JP3991561B2 - Thermal insulation panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heat insulating panel using a vacuum heat insulating material used for a refrigerator, a freezer car and the like, and more particularly to a heat insulating panel whose rigidity is improved by a reinforcing material.
[0002]
[Prior art]
Japanese Patent Laid-Open No. 10-114245 discloses a structure that improves the heat insulation performance maintenance effect in a heat insulation panel used for a heat storage wall of a moving storage that requires temperature management in a refrigerator, such as a refrigerator, a refrigerator, a cold car, etc. It is disclosed.
Here, the disclosed configuration will be described with reference to FIG.
The heat insulating panel 1 is formed by embedding a vacuum heat insulating material 6 in a heat insulating material 5 made of hard urethane foam or the like to form a core material 7, and arranging an outer plate 8 and an inner plate 9 on both surfaces of the core material 7. Sanitch insulation panel material.
[0003]
[Problems to be solved by the invention]
However, when the sandwich heat insulation panel 1 having the above structure is used on the ceiling or side wall of a freezer and an instrument such as an evaporator is hung on the ceiling, or a lashing rail for fixing luggage is attached to the side wall surface, A reinforcing plate is attached to the mounting side wall surface to improve the durability of a local load by the mounting tool.
[0004]
With reference to FIG. 7, the reinforcement structure in the case of attaching a lashing rail to the side wall surface which consists of a sandwich panel, for example is demonstrated.
A lashing rail 2 is attached to a wall member 1 composed of a heat insulating portion composed of a heat insulating material 5 and a vacuum heat insulating material 6 sandwiched between an outer plate 8 and an inner plate 9 with a stopper 35 or the like via a reinforcing plate 3.
[0005]
However, such a configuration has the following problems.
1. If the vacuum heat insulating material 6 is scratched and broken for some reason, the bending rigidity and strength of the sandwich heat insulating panel 1 itself are significantly reduced, so that the strength of the reinforcing material 3 alone cannot withstand long-term use. .
2. Since a relatively large size machine fastening part 35 (bolts, nuts, rivets, etc.) is used for the reinforcing material 3 portion, the vacuum heat insulating material 6 is often damaged during operations such as drilling a pilot hole. .
[0006]
Therefore, the present invention provides a heat insulating panel that prevents damage to the vacuum heat insulating material, maintains high heat insulating efficiency for a long time, and has rigidity.
[0007]
[Means for Solving the Problems]
In the heat insulation panel of the present invention, a heat insulation member in which a vacuum heat insulation material is provided and a gap is filled with a heat insulation portion such as a styrene slab material, a urethane foam slab material, or an injection urethane foam material is sandwiched between the surface materials. Then, a reinforcing plate is disposed between the surface insulating material and the vacuum heat insulating material at a distance from one surface material (for example, the side on which the load is applied), and the reinforcing plate includes the heat insulating member including the vacuum heat insulating material. And the structure which forms the 2nd heat insulation part which makes the sandwich structure which pinched | interposed the heat insulation part with the reinforcement board and the surface board between the vacuum heat insulating material and the surface board is comprised as a basic composition .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a heat insulating panel according to the present invention.
The heat insulating panel 10 forming a wall structure such as a freezer has a structure in which a heat insulating member including a vacuum heat insulating material 50 is sandwiched between an outer plate 11 and an inner plate 13 which are surface materials.
The outer plate 11 and the inner plate 13 are made of a thin plate made of an aluminum alloy or a plastic composite material, and the heat insulating member includes a vacuum heat insulating material 50 disposed in a central portion of the inner and outer plates, and the outer plate 11 and the vacuum heat insulating material 50. A first heat insulating portion 15 disposed in between, and a second heat insulating portion 17 disposed between the inner plate 13 and the vacuum heat insulating material 50 are provided.
[0009]
The vacuum heat insulating material 50 includes a heat insulating core material 51 made of a plastic communication foam material such as a urethane communication foam material or a styrene communication foam material, a plastic film 53 covering the heat insulation core material 51, and a reduced pressure. The gas adsorbent 55 is configured to adsorb and fix the gas entering the vacuum heat insulating material 50.
The 1st heat insulation part 15 and the 2nd heat insulation part 17 are formed with the styrene slab material, the urethane foam slab material, the injection | pouring urethane foam material, etc.
[0010]
And when comprising wall surfaces, such as a refrigerator car, with respect to the vacuum heat insulating material 50 in a center part, the reinforcement board | plate material 30 is provided between the inner board 13 and the vacuum heat insulating material 50 which are located in a load side, for example in a warehouse. Place.
[0011]
The reinforcing plate member 30 is a member having high bending rigidity such as a metal plate (aluminum, steel, SUS, etc.), a glass fiber reinforced plastic (synthetic resin) plate, or a plastic plate.
The reinforcing plate 30 is disposed on the entire surface of the heat insulating panel 10, or strip-shaped reinforcing plates 31 are disposed at appropriate intervals in the vertical direction of the panel (see FIG. 2), or the strip-shaped reinforcing plate 33 is disposed in the longitudinal direction of the panel. There are arrangement modes such as arranging them at appropriate intervals (see FIG. 3).
[0012]
As described above, the heat insulating panel 10 forms a sandwich panel structure in which the heat insulating portion 17 is sandwiched between the inner plate 13 and the reinforcing plate 30 on the load side with respect to the vacuum heat insulating material 50 located in the central portion in the thickness direction. is doing. With this configuration, the reinforcing plate 30 prevents the progress of a drilling tool such as a drill and prevents the vacuum heat insulating material 50 from being damaged when the stopper hole is drilled when a member is attached to the surface of the inner plate 13. Even if the vacuum heat insulating material 50 is damaged for some reason, the rigidity of the heat insulating panel is maintained by the reinforcing plate 30.
[0013]
Next, the case where the said heat insulation panel is used as wall surfaces, such as a freezer, is demonstrated.
(1) When using a heat insulating panel as a ceiling board and attaching an evaporator ... The vacuum heat insulating material 50 is arrange | positioned through the 1st heat insulation part 15 in the outer plate 11 reference FIG. Then, the reinforcing plate 30 is disposed along the vacuum heat insulating material 50, and the second heat insulating portion 17 is disposed between the inner plate 13 and the reinforcing plate 30.
The auxiliary plate 40 is disposed on the inner plate 13 where the evaporator 100 is to be installed, a stopper hole is formed, and the evaporator 100 is attached to the heat insulating panel 10 as a ceiling plate by the stopper 45. At this time, when drilling the stopper hole, the drilling device such as a drill is prevented from further progressing in the panel thickness direction by the reinforcing plate 30, and the vacuum heat insulating material 50 is not damaged.
Moreover, the heat insulation panel 10 used as a ceiling board maintains rigidity for a long time against the load in the vertical direction of the panel 10 by the inner and outer plates 11 and 13 and the reinforcing plate member 30.
Moreover, the vacuum heat insulating material 50 is protected from breakage, and an efficient heat insulating effect is maintained.
[0014]
(2) When using a heat insulating panel as a side wall plate and attaching a lashing rail, see FIG. 5. A vacuum heat insulating material 50 is arranged via the first heat insulating portion 15 of the outer plate 11, and along the vacuum heat insulating material 50. The lashing rail 150 is attached to the inner plate 13 in which the second heat insulating portion 17 is disposed between the reinforcing plate member 30 and the inner plate 13 to be disposed. The lashing rail 150 is disposed in parallel to the front-rear direction of the warehouse side wall surface.
An auxiliary plate 60 having a lashing rail width is arranged in parallel in the front-rear direction on the inner plate 13 where the lashing rail 150 is to be attached, and a stopper hole is formed. . At this time, when drilling the stopper hole, the drilling device such as a drill is prevented from further progressing in the panel thickness direction by the reinforcing plate 30, and the vacuum heat insulating material 50 is not damaged.
[0015]
Further, an auxiliary member 66 may be used instead of the auxiliary plate. The auxiliary member 66 is an inner surface of a portion where the lashing rail 150 is attached by the stopper 65, and is disposed in the second heat insulating portion 17. Since this auxiliary member 66 also has the reinforcing plate 30 interposed between the vacuum heat insulating material 50, the auxiliary member 66 and the vacuum heat insulating material 50 are not in direct contact with each other, and the heat insulating effect of the vacuum heat insulating material 50 can be maintained for a long time. Achieved.
[0016]
In this embodiment, the reinforcing plate material is disposed along the vacuum heat insulating material. However, the reinforcing plate material is directly bonded to the vacuum heat insulating material or disposed between the vacuum heat insulating material and the slab material. A reinforcing plate material may be disposed therethrough.
[0017]
【The invention's effect】
As described above, the heat insulation panel of the present invention can maintain the heat insulation effect of a thin plate-like heat insulation panel with a vacuum heat insulating material for a long period of time, and the rigidity of the panel against a load such as a vibration or a static load due to member attachment.・ Long-term maintenance of strength is possible.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a heat insulation panel according to the present invention.
FIG. 2 is a cross-sectional view showing an arrangement of reinforcing plates.
FIG. 3 is a cross-sectional view showing another arrangement of reinforcing plates.
FIG. 4 is an explanatory diagram of an evaporator mounting portion on a ceiling panel of a freezer.
FIG. 5 is an explanatory view of a lashing rail mounting portion on a side wall panel of a freezer.
FIG. 6 is a cross-sectional view of a heat insulating panel using a conventional vacuum heat insulating material.
FIG. 7 is a configuration explanatory view of a location where a lashing rail is provided in a conventional heat insulation panel.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Heat insulation panel 11 Outer plate 13 Inner plate 15 1st heat insulation part 17 2nd heat insulation part 30 Reinforcement board 50 Vacuum heat insulation material 51 Core material 53 Synthetic resin film 55 Gas adsorbent 60 Auxiliary plate 65 Stopper 66 Auxiliary member 100 Evaporator 150 Lashing rail

Claims (3)

In a heat insulating panel comprising a heat insulating member composed of a vacuum heat insulating material and a heat insulating portion disposed around the vacuum heat insulating material, and a surface plate disposed on both surfaces of the heat insulating member,
There is a reinforcing plate provided in the heat insulating member at a distance from the surface plate between the surface plate on the side where the load is applied and the vacuum heat insulating material, and the reinforcing plate encloses the heat insulating member in the vacuum heat insulating material. A heat insulating panel comprising a first heat insulating portion, and a second heat insulating portion having a sandwich structure in which a heat insulating portion is sandwiched between a reinforcing plate and a surface plate between a vacuum heat insulating material and a surface plate. The heat insulation panel according to claim 1, wherein the reinforcing plate is a resin plate and prevents the progress of a drilling device such as a drill . The heat insulation panel according to claim 1, wherein the reinforcing plate is a metal plate and prevents the progress of a drilling device such as a drill .

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