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Single-line electric energy transmission-based wireless power supply device

A technology of electric energy transmission and wireless power supply, which is applied in the direction of battery circuit devices, circuit devices, electrical components, etc., and can solve problems such as high production costs, limited distance transmission efficiency between energy sending coils and energy receiving coils, and bulky transmitting and receiving devices , to achieve the effect of cost saving

Inactive Publication Date: 2017-10-03
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology allows for more flexibility when supplying electrical current from one device into another without having multiple wires needed or requiring expensive equipment like an AC adapter.

Problems solved by technology

This patents discuss various technical solutions related to improving the performance of wireless charging systems such as reducing their overall dimensions while still being able to transmit enough amount of power without having them get stuck due to long distances from an external source like sunlight. Additionally, considering the issue with current designs involving multiple wire circuits, we focus on developing a new solution called Single-Wire Power Transmission Platform (SWPT).

Method used

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  • Single-line electric energy transmission-based wireless power supply device
  • Single-line electric energy transmission-based wireless power supply device
  • Single-line electric energy transmission-based wireless power supply device

Examples

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Embodiment 1

[0042] Take the receiving end wound by enameled wire with a diameter of 0.71mm as an example. The receiving end is tightly wound on an insulating hollow cylinder with a diameter of 7 cm and a height of 24 cm, and the number of turns is 280. eventually formed as image 3 Tesla coil shown. After the coil is formed, the parasitic inductance value of the receiving end is calculated as L=1.27mH and the parasitic capacitance value is C=4.045pF through the calculation formula of parasitic inductance and parasitic capacitance. From the resonant frequency calculation formula, the resonant frequency of the receiving end can be calculated as 2.22MHz.

[0043]The energy sending end includes a signal source and a power amplification module. The signal source is a function signal generator (Tektronix AFG3053C) with a maximum output frequency of 80MHz and a maximum output voltage peak value of 10V. The power amplification module is a power amplifier with a maximum output power of 20W and...

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Abstract

The invention discloses a single-line electric energy transmission-based wireless power supply device. The wireless power supply device comprises an AC power source, a planar conductor, a single wire and a Tesla coil, wherein a positive electrode of the AC power source is connected with the planar conductor through the single wire to form a wireless charging platform, the vertical distance between a bottom end of the Tesla coil and the planar conductor is smaller than or equal to 5 centimeters, the horizontal distance between the bottom end of the Tesla coil and an edge of the planar conductor is smaller than or equal to 5 centimeters, a load is connected with the top of the Tesla coil, the turns of the Tesla coil connected with the load accounts for one fifth of the total turns of the Tesla coil, and the frequency of the AC power source is equal to the resonant frequency of the Tesla coil. Single-line electric energy transmission and a wireless power supply platform are combined, and the wireless power supply platform with relatively large freedom degree is achieved; and due to the characteristic that energy receiving can be achieved by a single-line power supply mode of an emission end and only by requiring the single Tesla coil, the system cost is greatly reduced.

Description

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Claims

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Application Information

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Owner HANGZHOU DIANZI UNIV
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