Battery module having connector mounted on FPCB, and battery pack and vehicle comprising same

A battery module, comprising:

• a cell stack formed by stacking a plurality of battery cells;
• a bus bar frame assembly including a bus bar frame covering first and second opposite longitudinal ends of the cell stack and a plurality of bus bars fixed to the bus bar frame and electrically connected to the battery cells;
• and
• a FPCB assembly including a first FPCB extending along a longitudinal direction of the cell stack and covering at least a portion of an upper surface of the cell stack, a second FPCB extending from one longitudinal end of the first FPCB and electrically connected to the bus bars, and a connector having a connector pin inserted into a pin insert hole formed in the second FPCB,
• wherein the second FPCB includes a connector mounting portion having the pin insert hole extending therein,
• wherein the FPCB assembly further comprises a non-conductive stiffener interposed between the connector and the connector mounting portion, and
• wherein the stiffener has a perforation hole formed at a location corresponding to the connector pin and the pin insert hole, such that the connector pin extends through the perforation hole.