Method and device for start control of DC fan in air conditioner indoor unit

A technology of air conditioner indoor unit and DC fan, applied in heating and ventilation control system, noise suppression, space heating and ventilation, etc., can solve problems such as large DC fan and DC fan noise, and reduce startup noise Effect

Active Publication Date: 2015-09-23
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the greater the duty cycle of the PWM voltage, the greater the speed of the DC fan. Starting the DC fan with a larger duty cycle means that the DC fan that was not running will start at a higher speed instantly, so The DC fan makes a lot of noise when it starts

Method used

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  • Method and device for start control of DC fan in air conditioner indoor unit
  • Method and device for start control of DC fan in air conditioner indoor unit
  • Method and device for start control of DC fan in air conditioner indoor unit

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0021] figure 1 It is a flow chart of a start-up control method for a DC fan in an air conditioner indoor unit according to an embodiment of the present invention.

[0022] Such as figure 1 As shown, the start-up control method of the DC fan in the indoor unit of the air conditioner according to the embodiment of the present invention includes the following steps:

[0023] S1. Receive an instruction to start the DC fan.

[0024] S2. Control the DC fan to start with the initial duty cycle according to the start instruction.

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PUM

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Abstract

The invention discloses a method and a device for start control of a DC fan in an air conditioner indoor unit. The method comprises the following steps: S1, receiving a DC fan start command; S2, according to the start command, controlling the DC fan to start in an initial duty ratio; S3, detecting feedback information of the DC fan; S4, according to the feedback information, determining whether the DC fan starts successfully; S5, and if the DC fan is determined not to start successfully, improving the initial duty ratio according to a preset rule, and executing the steps S3-S5 repeatedly, until the DC fan starts successfully. The method for start control of a DC fan in an air conditioner indoor unit can reduce start noise of the DC fan.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a start-up control method and device for a DC fan in an indoor unit of an air conditioner. Background technique [0002] At present, in order to control the successful startup of the DC fan in the indoor unit of the air conditioner, the duty cycle of the PWM (Pulse Width Modulation, pulse width modulation) voltage is usually adjusted to a larger value when the DC fan is started. However, the greater the duty cycle of the PWM voltage, the greater the speed of the DC fan. Starting the DC fan with a larger duty cycle means that the DC fan that was not running will start at a higher speed instantly, so When the DC fan is started, it will make a lot of noise. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to provide a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F24F13/24
CPCF24F11/30F24F11/62F24F11/64F24F13/24F24F2013/247
Inventor 张郊
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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