CN-122014505-A - Wind and rain dual-energy piezoelectric power generation device

CN122014505ACN 122014505 ACN122014505 ACN 122014505ACN-122014505-A

Abstract

The invention discloses a wind and rain dual-energy piezoelectric power generation device which comprises a stand column, a wind power transmission device, a piezoelectric power generation module and an energy management system, wherein the stand column is vertically arranged, the wind power transmission device, the piezoelectric power generation module and the energy management system are all arranged on the stand column, the piezoelectric power generation module is horizontally arranged, the wind power transmission device impacts the piezoelectric power generation module with kinetic energy generated by wind energy rotation in all directions, the piezoelectric power generation module is impacted by rainfall, and the piezoelectric power generation module transmits generated current to the energy management system for storage. The wind power generation device is scientific in principle, reasonable in design and compact in structure, eight groups of wind power transmission devices are distributed around the upright posts along different directions, wind power in all directions is comprehensively captured, the elastic impact hammer is driven by the transmission assembly to directionally impact the piezoelectric collecting module, piezoelectric ceramic plates are arranged on the front side and the back side of the piezoelectric collecting module, wind power impact is responded, and current can be generated by impacting the piezoelectric ceramic plates through rainfall and raindrops, so that wind and rain double-energy collaborative capturing is realized.

Inventors

ZHENG YUANXUN
BAI TAO
XIA YANYAN
WANG XINXIN
Ban Zijun
HU HUANZHANG
TAO XIANGHUA
DU CHAOWEI
GUAN YUJIAN
ZHANG PENG
LI GUANGHUI
TAN JUNKUN
TONG HUI

Assignees

郑州大学
河南交通投资集团有限公司濮鲁项目部

Dates

Publication Date: 20260512
Application Date: 20260311

Claims (6)

1. The wind and rain dual-energy piezoelectric power generation device is characterized by comprising a stand column (34), a wind power transmission device (13), a piezoelectric power generation module (25) and an energy management system (44), wherein the stand column (34) is vertically arranged, the wind power transmission device (13), the piezoelectric power generation module (25) and the energy management system (44) are all arranged on the stand column (34), the piezoelectric power generation module (25) is horizontally arranged, the wind power transmission device (13) impacts the piezoelectric power generation module (25) by wind energy rotating in all directions, rainfall impacts electric energy generated by the piezoelectric power generation module (25), and the piezoelectric power generation module (25) transmits generated current to the energy management system (44) for storage.
2. The wind and rain dual-energy piezoelectric power generation device according to claim 1, wherein the piezoelectric power generation module (25) is of a disc-shaped structure, the piezoelectric power generation module (25) is concentrically and fixedly arranged on the upright post (34), the top surface of the piezoelectric power generation module (25) is covered with a whole piezoelectric ceramic plate (35), four piezoelectric ceramic plates (35) which are arranged in a circumferential array are fixedly arranged on the bottom surface of the piezoelectric power generation module (25), the included angle between circle centers of two adjacent piezoelectric ceramic plates (35) on the bottom surface is 90 degrees, each piezoelectric ceramic plate (35) comprises a ceramic plate (36), an ABS packaging shell (37) is arranged outside the ceramic plate (36), and an electric wire interface (18) is arranged on the ABS packaging shell (37).
3. The wind and rain dual-energy piezoelectric power generation device according to claim 2, wherein each piezoelectric ceramic plate (35) comprises a plurality of ceramic plates (36) which are connected in series, the ceramic plates (36) are of a PZT-5H type, the protection grade of an ABS packaging shell (37) is IP68, the top of the ABS packaging shell (37) of the whole piezoelectric ceramic plate (35) on the top surface adopts an elastic panel with the thickness of 3mm, the bottom of the ABS packaging shell (37) of the four piezoelectric ceramic plates (35) on the bottom surface adopts an elastic panel with the thickness of 3mm, thereby ensuring the effective transmission of wind impact force and generating deformation power in response to rain impact, and each piezoelectric power generation module (25) supplies power to an energy management system (44) through an electric wire interface (18) and a charging cable (55).
4. The wind-rain dual-energy piezoelectric power generation device according to claim 3, wherein eight wind power transmission devices (13) are arranged, four wind power transmission devices (13) are arranged above the piezoelectric power generation module (25), the other four wind power transmission devices (13) are arranged below the piezoelectric power generation module (25), the four wind power transmission devices (13) at the lower part are in one-to-one correspondence with four piezoelectric ceramic plates (35) at the bottom surface of the piezoelectric power generation module (25), and the included angle between the center of each wind power transmission device (13) above the piezoelectric power generation module (25) and the center of each two wind power transmission devices (13) adjacent below is 45 degrees; Each wind power transmission device (13) above the eight wind power generation modules (25) has the same structure, each wind power transmission device (13) comprises a fixed frame (33) fixedly connected to a stand column (34), a cantilever rotating shaft (30) perpendicular to the stand column (34) is rotatably connected to the fixed frame (33), a rotary table (28) and fan blades (29) are fixedly arranged on the cantilever rotating shaft (30), the rotary table (28) is positioned between the fixed frame (33) and the fan blades (29), a driving column (32) is fixedly arranged on the rotary table (28) at an eccentric position on the side surface close to the fixed frame (33), two guide sleeves (27) corresponding to each other are arranged on the fixed frame (33), the upper guide sleeve (27) is higher than the highest point of the rotary table (28), the lower guide sleeve (27) is lower than the lowest point of the rotary table (28), a striking rod (31) parallel to the stand column (34) is slidably arranged on the two guide sleeves (27), a flat plate (45) is fixedly arranged at the lower end of the striking rod (31), a plurality of elastic ceramic plates (26) for striking hammers (35) are fixedly arranged on the bottom surfaces of the flat plate (45), a plurality of elastic driving rods (46) are arranged in the horizontal driving rods (46), a horizontal driving cross rod (47) is arranged in the horizontal driving cross rod (47) and a horizontal cross rod (47) is arranged in the horizontal driving cross rod (47), the driving column (32) is provided with bearing rollers which are in rolling connection with the upper side wall and the lower side wall of the transverse driving hole (47).
5. The wind and rain dual-energy piezoelectric power generation device according to claim 4, wherein the energy management system (44) comprises a waterproof box (48) arranged on the upright post (34), an energy switch (49), a lithium battery (50), a super capacitor (51), an intelligent charge and discharge controller (52), a main control unit chip (53) and a communication component are arranged in the waterproof box (48), a box door (54) is arranged on the front side of the waterproof box (48), a threading hole is formed in the bottom of the waterproof box (48), the piezoelectric power generation module (25) is connected with an MPPT module port in the intelligent charge and discharge controller (52) through a pass through charging cable (55), a DC-DC voltage reduction module in the intelligent charge and discharge controller (52) is connected with the super capacitor (51) and the lithium battery (50) respectively, a load output module of the intelligent charge and discharge controller is connected with a load through a power supply cable, and the lithium battery (50) is a 12V/50-100Ah lithium iron phosphate battery pack which is responsible for long-term stable energy storage.
6. The wind and rain dual-energy piezoelectric power generation device is characterized in that a built-in piezoelectric energy regulation algorithm of an intelligent charge and discharge controller is intelligently matched with wind and rain dual-energy output characteristics of a piezoelectric power generation module (25), the intelligent charge and discharge controller (42) integrates a multi-channel rectification module and a DC-DC voltage reduction module to output stable 12V direct current, a super capacitor (51) is connected with a lithium battery (50) in parallel, redundant electric energy is transferred to the lithium battery (50) for storage after the super capacitor (51) is full of electricity, the two are cooperatively powered when the load power exceeds the real-time power generation capacity, an energy management system has multiple protection functions of overcharge, overdischarge, short circuit, lightning strike and reverse connection prevention, a waterproof box (48) is in protection grade of IP65, and the waterproof box is adapted to outdoor extreme environments of a side slope.

Description

Wind and rain dual-energy piezoelectric power generation device Technical Field The invention belongs to the technical field of new energy utilization, and particularly relates to a wind and rain dual-energy piezoelectric power generation device suitable for windy and/or rainy areas. Background The global 'carbon peak, carbon neutralization' is driven by the goal, and the efficient utilization of clean renewable energy becomes a research hotspot. The piezoelectric ceramic has the advantages of compact structure and high power-electricity conversion efficiency, is applied to small renewable energy power generation, and provides technical support for the dispersion utilization of the wind energy and the rainfall energy. At present, wind energy and rainfall energy drive piezoelectric ceramics to generate electricity are all studied, but limitations exist respectively. The wind energy driving type piezoelectric ceramic has the advantages that the wind energy driving type piezoelectric ceramic mainly adopts energy harvesting structures such as vortex-induced vibration and the like, is suitable for small scenes, but has strong wind energy intermittence, cannot stably generate electricity at low wind speed, has narrow energy harvesting frequency band and low conversion efficiency, has limited performance, has high-end material cost and is difficult to apply in large scale. The rainfall driving type mainly generates power through the raindrop impact or friction-piezoelectric synergistic effect, and can realize higher conversion efficiency, but the single raindrop has small kinetic energy, low power generation and large influence of rainfall conditions, and the device is idle when no rainfall exists, has limited adaptation scene, and is difficult to independently meet the distributed power supply requirement. The existing composite power generation system does not relate to the combination of wind energy and rainfall energy, a small number of spliced schemes do not realize the cooperation of the structure and the kinetic energy, the problems of complex structure, unstable stress of a piezoelectric plate and the like exist, the intermittent performance of single energy power generation can not be solved, the device utilization rate is low, and the small and medium-sized distributed power supply scene is difficult to adapt. In addition, the existing device does not consider the combination suitability, the wind energy and the rainfall structure are mutually interfered, the conversion efficiency is reduced, the performance bottleneck of the piezoelectric ceramic is not broken, the energy conversion efficiency and the cost are difficult to consider, and the popularization of the technology is limited. In summary, the current wind energy and rainfall energy driven piezoelectric ceramic power generation technology has limitations, and the existing composite scheme cannot realize high-efficiency cooperative utilization of the wind energy and the rainfall energy, and lacks an integrated device with compact structure, high conversion efficiency and strong adaptability. Therefore, developing such devices, breaking the bottleneck of the prior art, is a challenge to be solved in the art, and is an initial object of the present invention. Disclosure of Invention Aiming at the defects of the prior art, the invention provides the wind and rain dual-energy piezoelectric power generation device which has the advantages of compact structure, high power generation efficiency and strong adaptability. In order to solve the technical problems, the wind and rain dual-energy piezoelectric power generation device comprises a stand column 34, a wind power transmission device 13, a piezoelectric power generation module 25 and an energy management system 44, wherein the stand column 34 is vertically arranged, the wind power transmission device 13, the piezoelectric power generation module 25 and the energy management system 44 are all arranged on the stand column 34, the piezoelectric power generation module 25 is horizontally arranged, the wind power transmission device 13 impacts the piezoelectric power generation module 25 by kinetic energy generated by wind energy rotation in all directions, electric energy generated by impact of rainfall on the piezoelectric power generation module 25 is transmitted to the energy management system 44 by the piezoelectric power generation module 25, and generated current is stored. Further, the piezoelectric power generation module 25 is of a disc-shaped structure, the piezoelectric power generation module 25 is concentrically and fixedly arranged on the upright post 34, the top surface of the piezoelectric power generation module 25 is fully paved with a whole piezoelectric ceramic plate 35, four piezoelectric ceramic plates 35 which are in a sector shape and are arranged in a circumferential array are fixedly arranged on the bottom surface of the piezoelectric power generation module 25, the included ang