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US 11,962,021 B2Granted
Battery pack
AssigneeBlack & Decker Inc.
InventorsNathan J. Cruise, Alexander R. Barton, Ralphy A. Louis
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a battery pack including improved temperature sensing features. The battery pack includes a plurality of battery cells, a battery cell holder holding the battery cells in a fixed position relative to each other, a printed circuit board attached to the battery cell holder and a thermistor attached to the printed circuit board in a position between the printed circuit board and at least one of the plurality of battery cells to sense a temperature of at least one of the plurality of battery cells. The printed circuit board includes a cutout to retain heat in the thermistor.
Claims12
A battery pack, comprising:
- a plurality of battery cells;
- a printed circuit board including a central portion and a perimeter edge;
- a temperature sensor attached to the printed circuit board adjacent to the perimeter edge between the printed circuit board and at least one of the plurality of battery cells, the temperature sensor having a first dimension along a first axis;
- and
- a cutout in the printed circuit board positioned between the temperature sensor and the central portion, the cutout having a first dimension along the first axis, the first dimension of the cutout being at least two times the first dimension of the temperature sensor and the first dimension of the temperature sensor being centrally positioned relative to the first dimension of the cutout along the first axis, to retain heat in the temperature sensor such that the temperature of the temperature sensor more closely tracks the temperature of the plurality of battery cells.
2 more elements
A battery pack, comprising:
- a plurality of battery cells;
- a printed circuit board including a central portion and a perimeter edge;
- a temperature sensor attached to the printed circuit board adjacent to the perimeter edge between the printed circuit board and at least one of the plurality of battery cells, the temperature sensor having a first dimension along a first axis;
- and
- a cutout in the printed circuit board positioned between the temperature sensor and the central portion, the cutout having a first dimension along the first axis, the first dimension of the cutout being at least two times the first dimension of the temperature sensor and the first dimension of the temperature sensor being centrally positioned relative to the first dimension of the cutout along the first axis, to prevent heat from the temperature sensor from sinking to a portion of the printed circuit board on a side of the cutout opposed to the temperature sensor.
2 more elements
A battery pack, comprising:
- a plurality of battery cells;
- a battery cell holder holding the plurality of battery cells in a fixed position relative to each other, the battery cell holder having an opening exposing a portion of at least one of the plurality of battery cells;
- a printed circuit board having a first second side, a second side, a central portion and a perimeter edge, the second side opposing the first side, the printed circuit board affixed to the battery cell holder such that the second side of the printed circuit board faces the battery cell holder;
- a thermistor attached to the second side of the printed circuit board adjacent to the perimeter edge, the thermistor received in the battery cell holder opening such that the thermistor is positioned between the printed circuit board and the exposed portion of the at least one of the plurality of battery cells, the temperature sensor having a first dimension along a first axis;
- and
- a cutout in the printed circuit board extending from the first side of the printed circuit board to the second side of the printed circuit board in a first direction and includes a first portion extending along a first side of the thermistor in a second direction, the second direction being generally perpendicular to the first direction, the portion between the temperature sensor and the central portion, the first portion having a first dimension along the first axis, the first dimension of the cutout being at least two times the first dimension of the temperature sensor and the first dimension of the temperature sensor being centrally positioned relative to the first dimension of the cutout along the first axis.
3 more elements
Dependencies are inferred from the claim text.