Power supply

The utility model provides a power supply, which can solve the problem of inconvenience in wiring in the power supply by using a simple structure. The power supply comprises a power supply mainboard and an electric appliance element forming a power supply loop, and the electric appliance element is arranged on one side of the power supply mainboard. The power supply further comprises a top layer and a bottom layer, the top layer is located between the bottom layer and the power supply mainboard, the top layer forms a planar conductor layer and is electrically connected with the grounding end of the power supply, and pins of at least a part of the electrical components sequentially penetrate through the power supply mainboard and the top layer and are electrically connected with the bottom layer of the adapter plate. 本实用新型提供一种电源，能够利用简单的结构，解决在电源内部走线不便的问题。该电源包括电源主板和构成电源回路的电器元件，该电器元件设置于电源主板的一侧；该电源还包括顶层和底层，顶层位于底层与电源主板之间，顶层形成为面状导体层，与电源的接地端电性连接，至少一部分电器元件的引脚依次穿过电源主板和顶层，并与转接板的底层电性连接。