Magnetic shielding coil structure of slip ring wireless power transmission system and parameter optimization method thereof

Abstract

The invention discloses a magnetic shielding coil structure of a slip ring wireless power transmission system and a parameter optimization method thereof. The magnetic shielding coil structure comprises a slip ring base, a slip ring, a high-frequency inverter power supply, a primary side coil, a first resonant capacitor circuit board, a secondary side coil, a second resonant capacitor circuit board, a winding cylinder, a first support, a first shielding coil and a third resonant capacitor circuit board which are arranged on the first support, a second support, and a second shielding coil and a fourth resonant capacitor circuit board which are arranged on the second support, wherein the slip ring base bears the slip ring, the surface of the slip ring is wound with the secondary side coil, the secondary side coil is connected with the second resonant capacitor circuit board, the winding cylinder is sleeved outside the slip ring, the surface of the winding cylinder is wound with the primary side coil, the primary side coil is connected with the first resonant capacitor circuit board, the high-frequency inverter power supply is respectively connected with the first resonant capacitor circuit board and the primary side coil, and the first and second supports are arranged in positive and negative directions of the axial direction of the slip ring. By additionally arranging the magnetic shielding coil, the cost, the size and the mass of the system are reduced, and a good magnetic shielding effect is provided.

Description

technical field [0001] The invention relates to the technical field of wireless power transmission, in particular to a magnetic shielding coil structure of a slip ring wireless power transmission system and a parameter optimization method thereof. Background technique [0002] With the advancement of electronic science and the development of human civilization, many electronic products have been produced, and the traditional wire power transmission method cannot be applied to all scenarios. For medical products implanted in the body, mine equipment, etc., power transmission equipment with higher safety levels and contactless transmission is required. Further research on wireless power transmission and its application are essential. [0003] When the wireless power transmission system transmits energy, there will be electromagnetic field leakage, which will affect the safety of human body and other equipment. In order to solve the problem of electromagnetic leakage, in addi...

AI Technical Summary

Problems solved by technology

When setting up a wireless power supply system for rotating equipment, inductive coupling and capacitive coupling can be used. For electromagnetic field shielding using capacitive coupling, the traditional electromagnetic cavity method is still used, which cannot effectively solve the problem of electric field leakage. At the same time, the quality of the equipment is heavy. expensive

For the inductive coupling type, some scholars use ferrite shielding, but the ferrite shielding method is not suitable for high frequency, and it will reduce the efficiency and increase the cost of the system; The method is optimized, and the weight of the equipment is reduced while meeting the shielding requirements, but the system quality is still greatly increased

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