Fan braking structure

A fan braking structure, comprising:

• a fan including a frame, a fan impeller and a stator;
• the frame including an upright bearing cup, and the stator being externally fitted around the bearing cup to be located corresponding to the fan impeller;
• and the fan impeller including a rotating shaft vertically received in the bearing cup, an end of the rotating shaft being pivotally received in the bearing cup, and another end of the rotating shaft being a free end having a groove formed thereat;
• a braking structure including a regenerative module and a shell located at a lower part of the bearing cup;
• the shell being internally provided with a brake plate and an electromagnet;
• the brake plate being provided at one side with a protruded brake pin and at another opposite side with a magnetic member;
• and the regenerative module including an electrical connection section and a power storage element, and the electrical connection section being electrically connected to the fan;
• and
• an elastic element being disposed between and pressed against a top of the shell and the brake plate.