CN214118527U

CN214118527U - Noise reduction type axial fan structure

Info

Publication number: CN214118527U
Application number: CN202022915808.6U
Authority: CN
Inventors: 王诤
Original assignee: Hangzhou Winway Electronics Co ltd
Current assignee: Hangzhou Winway Electronics Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-09-03
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses a type of making an uproar axial fan structure falls, which comprises a motor, wheel hub, and a housing, the blade, circle and triangle-shaped wind-guiding pterygoid lamina, be fixed with the motor on the shell and drive the wheel hub gyration, a plurality of blades have been arranged along circumference radially on the wheel hub, the inner edge and the wheel hub fixed connection of blade, the outer fringe of blade and the inner circle fixed connection of circle, the outer lane of circle is equipped with first water conservancy diversion conical surface, be equipped with on the inside wall of shell with first water conservancy diversion conical surface matched with second water conservancy diversion conical surface, form adverse current wind water conservancy diversion wind channel between first water conservancy diversion conical surface and the second water conservancy diversion conical surface, the outer fringe of blade extends along the inner circle of circle and is equipped with triangle-shaped wind-guiding pterygoid lamina, triangle-shaped wind-guiding pterygoid lamina plate body forms the concave arc curved surface towards mainstream wind direction. The utility model discloses be of value to elimination fan vortex noise, when increasing the wind speed increase amount of wind, effective noise suppression produces.

Description

Noise reduction type axial fan structure

Technical Field

The utility model relates to an axial fan technical field especially relates to a type of making an uproar axial fan structure falls.

Background

An axial fan, also called an axial fan, is one of a plurality of fan types, and an axial fan refers to a fan in which air flows in a rotation direction of a shaft on which blades are installed when the fan operates, and the size of the axial fan is different according to different application places and fields. In order to meet the requirement of higher standard heat dissipation performance, the fan speed is usually increased, however, the fan speed is increased, and higher fan noise is also brought, so that the fan structure needs to be improved to reduce the fan noise.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art not enough, the technical problem that solve provides a type of making an uproar axial fan structure falls, is of value to elimination fan vortex noise, when increasing the wind speed increase amount of wind, and effective noise suppression produces.

The utility model discloses a make above-mentioned technical problem solve through following technical scheme.

The noise reduction type axial flow fan structure comprises a motor, a hub, a shell, blades, a wind ring and a triangular wind guide wing plate, wherein the motor is fixed on the shell and drives the hub to rotate, the blades are radially arranged on the hub along the circumferential direction, the inner edges of the blades are fixedly connected with the hub, the outer edges of the blades are fixedly connected with the inner ring of the wind ring, a first flow guide conical surface is arranged on the outer ring of the wind ring, a second flow guide conical surface matched with the first flow guide conical surface is arranged on the inner side wall of the shell, a countercurrent wind guide air channel is formed between the first flow guide conical surface and the second flow guide conical surface, the triangular wind guide wing plate body extends along the inner ring surface of the wind ring, and a concave arc curved surface is formed on the triangular wind guide wing plate body facing the direction of mainstream wind.

Preferably, two waist sides of the triangular wind guide wing plate are respectively connected with the outer edge and the inner ring surface of the wind ring.

Preferably, the blade comprises curved leading and trailing edges, the leading edge leading to the trailing edge from which mainstream wind is directed.

Preferably, the surfaces of the two sides of the blade are respectively a suction curved surface and a pressure curved surface.

Preferably, the number of the blades is seven.

Preferably, the blades, the wind ring and the triangular wind guide wing plate are integrally formed by injection molding.

Preferably, the blades are LS aerofoil blades.

The utility model has the advantages that:

the first guide conical surface of the outer ring of the wind ring inhibits the countercurrent wind from flowing to a certain extent, a countercurrent wind guide air channel is formed between the first guide conical surface and the second guide conical surface on the inner side wall of the shell to provide a guide effect for countercurrent wind, moreover, the plate body of the triangular wind guide wing plate forms a concave arc curved surface towards the wind direction of mainstream wind, the wind receiving surface of the triangular wind guide wing plate is in an outer convex arc shape, the countercurrent wind with the mainstream wind can not interfere in the vertical direction, and the countercurrent wind and the mainstream wind can smoothly converge, so that the formation of the air vortex is inhibited, the vortex noise is reduced, and the reduction of the wind volume is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a front view of the structure of FIG. 1 with the housing removed;

FIG. 3 is a schematic view of the structure in the direction A-A in FIG. 2;

fig. 4 is a schematic structural view of the reverse flow wind guiding duct portion according to the embodiment of the present invention.

Description of reference numerals: 1-motor, 2-hub, 3-shell, 4-blade, 5-wind ring, 6-triangle wind guiding wing plate, 7-concave arc curved surface, 8-inner edge, 9-outer edge, 10-first flow guiding conical surface, 11-second flow guiding conical surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model discloses type of making an uproar axial fan structure falls, including motor 1, wheel hub 2, shell 3, blade 4, solar or lunar halo 5 and triangle-shaped wind-guiding pterygoid lamina 6, be fixed with on the shell 3 motor 1 drives wheel hub 2 gyration, it has a plurality ofly radially to be arranged along circumference on wheel hub 2 blade 4. Specifically, the surfaces of the two sides of the blade 4 are respectively a suction curved surface and a pressure curved surface, the blade 4 comprises an arc-shaped front edge and an arc-shaped rear edge, and main wind is guided from the front edge to the rear edge. In the present embodiment, the number of the blades 4 is seven, for example, the blades 4 are LS airfoil blades. The inner edge 8 of the blade 4 is fixedly connected with the hub 2, and the outer edge 9 of the blade 4 is fixedly connected with the inner ring of the wind ring 5. The outer ring of the air ring 5 is provided with a first flow guide conical surface 10, the inner side wall of the shell 3 is provided with a second flow guide conical surface 11 matched with the first flow guide conical surface 10, and a countercurrent air flow guide air channel is formed between the first flow guide conical surface 10 and the second flow guide conical surface 11. The outer edge 9 of the blade 4 is provided with the triangular air guide wing plate 6 extending along the inner ring surface of the wind ring 5, and further, two waist edges of the triangular air guide wing plate 6 are respectively connected with the outer edge 9 and the inner ring surface of the wind ring 5, for example, the blade 4, the wind ring 5 and the triangular air guide wing plate 6 are integrally formed by injection molding. The plate body of the triangular air guide wing plate 6 faces the direction of main wind to form a concave arc curved surface 7.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. Type of making an uproar axial fan structure falls, characterized by: the wind guide device comprises a motor (1), a hub (2), a shell (3), blades (4), a wind ring (5) and a triangular wind guide wing plate (6), wherein the motor (1) is fixed on the shell (3) and drives the hub (2) to rotate, the plurality of blades (4) are radially arranged on the hub (2) along the circumferential direction, inner edges (8) of the blades (4) are fixedly connected with the hub (2), outer edges (9) of the blades (4) are fixedly connected with an inner ring of the wind ring (5), an outer ring of the wind ring (5) is provided with a first wind guide conical surface (10), a second wind guide conical surface (11) matched with the first wind guide conical surface (10) is arranged on the inner side wall of the shell (3), and a wind guide wind reverse flow channel is formed between the first wind guide conical surface (10) and the second wind guide conical surface (11), the outer edge (9) of the blade (4) extends along the inner ring surface of the wind ring (5) to form the triangular wind guide wing plate (6), and the plate body of the triangular wind guide wing plate (6) forms a concave arc curved surface (7) facing the direction of main wind.

2. The noise reduction type axial fan structure according to claim 1, wherein: and two waist edges of the triangular air guide wing plate (6) are respectively connected with the outer edge (9) and the inner ring surface of the air ring (5).

3. The noise reduction type axial fan structure according to claim 1, wherein: the blade (4) comprises a curved leading edge and a trailing edge, from which leading edge the mainstream wind is directed towards the trailing edge.

4. The noise reduction type axial fan structure according to claim 1, wherein: the surfaces of the two sides of the blade (4) are respectively a suction curved surface and a pressure curved surface.

5. The noise reduction type axial fan structure according to claim 1, wherein: the number of the blades (4) is seven.

6. The noise reduction type axial fan structure according to claim 1, wherein: the blades (4), the wind ring (5) and the triangular wind guide wing plate (6) are integrally formed by injection molding.

7. The noise reduction type axial fan structure according to claim 1, wherein: the blades (4) are LS airfoil blades.