Abstract: A transformer, according to one embodiment, includes a core unit, a first coil unit and a second coil unit, and a terminal bobbin coupled to one side of the second coil unit in a first direction, wherein the first coil unit includes a first coil and a first bobbin, wherein the second coil unit includes a second coil and a second bobbin, wherein the terminal bobbin includes a plurality of first terminals disposed on one side of the terminal bobbin that is oriented in the first direction, and an opening formed in another side opposite the one side in the first direction to allow one side of the second coil unit to be inserted thereinto, and wherein two end portions of the first coil are led out from the first bobbin and are respectively connected to different first terminals among the plurality of first terminals of the terminal bobbin.

Abstract: A magnetic element according to an embodiment of the present invention a first core, a second core, a bobbin including a through-hole, the bobbin being at least partially disposed between the first core and the second core, a first coil unit and a second coil unit at least partially disposed on the bobbin, wherein at least one of the first coil unit or the second coil unit includes a plurality of conductive wires disposed around the through-hole, wherein the bobbin includes a first portion formed to allow the first end portion and the second end portion of each of the plurality of conductive wires to be disposed thereon and a second portion formed opposite the first portion in a horizontal direction, with the through-hole interposed therebetween, and wherein portions of the plurality of conductive wires overlap each other vertically on the second portion.

Abstract: A transformer according to one embodiment of the present invention comprises: a core unit including an upper core and a lower core; a coil unit of which a portion is disposed in the core unit; and a bobbin unit disposed between the core unit and the coil unit, wherein the coil unit includes a first coil and a second coil of which at least a portion is disposed on the side surface of the first coil, the core unit includes a first outer foot part, a second outer foot part, and an intermediate foot part disposed between the first outer foot part and the second outer foot part, and the shortest distance between the first coil and the second coil can be 0.1 to 0.3 times the shortest distance between the outermost part of the first coil and an adjacent outer foot part from among the first outer foot part and the second outer foot part.

Abstract: A magnetic sheet according to an embodiment of the present invention comprises: a first soft magnetic layer including a first surface and a second surface opposite to the first surface; a first resin layer disposed on the first surface of the first soft magnetic layer and having a first viscosity; a second soft magnetic layer disposed on the first resin layer; and a second resin layer disposed between the first soft magnetic layer and the first resin layer and having a second viscosity different from the first viscosity, wherein the second resin layer comprises a plurality of magnetic particles, the first soft magnetic layer includes a plurality of crack areas propagated from the first surface toward the second surface, and a part of the second resin layer is disposed in the plurality of crack areas.

Abstract: A transformer according to one embodiment comprises: a core portion having an upper core and a lower core; and a coil portion disposed in the core portion, wherein: the coil portion includes a first coil wound in a first direction, a second coil wound in a second direction opposite to the first direction, and a third coil including a flat panel shape; the lower core includes a body portion, a first leg portion and a second leg portion protruding from the body portion, and a spacing portion formed between the first leg portion and the second leg portion; the first leg portion includes two first outer legs and a first intermediate leg disposed between the two first outer legs; the second leg portion includes two second outer legs and a second intermediate leg disposed between the two second outer legs; the first coil can be disposed to surround the first intermediate leg; and the second coil can be disposed to surround the second intermediate leg.

Abstract: An antenna module according to one embodiment of the present invention, comprises: a coil layer including a wound first coil; a shield layer disposed on the coil layer and including a plurality of sequentially stacked magnetic sheets; and a protection layer disposed on the shield layer, wherein the thickness of an edge of the shield layer is greater than the thickness of the center of the shield layer, and the total separation distance between the plurality of magnetic sheets at the edge of the shield layer is greater than the total separation distance between the plurality of magnetic sheets at the center of the shield layer.

Abstract: An embodiment discloses a heating rod comprising: a ceramic substrate; and a heat-radiating element that is arranged in the ceramic substrate, wherein the ratio of the thickness of the ceramic substrate to the thickness of the heat-radiating element is between 1:2 and 1:50. The embodiment discloses a heater comprising: a case; a heat-radiating module that is arranged inside the case; and a power module that is electrically connected to the heat-radiating module, wherein the power module includes a substrate part, a heat sink that is connected to the substrate part, and a ventilation part through which a fluid flows in and out to/from the heat sink.

Abstract: A magnetic sheet according to an embodiment of the present invention comprises: a first soft magnetic layer including a first surface and a second surface opposite to the first surface; a first resin layer disposed on the first surface of the first soft magnetic layer and having a first viscosity; a second soft magnetic layer disposed on the first resin layer; and a second resin layer disposed between the first soft magnetic layer and the first resin layer and having a second viscosity different from the first viscosity, wherein the second resin layer comprises a plurality of magnetic particles, the first soft magnetic layer includes a plurality of crack areas propagated from the first surface toward the second surface, and a part of the second resin layer is disposed in the plurality of crack areas.

Abstract: A magnetic coupling device is disclosed. The magnetic coupling device includes a core portion including an upper core and a lower core spaced apart from each other in a first direction, a primary coil and a secondary coil disposed between the upper core and the lower core in the state of being spaced apart from each other in the first direction, and a core connector electrically connected to the upper core and the lower core. A discharge phenomenon of a slim magnetic coupling device is prevented by the provision of the core connector.

Abstract: An antenna module according to one embodiment of the present invention, comprises: a coil layer including a wound first coil; a shield layer disposed on the coil layer and including a plurality of sequentially stacked magnetic sheets; and a protection layer disposed on the shield layer, wherein the thickness of an edge of the shield layer is greater than the thickness of the center of the shield layer, and the total separation distance between the plurality of magnetic sheets at the edge of the shield layer is greater than the total separation distance between the plurality of magnetic sheets at the center of the shield layer.

Abstract: An embodiment discloses a heating rod comprising: a ceramic substrate; and a heat-radiating element that is arranged in the ceramic substrate, wherein the ratio of the thickness of the ceramic substrate to the thickness of the heat-radiating element is between 1:2 and 1:50. The embodiment discloses a heater comprising: a case; a heat-radiating module that is arranged inside the case; and a power module that is electrically connected to the heat-radiating module, wherein the power module includes a substrate part, a heat sink that is connected to the substrate part, and a ventilation part through which a fluid flows in and out to/from the heat sink.

Abstract: The invention is directed to a high-density dispersion nuclear fuel having spherical particles of an uranium alloy dispersed in a nonfissionable matrix. The alloy includes uranium and 4-9 wt % Q, wherein Q is selected from the group consisting of Mo, Nb, and Zr. A process of manufacturing the spherical particles is also disclosed.