Air conditioner outdoor fan starting method

An outdoor fan and outdoor fan technology, applied in air conditioning systems, space heating and ventilation, heating methods, etc., can solve problems such as difficult control and high noise, and achieve the effects of reducing workload, noise, and startup noise.

Active Publication Date: 2014-12-24
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of large noise and difficult control during the start-up process of the outdoor fan of the existing air conditioner, the present invention provides a start-up method for the outdoor...

Method used

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  • Air conditioner outdoor fan starting method
  • Air conditioner outdoor fan starting method

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Embodiment 1

[0030] Embodiment one, see figure 1 As shown, the method for starting the outdoor fan of the air conditioner in this embodiment includes the following steps:

[0031] In the initialization step, the air conditioner is powered on, the main control chip sends an instruction to start the outdoor fan, and the EEPROM provides the outdoor fan with a PWM voltage with an initial duty ratio of a;

[0032] In the main control step, the outdoor fan feeds back the actual speed to the main control chip, and the main control chip compares the actual speed with the target speed. If the actual speed is lower than the target speed, then increase the PWM duty ratio according to the time interval T until the actual speed is equal to the target speed. Rotating speed;

[0033] In the noise feedback step, the noise signal is collected regularly, and the strength of the noise signal is compared with the noise target strength. If the noise strength is greater than the target strength, the value of t...

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PUM

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Abstract

The invention discloses an air conditioner outdoor fan starting method. The air conditioner outdoor fan starting method comprises the following steps of initializing, main controlling and noise feeding back. In the initializing step, an air conditioner is powered on to be started, a main control chip gives an outdoor fan starting instruction, and an EEPROM provides a PWM voltage with the initial duty ratio value being a to an outdoor fan. In the main controlling step, the outdoor fan feeds back the actual rotation speed to the main control chip, the main control chip compares the actual rotation speed with a target rotation speed, and if the actual rotation speed is lower than the target rotation speed, the duty ratio value of the PWM is increased according to the time interval T until the actual rotation speed is equal to the target rotation speed. In the noise feeding back process, noise signals are collected regularly, the strength of the noise signals is compared with target noise strength and if the noise strength is higher than the target strength, the value of the time interval T is increased. According to the air conditioner outdoor fan starting method, the noise strength signal is collected and fed back to a control system to be used as a parameter for outdoor fan starting control, the duty ratio of the fan starting voltage is adjusted in an adaptive mode, the starting noise is effectively reduced, and the matching and debugging workload of a fan system is also reduced.

Description

technical field [0001] The invention belongs to the technical field of motor start-up control, and relates to a motor start-up control method, in particular to a start-up method for an air conditioner outdoor fan. Background technique [0002] In the control of the air conditioner, in order to control the operation of the external fan, the EEPROM sets an initial PWM (pulse width modulation) duty cycle value a for an initial interval T, and then the fan starts and runs. After the fan is running, the actual speed will be fed back to the The main control chip, the main control chip compares the actual speed with the target speed, if the actual speed is less than the target speed, increase the PWM duty cycle value, the actual speed is equal to the target speed, and the start-up mode of the air conditioner external fan is completed, every time the PWM duty cycle value is changed Both the interval time and the amount of change are fixed values, and the system does not take into a...

Claims

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Application Information

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IPC IPC(8): F24F11/00F24F1/40
Inventor 郭亮董晓莉寇秋莉
Owner HAIER GRP CORP
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