CN107634360B - Blind-matched radio frequency adapter - Google Patents
Blind-matched radio frequency adapter Download PDFInfo
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- CN107634360B CN107634360B CN201710899267.2A CN201710899267A CN107634360B CN 107634360 B CN107634360 B CN 107634360B CN 201710899267 A CN201710899267 A CN 201710899267A CN 107634360 B CN107634360 B CN 107634360B
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- 239000004020 conductor Substances 0.000 claims abstract description 31
- 230000013011 mating Effects 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims 2
- 238000012360 testing method Methods 0.000 abstract description 30
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The invention belongs to the field of rapid test of electronic products, and particularly relates to a blind-mate radio frequency adapter, which comprises an inner connector, a guide sleeve and a flange sleeve; the guide sleeve is sleeved at the blind mating end of the inner connector, the flange sleeve is sleeved at the switching end of the inner connector, and the blind mating end and the switching end of the inner connector are both connected with an external interface; the inner connector includes a conductor, a housing, and an insulating layer; the insulating layer wraps the periphery of the conductor, and the conductor and the insulating layer are integrally fixed in the shell along the central axis of the shell. The adapter has the advantages of quick plugging, floatability and blind matching, improves the testing efficiency on the premise of not reducing the testing accuracy, and meets the quick testing requirement of product batch.
Description
Technical Field
The invention belongs to the field of rapid test of electronic products, and particularly relates to a blind-mate radio frequency adapter.
Background
In the use process of all electronic products before and even after delivery, a series of performance tests are carried out to discover and remove faults in advance, so that the product quality is ensured. With the progress of technology, many radars are phased array systems, a transceiver system is composed of thousands of microwave transceiver components, the development direction of the microwave transceiver components of the radars is miniaturization, integration and modularization, one transceiver component can integrate dozens of channels, each channel has a corresponding interface, and the number of tested interfaces is tens of thousands.
The radio frequency coaxial connector is a radio frequency coaxial connector with a threaded connection mechanism, and has the characteristics of strong vibration resistance, excellent performance, high reliability and the like. The device is widely applied to electronic equipment and instruments and meters, and is reliable in connection.
At present, in a test system of a microwave transceiver component, a threaded connection mode is generally adopted between an interface test system and a tested interface, but the connection mode has the defects of low disassembly and assembly efficiency, complex disassembly and the like, and is difficult to meet the rapid test requirement of product batch.
Disclosure of Invention
According to the problems in the prior art, the invention provides the blind matching radio frequency adapter, which has the advantages of quick plugging, floatability and blind matching, improves the testing efficiency on the premise of not reducing the testing accuracy, and meets the quick testing requirement of product batch.
The invention adopts the following technical scheme:
a blind-mate radio frequency adapter comprises an inner connector, a guide sleeve and a flange sleeve; the two ends of the inner connector are respectively a switching end and a blind matching end, the guide sleeve is sleeved at the blind matching end of the inner connector, and the flange sleeve is sleeved on the cylinder body between the switching end and the blind matching end of the inner connector.
Preferably, the inner connector comprises a conductor, a housing and an insulating layer; the insulating layer wraps the periphery of the conductor, and the conductor and the insulating layer are integrally fixed in the shell along the central axis of the shell.
Further preferably, the conductor comprises two sections of cylinders with different diameters, namely a thick cylinder close to the switching end and a thin cylinder close to the blind mating end, which are fixedly connected; a gap is arranged between the thin cylinder and the inner surface of the insulating layer, and the top end of the thin cylinder is in a shape of a circular truncated cone; the outer surface of the thick cylinder is wrapped by an insulating layer, and the insulating layer protrudes out of the top end of the thick cylinder along the axial direction of the conductor to form a jack.
Still more preferably, an elastic clamping piece is arranged on the outer surface of the insulating layer close to the blind matching end; the elastic clamping piece is tubular, and a plurality of gaps which are uniformly distributed are formed in the pipe wall of the elastic clamping piece along the axial direction of the conductor.
Still more preferably, the diameter of the cylindrical section of the shell on the blind mating end side is largest to form a large-diameter cylindrical section, the diameter of the cylindrical section on the switching end side is smallest to form a small-diameter cylindrical section, and a middle cylindrical section is formed between the large-diameter cylindrical section and the small-diameter cylindrical section; threads are arranged on the outer surfaces of the large-diameter cylindrical section and the small-diameter cylindrical section, and a clamping groove is formed in the outer surface of the middle cylindrical section, which is close to the small-diameter cylindrical section.
Still more preferably, the guide sleeve is fixedly connected with the large-diameter cylindrical section of the shell through threads; the flange sleeve is sleeved on the middle cylindrical section, and a retainer ring is clamped in the clamping groove; an elastic component is arranged in the flange sleeve, one end of the elastic component is abutted against the inner end face of the top of the flange sleeve, which is close to the small-diameter cylindrical section, and the other end of the elastic component is abutted against the bottom face of the large-diameter cylindrical section, and the outer end face of the top of the flange sleeve, which is close to the small-diameter cylindrical section, is abutted against the retainer ring.
Still further preferably, the flange sleeve comprises a flange and a sleeve, the flange is arranged at the top of the flange sleeve close to the small-diameter cylindrical section, and the flange and the sleeve are both sleeved on the middle cylindrical section; the inner diameter of the flange is larger than the outer diameter of the middle cylindrical section, and the inner diameter of the sleeve is larger than the inner diameter of the flange.
Still further preferably, the elastic component comprises a gasket and a spring, wherein the gasket is abutted against the inner end face of the flange, the spring is sleeved on the middle cylindrical section, one end of the spring is abutted against the gasket, and the other end of the spring is abutted against the bottom face of the large-diameter cylindrical section; the inner diameter of the sleeve is larger than the outer diameter of the large-diameter cylindrical section.
Still more preferably, the inner diameter of the outer side port of the guide sleeve is gradually reduced from outside to inside, and then the guide sleeve is in a constant diameter shape, and the minimum inner diameter of the outer side port of the guide sleeve is larger than the outer diameter of the elastic clamping piece.
Still more preferably, the thin cylinder of the conductor near the blind mating end is connected to the TNC-K interface and the thick cylinder of the conductor near the transition end is connected to the TNC-J interface.
The invention has the beneficial effects that:
1) In the invention, the outer surface of the insulating layer close to the blind matching end is provided with the elastic clamping piece, the elastic clamping piece is tubular, and the pipe wall of the elastic clamping piece is provided with a plurality of gaps which are uniformly distributed along the axial direction of the conductor. When the tested port is connected with the blind mating end of the adapter, the tested interface is inserted between the large cylindrical port and the elastic clamping piece, and due to deformation of the elastic clamping piece and limit fit of the guide sleeve, the tested interface is tightly combined with the adapter, so that quick plugging and unplugging are realized, the testing efficiency is improved, and the quick testing requirement of product batch is met.
2) In the invention, the inner diameter of the outer side port of the guide sleeve is gradually reduced from outside to inside and is in a constant diameter shape, and the minimum inner diameter of the outer side port of the guide sleeve is larger than the outer diameter of the elastic clamping piece. The design that the inner diameter of the outer side port of the guide sleeve gradually becomes smaller from outside to inside makes when the blind matching end of the adapter is connected with the tested interface, the tested interface can guide the tested interface into the guide sleeve when the tested interface is not accurately aligned with the blind matching end, the purpose of blind matching is achieved, and the testing efficiency is improved.
3) In the invention, the flange sleeve comprises a flange and a sleeve, an elastic component consisting of a gasket and a spring is arranged in the sleeve, the flange sleeve and the spring are sleeved on the middle cylindrical section, one end of the spring is abutted against the gasket, and the other end is abutted against the bottom surface of the large-diameter cylindrical section; the retainer ring is clamped in the clamping groove, and the flange is abutted against the retainer ring near the outer end face of the top of the small-diameter cylindrical section. When the tested interface is tested, the flange is fixed on the side wall of the box body, and at the moment, when the blind matching end of the adapter is connected with the tested interface, if the blind matching end is limited by space or influenced by the installation error of the tested interface, the conventional adapter is difficult or impossible to be accurately connected with the tested interface; the spring and the flange sleeve are matched, so that when the flange of the flange sleeve is fixed on the side wall of the box body, the inner connector and the guide sleeve can float in the axial direction and the radial direction, design and assembly errors can be made up, and the angle and the position of the inner connector and the guide sleeve relative to the interface to be tested are adjustable, so that the adaptability is high.
Drawings
Fig. 1 is a perspective exploded view of an adapter of the present invention.
Fig. 2a and 2b are perspective structural views of a blind mating end and an adapting end of the adapter according to the present invention, respectively.
Fig. 3 is a front view of the adapter of the present invention.
Fig. 4a and 4b are left and right views, respectively, of the adapter of the present invention.
Fig. 5 is a cross-sectional view of the adapter of the present invention.
Fig. 6 is a cross-sectional view of the inner connector of the present invention.
Fig. 7a, 7b and 7c are schematic views of the adaptor according to the present invention before the adaptor is connected to the interface to be tested, and the adaptor is partially connected to the interface to be tested, and is completely connected to the interface to be tested.
Fig. 8a and 8b are respectively a test data graph of the adapter of the present invention and a test data graph of a conventional threaded connection adapter.
Reference numerals: 1-connector, 2-guide sleeve, 3-flange sleeve, 4-box sidewall, 11-conductor, 12-shell, 13-insulating layer, 31-retainer ring, 32-flange, 33-sleeve, 34-elastic component, 35-gasket, 36-spring, 121-screw thread, 122-draw-in groove, 131-elastic clamping piece.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, 2a, 2b, 3, 4a and 4b, the blind-mate radio frequency adapter comprises an inner connector 1, a guide sleeve 2 and a flange sleeve 3; the guide sleeve 2 is sleeved at the blind mating end of the inner connector 1, the flange sleeve 3 is sleeved at the switching end of the inner connector 1, and the blind mating end and the switching end of the inner connector 1 are both connected with an external interface.
The inner connector 1 comprises a conductor 11, a housing 12 and an insulating layer 13; the insulating layer 13 is wrapped around the periphery of the conductor 11, and the conductor 11 and the insulating layer 13 are integrally fixed in the housing 12 along the central axis of the housing 12.
As shown in fig. 5 and 6, the conductor 11 comprises two sections of fixedly connected cylinders with different coaxial diameters, namely a thick cylinder near the switching end and a thin cylinder near the blind mating end; a gap is arranged between the thin cylinder and the inner surface of the insulating layer 13, and the top end of the thin cylinder is in a truncated cone shape; the outer surfaces of the thick cylinders are all wrapped by the insulating layer 13, and the insulating layer 13 protrudes from the top end of the thick cylinder along the axial direction of the conductor 11 to form a jack.
An elastic clamping piece 131 is arranged on the outer surface of the insulating layer 13 close to the blind matching end; the elastic clamping member 131 is tubular, and a plurality of evenly distributed gaps are formed in the tube wall of the elastic clamping member 131 along the axial direction of the conductor 11.
The diameter of the cylindrical section of the shell 12 positioned at the blind matching end side is the largest to form a large-diameter cylindrical section, the diameter of the cylindrical section positioned at the switching end side is the smallest to form a small-diameter cylindrical section, and a middle cylindrical section is formed between the large-diameter cylindrical section and the small-diameter cylindrical section; threads 121 are arranged on the outer surfaces of the large-diameter cylindrical section and the small-diameter cylindrical section, and a clamping groove 122 is arranged on the outer surface of the middle cylindrical section, which is close to the small-diameter cylindrical section.
The guide sleeve 2 is fixedly connected with the large-diameter cylindrical section of the shell 12 through threads; the flange sleeve 3 is sleeved on the middle cylindrical section, a gap is arranged between the flange sleeve 3 and the middle cylindrical section, and the retainer ring 31 is clamped in the clamping groove 122; an elastic component 34 is arranged in the flange sleeve 3, one end of the elastic component 34 is abutted against the inner end face of the top of the flange sleeve 3, which is close to the small-diameter cylindrical section, while the other end is abutted against the bottom face of the large-diameter cylindrical section, and the outer end face of the top of the flange sleeve 3, which is close to the small-diameter cylindrical section, is abutted against the retainer ring 31.
The flange sleeve 3 comprises a flange 32 and a sleeve 33, the flange 32 is arranged at the top of the flange sleeve 3 close to the small-diameter cylindrical section, and the flange 32 and the sleeve 33 are both sleeved on the middle cylindrical section; the flange 32 has an inner diameter greater than the outer diameter of the intermediate cylindrical section and the sleeve 33 has an inner diameter greater than the inner diameter of the flange 32.
The elastic assembly 34 comprises a gasket 35 and a spring 36, the gasket 35 is abutted against the inner end face of the flange 31, the spring 36 is sleeved on the middle cylindrical section, one end of the spring 35 is abutted against the gasket 34, and the other end is abutted against the bottom face of the large-diameter cylindrical section; the inner diameter of the sleeve 33 is larger than the outer diameter of the large diameter cylindrical section.
The inner diameter of the outer side port of the guide sleeve 2 is gradually reduced from outside to inside, and then the guide sleeve is in a constant diameter shape, and the minimum inner diameter of the outer side port of the guide sleeve 2 is larger than the outer diameter of the elastic clamping piece 131.
The thin cylinder of conductor 11 near the blind mating end connects to the TNC-K interface and the thick cylinder of conductor 11 near the transition end connects to the TNC-J interface.
As shown in fig. 7a, 7b and 7c, when the adaptor of the present invention is used, the thick cylinder of the inner conductor 11 near the adaptor end is fixedly connected with the testing system, and the flange 32 of the flange sleeve 3 is fixed on the side wall 4 of the box body.
When the blind matching end of the adapter is connected with a tested interface, if the blind matching end is limited by space or errors exist in the installation of the tested interface, because the flange 32 of the flange sleeve 3 is fixed on the side wall 4 of the box body, the inner connector 1 and the guide sleeve 2 can float in the axial direction and the radial direction, so that the angle and the position of the inner connector 1 and the guide sleeve 2 relative to the tested interface are adjustable, and the tested interface can enter the guide sleeve 2 through the guide of the outer side port of the guide sleeve 2 without very accurate alignment of the blind matching end due to the guiding action of the guide sleeve 2.
After the tested interface enters the guide sleeve 2, the tested interface is inserted between the large cylindrical port and the elastic clamping piece 131, and the tested interface is tightly combined with the adapter due to the deformation of the elastic clamping piece 131 and the limit fit of the guide sleeve 2, so that the thin cylinder of the inner conductor 11 is fixedly connected with the tested interface, and the tested interface and the adapter are quickly inserted and pulled out.
The adapter has the advantages of quick plugging, floatability and blind matching, and meanwhile, the adapter needs to be verified that the adapter does not influence the test accuracy. The main performance indexes of the radio frequency adapter comprise an input standing wave ratio, an insertion loss, an opposite phase insertion loss and an output standing wave ratio, so that the adapter and the conventional adapter can be tested respectively, and whether the adapter is connected with a tested interface in a plugging mode or not can be verified to influence the testing accuracy by comparing four parameters of the input standing wave ratio, the insertion loss, the opposite phase insertion loss and the output standing wave ratio and referencing the requirement index.
As shown in fig. 8a and 8b, fig. 8a shows a test data diagram of the adapter of the present invention, and fig. 8b shows a test data diagram of the adapter of the conventional screw connection.
The test chart of fig. 8a can be used to obtain the test data of the adapter of the present invention, as shown in table 1.
Table 1:
the test pattern of fig. 8b allows the relevant test data for conventional threaded connection adapters to be obtained, as shown in table 2.
Table 2:
a comparison of the performance parameters of the inventive adapter with conventional threaded connection adapters can be found from the relevant test data of tables 1 and 2, as shown in table 3.
Table 3:
as can be seen from table 3, the performance parameters of the conventional threaded connection adapter and the adapter of the present invention are relatively close, wherein the input standing wave ratio is less than the requirement index of 1.2, the insertion loss is less than the requirement index of 0.5db, the reverse insertion loss is less than the requirement index of 0.5db, and the output standing wave ratio is less than the requirement index of 1.2.
It can be concluded that the adapter of the present invention has the advantages of quick insertion, floatability, blindability, and no impact on the test accuracy, compared to conventional threaded adapters.
In summary, the invention provides a blind-mate radio frequency adapter, which has the advantages of quick plugging, floatability and blind-mate, improves the testing efficiency on the premise of not reducing the testing accuracy, and meets the quick testing requirement of product batch.
Claims (2)
1. A blind mate radio frequency adapter, characterized by: comprises an inner connector (1), a guide sleeve (2) and a flange sleeve (3); the two ends of the inner connector (1) are respectively a switching end and a blind matching end, the guide sleeve (2) is sleeved at the blind matching end of the inner connector (1), and the flange sleeve (3) is sleeved on the cylinder body between the switching end and the blind matching end of the inner connector (1);
the inner connector (1) comprises a conductor (11), a housing (12) and an insulating layer (13); the insulation layer (13) is wrapped on the periphery of the conductor (11), and the whole body formed by the conductor (11) and the insulation layer (13) is fixed in the shell (12) along the central axis of the shell (12);
the conductor (11) comprises two sections of cylinders with different coaxial diameters which are fixedly connected, namely a thick cylinder close to the switching end and a thin cylinder close to the blind matching end; a gap is arranged between the thin cylinder and the inner surface of the insulating layer (13), and the top end of the thin cylinder is in a truncated cone shape; the outer surfaces of the thick cylinders are wrapped by insulating layers (13), and the insulating layers (13) protrude out of the top ends of the thick cylinders along the axial direction of the conductors (11) to form jacks;
an elastic clamping piece (131) is arranged on the outer surface of the insulating layer (13) close to the blind matching end; the elastic clamping piece (131) is tubular, and a plurality of gaps which are uniformly distributed are formed in the pipe wall of the elastic clamping piece (131) along the axial direction of the conductor (11);
the diameter of the cylindrical section of the shell (12) positioned at the blind matching end side is the largest to form a large-diameter cylindrical section, the diameter of the cylindrical section positioned at the switching end side is the smallest to form a small-diameter cylindrical section, and a middle cylindrical section is formed between the large-diameter cylindrical section and the small-diameter cylindrical section; threads (121) are arranged on the outer surfaces of the large-diameter cylindrical section and the small-diameter cylindrical section, and a clamping groove (122) is formed in the outer surface of the middle cylindrical section, which is close to the small-diameter cylindrical section;
the guide sleeve (2) is fixedly connected with the large-diameter cylindrical section of the shell (12) through threads; the flange sleeve (3) is sleeved on the middle cylindrical section, a gap is formed between the flange sleeve (3) and the middle cylindrical section, and a retainer ring (31) is clamped in the clamping groove (122); an elastic component (34) is arranged in the flange sleeve (3), one end of the elastic component (34) is abutted against the inner end face of the top of the flange sleeve (3) close to the small-diameter cylindrical section, the other end of the elastic component is abutted against the bottom face of the large-diameter cylindrical section, and the outer end face of the top of the flange sleeve (3) close to the small-diameter cylindrical section is abutted against the retainer ring (31);
the flange sleeve (3) comprises a flange (32) and a sleeve (33), the flange (32) is arranged at the top of the flange sleeve (3) close to the small-diameter cylindrical section, and the flange (32) and the sleeve (33) are sleeved on the middle cylindrical section; the inner diameter of the flange (32) is larger than the outer diameter of the middle cylindrical section, and the inner diameter of the sleeve (33) is larger than the inner diameter of the flange (32);
the elastic assembly (34) comprises a gasket (35) and a spring (36), wherein the gasket (35) is abutted against the inner end face of the flange (32), the spring (36) is sleeved on the middle cylindrical section, one end of the spring (36) is abutted against the gasket (35), and the other end of the spring is abutted against the bottom face of the large-diameter cylindrical section; the inner diameter of the sleeve (33) is larger than the outer diameter of the large-diameter cylindrical section;
the inner diameter of the outer side port of the guide sleeve (2) is gradually reduced from outside to inside and is in a constant diameter shape, and the minimum inner diameter of the outer side port of the guide sleeve (2) is larger than the outer diameter of the elastic clamping piece (131).
2. A blind mate radio frequency adapter according to claim 1, wherein: the thin cylinder of the conductor (11) near the blind mating end is connected with a TNC-K interface, and the thick cylinder of the conductor (11) near the transfer end is connected with a TNC-J interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710899267.2A CN107634360B (en) | 2017-09-28 | 2017-09-28 | Blind-matched radio frequency adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710899267.2A CN107634360B (en) | 2017-09-28 | 2017-09-28 | Blind-matched radio frequency adapter |
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| Publication Number | Publication Date |
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| CN107634360A CN107634360A (en) | 2018-01-26 |
| CN107634360B true CN107634360B (en) | 2023-11-21 |
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| CN201710899267.2A Active CN107634360B (en) | 2017-09-28 | 2017-09-28 | Blind-matched radio frequency adapter |
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| CN111384639B (en) * | 2018-12-28 | 2024-09-17 | 富士康(昆山)电脑接插件有限公司 | Test connector assembly |
| CN111384640A (en) * | 2018-12-28 | 2020-07-07 | 富士康(昆山)电脑接插件有限公司 | Test connector assembly |
| CN109546447A (en) * | 2018-12-29 | 2019-03-29 | 京信通信系统（中国）有限公司 | Connector test structure |
| CN110459913B (en) * | 2019-08-16 | 2021-01-22 | 贵州航天电器股份有限公司 | Floating connector |
| CN114371456B (en) * | 2021-12-30 | 2023-03-28 | 广东纳睿雷达科技股份有限公司 | T/R assembly test fixture |
| CN114744456B (en) * | 2022-04-28 | 2023-04-07 | 南京航空航天大学 | Adapter device of IPMC pipe and guide pipe |
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|---|---|
| CN107634360A (en) | 2018-01-26 |
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