An impeller for a fan and a fan and a range hood using the impeller
A technology of impeller and fan, which is applied to the parts, application, and removal of oil fume of the elastic fluid pumping device. It can solve the problems of insufficient negative pressure, oil fume escape, and separation that cannot meet the actual needs, so as to improve the separation of oil and fat. The effect of increasing the air volume, increasing the air volume, and changing the natural frequency
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[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0029] see figure 1 and figure 2 , an impeller for a fan, including a stationary impeller 1, a moving impeller 2, and a motion mechanism 3 for driving the moving impeller 2 to move. The impeller has a central axis X. The fan is a centrifugal fan.
[0030] The stationary impeller 1 includes a disk 11 and at least two first blades 12, the first blades 12 are arranged at intervals along the circumference of the disk 11, one end of the first blade 12 is connected and fixed with the disk 11, and the other end is used for connecting with the moving disk 11. The impeller 2 is connected. The disc 11 is perpendicular to the central axis X, and the first blades 12 are arranged around the central axis X and extend in the same direction as the central axis X.
[0031] The moving impeller 2 comprises at least two second blades 21, a first living hing...
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