| 摘要 |
<p>PURPOSE:To prevent the cracking of a printed board even at a time when a drop shock or a vibrational shock are applied, and to ensure the reliability of a set by fitting and holding a fitting pawl into an opening hole formed to a pack cover when the pack cover is mounted. CONSTITUTION:A fly-back transformer 1 has fitting pawls 3 integrally formed from a main body, and a pair of the fitting pawls 3 are arranged in an axially symmetric shape. An opening hole 5, in which the fitting pawls 3 are caught, is formed to a pack cover 4 in a set. When the set is assembled, the pack cover 4 is inserted while the fitting pawls 3 of the fly-back transformer 1 are engaged. Accordingly, even when a drop shock and a vibrational shock are applied under a set state only by normal pack-cover mounting operation, a large quantity of force is not applied to a printed board, thus preventing cracking. When the pack cover is removed in maintenance service, etc., fitting can be released simply when the pack cover is gripped by fingers.</p> |
