TWM606577U - Fan structure - Google Patents

Abstract

This creation is about a fan structure. The fan structure includes a hub, a plurality of fan blades, and an annular guide plate. The plurality of fan blades are integrally extended from the outer periphery of the hub to form an integral shape; the annular guide plate is integrally formed from the plurality of fan blades. The ring is arranged on the periphery of the hub. Thereby, the annular guide plate can disperse the vortex and concentrate the airflow. Because the vortex dispersion of each blade is inconsistent, the narrow-frequency noise generated by the fan structure will not accumulate, so that the fan structure has the advantages of reducing noise and concentrating airflow.

Description

Fan structure

This creation is about a heat dissipation structure, and especially about a fan structure that can reduce noise and concentrate airflow.

The internal electronic components of electronic equipment and devices, such as motherboards, integrated circuits, PCBs and other components, will generate heat during operation. When the heat accumulates in the electronic components, problems such as damage or short circuit will occur. Therefore, installing cooling fans inside electronic equipment and devices can effectively help the electronic components to dissipate heat, so as to extend the operating efficiency and life of the electronic components.

However, common axial cooling fans will form eddy currents and generate noise during operation, or the airflow is not concentrated and reduce the heat dissipation efficiency, which often makes the surrounding users feel noisy and irritable, or feel the heat of electronic equipment and devices. Feel unwell.

In view of this, the creator has focused on the above-mentioned existing technology, specially researched and cooperated with the application of academic theory, and tried his best to solve the above-mentioned problems, which became the goal of the creator's improvement.

This creation provides a fan structure, which uses the annular guide plate to disperse the vortex and concentrate the air flow. Because the vortex dispersion of each blade is inconsistent, the narrow-frequency noise generated by the fan structure will not accumulate, so that the fan structure can reduce noise , The advantages of concentrated air flow

In this creative embodiment, this creative system provides a fan structure, including: a hub; a plurality of fan blades integrally extending from the outer periphery of the hub; and an annular guide plate integrally extending from the plurality of fan blades It is formed and arranged around the periphery of the hub.

Based on the above, when the hub drives each fan blade to rotate, the vortex caused by the rotation will be tangentially dispersed by the annular guide plate, thereby reducing the noise generated by the vortex at the entrance of the fan structure, so that the fan structure has the advantage of reducing noise.

Based on the above, when the hub drives each fan blade to rotate, the airflow caused by the rotation will be blocked by the annular guide plate to produce a wind collection effect, so that the fan structure has the characteristic of concentrated airflow.

The detailed description and technical content of this creation will be explained as follows in conjunction with the drawings. However, the attached drawings are for illustrative purposes only and are not used to limit this creation.

Please refer to FIG. 1 to FIG. 4. The present invention provides a fan structure. The fan structure 10 mainly includes a hub 1, a plurality of fan blades 2 and an annular guide plate 3.

The hub 1 can be made of plastic, metal, or metal covered with plastic material. The plurality of fan blades 2 are integrally formed from the outer periphery of the hub 1, so the plurality of fan blades 2 can be made of plastic or metal. Wherein, when the plural fan blades 2 are made of plastic material, the hub 1 and the fan blades 2 can be made by integral plastic injection molding.

The detailed description is as follows. Each fan blade 2 has a windward surface 21 and a leeward surface 22. The windward surface 21 is formed on the front of the fan blade 2, and the leeward surface 22 is formed on the back of the fan blade 2, and each fan blade 2 is away from the hub. One end of 1 has an end edge 23.

The annular guide plate 3 is integrally formed from the plurality of fan blades 2 and is formed around the periphery of the hub 1, so the annular guide plate 3 can be made of plastic or metal. Wherein, when the annular guide plate 3 is made of plastic material, the hub 1, the fan blade 2 and the annular guide plate 3 can be made of integral plastic injection molding.

Further description is as follows, the annular guide plate 3 is surrounded by a plurality of upright pieces 31 spanning between each adjacent windward surface 21 and the leeward surface 22. Wherein, the position of the axis L1 of the hub 1 and the axis L2 of the annular guide plate 3 overlap in this embodiment, but this is not a limitation.

In addition, the annular guide plate 3 of this embodiment is an elliptical ring plate 32. The elliptical ring plate 32 defines a short axis a and a long axis b that are perpendicular to each other. The two end points s1 of the short axis a are located in the plural sectors. In the middle of a part of the blade 2, the two end points s2 of the long axis b are located on the end edges 23 of one of the plurality of fan blades 2 opposite to both. Among them, the shape of the annular guide plate 3 in this embodiment is not limited to an ellipse, and the shape of the annular guide plate 3 can also be any geometric shape such as a circle, a quincunx, and a polygon.

As shown in Figures 1 and 3, the use state of the fan structure 10 of the present invention uses an annular guide plate 3 to form an integral extension from a plurality of fan blades 2 and is arranged around the periphery of the hub 1. The annular guide plate 3 is bridged by It is surrounded by a plurality of upright pieces 31 between each adjacent windward face 21 and leeward face 22. When the hub 1 drives each fan 2 to rotate, the vortex caused by the rotation will be tangentially dispersed by the upright pieces 31 Because the vortex dispersion of each blade 2 is inconsistent, the narrow-frequency noise generated by the fan structure 10 will not accumulate, thereby reducing the noise generated by the vortex at the inlet of the fan structure 10, so that the fan structure 10 has the advantage of reducing noise.

In addition, when the hub 1 drives the fan blades 2 to rotate, the air flow caused by the rotation will be blocked by the annular guide plate 3 to produce a wind collection effect, so that the fan structure 10 has the characteristic of concentrated air flow.

In summary, the fan structure of this creation can indeed achieve the intended purpose of use, and solve the deficiencies of conventional knowledge, and is industrially usable, novel and progressive, and fully meets the requirements for patent applications. It is submitted in accordance with the Patent Law. Please check carefully and grant the patent for this case to protect the rights of the creator.

10: Fan structure 1: Wheel hub 2: fan blade 21: Windward side 22: Leeward side 23: End edge 3: Ring guide 31: upright piece 32: Oval ring plate a: short axis b: long axis L1, L2: axis line s1, s2: endpoint

Figure 1 is a three-dimensional schematic diagram of the fan structure of this creative.

Figure 2 is another three-dimensional schematic diagram of the fan structure of the invention.

Figure 3 is a schematic top view of the fan structure of this creative.

Fig. 4 is a schematic cross-sectional view taken along the line A-A in Fig. 3.

10: Fan structure

1: Wheel hub

2: fan blade

21: Windward side

23: End edge

3: Ring guide

31: upright piece

32: Oval ring plate

L1, L2: axis line

Claims (6)

A fan structure includes: A wheel hub A plurality of fan blades are formed integrally extending outward from the outer periphery of the hub; and An annular guide plate is integrally formed from the plurality of fan blades and is arranged around the periphery of the hub. The fan structure of claim 1, wherein the axis of the hub overlaps with the axis of the annular guide plate. The fan structure according to claim 1, wherein each of the fan blades has a windward surface and a leeward surface, and the annular guide plate is formed by a plurality of upright pieces bridged between the adjacent windward and leeward surfaces Surrounded by. The fan structure according to claim 1, wherein the annular guide plate is an oval annular plate. The fan structure according to claim 4, wherein the oval ring plate defines a short axis, and two ends of the short axis are located in the middle of a part of the plurality of fan blades. The fan structure according to claim 4, wherein each fan blade has an end edge at one end away from the hub, the elliptical ring plate defines a long axis, and the two ends of the long axis are located on the plurality of fan blades One of them is opposite to the end edge of both.

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