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

Abstract

The invention discloses a magnetic shielding coil structure of a slip ring wireless power transmission system and a parameter optimization method thereof, comprising a slip ring base, a slip ring, a high-frequency inverter power supply, a primary coil, a first resonance capacitor circuit board, and a secondary coil , the second resonant capacitor circuit board, the winding cylinder, the first bracket and the first shielding coil and the third resonant capacitor circuit board mounted on the bracket, the second bracket and the second shielding coil mounted on the bracket and The fourth resonant capacitor circuit board; the slip ring base carries the slip ring, the surface of the slip ring is wound with the secondary coil, the secondary coil is connected to the second resonant capacitor circuit board, the winding cylinder is sleeved outside the slip ring, and the surface is wound with the primary coil, The primary coil is connected to the first resonant capacitor circuit board, the high-frequency inverter power supply is respectively connected to the first resonant capacitor circuit board and the primary coil, and the first and second brackets are placed in the positive and negative directions of the axial direction of the slip ring. The present invention reduces the system cost, volume and mass by adding a magnetic shielding coil, and provides a good magnetic shielding effect.

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 transmission method is not suitable for all scenarios. For medical products such as implanted medical products, mining equipment and other power transmission equipment that require higher safety levels and contactless transmission. Further research on wireless power transmission and promotion of its application is essential. [0003] When wireless power transmission system transmits energy, there will be leakage of electromagnetic field, which affects the safety of human body and other equipment. In order to solve the problem of electromagnetic le...

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

Images