JPH0446569U - - Google Patents
Info
- Publication number
- JPH0446569U JPH0446569U JP8795090U JP8795090U JPH0446569U JP H0446569 U JPH0446569 U JP H0446569U JP 8795090 U JP8795090 U JP 8795090U JP 8795090 U JP8795090 U JP 8795090U JP H0446569 U JPH0446569 U JP H0446569U
- Authority
- JP
- Japan
- Prior art keywords
- printed circuit
- circuit board
- magnetic material
- noise filter
- annular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 2
- 239000000696 magnetic material Substances 0.000 claims 7
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 238000010304 firing Methods 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Coils Or Transformers For Communication (AREA)
- Filters And Equalizers (AREA)
- Parts Printed On Printed Circuit Boards (AREA)
Description
第１図、第２図はそれぞれこの考案の一実施例
の一方のプリント基板と他方のプリント基板の構
成を示す平面図、第３図はこの考案の一実施例を
示す断面図、第４図は第３図に示すノイズフイル
タの等価回路を示す接続図、第５図はこの考案の
第２の実施例を示す断面図、第６図はこの考案の
第３の実施例を示す断面図、第７図は従来のこの
種のノイズフイルタ付プリント基板の一例を示す
斜視図である。
１，２はプリント基板、１１，２１は導体パタ
ーン、１２，２２はスルーホール、１３，２３は
接合部、１４は環状の溝、１５ａ，１５ｂ，１５
ｃは環状磁性体、１６は接着剤、３は導電接着剤
、４ａ，４ｂ，４ｃはコンデンサである。なお、
各図中同一符号は同一または相当部分を示すもの
とする。
1 and 2 are plan views showing the configurations of one printed circuit board and the other printed circuit board of an embodiment of this invention, respectively, FIG. 3 is a sectional view showing an embodiment of this invention, and FIG. 4 is a connection diagram showing an equivalent circuit of the noise filter shown in FIG. 3, FIG. 5 is a sectional view showing a second embodiment of this invention, and FIG. 6 is a sectional view showing a third embodiment of this invention. FIG. 7 is a perspective view showing an example of a conventional printed circuit board with a noise filter of this type. 1 and 2 are printed circuit boards, 11 and 21 are conductor patterns, 12 and 22 are through holes, 13 and 23 are joint parts, 14 are annular grooves, 15a, 15b, 15
16 is an adhesive, 3 is a conductive adhesive, and 4a, 4b, and 4c are capacitors. In addition,
The same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
せて一体に形成し、一方のプリント基板に設けた
環状磁性体と、該プリント基板の裏面に配設した
複数の導体パターンと、他方のプリント基板の裏
面に配設した上記一方のプリント基板のスルホー
ルを介して上記複数の導体パターンと交互に直列
に接続した複数の導体パターンとによりチヨーク
コイルを形成し、このチヨークコイルと上記他方
のプリント基板表面に取り付けたコンデンサとで
構成したノイズフイルタを備えたことを特徴とす
るノイズフイルタ付プリント基板。 (2) 上記環状磁性体は、プリント基板に環状の
溝を設け、該溝内に粉末状磁性体を混入した樹脂
を充填して固化した環状磁性体であることを特徴
とする請求項第１項記載のノイズフイルタ付プリ
ント基板。 (3) 上記環状磁性体は、プリント基板上に粉末
状磁性体を混入した樹脂を環状に印刷して焼成し
た環状磁性体であることを特徴とする請求項第１
項記載のノイズフイルタ付プリント基板。[Claims for Utility Model Registration] (1) At least two printed circuit boards are bonded together and formed into one piece, with a ring-shaped magnetic body provided on one printed circuit board and a plurality of conductors arranged on the back surface of the printed circuit board. A chiyoke coil is formed by the pattern and a plurality of conductor patterns alternately connected in series with the plurality of conductor patterns through the through holes of the one printed circuit board arranged on the back side of the other printed circuit board. A printed circuit board with a noise filter, characterized in that it is equipped with a noise filter composed of a capacitor attached to the surface of the other printed circuit board. (2) Claim 1, characterized in that the annular magnetic material is an annular magnetic material obtained by providing an annular groove in a printed circuit board, filling the groove with resin mixed with powdered magnetic material, and solidifying the annular magnetic material. Printed circuit board with noise filter as described in section. (3) Claim 1, characterized in that the annular magnetic material is an annular magnetic material obtained by printing a resin mixed with a powdered magnetic material in an annular shape on a printed circuit board and firing it.
Printed circuit board with noise filter as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8795090U JPH0446569U (en) | 1990-08-24 | 1990-08-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8795090U JPH0446569U (en) | 1990-08-24 | 1990-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0446569U true JPH0446569U (en) | 1992-04-21 |
Family
ID=31820761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8795090U Pending JPH0446569U (en) | 1990-08-24 | 1990-08-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0446569U (en) |
-
1990
- 1990-08-24 JP JP8795090U patent/JPH0446569U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0446569U (en) | ||
| JPH0446570U (en) | ||
| JPS63167780U (en) | ||
| JPS6416668U (en) | ||
| JPS6380881U (en) | ||
| JPH02127064U (en) | ||
| JPH0396027U (en) | ||
| JPH03116067U (en) | ||
| JPH042073U (en) | ||
| JPH0379467U (en) | ||
| JPS6422072U (en) | ||
| JPS6379670U (en) | ||
| JPS611869U (en) | Printed circuit board with noise filter | |
| JPS61161969U (en) | ||
| JPH0426574U (en) | ||
| JPS6041069U (en) | Printed board | |
| JPH0282007U (en) | ||
| JPS61205168U (en) | ||
| JPS6447081U (en) | ||
| JPH0176072U (en) | ||
| JPH01133771U (en) | ||
| JPS6349230U (en) | ||
| JPH01118473U (en) | ||
| JPH0244310U (en) | ||
| JPH01139480U (en) |