| 摘要 |
A motor fan system having a drive motor (M) and a plurality of fans (20a-23a). The motor fan system further includes a power transmission pulley (30) and a plurality of drive pulleys (20b-23b). The drive pulleys (20b-23b) are rotated by the rotational force of the drive motor (M) and rotate their respective fans (20a-23a). The power transmission pulley (30) cooperates with a rotating shaft (Ma) of the drive motor (M) by a power transmission belt (31) while all the drive belts (32) cooperate with each other by a drive belt (32) wrapped about them. The motor fan system thus rotates, using the rotational force of the drive motor (M), the plurality of fans (20a-23a) having different current directions, thus to generate the currents in different directions. The currents generated by the fans return to the system so as to be recirculated. The currents of the fans are thus always refreshed. With the above circulation of the currents of fans, the heat of the motor is effectively cooled. Since the drive motor (M) is sufficiently spaced apart from the fans (20a-23a), the heat of the motor is not directly applied to the fans, thus to overcome the problem of generation of hot currents. |
