| 摘要 |
An electrical junction box reduces the number of components to be contained in an electrical junction box and simplifies a structure of the box. The electrical junction box has a casing assembly including an upper casing and a lower casing. A laminated unit including bus bars and insulation plates is contained in the upper casing, while a first printed circuit board, a second printed circuit board and a spacer made of an insulation resin material are contained in the lower casing. The first printed circuit board is disposed on one side of the spacer, while the second printed circuit board is disposed on the other side of the spacer. Shorter size fixing bars and longer size fixing bars project from an inner surface on a top wall of the upper casing. The shorter size fixing bars penetrate the laminated unit, first printed circuit board and spacer. Screws are inserted upward into the shorter size fixing bars via through-holes in the spacer to secure the unit, first printed circuit board, and spacer to the shorter bars. Longer size fixing bars penetrate the laminated unit, first printed circuit board, spacer, second printed circuit board, and lower casing. Screws are inserted upward into the longer size fixing bars via through-holes in the lower casing to secure the unit, first and second printed circuit boards, spacer, and lower casing to the longer bars.
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