JP2023170670A - Terminal manufacturing method - Google Patents

Terminal manufacturing method Download PDF

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JP2023170670A
JP2023170670A JP2022082574A JP2022082574A JP2023170670A JP 2023170670 A JP2023170670 A JP 2023170670A JP 2022082574 A JP2022082574 A JP 2022082574A JP 2022082574 A JP2022082574 A JP 2022082574A JP 2023170670 A JP2023170670 A JP 2023170670A
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Prior art keywords
terminal
tin plating
plating layer
base material
manufacturing
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Japanese (ja)
Inventor
龍矢 細野
Tatsuya Hosono
徹 鈴木
Toru Suzuki
暢 早坂
Noboru Hayasaka
和也 竹田
Kazuya Takeda
紘明 大野
Hiroaki Ono
純 杉岡
Jun Sugioka
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Yazaki Corp
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Yazaki Corp
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Priority to JP2022082574A priority Critical patent/JP2023170670A/en
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  • Manufacturing Of Electrical Connectors (AREA)

Abstract

To provide a terminal manufacturing method that improves the insertion/extraction resistance of a tin plating layer.SOLUTION: A plate-shaped base material 3 is rolled. A tin plating layer 4 is formed on the surface of the rolled base material 3. The base material 3 on which the tin plating layer 4 is formed is pressed to compress the thickness of the tin plating layer 4. Next, the base material 3 is sheared. The sheared base material 3 is bent to form a male terminal 1 and a female terminal 2.SELECTED DRAWING: Figure 2

Description

本発明は、端子の製造方法に関する。 The present invention relates to a method for manufacturing a terminal.

端子としては、互いに電気的に接続されるオス端子、メス端子がある。メス端子には、インデント、板バネが設けられ、オス端子がメス端子のインデントと板バネとの間に挿入されると板バネの反力によりオス端子、メス端子が電気的に接続される。 The terminals include male terminals and female terminals that are electrically connected to each other. The female terminal is provided with an indent and a leaf spring, and when the male terminal is inserted between the indent of the female terminal and the leaf spring, the male terminal and the female terminal are electrically connected by the reaction force of the leaf spring.

上述した端子の製造方法としては、母材の表面に錫メッキ層を形成した後、せん断、曲げ加工などの成型を行っている(例えば特許文献1)。 As a method for manufacturing the above-mentioned terminal, after forming a tin plating layer on the surface of a base material, shaping such as shearing and bending is performed (for example, Patent Document 1).

特開2014-164936号公報Japanese Patent Application Publication No. 2014-164936

ところで、上述したオス端子は、メス端子内に挿入する際に、板バネにより酸化した錫メッキ層の表面がけずられることで、新生面での接触を確保している。このため、オス端子のメス端子への挿抜を繰り返すと、錫メッキ層が剥がれてしまう、即ち錫メッキ層の耐挿抜性が低い、という課題があった。 By the way, when the above-mentioned male terminal is inserted into the female terminal, the surface of the oxidized tin plating layer is scratched by the leaf spring, thereby ensuring contact on the new surface. Therefore, when the male terminal is repeatedly inserted into and removed from the female terminal, the tin plating layer peels off, that is, the resistance to insertion and removal of the tin plating layer is low.

この課題を解決するために、耐挿抜性が高い銀メッキを用いることが考えられているが高価であるため、安価な錫メッキの耐挿抜性を向上することが望まれている。 In order to solve this problem, it has been considered to use silver plating, which has high insertion and removal resistance, but it is expensive, so it is desired to improve the insertion and removal resistance of inexpensive tin plating.

本発明は、上述した事情に鑑みてなされたものであり、その目的は、錫メッキ層の耐挿抜性の向上を図った端子の製造方法を提供することにある。 The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a method for manufacturing a terminal in which the resistance to insertion and removal of the tin plating layer is improved.

前述した目的を達成するために、本発明に係る端子の製造方法は、下記を特徴としている。
端子の製造方法であって、
板状の母材を圧延する工程と、
圧延された前記母材の表面に錫メッキ層を形成する工程と、
前記錫メッキ層が形成された前記母材をプレスして、前記錫メッキ層の厚みを圧縮させる工程と、
前記母材をせん断する工程と、
せん断された前記母材を折り曲げて前記端子を形成する工程と、を順次行う、
端子の製造方法であること。
In order to achieve the above-mentioned object, the method for manufacturing a terminal according to the present invention has the following features.
A method for manufacturing a terminal, the method comprising:
A process of rolling a plate-shaped base material,
forming a tin plating layer on the surface of the rolled base material;
pressing the base material on which the tin plating layer is formed to compress the thickness of the tin plating layer;
Shearing the base material;
bending the sheared base material to form the terminal; sequentially performing the steps;
Must be a terminal manufacturing method.

本発明によれば、錫メッキ層の耐挿抜性の向上を端子の製造方法を提供することができる。 According to the present invention, it is possible to provide a method for manufacturing a terminal in which the resistance to insertion and removal of the tin plating layer is improved.

以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態(以下、「実施形態」という。)を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるであろう。 The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the mode for carrying out the invention (hereinafter referred to as "embodiment") described below with reference to the accompanying drawings. .

図1は、本発明の端子の製造方法により製造されたオス端子、メス端子の一実施形態を示す断面図である。FIG. 1 is a sectional view showing an embodiment of a male terminal and a female terminal manufactured by the terminal manufacturing method of the present invention. 図2は、本発明の端子の製造方法について説明するための説明図である。FIG. 2 is an explanatory diagram for explaining the terminal manufacturing method of the present invention.

本発明に関する具体的な実施形態について、各図を参照しながら以下に説明する。 Specific embodiments of the present invention will be described below with reference to each figure.

図1は、本発明の端子の製造方法により製造されたオス端子1、メス端子2の一実施形態を示す断面図である。同図に示すように、オス端子1は、タブ状に設けられた端子接続部11を有している。メス端子2は、端子接続部21と、インデント22と、板バネ23と、を有している。端子接続部21は、四角筒状に設けられている。インデント22は、端子接続部21の上壁を端子接続部21内に向かってプレスして形成されている。板バネ23は、端子接続部21内の下壁側に設けられ、オス端子1側が固定端、メス端子2側が自由端となり、上下に可撓に設けられている。 FIG. 1 is a sectional view showing an embodiment of a male terminal 1 and a female terminal 2 manufactured by the terminal manufacturing method of the present invention. As shown in the figure, the male terminal 1 has a tab-shaped terminal connection portion 11. The female terminal 2 has a terminal connection portion 21, an indent 22, and a leaf spring 23. The terminal connection portion 21 is provided in the shape of a square tube. The indent 22 is formed by pressing the upper wall of the terminal connection part 21 toward the inside of the terminal connection part 21. The leaf spring 23 is provided on the lower wall side of the terminal connection portion 21, with a fixed end on the male terminal 1 side and a free end on the female terminal 2 side, and is provided flexibly in the upper and lower directions.

上述したオス端子1、メス端子2は、表面に錫メッキ層4(図2を参照)が形成された板状の母材3をせん断、折り曲げ加工することにより製造される。また、オス端子1は、メス端子2に挿入する際に、板バネ23により酸化した錫メッキ層4の表面が削られることで、新生面での接触を確保している。 The above-described male terminal 1 and female terminal 2 are manufactured by shearing and bending a plate-shaped base material 3 on which a tin plating layer 4 (see FIG. 2) is formed. Further, when the male terminal 1 is inserted into the female terminal 2, the surface of the oxidized tin plating layer 4 is scraped by the leaf spring 23, thereby ensuring contact on the new surface.

次に、上述した構成の端子の製造方法について図2を参照して説明する。まず、板状の母材3を圧延する。母材3は、銅やアルミニウムなどの導電部材から構成されている。圧延は、複数のロール間に母材3を通して、ロールにより母材を押しつぶして伸ばすなどの周知の方法により行われる。 Next, a method for manufacturing the terminal having the above-described structure will be described with reference to FIG. 2. First, a plate-shaped base material 3 is rolled. The base material 3 is made of a conductive member such as copper or aluminum. Rolling is performed by a well-known method such as passing the base material 3 between a plurality of rolls and crushing and stretching the base material with the rolls.

次に、圧延した母材3の表面に錫メッキ層4を形成する。錫メッキ層4は、母材3の全表面に形成してもよいし、一部に形成してもよい。錫メッキ層4は、電析などの周知の方法により形成される。 Next, a tin plating layer 4 is formed on the surface of the rolled base material 3. The tin plating layer 4 may be formed on the entire surface of the base material 3 or may be formed on a portion thereof. The tin plating layer 4 is formed by a well-known method such as electrodeposition.

次に、錫メッキ層4が形成された母材3をプレスして、錫メッキ層4の厚みを圧縮させる。プレスは、周知のプレス機などを用いて行われる。本実施形態では、錫メッキ層4は、母材3の上面のみに形成されている。このため、上側から金型を錫メッキ層4に向けて近づけ、金型により錫メッキ層4表面をプレスして、錫メッキ層4を圧縮させている。 Next, the base material 3 on which the tin plating layer 4 is formed is pressed to compress the thickness of the tin plating layer 4. Pressing is performed using a well-known press or the like. In this embodiment, the tin plating layer 4 is formed only on the upper surface of the base material 3. For this purpose, a mold is brought close to the tin plating layer 4 from above, and the surface of the tin plating layer 4 is pressed by the mold, thereby compressing the tin plating layer 4.

次に、母材3を所定の形状にせん断し、せん断された母材3を折り曲げて端子を形成する成型を行う。せん断・成型は、周知のせん断機、プレス機などを用いて行われる。 Next, the base material 3 is sheared into a predetermined shape, and the sheared base material 3 is bent to form a terminal. Shearing and shaping are performed using a well-known shearing machine, press machine, etc.

上述した実施形態によれば、母材3表面に錫メッキ層4を形成した後、錫メッキ層4をプレスして圧縮させている。これにより、錫メッキ層4が加工硬化するため、挿抜を繰り返しても錫メッキ層4が剥がれにくくなり、錫メッキ層4の耐挿抜性の向上を図ることができる。また、プレス時にプレスする金型に錫メッキが転写されるため、錫メッキ層4の表面が平滑になり、オス端子1とメス端子2との摩擦力が下がり、オス端子1をメス端子2に挿入する際の挿入力の低減を図ることができる。 According to the embodiment described above, after forming the tin plating layer 4 on the surface of the base material 3, the tin plating layer 4 is pressed and compressed. As a result, the tin plating layer 4 is work hardened, so that the tin plating layer 4 becomes difficult to peel off even after repeated insertion and removal, and the insertion and removal resistance of the tin plating layer 4 can be improved. In addition, since the tin plating is transferred to the mold to be pressed during pressing, the surface of the tin plating layer 4 becomes smooth and the frictional force between the male terminal 1 and the female terminal 2 is reduced, and the male terminal 1 is transferred to the female terminal 2. It is possible to reduce the insertion force during insertion.

なお、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。 Note that the present invention is not limited to the embodiments described above, and can be modified, improved, etc. as appropriate. In addition, the material, shape, size, number, arrangement location, etc. of each component in the above-described embodiments are arbitrary as long as the present invention can be achieved, and are not limited.

上述した実施形態によれば、オス端子1、メス端子2の双方とも、せん断前に母材3をプレス加工して、錫メッキ層4を硬化させていたが、これに限ったものではない。挿入時に錫メッキ層4が削れやすいオス端子1のみせん断前に母材3をプレス加工するようにしてもよい。 According to the embodiment described above, the base material 3 of both the male terminal 1 and the female terminal 2 is press-worked to harden the tin plating layer 4 before shearing, but the present invention is not limited to this. The base material 3 may be pressed before shearing only the male terminal 1 whose tin plating layer 4 is likely to be scraped during insertion.

ここで、上述した本発明に係る端子の製造方法の実施形態の特徴を以下[1]に簡潔に纏めて列記する。
[1]
端子の製造方法であって、
板状の母材(3)を圧延する工程と、
圧延された前記母材(3)の表面に錫メッキ層(4)を形成する工程と、
前記錫メッキ層(4)が形成された前記母材(3)をプレスして、前記錫メッキ層(4)の厚みを圧縮させる工程と、
前記母材(3)をせん断する工程と、
せん断された前記母材(3)を折り曲げて前記端子(1、2)を形成する工程と、を順次行う、
端子の製造方法。
Here, the features of the embodiment of the terminal manufacturing method according to the present invention described above will be summarized and listed below in [1].
[1]
A method for manufacturing a terminal, the method comprising:
a step of rolling a plate-shaped base material (3);
forming a tin plating layer (4) on the surface of the rolled base material (3);
pressing the base material (3) on which the tin plating layer (4) is formed to compress the thickness of the tin plating layer (4);
Shearing the base material (3);
sequentially performing a step of bending the sheared base material (3) to form the terminals (1, 2);
Terminal manufacturing method.

上記[1]の構成によれば、プレスにより錫メッキ層(4)が加工硬化するため、挿抜を繰り返しても錫メッキ層(4)が剥がれにくくなり、錫メッキ層(4)の耐挿抜性の向上を図ることができる。また、プレス時にプレスする金型に錫メッキが転写されるため、錫メッキ層(4)の表面が平滑になり、オス端子(1)とメス端子(2)との摩擦力が下がり、オス端子(1)をメス端子(2)に挿入する際の挿入力の低減を図ることができる。 According to the configuration [1] above, since the tin plating layer (4) is work-hardened by pressing, the tin plating layer (4) is difficult to peel off even after repeated insertion and removal, and the insertion and removal resistance of the tin plating layer (4) is improved. It is possible to improve the In addition, since the tin plating is transferred to the mold to be pressed during pressing, the surface of the tin plating layer (4) becomes smooth, reducing the frictional force between the male terminal (1) and the female terminal (2). It is possible to reduce the insertion force when inserting (1) into the female terminal (2).

1 オス端子(端子)
2 メス端子(端子)
3 母材
4 錫メッキ層
1 Male terminal (terminal)
2 Female terminal (terminal)
3 Base material 4 Tin plating layer

Claims (1)

端子の製造方法であって、
板状の母材を圧延する工程と、
圧延された前記母材の表面に錫メッキ層を形成する工程と、
前記錫メッキ層が形成された前記母材をプレスして、前記錫メッキ層の厚みを圧縮させる工程と、
前記母材をせん断する工程と、
せん断された前記母材を折り曲げて前記端子を形成する工程と、を順次行う、
端子の製造方法。
A method for manufacturing a terminal, the method comprising:
A process of rolling a plate-shaped base material,
forming a tin plating layer on the surface of the rolled base material;
pressing the base material on which the tin plating layer is formed to compress the thickness of the tin plating layer;
Shearing the base material;
bending the sheared base material to form the terminal; sequentially performing the steps;
Terminal manufacturing method.
JP2022082574A 2022-05-19 2022-05-19 Terminal manufacturing method Pending JP2023170670A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022082574A JP2023170670A (en) 2022-05-19 2022-05-19 Terminal manufacturing method

Publications (1)

Publication Number Publication Date
JP2023170670A true JP2023170670A (en) 2023-12-01

Family

ID=88927799

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022082574A Pending JP2023170670A (en) 2022-05-19 2022-05-19 Terminal manufacturing method

Country Status (1)

Country Link
JP (1) JP2023170670A (en)

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