JP2003109702A - Oiltight and watertight structure of terminal - Google Patents
Oiltight and watertight structure of terminalInfo
- Publication number
- JP2003109702A JP2003109702A JP2001305161A JP2001305161A JP2003109702A JP 2003109702 A JP2003109702 A JP 2003109702A JP 2001305161 A JP2001305161 A JP 2001305161A JP 2001305161 A JP2001305161 A JP 2001305161A JP 2003109702 A JP2003109702 A JP 2003109702A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- oil
- terminal fitting
- electric wire
- fitting
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、特に電気自動車搭
載のモータの入出力端子、あるいは一般電子電気機器の
入出力端子に電線・ケーブルやワイヤハーネス（以下、
電線と総称する）を接続する部分の端子防油水構造に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire / cable or a wire harness (hereinafter
The present invention relates to a terminal oil-proof and water-proof structure of a portion for connecting electric wires).
【０００２】[0002]
【従来の技術】機器の外板ケースに電気コネクタを介し
て電線を引き込み、電線の端末に圧着した端子金具を機
器側の入出力端子に接続して電気的導通を図る構造で
は、電線を引き込む部分の外板ケースの引き込み口から
雨水などが浸入しないよう防水性を確保して機器を保護
する必要がある。2. Description of the Related Art In a structure in which an electric wire is drawn into an outer case of a device through an electric connector, and a terminal metal fitting crimped to the end of the electric wire is connected to an input / output terminal on the device side for electrical conduction, the electric wire is drawn. It is necessary to ensure the waterproofness and protect the equipment so that rainwater, etc. does not enter from the inlet of the outer case.
【０００３】図６は、機器へのそうした電線引き込み部
分における従来の端子防水構造を示す側面断面図であ
る。機器筐体である外板ケース１に設けた電線引き込み
口（孔）２に、端子防油水構造を備えた樹脂製のハウジ
ング３が嵌合して固定される。筒状のハウジング本体３
ａの前部を電線引き込み口２に嵌合させ、そのハウジン
グ本体３ａにフランジ形に設けた固定座３ｂを外板ケー
ス１の外面に押し当てるように密着させて固定する。ま
た、ハウジング本体３ａの内部に隔壁３ｃが設けてあ
り、この隔壁３ｃの中央部に電線５を挿通させて外板ケ
ース１の内部に引き込む。電線５は、端末の絶縁体５ｂ
など絶縁被覆材を皮剥ぎ処理して露出させ、その露出状
態の導体５ａに端子金具６がかしめ部６ａでかしめ加工
して圧着されている。端子金具６の先端接続部に設けた
接続孔６ｂにボルトなどを通し、機器側の入出力端子と
締結して電気的導通を図る構造である。FIG. 6 is a side sectional view showing a conventional waterproof structure of a terminal in such a wire drawing portion into a device. A resin housing 3 having a terminal oil / water proof structure is fitted and fixed to an electric wire lead-in port (hole) 2 provided in an outer plate case 1 which is a device housing. Cylindrical housing body 3
The front part of a is fitted into the wire lead-in port 2, and a fixing seat 3b provided in a flange shape on the housing main body 3a is pressed against the outer surface of the outer plate case 1 so as to be fixed thereto. Further, a partition wall 3c is provided inside the housing body 3a, and the electric wire 5 is inserted through the central portion of the partition wall 3c and drawn into the outer plate case 1. The electric wire 5 is the insulator 5b of the terminal.
The insulating coating material is peeled off to be exposed, and the conductor 5a in the exposed state is crimped by crimping the terminal metal fitting 6 at the crimping portion 6a. The structure is such that a bolt or the like is passed through a connection hole 6b provided at a tip connection portion of the terminal fitting 6 and is fastened to an input / output terminal on the device side for electrical conduction.
【０００４】その場合、電線引き込み口２から外板ケー
ス１内に雨水などの浸入を防ぐため、外板ケース１の外
面に押し当ててハウジング本体３ａ側の固定座３ｂとの
間の両部材間の防水性をシール部材であるＯ−リング４
で確保し、ハウジング本体３ａ内の隔壁３ｃとここを挿
通する電線５との間の防水性はシール部材であるゴム製
で筒状のパッキン６で確保している。In this case, in order to prevent rainwater or the like from entering the outer case 1 through the wire lead-in port 2, the outer case of the outer case 1 is pressed against the housing 3a and the fixed seat 3b. O-ring 4 as a sealing member
The waterproof property between the partition wall 3c in the housing body 3a and the electric wire 5 inserted therethrough is ensured by the rubber-made tubular packing 6 which is a sealing member.
【０００５】一方、図７もまた端子防水構造の他の従来
例を示す側面断面図である。図６の構造と同様に、機器
の外板ケース１に設けた電線引き込み口２に、電気コネ
クタの本体を構成する樹脂製ハウジング８を筒状の本体
８ａの前部を嵌合させ、固定座８ｂを外板ケース１の外
面に押し当てて固定する。筒状のハウジング本体８ａの
後端は塞がっていて、この後端壁の中央部に電線５を挿
通させて外板ケース１の内部に引き込む。電線５の端末
の導体５ａには端子金具６が圧着されているが、その圧
着部で露出状態の導体５ａと端子金具６を埋め込むよう
にして、ハウジング本体８ａの内部空洞にエポキシ系、
ウレタン系、あるいはシリコン系のいずれかの樹脂をシ
ール材９ｂとして充填することにより封止（ポッティン
グ）している。接続孔６ｂを有する端子金具６の先端部
は、そうしたハウジング本体８ａ側の樹脂ポッティング
部から外板ケース１の内側に突出した形で機器側入出力
端子に臨んでいる。On the other hand, FIG. 7 is also a side sectional view showing another conventional example of the terminal waterproof structure. Similar to the structure of FIG. 6, the resin housing 8 constituting the main body of the electrical connector is fitted to the electric wire lead-in port 2 provided on the outer plate case 1 of the device, and the front portion of the cylindrical main body 8a is fitted to the fixed seat. 8b is pressed and fixed to the outer surface of the outer plate case 1. The rear end of the cylindrical housing body 8a is closed, and the electric wire 5 is inserted through the central portion of the rear end wall and drawn into the outer plate case 1. The terminal metal fitting 6 is crimped to the conductor 5a at the end of the electric wire 5, and the conductor 5a and the terminal metal fitting 6 in an exposed state are embedded in the crimping portion so that the epoxy-based resin is placed in the inner cavity of the housing body 8a.
Sealing (potting) is performed by filling urethane or silicon resin as the sealing material 9b. The tip of the terminal fitting 6 having the connection hole 6b faces the device-side input / output terminal in such a manner as to project from the resin potting portion on the housing body 8a side to the inside of the outer case 1.
【０００６】[0006]
【発明が解決しようとする課題】ところで、上記図６お
よび図７に示す端子防油水構造の従来例のいずれにあっ
ても次の点に問題がある。まず、図６の構造の場合、端
子金具６を圧着した電線５の導体５ａが剥き出しのまま
で機器の外板ケース１の内側に臨んでいる点である。機
器がモータなどの場合、潤滑油などの油類とか水滴が剥
き出し状態の導体５ａを伝い、外板ケース１の外部に漏
洩して他機材に対して諸々の不都合を与える。それを防
ぐ対策に高コストを要してしまう。加えて、機器側から
の油類がＡＴＦ油の場合、それに対応する電線５の絶縁
体５ｂの材質としては高価なフッ素系のものが要求さ
れ、電線５の使用が制限されてしまう不都合がある。However, any of the conventional examples of the terminal oil / water resistant structure shown in FIGS. 6 and 7 has the following problems. First, in the case of the structure of FIG. 6, the conductor 5a of the electric wire 5 to which the terminal fitting 6 is crimped faces the inside of the outer case 1 of the device while being exposed. When the device is a motor or the like, oil such as lubricating oil or water droplets travels through the bare conductor 5a and leaks to the outside of the outer plate case 1 to give various inconveniences to other devices. High cost is required to prevent it. In addition, when the oil from the device side is ATF oil, an expensive fluorinated material is required as the material of the insulator 5b of the electric wire 5 corresponding thereto, and there is a disadvantage that the use of the electric wire 5 is restricted. .
【０００７】一方、図７の構造の場合は、ハウジング本
体８ａ内にシール材９ｂを充填する樹脂ポッティング封
止作業は、シール材９ｂが硬化し終えるまでに長く時間
がかかり、封止終了までにおよそ１日を要することがあ
る。そのため、その間半製品としてストックするスペー
スの確保を必要とするなど不都合がある。加えて、この
例で示す電線５，ケーブルおよびワイヤハーネスなどの
製造を終えた工程で樹脂ポッティング工程が加わるので
作業工程を複雑にする。また、重要な問題点であるが、
厳しい使用環境下において振動や外力が加わるとシール
材９ｂが剥離したり、劣化などするために長期にわたっ
て防水性を確保しがたい。On the other hand, in the case of the structure shown in FIG. 7, the resin potting sealing work for filling the sealing material 9b into the housing body 8a takes a long time until the sealing material 9b is completely hardened, and the sealing is completed. It may take about a day. Therefore, there is an inconvenience such as the need to secure a space for stocking as a semi-finished product during that period. In addition, since the resin potting process is added in the process of manufacturing the electric wire 5, the cable, the wire harness and the like shown in this example, the working process is complicated. Another important issue is
It is difficult to ensure waterproofness for a long period of time because the sealing material 9b peels off or deteriorates when vibration or external force is applied in a severe environment of use.
【０００８】以上から、本発明の目的は、端子金具を圧
着した部分の剥き出し状態の電線導体から油水が浸透し
て外部漏れを起こす不具合を解消でき、製造コストの低
減が可能となる端子防油水構造を提供することにある。From the above, the object of the present invention is to solve the problem that oil water permeates from the exposed wire conductor of the portion where the terminal fitting is crimped to cause external leakage, and the manufacturing cost can be reduced. To provide the structure.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、本発明にかかる請求項１に記載の端子防油水構造
は、機器の外板ケース１０に設けた電線引き込み口１１
から電線２０を引き込み、その電線２０端末の導体２１
にかしめ部２４で圧着した端子金具２３を機器側入出力
端子に接続する場合に、前記電線引き込み口１１に防油
水を確保して取り付けられる電気コネクタにおいて、前
記端子金具２３のかしめ部２４から前方へ平坦に延びる
接続部２６の一部に密着させて弾性材料による筒状のシ
ール部材２８を装着し、このシール部材装着部から前方
の接続部２６だけを前記電気コネクタの本体のハウジン
グ１２から突出させて、このハウジング１２と端子金具
２３との間の防油水性を前記シール部材２８で確保して
なっていることを特徴とする。In order to achieve the above object, the terminal oil-proof water structure according to claim 1 of the present invention is a wire lead-in port 11 provided in an outer case 10 of a device.
The electric wire 20 is pulled in from the electric wire 20 and the conductor 21 at the end of the electric wire 20
In the case of connecting the terminal fitting 23 crimped by the crimping portion 24 to the input / output terminal on the device side, in the electric connector to be attached to the electric wire lead-in port 11 while ensuring oil-proof water, the terminal fitting 23 is crimped forward from the crimping portion 24. A tubular seal member 28 made of an elastic material is attached to a portion of the connecting portion 26 that extends in a flat manner, and only the connecting portion 26 in front of the seal member attaching portion projects from the housing 12 of the main body of the electrical connector. The seal member 28 ensures oil-proof water resistance between the housing 12 and the terminal fitting 23.
【００１０】以上の構成から、機器の外板ケース１０の
外側から電線２０を伝って雨水などが浸入した場合でも
端子金具２３の端子シール装着部２５上に装着したシー
ル部材２８に阻止され、電気コネクタのハウジング１２
と端子金具２３との間の防水性が確保される。また、外
板ケース１０の内部で生じた潤滑油などの油類が端子金
具２３を伝ってケース外部に漏出しようとする場合、そ
の端子金具２３上のシール部材２８で阻止することによ
って防油性を確保する。特に、特殊な油類がケース外部
に漏出して電線２０の絶縁体２２などに付着して劣化な
どさせる不都合も回避できる。また、従来構造のよう
に、複雑な樹脂ポッティング工程など一切不要であり、
半製品状態でストックする必要もなくなるので、組立コ
ストや設備コストなどからなる製造コストを全般に低減
できる。With the above structure, even if rainwater or the like penetrates the electric wire 20 from the outside of the outer case 10 of the device, it is blocked by the seal member 28 mounted on the terminal seal mounting portion 25 of the terminal fitting 23, and the electric Connector housing 12
The waterproof property between the terminal fitting 23 and the terminal fitting 23 is ensured. Further, when oil such as lubricating oil generated inside the outer plate case 10 tries to leak through the terminal fitting 23 to the outside of the case, a sealing member 28 on the terminal fitting 23 prevents the oil to prevent oil. Secure. In particular, it is possible to avoid the inconvenience that special oils leak to the outside of the case and adhere to the insulator 22 of the electric wire 20 and deteriorate. Also, unlike the conventional structure, no complicated resin potting process is required,
Since it is not necessary to stock in a semi-finished product state, it is possible to reduce overall manufacturing costs such as assembly costs and equipment costs.
【００１１】また、請求項２に記載の端子防油水構造
は、前記端子金具２３の接続部２６の一部にその平坦な
断面よりも一回り小さく段付き成形した断面形状の端子
シール装着部２５を設けて、この端子シール装着部２５
上に前記シール部材２８を装着してなっていることを特
徴とする。According to the terminal oil-proof / water-proof structure of the second aspect, a terminal seal mounting portion 25 having a sectional shape formed by step-molding a part of the connecting portion 26 of the terminal fitting 23 is smaller than its flat sectional surface. The terminal seal mounting portion 25 is provided with
The seal member 28 is mounted on the top.
【００１２】以上の構成から、端子金具２３の接続部一
部に設けた端子シール装着部２５を段差成形しておけ
ば、そこに装着されたシール部材２８の抜脱防止に有効
である。With the above structure, if the terminal seal mounting portion 25 provided at a part of the connecting portion of the terminal fitting 23 is stepped, it is effective for preventing the sealing member 28 mounted therein from being pulled out.
【００１３】また、請求項３に記載の端子防油水構造
は、前記端子金具２３の端子シール装着部２５の角部を
円滑にＲ加工を施してなっていることを特徴とする。The terminal oil-proof water structure according to claim 3 is characterized in that a corner portion of the terminal seal mounting portion 25 of the terminal fitting 23 is smoothly rounded.
【００１４】以上の構成から、かかる端子シール装着部
２５の角部などを円滑にＲ加工することにより、装着さ
れたシール部材２８を傷めてそこから劣化が進むなどと
いった不具合が解消される。With the above-described structure, by smoothly rounding the corners of the terminal seal mounting portion 25, the problem that the mounted sealing member 28 is damaged and deteriorated from there is eliminated.
【００１５】[0015]
【発明の実施の形態】以下、本発明にかかる端子防油水
構造の実施の形態について、図面を参照して詳細に説明
する。図１は、本実施の形態の端子防油水構造を備えた
電気コネクタを示す組立側面断面図である。機器筐体を
構成する外板ケース１０に電線２０を挿通させて引き込
み、図示しない機器側の入出力端子に電線２０の端末を
端子金具２３によって接続して電気的導通を図る。外板
ケース１０の電線引き込み部分に電線引き込み口１１が
貫通して設けられ、この電線引き込み口１１に電気コネ
クタ本体を形成する樹脂製などのハウジング１２が嵌合
して取り付けられ、このハウジング１２を介して電線２
０を挿通させて外板ケース１０内に引き込む。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a terminal oil / water resistant structure according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is an assembled side cross-sectional view showing an electric connector provided with a terminal oil-proof water structure of the present embodiment. The electric wire 20 is inserted into and pulled out from the outer plate case 10 that constitutes the equipment casing, and the terminal of the electric wire 20 is connected to the input / output terminal (not shown) on the equipment side by the terminal fitting 23 to achieve electrical continuity. An electric wire lead-in port 11 is provided so as to penetrate the electric wire lead-in portion of the outer plate case 10, and a housing 12 made of resin or the like forming an electric connector body is fitted and attached to the electric wire lead-in port 11. Through the electric wire 2
Insert 0 and pull it into the outer case 10.
【００１６】図２（ａ），（ｂ）に示すように、電線２
０は、銅線などの導体２１上に絶縁体２２などで被覆を
施してなっている。その端末の絶縁体２２を皮剥ぎ処理
して導体２１を露出させ、露出した導体２１に端子金具
２３をかしめ部２４をかしめて圧着している。かかる端
子金具２３の詳しくは、かしめ部２４の前方部は平坦な
接続部２６となっており、そこに貫通した接続孔２７が
設けられている。この接続孔２７にいずれも図示しない
ボルトを通して機器側の入出力端子に締結して接続する
ようになっている。また、かしめ部２４と接続部２６と
の間の平坦な中間位置に端子シール装着部２５が設けら
れ、そこにゴム製の筒状パッキン２８が被着されるよう
になっている。端子シール装着部２５は、平坦な接続部
２６の長手方向の一部をプレス絞り加工などして一回り
小さい矩形断面に段付きプレス加工して設けられてい
る。図３は、端子シール装着部２５上にパッキン２８を
密着させて被着させた状態の端子金具２３を示してい
る。As shown in FIGS. 2 (a) and 2 (b), the electric wire 2
In No. 0, a conductor 21 such as a copper wire is covered with an insulator 22 or the like. The conductor 22 is exposed by stripping the insulator 22 at the end, and the terminal metal fitting 23 is crimped to the exposed conductor 21 by crimping. More specifically, the terminal fitting 23 has a flat connecting portion 26 at the front portion of the caulking portion 24, and a connecting hole 27 penetrating therethrough is provided. Bolts (not shown) are connected to the connection holes 27 by fastening them to input / output terminals on the device side. Further, a terminal seal mounting portion 25 is provided at a flat intermediate position between the caulking portion 24 and the connecting portion 26, and a rubber tubular packing 28 is attached to the terminal seal mounting portion 25. The terminal seal mounting portion 25 is provided by stepwise press working a part of the flat connecting portion 26 in the longitudinal direction into a rectangular cross section that is one size smaller by press drawing or the like. FIG. 3 shows the terminal fitting 23 in a state where the packing 28 is adhered and adhered onto the terminal seal mounting portion 25.
【００１７】ここで、図４（ａ）〜（ｃ）は、かかる端
子金具２３において平坦な接続部２６の一部に上記端子
シール装着部２５を設ける成形工程を示している。図４
（ａ）は、接続部２６の一部を一回り小さい断面にプレ
ス打ち抜き加工などした段階の端子シール装着部２５を
示している。図４（ｂ）は、打ち抜き状態の端子シール
装着部２５を、上下一対の整形用金型３０，３２のキャ
ビティ３１，３３で両端部の角部を滑らかにするＲ加工
する状態を示している。Ｒ加工後の端子シール装着部２
５の両端部にはバリ３４，３５が生じているので、この
ままではパッキン２８装着時に傷めるおそれがある。し
たがって、次工程の図４（ｃ）に示すトリミング工程に
おいて、バリ３４，３５を適当な切除手段で除去する。
バリ３４，３５除去後の端子シール装着部２５を含む端
子金具２３を酸洗い工程において洗浄し、バリ面などを
円滑表面に仕上げてパッキン２８の被着に備える。Here, FIGS. 4A to 4C show a molding process in which the terminal seal mounting portion 25 is provided in a part of the flat connecting portion 26 in the terminal fitting 23. Figure 4
(A) shows the terminal seal mounting part 25 at a stage where a part of the connection part 26 is press punched into a slightly smaller cross section. FIG. 4B shows a state in which the punched-out terminal seal mounting portion 25 is R-processed so that the corner portions of both ends are smoothed by the cavities 31 and 33 of the pair of upper and lower shaping dies 30 and 32. . Terminal seal mounting part 2 after R processing
Since burrs 34 and 35 are formed at both end portions of 5, the packing 28 may be damaged when the packing 28 is mounted as it is. Therefore, in the next step, the trimming step shown in FIG. 4C, the burrs 34 and 35 are removed by an appropriate cutting means.
After removing the burrs 34, 35, the terminal fitting 23 including the terminal seal mounting portion 25 is washed in an acid washing step to finish the burr surface and the like into a smooth surface to prepare for the packing 28 to be attached.
【００１８】再び図１において、ハウジング１２は筒形
状の樹脂成形品であり、本体筒部１３の外周から鍔状に
張り出した固定座を機器筐体である外板ケース１０の外
面に押し当て、本体筒部１３の前部を外板ケース１０の
電線引き込み口１１に嵌合して固定するようになってい
る。固定座の内面にはシール部材としてＯ−リング１５
が装着され、外板ケース１０の外面との間の防水性を確
保している。また、本体筒部１３の前端部１６は塞がれ
てその中心に設けた貫通孔に上記端子金具２３の平坦な
接続部２６が挿通して外板ケース１０の内側へ突出し、
機器側入出力端子に接続可能となる位置に臨むように設
定されている。かかる本体筒部１３前部内に端子金具２
３の端子シール装着部２５上に被着させた本発明でいう
シール部材としてのパッキン２８が密着して収まり、端
子金具２３との間の防水性を確保している。Referring again to FIG. 1, the housing 12 is a tubular resin molded product, and the fixed seat protruding from the outer periphery of the main body tubular portion 13 in a brim shape is pressed against the outer surface of the outer plate case 10 which is a device casing. The front portion of the main body cylindrical portion 13 is fitted and fixed to the wire lead-in port 11 of the outer plate case 10. An O-ring 15 is used as a seal member on the inner surface of the fixed seat.
Is attached to ensure waterproofness between the outer case and the outer surface of the outer case 10. Further, the front end portion 16 of the main body tubular portion 13 is closed, and the flat connecting portion 26 of the terminal metal fitting 23 is inserted into a through hole provided at the center of the main tubular portion 13 to project inside the outer plate case 10,
It is set to face the position where it can be connected to the device side input / output terminal. The terminal fitting 2 is provided in the front part of the main body tubular portion 13.
The packing 28 as a sealing member according to the present invention, which is adhered to the terminal seal mounting portion 25 of No. 3, closely fits, and secures waterproofness with the terminal metal fitting 23.
【００１９】さらに、ハウジング１２の本体筒部１３の
後部では係止孔１７が設けられ、次に述べるリテーナ３
０をその係止孔１７で固定するようになっている。この
リテーナ３０もまた筒状の樹脂成形品であり、筒前端か
ら端子金具２３の平坦な端子シール装着部２５と接続部
２６を突出させた形で、後部のかしめ部２４とこのかし
め部２４に圧着された電線２０の導体２１を含む導体圧
着部を含む電線端末部を位置決めして保持している。Further, a locking hole 17 is provided in the rear portion of the main body cylindrical portion 13 of the housing 12, and the retainer 3 described next is provided.
0 is fixed by the locking hole 17. This retainer 30 is also a cylindrical resin molded product, and the flat terminal seal mounting portion 25 and the connecting portion 26 of the terminal fitting 23 are projected from the front end of the cylinder so that the rear caulking portion 24 and the caulking portion 24 are joined together. The electric wire end portion including the conductor crimping portion including the conductor 21 of the crimped electric wire 20 is positioned and held.
【００２０】その場合にリテーナ３０は、筒体３１の前
端に内部から端子金具２３に圧着された露出導体２１の
先端面を突き当てるようになっており、筒体３１の後端
を塞いで設けたフランジ部３２の中心上を電線２２が貫
通して挿通できるよう形成されている。In this case, the retainer 30 is designed so that the front end of the exposed conductor 21 crimped from the inside to the terminal fitting 23 is abutted against the front end of the tubular body 31, and the rear end of the tubular body 31 is closed. The electric wire 22 is formed so that it can be inserted through the center of the flange portion 32.
【００２１】以上の構成により、本実施の形態による端
子防油水構造は次のように組み立てられて作用する。な
お、組立手順は一例を示すものでそれに限定されない。
機器筐体である外板ケース１０の電線引き込み口１１か
らの組み込みに備えて、電線２０の端末では露出処理し
た導体２１に端子金具２３がかしめ部２４でかしめて圧
着されている。また、かしめ作業の前後で端子シール装
着部２５にはシール部材としてパッキン２８も被着され
ている。With the above construction, the terminal oil-proof water structure according to this embodiment is assembled and operates as follows. It should be noted that the assembling procedure shows an example and is not limited thereto.
In preparation for assembly of the outer plate case 10 which is a device casing from the wire lead-in port 11, the terminal metal fitting 23 is crimped and crimped by the crimping portion 24 to the exposed conductor 21 at the end of the electric wire 20. A packing 28 is also attached to the terminal seal mounting portion 25 as a seal member before and after the caulking work.
【００２２】端子シール装着部２５は一回り小さい断面
形状で他部とは段差があるので、そこに被着させたパッ
キン２８は抜脱を防ぐのに有効に作用する。また、パッ
キン２８はコルゲートチューブ形状のものが示されてい
る。図４（ａ）〜（ｃ）のＲ加工トリミング工程におい
て端子シール装着部２５の表面は円滑仕上げがなされて
いるが、仮にマクロ的にみて表面粗さに凹凸があるよう
な場合でも、山部と谷部からなる上記パッキン２８がそ
うした表面の端子シール装着部２５に馴染んで密着でき
るように工夫されている。Since the terminal seal mounting portion 25 has a slightly smaller cross-sectional shape and has a step different from the other portions, the packing 28 adhered thereto effectively acts to prevent removal. Further, the packing 28 is shown in the shape of a corrugated tube. Although the surface of the terminal seal mounting portion 25 is smoothly finished in the R processing trimming process of FIGS. 4A to 4C, even if the surface roughness is uneven as viewed macroscopically, the mountain portion The packing 28, which is composed of a trough and a trough, is designed so that the packing 28 fits well to the surface of the terminal seal mounting portion 25.
【００２３】次いで、リテーナ３０の内部に端子金具２
３の平坦な端子シール装着部２５と接続部２６がリテー
ナ前方を突出した形となるよう、リテーナ３０の内部に
端子金具２３のかしめ部２４とその後方の電線２２の端
末部を収容して保持させる。Next, the terminal fitting 2 is placed inside the retainer 30.
3 retains the crimped portion 24 of the terminal fitting 23 and the end portion of the electric wire 22 behind the crimped portion 24 inside the retainer 30 so that the flat terminal seal mounting portion 25 and the connecting portion 26 of FIG. Let
【００２４】そのように端子金具２３のかしめ部２４と
電線２２を保持した状態のリテーナ３０をハウジング１
２に後方から挿入して押し込む。このリテーナ押し込み
によって、端子金具２３の接続部２６をハウジング１２
の前部端１６から突出させ、端子シール装着部２５上に
被着させたパッキン２８をハウジング１２の前部内に押
し込んで密着させる。この押し込み動作でリテーナ３０
は係止爪３３がハウジング１２側の係止孔１７に節度感
（クリック感）を伴ってワンタッチで係合し、リテーナ
３０がハウジング１２から抜脱しないようにリテーナ３
０を介して電線２０および端子金具２３を保持した形に
する。The retainer 30 holding the caulked portion 24 of the terminal fitting 23 and the electric wire 22 in this manner is used as the housing 1
Insert from the back into 2 and push in. By pushing in the retainer, the connecting portion 26 of the terminal fitting 23 is moved to the housing 12
The packing 28, which is made to project from the front end 16 of the above and is attached on the terminal seal mounting portion 25, is pushed into the front portion of the housing 12 to be brought into close contact therewith. This pushing operation causes the retainer 30
The locking claw 33 engages with the locking hole 17 on the housing 12 side with one-touch with a click feeling, and the retainer 3 is prevented from coming off the housing 12.
The electric wire 20 and the terminal metal fitting 23 are held via 0.
【００２５】ここまでの一式の端子防油水構造を電気コ
ネクタとして機器側の外板ケース１０の組み付けてセッ
トする場合、電線引き込み口１１にハウジング１２の前
部を嵌合させ、固定座１４を機器筐体１０の外面に押し
当ててＯ−リング１５を密着させることにより、外板ケ
ース１０と電気コネクタ側ハウジング１２との間の防水
性を確保する。When the above set of terminal oil-and-water structure is used as an electrical connector by assembling and setting the outer plate case 10 on the device side, the front portion of the housing 12 is fitted into the wire lead-in port 11 and the fixed seat 14 is attached to the device. The O-ring 15 is pressed against the outer surface of the housing 10 so that the O-ring 15 is in close contact with the housing 10, so that the waterproof property between the outer plate case 10 and the electric connector side housing 12 is ensured.
【００２６】本実施の形態にかかる端子金具２３として
は、上記のような目的で段付き加工した端子シール装着
部２５を設けてなっている。それに対して、図５に示す
ように、先端部の接続部と区別のないフラットバー形に
して特別な端子シール装着部を設けることなく、長手方
向の適所にパッキン２８を装着する形態も初期の目的を
達成できる意味で可能である。ただし、この場合もその
ようにストレートなフラットバー形にして成形された接
続部２６の両端部に滑らかなＲ加工を施しておくことは
必須条件である。しかし、パッキン２８の抜脱防止など
の面からは図２（ａ）の段付き成形が好ましいことは明
らかである。As the terminal fitting 23 according to the present embodiment, the terminal seal mounting portion 25 which is stepped for the above-mentioned purpose is provided. On the other hand, as shown in FIG. 5, the configuration in which the packing 28 is attached at a proper position in the longitudinal direction without providing a special terminal seal attachment portion in the shape of a flat bar which is indistinguishable from the connection portion of the tip end is also in the initial stage. It is possible in the sense that the purpose can be achieved. However, also in this case, it is an essential condition that both ends of the connecting portion 26 formed in such a straight flat bar shape are subjected to smooth R processing. However, it is apparent that the stepped molding shown in FIG. 2A is preferable in terms of preventing the packing 28 from coming off.
【００２７】[0027]
【発明の効果】以上説明したように、本発明にかかる請
求項１に記載の端子防油水構造は、機器の外板ケースの
外側から電線を伝って雨水などが浸入した場合でも端子
金具の端子シール装着部上に装着したシール部材に阻止
され、電気コネクタのハウジングと端子金具との間の防
水性が確保される。また、外板ケースの内部で生じた潤
滑油などの油類が端子金具を伝ってケース外部に漏出し
ようとする場合、端子金具上のシール部材で阻止して防
油性を確保する。特に、特殊な油類がケース外部に漏出
して電線の絶縁体などに付着して劣化などさせる不都合
も回避できる。また、従来構造のように、複雑な樹脂ポ
ッティング工程など一切不要であり、半製品状態でスト
ックする必要もなくなるので、組立コストや設備コスト
などからなる製造コストを全般に低減できる。As described above, the terminal oil-proof water structure according to the first aspect of the present invention has the terminal of the terminal fitting even when rainwater or the like enters from the outside of the outer case of the device along the electric wire. The seal member mounted on the seal mounting portion prevents the seal member from waterproofing between the housing of the electric connector and the terminal fitting. Further, when oil such as lubricating oil generated inside the outer plate case tries to leak to the outside of the case through the terminal fitting, the sealing member on the terminal fitting prevents the oil from ensuring oil resistance. In particular, it is possible to avoid the inconvenience that special oils leak to the outside of the case and adhere to the insulator of the electric wire and deteriorate. Further, unlike the conventional structure, a complicated resin potting process is not required at all, and it is not necessary to stock in a semi-finished product state, so that manufacturing costs such as assembly cost and facility cost can be reduced in general.
【００２８】また、請求項２に記載の端子防油水構造
は、端子金具の接続部一部に設けた端子シール装着部を
段差成形してあるので、そこに装着されたシール部材の
抜脱防止に有効である。Further, in the terminal oil-proof water structure according to the second aspect, since the terminal seal mounting portion provided in a part of the connecting portion of the terminal fitting is formed in steps, the sealing member mounted therein is prevented from being pulled out. Is effective for.
【００２９】また、請求項３に記載の端子防油水構造
は、端子シール装着部の角部などを円滑にＲ加工するこ
とにより、装着されたシール部材を傷めてそこから劣化
が進むなどといった不具合が回避できる。Further, in the terminal oil-proof water structure according to the third aspect of the invention, the corners of the terminal seal mounting portion are smoothly rounded to damage the mounted sealing member and deteriorate from there. Can be avoided.
【図１】本発明にかかる実施の形態の端子防油水構造を
備えた電気コネクタを機器側外板ケースに取り付けた状
態を示す組立側面断面図である。FIG. 1 is an assembled side sectional view showing a state in which an electric connector having a terminal oil and water proof structure according to an embodiment of the present invention is attached to a device side outer case.
【図２】同図（ａ），（ｂ）は、本構造要旨部材である
端子金具を示す斜視図と、矢印Ａ−Ａからの断面による
端子金具要部の端子シール装着部を示す縦断面図であ
る。2 (a) and 2 (b) are perspective views showing a terminal metal fitting which is the essential member of the present structure, and a vertical cross section showing a terminal seal mounting portion of a main portion of the terminal metal fitting taken along the line AA. It is a figure.
【図３】同端子シール装着部上にパッキン装着状態を示
す組立斜視図である。FIG. 3 is an assembled perspective view showing a packing mounting state on the terminal seal mounting portion.
【図４】同図（ａ）〜（ｃ）は同端子シール装着部をＲ
加工トリミング工程を順に示す断面図である。4 (a) to 4 (c) are views showing the terminal seal mounting portion with an R
It is sectional drawing which shows a process trimming process in order.
【図５】端子シール装着部の別の形態例を示す斜視図で
ある。FIG. 5 is a perspective view showing another example of the terminal seal mounting portion.
【図６】端子防水構造の従来例を示す組立側面断面図で
ある。FIG. 6 is an assembled side sectional view showing a conventional example of a terminal waterproof structure.
【図７】別の端子防水構造を示す組立側面断面図であ
る。FIG. 7 is an assembled side sectional view showing another terminal waterproof structure.
１０： 機器側外板ケース １１： 電線引き込み口 １２： 電気コネクタのハウジング １３： 本体筒部 １５： Ｏ−リング １７： リテーナ用係止孔 ２０： 電線 ２１： 導体 ２２： 絶縁体 ２３： 端子金具 ２４： かしめ部 ２５： 端子シール装着部 ２６： 接続部 ２７： ボルト孔 ２８： パッキン（シール部材） 10: Equipment side outer case 11: Wire entry port 12: Electrical connector housing 13: Body tube 15: O-ring 17: Retainer locking hole 20: Electric wire 21: Conductor 22: Insulator 23: Terminal fitting 24: Caulking section 25: Terminal seal mounting part 26: Connection part 27: Bolt hole 28: Packing (seal member)
フロントページの続き Ｆターム(参考） 5E087 EE06 FF02 FF13 LL02 LL03 LL12 MM05 QQ04 RR12 RR25 5H605 AA02 BB01 BB05 BB17 CC06 EC01 EC04 EC05 EC08 EC18 GG03 GG04 GG06 GG12 GG18 GG20 Continued front page F term (reference) 5E087 EE06 FF02 FF13 LL02 LL03 LL12 MM05 QQ04 RR12 RR25 5H605 AA02 BB01 BB05 BB17 CC06 EC01 EC04 EC05 EC08 EC18 GG03 GG04 GG06 GG12 GG18 GG20
Claims (3)
口から電線を引き込み、その電線端末の導体にかしめ部
で圧着した端子金具を機器側入出力端子に接続する場合
に、前記電線引き込み口に防油水を確保して取り付けら
れる電気コネクタの端子防油水構造であって、 前記端子金具のかしめ部から前方へ平坦に延びる接続部
の一部に密着させて弾性材料による筒状のシール部材を
装着し、このシール部材装着部から前方の接続部だけを
前記電気コネクタの本体のハウジングから突出させて、
このハウジングと端子金具との間の防油水性を前記シー
ル部材で確保してなっていることを特徴とする端子防油
水構造。1. An electric wire lead-in port when an electric wire is drawn in from an electric wire lead-in port provided in an outer case of a device, and a terminal metal fitting crimped to a conductor of the electric wire end by a caulking portion is connected to a device-side input / output terminal. A terminal oil-proof water structure of an electric connector that can be attached while ensuring oil-proof water, in which a tubular seal member made of an elastic material is brought into close contact with a part of a connecting portion that extends flatly forward from the crimped portion of the terminal fitting. Mounted, projecting only the connecting portion in front of the seal member mounting portion from the housing of the main body of the electric connector,
A terminal oil-proof water structure, wherein oil-proof water between the housing and the terminal fitting is secured by the seal member.
な断面よりも一回り小さく段付き成形した断面形状の端
子シール装着部を設けて、この端子シール装着部上に前
記シール部材を装着してなっていることを特徴とする請
求項１に記載の端子防油水構造。2. A terminal seal mounting portion having a stepped shape that is slightly smaller than the flat cross section is provided in a part of the connection portion of the terminal fitting, and the sealing member is mounted on the terminal seal mounting portion. The terminal oil-proof water structure according to claim 1, wherein the terminal oil-proof water structure is attached.
を円滑にＲ加工を施してなっていることを特徴とする請
求項２に記載の端子防油水構造。3. The terminal oil-proof water structure according to claim 2, wherein a corner portion of the terminal seal mounting portion of the terminal fitting is smoothly rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001305161A JP4020358B2 (en) | 2001-10-01 | 2001-10-01 | Terminal oil-proof water structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001305161A JP4020358B2 (en) | 2001-10-01 | 2001-10-01 | Terminal oil-proof water structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003109702A true JP2003109702A (en) | 2003-04-11 |
| JP4020358B2 JP4020358B2 (en) | 2007-12-12 |
Family
ID=19124992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001305161A Expired - Fee Related JP4020358B2 (en) | 2001-10-01 | 2001-10-01 | Terminal oil-proof water structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4020358B2 (en) |
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| JPH09245880A (en) * | 1996-03-12 | 1997-09-19 | Sumitomo Wiring Syst Ltd | Relay connector |
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| JPH07130426A (en) * | 1993-11-04 | 1995-05-19 | Sumitomo Wiring Syst Ltd | Waterproof connector |
| JPH09147963A (en) * | 1995-11-24 | 1997-06-06 | Yazaki Corp | Connector waterproof mounting structure |
| JPH09245880A (en) * | 1996-03-12 | 1997-09-19 | Sumitomo Wiring Syst Ltd | Relay connector |
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