Magnetic resonance wireless energy transfer system adopting active electromagnetic-interference-suppression compensation mode

A technology of wireless energy transmission and electromagnetic interference, applied in the direction of electrical components, circuit devices, etc.

Active Publication Date: 2016-09-07
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the further increase of the transmission power of the wireless magnetic resonance energy transmission system, when the power transmission capacity exceeds the kW level, the electromagnetic leakage generated by the system will still exceed the ICNIRP standard after using the traditional passive shielding technology

Method used

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  • Magnetic resonance wireless energy transfer system adopting active electromagnetic-interference-suppression compensation mode
  • Magnetic resonance wireless energy transfer system adopting active electromagnetic-interference-suppression compensation mode
  • Magnetic resonance wireless energy transfer system adopting active electromagnetic-interference-suppression compensation mode

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Embodiment 1

[0032] The magnetic resonance wireless energy transmission system for active electromagnetic interference suppression and compensation in this embodiment has a structure as attached figure 1 As shown, the composition mainly includes the wireless energy transmission subsystem and the active electromagnetic interference suppression and compensation subsystem. side) and between the wireless energy transmission area. The composition of the wireless energy transmission subsystem includes a transmitting end module 5, a transmitting antenna 3 connected to the transmitting end module, a receiving end module 4 and a receiving antenna 2 connected to the receiving end module; both the receiving antenna and the transmitting antenna are coils The structural antenna is composed of N Litz wires of 0.1mm×200, and the coil planes of the receiving antenna and the transmitting antenna are arranged parallel and opposite to each other. The composition of the active electromagnetic interference su...

Embodiment 2

[0035] The magnetic resonance wireless energy transmission system for active electromagnetic interference suppression and compensation in this embodiment has a structure as attached image 3 As shown, the structure is basically the same as that of Embodiment 1, the difference is that the outer side of the transmitting antenna 3 and the receiving antenna 2 in the wireless energy transmission subsystem are provided with a ferrite 1 of the overall structure to reduce the wireless energy consumption. Electromagnetic leakage of energy transmission subsystems.

Embodiment 3

[0037] The magnetic resonance wireless energy transmission system for active electromagnetic interference suppression and compensation in this embodiment has a structure as attached Figure 4 As shown, the structure is basically the same as that of Embodiment 2, except that the outer side of the transmitting antenna 3 and the structure of the ferrite 1 provided on the receiving antenna 2 in the wireless energy transmission subsystem. The ferrite structure in this embodiment is a bulk structure ferrite dispersedly arranged to improve the heat dissipation performance of the ferrite, and is suitable for a high-power transmission system.

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PUM

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Abstract

The invention discloses a magnetic resonance wireless energy transfer system adopting an active electromagnetic-interference-suppression compensation mode. The magnetic resonance wireless energy transfer system comprises a wireless energy transfer sub system and an active electromagnetic-interference-suppression compensation sub system; an active anti-interference suppression emission sub system samples the emitted energy source signal through a signal sampler; and under the premise of regulating the wireless magnetic resonance energy transmitting and receiving antennas to realize normal energy transfer, the sampled energy signal passes through an amplifier and a phase shifter which are adjusted according to a specific environment and provided with adjustable gains, so that the anti-interference transmitting antenna can generate a magnetic field which can counteract the electromagnetic interference in a specific region, and the purpose of elimination or high suppression ratio of the electromagnetic interference in the specific region can be realized. The main technological advantage of the wireless energy transfer system is as follows: by adoption of the active electromagnetic-interference-suppression emission sub system additionally provided with multiple branches, the flexible setting of the installing position of the anti-interference antenna, the automatic region scanning and quite highly required electromagnetic interference suppression can be realized through the multiple transmitting antennas and the phase position regulating technology.

Description

technical field [0001] The invention belongs to the field of wireless energy transmission and electromagnetic compatibility, in particular to a magnetic resonance wireless energy transmission system for active electromagnetic interference suppression and compensation. Background technique [0002] Wireless magnetic resonance energy transmission is an efficient charging technology that does not depend on the wired transmission medium, but relies on the resonant magnetic field between the transmitting antenna and the receiving antenna as the principle of energy transmission, which overcomes many disadvantages of traditional wired charging: such as wired contact sparks, sockets There are many kinds of non-universal, etc., which have broad application and development prospects. With the development of wireless magnetic resonance energy transfer technology, especially for high-power wireless magnetic resonance energy transfer systems, the electromagnetic radiation of the transmit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/12H02J50/70
Inventor 刘长军刘臻龙吴世臣申景诗
Owner SICHUAN UNIV
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