JPH06267596A - Crimp metal fitting for electric wire - Google Patents
Crimp metal fitting for electric wireInfo
- Publication number
- JPH06267596A JPH06267596A JP7900793A JP7900793A JPH06267596A JP H06267596 A JPH06267596 A JP H06267596A JP 7900793 A JP7900793 A JP 7900793A JP 7900793 A JP7900793 A JP 7900793A JP H06267596 A JPH06267596 A JP H06267596A
- Authority
- JP
- Japan
- Prior art keywords
- crimp
- metal fitting
- crimping
- welding
- crimped
- 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
Links
Landscapes
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、自動車等のワイヤー
ハーネスの例えば電線−電線間或いは電線−端子間の接
合に用いられる電線用圧着金具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire crimp fitting used for joining electric wires between electric wires or between electric wires and terminals of a wire harness for automobiles and the like.
【0002】[0002]
【従来の技術】従来、自動車,船舶,航空機等の移動体
や産業機械などのワイヤーハーネスにおいて、電線と電
線或いは電線と端子とを接合する場合、圧着金具の機械
圧着による接合が一般に行われており、例えば図7に示
すようにして圧着される。2. Description of the Related Art Conventionally, in a wire harness of a moving body such as an automobile, a ship, an airplane or the like, or an industrial machine, when joining electric wires or electric wires or terminals to each other, mechanical crimping of crimp metal fittings is generally performed. And is crimped as shown in FIG. 7, for example.
【0003】即ち、図7に示すように2本の電線1,2
の接合に用いられる圧着金具3は断面がほぼU字状をな
し、複数個の金具3の一側の下端が長尺の送り板4に一
体に一定間隔で連結して形成され、送り板4が図外の移
動手段により一方向に移動されて各金具3が後述する加
圧装置の位置に順次に搬送される。That is, as shown in FIG.
The crimping metal fitting 3 used for joining the metal plates has a substantially U-shaped cross section, and one end of each of the plurality of metal fittings 3 is integrally connected to the long feed plate 4 at regular intervals. Is moved in one direction by a moving means (not shown), and the respective metal fittings 3 are sequentially conveyed to the position of the pressure device described later.
【0004】このとき、送り板4には各金具3の間隔と
同じピッチで送り穴5が透設され、この送り穴5の位置
に基づいて、金具3の検出が行われる。At this time, the feed plate 4 is provided with the feed holes 5 at the same pitch as the intervals of the metal fittings 3, and the metal fittings 3 are detected based on the positions of the feed holes 5.
【0005】また、各金具3は後述するように加圧圧着
されると同時に、送り板4から切り離されるようになっ
ている。Further, each metal fitting 3 is adapted to be pressure-bonded as described later and, at the same time, separated from the feed plate 4.
【0006】つぎに、加圧装置について説明すると、図
7に示すように、アンビル11とクリンパ12とから成
り、アンビル11は所定位置に固定され、その上面13
は若干の凹状曲面となっており、このアンビル11の上
面13に金具3が載置され、更にその金具3の内側に電
線1,2の露出した芯線部分が配設される。Next, the pressurizing device will be described. As shown in FIG. 7, it comprises an anvil 11 and a crimper 12. The anvil 11 is fixed at a predetermined position, and its upper surface 13 is fixed.
Has a slightly concave curved surface, the metal fitting 3 is placed on the upper surface 13 of the anvil 11, and the exposed core portions of the electric wires 1 and 2 are arranged inside the metal fitting 3.
【0007】また、クリンパ12はアンビル11の上方
に上下動自在に配設され、加圧用の凹部14が下面に形
成され、この凹部14には、クリンパ12の加圧により
変形した金具3を案内する一対の凹状曲面14aと、こ
れら両凹状曲面14aの合流部に位置しアンビル11側
に突出した凸部14bとが形成され、両凹状曲面14a
の下部は外方へ広がって金具3を案内し易いようになっ
ている。The crimper 12 is arranged above the anvil 11 so as to be movable up and down, and a depression 14 for pressurization is formed on the lower surface. The metal fitting 3 deformed by the pressure of the crimper 12 is guided into the depression 14. A pair of concave curved surfaces 14a and a convex portion 14b located at the confluence of the both concave curved surfaces 14a and protruding toward the anvil 11 are formed.
The lower part of the is expanded outward so that the metal fitting 3 can be easily guided.
【0008】尚、クリンパ12は図外の油圧シリンダ等
により上下動される。The crimper 12 is moved up and down by a hydraulic cylinder (not shown).
【0009】そして、送り板4の移動により金具3がア
ンビル11上に搬送されると、金具3の内側に両電線
1,2の芯線部が配設され、クリンパ12が下動して金
具3がアンビル11,クリンパ12により加圧変形さ
れ、金具3が両電線1,2の芯線部に圧着されたのち、
金具3が送り板4から切断分離される。When the metal plate 3 is conveyed onto the anvil 11 by the movement of the feed plate 4, the cores of the electric wires 1 and 2 are arranged inside the metal plate 3, and the crimper 12 moves downward to move the metal plate 3 Is pressed and deformed by the anvil 11 and the crimper 12, and the metal fitting 3 is crimped to the core wires of the electric wires 1 and 2,
The metal fitting 3 is cut and separated from the feed plate 4.
【0010】ところで、このような機械圧着の場合、高
い固着力が得られる反面、接合部分の電気的接触抵抗が
大きくなるため、接触抵抗低減のために機械圧着後の接
合部分を熱溶着その他抵抗溶接或いは超音波溶接するこ
とが考えられており、この熱溶着は例えば図8に示すよ
うにして行われる。By the way, in the case of such mechanical crimping, a high fixing force can be obtained, but the electrical contact resistance of the joining portion becomes large. Therefore, in order to reduce the contact resistance, the joining portion after mechanical crimping is heat-welded or other resistance is applied. Welding or ultrasonic welding is considered, and this heat welding is performed as shown in FIG. 8, for example.
【0011】即ち、図8に示すように、上記したアンビ
ル11,クリンパ12それぞれと同一形状を有する下電
極15及び上電極16が設けられ、上電極16がクリン
パ12と同様油圧シリンダ等により上下動されるように
なっており、圧着後の金具3が下電極15上に載置され
たのち上電極16が下動し、両電極15,16により加
圧された状態で金具3が保持され、両電極15,16に
接続された熱溶着用直流電源17により両電極15,1
6間に電流が通流され、両電極15,16の発熱により
両電線1,2の接合部分が熱溶着されて接触抵抗の低減
が図られる。That is, as shown in FIG. 8, a lower electrode 15 and an upper electrode 16 having the same shapes as the anvil 11 and the crimper 12, respectively, are provided, and the upper electrode 16 moves up and down by a hydraulic cylinder or the like like the crimper 12. The metal fitting 3 after pressure bonding is placed on the lower electrode 15 and then the upper electrode 16 moves downward, and the metal fitting 3 is held in a state of being pressed by both electrodes 15, 16. A DC power supply 17 for heat welding connected to both electrodes 15, 16 is used for both electrodes 15, 1.
An electric current is passed between 6 and the joint portions of the electric wires 1 and 2 are heat-welded by the heat generation of the electrodes 15 and 16 to reduce the contact resistance.
【0012】また、上記した熱溶着以外に周知の抵抗溶
接や超音波溶接により、両電線1,2の接合部分の接触
抵抗を図るようにすることも考えられている。In addition to the above-mentioned heat welding, it is also considered that the contact resistance of the joint portion between the electric wires 1 and 2 is achieved by known resistance welding or ultrasonic welding.
【0013】[0013]
【発明が解決しようとする課題】しかし、上記したよう
に機械圧着後に溶接等を行うと、両電線1,2の接合部
分の接触抵抗は機械圧着のみの場合に比べて低下するも
のの、熱や振動によって電線が損傷を受け、電線強度そ
のものが劣化して両電線1,2の接合部分の固着力が低
下するという問題点がある。However, when welding or the like is performed after the mechanical crimping as described above, the contact resistance of the joint portion of the two electric wires 1 and 2 is lower than that in the case of only the mechanical crimping, but the heat or There is a problem that the electric wire is damaged by the vibration, the electric strength of the electric wire is deteriorated, and the fixing force of the joint portion between the electric wires 1 and 2 is reduced.
【0014】また、電線と端子との接合においても同様
の問題が生じる。A similar problem also occurs in joining the wire and the terminal.
【0015】そこで、この発明は上記のような問題点を
解消するためになされたもので、固着力の低下を招くこ
となく接触抵抗を低減できる電線用圧着金具を提供する
ことを目的とする。Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide a wire crimping metal fitting capable of reducing the contact resistance without lowering the fixing force.
【0016】[0016]
【課題を解決するための手段】この発明に係る電線用圧
着金具は、電線の樹脂を剥取って露出した芯線部に圧着
されたのち溶接される電線用圧着金具であって、長尺の
金具基体と、前記基体の一部に一体に形成された1対の
圧着片からなりこれら両圧着片のわん曲加工により前記
芯線部に圧着される第1の圧着部と、前記基体の他の一
部に一体に形成された1対の圧着片からなりこれら両圧
着片のわん曲加工により前記芯線部に圧着されたのち溶
接される第2の圧着部とを備えたことを特徴としてい
る。A wire crimping metal fitting according to the present invention is an electric wire crimping metal fitting, in which resin of an electric wire is peeled off and crimped to an exposed core wire portion and then welded. A base and a first crimp portion that is crimped to the core wire portion by bending the two crimp pieces by integrally bending the pair of crimp pieces on a part of the base; It is characterized by comprising a pair of crimping pieces integrally formed on the portion, and a second crimping portion which is crimped to the core wire portion by bending of these crimping pieces and then welded.
【0017】[0017]
【作用】この発明においては、圧着のみ施される第1の
圧着部と、圧着後に溶接される第2の圧着部とを金具基
体に一体に形成したため、溶接による電線の損傷は第2
の圧着部の位置に限られ、第1の圧着部により所定の固
着力を維持しつつ第2の圧着部における溶接によって接
触抵抗の低減が図れる。According to the present invention, the first crimping portion, which is only crimped, and the second crimping portion, which is welded after crimping, are integrally formed on the metal fitting base.
The contact resistance can be reduced by welding at the second crimping portion while maintaining a predetermined fixing force by the first crimping portion only at the position of the crimping portion.
【0018】[0018]
【実施例】図1はこの発明の電線用圧着金具の一実施例
の平面図、図2は圧着した状態の斜視図、図3は図2の
一部を切断した側面図、図4,図5は動作説明図、図6
は他の実施例の平面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a plan view of an embodiment of a crimp fitting for electric wires according to the present invention, FIG. 2 is a perspective view in a crimped state, FIG. 3 is a side view in which a part of FIG. 2 is cut, FIG. 5 is an operation explanatory diagram, FIG.
[Fig. 6] is a plan view of another embodiment.
【0019】図1に示すように、圧着金具20は、長尺
の金具基体21と、この基体21の前,後の両端部に一
体に1対ずつ形成された圧着片22からなりこれら両圧
着片22のわん曲加工により複数の電線の絶縁被覆樹脂
を剥取って露出した芯線部に圧着される第1の圧着部2
3a,23bと、基体21のほぼ中央部に一体に形成さ
れた1対の圧着片24からなりこれら両圧着片24のわ
ん曲加工により上記した芯線部に圧着されたのち溶接さ
れる第2の圧着部25とにより構成されている。As shown in FIG. 1, the crimping metal fitting 20 comprises a long metal fitting base 21 and crimping pieces 22 integrally formed in pairs at both front and rear ends of the base 21. The first crimping portion 2 that is crimped to the exposed core wire portion by stripping the insulating coating resin of a plurality of electric wires by bending the piece 22
3a and 23b, and a pair of crimping pieces 24 integrally formed in substantially the central portion of the base body 21. The second crimping pieces 24 are crimped to the above-described core wire portion by bending and then welded. It is constituted by the crimping portion 25.
【0020】そして、図2,図3に示すように、3本の
電線26a,26b,26cを接合する場合に、各電線
26a〜26cの端部の絶縁被覆樹脂が剥取られて露出
された芯線部分27a,27b,27cが圧着金具20
の上側に配設され、図7に示すアンビル,クリンパとか
らなる圧着装置と同様の構成の圧着装置により圧着金具
20の各圧着部23a,23b,25がわん曲変形さ
れ、圧着金具20が各芯線部27a〜27cに圧着され
る。Then, as shown in FIGS. 2 and 3, when the three electric wires 26a, 26b and 26c are joined, the insulating coating resin at the ends of the electric wires 26a to 26c is peeled off and exposed. Core wire portions 27a, 27b, 27c are crimp fittings 20
Of the anvil and crimper shown in FIG. 7, the crimping device having the same configuration as the crimping device 20 shown in FIG. The core portions 27a to 27c are crimped.
【0021】その後、抵抗溶接装置或いは超音波溶接装
置により圧着された状態の金具20の第2の圧着部25
に対してのみ溶接が施され、圧着金具3による各電線2
6a〜26cの接合が完了する。After that, the second crimping portion 25 of the metal fitting 20 is crimped by the resistance welding device or the ultrasonic welding device.
Welding is applied only to each wire 2 by crimp fitting 3
The joining of 6a to 26c is completed.
【0022】このようにして接合した電線26a〜26
cの固着力,接触抵抗を、図7に示すような金具3の圧
着のみの場合、及び図8に示すような金具3の圧着に更
に溶接を加えた場合と比較すると、図4,図5に示すよ
うな結果が得られた。ここで、電線サイズは0.5mm
2 のものを3本使用し、図4,図5中の○印は本実施例
を示し、△印は圧着のみの場合(従来)、□印は圧着に
溶接を加えた場合(従来)をそれぞれ示す。The electric wires 26a to 26 joined in this way
Comparing the fixing force and contact resistance of c with the case where only the metal fitting 3 is crimped as shown in FIG. 7 and when the metal fitting 3 is crimped with welding as shown in FIG. The results shown in are obtained. Here, the wire size is 0.5 mm
3 of 2 are used, and ○ mark in Fig. 4 and Fig. 5 shows this embodiment, △ mark indicates the case of crimping only (conventional), □ mark indicates the case of welding the crimping (conventional). Shown respectively.
【0023】図4に示す固着力の結果から明らかなよう
に、本実施例の場合、圧着のみの場合には及ばないもの
の圧着に溶接を加えた場合よりも高い固着力を得ること
ができ、図5に示す接触抵抗の結果から明らかなよう
に、本実施例の場合、圧着に溶接を加えた場合とほぼ同
等の接触抵抗となり、圧着のみの場合と比べるとほぼ1
桁低い抵抗値が得られている。As is clear from the results of the fixing force shown in FIG. 4, in the case of this embodiment, a higher fixing force can be obtained as compared with the case where welding is added to the crimping, although it is not sufficient in the case of only crimping. As is clear from the results of the contact resistance shown in FIG. 5, in the case of the present embodiment, the contact resistance is almost the same as that when welding is added to the crimping, which is almost 1 in comparison with the case where only crimping is performed.
An order of magnitude lower resistance is obtained.
【0024】これは、圧着金具20の第2の圧着部25
にだけ溶接を施すことにより、損傷を受ける部分が第2
の圧着部25の近辺に限られ、固着力をあまり低下させ
ずに接触抵抗を低減でき、更に第1の圧着部23a,2
3bにより十分な固着力を得ることができるためであ
る。This is the second crimp portion 25 of the crimp fitting 20.
By welding only on the
The contact resistance is limited to the vicinity of the crimping portion 25, and the contact resistance can be reduced without significantly lowering the fixing force.
This is because 3b can provide a sufficient fixing force.
【0025】従って、上記実施例によれば、複数の電線
26a〜26cを接合する場合に十分な固着力を保持し
つつ接触抵抗を低減することができる。Therefore, according to the above embodiment, it is possible to reduce the contact resistance while maintaining a sufficient fixing force when joining the plurality of electric wires 26a to 26c.
【0026】なお、接合する電線数は上記した3本に限
らず、2本或いは4本以上であっても同様の効果を得る
ことができる。The number of electric wires to be joined is not limited to the above three, but the same effect can be obtained even if the number of electric wires is two or four or more.
【0027】また、図6は他の実施例の平面図であり、
電線と端子とを接合する場合に適用される例である。FIG. 6 is a plan view of another embodiment,
This is an example applied when joining an electric wire and a terminal.
【0028】図6に示すように、図1に示す金具基体2
1の前端にわん曲変形により電線の皮剥ぎ端の樹脂を把
持する1対の樹脂把持片31が一体に形成されると共
に、基体21の後端に端子32が一体に形成されて圧着
金具33が構成されている。As shown in FIG. 6, the metal fitting base 2 shown in FIG.
A pair of resin gripping pieces 31 for gripping the resin at the stripping end of the electric wire by bending deformation are integrally formed at the front end of the base wire 1, and a terminal 32 is integrally formed at the rear end of the base body 21 to form a crimp fitting 33. Is configured.
【0029】従って、この圧着金具33によれば、電線
と端子とを接合する場合において十分な固着力を保持し
つつ接触抵抗を低減することができる。Therefore, according to the crimp fitting 33, it is possible to reduce the contact resistance while maintaining a sufficient fixing force when joining the electric wire and the terminal.
【0030】なお、上記両実施例では、第1の圧着部を
2個形成した場合について説明したが、1個或いは3個
以上であってもよく、第2の圧着部が2個以上であって
もよいのは勿論である。In both of the above embodiments, the case where two first crimp portions are formed has been described, but the number of the first crimp portions may be one or three or more, and the number of the second crimp portions is two or more. Of course, it is okay.
【0031】[0031]
【発明の効果】以上のように、この発明の電線用圧着金
具によれば、圧着のみ施される第1の圧着部と、圧着後
に溶接される第2の圧着部とを金具基体に一体に形成す
ることにより、溶接による電線の損傷は第2の圧着部の
位置に限られるため、電線と端子とを接合する場合にお
いて十分な固着力を保持しつつ接触抵抗を低減すること
ができ、駆動電源回路などでは発熱によるエネルギーロ
スを防ぐことができ、センサー等の低電圧低電流回路で
は信号特性の劣化を防止,或いは低減することが可能に
なる。As described above, according to the electric wire crimping fitting of the present invention, the first crimping portion that is only crimped and the second crimping portion that is welded after crimping are integrally formed on the fitting base. By forming the wire, damage to the electric wire due to welding is limited to the position of the second crimping portion, so that when the electric wire and the terminal are joined, the contact resistance can be reduced while maintaining a sufficient fixing force. Energy loss due to heat generation can be prevented in a power supply circuit or the like, and deterioration of signal characteristics can be prevented or reduced in a low-voltage low-current circuit such as a sensor.
【図1】この発明の電線用圧着金具の一実施例の平面図
である。FIG. 1 is a plan view of an embodiment of an electric wire crimping fitting of the present invention.
【図2】図1の金具を圧着した状態の斜視図である。FIG. 2 is a perspective view showing a state in which the metal fitting of FIG. 1 is crimped.
【図3】図2の一部を切断した側面図である。FIG. 3 is a side view in which a part of FIG. 2 is cut.
【図4】図1の動作説明図である。FIG. 4 is an operation explanatory diagram of FIG. 1.
【図5】図1の動作説明図である。5 is an operation explanatory diagram of FIG. 1. FIG.
【図6】この発明の他の実施例の平面図である。FIG. 6 is a plan view of another embodiment of the present invention.
【図7】従来例の説明図である。FIG. 7 is an explanatory diagram of a conventional example.
【図8】他の従来例の説明図である。FIG. 8 is an explanatory diagram of another conventional example.
21 金具基体 22,24 圧着片 23a,23b 第1の圧着部 25 第2の圧着部 26a,26b,26c 電線 27a,27b,27c 芯線部 21 metal fitting base 22,24 crimping piece 23a, 23b first crimping section 25 second crimping section 26a, 26b, 26c electric wire 27a, 27b, 27c core section
Claims (1)
圧着されたのち溶接される電線用圧着金具であって、 長尺の金具基体と、前記基体の一部に一体に形成された
1対の圧着片からなりこれら両圧着片のわん曲加工によ
り前記芯線部に圧着される第1の圧着部と、前記基体の
他の一部に一体に形成された1対の圧着片からなりこれ
ら両圧着片のわん曲加工により前記芯線部に圧着された
のち溶接される第2の圧着部とを備えたことを特徴とす
る電線用圧着金具。1. A crimp metal fitting for an electric wire, which is formed by stripping resin of an electric wire and crimping to an exposed core wire portion, and then welding, which is formed integrally with a long metal fitting base and a part of the base. A pair of crimping pieces, the first crimping portion being crimped to the core wire portion by bending both of these crimping pieces, and a pair of crimping pieces integrally formed on the other part of the base. A crimp metal fitting for an electric wire, comprising: a second crimp portion which is crimped to the core wire portion by bending the both crimping pieces and then welded.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7900793A JPH06267596A (en) | 1993-03-11 | 1993-03-11 | Crimp metal fitting for electric wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7900793A JPH06267596A (en) | 1993-03-11 | 1993-03-11 | Crimp metal fitting for electric wire |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06267596A true JPH06267596A (en) | 1994-09-22 |
Family
ID=13677896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7900793A Pending JPH06267596A (en) | 1993-03-11 | 1993-03-11 | Crimp metal fitting for electric wire |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06267596A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017208211A (en) * | 2016-05-18 | 2017-11-24 | 古河電気工業株式会社 | Terminal-equipped electric wire |
CN112615168A (en) * | 2020-12-07 | 2021-04-06 | 西安航天动力测控技术研究所 | Compact connector and method for enameled wire and wire |
-
1993
- 1993-03-11 JP JP7900793A patent/JPH06267596A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017208211A (en) * | 2016-05-18 | 2017-11-24 | 古河電気工業株式会社 | Terminal-equipped electric wire |
CN112615168A (en) * | 2020-12-07 | 2021-04-06 | 西安航天动力测控技术研究所 | Compact connector and method for enameled wire and wire |
CN112615168B (en) * | 2020-12-07 | 2022-08-12 | 西安航天动力测控技术研究所 | Compact connector and method for enameled wire and wire |
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