PCB electrical conversion structure applied to limited space

The invention relates to a PCB electric conversion structure applied to a limited space, which can improve the production efficiency, can reduce the production cost, can adjust the wire outlet direction of a power line, and is more compact in structure, good in use effect and convenient to use, a winder is arranged in a shell, a power line inlet and outlet is formed in one side of the shell, and the power line inlet and outlet is formed in the other side of the shell. A through hole is formed in the front face of the shell, an annular installation ring is arranged on the front face of the shell, an annular protrusion is arranged on the inner circle face of the annular installation ring, an annular groove is formed in the outer circle face of a base plate in the plug, the plug is installed in the annular installation ring through concave-convex matching of the annular groove and the annular protrusion, and a PCB is arranged on one side of a rotating hub in the winder. The inner side surface of the chassis is p