JP6471061B2 - Waterproof connector mounting structure - Google Patents
Waterproof connector mounting structureInfo
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- JP6471061B2 JP6471061B2 JP2015142651A JP2015142651A JP6471061B2 JP 6471061 B2 JP6471061 B2 JP 6471061B2 JP 2015142651 A JP2015142651 A JP 2015142651A JP 2015142651 A JP2015142651 A JP 2015142651A JP 6471061 B2 JP6471061 B2 JP 6471061B2
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Description
本発明は、小型の防水型コネクタの取り付け構造に関する。 The present invention relates to a mounting structure for a small waterproof connector.
携帯型の電子機器において、イヤホン用のジャックコネクタ等に小型の防水型コネクタが用いられている（例えば、特許文献１）。 In portable electronic devices, small waterproof connectors are used for jack connectors for earphones (for example, Patent Document 1).
図１０は、特許文献１に開示された防水型コネクタ１００を示す分解斜視図である。防水型コネクタ１００は、下側ハウジング１１１と、上側ハウジング１１２と、キャップ１２０と、下側ハウジング１１１にインサート成型によって埋設された端子部材１１３と、を備えた防水型コネクタ１００であって、下側ハウジング１１１は光吸収材料からなるとともに、上側ハウジング１１２は光透過材料からなる。そして、下側ハウジング１１１と上側ハウジング１１２とを接合するレーザ溶着部１３０が形成される。さらに、下側ハウジング１１１は下側フランジ部１１１ｃを備え、上側ハウジング１１２は上側フランジ部１１２ｃを備える。キャップ１２０は、下側フランジ部１１１ｃ及び上側フランジ部１１２ｃにより構成されるハウジング側フランジ部１１０ｃに対向する位置に、キャップ側フランジ部１２０ｃを備える。さらに、ハウジング側フランジ部１１０ｃとキャップ側フランジ部１２０ｃとを接合する超音波溶着部１３３が形成された。 FIG. 10 is an exploded perspective view showing the waterproof connector 100 disclosed in Patent Document 1. As shown in FIG. The waterproof connector 100 is a waterproof connector 100 including a lower housing 111, an upper housing 112, a cap 120, and a terminal member 113 embedded in the lower housing 111 by insert molding. The housing 111 is made of a light absorbing material, and the upper housing 112 is made of a light transmitting material. And the laser welding part 130 which joins the lower housing 111 and the upper housing 112 is formed. Further, the lower housing 111 includes a lower flange portion 111c, and the upper housing 112 includes an upper flange portion 112c. The cap 120 includes a cap-side flange portion 120c at a position facing the housing-side flange portion 110c configured by the lower flange portion 111c and the upper flange portion 112c. Furthermore, an ultrasonic welding part 133 for joining the housing side flange part 110c and the cap side flange part 120c was formed.
この構成によれば、下側ハウジング１１１と上側ハウジング１１２とは、レーザ溶着により接合されるので、フランジ部が突出して設けられる必要がなく、小型化を図ることができる。また、ハウジング側フランジ部１１０ｃの下側ハウジング１１１と上側ハウジング１１２との境界部分に段差を生じやすいが、ハウジング側フランジ部１１０ｃにキャップ側フランジ部１２０ｃを超音波溶着する際に、フランジ部全体を一度に溶着するので、キャップ側フランジ部１２０ｃが全体的に溶けて段差を埋めることができ、確実な接合を行なうことができる。このとき、ハウジング側フランジ部１１０ｃ及びキャップ側フランジ部１２０ｃの寸法をできるだけ小さくすることにより、小型化を図っている。 According to this configuration, since the lower housing 111 and the upper housing 112 are joined by laser welding, the flange portion does not need to be provided so as to be miniaturized. Further, a step is likely to occur at the boundary between the lower housing 111 and the upper housing 112 of the housing side flange portion 110c, but when the cap side flange portion 120c is ultrasonically welded to the housing side flange portion 110c, the entire flange portion is Since welding is performed at a time, the cap-side flange portion 120c can be melted as a whole to fill the step, and reliable bonding can be performed. At this time, the housing side flange portion 110c and the cap side flange portion 120c are made as small as possible to reduce the size.
防水型コネクタ１００は図示しない電子機器等に装着される。キャップ側フランジ部１２０ｃとハウジング側フランジ部１１０ｃを熱溶着するので気密性に優れている。よって電子機器等に取り付けた場合に、防水型コネクタ１００の開口からセット内への水等の侵入を抑制できる。 The waterproof connector 100 is attached to an electronic device or the like (not shown). Since the cap side flange portion 120c and the housing side flange portion 110c are thermally welded, the airtightness is excellent. Therefore, when attached to an electronic device or the like, water or the like can be prevented from entering the set from the opening of the waterproof connector 100.
なお、この防水型コネクタ１００の取り付けには、図１１のような取り付け構造が適している。図１１は、防水型コネクタ１００の取り付け構造を示す事例であり、図１１（ａ）は取り付け前を示す模式図であり、図１１（ｂ）は取り付け後を示す模式図である。図１１（ａ）に示す防水用弾性部材１４０は、内径がキャップ１２０の外周に対応し、外径がセット側のコネクタ取り付け部に形成された筒状の被取り付け孔部１６１に対応した環状に成形されたものであり弾性変形することでキャップ１２０の外周、被取り付け孔部１６１のそれぞれに対し組み込み状態において圧接状態となるよう、組み込み前の初期寸法が設定されている。図１１（ｂ）に示すように、キャップ１２０の外周に防水用弾性部材１４０を嵌着して、被取り付け孔部１６１に挿入する。これにより、コネクタ取り付け部からセット内への水等の侵入を抑制できる。 An attachment structure as shown in FIG. 11 is suitable for attaching the waterproof connector 100. FIG. 11 is an example showing the attachment structure of the waterproof connector 100, FIG. 11 (a) is a schematic view showing before attachment, and FIG. 11 (b) is a schematic view showing after attachment. The waterproof elastic member 140 shown in FIG. 11 (a) has an inner diameter corresponding to the outer periphery of the cap 120, and an outer diameter corresponding to the cylindrical mounting hole 161 formed in the connector mounting portion on the set side. The initial dimensions before assembling are set so that they are molded and elastically deformed so as to be in a pressure contact state in the assembled state with respect to the outer periphery of the cap 120 and the mounting hole 161. As shown in FIG. 11B, the waterproof elastic member 140 is fitted on the outer periphery of the cap 120 and inserted into the attachment hole 161. Thereby, the penetration | invasion of the water etc. into a set from a connector attaching part can be suppressed.
これらによって、防水型コネクタ１００の開口及びコネクタ取り付け部からセット内への水等の侵入を抑制できる。 By these, intrusion of water or the like from the opening of the waterproof connector 100 and the connector mounting portion into the set can be suppressed.
しかしながら、小型の防水型コネクタにおいて、キャップを筒状の被取り付け孔部に防水用弾性部材を介して取り付けする場合、防水用弾性部材が被取り付け孔部の周囲に当接してめくれ、取り付け部におけるシール性が損なわれることが懸念された。よって、この場合には注意深く組み込む必要があり作業性が低下してしまう。このため、組み込み時の作業性を低下させることなく、安定してシール性を得ることが可能となる取り付け構造が必要とされた。 However, in a small waterproof connector, when the cap is attached to the cylindrical attachment hole portion via the waterproof elastic member, the waterproof elastic member abuts around the attachment hole portion, There was concern that the sealing performance would be impaired. Therefore, in this case, it is necessary to incorporate carefully, and workability is reduced. For this reason, an attachment structure that can stably obtain a sealing property without deteriorating workability at the time of assembly is required.
本発明は、上述した課題を解決するもので、レーザ溶着などの接合によって防水コネクタ構造を提供するのと同時に、組み込み時の作業性を低下させることなく、安定してシール性を得ることが可能となる防水型コネクタの取り付け構造を提供することを目的とする。 The present invention solves the above-mentioned problems, and at the same time providing a waterproof connector structure by joining such as laser welding, and at the same time, it is possible to stably obtain a sealing property without deteriorating workability during assembly. An object of the present invention is to provide a waterproof connector mounting structure.
本発明は、被取り付け部材に取り付ける防水型コネクタの取り付け構造であって、前記防水型コネクタは、開口を有し内部に収容空間が形成されたハウジングと、前記ハウジングの前記開口に繋がる貫通孔を有する筒部が形成されたキャップと、前記ハウジングの内外を貫通する端子と、を備え、前記ハウジングは前記開口を囲む環状の接合部を有し、前記キャップは、前記筒部の外周側から外方に突出するフランジ部を有し、前記フランジ部が前記接合部に溶着されて前記ハウジングと一体化され、前記被取り付け部材には、前記筒部を挿入可能な筒状の孔部が設けられており、前記筒部が前記孔部に挿入される際に前記筒部の外周側に嵌着され、前記孔部の内周面との隙間を封止する防水用弾性部材と、前記孔部の前記内周面に接触しない寸法に形成され前記防水用弾性部材の前記フランジ部と反対方向への移動を規制するとともに前記防水用弾性部材を所望の形状に保持する規制部材と、を備えることを特徴とする。 The present invention is a waterproof connector mounting structure to be attached to a member to be mounted, and the waterproof connector includes a housing having an opening and a housing space formed therein, and a through hole connected to the opening of the housing. A cap having a cylindrical portion formed therein and a terminal penetrating the inside and outside of the housing, the housing having an annular joint portion surrounding the opening, and the cap being externally disposed from an outer peripheral side of the cylindrical portion. The flange portion is welded to the joint portion and integrated with the housing, and the attached member is provided with a cylindrical hole portion into which the tubular portion can be inserted. A waterproof elastic member that is fitted to the outer peripheral side of the cylindrical portion when the cylindrical portion is inserted into the hole portion and seals a gap between the inner peripheral surface of the hole portion and the hole portion. Do not touch the inner peripheral surface of Wherein the formed dimensioned and a regulating member for retaining the waterproof elastic member in a desired shape as well as restricting the movement in the direction opposite to the flange portion of the waterproof elastic member.
この構成によれば、キャップのフランジ部とハウジングの接合部との接合が可能となり、同時に防水用弾性部材が被取り付け部材の孔部に取り付けられた際に、防水用弾性部材のめくれが発生しない。したがって、キャップとハウジングを接合することで、開口からセット内への水等の侵入を抑えた防水コネクタ構造を提供するのと同時に、組み込み時の作業性を低下させることなく、安定してシール性を得る取り付けが可能となる。 According to this configuration, the flange portion of the cap and the joint portion of the housing can be joined, and at the same time, when the waterproof elastic member is attached to the hole portion of the attached member, the waterproof elastic member is not turned up. . Therefore, by joining the cap and the housing, a waterproof connector structure that suppresses the intrusion of water and the like from the opening into the set is provided, and at the same time, the sealing performance is stable without degrading the workability during assembly. Can be attached.
また、本発明の防水型コネクタの取り付け構造は、前記防水用弾性部材が、一方側で前記フランジ部と接するとともに、前記フランジ部とは反対方向の他方側で前記規制部材と接するように装着されていることを特徴とする。 Further, the waterproof connector mounting structure of the present invention is mounted such that the waterproof elastic member is in contact with the flange portion on one side and in contact with the regulating member on the other side opposite to the flange portion. It is characterized by.
この構成によれば、フランジ部と規制部材との距離が少なくなり、小型化が可能である。 According to this configuration, the distance between the flange portion and the regulating member is reduced, and downsizing is possible.
また、本発明の防水型コネクタの取り付け構造は、前記防水用弾性部材が、前記筒部の外周面に当接する筒状に形成されてなり、前記孔部の前記内周面に対して弾接する、周方向に連続した突起部を備えたことを特徴とする。 In the waterproof connector mounting structure according to the present invention, the waterproof elastic member is formed in a cylindrical shape that comes into contact with the outer peripheral surface of the cylindrical portion, and elastically contacts the inner peripheral surface of the hole portion. , Characterized in that it is provided with protrusions that are continuous in the circumferential direction.
この構成によれば、防水用弾性部材が筒状に形成されているので、小型であっても変形しにくい。さらに、防水用弾性部材が周方向に連続する突起部を備えているので、突起部の弾性変形によって孔部との接触が安定する。 According to this configuration, since the waterproof elastic member is formed in a cylindrical shape, it is difficult to deform even if it is small. In addition, since the waterproof elastic member includes a protrusion that is continuous in the circumferential direction, the contact with the hole is stabilized by the elastic deformation of the protrusion.
また、本発明の防水型コネクタの取り付け構造は、前記規制部材は内周側に内側に向かって凸となる突出部を有し、前記筒部の外周には、前記突出部を係止する凹部が設けられていることを特徴とする。 In the waterproof connector mounting structure of the present invention, the restricting member has a protruding portion that protrudes inward on the inner peripheral side, and a concave portion that locks the protruding portion on the outer periphery of the cylindrical portion. Is provided.
この構成によれば、突出部が凹部に圧入されるので、規制部材の抜け止めがなされるとともに、防水用弾性部材を過剰に押しつぶさずに保持することが可能である。 According to this configuration, since the protruding portion is press-fitted into the concave portion, it is possible to prevent the restricting member from coming off and to hold the waterproof elastic member without being excessively crushed.
本発明によれば、キャップのフランジ部とハウジングの接合部との接合が可能となり、同時に防水用弾性部材が被取り付け部材の孔部に取り付けられた際に、防水用弾性部材のめくれが発生しない。したがって、組み込み時の作業性を低下させることなく、安定してシール性を得る取り付けが可能となる。したがって、レーザ溶着などの接合によって防水コネクタ構造を提供するのと同時に、組み込み時の作業性を低下させることなく、安定してシール性を得ることが可能となる防水型コネクタの取り付け構造を提供することができる。 According to the present invention, it is possible to join the flange portion of the cap and the joint portion of the housing, and at the same time, when the waterproof elastic member is attached to the hole portion of the attached member, the waterproof elastic member is not turned up. . Therefore, it is possible to perform mounting that stably obtains a sealing performance without deteriorating workability at the time of assembly. Therefore, it is possible to provide a waterproof connector mounting structure capable of stably obtaining a sealing property without deteriorating workability at the time of assembling while providing a waterproof connector structure by joining such as laser welding. be able to.
［第１実施形態］
以下、本発明の実施の形態について図面を用いて詳細に説明する。なお、分かりやすいように、図面は寸法を適宜変更している。
[First Embodiment]
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. For easy understanding, the dimensions of the drawings are appropriately changed.
図１は、本発明の実施の形態に係る防水型コネクタ１を示す斜視図である。図２は、防水型コネクタ１の分解斜視図である。図３は、防水型コネクタ１の側面図である。図４は、防水型コネクタ１をキャップ２０側から見た正面図である。 FIG. 1 is a perspective view showing a waterproof connector 1 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the waterproof connector 1. FIG. 3 is a side view of the waterproof connector 1. FIG. 4 is a front view of the waterproof connector 1 as viewed from the cap 20 side.
本実施形態の取り付け構造は、図１〜図４に示す防水型コネクタ１に適用されるものである。防水型コネクタ１は、ハウジング１０と、キャップ２０と、端子１３と、を備えている。以下の説明では、図１に示すＸ１−Ｘ２方向を側方、Ｙ１側を前方、Ｙ２側を後方、Ｚ１側を上方、Ｚ２側を下方とする。 The attachment structure of this embodiment is applied to the waterproof connector 1 shown in FIGS. The waterproof connector 1 includes a housing 10, a cap 20, and terminals 13. In the following description, the X1-X2 direction shown in FIG. 1 is the side, the Y1 side is the front, the Y2 side is the rear, the Z1 side is the upper side, and the Z2 side is the lower side.
ハウジング１０は、合成樹脂を成形したものであり、図２に示すように、開口１０ｂと、開口１０ｂを囲む環状の接合部１０ｃとを有している。ハウジング１０は、下側ハウジング１１と上側ハウジング１２により構成される。ハウジング１０を構成する下側ハウジング１１は、上側に設けた開口を囲むように側壁を有し、側壁の上端面が上側ハウジング１２と溶着される溶着部１１ａになっている。また、下側ハウジング１１は、下方及び側方に突出する下側ハウジング接合部１１ｃを備えている。上側ハウジング１２は、上方及び側方に突出する上側ハウジング接合部１２ｃを備えている。 The housing 10 is formed by molding a synthetic resin, and has an opening 10b and an annular joint 10c surrounding the opening 10b as shown in FIG. The housing 10 includes a lower housing 11 and an upper housing 12. The lower housing 11 constituting the housing 10 has a side wall so as to surround an opening provided on the upper side, and an upper end surface of the side wall is a welding portion 11 a welded to the upper housing 12. The lower housing 11 includes a lower housing joint portion 11c that protrudes downward and sideward. The upper housing 12 includes an upper housing joint 12c that protrudes upward and laterally.
上側ハウジング１２は、レーザ光を透過可能な光透過材料により形成されている。例えば、乳白色のナイロン樹脂を使用することができる。ナイロン樹脂は、適度な加熱で成形することができる。また、顔料を含有していない場合には乳白色で透光性を有している。下側ハウジング１１は、上側ハウジング１２よりも光吸収性を有する光吸収材料により形成されている。例えば、黒色に着色されたナイロン樹脂を使用することができる。ナイロン樹脂は、適度な加熱で成形することができる。また、着色用の顔料を多く含有している場合は光吸収性を有している。 The upper housing 12 is made of a light transmitting material that can transmit laser light. For example, milky white nylon resin can be used. Nylon resin can be molded by moderate heating. Moreover, when it does not contain a pigment, it is milky white and has translucency. The lower housing 11 is formed of a light absorbing material that has a light absorption property than the upper housing 12. For example, a black nylon resin can be used. Nylon resin can be molded by moderate heating. Moreover, when it contains many pigments for coloring, it has a light absorptivity.
ハウジング１０は、下側ハウジング１１の上部を覆うように上側ハウジング１２が下側ハウジング１１の溶着部１１ａとレーザ溶着によって接合されて一体化され、ハウジング１０の内部に収容空間が形成される。このとき、下側ハウジング接合部１１ｃと上側ハウジング接合部１２ｃとによって、開口１０ｂを囲む環状の接合部１０ｃが形成される。 The housing 10 is integrated by joining an upper housing 12 and a welding portion 11 a of the lower housing 11 by laser welding so as to cover an upper portion of the lower housing 11, and an accommodation space is formed inside the housing 10. At this time, an annular joint 10c surrounding the opening 10b is formed by the lower housing joint 11c and the upper housing joint 12c.
一方、下側ハウジング１１には、端子１３が取り付けられている。端子１３は導電性の金属で形成され、ハウジング１０の内外を貫通するように取り付けられている。端子１３には、例えば、燐青銅を使用することができる。端子１３は、ハウジング１０の収容空間内に露出するように配置され、収容空間内でイヤホン等のプラグの接続端子に電気接続可能に設けられている。なお、図２では、端子１３の貫通部１３ａを示しやすくするために、端子１３の収容空間内に突出する延設部を省略している。端子１３の延設部は、図示しないプラグの接続端子に対応して配置される。端子１３の貫通部１３ａは、下側ハウジング１１の合成樹脂と密着しており、水密にシールされている。例えば、インサート成形によって、端子１３を下側ハウジング１１に一体化させることができる。 On the other hand, a terminal 13 is attached to the lower housing 11. The terminal 13 is made of a conductive metal and is attached so as to penetrate the inside and outside of the housing 10. For example, phosphor bronze can be used for the terminal 13. The terminal 13 is disposed so as to be exposed in the housing space of the housing 10 and is provided in the housing space so as to be electrically connected to a connection terminal of a plug such as an earphone. In FIG. 2, in order to easily show the through portion 13 a of the terminal 13, an extending portion that protrudes into the accommodation space of the terminal 13 is omitted. The extending portion of the terminal 13 is arranged corresponding to a connection terminal of a plug (not shown). The through portion 13a of the terminal 13 is in close contact with the synthetic resin of the lower housing 11, and is sealed watertight. For example, the terminal 13 can be integrated with the lower housing 11 by insert molding.
キャップ２０は、合成樹脂を成形したものである。例えば、黒色に着色されたナイロン樹脂を使用することができる。キャップ２０には、下側ハウジング１１と同じ材料を使用することができる。キャップ２０には、ハウジング１０の開口１０ｂに繋がる貫通孔２０ａを有する筒部２０ｂが形成されている。また、キャップ２０は、筒部２０ｂの外周側から外方に突出するフランジ部２０ｃを有している。筒部２０ｂの外周は、上下に面取りが設けられ、側方の形状は、先端側の外周面２０ｅが略円形で、フランジ部２０ｃ側の外周面２０ｆがハウジング１０と同程度の幅の略楕円形状としている。筒部２０ｂの外周には、凹部を有する係止部２０ｄが設けられている。本実施形態では、筒部２０ｂの略円形の外周面２０ｅの部分に係止部２０ｄが形成されている。なお、その部分の肉厚が薄いため、係止部２０ｄの凹部は貫通孔２０ａに連通した開口になっており、開口の周りが補強のため僅かに肉厚に盛り上がっている。係止部２０ｄの凹部は、貫通孔２０ａに連通している必要はなく、有底であってもよい。 The cap 20 is formed by molding a synthetic resin. For example, a black nylon resin can be used. The same material as that of the lower housing 11 can be used for the cap 20. The cap 20 is formed with a cylindrical portion 20b having a through hole 20a connected to the opening 10b of the housing 10. The cap 20 has a flange portion 20c that protrudes outward from the outer peripheral side of the cylindrical portion 20b. The outer periphery of the cylindrical portion 20b is vertically chamfered, and the lateral shape of the outer peripheral surface 20e on the distal end side is substantially circular, and the outer peripheral surface 20f on the flange portion 20c side is substantially elliptical with a width comparable to the housing 10. It has a shape. A locking portion 20d having a concave portion is provided on the outer periphery of the cylindrical portion 20b. In the present embodiment, a locking portion 20d is formed on the substantially circular outer peripheral surface 20e of the cylindrical portion 20b. In addition, since the thickness of the part is thin, the recessed part of the latching | locking part 20d becomes the opening connected to the through-hole 20a, and the circumference | surroundings of the opening are rising slightly thickly for reinforcement. The concave portion of the locking portion 20d does not need to communicate with the through hole 20a and may be bottomed.
キャップ２０は、フランジ部２０ｃがハウジング１０の接合部１０ｃに超音波溶着によって接合されて、ハウジング１０と一体化される。以上のように、端子１３が下側ハウジング１１にインサート成形によって一体化され、上側ハウジング１２が下側ハウジング１１の溶着部１１ａとレーザ溶着によって接合され、キャップ２０がハウジング１０の接合部１０ｃに超音波溶着によって接合される。したがって、キャップ２０の貫通孔２０ａ側からハウジング１０の内部の収容空間に水等が侵入しても、下側ハウジング１１及び上側ハウジング１２の部分から外部に漏れ出ることはない。このようにして、レーザ溶着と超音波溶着とを用いた接合によって防水コネクタ構造を得ることができる。 The cap 20 is integrated with the housing 10 by joining the flange portion 20 c to the joint portion 10 c of the housing 10 by ultrasonic welding. As described above, the terminal 13 is integrated with the lower housing 11 by insert molding, the upper housing 12 is joined to the welded portion 11a of the lower housing 11 by laser welding, and the cap 20 is more than the joined portion 10c of the housing 10. Joined by sonic welding. Therefore, even if water or the like enters the housing space inside the housing 10 from the through hole 20a side of the cap 20, it does not leak out from the lower housing 11 and the upper housing 12 portions. In this way, a waterproof connector structure can be obtained by joining using laser welding and ultrasonic welding.
本実施形態の取り付け構造は、上記の防水型コネクタ１と、筒部２０ｂの外周側に嵌着される防水用弾性部材４０と、防水用弾性部材４０を所望の形状に保持する規制部材５０とを備え、被取り付け部材６０に設けられた筒状の孔部６１に取り付けるものである。図５は、本発明の実施の形態に係る防水用弾性部材４０を示す外観図であり、図５（ａ）は平面図であり、図５（ｂ）は正面図である。図６は、本発明の実施の形態に係る規制部材５０を示す外観図であり、図６（ａ）は平面図であり、図６（ｂ）は正面図である。図７は、防水用弾性部材４０と規制部材５０とが嵌着された防水型コネクタ１を示す斜視図である。図８は、防水用弾性部材４０と規制部材５０とが嵌着された防水型コネクタ１を示す側面図である。図９は、本発明の実施の形態に係る防水型コネクタ１の取り付け構造を示す模式断面図である。なお、図９は、被取り付け部材６０の孔部６１に取り付けられた状態を、図８のＩＸ−ＩＸ線で切断した断面位置で示したものである。 The mounting structure of the present embodiment includes the waterproof connector 1, the waterproof elastic member 40 fitted on the outer peripheral side of the cylindrical portion 20b, and the regulating member 50 that holds the waterproof elastic member 40 in a desired shape. It attaches to the cylindrical hole 61 provided in the to-be-attached member 60. FIG. 5 is an external view showing the waterproof elastic member 40 according to the embodiment of the present invention, FIG. 5 (a) is a plan view, and FIG. 5 (b) is a front view. 6A and 6B are external views showing the regulating member 50 according to the embodiment of the present invention. FIG. 6A is a plan view and FIG. 6B is a front view. FIG. 7 is a perspective view showing the waterproof connector 1 in which the waterproof elastic member 40 and the regulating member 50 are fitted. FIG. 8 is a side view showing the waterproof connector 1 in which the waterproof elastic member 40 and the regulating member 50 are fitted. FIG. 9 is a schematic cross-sectional view showing the mounting structure of the waterproof connector 1 according to the embodiment of the present invention. FIG. 9 shows the state of being attached to the hole 61 of the member 60 to be attached, as a cross-sectional position cut along the line IX-IX in FIG.
防水用弾性部材４０は、シリコンゴム等の弾性体を成形したものである。本実施形態の防水型コネクタ１がイヤホン用のジャックコネクタの場合、筒部２０ｂの貫通孔２０ａの径は３．５ｍｍ程度であり、外周側に嵌着される防水用弾性部材４０の肉厚は、被取り付け部材６０の小型化を制約するので、できるだけ薄いことが要望される。このため、防水用弾性部材４０の肉厚は、防水性を確保でき、かつ成形可能な限界の薄肉形状に成形されている。本実施形態の防水用弾性部材４０は、筒部２０ｂの外周面２０ｆに当接する筒状に形成された薄肉の筒状部４０ａと、図５のように筒状部４０ａから外方に突出し、周方向に連続した突起部４０ｂとを備えている。なお、防水用弾性部材４０は、図５に示すように、突起部４０ｂを２本備えている。 The waterproof elastic member 40 is formed by molding an elastic body such as silicon rubber. When the waterproof connector 1 of the present embodiment is an earphone jack connector, the diameter of the through hole 20a of the cylindrical portion 20b is about 3.5 mm, and the thickness of the waterproof elastic member 40 fitted on the outer peripheral side is as follows. In order to limit the downsizing of the mounted member 60, it is desired to be as thin as possible. For this reason, the thickness of the waterproof elastic member 40 is formed into a thin-wall shape that can ensure waterproofness and can be molded. The waterproof elastic member 40 of the present embodiment protrudes outward from the cylindrical portion 40a as shown in FIG. 5 and a thin cylindrical portion 40a formed in a cylindrical shape that contacts the outer peripheral surface 20f of the cylindrical portion 20b. And a protrusion 40b continuous in the circumferential direction. The waterproof elastic member 40 includes two protrusions 40b as shown in FIG.
規制部材５０は、合成樹脂を環状に成形したものである。規制部材５０の外周形状は、防水用弾性部材４０の筒状部４０ａの外形とほぼ同等であり、突起部４０ｂの外形より小さい。規制部材５０の内周側は、キャップ２０の筒部２０ｂの略円形の外周面２０ｅの形状に対応している。さらに、規制部材５０の内周側には、図６（ｂ）のように内側に向かって凸となる突出部５０ｃを有している。 The restricting member 50 is formed by annularly molding a synthetic resin. The outer peripheral shape of the regulating member 50 is substantially the same as the outer shape of the cylindrical portion 40a of the waterproof elastic member 40, and is smaller than the outer shape of the protruding portion 40b. The inner peripheral side of the restricting member 50 corresponds to the shape of the substantially circular outer peripheral surface 20 e of the cylindrical portion 20 b of the cap 20. Further, on the inner peripheral side of the regulating member 50, there is a protruding portion 50c that protrudes inward as shown in FIG.
図７及び図８に示すように、防水型コネクタ１の筒部２０ｂに防水用弾性部材４０と規制部材５０とが嵌着される。防水用弾性部材４０は、後方側でフランジ部２０ｃと接するとともに、フランジ部２０ｃとは反対方向の前方側で規制部材５０と接するように装着されている。この構成によれば、フランジ部２０ｃと規制部材５０との距離が少なくなり、小型化が可能である。規制部材５０をキャップ２０の筒部２０ｂに嵌着したとき、規制部材５０の突出部５０ｃは筒部２０ｂの係止部２０ｄの凹部に係止される。この構成によれば、突出部５０ｃが係止部２０ｄに圧入されるので、規制部材５０の抜け止めがなされる。さらに、規制部材５０は、防水用弾性部材４０を過剰に押しつぶさずに保持することができる。 As shown in FIGS. 7 and 8, the waterproof elastic member 40 and the regulating member 50 are fitted into the cylindrical portion 20 b of the waterproof connector 1. The waterproof elastic member 40 is mounted so as to be in contact with the flange portion 20c on the rear side and in contact with the regulating member 50 on the front side in the opposite direction to the flange portion 20c. According to this configuration, the distance between the flange portion 20c and the regulating member 50 is reduced, and downsizing is possible. When the regulating member 50 is fitted to the cylindrical portion 20b of the cap 20, the protruding portion 50c of the regulating member 50 is locked in the recess of the locking portion 20d of the cylindrical portion 20b. According to this configuration, since the protruding portion 50c is press-fitted into the locking portion 20d, the regulating member 50 is prevented from coming off. Furthermore, the regulating member 50 can hold the waterproof elastic member 40 without excessive crushing.
このように、規制部材５０を防水用弾性部材４０が嵌着されてから取り付けるので、フランジ部２０ｃを超音波溶着でハウジング１０に接合する場合でも小型化することができる。超音波溶着は、防水用弾性部材４０及び規制部材５０が嵌着される前に行われる。仮に、超音波溶着前に規制部材５０を嵌着したり、あらかじめ筒部２０ｂに規制部材５０と同形状の規制部を形成した場合には、超音波溶着用のホーンはこれを避ける必要があるため、フランジ部２０ｃに当接させる領域はその外側に制限され、フランジ部２０ｃの小型化が困難となる。本実施形態のように防水用弾性部材４０及び規制部材５０が嵌着される前の超音波溶着であれば、溶着領域を制限することなく、キャップ２０のフランジ部２０ｃとハウジング１０の接合部１０ｃとの接合が可能である。 As described above, since the restricting member 50 is attached after the waterproof elastic member 40 is fitted, the size can be reduced even when the flange portion 20c is joined to the housing 10 by ultrasonic welding. The ultrasonic welding is performed before the waterproof elastic member 40 and the regulating member 50 are fitted. If the regulating member 50 is fitted before ultrasonic welding, or if a regulating portion having the same shape as the regulating member 50 is formed in the cylindrical portion 20b in advance, the ultrasonic welding horn needs to avoid this. For this reason, the area | region made to contact | abut to the flange part 20c is restrict | limited to the outer side, and size reduction of the flange part 20c becomes difficult. If ultrasonic welding is performed before the waterproof elastic member 40 and the regulating member 50 are fitted as in the present embodiment, the flange 20c of the cap 20 and the joint 10c of the housing 10 are not limited without limiting the welding area. Can be joined.
一方、被取り付け部材６０は、例えば、携帯型の電子機器の筐体である。筐体内部に配置された回路基板に防水型コネクタ１の端子１３が半田付けによって接続され、貫通孔２０ａが筐体から露出するように取り付けられる。被取り付け部材６０には、筒部２０ｂを挿入可能な筒状の孔部６１が設けられており、図９に示すように、孔部６１の内周面６１ａに対して防水用弾性部材４０の突起部４０ｂが弾接する。こうして、防水用弾性部材４０が孔部６１の内周面６１ａとの隙間を封止する。 On the other hand, the attached member 60 is, for example, a casing of a portable electronic device. The terminal 13 of the waterproof connector 1 is connected to a circuit board disposed inside the casing by soldering, and is attached so that the through hole 20a is exposed from the casing. The attached member 60 is provided with a cylindrical hole 61 into which the cylindrical portion 20b can be inserted. As shown in FIG. 9, the waterproof elastic member 40 is against the inner peripheral surface 61a of the hole 61. The protrusion 40b comes into elastic contact. Thus, the waterproof elastic member 40 seals the gap between the hole 61 and the inner peripheral surface 61a.
このとき、規制部材５０は、突起部４０ｂの外形より小さく、孔部６１の内周面６１ａに当接しないので、突起部４０ｂが内周面６１ａに弾接することを妨げることがない。 At this time, the regulating member 50 is smaller than the outer shape of the protruding portion 40b and does not contact the inner peripheral surface 61a of the hole 61, so that the protruding portion 40b is not prevented from elastically contacting the inner peripheral surface 61a.
また、規制部材５０は、筒状部４０ａの側面の移動を規制しているので、被取り付け部材６０の孔部６１に防水用弾性部材４０が挿入されていく途中で防水用弾性部材４０のめくれが発生しないように保護している。したがって、組み込み時の作業性を低下させることなく、安定してシール性を得る取り付けが可能となる。 Further, since the regulating member 50 regulates the movement of the side surface of the tubular portion 40 a, the waterproof elastic member 40 is turned up while the waterproof elastic member 40 is being inserted into the hole 61 of the attached member 60. It is protected so as not to occur. Therefore, it is possible to perform mounting that stably obtains a sealing performance without deteriorating workability at the time of assembly.
なお、上述したように、キャップ２０のフランジ部２０ｃとハウジング１０の接合部１０ｃとの接合は超音波溶着を用いている。図９に示すように、前方から見て、フランジ部２０ｃと接合部１０ｃとの接合位置と防水用弾性部材４０及び規制部材５０の位置とは重なっている。本実施形態の取り付け構造では、超音波溶着の後に防水用弾性部材４０及び規制部材５０を挿入するので、フランジ部２０ｃの寸法が最小化でき、防水型コネクタ１を小型化できる。 Note that, as described above, ultrasonic welding is used to join the flange portion 20c of the cap 20 and the joint portion 10c of the housing 10. As shown in FIG. 9, when viewed from the front, the joining position of the flange portion 20 c and the joining portion 10 c overlaps with the positions of the waterproof elastic member 40 and the regulating member 50. In the mounting structure of the present embodiment, the waterproof elastic member 40 and the regulating member 50 are inserted after ultrasonic welding. Therefore, the size of the flange portion 20c can be minimized, and the waterproof connector 1 can be miniaturized.
以下、本実施形態としたことによる効果について説明する。 Hereinafter, the effect by having set it as this embodiment is demonstrated.
本実施形態の取り付け構造は、被取り付け部材６０に取り付ける防水型コネクタ１の取り付け構造であって、防水型コネクタ１は、開口１０ｂを有し内部に収容空間が形成されたハウジング１０と、ハウジング１０の開口１０ｂに繋がる貫通孔２０ａを有する筒部２０ｂが形成されたキャップ２０と、ハウジング１０の内外を貫通する端子１３と、を備え、ハウジング１０は開口１０ｂを囲む環状の接合部１０ｃを有し、キャップ２０は、筒部２０ｂの外周側から外方に突出するフランジ部２０ｃを有し、フランジ部２０ｃが接合部１０ｃに溶着されてハウジング１０と一体化され、被取り付け部材６０には、筒部２０ｂを挿入可能な筒状の孔部６１が設けられており、筒部２０ｂが孔部６１に挿入される際に筒部２０ｂの外周側に嵌着され、孔部６１の内周面６１ａとの隙間を封止する防水用弾性部材４０と、孔部６１の内周面６１ａに接触しない寸法に形成され防水用弾性部材４０のフランジ部２０ｃと反対方向への移動を規制するとともに防水用弾性部材４０を所望の形状に保持する規制部材５０と、を備えることを特徴とする。 The attachment structure of the present embodiment is an attachment structure of the waterproof connector 1 attached to the member 60 to be attached. The waterproof connector 1 includes a housing 10 having an opening 10b and a housing space formed therein, and a housing 10. A cap 20 having a cylindrical portion 20b having a through hole 20a connected to the opening 10b, and a terminal 13 penetrating the inside and outside of the housing 10, and the housing 10 has an annular joint 10c surrounding the opening 10b. The cap 20 has a flange portion 20c that protrudes outward from the outer peripheral side of the tube portion 20b. The flange portion 20c is welded to the joint portion 10c and integrated with the housing 10. A cylindrical hole 61 into which the portion 20 b can be inserted is provided, and when the cylindrical portion 20 b is inserted into the hole 61, it is fitted to the outer peripheral side of the cylindrical portion 20 b. The waterproof elastic member 40 that seals the gap between the hole 61 and the inner peripheral surface 61a, and the dimension that does not contact the inner peripheral surface 61a of the hole 61 is opposite to the flange portion 20c of the waterproof elastic member 40. And a restricting member 50 that holds the waterproof elastic member 40 in a desired shape.
この構成によれば、キャップ２０のフランジ部２０ｃとハウジング１０の接合部１０ｃとの接合が可能となり、同時に防水用弾性部材４０が被取り付け部材６０の孔部６１に取り付けられた際に、防水用弾性部材４０のめくれが発生しない。したがって、組み込み時の作業性を低下させることなく、安定してシール性を得る取り付けが可能となる。 According to this configuration, the flange portion 20c of the cap 20 and the joint portion 10c of the housing 10 can be joined. At the same time, when the waterproof elastic member 40 is attached to the hole 61 of the attached member 60, the waterproof portion The elastic member 40 is not turned up. Therefore, it is possible to perform mounting that stably obtains a sealing performance without deteriorating workability at the time of assembly.
また、本実施形態の防水型コネクタ１の取り付け構造は、防水用弾性部材４０が、一方側でフランジ部２０ｃと接するとともに、フランジ部２０ｃとは反対方向の他方側で規制部材５０と接するように装着されていることを特徴とする。 In addition, the waterproof connector 1 according to the present embodiment has a waterproof structure in which the waterproof elastic member 40 is in contact with the flange portion 20c on one side and is in contact with the regulating member 50 on the other side opposite to the flange portion 20c. It is mounted.
この構成によれば、フランジ部２０ｃと規制部材５０との距離が少なくなり、小型化が可能である。 According to this configuration, the distance between the flange portion 20c and the regulating member 50 is reduced, and downsizing is possible.
また、本実施形態の防水型コネクタ１の取り付け構造は、防水用弾性部材４０が、筒部２０ｂの外周面２０ｆに当接する筒状に形成されてなり、孔部６１の内周面６１ａに対して弾接する、周方向に連続した突起部４０ｂを備えたことを特徴とする。 Further, the waterproof connector 1 according to the present embodiment has a structure in which the waterproof elastic member 40 is formed in a cylindrical shape that comes into contact with the outer peripheral surface 20f of the cylindrical portion 20b, and is attached to the inner peripheral surface 61a of the hole portion 61. And a projecting portion 40b that is elastically contacted in the circumferential direction.
この構成によれば、防水用弾性部材４０が筒状に形成されているので、小型であっても変形しにくい。さらに、防水用弾性部材４０が周方向に連続する突起部４０ｂを備えているので、突起部４０ｂの弾性変形によって孔部６１との接触が安定する。 According to this configuration, since the waterproof elastic member 40 is formed in a cylindrical shape, it is difficult to deform even if it is small. Furthermore, since the waterproof elastic member 40 includes the protruding portion 40b continuous in the circumferential direction, the contact with the hole 61 is stabilized by the elastic deformation of the protruding portion 40b.
また、本実施形態の防水型コネクタ１の取り付け構造は、規制部材５０は内周側に内側に向かって凸となる突出部５０ｃを有し、筒部２０ｂの外周には、突出部５０ｃを係止する係止部２０ｄが設けられていることを特徴とする。 Further, in the waterproof connector 1 mounting structure of the present embodiment, the regulating member 50 has a protruding portion 50c that protrudes inward on the inner peripheral side, and the protruding portion 50c is engaged with the outer periphery of the cylindrical portion 20b. An engaging portion 20d for stopping is provided.
この構成によれば、突出部５０ｃが係止部２０ｄに圧入されるので、規制部材５０の抜け止めがなされるとともに、防水用弾性部材４０を過剰に押しつぶさずに保持することが可能である。 According to this configuration, since the protruding portion 50c is press-fitted into the locking portion 20d, the regulating member 50 is prevented from coming off, and the waterproof elastic member 40 can be held without being excessively crushed.
以上のように、本発明の実施形態の防水型コネクタ１の取り付け構造を具体的に説明したが、本発明は上記の実施形態に限定されるものではなく、要旨を逸脱しない範囲で種々変更して実施することが可能である。例えば次のように変形して実施することができ、これらも本発明の技術的範囲に属する。 As described above, the mounting structure of the waterproof connector 1 according to the embodiment of the present invention has been specifically described. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Can be implemented. For example, the present invention can be modified as follows, and these also belong to the technical scope of the present invention.
（１）本実施形態において、上側ハウジング１２を光透過材料とし、下側ハウジング１１とレーザ溶着によって接合されて一体化されるとしたが、レーザ溶着以外の接合構造に変更してもよい。また、上側ハウジング１２を下側ハウジング１１と同じ材料にして、キャップ２０を光透過材料とし、フランジ部２０ｃをレーザ溶着によって接合するように変更してもよい。フランジ部２０ｃをレーザ溶着によって接合する場合であっても、本発明の取り付け構造を用いることによって、フランジ部２０ｃの寸法が最小化でき、防水型コネクタ１を小型化できる。 (1) In the present embodiment, the upper housing 12 is made of a light transmitting material and is joined and integrated with the lower housing 11 by laser welding, but may be changed to a joining structure other than laser welding. Further, the upper housing 12 may be made of the same material as that of the lower housing 11, the cap 20 may be made of a light transmission material, and the flange portion 20c may be changed to be joined by laser welding. Even when the flange portion 20c is joined by laser welding, the dimensions of the flange portion 20c can be minimized and the waterproof connector 1 can be miniaturized by using the mounting structure of the present invention.
（２）本実施形態において、規制部材５０は内周側に内側に向かって凸となる突出部５０ｃを有し、筒部２０ｂの外周には、突出部５０ｃを係止する係止部２０ｄが設けられている構成としたが、筒部２０ｂの略円形の外周面２０ｅに突起を設け、規制部材５０は内周側に凹部を設けて係合させてもよい。 (2) In the present embodiment, the regulating member 50 has a protruding portion 50c that protrudes inward on the inner peripheral side, and a locking portion 20d that locks the protruding portion 50c is provided on the outer periphery of the cylindrical portion 20b. However, the protrusion may be provided on the substantially circular outer peripheral surface 20e of the cylindrical portion 20b, and the regulating member 50 may be engaged by providing a concave portion on the inner peripheral side.
（３）本実施形態において、防水用弾性部材４０が周方向に連続する突起部４０ｂを２本備えている形状としたが、突起部４０ｂは１本でもよい。 (3) In the present embodiment, the waterproof elastic member 40 has two protrusions 40b that are continuous in the circumferential direction, but the number of protrusions 40b may be one.
１ 防水型コネクタ
１０ ハウジング
１０ｂ 開口
１０ｃ 接合部
１１ 下側ハウジング
１１ａ 溶着部
１１ｃ 下側ハウジング接合部
１２ 上側ハウジング
１２ｃ 上側ハウジング接合部
１３ 端子
１３ａ 貫通部
２０ キャップ
２０ａ 貫通孔
２０ｂ 筒部
２０ｃ フランジ部
２０ｄ 係止部
２０ｅ 外周面
２０ｆ 外周面
４０ 防水用弾性部材
４０ａ 筒状部
４０ｂ 突起部
５０ 規制部材
５０ｃ 突出部
６０ 被取り付け部材
６１ 孔部
６１ａ 内周面
DESCRIPTION OF SYMBOLS 1 Waterproof type connector 10 Housing 10b Opening 10c Joining part 11 Lower housing 11a Welding part 11c Lower housing joining part 12 Upper housing 12c Upper housing joining part 13 Terminal 13a Through part 20 Cap 20a Through hole 20b Cylindrical part 20c Flange part 20d Engagement Stop part 20e Outer peripheral surface 20f Outer peripheral surface 40 Waterproofing elastic member 40a Cylindrical part 40b Protruding part 50 Restricting member 50c Protruding part 60 Attached member 61 Hole part 61a Inner peripheral surface
Claims (4)
前記防水型コネクタは、開口を有し内部に収容空間が形成されたハウジングと、前記ハウジングの前記開口に繋がる貫通孔を有する筒部が形成されたキャップと、前記ハウジングの内外を貫通する端子と、を備え、
前記ハウジングは前記開口を囲む環状の接合部を有し、
前記キャップは、前記筒部の外周側から外方に突出するフランジ部を有し、前記フランジ部が前記接合部に溶着されて前記ハウジングと一体化され、
前記被取り付け部材には、前記筒部を挿入可能な筒状の孔部が設けられており、
前記筒部が前記孔部に挿入される際に前記筒部の外周側に嵌着され、前記孔部の内周面との隙間を封止する防水用弾性部材と、前記孔部の前記内周面に接触しない寸法で環状に形成され、前記筒部に嵌着されて前記筒部における所定の中間位置で固定されることにより、前記防水用弾性部材の前記フランジ部と反対方向への移動を規制するとともに前記防水用弾性部材を所望の形状に保持する規制部材と、を備えることを特徴とする防水型コネクタの取り付け構造。 A waterproof connector mounting structure to be attached to a member to be mounted,
The waterproof connector includes a housing having an opening and a housing space formed therein, a cap formed with a cylindrical portion having a through hole connected to the opening of the housing, and a terminal penetrating inside and outside the housing. With
The housing has an annular joint surrounding the opening;
The cap has a flange portion projecting outward from the outer peripheral side of the cylindrical portion, and the flange portion is welded to the joint portion and integrated with the housing,
The attached member is provided with a cylindrical hole part into which the cylindrical part can be inserted,
A waterproof elastic member that is fitted to the outer peripheral side of the cylindrical portion when the cylindrical portion is inserted into the hole and seals a gap with the inner peripheral surface of the hole, and the inner portion of the hole It is formed in an annular shape with a dimension that does not contact the peripheral surface, and is fitted to the cylindrical portion and fixed at a predetermined intermediate position in the cylindrical portion, so that the waterproof elastic member moves in a direction opposite to the flange portion. And a regulating member for regulating the waterproof elastic member in a desired shape, and a waterproof connector mounting structure.
前記筒部の外周には、前記突出部を係止する凹部が設けられていることを特徴とする請求項１ないし請求項３のいずれかに記載の防水型コネクタの取り付け構造。 The restricting member has a protruding portion that protrudes inward on the inner peripheral side,
The waterproof connector mounting structure according to any one of claims 1 to 3, wherein a concave portion for locking the protruding portion is provided on an outer periphery of the cylindrical portion.
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