JP3874367B2 - Board connector - Google Patents

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JP3874367B2
JP3874367B2 JP2001360078A JP2001360078A JP3874367B2 JP 3874367 B2 JP3874367 B2 JP 3874367B2 JP 2001360078 A JP2001360078 A JP 2001360078A JP 2001360078 A JP2001360078 A JP 2001360078A JP 3874367 B2 JP3874367 B2 JP 3874367B2
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terminal
housing
locking projection
board connector
locking
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JP2003163049A (en
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修 見義
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SMK Corp
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SMK Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、電線を回路基板に接続するための基板用コネクタに関するものである。さらに詳しくは、端子挿入孔が形成されたハウジングと、電線を圧着保持して端子挿入孔に挿入保持される端子とを具備し、端子の半田付け足を回路基板への半田付け部とする基板用コネクタに関するものである。
【0002】
【従来の技術】
従来の基板用コネクタ51は、例えば図17から図21までに示すように構成されていた。
すなわち、ハウジング52に2個の端子挿入孔53、53を形成し、各端子挿入孔53に、電線54の端末に圧着保持された端子55を挿入し、端子55の先端部56の一側に突設された係止突起57をハウジングランス(可撓係止腕)58の係止部59に係止して抜け止めとする。この端子55の端子挿入孔53への挿入において、挿入時には係止突起57によって係止部59が2点鎖線で示すように外側へ弾性変形し、挿入完了時には係止部59が実線で示す元の位置に戻って抜け止めとなる。
【0003】
端子55の被覆圧着バレル60と芯線圧着バレル61を連結する連結片66から半田付け足63を突設し、この半田付け足63をハウジング52から突出して回路基板64の貫通孔65を貫通させ、半田(図示省略)によって回路基板64の導体部分に接続固定する。
66は、端子55の連結片62から半田付け足63と反対側へ突設されて、先端を折り曲げて端子挿入孔53の内壁面に当接させる横振れ規制片である。
67は、端子55の先端部56から係止突起57と反対側へ突設されて、先端を折り曲げて端子挿入孔53の内壁面に当接させる横振れ規制片である。68は係止突起57を挿入して案内する係止突起挿入溝である。
【0004】
【発明が解決しようとする課題】
しかしながら、図17〜図21に示した従来の基板用コネクタ51では、ハウジングランス58の係止部59が端子挿入口と反対側(図17では上側)に形成されていたので、抜け止め用の係止突起57を形成するために、端子55に先端部56を設ける必要があり、小型化が難しいという問題点があった。
【0005】
また、端子55の連結片62を短くして小型化を図ろうとした場合、図17に示すように回路基板64の端面と基板用コネクタ51の端面との間に長さS(例えばS=0.6mm)のスペースを設ける必要があるため、回路基板64上の省スペース化が難しいという問題点があった。
すなわち、回路基板64の厚さをD、回路基板64の端面から貫通孔65の中心線までの長さをLとすると、強度上の観点からLをD(例えばD=0.8mm)の2倍以上(例えば1.6mm)にする必要があるからである。
【0006】
また、端子55が横方向(図18〜図20では左右方向)に振れるのを防止するために、端子55に横振れ規制片66、67を形成しなければならないので、端子55の構造が複雑になるという問題点があった。
【0007】
本発明は上述の問題点に鑑みてなされたもので、小型化、基板上の省スペー
ス化を図ることができ、横振れ防止のための端子構造の簡単化を図ることができる基板用コネクタを提供することを目的とするものである。
【0008】
【課題を解決するための手段】
請求項1記載の発明は、端子挿入孔(3)が形成されたハウジング(2)と、電線(54)を圧着保持して端子挿入孔(3)に挿入保持される端子(5)とを具備し、端子(5)の半田付け足(13)を回路基板(64)への半田付け部とする基板用コネクタであって、ハウジング(2)の側壁に、外側へ弾性変形可能な係止部(9)が端子挿入口側に位置するハウジングランス(8)を形成し、端子(5)に、端子挿入孔(3)への挿入時に係止部(9)を外側へ弾性変形させ、挿入完了時に係止部(9)に係止して抜け止めとなる係止突起(7)を形成してなることを特徴とする。
【0009】
このような構成において、ハウジング(2)の側壁に形成されたハウジングランス(8)の係止部(9)が端子挿入口側に位置し、端子(5)に形成された係止突起(7)が、端子挿入孔(3)への挿入時に係止部(9)を外側へ弾性変形し、挿入完了時に係止部(9)に係止して抜け止めとなるので、この係止突起(7)を端子(5)の中間部(例えば連結片)に形成することができる。このため、図17〜図21に示した従来例のような端子55の先端部56が不要となり、基板用コネクタの小型化を図ることができる。
【0010】
請求項2の発明は、請求項1記載の発明において、回路基板(64)上の省スペスース化を図るために、端子(5)は、電線(54)の軸線方向に沿って順次形成された被覆圧着バレル(10)、連結片(12)及び芯線圧着バレル(11)を具備し、半田付け足(13)を電線(54)の軸線方向と略垂直な方向に連結片(12)から突出して形成し、係止突起(7)を半田付け足(13)の反対側へ連結片(12)から突出して形成する。
【0011】
請求項3記載の発明は、請求項1又は2の発明において、横振れ防止のための端子構造の簡単化を図るために、ハウジング(2)に、端子(5)の端子挿入孔(3)への挿入時には係止突起(7)を案内し、挿入完了時には係止突起(7)の横振れを規制する係止突起挿入溝(18)を形成し、この係止突起挿入溝(18)内に係止部(9)を形成する。
【0012】
【発明の実施の形態】
以下、本発明による基板用コネクタの一実施形態例を、図1から図16までを用いて説明する。
図1から図5において、1は基板用コネクタで、この基板用コネクタ1は、図17〜図21に示した基板用コネクタ51と同様に、電線54を回路基板64に接続するためのコネクタである。
基板用コネクタ1は、ハウジング2と、このハウジング2の端子挿入孔3、3に挿入保持された端子5、5とで構成されている。
【0013】
ハウジング2は絶縁性を有する樹脂材料によって形成されている。このハウジング2には、図6〜図11に示すように前後方向(図6では上下方向、図7では紙面に垂直な前後方向)に貫通する端子挿入孔3、3が所定間隔(例えば1.5mm間隔)で形成されている。
【0014】
ハウジング2の天壁(図7では上側の側壁)には、上側から見た形状がU字形の孔4,4が形成され、このU字形孔4,4によって舌片状のハウジングランス(可撓係止腕)8,8が形成されている。
【0015】
ハウジングランス8の先端部は、端子挿入口側(図6では下側)に位置し、外側(図7では上側)へ弾性変形可能に形成されている。
ハウジングランス8の底面には、後述する係止突起7を挿入して案内するための係止突起挿入溝18が形成され、この係止突起挿入溝18内の端子挿入口側には、図10,図11に示すような係止部9が形成されている。
【0016】
ハウジング2の天壁のうち、U字形孔4,4で区切られた前側部には、係止突起挿入溝19,19が形成されている。この係止突起挿入溝19は、前面側が端子挿入口側に開口し、背面側がU字形孔4による隙間を介して係止突起挿入溝18に連通している。
【0017】
ハウジング2の底壁(図17では下側の側壁)には、端子挿入口側に開口し上下に貫通したスリット20,20が形成されている。このスリット20は、後述する半田付け足13を挿入、案内、係合するためのものである。
【0018】
電線54に固着される前の端子5は、弾性を有する金属製の板材を図12に示すような形状に打ち抜き、切断線SHで切断することによって形成される。
そして、折り曲げ加工で被覆圧着バレル10と芯線圧着バレル11を電線54の被覆と芯線に圧着固定することによって、電線54の端末に端子5が固着される。すなわち、被覆圧着バレル10、芯線圧着バレル11は、電線54が圧着される前には図15,図14に示すように断面が略V字形状に形成され、電線54が圧着された後には図1〜図4に示すように被覆、芯線を包み込むように圧着する。
【0019】
端子5の被覆圧着バレル10,芯線圧着バレル11は、圧着する電線54の軸線方向(図12では上下方向)に沿って形成され、被覆圧着バレル10と芯線圧着バレル11の間には連結片12が形成されている。
連結片12には、電線54の軸線方向と略垂直な方向(図12では左方向)に半田付け足13が突設されるとともに、半田付け足13の反対側(図12では右側)に係止突起7が突設されている。
図12において、30はキャリア、31は送り孔である。
【0020】
上述のように電線54の端末に固着された端子5を、図1に矢印で示すようにハウジング2の対応する端子挿入孔3に挿入する。この端子5の端子挿入孔3への挿入において、スリット20に挿入、案内された半田付け足13がスリット20の閉塞端に係合することによって、背面側(図1では上側)への動きが規制され、係止突起挿入溝19、18に挿入、案内された係止突起7がハウジングランス8の係止部9に係止することによって、前面側(図1では下側)への抜け止めとなる。
【0021】
上述の端子5の端子挿入孔3への挿入において、挿入時には係止突起7によってハウジングランス8の係止部9が2点鎖線で示すように外側へ弾性変形し、挿入完了時にはハウジングランス8の係止部9が実線で示す位置に戻っ係止突起7に係止する。このとき、ハウジングランス8の係止部9が前面側(端子挿入口側)に形成されているので、ハウジングランス8のバネ長を確保することができる。
また半田付け足13がスリット20に係合されとともに係止突起7が係止突起挿入溝18に挿入されて横方向(図2〜図4では左右方向)への動きが規制されているので、端子5の横振れを防止することができる。
【0022】
上述のように形成された基板用コネクタ1は、その半田付け足13を図1に示すように回路基板64の貫通孔65を貫通させ、半田(図示省略)によって回路基板64の導体部分に接続固定される。
【0023】
本発明による基板用コネクタ1では、ハウジングランス8の係止部9が端子挿入口側に位置し、係止部9に係止する係止突起7を連結片12に形成しているので、連結片12の長さを適宜に形成することによって、基板用コネクタ1の端面と回路基板64の端面を一致させて、回路基板64上の省スペース化を図ることができる。
すなわち、図1に示すように、LがDの2倍以上(例えば1.6mm)となる条件を満足するように、連結片12の長さを設定して基板用コネクタ1の端面と回路基板64の端面を一致させた場合、連結片12の長さは図17に示した従来例の連結片62より長くなるが、従来例のような先端部56が不要となるので、基板用コネクタ1の全長は従来例の基板用コネクタ51と同じかそれ以下にすることができる。
【0024】
また、連結片12の長さを図17の従来例の連結片62と同じにした場合、基板用コネクタ1の端面と回路基板64の端面との間に図17に示したような長さSのスペースを設ける必要はあるが、基板用コネクタ1自体の全長をさらに短くすることができる。
【0025】
前記実施形態例では、ハウジング2に2つの端子挿入孔3を形成し、各端子挿入孔3に端子5を挿入、係止した2極の場合について説明したが、本発明はこれに限るものでなく、ハウジング2に1つの端子挿入孔3を形成して端子5を挿入、係止した単極の場合や、ハウジング2に3つ以上の端子挿入孔3を形成し、各端子挿入孔3に端子5を挿入、係止した3極以上の場合についても利用することができる。
【0026】
前記実施形態例では、端子5の構造を複雑にすることなく横振れを防止するために、ハウジング2に、端子5の端子挿入孔3への挿入時には係止突起7を案内し、挿入完了時には係止突起7の横振れを規制する係止突起挿入溝18を形成し、この係止突起挿入溝18内に係止部9を形成した場合について説明したが、本発明はこれに限るものでなく、係止突起挿入溝18を省略し、端子5の連結片12に横振れ規制片を設けた場合についても利用することができる。
【0027】
前記実施形態例では、回路基板64上の省スペース化を図るために、半田付け足13の突出方向が電線54の軸線方向と垂直なライトアングルタイプの基板用コネクタ1について説明したが、本発明はこれに限るものでなく、半田付け足の突出方向が電線54の軸線方向と平行なストレートタイプの基板用コネクタについても利用することができる。
【0028】
【発明の効果】
請求項1記載の発明は、基板用コネクタにおいて、ハウジング(2)の側壁に形成するハウジングランス(8)の係止部(9)の位置を端子挿入口側とし、端子挿入孔3の係止突起(7)が、端子挿入孔(3)への挿入時に係止部(9)を外側へ弾性変形させ、挿入完了時に係止部(9)に係止して抜け止めとなる構成としたので、係止突起(7)を端子(5)の中間部(例えば連結片)に形成することができ、基板用コネクタの小型化を図ることができる。
【0029】
請求項2記載の発明は、請求項1記載の発明において、端子(5)が電線(54)の軸線方向に沿って順次形成された被覆圧着バレル(10)、連結片(12)及び芯線圧着バレル(11)を具備し、半田付け足(13)が電線(54)の軸線方向と略垂直な方向に連結片(12)から突出し、係止突起(7)が半田付け足(13)の反対側の連結片(12)から突出する構成(すなわちライトアングルタイプ)としたので、基板用コネクタの端面を回路基板(64)の端面と一致させて回路基板(64)上の省スペース化を図ることができる。
【0030】
請求項3記載の発明は、請求項1又は2記載の発明において、ハウジング(2)に、端子(5)の端子挿入孔(3)への挿入時には係止突起(7)を案内し、挿入完了時には係止突起(7)の横振れを規制する係止突起挿入溝(18)を形成し、この係止突起挿入溝(18)内に係止部(9)を形成する構成としたので、端子(5)の構造を複雑にすることなく端子(5)の横振れを防止することができる。
【図面の簡単な説明】
【図1】本発明による基板用コネクタの一実施形態例を示す図で、図中の基板用コネクタ1は図2のAーA線断面図を示す。
【図2】図1中の基板用コネクタ1を示す図で、一部を切り欠いて表示した平面図である。
【図3】図2の正面図である。
【図4】図3の背面図である。
【図5】図2の右側面図である。
【図6】図1中のハウジング2を示す平面図である。
【図7】図6の正面図である。
【図8】図7の背面図である。
【図9】図6の左側面図である。
【図10】 図6のA−A線断面図である。
【図11】ハウジングランス8の係止部9を示す部分斜視図である。
【図12】電線54に固着される前の、キャリア30に連結された端子5を示す平面図である。
【図13】図12において、切断線SHで切断された後のハウジング(2)の右側面図である。
【図14】図12のA−A線断面図である。
【図15】図12のB−B線端面図である。
【図16】図12のC−C線端面図である。
【図17】従来例を示す図で、図中の基板用コネクタ51は図18のA−A線断面図を示す。
【図18】図17中の基板用コネクタ51を示す図で、一部を切り欠いて表示した平面図である。
【図19】図18の正面図である。
【図20】図19の背面図である。
【図21】図18の右側面図である。
【符号の説明】
1…基板用コネクタ、 2…ハウジング、 3…端子挿入孔、 4…U字形孔、 5…端子、 7…係止突起、 8…ハウジングランス、 9…係止部、 10…被覆圧着バレル、 11…芯線圧着バレル、 12…連結片、 13…半田付け足、 18、19…係止突起挿入溝、 20…スリット、 54…電線、 64…回路基板。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a board connector for connecting an electric wire to a circuit board. More specifically, a board having a housing in which a terminal insertion hole is formed and a terminal that is held by crimping and holding an electric wire and is inserted and held in the terminal insertion hole, and a soldering foot of the terminal as a soldering portion to the circuit board It is related with the connector.
[0002]
[Prior art]
The conventional board connector 51 is configured, for example, as shown in FIGS.
That is, two terminal insertion holes 53, 53 are formed in the housing 52, and a terminal 55 held by crimping on the end of the electric wire 54 is inserted into each terminal insertion hole 53, and one end 56 of the terminal 55 is placed on one side. The protruding locking projection 57 is locked to a locking portion 59 of a housing lance (flexible locking arm) 58 to prevent it from coming off. When the terminal 55 is inserted into the terminal insertion hole 53, the locking projection 59 is elastically deformed outward as indicated by a two-dot chain line during insertion, and the locking portion 59 is indicated by a solid line when insertion is completed. It will return to the position of and will be retained.
[0003]
A soldering foot 63 protrudes from a connecting piece 66 that connects the coated crimping barrel 60 of the terminal 55 and the core wire crimping barrel 61, the soldering foot 63 protrudes from the housing 52, and penetrates the through hole 65 of the circuit board 64. It is connected and fixed to the conductor portion of the circuit board 64 by solder (not shown).
Reference numeral 66 denotes a lateral deflection regulating piece that protrudes from the connecting piece 62 of the terminal 55 to the opposite side of the soldering foot 63 and bends the tip to abut against the inner wall surface of the terminal insertion hole 53.
Reference numeral 67 denotes a lateral deflection regulating piece that protrudes from the distal end portion 56 of the terminal 55 to the side opposite to the locking projection 57 and that bends the distal end to abut against the inner wall surface of the terminal insertion hole 53. Reference numeral 68 denotes a locking projection insertion groove for inserting and guiding the locking projection 57.
[0004]
[Problems to be solved by the invention]
However, in the conventional board connector 51 shown in FIGS. 17 to 21, the locking portion 59 of the housing lance 58 is formed on the side opposite to the terminal insertion port (upper side in FIG. 17). In order to form the locking projection 57, it is necessary to provide the tip portion 56 on the terminal 55, and there is a problem that miniaturization is difficult.
[0005]
Further, when trying to reduce the size by shortening the connecting piece 62 of the terminal 55, a length S (for example, S = 0) between the end face of the circuit board 64 and the end face of the board connector 51 as shown in FIG. .6 mm), it is difficult to save space on the circuit board 64.
That is, if the thickness of the circuit board 64 is D and the length from the end surface of the circuit board 64 to the center line of the through hole 65 is L, L is 2 (for example, D = 0.8 mm) from the viewpoint of strength. It is because it is necessary to make it twice or more (for example, 1.6 mm).
[0006]
Further, in order to prevent the terminal 55 from swinging in the lateral direction (left and right in FIGS. 18 to 20), the lateral swing restricting pieces 66 and 67 must be formed on the terminal 55, so that the structure of the terminal 55 is complicated. There was a problem of becoming.
[0007]
The present invention has been made in view of the above-described problems, and can provide a board connector that can be downsized, save space on the board, and can simplify the terminal structure for preventing side shake. It is intended to provide.
[0008]
[Means for Solving the Problems]
The invention described in claim 1 includes a housing (2) in which a terminal insertion hole (3) is formed, and a terminal (5) inserted and held in the terminal insertion hole (3) by crimping and holding the electric wire (54). A connector for a board having a soldering foot (13) of a terminal (5) as a soldering portion to a circuit board (64), which is elastically deformable outwardly on the side wall of the housing (2) A housing lance (8) in which the portion (9) is located on the terminal insertion opening side, and the locking portion (9) is elastically deformed outward when the terminal (5) is inserted into the terminal insertion hole (3); A locking projection (7) is formed to be locked to the locking portion (9) when the insertion is completed and to prevent it from coming off.
[0009]
In such a configuration, the locking portion (9) of the housing lance (8) formed on the side wall of the housing (2) is located on the terminal insertion port side, and the locking projection (7) formed on the terminal (5). ) Elastically deforms the locking portion (9) to the outside when inserted into the terminal insertion hole (3), and locks to the locking portion (9) when the insertion is completed. (7) can be formed in an intermediate portion (for example, a connecting piece) of the terminal (5). Therefore, the tip 56 of the terminal 55 as in the conventional example shown in FIGS. 17 to 21 is not required, and the board connector can be downsized.
[0010]
According to a second aspect of the present invention, in the first aspect of the invention, in order to save space on the circuit board (64), the terminals (5) are sequentially formed along the axial direction of the electric wire (54). It has a coated crimp barrel (10), a connecting piece (12), and a core wire crimping barrel (11), and the soldering foot (13) protrudes from the connecting piece (12) in a direction substantially perpendicular to the axial direction of the electric wire (54). The locking projection (7) protrudes from the connecting piece (12) to the opposite side of the soldering foot (13).
[0011]
According to the third aspect of the present invention, the terminal insertion hole (3) of the terminal (5) is formed in the housing (2) in order to simplify the terminal structure for preventing lateral vibration in the invention of the first or second aspect. A locking projection insertion groove (18) is formed to guide the locking projection (7) when inserted into the guide, and to restrict the lateral deflection of the locking projection (7) when the insertion is completed, and this locking projection insertion groove (18) A locking part (9) is formed inside.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a board connector according to the present invention will be described with reference to FIGS.
1 to 5, reference numeral 1 denotes a board connector. The board connector 1 is a connector for connecting the electric wire 54 to the circuit board 64, similarly to the board connector 51 shown in FIGS. is there.
The board connector 1 includes a housing 2 and terminals 5 and 5 inserted and held in terminal insertion holes 3 and 3 of the housing 2.
[0013]
The housing 2 is made of an insulating resin material. As shown in FIGS. 6 to 11, the housing 2 has terminal insertion holes 3, 3 penetrating in the front-rear direction (vertical direction in FIG. 6, front-rear direction perpendicular to the paper surface in FIG. 7). 5 mm intervals).
[0014]
The top wall of the housing 2 (upper side wall in FIG. 7) is formed with U-shaped holes 4, 4 as viewed from above, and the U-shaped holes 4, 4 form a tongue-shaped housing lance (flexible (Locking arms) 8 and 8 are formed.
[0015]
The distal end portion of the housing lance 8 is located on the terminal insertion port side (lower side in FIG. 6) and is formed to be elastically deformable outward (upper side in FIG. 7).
A locking projection insertion groove 18 for inserting and guiding a locking projection 7 described later is formed on the bottom surface of the housing lance 8. , A locking portion 9 as shown in FIG. 11 is formed.
[0016]
Locking protrusion insertion grooves 19 and 19 are formed in the front side portion of the top wall of the housing 2 that is partitioned by the U-shaped holes 4 and 4. The locking projection insertion groove 19 is open to the terminal insertion port side on the front side and communicates with the locking projection insertion groove 18 through a gap formed by the U-shaped hole 4 on the back side.
[0017]
On the bottom wall of the housing 2 (lower side wall in FIG. 17), slits 20 are formed that open to the terminal insertion port side and penetrate vertically. The slit 20 is for inserting, guiding, and engaging a soldering foot 13 described later.
[0018]
The terminal 5 before being fixed to the electric wire 54 is formed by punching a metal plate material having elasticity into a shape as shown in FIG. 12 and cutting it with a cutting line SH.
Then, the terminal 5 is fixed to the end of the electric wire 54 by crimping and fixing the coated crimping barrel 10 and the core wire crimping barrel 11 to the coating of the electric wire 54 and the core wire by bending. That is, the coated crimp barrel 10 and the core crimp barrel 11 are formed in a substantially V-shaped cross section as shown in FIGS. 15 and 14 before the wire 54 is crimped, and after the wire 54 is crimped, As shown in FIGS. 1 to 4, crimping is performed so as to wrap the covering and core wire.
[0019]
The coated crimp barrel 10 and the core crimp barrel 11 of the terminal 5 are formed along the axial direction (vertical direction in FIG. 12) of the wire 54 to be crimped, and the connecting piece 12 is provided between the coated crimp barrel 10 and the core crimp barrel 11. Is formed.
A soldering foot 13 projects from the connecting piece 12 in a direction substantially perpendicular to the axial direction of the electric wire 54 (leftward in FIG. 12) and is connected to the opposite side (right side in FIG. 12) of the soldering foot 13. A stop projection 7 is provided.
In FIG. 12, 30 is a carrier, 31 is a feed hole.
[0020]
The terminal 5 fixed to the end of the electric wire 54 as described above is inserted into the corresponding terminal insertion hole 3 of the housing 2 as shown by an arrow in FIG. When the terminal 5 is inserted into the terminal insertion hole 3, the soldering foot 13 inserted and guided into the slit 20 is engaged with the closed end of the slit 20, so that the movement toward the back side (upper side in FIG. 1) is performed. The locking projection 7 that is regulated, inserted into and guided in the locking projection insertion grooves 19, 18 is locked to the locking portion 9 of the housing lance 8, thereby preventing it from coming off to the front side (lower side in FIG. 1). It becomes.
[0021]
When the terminal 5 is inserted into the terminal insertion hole 3, the locking protrusion 9 of the housing lance 8 is elastically deformed outward as indicated by a two-dot chain line at the time of insertion. The locking portion 9 returns to the position indicated by the solid line and locks to the locking projection 7. At this time, since the locking portion 9 of the housing lance 8 is formed on the front surface side (terminal insertion port side), the spring length of the housing lance 8 can be ensured.
Since the soldering foot 13 is engaged with the slit 20 and the locking projection 7 is inserted into the locking projection insertion groove 18, the movement in the lateral direction (left and right in FIGS. 2 to 4) is restricted. Lateral shaking of the terminal 5 can be prevented.
[0022]
As shown in FIG. 1, the board connector 1 formed as described above passes through the through hole 65 of the circuit board 64 as shown in FIG. 1, and is connected to the conductor portion of the circuit board 64 by soldering (not shown). Fixed.
[0023]
In the board connector 1 according to the present invention, the engaging portion 9 of the housing lance 8 is located on the terminal insertion port side, and the engaging protrusion 7 that engages with the engaging portion 9 is formed on the connecting piece 12. By appropriately forming the length of the piece 12, the end face of the board connector 1 and the end face of the circuit board 64 can be matched to save space on the circuit board 64.
That is, as shown in FIG. 1, the length of the connecting piece 12 is set so as to satisfy the condition that L is twice or more (eg, 1.6 mm) of D, and the end face of the board connector 1 and the circuit board. When the end faces of 64 are made coincident, the length of the connecting piece 12 is longer than the connecting piece 62 of the conventional example shown in FIG. The overall length can be the same as or less than that of the conventional board connector 51.
[0024]
When the length of the connecting piece 12 is the same as the connecting piece 62 of the conventional example of FIG. 17, the length S as shown in FIG. 17 is provided between the end face of the board connector 1 and the end face of the circuit board 64. However, the total length of the board connector 1 itself can be further shortened.
[0025]
In the embodiment described above, the case of two poles in which two terminal insertion holes 3 are formed in the housing 2 and the terminals 5 are inserted and locked in the respective terminal insertion holes 3 has been described, but the present invention is not limited to this. In the case of a single pole in which one terminal insertion hole 3 is formed in the housing 2 and the terminal 5 is inserted and locked, or in the housing 2, three or more terminal insertion holes 3 are formed in each terminal insertion hole 3. It can also be used in the case of three or more poles in which the terminal 5 is inserted and locked.
[0026]
In the above embodiment, in order to prevent lateral shaking without complicating the structure of the terminal 5, the locking projection 7 is guided to the housing 2 when the terminal 5 is inserted into the terminal insertion hole 3, and when the insertion is completed. Although the description has been given of the case where the locking projection insertion groove 18 for restricting the lateral deflection of the locking projection 7 is formed and the locking portion 9 is formed in the locking projection insertion groove 18, the present invention is not limited to this. In addition, the case where the locking protrusion insertion groove 18 is omitted and a lateral run-out restricting piece is provided on the connecting piece 12 of the terminal 5 can be used.
[0027]
In the embodiment, the right angle type board connector 1 in which the protruding direction of the soldering feet 13 is perpendicular to the axial direction of the electric wires 54 has been described in order to save space on the circuit board 64. However, the present invention is not limited to this, and a straight type board connector in which the protruding direction of the soldering feet is parallel to the axial direction of the electric wire 54 can also be used.
[0028]
【The invention's effect】
According to the first aspect of the present invention, in the board connector, the position of the locking portion (9) of the housing lance (8) formed on the side wall of the housing (2) is the terminal insertion port side, and the terminal insertion hole 3 is locked. The projection (7) elastically deforms the locking portion (9) outward when inserted into the terminal insertion hole (3), and locks to the locking portion (9) when insertion is completed to prevent the projection (7) from coming off. Therefore, the latching protrusion (7) can be formed in the intermediate part (for example, connecting piece) of the terminal (5), and the board connector can be miniaturized.
[0029]
The invention according to claim 2 is the invention according to claim 1, wherein the terminal (5) is sequentially formed along the axial direction of the electric wire (54), the covering crimping barrel (10), the connecting piece (12), and the core wire crimping. It has a barrel (11), a soldering foot (13) projects from the connecting piece (12) in a direction substantially perpendicular to the axial direction of the electric wire (54), and a locking projection (7) of the soldering foot (13). Since the structure protrudes from the connecting piece (12) on the opposite side (that is, the right angle type), the end face of the board connector coincides with the end face of the circuit board (64) to save space on the circuit board (64). Can be planned.
[0030]
The invention according to claim 3 is the invention according to claim 1 or 2, wherein when the terminal (5) is inserted into the terminal insertion hole (3), the locking projection (7) is guided and inserted into the housing (2). When completed, the locking projection insertion groove (18) that restricts the lateral deflection of the locking projection (7) is formed, and the locking portion (9) is formed in the locking projection insertion groove (18). The lateral vibration of the terminal (5) can be prevented without complicating the structure of the terminal (5).
[Brief description of the drawings]
FIG. 1 is a view showing an embodiment of a board connector according to the present invention, in which the board connector 1 is a cross-sectional view taken along line AA of FIG.
FIG. 2 is a plan view showing the board connector 1 in FIG. 1 with a part cut away;
FIG. 3 is a front view of FIG. 2;
4 is a rear view of FIG. 3. FIG.
FIG. 5 is a right side view of FIG. 2;
6 is a plan view showing the housing 2 in FIG. 1. FIG.
7 is a front view of FIG. 6. FIG.
FIG. 8 is a rear view of FIG. 7;
FIG. 9 is a left side view of FIG.
10 is a cross-sectional view taken along line AA in FIG.
11 is a partial perspective view showing the locking portion 9 of the housing lance 8. FIG.
12 is a plan view showing the terminal 5 connected to the carrier 30 before being fixed to the electric wire 54. FIG.
FIG. 13 is a right side view of the housing (2) after being cut along the cutting line SH in FIG.
14 is a cross-sectional view taken along line AA in FIG.
15 is an end view taken along line BB in FIG. 12. FIG.
16 is an end view taken along the line CC of FIG.
17 is a view showing a conventional example, and a board connector 51 in the drawing is a cross-sectional view taken along line AA of FIG.
18 is a diagram showing the board connector 51 in FIG. 17, and is a plan view with a part cut away. FIG.
FIG. 19 is a front view of FIG. 18;
20 is a rear view of FIG. 19. FIG.
FIG. 21 is a right side view of FIG. 18;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Board | substrate connector, 2 ... Housing, 3 ... Terminal insertion hole, 4 ... U-shaped hole, 5 ... Terminal, 7 ... Locking protrusion, 8 ... Housing lance, 9 ... Locking part, 10 ... Covering crimping barrel, 11 DESCRIPTION OF SYMBOLS ... Core wire crimping barrel, 12 ... Connection piece, 13 ... Soldering foot, 18, 19 ... Locking protrusion insertion groove, 20 ... Slit, 54 ... Electric wire, 64 ... Circuit board.

Claims (3)

端子挿入孔(3)が形成されたハウジング(2)と、電線(54)を圧着保持して端子挿入孔(3)に挿入保持される端子(5)とを具備し、端子(5)の半田付け足(13)を回路基板(64)への半田付け部とする基板用コネクタであって、ハウジング(2)の側壁にハウジングランス(8)を形成し、このハウジングランス(8)の端子挿入口側に外側への弾性変形可能な係止部(9)を形成し、端子(5)に、端子挿入孔(3)への挿入時に係止部(9)を外側へ弾性変形させ、挿入完了時に係止部(9)に係止して抜け止めとなる係止突起(7)を形成してなることを特徴とする基板用コネクタ。A housing (2) in which a terminal insertion hole (3) is formed; and a terminal (5) inserted and held in the terminal insertion hole (3) by crimping and holding the electric wire (54). A board connector having a soldering foot (13) as a soldering portion to a circuit board (64), wherein a housing lance (8) is formed on a side wall of the housing (2), and terminals of the housing lance (8) An engaging portion (9) that can be elastically deformed outward is formed on the insertion port side, and the engaging portion (9) is elastically deformed outward when the terminal (5) is inserted into the terminal insertion hole (3). A board connector, characterized in that a locking projection (7) is formed which is locked to the locking portion (9) when the insertion is completed to prevent it from coming off. 端子(5)は、電線(54)の軸線方向に沿って順次形成された被覆圧着バレル(10)、連結片(12)及び芯線圧着バレル(11)を具備し、半田付け足(13)を電線(54)の軸線方向と略垂直な方向に連結片(12)から突出して形成し、係止突起(7)を半田付け足(13)の反対側へ連結片(12)から突出して形成してなる請求項1記載の基板用コネクタ。The terminal (5) includes a coated crimping barrel (10), a connecting piece (12), and a core crimping barrel (11) that are sequentially formed along the axial direction of the electric wire (54), and the soldering foot (13). It is formed to project from the connecting piece (12) in a direction substantially perpendicular to the axial direction of the electric wire (54), and a locking projection (7) is formed to project from the connecting piece (12) to the opposite side of the soldering foot (13). The board connector according to claim 1. ハウジング(2)に、端子(5)の端子挿入孔(3)への挿入時には係止突起(7)を案内し、挿入完了時には係止突起(7)の横振れを規制する係止突起挿入溝(18)を形成し、この係止突起挿入溝(18)内に係止部(9)を形成してなる請求項1又は2記載の基板用コネクタ。Insertion of a locking projection into the housing (2) for guiding the locking projection (7) when the terminal (5) is inserted into the terminal insertion hole (3), and restricting the lateral deflection of the locking projection (7) when the insertion is completed The board connector according to claim 1 or 2, wherein a groove (18) is formed, and a locking portion (9) is formed in the locking protrusion insertion groove (18).
JP2001360078A 2001-11-26 2001-11-26 Board connector Expired - Fee Related JP3874367B2 (en)

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JP3874367B2 true JP3874367B2 (en) 2007-01-31

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JP2006108053A (en) * 2004-10-08 2006-04-20 Tyco Electronics Amp Kk Contact and electric connector

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