| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent having a magnetic air wall where the coupling coefficient drops due to the occurrence of the magnetic air wall in units of several mm between primary and secondary cores. SOLUTION: 1 shows a disc-like primary core 1, 2 shows a disc-like secondary core, the dotted line of a vertical axis shows the dimension in the height direction, the horizontal axial shows the radial dimension of the core, and C1 shows the radial dimension of the primary core. For the cores 1 and 2, only the cross section of the right half of the vertical axis is shown. The magnetic air wall between the primary and secondary cores is 1 mm, and the radial dimension of the primary coil is changed to check the change in the coupling coefficient. The thickness of the primary core and the secondary core are both 10 mm, and the diameter of the secondary core is 24 mm. The dimensions of the primary coil and the secondary coil are 36 mm in the inside diameter, 40 mm in the outside diameter, and 3 mm in the height of winding. By numerical value analysis, when a magnetic air wall exists in the magnetic circuit forming a magnetic path, the coupling coefficient between the primary and secondary cores can be made maximum by arranging them, so that the sectional areas of the facing cores are about 1:1 to 1:1.2.</p> |
