A hierarchical variable-directional energy storage-power generation-storage integrated marine energy device

Abstract

The present application discloses a hierarchical variable direction energy storage-power generation-electricity storage integrated marine energy device, which relates to the technical field of marine energy power generation devices. It has the advantages of strong adaptability to seawater flow direction, ability to effectively match working modes, and ability to achieve sufficient energy storage, stable power generation and safe power storage. The marine energy device includes a fixed seat, a bracket-type hierarchical impeller, a transmission mechanism, a lifting energy storage mechanism, a power generation mechanism, a power storage device and a seawater flow direction monitoring system; a first servo motor is provided on the fixed seat, and a second servo motor is provided inside the hierarchical impeller; the transmission mechanism includes a full-time transmission gear pair, a directional rotating shaft and an energy storage gear rack pair; the full-time transmission gear pair can drive the directional rotating shaft to rotate; the directional rotating shaft is connected to the lifting energy storage mechanism and drives the lifting energy storage mechanism upward; the lifting energy storage mechanism is connected to the power generation mechanism, and the lifting energy storage mechanism can drive the power generation mechanism to generate electricity; the power storage device is electrically connected to the power generation mechanism.

Description

Technical Field

[0001] The present application relates to the technical field of ocean energy power generation devices, and in particular to a hierarchical variable-directional energy storage-power generation-storage integrated ocean energy device. Background Art

[0002] Tidal energy, the energy generated by tidal movement, is one of humanity's earliest marine power resources. Due to its ubiquity, widespread distribution across the oceans, and its crisscrossing, constantly flowing resources, ocean energy holds considerable potential. Improving the efficient utilization of tidal and ocean current energy is key to achieving the benefits of ocean energy development. However, despite its enormous total volume, ocean energy suffers from variability and instability, making its utilization difficult. It also suffers from shortcomings such as uneven distribution, low energy flux density, low utilization efficiency, and poor economic efficiency. Existing ocean energy devices (such as oscillating water column wave converters) face challenges such as unstable generator power and poor power quality, a lack of autonomous adaptability that prevents effective operation, poor internal structural compatibility, poor energy storage safety, and insufficient energy conversion efficiency. Summary of the Invention

[0003] The embodiments of the present application provide a hierarchical variable-directional energy storage-power generation-storage integrated marine energy device, which has the advantages of strong adaptability to seawater flow direction, ability to effectively match working modes, and ability to achieve sufficient energy storage, stable power generation and safe power storage.

[0004] To achieve the above-mentioned purpose, an embodiment of the present application provides a hierarchical variable direction energy storage-power generation-storage integrated marine energy device, comprising a fixed seat, a bracket rotatably connected to the fixed seat and a hierarchical impeller, a transmission mechanism, a lifting energy storage mechanism, a power generation mechanism, a power storage device and a seawater flow direction monitoring system arranged on the bracket; a first servo motor is provided on the fixed seat, and the first servo motor can control the bracket to rotate to a preset angle according to the flow direction of seawater monitored by the seawater flow direction monitoring system; a second servo motor is provided inside the hierarchical impeller; the transmission mechanism includes a full-time transmission gear pair, a directional rotation shaft and an energy storage gear rack pair; the second servo motor can be based on The angle of attack of the blades of the graded impeller is adjusted according to the flow direction of seawater monitored by the seawater flow direction monitoring system; the full-time transmission gear pair is transmission-connected between the graded impeller and the directional rotating shaft; the full-time transmission gear pair can drive the directional rotating shaft to rotate; the directional rotating shaft is transmission-connected to the lifting energy storage mechanism through the energy storage gear rack pair, and drives the lifting energy storage mechanism upward; the lifting energy storage mechanism is transmission-connected to the power generation mechanism through the power generation gear rack pair, and the lifting energy storage mechanism can drive the power generation mechanism to generate electricity; the power storage device is electrically connected to the power generation mechanism, and the power storage device can store the electric energy output by the power generation mechanism.

[0005] Furthermore, there are four stepped impellers, which are symmetrically arranged in pairs at both ends of the directional rotating shaft, and the lifting energy storage mechanism is located in the middle of the directional rotating shaft.

[0006] Furthermore, the stepped impeller includes an impeller body and a plurality of blade assemblies uniformly distributed along the circumferential direction on the first end of the impeller body; the impeller body is sleeved on the output shaft of the second servo motor, and the first end of the impeller body is provided with end face teeth; the blade assembly includes a blade transmission shaft rotatably connected to the impeller body and impeller blades and an impeller transmission gear arranged at both ends of the blade transmission shaft; the impeller transmission gear is meshed with the end face teeth; the impeller transmission gear is a bevel gear; an impeller transmission shaft is provided on the second end of the impeller body, and the impeller transmission shaft is rotatably connected to the bracket.

[0007] Furthermore, the full-time transmission gear pair includes a driving gear, a forward transmission gear and a reverse transmission gear; the driving gear, the forward transmission gear and the reverse transmission gear are all bevel gears; the driving gear is sleeved on the end of the impeller transmission shaft; the forward transmission gear and the reverse transmission gear are both sleeved on the directional rotation shaft; the driving gear can be selectively engaged with the forward transmission gear or the reverse transmission gear.

[0008] Furthermore, a forward mating gear and a reverse mating gear are provided on the directional rotating shaft; the forward transmission gear is connected to the forward mating gear through a forward control pin assembly, and the forward transmission gear can drive the directional rotating shaft to rotate forward; the reverse transmission gear is connected to the reverse mating gear through a reverse control pin assembly, and the forward transmission gear can drive the directional rotating shaft to rotate reversely.

[0009] Furthermore, the energy storage gear rack pair includes an energy storage transmission gear sleeved on the middle of the directional rotating shaft and an energy storage transmission rack fixedly connected to the bottom of the lifting energy storage mechanism; the energy storage transmission rack extends in the vertical direction; the energy storage transmission gear and the energy storage transmission rack are meshed.

[0010] Furthermore, the lifting energy storage mechanism includes a lifting energy storage block; the front and rear side surfaces of the lifting energy storage block are both arc surfaces; the bracket is provided with an arc groove adapted to the arc surface; the arc surface can move up and down along the arc groove; the left and right sides of the lifting energy storage block are provided with guide grooves extending in the vertical direction, and the fixed seat is provided with a guide block adapted to the guide groove; the guide block can move up and down along the guide groove.

[0011] Furthermore, a plurality of limit guide rails evenly distributed in the vertical direction are provided in the arc groove; the end of the limit guide rail away from the lifting energy storage block is higher than the end close to the lifting energy storage block; a magnetic limit ball adapted to the limit guide rail is provided in the limit guide rail; the magnetic limit ball can move up and down along the limit guide rail, and when the magnetic limit ball is located at the bottom of the limit guide rail, the magnetic limit ball can prevent the lifting energy storage block from moving downward; a self-excited magnetic structure is also provided on the bracket, and the self-excited magnetic structure is located on the outside of the limit guide rail, and the self-excited magnetic structure can adsorb the magnetic limit ball to the top end of the limit guide rail when energized; a self-excited magnetic switch is also provided on the lifting energy storage block, and the self-excited magnetic switch can control the self-excited magnetic structure to conduct when it detects that the magnetic limit ball located on the top layer falls to the bottom end of the limit guide rail.

[0012] Furthermore, the power generation mechanism includes a plurality of generators symmetrically arranged on the left and right; the power generation gear rack pair includes a power generation rack and a power generation gear adapted to the power generation rack; the power generation rack is arranged on the left and right sides of the lifting energy storage block and extends in the vertical direction; the power generation gear is arranged at the end of the rotor shaft of the generator.

[0013] Furthermore, the seawater flow direction monitoring system includes a single-chip microcomputer and multiple Hall flow sensors arranged on the crossbeam of the bracket; the single-chip microcomputer is electrically connected to the Hall flow sensor, the first servo motor and the second servo motor respectively; the multiple Hall flow sensors can monitor the water flow speed in different directions, and the single-chip microcomputer can determine the maximum water flow direction and calculate the rotation angle of the first servo motor and the second servo motor based on the water flow speed in different directions monitored by the Hall flow sensor, and drive the first servo motor and the second servo motor to rotate a preset angle.

[0014] Compared with the prior art, this application has the following beneficial effects:

[0015] 1. In the embodiment of the present application, when the seawater flow rate is too low, the seawater flow direction monitoring system can control the second servo motor to drive the impeller body to rotate and then drive the blade transmission gear to move according to the seawater flow rate, thereby appropriately adjusting the angle of attack of the impeller blades to enable the stepped impeller to obtain maximum torque, thereby reducing the minimum starting flow rate of the device; and when the seawater flow rate is too high, the kinetic energy of the water flow is converted into potential energy through the lifting energy storage block, and then released through the uniform falling of the lifting energy storage block to obtain stable electrical energy. Compared with the power generation equipment of the prior art that operates at full power for a long time, the service life of the embodiment of the present application is longer. Therefore, the embodiment of the present application can extend the scope of utilization of seawater flow.

[0016] 2. In the embodiment of the present application, the flow of seawater drives the rotation of the graded impeller and converts the kinetic energy of the water flow into the potential energy of the lifting energy storage block through a full-time transmission gear pair. During the ascent of the lifting energy storage block, the magnetic balls in the magnetic limit ball track on the inner side of the slide rail fall along the magnetic limit ball track, thereby achieving the upward movement of the lifting energy storage block. When the lifting energy storage block reaches the upper limit position, it touches the top self-excited magnetic switch, at which point the controllable magnetic switch falls, and the magnetic balls are attracted by the magnetic force and move along the limit guide rail. The lifting energy storage block loses the limit of the magnetic ball and falls under the action of gravity, thereby driving the rotation of the three-phase motor and converting the kinetic energy of the seawater into electrical energy.

[0017] 3. In the embodiment of the present application, the Hall flow sensor monitors the water flow velocity in different directions, and the single chip calculates the maximum water flow direction. The first servo motor drives the bracket to rotate, so that the grading impeller faces the maximum water flow direction, so that the grading impeller obtains the maximum torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a hierarchical variable-directional energy storage-power generation-storage integrated marine energy device according to an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the graded impeller in the graded variable-directional energy storage-power generation-storage integrated marine energy device according to an embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of the control circuit of the staged impeller in the staged variable-directional energy storage-power generation-storage integrated marine energy device according to an embodiment of the present application;

[0022] Figure 4 This is a schematic diagram of the connection structure of the stepped impeller and the full-time transmission gear pair at one angle in the stepped variable-directional energy storage-power generation-storage integrated marine energy device according to an embodiment of the present application;

[0023] Figure 5 This is a schematic diagram of the connection structure of the stepped impeller and the full-time transmission gear pair at another angle in the stepped variable-directional energy storage-power generation-storage integrated marine energy device according to an embodiment of the present application;

[0024] Figure 6 This is a structural schematic diagram of the forward control pin assembly in the hierarchical variable-directional energy storage-generation-storage integrated marine energy device according to an embodiment of the present application;

[0025] Figure 7 This is a schematic diagram of the connection structure between the lifting energy storage mechanism and the directional rotating shaft in the hierarchical variable-directional energy storage-power generation-storage integrated marine energy device according to an embodiment of the present application;

[0026] Figure 8 This is a schematic diagram of the connection structure between the lifting energy storage block and the bracket in the hierarchical variable-directional energy storage-power generation-storage integrated marine energy device according to an embodiment of the present application;

[0027] Figure 9 This is a schematic diagram of the three-dimensional structure of the bracket in the hierarchical variable-directional energy storage-power generation-storage integrated marine energy device according to an embodiment of the present application;

[0028] Figure 10 This is a schematic diagram of the three-dimensional structure of the fixing seat in the hierarchical variable-directional energy storage-power generation-storage integrated marine energy device according to an embodiment of the present application;

[0029] Figure 11 This is a schematic diagram of the rotation control circuit of the bracket in the hierarchical variable-directional energy storage-generation-storage integrated marine energy device according to an embodiment of the present application;

[0030] Figure 12 This is a schematic diagram of a filter and rectifier circuit in a hierarchical, variable-direction energy storage-generation-storage integrated marine energy device according to an embodiment of the present application;

[0031] Figure 13 This is a schematic diagram of the structure of the cable in the hierarchical variable-directional energy storage-power generation-storage integrated marine energy device according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0036] Reference Figure 1An embodiment of the present application provides a graded variable-direction energy storage-power generation-storage integrated marine energy device, including a fixed seat 1, a bracket 2 rotatably connected to the fixed seat 1 and a graded impeller 3 arranged on the bracket 2, a transmission mechanism 4, a lifting energy storage mechanism 5, a power generation mechanism 6, an electricity storage device 7 and a seawater flow direction monitoring system.

[0037] Reference Figure 2 and Figure 4 The stepped impeller 3 includes an impeller body 301 and a plurality of blade assemblies 302, for example, twelve, evenly distributed along the circumference of the first end of the impeller body 301. The first end of the impeller body 301 is provided with face teeth 303. Specifically, the impeller body 301 is provided with a blade assembly bracket 308. The blade assembly 302 includes a blade drive shaft 304 rotatably connected to the blade assembly bracket 308, impeller blades 305 disposed at both ends of the blade drive shaft 304, and an impeller drive gear 306. The impeller drive gear 306 is a bevel gear that meshes with the face teeth 303. An impeller drive shaft 307 is fixedly connected to the second end of the impeller body 301 and is rotatably connected to the bracket 2. Specifically, the bracket 2 is provided with a crossbeam 201, to which a support plate 202 is fixedly connected. The impeller drive shaft 307 and the support plate 202 are rotatably connected via a support bearing 10. A second servo motor 9 is provided within the stepped impeller 3. The impeller body 301 is sleeved on the output shaft of the second servo motor 9 .

[0038] Reference Figure 1 、 Figure 4 and Figure 5 The transmission mechanism 4 includes a full-time transmission gear pair 401, a directional rotation shaft 402, and an energy storage gear rack pair 403. The full-time transmission gear pair 401 is connected between the stepped impeller 3 and the directional rotation shaft 402. The full-time transmission gear pair 401 can drive the directional rotation shaft 402 to rotate.

[0039] In some embodiments, reference Figure 1 There are four graded impellers 3, which are symmetrically arranged in pairs at both ends of the directional rotating shaft 402, and the lifting energy storage mechanism 5 is located in the middle of the directional rotating shaft 402, so that the bracket can maintain balance.

[0040] Reference Figure 4 and Figure 5 The full-time transmission gear pair 401 includes a driving gear 4011, a forward transmission gear 4012, and a reverse transmission gear 4013. Each of the driving gears 4011, 4012, and 4013 is a bevel gear. The driving gear 4011 is fixedly connected to the end of the impeller transmission shaft 307, while the forward transmission gear 4012 and the reverse transmission gear 4013 are both sleeved on the directional rotation shaft 402.

[0041] Specifically, a forward mating gear 4014 and a reverse mating gear 4016 are fixedly connected or integrally formed on the directional rotation shaft 402. Both the forward mating gear 4014 and the reverse mating gear 4016 have helical teeth with opposite helical orientations. The inner bores of the forward transmission gear 4012 and the reverse transmission gear 4013 are provided with internal tooth grooves that mate with the forward mating gear 4014 and the reverse mating gear 4016, respectively. The forward mating gear 4014 is connected to the forward transmission gear 4012 via a forward control pin assembly 4015, while the reverse mating gear 4016 is connected to the reverse transmission gear 4013 via a reverse control pin assembly 4017.

[0042] Reference Figure 6 The forward control pin assembly 4015 includes an outer pin sleeve 4018, a directional control pin 4019, and a spring 4020. The outer pin sleeve 4018 is fixedly attached to the forward transmission gear 4012. The directional control pin 4019 has a cylindrical first end and a triangular cross-section at its second end. The end face of the second end matches the bevel of the helical teeth of the forward mating gear 4014. The first end of the directional control pin 4019 is located in the outer pin sleeve 4018, and the second end is inserted between two adjacent teeth of the forward mating gear 4014. The spring 4020 is installed between the outer pin sleeve 4018 and the directional control pin 4019. The structure of the reverse control pin assembly 4017 is identical to that of the forward control pin assembly 4015. When the driving gear 4011 drives the forward transmission gear 4012 to rotate, the reverse transmission gear 4013 rotates and slips, causing the reverse mating gear 4016 to rotate along with the directional rotation shaft 402. When the driving gear 4011 drives the reverse transmission gear 4013 to rotate, the forward transmission gear 4012 rotates and slips, and the forward mating gear 4014 rotates along with the directional rotation axis 402. Thus, the driving gear 4011 can selectively mesh with either the forward transmission gear 4012 or the reverse transmission gear 4013. Because the water flows in opposite directions during high tide and low tide, the embodiments of the present application are applicable to both high tide and low tide.

[0043] Reference Figure 7 The energy storage gear rack pair 403 includes an energy storage transmission gear 4031 sleeved on the middle of the directional rotation shaft 402 and an energy storage transmission rack 4032 fixedly connected to the bottom of the lifting energy storage mechanism 5. The energy storage transmission rack 4032 extends in the vertical direction, and the energy storage transmission gear 4031 and the energy storage transmission rack 4032 are meshed.

[0044] Reference Figure 7 and Figure 8The lifting energy storage mechanism 5 includes a lifting energy storage block 51, the front and rear sides of which are both arcuate surfaces 511. A self-aligning inner arc surface guide rail 203 is provided on the bracket 2. The sliding surface of the self-aligning inner arc surface guide rail 203 is an arc-shaped groove that matches the arc surface 511, allowing the arc surface 511 to move up and down along the arc groove. This restricts the front-to-back freedom of the lifting energy storage block 51.

[0045] The left and right sides of the lifting energy storage block 51 are provided with guide grooves 512 extending in the vertical direction. The bracket 2 is provided with guide blocks 204 adapted to the guide grooves 512. The guide blocks 204 can move up and down along the guide grooves 512. This can limit the freedom of the lifting energy storage block 51 in the left and right directions.

[0046] A plurality of vertically evenly distributed limiting guide rails 52 are provided in the arc groove. The end (outer side) of the limiting guide rail 52 away from the lifting energy storage block 51 is higher than the end (inner side) close to the lifting energy storage block 51. A magnetic limiting ball 53 is provided in the limiting guide rail 52 to match the limiting guide rail 52. At least a portion of the bottom of the limiting guide rail 52 is not closed, so that the magnetic limiting ball 53 can move up and down along the limiting guide rail 52. When the magnetic limiting ball 53 moves to the bottom of the limiting guide rail 52, the magnetic limiting ball 53 can prevent the lifting energy storage block 51 from moving downward.

[0047] The bracket 2 is also provided with a self-excited magnetic attraction structure 54, which is located on the outside of the limit guide rail 52 and extends in the vertical direction. When powered on, the self-excited magnetic attraction structure 54 can adsorb the magnetic limit ball 53 to the top of the limit guide rail 52. The lifting energy storage block 51 is also provided with a self-excited magnetic attraction switch 55. The self-excited magnetic attraction switch 55 can control the self-excited magnetic attraction structure 54 to be turned on when it detects that the magnetic limit ball 53 located on the top layer has fallen to the bottom of the limit guide rail 52. As a result, during the ascent of the lifting energy storage block 51, the magnetic limit ball 53 in the limit guide rail 52 on the inner side of the slide rail falls along the limit guide rail 52, thereby preventing the lifting energy storage block 51 from falling suddenly during the ascent. When the lifting energy storage block 51 reaches its upper limit, the self-exciting magnetic switch 55 detects that the topmost magnetic stop ball 53 has fallen to the bottom of the stop rail 52. It then energizes the self-exciting magnetic structure 54, attracting the magnetic stop ball 53 and moving it upward along the stop rail 52. The lifting energy storage block 51 loses the restraint of the magnetic stop ball 53 and falls under the action of gravity, thereby driving the generator 6 and converting the kinetic energy of the seawater into electrical energy.

[0048] Reference Figure 1 and Figure 9The power generation mechanism 6 includes multiple, for example, four, symmetrically arranged generators 61. Generators 61 are mounted on the support 2 via a generator mounting bracket 205. Specifically, a retaining plate 206 is provided on the support 2, to which the generator mounting bracket 205 is fixedly connected. A self-aligning inner arc surface guide rail 203 is also fixedly connected to the retaining plate 206. A through hole 207 is provided in the center of the retaining plate 206 for the energy storage transmission rack 4032 of the energy storage rack and pinion pair 403 to pass.

[0049] Reference Figure 1 、 Figure 7 and Figure 13 The power generation mechanism 6 is connected to the lifting energy storage block 51 through the power generation rack and pinion pair 11. The power generation rack and pinion pair 11 includes a power generation rack 111 and a power generation gear 112 adapted to the power generation rack. The power generation rack 111 is arranged on the left and right sides of the lifting energy storage block 51 and extends in the vertical direction. The power generation gear 112 is arranged at the end of the rotor shaft of the generator 61. The generator 61 is connected to the power storage device 7 through a waterproof cable 12. For details, refer to Figure 12 The waterproof cable 12 includes a waterproof layer 1201 and a cable 1202. Figure 11 In some embodiments, in order to make the stored voltage more stable, a filter and rectifier module is further connected between the generator 61 and the power storage device 7. The filter and rectifier module includes a rectifier module 16, a filter module 17, a fuse 18 and a battery 19 connected in sequence.

[0050] Reference Figure 9 and Figure 10 A connecting plate 208 is provided at the bottom of the bracket 2. A first servo motor 13 is mounted below the fixed base 1. A groove 101 is provided on the fixed base 1. A thrust ball bearing 14 is positioned within the groove 101, with the outer ring of the thrust ball bearing 14 fixedly connected to the sidewall of the groove 101. A through hole is provided at the bottom of the groove 101. The output shaft of the first servo motor 13 is floatingly connected to the transmission shaft 15. Both the transmission shaft 15 and the connecting plate 208 are fixedly connected to the inner ring of the thrust ball bearing 14. As a result, the first servo motor 13 only transmits torque and does not bear the weight of the device. The weight of the device is borne by the thrust ball bearing 14.

[0051] Reference Figure 3 and Figure 11, the seawater flow direction monitoring system is arranged in the fixed seat 1, and the seawater flow direction monitoring system includes a single chip microcomputer 20 and a plurality of Hall flow rate sensors 21 arranged on the bracket 2, for example, four. The specific number can be set according to the actual working conditions and is not limited here. The single chip microcomputer 20 is electrically connected to the Hall flow rate sensor 21, the first servo motor 13 and the second servo motor 9 respectively. The multiple Hall flow rate sensors 21 can monitor the water flow speed in different directions. The single chip microcomputer 20 can judge the maximum water flow direction according to the water flow speed in different directions monitored by the Hall flow rate sensor 21 and calculate the rotation angle of the first servo motor 13 and the second servo motor 9, and drive the first servo motor 13 and the second servo motor 9 to rotate the preset angle. Specifically, refer to Figure 3 The single chip microcomputer 20 is further connected to a signal amplifying circuit 22 and a crystal oscillating circuit 23. Thus, the detection accuracy and effect can be improved.

[0052] The above are only specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A hierarchical, variable-direction energy storage-power generation-storage integrated marine energy device, characterized in that: The device comprises a fixed base, a bracket rotatably connected to the fixed base, and a stepped impeller provided on the bracket, a transmission mechanism, a lifting energy storage mechanism, a power generation mechanism, an electric storage device, and a seawater flow direction monitoring system. The fixed base is provided with a first servo motor, which can control the bracket to rotate to a preset angle according to the flow direction of seawater monitored by the seawater flow direction monitoring system. A second servo motor is provided inside the stepped impeller; the transmission mechanism includes a full-time transmission gear pair, a directional rotating shaft, and an energy storage gear rack pair; the second servo motor is capable of adjusting the angle of attack of the blades of the stepped impeller according to the flow direction of seawater monitored by the seawater flow direction monitoring system; the full-time transmission gear pair is transmission-connected between the stepped impeller and the directional rotating shaft; the full-time transmission gear pair is capable of driving the directional rotating shaft to rotate; The directional rotating shaft is connected to the lifting energy storage mechanism through the energy storage gear rack pair, and drives the lifting energy storage mechanism upward; the lifting energy storage mechanism is connected to the power generation mechanism through the power generation gear rack pair, and the lifting energy storage mechanism can drive the power generation mechanism to generate electricity; the power storage device is electrically connected to the power generation mechanism, and the power storage device can store the electric energy output by the power generation mechanism; The lifting energy storage mechanism includes a lifting energy storage block; the front and rear side surfaces of the lifting energy storage block are both arc surfaces; the bracket is provided with an arc groove adapted to the arc surface; the arc surface can move up and down along the arc groove; The left and right sides of the lifting energy storage block are both provided with guide grooves extending in the vertical direction, and the fixing seat is provided with guide blocks adapted to the guide grooves; the guide blocks can move up and down along the guide grooves; A plurality of limit guide rails uniformly distributed in the vertical direction are provided in the arc groove; an end of the limit guide rail away from the lifting energy storage block is higher than an end close to the lifting energy storage block; a magnetic limit ball adapted to the limit guide rail is provided in the limit guide rail; the magnetic limit ball can move up and down along the limit guide rail, and when the magnetic limit ball is located at the bottom of the limit guide rail, the magnetic limit ball can prevent the lifting energy storage block from moving downward; The bracket is also provided with a self-excited magnetic structure, which is located on the outside of the limit guide rail. When powered on, the self-excited magnetic structure can adsorb the magnetic limit ball to the top of the limit guide rail; the lifting energy storage block is also provided with a self-excited magnetic switch, which can control the self-excited magnetic structure to conduct when it detects that the magnetic limit ball located on the top layer falls to the bottom of the limit guide rail.

2. The hierarchical variable-directional energy storage-power generation-storage integrated ocean energy device according to claim 1 is characterized in that: There are four stepped impellers, which are symmetrically arranged in pairs at both ends of the directional rotating shaft, and the lifting energy storage mechanism is located in the middle of the directional rotating shaft.

3. The hierarchical variable-directional energy storage-power generation-storage integrated ocean energy device according to claim 2 is characterized in that: The stepped impeller includes an impeller body and a plurality of blade assemblies uniformly distributed along the circumferential direction on a first end of the impeller body; The impeller body is sleeved on the output shaft of the second servo motor, and the first end of the impeller body is provided with end face teeth; The blade assembly includes a blade transmission shaft rotatably connected to the impeller body, and impeller blades and an impeller transmission gear arranged at both ends of the blade transmission shaft; the impeller transmission gear is meshed with the end face teeth, and the impeller transmission gear is a bevel gear; An impeller transmission shaft is provided on the second end of the impeller body, and the impeller transmission shaft is rotatably connected to the bracket.

4. The hierarchical variable-directional energy storage-power generation-storage integrated ocean energy device according to claim 2 is characterized in that: The full-time transmission gear pair includes a driving gear, a forward transmission gear and a reverse transmission gear; the driving gear, the forward transmission gear and the reverse transmission gear are all bevel gears; the driving gear is sleeved on the end of the impeller transmission shaft; the forward transmission gear and the reverse transmission gear are both sleeved on the directional rotation shaft; the driving gear can selectively engage with the forward transmission gear or the reverse transmission gear.

5. The hierarchical variable-directional energy storage-power generation-storage integrated ocean energy device according to claim 4 is characterized in that: A forward mating gear and a reverse mating gear are provided on the directional rotating shaft; the forward transmission gear is connected to the forward mating gear via a forward control pin assembly, and the forward transmission gear can drive the directional rotating shaft to rotate forward; the reverse transmission gear is connected to the reverse mating gear via a reverse control pin assembly, and the forward transmission gear can drive the directional rotating shaft to rotate reversely.

6. The hierarchical variable-directional energy storage-power generation-storage integrated ocean energy device according to claim 2 is characterized in that: The energy storage gear rack pair includes an energy storage transmission gear sleeved on the middle of the directional rotating shaft and an energy storage transmission rack fixedly connected to the bottom of the lifting energy storage mechanism; the energy storage transmission rack extends in the vertical direction; the energy storage transmission gear and the energy storage transmission rack are meshed.

7. The hierarchical variable-directional energy storage-power generation-storage integrated ocean energy device according to claim 1 is characterized in that: The power generation mechanism includes a plurality of generators arranged symmetrically on the left and right; the power generation gear rack pair includes a power generation rack and a power generation gear adapted to the power generation rack; the power generation rack is arranged on the left and right sides of the lifting energy storage block and extends in the vertical direction; the power generation gear is arranged at the end of the rotor shaft of the generator.

8. The hierarchical variable-directional energy storage-power generation-storage integrated ocean energy device according to claim 1 is characterized in that: The seawater flow direction monitoring system includes a single chip microcomputer and a plurality of Hall flow rate sensors arranged on the crossbeam of the bracket; the single chip microcomputer is electrically connected to the Hall flow rate sensors, the first servo motor and the second servo motor respectively; The multiple Hall flow rate sensors can monitor the water flow speed in different directions. The single chip microcomputer can determine the maximum water flow direction and calculate the rotation angle of the first servo motor and the second servo motor based on the water flow speed in different directions monitored by the Hall flow rate sensor, and drive the first servo motor and the second servo motor to rotate a preset angle.

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