| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a high-voltage generating device where soldered parts are protected against cracking, and electronic parts are kept free from the thermal effect of a step-up transformer by a method wherein a contact seal and a partition are provided in a part of a case where a printed board comes into contact, and a resin-filled chamber is separated from a resin non-filled chamber by the partition. SOLUTION: The case 10 of a high-voltage generating device is composed of two chambers, a resin-filled chamber 14 and a resin non-filled chamber 16. The two chambers 14 and 16 are possessed of partitions 60 and 61 respectively, and an empty space 80 small in heat conductivity is provided between the partitions 60 and 61. The chambers 14 and 16 are separated by the plane of a printed board 20 mounted with all electronic parts 30 including a step-up transformer 40 and the edge faces of the partitions 60 and 61. At this point, bodies of high heat release value such as the step-up transformer 40 and the like are arranged in the resin-filled chamber 14, and the electronic parts 30 of low heat release value are disposed in the resin non-filled chamber 16. Three contact seals 70 and a fixing rib 90 formed in one piece with the case 10 are provided in the upper edge face of the partition 60.</p> |
