JPS6085806U - Choke coil for preventing induced noise in telephone lines - Google Patents

Choke coil for preventing induced noise in telephone lines

Info

Publication number
JPS6085806U
JPS6085806U JP17814883U JP17814883U JPS6085806U JP S6085806 U JPS6085806 U JP S6085806U JP 17814883 U JP17814883 U JP 17814883U JP 17814883 U JP17814883 U JP 17814883U JP S6085806 U JPS6085806 U JP S6085806U
Authority
JP
Japan
Prior art keywords
choke coil
telephone lines
induced noise
core
preventing induced
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP17814883U
Other languages
Japanese (ja)
Other versions
JPH058661Y2 (en
Inventor
菅谷　良博
雄一 村上
栗山　明海
島村　辰男
Original Assignee
株式会社トーキン
日本電信電話株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社トーキン, 日本電信電話株式会社 filed Critical 株式会社トーキン
Priority to JP17814883U priority Critical patent/JPS6085806U/en
Publication of JPS6085806U publication Critical patent/JPS6085806U/en
Application granted granted Critical
Publication of JPH058661Y2 publication Critical patent/JPH058661Y2/ja
Granted legal-status Critical Current

Links

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例を示す透視斜視図、第２図は
中波でのドラム形コアの溝幅とインピーダンスの周波数
特性図、第３図は第１図の実施例のインピーダンス特性
を示す図、第４図は本考案の他の実施例の透視斜視図で
ある。 １．２ニドラム形コア、３，４：巻線、５ニドラム形一
体コア、１１，２１，５１，５２：円環状溝、Ｗ：溝幅
、Ｈ：溝深さ。Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a frequency characteristic diagram of groove width and impedance of the drum-shaped core at medium waves, and Fig. 3 is an impedance characteristic of the embodiment of Fig. 1. FIG. 4 is a perspective view of another embodiment of the present invention. 1.2 two-drum core, 3, 4: winding, 5 two-drum integral core, 11, 21, 51, 52: annular groove, W: groove width, H: groove depth.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 棒状コアの外周に円環状溝を形成した複数個のドラム形
コアを軸方向に連接した形のコアと、該コアの外周の複
数の円環状溝に逐次バイファイラ巻きまたは分離巻きに
施された巻線とからなる電話回線の誘導雑音防止用チョ
ークコイル。A core in which a plurality of drum-shaped cores each having an annular groove formed on the outer periphery of a rod-like core are connected in the axial direction, and a winding that is successively bifilar-wound or separated on the plurality of annular grooves on the outer periphery of the core. Choke coil for preventing induced noise in telephone lines consisting of wires.
JP17814883U 1983-11-19 1983-11-19 Choke coil for preventing induced noise in telephone lines Granted JPS6085806U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17814883U JPS6085806U (en) 1983-11-19 1983-11-19 Choke coil for preventing induced noise in telephone lines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17814883U JPS6085806U (en) 1983-11-19 1983-11-19 Choke coil for preventing induced noise in telephone lines

Publications (2)

Publication Number Publication Date
JPS6085806U true JPS6085806U (en) 1985-06-13
JPH058661Y2 JPH058661Y2 (en) 1993-03-04

Family

ID=30386858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17814883U Granted JPS6085806U (en) 1983-11-19 1983-11-19 Choke coil for preventing induced noise in telephone lines

Country Status (1)

Country Link
JP (1) JPS6085806U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007180073A (en) * 2005-12-26 2007-07-12 Tdk Corp Filter element
JP2008300471A (en) * 2007-05-30 2008-12-11 Fdk Corp Choke coil

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491842U (en) * 1972-04-07 1974-01-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491842U (en) * 1972-04-07 1974-01-09

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007180073A (en) * 2005-12-26 2007-07-12 Tdk Corp Filter element
JP4525589B2 (en) * 2005-12-26 2010-08-18 Ｔｄｋ株式会社 Filter element
JP2008300471A (en) * 2007-05-30 2008-12-11 Fdk Corp Choke coil

Also Published As

Publication number Publication date
JPH058661Y2 (en) 1993-03-04

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