JPH019478Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a thermal storage cabinet for storing food and drinks used in places such as aircraft where there is no power source for electric heaters or where it is difficult to provide one.

(Prior Art) As a conventional device of this type, a heat-retaining device of a type in which a heating element is housed in a container having a peripheral wall constituted by a heat insulating wall has been proposed in Japanese Utility Model Publication No. 18986/1986.

(Problem that the invention aims to solve) However, with this product, it is difficult to keep the inside of the container at 65℃ or higher for a long time, where it is difficult for bacteria to grow, or to maintain a uniform temperature inside the container. It is not sufficient to be used as such.

(Means for Solving the Problems) The present invention was developed in view of the current situation, and a heat pipe panel is provided along the inner wall and bottom side wall of an insulated food storage. An electric heater that is electrically heated by an external power source is provided in a portion along the bottom wall surface of the panel, and a storage space for removably storing a heat storage device is provided in a portion along the bottom wall surface of the heat pipe panel.

(Function) To explain the function when the device of the present invention is used as a thermal storage for in-flight meals on an aircraft, the device is placed in pre-cooked food containers and stored inside the storage, and is installed on the ground as needed. An electric heater is connected to a power source and heated.

In this case, the electric heater is heated, and the inside of the refrigerator is quickly heated through the heat pipe panel. Immediately before loading onto the aircraft, the heat storage device is preheated and attached to the storage space, and the heat storage device is loaded onto the aircraft. 65 when hiding for a long time
The temperature inside the refrigerator was maintained at a high temperature of over ℃.

(Example) An example of the implementation of the present invention will be described with respect to an in-flight food storage on an aircraft.

In the drawings, reference numeral 1 indicates a food and drink storage, and the wall of the food and drink storage 1 has a heat insulating property by filling a heat insulating material 1c between an outer wall 1a made of resin or other material and an inner wall 1b made of aluminum or other metal plate. It was designed to be prepared.

2 shows a heat pipe panel installed in the storage 1, and the illustrated heat pipe panel 2 is constructed by providing mutually communicating heat medium circuits 2a vertically and horizontally between two metal plates, as shown in FIG. , which is curved to have a U-shaped longitudinal section and is formed along the inner wall and bottom side wall of the storage 1. An electric heater 3 is integrally attached to the bottom surface of the heat pipe panel 2, and a storage space 5 for removably storing a heat storage device 4 is formed in the upper part of the heat pipe panel 2 along the bottom wall surface. The heat storage device 4 stored in the storage space 5 is placed in a sealed container 4a made of aluminum or the like with good thermal conductivity at a temperature near the cooking temperature (70°C).
The heat storage material 4b is filled with a heat storage material 4b made from food oil such as organic fatty acid having a melting point of ~90°C).

The front side of the food and beverage storage 1 is provided with an opening 1d that extends over almost the entire surface thereof, and the opening 1d is provided with a door 6 for opening and closing the opening 1d.The door 6 closes the upper half of the opening 1d. It consists of an upper door 6a and a lower door 6b that closes the lower half, and these are screwed together at the top and bottom, and both ends of the screw shaft 7 are detachably attached to latches 8 provided on both sides of the front of the storage 1. Lock and install the door 6
The upper and lower halves of the door can be opened and closed to prevent internal heat from escaping to the outside as much as possible, and when the door 6 is removed from the latch 8, the entire opening 1d is opened at once to facilitate in-flight service. In addition, the interior can be easily cleaned.

In addition, 9 is a handle provided on the doors 6a, 6b, 10,
11 is a permanent magnet provided on one door 6a, 6b and a magnetic piece adsorbed thereto; 12 is a shelf piece for supporting the tray 13 provided in several stages inside the heat pipe panel 2; A caster 15 provided at the outer lower part indicates a plug for connecting the electric heater 3 to an external power source (not shown) provided at the outer front lower left part of the storage 1.

When storing, warmed food and drinks stored in container A are placed in tray 13 in storage 1, which has an internal volume of approximately 40 cm.
Then, the electric heater 3 is connected to an external electric heater, and the inside of the refrigerator 1 is heated by the electric heater 3.
It is assumed that the heat storage device 4, which has been heated to 80℃ and then soaked in boiling water, will be stored, left at room temperature (20℃), and then left outdoors in a bitterly cold region. The results of an experiment in which the sample was left in a freezer at -10°C for one hour and then left at room temperature were as shown in Figure 7.

That is, even after 5 hours had passed from the start of the experiment, the temperature could be maintained at 65°C or higher, at which point bacteria hardly grew.

Although the above-mentioned device has been described for use in an airplane, it goes without saying that this device can also be used in party venues, hospitals, and other places where there is no power source or where it is difficult to obtain a power source for the electric heater 3.

(Effect of the invention) As described above, according to the invention, the heat of the electric heater heated by the external power source can be quickly and evenly distributed to each part of the storage cabinet by the heat pipe panel. This makes it easy to obtain a thermal storage that can be heated quickly and evenly, and that can be maintained for a long time using a heat storage device.This keeps food at the desired temperature and prevents the growth of bacteria. The structure is such that a heat pipe panel is provided along the inner wall and the bottom side wall of the insulating food storage, and the bottom wall surface of the heat pipe panel is It is simple and compact, as it is sufficient to provide an electric heater that is electrically heated by an external power source along the bottom wall of the heat pipe panel, and a storage space that removably stores the heat storage device along the bottom wall of the heat pipe panel. This has the effect of easily providing a relatively large food storage space.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one example of implementing the present invention;
The figure is a slope view with the door open, Figure 3 is a front view with half cut away, Figure 4 is a side view with half cut away, and Figure 5 is a slope view with a part of the heat pipe panel cut away.
FIG. 6 is a perspective view showing the door portion, and FIG. 7 is a curve diagram showing the temperature characteristics of the device. 1... Food and drink storage, 2... Heat pipe panel, 3... Electric heater, 4... Heat storage device, 5... Storage space.

Claims (1)

[Scope of utility model registration request] A heat pipe panel is provided along the inner wall and the bottom side wall of the heat insulating food storage, and an electric heater that is heated by an external power source is provided along the bottom wall surface of the heat pipe panel. A thermal insulation cabinet for storing food and drinks, which is provided with a storage space along the bottom wall surface of a pipe panel to removably store a heat storage device.