JPS63108223U

JPS63108223U -

Info

Publication number: JPS63108223U
Application number: JP20289886U
Authority: JP
Priority date: 1986-12-29
Filing date: 1986-12-29
Publication date: 1988-07-12

Description

[Brief explanation of drawings]

第１図は、この考案の実施例を示す電源用ノイ
ズフイルタの分解斜視図、第２図は、同フイルタ
の金属ケースを一部切り欠いた平面図、第３図は
、同フイルタの金属ケースを一部切り欠いた側面
図、第４図は、他の実施例を示す電源用ノイズフ
イルタの分解斜視図、第５図は、電源用ノイズフ
イルタの従来例を示す金属ケースを一部切り欠い
た斜視図である。２１……ベース板、２２……チヨークコイル、
２３……絶縁ケース、２４……捲線、２５……金
属ケース、２６，２７……コンデンサ、２８……
突起。 Fig. 1 is an exploded perspective view of a power supply noise filter showing an embodiment of this invention, Fig. 2 is a partially cutaway plan view of the metal case of the filter, and Fig. 3 is a metal case of the filter. Fig. 4 is an exploded perspective view of a power supply noise filter showing another embodiment, and Fig. 5 is a partially cutaway side view of a metal case showing a conventional example of a power supply noise filter. FIG. 21...Base plate, 22...Chiyoke coil,
23... Insulating case, 24... Winding wire, 25... Metal case, 26, 27... Capacitor, 28...
protrusion.

Claims

[Scope of utility model registration request]

A chiyoke coil 22 in which windings 24, 24 are provided around an insulating case 23 covering a ring-shaped core is fixed on the base plate 21, and the chiyoke coil 22 is fixed on the base plate 21.
2 are connected to capacitors 26, 27, 27 to form a filter circuit, and these chiyoke coils 22
and capacitors 26, 27, 27 in metal case 25
In the power supply noise filter housed in the
Winding wire 2 around an insulating case 23 with no partition in the center
4 and 24, a protrusion 28 whose distance between both ends corresponds to the inner diameter of the chiyoke coil 22 is erected on the base plate 21, and the protrusion 2
8, and the protrusion 2 is inserted between the windings 24, 24 on the inner circumferential side of the coil 22.
A noise filter for a power supply, characterized in that the above-mentioned chiyoke coil 22 is fixed by applying both ends of the noise filter.