Battery pack protection device and method
First Claim
1. A battery pack protection device, comprising:
- a sensing unit configured to sense an overcharging state when a charging amount is more than a first predetermined reference value and sense an overdischarging state of a battery when a discharging amount is more than a second predetermined reference value and the charging amount is less than a third predetermined reference value;
a plurality of switches installed on a charging path and a discharging path of the battery; and
a control unit configured to control the plurality of switches so that the battery is only dischargeable during overcharging or only chargeable during overdischarging by an output signal of the sensing unit,wherein the control unit is further configured to control the plurality of switches so that the battery is both chargeable and dischargeble when the charging amount is less than the first predetermined reference value and more than the third predetermined reference value, and when the discharging amount is more than the second predetermined reference value, during charging or discharging of the battery.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed are a battery pack protection device and method. The battery pack protection device includes: a sensing unit configured to sense an overcharging state or an overdischarging state of a battery; a plurality of switches installed on a charging path and a discharging path of the battery; a control unit configured to control the plurality of switches so that the battery is both chargeable and dischargeable when the battery is not in the overcharging state or the overdischarging state and control the plurality of switches so that the battery is only dischargeable during overcharging or only chargeable during overdischarging by an output signal of the sensing unit; and a display unit configured to display the charging state or the discharging state of the battery.
12 Citations
13 Claims
-
1. A battery pack protection device, comprising:
-
a sensing unit configured to sense an overcharging state when a charging amount is more than a first predetermined reference value and sense an overdischarging state of a battery when a discharging amount is more than a second predetermined reference value and the charging amount is less than a third predetermined reference value; a plurality of switches installed on a charging path and a discharging path of the battery; and a control unit configured to control the plurality of switches so that the battery is only dischargeable during overcharging or only chargeable during overdischarging by an output signal of the sensing unit, wherein the control unit is further configured to control the plurality of switches so that the battery is both chargeable and dischargeble when the charging amount is less than the first predetermined reference value and more than the third predetermined reference value, and when the discharging amount is more than the second predetermined reference value, during charging or discharging of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A battery pack protection method, comprising:
-
sensing, by a sensing unit, overcharging of a battery when a charging amount is more than a first predetermined reference value and overdischarging of the battery when a discharging amount is more than a second predetermined reference value and the charging amount is less than a third predetermined reference value; controlling a plurality of switches so that the battery is only dischargeable during the overcharging or only chargeable during the overdischarging by an output signal of the sensing unit; and controlling the plurality of switches so that the battery is both chargeable and dischargeble when the charging amount is less than the first predetermined reference value and more than the third predetermined reference value, and when the discharging amount is more than the second predetermined reference value, during charging or discharging of the battery. - View Dependent Claims (10, 11, 12, 13)
-
Specification