Battery assembly structure
Provided is a battery assembly structure including: a holding panel that holds a bottom part of a battery module; a pair of mounting brackets coupled to both ends of the holding panel and standing upright so as to face both end surfaces of the battery module; and an elastic member disposed between an inner surface of at least one of the pair of mounting brackets and at least one end surface of the end surfaces of the battery module.
1. A battery assembly structure that is configured to be fixed to side frames of a vehicle provided apart from each other in a width direction of the vehicle, comprising:
a holding panel that holds a bottom part of a battery module, the holding panel and the battery module extending in a longitudinal direction that is parallel to the width direction of the vehicle, the holding panel having both ends in the longitudinal direction, and the battery module having both end surfaces in the longitudinal direction;
a pair of mounting brackets coupled to the both ends of the holding panel and having wall portions that stand upright so as to face the both end surfaces of the battery module;
an elastic member disposed between an inner surface of at least one of the wall portions and at least one end surface of the both end surfaces of the battery module; and
an elastic insertion material inserted between the elastic member and the at least one end surface of the battery module,
each of the pair of mounting brackets further including:
a mounting part that is configured to be fixed to a corresponding one of the side frames; and
a coupling portion that is fixed to the holding panel;
a gap being provided between an outer surface of the at least one of the wall portions and the corresponding one of the side frames, and
each of the wall portions connecting the mounting part with the coupling portion and having a hollow sectional shape with a hollow portion provided between the inner and outer surfaces thereof.
2. The battery assembly structure according to claim 1 , wherein the elastic member is held on the inner surface of the at least one of the pair of mounting brackets.
3. The battery assembly structure according to claim 1 , wherein the holding panel includes a rectangular bottom panel having both side edges, and side edge portions standing upright at the side edges of the bottom panel along the side edges, and the bottom part of the battery module is held by being sandwiched between the side edge portions.
4. The battery assembly structure according to claim 3 , wherein:
the holding panel holds the battery module in which single cells are stacked; and
the single cells are each held by being sandwiched between the side edge portions of the holding panel.
5. The battery assembly structure according to claim 1 , wherein the holding panel has a hollow sectional shape.