Connecting and supporting structure for PCBA (Printed Circuit Board Assembly) and controller

The utility model discloses a connecting and supporting structure for a PCBA (Printed Circuit Board Assembly) and a controller. The connecting and supporting structure for the PCBA comprises an insulating supporting body and a conductive insert fixed on the insulating supporting body, the conductive insert penetrates through the insulating support body in the height direction of the insulating support body; the top end face and the bottom end face of the conductive insert protrude out of the insulating supporting body, the top end face of the conductive insert is used for making contact with a ground wire of the top PCBA, the bottom end face of the conductive insert is used for making contact with a ground wire of the bottom PCBA, and the conductive insert is provided with a conductive connecting part which protrudes out of the bottom end face of the conductive insert and is used for being electrically connected with the conductive shell. The conductive insert is provided with a mounting hole for the first sc