JP2010080189A - Terminal fitting and electric wire with terminal fitting - Google Patents

Terminal fitting and electric wire with terminal fitting Download PDF

Info

Publication number
JP2010080189A
JP2010080189A JP2008245884A JP2008245884A JP2010080189A JP 2010080189 A JP2010080189 A JP 2010080189A JP 2008245884 A JP2008245884 A JP 2008245884A JP 2008245884 A JP2008245884 A JP 2008245884A JP 2010080189 A JP2010080189 A JP 2010080189A
Authority
JP
Japan
Prior art keywords
wire
core wire
plate
electric wire
terminal
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
JP2008245884A
Other languages
Japanese (ja)
Inventor
Takashi Sawada
尚 澤田
Kazumoto Chikada
一元 近田
Original Assignee
Sumitomo Wiring Syst Ltd
住友電装株式会社
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 Sumitomo Wiring Syst Ltd, 住友電装株式会社 filed Critical Sumitomo Wiring Syst Ltd
Priority to JP2008245884A priority Critical patent/JP2010080189A/en
Publication of JP2010080189A publication Critical patent/JP2010080189A/en
Pending legal-status Critical Current

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal fitting restrained from elongation, and to provide an electric wire having the same. <P>SOLUTION: A surface, abutting on a core wire 21, out of a bottom plate part 48 of the terminal fitting is formed with a twin-supported elastic deformation part 50 whose both ends along the axial direction of the core wire 21 are connected to the bottom plate part 48. Force for seeking to push back the core wire 21 to the wire barrel part 47, 47 side is thereby applied by the elastic deformation part 50 in addition to force for pressing the core wire 21 to the bottom plate 48 side by the wire barrel parts 47, 47. The forces for pressing the core wire 21 from the mutually opposite sides are applied to obtain the force for holding the core wire 21 more strongly between the wire barrel parts 47, 47 and the bottom plate part 48. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、端子金具及び端子金具付き電線に関する。   The present invention relates to a terminal fitting and an electric wire with terminal fitting.
被覆電線に端子金具を取り付けるに際して被覆電線の露出した芯線を端子金具に圧着接続することが行われる(特許文献1参照)。
ここで、芯線を端子金具に圧着するに際しては、例えば、底板部の側縁から立ち上げた一対のバレル部を有するオープンバレル型の端子金具をアンビル上に載置してその底板部に芯線を宛がう。そして、端子金具の上方に配したクリンパを降下させると、バレル部が芯線を包み込むように徐々に変形するとともに、バレル部の先端部が芯線を押し潰すように芯線に食い込むことにより圧着が行われる。
特開2007−12341公報
When the terminal fitting is attached to the covered electric wire, the exposed core wire of the covered electric wire is crimped and connected to the terminal fitting (see Patent Document 1).
Here, when crimping the core wire to the terminal fitting, for example, an open barrel type terminal fitting having a pair of barrels raised from the side edge of the bottom plate portion is placed on the anvil, and the core wire is attached to the bottom plate portion. Address. When the crimper arranged above the terminal fitting is lowered, the barrel portion is gradually deformed so as to wrap the core wire, and the tip of the barrel portion is pressed into the core wire so that the core wire is crushed. .
JP 2007-12341 A
ところで、バレル部及び芯線を圧着する力が弱いと、芯線が強い力でかしめられていないたため、芯線が端子金具に強固に保持されておらず(保持力が弱く)、芯線の抜けや位置ずれを起こすことが懸念される。
一方、強い力で圧着した場合には、芯線が押し潰され、その下の底板部に強い力がかかる。このとき底板部が押し潰されて芯線の軸方向に伸びが生じ、これにより、端子金具全体としても伸びが生じるおそれがある。
このような端子金具の伸びにより、端子金具がコネクタ等のキャビティに収容された場合に、キャビティからはみ出す等の不具合が懸念される。
By the way, if the force to crimp the barrel part and the core wire is weak, the core wire is not crimped with a strong force, so the core wire is not firmly held by the terminal fitting (the holding force is weak), and the core wire is disconnected or misaligned. There is a concern to cause.
On the other hand, when crimping with a strong force, the core wire is crushed and a strong force is applied to the bottom plate portion below the core wire. At this time, the bottom plate portion is crushed and stretched in the axial direction of the core wire, which may cause stretching of the terminal fitting as a whole.
Due to the extension of the terminal fitting, when the terminal fitting is accommodated in a cavity such as a connector, there is a concern that the terminal fitting protrudes from the cavity.
本発明は上記のような事情に基づいて完成されたものであって、端子金具の伸びを抑制しつつ電線保持力を確保することができる端子金具及び端子金具付き電線を提供することを目的とする。   This invention was completed based on the above situations, Comprising: It aims at providing the electric wire with a terminal metal fitting and a terminal metal fitting which can ensure electric wire holding power, suppressing the extension of a terminal metal fitting. To do.
本発明に係る端子金具は、電線の接続される電線接続部と、前記電線接続部と一体に設けられ、前記電線の軸方向に沿って前記電線接続部と並び、相手側端子部と接続される端子接続部と、を備え、
前記電線接続部は、前記電線の芯線が載置される底板部と、この底板部の両側部から延出されたバレル部と、を有し、
前記底板部のうち前記芯線と接する面には、前記芯線の圧着の際に圧力を受けて変形し、前記芯線の圧着後において前記芯線に弾発力を及ぼす弾性変形部が、前記芯線の軸方向に沿った両端部が前記底板部に連なる両持ち状に形成されているところに特徴を有する(手段1)。
The terminal fitting according to the present invention is provided integrally with the electric wire connecting portion to which an electric wire is connected and the electric wire connecting portion, and is aligned with the electric wire connecting portion along the axial direction of the electric wire and connected to the counterpart terminal portion. A terminal connection part,
The electric wire connecting portion has a bottom plate portion on which the core wire of the electric wire is placed, and barrel portions extended from both side portions of the bottom plate portion,
The surface of the bottom plate portion that is in contact with the core wire is deformed by receiving pressure when the core wire is crimped, and an elastically deforming portion that exerts an elastic force on the core wire after the core wire is crimped is an axis of the core wire. It is characterized in that both end portions along the direction are formed in a doubly supported shape connected to the bottom plate portion (means 1).
手段1によれば、バレル部が芯線を底板部側に押圧する力だけでなく、弾性変形部によりバレル部側に芯線を押し戻そうとする力が与えられる。それら互いに反対方向から芯線を押し付ける力が与えられることにより、より強く芯線をバレル部と底板部との間に保持する力を得ることができる。
すなわち、圧着の際にバレル部が芯線を押圧する力を若干弱くしても、弾性変形部により電線保持力を確保することができるから、強い力で圧着することによる端子金具の伸びを抑制することができる。
また、弾性変形部は、両持ち状であるから、片持ち状と比較して、弾性変形部の両端部が底板部に支持されることで、弾性変形部からの負荷を2箇所に分散させることができるだけでなく、2個所で生じる弾性力を芯線側に作用させることができる。
According to the means 1, not only the force that the barrel portion presses the core wire toward the bottom plate portion, but also the force that pushes the core wire back toward the barrel portion by the elastic deformation portion is given. By applying a force for pressing the core wires from opposite directions, it is possible to obtain a stronger force for holding the core wire between the barrel portion and the bottom plate portion.
That is, even if the force that the barrel portion presses the core wire during the crimping is slightly weakened, the elastic deformation portion can secure the electric wire holding force, thereby suppressing the extension of the terminal fitting due to the crimping with a strong force. be able to.
In addition, since the elastically deforming part is a cantilevered shape, both ends of the elastically deforming part are supported by the bottom plate part, so that the load from the elastically deforming part is distributed in two places compared to the cantilevered form. In addition, the elastic force generated at two locations can be applied to the core wire side.
手段1において、前記電線の絶縁被覆の上から一対のかしめ片をかしめることで前記電線を保持する保持手段を備えるようにしてもよい(手段2)。
このようにすればバレル部のみで電線を保持するよりも、確実に電線を保持することができる。
The means 1 may include a holding means for holding the electric wire by caulking a pair of caulking pieces from above the insulating coating of the electric wire (means 2).
If it does in this way, an electric wire can be held reliably rather than holding an electric wire only by a barrel part.
手段1又は手段2の端子金具の前記底板部に被覆電線の露出した芯線を載置して前記バレル部によって前記芯線を包み込むように圧着してなる端子金具付き電線としてもよい(手段3)。   It is good also as an electric wire with a terminal metal fitting which mounts the core wire which the covered electric wire exposed to the said baseplate part of the terminal metal fitting of the means 1 or the means 2, and crimps | bonds so that the said core wire may be wrapped by the said barrel part (means 3).
本発明に係る端子金具は、電線の接続される電線接続部と、前記電線接続部と一体に設けられ、前記電線の軸方向に沿って前記電線接続部と並び、相手側端子部と接続される端子接続部と、を備え、
前記電線接続部は、前記電線の芯線が載置される底板部と、この底板部の両側部から延出されたバレル部と、を有し、
前記底板部のうち前記芯線と接する面には、前記芯線の圧着の際に圧力を受けて変形し、前記芯線の圧着後において前記芯線に弾発力を及ぼす弾性変形部が、前記芯線の軸方向と直交する方向における両端部が前記底板部に連なる両持ち状に形成されているところに特徴を有する(手段4)。
The terminal fitting according to the present invention is provided integrally with the electric wire connecting portion to which an electric wire is connected and the electric wire connecting portion, and is aligned with the electric wire connecting portion along the axial direction of the electric wire and connected to the counterpart terminal portion. A terminal connection part,
The electric wire connecting portion has a bottom plate portion on which the core wire of the electric wire is placed, and barrel portions extended from both side portions of the bottom plate portion,
The surface of the bottom plate that is in contact with the core wire is deformed by pressure when the core wire is crimped, and an elastic deformation portion that exerts an elastic force on the core wire after the core wire is crimped is an axis of the core wire. It is characterized in that both end portions in a direction orthogonal to the direction are formed in a cantilever shape continuous with the bottom plate portion (means 4).
手段4によれば、バレル部が芯線を底板部側に押圧する力だけでなく、弾性変形部によりバレル部側に芯線を押し戻そうとする力が与えられる。それら互いに反対方向から芯線を押し付ける力が与えられることにより、より強く芯線をバレル部と底板部との間に保持する力を得ることができる。
すなわち、圧着の際にバレル部が芯線を押圧する力を若干弱くしても、その分、弾性変形部からの力により芯線を保持することができるから、強い力で圧着することによる端子金具の伸びを抑制しつつ電線保持力を確保することができる。
また、弾性変形部は、両持ち状であるから、片持ち状と比較して、弾性変形部の両端部が底板部に支持されることで、弾性変形部からの負荷を2箇所に分散させることができるだけでなく、2個所で生じる弾性力を芯線側に作用させることができる。
According to the means 4, not only the force that the barrel portion presses the core wire toward the bottom plate portion but also the force that tries to push the core wire back toward the barrel portion by the elastic deformation portion. By applying a force for pressing the core wires from opposite directions, it is possible to obtain a stronger force for holding the core wire between the barrel portion and the bottom plate portion.
That is, even if the force that the barrel portion presses the core wire is slightly weakened during crimping, the core wire can be held by the force from the elastically deformable portion. The wire holding force can be secured while suppressing the elongation.
In addition, since the elastically deforming part is a cantilevered shape, both ends of the elastically deforming part are supported by the bottom plate part, so that the load from the elastically deforming part is distributed in two places compared to the cantilevered form. In addition, the elastic force generated at two locations can be applied to the core wire side.
手段4において、前記電線の絶縁被覆の上から一対のかしめ片をかしめることで前記電線を保持する保持手段を備えるようにしてもよい(手段5)。
このようにすれば、バレル部のみで電線を保持するよりも、確実に電線を保持することができる。
The means 4 may include a holding means for holding the electric wire by caulking a pair of caulking pieces from above the insulating coating of the electric wire (means 5).
If it does in this way, an electric wire can be certainly held rather than holding an electric wire only with a barrel part.
手段4又は手段5の端子金具の前記底板部に被覆電線の露出した芯線を載置して前記バレル部によって前記芯線を包み込むように圧着してなる端子金具付き電線としてもよい(手段6)。   It is good also as an electric wire with a terminal metal fitting which places the core wire which the covered electric wire exposed on the said baseplate part of the terminal metal fitting of the means 4 or the means 5, and crimps | bonds so that the said core wire may be wrapped by the said barrel part (means 6).
本構成によれば、端子金具の伸びを抑制しつつ電線保持力を確保することができる。   According to this configuration, it is possible to ensure the electric wire holding force while suppressing the elongation of the terminal fitting.
<実施形態1>
以下、本発明を具体化した実施形態1の端子金具付き電線10について、図1〜図6を参照して説明する。
実施形態1の端子金具付き電線10は、図1に示すように、被覆電線20の端末部に端子金具30が圧着接続されてなり、例えば電気自動車において走行用の動力源を構成するバッテリ、インバータ、モータなどの装置(図示せず)の間に配索されるものである。なお、図1の左方を前方とし、右方を後方として説明する。
<Embodiment 1>
Hereinafter, the electric wire 10 with a terminal metal fitting of Embodiment 1 which actualized this invention is demonstrated with reference to FIGS.
As shown in FIG. 1, the electric wire 10 with terminal metal fittings of the first embodiment has a terminal metal fitting 30 connected by crimping to the terminal portion of the covered electric wire 20. The device is routed between devices (not shown) such as a motor. Note that the left side of FIG. 1 is assumed to be the front and the right side is assumed to be the rear.
被覆電線20は、アルミニウム合金からなる複数本の金属素線21Aを螺旋状に撚り合わせてなる芯線21を樹脂製の絶縁被覆22(絶縁層)で被覆したものであり、その端末部においては、絶縁被覆22が剥き取られて芯線21が露出されている。なお、芯線21には、アルミニウム合金以外にも、アルミニウム線やこれら以外の他の種類の金属線を用いてもよい。   The covered electric wire 20 is obtained by covering a core wire 21 formed by spirally twisting a plurality of metal strands 21A made of an aluminum alloy with a resin insulating coating 22 (insulating layer). The insulation coating 22 is peeled off and the core wire 21 is exposed. In addition to the aluminum alloy, the core wire 21 may be an aluminum wire or other types of metal wires.
端子金具30は、いわゆるオープンバレル型であって、箱型の端子接続部31と、端子接続部31と連続し被覆電線20が接続される電線接続部40とからなり、アルミ製よりも高い強度が得られる銅合金製とされている。
端子接続部31は、箱型の雌端子であって、電線接続部40と一体に設けられ、電線20の軸方向(図1の左右方向)に沿って電線接続部40と並び、図示しない雄端子が挿入孔31Aに挿入されることにより、相手側端子と電気的接続が図られる。
The terminal fitting 30 is a so-called open barrel type, and includes a box-shaped terminal connection portion 31 and a wire connection portion 40 that is continuous with the terminal connection portion 31 and to which the covered electric wire 20 is connected. Is made of a copper alloy.
The terminal connection portion 31 is a box-shaped female terminal, is provided integrally with the wire connection portion 40, and is aligned with the wire connection portion 40 along the axial direction of the wire 20 (the left-right direction in FIG. 1). By inserting the terminal into the insertion hole 31A, electrical connection with the counterpart terminal is achieved.
電線接続部40は、被覆電線20を保持するインシュレーションバレル部41と、芯線21と接続される芯線接続部45と、を有する。
インシュレーションバレル部41(本発明の「保持手段」に相当)は、芯線接続部45から連続した底板の左右両側縁から一対のかしめ片41A,41Aが立ち上げられてなり、これらの一対のかしめ片41A,41Aを芯線21側に湾曲させることにより、被覆電線20が離脱や位置ずれしないように保持されている。
The electric wire connection portion 40 includes an insulation barrel portion 41 that holds the covered electric wire 20, and a core wire connection portion 45 that is connected to the core wire 21.
The insulation barrel portion 41 (corresponding to the “holding means” of the present invention) has a pair of caulking pieces 41A and 41A raised from the left and right side edges of the bottom plate continuous from the core wire connection portion 45. By curving the pieces 41A and 41A toward the core wire 21, the covered electric wire 20 is held so as not to be detached or displaced.
芯線接続部45は、図2に示すように、半円形状の底板部48と、底板部48の両側部から上方に延出されてなる一対のワイヤバレル部47,47(本発明の「バレル部」に相当)と、からなる。
ワイヤバレル部47,47は、共に長方形状であって、底板部48の両側部からそれぞれ幅方向に延出されている。
As shown in FIG. 2, the core wire connecting portion 45 includes a semicircular bottom plate portion 48 and a pair of wire barrel portions 47 and 47 extending upward from both side portions of the bottom plate portion 48 (the “barrel” of the present invention). Part)).
The wire barrel portions 47 and 47 are both rectangular and extend from both side portions of the bottom plate portion 48 in the width direction.
底板部48は、下側が凸となるU字状に湾曲した形状をなし、その上面には、圧着前には、上方向に突出する両持ち状の弾性変形部50が設けられている。なお、詳しくは後述するが、圧着後には、弾性変形部50の弾性変形により弾性変形部50の面と底板部48の面とがほぼ面一となる。   The bottom plate portion 48 has a U-shaped shape with a convex lower side, and a top-end is provided with a double-sided elastic deformation portion 50 that protrudes upward before pressure bonding. In addition, although mentioned later in detail, the surface of the elastic deformation part 50 and the surface of the baseplate part 48 become substantially flush with the elastic deformation of the elastic deformation part 50 after pressure bonding.
弾性変形部50は、底板部48の上面48Aのうち幅方向の中央部に突出形成されており、芯線21の軸方向(電線20の軸方向と同じ。図1の左右方向)に長く、その軸方向に沿った両端部が底板部48に連なる両持ち状に形成されている。弾性変形部50の軸方向における長さは、底板部48のうちワイヤバレル部47,47に対応する部分、即ち、底板部48のうち、ワイヤバレル部47,47のほぼ前端部47Aから後端部47Bに亘る位置に形成されている(図3参照)。   The elastically deforming portion 50 is formed so as to protrude from the central portion in the width direction of the upper surface 48A of the bottom plate portion 48, and is long in the axial direction of the core wire 21 (the same as the axial direction of the electric wire 20; Both end portions along the axial direction are formed in a cantilever shape that continues to the bottom plate portion 48. The length in the axial direction of the elastic deformation portion 50 is a portion corresponding to the wire barrel portions 47 and 47 in the bottom plate portion 48, that is, a portion of the bottom plate portion 48 from the substantially front end portion 47 </ b> A of the wire barrel portions 47 and 47 to the rear end. It is formed at a position over the portion 47B (see FIG. 3).
弾性変形部50の形状は、その前後方向の端部(芯線21の軸方向に沿った両端部)が平坦(軸方向に平坦)な底板部48と連なり、弾性変形部50の両端部から弾性変形部50の中央部方向に向かうに従ってその高さが高くなる両持ち状の形状(架橋状の形状)をなす。この弾性変形部50の断面は、長方形状であって、上下方向の厚みは、底板部48の厚みとほぼ同じであるが、弾性変形部50の両端部については、後述する弾性変形部50の形成の際に引き伸ばされているため、やや厚みが薄くなっている。なお、加工方法によっては弾性変形部の全体の厚みを薄くして弾性変形部の全体に弾性力を持たせることができる。この弾性変形部50は、圧力を受けて底板部48と同じ形状となるまで弾性変形しても芯線21が配される側に弾性反発力を発揮するものである。   The shape of the elastic deformation portion 50 is such that the end portions in the front-rear direction (both end portions along the axial direction of the core wire 21) are connected to the bottom plate portion 48 that is flat (flat in the axial direction). A double-supported shape (cross-linked shape) whose height increases in the direction toward the center of the deformable portion 50 is formed. The cross section of the elastic deformation portion 50 is rectangular, and the thickness in the vertical direction is substantially the same as the thickness of the bottom plate portion 48. However, both ends of the elastic deformation portion 50 are the same as those of the elastic deformation portion 50 described later. Since it is stretched during formation, the thickness is slightly reduced. Note that, depending on the processing method, the entire elastic deformation portion can be thinned to give the entire elastic deformation portion an elastic force. The elastic deformation portion 50 exhibits an elastic repulsion force on the side where the core wire 21 is disposed even if it is elastically deformed until it receives pressure and has the same shape as the bottom plate portion 48.
この弾性変形部50の成形方法は、例えば、所定の厚みの金属平板に打ち抜き加工を施した端子金具原板(端子金具の展開形状)に、図示しない切断機により、幅方向の中央部であって、軸方向に沿うように平行な2本の切れ目部52,52を切り込む(図4参照)。なお、図4は、電線接続部40の部分における金属板材の打ち抜き加工後の展開形状(端子金具原板)に切れ目部52,52を形成したものである。   The elastically deformable portion 50 is formed by, for example, forming a terminal metal plate (a developed shape of the terminal metal) into a central portion in the width direction by punching a metal flat plate having a predetermined thickness by a cutting machine (not shown). Then, two parallel cut portions 52, 52 are cut along the axial direction (see FIG. 4). In FIG. 4, the cut portions 52 and 52 are formed in the developed shape (terminal metal plate) after the metal plate material is punched in the wire connection portion 40.
次に、2本の切れ目部52,52の間を、プレス機により底板部48の芯線21が載置される側とは反対側(図4の紙面裏側)から押圧変形させ、弾性変形部50を底板部48の芯線21が載置される側(図4の紙面表側)に両持ち状に突出させる。なお、弾性変形部50を芯線21が載置される側に変形させることにより、底板部48の上下を連通する開口部61が残される(図3参照)。
これにより、成形された弾性変形部50は、芯線21の圧着の際に圧力を受けると下方に弾性変形し、芯線21の圧着後においても芯線21に弾発力を及ぼす。なお、圧着後には、芯線21に押された弾性変形部50の変形により開口部61がほぼ閉じることになる。
Next, between the two cut portions 52, 52 is pressed and deformed from the side opposite to the side on which the core wire 21 of the bottom plate portion 48 is placed (the back side of the paper in FIG. 4) by the press machine, and the elastic deformation portion 50 Is protruded in a cantilevered manner on the side of the bottom plate portion 48 on which the core wire 21 is placed (the front side in FIG. 4). In addition, by deforming the elastic deformation portion 50 to the side on which the core wire 21 is placed, an opening 61 that communicates with the top and bottom of the bottom plate portion 48 is left (see FIG. 3).
As a result, the molded elastic deformation portion 50 is elastically deformed downward when pressure is applied when the core wire 21 is crimped, and exerts an elastic force on the core wire 21 even after the core wire 21 is crimped. Note that, after the crimping, the opening 61 is almost closed due to the deformation of the elastic deformation portion 50 pushed by the core wire 21.
次に、端子金具付き電線10の製造方法について説明する。
被覆電線20の露出した芯線21を、端子原板に曲げ加工を施した端子金具30の底板部48に載置する。そして、図5に示すように、端子金具30をアンビル70上に位置決めする。
そして、端子金具30の上方に配されたクリンパ71を下降させる。
すると、端子金具30のワイヤバレル部47,47が、クリンパ71の内面形状に応じて芯線21を包み込むような形状に変形していくとともに、芯線21を押し潰すように下方に押圧する。
Next, the manufacturing method of the electric wire 10 with a terminal metal fitting is demonstrated.
The exposed core wire 21 of the covered electric wire 20 is placed on the bottom plate portion 48 of the terminal fitting 30 obtained by bending the terminal original plate. Then, the terminal fitting 30 is positioned on the anvil 70 as shown in FIG.
Then, the crimper 71 disposed above the terminal fitting 30 is lowered.
Then, the wire barrel portions 47, 47 of the terminal fitting 30 are deformed into a shape that wraps the core wire 21 according to the inner surface shape of the crimper 71, and are pressed downward so as to crush the core wire 21.
これにより、底板部48及び弾性変形部50は、芯線21の下に位置しているため、芯線21と共に下方に(押し潰される方向に)押圧される。これにより、図6に示すように、弾性変形部50が下方に弾性変形する。
このとき、芯線21は、上方からは、ワイヤバレル部47,47のかしめにより圧縮されて押圧された力を受ける一方、下方からは、弾性変形部50の弾性力により付勢された状態となっている。
そして、クリンパ71が所定の位置まで下降すると、端子金具付き電線10の圧着が終了する。
Thereby, since the bottom plate part 48 and the elastic deformation part 50 are located under the core wire 21, they are pressed downward (in a direction to be crushed) together with the core wire 21. Thereby, as shown in FIG. 6, the elastic deformation part 50 elastically deforms below.
At this time, the core wire 21 receives a force compressed and pressed by caulking of the wire barrel portions 47 and 47 from above, and is biased by the elastic force of the elastic deformation portion 50 from below. ing.
Then, when the crimper 71 is lowered to a predetermined position, the crimping of the electric wire 10 with terminal fitting is finished.
このように実施形態1では、ワイヤバレル部47,47(バレル部)が芯線21を底板部48側に押圧する力だけでなく、弾性変形部50によりワイヤバレル部47,47側に芯線21を押し戻そうとする力が与えられる。それら互いに反対方向から芯線21を押し付ける力が与えられることにより、より強く芯線21をワイヤバレル部47,47と底板部48との間に保持する力を得ることができる。
すなわち、圧着の際にワイヤバレル部47,47が芯線21を押圧する力を若干弱くしても、弾性変形部50により電線保持力を確保することができるから、強い力で圧着することによる端子金具の伸びを抑制することができる。
また、弾性変形部50は、両持ち状であるから、片持ち状と比較して、弾性変形部50の両端部が底板部48に支持されることになり、弾性変形部50からの負荷を2箇所に分散させることができるという効果に加えて、2個所で生じる弾性力を芯線21側に作用させることができるから、より強い力で芯線21を保持することができる。
As described above, in the first embodiment, not only the force that the wire barrel portions 47 and 47 (barrel portions) press the core wire 21 toward the bottom plate portion 48 side, but also the core wire 21 is placed on the wire barrel portions 47 and 47 side by the elastic deformation portion 50. The force to push back is given. By applying a force for pressing the core wire 21 from the opposite directions, a force for holding the core wire 21 between the wire barrel portions 47 and 47 and the bottom plate portion 48 more strongly can be obtained.
That is, even if the force with which the wire barrel portions 47 and 47 press the core wire 21 is slightly weakened during crimping, the elastic deformation portion 50 can secure the electric wire holding force. The elongation of the metal fitting can be suppressed.
Further, since the elastically deforming portion 50 is in a cantilever shape, both ends of the elastically deforming portion 50 are supported by the bottom plate portion 48 as compared with the cantilever shape, and the load from the elastically deforming portion 50 is reduced. In addition to the effect that it can be dispersed at two locations, the elastic force generated at two locations can be applied to the core wire 21 side, so that the core wire 21 can be held with a stronger force.
また、インシュレーションバレル部41(保持手段)により電線20の絶縁被覆の上から一対のかしめ片41A,41Aをかしめることで電線20を保持するから、ワイヤバレル部47,47のみで電線20を保持するよりも、確実に電線20を保持することができる。   Further, since the electric wire 20 is held by caulking the pair of caulking pieces 41A and 41A from above the insulating coating of the electric wire 20 by the insulation barrel portion 41 (holding means), the electric wire 20 is held only by the wire barrel portions 47 and 47. The electric wire 20 can be reliably held rather than held.
<実施形態2>
次に、本発明の実施形態2を図7〜図9参照して説明する。なお、実施形態1と同一の構成については、同一の符号を付して説明を省略する。
実施形態1の弾性変形部50は、芯線21の軸方向に延びていたが、実施形態2の弾性変形部150は、芯線21の軸方向とは直交する方向に延びているものである。
<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, about the structure same as Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.
The elastic deformation portion 50 of the first embodiment extends in the axial direction of the core wire 21, but the elastic deformation portion 150 of the second embodiment extends in a direction orthogonal to the axial direction of the core wire 21.
底板部48は、下側が凸となる湾曲した形状をなし、その上面には、上方向に突出した両持ち状の弾性変形部150が、形成されている(図9参照)。   The bottom plate portion 48 has a curved shape with a convex lower side, and a top-end is provided with a double-sided elastic deformation portion 150 protruding upward (see FIG. 9).
弾性変形部150は、底板部48の上面のうち軸方向においてバレル部47,47の前端と後端のほぼ中央部に形成されており、芯線21の幅方向(軸方向と直交する方向と同じ)に長く、その幅方向の両端部が底板部48に連なる両持ち状に形成されている。弾性変形部150の長さは、一方のバレル部47の基端部から他方のバレル部47の基端部まで、即ち、底板部48の全幅に亘って形成されている。   The elastically deforming portion 150 is formed at the substantially central portion of the front end and the rear end of the barrel portions 47, 47 in the axial direction on the upper surface of the bottom plate portion 48, and is the same as the width direction of the core wire 21 (the direction orthogonal to the axial direction). ) And both end portions in the width direction are formed in a cantilever shape that is continuous with the bottom plate portion 48. The length of the elastic deformation portion 150 is formed from the base end portion of one barrel portion 47 to the base end portion of the other barrel portion 47, that is, over the entire width of the bottom plate portion 48.
弾性変形部150の形状は、その幅方向の端部(芯線21の軸方向と直交する方向の両端部)が底板部48と連なり(底板部48の面とほぼ面一になり)、その両端部から中心方向に向かうに従ってその高さ方向の位置が高くなる両持ち状の形状(架橋された形状)をなす。また、弾性変形部150の断面は、長方形状であって、上下方向の厚みは、底板部48の厚みとほぼ同じであるが、弾性変形部150の両端部については、後述する弾性変形部150の形成の際に引き伸ばされているため、やや厚みが薄くなっている。   The shape of the elastic deformation portion 150 is such that the end portions in the width direction (both end portions in the direction orthogonal to the axial direction of the core wire 21) are continuous with the bottom plate portion 48 (almost flush with the surface of the bottom plate portion 48). It forms a doubly-supported shape (cross-linked shape) in which the position in the height direction increases from the portion toward the center. The cross section of the elastic deformation portion 150 is rectangular, and the thickness in the vertical direction is substantially the same as the thickness of the bottom plate portion 48. However, both ends of the elastic deformation portion 150 are described later. Since the film is stretched during the formation, the thickness is slightly reduced.
この弾性変形部150の成形方法は、例えば、図8に示すように、所定の厚みの金属平板に打ち抜き加工を施した端子金具原板(端子金具の展開形状)に、切断機により、バレル部47,47の前端47Aと後端47Bとの略中央部であって、芯線21の幅方向に(軸方向と直交する方向に)平行な2本の切れ目部152,152を入れる。なお、図8は、電線接続部40の部分における金属板材の打ち抜き加工後の展開形状(端子金具原板)に切れ目部152,152を形成したものである。
次に、2本の切れ目部152,152の間を、プレス機により底板部48の芯線21が載置される側とは反対側(図8の紙面裏側)から押圧変形させ、弾性変形部150を底板部48の芯線21が載置される側(図8の紙面表側)に両持ち状に突出させる。
For example, as shown in FIG. 8, the elastically deforming portion 150 is molded into a terminal metal plate (a developed shape of the terminal metal) obtained by punching a metal flat plate having a predetermined thickness by using a cutting machine. , 47, two cut portions 152, 152 parallel to the width direction of the core wire 21 (in the direction perpendicular to the axial direction) are formed at a substantially central portion between the front end 47A and the rear end 47B. In FIG. 8, the cut portions 152 and 152 are formed in the developed shape (terminal metal plate) after the punching process of the metal plate material in the wire connection portion 40.
Next, between the two cut portions 152, 152 is pressed and deformed from the side opposite to the side on which the core wire 21 of the bottom plate portion 48 is placed (the back side of the paper in FIG. 8) by a press machine, and the elastic deformation portion 150. Is protruded in a cantilevered manner on the side of the bottom plate portion 48 on which the core wire 21 is placed (the front side of the drawing in FIG. 8).
したがって、弾性変形部150はこの押圧変形された際に若干伸ばされている。なお、弾性変形部150を芯線21が載置される側に変形させることにより、底板部48の上下を連通する開口部161が残される(図9)。
これにより、成形された弾性変形部150は、芯線21の圧着の際に圧力を受けると、図9の下方に弾性変形し、芯線21の圧着後において芯線21に弾発力を及ぼす。なお、圧着後には、芯線21に押された弾性変形部150の変形により開口部161がほぼ閉じることになる。
Therefore, the elastically deforming portion 150 is slightly stretched when being pressed and deformed. In addition, by deforming the elastic deformation portion 150 to the side on which the core wire 21 is placed, an opening portion 161 that communicates with the top and bottom of the bottom plate portion 48 remains (FIG. 9).
As a result, when the molded elastic deformation portion 150 receives pressure during the crimping of the core wire 21, it is elastically deformed downward in FIG. 9 and exerts an elastic force on the core wire 21 after the core wire 21 is crimped. In addition, after crimping | compression-bonding, the opening part 161 will be substantially closed by the deformation | transformation of the elastic deformation part 150 pushed by the core wire 21. FIG.
次に、端子金具付き電線110の製造方法について説明する。
被覆電線20の露出した芯線21を、端子原板に曲げ加工を施した端子金具130の底板部48に載置する。そして、図5に示すように、端子金具130をアンビル70上に位置決めする。
そして、端子金具30の上方に配されたクリンパ71を下降させる。
すると、端子金具30のワイヤバレル部47,47が、クリンパ71の内面形状に応じて芯線21を包み込むような形状に変形していくとともに、芯線21を押し潰すように下方に押圧する。
Next, the manufacturing method of the electric wire 110 with a terminal metal fitting is demonstrated.
The exposed core wire 21 of the covered electric wire 20 is placed on the bottom plate portion 48 of the terminal fitting 130 obtained by bending the terminal original plate. Then, as shown in FIG. 5, the terminal fitting 130 is positioned on the anvil 70.
Then, the crimper 71 disposed above the terminal fitting 30 is lowered.
Then, the wire barrel portions 47, 47 of the terminal fitting 30 are deformed into a shape that wraps the core wire 21 according to the inner surface shape of the crimper 71, and are pressed downward so as to crush the core wire 21.
これにより、底板部48及び底板部48から突出する弾性変形部150は、芯線21の下に位置しているため、芯線21と共に下方に(押し潰される方向に)押圧される。これにより、図9に示すように、弾性変形部150が弾性変形する(図9では、底板部48と同様に下方に凸となる湾曲に変形する)。   Thereby, since the elastic deformation part 150 which protrudes from the baseplate part 48 and the baseplate part 48 is located under the core wire 21, it is pressed below with the core wire 21 (in the direction crushed). As a result, the elastic deformation portion 150 is elastically deformed as shown in FIG. 9 (in FIG. 9, the elastic deformation portion 150 is deformed into a downward convex curve similar to the bottom plate portion 48).
このとき、芯線21は、上方からは、ワイヤバレル部47,47のかしめにより圧縮されて押圧された力を受ける一方、下方からは、弾性変形部150により付勢された状態となっている。
そして、クリンパ71が所定の位置まで下降すると、端子金具付き電線110の圧着が終了する。
At this time, the core wire 21 receives a force compressed and pressed by caulking of the wire barrel portions 47 and 47 from above, and is biased by the elastic deformation portion 150 from below.
Then, when the crimper 71 is lowered to a predetermined position, the crimping of the electric wire 110 with terminal fitting is finished.
このように実施形態2では、実施形態1と同様に、ワイヤバレル部47,47(バレル部)が芯線21を底板部48側に押圧する力だけでなく、弾性変形部150によりワイヤバレル部47,47側に芯線21を押し戻そうとする力が与えられる。それら互いに反対方向から芯線21を押し付ける力が与えられることにより、より強く芯線21をワイヤバレル部47,47と底板部48との間に保持する力を得ることができる。
すなわち、圧着の際にワイヤバレル部47,47が芯線21を押圧する力を若干弱くしても、弾性変形部150により電線保持力を確保することができるから、強い力で圧着することによる端子金具の伸びを抑制することができる。
また、弾性変形部150は、両持ち状であるから、片持ち状と比較して、弾性変形部150の両端部が底板部48に支持されることになり、弾性変形部150からの負荷を2箇所に分散させることができるという効果に加えて、2個所で生じる弾性力を芯線21側に作用させることができるから、より強い力で芯線21を保持することができる。
As described above, in the second embodiment, as in the first embodiment, the wire barrel portions 47 and 47 (barrel portions) not only have a force of pressing the core wire 21 toward the bottom plate portion 48 but also the elastic barrel 150 due to the elastic deformation portion 150. , 47 side, a force to push back the core wire 21 is applied. By applying a force for pressing the core wire 21 from the opposite directions, a force for holding the core wire 21 between the wire barrel portions 47 and 47 and the bottom plate portion 48 more strongly can be obtained.
That is, even if the force with which the wire barrel portions 47 and 47 press the core wire 21 is slightly weakened during crimping, the elastic deforming portion 150 can secure the electric wire holding force. The elongation of the metal fitting can be suppressed.
Further, since the elastically deforming portion 150 is in a cantilever shape, both ends of the elastically deforming portion 150 are supported by the bottom plate portion 48 as compared with the cantilever shape, and the load from the elastically deforming portion 150 is reduced. In addition to the effect that it can be dispersed at two locations, the elastic force generated at two locations can be applied to the core wire 21 side, so that the core wire 21 can be held with a stronger force.
<他の実施形態>
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
(1)上記実施形態では、弾性変形部50,150は、軸方向又は軸方向と直交する方向に延びる構成としたが、これに限られず、例えば、軸方向に対して斜め方向に延びる弾性変形部を形成してもよい。
<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above-described embodiment, the elastic deformation portions 50 and 150 are configured to extend in the axial direction or a direction orthogonal to the axial direction. However, the present invention is not limited thereto, and for example, elastic deformation extending in an oblique direction with respect to the axial direction. A part may be formed.
(2)上記実施形態では、1箇所に弾性変形部を形成したが、複数箇所に弾性変形部を形成するようにしてもよい。   (2) In the above embodiment, the elastic deformation portion is formed at one place, but the elastic deformation portion may be formed at a plurality of places.
実施形態1の端子金具付き電線の側面図Side view of the electric wire with terminal fittings of Embodiment 1 端子金具の斜視図Perspective view of terminal fitting 端子金具の側断面図Side cross-sectional view of terminal fitting 端子金具の展開形状を表した図Diagram showing the unfolded shape of the terminal fitting 圧着の際のクリンパとアンビルを示す図Diagram showing crimper and anvil during crimping 圧着の際に弾性変形部が変形する様子を表す図The figure showing a state where an elastic deformation part deforms in the case of pressure bonding 実施形態2の端子金具付き電線の側面図Side view of the electric wire with terminal fittings of Embodiment 2 端子金具の展開形状を表した図Diagram showing the unfolded shape of the terminal fitting 芯線が底板部に載置された状態を示す断面図Sectional drawing which shows the state in which the core wire was mounted in the baseplate part
符号の説明Explanation of symbols
10,110…端子金具付き電線
20…被覆電線
21…芯線
30…端子金具
31…端子接続部
40…電線接続部
41…インシュレーションバレル部
47…ワイヤバレル部(バレル部)
48…底板部
50,150…弾性変形部
DESCRIPTION OF SYMBOLS 10,110 ... Electric wire with a terminal metal fitting 20 ... Covered electric wire 21 ... Core wire 30 ... Terminal metal fitting 31 ... Terminal connection part 40 ... Electric wire connection part 41 ... Insulation barrel part 47 ... Wire barrel part (barrel part)
48 ... bottom plate part 50,150 ... elastic deformation part

Claims (6)

  1. 電線の接続される電線接続部と、前記電線接続部と一体に設けられ、前記電線の軸方向に沿って前記電線接続部と並び、相手側端子部と接続される端子接続部と、を備え、
    前記電線接続部は、前記電線の芯線が載置される底板部と、この底板部の両側部から延出されたバレル部と、を有し、
    前記底板部のうち前記芯線と接する面には、前記芯線の圧着の際に圧力を受けて変形し、前記芯線の圧着後において前記芯線に弾発力を及ぼす弾性変形部が、前記芯線の軸方向に沿った両端部が前記底板部に連なる両持ち状に形成されていることを特徴とする端子金具。
    A wire connecting portion to which an electric wire is connected; and a terminal connecting portion that is provided integrally with the wire connecting portion, is aligned with the wire connecting portion along the axial direction of the wire, and is connected to the mating terminal portion. ,
    The electric wire connecting portion has a bottom plate portion on which the core wire of the electric wire is placed, and barrel portions extended from both side portions of the bottom plate portion,
    The surface of the bottom plate that is in contact with the core wire is deformed by pressure when the core wire is crimped, and an elastic deformation portion that exerts an elastic force on the core wire after the core wire is crimped is an axis of the core wire. A terminal fitting characterized in that both end portions along the direction are formed in a doubly-supported manner connected to the bottom plate portion.
  2. 前記電線の絶縁被覆の上から一対のかしめ片をかしめることで前記電線を保持する保持手段を備えることを特徴とする請求項1に記載の端子金具付き電線。 The electric wire with terminal fitting according to claim 1, further comprising holding means for holding the electric wire by caulking a pair of caulking pieces from above the insulating coating of the electric wire.
  3. 請求項1又は請求項2に記載の端子金具の前記底板部に被覆電線の露出した芯線を載置して前記バレル部によって前記芯線を包み込むように圧着してなる端子金具付き電線。 The electric wire with a terminal metal fitting formed by placing the core wire with the covered electric wire exposed on the bottom plate portion of the terminal metal fitting according to claim 1 or 2, and pressing the core wire so as to wrap the core wire by the barrel portion.
  4. 電線の接続される電線接続部と、前記電線接続部と一体に設けられ、前記電線の軸方向に沿って前記電線接続部と並び、相手側端子部と接続される端子接続部と、を備え、
    前記電線接続部は、前記電線の芯線が載置される底板部と、この底板部の両側部から延出されたバレル部と、を有し、
    前記底板部のうち前記芯線と接する面には、前記芯線の圧着の際に圧力を受けて変形し、前記芯線の圧着後において前記芯線に弾発力を及ぼす弾性変形部が、前記芯線の軸方向と直交する方向における両端部が前記底板部に連なる両持ち状に形成されていることを特徴とする端子金具。
    A wire connecting portion to which an electric wire is connected; and a terminal connecting portion that is provided integrally with the wire connecting portion, is aligned with the wire connecting portion along the axial direction of the wire, and is connected to the mating terminal portion. ,
    The electric wire connecting portion has a bottom plate portion on which the core wire of the electric wire is placed, and barrel portions extended from both side portions of the bottom plate portion,
    The surface of the bottom plate that is in contact with the core wire is deformed by pressure when the core wire is crimped, and an elastic deformation portion that exerts an elastic force on the core wire after the core wire is crimped is an axis of the core wire. A terminal fitting characterized in that both end portions in a direction orthogonal to the direction are formed in a cantilevered manner continuous to the bottom plate portion.
  5. 前記電線の絶縁被覆の上から一対のかしめ片をかしめることで前記電線を保持する保持手段を備えることを特徴とする請求項4に記載の端子金具付き電線。 The electric wire with a terminal fitting according to claim 4, further comprising holding means for holding the electric wire by caulking a pair of caulking pieces from above the insulating coating of the electric wire.
  6. 請求項4又は請求項5に記載の端子金具の前記底板部に被覆電線の露出した芯線を載置して前記バレル部によって前記芯線を包み込むように圧着してなる端子金具付き電線。 The electric wire with a terminal metal fitting formed by mounting the core wire with which the covered electric wire is exposed on the bottom plate portion of the terminal metal fitting according to claim 4 or 5, and crimping the core wire so as to wrap the core wire.
JP2008245884A 2008-09-25 2008-09-25 Terminal fitting and electric wire with terminal fitting Pending JP2010080189A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008245884A JP2010080189A (en) 2008-09-25 2008-09-25 Terminal fitting and electric wire with terminal fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008245884A JP2010080189A (en) 2008-09-25 2008-09-25 Terminal fitting and electric wire with terminal fitting

Publications (1)

Publication Number Publication Date
JP2010080189A true JP2010080189A (en) 2010-04-08

Family

ID=42210395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008245884A Pending JP2010080189A (en) 2008-09-25 2008-09-25 Terminal fitting and electric wire with terminal fitting

Country Status (1)

Country Link
JP (1) JP2010080189A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011052549A1 (en) * 2009-10-28 2011-05-05 矢崎総業株式会社 Crimp terminal
GB2503093A (en) * 2012-05-15 2013-12-18 Sumitomo Wiring Systems Crimp terminal with wire positioning protrusion
CN105281084A (en) * 2014-07-23 2016-01-27 罗伯特·博世有限公司 Crimp contact member

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011052549A1 (en) * 2009-10-28 2011-05-05 矢崎総業株式会社 Crimp terminal
US8905799B2 (en) 2009-10-28 2014-12-09 Yazaki Corporation Press bond terminal
GB2503093A (en) * 2012-05-15 2013-12-18 Sumitomo Wiring Systems Crimp terminal with wire positioning protrusion
GB2503093B (en) * 2012-05-15 2016-08-31 Sumitomo Wiring Systems Crimp terminal
CN105281084A (en) * 2014-07-23 2016-01-27 罗伯特·博世有限公司 Crimp contact member
DE102014214384A1 (en) * 2014-07-23 2016-01-28 Robert Bosch Gmbh Crimpkontaktelement

Similar Documents

Publication Publication Date Title
JP5557378B2 (en) Crimping terminal and crimping structure for crimping terminal wire
JP5107693B2 (en) Crimping structure and crimping method
JP5024948B2 (en) Crimp structure of aluminum wire and terminal
US20150364835A1 (en) Method of manufacturing connection structural body, connection structural body, wire harness, crimping member and crimping device
JP5184222B2 (en) Manufacturing method of terminal crimping die and electric wire with terminal fitting
JP2006294475A (en) Connector
WO2014148480A1 (en) Crimp terminal and crimping structure for wire in crimp terminal
WO2010024033A1 (en) Terminal metal fitting and method of manufacturing terminal metal fitting
JP2010097781A (en) Manufacturing method of electric wire with terminal fitting, and terminal crimping device
JP2010080189A (en) Terminal fitting and electric wire with terminal fitting
JP2009123622A (en) Crimping terminal for aluminum wire
JP2009123621A (en) Crimping terminal for aluminum wire
JP2007059304A (en) Wire with terminal and its manufacturing method
WO2010024032A1 (en) Terminal metal fitting, method of manufacturing cable with terminal metal fitting, and terminal-crimping mold
JP2010049985A (en) Terminal metal fitting, and electric wire with terminal metal fitting
JP2010067478A (en) Terminal fitting, and electric wire with terminal fitting
JP5150378B2 (en) Electric wires with terminal fittings and terminal fittings
JP5146759B2 (en) Terminal fitting, electric wire with terminal fitting, and manufacturing method of electric wire with terminal fitting
JP5127045B2 (en) Crimp structure of wire and terminal
JP5376639B2 (en) Crimp terminal structure and harness
JP2016146250A (en) Manufacturing method of terminal fitting with wire, crimping jig, and terminal fitting with wire
JP2010118238A (en) Connection structure of terminal metal fitting to electric wire
JP2010073348A (en) Terminal metal fitting, and electric wire with terminal metal fitting
JP5195191B2 (en) Terminal fittings and electric wires with terminal fittings
JP2007115429A (en) Pressure contact terminal