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US 2025/0174861 A1Published application
Battery pack drain assembly
AssigneeGM Global Technology Operations LLC
InventorsTimothy Glenn Ross, Alex Paulsen
Life of this patent
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Abstract
A battery pack drain assembly includes a drain housing having an outer wall that is annular and an inner wall that is annular, an annular channel defined between the outer wall and the inner wall, and a primary drain valve disposed at least partially within the inner wall. The primary drain valve is configured to open when liquid in the drain housing reaches a top of the inner wall.
Claims20
A battery pack drain assembly, comprising:
- a drain housing comprising an outer wall that is annular and an inner wall that is annular;
- an annular channel defined between the outer wall and the inner wall;
- and
- a primary drain valve disposed at least partially within the inner wall,
- wherein the primary drain valve is configured to open when liquid in the drain housing reaches an upper portion of the inner wall.
2 more elements
A battery pack assembly, comprising:
- a battery pack housing comprising a battery pack housing floor;
- a plurality of battery cells disposed in the battery pack housing;
- and
- a battery pack drain assembly embedded in the battery pack housing floor,
- wherein the battery pack drain assembly comprises:
- a drain housing comprising an outer wall that is annular and an inner wall that is annular,
- an annular channel defined between the outer wall and the inner wall, and
- a primary drain valve disposed at least partially within the inner wall, and
- wherein the primary drain valve is configured to open when liquid in the drain housing reaches a top of the inner wall.
6 more elements
A vehicle comprising:
- a battery pack assembly, comprising:
- a battery pack housing comprising a battery pack housing floor;
- a plurality of battery cells disposed in the battery pack housing;
- a cooling system for cooling the battery cells;
- and
- a battery pack drain assembly embedded in the battery pack housing floor,
- wherein the battery pack drain assembly comprises:
- a lower housing comprising an outer wall that is annular, an inner wall that is annular, and a shoulder extending inward from an upper portion of the inner wall,
- an upper housing mounted on the lower housing to form an enclosed space therein,
- an annular channel defined between the outer wall and the inner wall,
- a primary drain valve disposed through an opening in the shoulder and at least partially within the inner wall, and
- a secondary drain valve that is a one-way valve disposed on the outer wall, and
- wherein the primary drain valve is configured to open when liquid in the drain housing reaches the shoulder.
10 more elements
Dependencies are inferred from the claim text.