Design method for saving axial space of motor

The invention discloses a design method for saving axial space of a motor, and belongs to the field of motors. The method comprises the following steps of reserving 5 mm electrical space in front of and behind a coil winding, and determining the internal space of the motor; designing a connecting support to link a rotor with a motor shaft; designing a retaining device to be hidden in the connecting support; designing a first bearing chamber for mounting a front bearing on a front end cover, and designing a second bearing chamber for mounting a rear bearing on a rear end cover; designing a first annular cavity and a second annular cavity at the front end and the rear end in the connecting support respectively, and hiding the front bearing, the rear bearing, a sealing device and a feedback device in a first annular cavity and a second annular cavity in the connecting support respectively. The method provided by the invention is suitable for the motor under the conditions of limited installation space in the ind