High-performance low-noise cooling fan blade

Abstract

The utility model belongs to the technical field of fan blades, and discloses a high-performance low-noise cooling fan blade which comprises a first hub which is of a cylindrical structure, and a plurality of first fan blades are arranged on the outer wall of the first hub at equal intervals. The second hub is fixedly installed on the front side of the first hub, and a plurality of second fan blades are arranged on the outer wall of the second hub at equal intervals. According to the high-performance low-noise cooling fan blade, a double-layer fan blade structure is adopted, meanwhile, the sizes of the two layers of fan blades are different, so that wind power generated at the same rotating speed is different, and when the two layers of fan blades intersect and collide, the two layers of fan blades generate different wind power; the air flow is firstly concentrated and then diffused, the wind feeling is softer while silencing is carried out, so that the noise reduction function is achieved, through the mode of increasing the number of the fan blades, the passing air can be cut into smaller pieces, the sent wind power is more uniform and softer, the silencing effect is better, and meanwhile the resonance effect can be effectively avoided by adopting the design of the odd number of fan blades.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan blades, in particular to a high-performance and low-noise heat dissipation fan blade. Background Art

[0002] In modern society, electronic devices have become an indispensable part of our lives. From mobile phones, computers to various household appliances, they have brought great convenience to our lives. However, with the development of technology, the performance of these devices has become more and more powerful, and the heat generated has also increased. In order to ensure the normal operation of the equipment, cooling fans came into being. They are widely used in computers, communication products, optoelectronic products, consumer electronics, automotive electronic equipment, switches, medical equipment, heaters, air conditioners, inverters, ATMs, car freezers, welding machines, induction cookers, audio equipment, environmental protection equipment, refrigeration equipment and other traditional or modern instruments and equipment.

[0003] For example, a new type of high-performance, low-noise cooling fan blade with announcement number CN214998438U reduces noise by providing wing slots. However, due to the large number of blades and a large number of wing slots on each blade, the blades need to have high processing accuracy to keep the weight of each blade and the position of the wing slot the same, which not only increases the processing difficulty of the blades, but also increases the cost accordingly. In order to solve the above problems, a high-performance, low-noise cooling fan blade is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a novel endoscopic microorganism collection tube in order to solve the above problems.

[0005] The technical solution adopted by the utility model is as follows: a high-performance, low-noise heat dissipation fan blade, comprising:

[0006] A first hub, which is a cylindrical structure, and a plurality of first blades are equidistantly arranged on an outer wall of the first hub;

[0007] The second hub is fixedly mounted on the front side of the first hub, and a plurality of second blades are equidistantly arranged on the outer wall of the second hub.

[0008] Through the above technical solution, this fan blade structure adopts a double-layer fan blade structure. At the same time, the sizes of the two layers of fan blades are different, resulting in different wind forces generated at the same speed. When the two winds intersect and collide, the airflow is first concentrated and then diffused. While being silent, the wind feels softer, thereby achieving the function of noise reduction.

[0009] In a preferred embodiment, the number of the first blades is the same as the number of the second blades, that is, nine.

[0010] Through the above technical solution, by increasing the number of fan blades, the passing gas can be cut into smaller pieces, the delivered wind force is more uniform and soft, and the silent effect is better. At the same time, the use of an odd number of fan blades can effectively avoid the resonance effect.

[0011] In a preferred embodiment, the centers of the first hub and the second hub are located on the same horizontal line.

[0012] Through the above technical solution, the first hub and the second hub are caused to rotate simultaneously.

[0013] In a preferred embodiment, the length and width of the second blade are smaller than those of the first blade.

[0014] In a preferred embodiment, the first blade and the second blade are both injection molded.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effect of the utility model is: the utility model provides a high-performance and low-noise heat dissipation fan blade.

[0016] 1. It adopts a double-layer fan blade structure. At the same time, the sizes of the two layers of fan blades are different, resulting in different wind forces at the same speed. When the two winds intersect and collide, the airflow is first concentrated and then diffused. While being silent, the wind feels softer, thereby achieving the function of noise reduction.

[0017] 2. By increasing the number of fan blades, the passing gas can be cut into smaller pieces, the delivered wind force is more uniform and softer, and the silent effect is better. At the same time, the use of an odd number of fan blades can effectively avoid the resonance effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is the front view of the utility model;

[0020] Figure 3 This is an airflow diagram when the utility model is used.

[0021] Markings in the figure: 1-first hub; 2-first blade; 3-second hub; 4-second blade. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The following will be combined Figure 1-3 A high-performance, low-noise heat dissipation fan blade according to an embodiment of the utility model is described in detail.

[0024] Example:

[0025] A high-performance, low-noise heat dissipation fan blade, comprising:

[0026] The first hub 1 is a cylindrical structure, and a plurality of first blades 2 are equidistantly arranged on the outer wall of the first hub 1;

[0027] The second hub 3 is fixedly mounted on the front side of the first hub 1. The centers of the first hub 1 and the second hub 3 are located on the same horizontal line, so that the first hub 1 and the second hub 3 rotate simultaneously. A plurality of second blades 4 are equidistantly arranged on the outer wall of the second hub 3. The length and width of the second blades 4 are both smaller than the first blades 2. The first blades 2 and the second blades 4 are both injection molded. This blade structure adopts a double-layer blade structure. At the same time, the sizes of the two layers of blades are different, resulting in different wind forces generated at the same speed. When the two winds intersect and collide, the airflow is first concentrated and then diffused. While being silent, the wind feeling is softer, thereby achieving the function of noise reduction;

[0028] The number of the first fan blades 2 is the same as the number of the second fan blades 4, both being nine. By increasing the number of fan blades, the passing gas can be cut into smaller pieces, the delivered wind force is more uniform and softer, and the silent effect is better. At the same time, the use of an odd number of fan blades can effectively avoid the resonance effect.

[0029] Working principle:

[0030] It adopts a double-layer fan blade structure, and the sizes of the two layers of fan blades are different, resulting in different wind forces generated at the same speed. When the two winds intersect and collide, the airflow is first concentrated and then diffused. While being silent, the wind feels softer, thereby achieving the function of noise reduction. By increasing the number of fan blades, the passing gas can be cut into smaller pieces, the delivered wind force is more uniform and soft, and the silent effect is better. At the same time, the use of an odd number of fan blades can effectively avoid the resonance effect.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-performance, low-noise heat dissipation fan blade, characterized in that: include: A first hub (1) having a cylindrical structure, wherein a plurality of first blades (2) are arranged at equal intervals on an outer wall of the first hub (1); The second hub (3) is fixedly mounted on the front side of the first hub (1), and a plurality of second blades (4) are equidistantly arranged on the outer wall of the second hub (3).

2. A high-performance, low-noise heat dissipation fan blade according to claim 1, characterized in that: The number of the first blades (2) and the number of the second blades (4) are the same, namely nine.

3. A high-performance, low-noise heat dissipation fan blade according to claim 1, characterized in that: The centers of the first hub (1) and the second hub (3) are located on the same horizontal line.

4. A high-performance, low-noise heat dissipation fan blade according to claim 1, characterized in that: The length and width of the second fan blade (4) are both smaller than the first fan blade (2).

5. A high performance and low noise heat dissipation fan blade as claimed in claim 1, characterized in that: The first fan blade (2) and the second fan blade (4) are both injection molded.

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