A lever-type piezoelectric power generation component

Abstract

The present invention discloses a lever-type piezoelectric power generation assembly, which includes two horizontally opposed laborious lever substrates. A hinge point is provided at the bottom of the laborious lever substrate, and its power arm is shorter than the resistance arm. A metal substrate and an arc-shaped substrate are provided above the laborious lever substrate, and piezoelectric ceramic sheets are provided on the metal substrate. Elastic levers are fixed at the opposite ends of the two arc-shaped substrates. First pressing blocks are fixed on both the upper and lower sides of the elastic levers, and an elastic trigger plate is fixed on the tops of the two upper first pressing blocks. When a pedestrian steps on the elastic trigger plate, the first pressing block below the elastic lever causes the laborious lever substrate to rotate around its hinge point, and the second pressing block at the end of the resistance arm of the laborious lever substrate presses the metal substrate upwards, causing it to gradually fit onto the arc surface of the arc-shaped substrate. A buffer mechanism is provided below the power arm of the laborious lever substrate for absorbing impact loads. The present invention has high stability and high piezoelectric energy conversion efficiency, and pedestrians do not have uncomfortable feelings such as stepping into the void, and can achieve continuous and efficient collection of human kinetic energy.

Description

Technical Field

[0001] The present invention relates to a device for energy harvesting by utilizing the piezoelectric effect of piezoelectric ceramic sheets, and particularly to a lever-type piezoelectric power generation assembly. Background Art

[0002] Utilizing piezoelectric power generation devices to harvest human kinetic energy in crowded places has broad application prospects. Existing piezoelectric power generation devices mostly directly step on piezoelectric elements to deform them for power generation, which has many drawbacks. On the one hand, the power generation amount of the piezoelectric power generation device is related to the deformation size of the piezoelectric ceramic element. When the piezoelectric ceramic element deforms greatly, pedestrians will have a sense of stepping into the air or other discomfort. On the other hand, the piezoelectric ceramic element is a brittle element and is easily broken by external impacts.

[0003] In view of this, how to ensure a large deformation amount of the piezoelectric ceramic element, avoid discomfort such as stepping into the air, and prevent the piezoelectric ceramic element from being broken by impacts to achieve continuous and efficient power generation is an urgent problem to be solved. Summary of the Invention

[0004] Object of the Invention: The object of the present invention is to provide a lever-type piezoelectric power generation assembly, which can bring a large deformation amount of the piezoelectric ceramic element with a small trigger amount, avoid discomfort such as stepping into the air, and prevent the piezoelectric ceramic element from being broken by external impacts.

[0005] Technical Solution: The present invention provides a lever-type piezoelectric power generation assembly, which is of a symmetrical structure as a whole and includes a trigger mechanism, a buffer mechanism, and two horizontally opposed effort-lever substrates; a hinge point is provided at the bottom of the effort-lever substrate, the length of its power arm is shorter than that of the resistance arm, and a second pressing block is fixed at the end of the upper surface of the resistance arm of the effort-lever substrate; a metal substrate and an arc-shaped substrate made of non-conductive material are sequentially fixed above the effort-lever substrate from bottom to top. Piezoelectric ceramic sheets are provided on both the upper and lower surfaces of the metal substrate, and the piezoelectric ceramic sheets are connected to an external energy conversion circuit. The lower end surface of the arc-shaped substrate is an arc surface;

[0006] The trigger mechanism is provided to include an elastic trigger plate and two elastic levers. The two elastic levers are respectively fixed at the opposite ends of the two arc-shaped substrates; a first pressing block is fixed on both the upper surface near the fixed end and the lower surface of the free end of the elastic lever; the elastic trigger plate is fixed on the tops of the two first pressing blocks located above; when a pedestrian steps on the elastic trigger plate, the first pressing block below the elastic lever presses down the power arm of the corresponding effort-lever substrate, and the two effort-lever substrates rotate around the corresponding hinge points, and the second pressing block presses up the corresponding metal substrate to gradually fit it on the arc surface of the arc-shaped substrate;

[0007] The buffer mechanism is arranged below the power arm of the effort-lever substrate and is used for absorbing impact loads.

[0008] In the present invention, the elastic lever is a cantilever beam lever structure. The fixed point between the elastic lever and the arc-shaped substrate is the fulcrum. The section from the first pressing block on the upper surface to the fulcrum is the power arm, and the section from the first pressing block on the lower surface to the fulcrum is the resistance arm. When a pedestrian steps on the elastic trigger plate, according to the lever principle, the displacement of the first pressing block on the lower side of the elastic lever is greater than that of the first pressing block on the upper side. Therefore, as long as the elastic trigger plate generates a small downward displacement, it can cause a large downward displacement at the free end of the elastic lever, avoiding the discomfort of stepping into thin air.

[0009] As the first pressing block on the lower surface of the elastic lever moves downward, it gradually contacts the substrate of the force-consuming lever and drives the power arm of the substrate of the force-consuming lever to move downward. The substrate of the force-consuming lever rotates around its hinge fulcrum, and the other end (i.e., the end of the resistance arm) tilts upward. The section from the second pressing block on the upper surface of the substrate of the force-consuming lever to the hinge fulcrum is the resistance arm, and the rest is the power arm. Similarly, according to the lever principle, the first pressing block on the lower side of the elastic lever only needs to move downward a small distance to drive a large displacement at the other end of the substrate of the force-consuming lever. The second pressing block at the free end of the substrate of the force-consuming lever moves upward with it, pressing the free end of the upper pressing metal substrate, driving the metal substrate and the piezoelectric ceramic sheet on it to bend and deform. The metal substrate gradually fits with the arc surface of the arc-shaped substrate, which can ensure that each piezoelectric ceramic sheet composed of the metal substrate and the piezoelectric ceramic sheet deforms from the fixed end to the free end and ensures the continuity and uniformity of the deformation, avoiding the problem that the power generation at the fixed end is large and the power generation at the free end is small, and improving the energy conversion efficiency.

[0010] The buffer mechanism can absorb a large impact load, avoid the damage of the piezoelectric ceramic sheet due to external impact, improve the reliability of the piezoelectric power generation component, and enable it to be continuously used for a long time.

[0011] After the stepping is over, the elastic lever, the metal substrate, the substrate of the force-consuming lever, and the buffer mechanism can all return to their initial states. Therefore, when a pedestrian steps continuously, the piezoelectric power generation component can realize a continuous piezoelectric power generation process.

[0012] Further, the buffer mechanism includes a buffer outer frame, a buffer spring, and an I-shaped buffer member. The two ends of the I-shaped buffer member are respectively located inside and outside the buffer outer frame. The buffer spring is installed on the middle cylinder of the I-shaped buffer member, and the buffer spring is located outside the buffer outer frame.

[0013] Further, the length of the power arm of the substrate of the force-consuming lever is half of the length of the resistance arm; the length of the power arm of the elastic lever is 1 / 3 of the length of the resistance arm.

[0014] Further, the radius of the arc surface of the arc-shaped substrate is 1750 - 1900 mm.

[0015] The deformation of each piezoelectric ceramic sheet is a constant value, which is related to the radius of the arc surface of the arc-shaped substrate. In this technical solution, by setting the radius of the arc surface of the arc-shaped substrate within a reasonable range, it is ensured that the piezoelectric ceramic sheet is within its brittle failure deformation range.

[0016] Further, the hinge point is formed by hinging a triangular lever bracket at the bottom of the effort lever substrate.

[0017] Further, the above lever-type piezoelectric power generation assembly further includes a U-shaped support frame, the support frame straddles the triangular lever bracket and the effort lever substrate, and the metal substrate and the arc-shaped substrate are fixed on the support frame; the triangular lever bracket and the support frame are fixed by a lever base connecting piece and a nut.

[0018] Further, the above lever-type piezoelectric power generation assembly further includes two L-shaped fixed bases, and the outer ends of the two arc-shaped substrates are respectively fixed to the inner sides of the short sections of the corresponding fixed bases; the long sections of the fixed bases are connected to the corresponding support frames through second connecting plates.

[0019] Further, the two arc-shaped substrates are connected by a first connecting plate.

[0020] In the above technical solution, components such as the fixed base, the support frame, the effort lever substrate, and the arc-shaped substrate enclose a space for the safe and stable operation of the piezoelectric ceramic sheet.

[0021] Further, the material of the arc-shaped substrate is plastic, wood, ceramic or glass.

[0022] Further, the energy conversion circuit includes a rectifying circuit, a filter capacitor, a super capacitor, a voltage stabilizing diode and a load connected in parallel, and the piezoelectric ceramic sheet is connected to the input end of the rectifying circuit.

[0023] Beneficial effects: Compared with the prior art, the present invention has the following remarkable advantages:

[0024] A relatively small displacement of the triggering mechanism can cause a large deformation of the metal substrate and the piezoelectric ceramic sheet thereon, avoiding discomfort such as stepping on air; the metal substrate can be attached to the arc surface of the arc-shaped substrate, and the continuity and uniformity of the deformation of the piezoelectric ceramic sheet are good; the buffer mechanism can absorb impact loads and prevent the piezoelectric ceramic sheet from being damaged by external impacts.

[0025] The piezoelectric energy conversion efficiency of the present invention is high, pedestrians have no discomfort such as stepping on air and have the willingness to step on, and continuous and efficient collection of human kinetic energy can be achieved. Description of the Drawings

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required to be used in the embodiments of the present invention. Obviously, the following described drawings are only the 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.

[0027] Figure 1 It is a schematic structural diagram of a lever-type piezoelectric power generation component provided by an embodiment of the present application;

[0028] Figure 2 is Figure 1 front view of;

[0029] Figure 3 It is a schematic structural diagram of a force-consuming lever substrate in an embodiment of the present application;

[0030] Figure 4 It is a schematic structural diagram of a triangular lever bracket in an embodiment of the present application;

[0031] Figure 5 It is a schematic structural diagram of a force-consuming lever in an embodiment of the present application;

[0032] Figure 6 It is a schematic structural diagram of a fixed base in an embodiment of the present application;

[0033] Figure 7 It is a schematic structural diagram of a support frame in an embodiment of the present application;

[0034] Figure 8 It is a schematic structural diagram of an arc-shaped substrate in an embodiment of the present application;

[0035] Figure 9 It is a schematic structural diagram of a piezoelectric power generation plate in an embodiment of the present application;

[0036] Figure 10 It is a schematic structural diagram of an elastic lever in an embodiment of the present application;

[0037] Figure 11 It is a schematic structural diagram of a buffer mechanism in an embodiment of the present application;

[0038] Figure 12 It is a schematic circuit diagram of energy conversion in an embodiment of the present application;

[0039] Reference numerals: 1, fixed base; 2, arc-shaped substrate; 3, long bolt; 4, elastic trigger plate; 5, first pressing block; 6, elastic lever; 7, first connecting plate; 8, short bolt; 9, metal substrate; 10, piezoelectric ceramic sheet; 11, second pressing block; 12, second connecting plate; 13, effort lever substrate; 14, triangular lever bracket; 15, double-headed screw; 16, buffer outer frame; 17, buffer spring; 18, I-shaped buffer; 19, support frame; 20, lever base connecting piece; 21, nut; 22, energy conversion circuit; 2201, rectifying circuit; 2202, filter capacitor; 2203, super capacitor; 2204, voltage stabilizing diode; 2205, load. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

[0041] Figure 1 and Figure 2 The following shows a structural schematic diagram of a lever-type piezoelectric power generation component provided by an embodiment of the present application. The lever-type piezoelectric power generation component is a left-right symmetric structure as a whole, and includes a piezoelectric power generation plate, an effort lever, a support assembly, a trigger mechanism, and a buffer mechanism.

[0042] Combined with Figures 3 to 5 , the effort lever includes an effort lever substrate 13 and a triangular lever bracket 14. The triangular lever bracket 14 is hinged to the bottom trisection point of the effort lever substrate 13 through a double-headed screw 15, and both ends of the double-headed screw 15 are fixed by nuts 21. The effort lever substrate 13 can rotate around the hinge point within a certain range, and the length of its power arm is half of the length of the resistance arm. The end of the upper surface of the resistance arm of the effort lever substrate 13 is bonded with a second pressing block 11. As Figure 1 and Figure 2 shown, the number of effort levers is two, and the two effort lever substrates 13 are horizontally opposed, with the power arms facing each other.

[0043] In this embodiment, the length of the effort lever substrate 13 is 360 mm, the width is 40 mm, and the thickness is 1 mm. A connection hole is provided at the protrusion of the trisection point of the effort lever substrate 13, the hole diameter is 2 mm, the thickness of the protrusion is 6 mm, and the length is 12 mm. The height of the triangular lever bracket 14 is 42 mm, and the bottom width is 46 mm. Connection holes are provided at the three vertices of the triangular lever bracket 14, and the hole diameter is 2 mm. The length of the second pressing block 11 is 20 mm, the thickness is 40 mm, and the height is 10 mm. The length of the double-headed screw 15 is 54 mm, and the diameter is 1.9 mm.

[0044] Combined with Figure 9 , the piezoelectric power generation plate includes a metal substrate 9 and rectangular piezoelectric ceramic sheets 10 bonded to the upper and lower surfaces of the metal substrate 9. Both of the two piezoelectric ceramic sheets 10 are polarized in the thickness direction and the polarization directions are opposite. Electrodes are attached to the two piezoelectric ceramic sheets 10 and after electrical series or parallel connection, they are connected to an external energy conversion circuit 22. Three round holes are arranged side by side at one end of the metal substrate 9 for fixing the metal substrate 9.

[0045] In this embodiment, the material of the metal substrate 9 is beryllium bronze, with a length of 250 mm, a width of 70 mm, and a thickness of 1 mm. The material of the piezoelectric ceramic sheet 10 is PZT-5H, with a length of 190 mm, a width of 70 mm, and a thickness of 1 mm.

[0046] As Figures 6 to 8 shown, the support assembly includes a fixed base 1, an arc-shaped substrate 2, and a support frame 19. Among them, the fixed base 1 is L-shaped and the support frame 19 is U-shaped. Combined with Figure 1 and Figure 2 , the two support frames 19 are respectively straddled on the corresponding side triangular lever brackets 14 and the laborious lever substrates 13. The two fixed bases 1 are respectively arranged below the two laborious lever substrates 13. Connecting holes with a diameter of 5 mm are provided at the top of the arc-shaped substrate 2 and the support frame 19. The arc-shaped substrate 2 and the piezoelectric power generation plate are fixed to the top of the support frame 19 by long bolts 3, and the arc-shaped substrate 2 is located above the piezoelectric power generation plate. The other end of the arc-shaped substrate 2 is welded and connected to the inner side of the short section of the fixed base 1. The fixed base 1 and the corresponding support frame 19 are connected into one body by short bolts 8 and a second connecting plate 12. The triangular lever bracket 14 and the corresponding support frame 19 are connected into one body by a lever base connecting piece 20, and the end of the lever base connecting piece 20 is fixed by a nut 21. The two arc-shaped substrates 2 are connected into one body by a first connecting plate 7 and short bolts 8.

[0047] The lower end surface of the arc-shaped substrate 2 is an arc surface. The lowermost end of the arc surface is the tangent point of the lower end surface. The center of the arc surface is directly above the tangent point. The lowermost end of the arc surface is 2 mm higher than the upper piezoelectric ceramic sheet of the piezoelectric power generation plate. The width of the arc-shaped substrate 2 ≥ the width of the piezoelectric ceramic sheet 10, and the projected length of the arc surface of the arc-shaped substrate 2 on the metal substrate 9 ≥ the length of the piezoelectric ceramic sheet 10.

[0048] In this embodiment, the width of the arc-shaped substrate 2 is 70 mm, the projection length of the arc surface of the arc-shaped substrate 2 on the metal substrate 9 is 225 mm, and the radius of the arc surface is 1825 mm. Screw holes for connection are provided on the front and rear sides of the arc-shaped substrate 2, and the hole diameter is 3 mm. The length of the fixed base 1 is 160 mm, the width is 70 mm, the height is 97 mm, and the bottom thickness is 30 mm. Screw holes for connection are provided on the front and rear sides of the fixed base 1, and the hole diameter is 3 mm. The height of the support frame 19 is 56 mm, the width is 70 mm, the bottom length is 46 mm, the length of other parts is 20 mm, three connection holes are provided at the top, the hole diameter is 5 mm, and a connection hole for connecting the triangular lever bracket 14 is provided at the bottom, and the hole diameter is 2 mm; screw holes for connection are provided on the front and rear sides of the bottom of the support frame 19, and the hole diameter is 3 mm. The length of the lever base connecting piece 20 is 72 mm, and the diameter is 1.9 mm.

[0049] Combined with Figure 10 , the triggering mechanism includes an elastic lever 6, a first pressing block 5 and an elastic trigger plate 4. Combined with Figure 1 and Figure 2 , an elastic lever 6 is welded to each of the opposite ends of the two arc-shaped substrates 2, and the two elastic levers 6 are at the same height. The distance between the free ends of the two elastic levers 6 does not exceed 3 mm, and the distance between the lower surface of the elastic lever 6 and the upper surface of the lower force lever substrate 13 is 28 mm. First pressing blocks 5 are provided on both the upper surface near the fixed end and the lower surface of the free end of the elastic lever 6, and the fixing method is welding or pasting. Among them, the distance between the upper first pressing block 5 and the fixed end of the elastic lever 6 is 1 / 3 of the length of the elastic lever 6. The lower first pressing block 5 is located at the end of the free end of the elastic lever 6 and corresponds to the end of the power arm of the force lever substrate 13 up and down. The elastic trigger plate 4 is welded and fixed to the top of the two upper first pressing blocks 5, combining the two elastic levers 6 together to form the triggering mechanism.

[0050] Combined with Figure 11 , the buffer mechanism includes a buffer outer frame 16, a buffer spring 17 and an I-shaped buffer member 18. The inside of the buffer outer frame 16 is a hollow structure. The two ends of the I-shaped buffer member 18 are respectively located on the inner and outer sides of the buffer outer frame 16. The buffer spring 17 is installed on the middle cylinder of the I-shaped buffer member 18, and the buffer spring 17 is located outside the buffer outer frame 16. The I-shaped buffer member 18 can move downward by at most 6 mm until it touches the bottom of the buffer outer frame 16. Combined with Figure 1 and Figure 2 , the number of buffer mechanisms is two, which are respectively arranged below the ends of the power arms of the two force lever substrates 13.

[0051] Combined with Figure 12, the piezoelectric ceramic sheet 10 is connected to the energy conversion circuit 22 as an input end. Specifically, the output end is first connected to the input end of the rectification circuit 2201, and the output end of the rectification circuit 2201 is connected to the filter capacitor 2202 and then connected to the positive and negative electrodes of the super capacitor 2203. The super capacitor 2203 is connected to the load 2205. At the same time, the voltage stabilizing diode 2204 is connected to the positive and negative electrodes of the super capacitor 2203 to protect the super capacitor 2203. After the electric energy generated by each excitation passes through the rectification circuit 2201 and the filter capacitor 2202, the electric energy is transmitted to the super capacitor 2203, and then the super capacitor 2203 supplies power to the load 2205.

[0052] The working principle of the lever-type piezoelectric power generation component provided by the embodiment of the present application is as follows:

[0053] When a pedestrian steps on the elastic trigger plate 4, the elastic lever 6 bends. Due to the limiting effect of the support assembly, the elastic trigger plate 4 moves downward by a distance of, for example, 4 mm, that is, the first pressing block 5 on the upper surface of the elastic lever 6 can move downward by a distance of 4 mm. Since the distance from the first pressing block 5 on the upper surface of the elastic lever 6 to the fixed end of the elastic lever 6 is 1 / 3 of the length of the elastic lever 6, the first pressing block 5 on the lower surface of the elastic lever 6 can move downward by 12 mm, that is, the trigger mechanism can drive one end of the power arm of the laborious lever substrate 13 to move downward by a distance of 12 mm. The first pressing block 5 on the lower surface of the elastic lever 6 drives one end of the power arm of the laborious lever substrate 13 to move downward, and the second pressing block 11 at the other end (i.e., the resistance arm end) of the laborious lever substrate 13 moves upward, driving the piezoelectric power generation plate to bend and deform. As the piezoelectric power generation plate gradually fits the arc surface of the arc-shaped substrate 2 from the fixed end to the free end, it is ensured that the piezoelectric ceramic sheets 10 on the piezoelectric power generation plate all undergo uniform deformation from the fixed end to the free end, improving the power generation efficiency of the piezoelectric ceramic sheets 10.

[0054] When the pedestrian finishes stepping on, the elastic lever 6 and the elastic trigger plate 4 return to their original states, and the laborious lever substrate 13 and the piezoelectric power generation plate also return to their original positions. Thus, when the pedestrian continuously steps on the elastic trigger plate 4, continuous power generation can be achieved.

[0055] When subjected to a large impact or pressure, the displacement of one end of the power arm of the laborious lever substrate 13 increases, and it will touch the buffer mechanism, driving the I-shaped buffer member 18 to move downward, compressing the buffer spring 17, and converting the kinetic energy into the elastic potential energy of the buffer spring 17, thereby realizing the functions of buffering and protection.

[0056] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or replacement schemes that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A lever-type piezoelectric power generation component, characterized in that It is a symmetric structure as a whole, including a triggering mechanism, a buffering mechanism and two horizontally opposed laborious lever substrates (13); a hinge point is provided at the bottom of the laborious lever substrate (13), the length of its power arm is shorter than that of the resistance arm, and a second pressing block (11) is fixed at the end of the upper surface of the resistance arm of the laborious lever substrate (13); above the laborious lever substrate (13), a metal substrate (9) and an arc-shaped substrate (2) made of non-conductive material are fixedly arranged from bottom to top in sequence. Piezoelectric ceramic sheets (10) are provided on both the upper and lower surfaces of the metal substrate (9), the piezoelectric ceramic sheets (10) are connected to an external energy conversion circuit (22), and the lower end surface of the arc-shaped substrate (2) is an arc surface. The triggering mechanism includes an elastic trigger plate (4) and two elastic levers (6), and the two elastic levers (6) are respectively fixed at the opposite ends of the two arc-shaped substrates (2); first pressing blocks (5) are fixed on both the upper surface near the fixed end and the lower surface of the free end of the elastic lever (6); the elastic trigger plate (4) is fixed on the tops of the two first pressing blocks (5) located above; when a pedestrian steps on the elastic trigger plate (4), the first pressing block (5) below the elastic lever (6) presses down the power arm of the corresponding laborious lever substrate (13), and the two laborious lever substrates (13) rotate around the corresponding hinge points, and the second pressing block (11) presses up the corresponding metal substrate (9) to gradually fit it on the arc surface of the arc-shaped substrate (2). The buffering mechanism is arranged below the power arm of the laborious lever substrate (13) and is used for absorbing impact loads.

2. The lever-type piezoelectric power generation component according to claim 1, wherein The buffering mechanism includes a buffering outer frame (16), a buffering spring (17) and an I-shaped buffering member (18). The two ends of the I-shaped buffering member (18) are respectively located inside and outside the buffering outer frame (16), the buffering spring (17) is installed on the middle column of the I-shaped buffering member (18), and the buffering spring (17) is located outside the buffering outer frame (16).

3. The lever-type piezoelectric power generation component according to claim 1, wherein, The length of the power arm of the laborious lever substrate (13) is half of the length of the resistance arm; the length of the power arm of the elastic lever (6) is 1 / 3 of the length of the resistance arm.

4. The lever-type piezoelectric power generation assembly according to claim 1, wherein The radius of the arc surface of the arc-shaped substrate (2) is 1750 - 1900 mm.

5. The lever-type piezoelectric power generation component according to claim 1, wherein The hinge point is formed by hinging a triangular lever bracket (14) at the bottom of the laborious lever substrate (13).

6. The lever-type piezoelectric power generation component according to claim 5, wherein, It further includes a U-shaped support frame (19), the support frame (19) straddles the triangular lever bracket (14) and the laborious lever substrate (13), and the metal substrate (9) and the arc-shaped substrate (2) are fixed on the support frame (19); the triangular lever bracket (14) and the support frame (19) are fixed through a lever base connecting member (20) and a nut (21).

7. The lever-type piezoelectric power generation component according to claim 6, wherein It further includes two L-shaped fixed bases (1), and the outer ends of the two arc-shaped substrates (2) are respectively fixed to the inner sides of the short sections of the corresponding fixed bases (1); the long sections of the fixed bases (1) are connected to the corresponding support frames (19) through a second connecting plate (12).

8. The lever-type piezoelectric power generation component according to claim 1, wherein The two arc-shaped substrates (2) are connected through a first connecting plate (7).

9. The lever-type piezoelectric power generation assembly according to claim 1, characterized in that, The material of the arc-shaped substrate (2) is plastic, wood, ceramic or glass.

10. The lever-type piezoelectric power generation component according to claim 1, characterized in that, The energy conversion circuit (22) includes a rectifier circuit (2201), a filter capacitor (2202), a super capacitor (2203), a zener diode (2204), and a load (2205) that are connected in parallel with each other. The piezoelectric ceramic sheet (10) is connected to the input end of the rectifier circuit (2201).

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