Fan assembly

Abstract

A fan assembly includes a motor, a frame body, and a fan blade. The frame body has an accommodating space and a first opening. The motor is located in the accommodating space. The fan blade is pivotally connected to the motor. The fan blade is fixed to and rotates with a shaft extending along a direction. The fan blade includes a wheel hub, a plurality of first blades, and a plurality of second blades. A first thickness of the first blades is greater than a second thickness of the second blades, and the wheel hub and the first blades are exposed in the first opening. A top surface of the first blades and a top surface of the frame body are coplanar.

1 . A fan assembly, comprising:
 a motor;   a frame body having an accommodating space, a first opening, and a second opening, and the motor being located in the accommodating space; and   a fan blade located in the accommodating space, the fan blade being pivotally connected to the motor, wherein the fan blade is fixed to and rotates with a shaft extending along a direction, wherein the fan blade comprises:
 a wheel hub having the shaft at a center of the wheel hub, and the shaft being pivotally connected to the motor; 
 a plurality of first blades surrounding the wheel hub and extending radially outward from the wheel hub as a center of the fan blade and corresponding to the first opening, wherein an end of each of the first blades is connected to and in contact with the wheel hub, and the first blades have a first thickness in the direction; and 
 a plurality of second blades surrounding the first blades, wherein an end of each of the second blades is connected to the other end of the corresponding first blades, and the second blades have a second thickness in the direction, 
   wherein the first thickness of the first blades is greater than the second thickness of the second blades, wherein the wheel hub and the first blades are exposed in the first opening, and wherein a top surface of the first blades and a top surface of the frame body are coplanar,   wherein the fan blade further comprises a disk body, and an uppermost portion of a top surface of the disk body is leveled with a top surface of the wheel hub.   
     
     
         2 . The fan assembly of  claim 1 , wherein the first blades protrude from the disk body along the direction, and the second blades protrude from the disk body along the direction. 
     
     
         3 . The fan assembly of  claim 1 , wherein the first blades are located in an inner ring of the disk body and the second blades are located in an outer ring of the disk body. 
     
     
         4 . The fan assembly of  claim 1 , wherein the disk body, the first blades and the second blades are formed integrally. 
     
     
         5 . The fan assembly of  claim 1 , wherein the disk body has a top surface and a bottom surface, the first blades have a top surface and a bottom surface, and the second blades have a top surface and a bottom surface. 
     
     
         6 . The fan assembly of  claim 5 , wherein the first thickness of the first blades is a distance from the bottom surface of the first blades to the top surface of the first blades, and the second thickness of the second blades is a distance from the bottom surface of the second blades to the top surface of the second blades. 
     
     
         7 . The fan assembly of  claim 5 , wherein the top surface of the first blades and the top surface of the second blades are higher than the top surface of the disk body, and the bottom surface of the first blades and the bottom surface of the second blades are lower than the bottom surface of the disk body. 
     
     
         8 . The fan assembly of  claim 5 , wherein the bottom surface of the first blades and the bottom surface of the second blades are coplanar. 
     
     
         9 . The fan assembly of  claim 1 , wherein the frame body comprises a bottom plate, a top plate, and a side plate, wherein the accommodating space is jointly defined by the bottom plate, the top plate, and the side plate, wherein the top plate has a top surface, and wherein the first opening is located on the top plate. 
     
     
         10 . The fan assembly of  claim 1 , wherein the first thickness of the first blades is less than or equal to 2 millimeters. 
     
     
         11 . A fan assembly, comprising:
 a motor;   a frame body having an accommodating space and a first opening, and the motor being located in the accommodating space; and   a fan blade located in the accommodating space, the fan blade being pivotally connected to the motor, wherein the fan blade is fixed to and rotates with a shaft extending along a direction, wherein the fan blade comprises:
 a wheel hub having the shaft at a center of the wheel hub, and the shaft being pivotally connected to the motor; 
 a plurality of first blades surrounding the wheel hub and extending radially outward from the wheel hub as a center of the fan blade, wherein an end of each of the first blades is connected to and in contact with the wheel hub, and the first blades have a first thickness in the direction; and 
 a plurality of second blades surrounding the first blades, wherein an end of each of the second blades is connected to the other end of the corresponding first blades, and the second blades have a second thickness in the direction, 
   wherein the first thickness of the first blades is greater than the second thickness of the second blades, wherein the wheel hub and the first blades pass through the first opening, and wherein a top surface of the first blades and a top surface of the frame body are coplanar,   wherein the fan blade further comprises a disk body, and an uppermost portion of a top surface of the disk body is leveled with a top surface of the wheel hub.   
     
     
         12 . The fan assembly of  claim 11 , wherein the first blades protrude from the disk body along the direction, and the second blades protrude from the disk body along the direction. 
     
     
         13 . The fan assembly of  claim 11 , wherein the first blades are located in an inner ring of the disk body and the second blades are located in an outer ring of the disk body. 
     
     
         14 . The fan assembly of  claim 11 , wherein the disk body, the first blades and the second blades are formed integrally. 
     
     
         15 . The fan assembly of  claim 11 , wherein the disk body has a top surface and a bottom surface, the first blades have a top surface and a bottom surface, and the second blades have a top surface and a bottom surface. 
     
     
         16 . The fan assembly of  claim 15 , wherein the first thickness of the first blades is a distance from the bottom surface of the first blades to the top surface of the first blades, and the second thickness of the second blades is a distance from the bottom surface of the second blades to the top surface of the second blades. 
     
     
         17 . The fan assembly of  claim 15 , wherein the top surface of the first blades and the top surface of the second blades are higher than the top surface of the disk body, and the bottom surface of the first blades and the bottom surface of the second blades are lower than the bottom surface of the disk body. 
     
     
         18 . The fan assembly of  claim 15 , wherein the bottom surface of the first blades and the bottom surface of the second blades are coplanar. 
     
     
         19 . The fan assembly of  claim 11 , wherein the frame body comprises a bottom plate, a top plate, and a side plate, wherein the accommodating space is jointly defined by the bottom plate, the top plate, and the side plate, wherein the top plate has a top surface, and wherein the first opening is located on the top plate. 
     
     
         20 . The fan assembly of  claim 11 , wherein the first thickness of the first blades is less than or equal to 2 millimeters.