Tubular nano generator and manufacturing method thereof

Abstract

The invention relates to the technical field of engines, in particular to a tubular nano generator and a manufacturing method thereof. The tubular nano generator comprises a power generation plate, an insulating plate, an insulating tube, a back electrode, a first conductor, a second conductor, a conductive block and a lead structure. The insulating tube, the power generation plate and the insulating plate form a closed tubular structure; the first conductor is arranged in the insulating tube in a penetrating manner and is conducted with the driving liquid filled in the insulating tube; the second conductor is arranged in the insulating tube in a penetrating manner and is conducted with the driving liquid filled in the insulating tube; and the conductive block is conducted with the first conductor or the second conductor. In the reciprocating motion process of one cycle, liquid makes contact with the internal electrode twice, the generator outputs two current pulses, liquid energy can be collected, large current is generated, and energy collection is facilitated; the output current of the generator does not need to depend on the curved liquid level of the internal liquid, and can be output in a wider frequency range and under the condition of a larger rotation angle.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and particularly to a tubular nanogenerator and a manufacturing method thereof. Background Art

[0002] For a tubular liquid-solid nanogenerator based on the interfacial effect, the magnitude of its output current is proportional to the rate of change of the liquid-solid contact area with time. Limited by the liquid motion characteristics, the output current is usually in the microampere level. For a tubular liquid-solid nanogenerator based on the bulk effect, its output current can be increased by increasing the salt ion concentration of the internal liquid, but the high-concentration salt ion liquid will simultaneously reduce the transferred charge, limit the further increase of the output current, and easily accelerate the corrosion of the internal metal electrode. Moreover, for a tubular liquid-solid nanogenerator based on the bulk effect, the magnitude of its output current depends on the curved liquid surface formed by the rapid movement of the internal liquid, and its high-performance output is limited by the regular motion (rotation angle, oscillation frequency, etc.) of the generator, and the applicable conditions are relatively strict.

[0003] In related technologies, such as the Chinese patent "Tubular Nanogenerator and Its Preparation Method" (Application No.: CN202410676521.2), it has only one internal electrode, and the generator outputs a single current pulse only when the liquid contacts the internal electrode during a reciprocating motion in one cycle. The output current of the generator depends on the curved liquid surface of the internal liquid, and the generator needs to move relatively quickly and regularly. In addition, the discharge process of the generator occurs between the liquid and the electrode, so the large current output depends on a high-concentration salt solution, while the high-concentration salt solution is prone to corrode the electrode, and its shielding effect will significantly reduce the transferred charge.

[0004] Therefore, how to design a tubular liquid-solid nanogenerator with a large output current and relatively loose application conditions, that is, the internal electrode does not require an inert metal, the internal liquid does not require a high-concentration salt solution, and the internal liquid does not require a curved liquid surface formed by rapid movement, is an urgent problem to be solved in the field of nanogenerators at present. Summary of the Invention

[0005] The present invention provides a tubular nanogenerator and a manufacturing method thereof to solve the defect that in the prior art, the magnitude of the output current of the tubular nanogenerator depends on the curved liquid surface formed by the rapid movement of the internal liquid, its high-performance output is limited by the regular motion of the generator, and the applicable conditions are strict.

[0006] The present invention provides a tubular nanogenerator, comprising: A power generation plate; An insulating plate; An insulating tube, one end of which is connected to the power generation plate, the other end of which is connected to the insulating plate, and the power generation plate and the insulating plate respectively cover the openings at both ends of the insulating tube to form a closed tubular structure; A back electrode, provided on a side of the power generation plate facing away from the insulating tube; A first conductor, passing through the insulating tube, disposed close to the insulating plate, and being electrically connected to a driving liquid filled in the insulating tube in a first state; A second conductor, passing through the insulating tube, disposed close to the power generation plate, and being electrically connected to the driving liquid filled in the insulating tube in a second state; A conductive block, being electrically connected to the first conductor in the first state and being electrically connected to the second conductor in the second state; A lead structure, connected between the conductive block and the back electrode.

[0007] For the tubular nanogenerator according to the present invention, the lead structure includes: A conductive slide rail, one end of which is connected to one end of the insulating tube, and the other end of which is connected to the other end of the insulating tube. The conductive block is slidably disposed on the conductive slide rail and is limited between the first conductor and the second conductor.

[0008] For the tubular nanogenerator according to the present invention, the lead structure further includes: A wire, one end of which is connected to the conductive slide rail, and the other end of which is connected to the back electrode.

[0009] For the tubular nanogenerator according to the present invention, it further includes: A first slide rail bracket, having a first collar at one end and a first mounting hole at the other end. The first collar is sleeved on one end of the insulating tube, and one end of the conductive slide rail is inserted into the first mounting hole; A second slide rail bracket, having a second collar at one end and a second mounting hole at the other end. The second collar is sleeved on the other end of the insulating tube, and the other end of the conductive slide rail is inserted into the second mounting hole.

[0010] For the tubular nanogenerator according to the present invention, the power generation plate is a fluorinated ethylene propylene copolymer power generation plate or a polytetrafluoroethylene power generation plate.

[0011] For the tubular nanogenerator according to the present invention, the driving liquid includes any one of pure water, ionic liquid, solution, rainwater, seawater, emulsion, suspension, liquid metal, liquid oil, and organic liquid.

[0012] For the tubular nanogenerator according to the present invention, the volume of the driving liquid is 0.1% - 99.9% of the internal volume of the closed tubular structure.

[0013] The present invention further provides a manufacturing method of a tubular nanogenerator according to the present invention, including: Cutting the power generation plate; Clean the power generation panel and perform surface treatment on the power generation panel; Bond the back electrode to one side of the power generation panel facing away from the insulating tube; Bond the insulating tube between the power generation panel and the insulating plate to form a closed tubular structure; Insert the first conductor into the insulating tube and arrange it close to the insulating plate; Insert the second conductor into the insulating tube and arrange it close to the power generation panel; Install the conductive block and make the conductive block conduct with the first conductor in the first state and conduct with the second conductor in the second state; Connect one end of the lead structure to the conductive block and the other end to the back electrode; Fill the driving liquid into the closed tubular structure.

[0014] According to the manufacturing method of the tubular nanogenerator of the present invention, before the step of installing the conductive block, it further includes: Install a first slide rail bracket at one end of the insulating tube and a second slide rail bracket at the other end of the insulating tube; Install the conductive slide rail between the first slide rail bracket and the second slide rail bracket, and slidably install the conductive block on the conductive slide rail and limit it between the first conductor and the second conductor.

[0015] According to the manufacturing method of the tubular nanogenerator of the present invention, the step of cutting the power generation panel specifically includes: Cut the power generation panel made of fluorinated ethylene propylene copolymer; The step of cleaning the power generation panel and performing surface treatment on the power generation panel specifically includes: Perform ultrasonic cleaning on the power generation panel made of fluorinated ethylene propylene copolymer, and perform charging treatment on the power generation panel made of fluorinated ethylene propylene copolymer using an ion gun.

[0016] According to the manufacturing method of the tubular nanogenerator of the present invention, the step of cutting the power generation panel specifically includes: Cut the power generation panel made of polytetrafluoroethylene; The step of cleaning the power generation panel and performing surface treatment on the power generation panel specifically includes: Perform ultrasonic cleaning on the power generation panel made of polytetrafluoroethylene, and perform charging treatment on the power generation panel made of polytetrafluoroethylene using friction charging.

[0017] A tubular nanogenerator provided by the present invention includes: a power generation plate, an insulating plate, an insulating tube, a back electrode, a first conductor, a second conductor, a conductive block, and a lead structure. One end of the insulating tube is connected to the power generation plate, and the other end is connected to the insulating plate. The power generation plate and the insulating plate respectively cover the openings at both ends of the insulating tube to form a closed tubular structure. The back electrode is arranged on the side of the power generation plate facing away from the insulating tube. The first conductor passes through the insulating tube and is close to the insulating plate, and is electrically connected to the driving liquid filled in the insulating tube in a first state. The second conductor passes through the insulating tube and is close to the power generation plate, and is electrically connected to the driving liquid filled in the insulating tube in a second state. The conductive block is electrically connected to the first conductor in the first state and is electrically connected to the second conductor in the second state. The lead structure is connected between the conductive block and the back electrode. In a reciprocating motion process of one cycle of the tubular nanogenerator provided by the present invention, the liquid contacts the internal electrode twice, and the generator outputs two current pulses, which can collect liquid energy, generate a large current, and is beneficial to energy collection. Moreover, the output current of the generator does not depend on the curved liquid surface of the internal liquid, and can output normally under a wider frequency range and a larger rotation angle condition. The more relaxed application conditions have extremely broad application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of the tubular nanogenerator provided in one embodiment of the present invention in the first state.

[0020] Figure 2 It is a schematic structural diagram of the tubular nanogenerator provided in one embodiment of the present invention in the second state.

[0021] Figure 3 It is a schematic structural diagram of the first slide rail bracket provided in one embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the current generated by the tubular nanogenerator provided in one embodiment of the present invention.

[0023] Figure 5 It is a flowchart of the manufacturing method of the tubular nanogenerator provided in one embodiment of the present invention.

[0024] Reference Signs: 1: Power generation panel; 2: Insulating board; 3: Insulating tube; 4: Back electrode; 5: First conductor; 6: Second conductor; 7: Conductive block; 8: Conductive slide rail; 9: Wire; 10: First slide rail bracket; 111: First collar; 112: First mounting hole; 11: Second slide rail bracket; 12: Driving liquid; 13: Ammeter. Detailed implementation manner

[0025] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of this embodiment, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this embodiment.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this embodiment, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0028] In this embodiment, unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0029] In the embodiments of the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0030] The following combines Figures 1-4 to describe a tubular nanogenerator of the present invention. The tubular nanogenerator includes: a power generation plate 1, an insulating plate 2, an insulating tube 3, a back electrode 4, a first conductor 5, a second conductor 6, a conductive block 7, and a lead structure.

[0031] Among them, one end of the insulating tube 3 is connected to the power generation plate 1, and the other end is connected to the insulating plate 2, and the power generation plate 1 and the insulating plate 2 respectively cover the openings at both ends of the insulating tube 3 to form a closed tubular structure; the back electrode 4 is provided on the side of the power generation plate 1 away from the insulating tube 3; the first conductor 5 passes through the insulating tube 3 and is disposed close to the insulating plate 2 and is electrically connected to the driving liquid 12 filled in the insulating tube 3 in a first state; the second conductor 6 passes through the insulating tube 3 and is disposed close to the power generation plate 1 and is electrically connected to the driving liquid 12 filled in the insulating tube 3 in a second state; the conductive block 7 is electrically connected to the first conductor 5 in the first state and is electrically connected to the second conductor 6 in the second state; the lead structure is connected between the conductive block 7 and the back electrode 4.

[0032] Optionally, the first conductor 5 and the second conductor 6 in the present invention may adopt electrodes, that is, the first electrode and the second electrode, and the internal electrode does not require an inert metal.

[0033] Optionally, the power generation plate 1 includes any insulating solid material or a conductive material with an insulating layer coated on the surface, preferably fluorinated ethylene propylene copolymer or polytetrafluoroethylene; when the fluorinated ethylene propylene copolymer is used as the power generation plate 1, its thickness ranges from 0.01 to 10 mm.

[0034] Optionally, the insulating tube 3 includes any insulating solid material or a conductive material with an insulating layer coated on the surface, preferably a quartz tube.

[0035] Optionally, the back electrode 4, the first conductor 5, the second conductor 6, the conductive block 7, the conductive slide rail 8 (in the following embodiments) and the wire 9 include any conductive material, preferably copper.

[0036] Optionally, the driving liquid 12 in the insulating tube 3 includes, but is not limited to, any one of pure water, ionic liquid, solution, rainwater, seawater, emulsion, suspension, liquid metal, liquid oil, and organic liquid.

[0037] Optionally, the volume of the driving liquid 12 in the insulating tube 3 is 0.1% - 99.9% of the internal volume of the insulating tube 3.

[0038] Optionally, the distance between the second conductor 6 and the power generation plate 1, and the details between the first conductor 5 and the insulating plate 2 are designed according to the actual situation.

[0039] Optionally, the depth range of insertion of the first conductor 5 and the second conductor 6 into the insulating tube 3 is from 0 to the inner diameter of the insulating tube 3.

[0040] Optionally, the first conductor 5 and the second conductor 6 can be inserted into the insulating tube 3 in any direction.

[0041] The tubular nanogenerator of the present invention has two working states, namely the first state and the second state, which are specifically as follows: Structurally, the present invention has two internal electrodes (i.e., the first electrode and the second electrode) and a conductive block 7. During a reciprocating motion cycle, the liquid contacts the internal electrodes twice, and the generator outputs two current pulses.

[0042] When the generator rotates counterclockwise from the initial horizontal position (i.e., the structure as shown in Figure 1 ), the tubular nanogenerator is in the first state. The liquid first detaches from the power generation plate 1 and contacts the first conductor 5 on the left side. The conductive block 7 contacts the first conductor 5 on the left side. At this time, the circuit is turned on, generating a current pulse that can be detected by the ammeter 13.

[0043] When the generator rotates clockwise (i.e., the structure as shown in Figure 2 ), the tubular nanogenerator is in the second state. The liquid first covers the power generation plate 1 and contacts the second conductor 6 on the right side. The conductive block 7 contacts the second conductor 6 on the right side. At this time, the circuit is turned on, generating a second current pulse that can be detected by the ammeter 13.

[0044] The current output of the generator does not depend on the curved liquid surface of the internal liquid and can output normally under a wider frequency range and a larger rotation angle condition. In addition, the discharge process of the generator occurs between the conductive block 7 and the two electrodes (i.e., the two conductors). Therefore, only water is required to achieve a large current output, protecting the electrodes while outputting a higher transferred charge.

[0045] A tubular nanogenerator provided by the present invention includes: a power generation plate 1, an insulating plate 2, an insulating tube 3, a back electrode 4, a first conductor 5, a second conductor 6, a conductive block 7, and a lead structure. One end of the insulating tube 3 is connected to the power generation plate 1, and the other end is connected to the insulating plate 2. The power generation plate 1 and the insulating plate 2 respectively cover the openings at both ends of the insulating tube 3 to form a closed tubular structure; the back electrode 4 is arranged on the side of the power generation plate 1 away from the insulating tube 3; the first conductor 5 penetrates through the insulating tube 3 and is arranged close to the insulating plate 2, and is electrically connected to the driving liquid 12 filled in the insulating tube 3 in a first state; the second conductor 6 penetrates through the insulating tube 3 and is arranged close to the power generation plate 1, and is electrically connected to the driving liquid 12 filled in the insulating tube 3 in a second state; the conductive block 7 is electrically connected to the first conductor 5 in the first state and is electrically connected to the second conductor 6 in the second state; the lead structure is connected between the conductive block 7 and the back electrode 4. In a reciprocating motion process of one cycle, the liquid contacts the internal electrode twice, and the generator outputs two current pulses, which can collect liquid energy, generate a large current, and is beneficial to energy collection; moreover, the output current of the generator does not depend on the curved liquid surface of the internal liquid, can output normally under a wider frequency range and a larger rotation angle condition, and has extremely broad application scenarios under more relaxed application conditions.

[0046] In one embodiment of the present invention, the lead structure includes: a conductive slide rail 8, one end of which is connected to one end of the insulating tube 3, and the other end is connected to the other end of the insulating tube 3. The conductive block 7 is slidably arranged on the conductive slide rail 8 and is limited between the first conductor 5 and the second conductor 6. Specifically, the conductive slide rail 8 is connected to both ends of the insulating tube 3. The conductive slide rail 8 is used to define the sliding direction of the conductive block 7, and the conductive block 7 is slidably arranged on the conductive slide rail 8. In the first state, under the action of gravity, the conductive block 7 slides to the first conductor 5 and contacts it; in the second state, under the action of gravity, the conductive block 7 slides to the second conductor 6 and contacts it.

[0047] In one embodiment of the present invention, the lead structure further includes: a wire 9, one end of which is connected to the conductive slide rail 8, and the other end is connected to the back electrode 4 to achieve electrical connection, and an ammeter 13 is installed at the wire 9.

[0048] In one embodiment of the present invention, the tubular nanogenerator further includes: a first slide rail bracket 10 and a second slide rail bracket 11. Among them, one end of the first slide rail bracket 10 has a first collar 111, and the other end has a first mounting hole 112. The first collar 111 is sleeved on one end of the insulating tube 3, and one end of the conductive slide rail 8 is inserted into the first mounting hole 112; one end of the second slide rail bracket 11 has a second collar, and the other end has a second mounting hole. The second collar is sleeved on the other end of the insulating tube 3, and the other end of the conductive slide rail 8 is inserted into the second mounting hole. AsFigure 3 As shown, taking the first slide rail bracket 10 as an example, the first slide rail bracket 10 and the second slide rail bracket 11 in this embodiment have the same structure. The collar is sleeved on the end of the insulating tube 3 and fixed, and the conductive slide rail 8 is installed through the mounting holes thereon.

[0049] In one embodiment of the present invention, the power generation plate 1 is a fluorinated ethylene propylene copolymer power generation plate or a polytetrafluoroethylene power generation plate. According to the actual situation, it can also be made of other materials, such as: any insulating solid material or a conductive material with an insulating layer coated on its surface.

[0050] In one embodiment of the present invention, the driving liquid 12 includes any one of pure water, ionic liquid, solution, rainwater, seawater, emulsion, suspension, liquid metal, liquid oil and organic liquid.

[0051] In one embodiment of the present invention, the volume of the driving liquid 12 is 0.1% - 99.9% of the internal volume of the closed tubular structure.

[0052] The present invention also provides a manufacturing method of a tubular nanogenerator according to the embodiment of the present invention. The manufacturing method includes the following steps: S1. Cut the power generation plate 1; S2. Clean the power generation plate 1 and perform surface treatment on the power generation plate 1; S3. Bond the back electrode 4 to the side of the power generation plate 1 facing away from the insulating tube 3; S4. Bond the insulating tube 3 between the power generation plate 1 and the insulating plate 2 to form a closed tubular structure; S5. Insert the first conductor 5 into the insulating tube 3 and arrange it close to the insulating plate 2; S6. Insert the second conductor 6 into the insulating tube 3 and arrange it close to the power generation plate 1; S7. Install the conductive block 7 and make the conductive block 7 conduct electricity with the first conductor 5 in the first state and conduct electricity with the second conductor 6 in the second state; S8. Connect one end of the lead structure to the conductive block 7 and the other end to the back electrode 4; S9. Fill the driving liquid 12 into the closed tubular structure.

[0053] The manufacturing method of a tubular nanogenerator provided by the present invention makes the manufactured tubular nanogenerator have the same beneficial effects as those in the above embodiments of the present invention.

[0054] In one embodiment of the present invention, before the step of installing the conductive block 7, that is, before step S7, the following steps are further included: S71. Install the first slide rail bracket 10 at one end of the insulating tube 3, and install the second slide rail bracket 11 at the other end of the insulating tube 3. S72. Install the conductive slide rail 8 between the first slide rail bracket 10 and the second slide rail bracket 11, and slidably install the conductive block 7 on the conductive slide rail 8 and limit it between the first conductor 5 and the second conductor 6.

[0055] Through the first slide rail bracket 10 and the second slide rail bracket 11, the conductive slide rail 8 is installed well, and the conductive block 7 is enabled to slide on it by using the conductive slide rail 8. In the first state, the conductive block 7 is in contact with the first conductor 5 to achieve conduction; in the second state, the conductive block 7 is in contact with the second conductor 6 to achieve conduction.

[0056] In one embodiment of the present invention, the step of cutting the power generation plate 1, that is, step S1 specifically includes: S11. Cut the power generation plate 1 made of ethylene tetrafluoride propylene copolymer. The steps of cleaning the power generation plate 1 and performing surface treatment on the power generation plate 1, that is, step S2 specifically includes: S21. Ultrasonically clean the power generation plate 1 made of ethylene tetrafluoride propylene copolymer, and use an ion gun to charge the power generation plate 1 made of ethylene tetrafluoride propylene copolymer. In this embodiment, the conductive plate is made of ethylene tetrafluoride propylene copolymer material.

[0057] In one embodiment of the present invention, the step of cutting the power generation plate 1, that is, step S1 specifically includes: S12. Cut the power generation plate 1 made of polytetrafluoroethylene. The steps of cleaning the power generation plate 1 and performing surface treatment on the power generation plate 1, that is, step S2 specifically includes: S22. Ultrasonically clean the power generation plate 1 made of polytetrafluoroethylene, and use triboelectric charging to charge the power generation plate 1 made of polytetrafluoroethylene. In this embodiment, the conductive plate is made of polytetrafluoroethylene material.

[0058] The surface treatment methods in the above embodiments include, but are not limited to, no treatment, triboelectric charging, ion gun charging, electrostatic electret, surface etching of micro-nano structures, surface chemical modification, etc.

[0059] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative labor.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. 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 they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. 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.

Claims

1. A tubular nanogenerator, characterized in that, Comprising: Power generation panel (1); Insulating panel (2); Insulating tube (3), one end connected to the power generation panel (1), the other end connected to the insulating panel (2), and the power generation panel (1) and the insulating panel (2) respectively cover the openings at both ends of the insulating tube (3) to form a closed tubular structure; Back electrode (4), provided on the side of the power generation panel (1) facing away from the insulating tube (3); First conductor (5), passing through the insulating tube (3), and disposed close to the insulating panel (2), and conducting with the driving liquid (12) filled in the insulating tube (3) in the first state; Second conductor (6), passing through the insulating tube (3), and disposed close to the power generation panel (1), and conducting with the driving liquid (12) filled in the insulating tube (3) in the second state; Conductive block (7), conducting with the first conductor (5) in the first state and conducting with the second conductor (6) in the second state; Lead structure, connected between the conductive block (7) and the back electrode (4).

2. The tubular nanogenerator according to claim 1, wherein The lead structure includes: Conductive slide rail (8), one end connected to one end of the insulating tube (3), the other end connected to the other end of the insulating tube (3), and the conductive block (7) is slidably disposed on the conductive slide rail (8) and limited between the first conductor (5) and the second conductor (6).

3. The tubular nanogenerator according to claim 2, wherein, The lead structure further includes: Wire (9), one end connected to the conductive slide rail (8), the other end connected to the back electrode (4).

4. The tubular nanogenerator according to claim 2, wherein Also including: First slide rail bracket (10), one end having a first collar (111), the other end having a first mounting hole (112), the first collar (111) sleeved on one end of the insulating tube (3), and one end of the conductive slide rail (8) inserted into the first mounting hole (112); Second slide rail bracket (11), one end having a second collar, the other end having a second mounting hole, the second collar sleeved on the other end of the insulating tube (3), and the other end of the conductive slide rail (8) inserted into the second mounting hole.

5. The tubular nanogenerator according to any one of claims 1 to 4, characterized in that, The power generation panel (1) is a fluorinated ethylene propylene copolymer power generation panel or a polytetrafluoroethylene power generation panel.

6. The tubular nanogenerator according to any one of claims 1 to 4, characterized in that The driving liquid (12) includes any one of pure water, ionic liquid, solution, rainwater, seawater, emulsion, suspension, liquid metal, liquid oil and organic liquid.

7. The tubular nanogenerator according to any one of claims 1 to 4, characterized in that, The volume of the driving liquid (12) is 0.1% - 99.9% of the internal volume of the closed tubular structure.

8. A method for manufacturing a tubular nanogenerator according to any one of claims 1 to 7, characterized in that, Including: Cut the power generation panel (1); Clean the power generation panel (1) and perform surface treatment on the power generation panel (1); Bond the back electrode (4) to the side surface of the power generation panel (1) facing away from the insulating tube (3); Bond the insulating tube (3) between the power generation panel (1) and the insulating panel (2) to form a closed tubular structure; Insert the first conductor (5) into the insulating tube (3) and dispose it close to the insulating panel (2); Insert the second conductor (6) into the insulating tube (3) and dispose it close to the power generation panel (1); Install the conductive block (7) such that the conductive block (7) is electrically connected to the first conductor (5) in the first state and to the second conductor (6) in the second state; Connect one end of the lead structure to the conductive block (7) and the other end to the back electrode (4); Fill the enclosed tubular structure with the driving liquid (12).

9. The manufacturing method of the tubular nanogenerator according to claim 8, wherein, Before the step of installing the conductive block (7), it further includes: Install a first slide rail bracket (10) at one end of the insulating tube (3) and a second slide rail bracket (11) at the other end of the insulating tube (3); Install the conductive slide rail (8) between the first slide rail bracket (10) and the second slide rail bracket (11), and slidably install the conductive block (7) on the conductive slide rail (8) and position it between the first conductor (5) and the second conductor (6).

10. The manufacturing method of the tubular nanogenerator according to claim 8, wherein The step of cutting the power generation plate (1) specifically includes: Cut the power generation plate (1) made of fluorinated ethylene propylene copolymer; The step of cleaning the power generation plate (1) and performing surface treatment on the power generation plate (1) specifically includes: Ultrasonically clean the power generation plate (1) made of fluorinated ethylene propylene copolymer, and perform charging treatment on the power generation plate (1) made of fluorinated ethylene propylene copolymer using an ion gun.

11. The manufacturing method of the tubular nanogenerator according to claim 8, characterized in that, The step of cutting the power generation plate (1) specifically includes: Cut the power generation plate (1) made of polytetrafluoroethylene; The step of cleaning the power generation plate (1) and performing surface treatment on the power generation plate (1) specifically includes: Ultrasonically clean the power generation plate (1) made of polytetrafluoroethylene, and perform charging treatment on the power generation plate (1) made of polytetrafluoroethylene using friction charging.

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