WO2015063926A1 - Connector waterproof structure and method for manufacturing same - Google Patents

Connector waterproof structure and method for manufacturing same Download PDF

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Publication number
WO2015063926A1
WO2015063926A1 PCT/JP2013/079562 JP2013079562W WO2015063926A1 WO 2015063926 A1 WO2015063926 A1 WO 2015063926A1 JP 2013079562 W JP2013079562 W JP 2013079562W WO 2015063926 A1 WO2015063926 A1 WO 2015063926A1
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WO
WIPO (PCT)
Prior art keywords
electric wire
connector
molded
terminal
rear housing
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Application number
PCT/JP2013/079562
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French (fr)
Japanese (ja)
Inventor
徹 鈴木
慧 中井
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矢崎総業株式会社
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Priority to PCT/JP2013/079562 priority Critical patent/WO2015063926A1/en
Publication of WO2015063926A1 publication Critical patent/WO2015063926A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/005—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • H01R13/5208—Sealing means between cable and housing, e.g. grommet having at least two cable receiving openings

Definitions

  • the present invention relates to a waterproof structure for a connector that requires waterproofness and a method for manufacturing the same.
  • Patent Document 1 describes a conventional example of a connector provided with waterproofness.
  • This connector has a packing structure in which an end portion of an electric wire and a terminal connected to the end portion of the electric wire are accommodated in a pair of upper and lower shield members.
  • JP 2010-272404 A JP 2010-272404 A
  • an object of the present invention is to provide a waterproof structure that can simplify the assembly process without increasing the number of parts and does not increase the size of the connector.
  • a first aspect of the present invention is a connector waterproof structure that is used in a connector that connects an electric power control device and an end of an electric wire, and prevents water from entering the connector.
  • a front connector that accommodates a box-shaped female terminal, and a molded waterproof part that prevents water from entering around the electric wire is integrally formed at least around the electric wire, and the electric wire including the molded waterproof part is connected to the rear housing.
  • the molded waterproof part that prevents water from entering the surroundings of the wire is integrally molded at least around the wire.
  • the molded waterproof part is blocked and water can be reliably prevented from entering.
  • the electric wire including the molded waterproof part is integrally formed with the rear housing, the molded waterproof part is embedded in the rear housing so that the molded waterproof part can be kept in close contact with the electric wire. The invasion preventing power of water by the waterproof part increases.
  • the molded waterproof part is integrally formed around the end of the electric wire and the electric wire including the molded waterproof part is integrally formed with the rear housing to form a waterproof structure, the number of parts for waterproofing may increase. There is no increase in the size of the connector.
  • the molded waterproof part is integrally formed with the electric wire and the rear housing is integrally formed, the assembly process is reduced and the manufacture is facilitated.
  • a restriction engaging part for restricting relative movement with the rear housing is formed in the molded waterproof part.
  • the restriction engagement portion for restricting the relative movement with the rear housing is formed in the molded waterproof portion, it is possible to prevent the molded waterproof portion from being displaced at the time of holding or cooling the rear housing. Thereby, it can control that a forming waterproof part moves relative to a rear housing, and since it does not shift from a fixed position of an electric wire, it can prevent that waterproofness falls.
  • the plate terminal connected to the electric wire and the female terminal are welded.
  • the plate terminal and the female terminal are welded, the plate terminal and the female terminal are firmly connected, and the reliability of the electrical connection is improved.
  • a connector manufacturing method for use in a connector for connecting a power control electric device and an end portion of an electric wire, and preventing water from entering the connector. After integrally forming a molded waterproof part that prevents water from entering from the periphery of the wire around the wire, the molded waterproof part is molded integrally with the rear housing, and the plate terminal and the female terminal are welded, Assemble the front housing that houses the female terminals to the rear housing.
  • the molded waterproof part that prevents water from entering from the surroundings of the wire is integrally molded around the wire, it is molded integrally with the rear housing with the molded waterproof part molded, so there is no increase in the number of parts and assembly process. It is possible to provide a waterproof structure that prevents water from entering.
  • FIG. 1 is an exploded perspective view of a connector used in the waterproof structure of the first embodiment.
  • FIG. 2 is a perspective view showing the electric wire before the molded waterproof part is integrally formed.
  • FIG. 3 is a perspective view showing an electric wire to which a female terminal is connected after integrally forming a molded waterproof part.
  • FIG. 4 is a perspective view showing a state where the rear housing is molded in a state where the molded waterproof part is molded.
  • FIG. 5 is an exploded perspective view showing a front portion used for the front connector.
  • FIG. 6 is a perspective view of an electric wire integrally formed with a molded waterproof part in the second embodiment.
  • FIG. 7 is a front view of FIG.
  • FIG. 8 is a side view of FIG.
  • FIG. 9 is an exploded perspective view of a connector used in the waterproof structure of the third embodiment.
  • FIG. 10 is an exploded perspective view of a modification of the third embodiment.
  • FIG. 1-5 shows a waterproof structure 1 for a connector according to the first embodiment.
  • the connector 2 used in the waterproof structure 1 is for connecting a power control electric device (inverter: not shown) and an electric wire (power line) 11, and between the electric power control device and the electric wire 11.
  • the power from the power source is supplied to the power control electric device.
  • the connector 2 includes a plate-like terminal 3, a rear connector 4, a front connector 5, and a molded waterproof part 6.
  • the plate terminal 3 is connected to the end of the electric wire 11 from the power source.
  • the electric wire 11 is formed of a two-core wire
  • the plate-like terminal 3 is connected to the end of each electric wire 11.
  • the plate-like terminal 3 is a plate-like terminal main body portion 3 a and a wire-side connection portion that is bent at a right angle from the terminal main body portion 3 a and is connected to the end of the inner conductor of the electric wire 11 by crimping.
  • 3b and a female terminal side connection portion 3c which is integrally formed at the end of the terminal main body portion 3a opposite to the wire side connection portion 3b and connected to the female terminal 12 by crimping and welding.
  • the rear connector 4 has a rear housing 14 in which the plate terminal 3 and the end portion of the electric wire 11 connected to the plate terminal 3 are accommodated.
  • the rear housing 14 is made of an insulating resin.
  • the rear housing 14 is integrally provided with a mounting portion 14a having a long cylindrical shape to which the front connector 5 is assembled on the front side.
  • a locking convex portion 14b for assembling with the front connector 5 is formed on the outer surface of the mounting portion 14a.
  • the rear housing 14 is not molded in advance, and is integrally molded in the mold together with the molded waterproof portion 6 when the connector 2 is manufactured.
  • the integrally formed rear housing 14 is accommodated in the shield shell 21.
  • the shield shell 21 is formed in a box shape from a metal such as aluminum, and performs electromagnetic wave shielding on the accommodated rear housing 14.
  • the front connector 5 includes a front housing body 15 (front housing) and a front portion 17.
  • the front housing body 15 accommodates a pair of female terminals 12.
  • the female terminal 12 is formed in a box shape and is accommodated in the front housing body 15 in a state of being connected to each of the plate-like terminals 3.
  • the front housing body 15 is formed with a terminal accommodating chamber 15c.
  • the terminal accommodating chamber 15c is partitioned by the partition wall portion 15a, and mutual contact of the female terminals 12 inserted into the respective terminal accommodating chambers 15c is prevented.
  • the front housing body 15 is assembled to the mounting portion 14 a of the rear housing 14, and a hook portion 15 b corresponding to the locking convex portion 14 b of the mounting portion 14 a protrudes toward the rear housing 14.
  • the front terminal 17 is inserted with a counterpart terminal of an electric device for power control.
  • the front portion 17 includes a lower front portion 17a and an upper front portion 17b, which can be assembled with each other.
  • the lower front portion 17a is formed with a rectangular counterpart terminal insertion port 19 into which a plate-like counterpart terminal (not shown) from the electric equipment for power control is inserted.
  • the mating terminal inserted into the mating terminal insertion port 19 is electrically connected to the box-shaped female terminal 12 housed in the terminal housing chamber 15 c of the front housing body 15.
  • the molded waterproof part 6 is integrally molded around the electric wire 11.
  • the molded waterproof part 6 is provided so as to surround the periphery of the electric wire 11 made of a two-core wire, and blocks the water moving to the plate-like terminal 3 side through the insulating sheath 11a of the electric wire 11. Thereby, the penetration
  • the molded waterproof part 6 is not molded in advance, and is integrally molded in the mold when the connector 2 is manufactured.
  • FIG. 1 shows the shape of a molded waterproof part formed by integral molding. Since the molded waterproof portion 6 is integrated with the electric wire 11 by being integrally molded in this manner, the molded waterproof portion 6 is more firmly coupled to the electric wire 11 than when a seal ring such as rubber is simply wound around the electric wire 11. For this reason, waterproofness improves remarkably.
  • thermosetting elastomer is used as the material of the molded waterproof part 6.
  • thermosetting elastomer vulcanized rubber or thermosetting resin elastomer can be used.
  • thermosetting resin-based elastomer urethane rubber, silicone rubber, fluorine rubber, or the like can be appropriately selected.
  • FIG. 2 shows a state before the molded waterproof portion 6 is integrally formed, and the plate-like terminals 3 are connected to the end portions of the respective electric wires 11 composed of two core wires.
  • FIG. 3 shows a state after the molded waterproof part 6 is integrally molded.
  • An end portion of the electric wire 11 to which the plate-like terminal 3 is attached is set in a mold, and a thermosetting elastomer is injected into the mold to be thermally cured. Thereby, the molded waterproof part 6 is integrally molded around the end of the electric wire 11.
  • the box-shaped female terminals 12 are connected to the respective plate-shaped terminals 3.
  • the female terminal 12 includes a box-shaped female box connection portion 12a and a thin plate-like plate connection portion 12b extending from the female box connection portion 12a.
  • the female terminal side connecting portion 3c of the plate-like terminal 3 is crimped to the plate-like connecting portion 12b.
  • the plate-shaped connection part 12b and the female terminal side connection part 3c are combined by welding. By performing the welding, the plate-like terminal 3 and the female terminal 12 are firmly connected. This improves the reliability of electrical connection.
  • FIG. 4 shows a state in which the rear housing 14 is integrally formed.
  • the integral molding shown in FIG. 4 is performed after integral molding of the molded waterproof part 6 to the end of the electric wire 11 and connection of the plate-like terminal 3 and the female terminal 12 by welding.
  • the end portion of the electric wire 11 on which the molded waterproof portion 6 is formed and the plate-like terminal 3 connected to the end portion of the electric wire 11 are set in the mold die. It is performed by injecting an insulating resin into the interior and curing.
  • the end of the electric wire 11 provided with the molded waterproof part 6 and the molded waterproof part 6 is embedded in the rear housing 14. Therefore, the molded waterproof part 6 is fixed in the rear housing 14, and the molded waterproof part 6 is prevented from separating from the electric wire 11. Accordingly, since the molded waterproof part 6 can be kept in close contact with the periphery of the electric wire 11, water can be reliably prevented from entering by the molded waterproof part 6.
  • the molded waterproof part 6 is integrally formed at the end of the electric wire 11, and the rear housing 14 is integrally molded with the molded waterproof part 6, and then the front housing body 15 is assembled to the rear housing 14. In this case, the front portion 17 is assembled and inserted into the front housing body 15 to form the front connector 5.
  • a first seal ring 7 made of rubber is disposed between the front housing body 15 and the front portion 17.
  • the front housing body 15 is assembled to the mounting portion 14a of the rear housing 14 while the female terminal 12 is inserted into the terminal accommodating chamber 15c of the front housing body 15.
  • the hook portion 15b is locked to the locking convex portion 14b while sandwiching the second seal ring 8 made of rubber, and the assembly is completed.
  • the molded waterproof portion 6 is integrally formed around the end of the electric wire 11, the molded waterproof portion 6 is in close contact with the insulating outer skin 11 a of the electric wire 11 and is firmly coupled to the electric wire 11. .
  • the electric wire 11 including the molded waterproof portion 6 is integrally formed with the rear housing 14, the molded waterproof portion 6 is embedded integrally with the rear housing 14, and the molded waterproof portion 6 is kept in close contact with the electric wire 11. This can increase the prevention of water penetration by the molded waterproof part 6.
  • the molded waterproof part 6 is integrally formed around the end of the electric wire 11, and the electric wire 11 including the molded waterproof part 6 is integrally formed with the rear housing 14 to form a waterproof structure. For this reason, the number of parts for waterproofing does not increase, and the connector 2 does not increase in size. Moreover, since the molded waterproof portion 6 is integrally formed with the electric wire 11 and the rear housing 14 is integrally formed, the assembly process is reduced and the manufacture is facilitated.
  • [Second Embodiment] 6-8 show a second embodiment.
  • the restriction engagement portion 23 is formed on the molded waterproof portion 6 that is integrally formed around the end of the electric wire 11.
  • the restricting engagement portion 23 is configured by an engagement groove 24 formed in a concave shape on the outer surface of the molded waterproof portion 6.
  • the engaging groove 24 as the restricting engaging portion 23 is formed in a direction crossing the length direction of the electric wire 11.
  • the engagement groove 24 is formed on the outer surface of the molded waterproof part 6 so as to be orthogonal to the length direction of the electric wire 11.
  • the engaging groove 24 is formed in an intermediate portion in the length direction (vertical direction in FIGS. 6-8) of the molded waterproof part 6, and the molded waterproof part 6 is in a state of sandwiching the engaging groove 24.
  • the engagement groove 24 is formed to a depth that reaches the insulating outer skin 11 a of the electric wire 11.
  • the molded waterproof part 6 is prevented from being displaced at the time of holding or cooling the rear housing 14. be able to.
  • the shrinkage rate when the rear housing 14 is molded is different. Since stress acts on the molded waterproof part 6 due to the difference in shrinkage rate, the molded waterproof part 6 may be displaced with respect to the electric wire 11 when the rear housing 14 is integrally formed. When such a shift
  • the engaging groove 24 is formed in the molded waterproof part 6 as in the second embodiment, the resin forming the rear housing 14 enters the engaging groove 24 and is cured in the resin entering state.
  • the molded waterproof part 6 is fixed in place. Accordingly, the molded waterproof portion 6 is restricted from moving relative to the rear housing 14 and is not displaced from the fixed position of the electric wire 11. For this reason, it can prevent that the waterproofness by the shaping
  • the restricting engagement portion 23 may be a protrusion formed on the molded waterproof portion 6 instead of a groove.
  • FIG. 9 shows a connector 2 used in the waterproof structure 1 of the third embodiment.
  • a coaxial cable is used as the electric wire 11.
  • Other configurations are the same as those of the first embodiment, and the same members as those in FIG.
  • An electric wire 11 made of a coaxial cable is formed by arranging an inner conductor 31, an outer conductor 32 on the outer periphery of the inner conductor 31 via an insulating inner skin, and covering the outer periphery of the outer conductor 32 with an insulating outer shell 33. .
  • the inner conductor 31 and the outer conductor 32 are drawn by being peeled, and the plate-like terminals 3 are connected to the end portions of the inner conductor 31 and the outer conductor 32, respectively.
  • the molded waterproof part 6 is integrally formed with respect to the part including the ends of the inner conductor 31 and the outer conductor 32. Since the inner conductor 31 and the outer conductor 32 are drawn out in directions away from each other, the molded waterproof portion 6 has a conductor covering portion 35 surrounding them, and a lead-out portion (end) of the inner conductor 31 and the outer conductor 32 of the electric wire 11.
  • Part covering part 36 is formed into a shape in which it is integrally formed.
  • the molded waterproof part 6 is an integral body in which a thermosetting elastomer is injected and cured in a state where the inner conductor 31 and the outer conductor 32, their lead portions (ends), and the plate-like terminal 3 are set in a mold. It is formed by molding. After the molded waterproof part 6 is molded, the rear housing 14 is integrally molded with respect to the part including the molded waterproof part 6 in the electric wire 11 as in the first embodiment.
  • the molded waterproof portion 6 is integrally formed around the end portion of the electric wire 11 made of a coaxial cable, the molded waterproof portion 6 is firmly bonded in an integrated state in close contact with the electric wire 11. For this reason, the molded waterproofing part 6 interrupts
  • the molded waterproof portion 6 is integrally formed around the end portion of the electric wire 11, and the electric wire 11 including the molded waterproof portion 6 is integrally formed with the rear housing 14 to form a waterproof structure. For this reason, the number of parts for waterproofing does not increase, and the connector 2 does not increase in size. Moreover, since the molded waterproof portion 6 is integrally formed with the electric wire 11 and the rear housing 14 is integrally formed, the assembly process is reduced and the manufacture is facilitated.
  • the restriction engagement portion 23 of the second embodiment may be formed on the molded waterproof portion 6, thereby preventing the molded waterproof portion 6 from being displaced, thereby preventing a decrease in waterproofness. can do.
  • FIG. 10 shows a modification when a coaxial cable is used as the electric wire 11.
  • a cylindrical connection end 37 is integrally formed with the plate-like terminal 3 connected to the outer conductor 32.
  • the connection end 37 is extrapolated to the exposed outer conductor 32 which is peeled off, and the connection end 37 is connected to the outer conductor 32 by crimping or ultrasonic bonding. Thereby, the inner conductor 31 and the outer conductor 32 are pulled out in substantially the same direction.
  • the formed waterproof part 6 surrounding the periphery of the end of the electric wire 11 is formed to have a large diameter such that the end cover part 36 surrounds the connection end 37.
  • the present invention is not limited to the above embodiment, and various modifications are possible.
  • the molded waterproof part 6 is integrally formed around the end of the electric wire 11, but the molded waterproof part 6 may be formed longer with respect to the electric wire 11 as well as the end.

Abstract

Disclosed is a connector waterproof structure (1) wherein: a mold waterproof section (6) that prevents water from entering from the circumference of an electric cable (11) is integrally molded at least at the circumference of the electric cable (11); and the electric cable (11) including the mold waterproof section (6) is integrally molded with a rear housing (14).

Description

コネクタの防水構造及びその製造方法Waterproof structure of connector and manufacturing method thereof
　本発明は、防水性が要求されるコネクタの防水構造及びその製造方法に関する。 The present invention relates to a waterproof structure for a connector that requires waterproofness and a method for manufacturing the same.
　自動車等に用いられるコネクタにおいては、電線の外周を水が伝ってコネクタ内部に侵入すると、絶縁性が失われるため、防水性を確保する必要がある。 In connectors used for automobiles and the like, if water travels around the outer circumference of the wire and enters the connector, the insulation is lost, so it is necessary to ensure waterproofness.
　特許文献１には、防水性を付与したコネクタの従来例が記載されている。このコネクタは、電線の端部及び電線の端部に接続される端子を上下一対のシールド部材内に収容したパッキン構造とするものである。 Patent Document 1 describes a conventional example of a connector provided with waterproofness. This connector has a packing structure in which an end portion of an electric wire and a terminal connected to the end portion of the electric wire are accommodated in a pair of upper and lower shield members.
特開２０１０－２７２４０４号公報(JP 2010-272404 A)JP 2010-272404 A (JP 2010-272404 A)
　従来例のコネクタにおいては、上下一対のシール部材を組み立てる必要があるため、部品点数が多くなり、組み立て工程も煩雑となり、コネクタが大型化する問題を有している。特に、電源に接続される電線には、大電流が流れるため、防水を確実に行う必要があるところから、防水のための構造が複雑となる問題がある。 In the conventional connector, since it is necessary to assemble a pair of upper and lower sealing members, the number of parts increases, the assembly process becomes complicated, and there is a problem that the connector becomes large. In particular, since a large current flows through the electric wire connected to the power source, there is a problem that the structure for waterproofing is complicated because it is necessary to ensure waterproofing.
　そこで、本発明は、部品点数が多くなることなく、組み立て工程を簡単とすることが可能で、コネクタが大型化することのない防水構造を提供することを目的とする。 Therefore, an object of the present invention is to provide a waterproof structure that can simplify the assembly process without increasing the number of parts and does not increase the size of the connector.
　本発明の第１の態様は、電力制御用電気機器と電線の端部とを接続するコネクタに用いられ、このコネクタ内への水の浸入を防止するコネクタの防水構造であって、電線の端部に接続された板状端子と、板状端子が収容されるリヤハウジングを有するリヤコネクタと、リヤコネクタに組み付けられ板状端子と接続されると共に電力制御用電気機器側の相手端子と接続される箱状のメス端子が収容されるフロントコネクタとを備え、電線の周囲からの水の侵入を防止する成形防水部を少なくとも電線の周囲に一体成形し、成形防水部を含む電線をリヤハウジングと一体成形する。 A first aspect of the present invention is a connector waterproof structure that is used in a connector that connects an electric power control device and an end of an electric wire, and prevents water from entering the connector. A plate-like terminal connected to the portion, a rear connector having a rear housing in which the plate-like terminal is accommodated, and a plate-like terminal assembled to the rear connector and connected to a counterpart terminal on the power control electric device side. A front connector that accommodates a box-shaped female terminal, and a molded waterproof part that prevents water from entering around the electric wire is integrally formed at least around the electric wire, and the electric wire including the molded waterproof part is connected to the rear housing. One-piece molding.
　電線の周囲からの水の侵入を防止する成形防水部を少なくとも電線の周囲に一体成形するため、成形防水部が電線に密着した一体状態となって電線と強固に結合され、電線を伝う水を成形防水部が遮断し、水の侵入を確実に防止することができる。また、成形防水部を含む電線をリヤハウジングと一体成形しているため、成形防水部がリヤハウジングに一体となって埋め込まれ、成形防水部が電線に密着した状態を保持することができ、成形防水部による水の侵入防止力が増大する。 The molded waterproof part that prevents water from entering the surroundings of the wire is integrally molded at least around the wire. The molded waterproof part is blocked and water can be reliably prevented from entering. In addition, since the electric wire including the molded waterproof part is integrally formed with the rear housing, the molded waterproof part is embedded in the rear housing so that the molded waterproof part can be kept in close contact with the electric wire. The invasion preventing power of water by the waterproof part increases.
　更に、電線の端部の周囲に成形防水部を一体成形し、この成形防水部を含む電線をリヤハウジングと一体成形して防水構造とすることから、防水のための部品点数が多くなることがなく、コネクタが大型化することがない。しかも、成形防水部を電線と一体成形すると共に、リヤハウジングを一体成形するため、組み立て工程が少なくなり、製造が容易となる。 Further, since the molded waterproof part is integrally formed around the end of the electric wire and the electric wire including the molded waterproof part is integrally formed with the rear housing to form a waterproof structure, the number of parts for waterproofing may increase. There is no increase in the size of the connector. In addition, since the molded waterproof part is integrally formed with the electric wire and the rear housing is integrally formed, the assembly process is reduced and the manufacture is facilitated.
　成形防水部には、前記リヤハウジングとの相対移動を規制する規制係合部が形成されていることが好ましい。 It is preferable that a restriction engaging part for restricting relative movement with the rear housing is formed in the molded waterproof part.
　リヤハウジングとの相対移動を規制する規制係合部が成形防水部に形成されていることにより、リヤハウジング成形の保圧時や冷却時における成形防水部のずれを防止することができる。これにより、成形防水部がリヤハウジングと相対移動することを規制でき、電線の定位置からずれることがなくなるため、防水性が低下することを防止することができる。 Since the restriction engagement portion for restricting the relative movement with the rear housing is formed in the molded waterproof portion, it is possible to prevent the molded waterproof portion from being displaced at the time of holding or cooling the rear housing. Thereby, it can control that a forming waterproof part moves relative to a rear housing, and since it does not shift from a fixed position of an electric wire, it can prevent that waterproofness falls.
　電線に接続された板状端子とメス端子とが溶接されていることが好ましい。 It is preferable that the plate terminal connected to the electric wire and the female terminal are welded.
　板状端子とメス端子とが溶接されていることにより、板状端子とメス端子とが強固に接続され、電気的接続の信頼性が向上する。 Since the plate terminal and the female terminal are welded, the plate terminal and the female terminal are firmly connected, and the reliability of the electrical connection is improved.
　本発明の第２の態様は、電力制御用電気機器と、電線の端部とを接続するコネクタに用いられ、このコネクタ内への水の浸入を防止するコネクタの製造方法であって、少なくとも電線の周囲に電線の周囲からの水の侵入を防止する成形防水部を一体成形した後に、この成形防水部を成形した状態でリヤハウジングと一体成形し、板状端子とメス端子とを溶接し、メス端子を収容するフロントハウジングをリヤハウジングに組み付ける。 According to a second aspect of the present invention, there is provided a connector manufacturing method for use in a connector for connecting a power control electric device and an end portion of an electric wire, and preventing water from entering the connector. After integrally forming a molded waterproof part that prevents water from entering from the periphery of the wire around the wire, the molded waterproof part is molded integrally with the rear housing, and the plate terminal and the female terminal are welded, Assemble the front housing that houses the female terminals to the rear housing.
　電線の周囲に電線の周囲からの水の侵入を防止する成形防水部を一体成形した後、成形防水部を成形した状態でリヤハウジングと一体成形するため、部品点数や組み立て工程が多くなることなく、水の侵入を防止する防水構造とすることができる。 Since the molded waterproof part that prevents water from entering from the surroundings of the wire is integrally molded around the wire, it is molded integrally with the rear housing with the molded waterproof part molded, so there is no increase in the number of parts and assembly process. It is possible to provide a waterproof structure that prevents water from entering.
図１は、第１実施形態の防水構造に用いられるコネクタの分解斜視図である。FIG. 1 is an exploded perspective view of a connector used in the waterproof structure of the first embodiment. 図２は、成形防水部を一体成形する前の電線を示す斜視図である。FIG. 2 is a perspective view showing the electric wire before the molded waterproof part is integrally formed. 図３は、成形防水部を一体成形した後、メス端子が接続した電線を示す斜視図である。FIG. 3 is a perspective view showing an electric wire to which a female terminal is connected after integrally forming a molded waterproof part. 図４は、成形防水部を成形した状態でリヤハウジングを成形した状態を示す斜視図である。FIG. 4 is a perspective view showing a state where the rear housing is molded in a state where the molded waterproof part is molded. 図５は、フロントコネクタに用いられるフロント部を示す分解斜視図である。FIG. 5 is an exploded perspective view showing a front portion used for the front connector. 図６は、第２実施形態における成形防水部を一体成形した電線の斜視図である。FIG. 6 is a perspective view of an electric wire integrally formed with a molded waterproof part in the second embodiment. 図７は、図６の正面図である。FIG. 7 is a front view of FIG. 図８は、図６の側面図である。FIG. 8 is a side view of FIG. 図９は、第３実施形態の防水構造に用いられるコネクタの分解斜視図である。FIG. 9 is an exploded perspective view of a connector used in the waterproof structure of the third embodiment. 図１０は、第３実施形態の変形例の分解斜視図である。FIG. 10 is an exploded perspective view of a modification of the third embodiment.
　以下、本発明の実施形態を図面に基づいて説明する。なお、各実施形態において、同一の部材は同一の符号を付して対応させてある。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each embodiment, the same members are assigned the same reference numerals.
［第１実施形態］
　図１―５は、第１実施形態に係るコネクタの防水構造１を示す。防水構造１に用いられるコネクタ２は、電力制御用電気機器（インバータ：図示省略）と、電線（電源線）１１とを接続するためのものであり、電力制御用電気機器と電線１１との間に設けられることにより電源からの電力を電力制御用電気機器に供給する。コネクタ２は板状端子３と、リヤコネクタ４と、フロントコネクタ５と、成形防水部６とを備えて形成されている。 [First Embodiment]
1-5 shows a waterproof structure 1 for a connector according to the first embodiment. The connector 2 used in the waterproof structure 1 is for connecting a power control electric device (inverter: not shown) and an electric wire (power line) 11, and between the electric power control device and the electric wire 11. The power from the power source is supplied to the power control electric device. The connector 2 includes a plate-like terminal 3, a rear connector 4, a front connector 5, and a molded waterproof part 6.
　板状端子３は電源からの電線１１の端部に接続される。第１実施形態では、電線１１は２芯線によって形成されており、板状端子３はそれぞれの電線１１の端部に接続される。図２に示すように、板状端子３は板状の端子本体部３ａと、端子本体部３ａから直角状に屈曲され、電線１１の内部導体の端部に圧着によって接続される電線側接続部３ｂと、電線側接続部３ｂと反対側の端子本体部３ａの端部に一体に形成され、メス端子１２に圧着及び溶接により接続されるメス端子側接続部３ｃとによって形成されている。 The plate terminal 3 is connected to the end of the electric wire 11 from the power source. In the first embodiment, the electric wire 11 is formed of a two-core wire, and the plate-like terminal 3 is connected to the end of each electric wire 11. As shown in FIG. 2, the plate-like terminal 3 is a plate-like terminal main body portion 3 a and a wire-side connection portion that is bent at a right angle from the terminal main body portion 3 a and is connected to the end of the inner conductor of the electric wire 11 by crimping. 3b and a female terminal side connection portion 3c which is integrally formed at the end of the terminal main body portion 3a opposite to the wire side connection portion 3b and connected to the female terminal 12 by crimping and welding.
　リヤコネクタ４はリヤハウジング１４を有し、このリヤハウジング１４内に板状端子３及び板状端子３に接続された電線１１の端部が収容される。リヤハウジング１４は絶縁性樹脂によって形成される。リヤハウジング１４には、フロントコネクタ５が組み付けられる長円筒状の外形の取付部１４ａが前面側に一体に設けられている。取付部１４ａの外面には、フロントコネクタ５との組み付けを行うための係止凸部１４ｂが形成されている。リヤハウジング１４は、あらかじめ成形されているものではなく、コネクタ２の製造時に成形防水部６とともにモールド型内で一体成形される。 The rear connector 4 has a rear housing 14 in which the plate terminal 3 and the end portion of the electric wire 11 connected to the plate terminal 3 are accommodated. The rear housing 14 is made of an insulating resin. The rear housing 14 is integrally provided with a mounting portion 14a having a long cylindrical shape to which the front connector 5 is assembled on the front side. On the outer surface of the mounting portion 14a, a locking convex portion 14b for assembling with the front connector 5 is formed. The rear housing 14 is not molded in advance, and is integrally molded in the mold together with the molded waterproof portion 6 when the connector 2 is manufactured.
　一体成形されたリヤハウジング１４は、シールドシェル２１に収容される。シールドシェル２１は、アルミニウム等の金属によりボックス形状に形成されており、収容したリヤハウジング１４に対する電磁波シールドを行う。 The integrally formed rear housing 14 is accommodated in the shield shell 21. The shield shell 21 is formed in a box shape from a metal such as aluminum, and performs electromagnetic wave shielding on the accommodated rear housing 14.
　フロントコネクタ５は、フロントハウジング本体１５（フロントハウジング）と、フロント部１７とを備える。 The front connector 5 includes a front housing body 15 (front housing) and a front portion 17.
　フロントハウジング本体１５は、一対のメス端子１２を収容する。メス端子１２は、箱状に形成されており、板状端子３のそれぞれに接続された状態でフロントハウジング本体１５に収容される。メス端子１２を収容するために、フロントハウジング本体１５には、端子収容室１５ｃが形成されている。端子収容室１５ｃは、隔壁部１５ａによって区画されており、それぞれの端子収容室１５ｃに挿入されたメス端子１２の相互接触が防止されている。フロントハウジング本体１５は、リヤハウジング１４の取付部１４ａに組み付けられるものであり、取付部１４ａの係止凸部１４ｂと対応したフック部１５ｂがリヤハウジング１４に向かって突出している。 The front housing body 15 accommodates a pair of female terminals 12. The female terminal 12 is formed in a box shape and is accommodated in the front housing body 15 in a state of being connected to each of the plate-like terminals 3. In order to accommodate the female terminal 12, the front housing body 15 is formed with a terminal accommodating chamber 15c. The terminal accommodating chamber 15c is partitioned by the partition wall portion 15a, and mutual contact of the female terminals 12 inserted into the respective terminal accommodating chambers 15c is prevented. The front housing body 15 is assembled to the mounting portion 14 a of the rear housing 14, and a hook portion 15 b corresponding to the locking convex portion 14 b of the mounting portion 14 a protrudes toward the rear housing 14.
　フロント部１７は、電力制御用の電気機器の相手端子が差し込まれる。図５に示すように、フロント部１７は、下側フロント部１７ａと、上側フロント部１７ｂとを備え、これらが相互に組み付け可能となっている。下側フロント部１７ａには、電力制御用の電気機器側からの板状の相手端子（図示省略）が差し込まれる矩形状の相手端子挿入口１９が形成されている。相手端子挿入口１９に差し込まれた相手端子は、フロントハウジング本体１５の端子収容室１５ｃ内に収容されている箱状のメス端子１２と電気的に接続される。 The front terminal 17 is inserted with a counterpart terminal of an electric device for power control. As shown in FIG. 5, the front portion 17 includes a lower front portion 17a and an upper front portion 17b, which can be assembled with each other. The lower front portion 17a is formed with a rectangular counterpart terminal insertion port 19 into which a plate-like counterpart terminal (not shown) from the electric equipment for power control is inserted. The mating terminal inserted into the mating terminal insertion port 19 is electrically connected to the box-shaped female terminal 12 housed in the terminal housing chamber 15 c of the front housing body 15.
　成形防水部６は、電線１１の周囲に一体成形される。成形防水部６は、２芯線からなる電線１１の周囲を囲むように設けられており、電線１１の絶縁外皮１１ａを伝わって板状端子３側に移動する水を遮断する。これにより、電線１１の周囲からの水の侵入を防止することができる。 The molded waterproof part 6 is integrally molded around the electric wire 11. The molded waterproof part 6 is provided so as to surround the periphery of the electric wire 11 made of a two-core wire, and blocks the water moving to the plate-like terminal 3 side through the insulating sheath 11a of the electric wire 11. Thereby, the penetration | invasion of the water from the circumference | surroundings of the electric wire 11 can be prevented.
　成形防水部６は、あらかじめ成形されるものではなく、コネクタ２の製造時にモールド型内で一体成形される。図１は、一体成形により成形される成形防水部の形状を示している。このように一体成形されることにより、成形防水部６は電線１１と一体となるため、ゴム等のシールリングを単に電線１１に巻き付けた場合に比べて、電線１１と強固に結合される。このため防水性が格段に向上する。 The molded waterproof part 6 is not molded in advance, and is integrally molded in the mold when the connector 2 is manufactured. FIG. 1 shows the shape of a molded waterproof part formed by integral molding. Since the molded waterproof portion 6 is integrated with the electric wire 11 by being integrally molded in this manner, the molded waterproof portion 6 is more firmly coupled to the electric wire 11 than when a seal ring such as rubber is simply wound around the electric wire 11. For this reason, waterproofness improves remarkably.
　成形防水部６の材料としては、熱硬化性エラストマーが使用される。熱硬化性エラストマーとしては、加硫ゴム、熱硬化性樹脂系エラストマーを使用することができる。熱硬化性樹脂系エラストマーとしては、ウレタンゴム、シリコーンゴム、フッ素ゴム等を適宜選択することができる。 A thermosetting elastomer is used as the material of the molded waterproof part 6. As the thermosetting elastomer, vulcanized rubber or thermosetting resin elastomer can be used. As the thermosetting resin-based elastomer, urethane rubber, silicone rubber, fluorine rubber, or the like can be appropriately selected.
　次に、第１実施形態のコネクタ２の製造方法を図２―４により説明する。図２は成形防水部６の一体成形前の状態を示し、２芯線からなるそれぞれの電線１１の端部に板状端子３が接続されている。 Next, a method for manufacturing the connector 2 according to the first embodiment will be described with reference to FIGS. FIG. 2 shows a state before the molded waterproof portion 6 is integrally formed, and the plate-like terminals 3 are connected to the end portions of the respective electric wires 11 composed of two core wires.
　図３は成形防水部６を一体成形した後の状態を示す。板状端子３が取り付けられた電線１１の端部をモールド型内にセットし、モールド型内に熱硬化性エラストマーを注入して熱硬化する。これにより電線１１の端部の周囲に成形防水部６が一体成形される。 FIG. 3 shows a state after the molded waterproof part 6 is integrally molded. An end portion of the electric wire 11 to which the plate-like terminal 3 is attached is set in a mold, and a thermosetting elastomer is injected into the mold to be thermally cured. Thereby, the molded waterproof part 6 is integrally molded around the end of the electric wire 11.
　成形防水部６の一体成形の後、箱状のメス端子１２をそれぞれの板状端子３に接続する。メス端子１２は、図１、３に示すように、箱状のメス箱部接続部１２ａと、メス箱部接続部１２ａから延びる薄板状の板状接続部１２ｂとを備える。板状接続部１２ｂに対して板状端子３のメス端子側接続部３ｃを圧着する。その後、溶接を行うことにより、板状接続部１２ｂとメス端子側接続部３ｃとを結合させる。溶接を行うことにより、板状端子３とメス端子１２とが強固に接続された状態となる。これにより電気的接続の信頼性が向上する。 After the molded waterproof part 6 is integrally molded, the box-shaped female terminals 12 are connected to the respective plate-shaped terminals 3. As shown in FIGS. 1 and 3, the female terminal 12 includes a box-shaped female box connection portion 12a and a thin plate-like plate connection portion 12b extending from the female box connection portion 12a. The female terminal side connecting portion 3c of the plate-like terminal 3 is crimped to the plate-like connecting portion 12b. Then, the plate-shaped connection part 12b and the female terminal side connection part 3c are combined by welding. By performing the welding, the plate-like terminal 3 and the female terminal 12 are firmly connected. This improves the reliability of electrical connection.
　図４はリヤハウジング１４を一体成形した状態を示す。図４に示す一体成形は、電線１１の端部への成形防水部６の一体成形及び溶接による板状端子３とメス端子１２との接続の後に行われる。 FIG. 4 shows a state in which the rear housing 14 is integrally formed. The integral molding shown in FIG. 4 is performed after integral molding of the molded waterproof part 6 to the end of the electric wire 11 and connection of the plate-like terminal 3 and the female terminal 12 by welding.
　リヤハウジング１４の一体成形にあっては、成形防水部６が形成されている電線１１の端部及び電線１１の端部に接続されている板状端子３をモールド型内にセットし、モールド型内に絶縁性樹脂を注入して硬化することにより行う。この成形により、成形防水部６や成形防水部６が設けられている電線１１の端部がリヤハウジング１４に埋め込まれた状態となる。従って、成形防水部６がリヤハウジング１４内で固定された状態となり、成形防水部６が電線１１から離れることが阻止される。従って、成形防水部６が電線１１の周囲に密着した状態を保持することができるため、成形防水部６による水の侵入防止を確実に行うことができる。 In the integral molding of the rear housing 14, the end portion of the electric wire 11 on which the molded waterproof portion 6 is formed and the plate-like terminal 3 connected to the end portion of the electric wire 11 are set in the mold die. It is performed by injecting an insulating resin into the interior and curing. By this molding, the end of the electric wire 11 provided with the molded waterproof part 6 and the molded waterproof part 6 is embedded in the rear housing 14. Therefore, the molded waterproof part 6 is fixed in the rear housing 14, and the molded waterproof part 6 is prevented from separating from the electric wire 11. Accordingly, since the molded waterproof part 6 can be kept in close contact with the periphery of the electric wire 11, water can be reliably prevented from entering by the molded waterproof part 6.
　成形防水部６を電線１１の端部に一体成形し、リヤハウジング１４を成形防水部６と一体成形した後に、フロントハウジング本体１５をリヤハウジング１４に組み付ける。この場合、フロント部１７を組み立ててフロントハウジング本体１５内に挿入してフロントコネクタ５を形成する。なお、フロントハウジング本体１５とフロント部１７との間には、ゴムからなる第１シールリング７が配置される。 The molded waterproof part 6 is integrally formed at the end of the electric wire 11, and the rear housing 14 is integrally molded with the molded waterproof part 6, and then the front housing body 15 is assembled to the rear housing 14. In this case, the front portion 17 is assembled and inserted into the front housing body 15 to form the front connector 5. A first seal ring 7 made of rubber is disposed between the front housing body 15 and the front portion 17.
　その後、メス端子１２をフロントハウジング本体１５の端子収容室１５ｃに挿入しながら、フロントハウジング本体１５をリヤハウジング１４の取付部１４ａに組み付ける。このとき、ゴムからなる第２シールリング８を挟みながらフック部１５ｂを係止凸部１４ｂに係止させて組み付けが終了する。 Thereafter, the front housing body 15 is assembled to the mounting portion 14a of the rear housing 14 while the female terminal 12 is inserted into the terminal accommodating chamber 15c of the front housing body 15. At this time, the hook portion 15b is locked to the locking convex portion 14b while sandwiching the second seal ring 8 made of rubber, and the assembly is completed.
　第１実施形態では、電線１１の端部の周囲に成形防水部６を一体成形するため、成形防水部６が電線１１の絶縁外皮１１ａに密着した状態となって電線１１と強固に結合される。このため、電線１１を伝う水を成形防水部６が遮断するため、水の侵入を確実に防止することができる。また、成形防水部６を含む電線１１をリヤハウジング１４と一体成形するため、成形防水部６がリヤハウジング１４と一体となって埋め込まれ、成形防水部６が電線１１に密着した状態を保持することができ、成形防水部６による水の侵入防止力が増大する。 In the first embodiment, since the molded waterproof portion 6 is integrally formed around the end of the electric wire 11, the molded waterproof portion 6 is in close contact with the insulating outer skin 11 a of the electric wire 11 and is firmly coupled to the electric wire 11. . For this reason, since the shaping | molding waterproof part 6 interrupts | blocks the water which transmits the electric wire 11, invasion of water can be prevented reliably. Further, since the electric wire 11 including the molded waterproof portion 6 is integrally formed with the rear housing 14, the molded waterproof portion 6 is embedded integrally with the rear housing 14, and the molded waterproof portion 6 is kept in close contact with the electric wire 11. This can increase the prevention of water penetration by the molded waterproof part 6.
　第１実施形態では、電線１１端部の周囲に成形防水部６を一体成形し、成形防水部６を含む電線１１をリヤハウジング１４と一体成形して防水構造とする。このため、防水のための部品点数が多くなることがなく、コネクタ２が大型化することがない。しかも、成形防水部６を電線１１と一体成形すると共に、リヤハウジング１４を一体成形するため、組み立て工程が少なくなり、製造が容易となる。 In the first embodiment, the molded waterproof part 6 is integrally formed around the end of the electric wire 11, and the electric wire 11 including the molded waterproof part 6 is integrally formed with the rear housing 14 to form a waterproof structure. For this reason, the number of parts for waterproofing does not increase, and the connector 2 does not increase in size. Moreover, since the molded waterproof portion 6 is integrally formed with the electric wire 11 and the rear housing 14 is integrally formed, the assembly process is reduced and the manufacture is facilitated.
［第２実施形態］
　図６―８は、第２実施形態を示す。第２実施形態では、電線１１の端部の周囲に一体成形される成形防水部６に対し、規制係合部２３を形成する。規制係合部２３は、成形防水部６の外面に凹み状に形成された係合溝２４から構成される。 [Second Embodiment]
6-8 show a second embodiment. In the second embodiment, the restriction engagement portion 23 is formed on the molded waterproof portion 6 that is integrally formed around the end of the electric wire 11. The restricting engagement portion 23 is configured by an engagement groove 24 formed in a concave shape on the outer surface of the molded waterproof portion 6.
　規制係合部２３としての係合溝２４は、電線１１の長さ方向と交差する方向に形成される。第２実施形態では、係合溝２４は、電線１１の長さ方向と直交するように成形防水部６の外面に形成されている。係合溝２４は、成形防水部６の長さ方向（図６―８における上下方向）の中間部分に形成されており、成形防水部６は係合溝２４を挟んだ状態となっている。係合溝２４は、電線１１の絶縁外皮１１ａに達するような深さに形成されている。 The engaging groove 24 as the restricting engaging portion 23 is formed in a direction crossing the length direction of the electric wire 11. In the second embodiment, the engagement groove 24 is formed on the outer surface of the molded waterproof part 6 so as to be orthogonal to the length direction of the electric wire 11. The engaging groove 24 is formed in an intermediate portion in the length direction (vertical direction in FIGS. 6-8) of the molded waterproof part 6, and the molded waterproof part 6 is in a state of sandwiching the engaging groove 24. The engagement groove 24 is formed to a depth that reaches the insulating outer skin 11 a of the electric wire 11.
　規制係合部２３としての係合溝２４を形成した成形防水部６を用いてリヤハウジング１４を一体成形すると、リヤハウジング１４成形の保圧時や冷却時における成形防水部６のずれを防止することができる。 When the rear housing 14 is integrally formed by using the molded waterproof part 6 in which the engagement groove 24 as the restricting engagement part 23 is formed, the molded waterproof part 6 is prevented from being displaced at the time of holding or cooling the rear housing 14. be able to.
　すなわち、成形防水部６のエラストマー（熱硬化性エラストマー）と、リヤハウジング１４の樹脂とは材料が異なり、熱膨張率が異なるため、リヤハウジング１４の成形の際の収縮率が異なっている。この収縮率の相違によって成形防水部６に応力が作用するため、リヤハウジング１４の一体成形時に電線１１に対して成形防水部６が位置ずれする場合がある。このような成形防水部６のずれが生じると、防水性が低下する。これに対し、第２実施形態のように、成形防水部６に係合溝２４を形成した場合には、リヤハウジング１４を成形する樹脂が係合溝２４内に入り込み、樹脂の入り込み状態で硬化するため、成形防水部６が定位置に固定された状態となる。従って、成形防水部６が、リヤハウジング１４との相対移動することが規制されて、電線１１の定位置からずれることがなくなる。このため、成形防水部６による防水性が低下することを防止することができる。 That is, since the elastomer (thermosetting elastomer) of the molded waterproof portion 6 and the resin of the rear housing 14 are made of different materials and have different thermal expansion coefficients, the shrinkage rate when the rear housing 14 is molded is different. Since stress acts on the molded waterproof part 6 due to the difference in shrinkage rate, the molded waterproof part 6 may be displaced with respect to the electric wire 11 when the rear housing 14 is integrally formed. When such a shift | offset | difference of the shaping | molding waterproof part 6 arises, waterproofness will fall. On the other hand, when the engaging groove 24 is formed in the molded waterproof part 6 as in the second embodiment, the resin forming the rear housing 14 enters the engaging groove 24 and is cured in the resin entering state. For this reason, the molded waterproof part 6 is fixed in place. Accordingly, the molded waterproof portion 6 is restricted from moving relative to the rear housing 14 and is not displaced from the fixed position of the electric wire 11. For this reason, it can prevent that the waterproofness by the shaping | molding waterproof part 6 falls.
　なお、規制係合部２３としては、溝ではなく、突起を成形防水部６に形成するものであっても良い。 It should be noted that the restricting engagement portion 23 may be a protrusion formed on the molded waterproof portion 6 instead of a groove.
［第３実施形態］
　図９は、第３実施形態の防水構造１に用いられるコネクタ２を示す。 [Third Embodiment]
FIG. 9 shows a connector 2 used in the waterproof structure 1 of the third embodiment.
　第２実施形態のコネクタ２では、電線１１として同軸ケーブルが用いられる。その他の構成は第１実施形態と同様であり、図１と同一の部材には同一の符号を付して対応させてある。 In the connector 2 of the second embodiment, a coaxial cable is used as the electric wire 11. Other configurations are the same as those of the first embodiment, and the same members as those in FIG.
　同軸ケーブルからなる電線１１は、内側導体３１と、内側導体３１の外周に絶縁内皮を介して外側導体３２が配置され、外側導体３２の外周に絶縁外皮３３が被覆されることにより形成されている。電線１１では、皮剥きされることにより内側導体３１及び外側導体３２が引き出されており、内側導体３１及び外側導体３２の端部に板状端子３がそれぞれ接続される。 An electric wire 11 made of a coaxial cable is formed by arranging an inner conductor 31, an outer conductor 32 on the outer periphery of the inner conductor 31 via an insulating inner skin, and covering the outer periphery of the outer conductor 32 with an insulating outer shell 33. . In the electric wire 11, the inner conductor 31 and the outer conductor 32 are drawn by being peeled, and the plate-like terminals 3 are connected to the end portions of the inner conductor 31 and the outer conductor 32, respectively.
　そして、内側導体３１及び外側導体３２の端部を含む部分に対して成形防水部６が一体成形される。内側導体３１及び外側導体３２は相互に離れる方向に引き出されているため、成形防水部６はこれらの周囲を囲む導体覆い部３５と、電線１１の内側導体３１及び外側導体３２の引き出し部分（端部）の周囲を囲む端部覆い部３６が一体的に形成された形状に成形される。 Then, the molded waterproof part 6 is integrally formed with respect to the part including the ends of the inner conductor 31 and the outer conductor 32. Since the inner conductor 31 and the outer conductor 32 are drawn out in directions away from each other, the molded waterproof portion 6 has a conductor covering portion 35 surrounding them, and a lead-out portion (end) of the inner conductor 31 and the outer conductor 32 of the electric wire 11. Part covering part 36 is formed into a shape in which it is integrally formed.
　成形防水部６は、内側導体３１及び外側導体３２と、これらの引き出し部分（端部）と、板状端子３とをモールド型内にセットした状態で熱硬化性エラストマーを注入して硬化する一体成形することにより形成される。成形防水部６を成形した後に、第１実施形態と同様に、電線１１における成形防水部６を含む部分に対してリヤハウジング１４を一体成形する。 The molded waterproof part 6 is an integral body in which a thermosetting elastomer is injected and cured in a state where the inner conductor 31 and the outer conductor 32, their lead portions (ends), and the plate-like terminal 3 are set in a mold. It is formed by molding. After the molded waterproof part 6 is molded, the rear housing 14 is integrally molded with respect to the part including the molded waterproof part 6 in the electric wire 11 as in the first embodiment.
　第３実施形態では、同軸ケーブルからなる電線１１の端部の周囲に成形防水部６を一体成形するため、成形防水部６が電線１１に密着した一体状態となって強固に結合される。このため、電線１１を伝う水を成形防水部６が遮断して、水の侵入を確実に防止することができる。また、成形防水部６を含む電線１１をリヤハウジング１４と一体成形するため、成形防水部６がリヤハウジング１４と一体となって埋め込まれ、成形防水部６が電線１１に密着した状態を保持することができ、成形防水部６による水の侵入防止力が増大する。 In the third embodiment, since the molded waterproof portion 6 is integrally formed around the end portion of the electric wire 11 made of a coaxial cable, the molded waterproof portion 6 is firmly bonded in an integrated state in close contact with the electric wire 11. For this reason, the molded waterproofing part 6 interrupts | blocks the water which propagates the electric wire 11, and can prevent the penetration | invasion of water reliably. Further, since the electric wire 11 including the molded waterproof portion 6 is integrally formed with the rear housing 14, the molded waterproof portion 6 is embedded integrally with the rear housing 14, and the molded waterproof portion 6 is kept in close contact with the electric wire 11. This can increase the prevention of water penetration by the molded waterproof part 6.
　第３実施形態においても、電線１１の端部の周囲に成形防水部６を一体成形し、この成形防水部６を含む電線１１をリヤハウジング１４と一体成形して防水構造とする。このため、防水のための部品点数が多くなることがなく、コネクタ２が大型化することがない。しかも、成形防水部６を電線１１と一体成形すると共に、リヤハウジング１４を一体成形するため、組み立て工程が少なくなり、製造が容易となる。 Also in the third embodiment, the molded waterproof portion 6 is integrally formed around the end portion of the electric wire 11, and the electric wire 11 including the molded waterproof portion 6 is integrally formed with the rear housing 14 to form a waterproof structure. For this reason, the number of parts for waterproofing does not increase, and the connector 2 does not increase in size. Moreover, since the molded waterproof portion 6 is integrally formed with the electric wire 11 and the rear housing 14 is integrally formed, the assembly process is reduced and the manufacture is facilitated.
　なお、第３実施形態においても、第２実施形態の規制係合部２３を成形防水部６に形成しても良く、これにより成形防水部６のずれを防止できるため、防水性の低下を防止することができる。 In the third embodiment as well, the restriction engagement portion 23 of the second embodiment may be formed on the molded waterproof portion 6, thereby preventing the molded waterproof portion 6 from being displaced, thereby preventing a decrease in waterproofness. can do.
　図１０は、電線１１として同軸ケーブルを用いた場合の変形例を示す。図１０では、外側導体３２に接続される板状端子３に筒状の接続端３７が一体形成されている。接続端３７を皮剥きされて露出した外側導体３２に外挿し、圧着や超音波接合して接続端３７を外側導体３２に接続する。これにより、内側導体３１と外側導体３２とが略同方向に引き出される。電線１１の端部の周囲を囲む成形防水部６は、端部覆い部３６が接続端３７を囲むような大径となって形成される。 FIG. 10 shows a modification when a coaxial cable is used as the electric wire 11. In FIG. 10, a cylindrical connection end 37 is integrally formed with the plate-like terminal 3 connected to the outer conductor 32. The connection end 37 is extrapolated to the exposed outer conductor 32 which is peeled off, and the connection end 37 is connected to the outer conductor 32 by crimping or ultrasonic bonding. Thereby, the inner conductor 31 and the outer conductor 32 are pulled out in substantially the same direction. The formed waterproof part 6 surrounding the periphery of the end of the electric wire 11 is formed to have a large diameter such that the end cover part 36 surrounds the connection end 37.
　本発明は以上の実施形態に限定されることなく、種々変形が可能である。以上の実施形態では、成形防水部６を電線１１の端部の周囲に一体成形しているが、端部だけでなく電線１１に対し成形防水部６を長く形成しても良い。また、板状端子３のメス端子側接続部３ｃをメス端子１２に圧着した後、これらを溶接しているが、圧着することなくこれらを溶接するだけであっても良い。 The present invention is not limited to the above embodiment, and various modifications are possible. In the above embodiment, the molded waterproof part 6 is integrally formed around the end of the electric wire 11, but the molded waterproof part 6 may be formed longer with respect to the electric wire 11 as well as the end. Moreover, after crimping the female terminal side connection part 3c of the plate-shaped terminal 3 to the female terminal 12, these are welded, However, These may be welded without crimping.
　本発明によれば、部品点数が多くなることなく、組み立て工程を簡単とすることが可能で、コネクタが大型化することのない防水構造を提供することができる。 According to the present invention, it is possible to simplify the assembly process without increasing the number of parts, and it is possible to provide a waterproof structure without increasing the size of the connector.

Claims (4)

  1. 　電力制御用電気機器と、電線の端部とを接続するコネクタに用いられ、このコネクタ内への水の浸入を防止するコネクタの防水構造であって、
    　前記電線の端部に接続された板状端子と、
    　前記板状端子が収容されるリヤハウジングを有するリヤコネクタと、
    　前記リヤコネクタに組み付けられ前記板状端子と接続されると共に、前記電力制御用電気機器側の相手端子と接続される箱状のメス端子が収容されるフロントコネクタと
    を備え、
    　前記電線の周囲からの水の侵入を防止する成形防水部を少なくとも前記電線の周囲に一体成形し、
    　前記成形防水部を含む前記電線を前記リヤハウジングと一体成形する
    ことを特徴とするコネクタの防水構造。     It is used for a connector that connects an electric power control device and an end of an electric wire, and is a waterproof structure for a connector that prevents water from entering the connector,
    A plate-like terminal connected to an end of the electric wire;
    A rear connector having a rear housing in which the plate-like terminal is accommodated;
    A front connector that is assembled to the rear connector and connected to the plate-like terminal, and that houses a box-shaped female terminal connected to a counterpart terminal on the power control electric device side,
    A molded waterproof part that prevents intrusion of water from around the electric wire is integrally formed at least around the electric wire,
    A waterproof structure for a connector, wherein the electric wire including the molded waterproof portion is formed integrally with the rear housing.
  2. 　請求項１記載のコネクタの防水構造であって、
    　前記成形防水部には、前記リヤハウジングとの相対移動を規制する規制係合部が形成されている
    ことを特徴とするコネクタの防水構造。     The waterproof structure of the connector according to claim 1,
    A waterproof structure for a connector, wherein a restriction engaging portion for restricting relative movement with the rear housing is formed in the molded waterproof portion.
  3. 　請求項１又は２記載のコネクタの防水構造であって、
    　前記電線に接続された板状端子と、前記メス端子とが溶接されている
    ことを特徴とするコネクタの防水構造。     The waterproof structure of the connector according to claim 1 or 2,
    A waterproof structure for a connector, wherein a plate-like terminal connected to the electric wire and the female terminal are welded.
  4. 　電力制御用電気機器と、電線の端部とを接続するコネクタに用いられ、このコネクタ内への水の浸入を防止するコネクタの製造方法であって、
    　少なくとも前記電線の周囲に電線の周囲からの水の侵入を防止する成形防水部を一体成形した後に、この成形防水部を成形した状態で前記リヤハウジングと一体成形し、
    　前記板状端子と前記メス端子とを溶接し、
    　前記メス端子を収容するフロントハウジングを前記リヤハウジングに組み付ける
    ことを特徴とする製造方法。     A method for manufacturing a connector that is used in a connector that connects an electric power control device and an end of an electric wire, and prevents water from entering the connector,
    After integrally forming a molded waterproof part that prevents water from entering from around the electric wire at least around the electric wire, the molded waterproof part is molded integrally with the rear housing,
    Welding the plate terminal and the female terminal;
    A manufacturing method comprising assembling a front housing for accommodating the female terminal to the rear housing.
PCT/JP2013/079562 2013-10-31 2013-10-31 Connector waterproof structure and method for manufacturing same WO2015063926A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0845627A (en) * 1994-07-27 1996-02-16 Yazaki Corp Junction connector
JP2006236873A (en) * 2005-02-28 2006-09-07 Yazaki Corp Terminal metal fitting and its manufacturing method
JP2009252712A (en) * 2008-04-11 2009-10-29 Yazaki Corp Waterproof connector and method for manufacturing same
WO2011019026A1 (en) * 2009-08-10 2011-02-17 矢崎総業株式会社 Thermoplastic elastomer resin composition and connector
JP2013232367A (en) * 2012-05-01 2013-11-14 Yazaki Corp Waterproof structure of connector and method of manufacturing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0845627A (en) * 1994-07-27 1996-02-16 Yazaki Corp Junction connector
JP2006236873A (en) * 2005-02-28 2006-09-07 Yazaki Corp Terminal metal fitting and its manufacturing method
JP2009252712A (en) * 2008-04-11 2009-10-29 Yazaki Corp Waterproof connector and method for manufacturing same
WO2011019026A1 (en) * 2009-08-10 2011-02-17 矢崎総業株式会社 Thermoplastic elastomer resin composition and connector
JP2013232367A (en) * 2012-05-01 2013-11-14 Yazaki Corp Waterproof structure of connector and method of manufacturing the same

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