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Oil fume absorbing and noise reducing device of range hood

A range hood and noise reduction technology, applied in the field of range hoods, can solve problems such as insignificant effects, and achieve good effects of reducing noise, preventing outward propagation, and absorbing noise sound waves

Active Publication Date: 2014-12-03
VATTI CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with long-term design optimization, the effect of reducing noise through the above methods has become less and less obvious

Method used

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  • Oil fume absorbing and noise reducing device of range hood
  • Oil fume absorbing and noise reducing device of range hood
  • Oil fume absorbing and noise reducing device of range hood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1 to Figure 3 , Figure 5 to Figure 9 As shown, a smoking noise reduction device for a range hood includes a volute 1 fixedly connected to a range hood casing 5, and the volute 1 is provided with a wind wheel 2 and a motor 3 for driving the wind wheel 2 to rotate The inside of the wind wheel 2 is provided with a sound-absorbing part 4 fixedly connected to the box body 5, the sound-absorbing part 4 includes a sound-absorbing shell 41, and the sound-absorbing shell 41 is provided with a shell cavity 47, and the The shell wall of the sound-absorbing shell 41 is also provided with a plurality of sound-absorbing through-holes 42 communicating with the shell cavity 47 , and the shell cavity 47 is filled with sound-absorbing material 43 . Since the inside of the volute 1 is the main source of the noise of the range hood, the sound-absorbing member 4 is arranged inside the volute 1, and the sound-absorbing material 43 can directly and effectively absorb the noi...

Embodiment 2

[0044] Such as Figure 4 As shown, the difference between embodiment 2 and embodiment 1 is:

[0045] The mounting part 44 is a horizontal shaft connected to the small end of the sound-absorbing shell 41 , and its other end is fixedly connected to the box body 5 .

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Abstract

The invention discloses an oil fume absorbing and noise reducing device of a range hood. The device comprises a volute fixedly connected with a box body of the range hood, wherein a wind turbine and a motor driving the wind turbine to rotate are arranged in the volute, a sound absorbing member connected with the box body is arranged inside the wind turbine, the sound absorbing member comprises a sound absorbing shell which is provided with a shell cavity, a plurality of sound absorbing through holes communicated with the shell cavity are formed in the wall of the sound absorbing shell, and the shell cavity is filled with a sound absorbing material. The device is simple in structure and good in noise reducing effect.

Description

【Technical field】 [0001] The invention relates to a range hood, more specifically to a smoking noise reduction device for the range hood. 【Background technique】 [0002] In order to quickly and effectively discharge the oily fumes produced during the cooking process to the outside, a more conventional method is to install a range hood above the cooking equipment. In order to quickly extract the fumes and protect human health, major range hood manufacturers have introduced range hoods with large air volumes. As the air volume increases, the noise generated by range hoods is also increasing. This strong noise will cause housewives and kitchen operators to have adverse reactions such as irritability, headache, and heart palpitations. Long-term use will have a serious impact on physical and mental health. [0003] The noise sources of the range hood are mainly aerodynamic noise and mechanical vibration noise. In order to reduce the aerodynamic noise, it can be achieved by opti...

Claims

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Application Information

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IPC IPC(8): F24C15/20
Inventor 黄启均李永波关建国文士胜黄起树
Owner VATTI CORP LTD
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