Motor device

A motor device comprising:

• a bracket, comprising a first end, a second end, a communication aperture and a slot, wherein the first end and the second end are opposite to each other, and the communication aperture passes through the first end and the second end, and the slot is disposed at the first end;
• a connection assembly, comprising a first connector and a second connector, wherein the first connector is disposed in the slot, and the first connector comprises an accommodation opening, and the second connector is inserted into the accommodation opening, wherein the first connector comprises a first connection element and the second connector comprises a second connection element;
• a sensor, disposed at the first end of the bracket, and comprising a first circuit board electrically connected to the first connector through the first connection element;
• a stator, connected to the second end of the bracket, wherein the stator comprises a second circuit board, the second connection element passes through the bracket, and the second circuit board is electrically connected to the second connector through the second connection element;
• and
• a rotor, passing through the stator, wherein an end portion of the rotor passes through the communication aperture of the bracket, and the end portion of the rotor spatially corresponds to the sensor.