KR20180137726A - A Acoustic Panel and Vertical Blind used of It - Google Patents

Abstract

In the present invention, a first sheet and a second sheet are sequentially adhered and laminated on both sides of a honeycomb plate using an adhesive, Wherein the first sheet and the second sheet which are sequentially adhered to both surfaces of the honeycomb plate are fiberglass and a sound absorbing curtain paper preliminarily registered by the applicant with the registered patent No. 10-1492034 and the first sheet and the second sheet A sound absorbing panel characterized in that the adhesive for sequentially bonding the sheets is a flame-retardant adhesive;
The first sheet and the second sheet, which are successively adhered to both surfaces of the honeycomb plate by sequentially adhering and laminating the first sheet and the second sheet using an adhesive on both sides of the honeycomb plate, -1492034, wherein the adhesive for adhering the first sheet and the second sheet to both surfaces of the honeycomb plate in order is a flame-retardant adhesive;
A plurality of shielding plates are installed at regular intervals in a vertical blind bracket, angles and positions of the shielding plates installed at predetermined intervals are adjusted by an angle adjusting rope and a position adjusting rope, A sound absorbing plate frame is formed by integrally joining the outer surface of the sound absorbing plate to the outer frame of the sound absorbing plate cut by a narrow predetermined size (rectangular: rectangle), and forming a shaft rod at the center of the outer surface of the upper surface and the outer surface of the lower frame, A guide head rail is provided inside an upper bar forming a vertical blind jacket, and a plurality of light shielding sound absorbing panel casings are provided between a guide head rail provided inside the upper bar and a lower end bar forming a vertical blind jacket, And a light-shielding sound-absorbing plate frame provided with a mandrel at regular intervals is positioned and adjusted with the angle adjusting rods The sound insulation combine customized vertical blinds with the sound-absorbing panel, it characterized in that the adjustment to the position and angle by; provides.
The present invention is characterized in that a fiberglass and a sound absorbing curtain paper are laminated (adhered) to both sides of a honeycomb to form a resonance absorption structure, and in particular, a sound absorbing curtain paper preliminarily registered by both sides is adhered to both outer surfaces, It is possible to obtain a flame retarding effect while maximizing a noise reduction effect (sound absorption effect) as well as a short high-frequency area as well as a middle- and low-frequency region with a long wavelength. When a fiberglass and a sound absorbing curtain paper are laminated (adhered) to both sides of the honeycomb, It is possible to obtain flame retardance and noise reduction (sound absorption) effects at the same time.
In the present invention, a sound-absorbing panel formed by laminating (adhering) a fiberglass and sound-absorbing curtain paper to both sides of a honeycomb is cut to a predetermined size (length x width) according to the size of a window It is possible to manufacture (attach) a vertical blind with a sound absorbing panel frame by using it as a blind of a blind (blind paper), and to install (adhere) the outdoor blind to the outside, And at the same time, the noise of the outdoor is introduced into the room or the sound of the room is prevented from flowing out to the outside, so that the shading and the noise (soundproofing) effect can be obtained at the same time.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sound-absorbing panel and a sound-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound-absorbing panel which absorbs noise and annihilates it (soundproofing), and a customized vertical blind for soundproofing manufactured using the same.

The first sheet and the second sheet, which are successively adhered to both surfaces of the honeycomb plate, are adhered to each other by a bonding agent such as a fiberglass and a heat- A sound absorbing panel comprising a sound absorbing curtain paper registered in advance by the applicant with a registered trademark 10-1492034 and the adhesive for adhering the first sheet and the second sheet to both surfaces of the honeycomb plate in order is a flame retardant adhesive;

A plurality of shielding plates are installed at regular intervals in a vertical blind bracket, angles and positions of the shielding plates installed at predetermined intervals are adjusted by an angle adjusting rod and a position adjusting rod, A sound absorbing plate frame is formed by integrally joining the outer surface of the sound absorbing plate to the outer frame of the sound absorbing plate cut by a narrow predetermined size (rectangular: rectangle), and forming a shaft rod at the center of the outer surface of the upper surface and the outer surface, A guide head rail is provided inside an upper bar forming a vertical blind jacket, and a plurality of light shielding sound absorbing panel casings are provided between a guide head rail provided inside the upper bar and a lower end bar forming a vertical blind jacket, And a light-shielding sound-absorbing plate frame provided with a mandrel at regular intervals is positioned and adjusted with the angle adjusting rods The present invention relates to customized vertical blind soundproofing combine with the sound-absorbing panel, characterized in that the adjustment to the position and angle by.

As soundproof panels or vertical blinds similar to the present invention, there are a domestic registered utility model 20-0294311 (a transparent soundproof panel using a foamed metal), a patent 10-2013-0136179 (a soundproof panel), a registered utility model 20 Japanese Patent Application Laid-Open No. 10-1219077 (Flame Retardant Building Panel), and Published Patent Application No. 10-2011-0040320 (Vertical blind with excellent sound absorption function), and Japanese Patent No. 10-1495870 (security window) are known.

As a soundproof panel, there are known a registraion utility model No. 20-0294311 (a transparent soundproof panel using a foamed metal) and a patent No. 10-2013-0136179 (a soundproof panel).

Registration Utility Model No. 20-0294311 (a transparent soundproof panel using a foamed metal) is formed by bonding a foamed aluminum layer and a steel sheet layer to both sides of a honeycomb with a normal adhesive agent, so that the soundproof effect is not good, There is a problem that the honeycomb made of the paper material is easily fired by the foaming aluminum layer and the steel sheet layer which are strong in heat transfer and are very vulnerable to the topic.

Japanese Patent Application Laid-Open No. 10-2013-0136179 (soundproof panel) has a structure in which a surface layer (polymethylmethacrylate) is adhered to both surfaces of a polycarbonate base layer in which hexagonal holes are drilled so as to prevent breakage by external impact, Yellowing or deterioration does not occur even when exposed to acid rain for a long period of time. However, since the polycarbonate substrate layer having numerous hexagonal holes is extruded, the size of the product is limited, the cost is high, There is a weak problem.

As a typical construction panel, there have been proposed a registration panel for use in a registrated utility model No. 20-0298958 (flame retardant panel), a patent No. 10-2016-0037276 (a functional wood panel and a manufacturing method thereof), a registered patent No. 10-1219077 (a flame- Are known.

Regarding Utility Model No. 20-0298958 (flame retardant panel), a first sheet (paper impregnated with a water-soluble inorganic flame retardant) and a second sheet (a fiber impregnated and dried with a water-soluble inorganic flame retardant) are laminated on both sides of a honeycomb member (honeycomb) (Laminated) by a usual adhesive in order to obtain a somewhat sound-absorbing effect and a flame-retarding effect.

However, since the paper and the fiber which are very vulnerable to moisture are adhered (laminated) on both sides of the honeycomb member (honeycomb), if the area of the panel is wide, the swelling phenomenon occurs and it can not be easily handled. (Lamination) of only paper and fibers which are very susceptible to moisture on both sides of the mold member (honeycomb), moisture can easily penetrate and even paper and fiber are peeled off.

Particularly, when the paper and the fiber are adhered (laminated) on both sides of the honeycomb member (honeycomb) by simply bonding using a common adhesive, the adhesive of general chemical composition is vulnerable to fire, This exposes fatal vulnerabilities that can easily occur due to fire extinguishment at the honeycomb of the central part.

Japanese Patent Application Laid-Open No. 10-2016-0037276 (Functional Wood Panel and Method of Making the Same) is a product obtained by adhering an ABS plate material and a veneer material to both surfaces of a core material (honeycomb) with an adhesive agent, The laminated ABS plate and the veneer plate and the adhesive for bonding them are vulnerable to fire, so that a fire-retardant effect can not be expected at all.

Japanese Patent Application No. 10-1219077 discloses a flame retardant construction panel in which a front plate (nonferrous metal or aluminum) and a back plate (nonferrous metal or aluminum) are bonded to both sides of a core plate (honeycomb) It was made by filling resin foam foam. However, since the front plate (non-ferrous metal or aluminum) and the back plate (non-ferrous metal or aluminum) bonded to both sides of the core plate (honeycomb) have high heat conductivity and the adhesive bonding them is also vulnerable to fire, There is a problem that the fire gets easily attached.

Further, as a vertical blind, Japanese Patent Laid-Open Publication No. 10-2011-0040320 (a vertical blind with added sound absorption function) and No. 10-1495870 (security window) are known.

Open No. 10-2011-0040320 (a vertical blind with excellent sound absorption function) is characterized in that a plurality of light-shielding films are mounted on a head rail provided with an angle adjustment line and a position adjustment line, The light shielding film is configured to adjust the angle of the light shielding film or to collect and expand the light shielding film to one side, and there is a problem that soundproofing and flame retardancy can not be expected at all.

No. 10-1495870 (security window), the interior and exterior blocking plates for the privacy plate are installed inside the rectangular window frame for installing the intrusion prevention rods, thereby protecting the privacy of the room by artificially manipulating the angle of the indoor and outdoor blocking plates .

However, this is merely a provision of an indoor / outdoor shielding plate for a privacy shield in place of the intrusion prevention shield, and no effect of soundproofing and fire prevention can be expected at all.

The present invention is to provide a sound-absorbing panel that absorbs noise and annihilates it (soundproofing), and a customized vertical blind for soundproofing manufactured using the same.

In the present invention, a first sheet and a second sheet are sequentially adhered and laminated on both sides of a honeycomb plate using an adhesive, Wherein the first sheet and the second sheet which are sequentially adhered to both surfaces of the honeycomb plate are fiberglass and a sound absorbing curtain paper preliminarily registered by the applicant with the registered patent No. 10-1492034 and the first sheet and the second sheet A sound absorbing panel characterized in that the adhesive for sequentially bonding the sheets is a flame-retardant adhesive;

A plurality of shielding plates are installed at regular intervals in a vertical blind bracket, angles and positions of the shielding plates installed at predetermined intervals are adjusted by an angle adjusting rod and a position adjusting rod, A sound absorbing plate frame is formed by integrally joining the outer surface of the sound absorbing plate to the outer frame of the sound absorbing plate cut by a narrow predetermined size (rectangular: rectangle), and forming a shaft rod at the center of the outer surface of the upper surface and the outer surface, A guide head rail is provided inside an upper bar forming a vertical blind jacket, and a plurality of light shielding sound absorbing panel casings are provided between a guide head rail provided inside the upper bar and a lower end bar forming a vertical blind jacket, And a light-shielding sound-absorbing plate frame provided with a mandrel at regular intervals is positioned and adjusted with the angle adjusting rods The sound insulation combine customized vertical blind, it characterized in that the adjustment to the position and angle by; provide haryeoneunde it is an object.

Another object of the present invention is to provide a method of forming a resonance absorption structure by laminating (bonding) a fiberglass and a sound-absorbing curtain paper on both sides of a honeycomb, and adhering a sound-absorbing curtain paper pre- , It is possible to obtain a flame retarding effect while maximizing a noise reduction (sound absorption) effect by absorbing sound to mid and low frequency regions having a long wavelength as well as a high frequency region having a short wavelength, and to laminate (adhere) fiberglass and sound absorbing curtain paper to both sides of the honeycomb (Sound absorbing) effect by lamination using a flame-retardant adhesive at the same time, and a customized vertical blind for soundproofing using the same.

Another object of the present invention is to provide a sound-absorbing panel formed by laminating (bonding) fiberglass and sound-absorbing curtain paper on both sides of a honeycomb and cutting the sound-absorbing panel to a predetermined size (length x width) according to the size of a window The vertical blind provided with the sound absorbing plate frame can be customized and installed (attached) by using the frame as a blind (blind paper) of the vertical blind, and it is possible to install (attach) the outdoor light, (Soundproofing) effect by blocking outdoor noise from flowing out into the room or blocking outdoor sound from flowing out to the outside, and to provide a customized vertical blind for soundproofing using the same .

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects,

Wherein a first sheet and a second sheet are successively adhered to each other on both sides of a honeycomb plate using an adhesive to form a laminate;

A first sheet and a second sheet sequentially adhered to both surfaces of the honeycomb plate are fiberglass and a sound absorbing curtain sheet preliminarily registered with the registered patent No. 10-1492034 by the applicant;

Wherein the adhesive that sequentially adheres the first sheet and the second sheet to the both surfaces is a flame-retardant adhesive.

Other and further objects,

Wherein a plurality of shielding plates are installed at regular intervals in a vertical blind outer shell and angle plates and a position adjusting rod are adjusted by angle adjusting rods and position adjusting rods,

The sound-absorbing panel is integrally joined to the outer edge of the sound-absorbing plate formed by cutting the sound-absorbing panel into a predetermined size (rectangle: rectangle) having a long length and narrow width. The upper and lower surfaces of the sound- A negative plate formed by forming a shaft rod;

A guide head rail is installed inside the upper bar forming the vertical blind jacket;

A plurality of sound absorbing panel casings provided at regular intervals between a guide head rail provided inside the upper bar and a lower end bar forming a vertical blind outer shell;

And the sound-absorbing panel for a light shield provided with the mandrel at regular intervals is adjusted in angle and position by the angle adjusting rods and the position adjusting rods.

In the present invention, a first sheet and a second sheet are sequentially adhered and laminated on both sides of a honeycomb plate using an adhesive, Wherein the first sheet and the second sheet which are sequentially adhered to both surfaces of the honeycomb plate are fiberglass and a sound absorbing curtain paper preliminarily registered by the applicant with the registered patent No. 10-1492034 and the first sheet and the second sheet A sound absorbing panel characterized in that the adhesive for sequentially bonding the sheets is a flame-retardant adhesive;

Wherein a plurality of shielding plates are installed at regular intervals in a vertical blind outer shell and angle plates and a position adjusting rod are adjusted by angle adjusting rods and position adjusting rods, The sound-absorbing panel is integrally joined to the outer edge of the sound-absorbing plate formed by cutting the sound-absorbing panel into a predetermined size (rectangle: rectangle) having a long length and narrow width. The upper and lower surfaces of the sound- A guide head rail is provided inside the upper bar forming the vertical blind jacket, and a guide head rail provided inside the upper bar and a lower end bar forming a vertical blind jacket And a plurality of light-shielding sound-absorbing panel casings sandwiching the plurality of light-shielding sound-absorbing panel casings are installed at predetermined intervals, and the angle and position of the light- Vertical blinds.

The sound-absorbing panel and the sound blind vertical blind using the same according to the present invention are formed by laminating (bonding) a fiberglass and sound-absorbing curtain paper on both sides of a honeycomb to form a resonance absorption structure, By adhering the registered sound-absorbing curtain paper, it is possible to obtain a flame-retarding effect while maximizing a noise reduction (sound absorption) effect by absorbing not only high-frequency regions having a short wavelength but also middle- and low-frequency regions having a long wavelength, When laminating (adhering) sound-absorbing curtain paper with a flame-retardant adhesive, flame retardation and noise reduction (sound absorption) effects can be obtained at the same time.

In the present invention, a sound-absorbing panel formed by laminating (adhering) a fiberglass and sound-absorbing curtain paper to both sides of a honeycomb is cut to a predetermined size (length x width) according to the size of a window It is possible to manufacture (attach) a vertical blind with a sound absorbing panel frame by using it as a blind of a blind (blind paper), and to install (adhere) the outdoor blind to the outside, A vertical blind can be provided for soundproofing by using a sound-absorbing plate which can simultaneously obtain a light-shielding effect and a noise-proofing effect by blocking outdoor noise from flowing into the room or from discharging sound from the room to the outside.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a sound-absorbing panel according to the present invention. FIG.
Fig. 2 is a longitudinal sectional view showing a sound absorbing panel according to the present invention shown in Fig. 1; Fig.
3A and 3B are vertical cross-sectional views illustrating sound absorbing curtain sheets of different embodiments in a sound absorbing panel according to the present invention illustrated in FIG.
4 is a perspective view illustrating an example of a sound absorbing panel frame manufactured using the sound absorbing panel according to the embodiment illustrated in FIG.
5 is a perspective view illustrating an example of a customized vertical blind for soundproofing manufactured using the sound absorbing panel according to the present invention illustrated in FIG.

These and other objects and features of the present invention will be more clearly understood from the following detailed description based on the accompanying drawings.

1 to 5 illustrate concrete implementations of a sound-absorbing panel 1 according to the present invention, a sound-absorbing panel frame 10 using the same, and a customized vertical blind 100 for soundproofing using the sound-and-sound frame 10 .

1 and 2 are exploded perspective views and a longitudinal sectional view showing a sound absorbing panel 1 according to the present invention, and FIGS. 3a and 3b are views showing a sound absorbing panel 1 according to the present invention illustrated in FIG. 1 (6: 6-1, 6-2) of different embodiments in the second embodiment of the present invention.

FIG. 4 is a perspective view illustrating a sound-absorbing panel frame 10 according to the present invention, which is manufactured using the sound-absorbing panel 1 according to the invention illustrated in FIG. 1, FIG. 5 is a perspective view of a sound- 10 is a perspective view illustrating an example of a soundproof and customized vertical blind 100 manufactured by using the soundproofing blind 100 of the present invention.

First, the structure of the sound-absorbing panel 1 according to the present invention illustrated in Figs. 1 and 2 will be described.

1 and 2, the sound-absorbing panel 1 according to the present invention has flame-retardant adhesives 3: 3-1 and 3-2 (5: 5-1 and 5: 5) on both sides of the honeycomb plate 2, (4: 4-1, 4-2) as a first sheet and a second sheet and a sound absorbing curtain paper (6: 4-1, 4-2), which was preliminarily developed by the applicant himself and registered as a registered patent No. 10-1492034, 6-1 and 6-2 were sequentially bonded to form a single body.

Since the honeycomb plate 2 is a commonly used item in the field of the present invention, a detailed description thereof will be omitted.

The fiberglass 4 (4-1, 4-2) adhered to both surfaces of the honeycomb plate 2 by using the flame-retardant adhesive 3 (3-1-3, 3-2) is formed on both surfaces of the honeycomb plate 2 by vapor deposition 6-1 and 6-2, which are deposited on the outer surface of the honeycomb plate 2, are firmly supported so as not to be twisted or deformed, and a noise function and a fireproof effect are also obtained .

4-1 and 4-2 using the flame-retardant adhesive (5: 5-1 and 5-2), and was pre-registered with the registered patent No. 10-1492034 The sound absorbing curtain papers (6: 6-1, 6-2) were formed as follows.

3A, a sound absorbing agent coating layer 60 is integrally deposited on one side or both sides of the fabric 61, and a part of the sound absorbing agent 60-1 may penetrate into the fabric 61 and be impregnated.

 3B, the fabric 61 deposited on one surface of the sound-absorbing agent coating layer 60 may be formed on both surfaces of the foaming agent 62 by using the flame-retardant adhesive 3, as shown in FIG. 3B.

It is most preferable to keep the thickness of the sound absorbing curtain papers 6 (6-1, 6-2) at 2 to 8 mm. When the sound absorbing agent coating layer 60 penetrates into the inside of the fabric 61, (Thickness) of 0. < RTI ID = 0.0 > 7 < / RTI > mm, preferably 0.2 to 0.5 mm.

The characteristics of the sound absorbing curtain papers 6 (6-1 and 6-2) formed by vapor-depositing (adhering) the sound absorbing agent coating layer 60 on one side or both sides of the fabric 61 as described above are disclosed in Registration No. 10-1492034 Can be more clearly understood by the following embodiments and experimental results illustrated in the publication.

(Example)

A sound absorbing agent, which is a composition of a noise-absorbing powder paint, known in domestic patent No. 10-0963656 (registered and developed by the applicant), is applied on the surface (one side) of the fabric and heated by hot air maintained at 75 캜 The drying process was repeated twice to deposit the sound-absorbing agent into the inside of the fabric and to maintain the thickness of 0.3 mm on the outer surface of the sound-absorbing curtain ply (1: sound-absorbing agent fabric) 6: 6-1, 6-2) That is, a soundproof curtain (a noise curtain) used as a test sample was obtained.

(Experiment result)

Sound absorption curtain papers (aka noise curtains): sound-absorbing curtain papers (6: 6-1, 6-2.)) Obtained by the above-described embodiment are submitted to the Korea Research Institute of Shipping. The test method was KS F 2805: 2004, ASTM C 423: 2009a.

The test environment was maintained at a temperature of 13.8 ± 1.0 ° C and a humidity of 39 ± 5% RH.

The test standard was ASTM C 423: 2009a (Standard Test Method for Sound Absorption and Sound Absorption Coefficient by Reverberation Room Method) and KS F 2805: 2004 Reverberation Method Sound Absorption Rate Measurement Method (see Table 1 and Fig. 8).

The test conditions are: sound source: 1/3 octave band white noise, measurement frequency: 100 HZ to 5000 HZ (1/3 octave band center frequency)

Measurement points: 6 microphone positions and 2 sound source positions were repeatedly measured three times for each frequency at 12 points.

Laboratory and Sample: A sample (sound absorbent fabric 30) having an area of 12.0 m 2 was installed in a test room having a volume of 220.0 m 3 and a surface area of 214.3 m 2.

The test procedure,

end. Microphones and sound sources were installed according to the test method of KS F 2805: 2004, ASTM C 423: 2009a,

I. We used the Interrupted Noise Method to measure the reverberation time in the binje bay.

All. Reverberation time was measured after the sample was installed on the mounting table.

la. Using the measured two reverberation times, the scratch rate was calculated according to the following formula.

    (Expression)? S = {55.5V (1 / c2T2-1 / c1T1) -4V (m2-m1)} 1 / S

           From here,

          (m / s) when the temperature is t1, t2, and v is the volume of the empty reverberation chamber (m2), S is the area covered by the test piece (m2) (s), c = 331 + 0.6t, t: atmospheric temperature (℃), T1: reverberation time in empty reverberation room (s), T2: reverberation time (M) calculated in accordance with ISO 9613-1 using the climatic conditions in the empty reverberatory room and the sample room, and is calculated from the damping coefficient α and calculated according to the equation [m = α / 10log (e)].

hemp. The Noise Reduction Coefficient was calculated by arithmetically averaging the sound absorption rates at 250HZ, 500HZ, 1000HZ and 2000HZ according to ASTM C 423: 2009a.

(Table 1) Reverberation time measurement result

T1: Reverberation time of empty room, T2: Reverberation time of room after sample installation

As shown in Table 1, it can be confirmed that the reverberation time T2 of the room (room) after the sample installation is significantly lower than the reverberation time T1 of the empty room.

(Table 2) Test results of sound-insulating curtains (aka noise curtains: sound-absorbing curtain papers (6: 6-1, 6-2.))

Table 2

NRC: 0.35

As a result of the test, NRC was 0.35, and the noise absorption rate was high. Especially, as the frequency was higher, the noise absorption coefficient (? S) was higher.

(4: 4-1, 4-2) as a first sheet and a second sheet on both sides of the honeycomb plate 2, and a sound absorbing curtain sheet (3: 3-1, 3-2) for adhering the flame retardant adhesives 6: 6-1 and 6-2 in order are known flame retardant adhesives (flame retardant adhesives), and a detailed description thereof will be omitted.

The fiberglass 4 (4-1, 4-2) and the sound absorbing curtain papers 6 (6-1, 6-2) are deposited on both sides of the honeycomb plate 2 in the sound-absorbing panel 1 according to the present invention (3: 3-1, 3-2) is used when the flame-retardant adhesive (3: 3-1, 3-2) is used for the purpose of adhesion, it is possible to double the nonflammable function and to obtain the heat insulating property and to reduce the density of smoke .

In addition, the sound absorption function can be improved according to the thickness of the applied flame-retardant adhesive (3: 3-1, 3-2), and when the flour-like adhesive (3: 3-1, 3-2) Chengdu can also get together.

Particularly, a sound-insulating panel 1 according to the present invention, a sound-absorbing panel 10 using the sound-absorbing panel 10, and a sound-blocking vertical blind 100 using the sound-absorbing frame 10 are characterized in that a honeycomb plate 2, (4: 4-1, 4-2) and sound-absorbing curtain papers (6: 6-1, 6-2) are sequentially laminated on both sides of the light guide plate (Resonance absorption structure).

For example, when a sound is incident on a resonator having a hole in the cavity, the air in the hole is strongly vibrated near the resonance frequency (f ₀ ) to generate sound energy as frictional heat.

In other words, as shown in the following figure (1), the air in the cavity, which is smaller in size than the wavelength, acts like a spring, and mechanically moves like a vibration system on a sprung mass. This is called Helmholz resonance And the resonance frequency can be calculated as follows.

          C: sound velocity (m / c)

              G: Conductivity of the hole portion (= S / le)

S: Cross-sectional area of open hole (m ² )

              le: Effective length (m) (= 1 + δ) of the perforated neck part

              δ: Pitch of valve (≒ 0.8d)

              d: Diameter of neck (m)

V: volume of cavity (m ² )

In addition, when the thickness of the eclipse panel 1 is made to be 15 to 25 mm, the sound pressure of the plane wave incident on the eclipse panel 1 becomes maximum at the eclipse position where the particle velocity is 1/4 wavelength, The noise reduction effect can be greatly expected.

If the sound pressure of the incident wave is P _i = P _m sin (ωt-k _x ) and the sound pressure of the reflected wave is Pr = P _m sin (ωt + k _x ) The velocity is U _i = P _m / ρ c sin (ω t + k _x ) and the velocity of the reflected wave is U _r = P _m / ρ c sin (ωt-k _x ).

Therefore, the composite wave is U = U _{i +} U _{r =} 2P _m / _r c · cos ωt · sin (ωt-k _x ).

The particle speed n when the _x k = nπ particle velocity becomes minimum when the, x = λ / 4 (2n -1) is an integer that is the maximum. That is to say, the number of particles (? / 4,? / 4, -? -) in the? / 4 numerical position (? / 4, 3? / 4, -----) of? / 4 from the surface (sound absorbing curtain paper Since the speed is maximum, when the sound absorption occurs at this position, the most effective noise reduction state is obtained.

Generally, the wavelength of sound (λ) is the value obtained by dividing sound velocity (C) by frequency (f).

That is,? = C / f (m)

            lambda: wavelength (m)

            C: Sound speed (m / s) (15 占 폚: C = 340 m / s, 20 占 폚: C = 344 m /

            f: Frequency (Hz)

For example, if f = 1000 Hz,

                          ? = C / f (m)

                             = 340/1000

                             = 0.34 (m)

                             = 34 cm.

Since λ / 4 is 34/4 = 8.5 cm, it is attenuated at the thickness of 15 to 25 mm of the sound-absorbing panel 1. Since λ = 68 cm at f = 500 Hz, λ / 4 = 17 cm. At f = 1000 Hz,? = 136 cm, so? / 4 = 34 cm, so that about 60% can be attenuated.

Particularly, the sound-absorbing panel 1 according to the present invention is characterized in that the fiberglass 4 (4-1, 4-2) and the sound-absorbing curtain papers 6 (6-1, 6-2) ) To form a double-layered structure, thereby doubling the sound absorption rate and significantly reducing the noise.

A sound-absorbing panel frame 10 as shown in FIG. 4 is formed by using the sound-absorbing panel 1 according to the present invention.

The sound absorbing panel 1 according to the present invention is cut into a rectangular shape having a long length and a narrow width and preferably has a width of 5 to 30 cm and a width of 5 to 30 cm to conform to the size of the customized vertical blind 100, Preferably 15 to 25 cm, and cut by a predetermined length.

The sound absorbing panel outer frame 11 is integrally joined to cover the edge of the sound absorbing panel 1 cut as described above and the upper and lower frames 11-1 and 11-2 forming the sound absorbing plate outer frame 11 And the shaft rods 12 are integrally formed at the center of the outer surface so that the vertical blinds 100 can be assembled easily.

In particular, the sound-absorbing panel frame 10 maintains the width W1 at 5 to 30 cm, preferably 15 to 25 cm, and the thickness d1 at 15 to 25 mm, preferably 18 to 22 mm.

Using the sound-absorbing panel frame 10 manufactured as described above, a customized vertical blind 100 for soundproofing as shown in Fig. 5 was manufactured.

The soundproof and customized vertical blind 100 is cut and installed in a predetermined size according to the size of the window 250 installed on the wall 200, that is, the window frame 260.

The vertical blindfold frame 110 is cut and assembled according to the size of the window frame 260 on which the inner and outer windows 261 and 262 are installed.

A conventional guide head rail 120 may be installed in the upper bar 110-1 of the vertical blind bracket 110 or the guide bar 120 may be formed in the upper bar 110-1 It is acceptable.

One end of the guide head rail 120 installed inside the upper bar 110-1 is exposed to the upper end of one side bar and the other end of the guide head rail 120 is exposed through the end of the guide head rail 120 exposed to the upper end of one side bar The conventional angle adjusting member 140 and the position adjusting rods 150 are exposed and exposed to the outside and the outside of the end portion of the guide head rail 120 exposed to the upper end of one side bar is covered with the adjusting bar cap 130, .

Particularly, it is preferable that the thickness d2 of the vertical blind bracket 110 is maintained at 5 to 30 mm in accordance with the width W1 of the sound-absorbing panel frame 10 to be installed.

A sound absorbing panel frame 10 is installed at a predetermined interval between the upper bar 110-1 and the lower bar 110-2 forming the vertical blind box 110 and mounted inside the upper bar 110-1 (Not specifically shown) of the guide head rail 120 and the operating rail 110-3 so that the angle at which the sound-absorbing panel 10 is opened and closed by the operation of the angle adjusting jig 140 is And the sound-absorbing plate frame 10 can be gathered or deployed to one side by the operation of the position adjusting rod 150. [

As described above, by adjusting the angle at which the sound-absorbing plate frame 10 is opened and closed by the operation of the angle adjusting jig 140 and by assembling the sound-absorbing plate frame 10 to one side by the operation of the position adjusting rod 150, Since the technical structure and operation relationship are known in the art, a detailed description thereof will be omitted.

The angle adjusting rods 140 are manipulated so that the vertical blinds 100 are installed in the window frame 260 in the room (fixedly installed) The angle of the frame 10 may be adjusted to an open type or the sound-absorbing plate frame 10 may be gathered to one side by the position adjusting member 150 so that external light or outside light may be introduced into the room.

If the angle of each sound-absorbing plate frame 10 is adjusted to be closed by the angle adjusting rods 140 while the sound-absorbing plate frame 10 is developed by operating the position adjusting member 150 in reverse, The noise can be absorbed and removed by the sound-absorbing panel 1 of each sound-absorbing panel frame 10, so that the sound of the room can be prevented from being leaked to the outside or the privacy can be prevented from being exposed to the outside.

As described above, the sound-absorbing panel 1 according to the present invention, the sound-absorbing panel frame 10 using the same, and the customized vertical blind 100 using the sound-absorbing frame 10 can effectively attenuate the conversation area to a low frequency range. The installation interval of the sound-absorbing panel frame 10 using the sound-absorbing panel 1 can be adjusted in accordance with the acoustic logic as described above to an effective width of 5 to 30 cm according to the width W2 of the vertical blind frame 110, It would be desirable to adjust the interval.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. something to do.

1: Sound-absorbing panel 2: Honeycomb plate
3. 5: Flame retardant adhesive 4: Fiberglass
6: sound-absorbing curtain paper 10: sound-absorbing panel
11: sound absorption plate outer frame 12: shaft
60: sound-absorbing coating layer 61: fabric
62: Blowing agent 100: Soundproofing combined custom vertical blind
110: Vertical blind box frame 120: Guide head rail
130: adjusting line cap 140: angle adjusting line
150: Positioning line 200: Wall
250: window 260: window frame
261: inner window 262: outer window

Claims (8)

Wherein a first sheet and a second sheet are successively adhered to each other on both sides of a honeycomb plate using an adhesive to form a laminate;
A first sheet and a second sheet sequentially adhered to both surfaces of the honeycomb plate are fiberglass and a sound absorbing curtain sheet preliminarily registered with the registered patent No. 10-1492034 by the applicant;
Wherein the adhesive for adhering the first sheet and the second sheet to the both surfaces of the honeycomb plate in order is a flame-retardant adhesive. The absorbent article of claim 1, wherein the absorbent curtain is laid down;
And a thickness of 2 to 8 mm. The sound absorbing panel according to claim 1, further comprising:
And a thickness of 15 to 25 mm. The method of claim 1, wherein the flame-retardant adhesive comprises:
And adding stonewall so as to have dehumidification property. Wherein a plurality of shielding plates are installed at regular intervals in a vertical blind outer shell and angle plates and a position adjusting rod are adjusted by angle adjusting rods and position adjusting rods,
A sound absorbing panel according to any one of claims 1 to 3, wherein the sound absorbing panel is integrally joined to an outer edge of a sound absorbing plate formed by cutting a long length and a narrow rectangular shape (rectangle), and a top frame A sound absorbing plate frame having a shaft rod formed at the center of the outer surface of the lower frame;
A guide head rail is installed inside the upper bar forming the vertical blind jacket;
A plurality of light-shielding sound-absorbing panel casings provided at predetermined intervals between a guide head rail provided inside the upper bar and a lower end bar forming a vertical blind shell;
Wherein the light-shielding sound-absorbing panel frame provided with the mandrel at regular intervals is adjusted in angle and position by the angle adjusting rods and the position adjusting rods;
And an adjusting bar cap is provided on one upper side of the light-absorbing panel for the light shielding panel in which the angle adjusting rods and the position adjusting rods are exposed. The sound absorbing panel according to claim 5,
And a shaft rod is formed at the center of the upper surface and the center of the lower surface of the sound absorption plate, respectively. The sound absorbing panel according to claim 5,
And a width of 5 to 30 cm. The vertical blind is made of a sound-absorbing panel. 6. The vertical blind jacket of claim 5, wherein:
And a guide head rail which is formed inside the guide rails.

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