JP2018181696A - Coaxial connector - Google Patents
Coaxial connector Download PDFInfo
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- JP2018181696A JP2018181696A JP2017082017A JP2017082017A JP2018181696A JP 2018181696 A JP2018181696 A JP 2018181696A JP 2017082017 A JP2017082017 A JP 2017082017A JP 2017082017 A JP2017082017 A JP 2017082017A JP 2018181696 A JP2018181696 A JP 2018181696A
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- coaxial connector
- contact
- substrate
- mounting leg
- mounting
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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
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
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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
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
Abstract
Description
本発明は、通信カードや移動体通信機器、音響機器、映像機器等の電子機器に使用される同軸コネクタに関し、特に基板に搭載されて使用される同軸コネクタに関する。 The present invention relates to a coaxial connector used in electronic devices such as communication cards, mobile communication devices, audio devices, and video devices, and more particularly to a coaxial connector mounted on a substrate and used.
この種の同軸コネクタとして、特許文献１には、中心コンタクトと、中心コンタクトを保持する絶縁体と、絶縁体を保持するとともに相手側コネクタに結合される嵌合部、および基板へ実装される実装部を有する外部導体と、を備えるものが知られている。 As a coaxial connector of this type, Patent Document 1 discloses a center contact, an insulator for holding the center contact, a fitting portion for holding the insulator and being coupled to a mating connector, and mounting to be mounted on a substrate An outer conductor having a portion is known.
実装部には、基板のスルーホールに挿入され、はんだ付けされる円柱形状の実装脚が設けられており、スルーホールへの実装脚の円滑な挿入と、実装時の良好なはんだ流れとを確保するため、実装脚とスルーホールとの間にクリアランスを設けるのが通常であるが、このクリアランスによって同軸コネクタの実装位置ずれが生じる。 The mounting section is provided with a cylindrical mounting leg that is inserted into and soldered to the through hole of the substrate, ensuring smooth insertion of the mounting leg into the through hole and good solder flow during mounting. In order to do this, it is usual to provide a clearance between the mounting leg and the through hole, but this clearance causes the mounting position deviation of the coaxial connector.
ところで、近年、電子機器で処理する情報量が増大し、それに伴い基板間におけるデータの伝送速度も飛躍的に高速化してきており、高周波信号の伝送を扱う同軸コネクタでは、僅かな実装位置ずれによっても同軸コネクタの電圧定在波比が悪化してしまう。 By the way, in recent years, the amount of information to be processed by electronic devices has increased, and along with this, the transmission speed of data between boards has been dramatically increased, and with coaxial connectors that handle transmission of high frequency signals Also, the voltage standing wave ratio of the coaxial connector is deteriorated.
本発明は、上記従来技術の問題を解消し、同軸コネクタの、基板への実装時における位置ずれに起因した電圧定在波比の増大を防止することができる同軸コネクタを提供することを目的とする。 An object of the present invention is to provide a coaxial connector capable of solving the above-mentioned problems of the prior art and preventing an increase in voltage standing wave ratio caused by displacement of the coaxial connector at the time of mounting on a substrate. Do.
本発明は、基板に実装される同軸コネクタであって、中心コンタクトと、前記中心コンタクトを保持する絶縁体と、前記絶縁体を保持するとともに相手側コネクタに結合される外部コンタクト、および前記基板のスルーホールに挿入される実装脚が形成されたベースを有する外部導体と、を備え、上記目的を達成するため、前記実装脚は、その軸心に対する直交平面にて互いに離間する少なくとも２つの突起を有している。 The present invention is a coaxial connector mounted on a substrate, comprising: a central contact; an insulator for holding the central contact; an external contact for holding the insulator and being coupled to a mating connector; And an outer conductor having a base on which a mounting leg is formed to be inserted into the through hole, wherein the mounting leg has at least two protrusions spaced apart from each other in a plane orthogonal to its axis. Have.
なお、本発明の同軸コネクタにあっては、前記少なくとも２つの突起は、前記直交平面にて互いに等角度で配置されていることが好ましい。 In the coaxial connector according to the present invention, it is preferable that the at least two protrusions be arranged at equal angles with each other in the orthogonal plane.
また、本発明の同軸コネクタにあっては、前記実装脚は、３つの前記突起を有することが好ましい。 In the coaxial connector according to the present invention, preferably, the mounting leg has three of the protrusions.
さらに、本発明の同軸コネクタにあっては、前記突起は、前記軸心方向に延びるリブ形状に形成されていることが好ましい。 Furthermore, in the coaxial connector according to the present invention, the protrusion is preferably formed in a rib shape extending in the axial direction.
さらに、本発明の同軸コネクタにあっては、前記外部コンタクトおよび前記ベースは、亜鉛もしくはその合金、またはアルミニウムもしくはその合金からなり、互いに一体化されたダイカスト品であることが好ましい。 Furthermore, in the coaxial connector according to the present invention, preferably, the external contact and the base are made of zinc or an alloy thereof, or aluminum or an alloy thereof, and they are die cast products integrated with each other.
さらに、本発明の同軸コネクタにあっては、前記ベースは、前記基板とは反対側に自動実装機が吸着可能な吸着面を有することが好ましい。 Furthermore, in the coaxial connector according to the present invention, it is preferable that the base has a suction surface on the side opposite to the substrate on which the automatic mounting machine can suction.
さらに、本発明の同軸コネクタにあっては、前記中心コンタクト、前記絶縁体および前記外部コンタクトをそれぞれ２つ備えることが好ましい。 Furthermore, in the coaxial connector according to the present invention, it is preferable to provide two each of the center contact, the insulator and the outer contact.
本発明の同軸コネクタによれば、実装脚に形成された複数の突起によって、実装脚とスルーホールの内面との間に隙間を形成してこの隙間にはんだを流入させることができるので、同軸コネクタを基板に安定して実装することができる。また、実装脚に突起を設けることによって、同軸コネクタを高い位置決め精度で基板に実装することができるようになるので、実装時における位置ずれに起因した電圧定在波比の増大を防止することができる。 According to the coaxial connector of the present invention, the plurality of projections formed on the mounting leg can form a gap between the mounting leg and the inner surface of the through hole to allow the solder to flow into the gap. Can be stably mounted on a substrate. Further, by providing the protrusion on the mounting leg, the coaxial connector can be mounted on the substrate with high positioning accuracy, so that an increase in voltage standing wave ratio due to positional deviation during mounting can be prevented. it can.
以下、本発明の実施の形態を図面に基づき詳細に説明する。ここで図１は、本発明にしたがう一実施形態の２連式の同軸コネクタの上面側を示す斜視図であり、図２は、図１の同軸コネクタの底面側（実装面側）を示す斜視図であり、図３は、図１の同軸コネクタの正面図であり、図４は、図３におけるＡ−Ａ線に沿う断面図であり、図５は、図１の同軸コネクタの分解斜視図である。 Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Here, FIG. 1 is a perspective view showing the upper surface side of the twin coaxial connector of the embodiment according to the present invention, and FIG. 2 is a perspective view showing the bottom surface side (mounting surface side) of the coaxial connector of FIG. 3 is a front view of the coaxial connector of FIG. 1, FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 3, and FIG. 5 is an exploded perspective view of the coaxial connector of FIG. It is.
図１および図２に示すように、実施形態の同軸コネクタ１０はレセプタクルコネクタであり、相手側同軸コネクタであるプラグコネクタ（図示省略）の外部導体に結合される少なくとも１つ（ここでは２つ）の外部コンタクト１２と、基板Ｂ（図７参照）に実装されるベース１４とを備えている。外部コンタクト１２およびベース１４は、協働して外部導体１５を構成する。同軸コネクタ１０は、好ましくは高周波信号を伝送する高周波同軸コネクタ１０である。以下の説明では便宜上、相手側同軸コネクタとの挿抜方向を前後方向として前後左右方向を規定する。また、同軸コネクタ１０からみて基板Ｂ側を下として上下方向を規定する。したがって、図１および図２に示すように、外部コンタクト１２は同軸コネクタ１０の前方側に配置され、ベース１４は同軸コネクタ１０の後方側に配置されている。 As shown in FIG. 1 and FIG. 2, the coaxial connector 10 of the embodiment is a receptacle connector, and at least one (here two) coupled to the outer conductor of a plug connector (not shown) which is a mating coaxial connector. And a base 14 mounted on a substrate B (see FIG. 7). The outer contact 12 and the base 14 cooperate to constitute the outer conductor 15. The coaxial connector 10 is preferably a high frequency coaxial connector 10 for transmitting a high frequency signal. In the following description, for the sake of convenience, the insertion and removal direction with the mating coaxial connector is defined as the front-rear direction and the front-rear and left-right directions. Further, the vertical direction is defined with the substrate B side down as viewed from the coaxial connector 10. Accordingly, as shown in FIGS. 1 and 2, the external contact 12 is disposed on the front side of the coaxial connector 10, and the base 14 is disposed on the rear side of the coaxial connector 10.
各外部コンタクト１２は円筒状をなし、その外周面には相手側同軸コネクタの溝またはスリットにバヨネット式に嵌合される凸部１２ａが形成されている。これにより、外部コンタクト１２は相手側同軸コネクタの外部導体にバヨネット式に結合される。相手側同軸コネクタとの結合形成はこれに限定されず、ネジ結合やプッシュオン結合等でもよい。 Each external contact 12 has a cylindrical shape, and a convex portion 12a fitted in a bayonet-like manner in a groove or a slit of the mating coaxial connector is formed on the outer peripheral surface of the outer contact 12. Thus, the external contact 12 is bayonet-coupled to the external conductor of the mating coaxial connector. The coupling formation with the mating coaxial connector is not limited to this, and may be screw coupling, push-on coupling, or the like.
外部コンタクト１２およびベース１４は、亜鉛もしくはその合金、またはアルミニウムもしくはその合金からなり、互いに一体化されたダイカスト品であることが好ましい。 The outer contact 12 and the base 14 are preferably die-cast products made of zinc or an alloy thereof, or aluminum or an alloy thereof and integrated with each other.
外部コンタクト１２の内側には、図３および図４に示すように、相手側同軸コネクタの中心コンタクトと電気的に接続される中心コンタクト１６と、中心コンタクト１６を保持する絶縁体１８とが配置されている。 Inside the external contact 12, as shown in FIGS. 3 and 4, a central contact 16 electrically connected to the central contact of the mating coaxial connector and an insulator 18 for holding the central contact 16 are arranged. ing.
絶縁体１８は、外部コンタクト１２の基端部側（後方側）に形成された凹部１２ｂ内に圧入により保持されている。絶縁体１８の中心には、前後方向に延びる貫通孔１８ａが形成されており、中心コンタクト１６は貫通孔１８ａ内に保持されている。中心コンタクト１６には、絶縁体１８の貫通孔１８ａの内面と係止する係止部１６ａが形成され、中心コンタクト１６の脱落防止や位置変動の防止が図られている。絶縁体１８および中心コンタクト１６は、図５に示すように、外部コンタクト１２の前方側開口から挿入し、組み付けることができる。あるいは、中心コンタクト１６をインサート品として絶縁体１８をインサート成形してもよい。 The insulator 18 is press-fitted and held in a recess 12 b formed on the proximal end side (rear side) of the external contact 12. A through hole 18a extending in the front-rear direction is formed at the center of the insulator 18, and the central contact 16 is held in the through hole 18a. The center contact 16 is formed with a locking portion 16a that locks with the inner surface of the through hole 18a of the insulator 18, thereby preventing the center contact 16 from falling off and preventing positional variation. The insulator 18 and the center contact 16 can be inserted from the front side opening of the outer contact 12 and assembled as shown in FIG. Alternatively, the insulator 18 may be insert molded with the center contact 16 as an insert.
中心コンタクト１６は、一端（前端）において相手側同軸コンタクトの中心コンタクトとの接続のため外部コンタクト１２内に露出し、他端（後端）において基板Ｂに形成されたマイクロストリップライン等の導体との接続のためベース１４から露出している。 The central contact 16 is exposed in the external contact 12 for connection with the central contact of the counterpart coaxial contact at one end (front end), and a conductor such as a microstrip line formed on the substrate B at the other end (rear end) Exposed from the base 14 for connection.
ベース１４は、図１および図２に示すように、外部コンタクト１２の基端位置にて上下、左右方向に延びるフランジ２０と、フランジ２０から後方へ延びる３つの実装ブロック２２と、実装ブロック２２間に配置されるとともに、フランジ２０の上縁と面一をなす吸着面２４とを有している。 The base 14 is, as shown in FIGS. 1 and 2, between the mounting block 22 and a flange 20 extending in the vertical and horizontal directions at the base end position of the external contact 12, and three mounting blocks 22 extending rearward from the flange 20. And a suction surface 24 flush with the upper edge of the flange 20.
フランジ２０には、同軸コネクタ１０を電子機器の筐体等に固定するねじ用のねじ穴２６が形成されていてよい。また、実装ブロック２２にも同様のねじ穴２８が形成されてよい。基板Ｂの、ねじ穴２８の対応位置に貫通穴（図示省略）を形成しておき、この貫通穴に基板Ｂの下面側からねじを挿通してねじ穴２８に締結することで、同軸コネクタ１０と基板Ｂとの固定強度を高めることができる。 The flange 20 may be formed with screw holes 26 for fixing the coaxial connector 10 to a housing or the like of the electronic device. Also, similar screw holes 28 may be formed in the mounting block 22. A through hole (not shown) is formed at a position corresponding to the screw hole 28 of the substrate B, and a screw is inserted into the through hole from the lower surface side of the substrate B and fastened to the screw hole 28. And the fixing strength of the substrate B can be increased.
実装ブロック２２は、中心コンタクト１６を避けるように互いに間隔を空けて配置されており、各実装ブロック２２の下面（基板Ｂに対向する面）には、基板Ｂ表面との間に隙間を維持するスペーサ突起３０が一体に形成されている。 The mounting blocks 22 are spaced apart from one another so as to avoid the center contact 16 and maintain a gap between the mounting block 22 on the lower surface (surface facing the substrate B) and the surface of the substrate B. Spacer protrusions 30 are integrally formed.
また、各実装ブロック２２には、基板Ｂのスルーホールｂ１に挿入される実装脚３２が垂下されている。実装脚３２は各実装ブロック２２に２つ形成されているが、実装脚３２の数はこれに限定されず、１つでも３つ以上でもよい。 In each mounting block 22, mounting legs 32 inserted into the through holes b 1 of the substrate B are suspended. Although two mounting legs 32 are formed in each mounting block 22, the number of mounting legs 32 is not limited to this, and may be one or three or more.
実装脚３２は、概略円柱状をなし、その外周面にはその軸心Ｘ（図４参照）に対する直交平面にて互いに離間する少なくとも２つの突起３４が形成されている。図示例では３つの突起３４が等角度間隔（１２０度間隔）に形成されている。突起３４の数は３つに限定されず、２つでも４つ以上でもよい。突起３４は、実装脚３２の軸心Ｘ方向に沿って延びるリブ形状を有する。実装脚３２の下端および突起３４の下端には、スルーホールｂ１内への実装脚３２の挿入を円滑にする面取り部３２ａ，３４ａが形成されていてよい。 The mounting leg 32 has a substantially cylindrical shape, and at its outer peripheral surface is formed at least two protrusions 34 which are separated from each other in a plane perpendicular to the axis X (see FIG. 4). In the illustrated example, three projections 34 are formed at equal angular intervals (120 degrees apart). The number of protrusions 34 is not limited to three, and may be two or four or more. The protrusion 34 has a rib shape extending along the axial center X direction of the mounting leg 32. At the lower end of the mounting leg 32 and the lower end of the projection 34, chamfers 32a and 34a may be formed to facilitate insertion of the mounting leg 32 into the through hole b1.
また、突起３４は、図６中拡大して示すように、底面視あるいは断面視で中央部が凸状に膨らんだ凸状湾曲面を有している。これにより、突起３４はスルーホールｂ１の内面に線接触または点接触する。突起３４の高さｈは、突起３４を除く実装脚３２の直径Ｄに対して３０％〜６０％の範囲とすることが好ましい。後述のように、実装脚３２とスルーホールｂ１の内面との間にはんだを流入させる十分な隙間を確保するためである。 Further, as shown in an enlarged manner in FIG. 6, the projection 34 has a convex curved surface in which a central portion is convexly convex in a bottom view or a sectional view. Thereby, the projections 34 make line contact or point contact with the inner surface of the through hole b1. The height h of the projection 34 is preferably in the range of 30% to 60% with respect to the diameter D of the mounting leg 32 excluding the projection 34. As will be described later, this is for securing a sufficient gap for allowing solder to flow between the mounting leg 32 and the inner surface of the through hole b1.
このように構成された同軸コネクタ１０を、図７に示すように基板Ｂに実装するには、まず、図示しない自動実装機（供給部から供給された電子部品を吸着ノズルで吸着し、基板の所定の場所へ搭載する装置）の吸着ノズルで同軸コネクタ１０の吸着面２４を吸着し、同軸コネクタ１０の各実装脚３２を基板Ｂの対応するスルーホールｂ１内へ挿入する。このとき、図８に基板への実装状態を示すように、各実装脚３２の外面に形成された複数の突起３４がスルーホールｂ１の内面に当接することにより同軸コネクタ１０は正確に位置決めされ、この状態で中心コンタクト１６の後端はマイクロストリップ等の導体に接続されるとともに、実装脚３２はスルーホールｂ１にはんだ付けされる。図８中の拡大図からわかるように、各突起３４はその凸状湾曲面の中央部だけがスルーホールｂ１の内面に当接（線接触）するので、挿入時の摩擦は小さくなり、しかも隣接する突起３４間の容積も増大する。 In order to mount the coaxial connector 10 configured in this way on the substrate B as shown in FIG. 7, first, an automatic mounting machine (not shown) picks up the electronic components supplied from the supply unit by The suction surface of the coaxial connector 10 is suctioned by the suction nozzle of a device mounted at a predetermined place, and each mounting leg 32 of the coaxial connector 10 is inserted into the corresponding through hole b1 of the substrate B. At this time, as shown in FIG. 8, the coaxial connector 10 is accurately positioned by the plurality of projections 34 formed on the outer surface of each mounting leg 32 coming into contact with the inner surface of the through hole b1. In this state, the rear end of the central contact 16 is connected to a conductor such as a microstrip, and the mounting leg 32 is soldered to the through hole b1. As can be seen from the enlarged view in FIG. 8, since only the central portion of the convex curved surface abuts on (is in line contact with) the inner surface of the through hole b1, the friction at the time of insertion becomes smaller and adjacent The volume between the protuberances 34 also increases.
したがって、本実施形態の同軸コネクタ１０によれば、実装脚３２とスルーホールｂ１の内面との間および隣接する突起３４間に十分な量のはんだを流入させることができる。また、実装脚３２に突起３４が形成されることによって、実装脚３２がスルーホールｂ１に同心配置され、同軸コネクタ１０を高い位置決め精度で基板に実装することができるようになるので、実装時における位置ずれに起因した電圧定在波比の増大を防止することができる。 Therefore, according to the coaxial connector 10 of the present embodiment, a sufficient amount of solder can be made to flow between the mounting leg 32 and the inner surface of the through hole b1 and between the adjacent protrusions 34. Further, by forming the projection 34 on the mounting leg 32, the mounting leg 32 is concentrically disposed in the through hole b1, and the coaxial connector 10 can be mounted on the substrate with high positioning accuracy. It is possible to prevent an increase in voltage standing wave ratio caused by misalignment.
また、本実施形態において、突起３４を、実装脚３２の軸心Ｘに対する直交平面にて互いに等角度で配置した場合には、実装脚３２の軸心Ｘをスルーホールｂ１の軸心に確実に一致させることができ、より高い位置決め精度での実装が可能になる。 Further, in the present embodiment, when the protrusions 34 are arranged equiangularly with each other in a plane perpendicular to the axial center X of the mounting leg 32, the axial center X of the mounting leg 32 is reliably centered on the axial center of the through hole b1. It is possible to match and enable implementation with higher positioning accuracy.
さらに、本実施形態において、各実装脚３２に形成する突起３４の数を３つとした場合には、基板Ｂに対する高い位置決め精度を確保しつつ、隣接する突起３４間にはんだ流入のための十分な隙間を形成することができる。 Furthermore, in the present embodiment, when the number of the projections 34 formed on each mounting leg 32 is three, it is sufficient for the solder inflow between the adjacent projections 34 while securing high positioning accuracy with respect to the substrate B. A gap can be formed.
さらに、本実施形態において、突起３４を軸心Ｘ方向に延びるリブ形状に形成した場合には、突起３４とスルーホールｂ１内面との上下方向（挿入方向）に沿う接触長さを増大させることができるので、同軸コネクタ１０の実装姿勢をより一層安定なものとすることができる。 Furthermore, in the present embodiment, when the protrusion 34 is formed in a rib shape extending in the axial center X direction, the contact length along the vertical direction (insertion direction) between the protrusion 34 and the inner surface of the through hole b1 can be increased. As a result, the mounting posture of the coaxial connector 10 can be made more stable.
さらに、本実施形態において、外部コンタクト１２およびベース１４を、亜鉛もしくはその合金、またはアルミニウムもしくはその合金からなり、互いに一体化されたダイカスト品とした場合には、ベース１４を切削加工で形成した場合と比較して軽量化することができる。特にこのような軽量化は、本実施形態において、ベース１４の上面の吸着面２４を自動実装機で吸着して基板Ｂに自動実装する場合に有利に働く。 Furthermore, in the present embodiment, when the external contact 12 and the base 14 are made of zinc or an alloy thereof, or aluminum or an alloy thereof, and are die cast products integrated with each other, the base 14 is formed by cutting. It can be reduced in weight compared to. In particular, such weight reduction works advantageously in the case where the suction surface 24 on the upper surface of the base 14 is adsorbed by the automatic mounting machine and automatically mounted on the substrate B in the present embodiment.
つぎに、図９および図１０を参照し、本発明の他の実施形態の同軸コネクタ１０について説明する。なお、先の実施形態で説明した同軸コネクタ１０における部材または部分と同様の要素には同一の符号を付し、説明は適宜省略する。 Next, a coaxial connector 10 according to another embodiment of the present invention will be described with reference to FIGS. 9 and 10. In addition, the same code | symbol is attached | subjected to the element similar to the member or part in the coaxial connector 10 demonstrated by previous embodiment, and description is abbreviate | omitted suitably.
先の実施形態の同軸コネクタ１０は、中心コンタクト１６、絶縁体１８および外部コンタクト１２をそれぞれ２つ備えるものであったが、本実施形態の同軸コネクタ１０は、中心コンタクト１６、絶縁体１８および外部コンタクト１２をそれぞれ１つしか備えていない点で異なる。 The coaxial connector 10 of the previous embodiment comprises two each of the central contact 16, the insulator 18 and the external contact 12, but the coaxial connector 10 of the present embodiment comprises the central contact 16, the insulator 18 and the external The difference is that only one contact 12 is provided.
本実施形態の同軸コネクタ１０においても、基板Ｂのスルーホールｂ１に挿入される円柱状の実装脚３２の外面には３つのリブ状の突起３４が形成されている。突起３４の数は３つに限定されず、２つでも４つ以上でもよい。これにより、本実施形態の同軸コネクタ１０によれば、実装脚３２とスルーホールｂ１の内面との間および隣接する突起３４間に十分な量のはんだを流入させることができる。また、実装脚３２に突起３４を設けることによって、同軸コネクタ１０を高い位置決め精度で基板Ｂに実装することができるようになるので、実装時における位置ずれに起因した電圧定在波比の増大を防止することができる。 Also in the coaxial connector 10 of the present embodiment, three rib-like protrusions 34 are formed on the outer surface of the cylindrical mounting leg 32 inserted into the through hole b1 of the substrate B. The number of protrusions 34 is not limited to three, and may be two or four or more. Thereby, according to the coaxial connector 10 of the present embodiment, a sufficient amount of solder can be made to flow between the mounting leg 32 and the inner surface of the through hole b1 and between the adjacent protrusions 34. Further, by providing the protrusion 34 on the mounting leg 32, the coaxial connector 10 can be mounted on the substrate B with high positioning accuracy, so that the voltage standing wave ratio is increased due to the positional deviation at the time of mounting. It can be prevented.
図１〜図８に示した構造を備える同軸コネクタの試料（実施例）と、実装脚に突起を設けていない点以外は実施例の同軸コネクタと同じ構造を備える図示しない同軸コネクタの試料（比較例）を作製し、ネットワークアナライザを用いて電圧定在波比を測定した。その結果を図１１に示す。 A sample (example) of the coaxial connector having the structure shown in FIGS. 1 to 8 and a sample (not shown) of the coaxial connector (not shown) having the same structure as the coaxial connector of the example except that the protrusion is not provided on the mounting leg. Example) was prepared, and the voltage standing wave ratio was measured using a network analyzer. The results are shown in FIG.
図１１において、横軸は周波数（ＧＨｚ）を、縦軸は電圧定在波比を表す。図中実線で描かれた特性曲線は、実施例の同軸コネクタの電圧定在波比の周波数特性を示し、破線で描かれた特性曲線は、比較例の同軸コネクタの電圧定在波比の周波数特性を示している。 In FIG. 11, the horizontal axis represents frequency (GHz) and the vertical axis represents voltage standing wave ratio. The characteristic curve drawn by the solid line in the figure shows the frequency characteristic of the voltage standing wave ratio of the coaxial connector of the example, and the characteristic curve drawn by the broken line shows the frequency of the voltage standing wave ratio of the coaxial connector of the comparative example. It shows the characteristics.
この結果からわかるように、本発明の試料では、周波数が高くなるに連れて電圧定在波比が増加するがその増大は緩やかであり、１２ＧＨｚで１．２３であった。 As can be seen from this result, in the sample of the present invention, as the frequency increases, the voltage standing wave ratio increases but the increase is gradual, and is 1.23 at 12 GHz.
これに対し、比較例の試料では、周波数が高くなるに連れて電圧定在波比は急激に増大し、１２ＧＨｚで１．４４であった。 On the other hand, in the sample of the comparative example, the voltage standing wave ratio increased rapidly as the frequency increased, and was 1.44 at 12 GHz.
これにより、本発明の同軸コネクタによれば、高周波帯域においても安定した高周波特性を有することが確認できた。 Thereby, according to the coaxial connector of the present invention, it has been confirmed that stable high frequency characteristics are obtained even in the high frequency band.
以上、図示例に基づき本発明を説明したが、本発明は種々の変更が可能である。例えば、外部コンタクト１２とベース１４は一体成形されると説明したが、外部コンタクト１２とベース１４は別体として成形し相互連結させてもよい。 Although the present invention has been described above based on the illustrated examples, various modifications can be made to the present invention. For example, although the outer contact 12 and the base 14 are described as being integrally molded, the outer contact 12 and the base 14 may be separately molded and interconnected.
本発明によれば、同軸コネクタの、基板への実装時における位置ずれに起因した電圧定在波比の増大を防止可能な同軸コネクタを提供することが可能である。 According to the present invention, it is possible to provide a coaxial connector capable of preventing an increase in voltage standing wave ratio caused by displacement of the coaxial connector during mounting on a substrate.
１０ 同軸コネクタ
１２ 外部コンタクト
１４ ベース
１５ 外部導体
１６ 中心コンタクト
１８ 絶縁体
２０ フランジ
２２ 実装ブロック
２４ 吸着面
３０ スペーサ突起
３２ 実装脚
３４ 突起
DESCRIPTION OF SYMBOLS 10 coaxial connector 12 external contact 14 base 15 external conductor 16 center contact 18 insulator 20 flange 22 mounting block 24 suction surface 30 spacer protrusion 32 mounting leg 34 protrusion
Claims (7)
中心コンタクトと、
前記中心コンタクトを保持する絶縁体と、
前記絶縁体を保持するとともに相手側コネクタに結合される外部コンタクト、および前記基板のスルーホールに挿入される実装脚が形成されたベースを有する外部導体と、を備え、
前記実装脚は、その軸心に対する直交平面にて互いに離間する少なくとも２つの突起を有することを特徴とする同軸コネクタ。 A coaxial connector mounted on a substrate,
With the center contact,
An insulator holding the central contact;
And an outer conductor having an outer contact holding the insulator and coupled to a mating connector, and an outer conductor having a base on which a mounting leg is inserted into a through hole of the substrate.
The coaxial connector according to claim 1, wherein the mounting leg has at least two protrusions spaced apart from each other in a plane perpendicular to its axis.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017082017A JP2018181696A (en) | 2017-04-18 | 2017-04-18 | Coaxial connector |
| CN201810199123.0A CN108736277A (en) | 2017-04-18 | 2018-03-12 | Coaxial connector |
| CN202010428941.0A CN111541113A (en) | 2017-04-18 | 2018-03-12 | Coaxial connector |
| JP2019176462A JP6976296B2 (en) | 2017-04-18 | 2019-09-27 | Coaxial connector |
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| JP2017082017A JP2018181696A (en) | 2017-04-18 | 2017-04-18 | Coaxial connector |
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| JP2019176462A Division JP6976296B2 (en) | 2017-04-18 | 2019-09-27 | Coaxial connector |
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| JP2018181696A true JP2018181696A (en) | 2018-11-15 |
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| CN (2) | CN111541113A (en) |
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| JPH0719857B2 (en) * | 1986-04-30 | 1995-03-06 | イビデン株式会社 | Semiconductor mounting board |
| DE19851868C1 (en) * | 1998-11-10 | 2001-10-31 | Tyco Electronics Logistics Ag | Electrical circuit board component and method for the automatic assembly of circuit boards with such components |
| US6776621B1 (en) * | 2003-08-27 | 2004-08-17 | Itt Manufacturing Enterprises, Inc. | Board mounted coax connector assembly |
| JP2005129274A (en) * | 2003-10-21 | 2005-05-19 | Fujitsu Ten Ltd | Press-fit terminal and connecting structure |
| JP6446725B2 (en) * | 2014-12-02 | 2019-01-09 | ヒロセ電機株式会社 | Coaxial cable connector with improved crimp strength and impedance performance |
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| JPS48104072A (en) * | 1972-04-14 | 1973-12-26 | ||
| JPS60172370U (en) * | 1984-04-23 | 1985-11-15 | ティーディーケイ株式会社 | Circuit board terminal |
| US4877176A (en) * | 1987-11-25 | 1989-10-31 | Northern Telecom Limited | Soldering pins into printed circuit boards |
| JPH07226240A (en) * | 1994-02-08 | 1995-08-22 | Murata Mfg Co Ltd | Terminal and fitting structure of terminal to circuit board |
| JPH08138807A (en) * | 1994-11-15 | 1996-05-31 | Smk Corp | Six pole plug |
| JP2006190614A (en) * | 2005-01-07 | 2006-07-20 | Emuden Musen Kogyo Kk | Coaxial connector |
| JP2011086414A (en) * | 2009-10-13 | 2011-04-28 | Jst Mfg Co Ltd | L-shaped coaxial connector |
| JP2016201234A (en) * | 2015-04-09 | 2016-12-01 | ヒロセ電機株式会社 | Coaxial connector |
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| Publication number | Publication date |
|---|---|
| CN111541113A (en) | 2020-08-14 |
| CN108736277A (en) | 2018-11-02 |
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