Anti-overturning combined type wave energy conversion device

Abstract

The utility model discloses an anti-overturning combined type wave energy conversion device which comprises an outer shell, a sliding frame, a coil, a magnet and a friction nanometer generator, the outer shell is of a hollow structure, and the sliding frame is arranged in the outer shell and can linearly move back and forth; the coils are fixedly arranged on the upper surface and the lower surface in the outer shell; the top face and the bottom face of the sliding frame are provided with magnets used in cooperation with the coil. The friction nanometer generator is arranged in the sliding frame and generates friction charges through sliding of the sliding frame. According to the utility model, the movement of the sliding frame is promoted by using the irregularity of ocean waves to realize the power generation of the electromagnetic generator and the friction nano generator, random wave energy is easy to collect, the responsivity is high, the output is stable, and the energy conversion efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of generator technology, and specifically relates to an anti-overturning composite wave energy conversion device. Background Technology

[0002] Oceans cover more than 70% of the Earth's surface, providing a wealth of renewable energy sources, such as thermal energy, salinity gradient energy, wave energy, tidal energy, and ocean current energy. Among these, ocean wave energy is considered one of the most convenient and directly usable renewable energy sources due to its inexhaustible, widespread availability, and other advantages. Because of its high energy density and clean characteristics, wave energy has increased its potential to compete with currently used fossil fuels. Therefore, fully developing and utilizing wave energy plays a crucial role in alleviating the energy crisis and reducing environmental pollution. Under extreme wave conditions, most existing TENGs (Transient Energy Generators) lose their optimal operating condition due to excessive rotation or capsizing, resulting in a sharp drop in output. While this drawback can be mitigated by adding additional self-righting accessories or limiting cables, the device becomes bulkier, more expensive, and its wave response is reduced. There is an urgent need for a novel TENG design that performs ideally on both calm and turbulent seas to further advance the realization of the blue energy dream for TENGs. Utility Model Content

[0003] In view of the shortcomings of the prior art, this invention provides an anti-overturning composite wave energy conversion device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An anti-overturning composite wave energy conversion device includes an outer shell, a sliding frame, a coil, a magnet, and a triboelectric nanogenerator. The outer shell is a hollow structure, and the sliding frame is installed inside the outer shell and can move back and forth linearly. The coil is fixedly installed on the upper and lower surfaces inside the outer shell. Magnets that cooperate with the coil are provided on the top and bottom surfaces of the sliding frame. The triboelectric nanogenerator is installed inside the sliding frame and generates triboelectric charge through the sliding of the sliding frame.

[0006] This invention utilizes the irregularity of ocean waves to drive the movement of a sliding frame, thereby generating electricity through an electromagnetic generator and a triboelectric nanogenerator. It is easy to collect random wave energy, has high responsiveness, stable output, and high energy conversion efficiency.

[0007] Furthermore, the triboelectric nanogenerator includes a grating electrode plate and a friction plate. The grating electrode plate passes through the sliding frame and is fixedly connected to the left and right sides of the outer shell. The friction plate is set in close contact with the grating electrode plate and is fixedly connected to the sliding frame. The friction plate moves with the sliding frame and can generate charge by rubbing against the grating electrode plate at any time.

[0008] Furthermore, FEP films are attached to the upper and lower surfaces of the grating electrode plate, and rabbit hair is provided on the surface of the friction plate opposite to the grating electrode plate.

[0009] Furthermore, it also includes wheels. The sliding frame is slidably mounted inside the outer casing via wheels. The wheels are ceramic bearing wheels, which can make the sliding frame slide more sensitively.

[0010] Furthermore, the conversion device has a symmetrical structure. The symmetrical structure design allows it to function normally even after being overturned and flipped 180° in harsh marine environments, thus possessing anti-overturning capability.

[0011] The advantages of this invention are as follows: This invention combines an electromagnetic generator and a triboelectric nanogenerator using a sliding mechanism. The irregular movement of ocean waves causes the sliding frame to slide, and multiple generators can generate electricity during the sliding process. The symmetrical structure of the outer shell and the sliding frame will not lose its optimal working state due to excessive rotation or overturning, ensuring stable charge output. The ceramic bearing wheels of the sliding block are highly sensitive and can collect waves of different amplitudes over a wide range, resulting in very stable power output performance. Even after being overturned, it can still work normally with essentially unchanged performance, demonstrating good anti-overturning capability. Attached Figure Description

[0012] Figure 1 This is a perspective view of an anti-overturning composite wave energy conversion device according to this utility model;

[0013] Figure 2 This is a front view of an anti-overturning composite wave energy conversion device according to this utility model;

[0014] Figure 3 This is a perspective view of the sliding frame in an anti-overturning composite wave energy conversion device of this utility model. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings:

[0016] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. It is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientation structure and operation. Therefore, it should not be construed as a limitation of this utility model.

[0017] like Figure 1-3As shown, an anti-overturning composite wave energy conversion device includes an outer shell 1, a sliding frame 2, coils 3, magnets 4, a triboelectric nanogenerator, and wheels 7. The conversion device has a symmetrical structure. The outer shell 1 is a hollow, sealed rectangular structure (the notch on the outer shell in the attached figure is for easier observation of the internal structure and components). The sliding frame 2, a rectangular frame with a horizontally penetrating hollow section, is linearly movable inside the outer shell 1. The sliding frame 2 is slidably mounted inside the outer shell 1 via eight wheels 7 located on its front and rear or top and bottom surfaces. Tracks for the wheels 7 are provided inside the outer shell 1 to ensure smooth and fluid sliding. The coils 3 are fixedly mounted on the top and bottom surfaces inside the outer shell 1. Multiple coils can be installed on each surface depending on their size and the length of the outer shell 1, and each coil 3 has a certain spacing. The top and bottom surfaces of the sliding frame 2 are equipped with magnets 4 that cooperate with the coils 3. The movement of the magnets 4 changes the magnetic flux of the coils 3, thereby generating an electric charge in the coils. At least two magnets 4 are provided on each surface, depending on the number of coils 3. Specifically, four coils are placed on the top and bottom of the outer casing 1. From left to right, the first and third coils are connected in series, and the second and fourth coils are connected in series. These two groups of coils are then connected in parallel to an external wire for output. As the two magnets embedded in the top and bottom of the sliding frame 2 move left and right, they continuously cut magnetic lines of force, generating an AC output.

[0018] The triboelectric nanogenerator is housed within a sliding frame 2. Multiple triboelectric nanogenerators can be installed according to the height of the sliding frame 2. The triboelectric nanogenerator generates triboelectric charge through the sliding of the sliding frame 2. The triboelectric nanogenerator includes a grating electrode plate 5 with FEP films attached to its top and bottom surfaces, and a friction plate 6 with rabbit hair. The grating electrode plate 5 passes through the sliding frame 2 and is fixedly connected to the left and right sides of the outer casing 1. The friction plate 6 is fitted to the grating electrode plate 5 and fixedly connected to the sliding frame 2. The rabbit hair on the friction plate 6 contacts the FEP film on the grating electrode plate 5. The friction plate 6 has two pieces of rabbit hair, each corresponding to one of two spaced-apart FEP film-attached electrode blocks on the grating electrode plate 5. The power generation principle of the triboelectric nanogenerator is the coupling process of contact charging between the rabbit hair and the FEP film and charge transfer caused by relative sliding. Initially, the rabbit hair completely overlaps with the first electrode block of the corresponding grating electrode plate 5. As the rabbit hair slides forward from the first electrode block to the second electrode block, the overlapping position also moves forward. At this time, the rabbit hair carries a positive charge, and the FEP film carries a negative charge, thus creating a potential difference between the two adjacent electrode blocks. This drives the positive charge to flow from the first electrode block to the second electrode block, resulting in a transient current and potential difference in the external load. When the rabbit hair completely overlaps with the second electrode block, a state of electrostatic equilibrium is reached again. Similarly, when sliding in the opposite direction, a reverse current and potential difference are generated, which constitutes one power generation cycle. That is, when the sliding frame 2 slides once, each electrode block of the grating electrode plate 5 will collect double the charge.

[0019] The symmetrical arrangement and sliding frame structure in this embodiment have strong anti-overturning ability, stable charge output, and high energy conversion rate. One slide of the sliding frame can drive multiple electromagnetic generators and triboelectric nanogenerators to generate electricity, and the charge loss in the sliding mode is less. At the same time, it greatly improves the utilization rate of the space inside the shell.

[0020] In this embodiment, the coil 3 and the grating electrode plate 5 are provided with wires, and the other end of the wires is connected to the rectifier bridge. The charge generated by the coil 3 and the grating electrode plate 5 will be transferred to the rectifier bridge and converted into DC power for storage.

[0021] Although the specific embodiments of this utility model have been described and explained in detail above, it should be noted that we can make various changes and modifications to the above embodiments, but these will not depart from the spirit of this utility model and the scope set forth in the appended claims.

Claims

1. An anti-overturning combined wave energy converter, characterized in that, The device includes an outer shell (1), a sliding frame (2), a coil (3), a magnet (4), and a triboelectric nanogenerator. The outer shell (1) is a hollow structure, and the sliding frame (2) can move back and forth linearly inside the outer shell (1). The coil (3) is fixedly installed on the upper and lower surfaces inside the outer shell (1). The top and bottom surfaces of the sliding frame (2) are provided with magnets (4) that cooperate with the coil (3). The triboelectric nanogenerator is installed inside the sliding frame (2), and the triboelectric nanogenerator generates triboelectric charge through the sliding of the sliding frame (2).

2. The anti-overturning combined wave energy converter according to claim 1, characterized in that, The triboelectric nanogenerator includes a grating electrode plate (5) and a friction plate (6). The grating electrode plate (5) passes through the sliding frame (2) and is fixedly connected to the left and right sides of the outer shell (1). The friction plate (6) is attached to the grating electrode plate (5) and is fixedly connected to the sliding frame (2).

3. The anti-overturning hybrid wave energy converter of claim 2, wherein, The upper and lower surfaces of the grating electrode plate (5) are covered with FEP film, and the surface of the friction plate (6) opposite to the grating electrode plate (5) is covered with rabbit hair.

4. The anti-overturning hybrid wave energy converter according to any one of claims 1-3, characterized in that, It also includes wheels (7), and the sliding frame (2) is slidably disposed inside the outer shell (1) via the wheels (7).

5. The anti-overturning composite wave energy conversion device according to claim 4, characterized in that, The conversion device has a symmetrical structure.

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