Control circuit of AC fan and state detection method of AC fan of air conditioner
A control circuit and state detection technology, applied in heating and ventilation control systems, measuring current/voltage, instruments, etc., can solve problems such as inaccurate abnormal detection of AC fans, and achieve the effect of improving accuracy
Active Publication Date: 2021-11-23
GUANGZHOU HUALING REFRIGERATION EQUIP +1
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Problems solved by technology
[0004] The main purpose of the present invention is to provide a control circuit of an AC fan, an air conditioner and its AC fan state detection method and a storage medium, aiming to solve the technical problems of inaccurate detection of the AC fan of the air conditioner and hysteresis
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[0040] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0041] The main solution of the embodiment of the present invention is: the air conditioner is provided with a control circuit of the AC fan, and after the air conditioner obtains the operating current value of the AC fan detected by the detection unit on the control circuit of the AC fan, control The air conditioner executes an action corresponding to the operating current value.
[0042] Based on the indirect detection of the working state of the AC fan of the air conditioner, the detection result is inaccurate and there is a problem of hysteresis. The present invention proposes a control circuit of the AC fan, and a direct detection of the current of the AC fan is set on the control circuit of the AC fan. The current detection unit judges the working state of the AC fan by detecting the working current of the AC fa...
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The invention discloses a control circuit of an AC fan, which includes a controller; a fan drive unit, the fan drive unit is connected between the controller and the AC fan, and the fan drive unit is connected according to the control signal of the controller Start or shut down the AC fan; a current detection unit, the current detection unit is connected between the AC fan and the controller, and the current detection unit detects the current of the AC fan and outputs it to the controller. The invention also provides a method for detecting the state of the AC fan of the air conditioner. The control circuit of the AC fan of the present invention is provided with a current detection unit, and the operating current value of the AC fan is detected in real time or regularly through the current detection unit. Different operating current values reflect different working states of the AC motor, and the operating current value is directly detected. The method of detecting the working status of the AC fan is more accurate and timely, and there is no lag.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to a control circuit of an AC fan, an air conditioner and a method for detecting the state of the AC fan, and a storage medium. Background technique [0002] Whether the status of the AC fan of the air conditioner is abnormal is generally determined by detecting whether the temperature of the condenser is abnormal. Using this indirect method to detect the status of the fan is not accurate enough and has hysteresis. [0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not mean that the above content is admitted as prior art. Contents of the invention [0004] The main purpose of the present invention is to provide a control circuit of an AC fan, an air conditioner and a method for detecting the state of the AC fan and a storage medium thereof, aiming at solving the technical problems of inaccurate dete...
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IPC IPC(8): F24F11/38F24F11/88G01R19/165
CPCF24F11/38F24F11/88G01R19/16595
Inventor 霍兆镜
Owner GUANGZHOU HUALING REFRIGERATION EQUIP