JPH0338920U

JPH0338920U -

Info

Publication number: JPH0338920U
Application number: JP1989099750U
Authority: JP
Priority date: 1989-08-26
Filing date: 1989-08-26
Publication date: 1991-04-15

Description

[Brief explanation of drawings]

第１図は本考案の３端子ノイズフイルタの回路
図、第２図は一実施例の３端子ノイズフイルタの
斜視図、第３図は第２図の３端子ノイズフイルタ
の断面図、第４図は３端子ノイズフイルタの他の
実施例を示す断面図、第５図は３端子ノイズフイ
ルタのさらに他の実施例を示す断面図、第６図は
３端子ノイズフイルタのさらに他の実施例を示す
断面図、第７図はアキシヤル型のインダクタの斜
視図、第８図は貫通型コンデンサの他の実施例を
示す断面図、第９図イ，ロ，ハ，ニは接続装置の
一実施例を示すもので同図イは接続装置の断面図
、同図ロは同一部を切り欠いて示した平面図、同
図ハは同図イにおけるＡ−Ａ線拡大断面図、同図
ニは同図ロにおけるＢ−Ｂ線拡大断面図、第１０
図は接続装置の他の実施例を示す断面図、第１１
図は接続装置のさらに他の実施例を示す断面図、
第１２図は接続装置のさらに他の実施例を示す断
面図、第１３図は３端子ノイズフイルタのさらに
他の実施例を示す断面図、第１４図は３端子ノイ
ズフイルタのさらに他の実施例を示す断面図、第
１５図は３端子ノイズフイルタのさらに他の実施
例を示す断面図、第１６図は一般的な３端子ノイ
ズフイルタの回路図、第１７図イ，ロは従来の３
端子ノイズフイルタの説明図である。Ｃ_１……貫通型コンデンサ、Ｌ_１，Ｌ_２……イ
ンダクタ、ａ……貫通型コンデンサの外面側電極
（中心リード）、ｂ……貫通型コンデンサの中心
側電極、３……リード、Ａ，Ｂ……フイルタ端子
、１１……Ｌ字形金属片、１２……コ字形金属片
、１３……コ字形金属片、１４……エ字形金属片
、１５……Ｚ字形金属片、２０，３７，３８，４
１……変換アダプタ（接続装置）、２１……ケー
ス、２２……第２コネクタ、２３……第１コネク
タ、２５……３端子ノイズフイルタ、３１……下
ケース、３２……上ケース、３２ｅ……突部、３
３……導電被覆、３９……信号ケーブル、４２…
…板ばね。 Fig. 1 is a circuit diagram of a 3-terminal noise filter of the present invention, Fig. 2 is a perspective view of a 3-terminal noise filter of an embodiment, Fig. 3 is a sectional view of the 3-terminal noise filter of Fig. 2, and Fig. 4. is a sectional view showing another embodiment of the 3-terminal noise filter, FIG. 5 is a sectional view showing still another embodiment of the 3-terminal noise filter, and FIG. 6 is a sectional view showing still another embodiment of the 3-terminal noise filter. 7 is a perspective view of an axial type inductor, FIG. 8 is a sectional view showing another embodiment of a feedthrough capacitor, and FIGS. 9 A, B, C, and D show an embodiment of a connecting device. Figure A is a cross-sectional view of the connecting device, Figure B is a partially cutaway plan view, Figure C is an enlarged sectional view taken along the line A-A in Figure A, and Figure D is a cross-sectional view of the connecting device. B-B line enlarged sectional view in B, No. 10
The figure is a sectional view showing another embodiment of the connecting device, No. 11.
The figure is a sectional view showing still another embodiment of the connecting device.
FIG. 12 is a sectional view showing still another embodiment of the connecting device, FIG. 13 is a sectional view showing still another embodiment of the 3-terminal noise filter, and FIG. 14 is a sectional view showing still another embodiment of the 3-terminal noise filter. 15 is a sectional view showing still another embodiment of the 3-terminal noise filter, FIG. 16 is a circuit diagram of a general 3-terminal noise filter, and FIG. 17 A and B are conventional 3-terminal noise filters.
FIG. 3 is an explanatory diagram of a terminal noise filter. _C1 ...Feedthrough capacitor, _L1 , _L2 ...Inductor, a...Outside electrode (center lead) of feedthrough capacitor, b...Center electrode of feedthrough capacitor, 3...Lead, A, B... Filter terminal, 11... L-shaped metal piece, 12... U-shaped metal piece, 13... U-shaped metal piece, 14... E-shaped metal piece, 15... Z-shaped metal piece, 20, 37, 38,4
1... Conversion adapter (connection device), 21... Case, 22... Second connector, 23... First connector, 25... 3-terminal noise filter, 31... Lower case, 32... Upper case, 32e ...protrusion, 3
3... Conductive coating, 39... Signal cable, 42...
...Leaf spring.

Claims

[Claims for Utility Model Registration] (1) Consisting of one feedthrough capacitor and two inductors connected to both sides of the center electrode of the feedthrough capacitor, the feedthrough capacitor has a shielding effect. An electrode on the outer surface is attached to one wall of the L-shaped metal piece in a penetrating state and electrically conductive to the L-shaped metal piece, and one of the two inductors is connected to the L-shaped metal piece. A three-terminal noise filter characterized by being arranged surrounded by two surfaces. (2) Consisting of one feedthrough capacitor and two inductors connected to both sides of the center electrode of the feedthrough capacitor, the feedthrough capacitor is composed of one opposing side of a U-shaped metal piece that has a shielding effect. The outer electrode is attached to the wall portion in a penetrating state and electrically conductive to the U-shaped metal piece, and one of the two inductors is surrounded by three sides of the U-shaped metal piece. A 3-terminal noise filter characterized in that it is arranged with (3) It consists of one feedthrough capacitor and two inductors connected to both sides of the center electrode of the feedthrough capacitor, and the feedthrough capacitor has a wall portion in the middle of a U-shaped metal piece that has a shielding effect. The outer surface electrode is attached to the U-shaped metal piece in an electrically conductive manner through the U-shaped metal piece, and one of the two inductors is surrounded by three sides of the U-shaped metal piece. A 3-terminal noise filter characterized by: (4) Consisting of one feedthrough capacitor and two inductors connected to both sides of the center electrode of the feedthrough capacitor, the feedthrough capacitor has a wall portion in the middle of an E-shaped metal piece that has a shielding effect. The outer surface electrode is electrically connected to the E-shaped metal piece and is attached to the E-shaped metal piece in a penetrating state, and the two inductors are attached to the three faces of the U-shaped portion and the inverted U-shaped portion of the E-shaped metal piece, respectively. A three-terminal noise filter characterized in that it is arranged surrounded by. (5) An electronic device comprising a first connector and a noise filter connected to the first connector, wherein the first connector is connected to one electronic device and the output side of the noise filter is connected to the other electronic device. A connection device for electrical connection between devices, characterized in that the three-terminal noise filter according to claim 1 is used as the noise filter. (6) A connection device characterized in that the three-terminal noise filter according to claim 2, 3, or 4 is used in place of the three-terminal noise filter in the connection device according to claim 5. (7) A connection device according to claim 5 or 6, characterized in that an inductor provided in advance on the first connector side is used as the inductor constituting the three-terminal noise filter. (8) The connecting device according to claim 5 or 6, characterized in that a second connector for connecting to the other electronic device is provided, and the output side of the three-terminal noise filter is connected to the second connector. Connection device. (9) In the connection device according to claim 5 or 6, the third
A connection device characterized by connecting a terminal noise filter. (10) The case housing the first connector and the 3-terminal noise filter is divided into two parts, an upper case and a lower case, and the U-shaped metal piece or the housing of the 3-terminal noise filter is attached to the upper case or the lower case. 7. The connection device according to claim 6, further comprising a spring that forms a protrusion that contacts the top surface of the U-shaped metal piece and presses the bottom surface of the U-shaped metal piece or the E-shaped metal piece against the lower case or upper case side. . (11) Consisting of one feedthrough capacitor and two inductors connected on both sides to the center electrode of the feedthrough capacitor, the feedthrough capacitor has a middle wall portion of a Z-shaped metal piece that has a shielding effect. The outer surface electrode is attached to the Z-shaped metal piece in an electrically conductive manner through the Z-shaped metal piece, and the two inductors are respectively surrounded by two surfaces of the L-shaped part of the Z-shaped metal piece. A 3-terminal noise filter characterized in that: (12) A 3-terminal noise filter comprising a plurality of 3-terminal noise filters according to claim 11, the Z-shaped metal pieces thereof being coupled together with their Z-shaped metal pieces arranged back to back. (13) A three-terminal noise filter characterized in that a plurality of three-terminal noise filters according to claim 11 are combined with their Z-shaped metal pieces arranged in the same direction. (14) A connection device characterized in that the three-terminal noise filter according to claim 11, 12, or 13 is used in place of the three-terminal noise filter in the connection device according to claim 5.