JP5029505B2 - Waterproof structure of connector connection - Google Patents

Waterproof structure of connector connection Download PDF

Info

Publication number
JP5029505B2
JP5029505B2 JP2008156847A JP2008156847A JP5029505B2 JP 5029505 B2 JP5029505 B2 JP 5029505B2 JP 2008156847 A JP2008156847 A JP 2008156847A JP 2008156847 A JP2008156847 A JP 2008156847A JP 5029505 B2 JP5029505 B2 JP 5029505B2
Authority
JP
Japan
Prior art keywords
connector
wire
protective tube
protective cover
waterproof structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2008156847A
Other languages
Japanese (ja)
Other versions
JP2009301943A (en
Inventor
直人 沢村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Wiring Systems Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Wiring Systems Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to JP2008156847A priority Critical patent/JP5029505B2/en
Priority to PCT/JP2008/071819 priority patent/WO2009153893A1/en
Priority to CN200880129851.9A priority patent/CN102099972B/en
Publication of JP2009301943A publication Critical patent/JP2009301943A/en
Application granted granted Critical
Publication of JP5029505B2 publication Critical patent/JP5029505B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H01R13/56—Means for preventing chafing or fracture of flexible leads at outlet from coupling part
    • 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
    • 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
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Details Of Indoor Wiring (AREA)

Description

本発明は、コネクタ接続部の防水構造に関し、詳しくは、ワイヤハーネス端末に接続されるコネクタにおいて、該コネクタとワイヤハーネスとの接続部からの浸水防止を図るものである。   The present invention relates to a waterproof structure of a connector connecting portion, and more specifically, in a connector connected to a wire harness terminal, it is intended to prevent water from entering from the connecting portion between the connector and the wire harness.

ワイヤハーネスを構成する電線群の端末にコネクタを接続している場合、コネクタの各端子収容室に各電線端末に接続した端子を挿入係止しているため、該端子収容室から引き出された電線を集束するまでの区間（所謂コネクタ首下部分）は、電線が扇状に広がった状態となる。よって、電線群を集束した部分に外装している防水用のチューブはコネクタ首下部分には被せることができない。
ワイヤハーネスに接続したコネクタを車両の被水領域に取り付ける場合、前記コネクタ首下部分を防水して、コネクタの端子収容室内への浸水防止を図る必要がある。
そのため、従来、図１０に示すように、コネクタ１のハウジング２の外面からコネクタ首下位置の電線群３の絶縁被覆部３ａまでを覆う保護カバー４が用いられている。 When the connector is connected to the terminal of the wire group constituting the wire harness, the terminal connected to each wire terminal is inserted and locked in each terminal receiving chamber of the connector, so that the wire drawn from the terminal receiving chamber The section until the two are converged (the so-called lower part of the connector neck) is in a state where the electric wires are fanned out. Therefore, the waterproof tube covering the part where the electric wire group is converged cannot be put on the lower part of the connector neck.
When a connector connected to a wire harness is attached to a wet area of a vehicle, it is necessary to prevent water from entering the terminal accommodating chamber of the connector by waterproofing the lower portion of the connector neck.
Therefore, conventionally, as shown in FIG. 10, a protective cover 4 is used that covers from the outer surface of the housing 2 of the connector 1 to the insulating coating portion 3 a of the wire group 3 at the connector neck position.

前記保護カバー４は、コネクタ１のハウジング２を収容するコネクタ収容部５と、該コネクタ１から引き出される電線群３の絶縁被覆部３ａを被覆する円筒状の電線引出部６とを弾性材で一体成形している（特開平６−１２４７４６号公報等）。   The protective cover 4 includes a connector housing portion 5 that houses the housing 2 of the connector 1 and a cylindrical wire lead portion 6 that covers the insulating coating portion 3a of the wire group 3 drawn from the connector 1 with an elastic material. It is molded (JP-A-6-124746, etc.).

この種の保護カバー４を用いる場合、集束した電線群３にも防水用の保護チューブ７を被せ、該保護チューブ７の先端を保護カバー４の電線引出部６に外嵌し、テープ８で一体に巻き付けて固定している。   When this type of protective cover 4 is used, the converged wire group 3 is also covered with a protective tube 7 for waterproofing, and the tip of the protective tube 7 is externally fitted to the wire lead-out portion 6 of the protective cover 4 and integrated with tape 8. It is wrapped around and fixed.

しかしながら、保護チューブ７の内径が小さい場合、電線引出部６への取り付けが困難となって作業性が悪くなる。一方、保護チューブ７の内径が大きい場合は、図１１（Ａ）に示すように、電線引出部６の外周面と保護チューブ７の内周面との間に隙間Ｓ１が生まれ、テープ巻き固定するまでに電線引出部６と保護チューブ７とが位置ズレしやすく、やはり作業性が悪い。また、保護チューブ７の内径が大きい場合は、電線引出部６にテープ８で巻き付け固定しても、図１１（Ｂ）に示すように、前記隙間Ｓ１によりテープ８の巻き付け状態がいびつになり、テープ８に生じる隙間Ｓ２から水が入り込みやすくなる、あるいは、隙間Ｓ１を押し潰すようにテープ８を巻き付けても、図１１（Ｃ）に示すように、押し潰された保護チューブ７の変形箇所とテープ８との間に新たな隙間Ｓ３ができてしまい、やはり水が浸入しやすくなる点で問題がある。   However, when the inner diameter of the protective tube 7 is small, it is difficult to attach the protective tube 7 to the wire lead-out portion 6 and workability is deteriorated. On the other hand, when the inner diameter of the protective tube 7 is large, a gap S1 is created between the outer peripheral surface of the wire lead-out portion 6 and the inner peripheral surface of the protective tube 7 as shown in FIG. By the time, the wire lead-out portion 6 and the protective tube 7 are easily misaligned, and the workability is also poor. When the inner diameter of the protective tube 7 is large, even if the wire drawing portion 6 is wound and fixed with the tape 8, as shown in FIG. 11B, the winding state of the tape 8 becomes distorted by the gap S1, Even if the tape 8 is wound around the gap S2 generated in the tape 8 or when the tape 8 is wound so as to crush the gap S1, as shown in FIG. There is a problem in that a new gap S3 is formed between the tape 8 and water easily enters.

特開平６−１２４７４６号公報JP-A-6-124746

本発明は前記問題に鑑みてなされたものであり、保護カバーと保護チューブとを用いたコネクタ接続部の防水構造において、保護カバーの円筒状の電線引出部への保護チューブの外嵌取付作業を容易化すると共に、防水性能を向上することを課題としている。   The present invention has been made in view of the above problems, and in the waterproof structure of the connector connecting portion using the protective cover and the protective tube, the external fitting work of the protective tube to the cylindrical wire lead-out portion of the protective cover is performed. It aims at making it easy and improving waterproof performance.

前記課題を解決するために、本発明は、電線群の端末にコネクタを接続し、該コネクタのハウジング外面から該コネクタの端子収容部から引き出されるコネクタ首下部分の前記電線群の外周面に、ディップ成形した保護カバーを被せている一方、前記電線群に保護チューブを被せており、
前記保護カバーの電線群を被覆する円筒状の電線引出部に、外方へ膨出する軸線方向に複数の突出部を一体的に設けている一方、前記保護チューブの内周長Ａ２と前記電線引出部の突出部を有する部分の外周長Ａ１とをＡ１≧Ａ２とし、
前記保護カバーの電線引出部に前記突出部を押し潰すように前記保護チューブを外嵌し、該嵌合部分の先端側で、前記保護チューブの外周側から前記保護カバーの電線引出部の外面にかけて粘着テープを巻き付けて固定していることを特徴とするコネクタ接続部の防水構造を提供している。 In order to solve the above-mentioned problem, the present invention connects a connector to the end of a wire group, and on the outer peripheral surface of the wire group at a connector neck lower part that is pulled out from the terminal housing portion of the connector from the housing outer surface of the connector. While covering a dip-molded protective cover, the wire group is covered with a protective tube,
A cylindrical wire lead-out portion covering the wire group of the protective cover is integrally provided with a plurality of protruding portions in the axial direction bulging outward, while the inner peripheral length A2 of the protective tube and the wire The outer peripheral length A1 of the portion having the protruding portion of the drawer portion is set to A1 ≧ A2,
The protective tube is externally fitted so as to squeeze the protruding portion into the electric wire extraction portion of the protective cover, and from the outer peripheral side of the protective tube to the outer surface of the electric wire extraction portion of the protective cover at the distal end side of the fitting portion. Provided is a waterproof structure for a connector connecting portion, characterized in that an adhesive tape is wound around and fixed.

このように、保護カバーの前記電線引出部に外方へ膨出する前記突出部を設け、電線引出部の突出部を有する部分の外周長Ａ１を保護チューブの内周長Ａ２以上とすることにより、保護チューブの内周面と前記突出部の先端部とを必ず接触させることができ、保護チューブを電線引出部に隙間なく外嵌することができる。
従って、保護カバーの電線引出部と保護チューブとの間から保護チューブ内および保護カバー内に水が浸入することを防止できる。また、保護チューブと電線引出部とをテープ巻き固定するときに保護チューブを押し潰す必要がないため、変形した保護チューブとテープとの間に隙間が発生することも防止でき、防水性を高めることができる。 In this way, by providing the protruding portion that bulges outward in the wire lead-out portion of the protective cover, the outer peripheral length A1 of the portion having the protruding portion of the wire lead-out portion is set to be equal to or greater than the inner peripheral length A2 of the protective tube. The inner peripheral surface of the protective tube and the tip of the protruding portion can be brought into contact with each other, and the protective tube can be externally fitted to the wire lead-out portion without any gap.
Accordingly, it is possible to prevent water from entering the protective tube and the protective cover from between the wire lead-out portion of the protective cover and the protective tube. In addition, since it is not necessary to crush the protective tube when the protective tube and the wire lead-out part are fixed with tape, it is possible to prevent a gap from being generated between the deformed protective tube and the tape, thereby improving the waterproof property. Can do.

さらに、保護チューブの内周面と前記突出部の先端部とは必ず接触して抵抗を得ることができるため、保護チューブと電線引出部とをテープ巻き固定するまでの間、保護チューブと電線引出部とが位置ずれしたり抜け外れることを防止できる。
さらにまた、保護チューブの内周面と前記突出部の先端部とが接触することにより、保護チューブの内周面と電線引出部の外周面とが面接触していた従来に比して接触面積が減少し、保護チューブ挿入時の摩擦抵抗も小さくなるため、保護チューブの電線引出部への外嵌挿入作業を容易に行うことができ、作業性を高めることができる。 Further, since the resistance can be obtained by always contacting the inner peripheral surface of the protective tube and the tip of the protruding portion, the protective tube and the wire lead-out are required until the protective tube and the wire lead-out portion are fixed with tape. It is possible to prevent the portion from being displaced or detached.
Furthermore, the contact area compared to the conventional case where the inner peripheral surface of the protective tube and the outer peripheral surface of the wire lead-out portion are in surface contact with each other due to the contact between the inner peripheral surface of the protective tube and the tip of the protruding portion. Since the frictional resistance at the time of inserting the protective tube is reduced, the external fitting insertion work of the protective tube to the wire lead-out portion can be easily performed, and the workability can be improved.

前記保護カバーの電線引出部に形成する突出部は環状凸部として、該環状凸部を軸線方向に一定ピッチで設け、前記電線引出部に蛇腹部を設けた形状としている。
あるいは、前記保護カバーの電線引出部に形成する突出部は半周状の凸部とし、該凸部を軸線方向に連続して設けている。
あるいは、前記保護カバーの電線引出部に形成する突出部は、周方向の一部に設けていると共に軸線方向に突出部を千鳥配置で設けている。 The protruding portion formed on the wire lead-out portion of the protective cover is an annular convex portion, and the annular convex portion is provided at a constant pitch in the axial direction, and the electric wire leading portion is provided with a bellows portion.
Or the protrusion part formed in the electric wire drawer | drawing-out part of the said protective cover is made into the semicircular convex part, and this convex part is provided continuously in the axial direction.
Or the protrusion part formed in the electric wire extraction part of the said protective cover is provided in a part of circumferential direction, and the protrusion part is provided in zigzag arrangement in the axial direction.

前記電線群に接続するコネクタが被水領域に配置されるものであれば、四輪車または二輪車のいずれにも適用できる。   As long as the connector connected to the electric wire group is disposed in the wet area, it can be applied to either a four-wheeled vehicle or a two-wheeled vehicle.

上述したように、本発明によれば、保護カバーの電線引出部に、押し潰し変形可能な突出部を外方に膨出させ、かつ、電線引出部の前記突出部を有する部分の外周長Ａ１と保護チューブの内周長Ａ２をＡ１≧Ａ２としているため、保護チューブの内周面は必ず前記突出部の先端部に弾性接触し、保護チューブの内周面と電線引出部の外周面との隙間を該突出部で埋めることができる。従って、保護チューブを電線引出部に隙間なく外嵌することができ、保護カバー内および保護チューブ内への水の浸入を確実に防止することができる。   As described above, according to the present invention, the protruding portion that can be crushed and deformed is bulged outwardly in the wire drawing portion of the protective cover, and the outer peripheral length A1 of the portion of the wire drawing portion that has the protruding portion. Since the inner peripheral length A2 of the protective tube is A1 ≧ A2, the inner peripheral surface of the protective tube is always in elastic contact with the tip of the protruding portion, and the inner peripheral surface of the protective tube and the outer peripheral surface of the wire lead-out portion The gap can be filled with the protrusion. Therefore, the protective tube can be externally fitted to the wire lead-out portion without any gap, and water can be reliably prevented from entering the protective cover and the protective tube.

また、保護カバーの電線引出部に保護チューブをテープで巻き付け固定するとき、保護チューブを押しつぶして隙間を埋める必要がないため、押し潰された保護チューブとテープとの間に水の浸入経路となる隙間が発生することも防止できる。
さらに、保護チューブの内周面は前記突出部の先端部と必ず接触して抵抗を得ることができるため、保護チューブを電線引出部にテープで固定するまでの間、保護チューブと電線引出部の位置ずれや抜け外れを防止でき、作業性を高めることができる。
さらにまた、前記突出部により、保護チューブの内周面と電線引出部の外周面との接触面積が減り、摩擦抵抗を小さくすることができると共に、該突出部は押し潰し変形可能であるため、保護チューブの電線引出部への外嵌挿入作業を容易に行うことができる。 In addition, when the protective tube is wrapped around and fixed to the wire lead-out part of the protective cover with tape, it is not necessary to crush the protective tube to fill the gap, so that it becomes a water infiltration path between the crushed protective tube and the tape. It is also possible to prevent a gap from occurring.
Furthermore, since the inner peripheral surface of the protective tube can always be brought into contact with the tip of the protruding portion to obtain resistance, until the protective tube is fixed to the wire drawing portion with tape, Misalignment and disconnection can be prevented, and workability can be improved.
Furthermore, the projecting portion reduces the contact area between the inner peripheral surface of the protective tube and the outer peripheral surface of the wire lead-out portion, can reduce the frictional resistance, and the projecting portion can be crushed and deformed. The external fitting insertion work to the electric wire extraction part of a protection tube can be performed easily.

以下、本発明の実施形態を図面を参照して説明する。
いずれの実施形態も、被水領域である自動車のエンジンルームに配索される電線群１０の端末にコネクタ１５を接続し、該コネクタ１５と電線群１０との接続部の防水構造に本発明を適用している。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In any of the embodiments, the connector 15 is connected to the terminal of the electric wire group 10 arranged in the engine room of the automobile that is the flooded area, and the present invention is applied to the waterproof structure of the connection portion between the connector 15 and the electric wire group 10. Applicable.

図１乃至図４に、本発明の第１実施形態を示す。
コネクタ１５と電線群１０との接続部には、図１（Ａ）に示すように、コネクタ１５のハウジング１６の外面から、該コネクタ１５の各端子収容部（図示せず）から引き出される電線１１が集束されるまでの扇状に広がったコネクタ首下部分にかけて保護カバー２０を被せている。
前記コネクタ１５と接続される各電線１１は、芯線１１ａを絶縁被覆部１１ｂで被覆した丸電線からなり、コネクタに挿入する端末には絶縁被覆部１１ｂを剥離して露出させた端子（図示せず）を圧着接続している。これら電線は集束して、塩化ビニル製の保護チューブ３０に挿通して防水している。 1 to 4 show a first embodiment of the present invention.
As shown in FIG. 1A, the connecting portion between the connector 15 and the wire group 10 is an electric wire 11 drawn from each terminal accommodating portion (not shown) of the connector 15 from the outer surface of the housing 16 of the connector 15. The protective cover 20 is placed over the lower part of the connector neck that is spread in a fan shape until the two are converged.
Each electric wire 11 connected to the connector 15 is a round electric wire in which a core wire 11a is covered with an insulating covering portion 11b. A terminal (not shown) is exposed by peeling off the insulating covering portion 11b at a terminal to be inserted into the connector. ). These electric wires are converged and inserted into a protective tube 30 made of vinyl chloride for waterproofing.

前記保護カバー２０は、図２（Ａ）に示すように、塩化ビニルでディップ成形してなる両端開口の筒体よりなる。該保護カバー２０は、コネクタ１５のハウジング１６を収容する四角筒状のコネクタ収容部２１と、電線群１０のコネクタ首下部分を被覆する円筒状の電線引出部２２とを、円錐状の連結部２３を介して軸線方向に連続一体に成形している。   As shown in FIG. 2 (A), the protective cover 20 is formed of a cylindrical body having both ends opened by dip molding with vinyl chloride. The protective cover 20 includes a rectangular cylindrical connector housing portion 21 that houses the housing 16 of the connector 15, and a cylindrical wire lead-out portion 22 that covers a connector neck lower portion of the wire group 10. 23 is formed integrally in the axial direction through 23.

前記電線引出部２２の軸線方向中央部には、内周面側から外周面側へ向けて一体的に膨出した断面逆Ｖ形状の環状凸部からなる突出部２４を、軸線方向に複数連続させて設けてなる蛇腹部２５を形成している。前記突出部２４は可撓性を備え、変形可能に形成している。   A plurality of projecting portions 24 each including an annular convex portion having an inverted V-shaped cross section that bulges integrally from the inner peripheral surface side toward the outer peripheral surface side are continuously provided in the axial center portion of the wire lead-out portion 22 in the axial direction. A bellows portion 25 is provided. The protrusion 24 is flexible and can be deformed.

図２（Ｂ）に示すように、前記電線引出部２２の突出部２４を有する部分の外周長Ａ１は、保護チューブ３０の内周長Ａ２よりも大きく設定している。   As shown in FIG. 2B, the outer peripheral length A <b> 1 of the portion having the protruding portion 24 of the wire lead-out portion 22 is set larger than the inner peripheral length A <b> 2 of the protective tube 30.

前記保護チューブ３０を保護カバー２０の電線引出部２２に外嵌するときは、図３（Ａ）に示すように、蛇腹部２５の各突出部２４を押し潰しながら保護チューブ３０を挿入する。図３（Ｂ）に示すように、保護チューブ３０の先端部３１を蛇腹部２５の奥端２６に到達させる。最後に、図１および図４に示すように、保護カバー２０の電線引出部２２の外周面２７から保護チューブ３０の外周面にかけて粘着テープ３５を巻き付けて固定している。   When the protective tube 30 is externally fitted to the wire lead-out portion 22 of the protective cover 20, the protective tube 30 is inserted while crushing each protrusion 24 of the bellows portion 25 as shown in FIG. As shown in FIG. 3B, the distal end portion 31 of the protective tube 30 is made to reach the back end 26 of the bellows portion 25. Finally, as shown in FIGS. 1 and 4, an adhesive tape 35 is wound and fixed from the outer peripheral surface 27 of the wire lead-out portion 22 of the protective cover 20 to the outer peripheral surface of the protective tube 30.

このように、保護カバー２０の電線引出部２２に、外方へ膨出する前記突出部２４を形成し、該電線引出部２２の突出部２４を有する部分の外周長Ａ１を保護チューブ３０の内周長Ａ２以下に設定することにより、図１（Ａ）（Ｂ）に示すように、保護チューブ３０の内周面３２と前記突出部２４の突出端部２４ａとを常に接触させることができる。従って、保護チューブ３０の内周面３２と電線引出部２２の外周面２７との間の隙間２８を前記突出部２４によって埋めることができ、保護カバー２０内や保護チューブ３０内に水が浸入することを確実に防止することができる。   In this way, the protruding portion 24 that bulges outward is formed in the wire lead-out portion 22 of the protective cover 20, and the outer peripheral length A1 of the portion having the protruding portion 24 of the wire lead-out portion 22 is set within the protective tube 30. By setting it to the circumference A2 or less, as shown in FIGS. 1A and 1B, the inner peripheral surface 32 of the protective tube 30 and the protruding end 24a of the protruding portion 24 can always be brought into contact with each other. Accordingly, the gap 28 between the inner peripheral surface 32 of the protective tube 30 and the outer peripheral surface 27 of the wire lead-out portion 22 can be filled with the protruding portion 24, and water enters the protective cover 20 and the protective tube 30. This can be surely prevented.

また、粘着テープ３５を巻き付けるとき、前記隙間２８を埋めるために保護チューブ３０を押し潰し変形させる必要がないため、変形した保護チューブ３０と粘着テープ３５との間に水の浸入経路となる隙間が発生することも防止できる。   Further, when the adhesive tape 35 is wound, there is no need to crush and deform the protective tube 30 in order to fill the gap 28, so that a gap serving as a water intrusion path is formed between the deformed protective tube 30 and the adhesive tape 35. Occurrence can also be prevented.

さらに、保護カバー２０の電線引出部２２に保護チューブ３０の外嵌挿入するとき、図３（Ａ）に示すように、保護チューブ３０の内周面３２は、電線引出部２２の外周面２７と面接触せず、突出部２４の突出端部２４ａと線接触するため、接触面積が少なく、摩擦抵抗も小さくなる。また、前記突出部２４は押し潰し変形可能に形成されている。従って、前記電線引出部２２への保護チューブ３０の挿入作業が容易となり、作業性を高めることができる。   Furthermore, when the protective tube 30 is externally inserted into the wire lead-out portion 22 of the protective cover 20, the inner peripheral surface 32 of the protective tube 30 is connected to the outer peripheral surface 27 of the wire lead-out portion 22 as shown in FIG. Since the surface does not come into contact with the protruding end 24a of the protruding portion 24, the contact area is small and the frictional resistance is also small. The protrusion 24 is formed so as to be crushed and deformed. Therefore, the work of inserting the protective tube 30 into the wire lead-out portion 22 is facilitated, and workability can be improved.

さらにまた、図３（Ｂ）に示すように、保護チューブ３０の内周面３２は必ず前記突出部２４の突出端部２４ａと接触して抵抗を得るため、保護チューブ３０と電線引出部２２とを粘着テープ３５で巻き付け固定するまでの間に、保護チューブ３０と電線引出部２２とが位置ずれしたり、抜け外れることを防止でき、この点からも作業性を高めることができる。   Furthermore, as shown in FIG. 3B, the inner peripheral surface 32 of the protective tube 30 always comes into contact with the protruding end portion 24a of the protruding portion 24 to obtain resistance, so that the protective tube 30 and the wire lead-out portion 22 The protective tube 30 and the wire lead-out portion 22 can be prevented from being displaced or detached before the wire is wound and fixed with the adhesive tape 35. From this point, workability can be improved.

図５および図６に本発明の第２実施形態を示す。
保護カバー２０の電線引出部２２の軸線方向中央部に、環状凸部からなる突出部２４を軸線方向に一定ピッチをあけて複数設けてなる蛇腹部２５を形成し、該蛇腹部２５の断面形状を鋸刃状としている。 5 and 6 show a second embodiment of the present invention.
A bellows portion 25 is formed at the central portion in the axial direction of the wire lead-out portion 22 of the protective cover 20. The bellows portion 25 is formed by providing a plurality of projecting portions 24 each having an annular convex portion with a constant pitch in the axial direction. Is a saw blade.

詳しくは、各突出部２４の保護チューブ挿入側面２４ｂを保護チューブ３０の挿入方向にテーパー状に傾斜させる一方、反挿入側面２４ｃは軸線方向に対して略垂直に立設している。その他の構成は前記第１実施形態と同一としている。   Specifically, the protection tube insertion side surface 24b of each protrusion 24 is inclined in a taper shape in the insertion direction of the protection tube 30, while the anti-insertion side surface 24c is erected substantially perpendicular to the axial direction. Other configurations are the same as those in the first embodiment.

これにより、図６（Ａ）に示すように、前記突出部２４は保護チューブ３０の挿入方向には押し倒れやすいが、図６（Ｂ）に示すように、保護チューブ３０の抜け方向には倒れにくいため、保護チューブ３０の前記電線引出部２２への取付作業を容易化できると共に、保護チューブ３０の抜け外れを規制できる構造とすることができる。   Thereby, as shown in FIG. 6A, the protrusion 24 is easily pushed down in the insertion direction of the protection tube 30, but as shown in FIG. 6B, it falls down in the removal direction of the protection tube 30. Since it is difficult to attach the protective tube 30 to the wire lead-out portion 22, it is possible to make the structure capable of regulating the removal of the protective tube 30.

図７および図８に本発明の第３実施形態を示す。
保護カバー２０の電線引出部２２の軸線方向中央部に、半周状凸部からなる断面逆Ｖ形状の突出部２４を軸線方向に複数連続して設けている。
前記突出部２４は、図７（Ｂ）に示すように、その突出高さを周方向両端に向かって漸減させ、該両端部では電線引出部２２の外周面２７になめらかに連続させている。
また、前記突出部２４を有する部分の電線引出部２２の外周長Ａ１は、保護チューブ３０の内周長Ａ２以下に設定している。その他の構成は前記第１実施形態と同一構成としている。 7 and 8 show a third embodiment of the present invention.
A plurality of protrusions 24 having a reverse V-shaped cross section made of a semicircular convex portion are provided continuously in the axial direction at the central portion in the axial direction of the wire lead-out portion 22 of the protective cover 20.
As shown in FIG. 7B, the protruding portion 24 gradually decreases its protruding height toward both ends in the circumferential direction, and the both ends are smoothly connected to the outer peripheral surface 27 of the wire lead-out portion 22.
Further, the outer peripheral length A <b> 1 of the wire lead-out portion 22 of the portion having the protruding portion 24 is set to be equal to or shorter than the inner peripheral length A <b> 2 of the protective tube 30. Other configurations are the same as those in the first embodiment.

図９に本発明の第４実施形態を示す、
保護カバー２０の電線引出部２２の軸線方向中央部に、断面逆Ｖ形状の凸部を周方向に所要長さ連続させてなる突出部２４を、軸線方向に千鳥配置している。
前記突出部２４を有する部分の電線引出部２２の外周長Ａ１は、保護チューブ３０の内周長Ａ２以下に設定している。
その他の構成は前記第１実施形態と同一構成としている。 FIG. 9 shows a fourth embodiment of the present invention.
At the central portion in the axial direction of the wire lead-out portion 22 of the protective cover 20, the projecting portions 24 in which convex portions having a reverse V-shaped cross section are continuously provided in the circumferential direction are staggered in the axial direction.
The outer peripheral length A1 of the wire lead-out portion 22 of the portion having the protruding portion 24 is set to be equal to or shorter than the inner peripheral length A2 of the protective tube 30.
Other configurations are the same as those in the first embodiment.

前記第３実施形態および第４実施形態においても、図７（Ａ）（Ｂ）および図９（Ａ）（Ｂ）に示すように、保護チューブ３０の内周面３２と保護カバー２０の電線引出部２２の前記各突出部２４の突出端部２４ａとが接触する、よって、保護カバー２０の内周面３２と電線引出部２２の外周面２７との間の隙間２８を突出部２４によって埋めることができ、防水性を高めることができる。   Also in the third embodiment and the fourth embodiment, as shown in FIGS. 7A and 7B and FIGS. 9A and 9B, the inner peripheral surface 32 of the protective tube 30 and the wire lead-out of the protective cover 20 The protrusions 24 a of the protrusions 24 of the portion 22 come into contact with each other. Therefore, the protrusions 24 fill the gaps 28 between the inner peripheral surface 32 of the protective cover 20 and the outer peripheral surface 27 of the wire lead-out portion 22. Can improve waterproofness.

また、少なくとも前記電線引出部２２の前記各突出部２４の突出端部２４ａと保護チューブ３０の内周面３２とが接触することにより、抵抗を得て保護チューブ３０の位置ずれ等を防止できると共に、接触面積の減少により摩擦抵抗を小さくでき、保護チューブ３０の電線引出部２２への取付作業を容易化できる。   Further, at least the protruding end 24a of each protruding portion 24 of the wire lead-out portion 22 and the inner peripheral surface 32 of the protective tube 30 are in contact with each other, so that resistance can be obtained and displacement of the protective tube 30 can be prevented. By reducing the contact area, the frictional resistance can be reduced, and the work of attaching the protective tube 30 to the wire lead-out portion 22 can be facilitated.

本発明の第一実施形態に係るコネクタ接続部の防水構造を示し、（Ａ）は軸線方向断面図、（Ｂ）は（Ａ）のＢ−Ｂ線断面図である。The waterproof structure of the connector connection part which concerns on 1st embodiment of this invention is shown, (A) is an axial sectional view, (B) is a BB sectional drawing of (A). 保護カバーと保護チューブを示し、（Ａ）は斜視図、（Ｂ）は（Ａ）のＢ−Ｂ線断面図である。A protective cover and a protective tube are shown, (A) is a perspective view, (B) is a BB line sectional view of (A). （Ａ）（Ｂ）は保護チューブを保護カバーに外嵌する工程を示す説明断面図である。(A) (B) is explanatory sectional drawing which shows the process of fitting a protection tube on a protection cover. 保護カバーと保護チューブとをテープ巻き固定した状態を示す外観平面図である。It is an external appearance top view which shows the state which wound and fixed the protective cover and the protective tube. 第二実施形態に係るコネクタ接続部の防水構造を示す断面図である。It is sectional drawing which shows the waterproof structure of the connector connection part which concerns on 2nd embodiment. 図５に示す保護カバーの電線引出部の突出部の変形状態を示す要部断面図であり、（Ａ）は保護チューブを外嵌挿入するときの変形状態を示し、（Ｂ）は保護チューブに抜き方向の外力が加わったときの変形状態を示す。It is principal part sectional drawing which shows the deformation | transformation state of the protrusion part of the electric wire drawer | drawing-out part of the protective cover shown in FIG. 5, (A) shows a deformation | transformation state when a protection tube is externally inserted, (B) is a protection tube. The deformation state when an external force in the pulling direction is applied is shown. 第３実施形態に係るコネクタ接続部の防水構造を示し、（Ａ）は軸線方向断面図であり、（Ｂ）は（Ａ）のＢ−Ｂ線断面図である。The waterproof structure of the connector connection part which concerns on 3rd Embodiment is shown, (A) is an axial direction sectional drawing, (B) is a BB sectional drawing of (A). 第３実施形態に係る保護カバーを示す斜視図である。It is a perspective view which shows the protective cover which concerns on 3rd Embodiment. 第４実施形態に係るコネクタ接続部の防水構造を示し、（Ａ）は断面説明図であり、（Ｂ）は（Ａ）のＢ−Ｂ線断面図である。The waterproof structure of the connector connection part which concerns on 4th Embodiment is shown, (A) is a cross-sectional explanatory drawing, (B) is a BB sectional drawing of (A). 従来例を示す図である。It is a figure which shows a prior art example. （Ａ）（Ｂ）（Ｃ）は従来例の問題点を示す図である。(A) (B) (C) is a figure which shows the trouble of a prior art example.

符号の説明Explanation of symbols

１０ 電線群
１１ 電線
１１ａ 芯線
１１ｂ 絶縁被覆部
１５ コネクタ
１６ ハウジング
２０ 保護カバー
２２ 電線引出部
２４ 突出部
３０ 保護チューブ
３５ 粘着テープ DESCRIPTION OF SYMBOLS 10 Electric wire group 11 Electric wire 11a Core wire 11b Insulation coating | cover part 15 Connector 16 Housing 20 Protection cover 22 Electric wire extraction part 24 Projection part 30 Protection tube 35 Adhesive tape

Claims (5)

電線群の端末にコネクタを接続し、該コネクタのハウジング外面から該コネクタの端子収容部から引き出されるコネクタ首下部分の前記電線群の外周面に、ディップ成形した保護カバーを被せている一方、前記電線群に保護チューブを被せており、
前記保護カバーの電線群を被覆する円筒状の電線引出部に、外方へ膨出する軸線方向に複数の突出部を一体的に設けている一方、前記保護チューブの内周長Ａ２と前記電線引出部の突出部を有する部分の外周長Ａ１とをＡ１≧Ａ２とし、
前記保護カバーの電線引出部に前記突出部を押し潰すように前記保護チューブを外嵌し、該嵌合部分の先端側で、前記保護チューブの外周側から前記保護カバーの電線引出部の外面にかけて粘着テープを巻き付けて固定していることを特徴とするコネクタ接続部の防水構造。 While connecting the connector to the terminal of the wire group, the outer peripheral surface of the wire group of the lower part of the connector drawn from the terminal housing portion of the connector from the housing outer surface of the connector is covered with a dip-formed protective cover, Cover the wire group with a protective tube,
A cylindrical wire lead-out portion covering the wire group of the protective cover is integrally provided with a plurality of protruding portions in the axial direction bulging outward, while the inner peripheral length A2 of the protective tube and the wire The outer peripheral length A1 of the portion having the protruding portion of the drawer portion is set to A1 ≧ A2,
The protective tube is externally fitted so as to squeeze the protruding portion into the electric wire extraction portion of the protective cover, and from the outer peripheral side of the protective tube to the outer surface of the electric wire extraction portion of the protective cover at the distal end side of the fitting portion. A waterproof structure for a connector connecting portion, characterized in that an adhesive tape is wound around and fixed. 前記保護カバーの電線引出部に形成する突出部は環状凸部として、該環状凸部を軸線方向に一定ピッチで設け、前記電線引出部に蛇腹部を設けた形状としている請求項１に記載のコネクタ接続部の防水構造。   The protrusion part formed in the electric wire drawer part of the said protective cover is made into the shape which provided the annular convex part at a constant pitch in the axial direction as an annular convex part, and provided the bellows part in the said electrical wire drawer part. Waterproof structure for connector connection. 前記保護カバーの電線引出部に形成する突出部は半周状の凸部とし、該凸部を軸線方向に連続して設けている請求項１に記載のコネクタ接続部の防水構造。   The waterproof structure of the connector connecting portion according to claim 1, wherein the protruding portion formed in the wire lead-out portion of the protective cover is a semicircular convex portion, and the convex portion is continuously provided in the axial direction. 前記保護カバーの電線引出部に形成する突出部は、周方向の一部に設けていると共に軸線方向に突出部を千鳥配置で設けている請求項１に記載のコネクタ接続部の防水構造。   The waterproof structure of the connector connecting portion according to claim 1, wherein the protruding portion formed in the wire lead-out portion of the protective cover is provided in a part of the circumferential direction and the protruding portions are provided in a staggered arrangement in the axial direction. 前記電線群は四輪車または二輪車に配索され、前記コネクタは被水領域に配索されるものである請求項１乃至請求項４のいずれか１項に記載のコネクタ接続部の防水構造。   The waterproof structure for a connector connecting portion according to any one of claims 1 to 4, wherein the electric wire group is routed in a four-wheeled vehicle or a two-wheeled vehicle, and the connector is routed in a wet area.
JP2008156847A 2008-06-16 2008-06-16 Waterproof structure of connector connection Expired - Fee Related JP5029505B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2008156847A JP5029505B2 (en) 2008-06-16 2008-06-16 Waterproof structure of connector connection
PCT/JP2008/071819 WO2009153893A1 (en) 2008-06-16 2008-12-01 Waterproof construction of connector connection part
CN200880129851.9A CN102099972B (en) 2008-06-16 2008-12-01 Waterproof construction of connector connection part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008156847A JP5029505B2 (en) 2008-06-16 2008-06-16 Waterproof structure of connector connection

Publications (2)

Publication Number Publication Date
JP2009301943A JP2009301943A (en) 2009-12-24
JP5029505B2 true JP5029505B2 (en) 2012-09-19

Family

ID=41433820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008156847A Expired - Fee Related JP5029505B2 (en) 2008-06-16 2008-06-16 Waterproof structure of connector connection

Country Status (3)

Country Link
JP (1) JP5029505B2 (en)
CN (1) CN102099972B (en)
WO (1) WO2009153893A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101348159B1 (en) * 2012-10-04 2014-01-07 주식회사 유라코퍼레이션 High voltage shielded connector

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5557379B2 (en) * 2010-03-23 2014-07-23 矢崎総業株式会社 Connection structure of crimp terminal to wire
JP5545187B2 (en) * 2010-11-24 2014-07-09 住友電装株式会社 Protective material for wire harness
DE102011107859A1 (en) * 2011-07-01 2013-01-03 Achte Display System Gmbh lightbox
WO2013056451A1 (en) * 2011-10-20 2013-04-25 中联重科股份有限公司 Waterproof cover for wire harness protective tube and protective structure for wire harness connecting part
JP6245147B2 (en) * 2014-11-19 2017-12-13 株式会社オートネットワーク技術研究所 Wire with mold
JP6497302B2 (en) * 2015-11-19 2019-04-10 株式会社オートネットワーク技術研究所 Wiring member with mold part
JP6901365B2 (en) * 2017-09-29 2021-07-14 プライムアースＥｖエナジー株式会社 Connector cover and connector assembly
JP6717879B2 (en) * 2018-06-04 2020-07-08 住友電装株式会社 Protector
TWM583120U (en) * 2018-10-19 2019-09-01 進聯工業股份有限公司 Improved structure of protective cover for switch wiring device
JP7030731B2 (en) * 2019-02-27 2022-03-07 住友電装株式会社 Manufacturing method of sleeve and shield terminal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0737258Y2 (en) * 1989-11-07 1995-08-23 矢崎総業株式会社 Shielded wire terminal connector
JP3265952B2 (en) * 1995-10-23 2002-03-18 住友電装株式会社 Waterproof connector
JPH1050392A (en) * 1996-08-01 1998-02-20 Sumitomo Wiring Syst Ltd Case sealing structure
JP2007005018A (en) * 2005-06-21 2007-01-11 Tokai Rika Co Ltd Waterproof connector
CN2838073Y (en) * 2005-08-17 2006-11-15 高宏 Spread cable electric connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101348159B1 (en) * 2012-10-04 2014-01-07 주식회사 유라코퍼레이션 High voltage shielded connector

Also Published As

Publication number Publication date
CN102099972B (en) 2014-03-12
WO2009153893A1 (en) 2009-12-23
JP2009301943A (en) 2009-12-24
CN102099972A (en) 2011-06-15

Similar Documents

Publication Publication Date Title
JP5029505B2 (en) Waterproof structure of connector connection
JP5044508B2 (en) connector
US6162087A (en) Boot
US20030221850A1 (en) Shielded wire
EP1791222B1 (en) A resilient plug and a watertight connector
US20100300748A1 (en) Waterproof joint section forming method and wire harness provided with waterproof joint section formed by the method
US11404185B2 (en) Water-stop grommet and wire harness
JP6658443B2 (en) Conductive path
US8338708B2 (en) Electric junction box joint structure
US6231375B1 (en) Wire holding structure for connector housing
JP6424793B2 (en) Grommet and wire harness
JP5136259B2 (en) Protector for wire harness
JP6484597B2 (en) Waterproof structure of shield connector
JP3288217B2 (en) Rear holder and waterproof connector using this rear holder
JP5131134B2 (en) Rubber stopper and waterproof connector
JP2007259623A (en) Mold spacer for electric wire, connection kit for electric wire, and manufacturing method for electric wire, and electric wire
JP2007185067A (en) Flexible cable protection tube
JP4457862B2 (en) connector
US11367544B2 (en) Grommet and wire harness
JP2009187839A (en) Protection cap of terminal joint part
JP4495089B2 (en) Waterproof plug for connectors
JP2021013253A (en) Grommet, grommet water-stopping structure, and wire harness
JP2004014168A (en) Waterproof rubber plug and water proof connector
US20170225630A1 (en) Wire harness and wire harness manufacturing method
JP4245029B2 (en) Electric appliance

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20101117

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120529

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120611

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150706

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees