JP2004079975A - Printed board mounting screw - Google Patents

Printed board mounting screw Download PDF

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Publication number
JP2004079975A
JP2004079975A JP2002242195A JP2002242195A JP2004079975A JP 2004079975 A JP2004079975 A JP 2004079975A JP 2002242195 A JP2002242195 A JP 2002242195A JP 2002242195 A JP2002242195 A JP 2002242195A JP 2004079975 A JP2004079975 A JP 2004079975A
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JP
Japan
Prior art keywords
screw
circuit board
printed circuit
flange
film
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
Application number
JP2002242195A
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Japanese (ja)
Inventor
Akihiko Hayashi
林　顕彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mac Eight Co Ltd
Original Assignee
Mac Eight Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mac Eight Co Ltd filed Critical Mac Eight Co Ltd
Priority to JP2002242195A priority Critical patent/JP2004079975A/en
Publication of JP2004079975A publication Critical patent/JP2004079975A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]
    • H05K1/184—Components including terminals inserted in holes through the printed circuit board and connected to printed contacts on the walls of the holes or at the edges thereof or protruding over or into the holes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/3447—Lead-in-hole components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227—Other objects, e.g. metallic pieces
    • H05K2201/10409—Screws
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10431—Details of mounted components
    • H05K2201/10583—Cylindrically shaped component; Fixing means therefore
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/20—Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
    • H05K2201/209—Auto-mechanical connection between a component and a PCB or between two PCBs

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
  • Combinations Of Printed Boards (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that automatic mounting is not feasible as displacement can occur in soldering while workability is low as caulking tool is used if an eyelet is used, related to a fixing or connecting nut to mount a printed board. <P>SOLUTION: A screw body 1 comprises a tube 11 with a female screw 11a formed in such an outer diameter as can be inserted in a through hole P<SB>1</SB>of a printed board P, and a flange 12 which is formed at one end of the tube part and is soldered to a conductive pattern D of the printed board. A film 2 is formed in such a size as to stop the female screw of the flange, and peelably bonded to the flange part. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明はプリント基板に固定し、他のプリント基板とを重ねる時に使用し、あるいは、アース用のリード線や信号線を導電パターンに接続する時などに使用するネジに関する。
【０００２】
【従来の技術】
従来、前記したような用途に使用するネジの一例としては、図４に示すようにプリント基板Ｐのネジを取付けるスルーホールＰ１　に形成された導電パターンＤにナットＮを半田Ｓによって固定したものがあった。
【０００３】
また、他の例としては、図５に示すように内部にネジが形成されたハトメ部材Ｈ（一端に鍔部Ｈ１　が形成され内部にネジが形成された筒部Ｈ２　とからなる金属管）を導電パターンＤに形成されたスルーホールＰ１　内に挿入し、次いで、カシメ具を用いてネジが形成された鍔部とは反対側の筒部の先端をスルーホールの外側に向かって拡開して固定したものもあった。
【０００４】
【発明が解決しようとする課題】
ところで、前記したナットを半田付けによってプリント基板に取付けた場合には、半田付け時においてナットが導電パターンから移動してしまい位置ズレが生じ、この位置ズレによってナットがスルーホールを塞いでしまうといった問題があると共に、半田付けという手間がかかってしまうという問題があった。
【０００５】
また、ハトメによる場合には、前記した位置ズレという問題は解決することはできるが、カシメ具を使用しての作業となるため作業性の点で問題があり、さらに、ナットの半田付けをも含めてプリント基板への自動実装が不可能であるといった問題があった。
【０００６】
本発明は前記した問題点を解決せんとするもので、その目的とするところは、プリント基板への部品自動実装装置を使用しての実装が可能であると共に、スルーホールに対して実装することから位置ズレが生じることがなく、また、自動半田装置による半田付けにおいて半田がネジ孔内に入り込むことがないプリント基板実装用ネジを提供せんとするにある。
【０００７】
【課題を解決するための手段】
本発明のプリント基板実装用ネジは前記した目的を達成せんとするもので、その手段は、外径がプリント基板のスルーホールに嵌入可能な外径に形成された雌ネジを有する筒部および該筒部の一端に形成されプリント基板の導電パターンに半田付けされる鍔部とからなるネジ本体と、前記鍔部の前記雌ネジを塞ぐ大きさに形成され、かつ、鍔部に対して剥離可能に接着されたフィルムとを具備したものである。
【０００８】
また、前記フィルムをリフロー炉による半田付け時の温度に耐え得る耐熱性の樹脂フィルムとしたことである。
【０００９】
【発明の実施の形態】
以下、本発明に係るプリント基板実装用ネジの実施の形態を図１〜図３と共に説明する。
１は半田付け可能な銅や黄銅等の金属材で構成したネジ本体にして、内面に雌ネジ１１ａが形成された筒部１１と、該筒部１１の一端に一体的に形成された鍔部１２とから構成されている。
【００１０】
そして、筒部１１の外径はプリント基板Ｐに形成されているスルーホールＰ１　に嵌挿できる大きさであり、また、長さはプリント基板Ｐの厚みと略同じ程度に形成されている。
【００１１】
２はリフロー炉による半田付けしても剥離や変形することのない耐熱性の樹脂（例えば、カプトン）であるフィルムにして、外径寸法が前記雌ネジ１１ｂの外径より大きく前記鍔部１２の外径よりも小さなものである。そして、このフィルムの片面には両面接着剤や接着剤が形成され、前記鍔部１２にはみ出さないように接着固定されている。
【００１２】
なお、ネジ本体１はプリント基板Ｐへの実装時にはキャリアテープの長手方向に沿ってストックされた状態でプリント基板Ｐが搬送されてくるコンベアの近傍に配置されているものとする。
【００１３】
次に、前記した本発明のネジ本体１を使用してプリント基板Ｐに実装する方法について説明する。
プリント基板Ｐがコンベアによって搬送されてくると、キャリアテープにストックされているネジ本体１が部品自動実装装置によって鍔部１２に貼着されているフィルム２の部分が吸着され、プリント基板Ｐの所定の位置のスルーホール１１ａ内に筒部１１が挿入される。
【００１４】
このようにネジ本体１がスルーホールＰ１　に挿入されたプリント基板Ｐは、次の工程であるリフロー炉に搬送されるので、該リフロー炉においてネジ本体１の鍔部１２は導電パターンＤに半田付け固定される。この半田付け時において、フィルム２は鍔部１２に取付けられた状態を維持しているので、半田が雌ネジ１１ａ内に入り込むことがなく、後の雄ネジ螺合時にねじ込みができないといった不都合は生じないものである。
【００１５】
そして、ネジ本体１が取付けられたプリント基板Ｐに雄ネジを螺合して他の基板を積層したり、アース線や信号線を取付ける際には、雌ネジ１１ａ側からピン等でフィルム２を押し上げることにより、該フィルム２は鍔部１２から剥離して雌ネジ１１ａが貫通することとなるので、雄ネジの螺合が可能となる。
【００１６】
【発明の効果】
本発明は前記したように、雌ネジが形成された筒体と一体的に形成された鍔部にフィルムを貼着して雌ネジを塞いだので、プリント基板への部品自動実装装置を使用してのスルーホールに対して実装が可能となり、従って、自動化によりネジ本体のプリント基板への取付けに行えると共に位置ズレが発生することがないものである。
【００１７】
また、フィルムをリフロー炉による半田付け時の温度に耐え得る耐熱性の樹脂フィルムとすることで、リフロー炉による半田付けにおいて半田がネジ孔内に入り込むことがなく、雄ネジ螺合時にねじ込みができないといった不都合が生じることがない等の効果を有するものである。
【図面の簡単な説明】
【図１】本発明に係るプリント基板実装用ネジの一実施の形態を示す斜視図である。
【図２】同上の縦断面図である。
【図３】プリント基板に取付けた状態のプリント基板を断面した断面図である。
【図４】従来のネジ取付け状態の一例を示す断面図である。
【図５】他の従来例のネジ取付け状態を示す断面図である。
【符号の説明】
１　　　　　ネジ本体
１１　　　　筒部
１１ａ　　　雌ネジ
１２　　　　鍔部
２　　　　　フィルム[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a screw which is fixed to a printed circuit board and used when overlapping another printed circuit board, or used when connecting a ground lead or signal line to a conductive pattern.
[0002]
[Prior art]
Conventionally, as an example of a screw to be used in applications as described above, those with a fixed nut N by the solder S to the printed circuit board conductive pattern D formed in the through hole P 1 mounting the screws P as shown in FIG. 4 was there.
[0003]
As another example, a metal tube made inside the screw is flanged portion H 1 is formed in the eyelet H (one end which is formed a screw therein forming a cylinder portion H 2 Metropolitan as shown in FIG. 5 ) was inserted into the inside conductive pattern through hole P 1 formed in D, then expanding toward the front end of the cylindrical portion of the opposite outside of the through hole and the flange portion screw is formed with a caulking tool Some were opened and fixed.
[0004]
[Problems to be solved by the invention]
By the way, when the above-mentioned nut is attached to a printed circuit board by soldering, the nut moves from the conductive pattern during soldering, causing a positional shift, and the positional shift causes the nut to block the through hole. In addition, there is a problem that the work of soldering is required.
[0005]
In the case of eyelets, the above-described problem of positional deviation can be solved, but there is a problem in workability because the operation is performed using a caulking tool. There has been a problem that automatic mounting on a printed circuit board is impossible.
[0006]
An object of the present invention is to solve the above-described problems, and an object of the present invention is to enable mounting using a component automatic mounting apparatus on a printed circuit board and mount the through-hole. An object of the present invention is to provide a printed circuit board mounting screw which does not cause a positional shift from the above and does not allow solder to enter a screw hole during soldering by an automatic soldering device.
[0007]
[Means for Solving the Problems]
The printed board mounting screw of the present invention does not achieve the above-mentioned object, and the means includes a cylindrical portion having a female screw formed to have an outer diameter that can be fitted into a through hole of the printed board, and A screw body formed at one end of the cylindrical portion and having a flange portion soldered to a conductive pattern on a printed circuit board; formed in a size to close the female screw of the flange portion, and capable of being peeled off from the flange portion And a film adhered to the substrate.
[0008]
Further, the film is a heat-resistant resin film that can withstand the temperature during soldering in a reflow furnace.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of a screw for mounting a printed circuit board according to the present invention will be described below with reference to FIGS.
Reference numeral 1 denotes a screw main body made of a metal material such as copper or brass that can be soldered, a cylindrical portion 11 having an internal thread 11a formed on an inner surface thereof, and a flange portion integrally formed at one end of the cylindrical portion 11. 12.
[0010]
The outer diameter of the cylindrical portion 11 is large enough to fitted into the through hole P 1 formed on the printed board P, The length is formed to a degree substantially identical to the thickness of the printed board P.
[0011]
Reference numeral 2 denotes a film made of a heat-resistant resin (for example, Kapton) that does not peel or deform even when soldered by a reflow furnace, and has an outer diameter larger than the outer diameter of the female screw 11b. It is smaller than the outer diameter. Then, a double-sided adhesive or an adhesive is formed on one side of the film, and is adhered and fixed so as not to protrude into the flange portion 12.
[0012]
When the screw body 1 is mounted on the printed circuit board P, it is assumed that the screw body 1 is arranged in the vicinity of a conveyor to which the printed circuit board P is conveyed while being stocked along the longitudinal direction of the carrier tape.
[0013]
Next, a method of mounting on the printed circuit board P using the screw body 1 of the present invention will be described.
When the printed circuit board P is conveyed by the conveyor, the screw body 1 stocked in the carrier tape is sucked by the automatic component mounting apparatus so that the portion of the film 2 adhered to the flange portion 12 is attracted to the printed circuit board P. The cylindrical portion 11 is inserted into the through hole 11a at the position shown in FIG.
[0014]
Thus the printed board P on which the screw body 1 is inserted into the through hole P 1, so is conveyed into a reflow furnace, which is the next step, the flange portion 12 of the screw body 1 in the reflow furnace soldering to a conductive pattern D It is fixed. At the time of this soldering, since the film 2 maintains the state attached to the flange portion 12, the solder does not enter the female screw 11a, so that inconvenience such that screwing cannot be performed at the time of male screwing later occurs. Not something.
[0015]
When a male screw is screwed into the printed board P to which the screw body 1 is attached to laminate another board, or when attaching a ground wire or a signal wire, the film 2 is pinched from the female screw 11a side with a pin or the like. When the film 2 is pushed up, the film 2 is separated from the flange portion 12 and the female screw 11a penetrates, so that the male screw can be screwed.
[0016]
【The invention's effect】
As described above, the present invention uses a device for automatically mounting components on a printed circuit board because a film is attached to a flange formed integrally with a cylindrical body formed with a female screw to close the female screw. Mounting can be performed on all the through holes, so that the screw body can be mounted on the printed circuit board by automation, and no positional deviation occurs.
[0017]
In addition, since the film is made of a heat-resistant resin film that can withstand the temperature at the time of soldering in the reflow furnace, the solder does not enter the screw hole in the soldering by the reflow furnace, and cannot be screwed in when the male screw is screwed. This has the effect of not causing such inconvenience.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a printed circuit board mounting screw according to the present invention.
FIG. 2 is a longitudinal sectional view of the same.
FIG. 3 is a cross-sectional view of a printed circuit board mounted on the printed circuit board.
FIG. 4 is a sectional view showing an example of a conventional screw mounting state.
FIG. 5 is a cross-sectional view showing a screw mounting state of another conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Screw main body 11 Tube part 11a Female screw 12 Flange part 2 Film

Claims (2)

外径がプリント基板のスルーホールに嵌入可能な外径に形成された雌ネジを有する筒部および該筒部の一端に形成されプリント基板の導電パターンに半田付けされる鍔部とからなるネジ本体と、
前記鍔部の前記雌ネジを塞ぐ大きさに形成され、かつ、鍔部に対して剥離可能に接着されたフィルムと、
を具備したことを特徴とするプリント基板実装用ネジ。A screw body comprising: a cylindrical portion having a female screw whose outer diameter is formed so as to fit into a through hole of a printed circuit board; and a flange formed at one end of the cylindrical portion and soldered to a conductive pattern of the printed circuit board. When,
A film formed to a size to close the female screw of the flange, and is peelably adhered to the flange,
A printed circuit board mounting screw, comprising: 前記フィルムはリフロー炉による半田付け時の温度に耐え得る耐熱性の樹脂フィルムであることを特徴とする請求項１記載のプリント基板実装用ネジ。2. The printed circuit board mounting screw according to claim 1, wherein the film is a heat-resistant resin film capable of withstanding a temperature during soldering in a reflow furnace.
JP2002242195A 2002-08-22 2002-08-22 Printed board mounting screw Pending JP2004079975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002242195A JP2004079975A (en) 2002-08-22 2002-08-22 Printed board mounting screw

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Application Number Priority Date Filing Date Title
JP2002242195A JP2004079975A (en) 2002-08-22 2002-08-22 Printed board mounting screw

Publications (1)

Publication Number Publication Date
JP2004079975A true JP2004079975A (en) 2004-03-11

Family

ID=32024462

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
JP (1) JP2004079975A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007267883A (en) * 2006-03-30 2007-10-18 Samii Kk Board case of game machine
EP2244545A3 (en) * 2009-04-23 2012-10-10 Kathrein-Werke KG Electrical connection device
US20200215632A1 (en) * 2019-01-09 2020-07-09 Dtech Precision Industries Co., Ltd. Structure and method for retaining fastening element solder
EP4280236A1 (en) * 2022-05-16 2023-11-22 Goodrich Control Systems Wound core circuit component

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007267883A (en) * 2006-03-30 2007-10-18 Samii Kk Board case of game machine
EP2244545A3 (en) * 2009-04-23 2012-10-10 Kathrein-Werke KG Electrical connection device
US20200215632A1 (en) * 2019-01-09 2020-07-09 Dtech Precision Industries Co., Ltd. Structure and method for retaining fastening element solder
US11638963B2 (en) * 2019-01-09 2023-05-02 Dtech Precision Industries Co., Ltd. Structure for retaining fastening element solder
EP4280236A1 (en) * 2022-05-16 2023-11-22 Goodrich Control Systems Wound core circuit component

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