Range hood

A range hood and fan technology, which is applied in the field of electrical appliances, can solve problems such as poor smoke extraction effect of range hoods, achieve obvious effects of noise reduction, prolong service life, and improve performance

Pending Publication Date: 2020-11-13
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, the embodiment of the present invention aims at the problem that the existing microphone, speaker and controller are integrated in the noise reduction pipe of the range hood, which leads to the problem that the smoke extraction effect of the range hood is poor, and provides a range hood, which can not only solve this problem, It can also achieve the technical effect of overall noise reduction of range hood noise

Method used

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Embodiment Construction

[0036] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0037] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counte...

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PUM

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Abstract

The invention relates to a range hood. The range hood comprises a range hood body and an active noise reduction structure; the active noise reduction structure comprises a loudspeaker assembly, a controller and a plurality of microphones; the controller is electrically connected with the microphones and the loudspeaker assembly; the loudspeaker assembly is arranged in a shell and located below anair inlet of a draught fan of the range hood body; and the microphones are arranged in the shell, distributed in an array mode and surround the periphery of the draught fan. The microphones are arranged in the shell and surround the periphery of the draught fan in an array distribution mode, and the loudspeaker assembly is distributed below the draught fan, so that an arrangement mode that an existing active noise reduction structure is integrated in a noise elimination pipeline is changed, the oil fume extraction effect of the range hood can be improved, the noise reduction effect can be effectively improved, and global noise reduction of the range hood noise is realized.

Description

technical field [0001] The invention relates to the technical field of electrical appliances, in particular to a range hood. Background technique [0002] The range hood will generate airflow noise during operation, which seriously affects the user experience. At present, in order to solve this technical problem, active noise reduction technology is usually used, that is, the noise generated by the range hood is collected by the microphone, and the collected noise sound wave is transmitted to the controller in the form of an electrical signal, which is analyzed and processed by the controller. Send instructions to the speaker to control the speaker to emit sound waves that match the noise sound waves to neutralize the noise sound waves, thereby achieving the effect of noise reduction. [0003] The above-mentioned microphones, speakers and controllers are usually integrated in the muffler duct of the range hood. This arrangement reduces the cross-section of the air flow pass...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20G10K11/178
CPCF24C15/20G10K11/178
Inventor 朱丽平肖彪李彬刘志华王重
Owner GREE ELECTRIC APPLIANCES INC
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