JPH02123121U

JPH02123121U -

Info

Publication number: JPH02123121U
Application number: JP3108689U
Authority: JP
Priority date: 1989-03-17
Filing date: 1989-03-17
Publication date: 1990-10-09

Description

[Brief explanation of the drawing]

第１図ａは、本考案の実施例を示すノイズフイ
ルタの組立て斜視図、第１図ｂは、第１図ａにお
けるノイズフイルタの等価回路図。第２図は、第
１図ａにおけるノイズフイルタの分解斜視図で、
第２図ａはコの字形ピン端子の斜視図、第２図ｂ
は磁性コアの斜視図、第２図ｃはチツプコンデン
サの斜視図、第２図ｄはセラミツクコンデンサの
斜視図。第３図ａは、従来のノイズフイルタの組
立て斜視図、第３図ｂは第３図ａにおけるノイズ
フイルタの等価図回路。１…磁性コア、２…上面凹部、３，４，５，６
…貫通孔、７，８…コの字形ピン端子、９…前面
凹部、１０…凸部、１１…チツプコンデンサ、１
２…セラミツクコンデンサ、１３，１４…電極、
１５，１６…リード、１７，１８，１９，２０…
接続ピン、２１…円筒型コア、２２…ピン端子、
２３…ビーズインダクタ、２４…セラミツクコン
デンサ、２５…チツプコンデンサ、Ｌ_１，Ｌ_２…
インダクタンス、Ｃ_１，Ｃ_２，Ｃ_３，Ｃ_４…静電
容量。 FIG. 1a is an assembled perspective view of a noise filter showing an embodiment of the present invention, and FIG. 1b is an equivalent circuit diagram of the noise filter in FIG. 1a. FIG. 2 is an exploded perspective view of the noise filter in FIG. 1a,
Figure 2a is a perspective view of the U-shaped pin terminal, Figure 2b
2 is a perspective view of a magnetic core, FIG. 2c is a perspective view of a chip capacitor, and FIG. 2d is a perspective view of a ceramic capacitor. FIG. 3a is an assembled perspective view of a conventional noise filter, and FIG. 3b is an equivalent circuit diagram of the noise filter in FIG. 3a. 1...Magnetic core, 2...Top recess, 3, 4, 5, 6
...Through hole, 7, 8...U-shaped pin terminal, 9...Front recess, 10...Protrusion, 11...Chip capacitor, 1
2... Ceramic capacitor, 13, 14... Electrode,
15, 16... lead, 17, 18, 19, 20...
Connection pin, 21...Cylindrical core, 22...Pin terminal,
23 ...Bead inductor, 24...Ceramic capacitor, 25...Chip capacitor, _L1 , _L2 ...
Inductance, C ₁ , C ₂ , C ₃ , C ₄ . . . Capacitance.

Claims

[Scope of utility model registration request]

On the upper surface of the almost rectangular parallelepiped magnetic core, and on both front and rear surfaces, a rectangular upper surface recess along the sides of the surface, and a front recess,
4 holes that penetrate from the rear recess and the 4 corners of the upper recess to the bottom.
A convex portion is provided on the inside of the through hole on the bottom surface of the magnetic core, and a U-shaped pin terminal that commonly passes through the front and rear through holes is connected to the left and right through holes. After that, a chip capacitor is inserted into the upper recess, a ceramic capacitor is inserted into the front recess and the rear recess, and the external terminals of each capacitor are connected to the two U-shaped pin terminals. A noise filter characterized by comprising: