Wiring mechanism, permanent magnet speed regulation motor and centrifugal type refrigeration compressor

A wiring mechanism, a permanent magnet speed regulation motor and a centrifugal type refrigeration compressor. The wiring mechanism comprises a wiring board, power supply wiring posts and sealing rings; the wiring board is made of steel, and the magnetic permeability μ of the steel is less than or equal to 1.31×10 -6 H/m. The wiring board is a flat board provided with an upper surface and a lower surface, and is provided with wiring holes thereon. The sealing rings are sleeved on the power supply wiring posts. The power supply wiring posts are fixed with the wiring board via the wiring holes. The sealing rings are clung to the wiring board, so that an objective of reducing heating of electrical eddy current is achieved.