Small wind power generation tree

Abstract

The utility model discloses a small-sized wind power generation tree which comprises a tree trunk, tree branches and a plurality of small-sized wind power generators, and the tree trunk comprises a positioning plate, a main tree trunk and a tree bottom plate; the branch comprises a hoop piece, main branch bodies and a small wind driven generator base, at least two main branch bodies are arranged on the hoop piece, and the hoop piece is tightly installed on the trunk in a sleeving mode and provided with a vertical sliding preventing assembly; the main branch is provided with at least two small-sized wind driven generator bases used for installing small-sized wind driven generators. The installation difficulty of the tree-shaped structure is reduced by adopting the installation mode of the hoop pieces, and the connection reliability is improved by arranging the vertical sliding prevention assembly; the vertical sliding prevention assembly is arranged on the tree trunk in advance, so that the branches are accurately and efficiently positioned, that is, the small fan unit is installed in a high-precision mode, and the small fan unit is located at the preset optimal space position.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a small wind power generation tree. Background Art

[0002] As an important renewable energy source, wind energy has the advantages of being pollution-free, widely distributed, technologically mature, and economical in the energy field. Compared with traditional energy sources, it has obvious advantages. However, with the rapid development of large-scale wind power in recent years, land resources have become an important factor affecting its development. However, the existing wind turbines are often large in size, difficult to produce and install, and expensive, and the site selection requirements are relatively stringent, making it difficult to truly achieve full popularization in other venues. The application scenarios of small wind power generation systems are relatively flexible and diverse, and they occupy less space. For example, in rural and remote areas, isolated grids or microgrids such as urban outdoor landscape lighting, they can be customized and deployed according to specific needs and environmental conditions. At present, a tree-shaped structure power generation system composed of multiple small wind turbines has been put into practical use because it is more coordinated with the environment. However, the tree-shaped structure power generation system of small wind turbines has just started, and the cost of each subsystem is still relatively high, which directly affects its market promotion. Among them, the installation of the tree-shaped structure subsystem is more difficult and the construction cost is higher. Utility Model Content

[0003] In view of the defects of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a small wind power generation tree with a simple structure, which can effectively improve the connection stiffness between the trunk and branches and the installation accuracy, thereby reducing the difficulty of installation.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a small wind power generation tree, including a trunk, branches and a plurality of small wind turbines, the trunk including a main trunk and a tree bottom plate; the branches including a hoop, main branches and a small wind turbine base, and at least two main branches are provided on the hoop, the hoop is tightly installed on the trunk and is equipped with an anti-vertical sliding component; at least two small wind turbine bases are provided on the main branches for installing small wind turbines.

[0005] Preferably, the small wind turbine is a vertical axis wind turbine, comprising a support column, a rotating shaft, a generator and at least two blades. The rotating shaft is mounted on the support column, and the generator is arranged at the bottom of the rotating shaft. The side of the rotating shaft is provided with two blades distributed symmetrically along the center of the rotating shaft, and the roots of the two blades connected to the rotating shaft are provided with strip-shaped air holes extending up and down; the shape of the blade is a petal-shaped curved surface that spirals down from the top to the bottom and is in a gradually opening state.

[0006] Preferably, the hoop member is composed of two semicircular arc plates matching the shape of the main trunk and end plates arranged at both ends of the semicircular arc.

[0007] Preferably, the anti-vertical sliding assembly matching the clamp member includes two positioning plates, which are symmetrically arranged on both sides of the main trunk. The positioning plates are provided with positioning plate fixing holes, and the end plates of the clamp member are provided with branch mounting holes corresponding to the positioning plate fixing holes. The clamp member clamps the positioning plates, and the fasteners pass through the clamp member and the positioning plates in sequence, so that the main branches are fixed to the main trunk.

[0008] Preferably, the main trunk and main branches are hollow tubes, which are equipped with electric wires connected to the small wind turbine. The main trunk is provided with a main trunk cable hole, and the hoop is provided with a hoop cable hole. The main trunk cable hole and the hoop cable hole are arranged one by one.

[0009] Preferably, the anti-vertical sliding assembly and the tree bottom plate are fixedly connected to the main trunk by welding, or the positioning plate, the main trunk and the tree bottom plate are cast as one piece.

[0010] Preferably, the hoop member and the small wind turbine base are fixedly connected to the main tree branch by welding, or the hoop member, the main tree branch and the small wind turbine base are integrally cast.

[0011] The beneficial effects of the utility model are as follows: the difficulty of installing the tree-shaped structure is reduced by adopting the installation form of the clamping hoop, and an anti-vertical sliding component is provided to improve the reliability of the connection; by arranging the anti-vertical sliding component on the tree trunk in advance, accurate and efficient positioning of the branches is achieved, that is, the small wind turbine unit is installed with high precision, so that it can achieve the maximum power generation efficiency in the predetermined optimal spatial position, which is safe and reliable, with a simple structure, improves the connection stiffness and installation accuracy between the trunk and the branches, ensures the wind power generation efficiency, and greatly improves the construction efficiency, reducing the construction and installation costs of the small wind power generation tree-shaped structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a front view of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of a tree trunk;

[0015] Figure 4 for Figure 3 A magnified view of part I;

[0016] Figure 5 Schematic diagram of the structure of a tree branch;

[0017] Figure 6 A top view of a tree branch;

[0018] Figure 7 for Figure 6 AA section view;

[0019] Figure 8 The figure is a schematic diagram of the connection of branches;

[0020] Fig. 9 It is a structural schematic diagram of a small wind turbine;

[0021] Fig.10 is a schematic diagram of the connection between the blade and the rotating shaft;

[0022] In the figure: 1-trunk, 11-positioning plate, 12-main trunk, 13-tree bottom plate, 14-main trunk cable hole, 15-positioning plate fixing hole, 2-branch, 21-hoop, 22-main branch, 23-small wind turbine base, 24-branch mounting hole, 25-hoop cable hole, 3-small wind turbine, 31-blade, 31a-strip air outlet, 32-support column, 33-rotating shaft, 34-generator. DETAILED DESCRIPTION

[0023] In order to better understand the improvements made by the present invention relative to the prior art, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] like Figure 1 As shown in FIG. 10 , a small wind power generation tree is mainly composed of a trunk 1, branches 2 and a plurality of small wind turbines 3.

[0025] The trunk 1 is mainly composed of a main trunk 12 and a tree bottom plate 13, wherein the branch 2 includes a hoop 21, a main branch 22 and a small wind turbine base 23, and at least two main branches 22 are arranged on the hoop 21. The main trunk 12 and the main branch 22 are both hollow tubes, and wires connected to the small wind turbine 3 are arranged inside. The main trunk 12 is provided with a main trunk cable hole 14, and the hoop 21 is provided with a hoop cable hole 25, and the main trunk cable hole 14 and the hoop cable hole 25 are arranged one by one.

[0026] The hoop 21 is composed of two semicircular plates matching the shape of the main trunk 12 and end plates arranged at both ends of the semicircle. The hoop 21 is tightly mounted on the trunk 1 and is equipped with an anti-vertical sliding component, wherein the anti-vertical sliding component and the tree bottom plate 13 are respectively fixedly connected to the main trunk 12 by welding, or the positioning plate 11, the main trunk 12 and the tree bottom plate 13 are integrally cast. The anti-vertical sliding component is composed of two positioning plates 11, which are symmetrically arranged on both sides of the main trunk 12. The positioning plates 11 are provided with positioning plate fixing holes 15, and the end plates of the hoop 21 are provided with branch mounting holes 24 corresponding to the positioning plate fixing holes 15. The hoop 21 clamps the positioning plates 11, and the fasteners pass through the hoop 21 and the positioning plates 11 in sequence, so that the main branch 22 is fixed to the main trunk 12.

[0027] At least two small wind turbine bases 23 are provided on the main branch 22 for installing the small wind turbine 3, wherein the hoop 21 and the small wind turbine base 23 are respectively fixedly connected to the main branch 22 by welding, or the hoop 21, the main branch 22 and the small wind turbine base 23 are integrally cast. The small wind turbine 3 is a vertical axis wind turbine, mainly composed of a support column 32, a rotating shaft 33, a generator 34 and at least two blades 31, the rotating shaft 33 is sleeved on the support column 32, and the generator 34 is arranged at the bottom of the rotating shaft 33.

[0028] Two blades 31 are arranged on the side of the rotating shaft 33 and are symmetrically distributed along the rotating shaft 33. The roots of the two blades 31 connected to the rotating shaft 3 are provided with strip-shaped air holes 31a extending up and down. When the wind acts on one of the blades, part of the wind can enter the other blade through the gap at the root of the blade and interact with it, thereby reducing the starting wind speed. The blade 31 is in the shape of a petal-shaped curved surface that spirals downward from the top to the bottom and is in a gradually opening state, which increases the wind-catching area and further reduces the starting wind speed of the micro vertical axis wind turbine.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A small wind power tree, comprising a trunk (1), branches (2) and a plurality of small wind turbines (3), characterized in that: The tree trunk (1) comprises a main trunk (12) and a tree bottom plate (13); the tree branches (2) comprise a hoop (21), main tree branches (22) and a small wind turbine base (23), and at least two main tree branches (22) are arranged on the hoop (21); the hoop (21) is tightly mounted on the tree trunk (1) and is equipped with an anti-vertical sliding component; at least two small wind turbine bases (23) are arranged on the main tree branches (22) for mounting small wind turbines (3).

2. A small wind power tree according to claim 1, characterized in that: The small wind turbine (3) is a vertical axis wind turbine, comprising a support column (32), a rotating shaft (33), a generator (34) and at least two blades (31); the rotating shaft (33) is sleeved on the support column (32); the generator (34) is arranged at the bottom of the rotating shaft (33); two blades (31) are arranged on the side of the rotating shaft (33) and are symmetrically distributed along the rotating shaft (33); the roots of the two blades (31) connected to the rotating shaft (33) are both provided with strip-shaped air holes (31a) extending up and down; the blades (31) are shaped as petal-shaped curved surfaces that spirally descend from the top to the bottom and are in a gradually opening state.

3. A small wind power tree according to claim 1, characterized in that: The hoop member (21) is composed of two semicircular arc plates matching the shape of the main trunk (12) and end plates arranged at both ends of the semicircular arc.

4. A small wind power generation tree according to claim 3, characterized in that: The anti-vertical sliding assembly matched with the hoop member (21) comprises two positioning plates (11) symmetrically arranged on both sides of the main trunk (12); the positioning plate fixing holes (15) are arranged on the positioning plates (11); the end plates of the hoop member (21) are provided with branch mounting holes (24) corresponding to the positioning plate fixing holes (15); the hoop member (21) clamps the positioning plates (11); the fasteners pass through the hoop member (21) and the positioning plates (11) in sequence, so that the main branches (22) are fixed to the main trunk (12).

5. A small wind power tree according to claim 1, characterized in that: The main trunk (12) and the main branches (22) are both hollow tubes, in which electric wires connected to the small wind turbine (3) are arranged. The main trunk (12) is provided with a main trunk cable hole (14), and the hoop (21) is provided with a hoop cable hole (25). The main trunk cable hole (14) and the hoop cable hole (25) are arranged in a one-to-one correspondence.

6. A small wind power tree according to claim 1, characterized in that: The anti-vertical sliding assembly and the tree bottom plate (13) are respectively fixedly connected to the main trunk (12) by welding, or the positioning plate (11), the main trunk (12) and the tree bottom plate (13) are integrally cast.

7. A small wind power generation tree according to claim 1, characterized in that: The hoop member (21) and the small wind turbine generator base (23) are respectively fixedly connected to the main branch (22) by welding, or the hoop member (21), the main branch (22) and the small wind turbine generator base (23) are integrally cast.

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