Metal fan wheel, fan and electronic product
A technology of electronic products and fan wheels, which is applied in the direction of electric digital data processing, instruments, liquid fuel engines, etc., can solve the problems of fan noise, etc., and achieve the effects of reducing noise, uniform distribution, and solving energy concentration
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Embodiment 1
[0036] In the present application, the metal blade 2 includes a first metal blade 21 and a second metal blade 22 with the same structure and different lengths. The fan wheel of the present application includes a hub 1, a metal fan blade 2 and a connecting ring 3. The proximal end of the metal fan blade 2 is connected to the hub, and the distal end is connected to the connecting ring 3 to ensure the overall structural stability of the hub.
[0037] Specifically, the metal fan blade 2 includes a first metal blade 21 and a second metal blade 22 with different lengths. The first metal blade 21 and the second metal blade 22 are alternately distributed on the outer circumference of the hub 1. The first metal blade 21 and The intervals between the second metal blades 22 are the same. Through the design of the first metal blade 21 and the second metal blade 22 with different lengths, the swept area of the adjacent blades is different, and the fan can not only maintain balance during...
Embodiment 2
[0043] The difference between this embodiment and Embodiment 1 is that the metal blades of this embodiment include metal blades with three lengths. like Figure 4 As shown, the metal fan blade 2 includes a first metal blade 21 , a second metal blade 22 and a third metal blade 23 which have the same structure and increase in length in sequence. The proximal ends of the first metal blade 21 , the second metal blade 22 , and the third metal blade 23 are connected with the hub 1 , and the distal ends are connected with the connecting ring 3 .
[0044] By adopting the design of the first metal blade 21, the second metal blade 22 and the third metal blade 23, the fan can not only maintain a balance during operation, but also avoid the same frequency of blade sweeping vibration, solve the energy concentration at a single frequency, and greatly Reduced noise from fan operation.
[0045] Similarly, in this embodiment, the middle parts of the ends of the windward surfaces of the first...
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