A small wind generator

Abstract

The application relates to the technical field of wind-driven generators, and discloses a small wind-driven generator which comprises a base fixedly installed on a tower through bolts; further comprising: a power generator fixedly installed in the base; a top end of a transmission shaft of the power generator is fixedly connected with an impeller frame; the impeller frame drives the power generator to run under the impetus of wind power; connecting frames are rotatably and penetratively installed on the top of the two sides of the base; the top of each connecting frame is fixedly connected with a wind direction plate; cylinder frames are rotatably embedded on the two sides of the base; an angle transmission module is movably connected to the bottom of the connecting frame; and the connecting frame drives the cylinder frame to rotate towards the corresponding wind direction through the angle transmission module. The small wind-driven generator is provided with an air inlet mechanism capable of adaptively adjusting the angle according to the external wind direction, so that the external cold air can more fully enter the inside of the device, thereby improving the heat dissipation effect of the motor; and the device can automatically clean the airflow filtering plate.

Description

Technical Field

[0001] This invention relates to the field of wind turbine technology, specifically to a small wind turbine. Background Technology

[0002] A wind turbine is a device that uses wind power to rotate blades and generate electricity. Based on the direction of the blades' rotation axis, they are mainly divided into horizontal-axis wind turbines and vertical-axis wind turbines. During operation, the high-speed rotation of the power generation equipment generates a large amount of heat. To reduce the risk of equipment failure, a heat dissipation structure is needed to lower the operating temperature of the generator. However, existing wind turbines still have some problems:

[0003] The fixed positions of the heat dissipation vents on the side walls of commercially available wind turbines make it difficult to effectively introduce cool air into the turbine during use due to changes in the direction of the wind. This results in poor heat dissipation for the generator inside the turbine.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing wind turbines. Summary of the Invention

[0005] The purpose of this invention is to provide a small wind turbine to solve the following problems of existing wind turbines mentioned in the background: the heat dissipation vents on their side walls are fixed in place, and due to changes in the external wind direction, the device is difficult to effectively introduce external cold air into the device during use, resulting in poor heat dissipation for the generator inside the device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a small wind turbine generator, comprising:

[0007] The base is fixedly mounted on the tower by bolts; it also includes: a generator is fixedly installed inside the base, an impeller frame is fixedly connected to the top of the drive shaft of the generator, the impeller frame drives the generator to run under the push of wind, a connecting frame is rotatably installed through the top of both sides of the base, and a wind vane is fixedly connected to the top of the connecting frame, a cylindrical frame is rotatably embedded on both sides of the base, and an angle transmission module is movably connected to the bottom of the connecting frame, the connecting frame drives the cylindrical frame to rotate toward the corresponding wind direction through the angle transmission module;

[0008] The outer edge of the cylinder frame is rotatably equipped with a flow guide mechanism distributed at equal angles. The cylinder frame drives the flow guide mechanism to open when it is facing the air inlet of the base through its own rotation.

[0009] Preferably, the bottom of the impeller frame is rotatably fitted to the top of the base, and the connecting shaft of the impeller frame and the generator is coaxially arranged. The connecting shaft of the generator rotatably passes through the base. Symmetrically distributed wind vanes are arranged on both sides below the impeller frame. The two wind vanes are used to detect the wind direction in different directions. The wind vanes do not contact the upper surface of the base, so that the impeller frame can drive the generator to run.

[0010] Preferably, the top of the base has two sets of symmetrically distributed first guide grooves and second guide grooves, and the second guide groove is closer to the axis of the base than the first guide groove. The radius of the first guide groove is the same as the radius of the second guide groove, and the centers of the first guide groove and the second guide groove are on the same horizontal line. The generator is provided with symmetrically distributed filter plates on both sides. The filter plates are used to block dust and other impurities in the airflow. The outer wall of the filter plate is slidably fitted and embedded in the inner wall of the base, and the filter plate can be removed from the base.

[0011] Preferably, the bottom of the filter plate is fixedly connected to a box, and the opening at the top of the box is connected to the through opening at the bottom of the base. The box is slidably embedded in the bottom of the base. A push block is horizontally fixedly connected to the side wall of the box, and a locking head that serves as a locking support is fitted to the bottom of the push block. The locking head is horizontally slidably installed on the storage rack, and a slope is provided on the lower part of the side of the locking head near the push block. The storage rack is fixedly installed on the bottom surface of the base. The end of the locking head and the inner wall of the storage rack are elastically connected by a spring, so that the locking head can move into the storage rack and the locking head no longer positions the push block.

[0012] Preferably, the angle transmission module includes a drive frame slidably mounted on the inner wall of the base. The drive frame has a "T"-shaped structure, and a rod is slidably inserted coaxially into the mounting groove at the end of the drive frame. The rod is movably mounted inside the base, and a first protrusion is vertically fixedly connected to the top of the end of the rod away from the drive frame. The top of the first protrusion is slidably inserted into a first guide groove, and the middle part of the first protrusion rotatably passes through the bottom of the connecting frame. The rotation axis of the connecting frame is at the center of the first guide groove, so that the connecting frame can drive the first protrusion to rotate along the first guide groove, and the connecting frame can drive the rod and the drive frame to move through the first protrusion.

[0013] Preferably, the angle transmission module further includes a second protruding rod slidably disposed in the through groove of the drive frame, and the top of the second protruding rod is slidably embedded in the second guide groove. The bottom of the second protruding rod is vertically fixed to the top edge of the rotating disk, and the rotating disk is rotatably embedded in the inner wall of the base. The axis of the rotating disk passes through the center of the second guide groove. When the drive frame moves, the angle of the rotating disk can be adjusted by driving the second protruding rod, so that the drive frame can drive the rotating disk to deflect through the second protruding rod.

[0014] Preferably, a rotating disk is coaxially fixedly connected to the top center of the cylinder frame, and the cylinder frame is rotatably embedded in the air inlet on the side wall of the base. A cleaning rod is provided between the cylinder frame and the filter plate. The top of the cleaning rod is fixedly connected to the side of the drive frame away from the insertion rod, and the cleaning rod is symmetrically distributed on the side wall of the filter plate. When the drive frame moves, it can drive the cleaning rod to perform a dust cleaning operation synchronously. The bottom of the cleaning rod is set towards the opening at the top of the box, so that the drive frame can drive the cleaning rod to move on the filter plate.

[0015] Preferably, the mounting ring at the bottom of the cylinder frame is embedded in the top of the fixed bottom cover, and the fixed bottom cover is fixedly embedded in the lower part of the side wall of the base. The fixed bottom cover and the cylinder frame are coaxially arranged. An airflow guide port for air intake is opened on the side of the cylinder frame away from the base. A limiting arc frame and a resisting arc frame are coaxially fixedly connected in the annular groove at the top of the fixed bottom cover from top to bottom. Two limiting arc frames are concentrically arranged at the annular groove opening of the fixed bottom cover. The resisting arc frame is located directly below the notch of the limiting arc frame, and the ends of both the resisting arc frame and the limiting arc frame are provided with guide slopes. The resisting arc frame is located in the middle of the air intake of the base, so that the cylinder frame can rotate on the fixed bottom cover.

[0016] Preferably, the flow guiding mechanism includes a flow divider plate, which is distributed at equal angles on the cylinder frame. The flow divider plate can be opened at a specific position for automatic ventilation. A convex shaft is provided in the middle of the end face of the flow divider plate, and the convex shafts at both the upper and lower ends of the flow divider plate are rotatably embedded in the cylinder frame.

[0017] A reset block and an adjusting block are fixedly installed from top to bottom at the convex shaft at the lower part of the diverter plate. The convex shaft at the lower part of the diverter plate is fixedly installed through the central axis of the reset block, and symmetrical inclined surfaces are provided at both ends of the reset block. Moreover, the movement path of the reset block is between two concentric limiting arc frames, and the rotation angle can be restored when the reset block moves towards the limiting arc frame.

[0018] The adjusting block is located below the limiting arc frame. The moving path of the adjusting block is provided with an abutting arc frame. When the adjusting block moves toward the abutting arc frame, it will be blocked, thus generating a corresponding deflection. This allows the adjusting block at the bottom of the splitter plate to contact the abutting arc frame when the cylinder frame drives the splitter plate to rotate. At this time, the adjusting block can drive the splitter plate to deflect.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the small wind turbine is equipped with an air intake mechanism that can be adaptively adjusted according to the external wind direction, so that the external cold air can enter the device more fully, thereby improving the heat dissipation effect of the motor. Furthermore, the device can automatically clean the airflow filter plate. The specific details are as follows:

[0020] 1. A wind vane is fixedly installed on the top of the connecting frame, while a drive frame is slidably installed on the inner wall of the base. A rod is coaxially slidably inserted into the mounting groove at the end of the drive frame. A first protrusion on the rod rotatably passes through the bottom of the connecting frame. A second protrusion is slidably installed in the through groove of the drive frame. The top of the second protrusion is slidably embedded in the second guide groove, and the bottom of the second protrusion is vertically fixedly connected to the top edge of the rotating disk. A rotating disk is coaxially fixedly connected to the top center of the cylinder frame. The cylinder frame is rotatably embedded in the air inlet on the side wall of the base. The top of the cleaning rod is fixedly connected to the side of the drive frame away from the insertion rod. The cleaning rods are symmetrically distributed on the side wall of the filter plate. When the external wind force pushes the wind vane to rotate, the wind vane drives the first protruding rod through the connecting frame to drive the insertion rod and the drive frame to move synchronously. At this time, the drive frame will drive the rotating disk and the cylinder frame to rotate through the second protruding rod. At this time, the air inlet of the cylinder frame will face the corresponding wind direction, so that the external wind force can fully enter the device to cool the generator. At the same time, the drive frame will drive the cleaning rod to move synchronously to clean the filter plate.

[0021] 2. A limiting arc frame and a contact arc frame are coaxially and fixedly connected sequentially from top to bottom within the annular groove at the top of the fixed base cover. Two limiting arc frames are concentrically arranged at the opening of the annular groove of the fixed base cover. The contact arc frame is located directly below the notch of the limiting arc frame. Guide slopes are provided at the ends of both the contact arc frame and the limiting arc frame. The contact arc frame is located in the center of the air inlet of the base. The flow guiding mechanism includes a splitter plate. The convex shafts at both ends of the splitter plate are rotatably embedded in the cylinder frame. A reset block and an adjusting block are sequentially fixedly installed sequentially from top to bottom at the convex shaft at the lower part of the splitter plate. The reset block has two ends... The device features symmetrical inclined planes. The movement path of the reset block is located between two concentric limiting arc frames. The adjusting block is positioned below the limiting arc frames, and a contact arc frame is positioned along the movement path of the adjusting block. When the cylinder frame rotates, the diverter plate will drive the reset block and the adjusting block to move. When the adjusting block moves toward the contact arc frame, it will be blocked, resulting in a corresponding deflection. At this time, the diverter plate will deflect synchronously, allowing the airflow inside the cylinder frame to flow into the device for cooling. When the reset block moves between the limiting arc frames, it can drive the diverter plate to reset and close. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall external structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the wind vane installation structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the drive frame mounting structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the filter plate installation structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the cleaning rod installation structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the insertion rod installation structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the second protruding rod mounting structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the first protruding rod mounting structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the housing installation structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the locking head mounting structure of the present invention;

[0032] Figure 11 This is a schematic diagram of the mounting structure of the fixed bottom cover of the present invention;

[0033] Figure 12 This is a schematic diagram of the distributor plate installation structure of the present invention;

[0034] Figure 13 This is a schematic diagram of the reset block mounting structure of the present invention;

[0035] Figure 14 This is a schematic diagram of the adjustment block installation structure of the present invention;

[0036] Figure 15 This is a schematic diagram of the mounting structure of the anti-arc frame of the present invention.

[0037] In the diagram: 1. Base; 2. Generator; 3. Impeller frame; 4. Wind vane; 5. Connecting frame; 6. First protruding rod; 7. First guide groove; 8. Insert rod; 9. Drive frame; 10. Second protruding rod; 11. Second guide groove; 12. Rotating disk; 13. Cleaning rod; 14. Filter plate; 15. Box body; 16. Push block; 17. Locking head; 18. Storage rack; 19. Cylinder frame; 20. Flow guiding mechanism; 2001. Diverter plate; 2002. Reset block; 2003. Adjusting block; 21. Limiting arc frame; 22. Abutting arc frame; 23. Fixed bottom cover. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1-15 The present invention provides a technical solution: a small wind turbine generator, comprising:

[0040] The base 1 is fixedly mounted on the tower by bolts; it also includes: a generator 2 is fixedly installed inside the base 1, an impeller frame 3 is fixedly connected to the top of the drive shaft of the generator 2, the impeller frame 3 drives the generator 2 to run under the push of wind power, a connecting frame 5 is rotatably installed through the top of both sides of the base 1, and a wind vane 4 is fixedly connected to the top of the connecting frame 5, a cylindrical frame 19 is rotatably embedded on both sides of the base 1, and an angle transmission module is movably connected to the bottom of the connecting frame 5, the connecting frame 5 drives the cylindrical frame 19 to rotate toward the corresponding wind direction through the angle transmission module;

[0041] A flow guide mechanism 20 is rotatably installed at the outer edge of the cylinder frame 19, and the flow guide mechanism 20 is opened when the cylinder frame 19 rotates towards the air inlet of the base 1.

[0042] The impeller frame 3 is rotatably fitted onto the top of the base 1, and the connecting shafts of the impeller frame 3 and the generator 2 are coaxially arranged. The connecting shaft of the generator 2 rotatably passes through the base 1. Symmetrically distributed wind vanes 4 are arranged on both sides below the impeller frame 3. The two wind vanes 4 are used to detect wind direction in different directions. The wind vanes 4 do not contact the upper surface of the base 1, so that the external wind force can drive the wind vanes 4 to rotate accordingly. The top of the base 1 has two sets of symmetrically distributed first guide grooves 7 and second guide grooves 11, and the second guide groove 11 is closer to the axis of the base 1 than the first guide groove 7. The radius of the first guide groove 7 is the same as that of the second guide groove 11, and the centers of the first guide groove 7 and the second guide groove 11 are on the same horizontal line. Filter plates 14 are symmetrically distributed on both sides of the generator 2. The filter plates 14 are used to block dust and other impurities in the airflow. The outer wall of the filter plate 14 is slidably fitted and embedded in the inner wall of the base 1. The filter plates 14 are used to filter the airflow entering the base 1. The angle transmission module includes a drive frame 9 slidably mounted on the inner wall of the base 1. The drive frame 9 has a "T" shaped structure, and a mounting groove at the end of the drive frame 9 is coaxially slidably inserted. The insert rod 8 is movably installed inside the base 1, and a first protruding rod 6 is vertically fixed to the top of the end of the insert rod 8 away from the drive frame 9. The top of the first protruding rod 6 is slidably inserted into the first guide groove 7, and the middle part of the first protruding rod 6 is rotatably inserted through the bottom of the connecting frame 5. The rotation axis of the connecting frame 5 is on the center of the first guide groove 7, so that the connecting frame 5 can drive the first protruding rod 6 to rotate along the first guide groove 7. At this time, the wind vane 4 will drive the first protruding rod 6 to move along the first guide groove 7 through the connecting frame 5. At this time, the first protruding rod 6 will drive the drive frame 9 to move through the insert rod 8. A rotating disk 12 is coaxially fixedly connected to the top center of the frame 19, and the cylindrical frame 19 is rotatably embedded in the air inlet on the side wall of the base 1. A cleaning rod 13 is provided between the cylindrical frame 19 and the filter plate 14. The top of the cleaning rod 13 is fixedly connected to the side of the drive frame 9 away from the insertion rod 8, and the cleaning rod 13 is symmetrically distributed on the side wall of the filter plate 14. When the drive frame 9 moves, it can drive the cleaning rod 13 to perform a dust cleaning operation simultaneously. The bottom of the cleaning rod 13 is set towards the opening at the top of the box 15. At this time, the drive frame 9 will drive the cleaning rod 13 to move along the filter plate 14 to perform a cleaning operation.

[0043] A box 15 is fixedly connected to the bottom of the filter plate 14, and the opening at the top of the box 15 is connected to the through opening at the bottom of the base 1. The box 15 is slidably embedded in the bottom of the base 1. A push block 16 is horizontally fixedly connected to the side wall of the box 15, and a locking head 17 that serves as a locking support is fitted to the bottom of the push block 16. The locking head 17 is horizontally slidably installed on the storage rack 18, and a slope is provided on the lower part of the side of the locking head 17 near the push block 16. The storage rack 18 is fixedly installed on the bottom surface of the base 1. The end of the locking head 17 and the inner wall of the storage rack 18 are elastically connected by a spring. The locking head 17 can move into the storage rack 18, and the end of the locking head 17 will no longer support and lock the push block 16. At this time, the box 15 and the filter plate 14 can be removed from the bottom of the base 1.

[0044] The angle transmission module also includes a second protruding rod 10 slidably disposed in the through groove of the drive frame 9, with the top of the second protruding rod 10 slidably embedded in the second guide groove 11 and the bottom of the second protruding rod 10 vertically fixedly connected to the top edge of the rotating disk 12. The rotating disk 12 is rotatably embedded in the inner wall of the base 1, and the axis of the rotating disk 12 passes through the center of the second guide groove 11. When the drive frame 9 moves, the second protruding rod 10 can drive the rotating disk 12 to adjust the angle, so that the drive frame 9 can drive the rotating disk 12 and the cylinder frame 19 to produce corresponding angular offsets through the second protruding rod 10. Since the mounting ring at the bottom of the cylinder frame 19 is embedded in the top of the fixed bottom cover 23, the side wall of the base 1 is lower. A fixed bottom cover 23 is fixedly embedded in the base 1, and the fixed bottom cover 23 and the cylinder frame 19 are coaxially arranged. An airflow guide port for air intake is opened on the side of the cylinder frame 19 away from the base 1. A limiting arc frame 21 and a contact arc frame 22 are coaxially fixedly connected from top to bottom in the annular groove at the top of the fixed bottom cover 23. Two limiting arc frames 21 are concentrically arranged at the annular groove opening of the fixed bottom cover 23. The contact arc frame 22 is located directly below the notch of the limiting arc frame 21, and both the contact arc frame 22 and the limiting arc frame 21 have guide slopes at their ends. The contact arc frame 22 is located in the middle of the air intake of the base 1. At this time, the bottom of the cylinder frame 19 will rotate on the fixed bottom cover 23. The flow guiding mechanism 20 includes a flow divider 20. 01. Diverter plates 2001 are evenly distributed on the cylinder frame 19. Diverter plates 2001 can be opened at specific positions for automatic ventilation. A convex shaft is provided in the middle of the end face of the diverter plate 2001. The convex shafts at both the upper and lower ends of the diverter plate 2001 are rotatably embedded in the cylinder frame 19. A reset block 2002 and an adjusting block 2003 are fixedly installed from top to bottom at the convex shaft at the lower part of the diverter plate 2001. The convex shaft at the lower part of the diverter plate 2001 is fixedly installed through the middle axis of the reset block 2002. The two ends of the reset block 2002 are provided with symmetrical inclined surfaces. Moreover, the movement path of the reset block 2002 is between two concentric limiting arc frames 21. The reset block 2002 moves towards the limiting arc frame 21. When the limiting arc frame 21 moves, the rotation angle can be restored; the adjusting block 2003 is set below the limiting arc frame 21, and the moving path of the adjusting block 2003 is provided with the abutting arc frame 22. When the adjusting block 2003 moves towards the abutting arc frame 22, it will be blocked and thus generate a corresponding deflection. At this time, the cylinder frame 19 will drive the diverter plate 2001 to rotate synchronously. When the adjusting block 2003 and the abutting arc frame 22 come into contact, the adjusting block 2003 will drive the diverter plate 2001 to deflect at an angle, so that the exhaust port of the cylinder frame 19 opens. When the reset block 2002 enters between the limiting arc frames 21, the diverter plate 2001 will reset and rotate. At this time, the exhaust port at the corresponding position of the cylinder frame 19 will close.

[0045] Working principle: When using this small wind turbine, first refer to... Figures 1-15The user installs the base 1 onto the external tower using bolts. External wind power drives the impeller frame 3 to rotate, which in turn drives the generator 2 to begin generating wind power. When the wind direction changes, the wind force pushes the wind vane 4 to rotate at a corresponding angle. The two wind vanes 4 are used to detect wind directions in different directions. The wind vane 4, through the connecting frame 5, drives the first protruding rod 6 to deflect along the first guide groove 7. The first protruding rod 6 then drives the drive frame 9 to rotate synchronously through the insert rod 8. The drive frame 9 then moves on the base 1, causing the cleaning rod 13 to move synchronously. The cleaning rod 13 will then move on the filter plate 1. The filter plate 14 moves along the side wall of the filter 4 for cleaning. At this time, the impurities on the filter plate 14 will fall into the box 15. Simultaneously, as the drive frame 9 moves, it will drive the second protruding rod 10 to rotate along the second guide groove 11. At this time, the second protruding rod 10 will drive the rotating disk 12 to rotate synchronously. The rotating disk 12 will drive the bottom cylinder frame 19 to rotate synchronously, so that the air inlet of the cylinder frame 19 can be adjusted according to the wind direction, so that the outside wind can fully enter the cylinder frame 19. During the rotation of the cylinder frame 19, the cylinder frame 19 will drive the diverter plate 2001 to rotate synchronously. When the reset block 2002 at the bottom of the diverter plate 2001 moves away from the two After the limiting arc frame 21 is in place, the position of the diverter plate 2001 will no longer be fixed. At the same time, the end of the adjusting block 2003 will contact the abutting arc frame 22. At this time, the abutting arc frame 22 will drive the adjusting block 2003 to rotate a certain angle. The adjusting block 2003 will drive the reset block 2002 and the diverter plate 2001 to rotate synchronously, so that the two ends of the reset block 2002 abut against the inner wall of the annular groove of the fixed bottom cover 23. At the same time, the diverter plate 2001 will be offset. Since the offset diverter plate 2001 is facing the air inlet of the base 1, the airflow in the cylinder frame 19 can enter the base 1 through the opened diverter plate 2001. After the airflow passes through the filter plate 14, it is directed towards the air inlet of the base 1. The appliance 2 is cooled down. The bottom of the base 1 is provided with a through hole. When the reset block 2002 re-enters between the two limit arc frames 21, the adjusting block 2003 will move away from the contact arc frame 22. The reset block 2002 will drive the adjusting block 2003 and the diverter plate 2001 to reset and rotate, so that the deflection vent formed by the diverter plate 2001 is closed. When the user performs regular maintenance on the generator, pull the lever at the end of the locking head 17, so that the locking head 17 moves into the storage rack 18. At this time, the locking head 17 no longer supports and locks the push block 16. At this time, the box 15 and the filter plate 14 slide out of the base 1 under their own weight.

[0046] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A small wind turbine generator, comprising: The base (1) is fixedly mounted on the tower by bolts on the bottom surface; characterized in that it further includes: a generator (2) is fixedly installed inside the base (1), and an impeller frame (3) is fixedly connected to the top of the drive shaft of the generator (2). The impeller frame (3) drives the generator (2) to run under the push of wind force. A connecting frame (5) is rotatably installed through the top of both sides of the base (1), and a wind vane (4) is fixedly connected to the top of the connecting frame (5). A cylinder frame (19) is rotatably embedded on both sides of the base (1). An angle transmission module is movably connected to the bottom of the connecting frame (5). The connecting frame (5) drives the cylinder frame (19) to rotate toward the corresponding wind direction through the angle transmission module. The outer edge of the tube frame (19) is rotatably equipped with a flow guide mechanism (20) distributed at equal angles. The tube frame (19) drives the flow guide mechanism (20) to open when it is facing the air inlet of the base (1) through its own rotation. The top of the base (1) is provided with two sets of symmetrically distributed first guide grooves (7) and second guide grooves (11), and the second guide groove (11) is closer to the axis of the base (1) than the first guide groove (7). The radius of the first guide groove (7) and the radius of the second guide groove (11) are the same, and the centers of the first guide groove (7) and the second guide groove (11) are on the same horizontal line. The generator (2) is provided with symmetrically distributed filter plates (14) on both sides. The filter plates (14) are used to block dust and other impurities in the airflow. The outer wall of the filter plate (14) is slidably fitted and embedded in the inner wall of the base (1). The angle transmission module includes a drive frame (9) that is slidably mounted on the inner wall of the base (1). The drive frame (9) has a "T" shaped structure, and a rod (8) is slidably inserted into the mounting groove at the end of the drive frame (9). The rod (8) is movably mounted inside the base (1), and a first protruding rod (6) is vertically fixedly connected to the top of the end of the rod (8) away from the drive frame (9). The top of the first protruding rod (6) is slidably inserted into the first guide groove (7), and the middle part of the first protruding rod (6) is rotatably inserted through the bottom of the connecting frame (5). The rotation axis of the connecting frame (5) is on the center of the first guide groove (7), so that the connecting frame (5) can drive the first protruding rod (6) to rotate along the first guide groove (7). The angle transmission module also includes a second protruding rod (10) that is slidably disposed in the through groove of the drive frame (9), and the top of the second protruding rod (10) is slidably embedded in the second guide groove (11). The bottom of the second protruding rod (10) is vertically fixedly connected to the top edge of the rotating disk (12), and the rotating disk (12) is rotatably embedded in the inner wall of the base (1). The axis of the rotating disk (12) passes through the center of the second guide groove (11). When the drive frame (9) moves, the second protruding rod (10) can drive the rotating disk (12) to adjust the angle. The mounting ring at the bottom of the cylinder frame (19) is embedded in the top of the fixed bottom cover (23). The fixed bottom cover (23) is fixedly embedded in the lower part of the side wall of the base (1). The fixed bottom cover (23) and the cylinder frame (19) are coaxially arranged. An airflow guide port for air intake is opened on the side of the cylinder frame (19) away from the base (1). The limiting arc frame (21) and the abutting arc frame (22) are coaxially fixedly connected in the annular groove at the top of the fixed bottom cover (23) from top to bottom. Two limiting arc frames (21) are concentrically arranged at the annular groove of the fixed bottom cover (23). The abutting arc frame (22) is located directly below the notch of the limiting arc frame (21). The ends of the abutting arc frame (22) and the limiting arc frame (21) are both provided with guide slopes. The abutting arc frame (22) is located in the middle of the air inlet of the base (1).

2. A small wind turbine generator according to claim 1, characterized in that: A rotating disk (12) is coaxially fixed at the top center of the cylinder frame (19), and the cylinder frame (19) is rotatably embedded in the air inlet on the side wall of the base (1). A cleaning rod (13) is provided between the cylinder frame (19) and the filter plate (14). The top of the cleaning rod (13) is fixedly connected to the side of the drive frame (9) away from the insertion rod (8), and the cleaning rod (13) is symmetrically distributed on the side wall of the filter plate (14). When the drive frame (9) moves, it can drive the cleaning rod (13) to perform dust cleaning operation synchronously. The bottom of the cleaning rod (13) is set towards the opening at the top of the box body (15).

3. A small wind turbine generator according to claim 1, characterized in that: The flow guiding mechanism (20) includes a flow divider plate (2001), which is evenly distributed on the cylinder frame (19). The flow divider plate (2001) can be opened at a specific position for automatic ventilation. A convex shaft is provided in the middle of the end face of the flow divider plate (2001). The convex shafts at both the upper and lower ends of the flow divider plate (2001) are rotatably embedded on the cylinder frame (19). A reset block (2002) and an adjusting block (2003) are fixedly installed from top to bottom at the convex shaft at the lower part of the diverter plate (2001). The convex shaft at the lower part of the diverter plate (2001) is fixedly installed through the central axis of the reset block (2002). Symmetrical inclined surfaces are provided at both ends of the reset block (2002). The movement path of the reset block (2002) is between two concentric limiting arc frames (21). When the reset block (2002) moves toward the limiting arc frame (21), the rotation angle can be restored. The adjusting block (2003) is located below the limiting arc frame (21). The moving path of the adjusting block (2003) is provided with an abutting arc frame (22). When the adjusting block (2003) moves toward the abutting arc frame (22), it will be blocked, thus producing a corresponding deflection.

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