EP2961004B1 - Koaxialer elektrischer hochfrequenzverbinder mit kontaktelement - Google Patents

Koaxialer elektrischer hochfrequenzverbinder mit kontaktelement Download PDF

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Publication number
EP2961004B1
EP2961004B1 EP14753640.3A EP14753640A EP2961004B1 EP 2961004 B1 EP2961004 B1 EP 2961004B1 EP 14753640 A EP14753640 A EP 14753640A EP 2961004 B1 EP2961004 B1 EP 2961004B1
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EP
European Patent Office
Prior art keywords
plug
socket
step hole
contact element
contact
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.)
Active
Application number
EP14753640.3A
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English (en)
French (fr)
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EP2961004A4 (de
EP2961004A1 (de
Inventor
Guilong YU
Jiwu SHAO
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.)
Shanghai Aerospace Science and Industry Appliance Co Ltd
Original Assignee
Shanghai Aerospace Science and Industry Appliance Co Ltd
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Application filed by Shanghai Aerospace Science and Industry Appliance Co Ltd filed Critical Shanghai Aerospace Science and Industry Appliance Co Ltd
Publication of EP2961004A1 publication Critical patent/EP2961004A1/de
Publication of EP2961004A4 publication Critical patent/EP2961004A4/de
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Publication of EP2961004B1 publication Critical patent/EP2961004B1/de
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Classifications

    • 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
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • the present invention relates to a radio-frequency coaxial connector, particularly a radio-frequency coaxial electric connector with a contact element, and its passive intermodulation, impedance matching, and hermetic sealing.
  • CN101656380A and CN1288805C disclose solutions to improve passive intermodulation of radio-frequency coaxial connector.
  • no so called contact element is arranged between outer conductors of a plug and a socket. Instead, an additional auxiliary nut and an elastic washer are used to keep contact surfaces of the outer conductors of the plug and the socket tightly contact with each other, so as to improve the passive intermodulation between the plug and the socket.
  • an elastic contact element shaped as an annular sleeve is provided between outer conductors of the plug and the socket, the plug and the socket tightly contact with a spiral continuous contact curve of the elastic contact element, so as to improve the passive intermodulation between the plug and the socket.
  • WO2013/104590A1 discloses a radio-frequency coaxial electric connector, its spring loaded contact elements 26 are integrated with an outer conductor of its plug, resulting in a complex structure and shape of the outer conductor of the plug, so that it is difficult to make and install the elastic contact element 26.
  • the elastic contact element 26 has to be made in just the same material as the outer conductor of the plug, and it is difficult to make the elastic contact element 26 in a different material to other portion of the outer conductor of the plug. Therefore, it is hard to lower the manufacturing cost of the outer conductor of the plug while keeping enough elastic and liable contact.
  • CN 1988285 A relates to a quick coaxial connector against a HF screw connector and discloses the preamble of independent claim 1.
  • the object of the present invention is to provide a radio-frequency coaxial electric connector, which comprises a plug and a socket, in which one of the plug and the socket is provided with an independent contact element, so as to improve the passive or the third order intermodulation when the plug is inserted into the socket.
  • WO 2012/116179 A2 discloses a lockable mating connector.
  • a radio-frequency coaxial electric connector with a contact element comprising a plug (1) and a socket (2), in which the plug (1) comprises an outer conductor (11) of the plug, an insulator (13) of the plug and an inner conductor (17) of the plug, the socket (2) comprises an outer conductor (22) of the socket, a socket dielectric body (23) and an inner conductor (24) of the socket, wherein a contact element (14) is provided between the plug outer conductor (11) and the socket outer conductor (22), the contact element (14) is cylindrical; at a front part of the contact element (14), a plurality of elastic cantilever beams are formed by dividing the contact element (14) with axial splits (142); at a rear part of the contact element (14), an annular contact ring (143) is formed; the cantilever beams of the contact element (14) are axially elongated from the contact ring (143), a radial outward annular contact (141) is provided at a front end of each
  • the contact element (14) is made of elastic copper alloy.
  • the annular contacts (141) are with lineal or surface contact with the inner wall of socket first step hole (221).
  • At least a part of said plug insulator (13) is provided within the contact element (14); and on the plug inner conductor (17), between the two ends of the plug insulator (13), there is provided with an annular inner conductor groove (171).
  • a part of the plug inner conductor (17), which is enclosed by said inner conductor groove (171), is fusiform.
  • a sealing cap (3) is threaded on the socket outer conductor (22); the sealing cap (3) is tubular, a socket sealing groove (224) is provided on the socket outer conductor (22); a second sealing ring (5) is provided within the socket sealing groove (224); a plug sealing groove (119) is provided on the plug outer conductor (11), a third sealing ring (4) is provided within the plug sealing groove (119); when said plug (1) is in engagement with said socket (2), an inner surface at one end of the sealing cap (3) presses the second sealing ring (5), while an inner surface at the other end of the sealing cap (3) presses the third sealing ring (4), so that the connector is sealed.
  • the present invention a very different structure is used with respect to prior art, so as to improve the passive intermodulation or the third order intermodulation of the radio-frequency coaxial electric connector. Moreover, according to preferred embodiments of the present invention, the impedance matching of the contactor can be made better, the contactor can be made shorter, the standing wave ratio can be made smaller, and even the sealing effect of the contactor can be improved.
  • the annular contact (141) is tightly and radially in elastic contact with the inner surface of the first step hole (221) of the socket outer conductor.
  • the annular contact (141) in a cross section passing through a central axis of the contact element (14), when an outer profile of the annular contact (141) is an arc, the annular contact (141) is tightly in elastic contact with the first step hole (221) with a circle, so that the passive intermodulation or the third order intermodulation of the radio-frequency coaxial electric connector can be greatly improved.
  • Fig. 1 in a cross section passing through a central axis of the contact element (14)
  • the plug insulator (13) is located at the rear of the contact element (14). Moreover, at least a part of the plug insulator (13) may be contained in the contact element (14), so that the plug insulator (13) used to position the plug inner conductor (17) can be moved forward, so that the contactor can be made shorter. Moreover, the annular inner conductor groove (171) are provided on the plug inner conductor (17) between the two ends of the plug insulator (13), it is good to compensate the impedance matching and make standing wave ratio smaller.
  • the annular inner conductor groove (171) of the inner conductor (17) of the plug has a greater diameter in a middle portion of the inner conductor (17) of the plug than at two ends of the inner conductor (17) of the plug, it is better to improve the impedance matching and make standing wave ratio smaller.
  • the contact element of the present invention is an independent part, and is fixed on the plug inner conductor by means of in an interference fit manner. Therefore, in the present invention, both the contact element and the plug inner conductor have a simple structure and shape, the contact element and the plug inner conductor can be made separately. Especially, the contact element can be modularized and applied. Optionally, the contact element and the plug outer conductor can be made in different materials, so it is possible to lower the manufacturing cost of the outer conductor of the plug while keeping enough elastic and liable contact.
  • a radio-frequency coaxial electric connector with a contact element of the present invention when a plug mates with a socket, a similar quick connecting mechanism works.
  • the present invention has the same idea as CN1288805C , i.e., an additional elastic contact element is provided between the plug outer conductor and the socket outer conductor.
  • the contact element 14 is shaped as a cylinder; by means of axial splits 142, a front part of the cylinder is divided into a plurality of elastic cantilever beams, and a rear part of the contact element 14 is an annular contact ring 143.
  • the cantilever beams of the contact element 14 are axially elongated from the contact ring 143.
  • annular contact 141 At a front end of each cantilever beam, there is provided an annular contact 141 which projects radially outward.
  • the contact element 14 is axially provided between the plug outer conductor 11 and the socket outer conductor 22.
  • the contact ring 143 located at rear of the contact element 14 is fixed in an interference fit manner within the plug first step hole 113 of the plug outer conductor 11.
  • the annular contacts 141 arranged at front part of the elastic cantilever beams are inserted into the socket first step hole 221 of the socket outer conductor 22, and are in tightly elastic contact with an inner wall of the socket first step hole 221.
  • the contact element 14 can be made of a metal, such as a suitable kind of copper alloy.
  • a socket 3 of a radio-frequency coaxial electric connector with a contact element comprises an outer conductor 22 of the socket, a dielectric body 23 of the socket, and an inner conductor 24 of the socket.
  • a plug 1 of a radio-frequency coaxial electric connector with a contact element according to the present invention comprises an outer conductor 11 of the plug, an insulator 13 of the plug, and an inner conductor 17 of the plug.
  • a plug second step hole 114 is provided at rear of the plug first step hole 113.
  • a plug third step hole 112 and a plug fourth step hole 111 are provided one after another.
  • An outer diameter of the plug fourth step hole 111 is greater than that of the plug third step hole 112.
  • An outer diameter of the plug third step hole 112 is greater than that of the plug first step hole 113.
  • An outer diameter of the plug first step hole 113 is greater than that of the plug second step hole 114.
  • the plug first step hole 113 is used for fixing the contact element 14, and keeping the contact element 14 in tight and steady electric contact with the plug outer conductor 11.
  • the plug second step hole 114 is used for containing and fixing the plug insulator 13.
  • the plug third step hole 112 is used for contacting the contact ring 143 of the contact element 14 in an interference fit manner.
  • the plug fourth step hole 111 is used for receiving a part of the socket outer conductor 22.
  • the plug insulator 13 is at least partially contained within the contact element 14, instead of at rear of the contact element 14 as shown in Fig. 4 .
  • an annular inner conductor groove 171 is provided on plug inner conductor 17 and between the two ends of the plug insulator 13.
  • a portion of the plug inner conductor 17 which is enclosed by the inner conductor groove 171 has greater diameter in a middle and smaller diameter at two ends, so as to make impedance matching better.
  • a sealing structure of the radio-frequency coaxial electric connector in which a sealing cap 3 is threaded on the socket outer conductor 22; the sealing cap 3 is tubular, a socket sealing groove 224 is provided on the socket outer conductor 22; a second sealing ring 5 is provided within the socket sealing groove 224; a plug sealing groove 119) is provided on the plug outer conductor 11, a third sealing ring 4 is provided within the plug sealing groove 119; when said plug 1 locks said socket 2, an inner surface at one end of the sealing cap 3 presses the second sealing ring 5, while an inner surface at the other end of the sealing cap 3 presses the third sealing ring 4, so that the connector is sealed.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (6)

  1. Elektrischer Hochfrequenz-Koaxialverbinder mit einem Kontaktelement, umfassend einen Stecker (1) und eine Buchse (2), wobei der Stecker (1) einen Steckeraußenleiter (11), einen Steckerisolator (13) und einen Steckerinnenleiter (17) umfasst, die Buchse (2) einen Buchsenaußenleiter (22), einen Buchsendielektrikumskörper (23) und einen Buchseninnenleiter (24) umfasst, wobei zwischen dem Steckeraußenleiter (11) und dem Buchsenaußenleiter (22) ein Kontaktelement (14) vorgesehen ist und das Kontaktelement (14) zylindrisch ist; an einem vorderen Teil des Kontaktelements (14) ist das Kontaktelement (14) in mehrere elastische Ausleger mit axialen Schnittnuten (142) unterteilt; an einem hinteren Teil des Kontaktelements (14) ist ein ringförmiger Kontaktring (143) ausgebildet; die Ausleger des Kontaktelements (14) erstrecken sich axial von dem Kontaktring (143) aus, ein radial äußerer ringförmiger Kontakt (141) ist an einem vorderen Ende jedes der Ausleger vorgesehen, wobei in einem Querschnitt, der durch eine Mittelachse des Kontaktelements (14) verläuft, ein äußeres Profil des ringförmigen Kontakts (141) ein Bogen oder eine Linie ist; der Kontaktring (143) ist am hinteren Teil des Kontaktelementes (14) in einer im Steckeraußenleiter (11) vorgesehenen Steckererststufenbohrung (113) in einer Presspassung fixiert, die ringförmigen Kontakte (141) am vorderen Teil der elastischen Ausleger sind in den Buchsenaußenleiter (22) eingesetzt und stehen mit einer Innenwand einer Buchsenerstufenbohrung (221) des Buchsenaußenleiters (22) eng und radial in elektrischem Kontakt, dadurch gekennzeichnet, dass an der Rückseite der Steckererststufenbohrung (113) eine Steckerzweitstufenbohrung (114) vorgesehen ist; an der Vorderseite der Steckererststufenbohrung (113) sind nacheinander eine Steckerdrittstufenbohrung (112) und eine Steckerviertstufenbohrung (111) vorgesehen; ein Außendurchmesser der Steckerviertstufenbohrung (111) ist größer als ein Außendurchmesser der Steckerdrittstufenbohrung (112), der Außendurchmesser der Steckerdrittstufenbohrung (112) ist größer als ein Außendurchmesser der Steckererststufenbohrung (113); der Außendurchmesser der Steckererststufenbohrung (113) ist größer ist als ein Außendurchmesser der Steckerzweitstufenbohrung (114); und die Steckerzweitstufenbohrung (114) enthält und fixiert den Steckerisolator (13).
  2. Elektrischer Hochfrequenz-Koaxialverbinder nach Anspruch 1, dadurch gekennzeichnet, dass das Kontaktelement (14) aus einer elastischen Kupferlegierung hergestellt ist.
  3. Elektrischer Hochfrequenz-Koaxialverbinder nach Anspruch 1, dadurch gekennzeichnet, dass die ringförmigen Kontakte (141) mit der Innenwand der Buchsenerstufenbohrung (221) in Linien- oder Flächenkontakt stehen.
  4. Elektrischer Hochfrequenz-Koaxialverbinder nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass mindestens ein Teil des Steckerisolators (13) innerhalb des Kontaktelements (14) vorgesehen ist, und daß auf dem Steckerinnenleiter (17) zwischen den beiden Enden des Steckerisolators (13) eine ringförmige Innenleiternut (171) vorgesehen ist.
  5. Elektrischer Hochfrequenz-Koaxialverbinder nach Anspruch 4, dadurch gekennzeichnet, dass ein Teil des Steckerinnenleiters (17), der von der Innenleiternut (171) umschlossen ist, spindelförmig ist.
  6. Elektrischer Hochfrequenz-Koaxialverbinder nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass auf den Buchsenaußenleiter (22) eine Dichtkappe (3) aufgeschraubt ist; die Dichtkappe (3) ist rohrförmig, auf dem Buchsenaußenleiter (22) ist eine Buchsendichtnut (224) vorgesehen; innerhalb der Buchsendichtnut (224) ist ein zweiter Dichtring (5) vorgesehen; eine Steckerdichtnut (119) ist auf dem Steckeraußenleiter (11) vorgesehen, ein dritter Dichtungsring (4) ist innerhalb der Steckerdichtnut (119) vorgesehen; wenn der Stecker (1) in Eingriff mit der Buchse (2) ist, drückt eine Innenfläche an einem Ende der Dichtungskappe (3) den zweiten Dichtungsring (5), während eine Innenfläche an dem anderen Ende der Dichtungskappe (3) den dritten Dichtungsring (4) drückt, so dass der Verbinder abgedichtet ist.
EP14753640.3A 2013-02-21 2014-02-13 Koaxialer elektrischer hochfrequenzverbinder mit kontaktelement Active EP2961004B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310055102.9A CN103117469B (zh) 2013-02-21 2013-02-21 一种具有接触元件的射频同轴电连接器
PCT/CN2014/072054 WO2014127708A1 (zh) 2013-02-21 2014-02-13 一种具有接触元件的射频同轴电连接器

Publications (3)

Publication Number Publication Date
EP2961004A1 EP2961004A1 (de) 2015-12-30
EP2961004A4 EP2961004A4 (de) 2017-01-25
EP2961004B1 true EP2961004B1 (de) 2021-05-05

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CN (1) CN103117469B (de)
WO (1) WO2014127708A1 (de)

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CN106025666B (zh) * 2016-06-28 2018-06-22 陕西华达科技股份有限公司 一种盲配型连接器的界面结构
CN109038128A (zh) * 2018-07-16 2018-12-18 镇江市华展电子科技有限公司 高互调射频同轴连接器
CN108736203B (zh) * 2018-07-28 2024-05-17 中国电子科技集团公司第四十研究所 一种高性能浮动盲插型射频同轴连接器
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CN109672039A (zh) * 2019-01-09 2019-04-23 吴通控股集团股份有限公司 一种射频同轴连接器
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Publication number Publication date
CN103117469B (zh) 2016-08-03
EP2961004A4 (de) 2017-01-25
CN103117469A (zh) 2013-05-22
EP2961004A1 (de) 2015-12-30
WO2014127708A1 (zh) 2014-08-28

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