Electrical control apparatus of internal speed change device of wheel hub for gear switching

An electrical control apparatus for gear switching, comprising:

• a control base (1) and a lateral cover (5);
• a circuit board (2), a motor (3) and a driving ring (4) being assembled in an interior receiving space between the control base (1) and the lateral cover (5);
• the circuit board (2) having at least one signal transmission contact joint (21);
• the motor (3) having a motor gear (31);
• the driving ring (4) having at least one first circuit (41);
• the driving ring (4) having a driving ring gear (42) engaged to the motor gear (31);
• and
• wherein number of the at least one signal transmission contact joint (21) is equal to that of the at least one first circuit (41) of the driving ring (4);
• the circuit board (2) is used to receive gear switching signals and to drive the motor (3) so that the motor gear (31) of the motor (3) drives the driving ring (4) to rotate;
• rotation of the driving ring (4) drives the at least one first circuit (41) to rotate with a rotation angle and be positioned to an object position.