Flexible printed circuit board assembly structure, concentrator photovoltaic module, and flexible printed circuit board assembly method

Abstract

The joint structure comprises: a junction box configured to connect an internal circuit of a device and an external conductor to each other; a metal electrode located within the junction box and intended to be connected to the external conductor; and a flexible printed circuit board in the form of a strip, the flexible printed circuit board forming the internal circuit and having an end portion for connection to the metal electrode. The metal electrode has a joint portion for joining to the end portion in an overlapping manner, and the joint portion in its free and solitary state before being overlapped with the end portion is ensured to have a gap greater than the thickness of the end portion (including the solder), between the joint portion and its opposite surface, and has mobility towards the side of the opposite surface when the joint portion is pressed.