Serviceable battery pack assembly
AssigneeGM Global Technology Operations LLC
InventorsAndrew W. White, Terry A. Swartzell, James A. Rochon, Terry J. Short, Charles E. Jensen
Life of this patent
Estimating the term…
Abstract
An serviceable battery pack and assembly method may include a battery pack having a stanchion extending through a wall of the battery pack, a first battery pack seal between the stanchion and the wall of the battery pack, attachment of the battery pack at the exterior of a floor pan of a vehicle at the stanchion, and a second battery pack seal between the exterior of the floor pan and the wall of the battery pack surrounding the stanchion.
Claims20
An attachment system for a serviceable battery pack, comprising:
- a battery pack comprising a first enclosure wall having a respective inner side, a respective outer side and defining a respective opening therethrough;
- a stanchion comprising an interior portion inside the battery pack and a first exterior portion extending from the interior portion through the first enclosure wall opening to outside the battery pack, the interior portion including a first flange larger than the first enclosure wall opening, the stanchion including a first set of threads on the first exterior portion;
- a first gasket trapped between the first flange and the inner side of the first enclosure wall;
- a first nut engaging the first set of threads and configured to compress the first enclosure wall between the first nut and the first flange;
- a battery pack attachment structure comprising a first surface facing the outer side of the first enclosure wall and defining a respective opening therethrough, the first enclosure wall opening and the battery pack attachment structure opening being substantially concentric;
- a threaded attachment fastener configured to draw the stanchion and the battery pack attachment structure together;
- and
- a first seal disposed between the first enclosure wall and the battery pack attachment structure.
An attachment system for a serviceable battery pack, comprising:
- a battery pack comprising an enclosure wall having an inner side, an outer side and defining a respective opening therethrough;
- a stanchion comprising an interior portion inside the battery pack and an exterior portion extending from the interior portion through the enclosure wall opening to outside the battery pack, the interior portion including a flange larger than the enclosure wall opening, the stanchion including a first set of external threads on the exterior portion and a second set of threads;
- a gasket trapped between the flange and the inner side of the enclosure wall;
- a first nut engaging the first set of external threads and configured to compress the enclosure wall between the first nut and the flange;
- a battery pack attachment structure comprising a first surface facing the outer side of the enclosure wall and defining a respective opening therethrough, the enclosure wall opening and the battery pack attachment structure opening being substantially concentric;
- a threaded attachment fastener engaging the second set of threads and configured to draw the stanchion and the battery pack attachment structure together;
- and
- a seal disposed between the enclosure wall and the battery pack attachment structure.
An assembly method for a serviceable battery pack, comprising:
- providing a battery pack including a stanchion extending through a wall of the battery pack;
- providing a first battery pack seal between the stanchion and the wall of the battery pack;
- attaching the battery pack at the exterior of a floor pan of a vehicle at the stanchion;
- and
- providing a second battery pack seal between the exterior of the floor pan and the wall of the battery pack surrounding the stanchion.
Dependencies are inferred from the claim text.