Fully enclosed composite power generation device

Abstract

The present invention discloses a fully enclosed composite power generation device, which has the advantages of no need to replenish lubricants and no need for gear correction. The present invention mainly includes a shell, a hydraulic cylinder, a coil and a water flow generator inside the shell; a magnetic fluid and a piston are arranged inside the hydraulic cylinder, the coil is wound around the outside of the hydraulic cylinder, and the hydraulic cylinder and the water flow generator are connected through two return pipes and two outlet pipes to form a closed loop. When the magnetic fluid piston moves with the wave swing, it can interact with the coil to form an induced magnetic field to generate electricity through the change of magnetic field, and the magnetic fluid will flow out of the outlet pipe and pass through the water flow generator under the push of the piston, so that the water flow generator can convert hydraulic kinetic energy into electrical energy, forming a dual power generation effect.

Description

Technical Field

[0001] The present invention relates to a renewable energy power generation technology, and in particular to a fully enclosed composite power generation device that can swing with waves to generate electricity. Background Art

[0002] With the growing demand for energy in society, non-renewable resources such as coal, oil, and natural gas, which are the main sources of energy, are becoming increasingly exhausted. The greenhouse effect and negative impacts of environmental damage caused by excessive carbon dioxide emissions are becoming increasingly serious. The development and utilization of renewable energy has become one of the major research topics in today's society.

[0003] Renewable energy such as solar power generation, wind power generation and ocean power generation is the current trend of energy development. In addition to the high construction costs of solar power and wind power generation, they are also easily restricted by the environment. For example, when the sunlight is low or there is no wind, solar power and wind power generation cannot provide enough electricity. Therefore, the development of ocean energy has become one of the main research directions of renewable energy today, especially because the generation of waves is continuous and uninterrupted, and the waves generate oscillations, so that electricity can be generated through the tide.

[0004] Most of today's wave power generation equipment consists of generators, gear sets and other mechanisms, which convert the oscillating buoyancy generated by waves into electrical energy through mechanical actuation. However, this will cause the following problems: 1. Gear set parts are easily oxidized and deteriorated after contact with air. 2. Lubricants must be used to reduce friction between mechanisms, so lubricants must be replenished every once in a while, which not only requires more manpower and material resources, but also has the risk of lubricants flowing into the ocean and causing pollution during operation. 3. The meshing clearance between gears must be corrected regularly to keep the kinetic energy conversion normal. 4. Active mechanisms are all made of metal, which has the disadvantage of being easily corroded, and the cost of parts and assembly is high. Summary of the invention

[0005] In view of the above-mentioned problems of the conventional technology, the purpose of the present invention is to provide a fully enclosed composite power generation device that can swing with the waves to generate electricity and has the advantages of no need to replenish lubricants, no gear correction requirements, not easy to corrode, low cost, and dual power generation effect.

[0006] According to the purpose of the present invention, a fully enclosed composite power generation device is proposed, which includes: a shell; a hydraulic cylinder, which is arranged inside the shell, and a magnetic fluid and a piston are arranged inside the hydraulic cylinder, and the piston can be displaced between two opposite ends inside the hydraulic cylinder with swinging, wherein the piston can be a metal piston to push the magnetic fluid out of the hydraulic cylinder; a coil, which is arranged inside the shell and wound around the outside of the hydraulic cylinder, and the coil covers the moving range of the magnetic fluid piston; two return pipes, which are arranged inside the shell, and one end of each return pipe is connected to the two opposite ends of the hydraulic cylinder respectively, and the return pipe is connected to the inside of the hydraulic cylinder in one direction; two outlet pipes, which are arranged inside the shell, and each outlet pipe is connected to the inside of the hydraulic cylinder in one direction. One end of the flow pipe is connected to the two opposite ends of the hydraulic cylinder respectively, and the outlet pipe is unidirectionally connected to the inside of the hydraulic cylinder; a water flow generator is arranged inside the shell, an input end of the water flow generator is connected to the other end of each outlet pipe connected to the hydraulic cylinder, an output end of the water flow generator is connected to the other end of each return pipe connected to the hydraulic cylinder, the magnetic fluid can flow to the water flow generator through the outlet pipe under the swing of the piston, and the magnetic fluid passing through the water flow generator can flow back to the inside of the hydraulic cylinder through the return pipe; and a power storage mechanism is electrically connected to the coil and the water flow generator, wherein the magnetic fluid can be a mixture of iron oxide or magnet and oil or water respectively.

[0007] According to the above technical features, when the hydraulic cylinder swings with the waves to displace the magnetic fluid, it can interact with the coil to form a magnetic field to generate electricity, and the magnetic fluid can flow out of the outlet pipe and pass through the water flow generator under the push of the piston, so that the water flow generator can convert hydraulic kinetic energy into electrical energy, and the electrical energy generated by the coil and the water flow generator can be transmitted to the power storage mechanism for storage; and the magnetic fluid passing through the water flow generator can flow back to the inside of the hydraulic cylinder through the return pipe, so that the magnetic fluid can be continuously circulated in the closed loop formed by the hydraulic cylinder and the water flow generator for electrical energy conversion, so that the fully enclosed composite power generation device can repeat the above action through the tide, and can achieve the dual power generation effect of composite power generation using wave swing. In fact, according to Faraday's law of electromagnetic induction, as long as the magnetic field on the conductor changes, a voltage will be induced on the conductor.

[0008] Based on the above, the fully enclosed composite power generation device of the present invention can mainly have the following advantages: 1. The magnetic fluid can meet the lubrication requirements of the water flow generator to reduce the friction of the mechanism, and the magnetic fluid will not decrease when flowing in the closed loop, so there is no need to regularly replenish the lubricant, which can not only reduce the maintenance cost, but also avoid the risk of lubricant flowing into the ocean and causing pollution during operation. 2. The dual power generation effect of electric energy is mainly generated by the two means of the piston moving back and forth to form an electromagnetic field with the coil, and the fluid hydraulic kinetic energy conversion. This is a non-precision mechanical composition, unlike the conventional gear set that needs to regularly calibrate the meshing clearance. 3. Only the piston and the water flow generator are made of metal materials, the parts and assembly costs are low, and all mechanisms are set in the shell, so as to reduce the risk of mechanism corrosion. 4. The fully enclosed composite power generation device is a micro-sized device that can be installed on objects such as hulls and floating boards. The installation is quite simple and can greatly reduce the installation and maintenance costs.

[0009] According to the above technical features, the fully enclosed composite power generation device further includes four first check valves arranged inside the shell, and each of the first check valves is respectively arranged at the connection between the hydraulic cylinder and each of the return pipes and each of the outlet pipes.

[0010] According to the above technical features, the fully enclosed composite power generation device further includes a first three-way pipe and two second check valves, which are arranged inside the shell, one end of the first three-way pipe is connected to the input end of the water flow generator, and the other two ends of the first three-way pipe are respectively provided with the second check valves, and each of the second check valves is respectively connected to each of the outlet pipes.

[0011] According to the above technical features, the fully enclosed composite power generation device further includes a second three-way pipe and two third check valves, which are arranged inside the shell, one end of the second three-way pipe is connected to the output end of the water flow generator, and the other two ends of the second three-way pipe are respectively provided with the third check valves, and each of the third check valves is respectively connected to each of the return pipes.

[0012] According to the above technical features, the hydraulic cylinder includes: a cylinder barrel, in which the magnetic fluid and the piston are arranged; two fixed plates, which are arranged at opposite ends of the cylinder barrel with a relative interval, and each of the fixed plates is respectively provided with a liquid inlet hole and a liquid outlet hole connected to the interior of the cylinder barrel, each of the liquid inlet holes is respectively connected to each of the return pipes, and each of the liquid outlet holes is respectively connected to each of the outlet pipes, and the first check valve is respectively provided at the connection between the liquid inlet hole and the return pipe, and at the connection between the liquid outlet hole and the outlet pipe.

[0013] According to the above technical features, the hydraulic cylinder further includes a shaft rod, which is arranged inside the cylinder barrel, and the two opposite ends of the shaft rod are respectively connected to each of the fixing plates, and the piston is pivotally mounted on the shaft rod to be able to slide.

[0014] According to the above technical features, the hydraulic cylinder further includes a plurality of connecting columns, and two opposite ends of each connecting column are respectively connected to each fixing plate.

[0015] According to the above technical features, the shell is made of plastic or acrylic material.

[0016] According to the above technical features, the magnetic fluid further comprises a mixture of iron oxide or magnetite and oil or water respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a first schematic diagram of the fully enclosed composite power generation device of the present invention.

[0018] Figure 2 It is a second schematic diagram of the fully enclosed composite power generation device of the present invention.

[0019] Figure 3 It is a third schematic diagram of the fully enclosed composite power generation device of the present invention.

[0020] Figure 4 It is a fourth schematic diagram of the fully enclosed composite power generation device of the present invention.

[0021] Figure 5 It is a fifth schematic diagram of the fully enclosed composite power generation device of the present invention.

[0022] Figure 6 It is a schematic diagram of an embodiment of a fully enclosed composite power generation device of the present invention.

[0023] Description of the figure number:

[0024] 1000 Fully enclosed composite power generation device

[0025] 10 Housing

[0026] 20 Hydraulic cylinder

[0027] 21 Magnetic Fluid

[0028] 22 Piston

[0029] 23 Cylinder

[0030] 24 Fixing plate

[0031] 241 Liquid inlet

[0032] 242 Liquid outlet

[0033] 25 Axis

[0034] 26 Connecting column

[0035] 30 Coils

[0036] 40 Return pipe

[0037] 50 Outlet pipe

[0038] 60 Water flow generator

[0039] 61 Input

[0040] 62 Output

[0041] 70 Power storage mechanism

[0042] 80 First check valve

[0043] 90 First tee pipe

[0044] 100 Second check valve

[0045] 200 Second three-way pipe

[0046] 300 Third check valve

[0047] 2000 hull. DETAILED DESCRIPTION

[0048] Please also read Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , which are respectively the first schematic diagram, the second schematic diagram, the third schematic diagram, the fourth schematic diagram and the fifth schematic diagram of the fully enclosed composite power generation device of the present invention. The fully enclosed composite power generation device 1000 of the present invention at least includes a housing 10, a hydraulic cylinder 20, a coil 30, two return pipes 40, two outflow pipes 50, a water flow generator 60, a power storage mechanism 70, four first check valves 80, a first three-way pipe 90, two second check valves 100, a second three-way pipe 200 and two third check valves 300, wherein the housing 10 can be made of a material that can resist seawater erosion, such as plastic or acrylic material, and the hydraulic cylinder 20, the coil 30, the two return pipes 40, the two outflow pipes 50, the water flow generator 60, the power storage mechanism 70, the four first check valves 80, the first three-way pipe 90, the two second check valves 100, the second three-way pipe 200 and the two third check valves 300 are arranged inside the housing 10 to achieve the purpose of fully enclosing the mechanism.

[0049] The hydraulic cylinder 20 at least includes a magnetic fluid 21, a piston 22, a cylinder 23, two fixing plates 24, a shaft 25 and a plurality of connecting columns 26. The two fixing plates 24 are disposed at opposite ends of the cylinder 23 at intervals relative to each other, and each of the fixing plates 24 is respectively provided with a liquid inlet 241 and a liquid outlet 242 connected to the inside of the cylinder 23. The magnetic fluid 21 fills the inside of the cylinder 23, the piston 22 and the shaft 25 are disposed inside the cylinder 23, wherein the opposite ends of the shaft 25 are respectively connected to the fixing plates 24, and the piston 22 is pivoted to the shaft 25, so that the piston 22 can slide back and forth inside the cylinder 23 and between the two fixing plates 24. The plurality of connecting posts 26 are disposed between the two fixing plates 24, and two opposite ends of each connecting post 26 are respectively connected to each fixing plate 24, so as to strengthen the assembly strength of the cylinder 23 and the two fixing plates 24. The cylinder 23 can be made of acrylic material, but is not limited thereto.

[0050] The coil 30 is wound around the outside of the cylinder 23, and the coil 30 covers the moving range of the piston 22; when the fully enclosed composite power generation device 1000 swings with the waves, the piston 22 inside the hydraulic cylinder 20 moves between the two relative ends, and the magnetic fluid 21 is pushed out of the hydraulic cylinder 20. The magnetic fluid 21 is pushed by the piston 22, so that the magnetic fluid 21 and the coil 30 can interact with each other to form an induced magnetic field to generate power through the magnetic field change of the piston, such as Figure 5 As shown, this is one of the means of generating electrical energy of the present invention.

[0051] One end of each of the return pipes 40 is connected to the liquid inlet holes 241 of each of the fixing plates 24, and a first check valve 80 is provided at the connection between the return pipe 40 and the liquid inlet holes 241, so that the return pipe 40 is unidirectionally connected to the interior of the cylinder 23 in the direction toward the interior of the cylinder 23, so that the magnetic fluid 21 in the return pipe 40 can only flow into the interior of the cylinder 23 from each of the liquid inlet holes 241, and the magnetic fluid 21 inside the cylinder 23 cannot flow out from each of the liquid inlet holes 241.

[0052] One end of each of the outlet pipes 50 is connected to the liquid outlet hole 242 of each of the fixing plates 24, and the first check valve 80 is provided at the connection between the outlet pipe 50 and the liquid outlet hole 242, so that the outlet pipe 50 is unidirectionally connected to the interior of the cylinder 23 in the opposite direction toward the interior of the cylinder 23, so that the magnetic fluid 21 inside the cylinder 23 can flow out from each of the liquid outlet holes 242 to the outlet pipe 50, and the magnetic fluid 21 located in the outlet pipe 50 cannot flow into the interior of the cylinder 23.

[0053] An input end 61 of the water flow generator 60 is connected to the other end of each outlet pipe 50 connected to the hydraulic cylinder 20. In detail, the input end 61 of the water flow generator 60 is connected to one end of the first three-way pipe 90, and the other two ends of the first three-way pipe 90 are respectively connected to the other end of each outlet pipe 50 connected to the hydraulic cylinder 20, and the second check valve 100 is provided at the connection between the outlet pipe 50 and the first three-way pipe 90, so that the outlet pipe 50 is unidirectionally connected to the first three-way pipe 90 in the direction of flowing toward the input end 61 of the water flow generator 60, so that the magnetic fluid 21 located in the outlet pipe 50 can flow to the first three-way pipe 90 and pass through the water flow generator 60, and the magnetic fluid 21 already in the first three-way pipe 90 cannot flow to the outlet pipe 50.

[0054] An output end 62 of the water flow generator 60 is connected to the other end of each return pipe 40 connected to the hydraulic cylinder 20. In detail, the output end 62 of the water flow generator 60 is connected to one end of the second three-way pipe 200, and the other two ends of the second three-way pipe 200 are respectively connected to the other end of each return pipe 40 connected to the hydraulic cylinder 20, and the third check valve 300 is provided at the connection between the return pipe 40 and the second three-way pipe 200, so that the return pipe 40 is unidirectionally connected to the second three-way pipe 200 in the direction of flowing toward the cylinder barrel 23, so that the magnetic fluid 21 passing through the water flow generator 60 can flow to the return pipe 40 via the output end 62 and the second three-way pipe 200, and the magnetic fluid 21 already in the return pipe 40 cannot flow to the second three-way pipe 200.

[0055] In the above, when the fully enclosed composite power generation device 1000 swings with the waves, causing the piston 22 to move inside the cylinder 23, the magnetic fluid 21 can be pushed by the piston 22 and flow out to the outlet hole 242 of the fixed plate 24 located at one end of the cylinder 23 to the outlet pipe 50, and the magnetic fluid 21 is then transported through the outlet pipe 50 and flows through the water flow generator 60, so that the water flow generator 60 can operate by hydraulic pressure, and then the water flow generator 60 can be used to convert wave kinetic energy into electrical energy, thereby achieving another means of generating electrical energy of the present invention. The magnetic fluid 21 passing through the water flow generator 60 can flow through the return pipe 40 to the liquid inlet hole 241 of the fixed plate 24 located at one end of the cylinder 23, allowing the magnetic fluid 21 to flow back into the interior of the cylinder 23. Through the closed loop formed by the hydraulic cylinder 20 and the water flow generator 60, the water flow generator 60 can continuously generate electrical energy by using the circulating magnetic fluid 21.

[0056] The power storage mechanism 70 is electrically connected to the coil 30 and the water flow generator 60 . The power storage mechanism 70 can store the electric energy generated by the coil 30 and the water flow generator 60 , thereby forming a dual power generation effect.

[0057] Please also refer to Figure 6 , which is a schematic diagram of an embodiment of the fully enclosed composite power generation device of the present invention. The fully enclosed composite power generation device 1000 of the present invention can preferably be arranged on a hull 2000 in a lying manner. The hull 2000 can perform periodic longitudinal swaying and yaw motions at sea, so that the fully enclosed composite power generation device 1000 can capture the oscillation energy of the waves as the hull 2000 sways, and then convert the wave oscillation energy into electrical energy through the actuation of the hydraulic cylinder 20, the coil 30 and the water flow generator 60. Of course, the fully enclosed composite power generation device 1000 is not only suitable for ship navigation, but any object with periodic oscillation motion characteristics in daily life can be installed with the present invention to achieve power generation benefits, such as a floating board.

[0058] Specifically, the fully enclosed composite power generation device of the present invention can mainly have the following advantages: 1. The magnetic fluid can meet the lubrication requirements of the water flow generator to reduce the friction of the mechanism, and the magnetic fluid will not decrease when flowing in the closed loop, so there is no need to regularly replenish the lubricant, thereby reducing the maintenance cost and avoiding the risk of lubricant flowing into the ocean during operation to cause pollution. 2. The electric energy is mainly generated by two means: the piston moves back and forth to form an electromagnetic field with the coil, and the fluid hydraulic kinetic energy conversion. This is a non-precision mechanical composition, unlike the conventional gear set that requires regular correction of the meshing clearance. 3. Only the piston and the water flow generator are made of metal materials, and the parts and assembly costs are low. All mechanisms are wrapped in the shell to achieve complete sealing, thereby improving corrosion resistance and greatly reducing the failure rate caused by external factors, such as the situation where the work efficiency is reduced due to the attachment of biological organisms in the water. 4. The fully enclosed composite power generation device is a micro-sized device that can be installed on objects such as hulls and floating boards. The installation is quite simple and can greatly reduce the installation and maintenance costs.

Claims

1. A fully enclosed composite power generation device, characterized in that: It contains: a housing (10); A hydraulic cylinder (20) is disposed inside the housing (10), wherein a magnetic fluid (21) and a piston (22) are disposed inside the hydraulic cylinder (20), wherein the piston (22) can be displaced between two opposite ends inside the hydraulic cylinder (20) by swinging, so as to push the magnetic fluid (21) out of the hydraulic cylinder (20); a coil (30) disposed inside the housing (10) and wound around the outside of the hydraulic cylinder (20), and the coil (30) covers the moving range of the piston (22); Two return pipes (40) are arranged inside the housing (10), one end of each return pipe (40) is connected to two opposite ends of the hydraulic cylinder (20), and each return pipe (40) is in unidirectional communication with the interior of the hydraulic cylinder (20); Two outlet pipes (50) are arranged inside the housing (10), one end of each outlet pipe (50) is connected to two opposite ends of the hydraulic cylinder (20), and each outlet pipe (50) is in unidirectional communication with the interior of the hydraulic cylinder (20); a water flow generator (60) disposed inside the housing (10); an input end (61) of the water flow generator (60) is connected to the other end of each outlet pipe (50) connected to the hydraulic cylinder (20); an output end (62) of the water flow generator (60) is connected to the other end of each return pipe (40) connected to the hydraulic cylinder (20); the magnetic fluid (21) is pushed by the piston (22) to flow through each outlet pipe (50) to the water flow generator (60); and the magnetic fluid (21) passing through the water flow generator (60) can flow back to the inside of the hydraulic cylinder (20) through each return pipe (40); and An electricity storage mechanism (70) is electrically connected to the coil (30) and the water flow generator (60).

2. The fully enclosed composite power generation device according to claim 1, characterized in that: It further comprises four first check valves (80) which are arranged inside the housing (10), and each of the first check valves (80) is respectively arranged at the connection between the hydraulic cylinder (20) and each of the return pipes (40) and each of the outflow pipes (50).

3. The fully enclosed composite power generation device according to claim 2, characterized in that: It further comprises a first three-way pipe (90) and two second check valves (100), wherein the first three-way pipe (90) and the second check valves (100) are both arranged inside the shell (10), one end of the first three-way pipe (90) is connected to the input end (61) of the water flow generator (60), and the other two ends of the first three-way pipe (90) are respectively provided with the second check valves (100), and each of the second check valves (100) is respectively connected to each of the outlet pipes (50).

4. The fully enclosed composite power generation device according to claim 3, characterized in that: It further comprises a second three-way pipe (200) and two third check valves (300). The second three-way pipe (200) and the third check valves (300) are both arranged inside the shell (10). One end of the second three-way pipe (200) is connected to the output end (62) of the water flow generator (60). The other two ends of the second three-way pipe (200) are respectively provided with the third check valves (300), and each of the third check valves (300) is respectively connected to the return pipes (40).

5. The fully enclosed composite power generation device according to claim 4, characterized in that: The hydraulic cylinder (20) comprises: a cylinder barrel (23) in which the magnetic fluid (21) and the piston (22) are arranged; two fixing plates (24) arranged at opposite ends of the cylinder barrel (23) at intervals relative to each other, and each fixing plate (24) is respectively provided with a liquid inlet hole (241) and a liquid outlet hole (242) connected to the inside of the cylinder barrel (23), each liquid inlet hole (241) is respectively connected to each return pipe (40), and each liquid outlet hole (242) is respectively connected to each outlet pipe (50), and the first check valve (80) is respectively provided at the connection point between each liquid inlet hole (241) and each return pipe (40), and at the connection point between each liquid outlet hole (242) and each outlet pipe (50).

6. The fully enclosed composite power generation device according to claim 5, characterized in that: The hydraulic cylinder (20) further comprises a shaft (25) disposed inside the cylinder barrel (23), and two opposite ends of the shaft (25) are respectively connected to the fixing plates (24), and the piston (22) is pivotally mounted on the shaft (25) to enable sliding movement.

7. The fully enclosed composite power generation device according to claim 6, characterized in that: The hydraulic cylinder (20) further comprises a plurality of connecting columns (26), and two opposite ends of each connecting column (26) are respectively connected to each fixing plate (24).

8. The fully enclosed composite power generation device according to claim 1, characterized in that: The housing (10) is made of plastic or acrylic material.

9. The fully enclosed composite power generation device according to claim 1, characterized in that: The magnetic fluid (21) comprises a mixture of iron oxide or magnetite and oil or water.

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