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1. (WO2018037866) PROTECTIVE ELEMENT, CIRCUIT MODULE, AND PROTECTIVE ELEMENT PRODUCTION METHOD

Pub. No.:    WO/2018/037866    International Application No.:    PCT/JP2017/028090
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Thu Aug 03 01:59:59 CEST 2017
IPC: H01H 85/175
H01H 69/02
H01H 85/046
Applicants: DEXERIALS CORPORATION
デクセリアルズ株式会社
Inventors: KOMORI, Chisato
小森 千智
SAITOH, Takaharu
西東 孝晴
MUKAI, Koichi
向 幸市
YONEDA, Yoshihiro
米田 吉弘
Title: PROTECTIVE ELEMENT, CIRCUIT MODULE, AND PROTECTIVE ELEMENT PRODUCTION METHOD
Abstract:
With respect to a protective element having a space inside a cover and a circuit module wherein the protective element has been mounted, the objective of the invention is to prevent a decrease in the cover member adhesive strength caused by expansion of internal air so as to prevent damage to electronic components, and also prevent the influx of a sealing resin, a cleaning solution, or the like. The protective element comprises: an insulation base board (10); first and second electrodes (11, 12) provided on the insulation base board (10); a fusible conductor (13) disposed in such a manner as to bridge a gap between the first and second electrodes (11, 12); and a cover member (20) disposed on one surface (10a) side of the insulation base board (10) whereon the fusible conductor (13) has been placed. The internal space (25) wherein the fusible conductor 13 has been placed is provided with a vent hole (23) facing the exterior of the element, the vent hole (23) being sealed by a seal member (24).