JP3002386B2 - PCB holding structure - Google Patents
PCB holding structureInfo
- Publication number
- JP3002386B2 JP3002386B2 JP6128262A JP12826294A JP3002386B2 JP 3002386 B2 JP3002386 B2 JP 3002386B2 JP 6128262 A JP6128262 A JP 6128262A JP 12826294 A JP12826294 A JP 12826294A JP 3002386 B2 JP3002386 B2 JP 3002386B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- printed circuit
- frame
- side plate
- holding structure
- 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.)
- Expired - Fee Related
Links
Landscapes
- Mounting Of Printed Circuit Boards And The Like (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、電子機器等のプリント
基板をシールドケースを兼ねた金属製の枠体に固定する
ための保持構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a holding structure for fixing a printed circuit board of an electronic device or the like to a metal frame also serving as a shield case.
【0002】[0002]
【従来の技術】一般的に高調波を取り扱う電子回路が形
成されたプリント基板を枠体内に装着するようにしたプ
リント基板の保持構造としては、例えば、枠体の側板及
びその枠体に内設されたシールド板等に複数の受け部や
舌片等を設けて置き、プリント基板を受け部に載置し、
プリント基板の方向に舌片を曲げることによってプリン
ト基板を係止し、さらにその舌片をプリント基板に設け
たアースパターンと半田付して保持する方法がとられて
いた。2. Description of the Related Art In general, a printed circuit board holding structure in which a printed circuit board on which an electronic circuit for handling harmonics is formed is mounted in a frame body includes, for example, a side plate of the frame body and an internal board. A plurality of receiving portions and tongue pieces are provided and placed on the shielded plate, etc., and the printed circuit board is placed on the receiving portion,
A method has been adopted in which the printed circuit board is locked by bending the tongue piece in the direction of the printed circuit board, and the tongue piece is further soldered to an earth pattern provided on the printed circuit board.
【0003】しかし、プリント基板上に形成された電子
回路のパターンとそれを搭載するセット機器等のマザー
ボード上に形成された電子回路のパターンとの接続は、
通常、プリント基板上に設けられた端子を枠体から突出
させて、その突出させた端子をセット機器等のマザーボ
ード上に形成された接続孔に挿通してプリント基板上の
パターンと半田付により行われる。このような電子機器
等の枠体はプリント基板に設けた端子を突出させるため
に少なくとも一側板がコ字状に切り欠かれていなければ
ならなかった。[0003] However, the connection between the pattern of the electronic circuit formed on the printed circuit board and the pattern of the electronic circuit formed on the motherboard of a set device or the like on which the pattern is mounted,
Normally, the terminals provided on the printed circuit board are projected from the frame body, and the projected terminals are inserted into connection holes formed on the motherboard of a set device or the like, and are soldered to the pattern on the printed circuit board by soldering. Will be In such a frame of an electronic device or the like, at least one side plate must be cut out in a U-shape in order to protrude a terminal provided on a printed circuit board.
【0004】しかしながら従来は、このように一側板が
コ字状に切り欠かれた枠体においても、前述同様のプリ
ント基板の保持構造を採用していたために、コ字状に切
り欠かれた箇所の一側板に舌片を設けることが困難であ
り、その箇所においては枠体にプリント基板を保持する
ことが十分にできなかった。このような、従来のプリン
ト基板の保持構造としては、図7及び図9に示すように
1bは上下を開口し少なくとも一側板をコ字状に切り欠
いた金属製の枠体、イは枠体1bの対向した2つの側板
にそれぞれ形成し、枠体1bをセット機器等のマザーボ
ードに立設し該マザーボード上のアースパターンと接続
するアース端子ロ及びハを有したアース部、2は枠体1
bに内設しコ字状に切り欠いた側板10と該側板10に
対向した他の側板11との間に設置されているシールド
板であり、そのシールド板2の縁端面2aには突設部2
bが形成されている。3はシールド板2の突設部2bに
対応して挿通される透孔を有したプリント基板であり、
そのプリント基板にはその透孔の周囲に半田付用のアー
スパターンを有し、その裏面の部品搭載面に端子7が設
けられている。4aは枠体1bの側板を切り欠いて形成
した舌片、4bは枠体1bの側板を切り欠いて形成した
(プリント基板3を受ける)段部を示す。この枠体1b
の側板に形成した舌片4aの位置とシールド板2の側縁
面2aの位置は所定の高さの位置になるように設置され
ていてプリント基板3を載置している。[0004] However, conventionally, even in a frame body in which one side plate is cut out in a U-shape, since a printed board holding structure similar to that described above is employed, a portion cut out in a U-shape is conventionally used. However, it was difficult to provide a tongue piece on one side plate, and it was not possible to sufficiently hold the printed board on the frame at that location. As shown in FIG. 7 and FIG. 9, 1b is a metal frame having upper and lower openings and at least one side plate cut out in a U-shape. 1b is formed on two opposite side plates, and a frame 1b is provided on a motherboard such as a set device, and an earth portion having earth terminals B and C for connecting to an earth pattern on the motherboard.
b is a shield plate installed between a side plate 10 cut in a U-shape and another side plate 11 facing the side plate 10 and protruding from an edge 2 a of the shield plate 2. Part 2
b is formed. Reference numeral 3 denotes a printed circuit board having a through hole that is inserted corresponding to the projecting portion 2b of the shield plate 2,
The printed circuit board has an earth pattern for soldering around the through hole, and a terminal 7 is provided on the component mounting surface on the back surface. Reference numeral 4a denotes a tongue formed by cutting the side plate of the frame 1b, and reference numeral 4b denotes a step formed by cutting the side plate of the frame 1b (receiving the printed circuit board 3). This frame 1b
The position of the tongue piece 4a formed on the side plate and the position of the side edge surface 2a of the shield plate 2 are set at a predetermined height, and the printed circuit board 3 is placed thereon.
【0005】次に、プリント基板3が枠体1bに内設さ
れて保持される方法について説明する。まず始めに、プ
リント基板3はその部品搭載面の一部が段部4bに載置
され、且つ、端子7がコ字状に切り欠いた側板10から
突出するように枠体1b内に装着するが、その際にプリ
ント基板3は該プリント基板3に形成されている透孔を
シールド板2の突設部2bに対応させ挿通させながらシ
ールド板2の縁端部2a及び枠体1bの段部4bに載置
する。そして、プリント基板3の保持は、図10に示す
ように舌片4aをプリント基板3に対して枠体1bの外
側より内側の方向に押し曲げることにより固定される。
次に、プリント基板3に押し曲げられた舌片4aはプリ
ント基板3上に設けられたアースパターンと半田15で
固着される。また、それと同時にプリント基板3の透孔
に挿通されたシールド板2の突設部2bもその先端近傍
が透孔の周囲に形成されたアースパターンと半田15で
固着される。尚、これらの半田付の方法としてはフロー
及びリフロー炉等を通して行うのが一般的である。Next, a method of holding the printed circuit board 3 in the frame 1b will be described. First, the printed circuit board 3 is mounted in the frame 1b such that a part of the component mounting surface is placed on the step 4b and the terminals 7 protrude from the side plate 10 cut out in a U-shape. However, at this time, the printed board 3 is inserted into the through hole formed in the printed board 3 so as to correspond to the projecting portion 2b of the shield plate 2 and the edge 2a of the shield plate 2 and the stepped portion of the frame 1b. 4b. Then, the holding of the printed circuit board 3 is fixed by pressing and bending the tongue piece 4a toward the printed circuit board 3 inward from the outside of the frame 1b as shown in FIG.
Next, the tongue piece 4a pressed and bent on the printed circuit board 3 is fixed to the ground pattern provided on the printed circuit board 3 with solder 15. At the same time, the protruding portion 2b of the shield plate 2 inserted into the through hole of the printed circuit board 3 is also fixed by solder 15 to the ground pattern formed around the through hole at the tip end. Incidentally, these soldering methods are generally carried out through a flow and reflow furnace or the like.
【0006】以上により電子回路が形成されたプリント
基板3は枠体1bに内設され枠体に保持される。そし
て、このプリント基板3を保持した枠体1bは、図示し
ないセット機器等のマザーボード上に立設され、マザー
ボード上に形成された電子回路パターン及びアースパタ
ーンと半田付される。The printed circuit board 3 on which the electronic circuit is formed as described above is provided inside the frame 1b and held by the frame. The frame 1b holding the printed board 3 is erected on a motherboard such as a set device (not shown) and soldered to an electronic circuit pattern and a ground pattern formed on the motherboard.
【0007】[0007]
【発明が解決しようとする課題】しかしながら、上述し
たこのような従来のプリント基板保持構造にあっては、
次のような問題があった。すなわち、枠体1bの一側板
をコ字状に切り欠いた側板10からプリント基板3に設
けた端子7を突出させた構造では、プリント基板3に設
けた端子7の本数が多くなる程、枠体1bの側板10の
横に沿ってコ字状に切り欠く長さが長くなってしまうの
で、その長さ分、枠体1bの側板10に舌片4aを設け
るスペースがなくなってしまう。However, in such a conventional printed circuit board holding structure as described above,
There were the following problems. That is, in the structure in which the terminal 7 provided on the printed board 3 is protruded from the side plate 10 in which one side plate of the frame 1b is cut out in a U-shape, as the number of the terminals 7 provided on the printed board 3 increases, the frame becomes larger. Since the length of the U-shaped cutout along the side of the side plate 10 of the body 1b becomes longer, there is no space for providing the tongue piece 4a on the side plate 10 of the frame 1b by that length.
【0008】例えば、従来例では側板10に設けること
ができる舌片4aの個数は図7及び図8に示すようにせ
いぜい1つ程度が限度であった。そのために、プリント
基板3が枠体1bに保持される保持力は該側板10側に
おいてはその側板10と対向した他の側板11より必然
的に極端に弱い構造となっていた。従って、シールド板
2の突設部2b及び舌片4aをプリント基板3に半田1
5で固着する時には、プリント基板3はフローの半田熱
及びその半田流力、リフローの熱及び温風力又はそれら
を炉に通すコンベア等の振動及び半田付時の熱によりプ
リント基板3が反ったりするのでこれらのことにより枠
体1bに固定した所定の位置から動いてしまう。そし
て、所定の位置から動いた位置に半田15で固着されて
しまうので、枠体1bのコ字状に切り欠かれた一側板1
0から突出された端子7は所定の位置からずれてしまう
という問題があった。もし、この端子7が所定の位置か
らずれたままの状態でこれをセット機器等のマザーボー
ドに取り付けようとした場合は、枠体1bのアース端子
ロ及びハがセット機器等のマザーボードに形成されてい
る取付孔に挿入されても、端子7はセット機器等のマザ
ーボード上に形成されている取付孔に入らなくなるので
取り付かなくなってしまう。又、これを無理にセット機
器等のマザーボードに押し込んだ場合には端子7が曲が
ったり、プリント基板3が破損したりする問題が発生す
るFor example, in the conventional example, the number of tongue pieces 4a that can be provided on the side plate 10 is limited to at most about one as shown in FIGS. Therefore, the holding force for holding the printed circuit board 3 on the frame 1b is necessarily extremely weak on the side plate 10 side than on the other side plate 11 facing the side plate 10. Therefore, the projecting portion 2b and the tongue piece 4a of the shield plate 2 are
When the printed circuit board 3 is fixed at 5, the printed circuit board 3 warps due to the solder heat of the flow and the solder flow force thereof, the heat of the reflow and the hot wind or the vibration of a conveyor or the like passing them through a furnace and the heat at the time of soldering. As a result, they move from a predetermined position fixed to the frame 1b. Then, since it is fixed to the position moved from the predetermined position by the solder 15, the one side plate 1 cut out in a U-shape of the frame 1b.
There is a problem that the terminal 7 protruding from 0 is shifted from a predetermined position. If the terminal 7 is to be mounted on a motherboard such as a set device while the terminal 7 is deviated from a predetermined position, the ground terminals B and C of the frame 1b are formed on the motherboard such as the set device. Even if the terminal 7 is inserted into the mounting hole, the terminal 7 does not enter the mounting hole formed on the motherboard of the set device or the like, so that the terminal 7 cannot be mounted. Further, if this is forcibly pushed into the motherboard of a set device or the like, there arises a problem that the terminal 7 is bent or the printed circuit board 3 is damaged.
【0009】この発明は、上述した諸問題を解決するた
めになされたもので有り、簡単な方法でプリント基板を
枠体内に確実に位置決めができて、且つ枠体に強固に保
持できるようなプリント基板の保持構造を提供すること
を目的とすることにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has been made in view of the above circumstances, and has been made in view of the above circumstances. An object of the present invention is to provide a substrate holding structure.
【0010】[0010]
【課題を解決するための手段】本発明によるプリント基
板の保持構造は、端部から端子が突出したプリント基板
と、複数の側板を有して上下が開口し、内部にプリント
基板を装着した金属製の枠体とを備え、 枠体の側板の少
なくとも一つは、両側に段部を持ち上方に開いたコ字状
の切欠部と、枠体の略板厚分の幅で段部の一部から枠体
の上方に伸びた爪とを有し、端子を枠体の切欠部から外
部に突出させてプリント基板を枠体の段部に載置し、プ
リント基板の上面と端面とで形成された稜に平行な折曲
線で折り曲げた枠体の爪と段部とによってプリント基板
を枠体に保持させたものである。SUMMARY OF THE INVENTION A printing base according to the present invention
The board holding structure is a printed circuit board with terminals protruding from the end
With multiple side plates, open up and down, print inside
And a metal frame fitted with a substrate, the side plates of the frame small
At least one is U-shaped with steps on both sides and open upwards
From the part of the step with the notch and the width of approximately the thickness of the frame
The terminal extends from the notch of the frame
The printed circuit board on the step of the frame
Fold parallel to the ridge formed by the top and end surfaces of the lint substrate
Printed circuit board by nails and steps of frame body bent by wire
Is held in a frame .
【0011】[0011]
【作用】上記技術的手段は次のように作用する。このよ
うな構成のプリント基板の保持構造においては、一側板
をコ字状に切り欠いた枠体から突出させたプリント基板
の一部を前記段部に載置し、枠体をコ字状に切り欠いた
その片側又は両側の縁端部に形成した爪でプリント基板
を固定することにより、プリント基板を枠体内に保持さ
せるようしたものである。The above technical means operates as follows. In the printed circuit board holding structure having such a configuration, a part of the printed circuit board having one side plate protruding from a frame body cut out in a U-shape is placed on the step portion, and the frame body is formed in a U-shape. The printed board is held in the frame by fixing the printed board with nails formed at one or both edges of the cutout.
【0012】[0012]
【実施例】本発明によるプリント基板の保持構造は、以
下、本発明の構成を図面に基づいて説明する。図1は本
発明の実施例によるプリント基板の保持構造を示した斜
視図であり、図2はその実施例による同プリント基板を
枠体内に装着し保持固定する方法の説明用図である。ま
た、図3〜図6は同実施例によるプリント基板の保持構
造の段部及び舌片の折り曲げを説明した断面図ならびに
要部拡大斜視図を示す。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a printed circuit board holding structure according to the present invention. FIG. 1 is a perspective view showing a printed circuit board holding structure according to an embodiment of the present invention, and FIG. 2 is an explanatory view of a method of mounting and holding and fixing the printed circuit board in a frame according to the embodiment. FIGS. 3 to 6 are a cross-sectional view and an enlarged perspective view of a main part of the printed circuit board holding structure according to the embodiment, in which the steps and the tongue pieces are bent.
【0013】これらの図において、従来例の構成と本発
明の図1〜図6の実施例の同一構成部分には同一符号を
付してその説明を省略する。そして、本発明である図1
〜図6の実施例が顕著に相違するところは、従来例の枠
体1bの一側板をコ字状に切り欠いた側板10におい
て、実施例では側板10をコ字状に切り欠いた両縁端部
の片側又は両側に切り込み形成した爪5aを枠体1bの
外側より内側に折り曲げてプリント基板3を強固に保持
するという構成を異としてることにある。このように、
一側板をコ字状に切り欠いた側板10に爪5aを形成し
た枠体を1aとした。その他の構成は従来例と同一であ
る。In these figures, the same reference numerals are given to the same components in the configuration of the conventional example and the embodiments of FIGS. 1 to 6 of the present invention, and the description thereof will be omitted. FIG.
6 is remarkably different from the conventional example in the side plate 10 in which one side plate of the frame 1b is cut out in a U-shape, and in the embodiment, both edges in which the side plate 10 is cut out in a U-shape. There is a difference in a configuration in which the claw 5a cut and formed on one or both sides of the end is bent inward from the outside of the frame 1b to hold the printed board 3 firmly. in this way,
A frame body in which a claw 5a was formed on a side plate 10 in which one side plate was cut out in a U-shape was designated as 1a. Other configurations are the same as the conventional example.
【0014】本発明において、爪5aは、図1に示すよ
うに、枠体1aの側板10をコ字状に切り欠き上方に開
いた切欠部の片側又は両側に、側板10の略板圧分の幅
で枠体の上方から切り込み形成された単純な長方形状を
している。そして、その爪5aを図4に示すように、枠
体1aの内側に折り曲げてプリント基板3に接触するま
で(図では約45度)曲げる。爪5aはその幅が略板厚
分であり細いので、折り曲げに対する抵抗力がそれ程大
きくないから、プリント基板3に過度の力がかかること
なく、プリント基板3の上面、即ち半田付面と端面とで
形成された稜に当接させて、曲げることができる。又、
このことによりプリント基板3に割れや反り等の破損は
起こらない。 [0014] In the present invention, the nail 5a, as shown in FIG. 1, open the missing-out upward off the side plate 10 in a U-shaped frame 1a
On one or both sides of the stomach notch, a simple rectangular shape which is formed narrowing cut from above the frame in a substantially plate pressure of the width of the side plate 10
Have . Then, as shown in FIG. 4, the claw 5a is bent inside the frame 1a and bent until it contacts the printed circuit board 3 (about 45 degrees in the figure) . The width of the nail 5a Waso is Ino Oh Ri fine substantially plate thickness amount, because the resistance force against the bending is not so large, without consuming excessive force to the printed circuit board 3, the upper surface of the printed circuit board 3, i.e. soldering Between the face and the end face
It can be bent by contacting the formed ridge . or,
This damage such as cracking or warp in the printed circuit board 3 occurs such have a.
【0015】[0015]
【発明の効果】以上説明してきたように、本発明によれ
ば、プリント基板を段部に載置し、枠体の側板をコ字状
に切り欠いた両縁端部の片側又は両側に形成した爪を内
方向に折り曲げることによってプリント基板を段部に押
しつけて保持することができるので、枠体をコ字状に切
り欠いていない側面に形成した舌片と相まってプリント
基板を枠体内に強固に押さえられて半田付の際に、プリ
ント基板の動きをなくすことができるという効果が得ら
れる。As described above, according to the present invention, the printed circuit board is placed on the stepped portion, and the side plate of the frame is formed on one or both sides of both edges of the U-shaped notch. The printed circuit board can be pressed and held against the step by bending the claw inward, so that the printed circuit board is firmly inserted into the frame body in combination with the tongue pieces formed on the side faces that are not notched in a U-shape. When soldering by pressing the printed circuit board, it is possible to obtain an effect that the movement of the printed circuit board can be eliminated.
【図1】本発明の実施例によるプリント基板の保持構造
を示した斜視図である。FIG. 1 is a perspective view showing a printed circuit board holding structure according to an embodiment of the present invention.
【図2】本発明の実施例による同プリント基板を枠体に
装着し保持する方法の説明用図である。FIG. 2 is an explanatory diagram of a method of mounting and holding the printed circuit board on a frame according to an embodiment of the present invention.
【図3】本発明の実施例による同プリント基板の保持構
造で図1及び図2のA−A’部の切断部を示した断面図
である。FIG. 3 is a cross-sectional view illustrating a cut portion taken along line AA ′ of FIGS. 1 and 2 in the printed circuit board holding structure according to the embodiment of the present invention.
【図4】本発明の実施例による同プリント基板の保持構
造で要部を示した要部拡大斜視図である。FIG. 4 is an enlarged perspective view of a main part showing the main part in the printed circuit board holding structure according to the embodiment of the present invention.
【図5】本発明の実施例による同プリント基板の保持構
造で図1及び図2のB−B’部の切断部を示した断面図
である。FIG. 5 is a cross-sectional view showing a cut portion taken along the line BB ′ of FIGS. 1 and 2 in the printed circuit board holding structure according to the embodiment of the present invention.
【図6】本発明の実施例による同プリント基板の保持構
造で要部を示した要部拡大斜視図である。FIG. 6 is an enlarged perspective view showing a main part of the printed circuit board holding structure according to the embodiment of the present invention.
【図7】従来例によるプリント基板の保持構造を示した
斜視図である。FIG. 7 is a perspective view showing a printed circuit board holding structure according to a conventional example.
【図8】従来例による同プリント基板を枠体に装着し保
持する方法の説明用図である。FIG. 8 is an explanatory diagram of a method of mounting and holding the same printed circuit board on a frame according to a conventional example.
【図9】従来例による同プリント基板の保持構造で要部
を示した要部拡大斜視図である。FIG. 9 is an enlarged perspective view of a main part showing a main part in the printed circuit board holding structure according to a conventional example.
【図10】従来例による同プリント基板の保持構造で図
7及び図8のC−C’部の切断部を示した断面図であ
る。FIG. 10 is a cross-sectional view showing a cut section taken along the line CC ′ of FIGS. 7 and 8 in the printed circuit board holding structure according to the conventional example.
1a 金属製の枠体 2 シールド板 3 プリント基板 4a 舌片 4b 段部 5a 爪 7 端子 10 金属製の枠体の開口側の側板 15 半田 Reference Signs List 1a Metal frame 2 Shield plate 3 Printed circuit board 4a Tongue piece 4b Step 5a Claw 7 Terminal 10 Opening side plate of metal frame 15 Solder
フロントページの続き (58)調査した分野(Int.Cl.7,DB名) H05K 7/04 H05K 7/14 H05K 9/00 Continuation of the front page (58) Field surveyed (Int.Cl. 7 , DB name) H05K 7/04 H05K 7/14 H05K 9/00
Claims (1)
と、複数の側板を有して上下が開口し、内部に前記プリ
ント基板を装着した金属製の枠体とを備え、 前記枠体の側板の少なくとも一つは、両側に段部を持ち
上方に開いたコ字状の切欠部と、前記枠体の略板厚分の
幅で前記段部の一部から枠体の上方に伸びた爪とを有
し、前記端子を前記枠体の切欠部から外部に突出させて
前記プリント基板を前記枠体の段部に載置し、前記プリ
ント基板の上面と端面とで形成された稜に平行な折曲線
で折り曲げた前記枠体の爪と段部とによって前記プリン
ト基板を枠体に保持 させたことを特徴とするプリント基
板の保持構造。1. A printed board in which terminals protruding from the end portion, upper and lower opened with a plurality of side plates, said pre therein
A metal frame on which a printed circuit board is mounted, and at least one of the side plates of the frame has a step on both sides.
A U-shaped notch opened upward, and a substantially plate thickness of the frame body
A claw extending from a part of the step portion to a position above the frame body in width;
Then, the terminal is projected outside from the cutout portion of the frame body.
Place the printed circuit board on the step of the frame, and
Curve parallel to the ridge formed by the top and end surfaces of the printed circuit board
The pudding by the claws and the steps of the frame body bent at
A printed circuit board holding structure, wherein the printed circuit board is held by a frame .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6128262A JP3002386B2 (en) | 1994-05-18 | 1994-05-18 | PCB holding structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6128262A JP3002386B2 (en) | 1994-05-18 | 1994-05-18 | PCB holding structure |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07312485A JPH07312485A (en) | 1995-11-28 |
JP3002386B2 true JP3002386B2 (en) | 2000-01-24 |
Family
ID=14980501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6128262A Expired - Fee Related JP3002386B2 (en) | 1994-05-18 | 1994-05-18 | PCB holding structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3002386B2 (en) |
-
1994
- 1994-05-18 JP JP6128262A patent/JP3002386B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH07312485A (en) | 1995-11-28 |
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