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1. (WO2018021085) CIRCUIT BOARD FIXATION STRUCTURE AND ELECTRICAL APPARATUS

Pub. No.:    WO/2018/021085    International Application No.:    PCT/JP2017/025876
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Wed Jul 19 01:59:59 CEST 2017
IPC: H05K 7/14
Applicants: SUMITOMO WIRING SYSTEMS, LTD.
住友電装株式会社
Inventors: CHAEN Satoru
茶園 悟
OGAWA Keiichi
小川 桂一
KOJIMA Hiroshi
小島 弘嗣
Title: CIRCUIT BOARD FIXATION STRUCTURE AND ELECTRICAL APPARATUS
Abstract:
A circuit board fixation structure 1 is provided with: a second small-diameter section (52) having a thread hole (52B) into which a screw (60) is threaded; a first small-diameter section (32) that has a greater inner diameter dimension than the outer diameter dimension of the second small-diameter section (52), and has a fitting hole (32B) externally fitted to the second small-diameter section (52); and a second large-diameter section (51) that is prevented from moving relative to the outer peripheral surface of the second small-diameter section (52), and has a greater outer diameter dimension than the second small-diameter section (52). The first small-diameter section (32) is provided, at one end, with a fixation section (33) against which a head (60A) of the screw (60) abuts in the state where the screw (60) has been threaded into the thread hole (52B) of the second small-diameter section (52), and the first small-diameter section (32) is provided, at the other end, with a first board pressing section (32A). A circuit board (13) has a board hole (13A) having an inner diameter dimension greater than the outer diameter dimension of the second small-diameter section (52) and smaller than the outer diameter dimension of the second large-diameter section (51). When passed through the board hole (13A), the second small-diameter section (52) is sandwiched and held between the first board pressing section (32A) of the first small-diameter section (32) and the second large-diameter section (51).