Core welding secure architecture

The utility model discloses a core welding secure architecture, including at least core more than two, at each the both ends face of core is provided with the metal spraying layer, still including connecting each the connection piece of core terminal surface the metal spraying layer with be provided with DMD insulated paper between the connection piece. The utility model discloses insert a DMD insulated paper between connection piece and metal spraying layer for electrical insulation. Therefore as connection piece welding spot drop the time, can effectively avoid connection piece and the electric spark of metal spraying layer in the brush emergence, and reduce the extra contact resistance who brings owing to contact instability simultaneously, avoid improving its operational safety greatly moving the hidden danger that the in -process exists because of generating heat.