Piezoelectric effect power generation device

Abstract

The invention discloses a piezoelectric effect power generation device. The piezoelectric effect is a direct piezoelectric effect. The device comprises a box body, a piezoelectric material and a side plate, the side plate and the box body are arranged in a sealing fit mode, the piezoelectric material is fixedly arranged on the side face, facing the interior of the box body, of the side plate, a wire through hole used for installing a wire connected with the piezoelectric material is formed in the side plate, and a hole sealing piece is arranged at the wire through hole. The box body is provided with a liquid through hole for introducing pressure liquid into the box body, and the electromagnetic valve is used for controlling the pressure liquid. The pressure conduction frequency of the pressure liquid is controlled by an electromagnetic valve; the pressure liquid is applied to the piezoelectric material in the box body through pressure intensity with frequency, so that the piezoelectric material generates charges, mechanical energy is converted into electric energy, and the piezoelectric material outputs periodic electric energy according to liquid pressure change to achieve the purpose of power generation.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy development based on piezoelectric effect, and in particular to a piezoelectric effect power generation device. Background Art

[0002] Energy is an important material basis for human survival and development, and low-carbon energy development is related to the future of mankind. Since the Industrial Revolution, the large-scale development and utilization of fossil energy has strongly promoted the progress of human civilization, but it has also caused problems such as resource depletion and climate change. It has become a consensus among countries to accelerate the transformation and development of energy, achieve sustainable energy utilization, continuously improve people's livelihood and provide inexhaustible power for the world economy.

[0003] In recent years, the global demand for electricity has increased, but the power generation from fossil fuels has declined. The growth of power generation from fossil energy has been slow in recent years, and it is expected that the decline will increase in the next few years. Among them, the power generation from oil will drop sharply, and although the power generation from coal has increased, it is expected to show a downward trend in the next two years. As the power generation from fossil fuels enters a structural decline, new clean energy development technologies are needed for the comprehensive development of the world.

[0004] In summary, the development technology of new energy is urgently needed worldwide to solve the current problems such as the depletion of traditional energy resources and comprehensive development.

[0005] The piezoelectric effect is that when some dielectrics are deformed by external forces in a certain direction, polarization will occur inside them, and opposite positive and negative charges will appear on their two opposite surfaces. When the external force is removed, it will return to a neutral state. This phenomenon is called the positive piezoelectric effect.

[0006] Currently, the technologies that can convert liquid pressure energy into electrical energy generally have problems such as complex structure, difficult production and manufacturing, high production cost, low energy conversion efficiency, and difficulty in electrical energy control and application. Summary of the invention

[0007] In order to solve the problems of the prior art in converting liquid pressure energy into electrical energy, such as complex structure, low energy conversion efficiency, and difficulty in electrical energy control and application, the present invention provides the following technical solutions: A piezoelectric effect power generation device includes a box body, a piezoelectric material, and a side plate. The side plate and the box body are arranged in a sealed manner. The piezoelectric material is fixedly arranged on the side of the side plate facing the inside of the box body. The side plate is provided with a wire through hole for installing a wire connected to the piezoelectric material. A hole seal is arranged at the wire through hole. The box body is provided with a liquid through hole for introducing a pressurized liquid into the box body, and also includes a solenoid valve for controlling the pressurized liquid.

[0008] Preferably, the box body is provided with a window at the joint position with the side plate, which enables the piezoelectric material to extend into the box body.

[0009] Preferably, a side panel sealing gasket is further included, and the side panel sealing gasket is arranged between the side panel and the box body.

[0010] Preferably, it also includes a cover plate and a cover plate sealing gasket, the box body is provided with a cover plate window cooperating with the cover plate on the other side that does not cooperate with the side plate, the cover plate sealing gasket is arranged between the cover plate and the box body, and the liquid hole is arranged on the cover plate.

[0011] Preferably, it also includes a sealing film, which is arranged on the surface of the piezoelectric material.

[0012] Preferably, a boss is provided on the side of the side plate for fixing the piezoelectric material, a groove for fixing the piezoelectric material is provided on the boss, the piezoelectric material is fixed inside the groove by a rubber clip and a fixing gasket, and a guide wire hole is provided on the rubber clip to lead the wire connected to the piezoelectric material out of the box.

[0013] Preferably, the fixing gasket, the rubber clip and the piezoelectric material are sequentially sleeved in the groove.

[0014] Preferably, the piezoelectric material is fixed to the side plate by unilateral fixing.

[0015] Preferably, the solenoid valve is a solenoid valve capable of controlling the periodic change of the pressure of the pressure liquid entering the box.

[0016] Preferably, the piezoelectric material consists of a copper substrate and lead zirconate titanate PZT-5, the lead zirconate titanate PZT-5 is connected to the positive electrode wire, and the copper substrate is connected to the negative electrode wire.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This piezoelectric effect power generation device has a simple structure, is easy to manufacture and implement, and saves production costs.

[0018] 2. This piezoelectric effect power generation device uses the piezoelectric effect principle and the basic characteristics of piezoelectric materials to replace traditional pressure with liquid pressure and combine it with the former; its significant effect is that the liquid pressure can change the vertical height of the liquid and the area conversion of the liquid-solid connection, and its numerical value can be controlled according to the needs, and then the required pressure can be controlled by changing the force-bearing area of ​​the piezoelectric material, thereby controlling the charge, current and voltage of the piezoelectric material. Its comprehensive power generation effect is easier to control and apply.

[0019] 3. This piezoelectric effect power generation device uses an electromagnetic valve to control the conduction of liquid pressure. The piezoelectric material is subjected to periodic pressure, so that the characteristics of the piezoelectric material are fully utilized to achieve a high conversion rate. It is used in a new type of power generation and develops a new technical field based on basic characteristics.

[0020] 4. This piezoelectric effect power generation device is a new clean energy technology development and application. It is easier to control, store and apply than traditional power generation technology. It is an indispensable technical field in the future technological development and is also a new green new energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structural device of the present invention; Figure 2 It is a specific cross-sectional view of the interior of the box body of the structural device of the present invention; Figure 3 It is a partially enlarged cross-sectional view of the installation and fixing method of the piezoelectric material inside the box of the structural device of the present invention; Figure 4 It is a schematic diagram of the side plate structure of the present invention; In the figure, 1 is a box body, 2 is a cover plate, 3 is a cover plate gasket, 4 is a side plate, 5 is a hole seal, 6 is a side plate gasket, 7 is a liquid hole, 8 is a sealing film, 9 is a piezoelectric material, 10 is a rubber clip, 11 is a fixing gasket, 12 is a guide wire hole, 13 is a boss, 14 is a groove, and 15 is an electromagnetic valve. DETAILED DESCRIPTION

[0022] like Figures 1 to 3 The piezoelectric effect power generation device shown in the figure includes a box body 1, a cover plate 2, a cover plate gasket 3, a side plate 4, a hole seal 5, a side plate gasket 6, a liquid hole 7, a sealing film 8, a piezoelectric material 9, a rubber clip 10, a fixing gasket 11, and a solenoid valve 15. A window is provided at the front of the box body 1, and the side plate 4 is fixed to the window at the front of the box body 1 by screws. The side plate gasket 6 is installed between the side plate 4 and the box body 1, so that the side plate 4 and the box body 1 form a sealed state after being installed and matched, and the pressure liquid will not leak through the matching gap between the side plate 4 and the box body 1. Figure 4 As shown, the side portion of the side panel 4 for mounting the piezoelectric material 9 is provided with a boss, and a groove 14 is provided on the boss for fixing the piezoelectric material 9. The groove 14 is a rectangular groove, and may also be other shapes that are convenient for fixing the piezoelectric material 9. The fixing gasket 11, the rubber clip 10 and the piezoelectric material 9 are sequentially sleeved in the groove from the inner edge of the groove 14 to the middle of the groove 14 to fix the piezoelectric material 9 in the groove 14. The piezoelectric material 9 is fixed to the side panel 4 by a unilateral fixing method, and the fixed piezoelectric material 9 extends into the interior of the box body 1. The rubber clip 10 is provided with a guide wire hole 12 for leading the wire connected to the piezoelectric material 9 out of the box body 1. The guide wire hole 12 is connected to the wire through hole opened on the side panel, see Figure 2 and Figure 3 After the wire passes through the wire through hole, the hole seal 5 is installed at the wire through hole to seal the gap between the wire through hole and the wire, so that the pressure liquid cannot leak out of the box body 1 through the wire through hole 5. The sealing film 8 is set on the surface of the piezoelectric material 9. Figure 2The sealing film 8 protects the piezoelectric material 9 from contamination and attack by the pressure liquid, and makes the piezoelectric material 9 durable and maintains high power conversion efficiency. The piezoelectric effect power generation device has a simple structure, is easy to manufacture, and is easy to implement.

[0023] like Figure 1 and 2 As described, the box body 1 is provided with a cover window that matches the cover plate 2 on the other side that does not match the side plate 4. The setting of the cover window is conducive to the processing and maintenance of the piezoelectric effect power generation device. The cover plate 2 is installed at the cover window, and the cover plate 2 is installed at the cover window of the box body 1 by screw fixing. A cover sealing gasket 3 is sandwiched between the cover plate 2 and the box body 1, and the cover sealing gasket 3 can prevent the pressure liquid from leaking out of the box body 1 through the gap between the cover plate 2 and the box body 1. A liquid through hole 7 for passing the pressure liquid into the box body is provided on the cover plate 2, and a solenoid valve 15 that can control the periodic change of the pressure of the pressure liquid entering the box body is provided at the liquid through hole 7. The control of the liquid pressure by the solenoid valve 15 causes the piezoelectric material 9 to be subjected to periodic pressure, and the internal charge of the piezoelectric material 9 changes periodically to form a current. The piezoelectric material 9 is composed of a copper substrate and lead zirconate titanate PZT-5, the lead zirconate titanate PZT-5 is connected to the positive electrode wire, and the copper substrate is connected to the negative electrode wire.

[0024] Working principle: A connecting pipe (such as a PVC pipe) that can introduce pressurized liquid is installed at the liquid hole 7, so that the liquid pressure inside the box 1 is sufficient, so that the liquid pressure acts on the piezoelectric material 9, so that it has a corresponding pressure. After the piezoelectric material 9 is subjected to pressure, polarization will occur inside it, and opposite positive and negative charges will appear on its two opposite surfaces. That is, positive charges are accumulated at the lead zirconate titanate PZT-5 plate, and negative charges are accumulated at the copper substrate. Then, the solenoid valve 15 is used to control the periodic change of the liquid pressure inside the box 1, so that the piezoelectric material 9 generates charges and outputs electrical energy. When the piezoelectric material 9 is subjected to periodic frequency pressure by controlling the solenoid valve, the electrical energy output by the piezoelectric material 9 can be transmitted to external electrical equipment (such as light bulbs or light-emitting diodes, etc.) or energy storage equipment (batteries, etc.).

[0025] Application scenarios: For example, energy recovery of factory stamping equipment. When the stamping equipment stamps the workpiece, the strong impact force will not only produce positive work on the parts to be stamped, but also produce negative work on the machine tool base; these negative work is collected and stored in the pressure accumulator through the energy collector (for example, by installing a hydraulic cylinder under the machine tool base, which is the existing technology and will not be described in detail here). Then, the pressure accumulator is connected to the piezoelectric effect power generation device to convert the mechanical energy recovered from the stamping equipment into electrical energy. Similarly, the potential energy collected and converted into pressure energy from the tidal changes in the sea can be connected to the piezoelectric effect power generation device to convert tidal energy into electrical energy. Of course, we have many application scenarios, such as directly passing the pressure liquid generated in our industrial production or nature into the piezoelectric effect power generation device to generate electrical energy. After controlling and adjusting the output electrical energy (since the control and regulation of electrical energy is an existing technology, it will not be described in detail here), it can be applied to our daily life and industrial production.

[0026] In summary, the present invention provides a piezoelectric effect power generation device, which is a new clean energy technology development and application to solve the current problems of global traditional energy resource depletion and comprehensive development. Since the energy shortage problem is currently a mainstream problem in the world, the piezoelectric effect power generation device has obvious practical value.

[0027] Obviously, the above embodiments are merely examples for clearly explaining the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is impossible to cite all the embodiments here. However, these obvious changes or modifications derived from the spirit of the present invention still fall within the scope of protection of the present invention.

Claims

1. A piezoelectric effect power generation device, comprising a housing (1) and a piezoelectric material (9), characterized in that: The invention also includes a side plate (4), the side plate (4) and the box body (1) are arranged in a sealed manner, the piezoelectric material (9) is fixedly arranged on the side of the side plate (4) facing the inside of the box body (1), the side plate is provided with a wire through hole for installing a wire connected to the piezoelectric material (9), and a hole seal (5) is arranged at the wire through hole, the box body (1) is provided with a liquid through hole (7) for introducing a pressure liquid into the box body, and also includes a solenoid valve (15) for controlling the pressure liquid.

2. A piezoelectric effect power generation device according to claim 1, characterized in that: The box body (1) is provided with a window at a position where it cooperates with the side plate (4) so ​​as to allow the piezoelectric material (9) to extend into the box body (1).

3. A piezoelectric effect power generation device according to claim 2, characterized in that: It also includes a side plate sealing gasket (6), which is arranged between the side plate (4) and the box body (1).

4. A piezoelectric effect power generation device according to claim 3, characterized in that: It also includes a cover plate (2) and a cover plate sealing gasket (3); a cover plate window cooperating with the cover plate is provided on the other side of the box body (1) that does not cooperate with the side plate; the cover plate sealing gasket (3) is arranged between the cover plate (2) and the box body (1); and a liquid through hole (7) is arranged on the cover plate (2).

5. A piezoelectric effect power generation device according to claim 4, characterized in that: It also includes a sealing film (8), which is arranged on the surface of the piezoelectric material (9).

6. A piezoelectric effect power generation device according to claim 5, characterized in that: A boss (13) is provided on the side of the side plate (4) for fixing the piezoelectric material (9), and a groove (14) for fixing the piezoelectric material (9) is provided on the boss 13. The piezoelectric material (9) is fixed inside the groove (14) by a rubber clip (10) and a fixing gasket (11), and a guide wire hole (12) is provided on the rubber clip (10) for leading a wire connected to the piezoelectric material (9) out of the box (1).

7. A piezoelectric effect power generation device according to claim 6, characterized in that: The fixed gasket (11), the rubber clip (10) and the piezoelectric material (9) are sequentially sleeved in the groove (14).

8. A piezoelectric effect power generation device according to claim 7, characterized in that: The piezoelectric material (9) is fixed to the side plate (4) in a unilateral fixing manner.

9. A piezoelectric effect power generation device according to claim 8, characterized in that: The solenoid valve (15) is a solenoid valve capable of controlling the periodic change in the pressure of the pressure liquid entering the box (1).

10. A piezoelectric effect power generation device according to claim 9, characterized in that: The piezoelectric material (9) consists of a copper substrate and lead zirconate titanate PZT-5, the lead zirconate titanate PZT-5 is connected to the positive electrode wire, and the copper substrate is connected to the negative electrode wire.

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