JPS60177509U

JPS60177509U - Noise filter with socket

Info

Publication number: JPS60177509U
Application number: JP1984063079U
Authority: JP
Inventors: 公二石井; 博之植村; 晃中村; 憲昭佐藤; 秋野　直治; 佐々木　美津雄
Original assignee: ティーディーケイ株式会社
Priority date: 1984-05-01
Filing date: 1984-05-01
Publication date: 1985-11-26

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図は金属ケース内に直接通常のコンデンサを取り付
けた従来のノイズフィルタの構造を示す一平断面図、第
２図は内ケースに入出力端子を一体的に設は内ケース外
側に金属製外ケースを設けた従来のノイズフィルタを示
す平断面図、第３図は本考案に係るソケット付ノイズフ
ィルタの実施例　　　′であって電源入力用ソ扮ットに
内ケース本体を連結する状態を示す分解斜視図、第４図
はソケット　　　　。に内ケース本体を連結した構造にフィルタ素子を設ける
構成を示す分解斜視図、第５図はソケット内に内ケース
を連結しさらに外ケースを被せる構成を示す分解斜視図
、第６図は実施例の完成状態の構成を示す斜視図、第７
図は実施例の電気的接続関係を示す回路図、第８図は実
施例で用いた２連貫通コンデンサの分解斜視図、第９図
は２連貫通コンデンサに対し並列にライン間コンデンサ
を接続した場合の回路図、第１０図は第９図の回路。の場合に発生する並列共振によるリアクタンスの増加を
説明するためのグラフ、第１１図は第１０図で説明した
並列共振によるリアクタンスの増加を防止するための２
連貫通コンデンサの他の具体例を示す断面図、第１２図
はフェライトビーズが′ある場合とを比較した減衰量の
周波数特性を示すグラフである。１０・・・電源入力用ソケット、１２Ａ、１２Ｂ。１３・・・接触子、１５・・・内ケース本体、１９・・
・１体、２０・・・外ケース、３０・・・コモンモード
チョークコイル、３１・・・ライン間コンデンサ、４０
・・・２タ　　連貫通コンデンサ、４６・・・コンデン
サ基板、４８ｉ　　　Ａｔ４８Ｂ・・・電極、４４・・
・折曲部、４５・・・突片。 −周シ々数　　　、＼４２−−Figure 1 is a cross-sectional view showing the structure of a conventional noise filter in which an ordinary capacitor is installed directly inside the metal case. FIG. 3 is a cross-sectional plan view showing a conventional noise filter equipped with a case, and FIG. 3 is an embodiment of the noise filter with a socket according to the present invention, showing a state in which the inner case main body is connected to a power input socket. An exploded perspective view, Figure 4 shows the socket. FIG. 5 is an exploded perspective view showing a structure in which a filter element is provided in a structure in which an inner case body is connected to a socket, FIG. 5 is an exploded perspective view showing a structure in which an inner case is connected to a socket and an outer case is further covered, and FIG. A perspective view showing the configuration of the completed state, No. 7
The figure is a circuit diagram showing the electrical connection relationship of the example, Figure 8 is an exploded perspective view of the double feedthrough capacitor used in the example, and Figure 9 shows the line-to-line capacitor connected in parallel to the double feedthrough capacitor. The circuit diagram in this case, FIG. 10, is the circuit in FIG. Figure 11 is a graph for explaining the increase in reactance due to parallel resonance that occurs in the case of 2.
FIG. 12, which is a sectional view showing another specific example of a continuous feedthrough capacitor, is a graph showing the frequency characteristics of the attenuation compared with the case where ferrite beads are used. 10...Power input socket, 12A, 12B. 13... Contact, 15... Inner case body, 19...
・1 unit, 20...Outer case, 30...Common mode choke coil, 31...Line capacitor, 40
... 2 terminals continuous feedthrough capacitor, 46... Capacitor board, 48i At48B... Electrode, 44...
- Bent part, 45... projecting piece. -Shiza number, \42--

Claims

[Claims for Utility Model Registration] 1.(1) An inner case made of insulating resin is connected or integrated with the rear of the socket, a filter element is housed in the inner case, and two sets of electrodes are formed on one capacitor board. A noise filter with a socket, characterized in that a double feed-through capacitor is provided on the back surface of the inner case, and a metal outer case is placed to cover the rear part of the socket and the outer periphery of the inner case. (2) The external metal fitting of the double feed-through capacitor has a protruding piece that is fitted into the hole of the inner case; and the noise filter with a socket. −