JP5361622B2

JP5361622B2 - Terminal manufacturing method, electric motor

Info

Publication number: JP5361622B2
Application number: JP2009207569A
Authority: JP
Inventors: 太田　　実; 正幸稲田; 忠道佐々木
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2009-09-08
Filing date: 2009-09-08
Publication date: 2013-12-04
Anticipated expiration: 2029-09-08
Also published as: JP2011060524A

Abstract

<P>PROBLEM TO BE SOLVED: To make it possible to easily perform processing of a terminal to a desired shape in a swaging step, and to ensure sufficient joint strength and conduction performance of the terminal. <P>SOLUTION: A method for manufacturing a terminal 1 formed, by electrically adjoining a terminal fixture 10 to a conductive wire bundle 2 having a plurality of bound conductive wires L having insulating coatings includes a swaging step of pinching the terminal fixture 10, fitted to the conductive wire bundle 2 with electrode members 20 (20-1, 20-2) and pressing the fixture 10 and a conducting step for transmitting electricity to the terminal fixture via the electrode members 20 so as to carbonize the insulating coatings of the conductive wires L and conductively adjoin the terminal fixture 10 with the conductive wire bundle 2. The electrode members 20 have a pair of electrode surfaces 31a, 31d sandwiching the terminal fixture 10 vertically, and the other pairs of electrode surfaces 31b and 31c, and 31e and 31f sandwiching the same in a lateral direction. The swaging step is such that the terminal fixture 10 is pinched with the electrode members 20, vertically and laterally at the same time for swaging. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、絶縁被覆を有する導線束に装着した端子具を電極部材でかしめて通電することで、絶縁被覆を炭化させて端子具と導線とを導電接合してなる端子の製造方法、及び該方法で製造した端子を備える電動機に関する。 The present invention relates to a method of manufacturing a terminal formed by carbonizing an insulating coating and conducting a conductive connection between the terminal tool and a conductive wire by caulking the terminal tool attached to a wire bundle having an insulating coating with an electrode member to energize, and the method. The present invention relates to an electric motor including a terminal manufactured by the method.

従来、例えば特許文献１に示すように、絶縁被覆を有する導線に端子具を導電接合してなる端子の製造において、ヒュージング（抵抗溶接）処理が行われている。図７（ａ）は、ヒュージング処理で接合される端子（ターミナル）１を示す図であり、同図（ｂ）は、ヒュージング処理を行うための電極部材１００の構成例を示す図である。ヒュージング処理では、図７（ａ）に示すように、絶縁被覆を有する導線Ｌを束ねた導線束２の外周に金属製の端子具１０を装着し、図７（ｂ）に示すように、端子具１０を一対の電極部材１００−１，１００−２で両側から挟持してかしめる。その状態で、電極部材１００−１，１００−２間に電流を流すことで、端子具１０の発熱によって絶縁被覆を炭化（溶融）させ、これにより端子具１０と導線Ｌとを導通状態で接合してなる端子１を形成する。 Conventionally, as shown in, for example, Patent Document 1, a fusing (resistance welding) process is performed in manufacturing a terminal obtained by conductively joining a terminal tool to a conductive wire having an insulating coating. FIG. 7A is a diagram showing a terminal 1 joined by the fusing process, and FIG. 7B is a diagram showing a configuration example of the electrode member 100 for performing the fusing process. . In the fusing process, as shown in FIG. 7A, a metal terminal 10 is attached to the outer periphery of the conductor bundle 2 in which the conductor L having an insulation coating is bundled, and as shown in FIG. The terminal tool 10 is clamped from both sides with a pair of electrode members 100-1 and 100-2. In that state, by passing an electric current between the electrode members 100-1 and 100-2, the insulation coating is carbonized (melted) by the heat generated by the terminal tool 10, thereby joining the terminal tool 10 and the conductor L in a conductive state. Thus formed terminal 1 is formed.

ところで、従来のヒュージング処理用の電極部材１００は、左右一対の電極部材１００−１，１００−２を備えている。この一対の電極部材１００−１，１００−２で導線束２の外周に装着した端子具１０を両側から挟持して押圧することで、端子１をかしめるようになっている。これにより、端子具１０の断面がかしめ方向に潰されたいわゆる平型の端子が形成される。 Incidentally, a conventional fusing treatment electrode member 100 includes a pair of left and right electrode members 100-1 and 100-2. The terminal 1 is crimped by sandwiching and pressing the terminal tool 10 mounted on the outer periphery of the conductor bundle 2 from both sides with the pair of electrode members 100-1 and 100-2. As a result, a so-called flat terminal in which the cross section of the terminal tool 10 is crushed in the caulking direction is formed.

しかしながら、上記のように、端子具１０を一方向から挟持してかしめる方法では、端子具１０が挟持されていない方向に押し広げられる。そうすると、端子具１０の押し広げられた方向に塑性変形以上の力がかかり、端子具１０の接合面に亀裂が生じるおそれがあった。端子具１０に亀裂が生じると、その部分から導線Ｌが飛び出したりすることで、端子１を適正な形状に加工できないという問題があった。また、端子具１０が押し広げられることで、端子具１０内の導線Ｌを十分に密着させることができず、端子１の導電性及び耐久性を確保できないおそれがあった。また、一対の電極部材１００−１，１００−２間にしか電流を流すことができないので、端子１に流れる電流の向きが限られてしまい、絶縁被覆の炭化（溶融）の均一化に制限があった。 However, as described above, in the method in which the terminal tool 10 is clamped from one direction, the terminal tool 10 is pushed and spread in a direction in which the terminal tool 10 is not clamped. If it does so, there was a possibility that the force beyond plastic deformation might be applied in the direction where terminal tool 10 was spread, and a crack might arise in the joint surface of terminal tool 10. If the terminal tool 10 is cracked, there is a problem that the terminal 1 cannot be processed into an appropriate shape because the lead wire L protrudes from the portion. In addition, since the terminal tool 10 is spread out, the conductive wire L in the terminal tool 10 cannot be sufficiently adhered, and the conductivity and durability of the terminal 1 may not be ensured. In addition, since current can only flow between the pair of electrode members 100-1 and 100-2, the direction of current flowing through the terminal 1 is limited, and there is a limit to uniformizing carbonization (melting) of the insulating coating. there were.

また、従来の電極部材１００では、図７（ｂ）に示すように、端子１を挟持するための電極面１００ｃを有する電極部１００ａと、その根元側のシャンク部１００ｂとが一体に形成されていた。そのため、電極面１００ｃの形状を変更しようとすると、電極部材１００の全体の設計変更が必要であった。すなわち、電極面１００ｃの形状変更が簡単に行えず、かしめによる端子具１０の加工形状を平型以外に変更することは困難であった。そのため、導線束２の太さや導線Ｌの本数、あるいは端子具１０の形状の変更などに追従できず、端子具１０内の導線Ｌを十分に密着させることができないおそれがあった。また、電極部１００ａがシャンク部１００ｂと一体に形成されていると、電極面１００ｃの交換や再研磨などのメンテナンスを簡単に行うことができないという問題があった。 Moreover, in the conventional electrode member 100, as shown in FIG.7 (b), the electrode part 100a which has the electrode surface 100c for pinching the terminal 1, and the shank part 100b of the base side are integrally formed. It was. Therefore, when the shape of the electrode surface 100c is to be changed, the entire design of the electrode member 100 needs to be changed. That is, it is difficult to change the shape of the electrode surface 100c, and it is difficult to change the processed shape of the terminal tool 10 by caulking to a shape other than the flat shape. For this reason, it is impossible to follow the change in the thickness of the wire bundle 2, the number of the conductors L, or the shape of the terminal device 10, and the conductor L in the terminal device 10 may not be sufficiently adhered. Further, when the electrode part 100a is formed integrally with the shank part 100b, there is a problem that maintenance such as replacement or re-polishing of the electrode surface 100c cannot be easily performed.

特開２００３−１５３５０５号公報JP 2003-153505 A

本発明は上述の点に鑑みてなされたものであり、その目的は、端子をかしめる際に所望の形状に加工することが簡単に行えて、端子の十分な接合強度及び導電性能を確保でき、かつ、電極部材のメンテナンスを簡単に行うことができる端子の製造方法、及び該方法で製造された端子を備える電動機を提供することにある。 The present invention has been made in view of the above points, and its purpose is to easily process the terminal into a desired shape when crimping the terminal, and to ensure sufficient bonding strength and conductive performance of the terminal. And it is providing the manufacturing method of the terminal which can perform maintenance of an electrode member easily, and an electric motor provided with the terminal manufactured by this method.

上記課題を解決するための本発明は、絶縁被覆を有する導線（Ｌ）を複数本束ねた導線束（２）に端子具（１０）を導電接合してなる端子（１）の製造方法であって、導線束（２）の外周に装着した端子具（１０）を電極部材（２０−１，２０−２）で挟持して押圧するかしめ工程と、電極部材（２０−１，２０−２）を介して端子具（１０）に通電することで、導線（Ｌ）の絶縁被覆を炭化あるいは溶融させて端子具（１０）と導線束（２）とを導電接合する通電工程と、を有し、電極部材（２０−１，２０−２）は、端子具（１０）を第１の方向から挟持する第１電極面（３１ａ，３１ｄ）と、第１の方向とは異なる第２の方向から挟持する第２電極面（３１ｂ，３１ｃ，３１ｅ，３１ｆ）とを少なくとも備え、かしめ工程において、電極部材（２０−１，２０−２）で端子具（１０）を第１、第２の方向を含む複数の方向から同時に挟持してかしめるようにしたことを特徴とする。
The present invention for solving the above-described problems is a method for producing a terminal (1) formed by conductively joining a terminal tool (10) to a conductor bundle (2) obtained by bundling a plurality of conductors (L) having an insulating coating. A caulking step in which the terminal member (10) mounted on the outer periphery of the wire bundle (2) is sandwiched and pressed between the electrode members (20-1, 20-2), and the electrode members (20-1, 20-2). And energizing the terminal tool (10) via a wire to carbonize or melt the insulating coating of the conductive wire (L) and conductively bond the terminal tool (10) and the conductive wire bundle (2). The electrode members (20-1, 20-2) have a first electrode surface (31 a, 31 d) that sandwiches the terminal tool (10) from the first direction, and a second direction different from the first direction. At least a second electrode surface (31b, 31c, 31e, 31f) to be sandwiched. Terminal device with members (20-1, 20-2) (10) the first, characterized in that as crimping and clamping simultaneously from a plurality of directions including the first direction.

本発明にかかる端子の製造方法によれば、かしめ工程において、第１電極面で挟持される第１の方向と第２電極面で挟持される第２の方向とを含む複数の方向から端子具を同時に挟持してかしめるようにしたことで、第１の方向（又は第２の方向）から挟持された端子具が第２の方向（又は第１の方向）に伸びる（変形する）ことを抑制できる。したがって、端子具に亀裂が生じることを防止でき、端子具からの導線の飛び出しを防止できる。また、第１の方向と第２の方向を含む複数の方向から端子具を同時に挟持するようにしたことで、端子具内の各方向に対して導線を確実に押圧することができ、端子具及び導線を効果的に密着させることができる。
また、複数の方向を向く電極面を設けたことで、電極面と端子具との接触面の角度を分散させることができるので、端子具にかかる圧力の均一化を図ることができる。したがって、端子具の外周を均等に押圧することができるので、端子の耐振動性、及び曲げやねじれに対する強度を向上させることができる。また、端子具に対して複数の向きに電流を流すことができるので、絶縁被覆の炭化（溶融）の均一化を図ることができる。
According to the method for manufacturing a terminal according to the present invention, in the caulking step, the terminal tool from a plurality of directions including a first direction sandwiched by the first electrode surface and a second direction sandwiched by the second electrode surface. By simultaneously clamping and crimping, the terminal tool clamped from the first direction (or the second direction) extends (deforms) in the second direction (or the first direction). Can be suppressed. Therefore, it is possible to prevent the terminal tool from being cracked and to prevent the lead wire from protruding from the terminal tool. In addition, since the terminal tool is sandwiched from a plurality of directions including the first direction and the second direction at the same time, the conductor can be reliably pressed against each direction in the terminal tool. In addition, the conductive wires can be effectively adhered.
In addition, since the electrode surfaces facing a plurality of directions are provided, the angle of the contact surface between the electrode surface and the terminal device can be dispersed, so that the pressure applied to the terminal device can be made uniform. Therefore, since the outer periphery of the terminal can be pressed evenly, the vibration resistance of the terminal and the strength against bending and twisting can be improved. In addition, since current can flow in a plurality of directions with respect to the terminal tool, carbonization (melting) of the insulating coating can be made uniform.

また、上記の端子の製造方法では、かしめ工程において、第１電極面（３１ａ，３１ｄ）及び第２電極面（３１ｂ及び３１ｃ，３１ｅ及び３１ｆ）を含む複数の電極面（３１）によってかしめられた端子具（１０）の断面形状は、多角形状に形成されるようにするとよい。これによれば、端子具が一方向から挟持されて平型にかしめられた場合と比較して、端子具の外周を均等に押圧することができるので、端子の耐振動性、及び曲げやねじれに対する強度を向上させることができる。
Further, in the above terminal manufacturing method, in the caulking step, the first electrode surface (31a, 31d) and the second electrode surface (31b and 31c, 31e and 31f) are caulked by a plurality of electrode surfaces (31). The cross-sectional shape of the terminal tool (10) may be formed in a polygonal shape. According to this, since the outer periphery of the terminal tool can be pressed evenly compared with the case where the terminal tool is clamped from one direction and caulked into a flat shape, the terminal is resistant to vibration , bending and twisting. The strength against can be improved.

また、この場合、かしめ工程において、かしめられた端子具（１０）の断面形状が正六角形状になるようにするとなお良い。このように、端子具の断面形状が正六角形状になるようにすれば、端子具を装着した導線束及び各導線の断面形状が正六角形型（いわゆるハニカム構造）に収束するようになるので、端子具及び導線間に隙間ができることを抑制でき、導線間の熱伝導性の低下を抑制できる。また、端子具と導線を強固に密着させることができるので、端子の耐振動性、耐久性を向上させることができる。
In this case, it is more preferable that the crimped terminal tool (10) has a regular hexagonal cross-sectional shape. Thus, if the cross-sectional shape of the terminal tool is a regular hexagonal shape, the cross-sectional shape of the lead wire bundle and each lead wire on which the terminal tool is mounted will converge to a regular hexagonal shape (so-called honeycomb structure). It can suppress that a clearance gap is made between a terminal tool and a conducting wire, and can suppress the fall of thermal conductivity between conducting wires. Moreover, since the terminal tool and the conducting wire can be firmly adhered, the vibration resistance and durability of the terminal can be improved.

また、この端子の製造方法では、電極部材（２０−１，２０−２）には、それぞれに電極面（３１ａ〜３１ｆ）を設けてなる小片状の電極チップ（３０ａ〜３０ｆ）が取り付けられているとよい。このように、電極面を有する小片状の電極チップを設けたことで、電極面による端子具の押圧方向や押圧角度の調節が簡単に行えるようになる。また、端子具に対する電流の流し方を最適化できるので、端子の加熱具合の均一化を図ることができ、端子具の導電性、耐久性を向上させることができる。また、電極面を小片状の電極チップに設けたことで、電極部材における高価な材料の使用量を減らすことができるため、端子の製造コストの低減を図ることができる。 In this terminal manufacturing method, the electrode members (20-1 and 20-2) are attached with small piece-like electrode tips (30a to 30f) each having an electrode surface (31a to 31f). It is good to have. Thus, by providing the small piece-shaped electrode tip having the electrode surface, the pressing direction and the pressing angle of the terminal tool by the electrode surface can be easily adjusted. In addition, since the current flow to the terminal tool can be optimized, the heating condition of the terminal can be made uniform, and the conductivity and durability of the terminal tool can be improved. In addition, since the electrode surface is provided on the small piece of the electrode chip, the amount of expensive material used in the electrode member can be reduced, so that the manufacturing cost of the terminal can be reduced.

また、この場合、電極チップ（３０ａ〜３０ｆ）は、電極部材（２０−１，２０−２）に対して取り外し可能であり、かつ、その取付位置及び角度を調整することで、電極面（３１ａ〜３１ｆ）の端子具（１０）に対する当接状態を調整可能であるとよい。このように、電極チップを取り外し可能としたことで、電極面の交換や再研磨などのメンテナンスが簡単に行えるようになる。また、電極面の端子具に対する当接状態を調整可能であることで、かしめ工程による端子具の加工形状を任意に設定できるようになる。 In this case, the electrode tips (30a to 30f) can be detached from the electrode members (20-1 and 20-2), and the electrode surface (31a) can be adjusted by adjusting the attachment position and angle. It is good that the contact state with respect to the terminal tool (10) of .about.31f) can be adjusted. Thus, by making the electrode tip removable, maintenance such as replacement of electrode surfaces and re-polishing can be easily performed. In addition, since the contact state of the electrode surface with the terminal tool can be adjusted, the processing shape of the terminal tool by the caulking process can be arbitrarily set.

また、この端子の製造方法では、端子具（１０−２）は、導線束（２）を収容する中空状の本体部（１６）と、本体部（１６）内で複数の導線（Ｌ）を仕切るようにそれらの隙間に設置される板状のリブ（１８）とを備えており、端子具（１０）の本体部（１６）がかしめられる際、リブ（１８）によって本体部（１６）内の導線（Ｌ）の位置が規制されるようにするとよい。このように、端子具にリブを設けていれば、ヒュージング処理の際、端子具内での導線の動きを規制できると共に、導線間に隙間ができることを防止できるので、導線間の熱伝導性の低下を防止することができる。また、リブによって、端子具内の導線に均等に熱を与えることができるので、導線束の内部の均一な導電性を確保できる。 Moreover, in this terminal manufacturing method, the terminal tool (10-2) includes a hollow body portion (16) that houses the wire bundle (2), and a plurality of wires (L) within the body portion (16). Plate-like ribs (18) installed in the gaps so as to partition, and when the main body part (16) of the terminal tool (10) is caulked, the ribs (18) have the inside of the main body part (16). The position of the lead wire (L) may be regulated. As described above, if the rib is provided in the terminal tool, the movement of the lead wire in the terminal tool can be restricted during the fusing process, and a gap between the lead wires can be prevented, so that the thermal conductivity between the lead wires can be prevented. Can be prevented. Moreover, since heat can be uniformly given to the conducting wire in the terminal tool by the rib, uniform conductivity inside the conducting wire bundle can be ensured.

また、本発明は、絶縁被覆を有する導線（Ｌ）を複数本束ねてなるコイル（５２，５３）と、コイル（５２，５３）に装着した端子具（１０）をヒュージング処理により電気的導通を確保した状態で接続してなる端子（５１，５５）と、を備えた電動機（５０）であって、端子（５１，５５）は、本発明にかかる上記いずれかの方法で製造された端子（１）であることを特徴とする。本発明の電動機によれば、上記の製造方法で製造された端子を採用したことで、端子の導電性能や耐久性を向上させることができるので、信頼性の高い電動機となる。
なお、上記の括弧内の符号は、後述する実施形態の対応する構成要素の符号を本発明の一例として示したものである。 Further, according to the present invention, the coil (52, 53) formed by bundling a plurality of conductive wires (L) having an insulating coating and the terminal device (10) attached to the coil (52, 53) are electrically connected by a fusing treatment. And an electric motor (50) provided with a terminal (51, 55) connected in a state in which the terminal (51, 55) is secured, and the terminal (51, 55) is a terminal manufactured by any one of the methods according to the present invention. It is (1). According to the electric motor of the present invention, since the terminal manufactured by the above manufacturing method is adopted, the electric conductivity and durability of the terminal can be improved, so that the electric motor has high reliability.
In addition, the code | symbol in said parenthesis has shown the code | symbol of the corresponding component of embodiment mentioned later as an example of this invention.

本発明にかかる端子の製造方法によれば、かしめ工程において、端子を所望の形状に加工することが簡単に行えて、端子の十分な接合強度を確保できると共に、導電性能を向上させることができ、かつ、電極部材のメンテナンスを簡単に行うことができる。また、当該製造方法で製造した端子を用いることで、信頼性の高い電動機を提供できる。 According to the method for manufacturing a terminal according to the present invention, it is possible to easily process the terminal into a desired shape in the caulking process, to secure a sufficient bonding strength of the terminal, and to improve the conductive performance. And maintenance of an electrode member can be performed easily. In addition, a highly reliable electric motor can be provided by using the terminal manufactured by the manufacturing method.

本発明の一実施形態にかかる端子の製造に用いるヒュージング処理用の電極部材を示す分解斜視図である。It is a disassembled perspective view which shows the electrode member for a fusing process used for manufacture of the terminal concerning one Embodiment of this invention. 電極部材を示す図で、電極ホルダーに電極チップを取り付けた状態を示す正面図である。It is a figure which shows an electrode member, and is a front view which shows the state which attached the electrode tip to the electrode holder. 端子のかしめ工程を説明するための図で、（ａ）は、電極部材で端子をかしめる前の状態、（ｂ）は、電極部材で端子をかしめた後の状態を示す図である。It is a figure for demonstrating the crimping process of a terminal, (a) is a state before crimping a terminal with an electrode member, (b) is a figure which shows the state after crimping a terminal with an electrode member. 電極部材及び該電極部材でかしめた端子の構成例を示す図で、（ａ）は、かしめた端子の両側面間が略菱形状の場合、（ｂ）は、かしめた端子の両側面間が略Ｖ字形状の場合、（ｃ）は、かしめた端子の断面が略正六角形状の場合を示す。It is a figure which shows the example of a structure of the terminal crimped with the electrode member and this electrode member, (a) is between the both sides | surfaces of the crimped terminal, (b) is between the both sides | surfaces of the crimped terminal. In the case of a substantially V shape, (c) shows the case where the crimped terminal has a substantially regular hexagonal cross section. 本発明の第２実施形態にかかる方法で製造される端子の構成例を示す図で、（ａ）は、電極部材でかしめる前の端子を示す図、（ｂ）は、電極部材でかしめた後の端子を示す図である。It is a figure which shows the example of a structure of the terminal manufactured by the method concerning 2nd Embodiment of this invention, (a) is a figure which shows the terminal before crimping with an electrode member, (b) is crimped with the electrode member. It is a figure which shows a subsequent terminal. 本発明の第３施形態にかかる電動機の構成例を示す図で、（ａ）は、電動機の全体構成を示す概略平面図であり、（ｂ）は、固定子の斜視図である。It is a figure which shows the structural example of the electric motor concerning 3rd Embodiment of this invention, (a) is a schematic plan view which shows the whole structure of an electric motor, (b) is a perspective view of a stator. （ａ）は、ヒュージング処理で接合される端子を示す図であり、（ｂ）は、当該端子の接合に用いる従来の電極部材の構成例を示す図である。(A) is a figure which shows the terminal joined by a fusing process, (b) is a figure which shows the structural example of the conventional electrode member used for joining of the said terminal.

以下、添付図面を参照して本発明の実施形態を詳細に説明する。図１は、本発明の一実施形態にかかる端子の製造方法に用いるヒュージング処理用の電極部材２０（第１電極部材２０−１）を示す分解斜視図である。また、図２は、電極部材２０（第１電極部材２０−１、第２電極部材２０−２）を示す図で、後述する電極ホルダー２５に電極チップ３０を取り付けた状態を示す正面図である。ただし、図２では、電極ホルダー２５のカバー２４を取り外した状態を図示している。なお、図１では、図２に示す第１電極部材２０−１と第２電極部材２０−２のうち、第２電極部材２０−２を省略して、第１電極部材２０−１のみを図示している。また、図３は、後述するかしめ工程の手順を説明するための図で、（ａ）は、電極部材２０で端子具１０をかしめる前の状態、（ｂ）は、電極部材２０で端子具１０をかしめた後の状態を示す図である。なお、図３に示す端子１は、図７（ｂ）に示す端子１における筒状部１１の断面が示されている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an exploded perspective view showing a fusing treatment electrode member 20 (first electrode member 20-1) used in a method for manufacturing a terminal according to an embodiment of the present invention. Moreover, FIG. 2 is a figure which shows the electrode member 20 (1st electrode member 20-1, 2nd electrode member 20-2), and is a front view which shows the state which attached the electrode chip | tip 30 to the electrode holder 25 mentioned later. . However, FIG. 2 shows a state where the cover 24 of the electrode holder 25 is removed. In FIG. 1, among the first electrode member 20-1 and the second electrode member 20-2 shown in FIG. 2, the second electrode member 20-2 is omitted, and only the first electrode member 20-1 is illustrated. Show. 3A and 3B are diagrams for explaining a procedure of a caulking process to be described later. FIG. 3A is a state before the terminal member 10 is caulked with the electrode member 20, and FIG. It is a figure which shows the state after caulking 10. In addition, the terminal 1 shown in FIG. 3 shows the cross section of the cylindrical part 11 in the terminal 1 shown in FIG.7 (b).

本実施形態の製造方法で製造される端子１は、図７（ａ）に示す従来の端子１と同じく、絶縁被覆を有する導線Ｌを複数本束ねてなる導線束２と、導線束２に被せて装着する筒状の端子具１０とを備えている。導線束２は、表面に絶縁被覆を有する導線Ｌを多数本（数十本程）束ねて構成されている。絶縁被覆を有する導線Ｌとして、エナメル銅線（ＥＷ）、ホルマール銅線（ＰＶＦ）、ポリエステル銅線（ＰＥＷ）、及びアミドイミド銅線（ＡＩＷ）など各種材料で被覆された銅線を用いることができる。一方、導線束２に装着する端子具１０は、金属製の部材であり、中空の筒状部１１と該筒状部１１の先端に設けた略平板状の接続部１２とを有する形状になっている。 As with the conventional terminal 1 shown in FIG. 7A, the terminal 1 manufactured by the manufacturing method of the present embodiment covers a conductor bundle 2 formed by bundling a plurality of conductors L having an insulating coating, and the conductor bundle 2. And a cylindrical terminal 10 to be mounted. The conducting wire bundle 2 is configured by bundling a large number (several tens) of conducting wires L having an insulating coating on the surface. As the conductive wire L having an insulating coating, copper wires coated with various materials such as enameled copper wire (EW), formal copper wire (PVF), polyester copper wire (PEW), and amideimide copper wire (AIW) can be used. . On the other hand, the terminal tool 10 attached to the conductor bundle 2 is a metal member and has a shape having a hollow cylindrical portion 11 and a substantially flat connecting portion 12 provided at the tip of the cylindrical portion 11. ing.

そして、本実施形態の端子の製造方法は、導線束２に装着した端子具１０の筒状部１１を、図２に示す第１電極部材２０−１と第２電極部材２０−２とで挟持して押圧するかしめ工程と、第１電極部材２０−１と第２電極部材２０−２を介して端子具１０に通電することで、導線Ｌの絶縁被覆を炭化させて端子具１０と導線束２とを導電接合する通電工程とを有している。そして、端子具１０は、上記のかしめ工程において、図３（ｂ）に示すように、第１電極部材２０−１及び第２電極部材２０−２の電極面３１ａ〜３１ｆで筒状部１１の周囲が挟持されてかしめられるようになっている。 And the manufacturing method of the terminal of this embodiment clamps the cylindrical part 11 of the terminal tool 10 with which the conducting wire bundle 2 was mounted | worn with the 1st electrode member 20-1 and the 2nd electrode member 20-2 which are shown in FIG. The terminal tool 10 and the wire bundle are carbonized by carbonizing the insulation coating of the conductor L by energizing the terminal tool 10 through the caulking step of pressing and the first electrode member 20-1 and the second electrode member 20-2. 2 and an energization step for conducting conductive bonding. And in the above-mentioned caulking process, as shown in FIG. 3 (b), the terminal tool 10 is formed of the cylindrical portion 11 on the electrode surfaces 31a to 31f of the first electrode member 20-1 and the second electrode member 20-2. The surrounding area is clamped.

図２に示すように、電極部材２０は、正面側（導線束２軸方向の一端側）から見て斜め上方に配置される第１電極部材２０−１と、斜め下方に配置される第２電極部材２０−２とを備えて構成されている。第１電極部材２０−１と第２電極部材２０−２は、互いに同一の構成であり、両者の中心に対して互いが１８０度回転した点対称の配置になっている。そのため、以下では、電極部材２０の構成部品の説明として、第１電極部材２０−１を例に説明するが、当該説明は、第２電極部材２０−２の構成部品にもあてはまるものである。 As shown in FIG. 2, the electrode member 20 includes a first electrode member 20-1 that is disposed obliquely upward as viewed from the front side (one end side in the two-axis direction of the conductor bundle) and a second electrode that is disposed obliquely below. The electrode member 20-2 is provided. The 1st electrode member 20-1 and the 2nd electrode member 20-2 are mutually the same structures, and are the point symmetrical arrangement which mutually rotated 180 degrees to the center of both. Therefore, in the following description, the first electrode member 20-1 will be described as an example of the component parts of the electrode member 20. However, the description also applies to the component parts of the second electrode member 20-2.

第１電極部材２０−１は、本体部２１及び該本体部２１に被せて取り付けるカバー２４からなる電極ホルダー２５と、電極ホルダー２５に収容された複数の電極チップ３０（３０ａ〜３０ｆ）と、電極ホルダー２５を取り付けるための支持部材２６を備えて構成されている。支持部材２６は、電極ホルダー２５を装着するためのホルダー装着部２６ａと、ホルダー装着部２６ａから延びて図示しない移動機構又は支持機構に支持される棒状のシャンク部２６ｂとを備えている。電極ホルダー２５の本体部２１は、略三角形状の外形を有する板状の部材からなり、その一方の面には、電極チップ３０を収容するための溝状の第１収容部２７及び第２収容部２８が設けられている。第１収容部２７と第２収容部２８は、本体部２１の斜辺に沿って、上側と下側にそれぞれ設けられている。また、本体部２１の斜辺２１ａの略中央には、略直角形状に切り欠かれた切欠部２１ｂが設けられている。そして、第１収容部２７は、上下方向に延びる一本の直線状の溝部２７ａと、該溝部２７ａの上端に連接する略長方形状の溝部２７ｂとを一体に備えており、全体が略Ｔ字型の凹部として形成されている。また、第２収容部２８は、水平方向に延びる直線状の溝部２８ａと、該溝部２８ａの左端に連接する略長方形状の溝部２８ｂとを一体に備えており、全体が横向きの略Ｔ字型の凹部として形成されている。第２収容部２８の溝部２８ａは、互いに平行な二本の細溝を備えて構成されている。また、第１収容部２７の溝部２７ａの下端と、第２収容部２８の溝部２８ａの右端とがそれぞれ切欠部２１ｂに貫通している。 The first electrode member 20-1 includes an electrode holder 25 including a main body 21 and a cover 24 attached to the main body 21, a plurality of electrode tips 30 (30 a to 30 f) accommodated in the electrode holder 25, and electrodes A support member 26 for attaching the holder 25 is provided. The support member 26 includes a holder mounting portion 26a for mounting the electrode holder 25, and a rod-shaped shank portion 26b extending from the holder mounting portion 26a and supported by a moving mechanism or a support mechanism (not shown). The main body portion 21 of the electrode holder 25 is made of a plate-like member having a substantially triangular outer shape, and a groove-shaped first housing portion 27 and a second housing for housing the electrode chip 30 are provided on one surface thereof. A portion 28 is provided. The first storage portion 27 and the second storage portion 28 are provided on the upper side and the lower side, respectively, along the oblique side of the main body portion 21. A cutout portion 21b cut out in a substantially right-angle shape is provided at the approximate center of the oblique side 21a of the main body portion 21. And the 1st accommodating part 27 is integrally provided with one linear groove part 27a extended in an up-down direction, and the substantially rectangular groove part 27b connected to the upper end of this groove part 27a, and the whole is substantially T-shaped. It is formed as a concave part of the mold. Further, the second housing portion 28 is integrally provided with a linear groove portion 28a extending in the horizontal direction and a substantially rectangular groove portion 28b connected to the left end of the groove portion 28a. Are formed as recesses. The groove part 28a of the second housing part 28 is configured to include two narrow grooves parallel to each other. Moreover, the lower end of the groove part 27a of the 1st accommodating part 27 and the right end of the groove part 28a of the 2nd accommodating part 28 have each penetrated the notch part 21b.

電極チップ３０（３０ａ〜３０ｆ）は、細型の四角柱状で、先端が端子具１０の表面に当接する電極面３１（３１ａ〜３１ｆ）になっている。図３に示すように、第１の電極部材２０−１には、合計３個の電極チップ３０ａ，３０ｂ，３０ｃが取り付けられている。すなわち、第１収容部２７の溝部２７ａに設置した中央上電極チップ３０ａと、第２収容部２８の溝部２８ａに設置した左上電極チップ３０ｂ及び左下電極チップ３０ｃとが設けられている。中央上電極チップ３０ａは、その電極面３１ａが真下を向いて配置されており、左上電極チップ３０ｂと左下電極チップ３０ｃは、それらの電極面３１ｂ，３１ｃが右側を向いて配置されている。さらに、左上電極チップ３０ｂの電極面３１ｂと左下電極チップ３０ｃの電極面３１ｃとは、互いに異なる角度の平面になっている。具体的には、電極面３１ｂと電極面３１ｃは垂直方向に対して異なる向きに傾斜しており、互いの面が谷折り状の略Ｖ字型を成すように配置されている。 The electrode tip 30 (30a to 30f) has a thin quadrangular prism shape, and the tip is an electrode surface 31 (31a to 31f) that abuts against the surface of the terminal device 10. As shown in FIG. 3, a total of three electrode tips 30a, 30b, and 30c are attached to the first electrode member 20-1. That is, the center upper electrode chip 30a installed in the groove part 27a of the first housing part 27 and the upper left electrode chip 30b and lower left electrode chip 30c installed in the groove part 28a of the second housing part 28 are provided. The center upper electrode tip 30a is disposed with its electrode surface 31a facing downward, and the upper left electrode tip 30b and the lower left electrode tip 30c are disposed with their electrode surfaces 31b and 31c facing right. Furthermore, the electrode surface 31b of the upper left electrode tip 30b and the electrode surface 31c of the lower left electrode tip 30c are flat surfaces having different angles. Specifically, the electrode surface 31b and the electrode surface 31c are inclined in different directions with respect to the vertical direction, and are arranged so that the surfaces of each other form a substantially V-shaped valley-fold shape.

また、第２の電極部材２０−１には、合計３個の電極チップ３０ｄ，３０ｅ，３０ｆが取り付けられている。すなわち、第１収容部２７の溝部２７ａに設置した中央下電極チップ３０ｄと、第２収容部２８の溝部２８ａに設置した右上電極チップ３０ｅ及び右下電極チップ３０ｆとが設けられている。中央下電極チップ３０ｄは、その電極面３１ｄが真上を向いて配置されており、右上電極チップ３０ｅと右下電極チップ３０ｆは、それらの電極面３１ｅ，３１ｆが左側を向いて配置されている。さらに、右上電極チップ３０ｅの電極面３１ｅと右下電極チップ３０ｆの電極面３１ｆとは、互いに異なる角度の平面になっている。具体的には、電極面３１ｅと電極面３１ｆは垂直方向に対して異なる向きに傾斜しており、互いの面が谷折り状の略Ｖ字型を成すように配置されている。 In addition, a total of three electrode tips 30d, 30e, and 30f are attached to the second electrode member 20-1. That is, a central lower electrode chip 30d installed in the groove 27a of the first housing part 27, and an upper right electrode chip 30e and a lower right electrode chip 30f installed in the groove 28a of the second housing part 28 are provided. The center lower electrode tip 30d is arranged with its electrode surface 31d facing directly above, and the upper right electrode tip 30e and the lower right electrode tip 30f are arranged with their electrode surfaces 31e, 31f facing the left side. . Furthermore, the electrode surface 31e of the upper right electrode tip 30e and the electrode surface 31f of the lower right electrode tip 30f are flat surfaces with different angles. Specifically, the electrode surface 31e and the electrode surface 31f are inclined in different directions with respect to the vertical direction, and are arranged so that each surface forms a substantially V-shape that is a valley fold shape.

第１、第２収容部２７，２８の溝部２７ｂ，２８ｂは、電極チップ３０を収容した溝部２７ａ，２８ａよりも幅が広い略長方形状に形成されている。この溝部２７ｂ，２８ｂには、電極チップ３０の位置を調整するための位置調整具３３，３４が収容されている。位置調整具３３，３４は、斜辺を介して互いに面接触する略三角形状の一対の部材３３ａ，３３ｂ及び３４ａ，３４ｂを備えている。また、第１、第２収容部２７，２８内で位置調整具３３を移動させるための位置調整用ネジ３５（３５ａ，３５ｂ）が設置されている。位置調整用ネジ３５ａ，３５ｂは、本体部２１の側面から収容部２７，２８内にそれぞれ貫通するネジ孔２３ａ，２３ｂに挿通されている。これにより、位置調整具３３，３４の一方の部材３３ａ，３４ａが位置調整用ネジ３５ａ，３５ｂに当接しており、他方の部材３３ｂ，３４ｂが電極チップ３０ａ，３０ｂ，３０ｃに当接している。 The groove portions 27b and 28b of the first and second housing portions 27 and 28 are formed in a substantially rectangular shape having a width wider than the groove portions 27a and 28a that house the electrode chip 30. Position adjusting tools 33 and 34 for adjusting the position of the electrode tip 30 are accommodated in the grooves 27b and 28b. The position adjusters 33 and 34 include a pair of substantially triangular members 33a and 33b and 34a and 34b that are in surface contact with each other via the hypotenuse. In addition, position adjusting screws 35 (35a, 35b) for moving the position adjusting tool 33 in the first and second accommodating portions 27, 28 are installed. The position adjusting screws 35a and 35b are inserted into screw holes 23a and 23b penetrating from the side surface of the main body portion 21 into the housing portions 27 and 28, respectively. Thereby, one member 33a, 34a of the position adjusting tool 33, 34 is in contact with the position adjusting screw 35a, 35b, and the other member 33b, 34b is in contact with the electrode tip 30a, 30b, 30c.

上記の構成により、位置調整具３３，３４の一方の部材３３ａ，３４ａは、位置調整用ネジ３５ａ，３５ｂに押されてその軸方向に移動可能になっており、他方の部材３３ｂ，３４ｂは、斜辺を介して一方の部材３３ａ，３４ａに押されることで、電極チップ３０ａ，３０ｂ，３０ｃ（３０ｄ，３０ｅ，３０ｆ）を長手方向に移動させるようになっている。したがって、位置調整用ネジ３５ａ，３５ｂを回転させることで、電極チップ３０ａ，３０ｂ，３０ｃ（３０ｄ，３０ｅ，３０ｆ）の電極面３１ａ，３１ｂ，３１ｃ（３１ｄ，３１ｅ，３１ｆ）が電極ホルダー２５から突出する突出量を調節できる。 With the above configuration, one of the members 33a and 34a of the position adjusters 33 and 34 is pushed by the position adjusting screws 35a and 35b so as to be movable in the axial direction, and the other members 33b and 34b are The electrode tips 30a, 30b, 30c (30d, 30e, 30f) are moved in the longitudinal direction by being pushed by one member 33a, 34a via the oblique side. Therefore, the electrode surfaces 31a, 31b, 31c (31d, 31e, 31f) of the electrode tips 30a, 30b, 30c (30d, 30e, 30f) protrude from the electrode holder 25 by rotating the position adjusting screws 35a, 35b. You can adjust the amount of protrusion.

図２に示すように、電極チップ３０と位置調整具３３，３４が本体部２１の第１、第２収容部２７，２８に収容された状態で、本体部２１にカバー２４が被せられる。この本体部２１とカバー２４からなる電極ホルダー２５は、固定ネジ２５ａで支持部材２６のホルダー装着部２６ａに装着される。なお、電極チップ３０は、位置調整用ネジ３５によって電極ホルダー２５からの突出量を調節された後、カバー２４に取り付けた電極固定ネジ２５ｂで固定されるようになっている。 As shown in FIG. 2, the cover 24 is placed on the main body 21 in a state where the electrode chip 30 and the position adjustment tools 33 and 34 are stored in the first and second storage portions 27 and 28 of the main body 21. The electrode holder 25 including the main body 21 and the cover 24 is mounted on the holder mounting portion 26a of the support member 26 with a fixing screw 25a. The electrode tip 30 is fixed by an electrode fixing screw 25 b attached to the cover 24 after the amount of protrusion from the electrode holder 25 is adjusted by the position adjusting screw 35.

ここで、図７（ｂ）に示す従来の電極部材１００では、電極部１００ａ及びシャンク部１００ｂの全体をタングステンで構成していた。これに対して、本実施形態の電極部材２０では、図１又は図２に示す各構成部品のうち、電極チップ３０のみをタングステンで構成し、他の部材（電極ホルダー２５及び支持部材２６）を真鍮や鋼（スチール）など他の材料で構成することが可能である。すなわち、本実施形態では、電極面３１を備えた小片状の電極チップ３０を設けたことで、比較的高価な材料であるタングステンを電極チップ３０のみに使用し、電極部材２０の他の部分には、タングステンよりも安価な材料を使用することができる。したがって、電極部材２０における高価な材料の使用量を減らすことができる。これにより、端子１の製造コストの低減を図ることができる。 Here, in the conventional electrode member 100 shown in FIG.7 (b), the whole electrode part 100a and the shank part 100b were comprised with tungsten. On the other hand, in the electrode member 20 of the present embodiment, among the components shown in FIG. 1 or FIG. 2, only the electrode chip 30 is made of tungsten, and the other members (the electrode holder 25 and the support member 26) are made. It can be composed of other materials such as brass or steel. That is, in the present embodiment, by providing the small piece-shaped electrode tip 30 provided with the electrode surface 31, tungsten that is a relatively expensive material is used only for the electrode tip 30, and other parts of the electrode member 20 are used. For this, a material cheaper than tungsten can be used. Therefore, the amount of expensive material used in the electrode member 20 can be reduced. Thereby, the manufacturing cost of the terminal 1 can be reduced.

以上の各部品で構成される第１電極部材２０−１と第２電極部材２０−２は、図２に示すように、互いの電極ホルダー２５，２５の斜辺２１ａ，２１ａを向き合わせた状態で対向するように設置される。また、第１電極部材２０−１と第２電極部材２０−２は、支持部材２６，２６を移動させる図示しない移動機構によって、互いの電極ホルダー２５，２５が相対的に移動するようになっている。これにより、第１電極部材２０−１の電極チップ３０（３０ａ〜３０ｃ）の各電極面３１（３１ａ〜３１ｃ）と、第２電極部材２０−２の電極チップ３０（３０ｄ〜３０ｆ）の各電極面３１（３１ｄ〜３１ｆ）との間に、端子１の筒状部１１が挟持されるようになっている。 As shown in FIG. 2, the first electrode member 20-1 and the second electrode member 20-2 configured by the above components are in a state where the oblique sides 21 a and 21 a of the electrode holders 25 and 25 face each other. Installed to face each other. The first electrode member 20-1 and the second electrode member 20-2 are moved relative to each other by a moving mechanism (not shown) that moves the support members 26, 26. Yes. Thereby, each electrode surface 31 (31a-31c) of the electrode tip 30 (30a-30c) of the 1st electrode member 20-1 and each electrode of the electrode tip 30 (30d-30f) of the 2nd electrode member 20-2 The cylindrical portion 11 of the terminal 1 is sandwiched between the surface 31 (31d to 31f).

そして、第１電極部材２０−１の中央上電極チップ３０ａの電極面３１ａと、第２電極部材２０−２の中央下電極チップ３０ｄの電極面３１ｄとで、端子１の筒状部１１を上下方向（第１の方向）から挟持する一対の電極面（第１電極面）３１ａ，３１ｄが構成されている。一方、第１電極部材２０−１の左上電極チップ３０ｂの電極面３１ｂ及び左下電極チップ３０ｃの電極面３１ｃと、第２電極部材２０−２の右上電極チップ３０ｅの電極面３１ｅ及び右下電極チップ３０ｆの電極面３１ｆとで、端子具１０の筒状部１１を左右方向（第２の方向）から挟持する一対の電極面（第２電極面）３１ｂ及び３１ｃ，３１ｅ及び３１ｆが構成されている。したがって、第１電極部材２０−１と第２電極部材２０−２とで端子具１０の筒状部１１を上下方向（第１の方向）と左右方向（第２の方向）の二方向から同時に挟持してかしめることができる。 The cylindrical portion 11 of the terminal 1 is moved up and down by the electrode surface 31a of the upper center electrode tip 30a of the first electrode member 20-1 and the electrode surface 31d of the lower center electrode tip 30d of the second electrode member 20-2. A pair of electrode surfaces (first electrode surfaces) 31a and 31d sandwiched from the direction (first direction) are configured. On the other hand, the electrode surface 31b of the upper left electrode tip 30b and the electrode surface 31c of the lower left electrode tip 30c of the first electrode member 20-1, and the electrode surface 31e and the lower right electrode tip of the upper right electrode tip 30e of the second electrode member 20-2. The electrode surface 31f of 30f constitutes a pair of electrode surfaces (second electrode surfaces) 31b and 31c, 31e and 31f that sandwich the cylindrical portion 11 of the terminal tool 10 from the left-right direction (second direction). . Accordingly, the first electrode member 20-1 and the second electrode member 20-2 allow the cylindrical portion 11 of the terminal tool 10 to be simultaneously moved from the two directions of the vertical direction (first direction) and the horizontal direction (second direction). Can be clamped.

また、本実施形態の電極部材２０では、端子具１０を左方向から押圧する電極面３１ｂ，３１ｃは、端子具１０に対する当接角度が互いに異なる電極面３１ｂと電極面３１ｃとの二平面を有しており、端子具１０を右方向から押圧する電極面３１ｅ，３１ｆは、端子具１０に対する当接角度が互いに異なる電極面３１ｅと電極面３１ｆとの二平面を有している。したがって、端子具１０の筒状部１１をかしめる電極面３１は、筒状部１１の外周に配列された合計６個の平面状の電極面３１ａ〜３１ｆで構成されている。したがって、第１電極部材２０−１と第２電極部材２０−２とでかしめられた端子１は、６個の電極面３１ａ〜３１ｆによってその周囲が押圧されることで、断面形状が略六角形状に形成される。この点については、下記で詳述する。 Further, in the electrode member 20 of the present embodiment, the electrode surfaces 31b and 31c that press the terminal tool 10 from the left direction have two planes of the electrode surface 31b and the electrode surface 31c having different contact angles with the terminal tool 10. The electrode surfaces 31e and 31f that press the terminal tool 10 from the right direction have two planes of an electrode surface 31e and an electrode surface 31f having different contact angles with the terminal tool 10. Therefore, the electrode surface 31 that crimps the tubular portion 11 of the terminal tool 10 is configured by a total of six planar electrode surfaces 31 a to 31 f arranged on the outer periphery of the tubular portion 11. Accordingly, the terminal 1 caulked by the first electrode member 20-1 and the second electrode member 20-2 is pressed around the six electrode surfaces 31a to 31f, so that the cross-sectional shape is substantially hexagonal. Formed. This point will be described in detail below.

次に、端子１の製造方法について説明する。端子１を製造するには、まず、図７（ａ）に示すように、導線束２に端子具１０を装着する。これには、端子具１０の筒状部１１に導線束２の先端２ａを差し込んで挿入する。このようにして、導線束２に端子具１０を装着したら、図３（ａ）に示すように、端子具１０の筒状部１１を第１電極部材２０−１と第２電極部材２０−２の間、詳細には、第１電極部材２０−１に取り付けた各電極チップ３０ａ〜３０ｃの電極面３１ａ〜３１ｃと、第２電極部材２０−２に取り付けた各電極チップ３０ｄ〜３０ｆの電極面３１ｄ〜３１ｆとの間に設置する。そして、図３（ｂ）に示すように、端子具１０の筒状部１１の外周側面を各電極面３１ａ〜３１ｆで挟持する。これにより、端子具１０の筒状部１１が６個の電極面３１ａ〜３１ｆで押圧されてかしめられる。ここで、６個の電極面３１ａ〜３１ｆが六角形状に配列されていることで、図３（ｂ）に示すように、端子具１０の筒状部１１の断面が六角形状にかしめられる。 Next, a method for manufacturing the terminal 1 will be described. To manufacture the terminal 1, first, as shown in FIG. 7A, the terminal tool 10 is attached to the conductor bundle 2. For this, the distal end 2 a of the wire bundle 2 is inserted into the cylindrical portion 11 of the terminal tool 10 and inserted. In this way, when the terminal tool 10 is mounted on the conductor bundle 2, as shown in FIG. 3A, the cylindrical portion 11 of the terminal tool 10 is replaced with the first electrode member 20-1 and the second electrode member 20-2. In detail, in detail, the electrode surfaces 31a to 31c of the electrode tips 30a to 30c attached to the first electrode member 20-1 and the electrode surfaces of the electrode tips 30d to 30f attached to the second electrode member 20-2 It is installed between 31d to 31f. And as shown in FIG.3 (b), the outer peripheral side surface of the cylindrical part 11 of the terminal tool 10 is clamped by each electrode surface 31a-31f. Thereby, the cylindrical part 11 of the terminal tool 10 is pressed and crimped by the six electrode surfaces 31a-31f. Here, since the six electrode surfaces 31a to 31f are arranged in a hexagonal shape, the cross section of the cylindrical portion 11 of the terminal tool 10 is caulked in a hexagonal shape as shown in FIG.

この状態で、第１電極部材２０−１と第２電極部材２０−２の間に通電することで、端子具１０内の導線Ｌの絶縁被覆を炭化（溶融）させて排除し、端子具１０と導線Ｌとを導電接合する。なお、第１、第２電極部材２０−１，２０−２間の通電は、図３（ａ）に示す状態から、図３（ｂ）に示す状態に端子具１０をかしめる際に同時に行ってもよいし、第１、第２電極部材２０−１，２０−２で端子具１０をかしめて図３（ｂ）の状態にした後で行うようにしてもよい。 In this state, by energizing between the first electrode member 20-1 and the second electrode member 20-2, the insulating coating of the conductive wire L in the terminal tool 10 is carbonized (melted) to be eliminated, and the terminal tool 10 And the conductive wire L are conductively joined. The energization between the first and second electrode members 20-1 and 20-2 is simultaneously performed when the terminal tool 10 is caulked from the state shown in FIG. 3A to the state shown in FIG. Alternatively, it may be performed after the terminal 10 is crimped with the first and second electrode members 20-1 and 20-2 to the state shown in FIG.

図４は、電極部材２０とそれによって形成される端子１の構成例を示す図である。なお、図４では、図３と同様、端子１は筒状部１１の断面を図示している。図４（ａ）に示す電極部材２０では、第１電極部材２０−１に設けた電極面３１ｂと電極面３１ｃとが互いに谷折り状のＶ字型を成しており、かつ、第２電極部材２０−２に設けた電極面３１ｅと電極面３１ｆとが互いに谷折り状のＶ字型を成している。したがって、左右の４個の電極面３１及び３１ｃ，３１ｅ及び３１ｆは、略菱形状に配列されている。これにより、同図に示す電極部材２０によって形成される端子１は、左右の側面間の形状が略菱形状に形成されている。 FIG. 4 is a diagram illustrating a configuration example of the electrode member 20 and the terminal 1 formed thereby. In FIG. 4, as in FIG. 3, the terminal 1 shows a cross section of the cylindrical portion 11. In the electrode member 20 shown in FIG. 4A, the electrode surface 31b and the electrode surface 31c provided on the first electrode member 20-1 are V-shaped in a valley fold shape, and the second electrode The electrode surface 31e and the electrode surface 31f provided on the member 20-2 form a V-shape that is valley-folded. Accordingly, the four left and right electrode surfaces 31 and 31c, 31e and 31f are arranged in a substantially rhombus shape. As a result, the terminal 1 formed by the electrode member 20 shown in the figure has a substantially rhombus shape between the left and right side surfaces.

一方、同図（ｂ）に示す電極部材２０は、第１電極部材２０−１の電極面３１ｂと電極面３１ｃとが互いに谷折り状のＶ字型を成している一方、第２電極部材２０−２の電極面３１ｅと電極面３１ｆとが互いに山折り状のＶ字型を成している。したがって、同図に示す電極部材２０によって形成される端子１は、左右の側面間の形状が略Ｖ字形状に形成されている。 On the other hand, in the electrode member 20 shown in FIG. 5B, the electrode surface 31b and the electrode surface 31c of the first electrode member 20-1 form a V-shape that is valley-folded with each other. The electrode surface 31e and the electrode surface 31f of 20-2 form a mountain-like V shape. Therefore, the terminal 1 formed by the electrode member 20 shown in the figure has a substantially V-shaped shape between the left and right side surfaces.

ここで、図４（ｂ）に示す電極部材２０は、図４（ａ）に示す電極部材２０において、第２電極部材２０−２に設置された右上電極チップ３０ｅと右下電極チップ３０ｆとをそれぞれの電極面３１ｅ，３１ｆの上下が反転するように上下の向きを変えて（１８０度回転させて）付け替えたものである。すなわち、本実施形態の電極部材２０では、電極チップ３０は、電極部材２０に対して取り外し可能に設置されており、かつ、電極面３１の端子具１０に対する位置及び角度を調整可能であるため、上記のような電極チップ３０の付け替えが可能である。したがって、同一の電極部材２０によって、形状の異なる複数種類の端子１を簡単に作ることができる。 Here, the electrode member 20 shown in FIG. 4B includes an upper right electrode tip 30e and a lower right electrode tip 30f installed in the second electrode member 20-2 in the electrode member 20 shown in FIG. 4A. The electrode surfaces 31e and 31f are changed by changing the vertical direction (rotated 180 degrees) so that the vertical direction is inverted. That is, in the electrode member 20 of the present embodiment, the electrode tip 30 is detachably installed with respect to the electrode member 20, and the position and angle of the electrode surface 31 with respect to the terminal tool 10 can be adjusted. The electrode tip 30 as described above can be replaced. Therefore, a plurality of types of terminals 1 having different shapes can be easily made by the same electrode member 20.

また、図４（ｃ）に示す端子１は、図４（ａ）に示す端子１と同じく左右の側面間が略菱型状に形成されているが、図４（ａ）とは、電極部材２０が備える各電極面３１の寸法及び配置が異なっている。すなわち、互いに隣り合う２個の電極面３１がなす角度がいずれも同じ角度になるように設定されている。また、対向する一対の電極面３１間の距離も互いに等しくなるように設定されている。これにより、端子１の断面形状が略正六角形状に形成されるようになっている。 Further, the terminal 1 shown in FIG. 4 (c) is formed in a substantially rhombus shape between the left and right side surfaces as in the case of the terminal 1 shown in FIG. 4 (a). The size and arrangement of each electrode surface 31 included in 20 are different. That is, the angle formed by the two electrode surfaces 31 adjacent to each other is set to be the same angle. The distance between the pair of opposing electrode surfaces 31 is also set to be equal to each other. Thereby, the cross-sectional shape of the terminal 1 is formed in a substantially regular hexagonal shape.

以上説明したように、本実施形態の端子１の製造方法に用いる電極部材２０は、端子具１０の筒状部１１を上下方向（第１の方向）から挟持する一対の電極面（第１電極面）３１ａ，３１ｄと、左右方向（第２の方向）から挟持する一対の電極面（第２電極面）３１ｂ及び３１ｃ，３１ｅ及び３１ｆとを備えている。これにより、かしめ工程において、電極部材２０で端子具１０を複数の方向（ここでは、第１の方向と第２の方向の二方向）から同時に挟持してかしめるようにしている。したがって、上記第１の方向（又は第２の方向）から挟持された端子具１０が第２の方向（又は第１の方向）に伸びる（変形する）ことを抑制できる。そのため、端子具１０に亀裂が生じることを防止でき、端子具１０からの導線Ｌの飛び出しを防止できる。また、第１の方向と第２の方向を含む複数の方向から端子具１０を同時に挟持するようにしたことで、端子具１０内の各方向に対して導線Ｌを確実に押圧することができ、端子具１０及び導線Ｌを効果的に密着させることができる。また、電極面３１を複数方向に設けたことで、電極面３１と端子具１０との接触面の角度を分散させることができるので、端子具１０にかかる圧力を均一化できる。したがって、端子具１０の外周を均等に押圧することができるので、端子１の耐振動性、及び曲げやねじれに対する強度を向上させることができる。
As described above, the electrode member 20 used in the method for manufacturing the terminal 1 of the present embodiment has a pair of electrode surfaces (first electrodes) that sandwich the cylindrical portion 11 of the terminal tool 10 from the vertical direction (first direction). Surface) 31a and 31d, and a pair of electrode surfaces (second electrode surfaces) 31b and 31c, 31e and 31f sandwiched from the left and right direction (second direction). Thereby, in the caulking step, the terminal member 10 is clamped by the electrode member 20 from a plurality of directions (here, two directions of the first direction and the second direction). Therefore, it is possible to suppress the terminal tool 10 sandwiched from the first direction (or the second direction) from extending (deforming) in the second direction (or the first direction). Therefore, it is possible to prevent the terminal tool 10 from being cracked and to prevent the lead L from jumping out from the terminal tool 10. In addition, since the terminal tool 10 is sandwiched simultaneously from a plurality of directions including the first direction and the second direction, the conductor L can be reliably pressed against each direction in the terminal tool 10. The terminal tool 10 and the conductive wire L can be effectively brought into close contact with each other. Moreover, since the angle of the contact surface of the electrode surface 31 and the terminal tool 10 can be disperse | distributed by providing the electrode surface 31 in multiple directions, the pressure concerning the terminal tool 10 can be equalize | homogenized. Therefore, since the outer periphery of the terminal tool 10 can be pressed uniformly, the vibration resistance of the terminal 1 and the strength against bending and twisting can be improved.

また、本実施形態の電極部材２０では、かしめ工程において、電極面３１によってかしめられた端子具１０の断面形状が六角形状に形成されるようにしている。このように構成したことで、端子具１０が一方向から挟持されて平型にかしめられた場合と比較して、端子１の耐振動性、及び曲げやねじれに対する強度を向上させることができる。特に、図４（ｃ）に示すように、端子具１０の断面形状が正六角形状に形成されるようにすれば、端子具１０を装着した導線束２及び各導線Ｌの断面形状が正六角形型（いわゆるハニカム構造）に収束するようになるので、端子具１０及び導線Ｌ間に隙間ができることを抑制でき、導線Ｌ間の熱伝導性の低下を抑制できる。また、端子具１０と導線Ｌを強固に密着させることができるので、端子１の耐振動性、耐久性を向上させることができる。
Moreover, in the electrode member 20 of this embodiment, the cross-sectional shape of the terminal tool 10 crimped by the electrode surface 31 is formed in a hexagonal shape in the caulking step. By comprising in this way, the vibration resistance of the terminal 1 and the intensity | strength with respect to a bending and a twist can be improved compared with the case where the terminal tool 10 is clamped from one direction and it crimped to the flat type. In particular, as shown in FIG. 4 (c), if the cross-sectional shape of the terminal tool 10 is formed in a regular hexagonal shape, the cross-sectional shapes of the conductor bundle 2 and the conductors L to which the terminal tool 10 is attached are regular hexagons. Since it converges on a mold (so-called honeycomb structure), it is possible to suppress the formation of a gap between the terminal 10 and the conductor L, and to suppress a decrease in thermal conductivity between the conductors L. Moreover, since the terminal tool 10 and the conducting wire L can be firmly adhered, the vibration resistance and durability of the terminal 1 can be improved.

また、本実施形態の端子１の製造方法に用いる電極部材２０には、それぞれに電極面３１を設けてなる小片状の電極チップ３０が取り付けられている。このように、小片状の電極チップ３０を設けたことで、端子具１０の押圧方向や角度を調節することが簡単に行えるようになる。また、端子具１０に対する電流の流し方を最適化できるので、端子１の加熱具合を均一化でき、端子具１０の導電性、耐久性を向上させることができる。また、電極面３１を小片状の電極チップ３０に設けたことで、電極部材２０に高価な材料を使用する量を減らすことができるため、端子１の製造コストを低減することができる。 In addition, small electrode chips 30 each having an electrode surface 31 are attached to the electrode member 20 used in the method for manufacturing the terminal 1 of the present embodiment. Thus, by providing the small piece-like electrode tip 30, the pressing direction and angle of the terminal tool 10 can be easily adjusted. Moreover, since the way of the electric current flow with respect to the terminal fixture 10 can be optimized, the heating condition of the terminal 1 can be equalized and the electroconductivity and durability of the terminal fixture 10 can be improved. In addition, since the electrode surface 31 is provided on the small electrode tip 30, the amount of expensive material used for the electrode member 20 can be reduced, so that the manufacturing cost of the terminal 1 can be reduced.

また、電極チップ３０は、電極部材２０に対して取り外し可能であり、かつ、その取付位置及び角度を調整することで、電極面３１の端子具１０に対する当接状態を調整可能である。このように、電極チップ３０を取り外し可能に設置したことで、電極面３１の交換や再研磨などのメンテナンスが簡単に行えるようになる。また、電極面３１の端子具１０に対する位置及び角度を調整可能であることで、同じ電極部材２０を用いながら、かしめ工程による端子具１０の加工形状を簡単に変更できるようになる。 Moreover, the electrode tip 30 is removable with respect to the electrode member 20, and the contact state with respect to the terminal tool 10 of the electrode surface 31 can be adjusted by adjusting the attachment position and angle. As described above, since the electrode tip 30 is detachably installed, maintenance such as replacement or re-polishing of the electrode surface 31 can be easily performed. Further, since the position and angle of the electrode surface 31 with respect to the terminal tool 10 can be adjusted, the processing shape of the terminal tool 10 by the caulking process can be easily changed while using the same electrode member 20.

〔第２実施形態〕
次に、本発明の第２実施形態について説明する。なお、第２実施形態の説明及び対応する図面においては、第１実施形態と同一又は相当する構成部分には同一の符号を付し、以下ではその部分の詳細な説明は省略する。また、以下で説明する事項以外の事項については、第１実施形態と同じである。これらの点は、他の実施形態についても同様である。 [Second Embodiment]
Next, a second embodiment of the present invention will be described. In the description of the second embodiment and the corresponding drawings, the same or corresponding components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted below. In addition, matters other than those described below are the same as those in the first embodiment. These points are the same for the other embodiments.

図５は、本発明の第２実施形態にかかる方法で製造される端子１−２を示す図であり、（ａ）は、電極部材２０で端子１−２をかしめる前の状態、（ｂ）は、電極部材２０で端子１−２をかしめた後の状態を示す図である。本実施形態の端子１−２は、第１実施形態の端子１が備える端子具１０とは形状が異なる他の端子具１０−２を備えている。すなわち、本実施形態の端子具１０−２は、略円筒状の本体部１６と、本体部１６内で複数の導線Ｌの隙間に設置されて該複数の導線Ｌを振り分ける薄板状のリブ１８とを一体に備えた形状になっている。 FIG. 5 is a view showing the terminal 1-2 manufactured by the method according to the second embodiment of the present invention, where (a) is a state before the terminal 1-2 is caulked with the electrode member 20, (b) ) Is a diagram showing a state after the terminal 1-2 is caulked with the electrode member 20. FIG. The terminal 1-2 of the present embodiment includes another terminal tool 10-2 having a different shape from the terminal tool 10 included in the terminal 1 of the first embodiment. That is, the terminal tool 10-2 of the present embodiment includes a substantially cylindrical main body 16 and thin plate-like ribs 18 that are installed in the gaps of the plurality of conductive wires L in the main body 16 and distribute the plurality of conductive wires L. It has a shape with a single unit.

リブ１８は、本体部１６内で導線束２の長手方向に沿って伸びる板状で、導線束２を構成する複数本の導線Ｌの隙間に配置される渦巻型の断面形状を有している。具体的には、本体部１６の内壁１６ａから突出して該内壁１６ａに沿って延伸する湾曲板状の第１外周片１８ａと、該第１外周片１８ａの先端から折り返されて本体部１６の内壁１６ａに沿って第１外周片１８ａと対称に延伸する第２外周片１８ｂと、第２外周片１８ｂの先端から折り返されて第１外周片１８ａと第２外周片１８ｂの間で本体部１６の中心を通って延伸する平板状の中央片１８ｃとを有している。これらによって、リブ１８は、本体部１６の内壁１６ａから中心側に向かって巻回された渦巻型の断面形状を有している。そして、かしめ工程で端子具１０−２がかしめられる際、図５（ｂ）に示すように、かしめられた本体部１６の形状（六角形状）に沿ってリブ１８が変形し、端子具１０−２内での導線Ｌの動きが規制されるようになっている。なお、本実施形態においても、図５（ｂ）に示すように、端子具１０−２をかしめて潰した状態で、第１電極部材２０−１と第２電極部材２０−２に通電することで、端子具１０−２内の導線Ｌの絶縁被覆を炭化（溶融）させて排除し、端子具１０−２と導線Ｌとを導電接合する。 The rib 18 is a plate-like shape that extends along the longitudinal direction of the conductor bundle 2 in the main body portion 16, and has a spiral cross-sectional shape that is disposed in the gaps between the plurality of conductors L constituting the conductor bundle 2. . Specifically, a curved plate-like first outer peripheral piece 18a that protrudes from the inner wall 16a of the main body 16 and extends along the inner wall 16a, and an inner wall of the main body 16 that is folded back from the tip of the first outer peripheral piece 18a. A second outer peripheral piece 18b extending symmetrically with the first outer peripheral piece 18a along 16a, and folded back from the tip of the second outer peripheral piece 18b and between the first outer peripheral piece 18a and the second outer peripheral piece 18b, And a flat central piece 18c extending through the center. Thus, the rib 18 has a spiral cross-sectional shape wound from the inner wall 16a of the main body 16 toward the center side. Then, when the terminal tool 10-2 is caulked in the caulking process, as shown in FIG. 5B, the rib 18 is deformed along the shape (hexagonal shape) of the caulked main body portion 16, and the terminal tool 10- The movement of the conducting wire L within 2 is regulated. In this embodiment as well, as shown in FIG. 5B, the first electrode member 20-1 and the second electrode member 20-2 are energized with the terminal tool 10-2 crimped and crushed. Then, the insulation coating of the conductor L in the terminal 10-2 is carbonized (melted) to be eliminated, and the terminal 10-2 and the conductor L are conductively joined.

本実施形態の製造方法で製造される端子１−２では、端子具１０−２にリブ１８を設けたことで、かしめ工程において、端子具１０−２内での導線Ｌの動きを規制できるとともに、導線Ｌ間に隙間ができるのを防ぐことができるので、導線Ｌ間の熱伝導性の低下を防止することができる。また、リブ１８によって、端子具１０−２内の各導線Ｌに均等に熱を与えることができるので、導線束２の内部の均一な導電性を確保できる。なお、本実施形態では、渦巻形状の断面を有するリブ１８を備えた場合を示したが、リブ１８の具体的な形状はこれに限定されず、平板状など他の形状であってもよい。また、本発明では、リブは、端子具の本体部に一体形成されていてもよいし、別部材として設けられていてもよい。 In the terminal 1-2 manufactured by the manufacturing method of the present embodiment, the rib 18 is provided on the terminal 10-2, so that the movement of the conductor L in the terminal 10-2 can be restricted in the caulking process. Since it is possible to prevent a gap from being formed between the conductors L, it is possible to prevent a decrease in thermal conductivity between the conductors L. Moreover, since heat can be uniformly given to each conducting wire L in the terminal fixture 10-2 by the rib 18, uniform conductivity inside the conducting wire bundle 2 can be ensured. In addition, although the case where the rib 18 which has a spiral cross section was provided was shown in this embodiment, the specific shape of the rib 18 is not limited to this, Other shapes, such as flat form, may be sufficient. Moreover, in this invention, the rib may be integrally formed in the main-body part of the terminal device, and may be provided as another member.

〔第３実施形態〕
図６は、本発明の第３実施形態にかかる電動機（モータ）５０の構成例を示す図で、（ａ）は、電動機５０の全体構成を示す概略平面図であり、（ｂ）は、後述する固定子６１の斜視図である。同図に示す電動機５０は、３相（Ｕ相、Ｖ相、Ｗ相）のコイル５３（５３ｕ，５３ｖ，５３ｗ）を巻回してなる円筒状の固定子６１と、該固定子６１の中心側で回転する回転子６５とを備えたいわゆる分布巻き型の電動機である。固定子６１には、複数本のティース６３を有する固定子鉄心６２が設けられており、スロットを絶縁するための絶縁フィルム６４を介してティース６３に３相のコイル（巻線）５３が巻回されている。なお、コイル５３の端部は、引出線５２（５２ｕ，５２ｖ，５２ｗ）になっている。一方、回転子６５は、４極の永久磁石型であり、回転子鉄心６６に複数の永久磁石６７を埋設してなり、各永久磁石６７は、Ｎ極とＳ極が交互に並ぶように着磁されている。回転子６５は、中心に設けた軸孔６８にシャフト（図示せず）が貫通しており、当該シャフトが回転自在に支持されている。これにより、固定子６１に発生する回転磁界によって回転子６５が回転するようになっている。なお、図９（ａ）に示す回転子６５は、一部の構成部品を省略して簡略的に示している。 [Third Embodiment]
FIG. 6 is a diagram illustrating a configuration example of an electric motor (motor) 50 according to the third embodiment of the present invention, in which (a) is a schematic plan view illustrating an entire configuration of the electric motor 50, and (b) is described later. It is a perspective view of the stator 61 to do. The electric motor 50 shown in the figure includes a cylindrical stator 61 formed by winding three-phase (U-phase, V-phase, W-phase) coils 53 (53u, 53v, 53w), and the center side of the stator 61. This is a so-called distributed winding type electric motor provided with a rotor 65 that rotates at the same time. The stator 61 is provided with a stator core 62 having a plurality of teeth 63, and a three-phase coil (winding) 53 is wound around the teeth 63 via an insulating film 64 for insulating the slots. Has been. In addition, the edge part of the coil 53 is the lead wire 52 (52u, 52v, 52w). On the other hand, the rotor 65 is a 4-pole permanent magnet type, and a plurality of permanent magnets 67 are embedded in the rotor core 66, and each permanent magnet 67 is attached so that N poles and S poles are alternately arranged. It is magnetized. In the rotor 65, a shaft (not shown) passes through a shaft hole 68 provided in the center, and the shaft is rotatably supported. Thereby, the rotor 65 is rotated by the rotating magnetic field generated in the stator 61. In addition, the rotor 65 shown to Fig.9 (a) has simplified and abbreviate | omitted one part component.

そして、この電動機５０は、本発明の実施形態にかかる製造方法で製造された端子１を備えている。すなわち、電動機５０のコイル５３（５３ｕ，５３ｖ，５３ｗ）は、図７に示す絶縁被覆を有する導線Ｌを複数本束ねてなる導線束２からなる。そして、３相の各コイル５３ｕ，５３ｖ，５３ｗの一端に設けた中性点端子５５は、図７などに示す筒状の端子具１０を備えた端子１である。すなわち、本実施形態の電動機５０では、収容部１２を有する筒状の本体部１１と、収容部１２内に設置された板状のリブ１５とを備えた端子具１０によって、コイル５２の一端に設けた各相の中性点端子５５が連結されている。また、各相のコイル５２の他端（入力側）に設けた引出線５１は、図３に示す絶縁被覆を有する導線Ｌを複数本束ねてなる導線束２からなり、当該引出線５２の先端に設けた端子５１が、図７などに示す端子具１０によってかしめられた端子１になっている。当該端子５１は、電動機５０に電源を供給するための図示しない電源供給部などに接続されるようになっている。 And this electric motor 50 is provided with the terminal 1 manufactured with the manufacturing method concerning embodiment of this invention. That is, the coil 53 (53u, 53v, 53w) of the electric motor 50 includes the conductor bundle 2 formed by bundling a plurality of conductors L having an insulating coating shown in FIG. A neutral point terminal 55 provided at one end of each of the three-phase coils 53u, 53v, and 53w is a terminal 1 including the cylindrical terminal tool 10 shown in FIG. That is, in the electric motor 50 of the present embodiment, the coil 52 is connected to one end of the coil 52 by the terminal device 10 including the cylindrical main body portion 11 having the accommodating portion 12 and the plate-like ribs 15 installed in the accommodating portion 12. A neutral point terminal 55 of each phase provided is connected. Further, the lead wire 51 provided at the other end (input side) of the coil 52 of each phase is composed of the lead wire bundle 2 formed by bundling a plurality of the lead wires L having the insulation coating shown in FIG. The terminal 51 provided on the terminal 1 is the terminal 1 caulked by the terminal tool 10 shown in FIG. The terminal 51 is connected to a power supply unit (not shown) for supplying power to the electric motor 50.

以上説明したように、本実施形態の電動機５０によれば、コイル５３の端部に設けた端子５５及び引出線５２の端部に設けた端子５１として、本発明にかかる製造方法で製造された端子１を採用している。これにより、端子５１，５５の導電性能や耐久性を向上させることができる。したがって、信頼性の高い電動機５０となる。 As described above, according to the electric motor 50 of the present embodiment, the terminal 55 provided at the end of the coil 53 and the terminal 51 provided at the end of the lead wire 52 are manufactured by the manufacturing method according to the present invention. Terminal 1 is adopted. Thereby, the conductive performance and durability of the terminals 51 and 55 can be improved. Therefore, the electric motor 50 with high reliability is obtained.

以上本発明の実施形態を説明したが、本発明は上記実施形態に限定されるものではなく、特許請求の範囲、及び明細書と図面に記載された技術的思想の範囲内において種々の変形が可能である。なお、直接明細書及び図面に記載のない何れの形状・構造・材質であっても、本願発明の作用・効果を奏する以上、本願発明の技術的思想の範囲内である。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. It should be noted that any shape, structure, and material not directly described in the specification and drawings are within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are exhibited.

例えば、本発明にかかる端子が備える導線束は、ハイブリッド車両などに搭載する比較的大型のモータのコイルとして用いる導線束など、数十本以上の導線を束ねた導線束が好適であるが、本発明にかかる端子が備える導線束は、絶縁被覆を有する導線を複数本束ねたものであれば、具体的な導線の本数や太さは、特に限定されない。 For example, the wire bundle provided in the terminal according to the present invention is preferably a wire bundle in which several tens or more wires are bundled, such as a wire bundle used as a coil of a relatively large motor mounted on a hybrid vehicle or the like. The number of conductor wires and the thickness of the conductor bundle provided in the terminal according to the invention are not particularly limited as long as a plurality of conductor wires having an insulating coating are bundled.

また、上記の各実施形態に示す端子具１０（１０−２）の具体的な形状は一例であり、端子具１０は、上記に示すもの以外の形状とすることも可能である。また、端子具１０−２が備えるリブ１８の具体的な形状も、上記実施形態に示すものには限定されず、他の形状とすることが可能である。 Moreover, the specific shape of the terminal tool 10 (10-2) shown in each of the above embodiments is merely an example, and the terminal tool 10 may have a shape other than that shown above. Moreover, the specific shape of the rib 18 with which the terminal fixture 10-2 is provided is not limited to what is shown in the said embodiment, It can be set as another shape.

１，１−２端子
２導線束
１０，１０−２端子具
１１筒状部
１６本体部
１６ａ内壁
１８リブ
２０（２０−１，２０−２）電極部材
２１本体部
２４カバー
２５電極ホルダー
２６支持部材
２７，２８収容部
３０電極チップ
３０ａ中央上電極チップ
３０ｂ左上電極チップ
３０ｃ左下電極チップ
３０ｄ中央下電極チップ
３０ｅ右上電極チップ
３０ｆ右下電極チップ
３１（３１ａ〜３１ｆ）電極面
３３，３４位置調整具
３５位置調整用ネジ
５０電動機 DESCRIPTION OF SYMBOLS 1,1-2 Terminal 2 Conductor bundle 10, 10-2 Terminal tool 11 Cylindrical part 16 Main part 16a Inner wall 18 Rib 20 (20-1, 20-2) Electrode member 21 Main part 24 Cover 25 Electrode holder 26 Support member 27, 28 Housing 30 Electrode chip 30a Upper center electrode chip 30b Upper left electrode chip 30c Lower left electrode chip 30d Lower center electrode chip 30e Upper right electrode chip 30f Lower right electrode chip 31 (31a to 31f) Electrode surfaces 33, 34 Position adjuster 35 Position adjusting screw 50

Claims

A method of manufacturing a terminal formed by conductively bonding a terminal tool to a bundle of conductors obtained by bundling a plurality of conductors having an insulation coating,
A caulking step of clamping and pressing the terminal tool mounted on the outer periphery of the wire bundle with an electrode member;
Energizing the terminal tool through the electrode member to carbonize or melt the insulating coating of the conductive wire, and conductively bonding the terminal tool and the conductive wire bundle,
The electrode member is
A pair of first electrode surfaces sandwiching the terminal from both sides in the first direction, and a pair of second electrode surfaces sandwiching from both sides in a second direction different from the first direction,
The pair of second electrode surfaces have two planar electrode surfaces with different contact angles with respect to the terminal device on one side and the other side in the second direction,
In the caulking step, the electrode member is caulked by simultaneously clamping the terminal tool from a plurality of directions including the first direction and the second direction ,
The method of manufacturing a terminal, wherein a cross-sectional shape of the terminal tool caulked by a plurality of electrode surfaces including the first electrode surface and the second electrode surface is formed in a hexagonal shape .

Wherein the electrode member, the manufacturing method of the terminal according to claim 1, characterized in that the strip-like electrode tip comprising each provided with the electrode surface is attached.

The electrode tip is removable with respect to the electrode member, and a contact state of the electrode surface with the terminal device can be adjusted by adjusting an attachment position and an angle thereof. The manufacturing method of the terminal of Claim 2 .

The terminal device is a hollow body portion and said main body portion and formed integrally with the plurality of to partition wires installed plate-like ribs on their gap within the body portion for accommodating the wire bundle And
Wherein when the main body portion of the terminal fitting is crimped by the crimping process, the terminal according to any one of claims 1 to 3 by the ribs position of the conductors of the body portion, characterized in that it has to be regulated Manufacturing method.

The rib has a spiral cross section.
The method of manufacturing a terminal according to claim 4.

The second direction is a direction orthogonal to the first direction.
The method for manufacturing a terminal according to claim 1, wherein:

A coil formed by bundling a plurality of conductive wires having an insulation coating;
A terminal formed by connecting a terminal device attached to the coil in a state in which electrical continuity is ensured by a fusing process, and an electric motor comprising:
The terminal includes an electric motor, which is a terminal which is produced by the method according to any one of claims 1 to 6.