| 摘要 |
A fluidic gas meter including a flow path structure (25) provided with a fluidic element, cut-off valve (15), pressure switch (16), flow sensor (14), piezoelectric film sensor (13) and an electronic circuit unit (17) is provided with a mother wiring board (8). The components (13, 14, 15, 16, 17) are provided with a plurality of terminals (13a, 14a, 15a, 16a, 17a) extending perpendicularly to wiring board (8) and inserted into respective through holes (9) of the board. To facilitate mounting of the terminals each through hole (9) communicates with a Vee shaped guide groove (10), the enlarged ends of the grooves (10) opening into apertures 11. Details of a connecting structure (12) including notched terminals and a holding member are given, figs 23A, B (not shown). Electronic circuit unit (17) includes a counter and control boards (19, 20) and LCD display (18), the latter having the display on one printed circuit electrically connected to a circuit carrying printed circuit by a flat cable or flexible printed board. <IMAGE> |
