JP6528892B1 - Heat insulation container - Google Patents

Abstract

An object of the present invention is to provide a heat preservation container in which a user can arbitrarily set a temperature optimum for heat retention of a heat retention object. A heat insulation container (1) having a heat storage agent and keeping an object to be kept warm with the heat storage agent, wherein a vacuum heat insulating layer (13) is provided between an outer surface (11) and an inner surface (12) The case 10 and the inner surface 12 of the case 10 are provided inside, the cross section is formed in a concave shape, and the container body 20 in which the heat retention object is accommodated, between the case 10 and the container body 20 And a container opening / closing unit 60 for opening or closing the opening of the container main body 20 and the opening of the heat storage agent storage unit 30. [Selected figure] Figure 2

Description

  The present invention relates to a heat retaining container provided with a heat storage agent.

  Conventionally, for the purpose of holding a heat retaining object such as a beverage or food for a long time at a desired temperature, a heat retaining container in which a heat storage agent is filled in a gap provided between a vacuum heat insulating layer and a storage container is proposed. (See, for example, Patent Document 1).

Japanese Utility Model Publication 62-21253

  In the heat insulating container using the heat storage agent, the temperature at which the object to be heated is kept warm is controlled by the melting temperature of the heat storage agent. The above-described heat insulation container is filled with one kind of heat storage agent suitable for a specific heat insulation object, and therefore, the user can only heat the heat insulation object at the temperature specified in the specification of the heat insulation container. The However, since the temperature suitable for heat retention differs depending on the heat retention target, depending on the heat retention target, the heat retention may not be performed at the optimum temperature.

  An object of the present invention is to provide a heat insulation container in which a user can arbitrarily set a temperature optimum for heat insulation of a heat insulation object.

  The present invention solves the problem by the following solutions. In addition, in order to make an understanding easy, although the code | symbol corresponding to embodiment of this invention is attached and demonstrated, it is not limited to this. Further, the configuration described with reference to the reference numerals may be appropriately improved, and at least a portion may be replaced with another configuration.

  The first invention is a heat insulation container which has a heat storage agent and keeps an object to be kept warm with the heat storage agent, and a vacuum heat insulating layer (13) is provided between the outer surface (11) and the inner surface (12). A container (10) provided with a concave cross section, and a container main body (20) provided inside the inner surface of the housing, having a concave cross section, and containing the heat retention object A heat storage agent storage portion (30) provided between the housing and the container body for storing the heat storage agent in a removable manner; an opening (23) of the container body and an opening of the heat storage agent storage portion And a container opening / closing part (60) for opening or closing the part (31).

  A second invention is a heat insulation container according to the first invention, comprising: a heat storage agent holding body (50) for holding a predetermined amount of the heat storage agent therein, and the heat storage agent storage portion comprises one or more The heat storage agent holding body is accommodated.

  A third aspect of the invention is the heat retention container according to the first or second aspect, wherein the heat storage agent storage unit connects the inside of the housing and the outside of the container body, and the container body And a support member (40) for supporting the

  A fourth aspect of the invention is the heat retention container according to any of the first to third aspects, wherein the container opening and closing part is in the container main body in a state where the opening of the heat storage agent storage part is closed. It has a lid (65) that opens only the opening.

  According to the present invention, it is possible to provide a heat retaining container in which the user can arbitrarily set the temperature optimum for heat retaining the heat retaining object.

It is a perspective view which shows the whole structure of the heat retention container 1 which concerns on 1st Embodiment. FIG. 2 is a cross-sectional view of the heat insulation container 1; FIG. 2 is an exploded cross-sectional view of the heat insulation container 1; (A) and (B) is a perspective view which shows the use form of the thermal storage agent holding body 50. FIG. (A) and (B) is a figure explaining the mounting | wearing method of the thermal storage agent holding body 50 in the heat retention container 1. FIG. (A)-(C) is a sectional view showing each composition of container opening and closing parts 60A-60C in a 2nd embodiment. It is a sectional view of heat retention container 1A of a 3rd embodiment.

Hereinafter, an embodiment of a heat retention container concerning the present invention is described.
Each drawing attached to the present specification is a schematic view or a conceptual view, and in consideration of ease of understanding, the shape, scale, aspect ratio, etc. of each part are appropriately changed or exaggerated from the real thing ing. The numerical values, shapes, material names, and the like described in the present specification are merely examples of the embodiment, and the present invention is not limited thereto, and may be appropriately selected and used.
Moreover, in each drawing, the hatching which shows the cross section of a member is abbreviate | omitted.

  In the following description, the width direction of the heat retention container 1 is taken as the X direction. The whole of the heat insulation container 1 of the present embodiment has a cylindrical shape, so the width direction corresponds to the radial direction. Further, the vertical direction orthogonal to the X direction is taken as the Y direction. For convenience of explanation, in order to make the X direction the horizontal direction, the Y direction which is the vertical direction is the vertical direction. In the Y direction, the upper direction is the Y1 direction, and the lower direction is the Y2 direction. In the present specification, "direction" is also referred to as "side" as appropriate.

First Embodiment
FIG. 1 is a perspective view showing the entire configuration of the heat insulation container 1 according to the first embodiment.
FIG. 2 is a cross-sectional view of the heat insulation container 1.
FIG. 3 is an exploded cross-sectional view of the heat insulation container 1.
FIG.2 and FIG.3 is sectional drawing when the center of the radial direction of the heat retention container 1 is cut | disconnected by a surface parallel to XY surface.

As shown in FIG.1 and FIG.2, the heat retention container 1 of 1st Embodiment is the housing | casing 10, the container main body 20, the thermal storage agent storage part 30, the supporting member 40, the thermal storage agent holding body 50 (refer FIG. 4, FIG. 5). And a container opening / closing unit 60.
The heat retention container 1 of the present embodiment is a portable heat retention container in which a beverage such as tea or coffee is a heat retention object. The heat insulation container 1 of this embodiment is formed so that the whole may become cylindrical shape.

<Case 10>
The housing 10 is a member disposed on the outermost side of the heat insulation container 1, and as shown in FIG. 2, the cross section parallel to the XY plane is formed in a concave shape.
The housing 10 is provided with a vacuum heat insulating layer 13 between the outer surface 11 and the inner surface 12. The vacuum heat insulating layer 13 is a layer filled with a gas at a pressure lower than the atmospheric pressure. The vacuum heat insulating layer 13 is in communication with the side surface in the radial direction (X direction) of the housing 10 and the bottom surface on the lower side (Y2 side) of the housing 10. That is, the vacuum heat insulating layer 13 is formed to have a concave shape in the housing 10 except for the container opening / closing portion 60 side. The housing 10 is formed of, for example, a metal member such as aluminum or stainless steel.

  Further, as shown in FIG. 3, on the outer surface 11 of the housing 10, a screw portion 11 s is provided at an end portion on the upper side (Y 1 side). The screw portion 11s is a male screw engaged with a screw portion 61s of a container opening / closing unit 60 (opening / closing unit main body 61) described later. In the present embodiment, the screw portion 11s and the screw portion 61s are reverse screws. Therefore, the container opening / closing unit 60 is attached to the housing 10 by rotating it counterclockwise. When the lid 65 of the container opening / closing unit 60 is rotated counterclockwise and removed, the container opening / closing unit is prevented from rotating together and becoming loose. The screw portion 11s and the screw portion 61s may be positive screws similarly to the screw portion 62s (lid attachment portion 62) and the screw portion 65s (lid 65) described later.

<Container body 20>
The container main body 20 is a member provided inside the inner surface 12 of the housing 10, and as shown in FIG. 2, is formed so that a cross section parallel to the XY plane has a concave shape. Inside the container main body 20, an object to be heated (not shown) such as tea or coffee is accommodated. The outer diameter of the container body 20 is smaller than the inner diameter of the housing 10, and a gap g1 is formed between the inner surface 12 of the housing 10 and the outer surface 22 of the container body 20. A heat storage agent storage unit 30 (described later) is provided in the space of the gap g1.
The container main body 20 is formed of, for example, a metal member such as aluminum or stainless steel as in the case 10.

  The container body 20 is supported by a support member 40 inside the housing 10. The support member 40 is a member that connects the bottom surface 14 of the housing 10 and the bottom surface 21 of the container main body 20. By supporting the container body 20 by the support member 40, a gap g2 is formed between the bottom surface 14 of the housing 10 and the bottom surface 21 of the container body 20. In the heat insulating container 1 of the present embodiment, the heat storage agent is not disposed in the space of the gap g2, but when the support member 40 is disposed on the side surface of the container main body 20 as in the modified embodiment (described later) The heat storage agent holder 50 can be arranged. In this embodiment, as shown in FIG. 2, an example in which two support members 40 are provided along the radial direction (X direction) of the housing 10 is shown, but the position and number of the support members 40 are appropriately Set to

<Heat storage agent storage unit 30>
The heat storage agent storage unit 30 is a cylindrical space provided between the housing 10 and the container main body 20 as shown in FIG. 2 or 3. The heat storage agent holder 50 is removably stored in the heat storage agent storage unit 30. Although the heat storage agent holding body 50 is not illustrated in FIGS. 1 to 3, as shown in FIG. 5, one or more heat storage agent holding bodies 50 are stored inside the heat storage agent storage unit 30. The configuration of the heat storage agent holder 50 will be described later.

<Container opening / closing unit 60>
The container opening / closing unit 60 is a member that opens or closes the opening 23 of the container body 20 and the opening 31 of the heat storage agent storage unit 30, as shown in FIG. 3. The container opening / closing unit 60 includes an opening / closing unit main body 61 and a lid 65. Each part which comprises the container opening-closing part 60 may be formed with a metal member similarly to the housing | casing 10, and may be formed with resin materials, such as a plastics.
The opening / closing part main body 61 is a member that is detachably attached to the housing 10, and is formed to have a substantially convex cross section. In the opening / closing portion main body 61, a screw portion 61s is provided on the inner peripheral surface on the Y2 side which is the back surface side. The screw portion 61 s is a female screw that engages with the screw portion 11 s provided in the housing 10.

  As described above, the screw portion 11s and the screw portion 61s are reverse screws. Therefore, by rotating the opening / closing unit main body 61 so that the screw portion 61s of the opening / closing unit main body 61 engages with the screw portion 11s of the housing 10 in the counterclockwise direction, the opening / closing unit main body 61 It can be attached. By attaching the opening / closing part main body 61 to the housing 10, as shown in FIG. 2, the opening 23 of the container main body 20 and the opening 31 of the heat storage agent storage part 30 are closed. Further, by removing the opening / closing part main body 61 from the housing 10, as shown in FIG. 3, the opening 23 of the container main body 20 and the opening 31 of the heat storage agent storage part 30 are opened.

  As shown in FIG. 3, a lid attaching portion 62 is provided at the center of the opening / closing portion main body 61. The lid attachment portion 62 is a member to which a lid 65 (described later) is attached. In addition, the lid attachment portion 62 has a function of communicating between the inside of the container body 20 and the outside of the container opening / closing unit 60 in a state where the container opening / closing unit 60 is attached to the housing 10. A communication hole 63 is provided in the lid attachment portion 62. The object to be kept warm in the container body 20 is discharged to the outside from the communication hole 63 provided in the lid attachment portion 62. A screw portion 62 s is provided on the outer peripheral surface on the upper side (Y 1 side) of the lid attachment portion 62. The screw portion 62s is an external thread engaged with the screw portion 65s of the lid 65.

  The lid 65 is a member detachably attached to the lid attachment portion 62 (opening / closing portion main body 61). A threaded portion 65 s is provided on the inner peripheral surface on the Y 2 side which is the back surface side of the lid 65. The screw portion 65s is a female screw engaged with the screw portion 62s provided on the lid attachment portion 62 (opening / closing portion main body 61). In the present embodiment, the screw portion 62s and the screw portion 65s are positive screws. Therefore, the lid 65 is attached to the lid attachment portion 62 (container opening and closing portion 60) by rotating it clockwise.

  As described above, since the screw portion 11s of the housing 10 and the screw portion 61s of the container opening / closing unit 60 are reverse screws, the opening / closing unit main body 61 is closed when the lid 65 is rotated counterclockwise and removed. There is no loosening around. In the state where the opening / closing part main body 61 is attached to the housing 10, the communication hole 63 is closed by attaching the lid 65 to the lid attachment part 62, so the object to be kept warm in the container body 20 Held inside the Further, when the lid 65 is removed from the lid attachment portion 62, the communication hole 63 is opened in a state in which the opening 31 of the heat storage agent storage portion 30 is closed. It can be discharged out of the heat retention container 1 without contacting with the heat storage agent holding body 50 stored in 30.

<Heat storage agent>
The heat storage agent is a substance that stores heat when phase change due to heating and releases the stored heat when phase change due to cooling. As a heat storage agent, a latent heat storage agent can be used, for example. A latent heat storage agent is a substance that stores heat using latent heat that enters and exits when the substance changes in phase. The latent heat storage agent keeps storing heat in a specific temperature range, and the phase change from solid to liquid or liquid to solid is exceeded when the temperature range is exceeded.

  As the latent heat storage agent, for example, substances such as barium hydroxide, stearic acid, and sodium acetate trihydrate can be used. The holding temperature by the heat storage agent (the temperature at which it is desired to keep the object to be kept warm) is adjusted by selecting the heat storage agent according to the melting temperature. For example, the melting temperature of barium hydroxide is about 80 to 85 ° C. In addition, the melting temperature of stearic acid is 65 to 70 ° C. The heat storage agent may be used as a mixture of two or more kinds so that the melting temperature as the phase transition point and the solidification temperature become the desired temperature. In addition, by adjusting the filling amount of the heat storage agent, it is possible to adjust the length of time during which the holding temperature can be maintained.

  When, for example, a solid latent heat storage agent having a melting temperature of 70 ° C. is heated as a heat storage agent, part of the heat generated by the heating is absorbed as heat of fusion until the latent heat storage agent melts and changes to a liquid. , Is stored in the latent heat storage agent. Therefore, for example, the hot water of 90 ° C. poured into the heat insulation container 1 is cooled in a short time, and becomes a temperature close to the melting temperature (70 ° C.) of the heat storage agent. After this, the amount of heat of the hot water stored in the heat insulation container 1 is gradually released to the outside as time passes. Along with this, the latent heat storage agent that has become liquid is cooled and gradually phase-changes to a solid. While the latent heat storage agent is cooled and undergoes a phase change from liquid to solid, a heat quantity corresponding to the stored heat of melting is released as the heat of solidification. The temperature of the hot water stored in the heat retention container 1 is maintained at about 70 ° C. by the heat of solidification released by the heat storage agent until the latent heat storage agent changes in phase from liquid to solid.

  The latent heat storage agent can maintain a specific temperature range, so that the temperature of the warm beverage can be kept higher than the external temperature, or the temperature of the cold beverage can be kept lower than the external temperature. In the present embodiment, although the former is described as an example, the use of the latent heat storage agent differs depending on the temperature range to be kept warm. In the former case, a latent heat storage agent capable of holding a temperature range of 10 ° C. or higher is used as a heat storage agent, and in the case of the latter, a temperature range of less than 10 ° C., particularly 5 ° C. or less, particularly 0 ° C. Latent heat storage agent is used. The same applies to sensible heat storage agents.

  When the warm beverage is kept at a constant temperature, a heat storage agent having a low melting temperature (for example, sodium sulfate · decahydrate having a melting temperature of 30 ° C.) is selected. And the kind of beverage stored in the heat retaining container 1, initial temperature (temperature immediately after putting the beverage at 100 ° C. in the heat retaining container 1 and closing the lid), holding temperature (temperature most suitable for drinking the beverage) Design so that the heat capacity calculated from the type of heat storage agent, initial temperature, melting temperature, solidification temperature, and volume is smaller than the heat release calculated from the volume, and the relative ratio of heat release and heat capacity Adjust to set the holding temperature. As a result, the heat storage agent does not easily fall to the melting temperature due to the excess heat amount that is the difference between the heat release amount of the beverage and the heat capacity of the heat storage agent, so the holding temperature is maintained in a temperature range higher than the melting temperature of the heat storage agent be able to.

Here, the relationship between the heat retention temperature and the filling amount of the heat storage agent will be described with reference to a specific example.
Table 1 below shows the filling amount of the heat storage agent necessary to keep the temperature at the holding temperature after storing the beverage as the sample in the heat insulating container 1. As a sample, three kinds of beverages, coffee, sencha, and gyokuro, were prepared. Each beverage has a weight of 500 g, an initial temperature of 100 ° C., and a specific heat of 4.217 kJ / (kg · K). When these beverages are actually produced, the initial temperature is not set to 100 ° C., but here, in order to unify the conditions, the initial temperature is set to 100 ° C.
In addition, sodium acetate water trihydrate (CH ₃ COONa 3 H ₂ O) was prepared as a heat storage agent. The sodium acetate hydrate trihydrate has a melting temperature of 43 ° C., a solidification temperature of 40 ° C., a heat storage amount of 177 kJ / kg, and a specific heat of 2.7 kJ / (kg · K). The initial temperature (use start temperature) as a heat storage agent is 25 ° C.

  As shown in Table 1, since the holding temperature of coffee and green tea is higher than the melting temperature (43 ° C.) of the heat storage agent, the heat capacity of the heat storage agent is reduced by reducing the volume of the heat storage agent. It can be smaller than the amount of heat. Therefore, the filling amount of the heat storage agent in the case of maintaining the temperature of coffee and green tea is relatively smaller than that of Gyokuro which has a small amount of heat release. On the other hand, since the holding temperature of bead dew is substantially the same as the melting temperature of the heat storage agent, the heat capacity of the heat storage agent can be made smaller than the amount of heat radiation of bead dew by increasing the volume of the heat storage agent. Therefore, the filling amount of the heat storage agent in the case of keeping the temperature of the dew is relatively larger than that of coffee and green tea.

  Since the heat storage agent holding body 50 described later is a packaged product of individual packaging in which the filling amount of the heat storage agent sealed in the packaging body 51 is different, when heat retaining coffee, the heat storage agent holding body 50 having a filling amount of 200 g You can load one. Further, in the case of keeping warm green tea, it is sufficient to load the heat storage agent holder 50 with a filling amount of 200 g and the heat storage agent holder 50 with a filling amount of 100 g, respectively. Furthermore, in the case of keeping the temperature of the dew drop, it is sufficient to load three heat storage agent holders 50 with a filling amount of 200 g. As described above, in the heat insulation container 1 of the present embodiment, by changing the filling amount of the heat storage agent according to the holding temperature of the heat insulation object, the heat insulation object can be kept at a temperature suitable for its type. it can.

<Heat storage agent holder 50>
Next, the configuration of the heat storage agent holding body 50 will be described.
FIGS. 4A and 4B are perspective views showing the usage of the heat storage agent holding body 50. FIG. In FIG. 4, the longitudinal direction of the heat storage agent holding body 50 is described as the vertical direction (Y direction).
The heat storage agent holding body 50 is a packaged product of an individual package in which the heat storage agent is enclosed. In the heat storage agent holding body 50, the heat storage agent is enclosed in a package 51 formed of plastic or the like. As shown to each figure of FIG. 4, the package 51 of the thermal storage agent holding body 50 is comprised by the cylindrical shape. The outer diameter D1 and the inner diameter D2 of the package 51 are set to dimensions that allow the package 51 to be stored in the gap g1 (see FIG. 2) of the heat storage agent storage unit 30. A slight gap may be generated between the heat storage agent holding body 50 and the heat storage agent storage unit 30. The heat insulating function of the vacuum heat insulating layer 13 outside the heat storage agent storage unit 30 warms the inside of the heat storage agent storage unit 30 with the passage of time, so that the heat storage agent holding body 50 can absorb sufficient heat.

  FIG. 4A shows the heat storage agent holding body 50A whose weight (filling amount) is set to 200 g. FIG. 4B shows the heat storage agent holding body 50B whose weight is set to 100 g. The heat storage agent holding body 50B shown in FIG. 4 (B) is stacked in the vertical direction of the heat storage agent storage portion 30 so that the filling amount of the same 200 g as the heat storage agent holding body 50A shown in FIG. 4 (A) It becomes. Also, by storing the heat storage agent holding body 50A shown in FIG. 4A and the heat storage agent holding body 50B shown in FIG. Amount. Thus, the filling amount of the heat storage agent can be adjusted in units of 100 g by appropriately combining the two types of heat storage agent holders 50A and 50B. The filling amount of the heat storage agent in one heat storage agent holder 50 may be set more finely, for example, between 10 and 50 g.

FIGS. 5A and 5B are diagrams for explaining the method of mounting the heat storage agent holding body 50 in the heat insulation container 1.
In order to store the heat storage agent holding body 50 in the heat storage agent storage unit 30 (housing 10), as shown in FIG. 5A, the container opening / closing unit 60 (not shown) is removed from the housing 10 The opening 31 of the storage unit 30 is opened. Then, the heat storage agent holding body 50 is inserted from the opening 31 of the heat storage agent storage unit 30. FIG. 5A shows an example in which two heat storage agent holders 50 are stacked in the vertical direction of the heat storage agent storage unit 30 and stored, but as described above, the number of the heat storage agent holders 50 to be stored is It is appropriately selected depending on the temperature to be kept warm.

  Next, as shown in FIG. 5B, the screw portion 11s of the housing 10 and the screw portion 61s of the opening / closing unit main body 61 (container opening / closing unit 60) are engaged, and the opening / closing unit main body 61 is turned counterclockwise. The container opening / closing unit 60 can be attached to the housing 10 by rotating the container at the position shown in FIG. The object to be warmed (not shown) can be poured into the interior of the container body 20 from the communication hole 63 by removing the lid 65 of the container opening / closing unit 60. Further, the object to be warmed may be poured into the inside of the container body 20 before the container opening / closing unit 60 is attached to the housing 10.

According to the heat insulating container 1 of the first embodiment described above, the user can select the filling amount of the heat storage agent appropriately according to the temperature holding temperature of the heat-retaining object and store it in the heat storage agent storage unit 30. Can optionally set the optimum temperature for keeping warm the object to be kept warm.
In the heat insulation container 1 of the first embodiment, the heat storage agent is enclosed in the heat storage agent holder 50, so the user measures the heat storage agent or puts it in the heat storage agent storage unit 30 using a tool. It will not require time and effort. Therefore, the user can easily change the filling amount of the heat storage agent.

In the heat retention container 1 of the first embodiment, the container main body 20 is supported by a support member 40 that connects between the bottom surface 14 of the housing 10 and the bottom surface 21 of the container main body 20. Therefore, the heat retention container 1 can hold the container main body 20 more stably inside the housing 10.
According to the heat insulation container 1 of the first embodiment, the container opening / closing unit 60 includes the lid 65 for opening the opening 23 of the container main body 20 in a state in which the opening 31 of the heat storage agent storage unit 30 is closed. Therefore, the heat retention container 1 can discharge the heat retention object stored in the container main body 20 out of the heat retention container 1 without contacting the heat storage agent holding body 50 stored in the heat storage material storage unit 30. it can.

Second Embodiment
The heat insulation container 1 of 2nd Embodiment differs in the structure of a container opening-closing part from 1st Embodiment. In the second embodiment, the other configuration is the same as that of the first embodiment. Therefore, in FIG. 6 (A)-(C), only container opening / closing part 60A-60C is shown in figure, and illustration of the whole heat retention container 1 is abbreviate | omitted. Further, in the description and the drawings of the second embodiment, the members equivalent to the first embodiment are denoted by the same reference numerals as the first embodiment, and the redundant description will be omitted.

6 (A) to 6 (C) are cross-sectional views showing each configuration of the container opening / closing parts 60A to 60C in the second embodiment.
As shown to FIG. 6 (A), 60 A of container opening / closing parts of a 1st structure are comprised so that the whole may function as a lid | cover.
As shown in FIG. 6B, the container opening / closing portion 60B of the second configuration includes a vacuum heat insulating layer 66 and a heat storage agent storage portion 67 inside. The heat storage agent holding body 50 (not shown) stored in the heat storage agent storage portion 67 is formed in a disk shape. The heat storage agent holding body 50 in the present embodiment may be detachably attached to the heat storage agent storage portion 67 or may be fixed inside the heat storage agent storage portion 67.

  As shown in FIG. 6C, the container opening / closing unit 60C of the third configuration includes a straw holding unit 68 that holds a straw ST at the center. The straw holding portion 68 is a sleeve-shaped component, and is mounted so as to penetrate in the vertical direction (Y direction) of the container opening / closing portion 60C. According to the container opening / closing portion 60C of the third configuration, the user can drink the object to be kept warm without opening the lid, so the effect of the heat retention by the heat storage agent holding body 50 (not shown) is further lengthened. It can maintain time. In addition, in the container opening / closing part 60C of the third configuration, instead of the straw holding part 68, an opening hole into which the straw ST can be inserted may be provided. The third configuration shown in FIG. 6C can also be applied to the first and second configurations described above.

Third Embodiment
The heat retention container 1A of the third embodiment is different from the first embodiment in that the pan 70 is accommodated as a heat retention object. Therefore, in the description and the drawings of the third embodiment, the same members as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and the redundant description will be omitted.
FIG. 7 is a cross-sectional view of the heat insulation container 1A of the third embodiment. The basic configuration of the heat insulation container 1A of the third embodiment is the same as that of the first embodiment. In the heat insulation container 1A of the third embodiment, the pan 70 is accommodated in the container main body 20 as an object to be heated. The pan 70 is a cooking tool made of metal such as iron, stainless steel, aluminum, copper or the like. The pan 70 is constituted by a pan body 71 and a lid 72. The outer diameter and height of the pot 70 are set to fit inside the container body 20. In the pan 70, for example, food such as curry and stew is stored as an object to be kept warm. The pan 70 heated in advance with a stove or the like is accommodated in the container body 20, and the container opening / closing portion 60 is attached to seal the inside of the heat insulation container 1A. It can be kept warm for a long time at the temperature required for cooking.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned above, A various deformation | transformation and change are possible like the modification mentioned later, These are also this invention Fall within the technical scope of Further, the effects described in the embodiments are only listing of the most preferable effects arising from the present invention, and are not limited to those described in the embodiments. In addition, although the above-mentioned embodiment and the below-mentioned modification can be combined suitably, and can also be used, detailed explanation is omitted.

(Modified form)
Although embodiment showed the example which made the shape of the heat insulation container 1 cylindrical as shown in FIG. 1, it is not limited to this. The heat insulation container 1 may have any shape as long as the heat storage agent storage unit 30 can be provided between the housing 10 and the container main body 20 for storing the heat storage agent in a removable manner. For example, the shape of the heat insulation container 1 may be a rectangular parallelepiped.

  Although embodiment showed the example which provides the supporting member 40 between the bottom face 14 of the housing | casing 10, and the bottom face 21 of the container main body 20 as shown in FIG. 2, it is not limited to this. The support member 40 may be provided between the inner surface 12 of the housing 10 and the side surface of the container body 20. In that case, the cylindrical heat storage agent holding body 50 may be divided according to the number of support members 40. For example, when the heat retaining container 1 is viewed from the vertical direction (Y direction), when the support members 40 are provided at three locations at equal intervals, the cylindrical heat storage agent holding body 50 may be divided into three.

In the embodiment, as the object to be kept, in addition to beverages such as tea and coffee, and foods such as curry and stew have been described as an example, the present invention is not limited thereto. The object to be kept warm may be anything as long as it is necessary to keep warm at a certain temperature. Further, the heat insulation container 1 is not limited to a container such as a single beverage or food, but may be a container in which a plurality of foodstuffs such as a lunch box are accommodated.
In addition, the heat retention container 1 of embodiment can be used as a general heat retention container called what is called a thermos bottle, if the heat storage agent holding body 50 is not put. Moreover, if a heat insulating material is put instead of the heat storage agent holding body 50, it can be used also as a heat retaining container with a good heat retaining property.

DESCRIPTION OF SYMBOLS 1, 1A Heat retention container 10 Housing | casing 11 Outer surface 12 Content surface 13 Vacuum heat insulation layer 20 Container main body 23 Opening part 30 Heat storage agent storage part 31 Opening part 40 Support member 50, 50A, 50B Heat storage agent holding body 51 Package 60 (60A , 60B, 60C) Container opening / closing part 61 Opening / closing part main body 62 lid mounting part 63 communication hole 65 lid

Claims (3)

It is a heat retention container which has a heat storage agent and which keeps the object to be kept warm with the heat storage agent,
A housing provided with a vacuum heat insulating layer between the outer surface and the inner surface and having a concave cross section;
A container body provided inside the inner surface of the housing, having a concave cross section, and containing the object to be warmed;
A heat storage agent storage unit which is provided between the housing and the container body and stores the heat storage agent in a removable manner;
A container opening / closing unit that opens or closes the opening of the container body and the opening of the heat storage agent storage unit;
Equipped with
The heat storage agent storing section, said connecting between the inner housing and the outer side of the container body, insulated container of Ru with a support member for supporting the container body. It is a heat insulation container of Claim 1, Comprising:
A heat storage agent holder for holding a predetermined amount of the heat storage agent inside;
The heat storage agent storage unit stores one or more heat storage agent holders.
Thermal container. It is a heat insulation container of Claim 1 or Claim 2 , Comprising:
The container opening / closing unit includes a lid that opens only the opening of the container body in a state in which the opening of the heat storage agent storage unit is closed.
Thermal container.

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