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JP2004228021A - F-type connector - Google Patents

F-type connector Download PDF

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Publication number
JP2004228021A
JP2004228021A JP2003017216A JP2003017216A JP2004228021A JP 2004228021 A JP2004228021 A JP 2004228021A JP 2003017216 A JP2003017216 A JP 2003017216A JP 2003017216 A JP2003017216 A JP 2003017216A JP 2004228021 A JP2004228021 A JP 2004228021A
Authority
JP
Japan
Prior art keywords
contact
hole
type connector
support
insulating member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP2003017216A
Other languages
Japanese (ja)
Inventor
Shigetaka Suzuki
重孝 鈴木
Shinji Nakagawa
真志 中川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP2003017216A priority Critical patent/JP2004228021A/en
Publication of JP2004228021A publication Critical patent/JP2004228021A/en
Withdrawn legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide an F-type connector of which capacitance generated between an outer conductor and a contact is small and suitable for high-frequency equipment. <P>SOLUTION: The contact 5 of the F-type connector comprises a supported part 5a supported by a insulation member 2, a terminal part 5b which extends from one end of the supported part 5a and projects toward the outside of the outer conductor 1, a spring part 5c which extends from the other end of the supported part 5a in the insulation member 2 and has contact part 5d at the end. Openings 4e bored into the insulation member 2 between the spring part 5c and the outer conductor 1 reduces the capacitance C of that part via the openings 4e, which results in reduction of capacitance C between the contact 5 and the outer conductor 1 and provides a connector of which return loss is large when it used for high-frequency equipment. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は衛星放送受信用コンバータ等の高周波機器に使用して好適なF型コネクタに関する。
【0002】
【従来の技術】
従来のF型コネクタの図面を説明すると、図5は従来のF型コネクタの断面図、図6は従来のF型コネクタの裏面図、図7は従来のF型コネクタに係る筒状体の斜視図である。
【0003】
次に、従来のF型コネクタの構成を図5〜図7に基づいて説明すると、金属材からなる筒状の外部導体51は、中心部に孔51aを有する筒状部51bと、この筒状部51bの外周面に設けられたネジ部51cと、筒状部51bの後端部に設けられた鍔部51dと、鍔部51dの後部に設けられたカシメ部51eを有する。
【0004】
成型品からなる絶縁部材52は、支持体53と、この支持体53と別部品(別体)で形成された筒状体54とで構成されている。
そして、支持体53は、中心部に設けられた矩形状の支持孔53aと、この支持孔53aに繋がった状態で、前方部に設けられた大きめの孔53bを有し、この支持体53は、外部導体51の孔51a内の後方部において、圧入等の適宜手段により取り付けられている。
【0005】
また、筒状体54は、中心部に空間部54aを有する筒部54bと、この筒部54bの前方部を塞ぐ前壁54cと、この前壁54cの中心部に設けられた小孔54dを有し、この筒状体54は、外部導体51の孔51a内の前方部において、圧入等の適宜手段により取り付けられると共に、前壁54cによって、孔51aの前方部が塞がれた状態となっている。
【0006】
そして、支持体53と筒状体54が外部導体51の孔51a内に取り付けられた際、外部導体51の孔51aの内壁面全体が絶縁部材52を構成する支持体53と筒状体54とによって覆われた状態となっている。
【0007】
バネ性のある金属板からなるコンタクト55は、1枚の金属板が折り曲げられて互いに重ね合わされ、或いは、2枚の金属板が互いに重ね合わされて構成されてなり、支持体53に支持される支持部55aと、この支持部55aの一端側から延びる端子部55bと、支持部55aの他端側から延びるクリップ状の弾性部55cと、この弾性部55cの前方の先端部に設けられた接触部55dとを有する。
【0008】
そして、このコンタクト55は、支持部55aが支持体53の支持孔53a内に圧入等の手段により支持体53に支持されて、取り付けられている。
また、コンタクト55が支持体53に取り付けられた際、端子部55bは外部導体51外に突出すると共に、弾性部55cは、その根本部が支持体53の孔53bの内面で支持された状態で、筒状体54の空間部55a内に位置し、且つ、接触部55dは、前壁54cの小孔54dと対向した状態となっている。
【0009】
即ち、コンタクト55が絶縁部材52に取り付けられた際、外部導体51の孔51内に位置するコンタクト55の全周は、絶縁部材52を介して外部導体51と対向した状態となっている。(例えば、特許文献1参照)
【0010】
このような従来のF型コネクタは、図5に示すように、金属材からなるシャーシや枠体からなる取付部材56に鍔部51dを当接すると共に、取付部材56の孔56aにカシメ部51eを挿通し、このカシメ部51eをカシメて、F型コネクタが取付部材56に取り付けられる。
【0011】
また、F型コネクタが取付部材56に取り付けられた際、外部導体51は取付部材56によって接地された状態になると共に、端子部55bは、回路基板(図示せず)に接続される。
【0012】
そして、ここでは図示しないが、雄型コネクタのピン状の中心導体が筒状体54の小孔54dに挿通されて、接触部55dに接続されると共に、雄型コネクタの外部導体がF型コネクタのネジ部51cにネジ合わされて、F型コネクタの外部導体51に接続された状態となる。
【0013】
また、図8は、F型コネクタを衛星放送受信用コンバータに使用した場合の等価回路図で、この等価回路図に示すように、マッチング回路Mには、コンタクト55の端子部55bが接続され、コンタクト55の長さによってL成分(インダクタンス成分)が存在すると共に、接地された外部導体51とコンタクト55との間には、容量Cが存在した状態で、接触部55dから950〜2150MHzの広い帯域の信号が導出されるようになっている。
【0014】
しかし、従来のF型コネクタは、上述したように、外部導体51の孔51a内に位置するコンタクト55の全周は、絶縁部材52を介して外部導体51と対向した状態となっているため、コンタクト55と外部導体51との間で形成される容量Cが大きくなり、その結果、マッチング(リターンロスが小さい)がとれないものであった。
【0015】
また、コンタクト55と外部導体51との間で形成される容量Cが大きいため、プリント基板上に形成されたマッチング回路M側での調整も不可能であった。
【0016】
【特許文献1】
実開平5−84069号公報
【0017】
【発明が解決しようとする課題】
従来のF型コネクタは、外部導体51の孔51内に位置するコンタクト55の全周が絶縁部材52を介して外部導体51と対向した状態となっているため、コンタクト55と外部導体51との間で形成される容量Cが大きくなり、その結果、マッチング(リターンロスが小さい)がとれないという問題がある。
また、また、コンタクト55と外部導体51との間で形成される容量Cが大きいため、プリント基板上に形成されたマッチング回路M側での調整も不可能であるという問題がある。
【0018】
そこで、本発明は外部導体とコンタクト間で形成される容量が小さく、高周波機器に使用して好適なF型コネクタを提供することを目的とする。
【0019】
【課題を解決するための手段】
上記課題を解決するための第1の解決手段として、金属材からなる筒状の外部導体と、この外部導体内に配設された絶縁部材と、この絶縁部材内に配設されたバネ性のある金属板で形成されたコンタクトとを備え、前記コンタクトは、前記絶縁部材に支持された支持部と、前記外部導体外に突出するように、前記支持部の一端側から延びる端子部と、前記絶縁部材内に位置した状態で前記支持部の他端側から延び、先端部に接触部を設けた弾性部とを有し、前記弾性部と前記外部導体との間に介在する前記絶縁部材に孔を設けた構成とした。
【0020】
また、第2の解決手段として、前記孔を複数個設けた構成とした。
また、第3の解決手段として、前記孔は、前記弾性部の板面と対向する位置に設けられた構成とした。
【0021】
また、第4の解決手段として、前記絶縁部材は、前記コンタクトを支持する支持体と、この支持体と別体に形成され、前記孔を設けた筒状体とで構成され、前記筒状体が前記弾性部と前記外部導体との間に介在した構成とした。
また、第5の解決手段として、前記筒状体は、この筒状体の軸方向に分割された2部品で構成された。
【0022】
【発明の実施の形態】
本発明のF型コネクタの図面を説明すると、図1は本発明のF型コネクタの断面図、図2は本発明のF型コネクタの裏面図、図3は本発明のF型コネクタに係る筒状体の斜視図、図4は本発明のF型コネクタの他の実施例に係る筒状体の斜視図である。
【0023】
次に、本発明のF型コネクタの構成を図1〜図3に基づいて説明すると、金属材からなる筒状の外部導体1は、中心部に孔1aを有する筒状部1bと、この筒状部1bの外周面に設けられたネジ部1cと、筒状部1bの後端部に設けられた鍔部1dと、鍔部1dの後部に設けられたカシメ部1eを有する。
【0024】
成型品からなる絶縁部材2は、支持体3と、この支持体3と別部品(別体)で形成された筒状体4とで構成されている。
そして、支持体3は、中心部に設けられた矩形状の支持孔3aと、この支持孔3aに繋がった状態で、前方部に設けられた大きめの孔3bを有し、この支持体3は、外部導体51の孔1a内の後方部において、圧入等の適宜手段により取り付けられている。
【0025】
また、筒状体4は、中心部に空間部4aを有する筒部4bと、この筒部4bの前方部を塞ぐ前壁4cと、この前壁4cの中心部に設けられた小孔4dと、筒部4bに対向して設けられた2個の孔4eとを有し、この筒状体4は、外部導体1の孔1a内の前方部において、圧入等の適宜手段により取り付けられると共に、前壁4cによって、孔1aの前方部が塞がれた状態となっている。
【0026】
そして、支持体3と筒状体4が外部導体1の孔1a内に取り付けられた際、外部導体1の孔1aの内壁面は、筒状体4に設けられた孔4eを除いて、絶縁部材2を構成する支持体3と筒状体4とによって覆われた状態となっている。
【0027】
なお、この実施例では、支持体3と筒状体4が別体に設けられたもので説明したが、支持体3と筒状体4の両者が成形加工によって一体化されものでも良い。
また、孔4eは、1個、或いは3個以上設けても良い。
【0028】
バネ性のある金属板からなるコンタクト5は、1枚の金属板が折り曲げられて互いに重ね合わされ、或いは、2枚の金属板が互いに重ね合わされて構成されてなり、支持体3に支持される支持部5aと、この支持部5aの一端側から延びる端子部5bと、支持部5aの他端側から延びるクリップ状の弾性部5cと、この弾性部5cの前方の先端部に設けられた接触部5dとを有する。
【0029】
そして、このコンタクト5は、支持部5aが支持体3の支持孔3a内に圧入等の手段により支持体3に支持されて、取り付けられている。
また、コンタクト5が支持体3に取り付けられた際、端子部5bは外部導体1外に突出すると共に、弾性部5cは、その根本部が支持体3の孔3bの内面で支持された状態で、筒状体4の空間部5a内に位置し、且つ、接触部5dは、前壁4cの小孔4dと対向した状態となっている。
【0030】
更に、コンタクト5が支持体3に取り付けられた際、筒状体4の孔4eには、弾性部5cの板面が対向した状態となって、この孔4eを挟んで、弾性部5cと外部導体1が対向すると共に、孔4eを除くコンタクト5の部分は、絶縁部材2を介して外部導体1と対向した状態となっている。
【0031】
なお、この実施例では、2枚の金属板を重ね合わせて形成されたコンタクト5で説明したが、重ね合わされていない1枚の金属板で、コンタクト5を形成しても良い。
【0032】
このような本発明のF型コネクタは、図1に示すように、金属材からなるシャーシや枠体からなる取付部材6に鍔部1dを当接すると共に、取付部材6の孔6aにカシメ部1eを挿通し、このカシメ部1eをカシメて、F型コネクタが取付部材6に取り付けられる。
【0033】
また、F型コネクタが取付部材6に取り付けられた際、外部導体1は取付部材6によって接地された状態になると共に、端子部5bは、回路基板(図示せず)に接続される。
【0034】
そして、ここでは図示しないが、雄型コネクタのピン状の中心導体が筒状体4の小孔4dに挿通されて、接触部5dに接続されると共に、雄型コネクタの外部導体がF型コネクタのネジ部1cにネジ合わされて、F型コネクタの外部導体1に接続された状態となる。
【0035】
また、図8は、F型コネクタを衛星放送受信用コンバータに使用した場合の等価回路図で、この等価回路図に示すように、マッチング回路Mには、コンタクト5の端子部5bが接続され、コンタクト5の長さによってL成分(インダクタンス成分)が存在すると共に、接地された外部導体1とコンタクト5との間には、容量Cが存在した状態で、接触部5dから950〜2150MHzの広い帯域の信号が導出されるようになっている。
【0036】
そして、本発明のF型コネクタは、上述したように、外部導体1の孔1a内に位置するコンタクト5は、一部が孔4eを挟んで外部導体1に対向すると共に、孔4eを除く部分が絶縁部材2を介して外部導体1と対向した状態となっている。
【0037】
従って、コンタクト5と外部導体1との間で形成される容量Cは、孔4eを挟んで対向する部分において、従来のものよりも容量Cを小さくできるため、全体としての容量Cが小さくなり、その結果、マッチング(リターンロスが大きい)のとれたものが得られる。
【0038】
また、コンタクト5と外部導体1との間で形成される容量Cが小さいため、プリント基板上に形成されたマッチング回路M側での調整も可能となる。
【0039】
また、図4は本発明のF型コネクタの他の実施例に係る筒状体を示し、この他の実施例は、筒状体4が軸方向に分割された2部品で構成され、この2部品を組み合わせて、1つの筒状体4を形成したものである。
その他の構成は、上記の実施例と同様であるので、同一部品に同一番号を付し、ここではその説明を省略する。
【0040】
このように、筒状体4を2部品で構成すると、孔4eの大きの異なる半製品(2部品の内の1部品)を数種類用意し、孔4eの同種類の半製品の組合せや孔4eの異なる半製品の組合せによって、種々の孔4eが選択できて、融通性のあるものが得られる。
【0041】
【発明の効果】
本発明のF型コネクタは、金属材からなる筒状の外部導体と、この外部導体内に配設された絶縁部材と、この絶縁部材内に配設されたバネ性のある金属板で形成されたコンタクトとを備え、コンタクトは、絶縁部材に支持された支持部と、外部導体外に突出するように、支持部の一端側から延びる端子部と、絶縁部材内に位置した状態で支持部の他端側から延び、先端部に接触部を設けた弾性部とを有し、弾性部と外部導体との間に介在する絶縁部材に孔を設けた構成とした。
このような構成によって、コンタクトと外部導体との間で形成される容量Cは、孔を挟んで対向する部分での容量が小さくなって、従来のものよりも容量Cを小さくでき、このため、高周波機器に使用した場合において、マッチング(リターンロスが大きい)のとれたものが提供できる。
また、コンタクトと外部導体との間で形成される容量Cが小さいため、プリント基板上に形成されたマッチング回路M側での調整が可能なものが得られる。
【0042】
また、孔を複数個設けたため、容量Cの一層小さなものが得られて、リターンロスの大きなものが得られる。
【0043】
また、孔は、弾性部の板面と対向する位置に設けられたため、容量Cの一層小さなものが得られて、リターンロスの大きなものが得られる。
【0044】
また、絶縁部材は、コンタクトを支持する支持体と、この支持体と別体に形成され、孔を設けた筒状体とで構成され、筒状体が弾性部と外部導体との間に介在したため、特に、孔を有した筒状体の成形加工が容易となり、生産性の良好なものが得られる。
【0045】
また、筒状体は、この筒状体の軸方向に分割された2部品で構成されたため、孔の大きの異なる半製品(2部品の内の1部品)を数種類用意すれば、半製品の組合せによって、種々の孔が選択できて、融通性のあるものが得られる。
【図面の簡単な説明】
【図1】本発明のF型コネクタの断面図。
【図2】本発明のF型コネクタの裏面図。
【図3】本発明のF型コネクタに係る筒状体の斜視図。
【図4】本発明のF型コネクタの他の実施例に係る筒状体の斜視図。
【図5】従来のF型コネクタの断面図。
【図6】従来のF型コネクタの裏面図。
【図7】従来のF型コネクタに係る筒状体の斜視図。
【図8】F型コネクタを衛星放送受信用コンバータに使用した場合の等価回路図。
【符号の説明】
1 外部導体
1a 孔
1b 筒状部
1c ネジ部
1d 鍔部
1e カシメ部
2 絶縁部材
3 支持体
3a 支持孔
3b 孔
4 筒状体
4a 空間部
4b 筒部
4c 前壁
4d 小孔
4e 孔
5 コンタクト
5a 支持部
5b 端子部
5c 弾性部
5d 接触部
6 取付部材
6a 孔
M マッチング回路
L インダクタンス成分
C 容量
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an F-type connector suitable for use in high-frequency equipment such as a converter for receiving satellite broadcasting.
[0002]
[Prior art]
FIG. 5 is a cross-sectional view of a conventional F-type connector, FIG. 6 is a rear view of the conventional F-type connector, and FIG. 7 is a perspective view of a cylindrical body of the conventional F-type connector. FIG.
[0003]
Next, the configuration of a conventional F-type connector will be described with reference to FIGS. 5 to 7. A cylindrical outer conductor 51 made of a metal material includes a cylindrical portion 51 b having a hole 51 a at a central portion, and a cylindrical outer conductor 51. It has a screw part 51c provided on the outer peripheral surface of the part 51b, a flange part 51d provided at the rear end of the tubular part 51b, and a caulking part 51e provided at the rear part of the flange part 51d.
[0004]
The insulating member 52 made of a molded product is composed of a support 53 and a tubular body 54 formed of a separate part (separate body) from the support 53.
The support body 53 has a rectangular support hole 53a provided at the center and a large hole 53b provided at the front part in a state of being connected to the support hole 53a. At the rear portion inside the hole 51a of the external conductor 51, it is attached by appropriate means such as press fitting.
[0005]
The tubular body 54 includes a tubular portion 54b having a space 54a at the center, a front wall 54c closing a front portion of the tubular portion 54b, and a small hole 54d provided at the center of the front wall 54c. The cylindrical body 54 is attached by a suitable means such as press-fitting at a front portion in the hole 51a of the external conductor 51, and the front portion of the hole 51a is closed by the front wall 54c. ing.
[0006]
When the support 53 and the cylindrical body 54 are mounted in the hole 51 a of the external conductor 51, the entire inner wall surface of the hole 51 a of the external conductor 51 forms the insulating member 52 with the support 53 and the cylindrical body 54. It is in the state covered by.
[0007]
The contact 55 made of a metal plate having a spring property is formed by bending one metal plate and overlapping each other, or by stacking two metal plates on each other. Part 55a, a terminal part 55b extending from one end of the support part 55a, a clip-like elastic part 55c extending from the other end of the support part 55a, and a contact part provided at a front end part in front of the elastic part 55c. 55d.
[0008]
The contact 55 is mounted such that the support portion 55a is supported by the support 53 by means such as press fitting into the support hole 53a of the support 53.
When the contact 55 is attached to the support 53, the terminal portion 55 b projects outside the outer conductor 51, and the elastic portion 55 c has a base portion supported by the inner surface of the hole 53 b of the support 53. The contact portion 55d is located in the space 55a of the tubular body 54, and faces the small hole 54d of the front wall 54c.
[0009]
That is, when the contact 55 is attached to the insulating member 52, the entire periphery of the contact 55 located in the hole 51 of the external conductor 51 is in a state of facing the external conductor 51 via the insulating member 52. (For example, see Patent Document 1)
[0010]
In such a conventional F-type connector, as shown in FIG. 5, a flange portion 51d abuts a mounting member 56 formed of a chassis or a frame made of a metal material, and a caulking portion 51e is inserted into a hole 56a of the mounting member 56. The F-shaped connector is attached to the attachment member 56 by inserting the caulked portion 51e.
[0011]
When the F-type connector is mounted on the mounting member 56, the external conductor 51 is grounded by the mounting member 56, and the terminal portion 55b is connected to a circuit board (not shown).
[0012]
Although not shown here, the pin-shaped central conductor of the male connector is inserted into the small hole 54d of the tubular body 54 to be connected to the contact portion 55d, and the external conductor of the male connector is connected to the F-type connector. And is connected to the external conductor 51 of the F-type connector.
[0013]
FIG. 8 is an equivalent circuit diagram when the F-type connector is used in a converter for receiving satellite broadcasting. As shown in the equivalent circuit diagram, a terminal 55b of a contact 55 is connected to the matching circuit M, An L component (inductance component) exists depending on the length of the contact 55, and a wide band of 950 to 2150 MHz from the contact portion 55d is provided between the grounded external conductor 51 and the contact 55 with the capacitance C present. Is derived.
[0014]
However, in the conventional F-type connector, as described above, the entire periphery of the contact 55 located in the hole 51a of the external conductor 51 is in a state of facing the external conductor 51 via the insulating member 52. The capacitance C formed between the contact 55 and the external conductor 51 becomes large, and as a result, matching (return loss is small) cannot be achieved.
[0015]
Further, since the capacitance C formed between the contact 55 and the external conductor 51 is large, adjustment on the side of the matching circuit M formed on the printed board is also impossible.
[0016]
[Patent Document 1]
JP-A-5-84069
[Problems to be solved by the invention]
In the conventional F-type connector, the entire circumference of the contact 55 located in the hole 51 of the external conductor 51 is in a state of facing the external conductor 51 via the insulating member 52, so that the contact 55 There is a problem that the capacitance C formed between them becomes large, and as a result, matching (return loss is small) cannot be obtained.
Further, since the capacitance C formed between the contact 55 and the external conductor 51 is large, there is a problem that adjustment on the matching circuit M side formed on the printed circuit board is impossible.
[0018]
Therefore, an object of the present invention is to provide an F-type connector suitable for use in a high-frequency device, in which the capacity formed between an external conductor and a contact is small.
[0019]
[Means for Solving the Problems]
As a first means for solving the above-mentioned problems, a cylindrical outer conductor made of a metal material, an insulating member provided in the outer conductor, and a spring-like material provided in the insulating member are provided. A contact formed of a metal plate, the contact includes a support portion supported by the insulating member, and a terminal portion extending from one end of the support portion so as to protrude outside the external conductor; An elastic portion extending from the other end side of the support portion in a state of being located in the insulating member, and having a contact portion at a distal end portion, the insulating member interposed between the elastic portion and the external conductor; It was configured to have holes.
[0020]
As a second solution, a plurality of holes are provided.
As a third solution, the hole is provided at a position facing the plate surface of the elastic portion.
[0021]
According to a fourth aspect of the present invention, the insulating member includes a support for supporting the contact, and a cylindrical body formed separately from the support and provided with the hole. Is interposed between the elastic portion and the external conductor.
As a fifth solution, the tubular body is composed of two parts divided in the axial direction of the tubular body.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a cross-sectional view of the F-type connector of the present invention, FIG. 2 is a rear view of the F-type connector of the present invention, and FIG. 3 is a tube related to the F-type connector of the present invention. FIG. 4 is a perspective view of a tubular body according to another embodiment of the F-type connector of the present invention.
[0023]
Next, the configuration of the F-type connector of the present invention will be described with reference to FIGS. 1 to 3. A cylindrical external conductor 1 made of a metal material includes a cylindrical portion 1 b having a hole 1 a at a central portion, and a cylindrical portion 1 b. It has a screw portion 1c provided on the outer peripheral surface of the shape portion 1b, a flange portion 1d provided at a rear end portion of the cylindrical portion 1b, and a caulking portion 1e provided at a rear portion of the flange portion 1d.
[0024]
The insulating member 2 made of a molded product includes a support 3 and a cylindrical body 4 formed of the support 3 and another component (separate body).
The support 3 has a rectangular support hole 3a provided in the center portion and a large hole 3b provided in the front portion in a state of being connected to the support hole 3a. At the rear portion inside the hole 1a of the external conductor 51, it is attached by appropriate means such as press fitting.
[0025]
The tubular body 4 includes a tubular portion 4b having a space 4a at the center, a front wall 4c closing a front portion of the tubular portion 4b, and a small hole 4d provided at the center of the front wall 4c. And two holes 4e provided to face the cylindrical portion 4b. The cylindrical body 4 is attached to a front portion of the outer conductor 1 in the hole 1a by appropriate means such as press-fitting. The front portion of the hole 1a is closed by the front wall 4c.
[0026]
When the support 3 and the cylindrical body 4 are mounted in the hole 1a of the external conductor 1, the inner wall surface of the hole 1a of the external conductor 1 is insulated except for the hole 4e provided in the cylindrical body 4. It is in a state of being covered by the support 3 and the cylindrical body 4 that constitute the member 2.
[0027]
In this embodiment, the support 3 and the cylindrical body 4 are described as being provided separately, but both the support 3 and the cylindrical body 4 may be integrated by molding.
Further, one or three or more holes 4e may be provided.
[0028]
The contact 5 made of a metal plate having a spring property is formed by bending one metal plate and overlapping each other, or by stacking two metal plates on each other. Part 5a, a terminal part 5b extending from one end of the support part 5a, a clip-like elastic part 5c extending from the other end of the support part 5a, and a contact part provided at a front end part of the front of the elastic part 5c. 5d.
[0029]
The contact 5 is mounted such that the support portion 5a is supported by the support 3 by means such as press fitting into the support hole 3a of the support 3.
When the contact 5 is attached to the support 3, the terminal 5 b protrudes out of the outer conductor 1, and the elastic portion 5 c has its root portion supported by the inner surface of the hole 3 b of the support 3. The contact portion 5d is located in the space 5a of the cylindrical body 4 and faces the small hole 4d of the front wall 4c.
[0030]
Further, when the contact 5 is attached to the support 3, the plate surface of the elastic portion 5 c faces the hole 4 e of the cylindrical body 4, and the elastic portion 5 c is The conductor 1 faces and the contact 5 except for the hole 4 e faces the external conductor 1 via the insulating member 2.
[0031]
In this embodiment, the description has been made of the contact 5 formed by superposing two metal plates. However, the contact 5 may be formed by one non-superposed metal plate.
[0032]
As shown in FIG. 1, the F-type connector of the present invention has a flange 1d in contact with a mounting member 6 formed of a chassis or frame made of a metal material, and a caulking portion 1e in a hole 6a of the mounting member 6. The F-shaped connector is mounted on the mounting member 6 by caulking the caulked portion 1e.
[0033]
When the F-type connector is mounted on the mounting member 6, the external conductor 1 is grounded by the mounting member 6, and the terminal portion 5b is connected to a circuit board (not shown).
[0034]
Although not shown here, the pin-shaped central conductor of the male connector is inserted into the small hole 4d of the tubular body 4 to be connected to the contact portion 5d, and the external conductor of the male connector is connected to the F-type connector. And is connected to the external conductor 1 of the F-type connector.
[0035]
FIG. 8 is an equivalent circuit diagram when the F-type connector is used for a converter for receiving satellite broadcasting. As shown in this equivalent circuit diagram, the matching circuit M is connected to the terminal 5b of the contact 5; There is an L component (inductance component) depending on the length of the contact 5 and a wide band of 950-2150 MHz from the contact portion 5d in a state where a capacitance C exists between the grounded outer conductor 1 and the contact 5. Is derived.
[0036]
As described above, in the F-type connector of the present invention, the contact 5 located in the hole 1a of the external conductor 1 partially faces the external conductor 1 with the hole 4e interposed therebetween, and has a portion excluding the hole 4e. Are in a state of facing the external conductor 1 via the insulating member 2.
[0037]
Therefore, the capacitance C formed between the contact 5 and the external conductor 1 can be made smaller than that of the conventional one at the portion opposed to the hole 4e with the hole 4e interposed therebetween. As a result, a matched (large return loss) product is obtained.
[0038]
Further, since the capacitance C formed between the contact 5 and the external conductor 1 is small, adjustment on the matching circuit M side formed on the printed circuit board is also possible.
[0039]
FIG. 4 shows a tubular body according to another embodiment of the F-type connector of the present invention. In the other embodiment, the tubular body 4 is composed of two parts divided in the axial direction. One cylindrical body 4 is formed by combining parts.
Other configurations are the same as those of the above-described embodiment, and therefore, the same components are denoted by the same reference numerals and description thereof will be omitted.
[0040]
As described above, when the cylindrical body 4 is composed of two parts, several types of semi-finished products (one of the two parts) having different sizes of the hole 4e are prepared, and a combination of semi-finished products of the same type of the hole 4e and the hole 4e are prepared. Depending on the combination of different semi-finished products, various holes 4e can be selected and a flexible one can be obtained.
[0041]
【The invention's effect】
The F-type connector of the present invention is formed by a cylindrical outer conductor made of a metal material, an insulating member provided in the outer conductor, and a metal plate having a spring property provided in the insulating member. A contact portion, the contact portion being supported by an insulating member, a terminal portion extending from one end of the supporting portion so as to protrude outside the outer conductor, and a support portion positioned in the insulating member. The elastic member has an elastic portion extending from the other end and having a contact portion at the distal end, and a hole is provided in an insulating member interposed between the elastic portion and the external conductor.
With such a configuration, the capacitance C formed between the contact and the external conductor is smaller at the portion opposing the hole with the hole interposed therebetween, and the capacitance C can be smaller than that of the conventional one. When used in a high-frequency device, it is possible to provide a device with a high matching (high return loss).
Further, since the capacitance C formed between the contact and the external conductor is small, it is possible to obtain a capacitor that can be adjusted on the side of the matching circuit M formed on the printed circuit board.
[0042]
Further, since a plurality of holes are provided, a smaller capacitor C can be obtained and a larger return loss can be obtained.
[0043]
Further, since the hole is provided at a position facing the plate surface of the elastic portion, a smaller capacitance C can be obtained, and a larger return loss can be obtained.
[0044]
The insulating member includes a support for supporting the contact, and a cylindrical body formed separately from the support and having a hole, and the cylindrical body is interposed between the elastic portion and the external conductor. Therefore, the forming process of the cylindrical body having the holes becomes particularly easy, and a product having good productivity can be obtained.
[0045]
Further, since the cylindrical body is composed of two parts divided in the axial direction of the cylindrical body, if several types of semi-finished products (one of the two parts) having different hole sizes are prepared, the semi-finished product can be obtained. Depending on the combination, various pores can be selected and a flexible one can be obtained.
[Brief description of the drawings]
FIG. 1 is a sectional view of an F-type connector of the present invention.
FIG. 2 is a rear view of the F-type connector of the present invention.
FIG. 3 is a perspective view of a tubular body according to the F-type connector of the present invention.
FIG. 4 is a perspective view of a tubular body according to another embodiment of the F-type connector of the present invention.
FIG. 5 is a sectional view of a conventional F-type connector.
FIG. 6 is a rear view of a conventional F-type connector.
FIG. 7 is a perspective view of a tubular body according to a conventional F-type connector.
FIG. 8 is an equivalent circuit diagram when the F-type connector is used for a satellite broadcast receiving converter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 External conductor 1a Hole 1b Cylindrical part 1c Screw part 1d Flange part 1e Caulking part 2 Insulating member 3 Support body 3a Support hole 3b Hole 4 Cylindrical body 4a Space part 4b Cylindrical part 4c Front wall 4d Small hole 4e Hole 5 Contact 5a Support part 5b Terminal part 5c Elastic part 5d Contact part 6 Mounting member 6a Hole M Matching circuit L Inductance component C Capacity

Claims (5)

金属材からなる筒状の外部導体と、この外部導体内に配設された絶縁部材と、この絶縁部材内に配設されたバネ性のある金属板で形成されたコンタクトとを備え、前記コンタクトは、前記絶縁部材に支持された支持部と、前記外部導体外に突出するように、前記支持部の一端側から延びる端子部と、前記絶縁部材内に位置した状態で前記支持部の他端側から延び、先端部に接触部を設けた弾性部とを有し、前記弾性部と前記外部導体との間に介在する前記絶縁部材に孔を設けたことを特徴とするF型コネクタ。A cylindrical outer conductor made of a metal material, an insulating member provided in the outer conductor, and a contact formed of a metal plate having a spring property provided in the insulating member; A supporting portion supported by the insulating member, a terminal portion extending from one end of the supporting portion so as to protrude outside the outer conductor, and a second end of the supporting portion positioned in the insulating member. An F-type connector having an elastic portion extending from a side and having a contact portion at a tip portion, wherein a hole is provided in the insulating member interposed between the elastic portion and the external conductor. 前記孔を複数個設けたことを特徴とする請求項1記載のF型コネクタ。The F-type connector according to claim 1, wherein a plurality of the holes are provided. 前記孔は、前記弾性部の板面と対向する位置に設けられたことを特徴とする請求項1、又は2記載のF型コネクタ。The F-type connector according to claim 1, wherein the hole is provided at a position facing a plate surface of the elastic portion. 前記絶縁部材は、前記コンタクトを支持する支持体と、この支持体と別体に形成され、前記孔を設けた筒状体とで構成され、前記筒状体が前記弾性部と前記外部導体との間に介在したことを特徴とする請求項1から3の何れかに記載のF型コネクタ。The insulating member includes a support for supporting the contact and a cylindrical body formed separately from the support and having the hole, and the cylindrical body includes the elastic portion and the external conductor. The F-type connector according to any one of claims 1 to 3, wherein the F-type connector is interposed between the F-type connectors. 前記筒状体は、この筒状体の軸方向に分割された2部品で構成されたことを特徴とする請求項4記載のF型コネクタ。5. The F-type connector according to claim 4, wherein the tubular body is constituted by two parts divided in the axial direction of the tubular body.
JP2003017216A 2003-01-27 2003-01-27 F-type connector Withdrawn JP2004228021A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003017216A JP2004228021A (en) 2003-01-27 2003-01-27 F-type connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003017216A JP2004228021A (en) 2003-01-27 2003-01-27 F-type connector

Publications (1)

Publication Number Publication Date
JP2004228021A true JP2004228021A (en) 2004-08-12

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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018037684A1 (en) 2016-08-23 2018-03-01 ソニーセミコンダクタソリューションズ株式会社 Coaxial connector, high-frequency unit, and reception device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018037684A1 (en) 2016-08-23 2018-03-01 ソニーセミコンダクタソリューションズ株式会社 Coaxial connector, high-frequency unit, and reception device
KR20190038566A (en) 2016-08-23 2019-04-08 소니 세미컨덕터 솔루션즈 가부시키가이샤 Coaxial connector, high frequency unit and receiver
CN109643874A (en) * 2016-08-23 2019-04-16 索尼半导体解决方案公司 Coaxial connectors, high frequency units and receivers
CN109643874B (en) * 2016-08-23 2021-03-02 索尼半导体解决方案公司 Coaxial connector, high-frequency unit, and receiving apparatus
US10944194B2 (en) 2016-08-23 2021-03-09 Sony Semiconductor Solutions Corporation Coaxial connector, high frequency unit, and receiver

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