KR20200029277A - Hitting type continuous piezoelectric generator - Google Patents

Abstract

According to the present invention, disclosed is a hitting type continuous piezoelectric generator which comprises: a first surface including a pressing unit which has elasticity and can be pressed and restored; and a second surface including a piezoelectric material which continuously generates power by receiving pressure of the pressing unit through continuous rotation or continuous sliding of the first surface on which the pressing unit is installed. Accordingly, various natural power such as wind power, tidal power, water power and the like, or the existing unused artificial energy (vibration power of a road generated after a vehicle passes by, vibration power inside a vehicle, etc.) which is lost without being collected is collected, and power is continuously generated by receiving pressure of the pressing unit. In addition, a waveform of electricity generated in a piezoelectric material is generated as a waveform where both a (+) wave and a (-) wave are generated, that is, a sine wave of high quality, and it is possible to reduce risk of a piezoelectric material being worn or damaged due to hitting by a pressing unit having elasticity to be pressed and restored.

Description

Strike type piezoelectric generator {HITTING TYPE CONTINUOUS PIEZOELECTRIC GENERATOR}

The present invention relates to a striking type continuous piezoelectric generator, more specifically, various natural forces such as wind power, tidal power, or hydraulic power, or unused artificial energy (existing after the vehicle passes, which is not recovered). Power, vibration inside the vehicle, etc.), and the pressure is generated by the pressurization, and the electric wave generated from the piezoelectric material generates both '+' and '-' waves, that is, high quality The present invention relates to a continuous-type piezoelectric generator capable of generating a sinusoidal wave and reducing the risk of abrasion or damage due to a hitting of a piezoelectric material due to a pressurized portion having elasticity and being pressurized and restored.

A piezoelectric effect element is a device that uses crystals or piezoelectric ceramics that generate voltage when mechanical stress is applied and distorts when voltage is applied, and changes voltage when applied pressure (piezoelectric effect). Refers to a device having a property of expanding or contracting.

There are also known piezoelectric ceramics sintered with crystal or barium titanate known from the past, but the most widely used is lead zirconate titanate (weak PZT), which can be found in ignition devices of lighters and gas appliances. It is used as a knock sensor or various pressure sensors in automobiles.

The concept of various energy generating devices or power generating devices using such piezoelectric elements is being researched and developed.

There are a variety of techniques filed by the applicant and its affiliates. For example, see Patent No. 1319668 (registered on October 11, 2013), "The piezoelectric harvesting system using a repulsive force according to an embodiment of the present invention, a piezoelectric body made of a piezoelectric material; the piezoelectric body is attached to at least one surface It includes; a support portion for supporting one side of the fixing portion; and an external force is applied to the fixing portion to provide a repelling force to the fixing portion when it is restored after being deformed, thereby providing a repulsive force providing portion to generate electric energy. According to an embodiment of the present invention, when the fixing part to which the piezoelectric body is attached is restored after being deformed, an additional impact is applied by the repulsive force providing unit to increase the amount of electric energy generated due to the deformation of the piezoelectric body. " This is disclosed.

The above-mentioned patent discloses a technique for generating piezoelectric power by providing a repulsive force to a fixed part, but continuously generates electricity by being pressurized by a pressing portion, and both the '+' wave and the '-' wave of the electric wave generated in the piezoelectric material are generated. It is possible to reduce the risk of abrasion or damage caused by the hitting of the piezoelectric material due to the pressurized portion that is pressurized and restorable due to its elastic waveform, i.e., high-quality sinusoidal wave. It is not disclosed.

Republic of Korea Patent No. 1319668 (registered on October 11, 2013), title of invention: Piezoelectric harvesting system using repulsive force {PIEZOELECTRIC HARVESTING SYSTEM USING REPULSIVE POWER}

The present invention was created to solve the above-mentioned problems, and the present invention provides various natural forces, such as wind power, tidal power, and hydraulic power, or unused artificial energy that is not recovered and disappears. Vibration force, vibration force in the vehicle, etc.) is recovered, and the pressure is generated by the pressurizing portion, and the electric wave generated from the piezoelectric material generates both '+' and '-' waves, that is, high quality. It is an object of the present invention to provide a striking continuous piezoelectric generator capable of reducing the risk of abrasion or damage of a piezoelectric material due to a pressurized portion having elasticity and having a variety of expansion possibilities by generating a sinusoidal wave, and having elasticity. .

Stroke-type continuous piezoelectric generator according to an embodiment of the present invention for achieving the above object has a first surface including a pressing portion that can be elastic and pressurized; And a second surface including a piezoelectric material that continuously generates power by receiving the pressure of the pressing part through continuous rotation or continuous sliding of the first surface on which the pressing part is installed.

Here, the first surface and the second surface each have a flat plate structure or a cylindrical structure, and the first surface is a continuous front-to-back reciprocating motion, left-right reciprocating motion, vertical reciprocating motion with respect to the second surface. It may be any one or more of a motion, a linear reciprocating motion, and a rotational motion.

In addition, the piezoelectric material may be manufactured in a structure in which the piezoelectric material undergoes piezoelectric power generation two or more times by being continuously displaced or deformed two or more times.

In addition, a third surface that is located on the opposite side of the first surface based on the second surface and includes a pressing portion capable of pressing and restoring with elasticity; further comprising a double-sided surface of the second surface. The pressure of the first surface and the third surface is continuously pressurized with a parallax, and the waveform of electricity generated from the piezoelectric material of the second surface may be a waveform in which both '+' and '-' waves are generated.

In addition, the first surface, the second surface and the third surface each have a flat plate structure or a cylindrical structure, and the first surface and the third surface are continuous with respect to the second surface. It may be any one or more of forward and backward reciprocating motion, left and right reciprocating motion, vertical reciprocating motion, linear reciprocating motion, and rotational motion.

In addition, the piezoelectric generator may be used as a hybrid generator by mixing and mounting an existing winding generator.

In addition, the number or shape of the piezoelectric material of the second surface or the number or shape of the pressing portion of the first surface and the third surface of the piezoelectric generator or the frequency of the electric waveform generated by the piezoelectric generator is changed. Or by changing the driving speeds of the first and third surfaces, or by combining them, controlling the speed of generation of the piezoelectric material of the second surface, or controlling the frequency of the piezoelectrically generated electric waveform. Alternatively, the high-frequency component included in the piezoelectric-generated electric waveform may be controlled, or the waveform of the piezoelectric-generated electricity may be controlled.

In addition, the first side and the second side of the drive, and further comprising an automatic transmission for shifting the driving of the third side and the second side, using the automatic transmission, to the external energy size Accordingly, the driving speeds of the first surface and the third surface may be adjusted to control the amount of electricity in the piezoelectric power generation of the second surface.

On the other hand, the strike-type continuous piezoelectric generator according to the present invention, further comprising a mechanical energy storage unit, it is possible to receive the energy stored in the mechanical energy storage unit, the strike-type continuous piezoelectric power generation.

In addition, it may further include an electrical energy storage unit for storing the electrical energy generated from the striking continuous piezoelectric generator.

Further, the mechanical energy storage unit may have an energy spring mechanism stored at a fluid pressure.

In addition, the pressing portion, the spring protruding toward the second surface, it is possible to elastically press the second surface.

In addition, the pressing portion may protrude toward the second surface, and may be an airbag type that is a closed air bag, capable of elastically pressing the second surface.

In addition, the pressing portion may be an elastic pin type protruding toward the second surface, capable of elastically pressing the second surface.

In addition, the pressing portion may be a rubber ball type protruding toward the second surface, capable of elastically pressing the second surface.

On the other hand, by attaching one or more permanent magnets to the first surface, the second surface, and the third surface, the piezoelectric material is pressurized by the pressing portions of the first surface or the third surface to generate piezoelectric power. At the same time, the piezoelectric material may have a structure in which piezoelectric power is generated by displacing or deforming the piezoelectric material in a non-contact manner by the magnetic force of the permanent magnet.

Strike type piezoelectric generator according to the present invention,

 First, it is possible to provide a blow-type continuous piezoelectric generator that recovers various natural forces, such as wind power, tidal power, and hydraulic power, or unused artificial energy that is not recovered and disappears.

Second, the continuous rotation or sliding method is applied to the continuous pressurization to cause continuous power generation.

Third, despite the striking method, the waveform of electricity generated from the piezoelectric material is a high-quality sine wave or a waveform close to a sine wave in which both '+' and '-' waves are generated, and thus has various expansion possibilities.

Fourth, it is possible to significantly reduce the risk of abrasion or damage to the piezoelectric material due to the impact due to the pressurization portion having elasticity and pressurization and restoration.

1 is an illustration of a first side comprising a pressurizing portion in a striking continuous piezoelectric generator according to a preferred embodiment of the present invention.
Figure 2 is another example of the first side including a pressing portion in the strike type continuous piezoelectric generator according to a preferred embodiment of the present invention.
3 is another example of a first surface including a pressurizing portion in a striking continuous piezoelectric generator according to a preferred embodiment of the present invention.
4 is another example of a first surface including a pressurizing part in a striking continuous piezoelectric generator according to a preferred embodiment of the present invention.
5 is another example of a first surface including a pressurizing part in a striking continuous piezoelectric generator according to a preferred embodiment of the present invention.
6 is a view showing a case in which the first surface including the pressurizing part in the hitting type continuous piezoelectric generator according to the preferred embodiment of the present invention is a rotating rotor.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or lexical meanings, and the inventor appropriately explains the concept of terms to explain his or her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Therefore, the embodiments shown in the embodiments and the drawings described in this specification are only the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, and at the time of this application, various alternatives are possible. It should be understood that there may be equivalents and variations.

1 to 5 are examples of a first surface including a pressing part in a striking continuous piezoelectric generator according to a preferred embodiment of the present invention, and FIG. 6 is a striking continuous piezoelectric generator according to a preferred embodiment of the present invention This is a view showing a case where the first surface including the pressing portion is a rotating rotor.

Stroke-type continuous piezoelectric generator according to an embodiment of the present invention has a first surface including a pressing portion having elasticity and pressurization and restoration, and through continuous rotation or continuous sliding of the first surface on which the pressing portion is installed, the It has a second surface including a piezoelectric material that continuously generates electricity by being pressurized by the pressing portion.

Here, pressurization refers to hitting or applying pressure to the piezoelectric material. Looking in more detail with respect to the pressing portion, as shown in Figures 1 and 2, the pressing portion, the spring protruding toward the second surface, it is possible to elastically press the second surface. The extruded protruding spring may be hemispherical or cylindrical.

In addition, as shown in Figure 3, the pressing portion protrudes toward the second surface, it is possible to elastically press the second surface, it can be an airbag or gas bag type that is a closed air bag.

In addition, as shown in Figure 4, the pressing portion may be of an elastic pin type protruding toward the second surface, capable of elastically pressing the second surface.

In addition, as shown in FIG. 5, the pressing portion may be a rubber ball type protruding toward the second surface, capable of elastically pressing the second surface.

In addition to FIGS. 1 to 5, while the pressing portion can be pressed toward the second surface, it can take various forms capable of elastic pressing and elastic restoration, so as not to damage or damage the piezoelectric element on the second surface.

It is possible for the pressing portion to be mechanically integrated to the first and third surfaces, that is to say, attached to the surface with a physical or chemical or other material.

Here, the first surface and the second surface each have a flat plate structure or a cylindrical structure, and the first surface has a continuous front-rear reciprocating motion, a left-right reciprocating motion, a vertical reciprocating motion, and a straight reciprocating motion with respect to the second face. It may be any one or more of a movement and rotational movement.

In addition, the piezoelectric material herein may be manufactured in a structure in which the piezoelectric material undergoes piezoelectric power generation two or more times by being continuously displaced or deformed two or more times.

Furthermore, a third side may be further included. At this time, the third surface is located on the opposite side of the first surface with respect to the second surface, and includes a pressing portion having elasticity and capable of pressing and restoring. Both sides of the second side, i.e. the front and back sides of the second side when the second side is flat, or the inner and outer sides of the second side when the second side is cylindrical, the first side and the third side Pressurization is staggered, preferably pressurized continuously with the same parallax, so that the waveform of electricity generated from the piezoelectric material on the second surface generates a sinusoidal wave in which both '+' and '-' waves are generated.

As described above, the first surface, the second surface and the third surface each have a flat plate structure or a cylindrical structure, and the first surface and the third surface are continuously moved back and forth with respect to the second surface. , Left and right reciprocating motion, up and down reciprocating motion, linear reciprocating motion, rotational motion may be any one or more.

In addition, a piezoelectric generator may be used as a hybrid generator by mixing and mounting an existing winding generator.

In addition, the number or shape of the piezoelectric material of the second surface or the number or shape of the pressing portion of the first surface and the third surface of the piezoelectric generator or the frequency of the electric wave generated by the piezoelectric generator is changed. Control the speed of generation of the piezoelectric material of the second surface, or control the frequency of the piezoelectrically generated electrical waveform, by changing or changing the driving speed of the first and third surfaces, or a combination thereof; or The high-frequency component included in the piezoelectric-generated electric waveform may be controlled, or the waveform of the piezoelectric-generated electricity may be controlled.

In addition, an automatic transmission unit capable of shifting the driving of the first and second surfaces and driving of the third and second surfaces is further provided. Using such an automatic transmission, the driving speeds of the first and third surfaces may be adjusted according to the amount of power generated from external renewable energy to control the amount of electricity in the piezoelectric power generation on the second surface.

On the other hand, in the blow-type continuous piezoelectric generator according to the present invention, it is rotated by various natural forces such as wind power, tidal power, or hydraulic power, or unused artificial energy that is not recovered and is extinguished. Will be recovered.

At this time, the piezoelectric power generation (mechanical-electrical energy conversion unit for converting mechanical energy to electrical energy) may be directly connected to the strike-type continuous piezoelectric generator according to the present invention, but the mechanical energy storage unit for storing mechanical energy at the front end Including further, receives the energy stored in the mechanical energy storage unit, and performs continuous piezoelectric power generation. Through this, the characteristics of continuous piezoelectric power generation are improved, and the quality of the generated waveform can be made closer to that of a sinusoidal wave.

For example, the mechanical energy storage unit may have an energy spring mechanism stored at a fluid pressure. Alternatively, it is possible to adopt a configuration that stores mechanical energy such as vibration due to the load of a vehicle passing through a road (mobile road, highway, railway, etc.) in the form of hydraulic or pneumatic, followed immediately by the striking continuous piezoelectricity of the present invention. It is possible to be connected to the power generation unit.

In addition, it may further include an electrical energy storage unit for storing the electrical energy generated from the strike-type continuous piezoelectric generator.

On the other hand, this application is the applicant's Republic of Korea Patent Application No. 10-2018-055071 (2018.05.14.application, the name of the invention: non-contact continuous piezoelectric generator using magnetic force), except for the fundamental difference between the strike type and the non-contact type For parts related to continuous piezoelectric power generation, reference is made to the description in this application.

Further, if necessary, by attaching one or more permanent magnets to the first, second, and third surfaces, the piezoelectric material is pressurized by the pressing portion of the first or third surface, and piezoelectric power is generated at the same time. , By the displacement or deformation of the piezoelectric material in a non-contact manner by the magnetic force of the permanent magnet can take the structure of piezoelectric power generation in the piezoelectric material.

We request the following in advance.

(Patent claim 1: Strike type cylindrical continuous piezoelectric power generation)

1. Production of Piezoelectric Generator

Two or more power generation cylinders with different diameters are installed on the inside and outside, but a large diameter power generator is installed on the outside and a small diameter power generator is installed side by side in order, so that the pressurized material attached to the power generation is adjacent to the power generation. Arranged so that the piezoelectric material of the cylinder can be pressurized, and when driven, the piezoelectric material directly or indirectly affects the piezoelectric material so that each piezoelectric material is displaced or deformed two or more times in succession, so that each piezoelectric material continuously generates piezoelectric power twice or more. Structured. At this time, the piezoelectric material adheres both ends of the material directly or indirectly to the substrate.

2. By placing two or more power generating cylinders in the above paragraph 1, when driving, the pressurized material presses the piezoelectric material two or more times in succession, so that each piezoelectric material in the power generating tube is displaced or deformed twice or more continuously, and the piezoelectric electricity is continuously applied two or more times The device or component of the method of generating it. (Continuous power generation by piezoelectric material)

3. In the above paragraph 1, the pressurized material of the other power generation plates arranged adjacent to the front and back sides of the power generation cylinder piezoelectric material is continuously pressed with the time difference between the front and back surfaces of the power generation plate piezoelectric material to the front and back. Apparatus or component of a method in which a primary electric wave from a piezoelectric material generates both '+' and '-' waves by continuous displacement or deformation. (Piezoelectric material double-sided power generation)

4. The device or component of the method in which the piezoelectric materials in two or more power generating cylinders in the above 1 generate electricity respectively. (Section of Multiple Power Generation Structure)

5. In the above 1 to 4, by changing the shape or frequency of the wave of electricity generated by piezoelectricity, change the number or shape of the pressurized material attached to the generator or change the number or shape of the piezoelectric material of the generator. Or, by changing the driving speed of the generator, or by combining them, controlling the speed of generation of the piezoelectric material, controlling the frequency of the piezoelectrically generated electricity, or controlling the high frequency components included in the piezoelectrically generated electric waveform, or piezoelectrically generated. A device or component of a method for controlling the waveform of electricity. (Electric wave form and frequency control term)

6. Adjust the number of piezoelectric materials generated by increasing or decreasing the number of piezoelectric materials participating in power generation by adjusting the driving number of the power generation tube according to the amount of external energy using the automatic transmission for items 1 to 4 above. How to device or part. (Differential power generation depending on the amount of energy)

7. A device or component of a method of mixing the piezoelectric generator according to the above 1-4 and an existing winding type generator and using it as a hybrid generator. (Hybrid development port)

8. In the above 1 to 4, by attaching one or more permanent magnets to one or more power generation cylinders, a device or component having a structure in which piezoelectric materials are displaced or deformed by mixing magnetic force between a pressurized material and a permanent magnet to generate piezoelectric power. (Pressure and magnetic force mixing terms)

(Patent claim 2: Strike type flat piezoelectric power generation)

1. Production of Piezoelectric Generator

Two or more power generating plates are placed next to each other so that the pressurized material can press the piezoelectric material, but when driven, the piezoelectric material directly or indirectly affects the piezoelectric material installed on the power generating plate, so that each piezoelectric material is displaced more than once. Or by making it deform, each piezoelectric material is produced in a structure in which piezoelectric power generation is performed twice or more continuously. At this time, the piezoelectric material adheres both ends of the material directly or indirectly to the substrate.

2. When driving in the above 1, by placing two or more power generating plates so that the pressurized material presses the piezoelectric material two or more times in succession, each piezoelectric material of the power generating plate is displaced or deformed twice or more continuously, so that the piezoelectric electricity is applied twice or more. Apparatus or parts of a method that occurs continuously. (Continuous power generation for each piezoelectric material)

3. In the above 1, the pressurized material of the other power generation plates arranged adjacent to the front and back sides of the power generation plate piezoelectric material side is continuously pressurized the piezoelectric material of the power generation plate with a time difference, and the piezoelectric material is moved forward and backward. Apparatus or component of a method in which a primary electric wave from a piezoelectric material generates both '+' and '-' waves by continuous displacement or deformation. (Piezoelectric material double-sided power generation)

4. In the above 1, two or more power generating plates are arranged adjacent to each other so that the piezoelectric materials in the two or more generating plates generate electricity, respectively. (Section of multiple power generation board structure)

5. Change the number or shape of the pressurized material attached to the power generation plate or the number or shape of the piezoelectric material of the power generation plate by controlling the shape or frequency of the wave of the piezoelectrically generated electricity in paragraphs 1 to 4 above. Or, by changing the driving speed of the power generation plate, or a combination thereof, controlling the speed of generation of the piezoelectric material, controlling the frequency of the piezoelectrically generated electricity, or controlling the high frequency component included in the piezoelectrically generated electric waveform, or piezoelectrically generated. A device or component of a method for controlling the waveform of electricity. (Electric waveform and frequency control term)

6. The method of controlling the number of piezoelectric materials participating in power generation or controlling the amount of piezoelectric power generated by adjusting the driving number of the power generation plate according to the external energy size using the automatic transmission in 1 to 4 above. Devices or parts. (Differential power generation depending on the amount of energy)

7. A device or component of a method of mixing the piezoelectric generator according to the above 1 to 4 with an existing winding type generator and using it as a hybrid generator. (Hybrid development port)

8. In the above 1 to 4, by attaching one or more permanent magnets to one or more power generating plates, a device or component having a structure for piezoelectric power generation by displacing or deforming a piezoelectric material by mixing or displacing a magnetic force between a pressurized material and a permanent magnet. (Pressure and magnetic force mixing terms)

As described above, although the present invention has been described by a limited number of embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following will be described by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of the claims to be described.

Claims (16)

A first surface having elasticity to include a pressing portion capable of pressing and restoring; And
Containing; including, through the continuous rotation or continuous sliding of the first surface on which the pressing portion is installed, the piezoelectric material receiving the pressure of the pressing portion to continuously generate electricity;
Strike type piezoelectric generator.
According to claim 1,
Each of the first surface and the second surface has a flat plate structure or a cylindrical structure,
The first surface is characterized in that at least one of a continuous forward and backward reciprocating motion, left and right reciprocating motion, vertical reciprocating motion, linear reciprocating motion, rotational motion with respect to the second surface,
Strike type piezoelectric generator.
According to claim 2,
The piezoelectric material is manufactured by a structure in which the piezoelectric material undergoes piezoelectric power generation two or more times by being continuously displaced or deformed twice or more,
Strike type piezoelectric generator.
The method of claim 3,
The third surface is located on the opposite side of the first surface with respect to the second surface, the elastic surface has a pressing portion capable of pressing and restoring; further comprising,
With respect to both surfaces of the second surface, the pressure of the first surface and the third surface is continuously pressurized with a time difference, so that the waveforms of electricity generated from the piezoelectric material of the second surface are '+' wave and '-'. Characterized in that the wave is a waveform that all occur,
Strike type piezoelectric generator.
The method of claim 4,
Each of the first surface, the second surface and the third surface has a flat plate structure or a cylindrical structure,
The first surface and the third surface, characterized in that any one or more of a continuous forward and backward reciprocating motion, left and right reciprocating motion, vertical reciprocating motion, linear reciprocating motion, rotational motion with respect to the second surface,
Strike type piezoelectric generator.
The method of claim 5,
The piezoelectric generator is used by mixing a conventional winding-type generator is used as a hybrid generator,
Strike type piezoelectric generator.
The method of claim 5,
Change the number or shape of the piezoelectric material of the second side or the number or shape of the pressing portion of the first side and the third side of the frequency of the electric wave or the electric waveform of the piezoelectricity generated in the piezoelectric generator. Control the generation speed of the piezoelectric material of the second surface, or control the frequency of the piezoelectrically generated electric waveform, or change the driving speed of the first surface and the third surface, or a combination thereof. Characterized in that to control the high-frequency component contained in the generated electrical waveform or to control the waveform of the piezoelectric generated electricity,
Strike type piezoelectric generator.
The method of claim 7,
Further comprising an automatic transmission for shifting the driving of the first surface and the second surface, and the driving of the third surface and the second surface,
Characterized in that by using the automatic transmission, by controlling the driving speed of the first and third surfaces according to the amount of external energy, to control the amount of electricity of the piezoelectric power generation of the second surface,
Strike type piezoelectric generator.
The method of claim 8,
Further comprising a mechanical energy storage unit,
Receiving the energy stored in the mechanical energy storage unit, characterized in that for the continuous continuous piezoelectric power generation,
Strike type piezoelectric generator.
The method of claim 9,
Further comprising an electrical energy storage unit for storing the electrical energy generated by the striking continuous piezoelectric generator,
Strike type piezoelectric generator.
The method of claim 10,
The mechanical energy storage unit, having a fluid pressure stored energy spring mechanism,
Strike type piezoelectric generator.
The method of claim 11,
The pressing portion, the spring protruding toward the second surface, it is possible to elastically press the second surface,
Strike type piezoelectric generator.
The method of claim 11,
The pressing portion, protruding toward the second surface, characterized in that the airbag type that is a closed air bag, capable of elastically pressing the second surface,
Strike type piezoelectric generator.
The method of claim 11,
The pressing portion, characterized in that the elastic pin type protruding toward the second surface, it is possible to elastically press the second surface,
Strike type piezoelectric generator.
The method of claim 11,
The pressing portion, characterized in that the rubber ball type protruding toward the second surface, capable of elastically pressing the second surface,
Strike type piezoelectric generator.
The method according to any one of claims 12 to 15,
By attaching one or more permanent magnets to the first surface, the second surface, and the third surface, the piezoelectric material is pressed by the pressing portions of the first surface or the third surface to generate piezoelectric power at the same time, The piezoelectric material is displaced or deformed in a non-contact manner by the magnetic force of the permanent magnet.
Strike type piezoelectric generator.

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