A wave energy power generation device for power supply of ocean buoys
A power generation device and wave energy technology, applied in ocean energy power generation, battery circuit devices, circuit devices, etc., can solve problems such as short service life, increased maintenance costs for battery replacement, and higher buoy use costs.
Active Publication Date: 2020-10-20
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
However, this type of power supply equipment is expensive, and compared with the buoy itself, its service life is too short, which greatly limits the final service life and performance of the buoy, and also increases the maintenance cost of battery replacement.
Unable to meet long-term operation requirements in the open sea
[0004] At present, the relatively mature engineering application is to use solar power generation equipment for power supply, but solar power generation panels cannot work at night, and are affected by objective factors such as weather, bird droppings, and salt spray corrosion during the day
Due to the large size, complex structure, and high installation and maintenance requirements of wind power equipment, the cost of application in the remote sea environment is extremely high
Therefore, this kind of "new energy" power supply equipment has further pushed up the cost of using buoys.
Method used
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[0059] As an implementation, considering that the power supply device is integrated with the streamline drifting or submersible buoy, its sealed shell 1 is prone to instability and rollover under the action of fluctuation excitation. In order to ensure the normal operation of the pendulum structure, a shaft hinge mechanism can be designed in the middle of the sealed space . A simplified schematic of the design is shown in Figure 6 As shown, the shaft 1-1 is fixedly connected with the sealed casing 1, and there is no relative movement. The shaft 1-1 and the piezoelectric spring connecting rod 2-1 are assembled together through a specific bearing, and the enlarged schematic diagram of the details is shown in Figure 7 shown. At this time, once the sealing shell 1 drives the shaft 1-1 to roll over, due to the existence of the bearing, the entire gravity spring pendulum structure can still maintain its own state. The disadvantage of this design is that the pendulum structure o...
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The embodiment of the invention discloses a wave fluctuation energy power generation device for ocean buoy power supply, and relates to the technical field of ocean engineering equipment. The wave energy power generation device is high in reliability, easy to maintain, low in use cost and high in power generation power. The device comprises a sealing shell, a connecting rod, a piezoelectric spring, a pendulum ball mass block, an interface circuit and an energy storage and management unit; the connecting rod is divided into two sections of an upper end and a lower end, the upper end of the connecting rod is hinged to the inner wall of the sealing shell, and the lower end of the connecting rod is fixedly connected with the pendulum ball mass block; and the piezoelectric spring is composed ofa piezoelectric metal clamp, or the plurality of piezoelectric metal clamps connected in series through a connecting device, and the surfaces of the piezoelectric metal clamps are covered partially or wholly with piezoelectric ceramic materials. The device is suitable for converting wave fluctuation energy into electric energy and storing the electric energy.
Description
technical field [0001] The invention relates to the technical field of marine engineering equipment, in particular to a wave energy generating device used for power supply of marine buoys. Background technique [0002] In ocean engineering equipment, an ocean buoy is a small but important device that mainly provides indication and measurement of the sea surface. With the continuous expansion of human activities and detection range, the number of ocean buoys is increasing day by day. For example, artificial breeding farms in offshore areas need a large number of indicating buoys to indicate the location of production tools such as fishing nets and ropes; the construction of ocean observation networks requires the use of a large number of Argo buoys (ARGO buoys); in addition, wired observation nodes also need emergency power supplies Mark the location in case the cable breaks causing additional loss. [0003] Currently, most buoys are battery powered or emergency powered. H...
Claims
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IPC IPC(8): F03B13/14H02N2/18H02J7/32
CPCF03B13/14H02J7/32H02N2/185H02N2/186Y02E10/30
Inventor 吴义鹏卞侃裘进浩季宏丽周圣鹏张超
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS