To restrain breaking of wire of conduction wiring 27 due to crack of a flexible part 13.SOLUTION: A circuit board 3 includes a first rigid part 11 mounting a power system electronic component, a second rigid part 12 mounting a control system electronic component, and a thin flexible part 13 connecting them. The flexible part 13 includes multiple conduction wires 27 conducting the electronic components of the first and second rigid parts 11, 12. Along the felly 13a of the flexible part 13, a nonconductive metal pattern 33 is formed as a dummy pattern. By this nonconductive metal pattern 33, breaking of the conduction wires 27 due to crack is restrained.SELECTED DRAWING: Figure 6

    【課題】フレキシブル部13のクラックによる導通配線27の断線を抑制する。【解決手段】回路基板3は、パワー系電子部品を実装した第1リジッド部11と、制御系電子部品を実装した第2リジッド部12と、両者を接続した薄肉のフレキシブル部13と、を備える。フレキシブル部13は、第1,第2リジッド部11,12の電子部品に導通した複数の導通配線27を備える。フレキシブル部13の外縁13aに沿って、ダミーパターンである非導通金属パターン33が形成される。この非導通金属パターン33によって、クラックによる導通配線27の断線が抑制される。【選択図】図6


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    Title :

    ELECTRONIC CIRCUIT BOARD AND ELECTRONIC CIRCUIT DEVICE


    Additional title:

    電子回路基板および電子回路装置


    Contributors:

    Publication date :

    2019-07-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H05K PRINTED CIRCUITS , Gedruckte Schaltungen / B62D MOTOR VEHICLES , Motorfahrzeuge



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