Wind power generation device with noise reduction function

Abstract

The present invention discloses a wind power generation device with a noise reduction function, which is characterized in that it comprises a base, a shock absorbing box is arranged on the base, a shock absorbing assembly is arranged in the shock absorbing box, a support rod is fixedly arranged on the shock absorbing assembly, the support rod vertically penetrates the top wall of the shock absorbing box, and one end of the support rod away from the shock absorbing box is fixedly connected to a noise reduction chamber, a generator is arranged in the noise reduction chamber, a power generation power assembly is arranged at one end of the noise reduction chamber, and the power generation power assembly is fixedly connected to the input shaft of the generator. The invention can reduce vibration and noise.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a wind power generation device with a noise reduction function. Background Art

[0002] Wind power generation refers to the conversion of wind kinetic energy into electrical energy. Wind energy is a clean, pollution-free renewable energy source that has been used by people for a long time, mainly through windmills to pump water, grind flour, etc., but now people are interested in how to use wind to generate electricity. Using wind power to generate electricity is very environmentally friendly, and the wind energy reserves are huge, so it is increasingly valued by countries around the world. The principle of wind power generation is: converting the kinetic energy of wind into mechanical kinetic energy, and then converting mechanical energy into electrical kinetic energy. This is wind power generation.

[0003] However, the existing wind turbines are unable to reduce vibration, because the vibrations generated by their own operation will affect the use of various components on the wind turbines, reducing the service life of the wind turbines. At the same time, they are also unable to reduce the noise generated by the vibrations, which is quite troublesome. Therefore, we propose a wind turbine with noise reduction function to solve the above-mentioned problems. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To achieve the above-mentioned purpose, the present invention proposes a wind power generation device with noise reduction function, including a base, a shock-absorbing box is arranged on the base, a shock-absorbing assembly is arranged in the shock-absorbing box, a support rod is fixedly arranged on the shock-absorbing assembly, the support rod vertically penetrates the top wall of the shock-absorbing box, and one end of the support rod away from the shock-absorbing box is fixedly connected to a noise reduction chamber, a generator is arranged in the noise reduction chamber, a power generation power assembly is arranged at one end of the noise reduction chamber, and the power generation power assembly is fixedly connected to the input shaft of the generator.

[0006] The shock-absorbing box of the present invention provides external protection for the internal shock-absorbing assembly to prevent damage to the shock-absorbing assembly caused by external factors. Since the generator will vibrate during operation, the vibration of the generator will be transmitted to the noise reduction chamber, the support rod and the base. The vibration will generate a large noise during the generation and transmission process. Therefore, the shock-absorbing assembly can absorb the vibration while reducing the noise generated by the vibration. The noise reduction chamber will isolate the noise generated by the generator during the power generation process and reduce the impact of the noise on the external environment.

[0007] Optionally, the shock absorbing assembly includes a slide plate slidably connected to the inner wall of the shock absorbing box, the slide plate is fixedly connected to the support column, and a plurality of groups of first springs are arranged under the slide plate.

[0008] Furthermore, a fixed block is arranged under the skateboard, and two fixed seats are symmetrically arranged on the bottom wall of the shock absorber box about the fixed block, and sliding grooves are opened on the opposite surfaces of the two fixed seats, and a second spring is arranged in the sliding groove. The second spring is fixedly connected with a sliding block toward one end of the fixed block, and a connecting rod is hingedly arranged between the sliding block and the fixed block.

[0009] Furthermore, a noise reduction plate is provided on the bottom wall of the noise reduction chamber, and the generator is fixedly arranged on the noise reduction plate.

[0010] Furthermore, a sound absorbing cavity is arranged on the noise reduction plate, and sound absorbing cotton is arranged in the sound absorbing cavity.

[0011] Furthermore, a heat conducting block is provided through the top wall of the noise reduction chamber, and a heat sink is provided at one end of the heat conducting block away from the noise reduction chamber.

[0012] Furthermore, a U-shaped heat conduction pipe is provided at one end of the heat conduction block facing the generator.

[0013] Furthermore, the power generation assembly includes a turntable fixedly connected to the generator input shaft, and a plurality of fan blades are arranged on the turntable.

[0014] Furthermore, a lightning rod is arranged on the outer wall of the noise reduction chamber.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure inside the shock absorbing box of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure inside the noise reduction chamber of the present invention.

[0020] Description of reference numerals:

[0021] 1. Base; 2. Shock absorber box; 3. Support rod; 4. Noise reduction chamber; 5. Turntable; 6. Fan blades; 7. Slide plate; 8. First spring; 9. Fixed rod; 10. Slide groove; 11. Slider; 12. Second spring; 13. Connecting rod; 14. Fixed block; 15. Noise reduction plate; 16. Sound absorbing chamber; 17. Sound absorbing cotton; 18. U-shaped heat pipe; 19. Heat conduction block; 20. Heat sink; 21. Generator; 22. Input shaft; 23. Mounting block; 24. Lightning rod. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0023] The present invention provides a wind power generation device with noise reduction function, as shown below Figures 1 to 3 Elaborate in detail.

[0024] A wind power generation device with a noise reduction function comprises a base 1, a shock absorbing box 2 is arranged on the base 1, a shock absorbing assembly is arranged in the shock absorbing box 2, a support rod 3 is fixedly arranged on the shock absorbing assembly, the support rod 3 vertically penetrates the top wall of the shock absorbing box 2, and the end of the support rod 3 away from the shock absorbing box 2 is fixedly connected to a noise reduction chamber 4, a generator 21 is arranged in the noise reduction chamber 4, a power generation assembly is arranged at one end of the noise reduction chamber 4, and the power generation assembly is fixedly connected to the input shaft 22 of the generator 21. In this embodiment, the power generation assembly comprises a turntable 5 fixedly connected to the input shaft 22 of the generator 21, and a plurality of fan blades 6 are arranged on the turntable 5.

[0025] The shock absorbing box 2 provides external protection for the internal shock absorbing components to prevent external factors from causing damage to the shock absorbing components. Since the generator 21 generates vibrations during operation, the vibrations of the generator 21 will be transmitted to the noise reduction chamber 4, the support rod 3 and the base 1. The vibrations will generate large noises during the generation and transmission process. Therefore, the shock absorbing components can absorb the vibrations while reducing the noises generated by the vibrations. The noise reduction chamber 4 will isolate the noise generated by the generator 21 during the power generation process and reduce the impact of the noise on the external environment.

[0026] In some embodiments, the shock absorbing assembly includes a slide plate 7 that is slidably connected to the inner wall of the shock absorbing box 2, the slide plate 7 is fixedly connected to the support column, and a plurality of groups of first springs 8 are arranged below the slide plate 7. A flexible layer is arranged on the contact surface between the slide plate 7 and the first spring 8, and the arrangement of the first spring 8 can be used to absorb the vibration transmitted from the generator 21 to the slide plate 7, thereby reducing noise. At the same time, the arrangement of the flexible layer can form a buffer zone between the first spring 8 and the slide plate 7. When the vibration is transmitted to the position of the slide plate 7, the flexible layer will absorb part of the vibration, thereby reducing the amplitude of the vibration transmitted to the first spring 8, so that when the first spring 8 plays a supporting role on the slide plate 7, it will not undergo a large elastic deformation following the vibration, so that the first spring 8 can maintain stable support for the slide plate 7.

[0027] In some embodiments, the shock absorbing assembly further comprises two fixing seats arranged on the bottom wall of the shock absorbing box 2, the two fixing seats are symmetrically arranged about the fixing block 14, and sliding grooves are provided on the opposite surfaces of the two fixing seats, and a second spring 12 is arranged in the sliding groove, and a slider 11 is fixedly connected to the end of the second spring 12 facing the fixing block 14, and a connecting rod 13 is hingedly arranged between the slider 11 and the fixing block 14. When the generator 21 generates vibration or the vibration is generated when the power generation assembly is working, after the vibration is transmitted to the slide plate 7, it will be transmitted in the order of the fixing block 14, the connecting rod 13, the slider 11, and the second spring 12. On the one hand, with the assistance of the second spring 12, the first spring 8 and the second spring 12 can absorb the vibration transmitted to the slide plate 7 more evenly and stably, thereby further reducing the noise generated by the vibration of the entire power generation device. On the other hand, due to the setting of the flexible layer, after the slide plate 7 is vibrated, a high-frequency micro displacement will be generated, so the slide plate 7 will drive the slider 11 to move in the same nature, and at this time, the second spring 12 will follow the movement of the slider 11 to deform to absorb the vibration, thereby further strengthening the absorption of the vibration.

[0028] Furthermore, since the first spring 8 also needs to play a supporting role, the spring needs to maintain the effect of absorbing vibrations while not producing a large elastic variable following the amplitude, and the second spring 12 does not need to play a major supporting role. Therefore, in some embodiments, the second spring 12 is configured to be a spring that is more sensitive to amplitude than the first spring 8, and is used to mainly absorb vibrations with larger amplitudes or higher frequencies that cannot be fully absorbed by the first spring 8.

[0029] Furthermore, considering that in the process of generating electricity by the generator 21, in addition to the noise caused by the vibration of other components driven by the generator 21, the generator 21 itself will also generate a large noise, so a noise reduction plate 15 is provided on the bottom wall of the noise reduction chamber 4, and the generator 21 is fixedly arranged on the noise reduction plate 15. A sound absorbing cavity 16 is arranged on the noise reduction plate 15, and in this embodiment, 5 sound absorbing cavities 16 are arranged, and each sound absorbing cavity 16 is provided with a sound absorbing cotton 17.

[0030] Furthermore, considering that the generator 21 will generate more heat during the power generation process, if the heat cannot be dissipated from the noise reduction chamber 4 to the external environment in time, it will affect the components of the generator 21 and the internal components of the noise reduction chamber 4. Therefore, a heat conductive block 19 is provided through the top wall of the noise reduction chamber 4, a heat sink 20 is provided at the end of the heat conductive block 19 facing away from the noise reduction chamber 4, and a U-shaped heat conductive pipe is provided at the end of the heat conductive block 19 facing the generator 21. The heat generated by the generator 21 will be transferred to the heat sink 20 along the heat conductive block 19, and finally dissipated in the external environment.

[0031] Furthermore, considering that wind power generation devices are generally located in an open field environment, they are easily struck by lightning during thunderstorms. Therefore, a lightning rod 24 is provided on the outside of the noise reduction chamber 4. In this embodiment, a mounting block 23 is provided on the side of the noise reduction chamber 4 away from the power generation component, and the lightning rod 24 is fixedly installed on the mounting block 23.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wind power generation device with noise reduction function, characterized in that: It comprises a base, a shock absorbing box is arranged on the base, a shock absorbing assembly is arranged in the shock absorbing box, a support rod is fixedly arranged on the shock absorbing assembly, the support rod vertically penetrates the top wall of the shock absorbing box and is slidably connected with the shock absorbing box, and one end of the support rod away from the shock absorbing box is fixedly connected with a noise reduction chamber, a generator is arranged in the noise reduction chamber, a power generation assembly is arranged at one end of the noise reduction chamber, and the power generation assembly is fixedly connected with the input shaft of the generator; The shock absorbing assembly comprises a slide plate slidably connected to the inner wall of the shock absorbing box, the slide plate is fixedly connected to the support rod, and a plurality of groups of first springs are arranged below the slide plate, a fixing block is arranged below the slide plate, two fixing seats are symmetrically arranged on the bottom wall of the shock absorbing box about the fixing block, sliding grooves are arranged on the opposite surfaces of the two fixing seats, a second spring is arranged in the sliding groove, a sliding block is fixedly connected to one end of the second spring toward the fixing block, and a connecting rod is hingedly arranged between the sliding block and the fixing block; A noise reduction plate is provided on the bottom wall of the noise reduction chamber, and the generator is fixedly arranged on the noise reduction plate; The noise reduction plate is provided with a plurality of sound absorbing cavities, and sound absorbing cotton is provided in the sound absorbing cavities; A heat conduction block is provided through the top wall of the noise reduction bin, and a heat sink is provided at one end of the heat conduction block away from the noise reduction bin; The heat conducting block is provided with a U-shaped heat conducting pipe at one end facing the generator; A flexible layer is arranged on the contact surface between the slide plate and the first spring.

2. A wind power generation device with noise reduction function according to claim 1, characterized in that: The power generation assembly comprises a turntable fixedly connected to the generator input shaft, and a plurality of fan blades are arranged on the turntable.

3. A wind power generation device with noise reduction function according to claim 1, characterized in that: A lightning rod is arranged on the outer wall of the noise reduction chamber.

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