Fuel-cell power generation system and method of manufacturing the same

A fuel-cell power generation system comprising:

• a fuel cell that generates electricity by electrochemical reaction using fuel and an oxidizer;
• a resin module that is provided outside the fuel cell, the resin module including portions on which a plurality of devices can be mounted, and the resin module being configured as a subassembly of a plurality of flow paths through which fuel, air, or water flows, inner walls defining the flow paths being made of resin, the plurality of flow paths being formed to correspond to the plurality of devices and being formed integrally within the resin module;
• and
• a cut-off device formed separate from the resin module and configured to directly connect to the resin module at the portions on which a plurality of devices can be mounted;
• wherein the resin module includes:
• a welded surface part, to which a weld lid is welded when vibration welding is performed, and
• a first wall and a second wall, which are respectively provided at a first side of the welded surface and at a second side of the welded surface while keeping certain distances and spaces from the welded surface,
• wherein when the resin module is covered with the welded part, a first trap part formed between the first wall and the welded surface part, and
• a second trap part formed between the second wall and the welded surface part and
• wherein when vibration welding is performed, swarf produced from the welded surface part is trapped and sealed by either of the first trap part or the second trap part.