FAN MODULE

摘要

A fan module including a first fan, a second fan and a actuator is provided. The first fan has a first pivot portion and a plurality of first fan blades. Each first fan blade has a first blade face. The second fan has a second pivot portion and a plurality of second fan blades corresponding to the first fan blades. Each second fan blade has a second blade face. The second pivot portion is slidably disposed at a containing cavity of the first pivot portion. The actuator is adapted to drive the first fan to rotate. The first fan is adapted to drive the second fan to rotate. When the second pivot portion protrudes out of the containing cavity, a part of each of the second blade faces does not overlap with the corresponding first blade face along a direction perpendicular to the corresponding first blade face.

主权项

1. A fan module for an electronic device, comprising:
a first fan, having a first pivot portion and a plurality of first fan blades, wherein each of the first fan blades is connected to the first pivot portion and has a first blade face, and the first pivot portion has a first containing cavity; a second fan, having a second pivot portion and a plurality of second fan blades, wherein each of the second fan blades is connected to the second pivot portion and has a second blade face, the second pivot portion is slidably disposed in the first containing cavity along an axis, and the second fan blades respectively correspond to the first fan blades; and an actuator, coupled to the first pivot portion for driving the first fan to rotate around the axis, wherein the first fan drives the second fan to rotate around the axis, wherein when the second pivot portion slides to a first position to protrude out of the first containing cavity, a portion of each of the second blade faces does not overlap with a corresponding one of the first blade faces in a direction perpendicular to the corresponding first blade face.