COMPLEX-TYPE ELECTRIC SHOCK PREVENTION DEVICE AND PORTABLE ELECTRONIC DEVICE HAVING SAME

WIPO Patent Application WO/2019/031738

A1

A complex-type electric shock prevention device and a portable electronic device having the same are provided. The complex-type electric shock prevention device, according to one embodiment of the present invention, comprises: a varistor unit including a plurality of varistor material layers, at least two first inner electrodes provided in any one varistor material layer, and at least one second inner electrode provided in another one varistor material layer; a capacitor unit including a plurality of dielectric sheet layers, and a plurality of capacitor electrodes provided on the respective dielectric sheet layers; a blocking layer arranged between the varistor unit and the capacitor unit; and a pair of external terminals provided on both sides of the varistor unit and the capacitor unit so as to be connected to the plurality of capacitor electrodes, the first inner electrodes, or the second inner electrode, wherein the varistor unit, the capacitor unit, and the blocking layer are stacked in a green sheet state so as to be simultaneously sintered, and the blocking layer has ZrO3 as a main component thereof and can be an insulator containing ZnO for the contraction rate control of the capacitor unit and the varistor unit.

CHOI JAE WOO (KR)
RYU JI HWANG (KR)
OH SUNG YOUP (KR)

PCT/KR2018/008470

February 14, 2019

July 26, 2018

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AMOTECH CO LTD (KR)

H01G4/40; H01C7/112; H01G4/12; H05K9/00

KR101760877B1	2017-07-24
KR20130033355A	2013-04-03
JPH0982568A	1997-03-28
KR101598644B1	2016-02-29
JPH06325979A	1994-11-25

ERUUM & LEEON INTELLECTUAL PROPERTY LAW FIRM (KR)

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