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Sound-muffling smoke exhauster

A range hood and noise reduction technology, applied in the field of range hoods, can solve problems such as turbulent noise of centrifugal fans, and achieve the effects of reducing noise, improving mute function, and ensuring the quality of noise reduction

Inactive Publication Date: 2015-09-16
SUZHOU SILUOLAI AUTOMATIC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing centrifugal fan, the air intake of the volute mainly depends on the air inlet opened on the side, and the airflow sucked into the casing needs to be bent several times before entering the volute, so the traditional centrifugal fan has turbulent noise

Method used

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Embodiment Construction

[0016] The present invention will be further described now in conjunction with accompanying drawing. These drawings are simplified schematic diagrams only to illustrate the basic structure of the present invention in a schematic way, so they only show the components relevant to the present invention.

[0017] Such as figure 1 figure 2 As shown, a range hood that can be silenced includes a casing 1 and a volute 2, the volute 2 is arranged inside the casing 1, the lower end of the casing 1 is provided with an inlet, the upper end of the casing 1 is provided with an outlet, and the inside of the volute 2 A motor and an impeller are provided, the side end of the volute 2 is provided with an air inlet, the upper end of the volute 2 is provided with an air outlet, the air outlet communicates with the outlet of the casing 1, and the inner wall of the casing 1 opposite to the air inlet of the volute 2 is provided with The sound-absorbing plate 4; the volute 2 is arranged obliquely ...

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Abstract

The invention relates to a sound-muffling smoke exhauster. The sound-muffling smoke exhauster comprises a shell and a volute, wherein the volute is arranged in the shell, the lower end of the shell is provided with an inlet, and an outlet is formed in the upper end of the shell; the volute is internally provided with a motor and an impeller, one side end of the volute is provided with an air inlet, an air outlet is formed in the upper end of the volute, the air outlet is communicated with an outlet of the shell and the inner wall of the air inlet of the volute corresponding to the shell is provided with a sound-muffling plate; the volute is obliquely arranged in the shell, the silencing plate is arranged on the inner wall of the shell, an acute angled air opening is formed between one side of the air inlet of the volute and the sound-muffling plate, and the air opening is downwards formed; the sound-muffling plate is additionally arranged, and the acute angled air opening is formed in one side of the sound-muffling plate and the air inlet of the volute, so that the air current entering the shell can be quickly introduced into the volute, the noise can be reduced by depending on the sound-muffling plate, and the silencing function of the whole smoke exhauster can be improved.

Description

technical field [0001] The invention relates to a sound-absorbing range hood. Background technique [0002] In the existing centrifugal fan, the air intake of the volute mainly depends on the air inlet opened on the side, and the airflow sucked into the casing needs to be bent several times before entering the volute, so the traditional centrifugal fan has turbulent noise . Contents of the invention [0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, and provide a range hood capable of sound attenuation. [0004] The technical solution adopted by the present invention to solve the technical problem is: a sound-absorbing range hood, including a casing and a volute, the volute is arranged in the casing, the lower end of the casing is provided with an inlet, and the casing The upper end of the casing is provided with an outlet, the volute is provided with a motor and an impeller, the side end of the volute ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
CPCF24C15/20
Inventor 不公告发明人
Owner SUZHOU SILUOLAI AUTOMATIC EQUIP
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