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Control method and device of fan assembly and drive circuit of fan assembly

A technology of drive circuit and control method, which is applied in heating and ventilation control systems, heating methods, mechanical equipment, etc., can solve problems such as large inrush current, reduced product reliability, unstable grid voltage, etc., and achieve reduction in inrush current. Effect of voltage fluctuation and reduction of inrush current

Active Publication Date: 2021-12-14
湖北美的楼宇科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the related technical solutions, the gear switching of the fan is directly started according to the set windshield, and the inrush current generated by the above starting method is relatively large, and the voltage fluctuation caused by the large inrush current will affect the power grid and other electrical appliances ( Such as electric lamps), resulting in unstable grid voltage, abnormal operation of electrical appliances (such as abnormal flickering of electric lamps), which do not meet the sales requirements of the product. In addition, the inrush current is the cause of voltage fluctuations, and the existence of inrush current will cause the control circuit of the fan Or the control device is damaged due to overcurrent, which reduces the reliability of the product

Method used

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  • Control method and device of fan assembly and drive circuit of fan assembly
  • Control method and device of fan assembly and drive circuit of fan assembly
  • Control method and device of fan assembly and drive circuit of fan assembly

Examples

Experimental program
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Effect test

Embodiment 1

[0057] According to an embodiment of the present invention, such as figure 1 As shown, the present invention provides a control method for a fan assembly, including:

[0058] Step 102, in response to the trigger instruction that the fan assembly is switched from the current wind control gear to the target wind control gear, sending a first control signal to drive the fan indicated by the first control signal to run;

[0059] Step 104, determining that the fan indicated by the first control signal is in a first steady state, and sending a second control signal to drive the fan indicated by the second control signal to run.

[0060] Wherein, the number of fans driven under the control of the first control signal is smaller than the number of fans driven under the control of the second control signal.

[0061] In the technical solution of the present invention, a control method for fan components is proposed. Specifically, when receiving a trigger instruction for switching the f...

Embodiment 2

[0068] In one embodiment of the present invention, as figure 2 As shown, a control method for fan components is proposed, including:

[0069] Step 202, in response to the trigger instruction that the fan assembly is switched from the current wind control gear to the target wind control gear, sending a first control signal to drive the fan indicated by the first control signal to run;

[0070] Step 204, determine to send the first control signal, and start timing;

[0071] Step 206, determine that the timing duration is greater than or equal to the first duration, and send a second control signal to drive the fan indicated by the second control signal to run.

[0072] In this technical solution, it is judged whether the fan indicated by the first control signal is in the first steady state by judging the timing duration after the first control signal, specifically, when the timing duration after sending the first control signal is greater than or equal to the first For a lon...

Embodiment 3

[0079] In one embodiment of the present invention, as image 3 As shown, a control method for fan components is proposed, including:

[0080] Step 302, in response to the trigger instruction of switching the fan assembly from the current wind control gear to the target wind control gear, sending a first control signal to drive the fan indicated by the first control signal to run;

[0081] Step 304, determining that the fan indicated by the first control signal is in the first steady state, and sending a third control signal to drive the fan indicated by the third control signal to run;

[0082] Step 306, determine that the fan indicated by the third control signal is in the second steady state, and send a second control signal to drive the fan indicated by the second control signal to run.

[0083] Wherein, the number of fans driven under the control of the third control signal is greater than the number of fans driven under the control of the first control signal, and smalle...

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Abstract

The present invention provides a control method and device of a fan assembly, and a drive circuit of the fan assembly. The control method of the fan assembly includes: responding to a trigger instruction that the fan assembly is switched from the current wind control gear to the target wind control gear, sending the first A control signal to drive the fan indicated by the first control signal to run; determine that the fan indicated by the first control signal is in the first steady state, and send a second control signal to drive the fan indicated by the second control signal to run; wherein , the number of fans driven under the control of the first control signal is smaller than the number of fans driven under the control of the second control signal. The number of fans started simultaneously by the fan assembly is reduced, so the current generated by the fan assembly at the moment of speed regulation is less than the inrush current when the fan is started directly according to the second control signal, thereby reducing voltage fluctuations.

Description

technical field [0001] The invention relates to the technical field of electromagnetic compatibility, in particular to a control method and device for a fan assembly and a drive circuit for the fan assembly. Background technique [0002] Electromagnetic compatibility (EMC) refers to the ability of a device or system to operate in compliance with the requirements in its electromagnetic environment without causing unbearable electromagnetic interference to any equipment in its environment, including EMS (electromagnetic susceptibility) and EMI (electromagnetic interference). Voltage fluctuation is a kind of EMI (electromagnetic interference), which is reflected in the interference of electric loads on public low-voltage power supply systems. For the power grid, it is not an ideal power supply. Due to its own internal resistance, when other loads start, the surge current will form a voltage drop on the internal resistance of the power grid, resulting in voltage fluctuations. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/89F24F11/88F24F11/77F24F11/72F24F11/74
CPCF24F11/89F24F11/88F24F11/77F24F11/72F24F11/74Y02B30/70
Inventor 黄俊豪孙良伟梅利军
Owner 湖北美的楼宇科技有限公司