Patent ID: 8378673

Claim:
A derailleur cable detecting assembly for an electric-auxiliary bicycle having a frame, a derailleur cable mounted on the frame with a cable sheath and a cable wire movably mounted in the cable sheath, a controller mounted on the frame, a battery container mounted on the frame and electrically connected to the controller and a motor mounted on the frame and electrically connected to the battery container, and the derailleur cable detecting assembly comprising: a body adapted to mount securely on the frame and adapted to connect to the derailleur cable and having a casing adapted to mount securely on the frame and having a top; a bottom adapted to mount on the frame; two opposite sides; an opening formed through the top of the casing; a chamber formed in the casing and communicating with the opening of the casing; and a through hole formed through one of the opposite sides of the casing and communicating with the chamber of the casing; and a cover detachably mounted on the casing to allow the cable wire of the derailleur cable to movably extend into the body between the casing and the cover and having a shape corresponding to the casing; and two sidewalls; and a detecting device mounted in the body, adapted to connect to the derailleur cable and having a circuit board mounted securely in the chamber of the casing, facing the cable wire of the derailleur cable and having a bottom; a top facing the cable wire of the derailleur cable; an electric wire electrically connected to the circuit board and extending out of the casing via the through hole to electrically connect to the controller; and multiple magnetic sensors mounted securely on the top of the circuit board at intervals; and a magnetic element mounted moveably in the body between the casing and the cover, adapted to be connected securely to the cable wire of the derailleur cable and facing the top of the circuit board on which the magnetic sensors are mounted.