CN112696379A

CN112696379A - Cicada wing type high-strength fan blade

Info

Publication number: CN112696379A
Application number: CN202011481428.4A
Authority: CN
Inventors: 何克锋
Original assignee: Kunshan Ping Tai Electronic Co ltd
Current assignee: Kunshan Ping Tai Electronic Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-04-23

Abstract

The invention relates to a cicada wing type high-strength fan blade which is applied to the technical field of radiators and solves the technical problem of low air volume of the existing fan, and the cicada wing type high-strength fan blade comprises a connecting body and blades which are circumferentially and uniformly distributed on the connecting body, wherein at least one reinforcing ring made of metal material is fixed on each blade; the reinforcing ring passes through the through groove, the lateral wall in through groove limits the radial movement of reinforcing ring along the connector, the stopper limits the axial displacement of reinforcing ring along the connector and rotates around the axis of connector. The invention has the effect of improving the air suction quantity of the fan blades and ensuring that the fan blades cannot be broken.

Description

Cicada wing type high-strength fan blade

Technical Field

The invention relates to the technical field of radiators, in particular to a cicada wing type high-strength fan blade.

Background

With the development of science and technology, intellectualization and informatization are the trend of modern development, and both the intellectualization and the informatization need to depend on a server. The server is a high-performance computer which provides various services for the client computer, the high performance of the server is mainly reflected in the aspects of high-speed computing capability, long-time reliable operation, strong external data throughput capability and the like, and the server generates heat in the data computing process, so that a fan is needed for heat dissipation.

As shown in fig. 1, a fan blade includes a connector 1 at the center and blades 2 uniformly distributed on the connector 1 in the circumferential direction, and when the fan blade rotates, air is agitated to make the air flow along a specific curved surface of the blade in a single direction, thereby forming wind. When the fan blades rotate at the same rotating speed, the more the number of the blades on the fan blades is, the larger the air volume is, and the better the heat dissipation effect is. When the number of the blades is more, the blades need to be thinned, and the thinner the blades are, the weaker the strength of the blades is, so that the blades are easy to break. In view of the above problems, an ultra-thin blade is needed to improve heat dissipation performance and prevent the blade from breaking.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the cicada wing type high-strength fan blade.

The technical purpose of the invention is realized by the following technical scheme: a cicada wing type high-strength fan blade comprises a connecting body and blades circumferentially and uniformly distributed on the connecting body, wherein at least one reinforcing ring made of a metal material is fixed on each blade, a through groove penetrating through each blade is formed in each blade, and a limiting block used for sealing the through groove is arranged at an opening of each blade, which is positioned in the through groove; the reinforcing ring passes through the through groove, the lateral wall in through groove limits the radial movement of reinforcing ring along the connector, the stopper limits the axial displacement of reinforcing ring along the connector and rotates around the axis of connector.

The effect that above-mentioned setting reached: one end of the blade is fixed on the connecting body, the part of the blade close to the connecting body has strong anti-fracture capability, and the part of the blade far away from the connecting body has weaker anti-fracture capability. Because the blade is very thin, the fracture resistance of the middle position of the blade is weak, and the reinforcing ring plays a role in supporting the middle position of the blade, so that the fracture resistance of the blade is improved, and the air suction capacity of the blade is improved; the reinforcing ring made of metal has stronger supporting capacity for the blades, so that the whole fan blade can bear faster rotating speed.

Further setting: the reinforcing ring is arranged at any position of the blade along the axial direction of the connecting body.

The effect that above-mentioned setting reached: through verifying, the reinforcement ring lies in the optional position of blade along the axial of connector, can both play the effect of support to the blade for the blade can not break.

Further setting: the upper surfaces of the blades, the limiting blocks and the reinforcing ring are located on the same plane.

The effect that above-mentioned setting reached: therefore, the whole structure is more attractive, and the metal reinforcing ring and the fan blades are integrally arranged when injection molding is carried out.

Further setting: the diameter between adjacent reinforcement rings satisfies the following formula: d = (50-70)% D, where D represents the diameter of the small reinforcement ring; d represents the large stiffening ring diameter.

The effect that above-mentioned setting reached: when the length of the blade is relatively long, one stiffening ring is not sufficient for support, and a plurality of stiffening rings may be provided. The large density of the reinforcing rings reduces the air volume, the small density of the reinforcing rings loses the supporting effect, and the diameter relation of the adjacent reinforcing rings is calculated according to the formula (D = (50-70)% D), so that the density of the reinforcing rings is prevented from being too large or too small.

Further setting: the width of the limiting block is larger than the thickness of the blade.

The effect that above-mentioned setting reached: the limiting block is arranged on the blade body, plays a limiting role, and prevents the blade and the reinforcing ring from sliding relatively. The stopper is greater than blade thickness for joint strength between stopper and the blade is stronger, makes and bears stronger torsion between blade and the reinforcement ring.

Further setting: the connecting body, the blade and the reinforcing ring are fixedly connected in an injection molding mode.

The effect that above-mentioned setting reached: the fan is thick liquid before the shaping, through mould injection moulding, and at the in-process of moulding plastics, the fan solidifies the while and the integrative setting of reinforcement ring, connects more firmly like this.

Further setting: the thickness of the blade is between 0.05 and 0.1.5 mm.

The effect that above-mentioned setting reached: the blades are in the range of the thickness, and the increased air volume is relatively large.

Further setting: the thickness of the reinforcing ring is 0.1-0.3 mm.

The effect that above-mentioned setting reached: the reinforcing ring is too thin and cannot play a supporting role, the gas flow can be influenced if the reinforcing ring is too thick, and the performance of the fan blade cannot be influenced and the blade can be supported if the thickness of the reinforcing ring is 0.1-0.3 mm.

Compared with the prior art, the invention has the following beneficial effects:

1. after the thickness of the blades is reduced, the blades of the same size have more blades, so that the air quantity is improved, and the heat dissipation performance is improved;

2. the reinforcing ring is arranged to ensure that the blade of the cicada wing type cannot be broken, so that the anti-breaking capacity of the blade is improved;

3. the quantity and the position of reinforcement ring can be adjusted wantonly, the combination, carry out the integrated design to the blade of different models, ensure to increase the amount of wind of flabellum, ensure simultaneously that the blade can not fracture.

Drawings

FIG. 1 is a schematic structural diagram of a conventional fan;

fig. 2 is an overall configuration diagram of the present embodiment;

FIG. 3 is a schematic view of the structure of the embodiment after the reinforcement ring and the blade are exploded;

fig. 4 is a schematic structural view of the embodiment embodying the blade and the stiffening ring.

In the figure: 1. a linker; 2. a blade; 21. a through groove; 22. a limiting block; 3. a reinforcement ring; 31. and (6) positioning a groove.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1: referring to fig. 2-3, a cicada wing type high strength fan blade includes a connector 1, and blades 2 circumferentially and uniformly distributed on the connector 1, at least one reinforcing ring 3 made of metal is fixed on the blades 2, the metal may be stainless steel, aluminum alloy, and the like, in this example, two reinforcing rings 3 are preferred, one of the reinforcing rings 3 is located at one end of the blades 2 far away from the connector 1, and the other reinforcing ring 3 is located at the middle position of the blades 2. The two stiffening rings 3 are attached to the blade 2 in the same way. Set up logical groove 21 that runs through blade 2 on blade 2, be equipped with the stopper 22 that sets up with blade 2 an organic whole at the opening part that leads to

groove

21, 3 joints of stiffening ring are in leading to groove 21, and stopper 22 prevents that stiffening ring 3 from breaking away from logical groove 21. The stiffening ring 3 passes through the logical groove 21, and the lateral wall that leads to the groove 21 restricts stiffening ring 3 along the radial displacement of connector 1, and stopper 22 restriction stiffening ring 3 along the axial displacement of connector 1 and around the axis rotation of connector 1 to make stiffening ring 3 and blade 2 fixed connection. Set up like this, increase the density of blade 2, and then improve the amount of wind, through reinforcement ring 3, improve the fracture resistance's of blade 2 ability, when guaranteeing to increase the fan amount of wind, blade 2 can not fracture.

Referring to fig. 2-3, the stiffening ring 3 is located at any position of the blade 2 along the axial direction of the connecting body 1, and it is preferable that the blade 2, the stopper 22 and the upper surface of the stiffening ring 3 are located on the same plane in this embodiment. The width of stopper 22 is greater than the thickness of blade 2, and the upper surface of stiffening ring 3 is seted up with stopper 22 complex spacing groove, and stopper 22's length is the same with stiffening ring 3's width, and like this from the outward appearance, stiffening ring 3 and stopper 22 form a whole, more pleasing to the eye.

Referring to fig. 2-3, the connecting body 1, the blades 2, and the reinforcing ring 3 are fixedly connected by injection molding, the connecting body 1 and the blades 2 are made of liquid plastic before molding, and are molded by the aid of a mold, and the connecting body 1 and the fan are completely integrated with the reinforcing ring 3 during the molding and solidification process.

Referring to fig. 2 to 3, the diameters of two adjacent reinforcement rings 3 satisfy the following equation: d = (50-80)% D, where D represents the diameter of the small stiffening ring 33; d represents the diameter of the large reinforcement ring 3, the embodiment is described by taking the example of adding two reinforcement rings 3, the diameter of the large reinforcement ring is 100mm, and the diameter of the small reinforcement ring 3 is selected to be in the range of 50-80 mm.

2-3, the thickness of the blade 2 is between 0.05-0.1.5 mm; the thickness of the reinforcing ring 3 is between 0.1 and 0.3 mm.

The implementation principle of the above embodiment is as follows: with blade 2 attenuation, improve the flabellum ability of induced drafting, set up reinforcement ring 3 simultaneously, improve blade 2's anti cracked ability, can enough improve the amount of wind of flabellum like this, can strengthen blade 2's anti cracked ability again. The quantity and the position that 3 leads to of reinforcement ring can set up wantonly to can use on the flabellum of multiple model, improve the commonality of using.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a cicada wing type high strength flabellum, includes connector (1) and blade (2) of circumference equipartition on connector (1), its characterized in that: at least one reinforcing ring (3) made of metal is fixed on each blade (2), a through groove (21) penetrating through each blade (2) is formed in each blade (2), a limiting block (22) used for sealing the through groove (21) is arranged at the opening of each blade (2) located at the corresponding through groove (21), and each limiting block (22) is connected to the corresponding reinforcing ring (3) in an open mode; the reinforcing ring (3) penetrates through the through groove (21), the side wall of the through groove (21) limits the radial movement of the reinforcing ring (3) along the connecting body (1), and the limiting block (22) limits the axial movement of the reinforcing ring (3) along the connecting body (1) and the rotation around the axis of the connecting body (1).

2. The cicada wing type high-strength fan blade of claim 1, wherein: the reinforcing ring (3) is positioned at any position of the blade (2) along the axial direction of the connecting body (1).

3. The cicada wing type high-strength fan blade of claim 2, wherein: the upper surfaces of the blades (2), the limiting blocks (22) and the reinforcing ring (3) are located on the same plane.

4. The cicada wing type high-strength fan blade of claim 1, wherein: the diameter between adjacent reinforcement rings (3) satisfies the following formula:

d = (50-70)% D, where D represents the diameter of the small stiffening ring (3); d represents the diameter of the large stiffening ring (3).

5. The cicada wing type high-strength fan blade of claim 1, wherein: the width of the limiting block (22) is larger than the thickness of the blade (2).

6. The cicada wing type high-strength fan blade of claim 1, wherein: the connecting body (1), the blade (2) and the reinforcing ring (3) are fixedly connected in an injection molding mode.

7. The cicada wing type high-strength fan blade of claim 1, wherein: the thickness of the blade (2) is between 0.05 and 0.1.5 mm.

8. The cicada wing type high-strength fan blade of claim 1, wherein: the thickness of the reinforcing ring (3) is 0.1-0.3 mm.