Electronic device including structure for reducing damage to flexible printed circuit board

An electronic device comprising:

• a first housing;
• a second housing;
• a hinge structure rotatably connecting the first housing and the second housing;
• a first printed circuit board (PCB) disposed in the first housing;
• a second PCB disposed in the second housing and spaced apart from the first PCB;
• a flexible printed circuit board (FPCB) extending from the first PCB across the hinge structure to the second PCB to connect the first PCB and the second PCB;
• a support plate disposed on the hinge structure and including a hole through which the FPCB passes;
• an adhesive member, comprising an adhesive material, disposed between the FPCB and the support plate to attach the FPCB to the support plate;
• and
• a waterproof member, comprising a waterproof material, disposed in the hole;
• and,
• wherein, the FPCB includes:
• a first region connected to the first PCB including a first connector including a first set of conductive pins and a second connector including a second set of conductive pins and spaced apart from the first connector;
• a second region between the support plate and the hinge structure;
• and
• a third region connecting the first region and the second region through the hole and including a slit separating the first connector and the second connector;
• and,
• wherein, the slit is at least partially disposed in the waterproof member by extending from the first region into the hole, and
• wherein, a size of the first PCB is greater than a size of the second PCB.