| 摘要 |
PROBLEM TO BE SOLVED: To prevent a control board from being fraudulently remodeled through a gap of an opening to which a connector is fixed. SOLUTION: A board case 30 has a lid member 40 and a bottom member 50 in which a main control board 31 is housed. The lid member 40 has the opening 45 from which the connector 34 is exposed to the outside, and an erected wall part 46 is formed along the peripheral edge of the opening 45. A screen member 60 is disposed on the control board 31 between the control board 31 and the connector 34. The outer periphery M of the screen member 60 is formed larger than the peripheral edge L of the opening 45. The screen member 60 has a sealing wall part 66 formed so that the erected wall part 46 of the lid member 40 is fitted to the inner side. The screen member 60 has a through hole 65 into which all the connection pins 35 are inserted. The outer periphery N of the through hole 65 is formed smaller than the outer periphery S of the connector 34. The control board 31 in the board case 30 is not exposed to the outside from the opening 45 because of the screen member 60. COPYRIGHT: (C)2008,JPO&INPIT
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