Flexible printed circuit board and wiring module

A flexible printed circuit board comprising:

• a proximal end portion;
• first and second strip portions, each extending in a first direction from the proximal end portion;
• and
• conductive paths that are provided spanning from the proximal end portion to each of the first and second strip portions, the conductive paths including strip side connecting portions that are electrically connected to electrode terminals of electricity storage devices at portions of the conductive paths in the first and second strip portions,
• wherein, at least in the first strip portion of the first and second strip portions, a deformation portion is provided that deforms to increase a distance between the first strip portion and the second strip portion in a second direction that intersects the first direction,
• the deformation portion of the first strip portion includes at least one L-shaped slit including a longitudinally extending slit portion that extends in the first direction and a transversely extending slit portion that extends from a first end of the longitudinally extending slit portion to a longitudinal edge of the first strip portion, and the distance between the first strip portion and the second strip portion in the second direction is increased as a result of the deformation portion being deformed to widen the at least one L-shaped slit in the second direction,
• the at least one L-shaped slit comprises a first L-shaped slit and a second L-shaped slit,
• the first L-shaped slit includes a first longitudinally extending slit portion that extends in the first direction and a first transversely extending slit portion that extends from a front end of the first longitudinally extending slit portion to a first longitudinal edge of the first strip portion,
• the second L-shaped slit includes a second longitudinally extending slit portion that extends in the first direction and a second transversely extending slit portion that extends from a rear end of the second longitudinally extending slit portion to a second longitudinal edge of the first strip portion,
• the second longitudinally extending slit portion is provided between the first longitudinally extending slit portion and the first longitudinal edge of the first strip portion in a width direction of the first strip portion, and
• the first strip portion is divided into three substantially equal parts in the width direction of the first strip portion by the first longitudinally extending slit portion and the second longitudinally extending slit portion.

A flexible printed circuit board comprising:

• a proximal end portion;
• first and second strip portions, each extending in a first direction from the proximal end portion;
• and
• conductive paths that are provided spanning from the proximal end portion to each of the first and second strip portions, the conductive paths including strip side connecting portions that are electrically connected to electrode terminals of electricity storage devices at portions of the conductive paths in the first and second strip portions,
• wherein, at least in the first strip portion of the first and second strip portions, a deformation portion is provided that deforms to increase a distance between the first strip portion and the second strip portion in a second direction that intersects the first direction,
• the deformation portion of the first strip portion includes at least one L-shaped slit including a longitudinally extending slit portion that extends in the first direction and a transversely extending slit portion that extends from a first end of the longitudinally extending slit portion to a longitudinal edge of the first strip portion, and the distance between the first strip portion and the second strip portion in the second direction is increased as a result of the deformation portion being deformed to widen the at least one L-shaped slit in the second direction,
• the at least one L-shaped slit comprises a first L-shaped slit and a second L-shaped slit,
• the first L-shaped slit includes a first longitudinally extending slit portion that extends in the first direction and a first transversely extending slit portion that extends from a front end of the first longitudinally extending slit portion to a first longitudinal edge of the first strip portion,
• the second L-shaped slit includes a second longitudinally extending slit portion that extends in the first direction and a second transversely extending slit portion that extends from a rear end of the second longitudinally extending slit portion to a second longitudinal edge of the first strip portion,
• the front end of the first longitudinally extending slit portion is located rearward from a front end of the first strip portion, and
• a rear end of the first longitudinally extending slit portion is located forward from a foremost strip side connecting portion, of the strip side connecting portions, provided in the second strip portion.