an ultrasonic sensor is used as the thickness detection device 70, but the present invention is not limited thereto. For example, a plurality of infrared sensors may be used along the vertical direction of the heating chamber side wall 22. You may provide. Moreover, although the several infrared sensor was used as the size detection apparatus 71, it is not limited to it, You may use several ultrasonic sensors.

As mentioned above, the heating cooker 100 which concerns on this Embodiment 2 is provided with the thickness detection apparatus 70 which detects the thickness of the to-be-heated material 30, and the control apparatus 50 is based on the information input from the thickness detection apparatus 70. The power supply time or the power supply time to the upper surface heating device 23 is changed.

According to the heating cooker 100 according to the second embodiment, the thickness of the object to be heated 30 is determined automatically. Therefore, according to the thickness of the object to be heated 30, the energizing power or the energizing time to the upper surface heating device 23 Is automatically changed so that the upper surface of the object to be heated 30 has the same tint regardless of the thickness.

In addition, the heating cooker 100 according to the second embodiment includes the size detection device 71 that detects the size of the object to be heated 30, and the control device 50 determines based on the information input from the size detection device 71. In accordance with the size of the object 30 to be heated, the energization range to the bottom surface heating device 12 and the top surface heating device 23 is changed.

According to the heating cooker 100 according to the second embodiment, the bottom heating device 12 and the top heating device do not require the user to set the size of the object 30 because the size of the object 30 is automatically determined. The energization range to 23 is automatically changed.

Summary of Embodiment 2
The heating cooker 100 which concerns on this Embodiment 2 was the following structures. That is,
A bottom plate 11 on which a baking pan as the heating target 30 is placed;
A bottom heating device 12 for heating the bottom plate 11;
A heating chamber top plate 21 which covers the space above the bottom plate 11 so as to be freely opened and closed;
A top heating device 23 for heating the top of the heating chamber;
A controller 50 for controlling the bottom heating device and the top heating device;
And a size detection device 71 for measuring the size of the object to be heated,
When the heating chamber top plate covers the space above the bottom plate, a heating chamber is formed between them,
The control device is configured to receive a signal indicating the size of the object to be heated 30 determined by the size detection device 71, and to determine an energization range to the bottom surface heating device 12 and the top surface heating device 23. The

That is, in the second embodiment, the control device 50 can automatically perform heating and cooking in the current-carrying range corresponding to the object to be heated 30, and power consumption unnecessary for cooking can be suppressed, thereby achieving energy saving.

Also in the second embodiment, as in the first embodiment, the first polymerization surface P1 and the second polymerization surface P2 are, for example, flat surfaces having a width of 10 mm or more, and a minute gap is formed between them. Because they face each other, there is a constant air flow blocking effect, and the heating chamber 40 is sealed.

For this reason, according to the heating cooker 100 of the second embodiment, the water content can be maintained without significantly deteriorating the moisture content which the bread has held from the beginning (before being baked), so that the baking state is delicious. It can be finished.

Since the thickness (the dimension in the vertical direction) of the thickest four-piece bread which is commercially available is about 30 mm, the volume of the heating chamber 40 may be about 2 to 3 times the volume of the bread. Since an oven-type toaster as conventionally known is baked in a space as large as 10 times or more, the same effect as that of the second embodiment can not be expected.

Third Embodiment
The third embodiment of the present invention will be described below, but the descriptions of the same parts as in the first and second embodiments will be omitted, and the same or corresponding parts as in the first and second embodiments will be denoted by the same reference numerals. .

FIG. 13 is a longitudinal cross-sectional view showing the main parts of the lid 20 of the heating cooker 100 according to Embodiment 3 of the present invention. FIG. 14 is a schematic view of the bottom plate 11 on which the square-shaped bread pan 30a according to the third embodiment of the present invention is placed.

As shown in FIG. 13, the bottom heating device 12 according to the third embodiment is a planar heater in which a plurality of electrotropic panels 41A are arranged on a mica plate. Further, as in the case shown in FIG. 12, a plurality of size detection devices 71 equal to the size of the electrotropical area 41A are provided side by side along the horizontal direction of the heating chamber side wall 22 in a horizontal straight line. The plurality of size detection devices 71 are provided at positions corresponding to the respective electric tropical areas 41A. Further, the energization range switching device 60 includes unit switching sections 60P of the same number of energization ranges as the electrical tropical area 41, and a plurality of unit switching sections 60P are provided for each of the electrical tropical areas 41A.

Further, the upper surface heating device 23 is a planar heater in which a plurality of electrotropic panels 41B are arrayed on a mica plate. In addition, although the case where the bottom face heating apparatus 12 is a planar heater is illustrated in FIG. 13, it is the same structure also when the upper surface heating apparatus 23 is a planar heater. In addition, the electro-tropics 41B of the upper surface heating device 23 are provided at positions opposed to the respective electro-tropics 41A of the bottom surface heating device 12 in the vertical direction.

Based on the information input from size detection device 71, control device 50 turns on unit switching portion 60P of energization range switching device 60 provided in electrical tropical area 41A corresponding to size detection device 71 being on. The power is supplied to the electric tropical 41A. Further, the unit switching unit 60P provided in the electrical tropical area 41A corresponding to the size detection device 71 being OFF is turned off to turn off the electrical conduction to the electrical tropical area 41A.

Thus, in the heating cooker 100 according to the third embodiment, the size detection device 71 is provided at a position corresponding to each electrotropical area 41A, and for each electrotropical area 41A, energization to the electrotropical area 41A is performed. A unit switching unit 60P of the energization range switching device 60 for turning on and off is provided. Then, only the unit switching unit 60P provided in the electrical tropical area 41A corresponding to the size detection device 71 that is on is turned on to energize the electrical tropical area 41A. Since the electric tropical 41B of the upper surface heating device 23 corresponding to each electric tropical 41A turns ON / OFF corresponding to ON / OFF of the electric tropical 41A, the object 30 to be heated is at the same position above and below It is heated by the electric

tropical area

41A and 41B.

And in cooking-by-heating machine 100 concerning this Embodiment 3, heating is carried out by changing the energization range to bottom heating device 12 and upper surface heating device 23 according to the size of heating object 30, and the position where it is placed. The range can be finely changed. Therefore, unnecessary power consumption during cooking can be further suppressed, and further energy saving can be achieved.

In the third embodiment, a planar heater in which a plurality of

electrotropic panels

41A and 41B are arrayed on a mica plate is used for one bottom heating device 12 and one upper heating device 23, respectively. However, the present invention is not limited thereto, and a plurality of bottom surface heating devices 12 and a plurality of top surface heating devices 23 may be provided.

When the bottom surface heating device 12 and the top surface heating device 23 are provided in plurality, the top surface heating device 23 is provided at a position facing the bottom surface heating device 12. Further, the size detection device 71 is provided at a position corresponding to each bottom heating device 12 or each top heating device 23.

Then, based on the information input from the size detection device 71, the control device 50 energizes the bottom surface heating device 12 and the top surface heating device 23 corresponding to the size detection device 71 that is turned on. Moreover, the current supply to the bottom surface heating device 12 and the top surface heating device 23 corresponding to the size detection device 71 being turned off is turned off.

As is apparent from the above description, the heating cooker 100 according to the third embodiment is a planar heater in which a plurality of

electrotropic panels

41A and 41B are arranged on the mica plate in the bottom heating device 12 and the top heating device 23, respectively. Is used. In addition, the electric heating area 41B of the top heating device 23 is provided at a position facing each electric heating area 41A of the bottom heating device 12, and the size detection device 71 is an electric charging of the bottom heating device 12 or the top heating device 23. It is provided in the position corresponding to the tropical area 41, respectively. Moreover, the two electricity supply range switching apparatuses 60 are respectively equipped with the unit switching part 60P for every electric

tropical area

41A, 41B. The control device 50 switches the unit switching unit 60P in accordance with the size of the object 30 to be heated.

Alternatively, the heating cooker 100 according to the third embodiment includes a plurality of bottom surface heating devices 12 and a plurality of top surface heating devices 23, and the top surface heating devices 23 are provided at positions facing the respective bottom surface heating devices 12. . Further, the size detection device 71 is provided at a position corresponding to each bottom heating device 12 or each top heating device 23. Then, the control device 50 changes the number of the bottom heating devices 12 and the top heating devices 23 to be energized according to the size of the object to be heated 30.

According to heating cooker 100 according to the third embodiment, the conduction range to bottom heating device 12 and top heating device 23 is switched according to the size of object to be heated 30 and the position where it is placed. Therefore, the heating range can be finely changed. Therefore, unnecessary power consumption during cooking can be further suppressed, and further energy saving can be achieved.

Fourth Embodiment
The fourth embodiment of the present invention will be described below, but the descriptions of the same parts as in the first to third embodiments will be omitted, and the same or corresponding parts as in the first to third embodiments will be assigned the same reference numerals. .

FIG. 15 is a front view showing the appearance of the heating cooker according to Embodiment 4 of the present invention. FIG. 16 is a schematic cross-sectional view of a heating cooker according to Embodiment 4 of the present invention. The lid 20 of the heating cooker 100 according to the fourth embodiment is characterized by being provided with the side heating device 27.

In the fourth embodiment, as shown in FIG. 15, the operation unit 15 includes the side surface heating setting operation unit 15E (side surface heating setting operation unit). The side surface heating setting operation unit 15 d is for the user to set “ON” or “ON” of energization of the side surface heating device 27. The setting contents for energizing the side heating device 27 may be set in the setting process of the “heating mode” or the “burnout”.

As shown in FIG. 16, the electric heater wire constituting the side heating device 27 is provided on the outer surface side of the heating chamber side wall 22 and heats the heating chamber 40 from the side by heating the heating chamber side wall 22. is there. In other words, the object 30 is heated from the side by radiant heat from the heating chamber side wall 22. The side heating device 27 is, for example, a heating wire, and is wound around the outer surface of the heating chamber side wall 22 which is a vertical surface a plurality of times so as to surround it. Needless to say, the insulation process is performed between the electric heater wire and the heating chamber side wall 22.

In the fourth embodiment, at least the outer surface side of the heating chamber side wall 22 is coated with a black heat resistant coating so that the thermal efficiency of the heating chamber side wall 22 can be increased.

When the control unit 50 sets "ON" of energization to the side surface heating device 27 by the side surface heating setting operation unit 15E, after starting cooking, in addition to energization to the bottom surface heating device 12 and the top surface heating device 23, the side surface The heating device 27 is energized, and the radiant heat from the heating chamber side wall 22 heats the object to be heated 30 from the side. Therefore, not only the upper and lower surfaces of the object to be heated 30 but also the side surfaces can be heated intensively.

In addition, when “no” of energization to side heating device 27 is set, control device 50 does not conduct energization to side heating device 27 after the start of cooking, and the bottom heating device as in the first embodiment. 12 and the top heating device 23 are energized.

Therefore, in the heating cooker 100 according to the fourth embodiment, the user can select the finish of the side surface of the object 30 to be heated. In particular, when the object 30 to be heated is a bread pan, if the "presence" of energization to the side surface heating device 27 is set, the ear parts have a crisp feeling by intensively heating the "ears" of the bread pan. It can be baked to the state. In addition, when “no” of energization to the side surface heating device 27 is set, the ear portion can be baked while being soft.

As is clear from the above description, the heating cooker 100 according to the fourth embodiment includes the side heating setting operation unit 15E in which the user sets whether or not the side heating device 27 is energized. Then, when presence of energization to the side surface heating device 27 is set by the side surface heating setting operation unit 15E, the control device 50 energizes the side surface heating device 27 after cooking is started, and the bread is baked by the radiation heat from the heating chamber side wall 22. It heats the sides of the

According to heating cooker 100 according to the fourth embodiment, even when the ear portion is heated intensively, even if the ear portion is appropriately baked, if "presence" of energization to side heating device 27 is set. be able to.

Also in the fourth embodiment, as described in the first embodiment, there is a ring (hollow cylinder) shaped support frame 46 which is formed to surround the entire periphery of the heating chamber side wall 22. The support frame is entirely formed of heat-resistant plastic. 46A is the lower surface of the support frame 46, and this lower surface is the second polymerization surface P2.

In FIG. 16, G 3 is a third air gap formed between the end surface of the support frame 46 in the front in the vertical state and the side wall on the front side of the lid 20. G4 is a fourth air gap formed between the end face of the wall in the vertical state, which is also behind the support frame 46, and the side wall on the rear side of the lid 20. Although not shown, the right and left sides of the support frame 46 also have an air gap between the side wall surface of the cover 20, so that the cover 20 of the entire periphery of the support frame 46 is eventually obtained. There is an air gap between the side wall surfaces.

In FIG. 16, G 5 is a fifth gap formed between the end surface of the vertical wall surface formed on the support frame 46 and the front, rear, left and right outer wall surfaces of the heating chamber side wall 22. With the fifth gap G5 and the third and fourth gaps G3 and G4, heat insulation is provided to the lid 20 serving as the outer shell of the heating cooker 100 before and after and to the left and right of the heating chamber side wall 22. It can be enhanced.

For this reason, the outer peripheral side of the side surface heating device 27 is also surrounded by the vertical wall surface formed on the support frame 46, and further, the third gap G3 and the fourth gap G4 exist outside thereof. Even when the side wall 22 becomes high temperature, the lid case 20A constituting the outer shell of the lid 20 is rarely heated, and the temperature rise of the lid case 20A can be suppressed. Therefore, even if the user touches the surface of the lid 20 during or immediately after the cooking, the user does not feel the heat.

Summary of Embodiment 4
The heating cooker 100 which concerns on this Embodiment 4 was the following structures. That is,
The heating cooker main body 10 in which the first heating surface 11C on which the object to be heated is placed is exposed at the upper surface,
And a lid 20 disposed so as to freely open and close the upper surface of the heating cooker main body 10 and having the second heating surface 21 exposed on the lower surface.
In a state where the upper surface of the heating cooker main body 10 is closed by the lid 20, the first heating surface 11C and the second heating surface 21 face each other from above and below, and between the both, a heated object The heating chamber 40 is formed isolated from the outside that can accommodate
The second heating surface 21 constitutes a ceiling surface of the heating chamber 40 and radiates radiant heat toward the first heating surface 11C side,
Furthermore, on the heating chamber side wall 22 which is continuous from the peripheral portion of the second heating surface 21 and which forms the entire side surface of the heating chamber 40, a side heating device 27 provided with an electric heater is arranged ,
The side surface heating device 27 is configured to be able to heat the outer peripheral portion of the object to be heated by radiant heat from the side surface of the heating chamber 40.

According to the configuration of the fourth embodiment, when the object to be heated is bread, the water content inside the bread is maintained, the baking unevenness is small, and the surrounding ear can be baked.

Moreover, the heating cooker 100 which concerns on this Embodiment 4 was the following structures. That is,
A heating cooker main body 10 incorporating a bottom plate provided with a first heating surface 11C which is flat and wider than a planar range of the heating object for placing the heating object;
A lid 20 supported by the heating cooker body 10 so as to be openable and closable and provided with a second heating surface 21 and forming a heating chamber 40 with the first heating surface 11C in a closed state;
A control device 50 for controlling heating by the first heating surface 11C and the second heating surface 21;
The second heating surface 21 has a plane area equivalent to that of the first heating surface 11C, and faces the first heating surface 11C,
Furthermore, the second heating surface 21 is a flat surface that is wider than the planar range of the object to be heated, and in a state where the lid 20 is closed, the second heating surface 21 is the object to be heated. The heating chamber 40 is the first and second heating surfaces by the overlapping portion between the peripheral portion of the lid 20 and the heating cooker main body 10 by placing the narrow space (air gap) H1 in close proximity. It is the structure used as the space of the sealed state heated by 11C and 21.

Moreover, the heating cooker 100 which concerns on this Embodiment 4 was the following structures. That is,
A bottom plate 11 on which an object to be heated is placed;
A heating chamber top plate 21 which covers the space above the bottom plate 11 so as to be freely opened and closed;
The heating chamber top plate 21 and the

heating sources

12 and 23 of the bottom plate 11;
And d) a control device 50 for controlling energization of the

heating sources

12 and 23;
When the heating chamber top plate 21 covers the upper space of the bottom plate 11, a heating chamber 40 serving as a closed space is formed between them.
The bottom plate 11 has a flat first heating surface 11C in contact with the object to be heated;
The heating chamber top plate 21 has a flat second heating surface spaced apart from the object to be heated to heat it with radiant heat,
The first heating surface and the second heating surface are all non-air-permeable structures that do not allow air convection.
In the configuration, the first heating surface and the second heating surface are in a position where both of them overlap in the vertical direction, and have a larger area than the entire plane of the object to be heated. is there.

With such a configuration, an effect equivalent to that of the first embodiment can be obtained. That is, when the material to be heated is bread, the moisture inside the bread can be maintained, and the baking unevenness can be reduced and baked.

Also in the fourth embodiment, as is apparent from FIG. 16, between the rear end surface of the normal-sized bread pan placed on the bottom plate 11 and the heating chamber side wall 22 on the rear side. A first gap G1 is formed, and a second gap G2 is formed between the front end surface of the bread pan and the heating chamber side wall 22 on the front side. When a normal "pan-shaped bread" or "square-shaped bread" is placed on the first heating surface 11C of the bottom plate 11, the front-rear direction of the heating chamber 40 is maintained so as to secure the first gap G1. And the inner dimension in the left-right direction, that is, the planar size is set.

Also in the fourth embodiment, as in the first embodiment, the effective length in the front-rear direction of the heating chamber 40 does not contact the heating chamber side wall 22 either forward or backward when a normal size bread is accommodated. Dimensions. Similarly, although not shown, the effective length in the left-right direction of the heating chamber 40 is dimensioned so as not to contact the heating chamber side wall 22 on the right side or the left side when a normal size bread is accommodated. It has become. The first gap G1 and the second gap G2 also relate to the presence of the inclined portion 11B around the first heating surface 11C (front and rear, left and right) in the bottom plate 11, and the inclination thereof If the dimensions in the front-rear and left-right directions of the portion 11B are secured large, the first and second gaps G1 and G2 also become large.

Since it is the structure which considered such 1st space | gap G1 and 2nd space | gap G2, the heating cooker 100 of Embodiment 4 is the following structures. That is,
The heating cooker main body 10 in which the first heating surface 11C on which the object to be heated is placed is exposed at the upper surface,
And a lid 20 disposed so as to freely open and close the upper surface of the heating cooker main body 10 and having the second heating surface 21 exposed on the lower surface.
In a state where the upper surface of the heating cooker main body 10 is closed by the lid 20, the first heating surface 11C and the second heating surface 21 face each other from above and below, and between the both A heating chamber 40 (of effective height dimension H2) isolated from the outside capable of containing
The second heating surface 21 constitutes a ceiling surface of the heating chamber 40 and radiates radiant heat toward the first heating surface 11C side,
The first heating surface 11C is continuous with an inclined surface 11B for restricting the mounting position in the horizontal direction of the object to be heated on the outer side than the outermost peripheral edge thereof, and constitutes the bottom of the heating chamber 40. It is a structure.

According to the configuration of the fourth embodiment, when the object to be heated is placed on the first heating surface 11C, the placement position can be regulated by the inclined surface 11B. Further, as a result, when the lid 20 is closed, at least the front and back sides of the object to be heated are not in contact with the heating chamber side wall 22, and the outer peripheral edge portion of the object to be heated can be appropriately baked. This is particularly effective when baking "an ingredient pan".

Embodiment 5
The fifth embodiment of the present invention will be described below, but the descriptions of the same parts as in the first to fourth embodiments will be omitted, and the same or corresponding parts as those in the first to fourth embodiments will be assigned the same reference numerals. .

FIG. 17 is an external perspective view of the heating cooker 100 according to Embodiment 5 of the present invention in a state in which the lid 20 is opened.
As shown in FIG. 17, in the fifth embodiment, the heating cooker main body 10 has a horizontally long shape. The partition plate 29 is provided in the recess 26 of the lid 20. The partition plate 29 is provided substantially at the center of the recess 26 from the heating chamber side wall 22 on the front side toward the heating chamber side wall 22 on the back side, and the heating chamber 40 is closed when the lid 20 is closed, Divide into two left and right. Moreover, the operation part 15 of the same number as the heating chamber 40 is provided in the front surface of the heating cooker main body 10, and the several operation part 15 is each provided in the position corresponding to each heating chamber 40. As shown in FIG. In addition, the operation unit 15 is integrated into one, and the heating conditions can be switched and set for each heating chamber 40, and only the cooking start operation unit 15d is integrated into one as a unit common to the two heating chambers 40. May be

Further, the bottom heating device 12 and the top heating device 23 are configured to be controllable for each heating chamber 40. For example, the bottom heating device 12 and the top heating device 23 may be respectively provided in the same number or more as the heating chamber 40, and the plurality of bottom heating devices 12 and the top heating device 23 may be configured to be controllable for each heating chamber 40. Further, the bottom heating device 12 and the top heating device 23 each have heating portions equal to or more than the heating chamber 40, and the plurality of heating portions of the bottom heating device 12 and the top heating device 23 can be controlled for each heating chamber 40. You may

Then, the control device 50 controls the bottom heating device 12 and the top heating device 23 based on the content set from the operation unit 15. Then, the cooking is performed in the heating chamber 40 corresponding to the operated operation unit 15.

As described above, in the heating cooker 100 according to the fifth embodiment, since the heating chamber 40 and the operation unit 15 are provided in plurality, it is possible to cook a plurality of objects to be heated 30 at the same time. You can change the setting of the conditions. Therefore, it is possible to simultaneously cook different kinds of the objects to be heated 30 and to finish different for each object to be heated 30.

As mentioned above, the heating cooker 100 which concerns on this Embodiment 5 is provided in the recessed part 26, and the heating chamber 40 (heating space) enclosed by the bottom plate 11 and the recessed part 26 in the state by which the lid 20 was closed. It has a partition plate 29 for partitioning. The bottom heating device 12 and the top heating device 23 can be controlled for each heating chamber 40. The operation unit 15 is provided for each heating chamber 40 and the user sets the heating and cooking conditions.

According to heating cooker 100 according to the fifth embodiment, a plurality of objects to be heated 30 can be cooked simultaneously, and the setting of the cooking conditions can be changed for each heating chamber 40. Therefore, it is possible to simultaneously cook different kinds of the objects to be heated 30 and to finish different for each object to be heated 30.

When the cooking start operation unit 15d is common to two or more heating chambers 40, there is a concern that the heating chambers 40 which are not heated originally may be heated. By providing the thickness detection device 70 and the size detection device 71 as described in 3 and 4, it is possible to determine whether or not the object 30 to be heated such as bread is placed in the heating chamber 40. Heating only the heating chamber 40 can easily be realized.

Sixth Embodiment
The sixth embodiment of the present invention will be described below, but the description of the same parts as those of the first to fifth embodiments will be omitted, and the same or corresponding parts as those of the first to fifth embodiments will be denoted by the same reference numerals. .

FIG. 18 is a longitudinal sectional conceptual diagram showing the basic configuration of the heating cooker 100 according to Embodiment 6 of the present invention. As shown in FIG. 18, in the sixth embodiment, the first heating surface 11 C of the heating cooker body 10 is above the position of the boundary line PL where the lid and the cooker body open vertically. In the direction.

11B is an inclined surface which becomes lower toward the outer peripheral side of the bottom plate 11. The depression angle is about 45 degrees, but need not be limited to this angle.

With such a configuration, when the lid 20 is opened, the front side and the left and right side surfaces of the object to be heated 30 are above the first heating surface 11C. It is easy to grasp the peripheral part of, for example, the ear part of bread. Therefore, the effect that a user can take out the to-be-heated material 30 easily from the top of the heating cooker 100 after completion of cooking can be expected.

Embodiment 7
The seventh embodiment of the present invention will be described below, but the description of the same parts as those of the first to sixth embodiments will be omitted, and the same or corresponding parts as those of the first to sixth embodiments will be assigned the same reference numerals.

FIG. 19 is a longitudinal sectional conceptual diagram showing the basic configuration of the heating cooker 100 according to Embodiment 7 of the present invention. As shown in FIG. 19, in the seventh embodiment, the configuration is such that the object 30 to be heated such as bread is not placed directly on the upper surface of the bottom plate 11.

In FIG. 19, reference numeral 99 denotes a metal support, which is made of a metal having a thermal conductivity better than iron, such as aluminum, an aluminum alloy, copper or the like.
The support 99 is formed by pressing a thin metal plate into a thin plate shape, but may be breathable unlike the first heating surface 11C. For example, it may be a flat plate with numerous through holes made of thin sheet metal called punching metal.

In the seventh embodiment of the present invention, an aluminum plate is used as the support 99 by pressing into a thin plate shape. The support 99 has an edge 99A having a height of about 10 mm to 20 mm continuously formed upward at the outer peripheral edge thereof. Moreover, it has a shape which closely_contact | adheres on the upper surface of the bottom plate 11 except the said edge 99A.

Since the support 99 is only placed on the top surface of the bottom plate 11, the user can take it out for cleaning and cleaning as needed.
The role of the support 99 is to receive the heat when the bottom plate 11 is heated to a high temperature by the bottom surface heating device 12 and to heat the object 30 from below.
For this reason, it is desirable that the bottom surface of the support 99 and the first heating surface 11C of the bottom plate 11 be in direct contact, but a minute gap in which air is present may be present between the two. In other words, the support 99 is one on which the object to be heated 30 is placed, and the bottom plate 11 exerts the function of heating the entire support from the lower side by conductive heat or radiant heat.

According to the configuration of the seventh embodiment, although the configuration in which the object to be heated is not directly placed on the first heating surface 11C, as in the first embodiment, the moisture inside the bread is maintained. It can be baked with little unevenness in baking.
Furthermore, when cooking is continued several times, the user takes out the support 99 and cleans it as necessary, even if debris generated from the object to be heated 30 such as bread, or a part of the food material falls. Because it can be cleaned, it has the advantage of being able to be used cleanly over a long period of time.

Eighth Embodiment
The eighth embodiment of the present invention will be described below, but the descriptions of the same parts as the first to seventh embodiments will be omitted.
FIG. 20 is a longitudinal cross-sectional conceptual diagram showing the basic configuration of the heating cooker 100 according to Embodiment 8 of the present invention. As shown in FIG. 20, in the eighth embodiment, the first heating surface itself of the bottom plate 11 doubles as the bottom heating device 12.

Furthermore, the heating cooker according to the twentieth embodiment is characterized in that the heating chamber top plate 21 itself also serves as the upper surface heating device 23.

The bottom plate 11 is composed of a metal plate having a good heat conductivity such as aluminum, and its peripheral portion is mainly composed of a ceramic heater formed in a thin plate shape. That is, the portion on which the bread as the heating target 30 is directly placed is constituted by the ceramic heater 12S.

Similarly, the heating chamber top plate 21 is formed of a metal plate having good heat conductivity such as aluminum, but the peripheral portion is constituted by a ceramic heater 23S formed mostly in a thin plate shape. The ceramic heater 12S and the ceramic heater 23S are not limited to one sheet, and two or more sheets may be used side by side so as to be adjacent to each other.
The ceramic heater 12S and the ceramic heater 23S have the same planar shape and the same planar area. Thereby, compared with the case where two or more types of ceramic heaters 12S and 23S are used, it is advantageous in cost, and the heating cooker 100 can be manufactured at low cost.

As described in the eighth embodiment, the "bottom surface heating device 12 for heating the bottom plate 11" in the present invention includes the case where the bottom surface heating device 12 itself also serves as the bottom plate. In other words, the bottom heating device 12 itself also serves as the bottom plate 11.
Similarly, as described in the eighth embodiment, the term "upper surface heating device for heating the heating chamber top plate" in the present invention includes the case where the upper surface heating device 23 itself also serves as the heating chamber top plate 21. It is.
Even with the configuration of the eighth embodiment, the same effect as that of the first embodiment can be expected.
Furthermore, since the ceramic heater 12S and the ceramic heater 23S themselves have high electrical insulation with respect to the surroundings, compared to the first embodiment, the electrical insulation structure such as mica can be simplified or omitted, and the manufacturing cost can be improved. It is advantageous.

In the eighth embodiment, the ceramic heater 12S and the ceramic heater 23S are provided, but a thin, light, flexible heater (called a rubber heater) in which both surfaces of the heat generating element are bonded by a heat resistant insulating layer And silicon rubber reinforced with glass cloth into a thin insulating sheet of around 1 mm, and various heating heaters such as heaters integrally formed on the sheet are precisely patterned and provided to the market These heaters may be used as they are.

Embodiment 9
The ninth embodiment of the present invention will be described below, but the description of the same parts as those of the first to eighth embodiments will be omitted.
FIG. 21: is a schematic diagram which shows the dimensional relationship of the 1st heating surface of the heating cooker which concerns on Embodiment 9, 2nd heating surface, and to-be-heated material.

W2 indicates the dimension in the vertical direction (front-rear direction) of the flat portion (first heating surface) 11C on which the bread or the like is placed in the bottom plate 11, and L2 indicates the maximum lateral width dimension.

WX indicates the longitudinal direction (front-rear direction) dimension of the second heating surface 21, and LX indicates the maximum lateral width dimension.

The first heating surface 11C and the second heating surface 21 have the same shape and area, and overlap in the vertical direction. That is, when projected upward and downward, the first heating surface 11C and the second heating surface 21 completely overlap.

Reference numeral 23 denotes an upper heating device 23 such as a planar heater, which is substantially the entire area of the second heating surface 21 so as to cover even the outermost peripheral edge of the second heating surface 21 as indicated by a dashed dotted line. It has been arranged.

Although not shown, a bottom heating device 12 such as a planar heater is disposed on the first heating surface 11C, and the bottom heating device 12 also extends to the outermost peripheral edge of the first heating surface 11C. In order to cover, it is arrange | positioned in the substantially whole area of the 1st heating surface 11C.

HX is the height dimension of the space corresponding to the space (air gap) H1 as shown in the first embodiment. That is, in the ninth embodiment, the cover 20 is necessarily formed between the second heating surface 21 and the first heating surface 11C in a state where the lid 20 is stacked on the heating cooker main body 10. Height of the space

Reference numeral 30 denotes a sliced bread (square bread) which is a representative of the object to be heated 30. The thickness of the thickest four-piece bread as this square-shaped bread is about 30 mm, so the height dimension HX of the space for determining the ceiling height of the heating chamber 40 is greater than the thickness of the bread Also, it is set to 50 mm so as to be about 20 mm larger.
That is, if the thickness of a four-piece bread is about 30 mm, and the single bread is accommodated in the heating chamber 40, the space between the upper surface of the bread and the second heating surface 21 is There is a space of about 20 mm.

Incidentally, since the longitudinal dimension WX is 180 mm, the lateral width dimension LX is 130 mm, and the HX is 50 mm, the volume of the heating chamber 40 is 1170 cubic centimeters.
On the other hand, the thickness of a four-piece bread loaf is 576 cubic centimeters because the standard one has a longitudinal dimension of about 160 mm, a lateral width dimension of 120 mm, and a thickness (height) of about 30 mm. .

In the heating cooker main body 10, the first heating surface 11C which spreads in the horizontal direction, and the inclined surface 11B which is continuous with the peripheral portion of the first heating surface 11C and which is formed lower than the height of the bread. Is equipped. The inclined surface 11B is formed by 10 mm in the horizontal direction on the front and rear sides of the first heating surface 11C. The depth DP (see FIG. 20) of the first heating surface is 10 mm. For this reason, the inclined surface has an elevation angle of 45 degrees. Further, on the right side and the left side of the first heating surface 11C, approximately 5 mm is formed in the horizontal direction. Therefore, the inclined surfaces 11B on the left and right sides have a larger inclination angle than the inclined surfaces 11B in the front-rear direction.

As apparent from the above description, in the ninth embodiment, the volume (1170 cubic centimeters) of the heating chamber 40 is about 2 of the maximum volume (576 cubic centimeters) obtained from the external dimensions of the bread as the object 30 to be heated. It is a double.

When the volume of the heating chamber 40 is increased, it is necessary to increase the (electric) heating energy at the time of heating the bread, but in addition, the degree of diffusion of water out of the bread increases and it is completed as toast I don't feel good
So, in this Embodiment 9, although the volume of the heating chamber 40 is set so that it may become about twice the largest volume of the bread as the to-be-heated material 30, it is desirable that it is 3 times or less. In addition, if the volume of the heating chamber 40 is made too small in reverse, there is a concern that the ingredients may contact and adhere to the ceiling surface of the heating chamber 40 or the like when cooking the "set bread". Because of this, a range of 1.5 times to 3 times is preferable in consideration of the "set bread for ingredients."

The lid 20 according to the ninth embodiment is not supported by the heating cooker main body 10 at its rear portion by a hinge as in the first embodiment, but from directly above the heating cooker main body 10 It is a form to put on. The lid 20 and the heating cooker body 10 are connected by a flexible electric cable, and a command for the control device 50 of the heating cooker body 10 supplies power for heat generation to the electric cable. It has become so.

Summary of Embodiment 9
The heating cooker 100 according to the ninth embodiment has the following configuration. That is,
A heating cooker body 10 provided with a first heating surface 11C at the top,
And a lid 20 disposed so as to overlap the upper surface of the heating cooker main body 10 and having a second heating surface 21 at the lower part thereof,
The heating object 30 heated from the first heating surface 11C and the second heating surface 21 is disposed between the lid 20 and the heating cooker body 10 in a state where the lid 20 and the heating cooker body 10 are vertically overlapped. The heating chamber 40 which can be accommodated is sectioned,
The volume of the heating chamber 40 is three times or less the volume of the sliced bread as the heating target 30 accommodated in the heating chamber 40, and the second heating surface A gap H1 is formed between H.21 and the upper surface of the bread.

According to the configuration of the ninth embodiment, when the object to be heated is bread, the moisture inside the bread can be maintained and baked to a delicious toast.

Other Embodiments and Modifications
The various configurations specifically described in the first to ninth embodiments can be modified as follows. Further, the present invention is not intended to be limited to these embodiments.

(1) In the first embodiment, the first polymerization surface P1 has at least 10 mm or more in the lateral width dimensions XR and XR, but the two lateral widths do not have to be the same, and even if they are different good. Similarly, the width dimensions in the front-rear direction do not have to be the same for XB and XF, and they may be different.
Also, the first polymerization surface P1 does not necessarily have to be one flat surface, and for example, the first polymerization surface P1 may be formed by two, the polymerization surface A and the polymerization surface B which is several mm to 10 mm higher than the polymerization surface A. You may comprise the superposition | polymerization surface P1 of 1. FIG. In this case, the polymerization surface A may be on the outer peripheral side of the polymerization surface B, or conversely, may be disposed on the inner peripheral side. The same modification is possible for the second polymerization surface P2.

(2) In the first to ninth embodiments, it has been described that the first heating surface 11C and the second heating surface 21 face each other from above and below when the lid 20 is closed. The meaning does not mean that no structure intervenes between the first heating surface 11C and the second heating surface 21. For example, in the air gap H1 in the first embodiment, an air-permeable frame extending horizontally, a large meshed net plate, or a simple rod (hereinafter collectively referred to as "installation guide material" ) May be installed. The installation guide member 101 may be, for example, a square frame as shown by a broken line in FIG. 22 and is supported on the upper rear surface of the heating cooker main body 10 and becomes vertical when the lid 20 is opened. As in the case where the bread is placed in a self-holding manner, it may be lowered to a horizontal position to indicate the maximum height at which cooking can be performed. When the lid 20 is closed, the placement guide member 101 for mounting extends horizontally on the object to be heated, but is formed of a thin wire, and the second heating surface There is no adverse effect to block the radiant heat from 21.

(3) In the first to ninth embodiments, it has been described that the heating chamber 40 is a closed space which is not intended for air flow with the outside when the lid 20 is closed. For example, as shown in FIG. 21, for example, a first window 102 is formed on the front side of the lid case 20A so that the inside of the heating chamber 40 can be visually confirmed from the outside of the lid 20. Also good. A second window 103 (not shown) covered with heat-resistant glass or the like is provided on the front side of the heating chamber side wall 22 corresponding to the inside of the first window. In this way, the user visually confirms the condition of the internal space of the heating chamber 40, particularly the air gap H1, while heating and cooking from the front side of the heating cooker body 10 through the first and second windows 102 and 103. It has the merit of being able to

(4) In the first to ninth embodiments, the entire first heating surface 11C is a flat surface, and the entire heating chamber top plate 21 to be the second heating surface is also a flat surface. The present invention is not at all limited to such a flat surface. For example, fine irregularities may be formed on part of the second heating surface 21. Further, the sloped surface may be formed so that the central portion becomes higher and the roof becomes lower as going to left or right or front or back, or a combination of a horizontal flat surface and a sloped surface may be used. Similarly, the first heating surface 11C may be partially or entirely subjected to fine concavo-convex processing, and the heights of the central portion and the periphery are slightly changed, for example, stepwise from the central portion to the periphery The first heating surface 11C may be formed by an assembly of a plurality of lower surfaces.

The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The substantial scope of the present invention is shown not by the above description but by the scope of the claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.

The heating cooker according to the present invention can be widely used not only in kitchens of general houses but also in kitchens such as public facilities and stores.

DP depth of first heating surface, G1 first void, G2 second void, G3 third void, G4 fourth void, G5 fifth void, G6 sixth void, G7 seventh Void, P1 first polymerization surface, P2 second polymerization surface, PL boundary line, 10 heating cooker main body, 11 bottom plate, 11A peripheral portion, 11C flat surface (first heating surface), 12 bottom heating device, 12a first heating unit, 12b second heating unit, 13 temperature detection device, 14 power supply substrate, 15 operation unit, 15A mode setting operation unit, 15B burn color setting operation unit, 15C size setting operation unit, 15D cooking start operation unit, 15E Side surface heating setting operation unit (side surface heating setting operation means), 16 operation substrate, 17 peripheral edge portion, 17a groove, 19 hinge portion, 20 lid body, 21 heating chamber top plate (second heating surface), 2 Heating chamber side wall, 23 upper surface heating device, 24 sealing member, 25 handle, 26 recessed portion, 28 peripheral edge portion, 28 a protruding portion, 29 partition plate, 30 heated object, 30 a square shaped bread, 30 b mountain shaped bread, 40 heating chamber , 41 electrotropic, 41A electrotropic, 41B electrotropic, 50 control device, 60 energization range switching device, 60P unit switching portion, 61 first switching portion, 62 second switching portion, 70 thickness detecting device, 71 size detecting device , 71a 1st size detection device, 71b 2nd size detection device, 71c 3rd size detection device, 75 1st lower case, 76 air gap, 77 operation part cover, 99 support body, 100 heating cooker, 101 guide material for installation , 102 first window, 104 support.

Claims

A bottom plate which transfers heat to the object to be heated in contact with or close to the lower surface of the object to be heated;
A bottom heating device for heating the bottom plate;
A heating chamber top plate which covers the space above the bottom plate so as to be able to open and close;
A top heating device for heating the heating chamber top plate;
A controller for controlling the bottom heating device and the top heating device;
When the heating chamber top plate covers the space above the bottom plate, a heating chamber shielded from the outside is formed between them,
The said bottom plate heats the said to-be-heated material accommodated in the said heating chamber from the downward direction, The said heating chamber top plate radiates | emits radiant heat to the said to-be-heated material.
A heating cooker main body incorporating a first heating surface which is flat and wider than a planar range of the heating target for mounting the heating target;
A lid which is openably and closably supported by the heating cooker body and which has a second heating surface and which forms a heating chamber with the first heating surface in a closed state;
A controller configured to control heating by the first heating surface and the second heating surface;
The second heating surface faces the first heating surface, and is a flat surface wider than the planar range of the object to be heated, and the second heating is performed in a state in which the lid is closed. The surface is in a state in which the object to be heated is placed in a narrow space and brought close to it, and the first and second heating surfaces are heated by the overlapping portion of the peripheral portion of the lid and the heating cooker main body. The cooker becomes a sealed space heated by.
A bottom plate having a first heating surface which transfers heat to the object to be heated in contact with or close to the lower surface of the object to be heated;
A heating cooker body disposed to expose the bottom plate on the top surface;
A heating chamber top plate having a second heating surface for emitting radiant heat to the upper surface of the object to be heated;
A lid which is disposed so that the heating chamber top plate is exposed to the lower surface, and which opens and closes the upper side of the bottom plate;
And a controller.
The upper surface of the heating cooker body has a first polymerization surface surrounding the front, rear, left and right of the bottom plate,
The lower surface of the lid has a second polymerization surface surrounding the front, rear, left and right of the heating chamber top plate,
The first polymerization surface and the second polymerization surface are in contact with or in proximity to each other in a state where the lid overlaps the heating cooker main body so that the lid covers the top of the bottom plate. A heating cooker characterized in that a blocked heating chamber is formed.
A non-air-permeable bottom plate having a first heating surface which transfers heat to the object to be heated in contact with or close to the lower surface of the object;
A bottom heating device for heating the bottom plate from below;
A heating chamber top plate which covers the upper space of the bottom plate in an openable / closable manner and which has a second heating surface;
An upper surface heating device configured to heat the heating chamber top plate from above;
A controller for controlling the bottom heating device and the top heating device;
When the heating chamber top plate covers the space above the bottom plate, a heating chamber is formed between them,
In a state in which the heating chamber is formed between the bottom plate and the heating chamber top plate, the first heating surface and the second heating surface face each other larger than the size of the object to be heated in the vertical direction. A heating cooker characterized by having a configuration facing each other at intervals.
First heating means for heating the first heating surface; and second heating means for heating the second heating surface.
A control device for controlling energization of the first and second heating means, respectively;
And a control unit operated by the user.
The operation unit includes at least one of a mode setting operation unit for selecting the type of the object to be heated, a color setting operation unit for setting the color, and a size setting operation unit for setting the energization range. The heating cooker according to any one of claims 2 to 4, characterized in that
The size setting operation unit transmits a size setting signal to the control device,
6. The heating cooker according to claim 5, wherein the control device is configured to receive the size setting signal and determine an energization range to the first heating unit and the second heating unit. .
First heating means for heating the first heating surface; and second heating means for heating the second heating surface.
A size detection unit that measures the size of the object to be heated;
The control device is configured to receive a signal indicating the size of the object to be heated determined by the size detection unit, and to determine an energization range to the first heating unit and the second heating unit. The heating cooker according to any one of claims 2 to 4, characterized in that
A side heating device for heating the side wall of the heating chamber;
The heating cooker according to claim 1, wherein the control device controls energization to the side surface heating device.
The control device can switch between a state in which current is supplied to both the bottom surface heating device and the top surface heating device, and a state in which current is supplied to all of the bottom surface heating device, the top surface heating device and the side surface heating device. The heating cooker according to claim 8, characterized in that
First heating means for heating the first heating surface; and second heating means for heating the second heating surface.
A side heating device for heating the side wall of the heating chamber;
The heating and cooking apparatus according to any one of claims 2 to 4, wherein the control device controls energization of the first heating unit, the second heating unit, and the side heating device. vessel.
The controller is configured to energize both the bottom heating device as the first heating means and the top heating device as the second heating means, the bottom heating device, the top heating device, and the side surface. The heating cooker according to claim 10, characterized in that it is possible to switch between a state in which three members of the heating device are energized.
The control device outputs a conduction range designation signal,
It further comprises an energization range switching device for controlling energization to the bottom heating device which is the first heating means and the top heating device which is the second heating means in response to an energization range designation signal. The heating cooker according to claim 6.
The heating cooker main body disposed to expose the bottom plate to the upper surface, and a lid disposed to expose the heating chamber top plate to the lower surface.
The upper surface of the heating cooker body has a first polymerization surface surrounding the front, rear, left and right of the bottom plate,
The lower surface of the lid has a second polymerization surface surrounding the front, rear, left and right of the heating chamber top plate,
In a state where the heating chamber top plate on the lid side is overlapped to cover the upper surface of the heating cooker main body, the first polymerization surface and the second polymerization surface are in contact with or close to each other, and the inside of the heating chamber The heating cooker according to claim 1, wherein the space is isolated from the outside.
The bottom plate has a flat first heating surface in contact with the object to be heated;
The heating chamber top plate has a flat second heating surface for heating the object to be heated by radiant heat,
The heating cooker according to claim 1, wherein the first heating surface and the second heating surface have a uniform facing distance over both of them.
The bottom plate has a flat first heating surface in contact with the object to be heated;
The heating chamber top plate has a flat second heating surface for heating the object to be heated by radiant heat,
The heating cooker according to claim 1, wherein the first heating surface and the second heating surface are all non-air-permeable structures.
The conduction range switching device is a first switching unit that switches a conduction range to the bottom heating device.
13. The heating cooker according to claim 12, further comprising: a second switching unit configured to switch an energization range to the upper heating device.
In the bottom heating device and the top heating device, planar heaters in which a plurality of electrotropics are arranged on a mica plate are used, respectively.
The heating cooker according to claim 1, wherein the electric tropical of the top heating device is provided at a position facing the electric tropical of the bottom heating device.
A plurality of each of the bottom heating device and the top heating device are provided,
The heating cooker according to claim 1, wherein the control device changes the numbers of the bottom heating device and the top heating device to be energized according to the size of the object to be heated.
And a sealing member provided along the lower end of the side wall of the heating chamber,
The heating cooker according to claim 3, wherein the sealing member is in close contact with the peripheral portion of the bottom plate in a state where the lid is closed.
A groove formed on the upper surface peripheral portion of the heating cooker body,
And a projection provided on the peripheral edge of the lower surface of the lid.
The heating cooker according to claim 2 or 3, wherein the projection engages with the groove when the lid is closed.
A projection provided on the periphery of the upper surface of the heating cooker body;
And a groove formed along the periphery of the lower surface of the lid.
The heating cooker according to claim 2 or 3, wherein the projection engages with the groove when the lid is closed.
A thickness detection device for detecting the thickness of the object to be heated;
The controller is
The heating cooker according to claim 1 or 4, wherein the electric power or the electric conduction time to the upper surface heating device is changed based on the information inputted from the thickness detection device.
It further comprises an operation unit operated by the user,
The heating chamber further includes a partition plate which divides the inside into at least two or more heating spaces,
The operation unit is provided so that cooking conditions can be set independently for each heating space partitioned by the partition plate.
The heating cooker according to claim 1 or 4, wherein the bottom heating device and the top heating device can be controlled for each heating space.
First heating means for heating the first heating surface; and second heating means for heating the second heating surface.
A control device for controlling energization of the first and second heating means, respectively;
And an operation unit for commanding the heating and cooking conditions to the control device;
The heating chamber further includes a partition plate which divides the inside into at least two or more heating spaces,
The heating cooker according to claim 2 or 3, wherein the first heating unit and the second heating unit can be controlled for each heating space by the operation unit.
A cooker body in which a first heating surface on which an object to be heated is placed is exposed at the upper surface,
A lid which is disposed so as to freely open and close the upper surface of the cooker body, and which has a second heating surface exposed on the lower surface;
When the top surface of the cooker body is closed by the lid, the first heating surface and the second heating surface face each other from above and below, and an object to be heated can be accommodated between the two, A heating chamber is formed, which is configured to shut off the air flow from the outside.
The second heating surface constitutes a ceiling surface of the heating chamber and radiates radiant heat toward the first heating surface side.
The first heating surface is characterized in that an inclined surface which regulates the mounting position in the horizontal direction of the object to be heated is continuous outside the outermost peripheral edge thereof, and constitutes the bottom surface of the heating chamber. To cook with a cooker.
The heating cooker according to claim 25, wherein the inclined surface is formed at the same inclination angle in the front-rear direction and the left-right direction from the center in the front-rear and left-right directions of the first heating surface. .
26. The apparatus according to claim 25, wherein the first heating surface and the inclined surface are constituted by a single metal plate, and the first heating surface is a single flat surface as a whole. Cooker.
When the lid is closed, the second heating surface approaches the top surface of the object to be heated, and is disposed at the overlapping portion between the peripheral portion of the lid and the upper portion of the cooker body. The heating cooker according to claim 25, wherein the heating chamber is a sealed space by at least one of a sealing member and a labyrinth structure.
The lid further comprises a lid case constituting an outer shell thereof,
The first heat shield material is provided in the inside of the lid body to form an air gap between the second heating surface and the inner wall surface of the lid case. Cooker.
The lid further comprises a lid case constituting an outer shell thereof,
In the inside of the lid, there is provided a first heat shield which forms a gap between the second heating surface and the inner wall surface of the lid case.
26. The heating cooker according to claim 25, wherein another gap is formed between the first heat shield and the inner wall surface of the lid case.
The lid further comprises a lid case constituting an outer shell thereof,
A second heat shield is provided inside the lid to form a gap between the second heating surface and the inner wall surface of the lid case, and the front and rear left and right of the heating chamber A first heat shield forming another space between the side wall surface of the cover and the inner wall surface of the lid case,
26. The heating cooker according to claim 25, wherein the two air gaps communicate with each other outside the heating chamber inside the lid.
The lid further comprises a lid case constituting an outer shell thereof,
A second heat shield is provided inside the lid to form a gap between the second heating surface and the inner wall surface of the lid case, and the front and rear left and right of the heating chamber A first heat shield forming another space between the side wall surface of the cover and the inner wall surface of the lid case,
26. The heating cooker according to claim 25, wherein the first heat shield member forms a polymerization surface facing the cooker main body in a state where the lid is closed.
The lid further comprises a lid case constituting an outer shell thereof,
In the inside of the lid, there is provided a first heat shield forming a gap between the front and rear side wall surfaces which become the outer shell of the heating chamber, and the inner wall surface of the lid case,
The first heat shield member forms a polymerization surface facing the cooker main body in a state where the lid is closed, and holds a seal member whose tip portion contacts the cooker main body side. The heating cooker according to claim 25, characterized in that.
The lid further comprises a lid case constituting an outer shell thereof,
Inside the lid is provided a first heat shield forming a gap between the second heating surface and the inner wall surface of the lid case, and the outer peripheral edge of the heating chamber is the It is supported by the first heat shield so as to be located horizontally away from the overlapping portion on the cooker body side,
26. The heating cooker according to claim 25, wherein the lower surface of the first heat shield member forms a polymerization surface facing the cooker main body in a state where the lid is closed.
The second heat shield comprises a space surrounded by a metal plate and a compressible heat insulating material such as heat insulating glass wool or rock wool inserted into the space. 32. The heating cooker according to claim 31, characterized in that:
First heating means for heating the first heating surface; and second heating means for heating the second heating surface.
26. The heating cooker according to claim 25, further comprising: a control device that controls energization of the first and second heating means.
A side heating device for heating the side wall of the heating chamber;
The heating cooker according to claim 36, wherein the control device controls energization of the side surface heating device.
A side heating device for heating the side wall of the heating chamber;
The controller is configured to energize both the bottom heating device as the first heating means and the top heating device as the second heating means, the bottom heating device, the top heating device, and the side surface. The heating cooker according to claim 36, wherein the heating device can be switched to a state in which three members of the heating device are energized.
The distance to the second heating surface side is three or more times the distance to the first heating surface with reference to the boundary between the lid and the cooker body. The heating cooker according to any one of claims 25 to 36.
The distance to the first heating surface is in the range of 2 mm to 10 mm with reference to the boundary between the lid and the cooker body. The heating cooker as described in any one of 36.
The distance to the second heating surface side is three or more times the distance to the first heating surface with reference to the boundary between the lid and the cooker body.
37. The apparatus according to any one of claims 25 to 36, wherein the volume of the heating chamber is in the range of 1.5 times to 3 times the maximum volume obtained from the external dimensions of the bread serving as the object to be heated. Cooker as described.
A heating cooker body provided with a first heating surface at the top,
A lid disposed on the upper surface of the heating cooker body and having a second heating surface at a lower portion thereof;
A heating chamber capable of containing an object to be heated which is heated from the first heating surface and the second heating surface between the lid and the heating cooker body in a state where the lid and the heating cooker body are vertically overlapped. Are defined and
The volume of the heating chamber is three times or less the volume of the sliced bread as the heating object accommodated in the heating chamber, and the second heating surface and the bread A cooking device in which a gap is formed between the upper surface of
The heating cooker according to claim 42, wherein the volume of the heating chamber is in the range of 1.5 times to 3 times the volume of the bread.
43. The apparatus according to claim 42, wherein the first heating surface and the second heating surface are vertically overlapped with each other in a state in which the lid and the heating cooker body are vertically overlapped. Cooker as described.
The heating cooker main body includes the first heating surface which spreads in the horizontal direction, and an inclined surface which is continuous with the peripheral portion of the first heating surface and which is formed to be lower than the height of the cooking pan. The heating cooker according to any one of claims 42 to 44, characterized in that
A bottom plate on which an object to be heated is placed;
A bottom heating device for heating the bottom plate;
A heating chamber top plate which covers the space above the bottom plate so as to be able to open and close;
A top heating device for heating the heating chamber top plate;
A controller for controlling the bottom heating device and the top heating device;
A size selection means for specifying the size of the object to be heated;
When the heating chamber top plate covers the space above the bottom plate, a heating chamber is formed between them,
The heating cooker having a configuration in which the control device receives a signal indicating the size of the object to be heated specified by the size selection means, and determines an energization range to the bottom surface heating device and the top surface heating device.
A bottom plate on which an object to be heated is placed;
A bottom heating device for heating the bottom plate;
A heating chamber top plate which covers the space above the bottom plate so as to be able to open and close;
A top heating device for heating the heating chamber top plate;
A controller for controlling the bottom heating device and the top heating device;
A size detection unit that measures the size of the object to be heated;
When the heating chamber top plate covers the space above the bottom plate, a heating chamber is formed between them,
The said control apparatus receives the signal which shows the magnitude | size of the said to-be-heated material determined by the said size detection means, and determines the electricity supply range to the said bottom face heating apparatus and the said upper surface heating apparatus.
48. The heating and cooking apparatus according to claim 46, further comprising: an energization range switching device for controlling energization to the bottom heating device and the top heating device in response to a energization range designation signal from the control device. vessel.
The heating cooker main body disposed to expose the bottom plate to the upper surface, and a lid disposed to expose the heating chamber top plate to the lower surface.
The upper surface of the heating cooker body has a first polymerization surface surrounding the front, rear, left and right of the bottom plate,
The lower surface of the lid has a second polymerization surface surrounding the front, rear, left and right of the heating chamber top plate,
In a state where the heating chamber top plate on the lid side is overlapped to cover the upper surface of the heating cooker main body, the first polymerization surface and the second polymerization surface are in contact with or close to each other, and the inside of the heating chamber 48. The heating cooker according to claim 46 or 47, wherein the space is isolated from the outside.
The energization range switching device includes a first switching unit that switches the energization range to the bottom heating device;
50. The heating cooker according to claim 49, further comprising: a second switching unit configured to switch an energization range to the upper heating device.
In the bottom heating device and the top heating device, planar heaters in which a plurality of electrotropics are arranged on a mica plate are used, respectively.
The electrotropic of the top heating device is provided at a position facing the electrotropic of the bottom heating device, respectively.
50. The heating cooker according to claim 49, wherein the size detection means is configured to turn on / off energization of the electric heating surface of the bottom surface heating device or the top surface heating device.
A plurality of each of the bottom heating device and the top heating device are provided,
The controller is
50. The cooking method according to any one of claims 46 to 49, wherein the numbers of the bottom heating device and the top heating device to be energized are changed according to a signal indicating the size of the object to be heated. vessel.
The top heating device is provided at a position facing each bottom heating device,
The size detection means is provided at a position corresponding to each bottom heating device or each top heating device,
The controller is
The heating cooker according to claim 52, wherein the numbers of the bottom heating device and the top heating device to be energized are changed according to a signal indicating the size of the object to be heated.
And a sealing member provided along the lower end of the side wall of the heating chamber,
53. The heating cooker according to any one of claims 50 to 52, wherein the sealing member is in close contact with the peripheral portion of the bottom plate when the lid is closed. .
A groove formed on the upper surface peripheral portion of the heating cooker body,
And a projection provided on the peripheral edge of the lower surface of the lid.
The heating cooker according to any one of claims 50 to 52, wherein the projection engages with the groove in a state in which the lid is closed.
A projection provided on the periphery of the upper surface of the heating cooker body;
And a groove formed along the periphery of the lower surface of the lid.
The heating cooker according to any one of claims 50 to 52, wherein the projection engages with the groove in a state in which the lid is closed.
A thickness detection device for detecting the thickness of the object to be heated;
The controller is
53. The heating according to any one of claims 46 to 52, characterized in that the electric power or the electric conduction time to the upper surface heating device is changed based on the information inputted from the thickness detection device. Cooking device.
It further comprises an operation unit operated by the user,
The heating chamber further includes a partition plate which divides the inside into at least two or more heating spaces,
The operation unit is provided so that cooking conditions can be set independently for each heating space partitioned by the partition plate.
The heating cooker according to any one of claims 46 to 52, wherein the bottom heating device and the top heating device can be controlled for each heating space.