KR102749830B1 - Fireproof composite panel - Google Patents

Abstract

The present invention relates to a fire-resistant composite panel having enhanced fire resistance by using a material with a high mineral content.
To this end, the present invention provides a fire-resistant composite panel comprising a panel core formed in a wide panel shape, which is made of natural materials and is non-combustible, an adhesive applied to the upper and lower surfaces of the panel core, and sheets bonded to the upper and lower surfaces of the panel core by the adhesive, respectively, wherein a groove is formed on at least one of the upper and lower surfaces of the panel core.

Description

Fireproof composite panel {Fireproof composite panel}

The present invention relates to a fire-resistant composite panel, and more particularly, to a fire-resistant composite panel having enhanced fire resistance by using a material having a high inorganic content.

Architectural panels manufactured to certain specifications can be classified into those for formwork, non-load-bearing walls, and load-bearing walls. Such architectural panels can be manufactured using various building materials.

Recently, prefabricated buildings (houses, factories, warehouses, etc.) are being built in large quantities, and sandwich panels using Styrofoam are being widely used to reduce production costs and speed up construction.

Conventional architectural sandwich panels are structured so that Styrofoam is placed in the center for insulation and soundproofing, and thin metal plates are installed to cover both sides or the entire outer surface to protect the Styrofoam.

However, conventional architectural sandwich panels are not only vulnerable to fire as fire can easily spread when a fire breaks out, but also have a structural problem in that the Styrofoam easily melts due to the high thermal conductivity of the metal plate, releasing harmful gases, which can cause human accidents such as gas asphyxiation.

Republic of Korea Patent Publication No. 10-2019-0031969 (Title of invention: Sandwich panel for construction, Publication date: 2019.03.27)

In order to solve the above-described problems, the present invention aims to provide a fire-resistant composite panel with enhanced fire resistance by using a material with a high inorganic content.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the description below.

In order to solve the above-described problem, the present invention provides a fire-resistant composite panel including a panel core, a first sheet bonded to an upper surface of the panel core, and a second sheet bonded to a lower surface of the panel core, wherein the panel core is a CRC board.

Here, an adhesive is further included that is applied to the upper and lower surfaces of the panel core, and the first sheet and the second sheet can be bonded to the upper and lower surfaces of the panel core, respectively, by the adhesive.

Additionally, a groove may be formed on at least one of the upper and lower surfaces of the panel core.

The fire-resistant composite panel according to the present invention has the following effects.

First, as a groove is formed in the panel core, an air gap is formed in the groove, preventing high temperatures from being transmitted to the panel core, and the weight of the panel core is reduced, which has the advantage of making it easier to attach to walls and ceilings.

Second, there is an advantage of enhanced fire resistance by using CRC board or magnesium board, which are materials with high mineral content.

Third, since the panel core is made of natural materials, it has the advantage of preventing human accidents such as gas suffocation due to the emission of harmful gases.

FIG. 1 is a drawing illustrating the configuration of one embodiment of a fire-resistant composite panel according to the present invention.
FIG. 2 is a drawing illustrating a first embodiment of a core material of a fire-resistant composite panel according to the present invention illustrated in FIG. 1.
FIG. 3 is a drawing illustrating a second embodiment of a core material of a fire-resistant composite panel according to the present invention illustrated in FIG. 1.
FIG. 4 is a drawing illustrating an area to which a fire-resistant composite panel according to the present invention illustrated in FIG. 1 is attached.
FIG. 5 is a drawing showing a third embodiment of a core material according to an area to which a fire-resistant composite panel according to the present invention shown in FIG. 4 is attached.
FIG. 6 is a drawing showing a fourth embodiment of a core material according to an area to which a fire-resistant composite panel according to the present invention shown in FIG. 4 is attached.
FIG. 7 is a drawing showing a fifth embodiment of a core material according to an area to which a fire-resistant composite panel according to the present invention illustrated in FIG. 4 is attached.
FIG. 8 is a drawing showing a sixth embodiment of a core material according to an area to which a fire-resistant composite panel according to the present invention is attached, as shown in FIG. 4.
FIG. 9 is a drawing illustrating the configuration of another embodiment of a fire-resistant composite panel according to the present invention.
FIG. 10 is a drawing showing the configuration of another embodiment of a fire-resistant composite panel according to the present invention.

The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and the present embodiments are provided only to make the disclosure of the present invention complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

The terminology used in this specification is used to describe specific embodiments and is not intended to limit the invention. As used herein, the singular form may include the plural form unless the context clearly indicates otherwise. Also, whenever a part throughout this specification is said to "include" a certain component, it means that it may further include other components unless specifically stated otherwise.

When it is said that a component is “connected” or “connected” to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components in between. On the other hand, when it is said that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between. Other expressions intended to describe the relationship between components should be interpreted similarly.

All terms, including technical or scientific terms, used in this specification have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant art, and shall not be interpreted in an idealized or overly formal sense, unless explicitly defined in this specification.

FIG. 1 is a drawing showing the configuration of a fire-resistant composite panel according to the present invention. According to FIG. 1, the fire-resistant composite panel according to the present invention includes a panel core (100), an adhesive (200), a first sheet (310), and a second sheet (320).

The above panel core (100) is made of a material containing natural materials, is non-combustible and fire-resistant, and is formed into a wide panel shape.

The material of the above panel core (100) is formed of a non-combustible flat plate containing cellulose fiber, which is a natural pulp, and may be a CRC board, which is an environmentally friendly building material, or a magnesium board, which is a non-combustible natural inorganic mixed material containing magnesium, wood flour, and lulite.

In addition, the material of the panel core (100) is an environmentally friendly material and can be replaced with a material that is non-flammable and fire-resistant.

Since the above panel core material (100) is composed of a material with a high inorganic content, the composite panel can secure performance that is higher than that of a semi-fireproof material, thereby reducing casualties due to fire in a building.

A groove (110) is formed on at least one of the upper and lower surfaces of the panel core (100), and the surface of the area where the groove (110) is not formed on the upper and lower surfaces of the panel core (100) is formed as an adhesive portion (120) to which the first sheet (310) and the second sheet (320) described below are attached.

As a groove (110) is formed on at least one of the upper and lower surfaces of the panel core (100), an air gap is formed in the groove (110), preventing high temperature from being directly transmitted from the first sheet (310) and the second sheet (320) to the panel core (100), and the weight of the panel core (100) is reduced, making it easy to attach to a wall and ceiling.

Various examples of the groove (110) formed in the panel core (100) will be described later.

The above adhesive (200) is applied to the upper and lower surfaces of the panel core (100), and specifically, is applied to the bonding portion (120) of the panel core (100). At this time, it is preferable that the adhesive (200) is a non-flammable adhesive.

The first sheet (310) is bonded to the bonding portion (120) on the upper surface of the panel core (100) by the adhesive (200), and the second sheet (320) is bonded to the bonding portion (120) on the lower surface of the panel core (100) by the adhesive (200).

At this time, it is preferable that the first sheet (310) and the second sheet (320) be composed of thin flat plates made of a metal material such as aluminum, steel, or stainless steel.

FIG. 2 is a drawing illustrating a first embodiment of a panel core of a fire-resistant composite panel according to the present invention. The grooves formed in the panel core are configured in multiple numbers, and can be formed with the same shape, size, and depth.

For example, as shown in the diagram (a) of Fig. 2, the grooves (110a) are formed in a circular shape and have the same size and depth, and the grooves (110a) can be distributed throughout the panel core (100a) at a set interval.

Alternatively, as illustrated in (b) of Fig. 2, the grooves (110b) may be formed in a square shape, formed with the same size and depth, and the grooves (110b) may be spaced apart at a certain interval and distributed throughout the panel core (100b).

Alternatively, as illustrated in (c) of Fig. 3, the grooves (110c) may be formed in a straight line, formed with the same size and depth, and the grooves (110c) may be spaced apart at a certain interval and distributed throughout the panel core (100c).

That is, the grooves (110) are formed in multiple shapes, such as circular, polygonal, linear, and zigzag shapes, and are arranged at regular intervals, thereby acting as an air gap throughout the panel core (100), thereby preventing high temperatures from being directly transmitted from the first sheet (310) and the second sheet (320) to the panel core (100). In addition, as the grooves (110) are formed in the panel core (100), the weight of the panel core (100) is reduced, making it easy to attach to a wall and ceiling.

FIG. 3 is a drawing showing a second embodiment of a panel core (100d) of a fire-resistant composite panel according to the present invention, wherein the panel core (100d) is formed with a plurality of grooves (110d), and the grooves (110d) become smaller in size or shallower in depth as they move from the center of the panel core (100d) toward the edge of the panel core (100d).

That is, the above-mentioned home portion (110d) is composed of a plurality of home portions, and each home portion (110d) can be formed with a different size and depth depending on the area located in the panel core material (100d).

For example, as shown in FIG. 3, all of the grooves (110d) may be formed in a circular shape, but the size of the grooves (110d) may become smaller as they move from the center of the panel core (100d) toward the edge of the panel core (100d).

As another example, although not shown in the drawing, the groove portion may be formed in the same shape, but its depth may become shallower as it goes from the center of the panel core toward the edge of the panel core.

Alternatively, although not shown in the drawing, the grooves may be formed with the same shape, but the spacing between the grooves in the central region of the panel core may be formed more densely than the spacing between the grooves in the edge region of the panel core.

That is, the area occupied by the groove can be formed wider and larger in the central area of the panel core than in the edge area of the panel core.

FIG. 4 is a drawing illustrating an area to which a fire-resistant composite panel according to the present invention is attached. The drawing illustrates that a fire-resistant composite panel (1000A, 1000B, 1000C) according to the present invention is attached to a center portion (A) of a ceiling, a wall portion (B), and a corner portion (C) within a building structure.

At this time, the center (A) of the ceiling refers to a location where the probability of flames directly reaching the area in the event of a fire is low, and the wall surface (B) and corner portion (C) of the ceiling refer to locations where the probability of flames directly reaching the area in the event of a fire is high.

FIG. 5 is a drawing showing a fourth embodiment of a panel core according to an area to which a fire-resistant composite panel according to the present invention is attached. FIG. 5 (a) is a drawing showing an example of a panel core (100e) of a fire-resistant composite panel attached to the center of a ceiling, and FIG. 5 (b) and (c) are drawings showing examples of a panel core (100f, 100g) of a fire-resistant composite panel attached to a wall surface of a ceiling.

As shown in (a) and (b) of FIG. 5, the grooves (110e, 110f) formed in the panel core (100e, 100f) of the fire-resistant composite panel according to the present invention are formed in a square shape and are arranged at regular intervals.

At this time, the size of the groove (110e) formed in the panel core (100e) shown in (a) of Fig. 5 is formed larger than the size of the groove (110f) formed in the panel core (100f) shown in (b) of Fig. 5.

That is, since the center of the ceiling is less likely to be directly touched by flames in the event of a fire, and thus it is efficient to minimize the heat transferred from the sheet (310 and 320 of FIG. 1) to the panel core (100e), it is preferable that the groove portion (110e) be formed large, as shown in FIG. 5 (a), and since the wall surface of the ceiling is more likely to be directly touched by flames in the event of a fire, it is preferable that a non-combustible material be densely arranged to directly prevent the spread of fire, rather than forming an air gap to minimize heat transfer, as shown in FIG. 5 (b).

In addition, as shown in (c) of FIG. 5, the groove (110g) formed in the panel core (100g) of the fire-resistant composite panel attached to the wall surface of the ceiling is formed such that the size of the groove (110g) becomes larger as it goes from the wall surface of the ceiling to the center, thereby simultaneously preventing fire spread and minimizing heat transfer in one panel core (100g), as shown in FIG. 3.

FIG. 6 is a drawing showing a fifth embodiment of a panel core material according to an area to which a fire-resistant composite panel according to the present invention is attached.

Figure 6 (a) is a drawing showing an example of a panel core (100h) of a fire-resistant composite panel attached to the center of a ceiling, and Figures 6 (b) and (c) are drawings showing examples of a panel core (100i, 100j) of a fire-resistant composite panel attached to a wall portion of a ceiling.

As shown in (a) and (b) of FIG. 6, the grooves (110h, 110i) formed in the panel core (100h, 100i) of the fire-resistant composite panel according to the present invention are formed in a straight line and arranged at regular intervals.

At this time, the size of the groove (110h) formed in the panel core (100h) shown in (a) of Fig. 6 is formed larger than the size of the groove (110i) formed in the panel core (100i) shown in (b) of Fig. 6.

That is, since the center of the ceiling is less likely to be directly touched by flames in the event of a fire, and thus it is efficient to minimize the heat transferred from the sheet (310 and 320 of FIG. 1) to the panel core (100i), it is preferable that the groove portion (110i) be formed large, as shown in FIG. 6 (a), and since the wall surface of the ceiling is more likely to be directly touched by flames in the event of a fire, it is preferable that a non-combustible material be densely arranged to directly prevent the spread of fire, rather than forming an air gap to minimize heat transfer, as shown in FIG. 6 (b).

In addition, as shown in (c) of Fig. 6, the groove (110j) formed in the panel core (100j) of the fire-resistant composite panel attached to the wall surface of the ceiling is formed such that the size of the groove (110j) becomes larger as it goes from the wall surface of the ceiling to the center, thereby simultaneously preventing fire spread and minimizing heat transfer in one panel core (100j).

FIG. 7 is a drawing showing a sixth embodiment of a panel core material according to an area to which a fire-resistant composite panel according to the present invention is attached.

Fig. 7 (a) is a drawing showing an example of a panel core (100k) of a fire-resistant composite panel attached to the center of a ceiling, and Figs. 7 (b) and (c) are drawings showing examples of a panel core (100l. 100m) of a fire-resistant composite panel attached to a wall portion of a ceiling.

As shown in (a) and (b) of FIG. 7, the grooves (110k, 110l) formed in the panel core (100k, 100l) of the fire-resistant composite panel according to the present invention are formed in a circular, polygonal or linear shape and are arranged at a predetermined interval, and as shown in FIG. 7, they may be formed in shapes of the same size, or as shown in the embodiments described in FIGS. 5 and 6, they may be formed in shapes of different sizes.

At this time, the depth of the groove (110k) formed in the panel core (100k) shown in (a) of Fig. 7 is formed deeper than the depth of the groove (110l) formed in the panel core (100l) shown in (b) of Fig. 6.

That is, since the center of the ceiling is less likely to be directly touched by flames in the event of a fire, and thus it is efficient to minimize the heat transferred from the sheet (310 and 320 of FIG. 1) to the panel core (100k), it is preferable that the groove (110k) be formed deeply, as shown in (a) of FIG. 7, and since the wall surface of the ceiling is more likely to be directly touched by flames in the event of a fire, it is preferable that a non-combustible material be densely arranged to directly prevent the spread of fire, rather than forming an air gap to minimize heat transfer, as shown in (b) of FIG.

In addition, as shown in (c) of Fig. 7, the groove (110m) formed in the panel core (100m) of the fire-resistant composite panel attached to the wall surface of the ceiling is formed so that the depth of the groove (110m) becomes deeper as it goes from the wall surface of the ceiling to the center, thereby simultaneously preventing fire spread and minimizing heat transfer in a single panel core (100m).

FIG. 8 is a drawing showing a sixth embodiment of a core material according to an area to which a fire-resistant composite panel according to the present invention is attached as shown in FIG. 4.

FIG. 8 is an example of a case where the fire-resistant composite panel according to the present invention, as shown in FIG. 4, is attached to a corner. When the fire-resistant composite panel according to the present invention is formed in a square shape, the two surfaces connected to each other are in contact with the wall surface, so that when a fire breaks out, there is a high probability that flames will directly contact it, and since the center of the ceiling has a low probability that flames will directly contact it when a fire breaks out, the groove (110n) formed in the panel core (100n) of the fire-resistant composite panel attached to the wall surface of the ceiling is formed so that the size of the groove (110n) becomes larger as it goes from the wall surface connected to the ceiling to the center, thereby simultaneously preventing the spread of fire and minimizing heat transfer in a single panel core (100n).

Of course, as shown in Fig. 8, when the fire-resistant composite panel according to the present invention is attached to a corner, the groove formed in the panel core may be formed so that the diameter of the groove increases as it goes from the wall surface connected to the ceiling to the center, the depth of the groove increases, or the distance between the grooves increases.

FIG. 9 is a drawing showing the configuration of another embodiment of a fire-resistant composite panel according to the present invention. Another embodiment of a fire-resistant composite panel according to the present invention includes a panel core (100'), an adhesive (200'), and first and second sheets (310', 320').

At this time, in another embodiment of the fire-resistant composite panel according to the present invention, when the groove (110') formed in the panel core (100') is formed to a depth below a certain level, the adhesive (200') is inserted and applied not only to the adhesive portion (120') but also to the groove (110').

Accordingly, the amount of adhesive that bonds the panel core (100') and the first and second sheets (310', 320') increases, and since the adhesive is inserted and applied not only to the bonding portion (120') but also to the groove portion (110'), the bonding area increases, thereby improving the adhesive strength between the panel core (100') and the first and second sheets (310', 320').

In addition, the features of the panel core (100'), adhesive (200'), and the first and second sheets (310', 320') included in the fire-resistant composite panel according to another embodiment of the present invention correspond to the panel core (100), adhesive (200), and the first and second sheets (310, 320) of the above-described embodiment of the fire-resistant composite panel according to the present invention, and therefore, a detailed description thereof is omitted.

FIG. 10 is a drawing showing the configuration of another embodiment of a fireproof composite panel according to the present invention. Another embodiment of a fireproof composite panel according to the present invention includes a panel core (100''), an adhesive (200''), and first and second sheets (310'', 320'').

At this time, in another embodiment of the fire-resistant composite panel according to the present invention, the groove (110'') formed in the panel core (100'') may be formed in at least one of the upper and lower surfaces of the panel core (100''), and the grooves (110'') formed on the upper and lower surfaces of the panel core (100'') may be formed differently from each other.

For example, as shown in the diagram (a) of Fig. 10, a groove (110'') may be formed only on the lower surface among the upper and lower surfaces of the panel core (100'').

The lower surface of the panel core (100'') may be an area that directly comes into contact with flame or a high temperature due to flame, and since the groove (110'') is formed only on the lower surface of the panel core (100''), heat transfer is minimized primarily through the air gap formed by the groove (110'') on the lower surface of the panel core (100''), and since the upper surface of the panel core (100'') does not have the groove (110'') formed, a non-combustible material is densely arranged, thereby preventing the spread of fire.

As another example, as shown in (b) of Fig. 10, the grooves (110'') formed on the upper and lower surfaces of the panel core (100'') may be formed differently from each other.

That is, depending on the area where the panel core (100'') is placed, the groove (110'') on the lower surface of the panel core (100'') may be formed with a different shape and depth than the groove (110'') on the upper surface of the panel core (100''), and may be formed with a different volume. Examples of the groove (110'') formed on the upper and lower surfaces of the panel core (100'') may be replaced with examples of the grooves in the embodiments described above.

In addition, the features of the panel core (100''), adhesive (200''), and the first and second sheets (310'', 320'') included in the fire-resistant composite panel according to another embodiment of the present invention correspond to the panel core (100), adhesive (200), and the first and second sheets (310, 320) of the above-described embodiment of the fire-resistant composite panel according to the present invention, and therefore, a detailed description thereof is omitted.

Although the preferred embodiments of the present invention have been described and illustrated with reference to the drawings as described above, the present invention is not limited to the specific embodiments described above, and various modifications may be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. In addition, these modified embodiments should not be understood individually from the technical idea or prospect of the present invention.

1000A, 1000B: Fire-resistant composite panel
100, 100a, 100b, 100c, 100d, 100e, 100f, 100g, 100h, 100i, 100j, 100k, 100l, 100m, 100n, 100', 100'': Panel core
110, 110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j, 110k, 110l, 110m, 110n, 110', 100'': Groove
120, 120', 120'': Adhesive
200, 200', 200'': Adhesive
310, 310', 310'': Sheet 1
320, 320', 320'': 2nd sheet

Claims (3)

panel core;
A first sheet bonded to the upper surface of the panel core; and
A second sheet coupled to the lower surface of the panel core material; including:
The above panel core material is any one of CRC board, magnesium board or non-combustible panel containing cellulose fiber,
The above first sheet and the above second sheet are thin plates made of metal material,
A groove is formed on at least one of the upper and lower surfaces of the panel core material,
A fire-resistant composite panel characterized in that the above-mentioned grooves are formed in multiple numbers, and their size or depth becomes smaller as they go from the center of the panel core to the edge of the panel core.
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