CN117767056A

CN117767056A - High-reliability radio-frequency coaxial connector for matching armor cable

Info

Publication number: CN117767056A
Application number: CN202311336697.5A
Authority: CN
Inventors: 万琨; 赵艺颖; 赵航; 董静伟
Original assignee: Xi'an Aircraft Industry Group Hengtong Aerospace Electronic Co ltd
Current assignee: Xi'an Aircraft Industry Group Hengtong Aerospace Electronic Co ltd
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2024-03-26

Abstract

The invention belongs to the technical field of high-reliability radio frequency coaxial connectors, and discloses a high-reliability coupling armor cable radio frequency coaxial connector, which comprises: the tail screw nut is movably sleeved with a screw. According to the invention, through arranging the tail screw nut, the first bushing, the first inner conductor and the second inner conductor, an operator inserts the armor cable core wire into the inner cavity, then the armor cable core wire and the first inner conductor are welded and fixed through the welding hole, the first bushing and the armor cable shielding layer are welded and fixed through the welding hole, the stability of connection is ensured, due to the design of the first inner conductor and the second inner conductor, the second inner conductor is prevented from being directly contacted with the armor cable core wire, the reliability of long-term connection and use of the connector is ensured, and due to the design of the insulating sheet, the insulating sheet can provide enough radial support for the cable core wire, and meanwhile, the accuracy of the first inner conductor in butt joint with the second inner conductor can be ensured.

Description

High-reliability radio-frequency coaxial connector for matching armor cable

Technical Field

The invention belongs to the technical field of high-reliability radio frequency coaxial connectors, and particularly relates to a high-reliability radio frequency coaxial connector for connecting an armor cable.

Background

With the development of 5G communication technology, requirements for testing reliability of various devices such as military and civil microwave communication, mobile communication, precision testing instruments and the like are higher and higher, and requirements for connectors in device testing are also higher and higher.

The connector in equipment test needs to be subjected to high-performance and high-reliability installation test, and the method used in large quantities at present is to add a protective armor outside the cable to protect the cable, so that the reliability, stability and service life of the product are improved, and the existing armor cable radio frequency coaxial connector can not guarantee the stability of connection in long-term test although being capable of connecting the armor cable, and meanwhile, the connection of the armor cable is loosened, so that improvement is needed.

Disclosure of Invention

The invention aims to provide a high-reliability radio-frequency coaxial connector for connecting an armor cable so as to solve the problems in the background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a high reliability mating armor cable radio frequency coaxial connector comprising:

the tail screw nut is movably sleeved with a screw;

the connecting mechanism is arranged inside the screw;

the connecting mechanism comprises a first lining, the outer surface of the first lining is movably sleeved with the inner surface of a screw, a welding hole and an air hole are respectively formed in the top and the bottom of the first lining, an insulating sheet is fixedly installed on the left side of the first lining and plays a supporting role, a connecting hole is formed in the middle of the insulating sheet, a lotus root core is arranged on the outer surface of the insulating sheet, a first inner conductor is fixedly installed on the left side of the insulating sheet, a second inner conductor is movably sleeved on the outer surface of the first inner conductor, an inner cavity is formed in the first inner conductor, and a welding hole is formed in the top of the first inner conductor.

Preferably, a connecting ring is movably sleeved in the tail screw nut, and a claw is fixedly arranged on the right side of the connecting ring.

Preferably, the right end fixedly connected with first sloping block of tail spiral nut, the right-hand member fixedly connected with support section of thick bamboo of first sloping block.

Preferably, a shell is sleeved on the left side thread inside the tail screw nut, and the right side of the inner surface of the shell is sleeved on the left side thread of the outer surface of the screw.

Preferably, the outer surface of the shell is movably sleeved with a sealing ring, and the outer surface of the shell is movably sleeved with a threaded sleeve.

Preferably, clamping grooves are formed in the inner portion of the screw sleeve and the outer surface of the outer shell, an elastic clamping ring is movably sleeved in the clamping grooves, and the elastic clamping ring plays a limiting role on the screw sleeve.

Preferably, the inside activity of shell has cup jointed the second bush, the right-hand member of second bush and the surface swing joint of insulating piece, the mounting groove has been seted up in the inside left side of second bush, the inside activity of mounting groove has cup jointed the insulator, the surface of insulator and the surface swing joint of shell.

Preferably, a limiting groove is formed in the middle of the outer surface of the second inner conductor, and the inner surface of the limiting groove is movably sleeved with the inner surface of the insulator.

Preferably, a second inclined block is fixedly sleeved in the shell, and the outer surface of the second inclined block is inclined.

The beneficial effects of the invention are as follows:

1. according to the invention, through arranging the tail screw nut, the first bushing, the first inner conductor and the second inner conductor, an operator inserts the armor cable core wire into the inner cavity, then the armor cable core wire and the first inner conductor are welded and fixed through the welding hole, the first bushing and the armor cable shielding layer are welded and fixed through the welding hole, the stability of connection is ensured, due to the design of the first inner conductor and the second inner conductor, the second inner conductor is prevented from being directly contacted with the armor cable core wire, the reliability of long-term connection and use of the connector is ensured, and due to the design of the insulating sheet, the insulating sheet can provide enough radial support for the cable core wire, and meanwhile, the accuracy of the first inner conductor in butt joint with the second inner conductor can be ensured.

According to the invention, the connecting ring, the clamping jaw, the first inclined block and the supporting cylinder are arranged, so that when an operator rotates the tail-screw nut, the tail-screw nut is screwed with the shell, and the tail-screw nut can drive the first inclined block to extrude the right end of the clamping jaw, so that the clamping jaw gradually radially contracts, and the inner surface of the clamping jaw is provided with threads, thereby effectively clamping the cable armor, preventing the cable armor from rotating and loosening, and improving the connection reliability.

According to the coaxial type coaxial cable connector, the shell, the second lining, the insulator and the second inclined block are arranged, and due to the design of the second inclined block, the second inclined block can guide the second lining, so that after the second lining enters the shell, coaxiality of the second inner conductor, the second lining and the shell is guaranteed, and after the left end and the right end of the second lining are respectively attached to the outer surface of the shell and the outer surface of the insulating sheet, the second inner conductor, the first inner conductor, the second lining and the shell are guaranteed to form a good coaxial type TEM die cavity, and the electrical property of the connector is guaranteed to be excellent.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the front face of the present invention;

FIG. 3 is a schematic cross-sectional view of a second inner conductor of the present invention;

FIG. 4 is a schematic view of a partial enlarged structure at A in FIG. 2;

FIG. 5 is a schematic view of a second inner conductor structure according to the present invention;

FIG. 6 is a schematic diagram of the structure of the claw of the invention;

FIG. 7 is a schematic view of a first bushing of the present invention;

fig. 8 is a schematic view of the structure of the elastic snap ring of the present invention.

In the figure: 1. tail-turning the nut; 2. a screw; 3. a first bushing; 4. welding holes; 5. ventilation holes; 6. an insulating sheet; 7. a connection hole; 8. a lotus root core; 9. a first inner conductor; 10. an inner cavity; 11. welding holes; 12. a connecting ring; 13. a claw; 14. a first sloping block; 15. a support cylinder; 16. a housing; 17. a seal ring; 18. a screw sleeve; 19. a clamping groove; 20. an elastic clasp; 21. a second bushing; 22. an insulator; 23. a second sloping block; 24. a second inner conductor; 25. a limit groove; 26. and a mounting groove.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1 to 8, an embodiment of the present invention provides a high-reliability radio-frequency coaxial connector for an armor cable, including:

the tail screw nut 1 is movably sleeved with a screw 2;

the connecting mechanism is arranged inside the screw 2;

wherein, coupling mechanism is including first bush 3, the surface activity of first bush 3 cup joints with the internal surface activity of screw 2, welding hole 4 and bleeder vent 5 have been seted up respectively to the top and the bottom of first bush 3, the left side fixed mounting of first bush 3 has insulating piece 6, insulating piece 6 plays the supporting role, connecting hole 7 has been seted up at the middle part of insulating piece 6, lotus root core 8 has been seted up to the surface of insulating piece 6, the left side fixed mounting of insulating piece 6 has first inner conductor 9, second inner conductor 24 has been cup jointed in the surface activity of first inner conductor 9, inner chamber 10 has been seted up to the inside of first inner conductor 9, welding hole 11 has been seted up at the top of first inner conductor 9.

Through setting up insulating piece 6 for insulating piece 6 can provide sufficient radial support for the cable heart yearn, can guarantee simultaneously that first inner conductor 9 is carrying out the degree of accuracy when docking with second inner conductor 24, and the holistic relative dielectric constant of insulating piece 6 can be reduced in the design of connecting hole 7, satisfies the impedance requirement when connector and cable changeover portion coplane compensation when the product design, and operating personnel is when connecting, to can carry out welded fastening with first inner conductor 9 and armour cable heart yearn through welding hole 11, through welding hole 4 with the whole and armour cable shielding layer welded fastening of first bush 3.

Wherein, the inside activity of tail revolved nut 1 has cup jointed go-between 12, and go-between 12 right side fixed mounting has jack catch 13.

By providing the jaws 13, the jaws 13 are enabled to fix the cable armor.

The right end of the tail screw nut 1 is fixedly connected with a first inclined block 14, and the right end of the first inclined block 14 is fixedly connected with a supporting cylinder 15.

When the right-hand member of jack catch 13 contacts the inclined plane of first sloping block 14, will make jack catch 13 radial contraction gradually, form clamping action to the cable armor, prevent that the cable armor from rotating and pine takes off, through setting up support section of thick bamboo 15 for support section of thick bamboo 15 can play the effect of supporting the protection to the armor cable.

Wherein, the inside left side screw thread of tail spiral nut 1 has cup jointed shell 16, and the right side of shell 16 internal surface cup joints with the left side screw thread of screw 2 surface.

When the screw 2 is rotationally fixed with the housing 16, the right end of the housing 16 will engage the outer surface of the screw 2.

Wherein, the outer surface of shell 16 has movably sleeved with sealing washer 17, and the outer surface of shell 16 has movably sleeved with swivel nut 18.

By providing the sealing ring 17, the sealing ring 17 can play a sealing role.

Wherein, draw-in grooves 19 have all been seted up to the inside of swivel nut 18 and the surface of shell 16, and the inside activity of draw-in groove 19 has cup jointed elasticity snap ring 20, and elasticity snap ring 20 plays spacing effect to swivel nut 18.

By providing the snap ring 20, the snap ring 20 is enabled to connect the threaded sleeve 18 and the housing 16 while enabling the threaded sleeve 18 to rotate.

Wherein, the inside activity of shell 16 has cup jointed second bush 21, and the right-hand member of second bush 21 and the surface swing joint of insulating piece 6, and mounting groove 26 has been seted up to the inside left side of second bush 21, and insulator 22 has been cup jointed to the inside activity of mounting groove 26, and the surface of insulator 22 and the surface swing joint of shell 16.

The number of the insulators 22 is two, and the two insulators 22 are symmetrical along the central line, so that an operator can separate the two insulators 22, further install the second inner conductor 24 between the two insulators 22, and after the insulators 22 are installed in the installation groove 26, the insulators 22 are attached to the outer surface of the shell 16 and the inner surface of the installation groove 26, so that the purpose of limiting the insulators 22 is achieved.

Wherein, the middle part of the outer surface of the second inner conductor 24 is provided with a limit groove 25, and the inner surface of the limit groove 25 is movably sleeved with the inner surface of the insulator 22.

By providing the limit groove 25, the insulator 22 is enabled to support and limit the second inner conductor 24.

Wherein, the second inclined block 23 is fixedly sleeved in the shell 16, and the outer surface of the second inclined block 23 is inclined.

When the second bush 21 is mounted, the second sloping block 23 will act as a guide for the second bush 21, so that the second bush 21 as a whole can be mounted more accurately.

Working principle and using flow:

firstly, an operator inserts the second bushing 21 into the shell 16, the second inclined block 23 plays a guiding role, so that the second bushing 21 can be accurately inserted into the shell 16, coaxiality of the second inner conductor 24 and the second bushing 21 and the shell 16 is guaranteed, then the operator presses the elastic snap ring 20, so that the elastic snap ring 20 is embedded into the shell 16, then the screw sleeve 18 is sleeved on the outer surface of the shell 16, and when the two clamping grooves 19 are overlapped, the elastic snap ring 20 contacts with the inner wall of the screw sleeve 18 under the action of elasticity, so that the limiting role of the screw sleeve 18 can be played.

The operating personnel inserts the inside of inner chamber 10 with the armor cable heart yearn through connecting hole 7, then carries out welded fastening with first bush 3 and armor cable shielding layer through welding hole 4, carries out welded fastening with first inner conductor 9 and armor cable heart yearn through welding hole 11, has guaranteed the stability that first bush 3 and first inner conductor 9 and armor cable are connected, and insulating piece 6 can provide sufficient radial support to the cable heart yearn, keeps simultaneously with improvement connector support intensity, guarantees first inner conductor 9 and second inner conductor 24 axiality.

The operating personnel is through rotatory screw 2, be connected screw 2 and shell 16, thereby make the left end of first bush 3 laminate mutually with the right-hand member of second bush 21, trapezoidal screw thread has been seted up to the rear end of screw 2 surface, through rotatory cable armour sheath with the inside compression spring of armour cable spiral-lock to trapezoidal screw thread root, resist the axial displacement of cable armour that bending, axial pulling force etc. effect produced in the armour cable assembly use, then operating personnel rotatory tail spiral nut 1, make tail spiral nut 1 screw with shell 16, thereby make screw 2 contact with the left end of go-between 12, and then make tail spiral nut 1 can drive the right-hand member of first sloping block 14 extrusion jack catch 13, thereby make jack catch 13 radially shrink gradually, the screw thread has been seted up to the internal surface of jack catch 13, thereby can carry out effectual clamp to the cable armour, prevent that cable armour from rotating and taking off, improve the connection reliability.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high reliable joint armor cable radio frequency coaxial connector which characterized in that includes:

the tail screw nut (1), the inside of the tail screw nut (1) is movably sleeved with a screw (2);

the connecting mechanism is arranged inside the screw (2);

the connecting mechanism comprises a first lining (3), the outer surface of the first lining (3) is movably sleeved with the inner surface of a screw (2), a welding hole (4) and an air vent (5) are respectively formed in the top and the bottom of the first lining (3), an insulating sheet (6) is fixedly mounted on the left side of the first lining (3), the insulating sheet (6) plays a supporting role, a connecting hole (7) is formed in the middle of the insulating sheet (6), a lotus root core (8) is formed in the outer surface of the insulating sheet (6), a first inner conductor (9) is fixedly mounted on the left side of the insulating sheet (6), a second inner conductor (24) is movably sleeved on the outer surface of the first inner conductor (9), an inner cavity (10) is formed in the first inner conductor (9), and a welding hole (11) is formed in the top of the first inner conductor (9).

2. The high reliability mating armor cable radio frequency coaxial connector of claim 1, wherein: the inside activity of tail spiral nut (1) has cup jointed go-between (12), the right side fixed mounting of go-between (12) has jack catch (13).

3. The high reliability mating armor cable radio frequency coaxial connector of claim 1, wherein: the right-hand member fixedly connected with first sloping block (14) of tail spiral nut (1), the right-hand member fixedly connected with support section of thick bamboo (15) of first sloping block (14).

4. The high reliability mating armor cable radio frequency coaxial connector of claim 1, wherein: the left side thread inside tail spiral nut (1) has cup jointed shell (16), the right side of shell (16) internal surface cup joints with the left side thread of screw (2) surface.

5. The high reliability mating armor cable radio frequency coaxial connector of claim 4, wherein: the outer surface of the shell (16) is movably sleeved with a sealing ring (17), and the outer surface of the shell (16) is movably sleeved with a threaded sleeve (18).

6. The high reliability mating armor cable radio frequency coaxial connector of claim 5, wherein: clamping grooves (19) are formed in the screw sleeve (18) and the outer surface of the shell (16), elastic clamping rings (20) are movably sleeved in the clamping grooves (19), and the elastic clamping rings (20) play a limiting role on the screw sleeve (18).

7. The high reliability mating armor cable radio frequency coaxial connector of claim 4, wherein: the inside activity of shell (16) has cup jointed second bush (21), the right-hand member of second bush (21) and the surface swing joint of insulating piece (6), mounting groove (26) have been seted up in the inside left side of second bush (21), insulator (22) have been cup jointed in the inside activity of mounting groove (26), the surface swing joint of insulator (22) and the surface of shell (16).

8. The high reliability mating armor cable radio frequency coaxial connector of claim 1, wherein: and a limiting groove (25) is formed in the middle of the outer surface of the second inner conductor (24), and the inner surface of the limiting groove (25) is movably sleeved with the inner surface of the insulator (22).

9. The high reliability mating armor cable radio frequency coaxial connector of claim 4, wherein: the inside of the shell (16) is fixedly sleeved with a second inclined block (23), and the outer surface of the second inclined block (23) is inclined.