JP3393496B2 - Flat wire connection terminal and flat wire and terminal connection method - Google Patents
Flat wire connection terminal and flat wire and terminal connection methodInfo
- Publication number
- JP3393496B2 JP3393496B2 JP03669094A JP3669094A JP3393496B2 JP 3393496 B2 JP3393496 B2 JP 3393496B2 JP 03669094 A JP03669094 A JP 03669094A JP 3669094 A JP3669094 A JP 3669094A JP 3393496 B2 JP3393496 B2 JP 3393496B2
- Authority
- JP
- Japan
- Prior art keywords
- electric wire
- terminal
- flat
- flat electric
- caulking
- 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
- Manufacturing Of Electrical Connectors (AREA)
- Multi-Conductor Connections (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ファインピッチなフラ
ット電線を確実に接続固定させ得るフラット電線接続用
端子及びフラット電線と端子の接続方法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat wire connecting terminal which can securely connect and fix a fine pitch flat electric wire and a method for connecting the flat electric wire to the terminal.
【０００２】[0002]
【従来の技術】図７〜８は、特開平２−３００７３号公
報に記載された従来のフラット電線と端子の接続方法を
示すものである。この接続方法は、絶縁被覆２７内に板
状導体２８を有するフラット電線２９の端末部を、雄端
子３０の基板部３１側に切り起こし形成した挟持片３２
で挟持接続させるものである。該挟持片３２には固定用
の爪３３，３４が形成され、図８（図７のＡ−Ａ相当断
面）の如く挟持片３２で絶縁被覆２７を剪断して板状導
体２８と接触させると共に、該爪３３，３４を絶縁被覆
２７に貫通させて折り曲げ、加締め固定させる。2. Description of the Related Art FIGS. 7 to 8 show a conventional method for connecting a flat electric wire and a terminal disclosed in Japanese Patent Laid-Open No. 2-30073. In this connection method, a holding piece 32 is formed by cutting and raising the end portion of the flat electric wire 29 having the plate conductor 28 in the insulating coating 27 on the side of the base portion 31 of the male terminal 30.
It is sandwiched and connected by. Fixing claws 33 and 34 are formed on the sandwiching piece 32, and the insulating coating 27 is sheared by the sandwiching piece 32 as shown in FIG. 8 (AA cross section of FIG. 7) and brought into contact with the plate conductor 28. The claws 33 and 34 are penetrated through the insulating coating 27, bent, fixed by crimping.
【０００３】しかしながら、上記従来の接続方法にあっ
ては、端子３０の挟持片３２や爪３３，３４がある程度
大きくないとフラット電線２９との接続や固定を行いに
くく、隣接する板状導体２８の間隔が狭いファインピッ
チなフラット電線を接続する場合においては接続部の強
度や電気的接続の信頼性を確保しにくいという問題があ
った。However, in the above-mentioned conventional connection method, it is difficult to connect or fix the flat electric wire 29 and the adjacent plate-shaped conductor 28 unless the holding piece 32 and the claws 33 and 34 of the terminal 30 are large to some extent. In the case of connecting a fine pitch flat electric wire having a narrow interval, there is a problem that it is difficult to secure the strength of the connecting portion and the reliability of the electrical connection.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記した点
に鑑み、ファインピッチなフラット電線を接続する場合
においても、確実に接続でき且つ確りと固定できるフラ
ット電線用接続端子及びフラット電線と端子の接続方法
を提供することを目的とする。SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a connection terminal for a flat electric wire and a flat electric wire and a terminal which can be surely connected and can be firmly fixed even when connecting a fine pitch flat electric wire. It is intended to provide a connection method of.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、端子本体の基板部に対向してフラット電
線に対する加締部を設けると共に、該基板部に、該フラ
ット電線の露出導体の先端部に対する当接兼溶接用の突
出部を設け、該フラット電線を該加締部と該基板部との
間に挟持した状態で、該露出導体の先端部と該突出部と
をビーム照射で溶接可能としたフラット電線接続用端子
を基本とする。そして、前記基板部に、前記加締部に対
向して前記フラット電線の絶縁被覆に対する支持突部を
形成し、該支持突部で該絶縁被覆を押圧可能としたこと
も有効である。In order to achieve the above object, the present invention provides a crimping portion for a flat wire facing a board portion of a terminal body, and exposing the flat wire on the board portion. A protrusion for contacting and welding the tip of the conductor is provided , and the flat electric wire is connected between the crimped portion and the substrate portion.
The end portion of the exposed conductor and the protruding portion in a state of being sandwiched between
Basically, it is a flat wire connection terminal that can be welded by beam irradiation . It is also effective to form a supporting projection for the insulating coating of the flat electric wire on the substrate portion so as to face the caulking portion, and press the insulating coating with the supporting projection .
【０００６】さらに、端子本体の基板部に対向する加締
部と該基板部との間にフラット電線を挿通し、該基板部
に設けた支持突部と該加締部との間で該フラット電線の
絶縁被覆部を挟持させると共に、該基板部に立ち上げた
突出部に該フラット電線の露出導体の先端を当接させ、
該突出部をビーム照射により該露出導体の先端部に溶接
させることを特徴とするフラット電線と端子の接続方法
を併せて採用する。Further, a flat electric wire is inserted between the caulking portion of the terminal body facing the substrate portion and the substrate portion, and the flat electric wire is inserted between the supporting protrusion provided on the substrate portion and the caulking portion. While sandwiching the insulation coating portion of the electric wire, the tip of the exposed conductor of the flat electric wire is brought into contact with the protruding portion that is erected on the substrate portion,
A method of connecting a flat electric wire and a terminal, characterized in that the projection is welded to the tip of the exposed conductor by beam irradiation, is also adopted.
【０００７】[0007]
【作用】フラット電線は、露出導体の先端を端子本体の
突出部に当接して位置決めされると共に、加締部により
基板部との間に加締固定される。すなわち基板部の支持
突部がフラット電線の絶縁被覆に押接し、露出導体は直
接的には端子本体に押圧固定されない。露出導体は絶縁
被覆の撓みにより長手方向に若干移動可能であり、それ
により溶接時の応力緩和が図られる。突出部にレーザ等
のビームを照射することにより、突出部と露出導体の先
端部が溶接され、ファインピッチなフラット電線の接続
が確実に行われる。The flat electric wire is positioned by contacting the tip of the exposed conductor with the projecting portion of the terminal body, and is fixed by caulking with the board. That is, the support protrusion of the board portion presses against the insulating coating of the flat electric wire, and the exposed conductor is not directly pressed and fixed to the terminal body. The exposed conductor can be slightly moved in the longitudinal direction due to the bending of the insulating coating, whereby stress relaxation during welding is achieved. By irradiating the protruding portion with a beam such as a laser, the protruding portion and the tip of the exposed conductor are welded, and the fine-pitch flat electric wire is reliably connected.
【０００８】[0008]
【実施例】図１〜６は本発明に係るフラット電線接続用
端子及びフラット電線と端子の接続方法の一実施例を示
すものである。このフラット電線接続用端子１は、図１
の如く矩形筒状の雌型の端子本体２の基板部３側に、フ
ラット電線４の端末部４ａ（図３参照）に対する圧着固
定部５と位置決め兼ビーム溶接用の突出片６を形成した
ものである。1 to 6 show an embodiment of a flat wire connecting terminal and a method of connecting a flat wire and a terminal according to the present invention. This flat wire connecting terminal 1 is shown in FIG.
As described above, the female terminal body 2 having a rectangular tubular shape is provided with the crimping and fixing portion 5 for the terminal portion 4a (see FIG. 3) of the flat electric wire 4 and the protruding piece 6 for positioning and beam welding on the substrate portion 3 side. Is.
【０００９】すなわち該圧着固定部５は、端子本体２の
前半部において底板部７から一方の側板部８に沿って立
板部９を立ち上げて基板部３よりも上方に延長し、該立
板部９の先端方（１１）を基板部３に対向して折曲し
て、基板部３との間にフラット電線４の端末部４ａに対
する挿通空間１０を存した加締板１１を形成し、さらに
該基板部３の他方の側板部１２を切り起こして加締片１
３を形成し、該加締片１３の後方において該加締板１１
の後半部１１ａに対向して該基板部３に一対の端子長手
方向の支持突条１４，１４を膨出形成して成るものであ
る。また前記位置決め兼ビーム溶接用の突出片６は基板
部３の前端中央からフラット電線４の端末部４ａの露出
導体１５ａの厚さ程度の高さに立ち上げ形成される。That is, the crimping and fixing portion 5 raises the standing plate portion 9 along the one side plate portion 8 from the bottom plate portion 7 in the front half portion of the terminal main body 2 so as to extend above the substrate portion 3 and The tip end portion (11) of the plate portion 9 is bent so as to face the substrate portion 3 to form a caulking plate 11 in which an insertion space 10 for the terminal portion 4a of the flat electric wire 4 is formed between the plate portion 9 and the substrate portion 3. , The other side plate portion 12 of the base plate portion 3 is cut and raised to press the caulking piece 1
3 is formed, and the caulking plate 11 is formed behind the caulking piece 13.
A pair of supporting projections 14, 14 in the longitudinal direction of the terminal are formed to bulge on the substrate portion 3 so as to face the latter half portion 11a. The protruding piece 6 for positioning and beam welding is formed so as to rise from the center of the front end of the substrate portion 3 to a height about the thickness of the exposed conductor 15a of the terminal portion 4a of the flat electric wire 4.
【００１０】該加締板１１は、加締片１３に対する切欠
孔と、突出片６の上端に対向する切欠片１７とを有す
る。該加締板１１の後半部１１ａは立板部９よりも後方
に突出延長し、基板部３との間にフラット電線４の絶縁
樹脂被覆１８を挿通する切欠溝１９を有する（図２参
照）。前記一対の支持突条１４，１４は、端末部４ａに
対する挿通空間１０内において加締板１１の方向に若干
量突出し、上端方の湾曲面１４ａでフラット電線４の絶
縁被覆１８上から板状導体１５を押圧する。前記端子本
体２の底板部７には弾性接触片２０が一体に形成されて
いる。The caulking plate 11 is a notch for the caulking piece 13.
It has a hole and a cutout piece 17 facing the upper end of the protruding piece 6. The rear half 11a of the caulking plate 11 projects and extends rearward from the standing plate 9, and has a notch groove 19 through which the insulating resin coating 18 of the flat electric wire 4 is inserted between the caulking plate 11 and the base plate 3 (see FIG. 2). . The pair of support ridges 14, 14 slightly protrude toward the caulking plate 11 in the insertion space 10 with respect to the terminal portion 4a, and the curved surface 14a at the upper end of the supporting ridges 14 and 14 from the insulating coating 18 of the flat electric wire 4 onto the plate-shaped conductor. Press 15. An elastic contact piece 20 is integrally formed on the bottom plate portion 7 of the terminal body 2.
【００１１】フラット電線４の端末部４ａは図２，３の
如く端子本体２の後方から挿通空間１０内に挿入され、
絶縁被覆１８から前方に突出した露出導体１５ａの先端
を端子本体２の突出部６に当接させて位置決めされる。
その状態で加締板１１及び加締片１３を図４の如く水平
に折り曲げて端末部４ａを基板部３との間で圧着固定さ
せる。The terminal portion 4a of the flat electric wire 4 is inserted into the insertion space 10 from the rear of the terminal body 2 as shown in FIGS.
The exposed conductor 15a protruding forward from the insulating coating 18 is brought into contact with the protruding portion 6 of the terminal body 2 for positioning.
In this state, the caulking plate 11 and the caulking piece 13 are bent horizontally as shown in FIG. 4, and the terminal portion 4a is pressure-bonded and fixed to the substrate portion 3.
【００１２】ここで一対の支持突条１４，１４は図５の
如くフラット電線４の絶縁樹脂被覆１８に食い込んで
（突き破ることなく押接して）板状導体１５を加締板１
１に向けて押圧し、フラット電線４を固定させる。図５
の如くフラット電線４の露出導体１５ａは基板部３との
間及び加締板１１との間に若干の隙間２１を存して位置
し、前記支持突条１４による絶縁被覆１８の押圧により
間接的に固定され、ビーム溶接時において電線長手方向
に絶縁被覆１８の撓みにより若干移動可能である。As shown in FIG. 5, the pair of support ridges 14, 14 dig into the insulating resin coating 18 of the flat electric wire 4 (press it without piercing) and press the plate-shaped conductor 15 into the caulking plate 1.
The flat electric wire 4 is fixed by pressing toward 1. Figure 5
As described above, the exposed conductor 15a of the flat electric wire 4 is positioned with a slight gap 21 between the flat wire 4 and the board portion 3 and between the caulking plate 11 and indirectly by pressing the insulating coating 18 by the supporting ridges 14. , And is slightly movable in the longitudinal direction of the electric wire due to the bending of the insulating coating 18 during beam welding.
【００１３】そして図４，５の如く端子本体２の前方か
ら突出片６に向けて水平にレーザ等の高エネルギ密度ビ
ーム２２を照射させ、図６の如く突出片６とフラット電
線４の露出導体１５ａと加締板１１の切欠片１７とを相
互に溶着させる。この際、露出導体１５ａは支持突条１
４を支点として長手方向に撓み可能であり、それにより
溶接部２３の残留応力が緩和される。As shown in FIGS. 4 and 5, a high energy density beam 22 such as a laser is irradiated horizontally from the front of the terminal body 2 toward the projecting piece 6, and as shown in FIG. 6, the projecting piece 6 and the exposed conductor of the flat wire 4 are exposed. 15a and the notch piece 17 of the caulking plate 11 are welded to each other. At this time, the exposed conductor 15a is the supporting ridge 1
4 can be bent in the longitudinal direction with the fulcrum as a fulcrum, whereby the residual stress of the welded portion 23 is relieved.
【００１４】また、レーザビーム２２を突出片６に照射
することにより、フラット電線４の薄く細幅な露出導体
１５ａの先端部を確実に溶接できる。すなわち図５にお
いて矢印２４の如く上方から露出導体１５ａに向けてレ
ーザビームを照射した場合には、端子１の加締板１１等
が括れて変形してしまい、この溶接部に引張応力がかか
った際に端子１側が折損してしまう場合がある。突出片
６へのレーザ照射は端子１の変形を防ぎ、ファインピッ
チのフラット電線４のような溶接面積の小さい部位に好
適である。Further, by irradiating the projecting piece 6 with the laser beam 22, the tip portion of the thin and narrow exposed conductor 15a of the flat electric wire 4 can be reliably welded. That is, when the laser beam is irradiated from above toward the exposed conductor 15a as shown by the arrow 24 in FIG. 5, the caulking plate 11 of the terminal 1 is constricted and deformed, and tensile stress is applied to this welded portion. At that time, the terminal 1 side may be broken. Laser irradiation of the protruding piece 6 prevents deformation of the terminal 1 and is suitable for a portion having a small welding area such as a fine pitch flat electric wire 4.
【００１５】なお、図４においてフラット電線４の隣接
する露出導体１５ａにはそれぞれ上記端子１が溶接接続
される。また該端子１は、丸型電線を後部に圧着接続さ
せる代わりにフラット電線４を上部（基板部３上）に溶
接接続させるものであるから、従来の圧着端子に較べて
電線圧着部の寸法分だけ長さが短縮され、小型化が図ら
れる。またレーザビームを分岐し、光ファイバーにて伝
送することにより同時多点溶接も可能である。In FIG. 4, the terminals 1 are welded to the adjacent exposed conductors 15a of the flat electric wire 4, respectively. Further, since the terminal 1 is for connecting the flat electric wire 4 to the upper portion (on the substrate portion 3) by welding instead of crimping the round electric wire to the rear portion, the size of the electric wire crimping portion is larger than that of the conventional crimping terminal. The length is shortened and the size is reduced. It also splits the laser beam and transmits it through an optical fiber.
Simultaneous multi-point welding is also possible by sending .
【００１６】[0016]
【発明の効果】以上の如くに、本発明によれば、フラッ
ト電線の露出導体の先端部を端子本体の突出部で位置決
めすると共に、該先端部と突出部とをビーム溶接で接続
するから、導体間隔が狭く且つ導体幅の狭いファインピ
ッチなフラット電線と端子とを位置精度良く且つ破断等
なく確実に接続できる。また、端子本体の支持突部がフ
ラット電線の絶縁被覆を加締部との間で挟持し、露出導
体が固定されずに絶縁被覆の撓み範囲で可動となるか
ら、導体溶接部の応力が緩和され、溶接部の静的強度や
振動等に対する疲労強度が向上し、電気的接続の信頼性
が高まる。As described above, according to the present invention, the tip of the exposed conductor of the flat electric wire is positioned by the projection of the terminal body, and the tip and the projection are connected by beam welding. A fine pitch flat electric wire having a narrow conductor interval and a narrow conductor width can be reliably connected to a terminal with high positional accuracy and without breakage. In addition, since the supporting projection of the terminal body clamps the insulation coating of the flat wire between the crimping section and the exposed conductor is not fixed, it can be moved within the deflection range of the insulation coating, so the stress at the conductor weld is reduced. As a result, the static strength of the welded portion and the fatigue strength against vibration and the like are improved, and the reliability of electrical connection is increased.
【図１】本発明に係るフラット電線接続用端子の一実施
例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of a flat wire connecting terminal according to the present invention.
【図２】端子にフラット電線を装着する状態を示す側面
図である。FIG. 2 is a side view showing a state in which a flat electric wire is attached to a terminal.
【図３】同じくフラット電線を固定する状態を示す斜視
図である。FIG. 3 is a perspective view showing a state in which a flat electric wire is also fixed.
【図４】フラット電線を固定した状態の斜視図である。FIG. 4 is a perspective view showing a state in which a flat electric wire is fixed.
【図５】同じくフラット電線を固定した状態の一部断面
を有する側面図である。FIG. 5 is a side view having a partial cross section in a state where the flat electric wire is also fixed.
【図６】フラット電線と端子をビーム溶接した状態の要
部断面図である。FIG. 6 is a cross-sectional view of an essential part of a state in which a flat electric wire and a terminal are beam-welded.
【図７】従来例を示す分解斜視図である。FIG. 7 is an exploded perspective view showing a conventional example.
【図８】同じく接続状態を示す図７のＡ−Ａ相当断面図
である。FIG. 8 is a cross-sectional view taken along line AA of FIG. 7, also showing the connection state.
１ フラット電線接続用端子 ２ 端子本体 ３ 基板部 ４ フラット電線 ６ 突出片 １１ 加締板 １３ 加締片 １４ 支持突部 １５ａ 露出導体 １８ 絶縁被覆 ２２ レーザビーム 1 Flat wire connection terminal 2 terminal body 3 board part 4 flat electric wire 6 protruding piece 11 Crimping plate 13 Caulking piece 14 Support protrusion 15a Exposed conductor 18 Insulation coating 22 laser beam
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01R 12/38 H01R 43/02 ─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. 7 , DB name) H01R 12/38 H01R 43/02
Claims (3)
線に対する加締部を設けると共に、該基板部に、該フラ
ット電線の露出導体の先端部に対する当接兼溶接用の突
出部を設け、該フラット電線を該加締部と該基板部との
間に挟持した状態で、該露出導体の先端部と該突出部と
をビーム照射で溶接可能としたことを特徴とするフラッ
ト電線接続用端子。1. A crimping portion for the flat electric wire is provided so as to face the board portion of the terminal body, and a protruding portion for abutting and welding the tip end portion of the exposed conductor of the flat electric wire is provided on the board portion . Connect the flat electric wire to the caulking portion and the substrate portion.
The end portion of the exposed conductor and the protruding portion in a state of being sandwiched between
A terminal for connecting a flat wire, which can be welded by beam irradiation .
記フラット電線の絶縁被覆に対する支持突部を形成し、
該支持突部で該絶縁被覆を押圧可能としたことを特徴と
する請求項１記載のフラット電線接続用端子。2. A support protrusion for the insulating coating of the flat electric wire is formed on the substrate portion so as to face the caulking portion ,
The supporting projection allows the insulating coating to be pressed.
The flat wire connecting terminal according to claim 1.
基板部との間にフラット電線を挿通し、該基板部に設け
た支持突部と該加締部との間で該フラット電線の絶縁被
覆部を挟持させると共に、該基板部に立ち上げた突出部
に該フラット電線の露出導体の先端を当接させ、該突出
部をビーム照射により該露出導体の先端部に溶接させる
ことを特徴とするフラット電線と端子の接続方法。3. A flat electric wire is inserted between a caulking portion of the terminal body facing the substrate portion and the substrate portion, and the flat wire is inserted between the supporting protrusion provided on the substrate portion and the caulking portion. While sandwiching the insulating coating portion of the electric wire, the tip of the exposed conductor of the flat electric wire is brought into contact with the protruding portion that is erected on the substrate portion, and the protruding portion is welded to the end portion of the exposed conductor by beam irradiation. A method of connecting flat wires and terminals characterized by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03669094A JP3393496B2 (en) | 1994-03-08 | 1994-03-08 | Flat wire connection terminal and flat wire and terminal connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03669094A JP3393496B2 (en) | 1994-03-08 | 1994-03-08 | Flat wire connection terminal and flat wire and terminal connection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07245129A JPH07245129A (en) | 1995-09-19 |
| JP3393496B2 true JP3393496B2 (en) | 2003-04-07 |
Family
ID=12476819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03669094A Expired - Fee Related JP3393496B2 (en) | 1994-03-08 | 1994-03-08 | Flat wire connection terminal and flat wire and terminal connection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3393496B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4668687B2 (en) * | 2005-05-27 | 2011-04-13 | 矢崎総業株式会社 | Piercing terminal, connection structure between flat circuit body and piercing terminal, and connection method between flat circuit body and piercing terminal |
-
1994
- 1994-03-08 JP JP03669094A patent/JP3393496B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07245129A (en) | 1995-09-19 |
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|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20021210 |
|
| LAPS | Cancellation because of no payment of annual fees |