| 摘要 |
PURPOSE:To provide a printed substrate with an increased protection, by constituting an electronic oven and the like such that an insulating board for the prevention of scattering chips is secured to the underside of upper plate of mounting base fixing a high voltage transformer thereon in an U-shaped configuration, and the printed substrate mounting electronic components thereon is secured to a portion immediately below the insulation board in such a manner that the substrate is inserted through the side walls. CONSTITUTION:A fiber insulation board 14 is hooked to pawls 13 provided at four corners of the upper plate 5a of mounting base 5 laying a high voltage transformer thereon, whereas a printed substrate 6 is hooked to a side pawl 15 of high voltage transformer mounting base 5 for mounting the substrate 6 thereon. The substrate 6 is allowed to slide over a pawl 16 and then secured to a body by means of an attachement piece 17. Then, the transformer mounting base 5 is secured to the body by utilizing an attachment hole 22. This constitution can prevent a material from falling onto the printed substrate and protect the substrate from heat, and whereby providing the substrate an increased protection. |
