JPS63200312U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of this invention, Fig. 2 is a front view thereof, Fig. 3 is a sectional view taken along the - line in Fig. 1, and Fig. 4 is a sectional view taken along the - line in Fig. 1. , Fig. 5 to Fig. 7 are diagrams showing a conventional external iron type transformer, and Fig. 5 is a plan view corresponding to Fig. 1;
Figure 6 is a sectional view taken along the - line in Figure 5;
The figure shows an enlarged plan view of the corner part of the iron core. Figures 8 and 9 show other conventional external iron type transformers. Figure 8 is a plan view of the inside, and Figure 9 is 8th
FIG. In the figure, 1 is a coil insulation group, 8 is an iron core, 8a is a leg iron core, 9 is a lower iron core, 10 is an upper iron core, 11
12a and 12b are iron cores, 13 and 14 are spacers, and 15 is an iron core that also serves as a lower shield. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In a transformer in which a magnetic shielding core is provided at the upper and lower parts of a leg core that penetrates the coil window, and the magnetic shielding core and a part of the outer core of the coil insulation group leg are magnetically connected, the magnetic shielding core is laminated with thin plates. An external iron type transformer characterized in that the direction is the same as the lamination direction of the leg cores.