Combined fixed fan for disc-type motor

A combined fixed fan for a disc-type motor serving as a component of the disc-type motor, wherein a motor fan fixing frame comprises a front rotor frame (19), a front fixing sheet (1), a fan (2), a rear fixing sheet (3) and a rear rotor frame (20) in sequence in an axial direction:

• the front rotor frame (19) and the rear rotor frame (20) are circular sheets with a center fixed with a disc-type motor rotating shaft, and are used for annularly arranging and mounting permanent magnets on inside surfaces of the same respectively;
• the front fixing sheet (1) and the rear fixing sheet (3) are of the same shape, are both circular sheets with a central hole (10), and are provided with magnet fixing holes (4) in a circle corresponding to positions of the permanent magnets, a plurality of outer assembling holes (7) are arranged around an inner edge, a plurality of rotor fixing holes (5) are arranged around an outer edge, the rotor fixing holes (5) of the front fixing sheet (1) are fixedly connected with the front rotor frame (19), and the rotor fixing holes (5) of the rear fixing sheet (3) are fixedly connected with the rear rotor frame (20);
• the fan (2) is integrally provided with an annular column-shaped spacing frame (11), a center of the fan (2) is axially provided with a shaft hole (15) for the motor rotating shaft to pass through, and a plurality of fan blades (13) arranged around the shaft hole (15) are fixed in the spacing frame (11);
• and a side surface of the spacing frame is provided with a plurality of air outlet channels (16) evenly arranged in a circle, and an end surface of the spacing frame is provided with a plurality of inner positioning holes (12) evenly arranged in a circle;
• and
• the outer assembling holes (7) of the front fixing sheet (1) and the rear fixing sheet (3) are matched and aligned with the inner positioning holes (12) of the fan (2) in number and position, and the outer assembling holes are connected with the inner positioning holes as a whole by fasteners, and the permanent magnets arranged on the front rotor frame (19) and the rear rotor frame (20) are axially aligned.