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WO2015192382A1 - 移腔体滤波器及连接器组件 - Google Patents

移腔体滤波器及连接器组件 Download PDF

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Publication number
WO2015192382A1
WO2015192382A1 PCT/CN2014/080436 CN2014080436W WO2015192382A1 WO 2015192382 A1 WO2015192382 A1 WO 2015192382A1 CN 2014080436 W CN2014080436 W CN 2014080436W WO 2015192382 A1 WO2015192382 A1 WO 2015192382A1
Authority
WO
WIPO (PCT)
Prior art keywords
outer conductor
cavity
connecting sleeve
connector
conductor
Prior art date
Application number
PCT/CN2014/080436
Other languages
English (en)
French (fr)
Inventor
徐晓亮
吴文敬
Original Assignee
深圳市大富科技股份有限公司
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 深圳市大富科技股份有限公司 filed Critical 深圳市大富科技股份有限公司
Priority to PCT/CN2014/080436 priority Critical patent/WO2015192382A1/zh
Priority to CN201480034973.5A priority patent/CN105612666B/zh
Publication of WO2015192382A1 publication Critical patent/WO2015192382A1/zh

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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials

Definitions

  • the present invention relates to the technical field of cavity filters, and in particular to a cavity filter and a connector assembly.
  • the cavity of the cavity filter and the coaxial connector are connected in two ways.
  • One is a completely split connection, that is, the coaxial connector is separately cast from the cavity, as shown in FIG.
  • the coaxial connector includes an inner conductor 700, an insulator 800, an outer conductor 900 and a connecting sleeve 600 in order from the inside to the outside, wherein the outer conductor 900 and the connecting sleeve 600 are first cast from brass, and then Made by machining.
  • it is necessary to increase the casting process of the coaxial connector and the assembly process of the connector and the cavity resulting in high manufacturing cost.
  • a gap may occur between the connector and the cavity, resulting in leakage of the radio frequency signal.
  • the coaxial connector and the cavity are completely integrated, as shown in Fig. 2, that is, the outer conductor and the connecting sleeve are integrally molded with the cavity, and the connection avoids the existence of the first connection mode. defect.
  • the outer conductor and the connecting sleeve are made of the same material as the cavity, and are made of an aluminum alloy and cannot be made of other materials.
  • the outer wall of the connecting sleeve has a locking structure fixedly connected to the other coaxial connector of the coaxial connector, and the locking mechanism is a surface with a non-flat surface such as a thread, and cannot be a flat surface.
  • the body can be used for anti-salt treatment such as dusting, and the material for manufacturing the locking mechanism - aluminum alloy has poor salt spray resistance, so the connecting sleeve is easy to corrode in salt spray environment, affecting the RF signal. Passing, which in turn affects the filtering performance of the cavity filter.
  • the embodiment of the invention provides a cavity filter and a connector assembly to solve the technical problems of complicated assembly, poor coaxiality and high cost of the cavity filter connector in the prior art.
  • an embodiment of the present invention provides a cavity filter including a cavity and a coaxial connector.
  • the coaxial connector includes an outer conductor integrally formed with the cavity, and the outer conductor is provided. There is an inner conductor, the inner conductor penetrates the cavity, the outer conductor is sleeved with a connecting sleeve made of a salt spray preventing material, and the connecting sleeve is provided with a locking mechanism, and the coaxial connector passes through the locking mechanism and interacts with each other Another coaxial connector of the male and female is fixedly connected.
  • the locking mechanism is an external thread provided on the outer surface of the connecting sleeve.
  • the salt spray resistant material for making the connecting sleeve comprises copper and/or silver.
  • the connecting portion of the outer conductor and the connecting sleeve is provided with a sealing means on a side close to the cavity.
  • the outer wall of the outer conductor is provided with a sealing groove
  • the sealing device comprises a sealing ring provided in the sealing groove
  • the outer conductor is sleeved on the outer wall of the connecting sleeve, and the connecting sleeve is screwed or interference fit with the outer conductor.
  • the connecting sleeve is sleeved on the outer wall of the outer conductor, the connecting sleeve is screwed to the outer conductor, and the outer wall of the outer conductor and the inner wall of the connecting sleeve are respectively provided with the corresponding first external thread and the first An internal thread.
  • the outer wall of the outer conductor includes at least a first connecting surface and a second connecting surface which are axially stepped toward the outer conductor, and the first connecting surface is located on a side close to the cavity, and the outer diameter is larger than the second
  • the outer diameter of the connecting surface is connected with the second connecting surface by a step surface extending radially along the outer conductor; the first external thread is disposed on the first connecting surface of the outer conductor, and the inner wall of the connecting sleeve is provided with a ring along the connecting sleeve
  • an annular clamping member is disposed between the outer conductor and the connecting sleeve, and the clamping member is fixedly connected to the outer conductor, and the end surface adjacent to the cavity side abuts the limiting boss.
  • the axial position of the connecting sleeve is defined away from the side of the cavity.
  • the end surface of the clamping member away from the cavity is provided with a notch, and the notch serves as a point of application of the clamping tool to fixedly connect the clamping member to the outer conductor.
  • the second connecting surface of the outer conductor is provided with a second external thread
  • the second external thread and the first external thread are mutually reverse-threaded
  • the clamping member is fixedly connected with the second external thread. Locknut.
  • the clamping member is a retaining ring that is connected in an interference fit with the second connecting surface.
  • the clamping member is a collar that is resiliently coupled to the second attachment surface.
  • the present invention also provides a connector assembly including a first connector and a second connector that are male and female, the first connector includes a first outer conductor, and the first outer conductor is provided with a first The inner conductor, the first outer conductor is sleeved with a first connecting sleeve made of a salt spray preventing material, the first connecting sleeve is provided with a first locking mechanism; and the second connector comprises a first inner guiding a second inner conductor in the body, a second outer conductor of the first outer conductor is sleeved, and a second connecting sleeve of the first connecting sleeve is sleeved, and the second connecting sleeve is provided with the first locking mechanism The second locking mechanism.
  • the first locking mechanism is an external thread provided on the outer surface of the first connecting sleeve.
  • the salt spray resistant material from which the first connecting sleeve is made comprises copper and/or silver.
  • the connecting region of the first outer conductor and the first connecting sleeve is provided with a sealing means on a side close to the cavity.
  • the outer conductor of the connector is integrally molded with the cavity, which reduces the separate casting process of the connector and the assembly process between the connector and the cavity, and reduces Manufacturing costs, but also avoid leakage of RF signals. Since the connecting sleeve is connected to the outer conductor separately, the connecting sleeve can be prevented from being cast by an aluminum alloy having a low salt spray resistance as the cavity, and is made of a material having high salt spray resistance such as copper or silver, thereby improving The salt spray resistance of the cavity filter.
  • FIG. 1 is a schematic structural view of a prior art cavity filter and connector split type
  • FIG. 2 is a schematic structural view of a prior art cavity filter and a connector fully integrated
  • FIG. 3 is a schematic structural view of a portion of a cavity filter according to a preferred embodiment of the present invention.
  • Figure 4 is a cross-sectional view showing the structure of a portion of the cavity filter in the embodiment of Figure 3;
  • Figure 5 is a cross-sectional view showing the integrated structure of the outer conductor and the cavity in the embodiment of Figure 3;
  • Figure 6 is a cross-sectional view showing the structure of the connecting sleeve of the embodiment of Figure 3;
  • Figure 7 is a schematic structural view of an inner conductor in the embodiment of Figure 3;
  • Figure 8 is a schematic structural view of the clamping member in the embodiment of Figure 3;
  • Figure 9 is a schematic structural view of an insulating medium in the embodiment of Figure 3.
  • FIG. 10 is a schematic structural diagram of a cavity filter according to another embodiment of the present invention.
  • Figure 11 is a cross-sectional view showing the structure of a first connector of a preferred embodiment of the connector assembly of the present invention.
  • Figure 12 is a schematic structural view of a second connection mated with Figure 11;
  • Figure 13 is a cross-sectional view showing a portion of the structure of the second connector of Figure 12;
  • FIG. 3 is a schematic structural diagram of a portion of a cavity filter according to a preferred embodiment of the present invention
  • FIG. 4 is a cross-sectional view showing a portion of a cavity filter in the embodiment of FIG.
  • the cavity 1 and the coaxial connector 2 are included.
  • the coaxial connector 2 includes an outer conductor 21 integrally formed with the cavity 1.
  • FIG. 5 is a cross-sectional view showing the integrated structure of the outer conductor and the cavity in the embodiment of FIG. 3, wherein the outer conductor 21
  • the outer wall includes at least a first connecting surface 213 and a second connecting surface 214 which are arranged in a stepwise manner toward the outer conductor 21.
  • the first connecting surface 213 is located on a side close to the cavity 1 and has an outer diameter larger than the second connection.
  • the outer diameter of the 214 surface is connected between the first connecting surface 213 and the second connecting surface 214 by a step surface 215 extending radially along the outer conductor 21, and a seal is provided on the side of the first connecting surface 213 near the cavity 1 Slot 211.
  • the first connecting surface 213 of the outer conductor 21 is provided with a first external thread 212
  • the second connecting surface 214 of the outer conductor 21 is provided with a second external thread 216, and the first and second external threads can be opposite to each other.
  • FIG. 6 is a cross-sectional view showing the structure of the connecting sleeve in the embodiment of FIG. 3.
  • the outer surface of the connecting sleeve 23 is provided with a locking mechanism 231, and the coaxial connector passes through the locking mechanism 231 and interacts with it.
  • a fixed connection is made for another male connector of the male and female.
  • the locking mechanism 231 is a second external thread. The locking mechanism can also be knurled.
  • the inner wall of the connecting sleeve 23 is provided with a first internal thread 232 adapted to the first external thread 212 for connecting the connecting sleeve 23 with the outer conductor 21, at the connecting sleeve 23 and outside
  • a sealing device 24 is provided on the side of the connecting portion of the conductor 21 adjacent to the cavity 1 to ensure the waterproof rating of the cavity filter.
  • the sealing device 24 may be a sealing ring that is disposed in the sealing groove 211 of the outer wall of the outer conductor 21.
  • the inner wall of the connecting sleeve 23 is provided with a limiting protrusion 233 protruding radially in the connecting sleeve 23, and when the connecting sleeve 23 is engaged with the outer conductor 21, the step surface 215 of the outer conductor 21 abuts the limiting convex
  • the stage 233 is positioned to define the axial position of the connecting sleeve 23 from the side close to the cavity 1.
  • the connecting sleeve 23 is made of a salt spray preventing material, and specifically may be copper, silver, an alloy having no magnetic properties or a polymer material of a polyester type.
  • FIG. 7 is a schematic structural view of the inner conductor of the embodiment of FIG. 3 .
  • the inner conductor 22 is disposed inside the outer conductor 21 and penetrates the cavity 1 .
  • the inner conductor 22 specifically includes a rod body 221 and an end portion of the rod body 221 .
  • the joint end 222 is an open cylindrical shape and is provided with a plurality of slit grooves along the axial direction to generate an elastic contact force when mated with the inner conductor contact member.
  • FIG. 8 is a schematic structural view of the clamping member in the embodiment of FIG. 3.
  • the clamping member 25 is disposed between the outer conductor 21 and the connecting sleeve 23, and the clamping member 25 is provided with the outer portion.
  • the second external thread 216 of the second connecting surface 214 of the conductor 21 cooperates with the internal thread 252.
  • the end surface of the clamping member 25 adjacent to the cavity 1 abuts the limiting boss 233 in the connecting sleeve 23 to keep away from One side of the cavity 1 defines the axial position of the connecting sleeve 23, and the stepped surface 215 abuts against the limiting boss 233 from the side close to the cavity 1, so that the axial position of the connecting sleeve 23 is completely defined.
  • the clamping member 25 is a locking nut fixedly connected to the second external thread 216, and the first external thread 212 of the second external thread 216 cooperates with the connecting sleeve 23 and the outer conductor 21 to be opposite to each other. To prevent loosening of the connecting sleeve 23.
  • the end surface of the clamping member 25 away from the cavity 1 is provided with a notch 251 as a point of application of the clamping tool to fix the clamping member 25 to the outer conductor 21.
  • connection form of the clamping member 25 and the outer conductor 21 is not limited to being connected by a mutually reversed thread connection, but may also be connected by an interference fit of the retaining ring to the second connecting surface 214, or through the elastic collar and the outer conductor.
  • the second connecting surface 214 is engaged, which is within the understanding of those skilled in the art, and details are not described herein again.
  • the coaxial connector further includes an insulating medium 26, please refer to FIG. 9.
  • FIG. 9 is a schematic structural view of the insulating medium in the embodiment of FIG. 3.
  • the insulating medium 26 has a hollow column shape and is disposed in the outer conductor 21, and the insulating medium
  • the outer wall of 26 is interference-fitted with the inner wall of the outer conductor 21;
  • the insulating medium 26 is provided with an inner hole, and the inner conductor is interference-fitted with the inner hole, and the insulating medium 26 is used for engaging the inner conductor 22 in the outer conductor 21.
  • An intermediate groove 261 for accommodating the rubber strip is further provided on the outer circumference of the insulating medium 26 to enhance the sealing effect of the coaxial connector.
  • the outer conductor of the connector is integrally molded with the cavity, which reduces the separate casting process of the connector and the assembly process between the connector and the cavity, thereby reducing the manufacturing cost and reducing the manufacturing cost. Leakage of RF signals is also avoided. Since the connecting sleeve is connected to the outer conductor separately, the connecting sleeve can be prevented from being cast by an aluminum alloy having a low salt spray resistance as the cavity, and is made of a material having high salt spray resistance such as copper or silver, thereby improving The salt spray resistance of the cavity filter is also provided. In addition, a structure for preventing the connection sleeve from being loosened by the lock nut is designed to ensure a firm connection.
  • FIG. 4 discloses one of the connection manners of the connecting sleeve and the outer conductor, that is, the connecting sleeve is sleeved on the outer wall of the outer conductor and is screwed to the outer conductor.
  • the connecting sleeve and the outer conductor in FIG. Connections such as interference fit connections, die-cast connections or elastic snaps can be used.
  • the cavity filter shown in FIG. 10 discloses another connection manner of the connection sleeve and the outer conductor.
  • the outer conductor 100 is sleeved on the outer wall of the connection sleeve 200, and the outer conductor 100 and the connection sleeve 200 threaded connection or interference fit connection.
  • the outer conductor 100 has a tubular shape, and the inner surface is provided with a limiting cavity.
  • the connecting sleeve 200 includes a connecting portion 210 and a locking portion 220 which are disposed in the axial direction, and the connecting portion 210 is connected or screwed to the limiting cavity.
  • the outer wall of the locking portion 220 is connected with the coaxial connection.
  • the external threads of another coaxial connector that are male and female.
  • the central portion of the end surface of the locking portion 220 of the connecting sleeve 200 is recessed inwardly to form an annular abutting surface. When the two coaxial connectors are locked to each other, the end surface of the outer conductor of the other coaxial connector abuts the mating surface.
  • the outer conductor of the other coaxial connector is electrically connected to the outer conductor 100 of the coaxial connector through the connecting sleeve 200 of the coaxial connector.
  • the inner wall of the connecting sleeve 200 is stepped in two steps to form a positioning card 230 extending radially along the connecting sleeve 200.
  • the connecting sleeve 200 is provided with an insulator 300 and an inner conductor 400 in the radial direction.
  • the insulator 300 is in interference fit with the inner wall of the connecting sleeve 200 and abuts against the positioning card 230.
  • the center of the insulator 300 is provided along the axis.
  • the inner conductor 400 is in an interference fit with the insulator 300 toward the extended through hole.
  • FIG. 11 is a cross-sectional view showing the structure of a first connector of a preferred embodiment of the connector assembly of the present invention
  • FIG. 12 is a view corresponding to FIG.
  • FIG. 13 is a partial cross-sectional view of the second connector of FIG. 12; wherein the connector assembly includes a first connector 3 and a second connector 4 that are male and female.
  • the first connector 3 includes a first outer conductor 31.
  • the first outer conductor 31 is provided with a first inner conductor 32.
  • the first outer conductor 31 is sleeved with a first connecting sleeve 33 made of a salt-proof material.
  • the first connecting sleeve 33 is provided with a first locking mechanism 331;
  • the second connector 4 includes a second inner conductor 41 that is inserted into the first inner conductor 32, a second outer conductor 42 that sleeves the first outer conductor 31, and a second connecting sleeve that sleeves the first connecting sleeve 33.
  • the second connecting sleeve 43 is provided with a second locking mechanism 431 that is interlocked with the first locking mechanism 331.
  • the first outer conductor 31 has a cylindrical shape, and the outer wall includes at least a first connecting surface and a second connecting surface which are arranged in a stepwise manner toward the first outer conductor 31.
  • the first connecting surface is located on the side close to the cavity.
  • the outer diameter is larger than the outer diameter of the second connecting surface, and the first connecting surface and the second connecting surface are connected by a step surface extending radially along the first outer conductor 31, on the side of the first connecting surface close to the cavity There is also a sealing groove.
  • a first external thread is disposed on the first connecting surface of the first outer conductor 31, and a second external thread is disposed on the second connecting surface of the first outer conductor 31.
  • the second external thread is the first locking mechanism 331.
  • the first and second external threads may be opposite to each other.
  • the inner wall of the first connecting sleeve 33 is provided with a first internal thread, and the first internal thread is adapted to the first external thread for connecting the first connecting sleeve 33 with the first outer conductor 31 at the first connection
  • a sealing device 5 is provided on a side of the connecting portion of the sleeve 33 and the first outer conductor 31 adjacent to the cavity to ensure the waterproof rating of the cavity filter.
  • the sealing device 5 may be a sealing ring that is disposed in a sealing groove of the outer wall of the first outer conductor 31.
  • the inner wall of the first connecting sleeve 33 is provided with a limiting protrusion protruding radially in the first connecting sleeve 33.
  • the first connecting sleeve 33 is made of a salt-proof material, specifically copper or silver, an alloy without magnetic or a polymer material such as polyester.
  • the first inner conductor 32 is disposed inside the first outer conductor 31 and penetrates the cavity.
  • the first inner conductor 32 specifically includes a rod body and a joint end disposed at an end of the rod body.
  • the joint end is a cylindrical shape with an open end. And a plurality of slit grooves along the axial direction are opened to generate an elastic contact force when the second inner conductors mated with the same, to ensure the stability of the electrical connection between the first inner conductor 32 and the second inner conductor 41.
  • the inner wall of the second outer conductor 42 is provided with a stepped surface extending in the radial direction, and the second locking mechanism 431 is a second internal thread disposed on the inner wall of the second connecting sleeve 43, when the first locking structure 331 and When the second locking structure 431 is tightened, an end surface of the first outer conductor 31 abuts a step surface of the second outer conductor 42 such that the first outer conductor 31 and the second outer conductor 42 are electrically connected .
  • the connector assembly provided by the embodiment firstly adopts the outer conductor and the cavity integrally cast molding, which reduces the processing steps and assembly processes of the connector assembly and reduces the manufacturing cost; secondly, the split sleeve and the outer conductor are separately designed. It is made of a material with high salt spray resistance such as copper or silver, which improves the salt spray resistance of the connector assembly. In addition, a structure that uses a locknut to lock the connecting sleeve is designed to ensure a firm connection.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

一种腔体滤波器及连接器组件，该腔体滤波器包括腔体（1）和同轴连接器（2），同轴连接器（2）包括与腔体（1）一体成型的外导体（21），外导体（21）内设有内导体（22），内导体（22）贯穿腔体（1），外导体（21）与用防盐雾材料制成的连接套管（23）套接，连接套管（23）上设有锁紧机构（231），同轴连接器（2）通过锁紧机构（231）和与之互为公母的另一同轴连接器固定连接。腔体滤波器中，连接器的外导体（21）与腔体（1）一体铸造成型，减少了连接器的单独铸造工序、以及连接器与腔体（1）之间的装配工序，降低了制造成本，同时也避免了射频信号的泄露。连接套管（23）与外导体（21）分体连接并采用铜或者银等防盐雾能力高的材料制成，从而提高了腔体滤波器的防盐雾能力。

Description

移腔体滤波器及连接器组件
【技术领域】
本发明涉及腔体滤波器的技术领域，具体是涉及一种腔体滤波器及连接器组件。
【背景技术】
现有技术中腔体滤波器的腔体和同轴连接器的连接方式有两种，一种是完全分体式连接，即同轴连接器与腔体分开铸造，如图1所示，腔体由铝合金铸造制成，同轴连接器由内至外依次包括内导体700、绝缘体800、外导体900和连接套筒600，其中外导体900和连接套筒600先由黄铜铸造成型，然后通过机加工而制成。这种腔体滤波器在制造过程中，需要增加同轴连接器的铸造工序、以及连接器和腔体的装配工序，导致制造成本高。同时在装配工序中，由于连接器和腔体之间的同轴度不容易保持一致，连接器和腔体之间会出现缝隙，导致射频信号的泄露。
另一种是同轴连接器和腔体完全一体化连接，如图2所示，即外导体、连接套管均与腔体一体铸造成型，这种连接方式避免了第一种连接方式存在的缺陷。但这种方案中，外导体和连接套管的制造材料只能与腔体一样，用铝合金制成，不能采用其它材料制成。而连接套管的外壁具有与该同轴连接器互为公母的另一个同轴连接器固定连接的锁紧结构，该锁紧机构为螺纹等表面不平整的结构，不能像表面平整的腔体一样可以做喷粉等防盐雾处理，而制造锁紧机构的材料——铝合金的防盐雾能力又比较差，因此连接套管很容易在盐雾环境下发生腐蚀，影响射频信号的传递，进而影响腔体滤波器的滤波性能。
【发明内容】
本发明实施例提供一种腔体滤波器及连接器组件，以解决现有技术中的腔体滤波器连接器装配复杂、同轴度差以及成本较高的技术问题。
为解决上述问题，本发明实施例提供了一种腔体滤波器，该腔体滤波器包括腔体和同轴连接器，同轴连接器包括与腔体一体成型的外导体，外导体内设有内导体，内导体贯穿腔体，外导体与用防盐雾材料制成的连接套管套接，连接套管上设有锁紧机构，同轴连接器通过锁紧机构和与之互为公母的另一同轴连接器固定连接。
根据本发明一优选实施例，该锁紧机构为设在连接套管的外表面上的外螺纹。
根据本发明一优选实施例，制造连接套管的防盐雾材料包括铜和/或银。
根据本发明一优选实施例，外导体和连接套管的连接区域靠近腔体的一侧设有密封装置。
根据本发明一优选实施例，外导体外壁设有密封槽，密封装置包括设在密封槽内的密封圈。
根据本发明一优选实施例，外导体套设在连接套管外壁，连接套管与外导体螺纹连接或者过盈配合连接。
根据本发明一优选实施例，连接套管套设在外导体的外壁，连接套管与外导体螺纹连接，外导体的外壁和连接套管的内壁分别设有相适配的第一外螺纹和第一内螺纹。
根据本发明一优选实施例，外导体的外壁至少包括朝外导体轴向呈阶梯状的第一连接面和第二连接面，第一连接面位于靠近腔体一侧，其外径大于第二连接面的外径，与第二连接面之间由沿外导体径向延伸的阶梯面连接；第一外螺纹设在外导体的第一连接面上，连接套管的内壁设有一圈沿连接套管径向内突出的限位凸台，外导体的阶梯面抵接限位凸台，从靠近腔体一侧限定连接套管的轴向位置。
根据本发明一优选实施例，外导体和连接套管之间设置有环状的卡紧件，卡紧件与外导体固定连接，其靠近腔体一侧的端面抵接限位凸台，从远离腔体一侧限定连接套管的轴向位置。
根据本发明一优选实施例，卡紧件远离腔体一侧的端面上设有缺口，缺口作为夹持工具的施力点，以将卡紧件固定连接到外导体上。
根据本发明一优选实施例，外导体的第二连接面上设有第二外螺纹，第二外螺纹和第一外螺纹互为反向螺纹，卡紧件为与第二外螺纹固定连接的防松螺母。
根据本发明一优选实施例，卡紧件为与第二连接面过盈配合连接的挡圈。
根据本发明一优选实施例，卡紧件为与第二连接面弹性连接的卡圈。
为解决上述问题，本发明还提供一种连接器组件，包括互为公母的第一连接器和第二连接器，第一连接器包括第一外导体，第一外导体里面设有第一内导体，第一外导体与用防盐雾材料制成的第一连接套管套接，第一连接套管上设有第一锁紧机构；第二连接器包括插接至第一内导体内的第二内导体，套接第一外导体的第二外导体，套接第一连接套管的第二连接套管，第二连接套管上设有与第一锁紧机构相互锁合的第二锁紧机构。
根据本发明一优选实施例，第一锁紧机构为设在第一连接套管的外表面上的外螺纹。
根据本发明一优选实施例，制造第一连接套管的防盐雾材料包括铜和/或银。
根据本发明一优选实施例，第一外导体和第一连接套管的连接区域靠近腔体的一侧设有密封装置。
相对于现有技术，本发明提供的腔体滤波器中，连接器的外导体与腔体一体铸造成型，减少了连接器的单独铸造工序、以及连接器与腔体之间的装配工序，降低了制造成本，同时也避免了射频信号的泄露。由于连接套管与外导体分体连接，连接套管可以避免与腔体一样采用防盐雾能力低的铝合金铸成，而采用铜或者银等防盐雾能力高的材料制成，从而提高了腔体滤波器的防盐雾能力。
【附图说明】
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是一种现有技术的腔体滤波器与连接器分体式的结构示意图；
图2是一种现有技术的腔体滤波器与连接器完全一体化的结构示意图；
图3是本发明一优选实施例的腔体滤波器部分结构示意图；
图4是图3实施例中的腔体滤波器部分结构剖视图；
图5是图3实施例中外导体与腔体一体结构的剖视图；
图6是图3实施例中连接套管的结构剖视图；
图7是图3实施例中内导体的结构示意图；
图8是图3实施例中卡紧件的结构示意图；
图9是图3实施例中绝缘介质的结构示意图；
图10是本发明另一实施例腔体滤波器的结构示意图；
图11是本发明连接器组件一优选实施例的第一连接器的结构剖视示意图；
图12是与图11配合的第二连接的结构示意图；以及
图13是图12中第二连接器的部分结构剖视图。
【具体实施方式】
下面结合附图和实施例，对本发明作进一步的详细描述。特别指出的是，以下实施例仅用于说明本发明，但不对本发明的范围进行限定。同样的，以下实施例仅为本发明的部分实施例而非全部实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
请一并参阅图3和图4，图3为本发明一优选实施例的腔体滤波器部分结构示意图，图4是图3实施例中的腔体滤波器部分结构剖视图，该腔体滤波器包括腔体1以及同轴连接器2。
具体而言，该同轴连接器2包括与腔体1一体成型的外导体21，请参阅图5，图5是图3实施例中外导体与腔体一体结构的剖视图，其中，该外导体21呈圆柱管状，外壁至少包括朝外导体21轴向呈阶梯状分布的第一连接面213和第二连接面214，第一连接面213位于靠近腔体1一侧，其外径大于第二连接214面的外径，第一连接面213与第二连接面214之间由沿外导体21径向延伸的阶梯面215连接，在第一连接面213的靠近腔体1一侧还设有密封槽211。
外导体21的第一连接面213上设有第一外螺纹212，外导体21的第二连接面214上设有第二外螺纹216，该第一、第二外螺纹可以互为反向。
请参阅图6，图6是图3实施例中连接套管的结构剖视图，该连接套管23的外表面设有锁紧机构231，该同轴连接器通过该锁紧机构231和与之互为公母的另一同轴连接器固定连接。在优选实施例中，该锁紧机构231为第二外螺纹。所述锁紧机构还可以为滚花。
连接套管23的内壁设有第一内螺纹232，该第一内螺纹232与第一外螺纹212相适配，用于将连接套管23与外导体21连接，在连接套管23与外导体21连接区域靠近腔体1的一侧设有密封装置24，以保证该腔体滤波器的防水等级。该密封装置24可以为密封圈，该密封圈设置在外导体21外壁的密封槽211内。
连接套管23的内壁设有一圈沿连接套管23径向内突出的限位凸台233，在连接套管23与外导体21配合时，外导体21的阶梯面215抵接该限位凸台233，以从靠近腔体1一侧限定连接套管23的轴向位置。
在优选实施例中，该连接套管23采用防盐雾材料制成，具体可以为铜、银、不具有磁性的合金或者聚酯类的高分子材料。
请参阅图7，图7是图3实施例中内导体的结构示意图，内导体22设在外导体21的内部并贯穿于腔体1，该内导体22具体包括杆体221和设于杆体221端部的接头端222，该接头端222为开口渐收的圆筒状并开设有多条沿轴线方向的缝隙槽，以便当和与之互配的内导体接触件配合时产生弹性接触力。
请一并参阅图4和图8，图8为图3实施例中卡紧件的结构示意图，卡紧件25设置在外导体21和连接套管23之间，该卡紧件25设有与外导体21第二连接面214上的第二外螺纹216配合的内螺纹252，卡紧件25的靠近腔体1一侧的端面抵接连接套管23内的限位凸台233，以从远离腔体1一侧限定连接套管23的轴向位置，再配合阶梯面215从靠近腔体1一侧抵接该限位凸台233，使连接套管23的轴向位置被完全限定。
优选地，该卡紧件25为与第二外螺纹216固定连接的防松螺母，且该第二外螺纹216与连接套管23和外导体21配合的第一外螺纹212互为反向，以防止连接套管23的松动。
其中，该卡紧件25远离腔体1一侧的端面上设有缺口251，该缺口251作为夹持工具的施力点，以将卡紧件25固定连接到外导体21上。
当然，卡紧件25与外导体21的连接形式并不限于通过互为反向的螺纹连接，还可以通过挡圈与第二连接面214过盈配合连接，或者通过弹性卡圈与外导体的第二连接面214卡接，在本领域技术人员的理解范围内，此处不再赘述。
进一步地，该同轴连接器还包括绝缘介质26，请参阅图9，图9是图3实施例中绝缘介质的结构示意图，该绝缘介质26呈空心柱状并设于外导体21内，绝缘介质26的外壁与外导体21的内壁过盈配合；绝缘介质26设有内孔，内导体与该内孔过盈配合，该绝缘介质26用于将内导体22卡接在所述外导体21内，在绝缘介质26的外周还设有用于容置橡胶条的中间槽261，以加强该同轴连接器的密封效果。
本实施例提供的腔体滤波器中，连接器的外导体与腔体一体铸造成型，减少了连接器的单独铸造工序、以及连接器与腔体之间的装配工序，降低了制造成本，同时也避免了射频信号的泄露。由于连接套管与外导体分体连接，连接套管可以避免与腔体一样采用防盐雾能力低的铝合金铸成，而采用铜或者银等防盐雾能力高的材料制成，从而提高了腔体滤波器的防盐雾能力，另外，设计了利用防松螺母对连接套管进行防松的结构，确保连接牢固。
如上所述，图4披露了连接套管与外导体的其中一种连接方式，即连接套管套设在外导体的外壁，与外导体螺纹连接，当然图4中的连接套管与外导体还可以采用过盈配合连接、压铸连接或者弹性卡接等连接方式。图10所示的腔体滤波器披露了连接套管与外导体的另一种连接方式，在本实施例中，外导体100套设在连接套管200的外壁，外导体100与连接套管200的螺纹连接或者过盈配合连接。具体而言，外导体100呈管状，且内表面设有限位腔。连接套管200包括沿轴向依次设置的连接部210和锁紧部220，该连接部210与限位腔过盈配合连接或者螺纹连接；锁紧部220的外壁设有连接与该同轴连接器互为公母的另一同轴连接器的外螺纹。连接套管200的锁紧部220端面的中部向内凹陷，形成一个环状的对接面，两个同轴连接器相互锁紧时，另一个同轴连接器外导体的端面抵接该对接面，使得另一个同轴连接器的外导体通过本同轴连接器的连接套管200与本同轴连接器的外导体100电连接。连接套管200的内壁呈两段阶梯状，形成沿连接套管200径向延伸的定位卡台230。连接套管200沿径向向内依次设有绝缘体300和内导体400，绝缘体300与所述连接套管200内壁过盈配合，并抵接所述定位卡台230，绝缘体300中央设有沿轴向延伸的通孔，内导体400与绝缘体300过盈配合。
本发明还提供一种连接器组件，请一并参阅图11-图13，图11是本发明连接器组件一优选实施例的第一连接器的结构剖视示意图，图12为与图11配合的第二连接器的结构示意图，图13是图12中第二连接器的部分结构剖视图；其中，该连接器组件包括互为公母的第一连接器3和第二连接器4。
第一连接器3包括第一外导体31，该第一外导体31内设有第一内导体32，第一外导体31与用防盐雾材料制成的第一连接套管33套接，该第一连接套管33上设有第一锁紧机构331；
第二连接器4包括插接至第一内导体32内的第二内导体41，套接第一外导体31的第二外导体42，套接第一连接套管33的第二连接套管43，该第二连接套管43上设有与第一锁紧机构331相互锁合的第二锁紧机构431。具体而言，该第一外导体31呈圆柱管状，外壁至少包括朝第一外导体31轴向呈阶梯状分布的第一连接面和第二连接面，第一连接面位于靠近腔体一侧，其外径大于第二连接面的外径，第一连接面与第二连接面之间由沿第一外导体31径向延伸的阶梯面连接，在第一连接面的靠近腔体一侧还设有密封槽。第一外导体31的第一连接面上设有第一外螺纹，第一外导体31的第二连接面上设有第二外螺纹，该第二外螺纹即为第一锁紧机构331，该第一、第二外螺纹可以互为反向。
第一连接套管33的内壁设有第一内螺纹，该第一内螺纹与第一外螺纹相适配，用于将第一连接套管33与第一外导体31连接，在第一连接套管33与第一外导体31连接区域靠近腔体的一侧设有密封装置5，以保证该腔体滤波器的防水等级。该密封装置5可以为密封圈，该密封圈设置在第一外导体31外壁的密封槽内。
第一连接套管33的内壁设有一圈沿第一连接套管33径向内突出的限位凸台，在第一连接套管33与第一外导体31配合时，第一外导体31的阶梯面抵接该限位凸台，以从靠近腔体一侧限定第一连接套管33的轴向位置。
在优选实施例中，该第一连接套管33采用防盐雾材料制成，具体可以为铜或者银、不具有磁性的合金或者像聚酯类的高分子材料。
第一内导体32设在第一外导体31的内部并贯穿于腔体，该第一内导体32具体包括杆体和设于杆体端部的接头端，该接头端为开口渐收的圆筒状并开设有多条沿轴线方向的缝隙槽，以便当与之互配的第二内导体配合时产生弹性接触力，保证第一内导体32和第二内导体41之间电连接的稳定性。
所述第二外导体42的内壁设有沿径向延伸台阶面，第二锁紧机构431为设在第二连接套管43内壁的第二内螺纹，当所述第一锁紧结构331和所述第二锁紧结构431缩紧时，所述第一外导体31的端面抵接所述第二外导体42的台阶面，使得所述第一外导体31和第二外导体42电连接。
本实施例提供的连接器组件，首先，采用外导体与腔体一体铸造成型，减少了连接器组件的加工工序和装配工序，降低了制造成本；其次，由于连接套管与外导体分体设计并采用铜或者银等防盐雾能力高的材料制成，从而提高了连接器组件的防盐雾能力，另外，设计了利用防松螺母对连接套管进行防松的结构，确保连接牢固。
以上所述仅为本发明的一种实施例，并非因此限制本发明的保护范围，凡是利用本发明说明书及附图内容所作的等效装置或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (17)

  1. 一种腔体滤波器，其特征在于，包括腔体和同轴连接器，所述同轴连接器包括与腔体一体成型的外导体，所述外导体内设有内导体，所述内导体贯穿所述腔体，所述外导体与用防盐雾材料制成的连接套管套接，所述连接套管上设有锁紧机构，所述同轴连接器通过所述锁紧机构和与之互为公母的另一同轴连接器固定连接。
  2. 根据权利要求1所述的腔体滤波器，其特征在于，所述锁紧机构为设在所述连接套管的外表面上的外螺纹。
  3. 根据权利要求1所述的腔体滤波器，其特征在于，所述制造连接套管的防盐雾材料包括铜和/或银。
  4. 根据权利要求3所述的腔体滤波器，其特征在于，所述外导体和所述连接套管的连接区域靠近所述腔体的一侧设有密封装置。
  5. 根据权利要求4所述的腔体滤波器，其特征在于，所述外导体外壁设有密封槽，所述密封装置包括设在所述密封槽内的密封圈。
  6. 根据权利要求1至5任意一项所述的腔体滤波器，其特征在于，所述外导体套设在所述连接套管外壁，所述连接套管与所述外导体螺纹连接或者过盈配合连接。
  7. 根据权利要求1至5任意一项所述的腔体滤波器，其特征在于，所述连接套管套设在所述外导体的外壁，所述连接套管与所述外导体螺纹连接，所述外导体的外壁和所述连接套管的内壁分别设有相适配的第一外螺纹和第一内螺纹。
  8. 根据权利要求7所述的腔体滤波器，其特征在于，所述外导体的外壁至少包括朝外导体轴向呈阶梯状的第一连接面和第二连接面，
    所述第一连接面位于靠近所述腔体一侧，其外径大于所述第二连接面的外径，与所述第二连接面之间由沿所述外导体径向延伸的阶梯面连接；
    所述第一外螺纹设在所述外导体的第一连接面上，所述连接套管的内壁设有一圈沿所述连接套管径向内突出的限位凸台，所述外导体的阶梯面抵接所述限位凸台，从靠近所述腔体一侧限定所述连接套管的轴向位置。
  9. 根据权利要求8所述的腔体滤波器，其特征在于，
    所述外导体和所述连接套管之间设置有环状的卡紧件，所述卡紧件与所述外导体固定连接，其靠近所述腔体一侧的端面抵接所述限位凸台，从远离所述腔体一侧限定所述连接套管的轴向位置。
  10. 根据权利要求9所述的腔体滤波器，其特征在于，
    所述卡紧件远离所述腔体一侧的端面上设有缺口，所述缺口作为夹持工具的施力点，以将所述卡紧件固定连接到所述外导体上。
  11. 根据权利要求10所述的腔体滤波器，其特征在于，
    所述外导体的第二连接面上设有第二外螺纹，所述第二外螺纹和所述第一外螺纹互为反向螺纹，所述卡紧件为与所述第二外螺纹固定连接的防松螺母。
  12. 根据权利要求10所述的腔体滤波器，其特征在于，
    所述卡紧件为与所述第二连接面过盈配合连接的挡圈。
  13. 根据权利要求10所述的腔体滤波器，其特征在于，
    所述卡紧件为与所述第二连接面弹性连接的卡圈。
  14. 一种连接器组件，包括互为公母的第一连接器和第二连接器，其特征在于：
    所述第一连接器包括第一外导体，所述第一外导体里面设有第一内导体，所述第一外导体与用防盐雾材料制成的第一连接套管套接，所述第一连接套管上设有第一锁紧机构；
    所述第二连接器包括插接至所述第一内导体内的第二内导体，套接所述第一外导体的第二外导体，套接所述第一连接套管的第二连接套管，所述第二连接套管上设有与所述第一锁紧机构相互锁合的第二锁紧机构。
  15. 根据权利要求14所述的连接器组件，其特征在于，所述第一锁紧机构为设在所述第一连接套管的外表面上的外螺纹。
  16. 根据权利要求14所述的连接器组件，其特征在于，所述制造第一连接套管的防盐雾材料包括铜和/或银。
  17. 根据权利要求14所述的连接器组件，其特征在于，所述第一外导体和所述第一连接套管的连接区域靠近所述腔体的一侧设有密封装置。
PCT/CN2014/080436 2014-06-20 2014-06-20 移腔体滤波器及连接器组件 WO2015192382A1 (zh)

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