JP2022076427A - Electromagnetic induction heating and microwave oven adaptable heating, heat insulation instrument and manufacturing method thereof - Google Patents

Abstract

To provide a heating/heat insulation instrument capable of heating and insulating heat for a long time with the same instrument for both an electromagnetic induction heating cooker and a microwave oven.SOLUTION: High heat resistant magnetic body material 1c is coated with heat resistant foam ceramic 1b. Latent heat storage material 1d is included in a high heat resistant resin container. A magnetic body metal 1f carrying spherical protrusions is covered by the heat resistant foam ceramic. The high heat resistant magnetic body material is heated by microwave generated from a microwave oven 1a, and the magnetic body metal carrying spherical protrusions is heated by electromagnetic induction high frequency generated from an electromagnetic induction heating cooker 1g.SELECTED DRAWING: Figure 1

Description

Detailed description of the invention

The present invention is a heating and heat retaining tool for heating using an electromagnetic induction heating cooker, a microwave oven, or both, and heating in the same container with either an electromagnetic induction heating cooker or a microwave oven. It relates to a method for manufacturing a heating and heat-retaining tool, which is characterized by being able to keep heat for a long time.

The present invention is a heating and heat retaining tool for heating using an electromagnetic induction heating cooker, a microwave oven, or both, and the latent heat storage material is a magnetic material having a high heat resistant magnetic material and spherical protrusions. By sandwiching the top and bottom with, the highly heat-resistant magnetic material and the magnetic metal supporting the spherical protrusions are covered with heat-resistant foamed ceramic or heat-insulating paint, which has slow heat, respectively, and are covered with an electromagnetic induction heating cooker or a microwave oven. In either case, the present invention relates to a method for manufacturing a heating / heat-retaining tool that can be heated in the same container and kept warm for a long time.

The present invention is a heating and heat retaining tool for heating using an electromagnetic induction heating cooker, a microwave oven, or both, and the latent heat storage material is a magnetic metal having a highly heat-resistant magnetic material and spherical protrusions. By sandwiching the top and bottom with, the highly heat-resistant magnetic material and the magnetic metal supporting the spherical protrusions are covered with heat-resistant foam ceramic or heat-insulating paint, respectively, which can be used in an electromagnetic induction cooker or a microwave oven. In either case, it is a method of manufacturing a heating / heat-retaining tool that allows heating in the same container and heat-retaining for a long time.

Conventionally, for cooking, cooking and heat insulation have been performed using an electromagnetic induction heating cooker or a microwave oven. There were utensils for each cooker, but none of them were the same utensils for both. The tools for electromagnetic induction heating were installed by baking a metal such as iron on the surface of ceramic, or built in a container. In the case of microwave ovens, foodstuffs with moisture generate heat, so the container is often simply heat-resistant, for example, heat-resistant resin. Some of the containers themselves generate heat in the microwave, but they were exclusively for microwave ovens.

For heating and heat retention in cooking, the electromagnetic induction heating cooker and the utensils using the microwave oven were dedicated containers for each. Therefore, it is necessary to prepare separate tools for the electromagnetic induction heating cooker and the microwave oven, which has a problem of inconvenience.

Therefore, if the equipment is mistaken, there is a risk of an accident. For example, if a tool made for an electromagnetic induction heating cooker is accidentally placed in a microwave oven, there is a metal material built into the tool or made on the surface to support electromagnetic induction heating. There is a problem that it is reflected by the strong microwave oven generated by the microwave oven, and the reflected energy destroys the microwave oven.

In addition, there is a danger that the powerful microwave generated by the microwave oven will be guided to the metal that acts as an antenna, generate a high voltage, and generate an electric discharge or spark.

The means by which the invention is to be solved

The present invention provides a heating and heat insulating tool for heating using an electromagnetic induction heating cooker, a microwave oven, or both. The latent heat storage material has a structure in which the upper and lower parts are sandwiched between a highly heat-resistant magnetic material and a magnetic metal carrying spherical protrusions, and the high heat-resistant magnetic material and the magnetic metal carrying spherical protrusions each have a retarding property. It has a structure covered with heat-resistant foamed ceramic or heat-insulating paint, and can be used with the same tools in either an electromagnetic induction heating cooker or a microwave oven.

In the case of a microwave oven, since there is a structure in which the latent heat storage material is covered with a heat-resistant foamed ceramic having a slow heat or a heat insulating paint, microwaves generate heat in response to the high heat-resistant magnetic material, and the heat is generated. Is kept warm by a heat-resistant foamed ceramic having a slow heat or a heat insulating paint, and can heat and keep heat of foodstuffs for a long time. On the other hand, when the same tool is hung on the electromagnetic induction heating cooker, the electromagnetic wave has a low frequency, so it does not react with the highly heat-resistant magnetic material, but reacts only with the magnetic metal carrying the spherical protrusions and heats it. be able to.

According to the present invention, the same tool can be used for both an electromagnetic induction heating cooker and a microwave oven, so that usability is improved.

In addition, when used in a microwave oven, the heating element for an electromagnetic induction heating cooker, which is composed of a highly heat-resistant magnetic material and spherical protrusions, is configured to disperse microwaves, so that electrons are reflected by microwaves. Since it does not break the range and is composed of spherical protrusions, the electric field at the edge portion is also dispersed and discharge is unlikely to occur, so that it can be used safely.

Overall structure diagram Magnetic metal supporting spherical protrusions Application Example 1 of the present invention (microwave oven) Application Example 2 of the present invention (IH cooker) Application Example 3 of the present invention (IH cooker)

FIG. 1 is an overall structural diagram of the present invention. The highly heat-resistant magnetic material is coated with heat-resistant foamed ceramic. The latent heat storage material is built in a container made of highly heat-resistant resin. The magnetic metal supporting the spherical protrusions is covered with heat-resistant foamed ceramics. The microwave generated from the microwave oven reaches the highly heat-resistant magnetic material and heats the material. The heat generated heats and keeps the latent heat storage material in close proximity. In the case of electromagnetic induction heating (IH cooker), the generated electromagnetic induction high frequency heats the magnetic metal carrying the spherical protrusions. The magnetic metal carrying the spherical protrusions generates heat rapidly by the IH cooker, but because it is covered with heat-resistant foamed ceramic, the generated heat moderately heats the latent heat storage material with a delay effect. Can keep warm.

FIG. 2 shows the details of the magnetic metal supporting the spherical protrusions. Hemispherical protrusions are formed at the edges of the magnetic metal and at the intersections of the reticulated metal, and the voltage and electric field induced by the microwave are averaged and partially formed by this spherical structure. It has a structure that prevents air discharge due to a high voltage and partial abnormally high temperature. The spherical portion is preferably a sphere, but as in the example of FIG. 2, it may be a hemispherical sphere as shown in FIG. 2 because it may be a sphere only in the direction of the microwave from the microwave oven.

FIG. 3 shows the case of application example 1 (microwave oven) of the present invention. If you use it only in the microwave, you can simplify the structure. The highly heat-resistant magnetic material is coated with heat-resistant foamed ceramic. The microwave generated from the microwave oven reaches the highly heat-resistant magnetic material and heats the material. The heat generated heats and keeps the latent heat storage material in close proximity. Since the highly heat-resistant magnetic material is covered with heat-resistant foamed ceramic, the latent heat storage material can be appropriately heated and kept warm with a delay effect.
The latent heat storage material in the heated and heat-retaining state can heat and keep the food warm for a long time.

FIG. 4 shows the case of application example 2 (IH cooker) of the present invention. When using only an electromagnetic induction heater (IH cooker), the structure can be simplified. The magnetic metal supporting the spherical protrusions is covered with heat-resistant foamed ceramics. The magnetic metal carrying the spherical protrusions is heated by the electromagnetic induction high frequency generated from the electromagnetic induction heating (IH cooker). The magnetic metal carrying the spherical protrusions generates heat rapidly by the IH cooker, but because it is covered with heat-resistant foamed ceramic, the generated heat moderately heats and retains the latent heat storage material with a delay effect. Can be done. The latent heat storage material in the heated and heat-retaining state can heat and keep the food warm for a long time.

FIG. 5 shows the case of application example 2 (IH cooker) of the present invention. The magnetic metal supporting the spherical protrusions is covered with heat-resistant foamed ceramics. The magnetic metal carrying the spherical protrusions is heated by the electromagnetic induction high frequency generated from the electromagnetic induction heating (IH cooker). The magnetic metal carrying the spherical protrusions generates heat rapidly by the IH cooker, but because it is covered with heat-resistant foamed ceramic, the heat generated with the delay effect can appropriately heat and keep the food material warm. .. Due to the large number of spherical protrusion structures, the generated heat is dispersed and transferred to the foodstuff on average, so that it can be used for cooking grilled fish as shown in the example of the figure.
Generally, in the cooking of grilled fish, the oil contained in the fish precipitates and drips down, and smoke due to the combustion of oil becomes a problem. It can be easily stored in tableware.

For the highly heat-resistant resin of the present invention, for example, biomass plastic or cellulose nanofiber material can be used in consideration of the influence on the environment.

The magnetic metal supporting the spherical protrusions of the present invention is manufactured by spraying a wire mesh with a metal such as alumina to improve the efficiency of electromagnetic induction heating, and further to apply a hollow ceramic paint to slow heat and heat. Needless to say, the heat retention effect can be enhanced by the property of being hard to cool.

As a manufacturing method, the magnetic metal supporting the spherical protrusions of the present invention may be sprayed with alumina metal and coated with a hollow ceramic paint on a fine wire wire, and the shape can be tremed by breathing with a mold before or after coating. It can also be used to produce fine hemispherical protrusions, and by providing protrusions to cover the entire surface and the fractured edge created by treming, it also has the effect of avoiding concentration of current. Needless to say.

In the description of the present invention, it is explained that the latent heat storage material is installed adjacent to the heat generating portion to have a long-term heat retention effect. However, when a long-time heat retention time is not required, the latent heat storage material is provided. Needless to say, the wood can be omitted.

The invention's effect

According to the present invention, since the magnetic metal that reacts with the electromagnetic induction heating cooker has a structure in which spherical protrusions are supported, it is not affected by the microwave of the microwave oven. A heating and heat retaining tool that can handle both is possible. In addition, since magnetic metal is unlikely to induce high voltage due to microwaves or discharge into the air, it can be safely used as it is even when used in a microwave oven. Further, unlike a metal plate, there is no risk of damaging the microwave oven body due to the reflection of microwaves and the energy thereof, and there is an advantage that the microwave oven can be used safely.

According to the present invention, since it can be used for both an electromagnetic induction heating cooker and a microwave oven, this tool is used as a unit in various porcelain dishes and heat-resistant plastic tableware, or is built in a plate hill. Since tableware with a removable structure can be easily configured, there is an advantage that various types of tableware for heating and heat retention can be easily realized. Since the number of types of tools can be reduced, the effect of mass production can be expected, and the above tableware can be realized at low cost.

According to the present invention, since it has a magnetic metal supporting spherical protrusions, as shown in FIG. 5, it is possible to heat and keep heat of foodstuffs such as fish and roasted meat while easily removing oil and fat components. There is an advantage that it can be safely done even if an electromagnetic induction heating cooker is used.

According to the present invention, in the case of a microwave oven, a highly heat-resistant magnetic material is heated, and in the case of an electromagnetic induction heater, a magnetic material metal carrying a spherical protrusion is heated, and latent heat installed adjacent to the microwave oven is heated. Since the heat storage material can be heated, there is an advantage that not only cooking but also heat retention for a long time becomes possible. In addition, since it uses a latent heat storage material, once it is heated, it does not require power supply and can keep warm for a long time, which is very effective in saving energy.

According to the present invention, the heat-resistant magnetic material as a heating element and the magnetic material metal supporting the spherical protrusions are covered with the heat-resistant foamed ceramic, and the heat-resistant foamed ceramic has a slow heat effect. Therefore, a latent heat storage material is used. It has the effect of preventing rapid heating, can prevent deterioration of the latent heat storage material, and can be used for a long period of time.

Possibility of industrial use

According to the present invention, even in large eating and drinking establishments, food courts, restaurants, inns, hotels, aircraft, ships, in-train dining rooms, hospitals, school lunches, the military, and general households, microwave ovens and electromagnetic induction cookers (IH cookers) ), It is possible to create a tool that can heat in a short time and maintain the temperature for a long time. By making this tool a cartridge structure, it can be built into various tableware, and tableware of various sizes, structures, and designs can be heated and kept warm for a long time.

1a ... Microwave oven (microwave generator)
1b ... Heat-resistant foam ceramic 1c ... High heat-resistant magnetic material 1d ... Latent heat storage material 1f ... Magnetic metal with spherical protrusions 1g ... Electromagnetic induction heater (IH cooker)
1h ... Whole tool 2a ... Spherical protrusion 2b ... Spherical protrusion enlarged view 2c ... Semicircular sphere 3a ... Foodstuff to be heated and kept warm 3b ... Tableware 5a ... Heating , Examples of foodstuffs to be kept warm (fish, etc.)
5b ... Oil pan

Claims (4)

A heating and heat retaining tool for heating using an electromagnetic induction heating cooker, a microwave oven, or both, and a structure in which a latent heat storage material is sandwiched between a highly heat-resistant magnetic material and a magnetic metal supporting spherical protrusions. The highly heat-resistant magnetic material and the magnetic metal supporting the spherical protrusions each have a structure covered with a heat-resistant foamed ceramic having a slow heating property or a heat insulating paint, and have an electromagnetic induction heating cooker or a microwave oven. A method for manufacturing heating and heat-retaining tools, which is characterized by being able to heat in the same container and keep it warm for a long time. It is a heating and heat retaining tool for heating using an electromagnetic induction heating cooker, a microwave oven, or both, and has a structure composed of a highly heat-resistant magnetic material and a magnetic metal supporting spherical protrusions. Further, the highly heat-resistant magnetic material and the magnetic metal supporting the spherical protrusions each have a structure covered with a heat-resistant foamed ceramic having a slow heating property or a heat insulating paint, and can be used with either an electromagnetic induction cooking cooker or a microwave oven. A method for manufacturing cooking and heat-retaining tools for foodstuffs, which is characterized by being able to heat in the same container. It is a heating and heat retaining tool for heating using an electromagnetic induction heating cooker, and has a structure in which a magnetic metal having spherical protrusions is laid on or under a latent heat storage material, and further, a lattice spherical magnetic metal. Has a structure covered with heat-resistant foamed ceramic with slow heat or heat insulating paint, and is characterized by uniform heating and long-term heat retention by an electromagnetic induction heating cooker. Production method. A heating and heat-retaining tool for heating using an electromagnetic induction heating cooker, which has a structure in which a magnetic metal having spherical protrusions is laid under the food material, and a magnetic metal having spherical protrusions is further used. It has a structure covered with heat-resistant foamed ceramic with slow heat or heat insulating paint, and is configured so that the fats and oils of the food fall from between the grids, and the food is heated uniformly and efficiently by the electromagnetic induction cooking cooker. A method for manufacturing, heating, and heat-retaining tools for foodstuffs, which is characterized by being able to drop and remove the fats and oils of foodstuffs.

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