Noise reduction device

A sound-absorbing device and sound-absorbing technology, which are used in sound insulation, floors, building components, etc.

Pending Publication Date: 2019-08-16
夏敬懿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a sound attenuation device, aim

Method used

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] It should be noted that all directional indications (according to up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the drawings). According to the relative positional relationship, movement conditions, etc., when the specific posture changes, the directional indication will also change accordingly.

[0031] In add...

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Abstract

The invention discloses a noise reduction device. The noise reduction device comprises an air duct structure and a plurality of noise reduction parts, an air duct is constructed in the air duct structure and communicates with the exterior, the multiple noise reduction parts are arranged in the air duct in an array mode, in the process that sound waves impact the noise reduction parts or are reflected, sound energy is gradually decreased, and then the decibel of sound is decreased. According to the noise reduction device, the noise reduction parts are arranged in the air duct, so that in the process that the sound waves entering the air duct impact the noise reduction parts or are reflected in the air duct, the sound energy is gradually decreased, then the decibel of the sound is decreased,even the sound energy is gradually decreased to be zero, thus the effect of noise removal in the air duct is achieved, and meanwhile, the noise reduction device is simplified in structure, fast and convenient to mount, low in cost and obvious in noise reduction effect.

Description

technical field [0001] The invention relates to the technical field of noise reduction, in particular to a noise reduction device. Background technique [0002] In the prior art, the internal structure of the equipment exchanges air with the outside world through the air duct to achieve the purpose of heat dissipation, but the noise generated during the operation of the equipment is transmitted to the external environment through the air duct, such as a cabinet; the facility exchanges air with the outside world through the air duct , so as to achieve the purpose of entering fresh air, such as hotels and KTV, etc., but the noise inside the facility is transmitted to the external environment through the air duct, or the external noise enters the interior of the facility through the air duct to cause noise interference. Contents of the invention [0003] The main purpose of the present invention is to provide a sound attenuation device, aiming to solve the problem that the so...

Claims

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Application Information

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IPC IPC(8): E04B1/82
CPCE04B1/8209
Inventor 夏敬懿
Owner 夏敬懿
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