Wind power generation device

Abstract

To provide a wind power generation device with high maintainability.SOLUTION: A wind power generation device comprises: a first mobile mechanism; a pedestal section that can be moved on a reference surface by the first mobile mechanism; a second mobile mechanism; and a frame section that can be moved on the reference surface by the second mobile mechanism. The frame section is configured to be independent of the pedestal section. The wind power generation device also includes: a power generation section arranged on the pedestal section; a blade section that is supported by the frame section and rotates by capturing airflow; and a transmission section that transmits drive force of the blade section to the power generation section. A relative position between the power generation section and the blade section can be varied.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present specification relates to a wind turbine generator. [Background technology]

[0002] Patent Document 1 discloses a wind power generator in which a power generating unit is directly connected to a blade unit that rotates due to wind force, and the blade unit and the power generating unit rotate synchronously. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-23970 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the wind power generation device of Patent Document 1, the blade section and the power generation section are directly connected, making it difficult to ensure ease of maintenance and freedom of installation location. [Means for solving the problem]

[0005] In the configuration of claim 1, the blade unit and the power generation unit are connected via a transmission unit, so they can be separate. Therefore, the relative positions of the power generation unit and the blade unit can be changed by the portable mechanism. This improves maintainability and ensures freedom in choosing the installation location according to wind conditions. [Brief description of the drawings]

[0006] [Figure 1] 1 is a schematic configuration diagram of a wind turbine generator 1. FIG. [Diagram 2] FIG. 2 is a schematic configuration diagram of a wind power generation device 201. [Diagram 3] FIG. 3 is a schematic configuration diagram of a wind power generating device 301. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS EXAMPLES

[0007] (Configuration of wind power generation device 1) Fig. 1 shows a schematic side view of a wind turbine generator 1. In Fig. 1, the z direction indicates the vertical direction, and the x and y directions indicate the horizontal direction. The wind turbine generator 1 mainly includes a power generation unit 10, a wind turbine unit 20, and a transmission unit 30.

[0008] The power generating unit 10 mainly comprises a base portion 11, a power generating section 12, a first shaft 13, and a driven sprocket 14. The base portion 11 comprises a first wheel 15. The base portion 11 is configured to be movable on a reference plane RP by the first wheel 15. The base portion 11 may also be configured to be fixed to the reference plane RP by a fixing mechanism (e.g., a leveling foot) not shown.

[0009] The power generating unit 12 is disposed on the base 11. The power generating unit 12 is equipped with a power generating motor (not shown). The power generating motor is connected to a first shaft 13. The first shaft 13 protrudes above the power generating unit 12 (in the +z direction). A driven sprocket 14 is fixed to the upper end of the first shaft 13.

[0010] The power generation unit 12 may be a hybrid unit used in a hybrid vehicle, or may be a unit for an electric vehicle such as a BEV or PHEV. The hybrid unit may have a transaxle and a power control unit. Since the hybrid unit is a mass-produced vehicle part, it is very inexpensive compared to wind power generation parts. It becomes possible to provide the wind power generation device 1 at a low price. In addition, the hybrid unit has the advantage of being more readily available than wind power generation parts. In addition, since accumulated vehicle know-how can be utilized for the maintenance of the hybrid unit, maintainability can be improved.

[0011] The wind turbine unit 20 mainly comprises a frame portion 21, a blade portion 22, a main shaft 23, a bearing 24, and a drive sprocket 25. The frame portion 21 has second wheels 26. The frame portion 21 is configured to be movable on a reference plane RP by the second wheels 26. The frame portion 21 may also be configured to be fixed to the reference plane RP by a fixing mechanism (e.g., a leveling foot) not shown.

[0012] The blade portion 22 receives the air flow and rotates around the main shaft 23. The blade portion 22 is supported by the frame portion 21 via bearings 24. The blade portion 22 has a vertical shaft blade structure. The vertical shaft blade structure may be of various types, such as a gyromill type, a Darrieus type, or a Savonius type. The main shaft 23 protrudes below the blade portion 22 (in the -z direction). A drive sprocket 25 is fixed to the lower end of the main shaft 23.

[0013] The transmission section 30 is a section that transmits the driving force generated in the blade section 22 to the power generation section 12 . In this embodiment, the transmission unit 30 is a chain. The transmission unit 30 meshes with the driving sprocket 25 and the driven sprocket 14. This allows the driving force generated in the blade unit 22 to be transmitted to the power generation unit 12 via the transmission unit 30. In addition, by appropriately changing the number and diameter of teeth of the driving sprocket 25 and the driven sprocket 14, it is possible to adjust the speed increase or decrease.

[0014] (effect) In the wind turbine generator 1 of this embodiment, the blade section 22 and the power generating section 12 are connected via the transmission section 30, and therefore the two can be separated by removing the transmission section 30. The first wheel 15 and the second wheel 26 are provided, and therefore the relative positions of the blade section 22 and the power generating section 12 can be changed. The second wheel 26 of the frame section 21 allows the blade section 22 to be freely moved, which improves maintainability and allows freedom in the installation location according to wind conditions. The first wheel 15 of the base section 11 allows the power generating section 12 to be freely moved, which improves maintainability.

[0015] The power generating unit 12 of this embodiment has a configuration in which it receives driving force from the blade unit 22 via the transmission unit 30. Therefore, compared to a configuration in which the power generating unit 12 is directly connected to the blade unit 22, it is possible to increase the degree of design freedom in terms of the position and size of the power generating unit 12. For example, by adjusting the position of the driven sprocket 14, the power generating unit 12 can be positioned closer to the reference plane RP, thereby lowering the center of gravity of the wind turbine generator 1. This makes it possible to increase the installation stability of the wind turbine generator 1. Furthermore, even when the power generating unit 12 is made higher output (larger) and thus heavier, it is possible to increase the safety and ease of the work of removing the power generating unit 12. EXAMPLES

[0016] (Configuration of the wind power generation device 201) A wind power generating device 201 according to the second embodiment will be described with reference to Fig. 2. Fig. 2 is a side view similar to Fig. 1 of the first embodiment. Configurations common to the second embodiment and the first embodiment are given common reference numerals and descriptions thereof will be omitted. Configurations unique to the second embodiment are distinguished by reference numerals in the 200s.

[0017] The power generating unit 210 of the second embodiment further includes a gear box 216 and a second shaft 217 in comparison with the power generating unit 10 of the first embodiment. The second shaft 217 extends in the vertical direction (z direction). The driven sprocket 14 is fixed to the upper part of the second shaft 217. The lower part of the second shaft 217 is connected to the gear box 216. The second shaft 217 is connected to one end of the first shaft 13 via a bevel gear (not shown) inside the gear box 216. The first shaft 13 extends in the horizontal direction (x direction). The other end of the first shaft 13 is connected to the power generating unit 12.

[0018] (effect) The effects unique to the second embodiment will be described. The gear box 216 can increase the rotation of the blade portion 22 to the rotation speed required for generating power and then transmit the rotation to the power generating portion 12. This makes it possible to optimize the power generation efficiency.

[0019] The gear box 216 can convert the vertical rotation axis of the main shaft 23 and the second shaft 217 into the horizontal rotation axis of the first shaft 13 by 90 degrees. This allows the hybrid unit, when used in the power generation unit 12, to be placed in the same horizontal position as when mounted on the vehicle. This allows the hybrid unit to operate appropriately. EXAMPLES

[0020] (Configuration of wind power generation device 301) A wind power generating device 301 according to the third embodiment will be described with reference to Fig. 3. Fig. 3 is a side view similar to Fig. 1 of the first embodiment. Configurations common to the third embodiment and the first embodiment are given common reference numerals and descriptions thereof will be omitted. Configurations unique to the third embodiment are distinguished by reference numerals in the 300 range.

[0021] The base 11 is provided with a lifting mechanism 318. The lifting mechanism 318 is a mechanism that can change the height of the base 11 from the reference plane RP. The lifting mechanism 318 may be, for example, a leveling foot.

[0022] A wind power generating device 301 of the third embodiment includes a transmission gear box 330 instead of the transmission unit 30 (see FIG. 1 of the first embodiment). The transmission gear box 330 includes a drive gear 325 and a driven gear 314. The drive gear 325 and the driven gear 314 are in mesh with each other. The drive gear 325 and the driven gear 314 may be helical gears, for example.

[0023] The first shaft 13 and the driven gear 314 are fixed to each other. The main shaft 23 and the drive gear 325 are configured to be detachable by splines, key fitting, or the like. The drive gear 325 can be fixed to the main shaft 23 by raising the power generation unit 10 by the lifting mechanism 318. Therefore, the driving force generated in the blade portion 22 can be transmitted to the power generation section 12 via the transmission gear box 330. On the other hand, the main shaft 23 and the drive gear 325 can be separated by lowering the power generation unit 10 by the lifting mechanism 318. Therefore, the power generation unit 10 can be freely moved by the first wheel 15.

[0024] (First modified example of the third embodiment) The configuration of the transmission gear box 330 is not limited to a horizontal gear box equipped with a helical gear, and may be various. For example, it may be a planetary gear box equipped with a planetary gear mechanism. In this case, the main shaft 23 and the first shaft 13 may be coaxial. In addition, the main shaft 23 and the planetary gear box may be configured to be detachable.

[0025] (Second modified example of the third embodiment) Although the configuration in which the transmission gear box 330 is separate from the power generation unit 12 has been described, the present invention is not limited to this configuration. The transmission gear box 330 and the power generation unit 12 may be integrated together. Furthermore, the main shaft 23 and the power generation unit 12 may be configured to be detachable from each other.

[0026] (Other variations) The configuration of the transmission unit 30 is not limited to a chain, and may be various. For example, a driving pulley and a driven pulley may be provided instead of the driving sprocket 25 and the driven sprocket 14. The transmission unit 30 may also be a belt.

[0027] The transport mechanism that enables the base unit 11 and the frame unit 21 to be moved is not limited to wheels, but may be another mechanism such as a slide rail.

[0028] The structure of the blade portion 22 is not limited to a vertical shaft type, but may be, for example, a horizontal shaft type. [Explanation of symbols]

[0029] 1: Wind turbine generator 10: Power generating unit 11: Base 12: Power generating section 14: Driven sprocket 15: First wheel 20: Windmill unit 21: Frame 22: Blade 23: Main shaft 25: Driving sprocket 26: Second wheel 30: Transmission section

Claims

[Claim 1] a base unit including a first portable mechanism and movable on a reference surface by the first portable mechanism; a frame portion including a second portable mechanism, the frame portion being movable on the reference surface by the second portable mechanism, the frame portion being configured separately from the base portion; A power generation unit disposed on the base portion; A blade portion supported by the frame portion and rotates by receiving an air flow; a transmission unit that transmits a driving force of the blade unit to the power generation unit; Equipped with The relative position between the power generating section and the blade section is configured to be variable. Wind power generation equipment.

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