JP3296178B2 - Food warmer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food warmer for keeping food cooked by heating.

[0002]

2. Description of the Related Art Conventionally, this type of food warmer has been configured as shown in FIG. Hereinafter, the configuration will be described.

[0003] As shown in the figure, a container 1 stores food (not shown) cooked with heat and is made of cardboard or cardboard. The storage case 2 has a heat-insulating structure in which a heat insulating material 3 is incorporated in most of the storage case 2. The storage case 2 stores the container 1, and an open portion of the storage case 2 is closed by a lid 4. When closed, the container 1 in the storage case 2 is kept warm, and the cooked food is kept at a temperature at which it can be eaten deliciously.

[0004]

However, in such a conventional configuration, the temperature inside the storage case 2 immediately after the container 1 is stored in the storage case 2 and the open portion of the storage case 2 is sealed. Since the temperature is almost the same as the temperature, even if the storage case 2 has heat insulation, there is a difference between the temperature of the food in the container 1 and the temperature in the storage case 2, and the food is radiated into the storage case 2. Thus, there is a problem that the temperature of the cooked food in the container 1 decreases.

Further, although the degree of airtightness of the storage case 2 with the outside air and the material of the heat insulating material 3 vary, the heat insulation performance of the storage case 2 is limited, and heat radiation from the storage case 2 to the outside air can be avoided. There is no present. For this reason, there has been a problem that it is difficult to keep the food in the container 1 at a temperature at which the food in the container 1 can be eaten deliciously after a predetermined time, for example, a time required for delivering the heated food.

As described above, the food in the container 1 continues to radiate heat, and the container 1 does not emit heat after a predetermined period of time, although the structure varies depending on the configuration of the storage case 2 and the performance of the heat insulating material 3.
The temperature of the food inside is below the temperature that can be eaten deliciously,
Further, if left unattended, there is a problem that the temperature drops to the outside temperature.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to maintain the temperature of cooked food at a temperature at which the user can eat delicious food until the user eats it.

[0008]

In food warmer of the present invention According to an aspect of having a catalytic combustion heating device, and a container for containing a food product, the catalytic combustion heating device, stores liquefied fuel gas
And the liquefied fuel gas is vaporized and ejected.
Nozzle and fuel gas and air ejected from this nozzle
And a combustion section for catalytically combusting the mixed gas of
Temperature control to control the combustion temperature by controlling the supply of mixed gas
An apparatus for heating the container with heat generated by the catalytic combustion heating device.

Thus, by heating the container, the cooked food stored in the container can be kept at a predetermined temperature, and until the user eats the food.
The temperature of food can be kept at a temperature at which it can be eaten deliciously.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention has a catalytic combustion heating device and a container for storing food, wherein the catalytic combustion heating device stores a liquefied fuel gas.
A fuel tank and the liquefied fuel gas are vaporized and ejected
Nozzle and mixture of fuel gas and air ejected from this nozzle
Combustion unit that catalyzes combustion of the combined gas and mixing with this combustion unit
Temperature control device that controls combustion temperature by controlling gas supply
And heating the container with heat generated by the catalytic combustion heating device.By heating the container, it is possible to keep the cooked food contained in the container warm, who until eating food, it can be kept delicious eaten temperature the temperature of the food, moreover, the catalyst fuel while controlling the combustion temperature by temperature controller
Baking, and the heat of the catalytic combustion heats the vessel to an arbitrary constant temperature.
Can be heated.

[0011] According to a second aspect of the invention includes a catalytic combustion heating device, and a container for containing a food product, the catalytic combustion heating
The apparatus comprises a fuel tank for storing liquefied fuel gas,
Nozzle for vaporizing and jetting the fuel gas, and this nozzle
Catalytic combustion of a mixed gas of fuel gas and air
Controlling the combustion section and the supply of mixed gas to the combustion section
It has a temperature control device for controlling the combustion temperature, before the container
Are those accommodated in the storage case to heat in serial catalytic combustion heating device can be heated in a state where the container was insulated with a storage case, a user of the food heated and cooked with that contained in the container is Until you eat, you can keep it at a tasty temperature.

According to a third aspect of the present invention, in the second aspect of the present invention, a heat transfer plate made of a good heat conductive material is provided in the catalytic combustion heating device, and the heat transfer plate moves the container upward or downward. Heating from both or both, the container is usually oriented with the larger projected area in the vertical direction to prevent the food from shifting, and the heat transfer plate above or below the container or By heating from both, the food in the container can be uniformly heated and kept warm.

According to a fourth aspect of the present invention, in the second aspect of the present invention, the catalytic combustion heating device is detachably attached to the storage case, and when the storage case is dirty or damaged. For example, the catalytic combustion heating device can be removed, and repair or replacement of the storage case can be facilitated.

According to a fifth aspect of the present invention, in the third aspect of the present invention, the combustion portion of the catalytic combustion heating device is disposed substantially at the center of the heat transfer plate. Even when the amount of heat is small and the heat transfer area of the heat transfer plate is large, the entire container can be heated substantially uniformly, and the temperature unevenness of the food contained in the container can be eliminated.

According to a sixth aspect of the present invention, in the third aspect of the present invention, a heat insulating member is provided on a back side of a surface of the heat transfer plate that comes into contact with the container. Can be prevented from dissipating heat, the container can be efficiently heated, and the food in the container can be kept warm.

According to a seventh aspect of the present invention, in the second aspect of the present invention, a pressing device for urging the container housed in the storage case toward the catalytic combustion heating device is provided. When housed in the case, the container can be pressed into contact with the catalytic combustion heating device, and the container and the heat transfer plate can contact without any gap, and the heat from the catalytic combustion heating device can be efficiently transferred to the container. And the food in the container can be kept warm.

According to an eighth aspect of the present invention, in the above seventh aspect, the pressing device is constituted by a cushion provided in the storage case, and the entire surface of the surface for pressing the cushion against the container is provided. , The container housed in the storage case can be reliably pressed into contact with the catalytic combustion heating device, the food in the container can be kept warm, and vibrations and the like during transportation are buffered and reduced. be able to.

According to a ninth aspect of the present invention, in the seventh aspect of the present invention, the storage case is formed of a flexible material, and the side surface thereof is configured to be able to expand and contract, and the urging force in the contraction direction is reduced. In contrast, when the container is accommodated in the storage case, when the container is accommodated in the storage case, the side surface is extended by the container, so that the container can be reliably pressed against the catalytic combustion heating device, The food in the container can be kept warm, and the container can be held by the storage case to prevent swaying during transportation.

The invention according to claim 10 is the second invention.
In the invention according to the above, the storage case is provided with an openable and closable opening, and a pushing device that urges the container stored in the storage case toward the opening is provided.When the container is taken out from the storage case, When the opening is opened, the container can be pushed out of the storage case by the pushing device, and the container can be easily taken out.

[0020] The invention described in claim 11 is the second invention.
In the invention described in the above, a take-out device that can be taken out of the storage case together with the container is provided, and when taking out the container from the storage case, the container can be taken out of the storage case by the take-out device, and the container can be easily taken out. it can.

[0021]

The twelfth aspect of the present invention is the first aspect of the present invention.
In the invention according to the second aspect , the temperature control device may include a temperature-sensitive magnetic body having a Curie point at which magnetic properties change rapidly, and a magnet provided to face the temperature-sensitive magnetic body to attract the temperature-sensitive magnetic body. A valve for controlling the supply of the mixed gas to the combustion unit, and when the temperature of the temperature-sensitive magnetic material exceeds the Curie point due to the heat of combustion of the catalytic combustion unit, the valve is closed to close the valve. When the temperature of the temperature-sensitive magnetic material is heated by the heat of the catalytic combustion portion and the temperature of the temperature-sensitive magnetic material reaches the Curie point determined by the composition, the magnet is stopped. Becomes unable to be adsorbed on the temperature-sensitive magnetic material, and closes a valve that controls the supply of the mixed gas to the combustion section. As a result, the liquefied fuel gas is not supplied to the catalytic combustion section, and the temperature decreases. The temperature-sensitive magnetic material has a very small hysteresis. When the temperature-sensitive magnetic material returns, the magnet again attracts the temperature-sensitive magnetic material and opens the valve. During this time, the temperature of the catalytic combustion section is sufficiently high because of a short time, and the catalytic reaction starts again when the liquefied fuel gas is supplied. By repeating this action, the temperature of the combustion section can be kept constant.

According to a thirteenth aspect of the present invention, there is provided a catalytic combustion heating device and a container for accommodating food, wherein the catalytic combustion heating device includes a fuel tank for storing a liquefied fuel gas, and a fuel tank for storing the liquefied fuel gas. A nozzle for vaporizing and jetting, a combustion unit for catalytically combusting a mixed gas of fuel gas and air jetted from the nozzle, and a continuous discharge ignition device for starting catalytic combustion; heat generated by the catalytic combustion heating device When the liquefied fuel gas is supplied from the fuel tank, the liquefied fuel gas is vaporized and blown out from the nozzle. At this time, the liquefied fuel gas is mixed with air and supplied to the combustion unit. Then, it is reliably ignited by the continuous discharge ignition device to perform catalytic combustion, and the container can be heated by the catalytic combustion heat.

[0024] The fourteenth aspect of the present invention is the second aspect of the present invention.
In the invention described in the above, the fuel tank is provided detachably from the outside of the storage case, and when the liquefied fuel gas in the fuel tank runs out, the fuel tank is taken out from the outside of the storage case and replenishment of the liquefied fuel gas or The fuel tank can be replaced, and usability can be improved.

According to a fifteenth aspect of the present invention, there is provided the second aspect of the present invention.
In the invention described in the above, the ignition device is provided so as to be operable from the outside of the storage case, and when the container is stored in the storage case and catalytic combustion is started, the ignition device is stored in the storage case. Can be operated to ignite, and usability can be improved.

The invention according to claim 16 is the second invention.
In the invention described in the above, the intake of the air mixed with the fuel gas faces the outer surface of the storage case, and when the container is stored in the storage case and the container is heated by catalytic combustion, mixing with the fuel gas is performed. The generated air can be taken in from the outer surface of the storage case, and stable catalytic combustion can be performed.

[0027] The invention described in claim 17 is the above-described claim 2.
In the invention described in the above, the container whose upper surface is open is heated from above by the heat transfer plate, so that the food contained in the container can directly receive the heat ray radiated from the heat transfer plate, Further, the food can be effectively kept warm by directly heating the inside of the container by the heat transfer plate.

[0028] The invention described in claim 18 is the second invention.
In the invention described in the above, the container is provided with a notch hole at least on the surface heated by the catalytic combustion heating device,
The container can minimize interruption of heat rays radiated from the catalytic combustion heating device, and the heat transfer plate can directly heat the inside of the container to effectively keep the food contained in the container warm. it can.

[0029] The invention described in claim 19 is the invention according to claim 1.
8. In the invention described in 8 , the cutout hole of the container is covered with a film-like member, and the food can be effectively heated through the film-like member, and the cutout hole for keeping the food warm. Thus, dust and the like can be prevented from entering the container from above, and the food contained in the container can be kept hygienic.

[0030]

Embodiments of the present invention will be described below with reference to the drawings.

(Example 1) As shown in FIGS. 1 and 2,
The storage case 11 has an inner wall surrounded by a heat insulating material.
It is configured to be able to be opened and closed freely by being detachably locked by the above, and to be able to accommodate a container 13 for accommodating food (not shown). The catalytic combustion heating device 14 is provided with a heat transfer plate 15 made of a good heat conductive material,
The container 13 is heated from above through the heat transfer plate 15.

As shown in FIG. 3, the catalytic combustion heating device 14 is configured to cover the catalytic combustion section 16 with a protective cover 17, and fixes the catalytic combustion section 16 to a substantially central portion of the heat transfer plate 15 with screws or the like. Then, the combustion gas and the air are oxidized and catalytically burned. The heat obtained by the catalytic combustion heats, via the heat transfer plate 15, the container 13 disposed below and in contact with the heat transfer plate 15, and is transmitted to the food contained in the container 13.

The protective cover 17 is provided with a catalytic combustion heating device 14.
Is protected from external impact, and the combustion part 16 is not directly touched. This protective cover 17
Are fixed to the heat transfer plate 15, and are also detachably fixed to the upper surface of the storage case 11 with screws 18. A heat insulating member 19 is provided on the surface of the heat transfer plate 15 opposite to the surface in contact with the container 13.

The operation of the above construction will be described. The cooked food is accommodated in a container 13, and the container 13 is inserted from one open side of the storage case 11, a part of the container 13 is bent, and the container 13 is connected to each other by the attachment portion 12. It is stored in the storage case 11 by being locked.

In this state, when the catalytic combustion heating device 14 performs catalytic combustion, the container 13 can be heated via the heat transfer plate 15 while being insulated in the storage case 11 and stored in the container 13. The food can be kept warm, and the temperature of the food can be maintained at a temperature at which the user can eat delicious food until the user eats the food. In addition, since the catalytic combustion heating device 14 is used as a heat source, it is easy to carry, easy to use, and can accurately heat the container.

At this time, by heating from above the container 13 with the heat transfer plate 15, the food in the container 13 can be uniformly heated and kept warm. Further, since the heat insulating member 19 is provided on the surface of the heat transfer plate 15 opposite to the surface in contact with the container 13, the amount of heat generated by the catalytic combustion heating device 14 is small and the heat transfer area of the heat transfer plate 15 is large. But container 13
The whole can be heated substantially uniformly, and the temperature unevenness of the food in the container 13 can be eliminated.

Further, since the catalytic combustion heating device 14 is detachably fixed to the upper surface of the storage case 11 with screws 18, the catalytic combustion heating device 14 is used when the storage case 11 becomes dirty or damaged. The storage case 11 can be removed, and repair and replacement of the storage case 11 can be facilitated.

In the above embodiment, the catalytic combustion heating device 14 heats the vessel 13 from above with the heat transfer plate 15, but the positions of the catalytic combustion heating device 14 and the heat transfer plate 15 are The same effect can be obtained also on the lower surface of the case 11, and if the shape of the heat transfer plate 15 is formed so as to sandwich the upper and lower sides of the container 13 as shown in FIG. Since heat is supplied from both sides, it is possible to more effectively heat and keep the temperature.

(Embodiment 2) As shown in FIG. 5, the storage case 20 is surrounded by a built-in heat insulating material, and a sponge or the like is provided on the opposite surface to which the heat transfer plate 15 is attached, that is, on the lower surface side of the storage case 20. Elastic cushion body (pressing device) 2
1, the container 13 is configured to urge the container 13 toward the heat transfer plate 15 provided in the catalytic combustion heating device 14 when the container 13 containing the cooked food is accommodated. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described. When the container 13 containing the cooked food is accommodated in the storage case 20, the container 13 is urged toward the heat transfer plate 15 by the reaction force of compressing the cushion body 21. Then, a predetermined pressure for contact is applied.

Therefore, the container 13 can be stored in the storage case 11 with no gap between the heat transfer plate 15 and the container 13, and the heat from the catalytic combustion heating device 14 can be efficiently transferred to the container 13. And the food in the container 13 can be kept warm.

In the above embodiment, the cushion 21
As shown in FIG. 6, the storage case 22 is formed of a flexible material, and the side surface 23 thereof is configured to be expandable and contractable. The container 13 is accommodated in the storage case 22 against the urging force in the direction, so that when the container 13 is accommodated in the storage case 22, the side surface of the container 13 is extended by the inserted container 13. Can be reliably pressed against the heat transfer plate 15, and the food in the container 13 can be kept warm.

(Embodiment 3) As shown in FIG. 7, a flexible member (extrusion device) 25 is disposed opposite the opening of the storage case 24, and the flexible member 25 is When the container 13 is stored in the storage case 24, the container 13 is configured to be urged toward the opening, and specifically, a metal or rigid resin is formed in an arc shape so that elastic force is applied. I have. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described. When taking out the container 13 from the storage case 24, the storage case 2
When the lid 26 is opened, the container 13 can be pushed out from the opening of the storage case 24 by the urging force of the flexible member 25, and the container 13 can be easily taken out.

In the above embodiment, the flexible member 25 is disposed on the opposite side of the opening of the storage case 24.
When the container 13 is taken out of the storage case 11 by arranging an L-shaped take-out device 27 on an arbitrary surface of the container 13 and taking out the container 14 together with the take-out device 27 as shown in FIG. , Retrieval tool 27
Thereby, the container 13 can be taken out of the storage case 11, and the container 13 can be easily taken out.

(Embodiment 4) As shown in FIGS. 9 and 10, the catalytic combustion heating device 14 vaporizes the liquefied fuel gas stored in the fuel tank 28 and jets it from the nozzle 29, and jets it from the nozzle 29. The mixed gas of the fuel gas and the air is catalytically burned in the catalytic combustion unit 30.

The fuel tank 28 is provided detachably from the outside of the storage case 11. The temperature control device 31
The supply of the mixed gas to the catalytic combustion section 30 is controlled to control the combustion temperature. The heat generated by the catalytic combustion heating device 14 heats the container 13 via the heat transfer plate 15.

The catalyst 32 is supported on a corrugated carrier, and is arranged on the inner surface of a cylindrical case 33 made of a material having good thermal conductivity such as aluminum or copper. An exhaust port 34 is provided on the side wall of the case 33. An electric insulator 35 made of ceramic or the like is provided on the inner surface of the case 33 on the downstream side of the catalyst 32. The electric insulator 35 discharges a spark at the time of ignition to ignite the catalyst 32.
6 constitute the catalytic combustion unit 30.

The temperature control device 31 is configured as shown in FIG. 11, and a temperature-sensitive ferrite (temperature-sensitive magnetic material) 37 is
The Curie point at which the magnetic properties change rapidly (eg, 120
C), is formed in a ring shape, and is fixed to the outer shell 38. The magnet 39 is provided to face the temperature-sensitive ferrite 37,
It sucks the temperature-sensitive ferrite 37, holds the valve member 40 on the surface opposite to the temperature-sensitive ferrite 37, and
A valve holding body 42 having a predetermined gap 41 is fixed to the inner surface of the valve 8. The spring 43 urges the magnet 39 in a direction away from the temperature-sensitive ferrite 37.

The valve body 44 is provided with a valve port 45 facing the valve member 40 to form a valve. The valve 29 is provided at a position opposite to the valve port 45 with a nozzle 29 for ejecting vaporized fuel gas toward the catalyst 32. Provided. Here, the direction in which the fuel gas flows and the direction in which the valve closes are set to the same direction. The outer shell 38 is press-fitted and fixed to the inner surface of one end of the case 33. Numeral 46 denotes a fuel gas supply port, as shown in FIG.
Connected through.

At this time, the fuel tank 28 is in the storage case 1
The fuel tank 2 is configured to be detachable from the outside of the fuel tank 2.
After the tank 8 is attached, the tank cover 48 is locked to the protective cover 17 to protect the tank cover 48 from impacts such as dropping. Further, between the catalyst 32 and the nozzle 29, a hole for taking in air, a so-called intake port 49 is provided. At this time, the intake port 49 is directed to the protective cover 17 side,
It faces the outer surface of the storage case 11. Other configurations are the same as those in the first embodiment.

When the fuel gas is supplied from the fuel tank 28 through the fuel gas supply port 46, the fuel gas passes through the center of the temperature-sensitive ferrite 37, the temperature-sensitive ferrite 37, the magnet 39, and the valve holding member. Body 4
2 to the valve port 45 and the nozzle 2
Blow out from 9. At this time, the air is drawn from the intake hole 49 by the flow rate of the fuel gas, and becomes a mixture of the fuel gas and the air, and is supplied to the catalyst 32.

Then, the ignition button 50 arranged outside the storage case 11 is operated to operate the continuous discharge ignition device (not shown).
Is activated, and the spark is continuously blown from the discharge electrode 36, so that a flame is reliably generated on the discharge electrode 36 side of the catalyst 32. The shape of the catalyst 32 is a shape suitable for producing a flame. The generated flame heats the catalyst 32 and starts a catalytic reaction.

When the catalyst 32 starts the catalytic reaction, only the exhaust gas comes to the flame, and the flame is extinguished naturally. The case 33 is heated by the catalytic reaction, and the heat transfer plate 15 is heated by the catalytic combustion heat.

The case 33 of the catalytic combustion section 30 is heated, and the outer shell 38 is heated by the heat, so that the temperature-sensitive ferrite 37 fixed to the outer shell 38 is heated. Reaches the Curie point determined by the composition, the magnet 39 cannot absorb the temperature-sensitive ferrite 37, is separated from the temperature-sensitive ferrite 37 by the spring 43, and the valve member 40 moves to the valve body 44 side to close the valve port 45. . As a result, the fuel gas is not supplied to the catalyst 32, and the temperature decreases.

The temperature-sensitive ferrite 37 has a very small hysteresis and returns to its original state with a temperature change of several degrees or less.
When the temperature-sensitive ferrite 37 returns, the magnet 39 attracts the temperature-sensitive ferrite 37 again and opens the valve port 45. Since the temperature of the catalyst 32 is sufficiently high during this time, the catalytic reaction starts again when the fuel gas is supplied. By repeating this operation, the temperature of the case 33 can be kept constant.

The control temperature at this time is the temperature-sensitive ferrite 3
Since the temperature control device 31 made of the temperature-sensitive ferrite 37 having the same composition can control the temperature at the same temperature, there is no need for adjustment at the time of assembly. For this reason, mass production becomes very easy. In addition, when it is desired to change the set temperature, a temperature-sensitive ferrite 37 having a predetermined composition may be combined, which can be performed very easily.

As described above, catalytic combustion is performed while controlling the combustion temperature by the temperature control device 31.
The food is supplied with heat through the heat transfer plate 15 and can be maintained at a predetermined temperature.

Since the spark is continuously emitted from the discharge electrode 36 by operating the ignition button 50 to operate the continuous discharge ignition device, a flame can be reliably generated on the discharge electrode 36 side of the catalyst 32.

Since the fuel tank 28 is configured to be detachable from the outside of the storage case 11, the fuel tank 2
When the liquefied fuel gas in the tank 8 runs out, the fuel tank 28 can be taken out from the outside of the storage case 11, and the liquefied fuel gas can be replenished or the fuel tank 28 can be replaced.

Since the ignition button 50 is disposed outside the storage case 11, the ignition button 50 can be operated by operating the ignition button 50 in a state where the container 13 is stored in the storage case 11.

Further, since the intake port 49 faces the outer surface of the storage case 11, when the container 13 is stored in the storage case 11 and the container 13 is heated by catalytic combustion, the air mixed with the combustion gas is discharged from the storage case 11. Can be taken in from the outside.

(Embodiment 5) As shown in FIG. 12, a container 51 for accommodating food has a notch 52 provided on an upper surface (a surface heated by the catalytic combustion heating device 14). 52 is covered with a film-like member 53 through which heat rays can easily pass. Then, the catalytic combustion heating device 1 is placed above the container 51.
A heat transfer plate 15 to which the heat transfer plate 4 is fixed, and a heat insulating material 19 for preventing heat radiation to the upper surface of the heat transfer plate 15 are arranged, and the container 51 and the heat transfer plate 15 are housed in the storage case 11 in contact with each other. I have.

The operation of the above structure will be described. The notch 52 is provided on the upper surface of the container 51, and the notch 52 is covered with a film-like member 53 through which heat rays can easily pass.
Heat rays radiated from the heat transfer plate 15 disposed in contact with the container 51 above the container 51 efficiently hit the food, and the food can be kept warm.

Further, if the upper and lower surfaces of the container 51 are formed of transparent members and the heat transfer plates 15 are disposed on both the upper and lower surfaces, the food can receive the heat rays radiated from the upper and lower surfaces, so that the food can be more effectively processed. Can be kept warm.

[0066]

As described above, according to the first aspect of the present invention, there is provided a catalytic combustion heating device and a container for storing food, wherein the catalytic combustion heating device supplies liquefied fuel gas.
A fuel tank for storage, and vaporization and injection of the liquefied fuel gas
Nozzle and the fuel gas ejected from this nozzle
A combustion section for catalytically burning a gas mixture of air, and the combustion section
To control the combustion temperature by controlling the supply of mixed gas to the furnace
A control device, kept the because in heat generated by the catalytic combustion heating apparatus so as to heat the container to a temperature eaten Contact masonry in Tokima the cooked food used for person eats in the container Rutotomoni can, by temperature controller
Heating the vessel to any constant temperature while controlling the combustion temperature
In addition, because the catalytic combustion heating device is used as the heat source, it is easy to carry, easy to use, accurately heat the container without being affected by the outside temperature, and maintain the food at a predetermined temperature. Can be.

[0067] According to the invention described in claim 2, comprising: a catalytic combustion heating device, and a container for containing a food product, the
The catalytic combustion heating device is a fuel tank that stores liquefied fuel gas.
And a nozzle for vaporizing and jetting the liquefied fuel gas
And a gas mixture of fuel gas and air ejected from this nozzle
And a mixed gas to the combustion section
Equipped with a temperature control device to control the combustion temperature by controlling the supply
And, wherein from a container accommodating the storage case to heat by the catalytic combustion heating device, a container in the housing case can be heated while thermal insulation, the cooked foods contained in the container user Until you eat, you can maintain a delicious temperature.

According to the third aspect of the present invention, the catalytic combustion heating device is provided with a heat transfer plate made of a good heat conductive material, and the heat transfer plate heats the container from above, below, or both. Because of this, the container is usually oriented vertically with the larger projected area in order to prevent the food from shifting, and by heating from above and / or below the container with a heat transfer plate, The food in the container can be uniformly heated and kept warm.

According to the fourth aspect of the present invention, since the catalytic combustion heating device is detachably attached to the storage case, the catalytic combustion heating device can be used when the storage case becomes dirty or damaged. It can be removed, and repair and replacement of the storage case can be facilitated.

According to the fifth aspect of the present invention, since the combustion portion of the catalytic combustion heating device is disposed substantially at the center of the heat transfer plate, the amount of heat generated by the catalytic combustion heating device is small, and Even when the heat transfer area is large, the entire container can be heated substantially uniformly, and the temperature unevenness of the food in the container can be eliminated.

According to the sixth aspect of the present invention, since the heat insulating member is provided on the back side of the surface of the heat transfer plate that comes into contact with the container, heat dissipation through the heat transfer plate is prevented by the heat insulating member. Therefore, the container can be efficiently heated, and the food in the container can be appropriately kept warm.

According to the seventh aspect of the present invention, since the pressing device for urging the container accommodated in the storage case toward the catalytic combustion heating device side is provided, when the container is accommodated in the storage case, the container is removed. It can be pressed into contact with the catalytic combustion heating device, the container and the heat transfer plate can contact without any gap, the heat from the catalytic combustion heating device can be efficiently transferred to the container, and the food in the container is kept warm can do.

According to the eighth aspect of the present invention, since the pressing device is constituted by the cushion provided in the storage case, the storage is provided by providing the cushion over the entire surface for pressing the container. The container accommodated in the case can be reliably pressed against the catalytic combustion heating device, and the food in the container can be kept warm.

According to the ninth aspect of the present invention, the storage case is formed of a flexible material, the side surface thereof is configured to be stretchable, and the container is stored against the urging force in the contraction direction. Since the container is housed in the case, when the container is housed in the storage case, the side surface is extended by the container, so that the container can be reliably pressed against the catalytic combustion heating device, and the food in the container is kept warm. Can be.

According to the tenth aspect of the present invention,
The storage case is provided with an opening that can be opened and closed, and the pushing device that urges the container housed in the storage case toward the opening is provided.When the container is taken out of the storage case, the container is opened by the pushing device when the opening is opened. Can be pushed out of the storage case, and the container can be taken out without touching the heated heat transfer plate in the storage case.

According to the eleventh aspect of the present invention,
Since the take-out device that can be taken out of the storage case is provided together with the container, when taking out the container from the storage case, the container can be taken out of the storage case without touching the heated heat transfer plate in the storage case by the take-out device.

[0077]

According to the twelfth aspect of the present invention,
The temperature control device includes a temperature-sensitive magnetic material having a Curie point at which magnetic characteristics change rapidly, a magnet provided to face the temperature-sensitive magnetic material to attract the temperature-sensitive magnetic material, and a mixed gas to the combustion unit. When the temperature of the temperature-sensitive magnetic material exceeds the Curie point due to the heat of combustion of the catalytic combustion unit, the valve is closed to stop the supply of the mixed gas, and Since the temperature is controlled, the temperature-sensitive magnetic material is heated by the heat of the catalytic combustion unit, and when the temperature of the temperature-sensitive magnetic material reaches the Curie point determined by the composition, the magnet cannot be attracted to the temperature-sensitive magnetic material, Close the valve that controls the supply of the mixed gas to the combustion section. As a result, the liquefied fuel gas is not supplied to the catalytic combustion section, and the temperature decreases. The temperature-sensitive magnetic material has a very small hysteresis. When the temperature-sensitive magnetic material returns, the magnet again attracts the temperature-sensitive magnetic material and opens the valve. During this time, the temperature of the catalytic combustion section is high enough for a short time,
When the liquefied fuel gas is supplied, the catalytic reaction starts again.
By repeating this operation, the temperature of the combustion section can be kept constant, and the temperature of the food can be maintained at a temperature at which the user can eat delicious food until the user eats the food.

According to the thirteenth aspect of the present invention,
It has a catalytic combustion heating device and a container for storing food, the catalytic combustion heating device has a fuel tank that stores liquefied fuel gas, a nozzle that vaporizes and liquefies the liquefied fuel gas, A combustion unit for catalytically burning a mixed gas of fuel gas and air, and a continuous discharge ignition device for starting catalytic combustion, wherein the container is heated by heat generated by the catalytic combustion heating device. When the liquefied fuel gas is supplied from the tank, the liquefied fuel gas is vaporized and blown out from the nozzle. At this time, the liquefied fuel gas is mixed with air and supplied to the combustion section, and is reliably ignited by the continuous discharge ignition device. The catalyst is burned, and the container can be heated by the heat of the catalyst combustion.

According to the fourteenth aspect of the present invention,
Since the fuel tank is provided detachably from the outside of the storage case, when the liquefied fuel gas in the fuel tank is exhausted, the fuel tank can be taken out from the outside of the storage case to replenish the liquefied fuel gas or replace the fuel tank, Usability can be improved.

According to the fifteenth aspect of the present invention,
Since the ignition device is provided so as to be operable from the outside of the storage case, when the container is accommodated in the storage case and catalytic combustion is started, the ignition device can be operated with the container stored in the storage case to ignite. , The usability can be improved.

According to the sixteenth aspect of the present invention,
Since the intake of the air mixed with the fuel gas faces the outer surface of the storage case, when the container is stored in the storage case and the container is heated by catalytic combustion, the air mixed with the fuel gas flows from the outer surface of the storage case. It can be incorporated and can perform stable catalytic combustion.

According to the seventeenth aspect of the present invention,
Since the container whose upper surface is opened is heated from above by the heat transfer plate, the food contained in the container can directly receive the heat rays radiated from the heat transfer plate, and the inside of the container is heated by the heat transfer plate. Can be directly heated to effectively keep food warm.

According to the eighteenth aspect of the present invention,
Since the container has a cutout hole at least on the surface heated by the catalytic combustion heating device, it is possible to minimize the interruption of the heat rays radiated from the catalytic combustion heating device by the container, and the inside of the container by the heat transfer plate. Can be directly heated to effectively keep the food contained in the container warm.

According to the nineteenth aspect ,
Since the cutout hole of the container is covered with the film-shaped member, the food can be effectively heated through the film-shaped member, and dust and the like can be prevented from entering the container through the cutout hole. And the inside of the container can be kept hygienic.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an example of a food warmer according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the food warmer.

FIG. 3 is an enlarged sectional view of a main part of the food warmer.

FIG. 4 is a cross-sectional view of another example of the food warmer.

FIG. 5 is a sectional view of an example of a food warmer according to a second embodiment of the present invention.

FIG. 6 is a sectional view of another example of the food warmer.

FIG. 7 is a sectional view of an example of a food warmer according to a third embodiment of the present invention.

FIG. 8 is a sectional view of another example of the food warmer.

FIG. 9 is a partially cutaway top view of the catalytic combustion heating device of the food warmer according to the fourth embodiment of the present invention.

FIG. 10 is an enlarged sectional view of a catalytic combustion section of the food warmer.

FIG. 11 is an enlarged sectional view of a temperature control device of the food warmer;

FIG. 12 is an exploded perspective view of a food warmer according to a fifth embodiment of the present invention.

FIG. 13 is a cross-sectional view of a conventional food warmer.

[Explanation of symbols]

 11 storage case 13 container 14 catalytic combustion heating device

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tomoaki Kitano 1006 Kazuma Kadoma, Kadoma City, Osaka Inside Matsushita Electric Industrial Co., Ltd. (56) References Japanese Utility Model 5-9420 (JP, U) Japanese Utility Model Sho 61- 14927 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47J 36/24-36/30 F23C 11/00 306 F24C 3/14

Claims (19)

(57) [Claims] The present invention has a catalytic combustion heating device and a container for containing food, wherein the catalytic combustion heating device supplies liquefied fuel gas.
A fuel tank for storage, and vaporization and injection of the liquefied fuel gas
Nozzle and the fuel gas ejected from this nozzle
A combustion section for catalytically burning a gas mixture of air, and the combustion section
To control the combustion temperature by controlling the supply of mixed gas to the furnace
A food warmer having a control device , wherein the container is heated by heat generated by the catalytic combustion heating device. 2. A catalytic combustion heating device, comprising: a container for storing food; wherein the catalytic combustion heating device supplies liquefied fuel gas.
A fuel tank for storage, and vaporization and injection of the liquefied fuel gas
Nozzle and the fuel gas ejected from this nozzle
A combustion section for catalytically burning a gas mixture of air, and the combustion section
To control the combustion temperature by controlling the supply of mixed gas to the furnace
A control device, food warmer which houses said container housing case to heat by the catalytic combustion heating device. 3. The heat insulation for food according to claim 2, wherein a heat transfer plate made of a material having good heat conductivity is provided in the catalytic combustion heating device, and the heat transfer plate heats the container from above, below, or both. vessel. 4. The food warmer according to claim 2, wherein the catalytic combustion heating device is detachably attached to the storage case. 5. The food warmer according to claim 3, wherein a combustion portion of the catalytic combustion heating device is disposed substantially at a center of the heat transfer plate. 6. The food warmer according to claim 3, wherein a heat insulating member is provided on the back side of the surface of the heat transfer plate that contacts the container. 7. The food warmer according to claim 2, further comprising a pressing device for urging the container housed in the housing case toward the catalytic combustion heating device. 8. The food warmer according to claim 7, wherein the pressing device is constituted by a cushion provided in the storage case. 9. The storage case is formed of a flexible material, the side surface thereof is configured to be stretchable, and the container is stored in the storage case against a biasing force in a contraction direction. Food warmer as described. 10. The food warmer according to claim 2, wherein the storage case is provided with an openable and closable opening, and a pushing device for urging the container stored in the storage case toward the opening is provided. 11. food warmer according to claim 2, wherein providing the housing cases or al removable extraction device with the container. 12. The temperature control device according to claim 1 , wherein the magnetic characteristic is sharply increased.
A temperature-sensitive magnetic material having a changing Curie point;
Magnet that is provided to face the sexual body and attracts the temperature-sensitive magnetic body
And a valve for controlling the supply of the mixed gas to the combustion section.
The temperature of the temperature-sensitive magnetic material is determined by the combustion heat of the catalytic combustion unit.
When the temperature exceeds the Curie point, the valve is closed and mixed.
To stop the gas supply and control the temperature of the combustion section
The food warmer according to claim 1 or 2, wherein: 13. A catalytic combustion heating device for accommodating food.
A liquefied fuel gas.
And a fuel tank for storing the liquefied fuel gas
Nozzle to be ejected and fuel gas ejected from this nozzle
Combustion unit that catalytically combusts a gas mixture of air and air, and catalytic combustion
A continuous discharge ignition device for starting
A food warmer configured to heat the container with heat generated by a heat device. 14. A fuel tank is mounted from outside the storage case.
The food warmer according to claim 2, which is detachably provided . 15. food warmer according to claim 2, wherein provided operably <br/> ignition device from the outside of the housing case. 16. An intake port for air mixed with fuel gas.
The food warmer according to claim 2 , which faces the outer surface of the storage case . 17. A container having an upper surface opened by a heat transfer plate.
The food warmer according to claim 2, wherein the food is heated from the side . 18. The container may include at least a catalytic combustion heating device.
3. The food warmer according to claim 2 , wherein a notch hole is provided in a surface heated by the step . 19. A notch of a container is formed by a film-like member.
19. The food warmer according to claim 18 , which is covered .