JP3905376B2 - Air conditioner outer wall panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the technical field of a panel used as an outer wall of a casing of an air conditioner.
[0002]
[Prior art]
Conventionally, an outer wall panel of this type of air conditioner has a foam of urethane resin c between an outer plate a and an inner plate b arranged at a predetermined interval, for example, as shown in FIG. It is known that a predetermined heat insulating effect and strength are obtained by filling and fitting a frame material d at the end, and as shown in FIG. 8, between the outer plate a and the inner plate b. A material obtained by pasting a core material e to obtain a predetermined heat insulation effect and strength is known.
[0003]
[Problems to be solved by the invention]
By the way, the outer wall panel filled with urethane resin between the outer plate a and the inner plate b of the conventional outer wall panel shown in FIG. 7 is long until the end portion of the outer plate a and the end portion of the inner plate b are brought into contact with each other. Then, since the heat is transferred between the iron outer plate a and the inner plate b and the heat insulation effect is diminished, the end of the outer plate a and the end of the inner plate b must be separated from each other. Since there is a gap space portion f between the end portion of a and the end portion of the inner plate b, convection and heat radiation occur in the air existing in the gap space portion f, and heat transfer due to this is also foolish. Experiments have shown that it cannot be ignored.
Further, in order to avoid the gap space f, the outer wall panel shown in FIG. 8 omits bending at the end portions of the outer plate a and the inner plate b. In this case, the strength of the outer wall panel itself is omitted. In addition, the position of the adhesive that joins the outer plate a, the core material e, and the inner plate b may be displaced until it hardens, making it difficult to join with high accuracy. There was a problem.
Furthermore, urethane resin is used as a conventional core material, but the heat insulation effect is high by preventing the cold or warm heat in the casing from escaping to the outside by a foam such as urethane resin. The volume can be easily reduced by incineration, but the incineration ash of urethane resin must be disposed of as industrial waste. There is a problem that it cannot be expected, and further, there is a problem that used foaming agents such as urethane resins are generally difficult to use for recycling.
Therefore, the present inventors have developed a paper material instead of urethane resin as a heat insulating agent between the outer plate and the inner plate of the outer wall panel of the air conditioner. The gap space f is unavoidable, and as described above, the ratio of heat transfer from the inner plate to the outer plate due to air convection and heat radiation in the gap space f is high, and there is a problem in heat insulation. there were.
In view of the above-described problems, the present invention intends to provide an outer wall panel that enhances a heat insulating effect in an air conditioner using a paper material as a heat insulating material between an outer plate and an inner plate of the outer wall panel.
[0004]
[Means for Solving the Problems]
The invention according to claim 1 is laminated and filled with a plurality of layers of paper cylinders in close contact between the outer plate and the inner plate of the outer wall panel, and an air layer blocking film is interposed between the plurality of layers, The end wall of the outer wall panel is fitted with an end frame material made of a hard material and sealed, and a gap space made up of the outer plate, the inner plate and the paper tube is filled inside the end frame material. By providing an outer wall panel of an air conditioner characterized in that a flexible material gasket is provided, the above-mentioned problems are solved.
[0005]
According to a second aspect of the present invention, in the outer wall panel according to the first aspect, the distal end portion of the bending locking portion that fits to the outer plate and the inner plate of the end frame member is a soft material, The above-mentioned problem is solved by providing an outer wall panel of an air conditioner characterized in that a hollow airtight holding deformation portion is provided at an appropriate place.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a preferred outer wall panel of an air conditioner according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a floor-mounted fan coil unit to which an outer wall panel of the present invention is applied. A fan coil unit casing 1 includes first, second, and third casings 1a, 1b, and 1c. Are connected in the left-right direction. Since the inside of these casings 1 is usually different from room temperature, the side surfaces of the casings 1a, 1b, and 1c that are in contact with the interior are composed of an outer wall panel 2 that has a heat insulating effect, including the door.
The cross section of the outer wall panel 2 will be described with reference to FIG. 2. The outer wall panel 2 is composed of an outer plate 3 and an inner plate 4 made of a galvalume steel plate, and is in close contact as a filler between the outer plate 3 and the inner plate 4. The cylinder 5 is used to laminate and fill the layers into three layers, and at the end of the outer wall panel 2, the outer plate 3 and the inner plate 4 form end portions 31 and 41 that are bent inward, and at the end 21 of the outer wall panel 2. Is fitted with an end frame member 6 to seal the entire end portion.
[0007]
A first embodiment of the paper cylinder 5 is shown in FIG. 3, which is a roll core 51 in which a continuous belt-shaped paper is meandered to form a cylinder, and a contact portion 52 that is in contact with the meandering is bonded with an adhesive. A cylinder is formed. Since the roll core 51 is manufactured by meandering a continuous strip of paper, it is easy to manufacture and inexpensive.
In this embodiment, as shown in FIGS. 2, 3, 4, and 6, the roll core 51 has three layers, and an air layer separation membrane 7 is disposed between the layers. Paper or aluminum foil is used, but in this embodiment, aluminum foil having a higher air blocking effect is used.
As shown in FIG. 9, in the single-layer roll core 51, convection B is generated directly between the outer plate 3 and the inner plate 4 due to air convection and heat transfer by heat radiation, so that the heat insulation effect is reduced. In addition, the air layer separation membrane 7 is arranged to divide heat transfer by heat radiation and prevent heat exchange to enhance heat insulation.
As a modification of the first embodiment, as shown in FIG. 4, in the three-layer roll core 51, the center of the rolls of the adjacent roll cores 51 are shifted and arranged, thereby providing a higher heat insulation effect and strength. May be obtained.
[0008]
A second embodiment of the paper cylinder 5 is shown in FIG. 5, and the paper cylinder is formed with a hexagonal honeycomb cylinder 54, and the manufacturing process is complicated compared to the roll core 51, but the contact portion 55 is wide. Since it has an area, there is an advantage that strength is increased. Between each of the honeycomb cylinders 54, an air layer separation film 7 for preventing heat transfer by air convection and heat radiation is disposed. As the air layer separation film 7, an aluminum foil is used as in the first embodiment. The same.
The end frame member 6 is fitted so as to cover the entire surface of the end portion 21 of the outer wall panel 2, but most of the end frame member 6 is made of a hard resin, and both end portions are provided with the outer plate 3 and the inner plate 4. Bending and engaging portions 61 and 62 are provided so as to be pressed down, and the distal ends of the bending and engaging portions 61 are provided with tip portions 63 and 64 of a resin of a flexible material in order to further increase the adhesion.
A hollow airtight retaining deformable portion 65 is provided at an appropriate position in the vicinity of one of the distal end portions 63 and 64 on the side in contact with the casing 1, but this deformable portion 65 is elastic and has a casing. 6, the outer wall panel 2 is fixed to the casing 1 with bolts 13 as shown in FIG. 6, but the outer wall 12 of the frame 11 forming the casing 1 is fixed to the casing 1. It has the effect of improving the airtightness by deforming into an ellipse at the contacting part.
[0009]
On the inner side wall 66 of the end frame member 6, there is a gap space A composed of the end portion 31 of the outer plate 3, the end portion 41 of the inner plate 4, and the side surface of the paper tube 5. If the length is increased until the end portion 32 of the outer plate 3 and the end portion 42 of the inner plate 4 are brought into contact with each other, heat is transferred between the outer plate 3 and the inner plate 4 which are usually made of iron and the heat insulating effect is reduced. The distance between the end portion 32 of the plate 3 and the end portion 42 of the inner plate 4 should be increased.
However, it has been experimentally found that if the gap space A is too large, convection occurs in the air existing in the gap space A, and heat transfer by this convection is not foolish and cannot be ignored. In order to eliminate the gap space A, it is conceivable that the shape of the inner wall 66 of the end frame member 6 is such that no space exists. However, since the end frame member 6 is a hard material, it is airtight. In this embodiment, a heat insulating gasket 8 made of a flexible material is provided on the inner wall 66 of the end frame member 6 in a shape that fills the gap space A.
The gasket 8 is provided so as to cover the entire surface of the end portion 21 of the outer wall panel 2 and the inner wall 66 of the end frame member 6, and as shown in FIGS. 2 and 6, the inner wall 66 and the end portion of the outer plate 3 are provided. The gap space portion A composed of 31, the end portion 41 of the inner plate 4 and the side surface portion of the paper tube 5 is filled, and is closely attached to each member so that there is no space.
[0010]
Since the present embodiment is configured as described above, even if a paper material is used as a filler between the outer plate 3 and the inner plate 4 of the outer wall panel 2, heat transfer by air convection or radiation is divided. Thus, a high heat insulating effect can be obtained with the space portion eliminated as much as possible.
Further, as a secondary effect, since the paper tube 5 is made of paper, when the outer wall panel is discarded, there is almost no residue due to the incineration of the paper tube 5, and the disposal process is easy. Even if it is disposed of in a state, it can be expected to have a natural degradation effect by bacteria, etc., so it has little impact on the environment.
Further, since the paper tube 5 can be regenerated into a cellulose material, it can be utilized as a recycling resource, and since the paper tube 5 itself can use cellulose regenerated from waste paper, the use of the recycled material can be promoted.
[0011]
Of course, the present invention is not limited to the above-described embodiment as long as it does not impair the features of the present invention. For example, the shape of the paper tube 5 has a structure that prevents air convection and maintains strength. If there is, it is not limited to the cylinder of the first embodiment and the hexagonal column of the second embodiment, but of course, other polygonal cylinders may be used, and in both embodiments, the paper cylinder 5 is laminated as three layers. However, in some cases, two layers may be used, and as the number of layers increases, the manufacturing cost increases. However, heat transfer by air convection and heat radiation can be further prevented, and the heat insulating effect is also increased.
[0012]
【The invention's effect】
As described above, according to the first aspect of the present invention, the space generated by stacking and filling the paper cylinder of the paper material as the filler between the outer plate and the inner plate of the outer wall panel, and occurring inside the end frame member. In addition, since the gasket is filled with a flexible material, even if the heat insulating material is made of paper, air convection can be prevented and a high heat insulating effect and required strength can be obtained.
Compared to conventional urethane resins, there is almost no residue due to incineration of paper cylinders at the time of disposal, and disposal is easy, and even when discarded without treatment, natural decomposition by bacteria etc. Therefore, the paper tube can be recycled into cellulose material and can be used as a recycling resource, and the paper tube itself uses cellulose regenerated from waste paper. Therefore, the use of recycled materials can be promoted, and the secondary effect that the load on the natural environment can be reduced is obtained.
[0013]
According to the invention of claim 2, in addition to the effect of claim 1, the portion in contact with the casing has a simple configuration in which a deformable portion for airtightness is provided at the tip of the bent locking portion of the end frame member. An effect of improving the airtightness by deforming into an ellipse is obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view in which an outer wall panel according to an embodiment of the present invention is used in a floor-standing fan coil unit.
FIG. 2 is a cross-sectional view of an outer wall panel according to an embodiment.
FIG. 3 (a) is a perspective view of an embodiment of a first paper cylinder, and FIG. 3 (b) is a partial sectional view thereof.
FIG. 4 is a partial cross-sectional view of a modified example of the first paper tube embodiment.
FIG. 5 (a) is a perspective view of an embodiment of a second paper cylinder, and FIG. 5 (b) is a partial sectional view thereof.
FIG. 6 is a cross-sectional view showing a use state in which the outer wall panel of the embodiment is attached to the casing.
FIG. 7 is a cross-sectional view of a conventional outer wall panel.
FIG. 8 is a cross-sectional view of another conventional outer wall panel.
FIG. 9 is a cross-sectional view illustrating a state of heat transfer in a single-layer paper tube.
[Explanation of symbols]
A ... Crevice space 1, 1a, 1b, 1c ... Air conditioner casing, 11 ... Frame, 12 ... Outer frame, 13 ... Bolt,
2 ... Outer wall panel, 21 ... End, 3 ... Outer plate, 31, 32, 41, 42 ... End, 4 ... Inner plate,
5 ... paper tube, 51 ... roll core, 52,55 ... contact portion, 54 ... honeycomb tube,
6 ... End frame material, 61, 62 ... Bent locking part, 63, 64 ... Tip part, 65 ... Deformed part,
66… Inner wall,
7 ... Air layer separation membrane,
8 ... Gasket

Claims (2)

A plurality of layers of paper cylinders in close contact between the outer plate and the inner plate of the outer wall panel are stacked and filled, an air layer blocking film is interposed between the plurality of layers, and the entire end portion of the outer wall panel is hard. The end frame material of the material is fitted and sealed, and a gasket made of a flexible material is provided inside the end frame material to fill a gap space portion composed of the outer plate, the inner plate, and the paper tube. The outer wall panel of the air conditioner. The outer wall panel according to claim 1, wherein a distal end portion of the bending engagement portion fitted to the outer plate and the inner plate of the end frame member is made of a soft material, and a hollow airtight holding deformation at an appropriate position of the distal end portion. The outer wall panel of the air conditioner characterized by having provided the part.

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