KR100717683B1 - A noise reduction type damper - Google Patents

Abstract

According to the present invention, a plurality of damper blades are installed in the damper housing formed in a rectangular shape (square) at regular intervals so as to be opened and closed collectively. The damper housing is a porous sound absorbing material (insulating material) inside the housing. And a metal fiber porous sound absorbing plate in order to form a noise damping housing, and the damper blade is a noise damping damper according to the present invention formed by connecting a metal porous sound absorbing plate to the outer surface of the porous sound absorbing material to form a noise damping blade. ,

When air (air) passes into the damper housing, the noise is absorbed and reduced by the porous sound absorbing material and the metal fiber porous sound absorbing plate installed in the damper housing and the damper blade, so that the damping effect of the noise can be improved and installed on the inner surface of the damper housing. The sound absorbing plate and the blades installed inside are formed by the aluminum fiber porous plate combined with the X-band type metal plate on both sides of the aluminum fiber to absorb and extinguish the noise generated when the air passes through. Can be improved.

Noise reduction air conditioner. Noise reduction damper unit. Noise reduction damper housing. Metal fiber porous sound absorbing plate. Noise reduction damper blade. Aluminum fiber porous sound absorption plate. Metal plate.

Description

Noise Reduction Type Damper

1a to 1f is a front view and a side cross-sectional view showing the operation of the noise reduction damper according to the present invention and an operation relationship explanatory diagram and main portion enlarged cross-sectional view.

2a to 2c is a cross-sectional view and a detailed plan view and a cross-sectional view of the aluminum fiber porous sound absorbing plate installed in the noise reduction damper according to the present invention.

3 is an exemplary view showing a state in which the noise reduction damper according to the present invention is installed in a noise reduction air conditioner.

Explanation of symbols on the main parts of the drawings

1: Noise reduction air conditioner 2: Air conditioner chamber

3: Noise reduction damper unit 4: Noise reduction suction unit

5: blower 6: heat exchanger

7: emission noise reduction chamber 10: noise reduction damper housing

11: Metal fiber porous sound absorbing plate 12.16: Porous sound absorbing material

13: Damper housing 15: Noise reduction damper blade

20: aluminum fiber porous sound absorption plate 21: metal plate

The present invention relates to a damper installed at the suction side, the discharge side, or a branch in a duct of an air conditioner in order to appropriately control the amount of air passing through an air conditioning facility installed to cool or heat an indoor room or to purify indoor air. In addition, the present invention relates to a noise reduction damper capable of significantly attenuating air noise.

In more detail, the damper housing is installed in the damper housing formed in a rectangular shape (square), and the damper housing can be opened and closed collectively by installing shafts at regular intervals, and the damper housing has a porous sound absorbing material inside the housing. (Insulating material) and metal fiber porous sound absorbing plate are installed in order to form a damper damper housing, and the damper blade is formed as a noise reduction damper blade by connecting a metal porous sound absorbing plate to the outer surface of the porous sound absorbing material to form an air (air) air inside the damper housing. It is to provide a noise damping damper that is reduced as the sound is absorbed by the porous sound absorbing material and the metal fiber porous sound absorbing plate installed in the damper housing and the damper blade when the) passes.

In general, ducts (air blowers) are installed in buildings (usually medium and large buildings) to harmonize (cool, heat, and purify) indoor air. It is to install a damper (Damper) as an adjustment means.

Noise generated from an air handling unit (An Air Handling Unit) or industrial blower (Fan, Blower), etc. is moved along the duct (duct) connected to the discharge port and the inlet port, and transferred to the room. To prevent or attenuate the air conditioner (chamber) for preventing noise is installed.

As conventional dampers, domestic utility model registrations 20-51261, utility model registrations 20-316156, utility model registrations 20-423334, patent registrations 10-603193, and the like are known.

Utility Model Registration No. 20-51261 (Air Damper), Utility Model Registration No. 20-316156 (Damper Device) and Utility Model Registration No. 20-423334 (Damper Device) are provided for the rectangular frame (damper body). A plurality of rotation control plates (blades, opening and closing plates) are installed inside the shafts, and each axis is operated to open and close the rotation control plates (blades, opening and closing plates) while collectively operating (rotating in reverse).

In addition, Patent Registration No. 10-603193 (damper), a plurality of damper blades are installed on the inner side of the damper frame formed in a quadrangle to allow the actuator (operating device) to open and close collectively, the damper wing It is formed in a streamlined shape that the interior is a space portion, it is to form a connection piece on both ends to improve the sealing force.

However, since the frame (damper body) is formed of a simple iron plate, and the rotation control plate (blade, opening and closing plate, damper wing) is formed in a plate shape using a steel plate or synthetic resin, when the air passes through the damper (damper device) The noise generated is simply passed through the inner surface of the frame (damper body) and both sides of the rotation control plate (blade, opening and closing plate, damper wings).

Therefore, there is a problem that can not be expected to block or attenuate the noise as well as can not block or attenuate the source.

In particular, the inner surface of the frame (damper body) and both sides of the rotation control plate (blade, opening and closing plate, damper wings) is not equipped with a device that can remove or attenuate the noise, so noise can not block or attenuate the incoming and outgoing noise This greatly occurs.

Proposed to solve this problem to some extent is known as the Utility Model Registration No. 20-380999 'Assembled sound absorbing panel for noise damping' in Korea.

This is to adhere (attach) the sound absorbing material and the perforating member to the inner surface of the panel body such as a steel plate air conditioner, so that the noise is introduced through the holes (perforations) of the perforated member to be absorbed by the sound absorbing material to be extinguished.

However, since the perforated member performs only a role of simply supporting the sound absorbing material from being separated, the sound absorbing effect cannot be expected at all, and thus the sound absorbing effect is somewhat reduced since the sound absorbing material is absorbed only by the absorbing material attached to the inner surface of the panel body. .

That is, when the noise or vibration is small, it can be easily removed by the sound absorbing material.However, when the noise and vibration are large, the noise (infiltration) of the sound absorbing material collides with the panel body and is reflected and discharged to the outside of the sound absorbing material. Phenomenon occurs, and the reflected noise reflected by the panel body and discharged to the outside of the sound absorbing material collides with each other from the outside of the sound absorbing material and the outside of the sound absorbing material to interfere with the inflow of the noise, thereby reducing the sound absorbing effect of the noise. have.

In addition, as an improved damper installed at the inlet of the housing (case, cabinet) to control the amount of air introduced, 'double blade of duct damper' is known by Korean Utility Model Registration No. 20-183761.

This improves the blade (plate) to be a single plate (hollow) to form the blade plate on both sides of the double (lap), but this also can not be expected sound absorption effect, only the flow of air by the blade formed obliquely You can only do it somewhat smoothly.

The present invention is to provide an improved noise reduction damper to solve the above problems to greatly improve the noise effect.

According to the present invention, a plurality of damper blades are installed in the damper housing formed in a rectangular shape (square) at regular intervals so as to be opened and closed collectively. The damper housing is a porous sound absorbing material (insulating material) inside the housing. And the metal fiber porous sound absorbing plate is installed in order to form a noise damping housing, and the damper blade is to provide a noise reduction damper formed by connecting the metal porous sound absorbing plate to the outer surface of the porous sound absorbing material to form a noise damping blade. .

Another object of the present invention is to provide a noise damping damper which is reduced while the sound is absorbed by the porous sound absorbing material and the metal fiber porous sound absorbing plate installed in the damper housing and the damper blade when air (air) passes into the damper housing. .

Another object of the present invention is to form a sound-absorbing plate installed on the inner surface of the damper housing and a blade provided inside the aluminum fiber porous plate combined with an X-band metal plate on both sides of the aluminum fiber, so that air can pass through The purpose of the present invention is to provide a noise damping damper that is capable of greatly absorbing and extinguishing noise generated at the time and greatly improving the noise effect.

The above and other objects of the present invention,

In the damper housing formed in a rectangular shape in which a plurality of damper blades are installed in a shaft at regular intervals to open and close collectively,

The damper housing is formed by laminating the thermal insulation material 12 and the metal fiber porous sound absorbing plate 11 on the inner surface of the housing 13 in order to form a noise reduction damper housing 10;

The damper blade is formed by the noise reduction damper blade 15 by integrally connecting the metal fiber porous sound absorbing plate 17 to the outer surface of the porous sound absorbing material 16 in which the shaft 15-1 is installed at the center thereof. It is achieved by the noise reduction damper (3) characterized in that.

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

1 to 3 show a specific implementation of the noise reduction damper 3 according to the present invention, and FIGS. 1A to 1F are front and side views of the noise reduction damper 1 according to the present invention. 2A to 2C are cross-sectional views, detailed plan views, and cross-sectional views taken from a metal fiber porous sound absorbing plate installed in the noise reduction damper 3 according to the present invention, and FIG. 3. Is an exemplary view showing a state in which the noise reduction damper (3) according to the present invention is installed in the noise reduction type air conditioner (1).

Noise reduction damper 3 according to the present invention was formed as shown in Figures 1a to 1f.

The noise reduction damper housing 10, which is distributed inside and behind the space portion, is integrally bonded to the inner surface of the damper housing 13, and the metal fiber porous sound absorbing plate 11 is attached to the inner surface of the thermal insulation material 12. Bonded integrally, the both ends of the inlet and outlet formed an adhesive plate 14 integrally so that it can be easily mounted (combined) with other devices after the ship.

In the interior of the noise reduction damper device housing 10 formed as described above, while maintaining a plurality of noise reduction damper blades 15 at regular intervals, they are installed by the shaft 15-1 so as to be sealed by the sealing holes 19. It can be opened and closed collectively by operation.

The noise reduction damper blade 15 has a metal fiber porous sound absorbing plate 17 installed on both sides of the shaft 15-1 in a streamlined manner, and filled with a soft porous sound absorbing material 16 therein, and a metal fiber porous material. Sealing pads 18 were integrally coupled to both ends of the sound absorbing plate 17.

In particular, the porous metal sound-absorbing plates 11 and 17 installed in the noise reduction damper housing 10 and the damper blade 15, respectively, are provided with an aluminum fiber porous plate 20 as illustrated in FIGS. 2A to 2C. The aluminum fiber porous plate 20 is integrally bonded to each of the X-band metal plate 22 on both sides of the aluminum fiber 21, but the binding pieces 23 of both X-band metal plate 22 is aluminum It was embedded in the fiber 21 to be inclined so as to be supported.

Hereinafter, an operation relationship of the noise reduction damper 3 according to the present invention formed as described above will be described.

The noise reduction damper 3 according to the present invention is installed and used in the noise reduction type air conditioner 1 as illustrated in FIG. 1.

Noise reduction air conditioner (1) is a noise reduction suction unit (4), the noise reduction damper unit (3), the filter device and the heat exchanger unit (6) and the blower from the suction side to the discharge side ( 5) is formed of a built-in air conditioner chamber (2), the exhaust noise reduction chamber (7) installed inside the noise reduction framework.

When the switch (not specifically shown) is turned ON, the blower fan is operated when the reduction motor of the blower 5 is operated, and suction force is generated inside the air conditioner chamber 2 by the blower fan operated. The outside air is sucked through the noise reduction and suction device unit 4 by the suction force generated inside the air conditioner chamber 2.

Outside air sucked through the noise reduction and suction device unit 4 passes through the noise reduction damper 3 according to the present invention, and noise is removed (damped).

The noise introduced adjacent to the inner surface of the noise reduction damper housing 10 passes through the metal fiber porous sound absorbing plate 11 made of the aluminum fiber porous plate 20, and partly disappears and is sucked into the porous sound absorbing material 12 (inflow). ) And are extinguished by the porous sound-absorbing material 12 while being absorbed by the porous sound-absorbing material 12 while being reflected by colliding with the inner surface of the sound absorbing plate 13.

In addition, as illustrated in FIG. 1E, the noise passing through the noise reduction damper blades 15 that are opened is passed through the metal fiber porous sound absorbing plates of the noise reduction damper blades 15 made of the aluminum fiber porous plate 20. While passing through 17) part of the extinction and the sound absorbing extinction or attenuation as it enters the porous sound absorbing material (16).

As described above, the outside air from which the noise is removed while passing through the noise reduction damper housing 10 is passed through the air conditioner chamber 2 and the exhaust noise reduction chamber 7 in order to attenuate the noise so that the duct (not specifically shown) is removed. It is supplied to the intended place through the room.

Noise reduction damper (3) according to the present invention is the inner surface of the noise reduction damper housing 10 and the metal fiber porous sound-absorbing plate (11) (17) of the noise reduction damper blade (15) is formed of an aluminum fiber porous plate (20) Because noise is repeatedly sucked in and extinguished, excellent soundproofing effect can be obtained.

In particular, the aluminum fiber porous plate 20 is because the X-band metal plate 22 is coupled to both sides of the aluminum fiber 21 can be obtained excellent sound absorption performance by the aluminum fiber (21).

In addition, it is thin and light in weight, light in weight, excellent in workability and construction, is resistant to wetting and dries quickly so that it always stays dry.

Although the present invention has been described in detail only with respect to the specific examples described, it will be apparent to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and such variations and modifications are within the scope of the appended claims.

In the noise reduction damper according to the present invention, a plurality of damper blades are installed in the damper housing formed in a rectangular shape (square) at regular intervals so that the damper housing can be opened and closed collectively. A porous sound absorbing material (insulating material) and a metal fiber porous sound absorbing plate are installed in this order to form a noise damping housing, and the damper blade is formed by connecting a metal porous sound absorbing plate to the outer surface of the porous sound absorbing material to form a noise reducing damper blade.

When air (air) passes into the damper housing, the noise is absorbed and reduced by the porous sound absorbing material and the metal fiber porous sound absorbing plate installed in the damper housing and the damper blade, so that the damping effect of the noise can be improved and installed on the inner surface of the damper housing. The sound absorbing plate and the blades installed inside are formed by the aluminum fiber porous plate combined with the X-band type metal plate on both sides of the aluminum fiber to absorb and extinguish the noise generated when the air passes through. It can be improved.

Claims (5)

In the damper housing formed in a rectangular shape in which a plurality of damper blades are installed in a shaft at regular intervals to open and close collectively, The damper housing is formed by laminating the thermal insulation material 12 and the metal fiber porous sound absorbing plate 11 on the inner surface of the damper housing 13 as a noise reduction damper housing 10; The damper blade is formed by the noise reduction damper blade 15 by integrally connecting the metal fiber porous sound absorbing plate 17 to the outer surface of the porous sound absorbing material 16 in which the shaft 15-1 is installed at the center thereof. Noise reduction damper characterized by the above-mentioned. The noise reduction damper blade (15) installed in the noise reduction damper housing (10) of claim 1; Installing the porous sound absorbing plates 17 on both sides of the shaft 15-1 in a streamlined fashion; Filled with a flexible porous sound absorbing material 16 inside the porous sound absorbing plate 17 formed in a streamlined shape; Combining the sealing pad 18 integrally with both ends of the porous sound absorbing plate 17; Noise reduction damper characterized in that. The method of claim 1, wherein the noise reduction damper housing (10) and the noise reduction damper blades (15), respectively, the metal fiber porous sound absorbing plate (11) (17); The aluminum fiber porous plate 20; noise reduction damper characterized in that. The method according to claim 3, wherein the aluminum fiber porous plate 20; The X-band metal plate 22 is integrally bonded to both surfaces of the aluminum fiber 21; The binding pieces 23 of both X-band metal plates 22 are inclinedly embedded in the aluminum fibers 21; Noise reduction damper characterized in that. The method of claim 4, wherein the X-band metal plate 22 of the aluminum fiber porous plate 20; Aluminum metal plates (AL. METAL PLATE); Noise reduction damper characterized in that.

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