JPH0113991Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a heat insulating panel for the side walls of commercial large freezers, large refrigerators, etc.

Conventionally, in a side wall insulation panel for a freezer, etc., which includes a pair of face plates facing each other with a predetermined interval and a heat insulating material filled in a hollow space between both the face plates, It is known that a corrugated plate having ridge-shaped convex portions for load shedding arranged in parallel over the entire surface is used as the surface plate. However, if the ridge-like protrusions for load shearing are arranged in parallel all over the inside of the refrigerator, when the insulation panel is used as the side wall of a refrigerator, the cold air inside the refrigerator will be exposed to a large number of ridge-like protrusions that extend vertically. The problem was that the cold air was obstructed by the cold air, making it difficult for it to flow horizontally, making it difficult for cold air to flow smoothly.
In addition, since corrugated sheets have to be thicker than flat sheets due to molding, they are expensive and heavy, and the connection structure for the panel frame placed between the ends of both surface sheets is also complicated. There was a problem.

The purpose of this design is that compared to a corrugated plate having parallel ridges for shearing the load on the entire surface as the surface plate for the inside of the refrigerator, the convection of cold air can be carried out smoothly and the cost is lower. To provide a heat insulating panel for a side wall of a freezer, etc., which is light in weight and has a simple connection structure to a panel frame.

In order to achieve the above-mentioned purpose, this invention includes a pair of face plates that are placed opposite each other at a predetermined interval, and a heat insulating material filled in the hollow space between the two face plates. In a heat insulating panel for the side wall of a freezer, etc., the surface plate serving as the inside of the refrigerator is a corrugated sheet having parallel ridge-like protrusions for load shedding, and a joint end where the back surface of the end of the corrugated sheet is overlapped and joined. It is characterized by a structure consisting of a flat plate having a

An embodiment of this invention will be described below with reference to the drawings.

A heat insulating panel 1 for a side wall of a freezer or the like includes a pair of surface plates 2 and 3 facing each other at a predetermined interval.
and a heat insulating material 27 filled in a hollow space between both surface plates 2 and 3. Then, the surface plate 2 serving as the inside of the refrigerator has a corrugated plate 4 having parallel ridge-shaped convex portions 4a for load shedding, and a joint end portion which is overlapped with the back surface of the upper end of the corrugated plate 4 and joined by spot welding. 2
8 and a flat plate 5.

A connecting plate 6 is attached to the lower end of the corrugated plate 4 of the inside surface plate 2.
are joined. The connecting plate 6 includes a band-shaped flat part 7 spot-welded to the back surface of the lower end of the corrugated plate 4;
It consists of a hook part 8 provided at the lower edge of the band-shaped flat part 7.

The corrugated plate 4 is made of a steel plate with a thickness of 0.8 mm, and the flat plate 5, the connecting plate 6, and the outside surface plate 3 are made of aluminum plate with a thickness of 0.4 mm. It has a length of 2/3 of the total length. As the heat insulating material 27, polyurethane foam is used.

Both surface plates 2 and 3 at the upper and lower ends of the insulation panel 1
Synthetic resin panel frames 12 and 19 are placed between them. The panel frames 12 and 19 have fitting protrusions 13 and 20 each having a U-shaped cross section, and folded edges 14, 15, and 21 provided on both sides of the fitting protrusions 13 and 20, respectively.
22 and more. Folded edge 1 of upper panel frame 12
4 and 15 are hooked with hook portions 9 and 10 provided at the upper end of the flat plate 5 of the inner side surface plate 2 and the upper end of the outer side surface plate 3, respectively. Lower panel frame 19
Hooks 8 and 11 of the connecting plate 6 of the inner side surface plate 2 and the outer side surface plate 3 of the refrigerator are respectively hooked to the folded edges 21 and 22 (see FIGS. 3 and 4).
(see figure).

Both surface plates 2 and 3 at both ends of the heat insulation panel 1
are provided with folded edges 23, 24, and panel frames 25, 26 made of synthetic resin film are attached so as to straddle both folded edges 23, 24 from the inside. One panel frame 25 is formed in a concave shape, and the other panel frame 26 is formed in a convex shape, so that the concave panel frame 25 and the convex panel frame 26 of two adjacent heat insulation panels 1 can fit together. (See Figures 6 and 7).

FIG. 8 shows a state in which the side wall heat insulating panel 1 and the ceiling wall heat insulating panel 28 are connected.

In the figure, reference numeral 29 denotes a concave fitting frame arranged on the lower surface of the end of the ceiling heat insulating panel 28, into which the fitting convex portion 13 of the frame 12 of the side wall heat insulating panel 1 is fitted. Reference numeral 17 denotes a nut holding member in which a plurality of nuts 18 are embedded and fixed at predetermined intervals in the center of the lower end width, and is arranged inside the panel frame 12. Numeral 30 is a bolt screwed into the nut 18 from the top surface of the ceiling insulation panel 28, and bolts are inserted into both insulation panels 28, 1 from the top surface of the ceiling insulation panel 28 to the nut 18 of the side wall insulation panel 1. A general-purpose hole 16 is drilled.

The connection structure between the side wall heat insulation panel 1 and the floor heat insulation panel or base (not shown) is exactly the same as the connection structure between the side wall heat insulation panel 1 and the ceiling heat insulation panel 28 described above.

In the above embodiment, a steel plate is used for the corrugated plate 4 of the inside surface plate 2, but other than steel plate, a PVC steel plate, an aluminum plate, etc. can also be used. Further, although aluminum plates are used for the inside surface plate 3, flat plate 5, and connection plate 6, steel plates, PVC steel plates, etc. can also be used in place of aluminum plates.

According to this invention, a heat insulating panel for the side wall of a freezer, etc., includes a pair of face plates arranged oppositely at a predetermined interval, and a heat insulating material filled in a hollow space between both face plates. In this case, the surface plate serving as the inner side of the refrigerator is composed of a corrugated plate having parallel ridge-like convex portions for load shedding, and a flat plate having a joint end overlapped and joined to the back side of the end of the corrugated plate. Compared to the case where a corrugated sheet with parallel ridge-like protrusions for load shedding is used as the surface plate on the inside of the refrigerator, the cold air inside the refrigerator is Flows horizontally, so convection occurs more smoothly. In addition, there is a flat plate in a part of the surface plate, and the wall thickness of this plate is thinner than that of the corrugated plate, so if such a flat plate is used, the cost can be reduced and the weight can be reduced. Furthermore, in the case of using a corrugated plate, a connecting plate like the one shown in the above embodiment is required to connect the corrugated plate to the panel frame. Since the section itself can be connected to the panel frame, the connection structure can be simplified accordingly. Since the surface plate on the inner side of the refrigerator has a corrugated plate having parallel ridge-like protrusions for shedding cargo in a portion other than the flat plate, there is no fear that the side wall will be damaged by the cargo inside the refrigerator.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention: Fig. 1 is a front view of a side wall heat insulating panel, Fig. 2 is a cross-sectional view taken along the - line in Fig. 1, and Figs. Figure 2 is an enlarged cross-sectional view of the upper and lower parts of Figure 2, Figure 5 is an enlarged cross-sectional view along the - line of Figure 1,
The figure and FIG. 7 are enlarged sectional views of both sides of FIG.
FIG. 8 is a sectional view showing how the ceiling and side wall heat insulating panels are connected. 1... Side wall insulation panel, 2, 3... Surface plate, 4...
Corrugated plate, 4a... ridge-like convex portion for load shedding, 5... flat plate, 27
...Insulating material, 28...Joining end of flat plate.

Claims (1)

[Scope of utility model registration request] A heat insulator for side walls of a freezer, etc., comprising a pair of face plates 2 and 3 facing each other with a predetermined interval, and a heat insulating material 27 filled in a hollow space between both face plates 2 and 3. In the panel 1, the surface plate 2 serving as the inside of the refrigerator is connected to a corrugated sheet 4 having parallel ridge-like convex portions 4a for load shedding, and a joint end 28 which is overlapped and joined to the back surface of the end of the corrugated sheet 4. A structure characterized in that it is composed of a flat plate 5 having a.