JP4891499B2 - Soundproofing material for combustion appliance and method for manufacturing the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a soundproofing material provided for reducing noise in a combustion appliance (fuel is not limited, for example, gas, petroleum, etc.) such as a hot water heater, a boiler, and a heating appliance, and a manufacturing method thereof. is there.
[0002]
[Prior art and problems to be solved by the invention]
Conventionally, in a combustion appliance such as a hot water heater, in order to prevent the noise generated from the combustion source from leaking to the outside, a soundproofing material is assembled inside the outer plate of the combustion appliance so as to face the noise source. Yes. 6A to 6D show a cross-sectional structure of a soundproof material used for the front outer plate 30 of the hot water heater.
[0003]
In (a), since only the glass wool 31 as the sound absorbing material is disposed, the glass wool 31 is scattered when the apparatus is used, and the deterioration is quick. Furthermore, scattering occurs during the assembling work of the glass wool 31, which causes deterioration of the assembling work environment.
(B) is a soundproofing material in which a glass cloth 32 is bonded to the noise source facing surface 31 a of the glass wool 31. This can only prevent scattering / degradation of the glass wool 31 from the noise source facing surface 31a during use, and cannot prevent scattering from the peripheral end surface 31b without the glass cloth 32 and the outer plate facing surface 31c. The scattering of can not be prevented at all.
(C) is a soundproof material obtained by impregnating the sealing agent 33 into the noise source facing surface 31a and the outer plate facing surface 31c of the glass wool 31 to prevent scattering. The effect of preventing the scattering by the sealing agent 33 is not sufficient, and scattering occurs from the peripheral end surface 31b without the sealing agent 33.
(D) is a soundproof material in which a synthetic fiber nonwoven fabric 35 is driven into the noise source facing surface 31a of the glass wool 31 by a needle punch. This is caused by scattering of the glass wool 31 from the peripheral end surface 31b without the synthetic fiber nonwoven fabric 35 and the outer plate facing surface 31c.
[0004]
The object of the present invention is to solve the above-mentioned problems and to prevent the scattering of the fibers of the sound absorbing material to improve the assembling work environment and assembling workability and to prevent the sound absorbing material from being deteriorated. An object of the present invention is to provide a material and a method of manufacturing the soundproofing material that has high manufacturing efficiency and can reduce the manufacturing time.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention employs the following means (1) and (2).
(1) In the soundproofing material assembled inside the outer plate so as to face the noise source of the combustion appliance, the mat-like sound absorbing material mainly made of glass wool and the sound pass through but the glass wool of the sound absorbing material does not pass through substantially. The first scattering prevention member formed in a tray shape that covers the noise source facing surface and the peripheral end surface of the sound absorbing material with only glass cloth without adhering and has a peripheral flange portion, and aluminum in which the glass wool of the sound absorbing material does not substantially pass. A second anti-scattering member formed in a flat shape covering the surface of the sound absorbing material facing the outer plate only by the foil, and heat fusion between the noise source facing surface of the sound absorbing material and the peripheral end surface and the first anti-scattering member. No adhesive film is interposed, and a heat-sealing film is interposed between the outer plate facing surface of the sound absorbing material and the peripheral flange portion of the first scattering prevention member and the second scattering prevention member, and the first scattering Prevention And the peripheral portion of the peripheral flange portion and a second scatter preventing member wood are joined by heat fusion by heat sealing films, have been entirely of sound absorbing material in the first scatter preventing member and a second scatter preventing member is encapsulated It is characterized by that.
[0007]
(2) In the manufacturing method of the skin soundproofing material to be assembled on the inside of such facing the noise source of combustion appliances, sound absorbing material only primarily by aluminum foil glass wool mat-like sound absorbing material made of glass wool does not substantially pass A heat-fusion film is laid on the second anti-scattering member formed in a flat shape covering the surface facing the outer plate, a sound- absorbing material is placed on the heat-fusion film, and the heat-fusion film is placed on the sound-absorbing material. Without covering the surface, cover the second anti-scattering member and the sound-absorbing material with a glass cloth that passes sound but does not substantially pass through the glass wool of the sound-absorbing material. heat by heat-sealing film and a periphery of the molded tray shaped first scatter preventing member having a peripheral flange portion, the peripheral flange portion of the first scatter preventing member and a second scatter preventing member covers without Method for producing a soundproofing material of the combustion appliances for causing joined by.
[0008]
The method of “molding” is not particularly limited, and examples thereof include a method in which the peripheral portion of the glass cloth is pushed around the peripheral end surface of the sound absorbing material with a frame that is slightly larger than the peripheral size of the sound absorbing material. This frame is preferably heated by a built-in or external heating means.
[0009]
In addition, “joining” is a heat generated by melting the heat-sealing film interposed between the peripheral flange portion of the first anti-scattering member and the peripheral portion of the second anti-scattering member with the heat of the heated frame. It is preferable that it is fusion-bonded.
[0010]
Furthermore, a plurality of sound absorbing materials are placed on an aluminum foil having a size capable of taking a plurality of second scattering prevention members, and a glass cloth having a size capable of taking a plurality of first scattering preventing members is placed on the second scattering preventing member and the sound absorbing material. Forming a plurality of first anti-scattering members, joining the peripheral flange portion of each first anti-scattering member and the peripheral portion of each second anti-scattering member to form a plurality of soundproofing materials, and then separating each soundproofing material It is preferable in terms of manufacturing efficiency.
[0011]
Examples of the “sound absorbing material”, the “first scattering prevention member”, and the “second scattering prevention member” in the above (1) and (2) are illustrated below.
"Sound absorbing material" is a base material for soundproofing materials, and the material of the fiber is not particularly limited, but heat resistance such as glass fiber (glass wool, glass fiber), rock wool, ceramic fiber (silica, alumina, etc.) Inorganic fibers, metal fibers such as stainless wool, and the like, and one or a combination of two or more selected from these can be exemplified. Further, organic fibers may be mixed with these inorganic fibers or metal fibers. The thickness of the sound absorbing material is not particularly limited, but the stronger the thickness, the better the sound absorbing performance.
[0012]
"The first scatter preventing member" are intended to prevent the scattering of fibers from the noise source facing surface and peripheral edge surface of the sound absorbing material, as a glass cloth is not particularly limited, weaving grayed Las fiber yarns It was a cross-like. Weight per unit area of the glass Rasukurosu is preferably 20 to 200 g / ^{m 2.}
[0013]
"Second scatter preventing member" are intended to prevent the scattering of fibers from the outer plate facing surface of the sound absorbing material, the aluminum foil is not particularly limited, the thickness of that is preferably 5~100μm .
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is embodied in a soundproof material for a hot water heater and a method for manufacturing the same will be described. Note that the materials, configurations, numerical values, and the like described in the embodiments are examples and can be changed as appropriate.
[0015]
As shown in FIG. 1, a hot water heater 10 includes a main body 11 containing a combustor that is a noise source, and an outer plate 12 that covers the main body 11 with a gap therebetween. The soundproof material 1 is assembled inside the outer plate 13 so as to face the noise source. As shown in the sectional view of FIG. 4A, the soundproofing material 1 includes a mat-like sound absorbing material 2 made of glass wool and a glass cloth 3g as the first material and a noise source facing surface 2a of the sound absorbing material 2 and its surroundings. A flat surface that covers the end surface 2b without bonding, and covers the outer plate facing surface 2c of the sound absorbing material 2 with the first scattering prevention member 3 formed in a tray shape having a peripheral flange portion 3a and the aluminum foil as the second material. The 2nd scattering prevention member 4 formed in the shape is included. The peripheral flange portion 3a of the first scattering prevention member 3 and the peripheral edge portion 4a of the second scattering prevention member 4 are joined by heat fusion using a heat fusion film 5 interposed therebetween, and thus the first scattering prevention member. 3 and the second scattering prevention member 4 enclose the entire surface 2a, 2b, 2c of the sound absorbing material 2.
[0016]
The soundproofing material 1 has a spindle attached to the front outer plate 13 by directing the second scattering prevention member 4 side to the front outer plate 13 and bonding it with a double-sided adhesive tape, or as shown in FIG. It is assembled by hooking to 14.
[0017]
According to the soundproofing material 1 configured as described above, the following operations and effects can be obtained.
(1) Since the entire surface 2a, 2b, 2c of the sound absorbing material 2 is encapsulated by the first scattering preventing member 3 and the second scattering preventing member 4, the assembling work and the use of the glass wool of the sound absorbing material 2 are performed. No scattering occurs. For this reason, itching of an assembling worker is prevented, the working environment and workability are improved, and deterioration of the sound absorbing material 2 is prevented.
(2) Noise can be prevented by the sound absorbing action by the glass wool of the sound absorbing material 2 and the sound attenuating action by the aluminum foil of the second scattering prevention member 4.
[0018]
Next, the manufacturing method of this soundproof material 1 is demonstrated in order of a process.
First, as shown in FIG. 2 (a), a heat fusion film 5 having almost the same dimensions as that of the second scattering prevention member 4 is laid, and the sound absorbing material 2 is placed on the heat fusion film 5. . Further, a glass cloth 3g is placed on the heat-sealing film 5 and the sound absorbing material 2 to cover the noise source facing surface 2a and the peripheral end surface 2b of the sound absorbing material 2.
[0019]
Next, as shown in FIG. 2 (b), the peripheral portion of the glass cloth 3 g is pushed around the peripheral end surface 2 b of the sound absorbing material 2 by a frame 9 that is slightly larger than the peripheral dimensions of the sound absorbing material 2, thereby A tray-like first scattering prevention member 3 having the flange portion 3a is formed. Since the frame body 9 is heated by an electric heater as a built-in heating means, the glass cloth 3g is easy to be molded, and this heat melts the heat-bonding film 5 through the glass cloth 3g, and the first scattering. The soundproof material 1 is formed by joining the peripheral flange portion 3 a of the prevention member 3 and the peripheral portion 4 a of the second scattering prevention member 4.
[0020]
Subsequently, as shown in FIG. 2 (c), after removing the frame body 9, the outermost peripheral edge part of the peripheral flange part 3 a of the first scattering prevention member 3 and the peripheral edge part 4 a of the second scattering prevention member 4 is cut off. Then, the soundproofing material 1 is adjusted to a desired dimensional shape (trimming).
[0021]
In addition, as shown in FIG. 3, the heat sealing | fusion film 5 of the substantially same dimension as it is spread | laid on the aluminum foil of the dimension which can take the 2nd scattering prevention member 4, and several sound-absorbing material is provided on this heat sealing | fusion film 5. 2, and a plurality of first scattering prevention members 3 are covered with a plurality of frame bodies 9 by covering the heat sealing film 5 and the sound-absorbing material 2 with a glass cloth 3 g having a size capable of taking a plurality of first scattering prevention members 3. After forming the plurality of soundproofing materials 1 by joining the peripheral flange portion 3a of each first scattering prevention member 3 and the peripheral portion 4a of each second scattering prevention member 4, the soundproofing materials 1 are separated. Therefore, it can manufacture efficiently.
[0022]
According to the method for manufacturing the soundproofing material 1 configured as described above, the following operations and effects can be obtained.
(1) Since the formation of the first scattering prevention member 3 and the joining of the second scattering prevention member 4 can be performed almost simultaneously, the production efficiency is high and the production time can be shortened.
{Circle around (2)} By simultaneously producing a plurality of soundproofing materials 1 as described above, the production efficiency can be further increased and the production time can be remarkably shortened.
[0023]
In addition, this invention is not limited to the said embodiment, For example, it can also be suitably changed and embodied in the range which does not deviate from the meaning of invention as follows, for example.
(A) The first scattering prevention member 3 may be previously formed into the tray shape and then overlapped with the sound absorbing material 2 or the like and joined to the second scattering prevention member 4.
(B) The position of the fusion film 5 is not particularly limited, but the entire surface (FIG. 4A) between the second scattering prevention member 4 and the sound absorbing material 2 is conceivable. Further, as a reference example , the entire surface between the sound absorbing material 2 and the first scattering prevention member 3 (FIG. 4B), only the portion where the scattering prevention members 3 and 4 are in contact with each other (FIG. 4C), and the like. Conceivable.
[0024]
【Effect of the invention】
As described above in detail, according to the soundproofing material for a combustion device according to the present invention, it is possible to prevent scattering of fibers of the sound absorbing material, to improve the assembling work environment and workability, and to prevent deterioration of the sound absorbing material. Can be planned. Moreover, according to the method for manufacturing a soundproof material for a combustion apparatus according to the present invention, the manufacturing efficiency is high and the manufacturing time can be shortened.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a combustion device and its soundproofing material according to an embodiment of the present invention.
FIGS. 2A to 2C are perspective views showing the soundproofing material in the middle of manufacture.
FIG. 3 is a perspective view showing a method for simultaneously producing a plurality of soundproofing materials.
FIGS. 4A to 4C are cross-sectional views showing an example of arrangement of a fusion film in a soundproofing material.
FIG. 5 is a cross-sectional view showing a modified example of a method for assembling the soundproof material to the front plate.
6A to 6D are cross-sectional views showing the structure of a conventional soundproofing material.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Soundproof material 2 Sound absorption material 2a Noise source direction surface 2b Perimeter end surface 2c Outer plate direction surface 3 First scattering prevention member 3a Periphery flange part 3g Glass cloth 4 Second scattering prevention member 4a Perimeter part 5 Thermal fusion film 9 Frame 10 Hot water heater 11 Main body 12 Outer plate 13 Front outer plate

Claims (6)

In the soundproofing material (1) assembled inside the outer plate (12) so as to face the noise source of the combustion appliance,
Noise source of the sound absorbing material (2) only by a mat-like sound absorbing material (2) mainly made of glass wool and a glass cloth (3g) through which sound passes but glass wool of the sound absorbing material (2) does not substantially pass. A first scattering prevention member (3) formed in a tray shape that covers the facing surface (2a) and the peripheral end surface (2b) without adhering and has a peripheral flange portion (3a), and glass wool of the sound absorbing material (2) Including a second scattering prevention member (4) formed in a planar shape covering the outer plate facing surface (2c) of the sound absorbing material (2) only with an aluminum foil that does not substantially pass through,
The heat absorbing film is not interposed between the noise source facing surface (2a) and the peripheral end surface (2b) of the sound absorbing material (2) and the first scattering prevention member (3). Between the outer plate facing surface (2c) of (2) and the peripheral flange portion (3a) of the first scattering prevention member (3) and the second scattering prevention member (4), a heat fusion film (5) Is intervened,
The peripheral flange portion (3a) of the first anti-scattering member (3) and the peripheral portion (4a) of the second anti-scattering member (4) are joined by thermal fusion using the thermal fusion film (5). A soundproofing material for a combustion appliance, wherein the entire sound absorbing material (2) is encapsulated by the first scattering preventing member (3) and the second scattering preventing member (4). In the manufacturing method of the soundproof material (1) assembled inside the outer plate (12) so as to face the noise source of the combustion appliance,
The second scattering formed in a planar shape covering the outer plate facing surface (2c) of the sound absorbing material (2) only by the aluminum foil through which the glass wool of the mat-shaped sound absorbing material (2) mainly made of glass wool does not substantially pass. Lay the heat-sealing film (5) on the prevention member (4),
Place the sound absorbing material (2) on the heat fusion film (5),
Without passing a heat-sealing film on the sound absorbing material (2), sound passes through the second scattering prevention member (4) and the sound absorbing material (2), but the glass wool of the sound absorbing material (2). Covers only the glass cloth (3g) that does not pass through and covers the noise source facing surface (2a) and the peripheral end surface (2b) of the sound absorbing material (2) without adhering, and has a peripheral flange portion (3a). Molding the tray-shaped first anti-scattering member (3),
The peripheral flange portion (3a) of the first scattering prevention member (3) and the peripheral portion (4a) of the second scattering prevention member (4) are joined by thermal fusion using the thermal fusion film (5). A method for producing a soundproof material for a combustion appliance. The molding is performed by pushing the peripheral portion of the glass cloth (3g) around the peripheral end surface of the sound absorbing material (2) with a frame (9) that is slightly larger than the peripheral size of the sound absorbing material (2). A method for producing a soundproof material for a combustion appliance according to claim 2. The said frame (9) is a manufacturing method of the soundproof material of the combustion appliance of Claim 3 currently heated by the internal or external heating means . The frame in which the heat-sealing film (5) interposed between the peripheral flange portion of the first anti-scattering member (3) and the peripheral portion of the second anti-scattering member (4) is heated. 5. The method for producing a soundproof material for a combustion appliance according to claim 4, wherein the heat insulation is performed by melting with heat of (9) . A plurality of the sound-absorbing materials (2) are placed on the aluminum foil of a size that allows a plurality of the second scattering-preventing members (4), and the second scattering-preventing members (4) and the sound-absorbing materials (2) are A plurality of the first scattering prevention members (3) are formed by covering the glass cloth (3g) having a size that allows a plurality of first scattering prevention members (3) to be taken, and the peripheral flange portion of each first scattering prevention member (3) (3a) and the peripheral portion (4a) of each second scattering prevention member (4) are joined to form a plurality of soundproofing materials (1), and then each soundproofing material (1) is separated. The manufacturing method of the soundproof material of the combustion appliance as described in any one of Claims 2-5 .

Images