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US 11,728,115 B2Granted
Latch relay capable of real-time state control, state control method for latch relay, and battery pack comprising latch relay capable of real-time state control
AssigneeLG Energy Solution, Ltd.
InventorsJaedong Park, Hyunki Cho
Life of this patent
Estimating the term…
Abstract
The present invention relates to a technology that monitors a normal operation state through whether the flow of minute current is maintained in real time when a latch relay is turned on and allows the latch relay to be forcibly turned off through current prestored in a supercapacitor when an off operation of the latch relay is not normally performed.
Claims10
A latch relay for real-time state control, comprising:
- an off coil unit positioned adjacent to anode and cathode contacts;
- an on coil unit positioned adjacent to anode and cathode contacts;
- an additional control unit connected between the off coil unit and the on coil unit and controlling an on/off operation of the off coil unit;
- a current storage unit storing current supplied from the on coil unit and supplying the stored current to the additional control unit;
- and
- a determination unit determining whether a first current is applied to the anode and cathode contacts by the off coil unit when the off coil unit is turned on,
- wherein the determination unit is directly connected to a node between the additional control unit and the off coil unit,
- wherein when the off coil unit operates abnormally in a situation in which the on operation of the off coil unit is required, the current stored in the current storage unit is applied to the additional control unit, and as a result, the additional control unit is turned on and a connection state between the off coil unit and the anode and cathode contacts is turned on to open the anode and cathode contacts from each other, and
- wherein the current storage unit is positioned between the additional control unit and the on coil unit.
6 more elements
A method for real-time state control of a latch relay, the method comprising:
- storing, by a current storage unit, current supplied from an on coil unit when the on coil unit is turned on, the current storage unit being provided between an off coil unit and the on coil unit,
- wherein the off coil unit and the on coil unit are positioned adjacent to anode and cathode contacts;
- applying, when the off coil unit operates abnormally in a situation in which an on operation of the off coil unit is required, the current stored in the current storage unit to an additional control unit, the additional control unit being connected between the off coil unit and the on coil unit;
- turning on a connection state between the off coil unit and the anode and cathode contacts while the additional control unit is turned on to open the anode and cathode contacts from each other;
- applying, by the off coil unit, a first current to the anode and cathode contacts when the on coil unit is turned on;
- and
- determining, by a determination unit, whether a state in which the first current is applied is maintained,
- wherein the determination unit is directly connected to a node between the additional control unit and the off coil unit, and
- wherein the current storage unit is positioned between the additional control unit and the on coil unit.
6 more elements
A battery pack comprising:
- a battery module;
- and
- a latch relay including:
- an off coil unit positioned adjacent to anode and cathode contacts of the battery module;
- an on coil unit positioned adjacent to the anode and cathode contacts of the battery module;
- an additional control unit connected between the off coil unit and the on coil unit and controlling an on/off operation of the off coil unit;
- a current storage unit storing current supplied from the on coil unit and supplying the stored current to the additional control unit;
- and
- a determination unit determining whether a first current is applied to the anode and cathode contacts by the off coil unit when the off coil unit is turned on,
- wherein the determination unit is directly connected to a node between the additional control unit and the off coil unit,
- wherein when the off coil unit operates abnormally in a situation in which the on operation of the off coil unit is required, the current stored in the current storage unit is applied to the additional control unit, and as a result, the additional control unit is turned on and a connection state between the off coil unit and the anode and cathode contacts of the battery module is turned on to open the anode and cathode contacts of the battery module from each other, and
- wherein the current storage unit is positioned between the additional control unit and the on coil unit.
9 more elements
Dependencies are inferred from the claim text.