Back to results
US 8,802,284 B2Granted
Battery pack
AssigneeSamsung SDI Co., Ltd.
InventorsWoon-Seong Baek, Jong-Pil Kim
Life of this patent
Estimating the term…
Abstract
A battery pack that includes a case and a bare cell. The battery pack further includes a screw for combining the case and the bare cell to each other. The screw includes: a head portion having a screw groove formed in a first surface thereof; a body portion disposed on a second surface of the head portion and including a screw thread; and a connection portion disposed between the head portion and the body portion, wherein a thickness of the head portion is within 0.3 to 1 mm.
Claims18
A battery pack, comprising:
- a case;
- and
- a bare cell,
- wherein the battery pack further comprises a screw for combining the case and the bare cell to each other,
- wherein the screw comprises:
- a head portion having a screw groove formed in a first surface thereof;
- a body portion disposed on a second surface of the head portion and comprising a screw thread;
- and
- a connection portion disposed between the head portion and the body portion,
- wherein a thickness of the head portion is within 0.6 to less than 0.7 mm,
- wherein a ratio of a thickness of the head portion with respect to a height of the body portion is within 1:2.5 to 1:3.5,
- wherein a pitch of the screw thread is greater than 0.25 and less than or equal to 0.35 mm, and
- wherein an edge portion of the second surface of the head portion has a curvature radius within 0.05 to 0.1 mm.
10 more elements
Dependencies are inferred from the claim text.