JP5985343B2

JP5985343B2 - housing

Info

Publication number: JP5985343B2
Application number: JP2012224449A
Authority: JP
Inventors: 隆志室; 直樹 ▲高▼村
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 2012-10-09
Filing date: 2012-10-09
Publication date: 2016-09-06
Anticipated expiration: 2032-10-09
Also published as: JP2014078349A

Description

本発明は、ハウジングに関する。 The present invention relates to a housing.

樹脂製のコネクタハウジングに穿設された挿入孔に対して導電金属製の端子が挿入されて保持されたコネクタにおいて、当該挿入孔の内壁面と端子との間に形成される隙間に液状の封止剤をポッティング（potting）して固化させ、当該隙間をシールしてコネクタハウジング内部の防水を図る技術が知られている（例えば、特許文献１参照。）。 In a connector in which a conductive metal terminal is inserted and held in an insertion hole drilled in a resin connector housing, a liquid seal is formed in a gap formed between the inner wall surface of the insertion hole and the terminal. A technique is known in which a stopper is potted to solidify and the gap is sealed to waterproof the inside of the connector housing (see, for example, Patent Document 1).

特開２０１１−１８１４５１号公報JP 2011-181451 A

図１２は特許文献１に開示された従来のコネクタ１００の水平断面図である。
コネクタ１００は、複数のメス端子（図示せず。）を電気的に接続するために用いられるジョイントコネクタであり、メス端子を内部に収容した相手方コネクタ（図示せず。）と嵌合する樹脂製のコネクタハウジング１１０と、平行に配列されてメス端子と接続される複数のオス端子１２１の後端を連結部１２３で一体に連結した導電金属製のジョイント端子１２０と、を備えている。 FIG. 12 is a horizontal sectional view of a conventional connector 100 disclosed in Patent Document 1. In FIG.
The connector 100 is a joint connector used to electrically connect a plurality of female terminals (not shown), and is made of a resin that fits with a mating connector (not shown) that houses the female terminals. Connector housing 110 and conductive metal joint terminals 120 in which rear ends of a plurality of male terminals 121 connected in parallel and connected to female terminals are integrally connected by a connecting portion 123.

コネクタハウジング１１０は、前方に向けて開放されて相手方コネクタが嵌合する嵌合空間１１１の後端側を壁部１１２で閉鎖した筒状に形成されている。壁部１１２には、図１２に示すように、連結部１２３が封止空間１１３に位置し、オス端子１２１の一部が嵌合空間１１１に位置している状態で、ジョイント端子１２０がインサート成形されている。これにより、壁部１１２に形成された端子収容孔１１４に、オス端子１２１が収容されて保持されている。 The connector housing 110 is formed in a cylindrical shape in which the rear end side of the fitting space 111 that is opened toward the front and into which the mating connector is fitted is closed by the wall portion 112. As shown in FIG. 12, the joint terminal 120 is insert-molded on the wall portion 112 in a state where the connecting portion 123 is located in the sealing space 113 and a part of the male terminal 121 is located in the fitting space 111. Has been. Thus, the male terminal 121 is accommodated and held in the terminal accommodation hole 114 formed in the wall portion 112.

コネクタハウジング１１０の封止空間１１３には、液状の封止剤１３０がポッティングされて固化されている。これにより、端子収容孔１１４の内壁面とオス端子１２１との隙間を封止剤１３０がシールして、コネクタハウジング１１０内部の防水が図られている。 A liquid sealing agent 130 is potted and solidified in the sealing space 113 of the connector housing 110. As a result, the sealant 130 seals the gap between the inner wall surface of the terminal accommodation hole 114 and the male terminal 121, thereby waterproofing the connector housing 110.

ところで、このような従来のコネクタでは、ポッティングされた液状の封止剤１３０がオス端子１２１を伝って端子収容孔１１４からコネクタハウジング１１０の内部に（即ち、嵌合空間１１１に。）浸入することを防止する必要がある。このために、従来のコネクタ１００では、上述したようにジョイント端子１２０をコネクタハウジング１１０にインサート成形して、オス端子１２１と端子収容孔１１４の内壁面との間の隙間を小さくしている。 By the way, in such a conventional connector, the potted liquid sealant 130 enters the connector housing 110 (that is, into the fitting space 111) from the terminal receiving hole 114 through the male terminal 121. Need to prevent. For this reason, in the conventional connector 100, the joint terminal 120 is insert-molded in the connector housing 110 as described above, and the gap between the male terminal 121 and the inner wall surface of the terminal accommodating hole 114 is reduced.

しかしながら、インサート成形を用いると、製造コストが嵩む。 However, when insert molding is used, manufacturing costs increase.

本発明は、上述した事情に鑑みてなされたものであり、その目的は、製造コストを低減可能なハウジングを提供することにある。 This invention is made | formed in view of the situation mentioned above, The objective is to provide the housing which can reduce manufacturing cost.

前述した目的を達成するために、本発明に係るハウジングは、下記（１）〜（３）を特徴としている。
（１）端子が挿入されて収容される端子収容空間を画成する挿入孔が穿設された樹脂製のハウジングであって、
前記挿入孔の内壁面の、前記端子が挿入される向きにおける前端には、該向きにおける前方に向けて前記端子収容空間が幅狭になるように傾斜した傾斜面を有するテーパ部が突設され、
前記端子が前記挿入孔に挿入されて該挿入孔を貫通し、前記テーパ部に圧入された場合には、前記テーパ部の一部が、前記向きにおける前方に変形して前記端子収容空間の外部に突出し、突出した前記テーパ部の一部の前記傾斜面が、前記端子の外側面に接触し、
前記向きに視た前記挿入孔の内縁形状が、前記向きに視た前記端子の断面形状に対応した、４つの内壁面に囲まれた矩形状に形成され、該内壁面それぞれの前記前端には、前記テーパ部が前記内壁面の幅方向に亘って形成され、
隣接する前記テーパ部が交差する４つの隅部に位置する傾斜面のそれぞれには、前記傾斜面の先端から根元に亘って、前記隣接するテーパ部の傾斜面が交差する交線に沿って、凹溝が形成されている、
こと。
（２）端子が挿入されて収容される端子収容空間を画成する挿入孔が穿設された樹脂製のハウジングであって、
前記挿入孔の内壁面の、前記端子が挿入される向きにおける前端には、該向きにおける前方に向けて前記端子収容空間が幅狭になるように傾斜した傾斜面を有するテーパ部が突設され、
前記端子が前記挿入孔に挿入されて該挿入孔を貫通し、前記テーパ部に圧入された場合には、前記テーパ部の一部が、前記向きにおける前方に変形して前記端子収容空間の外部に突出し、突出した前記テーパ部の一部の前記傾斜面が、前記端子の外側面に接触し、
前記向きに視た前記挿入孔の内縁形状が、前記向きに視た前記端子の断面形状に対応した、４つの内壁面に囲まれた矩形状に形成され、該内壁面それぞれの前記前端には、前記テーパ部が前記内壁面の幅方向に亘って形成され、
隣接する前記テーパ部が交差する４つの隅部に位置する傾斜面のそれぞれには、前記傾斜面の先端から前記先端と根元との中間部分に亘って、凹みが形成されている、
こと。
（３）上記（１）又は（２）の構成のハウジングであって、
前記凹溝又は前記凹みは、前記端子収容空間の外部に連通している、
こと。 In order to achieve the above-described object, a housing according to the present invention is characterized by the following (1) to ( 3 ).
(1) A resin housing having an insertion hole for defining a terminal accommodating space in which a terminal is inserted and accommodated,
At the front end of the inner wall surface of the insertion hole in the direction in which the terminal is inserted, a taper portion having an inclined surface inclined so as to narrow the terminal accommodating space toward the front in the direction is provided. ,
When the terminal is inserted into the insertion hole, penetrates the insertion hole, and is press-fitted into the taper portion, a part of the taper portion is deformed forward in the direction to be outside the terminal accommodating space. The inclined surface of a part of the protruding taper portion is in contact with the outer surface of the terminal ,
An inner edge shape of the insertion hole viewed in the direction is formed in a rectangular shape surrounded by four inner wall surfaces corresponding to a cross-sectional shape of the terminal viewed in the direction, and the front end of each of the inner wall surfaces The tapered portion is formed across the width direction of the inner wall surface,
In each of the inclined surfaces located at the four corners where the adjacent tapered portions intersect, from the tip to the root of the inclined surface, along the intersection line where the inclined surfaces of the adjacent tapered portions intersect, A ditch is formed,
about.
(2) A resin housing having an insertion hole that defines a terminal accommodating space in which a terminal is inserted and accommodated,
At the front end of the inner wall surface of the insertion hole in the direction in which the terminal is inserted, a taper portion having an inclined surface inclined so as to narrow the terminal accommodating space toward the front in the direction is provided. ,
When the terminal is inserted into the insertion hole, penetrates the insertion hole, and is press-fitted into the taper portion, a part of the taper portion is deformed forward in the direction to be outside the terminal accommodating space. The inclined surface of a part of the protruding taper portion is in contact with the outer surface of the terminal ,
An inner edge shape of the insertion hole viewed in the direction is formed in a rectangular shape surrounded by four inner wall surfaces corresponding to a cross-sectional shape of the terminal viewed in the direction, and the front end of each of the inner wall surfaces The tapered portion is formed across the width direction of the inner wall surface,
In each of the inclined surfaces located at the four corners where the adjacent tapered portions intersect, a recess is formed from the tip of the inclined surface to an intermediate portion between the tip and the root,
about.
( 3 ) A housing configured as described in ( 1 ) or ( 2 ) above,
The concave groove or the recess communicates with the outside of the terminal accommodating space.
about.

上記（１）及び（２）の構成のコネクタハウジングでは、挿入孔の内壁面の前端に突設されたテーパ部に端子が圧入された場合には、当該テーパ部が前方に変形して端子収容空間の外部に突出し、当該突出した部分が端子の外側面に接触する。これにより、端子が挿入孔に挿入されてテーパ部に圧入された場合に、挿入孔の前端における挿入孔の内壁面と端子との間の隙間を小さくできる。このため、インサート成形を用いることなく、挿入孔の内壁面と端子との間の隙間を水分が通過することを抑制でき、例えば、挿入孔の内壁面と端子との間の隙間をシールするために、端子収容空間に後側からポッティングされた封止剤が、挿入孔の前端における挿入孔の内壁面と端子との間の隙間から、端子収容空間の外部に浸出することを防止できる。
更に、上記（１）及び（２）の構成のコネクタハウジングでは、挿入孔の内壁面に該内壁面の幅方向に亘って形成された２つのテーパ部が交差する隅部に、当該テーパ部の傾斜面の先端から内壁面に向けて窪む凹部が形成されている。これにより、当該凹部が無い場合には辺部よりも剛性が高く変形しにくい隅部における剛性が低下するため、テーパ部の全体が均等に変形しやすい。このため、挿入孔の内壁面と端子との間の隙間をより効果的に小さくすることができる。
特に、上記（１）の構成のコネクタハウジングは、凹部として、凹溝が、傾斜面の先端から根元に亘って、隣接するテーパ部の傾斜面が交差する交線に沿って形成されているため、剛性が高く変形しにくい隅部における剛性をより効果的に低下させることができる。
特に、上記（２）の構成のコネクタハウジングは、凹部として、凹みが、傾斜面の先端から先端と根元との中間部分に亘って形成されているため、剛性が高く変形しにくい隅部における剛性をより効果的に低下させることができる。
上記（３）の構成のコネクタハウジングは、凹部が端子収容空間の外部に連通しているため、剛性が高く変形しにくい隅部における剛性をより効果的に低下させることができる。 In the connector housing configured as described above in (1) and (2) , when the terminal is press-fitted into the tapered portion projecting from the front end of the inner wall surface of the insertion hole, the tapered portion is deformed forward to accommodate the terminal. Projecting to the outside of the space, the projecting part contacts the outer surface of the terminal. Accordingly, when the terminal is inserted into the insertion hole and press-fitted into the tapered portion, the gap between the inner wall surface of the insertion hole and the terminal at the front end of the insertion hole can be reduced. For this reason, it is possible to suppress moisture from passing through the gap between the inner wall surface of the insertion hole and the terminal without using insert molding, for example, to seal the gap between the inner wall surface of the insertion hole and the terminal. In addition, it is possible to prevent the sealing agent potted from the rear side into the terminal accommodating space from leaching out of the terminal accommodating space from the gap between the inner wall surface of the insertion hole and the terminal at the front end of the insertion hole.
Furthermore, in the connector housing having the above-described configuration ( 1 ) and (2) , at the corner where the two tapered portions formed across the inner wall surface of the insertion hole intersect the width direction of the inner wall surface, A recess that is recessed from the tip of the inclined surface toward the inner wall surface is formed. Thereby, when there is no said recessed part, since the rigidity in a corner part which is harder than a side part and is hard to deform | transform will fall, the whole taper part tends to deform | transform uniformly. For this reason, the gap between the inner wall surface of the insertion hole and the terminal can be reduced more effectively.
Particularly, in the connector housing having the configuration ( 1 ) , the concave groove is formed as a concave portion along the intersection line where the inclined surfaces of the adjacent tapered portions intersect from the tip of the inclined surface to the root. Further, the rigidity at the corner portion that is highly rigid and difficult to deform can be more effectively reduced.
In particular, the connector housing having the configuration (2) has a recess at the corner that is highly rigid and difficult to deform because the recess is formed as a recess from the tip of the inclined surface to the intermediate portion between the tip and the root. Can be reduced more effectively.
In the connector housing having the configuration ( 3 ), since the concave portion communicates with the outside of the terminal accommodating space, the rigidity at the corner portion that is highly rigid and difficult to deform can be more effectively reduced.

本発明によれば、製造コストを低減可能なハウジングを提供できる。 ADVANTAGE OF THE INVENTION According to this invention, the housing which can reduce manufacturing cost can be provided.

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

図１は、本発明の第１の実施形態に係るコネクタハウジング１０を備えるコネクタ１の組み立て途中の状態を示す斜視図である。FIG. 1 is a perspective view showing a state in the middle of assembly of the connector 1 including the connector housing 10 according to the first embodiment of the present invention. 図２は、コネクタハウジング１０の構成図で、図２（ａ）はコネクタハウジングの縦断面図、図２（ｂ）は図２（ａ）のＩＩｂ−ＩＩｂ線矢視断面の斜視図、図２（ｃ）は図２（ｂ）のＩＩｃ部拡大図である。2 is a configuration diagram of the connector housing 10, FIG. 2 (a) is a longitudinal sectional view of the connector housing, FIG. 2 (b) is a perspective view taken along the line IIb-IIb in FIG. 2 (a), FIG. (C) is the IIc part enlarged view of FIG.2 (b). 図３（ａ）は、図１のＩＩＩａ−ＩＩＩａ矢視断面図、図３（ｂ）は図３（ａ）のＩＩＩｂ部の拡大図である。3A is a cross-sectional view taken along the line IIIa-IIIa in FIG. 1, and FIG. 3B is an enlarged view of a portion IIIb in FIG. 3A. 図４は、コネクタハウジング１０の端子圧入孔１４及びテーパ部１７と端子２０との関係を示す図で、図４（ａ）は端子２０を圧入する前の状態を示す、端子圧入方向の後側から視た断面図、図４（ｂ）は図４（ａ）のＩＶｂ−ＩＶｂ矢視断面図、図４（ｃ）は端子２０を圧入した状態を示す、端子圧入方向の後側から視た断面図、図４（ｄ）は図４（ｃ）のＩＶｄ−ＩＶｄ矢視断面図、図４（ｅ）は端子２０が圧入されることでテーパ部１７が塑性変形してバリとして形成された状態を示す、端子圧入方向前方から見た斜視図である。FIG. 4 is a view showing the relationship between the terminal press-fitting hole 14 and the taper portion 17 of the connector housing 10 and the terminal 20, and FIG. 4A shows the state before the terminal 20 is press-fitted, and the rear side in the terminal press-fitting direction. 4B is a cross-sectional view taken along arrow IVb-IVb in FIG. 4A, and FIG. 4C is a view in which the terminal 20 is press-fitted, viewed from the rear side in the terminal press-fitting direction. 4D is a cross-sectional view taken along the line IVd-IVd in FIG. 4C, and FIG. 4E is a burr formed by plastic deformation of the tapered portion 17 by the terminal 20 being press-fitted. It is the perspective view seen from the terminal press-fit direction front which shows a state. 図５は、第１の実施形態に係るコネクタハウジング１０の作用を説明するための説明図で、図５（ａ）は端子１２０を圧入する前の端子収容孔１１４と端子１２０との関係を示す、端子圧入方向の後側から見た断面図、図５（ｂ）は端子１２０を圧入した状態を示す、端子圧入方向の後側から見た断面図、図５（ｃ）は図５（ｂ）のＶｃ−Ｖｃ矢視断面図である。FIG. 5 is an explanatory diagram for explaining the operation of the connector housing 10 according to the first embodiment. FIG. 5A shows the relationship between the terminal receiving hole 114 and the terminal 120 before the terminal 120 is press-fitted. FIG. 5B is a cross-sectional view seen from the rear side of the terminal press-fitting direction, and FIG. 5B is a cross-sectional view seen from the rear side of the terminal press-fitting direction. It is a Vc-Vc arrow sectional view of). 図６は、コネクタハウジング１０の更なる課題について説明するための図で、テーパ部１７の４隅の変形抵抗が高いためにテーパ部１７の塑性変形が不均一に進行し、テーパ部１７の塑性変形により形成されるバリと端子２０との間に大きめの隙間ができた場合を示す斜視図である。FIG. 6 is a diagram for explaining a further problem of the connector housing 10. Since the deformation resistance of the four corners of the taper portion 17 is high, the plastic deformation of the taper portion 17 proceeds unevenly, and the plasticity of the taper portion 17 is illustrated. FIG. 5 is a perspective view showing a case where a large gap is formed between a burr formed by deformation and a terminal 20. 図７は、図６で示した課題を解決するための第２の実施形態に係るコネクタハウジング１０ａにおける端子圧入孔１４の構成図で、図７（ａ）は断面斜視図、図７（ｂ）は端子圧入方向の後側から見た後面図である。7 is a configuration diagram of the terminal press-fitting hole 14 in the connector housing 10a according to the second embodiment for solving the problem shown in FIG. 6, and FIG. 7 (a) is a sectional perspective view, and FIG. 7 (b). These are the rear views seen from the rear side of the terminal press-fitting direction. 図８は、上記第２の実施形態に係るコネクタハウジング１０ａの端子圧入孔１４に端子２０を圧入した場合の説明図で、端子が圧入されることでテーパ部１７が塑性変形してバリとして形成された状態を示す、端子圧入方向前方から見た斜視図である。FIG. 8 is an explanatory view when the terminal 20 is press-fitted into the terminal press-fitting hole 14 of the connector housing 10a according to the second embodiment. When the terminal is press-fitted, the taper portion 17 is plastically deformed to form a burr. It is the perspective view seen from the terminal press-fit direction front which shows the state performed. 図９は、図６で示した課題を解決するための第３の実施形態に係るコネクタハウジング１０ｂにおける端子圧入孔１４の構成図で、図９（ａ）は断面斜視図、図９（ｂ）は端子圧入方向の後側から見た後面図である。FIG. 9 is a configuration diagram of the terminal press-fitting hole 14 in the connector housing 10b according to the third embodiment for solving the problem shown in FIG. 6, and FIG. 9 (a) is a sectional perspective view, and FIG. 9 (b). These are the rear views seen from the rear side of the terminal press-fitting direction. 図１０は、図６で示した課題を解決するための第４の実施形態に係るコネクタハウジング１０ｃにおける端子圧入孔１４の構成図で、図１０（ａ）は断面斜視図、図１０（ｂ）は端子圧入方向の後側から見た後面図である。FIG. 10 is a configuration diagram of the terminal press-fitting hole 14 in the connector housing 10c according to the fourth embodiment for solving the problem shown in FIG. 6, and FIG. 10 (a) is a sectional perspective view, and FIG. 10 (b). These are the rear views seen from the rear side of the terminal press-fitting direction. 図１１は、上記第３の実施形態及び第４の実施形態に係るコネクタハウジング１０ｂ，１０ｃの端子圧入孔１４に端子２０を圧入した場合の説明図で、端子２０が圧入されることでテーパ部１７が塑性変形してバリとして形成された状態を示す、端子圧入方向前方から見た斜視図である。FIG. 11 is an explanatory view when the terminal 20 is press-fitted into the terminal press-fitting hole 14 of the connector housings 10b and 10c according to the third embodiment and the fourth embodiment, and the taper portion is obtained when the terminal 20 is press-fitted. It is the perspective view seen from the terminal press-fit direction front which shows the state which 17 deform | transformed plastically and was formed as a burr | flash. 図１２は、従来のコネクタの水平断面図である。FIG. 12 is a horizontal sectional view of a conventional connector.

（第１の実施形態）
以下、第１の実施形態を図１〜図４を参照して説明する。
図１は、本発明の第１の実施形態に係るコネクタハウジング１０を備えるコネクタ１の組み立て途中の状態を示す斜視図である。図２は、コネクタハウジング１０の構成図で、図２（ａ）はコネクタハウジングの縦断面図、図２（ｂ）は図２（ａ）のＩＩｂ−ＩＩｂ線矢視断面の斜視図、図２（ｃ）は図２（ｂ）のＩＩｃ部拡大図である。図３（ａ）は、図１のＩＩＩａ−ＩＩＩａ矢視断面図、図３（ｂ）は図３（ａ）のＩＩＩｂ部の拡大図である。図４は、コネクタハウジング１０の端子圧入孔１４及びテーパ部１７と端子２０との関係を示す図で、図４（ａ）は端子２０を圧入する前の状態を示す、端子圧入方向の後側から視た断面図、図４（ｂ）は図４（ａ）のＩＶｂ−ＩＶｂ矢視断面図、図４（ｃ）は端子２０を圧入した状態を示す、端子圧入方向の後側から視た断面図、図４（ｄ）は図４（ｃ）のＩＶｄ−ＩＶｄ矢視断面図、図４（ｅ）は端子２０が圧入されることでテーパ部１７が塑性変形してバリとして形成された状態を示す、端子圧入方向前方から見た斜視図である。以下、本明細書中では、図１中に矢印で示すように前側、後側、上側、下側、左側、右側を規定して説明する。 (First embodiment)
Hereinafter, a first embodiment will be described with reference to FIGS.
FIG. 1 is a perspective view showing a state in the middle of assembly of the connector 1 including the connector housing 10 according to the first embodiment of the present invention. 2 is a configuration diagram of the connector housing 10, FIG. 2 (a) is a longitudinal sectional view of the connector housing, FIG. 2 (b) is a perspective view taken along the line IIb-IIb in FIG. 2 (a), FIG. (C) is the IIc part enlarged view of FIG.2 (b). 3A is a cross-sectional view taken along the line IIIa-IIIa in FIG. 1, and FIG. 3B is an enlarged view of a portion IIIb in FIG. 3A. FIG. 4 is a view showing the relationship between the terminal press-fitting hole 14 and the taper portion 17 of the connector housing 10 and the terminal 20, and FIG. 4B is a cross-sectional view taken along arrow IVb-IVb in FIG. 4A, and FIG. 4C is a view in which the terminal 20 is press-fitted, viewed from the rear side in the terminal press-fitting direction. 4D is a cross-sectional view taken along the line IVd-IVd in FIG. 4C, and FIG. 4E is a burr formed by plastic deformation of the tapered portion 17 by the terminal 20 being press-fitted. It is the perspective view seen from the terminal press-fit direction front which shows a state. Hereinafter, in the present specification, the front side, the rear side, the upper side, the lower side, the left side, and the right side are defined and described as indicated by arrows in FIG.

図１に示すコネクタ１は、相手方端子（メス端子、図示せず。）を内部に収容した相手方コネクタ（図示せず。）と嵌合する樹脂製のコネクタハウジング１０と、相手方端子と電気的に接続される複数の棒状の端子２０と、を備えている。図２（ａ）及び図２（ｂ）に示すように、コネクタハウジング１０は、後方に向けて開放された嵌合穴１１の前端を壁部１２で閉鎖した筒状に形成されている。壁部１２には、前後方向に貫通した複数の端子圧入孔１４が穿設されている。壁部１２の後端面（嵌合穴１１の底面に相当する。）には溝部１３が形成されており、この溝部１３には、図３（ａ）に示すように、嵌合穴１１の内部側から封止剤３０が充填される。封止剤３０としては、例えばエポキシ樹脂が用いられる。 A connector 1 shown in FIG. 1 includes a resin connector housing 10 that fits into a mating connector (not shown) that accommodates a mating terminal (female terminal, not shown), and the mating terminal. And a plurality of rod-shaped terminals 20 to be connected. As shown in FIGS. 2A and 2B, the connector housing 10 is formed in a cylindrical shape in which the front end of the fitting hole 11 opened rearward is closed by a wall portion 12. A plurality of terminal press-fit holes 14 penetrating in the front-rear direction are formed in the wall portion 12. A groove portion 13 is formed in the rear end surface of the wall portion 12 (corresponding to the bottom surface of the fitting hole 11), and the groove portion 13 has an inside of the fitting hole 11 as shown in FIG. The sealant 30 is filled from the side. For example, an epoxy resin is used as the sealant 30.

コネクタハウジング１０には、溝部１３の底面から壁部１２の前端面に亘って貫通するように、端子圧入孔（挿入孔）１４が穿設され、当該端子圧入孔１４の内部には、端子２０が挿入されて収容される端子収容空間１８が画成されている。端子圧入孔１４には、図３に示すように、端子２０が、コネクタハウジング１０の後側から前側に向けて端子圧入孔１４を貫通するように挿入されて圧入される。 A terminal press-fit hole (insertion hole) 14 is formed in the connector housing 10 so as to penetrate from the bottom surface of the groove portion 13 to the front end surface of the wall portion 12, and a terminal 20 is provided inside the terminal press-fit hole 14. A terminal accommodating space 18 in which is inserted and accommodated is defined. As shown in FIG. 3, the terminal 20 is inserted into the terminal press-fit hole 14 so as to pass through the terminal press-fit hole 14 from the rear side to the front side of the connector housing 10.

図１及び図３（ａ）に示すように、端子２０は、長手方向の前部に、端子圧入孔１４に圧入されて壁部１２を貫通する矩形状断面の前足部２１を有し、後部に、相手側コネクタの相手方端子に接続されるオス端子部２２を有し、前足部２１の後端に、前足部２１やオス端子部２２よりも幅広の幅広部２３を有している。また、幅広部２３から前足部２１への移行部には、幅広部２３から前足部２１に向けて徐々に幅が狭くなるクサビ形状部２４が設けられている。 As shown in FIG. 1 and FIG. 3A, the terminal 20 has a front foot portion 21 having a rectangular cross section that is press-fitted into the terminal press-fitting hole 14 and penetrates the wall portion 12 at the front portion in the longitudinal direction. In addition, a male terminal portion 22 connected to a counterpart terminal of the counterpart connector is provided, and a wide portion 23 wider than the front foot portion 21 and the male terminal portion 22 is provided at the rear end of the front foot portion 21. In addition, a wedge-shaped portion 24 whose width gradually decreases from the wide portion 23 toward the forefoot portion 21 is provided at the transition portion from the wide portion 23 to the forefoot portion 21.

端子圧入孔１４の端子圧入方向（即ち、端子挿入方向。）における後端（端子圧入時の入口。）には、端子２０の幅広部２３を収容する収容部１５が設けられている。また、端子圧入孔１４の長手方向の大部分を占める中間部は、一定の断面形状の圧入孔本体部１６（以下、当該部分を代表して端子圧入孔１４と称する場合がある。）として形成されている。端子２０のクサビ形状部２４は、圧入孔本体部１６の入口付近を塑性変形させながら端子圧入孔１４に圧入される部分として形成されている。 A receiving portion 15 for receiving the wide portion 23 of the terminal 20 is provided at the rear end (inlet when the terminal is pressed) in the terminal press-fitting hole 14 in the terminal press-fitting direction (that is, the terminal insertion direction). The intermediate portion occupying most of the terminal press-fitting hole 14 in the longitudinal direction is formed as a press-fitting hole main body 16 having a constant cross-sectional shape (hereinafter, this part may be referred to as the terminal press-fitting hole 14 in some cases). Has been. The wedge-shaped portion 24 of the terminal 20 is formed as a portion that is press-fitted into the terminal press-fit hole 14 while plastically deforming the vicinity of the inlet of the press-fit hole main body portion 16.

後方から視た圧入孔本体部１６の内縁形状は、前足部２１の断面形状にほぼ合致するような形状に、即ち前足部２１の断面形状に対応した、４つの内壁面に囲まれた矩形状に、形成されている。圧入孔本体部１６の内縁形状は、多少の寸法誤差により、圧入孔本体部１６の断面寸法の方が前足部２１の断面寸法よりも大きめで圧入孔本体部１６と前足部２１との間に多少の隙間が生じるように形成されていてもよい。 The shape of the inner edge of the press-fit hole body portion 16 viewed from the rear is a shape that substantially matches the cross-sectional shape of the forefoot portion 21, that is, a rectangular shape surrounded by four inner wall surfaces corresponding to the cross-sectional shape of the forefoot portion 21. Is formed. The inner edge shape of the press-fit hole main body portion 16 is such that the cross-sectional dimension of the press-fit hole main body portion 16 is larger than the cross-sectional dimension of the forefoot portion 21 due to some dimensional error, and between the press-fit hole main body portion 16 and the front foot portion 21. You may form so that some clearance gap may arise.

また、端子圧入孔１４の内壁面の端子圧入方向における前端（端子圧入時の出口。）には、図２（ｂ）及び図２（ｃ）に示すように、前方に向けて端子収容空間１８が幅狭になるように傾斜した傾斜面１７ｃを有するテーパ部１７が、環状に突設されている。テーパ部１７は、図４に示すように、端子圧入孔１４の内縁形状を構成する上下左右の４つの内壁面それぞれの前端に、当該内壁面の幅方向（上下の内壁面においては左右方向、左右の内壁面においては上下方向。）に亘って形成されており、隣接する２つのテーパ部１７は一体に結合されて交差している。また、テーパ部１７は、図２（ｂ）及び図２（ｃ）に示すように、突出方向（左右方向）の先端１７ｂほど根元１７ａより肉厚が小さくなる略三角形状に形成されている。 Moreover, as shown in FIG.2 (b) and FIG.2 (c), as shown in FIG.2 (b) and FIG.2 (c), at the front end (exit at the time of terminal press-fit) of the inner wall face of the terminal press-fit hole 14 in the terminal press-fit direction, the terminal accommodating space 18 is provided. A taper portion 17 having an inclined surface 17c that is inclined so as to be narrow is formed in an annular shape. As shown in FIG. 4, the tapered portion 17 is formed at the front end of each of the four upper and lower inner walls constituting the inner edge shape of the terminal press-fitting hole 14 in the width direction of the inner wall surface (the left and right directions on the upper and lower inner wall surfaces, The left and right inner wall surfaces are formed in the vertical direction.) The two adjacent taper portions 17 are integrally joined and intersect. Further, as shown in FIGS. 2B and 2C, the tapered portion 17 is formed in a substantially triangular shape whose thickness is smaller than the root 17a at the tip 17b in the protruding direction (left and right direction).

また、図２（ｃ）に示すように、テーパ部１７の端子圧入方向における前側側面１７ｄは端子圧入方向に直交する平坦面として形成されており、これにより、テーパ部１７の断面形状が略三角形状に形成されている。前側側面１７ｄは、コネクタハウジング１０の壁部１２の前端面１２ａと面一に形成されている。 Further, as shown in FIG. 2C, the front side surface 17d in the terminal press-fitting direction of the taper portion 17 is formed as a flat surface orthogonal to the terminal press-fitting direction, so that the cross-sectional shape of the taper portion 17 is substantially triangular. It is formed into a shape. The front side surface 17 d is formed flush with the front end surface 12 a of the wall portion 12 of the connector housing 10.

テーパ部１７は、図３（ｂ）に示すように、端子圧入孔１４に前足部２１を圧入した際には、前足部２１により押圧されることで、端子圧入方向の前方に向けてバリ状に塑性変形する。これにより、テーパ部１７の一部が、端子収容空間１８の外部に突出する。このとき、突出した当該テーパ部１７の一部における傾斜面１７ｃが、前足部２１の外側面に密着する。これにより、端子圧入孔１４と前足部２１との隙間が封じられる。テーパ部１７は、確実に前足部２１の圧入時に塑性変形するように、図４（ａ）に示すように、対向するテーパ部１７の内寸が前足部２１の対向面幅よりも小さく設定されている。 As shown in FIG. 3B, the taper portion 17 is burred toward the front in the terminal press-fitting direction by being pressed by the front foot portion 21 when the front foot portion 21 is press-fitted into the terminal press-fitting hole 14. Plastically deformed. Thereby, a part of the taper portion 17 protrudes outside the terminal accommodating space 18. At this time, the inclined surface 17 c in a part of the protruding tapered portion 17 is in close contact with the outer surface of the forefoot portion 21. Thereby, the clearance gap between the terminal press-fit hole 14 and the forefoot part 21 is sealed. As shown in FIG. 4 (a), the taper portion 17 is set so that the inner dimension of the opposed taper portion 17 is smaller than the facing surface width of the forefoot portion 21 so as to be plastically deformed when the forefoot portion 21 is press-fitted. ing.

次に、上述したコネクタハウジング１０と端子２０を用いてコネクタ１を組み立てる手順について説明する。 Next, a procedure for assembling the connector 1 using the connector housing 10 and the terminals 20 described above will be described.

コネクタ１を組み立てる場合には、図１に示すように、コネクタハウジング１０の後方から前足部２１を嵌合穴１１に挿入し、当該前足部２１を端子圧入孔１４に圧入する。 When assembling the connector 1, as shown in FIG. 1, the front foot 21 is inserted into the fitting hole 11 from the rear of the connector housing 10, and the front foot 21 is press-fitted into the terminal press-fit hole 14.

圧入すると、前足部２１が、環状のテーパ部１７を端子圧入方向の前方に向けてバリ状に塑性変形させる。つまり、図４（ａ）、図４（ｂ）の状態において前足部２１を矢印Ｓの方向に圧入すると、図４（ｃ）、図４（ｄ）、図４（ｅ）に示すように、環状のテーパ部１７が端子圧入方向の前方に向けてバリ状に塑性変形する。そして、テーパ部１７の塑性変形により形成されるバリが前足部２１の外側面に密着して、端子圧入孔１４と前足部２１との間の隙間を封じる。また、端子２０のクサビ形状部２４が圧入孔本体部１６の入口を塑性変形させながら当該圧入孔本体部１６に圧入され、幅広部２３が端子圧入孔１４の入口の収容部１５の底面に当接することで、端子２０がそれ以上挿入されないように位置決めされる。 When press-fitted, the forefoot part 21 plastically deforms the annular taper part 17 in a burr shape toward the front in the terminal press-fitting direction. That is, when the forefoot portion 21 is press-fitted in the direction of the arrow S in the state of FIGS. 4A and 4B, as shown in FIGS. 4C, 4D, and 4E, The annular taper portion 17 is plastically deformed in a burr shape toward the front in the terminal press-fitting direction. And the burr | flash formed by the plastic deformation of the taper part 17 closely_contact | adheres to the outer surface of the front foot part 21, and the clearance gap between the terminal press-fit hole 14 and the front foot part 21 is sealed. In addition, the wedge-shaped portion 24 of the terminal 20 is press-fitted into the press-fitting hole main body 16 while plastically deforming the inlet of the press-fitting hole main body 16, and the wide portion 23 contacts the bottom surface of the receiving portion 15 of the inlet of the terminal press-fitting hole 14. By contacting, the terminal 20 is positioned so as not to be inserted any more.

このとき、テーパ部１７の端子圧入方向における後側の側面が、端子圧入方向前方に向けて傾斜した傾斜面１７ｃとして形成されているために、前足部２１の圧入によるテーパ部１７の塑性変形がスムーズに進行する。これにより、安定した形状のバリが形成され、端子圧入孔１４と前足部２１との間の隙間が当該バリによって塞がれる。 At this time, since the rear side surface of the taper portion 17 in the terminal press-fitting direction is formed as an inclined surface 17c inclined toward the front in the terminal press-fitting direction, the plastic deformation of the taper portion 17 due to the press-fitting of the front foot portion 21 occurs. Proceeds smoothly. Thereby, the burr | flash of the stable shape is formed and the clearance gap between the terminal press-fit hole 14 and the front foot part 21 is block | closed by the said burr | flash.

したがって、端子圧入後に、図３に示すように、コネクタハウジング１０の嵌合穴１１の内底部の溝部１３に液状の封止剤３０がポッティングされた際に、端子圧入孔１４と前足部２１の隙間に入り込んだ封止剤３０が、反対側（壁部１２の前端面１２ａ側、コネクタハウジング１０の外部。）に漏れ出るのを防止することができる。そして、封止剤３０が固化することによって、端子圧入孔１４と前足部２１との間の隙間を確実にシールすることができる。 Therefore, after the terminal press-fitting, as shown in FIG. 3, when the liquid sealant 30 is potted in the groove 13 in the inner bottom part of the fitting hole 11 of the connector housing 10, the terminal press-fitting hole 14 and the front foot part 21 It is possible to prevent the sealant 30 that has entered the gap from leaking to the opposite side (the front end surface 12a side of the wall 12 and the outside of the connector housing 10). And the clearance gap between the terminal press-fit hole 14 and the forefoot part 21 can be reliably sealed because the sealing agent 30 solidifies.

次に、図５を参照して、本実施形態に係るコネクタハウジング１０の作用を更に説明する。図５は、第１の実施形態に係るコネクタハウジング１０の作用を説明するための説明図で、図５（ａ）は端子１２０を圧入する前の端子収容孔１１４と端子１２０との関係を示す、端子圧入方向の後側から見た断面図、図５（ｂ）は端子１２０を圧入した状態を示す、端子圧入方向の後側から見た断面図、図５（ｃ）は図５（ｂ）のＶｃ−Ｖｃ矢視断面図である。 Next, the operation of the connector housing 10 according to the present embodiment will be further described with reference to FIG. FIG. 5 is an explanatory diagram for explaining the operation of the connector housing 10 according to the first embodiment. FIG. 5A shows the relationship between the terminal receiving hole 114 and the terminal 120 before the terminal 120 is press-fitted. FIG. 5B is a cross-sectional view seen from the rear side of the terminal press-fitting direction, and FIG. 5B is a cross-sectional view seen from the rear side of the terminal press-fitting direction. It is a Vc-Vc arrow sectional view of).

図５に示す、図１２に示した従来のコネクタには、本実施形態に係るコネクタハウジング１０のように、端子圧入孔１４の前端にテーパ部１７が形成されていない。そして、矩形状断面の端子収容孔１１４の幅寸法（図５中における左右方向の寸法。）が、矩形状断面のオス端子１２１の幅寸法よりも小さめに形成されているものの、矩形状断面の端子収容孔１１４の高さ寸法（図５中におけるの上下方向の寸法。）が矩形状断面のオス端子１２１の高さ寸法よりも大きめに形成されている。このように形成された端子収容孔１１４に対してオス端子１２１が矢印Ｓ方向に圧入されると、図５（ｂ）、図５（ｃ）に示すように端子収容孔１１４の内壁面が変形する。つまり、端子収容孔１１４及びオス端子１２１の幅方向については、端子収容孔１１４の開口付近の内壁面がオス端子１２１の押圧移動に引きずられて塑性変形してバリ１１７となり、バリ１１７がオス端子１２１の外側面に密着することで、端子収容孔１１４とオス端子１２１との間の隙間が封じられる。一方、端子収容孔１１４及びオス端子１２１の高さ方向については、端子収容孔１１４とオス端子１２１の高さ方向の寸法差は圧入前よりも小さくなるものの、上述したようなバリが形成されず、依然として端子収容孔１１４とオス端子１２１との間に比較的大きめの隙間１１６が残ってしまう虞がある。 The conventional connector shown in FIG. 12 shown in FIG. 5 does not have a tapered portion 17 formed at the front end of the terminal press-fitting hole 14 unlike the connector housing 10 according to this embodiment. And although the width dimension (the dimension of the left-right direction in FIG. 5) of the terminal accommodating hole 114 of a rectangular cross section is formed smaller than the width dimension of the male terminal 121 of a rectangular cross section, The height dimension of the terminal receiving hole 114 (the vertical dimension in FIG. 5) is formed to be larger than the height dimension of the male terminal 121 having a rectangular cross section. When the male terminal 121 is press-fitted in the arrow S direction with respect to the terminal accommodation hole 114 formed in this way, the inner wall surface of the terminal accommodation hole 114 is deformed as shown in FIGS. 5B and 5C. To do. That is, in the width direction of the terminal receiving hole 114 and the male terminal 121, the inner wall surface in the vicinity of the opening of the terminal receiving hole 114 is dragged by the pressing movement of the male terminal 121 to plastically deform to become a burr 117, and the burr 117 becomes the male terminal. By closely contacting the outer surface of 121, the gap between the terminal accommodation hole 114 and the male terminal 121 is sealed. On the other hand, regarding the height direction of the terminal receiving hole 114 and the male terminal 121, although the dimensional difference in the height direction between the terminal receiving hole 114 and the male terminal 121 is smaller than that before press-fitting, the above-described burrs are not formed. There is still a possibility that a relatively large gap 116 remains between the terminal receiving hole 114 and the male terminal 121.

これに対して、第１の実施形態に係るコネクタハウジング１０によれば、端子圧入孔１４に前足部２１を圧入した際に、端子圧入孔１４の端子圧入方向における前端に、環状のテーパ部１７の塑性変形によるバリを形成することができるので、端子圧入孔１４と前足部２１の間の隙間を、前足部２１の外側面に密着するバリ（テーパ部１７）によって塞ぐことができる。 On the other hand, according to the connector housing 10 according to the first embodiment, when the front foot portion 21 is press-fitted into the terminal press-fitting hole 14, the annular tapered portion 17 is formed at the front end of the terminal press-fitting hole 14 in the terminal press-fitting direction. Since the burr | flash by plastic deformation of this can be formed, the clearance gap between the terminal press-fit hole 14 and the front foot part 21 can be block | closed by the burr | flash (taper part 17) closely_contact | adhered to the outer surface of the front foot part 21. FIG.

（他の実施形態）
続いて、第１の実施形態以外の他の実施形態について説明する。まず、図６を参照して他の実施形態が解決しようとする課題について説明する。
図６は、コネクタハウジング１０の更なる課題について説明するための図で、テーパ部１７の４隅の変形抵抗が高いためにテーパ部１７の塑性変形が不均一に進行し、テーパ部１７の塑性変形により形成されるバリと端子２０との間に大きめの隙間ができた場合を示す斜視図である。 (Other embodiments)
Subsequently, other embodiments than the first embodiment will be described. First, a problem to be solved by another embodiment will be described with reference to FIG.
FIG. 6 is a diagram for explaining a further problem of the connector housing 10. Since the deformation resistance of the four corners of the taper portion 17 is high, the plastic deformation of the taper portion 17 proceeds unevenly, and the plasticity of the taper portion 17 is illustrated. FIG. 5 is a perspective view showing a case where a large gap is formed between a burr formed by deformation and a terminal 20.

前述した第１実施形態に係るコネクタハウジング１０のように、端子圧入孔１４の内壁面に矩形環状にテーパ部１７を設けた場合、矩形状断面を構成する前足部２１の辺部に相当する平坦な側面に接触する部分である辺部１７ｇよりも、角部に接触する部分である隅部１７ｆの変形抵抗が大きくなりやすい。即ち、図６に示すように、矩形状断面の前足部２１の一方の対向する２辺に直交する平面をＸ面、他方の対向する２辺に直交する平面をＹ面とするとき、隣り合う２辺に設けられたテーパ部１７のうち、Ｘ面に直交する第１の側面２１Ｘによって変形させられる第１のテーパ部１７Ｘは、Ｘ面内で、矢印Ｔ１に示すように、端子２０の外側面から離れる方向に変形しようとする。また、Ｙ面に直交する第２の側面２１Ｙによって変形させられる第２のテーパ部１７Ｙは、Ｙ面内で、矢印Ｔ２に示すように、端子２０の外側面から離れる方向に変形しようとする。 When the tapered portion 17 is provided in a rectangular ring shape on the inner wall surface of the terminal press-fitting hole 14 as in the connector housing 10 according to the first embodiment described above, a flat corresponding to the side portion of the forefoot portion 21 constituting the rectangular cross section. The deformation resistance of the corner portion 17f that is a portion in contact with the corner portion is likely to be larger than that of the side portion 17g that is a portion in contact with the side surface. That is, as shown in FIG. 6, when the plane perpendicular to one opposite two sides of the forefoot portion 21 of the rectangular cross section is the X plane and the plane perpendicular to the other two opposite sides is the Y plane, they are adjacent to each other. Of the taper portions 17 provided on the two sides, the first taper portion 17X deformed by the first side surface 21X orthogonal to the X plane is outside the terminal 20 as indicated by an arrow T1 in the X plane. Attempts to deform away from the side. Further, the second taper portion 17Y deformed by the second side surface 21Y orthogonal to the Y plane tends to be deformed in the direction away from the outer surface of the terminal 20 as indicated by an arrow T2 in the Y plane.

しかしながら、隅部１７ｆは、前足部２１の平坦な側面２１Ｘ、２１Ｙが接触する部分と比較して、変形抵抗（剛性）が大きく、変形しにくいため、塑性変形する場合には、図６に示すように前足部２１に引きずられる様に変形する。この結果、矩形環状のテーパ部１７には、不均等な応力が発生し、テーパ部１７の隅部１７ｆと辺部１７ｇとを比較すると、辺部１７ｇに隙間ができやすくなる。 However, the corner portion 17f has a large deformation resistance (rigidity) and is difficult to deform as compared to the portion where the flat side surfaces 21X and 21Y of the forefoot portion 21 are in contact with each other. It is deformed so as to be dragged by the forefoot part 21. As a result, uneven stress is generated in the rectangular annular taper portion 17, and when the corner portion 17f of the taper portion 17 is compared with the side portion 17g, a gap is easily formed in the side portion 17g.

これに対して、以下に説明する他の実施形態に係るコネクタハウジングでは、端子圧入孔１４の４つの内壁面それぞれの前端に形成されたテーパ部１７のうちの隣接する２つのテーパ部１７が交差する隅部１７ｆに、テーパ部１７の傾斜面１７ｃの先端から端子圧入孔１４の内壁面に向けて窪む凹部が形成されている。これにより、テーパ部１７の隅部１７ｆにおける剛性が低下するため、矩形環状のテーパ部１７の全体が均等に変形しやすい。したがって、テーパ部１７の辺部１７ｇの隙間を小さくすることができ、テーパ部１７の全周にわたる隙間の総量を小さくすることができ、封止剤の漏れ防止効果を高めることができる。 On the other hand, in the connector housing according to another embodiment described below, two adjacent tapered portions 17 among the tapered portions 17 formed at the front ends of the four inner wall surfaces of the terminal press-fitting hole 14 intersect each other. A concave portion that is recessed from the tip of the inclined surface 17c of the tapered portion 17 toward the inner wall surface of the terminal press-fitting hole 14 is formed in the corner portion 17f. Thereby, since the rigidity in the corner part 17f of the taper part 17 falls, the whole rectangular annular taper part 17 tends to deform | transform uniformly. Therefore, the gap between the side portions 17g of the taper portion 17 can be reduced, the total amount of the gap over the entire circumference of the taper portion 17 can be reduced, and the leakage preventing effect of the sealant can be enhanced.

（第２の実施形態）
図７は、図６で示した課題を解決するための第２の実施形態に係るコネクタハウジング１０ａにおける端子圧入孔１４の構成図で、図７（ａ）は断面斜視図、図７（ｂ）は端子圧入方向の後側から見た後面図である。図８は、上記第２の実施形態に係るコネクタハウジング１０ａの端子圧入孔１４に端子２０を圧入した場合の説明図で、端子が圧入されることでテーパ部１７が塑性変形してバリとして形成された状態を示す、端子圧入方向前方から見た斜視図である。 (Second Embodiment)
7 is a configuration diagram of the terminal press-fitting hole 14 in the connector housing 10a according to the second embodiment for solving the problem shown in FIG. 6, and FIG. 7 (a) is a sectional perspective view, and FIG. 7 (b). These are the rear views seen from the rear side of the terminal press-fitting direction. FIG. 8 is an explanatory view when the terminal 20 is press-fitted into the terminal press-fitting hole 14 of the connector housing 10a according to the second embodiment. When the terminal is press-fitted, the taper portion 17 is plastically deformed to form a burr. It is the perspective view seen from the terminal press-fit direction front which shows the state performed.

第２の実施形態では、凹部として、隅部１７ｆにおいて交差する２つのテーパ部１７の結合を断つスリット１７ｓが形成されている。即ち、隅部１７ｆにおいて隣接する２つのテーパ部の間に間隙が形成されるように、スリット１７ｓが、テーパ部１７の先端から根元に亘って、交差する２つのテーパ部１７の傾斜面１７ｃの交線に沿って形成されている。また、スリット１７ｓは、端子収容空間１８の外部であるコネクタハウジング１０の外部空間と連通している。 In the second embodiment, a slit 17 s that cuts off the coupling between the two tapered portions 17 that intersect at the corner portion 17 f is formed as the concave portion. That is, the slits 17s are formed on the inclined surfaces 17c of the two taper portions 17 intersecting from the tip of the taper portion 17 to the root so that a gap is formed between two adjacent taper portions in the corner portion 17f. It is formed along the line of intersection. The slit 17 s communicates with the external space of the connector housing 10 that is outside the terminal accommodating space 18.

このような構成とすれば、端子圧入孔１４の４つの内壁面それぞれに形成されたテーパ部１７間の結合を断つことができる。このため、図８に示すように、前足部２１が圧入される際に、各テーパ部１７が、４つの隅部１７ｆに拘束されずに自由に塑性変形できる。これにより、４つの隅部１７ｆにおけるテーパ部１７と前足部２１の外側面との間の隙間が塞がれるため、当該部分から封止剤３０が漏れ出ることが防止される。したがって、テーパ部１７の塑性変形の不均一を改善することができ、バリ（テーパ部１７）の前足部２１の外側面への密着性を高めることができる。これにより、端子圧入孔１４と前足部２１の間の隙間をバリ（テーパ部１７）によって効果的に塞ぐことができ、封止剤の漏れ防止効果を向上させることができる。 With such a configuration, the connection between the tapered portions 17 formed on each of the four inner wall surfaces of the terminal press-fit hole 14 can be broken. For this reason, as shown in FIG. 8, when the front foot portion 21 is press-fitted, each tapered portion 17 can be freely plastically deformed without being constrained by the four corner portions 17f. Thereby, since the clearance gap between the taper part 17 in the four corner parts 17f and the outer surface of the front foot part 21 is block | closed, it is prevented that the sealing agent 30 leaks out from the said part. Therefore, the nonuniformity of the plastic deformation of the taper portion 17 can be improved, and the adhesion of the burr (taper portion 17) to the outer surface of the front foot portion 21 can be enhanced. Thereby, the clearance gap between the terminal press-fit hole 14 and the front foot part 21 can be effectively closed by the burr | flash (taper part 17), and the leak prevention effect of a sealing agent can be improved.

（第３の実施形態）
図９は、図６で示した課題を解決するための第３の実施形態に係るコネクタハウジング１０ｂにおける端子圧入孔１４の構成図で、図９（ａ）は断面斜視図、図９（ｂ）は端子圧入方向の後側から見た後面図である。 (Third embodiment)
FIG. 9 is a configuration diagram of the terminal press-fitting hole 14 in the connector housing 10b according to the third embodiment for solving the problem shown in FIG. 6, and FIG. 9 (a) is a sectional perspective view, and FIG. 9 (b). These are the rear views seen from the rear side of the terminal press-fitting direction.

第３の実施形態では、凹部として、隅部１７ｆに、該隅部１７ｆの肉厚を減じて剛性を低下させるための凹溝１７ｔが形成されている。即ち、隅部１７ｆには、傾斜面１７ｃの傾斜方向から視て円弧状の内縁形状を有する凹溝１７ｔが、テーパ部１７の先端から根元に亘って、交差する２つのテーパ部１７の傾斜面１７ｃの交線に沿って形成されている。また、凹溝１７ｔは、端子収容空間１８の外部であるコネクタハウジング１０の外部空間と連通している。 In the third embodiment, a concave groove 17t for reducing the thickness of the corner 17f by reducing the thickness of the corner 17f is formed as a concave portion in the corner 17f. That is, a concave groove 17t having an arcuate inner edge shape when viewed from the inclination direction of the inclined surface 17c is formed in the corner portion 17f, and the inclined surfaces of the two tapered portions 17 intersecting from the tip of the tapered portion 17 to the root. It is formed along the intersection line 17c. Further, the concave groove 17 t communicates with the external space of the connector housing 10, which is outside the terminal accommodating space 18.

（第４の実施形態）
図１０は、図６で示した課題を解決するための第４の実施形態に係るコネクタハウジング１０ｃにおける端子圧入孔１４の構成図で、図１０（ａ）は断面斜視図、図１０（ｂ）は端子圧入方向の後側から見た後面図である。図１１は、上記第３の実施形態及び第４の実施形態に係るコネクタハウジング１０ｂ，１０ｃの端子圧入孔１４に端子２０を圧入した場合の説明図で、端子２０が圧入されることでテーパ部１７が塑性変形してバリとして形成された状態を示す、端子圧入方向前方から見た斜視図である。 (Fourth embodiment)
FIG. 10 is a configuration diagram of the terminal press-fitting hole 14 in the connector housing 10c according to the fourth embodiment for solving the problem shown in FIG. 6, and FIG. 10 (a) is a sectional perspective view, and FIG. 10 (b). These are the rear views seen from the rear side of the terminal press-fitting direction. FIG. 11 is an explanatory view when the terminal 20 is press-fitted into the terminal press-fitting hole 14 of the connector housings 10b and 10c according to the third embodiment and the fourth embodiment, and the taper portion is obtained when the terminal 20 is press-fitted. It is the perspective view seen from the terminal press-fit direction front which shows the state which 17 deform | transformed plastically and was formed as a burr | flash.

第４の実施形態では、凹部として、隅部１７ｆの端子圧入方向の前側側面に、該隅部１７ｆにおけるテーパ部１７の先端側の肉厚を減じて剛性を低下させるための凹み１７ｕが形成されている。即ち、隅部１７ｆには、凹み１７ｕが、テーパ部１７の先端から該先端と根元との中間部分に亘って形成されている。また、凹み１７ｕは、端子収容空間１８の外部であるコネクタハウジング１０の外部空間と連通している。 In the fourth embodiment, a recess 17u is formed on the front side surface of the corner 17f in the terminal press-fitting direction as a recess to reduce the rigidity of the corner 17f by reducing the thickness of the tip end side of the tapered portion 17 at the corner 17f. ing. That is, a recess 17u is formed in the corner portion 17f from the tip of the taper portion 17 to an intermediate portion between the tip and the root. In addition, the recess 17 u communicates with the external space of the connector housing 10 that is outside the terminal accommodating space 18.

これら第３、第４実施形態のように構成した場合は、図１１に示すように、前足部２１の圧入時に、矩形環状のテーパ部１７の４つの隅部１７ｆの変形抵抗を減らすことができ、テーパ部１７を均一に塑性変形させることができる。したがって、テーパ部１７の塑性変形により形成されるバリの前足部２１の外側面への密着性を高めることができ、端子圧入孔１４と前足部２１の間の隙間をバリ（テーパ部１７）によって効果的に塞ぐことができ、封止剤の漏れ防止効果を向上させることができる。 When configured as in the third and fourth embodiments, as shown in FIG. 11, the deformation resistance of the four corner portions 17f of the rectangular annular taper portion 17 can be reduced when the front foot portion 21 is press-fitted. The taper portion 17 can be uniformly plastically deformed. Therefore, the adhesiveness of the burr formed by plastic deformation of the taper part 17 to the outer surface of the front foot part 21 can be enhanced, and the gap between the terminal press-fitting hole 14 and the front foot part 21 is made by the burr (taper part 17). It can be effectively blocked and the sealing agent leakage preventing effect can be improved.

以下では、実施形態に係るコネクタハウジングの作用及び効果を説明する。 Below, the effect | action and effect of the connector housing which concern on embodiment are demonstrated.

実施形態に係るコネクタハウジング１０，１０ａ，１０ｂ，１０ｃは、端子２０が挿入されて収容される端子収容空間１８を画成する端子圧入孔１４（挿入孔）が穿設された樹脂製のハウジングであって、端子圧入孔１４の内壁面の、端子２０が挿入される向きにおける前端には、該向きにおける前方に向けて端子収容空間１８が幅狭になるように傾斜した傾斜面１７ｃを有するテーパ部１７が突設され、端子２０が端子圧入孔１４に挿入されて該端子圧入孔１４を貫通し、テーパ部１７に圧入された場合には、テーパ部１７の一部が、前方に変形して端子収容空間１８の外部に突出し、突出したテーパ部１７の一部の傾斜面１７ｃが、端子２０の外側面に接触する。
これにより、端子２０が端子圧入孔１４に挿入されてテーパ部１７に圧入された場合に、端子圧入孔１４の前端における端子圧入孔１４の内壁面と端子２０との間の隙間を小さくできる。このため、インサート成形を用いることなく、端子圧入孔１４の内壁面と端子２０との間の隙間を水分が通過することを抑制でき、例えば、端子圧入孔１４の内壁面と端子２０との間の隙間をシールするために、端子収容空間１８に後側からポッティングされた封止剤３０が、端子圧入孔１４の前端における端子圧入孔１４の内壁面と端子２０との間の隙間から、端子収容空間１８の外部に浸出することを防止できる。
この結果、本実施形態に係るコネクタハウジング１０，１０ａ，１０ｂ，１０ｃによれば、製造コストを低減可能なハウジングを提供できる。 The connector housings 10, 10a, 10b, and 10c according to the embodiment are resin housings in which terminal press-fitting holes 14 (insertion holes) that define terminal accommodating spaces 18 into which the terminals 20 are inserted are accommodated. In addition, the front end of the inner wall surface of the terminal press-fitting hole 14 in the direction in which the terminal 20 is inserted has a tapered surface 17c inclined so that the terminal accommodating space 18 becomes narrower toward the front in the direction. When the portion 17 is protruded and the terminal 20 is inserted into the terminal press-fitting hole 14 and passes through the terminal press-fitting hole 14 and is press-fitted into the tapered portion 17, a part of the tapered portion 17 is deformed forward. Thus, a part of the inclined surface 17c of the protruding taper portion 17 contacts the outer surface of the terminal 20.
As a result, when the terminal 20 is inserted into the terminal press-fitting hole 14 and press-fitted into the tapered portion 17, the gap between the inner wall surface of the terminal press-fitting hole 14 and the terminal 20 at the front end of the terminal press-fitting hole 14 can be reduced. For this reason, it is possible to suppress moisture from passing through the gap between the inner wall surface of the terminal press-fitting hole 14 and the terminal 20 without using insert molding, for example, between the inner wall surface of the terminal press-fitting hole 14 and the terminal 20. The sealing agent 30 potted from the rear side into the terminal accommodating space 18 is sealed from the gap between the inner wall surface of the terminal press-fit hole 14 and the terminal 20 at the front end of the terminal press-fit hole 14. It is possible to prevent leaching out of the storage space 18.
As a result, according to the connector housings 10, 10a, 10b, and 10c according to the present embodiment, it is possible to provide a housing that can reduce the manufacturing cost.

また、実施形態に係るコネクタハウジング１０ａ，１０ｂ，１０ｃでは、端子２０が端子圧入孔１４に挿入される向きに視た端子圧入孔１４の内縁形状が、当該向きに視た端子２０の断面形状に対応した、４つの内壁面に囲まれた矩形状に形成され、該内壁面それぞれの前端には、テーパ部１７が内壁面の幅方向に亘って形成され、２つのテーパ部１７が交差する隅部１７ｆには、テーパ部１７の傾斜面１７ｃの先端から端子圧入孔１４の内壁面に向けて窪む凹部（スリット１７ｓ、凹溝１７ｔ、又は凹み１７ｕ）が形成されている。
これにより、当該凹部が無い場合には辺部１７ｇよりも剛性が高く変形しにくい隅部１７ｆにおける剛性が低下するため、テーパ部１７の全体が均等に変形しやすい。このため、端子圧入孔１４の内壁面と端子２０との間の隙間をより効果的に小さくすることができる。 In the connector housings 10a, 10b, and 10c according to the embodiment, the inner edge shape of the terminal press-fitting hole 14 viewed in the direction in which the terminal 20 is inserted into the terminal press-fitting hole 14 is the cross-sectional shape of the terminal 20 viewed in the direction. Correspondingly, it is formed in a rectangular shape surrounded by four inner wall surfaces, and at each front end of each inner wall surface, a tapered portion 17 is formed across the width direction of the inner wall surface, and the two taper portions 17 intersect each other. A recess (slit 17s, recess 17t, or recess 17u) that is recessed from the tip of the inclined surface 17c of the tapered portion 17 toward the inner wall surface of the terminal press-fit hole 14 is formed in the portion 17f.
Thereby, when there is no said recessed part, since the rigidity in the corner part 17f which has rigidity higher than the side part 17g and is hard to deform | transform will fall, the whole taper part 17 will be easy to deform | transform uniformly. For this reason, the gap between the inner wall surface of the terminal press-fitting hole 14 and the terminal 20 can be reduced more effectively.

また、実施形態に係るコネクタハウジング１０ａ，１０ｂでは、凹部（スリット１７ｓ又は凹溝１７ｔ）が、２つのテーパ部１７の傾斜面１７ｃが交差する交線に沿って形成されている。
これにより、剛性が高く変形しにくい隅部１７ｆにおける剛性をより効果的に低下させることができる。 In the connector housings 10a and 10b according to the embodiment, the recesses (slits 17s or recesses 17t) are formed along the intersection line where the inclined surfaces 17c of the two tapered portions 17 intersect.
Thereby, the rigidity at the corner 17f which is highly rigid and difficult to deform can be more effectively reduced.

また、実施形態に係るコネクタハウジング１０ａ，１０ｂ，１０ｃでは、凹部（スリット１７ｓ、凹溝１７ｔ、又は凹み１７ｕ）が、端子収容空間１８の外部に連通している。
これにより、剛性が高く変形しにくい隅部１７ｆにおける剛性をより効果的に低下させることができる。 In the connector housings 10 a, 10 b, and 10 c according to the embodiment, the recess (slit 17 s, recess 17 t, or recess 17 u) communicates with the outside of the terminal accommodating space 18.
Thereby, the rigidity at the corner 17f which is highly rigid and difficult to deform can be more effectively reduced.

尚、本発明の技術的範囲は、上述した実施形態に限定されるものではない。上述した実施形態は、本発明の技術的範囲内で種々の変形や改良等を伴うことができる。 The technical scope of the present invention is not limited to the embodiment described above. The above-described embodiments can be accompanied by various modifications and improvements within the technical scope of the present invention.

１コネクタ
１０コネクタハウジング
１１嵌合穴
１２壁部
１３溝部
１４端子圧入孔（挿入孔）
１５収容部
１６圧入孔本体部
１７テーパ部
１７ａ根元
１７ｂ先端
１７ｃ傾斜面
１７ｄ前側側面
１７ｆ隅部
１７ｓスリット（凹部）
１７ｔ凹溝（凹部）
１７ｕ凹み（凹部）
１８端子収容空間
２０端子
２１前足部
２２オス端子部
２３幅広部
２４クサビ形状部
３０封止剤 DESCRIPTION OF SYMBOLS 1 Connector 10 Connector housing 11 Fitting hole 12 Wall part 13 Groove part 14 Terminal press-fit hole (insertion hole)
DESCRIPTION OF SYMBOLS 15 Storage part 16 Press-fit hole main-body part 17 Tapered part 17a Base 17b Tip 17c Inclined surface 17d Front side surface 17f Corner part 17s Slit (recessed part)
17t groove (concave)
17u dent (concave)
18 Terminal accommodating space 20 Terminal 21 Forefoot part 22 Male terminal part 23 Wide part 24 Wedge shaped part 30 Sealant

Claims

A resin housing having an insertion hole that defines a terminal accommodating space in which a terminal is inserted and accommodated,
At the front end of the inner wall surface of the insertion hole in the direction in which the terminal is inserted, a taper portion having an inclined surface inclined so as to narrow the terminal accommodating space toward the front in the direction is provided. ,
When the terminal is inserted into the insertion hole, penetrates the insertion hole, and is press-fitted into the taper portion, a part of the taper portion is deformed forward in the direction to be outside the terminal accommodating space. The inclined surface of a part of the protruding taper portion is in contact with the outer surface of the terminal ,
An inner edge shape of the insertion hole viewed in the direction is formed in a rectangular shape surrounded by four inner wall surfaces corresponding to a cross-sectional shape of the terminal viewed in the direction, and the front end of each of the inner wall surfaces The tapered portion is formed across the width direction of the inner wall surface,
In each of the inclined surfaces located at the four corners where the adjacent tapered portions intersect, from the tip to the root of the inclined surface, along the intersection line where the inclined surfaces of the adjacent tapered portions intersect, A ditch is formed,
A housing characterized by that.

A resin housing having an insertion hole that defines a terminal accommodating space in which a terminal is inserted and accommodated,
At the front end of the inner wall surface of the insertion hole in the direction in which the terminal is inserted, a taper portion having an inclined surface inclined so as to narrow the terminal accommodating space toward the front in the direction is provided. ,
When the terminal is inserted into the insertion hole, penetrates the insertion hole, and is press-fitted into the taper portion, a part of the taper portion is deformed forward in the direction to be outside the terminal accommodating space. The inclined surface of a part of the protruding taper portion is in contact with the outer surface of the terminal ,
An inner edge shape of the insertion hole viewed in the direction is formed in a rectangular shape surrounded by four inner wall surfaces corresponding to a cross-sectional shape of the terminal viewed in the direction, and the front end of each of the inner wall surfaces The tapered portion is formed across the width direction of the inner wall surface,
In each of the inclined surfaces located at the four corners where the adjacent tapered portions intersect, a recess is formed from the tip of the inclined surface to an intermediate portion between the tip and the root,
A housing characterized by that.

The concave groove or the recess communicates with the outside of the terminal accommodating space.
The housing according to claim 1 or 2 , characterized by the above-mentioned.