Direction control device for a ceiling fan

Abstract

A direction control device for a ceiling fan has a direction control circuit arranged in a switch box of the ceiling fan and a remote receiver placed in a place exterior of the ceiling fan. Conducting wires are electrically connected between the direction control circuit and a set of connectors retained inside the switch box. With the aforementioned arrangement, control signals received by the remote control are sent to the direction control circuit through said wires and connectors to determine the rotation direction of the ceiling fan. Further, since the direction control circuit is placed inside the switch box of the ceiling fan, the installing process of the direction control device is simple.

1 . A direction control device for a ceiling fan having a canopy ( 13 ), a body ( 10 ) with a motor retained therein, a hanger rod ( 12 ) suspended from said canopy ( 13 ) and extended through the motor and a switch box ( 14 ) secured to a bottom of the body ( 10 ), the direction control device comprising: 
 a direction control circuit ( 20 ) arranged in the switch box ( 14 ) of the ceiling fan;    a remote receiver ( 30 ) arranged in an exterior position away from the ceiling fan and electrically connected to the direction control circuit ( 20 ); and    wherein said remote receiver ( 30 ) is connected with conducting wires ( 200 ) that are electrically connected to the direction control circuit ( 20 ) by a set of connectors ( 21 ,  22 ) via the canopy ( 13 ), the hanger rod ( 12 ) and the body ( 10 ).    
   
   
       2 . The direction control device as claimed in  claim 1 , wherein the set of connectors ( 21 ,  22 ) is composed of a female connector ( 22 ) electrically connected to the direction control circuit ( 20 ) and a male connector ( 21 ) electrically connected with the conducting wires ( 200 ) and connection lines of the motor, wherein the male and female connectors ( 21 ,  22 ) are correspondingly connected together whereby the direction control circuit ( 20 ) is electrically connected to the remote receiver ( 30 ).  
   
   
       3 . The direction control device as claimed in  claim 1 , wherein the conducting wires ( 200 ) are indoor wires pre-arranged inside a building.  
   
   
       4 . The direction control device as claimed in  claim 2 , wherein the conducting wires ( 200 ) are indoor wires pre-arranged inside a building.  
   
   
       5 . The direction control device as claimed in  claim 3 , wherein the direction control circuit ( 20 ) comprises: 
 a power supply unit ( 23 ) for supplying power to the direction control circuit ( 20 ) via a female connector ( 22 );    a detection circuit ( 24 ) for sensing signals received by the remote receiver ( 20 );    a microprocessor ( 25 ) connected to the detection circuit ( 24 ) for receiving control signals from the detection circuit ( 24 ); and    a relay drive circuit ( 26 ) controlled by the microprocessor ( 25 ), wherein the relay drive circuit ( 26 ) controls two relay switches ( 260 ) connected to coils of the motor and input power via an activation capacitor ( 27 ), the male and female connectors ( 21 ,  22 ) control the direction of the current flowing in the coils of the motor.    
   
   
       6 . The direction control device as claimed in  claim 4 , wherein the direction control circuit ( 20 ) comprises: 
 a power supply unit ( 23 ) for supplying power to the direction control circuit ( 20 ) via the female connector ( 22 );    a detection circuit ( 24 ) for sensing signals received by the remote receiver ( 20 );    a microprocessor ( 25 ) connected to the detection circuit ( 24 ) for receiving control signals from the detection circuit ( 24 ); and    a relay drive circuit ( 26 ) controlled by the microprocessor ( 25 ), wherein the relay drive circuit ( 26 ) controls two relay switches ( 260 ) connected to coils of the motor and input power via an activation capacitor ( 27 ), the male and female connectors ( 21 ,  22 ) control the direction of the current flowing in the coils of the motor.