| 摘要 |
The invention provides a pressure switch, of which the pressure tolerance is enhanced without increase of cost and avoids upsizing with the enhanced pressure tolerance. In a diaphragm assembly of the pressure switch (20), a diaphragm group (20B) of the outer peripheral edge is on the board (20A) and a lower plate (20C) sandwiched, and the diaphragm group (20B) of part of the side, closer to the center than the outer peripheral edge, is supported on the O-ring. |
