Wave energy power plant

Abstract

This invention relates to a mechanical device, and more particularly to a wave energy generation device, comprising a housing, an inertial mass, at least two sets of first energy conversion elements, and at least one set of second energy conversion elements. Each first energy conversion element includes a first rope, a first pulley, and a first generator. One end of the first rope is connected to the inertial mass, and the other end of the first rope passes over the first pulley and wraps around the drive shaft of the first generator. Each second energy conversion element includes a second rope, a second pulley, and a second generator. One end of the second rope is connected to the inertial mass, and the other end of the second rope passes over the second pulley and wraps around the drive shaft of the second generator. The portion of the second rope located between the inertial mass and the second pulley is vertically arranged. This invention avoids seawater corrosion, has higher reliability, a wider range of applications, and higher energy utilization.

Description

Technical Field

[0001] This invention relates to a mechanical equipment, and more particularly to a wave energy power generation device. Background Technology

[0002] Wave energy generation equipment mainly consists of an energy absorption device, an energy conversion device, and an energy output device. The energy absorption device absorbs wave energy, the energy conversion device transmits the force generated by the wave energy to the energy output device, and the energy output device, i.e., the generator, converts mechanical energy into electrical energy. In existing wave energy generation equipment, the energy absorption device, energy conversion device, and energy output device are all exposed to seawater, making them susceptible to seawater corrosion, resulting in poor operational reliability. Furthermore, they can only move in a single axis direction, leading to low wave energy utilization. Summary of the Invention

[0003] The purpose of this invention is to provide a wave energy power generation device that can avoid seawater corrosion, has higher reliability, wider applicability, and higher energy utilization rate.

[0004] To address the aforementioned technical problems, this application provides the following technical solution: This invention discloses a wave energy generation device, comprising a shell, an inertial mass, at least two sets of first energy conversion elements, and at least one set of second energy conversion elements. The shell is a closed body that floats on water. When the shell is subjected to an external force, the inertial mass moves relative to the shell. The inertial mass, the first energy conversion elements, and the second energy conversion elements are all disposed within the shell. The first energy conversion element includes a first rope, a first pulley, and a first generator. The first pulley and the first generator are in the same plane, which forms a first plane. The inertial mass is located below the first plane. The axial direction of the first pulley is parallel to the axial direction of the first generator. One end of the first rope is connected to the inertial mass, and the other end of the first rope passes around the first pulley and wraps around the drive shaft of the first generator. The portion of the first rope located between the inertial mass and the first pulley is inclined. The connection points of the first ropes of different sets of first energy conversion elements with the inertial mass are located at different positions on the inertial mass. The second energy conversion element includes a second rope, a second pulley, and a second generator. The second pulley and the second generator are in the same plane, and the plane containing the second pulley and the second generator is a second plane. The inertial mass is located above the second plane. The axial direction of the second pulley is parallel to the axial direction of the second generator. One end of the second rope is connected to the inertial mass, and the other end of the second rope passes around the second pulley and is wound around the drive shaft of the second generator.

[0005] The wave energy generation device of the present invention further includes a first support platform, a second support platform, and a support rod. The first support platform and the second support platform are parallel to each other. The support rod is connected between the first support platform and the second support platform. The first pulley and the first generator are both disposed on the first support platform. The second pulley and the second generator are both disposed on the second support platform. The inertial mass body is located between the first support platform and the second support platform. The first support platform is connected to the shell.

[0006] The wave energy generation device of the present invention includes a first energy conversion element further comprising a first tension spring and a third pulley, wherein the third pulley is coaxially arranged with the first pulley, one end of the first tension spring is connected to a second support platform, and the first rope passes around the drive shaft of the first generator and then passes around the third pulley to connect to the other end of the first tension spring. The second energy conversion element further comprises a second tension spring and a fourth pulley, wherein the second tension spring is disposed on the second support platform, one end of the second tension spring is connected to the second support platform, and the second rope passes around the drive shaft of the second generator and then passes around the fourth pulley to connect to the other end of the second tension spring.

[0007] The wave energy generation device of the present invention, wherein the first support platform is a regular hexagonal plate, and the first energy conversion element is provided in three sets, and the first pulleys of the three sets of the first energy conversion element are respectively arranged at intervals close to the edge of one of the first support platforms.

[0008] The present invention relates to a wave energy generation device, wherein the inertial mass body is a sphere.

[0009] The wave energy generation device of the present invention further includes a connecting column, wherein the first support platform and the shell are connected to each other through the connecting column.

[0010] Compared with the prior art, the wave energy power generation device of the present invention includes a shell, an inertial mass, at least two sets of first energy conversion elements, and at least one set of second energy conversion elements. The connection points of the first ropes of different sets of first energy conversion elements with the inertial mass are located at different positions, and the portion of the first rope between the inertial mass and the first pulley is inclined. Therefore, when waves act on the shell, the first and second energy conversion elements can convert wave energy from multiple directions into electrical energy, improving energy utilization. Furthermore, since the inertial mass, the first energy conversion elements, and the second energy conversion elements are all housed inside the shell, they are protected from seawater corrosion, improving operational reliability and broadening the scope of application.

[0011] The wave energy generation device of the present invention will now be described in detail with reference to the accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the wave energy generation device of the present invention; Figure 2 This is a schematic diagram of the wave energy generation device of the present invention after the shell is removed. Detailed Implementation

[0013] like Figure 1 , Figure 2 As shown, the present invention discloses a wave energy generation device, comprising a shell 11, an inertial mass 12, two or more sets of first energy conversion elements 13, and one or more sets of second energy conversion elements 14. The shell 11 is a closed body that floats on the water surface. The inertial mass 12, the first energy conversion elements 13, and the second energy conversion elements 14 are all disposed within the shell 11. The first energy conversion element 13 includes a first rope 131, a first pulley 132, and a first generator 133. The first pulley 132 and the first generator 133 are in the same plane, and the plane containing the first pulley 132 and the first generator 133 is a first plane. The inertial mass 12 is located below the first plane. The axial direction of the first pulley 132 is parallel to the axial direction of the first generator 133. One end of the first rope 131 is connected to the inertial mass 12, and the other end of the first rope 131 passes around the first pulley 132 and then winds around the drive shaft of the first generator 133. The movement of the first rope 131 drives the first generator 133. The drive shaft of motor 133 rotates, and the first generator 133 generates electricity. The portion of the first rope 131 located between the inertial mass 12 and the first pulley 132 is inclined. The connection points of the first rope 131 and the inertial mass 12 of different groups of first energy conversion elements 13 are located at different positions. The second energy conversion element 14 includes a second rope 141, a second pulley 142, and a second generator 144. The second pulley 142 and the second generator 144 are located in the same plane, which is the second plane. The inertial mass 12 is located above the second plane. The axial direction of the second pulley 142 is parallel to the axial direction of the second generator 144. One end of the second rope 141 is connected to the inertial mass 12, and the other end of the second rope 141 passes around the second pulley 142 and then wraps around the drive shaft of the second generator 144. The movement of the second rope 141 drives the drive shaft of the second generator 144 to rotate, and the second generator 144 generates electricity. Specifically, both the first generator 133 and the second generator 144 are permanent magnet generators.

[0014] In this invention, the wave energy power generation device has a shell 11 that floats on the water surface during operation. When there are no waves, the inertial mass 12 remains stationary in a balanced position under the action of the first rope 131 and the second rope 141. When the shell 11 is subjected to wave forces, it undergoes multi-directional motions such as heaving, swaying, and rolling. The inertial mass 12 has a large mass, and its motion pattern differs from that of the shell 11, causing changes in the relative position between the shell 11 and the inertial mass 12. Specifically, when the shell 11 is subjected to waves from different directions, the relative motion between the shell 11 and the inertial mass 12 causes the inertial mass 12 to stretch the ropes of some energy conversion elements. When the ropes are stretched, they drive the corresponding generator to rotate forward through pulleys, generating electricity. Through the parallel rope mechanism, the internal mechanical structure of the wave energy power generation device absorbs wave energy in multiple directions, including swaying, heaving, and rolling, and the generator connected by the parallel rope mechanism converts the wave energy into electrical energy. This invention discloses a wave energy generation device. It includes a housing 11, an inertial mass 12, two or more sets of first energy conversion elements 13, and one or more sets of second energy conversion elements 14. The connection points of the first ropes 131 of different sets of first energy conversion elements 13 with the inertial mass 12 are located at different positions. The portion of the first rope 131 located between the inertial mass 12 and the first pulley 132 is inclined. Therefore, when waves act on the housing 11, the first energy conversion elements 13 and second energy conversion elements 14 can convert wave energy from multiple directions into electrical energy, improving energy utilization. Furthermore, since the inertial mass 12, first energy conversion elements 13, and second energy conversion elements 14 are all housed within the housing 11, they are protected from seawater corrosion, improving operational reliability and broadening the applicability.

[0015] Optionally, the wave energy generation device of the present invention further includes a first support platform 134, a second support platform 135, and a support rod 136. The first support platform 134 and the second support platform 135 are parallel to each other, and the support rod 136 connects the first support platform 134 and the second support platform 135. A first pulley 132 and a first generator 133 are both disposed on the first support platform 134, and a second pulley 142 and a second generator 144 are both disposed on the second support platform 135. An inertial mass body 12 is located between the first support platform 134 and the second support platform 135. The first support platform 134 is connected to the housing 11. Specifically, multiple support rods 136 are provided, and the second support platform 134 is connected to the bottom of the housing 11.

[0016] Optionally, the first energy conversion element 13 further includes a first tension spring 138 and a third pulley 137. The third pulley 137 is coaxially arranged with the first pulley 132. One end of the first tension spring 138 is connected to the second support platform 135. The first rope 131 passes around the drive shaft of the first generator 133 and then passes around the third pulley 137 to connect to the other end of the first tension spring 138. Each first tension spring 138 is arranged below the first pulley 132 of the same group of first energy conversion elements 13. Each first tension spring 138 is arranged approximately vertically. The second energy conversion element 14 further includes a second tension spring 146 and a fourth pulley 147. The fourth pulley 147 is coaxially arranged with the second pulley 142. The second tension spring 146 is arranged on the second support platform 135. One end of the second tension spring 146 is connected to the second support platform 135. The second rope 141 passes around the drive shaft of the second generator 144, passes around the fourth pulley 147, and then connects to the other end of the second tension spring 146. When the first rope 131 is stretched and drives the first generator 133 to rotate via the first pulley 132, the first generator 133 rotates forward. At this time, the first rope 131 stretches the first tension spring 138. When the wave changes and the force exerted on the first rope 131 by the inertial mass 12 disappears, the first tension spring 138 contracts. The first tension spring 138 drives the first generator 133 to rotate in the opposite direction through the first rope 131 to generate electricity, and at the same time drives the inertial mass 12 to reset. Due to the arrangement of the first tension spring 138 and the second tension spring 146, it is convenient for the inertial mass 12 to reset. At the same time, during the reset process of the inertial mass 12, electricity can also be generated through the generator, further improving the utilization efficiency of wave energy.

[0017] Optionally, the first support platform 134 is a regular hexagonal plate, and the first energy conversion element 13 is provided in three sets. The first pulleys 132 of the three sets of first energy conversion elements 13 are respectively arranged close to the edge of one of the first support platforms 134 at intervals. The first support platform 134 is a regular hexagonal plate, which facilitates the uniform installation of the first energy conversion elements 13.

[0018] Optionally, the inertial mass 12 is a sphere.

[0019] Optionally, it also includes a connecting column 15, through which the first support platform 134 and the housing 11 are interconnected.

Claims

1. A wave energy generation device, characterized in that: The system includes a shell (11), an inertial mass (12), at least two sets of first energy conversion elements (13), at least one set of second energy conversion elements (14), a first support platform (134), and a second support platform (135). The shell (11) is a closed body that floats on the water surface. When the shell (11) is subjected to an external force, the inertial mass (12) moves relative to the shell (11). The inertial mass (12), the first energy conversion elements (13), and the second energy conversion elements (14) are all disposed inside the shell (11). The first energy conversion element (13) includes a first rope (131), a first pulley (132), and a first generator (135). 3) The first pulley (132) and the first generator (133) are in the same plane. The plane containing the first pulley (132) and the first generator (133) is the first plane. The inertial mass (12) is located below the first plane. The axial direction of the first pulley (132) is parallel to the axial direction of the first generator (133). One end of the first rope (131) is connected to the inertial mass (12). The other end of the first rope (131) passes around the first pulley (132) and then wraps around the drive shaft of the first generator (133). The first rope (131) is located between the inertial mass (12) and the first pulley (132). The first energy conversion element (13) of different groups is partially tilted, and the connection points of the first rope (131) and the inertial mass (12) are located at different positions of the inertial mass (12). The second energy conversion element (14) includes a second rope (141), a second pulley (142), and a second generator (144). The second pulley (142) and the second generator (144) are in the same plane. The plane in which the second pulley (142) and the second generator (144) are located is the second plane. The inertial mass (12) is located above the second plane. The axial direction of the second pulley (142) and the axial direction of the second generator (144) are parallel to each other. The second rope (141) is connected at one end to the inertial mass (12), and the other end of the second rope (141) passes around the second pulley (142) and then winds around the drive shaft of the second generator (144). The first pulley (132) and the first generator (133) are both mounted on the first support platform (134), and the second pulley (142) and the second generator (144) are both mounted on the second support platform (135). The inertial mass (12) is located between the first support platform (134) and the second support platform (135). The first energy conversion element (13) also includes a first tension spring (138) and a third pulley (137).The third pulley (137) is coaxially arranged with the first pulley (132). One end of the first tension spring (138) is connected to the second support platform (135). The first rope (131) passes around the drive shaft of the first generator (133), then passes around the third pulley (137), and connects to the other end of the first tension spring (138). The second energy conversion element (14) also includes a second tension spring (146) and a fourth pulley (147). The second tension spring (146) is arranged on the second support platform (135), with one end connected to the second support platform (135). The second rope (141) passes around the drive shaft of the second generator (144), then passes around the fourth pulley (147), and connects to the other end of the second tension spring (146).

2. The wave energy generation device according to claim 1, characterized in that: It also includes a support rod (136), the first support platform (134) and the second support platform (135) are parallel to each other, the support rod (136) is connected between the first support platform (134) and the second support platform (135), and the first support platform (134) is connected to the housing (11).

3. The wave energy generation device according to claim 2, characterized in that: The first support platform (134) is a regular hexagonal plate. The first energy conversion element (13) is provided in three sets. The first pulleys (132) of the three sets of the first energy conversion element (13) are respectively arranged close to the edge of one of the first support platforms (134) at intervals.

4. The wave energy generation device according to claim 1, characterized in that: The inertial mass (12) is a sphere.

5. The wave energy generation device according to any one of claims 1-4, characterized in that: It also includes a connecting column (15), through which the first support platform (134) and the housing (11) are interconnected.

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