3S loosely coupled transformer for wireless power transmission and parameter determination method

Abstract

The invention discloses a 3S loosely coupled transformer for wireless power transmission and a parameter determination method, belongs to the technical field of wireless power transmission, and particularly relates to a loosely coupled transformer. The primary side coupling mechanism and the secondary side coupling mechanism are oppositely arranged; the primary side coupling mechanism is positioned on the lower side of the secondary side coupling mechanism; the primary side coupling mechanism comprises a primary side ferrite magnetic core, a coil A and two coils B. The coil A is attached to the upper surface of the ferrite magnetic core; the two coils B are respectively and independently wound into a rectangular ring, the two coils B are attached to two opposite corners of the coil A, and the coil C of the secondary side coupling mechanism is attached to the lower surface of the ferrite magnetic core; and the two coils D are respectively and independently wound into rectangular rings, the two coils D are attached to two opposite corners of the coil C, and the two coils B and the two coils D are arranged in a staggered mode. The transformer is suitable for voltage transformation and regulation.

Description

technical field [0001] The invention belongs to the technical field of wireless power transmission, and in particular relates to a loose coupling transformer. Background technique [0002] When wired power transmission supplies power to multiple devices, there are problems of messy winding and unsightly appearance; when powering underground equipment, electric sparks between contacts are likely to cause dust explosion accidents; when powering underwater equipment, electric leakage accidents are likely to occur; When powering implanted medical equipment, there are problems such as susceptibility to infection and inconvenience; when slip ring power transmission is powering rotating equipment, there are problems such as large mechanical wear and short life. The above shortcomings limit the application of contact power supply in these fields. [0003] Wireless Power Transfer (WPT) technology completes energy transmission through different media such as space magnetic fields, sp...

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