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Range hood with shock absorption and noise reduction structure

A range hood and noise reduction technology, applied in the removal of range hood, household appliances, mechanical equipment, etc., can solve the problems of noise, limited sound absorption effect of sound-absorbing cotton, centrifugal fan vibration, etc., to improve the sound absorption effect of broadband, reduce Vibration noise, the effect of improving low-frequency sound absorption performance

Inactive Publication Date: 2020-07-10
合肥柏隆科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The range hoods in the prior art generally use sound-absorbing cotton for sound absorption and noise reduction, but the sound-absorbing effect of the sound-absorbing cotton is limited, and the centrifugal fan will vibrate during use, thereby generating noise.

Method used

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  • Range hood with shock absorption and noise reduction structure
  • Range hood with shock absorption and noise reduction structure

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Embodiment Construction

[0017] Below, the technical solution of the present invention will be described in detail through specific examples.

[0018] Such as Figure 1-2 as shown, figure 1 It is a structural schematic diagram of a range hood with a shock-absorbing and noise-reducing structure proposed by the present invention; figure 2 It is a structural schematic diagram of the sound-absorbing panel 4 in the present invention.

[0019] refer to figure 1 with figure 2 , a range hood with a shock-absorbing and noise-reducing structure proposed by the present invention includes a fan housing 2 arranged on the fume collecting hood 1 and a fan 3 installed in the fan housing 2. A noise reduction device is provided inside the casing 2, and the noise reduction device includes a shock absorber and a plurality of sound-absorbing panels 4;

[0020] The shock-absorbing seat includes a shock-absorbing cover plate 6 and a shock-absorbing base 5. The bottom of the fan 3 is fixed on the shock-absorbing cover...

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Abstract

The invention provides a range hood with a shock absorption and noise reduction structure. The range hood includes a smoke collecting cover, a fan shell arranged on the smoke collecting cover and a fan installed in the fan shell. The fan shell is internally provided with a noise reduction device. The noise reduction device includes a shock absorbing seat and a plurality of sound absorption plates.The shock absorbing seat includes a shock absorbing cover plate and a shock absorbing base. The fan is installed on the shock absorbing cover plate, the shock absorbing base is fixedly connected withthe two sides of the fan shell, and a gap for air passing is reserved between the shock absorbing base and the fan shell. A first magnetic sheet is embedded at the bottom of the shock absorbing base,a second magnetic sheet is arranged on the shock absorbing base, and the first magnetic sheet and the second magnetic sheet have the same polarity. The multiple sound absorption plates are arranged in the circumferential direction on the inner wall of the fan shell located below the fan, and a plurality of sound absorption protrusions are arranged on the sides, facing the middle of the fan shell,of the sound absorption plates. According to the range hood, the noise of the range hood is greatly reduced by the cooperation of the shock absorbing base and the sound absorption plates.

Description

technical field [0001] The invention relates to the technical field of range hoods, in particular to a range hood with a shock-absorbing and noise-reducing structure. Background technique [0002] The range hood uses the principle of fluid dynamics to work, sucks and exhausts the range hood through a centrifugal fan installed inside the range hood, and uses a filter to filter some grease particles. The centrifugal fan includes a volute, an impeller installed in the volute and a motor that drives the impeller to rotate. When the impeller rotates, a negative pressure suction is generated in the center of the fan, and the oil fume under the range hood is sucked into the fan, and after being accelerated by the fan, it is collected by the volute and guided out of the room. [0003] The range hoods in the prior art generally use sound-absorbing cotton for sound absorption and noise reduction, but the sound-absorbing effect of the sound-absorbing cotton is limited, and the centrif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20F16F15/02F16F15/04F04D29/66
CPCF04D29/664F04D29/668F16F15/03F16F15/04F24C15/20
Inventor 洪斌
Owner 合肥柏隆科技发展有限公司
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