A radio transmission system and its application device

A radio transmission and system application technology, applied in circuit devices, battery circuit devices, transportation and packaging, etc., can solve problems such as energy waste, achieve the effects of reducing direct coupling, improving efficiency, and high Q value

Active Publication Date: 2019-12-06
赵莹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, the wireless power in the existing wireless charging system is equal in all directions, but in actual use, we hope that the power will be concentrated in the direction of charging, and relatively small in other directions. part of energy wasted

Method used

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  • A radio transmission system and its application device
  • A radio transmission system and its application device
  • A radio transmission system and its application device

Examples

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Effect test

Embodiment 1

[0042] A radio transmission system, the system includes a transmitting unit and a receiving unit, the transmitting unit includes a transmitting coil and a transmitting resonant coil, the receiving unit includes a receiving coil and a receiving resonant coil; the transmitting coil and the transmitting resonant coil On the same plane, the receiving coil and the receiving resonant coil are on the same plane, and the transmitting part and the receiving part realize electrical transmission through magnetic resonance. In the prior art, the resonant coil and the excitation coil (the excitation coil refers to the transmitting coil or the receiving coil) are composed of a group of coils on different planes on the same normal line. They are front-to-back configurations, and there is a strong coupling when the two coils are relatively close together. It is usually necessary to increase the direct distance between the two coils to reduce coupling. This is difficult to achieve when space ...

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PUM

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Abstract

The invention belongs to the field of wireless charging and particularly relates to a radio transmission system and an application device thereof. The system comprises an emitting part and a receiving part. The system is characterized in that the emitting part comprises an emitting coil and an emitting resonance coil. The receiving part comprises a receiving coil and a receiving resonance coil. The emitting coil and the emitting resonance coil are in a same plane. The receiving coil and the receiving resonance coil are in a same plane. The emitting part and the receiving part realize electric transmission through a magnetic resonance mode. An excitation coil and the resonance coil are in the same plane, the direct coupling between coils is effectively reduced, the traction effect of the receiving coil by a back end circuit can be reduced, thus the Q values of two coils are higher, the ability of capturing space energy is improved, and the energy transmission efficiency and a transmission distance are improved at the same time.

Description

technical field [0001] The invention mainly belongs to the field of wireless charging, and in particular relates to a radio transmission system and an application device thereof. Background technique [0002] Wireless charging is spreading rapidly in the market due to its superior user experience. At present, the magnetic induction charging system is more common in the market. The magnetic induction charging system requires the contact or alignment between the charging device and the charged device. It does not fully reflect the advantages of wireless charging. The more advanced magnetic resonance charging system does not require contact or alignment, and can move freely within a certain range, which can provide a better user experience. But because the magnetic resonance charging system needs to transmit and receive resonance at the same frequency. At the same time, the efficiency of the charging system is largely determined by the Q value of the transmitting and receiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J50/12
CPCH02J7/025
Inventor 赵莹
Owner 赵莹
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