Battery pack and vacuum cleaner including the same
AssigneeSamsung SDI Co., Ltd.
InventorsKyongpil Jin, Myungsang Lee
Life of this patent
Estimating the term…
Abstract
A battery pack includes a battery including at least one battery cell, a terminal portion electrically connected to the battery and including a first pack terminal connected to an external load and a second pack terminal, a first switch configured to switch a discharge current of the battery according to a first control signal, a second switch configured to open or close according to a second control signal, and to open the first switch that is turned on by the first control signal, by a voltage of the first pack terminal or the second pack terminal, and a battery manager configured to output the first control signal and the second control signal.
Claims9
A battery pack comprising:
- a battery comprising at least one battery cell;
- a terminal portion electrically connected to the battery and comprising a first pack terminal configured to be connected to an external load and a second pack terminal;
- a first switch configured to switch a discharge current of the battery according to a first control signal;
- a second switch configured to open or close according to a second control signal, and to open the first switch that is turned on by the first control signal by applying a voltage of-the first pack terminal or the second pack terminal to the first switch;
- and
- a battery manager configured to output the first control signal and the second control signal,
- wherein the battery manager comprises:
- a protection integrated circuit (IC) configured to sense a voltage of the battery and to output the first control signal;
- and
- a micro-controller configured to output the second control signal.
A battery pack comprising:
- a battery comprising at least one battery cell;
- a terminal portion electrically connected to the battery and comprising a first pack terminal connected to an external load and a second pack terminal;
- a first switch configured to switch a discharge current of the battery according to a first control signal;
- a second switch configured to open or close according to a second control signal, and to open the first switch that is turned on by the first control signal by a voltage of the first pack terminal or the second pack terminal;
- and
- a battery manager configured to output the first control signal and the second control signal,
- wherein the battery manager is configured to output, as the second control signal, a pulse width modulation signal having a pulse width varying according to a duty cycle.
A vacuum cleaner comprising:
- a battery pack;
- a capacitor electrically connected to the battery pack;
- and
- a motor connected in parallel to the capacitor,
- wherein the battery pack comprises:
- a battery comprising at least one battery cell;
- a first pack terminal and a second pack terminal electrically connected to the battery, and configured to be electrically connected to the capacitor and the motor;
- a first switch configured to switch a discharge current of the battery according to a first control signal;
- a second switch configured to open or close according to a second control signal, and to open the first switch that is turned on by the first control signal by applying a voltage of the first pack terminal or the second pack terminal to the first switch;
- and
- a battery manager configured to output the first control signal and the second control signal.
Dependencies are inferred from the claim text.