JP2008159393A - Heating auxiliary plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating auxiliary plate capable of heating even a cooking appliance or other appliance and container that is not adaptive to an electromagnetic cooking appliance, by utilizing it. <P>SOLUTION: A heating auxiliary plate 1 comprises a plate body 2 molded with aluminum or aluminum alloy, and a metal plate 4 of magnetic body which is inserted when molding into the plate body 2. Relating to the heating auxiliary plate 1, the side of its upper surface 1a is provided with a flat placement surface 1b on which a container U which is a heated appliance is placed, and at least a part of one surface 4a side of the metal plate 4 is exposed on a lower surface 1c side. The heating auxiliary plate 1 is interposed between a top plate P of the electromagnetic cooking appliance and the container U which is a heated appliance, thereby assisting heating of the container U, which is a heated appliance, by the electromagnetic cooking appliance. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a heating auxiliary plate for assisting heating of a heated appliance / container by an electromagnetic cooker.

  Conventionally, there has been a cooking utensil compatible with an electromagnetic cooker that is used for cooking with an electromagnetic cooker (see, for example, Patent Document 1). This cooking utensil is made of aluminum or aluminum alloy, and a metal plate made of a magnetic material embedded in the bottom of the cooking utensil main body so as to be exposed on the outer surface side of the bottom of the cooking utensil main body. And had. And when this cooking utensil is mounted on the top plate portion of the electromagnetic cooking device, the metal plate generates heat under the influence of the magnetic lines generated from the electromagnetic cooking device, and the cooking utensil body is heated by the generated heat. .

Japanese Patent No. 3592670

  Thus, in order to cook with an electromagnetic cooker, you must use the cooking utensils that are compatible with the electromagnetic cooker as described above, such as ordinary earthenware pans or heat-resistant glass pans. Of course, the cookware could not be used. The present invention has been made in order to solve the above-described conventional problems, and the object of the present invention is to provide an electromagnetic device that is not compatible with an electromagnetic cooker or other heated appliances / containers. An object of the present invention is to provide a heating auxiliary plate that can be heated using a cooking device.

The heating auxiliary plate according to the present invention has the following configuration in order to achieve the object. That is,
The heating auxiliary plate according to the first aspect of the present invention includes a plate main body cast from aluminum or an aluminum alloy, and a metal plate made of a magnetic material that is inserted into the plate main body during the casting. Moreover, it has a flat mounting surface in which a to-be-heated tool and a container are mounted in an upper surface side. Further, at least a part of one surface side of the metal plate is exposed on the lower surface side. The auxiliary heating plate is interposed between the top plate portion of the electromagnetic cooker and the heated appliance / container to assist heating of the heated appliance / container by the electromagnetic cooker. To do.

  When this heating auxiliary plate is placed on the top plate of the electromagnetic cooker, eddy current flows through the metal plate under the influence of the magnetic lines generated from the electromagnetic cooker, the metal plate generates heat, The plate body is heated. And heat is transmitted from the plate main body to the heated apparatus / container by placing the heated apparatus / container on the mounting surface. In this way, even a heated appliance / container that is not compatible with an electromagnetic cooker (for example, an earthen pot or a heat-resistant glass pot / pot) can be heated using an electromagnetic cooker.

  Moreover, the heating auxiliary plate which concerns on invention of Claim 2 is the heating auxiliary plate of Claim 1, Comprising: The said plate main body is formed in flat plate shape of planar view circle. And the one surface side of the said metal plate is exposed over the substantially whole area of the said lower surface side. By doing so, the circular plate body is heated throughout.

  Moreover, the heating auxiliary plate according to the invention described in claim 3 is the heating auxiliary plate according to claim 1 or 2, wherein at least the mounting surface has a heat-resistant resin film having an appropriate cushioning property. Is formed. By doing so, the placement surface is in close contact with the heated appliance / container placed on the placement surface, and the thermal conductivity from the plate main body to the heated appliance / container is improved.

  According to a fourth aspect of the present invention, there is provided a heating auxiliary plate according to any one of the first to third aspects, wherein the plate body is provided with a handle. By doing so, even if the heating auxiliary plate is heated, the handle can be grasped and carried, which is convenient.

  Moreover, the heating auxiliary plate which concerns on invention of Claim 5 is a heating auxiliary plate of any one of Claim 1 thru | or 4, Comprising: The said metal plate engages with the said plate main body, and there are several. The engaging hole portion is provided. And the one surface of the said metal plate and the lower surface of the said plate main body exposed so that it may pass through each engagement hole part of the said metal plate may continue on the flat surface which became the same surface.

  According to this heating auxiliary plate, the plate main body and the metal plate are firmly fixed by engaging with each other through the engaging hole portions. In addition, the plate body is efficiently heated by the fact that one surface of the metal plate and the lower surface of the plate body are continuous on a flat surface.

  Further, the heating auxiliary plate according to the invention described in claim 6 is the heating auxiliary plate according to claim 5, wherein the plurality of engagement holes are recessed from one surface side of the metal plate, and the other surface. A concave protrusion protruding to the side, and an opening that opens the concave protrusion in a direction perpendicular to the thickness direction of the metal plate. And some or all of the plurality of engaging hole portions are open in the circumferential direction centering on the central portion of the plate body, and the opening portion is in a direction orthogonal to the thickness direction of the metal plate. At the same time, the concave protrusions cross so as to be substantially aligned in a direction toward the center of the plate body.

  According to this heating auxiliary plate, when the metal plate is inserted and the plate body is cast, the molten aluminum or aluminum alloy passes through the openings of the plurality of engagement holes and into the concave protrusions. Flows in. Each of the concave projections is sandwiched between the molten aluminum or aluminum alloy that has flowed into the inside thereof and the molten aluminum or aluminum alloy that surrounds the concave projections on the outside thereof. Embedded in the plate body. Therefore, the plate body and the metal plate are more firmly fixed.

  In addition, in some types of electromagnetic cookers, a heating coil that generates lines of magnetic force is disposed so as to be wound in a spiral shape in a plan view, for example. When such a heating auxiliary plate is placed in such an electromagnetic cooker so that the central portion of the plate body is located directly above the central portion of the heating coil wound in a spiral shape, the direction of the lines of magnetic force is Since the concave projections that are passed so as to be substantially aligned in the direction toward the center of the plate main body are in a direction substantially along the transition direction, the magnetic force lines are efficiently applied to the metal plate via the concave projections. It is possible to pass through. Therefore, the plate body is heated more efficiently.

  According to the heating auxiliary plate according to the present invention, by placing the plate so as to be interposed between the top plate portion of the electromagnetic cooker and the heated appliance / container, the heated appliance not compatible with the electromagnetic cooker. Even a container can be heated using an electromagnetic cooker.

  Hereinafter, an embodiment of a heating auxiliary plate according to the present invention will be described with reference to the drawings.

  1 to 6 show an embodiment of a heating auxiliary plate according to the present invention. Reference numeral 1 in the figure denotes a heating auxiliary plate. P is a top plate part (top plate) of the electromagnetic cooker. U is a heated appliance / container (heated appliance or heated container) that cannot be directly heated by an electromagnetic cooker and is not compatible with an electromagnetic cooker.

  The heating auxiliary plate 1 includes a plate body 2 cast from aluminum or an aluminum alloy (hereinafter referred to as aluminum), and a metal plate 4 made of a magnetic material that is inserted into the plate body 2 during the casting. . Moreover, the upper surface 1a side is provided with the flat mounting surface 1b in which the said to-be-heated instrument and container U are mounted. Further, at least a part of the one surface 4a side of the metal plate 4 is exposed on the lower surface 1c side. And this heating auxiliary | assistant plate 1 is placed so that it may interpose between the top-plate part P of the said electromagnetic cooker, and the said to-be-heated appliance and container U, The said to-be-heated appliance and container by the said electromagnetic cooker Assist in heating U.

  Specifically, the plate body 2 is formed in a flat plate shape that is circular in plan view (see FIG. 1). And the one surface 4a side of the metal plate 4 is exposed over substantially the whole area of the lower surface 1c side (specifically, the lower surface 2c of the plate body 2). Further, an outer peripheral groove 2d is provided at a position near the outer periphery of the lower surface 2c of the plate body 2 over the entire periphery. Further, on the outer side of the outer peripheral groove 2d, there are provided projecting portions T (three projecting portions T and T arranged at equal intervals in the illustrated embodiment) that slightly protrude below the lower surface 2c. Yes. Thereby, when the heating auxiliary plate 1 is placed on the top plate portion P of the electromagnetic cooker, the lower surface 2c of the plate body 2 and the top plate portion P are not in contact with each other (see FIG. 4). In addition, although the height dimension of these protrusion parts T and T has the preferable height of 1-2 millimeters, it is not limited to this.

  Further, the entire upper surface 2a of the plate body 2 is formed flat. In the illustrated embodiment, the entire upper surface 2a is the mounting surface 1b (see FIGS. 2 to 4). In addition, the mounting surface 1b (the upper surface 2a of the plate body 2) and the side surface 2b of the plate body 2 are coated with, for example, a urethane-based synthetic resin paint, thereby providing a heat-resistant resin film having appropriate cushioning properties. C is formed (see FIG. 3). Further, one or a plurality of (in the illustrated embodiment, one) handles 3 are provided on the side surface 2b of the plate body 2.

  Further, the metal plate 4 made of a magnetic material is a metal plate having a substantially circular shape in a plan view made of, for example, ferritic stainless steel (such as SUS430 or SUS434) (see FIGS. 5 and 6). The metal plate 4 has a plurality of engagement holes 5 and 5 that engage with the plate main body 2 over substantially the entire area thereof. Then, the flat surface in which the one surface 4a of the metal plate 4 and the lower surfaces 2c and 2c of the plate body 2 exposed so as to pass through the engagement holes 5 and 5 of the metal plate 4 are flush with each other. Are continuous (see FIGS. 2 and 3). Further, the outer peripheral edge 4 c of the metal plate 4 is embedded in the plate main body 2, and is engaged with the plate main body 2 together with the engagement holes 5 and 5.

  In the illustrated embodiment, as shown in FIG. 5, the engagement hole portions 5, 5 groups arranged in a ring are arranged in a plurality of rows (specifically, six rows) in a concentric manner, whereby the engagement holes The parts 5 and 5 are provided over substantially the entire area of the metal plate 4. Further, the plurality of engaging hole portions 5 and 5 are recessed from the one surface 4 a side of the metal plate 4, and the concave projections 6 and 6 projecting to the other surface 4 b side, and the concave projections 6 and 6, Openings 7 and 7 that open in a direction orthogonal to the thickness direction of the plate 4 are provided. Specifically, the concave protrusion 6 has a rectangular shape in plan view, is recessed in a vertical cross-sectional trapezoidal shape so as to become narrower as it moves away from the one surface 4a side of the metal plate 4, and protrudes toward the other surface 4b side. The openings 7 and 7 open in the direction orthogonal to the thickness direction of the metal plate 4 (see FIGS. 5 and 6). Further, a part of the plurality of engaging hole portions 5 and 5 (specifically, the engaging hole portions 5 and 5 groups are formed from the center to five rows in six concentrically arranged rows. The engagement hole portions 5, 5) have two opening portions 7, 7 that open in a direction perpendicular to the thickness direction of the metal plate 4 and in a circumferential direction centered on the central portion 2 e of the plate body 2. At the same time, most of the concave protrusions 6 cross over in a direction toward the center portion 2e of the plate body 2 (which is also the same direction as the longitudinal direction of the engagement hole portion 5). Further, the other engagement hole portions 5 and 5 (the engagement hole portions 5 and 5 forming the outermost row of the engagement hole portions 5 and 5 groups, which are arranged in six concentric circles), The two openings 7 and 7 are open in a direction orthogonal to the thickness direction of the metal plate 4 and in a direction toward the central portion 2e of the plate body 2 (or the opposite direction), and a concave shape. The protrusions 6 are arranged in the circumferential direction with the central portion 2e of the plate body 2 as the center. Further, the metal plate 4 is provided with a through-hole K having a circular shape in a plan view, for example, which penetrates in the thickness direction and is disposed in the central portion 2e of the plate body 2. The size of the through portion K is preferably, for example, in the range of 20 mm to 40 mm in diameter, but is not limited to the numerical value.

  Here, this heating auxiliary plate 1 is manufactured by the following manufacturing method, for example. First, the plate body 2 is cast by inserting the metal plate 4 made of a magnetic material. That is, when the metal plate 4 made of a magnetic material is placed on a mold (not shown) that can be adsorbed and fixed by magnetic force, and molten aluminum is poured into the mold, the molten aluminum is moved into the engagement hole 5. Through the two openings 7, 7 into the concave projection 6. Thus, when the molten aluminum flows into the concave projection 6, the concave projection 6 surrounds the molten aluminum that has flowed into the inside and the concave projection 6 at the outside. It is embedded in the plate body 2 so as to be sandwiched between molten aluminum. Moreover, the melt | dissolved aluminum flows into the said penetration part K, and the center part 2e of the plate main body 2 is comprised only with aluminum.

  Next, the effect of the heating auxiliary plate 1 having the above configuration will be described. A heating coil is disposed inside the electromagnetic cooker so as to be wound in a spiral shape in a plan view. The heating auxiliary plate 1 is placed on the top plate portion P of the electromagnetic cooker so that the central portion 2e of the plate body 2 is positioned directly above the central portion of the heating coil wound in a spiral shape. When an alternating current is passed through the heating coil, lines of magnetic force are generated around the heating coil. Under the influence of the magnetic lines of force, an eddy current flows through the metal plate 4, the metal plate 4 generates heat, and the plate body 2 is heated by the generated heat. And heat is transmitted from the plate main body 2 to the to-be-heated instrument and container U by mounting the to-be-heated instrument and container U on the mounting surface 1b (refer FIG. 4). In this way, by heating the heated utensil / container U via the auxiliary heating plate 1, the heated utensil / container U incompatible with the electromagnetic cooker (for example, a cooking utensil such as an earthen pan or a heat-resistant glass pan, Even a heat-resistant glass beaker, pot, or other container made of a material that does not easily generate heat due to magnetic lines of force can be heated using an electromagnetic cooker.

  Further, the surface 4a side of the metal plate 4 is exposed over substantially the entire lower surface 2c of the plate body 2 that is formed in a flat plate shape that is circular in plan view. Over heated.

  In addition, since a heat-resistant resin film having an appropriate cushioning property is formed on the placement surface 1b by a urethane-based synthetic resin paint, the placement surface 1b and the heated appliance / container U are The heat conductivity from the plate body 2 to the heated appliance / container U is improved.

  In addition, since the handle 3 is provided on the side surface 2b of the plate body 2, the handle 3 can be held and carried even when the heating auxiliary plate 1 is heated, which is convenient.

  Further, the plate body 2 and the metal plate 4 are firmly fixed by being engaged at the respective engagement hole portions 5 and 5. Moreover, the plate body 2 is efficiently heated by the one surface 4a of the metal plate 4 and the lower surfaces 2c and 2c of the plate body 2 being continuous on a flat surface.

  Further, when the plate body 2 is cast by inserting the metal plate 4, the molten aluminum passes through the openings 7, 7 of the plurality of engagement holes 5, 5 of the metal plate 4, and each concave protrusion. By flowing into the portions 6 and 6, the respective concave projections 6 and 6 are melted into the melted aluminum, and the melted aluminum that surrounds the concave projections 6 and 6 outside the melted aluminum. It is embedded in the plate body 2 so as to be sandwiched between aluminum. Therefore, the plate body 2 and the metal plate 4 are more firmly fixed.

  In addition, the direction of the lines of magnetic force generated around the heating coil wound in a spiral shape in a plan view is such that the concave protrusions 6 and 6 passed so as to be substantially aligned in the direction toward the central portion 2e of the plate body 2. It becomes a direction substantially along the crossing direction, and it becomes possible to efficiently pass magnetic lines of force through the metal plate 4 made of a magnetic material via the concave protrusions 6 and 6. Therefore, the plate body 2 can be heated more efficiently.

  In addition, this invention is not necessarily limited to embodiment mentioned above, A various other change is possible. For example, the plate body 2 may not be formed in a circular shape in plan view but may be formed in another shape such as a rectangle or an ellipse. Further, the entire upper surface 2a of the plate body 2 may not be the mounting surface 1b.

  Further, the number of protrusions T provided outside the outer circumferential groove 2d is not limited to three, but may be two, or four or more, or it is continuous in a ring shape in plan view along the outer circumferential groove 2d. The protrusion part T formed so that it may be sufficient.

  The metal plate 4 made of a magnetic material is not limited to one made of ferritic stainless steel, and may be a metal plate made of iron, an iron alloy, or other magnetic stainless steel.

  Further, the plurality of engaging hole portions 5 and 5 are recessed from the one surface 4 a side of the metal plate 4, and the concave projections 6 and 6 projecting to the other surface 4 b side, and the concave projections 6 and 6, The opening portions 7 and 7 that open in a direction orthogonal to the thickness direction of the plate 4 may not be provided. For example, the plurality of engagement hole portions 5 and 5 are separated from the one surface 4 a side of the metal plate 4. The hole body is formed to have a small diameter and protrudes to the other surface 4b side, and the tip side protruding to the other surface 4b side penetrates in the thickness direction of the metal plate 4 so that the plate body 2 and the metal plate 4 However, the structure and shape of the engagement hole portions 5 and 5 are not limited to a specific structure and shape, for example, the engagement hole portions 5 and 5 may be engaged with each other.

  Further, the plurality of engagement hole portions 5 and 5 do not have to be arranged as shown in FIG. 5. For example, the plurality of engagement hole portions 5 and 5 have two openings 7 and 7 in their entirety. However, you may open in the circumferential direction centering on the center part 2e of the plate main body 2 in the direction orthogonal to the thickness direction of the metal plate 4.

It is a bottom view of a heating auxiliary plate of one embodiment of this invention. Similarly, it is the longitudinal cross-sectional view by the LL line in FIG. Similarly, it is a partial enlarged vertical sectional view in FIG. Similarly, FIG. 2 is a view corresponding to FIG. 2 when the auxiliary heating plate is placed so as to be interposed between the top plate portion of the electromagnetic cooker and the heated appliance / container. Similarly, it is a bottom view of a metal plate. Similarly, it is FIG. 3 equivalent drawing of only a metal plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating auxiliary plate 1a Upper surface of heating auxiliary plate 1b Mounting surface 1c Lower surface of heating auxiliary plate 2 Plate main body 2c Lower surface of plate main body 2e Center part of plate main body 3 Handle 4 Metal plate 4a One side of metal plate 4b Other side of metal plate 5 Engaging hole 6 Recessed projection 7 Opening C Heat-resistant resin coating P Top plate of electromagnetic cooker U Heated appliance / container

Claims (6)

A heating auxiliary plate comprising a plate body cast from aluminum or an aluminum alloy, and a metal plate made of a magnetic material inserted into the plate body during the casting,
On the upper surface side, there is a flat mounting surface on which the heated appliance / container is mounted,
On the lower surface side, at least a part of one surface side of the metal plate is exposed,
A heating auxiliary plate that assists heating of the heated appliance / container by the electromagnetic cooker by being interposed between the top plate portion of the electromagnetic cooker and the heated appliance / container. The plate body is formed in a circular flat plate shape in plan view,
2. The heating auxiliary plate according to claim 1, wherein one surface side of the metal plate is exposed over substantially the entire area of the lower surface side.   The heating auxiliary plate according to claim 1 or 2, wherein a heat-resistant resin film having an appropriate cushioning property is formed on at least the placement surface.   The heating auxiliary plate according to any one of claims 1 to 3, wherein a handle is provided in the plate body. The metal plate has a plurality of engagement holes that engage with the plate body,
One surface of the metal plate and the lower surface of the plate main body exposed so as to pass through the engagement holes of the metal plate are continuous with a flat surface that is flush with each other. The heating auxiliary plate according to any one of claims 1 to 4. The plurality of engaging hole portions are recessed from one surface side of the metal plate and project to the other surface side, and the recessed protrusion portions are opened in a direction perpendicular to the thickness direction of the metal plate. With an opening,
A part or all of the plurality of engagement holes are such that the opening is open in a direction perpendicular to the thickness direction of the metal plate and in the circumferential direction centered on the center of the plate body. The heating auxiliary plate according to claim 5, wherein the concave protrusions extend so as to be substantially aligned in a direction toward the center of the plate body.

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