The lid opening and closing mechanism in the present disclosure has an operating member which is displaceable relative to a housing body, and a drive mechanism. When the operating member is in a first position relative to the housing body, the drive mechanism locks the lid so that the lid does not move in a predetermined direction, and when the operating member is moved to a second position relative to the housing body, the drive mechanism releases the lock on the lid, moves the lid in the predetermined direction by at least a predetermined distance, and separates the lid from a predetermined face in a direction perpendicular to the predetermined face.