JP6267996B2 - Manufacturing method of waterproof connector and manufacturing method of electric wire with terminal - Google Patents

Manufacturing method of waterproof connector and manufacturing method of electric wire with terminal Download PDF

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JP6267996B2
JP6267996B2 JP2014037145A JP2014037145A JP6267996B2 JP 6267996 B2 JP6267996 B2 JP 6267996B2 JP 2014037145 A JP2014037145 A JP 2014037145A JP 2014037145 A JP2014037145 A JP 2014037145A JP 6267996 B2 JP6267996 B2 JP 6267996B2
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electric wire
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waterproof
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conductor
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大亮 宮川
大亮 宮川
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Yazaki Corp
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Description

本発明は、防水コネクタの止水構造及び端子付電線に関する。   The present invention relates to a waterproof structure for a waterproof connector and a terminal-attached electric wire.

従来、防水コネクタを止水する際、嵌合長を短縮するため、電線の端末にモールド樹脂の一体モールドを行っているものがある。(特許文献1等参照)。
図5に示すように、この種の防水コネクタ501の止水構造は、電線503の端末の被覆505が剥かれて、導体が露出される。電線503の導体には、端子507の導体接続部509が圧着等によって接続される。端子507は、更に電線加締め部511が電線503の被覆505の外周側に加締め付けられることで、電線503の端に取り付けられる。
Conventionally, in order to shorten the fitting length when water-proofing a waterproof connector, there is one in which a mold resin is integrally molded at the end of an electric wire. (Refer to patent document 1 etc.).
As shown in FIG. 5, in the waterproof structure of this type of waterproof connector 501, the coating 505 at the end of the electric wire 503 is peeled off and the conductor is exposed. The conductor connection portion 509 of the terminal 507 is connected to the conductor of the electric wire 503 by crimping or the like. The terminal 507 is attached to the end of the electric wire 503 by further crimping the electric wire crimping portion 511 to the outer peripheral side of the coating 505 of the electric wire 503.

この端子507は、ハウジング513の電線導出穴515から挿入されることで、ハウジング513の端子収容室517に装着される。端子507には、接続相手の端子と電気的に接続されるバネ部519が形成される。バネ部519の後方には、導体接続部509が形成され、更にその後方には、電線加締め部511が形成されている。また、ハウジング513には、相手コネクタを結合状態でロックするロック部521が設けられている。更に、ハウジング513には、フード部523の内側に筒状嵌合部525が形成される。筒状嵌合部525の奥側の外周には、相手コネクタとの間を水密にシールするパッキン527が装着される。   The terminal 507 is attached to the terminal accommodating chamber 517 of the housing 513 by being inserted from the electric wire outlet hole 515 of the housing 513. The terminal 507 is formed with a spring portion 519 that is electrically connected to a connection partner terminal. A conductor connecting portion 509 is formed behind the spring portion 519, and an electric wire crimping portion 511 is further formed behind the conductor connecting portion 509. The housing 513 is provided with a lock portion 521 that locks the mating connector in a coupled state. Further, the housing 513 is formed with a cylindrical fitting portion 525 inside the hood portion 523. A packing 527 that seals water tightly with the mating connector is attached to the outer periphery on the back side of the cylindrical fitting portion 525.

端子収容室517に装着された端子507は、ハウジング513に形成されるランス529によって端子収容室517からの脱落が規制される。端子507が端子収容室517に装着された電線503は、電線導出穴515からハウジング513の外部531へ導出される。ここで、電線導出穴515に挿通されている電線503の外周部分には、シールド部(防水部)533が成形されている。シールド部533は、一体モールド成形によって導体接続部509から被覆505に亘る外周部分に成形される。一体モールド成形では、使用する端子サイズ、電線サイズに合わせた成形金型が使用されて、シールド部533が端子507及び電線503の外周部分に成形される。   The terminal 507 attached to the terminal accommodating chamber 517 is prevented from dropping from the terminal accommodating chamber 517 by a lance 529 formed in the housing 513. The electric wire 503 in which the terminal 507 is mounted in the terminal accommodating chamber 517 is led out from the electric wire outlet hole 515 to the outside 531 of the housing 513. Here, a shield portion (waterproof portion) 533 is formed on the outer peripheral portion of the electric wire 503 inserted through the electric wire outlet hole 515. The shield part 533 is formed in an outer peripheral part extending from the conductor connection part 509 to the covering 505 by integral molding. In the integral molding, a molding die that matches the terminal size to be used and the electric wire size is used, and the shield part 533 is formed on the outer peripheral portions of the terminal 507 and the electric wire 503.

シールド部533は、電線導出穴515の内径より若干大きく成形され、挿入時に圧縮される。圧縮されたシールド部533は、その弾性反発力によって電線503と電線導出穴515とに押しつけられる。これにより、防水コネクタ501の止水構造では、電線503と電線導出穴515との間が水密にシールされる。   The shield part 533 is formed to be slightly larger than the inner diameter of the electric wire outlet hole 515 and is compressed when inserted. The compressed shield part 533 is pressed against the electric wire 503 and the electric wire outlet hole 515 by its elastic repulsive force. Thereby, in the water stop structure of the waterproof connector 501, between the electric wire 503 and the electric wire outlet hole 515 is sealed watertight.

特開2013−16348号公報JP 2013-16348 A

しかしながら、従来の防水コネクタ501の止水構造は、防水部であるシールド部533が一体モールド成形される際、モールド樹脂が端子507のバネ部519側へ漏れ出す可能性がある。そして、漏れたモールド樹脂がバネ部519に付着すると、接続相手の端子(オス端子)との接触に影響が生じる。その結果、端子間で接触不良を起こす可能性がある。また、上述のような一体モールド成形では、使用する端子サイズ、電線サイズに合わせて、それぞれに対応したモールド形状の防水部を成形する成形金型が必要になるため、成形金型が多品種化してしまう。その結果、金型コストが増大するという問題がある。   However, in the conventional waterproof structure of the waterproof connector 501, when the shield part 533 that is a waterproof part is integrally molded, there is a possibility that the mold resin leaks to the spring part 519 side of the terminal 507. If the leaked mold resin adheres to the spring portion 519, the contact with the terminal (male terminal) of the connection partner is affected. As a result, contact failure may occur between terminals. In addition, in the above-described integral molding, a molding die for molding a waterproof part having a mold shape corresponding to the terminal size and electric wire size to be used is required. End up. As a result, there is a problem that the mold cost increases.

本発明は上記状況に鑑みてなされたもので、その目的は、防水部をモールド成形する成形金型を削減でき、端子間の接触信頼性を確保できる防水コネクタの製造方法及び端子付電線の製造方法を提供することにある。 The present invention has been made in view of the above circumstances, and an object can reduce the molding die for molding a waterproof portion, fabrication of the waterproof connector manufacturing method and the wire with terminals of the contact reliability can be secured between the terminals It is to provide a method .

本発明に係る上記目的は、下記構成により達成される。
(1) 導体の周囲が絶縁性の被覆によって覆われる電線と、相手端子と電気的に接触する電気接触部と前記電線の端末の導体と電気的に接続される電線接続部とが形成される端子と、前記電線の端末に取り付けられた前記端子が端子収容室に収容されて前記電線が電線導出穴から外部へ導出されるハウジングと、前記電線の端末の外周部分に成形され、前記電線と前記電線導出穴との間を水密にシールする防水部と、を備える防水コネクタの製造方法であって、前記防水部を立体造形によって成形することを特徴とする防水コネクタの製造方法
The above object of the present invention is achieved by the following configuration.
(1) An electric wire in which the periphery of the conductor is covered with an insulating coating, an electric contact portion that is in electrical contact with the mating terminal, and an electric wire connection portion that is electrically connected to the conductor at the end of the electric wire are formed. a terminal, a housing in which the electrical wire is accommodated the terminal attached to the end of a wire within the terminal receiving chamber is led to the outside from the wire draw-out hole, is formed form the outer peripheral portion of the terminal of the electric wire, the electric wire wherein a waterproof section for watertight sealing between the wire draw-out hole, a manufacturing method of a waterproof connector provided with a method of the waterproof connector, characterized in that shaping by stereolithography the waterproof portion and.

上記(1)の構成の防水コネクタの製造方法によれば、電線の端末に端子を電気的に接続した後、該電線の端末の外周部分に、立体造形機を使用して防水部が立体造形により成形される。この際、防水部が立体造形によって成形材料が積層されて形成されていくので、端子の電気接触部に成形材料が流れることがない。これにより、電気接触部の接続信頼性が低下することがない。
また、従来の一体モールド成形では、電線サイズ、端子サイズごとに、モールド部の成形形状を変えて成形する成形金型が必要となる。これに対し、上記構成の防水コネクタの製造方法では、立体造形機を使用する立体造形によって防水部が成形されるので、防水部をモールド成形する成形金型が必要なくなる。その結果、立体造形機があれば、どの電線サイズ、端子サイズにも対応することが可能となる。すなわち、端子、電線の種類に関わらず、それぞれの形状にあった防水部を備えた防水コネクタの製造方法を得ることができる。
According to the method for manufacturing a waterproof connector having the above configuration (1), after the terminal is electrically connected to the end of the electric wire, the waterproof portion is three-dimensionally formed on the outer peripheral portion of the end of the electric wire using a three-dimensional modeling machine. Is formed by. At this time, since the waterproof portion is formed by stacking the molding material by three-dimensional modeling, the molding material does not flow to the electrical contact portion of the terminal. Thereby, the connection reliability of an electrical contact part does not fall.
In addition, in the conventional integral molding, a molding die for molding by changing the molding shape of the mold portion is required for each electric wire size and terminal size. On the other hand, in the waterproof connector manufacturing method having the above configuration, the waterproof part is formed by three-dimensional modeling using a three-dimensional modeling machine, so that a molding die for molding the waterproof part is not necessary. As a result, any wire size and terminal size can be accommodated with a 3D modeling machine. That is, it is possible to obtain a method for manufacturing a waterproof connector provided with a waterproof portion in accordance with each shape regardless of the types of terminals and electric wires.

(2) 上記(1)の構成の防水コネクタの製造方法であって、前記防水部が、前記電線接続部における前記導体の周囲に空隙を有して成形されることを特徴とする防水コネクタの製造方法(2) A method for manufacturing a waterproof connector having the configuration of (1) above, wherein the waterproof part is formed with a gap around the conductor in the electric wire connecting part. Manufacturing method .

上記(2)の構成の防水コネクタの製造方法によれば、防水部には、電線接続部における導体の周囲に、空隙が形成される。即ち、立体造形機によって防水部を成形することで、従来の一体モールド成形では確保することが困難な空隙を容易に確保できる。電線接続部における導体の周囲に空隙が空けられることにより、電線の端末の被覆が剥かれて露出された導体(芯線)の隙間に、立体造形時に成形材料が染み込むことを防ぐことが可能となる。この成形材料の染み込み量は、芯線の密度具合で変化し、管理が難しい。立体造形時に成形材料の染み込み量が変化すると、成形された防水部に変形を生じる可能性があるが、本製造方法のように空隙を空ければ、立体造形時にこの染み込み量を想定する必要がないため、防水部の変形が防止される。そこで、良好な形状に成形された防水部は、確実な防水が可能となる。そこで、良好な形状に成形された防水部を備えてシール性能が高い防水コネクタの製造方法を得ることができる。 According to the method for manufacturing a waterproof connector having the configuration (2), a gap is formed around the conductor in the wire connecting portion in the waterproof portion. That is, by forming the waterproof portion with a three-dimensional modeling machine, it is possible to easily secure a gap that is difficult to ensure by conventional integral molding. By forming a gap around the conductor in the wire connection part, it becomes possible to prevent the molding material from penetrating into the gap between the conductor (core wire) exposed by peeling off the coating of the end of the wire. . The amount of penetration of the molding material varies depending on the density of the core wire and is difficult to manage. If the amount of penetration of the molding material changes during three-dimensional modeling, the molded waterproof part may be deformed, but if there is a void as in this manufacturing method , it is necessary to assume this amount of penetration during three-dimensional modeling. Therefore, deformation of the waterproof part is prevented. Therefore, the waterproof part molded in a good shape can be reliably waterproofed. Therefore, it is possible to obtain a method for manufacturing a waterproof connector that has a waterproof portion formed in a good shape and has high sealing performance.

(3) 上記(1)又は(2)の構成の防水コネクタの製造方法であって、前記防水部は、前記被覆が剥かれて露出した前記導体に接続された導体接続部と、前記被覆の外周側に加締め付けられた電線加締め部とを有する前記電線接続部を少なくとも覆うように、前記電線の端末の外周部分に成形されることを特徴とする防水コネクタの製造方法(3) In the method for manufacturing a waterproof connector having the configuration according to (1) or (2), the waterproof part includes a conductor connecting part connected to the conductor exposed by peeling off the covering, and the covering A method for manufacturing a waterproof connector, comprising: forming an outer peripheral portion of an end of the electric wire so as to cover at least the electric wire connecting portion having an electric wire crimping portion crimped on an outer peripheral side.

上記(3)の構成の防水コネクタの製造方法によれば、防水部は、導体接続部と電線加締め部とを有する電線接続部を少なくとも覆うようにして電線の端末の外周部分に成形されることで、軸線方向に沿うシール長を確保している。そこで、上記構成の防水部と同じシール長を有する防水栓が挿通された電線の端末に端子を接続した従来の防水コネクタの止水構造における電線接続部の前端と防水栓の後端との距離に比べ、上記構成の防水コネクタの止水構造における電線接続部の前端と防水部の後端との距離は短くできる。従って、従来の防水コネクタの止水構造を備えた端子収容室及び電線導出穴の軸線方向長さよりも、上記構成の防水コネクタの止水構造を備えた端子収容室及び電線導出穴の軸線方向長さを短くすることができ、防水コネクタを小型化することができる。 According to the method for manufacturing a waterproof connector having the configuration (3), the waterproof part is formed on the outer peripheral part of the end of the electric wire so as to cover at least the electric wire connecting part having the conductor connecting part and the electric wire crimping part. Thus, the seal length along the axial direction is secured. Therefore, the distance between the front end of the wire connecting portion and the rear end of the waterproof plug in the waterproof structure of the conventional waterproof connector in which the terminal is connected to the end of the electric wire through which the waterproof plug having the same seal length as the waterproof portion having the above configuration is inserted. As compared with the above, the distance between the front end of the wire connecting portion and the rear end of the waterproof portion in the waterproof structure of the waterproof connector having the above-described configuration can be shortened. Therefore, the axial length of the terminal housing chamber and the wire outlet hole with the waterproof structure of the waterproof connector of the above configuration is longer than the axial length of the terminal housing chamber and the wire outlet hole with the waterproof structure of the conventional waterproof connector. Therefore, the waterproof connector can be reduced in size.

(4) 導体が絶縁性の被覆によって覆われる電線と、相手端子と電気的に接触する電気接触部と、前記導体に接続される電線接続部とが形成される端子と、前記電線の端末の外周部分に成形され、前記端子が収容されるハウジングの電線導出穴と前記電線との間を水密にシールするための防水部と、を備える端子付電線の製造方法であって、前記防水部を立体造形によって成形することを特徴とする端子付電線の製造方法(4) a terminal in which an electric wire in which a conductor is covered with an insulating coating, an electric contact portion in electrical contact with a mating terminal, an electric wire connection portion connected to the conductor, and an end of the electric wire is formed form the outer peripheral portion, and the waterproof section for watertight sealing between the wire draw-out hole of the housing and the electric wire in which the terminal is accommodated, a method for producing a terminal-equipped wire comprising, said waterproof portion method for producing a terminal-equipped wire, which comprises forming by stereolithography the.

上記(4)の構成の端子付電線の製造方法によれば、電線の端末に端子を電気的に接続した後、該電線の端末の外周部分に、立体造形機を使用して防水部が立体造形により成形される。この際、防水部が立体造形によって成形材料が積層されて形成されていくので、端子の電気接触部に成形材料が流れることがない。これにより、電気接触部の接続信頼性が低下することがない。
また、従来の一体モールド成形では、電線サイズ、端子サイズごとに、モールド部の成形形状を変えて成形する成形金型が必要となる。これに対し、上記構成の端子付電線の製造方法では、立体造形機を使用する立体造形によって防水部が成形されるので、防水部をモールド成形する成形金型が必要なくなる。その結果、立体造形機があれば、どの電線サイズ、端子サイズにも対応することが可能となる。すなわち、端子、電線の種類に関わらず、それぞれの形状にあった防水部を備えた端子付電線の製造方法を得ることができる
According to the manufacturing method of the electric wire with a terminal having the configuration of (4) above, after the terminal is electrically connected to the terminal of the electric wire, the waterproof part is three-dimensionally formed on the outer peripheral portion of the terminal of the electric wire using a three-dimensional modeling machine. Molded by modeling. At this time, since the waterproof portion is formed by stacking the molding material by three-dimensional modeling, the molding material does not flow to the electrical contact portion of the terminal. Thereby, the connection reliability of an electrical contact part does not fall.
In addition, in the conventional integral molding, a molding die for molding by changing the molding shape of the mold portion is required for each electric wire size and terminal size. On the other hand, in the manufacturing method of the terminal-attached electric wire having the above-described configuration, the waterproof part is formed by three-dimensional modeling using a three-dimensional modeling machine, so that a molding die for molding the waterproof part is not necessary. As a result, any wire size and terminal size can be accommodated with a 3D modeling machine. In other words, regardless of the type of terminal and electric wire, a method for producing a terminal-attached electric wire having a waterproof part suitable for each shape can be obtained.

(5) 上記(4)の構成の端子付電線の製造方法であって、前記防水部が、前記電線接続部における前記導体の周囲に空隙を有することを特徴とする端子付電線の製造方法(5) In the method of configuration terminal-equipped wire of the above (4), the waterproof portion, the manufacturing method of the terminal-equipped wire characterized by having a gap around the conductor in the wire connecting portion.

上記(5)の構成の端子付電線の製造方法によれば、防水部は、電線接続部における導体の周囲に、空隙を有する。電線接続部における導体の周囲に空隙が空けられることにより、電線の端末の被覆が剥かれて露出された導体(芯線)の隙間に、立体造形時に成形材料が染み込むことを防ぐことが可能となる。立体造形時に成形材料の染み込み量が変化すると、成形された防水部に変形を生じる可能性があるが、本構造のように空隙を空ければ、立体造形時にこの染み込み量を想定する必要がないため、防水部の変形が防止される。そこで、良好な形状に成形された防水部を備えてシール性能が高い端子付電線の製造方法を得ることができる。 According to the manufacturing method of the electric wire with a terminal having the configuration (5), the waterproof part has a gap around the conductor in the electric wire connecting part. By forming a gap around the conductor in the wire connection part, it becomes possible to prevent the molding material from penetrating into the gap between the conductor (core wire) exposed by peeling off the coating of the end of the wire. . If the amount of penetration of the molding material changes during three-dimensional modeling, there is a possibility that the molded waterproof part will be deformed. However, if there is a gap as in this structure, there is no need to assume this amount of penetration during three-dimensional modeling. Therefore, deformation of the waterproof part is prevented. Then, the manufacturing method of the electric wire with a terminal provided with the waterproof part shape | molded by the favorable shape and having high sealing performance can be obtained.

本発明に係る防水コネクタの製造方法及び端子付電線の製造方法によれば、防水部をモールド成形する成形金型を削減でき、端子間の接触信頼性を確保できる。 According to the method for manufacturing a waterproof connector and the method for manufacturing a terminal-attached electric wire according to the present invention, the number of molding dies for molding the waterproof portion can be reduced, and the contact reliability between the terminals can be ensured.

以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態(以下、「実施形態」という。)を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるであろう。   The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

本発明の一実施形態に係る防水コネクタの止水構造を示す縦断面図である。It is a longitudinal cross-sectional view which shows the water stop structure of the waterproof connector which concerns on one Embodiment of this invention. 電線の端末の外周部分に立体造形によって成形された防水部を有する本発明の一実施形態に係る端子付電線を示す斜視図である。It is a perspective view which shows the electric wire with a terminal which concerns on one Embodiment of this invention which has the waterproof part shape | molded by the three-dimensional modeling in the outer peripheral part of the terminal of an electric wire. (a)は図1に示した端子の側面図、(b)は端子が取り付けられた電線の端末の側面図、(c)は防水部の成形途中を表した端子付電線の端末の側面図である。(A) is a side view of the terminal shown in FIG. 1, (b) is a side view of the terminal of the electric wire to which the terminal is attached, and (c) is a side view of the terminal of the electric wire with terminal showing the middle of the waterproof part. It is. 防水部が立体造形された端子付電線の端末の断面図である。It is sectional drawing of the terminal of the electric wire with a terminal by which the waterproof part was three-dimensionally modeled. (a)は従来の防水コネクタの一部分を切り欠いた斜視図、(b)は(a)の側面図である。(A) is the perspective view which notched a part of conventional waterproof connector, (b) is a side view of (a).

以下、本発明に係る実施形態を図面を参照して説明する。
図1及び図2に示すように、本発明の一実施形態に係る防水コネクタ11の止水構造及び端子付電線12は、電線17と、端子13と、ハウジング19と、防水部15と、を有する。
電線17は、導体21の周囲が絶縁性の被覆23によって覆われた被覆電線である。本実施形態に係る防水コネクタ11の止水構造及び端子付電線12では、導体の周囲が絶縁性の被覆によって覆われる電線として、フラットケーブル(Flat Cable:FC)、フレキシブルフラットケーブル(Flexible Flat Cable:FFC)、フレキシブルプリント配線板(Flexible Printed Circuit:FPC)等が用いられてもよい。
本実施形態の電線17は、導体21が、複数の素線を撚り合わせてなる。なお、導体21は、単線であってもよい。導体21としては、銅、アルミニウム等が用いられる。被覆23には、絶縁性の合成樹脂が用いられる。合成樹脂としては、例えばポリ塩化ビニル(PVC)、ポリオレフィン、ポリアミド等をベースに難燃剤を添加した樹脂を用いることができる。なお、難燃剤には、一般的にハロゲン系、リン系、水酸化マグネシウム、水酸化アルミニウム等が用いられる。
Embodiments according to the present invention will be described below with reference to the drawings.
As shown in FIG.1 and FIG.2, the water stop structure of the waterproof connector 11 which concerns on one Embodiment of this invention, and the electric wire 12 with a terminal are the electric wire 17, the terminal 13, the housing 19, and the waterproof part 15. Have.
The electric wire 17 is a covered electric wire in which the periphery of the conductor 21 is covered with an insulating coating 23. In the water stop structure of the waterproof connector 11 and the terminal-attached electric wire 12 according to the present embodiment, a flat cable (Flat Cable: FC) or a flexible flat cable (Flexible Flat Cable) is used as an electric wire whose conductor is covered with an insulating coating. FFC), a flexible printed circuit (FPC), or the like may be used.
In the electric wire 17 of the present embodiment, the conductor 21 is formed by twisting a plurality of strands. The conductor 21 may be a single wire. As the conductor 21, copper, aluminum, or the like is used. For the covering 23, an insulating synthetic resin is used. As the synthetic resin, for example, a resin in which a flame retardant is added based on polyvinyl chloride (PVC), polyolefin, polyamide, or the like can be used. In general, halogen-based, phosphorus-based, magnesium hydroxide, aluminum hydroxide, or the like is used as the flame retardant.

端子13は、1枚の導電性の金属板からの打ち抜き加工及び折り曲げ加工により形成できる。端子13は、例えばハウジング19に装着されて使用される。端子13は、先端側から、電気接触部25と電線接続部30とが連設される。   The terminal 13 can be formed by punching and bending from a single conductive metal plate. The terminal 13 is used by being mounted on a housing 19, for example. As for the terminal 13, the electric contact part 25 and the electric wire connection part 30 are provided in a row from the front end side.

電気接触部25は、相手端子と電気的に接触される。電気接触部25には、四角筒形状の箱部31が形成される。箱部31内には、バネ部33が形成されている。箱部31の後端面は、後述するランス45の係止面となる。箱部31は、相手端子である雄端子(図示略)のタブ状導体接続部を受け入れることで、バネ部33に雄端子を導通接続する。つまり、端子13は、雌端子である。   The electrical contact portion 25 is in electrical contact with the mating terminal. The electrical contact portion 25 is formed with a rectangular cylindrical box portion 31. A spring portion 33 is formed in the box portion 31. The rear end surface of the box portion 31 serves as a locking surface for a lance 45 described later. The box part 31 electrically connects the male terminal to the spring part 33 by receiving a tab-like conductor connection part of a male terminal (not shown) which is a counterpart terminal. That is, the terminal 13 is a female terminal.

電線接続部30は、導体接続部27と電線加締め部29とを有する。導体接続部27は、電線17の端末の被覆23が剥かれて露出された導体21に圧着接続されている。電線加締め部29は、電線17の被覆23の外周側に加締め付けられている。   The wire connection part 30 includes a conductor connection part 27 and a wire crimping part 29. The conductor connecting portion 27 is crimped and connected to the conductor 21 exposed by peeling off the coating 23 at the end of the electric wire 17. The electric wire crimping portion 29 is crimped to the outer peripheral side of the sheath 23 of the electric wire 17.

ハウジング19は、絶縁樹脂により一体成形されており、接続相手との嵌合側が前面35となり、前面35にはフード部37の嵌合開口部39が開口する。フード部37の内方には、接続相手と嵌合する嵌合筒部41が設けられている。嵌合筒部41の内方には、端子収容室43が形成される。端子収容室43には、ランス45が進退自在に突出して設けられる。端子収容室43は、前面35で開口するオス端子受入口47に連通している。また、端子収容室43は、後面49で開口する電線導出穴51と連通している。   The housing 19 is integrally formed of insulating resin, and the fitting side with the connection partner is the front surface 35, and the fitting opening 39 of the hood portion 37 is opened on the front surface 35. Inside the hood portion 37, a fitting cylinder portion 41 that fits with a connection partner is provided. A terminal accommodating chamber 43 is formed inside the fitting cylinder portion 41. A lance 45 is provided in the terminal accommodating chamber 43 so as to protrude and retract. The terminal accommodating chamber 43 communicates with a male terminal receiving port 47 that opens at the front surface 35. In addition, the terminal accommodating chamber 43 communicates with the electric wire outlet hole 51 that opens at the rear surface 49.

端子13は、電線17の端末に取り付けられた状態で、電線導出穴51に挿入され、端子収容室43に装着される。端子収容室43に装着された端子13は、ランス45が箱部31の後端面を係止することによって、端子収容室43からの脱落が規制される。端子13が端子収容室43に装着された電線17は、電線導出穴51からハウジング19の外部53へ導出される。ここで、電線導出穴51に挿通されている端子13の電線接続部30及び電線17の外周部分には、防水部15が立体造形により成形されている。即ち、防水部15は、被覆23が剥かれて露出した導体21に接続された導体接続部27と、被覆23の外周側に加締め付けられた電線加締め部29とを有する電線接続部30を少なくとも覆うように、電線17の端末の外周部分に成形されている。立体造形された防水部15は、電線17に一体に固着する。電線17の外周に立体造形によって成形された防水部15は、電線17と電線導出穴51との間を水密にシールする。   The terminal 13 is inserted into the wire lead-out hole 51 in a state of being attached to the terminal of the electric wire 17 and is attached to the terminal accommodating chamber 43. The terminal 13 mounted in the terminal accommodating chamber 43 is prevented from dropping from the terminal accommodating chamber 43 by the lance 45 locking the rear end surface of the box portion 31. The electric wire 17 in which the terminal 13 is mounted in the terminal accommodating chamber 43 is led out from the electric wire outlet hole 51 to the outside 53 of the housing 19. Here, the waterproof portion 15 is formed by three-dimensional modeling on the outer periphery of the electric wire connecting portion 30 of the terminal 13 and the electric wire 17 inserted through the electric wire outlet hole 51. That is, the waterproof part 15 includes a wire connecting part 30 having a conductor connecting part 27 connected to the conductor 21 exposed by peeling off the covering 23 and a wire crimping part 29 crimped to the outer peripheral side of the covering 23. The outer peripheral portion of the end of the electric wire 17 is molded so as to cover at least. The three-dimensional waterproof part 15 is integrally fixed to the electric wire 17. The waterproof part 15 formed by three-dimensional modeling on the outer periphery of the electric wire 17 seals between the electric wire 17 and the electric wire outlet hole 51 in a watertight manner.

ここで、立体造形としては、材料粉末にバインダを塗布し付着積層する粉末固着積層法や、金属・樹脂粉末をレーザー熱源により逐次溶融・焼結し、積層することで成形する粉末焼結積層造形法や、光造形法を始めとするその他の積層造形法等の種々の立体造形を用いることができる。   Here, as the three-dimensional modeling, a powder fixed lamination method in which a binder is applied to a material powder and adhered and laminated, or a powder sintered lamination molding in which metal / resin powder is sequentially melted and sintered by a laser heat source and laminated. Various three-dimensional modeling such as a method and other additive manufacturing methods such as stereolithography can be used.

例えば、粉末焼結積層造形法は、成形室において、レーザー熱源により、図3の(a)に示すように、樹脂粉末55を溶かしながら積層していく。成形室は、加熱用のIRヒーターが設けられる。粉末焼結積層造形法では、レーザー照射57により溶融した材料が既成層との融着直後に急激に冷却されると、層間に大きな内部応力が発生する。そこで、IRヒーターにより、成形環境温度を成形材料(樹脂粉末55)の融点近くまで上昇させておくことで、急激な冷却を抑制し、内部応力の発生を防止することができる。また、成形室は、燃焼や酸化を防止するために窒素雰囲気となる。   For example, in the powder sintering additive manufacturing method, as shown in FIG. 3A, the resin powder 55 is laminated while being melted by a laser heat source in a molding chamber. The molding chamber is provided with an IR heater for heating. In the powder sintering additive manufacturing method, when the material melted by the laser irradiation 57 is rapidly cooled immediately after fusion with the existing layer, a large internal stress is generated between the layers. Thus, by using an IR heater to raise the molding environment temperature to near the melting point of the molding material (resin powder 55), rapid cooling can be suppressed and the generation of internal stress can be prevented. Further, the molding chamber has a nitrogen atmosphere in order to prevent combustion and oxidation.

立体造形機のヘッド59に搭載されるレーザーとしてはCOレーザーやYAGレーザーが用いられる。この他、ヘッド59には、材料供給用ノズル61が設けられる。ヘッド59は、3DCADデータに基づき動作制御される。このヘッド59は、工作機械の主軸と同様、同時多軸制御される。また、粉末焼結積層造形法では、レーザー照射量や材料供給量等が、常に監視しながら制御されることで、造形面の形状に左右されない精密なピッチの樹脂層が生成可能となっている。 As a laser mounted on the head 59 of the three-dimensional modeling machine, a CO 2 laser or a YAG laser is used. In addition, the head 59 is provided with a material supply nozzle 61. The operation of the head 59 is controlled based on 3D CAD data. This head 59 is simultaneously controlled by multiple axes in the same manner as the main axis of the machine tool. Further, in the powder sintering additive manufacturing method, the laser irradiation amount, the material supply amount, and the like are controlled while being constantly monitored, so that a resin layer having a precise pitch that is not affected by the shape of the modeling surface can be generated. .

粉末焼結積層造形法では、例えば、チタン、ステンレス、ニッケル合金、インコネル(登録商標)、アルミニウム(Al)、銅(Cu)、錫(Sn)等の金属が使用できる。この他、エンジニアリング・プラスチック、セラミックス、砂等、用途に合わせた材料の選択が可能となる。本実施形態の防水コネクタ11の止水構造では、材料に熱可塑性ポリウレタン等の弾性材料を用いることで、弾性を有する防水部15の成形を可能としている。   In the powder sintering additive manufacturing method, for example, metals such as titanium, stainless steel, nickel alloy, Inconel (registered trademark), aluminum (Al), copper (Cu), and tin (Sn) can be used. In addition, materials such as engineering plastics, ceramics, and sand can be selected according to the application. In the waterproof structure of the waterproof connector 11 of this embodiment, the elastic waterproof part 15 can be formed by using an elastic material such as thermoplastic polyurethane as the material.

また、本実施形態に係る防水コネクタ11の止水構造及び端子付電線12では、図4に示すように、防水部15が、電線接続部30において露出した導体21の周囲に空隙63を有して成形される。空隙63は、防水部15の前方で開口している。   Moreover, in the water stop structure of the waterproof connector 11 and the terminal-attached electric wire 12 according to the present embodiment, as shown in FIG. 4, the waterproof part 15 has a gap 63 around the conductor 21 exposed in the electric wire connecting part 30. To be molded. The gap 63 is opened in front of the waterproof part 15.

次に、上記の構成を有する防水コネクタ11の止水構造及び端子付電線12の作用を説明する。
本実施形態に係る防水コネクタ11の止水構造及び端子付電線12では、電線17の端末の被覆23が剥かれて、電線17の端末には導体21が露出する。電線17の導体21には、端子13の導体接続部27が圧着等によって接続される。端子13は、更に電線加締め部29が電線17の被覆23の外周側に加締め付けられることで、電線17の端末に取り付けられる。
Next, the water stop structure of the waterproof connector 11 having the above configuration and the operation of the terminal-attached electric wire 12 will be described.
In the waterproof structure of the waterproof connector 11 and the terminal-attached electric wire 12 according to the present embodiment, the covering 23 of the end of the electric wire 17 is peeled off, and the conductor 21 is exposed at the end of the electric wire 17. The conductor connection portion 27 of the terminal 13 is connected to the conductor 21 of the electric wire 17 by crimping or the like. The terminal 13 is further attached to the end of the electric wire 17 by the electric wire crimping portion 29 being further crimped to the outer peripheral side of the covering 23 of the electric wire 17.

端子付電線12における端子13は、ハウジング19の電線導出穴51から挿入されることで、ハウジング19の端子収容室43に装着される。端子収容室43に装着された端子13は、ハウジング19に形成されたランス45によって端子収容室43からの脱落が規制される。端子13が端子収容室43に装着された電線17は、電線導出穴51からハウジング19の外部53へ導出される。   The terminal 13 in the terminal-attached electric wire 12 is inserted into the terminal accommodating chamber 43 of the housing 19 by being inserted from the electric wire outlet hole 51 of the housing 19. The terminal 13 mounted in the terminal accommodating chamber 43 is prevented from dropping from the terminal accommodating chamber 43 by a lance 45 formed in the housing 19. The electric wire 17 in which the terminal 13 is mounted in the terminal accommodating chamber 43 is led out from the electric wire outlet hole 51 to the outside 53 of the housing 19.

ここで、電線導出穴51に挿通されている電線17の端末の外周部分には、立体造形により防水部15が成形されている。防水部15は、電線17と電線導出穴51との間を水密にシールする。防水部15は、電線導出穴51の内径より若干大きく成形され、挿入時に圧縮される。圧縮された防水部15は、その弾性反発力によって電線17と電線導出穴51とに押しつけられる。   Here, a waterproof portion 15 is formed by three-dimensional modeling on the outer peripheral portion of the end of the electric wire 17 inserted through the electric wire outlet hole 51. The waterproof part 15 seals the space between the electric wire 17 and the electric wire outlet hole 51 in a watertight manner. The waterproof part 15 is formed slightly larger than the inner diameter of the electric wire outlet hole 51 and is compressed when inserted. The compressed waterproof part 15 is pressed against the electric wire 17 and the electric wire outlet hole 51 by its elastic repulsive force.

防水部15は、例えば、電線接続部30を覆う位置で電線17の外周部分に成形される。成形後の防水部15は、略円筒形状を有して外周方向に突出するリップ65が軸線に沿う方向に複数離間して設けられた所謂ゴム栓形状となる。また、防水部15は、電線17の外周に接する内周側にリップ65が形成されてもよい。   The waterproof part 15 is shape | molded by the outer peripheral part of the electric wire 17 in the position which covers the electric wire connection part 30, for example. The waterproof part 15 after molding has a so-called rubber plug shape in which a plurality of lips 65 having a substantially cylindrical shape and protruding in the outer peripheral direction are provided apart from each other in the direction along the axis. Further, the waterproof portion 15 may have a lip 65 formed on the inner peripheral side in contact with the outer periphery of the electric wire 17.

本実施形態の防水コネクタ11の止水構造及び端子付電線12では、電線17の端末に端子13を電気的に接続した後、該電線17の端末の外周部分に、立体造形機を使用して防水部15が立体造形により成形される。この際、防水部15が立体造形によって成形材料が積層されて形成されていくので、端子13の電気接触部25に成形材料が流れることがない。これにより、電気接触部25におけるバネ部33が守られ、電気接触部25の接続信頼性が低下することがない。従って、端子13と相手端子の端子間の接触信頼性を確保できる。   In the water stop structure of the waterproof connector 11 and the terminal-attached electric wire 12 of the present embodiment, after the terminal 13 is electrically connected to the end of the electric wire 17, a three-dimensional modeling machine is used for the outer peripheral portion of the end of the electric wire 17. The waterproof part 15 is formed by three-dimensional modeling. At this time, since the waterproof portion 15 is formed by stacking the molding material by three-dimensional modeling, the molding material does not flow to the electrical contact portion 25 of the terminal 13. Thereby, the spring part 33 in the electric contact part 25 is protected, and the connection reliability of the electric contact part 25 does not fall. Therefore, the contact reliability between the terminal 13 and the terminal of the mating terminal can be ensured.

また、従来の一体モールド成形では、電線サイズ、端子サイズごとに、モールド部の成形形状を変えて成形する成形金型が必要となっていた。これに対し、本実施形態の防水コネクタ11の止水構造及び端子付電線12では、立体造形機を使用する立体造形によって防水部15が成形されるので、防水部15をモールド成形する成形金型が必要なくなる。その結果、立体造形機があれば、どの電線サイズ、端子サイズにも対応することが可能となる。すなわち、端子13、電線17の種類に関わらず、それぞれの形状にあった防水部15を備えた防水コネクタの防水構造及び端子付電線を得ることができる。   Further, in the conventional integral molding, a molding die for molding by changing the molding shape of the mold part for each electric wire size and terminal size has been required. On the other hand, in the water stop structure of the waterproof connector 11 and the terminal-attached electric wire 12 of the present embodiment, the waterproof part 15 is formed by three-dimensional modeling using a three-dimensional modeling machine, and therefore a molding die for molding the waterproof part 15 Is no longer needed. As a result, any wire size and terminal size can be accommodated with a 3D modeling machine. That is, regardless of the types of the terminal 13 and the electric wire 17, it is possible to obtain a waterproof structure of a waterproof connector and a terminal-attached electric wire provided with the waterproof part 15 in each shape.

また、本実施形態の防水コネクタ11の止水構造及び端子付電線12では、防水部15には、電線接続部30における導体21の周囲に、空隙63が形成される。即ち、立体造形機によって防水部15を成形することで、従来の一体モールド成形では確保することが困難な空隙63を容易に確保できる。電線接続部30における導体21の周囲に空隙63が空けられることにより、電線17の端末の被覆が剥かれて露出された導体21(芯線)の隙間に、立体造形時に成形材料が染み込むことを防ぐことが可能となる。この成形材料の染み込み量は、芯線の密度具合で変化し、管理が難しい。立体造形時に成形材料の染み込み量が変化すると、成形された防水部15に変形を生じる可能性があるが、本実施形態のように空隙63を空ければ、立体造形時にこの染み込み量を想定する必要がないため、防水部15の変形が防止される。そこで、良好な形状に成形された防水部15は、確実な防水が可能となる。従って、良好な形状に成形された防水部15を備えてシール性能が高い端子付電線12及び防水コネクタ11の止水構造を得ることができる。   Further, in the waterproof structure of the waterproof connector 11 and the terminal-attached electric wire 12 of the present embodiment, a gap 63 is formed in the waterproof portion 15 around the conductor 21 in the electric wire connecting portion 30. That is, by forming the waterproof portion 15 with a three-dimensional modeling machine, it is possible to easily secure the gap 63 that is difficult to secure by conventional integral molding. The gap 63 is formed around the conductor 21 in the electric wire connection portion 30, thereby preventing the molding material from infiltrating into the gap of the conductor 21 (core wire) exposed by peeling off the coating of the end of the electric wire 17. It becomes possible. The amount of penetration of the molding material varies depending on the density of the core wire and is difficult to manage. If the amount of penetration of the molding material changes during three-dimensional modeling, the molded waterproof part 15 may be deformed. However, if the gap 63 is vacant as in this embodiment, this amount of penetration is assumed during three-dimensional modeling. Since it is not necessary, deformation of the waterproof part 15 is prevented. Therefore, the waterproof part 15 formed in a good shape can be reliably waterproofed. Therefore, it is possible to obtain a water stop structure for the terminal-attached electric wire 12 and the waterproof connector 11 that have the waterproof portion 15 formed in a good shape and have high sealing performance.

また、本実施形態の防水コネクタ11の止水構造及び端子付電線12では、図4に示すように、防水部15は、導体接続部27と電線加締め部29とを有する電線接続部30を少なくとも覆うようにして電線17の端末の外周部分に成形されることで、軸線方向に沿うシール長Lを確保している。そこで、上記構成の防水部15と同じシール長Lを有する防水栓70(図4に想像線で図示)が挿通された電線17の端末に端子13を接続した従来の防水コネクタの止水構造における電線接続部30の前端27aと防水栓70の後端70bとの距離S2に比べ、上記構成の防水コネクタ11の止水構造における電線接続部30の前端27aと防水部15の後端15bとの距離S1は短くできる。従って、図示しない従来の防水コネクタの止水構造を備えた端子収容室及び電線導出穴の軸線方向長さよりも、上記構成の防水コネクタ11の止水構造を備えた端子収容室43及び電線導出穴51の軸線方向長さを短くすることができ、防水コネクタ11を小型化することができる。   Moreover, in the water stop structure of the waterproof connector 11 and the terminal-attached electric wire 12 of the present embodiment, as shown in FIG. 4, the waterproof part 15 includes an electric wire connecting part 30 having a conductor connecting part 27 and an electric wire crimping part 29. The seal length L along the axial direction is ensured by forming at the outer peripheral portion of the end of the electric wire 17 so as to cover at least. Therefore, in the waterproof structure of the conventional waterproof connector in which the terminal 13 is connected to the end of the electric wire 17 through which the waterproof plug 70 (shown by an imaginary line in FIG. 4) having the same seal length L as the waterproof portion 15 having the above-described configuration is inserted. Compared to the distance S2 between the front end 27a of the wire connection portion 30 and the rear end 70b of the waterproof plug 70, the front end 27a of the wire connection portion 30 and the rear end 15b of the waterproof portion 15 in the waterproof structure of the waterproof connector 11 having the above-described configuration. The distance S1 can be shortened. Therefore, the terminal accommodating chamber 43 and the wire lead-out hole having the water-stopping structure of the waterproof connector 11 having the above-described configuration are longer than the length in the axial direction of the terminal accommodating chamber and the electric-wire leading hole having a water-stopping structure of a conventional waterproof connector (not shown). The axial direction length of 51 can be shortened, and the waterproof connector 11 can be reduced in size.

従って、本実施形態に係る防水コネクタ11の止水構造及び端子付電線12によれば、防水部15をモールド成形する成形金型を削減でき、端子間の接触信頼性を確保できる。   Therefore, according to the water stop structure of the waterproof connector 11 and the terminal-attached electric wire 12 according to the present embodiment, the number of molding dies for molding the waterproof portion 15 can be reduced, and the contact reliability between the terminals can be ensured.

ここで、上述した本発明に係る防水コネクタの止水構造及び端子付電線の実施形態の特徴をそれぞれ以下に簡潔に纏めて列記する。
[1] 導体21の周囲が絶縁性の被覆23によって覆われる電線17と、相手端子と電気的に接触する電気接触部25と前記電線17の端末の導体21と電気的に接続される電線接続部30とが形成される端子13と、前記電線17の端末に取り付けられた前記端子13が端子収容室43に収容されて前記電線17が電線導出穴51から外部53へ導出されるハウジング19と、前記電線17の端末の外周部分に立体造形によって成形され、前記電線17と前記電線導出穴51との間を水密にシールする防水部15と、を備えることを特徴とする防水コネクタ11の止水構造。
[2] 上記[1]の構成の防水コネクタ11の止水構造であって、前記防水部15が、前記電線接続部30における前記導体21の周囲に空隙63を有して成形されることを特徴とする防水コネクタ11の止水構造。
[3] 上記[1]又は[2]の構成の防水コネクタ11の止水構造であって、前記防水部15は、前記被覆23が剥かれて露出した前記導体21に接続された導体接続部27と、前記被覆23の外周側に加締め付けられた電線加締め部29とを有する前記電線接続部30を少なくとも覆うように、前記電線17の端末の外周部分に成形されることを特徴とする防水コネクタ11の止水構造。
[4] 導体21が絶縁性の被覆23によって覆われる電線17と、相手端子と電気的に接触する電気接触部25と、前記導体21に接続される電線接続部30とが形成される端子13と、前記電線17の端末の外周部分に立体造形によって成形され、前記端子13が収容されるハウジング19の電線導出穴51と前記電線17との間を水密にシールするための防水部15と、を備えることを特徴とする端子付電線12。
[5] 上記[4]の構成の端子付電線12であって、前記防水部15が、前記電線接続部30における前記導体21の周囲に空隙63を有することを特徴とする端子付電線。
Here, the features of the embodiment of the water stop structure of the waterproof connector and the electric wire with terminal according to the present invention described above will be briefly summarized below.
[1] Electric wire 17 in which the periphery of the conductor 21 is covered with an insulating coating 23, an electric contact portion 25 that is in electrical contact with the mating terminal, and an electric wire connection that is electrically connected to the conductor 21 at the end of the electric wire 17 And a housing 19 in which the terminal 13 attached to the end of the electric wire 17 is accommodated in the terminal accommodating chamber 43 and the electric wire 17 is led out from the electric wire outlet hole 51 to the outside 53. The waterproof connector 11 is provided with a waterproof portion 15 that is formed by three-dimensional modeling on the outer peripheral portion of the terminal of the electric wire 17 and seals between the electric wire 17 and the electric wire outlet hole 51 in a watertight manner. Water structure.
[2] A waterproof structure of the waterproof connector 11 having the configuration of [1], wherein the waterproof portion 15 is formed with a gap 63 around the conductor 21 in the wire connection portion 30. A waterproof structure of the waterproof connector 11 as a feature.
[3] The waterproof structure of the waterproof connector 11 having the configuration of [1] or [2], wherein the waterproof part 15 is a conductor connection part connected to the conductor 21 exposed by peeling off the covering 23. 27 and an outer peripheral portion of the end of the electric wire 17 so as to cover at least the electric wire connecting portion 30 having an electric wire crimping portion 29 crimped to the outer peripheral side of the covering 23. Waterproof structure of the waterproof connector 11.
[4] The terminal 13 in which the electric wire 17 in which the conductor 21 is covered with the insulating coating 23, the electric contact portion 25 in electrical contact with the mating terminal, and the electric wire connection portion 30 connected to the conductor 21 are formed. And a waterproof portion 15 for watertightly sealing between the wire 17 and the wire lead-out hole 51 of the housing 19 which is molded by three-dimensional modeling on the outer peripheral portion of the terminal of the wire 17 and accommodates the terminal 13; The electric wire 12 with a terminal characterized by comprising.
[5] The terminal-attached electric wire 12 having the configuration of the above [4], wherein the waterproof part 15 has a gap 63 around the conductor 21 in the electric wire connection part 30.

なお、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。
例えば、上記実施形態の防水コネクタ11の止水構造及び端子付電線12では、端子13が箱部31を有する雌端子とされているが、雄端子として構成されてもよい事は勿論である。
また、本実施形態の防水部15は、電線17と電線導出穴51の形状に対応して略円筒形状を有しているが、フラットケーブル等の他の形態の電線や電線導出穴の形状に対応して種々の形状を採るうることは云うまでもない。
In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.
For example, in the water stop structure of the waterproof connector 11 and the terminal-attached electric wire 12 of the above-described embodiment, the terminal 13 is a female terminal having the box portion 31, but it is needless to say that the terminal 13 may be configured as a male terminal.
Moreover, although the waterproof part 15 of this embodiment has substantially cylindrical shape corresponding to the shape of the electric wire 17 and the electric wire outlet hole 51, it has the shape of the electric wire and electric wire outlet hole of other forms, such as a flat cable. It goes without saying that various shapes can be taken correspondingly.

11…防水コネクタ
12…端子付電線
13…端子
15…防水部
17…電線
19…ハウジング
21…導体
23…被覆
25…電気接触部
30…電線接続部
43…端子収容室
51…電線導出穴
53…外部
63…空隙
DESCRIPTION OF SYMBOLS 11 ... Waterproof connector 12 ... Electric wire with terminal 13 ... Terminal 15 ... Waterproof part 17 ... Electric wire 19 ... Housing 21 ... Conductor 23 ... Cover 25 ... Electrical contact part 30 ... Electric wire connection part 43 ... Terminal accommodating chamber 51 ... Electric wire lead-out hole 53 ... External 63 ... Gap

Claims (5)

導体の周囲が絶縁性の被覆によって覆われる電線と、
相手端子と電気的に接触する電気接触部と前記電線の端末の導体と電気的に接続される電線接続部とが形成される端子と、
前記電線の端末に取り付けられた前記端子が端子収容室に収容されて前記電線が電線導出穴から外部へ導出されるハウジングと、
前記電線の端末の外周部分に成形され、前記電線と前記電線導出穴との間を水密にシールする防水部と、を備える防水コネクタの製造方法であって、
前記防水部を立体造形によって成形することを特徴とする防水コネクタの製造方法
An electric wire whose periphery is covered with an insulating coating;
A terminal in which an electrical contact portion that is in electrical contact with the mating terminal and a wire connection portion that is electrically connected to the conductor of the end of the wire; and
A housing in which the terminal attached to the terminal of the electric wire is accommodated in a terminal accommodating chamber and the electric wire is led out from the electric wire outlet hole;
Wherein the formed shape to the outer peripheral portion of the end of a wire, a manufacturing method of a waterproof connector comprising a waterproof portion, the sealing between the electric wire and the wire draw-out hole watertight,
A method for manufacturing a waterproof connector , wherein the waterproof part is formed by three-dimensional modeling .
請求項1に記載の防水コネクタの製造方法であって、
前記防水部が、前記電線接続部における前記導体の周囲に空隙を有して成形されることを特徴とする防水コネクタの製造方法
It is a manufacturing method of the waterproof connector according to claim 1,
The method for manufacturing a waterproof connector, wherein the waterproof part is formed with a gap around the conductor in the electric wire connecting part.
請求項1又は2に記載の防水コネクタの製造方法であって、
前記防水部は、前記被覆が剥かれて露出した前記導体に接続された導体接続部と、前記被覆の外周側に加締め付けられた電線加締め部とを有する前記電線接続部を少なくとも覆うように、前記電線の端末の外周部分に成形されることを特徴とする防水コネクタの製造方法
It is a manufacturing method of the waterproof connector according to claim 1 or 2,
The waterproof portion covers at least the electric wire connecting portion having a conductor connecting portion connected to the conductor exposed by peeling off the covering and an electric wire crimping portion crimped to the outer peripheral side of the covering. A method of manufacturing a waterproof connector, wherein the waterproof connector is molded on an outer peripheral portion of the end of the electric wire.
導体が絶縁性の被覆によって覆われる電線と、
相手端子と電気的に接触する電気接触部と、前記導体に接続される電線接続部とが形成される端子と、
前記電線の端末の外周部分に成形され、前記端子が収容されるハウジングの電線導出穴と前記電線との間を水密にシールするための防水部と、を備える端子付電線の製造方法であって、
前記防水部を立体造形によって成形することを特徴とする端子付電線の製造方法
A wire whose conductor is covered by an insulating coating;
An electrical contact portion that is in electrical contact with the mating terminal, and a terminal formed with an electric wire connection portion connected to the conductor;
Is formed form the outer peripheral portion of the terminal of the electric wire, a method of manufacturing the terminal-equipped wire and a waterproof section for watertight sealing between the wire draw-out hole and the electric wire housing the terminal is accommodated And
The said waterproof part is shape | molded by three-dimensional modeling, The manufacturing method of the electric wire with a terminal characterized by the above-mentioned .
請求項4に記載の端子付電線の製造方法であって、
前記防水部が、前記電線接続部における前記導体の周囲に空隙を有することを特徴とする端子付電線の製造方法
It is a manufacturing method of the electric wire with a terminal according to claim 4,
The said waterproof part has a space | gap around the said conductor in the said electric wire connection part , The manufacturing method of the electric wire with a terminal characterized by the above-mentioned.
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