Self-regulating wide-speed range wind energy collection device

Abstract

The present invention provides a self-regulating wide-speed range wind energy collection device, comprising a mounting seat, a drive shaft, a power generation mechanism and a toggle mechanism. The mounting seat has a receiving cavity. The drive shaft is rotatably arranged on the mounting seat and passes through the receiving cavity, and the end of the drive shaft extending out of the mounting seat is connected with a fan blade. There are multiple power generation mechanisms, each of which is arranged in the receiving cavity, and each of which is arranged at intervals along the axial direction of the drive shaft. There are multiple toggle mechanisms, each of which is arranged in the receiving cavity and is fixedly connected to the drive shaft. Each toggle mechanism corresponds to each power generation mechanism one by one, and each toggle mechanism has a toggle part. The toggle part in each toggle mechanism can be connected to the corresponding power generation mechanism after the drive shaft reaches the corresponding rotation speed to drive it to generate electricity. The self-regulating wide-speed range wind energy collection device provided by the present invention can adapt to a wider wind speed range, has strong adaptability, and can also improve the service life of the fan blades and other components.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind energy collection equipment, and in particular relates to a self-regulating wide-speed range wind energy collection device. Background Art

[0002] Environmental energy harvesting has the advantages of being convenient, sustainable, and green, and provides strong support for the coordinated promotion of "carbon reduction, pollution reduction, green expansion, and growth". Wind energy is one of the most abundant renewable energy sources in the natural environment, with little dependence on day and night, and can be continuously converted into electrical energy by wind energy harvesting devices.

[0003] In the prior art, natural wind is changeable, random, and difficult to predict, so the wind force received by the wind energy collection device varies at different times. When the wind speed is too fast, the rotation speed of the fan blades will increase, and when the wind speed is low, the rotation speed of the fan blades will also be small, or remain stationary. However, the wind energy collection device usually contains a power generation module, so there is a minimum wind speed when the fan blades are started. When the wind speed is lower than this, the fan blades will not rotate; at the same time, in order to avoid damage to the fan blades and overloading of the equipment, the rotation speed of the fan blades should not be too large. This results in the wind energy collection device being unable to adapt to a wider speed range and having poor adaptability. Summary of the invention

[0004] The embodiment of the present invention provides a self-regulating wide-speed range wind energy collection device, which aims to solve the problem of poor practicality of existing wind energy collection devices due to their inability to adapt to a wider speed range.

[0005] To achieve the above object, the technical solution adopted by the present invention is to provide a self-regulating wide-speed range wind energy collection device, comprising:

[0006] A mounting seat having a receiving cavity;

[0007] A drive shaft is rotatably disposed on the mounting seat and passes through the accommodating cavity, and an end of the drive shaft extending out of the mounting seat is connected to a fan blade;

[0008] A plurality of power generation mechanisms are provided, each of which is disposed in the accommodating cavity and is spaced apart along the axial direction of the driving shaft;

[0009] There are multiple toggle mechanisms, each of which is arranged in the accommodating cavity and fixedly connected to the driving shaft; each of the toggle mechanisms corresponds to each of the power generating mechanisms one by one, and each of the toggle mechanisms has a toggle part; the toggle part in each of the toggle mechanisms is used to be connected to the corresponding power generating mechanism after the driving shaft reaches a corresponding rotation speed, so as to drive it to generate electricity.

[0010] In a possible implementation, each of the power generation mechanisms includes at least two power generation components, each of the power generation components is arranged in a ring-shaped manner around the axis of the drive shaft, and each of the power generation components has a power connection portion that can be connected to the corresponding toggle portion.

[0011] In a possible implementation, each of the power generation components includes:

[0012] A fixed bottom plate, fixedly connected to the mounting seat;

[0013] A rotating shaft is rotatably connected to the fixed base plate, and the axis of the rotating shaft is arranged parallel to the axis of the driving shaft;

[0014] A turntable, coaxially arranged on the rotating shaft, wherein a plurality of permanent magnets are arranged on the turntable, and each of the permanent magnets is arranged in an annular manner around the rotating shaft;

[0015] Coils are arranged on the fixed bottom plate, and each of the coils corresponds to each of the permanent magnets;

[0016] A ratchet is coaxially arranged on the rotating shaft, and the one-way tooth surface of the ratchet serves as the power connection portion.

[0017] In a possible implementation manner, any two adjacent permanent magnets are arranged with opposite polarities at ends facing the coil.

[0018] In a possible implementation, a plurality of coils are provided, and the coils are arranged in a ring-shaped manner around the axis of the rotating shaft.

[0019] In a possible implementation, each of the toggle mechanisms includes:

[0020] A fixed plate, coaxially arranged on the driving shaft, wherein the outer edge of the fixed plate is provided with a plurality of open embedding grooves in an annular manner;

[0021] A plurality of claws are provided, each of which is disposed in each of the embedding grooves, one end of each of the claws is rotatably connected to a fixed shaft disposed in the corresponding embedding groove, and each of the claws is used to flip under the action of centrifugal force during the rotation of the drive shaft, so that the free end moves to the outside of the corresponding embedding groove and is dynamically connected to the corresponding power generation mechanism; the free end of the claw is the toggle portion;

[0022] There are multiple tension springs, each of which is set in each of the embedding grooves; one end of each tension spring is connected to a first limiting shaft set in the corresponding embedding groove, and the other end is connected to a second limiting shaft set on the corresponding claw. The tension spring is used to continuously pull the claw so that the claw maintains a tendency to flip into the embedding groove.

[0023] In a possible implementation, the fixing plate is an elliptical structure;

[0024] There are two embedding grooves, and the two embedding grooves are respectively located at two ends of the fixing plate along the long axis direction of the fixing plate.

[0025] In a possible implementation, the mounting base includes:

[0026] The housing has an inner cavity with one end being open;

[0027] The end cover is located at the open portion of the shell and is detachably connected to the shell. The end cover is provided with a transfer hole for the drive shaft to be rotatably connected and for the drive shaft to pass through.

[0028] In this implementation, the end of the drive shaft that extends out is connected to the fan blades, which can ensure that it rotates under the action of external wind force, and the multiple power generation mechanisms arranged in the mounting seat can correspond to the toggle mechanisms connected to the drive shaft, and each toggle mechanism can rotate with the drive shaft, and each toggle mechanism corresponds to a different rotation speed, that is, at a certain rotation speed of the drive shaft, one or more toggle mechanisms can respectively drive the corresponding power generation mechanisms through their respective toggle parts to achieve power generation. When the wind speed is low, a small number of toggle mechanisms drive the corresponding power generation mechanisms to work; and when the wind speed is high, a large number of toggle mechanisms drive the corresponding power generation mechanisms to work; thereby effectively adapting to a wider wind speed range and having strong adaptability. At the same time, this structure can provide more power generation mechanisms as resistance in the process of increasing wind speed, thereby effectively avoiding excessive wind speed, avoiding damage to the fan blades, and increasing the service life of the fan blades and other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of a self-regulating wide-speed range wind energy collection device provided by an embodiment of the present invention Figure 1 ;

[0030] Figure 2 A schematic diagram of the structure of a self-regulating wide-speed range wind energy collection device provided by an embodiment of the present invention Figure 2 (end caps hidden and housing partially cut away);

[0031] Figure 3 A schematic diagram of the structure of a power generation component of a self-regulating wide-speed range wind energy collection device provided by an embodiment of the present invention;

[0032] Figure 4 for Figure 3 The main structural diagram of the self-regulating wide-speed range wind energy collection device shown;

[0033] Figure 5 A schematic diagram of the exploded structure of the toggle mechanism of the self-regulating wide-speed range wind energy collection device provided by an embodiment of the present invention;

[0034] Description of reference numerals:

[0035] 10. Mounting seat; 11. Housing; 12. End cover; 13. Accommodating cavity;

[0036] 20. Drive shaft;

[0037] 30. Power generation mechanism; 31. Fixed bottom plate; 32. Rotating shaft; 33. Turntable; 34. Coil; 35. Ratchet; 36. Permanent magnet; 37. One-way tooth surface;

[0038] 40. Toggle mechanism; 41. Fixed plate; 42. Clamping claw; 43. Tension spring; 44. Fixed shaft; 45. First limiting shaft; 46. Second limiting shaft; 47. Mounting groove. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] Please also read Figure 1 and Figure 2 Now, the self-regulating wide-speed range wind energy collection device provided by the present invention is described. The self-regulating wide-speed range wind energy collection device comprises a mounting seat 10, a drive shaft 20, a power generation mechanism 30 and a toggle mechanism 40. The mounting seat 10 has a receiving cavity 13. The drive shaft 20 is rotatably arranged on the mounting seat 10 and passes through the receiving cavity 13, and the end of the drive shaft 20 extending from the mounting seat 10 is connected with a fan blade. There are multiple power generation mechanisms 30, each of which is arranged in the receiving cavity 13, and each of which is arranged at intervals along the axial direction of the drive shaft 20. There are multiple toggle mechanisms 40, each of which is arranged in the receiving cavity 13 and is fixedly connected to the drive shaft 20. Each toggle mechanism 40 corresponds to each power generation mechanism 30 one by one, and each toggle mechanism 40 has a toggle part. The toggle part in each toggle mechanism 40 can be connected to the corresponding power generation mechanism 30 after the drive shaft 20 reaches the corresponding rotation speed, so as to drive it to generate electricity.

[0041] Compared with the prior art, the self-regulating wide-range wind energy collection device provided in this embodiment has a fan blade connected to the end of the driving shaft 20, which can ensure rotation under the action of external wind force, and the multiple power generation mechanisms 30 arranged in the mounting seat 10 can correspond to the toggle mechanisms 40 connected to the driving shaft 20, each toggle mechanism 40 can rotate with the driving shaft 20, and each toggle mechanism 40 corresponds to a different rotation speed, that is, at a certain rotation speed of the driving shaft 20, one or more toggle mechanisms 40 can respectively drive the corresponding power generation mechanisms 30 through their respective toggle parts to achieve power generation. When the wind speed is low, a small number of toggle mechanisms 40 drive the corresponding power generation mechanisms 30 to work; and when the wind speed is high, a large number of toggle mechanisms 40 drive the corresponding power generation mechanisms 30 to work; thereby effectively adapting to a wider wind speed range and having strong adaptability. At the same time, this structure can provide more power generation mechanisms 30 as resistance in the process of increasing wind speed, thereby effectively avoiding excessive wind speed, avoiding damage to the fan blades, and improving the service life of the fan blades and other components.

[0042] In some embodiments, the power generation mechanism 30 may be implemented as follows: Figure 2 See the structure shown. Figure 2 Each power generation mechanism 30 includes at least two power generation components, each of which is arranged in a ring-shaped manner around the axis of the drive shaft 20, and each of the power generation components has a power connection part that can be connected to the corresponding toggle part.

[0043] Each power generation mechanism 30 includes multiple power generation components, which can ensure that each power generation mechanism 30 is divided into multiple independent power generation components as power generation units, and further ensure that after the corresponding toggle part on the toggle mechanism 40 is toggled, it can independently perform power generation work, thereby ensuring power generation efficiency and strong practicality.

[0044] In some embodiments, the above-mentioned power generation component can be used as follows Figure 3 and Figure 4 See the structure shown. Figure 3 and Figure 4 Each power generation component includes a fixed base plate 31, a rotating shaft 32, a turntable 33, a coil 34 and a ratchet 35. The fixed base plate 31 is fixedly connected to the mounting base 10. The rotating shaft 32 is rotatably arranged on the fixed base plate 31, and the axis of the rotating shaft 32 is arranged parallel to the axis of the driving shaft 20. The turntable 33 is coaxially arranged on the rotating shaft 32, and a plurality of permanent magnets 36 are arranged on the turntable 33, and each permanent magnet 36 is arranged in a ring-shaped interval around the rotating shaft 32. The coil 34 is arranged on the fixed base plate 31, and each coil 34 corresponds to each permanent magnet 36. The ratchet 35 is coaxially arranged on the rotating shaft 32, and the unidirectional tooth surface 37 of the ratchet 35 is a power connection part.

[0045] The fixed bottom plate 31 can ensure the fixed connection with the mounting base 10. The ratchet 35 has an annular one-way tooth surface 37, which will form a tooth front corresponding to the toggle part, making it easier to form a power connection with the toggle part. The rotating shaft 32 can rotate synchronously under the drive of the ratchet 35, thereby driving the turntable 33 to rotate. The turntable 33 also drives the permanent magnets 36 to rotate, which can ensure that the coil 34 cuts the magnetic flux lines, thereby realizing power generation. Its structure is simple and easy to control. At the same time, the action of the coil 34 and the permanent magnet will produce a certain electromagnetic damping, thereby being able to give the drive shaft 20 a reverse force. With the operation of more power generation components, the speed of the drive shaft 20 can be effectively prevented from being too high, thereby effectively protecting the fan blades and other components.

[0046] It should be noted that electromagnetic induction and the coil 34 cutting the magnetic flux lines to generate electricity are existing technologies and are well known to those skilled in the art, and will not be described in detail here.

[0047] In this embodiment, two fixed base plates 31 may be provided, and the two fixed base plates 31 are arranged in parallel and at intervals. The two ends of the rotating shaft 32 can be rotatably set on the two fixed base plates 31 respectively to ensure the stability of the rotation of the rotating shaft 32, and the turntable 33, the coil 34 and the ratchet 35 can all be located between the two fixed base plates 31.

[0048] A specific implementation of each power generation component in each power generation mechanism 30 is that the one-way tooth surface 37 on the outer edge of each ratchet 35 is annularly arranged, and the base circle where each tooth tip is located is set as the tooth tip circle, and the base circle where each tooth bottom is located is set as the tooth bottom circle. In the multiple power generation components corresponding to each power generation mechanism 30, the spacing distance between the tooth bottom circle axis of each ratchet 35 and the axis of the drive shaft 20 is equal, and the tooth bottom circle diameters of each ratchet 35 are set equally, and the tooth top circle diameters of each ratchet 35 increase successively.

[0049] Multiple power generation mechanisms 30 cooperate with multiple toggle mechanisms 40 to correspond to different wind speeds, or to different rotational speeds of the drive shaft 20, and each power generation mechanism 30 further divides or grades the wind speed through multiple power generation components to ensure that the toggle part in each toggle mechanism 40 can be dynamically connected to one of the power generation components, or dynamically connected to multiple power generation components at the same time, further ensuring power generation under smaller wind forces, improving the range of adaptable wind speeds, and at the same time, the induction of wind force corresponding to the power generation work is more sensitive.

[0050] In some embodiments, the permanent magnet 36 may be Figure 3 See the structure shown. Figure 3Any two adjacent permanent magnets 36 are arranged with opposite polarities toward the ends of the coil 34. This structure can ensure that there is a repulsive force between the adjacent permanent magnets, and can ensure interaction with the coil 34 after rotation, enhance electromagnetic induction, and ensure efficient generation of electrical energy.

[0051] In some embodiments, the coil 34 may be formed as follows: Figure 3 See the structure shown. Figure 3 There are multiple coils 34, and each coil 34 is arranged in a ring-shaped interval around the axis of the rotating shaft 32. The arrangement of multiple coils 34 can ensure that each coil 34 can independently sense the magnetic field changes caused by the movement of the permanent magnet and independently cut the magnetic flux lines, thereby ensuring the improvement of power generation efficiency.

[0052] In some embodiments, the above-mentioned toggle mechanism 40 can be used as follows Figure 5 See the structure shown. Figure 5 Each toggle mechanism 40 includes a fixed disk 41, a claw 42 and a tension spring 43. The fixed disk 41 is coaxially arranged on the drive shaft 20, and a plurality of open mounting grooves 47 are provided in an annular shape on the outer edge of the fixed disk 41. A plurality of claws 42 are provided, and each claw 42 is provided in each mounting groove 47 one by one. One end of each claw 42 is rotatably connected to a fixed shaft 44 provided in a corresponding mounting groove 47. Each claw 42 can be turned over under the action of centrifugal force during the rotation of the drive shaft 20, so that the free end moves to the outside of the corresponding mounting groove 47 and is dynamically connected to the corresponding power generation mechanism 30. The free end of the claw 42 is a toggle portion. A plurality of tension springs 43 are provided, and each tension spring 43 is provided in each mounting groove 47 one by one. One end of each tension spring 43 is connected to a first limiting shaft 45 disposed in the corresponding embedding groove 47 , and the other end is connected to a second limiting shaft 46 disposed on the corresponding claw 42 . The tension spring 43 can continuously pull the claw 42 so that the claw 42 maintains a tendency to flip into the embedding groove 47 .

[0053] As the fixed plate 41 rotates with the drive shaft 20, the claw 42 is gradually turned outward by the centrifugal force, and in the process is also subjected to the tension of the tension spring 43, until the length direction of the claw 42 is in the same direction as the radial direction of the drive shaft 20. After the claw 42 moves to the outside of the embedding groove 47, it will serve as a toggle part to form a power connection with the one-way tooth surface 37, and then continuously toggle the ratchet wheel 35 to rotate, so as to drive the power generation component.

[0054] It should be noted that the elastic force of each tension spring 43 in each toggle mechanism 40 is the same, but the elastic force of the tension spring 43 corresponding to each toggle mechanism 40 gradually increases. For example, three toggle mechanisms 40 are respectively set as the first toggle mechanism, the second toggle mechanism, and the third toggle mechanism. The tension spring 43 in the first toggle mechanism is the first tension spring, the tension spring 43 in the second toggle mechanism is the second tension spring, and the tension spring 43 in the third toggle mechanism is the third tension spring, and the elastic force of the first tension spring, the second tension spring, and the third tension spring gradually increases. Therefore, during the low speed of the drive shaft 20, only the claw 42 in the first toggle mechanism turns outward to drive the corresponding power generation component, while the claw 42 in the second toggle mechanism and the third toggle mechanism are subjected to a large tension of the tension spring 43 and still stay in their respective embedding grooves 47. As the speed of the drive shaft 20 increases, the claw 42 in the second toggle mechanism turns to the outside to drive the corresponding power generation component, and at this time, the claw 42 in the first toggle mechanism is also in a working state. As the rotation speed of the driving shaft 20 further increases, the claw 42 in the third toggle mechanism will also be flipped to the outside due to the centrifugal force to drive the corresponding power generation component. At this time, the first toggle mechanism, the second toggle mechanism and the third toggle mechanism are all working.

[0055] It should be noted that each claw 42 has a maximum flip angle after flipping outward, that is, when the length direction of the claw 42 is set in the same direction as the radial direction of the drive shaft 20, there is a side wall in the mounting groove 47 to limit the claw 42 to abut against it, so as to prevent the claw 42 from pitching too much. The end of each claw 42 gradually moves outward, that is, the end of the claw 42 gradually approaches the tooth bottom circle, so each claw 42 will preferentially contact the unidirectional tooth surface 37 with a large tooth top circle, and then preferentially drive the power generation component with a large tooth top circle, and gradually drive other power generation components as the speed of the drive shaft 20 gradually increases.

[0056] In some embodiments, the fixing plate 41 may be Figure 5 See the structure shown. Figure 5 The fixed plate 41 has an elliptical shape.

[0057] There are two embedding grooves 47, which are respectively located at both ends of the fixing plate 41 along the long axis direction of the fixing plate 41. This structure can reduce the weight of the fixing plate 41, thereby reducing the load on the drive shaft 20, further ensuring adaptation to lower wind speeds and enhancing adaptability.

[0058] In some embodiments, the mounting base 10 may be used as follows: Figure 1 and Figure 2 See the structure shown. Figure 1 and Figure 2The mounting base 10 includes a housing 11 and an end cover 12. The housing 11 has an inner cavity with one end being open. The end cover 12 is located at the open end of the housing 11 and is detachably connected to the housing 11. The end cover 12 is provided with a transfer hole for the drive shaft 20 to be rotatably connected and for the drive shaft 20 to pass through. The detachable connection between the housing 11 and the end cover 12 can ensure the disassembly, assembly and maintenance of the internal components of the accommodating cavity 13, and has a simple structure and strong practicality.

[0059] It should be noted that the mounting base 10 may be a cylindrical structure, and the end cover 12 and the housing 11 may be connected by bolts.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-regulating wide-speed range wind energy collection device, characterized in that: include: A mounting seat having a receiving cavity; A drive shaft is rotatably disposed on the mounting seat and passes through the accommodating cavity, and an end of the drive shaft extending out of the mounting seat is connected to a fan blade; A plurality of power generation mechanisms are provided, each of which is disposed in the accommodating cavity and is spaced apart along the axial direction of the driving shaft; There are multiple toggle mechanisms, each of which is arranged in the accommodating cavity and fixedly connected to the driving shaft; each of the toggle mechanisms corresponds to each of the power generation mechanisms one by one, and each of the toggle mechanisms has a toggle portion; the toggle portion in each of the toggle mechanisms is used to be connected to the corresponding power generation mechanism after the driving shaft reaches a corresponding rotation speed, so as to drive it to generate electricity; wherein each of the toggle mechanisms comprises a fixed disk, a claw and a tension spring; the fixed disk is coaxially arranged on the driving shaft, and a plurality of open-set embedding grooves are provided in an annular manner on the outer edge of the fixed disk; a plurality of claws are provided, each of the claws is arranged in each of the embedding grooves one by one, one end of each of the claws is rotatably connected to a fixed shaft arranged in the corresponding embedding groove, and each of the claws is used to flip under the action of centrifugal force during the rotation of the driving shaft, so that the free end moves to the outside of the corresponding embedding groove and is dynamically connected to the corresponding power generating mechanism; the free end of the claw is the toggle portion; a plurality of tension springs are provided, each of the tension springs is arranged in each of the embedding grooves one by one; one end of each of the tension springs is connected to a first limiting shaft arranged in the corresponding embedding groove, and the other end is connected to a second limiting shaft arranged on the corresponding claw, and the tension spring is used to continuously pull the claw so that the claw maintains a tendency to flip into the embedding groove.

2. The self-regulating wide-speed range wind energy collection device according to claim 1, characterized in that: Each of the power generation mechanisms includes at least two power generation components, and the power generation components are arranged in a ring-shaped manner around the axis of the driving shaft. Each of the power generation components has a power connection part that can be connected to the corresponding toggle part.

3. The self-regulating wide-speed range wind energy collection device according to claim 2, characterized in that: Each of the power generation components comprises: A fixed bottom plate, fixedly connected to the mounting seat; A rotating shaft is rotatably connected to the fixed base plate, and the axis of the rotating shaft is arranged parallel to the axis of the driving shaft; A turntable, coaxially arranged on the rotating shaft, wherein a plurality of permanent magnets are arranged on the turntable, and each of the permanent magnets is arranged in an annular manner around the rotating shaft; Coils are arranged on the fixed bottom plate, and each of the coils corresponds to each of the permanent magnets; A ratchet is coaxially arranged on the rotating shaft, and the one-way tooth surface of the ratchet serves as the power connection portion.

4. The self-regulating wide-speed range wind energy collection device according to claim 3, characterized in that: Any two adjacent permanent magnets are arranged with opposite polarities at the ends facing the coil.

5. The self-regulating wide-speed range wind energy collection device according to claim 4, characterized in that: There are a plurality of coils, and each coil is arranged at intervals around the axis of the rotating shaft.

6. The self-regulating wide-speed range wind energy collection device according to claim 1, characterized in that: The fixed plate is an elliptical structure; There are two embedding grooves, and the two embedding grooves are respectively located at two ends of the fixing plate along the long axis direction of the fixing plate.

7. The self-regulating wide-speed range wind energy collection device according to claim 1, characterized in that: The mounting base comprises: The housing has an inner cavity with one end being open; The end cover is located at the open portion of the shell and is detachably connected to the shell. The end cover is provided with a transfer hole for the drive shaft to be rotatably connected and for the drive shaft to pass through.

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