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Silencing apparatus

A sound-absorbing device and sound-absorbing technology, applied to sound-proof doors/windows, windows/doors, building components, etc., can solve the problems of cost increase, large installation space of shutters, poor ventilation efficiency, etc., and achieve the effect of improving the sound-absorbing effect

Inactive Publication Date: 2012-01-25
EMU KEE SEIKO
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the inside of the main body of the door leaf is made hollow to form a passage, and the passage itself is used as a sound-absorbing space while the shutter is installed at the end of the passage, so its structure spreads over the entire door leaf and cannot be used alone as a shutter.
Therefore, the increase in cost is a matter of course, and there is also a problem of lack of versatility to construction sites
In addition, when construction is performed, since a considerable installation space is required for the size of the louver exposed on the surface, not only is it time-consuming in construction work, but it is also not good in terms of ventilation efficiency.

Method used

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Embodiment Construction

[0018] The noise reduction device 1 according to one embodiment of the present invention has a louver structure. On the first side surface 3a of the main body case 3 and the second side surface 3b on the rear side thereof, a plurality of ventilation openings 2 are provided in the left-right direction. But when figure 1 Only the first side 3a can be seen in the middle, and the second side 3b on the rear side cannot be seen. Such as figure 1 As shown, a noise-side ventilation opening 2a is provided on this first side 3a. When the noise reduction device 1 is installed, the noise-side vent 2a is directed toward the side where the noise source exists. Furthermore, although in figure 1 It is not shown in , but on the second side 3b, there is a vent 2b on the quiet side.

[0019] figure 2 express figure 1 A part of the horizontal cross-section of the sound attenuation device 1 shown. Among the plurality of blade bodies 4 constituting the louver structure, in figure 2 Only ...

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Abstract

The present invention provides a silencing arrangement. The silencing arrangement has a louver structure which arranges multiple blade-bodies and processes internal and external ventilation of the buildings by ventilation channels formed on the blade-bodies and between blade-bodies. Each blade includes a pair of silencing parts arranged on the noise side and the mute side respectively and an acoustic introduction part connecting theses silencing parts. Each blade is arranged that the length direction axis of one silencing part parallelly extends along the inclined direction opposite to the length direction axis of the other silencing part, but one axis is shift relative to the other one.

Description

technical field [0001] The present invention relates to a noise reduction device formed with a louver structure in which a plurality of blades are arranged to form a ventilation passage between the blades. More specifically, it involves installing the louver structure constituting the noise reduction device on the wall of the building structure, so that the noise source on one side of the louver structure passes through the ventilation passage between the blades to the other side together with the outside air. (Silent side) A sound-absorbing device that reduces the energy of propagating noise sound waves. Background technique [0002] In the past, the sound insulation wall has been widely known as a device for preventing noise generated from automobiles, construction sites, and other noise sources. Install a wall made of light-transmitting resin board or metal parts beside the road or around the construction site, so that the noise generated on one side of the wall cannot b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06B5/20E06B7/082
Inventor 竹田唱一大日方幸人荒井刚中村佑纪
Owner EMU KEE SEIKO
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