PRINTED BOARD, ELECTRONIC CONTROL APPARATUS AND INSPECTION METHOD OF PRINTED BOARD

摘要

A printed board includes an insulated base, a wiring pattern, and an inspection interrupting portion. The wiring pattern is disposed on a first surface of the insulated base, and includes a wiring portion, a land, and an interrupting portion disposed between the wiring portion and the land. The inspection interrupting portion is made of a same material with the interrupting portion and has a same pattern with the interrupting portion. In order to assure an interrupting performance of the interrupting portion, the inspection interrupting portion is inspected instead of the interrupting portion by applying an inspection current to the inspection interrupting portion.

主权项

1. A printed board comprising:
an insulated base having a first surface and a second surface opposite to the first surface; a wiring pattern disposed on the first surface of the insulated base, the wiring pattern including:
a wiring portion;a land on which an electronic component is soldered, the electronic component mounted on the land and the wiring pattern configuring a circuit; andan interrupting portion disposed between the wiring portion and the land, the interrupting portion electrically interrupts the wiring portion from the land by melting down under a heat generated by an overcurrent; and an inspection interrupting portion disposed on at least one of the first surface or the second surface of the insulated base, the inspection interrupting portion being made of a same material with the interrupting portion and having a same pattern with the interrupting portion, wherein, the interrupting portion has a width smaller than a width of a remaining portion that is other than the interrupting portion in the wiring pattern, and wherein, in order to assure an interrupting performance of the interrupting portion, the inspection interrupting portion is inspected instead of the interrupting portion by applying an inspection current to the inspection interrupting portion.