CN-115549513-B - Ellipsoidal multilayer-structure wave energy friction nano generator

CN115549513BCN 115549513 BCN115549513 BCN 115549513BCN-115549513-B

Abstract

The invention provides an ellipsoidal multilayer-structure wave energy friction nano generator, wherein the shape of a shell is ellipsoidal and is divided into an inner layer, a middle layer and an outer layer for generating power. Each layer of power generation unit generates power independently to adapt to the unused sea conditions. The outer layer structure generates power through rolling with the bulge shell and the film electrode, the middle layer structure generates power through contacting and separating the outer side of the arc-shaped polar plate and the inner wall of the middle layer shell, and the inner layer structure generates power through rolling with the small balls. The structure is used for completing the export of electric energy through the design of the triangular shaft and the electrode, and the condition that the inner layer power generation unit is blocked is avoided through the design of the buffer spring. The three-layer power generation structure has different weights, the inner layer and the outer layer are light in weight, and the middle layer is heavy in weight, and under the action of wave excitation, the inertia of each part is different, so that the relative motion occurs to generate power.

Inventors

ZHANG LAN
ZHANG HANWEN
WANG ZHIPEI
Chao Pingan
LIU MING
HAI RIHAN

Assignees

哈尔滨工程大学

Dates

Publication Date: 20260508
Application Date: 20220902

Claims (7)

1. A ellipsoidal multilayer structure sea wave energy friction nano generator is characterized by comprising an inner layer small ball upper half (9), an inner layer small ball lower half (10), an inner layer excitation small ball (11), an inner layer connection triangular shaft (8) and a buffer spring (7), wherein the inner layer small ball lower half (10) and the inner layer small ball upper half (9) are positioned and installed through a dovetail groove structure, triangular holes reserved on the inner layer small ball lower half (10) and the inner layer small ball upper half (9) are in clearance fit with the inner layer connection triangular shaft (8), the inner layer excitation small ball (11) is placed in the inner layer power generation structure to roll and generate power, the buffer spring (7) is sleeved on the inner layer connection triangular shaft (8), the middle layer power generation structure comprises a middle layer protrusion-carrying shell (4), an arc-shaped electrode plate (6), a connecting pin shaft (5), a fixing screw (12) and a fixing nut (3), holes matched with the connecting pin shaft (5), the fixing nut (3) and the inner layer connection triangular shaft (8) are reserved on the middle layer protrusion-carrying shell (4), the whole shell is integrally formed through the pin hole positioning and the fixing pin hole, the fixing hole is formed through the fixing pin hole, the inner layer-carrying out film (2) and the corresponding to the inner layer structure, the outer layer structure is connected with the outer layer shell (1), the whole appearance of the shell (1) with the inner protrusions is in an equal-ratio enlarged shape after the middle bulge is removed from the middle layer power generation structure, the shells with the inner protrusions are connected and fixed through fixing screws and fixing nuts, and the membrane electrode (2) is arranged on the inner protrusions.
2. The ellipsoidal multi-layer structure wave energy friction nano generator of claim 1, wherein the three layers of power generation structures are different in weight, the inner layer and the outer layer are light in weight, the middle layer is heavy in weight, and under the action of wave excitation, the relative motion occurs due to different inertia of all parts so as to generate power.
3. The ellipsoidal wave energy friction nano generator with the multilayer structure according to claim 1 is characterized in that the buffer spring (7) plays roles in limiting and centering the whole small ball formed by installing the lower half and the upper half of the inner small ball, and the surface of the spring is subjected to insulation treatment.
4. The ellipsoidal wave energy friction nano generator with the multilayer structure is characterized in that the inner layer structure is formed by the inner layer of a whole small ball formed by installing the lower half and the upper half of the small ball, electrodes are stuck alternately, electrodes with the same poles are respectively communicated with two ends of the whole small ball, the connected electrode leads are respectively contacted with electrodes on an inner middle layer connecting triangular shaft (8), the electrodes are arranged at intervals of two poles in the small ball formed by the lower half and the upper half of the small ball of the inner layer and the inner middle layer connecting triangular shaft (8) and are mutually communicated with each other, and no matter how the small ball rotates to any angle along an axis, the inner electrodes of the small ball are ensured to be simultaneously contacted with the inner middle layer connecting triangular shaft by the positive and negative poles.
5. The ellipsoidal wave energy friction nano generator with the multilayer structure is characterized in that the thin film electrode (2) is of a flexible structure, is deformed by bulge extrusion of a middle layer with a protruding shell (4), and is in contact separation with the inner wall of the shell (1) with the inner protrusion to generate electricity, and the electrode arrangement on the thin film electrode (2) is divided into multiple electrode arrangements.
6. The ellipsoidal wave energy friction nano generator with the multilayer structure according to claim 1 is characterized in that each part of the protrusion of the shell (4) with the protrusion at the middle layer is the same, and the protrusion is an arc bulge in the middle.
7. The ellipsoidal multi-layer structure wave energy friction nano generator of claim 1 is characterized in that under the action of waves, the arc electrode plates (6) are extruded by integral pellets formed by the lower half and the upper half of inner pellets, and the arc electrode plates (6) are simultaneously contacted with the inner wall of the shell (4) with the protrusions for separation and power generation.

Description

Ellipsoidal multilayer-structure wave energy friction nano generator Technical Field The invention relates to the technical field of ocean energy power generation, in particular to an ellipsoidal multilayer-structure ocean wave energy friction nano power generator. Background With the continuous reduction of non-renewable energy sources such as fossil fuels and the importance of environmental protection, people hope to achieve the purposes of relieving energy crisis and protecting the environment through the popularization and use of clean renewable energy sources such as wind energy, solar energy, ocean energy and the like. The ocean energy has been widely concerned and developed due to the advantages of abundant reserves, wide distribution and the like. Current ocean energy harvesting is mostly performed by large wave energy power generation devices to harvest the mechanical energy generated by large waves, while the mechanical energy generated at low frequency small waves is rarely harvested. Friction nano generators (TENG) are a class of devices that convert mechanical energy in the environment to electrical energy by friction electrification and electrostatic induction principles, with the advantages of high power density, high efficiency, low weight and low manufacturing cost. There are unique advantages to harvesting irregular, low frequency, dispersed mechanical energy in the environment, which provide convenience in harvesting ocean energy from low frequency waves. Due to the characteristics of random ocean energy directions, low frequency and the like, the friction nano generator for collecting ocean energy needs to collect ocean energy in multiple directions and multiple sea conditions. Disclosure of Invention The invention aims to provide the wave energy friction nano power generation device which can collect wave energy from all directions and has high power generation efficiency and is suitable for different wave conditions. The invention aims to achieve the purposes of the inner-layer power generation structure, which comprises an inner-layer small ball upper half 9, an inner-layer small ball lower half 10, an inner-layer excitation small ball 11, an inner-layer connecting triangular shaft 8 and a limiting spring 7, wherein the inner-layer small ball lower half 10 and the inner-layer small ball upper half 9 are positioned and installed through a dovetail groove structure, triangular holes reserved on the inner-layer small ball lower half 10 and the inner-layer connecting triangular shaft 8 are in clearance fit, the inner-layer excitation small ball 11 is placed in the inner-layer power generation structure to roll and generate power, the buffer spring 7 is sleeved on the inner-layer connecting triangular shaft 8, the middle-layer power generation structure comprises a shell with protrusions 4, an arc-shaped electrode plate 6, a connecting pin shaft 5, a fixing screw 12 and a fixing nut 3, holes matched with the connecting pin shaft 5, the fixing nut 3 and the inner-layer connecting triangular shaft 8 are reserved on the inner-layer power generation structure, the outer-layer power generation structure comprises a shell with protrusions 1 and a film electrode with protrusions 2, the outer shape of the film is enlarged, and the shape of each protrusion is fixed on the inner-layer power generation structure through the inner-layer power generation structure, and the inner-layer power generation structure is fixed by the inner-layer power generation structure. The invention also includes such structural features: 1. The weight of the inner layer, the middle layer and the outer layer are different, the weight of the inner layer and the outer layer is light, and the middle layer is heavy, and under the action of wave excitation, the relative motion occurs due to the inertia difference of all parts, so that the power generation is performed. 2. The buffer spring 7 plays roles of limiting and centering the whole ball formed by the lower half and the upper half of the inner ball, and the surface of the spring is subjected to insulation treatment. 3. The inner layer structure is formed by mounting the lower half and the upper half of the inner layer small ball into a whole small ball, electrodes are stuck alternately, electrodes with two poles communicated with the same pole are respectively stuck alternately, the connected electrode leads are respectively contacted with electrodes on the inner middle layer connecting triangular shaft 8, the electrodes are arranged alternately at two poles and communicated with each other on the inner middle layer connecting triangular shaft 8 in the small ball formed by the lower half and the upper half of the inner layer small ball, no matter how much the small ball rotates along the axis, and the inner electrodes of the small ball are ensured to be simultaneously contacted with the inner middle layer connecting triangular shaft by the positive and negative poles. 4.