Pressurization increment noise reduction type cooling fan body

Abstract

The utility model relates to a pressurization increment noise reduction type cooling fan body which aims at solving the technical problems that an existing similar product is difficult to bear a motor with higher power, strenuous vibration is easily generated during high-speed rotation, and the overall stability is influenced. The body of the cooling fan body is fan blades; two surfaces of each fan blade are respectively an upper blade surface and a lower blade surface, and the fan blades are respectively arranged on the outer side of the hub at equal intervals; the fan is characterized in that ribs which are arranged at equal intervals and are respectively perpendicular to the bottom of the hub are arranged on the inner side of the hub, a shaft hole for a motor rotating shaft to penetrate through is formed in the middle of the hub, and a reinforcing rib which is bent towards one side of a fan opening is respectively arranged on the edge of the upper blade surface of each fan blade. The ribs vertically arranged on the inner side of the hub play a stabilizing role, the fan body is prevented from generating strenuous vibration during high-speed rotation to affect the overall stability, and the service life of the fan body is guaranteed and prolonged; compared with a common fan blade design for bearing a motor with higher power, the motor with the same power has larger air volume and stronger air pressure.

Description

TECHNICAL FIELD

[0001] The utility model relates to a radiator fan, and is a pressurization, increment and noise reduction type radiator fan body. BACKGROUND

[0002] Radiator fans are generally mainly used for radiating heat of CPU, display card and other mainboard equipment, and the main purpose is to conduct heat and blow it to the air around to achieve the effect of cooling, and some radiator fans are applied to electrical cabinets or industrial equipment cabinets. Meanwhile, with the continuous progress of science and technology, the efficiency of electronic components has been greatly improved, and the popularization of high-efficiency and high-heat electronic components is also more and more extensive. Therefore, the power of the radiator fan is also getting larger and larger, so the requirements for the fan blades are also getting higher. The traditional fan blade structure will produce a large radial runout during rotation due to the inability of its own structure to withstand a high speed, which not only affects the working efficiency of the fan, causes the air volume to decrease and the air pressure to drop, but also produces a large noise to affect the user experience and cause a series of other problems. Therefore, the fan blades of some existing radiator fans are provided with protrusions or grooves at the outer edge blade tips of the fan blades to reduce the noise during operation, such as the authorized announcement number CN214404039U disclosed in the Chinese patent document, the authorized announcement date 2021.10.15., and the utility model name "new high-performance low-noise radiator fan"; and the authorized announcement number CN204463013U disclosed in the Chinese patent document, the authorized announcement date 2015.07.08., and the utility model name "computer radiator fan". However, the opening L-shaped groove provided at the outer edge blade tip of the fan blade in the above-mentioned products, and the arc-shaped first guide rib, the arc-shaped second guide rib and the arc-shaped third guide rib provided at the end of the fan blade are mainly used to improve the noise reduction effect of the fan blade, and do not make technical improvements to the influence of the violent vibration of the fan blade during high-speed rotation on the overall stability, so it is difficult to withstand a larger power motor, and it is easy to produce violent vibration during high-speed rotation, which affects the overall stability. SUMMARY

[0003] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a pressurization, increment and noise reduction type radiator fan body to solve the technical problem that the existing similar products are difficult to withstand a larger power motor, and are easy to produce violent vibration during high-speed rotation, which affects the overall stability. The purpose is realized through the following technical scheme.

[0004] A pressure-boosting, volume-increasing, noise-reducing cooling fan body is disclosed. The main body of the cooling fan body is the fan blades. The two sides of the fan blades are an upper blade surface and a lower blade surface, which are equidistantly arranged on the outer side of the hub. The key structural design feature is that the inner side of the hub has ribs that are equidistantly arranged and perpendicular to the bottom of the hub, and the center of the hub has a shaft hole for the motor shaft to pass through. The ribs vertically arranged on the inner side of the hub play a stabilizing role, preventing the fan body from generating violent vibrations during high-speed rotation, which would affect the overall stability and ensure and improve the service life of the fan body. At the same time, the above-mentioned stable and compact fan blade structure can withstand a higher power motor than a general fan blade design, and has a larger air volume and stronger air pressure than a general fan blade structure using a motor of the same power, making it more versatile.

[0005] Each of the upper blade edges is provided with a reinforcing rib that curves towards the fan opening. These reinforcing ribs make the entire fan blade more stable than ordinary blades during forming. At the same time, the reinforcing ribs increase the strength of the fan blade, and the blade tip at the upper blade edge is not easily deformed during use. This increases airflow, enhances air pressure, and reduces noise, further ensuring the efficiency of the fan body and reducing the noise generated by radial vibration.

[0006] The reinforcing rib has an opening at one end, which further improves its noise reduction effect.

[0007] The fan blade has equidistant arc-shaped serrations on one side of the back of the blade, which further improves its noise reduction effect.

[0008] The ribs are integrally formed with the inner side of the wheel hub, and a stepped side groove is provided at the opening at the top of the wheel hub.

[0009] This utility model features a simple and reasonable structural design, convenient production and assembly, long service life, easy maintenance, overall stability, and good stability. In particular, the reinforcing ribs on the upper edge of each fan blade can withstand the power of a motor, effectively reducing the radial runout of the fan blades when rotating at high speed and maintaining the stable operation of the fan. It is suitable for use as a booster-increase noise reduction cooling fan body and a structural improvement of similar products. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention.

[0011] Figure 2 yes Figure 1 A schematic diagram of the bottom three-dimensional structure.

[0012] Figure 3 yes Figure 2 A schematic diagram of the main structure.

[0013] Figure 4yes Figure 3 A schematic diagram of the structure viewed from below.

[0014] The attached figures are numbered and named as follows: 1. Reinforcing rib, 2. Fan blade, 201. Upper blade surface, 202. Lower blade surface, 3. Rib, 4. Hub, 5. Shaft hole. Implementation

[0015] The structure of this utility model will now be further described with reference to the accompanying drawings. For example... Figures 1-4 As shown, the main body of the cooling fan is the fan blade 2, with an upper blade surface 201 and a lower blade surface 202 on both sides. The fan blades are equidistantly arranged on the outer side of the hub 4. The inner side of the hub has ribs 3 equidistantly arranged and perpendicular to the bottom of the hub. The center of the hub has a shaft hole 5 for the motor shaft to pass through. The upper blade edge of the fan blade has a reinforcing rib 1 that bends towards the fan opening. The ribs are integrally formed with the inner side of the hub. The opening at the top of the hub has a stepped side groove.

[0016] The cooling fan body has a motor shaft installed in the inner shaft hole of the hub as the core. The motor housing or magnet is inserted into the hub as needed. The motor shaft is inserted into the middle tube of the fan frame. At the same time, the middle tube of the fan frame is fixed with silicon steel sheet and circuit board, thus completing the assembly of the cooling fan.

[0017] Based on the above structural features and existing technology, further, one end of the reinforcing rib may also be provided with an opening, or one side of the fan blade may be provided with equidistant arc-shaped serrations at the arc-shaped trailing edge of the back of the blade.

[0018] When the cooling fan is operating, it will generate some radial runout. The reinforcing ribs at the edge of the fan blades connect the edges into a triangular structure, giving the fan body strong stability and effectively reducing radial runout caused by high-speed rotation. Simultaneously, the presence of several vertical ribs on the inner side of the hub-blade connection creates multiple intersecting structures, further enhancing fan stability during operation. This design also increases the overall strength of the fan blades, making the blade tips less prone to deformation, while simultaneously increasing airflow and air pressure, reducing noise, and ensuring a longer service life. Therefore, the cooling fan body has a simple structure and is easy to maintain. The reinforcing ribs on the upper edge of each fan blade effectively reduce the radial runout generated by the fan blades when rotating at high speed, maintaining the stable operation of the fan. The vertical ribs on the inner side of the hub strengthen the connection between the hub and the fan blades, making the fan as a whole stable and ensuring its lifespan. At the same time, because this design reduces the radial runout of the fan blades and stabilizes the connection between the fan blades and the hub, the fan produces less noise during use, ensuring a better user experience. The overall stable and compact design makes the fan body stronger than ordinary fan blade designs, suitable for higher power motors, and more versatile.

[0019] In summary, due to the stable design, the fan body has greater air volume and stronger air pressure when the same power motor is used as the general fan blade structure design, so as to ensure the heat dissipation efficiency; in addition, the above design reduces the radial runout of the fan body, stabilizes the connection part of the fan blade and the hub, so that the noise generated by the heat dissipation fan in use is small.

[0020] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A kind of pressurized increment noise reduction formula heat dissipation fan body, the body of the heat dissipation fan body is fan blade (2);The two sides of the fan blade (2) are respectively upper leaf surface (201) and lower leaf surface (202), and the fan blade (2) is respectively equidistantly arranged on the outside of hub (4);Characterized in that The inner side of the hub (4) is provided with ribs (3) which are equidistantly arranged and respectively perpendicular to the bottom of the hub (4), and the middle of the hub (4) is provided with a shaft hole (5) for the motor rotating shaft to pass through.

2. The pressure boost, volume increase, noise reduction, heat dissipation fan body as claimed in claim 1, wherein The upper leaf surface (201) of the fan blade (2) is respectively provided with a reinforcing rib (1) which is curved to one side of the fan mouth.

3. The pressure boost, volume increase, noise reduction, heat dissipation fan body as claimed in claim 2, wherein The reinforcing rib (1) is provided with an opening at one end.

4. The pressure boost, volume increase, noise reduction, heat dissipation fan body as claimed in claim 2, wherein The arc-shaped rear edge line of the back of the one side blade of the fan blade (2) is provided with arc-shaped sawteeth which are equidistantly arranged.

5. The pressure boost, volume increase, noise reduction, heat dissipation fan body as claimed in claim 1, wherein The ribs (3) are integrally formed with the inner side of the hub (4), and the hub top is provided with a stepped edge slot at the aperture.

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