Active and passive combined sound absorption door/window ventilation device

A ventilation device, active and passive technology, applied in ventilation layout, sound insulation doors/windows, etc., can solve problems such as difficulty in functioning, low frequency sound absorption and sound insulation ability of ventilation sound insulation windows, and impact on the practicability of sound insulation windows, etc. Beautiful appearance, convenient operation, convenient for large-scale production effect

Inactive Publication Date: 2016-10-05
SUZHOU SOUND TECH TECH CO LTD
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for low-frequency noise below 200Hz, the above measures are difficult to play a role
The low-frequency sound absorption and insulation capa

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Active and passive combined sound absorption door/window ventilation device
  • Active and passive combined sound absorption door/window ventilation device
  • Active and passive combined sound absorption door/window ventilation device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0025] like figure 2 As shown, the active and passive combination of the sound-absorbing door and window ventilation device of the present invention carries out profile design, and is made into a ventilated door and window profile. The main body of the profile is made of aluminum alloy, and the ventilation system is composed of a ventilation duct 1, an air inlet 2, a dust cover 12, an air outlet 3 and an axial flow exhaust fan 4. The axial flow exhaust fan is imported from Germany and is silent Axial flow fan with 5W power and 42dB background noise. The upper part of the profile is conn...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses an active and passive combined sound absorption door/window ventilation device which comprises an air inlet, an air outlet, a ventilation duct, an axial flow exhaust fan, a passive sound absorption device and an active noise control device. The active noise control system comprises an active controller, a peripheral circuit, a reference sensor, error sensors and control sound sources. The control sound sources and the error sensors are arranged on the back side of the exhaust fan at the air outlet. The reference sensor is arranged in the position of the air inlet. According to the active and passive combined sound absorption door/window ventilation device, forced air exhaustion is conducted through the axial flow exhaust fan, so that indoor ventilation and air exchange are achieved. Sound absorption materials and sound absorption structures are laid on the inner wall of the ventilation duct so as to conduct sound absorption control on medium-high frequency noise. Low-frequency noise is controlled by the active noise device. The active and passive combined sound absorption door/window ventilation device can be arranged on any side of a door/window and has good wide-frequency sound absorption performance, good ventilation performance can be provided, and noise pollution can be prevented and controlled.

Description

technical field [0001] The invention relates to a noise control system and a ventilation system, in particular to a noise control system and a ventilation system used in building doors and windows. Background technique [0002] With the continuous advancement of the pace of urbanization in my country, urban noise pollution in China has become an important part of environmental pollution. Urban traffic noise, construction noise, entertainment noise, etc. all affect people's work and life. However, 80% of the noise in the house enters through windows and doors. If you want to get a quiet life, installing soundproof doors and soundproof windows is a better choice. However, ordinary soundproof windows have the problem of "noisy noise when opening the window, suffocation when closing the window", which cannot fundamentally solve this problem. [0003] The ventilation and sound insulation windows that have emerged in recent years can play a role to a certain extent. The sound abs...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E06B7/02E06B5/20
Inventor 唐俊
Owner SUZHOU SOUND TECH TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap