JP2007068940A - Vacuum heating/heat insulation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a conventional vacuum bottle cannot boil water directly and has troublesomeness, inconvenience and a risk of scald by hot water at exchange of hot water or the like, and to save electric power of an electric pot or the like that is extravagant in electric power due to heat insulation. <P>SOLUTION: The vacuum heating/heat insulation apparatus 1 provided with a cover comprises an inner layer 2, an outer layer 3 and a vacuumized space 4 provided between the inner layer 2 and the outer layer 3. A heatable load 5 is brought into close contact with and attached to the bottom of the outer face of the inner layer 2 facing the vacuum space 4. A plurality of power supply terminals 7 are provided on the outer layer 3. The load 5 and the terminals 7 are electrically connected. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  In a two-layer container comprising an inner layer 2 and an outer layer 3 having a lid, a space 4 between the two layers is evacuated and inside the inner layer 2 or the inner side of the inner layer 2 in the vacuum facing the space 4 The present invention relates to a vacuum heating incubator 1 in which a vessel 10 is heated to boil hot water, boiled food, boiled water inside the inner layer 2 or boiled food is kept warm inside the inner layer 2 as it is. .

  Traditionally speaking, a container that can keep hot water, etc. for a long time, the space between the inner and outer two layers, called a thermos, is a container with a vacuum lid. When hot water is kept warm, boil the water in a separate container and boil it. Transfer the hot water to the heat insulation container. Since it is not possible to boil hot water directly in a heat insulating container, if the water temperature falls, the cooled water is discharged from the heat insulating container, boiled again in another container, and again replaced with a heat insulating container. There are disadvantages such as inconvenience that takes a lot of time and direct boiling of water, and there is a risk of burns from hot water when replacing hot water.

  In addition, the space between the inner and outer two layers is vacuum only on the side of the container, and the bottom is a single-layer electric pot that heats the bottom with an electric heating element to boil hot water, but the bottom of the container is a single-layer Therefore, as soon as the power is turned off, the hot water begins to cool from the bottom of the container.

  In order not to cool down, wasteful power is wasted, such as supplying warming power from an indoor outlet at all times to keep hot water or the like warm.

Problems to be solved by the invention

As described above, the conventional thermos bottle has a risk of not boiling water directly, trouble and inconvenience when replacing hot water, and an accident causing burns caused by hot water. Moreover, an electric pot etc. wastes electric power in order to keep warm. Therefore, it eliminates the trouble and inconvenience of conventional thermos bottles, eliminates the danger of accidents causing burns due to hot water, and saves electric power in electric pots and the like.

Means for solving the problem

As a heatable load 5 on the bottom of the outer surface of the inner layer 2 facing the vacuum space 4, the vacuum heating incubator 1 having a lid composed of the inner layer 2 and the outer layer 3, in which the space 4 between the inner and outer layers is evacuated. An electric heating element (hereinafter referred to as a load 5) or an electromagnetic induction heating coil (hereinafter referred to as a load 5) is attached in close contact, a plurality of power terminals 7 are provided on the outer layer 3, and the load 5 and the power terminals 7 are connected to each other. Install with electrical connection.

When a power cord with a plug is connected to the power terminal and the plug is inserted into an electrical outlet, a current flows through the load 5 and the load 5 generates heat to heat the bottom of the outer surface of the inner layer 2.

Alternatively, when a high-frequency current output terminal is connected to the power supply terminal from a high-frequency power supply and a high-frequency current is output to the power supply terminal, a high-frequency current flows through the load 5 to generate an alternating magnetic field. An eddy current flows due to the magnetic field, and this eddy current acts on the resistance of the outer surface bottom portion of the inner layer 2 to heat and heat the outer surface bottom portion of the inner layer 2 itself.

Further, a plurality of relay terminals 8a having contacts are attached to the outer surface of the inner layer 2, and electrically connected to the load 5, and a magnetically operated relay terminal 8 having contacts is provided on the inner surface of the outer layer 3. Provided and electrically connected to the power supply terminal 7, the electromagnet coil 9 is provided on the inner surface or the outer surface of the outer layer 3, and is electrically connected to the power supply terminal 7.

When a power cord with a plug is connected to the power terminal 7 and the plug is inserted into an electrical outlet, an exciting current flows through the electromagnet coil 9, the relay terminal 8 is magnetically operated, and the contact of the relay terminal 8a on the outer surface of the inner layer 2 , A current flows through the load 5 and the load 5 generates heat, and the bottom of the outer surface of the inner layer 2 is heated.

Alternatively, when a high-frequency current output terminal is connected to the power supply terminal 7 from a high-frequency power source and a high-frequency current is output to the power supply terminal 7, an excitation current flows through the electromagnet coil 9, and the relay terminal 8 is magnetically operated. The contact of the relay terminal 8a on the outer surface of the inner layer 2 is contacted, a high-frequency current flows through the load 5 to generate an alternating magnetic field, and an eddy current flows at the outer surface bottom of the inner layer 2 due to the alternating magnetic field. The outer surface bottom of the inner layer 2 itself generates heat and is heated.

When the set temperature of the temperature sensor 6 is reached, the current flowing through the load 5 is cut off, and the heat generation and heating at the bottom of the outer surface of the inner layer 2 are also stopped.

Hereinafter, various embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a first embodiment of the present invention.

In the vacuum heating incubator 1 with the lid, the inner layer 2 and the outer layer 3 composed of the inner layer 2 and the outer layer 3 are made of metal, the space 4 between the inner and outer layers is evacuated, and the vacuum space 4 An electric heating element (hereinafter referred to as a load 5) is attached in close contact with the bottom of the outer surface of the inner layer 2 facing the substrate, and a temperature sensor 6 is provided at the bottom of the outer surface of the inner layer 2. The load 5 and the temperature sensor 6 are electrically connected and electrically connected to the power supply terminal 7. Put 2.2 L of water into the inside of the inner layer 2.

Next, the operation will be described.
When a power cord with a plug is connected to a power terminal and the plug is inserted into an electrical outlet, a current flows through the load 5 and the load 5 generates heat to heat the bottom of the outer surface of the inner layer 2. Heating is performed up to the heating set temperature of the temperature sensor 6.

Since the load 5 is attached in close contact with the bottom of the outer surface of the inner layer 2 and is integrated with the bottom of the bottom of the outer surface of the inner layer 2, a normal heating and heating effect can be generated even when the space 4 is vacuum.

  When the set temperature of the temperature sensor 6 is reached, the current flowing through the load 5 is cut off, the heat generation of the load 5 stops, and the heating of the bottom of the outer surface of the inner layer 2 also stops.

  When the temperature at the bottom of the outer surface of the inner layer 2 decreases and reaches the heating set temperature of the temperature sensor 6, the load 5 is energized, the load 5 generates heat again, and the bottom of the outer surface of the inner layer 2 is heated again.

As described above, the bottom of the outer surface of the inner layer 2 is heated. As heating conditions, room temperature 25 ° C., water temperature 22 ° C., commercial power supply AC 100 V, load 700 W, and put inside the inner layer 2. 2.2 L of water boiled in 18 minutes. It is also possible to make boiled dishes such as vegetables, meat and fish, and to cook rice. Since it is possible to keep the heat for a long time because of the vacuum heating incubator with two layers inside and outside, it is economical because the heat holding power is reduced.

When the water has cooled, it can be boiled again, eliminating the inconvenience of re-boiling the water in a separate container or replacing it with a separate container. This eliminates the risk of accidental burns caused by hot water. In this way, inconveniences and drawbacks, economic waste, and the risk of accidents are eliminated.
As an example of the vacuum heating incubator of the present invention, an electric pot, an electric rice cooker, an electric pan, a towel towel, a warm warehouse, and the like are suitable.

FIG. 2 shows a second embodiment of the present invention.
The material of the inner layer 2 and the outer layer 3 in FIG. 2 is made of synthetic resin, a metal inner container 10 that can be taken in and out from the inner layer 2 is provided inside the inner layer 2, and a heatable load 5 is provided on the outer surface bottom of the inner layer 2. As described above, an electromagnetic induction heating coil (hereinafter referred to as a load 5) is provided, a temperature sensor 6 is provided on the bottom of the outer surface of the inner layer 2, and two relay terminals 8a are provided on the outer surface of the inner layer 2. The two relay terminals 8a have contacts. The two relay terminals 8 a are electrically connected to the load 5 and the temperature sensor 6. An electromagnetic relay incorporating two magnetically operated relay terminals 8 and an electromagnetic coil 9 is provided on the inner surface of the outer layer 3, and two power supply terminals 7 are provided on the outer layer 3. The electromagnet coil 9 is electrically connected to the power supply terminal 7, and the two relay terminals 8 are also electrically connected to the power supply terminal 7. Put 2.2 L of water into the inner container 10.

Next, the operation will be described.
A high frequency current output terminal is connected to the two power terminals 7 provided on the outer layer 3 from a high frequency power source. When a high frequency current is output to the two power supply terminals 7, an exciting current flows through the electromagnetic coil 9, the two relay terminals 8 are magnetically operated, and the contacts of the two relay terminals 8 are connected to the two relay terminals 8a. When the contact is made, the two relay terminals 8 and the two power terminals 7 are electrically connected, so that a high frequency current flows from the two power terminals 7 to the load 5 and an alternating magnetic field is generated from the load 5. Thus, an eddy current due to electromagnetic induction flows in the bottom of the metallic inner container 10 inside the inner layer 2 in the alternating magnetic field, and this eddy current acts on the resistance of the inner container 10. The inner container 10 itself generates heat and is heated until it reaches the heating set temperature of the temperature sensor 6.

When the heating set temperature is reached, the temperature sensor 6 is activated, the high frequency current from the high frequency power supply flowing through the load 5 is cut off, and the relay terminal 8 and the relay terminal 8a that relayed the high frequency current from the two power supply terminals 7 Are opened, the alternating magnetic field generated from the load 5 disappears, the eddy current due to electromagnetic induction at the bottom of the inner container 10 disappears, the heat generation at the bottom of the inner container 10 stops, and the inner container 10 The heating of the bottom of the ceases.

  Moreover, when the temperature of the bottom of the inner container 10 existing inside the inner layer 2 decreases after a long time, the temperature sensor 6 becomes energized when the temperature is decreased to the heating set temperature of the temperature sensor 6. Since a high-frequency current flows from the high-frequency power source, an exciting current flows through the electromagnet coil 9, the two relay terminals 8a are magnetically operated, and the contacts of the two relay terminals 8 and the two relay terminals 8a come into contact with each other. A high-frequency current flows from the high-frequency power source to the load 5, an alternating magnetic field is generated in the load 5, and an eddy current due to this alternating magnetic field flows to the bottom of the inner container 10 inside the inner layer 2. The bottom part itself is heated and heated until it reaches the heating set temperature of the temperature sensor 6.

As described above, since the outer surface bottom portion of the inner layer 2 is heated, the outer surface bottom portion of the inner layer 2 is electromagnetic induction heated at room temperature 25 ° C., water temperature 22 ° C., high frequency power supply 20 Khz, 200 V, and load 1 Kw. Then, 2.2 L of water placed inside the inner layer 2 boiled in 15 minutes. It is also possible to make boiled dishes such as vegetables, meat and fish, and to cook rice. Since the inner and outer two-layer vacuum heater can keep the heat for a long time, it is economical because the heat holding power is reduced.

In addition, the vacuum heating warmer of this invention of 2nd Embodiment is suitable for an IH rice cooker, an IH cooking pan, etc.

FIG. 3 shows a third embodiment of the present invention.
In the vacuum heating incubator 1 with the lid, the inner layer 2 material composed of the inner layer 2 and the outer layer 3 is made of metal, the outer layer 3 material is made of synthetic resin, and the space 4 between the inner and outer layers is evacuated. Then, an electric heating element (hereinafter referred to as a load 5) is closely attached to the outer surface bottom of the inner layer 2 facing the vacuum space 4 as a heatable load 5, and a temperature sensor 6 is provided on the outer surface bottom of the inner layer 2. . A coil 11 that can be electromagnetically coupled to generate an induction current with respect to the electromagnetic induction heater is provided at the bottom of the outer layer 3, and both ends of the coil 11 have current output terminals, respectively. The terminal is electrically connected to one of the power supply terminals 7, and the other current output terminal of the coil 11 is electrically connected to the other of the power supply terminals 7. One end of the load 5 and one of the temperature sensors 6 are electrically connected, the other end of the load 5 is electrically connected to one of the power terminals 7, and the other of the temperature sensors 6 and the other of the power terminals 7 are connected to each other. Connect electrically. Put 2.2 L of water into the inside of the inner layer 2.

Next, the operation will be described.
The vacuum heating container 1 is used with the coil 11 placed on the heating position of an electromagnetic induction heater. When the electromagnetic induction heating coil is present at the heating position of the electromagnetic induction heater and the electromagnetic induction heater is operated, a high-frequency current flows through the electromagnetic induction heating coil and magnetic lines of force are generated. This line of magnetic force passes through the coil 11 placed at the heating position, and an electromotive force is generated in the coil 11 by electromagnetic induction. Since the circuit from the coil 11 to the load 5 is a closed circuit, a current flows due to the electromotive force generated in the coil 11, a current flows through the load 5, the load 5 generates heat, and heats the bottom of the outer surface of the inner layer 2. The bottom surface of the outer surface 2 is heated to the heating set temperature of the temperature sensor 6.

Since the load 5 is attached in close contact with the bottom of the outer surface of the inner layer 2 and is integrated with the bottom of the bottom of the outer surface of the inner layer 2, a normal heating and heating effect can be generated even when the space 4 is vacuum.

When the set temperature of the temperature sensor 6 is reached, the coil 11 becomes an open circuit, the electromotive force of the coil 11 disappears, the current disappears, the current flowing through the load 5 is cut off, and the heat generation of the load 5 stops. Heating of the bottom of the outer surface of the inner layer 2 is also stopped.

  When the temperature at the bottom of the outer surface of the inner layer 2 decreases and reaches the heating set temperature of the temperature sensor 6, the coil 11 becomes a closed circuit, an electromotive force is generated, a current flows through the coil 11, a current flows through the load 5, The load 5 generates heat again, and the outer bottom portion of the inner layer 2 is heated again.

As described above, since the bottom of the outer surface of the inner layer 2 is heated, the heating conditions are as follows: room temperature 25 ° C., water temperature 22 ° C., current generated in the coil 11 is heated at 20 KHz, AC 200 V, load 700 W, and inner layer 2 2.2 L of water in the inside boiled in 18 minutes. It is also possible to make boiled dishes such as vegetables, meat and fish, and to cook rice. Since it is possible to keep the heat for a long time because of the vacuum heating incubator with two layers inside and outside, it is economical because the heat holding power is reduced.

In addition, an electric pot, an electric rice cooker, an electric pan, etc. are suitable as an example of the vacuum heating incubator of this invention of 3rd Embodiment.

The invention's effect

  The vacuum heating incubator of the present invention can directly boil hot water or boil the boiled food with the vacuum incubator itself. For example, in the case of keeping hot water, conventionally, it takes time to transfer hot water boiled in another container to a heat-keeping container such as a thermos bottle, but this time has been saved. In addition, conventionally, when the hot water in the heat insulation container has cooled, the cold water is discharged, or the hot water boiled in another container is transferred to a heat retaining container such as a thermos bottle. In addition, although there was a risk of burn accident due to hot water, the vacuum heating incubator of the present invention can be boiled again as it is, so that it can be boiled in another container or the boiled water. Each time, the trouble and inconvenience such as re-injecting into another container to keep it warm, or the risk of burn accident due to hot water was eliminated. Moreover, the vacuum heating incubator of the present invention can keep the temperature for a long time. Therefore, the power consumed by the conventional electric pot for heat insulation can be saved. In addition to boiling water, you can boil boiled foods and keep cold things cold. As described above, the effects of the vacuum heating incubator of the present invention can save power as well as the inconvenience and disadvantages of the above-mentioned trouble and the risk of burn accidents caused by hot water are eliminated. Moreover, the vacuum heating incubator of this invention can be utilized for multiple purposes, such as an electric pot, an electric rice cooker, an IH rice cooker, an electric cooking pot, an IH cooking pot, a hand towel incubator, and a warm storage.

  It is the front view which notched a part of 1st Embodiment of this invention.   It is the front view which notched a part of 2nd Embodiment of this invention.   It is the front view which notched a part of 3rd Embodiment of this invention.

Explanation of symbols

2 Inner layer 3 Outer layer 4 Space 5 Load 6 Temperature sensor 7 Power supply terminal 8 Relay terminal 8a Relay terminal 9 Electromagnetic coil 10 Inner container 11 Coil

Claims (8)

  A two-layer container comprising an inner layer 2 and an outer layer 3 having a lid, a space 4 between the two layers is evacuated, a load 5 capable of heating the outer surface of the inner layer 2 facing the space 4, and a power source for the outer layer 3 A vacuum heating incubator provided with a terminal 7 and electrically connected to the load 5 and the power supply terminal 7.   The vacuum heating incubator according to claim 1, wherein the heatable load 5 and the power supply terminal 7 are attached by being indirectly electrically connected by a plurality of relay terminals 8 and a plurality of relay terminals 8a.   The vacuum heating incubator according to claim 1 or 2, wherein the heatable load (5) is attached in close contact with the bottom of the outer surface of the inner layer (2).   The vacuum heating incubator according to claim 1 or 2, wherein the heatable load 5 is an electromagnetic induction heating coil. The vacuum heating and heat insulation according to claim 2, 3 or 4, wherein the plurality of relay terminals 8 are magnetically operated relay terminals, and an electromagnetic coil 9 is provided on the outer layer 3 and is electrically connected to the power supply terminal 7. vessel.   The vacuum heating incubator according to claim 4 or 5, wherein the material of the inner layer 2 and the outer layer 3 is made of synthetic resin, and the metal container 10 capable of generating heat by induction heating is provided inside the inner layer 2.   A coil 11 that can be electromagnetically coupled to generate an induction current to an electromagnetic induction heater is provided at the bottom of the outer layer 3, the coil 11 has a current output terminal, and the current output terminal of the coil 11 is connected to the power source. The vacuum heating incubator according to claim 1, 2, 3, 4, 5 or 6, which is electrically connected to the terminal 7. The vacuum heating incubator according to claim 2, 3, 4, 5, 6 or 7, wherein the plurality of relay terminals 8 and the plurality of relay terminals 8a are attached to a shape memory material.

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