JP2022068976A - Connector structure - Google Patents

Connector structure Download PDF

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Publication number
JP2022068976A
JP2022068976A JP2020177847A JP2020177847A JP2022068976A JP 2022068976 A JP2022068976 A JP 2022068976A JP 2020177847 A JP2020177847 A JP 2020177847A JP 2020177847 A JP2020177847 A JP 2020177847A JP 2022068976 A JP2022068976 A JP 2022068976A
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Prior art keywords
substrate
housing
mounting portion
connector
mounting
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Japanese (ja)
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啓志 重森
Keiji Shigemori
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Priority to JP2020177847A priority Critical patent/JP2022068976A/en
Priority to CN202111192950.5A priority patent/CN114498114A/en
Publication of JP2022068976A publication Critical patent/JP2022068976A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board

Abstract

To provide a connector structure capable of suppressing increase in size of a portion placed on a substrate.SOLUTION: A housing 20 includes: a housing body 21 having a bottom surface 32 facing a substrate 90; and a fitting unit 34 protruding from the bottom surface 32 and locked to the substrate 90. A terminal fitting 60 includes: a mounting unit 62 to be mounted on the housing body 21; and a substrate connecting unit 64 that is positioned rearward of the mounting unit 62 and being connected to a surface of the substrate 90. The fitting unit 34 has a reference surface 39 that contacts the surface of the substrate 90. A step 40 is provided between the reference surface 39 and the bottom surface 32.SELECTED DRAWING: Figure 1

Description

本発明は、コネクタ構造に関する。 The present invention relates to a connector structure.

特許文献１に記載されたコネクタは、ハウジングと、ハウジングに装着される端子金具（板金製導体）と、を有している。端子金具は、ハウジングから後方に延びるリードを有している。リードは、端部に、基板（回路板）の表面に半田付けして接続される接点部を有している。
ハウジングの底面の前部には、基板の表面に接する取付け面が設けられている。ハウジングの底面の前後中間部には、取付けポストが突出して設けられている。取付けポストは、基板の穴に嵌め込まれ、基板に係止される。この種の基板に実装されるコネクタは、特許文献２および特許文献３にも開示されている。 The connector described in Patent Document 1 has a housing and a terminal fitting (sheet metal conductor) attached to the housing. The terminal fitting has a lead extending rearward from the housing. The lead has a contact portion at the end, which is soldered and connected to the surface of the substrate (circuit board).
The front part of the bottom surface of the housing is provided with a mounting surface in contact with the surface of the substrate. A mounting post is provided so as to project from the front and rear middle portions of the bottom surface of the housing. The mounting post is fitted into a hole in the board and locked to the board. Connectors mounted on this type of substrate are also disclosed in Patent Documents 2 and 3.

特開平１－３１１５７８号公報Japanese Unexamined Patent Publication No. 1-311578 特開平５－２５１１２８号公報Japanese Unexamined Patent Publication No. 5-251128 実開平５－８８７５号公報Jitsukaihei No. 5-8875

基板に実装されるコネクタは、各端子金具におけるリードの接点部と基板の表面との間の高さのばらつき、いわゆるコプラナリティを管理する必要がある。特許文献１の場合、リードの接点部が基板の表面に接した状態で、ハウジングの取付け面が基板の表面に接すると考えられる。つまり、ハウジングの取付け面がコプラナリティを測定する際の基準面になり得る。しかし、特許文献１においては、ハウジングの底面に取付けポストが設けられているため、取付けポストよりも前側に取付け面を設けなければならない。その結果、コネクタの前後寸法が大きくなり、基板の表面におけるコネクタの占有面積が増加して、基板の設計レイアウトが制限されるという問題がある。 The connector mounted on the board needs to manage the variation in height between the contact portion of the lead and the surface of the board in each terminal fitting, that is, so-called coplanarity. In the case of Patent Document 1, it is considered that the mounting surface of the housing is in contact with the surface of the substrate in a state where the contact portion of the lead is in contact with the surface of the substrate. That is, the mounting surface of the housing can be the reference surface for measuring coplanarity. However, in Patent Document 1, since the mounting post is provided on the bottom surface of the housing, the mounting surface must be provided on the front side of the mounting post. As a result, there is a problem that the front-rear dimension of the connector becomes large, the occupied area of the connector on the surface of the board increases, and the design layout of the board is limited.

そこで、本開示は、基板に載置される部分の大型化を抑えることが可能なコネクタ構造を提供することを目的とする。 Therefore, it is an object of the present disclosure to provide a connector structure capable of suppressing an increase in size of a portion mounted on a substrate.

本開示のコネクタ構造は、ハウジングと端子金具とを備え、前記ハウジングは、基板に対向する底面を有するハウジング本体と、前記底面から突出し、前記基板に係止される取付部と、を有し、前記端子金具は、前記ハウジング本体に装着される装着部と、前記装着部よりも後方に位置して前記基板の表面に接続される基板接続部と、を有し、前記取付部は、前記基板の表面に接触する基準面を有し、前記基準面と前記底面との間に段差が設けられている。 The connector structure of the present disclosure comprises a housing and terminal fittings, wherein the housing has a housing body having a bottom surface facing the substrate and a mounting portion protruding from the bottom surface and locked to the substrate. The terminal fitting has a mounting portion mounted on the housing body and a board connecting portion located behind the mounting portion and connected to the surface of the substrate, and the mounting portion is the substrate. It has a reference surface in contact with the surface of the above, and a step is provided between the reference surface and the bottom surface.

本開示によれば、基板に載置される部分の大型化を抑えることが可能なコネクタ構造を提供することができる。 According to the present disclosure, it is possible to provide a connector structure capable of suppressing an increase in size of a portion mounted on a substrate.

図１は、本実施形態のコネクタ構造の側面図である。FIG. 1 is a side view of the connector structure of the present embodiment. 図２は、コネクタ構造の正面図である。FIG. 2 is a front view of the connector structure. 図３は、コネクタ構造の背面図である。FIG. 3 is a rear view of the connector structure. 図４は、ハウジングの底面図である。FIG. 4 is a bottom view of the housing. 図５は、弾性ロックが基板の孔内に挿入されて係止された状態を示す拡大断面図である。FIG. 5 is an enlarged cross-sectional view showing a state in which the elastic lock is inserted into the hole of the substrate and locked.

［本開示の実施形態の説明］
最初に本開示の実施態様を列記して説明する。
本開示のコネクタ構造は、
（１）ハウジングと端子金具とを備え、前記ハウジングは、基板に対向する底面を有するハウジング本体と、前記底面から突出し、前記基板に係止される取付部と、を有し、前記端子金具は、前記ハウジング本体に装着される装着部と、前記装着部よりも後方に位置して前記基板の表面に接続される基板接続部と、を有し、前記取付部は、前記基板の表面に接触する基準面を有し、前記基準面と前記底面との間に段差が設けられている。 [Explanation of Embodiments of the present disclosure]
First, embodiments of the present disclosure will be listed and described.
The connector structure of the present disclosure is
(1) The housing includes a housing and a terminal fitting, and the housing has a housing main body having a bottom surface facing the substrate and a mounting portion protruding from the bottom surface and locked to the substrate. It has a mounting portion mounted on the housing body and a substrate connecting portion located rearward of the mounting portion and connected to the surface of the substrate, and the mounting portion contacts the surface of the substrate. It has a reference surface to be used, and a step is provided between the reference surface and the bottom surface.

上述した構成によれば、端子金具の基板接続部が基板の表面に接触した状態で、取付部の基準面も基板の表面に接触するため、この基準面を、コプラナリティを測定する際の基準にすることができる。このように、基準面が取付部と一体化していれば、ハウジングの構造を簡略化することができ、コネクタの前後方向の大型化を抑えることができる。その結果、基板のパターン設計レイアウトの自由度を高めることができる。 According to the configuration described above, the reference surface of the mounting portion also contacts the surface of the board while the board connection portion of the terminal fitting is in contact with the surface of the board. Therefore, this reference surface is used as a reference for measuring coplanarity. can do. As described above, if the reference surface is integrated with the mounting portion, the structure of the housing can be simplified and the enlargement of the connector in the front-rear direction can be suppressed. As a result, the degree of freedom in the pattern design layout of the substrate can be increased.

なお、例えば、ハウジングに金属製レグなどの固定部材が装着され、ハウジングが固定部材を介して基板に取り付けられる場合には、ハウジングの幅方向の両端に固定部材の装着構造を設けなければならず、コネクタが幅方向に大型化するという懸念があった。しかるに上述した構成によれば、取付部が固定部材の代わりになり、固定部材を省略することができるため、コネクタの幅方向の大型化を回避することもできる。 For example, when a fixing member such as a metal leg is mounted on the housing and the housing is mounted on the substrate via the fixing member, a fixing member mounting structure must be provided at both ends in the width direction of the housing. , There was a concern that the connector would become larger in the width direction. However, according to the above-mentioned configuration, since the mounting portion replaces the fixing member and the fixing member can be omitted, it is possible to avoid an increase in the size of the connector in the width direction.

（２）前記ハウジング本体は、前記取付部よりも前方の領域に、肉抜き部を有しているのが好ましい。この構成によれば、肉抜き部の形成分だけコネクタの前部側（取付部よりも前方の領域側）の重量を減らし、コネクタの重心を後部側に位置させることができる。その結果、コネクタが端子の基板接続部と取付部の基準面とを介して基板に支持される状態をバランス良く維持することができる。 (2) The housing main body preferably has a lightening portion in a region in front of the mounting portion. According to this configuration, the weight of the front side (region side in front of the mounting portion) of the connector can be reduced by the amount of the lightening portion formed, and the center of gravity of the connector can be positioned on the rear side. As a result, it is possible to maintain a well-balanced state in which the connector is supported by the board via the board connection portion of the terminal and the reference surface of the mounting portion.

（３）前記肉抜き部は、前記底面に開口する凹状をなし、前記底面に幅方向に複数並んで配置されると良い。この構成によれば、例えば、端子金具の基板接続部が基板にリフロー半田付けされる場合に、ハウジング本体がリフローの熱によって幅方向に反るように変形するのを、各肉抜き部によって、抑えることができる。その結果、取付部の基準面が基板の表面に接触する状態を良好に実現することができる。 (3) It is preferable that the lightening portion has a concave shape that opens to the bottom surface, and a plurality of the lightening portions are arranged side by side in the width direction on the bottom surface. According to this configuration, for example, when the board connection portion of the terminal fitting is reflow soldered to the substrate, the housing body is deformed so as to warp in the width direction due to the heat of the reflow, by each lightening portion. It can be suppressed. As a result, it is possible to satisfactorily realize a state in which the reference surface of the mounting portion is in contact with the surface of the substrate.

（４）前記取付部は、前記基板の孔内に配置される撓み変形可能な弾性ロックを有し、前記弾性ロックは、前記基板の孔の内面に接するガタ詰めロック部を有していると良い。この構成によれば、取付部と基板との間にガタが発生するのを、弾性ロックのガタ詰めロック部によって、抑えることができる。その結果、取付部の基準面が基板の表面に接触する状態を良好に実現することができる。 (4) The mounting portion has a flexible and deformable elastic lock arranged in the hole of the substrate, and the elastic lock has a backlash-filled lock portion in contact with the inner surface of the hole of the substrate. good. According to this configuration, the occurrence of backlash between the mounting portion and the substrate can be suppressed by the backlash-filled lock portion of the elastic lock. As a result, it is possible to satisfactorily realize a state in which the reference surface of the mounting portion is in contact with the surface of the substrate.

［本開示の実施形態の詳細］
本開示のコネクタ構造の具体例を、以下に図面を参照しつつ説明する。なお、本発明はこの例示に限定されるものではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 [Details of Embodiments of the present disclosure]
Specific examples of the connector structure of the present disclosure will be described below with reference to the drawings. It should be noted that the present invention is not limited to this example, and is shown by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

本実施形態は、基板９０（プリント回路基板）の表面に実装されるコネクタ１０の構造を例示するものである。コネクタ１０は、ハウジング２０と、ハウジング２０に装着される複数の端子金具６０と、を備えている。ハウジング２０は、図示しない相手ハウジングに嵌合可能とされている。なお、以下の説明において、前後方向は、図１の右側および図２の紙面手前側を前側とする。前側は、相手ハウジングに対してハウジング２０が嵌合する側である。上下方向は、図４を除く各図を基準とする。左右方向は、幅方向と同義であり、図２および図３の左右方向を基準とする。 This embodiment illustrates the structure of the connector 10 mounted on the surface of the substrate 90 (printed circuit board). The connector 10 includes a housing 20 and a plurality of terminal fittings 60 mounted on the housing 20. The housing 20 can be fitted to a mating housing (not shown). In the following description, the front-back direction is the right side of FIG. 1 and the front side of the paper in FIG. 2 as the front side. The front side is the side where the housing 20 fits into the mating housing. The vertical direction is based on each figure except FIG. 4. The left-right direction is synonymous with the width direction, and is based on the left-right direction of FIGS. 2 and 3.

＜ハウジング＞
ハウジング２０は合成樹脂製であって、ハウジング本体２１を有している。図２に示すように、ハウジング本体２１は、全体として角筒状をなし、奥壁部２２、一対の側壁部２３、上壁部２４および下壁部２５を有している。ハウジング本体２１内には、相手ハウジングを嵌合可能な嵌合空間２６が前方に開放して設けられている。 <Housing>
The housing 20 is made of synthetic resin and has a housing body 21. As shown in FIG. 2, the housing main body 21 has a square cylinder shape as a whole, and has a back wall portion 22, a pair of side wall portions 23, an upper wall portion 24, and a lower wall portion 25. A fitting space 26 into which the mating housing can be fitted is provided in the housing main body 21 so as to be open forward.

奥壁部２２は、背面視矩形状をなし、ハウジング本体２１の後面を閉塞する。図１および図３に示すように、奥壁部２２の上下中間部には、突壁２７が後方に突出して設けられている。図３に示すように、突壁２７は、幅方向に延びるリブ状をなしている。奥壁部２２には、複数の装着孔２８が貫通して設けられている。各装着孔２８は、突壁２７を貫通する形状であって、幅方向に一列に並んで配置されている。図１に示すように、装着孔２８には、端子金具６０が貫通して装着されている。 The back wall portion 22 has a rectangular shape when viewed from the rear, and closes the rear surface of the housing body 21. As shown in FIGS. 1 and 3, a protruding wall 27 is provided so as to project rearward in the upper and lower intermediate portions of the back wall portion 22. As shown in FIG. 3, the protrusion 27 has a rib shape extending in the width direction. A plurality of mounting holes 28 are provided through the back wall portion 22. The mounting holes 28 have a shape penetrating the protruding wall 27 and are arranged side by side in a row in the width direction. As shown in FIG. 1, the terminal fitting 60 is mounted through the mounting hole 28.

図３に示すように、奥壁部２２の左右両端には、一対の保護壁２９が後方に突出して設けられている。各保護壁２９の間には、各端子金具６０の後述する延出部６３および基板接続部６４が配置される。 As shown in FIG. 3, a pair of protective walls 29 are provided on the left and right ends of the back wall portion 22 so as to project rearward. An extension portion 63 and a board connection portion 64 of each terminal fitting 60, which will be described later, are arranged between the protective walls 29.

一対の側壁部２３は、奥壁部２２の左右両端に連結され、ハウジング本体２１の左右両面を閉塞する。図１に示すように、側壁部２３の外面（左右外側を向く面）は、上下方向および前後方向に沿って配置され、奥壁部２２を介して保護壁２９の外面と段差なく連続している。 The pair of side wall portions 23 are connected to the left and right ends of the back wall portion 22 and close both the left and right sides of the housing body 21. As shown in FIG. 1, the outer surface of the side wall portion 23 (the surface facing the left-right outer side) is arranged along the vertical direction and the front-rear direction, and is continuous with the outer surface of the protective wall 29 via the back wall portion 22 without a step. There is.

上壁部２４は、奥壁部２２および各側壁部２３のそれぞれの上端に連結され、ハウジング本体２１の上面を閉塞する。図２に示すように、上壁部２４の左右両端寄りの位置には、一対の垂下壁３１が嵌合空間２６内に突出して設けられている。各垂下壁３１は、不正の嵌合姿勢をとる相手ハウジングと干渉し、ハウジング２０に対する相手ハウジングの誤嵌合を規制する役割を有している。また、上壁部２４の内面には、相手ハウジングを嵌合状態に保持する図示しないロック部が設けられている。 The upper wall portion 24 is connected to the upper ends of the back wall portion 22 and each side wall portion 23, and closes the upper surface of the housing main body 21. As shown in FIG. 2, a pair of hanging walls 31 are provided so as to project into the fitting space 26 at positions near the left and right ends of the upper wall portion 24. Each hanging wall 31 has a role of interfering with a mating housing that takes an improper fitting posture and restricting misfitting of the mating housing with respect to the housing 20. Further, on the inner surface of the upper wall portion 24, a lock portion (not shown) for holding the mating housing in the fitted state is provided.

下壁部２５は、奥壁部２２および各側壁部２３のそれぞれの下端に連結され、ハウジング本体２１の下面を閉塞する。下壁部２５は、基板９０の表面（図１～図３に示す基板９０の上面）に対向する平坦な底面３２を有している。図１に示すように、ハウジング本体２１の底面３２と基板９０の表面との間には、後述する段差４０によって隙間７０が形成される。 The lower wall portion 25 is connected to the lower ends of the back wall portion 22 and each side wall portion 23, and closes the lower surface of the housing main body 21. The lower wall portion 25 has a flat bottom surface 32 facing the surface of the substrate 90 (the upper surface of the substrate 90 shown in FIGS. 1 to 3). As shown in FIG. 1, a gap 70 is formed between the bottom surface 32 of the housing body 21 and the surface of the substrate 90 by a step 40 described later.

図２および図４に示すように、下壁部２５は、複数の肉抜き部３３を有している。各肉抜き部３３は、それぞれ、下壁部２５の底面３２の前部（前半部）に、凹状に開口している。各肉抜き部３３は、下壁部２５の前部の樹脂量を減少させる。 As shown in FIGS. 2 and 4, the lower wall portion 25 has a plurality of lightening portions 33. Each of the lightening portions 33 has a concave opening in the front portion (front half portion) of the bottom surface 32 of the lower wall portion 25. Each lightening portion 33 reduces the amount of resin in the front portion of the lower wall portion 25.

各肉抜き部３３は、図２に示すように、断面弧状、詳細には断面半円状をなし、前後方向に延びる形状になっている。図４に示すように、各肉抜き部３３の前端は、下壁部２５の前端に開口している。各肉抜き部３３の後端は、下壁部２５の前後中間部で閉塞されている。そして、各肉抜き部３３は、それぞれ同一の形状をなし、幅方向に一定ピッチに並んで配置されている。例えば、ハウジング２０が樹脂材料中にガラス繊維を混合して成形される場合に、ガラス繊維の配向は、肉抜き部３３において、一方向に揃うことなく乱れた状態になる。その結果、ハウジング２０は、反りの発生しにくい構造になる。 As shown in FIG. 2, each lightening portion 33 has an arc-shaped cross section, specifically a semicircular cross-section, and has a shape extending in the front-rear direction. As shown in FIG. 4, the front end of each lightening portion 33 is open to the front end of the lower wall portion 25. The rear end of each lightening portion 33 is closed at the front-rear intermediate portion of the lower wall portion 25. The lightening portions 33 have the same shape and are arranged side by side at a constant pitch in the width direction. For example, when the housing 20 is formed by mixing glass fibers in a resin material, the orientation of the glass fibers is disturbed in the lightening portion 33 without being aligned in one direction. As a result, the housing 20 has a structure in which warpage is unlikely to occur.

また、ハウジング２０は、下壁部２５の底面３２から下方に突出する複数の取付部３４を有している。図４に示すように、各取付部３４は、下壁部２５の底面３２の前後中間部でかつ左右両端寄りの位置に、対をなして配置される。上述した各肉抜き部３３は、各取付部３４よりも前方に位置している。 Further, the housing 20 has a plurality of mounting portions 34 protruding downward from the bottom surface 32 of the lower wall portion 25. As shown in FIG. 4, the mounting portions 34 are arranged in pairs at the front and rear intermediate portions of the bottom surface 32 of the lower wall portion 25 and at positions near the left and right ends. Each of the lightening portions 33 described above is located in front of each mounting portion 34.

図５に示すように、取付部３４は、下壁部２５の底面３２に突設された座部３５と、座部３５から下方に突出する胴部３６と、胴部３６から下方に二股状に延びる左右それぞれの弾性ロック３７、３８と、を有している。 As shown in FIG. 5, the mounting portion 34 has a seat portion 35 projecting from the bottom surface 32 of the lower wall portion 25, a body portion 36 protruding downward from the seat portion 35, and a bifurcated portion downward from the body portion 36. It has left and right elastic locks 37 and 38 extending to the left and right sides, respectively.

座部３５は、図４に示すように矩形で図１の側面視で扁平台状をなし、基板９０の表面に接触する基準面３９を有している。図１に示すように、座部３５の基準面３９とハウジング本体２１の底面３２とは、上下方向の段差４０を介して、互いに平行に配置される。座部３５の基準面３９は、座部３５の下面において胴部３６の基端周りに平坦（水平）に形成され、コプラナリティを測定する際の基準になる。座部３５の後面は、基準面３９側からハウジング本体２１の底面３２側にかけて後方に傾斜する斜面４１になっている。 As shown in FIG. 4, the seat portion 35 is rectangular and has a flat trapezoidal shape in the side view of FIG. 1, and has a reference surface 39 in contact with the surface of the substrate 90. As shown in FIG. 1, the reference surface 39 of the seat portion 35 and the bottom surface 32 of the housing main body 21 are arranged in parallel with each other via a step 40 in the vertical direction. The reference surface 39 of the seat portion 35 is formed flat (horizontally) around the base end of the body portion 36 on the lower surface of the seat portion 35, and serves as a reference for measuring coplanarity. The rear surface of the seat portion 35 is a slope 41 that inclines rearward from the reference surface 39 side to the bottom surface 32 side of the housing main body 21.

胴部３６は、上下方向に沿った円柱状をなし、一定の形状を保持する形状保持性を有している。図５に示すように、胴部３６は、各弾性ロック３７、３８とともに、基板９０に貫通して形成された孔９１に挿入される。 The body portion 36 has a columnar shape along the vertical direction and has a shape-retaining property that maintains a constant shape. As shown in FIG. 5, the body portion 36 is inserted into a hole 91 formed through the substrate 90 together with the elastic locks 37 and 38.

各弾性ロックは、図２から図４に示すように、ハウジング２０の幅方向外側（側壁部２３側）に位置する本体ロック部３７と、ハウジング２０の幅方向内側（幅方向中央側）に位置するガタ詰めロック部３８と、を有している。図５に示すように、本体ロック部３７とガタ詰めロック部３８との間には、スリット溝４２が形成されている。スリット溝４２は、取付部３４を前後方向に貫通し、下方に開放されている。本体ロック部３７とガタ詰めロック部３８は、胴部３６に連なる部位を支点として、スリット溝４２の溝幅を拡縮する方向（左右方向）に撓み変形可能とされている。 As shown in FIGS. 2 to 4, each elastic lock is located on the main body lock portion 37 located on the outer side in the width direction (side wall portion 23 side) of the housing 20 and on the inner side in the width direction (center side in the width direction) of the housing 20. It has a backlash-filled lock portion 38 and a lock portion 38. As shown in FIG. 5, a slit groove 42 is formed between the main body lock portion 37 and the backlash-filling lock portion 38. The slit groove 42 penetrates the mounting portion 34 in the front-rear direction and is opened downward. The main body lock portion 37 and the backlash-filling lock portion 38 can be flexed and deformed in a direction (left-right direction) in which the groove width of the slit groove 42 is expanded or contracted, with a portion connected to the body portion 36 as a fulcrum.

図５に示すように、本体ロック部３７は、全体として上下方向に真っ直ぐ延びる形状とされ、下端部に外向きに突出する爪状の係止突起４３を有している。係止突起４３の上面は、基板９０の裏面に係止可能な係止面４４になっている。係止面４４は、前後方向および左右方向に沿って配置される。 As shown in FIG. 5, the main body locking portion 37 has a shape extending straight in the vertical direction as a whole, and has a claw-shaped locking projection 43 protruding outward at the lower end portion. The upper surface of the locking projection 43 is a locking surface 44 that can be locked to the back surface of the substrate 90. The locking surface 44 is arranged along the front-rear direction and the left-right direction.

図５に示すように、ガタ詰めロック部３８は、全体として上下方向に延び、途中で屈曲する形状になっている。ガタ詰めロック部３８の左右寸法（厚さ）は、本体ロック部３７の左右寸法（厚さ）よりも大きい。ガタ詰めロック部３８は、本体ロック部３７から離れる方向に突となる形状である。ガタ詰めロック部３８の屈曲の頂部４５は、基板９０の孔９１の内面に接触する。 As shown in FIG. 5, the backlash-filled lock portion 38 has a shape that extends in the vertical direction as a whole and bends in the middle. The left-right dimension (thickness) of the backlash-filled lock portion 38 is larger than the left-right dimension (thickness) of the main body lock portion 37. The backlash-filled lock portion 38 has a shape that protrudes in the direction away from the main body lock portion 37. The bent top 45 of the backlash-filled lock portion 38 comes into contact with the inner surface of the hole 91 of the substrate 90.

また、ハウジング２０は、一対の第２取付部４６を有している。図４に示すように、各第２取付部４６は、下壁部２５の底面３２において、各弾性ロック３７、３８よりも後方の位置に突出して形成されている。各第２取付部４６は、各取付部３４よりもハウジング２０の幅方向内側（幅方向中央側）に配置される。図２および図３に示すように、第２取付部４６は、第２胴部４７と、第２胴部４７から下方に二股状に延びる左右一対の第２弾性ロック４８と、を有している。第２胴部４７および第２弾性ロック４８は、基板９０に貫通して形成された第２孔９２に挿入される。 Further, the housing 20 has a pair of second mounting portions 46. As shown in FIG. 4, each second mounting portion 46 is formed so as to project from the bottom surface 32 of the lower wall portion 25 to a position behind the elastic locks 37 and 38. Each second mounting portion 46 is arranged inside the housing 20 in the width direction (center side in the width direction) with respect to each mounting portion 34. As shown in FIGS. 2 and 3, the second mounting portion 46 has a second body portion 47 and a pair of left and right second elastic locks 48 extending downward from the second body portion 47 in a bifurcated manner. There is. The second body portion 47 and the second elastic lock 48 are inserted into the second hole 92 formed through the substrate 90.

左右一対の第２弾性ロック４８は、互いに同一の形状であって、上述した本体ロック部３７と同様の機能を有している。各第２弾性ロック４８の下端部には、係止突起４３に相当する第２係止突起４９が設けられている。各第２弾性ロック４８は、第２胴部４７に連なる部位を支点として、左右方向に撓み変形可能とされている。 The pair of left and right second elastic locks 48 have the same shape as each other and have the same function as the main body lock portion 37 described above. A second locking projection 49 corresponding to the locking projection 43 is provided at the lower end of each second elastic lock 48. Each second elastic lock 48 can be flexed and deformed in the left-right direction with a portion connected to the second body portion 47 as a fulcrum.

＜端子金具＞
端子金具６０は導電金属製であって、全体としてピン状またはタブ状をなし、図１に示すように、先端から順に、端子接続部６１、装着部６２、延出部６３および基板接続部６４を連ねて構成される。端子接続部６１および装着部６２は、前後方向に沿って配置される。延出部６３は、装着部６２の後端から下方に延びて配置される。基板接続部６４は、延出部６３の後端から後方に延びて配置される。 <Terminal bracket>
The terminal fitting 60 is made of conductive metal and has a pin-like shape or a tab-like shape as a whole. It is composed of a series of. The terminal connection portion 61 and the mounting portion 62 are arranged along the front-rear direction. The extending portion 63 is arranged so as to extend downward from the rear end of the mounting portion 62. The board connecting portion 64 is arranged so as to extend rearward from the rear end of the extending portion 63.

装着部６２は、ハウジング本体２１の奥壁部２２の装着孔２８に圧入して装着される。端子接続部６１は、ハウジング本体２１の嵌合空間２６内に突出して配置される。ハウジング２０が相手ハウジングに嵌合されると、端子接続部６１が図示しない相手端子金具に接続される。 The mounting portion 62 is press-fitted into the mounting hole 28 of the back wall portion 22 of the housing body 21 to be mounted. The terminal connection portion 61 is arranged so as to project into the fitting space 26 of the housing main body 21. When the housing 20 is fitted to the mating housing, the terminal connecting portion 61 is connected to the mating terminal fitting (not shown).

基板接続部６４は、下面に接続面６５を有している。基板接続部６４の接続面６５は、基板９０の表面に対向し、基板９０の表面に形成された図示しない導電部に半田付けして接続される。 The board connecting portion 64 has a connecting surface 65 on the lower surface. The connection surface 65 of the substrate connection portion 64 faces the surface of the substrate 90 and is soldered and connected to a conductive portion (not shown) formed on the surface of the substrate 90.

＜コネクタ構造＞
コネクタ１０が基板９０の表面に載せられると、各端子金具６０の接続面６５が基板９０の表面に接触する。また、取付部３４および第２取付部４６がそれぞれ基板９０の孔９１および第２孔９２に挿入され、弾性ロック３７、３８および第２弾性ロック４８の撓み動作を伴ったあと、係止突起４３および第２係止突起４９がそれぞれ基板９０の裏面における孔９１の開口縁および第２孔９２の開口縁に係止可能に配置される。そして、取付部３４の基準面３９が基板９０の表面に接触して配置される。これにより、コネクタ１０が基板９０に対して離脱を規制された状態に取り付けられる。 <Connector structure>
When the connector 10 is placed on the surface of the substrate 90, the connection surface 65 of each terminal fitting 60 comes into contact with the surface of the substrate 90. Further, the mounting portion 34 and the second mounting portion 46 are inserted into the holes 91 and the second holes 92 of the substrate 90, respectively, and the elastic locks 37 and 38 and the second elastic lock 48 are bent, and then the locking projection 43 is formed. The second locking projection 49 and the second locking projection 49 are arranged so as to be lockable on the opening edge of the hole 91 and the opening edge of the second hole 92 on the back surface of the substrate 90, respectively. Then, the reference surface 39 of the mounting portion 34 is arranged in contact with the surface of the substrate 90. As a result, the connector 10 is attached in a state where the detachment of the connector 10 is restricted with respect to the substrate 90.

コネクタ１０が基板９０に取り付けられたときに、本体ロック部３７および第２弾性ロック４８は、自然状態に弾性復帰する。これに対し、ガタ詰めロック部３８は、基板９０の孔９１内に屈曲状態に配置され、基板９０の孔９１の内面に対して弾性力を付与しつつ頂部４５を接触させる（図５を参照）。これにより、基板９０の孔９１内における取付部３４のガタ付きが抑えられる。その結果、取付部３４の基準面３９が基板９０の表面に接触し、かつ係止突起４３の係止面４４が基板９０の裏面に接触する状態を良好に維持することができる。 When the connector 10 is attached to the substrate 90, the main body lock portion 37 and the second elastic lock 48 elastically return to the natural state. On the other hand, the backlash-filled lock portion 38 is arranged in a bent state in the hole 91 of the substrate 90, and brings the top portion 45 into contact with the inner surface of the hole 91 of the substrate 90 while applying an elastic force (see FIG. 5). ). As a result, rattling of the mounting portion 34 in the hole 91 of the substrate 90 is suppressed. As a result, it is possible to satisfactorily maintain a state in which the reference surface 39 of the mounting portion 34 is in contact with the front surface of the substrate 90 and the locking surface 44 of the locking projection 43 is in contact with the back surface of the substrate 90.

取付部３４の基準面３９が基板９０の表面に接触した状態において、ハウジング本体２１の底面３２は、基板９０の表面との間に隙間７０を置いて配置される。図１に示すように、コネクタ１０の前部側は、基板９０の前端よりも前方に突出して配置される。よって、基板９０の表面におけるコネクタ１０の占有面積が小さく抑えられる。なお、本実施形態の場合、座部３５の前端と基板９０の前端は、前後方向において同一位置に揃うように配置される。よって、基板９０へのコネクタ１０の専有面積を小さく抑えることができる。 The bottom surface 32 of the housing body 21 is arranged with a gap 70 between it and the surface of the substrate 90 in a state where the reference surface 39 of the mounting portion 34 is in contact with the surface of the substrate 90. As shown in FIG. 1, the front side of the connector 10 is arranged so as to project forward from the front end of the substrate 90. Therefore, the occupied area of the connector 10 on the surface of the substrate 90 can be kept small. In the case of the present embodiment, the front end of the seat portion 35 and the front end of the substrate 90 are arranged so as to be aligned at the same position in the front-rear direction. Therefore, the area occupied by the connector 10 to the substrate 90 can be kept small.

上述した場合において、コネクタ１０が基板９０に接触する部分は、各端子金具６０の接続面６５と各取付部３４の基準面３９である。言い換えれば、コネクタ１０において、接続面６５と基準面３９以外の部分は、基板９０の表面に接触しない。コネクタ１０の後部側は、各肉抜き部３３を有さず、各端子金具６０を備えていることから、コネクタ１０の前部側よりも重くなる。よって、コネクタ１０の重心は、各取付部３４よりも後方であるハウジング２０の後部側に位置することになる。その結果、コネクタ１０は、各端子金具６０の接続面６５と各取付部３４の基準面３９とが基板９０の表面に接触した状態で、基板９０に安定して支持されることになる。 In the above case, the portion where the connector 10 contacts the substrate 90 is the connection surface 65 of each terminal fitting 60 and the reference surface 39 of each mounting portion 34. In other words, in the connector 10, the portion other than the connection surface 65 and the reference surface 39 does not come into contact with the surface of the substrate 90. Since the rear side of the connector 10 does not have each lightening portion 33 and is provided with each terminal fitting 60, it is heavier than the front side of the connector 10. Therefore, the center of gravity of the connector 10 is located on the rear side of the housing 20 which is behind each mounting portion 34. As a result, the connector 10 is stably supported by the substrate 90 in a state where the connection surface 65 of each terminal fitting 60 and the reference surface 39 of each mounting portion 34 are in contact with the surface of the substrate 90.

ところで、各端子金具６０の接続面６５は、基板９０の表面における導電部に適正に接続されるように、それぞれの高さを許容範囲内に収める必要がある。このため、コネクタ１０においては、各端子金具６０の接続面６５の高さのばらつき（いわゆるコプラナリティ）を管理することが求められる。
ここで、コネクタ１０は、各端子金具６０の接続面６５と各取付部３４の基準面３９とが基板９０の表面に接触するため、各取付部３４の基準面３９がコプラナリティを測定する際の基準になる。 By the way, the height of the connection surface 65 of each terminal fitting 60 needs to be within an allowable range so as to be properly connected to the conductive portion on the surface of the substrate 90. Therefore, in the connector 10, it is required to manage the variation in height (so-called coplanarity) of the connection surface 65 of each terminal fitting 60.
Here, in the connector 10, since the connection surface 65 of each terminal fitting 60 and the reference surface 39 of each mounting portion 34 come into contact with the surface of the substrate 90, the reference surface 39 of each mounting portion 34 measures the coplanarity. Become a standard.

例えば、本実施形態と異なり、ハウジング本体２１の底面３２が基板９０の表面に接触し、基準面がハウジング本体２１の底面３２で構成されるとすると、ハウジング本体２１の底面３２全体が基板９０の表面に接触する状態を担保することができない。このため、基準面の位置が一定に定まらず、基準面としての信頼性に欠ける懸念がある。 For example, unlike the present embodiment, assuming that the bottom surface 32 of the housing body 21 is in contact with the surface of the substrate 90 and the reference surface is composed of the bottom surface 32 of the housing body 21, the entire bottom surface 32 of the housing body 21 is the substrate 90. It is not possible to guarantee the state of contact with the surface. Therefore, the position of the reference plane is not fixed, and there is a concern that the reliability as the reference plane is lacking.

また、例えば、本実施形態と異なり、取付部３４とは別の部位に基準面を設けるとすると、取付部３４の取り付け機能が損なわれないように、基準面を取付部３４よりも前側に設けなければならず、基板９０に対するコネクタ１０の占有する前後寸法が大型化する懸念がある。 Further, for example, unlike the present embodiment, if the reference surface is provided at a portion different from the mounting portion 34, the reference surface is provided on the front side of the mounting portion 34 so that the mounting function of the mounting portion 34 is not impaired. Therefore, there is a concern that the front-rear dimension occupied by the connector 10 with respect to the substrate 90 will increase.

その点、上述した基準面３９は取付部３４と一体化しているため、コネクタ１０の前後寸法の大型化を招くことがなく、基板９０の表面におけるコネクタ１０の占有面積を小さくすることができる。その結果、基板９０の設計レイアウトの自由度を高めることができる。 In that respect, since the reference surface 39 described above is integrated with the mounting portion 34, the front-rear dimension of the connector 10 does not increase in size, and the occupied area of the connector 10 on the surface of the substrate 90 can be reduced. As a result, the degree of freedom in the design layout of the substrate 90 can be increased.

コネクタ１０は、基板９０の表面に載せられた状態で、リフロー工程に移される。各端子金具６０の基板接続部６４は、リフロー工程を経て基板９０の導電部に半田付けして接続される。コネクタ１０がリフロー炉の中で加熱されると、ハウジング２０に反りが発生する懸念がある。仮に、ハウジング２０に反りが発生すると、各端子金具６０の高さにばらつきが生じてしまう。しかし、本実施形態の場合、ハウジング２０の底面３２に複数の肉抜き部３３が設けられ、各肉抜き部３３が幅方向に並んで配置されていることから、既述したように、ガラス繊維などの配向を乱すことができ、ハウジング２０に反りが発生するのを効果的に抑えることができる。 The connector 10 is transferred to the reflow process while being mounted on the surface of the substrate 90. The board connection portion 64 of each terminal fitting 60 is soldered and connected to the conductive portion of the board 90 through a reflow process. When the connector 10 is heated in the reflow furnace, there is a concern that the housing 20 may be warped. If the housing 20 is warped, the height of each terminal fitting 60 will vary. However, in the case of the present embodiment, since a plurality of lightening portions 33 are provided on the bottom surface 32 of the housing 20 and the lightening portions 33 are arranged side by side in the width direction, as described above, the glass fiber. It is possible to disturb the orientation of the housing 20 and the like, and it is possible to effectively suppress the occurrence of warpage in the housing 20.

以上説明したように、本実施形態によれば、コプラナリティを測定する際の基準面３９が取付部３４に一体に設けられているため、ハウジング２０に基準面３９と取付部３４が別々に設けられるよりも、基板９０に対するコネクタ１０の占有面積を減らすことができ、前後方向の大型化を抑えることができる。その結果、基板９０の設計レイアウトの自由度を高めることができる。 As described above, according to the present embodiment, since the reference surface 39 for measuring the coplanarity is integrally provided in the mounting portion 34, the reference surface 39 and the mounting portion 34 are separately provided in the housing 20. As a result, the area occupied by the connector 10 with respect to the substrate 90 can be reduced, and the size of the connector 10 in the front-rear direction can be suppressed. As a result, the degree of freedom in the design layout of the substrate 90 can be increased.

また、ハウジング本体２１の底面３２に複数の肉抜き部３３が設けられ、取付部３４にガタ詰めロック部３８が設けられていることにより、取付部３４の基準面３９が基板９０の表面に接触する状態を良好に実現することができる。その結果、コプラナリティを測定する際の信頼性を高めることができる。 Further, a plurality of lightening portions 33 are provided on the bottom surface 32 of the housing main body 21, and the backlash-filling lock portion 38 is provided on the mounting portion 34, so that the reference surface 39 of the mounting portion 34 comes into contact with the surface of the substrate 90. It is possible to achieve a good condition. As a result, reliability in measuring coplanarity can be improved.

［本開示の他の実施形態］
今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えるべきである。
本実施形態の場合、ハウジングには第２取付部が設けられていたが、他の実施形態としては、ハウジングから第２取付部を省略しても良い。
本実施形態の場合、肉抜き部はハウジング本体の底面に有底に凹設されていたが、他の実施形態として、肉抜き部はハウジング本体の下壁部を貫通して設けられていても良い。また、本実施形態の場合、肉抜き部は半円状の断面形状を呈していたが、他の実施形態として、肉抜き部は三角形や四角形などの多角形の断面形状を呈していても良い。
本実施形態の場合、取付部は、座部、胴部および弾性ロックを有して構成されていたが、他の実施形態として、取付部は、胴部を有さず、座部および弾性ロックで構成されていても良い。
本実施形態の場合、弾性ロックは本体ロック部とガタ詰めロック部とを有していたが、他の実施形態として、弾性ロックは一対のガタ詰めロック部のみで構成されていても良い。あるいは、弾性ロックは一対の本体ロック部のみで構成されていても良い。 [Other embodiments of the present disclosure]
It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive.
In the case of this embodiment, the housing is provided with the second mounting portion, but in another embodiment, the second mounting portion may be omitted from the housing.
In the case of the present embodiment, the lightening portion is recessed in the bottom surface of the housing body, but as another embodiment, the lightening portion may be provided so as to penetrate the lower wall portion of the housing body. good. Further, in the case of the present embodiment, the lightening portion has a semicircular cross-sectional shape, but as another embodiment, the lightening portion may have a polygonal cross-sectional shape such as a triangle or a quadrangle. ..
In the case of the present embodiment, the mounting portion is configured to have a seat portion, a body portion and an elastic lock, but as another embodiment, the mounting portion does not have a body portion and has a seat portion and an elastic lock. It may be composed of.
In the case of the present embodiment, the elastic lock has a main body lock portion and a loose packing lock portion, but as another embodiment, the elastic lock may be composed of only a pair of loose packing lock portions. Alternatively, the elastic lock may be composed of only a pair of main body lock portions.

１０…コネクタ
２０…ハウジング
２１…ハウジング本体
２２…奥壁部
２３…側壁部
２４…上壁部
２５…下壁部
２６…嵌合空間
２７…突壁
２８…装着孔
２９…保護壁
３１…垂下壁
３２…底面
３３…肉抜き部
３４…取付部
３５…座部
３６…胴部
３７…本体ロック部（弾性ロック）
３８…ガタ詰めロック部（弾性ロック）
３９…基準面
４０…段差
４１…斜面
４２…スリット溝
４３…係止突起
４４…係止面
４５…頂部
４６…第２取付部
４７…第２胴部
４８…第２弾性ロック
４９…第２係止突起
６０…端子金具
６１…端子接続部
６２…装着部
６３…延出部
６４…基板接続部
６５…接続面
７０…隙間
９０…基板
９１…孔
９２…第２孔 10 ... Connector 20 ... Housing 21 ... Housing body 22 ... Back wall part 23 ... Side wall part 24 ... Upper wall part 25 ... Lower wall part 26 ... Fitting space 27 ... Protruding wall 28 ... Mounting hole 29 ... Protective wall 31 ... Hanging wall 32 ... Bottom surface 33 ... Lightening part 34 ... Mounting part 35 ... Seat part 36 ... Body part 37 ... Main body lock part (elastic lock)
38 ... Rattling lock part (elastic lock)
39 ... Reference surface 40 ... Step 41 ... Slope 42 ... Slit groove 43 ... Locking protrusion 44 ... Locking surface 45 ... Top 46 ... Second mounting part 47 ... Second body 48 ... Second elastic lock 49 ... Second elastic lock 49 ... Second Stop protrusion 60 ... Terminal metal fittings 61 ... Terminal connection part 62 ... Mounting part 63 ... Extension part 64 ... Board connection part 65 ... Connection surface 70 ... Gap 90 ... Board 91 ... Hole 92 ... Second hole

Claims (4)

ハウジングと端子金具とを備え、
前記ハウジングは、基板に対向する底面を有するハウジング本体と、前記底面から突出し、前記基板に係止される取付部と、を有し、
前記端子金具は、前記ハウジング本体に装着される装着部と、前記装着部よりも後方に位置して前記基板の表面に接続される基板接続部と、を有し、
前記取付部は、前記基板の表面に接触する基準面を有し、前記基準面と前記底面との間に段差が設けられている、コネクタ構造。 Equipped with a housing and terminal fittings,
The housing has a housing body having a bottom surface facing the substrate, and a mounting portion protruding from the bottom surface and locked to the substrate.
The terminal fitting has a mounting portion mounted on the housing body and a substrate connecting portion located rearward of the mounting portion and connected to the surface of the substrate.
The mounting portion has a reference surface that comes into contact with the surface of the substrate, and has a connector structure in which a step is provided between the reference surface and the bottom surface. 前記ハウジング本体は、前記取付部よりも前方の領域に、肉抜き部を有している、請求項１に記載のコネクタ構造。 The connector structure according to claim 1, wherein the housing body has a lightening portion in a region in front of the mounting portion. 前記肉抜き部は、前記底面に開口する凹状をなし、前記底面に幅方向に複数並んで配置される、請求項２に記載のコネクタ構造。 The connector structure according to claim 2, wherein the lightening portion has a concave shape that opens to the bottom surface, and a plurality of the lightening portions are arranged side by side in the width direction on the bottom surface. 前記取付部は、前記基板の孔内に配置される撓み変形可能な弾性ロックを有し、前記弾性ロックは、前記基板の孔の内面に接するガタ詰めロック部を有している、請求項１から請求項３のいずれか１項に記載のコネクタ構造。 The mounting portion has a flexible and deformable elastic lock arranged in the hole of the substrate, and the elastic lock has a backlash-filled lock portion in contact with the inner surface of the hole of the substrate, claim 1. The connector structure according to any one of claims 3.
JP2020177847A 2020-10-23 2020-10-23 Connector structure Pending JP2022068976A (en)

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