JP3654776B2 - connector - Google Patents

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JP3654776B2
JP3654776B2 JP26347898A JP26347898A JP3654776B2 JP 3654776 B2 JP3654776 B2 JP 3654776B2 JP 26347898 A JP26347898 A JP 26347898A JP 26347898 A JP26347898 A JP 26347898A JP 3654776 B2 JP3654776 B2 JP 3654776B2
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holder
connector
housing
rubber plug
insertion hole
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JP2000090910A (en
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光弘 松本
正博 出野
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Yazaki Corp
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Yazaki Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Description

【0001】
【発明の属する技術分野】
本発明は、コネクタハンジング内にゴム栓とリヤホルダとを嵌合状態で収容したコネクタに関し、特に、電気自動車等の車両に搭載される蓄電池の雄端子(バッテリポスト)にワンタッチで装着可能なコネクタに係わる。
【0002】
【従来の技術】
従来のコネクタが図5〜図7に示されている。図5は従来例のコネクタの分解斜視図、図6は同コネクタの組付け後の一部の斜視図、図7は同コネクタの背面図である。
【0003】
図5〜図7において、シールド電線30の端部にはコネクタ31が結合され、このコネクタ31が相手側のコネクタ(図示せず)に連結されることによって電気的接続がなされる。コネクタ31はコネクタハウジング32を有し、このコネクタハウジング32内には端子収容室(図示せず)が形成されている。この端子収容室の後面側には連続的にゴム栓挿通孔32a及びホルダ収容室32bが形成されている。コネクタハウジング32のホルダ収容室32bの箇所には複数の係合溝32cが設けられている。
【0004】
一方、前記シールド電線30は中心の芯線部30aとこれの外周を覆う絶縁内皮30bとこれの外周に配置された編組線30cとこれの外周を覆う絶縁外皮30dとから構成されており、シールド電線30の端部では芯線部30aと編組線30cが露出されている。そして、この露出した芯線部30aに円筒状の端子33が、編組線30cにシールド端子34が、それぞれ加締め等により固定され、円筒状の端子33は前記端子収容室に収容されている。
【0005】
ゴム栓35はリング状に形成されていて、その中央に電線挿入孔35aが形成されている。この電線挿入孔35aにシールド電線30が挿入されたゴム栓35がコネクタハウジング32のゴム栓挿通孔32aに嵌合状態で収容(以下内嵌という)されている。リヤホルダ36はリング状に形成されていてその中央に電線挿入孔36aが形成されていると共に、該リヤホルダ36の外周面には複数の係合突起36bが設けられている。電線挿入孔36aにシールド電線30が挿入されたリヤホルダ36がコネクタハウジング32のホルダ収容室32bに内嵌されている。この内嵌されたリヤホルダ36の係合突起36bはコネクタハウジング32の係合溝32cに係合されている。
【0006】
このように構成されたコネクタ31にあって、ゴム栓35によってコネクタ31の後面側からの水分のコネクタハウジング32内への浸入が阻止され、また、リヤホルダ36によってコネクタハウジング32の後面側からの外力による内部部品(例えば端子33等)の位置ずれ等が防止されている。
【0007】
尚、このコネクタ31に関する類似技術は、特開平6−203919号公報等に開示されている。
【0008】
【発明が解決しようとする課題】
しかしながら、前記従来のコネクタ31においては、コネクタハウジング32内のゴム栓挿通孔32aとホルダ収容室32bとが同じ径の円筒状に形成されているため、係合突起36bの係合力以上の外力がリヤホルダ36に作用するとリヤホルダ36がゴム栓挿通孔32aに入り込んでしまう可能性があった。尚、リヤホルダ36がゴム栓挿通孔32aに入り込むと、内部部品の位置ずれ等の不都合が生じる虞がある。
【0009】
そこで、本発明は、前記した課題を解決すべくなされたものであり、リヤホルダをコネクタハウジングのホルダ収容室内に確実に係止することができるコネクタを提供することを目的とする。
【0010】
【課題を解決するための手段】
請求項1の発明は、コネクタハウジング内に端子収容室とこの端子収容室に連続するゴム栓挿通孔及びこれにさらに連続するホルダ収容室を形成し、このゴム栓挿通孔にゴム栓を、ホルダ収容室にリヤホルダを、それぞれ嵌合状態で収容したコネクタにおいて、前記ゴム栓挿通孔を円筒状の空間で形成し、前記ホルダ収容室を角筒状の空間で形成し、前記ゴム栓挿通孔の内径に対して前記ホルダ収容室の最小内径を一致させたことを特徴とする。
【0011】
このコネクタでは、ホルダ収容室とゴム栓挿通孔との境界面であって、ホルダ収容室の最小内径以外の面にリヤホルダが当接するため、リヤホルダに外力が作用してもリヤホルダのゴム栓挿通孔方向への移動が阻止され、リヤホルダはホルダ収容室内に確実に係止される。また、ゴム栓挿通孔の内径に対してホルダ収容室の最小内径を一致させたので、ホルダ収容室を形成するコネクタハウジングの部分の外形寸法が小さくなる。
【0012】
請求項2の発明は、請求項1記載のコネクタであって、前記ホルダ収容室の角筒状の空間は、平面視で正方形であることを特徴とする。
【0013】
このコネクタでは、請求項1の発明の作用に加え、ホルダ収容室等を備えたコネクタハウジングの外形寸法が最も小さくなる。
【0014】
請求項3の発明は、請求項1又は2記載のコネクタであって、前記リヤホルダと前記コネクタハウジングとのいずれか一方には係合突起を、他方には係合孔をそれぞれ設けたことを特徴とする。
【0015】
このコネクタでは、請求項1又は2の発明の作用に加え、コネクタハウジングからのリヤホルダの脱落が確実に防止される。
【0016】
【発明の実施の形態】
以下、本発明の一実施形態を図面に基づいて説明する。
【0017】
図1は本発明の一実施形態に係るコネクタの分解斜視図、図2(a)はコネクタの平面図、図2(b)は同コネクタの正面図、図2(c)は同コネクタの左側面図、図3は図2(a)のA−A線に沿う断面図、図4は同コネクタのコネクタハウジングの要部の平面図である。
【0018】
図1〜図3に示すコネクタ1は図示しない電気自動車等の車両に搭載される蓄電池の雄端子(バッテリポスト)にワンタッチで接続されるものである。このコネクタ1の合成樹脂製のコネクタハウジング2は、上下方向に延びるハウジング本体2aと、このハウジング本体2aの側面より一体に突出して左右方向に延びているアーム体2bとを備えている。ハウジング本体2aの内部には円筒状の端子収容室3が、アーム体2bの内部には円筒状の電線端部収容室4が、それぞれ形成されており、端子収容室3と電線端部収容室4とは連通している。
【0019】
端子収容室3の下方はハウジング本体2aの下面より開口しており、この開口部より前記蓄電池の雄端子が挿入される。端子収容室3の上方にはゴム挿通孔5が連続して形成され、このゴム挿通孔5の上方にはさらに連続してホルダ収容室6が形成されている。このホルダ収容室6の上方はハウジング本体2aの上面より開口している。電線端部収容室4の右方はアーム体2bの側面より開口している。
【0020】
雌端子7は概略円柱状を有し、前記端子収容室3内に収容されている。この雌端子7の下部には上下方向に雄端子挿入孔7aが、雌端子7の上部には上下方向にネジ孔7bが、それぞれ形成されている。また、雌端子7の外周には係止溝7cが形成され、この係止溝7cにはハウジング本体2aの係止突起8が係止されている。この係止構造等によって雌端子7は端子収容室3内に固定されている。
【0021】
電線端部収容室4に収容される電線9は中央の電線部9aとこれの外周を覆う絶縁外皮9bとから構成され、電線9の端部では電線部9aが露出されている。この電線9の端部は前記電線端部収容室4内に収容されており、露出した電線部9aには接続金具10の一端側が例えば加締め等によって固定されている。この接続金具10の他端側は、この他端側の孔(特に符号を付さず)に挿入されたボルト11が雌端子7のネジ孔7bに螺入されることによって雌端子7に固定されている。つまり、電線9は接続金具10を介して雌端子7に電気的に接続されている。
【0022】
前記電線端部収容室4内の開口側にはゴム栓12とアーム側ホルダ13とが内嵌されており、このゴム栓12及びアーム側ホルダ13は共に中央に電線挿通孔12a,13aを有する円板状である。アーム側ホルダ13の外周には係合突起13bが設けられ、この係合突起13bはアーム体2bの係合孔14に係合されている。この係合構造等によってアーム側ホルダ13は位置決めされ、且つ固定されている。
【0023】
フロントホルダ15は有底円筒状を成し、前記ハウジング本体2aの下部に嵌合されている。フロントホルダ15の底部には雄端子挿入口15aが形成されている。フロントホルダ15がハウジング本体2aに嵌合されることでハウジング本体2aの拡径方向の変位が規制され、これによって係止突起8が係止溝7cより外れないようになっている。また、フロントホルダ15の上端より上方のハウジング本体にはOリング16が嵌合されており、このOリング16によってコネクタハウジング2は前記蓄電池の雄端子を囲む例えば凹状のハウジング(図示せず)に圧着される。
【0024】
インジケータ部材17は、ハウジング本体2aの左側部の孔18に上方移動自在に収容されており、コネクタ未装着状態ではインジケータ部材17の上端が孔18の内側に位置している。そして、前記蓄電池の雄端子に装着されると、この装着過程でインジケータ部材17の下端が押圧されて上方に移動してインジケータ部材17の上端が孔18より露出する。このインジケータ部材17の露出によって作業者はコネクタ1の正常な装着を認識することができるものである。
【0025】
一方、ハウジング本体2a内の前記ゴム挿通孔5は円筒状の空間に形成され、この上方の前記ホルダ収容室6は角筒状の空間に形成されている。この角筒状の空間は平面視で正方形である。そして、図4に示すように、ゴム栓挿通孔5の内径Rに対してホルダ収容室6の最小内径Lが一致するように形成されている。つまり、ゴム栓挿通孔5の内周が角筒状のホルダ収容室6に内接している。ゴム栓挿通孔5の内面には凹凸部(特に符号を付さず)が形成されている。また、ハウジング本体2aの上端は四角枠体形状を有し、この一対の対向する枠体の中央には位置決め溝20が、他の一対の対向する枠体の2隅には位置決め突起21a及びその中央部には係止孔21bがそれぞれ設けられている。
【0026】
ゴム栓22は円板状に成っていて、その側面には複数の凸部22aが形成されている。このゴム栓22はゴム栓挿通孔5に内嵌されている。
【0027】
リヤホルダ23は田字状の偏平枠体形を有し、この一対の対向する枠体の側面中央には側方に突出する位置決め突起23aが、他の一対の対向する枠体の側面の2隅には位置決め突起23b及びその側面中央部には側方に突出する係合突起23cが設けられている。このリヤホルダ23はその位置決め突起23a,23cが位置決め溝20,21aに挿入された状態でホルダ収容室6に内嵌されている。この嵌合位置ではリヤホルダ23の係合突起23bが係合孔21bに係合されている。これによって、リヤホルダ23がコネクタハウジング2のホルダ収容室6から脱落するのを防止できるようになっている。
【0028】
上記の構成において、コネクタハウジング2のホルダ収容室6とゴム栓挿通孔5との境界面であって、ホルダ収容室6の最小内径以外の面24にリヤホルダ23が当接するため、リヤホルダ23に外力が作用してもリヤホルダ23のゴム栓挿通孔5方向への移動を阻止することができ、コネクタハウジング2のホルダ収容室6内にリヤホルダ23を嵌合状態で確実に係止することができる。また、図4に示すように、ゴム栓挿通孔5の内径Rに対してホルダ収容室6の最小内径Lを一致させたので、ホルダ収容室6等を備えたコネクタハウジング2の外形寸法Dを可及的に小さく形成することができる。
【0029】
尚、前記実施形態によれば、ホルダ収容室6の角筒状を正方形として形成したが、長方形や五角形や六角形等に形成しても良い。但し、ホルダ収容室6の角筒状を平面視で正方形として形成した方が最もコネクタハウジング2の外形寸法Dを小さく形成することができる。また、コネクタハウジング2にアーム部2bを設け、このアーム部2bより電線9を引き回すように構成したが、アーム部2bを設けることなく、従来例のように、ハウジング本体2aの上面側(雌端子7の後面側)より電線9を引き回すよう構成しても良い。この場合には、従来例のように、ゴム栓22及びリヤホルダ23には電線挿通孔を設ける必要がある。
【0030】
さらに、前記実施形態によれば、コネクタ1は電気自動車等の車両に搭載される蓄電池の雄端子(バッテリポスト)に接続するものであるが、本発明はコネクタハンジング2内にゴム栓22とリヤホルダ23とを嵌合状態で収容する全てのコネクタに適用可能である。また、リヤホルダ23に係合突起23bを、コネクタハウジング2に係合孔21bをそれぞれ設けたが、反対に、コネクタハウジング2に係合突起を、リヤホルダ23に係合孔をそれぞれ設けても良い。
【0031】
【発明の効果】
以上説明したように、請求項1の発明によれば、コネクタハウジング内に端子収容室と該端子収容室に連続するゴム栓挿通孔及びこれにさらに連続するホルダ収容室を形成し、このゴム栓挿通孔にゴム栓を、ホルダ収容室にリヤホルダをそれぞれ嵌合状態で収容したコネクタにおいて、前記ゴム栓挿通孔を円筒状の空間で形成し、前記ホルダ収容室を角筒状の空間で形成し、前記ゴム栓挿通孔の内径に対して前記ホルダ収容室の最小内径を一致させたので、ホルダ収容室とゴム栓挿通孔との境界面であって、ホルダ収容室の最小内径以外の面にリヤホルダが当接するため、リヤホルダに外力が作用してもリヤホルダのゴム栓挿通孔方向への移動を確実に阻止することができ、ホルダ収容室内にリヤホルダを嵌合状態で確実に係止することができる。また、ゴム栓挿通孔の内径に対してホルダ収容室の最小内径を一致させたので、ホルダ収容室を形成するコネクタハウジングの部分を可及的に小さくすることができる。
【0032】
請求項2の発明によれば、請求項1記載のコネクタであって、前記ホルダ収容室の角筒状の空間は、平面視で正方形として形成したので、請求項1の発明の効果に加え、ホルダ収容室等を備えたコネクタハウジングの外形寸法を最も小さく形成することができる。
【0033】
請求項3の発明によれば、請求項1又は2記載のコネクタであって、前記リヤホルダと前記コネクタハウジングとのいずれか一方には係合突起を、他方には係合孔をそれぞれ設けたので、請求項1又は2の発明の効果に加え、リヤホルダがコネクタハウジングから脱落するのを確実に防止することができる。
【図面の簡単な説明】
【図1】本発明の一実施形態に係るコネクタの分解斜視図である。
【図2】(a)は本発明の一実施形態に係るコネクタの平面図、(b)はその正面図、(c)はその左側面図である。
【図3】図2(a)のA−A線に沿う断面図である。
【図4】上記コネクタのコネクタハウジングの要部の平面図である。
【図5】従来例のコネクタの分解斜視図である。
【図6】上記従来例のコネクタの組付け後の一部の斜視図である。
【図7】上記従来例のコネクタの背面図である。
【符号の説明】
1 コネクタ
2 コネクタハウジング
3 端子収容室
5 ゴム栓挿通孔
6 ホルダ収容室
21b 係合孔
22 ゴム栓
23 リヤホルダ
23b 係合突起
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connector in which a rubber plug and a rear holder are accommodated in a connector handling, and in particular, a connector that can be attached to a male terminal (battery post) of a storage battery mounted on a vehicle such as an electric vehicle with one touch. Related to.
[0002]
[Prior art]
A conventional connector is shown in FIGS. FIG. 5 is an exploded perspective view of a conventional connector, FIG. 6 is a perspective view of a part of the connector after assembly, and FIG. 7 is a rear view of the connector.
[0003]
5-7, the connector 31 is couple | bonded with the edge part of the shield electric wire 30, and this connector 31 is electrically connected by being connected with the other party connector (not shown). The connector 31 has a connector housing 32, and a terminal housing chamber (not shown) is formed in the connector housing 32. A rubber plug insertion hole 32a and a holder accommodating chamber 32b are formed continuously on the rear side of the terminal accommodating chamber. A plurality of engaging grooves 32 c are provided in the holder housing chamber 32 b of the connector housing 32.
[0004]
On the other hand, the shielded electric wire 30 is composed of a central core portion 30a, an insulating inner skin 30b covering the outer periphery thereof, a braided wire 30c disposed on the outer periphery thereof, and an insulating outer skin 30d covering the outer periphery thereof. At the end portion 30, the core wire portion 30a and the braided wire 30c are exposed. A cylindrical terminal 33 is fixed to the exposed core portion 30a, and a shield terminal 34 is fixed to the braided wire 30c by caulking or the like. The cylindrical terminal 33 is accommodated in the terminal accommodating chamber.
[0005]
The rubber plug 35 is formed in a ring shape, and an electric wire insertion hole 35a is formed at the center thereof. The rubber plug 35 in which the shielded electric wire 30 is inserted into the electric wire insertion hole 35a is accommodated in the rubber plug insertion hole 32a of the connector housing 32 in a fitted state (hereinafter referred to as internal fitting). The rear holder 36 is formed in a ring shape, and an electric wire insertion hole 36a is formed at the center thereof, and a plurality of engagement protrusions 36b are provided on the outer peripheral surface of the rear holder 36. A rear holder 36 in which the shielded electric wire 30 is inserted into the electric wire insertion hole 36 a is fitted in the holder accommodating chamber 32 b of the connector housing 32. The engagement protrusion 36 b of the rear holder 36 fitted inside is engaged with the engagement groove 32 c of the connector housing 32.
[0006]
In the connector 31 configured as described above, the rubber plug 35 prevents moisture from entering the connector housing 32 from the rear surface side of the connector 31, and the rear holder 36 applies an external force from the rear surface side of the connector housing 32. The positional deviation of the internal parts (for example, the terminal 33 etc.) due to is prevented.
[0007]
Similar technology relating to the connector 31 is disclosed in Japanese Patent Laid-Open No. 6-203919.
[0008]
[Problems to be solved by the invention]
However, in the conventional connector 31, the rubber plug insertion hole 32a in the connector housing 32 and the holder housing chamber 32b are formed in a cylindrical shape having the same diameter, so that an external force greater than the engagement force of the engagement protrusion 36b is applied. When acting on the rear holder 36, the rear holder 36 may enter the rubber plug insertion hole 32a. When the rear holder 36 enters the rubber plug insertion hole 32a, there is a possibility that inconveniences such as displacement of internal parts occur.
[0009]
Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a connector capable of reliably locking the rear holder in the holder housing chamber of the connector housing.
[0010]
[Means for Solving the Problems]
According to the first aspect of the present invention, a terminal housing chamber, a rubber plug insertion hole continuing to the terminal housing chamber, and a holder housing chamber continuing to the terminal housing chamber are formed in the connector housing, and the rubber plug is inserted into the rubber plug insertion hole. In the connector in which the rear holder is accommodated in the accommodation chamber, the rubber plug insertion hole is formed in a cylindrical space, the holder storage chamber is formed in a rectangular tube space, and the rubber plug insertion hole The minimum inner diameter of the holder housing chamber is matched with the inner diameter.
[0011]
In this connector, since the rear holder abuts on the boundary surface between the holder housing chamber and the rubber plug insertion hole and other than the minimum inner diameter of the holder housing chamber, the rubber plug insertion hole of the rear holder acts even if an external force acts on the rear holder. Movement in the direction is prevented, and the rear holder is securely locked in the holder accommodating chamber. Further, since the minimum inner diameter of the holder housing chamber is made to coincide with the inner diameter of the rubber plug insertion hole, the outer dimensions of the portion of the connector housing that forms the holder housing chamber are reduced.
[0012]
A second aspect of the present invention is the connector according to the first aspect, characterized in that the rectangular cylindrical space of the holder accommodating chamber is square in plan view.
[0013]
In this connector, in addition to the operation of the first aspect of the invention, the outer dimension of the connector housing having the holder housing chamber and the like is the smallest.
[0014]
A third aspect of the invention is the connector according to the first or second aspect, wherein an engagement protrusion is provided on one of the rear holder and the connector housing, and an engagement hole is provided on the other. And
[0015]
In this connector, in addition to the operation of the first or second aspect of the invention, the rear holder is prevented from dropping off from the connector housing.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0017]
1 is an exploded perspective view of a connector according to an embodiment of the present invention, FIG. 2 (a) is a plan view of the connector, FIG. 2 (b) is a front view of the connector, and FIG. 2 (c) is a left side of the connector. FIG. 3 is a sectional view taken along the line AA in FIG. 2A, and FIG. 4 is a plan view of the main part of the connector housing of the connector.
[0018]
The connector 1 shown in FIGS. 1 to 3 is one-touch connected to a male terminal (battery post) of a storage battery mounted on a vehicle such as an electric vehicle (not shown). The connector housing 2 made of synthetic resin of the connector 1 includes a housing main body 2a extending in the vertical direction and an arm body 2b protruding integrally from the side surface of the housing main body 2a and extending in the left-right direction. A cylindrical terminal accommodating chamber 3 is formed inside the housing body 2a, and a cylindrical electric wire end accommodating chamber 4 is formed inside the arm body 2b. The terminal accommodating chamber 3 and the electric wire end accommodating chamber are formed. 4 communicates.
[0019]
The lower part of the terminal accommodating chamber 3 is opened from the lower surface of the housing body 2a, and the male terminal of the storage battery is inserted through this opening. A rubber insertion hole 5 is continuously formed above the terminal accommodation chamber 3, and a holder accommodation chamber 6 is further continuously formed above the rubber insertion hole 5. The upper part of the holder accommodating chamber 6 is opened from the upper surface of the housing body 2a. The right side of the electric wire end accommodating chamber 4 is opened from the side surface of the arm body 2b.
[0020]
The female terminal 7 has a substantially cylindrical shape and is accommodated in the terminal accommodating chamber 3. A male terminal insertion hole 7 a is formed in the lower part of the female terminal 7 in the vertical direction, and a screw hole 7 b is formed in the upper part of the female terminal 7 in the vertical direction. A locking groove 7c is formed on the outer periphery of the female terminal 7, and a locking projection 8 of the housing body 2a is locked in the locking groove 7c. The female terminal 7 is fixed in the terminal accommodating chamber 3 by this locking structure or the like.
[0021]
The electric wire 9 accommodated in the electric wire end portion accommodating chamber 4 is composed of a central electric wire portion 9a and an insulating sheath 9b covering the outer periphery thereof, and the electric wire portion 9a is exposed at the end portion of the electric wire 9. The end portion of the electric wire 9 is accommodated in the electric wire end portion accommodating chamber 4, and one end side of the connection fitting 10 is fixed to the exposed electric wire portion 9a by, for example, caulking. The other end side of the connection fitting 10 is fixed to the female terminal 7 by screwing a bolt 11 inserted into a hole (particularly not labeled) of the other end side into the screw hole 7b of the female terminal 7. Has been. That is, the electric wire 9 is electrically connected to the female terminal 7 via the connection fitting 10.
[0022]
A rubber plug 12 and an arm side holder 13 are fitted into the opening side in the electric wire end accommodating chamber 4, and both the rubber plug 12 and the arm side holder 13 have electric wire insertion holes 12a and 13a in the center. It is disk-shaped. An engagement protrusion 13b is provided on the outer periphery of the arm side holder 13, and the engagement protrusion 13b is engaged with the engagement hole 14 of the arm body 2b. The arm side holder 13 is positioned and fixed by this engagement structure or the like.
[0023]
The front holder 15 has a bottomed cylindrical shape and is fitted to the lower portion of the housing body 2a. A male terminal insertion opening 15 a is formed at the bottom of the front holder 15. When the front holder 15 is fitted into the housing body 2a, the displacement of the housing body 2a in the diameter increasing direction is restricted, so that the locking protrusion 8 does not come off the locking groove 7c. An O-ring 16 is fitted to the housing body above the upper end of the front holder 15, and the O-ring 16 causes the connector housing 2 to be a concave housing (not shown) surrounding the male terminal of the storage battery. Crimped.
[0024]
The indicator member 17 is accommodated in the hole 18 on the left side of the housing body 2a so as to be movable upward. The upper end of the indicator member 17 is located inside the hole 18 when the connector is not attached. When attached to the male terminal of the storage battery, the lower end of the indicator member 17 is pressed and moved upward in this attachment process, and the upper end of the indicator member 17 is exposed from the hole 18. By exposing the indicator member 17, the operator can recognize normal attachment of the connector 1.
[0025]
On the other hand, the rubber insertion hole 5 in the housing body 2a is formed in a cylindrical space, and the upper holder housing chamber 6 is formed in a rectangular tube-shaped space. This square cylindrical space is square in plan view. And as shown in FIG. 4, it forms so that the minimum internal diameter L of the holder accommodating chamber 6 may correspond with the internal diameter R of the rubber plug insertion hole 5. FIG. That is, the inner periphery of the rubber plug insertion hole 5 is inscribed in the square tube-shaped holder housing chamber 6. The inner surface of the rubber plug insertion hole 5 is formed with an uneven portion (particularly not labeled). The upper end of the housing body 2a has a rectangular frame shape. A positioning groove 20 is formed at the center of the pair of opposing frames, and positioning protrusions 21a and the projections 21a are formed at two corners of the other pair of opposing frames. A locking hole 21b is provided in the center portion.
[0026]
The rubber plug 22 has a disk shape, and a plurality of convex portions 22a are formed on the side surface thereof. The rubber plug 22 is fitted in the rubber plug insertion hole 5.
[0027]
The rear holder 23 has a flat frame shape with a square shape, and positioning projections 23a projecting sideways are formed at the two corners of the side surfaces of the other pair of opposing frame bodies at the center of the side surfaces of the pair of opposing frame bodies. The positioning projection 23b and an engaging projection 23c projecting sideways are provided at the center of the side surface. The rear holder 23 is fitted in the holder housing chamber 6 with the positioning protrusions 23a and 23c inserted into the positioning grooves 20 and 21a. At this fitting position, the engagement protrusion 23b of the rear holder 23 is engaged with the engagement hole 21b. As a result, the rear holder 23 can be prevented from falling out of the holder housing chamber 6 of the connector housing 2.
[0028]
In the above configuration, the rear holder 23 comes into contact with the surface 24 between the holder housing chamber 6 and the rubber plug insertion hole 5 of the connector housing 2 and other than the minimum inner diameter of the holder housing chamber 6. The rear holder 23 can be prevented from moving in the direction of the rubber plug insertion hole 5 even if the rear holder 23 acts, and the rear holder 23 can be reliably locked in the holder housing chamber 6 of the connector housing 2 in the fitted state. Further, as shown in FIG. 4, since the minimum inner diameter L of the holder accommodating chamber 6 is made to coincide with the inner diameter R of the rubber plug insertion hole 5, the outer dimension D of the connector housing 2 provided with the holder accommodating chamber 6 and the like is set. It can be formed as small as possible.
[0029]
In addition, according to the said embodiment, although the square cylinder shape of the holder storage chamber 6 was formed as a square, you may form in a rectangle, a pentagon, a hexagon, etc. However, the outer dimension D of the connector housing 2 can be made the smallest when the rectangular tube shape of the holder housing chamber 6 is formed as a square in plan view. Further, the connector housing 2 is provided with the arm portion 2b and the electric wire 9 is routed from the arm portion 2b. However, without providing the arm portion 2b, the upper surface side (female terminal) of the housing body 2a is provided as in the conventional example. 7 on the rear surface side), the electric wire 9 may be routed. In this case, it is necessary to provide a wire insertion hole in the rubber plug 22 and the rear holder 23 as in the conventional example.
[0030]
Further, according to the above embodiment, the connector 1 is connected to a male terminal (battery post) of a storage battery mounted on a vehicle such as an electric vehicle, but the present invention includes a rubber plug 22 in the connector handling 2. The present invention can be applied to all connectors that accommodate the rear holder 23 in a fitted state. Further, although the rear holder 23 is provided with the engagement protrusion 23b and the connector housing 2 is provided with the engagement hole 21b, conversely, the connector housing 2 may be provided with the engagement protrusion and the rear holder 23 may be provided with the engagement hole.
[0031]
【The invention's effect】
As described above, according to the first aspect of the present invention, the terminal housing chamber, the rubber plug insertion hole continuing to the terminal housing chamber, and the holder housing chamber continuing to the terminal housing chamber are formed in the connector housing. In the connector in which the rubber plug is accommodated in the insertion hole and the rear holder is accommodated in the holder accommodation chamber, the rubber plug insertion hole is formed in a cylindrical space, and the holder accommodation chamber is formed in a rectangular tube space. Since the minimum inner diameter of the holder accommodating chamber is made to coincide with the inner diameter of the rubber plug insertion hole, it is a boundary surface between the holder accommodating chamber and the rubber plug insertion hole, and a surface other than the minimum inner diameter of the holder accommodating chamber. Since the rear holder abuts, even when an external force is applied to the rear holder, the rear holder can be reliably prevented from moving in the direction of the rubber plug insertion hole, and the rear holder can be securely locked in the fitted state in the holder housing chamber. so That. Moreover, since the minimum inner diameter of the holder housing chamber is made to coincide with the inner diameter of the rubber plug insertion hole, the portion of the connector housing that forms the holder housing chamber can be made as small as possible.
[0032]
According to the invention of claim 2, in the connector of claim 1, the square cylindrical space of the holder accommodation chamber is formed as a square in a plan view, so in addition to the effect of the invention of claim 1, The outer dimension of the connector housing provided with the holder housing chamber or the like can be formed to be the smallest.
[0033]
According to a third aspect of the invention, in the connector according to the first or second aspect, an engagement protrusion is provided on one of the rear holder and the connector housing, and an engagement hole is provided on the other. In addition to the effects of the first or second aspect of the invention, it is possible to reliably prevent the rear holder from falling off the connector housing.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a connector according to an embodiment of the present invention.
2A is a plan view of a connector according to an embodiment of the present invention, FIG. 2B is a front view thereof, and FIG. 2C is a left side view thereof.
FIG. 3 is a cross-sectional view taken along the line AA in FIG.
FIG. 4 is a plan view of a main part of a connector housing of the connector.
FIG. 5 is an exploded perspective view of a conventional connector.
6 is a perspective view of a part of the conventional connector after assembly. FIG.
FIG. 7 is a rear view of the conventional connector.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Connector 2 Connector housing 3 Terminal accommodation chamber 5 Rubber plug insertion hole 6 Holder accommodation chamber 21b Engagement hole 22 Rubber plug 23 Rear holder 23b Engagement protrusion

Claims (3)

コネクタハウジング内に端子収容室とこの端子収容室に連続するゴム栓挿通孔及びこれにさらに連続するホルダ収容室を形成し、このゴム栓挿通孔にゴム栓を、ホルダ収容室にリヤホルダを、それぞれ嵌合状態で収容したコネクタにおいて、
前記ゴム栓挿通孔を円筒状の空間で形成し、前記ホルダ収容室を角筒状の空間で形成し、前記ゴム栓挿通孔の内径に対して前記ホルダ収容室の最小内径を一致させたことを特徴とするコネクタ。
A terminal housing chamber, a rubber plug insertion hole continuing to the terminal housing chamber, and a holder housing chamber continuing further to the terminal housing chamber are formed in the connector housing, a rubber plug is formed in the rubber plug insertion hole, and a rear holder is disposed in the holder housing chamber. In the connector housed in the mated state,
The rubber plug insertion hole is formed in a cylindrical space, the holder accommodating chamber is formed in a rectangular tube space, and the minimum inner diameter of the holder accommodating chamber is matched with the inner diameter of the rubber plug insertion hole. Features a connector.
請求項1記載のコネクタであって、
前記ホルダ収容室の角筒状の空間は、平面視で正方形であることを特徴とするコネクタ。
The connector according to claim 1,
The rectangular cylindrical space of the holder housing chamber is a square in plan view.
請求項1又は2記載のコネクタであって、
前記リヤホルダと前記コネクタハウジングとのいずれか一方には係合突起を、他方には係合孔をそれぞれ設けたことを特徴とするコネクタ。
The connector according to claim 1 or 2,
An engagement projection is provided on one of the rear holder and the connector housing, and an engagement hole is provided on the other, respectively.
JP26347898A 1998-09-17 1998-09-17 connector Expired - Fee Related JP3654776B2 (en)

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FR2953071B1 (en) * 2009-11-23 2012-04-20 Tyco Electronics France Sas ELECTRICAL CONNECTOR HOUSING
JP6304081B2 (en) * 2015-03-13 2018-04-04 住友電装株式会社 Rubber stopper retainer mounting structure
DE102016109882A1 (en) * 2016-05-30 2017-11-30 Rema Lipprandt Gmbh & Co. Kg Quick disconnectable electrical connector and method for contacting an electrical contact element with an electrical conductor
DE102021105894A1 (en) 2021-03-11 2022-09-15 Te Connectivity Germany Gmbh Component for attaching a cable to a housing body
JP2023146263A (en) * 2022-03-29 2023-10-12 住友電装株式会社 charging connector
FR3136123A1 (en) * 2022-05-24 2023-12-01 Aptiv Technologies Limited Screwed contact power connector and method of connecting and disconnecting such a connector

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JPS58176364U (en) * 1982-05-21 1983-11-25 田中 元康 Battery cable terminal that allows connection with auxiliary charging cable
JPS6240782U (en) * 1985-08-29 1987-03-11
JP2521746Y2 (en) * 1990-07-30 1997-01-08 日本電池株式会社 Storage battery
JPH0644047U (en) * 1992-11-24 1994-06-10 矢崎総業株式会社 Waterproof connector
JP2815081B2 (en) * 1993-02-18 1998-10-27 矢崎総業株式会社 Connector device for connection between batteries
JP3531684B2 (en) * 1994-07-19 2004-05-31 矢崎総業株式会社 Terminal locking mechanism
JP3029085B2 (en) * 1994-11-02 2000-04-04 矢崎総業株式会社 Common terminal for large and small current, female terminal for large current, power receiving side connector and charging connector for large and small current
JPH08138785A (en) * 1994-11-10 1996-05-31 Yazaki Corp Connector equipped with shutter mechanism
JP3131108B2 (en) * 1995-01-18 2001-01-31 矢崎総業株式会社 Electric vehicle connector
JP3204918B2 (en) * 1996-04-08 2001-09-04 矢崎総業株式会社 Terminal structure for storage battery

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