CN109950719B - Radio frequency coaxial connector - Google Patents
Radio frequency coaxial connector Download PDFInfo
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- CN109950719B CN109950719B CN201711385279.XA CN201711385279A CN109950719B CN 109950719 B CN109950719 B CN 109950719B CN 201711385279 A CN201711385279 A CN 201711385279A CN 109950719 B CN109950719 B CN 109950719B
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Abstract
The invention provides a radio frequency coaxial connector, which comprises a cylindrical outer shell and a radio frequency plug-in terminal which is radially and floatingly arranged in the cylindrical outer shell, wherein 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, the inner conductor and the outer conductor are coaxially arranged, a supporting piece which can be elastically deformed in the radial direction is also arranged between the cylindrical outer conductor and the cylindrical outer shell, and the supporting piece uniformly provides the cylindrical outer conductor with elastic force which is inwards in the radial direction in the circumferential direction. Through radial elastic deformation's support piece, can provide even, the radial inward elastic force of circumference to the tube-shape outer conductor under natural state, keep coaxial with the tube-shape shell body naturally when tube-shape shell body atress is balanced, lie in that adaptation plug terminal just can make things convenient for accurate when to inserting, convenient to use.
Description
Technical Field
The invention relates to a radio frequency coaxial connector.
Background
As a common signal transmission component, the rf coaxial connector has a wide application in some occasions, and more rf coaxial adapters adapted to the rf coaxial connector are used, for example, chinese patent application No. 201310560307.2 and granted 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 connector with a radially floating plug terminal capable of automatically aligning, and further optimize the using effect of the connector.
In order to achieve the purpose, the radio frequency coaxial connector comprises a cylindrical outer shell and a radio frequency plug terminal which is radially and floatingly installed in the cylindrical outer shell, wherein the radio frequency plug terminal comprises a cylindrical outer conductor and an inner conductor which is fixedly arranged relative to the cylindrical outer conductor, the inner conductor and the outer conductor are coaxially arranged, a supporting piece which can elastically deform in the radial direction is further arranged between the cylindrical outer conductor and the cylindrical outer shell, and the supporting piece uniformly provides elastic force which is radially inward for the cylindrical outer conductor in the circumferential direction. Through radial elastic deformation's support piece, can provide even, the radial inward elastic force of circumference to the tube-shape outer conductor under natural state, keep coaxial with the tube-shape shell body naturally when tube-shape shell body atress is balanced, lie in that adaptation plug terminal just can make things convenient for accurate when to inserting, convenient to use.
The structural form of the supporting part is various, and a technical scheme of the radio frequency coaxial connector can be further provided, namely the supporting part adopts an O-shaped ring structure; or the supporting pieces are elastic cushion blocks which are uniformly arranged on the cylindrical outer shell at intervals in the circumferential direction and support the cylindrical outer conductor inwards in the radial direction
When the supporting piece adopts an O-shaped ring structure, the O-shaped rings capable of elastically deforming in the radial direction are various, and the O-shaped rings can be further limited to be rubber rings.
When the O-shaped ring is used as the supporting piece, the inner annular groove can be formed in the cylindrical outer shell, the O-shaped ring is installed in the inner annular groove, the structure of the radio frequency plug terminal does not need to be changed too much, and manufacturing cost is low.
Furthermore, the O-shaped ring is arranged at the position close to the end part of the cylindrical outer shell, so that the alignment of the radio frequency plug terminal can be better promoted.
What kind of connector when not prescribing a limit to the connector in above several kinds of schemes, it can be the ordinary connector of single-ended grafting promptly, also can be the double-end connector of bi-polar grafting, adapter promptly, specifically prescribes a limit to it in this scheme as the double-end connector, and at this moment, the radio frequency plug terminal has two and is located the both ends of tube-shape shell body respectively, and the inner and outer conductor of two radio frequency plug terminals corresponds the connection and switches on.
On the basis that the connector is a double-end connector, namely an adapter, the following continuous improvements can be made.
For example, a spring providing an axially outward elastic force to the cylindrical outer conductor is arranged in the cylindrical outer shell, and a blocking structure for blocking the cylindrical outer conductor in an axially outward direction to prevent the cylindrical outer conductor from being pulled out is further arranged on the cylindrical outer shell.
For example, a structural form of the radio frequency plug terminal is further specifically defined, that is, 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 connected in a plug-in manner from outside to inside in the axial direction, an annular step for stopping the second transition outer conductor is arranged in the cylindrical outer shell, and the spring is arranged between the cylindrical outer shell and the second transition outer conductor.
Or further limiting, an axial split groove is arranged on 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.
And one of the first transition outer conductor and the second transition outer conductor is provided with a spherical protrusion on the insertion joint surface of the insertion end connected with the other insertion sleeve, and the spherical protrusion is more convenient to float 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 is 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 structural diagram of an embodiment of an rf coaxial connector according to 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.
As shown in fig. 1-2, a double-end floating rf coaxial adapter is taken as an example for description, but in other embodiments, the rf coaxial connector of the present invention may be a single-end common rf coaxial connector.
The radio frequency coaxial connector comprises a cylindrical outer shell 1, a left radio frequency plug terminal and a right radio frequency plug terminal are respectively installed at two ends in the cylindrical outer shell 1, the left radio frequency plug terminal and the right radio frequency plug terminal are identical in structure and opposite in installation direction. 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. 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 annular step surface 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 comprises a terminal 10 fixedly mounted at an end portion thereof by a pin, and an inner end surface of the terminal 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 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 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.
An O-shaped ring 2 is arranged between the cylindrical outer conductor 3 and the cylindrical outer conductor 1, specifically between the end head 10 and the cylindrical outer conductor 3, the O-shaped ring 2 is a rubber ring and is arranged in an inner annular groove on the inner circumferential surface of the end head 10, and the O-shaped ring can elastically deform in the radial direction, so that the O-shaped ring can uniformly provide elastic acting force in the radial direction of the cylindrical outer conductor 3 in the circumferential direction, and the cylindrical outer conductor 1 is always located at the central axis position of the cylindrical outer conductor 3 in a natural state.
The radio frequency coaxial connector provided by the invention provides elastic support for the cylindrical outer conductor in the radial direction through the O-shaped ring, so that the radio frequency coaxial connector can be automatically kept at a position coaxial with the cylindrical outer shell, and can be conveniently and accurately inserted and connected in use, thereby being very convenient.
The radio frequency coaxial connector in the above embodiment uses the rubber O-ring to provide radial elastic support for the cylindrical outer conductor, but in other embodiments, an O-ring made of other materials, such as a spring ring similar to a spring finger, may be used; even in other embodiments, instead of the O-ring structure that is closed in the circumferential direction, for example, a plurality of elastic support pads that are evenly spaced in the circumferential direction may be used to elastically support the cylindrical outer conductor, or a C-shaped spring piece that is elastically deformable in the radial direction and has a circumferential opening may be used.
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.
Claims (11)
1. A radio frequency coaxial connector is characterized by comprising a cylindrical outer shell and radio frequency plug terminals which are radially and floatingly installed in the cylindrical outer shell, wherein each radio frequency plug terminal comprises a cylindrical outer conductor and an inner conductor which is fixedly arranged relative to the cylindrical outer conductor, the inner conductor and the outer conductor are coaxially arranged, a supporting piece which can be elastically deformed in the radial direction is further arranged between the cylindrical outer conductor and the cylindrical outer shell, the supporting piece uniformly provides elastic force which is inward in the radial direction for the cylindrical outer conductor in the circumferential direction, the connector is a double-end connector, the radio frequency plug terminals are provided with two ends which are respectively positioned at the two ends of the cylindrical outer shell, the inner conductors and the outer conductors of the two radio frequency plug terminals are correspondingly connected and communicated, a central conductor is coaxially fixed at the middle position in the cylindrical outer shell, the inner conductors of the two radio frequency plug terminals are respectively connected with the, one of the central conductor and the inner conductor is provided with an axial split groove at the connecting end connected with the other plug bush, and the inner conductor realizes radial floating with the central conductor through the elastic deformation capacity of the axial split groove.
2. The rf coaxial connector of claim 1, wherein the support member is an O-ring.
3. The radio frequency coaxial connector of claim 2, wherein the O-ring is a rubber ring.
4. The rf coaxial connector of claim 3, wherein the cylindrical outer housing defines an inner annular groove, and wherein the O-ring is received in the inner annular groove.
5. The radio frequency coaxial connector of claim 4, wherein the O-ring is located proximate an end of the cylindrical outer housing.
6. The rf coaxial connector as claimed in claim 1, wherein the cylindrical outer housing has a spring for providing an axially outward resilient force to the cylindrical outer conductor, and the cylindrical outer housing has a stopper structure for stopping the cylindrical outer conductor in an axially outward direction to prevent the cylindrical outer conductor from coming off.
7. The rf coaxial connector of claim 6, wherein the rf pin terminal comprises an outer conductor assembly, the outer conductor assembly comprises the cylindrical outer conductor, the first transition outer conductor and the second transition outer conductor, which are sequentially inserted and connected from outside to inside in the axial direction, an annular step is provided in the cylindrical outer housing for stopping the second transition outer conductor, and the spring is provided between the cylindrical outer housing and the second transition outer conductor.
8. The radio frequency coaxial connector according to claim 7, wherein one of the first transition outer conductor and the second transition outer conductor is provided with an axial split groove at a mating end thereof to be 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.
9. The rf coaxial connector of claim 8, wherein one of the first transition outer conductor and the second transition outer conductor has a spherical protrusion on a mating surface of the mating end thereof to be connected to the other one of the ferrules.
10. The rf coaxial connector of claim 7, 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.
11. The rf coaxial connector of claim 1, wherein the support members are resilient pads circumferentially spaced evenly on the cylindrical outer housing and supporting the cylindrical outer conductor radially inwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385279.XA CN109950719B (en) | 2017-12-20 | 2017-12-20 | Radio frequency coaxial connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385279.XA CN109950719B (en) | 2017-12-20 | 2017-12-20 | Radio frequency coaxial connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109950719A CN109950719A (en) | 2019-06-28 |
| CN109950719B true CN109950719B (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711385279.XA Active CN109950719B (en) | 2017-12-20 | 2017-12-20 | Radio frequency coaxial connector |
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| Country | Link |
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| CN (1) | CN109950719B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600916B (en) * | 2019-10-11 | 2024-04-05 | 江苏和飞航天电子有限公司 | Radio frequency connector with larger radial tolerance |
| US11437760B2 (en) | 2020-06-23 | 2022-09-06 | Te Connectivity Solutions Gmbh | Floating coaxial connector with a stabilizing ring at the mating end |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2211680T3 (en) * | 2000-03-30 | 2004-07-16 | HARTING ELECTRIC GMBH & CO. KG | ELECTRICAL CONNECTOR FOR CONNECTING ELECTRICAL CONDUCTORS TO AN ELECTRICAL DEVICE. |
| JP3822871B2 (en) * | 2003-07-17 | 2006-09-20 | 日本圧着端子製造株式会社 | Coaxial connector |
| CN203326286U (en) * | 2013-05-16 | 2013-12-04 | 胡汝刚 | Radio frequency coaxial connector |
| CN205104714U (en) * | 2015-11-05 | 2016-03-23 | 中国电子科技集团公司第四十研究所 | Subminiature blind radio frequency coaxial connector that inserts that floats |
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2017
- 2017-12-20 CN CN201711385279.XA patent/CN109950719B/en active Active
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| Publication number | Publication date |
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| CN109950719A (en) | 2019-06-28 |
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