Abstract: A substrate support structure includes: a substrate support including: a support body; and a protrusion including a base portion and a leading-end portion, the protrusion protruding from the support body; and a substrate having: a substrate body; a through hole provided at the substrate body; and a protruded portion surrounding the through hole, the protruded portion protruding from a first face of the substrate body, in which the base portion of the protrusion passes through the through hole, and the leading-end portion protrudes from the first face of the substrate body inside the protruded portion and engages with the substrate body such that the through hole is covered.

Abstract: A battery connection module includes a plurality of bus bars provided on a battery stack in which a plurality of battery packs are assembled, and attached to electrodes of the battery packs, a flexible printed wiring board provided on the battery stack, and a first electronic component electrically connected to the flexible printed wiring board. The flexible printed wiring board includes a side surface portion which extends outward from above the battery stack and is bent so as to be fixed to a side surface of the battery stack, and the first electronic component is provided on the side surface portion.

Abstract: A substrate support structure includes: a substrate support including: a support body; and a protrusion including a base portion and a leading-end portion, the protrusion protruding from the support body; and a substrate having: a substrate body; a through hole provided at the substrate body; and a protruded portion surrounding the through hole, the protruded portion protruding from a first face of the substrate body, in which the base portion of the protrusion passes through the through hole, and the leading-end portion protrudes from the first face of the substrate body inside the protruded portion and engages with the substrate body such that the through hole is covered.