Bionic noise-reducing air-conditioning grille

A grille and air conditioner technology, applied in the direction of noise suppression, airflow control components, etc., can solve the problems of life, work and study troubles, rare newspapers, no grille aerodynamic noise prediction publications, etc., to achieve simple manufacturing process, Low-cost, easy-to-achieve effects

Active Publication Date: 2016-03-30
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aerodynamic noise of the air conditioner is mainly composed of intake noise, fan blade noise, pipe noise and air outlet noise. The aerodynamic noise at the air outlet is mainly the dipole noise on the grille surface, which is often closer to the noise receiver. , causing serious troubles to people's life, work and study
Foreign scholars have begun to focus on the aerodynamic noise of air-conditioning grilles, but so far, there are no related publications on the prediction of grille aerodynamic noise, while domestic research on grille aerodynamic noise is rarely reported

Method used

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no. 1 example

[0026] Such as figure 1 , Figure 5 with Figure 11 As shown, it is the first embodiment of the present invention. This embodiment has a sawtooth structure 1 on the front edge and the rear edge of the grid, and the sawtooth unit bodies 11 are evenly distributed along the edge of the grid. The leading and trailing edges are distributed symmetrically; the sawtooth structure 1 is a triangular sawtooth structure, and the thickness A of the grid of the triangular sawtooth structure is 1 1-4mm, the width W of the sawtooth unit body 11 1 with height H 1 Equal, grid thickness A 1 and sawtooth unit height H 1 The ratio is 1:5-1:10, the height H of the sawtooth unit 1 with grid width B 1 The ratio is 1:2-1:5, the rounding radius R of the grid edge 1 with grid thickness A 1 The ratio is 1:2.

[0027] Such as figure 2 , Image 6 with Figure 12 As shown, it is the second embodiment of the present invention. This embodiment has a sawtooth structure 1 on the front edge and the...

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Abstract

The invention discloses a bionic noise-reducing air conditioner grid. Sawtooth structures are arranged on the front edge and the rear edge of the bionic noise-reducing air conditioner grid, sawtooth unit bodies of the sawtooth structures are evenly distributed on the edges of the bionic noise-reducing air conditioner grid, and the sawtooth unit bodies are symmetrically distributed on the front edge and the rear edge of the bionic noise-reducing air conditioner grid. The sawtooth structures are triangular sawtooth structures or spline-shaped sawtooth structures or semi-oval sawtooth structures or semi-circular sawtooth structures. The sawtooth structures on the front edge and the rear edge of the bionic noise-reducing air conditioner grid can prevent vortexes on the tail portion of the bionic noise-reducing air conditioner grid from falling off, pulsating pressure produced by unsteady-state airflow on the surface of the bionic noise-reducing air conditioner grid can be reduced, air power noise produced by the bionic noise-reducing air conditioner grid through the airflow can be reduced, and interference of the noise on working and the living environment can be reduced.

Description

technical field [0001] The invention relates to an air-conditioning grille, in particular to a bionic noise-reducing air-conditioning grille. Background technique [0002] Air conditioners are electrical products that manually adjust air temperature, humidity, cleanliness, airflow speed, and air quality to meet certain requirements for environmental comfort. Since the advent of air conditioners, their noise has been a concern. Reducing air-conditioning noise has always been an important task for scientific research institutions and air-conditioning R&D companies. [0003] Air-conditioning system noise is divided into mechanical noise and aerodynamic noise in terms of generation methods. The mechanical noise is mainly caused by the vibration of the compressor and the fan, which has been well suppressed by improving the design and improving the mechanical manufacturing technology. The aerodynamic noise of the air conditioner is mainly composed of intake noise, fan blade noi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F13/08F24F13/24
Inventor 张成春王文强王晶刘庆萍任露泉
Owner JILIN UNIV
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