JUNCTION BOX

摘要

A junction box, comprising a multi-layer circuit board, wherein the circuit board (6) comprises: a plurality of dielectric layers, each having conducting track on a side and arranged one on top of another to form the multi-layered circuit board; power circuitry (4) mounted on the circuit board; signal processing circuitry (5) mounted on the circuit board; and a power input for inputting electrical power into the circuitry on the circuit board, wherein the electrical power is transferred through conducting track (12) arranged to be on an inner dielectric layer, the conducting track oh the inner dielectric layer being thicker than the conducting track arranged on the outer dielectric layers, and wherein the power circuitry is arranged on one region of the circuit board and the signal processing circuitry is arranged on another region of the circuit board, the two regions being thermally isolated by a thermal dam (9).