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Electric field overhead line wireless energy-obtaining apparatus

A technology of overhead lines and energy harvesting devices, which is applied in the direction of electrical components, etc., can solve problems such as inability to provide stable electric energy for online devices, and achieve the effects of simple structure, stable energy harvesting, and strong anti-interference ability

Active Publication Date: 2015-12-02
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing technology cannot provide stable electric energy for an online device installed in a high-voltage environment for a long time, and provides a wireless energy harvesting device for an electric field overhead line that directly obtains low-voltage energy from an overhead wire

Method used

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  • Electric field overhead line wireless energy-obtaining apparatus
  • Electric field overhead line wireless energy-obtaining apparatus
  • Electric field overhead line wireless energy-obtaining apparatus

Examples

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specific Embodiment approach 1

[0038] Specific implementation mode one: combine figure 1 , figure 2 with image 3 Explain that this is an implementation mode. The electric field overhead line wireless energy harvesting device described in this implementation mode includes a receiving line 5, an insulating sleeve 8, N insulating sheds 2, an insulated wire 4 and a receiver 3;

[0039] The receiving line 5 is rod-shaped, the middle part of the receiving line 5 is linear, the two ends are the same quarter-arc shape and the bending directions of the two ends are the same;

[0040] The receiving line 5 includes an insulating layer 11 and a copper sheet 10, the copper sheet 10 is in the shape of a thin sheet, and the insulating layer 11 is wrapped outside the copper sheet 10;

[0041] The insulating sleeve 8 is a hollow cylinder, and one end of the insulating sleeve 8 is fixed on the receiving line 5;

[0042] The N insulating sheds 2 are umbrella-shaped structures, and the N insulating sheds 2 are fixed on th...

specific Embodiment approach 2

[0046] Specific embodiment 2: This embodiment is to further limit the electric field overhead line wireless energy harvesting device described in specific embodiment 1. In this embodiment, it also includes two equalizing rings 9, and the two equalizing rings 9 are respectively fixed on both sides of the connection between the receiving line 5 and the insulating sleeve 8. The pressure equalizing ring 9 is a hollow ring made of aluminum. The surface of the equalizing ring 9 is smooth and burr-free. Around the line 5, it is ensured that there is no potential difference between the parts near the equalizing ring 9 to achieve the effect of equalizing pressure.

specific Embodiment approach 3

[0047] Specific implementation mode three: combination Figure 4 Describe this embodiment, this embodiment is to further limit the electric field overhead line wireless energy harvesting device described in the first specific embodiment, in this embodiment, the cross section of the copper sheet 10 is "C" shape, the insulating layer 11 and the copper The sheet 10 has a semiconductor layer in the middle.

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Abstract

An electric field overhead line wireless energy-obtaining apparatus relates to a wireless power-obtaining apparatus in the technical field of power transmission, and is aimed at solving the problem of the prior art that steady electric energy cannot be provided to an on-line apparatus in a high-voltage environment for a long period of time. A receiver line includes an insulating layer and a copper sheet. The middle part of the rod-shaped receiver line is straight part, and the two ends of the receiver line are quarter arc ends that are bent in the same manner. An insulating sleeve pipe is shaped like a hollow cylinder. One end of the insulating sleeve pipe is fixed to the receiver line. N umbrella-shaped insulating parts are fixed to the insulating sleeve pipe. An insulating lead is positioned inside the insulating sleeve pipe. One end of the insulating lead is electrically connected to the copper sheet inside the receiver, and the other end of the insulating lead is connected to an electric energy input end of a receiver. The beneficial effects of the invention are that the energy of an alternating electric field excited by high voltages of an overhead conductor is converted into low-voltage electric energy that can be used by low-voltage electric equipment, the apparatus exhibits high anti-interference and has a stable energy-obtaining effect, all components are highly reliable, and the apparatus is suitable for wirelessly obtaining energy from a power transmission line.

Description

technical field [0001] The invention relates to a wireless power-taking device in the technical field of power transmission. Background technique [0002] With the promotion of smart grid technology and condition-based maintenance technology, in addition to traditional power equipment, more information collection, transmission and processing devices will be added to the future power grid. The power equipment status monitoring device installed in a high-voltage environment with strong magnetic field and strong electric field radiation has powerful data detection, data processing and communication functions, but the development of its power supply method is relatively lagging behind. Although many field devices are close to the grid, they cannot directly obtain power from the high-voltage grid due to the limitation of the voltage level. It is difficult to find a suitable power supply entry point or a correct feeding method, which has caused great obstacles to the application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J5/00
Inventor 于春来刘洋朱学成李童孙巍郭蕴
Owner STATE GRID CORP OF CHINA
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