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Low-noise air purifier

An air purifier and low-noise technology, which is applied in air-conditioning systems, noise suppression, space heating and ventilation, etc., can solve the problems of low purification capacity of air purifiers, achieve no reduction in purification capacity, lower intermediate frequency, kill Microbicide sufficient effect

Inactive Publication Date: 2018-12-11
四川健尔莱医疗器械科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Or, some merchants claim that their purification noise is low, but it is actually an indicator under the lowest power, and the purification ability of the air purifier is also the lowest at this time.

Method used

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Experimental program
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Embodiment 1

[0021] Such as figure 1 As shown, a low-noise air purifier includes a housing 1, a filter module located inside the housing 1 and fixed on the inner wall of the housing 1, a photocatalytic module located behind the filter module, and a photocatalytic module located behind the filter module. The fan 7 behind the module; the housing 1 has an inner cavity with a sudden cross-sectional area; the inner wall of the housing 1 is filled with sound-absorbing cotton 8. It also includes a filter module located at the front 12 and fixed on the inner wall of the housing 1. The filter module includes at least one of the following filter screens: coarse filter screen 2, high efficiency filter screen 3, activated carbon filter screen 4 The coarse-efficiency filter 2, the high-efficiency filter 3, and the activated carbon filter 4 are arranged in parallel along the flow direction of the wind, and are fixed on the inner wall of the housing 1; and the photocatalytic module behind the filter module...

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Abstract

The invention discloses a low-noise air purifier. The low-noise air purifier comprises a shell, a filtering module which is positioned in the shell and is fixedly arranged on the inner wall of the shell, a photocatalytic module which is positioned behind the filtering module, and a fan which is positioned behind the photocatalytic module; the low-noise air purifier is characterized in that the shell is provided with an inner cavity with a sudden cross section area; the inner wall of the shell is filled with sound absorption cotton. When airflow passes through an air duct, the sound absorbing cotton can absorb the high-frequency part in the noise; the shell forms the inner cavity with a sudden cross-sectional area, the airflow suddenly expands through the inner cavity when flowing through the inner cavity, so that the sound impedance in the channel is suddenly changed, the sound wave reflection echo source with certain frequencies transmitted along the cavity is reflected, and the partsin low and medium frequency of noise are effectively reduced.

Description

Technical field: [0001] The utility relates to an air purifier, in particular to a low-noise air purifier. Background technique: [0002] Air purifiers have gradually entered people's field of vision in recent years because of the exposure of smog pollution. Various air purification manufacturers have introduced many types of air purifiers, which can be divided into physical filtration and electronic filtration according to their principles. Among them, physical purifiers usually include coarse-efficiency filters, HEPA filters, activated carbon and other multi-layer filtration purification. Because there are multi-layer filters, the wind resistance is large, so the motor must have enough speed to generate enough pressure to penetrate the multilayer Filter. The wind will be converted into noise through friction, so the noise of this type of air purifier is very loud, generally around 50DB. The electronic filter purifier replaces the traditional physical filter with a high-volta...

Claims

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Application Information

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IPC IPC(8): F24F3/16F24F13/28F24F13/24A61L9/20
CPCA61L9/20F24F3/16F24F13/24F24F13/28F24F2013/242F24F8/10F24F8/108F24F8/22
Inventor 张玉
Owner 四川健尔莱医疗器械科技有限公司
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