Interleaved DC-DC Reactor Layout for Leakage Flux Recirculation

The patent embeds a second core inside the first core, creating a nested structure where the second core is positioned within the interior space of the first core. This nesting approach allows the leakage magnetic flux to circulate through the second core without requiring additional external space, thereby resolving the contradiction between power conversion capability and spatial requirements.

The patent utilizes the internal dimensional space of the first core by placing the second core within it, effectively using the third dimension (radial/depth direction) rather than expanding in the horizontal plane. This dimensional reorganization enables the leakage flux circulation path to be contained within the existing reactor footprint, eliminating the need for additional surrounding space.

By nesting the second core within the first core, the patent creates an internal circulation path for leakage magnetic flux that does not extend beyond the reactor's external dimensions. This maintains reliability by containing the flux within the reactor volume while enabling miniaturization by eliminating the need for additional external clearance space.

The patent converts the potentially harmful leakage magnetic flux into a useful component by directing it to circulate through the second core, which is specifically designed to utilize this flux for power conversion. This transforms what would normally require isolation space into a functional element that contributes to the reactor's operation, thereby enabling miniaturization while maintaining or improving reliability.