JP5155637B2 - Induction heating vessel - Google Patents

Description

  The present invention relates to an induction heating container including an induction heating heating element in which an eddy current is induced by a high-frequency magnetic field generated by an electromagnetic induction heating coil provided in an electromagnetic cooker or the like and generates heat by its Joule heat.

  In recent years, instead of cooking appliances that have been mainly gas appliances, cooking appliances generally called electromagnetic cookers are used in the food and beverage industry in terms of safety, cleanliness, convenience, and economy. Not only for use, but also for general households.

  However, this type of electromagnetic cooker generates a high-frequency magnetic field by an electromagnetic induction heating coil provided inside, and heats an object to be heated by Joule heat generated by an induced eddy current. For this reason, while cooking can be performed without using flames, the cooking utensils that can be used are limited in principle, and special cooking utensils made of magnetic metals such as iron and iron enamel must be used. There was a disadvantage.

Under such circumstances, in order to eliminate the disadvantages of the above-described electromagnetic cooker and to provide a low-cost container that can be induction-heated by the electromagnetic cooker, for example, in Patent Document 1 and Patent Document 2, non-conductive A container for an electromagnetic cooker has been proposed in which a heating element that generates heat by induction heating is provided in the container body.
JP 7-296963 A JP 2003-111668 A

By the way, in recent years, foods have become instant, and various foods that can be eaten simply by heating in a microwave oven are frozen or refrigerated and distributed in the market. In such a distribution form, it is convenient if the packaging container can be used as a cooking container as it is, and in steamed dishes represented by Shumai, it is heated in a microwave oven so as not to impair the original flavor. Rather than heating, it is preferred to heat with steam. For this reason, if a packaging container can be utilized as a steamer as it is, it is very easy and convenient.
Furthermore, when using a packaging container as a steamer with an electromagnetic cooker, if it can automatically finish the heat treatment in the time set for each container, depending on the object to be cooked, without depending on the operation of the equipment, It is expected that the object to be cooked can be steamed and heated under appropriate conditions by preventing underheating and overheating.

The inventors of the present invention have made extensive studies from such a viewpoint, and in the above application, a heating element immersed in water is heated by induction heating, and is used as a steamer by steam generated from the heated water. I tried to do that. And in such a use mode, water is reduced with the generation of steam, a part of the heating element is exposed from the water surface, at this time, the exposed part is excessively heated, It has been found that the heating element breaks, whereby the safety mechanism of the electromagnetic cooker works to automatically end the heat treatment with steam.
However, as a result of further intensive studies, the inventors have found that there is the following problem in order to automatically end the heat treatment by breaking the heating element.

For example, if the grounding surface of the container is not horizontal, such as when the table on which the electromagnetic cooker is installed is tilted, it is not possible to uniquely determine which part of the heating element is exposed from the water surface. The part where the rupture breaks, and the break timing is not constant.
Moreover, it must be considered that the surface of the boiling water is undulating even if the predetermined portion of the heating element can be always exposed from the surface of the water. That is, if the portion exposed from the water surface is splashed with water by boiling and the heat is taken away, the timing to break may be delayed or another portion may break without leading to breakage Sometimes.
As described above, there is a problem to be solved in order to automatically end the heat treatment by the breakage of the heating element.

  The present invention has been made in view of the above circumstances, and is an induction heating container including an induction heating heating element that generates heat when an eddy current is induced by a high-frequency magnetic field, and the induction heating heating element generates heat by induction heating. It is an object of the present invention to provide an induction heating container capable of automatically ending the heat treatment for the object to be heated after the elapse of a predetermined time without performing the operation of the device when performing the heat treatment on the object to be heated. .

  An induction heating container according to the present invention includes a container main body configured to accommodate a liquid object to be heated, and an induction heating heating element that generates heat when an eddy current is induced by a high-frequency magnetic field. On the bottom surface, a plateau portion extending from the central portion toward the outer peripheral edge portion and projecting from the flat surface portion in a plateau shape is formed, and the guide follows the surface shape of the inner bottom surface including the plateau portion. A heating heating element is disposed, and the induction heating heating element is bonded along both end edges in the width direction of the plateau.

  In the induction heating container according to the present invention having such a configuration, a plateau portion protruding like a plateau is formed on the inner bottom surface of the container main body, and the induction heating heating element follows the surface shape of the inner bottom surface. When the liquid level of the object to be heated is lowered, the induction heating heating element located on the plateau is exposed, and induction is performed along both edges in the width direction of the plateau. By bonding the heating heating element, it is possible to prevent an object to be heated from entering between the plateau and the induction heating heating element. As a result, the flow of heat from the exposed part of the induction heating heating element to the object to be heated can be surely interrupted, and the exposed part generates excessive heat at a predetermined timing and breaks due to thermal melting. become. For this reason, management of the time until the induction heating heating element breaks is facilitated, and the heating process for the object to be heated can be automatically ended after a predetermined time has elapsed, regardless of the operation of the device.

  As described above, according to the present invention, it is possible to automatically end the heating process on the object to be heated after a predetermined time has elapsed, regardless of the operation of the device.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[First embodiment]
First, a first embodiment of the induction heating container according to the present invention will be described.
1A is a plan view showing an outline of the induction heating container according to the present embodiment, and each of FIGS. 1B, 2 and 3 is AA in FIG. 1A. It is sectional drawing, BB sectional drawing, and CC sectional drawing.

  The container 1 shown in each of the above figures includes a container body 2 configured to store a liquid object to be heated such as water, and an induction heating heating element 3 that generates heat when an eddy current is induced by a high-frequency magnetic field. . And the induction heating heat generating body 3 is attached to the container main body 2 so that the inner bottom face 21 of the container main body 2 may be covered as shown in the figure.

In the illustrated example, the container body 2 has an inner bottom surface 21 that is substantially circular, and the side wall portion 22 that rises from the outer peripheral edge of the inner bottom surface 21 is a rectangular opening edge. 23 is a continuous container shape. For this reason, the side wall part 22 inclines largely so that it goes to the diagonal position of the opening edge 23 (refer FIG. 2).
Here, since the container 1 is generally used by being placed on a commercially available electromagnetic cooker, the size of the inner bottom surface 21 of the container body 2 and the induction heating heating element 3 covering the inner bottom surface 21 is used. It can set according to the size of the heating coil with which the electromagnetic cooker is equipped. For example, a general heating coil included in a commercially available home-use electromagnetic cooker has an inner diameter of about 5 cm and an outer diameter of about 20 cm. The size is appropriately determined according to the electromagnetic cooker.

  Further, a stepped portion 24 is provided along the entire circumference of the inner peripheral edge of the opening edge 23 of the container body 2. The tray 24 indicated by a one-dot broken line in FIGS. 2 and 3, a lid (not shown), and the like are supported on the stepped portion 24 so as to cover the opening of the container body 2. As will be described later, the cooking object is placed on the tray 4, but in the illustrated example, a concave portion formed in the central portion of the tray 4 on the central convex portion 25 that rises in a cylindrical shape from the central portion of the container body 2. By abutting 45, the tray 4 is prevented from being bent by the weight of the cooking object.

  In addition, on the inner bottom surface 21 of the container body 2, a plateau portion 211 extending from the center portion toward the outer peripheral edge portion is formed so as to protrude from the flat surface portion 210 in a plateau shape. As shown in the figure, the plateau 211 has a side surface 211a that rises substantially perpendicularly to the flat plate 210 along the longitudinal direction (the direction in which the plateau 211 extends from the center of the inner bottom surface 21 toward the outer peripheral edge). , 211b, an upper surface 211c gently curved in an arch shape along the width direction, and end surfaces 211d and 211e located at both ends in the longitudinal direction. Usually, the height T of the side surfaces 211a and 211b is 0. It can be formed so as to have a width of 1 to 10 mm and a width W of 2 to 50 mm.

  Such a container main body 2 is made of various kinds of materials such as polystyrene resin such as polystyrene, polyester resin such as polyethylene terephthalate, polyolefin resin such as polypropylene, synthetic resin material such as polyamide resin, and paper and glass. It can be formed of a general-purpose nonmagnetic material. By forming the container body 2 with these materials, an induction heating container that can be used in an electromagnetic cooker can be provided at low cost.

  On the other hand, the induction heating heating element 3 is formed by using a conductive material that can generate heat by generating an eddy current by a high frequency magnetic field generated from an electromagnetic induction heating coil provided in an electromagnetic cooker or the like, and generating Joule heat due to its electric resistance. Is done. For example, metals such as aluminum, nickel, gold, silver, copper, platinum, iron, cobalt, tin, and zinc, or alloys thereof, or resin films and papers with conductivity are heated by induction heating using a high-frequency magnetic field. It can be formed using various conductive materials.

More specifically, for example, when aluminum is used as the metal material, the induction heating heating element 3 is preferably formed using an aluminum foil having a thickness of about 0.10 to 100 μm, more preferably about 1 to 15 μm. Can do. It is preferable to form the induction heating heating element 3 using a metal foil such as an aluminum foil. When the heating element 3 is attached to the container main body 2, the material used for the container main body 2 can be bonded by heat sealing. On the other hand, a resin layer having heat sealability can be laminated.
In addition, when attaching the induction heating heat generating body 3 to the container main body 2, you may use an adhesive tape, an adhesive agent, etc. other than heat sealing.

  In attaching the induction heating heating element 3 to the container body 2, the induction heating heating element 3 covering the inner bottom surface 21 of the container body 2 is arranged following the surface shape of the inner bottom surface 21 including the platform portion 211 (FIG. 1 ( b)). At this time, when the induction heating heating element 3 is formed using a metal foil, a crease corresponding to the shape of the plateau 211 is attached so that the arrangement on the inner bottom surface 21 is facilitated. Is preferred.

  Further, the induction heating heating element 3 is partially bonded to the container body 2 in a state of being arranged following the surface shape of the inner bottom surface 21. By partially adhering the induction heating heating element 3 to the container main body 2, an object to be heated accommodated in the container main body 2 becomes the back side of the induction heating heating element 3, that is, the container main body 2 and the induction heating heating element 3. As a result, the heating efficiency for the object to be heated can be increased, and damage to the container body 2 due to heat from the induction heating heating element 3 can be effectively avoided.

Further, when the induction heating heating element 3 is partially bonded to the container main body 2, the induction heating heating element 3 is attached to the base plate portion 211 at the bonding site 3a along each of the widthwise opposite edges of the upper surface 211c. Is adhered, and it is made non-adhesive except for the adhesion part 3a. At this time, flat portions as shown in the figure are formed on the both ends of the upper surface 211c in the width direction on the both ends of the upper surface 211c of the plateau portion 211 in the width direction both ends and in the vicinity thereof. However, the upper surface 211c of the plateau 211 may be formed so as to be continuous with the upper ends of the side surfaces 211a and 211b while being curved.
In addition, the effect by making the adhesion site | part 3a with respect to the plateau part 211 the above specific site | parts is mentioned later.

  In addition, when the induction heating heating element 3 is caused to generate heat by induction heating, a repulsive force usually acts on the induction heating heating element 3. And if the induction heating heating element 3 floats up by this repulsive force, the induction heating heating element 3 will not be induction-heated without being recognized by the pot check function of the electromagnetic cooker. . The induction heating heating element 3 is also partially bonded to the flat portion 210, and the bonding site is not particularly illustrated, but can be arbitrarily set to such an extent that the above-described disadvantage does not occur. Bonding of the induction heating heating element 3 to the flat portion 210 may be point-like partial bonding or linear partial bonding, but the bonding area is also on the back side of the induction heating heating element 3 as described above. Set in consideration of spreading the object to be heated.

  The container 1 in this embodiment as described above is used by being placed on an electromagnetic cooker. In use, for example, a predetermined amount of water is poured into the container body 2 so that the induction heating heating element 3 is immersed in the water, while the stepped portion 24 provided on the opening edge 23 of the container body 2 is applied. The tray 4 having a large number of steam holes is supported. Next, after placing the object to be cooked on the tray 4 and covering it with a lid, the electromagnetic cooking device is operated with the induction heating heating element 3 immersed in water, and the induction heating heating element 3 is heated by induction heating. Let Thereby, the water in contact with the induction heating heating element 3 is heated and boiled, and the object to be cooked can be steamed by the steam generated in the container.

As described above, the container 1 can be used as a steamer by an electromagnetic cooker simply by injecting water. However, when steam is generated in the container, the water stored in the container body 2 decreases accordingly. To do. Then, as shown in FIG. 4 (a), when the water 7 decreases and the water level is lowered to be lower than the upper surface 211c of the plateau 211, the induction heating heating element 3 located on the plateau 211 is placed on the water surface. To be exposed.
At this time, even when the grounding surface of the container 1 is not horizontal because the table on which the electromagnetic cooking device is installed is inclined, the height (side surface 211a) of the plateau portion 211 that protrudes from the flat surface portion 210 into a plateau shape , 211b can be appropriately adjusted so that the induction heating element 3 located on the plateau 211 is always exposed from the water surface first.

In the present embodiment, the upper surface 211c of the plateau 211 is curved in an arch shape. For this reason, when the water level of the water 7 is lowered, the water 7 flows down along the upper surface 211c of the plateau 211, and the water 7 is discharged from between the induction heating heating element 3 and the plateau 211. It is easy to eliminate. At this time, the upper surface 211c of the plateau 211 may be gently curved in an arch shape not only in the width direction but also in the longitudinal direction. By doing in this way, the water 7 on the plateau part 211 can be more easily excluded. Furthermore, if the upper surface 211c of the plateau 211 is a flat surface, the upper surface 211c is bent by the heat from the induction heating heating element 3 so as to be depressed downward, and the water 7 may accumulate on the upper surface 211c. Curving the upper surface 211c of the plateau 211 in an arch shape is effective in avoiding such inconvenience, and is particularly preferable when the container body 2 is formed using a synthetic resin material.
For these reasons, the degree to which the upper surface 211c of the plateau 211 is curved can be arbitrarily set to such an extent that the above effects are not hindered.

  Moreover, in this embodiment, the induction heating heat generating body 3 is adhere | attached with the adhesion | attachment site | part 3a along each of the width direction both ends edge of the upper surface 211c with respect to the base part 211. FIG. The surface of the boiling water 7 is rippling vigorously (see FIG. 4 (a)), and by making the bonding part 3a to the plateau 211 such a specific part, the splashing from the boiling water 7 It is possible to effectively avoid entering between the upper surface 211c of the plateau portion 211 and the induction heating heat generating element 3 by being transmitted through the back surface of the induction heating heat generating element 3 or the like. In order to more surely avoid such intrusion of the splash, it is preferable that the adhesion part 3a is continuously formed along both end edges in the width direction of the upper surface 211c of the plateau 211.

  As described above, when the container 1 of the present embodiment is used as a steamer, when the water level of the water 7 is lowered and becomes lower than the upper surface 211c of the plateau 211, the induction heating heating element 3 positioned on the plateau 211 is Exposed on the water surface. When the induction heating heating element 3 is exposed on the surface of the water, the induction heating heating element 3 is exposed without being deprived of heat by the water 7 remaining on the plateau 211 or the splashing water from the boiling water 7. The heat flow from the part to the water 7 can be reliably interrupted.

For this reason, as the water 7 decreases, the exposed portion of the induction heating heating element 3 generates excessive heat at a predetermined timing, and as shown in FIG. At this time, a repulsive force acts on the induction heating heating element 3 so as to rise in a direction indicated by an arrow in FIG. 4A, and tension is applied to the induction heating heating element 3, so that the induction heating heating element 3 Fracture due to thermal melting of is promoted.
When the induction heating heating element 3 is broken, the safety mechanism is activated, the electromagnetic cooker is stopped, and the boiling of the water 7 is also terminated.

  Here, in FIG. 4 (b), the fracture | rupture site | part of the induction heating heat generating body 3 is shown with the code | symbol C. FIG. As described above, when a resin layer having heat sealability is laminated on the induction heating heating element 3 with respect to the material used for the container body 2, the resin is used when the induction heating heating element 3 is broken by heat melting. The layer can also melt and give off a strange odor. For this reason, it is preferable not to remove or laminate the resin layer from the broken portion of the induction heating heating element 3 and the vicinity thereof. Furthermore, it is preferable that the resin layer does not exist in the vicinity of the fracture portion of the induction heating heating element 3 and in the vicinity thereof in order to promote the fracture by the repulsive force acting on the induction heating heating element 3.

As described above, according to the container 1 of the present embodiment, the induction heating heating element 3 can be adjusted by appropriately adjusting the amount of water injected into the container body 2 according to the time required for steaming the cooking object. By controlling the time from when the heat is generated until the induction heating heating element 3 breaks, the heat treatment can be automatically ended after a predetermined time without using the operation of the electromagnetic cooker.
As a result, the heat treatment can be automatically terminated in a set time for each container according to the contained cooking object, preventing underheating and overheating in advance, and always subjecting the cooking object to appropriate conditions. Steam and heat treatment.

[Second Embodiment]
Next, a second embodiment of the induction heating container according to the present invention will be described.
5A is a plan view showing an outline of the induction heating container according to the present embodiment, and FIG. 5B is a sectional view taken along the line DD in FIG. 5A.

  In the present embodiment, the part that is configured to generate heat excessively more selectively than the other part in the part that is located on the flat surface part 210 and the part that is located on the plateau part 211 of the induction heating heating element 3. 31 and 32 are different from the first embodiment described above in that the laying member 5 is interposed between the portions 31 and 32 and the container body 2. As a function based on these differences, the container 1 of the present embodiment has a function of induction heating heating element 3 when the electromagnetic cooker is operated and aired while forgetting to inject water 7 into the container body 2. The container body 2 is caused by the function of preventing the emptying by breaking the portion 32 located on the flat portion 210 and the heat from the portions 31 and 32 that selectively generate heat more than other portions. And a function for preventing damage.

In the present embodiment, the induction heating heating element 3 can be formed, for example, as shown in FIG.
That is, the aluminum foil 30 is punched into a track shape as shown in FIG. 6A, and rising pieces 310 and 320 are formed by the mountain fold line ML and the valley fold line VL as shown in FIG. 6B. Bend it into a circle. Next, as shown in FIG. 6 (c), the upper edge of one rising piece 310 is cut, and the cut upper edge side is cut as shown in FIG. 7 (a), (b), (c) in this order. Folding is performed in the direction of the arrow in FIG. Next, as shown in FIG. 8A, FIG. 8B, and FIG. 8C in order, the other rising piece 320 is irregularly folded, and the aluminum foil 30 is pressed and consolidated so that it overlaps in multiple layers. The laminated portion 32 is assumed.
7 shows a portion corresponding to the EE cross section of FIG. 6C, and FIG. 8 shows a portion corresponding to the FF cross section. In addition, when laminating the heat-sealable resin layer for the container body 2 to the induction heating heating element 3, considering the processing, from the site where the edge folded portion 31 and the multiple laminated portion 32 are formed and the vicinity thereof, It is preferable not to remove or laminate the resin layer.

In the example shown in FIG. 5, the induction heating heating element 3 is arranged so that the edge folding portion 31 is positioned on the plateau portion 211. The edge folding portion 31 is formed with a current path through which eddy current induced in the induction heating element 3 flows between the cut end faces 31a and 31b or in the vicinity thereof, and the resistance value at this portion. Is the maximum. For this reason, the amount of heat generated at the edge turn-up portion 31 is the largest, and the heat is selectively excessively generated. While the object to be heated is deprived of heat while immersed in the object to be heated, when it is exposed from the object to be heated, discharge occurs at or near the end faces 31a, 31b with the excessive heat generation. Then, the breakage occurs due to the fusing by the discharge, and the safety mechanism works thereby to stop the electromagnetic cooker.
In the illustrated example, the end surfaces 31a and 31b or the vicinity thereof are folded inward in consideration of the influence caused by the sparks generated by the discharge and the scattering of the fragments of the induction heating heating element 3.

  On the other hand, as shown in the figure, the multi-layered portion 32 is provided at a position on the plane portion 210 that is symmetrical to the edge turn-back portion 31 with the central concave portion 25 interposed therebetween. Similarly to the edge folding part 31, the multiple laminated part 32 also generates heat excessively more selectively than other parts, but this is because the surface of the aluminum foil 30 is folded repeatedly and fixed. It is presumed that the heat is concentrated in the region and the heat storage action between the aluminum foils 30 that are compacted and compacted.

When the edge folding part 31 and the multiple lamination part 32 are induction-heated under the same conditions, the edge folding 31 is usually more likely to be overheated, but in this embodiment, the edge folding on the plateau part 211 is performed. The folded portion 31 is located. For this reason, the edge turn-up part 31 is induction-heated in a state of being separated from the induction heating coil by the amount of the plateau part 211 raised from the flat part 21, and the heat generation amount of the edge turn-up part 31 is relatively reduced. To do.
As a result, when the air is accidentally blown, the induction heating heating element 3 is broken in the multi-layered portion 32, and the emptying of the container 1 can be prevented.

Here, the specific form of the site | part provided in the induction heating heat generating body 3 is not limited to said example so that it may heat | fever generate | occur | produce excessively more selectively than another site | part.
In this part, (1) the length from the center to the outer peripheral edge of the induction heating heating element 3 is partially shortened, and the eddy current density in this part is increased to selectively generate excessive heat. (2) Inductive heating heating element 3 is attached to a predetermined portion of a metal piece having a large electrical resistance so that the portion selectively generates excessive heat. (3) Induction heating When a part of the heating element 3 is raised and the liquid level of the object to be heated is lowered, it is exposed on the liquid level earlier than other parts so that heat is not easily taken away by the object to be heated. Thus, various forms such as those that selectively generate excessive heat can be obtained. Of these, all of the above (1) to (3) can be applied as the position on the plateau 211, and the above (1), (2) is applicable.

Further, in the example shown in FIG. 5, in order to prevent the container body 2 from being damaged by heat from the portions 31 and 32 that are selectively heated excessively as compared with other portions, the portion 31 is prevented. , 32 and the container main body 2, a laying member 5 is interposed.
As the laying member 5, various materials can be used as long as they can block the heat generated when the induction heating heating element 3 generates heat and prevent the container body 2 from being damaged by the heat from the induction heating heating element 3. Can be formed. For example, it can be formed using the same metal foil as the induction heating heating element 3. If the shape of the laying member 5 can also be interposed between the parts 31 and 32 where the induction heating heating element 3 generates excessive heat and the vicinity thereof and the container body 2, the heat from the parts 31 and 32 can be blocked. The shape is not limited to a rectangular shape as shown in the figure, and may be an arbitrary shape.

  The method of attaching the laying member 5 to the container body 2 is not particularly limited. For example, it can be made to adhere partially to the container body 2 along the periphery of the laying member 5. However, at the site where the laying member 5 is attached to the container body 2, the container body 2 and the induction heating heating element 3 are not bonded, and the induction heating heating element 3 and the laying member 5 are not bonded. To. In particular, when the laying member 5 is formed using a metal foil, an electrical connection is prevented from occurring between the induction heating heating element 3 and the laying member 5.

  5B, when the laying member 5 is attached to the upper surface 211c of the plateau 211, if the metal foil is used for the laying member 5, the laying member 5 generates heat slightly, When the induction heating heating element 3 located on the surface is exposed on the water surface, the evaporation of the water 7 remaining on the plateau 211 is promoted, and the heat flow from the exposed part of the induction heating heating element 3 to the water 7 is promoted. It is expected that can be disrupted more reliably.

  The present embodiment is different from the first embodiment in the above points, and the other configurations are the same as those in the first embodiment, and thus detailed descriptions of other configurations are omitted.

  Although the present invention has been described with reference to the preferred embodiment, it is needless to say that the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. .

For example, the inner bottom surface 21 of the container body 2 may have an arbitrary shape such as a circular shape as illustrated or a rectangular shape. In addition, the shape of the induction heating heating element 3 can also be an arbitrary shape according to the shape of the inner bottom surface 21.
Furthermore, the shape of the plateau part 211 formed so as to be raised in a plateau shape can also be an arbitrary shape as long as the effects of the present invention are not impaired. In other words, in the illustrated example, the upper surface 211c of the plateau 211 is rectangular, but for example, it can be any planar shape such as a fan shape, an elliptical shape, or a circular shape, and its cross-sectional shape ( The cross-sectional shape corresponding to the cross-section shown in FIG. 1B can also have various shapes such as a corrugated shape at the side edge from the viewpoint of suppressing the intrusion of splashes (objects to be heated).
Further, the number of the plateau portions 211 is not limited to one, and two or more may be formed as necessary.

  Moreover, in embodiment mentioned above, water was accommodated in the container main body 2 as a to-be-heated object, the container 1 was used as a steamer, and the example which steams and heat-processes a cooking target was shown, but a to-be-heated object is directly You may make it use as a heating container for heating.

  As described above, the present invention provides an induction heating container that heats an object to be heated by causing an induction heating heating element to generate heat with a commercially available electromagnetic cooker.

It is explanatory drawing which shows the outline of 1st embodiment of the induction heating container which concerns on this invention. It is BB sectional drawing of Fig.1 (a). It is CC sectional drawing of Fig.1 (a). It is explanatory drawing when an induction heating heat generating body fractures | ruptures. It is explanatory drawing which shows the outline of 2nd embodiment of the induction heating container which concerns on this invention. It is explanatory drawing which shows an example of an induction heating heat generating body. It is explanatory drawing which shows the site | part corresponded to the EE cross section of FIG.6 (c). It is explanatory drawing which shows the site | part corresponded to the FF cross section of FIG.6 (c).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 2 Container main body 21 Inner bottom face 210 Plane part 211 Platform part 211c Upper surface 3 Induction heating heating element 3a Bonding part 31 Edge folding | returning part 32 Multiple laminated part 5 Laying member

Claims (6)

A container body adapted to contain a liquid object to be heated;
An induction heating heating element that generates heat when an eddy current is induced by a high-frequency magnetic field;
With
On the inner bottom surface of the container main body, a plateau portion extending from the center portion toward the outer peripheral edge portion and protruding in a plateau shape from the flat surface portion is formed,
The induction heating heating element is arranged following the surface shape of the inner bottom surface including the plateau part, and the induction heating heating element is bonded along both edges in the width direction of the plateau part. Heating container.   The induction heating container according to claim 1, wherein the upper surface of the plateau is curved in an arch shape.   The induction heating container according to any one of claims 1 to 2, wherein the induction heating heating element is formed using a metal foil, and a crease corresponding to the shape of the plateau portion is attached.   The induction heating container according to claim 1, wherein the induction heating heating element is partially bonded to the flat portion.   A portion that is configured to selectively generate excessive heat over a portion located on the flat portion of the induction heating heating element and a portion located on the plateau portion of the induction heating heating element. The induction heating container of any one of Claims 1-4 provided.   The induction heating heating element is provided with a part that selectively generates excessive heat over other parts, and a laying member is interposed between the part that generates excessive heat and the container body. The induction heating container according to any one of claims 1 to 5.

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