JPH0357010Y2

JPH0357010Y2 -

Info

Publication number: JPH0357010Y2
Application number: JP29886U
Authority: JP
Priority date: 1986-01-08
Filing date: 1986-01-08
Publication date: 1991-12-25
Also published as: JPS62112859U

Description

【考案の詳細な説明】〔考案の目的〕産業上の利用分野本考案は、電線の芯線圧接部に改良を施した圧
接端子に関する。[Detailed description of the invention] [Purpose of the invention] Industrial application field The present invention relates to a pressure contact terminal in which the core wire pressure contact portion of an electric wire is improved.

従来の技術電線の芯線を溝（スロツト）に圧入して端子と
電線とを接続するタイプの圧接端子は、圧接部す
なわち溝の寸法精度と圧接荷重の確保が重要であ
る。この圧接端子には、第５図のように基板ａの
両側の起立側壁ｂ，ｂの両側をコ字状に折り曲げ
て、対峙する折曲片ｃ，ｃ間に溝ｄを形成したも
のと、第６図のように、基板ａの両側の起立側壁
ｂ，ｂの一端側をそれぞれ相対する側壁に向けて
Ｌ字側に折り曲げ、この折曲片ｅにＵ溝ｆを打抜
きにより形成したものがある。BACKGROUND TECHNOLOGY In a pressure contact terminal of the type in which a core wire of an electric wire is press-fitted into a groove (slot) to connect a terminal and an electric wire, it is important to ensure the dimensional accuracy of the pressure contact portion, that is, the groove, and the pressure contact load. As shown in FIG. 5, this press-contact terminal has a structure in which both sides of the upright side walls b, b on both sides of the board a are bent into a U-shape, and a groove d is formed between the opposing bent pieces c, c. As shown in Fig. 6, one end of the upright side walls b, b on both sides of the board a is bent toward the opposing side wall in an L-shape, and a U groove f is formed in this bent piece e by punching. be.

しかし、前者（第５図）の圧接端子では、溝ｄ
を曲げ加工により形成するために、寸法精度の確
保が困難で、第７図イに模式的に示す梁部材ｇの
ように有効バネ長さが長いから、安定した圧接荷
重を得にくい欠点がある。これに対し、後者（第
６図）では、Ｕ溝ｆを打抜き形成するから、寸法
精度もよく、また、第７図ロの梁部材g′のように
有効バネ長さが短い利点がある反面、Ｕ溝ｆの左
右における折曲基端側e₁と自由縁側e₂とでバネ特
性が異なるから、芯線圧入時に弱い方の自由縁側
e₂の変形が大きく、また、Ｕ溝ｆの底部に応力が
集中しやく充分な圧接強度を得るのが困難であ
る。 However, in the former (Fig. 5) pressure contact terminal, the groove d
Since it is formed by bending, it is difficult to ensure dimensional accuracy, and as the effective spring length is long, as shown in beam member g schematically shown in Figure 7A, it is difficult to obtain a stable pressure welding load. . On the other hand, in the latter case (Fig. 6), since the U-groove f is formed by punching, the dimensional accuracy is good, and the effective spring length is short like the beam member g' in Fig. 7 (b). , since the spring characteristics are different between the bending proximal end e ₁ and the free edge e ₂ on the left and right sides of the U-groove f, the weaker free edge side is used when press-fitting the core wire.
The deformation of e ₂ is large, and stress tends to concentrate at the bottom of the U-groove f, making it difficult to obtain sufficient pressure welding strength.

考案が解決しようとする問題点本考案の目的は、上記の問題点を解決し、芯線
圧接部の寸法精度を確保するのが容易で、充分な
圧接強度の得られる圧接端子を提供するにある。Problems to be Solved by the Invention The purpose of the invention is to solve the above-mentioned problems, and to provide a pressure contact terminal in which it is easy to ensure the dimensional accuracy of the core wire pressure contact part, and sufficient pressure contact strength can be obtained. .

[Structure of the idea]

問題点を解決するための手段図面を参照して説明すると、本考案の圧接端子
Ａは、第１図に示すように、薄板金から形成さ
れ、基板１の前部に端子接触部A₁、後部に電線
接続部A₂を連成して成る。そして、端子接触部
A₁は、基板１の一側から連成された相手端子を
受け入れる受承枠２と、基板１の先端から受承枠
２内に折り返し形成された接触片３を有し、電線
接続部A₂の後端には電線挿通孔４を有する電線
保持片５が立設されている。 Means for Solving the Problems To explain with reference to the drawings, the pressure contact terminal A of the present invention is formed from a thin sheet metal, as shown in FIG _. It consists of a wire connection part _A2 connected to the rear part. And the terminal contact part
A ₁ has a receiving frame 2 that receives a mating terminal connected from one side of the board 1, and a contact piece 3 that is folded back into the receiving frame 2 from the tip of the board 1, and the wire connecting part A A wire holding piece 5 having a wire insertion hole 4 is erected at the rear end of _{the wire} .

以上は従来の圧接端子と基本構成を同じくする
が、本考案において電線接続部A₂の芯線圧接部
６は、第２図に拡大して示すように、基板両側の
起立側壁７，７′から折り曲げ連成した二枚の折
曲片８，８′にＵ溝９を設け、該折曲片８，８′を
重ね合せて形成すると共に、折曲片８，８′の折
曲基板側８ａに設けた凹部１０に、折曲片８，
８′の自由縁側８ｂに外側に向けて設けた突部１
１を嵌合せしめたことを特徴とする。 The above basic configuration is the same as that of the conventional pressure contact terminal, but in the present invention, the core wire pressure contact part 6 of the wire connection part _A2 is extended from the upright side walls 7, 7' on both sides of the board, as shown in an enlarged view in FIG. A U-groove 9 is provided in the two bent pieces 8, 8' that are connected to each other, and the bent pieces 8, 8' are formed by overlapping each other. In the recess 10 provided in the bending piece 8,
Projection 1 provided outward on the free edge side 8b of 8'
1 are fitted together.

作用芯線圧接部６のＵ溝９に電線１２を圧入する
と、第４図イに示すように、折曲片８，８′の折
曲基端側８ａと自由縁側８ｂに押し広げる方向に
力Ｆが作用する。この際、バネ性の弱い自由縁側
８ｂは、折曲片８′，８のバネ性の強い折曲基端
側８ａに突部１１と凹部１０との係合により支持
補強される。従つて、二枚の折曲片８，８′のＵ
溝９の両側の折曲基端側８ａと自由縁側８ｂは相
互に係合して、バネ性が左右同一強度となるか
ら、充分な圧接強度が得られる。Operation When the electric wire 12 is press-fitted into the U-groove 9 of the core wire pressure welding part 6, a force is applied in the direction of pushing the bending base ends 8a and free edge sides 8b of the bending pieces 8, 8' apart, as shown in FIG. 4A. F acts. At this time, the free edge side 8b, which has a weak spring property, is supported and reinforced by the bent proximal end side 8a, which has a strong spring property, of the bent pieces 8' and 8 by the engagement between the protrusion 11 and the recess 10. Therefore, the U of the two bent pieces 8, 8'
The bent proximal end 8a and the free edge 8b on both sides of the groove 9 engage with each other, and the spring properties are the same on both sides, so that sufficient pressure contact strength can be obtained.

実施態様第１図および第２図に示す凹部１０と突部１１
は、打出し加工により湾曲するように形成されて
いるが、第３図および第４図ロに示すように、プ
レス加工により切り出して、一方を穴部１０′、
他方を斜片１１′として形成してもよい。また、
穴部１０′と斜片１１′は、第３図のように折曲片
８，８′のＵ溝９の両側に複数個（図示の例では
２個）設けてもよい。なお、突部１１と斜片１
１′は、電線圧入時に一方の折曲片８，８′の折曲
基端側８ａに係合するように外側に向けて設ける
が、第４図ハの如く内側に向けると力Ｆは相互に
離れる方向に作用し、本考案による効果は得られ
ない。Embodiment Recess 10 and protrusion 11 shown in FIGS. 1 and 2
is formed to be curved by punching, but as shown in FIGS. 3 and 4B, it is cut out by press working, and one side has a hole 10',
The other may be formed as a diagonal piece 11'. Also,
A plurality of holes 10' and diagonal pieces 11' (two in the illustrated example) may be provided on both sides of the U-groove 9 of the bent pieces 8, 8' as shown in FIG. In addition, the protrusion 11 and the diagonal piece 1
1' is provided facing outward so as to engage with the bent base end 8a of one of the bent pieces 8, 8' when press-fitting the electric wire, but when it is directed inward as shown in Fig. 4C, the force F is mutually Therefore, the effect of the present invention cannot be obtained.

また、圧接端子Ａの相手端子との端子接触部
A₁は、第１図のように雌型に限らず、雄型でも
よい。 In addition, the terminal contact part of the pressure welding terminal A with the mating terminal
_A1 is not limited to the female type as shown in Fig. 1, but may be male type.

[Effect of idea]

以上から明らかな如く、本考案の圧接端子は、
芯線圧接部の寸法精度の確保も容易で、充分な圧
接強度を有し、安定した電気的接続状態を得るこ
とができる。 As is clear from the above, the pressure contact terminal of the present invention is
It is easy to ensure the dimensional accuracy of the core wire press-contact portion, and it has sufficient press-contact strength, making it possible to obtain a stable electrical connection state.

[Brief explanation of the drawing]

第１図は本考案圧接端子を示す斜視図、第２図
は同上の芯線圧接部の拡大斜視図、第３図は本考
案の他の実施態様を示す斜視図、第４図イ〜ハは
それぞれ芯線圧接部の作用を示す断面図である。
第５図および第６図は従来の圧接端子を示す斜視
図、第７図イ，ロはそれぞれ同上のバネ特性を示
す模式図である。Ａ……圧接端子、A₁……端子接触部、A₂……
電線接続部、１……基板、３……接触片、５……
電線保持片、６……芯線圧接部、７，７′……起
立側壁、８，８′……折曲片、９……Ｕ溝、１０
……凹部、１１……突部、８ａ……折曲基端側、
８ｂ……自由縁側。 Fig. 1 is a perspective view showing the pressure contact terminal of the present invention, Fig. 2 is an enlarged perspective view of the same core wire pressure contact part, Fig. 3 is a perspective view showing another embodiment of the present invention, and Figs. FIG. 7 is a cross-sectional view showing the action of each core wire pressure welding portion.
5 and 6 are perspective views showing a conventional press-contact terminal, and FIGS. 7A and 7B are schematic views showing the spring characteristics of the same, respectively. A... Pressure contact terminal, A ₁ ... Terminal contact part, A ₂ ...
Wire connection part, 1... Board, 3... Contact piece, 5...
Wire holding piece, 6... Core wire pressure welding part, 7, 7'... Standing side wall, 8, 8'... Bending piece, 9... U groove, 10
... recess, 11 ... protrusion, 8a ... bending base end side,
8b...Free veranda.

Claims

[Scope of Claim for Utility Model Registration] The front part of the board is equipped with a terminal contact part with a contact piece for connecting with a mating terminal, the rear part is equipped with a core wire press-connecting part with a U-groove for pressure contact with the core wire of the electric wire, and a wire holding piece. In a press-contact terminal formed by connecting electric wire connection parts, the core wire press-contact part is provided with the U-groove 9 in two bent pieces 8, 8' which are bent and connected from the upright side walls 7, 7' on both sides of the board, The bent pieces 8, 8' are formed by overlapping each other, and the bent pieces 8', 8' are formed in the recesses or holes 10, 10' provided on the bent base end side of the bent pieces 8, 8'.
A press-contact terminal characterized in that a projection or diagonal piece 11, 11' protruding outward from the free edge of 8 is fitted.