Battery pack moisture sensing module, moisture sensing device using same, and battery pack protection method
AssigneeLG Energy Solution, Ltd.
InventorChi Ho AHN
Life of this patent
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Abstract
A battery pack moisture detection module includes a case having an internal space at an inside of the case, a first dielectric formed on at least a part of an inner surface of the case, a second dielectric formed inside the case at a predetermined height from a lower surface of the case, and a moisture detection unit electrically connected to the second dielectric to detect moisture infiltrating into the case. A moisture detection device can use the battery pack moisture detection module. Also, a method of protecting the battery pack can be performed using the moisture detection device.
Claims19
A battery pack moisture detection module comprising:
- a case having an internal space at an inside of the case;
- a first dielectric formed on at least a part of an inner surface of the case;
- a second dielectric formed inside the case at a predetermined height from a lower surface of the case;
- and
- a moisture detection unit electrically connected to the second dielectric to detect moisture infiltrating into the inside of the case.
A battery pack moisture detection device, comprising:
- a reference voltage Vref,
- a reference resistor Rref;
- a moisture detection module configured to detect moisture infiltrating into a battery pack according to a change in a resistance of the moisture detection module;
- and
- a control unit configured to determine whether moisture infiltrates the battery pack and an amount of moisture infiltration in the battery pack by using a voltage drop amount due to a resistance value of the moisture detection module with respect to the reference voltage Vref as an input voltage Vin.
Dependencies are inferred from the claim text.