Cicada wing high strength fan blade

Abstract

The present invention relates to a cicada wing type high-strength fan blade, which is applied in the technical field of radiators to solve the technical problem of low air volume of existing fans. The fan blade comprises a connector and blades uniformly distributed on the connector in the circumferential direction, at least one metal reinforcing ring is fixed on the blade, a through slot penetrating the blade is provided on the blade, a limit block for sealing the through slot is provided at the opening of the through slot on the blade, and the limit block is connected to the reinforcing ring; the reinforcing ring passes through the through slot, and the side wall of the through slot limits the radial movement of the reinforcing ring along the connector, and the limit block limits the axial movement of the reinforcing ring along the connector and the rotation around the axis of the connector. The present invention has the effect of increasing the air suction volume of the fan blade while ensuring that the blade will not break.

Description

Technical Field

[0001] The present invention relates to the technical field of radiators, and more particularly to a cicada-wing-shaped high-strength fan blade. Background Art

[0002] With the development of science and technology, intelligence and informatization are the trend of contemporary development, and both intelligence and informatization need to rely on servers. A server is a high-performance computer that provides various services to client computers. Its high performance is mainly reflected in high-speed computing power, long-term reliable operation, and strong external data throughput. The server generates heat during the data calculation process, so fans are needed to dissipate heat.

[0003] like Figure 1 As shown, a fan blade includes a connector 1 located in the center and blades 2 evenly distributed circumferentially on the connector 1. When the fan blade rotates, the air is stirred so that the air flows unidirectionally along a specific curved surface of the blade, thereby forming wind. When the fan blade rotates at the same speed, the more blades there are on the fan blade, the greater the air volume and the better the heat dissipation effect. When the number of blades increases, the blades need to be made thinner. The thinner the blades, the weaker the strength of the blades. The disadvantage is that the blades are very easy to break. In view of the above problems, it is necessary to design an ultra-thin blade to improve the heat dissipation performance and prevent the blades from breaking. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a cicada-wing-shaped high-strength fan blade, which has the advantage of increasing the air suction capacity of the fan blade while ensuring that the blade will not break.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: a cicada wing-shaped high-strength fan blade, comprising a connecting body and blades evenly distributed circumferentially on the connecting body, at least one reinforcement ring made of metal is fixed on the blade, a through groove penetrating the blade is opened on the blade, and a limit block for sealing the through groove is provided at the opening of the through groove on the blade; the reinforcement ring passes through the through groove, and the side wall of the through groove limits the radial movement of the reinforcement ring along the connecting body, and the limit block limits the axial movement of the reinforcement ring along the connecting body and the rotation around the axis of the connecting body.

[0006] The above arrangement achieves the following effects: one end of the blade is fixed to the connector, and the portion of the blade close to the connector has a stronger ability to resist fracture, while the portion of the blade far from the connector has a weaker ability to resist fracture. Since the blade is very thin, the middle portion of the blade has a weaker ability to resist fracture. At this time, the reinforcement ring supports the middle portion of the blade, thereby improving the blade's ability to resist fracture and the blade's ability to absorb wind. The metal reinforcement ring has a stronger ability to support the blade, allowing the blade as a whole to withstand a faster rotation speed.

[0007] It is further provided that: the reinforcement ring is located at any position of the blade along the axial direction of the connector.

[0008] The effect achieved by the above arrangement is as follows: through verification, the reinforcing ring can support the blade at any position of the blade along the axial direction of the connector, so that the blade will not break.

[0009] It is further arranged that the upper surfaces of the blade, the limit block and the reinforcing ring are in the same plane.

[0010] The effect achieved by the above arrangement is: the overall appearance is more beautiful, and it is also convenient to set the metal reinforcement ring and the fan blade together during injection molding.

[0011] It is further arranged that the diameter between adjacent reinforcing rings satisfies the following formula: d=(50-70)%D, wherein d represents the diameter of the small reinforcing ring; and D represents the diameter of the large reinforcing ring.

[0012] The effect achieved by the above setting is: when the length of the blade is relatively long, one reinforcement ring is not enough to support it. In this case, multiple reinforcement rings can be set. A large density of the reinforcement ring reduces the air volume, and a small density of the reinforcement ring loses the supporting function. The diameter relationship of adjacent reinforcement rings is calculated according to the formula (d=(50-70)%D) to prevent the density of the reinforcement ring from being too large or too small.

[0013] It is further configured that: the width of the limit block is greater than the thickness of the blade.

[0014] The above arrangement achieves the following effects: the limit block is integrally arranged with the blade, and the limit block plays a role of limiting, preventing relative sliding between the blade and the reinforcing ring. The limit block is larger than the thickness of the blade, so that the connection strength between the limit block and the blade is stronger, and the blade and the reinforcing ring can withstand stronger torsion.

[0015] It is further provided that: the connector, the blades, and the reinforcing ring are fixedly connected by injection molding.

[0016] The above arrangement achieves the following effect: the fan is in a thick liquid state before molding, and is injection molded by a mold. During the injection molding process, the fan solidifies and is integrated with the reinforcement ring, so that the connection is more secure.

[0017] It is further configured that the thickness of the blade is between 0.05-0.1.5 mm.

[0018] The effect achieved by the above setting is: when the blade is within this thickness range, the air volume is increased the most.

[0019] It is further configured that the thickness of the reinforcement ring is between 0.1-0.3 mm.

[0020] The effect achieved by the above setting is: if the reinforcement ring is too thin, it will not play a supporting role, and if it is too thick, it will affect the gas flow. The thickness of the reinforcement ring is 0.1-0.3mm, which will not affect the performance of the fan blades and at the same time play a supporting role for the blades.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. After reducing the thickness of the blades, the fan blades of the same size have more blades, which increases the air volume and improves the heat dissipation performance;

[0023] 2. The setting of the reinforcement ring ensures that the cicada-wing-shaped blades will not break, thus improving the blades’ anti-breakage ability;

[0024] 3. The number and position of the reinforcement rings can be adjusted and combined at will, and combined designs can be made for blades of different models to ensure that the air volume of the fan blades is increased while ensuring that the blades will not break. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of an existing fan;

[0026] Figure 2 It is a schematic diagram of the overall structure of this embodiment;

[0027] Figure 3 is a schematic diagram of the structure of the reinforcement ring and the blade after explosion in this embodiment;

[0028] Figure 4 It is a schematic diagram of the structure of the blade and the reinforcement ring of this embodiment.

[0029] In the figure: 1, connector; 2, blade; 21, through groove; 22, limit block; 3, reinforcement ring; 31, positioning groove. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0031] Example 1: Reference Figure 2-3A cicada wing type high-strength fan blade comprises a connector 1, blades 2 uniformly distributed on the connector 1 in the circumferential direction, and at least one reinforcing ring 3 made of metal material is fixed on the blade 2. The metal can be stainless steel, aluminum alloy or other materials. In this embodiment, two reinforcing rings 3 are preferably provided, one of which is located at the end of the blade 2 away from the connector 1, and the other reinforcing ring 3 is located in the middle of the blade 2. The two reinforcing rings 3 are connected to the blade 2 in the same manner. A through groove 21 penetrating the blade 2 is provided on the blade 2, and a limit block 22 integrally provided with the blade 2 is provided at the opening of the through groove 21. The reinforcing ring 3 is clamped in the through groove 21, and the limit block 22 prevents the reinforcing ring 3 from escaping from the through groove 21. The reinforcing ring 3 passes through the through groove 21, and the side wall of the through groove 21 limits the radial movement of the reinforcing ring 3 along the connector 1, and the limit block 22 limits the axial movement of the reinforcing ring 3 along the connector 1 and the rotation around the axis of the connector 1, so that the reinforcing ring 3 and the blade 2 are fixedly connected. This arrangement increases the density of the blades 2, thereby increasing the air volume. The reinforcement ring 3 improves the anti-fracture ability of the blades 2, ensuring that the blades 2 will not break while increasing the fan air volume.

[0032] refer to Figure 2-3 The reinforcing ring 3 is located at any position of the blade 2 along the axial direction of the connector 1. In this embodiment, the blade 2, the stopper 22 and the upper surface of the reinforcing ring 3 are preferably in the same plane. The width of the stopper 22 is greater than the thickness of the blade 2. The upper surface of the reinforcing ring 3 is provided with a stopper groove that cooperates with the stopper 22. The length of the stopper 22 is the same as the width of the reinforcing ring 3. In this way, from the appearance, the reinforcing ring 3 and the stopper 22 form a whole, which is more beautiful.

[0033] refer to Figure 2-3 The connector 1, blades 2, and reinforcing ring 3 are fixedly connected by injection molding. The connector 1 and blades 2 are liquid plastics before molding and are molded with the help of a mold. During the molding and solidification process, the connector 1 and the fan are completely integrated with the reinforcing ring 3.

[0034] refer to Figure 2-3 The diameters of two adjacent reinforcing rings 3 satisfy the following formula: d=(50-80)%D, where d represents the diameter of the small reinforcing ring 33; D represents the diameter of the large reinforcing ring 3. This embodiment is described by taking the addition of two reinforcing rings 3 as an example. The diameter of the large reinforcing ring is 100 mm, and the diameter of the small reinforcing ring 3 is selected in the range of 50-80 mm.

[0035] refer to Figure 2-3 The thickness of the blade 2 is between 0.05-0.1.5 mm; the thickness of the reinforcement ring 3 is between 0.1-0.3 mm.

[0036] The implementation principle of the above embodiment is: thinning the blade 2 to improve the ability of the blade to absorb wind, and setting the reinforcing ring 3 to improve the anti-fracture ability of the blade 2, so that the wind volume of the blade can be increased and the anti-fracture ability of the blade 2 can be enhanced. The number and position of the reinforcing ring 3 can be set arbitrarily, so that it can be applied to various models of blades, improving the universality of application.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A cicada wing-shaped high-strength fan blade, comprising a connector (1) and blades (2) uniformly distributed on the connector (1) in the circumferential direction, characterized in that: At least two reinforcing rings (3) made of metal are fixed on the blade (2); a through slot (21) penetrating the blade (2) is provided on the blade (2); a limit block (22) for sealing the through slot (21) is provided on the blade (2) at the opening of the through slot (21); the limit block (22) is openly connected to the reinforcing ring (3); the reinforcing ring (3) passes through the through slot (21); the side wall of the through slot (21) limits the radial movement of the reinforcing ring (3) along the connecting body (1); the limit 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); The reinforcing ring (3) is located at any position of the blade (2) along the axial direction of the connector (1); The upper surfaces of the blade (2), the limiting block (22) and the reinforcing ring (3) are located in the same plane; The diameter between adjacent reinforcing rings (3) satisfies the following formula: d=(50-70)%D, wherein d represents the diameter of the small reinforcing ring (3); and D represents the diameter of the large reinforcing ring (3); The width of the limiting block (22) is greater than the thickness of the blade (2); The connector (1), the blades (2) and the reinforcing ring (3) are fixedly connected by injection molding.

2. The cicada wing high-strength fan blade according to claim 1, characterized in that: The thickness of the blade (2) is between 0.05 and 0.15 mm.

3. The cicada wing high-strength fan blade according to claim 1, characterized in that: The thickness of the reinforcing ring (3) is between 0.1 and 0.3 mm.

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