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Single-transmitting and multi-receiving wireless charging device

A wireless charging, single-transmit-multiple-receive technology, applied in circuit devices, battery circuit devices, current collectors, etc., can solve the problems of low transmission efficiency and transmission power, large leakage inductance, poor anti-offset ability, etc. Offset ability, the effect of increasing the area

Pending Publication Date: 2020-11-27
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional inductively coupled wireless charging device is based on the principle of electromagnetic induction and uses a loosely coupled transformer to realize wireless transmission of electric energy. The air gap between the transmitting coil and the receiving coil of the loosely coupled transformer is much larger than that of a conventional transformer, and the leakage inductance is large and the transmission efficiency is high. Compared with the transmission power, the anti-offset ability is also relatively poor; and the traditional inductive coupling device can only realize one-to-one charging for a single load

Method used

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  • Single-transmitting and multi-receiving wireless charging device
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  • Single-transmitting and multi-receiving wireless charging device

Examples

Experimental program
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Effect test

Embodiment 1

[0035] refer to figure 1 , provides a schematic diagram of the overall structure of a wireless charging device for single-shot and multiple-charge, as shown in figure 1 , a single-send multi-receipt wireless charging device includes a transmitting unit 100, including a source 101, an inverter 102 and a single-send 103, and the supply 101 establishes a connection with the single-send 103 through the inverter 102; and, receiving Unit 200, cooperates with single hair piece 103.

[0036] Specifically, the main structure of the present invention includes a transmitting unit 100 and a receiving unit 200. Through the mutual cooperation between the set transmitting unit 100 and the receiving unit 200, the one-to-many wireless charging of multiple loads is realized by means of magnetic induction coupling, and The single-transmitter is made up of up-and-down symmetrical coils in series, which expands the transmitting area and improves the anti-offset capability. Among them, the transmi...

Embodiment 2

[0042] refer to figure 2, this embodiment is different from the first embodiment in that: the receiving unit 200 includes a receiving coil 201, a load 202, a receiving compensation capacitor 203 and a receiving resistor 204, and the receiving coil 201, the load 202, the receiving compensation capacitor 203 and the receiving The resistors 204 cooperate with each other to realize stable receiving and charging. Specifically, the receiving unit 200 includes a receiving coil 201 and a load 202, and the receiving coil 201 is connected to the load 202; wherein, there are at least two receiving coils 201 and the load 202, and the two receiving coils 201 are respectively connected to the two loads 202 correspondingly , it needs to be explained that the load is a light bulb or a storage battery.

[0043] Further, the receiving unit 200 further includes a receiving compensation capacitor 203 and a receiving resistor 204 , wherein the receiving compensation capacitor 203 , the receiving...

Embodiment 3

[0046] The technical effects adopted in this device method are verified and explained, and the test results are compared by means of scientific demonstration to verify the real effect of this device.

[0047] Traditional technical solutions: There is a problem of poor anti-offset ability. In order to verify that this method has better anti-offset ability than traditional methods, it can also achieve high stability of single-shot and multi-receipt.

[0048] In this embodiment, the traditional single-send, single-receive A and single-send, multi-receive B (single-send, multi-receive, single-send, multi-receive, B (single-sent, multi-receive, rectangular spiral coil, inverter, full-bridge inverter) and the device, respectively, are used for real-time measurement of resistance The offset capability is good, and at the same time, it can achieve a high contrast of single-shot and multi-receive stable performance.

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PUM

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Abstract

The invention discloses a single-transmitting and multi-receiving wireless charging device. The device comprises: a transmitting unit, wherein the transmitting unit comprises a source supply part inverter and a single-transmitting part, and the source supply part is connected with the single-transmitting part through the inverter; and a receiving unit matched with the single-transmitting part. Thesingle-transmitting part comprises a first coil assembly and a second coil assembly, and one end of the first coil assembly is connected with one end of the second coil assembly in series; and the other end of the first coil assembly and the other end of the second coil assembly are connected with the inverter. According to the invention, the transmitting unit and the receiving unit cooperate with each other, one-to-many wireless charging of a plurality of loads is realized by using a magnetic induction coupling mode, and the single-transmitting part is formed by connecting coils which are symmetrical up and down in series, so that the area of an effective alternating magnetic field is increased, and the anti-offset capability is improved.

Description

technical field [0001] The technical field of wireless power transmission that the present invention relates to, in particular, relates to a single-send-multiple-receive wireless charging device. Background technique [0002] The traditional inductively coupled wireless charging device is based on the principle of electromagnetic induction and uses a loosely coupled transformer to realize wireless transmission of electric energy. The air gap between the transmitting coil and the receiving coil of the loosely coupled transformer is much larger than that of a conventional transformer, and the leakage inductance is large and the transmission efficiency is high. The transmission power is relatively low, and the anti-offset ability is also relatively poor; and the traditional inductive coupling device can only realize one-to-one charging for a single load. Contents of the invention [0003] The purpose of this section is to outline some aspects of embodiments of the invention a...

Claims

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Application Information

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IPC IPC(8): H02J50/10H02J50/40H02J7/00
CPCH02J50/10H02J50/40
Inventor 赵晋斌张俊伟吴月宝张少腾毛玲
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER