JPS6210390U

JPS6210390U -

Info

Publication number: JPS6210390U
Application number: JP10196985U
Authority: JP
Priority date: 1985-07-04
Filing date: 1985-07-04
Publication date: 1987-01-22

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例による高周波加熱装
置の要部断面図、第２図は同通風孔Ａの斜視図、
第３図は同高周波電源を用いられる回路図の一例
である。６……昇圧トランス、６ａ……１次側巻線、６
ｂ……高圧２次側巻線、６ｃ……低圧２次側巻線
、１０……周波数変換器、１３……マグネトロン
、２３……シールドケース、２３ａ……壁面、２
３ｂ……通風孔Ａ、２４，２５……磁性体、２８
……フアン。 FIG. 1 is a cross-sectional view of the main parts of a high-frequency heating device according to an embodiment of the present invention, and FIG. 2 is a perspective view of the ventilation hole A.
FIG. 3 is an example of a circuit diagram using the same high frequency power supply. 6...Step-up transformer, 6a...Primary winding, 6
b...High voltage secondary winding, 6c...Low voltage secondary winding, 10...Frequency converter, 13...Magnetron, 23...Shield case, 23a...Wall surface, 2
3b... Ventilation hole A, 24, 25... Magnetic material, 28
...Juan.

Claims

[Scope of utility model registration request]

A frequency converter 10 that operates at a frequency higher than the commercial frequency is connected to the primary winding 6a, and the high voltage secondary winding 6b is connected to the anode of the magnetron 13 via a rectifier circuit C. , a step-up transformer 6 that connects the low-voltage secondary winding 6c to the cathode of the magnetron 13, and a magnetic material 24 around which the primary winding 6a of the step-up transformer 6 is wound.
a shield case 23 that houses the rectifier circuit C and a magnetic body 25 that is positioned on the outside across the wall surface 23a and is electromagnetically coupled to the magnetic body 24 around which both the secondary windings 6b and 6c are wound; A high-frequency heating device comprising a fan 28 that cools the inside of the shield case 23 through a ventilation hole A23b formed in a convex shape so as to bulge on one side of the shield case 23.