A kind of impact ball type wind piezoelectric power generation device and method

Abstract

The present invention provides an impact ball type wind piezoelectric power generation device and method, wherein a turbine structure is arranged at the lower section of a frame structure, a piezoelectric vibrator cavity is arranged at the upper section, and a baffle is arranged between the upper section and the lower section; the turbine structure comprises a base and a turbine arranged on the base, a rotating shaft is coaxially arranged at the top of the turbine, the rotating shaft passes through the baffle, and a fan blade is arranged at the free end; a gap is arranged between the fan blade and the baffle; a plurality of elastic balls are arranged in the piezoelectric vibrator cavity, and the structure of the present invention is simple, and the fan blades are driven to rotate by the rotation of the turbine to hit the elastic balls, wherein any rotation direction of the turbine can realize the power generation process, and the versatility is strong, the inner wall of the piezoelectric vibrator cavity is elastically deformed by the impact of the elastic balls, and the mechanical energy is converted into electrical energy during the recovery process of the inner wall of the piezoelectric vibrator cavity, so that electrical energy can be obtained continuously and stably, thereby solving the charging demand of high-altitude electronic equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of power generation, and in particular relates to an impact ball type wind piezoelectric power generation device and method. Background Art

[0002] With the development of sensor technology, many ultra-low power sensors have emerged. These ultra-low power sensors enable the electrical energy generated by piezoelectric materials to meet their power supply needs.

[0003] At present, most sensors use batteries. Sometimes the working environment of sensors is special and they need to be installed in places that are difficult for humans to access or dangerous. For example, thermal power plants need to detect gas pollutants, and air quality detection sensors need to be installed 50m above the ground. There are also sensors for air quality detection in remote mountainous areas, canyons, high-altitude cables, and weather stations. The battery energy storage of sensors is limited and needs to be replaced regularly, which will cause instability or even danger. In nature, solar energy, tidal energy, and wind energy are widely present, among which solar power generation and development are very mature. As a green and environmentally friendly renewable resource, wind energy is increasingly valued by countries around the world. Its potential is huge, which is 10 times greater than the total amount of water energy that can be developed and utilized on the earth.

[0004] At present, the main ways for wind piezoelectric power generation devices to achieve energy recovery are free vibration and forced vibration depending on the different excitation methods. Forced vibration is generally when wind energy drives the fan to rotate, and the fan blades hit the piezoelectric vibrator of the cantilever beam structure. In actual work, this method needs to consider the wind direction, and when the wind speed is too high, the fan blades rotate too fast, and the piezoelectric vibrator of the cantilever beam structure is difficult to recover to normal after being hit and deformed, resulting in poor power generation effect; free vibration is further divided into inertial vibration and impact vibration. Inertial vibration is to add a mass block to the tail of the cantilever beam, and the wind directly contacts the cantilever beam to deform the piezoelectric vibrator to generate electricity, but these devices have a small windward area, so the energy obtained is extremely small; and impact vibration is when an object with a large potential energy suddenly hits the piezoelectric vibrator. At the moment of impact, the energy is very good, but the disadvantage is that the impact cannot be sustained. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides an impact ball type wind piezoelectric power generation device and method, which has a simple structure and can continuously and stably convert wind energy into electrical energy.

[0006] The present invention is achieved through the following technical solutions:

[0007] An impact ball type wind piezoelectric power generation device comprises a frame structure, wherein a turbine structure is arranged at the lower section of the frame structure, a piezoelectric vibrator cavity is arranged at the upper section, and a baffle is arranged between the upper section and the lower section;

[0008] The turbine structure comprises a base and a turbine arranged on the base, a rotating shaft is coaxially arranged on the top of the turbine, the rotating shaft penetrates the baffle, and a fan blade is arranged at the free end;

[0009] The gap between the fan blade and the baffle is set;

[0010] A plurality of elastic balls are arranged in the piezoelectric vibrator cavity.

[0011] Preferably, the frame structure includes a plurality of support columns vertically arranged on the base and penetrating the baffle.

[0012] Preferably, there are four support columns, and first through holes are arranged at four corners of the baffle, and the four support columns are respectively and one by one correspondingly arranged to penetrate the first through holes.

[0013] Preferably, cylindrical buckles are provided at equal height positions on the shafts of the plurality of support columns for supporting the baffle.

[0014] Preferably, the cylindrical buckle is slidably arranged on the supporting column body along the vertical direction.

[0015] Preferably, the piezoelectric vibrator cavity comprises a plurality of piezoelectric vibrators, and the plurality of piezoelectric vibrators are respectively fixed between adjacent supporting columns and at top ends of a plurality of supporting columns to form a cavity structure.

[0016] Preferably, the piezoelectric vibrator comprises a piezoelectric ceramic and a beryllium copper substrate bonded to each other;

[0017] The beryllium copper substrate is arranged inside the piezoelectric vibrator cavity, and the piezoelectric ceramic is arranged outside the piezoelectric vibrator cavity.

[0018] Preferably, a plurality of fan blades are arranged at the free end of the rotating shaft; a gap is arranged between the fan blade and the inner wall of the piezoelectric vibrator cavity, and the gap is smaller than the diameter of the elastic ball.

[0019] Preferably, the plurality of elastic balls is three.

[0020] A small ball impact wind piezoelectric power generation method, comprising the following steps:

[0021] The turbine is rotated by wind force, and the turbine drives the blades to rotate through the rotating shaft. The blades hit multiple elastic balls during the rotation process;

[0022] A plurality of elastic balls collide with the inner wall of the piezoelectric vibrator cavity, causing the inner wall of the piezoelectric vibrator cavity to form elastic deformation, and converting mechanical energy into electrical energy during the recovery process of the inner wall of the piezoelectric vibrator cavity.

[0023] Compared with the prior art, the present invention has the following beneficial technical effects:

[0024] The present invention provides an impact ball type wind piezoelectric power generation device and method, wherein a turbine structure is arranged at the lower section of a frame structure, a piezoelectric vibrator cavity is arranged at the upper section, and a baffle is arranged between the upper section and the lower section; the turbine structure comprises a base and a turbine arranged on the base, a rotating shaft is coaxially arranged at the top of the turbine, the rotating shaft passes through the baffle, and a fan blade is arranged at the free end; a gap is arranged between the fan blade and the baffle; a plurality of elastic balls are arranged in the piezoelectric vibrator cavity, and the structure of the present invention is simple, and the fan blades are driven to rotate by the rotation of the turbine to hit the elastic balls, wherein any rotation direction of the turbine can realize the power generation process, and the versatility is strong, the inner wall of the piezoelectric vibrator cavity is elastically deformed by the impact of the elastic balls, and the mechanical energy is converted into electrical energy during the recovery process of the inner wall of the piezoelectric vibrator cavity, so that electrical energy can be obtained continuously and stably, thereby solving the charging demand of high-altitude electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of an impact ball type wind piezoelectric power generation device of the present invention;

[0026] Figure 2 It is a schematic structural diagram of the piezoelectric vibrator cavity of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the piezoelectric vibrator of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the fan blade of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the baffle of the present invention.

[0030] In the figure: 1. piezoelectric vibrator cavity; 2. rotating shaft; 3. turbine structure; 4. base; 6. support column; 7. cylindrical buckle; 11. piezoelectric vibrator; 111. piezoelectric ceramics; 112. beryllium copper substrate; 12. elastic ball; 13. fan blade; 14. baffle; 30. turbine; 141. first through hole; 142. second through hole. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0032] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] The present invention provides an impact ball type wind piezoelectric power generation device, such as Figure 1 As shown, it comprises a frame structure, wherein the lower section of the frame structure is provided with a turbine structure 3, the upper section is provided with a piezoelectric vibrator cavity 1, and a baffle 14 is provided between the upper section and the lower section;

[0035] The turbine structure 3 includes a base 4 and a turbine 30 disposed on the base 4. A rotating shaft 2 is coaxially disposed on the top of the turbine 30. The rotating shaft 2 passes through the baffle 14 and has a fan blade 13 disposed at the free end.

[0036] The fan blade 13 and the baffle 14 are provided with a gap;

[0037] A plurality of elastic balls 12 are arranged in the piezoelectric vibrator cavity 1 .

[0038] Preferably, Figure 5 As shown, the frame structure includes a plurality of support columns 6 vertically arranged on the base 4 and penetrating the baffle 14; further, there are four support columns 6, and the baffle 14 is provided with first through holes 141 at four corners, and the four support columns 6 are respectively and one by one correspondingly penetrated with the first through holes 141; a second through hole 142 is provided at the center of the baffle 14, and the rotating shaft 2 is provided through the second through hole 142, wherein the baffle 14 functions to improve the supporting strength of the frame structure, that is, the supporting strength of the support columns 6, and at the same time, is used to block the elastic balls 12.

[0039] Preferably, cylindrical buckles 7 are provided at equal height positions on the shafts of the multiple support columns 6 for supporting the baffle 14; further, the cylindrical buckles 7 are slidably provided on the shafts of the support columns 6 along the vertical direction, and technicians in this field can adjust the height of the baffle 14 in the vertical direction according to the number of elastic balls 12 and the required power generation, thereby giving the elastic balls 12 a certain range of motion.

[0040] Preferably, Figure 2 and Figure 3As shown, the piezoelectric vibrator cavity 1 includes a plurality of piezoelectric vibrators 11, and the plurality of piezoelectric vibrators 11 are respectively fixed between adjacent support columns 6 and the top ends of a plurality of support columns 6 to form a cavity structure; further, the piezoelectric vibrator 11 includes a piezoelectric ceramic 111 and a beryllium copper substrate 112 bonded to each other; the beryllium copper substrate 112 is arranged on the inner side of the piezoelectric vibrator cavity 1, and the piezoelectric ceramic 111 is arranged on the outer side of the piezoelectric vibrator cavity 1; specifically, the piezoelectric ceramic 111 is an information functional ceramic material that can convert mechanical energy and electrical energy into each other, and the beryllium copper substrate 112 has high electrical conductivity, thermal conductivity, high hardness and wear resistance, high creep resistance and corrosion resistance, and they cooperate with each other to form a stable and durable power generation structure.

[0041] Preferably, Figure 4 As shown, there are multiple fan blades 13 set at the free end of the rotating shaft 2; a gap is set between the fan blades 13 and the inner wall of the piezoelectric vibrator cavity 1, and the gap is smaller than the diameter of the elastic ball 12; to prevent the elastic ball from being stuck in the gap between the fan blades 13 and the inner wall of the piezoelectric vibrator cavity 1, thereby causing the problem of low power generation efficiency.

[0042] Preferably, there are three elastic balls 12 , and those skilled in the art can set the number of elastic balls 12 according to actual conditions, including geographical location, average wind speed and wind volume, and power demand.

[0043] The present invention provides an impact ball type wind piezoelectric power generation method, comprising the following steps:

[0044] The turbine 30 is rotated by wind force, and the turbine 30 drives the blades 13 to rotate through the rotating shaft 2, and the blades 13 hit the multiple elastic balls 12 during the rotation process;

[0045] The multiple elastic balls 12 collide with the inner wall of the piezoelectric vibrator cavity 1 , causing the inner wall of the piezoelectric vibrator cavity 1 to undergo elastic deformation. During the recovery process of the inner wall of the piezoelectric vibrator cavity 1 , mechanical energy is converted into electrical energy.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An impact ball type wind piezoelectric power generation device, characterized in that: It comprises a frame structure, wherein the lower section of the frame structure is provided with a turbine structure (3), the upper section is provided with a piezoelectric vibrator cavity (1), and a baffle (14) is provided between the upper section and the lower section; The turbine structure (3) comprises a base (4) and a turbine (30) arranged on the base (4); a rotating shaft (2) is coaxially arranged on the top of the turbine (30); the rotating shaft (2) passes through the baffle (14) and has a fan blade (13) at its free end; A gap is provided between the fan blade (13) and the baffle plate (14); A plurality of elastic balls (12) are arranged in the piezoelectric vibrator cavity (1); The frame structure comprises a plurality of support columns (6) vertically arranged on the base (4) and penetrating the baffle (14); A plurality of fan blades (13) are arranged at the free end of the rotating shaft (2); a gap is arranged between the fan blades (13) and the inner wall of the piezoelectric vibrator cavity (1), and the gap is smaller than the diameter of the elastic ball (12).

2. The impact ball type wind piezoelectric power generation device according to claim 1, characterized in that: There are four support columns (6), and first through holes (141) are arranged at four corners of the baffle (14). The four support columns (6) and the first through holes (141) are respectively arranged to penetrate in a one-to-one correspondence.

3. The impact ball type wind piezoelectric power generation device according to claim 1, characterized in that: The plurality of support columns (6) are all provided with cylindrical buckles (7) at equal height positions on their shafts, for supporting the baffle (14).

4. The impact ball type wind piezoelectric power generation device according to claim 3, characterized in that: The cylindrical buckle (7) is slidably arranged on the rod body of the support column (6) along the vertical direction.

5. The impact ball type wind piezoelectric power generation device according to claim 1, characterized in that: The piezoelectric vibrator cavity (1) comprises a plurality of piezoelectric vibrators (11), and the plurality of piezoelectric vibrators (11) are respectively fixed between adjacent support columns (6) and at the top ends of a plurality of support columns (6) to form a cavity structure.

6. The impact ball type wind piezoelectric power generation device according to claim 5, characterized in that: The piezoelectric vibrator (11) comprises a piezoelectric ceramic (111) and a beryllium copper substrate (112) bonded to each other; The beryllium copper substrate (112) is arranged inside the piezoelectric vibrator cavity (1), and the piezoelectric ceramic (111) is arranged outside the piezoelectric vibrator cavity (1).

7. The impact ball type wind piezoelectric power generation device according to claim 1, characterized in that: The number of the plurality of elastic balls (12) is three.

8. A method for generating wind power piezoelectricity by impacting a small ball, characterized in that: An impact ball type wind piezoelectric power generation device according to any one of claims 1 to 7 comprises the following steps: The turbine (30) is rotated by wind force, and the turbine (30) drives the fan blades (13) to rotate through the rotating shaft (2), and the fan blades (13) hit the multiple elastic balls (12) during the rotation process; A plurality of elastic small balls (12) collide with the inner wall of the piezoelectric vibrator cavity (1), causing the inner wall of the piezoelectric vibrator cavity (1) to undergo elastic deformation, and converting mechanical energy into electrical energy during the recovery process of the inner wall of the piezoelectric vibrator cavity (1).

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