JPS633916A - Manufacture of terminal base - Google Patents

Manufacture of terminal base

Info

Publication number
JPS633916A
JPS633916A JP61147737A JP14773786A JPS633916A JP S633916 A JPS633916 A JP S633916A JP 61147737 A JP61147737 A JP 61147737A JP 14773786 A JP14773786 A JP 14773786A JP S633916 A JPS633916 A JP S633916A
Authority
JP
Japan
Prior art keywords
terminal
synthetic resin
base
metal
insert
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
JP61147737A
Other languages
Japanese (ja)
Inventor
Toru Yoshikawa
徹 吉川
Sadamu Nishimura
西村 定
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP61147737A priority Critical patent/JPS633916A/en
Publication of JPS633916A publication Critical patent/JPS633916A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve the sealing property at an insert part by a method wherein irregularities are embossed to a terminal, which is to be inserted into a synthetic resin base, and, in addition, material, which enhances the wettability between the metal of the terminal and synthetic resin, is applied over the irregularities. CONSTITUTION:Irregularity part 3 consisting to V-shaped grooves is formed on a metal terminal 1, which is to be inserted into a synthetic resin base. Next, the surface of the terminal 1 is modified so as to improve the adhesion between said surface and synthetic resin by coating silane-, titanium-or chromium-based coupling agent or material to enhance wettability onto the outer surface of the irregularity part 3. After that, under the state that the terminal 1 is fixed and held to the predetermined position in the cavity of a mold, a synthetic resin base 2 is molded, resulting in obtaining a terminal which has excellent sealing property at an insert part 1A and allows to surely prevent soldering flux, cleaning fluid and the like from penetrating thereinto.

Description

【発明の詳細な説明】 [発明の分野] この発明は、端子を合成樹脂製ベースにインサート成形
する端子ベースの製造方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a method for manufacturing a terminal base in which a terminal is insert-molded into a synthetic resin base.

[従来技術とその問題点コ 従来、金属製端子は金型のキャビティ内に固定した状態
で、溶融樹脂を射出し、端子を樹脂製ベースにインサー
ト成形していた。
[Prior art and its problems] Conventionally, metal terminals were fixed in a mold cavity, then molten resin was injected and the terminals were insert-molded into a resin base.

しかし、このような従来の端子ベースの製造方法によれ
ば、成形後に金属と樹脂との熱収縮差、インサートされ
た端子の曲げ、切断加工等によって、端子とベースとの
接合面に微少な隙間が生じていた。
However, according to such conventional terminal base manufacturing methods, minute gaps may be created at the bonding surface between the terminal and the base due to differences in thermal shrinkage between the metal and resin, bending of the inserted terminal, cutting process, etc. after molding. was occurring.

そのため、端子の半田付は時に発生するフラックスなど
の腐食性溶剤が上記の隙間からベースの内側に浸入して
、接点機構に付着し、接点の腐食や接触抵抗の増加など
を招く欠点があった。また、製品の洗浄時に、その洗浄
液が製品の内部に浸入するなどの欠点があった。
Therefore, when soldering terminals, corrosive solvents such as flux that are sometimes generated enter the inside of the base through the above-mentioned gaps and adhere to the contact mechanism, resulting in corrosion of the contacts and an increase in contact resistance. . Further, there is a drawback that when cleaning the product, the cleaning liquid infiltrates into the interior of the product.

そこで、上記インサート成形前に、上記端子のインサー
ト部に金属と樹脂とのぬれ性を高める材料を塗布するこ
とが試みられた。(特願昭60−166372号参照) しかしながら、上記端子のインサート部に金属と樹脂と
のぬれ性を高める材料を塗布するのみでは、上記隙間を
確実に封止することは不十分であることが確認された。
Therefore, an attempt has been made to coat the insert portion of the terminal with a material that enhances the wettability between metal and resin before the insert molding. (Refer to Japanese Patent Application No. 60-166372.) However, simply applying a material that enhances the wettability of metal and resin to the insert portion of the terminal is insufficient to reliably seal the gap. confirmed.

[発明の目的] この発明は上記欠点を解決するためになされたもので、
端子と合成樹脂製ベースとのシール性を一層向上させる
ことができる端子ベースの製造方法を提供することを目
的する。
[Object of the invention] This invention was made to solve the above-mentioned drawbacks,
It is an object of the present invention to provide a method for manufacturing a terminal base that can further improve the sealing performance between the terminal and the synthetic resin base.

[発明の構成と効果] この発明に係る端子ベースの製造方法は、インサート成
形前に、端子のインサート部に凹凸部を形成したのち、
この凹凸部に金属と樹脂とのぬれ性を高める材料を塗布
することを特徴とする。
[Configuration and Effects of the Invention] The method for manufacturing a terminal base according to the present invention includes forming an uneven portion on an insert portion of a terminal before insert molding, and then
The method is characterized in that a material that enhances the wettability between metal and resin is applied to the uneven portions.

この発明によれば、端子のインサート部に凹凸部を形成
したのち、この凹凸部に金属と樹脂とのぬれ性を高める
材料を塗布することにより、端子とベースとのシール性
を一層向上させることができ、半田フラックスなどの溶
剤や洗浄液の浸入を有効に防止することができるととも
に、接点の腐食等の不良品の発生が防止できる。
According to the present invention, after forming an uneven portion on the insert portion of the terminal, a material that improves the wettability of metal and resin is applied to the uneven portion, thereby further improving the sealing performance between the terminal and the base. This makes it possible to effectively prevent the infiltration of solvents such as solder flux and cleaning fluids, as well as to prevent the occurrence of defective products such as corrosion of contacts.

[実施例の説明] 以下、この発明の実施例を図面にしたがって説明する。[Explanation of Examples] Embodiments of the present invention will be described below with reference to the drawings.

第1図はこの発明に係る製造方法を説明するための端子
ベースの一例を示し、1はフラットな金属製端子であっ
て、そのインサート部IAには、第2図で示すようなV
字形の溝からなる凹凸部3を形成し、この凹凸部3の外
表面にシラン系、チタン系、クロム系のカップリング剤
、つまりぬれ性を高める材料を浸漬手段等により塗布す
ることにより、上記端子lの表面を改質して樹脂との密
着性を向上させる。
FIG. 1 shows an example of a terminal base for explaining the manufacturing method according to the present invention, in which 1 is a flat metal terminal, and its insert part IA has a V as shown in FIG.
By forming an uneven part 3 consisting of a letter-shaped groove and applying a silane-based, titanium-based, or chromium-based coupling agent, that is, a material that improves wettability, to the outer surface of the uneven part 3 by dipping means or the like, the above-mentioned The surface of the terminal l is modified to improve its adhesion to the resin.

その後、上記端子1を金型のキャビティ内の所定位置に
固定保持した状態で、合成樹脂製ベース2を成形するこ
とにより、インサート部IAのシール性に優れ、半田フ
ラックスや洗浄液等の浸入を確実に防止できる端子ベー
スが得られる。
After that, by molding the synthetic resin base 2 with the terminal 1 fixed and held in a predetermined position in the mold cavity, the insert part IA has excellent sealing properties and ensures that solder flux, cleaning liquid, etc. do not infiltrate. This provides a terminal base that can prevent this from occurring.

上記端子1の凹凸部3は、第3図および第4図で示すよ
うな多数の凹部もしくは凸部からなるものであってもよ
く、また、第5図で示すよに、インサート部IAの両面
に形成されてもよいことはいうまでもない。
The concavo-convex portion 3 of the terminal 1 may be composed of a large number of concave portions or convex portions as shown in FIGS. 3 and 4, or, as shown in FIG. Needless to say, it may be formed as follows.

このように、端子lのインサート部IAに凹凸部3を形
成したのち、この凹凸部3に金属と樹脂とのぬれ性を高
める材料を塗布することにより、端子1とベース2との
シール性を一層向上させることができ、半田フラックス
などの溶剤や洗浄液の浸入を有効に防止することができ
るとともに、接点の腐食等の不良品の発生が防止できる
In this way, after forming the uneven portion 3 on the insert portion IA of the terminal 1, the sealing property between the terminal 1 and the base 2 is improved by applying a material that improves the wettability of metal and resin to the uneven portion 3. Further, it is possible to effectively prevent the infiltration of solvents such as solder flux and cleaning liquids, and also to prevent the occurrence of defective products such as corrosion of contacts.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明に係る製造方法を説明するための端子
ベースの一例を示す要部の斜視図、第2図ないし第4図
は端子の凹凸部の異なる例を示す斜視図、第5図はこの
発明に係る製造方法を説明するための端子ベースの他の
例を示す要部の斜視図である。 1・・・端子、IA・・・インサート部、2・・・ベー
ス、3・・・凹凸部。 第1図        第2図 第5図
FIG. 1 is a perspective view of essential parts showing an example of a terminal base for explaining the manufacturing method according to the present invention, FIGS. 2 to 4 are perspective views showing different examples of uneven portions of the terminal, and FIG. FIG. 2 is a perspective view of main parts showing another example of a terminal base for explaining the manufacturing method according to the present invention. 1... Terminal, IA... insert part, 2... base, 3... uneven part. Figure 1 Figure 2 Figure 5

Claims (1)

【特許請求の範囲】[Claims] (1)端子を合成樹脂製ベースにインサート成形する端
子ベースの製造方法において、上記インサート成形前に
、上記端子のインサート部に凹凸部を形成したのち、こ
の凹凸部に金属と樹脂とのぬれ性を高める材料を塗布す
ることを特徴とする端子ベースの製造方法。
(1) In a method for manufacturing a terminal base in which a terminal is insert-molded into a synthetic resin base, an uneven part is formed on the insert part of the terminal before the insert molding, and the wettability of metal and resin is improved in the uneven part. A method for manufacturing a terminal base, characterized by applying a material that increases the
JP61147737A 1986-06-24 1986-06-24 Manufacture of terminal base Pending JPS633916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61147737A JPS633916A (en) 1986-06-24 1986-06-24 Manufacture of terminal base

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61147737A JPS633916A (en) 1986-06-24 1986-06-24 Manufacture of terminal base

Publications (1)

Publication Number Publication Date
JPS633916A true JPS633916A (en) 1988-01-08

Family

ID=15437001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61147737A Pending JPS633916A (en) 1986-06-24 1986-06-24 Manufacture of terminal base

Country Status (1)

Country Link
JP (1) JPS633916A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01280517A (en) * 1988-05-06 1989-11-10 Tottori Taiho Kogyo Kk Adhesion method for synthetic resin molded product and silicone rubber
JP2012025081A (en) * 2010-07-26 2012-02-09 Denso Corp Resin molding
WO2014038261A1 (en) * 2012-09-04 2014-03-13 日本航空電子工業株式会社 Waterproof connector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01280517A (en) * 1988-05-06 1989-11-10 Tottori Taiho Kogyo Kk Adhesion method for synthetic resin molded product and silicone rubber
JP2012025081A (en) * 2010-07-26 2012-02-09 Denso Corp Resin molding
WO2014038261A1 (en) * 2012-09-04 2014-03-13 日本航空電子工業株式会社 Waterproof connector
JP2014049411A (en) * 2012-09-04 2014-03-17 Japan Aviation Electronics Industry Ltd Waterproof connector
US9564705B2 (en) 2012-09-04 2017-02-07 Japan Aviation Electronics Industry, Limited Waterproof connector

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