JPS6230400U - - Google Patents
Info
- Publication number
- JPS6230400U JPS6230400U JP12025685U JP12025685U JPS6230400U JP S6230400 U JPS6230400 U JP S6230400U JP 12025685 U JP12025685 U JP 12025685U JP 12025685 U JP12025685 U JP 12025685U JP S6230400 U JPS6230400 U JP S6230400U
- Authority
- JP
- Japan
- Prior art keywords
- printed board
- printed
- outer periphery
- ground layer
- board
- 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
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
Description
第１図は本考案の実施例を示す図、第２図は従
来例の説明図である。
第１図において、２０はプリント板ユニツト、
２１は多層プリント板、２１―１，２１―４は信
号層、２１―２は電源層、２１―３はアース層、
２１―５は絶縁層、２１ａ，２１ｂはプリント板
２１の上・下端面、２１ｃ，２１ｄはプリント板
２１の前・後端面、２２，２９はスルーホール、
２３Ａは電子部品、２４，２５はシールドカバー
、２６はシエルフの金属ガイドレール、２７，２
８は帯状のアースパターン、Ｐはスルーホール２
９の所定間隔寸法（ピツチ）、をそれぞれ示す。
FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram of a conventional example. In FIG. 1, 20 is a printed board unit;
21 is a multilayer printed board, 21-1 and 21-4 are signal layers, 21-2 is a power layer, 21-3 is a ground layer,
21-5 is an insulating layer, 21a and 21b are upper and lower end surfaces of the printed board 21, 21c and 21d are front and rear end surfaces of the printed board 21, 22 and 29 are through holes,
23A is an electronic component, 24, 25 is a shield cover, 26 is a SHELF metal guide rail, 27, 2
8 is a strip-shaped ground pattern, P is a through hole 2
9 predetermined interval dimensions (pitch) are respectively shown.
Claims (1)
において、前記アース層２１―３をプリント板２
１の各端面２１ａ〜２１ｄに露出する状態に延在
配設し、 前記プリント板２１の両表面上に外周に沿う帯
状のアースパターン２７，２８をそれぞれ設け、 前記中間アース層２１―３及びアースパターン
２７，２８相互間を接続するスルーホール２９を
前記プリント板２１の外周に沿つて所定間隔でか
つ前記プリント板２１の表面と直交状に設けたこ
とを特徴とするプリント板ユニツトのアース回路
。[Claims for Utility Model Registration] Printed board 21 having intermediate ground layer 21-3
, the ground layer 21-3 is connected to the printed board 2.
strip-shaped grounding patterns 27 and 28 are provided on both surfaces of the printed board 21 along the outer periphery, respectively, so as to be exposed on each end surface 21a to 21d of the printed circuit board 21; A ground circuit for a printed board unit, characterized in that through holes 29 connecting patterns 27 and 28 are provided along the outer periphery of the printed board 21 at predetermined intervals and perpendicular to the surface of the printed board 21.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12025685U JPS6230400U (en) | 1985-08-07 | 1985-08-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12025685U JPS6230400U (en) | 1985-08-07 | 1985-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6230400U true JPS6230400U (en) | 1987-02-24 |
Family
ID=31008402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12025685U Pending JPS6230400U (en) | 1985-08-07 | 1985-08-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6230400U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06274246A (en) * | 1993-03-05 | 1994-09-30 | Internatl Business Mach Corp <Ibm> | Operation and manufacture for computer and printed circuit board |
| WO1998002025A1 (en) * | 1996-07-10 | 1998-01-15 | Hitachi, Ltd. | Low-emi circuit board and low-emi cable connector |
-
1985
- 1985-08-07 JP JP12025685U patent/JPS6230400U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06274246A (en) * | 1993-03-05 | 1994-09-30 | Internatl Business Mach Corp <Ibm> | Operation and manufacture for computer and printed circuit board |
| WO1998002025A1 (en) * | 1996-07-10 | 1998-01-15 | Hitachi, Ltd. | Low-emi circuit board and low-emi cable connector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6230400U (en) | ||
| JPH0241491U (en) | ||
| JPS6298254U (en) | ||
| JPH0430720U (en) | ||
| JPS59121175U (en) | terminal mounting device | |
| JPS6240896U (en) | ||
| JPH0312465U (en) | ||
| JPS6435775U (en) | ||
| JPS628692U (en) | ||
| JPS62178574U (en) | ||
| JPH0426566U (en) | ||
| JPS62178575U (en) | ||
| JPS5974760U (en) | Double-sided printed wiring body | |
| JPS61161969U (en) | ||
| JPS6232573U (en) | ||
| JPS5920675U (en) | Laminated structure of printed wiring board | |
| JPS61104585U (en) | ||
| JPH01110495U (en) | ||
| JPH03102757U (en) | ||
| JPH0233476U (en) | ||
| JPS6240873U (en) | ||
| JPS61125071U (en) | ||
| JPS61182063U (en) | ||
| JPH0229567U (en) | ||
| JPS6236580U (en) |