CN103904482A - Axial floating structure of coaxial contact element - Google Patents
Axial floating structure of coaxial contact element Download PDFInfo
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- CN103904482A CN103904482A CN201410149241.2A CN201410149241A CN103904482A CN 103904482 A CN103904482 A CN 103904482A CN 201410149241 A CN201410149241 A CN 201410149241A CN 103904482 A CN103904482 A CN 103904482A
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- sliding sleeve
- outer conductor
- coaxial contact
- contact piece
- endoporus
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Abstract
The invention provides an axial floating structure of a coaxial contact element. The axial floating structure of the coaxial contact element comprises an outer conductor, a sliding sleeve, a sheath, an inner conductor, a spring and the like. A thin cylindrical structure extends out of the front end of the outer conductor. The outer circle surface of the cylindrical structure is sleeved with the sliding sleeve. The spring is arranged between the end face of the sliding sleeve and the step surface of the outer conductor in a sleeved mode. The sheath is arranged outside the sliding sleeve located at the front end of the conductor and the spring. The inner conductor is arranged in the sliding sleeve and located in an inner hole of the outer conductor. The matched section between the inner conductor and the sliding sleeve and the matched section between the inner conductor and the inner hole of the outer conductor are both air insulating mediums. The insertion end of the inner conductor is of a contact pin structure and is of a step cylinder structure with the depth being decreased in the axial direction. The insertion end of the inner conductor is matched with the sliding sleeve and the inner hole of the front end of the outer conductor. A part of the cylinder section with the smaller diameter extends into an inner hole of the sliding sleeve. By the adoption of the axial floating structure of the coaxial contact element, when a cable is in the fixed state, the coaxial contact axial floating function is achieved, the radio frequency transmission performance of the coaxial contact element is improved, and meanwhile the reliability of use is improved.
Description
Technical field
The present invention relates to a kind of coaxial contact piece axial float structure, be mainly used in the technical field of electric connectors that adopts coaxial contact piece transmitting radio frequency signal.
Background technology
Because coaxial contact piece volume is little, be convenient to integration of equipments, modularization growth requirement, be applied to now increasing radio frequency transmission occasion.The connector that the radio frequency (RF) coaxial connector of device interior transmitting radio frequency signal is progressively integrated multichannel coaxial contact piece substitutes.Coaxial contact piece is made up of outer conductor, inner wire and the dielectric that is filled between inner and outer conductor, between the inner wire of paired a pair of coaxial contact piece, between outer conductor, there is respectively male and female interfix structure, what this type of contact was desirable plugs together situation is that internal and external conductor plugs together and puts in place simultaneously, and meets the requirement of electrical connection length.But the inner and outer conductor of existing coaxial contact piece is mostly the integrative-structure of rigidity, in use, due to part's machining errors and alignment error, after connector plug and socket plug together and put in place, coaxial contact piece plugs together interfacial gap and can not eliminate, and causes that interface internal and external conductor can not close contact, cause larger signal reflex and decay, thereby affect the radio frequency transmission performance of connector.
In addition, existing float type coaxial contact piece adopts overall floating structure, and the type contact is in axial float process, and afterbody terminated cable is along with contact moves together, and after terminated cable is fixing, contact is just relatively fixing.In use, tail end terminated cable is very easily subject to external force impact to connector.Due to the type coaxial contact piece and cable one, cable is subject to external force and is directly relayed to contact, causes that termination position stress is concentrated, reduces dependability; Cable is subject to axial force, moves after causing contact, causes the coaxial contact of interconnection to throwing off when the limit, causes that contact lost efficacy.
Summary of the invention
The object of the present invention is to provide a kind of coaxial contact piece floating structure, this structure applications, in coaxial contact piece, can realize coaxial contact piece and plug together interface axis to float function under the reliable fixation case of afterbody terminated cable.
The technical solution adopted in the present invention is: a kind of coaxial contact piece axial float structure, this structure comprises outer conductor, sliding sleeve, sheath, inner wire, spring etc.Outer conductor front end stretches out thinner columnar structured, on cylindrical shape periphery, is set with sliding sleeve.Be provided with evagination step away from mating side, pocketed springs between sliding sleeve end face and outer conductor step surface at outer conductor and the sliding sleeve periphery that is slidably matched.At outer conductor front end sliding sleeve and the outside suit of spring sheath.
Described sliding sleeve and outer conductor nose circle tubular periphery are made as little gap and are slidably matched.The gap that is slidably matched between sliding sleeve and outer conductor is very little, negligible compared with contact internal transmission electromagnetic wavelength, does not affect frequency electromagnetic waves transmission therein.
Between described spring and outer conductor, be provided with radial clearance, spring is initially pressured state.
Described sheath is fixedly connected with outer conductor; Between sheath endoporus and sliding sleeve and spring, be provided with gap; Sheath is provided with guiding taper hole near mating side; Sheath endoporus is provided with limited step near mating side, limit slippage sleeve axial location.
In sliding sleeve and outer conductor endoporus, pack inner wire into, inner wire is fixed by coaxial contact piece internal insulator, and inner wire is air dielectric with sliding sleeve and the outer conductor endoporus section of cooperation.Described inner wire mating side is contact pin structure, is step structure vertically, thicker with the sliding sleeve endoporus section of cooperation diameter, thinner with the outer conductor endoporus section of cooperation diameter.The step of inner wire thickness transition and sliding sleeve and outer conductor endoporus step stagger, and one section of thinner inner wire part is goed deep in sliding sleeve, form the impedance-compensated structure of dislocation.
The invention has the beneficial effects as follows, adopt the coaxial contact piece of axial float structure of the present invention can realize contact axial float function, after the connector of this coaxial contact piece be installed plug together, the coaxial contact piece close contact matching under the effect of spring force, can effectively eliminate the interfacial gap that plugs together due to connector mismachining tolerance and alignment error introducing, ensure the continuity of connector internal radio frequency transmission channel, promote connector radio frequency transmission performance.In addition, apply coaxial contact piece of the present invention when axial float function is provided, can effectively realize the fixing of tail cable, increased coaxial contact piece dependability, promote anti-vibration, the impact property of connector.
Brief description of the drawings
Fig. 1 is the structural representation of coaxial contact piece axial float structure of the present invention
Fig. 2 is the structural representation that the coaxial jack that adopts Fig. 1 structure and the coaxial pole matching plug together embodiment
1. inner wires in figure, 2. outer conductor, 3. sheath, 4. spring, 5. sliding sleeve, 6. socket, 7. plug, 60. coaxial jacks, 70. coaxial poles, 71. internal plug seats, 72. outer contact pins.
Embodiment
In Fig. 1, coaxial contact piece outer conductor (2) front end stretches out thinner columnar structured, at cylindrical shape periphery (21) upper suit sliding sleeve (5), between sliding sleeve (5) and cylindrical shape periphery (21), be slidably matched for little gap.Pocketed springs (4) between sliding sleeve end face (51) and outer conductor step surface (22), expand cover (3) at outer conductor front end sliding sleeve (5) and spring outside (4) assembling, in sliding sleeve (5) and outer conductor (2) endoporus, assemble inner wire (1), inner wire (1) is air dielectric with sliding sleeve (5) and outer conductor (2) the endoporus section of cooperation.Described inner wire mating side (11) is contact pin structure, is step structure vertically, and inner wire is thicker with the sliding sleeve endoporus section of cooperation (12) diameter, and inner wire is thinner with the outer conductor endoporus section of cooperation (13) diameter.The step of inner wire thickness transition and sliding sleeve and outer conductor endoporus step stagger, and thinner one section of inner wire gos deep in sliding sleeve, form dislocation impedance-compensated, ensure the consistency of coaxial contact piece internal driving, promote coaxial contact piece high-frequency transmission performance.
In Fig. 2, in socket (6), assembling adopts the coaxial jack (60) of structure of the present invention, the coaxial pole (70) of assembling coaxial jack (60) pairing in plug (7), coaxial contact piece is inner fixing at connector.Plug (7) plugs together with socket (6), drives inner coaxial pole (70) to insert coaxial jack (60).Plugging together in process, outer contact pin (72) promotes sliding sleeve (5) and moves vertically, the compression of spring (4) pressurized; Meanwhile, interior contact pin (1) inserts internal plug seat (71).Due to spring (4) pressurized, hold out against sliding sleeve (5), make sliding sleeve (5) end face and outer contact pin (72) end face close contact; Interior contact pin (1) and internal plug seat (2) contact site are at internal plug seat oral area, along with coaxial pole (70) inserts coaxial jack (60), interpolation pin plug-connection section (12) remains and internal plug seat (2) close contact.After connector plug (7) and socket (8) plug together and put in place, inner coaxial contact piece can remain close contact between internal and external conductor; Because coaxial contact piece entirety is relatively fixing in connector inside, so convenient tail cable is fixed, and effectively protects contact termination position, promotes connector anti-vibration, impact property.
Claims (7)
1. a coaxial contact piece axial float structure, comprises outer conductor, sliding sleeve, sheath, inner wire, spring, it is characterized in that: outer conductor front end stretches out thinner columnar structured, on cylindrical shape periphery, is set with sliding sleeve; Be provided with evagination step away from mating side, pocketed springs between sliding sleeve end face and outer conductor step surface at outer conductor and the sliding sleeve periphery that is slidably matched; At outer conductor front end sliding sleeve and spring external mounting sheath; In sliding sleeve and outer conductor endoporus, assemble inner wire.
2. coaxial contact piece axial float structure according to claim 1, is characterized in that: between described sliding sleeve and outer conductor nose circle tubular periphery, be made as little gap and be slidably matched.
3. coaxial contact piece axial float structure according to claim 1, is characterized in that: between described spring and outer conductor, be provided with radial clearance, spring is initially pressured state.
4. coaxial contact piece axial float structure according to claim 1, is characterized in that: described sheath is fixedly connected with outer conductor; Between sheath endoporus and sliding sleeve and spring, be provided with radial clearance; Sheath is provided with guiding taper hole near mating side; Sheath endoporus is provided with limited step near mating side, limit slippage sleeve axial location.
5. coaxial contact piece axial float structure according to claim 1, is characterized in that: described inner wire is air dielectric with sliding sleeve and the outer conductor endoporus section of cooperation.
6. coaxial contact piece axial float structure according to claim 1, it is characterized in that: described inner wire mating side is made as contact pin structure, being ladder cylindrical structural vertically, is the thicker cylindrical section of diameter with the sliding sleeve endoporus section of cooperation, is the thinner cylindrical section of diameter with the outer conductor endoporus section of cooperation.
7. coaxial contact piece axial float structure according to claim 6, it is characterized in that: the step of described inner wire ladder cylindrical structural thickness transition coordinates the endoporus Step Shaft forming to staggering with outer conductor with sliding sleeve, the cylindrical section part that diameter is thinner extend in sliding sleeve endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410149241.2A CN103904482A (en) | 2014-04-05 | 2014-04-05 | Axial floating structure of coaxial contact element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410149241.2A CN103904482A (en) | 2014-04-05 | 2014-04-05 | Axial floating structure of coaxial contact element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103904482A true CN103904482A (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410149241.2A Pending CN103904482A (en) | 2014-04-05 | 2014-04-05 | Axial floating structure of coaxial contact element |
Country Status (1)
| Country | Link |
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| CN (1) | CN103904482A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617428A (en) * | 2014-12-31 | 2015-05-13 | 镇江市明基电子有限公司 | Novel radio frequency coaxial connector |
| CN105932502A (en) * | 2016-05-31 | 2016-09-07 | 中航光电科技股份有限公司 | Contact used for radio frequency connector and radio frequency connector |
| CN106505333A (en) * | 2015-09-07 | 2017-03-15 | 京元电子股份有限公司 | Improvement type attachment means and the test interface using Improvement type attachment means |
| CN110171012A (en) * | 2019-06-28 | 2019-08-27 | 安徽巨一自动化装备有限公司 | To the floating rotating bindiny mechanism between truss manipulator and servo turntable |
| CN111146648A (en) * | 2020-01-13 | 2020-05-12 | 洛阳赛焱光电科技有限公司 | Sealed protection electric connector |
| CN111600145A (en) * | 2019-09-19 | 2020-08-28 | 上海航天科工电器研究院有限公司 | Quick-locking piston type floating power connector |
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| CN2831523Y (en) * | 2005-08-22 | 2006-10-25 | 王德言 | Lighting protection coaxial adapter |
| CN101662115A (en) * | 2009-10-02 | 2010-03-03 | 中航光电科技股份有限公司 | Floating signal contact element and electric connector using the same |
| CN201629477U (en) * | 2010-03-23 | 2010-11-10 | 贵州航天电器股份有限公司 | High-frequency adapter pin |
| CN102035092A (en) * | 2010-10-12 | 2011-04-27 | 贵州航天电器股份有限公司 | Plug of electric connector with mixed high-frequency and low-frequency contact elements |
| CN202019120U (en) * | 2010-12-15 | 2011-10-26 | 中航光电科技股份有限公司 | Coaxial connector |
| CN202094444U (en) * | 2011-02-14 | 2011-12-28 | 江苏呈飞电子有限公司 | Millimeter wave floating type blind insertion radio frequency connector |
| CN202633583U (en) * | 2012-04-06 | 2012-12-26 | 中航光电科技股份有限公司 | Radio-frequency connector and contact element thereof |
| CN102916273A (en) * | 2012-10-25 | 2013-02-06 | 成都四威高科技产业园有限公司 | High-precision radio-frequency coaxial connector structure |
| US20140024233A1 (en) * | 2012-07-19 | 2014-01-23 | Michael Holland | Moving part coaxial cable connector |
| US20140030918A1 (en) * | 2012-07-27 | 2014-01-30 | Chin Nan Precision Electronics Co., Ltd. | Coaxial probe |
| CN203826678U (en) * | 2014-04-05 | 2014-09-10 | 郑州航天电子技术有限公司 | Coaxial contact axial floating structure |
-
2014
- 2014-04-05 CN CN201410149241.2A patent/CN103904482A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2831523Y (en) * | 2005-08-22 | 2006-10-25 | 王德言 | Lighting protection coaxial adapter |
| CN101662115A (en) * | 2009-10-02 | 2010-03-03 | 中航光电科技股份有限公司 | Floating signal contact element and electric connector using the same |
| CN201629477U (en) * | 2010-03-23 | 2010-11-10 | 贵州航天电器股份有限公司 | High-frequency adapter pin |
| CN102035092A (en) * | 2010-10-12 | 2011-04-27 | 贵州航天电器股份有限公司 | Plug of electric connector with mixed high-frequency and low-frequency contact elements |
| CN202019120U (en) * | 2010-12-15 | 2011-10-26 | 中航光电科技股份有限公司 | Coaxial connector |
| CN202094444U (en) * | 2011-02-14 | 2011-12-28 | 江苏呈飞电子有限公司 | Millimeter wave floating type blind insertion radio frequency connector |
| CN202633583U (en) * | 2012-04-06 | 2012-12-26 | 中航光电科技股份有限公司 | Radio-frequency connector and contact element thereof |
| US20140024233A1 (en) * | 2012-07-19 | 2014-01-23 | Michael Holland | Moving part coaxial cable connector |
| US20140030918A1 (en) * | 2012-07-27 | 2014-01-30 | Chin Nan Precision Electronics Co., Ltd. | Coaxial probe |
| CN102916273A (en) * | 2012-10-25 | 2013-02-06 | 成都四威高科技产业园有限公司 | High-precision radio-frequency coaxial connector structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617428A (en) * | 2014-12-31 | 2015-05-13 | 镇江市明基电子有限公司 | Novel radio frequency coaxial connector |
| CN106505333A (en) * | 2015-09-07 | 2017-03-15 | 京元电子股份有限公司 | Improvement type attachment means and the test interface using Improvement type attachment means |
| CN106505333B (en) * | 2015-09-07 | 2018-12-25 | 京元电子股份有限公司 | Improvement type attachment device and the test interface for using Improvement type attachment device |
| CN105932502A (en) * | 2016-05-31 | 2016-09-07 | 中航光电科技股份有限公司 | Contact used for radio frequency connector and radio frequency connector |
| CN105932502B (en) * | 2016-05-31 | 2018-04-24 | 中航光电科技股份有限公司 | Radio frequency connector contact and radio frequency connector |
| CN110171012A (en) * | 2019-06-28 | 2019-08-27 | 安徽巨一自动化装备有限公司 | To the floating rotating bindiny mechanism between truss manipulator and servo turntable |
| CN111600145A (en) * | 2019-09-19 | 2020-08-28 | 上海航天科工电器研究院有限公司 | Quick-locking piston type floating power connector |
| CN111146648A (en) * | 2020-01-13 | 2020-05-12 | 洛阳赛焱光电科技有限公司 | Sealed protection electric connector |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140702 |