Active noise reduction method and device and cooking equipment

A cooking equipment and active noise reduction technology, applied in cooking utensils, household utensils, applications, etc., can solve problems such as unsatisfactory low-frequency noise effects, loud noise, and affecting user experience

Active Publication Date: 2019-12-27
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

In order to power the knives for breaking or cutting food in some current cooking electrical products, they are usually equipped with high-speed motors, such as: wall breaking machines, soybean milk machines, etc., and the high-speed rotation of high-speed motors will generate relatively loud noises. , which greatly affects the user experience
[0003] At present, for the noise generated by such cooking appliances, the noise generate

Method used

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  • Active noise reduction method and device and cooking equipment
  • Active noise reduction method and device and cooking equipment
  • Active noise reduction method and device and cooking equipment

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Embodiment Construction

[0022] With more and more improved cooking appliances entering people's lives, people have put forward higher requirements for low noise when the cooking appliances are running.

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] See figure 1 , is a schematic flowchart of the active noise reduction method provided by an embodiment of the present invention, which can be applied to coo...

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Abstract

The embodiment of the invention discloses an active noise reduction method which is applied to cooking equipment and comprises the following steps: acquiring a current working mode of the cooking equipment; determining the current noise wave generated by the cooking equipment in the current working mode according to the current working mode and the corresponding relationship between the working mode and the noise wave; and generating a suppressed sound source which is the same as the current noise wave in amplitude and frequency and opposite to the current noise wave in phase, and outputting the suppressed sound source so as to reduce the current noise. In the embodiment of the invention, the suppression sound source which is opposite to the source noise of the cooking equipment in phase and equal in intensity is generated and is subjected to coherence superposition with the source noise signal of the cooking equipment in space to form a silencing 'dead zone', so that the purpose of active noise reduction is achieved, and better cooking experience is brought to a user.

Description

technical field [0001] Embodiments of the present invention relate to the field of household appliances, and in particular, to an active noise reduction method, device, and cooking equipment. Background technique [0002] In recent years, with the gradual improvement of people's living standards, more and more improved cooking appliances have entered people's lives. In order to power the knives for breaking or cutting food in some current cooking electrical products, they are usually equipped with high-speed motors, such as: wall breaking machines, soybean milk machines, etc., and the high-speed rotation of high-speed motors will generate relatively loud noises. , which greatly affects the user experience. [0003] At present, for the noise generated by such cooking appliances, the noise generated by the motor during the operation of the cooking equipment is mainly considered, so that noise reduction is carried out by passive means such as sound insulation and vibration iso...

Claims

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Application Information

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IPC IPC(8): A47J27/00A47J36/00A47J43/07
CPCA47J27/00A47J36/00A47J43/07
Inventor 区炳根吴坚
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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