| 摘要 |
PROBLEM TO BE SOLVED: To restrain costs and cope with both insulation and shielding properties when composing a flameproof enclosure for electronic equipment. SOLUTION: In the electronic equipment having a power supply substrate 101 and the flameproof enclosure, the power supply substrate 101 is a substrate cut out of the substrate of a material. The electronic equipment further has a printed circuit board 105, which is a residual substrate cut out of the substrate of the material, and a printed circuit board having a first surface making continuity with metal and a second one insulated from metal. In the flameproof enclosures 105, 102, 103, the power supply substrate 101 is surrounded by metal members 102, 103 and the second surface of the printed circuit board 105, and the first surface of the printed circuit board 105 makes continuity with the first surface and the metal members 102, 103. COPYRIGHT: (C)2006,JPO&NCIPI
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