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Guías de Flujo

Referencia técnica sobre Guías de Flujo para el diseño, integración e implementación de sistemas de energía inalámbrica.

6 minArtículo 37/50Diseño de Bobinas

Flux Guides — educational diagram — Fig.: Diagrama educativo de “Flux Guides”.

Flux guides are geometric features — ferrite rails, C-cores, or shaped steel laminations — that channel magnetic flux from transmitter to receiver while limiting spill into the environment. In docks they improve k for a given coil area and help separate power flux from FOD sense zones when designed with FEM.

Guides interact with all nearby permeable and conductive materials; a flux guide that helps in CAD can hurt when a steel bolt head sits in the wrong place on the production line.

01Design approach

Define intended flux tube between TX and RX in 3D FEM.
Minimize flux crossing conductive loops (cable harnesses, frame rails).
Include saturation checks on guide sections at max current.

Flux Guides — supporting diagram — Fig.: Ilustración de apoyo para “Flux Guides”.

02Manufacturing

Machined ferrite guides are precise but costly; molded ferrite suits volume. Tolerance on guide air gaps (similar to transformer gaps) tunes inductance — document shim procedures if used.

03Maintenance

Debris in flux channels (metal swarf) detunes pads — sealed encapsulation helps.
Guides chipped in collisions change field shape — inspect after impacts.
Replacement guides must be paired sets TX/RX when coupling is optimized together.