Wave energy power generation device

Abstract

The invention discloses a wave energy power generation device, and relates to the field of wave power generation, the wave energy power generation device comprises a main body part, a floating body, an electric energy conversion part and a compensation control system, a kinetic energy transmission cylinder body of an L-shaped structure is installed in the main body part, a driving piston is movably installed in the vertical end of the kinetic energy transmission cylinder body, and a driving piston rod is connected to the driving piston; a passive piston is movably installed in the horizontal end of the kinetic energy transmission cylinder body, a passive piston rod is connected to the passive piston, the lower portion of the floating body is connected with the top of the active piston rod through a connecting part, the electric energy conversion part is arranged on one side of the main body part and is in transmission connection with the passive piston rod through a transmission assembly, and the compensation control system is installed on the main body part. By means of the compensation control system, stroke compensation can be conducted on the floating body when the up-down floating amplitude of the floating body is too large or small under the influence of waves, the reciprocating motion stroke of the passive piston rod is made to be within a reasonable range, and the power generation efficiency and the power generation stability are improved.

Description

Technical Field

[0001] The invention relates to the field of wave energy power generation, and in particular to a wave energy power generation device. Background Art

[0002] As is known to all, wave power generation is a technology that uses the energy generated by the movement of waves on the ocean surface to generate electricity. Its basic principle is to capture the kinetic energy and potential energy of the waves, convert them into mechanical energy, and then convert them into electrical energy;

[0003] For example, the authorization announcement number is CN116085177B, the authorization announcement date is 2023.06.06, and the name is an oscillating water column wave energy power generation device for a surge-proof buoy, including an air chamber, a rotating elbow and a guide tube connected in sequence, and a guide rail, a reciprocating thrust plate and a turbine are arranged in the guide tube. The wave energy conversion device, whose guide tube is arranged horizontally and a reciprocating thrust plate is arranged in the guide tube, cleverly converts the liquid level rise and fall in the air chamber into the relative reciprocating motion of the reciprocating thrust plate in the guide tube, and converts it into the mechanical energy of the reciprocating thrust plate again when the wave energy is converted into effective spatial energy, and then converts its mechanical energy into effective spatial energy through the reciprocating motion of the thrust plate...; another example is the authorization announcement number is CN115875183B, the authorization announcement date is 2023.05.23, and the name is a wave energy power generation system and power generation control method;

[0004] As in the above application, since wave energy is unstable, that is, the fluctuation size of waves cannot be controlled and is uncertain, the floating range of the floating body varies greatly, which affects the energy conversion and easily causes damage to the structure of the conversion equipment. In order to solve this problem, in existing wave energy power generation equipment, it is often necessary to design a series of power structures, such as setting sensors on the floating structure to sense the floating of waves in real time. When the floating exceeds the threshold, the signal is transmitted to the control device, and the control device controls the power conversion structure to make adjustments. This not only leads to a significant increase in the production cost of the entire equipment, but also makes the application cost and energy consumption of the equipment relatively increased. Summary of the invention

[0005] 1. Purpose of the invention

[0006] In view of this, the purpose of the present invention is to propose a wave energy power generation device. By setting up a compensation control system, the device can achieve stroke compensation when the floating body floats up and down too much or too little due to the influence of waves, so that the reciprocating motion stroke of the passive piston rod is within a reasonable range, thereby achieving the effect of reducing the impact of wave energy and improving the efficiency and stability of power generation.

[0007] (II) Technical solution

[0008] In order to achieve the above technical objectives, the present invention provides a wave energy power generation device, which includes a main body, which is arranged below the water surface, a kinetic energy transmission cylinder body is installed inside the main body, the kinetic energy transmission cylinder body adopts an L-shaped structure, an active piston is movably installed inside the vertical end of the kinetic energy transmission cylinder body, an active piston rod is connected to the active piston, and a passive piston is movably installed inside the horizontal end of the kinetic energy transmission cylinder body, and a passive piston rod is connected to the passive piston;

[0009] A floating body, which floats on the water surface, wherein the bottom of the floating body is connected to the top of the active piston rod through a connecting component;

[0010] An electric energy conversion part, which is arranged on one side of the main body, and the electric energy conversion part is connected to the passive piston rod through a transmission assembly;

[0011] A compensation control system is installed on the main body and is used for performing compensation control on the effective space inside the kinetic energy transmission cylinder.

[0012] As a further description of the above technical solution: the compensation control system includes:

[0013] A controllable capsule, which is arranged in the kinetic energy transmission cylinder, and the controllable capsule can shrink and expand under the control of external constraints;

[0014] An air control device, which is arranged outside the main body and is used to control the contraction and expansion of the controllable capsule;

[0015] Wherein, the air control device is connected to the controllable capsule through an air control pipeline.

[0016] As a further description of the above technical solution: an air-controlled piston plate is movably installed inside the air-controlled device, and the lower interior of the air-controlled device is divided into an air chamber by the air-controlled piston plate. The air-controlled pipeline is connected to the air chamber so that the controllable bag is connected to the inside of the air chamber. A pressure control component is provided above the air-controlled device, and the pressure control component is used to control the movement of the air-controlled piston plate.

[0017] As a further description of the above technical solution: a plurality of fixing plates are installed inside the air control device at a position above the air control piston plate, and the fixing plates are connected to the air control piston plate via an elastic air pressure balancing device.

[0018] As a further description of the above technical solution: a movable plate capable of moving up and down following the active piston rod is installed on the top of the active piston rod, and the pressure control assembly includes:

[0019] An upward control column, which is fixedly mounted above the gas control piston plate, and a control groove is provided on the upward control column in the vertical direction;

[0020] An upward control cross bar, one end of which is fixed to the movable plate so that it can be raised and lowered along with the lifting and lowering of the movable plate, and the other end of the upward control cross bar is engaged in the control groove;

[0021] A descending control column, which is fixedly mounted above the gas control piston plate, and a second rack portion is provided above one side of the descending control column;

[0022] A downward control bracket adopts an inverted L-shaped structure, one end of which is fixed to the movable plate so that it can be raised and lowered following the lifting of the movable plate, and a first rack portion is provided on one side of the downward control bracket;

[0023] Among them, a control gear is installed inside the air control device between the downward control bracket and the downward control column through a shaft, and the control gear is always meshed and connected with the second rack portion. The first rack portion can be meshed and connected with the control gear after the downward control bracket descends to a predetermined position.

[0024] As a further description of the above technical solution: the connecting component includes:

[0025] A common member, which is arranged above the active piston rod and is fixedly connected to the active piston rod through a main cable;

[0026] There are a plurality of branch cables, which are radially connected between the common component and the floating body.

[0027] As a further description of the above technical solution: a fixing seat is installed above the main body, the top of the active piston rod passes through the fixing seat, and a plurality of downward traction components are connected between the movable plate and the fixing seat, and the downward traction components are elastic.

[0028] As a further description of the above technical solution: a transmission chamber, a gear chamber and a generator set are provided inside the electric energy conversion part, wherein the transmission assembly is arranged in the transmission chamber, a transmission gear set is installed in the gear chamber, the transmission gear set is connected to the generator set through transmission, and the reciprocating motion of the passive piston rod is converted into circular motion through the transmission assembly.

[0029] As a further description of the above technical solution: the transmission assembly includes a shaft disc and a connecting rod, wherein one end of the connecting rod is movably connected to one end of the passive piston rod through a flexible joint, the other end of the connecting rod is rotationally connected to the eccentric shaft on the surface of the shaft disc, and the central axis of the shaft disc is connected to the drive shaft of the transmission gear set.

[0030] As a further description of the above technical solution: one side of the main body is provided with an underwater first-stage wave-breaking board, and the upper part of one side of the main body is provided with an underwater second-stage wave-breaking board, wherein the underwater first-stage wave-breaking board and the underwater second-stage wave-breaking board adopt an arc structure on the side corresponding to the ocean.

[0031] In the above technical scheme, the present invention provides a wave energy power generation device. By setting a compensation control system, the device can achieve stroke compensation when the floating body floats up and down too much or too little due to the influence of waves, so that the reciprocating motion stroke of the passive piston rod is within a reasonable range, thereby achieving the effect of reducing the influence of wave energy and improving the efficiency and stability of power generation. In addition, through the ingenious structural design of the pressure control component in the compensation control system, the power comes from the device itself, that is, it is automatically realized by relying on the effect of wave energy conduction. Therefore, the compensation control system does not need to be controlled by an additional power device, that is, it achieves the effect of self-compensation, which not only greatly improves energy saving, but also greatly reduces the production cost and application cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1 A schematic diagram of the overall structure of a wave energy power generation device provided by the present invention;

[0034] Figure 2 A bottom view of a wave energy power generation device provided by the present invention;

[0035] Figure 3 A schematic diagram of the internal structure of the main body of a wave energy power generation device provided by the present invention;

[0036] Figure 4 A schematic diagram of the internal structure of an electric energy conversion unit in a wave energy power generation device provided by the present invention;

[0037] Figure 5 A schematic diagram of the installation structure of a transmission assembly in a wave energy power generation device provided by the present invention;

[0038] Figure 6 A schematic diagram of the structure of a transmission component in a wave energy power generation device provided by the present invention;

[0039] Figure 7 A schematic diagram of the installation structure of a compensation control system in a wave energy power generation device provided by the present invention;

[0040] Figure 8 A schematic diagram of the structure of a compensation control system in a wave energy power generation device provided by the present invention.

[0041] Description of the drawings: 1. Main body; 100. Underwater first wave-breaking board; 101. Underwater second wave-breaking board; 2. Power conversion unit; 200. Transmission chamber; 201. Gear chamber; 3. Floating body; 4. Connecting parts; 400. Branch rope; 401. Common parts; 402. Main rope; 5. Compensation control system; 500. Controllable bladder; 501. Air control pipeline; 502. Air control device; 503. Air control piston plate; 504. Downward control column; 5040. Second rack; 505. Upward control column; 5050. Control slot; 506. Upward control Cross bar; 507, air chamber; 508, elastic air pressure balance device; 509, fixed plate; 510, downward control bracket; 5100, first rack portion; 511, shaft rod; 512, control gear; 6, movable plate; 7, kinetic energy transmission cylinder; 8, transmission assembly; 800, shaft disc; 801, connecting rod; 802, flexible joint; 803, eccentric shaft; 9, transmission gear set; 10, generator set; 11, fixed seat; 12, downward traction component; 13, active piston rod; 14, active piston; 15, passive piston rod; 16, passive piston. DETAILED DESCRIPTION

[0042] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, and use. It should be understood that in all of these figures, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may be exaggerated to illustrate the relevant details or structures of the embodiments of the present disclosure.

[0043] Example 1

[0044] like Figure 1 - Figure 8As shown, this embodiment provides a technical solution: a wave energy power generation device, including a main body 1, a floating body 3, an electric energy conversion unit 2 and a compensation control system 5, the main body 1 is arranged below the water surface, a kinetic energy transmission cylinder 7 is installed inside the main body 1, the kinetic energy transmission cylinder 7 adopts an L-shaped structure, an active piston 14 is movably installed inside the vertical end of the kinetic energy transmission cylinder 7, an active piston rod 13 is connected to the active piston 14, a passive piston 16 is movably installed inside the horizontal end of the kinetic energy transmission cylinder 7, a passive piston 16 is connected to the passive piston rod 15, the floating body 3 floats on the water surface, and the bottom of the floating body 3 is connected by a connecting component 4 is connected to the top of the active piston rod 13, so that when the floating body 3 floats up and down due to the surge of waves, the active piston 14 can be driven and pulled up and down by the active piston rod 13. The electric energy conversion part 2 is arranged on one side of the main body 1. The electric energy conversion part 2 is connected to the passive piston rod 15 through the transmission assembly 8, and is used to convert the reciprocating mechanical energy of the passive piston rod 15 into electric energy for storage. The compensation control system 5 is installed on the main body 1, and is used to compensate and control the effective space inside the kinetic energy transmission cylinder 7, so that the waves driven by the floating body 3 can be kept within a stable range, thereby improving the efficiency and effect of power generation;

[0045] Working principle: When the device is in use, the float 3 floats on the water surface first. When the float 3 is driven up and down by the action of waves, the active piston 14 is driven up and down by the connecting component 4. Under the action of the effective space, the moving stroke of the passive piston 16 in the kinetic energy transmission cylinder 7 is consistent with the moving stroke of the active piston 14 (the friction effect is negligible), realizing the transfer of kinetic energy, and the reciprocating mechanical energy of the passive piston rod 15 is transmitted to the electric energy conversion part 2 through the transmission component 8, and is converted into electric energy for storage by the electric energy conversion part 2, realizing the power generation process;

[0046] In summary, the device sets a compensation control system 5 on the main body 1, and the compensation control system 5 can perform compensation control on the effective space inside the kinetic energy transmission cylinder 7, so that when the floating body 3 floats up and down too much due to the influence of waves, the reciprocating motion stroke of the passive piston rod 15 is still maintained within a controllable range, thereby achieving the effect of reducing the influence of wave energy and improving the efficiency and stability of power generation.

[0047] like Figure 4 , Figure 7 and Figure 8As shown, due to the instability of wave energy, the floating range of the floating body 3 varies greatly, which affects the energy conversion and easily causes damage to the structure of the conversion equipment. In order to solve this problem, in this embodiment, the compensation control system 5 includes a controllable capsule 500 and a pneumatic control device 502, wherein the controllable capsule 500 is arranged in the kinetic energy transmission cylinder 7, and the controllable capsule 500 can shrink and expand under the control of external constraints, thereby changing the effective space between the active piston 14 and the passive piston 16. The pneumatic control device 502 is arranged outside the main body 1, and is used to control the shrinkage and expansion of the controllable capsule 500. The pneumatic control device 502 is connected to the controllable capsule 500 through the pneumatic control pipeline 501;

[0048] The device controls the contraction and expansion of the controllable sac 500 through the air control device 502. When the controllable sac 500 is contracting and expanding, the effective space between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7 changes. Based on this, when the up and down floating of the float 3 is too large, the moving stroke of the passive piston 16 is increased through traction. At this time, by adjusting the expansion and contraction of the controllable sac 500, the effective space between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7 is changed, thereby achieving the effect of adjusting the moving stroke of the passive piston 16.

[0049] The principle is as follows: when the upward or downward stroke of the floating body 3 is too large (corresponding to the situation of large waves), if there is no regulation of the controllable capsule 500, the reciprocating stroke of the passive piston 16 is large, which may easily cause damage to the transmission component 8 at the rear end. After the controllable capsule 500 is set, the effective space between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7 is increased by controlling the contraction of the controllable capsule 500. When the moving stroke of the active piston 14 is the same, the moving stroke of the passive piston 16 is relatively reduced, achieving the effect of stroke reduction compensation. On the contrary, when When the upward or downward stroke of the floating body 3 is too small (corresponding to the situation of smaller waves), if there is no regulation of the controllable bladder 500, the reciprocating stroke of the passive piston 16 is small, which affects the conversion of mechanical energy and thus affects the power generation effect. After the controllable bladder 500 is set, the effective space between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7 is reduced by controlling the expansion of the controllable bladder 500. When the moving stroke of the active piston 14 is the same, the moving stroke of the passive piston 16 is relatively increased, thereby achieving the effect of increasing the range and ensuring the power generation efficiency.

[0050] It should be noted that the effective space between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7 represents the remaining space obtained by subtracting the area occupied by the controllable capsule 500 from the area between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7 .

[0051] It should also be noted that the controllable capsule 500 in the present embodiment can be replaced by a structure that can change the effective space between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7, such as by inserting or withdrawing a fixed structure between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7, and controlling it through an external electric device. When the upward or downward stroke of the floating body 3 is too small, the fixed structure is inserted between the active piston 14 and the passive piston 16, so as to achieve the effect of reducing the effective space between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7. Conversely, when the upward or downward stroke of the floating body 3 is too large, the fixed structure is withdrawn between the active piston 14 and the passive piston 16, so as to achieve the effect of increasing the effective space between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7. In this way, the compensation effect can still be achieved.

[0052] like Figure 7 and Figure 8 As shown, in order to achieve control over the controllable sac 500 so that it can expand and contract, in this embodiment, a pneumatic piston plate 503 is movably installed inside the pneumatic control device 502, and the lower part of the interior of the pneumatic control device 502 is divided into an air chamber 507 by the pneumatic piston plate 503. The pneumatic pipeline 501 is connected to the air chamber 507, so that the controllable sac 500 is connected to the inside of the air chamber 507. A pressure control component is provided above the pneumatic control device 502, and the pressure control component is used to control the movement of the pneumatic piston plate 503, so as to achieve control over the expansion and contraction of the controllable sac 500, that is, when the pneumatic piston plate 503 moves downward, the controllable sac 500 can be inflated to expand it, and when the pneumatic piston plate 503 moves upward, the controllable sac 500 can be inhaled to shrink it.

[0053] like Figure 8 As shown, in order to reduce the influence of the reverse air pressure between the active piston 14 and the passive piston 16 on the controllable capsule 500, in this embodiment, a plurality of fixed plates 509 are installed inside the air control device 502 at a position above the air control piston plate 503, and the fixed plates 509 are connected to the air control piston plate 503 through an elastic air pressure balancing device 508. The elastic air pressure balancing device 508 can apply pressure to the air control piston plate 503 to put it in a balanced state. The elastic air pressure balancing device 508 is composed of a plurality of springs with gradually increasing elastic coefficients from bottom to top, so that the upward resistance of the air control piston plate 503 increases exponentially, thereby reducing the reverse influence of the increased air pressure in the active piston 14 and the passive piston 16 on the controllable capsule 500.

[0054] It should be noted that: when the air pressure in the active piston 14 and the passive piston 16 changes, it will still have an impact on the controllable capsule 500, but this impact can be ignored and does not affect the compensation effect of the compensation control system 5.

[0055] like Figure 1 - Figure 5 As shown, in order to reduce the operating cost and production cost of the equipment, in this embodiment, a movable plate 6 that can move up and down with the active piston rod 13 is installed on the top of the active piston rod 13, and the pressure control assembly includes an upward control column 505, an upward control cross bar 506, a downward control column 504 and a downward control bracket 510, wherein the upward control column 505 is fixedly installed above the gas control piston plate 503, and a control groove 5050 is opened on the upward control column 505 in the vertical direction, and one end of the upward control cross bar 506 is fixed on the movable plate 6 The up-down control crossbar 506 is engaged with the control groove 5050, and the down-down control column 504 is fixedly installed above the gas control piston plate 503. A second rack portion 5040 is provided above one side of the down-down control column 504. The down-down control bracket 510 adopts an inverted L-shaped structure. One end of the down-down control bracket 510 is fixed on the movable plate 6, so that it can be lifted and lowered along with the lifting and lowering of the movable plate 6. A first rack portion 5100 is provided above one side of the down-down control bracket 510.

[0056] A control gear 512 is rotatably mounted inside the air control device 502 between the descending control bracket 510 and the descending control column 504 through a shaft 511. The control gear 512 is always meshed and connected with the second rack portion 5040. The first rack portion 5100 can be meshed and connected with the control gear 512 after the descending control bracket 510 descends to a predetermined position.

[0057] Working principle:

[0058] When the floating body 3 is kept at a relatively small floating stroke, the pressure control component will not work. The air control piston plate 503 controls the controllable capsule 500 to expand within a predetermined range under the elastic force of the elastic air pressure balance device 508. At this time, the effective space between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7 is small. When the moving stroke of the active piston 14 is the same, the moving stroke of the passive piston 16 is relatively increased, thereby achieving the effect of extended range compensation:

[0059] When the floating stroke of the float 3 is large, the pressure control component takes effect. At this time, when the float 3 moves upward beyond the threshold, it drives the upward control cross bar 506 to move to the top position of the control groove 5050, and when it continues to move upward, the upward control cross bar 506 pulls the air control piston plate 503 upward to compress the elastic air pressure balance device 508, so that the air pressure in the air chamber 507 is reduced, the controllable capsule 500 shrinks, and the effective space between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7 is increased. When the moving stroke of the active piston 14 is the same, the moving stroke of the passive piston 16 is relatively reduced, thereby achieving the effect of stroke reduction compensation;

[0060] When the floating body 3 descends beyond the threshold, it drives the descending control bracket 510 to descend to the meshing position of the first rack part 5100 and the control gear 512, and when it continues to descend, under the linkage action of the first rack part 5100, the control gear 512 and the second rack part 5040, it drives the descending control column 504 to move upward, so that the air control piston plate 503 moves upward. At this time, similarly, the elastic air pressure balance device 508 is compressed, the air pressure in the air chamber 507 is reduced, the controllable capsule 500 shrinks, and the effective space between the active piston 14 and the passive piston 16 in the kinetic energy transmission cylinder 7 increases. When the moving stroke of the active piston 14 is the same, the moving stroke of the passive piston 16 is relatively reduced, thereby achieving the effect of reduced stroke compensation;

[0061] In summary, by adopting the compensation control system 5, it is possible to achieve stroke compensation for the floating body 3 when the floating up and down amplitude is too large or too small due to the influence of waves, so that the reciprocating motion stroke of the passive piston rod 15 is within a reasonable range, thereby achieving the effect of reducing the influence of wave energy and improving the efficiency and stability of power generation. In addition, the compensation control system 5 does not need to be controlled by an additional power device, that is, it achieves the effect of self-compensation, which not only greatly improves energy saving, but also greatly reduces the production cost and application cost of the equipment.

[0062] Example 2

[0063] like Figure 7 As shown, this embodiment provides a technical solution: a wave energy power generation device. In order to reduce the erosion effect of waves on the connecting component 4, on the basis of embodiment 1, in this embodiment, the connecting component 4 includes a common part 401 and a branch cable 400, wherein the common part 401 is arranged above the active piston rod 13, and is fixedly connected to the active piston rod 13 through a main cable 402. A total of multiple branch cables 400 are provided, and multiple branch cables 400 are radially connected between the common part 401 and the floating body 3. Such a structural arrangement enables a soft connection between the active piston rod 13 and the floating body 3, which can effectively reduce the erosion effect of waves on the connecting component 4, and the structure of multiple branch cables 400 radially connected to the floating body 3 makes the force transmission of the floating body 3 more uniform.

[0064] Furthermore, if Figure 7 As shown, due to the soft connection between the active piston rod 13 and the floating body 3, the floating body 3 cannot respond to the active piston rod 13 in time when it is descending. In order to solve this problem, in this embodiment, a fixed seat 11 is installed above the main body 1, and the top of the active piston rod 13 passes through the fixed seat 11. A plurality of downward traction components 12 are connected between the movable plate 6 and the fixed seat 11. The downward traction components 12 are elastic. When the floating body 3 floats up, the downward traction components 12 are stretched. When the floating body 3 descends, the movable plate 6 is pulled downward under the elastic action of the downward traction components 12 themselves.

[0065] Specifically, Figure 4 As shown, in order to realize the conversion of electric energy, in this embodiment, a transmission chamber 200, a gear chamber 201 and a generator set 10 are provided inside the electric energy conversion part 2, wherein a transmission assembly 8 is arranged in the transmission chamber 200, and a transmission gear set 9 is installed in the gear chamber 201, and the transmission gear set 9 is connected to the generator set 10 in transmission. The reciprocating motion of the passive piston rod 15 is converted into a circular motion through the transmission assembly 8, and is transmitted to the generator set 10 through the transmission gear set 9 for power generation, thereby realizing the process of converting wave energy into mechanical energy and then into electric energy.

[0066] Specifically, Figure 5 - Figure 6 As shown, in order to convert the reciprocating motion of the passive piston rod 15 into circular motion, in this embodiment, the transmission assembly 8 includes a shaft disc 800 and a connecting rod 801, wherein one end of the connecting rod 801 is movably connected to one end of the passive piston rod 15 through a flexible joint 802, and the other end of the connecting rod 801 is rotatably connected to the eccentric shaft 803 on the surface of the shaft disc 800, and the central axis of the shaft disc 800 is connected to the driving shaft of the transmission gear set 9.

[0067] Specifically, Figure 1 - Figure 4 As shown, in order to protect the main body 1, in this embodiment, an underwater first-stage wave-breaking board 100 is provided on one side of the main body 1, and an underwater second-stage wave-breaking board 101 is provided above one side of the main body 1, wherein the underwater first-stage wave-breaking board 100 and the underwater second-stage wave-breaking board 101 adopt an arc structure on the side corresponding to the ocean.

[0068] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A wave energy power generation device, characterized in that: It includes: A main body (1) is arranged below the surface of a water body, a kinetic energy transmission cylinder (7) is installed inside the main body (1), the kinetic energy transmission cylinder (7) adopts an L-shaped structure, an active piston (14) is movably installed inside the vertical end of the kinetic energy transmission cylinder (7), an active piston rod (13) is connected to the active piston (14), and a passive piston (16) is movably installed inside the horizontal end of the kinetic energy transmission cylinder (7), and a passive piston rod (15) is connected to the passive piston (16); A floating body (3) floating on the water surface, wherein the bottom of the floating body (3) is connected to the top of the active piston rod (13) via a connecting component (4); An electric energy conversion part (2) is arranged on one side of the main body (1), and the electric energy conversion part (2) is connected to the passive piston rod (15) through a transmission assembly (8); A compensation control system (5) is mounted on the main body (1) and is used to perform compensation control on the effective space inside the kinetic energy transmission cylinder (7).

2. A wave energy power generation device according to claim 1, characterized in that: The compensation control system (5) comprises: A controllable capsule (500) is arranged in the kinetic energy transmission cylinder (7), and the controllable capsule (500) can shrink and expand under external constraint control; An air control device (502), which is arranged outside the main body (1) and is used to control the contraction and expansion of the controllable capsule (500); The air control device (502) is connected to the controllable capsule (500) via an air control pipeline (501).

3. A wave energy power generation device according to claim 2, characterized in that: An air control piston plate (503) is movably installed inside the air control device (502), and the lower part of the interior of the air control device (502) is divided into an air chamber (507) by the air control piston plate (503). The air control pipeline (501) is connected to the air chamber (507), so that the controllable capsule (500) is connected to the inside of the air chamber (507). A pressure control component is provided above the air control device (502), and the pressure control component is used to control the movement of the air control piston plate (503).

4. A wave energy power generation device according to claim 3, characterized in that: A plurality of fixing plates (509) are installed inside the air control device (502) at a position above the air control piston plate (503), and the fixing plates (509) are connected to the air control piston plate (503) via an elastic air pressure balancing device (508).

5. A wave energy power generation device according to claim 1, characterized in that: A movable plate (6) capable of moving up and down following the active piston rod (13) is installed on the top of the active piston rod (13). The pressure control assembly comprises: An upward control column (505) is fixedly mounted above the gas control piston plate (503), and a control groove (5050) is provided on the upward control column (505) in a vertical direction; An upward control cross bar (506), one end of which is fixed on the movable plate (6) so that it can rise and fall along with the rise and fall of the movable plate (6), and the other end of the upward control cross bar (506) is engaged in the control groove (5050); A descending control column (504) is fixedly mounted above the gas control piston plate (503), and a second rack portion (5040) is provided above one side of the descending control column (504); A descending control bracket (510) adopts an inverted L-shaped structure, one end of the descending control bracket (510) is fixed to the movable plate (6) so that it can be raised and lowered following the raising and lowering of the movable plate (6), and a first rack portion (5100) is provided above one side of the descending control bracket (510); In which, a control gear (512) is rotatably installed at a position between the downward control bracket (510) and the downward control column (504) inside the air control device (502), via a shaft (511); the control gear (512) is always meshed and connected with the second rack portion (5040); and the first rack portion (5100) can be meshed and connected with the control gear (512) after the downward control bracket (510) descends to a predetermined position.

6. A wave energy power generation device according to claim 5, characterized in that: The connecting component (4) comprises: A common component (401) which is disposed above the active piston rod (13) and is fixedly connected to the active piston rod (13) via a main cable (402); A plurality of branch cables (400) are provided, and the plurality of branch cables (400) are radially connected between the common component (401) and the floating body (3).

7. A wave energy power generation device according to claim 6, characterized in that: A fixing seat (11) is installed above the main body (1), the top of the active piston rod (13) passes through the fixing seat (11), and a plurality of downward traction components (12) are connected between the movable plate (6) and the fixing seat (11), and the downward traction components (12) are elastic.

8. A wave energy power generation device according to claim 1, characterized in that: The electric energy conversion unit (2) is provided with a transmission chamber (200), a gear chamber (201) and a generator set (10) therein, wherein the transmission assembly (8) is arranged in the transmission chamber (200), a transmission gear set (9) is installed in the gear chamber (201), the transmission gear set (9) is in transmission connection with the generator set (10), and the reciprocating motion of the passive piston rod (15) is converted into circular motion through the transmission assembly (8).

9. A wave energy power generation device according to claim 8, characterized in that: The transmission assembly (8) comprises a shaft disc (800) and a connecting rod (801), wherein one end of the connecting rod (801) is movably connected to one end of the passive piston rod (15) via a flexible joint (802), the other end of the connecting rod (801) is rotationally connected to an eccentric shaft (803) on the surface of the shaft disc (800), and the central shaft of the shaft disc (800) is connected to the drive shaft of the transmission gear set (9).

10. A wave energy power generation device according to claim 1, characterized in that: A first underwater wave-breaking board (100) is provided on one side of the main body (1), and a second underwater wave-breaking board (101) is provided above one side of the main body (1), wherein the first underwater wave-breaking board (100) and the second underwater wave-breaking board (101) have an arc-shaped structure on the side corresponding to the ocean.

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