| 摘要 |
PROBLEM TO BE SOLVED: To reinforce the ground of a printed wiring board through a metallic housing, by connecting electrically connectors with the ground pattern of the printed wiring board, and by making on the metallic housing build-up portions for connector insertions, and further, by inserting the build-up portions into the connectors of the printed wiring board to connect the build-up portions with the connectors. SOLUTION: On the solder surface side of a printed wiring board 1, an IC 2 and other parts 3 are mounted, and edge connectors 7, 8 are mounted on the arbitrary places of a ground (GND) pattern present on the opposite surface side to the solder surface of the printed board 1. Then, to the opposite surface side, a plate metal 6 is applied instead of a metallic housing. In the plate metal 6, a build-up portion 10a and build-up portions 10b are formed correspondingly to the place of a screwing hole 9 and the places of the edge connectors 7, 8. When putting the printed wiring board 1 on the plate metal 6, the vertical build-up portions 10b present on the plate metal 6 are inserted into the edge connectors 7, 8 to be connected electrically with them, and in the build-up portion 10a, a setscrew 5 is screwed through the screwing hole 9, and electrical connections are performed at the four corners of the board 1. |
