TWM509855U - Fan blade - Google Patents

Description

Fan blades

The present invention relates to the field of fan technology, and in particular to a fan blade that can reduce blade vibration when the fan is in operation.

As shown in FIG. 1 and FIG. 2, the fan blade 10 includes a motor connector 11 and a plurality of blades 12 spaced apart from the peripheral wall of the motor connector 11. The blade 12 has a smooth surface structure. And having a certain extension length, the blade 12 includes a connecting edge 13, a circular arc edge 14 and a wind edge 15 and an leeward edge 16 respectively connecting the connecting edge 13 and the circular arc edge 14, the connection The edge 13 is connected to the periphery of the motor connecting seat 11, and the circular arc edge 14 has an arc shape, and the wind cutting edge 15 and the leeward side 16 are outwardly curved from the connecting edge 13 to extend to the circular arc edge 14 to make the blade 12 The arc edge 14 is larger than the connecting edge 13. When the fan blade 10 rotates, the air-cut edge 15 of the blade 12 generates a wind-cutting effect with the air. At this time, the blade 12 generates vibration noise from the circular arc edge 14 in order to effectively reduce Vibration noise can be overcome by increasing the thickness of the blade, but its weight increases, and the motor needs to increase the power output, so that the cost increases, thus affecting the economic benefits of the fan blade, and the need for improvement, in view of this, the creation People are concentrating on research and in-depth thinking After several trials and developments, a fan blade was finally created.

The purpose of this creation is to provide a fan blade which can effectively reduce vibration noise while reducing production cost and creating high economic efficiency.

The purpose of this creation is achieved by the following technical means: a fan blade, package a motor connecting seat and a plurality of blades spaced apart from each other on a peripheral wall of the motor connecting seat; wherein the blade comprises a connecting edge, a circular arc edge, and a cutting edge connecting the connecting edge and the arc edge respectively And the leeward side, the connecting edge is connected to the peripheral wall of the motor connecting seat in a concave arc shape, and the cutting edge and the leeward edge are gradually extended from the connecting edge to the arc edge to form a concave arc shape. a wind surface, and the cutting edge of the motor connecting seat is lower than the connecting arc end, and the leeward side connecting the motor connecting seat peripheral wall end is higher than the connecting arc side end, when the fan blade is running, passing through the blade The small inner large and concave arc shape cut surface structure design can effectively reduce the rotating vibration noise.

Benefits of implementing this creation: 1. Increase the structural strength of the blade to effectively reduce the vibration and noise of the rotation. 2. Moderately reduce the thickness of the blade and reduce the material requirements of the blade. 3. And reduce the production cost of fan blades, can create higher economic benefits.

Conventional symbols:

10‧‧‧Fan blades

11‧‧‧Motor connector

12‧‧‧ leaves

13‧‧‧Connecting edge

14‧‧‧ arc edge

15‧‧‧ cut the wind side

16‧‧‧ leeward side

This creative symbol:

20‧‧‧fan blades

21‧‧‧Motor connector

22‧‧‧ blades

23‧‧‧Connecting edge

24‧‧‧ arc edge

25‧‧‧ cut edge

26‧‧‧ leeward side

27‧‧‧ cut wind face

30‧‧‧Fan

Figure 1 is a schematic view of the appearance of a conventional fan blade.

2 is a front view of a conventional fan blade.

Figure 3 is a schematic view of the appearance of the fan blade of the present invention.

4 is a schematic view showing the appearance of another angle of FIG. 3.

Figure 5 is a front view of Figure 3.

Figure 6 is a side elevational view of Figure 3.

FIG. 7 is a schematic diagram of a state diagram of the creation use.

The exemplary embodiments presenting the features and advantages of the present invention will be described in detail in the following description, but the present invention can be varied in various aspects without departing from the scope of the present invention. It is used for illustrative purposes, not to limit the creation of this novel.

In order to enable your review committee to have a better understanding and understanding of the purpose, characteristics and efficacy of this creation, please refer to the following [Details of the drawings] for details.

A preferred embodiment of a fan blade is shown in FIGS. 3 to 6. The fan blade 20 includes a motor connector 21 and a plurality of blades 22 spaced apart from the peripheral wall of the motor connector 21. The blade 22 includes There is a connecting edge 23, an arc edge 24, and a wind edge 25 and a leeward edge 26 respectively connecting the connecting edge 23 and the arc edge 24, and the connecting edge 23 is connected to the motor connector 21 in a concave arc shape. The peripheral wall, the cut air edge 25 and the leeward side 26 are tapered from the connecting edge 23 to an arcuate edge 24 to form a concave arc-shaped cut surface 27.

Referring to FIG. 5, the air-cut edge 25 is connected to the peripheral end of the motor connecting seat 21, which is lower than the connecting arc-side 24 end. The leeward side 26 is connected to the peripheral end of the motor connecting seat 21 and is higher than the connecting arc-side 24 end.

Referring to FIG. 6 and FIG. 7 , the fan blades 20 are disposed between the front and rear covers of the fan 30 , and the present invention is designed by the small inner and outer concave curved wind surface 27 of the blade 22 . When the fan blade 20 rotates, the rotation noise of the blade 22 can be effectively reduced, and the production cost can be reduced, thereby creating high economic efficiency.

In summary, the embodiments and the drawings are intended to be a preferred embodiment of the present invention. However, those skilled in the art, without departing from the novel description and patent application scope of the present invention, The implementation of the equivalent structural changes under the purpose and efficacy shall be regarded as the equivalent implementation of the scope of patent application in this case.

20‧‧‧fan blades

21‧‧‧Motor connector

22‧‧‧ blades

23‧‧‧Connecting edge

24‧‧‧ arc edge

25‧‧‧ cut edge

26‧‧‧ leeward side

27‧‧‧ cut wind face

Claims (1)

A fan blade includes a motor connector and a plurality of blades spaced apart from a peripheral wall of the motor connector; wherein the blade includes a connecting edge, a circular arc edge, and the connecting edge and the arc edge respectively The cutting edge and the leeward side are connected to the peripheral wall of the motor connecting seat in a concave arc shape, and the cutting edge and the leeward side are gradually curved from the connecting edge to the arc side to form a concave shape. The curved shape cuts the wind surface, and the cut air edge is connected to the peripheral end of the motor connecting seat, and the peripheral wall end of the motor connecting seat is higher than the connecting arc end.