CN111900572A - Radio frequency connector matched with ultra-flexible threaded cable for multiple waterproof intermodulation stabilization - Google Patents

Radio frequency connector matched with ultra-flexible threaded cable for multiple waterproof intermodulation stabilization Download PDF

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Publication number
CN111900572A
CN111900572A CN202010541007.XA CN202010541007A CN111900572A CN 111900572 A CN111900572 A CN 111900572A CN 202010541007 A CN202010541007 A CN 202010541007A CN 111900572 A CN111900572 A CN 111900572A
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CN
China
Prior art keywords
connector
cable
sealing
wire clamp
threaded sleeve
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Application number
CN202010541007.XA
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Chinese (zh)
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CN111900572B (en
Inventor
彭俊泉
杜如民
钟海军
戴煜军
刘小东
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Nokia Shanghai Bell Co Ltd
Shanghai Aerospace Science and Industry Appliance Co Ltd
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Nokia Shanghai Bell Co Ltd
Shanghai Aerospace Science and Industry Appliance Co Ltd
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Application filed by Nokia Shanghai Bell Co Ltd, Shanghai Aerospace Science and Industry Appliance Co Ltd filed Critical Nokia Shanghai Bell Co Ltd
Priority to CN202010541007.XA priority Critical patent/CN111900572B/en
Publication of CN111900572A publication Critical patent/CN111900572A/en
Application granted granted Critical
Publication of CN111900572B publication Critical patent/CN111900572B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/502Bases; Cases composed of different pieces
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/622Screw-ring or screw-casing

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  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The radio frequency connector comprises a rear end part of the connector, a rear wire clamp and a rear threaded sleeve, wherein the rear end part of the connector comprises a shaft sleeve, a sealing bush, the rear wire clamp and the rear threaded sleeve; the outer wall of the front end of the rear threaded sleeve is sleeved with a connector front-end component, and a shaft sleeve, a sealing bush and a rear wire clamp are sequentially arranged in the rear threaded sleeve along the axial direction; the rear end part of the rear wire clamp extends and is embedded between the cable outer sheath and the rear threaded sleeve, the rear threaded sleeve is used for extruding the rear wire clamp, sealing elements are embedded between the rear wire clamp and the rear threaded sleeve and between the rear threaded sleeve and the cable outer sheath, and the sealing elements and the rear wire clamp are used for realizing multiple water proofing; the invention has simple components and can be quickly assembled and disassembled; the front end is integral, and the shell and the connecting cable end can be waterproof, so that the waterproof sealing structure has the advantages of multiple waterproof sealing; the inner conductor, the outer conductor and the outer sheath of the threaded cable are provided with a plurality of supporting points, so that the intermodulation stability performance is met.

Description

Radio frequency connector matched with ultra-flexible threaded cable for multiple waterproof intermodulation stabilization
Technical Field
The invention belongs to the technical field of radio frequency connectors, and particularly relates to a radio frequency connector which is stable in multiple waterproof intermodulation and is used for matching super-flexible threaded cables.
Background
With the rapid development of mobile communication industry, different use scenes, particularly in the field and in complex weather conditions, the waterproof performance of the radio frequency coaxial connector of the cable assembly is very important; therefore, the antenna feeder cable with low intermodulation, high power, low loss and high reliability is greatly demanded, and particularly, the antenna feeder assembly is greatly used in a large-power base station with wide coverage area and a place with small crowd relative density. At present, the connection of an antenna feed system is operated in the field, the environment is harsh, and the operation difficulty is high; the existing connector for matching and connecting the super-flexible cable is structurally designed into a general two-point supporting structure, and after the cable is connected, the intermodulation relative stability is poor; moreover, such products are currently divided into three parts: a front housing part, a rear housing, a seal ring; in the process of cable installation, the sealing ring is required to be sleeved on the cable with the stripped wire, then the rear shell is screwed on the cable, and finally the front shell is screwed on the rear shell.
The assembly risk is easy to occur in the assembly process, the sealing ring is easy to leak when being not screwed in place, and the stability of the cable is also influenced to a certain extent; and at present still the connector adopts the cable inner conductor, the stability of intermodulation is improved to the structure of outer conductor and cable oversheath three point support, support piece internal thread and the spiral phase cooperation of cable outer conductor form the fixed stay of cable outer conductor, this structural design does not consider the cable and accomplishes the back screw thread shape in the actual processing, sometimes can have the crest department to be crowded flat and form one or more transition platforms after the actual cable processing is accomplished, because support piece internal thread and the spiral adoption of cable outer conductor are rigid extrusion fit, support the cable outer conductor unstable under this condition, can have certain rocking. Secondly, the inner hole surface of the C-shaped clamping ring is designed into a protrusion and a groove to support and fix the cable outer sheath, once the cable outer sheath is tightened by torque, the protrusion and the groove are designed into the inner hole surface of the C-shaped clamping ring to form rigid extrusion with the cable, the protrusion and the groove sink into the cable, and the cable is difficult to disassemble. Meanwhile, the structure only seals the cable outer sheath for the waterproofing of the cable end, the sealing is single, and the complete waterproof sealing cannot be realized.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the radio frequency connector which is stably connected with the ultra-flexible threaded cable in multiple waterproof intermodulation, and the specific technical scheme is as follows:
a radio frequency connector matched and connected with an ultra-flexible threaded cable in multiple waterproof intermodulation stability comprises a connector front end part; the rear end of the front end part of the connector is hermetically sleeved with the rear end part of the connector, and the rear end part of the connector comprises a shaft sleeve, a sealing bush, a rear wire clamp and a rear threaded sleeve;
the outer wall of the front end of the rear threaded sleeve is sleeved with a connector front-end component, and a shaft sleeve, a sealing bush and a rear wire clamp are sequentially arranged in the rear threaded sleeve along the axial direction; the inner wall of the shaft sleeve is provided with a first spiral groove, and the first spiral groove is used for assembling and connecting the cable outer conductor of the corrugated cable; the sealing bush is embedded into the rear end of the inner portion of the shaft sleeve, a second spiral groove matched with the cable outer conductor is formed in the inner wall of the sealing bush, the sections of the first spiral groove and the second spiral groove are both U-shaped, the second spiral groove and the first spiral groove are continuously distributed in the axial direction, and the first spiral groove and the second spiral groove are used for realizing rigid contact and flexible extrusion of a corrugated cable and the rear end part of the connector; the sealing bush is used for improving the connection sealing performance and strength of the cable outer conductor and the shaft sleeve;
the cable outer conductor is arranged in the cable outer sheath, the inner wall of the rear end of the rear threaded sleeve is attached to the outer wall of the cable outer sheath, the rear wire clamp is installed between the rear threaded sleeve and the sealing bush, the front end portion of the rear wire clamp is extended and embedded between the sealing bush and the shaft sleeve, the rear end portion of the rear wire clamp is extended and embedded between the cable outer sheath and the rear threaded sleeve, the rear threaded sleeve is used for extruding the rear wire clamp, sealing elements are embedded between the rear wire clamp and the rear threaded sleeve and between the rear threaded sleeve and the cable outer sheath, and the sealing elements and the rear wire clamp are used for achieving multiple water proofing.
Furthermore, the rear end part of the rear wire clamp is provided with a clamping sleeve, the clamping sleeve is of a groove splitting structure, a plurality of continuous arc salient points are axially distributed on the inner wall of the clamping sleeve, and the arc salient points are used for enabling the rear wire clamp to be in reliable rigid contact with the cable outer sheath.
Furthermore, the outer wall of the rear wire clamp is provided with a supporting boss, the outer wall of the supporting boss is sleeved with an annular fifth sealing ring, and the fifth sealing ring is embedded between the rear wire clamp and the rear threaded sleeve.
Further, the inner wall of the rear screw sleeve is sequentially provided with a sealing surface and an extrusion seat along the axial direction; the whole inwards protruding of extrusion seat, the extrusion seat is inwards distributed by preceding backward sloping, the laminating of extrusion seat is arranged in the outer wall of centre gripping cover, the extrusion seat is used for inwards extruding the centre gripping cover, support the boss conflict in sealed face is last, the laminating of fifth sealing washer in sealed face is last, the leading flank of support boss conflict in the rear end face of axle sleeve, the rear end face of support boss conflict in on the step face of extrusion seat.
Furthermore, the inner wall of the rear wire clamp is provided with a positioning step, the positioning step extends between the rear end face of the sealing bush and the front end face of the cable outer sheath, and the positioning step is used for stopping the cable outer sheath.
Further, an arc groove is formed in the outer wall of the front end of the rear threaded sleeve, a fourth sealing ring is embedded into the arc groove, and the fourth sealing ring is embedded into the joint of the front end component of the connector and the rear threaded sleeve; an annular groove is formed in the inner wall of the rear end of the rear threaded sleeve, a sixth sealing ring is embedded into the annular groove, and the sixth sealing ring is embedded into the joint face of the rear threaded sleeve and the cable outer sheath.
Furthermore, the front end part of the connector comprises a hexagonal screw sleeve, a connector outer conductor is fixed inside the hexagonal screw sleeve, a clamping ring is embedded in the joint surface of the hexagonal screw sleeve and the connector outer conductor, the rear end of the connector outer conductor is sleeved on the outer wall of the front end of the rear screw sleeve, a connector inner conductor is installed at the center line inside the connector outer conductor, a cable inner conductor of a corrugated cable is inserted inside the rear end of the connector inner conductor, a plurality of insulating sleeve rings are installed between the connector inner conductor and the connector outer conductor, a first sealing ring is embedded in the joint surface of the insulating sleeve ring and the connector inner conductor, a second sealing ring is embedded in the interface of the insulating sleeve ring and the connector outer conductor, and a third sealing ring is sleeved on the outer wall of the front end of the connector outer conductor.
The invention has the beneficial effects that: the connector possesses the whole waterproof sealing of front end, and waterproof sealing department includes: the waterproof sealing between the inner conductor and the insulating sleeve ring of the connector, between the insulating sleeve ring and the outer conductor of the connector and at the interface end, and the waterproof sealing between the shells, and the multiple waterproof sealing of the rear end part of the connector to the outer conductor of the cable and the outer sheath of the cable. Meanwhile, the cable outer sheath supporting part is supported by the plurality of arc convex points, so that the structure not only realizes multi-point support of the cable, but also avoids the situation that the cable is difficult to disassemble, and greatly improves the intermodulation stability of the product while the disassembly is convenient.
Drawings
FIG. 1 shows a schematic cross-sectional view of the radio frequency connector of the present invention in its entirety;
FIG. 2 is a schematic cross-sectional view of the RF connector of the present invention in connection with a corrugated cable;
fig. 3 shows a schematic view of the connector front end component structure of the present invention;
FIG. 4 shows a schematic view of the connector back end piece construction of the present invention;
FIG. 5 shows a schematic view of the bushing configuration of the present invention;
FIG. 6 shows a schematic view of the rear cleat construction of the present invention;
FIG. 7 shows a schematic of the rear insert construction of the present invention;
shown in the figure: 1. a connector front end component; 11. a hexagonal screw sleeve; 12. a first seal ring; 13. a second seal ring; 14. a third seal ring; 15. an insulating collar; 16. a collar; 17. a connector inner conductor; 18. a connector outer conductor; 2. a connector back end component; 21. a shaft sleeve; 211. a first helical groove; 22. a seal bushing; 221. a second helical groove; 23. a fourth seal ring; 24. a fifth seal ring; 25. a rear wire clamp; 251. supporting the boss; 2511. a first annular groove; 252. positioning a step; 253. a clamping sleeve; 2531. arc salient points; 26. a rear threaded sleeve; 261. an arc groove; 262. a sealing surface; 263. a pressing base; 264. a second annular groove; 27. a sixth seal ring; 3. a corrugated cable; 31. an inner conductor of the cable; 32. a cable insulator; 33. an outer conductor of the cable; 34. and a cable outer sheath.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The radio frequency connector matched with the ultra-flexible threaded cable for multiple waterproof intermodulation stabilization comprises a connector front-end part 1; the rear end of the connector front end part 1 is hermetically sleeved with a connector rear end part 2, and the connector rear end part 2 comprises a shaft sleeve 21, a sealing bush 22, a rear wire clamp 25 and a rear threaded sleeve 26;
the outer wall of the front end of the rear threaded sleeve 26 is sleeved with the connector front-end component 1, and a shaft sleeve 21, a sealing bush 22 and a rear wire clamp 25 are sequentially arranged in the rear threaded sleeve 26 along the axial direction; the inner wall of the shaft sleeve 21 is provided with a first spiral groove 211, and the first spiral groove 211 is used for assembling and connecting the cable outer conductor 33 of the corrugated cable 3; the sealing bush 22 is embedded in the rear end of the inner portion of the shaft sleeve 21, a second spiral groove 221 matched with the cable outer conductor 33 is formed in the inner wall of the sealing bush 22, the sections of the first spiral groove 211 and the second spiral groove 221 are both U-shaped, the second spiral groove 221 and the first spiral groove 211 are continuously distributed along the axial direction, and the first spiral groove 211 and the second spiral groove 221 are used for realizing rigid contact and flexible extrusion of the corrugated cable 3 and the connector rear end part 2; the sealing bush 22 is used for improving the connection tightness and strength of the cable outer conductor 33 and the shaft sleeve 21; the U-shaped spiral groove structure can be in rigid contact with wave crests of the cable outer conductor to form support by extrusion, meanwhile, the transition section with the U-shaped spiral groove structure in section is connected with a spiral structure matched with the cable outer conductor to form support by flexible extrusion with the cable outer conductor, and the rigid and flexible contact is suitable for the condition that the cable outer conductor is complete or extruded and deformed; the second thread groove adopts circular arc smooth transition, so that the sealing bush 22 is prevented from forming axial movement in the extrusion process of the cable outer conductor 33 and cutting with the connecting thread, thereby aggravating the twisting deformation of the sealing bush 22 and influencing the sealing and water proofing between the shells of the cable assembly;
the cable outer conductor 33 is arranged in the cable outer sheath 34, the inner wall of the rear end of the rear threaded sleeve 26 is attached to the outer wall of the cable outer sheath 34, the rear wire clamp 25 is installed between the rear threaded sleeve 26 and the sealing bushing 22, the front end part of the rear wire clamp 25 is extended and embedded between the sealing bushing 22 and the shaft sleeve 21, the rear end part of the rear wire clamp 25 is extended and embedded between the cable outer sheath 34 and the rear threaded sleeve 26, the rear threaded sleeve 26 is used for extruding the rear wire clamp 25, sealing elements are embedded between the rear wire clamp 25 and the rear threaded sleeve 26 and between the rear threaded sleeve 26 and the cable outer sheath 34, and the sealing elements and the rear wire clamp 25 are used for realizing multiple waterproof; the rear thread insert 26 is used for extruding the rear wire clamp 25, the rear thread insert 26 is used for extruding the cable outer sheath 34, and the rear wire clamp 25 is used for extruding the cable outer conductor 33, so that a plurality of sealing structures are formed to be flexibly extruded and deformed, and a plurality of waterproof protection structures are formed; the outer wall of the cable outer conductor 33 is fitted with a cable insulator 32.
As shown in fig. 6, the rear end portion of the rear wire clamp 25 is a clamping sleeve 253, the clamping sleeve 253 is a split-groove structure, and the clamping sleeve 253 can be expanded and deformed outwards by the cable jacket due to the split-groove structure, so that the cable outer conductor is clamped reversely and strongly, and reliable contact of the inner walls is realized.
A plurality of continuous arc salient points 2531 are axially distributed on the inner wall of the clamping sleeve 253, and the arc salient points 2531 are used for ensuring reliable rigid contact between the rear wire clamp 25 and the cable outer sheath 34; the contact position of the rear wire clamp 25 and the cable outer sheath 34 is provided with a plurality of continuous arc bumps to realize reliable rigid contact, meanwhile, the contact surface of the arc bumps is small, the reverse resistance is small during disassembly, and therefore multi-point support can be realized while the disassembly is convenient, and the intermodulation stability is improved.
A supporting boss 251 is arranged on the outer wall of the rear wire clamp 25, an annular fifth sealing ring 24 is sleeved on the outer wall of the supporting boss 251, and the fifth sealing ring 24 is embedded between the rear wire clamp 25 and the rear threaded sleeve 26; waterproof sealing between the rear wire clamp 25 and the rear threaded sleeve 26 can be realized by utilizing the extrusion deformation of the fifth sealing ring 24; the fifth sealing ring 24 is embedded in the first annular groove 2511 on the outer wall of the supporting boss 251;
the inner wall of the rear wire clamp 25 is provided with a positioning step 252, the positioning step 252 extends between the rear end face of the sealing bush 22 and the front end face of the cable outer sheath 34, and the positioning step 252 is used for stopping the cable outer sheath 34; the positioning step 252 may support and stop the outer sheath of the cable and may also limit the rear clip 25.
As shown in fig. 7, the inner wall of the rear screw sleeve 26 is provided with a sealing surface 262 and a pressing seat 263 in sequence along the axial direction; the extrusion seat 263 is integrally protruded inwards, the extrusion seat 263 is distributed inwards from front to back, the extrusion seat 263 is attached to the outer wall of the clamping sleeve 253, the extrusion seat 263 is used for inwards extruding the clamping sleeve 253, and the inclined-plane extrusion seat 263 can reversely support the clamping sleeve 253, so that the clamping sleeve 253 is also inclined-plane, and the clamping sleeve 253 has a better cable clamping and sealing effect;
the supporting boss 251 abuts against the sealing surface 262, the fifth sealing ring 24 abuts against the sealing surface 262, the front side surface of the supporting boss 251 abuts against the rear end surface of the shaft sleeve 21, and the rear end surface of the supporting boss 251 abuts against the step surface of the extrusion seat 263.
As shown in fig. 4, an arc groove 261 is formed in an outer wall of the front end of the rear nut 26, a fourth sealing ring 23 is embedded in the arc groove 261, and the fourth sealing ring 23 is embedded in an interface between the connector front end component 1 and the rear nut 26; a second annular groove 264 is formed in the inner wall of the rear end of the rear threaded sleeve 26, a sixth sealing ring 27 is embedded into the second annular groove 264, and the sixth sealing ring 27 is embedded into the joint of the rear threaded sleeve 26 and the cable outer sheath 34; the fourth seal ring 23 can increase the sealing performance between the connector front end part and the connector rear end part, and the compression deformation of the sixth seal ring 27 can improve the sealing performance between the rear screw shell 26 and the cable sheath 34.
As shown in fig. 3, the connector front end part 1 includes a hexagonal nut 11, a connector outer conductor 18 is fixed inside the hexagonal nut 11, the interface of the hexagonal nut 11 and the connector outer conductor 18 is embedded with a collar 16, the rear end of the outer connector conductor 18 is sleeved on the outer wall of the front end of the rear threaded sleeve 26, the inner connector conductor 17 is installed at the inner center line of the outer connector conductor 18, the inner part of the rear end of the connector inner conductor 17 is used for inserting the cable inner conductor 31 of the corrugated cable 3, a plurality of insulating collars 15 are mounted between the connector inner conductor 17 and the connector outer conductor 18, a first sealing ring 12 is embedded at the interface of the insulating collar 15 and the inner conductor 17 of the connector, a second sealing ring 13 is embedded in the interface between the insulating sleeve ring 15 and the connector outer conductor 18, and a third sealing ring 14 is sleeved on the outer wall of the front end of the connector outer conductor 18; the first sealing ring 12, the second sealing ring 13 and the third sealing ring 14 are extruded and deformed, so that the sealing performance of the front end part of the connector can be effectively ensured.
As shown in fig. 2 and 4, when the connector rear end part 2 is screwed on the corrugated cable 3, during the screwing process, when the cable inner conductor 31 is inserted into the connector inner conductor 17, the cable outer conductor 33 is screwed inwards along the sealing bush 22 and the shaft sleeve 21, the cable outer conductor 33 will press the flexible sealing bush 22 outwards, so that the sealing bush 22 presses the flexible rear wire clamp 25 outwards, the rear wire clamp 25 presses the fifth sealing ring 24 outwards, and finally the outwards pressing force is supported by the rear screw sleeve 26 in a reverse direction, so that the cable outer conductor 33, the sealing bush 22, the rear wire clamp 25, the fifth sealing ring 24 and the rear screw sleeve 26 are tightly attached together;
in the entering process of the cable outer sheath 34, the cable outer sheath 34 extrudes the sixth sealing ring 27 outwards, so that the cable outer sheath 34, the sixth sealing ring 27 and the rear thread sleeve 26 are tightly attached together; the cable outer sheath 34 also can extrude the clamping sleeve 253 which is obliquely arranged inwards outwards, the clamping sleeve 253 is reversely supported by the extruding seat 263, and the continuous arc salient points 2531 on the clamping sleeve 253 can be smoothly contacted with the cable outer sheath 34 and can be extruded and deformed;
when the corrugated cable is rotated to the position where the end surface of the cable outer sheath 34 is abutted against the positioning step 252 for limiting, the corrugated cable 3 can be indicated to be rotated to be in place; the cable outer sheath 34, the positioning step 252 and the wire clamp are mutually supported and abutted.
And (3) supporting the cable outer sheath: the clamping sleeve 253 and the extrusion seat 263 are extruded, so that the rear wire clamp 25 and the cable outer sheath 34 are tightly held, and meanwhile, the positioning step 252 and the cable outer sheath 34 are extruded to form multiple supports.
And (3) waterproof treatment: the first sealing ring 12 and the second sealing ring 13 in the front end part 1 of the connector respectively form extrusion with the inner wall of the insulating sleeve ring 15 and the inner wall of the outer conductor 18 of the connector to realize sealing, and the third sealing ring 14 is realized according to the interface sealing requirement;
the fourth sealing ring 23 arranged in the connector back end part 2 forms sealing by extrusion with the cable outer conductor 33, then the fifth sealing ring 24 is matched with the sealing surface 262 of the back thread sleeve 26 to form radial extrusion to achieve double sealing effect, and the sixth sealing ring 27 and the cable outer sheath 34 form radial extrusion, so that multiple waterproof sealing of the cable is realized; the fourth sealing ring 23 forms radial extrusion with the end face of the connector outer conductor 18, so that waterproof sealing between the shells is realized.
The invention has simple components and can be quickly assembled and disassembled; the front end is integral, and the shell and the connecting cable end can be waterproof, so that the waterproof sealing structure has the advantages of multiple waterproof sealing; the inner conductor, the outer conductor and the outer sheath of the threaded cable are provided with a plurality of supporting points, so that the intermodulation stability performance is met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (7)

1. Join in marriage and join in marriage radio frequency connector that super flexible thread cable multiple waterproof intermodulation is stable, its characterized in that: comprising a connector front end part (1); the rear end of the connector front end part (1) is hermetically sleeved with a connector rear end part (2), and the connector rear end part (2) comprises a shaft sleeve (21), a sealing bush (22), a rear wire clamp (25) and a rear threaded sleeve (26);
the front end outer wall of the rear threaded sleeve (26) is sleeved with a connector front end component (1), and a shaft sleeve (21), a sealing bush (22) and a rear wire clamp (25) are sequentially arranged in the rear threaded sleeve (26) along the axial direction; the inner wall of the shaft sleeve (21) is provided with a first spiral groove (211), and the first spiral groove (211) is used for assembling and connecting a cable outer conductor (33) of the corrugated cable (3); the sealing bush (22) is embedded into the rear end of the inner portion of the shaft sleeve (21), a second spiral groove (221) matched with the cable outer conductor (33) is formed in the inner wall of the sealing bush (22), the sections of the first spiral groove (211) and the second spiral groove (221) are both U-shaped, the second spiral groove (221) and the first spiral groove (211) are continuously distributed along the axial direction, and the first spiral groove (211) and the second spiral groove (221) are used for realizing rigid contact and flexible extrusion of the corrugated cable (3) and the connector rear end part (2); the sealing bush (22) is used for improving the connection tightness and strength of the cable outer conductor (33) and the shaft sleeve (21);
the cable outer conductor (33) is arranged in the cable outer sheath (34), the inner wall of the rear end of the rear threaded sleeve (26) is attached to the outer wall of the cable outer sheath (34), the rear wire clamp (25) is installed between the rear threaded sleeve (26) and the sealing bushing (22), the front end part of the rear wire clamp (25) is extended and embedded between the sealing bushing (22) and the shaft sleeve (21), the rear end part of the rear wire clamp (25) is extended and embedded between the cable outer sheath (34) and the rear threaded sleeve (26), the rear threaded sleeve (26) is used for extruding the rear wire clamp (25), sealing elements are embedded between the rear wire clamp (25) and the rear threaded sleeve (26) and between the rear threaded sleeve (26) and the cable outer sheath (34), and the sealing elements and the rear wire clamp (25) are used for achieving multiple waterproof.
2. The multi-waterproof intermodulation-stable radio frequency connector for mated ultra-flexible threaded cables of claim 1, wherein: the rear end part of the rear wire clamp (25) is provided with a clamping sleeve (253), the clamping sleeve (253) is of a split groove structure, a plurality of continuous arc salient points (2531) are axially distributed on the inner wall of the clamping sleeve (253), and the arc salient points (2531) are used for enabling the rear wire clamp (25) to be in reliable rigid contact with the cable outer sheath (34).
3. The multi-waterproof intermodulation-stable radio frequency connector for mated ultra-flexible threaded cables of claim 2, wherein: the outer wall of the rear wire clamp (25) is provided with a supporting boss (251), the outer wall of the supporting boss (251) is sleeved with an annular fifth sealing ring (24), and the fifth sealing ring (24) is embedded between the rear wire clamp (25) and the rear threaded sleeve (26).
4. The multi-waterproof intermodulation-stable radio frequency connector for mated ultra-flexible threaded cables of claim 3, wherein: the inner wall of the rear threaded sleeve (26) is provided with a sealing surface (262) and an extrusion seat (263) in sequence along the axial direction; the integral inward bulge of the extrusion seat (263), the extrusion seat (263) is distributed from front to back and inwards, the extrusion seat (263) is attached to the outer wall of the clamping sleeve (253), the extrusion seat (263) is used for inwards extruding the clamping sleeve (253), the supporting boss (251) abuts against the sealing surface (262), the fifth sealing ring (24) is attached to the sealing surface (262), the front side surface of the supporting boss (251) abuts against the rear end surface of the shaft sleeve (21), and the rear end surface of the supporting boss (251) abuts against the step surface of the extrusion seat (263).
5. The multi-waterproof intermodulation-stable radio frequency connector for mated ultra-flexible threaded cables of claim 4, wherein: the inner wall of the rear wire clamp (25) is provided with a positioning step (252), the positioning step (252) extends into a position between the rear end face of the sealing bush (22) and the front end face of the cable outer sheath (34), and the positioning step (252) is used for stopping the cable outer sheath (34).
6. The multi-waterproof intermodulation-stable radio frequency connector for mated ultra-flexible threaded cables of claim 1, wherein: an arc groove (261) is formed in the outer wall of the front end of the rear threaded sleeve (26), a fourth sealing ring (23) is embedded into the arc groove (261), and the fourth sealing ring (23) is embedded into the joint face of the front end part (1) of the connector and the rear threaded sleeve (26); an annular groove (264) is formed in the inner wall of the rear end of the rear threaded sleeve (26), a sixth sealing ring (27) is embedded into the annular groove (264), and the sixth sealing ring (27) is embedded into the joint of the rear threaded sleeve (26) and the cable outer sheath (34).
7. The multi-waterproof intermodulation-stable radio frequency connector for mated ultra-flexible threaded cables of claim 1, wherein: connector front end part (1) includes hexagonal swivel nut (11), the inside of hexagonal swivel nut (11) is fixed with connector outer conductor (18), hexagonal swivel nut (11) with the interface embedding of connector outer conductor (18) has rand (16), the rear end suit of connector outer conductor (18) in the front end outer wall of back swivel nut (26), connector inner conductor (17) is installed to the inside central line department of connector outer conductor (18), the inside cable inner conductor (31) that is used for cartridge corrugated cable (3) of rear end of connector inner conductor (17), connector inner conductor (17) with install a plurality of insulating lantern rings (15) between connector outer conductor (18), insulating lantern ring (15) with the interface department embedding of connector inner conductor (17) has first sealing washer (12), insulating lantern ring (15) with the interface department embedding of connector outer conductor (18) has the second sealing washer (13) And a third sealing ring (14) is sleeved on the outer wall of the front end of the outer conductor (18) of the connector.
CN202010541007.XA 2020-06-15 2020-06-15 Radio frequency connector matched with ultra-flexible threaded cable for multiple waterproof intermodulation stabilization Active CN111900572B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010541007.XA CN111900572B (en) 2020-06-15 2020-06-15 Radio frequency connector matched with ultra-flexible threaded cable for multiple waterproof intermodulation stabilization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010541007.XA CN111900572B (en) 2020-06-15 2020-06-15 Radio frequency connector matched with ultra-flexible threaded cable for multiple waterproof intermodulation stabilization

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CN112864688A (en) * 2020-12-31 2021-05-28 江苏正恺电子科技有限公司 Connector capable of preventing snap ring from falling off and assembling method thereof
CN117239492A (en) * 2023-11-14 2023-12-15 深圳市康奈特电子有限公司 Waterproof floating radio frequency coaxial connector
CN117239492B (en) * 2023-11-14 2024-03-08 深圳市康奈特电子有限公司 Waterproof floating radio frequency coaxial connector

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