JPH03121008A - Heat insulation container - Google Patents

Abstract

PURPOSE:To obtain a heat insulation container having a miniature container body without the necessity of a wide space for storing a battery by using a paper-like battery which energizes a heater incorporated around an inner tank for storing a thing to be kept in a hot condition, and by incorporating the paper-like battery around the inner tank. CONSTITUTION:Charge and discharge change-over switches 9a, 9b are turned to the charge side A, and charge terminals 11a, 11b are connected to an external power source 15 in order to charge paper-like secondary batteries 7a, 7b, 7c, 7d. Thereafter, an upper body part 1a is removed from a lower body part 1b, and then coffee 2 is filled in an inner tank 3, and then the upper body 1a is fitted on the lower body part 1b. The charge and discharge change-over switches 9a, 9b are turned to the discharge B side with the coffee 2 being held in the inner tank 3. The paper-like secondary batteries 7a, 7b, 7c, 7d energize heaters 5a, 5b which therefore generate heat for keeping the temperature of the coffee 2 in the inner tank.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a heat-insulating container, and more specifically, the present invention relates to a heat-insulating container, and more specifically, a heater arranged around an inner tank that stores objects to be kept warm is heated by a battery built into the container body. The present invention relates to a heat-insulating container for keeping objects to be kept warm.

[Prior art] Conventional thermal containers have an inner tank inside the container body that stores items to be kept warm, such as hot coffee or boxed lunches, made of a heat insulating material to prevent heat from escaping from the items to be kept warm. was prevented. However, in a heat-insulating container having such a structure, the temperature of the object to be kept warm decreases over time, and the object becomes cold.

Therefore, for example, as disclosed in Japanese Patent Application Laid-Open No. 53-102167, a heater is arranged around the inner tank, and the heater is heated by a battery built in the container body.
A heat-retaining container has been proposed that has a structure that heats and keeps the object to be kept warm inside.

[Problems to be Solved by the Invention] However, such a heat-insulating container requires a large space to accommodate the batteries, resulting in a large container body.

Another problem was the increase in weight due to the weight of the battery.

The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a heat-insulating container having a small container body, and furthermore, to provide a lightweight heat-insulating container.

[Means for Solving the Problems] In order to achieve this object, the heat-retaining container of the present invention includes a container body having an inner tank for storing an object to be kept warm;
The container body includes a heater disposed around the inner tank, and a paper battery connected to the heater and built in the container body around the inner tank.

[Function] The paper battery heats the heater. Heat from the heater is transmitted to the inner tank containing the object to be kept warm, and the object to be kept warm is kept warm.

[Example] Hereinafter, an example embodying the present invention will be described with reference to the drawings.

First, the structure of the heat-retaining container 1 of this embodiment will be explained with reference to FIG.

The heat-retaining container 1 is composed of a cylindrical upper body 1a and a lower body 1b, and the upper body 1a is engaged to cover the upper opening of the lower body 1b. Lower body 1
b has an inner tank 3 for storing an object to be kept warm (in this case, hot coffee 2). A heater 5a is arranged inside the lower body lb so as to surround the inner tank 3.

Further, a vapor secondary battery 7a, which is a cylindrical paper battery, is built in the lower body 1b and is shaped along the side surface shape of the lower body 1b. A circular vapor secondary battery 7b is built-in. The vapor secondary battery 7a and the vapor secondary battery 7b are connected by a lead wire 8a, and the vapor secondary battery 7a is connected to the heater 5a via a charge/discharge switch 9a provided on the outer surface of the lower main body 1b. has been done. A heat insulating material 13a is sandwiched between the vapor secondary batteries 7a, 7b and the heater 5a to prevent heat from the heater 5a from being transmitted to the vapor secondary batteries 7a, 7b.

Further, a charging terminal 11a is drawn out from the vapor secondary battery 7a toward the outer surface of the lower main body 1b.

Also in the upper main body 1a, the heater 5b has a similar configuration.
, a cylindrical vapor secondary battery 7c, a circular vapor secondary battery 7d, a lead wire 8b, a charging/discharging switch 9b, a charging terminal 11b1, and a heat insulating material 13b are provided, respectively.

Next, the operation will be explained using FIGS. 1 and 2.

Set the charging/discharging switch 9a, 9b to the "charging side", that is, the second
Switch to the A side shown by the dashed line in the figure, connect the charging terminals 11a and llb to the external power supply 15, and charge the vapor secondary batteries 7a, 7b, 7c, and 7d.

After that, remove the upper main body 1a from the lower main body 1b and remove the inner tank 3.
Pour coffee 2 into the cup and place the upper body 1a over the lower body 1b.

With the coffee 2 in the inner tank 3, the charging/discharging switches 9a and 9b are switched to the "discharge side", that is, to the B side shown by the solid line in FIG. 2. Vapor secondary batteries 7a, 7b, 7c
, 7d heats the heaters 5a and 5b,
The heat keeps the coffee 2 in the inner tank 3 warm.

As described above, in the heat-insulating container 1 of this embodiment, inside the container body,
A heater 5 placed around the inner tank 3 that stores the coffee 2
Vapor secondary batteries 7a, 7 are used as batteries for heating a, 5b.
b, 7c, and 7d, and the vapor secondary battery 7a,
Since 7b, 7c, and 7d are built in around the inner tank 3, it is possible to provide a heat insulating container having a small container main body without requiring a large space to house the batteries.

Furthermore, since the battery rechargeable batteries 7a, 7b, 7c, and 7d are lighter than conventional batteries, a lightweight heat-insulating container can be provided.

It should be noted that the present invention is not limited to this embodiment, and can be modified as follows without departing from the spirit thereof.

(1) The item to be kept warm can be used not only for coffee but also for any hot item such as a lunch box.
It can also be used to heat cold things to make them warm.

(2) The vapor secondary battery may be used by incorporating only a part around the inner tank, for example, only 7b in this embodiment.

(3) In this embodiment, a vapor secondary battery was used as the paper battery, but a vapor primary battery may be used to make the heat insulating container disposable.

(4) The shape of the heat-insulating container may be other than that in this embodiment, such as a bottle shape or a can shape.

[Effects of the Invention] As is clear from the detailed description above, according to the present invention, a paper battery is used as a battery for heating a heater built into the container body around the inner tank that stores the object to be kept warm. , and because the paper storage battery is built in around the inner tank, it is possible to provide a heat insulating container having a small container main body without requiring a large space to house the battery.

Furthermore, since paper batteries are lighter than conventional batteries, a lightweight heat-insulating container can be provided.

[Brief explanation of drawings]

1 to 2 show embodiments embodying the present invention. FIG. 1 is a cross-sectional front view showing a cross section of a heat-insulating container embodying the present invention, and FIG. FIG. 2 is a simplified circuit diagram showing the electrical system used in the heat-insulating container. In the figure, 1 is a heat insulating container, 1a is an upper main body, 1b is a lower main body, 2 is coffee, 3 is an inner tank, 5 is a heater, 7 is a vapor 2
Next battery.

Claims (1)

[Scope of Claims] 1. A container body having an inner tank therein for storing an object to be kept warm; a heater disposed in the container body around the inner tank; A heat-retaining container comprising a paper battery built into the container body around the inner tank.