CN203488314U - Vertical-axis wind turbine - Google Patents

Abstract

The utility model discloses a vertical axis wind power generator. The wind power generator includes a base, a generator, a tower column, a power conversion shaft sleeve and a baffle plate. The base is connected on the ground, and the tower column is perpendicular to the The base, the generator is fixed on the tower column through a bracket, and the power conversion shaft sleeve is connected to the top of the tower column. It is characterized in that: the wind turbine generator also includes a windmill shaft, a windmill, and a fixed shaft sleeve. Connected in the power conversion bushing, the windmill is connected to the windmill shaft, the blades of the windmill are screen-type blades with angles, and a slot perpendicular to the base is opened where the windmill shaft connects to the windmill. The utility model can slide up and down perpendicular to the direction of the base. The utility model has the advantages of simple structure, convenient installation, low wind speed start-up, no noise, and improved power generation efficiency.

Description

A vertical axis wind turbine

technical field

The utility model relates to the technical field of wind power generation, in particular to a vertical axis wind power generator. the

Background technique

Wind power generation, like solar power generation, was originally developed to solve emergency power supply and power supply in remote areas, so the initial development was not very fast. In the 1920s and 1930s, the energy shortage brought about by the global economic crisis, It made experts from all over the world think of the feasibility of using wind power as a supplementary energy source. After the Second World War, various countries conducted research one after another. Due to the poor technical level at that time, the requirements for starting wind speed were high, and the noise of power generation was also very loud, so wind turbines could only be placed in inaccessible places or places with strong winds. , The equipment is also developed towards large-scale wind power generators, specializing in the construction of large-scale wind farms. Due to the characteristics of horizontal-axis wind power generators, small-scale wind power generation has not been well developed for a long time. the

In the 1990s, my country's independent power supply system mainly used horizontal axis wind turbines and solar photovoltaic systems to supply power, which were mainly used in special occasions such as base stations, border posts, and islands. It was mainly a logistics support system for troops. the

After a certain period of application, many problems were found. For example, during the typhoon, the equipment was seriously damaged, the noise was loud, which affected the normal rest of the personnel, and the interference to the communication equipment made some equipment unable to operate normally. The occurrence of these problems made the normal communication and Daily life is affected. the

In order to solve these problems, the utility model provides a vertical axis wind power generator. the

Utility model content

In order to overcome the deficiencies of the above-mentioned prior art, the purpose of the utility model is to reduce the noise of the wind power generator and reduce the equipment loss as much as possible. the

The utility model provides a vertical axis wind power generator. The technical solution adopted by the utility model is: a vertical axis wind power generator, including a base, a generator, a tower column, a power conversion bushing, a windmill shaft, a windmill , baffle, fixed bushing, the base is connected on the ground, the tower is perpendicular to the base, the generator is fixed on the tower through the bracket, the power conversion bushing is connected to the top of the tower, the windmill shaft is connected in the power conversion bushing, the windmill The rotating shaft drives the power conversion sleeve to generate electricity for the generator. The windmill is connected to the windmill shaft and the blades of the windmill are screen blades with angles. There is a card slot perpendicular to the base where the windmill shaft connects to the windmill. It can slide up and down, and when the wind power drives the windmill, the windmill can either rotate axially or slide radially along the windmill shaft. the

The further improvement of the utility model is that: in order to obtain a larger air volume, the windmill is composed of three screen-type blades evenly arranged around the windmill rotation axis. the

The further improvement of the utility model lies in: for the windmill to obtain sufficient wind power when starting at a low speed, the screen-type blade of the windmill is composed of a blade root and a blade tip, and the blade root and the blade tip are connected to form an obtuse angle, and the obtuse angle The setting is so that the blades of the windmill can be in contact with the wind in all directions, and no matter how the wind direction changes, the windmill can obtain enough wind power. the

The further improvement of the utility model lies in that several square sails of the same size are evenly arranged on the blade roots and blade tips of the windmill. . the

The further improvement of the utility model lies in: there is a sliding groove on the windmill shaft, so that the windmill can not only rotate to obtain resistance wind force under the action of wind force, but also slide up and down in the windmill rotation shaft to obtain lift force wind force, which improves the power generation efficiency of the windmill generator . the

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model adopts two sail panels with a certain angle as the windward side of the windmill blade, which increases the windward area of the windmill blade, improves the power generation efficiency of the windmill, and reduces the loss of the windmill blade;

2. The utility model also adopts the form of evenly arranging movable sailboards on the front sailboard and the rear sailboard, so that the air collection volume of the windmill blades is more uniform, and the noise emitted by the windmill blades is reduced;

3. The utility model has a windmill sliding groove on the windmill rotating shaft, which can slide up and down in the windmill rotating shaft 5 to obtain lift wind force, which improves the power generation efficiency of the windmill generator.

The utility model has the advantages of simple structure, convenient installation, low wind speed start-up, no noise, and higher working efficiency than the windmill blades of the same type of wind power generation. ,searchlight. the

Description of drawings

Figure 1 is a schematic structural view of a vertical axis wind turbine;

Fig. 2 is a partially enlarged view of a sailboard structure of a windmill blade of a vertical axis wind turbine.

Detailed ways

In order to deepen the understanding of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments, which are only used to explain the utility model, and do not limit the protection scope of the utility model. the

As shown in Figure 1 and Figure 2, the utility model is a vertical axis wind power generator, including a base 1, a generator 2, a tower column 3, a power conversion bushing 4, a windmill shaft 5, a windmill 6, and a baffle 7 , fixed bushing 8, the base 1 is connected on the ground, the tower column 3 is perpendicular to the base 1, the generator 2 is fixed on the tower column 3 through a bracket, the power conversion bushing 4 is connected to the top of the tower column 3, and the windmill rotating shaft 5 is connected to the power In the conversion shaft sleeve 4, the windmill shaft 5 drives the power conversion shaft sleeve 4 to generate electricity for the generator, the windmill 6 is connected to the windmill shaft 5 and the blades of the windmill 6 are screen-type blades with angles, and the windmill shaft 5 is connected to the windmill 6. The slot 12 perpendicular to the base allows the windmill 6 to slide up and down in the direction perpendicular to the base. When the wind drives the windmill 6, the windmill 6 can rotate axially around the windmill shaft 5 or slide radially along the windmill shaft 5. the

In order to obtain a large air volume, the windmill 6 is composed of three screen-type blades evenly arranged around the windmill shaft 5. No matter how the direction changes, the windmill can obtain sufficient wind force in all directions. the

In order for the windmill to obtain sufficient wind power when starting at a low speed, the screen-type blade of the windmill 6 is composed of a blade root 9 and a blade tip 10, and the blade root 9 and the blade tip 10 are connected to form an obtuse angle. This obtuse angle is set for the blade of the windmill 6 Can be in contact with the wind in all directions, no matter how the wind direction changes, the windmill can obtain sufficient wind power, and several square sails 11 of the same size are evenly arranged on the blade root 9 and the blade tip 10, and the sails 11 are movable structures. A larger wind force can be obtained under the breeze blowing. the

Sliding slots 12 are provided on the windmill rotating shaft, so that the windmill 6 can not only rotate to obtain resistance wind force under the action of wind force, but also slide up and down in the windmill rotating shaft 5 to obtain lift wind force, which improves the power generation efficiency of the windmill generator. the

A kind of vertical axis wind-driven generator, its working process is: when breeze blows windmill blade, movable sail piece 11 rotates, and when sail piece 11 rotates to a certain degree, drives windmill 6 to rotate together, windmill 6 drives windmill rotating shaft 5 to rotate, and windmill rotating shaft 5 generate electricity for the generator through the power rotating shaft 4; the

The utility model has the advantages of simple structure, convenient installation, low wind speed start-up, no noise, and higher working efficiency than the windmill blades of the same type of wind power generation. ,searchlight. the

The embodiments of the utility model disclosed are preferred embodiments, but are not limited thereto. Those skilled in the art can easily comprehend the spirit of the utility model according to the above-mentioned embodiments, and make different extensions and Change, but as long as it does not depart from the spirit of the utility model, it is all within the protection scope of the utility model. the

Claims (5)

1. A vertical axis wind power generator, the wind power generator includes a base (1), a generator (2), a tower (3), a power conversion bushing (4), and a baffle (7). The base (1) is connected to the ground, the tower column (3) is perpendicular to the base (1), the generator (2) is fixed on the tower column (3) through a bracket, and the power conversion bushing (4) Connected to the top of the tower column (3), the feature is that the wind generator also includes a windmill shaft (5), a windmill (6), and a fixed bushing (8), and the windmill shaft (5) is connected to the power conversion Inside the shaft sleeve (4), the windmill shaft (5) drives the power conversion shaft sleeve (4) to rotate, the windmill (6) is connected to the windmill shaft (5), and the blades of the windmill (6) are angled The windmill shaft (5) is connected to the windmill (6) with a slot (12) perpendicular to the base, and the windmill (6) can slide up and down in a direction perpendicular to the base. 2. A vertical axis wind power generator according to claim 1, characterized in that: the windmill (6) is composed of three screen-type blades evenly arranged around the windmill shaft (5). 3. A vertical axis wind power generator according to claim 1, characterized in that: the screen-type blades of the windmill (6) are composed of a blade root (9) and a blade tip (10), and the blade root ( 9) Connect with the blade tip (10) to form an obtuse angle. 4. A vertical axis wind power generator according to claim 3, characterized in that: a plurality of square sails (11) of the same size are arranged on the blade root (9) and the blade tip (10). 5. A vertical axis wind power generator according to claim 4, characterized in that: the sail (11) is a movable structure, and the wind drives the sail (11) to swing.

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