Wind energy conversion device

Abstract

The utility model discloses a wind energy conversion device, which relates to the technical field of new energy and comprises a rotating shaft, a fan blade assembly, a generator assembly and a support, the rotating shaft is arranged at the top of the support, the fan blade assembly is arranged at the left end of the rotating shaft, the generator assembly is arranged at the right end of the rotating shaft, and a sound insulation shell is mounted at the top of the support. The generator assembly is located in the sound insulation shell, sound absorption sponge is arranged at the end, close to the generator assembly, in the sound insulation shell, and a rubber gasket is arranged between the bottom of the generator assembly and the top of the support. The foam sound insulation layer is arranged in the generator assembly, noise generated when the generator assembly operates can be effectively reduced through cooperation of the sound insulation shell, meanwhile, the rubber gasket is arranged between the generator assembly and the support, vibration is absorbed and dispersed through the rubber gasket to reduce the noise level, and noise reduction is achieved. And the problem that noise pollution is generated during operation of the device can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, in particular to a wind energy conversion device. Background Art

[0002] With the development of society, the demand for energy is increasing. Traditional energy can no longer meet the needs of modern development. Exploiting new energy is a necessity for the development of the times, and wind energy is one of the representatives of new energy. Wind resources have strong potential energy and can provide us with huge energy. Wind energy is a clean and renewable energy. The use of wind energy is to convert wind energy into mechanical energy, and finally convert mechanical energy into electrical energy or other forms of energy.

[0003] In the process of implementing the utility model, the inventors found that there are at least the following problems in this technology. Since the device needs to capture wind through rapidly rotating blades during operation, it will generate noise of higher frequency and intensity. Noise pollution will not only affect people's daily life and rest, but may also have a negative impact on the surrounding environment. Utility Model Content

[0004] In order to improve the problem that the above-mentioned device generates noise of higher frequency and intensity during operation, causing negative impact on the surrounding environment, the utility model provides a wind energy conversion device.

[0005] The utility model provides a wind energy conversion device, which adopts the following technical solutions:

[0006] A wind energy conversion device comprises a rotating shaft, a fan blade assembly, a generator assembly and a bracket, wherein the rotating shaft is arranged at the top of the bracket, the fan blade assembly is arranged at the left end of the rotating shaft, and the generator assembly is arranged at the right end of the rotating shaft. A sound insulation shell is installed on the top of the bracket, and the generator assembly is located inside the sound insulation shell. A sound absorbing sponge is arranged at one end of the sound insulation shell near the generator assembly, a rubber gasket is arranged between the bottom of the generator assembly and the top of the bracket, and a foam sound insulation layer is arranged inside the generator assembly.

[0007] By adopting the above technical solution, when the airflow passes through the fan blade assembly, the fan blade assembly will be driven by the airflow to rotate the rotating shaft, and the rotating shaft is connected to the generator assembly, so that the movement of the rotating shaft can be transmitted to the generator assembly. The generator assembly generates electricity by interacting with the rotating shaft, and the captured wind energy is converted into electrical energy. During the operation of the device, a certain amount of noise will be generated. A foam sound insulation layer is set inside the generator assembly to prevent noise transmission, and the noise is limited inside the sound insulation shell through the mutual cooperation of the sound-absorbing sponge and the sound insulation shell to block the noise propagation path. At the same time, a rubber gasket is set between the generator assembly and the bracket to absorb and disperse vibration, thereby reducing noise, realizing the noise reduction function of the device, and trying to avoid excessive noise from causing negative impacts on the surrounding environment.

[0008] Optionally, the fan blade assembly includes a plurality of fan blade bodies, and outer sides of the plurality of fan blade bodies are sleeved with rubber bushings.

[0009] By adopting the above technical solution, the direct contact between the fan blade body and the rotating shaft is reduced, thereby effectively reducing the vibration and noise caused by wind force.

[0010] Optionally, the surface of the fan blade body is coated with a polyester fiber sound-absorbing layer, and a sound-absorbing cavity is arranged inside the fan blade body.

[0011] By adopting the above technical solution, the air flow noise caused by the movement of the fan blade body can be effectively absorbed and blocked.

[0012] Optionally, a shock-absorbing gasket is installed at the connection between the fan blade assembly and the rotating shaft.

[0013] By adopting the above technical solution, an additional buffering effect can be provided and the degree of vibration transmission to the entire system can be further reduced.

[0014] Optionally, the sound insulation shell is a multi-layer structure, and an air cavity is arranged inside the sound insulation shell.

[0015] The above technical solution is used to block the noise propagation path.

[0016] Optionally, a vibration isolation seat is installed at the bottom of the bracket.

[0017] By adopting the above technical solution, the vibration and noise level of the entire device can be reduced.

[0018] Optionally, a baffle is installed at the lower end of the outer side of the bracket.

[0019] By adopting the above technical solution, the air flow is controlled to reduce noise transmission.

[0020] Optionally, a control system is provided at one end of the sound insulation shell close to the generator assembly, and an output end of the control system is electrically connected to an input end of the generator assembly.

[0021] By adopting the above technical solution, the control system can adjust the output power of the generator assembly as needed and optimize the operating efficiency of the device under different conditions.

[0022] In summary, the present invention has at least one of the following beneficial effects:

[0023] By providing a foam sound insulation layer inside the generator assembly and cooperating with a sound insulation shell, the noise generated during the operation of the generator assembly can be effectively reduced. At the same time, by providing a rubber gasket between the generator assembly and the bracket, the noise level can be reduced by absorbing and dispersing vibrations through the rubber gasket, which can effectively solve the problem of noise pollution generated by the device during operation.

[0024] A silencer cavity is provided inside the fan blade body to effectively suppress the noise generated by air flow. At the same time, a polyester fiber sound-absorbing layer is coated on the fan blade body to effectively absorb and block the air flow noise caused by the movement of the fan blade body. A rubber bushing is sleeved on the outside of the fan blade body to reduce the direct contact between the fan blade body and the rotating shaft. The vibration and noise caused by wind can be effectively reduced, thereby further reducing the working noise level of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 It is a side view structural schematic diagram of the utility model;

[0028] Figure 3 It is a schematic diagram of the partial structure of the rotating shaft and the fan blade assembly of the utility model;

[0029] Figure 4 It is a schematic diagram of the local structure of the generator assembly and the bracket of the utility model;

[0030] Figure 5 This is a schematic diagram of the fan blade structure of the utility model.

[0031] In the figure: 1. rotating shaft; 2. fan blade assembly; 3. generator assembly; 4. control system; 5. rubber bushing; 6. shock-absorbing gasket; 7. sound-absorbing sponge; 8. foam sound insulation layer; 9. rubber gasket; 10. polyester fiber sound-absorbing layer; 11. sound insulation shell; 12. air cavity; 13. silencer cavity; 14. baffle; 15. bracket; 16. vibration isolation seat; 17. fan blade body. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 The utility model is described in further detail.

[0033] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 The utility model provides an embodiment: a wind energy conversion device, comprising a rotating shaft 1, a wind blade assembly 2, a generator assembly 3 and a bracket 15, wherein the rotating shaft 1 is arranged on the top of the bracket 15, and a vibration isolation seat 16 is fixedly installed on the bottom of the bracket 15 to reduce the vibration and noise level of the entire device. A baffle 14 is installed at the lower end of the outer side of the bracket 15 to control air flow and thus reduce noise transmission.

[0034] Please refer to the attached figure in the instruction manual Figure 1 and Figure 3 The fan blade assembly 2 is provided with a shock absorbing pad 6 at the connection between the fan blade assembly 2 and the rotating shaft 1. It can provide an additional buffering effect and further reduce the degree of vibration transmission to the entire system.

[0035] Please refer to the attached figure in the instruction manual Figure 1 and Figure 5 , at the left end of the rotating shaft 1, the fan blade assembly 2 includes a plurality of fan blade bodies 17, and the outer sides of the plurality of fan blade bodies 17 are fixedly sleeved with rubber bushings 5. This reduces the direct contact between the fan blade body 17 and the rotating shaft 1, and can effectively reduce the vibration and noise caused by wind force. The surface of the fan blade body 17 is coated with a polyester fiber sound-absorbing layer 10, and a sound-absorbing cavity 13 is provided inside the fan blade body 17. The air flow noise caused by the movement of the fan blade body 17 can be effectively absorbed and blocked.

[0036] Please refer to the attached figure in the instruction manual Figure 2 and Figure 3 The generator assembly 3 is arranged at the right end of the rotating shaft 1, and a soundproof shell 11 is installed on the top of the bracket 15. The soundproof shell 11 is a multi-layer structure, and an air cavity 12 is arranged inside the soundproof shell 11 to block the noise propagation path.

[0037] Please refer to the attached figure in the instruction manual Figure 2The generator assembly 3 is located inside the soundproof housing 11, and a control system 4 is provided at one end of the soundproof housing 11 near the generator assembly 3, and the output end of the control system 4 is electrically connected to the input end of the generator assembly 3. The control system 4 can adjust the output power of the generator assembly 3 as needed to optimize the operating efficiency of the device under different conditions.

[0038] Please refer to the attached figure in the instruction manual Figure 2 and Figure 4 A sound-absorbing sponge 7 is arranged at one end of the sound-proof shell 11 near the generator assembly 3, a rubber gasket 9 is arranged between the bottom of the generator assembly 3 and the top of the bracket 15, and a foam sound insulation layer 8 is arranged inside the generator assembly 3.

[0039] Working principle: When in use, install the device in a suitable position. When the airflow passes through the fan blade assembly 2, the fan blade body 17 will be pushed by the airflow to rotate the rotating shaft 1. The rotating shaft 1 is connected to the generator assembly 3, so that the movement of the rotating shaft 1 can be transmitted to the generator assembly 3. The generator assembly 3 generates electricity by interacting with the rotating shaft 1. The captured wind energy is converted into electrical energy. The generator assembly 3 will be monitored and controlled by the control system 4. The control system 4 can automatically adjust the operating status of the generator assembly 3 as needed. When the wind speed is low, the control system 4 can adjust the load of the generator assembly 3 to improve the conversion efficiency. When the wind speed is too high, the control system 4 can reduce the load of the generator assembly 3 to protect the device, thereby ensuring maximum utilization of available wind energy and providing stable power output.

[0040] During the operation of the device, a certain amount of noise will be generated. First, a foam sound insulation layer 8 is set inside the generator assembly 3 to prevent noise transmission, and the noise is limited inside the sound insulation shell 11 through the cooperation of the sound-absorbing sponge 7 and the sound insulation shell 11 to block the noise propagation path. At the same time, a rubber gasket 9 is set between the generator assembly 3 and the bracket 15 to absorb and disperse the vibration generated by the generator assembly 3, thereby reducing the noise. Secondly, a rubber bushing 5 and a polyester fiber sound absorption layer 10 are set on the fan body 17, which can effectively absorb and disperse the vibration caused by wind force. At the same time, a silencer cavity 13 is set inside the fan body 17 to effectively suppress the noise generated during air flow, thereby achieving the noise reduction function and avoiding excessive noise from causing negative impact on the surrounding environment.

[0041] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A wind energy conversion device, comprising a rotating shaft (1), a wind blade assembly (2), a generator assembly (3) and a bracket (15), characterized in that: The rotating shaft (1) is arranged at the top of the bracket (15), the fan blade assembly (2) is arranged at the left end of the rotating shaft (1), and the generator assembly (3) is arranged at the right end of the rotating shaft (1). A sound insulation shell (11) is installed on the top of the bracket (15), and the generator assembly (3) is located inside the sound insulation shell (11). A sound absorbing sponge (7) is arranged at one end of the sound insulation shell (11) close to the generator assembly (3). A rubber gasket (9) is arranged between the bottom of the generator assembly (3) and the top of the bracket (15), and a foam sound insulation layer (8) is arranged inside the generator assembly (3).

2. A wind energy conversion device according to claim 1, characterized in that: The fan blade assembly (2) comprises a plurality of fan blade bodies (17), and the outer sides of the plurality of fan blade bodies (17) are sleeved with rubber bushings (5).

3. A wind energy conversion device according to claim 2, characterized in that: The surface of the fan blade body (17) is coated with a polyester fiber sound-absorbing layer (10), and a sound-absorbing cavity (13) is arranged inside the fan blade body (17).

4. A wind energy conversion device according to claim 1, characterized in that: A shock-absorbing gasket (6) is installed at the connection between the fan blade assembly (2) and the rotating shaft (1).

5. A wind energy conversion device according to claim 1, characterized in that: The sound insulation shell (11) is a multi-layer structure, and an air cavity (12) is provided inside the sound insulation shell (11).

6. A wind energy conversion device according to claim 1, characterized in that: A vibration isolation seat (16) is installed at the bottom of the bracket (15).

7. A wind energy conversion device according to claim 1, characterized in that: A baffle (14) is installed at the lower end of the outer side of the bracket (15).

8. A wind energy conversion device according to claim 1, characterized in that: A control system (4) is provided at one end of the sound insulation housing (11) close to the generator assembly (3), and an output end of the control system (4) is electrically connected to an input end of the generator assembly (3).

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