Vibration type piezoelectric power generation device

Abstract

The utility model discloses a vibration type piezoelectric power generation device, which relates to the technical field of piezoelectric power generation, and comprises a box body, an air inlet and an air outlet are respectively arranged at two ends of the box body, the air inlet and the air outlet are conical, an air duct is arranged in the box body, and the air inlet and the air outlet are communicated through the air duct. Noise power generation assemblies are installed at the air inlet and the air outlet in the box body, a rotating shaft is rotationally installed in the air duct, a plurality of fan blades which are annularly distributed are fixedly installed on the rotating shaft, air storage grooves are formed in the two sides of the fan blades, two piezoelectric power generation assemblies which are distributed in an up-down mirror image mode are installed in the box body, and a storage battery is fixedly installed in the box body. By arranging the piezoelectric power generation assembly, wind energy enters the air duct from the air inlet, due to the fact that the inner diameter of the air duct is narrow, the wind speed of the wind energy in the air duct can be increased, the fan blades are blown to rotate rapidly, the fan blades generate power through the piezoelectric power generation assembly, and therefore the wind energy is converted into electric energy.

Description

Technical Field

[0001] The utility model relates to the technical field of piezoelectric power generation, in particular to a vibration type piezoelectric power generation device. Background Art

[0002] Vibration-type piezoelectric power generation devices generally include three energy harvesting technologies: electromagnetic conversion, electrostatic conversion, and piezoelectric conversion. Among them, piezoelectric conversion technology has been widely studied and applied due to its high efficiency and high output voltage. Piezoelectric energy harvesters can be designed as variable spacing or variable area types to adapt to different vibration conditions and improve energy conversion efficiency. They rely on vibration to change the distance or effective area between the capacitor plates to generate electrical energy. These devices can be installed in environments such as vehicles, buildings, and even the human body to collect vibration energy and convert it into electrical energy for powering micro sensors, wireless communication equipment, etc.

[0003] There is a large amount of noise in the public environment, which seriously affects people's daily lives. People try to reduce the harm of noise to people's health through various methods. On the other hand, noise contains huge energy. If the energy of noise in the environment can be utilized and converted into electrical energy, it will be a far-reaching innovation. At the same time, there is a lot of wind energy in environments such as tunnels, but the existing vibration piezoelectric power generation device cannot simultaneously utilize noise sound energy and wind energy to convert into electrical energy, resulting in low energy conversion efficiency. In response to the above problems, the inventors proposed a vibration piezoelectric power generation device to solve the above problems. Utility Model Content

[0004] In order to solve the problem that the existing vibration-type piezoelectric power generation device cannot simultaneously utilize noise sound energy and wind energy to convert into electrical energy, thereby resulting in low energy conversion efficiency; the purpose of the present utility model is to provide a vibration-type piezoelectric power generation device.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a vibration-type piezoelectric power generation device, comprising a box body, with an air inlet and an air outlet respectively provided at both ends of the box body, and the air inlet and the air outlet are both conically arranged, an air duct is provided in the box body, and the air inlet and the air outlet are connected through the air duct, noise power generation components are installed at the air inlet and the air outlet in the box body, a rotating shaft is rotatably installed in the air duct, and a plurality of fan blades distributed in a ring are fixedly installed on the rotating shaft, and air storage grooves are provided on both sides of the plurality of fan blades, two piezoelectric power generation components with upper and lower mirror-image distribution are installed in the box body, a battery is fixedly installed in the box body, a discharge socket is fixedly installed on one side of the box body, and the discharge socket is connected to the battery through a wire, and universal wheels are rotatably installed at the four corners of the bottom end of the box body.

[0006] Preferably, both noise generating components include elastic ropes, and the elastic ropes are fixedly installed at the air inlet and air outlet in the box. The first piezoelectric elements are fixedly installed at the air inlet and air outlet in the box, and the first piezoelectric elements are connected to the battery through a wire. A hitting ball is fixedly installed in the middle of the two elastic ropes, and the hitting ball is located in the corresponding first piezoelectric element.

[0007] Preferably, both piezoelectric generating components include a sliding plate, two cavities with upper and lower mirror distributions are opened in the box, and the sliding plates are slidably installed in the corresponding cavities, and a fixing rod is fixedly installed on the two sliding plates, and one end of the fan blade can contact one end of the corresponding fixing rod.

[0008] Preferably, two symmetrically distributed springs are fixedly installed in both cavities, and one end of the spring is fixedly connected to the corresponding sliding plate, a second piezoelectric element is fixedly installed in both cavities, and the second piezoelectric element is connected to the battery through a wire, a touch rod is fixedly installed on both sliding plates, and one end of the touch rod is in contact with the corresponding second piezoelectric element.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. In the present invention, by providing a noise power generation component, the air inlet and the air outlet can absorb noise, and the noise power generation component is used to convert sound energy into electrical energy, thereby achieving the purpose of converting noise into electrical energy;

[0011] 2. In the present invention, a piezoelectric power generation component is provided to allow wind energy to enter the air duct from the air inlet. Since the inner diameter of the air duct is narrow, the wind speed in the air duct will be accelerated, and the fan blades will be blown to rotate rapidly. The fan blades generate electricity through the piezoelectric power generation component, thereby converting wind energy into electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the overall front structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall back structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the box body of the utility model;

[0016] Figure 4 For this utility model Figure 3 A schematic diagram of the structure at center A;

[0017] Figure 5 This is a schematic diagram of the fan blade structure of the utility model;

[0018] Figure 6 This is a schematic diagram of the cross-sectional structure of the first piezoelectric element of the present invention.

[0019] In the figure: 1. Box body; 11. Air inlet; 12. Air outlet; 13. Air duct; 14. Cavity; 2. Universal wheel; 3. Discharge socket; 4. Noise power generation component; 41. First piezoelectric element; 42. Elastic rope; 43. Hitting ball; 5. Piezoelectric power generation component; 51. Sliding plate; 52. Fixed rod; 53. Touch rod; 54. Spring; 55. Second piezoelectric element; 6. Battery; 7. Rotating shaft; 8. Fan blades; 81. Air storage tank. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] Example: Figure 1-6 As shown, the utility model provides a vibration-type piezoelectric power generation device, including a box body 1, an air inlet 11 and an air outlet 12 are respectively opened at both ends of the box body 1, and the air inlet 11 and the air outlet 12 are both conical, an air duct 13 is opened in the box body 1, and the air inlet 11 and the air outlet 12 are connected through the air duct 13, a noise power generation component 4 is installed at the air inlet 11 and the air outlet 12 in the box body 1, a rotating shaft 7 is rotatably installed in the air duct 13, a plurality of fan blades 8 distributed in an annular manner are fixedly installed on the rotating shaft 7, and air storage grooves 81 are opened on both sides of the plurality of fan blades 8, and two piezoelectric power generation components 5 with upper and lower mirror image distributions are installed in the box body 1, A battery 6 is fixedly installed in the box body 1, and a discharge socket 3 is fixedly installed on one side of the box body 1, and the discharge socket 3 is connected to the battery 6 through a wire. Universal wheels 2 are rotatably installed at the four corners of the bottom end of the box body 1, so that wind energy enters the air duct 13 from the air inlet 11. Since the inner diameter of the air duct 13 is narrow, the wind speed in the air duct 13 will be accelerated, and the fan blades 8 will be blown to rotate quickly. The fan blades 8 generate electricity through the piezoelectric power generation component 5, thereby converting wind energy into electrical energy and storing it in the battery 6. At the same time, the air inlet 11 and the air outlet 12 can absorb noise, and use the noise power generation component 4 to convert sound energy into electrical energy and store it in the battery 6.

[0022] The two noise generating components 4 each include an elastic rope 42 , and the elastic rope 42 is fixedly mounted at the air inlet 11 and the air outlet 12 in the box 1 .

[0023] By adopting the above technical solution, the air inlet 11 and the air outlet 12 can absorb noise, and the noise is amplified at the air inlet 11 and the air outlet 12 and vibrates the elastic rope 42 to swing.

[0024] A first piezoelectric element 41 is fixedly installed at the air inlet 11 and the air outlet 12 in the box body 1, and the first piezoelectric element 41 is connected to the battery 6 through a wire.

[0025] By adopting the above technical solution, the electric energy generated by the first piezoelectric element 41 is stored in the battery 6 through the wire.

[0026] A striking ball 43 is fixedly mounted in the middle of each of the two elastic cords 42 , and the striking ball 43 is located in the corresponding first piezoelectric element 41 .

[0027] By adopting the above technical solution, the elastic rope 42 drives the striking ball 43 to swing and hit the first piezoelectric element 41, thereby generating electrical energy.

[0028] The two piezoelectric power generation components 5 each include a sliding plate 51 . Two cavities 14 , which are mirror-imaged in an upper and lower direction, are defined in the box body 1 , and the sliding plates 51 are slidably installed in the corresponding cavities 14 .

[0029] By adopting the above technical solution, the sliding plate 51 slides in the cavity 14 .

[0030] A fixing rod 52 is fixedly mounted on each of the two sliding plates 51 , and one end of the fan blade 8 can contact one end of the corresponding fixing rod 52 .

[0031] By adopting the above technical solution, the fan blades 8 squeeze the fixing rod 52 back, and the fixing rod 52 squeezes the sliding plate 51.

[0032] Two symmetrically distributed springs 54 are fixedly installed in each of the two cavities 14 , and one end of the spring 54 is fixedly connected to the corresponding sliding plate 51 .

[0033] By adopting the above technical solution, the sliding plate 51 presses the spring 54 and is reset by the rebound force of the spring 54 .

[0034] A second piezoelectric element 55 is fixedly installed in each of the two cavities 14 and is connected to the battery 6 via a wire. A touch rod 53 is fixedly installed on each of the two sliding plates 51 and one end of the touch rod 53 contacts the corresponding second piezoelectric element 55 .

[0035] By adopting the above technical solution, the sliding plate 51 drives the touch rod 53 to touch the second piezoelectric element 55, thereby generating electrical energy, which is stored in the battery 6 through the wire.

[0036] Working Principle: When the utility model is in use, wind energy enters the air duct 13 from the air inlet 11. Due to the narrow inner diameter of the air duct 13, the wind energy in the air duct 13 accelerates and blows the fan blades 8 to rotate rapidly. The rotation of the fan blades 8 squeezes and retracts the fixed rod 52, and the fixed rod 52 squeezes the sliding plate 51 and the spring 54. The sliding plate 51 drives the touch rod 53 to touch the second piezoelectric element 55, thereby generating electrical energy. The electrical energy is stored in the battery 6 through the wire, and the sliding plate 51 is reset by the rebound force of the spring 54.

[0037] At the same time, the air inlet 11 and the air outlet 12 can absorb noise, and the noise is amplified in the air inlet 11 and the air outlet 12, and vibrates the elastic rope 42 to swing. The elastic rope 42 drives the hitting ball 43 to swing and hit the first piezoelectric element 41, thereby generating electrical energy and storing it in the battery 6 through the wire.

[0038] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A vibration-type piezoelectric power generation device, comprising a housing (1), characterized in that: An air inlet (11) and an air outlet (12) are respectively provided at both ends of the box body (1), and the air inlet (11) and the air outlet (12) are both conical. An air duct (13) is provided in the box body (1), and the air inlet (11) and the air outlet (12) are connected through the air duct (13). Noise power generation components (4) are installed at the air inlet (11) and the air outlet (12) in the box body (1). A rotating shaft (7) is rotatably installed in the air duct (13). The rotating shaft (7) ) is fixedly mounted with a plurality of fan blades (8) distributed in an annular manner, and air storage slots (81) are provided on both sides of the plurality of fan blades (8). Two piezoelectric generating components (5) distributed in an upper and lower mirror image manner are installed in the box (1). A battery (6) is fixedly mounted in the box (1). A discharge socket (3) is fixedly mounted on one side of the box (1), and the discharge socket (3) is connected to the battery (6) through a wire. Universal wheels (2) are rotatably mounted at the four corners of the bottom end of the box (1).

2. A vibration-type piezoelectric power generation device according to claim 1, characterized in that: The two noise power generation components (4) each include an elastic rope (42), and the elastic rope (42) is fixedly mounted at the air inlet (11) and the air outlet (12) in the box (1).

3. The vibration-type piezoelectric power generating device according to claim 1, wherein: A first piezoelectric element (41) is fixedly installed at the air inlet (11) and the air outlet (12) in the box (1), and the first piezoelectric element (41) is connected to the battery (6) via a wire.

4. A vibration-type piezoelectric power generation device according to claim 2, characterized in that: A striking ball (43) is fixedly mounted in the middle of each of the two elastic ropes (42), and the striking ball (43) is located in the corresponding first piezoelectric element (41).

5. The vibration-type piezoelectric power generating device according to claim 1, wherein: The two piezoelectric power generation components (5) each include a sliding plate (51), two cavities (14) with mirror-image distribution are provided in the box (1), and the sliding plate (51) is slidably installed in the corresponding cavity (14).

6. The vibration-type piezoelectric power generating device according to claim 5, characterized in that: A fixing rod (52) is fixedly mounted on each of the two sliding plates (51), and one end of the fan blade (8) can contact one end of the corresponding fixing rod (52).

7. The vibration-type piezoelectric power generating device according to claim 5, wherein: Two symmetrically distributed springs (54) are fixedly installed in the two cavities (14), and one end of the spring (54) is fixedly connected to the corresponding sliding plate (51).

8. The vibration-type piezoelectric power generating device according to claim 5, wherein: A second piezoelectric element (55) is fixedly installed in each of the two cavities (14), and the second piezoelectric element (55) is connected to the battery (6) via a wire. A touch rod (53) is fixedly installed on each of the two sliding plates (51), and one end of the touch rod (53) contacts the corresponding second piezoelectric element (55).

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