CN210120293U - Adapter and radio frequency connector - Google Patents
Adapter and radio frequency connector Download PDFInfo
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- CN210120293U CN210120293U CN201920827549.6U CN201920827549U CN210120293U CN 210120293 U CN210120293 U CN 210120293U CN 201920827549 U CN201920827549 U CN 201920827549U CN 210120293 U CN210120293 U CN 210120293U
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Abstract
The utility model discloses an adapter and a radio frequency connector, wherein the adapter comprises an adapter outer conductor, an adapter inner conductor and an adapter insulator, the adapter outer conductor at least comprises an end part with radial elastic deformation, and an axial limiting table is arranged outside the end part with radial elastic deformation; the axial limiting table is an arc-shaped surface with gradually enlarged outer diameter. The radio frequency connector includes first connector, adapter and the second connector of pegging graft in proper order along the axial, the adapter do the adapter. The utility model discloses when satisfying axial and radial offset, the adapter takes place relative rotation around center pin and connector, does not have relative displacement or less relative displacement in the Y direction, has satisfied the performance of low intermodulation under the vibration condition.
Description
Technical Field
The utility model relates to a signal transmission device belongs to the radio frequency connector field, specifically is an adapter and radio frequency connector.
Background
The radio frequency connector is widely applied to a signal transmission network and plays a role in electrical connection and separation of transmission lines; since the coaxial connectors of the panel and the printed circuit board are used for mutual contact between the panel and the printed circuit board, the device must have the function of compensating the radial and axial deviations among the components so as to maintain the high-frequency performance, and generally has a plurality of pairs of connections. The existing board-to-board or board-to-module connections use common intra-series or inter-series connectors, and in the prior art, coaxial connectors for various panels and circuit boards are disclosed, which generally consist of an upper connector and a lower connector, which are connected by an adapter. The problem is that these connectors generally have complicated structures and insufficient tolerance compensation capability, and the allowable radial and axial deviations are small, and due to the structural limitation, the connectors cannot maintain excellent intermodulation performance under the vibration condition, and cannot completely meet the existing market requirements.
In the prior art, in a scheme of interconnection from a middle plate to a plate, a left end connector and a right end connector are respectively arranged on substrates on two sides and are connected through a middle adapter. Due to the existence of installation deviation of the left end connector and the right end connector, the adapter is in a deflection working state when the joints of the left end connector and the right end connector are connected. Within the radial dimension range of phi 0.4-phi 1.2, after the existing structure is inserted into the adapter pin, the radial distance between the contact point and the bottom of the hole does not reach the minimum deflection space of 0.05mm, which limits the deflection movement of the adapter pin in the hole, so that the relative deflection angle between the left-end inner conductor and the adapter inner conductor is limited, and the radial deviation which can be provided by the adapter for the system is limited. If the deflection angle is the maximum deflection operating capability of such a structure. When the installation deviation continues to increase, the deflection angle also continues to increase, the stress of the interference point of the inner conductor of the adapter becomes larger and larger, and even the jack is squeezed to enable the single valve to generate plastic deformation, so that irreversible damage is generated, poor contact is caused, the adapter cannot be used continuously, and the stability of the whole system and the reliability of contact are reduced. Similarly, the interference point between the left end outer conductor and the adaptor outer conductor of the adaptor outer conductor generates larger stress concentration due to the increase of installation deviation, thereby reducing the reliability of the whole system. And when the adapter and the connector do not deflect, the boss of the adapter slightly moves in the groove of the connector under the condition of vibration impact, so that the stability of intermodulation is influenced.
Disclosure of Invention
To the problem that exists among the prior art, the utility model provides an adapter and radio frequency connector has big tolerance, high-power, simple structure, the dependable performance, the intermodulation is stable.
The utility model discloses a realize through following technical scheme:
in accordance with a first aspect of the present disclosure, an adapter includes an adapter outer conductor, an adapter inner conductor, and an adapter insulator, the adapter outer conductor including at least an end portion having a radial elastic deformation, and an axial stopper provided outside the end portion having the radial elastic deformation; the axial limiting table is an arc-shaped surface with gradually enlarged outer diameter.
Optionally, the switching outer conductor includes a tubular transition body, at least one end of the transition body is provided with an end portion with radial elastic deformation, and an axial limiting table is arranged outside the end portion with radial elastic deformation.
Optionally, the switching outer conductor comprises a tubular transition body, one end of the transition body is provided with a first adapter, and an axial limiting table is arranged outside the end part of the first adapter; the other end of the transition body is provided with a second adapter, and a switching platform is arranged outside the second adapter.
Optionally, the end portion of the radial elastic deformation is a plurality of segments arranged along the circumferential direction with a gap; the outer diameter of the axial limiting table close to the end part is gradually increased.
Optionally, the transition insulator includes a first transition insulator and a second transition insulator, and the first insulator and the second insulator support and isolate the transition inner conductor and the transition outer conductor at the end portions, respectively.
Optionally, the switching inner conductor include the inner conductor switching pole, set up the inner conductor buffer head at the tip of inner conductor switching pole, the inner conductor buffer head be the cavity structure that the tip has radial elastic deformation spare, and the cavity internal diameter of inner conductor buffer head increases along the grafting direction gradually.
Optionally, the switching inner conductor includes an inner conductor switching rod, an inner conductor buffer head is arranged at an end of the inner conductor switching rod, the inner conductor buffer head includes a buffer cavity, and a closing-up elastic body with radial deformation is arranged at an end of the buffer cavity; the inner diameter of the cavity of the buffer cavity is gradually increased along the plugging direction.
According to a second object of the present disclosure, a radio frequency connector includes a first connector, an adaptor and a second connector which are sequentially inserted in an axial direction, wherein the adaptor is the adaptor according to the present disclosure.
Optionally, the axial deflection distance between the adapter and the first connector is 0-0.4 mm; the axis deflection distance between the adapter and the second connector is 0.05-0.15 mm.
Optionally, the insertion length of the first connector and the adaptor is 0.5-4.0 mm, and the insertion length of the second connector and the adaptor is 0.5-4.0 mm; the concentricity of the first connector and the second connector is 0.2 mm.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses when satisfying axial and radial offset, the adapter takes place relative rotation around center pin and connector, does not have relative displacement or less relative displacement in the Y direction, has satisfied the performance of low intermodulation under the vibration condition.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the connector of the present invention;
fig. 2 is a schematic structural diagram of the rf connector of the present invention;
fig. 3 is a schematic diagram of an inclined state structure of the rf connector according to the present invention;
the reference numerals in the figures denote:
1-switching outer conductor, 11-first switching head, 111-axial limiting table, 12-transition body, 13-second switching head, 131-switching table, 2-switching inner conductor, 21-inner conductor switching rod, 22-inner conductor buffer head, 221-buffer cavity, 222-closing-in elastomer, 3-first switching insulator and 4-second switching insulator; 5-first connector, 51-first connector outer conductor, 52-first connector inner conductor, 53-first connector insulator, 6-second connector, 61-second connector outer conductor, 62-second connector inner conductor, 63-second connector insulator;
the connector comprises a first connector, a second connector, a connector body, a lever type vertex, a lever type fulcrum, a C-delay interference point, a D-central axis and an E-spherical surface, wherein D1 is installation radial deviation of the first connector and the second connector, D2 is inner cavity abdication provided by an inner conductor of the adapter, and α is a deflection angle of the adapter.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention. In the present disclosure, unless otherwise specified, use of the directional terms "upper" and "lower" generally refer to the definition in the drawing figures of the accompanying drawings, and "inner" and "outer" refer to the inner and outer of the contours of the corresponding parts.
With reference to fig. 1-3, the adaptor of the present invention comprises an adapting outer conductor 1, an adapting inner conductor 2 and an adapting insulator, wherein the adapting outer conductor 1 at least comprises an end portion with radial elastic deformation, and an axial limiting table 111 is arranged outside the end portion with radial elastic deformation; the axial limiting table 111 is an arc-shaped surface with gradually increased outer diameter. The utility model discloses a set up the boss of arcwall face at 1 tip of switching outer conductor, make its grafting that can satisfy various lever plugs, enlarged the noninterference scope on lever summit, better improvement the reliability of connecting. In the preferred embodiment, for example, the axial limiting table 111 is a transition surface that is formed by deforming the free end of the adapting outer conductor 1 in the direction away from the axis to form a horn bayonet and has an arc surface, a spherical surface, and the like with gradually increasing outer diameters; the deflection of the free end of the switching outer conductor 1 can be equal to the deflection of the switching inner conductor 2, the switching outer conductor 2 which is consistent with the deflection of the switching inner conductor 2 is deformed, the board-to-board or the board-to-module can be guaranteed, the outer conductor cannot interfere when the inner conductor does not interfere, the deformation of the outer conductor due to interference is avoided, and the overall reliability and the matching performance of the inside and the outside are improved.
In the embodiment of the present disclosure, a specific arrangement may be that the transition outer conductor 1 includes a tubular transition body 12, at least one end of the transition body 12 is provided with an end portion having radial elastic deformation, and an axial limiting table 111 is arranged outside the end portion having radial elastic deformation. For example, the end of the radial elastic deformation is a structure formed by a plurality of split bodies arranged along the circumferential gap of the tubular transition body 12, the free end of the switching outer conductor 1 is arranged at the end of the split body and is deformed in the direction away from the axis to form a horn bayonet, and the split body is a transition surface of an arc surface, a spherical surface and the like with gradually increased outer diameter, the switching outer conductor 1 is ensured to have radial deformation in a certain range, meanwhile, the axial relative displacement is avoided or reduced through the arrangement of the axial limiting table 111, and the performance of low intermodulation under the vibration condition is met.
In the embodiment of the present disclosure, as a specific case, the transition outer conductor 1 includes a tubular transition body 12, a first transition joint 11 is disposed at one end of the transition body 12, and an axial limiting table 111 is disposed outside an end of the first transition joint 11; the other end of the transition body 12 is provided with a second adapter 13, and the second adapter 13 is externally provided with an adapter 131. One end of the switching outer conductor 1 is provided with a transition surface which is arranged at the end part of the split body, is deformed from the free end of the switching outer conductor 1 to the direction away from the axis to form a horn bayonet and is an arc surface, a spherical surface and the like with gradually increased outer diameter, the switching outer conductor 1 is ensured to have radial deformation in a certain range, and meanwhile, the axial relative displacement is avoided or reduced through the arrangement of the axial limiting table 111, so that the low intermodulation performance under the vibration condition is met; the other end of the switching outer conductor 1 is provided with a common switching connection structure, such as a switching table 131, and the switching table 131 is a common boss structure, i.e. an annular protruding table, and has a certain axial limiting function and a certain deflection support.
In an embodiment of the present disclosure, the end portion elastically deformed in the radial direction is a plurality of segments arranged along the circumferential gap; the outer diameter of the axial limiting table 111 close to the end part is gradually increased. The split structure ensures the radial elastic deformation capacity, the outer diameter of the axial limiting table 111 close to the end part is gradually increased, the adapter rotates relative to the connector around the central shaft while the axial and radial offset is met, no relative displacement or small relative displacement exists in the Y direction, and the low intermodulation performance under the vibration condition is met.
In the embodiment of the present disclosure, the transition insulator includes a first transition insulator 3 and a second transition insulator 4, and the first transition insulator 3 and the second transition insulator 4 perform support isolation of the transition inner conductor 2 and the transition outer conductor 1 at the ends, respectively. The support isolation at the end portion meets the use requirement of the device, and meanwhile, the mounting process of integrally arranging the insulator is simplified.
In the embodiment of the present disclosure, the adapting inner conductor 2 includes an inner conductor adapting rod 21, an inner conductor buffer head 22 is disposed at an end of the inner conductor adapting rod 21, the inner conductor buffer head 22 is a cavity structure with a radial elastic deformation member at an end, and an inner diameter of a cavity of the inner conductor buffer head 22 gradually increases along an inserting direction. The radio frequency connector disclosed by the invention can compensate the installation deviation in the board-to-board connection, and has larger power capacity and higher deviation compatibility by utilizing the frustum jack, namely the buffer cavity 221 arranged at the free end, so that excellent mechanical reliability and electrical performance can be contributed in a whole system, and quick assembly and disassembly can be realized; due to the arrangement of the buffer cavity 221, the lever-type vertex has no interference after the insertion, and the fatigue stress limit of the lever-type contact is much smaller than that of a lever-type contact fatigue stress limit of a common structure; meanwhile, as the lever type peak and the fulcrum do not have lever type unstable contact, the dynamic intermodulation performance of the lever type liquid crystal display is superior to that of a common structure.
In the embodiment of the present disclosure, the adapting inner conductor 2 includes an inner conductor adapting rod 21, an inner conductor buffer head 22 is disposed at an end of the inner conductor adapting rod 21, the inner conductor buffer head 22 includes a buffer cavity 221, and a closing-up elastic body 222 having radial deformation is disposed at an end of the buffer cavity 221; the inner diameter of the buffer chamber 221 gradually increases along the plugging direction. During the use, at the free end of switching inner conductor 2, its mouth part is realized through deformation technology and the timely effect processing of management and control material, and the deformation range of switching inner conductor 2 among the prior art is less, makes inner conductor single lamella warp one by hand. The switching inner conductor 2 disclosed by the invention uses a mechanical arm to carry out layer-feeding type stage deformation on a single lobe, so that the single lobe reaches a larger deformation amplitude, and the single lobe is subjected to post-treatment by a step aging method combining underaging and peak aging. The large-amplitude deformation is increased, the deformation is in the radial size range of phi 0.4-phi 1.2, and after the adapter needle is inserted, the radial distance between the contact point and the bottom of the hole reaches 0.05-0.5 mm of deflection space. The structure enables the inner cavity of the inner conductor to have more (0.05-0.5) X2 annular spaces than the inner cavity of the common inner conductor, so that when the inner conductor deflects (0.05-0.5), the X2 annular spaces can greatly delay the interference of the lever type peak A, the stress of the switching inner conductor 2 and the inner conductor 62 of the second connector is obviously reduced, and the deflection angle between the switching inner conductor 2 and the inner conductor 62 of the second connector is greatly improved. Therefore, the radial deviation of the system is improved, the stress fatigue is reduced, and the structural stability and reliability are improved. In the insertion process, the radial resistance and the axial resistance of the structure in the prior art are very large due to the existence of interference points, the abrupt change of hard contact force is also very large, and the hand feeling is poor, while the structure disclosed by the invention has no interference, so that the force is soft, and the insertion hand feeling is good.
With reference to fig. 1-3, the radio frequency connector of the present invention includes a first connector 5, an adapter and a second connector 6, which are sequentially inserted along an axial direction, wherein the adapter is the adapter of the present disclosure. Due to the spherical hinge-type engagement of the axial stop 111 with the switching inner conductor 2, the adapter is only relatively deflected with respect to the first connector 5, without play in the axial direction of the first connector 5. The aperture of the fixed end of the inner conductor 2 is 0.4-1.2 mm, the free end deforms to the direction close to the axis to form a frustum jack, namely a transition cavity 222, and the aperture of the bottom surface of the transition cavity 222 is 0.10-0.30 mm larger than that of the top surface. When the adapter pin is inserted into the adapting inner conductor 2 from the free end in a matching way, an annular deflection space with the thickness of 0.05-0.15 mm is formed between the contact point and the undeformed side wall of the adapting inner conductor 2.
The first connector 5 comprises a first connector outer conductor 51, a first connector inner conductor 52 and a first connector insulator 53, the first connector inner conductor 52 is plugged with an adapter inner conductor on the adapter, particularly through an inner conductor buffer head 22, the second connector 6 comprises a second connector outer conductor 61, a second connector inner conductor 62 and a second connector insulator 63, the second connector inner conductor 62 is plugged with the inner conductor buffer head 22 at the other end of the adapter inner conductor 2, the matching relation when a high-power and large-tolerance plate-to-plate structure is connected is achieved, wherein in a working state with a center line of the first connector 5 and the second connector 6 being centered, the first connector outer conductor 51 and the second connector outer conductor 61 are connected through elastic contact of the adapter outer conductor 1, the first connector outer conductor 51 and the second connector outer conductor 61 are in continuous, and in a deviated working state with installation deviation D1 of the first connector 5 and the second connector 6, the first connector outer conductor 5 and the second connector outer conductor 51 are in a public state, the central axis of the adapter can be deflected, the central axis of the adapter, the central axis of the adapter can be deflected, the central axis of the central connector can be deflected, the central axis of the central connector, the central axis of the central connector can be deflected, the central axis of the central connector, the central axis of the central axis.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of the various embodiments of the present disclosure can be made, and the same should be considered as the inventive content of the present disclosure, as long as the combination does not depart from the spirit of the present disclosure.
Claims (10)
1. An adapter comprises an adapter outer conductor (1), an adapter inner conductor (2) and an adapter insulator, and is characterized in that the adapter outer conductor (1) at least comprises an end part with radial elastic deformation, and an axial limiting table (111) is arranged outside the end part with radial elastic deformation;
the axial limiting table (111) is an arc-shaped surface with gradually enlarged outer diameter.
2. An adaptor according to claim 1, characterised in that the outer adaptor conductor (1) comprises a tubular transition body (12), at least one end of the transition body (12) being provided with a radially elastically deformable end portion, and an axial stop (111) being provided outside the radially deformable end portion.
3. The adapter according to claim 1, characterized in that the adapter outer conductor (1) comprises a tubular transition body (12), a first adapter (11) is arranged at one end of the transition body (12), and an axial limiting table (111) is arranged outside the end of the first adapter (11);
the other end of the transition body (12) is provided with a second adapter (13), and a switching platform (131) is arranged outside the second adapter (13).
4. An adaptor according to claim 1, 2 or 3 wherein the radially resiliently deformable end portions are a plurality of segments arranged with circumferential clearance; the outer diameter of the axial limiting table (111) close to the end part is gradually increased.
5. An adapter according to claim 1, 2 or 3, characterized in that the adapter insulator comprises a first adapter insulator (3) and a second adapter insulator (4), the first adapter insulator (3) and the second adapter insulator (4) being provided at the ends for the supporting isolation of the adapter inner conductor (2) and the adapter outer conductor (1), respectively.
6. The adapter according to claim 1, 2 or 3, wherein the adapter inner conductor (2) comprises an inner conductor adapter rod (21), an inner conductor buffer head (22) is arranged at the end part of the inner conductor adapter rod (21), the inner conductor buffer head (22) is of a cavity structure with a radial elastic deformation piece at the end part, and the inner diameter of the cavity of the inner conductor buffer head (22) is gradually increased along the plugging direction.
7. An adapter according to claim 1, 2 or 3, characterized in that the adapter inner conductor (2) comprises an inner conductor adapter rod (21), an inner conductor buffer head (22) is arranged at the end of the inner conductor adapter rod (21), the inner conductor buffer head (22) comprises a buffer cavity (221), and a closing-in elastic body (222) with radial deformation is arranged at the end of the buffer cavity (221); the inner diameter of the cavity body of the buffer cavity (221) is gradually increased along the plugging direction.
8. A radio-frequency connector comprising a first connector (5), an adapter and a second connector (6) which are axially and sequentially plugged, wherein the adapter is an adapter according to any one of claims 1 to 7.
9. The RF connector according to claim 8, wherein the axial runout distance between the adaptor and the first connector (5) is 0-0.4 mm;
the axis deflection distance between the adapter and the second connector (6) is 0.05-0.15 mm.
10. The RF connector according to claim 8, wherein the first connector (5) has a length of 0.5-4.0 mm, and the second connector (6) has a length of 0.5-4.0 mm;
the concentricity of the first connector (5) and the second connector (6) is 0.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920827549.6U CN210120293U (en) | 2019-06-03 | 2019-06-03 | Adapter and radio frequency connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920827549.6U CN210120293U (en) | 2019-06-03 | 2019-06-03 | Adapter and radio frequency connector |
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| Publication Number | Publication Date |
|---|---|
| CN210120293U true CN210120293U (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920827549.6U Active CN210120293U (en) | 2019-06-03 | 2019-06-03 | Adapter and radio frequency connector |
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| Country | Link |
|---|---|
| CN (1) | CN210120293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111146623A (en) * | 2020-03-10 | 2020-05-12 | 江苏正恺电子科技有限公司 | Connector capable of realizing radial deflection and axial movement |
-
2019
- 2019-06-03 CN CN201920827549.6U patent/CN210120293U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111146623A (en) * | 2020-03-10 | 2020-05-12 | 江苏正恺电子科技有限公司 | Connector capable of realizing radial deflection and axial movement |
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