Silence type vertical axis wind turbine

Abstract

The utility model discloses a silence type vertical axis wind driven generator which comprises a silence cylinder, an arc-shaped flow guide plate, a generator base body and blades, the silence cylinder is concentrically arranged on the generator base body, a rotating shaft vertically and upwards extending into the silence cylinder is concentrically arranged in the generator base body, and the blades are vertically arranged on the periphery of the rotating shaft. The arc-shaped flow guide plates are vertically arranged on the inner wall of the mute cylinder at intervals, an air flow channel pointing to the blades is formed between every two adjacent arc-shaped flow guide plates, and an air inlet communicated with the air flow channels is formed in the outer wall of the mute cylinder in an inwards-concave mode. According to the mute type vertical axis wind driven generator, the mute cylinder can be used for carrying out safety protection on the blades, the problem that the rotating blades are touched by mistake or people are hurt after the blades fall off is avoided, noise transmission can be reduced, the mute effect is improved, wind power can enter the air flow channel through the air inlet and is blown to the blades through the air flow channel, and the noise is reduced. The driving blades drive the rotating shaft of the generator base body to rotate to achieve wind power generation.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical axis wind generators, in particular to a silent vertical axis wind generator. Background Art

[0002] Compared with horizontal axis wind turbines, vertical axis wind turbines have a smaller rotation radius, higher space utilization, and are safer to use.

[0003] Vertical-axis wind turbines are compact, suitable for installation on building roofs, offering flexible layout and convenient construction. However, they typically rotate at high speeds, generating considerable noise during operation, which can cause noise pollution to the surrounding environment. Furthermore, the high-speed rotation of the blades poses safety risks, requiring improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a silent vertical axis wind turbine to reduce noise problems and improve safety.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A silent vertical axis wind turbine comprises: a silent cylinder, an arc-shaped guide plate, a generator base and blades. The silent cylinder is concentrically arranged on the generator base. A rotating shaft extending vertically upward into the silent cylinder is concentrically arranged in the generator base. The blades are vertically arranged around the rotating shaft. The arc-shaped guide plates are spaced and vertically arranged on the inner wall of the silent cylinder. An air flow channel pointing to the blades is formed between adjacent arc-shaped guide plates. An air inlet connected to the air flow channel is concavely arranged on the outer wall of the silent cylinder.

[0007] Wherein, the rotating shaft is provided with brackets which are connected to the blades in a one-to-one correspondence.

[0008] Wherein, the annular array of blades is distributed around the rotating shaft.

[0009] Wherein, a flange is provided at the bottom of the mute cylinder, and screws connected to the flange are provided on the generator base.

[0010] Wherein, the flange is provided with threaded holes corresponding to the screws.

[0011] Wherein, the inner wall of the silent cylinder is welded and fixed to the arc-shaped guide plate.

[0012] The beneficial effects of the present invention are as follows: a silent vertical axis wind turbine, which can not only provide safety protection for the blades through the silent tube, avoiding the problem of accidentally touching the rotating blades or injuring people after the blades fall off, but also reduce the spread of noise and improve the silent effect. Wind can enter the airflow duct through the air inlet, blow to the blades through the airflow duct, drive the blades to drive the rotating shaft of the generator base to rotate, and realize wind power generation. The airflow duct realizes the uniformity of the air inlet angle, which is beneficial to reduce the wind resistance during the rotation of the blades and further improve the power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 yes Figure 1 Schematic diagram of the structure in which the middle silent tube is separated from the generator base;

[0015] Figure 3 yes Figure 2 AA cross-sectional view of the middle silent tube. DETAILED DESCRIPTION

[0016] The following combination Figures 1 to 3 The technical solution of the present utility model is further illustrated by specific embodiments.

[0017] like Figures 1 to 3 The silent vertical axis wind turbine shown includes: a silent tube 2, an arc-shaped guide plate 4, a generator base 1 and blades 7. The silent tube 2 is concentrically arranged on the generator base 1, and a flange 5 is provided at the bottom of the silent tube 2. The generator base 1 is provided with screws 6 connected to the flange 5, and the flange 5 is provided with threaded holes corresponding to the screws 6, which facilitates assembly.

[0018] A rotating shaft 10 is concentrically arranged in the generator base 1 and extends vertically upward to the mute cylinder 2. The blades 7 are vertically arranged around the rotating shaft 10. Figure 2 As shown, the shaft 9 is provided with brackets 8 connected one-to-one with the blades 7, which has a stable structure. The blades 7 are distributed in an annular array around the shaft 10, with uniform weight distribution and good dynamic balance effect during rotation.

[0019] The arc guide plates 4 are spaced apart and vertically arranged on the inner wall of the silent cylinder 2, and an air flow channel 11 pointing to the blade 7 is formed between adjacent arc guide plates 4. In this embodiment, the inner wall of the silent cylinder 2 and the arc guide plates 4 are welded and fixed, and the structure is firm.

[0020] like Figure 3As shown, the airflow channel 11 has a large inlet and a small outlet near the blade 7. Furthermore, it is curved, which accelerates the airflow and increases the rotation speed of the blade 7, thereby improving power generation efficiency. Furthermore, the mute tube 2 not only provides safety protection for the blade 7, preventing accidental contact with the rotating blade 7 or injury from blade 7 falling off, but also reduces the outward transmission of noise, thereby improving the mute effect.

[0021] In this embodiment, the outer wall of the silent cylinder 2 is concavely provided with an air inlet 3 connected to the air flow channel 11. The air inlets 3 are distributed in a circular array on the outer wall of the silent cylinder 2. The wind can enter the air flow channel 11 through the air inlet 3, and the air flow channel 11 is used to blow toward the clockwise rotating blades 7, driving the blades 7 to drive the rotating shaft 10 of the generator base 1 to rotate, thereby realizing wind power generation.

[0022] like Figure 3 As shown, the airflow channel 11 achieves a uniform air inlet angle, which is beneficial to reducing the wind resistance during the rotation of the blades 7, thereby improving the power generation efficiency.

[0023] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A silent vertical axis wind turbine, characterized in that: include: A silent cylinder, an arc-shaped guide plate, a generator base and blades, the silent cylinder is concentrically arranged on the generator base, a rotating shaft extending vertically upward to the silent cylinder is concentrically arranged in the generator base, the blades are vertically arranged around the rotating shaft, the arc-shaped guide plates are spaced and vertically arranged on the inner wall of the silent cylinder, an air flow channel pointing to the blades is formed between adjacent arc-shaped guide plates, and an air inlet connected to the air flow channel is concavely arranged on the outer wall of the silent cylinder.

2. The silent vertical axis wind turbine according to claim 1, characterized in that: The rotating shaft is provided with brackets connected to the blades in a one-to-one correspondence.

3. The silent vertical axis wind turbine according to claim 1, characterized in that: The annular array of blades is distributed around the rotating shaft.

4. The silent vertical axis wind turbine according to claim 1, characterized in that: A flange is provided at the bottom of the mute cylinder, and screws connected to the flange are provided on the generator base.

5. The silent vertical axis wind turbine according to claim 4, characterized in that: The flange is provided with threaded holes corresponding to the screws.

6. The silent vertical axis wind turbine according to claim 1, characterized in that: The inner wall of the silent cylinder is fixed to the arc-shaped guide plate by welding.

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