JPS609213U

JPS609213U - Nonlinear choke coil

Info

Publication number: JPS609213U
Application number: JP10005483U
Authority: JP
Inventors: 浜田　宗利; 和夫渡辺
Original assignee: 富士通株式会社
Priority date: 1983-06-30
Filing date: 1983-06-30
Publication date: 1985-01-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図から第９図は従来の平滑回路用チョークコイルを
説明するための図であり、第１図はチョークコイル１０
の斜視図、第２図は第１図の矢印Ａ方向から側面図、第
３図は第２図の矢印Ｃ方向からみた平面図、第４図は第
３図の一対のＥ型コア１１．１２の単体平面図、第５図
は第４図のＤ−Ｄ’線断面図、第６図は第３図のホビン
１３の単体面図（但し、一部切欠き断面にて図示）、第
７図は第６図の矢印Ｆ方向からみた側面図、第８図は第
１図のチョークコイル１０の直流重畳時におけるインダ
クタンスＬの特性線図、第９図は第１図のチョークコイ
ル１０の出力電圧特性線図、そして、第１０図から第１
８図は本考案の実施例を説明するための図であり、第１
０図は本考案の非線形チョークコイル２０の斜視図、第
１１図は第１０図の矢印Ｊ方向からみた側面図、第１２
図は第１１図の矢印に方向からみた平面図、第１３図は
第１０図の一対のＥ型コア２１．２２の単体平面図、第
１４図は第１３図の矢印Ｍ方向からみたＥ型コア２２の
側面図、第１５図は第１０図のＥ型コア２２と筒状磁性
体２５．２６の斜視図、第１６図は第１０図の非線形チ
ョークコイル２０における磁束の流れを示す図（但し、
要部のみ図示）、第１７図は第１０図の非線形チョーク
コイル２０の直流重畳時におけるインダクタンスし特性
曲線（点線）Ｐ２を従来例の特性曲線（実線）ｐｌと対
比して示す線図、第１８図は第１０図の非線形チョーク
コイル２０の出力電圧Ｖ。の特性曲線（点線）Ｑ２を従
来例の特性曲線（実線）Ｑｌと対比して示す線図である
。２０・・・・・・本考案の非線形チョークコイル、２１
゜２２・・・・・・Ｅ型コア、２１ａ、２２ａ・・・・
・・Ｅ型コアの中央脚、２１ｂ、　２１Ｃ，２２ｂ、　
２２Ｃ・・・・・・Ｅ型コアの外側脚、２１ｄ、　　２
１ｅ、　　２２ｄ、　　２２ｅ−・・・・・外側脚先端
部に形成した挿入部、２３・・・・・・ボビン、２４・
・・・・・巻線、２５．　２６・・・・・・筒状磁性体
、Ｇ・・・・・・両中央脚２１ａ、２２ａ先端相互間に
形成されたギャップ（空隙）。1 to 9 are diagrams for explaining conventional choke coils for smoothing circuits, and FIG. 1 shows a choke coil 10.
2 is a side view taken in the direction of arrow A in FIG. 1, FIG. 3 is a plan view taken in the direction of arrow C in FIG. 2, and FIG. 4 is a pair of E-shaped cores 11. 12, FIG. 5 is a sectional view taken along the line DD' in FIG. 4, FIG. 6 is a single side view of the hobbin 13 in FIG. 7 is a side view seen from the direction of arrow F in FIG. 6, FIG. 8 is a characteristic diagram of the inductance L of the choke coil 10 in FIG. 1 when DC is superimposed, and FIG. Output voltage characteristic diagram and Fig. 1 to 1
Figure 8 is a diagram for explaining an embodiment of the present invention, and the first
0 is a perspective view of the nonlinear choke coil 20 of the present invention, FIG. 11 is a side view seen from the direction of arrow J in FIG. 10, and FIG.
The figure is a plan view seen from the direction of the arrow in Fig. 11, Fig. 13 is a plan view of the pair of E-type cores 21 and 22 in Fig. 10, and Fig. 14 is an E-type seen from the direction of arrow M in Fig. 13. A side view of the core 22, FIG. 15 is a perspective view of the E-shaped core 22 and the cylindrical magnetic body 25, 26 of FIG. 10, and FIG. 16 is a diagram showing the flow of magnetic flux in the nonlinear choke coil 20 of FIG. however,
17 is a diagram showing the inductance characteristic curve (dotted line) P2 of the nonlinear choke coil 20 in FIG. FIG. 18 shows the output voltage V of the nonlinear choke coil 20 shown in FIG. FIG. 3 is a diagram showing a characteristic curve (dotted line) Q2 of the conventional example in comparison with a characteristic curve (solid line) Ql of the conventional example. 20...Nonlinear choke coil of the present invention, 21
゜22...E type core, 21a, 22a...
... Central leg of E-type core, 21b, 21C, 22b,
22C...Outside leg of E-type core, 21d, 2
1e, 22d, 22e--Insertion part formed at the tip of the outer leg, 23...Bobbin, 24-
...Winding wire, 25. 26... Cylindrical magnetic body, G... Gap (air gap) formed between the tips of both central legs 21a, 22a.

Claims

[Scope of utility model registration request]

A pair of E-shaped cores having a central leg and both outer legs are butted against each other with their legs abutting each other to form a gap between the tips of the lost legs in the rain. In a choke coil in which a pobbin is inserted, a cylindrical magnetic body having a magnetic permeability larger than that of the E-shaped core is inserted around the outer periphery of the tip abutting portion of each of the outer legs of the pair of E-shaped cores. A non-linear choke coil characterized by: