[0014] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0015] Such as Figure 1-Figure 4 As shown, the vortex-induced vibration tidal current energy power generation device of this embodiment includes: a vortex-induced vibration energy harvesting device, an artificial muscle power generation unit, and circuit components; the vortex-induced vibration energy harvesting device includes a vibrator 1, a vibrator bracket 2, a support frame 3, and a spring 4 and the guide rod 5, the support frame 3 is an inverted U-shaped structure, the vibrator support 2 is a symmetrical frame structure, the upper and lower ends of the vibrator support 2 are elastically connected to the support frame 3 by springs 4, and the guide rod 5 is fixed on the vibrator support On the upper part of 2, the guide rod 5 passes through the top of the support frame 3. The artificial muscle power generation group includes a plurality of power generation units stacked together, and the power generation unit includes a ring-shaped outer frame 6, an inner frame 7 and an artificial muscle film 8. 6 is fixed on the top of the support frame 3, the artificial muscle membrane 8 is fixed between the annular outer frame 6 and the inner frame 7, the artificial muscle membrane 8 is fixed on the top of the guide rod 5 through the inner frame 7, and the two artificial muscle membranes 8 The surface is coated with a flexible electrode layer. Two adjacent ring-shaped outer frames 6 are stacked together, and two adjacent inner frames 7 are stacked together. The circuit assembly 9 includes a charging circuit 91 and an energy storage circuit 92. The charging circuit 91 includes The discharge power supply 911 and the first switch 912 are connected together. The discharge power supply 911 and the first switch 912 are respectively connected to the two flexible electrode layers of the artificial muscle membrane 8. The energy storage circuit 92 includes a storage battery 921 and a second switch 922 connected together , The battery 921 and the second switch 922 are respectively connected to the two flexible electrode layers of the artificial muscle membrane 8.
[0016] Specifically, the vortex-induced vibration tidal current power generation device of this embodiment elastically connects the vibrator bracket 2 to the support frame 3 through the spring 4. When the vibrator 1 reciprocates up and down under the action of the tidal current, the vibrator bracket 2 will follow The upper and lower reciprocating movement drives the guide rod 5 and the inner frame 7 fixed on the guide rod 5 to reciprocate up and down. The annular outer frame 6 is in a fixed state. When the guide rod 5 reciprocates up and down, it is set on the inner frame and the outer ring The artificial muscle film 8 between the frames 6 is in a stretched or contracted state. The two surfaces of the artificial muscle film 8 are coated with flexible electrode layers. The artificial muscle film 8 is an insulating material and is coated with movable flexible electrode layers on both sides. The two flexible electrode layers are equivalent to two capacitor plates, which can be equivalent to a parallel plate variable capacitor. When the guide rod 5 moves up, the artificial muscle membrane 8 is in a stretched state. At this time, the first switch 912 Turn on, the charging circuit 91 is closed, the thickness of the artificial muscle membrane 8 becomes smaller, the distance between the two flexible electrode layers becomes smaller, the capacitance of the artificial muscle membrane 8 becomes larger, and the external mechanical energy is converted into the elastic strain energy of the artificial muscle membrane 8. ; When the guide rod 5 moves down, the artificial muscle membrane 8 returns to its natural state, the first switch 912 is closed, the charging circuit 91 is disconnected, the distance between the two flexible electrode layers becomes larger, and the capacitance of the artificial muscle membrane 8 becomes smaller , The electric field force does negative work, the elastic strain energy contained in the artificial muscle film 8 decreases, the voltage between the two flexible electrode layers increases, and the electric energy increases. The elastic strain energy of the artificial muscle film 8 is converted into electric energy, and the electric energy is stored in the battery 921 in. In the specific implementation process, depending on the flow velocity of ocean currents, the diameter and density of the vibrator 1 and the elastic modulus and length of the spring 4 can be selected to cause the vibrator 1 to generate vortex-induced vibration and drive the vibrator support 2 to reciprocate up and down. When the guide rod 5 moves down, the second switch 922 is turned on, and the energy storage circuit 92 is closed. The elastic strain energy contained in the artificial muscle membrane 8 is converted into electric energy and stored in the battery 921 of the energy storage circuit 92. The artificial muscle membrane 8 The natural state is restored. When the guide rod 5 moves upward, the second switch 922 is closed and the energy storage circuit 92 is disconnected to prevent the loss of electric energy.
[0017] Further, in order to guide the guide rod 5 during movement, a cross beam 31 is provided at the upper end of the support frame 3, and the guide rod 5 is inserted through the cross beam 31 through a guide sleeve 51. Specifically, by providing the cross beam 31 and the guide sleeve 51, the guide rod 5 can be maintained to play a guiding role for the guide rod 5 when it reciprocates up and down in the vertical direction, thereby effectively reducing the loss of kinetic energy.
[0018] Furthermore, in order to more effectively reduce the loss of kinetic energy, guide rails 32 are provided on both sides of the support frame 3, and sliders 21 are provided on both sides of the vibrator bracket 2. Specifically, by providing the guide rail 32 and the sliding block 21, the vibrator support 2 can be maintained to move along the guide rail 32 in the vertical direction, which effectively reduces the loss of kinetic energy.
[0019] Based on the above technical solution, preferably, multiple layers of aluminum foil paper (not shown) are provided on the ring-shaped outer frame 6, and the aluminum foil paper is connected to the corresponding flexible electrode layer. Specifically, the aluminum foil paper can fix the two flexible electrode layers of the artificial muscle film 8 and the charging circuit 91 well.
[0020] The vortex-induced vibration tidal current power generation device of this embodiment can effectively convert external kinetic energy into the elastic strain energy of the artificial muscle power generation set by arranging the vortex-induced vibration energy harvesting device, artificial muscle power generation group and circuit components, and then the artificial muscle The elastic strain energy of the generating unit is converted into electric energy and stored in the battery; by setting the beam and the guide sleeve, the vertical movement of the guide rod can be effectively maintained and the loss of kinetic energy can be reduced; by setting the guide rail on the support frame, the vibrator bracket The setting of the slider can effectively maintain the vibrator bracket to move in the vertical direction, and more effectively reduce the loss of kinetic energy; by adding aluminum foil to the outer frame, the two flexible electrode layers can be effectively connected to the circuit assembly. Prevent the circuit from falling off; by connecting the DC battery and the first switch with the aluminum foil paper of the ring outer frame, all the artificial muscle membranes can be conveniently charged; by setting the energy storage circuit, the electric energy can be effectively collected and stored.
[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
