| 摘要 |
PURPOSE:To reduce effects of shrinkage and expansion of a printed board in a lighting apparatus in which a lamp is lighted by high frequency waves by means of an inverter by disposing component parts in a predetermined disposition. CONSTITUTION:At a printed board 3 which is fixed at a base 1 at one end by a fixing member and has a lamp holder 7 and a lighting circuit for applying a lighting voltage to a lamp 5 mounted, has a first connecter 82 provided at the fixed end for connecting the terminal of the holder 7. At the other end of the board 3 is provided a second connecter 81 for connecting the terminal of a composite part 6 including a power switch, a socket for a miniature lamp, and a terminal part of a power source integrated with each other, and the contacting surface of the connecter 81 with the terminal is disposed in parallel to a line connecting the connecters 82, 81. Even if shrinkage or expansion occurs in the printed board, the connecter 81 is fixed by a fixing member, and the contact surface of the connecter 82 is in the direction of the shrinkage or expansion, so effects of shrinkage or expansion are not given. A direct force is not applied to the terminals of the connecters 81, 82 as a result, thereby stress is not applied to a solder part of the terminals. |
