Bumping energy collection power generation system

Abstract

The invention belongs to the technical field of vehicle energy recovery, and mainly relates to a bumping energy collection power generation system which comprises an energy conversion device, a power generator and a storage capacitor. The energy conversion device comprises a shell, a sliding part and a hydraulic motor, pressure media circulate in the shell, the sliding part and the hydraulic motor, the shell is provided with a first cavity and a second cavity, the two ends of the sliding part slide in the first cavity and the second cavity respectively, and the sliding part is provided with an inflow cavity and an outflow cavity. The inflow cavity and the outflow cavity are communicated with the first cavity and the second cavity through one-way valves respectively, and the two ends of the hydraulic motor are connected with the inflow cavity and the outflow cavity through a backflow pipeline and a power pipeline respectively. An output shaft of the hydraulic motor is connected with a generator, and the generator is electrically connected with a storage capacitor. Vibration energy in the upward direction and the downward direction can be collected for power generation, the structure is simple, and installation is not limited by space.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle energy recovery, and mainly relates to a bump energy collection and power generation system. Background Art

[0002] Trucks often encounter bumpy roads due to poor road conditions. To reduce vibration, minimize cargo damage, and improve ride comfort, truck suspensions typically use leaf springs. However, with energy consumption decreasing and awareness of energy conservation and emission reduction increasing, engineers are looking to harness the up-and-down vibrations of vehicles during travel.

[0003] Based on the above problems, the patent application document with application number 201720160826.3 discloses a charging device for absorbing bump energy for electric vehicles, including a shock-absorbing hydraulic oil cylinder arranged under the chassis of the electric vehicle, one end of the shock-absorbing hydraulic oil cylinder is connected to the wheel swing arm through the wheel swing arm fixing hole, and the other end is connected to the frame through the frame fixing hole. An input one-way check valve and an output one-way check valve are provided on the shock-absorbing hydraulic oil cylinder, the output one-way check valve is connected to the oil outlet pipe, and the input one-way check valve is connected to the oil inlet pipe through the input multi-cylinder distribution The oil outlet of the hydraulic rotary motor is connected to the hydraulic oil tank, and the oil return pipe is connected to the hydraulic oil tank.

[0004] Since the above-mentioned charging device for absorbing bump energy utilizes the shock-absorbing hydraulic cylinder under the chassis of the electric vehicle to circulate hydraulic oil, thereby driving the generator to generate rotational power, however, due to the structural and functional limitations of the shock-absorbing hydraulic cylinder, the shock-absorbing hydraulic cylinder can only recover energy in one vibration direction, while the energy in the other vibration direction can only be wasted and cannot be recovered. Summary of the Invention

[0005] In order to solve the above problems, an embodiment of the present invention provides a turbulence energy collection and power generation system, which achieves the purpose of solving the problems raised in the background technology.

[0006] In order to achieve the above objectives, the embodiments of the present invention specifically adopt the following technical solutions: A vibration energy collection and power generation system is installed on a bearing base, to which a swinging member capable of swinging due to vibration is connected, comprising an energy conversion device, a generator and a storage capacitor; The energy conversion device includes a housing, a sliding member, and a hydraulic motor. A pressure medium flows inside the housing, the sliding member, and the hydraulic motor. The housing has a first chamber and a second chamber. The two ends of the sliding member slide in the first chamber and the second chamber respectively. The sliding member is provided with an inflow chamber and an outflow chamber. The inflow chamber and the outflow chamber are connected to the first chamber and the second chamber respectively through a one-way valve. The two ends of the hydraulic motor are connected to the inflow chamber and the outflow chamber respectively through a return line and a power line. The output shaft of the hydraulic motor is connected to a generator, and the generator is electrically connected to a capacitor.

[0007] The present invention utilizes a sliding member to slide in the first cavity and the second cavity of the shell, so that the first cavity and the second cavity produce equal volume changes to achieve energy recovery in the upward and downward vibration directions, and thereby drive the hydraulic motor to generate rotational kinetic energy, and generate electricity through the generator.

[0008] In addition to the above effects, the present invention does not require an oil storage device because the volume changes of the first chamber and the second chamber are consistent, that is, the pressure medium flowing out of the energy conversion device and the pressure medium flowing into the energy conversion device are equal. Therefore, the present invention can make the pressure medium circulate in the entire system, thereby streamlining the structure and reducing the number of devices. Moreover, because the energy conversion device adopts a flowable pressure transmission medium, it can be transported by a pipeline similar to a high-pressure hose, thereby realizing that various devices can be installed in selectable positions without being limited by the limitations of the device structure.

[0009] Furthermore, the shell includes a first tube, a second tube and a connecting piece, the first tube and the second tube are consistent in shape and size, the openings of the first tube and the second tube are opposite to each other and are connected by the connecting piece to form a shell with a first cavity and a second cavity inside, the sliding piece includes a third tube and a partition, the two end boxes of the third tube extend into the first tube and the second tube and are in a sliding state, and the interior of the third tube is divided into an inflow cavity and an outflow cavity by the partition plate.

[0010] The energy conversion size can be changed by setting the inner diameters of the first and second cylinders. For example, by increasing the inner diameters of the first and second cylinders, the pressure medium can output a larger flow rate even in a smaller bump vibration range, thereby allowing the hydraulic motor to achieve a higher speed. This is suitable for energy recovery from automobile bumps on urban roads where road undulations do not occur frequently. Conversely, by reducing the inner diameters of the first and second cylinders, a larger flow rate will not be output even in larger bumps. This is suitable for energy recovery from automobiles on off-road sites with frequent and large bumps on the road, or energy recovery on the sea surface with large water wave fluctuations.

[0011] Furthermore, any one end of the shell and the sliding member are hinged to the bearing base and the swing member respectively.

[0012] Furthermore, a buffer pressure relief mechanism for temporarily storing pressure medium is provided on the power pipeline. When the pressure medium reserve is large, the buffer pressure relief mechanism directly delivers a portion of the pressure medium to the return pipeline.

[0013] Furthermore, the buffer pressure relief device includes an outer cylinder and an inner cylinder connected by a first elastic member. The outer cylinder and the inner cylinder are in sliding contact, and two storage chambers are formed between the outer cylinder and the inner cylinder. The outer cylinder is provided with an inflow hole and an outflow hole located on one side of the inner cylinder, which are connected to the power pipeline, and a leakage hole located on the other side of the inner cylinder, which is connected to the return pipeline. When the inner cylinder slides relative to the outer cylinder and the first elastic member stores energy, the leakage hole is connected to the inflow hole and the outflow hole.

[0014] The above structure provides a solution for limiting the generator speed when the sudden bumps and fluctuations are large and frequent. When the bumps and fluctuations are large, excessive medium flow will cause the generator to rotate too fast, but the buffer pressure relief device can temporarily store these pressure media and slowly release them for power generation. When the bumps and fluctuations are frequent, the buffer pressure relief device cannot buffer all of them, but opens the drain hole. Excessive pressure medium will be discharged from the drain hole into the return pipe and continue to circulate to ensure the continuity of energy collection.

[0015] Furthermore, the leakage hole is a long hole arranged along the height direction of the outer cylinder, and the long hole can automatically adjust the opening according to the energy storage size of the first elastic member, thereby forming adaptive adjustment.

[0016] Furthermore, the output end of the hydraulic motor is connected to the input end of the generator via a speed stabilizing transmission mechanism.

[0017] Although the above-mentioned buffer pressure relief device can prevent the generator speed from exceeding the rated speed, it is still difficult to make the generator rotate stably near the rated speed, and the power generation is not stable. Therefore, the present invention is also committed to solving the problem of how to quickly stabilize the generator within the rated speed range.

[0018] Furthermore, the steady-speed transmission mechanism includes a conical shaft and a spline shaft rotatably connected to the bearing shell, and a driven wheel is slidably connected to the spline shaft. The driven wheel is transmitted to the conical shaft and rotates with the conical shaft. The driven wheel slides to different positions of the spline shaft according to different rotation speeds. Either end of the conical shaft is connected to the output end of the hydraulic motor, and either end of the spline shaft is connected to the input end of the generator.

[0019] Furthermore, the driven wheel and the tapered shaft are driven by magnetic force.

[0020] Furthermore, the driven wheel has a sliding inner ring, a driven outer ring and a plurality of blades, the sliding inner ring is slidingly connected to the spline shaft, the surface of the tapered shaft and the surface of the driven outer ring are fixedly connected with magnets, wherein the magnetic poles of the magnets on the surface of the tapered shaft and the surface of the driven outer ring are opposite, the blades are respectively connected to the sliding inner ring and the driven outer ring, and the plurality of blades are arranged in a circular array between the sliding inner ring and the driven outer ring, and a second elastic member is connected to either end of the driven wheel and the spline shaft.

[0021] Furthermore, the output end of the hydraulic motor is connected to the speed-stabilizing transmission mechanism via a one-way bearing, and the tapered shaft is a solid metal shaft.

[0022] The solid metal shaft connected by a one-way bearing can maintain a certain amount of rotational kinetic energy when the vibration energy is weakened, thereby increasing the power generation and making the speed of the generator change smoothly, avoiding fatigue or damage caused by sudden changes in speed.

[0023] The beneficial effects of the embodiments of the present invention are: 1. The present invention can collect vibration energy in both the upward and downward directions and use it to generate electricity. By adjusting the cross-sectional sizes of the first cavity and the second cavity in the shell, energy amplification is achieved, thereby increasing the amount of power generation. In addition, due to the special sliding part setting of the present invention, the present invention does not require a separate pressure medium storage device to achieve the recycling of the pressure medium.

[0024] 2. The buffer pressure relief device of the present invention can discharge excess pressure medium from the leakage hole when the bumps are large or frequent. On the one hand, it ensures the recycling of the pressure medium. On the other hand, it limits the rotation speed of the generator to not exceed a certain speed limit, thereby ensuring the compatibility of the present invention with the generator and the service life of the generator.

[0025] 3. The steady-speed transmission mechanism of the present invention enables the generator to quickly reach the rated speed, and maintains the transfer of the generator within a certain range when the speed of the hydraulic motor changes, thereby ensuring the stability of the generated power and higher power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of Embodiment 1 of the present invention; Figure 2 This is a schematic structural diagram of an energy conversion device according to a first embodiment of the present invention (partial cross-section); Figure 3 It is a schematic diagram of the sliding member structure of the present invention; Figure 4 is a cross-sectional view of a sliding member of the present invention; Figure 5 This is a structural diagram of embodiment 2 of the present invention. Figure 6This is a schematic structural diagram of an energy conversion device according to a third embodiment of the present invention; Figure 7 It is a structural schematic diagram of the buffer pressure relief device of the present invention; Figure 8 A top view of a steady-speed transmission mechanism according to a fourth embodiment of the present invention; Figure 9 Schematic diagram of the driven wheel structure of the present invention; Figure 10 A cross-sectional view of the connection between the driven wheel and the spline shaft of the present invention; Figure 11 This is a schematic structural diagram of a tapered shaft according to a fourth embodiment of the present invention.

[0027] Figure 12 This is a schematic structural diagram of a tapered shaft according to a fifth embodiment of the present invention.

[0028] In the figure: 1. generator; 2. storage capacitor; 3. shell; 4. sliding member; 5. hydraulic motor; 6. first cylinder; 7. second cylinder; 8. connecting member; 9. first cavity; 10. second cavity; 11. third cylinder; 12. partition; 13. inflow cavity; 14. outflow cavity; 15. one-way valve; 16. connecting pipe; 17. return line; 18. power line; 19. outer cylinder; 20. inner cylinder; 21. inflow hole; 22. outflow hole; 23. leakage hole; 24. first elastic member; 25. load-bearing shell; 26. tapered shaft; 27. spline shaft; 28. universal joint; 29. driven wheel; 30. sliding inner ring; 31. driven outer ring; 32. fan blade; 33. second elastic member; 34. one-way bearing; 35. magnet. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Example

[0030] See also Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, an embodiment of the present invention discloses a bump energy collection and power generation system, which is installed on a supporting base. The supporting base is connected to a swinging member that can swing due to bump vibration. The supporting base can be a base on a car or on the sea surface. It is used to collect bump energy and realize energy conversion to generate electricity. Specifically, it includes an energy conversion device, a generator 1 and a storage capacitor 2; The energy conversion device includes a housing 3, a sliding member 4 and a hydraulic motor 5. A pressure medium circulates inside the housing 3, the sliding member 4 and the hydraulic motor 5. The pressure medium includes but is not limited to hydraulic oil, lubricating oil, water and other liquid media with pressure transmission function. The housing 3 includes a first cylinder 6, a second cylinder 7 and a connecting member 8. The materials of the first cylinder 6, the second cylinder 7 and the connecting member 8 include but are not limited to carbon steel, alloy steel, cast iron, aluminum alloy, and the contact surfaces are smooth. The first cylinder 6 and the second cylinder 7 are consistent in shape and size, and are both cylindrical bodies with one end open. The openings of the first cylinder 6 and the second cylinder 7 are opposite to each other and are connected by the connecting member 8 to form a straight cylinder. The space inside the first tube 6 is the first cavity 9, and the space inside the second tube 7 is the second cavity 10. The sliding member 4 includes a third tube 11 and a partition 12. The third tube 11 is a cylinder with closed ends. The two ends of the third tube 11 slide in the first cavity 9 of the first tube 6 and the second cavity 10 of the second tube 7 respectively. The sliding is sealed by a sliding sealing ring or by the dimensional tolerance between the third tube 11 and the first tube 6 and the second tube 7. The sliding of the third tube 11 makes the volume of the first cavity 9 and the second cavity 10 larger or smaller. A partition plate 12 is provided in the third tube 11. The interior of the third tube 11 is divided into an inflow cavity 13 and an outflow cavity 14 by the partition plate 12. The inflow chamber 13 and the outflow chamber 14 are both arranged along the length direction of the third tube 11. A one-way valve 15 is provided at both ends of the inflow chamber 13 and the outflow chamber 14. The one-way valves 15 at the same end of the inflow chamber 13 and the outflow chamber 14 are in opposite directions. The one-way valves 15 at both ends of the inflow chamber 13 and the outflow chamber 14 have opposite flow directions. For example, the one-way valves 15 at both ends of the inflow chamber 13 only allow the pressure medium to flow out of the inflow chamber 13, and the one-way valves 15 at both ends of the outflow chamber 14 only allow the pressure medium to flow into the outflow chamber 14. Therefore, when the sliding member 4 slides into the first tube 6, the pressure medium in the first chamber 9 is reduced in volume due to the reduction in volume of the first chamber 9. The first chamber 9 enters the outflow chamber 14 through the one-way valve 15, the volume of the second chamber 10 increases, and the pressure medium in the inflow chamber 13 flows into the second chamber 10. Because the volume changes of the first chamber 9 and the second chamber 10 are consistent, the inflow and outflow of the pressure medium are the same, so no additional pressure medium storage container is required. The inflow chamber 13 and the outflow chamber 14 are respectively provided with a connecting pipe 16, and the two connecting pipes 16 are respectively connected to the return line 17 and the power line 18. The return line 17 and the power line 18 are connected to the two ends of the hydraulic motor 5. The output shaft of the hydraulic motor 5 is connected to the generator 1, and the generator 1 is electrically connected to the storage capacitor 2.

[0031] Either end of the shell 3 is hinged to the bearing base and the other end is a free end, and the sliding member 4 is hinged to the swing member. Alternatively, either end of the shell 3 is hinged to the bearing base of the swing member and the other end is a free end, and the sliding member 4 is hinged to the bearing base.

[0032] When the present invention is used for collecting energy from automobile bumps, either end of the shell is hinged to the automobile chassis, and the sliding part is hinged to the automobile suspension; when the present invention is used for collecting wave energy on the sea surface, the shell is fixed to a base on the ocean surface, and the sliding part is hinged to a mechanism that fluctuates with the waves. When a spring is provided on either end of the shell 3 (no hinged lug) and the sliding part 4 of the present invention, it can also be used as an internal energy collection device for road speed bumps, for example, to replace the energy feedback shock absorber in the road speed bump energy collection device with application number CN202221385303.6, wherein the shell 3 is connected to the skateboard, and the sliding part is fixedly connected to the support plate or the mounting base.

[0033] The energy conversion size can be changed by setting the inner diameters of the first cylinder 6 and the second cylinder 7. For example, by increasing the inner diameters of the first cylinder 6 and the second cylinder 7, the pressure medium can output a larger flow rate even in a smaller bump vibration range, thereby allowing the hydraulic motor 5 to achieve a higher rotation speed. This is suitable for energy recovery from automobile bumps on urban roads where road undulations do not occur frequently. Conversely, by reducing the inner diameters of the first cylinder 6 and the second cylinder 7, a larger flow rate will not be output even in larger bumps. This is suitable for energy recovery from automobiles on off-road sites with frequent and large bumps on the road, or energy recovery on the sea surface with large water wave fluctuations. Example

[0034] For the generator 1, a rated speed is provided at the beginning of the design. It has a good power generation capacity within the rated speed range. When the speed is lower than the rated speed, some problems may be encountered. When the speed is higher than the rated speed, although more electricity can be generated, serious mechanical stress, overheating or other problems may not be received, thereby shortening the service life of the generator 1. Therefore, it is necessary to make the generator 1 operate within a limited range. Although there are some existing technologies that do not limit the speed and can generate electricity within various speed ranges, but the power generation capacity is different, it is not possible to expect every set of the present invention to match such a high-cost generator. Therefore, the purpose of the present invention is to adapt to more generator models and achieve better power generation effects.

[0035] like Figure 2 and Figure 7 As shown, this embodiment 1 is additionally provided with: a buffer pressure relief mechanism, which is connected to the power pipeline 18 for temporarily storing the pressure medium. The buffer pressure relief mechanism is also connected to the return pipeline 17, and when the pressure medium reserve is large, the pressure medium is directly transported to the return pipeline 17.

[0036] The buffer pressure relief device includes an outer cylinder 19 and an inner cylinder 20, both of which are made of metal materials. The outer cylinder 19 is a hollow cylindrical body, and the inner cylinder 20 is a cylindrical body opening downward. The outer cylinder 19 is in sliding contact with the inner cylinder 20, and an upper storage chamber and a lower storage chamber are formed between the outer cylinder 19 and the inner cylinder 20. The outer cylinder 19 is provided with an inflow hole 21 and an outflow hole 22 located on one side of the inner cylinder 20 and connected to the power pipeline 18, and a leakage hole 23 located on the other side of the inner cylinder 20 and connected to the return pipeline 17. In this embodiment, the inflow hole 21 and the outflow hole 22 are connected to the lower storage chamber, and the leakage hole 23 is connected to the upper storage chamber. The lower side of the inner cylinder 20 is connected to a first elastic member 24, which includes but is not limited to a tension spring. The lower end of the first elastic member 24 is connected to the bottom surface of the outer cylinder 19.

[0037] When the tension spring is in a natural state, the inner cylinder 20 is located at the lower part of the outer cylinder 19. When the bumps and fluctuations are large, excessive medium flow will cause the generator 1 to rotate too fast, but the buffer pressure relief device can temporarily store these pressure media. At this time, the inner cylinder 20 slides upward, the first elastic member 24 stretches and stores energy, and the lower storage chamber stores a part of the pressure medium, so that the pressure medium is discharged to the hydraulic motor 5 at a relatively small rate, so that the speed increase rate of the hydraulic motor 5 is slowed down. Although the speed of the generator 1 increases, it does not exceed its rated speed. During the bump interval, because there is no bump energy collection, the first elastic member 24 slowly returns to its original length, releases energy, and causes the pressure medium in the storage chamber to be transported to the hydraulic motor 5, which is urgently needed to maintain the rotation of the generator 1.

[0038] When the vehicle is bumpy and fluctuating frequently, the energy stored in the first elastic member 24 cannot be released in time due to the frequent fluctuations. In addition, the buffer space is limited, and the buffer pressure relief device cannot always buffer. At this time, the inner cylinder 20 continues to rise, so that the leakage hole 23 is connected to the lower storage chamber, that is, the leakage hole 23 is connected to the inflow hole 21 and the outflow hole 22. The excess pressure medium will be discharged from the leakage hole 23 into the return pipe 17 and continue to circulate. On the one hand, it limits the rotation speed of the generator 1, and on the other hand, it also ensures the continuity of energy collection.

[0039] The leakage hole 23 is a long hole arranged along the height direction of the outer cylinder 19. The long hole can automatically adjust its opening according to the energy storage size of the first elastic member 24, thereby forming adaptive adjustment. Example

[0040] This embodiment is basically the same as the second embodiment, and the similarities are not repeated here. The difference is that the housing 3 and the sliding member 4 of the energy conversion device are both arc-shaped.

[0041] like Figure 6As shown, compared with the straight cylindrical shell 3 and the straight cylindrical sliding member 4, this embodiment can use the rotating shaft in a bumpy state as the central axis to collect the energy of its arc deflection. Compared with the linear energy conversion device, the displacement is larger and more energy is collected. Example

[0042] Although the buffer pressure relief device of the above embodiment can make the rotation speed of the generator 1 not exceed a certain limit, it is still difficult to make the generator 1 rotate stably near the rated speed, and the power generation is not stable. Therefore, this embodiment is also committed to solving the problem of how to quickly stabilize the generator 1 within the rated speed range.

[0043] like Figure 8 、 Figure 9 、 Figure 10 and Figure 11 As shown, this embodiment aims to propose a steady-speed transmission mechanism connected between the hydraulic motor 5 and the generator 1, so that when the input speed variation range is large, the output speed has a smaller variation range, thereby making the output speed relatively stable and keeping the generator 1 near the rated speed to achieve maximum power generation efficiency.

[0044] The steady speed transmission mechanism includes a tapered shaft 26 and a spline shaft 27 rotatably connected to the bearing shell 25, and either end of the tapered shaft 26 is connected to the output end of the hydraulic motor 5. Figure 11As shown, magnets 35 are arranged on the side of the tapered shaft, and the spacing between the magnets 35 on the surface of the tapered shaft 26 is consistent, that is, there are more magnets 35 on the large diameter end of the tapered shaft 26 and fewer magnets 35 on the small diameter end. Either end of the spline shaft 27 is connected to the input end of the generator 1. The carrier shell 25 includes but is not limited to a closed box. In this embodiment, the upper side is hidden for the convenience of display. The tapered shaft 26 is rotatably connected between two opposite side walls of the carrier shell 25. The spline shaft 27 is obliquely connected to one side of the tapered shaft 26 through two universal joints 28. The distance between the spline shaft 27 and the busbar of the tapered shaft 26 is constant. A driven wheel 29 is slidably connected to the spline shaft 27. The driven wheel 29 comprises a sliding inner ring 30, a driven outer ring 31 and a plurality of blades 32. The sliding inner ring 30 is slidably connected to the spline shaft 27. The sliding connection is similar to the relative sliding between the spline shaft and the sliding key sleeve, that is, the sliding inner ring 30 can both drive the spline shaft 27 to rotate and slide relatively on the spline shaft 27. Magnets are arranged on the surface of the driven outer ring 31. The spacing between two adjacent magnets on the surface of the driven outer ring 31 is substantially equal to the spacing between the magnets on the tapered shaft 26. The magnetic poles of the magnets on the surface of the driven outer ring 31 are opposite to the magnetic poles of the magnets on the tapered shaft 26. The minimum distance between the magnets on the surface of the tapered shaft 26 and the magnets on the surface of the driven outer ring is 0.3 to 0.5mm, the driven outer ring 31 and the tapered shaft 26 are magnetically driven, the fan blades 32 are respectively connected to the sliding inner ring 30 and the driven outer ring 31, and a plurality of the fan blades 32 are arranged in a circumferential array between the sliding inner ring 30 and the driven outer ring 31. The driven wheel 29 is connected to either end of the spline shaft 27 with a second elastic member 33, and the second elastic member 33 includes but is not limited to a tension spring, a compression spring or other elements with uniform elasticity. When the second elastic member 33 is connected to the end of the spline shaft 27 close to the smaller diameter of the tapered shaft 26, the second elastic member 33 is a compression spring. When the second elastic member 33 is connected to the spline shaft 27 close to the smaller diameter end of the tapered shaft 26, the second elastic member 33 is a compression spring. When the member 33 is connected to the spline shaft 27 and is close to the end with the larger diameter of the tapered shaft 26, the second elastic member 33 is a tension spring. Because the cross section of the tapered shaft changes evenly, when in a stationary state, the driven wheel 29 is located at the end with the larger diameter of the tapered shaft 26, and the transmission ratio is relatively large. When the speed (angular velocity) of the tapered shaft 26 is small, the speed (angular velocity) of the driven wheel 29 will also be large, so that the speed of the generator 1 quickly approaches the rated speed. When the turbulence amplitude and frequency increase, the energy conversion device collects more energy, causing the speed of the tapered shaft 26 to accelerate (the speed change here mainly refers to the small energy collection due to the turbulence). When the first elastic member 24 does not store energy, the speed V1 of the hydraulic motor increases to the speed V2 when the bump energy is collected more, the first elastic member 24 stores more energy, and the drain hole 23 is already open. The speed of the hydraulic motor is accelerated). The speed of the driven wheel 29 is also accelerated. The driving force generated by the rotation of the fan blades 32 causes the driven wheel 29 to move toward the end with a smaller diameter of the tapered shaft 26 and to reach a new balance with the second elastic member 33. Even if the speed of the tapered shaft 26 increases, the speed of the driven wheel 29 also increases, but because the transmission ratio decreases, the speed of the driven wheel 29 is not too much. This increase can reduce the amplitude of generator 1's speed fluctuations, keeping the generator 1's speed within the rated speed range. When the speed of the tapered shaft 26 decreases, the speed of the driven pulley 29 in contact with it also decreases, no longer balancing with the second elastic member 33. As a result, it is driven by the second elastic member 33 toward the larger diameter end of the tapered shaft 26. This larger diameter end increases the transmission ratio. Therefore, although the speed of the driven pulley 29 decreases, the magnitude of the decrease is not significant. In other words, the driven pulley 29 slides to different positions on the spline shaft 27 according to the speed, keeping the generator as close to the rated speed range as possible.

[0045] As an illustration, this embodiment shows the structure of the steady-speed transmission mechanism in the simplest form, and the driven wheel 29 is not in contact with the tapered shaft 26. The driven wheel 29 tends to move on the spline shaft 27 due to the driving force generated by the rotation of the fan blades 32 during rotation, and generates a balance point with the second elastic member 33, so that the driven wheel 29 is stably at a certain position on the spline shaft 27. When the speed of the tapered shaft 26 changes, the balance point will also migrate, causing the driven wheel 29 to move, thereby reducing the speed change rate of the generator 1.

[0046] The output end of the hydraulic motor 5 is connected to the speed-stabilizing transmission mechanism via a one-way bearing 34 , and the tapered shaft 26 is a solid metal shaft.

[0047] The tapered shaft 26 has a large inertia and still maintains a certain amount of rotational kinetic energy when the vibration energy is weakened, thereby increasing the power generation and making the speed of the generator 1 drop steadily, avoiding fatigue or damage caused by sudden changes in speed. Example

[0048] This embodiment is basically the same as the fourth embodiment, and the similarities are not repeated here. The difference is that Figure 12 As shown, in this embodiment, the length of the magnets 35 is reduced, and the magnets 35 form a plurality of circular array magnet rings on the surface of the tapered shaft 26, so that the spacing between two adjacent magnets 35 in all magnet rings is equal, that is, the number of magnets 35 in the magnet rings gradually increases from the small diameter end to the large diameter end of the tapered shaft 26, so as to improve the situation in which the transmission ratio of the tapered shaft in the fourth embodiment varies too much and the number of transmission ratios is small, so that the generator speed changes more smoothly.

[0049] It should be noted that in the description of the present invention, terms such as "center, up, down, left, right, vertical, horizontal, inside, and outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for ease of description and are not intended to indicate or imply that the device or component described must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first, second, and third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "installed, connected, and connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus.

[0052] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A vibration energy collection and power generation system, installed on a bearing base, to which a swinging member capable of swinging due to vibration is connected, characterized in that: It includes an energy conversion device, a generator (1) and a storage capacitor (2); The energy conversion device comprises a housing (3), a sliding member (4) and a hydraulic motor (5), wherein a pressure medium flows inside the housing (3), the sliding member (4) and the hydraulic motor (5), wherein the housing (3) has a first chamber (9) and a second chamber (10), wherein two ends of the sliding member (4) slide in the first chamber (9) and the second chamber (10), respectively, and an inflow chamber (13) and an outflow chamber (14) are provided on the sliding member (4), wherein the inflow chamber (13) and the outflow chamber (14) are connected to the first chamber (9) and the second chamber (10) via a one-way valve (15), respectively, and wherein two ends of the hydraulic motor (5) are connected to the inflow chamber (13) and the outflow chamber (14) via a return line (17) and a power line (18), respectively. The output shaft of the hydraulic motor (5) is connected to a generator (1), and the generator (1) is electrically connected to a capacitor (2).

2. The turbulence energy collection and power generation system according to claim 1 is characterized in that: The shell (3) includes a first tube (6), a second tube (7) and a connecting member (8). The first tube (6) and the second tube (7) are of the same shape and size. The openings of the first tube (6) and the second tube (7) are opposite to each other and are connected via the connecting member (8) to form a shell having a first cavity (9) and a second cavity (10) inside. The sliding member (4) includes a third tube (11) and a partition (12). The two end boxes of the third tube (11) extend into the first tube (6) and the second tube (7) and are in a sliding state. The interior of the third tube (11) is divided into an inflow cavity (13) and an outflow cavity (14) via the partition (12).

3. The turbulence energy collection and power generation system according to claim 2 is characterized in that: Any one end of the housing (3) and the sliding member (4) are hinged to the bearing base and the swing member respectively.

4. The turbulence energy collection and power generation system according to claim 1, characterized in that: The power pipeline (18) is provided with a buffer pressure relief mechanism for temporarily storing the pressure medium. When the pressure medium storage volume is large, the buffer pressure relief mechanism directly delivers a portion of the pressure medium to the return pipeline (17).

5. The turbulence energy collection and power generation system according to claim 4 is characterized in that: The buffer pressure relief device comprises an outer cylinder (19) and an inner cylinder (20) connected via a first elastic member (24). The outer cylinder (19) and the inner cylinder (20) are in sliding contact with each other, and two storage chambers are formed between the outer cylinder (19) and the inner cylinder (20). The outer cylinder (19) is provided with an inflow hole (21) and an outflow hole (22) located on one side of the inner cylinder (20) and connected to the power pipeline (18), and a leakage hole (23) located on the other side of the inner cylinder (20) and connected to the return pipeline (17). When the inner cylinder (20) slides relative to the outer cylinder (19) and the first elastic member (24) stores energy, the leakage hole (23) is connected to the inflow hole (21) and the outflow hole (22).

6. The turbulence energy collection and power generation system according to claim 5 is characterized in that: The leakage hole is a long hole arranged along the height direction of the outer cylinder (19).

7. The turbulence energy collection and power generation system according to claim 1, characterized in that: The output end of the hydraulic motor (5) is connected to the input end of the generator (1) via a steady-speed transmission mechanism. The steady-speed transmission mechanism includes a tapered shaft (26) and a spline shaft (27) rotatably connected to the bearing shell (25). A driven wheel (29) is slidably connected to the spline shaft (27). The driven wheel (29) transmits power to the tapered shaft (26) and rotates with the tapered shaft (26). The driven wheel (29) slides to different positions of the spline shaft (27) according to different rotation speeds. Either end of the tapered shaft (26) is connected to the output end of the hydraulic motor (5), and either end of the spline shaft (27) is connected to the input end of the generator (1).

8. The turbulence energy collection and power generation system according to claim 7, characterized in that: The driven outer ring (31) and the tapered shaft (26) utilize magnetic transmission.

9. The turbulence energy collection and power generation system according to claim 7, characterized in that: The driven wheel (29) has a sliding inner ring (30), a driven outer ring (31) and a plurality of blades (32), wherein the sliding inner ring (30) is slidably connected to the spline shaft (27), and the surface of the tapered shaft (26) and the surface of the driven outer ring are fixedly connected with magnets (35), wherein the magnetic poles of the magnets (35) on the surface of the tapered shaft (26) and the surface of the driven outer ring (31) are opposite, and the blades (32) are respectively connected to the sliding inner ring (30) and the driven outer ring (31), and the plurality of blades (32) are arranged in a circumferential array between the sliding inner ring (30) and the driven outer ring (31), and a second elastic member (33) is connected to either end of the driven wheel (29) and the spline shaft (27).

10. The turbulence energy collection and power generation system according to claim 8, characterized in that: The output end of the hydraulic motor (5) is connected to the speed-stabilizing transmission mechanism via a one-way bearing (34), and the tapered shaft (26) is a solid metal shaft.

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