JP2009252696A - Board connector - Google Patents

Board connector Download PDF

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Publication number
JP2009252696A
JP2009252696A JP2008102680A JP2008102680A JP2009252696A JP 2009252696 A JP2009252696 A JP 2009252696A JP 2008102680 A JP2008102680 A JP 2008102680A JP 2008102680 A JP2008102680 A JP 2008102680A JP 2009252696 A JP2009252696 A JP 2009252696A
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Prior art keywords
board
connector
housing
printed circuit
hole
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JP2008102680A
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Japanese (ja)
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Kazumasa Kobayashi
和将 小林
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Priority to JP2008102680A priority Critical patent/JP2009252696A/en
Publication of JP2009252696A publication Critical patent/JP2009252696A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a board connector fixable without causing looseness of a connector housing even if improper force is applied to a printed board in fixing the connector to the printed board through a fixing member provided for the connector housing. <P>SOLUTION: When fixing a housing 14 for housing terminals 18 and 20 connected to printed wiring 12 formed on a printed board 2 to the printed board 2 through snap fit terminals 28, each snap fit terminal 28 is provided with leg parts 36 inserted in through-holes 24 formed on the printed board 2; a lock part 38 locked by catching on an opening edge 24a on the back side of the through-hole 24 in the insertion direction is formed on a tip side of each leg part 36; and a plurality of step-like projections 40 are formed on the lock part 38. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、基板コネクタに関し、さらに詳しくは、プリント配線が形成されたプリント基板への信号の授受や電源供給のために取り付けられる基板コネクタに関するものである。   The present invention relates to a board connector, and more particularly to a board connector that is attached to a printed circuit board on which printed wiring is formed for transmission / reception of signals and power supply.

従来、自動車等の車両などに搭載される電子・電気機器には、電子部品やIC(集積回路)等が実装された多数のプリント基板が備えられており、これらのプリント基板には他の機器や他のプリント基板との信号の授受や電源供給のための電線が接続されている。そして、これらの電線とプリント基板とを中継接続するために、コネクタが用いられている。   2. Description of the Related Art Conventionally, electronic and electrical devices mounted on vehicles such as automobiles have been provided with a large number of printed boards on which electronic components, ICs (integrated circuits), and the like are mounted. Wires for transmitting / receiving signals to / from other printed circuit boards and power supply are connected. A connector is used to relay-connect these electric wires and the printed board.

このようなコネクタとしては、特許文献1に記載のように、内導体端子と、内導体端子の外周を覆う外導体端子と、両端子間を絶縁状態に保持する誘電体と、これらを収容するコネクタハウジングとを備えた基板用シールドコネクタなどが知られている。   As such a connector, as described in Patent Document 1, an inner conductor terminal, an outer conductor terminal that covers the outer periphery of the inner conductor terminal, a dielectric that keeps the two terminals in an insulated state, and these are accommodated. A board shield connector including a connector housing is known.

この基板用シールドコネクタ100は、図6に示すように、プリント基板102の端縁近傍の所定の部位に組付けられる。基板用シールドコネクタ100の下端から突出する内導体端子104の基板用組付タブ104aおよび外導体端子106の基板組付タブ106aが、プリント基板102に設けられたスルーホール104b,106bに挿入され、プリント基板102上の信号パターン108に半田などにより電気的に接続される。さらに、コネクタハウジング110の両側に突設される取付部112の取付孔112aとプリント基板102のピン孔114とを合わせ、組付ピン116を挿通して、基板用シールドコネクタ100はプリント基板102に固定される。   As shown in FIG. 6, the board shield connector 100 is assembled to a predetermined portion near the edge of the printed board 102. The board assembly tab 104a of the inner conductor terminal 104 protruding from the lower end of the board shield connector 100 and the board assembly tab 106a of the outer conductor terminal 106 are inserted into through holes 104b and 106b provided in the printed circuit board 102, The signal pattern 108 on the printed board 102 is electrically connected by soldering or the like. Further, the mounting hole 112a of the mounting portion 112 projecting on both sides of the connector housing 110 and the pin hole 114 of the printed circuit board 102 are aligned, and the assembly pin 116 is inserted, so that the board shield connector 100 is attached to the printed circuit board 102. Fixed.

特開2005−209423号公報JP 2005-209423 A

しかしながら、このような基板用シールドコネクタ100では、内導体端子104および外導体端子106の基板組付タブ104a、106aを挿通するピン孔を設けなければならず、また、コネクタハウジングが基板上に配置されるため、小型化の要請に応えるのが困難であった。   However, in such a board shield connector 100, pin holes for inserting the board assembly tabs 104a and 106a of the inner conductor terminal 104 and the outer conductor terminal 106 must be provided, and the connector housing is disposed on the board. Therefore, it has been difficult to meet the demand for downsizing.

そこで、図7に示すようにプリント基板122表面に内導体端子124および外導体端子126の接続片を接続する接続タブ124a、126aを設け、コネクタ120のコネクタハウジング128を嵌め込む切り欠きを設けた基板コネクタ140が考えられる。コネクタ120はコネクタハウジング128の両側に突設される取付部130に埋め込まれた固定部材132を介してプリント基板122に組み付けられる。   Therefore, as shown in FIG. 7, connection tabs 124a and 126a for connecting the connection pieces of the inner conductor terminal 124 and the outer conductor terminal 126 are provided on the surface of the printed circuit board 122, and a notch for fitting the connector housing 128 of the connector 120 is provided. A board connector 140 is contemplated. The connector 120 is assembled to the printed circuit board 122 via fixing members 132 embedded in attachment portions 130 protruding from both sides of the connector housing 128.

この固定部材132は、本体部134から延設された対からなる脚部136を有している。この脚部136の先端を互いに近づける方向に弾性変位させながらプリント基板122に設けられたコネクタ取付用貫通孔138に挿入していき、脚部136の先端に設けられた係止部136aがプリント基板122の挿入方向奥側に突出すると、脚部136の変位が復帰してコネクタ取付用貫通孔138の裏面側の開口縁138aに引っ掛かってプリント基板122に係止される。このようにしてコネクタ120をプリント基板122に仮止めした後、プリント基板122を裏返して、コネクタ取付用貫通孔138と、ここから突出した固定部材132の脚部136先端とを半田付けすることでコネクタ120をプリント基板122に固定する。   The fixing member 132 has a pair of leg portions 136 extending from the main body portion 134. The leg 136 is inserted into a connector mounting through-hole 138 provided in the printed circuit board 122 while being elastically displaced in a direction in which the legs 136 approach each other, and a locking part 136a provided at the tip of the leg 136 is a printed circuit board. When projecting inward in the insertion direction of 122, the displacement of the leg 136 is restored and hooked on the opening edge 138 a on the back surface side of the connector mounting through-hole 138 to be locked to the printed circuit board 122. After temporarily fixing the connector 120 to the printed circuit board 122 in this way, the printed circuit board 122 is turned upside down, and the connector mounting through-hole 138 and the tip of the leg portion 136 of the fixing member 132 protruding therefrom are soldered. The connector 120 is fixed to the printed circuit board 122.

ところが、このような固定部材132を有する基板コネクタ140は、脚部136の弾性変位する方向すなわち相手側コネクタとの嵌合方向(矢印xで示す方向)への固着力は強いが、それに比べて固定部材132の板厚方向(矢印yで示す方向)への固着力は弱いという傾向があった。   However, the board connector 140 having such a fixing member 132 has a strong adhering force in the direction in which the leg 136 is elastically displaced, that is, in the fitting direction with the mating connector (indicated by the arrow x). There is a tendency that the fixing force of the fixing member 132 in the plate thickness direction (direction indicated by the arrow y) is weak.

そのため、プリント基板122を裏返したときに、コネクタハウジング128が自重で下がって、プリント基板122とコネクタハウジング128との間に隙間ができ、その状態で半田付けすると半田にひびが入る等して接続が不安定になりやすいといった問題があった。   Therefore, when the printed circuit board 122 is turned upside down, the connector housing 128 is lowered by its own weight, and a gap is formed between the printed circuit board 122 and the connector housing 128. If soldering is performed in this state, the solder is cracked and connected. There was a problem that was likely to become unstable.

また、プリント基板122にコネクタ120を仮止めした状態において、プリント基板122に衝撃が加わったり、不用意にコネクタハウジング128が押されたりすると、開口縁138aに係止されていた係止部136aがずれたり傾いたりして、コネクタ120がプリント基板122から外れやすいといった問題もあった。   When the connector 120 is temporarily fixed to the printed circuit board 122, if the printed circuit board 122 is subjected to an impact or the connector housing 128 is inadvertently pressed, the locking portion 136a that is locked to the opening edge 138a is moved. There is also a problem that the connector 120 is easily detached from the printed circuit board 122 due to displacement or inclination.

そこで、本発明が解決しようとする課題は、コネクタハウジングに備えられる固定部材を介してコネクタをプリント基板に固定する際に、プリント基板に不用意な力が掛かってもコネクタハウジングをがたつくこと無く固定することができる基板コネクタを提供することにある。   Therefore, the problem to be solved by the present invention is to fix the connector housing without rattling even when an inadvertent force is applied to the printed circuit board when the connector is fixed to the printed circuit board through the fixing member provided in the connector housing. An object of the present invention is to provide a board connector that can be used.

上記課題を解決するため、本発明に係る基板コネクタは、基板上に形成されたプリント配線に接続される端子を収容するハウジングと、このハウジングを上記基板に固定する固定部材とを備える基板コネクタにおいて、上記固定部材は、上記基板に形成された貫通孔に挿通される脚部を備え、該脚部の先端側には、上記貫通孔に正規位置まで挿入された状態において上記貫通孔の挿入方向奥側の開口縁に引っ掛かって係止する係止部が設けられ、上記係止部には、上記貫通孔の上記開口縁に多段階的に係合される階段状の複数の突起が形成されていることを要旨とするものである。   In order to solve the above-mentioned problems, a board connector according to the present invention is a board connector including a housing that accommodates terminals connected to printed wiring formed on a board, and a fixing member that fixes the housing to the board. The fixing member includes a leg portion that is inserted into a through hole formed in the substrate, and the insertion direction of the through hole is inserted into the through hole to a normal position at a distal end side of the leg portion. A locking portion that is hooked and locked to the opening edge on the back side is provided, and the locking portion is formed with a plurality of step-like protrusions that are engaged with the opening edge of the through hole in a multistage manner. It is a summary.

この場合、上記係止部は上記脚部から外方向に張出し形成され、上記貫通孔の上記開口縁に多段階的に係合される階段状の複数の上記突起は、その係止部の外側面に形成されていることが望ましい。   In this case, the locking portion is formed to project outward from the leg portion, and the plurality of step-shaped protrusions that are engaged with the opening edge of the through hole in a multi-step manner are formed on the outside of the locking portion. It is desirable that it be formed on the side surface.

また、上記固定部材は上記脚部を対で有しており、上記基板に形成されている対の貫通孔を備え、それぞれの脚部が挿通されていることが望ましい。   The fixing member preferably includes a pair of the leg portions, includes a pair of through holes formed in the substrate, and each leg portion is inserted therethrough.

本発明に係る基板コネクタによれば、コネクタハウジングをプリント基板に固定部材を介して取付固定するに際して、固定部材の脚部をプリント基板の貫通孔に挿通したときに階段状の複数の突起が貫通孔の開口縁に多段階的に係合するため、不用意にコネクタハウジングがプリント基板から浮き難い。また、仮止めされたプリント基板に衝撃が加わったり、不用意に押されたりしてもコネクタハウジングがプリント基板から外れ難い。そのため、コネクタハウジングをがたつくこと無くプリント基板に固定することができる。そして、半田付けの作業性を改善することができるとともに、コネクタがプリント基板に接続された後の安定した使用状態を確保することができる。   According to the board connector of the present invention, when the connector housing is mounted and fixed to the printed board via the fixing member, the plurality of stepped protrusions penetrate when the leg portion of the fixing member is inserted into the through hole of the printed board. Since the multi-step engagement with the opening edge of the hole is made, it is difficult for the connector housing to inadvertently float from the printed circuit board. Further, even if an impact is applied to the temporarily fixed printed circuit board or the printed circuit board is inadvertently pressed, the connector housing does not easily come off the printed circuit board. Therefore, the connector housing can be fixed to the printed circuit board without rattling. And while improving the workability | operativity of soldering, the stable use state after a connector is connected to a printed circuit board can be ensured.

この場合、係止部が脚部から外方向に張出し形成され、上記突起が係止部の外側面に形成されていれば、コネクタハウジングのがたつきをより抑えることができる。   In this case, rattling of the connector housing can be further suppressed if the locking portion is formed to project outward from the leg portion and the protrusion is formed on the outer surface of the locking portion.

さらに、固定部材が脚部を対で有していれば、コネクタをプリント基板に対してより安定に固定することができる。   Furthermore, if the fixing member has a pair of legs, the connector can be more stably fixed to the printed circuit board.

以下に本発明の各種実施の形態について図面を参照して詳細に説明する。   Hereinafter, various embodiments of the present invention will be described in detail with reference to the drawings.

図1は、本発明の第一実施形態に係る基板コネクタ1の外観を現す斜視図であり、図2(a)はプリント基板2にハウジング14を組み付けた状態の基板コネクタ1の上面図、図2(b)は側面図、図2(c)は正面図である。図3(a)は、ハウジング14をプリント基板2に固定する固定部材(スナップフィット端子28)の展開図であり、図3(b)は側面図である。以下、基板コネクタ1の相手側コネクタと嵌合する方向を前方側とし、その反対方向を後方側として説明する。また、固定部材の脚部は、プリント基板2の表側から裏側に向けて貫通して形成された貫通孔に挿入されるものとする。そのため、プリント基板2の挿入方向手前側を基板の表側と、挿入方向奥側を基板の裏側と称することがある。   FIG. 1 is a perspective view showing an appearance of a board connector 1 according to the first embodiment of the present invention. FIG. 2A is a top view of the board connector 1 in a state where a housing 14 is assembled to the printed board 2. 2 (b) is a side view and FIG. 2 (c) is a front view. 3A is a development view of a fixing member (snap-fit terminal 28) that fixes the housing 14 to the printed circuit board 2, and FIG. 3B is a side view. Hereinafter, a direction in which the board connector 1 is mated with the mating connector is referred to as a front side, and the opposite direction is referred to as a rear side. In addition, the leg portion of the fixing member is inserted into a through hole formed so as to penetrate from the front side to the back side of the printed circuit board 2. Therefore, the front side of the printed board 2 in the insertion direction may be referred to as the front side of the board, and the back side in the insertion direction may be referred to as the back side of the board.

図1に示すように、ハウジング14が取り付けられるプリント基板2は、導電性のプリント配線12が印刷あるいはメッキ等により形成され、その表面に絶縁性の保護フィルム12fが被着されて、電子部品やIC(集積回路)等が実装されることで回路が形成されている。このプリント基板2の端縁の所定の部位には、ハウジング14が嵌入されるハウジング用切り欠き16が形成されている。このハウジング用切り欠き16の周辺には、基板コネクタ1の内導体端子18が接続される信号配線パターン12sと、外導体端子20が接続されるグランド配線パターン12gとが形成されている。ハウジング用切り欠き16の後方側には、内導体端子18の基板接続片18aや外導体端子20の基板接続片20aを接続するために保護フィルム12fが部分的に取り除かれて信号配線パターン12sとグランド配線パターン12gが露呈した接続タブ22s、22gが形成されている。さらに、このハウジング用切り欠き16の両側には、プリント基板2の表側から裏側に向けて貫通する貫通孔24が形成されている。   As shown in FIG. 1, a printed circuit board 2 to which a housing 14 is attached has a conductive printed wiring 12 formed by printing or plating, and an insulating protective film 12f is attached to the surface of the printed circuit board 2 so that an electronic component or A circuit is formed by mounting an IC (integrated circuit) or the like. A housing notch 16 into which the housing 14 is fitted is formed at a predetermined portion of the edge of the printed circuit board 2. A signal wiring pattern 12 s to which the inner conductor terminal 18 of the board connector 1 is connected and a ground wiring pattern 12 g to which the outer conductor terminal 20 is connected are formed around the housing notch 16. On the rear side of the housing notch 16, the protective film 12f is partially removed to connect the board connecting piece 18a of the inner conductor terminal 18 and the board connecting piece 20a of the outer conductor terminal 20, and the signal wiring pattern 12s. Connection tabs 22s and 22g, which expose the ground wiring pattern 12g, are formed. Further, on both sides of the housing cutout 16, through-holes 24 penetrating from the front side to the back side of the printed circuit board 2 are formed.

図1に示した基板コネクタ1は、内導体端子18と、この内導体端子18の外周を覆ってシールドする外導体端子20と、この内導体端子18と外導体端子20との間に介設された誘電体26とがハウジング14に収容されている。このハウジング14の両側面14a、14aには、ハウジング14をプリント基板2に固定する固定部材(スナップフィット端子28)を保持する取付部30が突設されている。なお、この取付部30は、合成樹脂材料の射出成形などによりハウジング14と一体的に形成されている。   The board connector 1 shown in FIG. 1 includes an inner conductor terminal 18, an outer conductor terminal 20 that covers and shields the outer periphery of the inner conductor terminal 18, and is interposed between the inner conductor terminal 18 and the outer conductor terminal 20. The dielectric 26 is accommodated in the housing 14. On both side surfaces 14 a and 14 a of the housing 14, mounting portions 30 that hold a fixing member (snap-fit terminal 28) that fixes the housing 14 to the printed circuit board 2 are projected. The attachment portion 30 is integrally formed with the housing 14 by injection molding of a synthetic resin material.

図1および図2に示すように、基板コネクタ1のハウジング両側面14a、14aに突設された取付部30には、取付部30の上面から下面まで貫通する圧入孔32が形成されている。図2(b)に示すように、この圧入孔32は、取付部上面の入口側32aはスナップフィット端子28の本体部34の幅と略同じか若干狭い幅に形成されており、途中部位で幅が狭められて取付部下面の出口側32bはスナップフィット端子28の対からなる脚部36、36の外側面間と略同じ幅に形成されており、脚部36、36が丁度通り抜けられるようになっている。   As shown in FIG. 1 and FIG. 2, a press-fit hole 32 that penetrates from the upper surface to the lower surface of the mounting portion 30 is formed in the mounting portion 30 that protrudes from the housing side surfaces 14 a and 14 a of the board connector 1. As shown in FIG. 2B, the press-fitting hole 32 has an inlet side 32a on the top surface of the mounting portion formed to have a width substantially the same as or slightly narrower than the width of the main body portion 34 of the snap-fit terminal 28. The outlet side 32b on the lower surface of the mounting portion is formed to have a width substantially the same as that between the outer surfaces of the leg portions 36, 36 comprising the pair of snap-fit terminals 28, so that the leg portions 36, 36 can pass through. It has become.

このハウジング14をプリント基板2に固定する固定部材は、略方形の本体部34の下辺両端からプリント基板2側に向けて弾性を有する棒状の脚部36が延設されたスナップフィット端子28である。このハウジング14をプリント基板2に固定するスナップフィット端子28は、金属の板材をプレス加工により打ち抜いて形成される。   The fixing member for fixing the housing 14 to the printed circuit board 2 is a snap-fit terminal 28 in which a bar-shaped leg portion 36 having elasticity extends from both ends of the lower side of the substantially rectangular main body 34 toward the printed circuit board 2 side. . The snap-fit terminal 28 for fixing the housing 14 to the printed circuit board 2 is formed by punching a metal plate material by pressing.

図3(a)はスナップフィット端子28を示す展開図であり、図3(b)は、側面図である。図3(a)に示すように、スナップフィット端子28の略方形の本体部34の下辺両端からプリント基板2側に向けて弾性を有する棒状の脚部36が延設されている。この対からなる脚部36の先端には、脚部36が挿入されるプリント基板2の貫通孔24の挿入方向奥側の開口縁24aに引っ掛かって係止する係止部38が張出し形成されている。   FIG. 3A is a development view showing the snap-fit terminal 28, and FIG. 3B is a side view. As shown in FIG. 3A, a rod-like leg portion 36 having elasticity extends from both ends of the lower side of the substantially rectangular main body portion 34 of the snap fit terminal 28 toward the printed circuit board 2 side. At the tip of the pair of leg portions 36, a locking portion 38 is formed so as to be hooked and locked to the opening edge 24a on the back side in the insertion direction of the through hole 24 of the printed board 2 into which the leg portion 36 is inserted. Yes.

さらに、この係止部38には、スナップフィット端子28をプリント基板2に対して強固に固定するために、階段状の複数の突起40が形成されている。階段状の複数の突起40の大きさや形状は特に限定されず、プリント基板2の厚さや貫通孔24の大きさに合わせて適宜変更することができる。この突起40は、金属の板金をプレス加工により打ち抜いてスナップフィット端子を形成するときに同時に形成しても良い。また、突起40は、スナップフィット端子を形成した後、切削などの方法により形成することもできる。   Furthermore, a plurality of stepped protrusions 40 are formed on the locking portion 38 in order to firmly fix the snap fit terminal 28 to the printed circuit board 2. The size and shape of the plurality of stepped protrusions 40 are not particularly limited, and can be appropriately changed according to the thickness of the printed circuit board 2 and the size of the through hole 24. The protrusions 40 may be formed simultaneously when a metal sheet metal is punched out by press working to form a snap fit terminal. Further, the protrusion 40 can be formed by a method such as cutting after forming the snap-fit terminal.

また、スナップフィット端子28の本体部34の側縁には、本体部34下端の両側から滑らかに張出し形成された圧入片42が設けられており、この圧入片42の上端は角張って形成されている。図2に示すように、本体部34の下端面と、取付部30の圧入孔32の入り口側32aと出口側32bとの境目である角部32c上面とが当接する位置までスナップフィット端子28を圧入孔32に圧入すると、圧入片42上端部が取付部30の圧入孔32内壁に食い込みスナップフィット端子28が取付部30に固定される(図2参照)。   Further, a press-fit piece 42 is formed on the side edge of the main body portion 34 of the snap-fit terminal 28 so as to smoothly project from both sides of the lower end of the main body portion 34, and the upper end of the press-fit piece 42 is formed to be angular. Yes. As shown in FIG. 2, the snap-fit terminal 28 is moved to a position where the lower end surface of the main body 34 and the upper surface of the corner portion 32 c that is the boundary between the inlet side 32 a and the outlet side 32 b of the press-fitting hole 32 of the mounting portion 30 abut. When press-fitting into the press-fitting hole 32, the upper end portion of the press-fitting piece 42 bites into the inner wall of the press-fitting hole 32 of the mounting part 30, and the snap-fit terminal 28 is fixed to the mounting part 30 (see FIG. 2).

このようにしてスナップフィット端子28が取り付けられたハウジング14を、プリント基板2のハウジング用切り欠き16に合わせて配置して、スナップフィット端子28の脚部36をプリント基板2の貫通孔24に挿入する。図4は、スナップフィット端子28が貫通孔24に係止される過程をスナップフィット端子28の脚部を拡大して示した図である。   The housing 14 to which the snap fit terminal 28 is attached in this manner is arranged in alignment with the housing notch 16 of the printed circuit board 2, and the leg portion 36 of the snap fit terminal 28 is inserted into the through hole 24 of the printed circuit board 2. To do. FIG. 4 is an enlarged view of the leg portion of the snap fit terminal 28 in the process in which the snap fit terminal 28 is locked in the through hole 24.

図4(a)に示すように、スナップフィット端子28の対からなる脚部36、36に対応して、プリント基板2にも対からなる貫通孔24、24が形成されている。この各貫通孔24は、脚部36の先端に形成された係止部38の最も太い部分が丁度通り抜けられる程度の直径Aを有している。そして対からなる貫通孔24、24の間の距離Bは、対からなる脚部36、36同士の間隔Cより若干狭く形成されており、の貫通孔24、24の間の距離Bに貫通孔直径Aを足した距離、すなわち2つの貫通孔の内周縁の最も離れた距離Dは、対からなる脚部36、36の係止部38、38の最も張出しした部位での外側面間隔Eよりも小さく形成されている。   As shown in FIG. 4A, corresponding through holes 24, 24 are also formed in the printed circuit board 2 corresponding to the leg portions 36, 36 including the pair of snap fit terminals 28. Each through-hole 24 has a diameter A that allows the thickest portion of the locking portion 38 formed at the tip of the leg portion 36 to pass through. The distance B between the pair of through holes 24, 24 is formed slightly narrower than the distance C between the pair of leg portions 36, 36, and the distance B between the through holes 24, 24 is equal to the distance B. The distance obtained by adding the diameter A, that is, the most distant distance D between the inner peripheries of the two through holes is based on the outer surface interval E at the most protruding portion of the locking portions 38, 38 of the paired leg portions 36, 36. Is also formed small.

図4(b)に示すように、脚部36の先端を貫通孔24に挿入する際には、挿入斜面38aが貫通孔24の挿入方向手前側の端縁に当接され、脚部36を挿入するに従い、挿入斜面38aを下側から上側へ貫通孔24の端縁が摺動する。これに伴って、対をなす脚部36、36は、内側方向へ弾性変形する。   As shown in FIG. 4B, when the tip of the leg portion 36 is inserted into the through hole 24, the insertion slope 38a is brought into contact with the end edge of the through hole 24 in the insertion direction, so that the leg portion 36 is As inserted, the edge of the through-hole 24 slides from the lower side to the upper side of the insertion slope 38a. Accordingly, the paired leg portions 36 and 36 are elastically deformed in the inward direction.

次いで、図4(c)は、スナップフィット端子28の脚部36が貫通孔24に正規位置まで挿入された状態を示している。このように、係止部38の最も張出している部位38bが貫通孔24を通過すると、対からなる脚部36は、自らの弾性による復元力により弾性変形前の状態に復帰する。そして、係止部38が開口縁24aに引っ掛かって係止する。   Next, FIG. 4C shows a state in which the leg portion 36 of the snap fit terminal 28 is inserted into the through hole 24 to the normal position. Thus, when the most protruding portion 38b of the locking portion 38 passes through the through hole 24, the pair of leg portions 36 returns to the state before elastic deformation by the restoring force due to their own elasticity. And the latching | locking part 38 is hooked on the opening edge 24a, and latches.

そうすると、図2に示すように、スナップフィット端子28が埋設された取付部30の下面がプリント基板2の表面に当接し、この取付部30を介してハウジング14がプリント基板2のハウジング用切り欠き16に固定されてハウジング14がプリント基板2に仮固定される。このとき、階段状の複数の突起40が係止部38に形成されているので、スナップフィット端子28がずれることなく、ハウジング14をプリント基板2により強固に固定することができる。これにより、内導体端子18の基板接続片18aや外導体端子20の基板接続片20aおよびスナップフィット端子28の脚部36先端をプリント基板2へ半田付けしやすくなる。   Then, as shown in FIG. 2, the lower surface of the mounting portion 30 in which the snap-fit terminal 28 is embedded comes into contact with the surface of the printed circuit board 2, and the housing 14 is notched for the housing of the printed circuit board 2 through the mounting portion 30. The housing 14 is temporarily fixed to the printed circuit board 2. At this time, since the plurality of stepped protrusions 40 are formed on the locking portion 38, the housing 14 can be firmly fixed to the printed circuit board 2 without the snap-fit terminal 28 being displaced. As a result, the board connecting piece 18 a of the inner conductor terminal 18, the board connecting piece 20 a of the outer conductor terminal 20, and the tip of the leg portion 36 of the snap fit terminal 28 can be easily soldered to the printed board 2.

このようにして、ハウジング14をプリント基板2に仮固定した後、内導体端子18の基板接続片18aをプリント基板2の信号配線パターン12sの接続タブ22sに、外導体端子20の基板接続片20aをプリント基板2のグランド配線パターン12gの接続タブ22gに半田付けして接続する。そして、プリント基板2を裏返し、スナップフィット端子28の脚部36先端の半田付けを行う。   After the housing 14 is temporarily fixed to the printed board 2 in this manner, the board connecting piece 18a of the inner conductor terminal 18 is connected to the connecting tab 22s of the signal wiring pattern 12s of the printed board 2, and the board connecting piece 20a of the outer conductor terminal 20 is connected. Is connected to the connection tab 22g of the ground wiring pattern 12g of the printed circuit board 2 by soldering. Then, the printed circuit board 2 is turned over, and the tips of the leg portions 36 of the snap-fit terminals 28 are soldered.

図5は、このようにして脚部36先端をプリント基板2へ半田付けした状態の取付部30とスナップフィット端子28を示すものであって、図5(a)は図2(a)のA1−A1断面図であり、図5(b)は図5(a)のA2−A2断面図である。スナップフィット端子28の脚部36先端側は、プリント基板2の貫通孔24の挿入方向奥側の開口縁24aに突出しており、半田44により固定されている。   FIG. 5 shows the mounting portion 30 and the snap-fit terminal 28 in a state where the tips of the leg portions 36 are soldered to the printed circuit board 2 in this way, and FIG. 5 (a) is an A1 in FIG. 2 (a). -A1 sectional drawing, FIG.5 (b) is A2-A2 sectional drawing of Fig.5 (a). The front end side of the leg portion 36 of the snap-fit terminal 28 protrudes to the opening edge 24 a on the back side in the insertion direction of the through hole 24 of the printed circuit board 2 and is fixed by the solder 44.

上述したように、ハウジング14は、階段状の複数の突起40が形成された係止部38が設けられたスナップフィット端子28により、取付部30を介しプリント基板2に対して矢印x方向にも矢印y方向にも堅固に固定される。これにより、基板コネクタ1に相手側コネクタとの嵌合方向xと異なる方向に荷重がかかっても、ハウジング14はプリント基板2に安定して固定され、内導体端子18の基板接続片18aとプリント基板2の信号配線パターン12sの接続タブ22sとの間、および、外導体端子20の基板接続端子20aとプリント基板2のグランド配線パターン12gとの間の半田44にひびなどが入って接続が不安定になるようなことがない。   As described above, the housing 14 is also moved in the direction of the arrow x with respect to the printed circuit board 2 via the mounting portion 30 by the snap-fit terminal 28 provided with the locking portion 38 in which the plurality of step-like projections 40 are formed. It is also firmly fixed in the direction of the arrow y. As a result, even if a load is applied to the board connector 1 in a direction different from the fitting direction x with the mating connector, the housing 14 is stably fixed to the printed board 2, and the printed board connection piece 18 a of the inner conductor terminal 18 and the printed board 2 are printed. The connection between the connection tabs 22s of the signal wiring pattern 12s of the substrate 2 and the solder 44 between the substrate connection terminal 20a of the outer conductor terminal 20 and the ground wiring pattern 12g of the printed circuit board 2 is cracked to cause a connection failure. There is no such thing as stability.

尚、この基板コネクタ1の内導体端子18、外導体端子20、誘電体2およびハウジング14などは、従来一般に用いられているものが適用できるので、以下に簡単に説明する。   In addition, since what is conventionally used can be applied to the inner conductor terminal 18, the outer conductor terminal 20, the dielectric 2 and the housing 14 of the board connector 1, they will be briefly described below.

図1および図2に示すように、内導体端子18は、導電性板材を打ち抜き加工して形成され、前方の端部には図示しない相手側端子と嵌合して電気的に接続する嵌合部18bが設けられ、後方の端部にはプリント基板の接続用タブ22sに接続される基板接続片18aが設けられている。この嵌合部18bに相手側コネクタの内導体端子が接続されることにより、この相手側コネクタに接続された同軸ケーブルの信号導体がプリント基板2の信号配線パターン12sと導通する。   As shown in FIGS. 1 and 2, the inner conductor terminal 18 is formed by punching a conductive plate material, and is fitted to the front end to fit and electrically connect to a mating terminal (not shown). A portion 18b is provided, and a board connection piece 18a connected to the connection tab 22s of the printed board is provided at the rear end. By connecting the inner conductor terminal of the mating connector to the fitting portion 18b, the signal conductor of the coaxial cable connected to the mating connector is electrically connected to the signal wiring pattern 12s of the printed board 2.

内導体端子18が収容される誘電体26は、所定の誘電率を有する樹脂製の絶縁性材料で成形されており、内導体端子18と外導体端子20との間に組付けられて、これらの間を絶縁状態にする。この誘電体26は、内導体端子18の嵌合部と基板接続片18aが誘電体26から突出するように形成されている。   The dielectric body 26 in which the inner conductor terminal 18 is accommodated is formed of a resin insulating material having a predetermined dielectric constant, and is assembled between the inner conductor terminal 18 and the outer conductor terminal 20. Between the two. The dielectric 26 is formed so that the fitting portion of the inner conductor terminal 18 and the board connection piece 18 a protrude from the dielectric 26.

外導体端子20は、導電性板材を型抜きした後、プレス等による折り曲げ加工によって円筒状に形成される。外導体端子20の前方端部には図示しない相手側端子と嵌合して電気的に接続するシールド嵌合部20bが設けられ、この円筒状のシールド嵌合部20bの中心には内導体端子18の嵌合部18bが配置されている。このシールド嵌合部からは誘電体22を収容する収容部が縁設されており、この後端には、下側に向けてプリント基板2の接続タブ22gに接続される基板接続片20a、20aが設けられている。この外導体端子20に相手側コネクタの外導体端子20が嵌合接続されると、この相手側コネクタに接続された同軸ケーブルのシールド導体がプリント基板2のグランド配線パターン12gと導通する。   The outer conductor terminal 20 is formed in a cylindrical shape by punching a conductive plate and then bending it with a press or the like. The front end portion of the outer conductor terminal 20 is provided with a shield fitting portion 20b that is fitted and electrically connected to a mating terminal (not shown), and the inner conductor terminal is provided at the center of the cylindrical shield fitting portion 20b. Eighteen fitting portions 18b are arranged. An accommodation portion for accommodating the dielectric 22 is provided from the shield fitting portion, and board connection pieces 20a and 20a connected to the connection tabs 22g of the printed circuit board 2 face downward at the rear end. Is provided. When the outer conductor terminal 20 of the mating connector is fitted and connected to the outer conductor terminal 20, the shield conductor of the coaxial cable connected to the mating connector is electrically connected to the ground wiring pattern 12g of the printed board 2.

ハウジング14は、絶縁性の樹脂により一体的に成形されており、内導体端子18を誘電体26の内部に保持しこの誘電体26を外導体端子20が収容してなるコネクタ端子を収容固定するようになっている。ハウジング14の後部には、前後方向に開口する端子収容室14bが貫通形成されており、後方の開口面から外導体端子20を挿入可能となっている。ハウジング14の前方面には相手側コネクタとの嵌合をガイドするように前面が開口されたフード部14cが設けられている。   The housing 14 is integrally formed of an insulating resin, holds the inner conductor terminal 18 inside the dielectric 26, and accommodates and fixes the connector terminal formed by accommodating the dielectric 26 in the outer conductor terminal 20. It is like that. A terminal accommodating chamber 14 b that opens in the front-rear direction is formed through the rear portion of the housing 14 so that the outer conductor terminal 20 can be inserted from the rear opening surface. The front surface of the housing 14 is provided with a hood portion 14c whose front surface is opened so as to guide the fitting with the mating connector.

以上、本発明の実施の形態について詳細に説明したが、本発明は上記実施の形態に何ら限定されるものではなく、本発明の要旨を逸脱しない範囲で種々の改変が可能である。例えば、上記実施形態において、固定部材(スナップフィット端子)は対からなる脚部を備えているが、脚部の数はこれに限られるものでなく、1本でも良いし、3本以上備えていても良い。また、固定部材が取り付けられる部位はハウジングの両側面に限られるものではない。   Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, in the above embodiment, the fixing member (snap fit terminal) includes a pair of leg portions, but the number of leg portions is not limited to this, and may be one, or three or more. May be. Moreover, the site | part to which a fixing member is attached is not restricted to the both sides | surfaces of a housing.

本発明の第一実施形態に係る基板コネクタの外観を示す斜視図である。It is a perspective view showing the appearance of the substrate connector concerning a first embodiment of the present invention. 図2(a)はハウジングをプリント基板に仮固定した状態を示す基板コネクタの上面図、図2(b)は側面図、図2(c)は正面図である。2A is a top view of the board connector showing a state where the housing is temporarily fixed to the printed board, FIG. 2B is a side view, and FIG. 2C is a front view. 図1に示すハウジングをプリント基板に固定するスナップフィット端子を示す(a)展開図と(b)側面図である。It is the (a) expanded view and (b) side view which show the snap fit terminal which fixes the housing shown in FIG. 1 to a printed circuit board. スナップフィット端子の脚部が貫通孔に係止される過程を拡大して示した図である。It is the figure which expanded and showed the process in which the leg part of a snap fit terminal is latched by a through-hole. 脚部先端をプリント基板へ半田付けした状態の取付部とスナップフィット端子を示す図である。It is a figure which shows the attaching part and snap fit terminal of the state which soldered the leg part tip to the printed circuit board. 従来の基板コネクタを表す分解斜視図である。It is a disassembled perspective view showing the conventional board | substrate connector. 基板コネクタの固定部材を仮固定した状態を示す図である。It is a figure which shows the state which fixed temporarily the fixing member of the board | substrate connector.

符号の説明Explanation of symbols

1 基板コネクタ
2 プリント基板
12 プリント配線
12s 信号配線パターン
12g グランド配線パターン
14 ハウジング
16 ハウジング用切り欠き
18 内導体端子
20 外導体端子
22s 接続タブ
22g 接続タブ
24 貫通孔
24a 開口縁(挿入方向奥側)
26 誘電体
28 固定部材(スナップフィット端子)
30 取付部
34 本体部
36 脚部
38 係止部
40 突起
DESCRIPTION OF SYMBOLS 1 Board connector 2 Printed board 12 Printed wiring 12s Signal wiring pattern 12g Ground wiring pattern 14 Housing 16 Notch for housing 18 Inner conductor terminal 20 Outer conductor terminal 22s Connection tab 22g Connection tab 24 Through-hole 24a Opening edge (back side in insertion direction)
26 Dielectric 28 Fixing member (Snap-fit terminal)
30 Attaching part 34 Body part 36 Leg part 38 Locking part 40 Projection

Claims (3)

基板上に形成されたプリント配線に接続される端子を収容するハウジングと、このハウジングを前記基板に固定する固定部材とを備える基板コネクタにおいて、
前記固定部材は、前記基板に形成された貫通孔に挿通される脚部を備え、該脚部の先端側には、前記貫通孔に正規位置まで挿入された状態において前記貫通孔の挿入方向奥側の開口縁に引っ掛かって係止する係止部が設けられ、
前記係止部には、前記貫通孔の前記開口縁に多段階的に係合される階段状の複数の突起が形成されていることを特徴とする基板コネクタ。
In a board connector comprising a housing for accommodating a terminal connected to a printed wiring formed on a board, and a fixing member for fixing the housing to the board,
The fixing member includes a leg portion that is inserted into a through hole formed in the substrate, and the distal end side of the leg portion has a depth in the insertion direction of the through hole in a state of being inserted into the through hole to a normal position. A locking part is provided to be hooked and locked to the opening edge on the side,
The board connector according to claim 1, wherein a plurality of stepped protrusions that are engaged with the opening edge of the through hole in a multistage manner are formed in the locking portion.
前記係止部は前記脚部から外方向に張出し形成され、前記貫通孔の前記開口縁に多段階的に係合される階段状の複数の前記突起は、その係止部の外側面に形成されていることを特徴とする請求項1に記載の基板コネクタ。   The locking portion is formed to project outward from the leg portion, and a plurality of stepped protrusions that are engaged with the opening edge of the through hole in a multi-step manner are formed on the outer surface of the locking portion. The board connector according to claim 1, wherein the board connector is formed. 前記固定部材は前記脚部を対で有しており、前記基板に形成されている対の貫通孔を備え、それぞれの脚部が挿通されていることを特徴とする請求項1または2に記載の基板コネクタ。   The said fixing member has the said leg part in a pair, It is provided with the pair of through-hole currently formed in the said board | substrate, Each leg part is penetrated, The Claim 1 or 2 characterized by the above-mentioned. Board connector.
JP2008102680A 2008-04-10 2008-04-10 Board connector Pending JP2009252696A (en)

Priority Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7896693B2 (en) 2008-01-17 2011-03-01 Denso Corporation Retaining member electric component and electric device
US8514580B2 (en) 2009-12-22 2013-08-20 Denso Corporation Electronic device having auxiliary member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7896693B2 (en) 2008-01-17 2011-03-01 Denso Corporation Retaining member electric component and electric device
US8105109B2 (en) 2008-01-17 2012-01-31 Denso Corporation Retaining member, electric component and electric device
US8514580B2 (en) 2009-12-22 2013-08-20 Denso Corporation Electronic device having auxiliary member

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