Step-less speed regulating oscillating fan

Abstract

The invention is about a step-less speed regulating oscillating fan, relates to the technical field of fans, and includes a fan body and a base; the fan body is installed on the base, a motor is fixedly installed on the fan body, and blades are fixedly installed on an output shaft of the motor; a battery is installed inside the base, a PCB main board is installed inside the base, an encoder is installed on the base and is used to control the revolution speed of the fan, a rotary knob is fixedly installed on a rotary part of the encoder, and speed control of the fan can be realized by gently turning the rotary knob and using the encoder to control the output revolution speed of the motor, limitation of gear positions and mechanical rotary knob are avoided, and the purpose of saving efforts can be realized.

1 . A step-less speed regulating oscillating fan comprises a fan body ( 1 ) and a base ( 3 ), wherein the fan body ( 1 ) is installed on the base ( 3 );
 a first motor ( 2 ) is fixedly installed on the fan body ( 1 ), and blades are fixedly installed on an output shaft of the first motor ( 2 );   a battery ( 5 ) is installed inside the base ( 3 ), a PCB main board ( 4 ) is installed inside the base ( 3 ), an encoder ( 8 ) is installed on the base ( 3 ) and is used to control the revolution speed of the first fan ( 2 ), a rotary knob ( 7 ) is fixedly installed on a rotary part of the encoder ( 8 ), and the rotary knob ( 7 ) is located on an outer side of the base ( 3 );   wherein a pressing switch is positioned on a rotary center of the rotary knob ( 7 ) and a press of the pressing switch activates the second motor ( 9 ) to drive the fan body ( 1 ) to oscillate.   
     
     
         2 . The step-less speed regulating oscillating fan according to  claim 1 , wherein a second motor ( 9 ) is installed inside the base ( 3 ), and the output shaft of the second motor ( 9 ) is fixedly connected with the fan body ( 1 ). 
     
     
         3 . The step-less speed regulating oscillating fan according to  claim 2 , wherein an installing port is formed in an upper end of the base, a bearing is installed inside the installing port, and an installing post is fixedly installed at the bottom of the fan body ( 1 ), wherein the installing post is installed on an inner ring of the bearing, and is fixedly connected with an output end of the second motor ( 9 ). 
     
     
         4 . (canceled) 
     
     
         5 . The step-less speed regulating oscillating fan according to  claim 4 , wherein a bottom cover ( 6 ) is located at the bottom of the base ( 3 ). 
     
     
         6 . The step-less speed regulating oscillating fan according to  claim 3 , wherein a base wire cover ( 31 ) is positioned at the installing port.