CN109950720B - Radio frequency coaxial adapter - Google Patents
Radio frequency coaxial adapter Download PDFInfo
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- CN109950720B CN109950720B CN201711387006.9A CN201711387006A CN109950720B CN 109950720 B CN109950720 B CN 109950720B CN 201711387006 A CN201711387006 A CN 201711387006A CN 109950720 B CN109950720 B CN 109950720B
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- cylindrical outer
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- 239000004020 conductor Substances 0.000 claims abstract description 149
- 230000007704 transition Effects 0.000 claims description 49
- 239000002184 metal Substances 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 description 7
- 238000003780 insertion Methods 0.000 description 7
- 239000012212 insulator Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The invention provides a radio frequency coaxial adapter, which comprises a cylindrical outer shell, a left radio frequency plug-in terminal and a right radio frequency plug-in terminal, wherein the left radio frequency plug-in terminal and the right radio frequency plug-in terminal are radially and floatingly installed in the cylindrical outer shell, the radio frequency plug-in terminal comprises a cylindrical outer conductor and an inner conductor fixedly arranged relative to the cylindrical outer conductor, a spring for providing an axially outward acting force for the outer conductor is arranged in the cylindrical outer shell, a stopping structure for stopping the outer conductor in the axially outward direction to prevent the outer conductor from being separated from the cylindrical outer shell is further arranged on the cylindrical outer shell, and a stopping matching surface between the stopping structure and the cylindrical outer conductor is a conical surface. Under the action of the spring, the cylindrical outer conductor has the tendency of moving outwards relative to the cylindrical outer shell, and under the guidance of the conical surface, the cylindrical outer conductor can naturally return to the right state when in a stress balance state, keeps coaxial with the cylindrical outer shell, and can be conveniently and accurately inserted when the adaptive plug terminal is inserted, so that the use is convenient.
Description
Technical Field
The invention relates to a radio frequency coaxial adapter.
Background
As a common signal transmission component, the rf coaxial adapter has a wide application in some occasions, and the number of rf coaxial adapters adapted to the rf coaxial adapter is increasing, for example, chinese patent application No. 201310560307.2 and issued publication No. 2016.03.23 disclose an rf coaxial adapter. The adapter aims at solving the problem that one end of the original double-end floating adapter is stressed and can not realize axial and radial floating after axial or radial floating, a fixed insulator is fixed in the outer sleeve body through the inner sleeve body, a fixed inner conductor is fixed in the fixed insulator, a left floating component and a right floating component are respectively installed on two sides of the fixed insulator in the outer sleeve body, the left floating component and the right floating component respectively comprise a floating outer conductor and a floating inner conductor, the floating inner conductor is movably matched with the fixed inner conductor and is communicated with the floating inner conductors of the left floating component and the right floating component, the floating outer conductor is movably matched with the inner sleeve body and is communicated with the floating outer conductors of the left floating component and the right floating component, a pressure spring is arranged between the floating outer conductor and a connecting ring plate between the inner sleeve body and the outer sleeve body, and the floating of the floating component relative to the outer sleeve body in the axial direction is. In addition, a gap exists between the outer sleeve and the left and right floating components in the radial direction, so that radial floating is realized.
Although the plug terminals at the two ends of the adapter can float in an axial direction and a radial direction without interfering with each other, the plug terminals cannot automatically return after shifting in the radial direction relative to the outer sleeve body due to weight or other external actions, so that the problem that the plug terminals cannot be accurately plugged next time exists, and certain influence is exerted on the using effect.
Disclosure of Invention
The invention aims to provide a radio frequency coaxial adapter with a radially floating plug terminal capable of automatically aligning, and further optimize the using effect of the connector.
In order to achieve the above object, the radio frequency coaxial adapter of the present invention includes a cylindrical outer housing, and left and right radio frequency plug terminals installed in the cylindrical outer housing in a radially floating manner, wherein each radio frequency plug terminal includes a cylindrical outer conductor and an inner conductor fixedly disposed with respect to the cylindrical outer conductor, a spring for providing an axially outward acting force to the outer conductor is disposed in the cylindrical outer housing, a stopper structure for stopping the outer conductor in an axially outward direction to prevent the outer conductor from coming off the cylindrical outer housing is further disposed on the cylindrical outer housing, and a stopper fitting surface between the stopper structure and the cylindrical outer conductor is a conical surface whose axis coincides with an axis of the cylindrical outer housing. Under the action of the spring, the cylindrical outer conductor has the tendency of moving outwards relative to the cylindrical outer shell, and under the guidance of the conical surface, the cylindrical outer conductor can naturally return to the right state when in a stress balance state, keeps coaxial with the cylindrical outer shell, and can be conveniently and accurately inserted when the adaptive plug terminal is inserted, so that the use is convenient.
Further, the stop structure can be arranged at a position close to the end part of the cylindrical outer shell, and the guiding action of the conical surface on the cylindrical outer conductor is closer to the end part of the plug terminal, so that the plugged end part of the radio frequency plug terminal can be better kept at a central position.
Furthermore, the stopping structure is an annular end head which is arranged at two ends of the cylindrical outer shell through pins, and the annular end head is matched with the outer conductor in a stopping way through the inner end surface of the annular end head.
The technical schemes of the three radio frequency coaxial adapters are provided, and various improved schemes can be made on the basis of the three technical schemes.
For example, the radio frequency plug terminal includes an outer conductor assembly, the outer conductor assembly includes the cylindrical outer conductor, a first transition outer conductor and a second transition outer conductor, which are sequentially plug-connected from outside to inside in the axial direction, an annular step for stopping the second transition outer conductor is provided in the cylindrical outer shell, and the spring is provided between the cylindrical outer conductor and the second transition outer conductor.
Furthermore, an axial split groove is formed in one of the first transition outer conductor and the second transition outer conductor at the inserting end connected with the other inserting sleeve, and the first transition outer conductor realizes the floating of the cylindrical outer conductor and the second transition outer conductor in the radial direction through the elastic deformation capacity of the axial split groove.
Even one of the first transition outer conductor and the second transition outer conductor can be provided with a spherical bulge on the insertion surface of the insertion end connected with the other insertion sleeve, and the spherical bulge can more conveniently enable the first transition outer conductor and the second transition outer conductor to deflect in the radial direction.
When the outer conductor assembly of the radio frequency plug terminal comprises the cylindrical outer conductor, the first transition outer conductor and the second transition outer conductor, the cylindrical outer shell can adopt a metal shell, and the cylindrical outer conductors of the left radio frequency plug terminal and the right radio frequency plug terminal are communicated through the first transition outer conductor, the second transition outer conductor and the annular step, so that the structure is simple.
In addition, on the basis that the connector is a double-end connector, namely an adapter, the central conductor can be coaxially fixed in the middle of the cylindrical outer shell, and the inner conductors of the two radio frequency plug terminals are respectively connected with the plug bushes at the two ends of the central conductor and are conducted.
When the inner conductor is respectively connected with the central conductor plug bush, one of the central conductor and the inner conductor is provided with an axial split groove at the connecting end of the central conductor and the inner conductor, and the inner conductor realizes radial floating with the central conductor through the elastic deformation capacity of the axial split groove.
Drawings
FIG. 1 is a schematic diagram of an RF coaxial adapter according to an embodiment of the present invention;
fig. 2 is an enlarged view of the rf plug terminal portion structure of fig. 1.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In a first embodiment of the radio frequency coaxial adapter of the present invention, as shown in fig. 1-2, the radio frequency coaxial adapter includes a cylindrical outer shell 1, a left radio frequency plug terminal and a right radio frequency plug terminal are respectively installed at two ends of the cylindrical outer shell 1, and the left radio frequency plug terminal and the right radio frequency plug terminal have the same structure and are installed in opposite directions. Only the left rf jack terminal will be described below.
As shown in fig. 1-2, the left rf jack terminal includes an outer conductor assembly and an inner conductor assembly. The outer conductor assembly comprises a cylindrical outer conductor 3, a first transition outer conductor 31 and a second transition outer conductor 32 which are in transition connection from left to right, and the cylindrical outer conductor 3 is a plugging part used for plugging with the adaptive plugging terminal. The inner conductor assembly includes an inner conductor 5 and a jack portion mounted at a front end of the inner conductor 5.
The periphery of the cylindrical shell body 1 is provided with a connecting flange, and the middle position inside the cylindrical shell body is provided with an annular step 11. The cylindrical outer conductor 3 and the first transition outer conductor 31 are mutually sleeved, the inner wall surface of the cylindrical outer conductor 3 is provided with a step surface, and one end of the first transition outer conductor 31 is pressed against the step surface, so that the cylindrical outer conductor and the first transition outer conductor are in pushing fit in the axial direction. The first transition outer conductor 31 is in a reducing cylinder shape, the large end extends into the cylinder-shaped outer conductor 3, the small end is provided with an axial transition outer conductor splitting groove, and the periphery of the small end is provided with a spherical protrusion 310. The second transition outer conductor 32 is also hollow cylindrical, and the outer peripheral surface is stepped, the small diameter section thereof is sleeved on the small diameter end of the first transition outer conductor 31 and is contacted with the first transition outer conductor 31 through the spherical surface 310, and the end of the large diameter section is pressed against the end surface of the annular step 11 of the cylindrical outer shell 1. An outer flange 30 is further provided on the outer peripheral surface of the cylindrical outer conductor 3, and a compression spring 7 is further interposed between the outer flange 30 and the outer step surface of the second transition outer conductor 32 in the cylindrical outer case 1. The cylindrical outer shell 1 further includes an annular end 10 fixedly mounted at an end thereof by a pin, and an inner end surface of the annular end 10 blocks the outer flange 30 in an outward direction to prevent the cylindrical outer conductor 3 from coming off the cylindrical outer shell 1. Thus, the cylindrical outer conductor 3 is pressed against the end 10 and the second transition outer conductor 32 is pressed against the annular step 11 by the compression spring 7. When plugged, the cylindrical outer conductor 3 can float in the axial direction with respect to the cylindrical outer housing 1. Because the cylindrical shell 1 is a metal cylinder, the outer conductor components of the left and right radio frequency plug terminals are conducted through the second transition outer conductors respectively contacted with the two end faces of the annular step.
The rear end face of the annular end 10 is a conical surface coaxial with the cylindrical outer shell, the front side face of the outer flange 30 in stop fit with the rear end face of the annular end 10 is a matched conical surface, under the jacking action of the spring and the guiding action of the conical surface, the cylindrical outer conductor can naturally return to a normal state when in a stress balance state, and keeps coaxial with the cylindrical outer shell, and the plug-in terminal can be conveniently and accurately plugged when being plugged, so that the plug-in terminal is convenient to use.
The inner conductor 5 is coaxially fixed in the outer conductor assembly by a pair of terminal insulating supports 4 fixed in the large diameter section cavity of the first transition outer conductor 31, with its front end extending into the cylindrical outer conductor 3 and its rear end extending into the second transition outer conductor 32. The central conductor 6 is coaxially fixed on the annular step in the cylindrical outer cylinder 1 through the cylinder insulating support pair 8, the two ends of the central conductor 6 are provided with plug holes, and the wall of each plug hole is provided with a central conductor splitting groove 60. The inner ends of the inner conductors 5 of the left and right radio frequency plug terminals are correspondingly inserted into the plug holes at the two ends of the central conductor 6, and the conduction is realized through the central conductor 6.
The cylindrical outer conductor 3 and the rest cylindrical outer shell 1 have radial gaps, the cylindrical outer conductor 3 and the first transition outer conductor 31 can float in the radial direction relative to the second outer conductor through the spherical protrusion 310 at the inner end of the first transition outer conductor 31 and the transition outer conductor split groove, and the inner conductor 5 can float in the radial direction relative to the central conductor under the elastic action of the central conductor split groove 60 on the wall of the plug hole of the central conductor 6.
In the radio frequency coaxial connector in the above embodiment, the first transition outer conductor is inserted into the second transition outer conductor, and the insertion section of the first transition outer conductor is provided with the axial split groove of the transition outer conductor, and the spherical protrusion is also provided on the first transition outer conductor.
In the radio frequency coaxial connector in the above embodiment, the hole walls of the insertion holes at the two ends of the central conductor are provided with the splitting grooves, in other embodiments, the inner end of the inner conductor may be provided with the insertion hole into which the central conductor is inserted, and the hole wall of the insertion hole is provided with the splitting grooves.
In the above embodiment, the stopper structure is an annular end fixed on the cylindrical outer shell, and in other embodiments, a stopper ring with a conical surface on one side can be installed in the cylindrical outer shell, the conical surface of the stopper ring faces inwards, and the stopper ring is axially positioned by a C-shaped ring installed on the inner wall of the cylindrical outer shell.
Claims (8)
1. The radio frequency coaxial adapter comprises a cylindrical outer shell, a left radio frequency plug-in terminal and a right radio frequency plug-in terminal, wherein the left radio frequency plug-in terminal and the right radio frequency plug-in terminal are radially and floatingly installed in the cylindrical outer shell, the radio frequency plug-in terminal comprises a cylindrical outer conductor and an inner conductor which is fixedly arranged relative to the cylindrical outer conductor, a spring which provides an axial outward acting force for the outer conductor is arranged in the cylindrical outer shell, and a stopping structure which is used for stopping the outer conductor in the axial outward direction is also arranged on the cylindrical outer shell. The spring is disposed between the cylindrical outer conductor and the second transition outer conductor.
2. The radio frequency coaxial adapter of claim 1, wherein the stop structure is disposed at a location proximate an end of the cylindrical outer housing.
3. The radio frequency coaxial adapter according to claim 2, wherein the stopper structure is an annular end fitting at both ends of the cylindrical outer housing by a pin, and the annular end fitting with the outer conductor stopper by its inner end surface.
4. The radio frequency coaxial adapter according to claim 1, wherein one of the first transition outer conductor and the second transition outer conductor is provided with an axial split groove at a connection end thereof connected to the other bushing, and the first transition outer conductor realizes floating of the cylindrical outer conductor and the second transition outer conductor in a radial direction by an elastic deformability of the axial split groove.
5. The radio frequency coaxial adapter of claim 4, wherein one of the first transition outer conductor and the second transition outer conductor is provided with a spherical protrusion on an engagement surface of an engagement end thereof to be engaged with the other one of the sleeves.
6. The rf coaxial adapter of claim 1, wherein the cylindrical outer housing is a metal housing, and the cylindrical outer conductors of the left and right rf plug terminals are connected through the first transition outer conductor, the second transition outer conductor and the annular step.
7. The radio frequency coaxial adapter according to claim 1, 2 or 3, wherein a central conductor is coaxially fixed in the middle of the cylindrical outer housing, and the inner conductors of the two radio frequency plug terminals are respectively connected with the plug bushes at the two ends of the central conductor to realize conduction.
8. The radio frequency coaxial adapter of claim 7, wherein one of the center conductor and the inner conductor is provided with an axial split groove at a connection end thereof to be connected to the other bushing, and the inner conductor is radially floated from the center conductor by an elastic deformability of the axial split groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711387006.9A CN109950720B (en) | 2017-12-20 | 2017-12-20 | Radio frequency coaxial adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711387006.9A CN109950720B (en) | 2017-12-20 | 2017-12-20 | Radio frequency coaxial adapter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109950720A CN109950720A (en) | 2019-06-28 |
| CN109950720B true CN109950720B (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711387006.9A Active CN109950720B (en) | 2017-12-20 | 2017-12-20 | Radio frequency coaxial adapter |
Country Status (1)
| Country | Link |
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| CN (1) | CN109950720B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690699B (en) * | 2021-08-25 | 2024-04-19 | 遵义市飞宇电子有限公司 | Floating radio frequency coaxial connector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200944471Y (en) * | 2006-07-10 | 2007-09-05 | 朱建平 | Rapid plugging self-locking radio-frequency coaxial connector socket |
| JP4450242B2 (en) * | 2007-04-10 | 2010-04-14 | ヒロセ電機株式会社 | Coaxial connector |
| US7785144B1 (en) * | 2008-11-24 | 2010-08-31 | Andrew Llc | Connector with positive stop for coaxial cable and associated methods |
| CN203574201U (en) * | 2013-09-04 | 2014-04-30 | 陕西金波通信技术有限公司 | Locking-type ratchet-wheel threaded coaxial connector |
| CN104103982B (en) * | 2014-07-22 | 2016-10-05 | 中国电子科技集团公司第四十一研究所 | A kind of microminiature push-in type wide band radio-frequency coaxial connector with self-protecting device |
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2017
- 2017-12-20 CN CN201711387006.9A patent/CN109950720B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109950720A (en) | 2019-06-28 |
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