JPH01179623U

JPH01179623U -

Info

Publication number: JPH01179623U
Application number: JP7692288U
Authority: JP
Priority date: 1988-06-09
Filing date: 1988-06-09
Publication date: 1989-12-22

Description

[Brief explanation of the drawing]

第１図は、本考案によるチツプ型ノイズフイル
タの構成を示す斜視図。ａは部品構成を示す組立
斜視図、ｂは樹脂成型後の斜視図、ｃはライン端
子、アース端子の折り曲げ方向を示す斜視図。ｄ
は端子側の裏面図。第２図は、本考案によるチツ
プ型ノイズフイルタの他の構成を示す斜視図。ａ
は部品構成を示す組立斜視図、ｂは樹脂成型後の
斜視図、ｃはライン端子、アース端子の折り曲げ
方向を示す斜視図、ｄは端子側の裏面図、３図は
、従来のＴ型ノイズフイルタの構成を示す正面図
。第４図は、従来のＴ型ノイズフイルタを実装す
る印刷配線基板の要部を示す平面図。１ａ，１ｂ……高透磁率磁心（磁心）、２……
チツプコンデンサ、３ａ，３ｂ……チツプコンデ
ンサ電極、４……ライン電極用板状端子（ライン
端子）、５……アース電極用板状端子（アース端
子）、７……貫通孔、８……切り欠き、９……樹
脂モールド、１１……３端子コンデンサ、１２…
…接地端子、１３……信号ライン端子、１４……
ビーズコア、１５……印刷配線基板、１６……接
地導体、１７……ライン導体。 FIG. 1 is a perspective view showing the structure of a chip-type noise filter according to the present invention. A is an assembled perspective view showing the component configuration, b is a perspective view after resin molding, and c is a perspective view showing the bending direction of the line terminal and the ground terminal. d
is a back view of the terminal side. FIG. 2 is a perspective view showing another structure of the chip-type noise filter according to the present invention. a
is an assembled perspective view showing the component configuration, b is a perspective view after resin molding, c is a perspective view showing the bending direction of the line terminal and ground terminal, d is a back view of the terminal side, and Figure 3 is a conventional T-type noise FIG. 3 is a front view showing the configuration of a filter. FIG. 4 is a plan view showing the main parts of a printed wiring board on which a conventional T-type noise filter is mounted. 1a, 1b...High permeability magnetic core (magnetic core), 2...
Chip capacitor, 3a, 3b...Chip capacitor electrode, 4...Plate terminal for line electrode (line terminal), 5...Plate terminal for earth electrode (earth terminal), 7...Through hole, 8...Cut Notch, 9... Resin mold, 11... 3-terminal capacitor, 12...
...Ground terminal, 13...Signal line terminal, 14...
Bead core, 15... printed wiring board, 16... ground conductor, 17... line conductor.

Claims

[Scope of Claim for Utility Model Registration] (1) Two magnetic cores with a rectangular external shape with a high magnetic permeability characteristic and a through hole in the center, and a chip capacitor with an electrode provided in the direction of the through hole in the magnetic core. Then, insert a plate-shaped electrode terminal for connecting to one electrode of the chip capacitor and passing a signal from the through hole of one magnetic core to the through hole of the other magnetic core.
Connect the electrode plate terminal to the other electrode of the chip capacitor to form a T-shaped LC filter, mold the outside with electrically insulating resin, bend the electrode plate terminal on the molded surface, and create a surface mount type. A chip-type nozzle filter characterized by the following structure. (2) A notch is made in a part of the magnetic core with a high magnetic permeability characteristic that has a through hole in the center, a plate-shaped electrode terminal for passing signals is extended in a direction perpendicular to the direction of the through hole, and the outside is molded with electrically insulating resin. 2. The chip-type noise filter according to claim 1, wherein the terminal is placed along the resin molded surface after the above-described process is performed. (3) For the magnetic core with high magnetic permeability characteristics, use a ferrite core with high magnetic permeability characteristics, a metal ribbon-wound core, a powder magnetic core, or an amorphous ribbon-wound core, and use a solid type for the chip capacitor. The chip type noise filter according to claim 1, characterized in that it is constructed using a capacitor or a multilayer chip capacitor.