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Method and device for eliminating noise of electromagnetic valve

An electromagnetic valve, noise technology, applied in the direction of valve device, valve operation/release device, valve details, etc., can solve problems such as poor user experience

Active Publication Date: 2016-11-16
BEIJING XIAOMI MOBILE SOFTWARE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Electromagnetic valves will inevitably produce mechanical noise during operation, which in turn brings poor user experience to users

Method used

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  • Method and device for eliminating noise of electromagnetic valve
  • Method and device for eliminating noise of electromagnetic valve
  • Method and device for eliminating noise of electromagnetic valve

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Embodiment Construction

[0044] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0045] figure 1 is a flow chart of a method for eliminating electromagnetic valve noise according to an exemplary embodiment, as shown in figure 1 As shown, the method for eliminating the noise of the electromagnetic valve is used in the terminal, including the following steps 101-102:

[0046] In step 101, a pulse width modulation PWM signal is provided to the electromagnet, and the...

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Abstract

The invention discloses a method and device for eliminating noise of an electromagnetic valve. The method comprises the following steps: providing a PWM (Pulse Width Modulation) signal for an electromagnet which is used for controlling a switch of the electromagnetic valve; and adjusting and controlling the duty cycle of the PWM signal of the electromagnet according to a preset speed until the electromagnetic valve is opened and / or closed. According to the technical scheme, the duty cycle of the PWM signal is controlled to increase or decrease by means of software algorithm approach without changing a conventional circuit structure to increase or reduce the electromagnetic force of the electromagnet, so that no noise is produced when the electromagnetic valve is opened or closed.

Description

technical field [0001] The present disclosure relates to the technical field of intelligent control, in particular to a method and device for eliminating noise of an electromagnetic valve. Background technique [0002] At present, electromagnetic valves used in humidifiers and other equipment or other products controlled by electromagnets will generate noise during operation, which causes a very bad experience for users. Especially for some household products that will be used for a long time, noise must be eliminated or minimized. For example, the top-filling humidifier is a humidifier with a relatively new water-filling method. Compared with the traditional bottom-filling water-filling method, it is more user-friendly and the user experience is better. However, the top-filling humidifier must use a valve when discharging water, and the valve is mostly electromagnetic. Electromagnetic valves will inevitably produce mechanical noise during operation, which in turn brings p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06F16K51/00
CPCF16K31/06F16K51/00
Inventor 余久平黄晓波刘东旭
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD