WO2021164247A1 - 一种mmcx型射频同轴连接器及含该连接器的连接机构 - Google Patents

一种mmcx型射频同轴连接器及含该连接器的连接机构 Download PDF

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WO2021164247A1
WO2021164247A1 PCT/CN2020/116798 CN2020116798W WO2021164247A1 WO 2021164247 A1 WO2021164247 A1 WO 2021164247A1 CN 2020116798 W CN2020116798 W CN 2020116798W WO 2021164247 A1 WO2021164247 A1 WO 2021164247A1
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housing
insulator
radio frequency
frequency coaxial
mmcx
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PCT/CN2020/116798
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English (en)
French (fr)
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蔡周武
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苏州诺克斯通讯科技有限公司
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Publication of WO2021164247A1 publication Critical patent/WO2021164247A1/zh

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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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/622—Screw-ring or screw-casing
    • 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

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  • the invention belongs to the technical field of radio frequency coaxial connectors, and specifically relates to an MMCX type radio frequency coaxial connector and a connection mechanism containing the connector.
  • the conventional MMCX type RF The coaxial connector is usually a plug-in type, which cannot meet the requirements of electrical performance stability in a vibrating environment.
  • the present invention provides an improved MMCX type radio frequency coaxial connector and a connection mechanism containing the connector.
  • An MMCX type radio frequency coaxial connector comprising a first housing, an inner conductor with a jack provided in the first housing, and an inner conductor sleeved on the inner conductor and located between the inner conductor and the first housing
  • the MMCX type radio frequency coaxial connector further includes a second housing partially inserted in the first housing and a threaded sleeve that is movably sleeved on the second housing and has an internal thread inside,
  • the second housing also presses the insulator subassembly between the first housing and the second housing, and the screw sleeve also extends along the length direction of the MMCX type radio frequency coaxial connector toward the first housing. It is arranged such that the first housing is contained in the threaded sleeve, and the internal thread of the threaded sleeve is used for threaded connection with an external component.
  • the internal thread is provided on the inner wall of the front end of the threaded sleeve.
  • the second housing is inserted into the first housing from the rear end of the first housing, and an inner wall of the first housing is provided with a device for restricting the insulator subassembly to the The first limiting portion between the first shell and the second shell.
  • the outer surface of the second housing is provided with a second limiting portion for limiting the length of the second housing inserted into the first housing.
  • the second limiting portion is also used to restrict the screw sleeve from sliding toward the front end of the first housing.
  • the insulator assembly includes a first insulator and a second insulator sequentially sleeved on the inner conductor, and the first insulator and the second insulator are sequentially distributed along the length direction of the inner conductor. They are respectively located between the inner conductor and the first housing.
  • the first insulator is located behind the second insulator and the front end surface of the first insulator is in contact with the rear end surface of the second insulator.
  • a radio frequency coaxial connection mechanism comprising a first MMCX radio frequency coaxial connector and a second MMCX radio frequency coaxial connector that are used in cooperation with each other and are detachably connected, the first MMCX
  • the radio frequency coaxial connector is the aforementioned MMCX radio frequency coaxial connector
  • the second MMCX radio frequency coaxial connector has an external thread that can be screwed with the internal thread of the screw sleeve.
  • the second MMCX type radio frequency coaxial connector includes a third housing, a pin provided in the third housing, and a pin sleeved on the pin and located in the third housing And the third insulator between the pin, and the outer surface of the third housing is provided with the outer thread that can be threadedly connected with the inner thread of the screw sleeve.
  • the side surface of the front end of the third insulator is formed with a protrusion along its circumferential direction
  • the inner wall of the front end of the third housing is formed with a protrusion that can cooperate with the protrusion to restrict the first insulator.
  • the three insulators are inserted into the recessed portion of the length in the third housing.
  • the present invention has the following advantages compared with the prior art:
  • the connecting mechanism of the present invention performs threaded connection by matching the internal thread of the screw sleeve of the connector with the external thread on the other connector, realizes the further fixing of the two connectors, realizes the stability and reliability of the electrical performance, and avoids the vibration environment
  • the instability of its electrical performance is used in missile-borne, airborne and other fields.
  • FIG. 1 is a schematic diagram of a half-section structure of an MMCX-K type radio frequency coaxial connector according to a specific embodiment of the present invention
  • FIG. 2 is a schematic diagram of a half-section structure of an MMCX-J type radio frequency coaxial connector according to a specific embodiment of the present invention
  • FIG. 3 is a schematic diagram of the assembly structure of MMCX-K and MMCX-J radio frequency coaxial connectors according to a specific embodiment of the present invention
  • the MMCX type radio frequency coaxial connection mechanism shown in Figures 1 to 3 includes the MMCX-K type radio frequency coaxial connector and the MMCX-J type radio frequency coaxial connector that is used in conjunction with the MMCX-K type radio frequency coaxial connector and is detachably connected. Shaft connector.
  • the MMCX-K type radio frequency coaxial connector includes a first housing 1, an inner conductor 5 with a jack provided in the first housing 1, and a first sleeve on the inner conductor 5 in turn.
  • the insulator 2 and the second insulator 3, and the first insulator 2 and the second insulator 3 are sequentially distributed along the length direction of the inner conductor 5 and located between the inner conductor 5 and the first housing 1 respectively.
  • the first insulator 2 is located behind the second insulator 3 and the front end surface of the first insulator 2 is in contact with the rear end surface of the second insulator 3.
  • the MMCX-K type radio frequency coaxial connector also includes a second housing 4 whose front end is inserted into the rear end of the first housing 1.
  • the second housing 4 also presses the first insulator 2 and the second insulator 3 on the first housing 1.
  • Between the housing 1 and the second housing 4, on the inner wall of the first housing 1 is provided a first limiting portion for restricting the first insulator 2 and the second insulator 3 between the first housing 1 and the second housing 4 11.
  • the outer surface of the second housing 4 is provided with a second limiting portion 41 for limiting the length of the second housing 4 inserted into the first housing 1.
  • the MMCX-K radio frequency coaxial connector also includes a threaded sleeve 6 movably sleeved on the second housing 4, and the threaded sleeve 6 extends along the length of the connector toward the front end of the first housing 1, so that the first housing 1 is housed in the screw sleeve 6, and the second limiting portion 41 on the second housing 4 is also used to restrict the screw sleeve 6 from sliding toward the front end of the first housing 1.
  • the inner wall of the front end of the threaded sleeve 6 is provided with an internal thread 61 for threaded connection with external components, and the thread specification is M 3.5 ⁇ 0.35.
  • the external component is the MMCX-J radio frequency coaxial connector.
  • the MMCX-K type radio frequency coaxial connector is suitable for flexible cables with an outer diameter of 1.6 mm.
  • the MMCX-J type radio frequency coaxial connector used in conjunction with the MMCX-K type radio frequency coaxial connector in this example includes a third housing 7, a set The pin 9 in the third housing 7 and the third insulator 8 sleeved on the pin 9.
  • the third insulator 8 is located in the pin 9 and the third housing 7 and is used to fix the pin 9 to the third housing
  • the outer surface of the third housing 7 is provided with an external thread 71 that can be threadedly connected with the internal thread 61 of the screw sleeve 6 of the MMCX-K type radio frequency coaxial connector.
  • the side surface of the front end of the third insulator 8 is formed with a protrusion 81 along its circumferential direction, and the inner wall of the front end of the third housing 7 is formed with a protrusion that can cooperate with the protrusion 81 to limit the length of the third insulator 8 inserted into the third housing 7. Depression.
  • the assembly process of the MMCX-K RF coaxial connector and the flexible cable is as follows: the flexible cable passes through the second housing 4, and then the outer conductor of the flexible cable is welded to the second housing 4; after the cable core is installed with the first insulator 2 After welding with the inner conductor 5, the second insulator 3 is installed on the inner conductor 5, and the second housing 4 is pressed into the first housing 1 together, and then the screw sleeve 6 is slid onto the second housing 2.
  • the assembly process of the MMCX-J type radio frequency coaxial connector insert the pin 9 into the third insulator 8, and then press into the third shell 7 together.
  • the pin 9 of the MMCX-J type radio frequency coaxial connector is inserted into the inner conductor of the MMCX-K type radio frequency coaxial connector Then, the screw sleeve 6 and the third housing 7 are locked, and the internal thread 61 in the screw sleeve 6 is threaded with the external thread 71 on the third housing 7 to realize MMCX-K and MMCX-
  • the further fixing between the J-type radio frequency coaxial connectors ensures the reliability of the connection, thereby ensuring the stability of the electrical performance. Under the vibration environment, the MMCX-K type and MMCX-J type radio frequency coaxial connectors are not easy to separate , To avoid the instability of electrical performance under vibration environment.

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Abstract

本发明涉及一种MMCX型射频同轴连接器及含该连接器的连接机构，连接器包括第一外壳、设置在第一外壳内的具有插孔的内导体、套设在内导体上且位于内导体和第一外壳之间的绝缘子组件、部分插设在第一外壳内的第二外壳及活动套设在第二外壳上且内部具有内螺纹的螺套，第二外壳还将绝缘子组件压设在第一外壳和第二外壳之间，螺套还沿连接器的长度方向向第一外壳方向延伸设置，使得第一外壳容纳在螺套内，螺套的内螺纹用于与外界部件螺纹连接。该连接机构通过该连接器的螺套的内螺纹与另一连接器上的外螺纹的配合，进行螺纹连接，实现二个连接器的进一步固定，实现电性能的稳定、可靠，避免振动环境下的电性能的不稳定性，应用于弹载、机载等领域。

Description

一种MMCX型射频同轴连接器及含该连接器的连接机构 技术领域
本发明属于射频同轴连接器技术领域，具体涉及一种MMCX型射频同轴连接器及含该连接器的连接机构。
背景技术
随着弹载射频连接器产品的不断发展，对产品的体积、重量以及可靠性的要求越来越高，特别是产品在振动环境下的电性能稳定性的要求不断提高，常规的MMCX型射频同轴连接器通常是插拔式，其不能满足在振动环境下的电性能稳定性的要求。
发明内容
发明目的：为了解决现有技术中的不足，本发明提供一种改进的MMCX型射频同轴连接器及含该连接器的连接机构。
技术方案：为了解决上述技术问题，本发明采用如下技术方案：
一种MMCX型射频同轴连接器，包括第一外壳、设置在所述第一外壳内的具有插孔的内导体及套设在所述内导体上且位于所述内导体和第一外壳之间的绝缘子组件，所述MMCX型射频同轴连接器还包括部分插设在所述第一外壳内的第二外壳及活动套设在所述第二外壳上且内部具有内螺纹的螺套，所述第二外壳还将所述绝缘子组件压设在第一外壳和第二外壳之间，所述螺套还沿所述MMCX型射频同轴连接器的长度方向向所述第一外壳方向延伸设置，使得所述第一外壳容纳在所述螺套内，所述螺套的所述内螺纹用于与外界部件螺纹连接。
在进一步地实施方式中，所述螺套的前端内壁上设有所述内螺纹。
在进一步地实施方式中，所述第二外壳由所述第一外壳的后端插入所述第一外壳内，在所述第一外壳的内壁上设有用于将所述绝缘子组件限制在所述第一外壳和第二外壳之间的第一限位部。
在进一步地实施方式中，所述第二外壳的外表面上设有用于限制所述第二外壳插入所述第一外壳内长度的第二限位部。
在进一步地实施方式中，所述的第二限位部还用于限制所述螺套向所述第一外壳的前端方向滑动。
在进一步地实施方式中，所述绝缘子组件包括依次套设在所述内导体上的第一绝 缘子和第二绝缘子，所述第一绝缘子和第二绝缘子沿所述内导体的长度方向依次分布且分别位于所述内导体和第一外壳之间。
在进一步地实施方式中，所述第一绝缘子位于所述第二绝缘子后方且所述第一绝缘子的前端面与所述第二绝缘子的后端面相接触。
本发明采取的另一技术方案为：一种射频同轴连接机构，包括相互配合使用及可拆卸连接的第一MMCX射频同轴连接器和第二MMCX射频同轴连接器，所述第一MMCX射频同轴连接器为上述所述的MMCX射频同轴连接器，所述第二MMCX射频同轴连接器上具有能够与所述螺套的内螺纹螺纹连接的外螺纹。
在进一步地实施方式中，所述第二MMCX型射频同轴连接器包括第三外壳、设置在所述第三外壳内的插针及套设在所述插针上且位于所述第三外壳和插针之间的第三绝缘子，所述第三外壳的外表面设有能够与所述螺套的内螺纹相配合螺纹连接的所述外螺纹。
在进一步地实施方式中，所述第三绝缘子的前端的侧面沿其圆周方向形成有凸起部，所述第三外壳的前端内壁形成有能够与所述凸起部配合用于限制所述第三绝缘子插入所述第三外壳内长度的凹陷部。
由于上述技术方案运用，本发明与现有技术相比具有下列优点：
本发明连接机构通过连接器的螺套的内螺纹与另一连接器上的外螺纹的配合，进行螺纹连接，实现二个连接器的进一步固定，实现电性能的稳定、可靠，避免振动环境下的电性能的不稳定性，应用于弹载、机载等领域。
附图说明
图1为本发明一个具体实施例的MMCX-K型射频同轴连接器的半剖结构示意图；
图2为本发明一个具体实施例的MMCX-J型射频同轴连接器的半剖结构示意图；
图3为本发明一个具体实施例的MMCX-K型与MMCX-J型射频同轴连接器的装配结构示意图；
图中：1、第一外壳，11、限位部；2、第一绝缘子；3、第二绝缘子；4、第二外壳；41、第二限位部；5、内导体；6、螺套；61、内螺纹；7、第三外壳；71、外螺纹；8、第三绝缘子；81、凸起部；9、插针。
具体实施方式
以下结合说明书附图对本发明做进一步描述：
如图1～3所示的MMCX型射频同轴连接机构，包括MMCX-K型射频同轴连接器和与MMCX-K型射频同轴连接器配合使用且可拆卸连接的MMCX-J型射频同轴连接器。
如图1所示，该MMCX-K型射频同轴连接器，包括第一外壳1、设置在第一外壳1内的具有插孔的内导体5及依次套设在内导体5上的第一绝缘子2和第二绝缘子3，第一绝缘子2和第二绝缘子3沿内导体5的长度方向依次分布且分别位于内导体5和第一外壳1之间。
具体地，第一绝缘子2位于第二绝缘子3的后方且第一绝缘子2的前端面与第二绝缘子3的后端面相接触。
该MMCX-K型射频同轴连接器还包括前端插设在第一外壳1的后端内的第二外壳4，第二外壳4还将第一绝缘子2和第二绝缘子3压设在第一外壳1和第二外壳4之间，在第一外壳1的内壁上设有用于将第一绝缘子2和第二绝缘子3限制在第一外壳1和第二外壳4之间的第一限位部11，第二外壳4的外表面上设有用于限制第二外壳4插入第一外壳1内长度的第二限位部41。
该MMCX-K型射频同轴连接器还包括活动套设在第二外壳4上的螺套6，螺套6沿该连接器的长度方向向第一外壳1的前端延伸设置，使得第一外壳1容纳在螺套6内，第二外壳4上的第二限位部41还用于限制螺套6向第一外壳1的前端方向滑动。
螺套6的前端的内壁上设有用于与外界部件螺纹连接的内螺纹61，螺纹规格为M 3.5×0.35。本例中，外界部件即为MMCX-J型射频同轴连接器。
该MMCX-K型射频同轴连接器适配外径为1.6毫米的柔性电缆。
如图2所示，与本例中的MMCX-K型射频同轴连接器配合使用的MMCX-J型射频同轴连接器，该MMCX-J型射频同轴连接器包括第三外壳7、设置在第三外壳7内的插针9及套设在插针9上的第三绝缘子8，第三绝缘子8位于插针9和第三外壳7内且用于将插针9固定在第三外壳7内，在第三外壳7的外表面设有能够与MMCX-K型射频同轴连接器的螺套6的内螺纹61配合螺纹连接的外螺纹71。
第三绝缘子8前端的侧面沿其圆周方向形成有凸起部81，第三外壳7的前端的内壁形成有能够与凸起部81配合用于限制第三绝缘子8插入第三外壳7内长度的凹陷部。
MMCX-K型射频同轴连接器与柔性电缆的装配过程为：柔性电缆穿过第二外壳 4，然后将柔性电缆的外导体与第二外壳4进行焊接；电缆芯线装上第一绝缘子2后与内导体5进行焊接，然后在内导体5上装第二绝缘子3后，与第二外壳4一起压入第一外壳1内，再将螺套6滑动至套设在第二外壳2上。
MMCX-J型射频同轴连接器的装配过程：插针9装入第三绝缘子8，再一起压入第三外壳7。
MMCX-K型和MMCX-J型射频同轴连接器配合使用时，如图3所示，MMCX-J型射频同轴连接器的插针9插入MMCX-K型射频同轴连接器的内导体5的插孔内，然后将螺套6与第三外壳7锁紧，通过螺套6内的内螺纹61与第三外壳7上的外螺纹71进行螺纹连接，实现MMCX-K型和MMCX-J型射频同轴连接器之间的进一步地固定，保证连接的可靠性，从而保证电性能的稳定，振动环境下，MMCX-K型和MMCX-J型射频同轴连接器之间也不易脱离，避免振动环境下电性能的不稳定。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (13)

  1. 一种射频同轴连接机构，包括相互配合使用及可拆卸连接的第一MMCX射频同轴连接器和第二MMCX射频同轴连接器，所述第一MMCX射频同轴连接器包括第一外壳、设置在所述第一外壳内的具有插孔的内导体及套设在所述内导体上且位于所述内导体和第一外壳之间的绝缘子组件，其特征在于：所述第一MMCX射频同轴连接器还包括部分插设在所述第一外壳内的第二外壳及活动套设在所述第二外壳上且内部具有内螺纹的螺套，所述第二外壳还将所述绝缘子组件压设在第一外壳和第二外壳之间，所述螺套还沿所述第一MMCX型射频同轴连接器的长度方向向所述第一外壳方向延伸设置，使得所述第一外壳容纳在所述螺套内；
    所述螺套的前端内壁上设有所述内螺纹；
    所述绝缘子组件包括依次套设在所述内导体上的第一绝缘子和第二绝缘子，所述第一绝缘子和第二绝缘子沿所述内导体的长度方向依次分布且分别位于所述内导体和第一外壳之间，所述第一绝缘子位于所述第二绝缘子后方且所述第一绝缘子的前端面与所述第二绝缘子的后端面相接触；
    所述第二MMCX型射频同轴连接器包括第三外壳、设置在所述第三外壳内的插针及套设在所述插针上且位于所述第三外壳和插针之间的第三绝缘子，所述第三外壳的外表面设有能够与所述螺套的内螺纹相配合螺纹连接的外螺纹。
  2. 根据权利要求1所述的射频同轴连接机构，其特征在于：所述第二外壳由所述第一外壳的后端插入所述第一外壳内，在所述第一外壳的内壁上设有用于将所述绝缘子组件限制在所述第一外壳和第二外壳之间的第一限位部；所述第二外壳的外表面上设有用于限制所述第二外壳插入所述第一外壳内长度的第二限位部，所述的第二限位部还用于限制所述螺套向所述第一外壳的前端方向滑动。
  3. 根据权利要求1或2所述的射频同轴连接机构，其特征在于：所述第三绝缘子的前端的侧面沿其圆周方向形成有凸起部，所述第三外壳的前端内壁形成有能够与所述凸起部配合用于限制所述第三绝缘子插入所述第三外壳内长度的凹陷部。
  4. 一种MMCX型射频同轴连接器，包括第一外壳、设置在所述第一外壳内的具有插孔的内导体及套设在所述内导体上且位于所述内导体和第一外壳之间的绝缘子组件，其特征在于：所述MMCX型射频同轴连接器还包括部分插设在所述第一外壳内的第二外壳及活动套设在所述第二外壳上且内部具有内螺纹的螺套，所述第二外壳 还将所述绝缘子组件压设在第一外壳和第二外壳之间，所述螺套还沿所述MMCX型射频同轴连接器的长度方向向所述第一外壳方向延伸设置，使得所述第一外壳容纳在所述螺套内，所述螺套的所述内螺纹用于与外界部件螺纹连接。
  5. 根据权利要求4所述的MMCX型射频同轴连接器，其特征在于：所述螺套的前端内壁上设有所述内螺纹。
  6. 根据权利要求4所述的MMCX型射频同轴连接器，其特征在于：所述第二外壳由所述第一外壳的后端插入所述第一外壳内，在所述第一外壳的内壁上设有用于将所述绝缘子组件限制在所述第一外壳和第二外壳之间的第一限位部。
  7. 根据权利要求4所述的MMCX型射频同轴连接器，其特征在于：所述第二外壳的外表面上设有用于限制所述第二外壳插入所述第一外壳内长度的第二限位部。
  8. 根据权利要求7所述的MMCX型射频同轴连接器，其特征在于：所述的第二限位部还用于限制所述螺套向所述第一外壳的前端方向滑动。
  9. 根据权利要求4所述的MMCX型射频同轴连接器，其特征在于：所述绝缘子组件包括依次套设在所述内导体上的第一绝缘子和第二绝缘子，所述第一绝缘子和第二绝缘子沿所述内导体的长度方向依次分布且分别位于所述内导体和第一外壳之间。
  10. 根据权利要求9所述的MMCX型射频同轴连接器，其特征在于：所述第一绝缘子位于所述第二绝缘子后方且所述第一绝缘子的前端面与所述第二绝缘子的后端面相接触。
  11. 一种射频同轴连接机构，包括相互配合使用及可拆卸连接的第一MMCX射频同轴连接器和第二MMCX射频同轴连接器，其特征在于：所述第一MMCX射频同轴连接器为权利要求4～10中任一项权利要求所述的MMCX射频同轴连接器，所述第二MMCX射频同轴连接器上具有能够与所述螺套的内螺纹螺纹连接的外螺纹。
  12. 根据权利要求11所述的射频同轴连接机构，其特征在于：所述第二MMCX型射频同轴连接器包括第三外壳、设置在所述第三外壳内的插针及套设在所述插针上且位于所述第三外壳和插针之间的第三绝缘子，所述第三外壳的外表面设有能够与所述螺套的内螺纹相配合螺纹连接的所述外螺纹。
  13. 根据权利要求12所述的射频同轴连接机构，其特征在于：所述第三绝缘子的前端的侧面沿其圆周方向形成有凸起部，所述第三外壳的前端内壁形成有能够与所述凸起部配合用于限制所述第三绝缘子插入所述第三外壳内长度的凹陷部。
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