CN117080822A - Radio frequency coaxial connector - Google Patents
Radio frequency coaxial connector Download PDFInfo
- Publication number
- CN117080822A CN117080822A CN202310929964.3A CN202310929964A CN117080822A CN 117080822 A CN117080822 A CN 117080822A CN 202310929964 A CN202310929964 A CN 202310929964A CN 117080822 A CN117080822 A CN 117080822A
- Authority
- CN
- China
- Prior art keywords
- metal sleeve
- radio frequency
- coaxial connector
- frequency coaxial
- inner conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 109
- 239000002184 metal Substances 0.000 claims abstract description 62
- 238000003825 pressing Methods 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000000670 limiting effect Effects 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000002788 crimping Methods 0.000 claims description 3
- 238000010618 wire wrap Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
- H01R24/42—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches
- H01R24/44—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches comprising impedance matching means
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The application relates to a radio frequency coaxial connector which comprises an outer conductor, a dielectric body, an inner conductor and a cable, wherein the outer conductor, the dielectric body, the inner conductor and the cable are sequentially arranged from outside to inside, the cable is fixedly connected with a wire pressing end of the inner conductor in a pressing way, an installation cavity is arranged in the dielectric body, the wire pressing end of the inner conductor is positioned in the installation cavity, a metal sleeve is sleeved on the outer wall of the dielectric body, the metal sleeve is in direct contact with the inner wall of the outer conductor to form electric connection, and the wire pressing end of the inner conductor is positioned in the metal sleeve.
Description
Technical Field
The application relates to the technical field of connectors, in particular to a radio frequency coaxial connector.
Background
The radio frequency coaxial connector comprises an inner conductor, an outer conductor, a dielectric body (namely an insulator) and a shell, wherein the shell, the outer conductor and the inner conductor are of coaxial structures, the inner conductor and the outer conductor are made of metal materials, the inner conductor is assembled into the dielectric body firstly, then the dielectric body and an assembly formed by the inner conductor are assembled into the outer conductor together, and finally the outer conductor is assembled into the shell.
The wire pressing end of the inner conductor of the existing radio frequency coaxial connector is positioned in the installation cavity inside the dielectric body, and the installation cavity is filled with air, so that the relative dielectric constant of the air is smaller than that of the dielectric body, the equivalent dielectric constant of the position of the wire pressing end of the inner conductor of the radio frequency coaxial connector is smaller, and the characteristic impedance of the position is larger, so that stable transmission of signals is not facilitated.
Disclosure of Invention
Aiming at the defects existing in the prior art, the application provides a radio frequency coaxial connector, which has the following specific technical scheme:
the utility model provides a radio frequency coaxial connector, includes outer conductor, dielectric body, inner conductor and the cable that sets gradually from outside to inside, the cable crimping is fixed in the line ball end of inner conductor, the inside of dielectric body is equipped with the installation cavity, the line ball end of inner conductor is located the installation cavity, the cover is equipped with metal sleeve on the outer wall of dielectric body, metal sleeve with the inner wall direct contact of outer conductor forms electric connection, the line ball end of inner conductor is located inside the metal sleeve.
As an improvement of the above technical solution, the outer conductor, the dielectric body and the inner conductor are coaxially arranged, the dielectric body includes a first part of dielectric body and a second part of dielectric body, the first part of dielectric body is opposite to the wire pressing end of the inner conductor in the radial direction of the outer conductor, and the second part of dielectric body is opposite to the inserting end of the inner conductor in the radial direction of the outer conductor; the equivalent dielectric constant of the radio frequency coaxial connector at the position of the first part of dielectric body is smaller than that of the radio frequency coaxial connector at the position of the second part of dielectric body.
As an improvement of the above technical solution, the metal sleeve is located between the outer wall of the first part of dielectric body and the inner wall of the outer conductor.
As an improvement of the technical scheme, at least one group of protruding parts are arranged on the outer surface of the metal sleeve along the extending direction of the metal sleeve, the protruding parts protrude out of the outer wall of the metal sleeve, and the protruding parts elastically deform in the radial direction so that the metal sleeve is abutted against the outer conductor to form electric connection.
As an improvement of the technical scheme, the inner wall of the metal sleeve is provided with radial extrusion acting force on the dielectric body so as to radially deform the dielectric body to press the wire pressing end of the inner conductor.
As an improvement of the above technical solution, the metal sleeve is a sheet-like winding member.
As an improvement of the above technical solution, the metal sleeve is provided with at least one group of through grooves, and the through grooves correspond to the deformation areas of the protruding parts.
As an improvement of the technical scheme, a connecting part for the cladding of the metal sleeve is arranged at the wire pressing end of the dielectric body, and a limiting step is further arranged at one end of the dielectric body, which is positioned at the connecting part.
As an improvement of the technical scheme, the splicing end of the inner conductor is provided with a plurality of groups of elastic arms, and the wire pressing end of the inner conductor is provided with an integrally formed wire wrapping structure for wrapping and clamping the cable.
As an improvement of the technical scheme, the outer conductor wire terminal is provided with a package clamping piece, and a supporting sleeve is arranged in the package clamping piece.
The application has the beneficial effects that:
according to the radio frequency coaxial connector, the equivalent dielectric constant of the radio frequency coaxial connector at the position of the medium body mounting cavity is smaller than that of the radio frequency coaxial connector at other positions of the medium body, the metal sleeve is additionally arranged in the outer conductor, and the wire pressing end of the inner conductor is positioned in the metal sleeve.
Drawings
FIG. 1 is a front view of the overall structure of the present application;
FIG. 2 is a schematic view of the structure of the inner conductor and cable of the present application;
FIG. 3 is a schematic view of the structure of the outer conductor of the present application;
FIG. 4 is a schematic view of the structure of the support sleeve of the present application;
FIG. 5 is a schematic diagram of a dielectric body structure according to the present application;
FIG. 6 is a schematic view of a metal sleeve according to the present application;
FIG. 7 is a schematic view of the mounting structure of the dielectric body and the metal sleeve according to the present application;
FIG. 8 is a schematic diagram of the positions of the inner conductor, the outer conductor and the dielectric body according to the present application.
Reference numerals: 1. an inner conductor; 2. a cable; 3. an outer conductor; 31. a clamping piece is wrapped; 4. a support sleeve; 5. a mediator; 51. a connection part; 52. a limit step; 6. a metal sleeve; 61. a boss; 62. and (5) through grooves.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The utility model provides a radio frequency coaxial connector, includes by outside-in outer conductor 3 that sets gradually, dielectric body 5, inner conductor 1 and cable 2, cable 2 crimping is fixed in the line ball end of inner conductor 1, and the inside of dielectric body 5 is equipped with the installation cavity, and the line ball end of inner conductor 1 is located the installation cavity, and the cover is equipped with metal sleeve 6 on the outer wall of dielectric body 5, and metal sleeve 6 forms electric connection with the inner wall direct contact of outer conductor 3, and the line ball end of inner conductor 1 is located inside metal sleeve 6. The outer conductor 3, the dielectric body 5 and the inner conductor 1 are coaxially arranged, the dielectric body 5 comprises a first part of dielectric body and a second part of dielectric body, the first part of dielectric body faces the line terminal of the inner conductor 1 along the radial direction of the outer conductor 3, and the second part of dielectric body faces the plug-in terminal of the inner conductor 1 along the radial direction of the outer conductor 3; the equivalent dielectric constant of the radio frequency coaxial connector at the position of the first part dielectric body is smaller than that of the radio frequency coaxial connector at the position of the second part dielectric body, and the metal sleeve 6 is positioned between the outer wall of the first part dielectric body and the inner wall of the outer conductor 3.
The characteristic impedance formula of the radio frequency coaxial connector is as follows:
the calculation formula of the equivalent dielectric constant epsilon e of the radio frequency coaxial connector is as follows:
in the formula (as shown in figure 8),
D 2 is the inner diameter (mm) of the outer conductor;
D 1 is the outer diameter (mm) of the medium body;
d is the outer diameter (mm) of the inner conductor;
ε 1 is D 1 Relative permittivity with the dielectric body between d;
ε2 is D 2 And D 1 The relative permittivity of the mesosome (relative permittivity of air is 1);
in the application, the metal sleeve 6 is added in the outer conductor 3, and the wire pressing end of the inner conductor 1 is positioned in the metal sleeve 6, so that the diameter size of the inner cavity of the outer conductor 3 can be reduced by means of the metal sleeve 6 due to the electric connection between the metal sleeve 6 and the outer conductor 3, the equivalent dielectric constant of the radio frequency coaxial connector is smaller at the position corresponding to the wire pressing end of the inner conductor 1, and the diameter size of the inner cavity of the outer conductor 3 is smaller at the position due to the arrangement of the metal sleeve 6, thereby improving the characteristic impedance performance of the radio frequency coaxial connector corresponding to the wire pressing end of the inner conductor 1, and ensuring that the characteristic impedance of each position of the radio frequency coaxial connector is basically unchanged/smaller, thereby improving the electric performance of products.
In addition, a metal sleeve 6 is arranged outside the wire pressing end of the dielectric body 5, and the inner wall of the metal sleeve 6 has radial extrusion acting force on the dielectric body 5 so as to radially deform the dielectric body 5 to press the wire pressing end of the inner conductor 1.
Referring to fig. 1, the direction of insertion is a plug end, the opposite direction is a wire terminal, as shown in fig. 1, the direction a is a plug end, the direction B is a wire terminal, the outer conductor 3, the dielectric body 5 and the inner conductor 1 are coaxially arranged, the outer conductor 3 and the inner conductor 1 are fixed with each other through the dielectric body 5 therebetween, the dielectric body 5 is a hollow structure, a cavity for installing the inner conductor 1 is arranged in the dielectric body 5, and the metal sleeve 6 can squeeze the wire terminal of the dielectric body 5, so that the dielectric body 5 is pressed against the contact part of the inner conductor 1 and the cable 2 again, and the wire connection part is not easy to loose due to vibration in the environment.
In order to allow the metal sleeve 6 to press the dielectric body 5 after winding and forming, referring to fig. 6, the metal sleeve 6 is a sheet-shaped winding member, and the metal sleeve 6 is a rectangular parallelepiped sheet-shaped, and is wound around the outside of the dielectric body 5 by pressing, so that an pressing force can be applied to the dielectric body 5 after winding.
In order to avoid that the electrical performance between the metal sleeve 6 and the outer conductor 3 is not easy to adjust, the signal transmission performance of the whole product is seriously affected, referring to fig. 1, 6 and 7, at least one group of protruding parts 61 are arranged on the outer surface of the metal sleeve 6 along the extending direction of the protruding parts, the protruding parts 61 protrude out of the outer wall of the metal sleeve 6, the protruding parts 61 are elastically deformed in the radial direction so that the metal sleeve 6 is in contact with the outer conductor 3 to form electrical connection, specifically, the outer conductor 3 is electrically connected with the metal sleeve 6 surrounding the outer part of the dielectric body 5, the protruding parts 61 and the inner wall of the outer conductor 3 are extruded and deformed in the process of inserting the metal sleeve 6, and the protruding parts 61 generate restorative elasticity due to extrusion bending, so that the protruding parts 61 are clung to the inner wall of the outer conductor 3, and the metal sleeve 6 are conducted through the protruding parts 61 and the outer conductor 3, meanwhile, the protruding parts 61 can realize a more stable limiting effect between the outer conductor 3 and the metal sleeve 6, the movement limitation of the metal sleeve 6 can be provided, the problem that the metal sleeve 6 is separated from the outer conductor 3 can be avoided, the protruding parts 61 and the metal sleeve 6 are electrically connected with the outer conductor 3, the wire harness component 1 is integrally formed by adopting the wire harness assembly, and the wire harness assembly 1, and the wire harness assembly is formed by adopting the wire harness assembly.
In order to ensure the deformation of the boss 61, referring to fig. 6 or 7, the metal sleeve 6 has at least one set of through grooves 62, where the through grooves 62 correspond to the deformation area of the boss 61, and the through grooves 62 may provide an elastic deformation space for the boss 61, so as to increase the deformable distance of the boss 61 in the radial direction.
The wire pressing end of the medium body 5 is provided with a connecting part 51 for the cladding of the metal sleeve 6, referring to fig. 5, one end of the medium body 5, which is positioned at the connecting part 51, is also provided with a limiting step 52, the connecting part 51 cladding the riveting part of the inner conductor 1 and the cable 2, and the limiting step 52 can limit the position of the metal sleeve 6 so as to avoid the dislocation of the metal sleeve 6 and the wire pressing end of the medium body 5.
In one embodiment, referring to fig. 1, one end of the inner conductor 1 is provided with a plurality of groups of elastic arms, and the other end of the inner conductor 1 is provided with an integrally formed covered wire structure for covering the cable 2, specifically, the elastic arms can improve the plugging effect of the inner conductor 1, and the cable 2 is riveted through the covered wire structure.
In order to avoid the problem that the outer conductor 3 is damaged in the riveting process with the cable 2, referring to fig. 3 and 4, the wire pressing end of the outer conductor 3 is provided with a clamping piece 31, a supporting sleeve 4 is arranged in the clamping piece 31, and the surface of the cable 2 can be coated by the supporting sleeve 4, so that the damage to the cable 2 due to the impact force in the riveting process of the outer conductor 3 is effectively avoided.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (10)
1. The utility model provides a radio frequency coaxial connector, includes outer conductor (3), medium body (5), inner conductor (1) and cable (2) that set gradually from outside to inside, cable (2) crimping is fixed in the line ball end of inner conductor (1), its characterized in that: the inside of medium body (5) is equipped with the installation cavity, the line ball end of inner conductor (1) is located the installation cavity is interior, the cover is equipped with metal sleeve (6) on the outer wall of medium body (5), metal sleeve (6) with the inner wall direct contact of outer conductor (3) forms electric connection, the line ball end of inner conductor (1) is located inside metal sleeve (6).
2. A radio frequency coaxial connector according to claim 1, wherein: the outer conductor (3), the medium body (5) and the inner conductor (1) are coaxially arranged, the medium body (5) comprises a first part of medium body and a second part of medium body, the first part of medium body is opposite to a wire pressing end of the inner conductor (1) in the radial direction along the outer conductor (3), and the second part of medium body is opposite to a plug-in end of the inner conductor (1) in the radial direction along the outer conductor (3); the equivalent dielectric constant of the radio frequency coaxial connector at the position of the first part of dielectric body is smaller than that of the radio frequency coaxial connector at the position of the second part of dielectric body.
3. A radio frequency coaxial connector according to claim 2, wherein: the metal sleeve (6) is positioned between the outer wall of the first part of dielectric body and the inner wall of the outer conductor (3).
4. A radio frequency coaxial connector according to claim 1, wherein: the outer surface of the metal sleeve (6) is provided with at least one group of protruding parts (61) along the extending direction of the metal sleeve, the protruding parts (61) protrude out of the outer wall of the metal sleeve (6), and the protruding parts (61) elastically deform in the radial direction so that the metal sleeve (6) is abutted against the outer conductor (3) to form electric connection.
5. A radio frequency coaxial connector according to claim 1, wherein: the inner wall of the metal sleeve (6) is provided with radial extrusion acting force on the medium body (5) so as to enable the medium body (5) to radially deform and press the wire pressing end of the inner conductor (1).
6. A radio frequency coaxial connector according to claim 1, wherein: the metal sleeve (6) is a sheet-like winding.
7. A radio frequency coaxial connector according to claim 4, wherein: the metal sleeve (6) is provided with at least one group of through grooves (62), and the through grooves (62) correspond to deformation areas of the protruding parts (61).
8. A radio frequency coaxial connector according to claim 1, wherein: the connecting part (51) for the cladding of the metal sleeve (6) is arranged at the line pressing end of the medium body (5), and a limiting step (52) is further arranged at one end of the medium body (5) located at the connecting part (51).
9. A radio frequency coaxial connector according to claim 2, wherein: the splicing end of the inner conductor (1) is provided with a plurality of groups of elastic arms, and the wire pressing end of the inner conductor (1) is provided with an integrally formed wire wrapping structure for wrapping the cable (2).
10. A radio frequency coaxial connector according to claim 1, wherein: the wire pressing end of the outer conductor (3) is provided with a package clamping piece (31), and a supporting sleeve (4) is arranged in the package clamping piece (31).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310929964.3A CN117080822A (en) | 2023-07-27 | 2023-07-27 | Radio frequency coaxial connector |
| PCT/CN2024/097947 WO2025020712A1 (en) | 2023-07-27 | 2024-06-07 | Radio-frequency coaxial connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310929964.3A CN117080822A (en) | 2023-07-27 | 2023-07-27 | Radio frequency coaxial connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117080822A true CN117080822A (en) | 2023-11-17 |
Family
ID=88705272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310929964.3A Pending CN117080822A (en) | 2023-07-27 | 2023-07-27 | Radio frequency coaxial connector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117080822A (en) |
| WO (1) | WO2025020712A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025020712A1 (en) * | 2023-07-27 | 2025-01-30 | 苏州华旃航天电器有限公司 | Radio-frequency coaxial connector |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3712590B2 (en) * | 2000-04-03 | 2005-11-02 | 株式会社オートネットワーク技術研究所 | Cable connector |
| CN101604808B (en) * | 2009-07-28 | 2011-06-08 | 中航光电科技股份有限公司 | Miniature radio-frequency coaxial connector and contact element thereof |
| CN103117469B (en) * | 2013-02-21 | 2016-08-03 | 上海航天科工电器研究院有限公司 | A kind of radio frequency coaxial electric connector with contact element |
| CN206893948U (en) * | 2017-05-22 | 2018-01-16 | 江苏正恺电子科技有限公司 | A kind of radio frequency (RF) coaxial connector |
| EP3772141B1 (en) * | 2019-08-02 | 2022-08-10 | TE Connectivity Germany GmbH | Rf connector elements and rf connector system |
| CN217983995U (en) * | 2022-08-31 | 2022-12-06 | 苏州华旃航天电器有限公司 | Radio frequency connector |
| CN218997151U (en) * | 2022-10-31 | 2023-05-09 | 常州捷翼汽车零部件有限公司 | A connector assembly and radio frequency connector |
| CN117080822A (en) * | 2023-07-27 | 2023-11-17 | 苏州华旃航天电器有限公司 | Radio frequency coaxial connector |
-
2023
- 2023-07-27 CN CN202310929964.3A patent/CN117080822A/en active Pending
-
2024
- 2024-06-07 WO PCT/CN2024/097947 patent/WO2025020712A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025020712A1 (en) * | 2023-07-27 | 2025-01-30 | 苏州华旃航天电器有限公司 | Radio-frequency coaxial connector |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2025020712A1 (en) | 2025-01-30 |
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