CN214577512U

CN214577512U - Windward fan

Info

Publication number: CN214577512U
Application number: CN202120740269.9U
Authority: CN
Inventors: 刘嘉明; 刘镇瑜
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-11-02
Anticipated expiration: 2031-04-12

Abstract

The utility model relates to a fan field specifically relates to a windward formula fan. This windward fan includes: a support bar; the wind collecting shell is rotatably connected with the supporting rod, wherein the caliber of the wind collecting shell is gradually reduced and then gradually increased along the direction from the windward side to the leeward side; and a fan installed near the windward side of the wind collecting case. When the air current passes through the wind collection shell, the air current is from windward side entry, leeward side exit, the binding force is exerted to the air current through the bore shrink section of the wind collection shell in the process, so that the air current is gathered towards the direction of the central line firstly, the supercharging parallel wind is formed on the windward side of the fan blade, the lateral flow is gradually generated under the action of the bore diffusion section to realize redistribution, the air current flow state is improved, the air current flow state is more uniform, meanwhile, the air overflow of the leeward side is accelerated, the air pressure of the leeward side is reduced, the pressure difference between the windward side and the leeward side is increased, and the power generation efficiency of the windward fan is improved.

Description

Windward fan

Technical Field

The utility model relates to a fan field specifically relates to a windward formula fan.

Background

With the development of scientific technology, the power generation types are diversified day by day and are not limited to traditional thermal power generation and hydroelectric power generation. The solar energy and the wind energy are used as inexhaustible, clean and pollution-free renewable energy sources, have great development potential, and have important significance for protecting the environment, saving energy and reducing emission by fully developing and utilizing the solar energy and the wind energy. Therefore, solar power generation technology and wind power generation technology have been gradually recognized and developed.

At present, when a fan of a wind driven generator operates, the resistance of a fan blade is generally large, and the generated power of the fan is low due to uneven airflow flow state.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem that exists because the air current flow state is inhomogeneous to lead to the fan generating efficiency lower that prior art exists, provide a windward fan.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

an upwind fan comprising:

a support bar;

the wind collecting shell is rotatably connected with the supporting rod, wherein the caliber of the wind collecting shell is gradually reduced and then gradually increased along the direction from the windward side to the leeward side;

a fan mounted near a windward side of the wind collection housing.

Preferably, the aperture of the windward side of the wind collection housing is smaller than the aperture of the leeward side.

Preferably, the wind-collecting housing is rotated by the wind force and always faces the incoming wind direction with the windward side thereof.

Preferably, the support rod comprises a fixed rod and a movable rod which are rotatably connected through a rotating shaft.

Preferably, the top end of the moving rod is vertically connected with the bottom of the wind collecting shell, and the moving rod can rotate along with the wind collecting shell.

Preferably, the windward fan further comprises a fan bracket, and the fan bracket is connected with the inner side wall of the wind collecting shell.

Preferably, the fan bracket includes a fixing portion and a connecting portion extending outward from the fixing portion and connected to the wind collecting case.

Preferably, the fan includes a middle shaft portion and a plurality of blades connected to the middle shaft portion.

Preferably, the middle shaft portion of the fan is mounted on the fixing portion of the fan bracket.

Preferably, the blades of the fan are 3-5.

According to the windward fan provided by the technical scheme, the aperture of the wind collection shell is gradually reduced and then gradually increased along the direction from the windward side to the leeward side, when the airflow passes through the wind collection shell, the airflow is laterally fed from the windward side and discharged from the leeward side, in the process, the constraining force is applied to the airflow through the aperture contraction section of the wind collection shell, so that the airflow is firstly gathered towards the direction of the central line, the pressurized parallel wind is formed on the windward side of the fan blade, and then the lateral flow is gradually generated through the effect of the aperture diffusion section to realize redistribution, the airflow flow state is improved and more uniform, meanwhile, the air overflow of the leeward side is accelerated, the air pressure on the leeward side is reduced, so that the pressure difference between the windward side and the leeward side is increased, and the power generation efficiency of the windward fan is improved.

Drawings

Fig. 1 is a schematic structural view of an upwind fan.

Description of the reference numerals

A support rod 1; a wind collecting housing 2; a fan 3; a fan bracket 4; a fixed bar 10; a moving rod 11; a middle shaft portion 30; the blades 31; a fixing portion 40; a connecting portion 41.

Detailed Description

The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the description herein is only intended to illustrate and explain embodiments of the present invention, and is not intended to limit embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the scope of the present invention.

As shown in fig. 1, the embodiment of the utility model provides a windward fan, this windward fan includes:

the bottom end of the supporting rod 1 is generally fixed on the ground or a practical usable plane;

the wind collecting shell 2 is rotatably connected with the supporting rod 1, wherein the caliber of the wind collecting shell 2 is gradually reduced and then gradually increased along the direction from the windward side to the leeward side, and the caliber of the wind collecting shell 2 can be understood as the section radius or the diameter;

a fan 3 mounted near the windward side of the wind collecting case 2;

and a related power generation device for converting mechanical energy generated by the rotation of the fan 3 with the wind into electrical energy to generate power.

The embodiment of the utility model provides an among the windward fan, the bore of its wind collection shell reduces gradually earlier and increases gradually along the direction of windward side to leeward side, when the air current is through the wind collection shell, from windward side, leeward side goes out, the in-process is exerted confining force to the air current through the bore shrink section of wind collection shell and is made the air current gather to the central line direction earlier, and form pressure boost parallel wind at the windward side of fan blade, the effect of rethread bore diffuser produces the side direction gradually and flows and realize the redistribution, the air current flow state has been improved, make the air current flow state more even, leeward side air has been accelerated simultaneously and has been overflowed, reduce leeward side atmospheric pressure, thereby the pressure differential between windward side and the leeward side has been increased, the generating efficiency of this windward fan has been improved.

On the basis of the above embodiment of the present invention, according to a preferred embodiment, the aperture of the windward side of the wind collecting case 2 is smaller than the aperture of the leeward side. Since the pressure on the windward side of the wind collection housing 2 is higher than the pressure on the leeward side thereof, the wind collection housing 2 rotates under the influence of wind force and always keeps the windward side thereof facing the direction of the incoming wind.

On the basis of the above embodiment of the present invention, according to a preferred embodiment, the support rod 1 includes a fixed rod 10 and a movable rod 11, and the fixed rod 10 and the movable rod 11 are rotatably connected through a rotating shaft. The fixed bar 10 is fixed on the ground or on a practically usable plane.

In the embodiment of the present invention, the top end of the moving rod 11 is vertically connected to the bottom of the wind collecting housing 2, and the moving rod 11 can follow the wind collecting housing 2.

On the basis of the embodiment of the utility model, according to a preferred embodiment, windward fan still includes fan bracket 4, fan bracket 4 with the inside wall of wind collection shell 2 is connected.

On the basis of the above-mentioned embodiment of the present invention, according to a preferred embodiment, the fan bracket 4 includes a fixing portion 40 and a connecting portion 41 extending outward from the fixing portion 40 and connected to the wind collecting case 2.

In addition to the above-described embodiment of the present invention, according to a preferred embodiment, the fan 3 includes a middle shaft portion 30 and a plurality of blades 31 connected to the middle shaft portion 30.

In the embodiment of the present invention, the middle shaft portion 30 of the fan 3 is mounted on the fixing portion 40 of the fan bracket 4. According to a preferred embodiment, the blades 31 of the fan 3 are 3-5.

According to the embodiment of the utility model provides a windward fan, its including fix bracing piece 1 on ground or available plane, rotationally with the wind shell 2 that collects that bracing piece 1 is connected, and install near fan 3 of windward side of wind shell 2, wherein, the bore of wind shell 2 that collects reduces gradually earlier and then increases gradually along windward side to the direction of leeward side, just the bore of windward side of wind shell 2 is less than the bore of leeward side. Because the pressure intensity of the windward side of the wind collection shell 2 is larger than the pressure intensity of the leeward side of the wind collection shell, the wind collection shell 2 rotates under the action of wind power and always faces the windward side of the wind collection shell to the windward direction, airflow passes through the wind collection shell and then flows out from the windward side and the leeward side, because the caliber of the wind-collecting shell 2 is gradually reduced and then gradually increased along the direction from the windward side to the leeward side, the restraining force is applied to the air flow through the caliber contraction section of the wind collection shell 2 to ensure that the air flow is firstly collected towards the direction of the central line, pressurized parallel wind is formed at the windward side of the fan blade, and lateral flow is gradually generated under the action of the caliber diffusion section to realize redistribution, thereby improving the air flow state, leading the air flow state to be more uniform, accelerating the air overflow at the leeward side, reducing the air pressure at the leeward side, the power generation efficiency of the windward fan is improved by increasing the pressure difference between the windward side and the leeward side of the fan blade.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it can be right to carry out multiple simple variants to the technical solution of the present invention, but these simple variants and combinations should be regarded as the disclosed content of the present invention, all belong to the protection scope of the present invention.

Claims

1. A windward fan, the windward fan comprising:

a support bar (1);

the wind collecting shell (2) is rotatably connected with the supporting rod (1), wherein the caliber of the wind collecting shell (2) is gradually reduced and then gradually increased along the direction from the windward side to the leeward side;

and the fan (3) is installed near the windward side of the wind collection shell (2).

2. Windward fan according to claim 1, characterised in that the aperture of the windward side of the wind-collecting housing (2) is smaller than the aperture of the leeward side.

3. Windward fan according to claim 1 or 2, characterised in that the wind collection casing (2) rotates under the influence of the wind and always faces the incoming wind with its windward side.

4. The windward fan according to claim 1, wherein the support rod (1) comprises a fixed rod (10) and a movable rod (11), and the fixed rod (10) and the movable rod (11) are rotatably connected through a rotating shaft.

5. The windward fan according to claim 4, characterized in that the top end of the moving rod (11) is vertically connected with the bottom of the wind collection housing (2), and the moving rod (11) can rotate along with the wind collection housing (2).

6. The windward fan according to claim 1, further comprising a fan bracket (4), the fan bracket (4) being connected to an inner side wall of the wind collection housing (2).

7. The windward fan according to claim 6, wherein the fan bracket (4) comprises a fixing portion (40) and a connecting portion (41) extending outwardly from the fixing portion (40) and connected to the wind-collecting housing (2).

8. The windward fan according to claim 7, characterized in that the fan (3) comprises a central shaft portion (30) and a plurality of blades (31) connected to the central shaft portion (30).

9. Windward fan according to claim 8, characterised in that the central shaft (30) of the fan (3) is mounted on a fixing part (40) of the fan bracket (4).

10. The windward fan according to claim 8, characterized in that the blades (31) of the fan (3) are 3-5.