JP2011140321A - Heat-insulating storage device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat-insulating storage device capable of efficiently insulating the heat while an object to be heated is heated and stored therein. <P>SOLUTION: The heat-insulating storage device 1 includes a heat insulating member 21 arranged so as to surround a storage part 20 for storing an object to be heated, a heat-generating body 4 which is provided on the heat insulating member 21 to convert the electric energy into the heat energy, and a heat accumulation member 5 which is attachably/detachably mounted on the heat insulating member 21 to accumulate the thermal energy converted from the electric energy by the heat-generating body 4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a heat retaining container that can retain heat in a state in which a heat retaining object such as food is stored.

  In recent years, there has been an increase in home delivery services for delivering foods (also referred to as food and drink) cooked by single persons, elderly persons, and the like by motorcycles. The courier service has an advantage that a single person who does not cook or an elderly person who cannot cook can eat at home without going out.

  By the way, it is important for such a courier service to deliver the food and drink to be delivered to the customer as fresh as possible in order to have a delicious meal. For example, it is important to deliver hot food and drink to the customer in a warm state, and it is not preferable that the food and drink to be delivered cool.

  On the other hand, a courier usually attaches a delivery box to a loading platform of a vehicle such as a motorcycle, and delivers cooked food and drink in the delivery box. However, the conventional delivery box does not have a heating function. For this reason, the home delivery company delivers the home while preventing heat from being released from the food or drink by forming a delivery box with a heat insulating member such as polystyrene foam or covering the cooked food or drink with a film for keeping warm. It was.

  However, for example, when the ambient temperature is low, such as in winter, the temperature of food and drink decreases in a short time. Therefore, the temperature of food and drink often decreases when it reaches the customer. Thereby, a warm food and drink may not be provided as it is.

On the other hand, the delivery equipment for home delivery provided with the heat insulating material and the heat storage material is disclosed (for example, refer patent document 1).
The food delivery device for home delivery disclosed in Patent Document 1 includes a heat insulating material in the interior. The stored tableware has a built-in heat storage material. Thereby, the delivery equipment for home delivery can perform delivery, maintaining the temperature of food and drink to some extent with the heat of tableware, suppressing heat discharge | release with a heat insulating material.

JP-A-11-152162

  However, the delivery device for home delivery described in Patent Document 1 cannot heat food and drink more than transferring heat energy stored in the heat storage member. Therefore, for example, when all the heat energy stored in the heat storage material is released before the delivery ends, such as when delivering to a relatively long distance, the stored food and drink may be cooled. Moreover, since it is the structure which incorporates a heat storage material in tableware, a restriction | limiting adds to the food and drink which can be accommodated.

  An object of the present invention is to provide a heat retaining container that can efficiently retain heat while a warm object to be warmed is stored.

  The present invention includes a heat insulating member disposed so as to surround a storage portion that can store a heat-insulating object, a heating element that is provided in the heat insulating member and converts electrical energy into heat energy, and is detachable from the heat insulating member. And a heat storage member that stores the thermal energy converted from the electrical energy by the heating element.

  Moreover, it is preferable that a heat retention container is further equipped with the heat conductive member arrange | positioned at the said accommodating part side of the said thermal storage member.

  Moreover, it is preferable that the said heat insulation member is provided with the attachment / detachment part which can attach or detach the said thermal storage member, and the said attachment / detachment part is formed in the said accommodating part side rather than the center in the thickness direction of the said heat insulation member.

  Moreover, it is preferable that the said heat storage member is arrange | positioned at the said accommodating part side of the said heat generating body.

  Moreover, it is preferable that the said heat insulation member has a recessed part which can arrange | position the said thermal storage member, and the said thermal storage member is arrange | positioned at the said recessed part.

  Moreover, it is preferable that the said heat generating body is arrange | positioned at the said accommodating part side of the said thermal storage member.

  ADVANTAGE OF THE INVENTION According to this invention, the heat storage container which can be warmed efficiently in the state which accommodated the warm to-be-heated material can be provided.

It is a perspective view which cuts out and shows the heat insulation box which concerns on 1st Embodiment of this invention. It is AA arrow sectional drawing which shows the heat retention box shown in FIG. 1 in the state which closed the cover part. It is a perspective view which shows the state which mounts | wears with the heat storage member in the side wall part of the heat retention box which concerns on 1st Embodiment. It is AA arrow sectional drawing which shows the state which attaches a thermal storage member to the cover part and floor part of a heat retention box shown in FIG. It is a perspective view which shows the thermal storage box which can thermally store the some thermal storage member which concerns on 1st Embodiment simultaneously. It is a perspective view which notches and shows the heat retention box which concerns on 2nd Embodiment of this invention. It is BB arrow sectional drawing which shows the heat retention box shown in FIG. 6 in the state which closed the cover part.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The heat insulation box 1 as the heat insulation container according to the embodiment of the present invention is, for example, a state where the food and drink are warm when the delivery agent delivers the food and drink as the heat-warmed food cooked (processed) to the customer. It is used for delivery as is.

[First Embodiment]
First, the heat retaining box 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
FIG. 1 is a perspective view showing a heat retaining box 1 according to the first embodiment of the present invention with a part cut away. FIG. 2 is a cross-sectional view taken along line AA showing the heat retaining box 1 shown in FIG. 1 with the lid 3 closed. FIG. 3 is a perspective view showing a state in which the heat storage member 5 is mounted on the side wall portion 21 of the heat retaining box 1 according to the first embodiment. FIG. 4 is a cross-sectional view taken along the line AA showing the state where the heat storage member 5 is mounted on the lid 3 and the bottom 22 of the heat retaining box 1 shown in FIG.

  As shown in FIGS. 1 and 2, the heat retaining box 1 according to the first embodiment includes a rectangular box-shaped box body 2 having an opening 28 on the upper surface, and a lid 3 that opens and closes the opening 28 of the box body 2. A plurality of heaters 4 as heating elements provided in the box body 2, a plurality of heat storage members 5 that can be attached to and detached from the box body 2, a plurality of aluminum sheets 6a and 6b as heat conducting members, and a plurality of heaters 4 And a power supply plug 7 for connecting the heater 4 to a power supply (not shown) for supplying electric power.

  As shown in FIG. 1, the box main body 2 includes a storage portion 20 that communicates with the opening 28 and can store food and drink, a side wall portion 21 that is located on all sides of the box main body 2 so as to surround the storage portion 20, and stores And a bottom portion 22 located below the portion 20.

  As shown in FIG. 2, the storage portion 20 is configured by an inner wall surface 21 a of the side wall portion 21 and an upper surface 22 a of the bottom portion 22, and stores food and drink in a state where food and drink are placed on the upper surface 22 a of the bottom portion 22. To do. In the present embodiment, the inner wall surface 21a of the side wall portion 21 is covered with the aluminum sheet 6a, and the upper surface 22a of the bottom portion 22 is covered with the aluminum sheet 6b. The food and drink are placed on the upper surface 22a of the bottom portion 22 via the aluminum sheet 6b in a state surrounded by the aluminum sheets 6a and 6b covering the inner wall surface 21a of the side wall portion 21 and the upper surface 22a of the bottom portion 22.

  The side wall part 21 is formed of a heat insulating member. Examples of the heat insulating member include a gypsum boat and ceramic fiber formed of gypsum mixed with glass wool or the like.

Moreover, as shown in FIG.2 and FIG.3, the side wall part 21 is equipped with the attachment / detachment part 23 which can attach or detach the heat storage member 5, and the heater arrangement | positioning part 24 by which the heater 4 is arrange | positioned.
The detachable part 23 is formed in a hollow shape substantially the same shape as the heat storage member 5, and is formed so that the heat storage member 5 can be inserted into the side wall part 21. In the present embodiment, the heat storage member 5 is formed so as to be inserted into the detachable portion 23 from the upper surface 21 b of the side wall portion 21.
Further, the detachable part 23 is formed inside the side wall part 21 closer to the storage part 20 than the center in the thickness direction of the side wall part 21. That is, the detachable part 23 is formed in the vicinity of the storage part 20 inside the side wall part 21. As a result, the thickness of the side wall portion 21 on which the detachable portion 23 is formed is such that the thickness on the inner wall surface 21a side (the storage portion 20 side of the side wall portion 21 on which the detachable portion 23 is formed) is the outer wall surface side. It becomes thinner than the thickness of the detachable part 23 (the side opposite to the inner wall surface 21a side).

  The heater arrangement portion 24 is formed in a hollow shape substantially the same shape as the heater 4 inside the side wall portion 21. The heater placement portion 24 is formed adjacent to the detachable portion 23 provided in the side wall portion 21. Specifically, the heater arrangement portion 24 is formed so that the heat storage member 5 inserted into the attachment / detachment portion 23 and the heater 4 arranged in the heater arrangement portion 24 are in contact with each other. In the first embodiment, the heater arrangement portion 24 is formed on the side (outer wall surface side) opposite to the storage portion 20 side (inner wall surface 21a side) with respect to the detachable portion 23.

A locked portion 25 is provided on the upper side of the side wall portion 21 located on the front side of the box body 2.
Further, a plug connection portion 26 to which the power plug 7 can be connected is provided on the lower side of the side wall portion 21 located on the front side of the box body 2.

  As shown in FIG. 2, the bottom 22 is formed of a heat insulating member. Examples of the heat insulating member include gypsum board and ceramic fiber formed of gypsum mixed with glass wool or the like.

Moreover, the bottom part 22 is provided with the 1st recessed part 27 which can arrange | position the thermal storage member 5 and the heater 4, as shown in FIG.2 and FIG.4.
The first concave portion 27 is provided on the upper surface 22 a side of the bottom portion 22, and is formed so as not to protrude from the upper surface 22 a of the bottom portion 22 in a state where the heat storage member 5 and the heater 4 are stacked. In the first embodiment, in the first recess 27, the heat storage member 5 is disposed from above the heater 4 after the heater 4 is disposed from above.

The lid 3 includes a lid main body 30 that opens and closes the opening 28 of the box main body 2, a heat insulating board 31 that suppresses release of heat, a heater 32 that converts electrical energy into thermal energy, and a heat storage that stores thermal energy. And a member 33.
The lid main body 30 is formed of a heat insulating member. Examples of the heat insulating member include gypsum board and ceramic fiber formed of gypsum mixed with glass wool or the like.

  Moreover, the cover main body 30 is provided with the 2nd recessed part 34 which can arrange | position the heat insulation board 31, the heater 32, and the thermal storage member 33, as shown in FIG.2 and FIG.4. The second recess 34 is formed so that it can be disposed so as not to protrude from the upper surface 30 a of the lid body 30 in a state where the heat insulating board 31, the heater 32, and the heat storage member 33 are stacked. In the first embodiment, after the heat storage member 33 is disposed in the second recess 34, the heater 32 is disposed on the heat storage member 33, and the heat insulation board 31 is further disposed on the heater 32.

The heat insulating board 31 is formed so that the thickness thereof is greater than the thickness of the lid main body 30 in the portion where the second recess 34 is formed.
The heater 32 is electrically connected to a plug connection portion 26 provided on the front surface of the box body 2, and converts electric energy obtained from the power plug 7 connected to the plug connection portion 26 into heat energy.
The heat storage member 33 is in contact with the heater 32 to store heat energy released from the heater 32 and to keep the storage unit 20 warm with the heat energy obtained from the heater 32.

A locking portion 35 is provided on the front surface of the lid portion 3. The locking part 35 is configured to be locked to a locked part 25 formed on the upper side of the side wall part 21 located on the front side of the box body 2.
The lid 3 is attached to the box body 2 so that the opening 28 of the box body 2 can be opened and closed by a hinge member (not shown) attached to the back side.

Each of the plurality of heaters 4 is connected in series and is electrically connected to the plug connection portion 26.
The plurality of heaters 4 are arranged in a heater arrangement portion 24 formed inside the side wall portion 21. The plurality of heaters 4 convert electric energy obtained from the power plug 7 connected to the plug connection portion 26 into heat energy in the heater arrangement portion 24.
In the present embodiment, the heater 4 is composed of a sheet heating element formed in a sheet shape.

  The plurality of heat storage members 5 are formed in a rectangular plate shape that can be attached to and detached from the attaching / detaching portion 23. The heat storage member 5 is attached to the attachment / detachment portion 23, thereby abutting against the heater 4 disposed in the heater placement portion 24 and storing heat energy released from the heater 4. Then, the storage unit 20 is kept warm with the thermal energy obtained from the heater 4.

  As the heat storage member, for example, a material in which a heat conductor such as aluminum foil is accommodated in a bag formed of a heat-resistant and electrically insulating synthetic resin sheet such as polyethylene, polypropylene, or nylon is used. .

  The aluminum sheet 6 a is disposed so as to cover the inner wall surface 21 a of the side wall portion 21. Moreover, the aluminum sheet 6b is arrange | positioned so that the upper surface 22a of the bottom part 22 may be covered. The aluminum sheets 6a and 6b absorb the heat energy released from the heat storage member 5 inserted into the detachable portion 23 and keep the storage portion 20 warm.

  The power plug 7 is detachably formed on the plug connection portion 26. In the present embodiment, a magnetic plug is provided at the tip of the power plug 7 and is detachably attached to the plug connection portion 26 by a magnetic force.

Next, the heat storage box 10 capable of simultaneously storing heat in the plurality of heat storage members 5 will be described.
FIG. 5 is a perspective view showing a heat storage box 10 capable of simultaneously storing heat in the plurality of heat storage members 5 according to the first embodiment.
As shown in FIG. 5, the heat storage box 10 includes a substantially rectangular parallelepiped body portion 11 formed of a heat insulating member and a power plug 12 connected to a predetermined power source.
The main body 11 includes a plurality of insertion portions 13 into which a plurality of heat storage members 5 can be inserted, a plurality of electric heaters (not shown) arranged in the vertical direction of the plurality of insertion portions 13, and a plurality of A switch unit 14 and a plurality of lamp units 15 are provided.

The some insertion part 13 is provided in the front 11a side of the main-body part 11, and is formed so that the thermal storage member 5 can be inserted in a horizontal direction.
The plurality of electric heaters are arranged in the vertical direction of the insertion part 13, and are arranged so as to contact the heat storage member 5 attached to the insertion part 13. Each of the plurality of electric heaters is connected in series. Further, the plurality of electric heaters are connected to the power plug 12 and convert electric energy obtained by a current supplied from a predetermined power source into heat energy.

  The plurality of switch portions 14 are configured such that, when pressed, a current flows through the electric heater for a predetermined time. That is, by pressing the plurality of switch portions 14, a current flows through the electric heater, and electric energy is converted into heat energy by the electric heater. And when the electric heater generates heat, heat transfer to the heat storage member 5 is started.

  The lamp unit 15 is configured to be turned on when the switch unit 14 is pressed (starting heat storage), and is turned off when heat storage to the heat storage member 5 is completed after a predetermined time has elapsed.

  By using the heat storage box 10, heat can be stored in the plurality of heat storage members 5 in advance.

Next, the operation of the heat retaining box 1 according to the first embodiment of the present invention will be described.
First, the courier inserts the heat storage member 5 and the heat storage member 33 to be used into the heat storage box 10 and stores the heat storage member 5 and the heat storage member 33 in advance. Specifically, the delivery person inserts the plurality of heat storage members 5 and the heat storage members 33 into the plurality of insertion portions 13 provided in the heat storage box 10, respectively. And the switch part 14 of the insertion part 13 in which the thermal storage member 5 and the thermal storage member 33 were inserted is pressed, and thermal storage is started. At this time, the courier confirms that the heat storage member 5 and the heat storage member 33 are stored by turning on the lamp portion 15 of the insertion portion 13 into which the heat storage member 5 and the heat storage member 33 are inserted.

  When the lamp unit 15 is turned off and the heat storage to the heat storage member 5 and the heat storage member 33 is completed, the courier then inserts the heat storage member 5 into the attachment / detachment unit 23 and places the heat storage member 5 in the first recess 27 to store the heat storage member. 33 is disposed in the second recess 34. After the delivery person inserts the heat storage member 5 into the attaching / detaching portion 23, the delivery person next connects the power plug 7 of the heat retaining box 1 to the power source (for example, battery) of the delivery vehicle.

  Here, when the delivery person connects the power plug 7 to the power supply of the delivery vehicle, a current flows through the heater 4 and the heater 32. When a current flows through the heater 4 and the heater 32, the heater 4 and the heater 32 convert electric energy obtained from the current into heat energy. When the heater 4 and the heater 32 generate heat by heat energy, the heat energy is transferred to the heat storage member 5 that contacts the heater 4 and the heat storage member 33 that contacts the heater 32.

  When heat energy is transferred to the heat storage member 5 and the heat storage member 33, the heat energy is further stored in the heat storage member 5 and the heat storage member 33, and the temperatures of the heat storage member 5 and the heat storage member 33 rise. Thereby, this heat energy is transferred to the aluminum sheet 6. When heat energy is transferred to the aluminum sheet 6, the aluminum sheet 6 keeps the entire storage unit 20 warm.

  The detachable part 23 is formed closer to the storage part 20 than the center of the side wall part 21 in the thickness direction. Therefore, the side wall part 21 in which the detachable part 23 is formed has an inner wall side thinner than an outer wall side. Thereby, for example, when the heater 4 or the like generates heat, the storage unit 20 is kept warm, but the amount of heat of the heater is prevented from being released to the outside.

Before, during or after the storage unit 20 is kept warm, the courier opens the lid 3 of the heat retention box 1 and stores the food and drink in the storage unit 20.
When the food and drink are stored in the storage unit 20, the delivery person closes the lid 3 and locks the locking portion 35 provided on the lid 3 to the locked portion 25 of the box body 2.

  Thereby, the storage part 20 is heat-retained by the heat storage member 5, the heater 4, etc. inside the storage part 20 in the state sealed from the exterior.

According to the heat retaining box 1 according to the first embodiment having the above-described configuration, for example, the following effects can be obtained.
The heat retaining box 1 according to the first embodiment includes a heat storage member 5 that is detachably attached to an attachment / detachment portion 23 provided on a side wall portion 21 formed of a heat insulating member. Therefore, the heat storage member 5 can be taken out and stored in advance as required. Thereby, the heat storage member 5 can be inserted according to delivery time, for example. As a result, useless heat dissipation of the heat storage member 5 can be prevented, and heat insulation can be performed efficiently.

  Moreover, the heat insulation box 1 which concerns on 1st Embodiment delivers to home, storing the heat storage member 5 with the heater 4 provided in the heat insulation box 1. As shown in FIG. Therefore, for example, in delivery to a distant place, it is possible to prevent a large amount of heat from being released from the heat storage member 5 and cool food and drink delivered to the home.

  In addition, since the delivery is performed while keeping the temperature, the home delivery person does not need to reheat the delivered food and drink to reheat it. Thereby, for example, energy consumption caused by reheating or the like can be suppressed.

  In the first embodiment, the detachable portion 23 is formed closer to the storage portion 20 than the center of the side wall portion 21 in the thickness direction. Therefore, the thickness of the inner wall side (the storage part 20 side of the side wall part 21 where the detachable part 23 is formed) is opposite to the outer wall side (centering on the detachable part 23 and the inner wall side) of the side wall part 21 where the detachable part 23 is formed. Side)). As a result, the temperature of the heater 4 can be raised to raise the storage portion 20 to a high temperature.

  Moreover, the heat insulation box 1 which concerns on 1st Embodiment has covered the accommodating part 20 with the aluminum sheets 6a and 6b. Therefore, for example, the release of heat energy transferred from the heat storage member 5 can be made uniform. Thereby, the storage unit 20 can be kept warm. As a result, it is possible to efficiently keep warm objects to be stored in the storage unit 20.

  Moreover, the 1st recessed part 27 which can accommodate the heater 4 and the thermal storage member 5 is formed in the bottom part of the box main body which concerns on this embodiment. Thereby, the heater 4 and the heat storage member 5 can be accommodated with a simple configuration.

  Moreover, the heat storage member 5 which concerns on 1st Embodiment is comprised so that heat storage is possible using the heat storage box 10 which can thermally store the some heat storage member 5 simultaneously. Therefore, the heat insulation box 1 can reduce the running cost as a whole, for example, by storing heat of the heat storage member 5 in the night time zone when the unit price of power is low.

[Second Embodiment]
Next, a heat retaining box 1A according to a second embodiment of the present invention will be described with reference to FIGS.
FIG. 6 is a perspective view showing a heat retaining box 1A according to the second embodiment of the present invention with a part cut away. FIG. 7 is a cross-sectional view taken along the line B-B showing the heat retaining box 1 </ b> A shown in FIG. 6 with the lid 3 closed.

  As shown in FIGS. 6 and 7, the heat retaining box 1 </ b> A according to the second embodiment is similar to the first embodiment in that the heater 4 is disposed on the inner wall surface 21 a side of the side wall portion 21 with respect to the heat storage member 5. It differs from the heat insulation box 1 concerned. Therefore, in 2nd Embodiment, it demonstrates centering on a different point from 1st Embodiment.

  In addition, in 2nd Embodiment, about the thing of the structure similar to the heat retention box 1 which concerns on 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted. In the second embodiment, the same configuration as that of the first embodiment has the same effect as that of the first embodiment.

  As shown in FIGS. 6 and 7, the heat retaining box 1A according to the second embodiment includes a rectangular box-shaped box body 2A having an opening 28 on the upper surface, and a lid 3 for opening and closing the opening 28 of the box body 2A. A plurality of heaters 4 as heating elements provided in the box body 2A, a plurality of heat storage members 5 that can be attached to and detached from the box body 2A, a plurality of aluminum sheets 6a and 6b as heat conducting members, and a plurality of heaters 4 And a power plug 7 for connecting to a power source for supplying power.

  As shown in FIG. 6, the box body 2 </ b> A includes a storage unit 20 that communicates with the opening 28 and can store food and drink, a side wall 21 </ b> A that is located on all sides of the box body 2 </ b> A so as to surround the storage unit 20, And a bottom portion 22 located below the portion 20.

As shown in FIG. 7, the side wall portion 21 </ b> A includes an attaching / detaching portion 23 that can attach / detach the heat storage member 5, and a heater arranging portion 24 </ b> A that can arrange the heater 4.
The heater arrangement portion 24A is formed in a hollow shape substantially the same shape as the heater 4 inside the side wall portion 21A. The heater placement portion 24A is formed adjacent to the detachable portion 23 provided inside the side wall portion 21A. Specifically, the heater placement portion 24A is formed so that the heat storage member 5 attached to the attachment / detachment portion 23 and the heater 4 placed in the heater placement portion 24A come into contact with each other. In the second embodiment, the heater arrangement portion 24 is formed on the storage portion 20 side (inner wall surface 21 a side) of the side wall portion 21 with respect to the attachment / detachment portion 23.

According to the heat retaining box 1A according to the second embodiment having the above-described configuration, for example, the following effects can be obtained.
In the heat retaining box 1 </ b> A according to the second embodiment, the heater 4 is disposed on the inner wall surface 21 a side of the side wall portion 21 with respect to the heat storage member 5. Therefore, it is possible to keep the object to be kept warm by the heater 4 in the vicinity of the object to be kept. As a result, it is possible to efficiently insulate the object to be insulated. Moreover, the storage unit 20 can be heated to a higher temperature.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned above. The invention described in the embodiment of the present invention only lists the most suitable effects resulting from the present invention, and the effects of the present invention are not limited to those described in the embodiment of the present invention.

  For example, in the present embodiment, the heat insulation box 1 or 1A has been described as the heat insulation container, but the present invention is not limited to this. You may use a heat storage container for a sleeping bag, a greenhouse for gardening, etc., for example. That is, the heat storage container can be used for storing various types of objects to be warmed.

  In the present embodiment, the planar heating element is used as the heating element. However, the present invention is not limited to this. For example, the heating element may be heated using a heating element such as a heating coil. Moreover, you may control heat_generation | fever and heat absorption using a Beltier element.

  In the present embodiment, the electric energy sent to the heater is supplied from the battery of a vehicle such as a motorcycle. However, the present invention is not limited to this. The electrical energy sent to the heater may be configured, for example, by providing a solar panel on the lid 3 or the like and supplying the electrical energy obtained by solar power generation to the heater.

  In the present embodiment, the heater 4 and the heat storage member 5 are brought into contact with each other. However, the present invention is not limited to this. For example, a heat transfer member such as an aluminum plate may be interposed between the heater 4 and the heat storage member 5. By interposing the aluminum plate, the heat from the heater 4 can be uniformly transmitted to the heat storage member 5.

1, 1A Insulation box (Insulation container)
2 Box body 3 Lid 4 Heater (heating element)
5 Heat storage member 6 Aluminum sheet (heat conduction member)
DESCRIPTION OF SYMBOLS 10 Heat storage box 20 Storage part 21 Side wall part 22 Bottom part 23 Detachment part 24 Heater arrangement part 27 1st recessed part 34 2nd recessed part

Claims (6)

A heat insulating member disposed so as to surround a storage unit capable of storing a heat-insulated object;
A heating element provided in the heat insulating member for converting electrical energy into thermal energy;
A heat storage member that is detachably attached to the heat insulating member, and stores the thermal energy converted from the electric energy by the heating element;
Insulated storage device.   The heat insulation container according to claim 1, further comprising a heat conduction member disposed on the storage unit side of the heat storage member. The heat insulating member includes an attaching / detaching portion to which the heat storage member can be attached and detached,
The heat retaining container according to claim 1 or 2, wherein the detachable part is formed closer to the storage part than the center in the thickness direction of the heat insulating member.   The heat storage container according to any one of claims 1 to 3, wherein the heat storage member is disposed on the storage unit side of the heating element. The heat insulating member has a recess in which the heat storage member can be disposed,
The heat storage container according to claim 4, wherein the heat storage member is disposed in the recess.   The heat-retaining container according to any one of claims 1 to 3, wherein the heating element is disposed on the storage unit side of the heat storage member.

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