Abstract: A battery pack is advantageous for effective control and maintenance of thermal events. A battery pack according to one aspect of the present disclosure may include a battery module having one or more battery cells; a fire extinguishing tank holding a fire extinguishing liquid, disposed on top of the battery module and having a through hole formed therein; and a cover member installed in the through hole of the fire extinguishing tank and configured to open or close the through hole according to a change in internal pressure of the fire extinguishing tank.

Abstract: A wearable device includes: a lens; a frame including a rim surrounding the lens and a temple extending from the rim; a reflection member altering a path of light incident from a side in front of the lens toward the lens; an image sensor collecting light reflected from the reflection member; and at least one camera lens disposed on a path of the light collected by the image sensor.

Abstract: A coil component includes a body, a support substrate disposed within the body, a coil disposed on at least one surface of the support substrate, and first and second external electrodes disposed to be spaced apart from each other on the body and connected to the coil. The coil unit includes a first conductive layer disposed on the support substrate, a second conductive layer disposed on the first conductive layer and spaced apart from the support substrate, and a third conductive layer disposed on the second conductive layer to cover at least a portion of a side surface of the second conductive layer and spaced apart from the support substrate to expose a side surface of the first conductive layer.

Abstract: A coil component includes a body, a support portion disposed in the body, a coil portion disposed on a first surface of the support portion, a lead portion disposed on a second surface of the support portion facing the first surface of the support portion and connected to the coil portion, and a via penetrating through the support portion to connect an inner end portion of the coil portion and an inner end portion of the lead portion to each other, wherein the coil portion includes a first conductive layer embedded in the support portion and having a first surface exposed to or facing the first surface of the support portion, a second conductive layer disposed on the first surface of the first conductive layer, and a third conductive layer disposed on the second conductive layer and protruding from the first surface of the support portion.

Abstract: A coil component includes a body, a support substrate disposed within the body, a lead portion disposed on a first surface of the support substrate, a first insulating layer disposed on the first surface of the support substrate to cover the lead portion, a coil unit including a plurality of turns disposed on the first insulating layer, a second insulating layer covering the coil unit, and first and second external electrodes spaced apart from each other on the body, and connected to the coil unit and the lead portion, respectively.

Abstract: Provided are an air purifier and an air conditioner including the same. The air purifier includes a ground electrode part, a discharge electrode, at least a pair of magnetic force generators, and a voltage generator. The ground electrode part has at least a pair of flat plates. The discharge electrode is located between the flat plates and separated from the flat plates. The at least a pair of magnetic force generators is provided to the flat plates, respectively, to generate a magnetic field and allow attractive force to be applied between the flat plates. The voltage generator applies a voltage between the ground electrode part and the discharge electrode.