Ubiquitous energy fusion and harvesting system
The present disclosure provides a ubiquitous energy fusion and harvesting system, formed into a hexahedron by splicing light-heat-radio frequency (RF) fusion energy-harvesting devices, light-heat-kinetic-RF fusion energy-harvesting devices, and a heat-dissipating circuit board. The system can adapt to multi-directional and all-time solar energy harvesting, and multi-band and omnidirectional RF energy harvesting, avoiding insufficient output of electric energy in a harsh environment of single energy harvesting. In the present disclosure, a solar cell sheet serves to provide a heat source for a temperature difference power generation sheet, and a piezoelectric power generation array serves as a cooling fin to cool the temperature difference power generation sheet, realizing a multi-source ubiquitous energy composite harvesting and conversion with mechanism fusion and spatial mutual benefit.
1 . An energy-harvesting system, comprising light-heat-radio frequency (RF) energy-harvesting devices, light-heat-kinetic-RF energy-harvesting devices, and a circuit board, a total of six pieces of the light-heat-RF energy-harvesting devices, the light-heat-kinetic-RF energy-harvesting devices and a heat-dissipating circuit board being spliced to form a hexahedral structure, wherein
the light-heat-RF energy-harvesting devices serve to realize photovoltaic power generation, temperature difference power generation, and RF energy power generation,
the light-heat-kinetic-RF energy-harvesting devices serve to realize photovoltaic power generation, temperature difference power generation, RF energy power generation, and kinetic energy power generation, and
the circuit board serves to deploy energy storage elements and electric energy management circuits, and manage and store electric energy generated by the light-heat-RF energy-harvesting devices and the light-heat-kinetic-RF energy-harvesting devices.
2 . The energy-harvesting system according to claim 1 , wherein in the hexahedral structure, the number of the light-heat-kinetic-RF energy-harvesting devices is 1 or 2 , the number of the circuit board is 1 , and the rest are the light-heat-RF energy-harvesting devices.
3 . The energy-harvesting system according to claim 1 , wherein the light-heat-RF energy-harvesting device is formed by sequentially and tightly attaching a solar cell sheet, a hot-end heat-conducting layer, an RF antenna, a temperature difference power generation sheet, a cold-end heat-conducting layer, and a cooling sheet.
4 . The energy-harvesting system according to claim 2 , wherein the light-heat-RF energy-harvesting device is formed by sequentially and tightly attaching a solar cell sheet, a hot-end heat-conducting layer, an RF antenna, a temperature difference power generation sheet, a cold-end heat-conducting layer, and a cooling sheet.
5 . The energy-harvesting system according to claim 3 , wherein an expansion area is arranged around the temperature difference power generation sheet, and the RF antenna is arranged on the expansion area.
6 . The energy-harvesting system according to claim 1 , wherein the light-heat-kinetic-RF energy-harvesting device is formed by sequentially and tightly attaching a solar cell sheet, a hot-end heat-conducting layer, an RF antenna, a temperature difference power generation sheet, a cold-end heat-conducting layer, and piezoelectric array cooling sheets; each of the piezoelectric array cooling sheets comprises an aluminum substrate base, a transverse piezoelectric fin array and a vertical piezoelectric fin array; and the transverse piezoelectric fin array and the vertical piezoelectric fin array are deployed on one side of the aluminum substrate base in a checkerboard pattern.
7 . The energy-harvesting system according to claim 2 , wherein the light-heat-kinetic-RF energy-harvesting device is formed by sequentially and tightly attaching a solar cell sheet, a hot-end heat-conducting layer, an RF antenna, a temperature difference power generation sheet, a cold-end heat-conducting layer, and piezoelectric array cooling sheets; each of the piezoelectric array cooling sheets comprises an aluminum substrate base, a transverse piezoelectric fin array and a vertical piezoelectric fin array; and the transverse piezoelectric fin array and the vertical piezoelectric fin array are deployed on one side of the aluminum substrate base in a checkerboard pattern.
8 . The energy-harvesting system according to claim 5 , wherein a piezoelectric fin comprises a piezoelectric sheet and a mass block; and the piezoelectric sheet is encapsulated or coated with an insulating and heat-conducting material, with a bottom of the piezoelectric sheet being fixedly connected to the aluminum substrate base, and a head thereof being loaded with the mass block.
9 . The energy-harvesting system according to claim 1 , wherein a plurality of cooling fins are tightly bonded to a back face of the heat-dissipating circuit board via a heat-conducting layer, and the heat-dissipating circuit board serves to deploy the energy storage elements and the electric energy management circuits.
10 . The energy-harvesting system according to claim 2 , wherein a plurality of cooling fins are tightly bonded to a back face of the heat-dissipating circuit board via the heat-conducting layer, and the heat-dissipating circuit board serves to deploy the energy storage elements and the electric energy management circuits.
11 . The energy-harvesting system according to claim 7 , wherein the heat-dissipating circuit board is in a hollow-carved design.
12 . The energy-harvesting system according to claim 7 , wherein each of the energy storage elements is a flexible super-capacitor, an ordinary super-capacitor, a lithium battery or a storage battery, for storing electric energy harvested by the energy-harvesting system.
13 . The energy-harvesting system according to claim 3 , wherein an aluminum substrate is used as a base for a hot end of the temperature difference power generation sheet.
14 . The energy-harvesting system according to claim 4 , wherein an aluminum substrate is used as a base for a hot end of the temperature difference power generation sheet.
15 . The energy-harvesting system according to claim 6 , wherein an aluminum substrate is used as a base for a hot end of the temperature difference power generation sheet.
16 . The energy-harvesting system according to claim 7 , wherein an aluminum substrate is used as a base for a hot end of the temperature difference power generation sheet.
17 . The energy-harvesting system according to claim 3 , wherein the RF antenna is designed with a multi-layer printed circuit board (PCB) to provide a continuous and uniform ground plane below the RF antenna, with an impedance matching network arranged at a bottom layer; and the RF antenna is-typically designed as a patch antenna in a shape of a combination of Koch curves and geometrical curves, or as a micro-strip antenna, depending on the frequency of RF signals in the environment.
18 . The energy-harvesting system according to claim 4 , wherein the RF antenna is designed with a multi-layer printed circuit board (PCB) to provide a continuous and uniform ground plane below the RF antenna, with an impedance matching network arranged at a bottom layer; and the RF antenna is typically designed as a patch antenna in a shape of a combination of Koch curves and geometrical curves, or as a micro-strip antenna, depending on the frequency of RF signals in the environment.
19 . The energy-harvesting system according to claim 6 , wherein the RF antenna is designed with a multi-layer printed circuit board (PCB) to provide a continuous and uniform ground plane below the RF antenna, with an impedance matching network arranged at a bottom layer; and the RF antenna is designed as a patch antenna in a shape of a combination of Koch curves and geometrical curves, or as a micro-strip antenna, depending on the frequency of RF signals in the environment.
20 . The energy-harvesting system according to claim 7 , wherein the RF antenna is designed with a multi-layer printed circuit board (PCB) to provide a continuous and uniform ground plane below the RE antenna, with an impedance matching network arranged at a bottom layer; and the RF antenna is designed as a patch antenna in a shape of a combination of Koch curves and geometrical curves, or as a micro-strip antenna, depending on the frequency of RF signals in the environment.