JPH09170696A - Heat insulating formation and manufacture therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a complete heat insulating effect for use even at a high temperature by forming the first heat insulating material consisting of perlite on the high temperature side in a housing for shutting down the temperature in the housing, and shutting down temperature with the second heat insulating material consisting of urethane resin. SOLUTION: This heat insulating formation A consists of a heat insulating member 1 and a sheathing frame element 2 which surrounds the heat insulating member 1, whereas the first heat insulating material 1a in the heat insulating element is a layer of prescribed thickness formed by being fitted on one side of the inside of the sheathing frame 2 and bonding a large amount of perlite (p) formed to prescribed grain size to each other with adhesives (b), and the second heat insulating element 1b is made to be adjacent to the first heat insulating material 1a and is fitted over its whole surface on the other side of the inside of the sheathing frame 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating structure used in a structure having heat resistance in the construction industry of a structure and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, a high and low temperature cycle, for example, -40
In walls and doors such as temperature-controlled rooms and drying rooms used at temperatures between ℃ and + 150 ℃, they must be molded with heat-resistant and durable members that can withstand high or low temperatures over a long period of time. There is.

For example, a urethane frame and a surface frame made of metal in which an inorganic material such as rock wool, glass wool, calcium silicate plate and the like are provided are molded into a rectangular structure.

As shown in FIG. 17, this product is framed by a pair of left and right frame members 40, 41 and surface members 44, 45 fitted on joint parts 42, 43 of the frame members 40, 41. After accommodating the inorganic material 46 in the frame, the urethane resin 47 is foamed and filled to form the heat insulating panel 48.
Is formed.

In general, the heat insulating panel is installed on the inorganic material side in a cabinet such as a temperature-controlled room or a drying room, and the urethane resin side is mounted outside the cabinet.

However, it is difficult to uniformly fill the above-mentioned inorganic material, which is a heat insulating material, on one side of the frame with no gaps, and at the corner portion, filling leakage occurs to reduce the heat insulating effect. The heat inside the refrigerator gradually moves to the outside so that a so-called heat flow is generated and acts on the urethane resin.

However, although this urethane resin is excellent in low-temperature characteristics, when it is used at high temperature, secondary foaming occurs in the urethane itself unless it is lower than + 80 ° C., and the foaming pressure causes the secondary foaming in the height direction. It warps and becomes a defective product, or it causes a large decrease in the heat insulation effect due to the carbonization phenomenon of urethane, and it could not be sufficiently used as a heat insulation panel used at this high temperature. .

In particular, when a gap is created in the corner portion when filling the inorganic material, the filled urethane resin enters this portion, and the high temperature inside the chamber acts on the portion to cause secondary foaming, which causes the above-mentioned inconvenience. Cause And other various problems.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and provides a heat insulating structure comprising a heat insulating body and an outer frame body surrounding the heat insulating body. The first heat insulating material in the heat insulating body is a layer having a predetermined thickness, which is provided on one side inside the exterior frame body and has a large number of perlites formed to have a predetermined grain size, which are bonded to each other with an adhesive,
The second heat insulating material is a foamed resin body provided adjacent to the first heat insulating material on the entire inner surface of the exterior frame body on the other side thereof, so that the second heat insulating material is made of pearlite on the high temperature side in the refrigerator. By providing a material to shut off the temperature inside the refrigerator, and by further insulating the heat with a second heat insulating material made of urethane resin, a heat insulating structure capable of obtaining a reliable heat insulating effect for use at high temperatures, and the same It is intended to provide a manufacturing method.

[0010]

Means for Solving the Problems The means of the present invention for achieving the above-mentioned object is that the heat insulating structure of the first example is composed of a heat insulating body composed of first and second heat insulating materials. In a heat insulating structure including an outer frame surrounding the heat insulating body, the first heat insulating material in the heat insulating body is provided on the entire surface on one side inside the outer frame and is formed to have a predetermined grain size. A layer of a predetermined thickness in which a certain number of perlites are bonded to each other with an adhesive, and the second heat insulating material is provided adjacent to the first heat insulating material, and is a foamed resin provided on the entire other surface inside the exterior frame body. It is the body.

The heat insulating structure of the second example is a heat insulating structure including a heat insulating body made of first, second and third heat insulating materials, and an outer frame body surrounding the heat insulating body. The first heat insulating material in the heat insulating body is a layer having a predetermined thickness in which a large amount of perlite formed to have a predetermined grain size is provided on the entire surface on one side inside the exterior frame and is bonded to each other with an adhesive. The second heat insulating material is a foamed resin body that is provided on the entire surface on the other side of the inside of the exterior frame, and the third heat insulating material is provided between the first and second heat insulating materials. It is a plate-shaped body that is in contact with the material.

In the heat insulating structure, the first heat insulating material in the heat insulating body is provided on the entire surface on one side inside the exterior frame, and a large amount of perlite formed to have a predetermined grain size is bonded by an adhesive. A layer having a predetermined thickness, which is bonded to each other by means of, is provided in at least one place so as to shield the movement of the fluid to the second heat insulating material in parallel to the inside of the layer in the length direction.

Further, the heat insulating body is provided with a reinforcing body embedded in the vertical direction.

The first manufacturing method of the present invention is a heat insulating structure comprising a heat insulating body made of the first and second heat insulating materials, and an outer frame surrounding the heat insulating body. With the inner side of the body facing down, spread the perlite with the adhesive adhered to the inside of the exterior frame to a predetermined thickness and press to form the first heat insulating material, and then apply urethane resin to the upper part of the first heat insulating material. It is injected and foamed to form the second heat insulating material integrally with the first heat insulating material.

In the second manufacturing method of the present invention, the exterior frame body which surrounds the periphery thereof to form a cavity therein, and the heat insulation which is formed by filling the entire cavity of the exterior frame body In a heat insulating structure comprising a body, the heat insulating body is filled with a granular perlite having an adhesive attached, and is integrally formed by bonding the perlites and joining the perlite to an outer frame body. .

[0016]

The present invention configured as described above has the following effects.

In the first manufacturing method and its constituent body, the exterior frame body is formed in advance, and the inside of the interior of the exterior frame body is made to face down. The first heat insulating material is formed by evenly laying it to a predetermined thickness and pressing it.

Next, when a urethane resin is injected into the upper portion of the first heat insulating material and foamed, a second heat insulating material is molded integrally with the first heat insulating material.

In use, the high temperature inside the cold storage is blocked by the first heat insulating material of the heat insulating body in the heat insulating structure, and further blocked by the second heat insulating material to bring the temperature inside the cold storage to the outside. Do not communicate.

Further, in the second manufacturing method and its constituent body, the exterior frame body is formed by surrounding the periphery of the exterior frame body to form a hollow portion therein, and the granular perlite to which an adhesive is adhered is exterior. When the cavities of the frame are filled, the pearlites are bonded to each other and evenly bonded to the inner surface of the exterior frame to form an integral heat insulator.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an example of an embodiment of a heat insulating structure and a method of manufacturing the same according to the present invention will be described with reference to the drawings.

1 to 2 and 7 to 16A
Is a heat insulation structure, and is a low / high temperature room (for example, -40 ℃ ~
Structures such as buildings that compose 50 ° C.), for example, wall materials for prefabricated freezers / refrigerators, Brehab constant temperature chambers, prefabricated drying rooms, ceiling materials, etc., and those used for these structures themselves And the heat insulator 1,
It is basically configured by the exterior frame body 2.

In the first example of the heat insulating structure A in the embodiment of the present invention, the heat insulating body 1 is composed of the first heat insulating material 1a and the second heat insulating material 1b. Reference numeral 1a denotes a layer having a predetermined thickness, which is provided on the entire surface on one side inside the exterior frame body 2 and is bonded to each other with a large amount of pearlite p formed to have a predetermined grain size by an adhesive b. Sufficient heat resistance is exhibited for specifications of about + 80 ° C to + 150 ° C (sometimes above this range).

The pearlite p is a granular material obtained by crushing a raw ore made of Kurokiishi, pearlite, pinelite, etc., and heating it at a high temperature to foam it, and has a particle size of 1.0 to 8.0 mm. Appropriate ones are selected, or each size is mixed and used.

As the adhesive b, a conventional synthetic resin type having heat resistance and cold resistance and having a relatively low viscosity is used, and when filling the exterior frame 2, pearlite p is used. It is carried out after it is mixed with and mixed well with the perlite p.

The second heat insulating material 1b is the first heat insulating material 1a.
A foamed resin body made of urethane resin or the like, which is provided on the entire surface on the other side of the inside of the exterior frame body 2 so as to be adjacent to, and which is subjected to predetermined foam molding in the exterior frame body 2 to be described later.
It has a low temperature specification and exhibits great cold resistance.
Since the thermal conductivity is low, the effect is exhibited by providing the structure A on the outside of the refrigerator.

The above-mentioned exterior frame body 2 is formed by assembling into a predetermined shape from a sturdy metal or the like, and is assembled. For example, in the case shown in FIG. 2, inner frame materials 3a and 3b and outer frame materials 4a and 4b are used. It is composed of a heat shield 5, an exterior surface material 6 and an interior surface material 7, and these members 3a, 3b, 4
By the framework of a, 4b, 5, 6, and 7, the inside is hollow and the cross-sectional shape is formed in a substantially rectangular shape.

Of these, the inner frame members 3a and 3b and the outer frame members 4a and 4b are in contact with both ends of the heat insulating material 1 and the heat insulating structure A is formed.
Corresponding to the inner side (inner side of the structure) and outer side (outer side of the structure), which is extruded or drawn by aluminum and is molded into a heat insulating structure A as shown in FIG. In this case, the widthwise end portion is formed with a concave portion e and a convex portion f into which adjacent heat insulating constituents A are fitted.

Although not shown, the heat insulating structure A may have a straight shape in which the concave portion e and the convex portion f are not formed.

When the recess e shown in FIG. 3 is provided,
The cross-sectional shapes of the inner frame member 3a and the outer frame member 4a are formed symmetrically with respect to the inner and outer directions thereof.
On the outer side of a, first receiving grooves 10a and 11a into which a first locking piece of the exterior surface material 6 described later is inserted are formed in a direction perpendicular to the exterior surface material 6.

Further, the second receiving groove 12 into which the second locking piece of the interior surface material 7 described later is fitted is inserted in the intermediate portion of the main bodies 8a and 9a.
a and 13a are formed in a direction parallel to the exterior surface material 6 and the interior surface material 7.

Further, inside the main bodies 8a and 9a, mounting grooves 14a and 15a, which engage with a later-described heat shield 5, are formed in a direction perpendicular to the heat insulating structure A.

Further, in the case of having the convex portion f shown in FIG. 4, the inner frame member 3b and the outer frame member 4b are formed symmetrically with respect to the inner and outer directions thereof, and are formed outside the main bodies 8b and 9b.
First receiving grooves 10b and 11b, into which the first locking pieces of the exterior surface material 6 to be described later are inserted, are formed in a direction perpendicular to the exterior surface material 6.

Further, the second receiving groove 12 into which the second locking piece of the interior surface material 7, which will be described later, is fitted, is inserted in the intermediate portion between the main bodies 8b and 9b.
b and 13b are formed in a direction parallel to the exterior surface material 6.

Further, inside the main bodies 8b and 9b, mounting grooves 14b and 15b with which a heat shield 5 to be described later engages are formed in a direction perpendicular to the heat insulating structure A.

The above-mentioned heat shield 5 has the mounting grooves 14a, 1 at the inner edges of the inner frame members 3a, 3b and the outer frame members 4a, 4b.
4b and 15a, 15b, and these 3a,
3b and 4a, 4b are joined, and inner frame materials 3a, 3
b and the outer frame members 4a, 4b are heat-insulated, and are formed of a heat-resistant synthetic resin such as vinyl chloride or polycarbonate, and have mounting grooves on both sides of the intermediate base portion 16. Fitting portions 17, 17 that are fitted into 14a, 14b and 15a, 15b are extended.

By changing the length of the heat shield 5, the thickness of the heat insulating structure A changes, for example, 40 m.
An arbitrary size such as m, 50 mm, 75 mm, 100 mm, 125 mm is provided in advance and is formed as shown in FIG. 5, respectively.

In this heat shield 5, the base 16 and the fitting portions 17 and 17 may be formed in a straight shape as shown in FIG. 5 (d). Needless to say, any shape and material may be selected as long as it exhibits a heat insulating effect and has a predetermined strength.

The exterior surface material 6 and the interior surface material 7 described above are
The first and second receiving grooves 10a, 10b and 11a, 11b and 12a, 12b and 13a, 13b provided on the inner frame members 3a, 3b and the outer frame members 4a, 4b are provided at both ends thereof. The second locking pieces 18 and 19 are engaged with each other to cover the surface of the heat insulating material 1. The heat insulating material 1 is formed of a plate material such as metal. 7 corresponds to the inside of the room or the inside of the refrigerator.

The first locking pieces 18 are formed by bending both ends of the exterior surface material 6 inwardly at substantially right angles, and the second locking pieces 19 are connected to both ends of the interior surface material 7. Is composed of a vertical piece 19a that bends inward, and a parallel piece 19b that extends from the vertical piece 19a and bends inward.

Further, in the case of the exterior frame body 2 as shown in FIG. 7, it is composed of the frame members 30, 31 and the exterior face material 6 and the interior face material 7, and these members 30, 31, 6, 6. 7
Due to the frame, the inside is hollow and the cross-sectional shape is formed into a substantially rectangular shape.

These frame members 30 and 31 are in contact with both ends of the heat insulating material 1 and correspond to the inside (inside of the structure) and outside (outside of the structure) of the heat insulating structure A. It is extruded or pultruded by a num, and when it is molded into a heat insulating structure A as shown in FIG. 1, its widthwise end portion has a concave portion e and a convex portion to which adjacent heat insulating components A are fitted. f is formed.

When the recess e shown in FIG. 1 is provided,
The cross-sectional shapes of the frame members 30 and 31 are formed symmetrically with respect to the inside and outside directions, and the locking pieces 32 and 33 for the exterior surface material 6 and the interior surface material 7 are inserted and fitted at both ends thereof. Receiving grooves 34 and 35 are formed in a direction perpendicular to the exterior surface material 6.

The exterior surface material 6 and the interior surface material 7 described above cover both surfaces of the heat insulating body 1 and are formed of a plate material such as metal.

Therefore, the heat insulating structure A of the embodiment of the present invention configured as described above has, for example, a structure thickness of 75 m.
When the exterior frame body 2 shown in FIG. 2 is used in the molding of m, the interior surface material 7 is placed on a lower mold (not shown) for molding, and the pair of left and right outer frame materials 4a, 4b is placed. The second receiving groove 13
By engaging a and 13b with the parallel pieces 19b and 19b of the second locking piece 19 and pulling the outer frame members 4a and 4b outward, the interval is determined in the width direction of the heat insulating structure.

Next, the heat shields 5 and 5 for setting the thickness of the structure
Of the desired size is selected and fitted into the mounting grooves 15a, 15b of the outer frame members 4a, 4b in the fitting portions 17 of the heat shields 5, 5.
Fit in.

Then, the other protruding heat shields 5, 5
To the fitting portion 17 at the mounting groove 14 of the inner frame members 3a and 3b.
When a and 14b are inserted and fitted, a frame body surrounded by four sides is formed.

In this state, pearlite p having a particle diameter of 2.2 mm, to which the heat-resistant adhesive b was attached, was spread evenly and pressed to fill every corner of the exterior frame body 2 to form a pressure of 40 mm. The first heat insulating material 1a is obtained.

At this time, the pearlite p is bonded to each other by the adhesive b, and the outer frame members 4a and 4b and the inner frame member 3 are joined together.
It is adhered to a and 3b and the interior surface material 7 to fill the gap.

Then, the first receiving groove 10 of the inner frame members 3a, 3b.
When the first locking pieces 18, 18 of the exterior surface material 6 are pushed into the a, 10b, the exterior frame body 2 as shown in FIG. 6 is formed,
The cross-sectional shape becomes a substantially rectangular shape, and the first heat insulating material 1 inside
A predetermined cavity 20 is formed in the upper part of a.

Then, a molding upper die (not shown) is placed on the upper part of the exterior frame body 2, and the first heat insulating material 1 is placed in the cavity 20.
When the urethane resin of a is filled, the urethane resin foams and flows to the entire surface of the exterior frame body 2 to evenly spread to form the second heat insulating material 1b. As shown in FIG. A heat insulating structure A having a predetermined size is manufactured.

At the interface with the first heat insulating material 1a, the urethane resin penetrates into the gaps between the pearlite p particles by a predetermined thickness and foams and solidifies to form the first heat insulating material 1a and the second heat insulating material 1b. Is further improved by the impregnation with the urethane resin, and the movement of the fluid flowing through the gaps between the pearlite p particles is also largely prevented at the solidified interface portion.

By selecting the width dimension of the heat shield 5 provided between the inner frame members 3a and 3b and the outer frame members 4a and 4b, for example, as shown in FIGS. It is possible to obtain the heat insulating structure A having different thicknesses.

The second locking piece 19 of the interior surface member 7 is composed of a vertical piece 19a that bends inward and a parallel piece 19b that extends from the vertical piece 19a and bends inward. It can sufficiently withstand the foaming pressure when the heat insulating material 1 filled in the body 2 foams, and the interior surface material 7 or the exterior surface material 6 can be used even when the low temperature / high temperature cycle operation is performed during use. A so-called bimetal phenomenon such as a warp or a bulge does not occur, and the exterior materials 4a and 4b caused by the phenomenon.
Peeling and falling off are prevented.

When this heat insulating structure A is used as a structural material in a low temperature and high temperature room such as a temperature-controlled room or a drying room, first, the effect of heat conduction to the exterior frame body 2 is that the room temperature is the inner frame material 3.
a is transmitted to the outer frame members 3a and 3b and the outer frame members 3a and 3b and the outer frame members 4a and 4b. Therefore, it is possible to prevent dew condensation at the time of low temperature use and heat damage to the human body, articles and the like at the time of high temperature use.

Further, the inner frame members 3a and 3b and the outer frame member 4
Since a and 4b are formed in a symmetrical shape inside and outside, they can be used in common and the cost can be reduced in forming the heat insulating structure A.

In the use of the heat insulating structure A described above, most of the heat insulating / heat resistant action on the heat insulating body 1 is achieved by the first heat insulating material 1a at high temperature and by the second heat insulating material 1b. Since the heat conduction that tries to pass through one heat insulating material 1a can be shielded, for example, when the internal temperature is + 120 ° C, the contact point of the urethane surface is + 80 ° C when the pearlite thermal conductivity is 0.03 Kcal / MH ° C. Fall below.

The residual urethane thermal conductivity is 0.018K.
The heat of + 80 ° C. is cut off at cal / MH ° C., and the surface temperature of the exterior surface material 6 becomes the outside air temperature + 5 ° C., which constitutes the highly airtight and high temperature constituent A.

In this example, if the outer frame 2 is filled with the first heat insulating material 1a and the second heat insulating material 1b to form the heat insulating body 1, as shown in FIG. The high temperature is blocked by the heat insulator 1, and the high heat transmitted to the outside through the exterior frame body 2 is also insulated by the sound insulator 5.

The heat insulating structure A in the embodiment of the present invention
The outer frame body 2 of FIG. 10 can also be used in the same manner as the outer frame body 2 shown in FIG. 10. The heat insulating body 1 formed by filling the inside has the same structure as the above-described example. Yes, the effect is the same.

Next, a second example of the heat insulating structure A according to the embodiment of the present invention will be described. As shown in FIG. 8, this example includes the first, second and third heat insulating materials 1a, 1b, It is composed of a heat insulator 1 made of 1c and an exterior frame body 2 surrounding the heat insulator 1, and is configured to withstand higher temperature use.

The first heat insulating material 1a in the above-mentioned heat insulating body is the same as in the first example described above, and is provided on the entire surface on one side inside the exterior frame body 2 and has a large amount of pearlite formed to a predetermined grain size. It is a layer having a predetermined thickness in which p is bonded to each other by an adhesive b.

The second heat insulating material 1b is also a foamed resin body made of urethane resin, which is provided on the entire surface of the outer frame body 2 on the other side, as in the first example.

The characteristic point of this example is the third heat insulating material 1c, and the above-mentioned first and second heat insulating materials 1a, 1a.
It is provided between b and is formed into a flat plate-like body in contact with both the heat insulating materials 1a and 1b.

The third heat insulating material 1c is composed of a non-combustible material or an inorganic material. For example, as a material, gypsum board, asbestos cement board, calcium silicate, flexible board, calcium carbonate foam heat insulating material, heat resistant felt. Etc., and the thickness thereof can be arbitrarily set to a desired temperature setting.

In the molding of the structure A, the pearlite p with the adhesive b is filled in the exterior mold 2 placed on the lower mold for molding to mold the first heat insulating material 1a, and the upper part thereof is formed. After the third heat insulating material 1c is placed on, the upper mold is covered, and the urethane resin is injected into the cavity 20 (not shown) to foam the second heat insulating material 1b. Insulation 1a,
The heat insulator 1 in which 1b and 1c are connected is formed.

Next, in the heat insulating structure A of the above-mentioned first and second embodiments, as shown in FIGS. 9, 10 and 12, the heat insulating body 1 is made to withstand use at higher temperatures. The shielding member 36 may be interposed inside.

The shield member 36 is made of a heat-resistant or gas-barrier plastic film, an aluminum foil film having a predetermined thickness, or the like. As shown in FIG.
Is to be stretched over the entire length in the lengthwise direction at approximately the middle portion thereof, and is placed on the pearlite layer which is partially filled during the filling of pearlite p, and the remaining pearlite p is further filled. The heat insulator 1 is formed by.

As a result, the fluid such as highly heated air, which is affected by the inside of the chamber and tends to flow from the gaps formed between the pearlite p particles, is shielded by the above-mentioned shielding member 36, and the exterior frame 2 The heat conduction to the exterior surface material 6 at is reduced as much as possible.

Further, as shown in FIG. 10, the shielding member 36 may be provided in parallel inside the first heat insulating material 1a in parallel with the length direction of the structure A so as to be doubled. It is possible to exert a further heat insulation effect,
The shielding member 36 may be provided in three or more layers, and is appropriately selected according to the specification conditions of the structure A.

In this example, the first heat insulating material 1a made of pearlite p is formed to a thickness of 50 mm in the heat insulating structure A with the shielding member 36 interposed therebetween, and the second heat insulating material 1b made of urethane resin is formed. By forming it to a thickness of 25 mm and configuring the structure thickness to 75 mm, the internal temperature of the refrigerator is +15.
At 0 ° C, pearlite thermal conductivity is 0.03 Kcal
The flow of the fluid is suppressed by the provision of the shielding member 36 at the contact surface between the first heat insulating material 1a and the second heat insulating material 1b at / MH ° C., and the temperature decreases to + 15 ° C.
In the case where is not provided, an excellent heat insulating effect was exhibited as compared with the example in which the temperature was raised to + 80 ° C. or higher.

In FIG. 11 and FIG. 12, reference numeral 37 denotes a reinforcing member which is embedded in the heat insulating member 1 and made of a solid material such as metal, and has a cross-sectional shape of a chevron shape (adopted in this embodiment) or H.
It is formed in a mold or L shape and is provided over substantially the entire length in the height direction of the heat insulating structure A.

The reinforcing member 37 prevents the bending caused by the bimetal phenomenon due to the thermal deformation of the structural body A from the high temperature side to the low temperature side, and is provided at a plurality of positions at intervals.

The shield member 36 and the reinforcing member 37 are used as described above.
As shown in FIG. 12, it may be installed side by side, and further, the heat insulating body 1 which is the second example described above is configured into first, second and third heat insulating materials 1a, 1b and 1c. Even in such a case, both or one of the shielding member 36 and the reinforcing body 37 may be incorporated.

Thus, the heat insulating structure A according to the embodiment of the present invention.
Shows a large heat insulating effect by having a double structure of the first and second heat insulating materials 1a and 1b. Further, regarding each example of the thickness of the structure, it will be described below. Table 1
become that way.

[0076]

[Table 1]

Next, a method for manufacturing the heat insulating structure A of the second example of the present invention will be described.

In this example, as shown in FIGS.
As the heat insulating body 1 is shown as a single layer in the exterior frame body 1, it surrounds the periphery and has a hollow portion 20 inside (not shown in the figure, see FIG. 6 in the first example). ) Is formed, and the heat insulating body 1 is formed by filling and molding the entire cavity 20 of the exterior frame body 2.

The heat insulating body 1 is filled with granular perlite p to which the adhesive b is attached, and the perlite p
The pearlite p is integrally formed by bonding the pearlite p and the exterior frame 2 together.

In this heat insulating structure A, the outer frame 2 is
Not only the structure shown in FIGS. 13 and 14 or FIG. 2 but also the structure shown in FIGS. 15 and 16 can be adopted.

In the concrete molding of the heat insulating structure A of this example, in the case shown in FIGS. 13 and 14, the frame member 30,
When the frame is formed by 31 and the exterior surface material 6 and the interior surface material 7, the exterior frame body 2 in which the hollow portion 20 (not shown) is formed is formed, and has an opening at the top.

From the opening of this exterior frame 2 to the cavity 20,
If the pearlite p and the low-viscosity adhesive b are mixed and flowed, the pearlite p is spread to every corner and becomes solid after the adhesive b is solidified.

When the perlite p does not reach the details of the exterior frame body 2 during the filling, the perlite p alone is filled first and the exterior frame body 2 or the perlite p filling portion is vibrated, or later. Then, the low-viscosity adhesive agent b is poured and fixed.

Although not shown in the drawing, this filling can also forcefully send the pearlite p by means of a pump for feeding air or the like, so that every corner of the exterior frame 2 is evenly filled. Is.

As a result, the perlite itself does not undergo a chemical change with the adhesive and is naturally cured without applying foaming pressure and is automatically adhered to the interior frame 2 as well. In addition to the heat insulating structure A having high strength being obtained, a sufficient heat insulating effect is exhibited in use at a temperature of + 80 ° C. or higher.

The heat insulating structure A shown in FIGS.
In the figure, the exterior frame 2 is a predetermined structure, for example, an integrally formed one that constitutes a temperature-controlled room, and the exterior surface material 6 and the interior surface material 7 are provided in the wall portion, The heat insulating body 1 is filled with pearlite p by the method of any of the above-described examples to form a cavity inside thereof.

As a result, compared with the case where only urethane or silicon is used as the heat insulating material in the related art, it is not necessary to attach or detach various jigs to the foaming frame to cope with the foaming pressure. The time, jigs, etc. can be omitted, and the cost can be greatly reduced, and the strength of the integrally-constructed structure A is improved.

[0088]

According to the present invention configured as described above, the first heat insulating material can exert a sufficient heat insulating effect to shut off the temperature inside the refrigerator even if the specifications are met at high temperatures. The second heat insulating material shields heat conduction, and a high heat insulating property can be obtained by a synergistic effect with the first and second heat insulating materials. By interposing the third heat insulating material between the two, a further heat insulating effect can be obtained.

In particular, since pearlite particles are used for the first heat insulating material, the pearlite spreads evenly to the corners of the outer frame having a complicated shape, and the second heat insulating material, which is a foamed resin, is filled. At this time, unlike the conventional case, the resin is prevented from entering the heat insulating material layer, and the disadvantage due to the secondary foaming does not occur.

Further, since the shielding member is provided in the intermediate portion of the first heat insulating material in the heat insulation, the movement of the fluid which tends to flow between the pearlite particles is shielded to reduce the heat conduction to the outside of the refrigerator. You can

Further, by incorporating the reinforcing body in the height direction of the heat insulating structure, the bimetal phenomenon due to severe temperature change can be suppressed as much as possible, and inconveniences such as warping and bending can be eliminated. And the like.

[Brief description of the drawings]

FIG. 1 is a perspective view, partly omitted, showing a heat insulating structure formed by a method of manufacturing a heat insulating structure according to a first example of the present invention.

FIG. 2 is a cross-sectional view with a part omitted in FIG.

FIG. 3 is an exploded perspective view showing a part of the exterior frame body on the recess side in FIG.

FIG. 4 is an exploded perspective view showing a part of the exterior frame body on the convex side in FIG.

5 is an explanatory view showing each example of the heat shield in FIG. 1. FIG.

FIG. 6 is a cross-sectional view with a part omitted showing a state where the outer frame body in FIG. 1 is filled with the first heat insulating material.

7 is a cross-sectional view showing another example of the exterior frame body in FIG. 1 with a part omitted.

8 is a cross-sectional view with a part omitted showing another example of the heat insulator in FIG.

9 is a cross-sectional view with a part omitted showing an example in which a shielding member is provided on the heat insulating structure in FIG.

10 is a cross-sectional view with a part omitted showing an example in which the shielding member in FIG. 9 is provided in a plurality of layers.

11 is a cross-sectional view with a part omitted showing an example in which a reinforcing body is provided in the heat insulating structure in FIG.

12 is a cross-sectional view with a part omitted showing an example in which a shielding member and a reinforcing body are provided in the heat insulating structure in FIG.

FIG. 13 is a cross-sectional view with a part omitted showing a heat insulating structure formed by a method for manufacturing a heat insulating structure according to a second example of the present invention.

14 is a cross-sectional view with a part omitted showing an example in which a reinforcing body is embedded in the heat insulating structure in FIG.

FIG. 15 is a perspective view of a main part showing another example in FIG.

16 is a cross-sectional view showing an enlarged part of the heat insulating structure in FIG.

FIG. 17 is a cross-sectional view with a part omitted showing an outline of a conventional heat insulating structure.

[Explanation of symbols]

 A heat insulation constituent body 1 heat insulation body 2 exterior frame body 1a first heat insulation material 1b second heat insulation material 1c third heat insulation material p pearlite b adhesive agent 36 shielding member 37 reinforcement body

Claims (6)

[Claims] 1. A heat insulating structure comprising a heat insulating body made of first and second heat insulating materials and an outer frame surrounding the heat insulating body, wherein the first heat insulating material in the heat insulating body is the outer sheath. It is a layer having a predetermined thickness, which is provided on one entire surface of the inside of the frame body and has a large number of perlites formed to have a predetermined grain size, which are bonded to each other by an adhesive. A heat insulating structure, which is a foamed resin body provided adjacent to and adjacent to the other side inside the exterior frame. 2. A heat insulating structure comprising a heat insulating body comprising first, second and third heat insulating materials, and an outer frame surrounding the heat insulating body, wherein the first heat insulating material in the heat insulating body is ,
A second heat insulating material is a layer having a predetermined thickness, which is provided on one entire surface of the inside of the exterior frame body and is bonded to each other by an adhesive with a large amount of perlite formed to have a predetermined grain size. Is a foamed resin body provided on the entire surface inside the other side, and the third heat insulating material is a plate-like body provided between the first and second heat insulating materials and in contact with both of these heat insulating materials. And a heat insulating structure. 3. The first heat insulating material in the heat insulating body is a layer having a predetermined thickness, which is provided on the entire surface on one side inside the exterior frame body, and a large number of perlites formed to have a predetermined grain size are bonded to each other with an adhesive. 3. The shielding member for shielding the movement of the fluid to the second heat insulating material is provided at least at one place in parallel to the inside of the layer in the length direction. Thermal insulation structure. 4. The heat insulating structure according to claim 1, wherein the heat insulating body is provided with a reinforcing body embedded in a vertical direction. 5. A heat insulating structure comprising a heat insulating body comprising first and second heat insulating materials, and an outer frame surrounding the heat insulating body, wherein the inside of the outer frame is facing down. After the perlite with the adhesive adhered to the exterior frame is spread to a predetermined thickness and pressed to form the first heat insulating material, urethane resin is injected into the upper part of the first heat insulating material to cause foaming, and the first heat insulation is performed. A method for manufacturing a heat insulating structure, characterized in that the second heat insulating material is formed integrally with the material. 6. An adiabatic structure comprising an exterior frame body surrounding the periphery of which a cavity is formed, and a heat insulator formed by filling and molding the entire cavity of the exterior frame body. The heat insulating body is formed by filling granular perlite to which an adhesive is adhered, and integrally forming the perlite by bonding the perlites and joining the perlite to the exterior frame body. Production method.