JPH0520264U - Connection terminal and its welded structure - Google Patents
Connection terminal and its welded structureInfo
- Publication number
- JPH0520264U JPH0520264U JP6813091U JP6813091U JPH0520264U JP H0520264 U JPH0520264 U JP H0520264U JP 6813091 U JP6813091 U JP 6813091U JP 6813091 U JP6813091 U JP 6813091U JP H0520264 U JPH0520264 U JP H0520264U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- welding
- pin
- electrode
- connection
- 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.)
- Granted
Links
- 238000003466 welding Methods 0.000 claims abstract description 32
- 229910000679 solder Inorganic materials 0.000 claims abstract description 5
- 230000013011 mating Effects 0.000 claims abstract description 3
- 239000007769 metal material Substances 0.000 claims abstract description 3
- 238000005452 bending Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 229910001369 Brass Inorganic materials 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Multi-Conductor Connections (AREA)
Abstract
(57)【要約】
【目的】 異種金属端子同士を消費電力の少ない交流電
流でプロジェクション溶接可能な接続端子及びその溶接
構造を提供する。
【構成】 基板部８の一方に、回路基板６に対するハン
ダ接続部７、基板部の他方に、相手端子１に対する一対
の対向する溶接用湾曲部４を有する接続片５をそれぞれ
設けてなる接続端子３、並びに、ピン状端子１に、ピン
状端子とは違う金属材で形成された接続端子３の接続片
５を電極１１で押接して交流抵抗溶接させる溶接構造で
あって、接続片５を外側に湾曲させて、湾曲部４の中央
に、ピン状端子１に対する接点を形成させ、湾曲部４よ
りも小さな曲率半径の先端アール部１０を電極１１に形
成して、先端アール部１０を湾曲部４に押接させる構
造。
(57) [Abstract] [Purpose] To provide a connection terminal and a welding structure thereof capable of performing projection welding of dissimilar metal terminals with AC current with low power consumption. A connection terminal in which one of the board portions 8 is provided with a solder connection portion 7 for the circuit board 6, and the other of the board portions is provided with a connection piece 5 having a pair of opposing welding curved portions 4 for the mating terminal 1. 3, and a welding structure in which the connection piece 5 of the connection terminal 3 formed of a metal material different from that of the pin-shaped terminal is pressed against the electrode 11 by AC resistance welding to the pin-shaped terminal 1. It is bent outward so that a contact point for the pin-shaped terminal 1 is formed in the center of the curved portion 4, and the tip rounded portion 10 having a radius of curvature smaller than that of the curved portion 4 is formed on the electrode 11 to bend the tip rounded portion 10. Structure to press against the part 4.
Description
【０００１】[0001]
本考案は、異種金属端子同士を確実にプロジェクション溶接可能な接続端子及 びその溶接構造に関するものである。 The present invention relates to a connection terminal and a welding structure for reliably projection-welding dissimilar metal terminals to each other.
【０００２】[0002]
図５は、従来の端子の溶接構造を示す分解斜視図、図６は、溶接状態を示す図 ５のＢ−Ｂ相当断面図である。 図で、２０は、ブラケット２１に固定されたセンサ２２から突出した円柱状の ピン端子、２３は、該ブラケット２１を固定する回路基板、２４は、基板部２５ の一方に雄タブ２６、他方に、一対の対向する接続片２７，２７を形成した接続 端子を示す。該接続端子２４の雄タブ２６は、回路基板２３にハンダ接続され、 該接続片２７は、電極２８によりピン端子２０にプロジェクション溶接される。 該接続片２７には、内向きに突起部２９を膨出形成してある。 FIG. 5 is an exploded perspective view showing a welding structure of a conventional terminal, and FIG. 6 is a sectional view taken along line BB of FIG. 5 showing a welding state. In the figure, 20 is a columnar pin terminal protruding from the sensor 22 fixed to the bracket 21, 23 is a circuit board for fixing the bracket 21, 24 is a male tab 26 on one side of the board portion 25, and 24 on the other side. , A connection terminal formed with a pair of connection pieces 27, 27 facing each other. The male tab 26 of the connection terminal 24 is soldered to the circuit board 23, and the connection piece 27 is projection welded to the pin terminal 20 by the electrode 28. The connecting piece 27 is formed with a protrusion 29 bulging inward.
【０００３】 該ピン端子２０は、摩耗や変形を防止するために高強度な鉄・ニッケル合金で 形成され、該接続端子２４は、ハンダ接続性を考慮して雄タブ２６と基板部２５ を黄銅、接続片２７を黄銅（外側）２７ａとニッケル合金（内側）２７ｂのクラ ッド構造（図６参照）にして、ピン端子２０との溶接性（融点の一致）を図って いる。The pin terminal 20 is formed of a high-strength iron-nickel alloy in order to prevent wear and deformation, and the connection terminal 24 has a male tab 26 and a substrate portion 25 made of brass in consideration of solder connectivity. The connecting piece 27 has a clad structure of brass (outer side) 27a and nickel alloy (inner side) 27b (see FIG. 6) to achieve weldability (matching melting points) with the pin terminal 20.
【０００４】 そして、図６の如く、ピン端子２０を対向する突起部２９，２９の間に挿入し 、接続片２７の背面２７ｃを電極２８の先端（平坦）面２８ａで押圧して直流抵 抗溶接を行うのである。Then, as shown in FIG. 6, the pin terminal 20 is inserted between the opposing projections 29, 29, and the back surface 27 c of the connection piece 27 is pressed by the tip (flat) surface 28 a of the electrode 28 to apply a DC resistance. Weld.
【０００５】 しかしながら、上記従来の構造にあっては、接続端子２４をクラッド構造にし なければならないので、コスト高になるという欠点があった。さらに、直流溶接 であるために消費電力が多いという問題もあった。However, in the above-described conventional structure, the connection terminal 24 has to have a clad structure, which has a disadvantage of high cost. In addition, there is a problem that power consumption is high because of DC welding.
【０００６】 なお、接続片２７の材質を安価な黄銅（異種金属）にすると、溶接に際して、 導電性の良い基板部２５側に分流してしまい、うまく溶着できない。また、消費 電力の少ない交流電流を使用しても、少なからず基板部２５側へ分流してしまい 、同様にうまく溶着できないのである。If the material of the connecting piece 27 is inexpensive brass (different metal), it will be shunted to the side of the board portion 25 having good conductivity at the time of welding, and welding will not be successful. Moreover, even if an AC current with low power consumption is used, the current is shunted to the substrate 25 side to a large extent, and similarly, welding cannot be performed well.
【０００７】[0007]
本考案は、上記した点に鑑み、異種金属端子同士を確実に溶接できて、低コス ト化を達成し得る接続端子及びその溶接構造を提供することを目的とする。 The present invention has been made in view of the above points, and an object of the present invention is to provide a connection terminal and a welding structure thereof that can reliably weld dissimilar metal terminals to each other and achieve cost reduction.
【０００８】[0008]
上記目的を達成するために、本考案は、基板部の一方に、回路基板に対するハ ンダ接続部、該基板部の他方に、相手端子に対する一対の対向する溶接用湾曲部 を有する接続片をそれぞれ設けてなることを特徴とする接続端子、並びに、ピン 状端子に、該ピン状端子とは違う金属材で形成された接続端子の接続片を電極で 押接して交流抵抗溶接させる溶接構造であって、該接続片を外側に湾曲させて、 湾曲部の中央に、該ピン状端子に対する接点を形成させ、該湾曲部よりも小さな 曲率半径の先端アール部を前記電極に形成して、該先端アール部を該湾曲部に押 接させることを特徴とする接続端子の溶接構造をそれぞれ採用するものである。 In order to achieve the above object, the present invention provides, on one side of a board portion, a solder connecting portion for a circuit board, and on the other side of the board portion, a connecting piece having a pair of opposing welding curved portions for a mating terminal. The welding structure is characterized in that it is provided, and a connection piece of a connection terminal formed of a metal material different from that of the pin-shaped terminal is pressed against the electrode by the electrode to perform AC resistance welding. By bending the connecting piece outward to form a contact point for the pin-shaped terminal at the center of the curved portion, and forming a tip rounded portion having a radius of curvature smaller than that of the curved portion on the electrode. The welding structure of the connection terminal is characterized in that the rounded portion is pressed against the curved portion.
【０００９】[0009]
溶接に際して、電極の先端アール部が接続片の湾曲部に密着するから、交流（ 小振幅）を使用した予熱を行うことにより、該接続片の接点を集中的に加熱して 、該接点の抵抗を増大させることができる。従って、該接続片が導電性の良い銅 合金であっても、分流を生じることなく、接点が溶融に必要な温度に発熱し、異 種金属のピン状端子との溶接が可能となる。 At the time of welding, the radius of the tip of the electrode comes into close contact with the curved portion of the connecting piece. Therefore, the contact of the connecting piece is intensively heated by preheating using alternating current (small amplitude), and the resistance of the contact is reduced. Can be increased. Therefore, even if the connecting piece is a copper alloy having good conductivity, the contacts generate heat to a temperature necessary for melting without causing a shunt, and welding with a pin-shaped terminal made of a different metal is possible.
【００１０】[0010]
図１は、本考案に係る接続端子及びその溶接構造を示す分解斜視図である。 図で、１は、センサ２から突出した円柱状の鉄・ニッケル合金製のピン端子、 ３は、該ピン端子１に対する湾曲部４を有する一対の接続片５，５と、回路基板 ６に対するハンダ接続部としての雄タブ７とを有する接続端子を示す。 FIG. 1 is an exploded perspective view showing a connection terminal and a welding structure thereof according to the present invention. In the figure, 1 is a cylindrical iron / nickel alloy pin terminal protruding from the sensor 2, 3 is a pair of connecting pieces 5 and 5 having a curved portion 4 for the pin terminal 1, and a solder for the circuit board 6. 3 shows a connection terminal having a male tab 7 as a connection portion.
【００１１】 該接続端子３は、図２にその正面図を示すように、基板部８の一方に前記雄タ ブ７を下向きに屈曲させて形成し、該基板部８の他方に、該基板部８の側部から 前後して一対の前記接続片５，５を上向きに突出させ、該接続片５，５の上部に 一対の対向する前記湾曲部４，４を一体に連成してなるものである。該湾曲部４ ，４は、それぞれ外側に向けて湾曲し、その内面４ａの中央にピン端子１の径Ｄ （図１）よりも若干小さな隙間Ｓを空けて、ピン端子１に対する接点９，９を対 向させている。As shown in the front view of FIG. 2, the connection terminal 3 is formed by bending the male tab 7 downward on one side of the board portion 8 and on the other side of the board portion 8 by connecting the board portion 8 to the board portion 8. A pair of connecting pieces 5 and 5 are projected upward and backward from the side part of the portion 8 and a pair of opposing curved portions 4 and 4 are integrally formed on the upper part of the connecting pieces 5 and 5 so as to be integrally formed. It is a thing. The curved portions 4, 4 are curved outward, respectively, and a gap S, which is slightly smaller than the diameter D (FIG. 1) of the pin terminal 1, is formed in the center of the inner surface 4a of the curved portion 4, 4 and the contact points 9, 9 for the pin terminal 1 are formed. Are facing each other.
【００１２】 さらに、該一対の湾曲部４，４の背面４ｂに対して先端アール部１０を有する 一対の電極１１，１１を対向して配置させる。該先端アール部１０の曲率半径Ｒ 1 は、湾曲部４の曲率半径Ｒ2 よりも小さく設定される。Further, a pair of electrodes 11, 11 having a tip rounded portion 10 is arranged to face the back surface 4 b of the pair of curved portions 4, 4. Radius of curvature R of the tip rounded portion 10 1 Is the radius of curvature R of the curved portion 4.2Is set smaller than.
【００１３】 そして、図３に示すように、ピン端子１を該一対の接続片５，５の湾曲部４， ４で挟持させ、該湾曲部４の背面４ｂに電極１１の先端アール部１０を密着して 押圧すると同時に、図４に示すようなパターンで交流電流を印加する。Then, as shown in FIG. 3, the pin terminal 1 is sandwiched between the curved portions 4 and 4 of the pair of connecting pieces 5 and 5, and the tip rounded portion 10 of the electrode 11 is provided on the back surface 4 b of the curved portion 4. Simultaneously with pressing, the AC current is applied in a pattern as shown in FIG.
【００１４】 すなわち、初期には、小振幅の予熱電流１２を印加して、湾曲部４の接点９を 加熱させる。次いで、大振幅の溶接電流１３を印加して、該接点９を発熱させて ピン端子１と溶着させる。要するに、この予熱操作を行うことによって、接点９ の抵抗が増し、接続片５から基板部８への分流がなくなり、接点９が溶融温度ま で発熱するのである。That is, initially, a small-amplitude preheating current 12 is applied to heat the contact 9 of the bending portion 4. Next, a large amplitude welding current 13 is applied to heat the contact 9 and weld it to the pin terminal 1. In short, by performing this preheating operation, the resistance of the contact 9 increases, the shunting of the flow from the connecting piece 5 to the substrate 8 is eliminated, and the contact 9 generates heat up to the melting temperature.
【００１５】 この作用は、電極１１の先端アール部１０を湾曲部４の背面４ａに直接接触（ 密着）させることにより達成されるものであり、従来（図６参照）のように、電 極２８の先端面２８ａと接続片２７の突起部（プロジェクション）２９が非接触 な構造では、予熱の効果が発揮されない訳である。This action is achieved by directly contacting (adhering) the tip rounded portion 10 of the electrode 11 to the back surface 4a of the bending portion 4, and as in the conventional case (see FIG. 6), the electrode 28 The preheating effect is not exhibited in the structure in which the tip end surface 28a of the above and the projection portion (projection) 29 of the connection piece 27 are not in contact with each other.
【００１６】[0016]
以上の如くに、本考案によれば、接続端子の接触片に湾曲部を形成し、該湾曲 部に対して曲率半径の小さな先端アール部を有する電極を密着させる構造にした から、交流電流による接点の予熱が効果的に行われ、ピン状端子との溶接を確実 に行うことができる。従って、消費電力の少ない交流電流の使用が可能となると 共に、従来の高価なクラッド材の使用をやめて、安価な銅合金製の接続端子の使 用が可能となり、製造コストの低減を図ることができるものである。 As described above, according to the present invention, since the curved portion is formed on the contact piece of the connection terminal, and the electrode having the tip radius portion having a small radius of curvature is brought into close contact with the curved portion, the alternating current is applied. Preheating of the contacts is effectively performed, and welding with the pin terminals can be performed reliably. Therefore, it is possible to use AC current with low power consumption, and it is possible to stop using conventional expensive clad material and use inexpensive copper alloy connection terminals, thus reducing manufacturing costs. It is possible.
【図１】本考案に係る接続端子及びその溶接構造の一実
施例を示す分解斜視図である。FIG. 1 is an exploded perspective view showing an embodiment of a connection terminal and a welding structure thereof according to the present invention.
【図２】同じく接続端子を示す正面図である。FIG. 2 is a front view showing a connection terminal of the same.
【図３】溶接時の状態を示す図１のＡ−Ａ相当断面図で
ある。FIG. 3 is a sectional view taken along line AA of FIG. 1 showing a state during welding.
【図４】同じく交流溶接電流の波形を示す説明図であ
る。FIG. 4 is an explanatory diagram showing a waveform of an AC welding current.
【図５】従来の溶接構造を示す分解斜視図である。FIG. 5 is an exploded perspective view showing a conventional welding structure.
【図６】同じく溶接時の状態を示す図５のＢ−Ｂ相当断
面図である。FIG. 6 is a sectional view taken along line BB of FIG. 5, showing a state during welding in the same manner.
１ ピン端子 ３ 接続端子 ４ 湾曲部 ５ 接続片 ７ 雄タブ ８ 基板部 ９ 接点 １０ 先端アール部 １１ 電極 Ｒ1 ，Ｒ2 曲率半径1 pin terminal 3 connection terminal 4 curved part 5 connection piece 7 male tab 8 board part 9 contact point 10 tip rounded part 11 electrode R 1 , R 2 radius of curvature
───────────────────────────────────────────────────── フロントページの続き (72)考案者 加藤 晃 静岡県榛原郡榛原町布引原206−１ 矢崎 部品株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Akira Kato 206-1 Nunobikibara, Haibara-cho, Haibara-gun, Shizuoka Prefecture Yazaki Parts Co., Ltd.
Claims (2)
ダ接続部、該基板部の他方に、相手端子に対する一対の
対向する溶接用湾曲部を有する接続片をそれぞれ設けて
なることを特徴とする接続端子。1. A solder connecting portion for a circuit board is provided on one side of the board portion, and a connecting piece having a pair of opposing welding curved portions for a mating terminal is provided on the other side of the board portion, respectively. Connecting terminal.
属材で形成された接続端子の接続片を電極で押接して交
流抵抗溶接させる溶接構造であって、該接続片を外側に
湾曲させて、湾曲部の中央に、該ピン状端子に対する接
点を形成させ、該湾曲部よりも小さな曲率半径の先端ア
ール部を前記電極に形成して、該先端アール部を該湾曲
部に押接させることを特徴とする接続端子の溶接構造。2. A welding structure in which a connecting piece of a connecting terminal formed of a metal material different from that of the pin-shaped terminal is pressed against the pin-shaped terminal by an electrode to perform AC resistance welding, and the connecting piece is placed outside. By bending, a contact point for the pin-shaped terminal is formed in the center of the curved portion, a tip radius portion having a radius of curvature smaller than that of the curvature portion is formed on the electrode, and the tip radius portion is pressed against the curvature portion. Welding structure of connecting terminal characterized by making contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991068130U JP2575036Y2 (en) | 1991-08-27 | 1991-08-27 | Connection terminal welding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991068130U JP2575036Y2 (en) | 1991-08-27 | 1991-08-27 | Connection terminal welding structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0520264U true JPH0520264U (en) | 1993-03-12 |
| JP2575036Y2 JP2575036Y2 (en) | 1998-06-25 |
Family
ID=13364857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991068130U Expired - Fee Related JP2575036Y2 (en) | 1991-08-27 | 1991-08-27 | Connection terminal welding structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2575036Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014033547A (en) * | 2012-08-03 | 2014-02-20 | Asmo Co Ltd | Welding structure of winding, terminal and stator |
| JP2015034748A (en) * | 2013-08-09 | 2015-02-19 | 日立金属株式会社 | Thermal mass flow meter and mass flow controller |
| JP2016035872A (en) * | 2014-08-04 | 2016-03-17 | 株式会社フジクラ | Manufacturing method of electric wire with terminal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53132792A (en) * | 1977-04-22 | 1978-11-18 | Fujitsu Ltd | Welding terminal of fine wires |
| JPS564366A (en) * | 1979-06-22 | 1981-01-17 | Hitachi Ltd | Metal flask for vacuum casting |
-
1991
- 1991-08-27 JP JP1991068130U patent/JP2575036Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53132792A (en) * | 1977-04-22 | 1978-11-18 | Fujitsu Ltd | Welding terminal of fine wires |
| JPS564366A (en) * | 1979-06-22 | 1981-01-17 | Hitachi Ltd | Metal flask for vacuum casting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014033547A (en) * | 2012-08-03 | 2014-02-20 | Asmo Co Ltd | Welding structure of winding, terminal and stator |
| JP2015034748A (en) * | 2013-08-09 | 2015-02-19 | 日立金属株式会社 | Thermal mass flow meter and mass flow controller |
| JP2016035872A (en) * | 2014-08-04 | 2016-03-17 | 株式会社フジクラ | Manufacturing method of electric wire with terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2575036Y2 (en) | 1998-06-25 |
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