Stepless regulation fan
OwnerXueping Zhuinventor
Life of this patent
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Abstract
A stepless regulation fan includes a fan main body, a main control circuit, a stepless regulation element electrically connected with the main control circuit and a first driving circuit. The fan main body is equipped with a first motor and fan blades connected to the first motor. The control circuit board integrates the main control circuit, a stepless regulation element electrically connected with the main control circuit and a first driving circuit. The stepless regulation element is configured for user operation. The first driving circuit is electrically connected to the first motor. The stepless regulation element includes an encoder switch, the encoder switch includes a first pin and a second pin, the first pin and the second pin are electrically connected with the main control circuit.
Claims19
A stepless regulation fan, comprising a fan main body, a main control circuit, a stepless regulation element and a first driving circuit, wherein the fan main body comprises a first motor and fan blades connected to the first motor, the main control circuit is electrically connected with the stepless regulation element and the first driving circuit respectively;
- the first driving circuit is electrically connected to the first motor;
- the stepless regulation element comprises an encoder switch, the encoder switch comprises a first pin and a second pin, the first pin and the second pin are electrically connected with the main control circuit;
- when the encoder switch is operated, the first pin or the second pin feeds back a first electrical signal or a second electrical signal to the main control circuit, the main control circuit controls the first driving circuit to output a rotating speed control signal according to the first electrical signal or the second electrical signal, thereby controlling the continuous change of the driving power output by the first motor;
- wherein the main control circuit controls the first driving circuit to output a first rotating speed control signal according to the first electrical signal, thereby controlling the driving power output by the first motor to be continuously increased to increase the rotational speed of the fan blades;
- the main control circuit controls the first driving circuit to output a second rotating speed control signal according to the second electrical signal, thereby controlling the driving power output by the first motor to be continuously decreased to decrease the rotational speed of the fan blades;
- wherein the encoder switch further comprises a fifth pin, the fifth pin is electrically connected with the main control circuit, the operation being executed by the encoder switch further comprises a turn-on operation and a turn-off operation,
- when the encoder switch is configured to execute the turn-on operation, the fifth pin outputs a turn-on signal, whereby the main control circuit controls the first motor to start working according to the turn-on signal thereby driving the fan blades to rotate;
- when the encoder switch is configured to execute the turn-off operation, the fifth pin outputs a turn-off signal, whereby the main control circuit controls the first motor to stop working according to the turn-off signal thereby driving the fan blades to stop rotating.
A stepless regulation fan, comprising a fan main body, a main control circuit, a stepless regulation element and a first driving circuit, wherein the fan main body comprises a first motor and fan blades connected to the first motor, the main control circuit is electrically connected with the stepless regulation element and the first driving circuit respectively;
- the first driving circuit is electrically connected to the first motor;
- the stepless regulation element comprises an encoder switch, the encoder switch comprises a first pin and a second pin, the first pin and the second pin are electrically connected with the main control circuit;
- when the encoder switch is operated, the first pin or the second pin feeds back a first electrical signal or a second electrical signal to the main control circuit, the main control circuit controls the first driving circuit to output a rotating speed control signal according to the first electrical signal or the second electrical signal, thereby controlling the continuous change of the driving power output by the first motor;
- wherein the encoder switch further comprises an encoder main body, the encoder main body comprises a first end, a second end, a third end and a fourth end, the first end is connected with the first pin, the first end is electrically connected with an operating voltage end through a first resistor, the second end is connected with the second pin, the second end is electrically connected with the operating voltage end through a second resistor, the first pin is grounded through a first capacitor, the second pin is grounded through a second capacitor, a third resistor is electrically connected between the first end and the first pin, and a fourth resistor is electrically connection between the second end and the second pin.
Dependencies are inferred from the claim text.