| 摘要 |
A fan device for high torque output has two base plates, multiple fans, and a spindle. The base plates are mounted parallel to each other. The fans are mounted between the base plates, and each fan has an inner side, an outer side, and an inflection point. The spindle is connected with one of the base plates and is located at a middle position of the base plate. A connecting line that connects the inflection point and the spindle is out of an area defined between a connecting line that connects the spindle and the inner side and a connecting line that connects the spindle and the outer side when the inflection point, the inner side, and the outer side are located at the same horizontal plane. Therefore, each fan has a large frontal area to be pushed by fluid. |
| 主权项 |
1. A fan device comprising:
two base plates mounted parallel to each other; multiple fans circularly mounted between the base plates and with intervals between the fans, wherein each fan is elongated and has
a longitudinal direction defined from one of the base plates to the other of the base plates;an outer side formed on the fan along the longitudinal direction;an inner side formed on the fan along the longitudinal direction; anda driven portion formed between the outer side and the inner side and having an inflection point at a horizontal plane across the fan, wherein a curved length between the inflection point and the outer side is larger than a curved length between the inflection point and the inner side; a spindle mounted on one of the base plates, located in a middle position of said one of the base plates that is mounted with the spindle, being nearer to the inner sides of the fans than to the outer sides of the fans, and having a longitudinal direction parallel with the longitudinal directions of the fans; wherein a connecting line that connects the inflection point and the spindle is located out of an area defined between a connecting line that connects the outer side and the spindle and a connecting line that connects the inner side and the spindle when the inflection point, the inner side, and the outer side are located at the horizontal plane; a vane module is connected with the spindle and has
a vane base connected with the spindle and having a radial direction;multiple surrounding vanes connected with the vane base and surrounding the vane base at intervals and each surrounding vane being elongated, arc-shaped, connected with the vane base by a bottom end of the surrounding vane, and having
a longitudinal direction;a surrounding first side formed on the surrounding vane along the longitudinal direction of the surrounding vane;a surrounding second side formed on the surrounding vane along the longitudinal direction of the surrounding vane;a surrounding driven portion formed on the surrounding vane between the surrounding first side and the surrounding second side;multiple inclined vanes connected with the vane base at intervals, and each inclined vane being elongated, arc-shaped, connected with the vane base by a bottom end of the inclined vane, and having
a longitudinal direction;an inclined angle formed between the radial direction of the vane base and the longitudinal direction of the inclined vane, and formed between the longitudinal direction of the inclined vane and the longitudinal direction of the surrounding vane;an inclined first side formed on the inclined vane along the longitudinal direction of the inclined vane;an inclined second side formed on the inclined vane along the longitudinal direction of the inclined vane;an inclined driven portion formed on the inclined vane between the inclined first side and the inclined second side. |
