| 摘要 |
PROBLEM TO BE SOLVED: To provide constitution for preventing malfunction of a load, in spite of the arranging constitution of a wiring on a printed board when the board is under water or is wet. SOLUTION: A pair of load terminals are surrounded by the conduction pattern of a ground potential. Thus, the conduction pattern and the load terminals are shorted when a board is under water, current form a power terminal (+B) is made to flow to a ground terminal, current is prevented from flowing to the load, and malfunction is prevented. The conduction pattern of ground potential is installed near the load terminal (+) or the power terminal (+B). Thus, the load terminal (+) or the power terminal (+B) is shorted with the conduction pattern of ground potential, when the board is under water. A current from the power terminal (+B) is made to flow in the ground terminal, and a current is prevented from flowing to the load so as to prevent malfunctions. The conduction pattern, extended from the terminals (+) and (-) of the load, is installed, and the tip parts are installed mutually closely. |
