JPH0356398B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a storage compartment such as a refrigerator, and is provided with a window fitted with a transparent plate to block heat rays (infrared rays) and ultraviolet rays that are about to pass into the compartment from the outside. This suppresses temperature rise and prevents deterioration of stored items such as chemicals.

The present invention will be explained in detail below based on the drawings. Reference numeral 1 denotes a heat insulating box body consisting of a box body 3 which is a combination of an outer box 4 and an inner box 5 and is filled with a heat insulating material 6, and a heat insulating door 2 for delivering articles to the warehouse interior 3C. The heat insulating door 2 is fitted to rails 7, 7 fixed to the top and bottom of the window, that is, the front opening 3A of the box body 3, so as to be able to slide left and right. ) are overlapped at their edges and slid in a sliding manner.
The heat insulating door 2 is constructed by laminating a plurality of transparent plates 8, 8 made of glass, acrylic, etc. with an annular spacer 9 in between. Transparent plate 8 of this transparent plate group,
The intermediate portion between the two parts 8' is a heat insulating space by filling a vacuum or a gas such as nitrogen, so that the inside of the heat insulating box 1 is insulated from the outside. Reference numeral 10 denotes a see-through film whose area is smaller than the area of one surface of the transparent plate 8 and which reflects heat rays. For example, aluminum is vacuum-deposited on a polyester film, and this film is the outermost transparent plate of the group of transparent plates. The transparent plate 8 is bonded with an adhesive to the inside surface of the refrigerator, that is, the surface on the side of the heat insulating space, except for the peripheral edge, and a part of the transparent plate 8 is exposed to the heat insulating space between the peripheral edge and the spacer 9. It is an exposed surface. Therefore, most of the heat rays that try to pass through the transparent plate group fitted in the window, ie, the front opening 3A of the heat insulating box 1 are blocked. In this case, the membrane 10 is provided on the side of the heat insulation space of the transparent plate 8 on the outermost side of the refrigerator, so that immediately after the heat rays pass through the transparent plate 8, they are directly reflected to the outside of the refrigerator by the membrane 10, and the transparent plate 8 on the inner side of the refrigerator Heat rays are less likely to reach the plate 8' and the heat insulating space, and therefore the temperature rise of the air inside the refrigerator can be suppressed. In addition, the transparent plate 8 on the outermost side of the refrigerator absorbs a portion of the heat rays as heat as they pass through both the incident and reflected heat rays, so the temperature is maintained slightly higher than the temperature of the air outside the refrigerator, causing dew condensation on the surface. In addition, for example, about one-third of the absorbed heat is re-radiated both inside and outside the refrigerator, but the radiant heat toward the inside of the refrigerator is reflected back to the outside of the refrigerator by the membrane 10, so the transparent plate There is almost no influence of re-radiated heat on 8' and the heat insulating space. Furthermore,
Although the membrane 10 itself radiates a small amount of heat both inside and outside the refrigerator, the radiant heat toward the inside of the refrigerator is suppressed from reaching the interior 3C of the refrigerator in the heat insulating space. Furthermore, since the membrane 10 also blocks ultraviolet rays, it is possible to prevent the stored articles in the refrigerator interior 3C from deteriorating in quality. Furthermore, if the membrane 10 is made of a film as in the embodiment, even if the transparent plate 8 is broken by an external impact, the membrane 10 is attached, so that small pieces can be prevented from scattering. Furthermore, membrane 1
0 has a smaller area than the transparent plate 8, and is provided on the surface of the transparent plate 8 on the outside of the refrigerator, excluding the peripheral edge of the surface on the heat insulation space side, and forms a part of the transparent plate 8 between it and the spacer 9 into a heat insulation space. Since it forms an exposed surface that is exposed to
When the spacer 9 is stacked on the transparent plate 8, the membrane 10 is not pinched between the transparent plate 8 and the spacer 9, and the connection between the transparent plate 8 and the spacer 9 is improved.

In addition, 11 is a lighting fixture installed in the refrigerator interior 3C, and 12 is a condenser 14 and a compressor 1 in the machine room 13 below the box body 3.
5 to constitute a well-known refrigeration cycle, and is a cooler that cools the inside of the refrigerator 3C.

Since the present invention is configured as described above, the heat ray reflective film has the function of directly reflecting most of the heat rays that have passed through the transparent plate toward the outside of the refrigerator, and as a result, both incident and reflected heat rays are reflected. Through the transmission, it is possible to maintain the temperature of the outside transparent plate slightly higher than the temperature outside the refrigerator, thereby preventing dew condensation on the surface of the outside transparent plate. Further, the area of the membrane is smaller than that of the transparent plate, and it is provided on the surface of the transparent plate excluding the peripheral edge of the surface on the heat insulation space side, and a part of the transparent plate is placed between the peripheral edge and the spacer. Since the exposed surface is exposed to the heat insulating space, when connecting the transparent plate and the spacer, the peripheral edge of the transparent plate and the spacer directly face each other, and the peripheral edge of the membrane and the spacer are separated, so that both membranes are connected. Since it does not interfere with mutual connection,
Not only is it easy to arrange the spacers, it is also easy to assemble the transparent plate and the spacer, and the bonding strength between the transparent plate and the spacer can be improved, and all the membranes are located within the heat insulating space. Therefore, there are no disadvantages such as damage caused by external force that reduces efficiency, dust adhesion that reduces visible light transmission, or scratches during cleaning, and improves durability. .

[Brief explanation of drawings]

FIG. 1 is a schematic vertical cross-sectional view of the storage according to the present invention, and FIG. 2 is a vertical cross-sectional view of the heat-insulating door. 1...Insulating box body, 8, 8'...Transparent plate, 9...
Spacer, 10... membrane.

Claims (1)

[Claims] 1 A window formed in a heat insulating box has two transparent plates on the inside and outside of the refrigerator, an annular spacer that is interposed between the two transparent plates and forms a heat insulating space between the two transparent plates, and A storage container comprising: a film that reflects heat rays and is attached to the inside of the storage spacer and is separated from the spacer and adhered to the surface of the transparent plate on the outside of the storage space facing the heat insulating space.