US Patent 11789125 Position locator

A position locator with a shell having a main board, a battery, a positive electrode shrapnel, a cathode shrapnel and light source. The battery supplies power through the positive electrode shrapnel and cathode shrapnel connected to the main board, the shell has a light-transmitting window, the light source is set on one side of the main board in the middle and controlled by the main board, the battery is set on the other side of the main board, the shell has a concave battery storage space, the positive electrode shrapnel and cathode shrapnel both comprising solder pads and contacts set on the solder pads, the bottom of the solder pads have reference surfaces substantially parallel to the main board.