JPS5996921U

JPS5996921U - noise filter

Info

Publication number: JPS5996921U
Application number: JP19234582U
Authority: JP
Inventors: 秀俊山本
Original assignee: 株式会社村田製作所
Priority date: 1982-12-20
Filing date: 1982-12-20
Publication date: 1984-06-30
Also published as: JPH0218587Y2

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 drawings]

第１図は高周波におけるコンデンサの等価回路図、第２
図は４端子コンデンサの回路図、第３図は本考案に係る
ノイズフイ・ルタの一部断面斜視図、第４図は第３図の
、ノイズフィルタのグランドプレート部分の詳細を示す
斜視図、第５図はグランド　　　゛プレートの斜視図、
第６−は第３図のノイズフィルタの等価回路図、第７図
Ｃｔ挿入損失特性の説明図である。６１１・・・チップコンデンサ、ｌｌａ、ｌｌｂ・・・
電極、１２．１３・・・導線、１４．　１５．　１６．
　１７・・・フェライトビーズ、１８・・・グランドプ
レート、１９・・・貫通コンデンサ、２０・・・シール
ド板、２１゜２２、　２３．　２４・・・孔、２６．２
７・・・ア」ス端子。Figure 1 is an equivalent circuit diagram of a capacitor at high frequencies, Figure 2
The figure shows a circuit diagram of a four-terminal capacitor, FIG. 3 is a partially cross-sectional perspective view of a noise filter according to the present invention, and FIG. 4 is a perspective view showing details of the ground plate portion of the noise filter in FIG. Figure 5 is a perspective view of the gland plate.
6- is an equivalent circuit diagram of the noise filter of FIG. 3, and FIG. 7 is an explanatory diagram of Ct insertion loss characteristics. 611...Chip capacitor, lla, llb...
Electrode, 12.13... Conductor wire, 14. 15. 16.
17... Ferrite bead, 18... Ground plate, 19... Feedthrough capacitor, 20... Shield plate, 21°22, 23. 24...hole, 26.2
7...A" terminal.

Claims

[Scope of utility model registration request]

(1) In a four-terminal capacitor in which the electrodes of the capacitor are connected in the middle of a pair of conductive wires on the hot side and the ground side, each of the pair of conductive wires is curved so that each of the pair of conductive wires protrudes to the same side with respect to the capacitor. Forming the legs on the input side and the legs on each output side 1. At least one of these legs is fitted with a cylindrical ferrite bead made of a high magnetic permeability material, and a hole is formed in the ground plate made of a metal plate. The leg of the conductor is passed through from one side of the ground plate to the other side, and a shield plate is electrically conductively attached between the leg on the input side and the leg on the output side on the other side of the ground plate. noise filter.

(2) The leg of the ground side conductor of the pair of conductors is directly connected to the ground plate, and at least one leg of the hot side conductor is provided with a feedthrough capacitor. The noise filter described in item 1.