CN107910730A - Push-in type radio frequency (RF) coaxial connector partition method and push-in type radio frequency (RF) coaxial connector - Google Patents

Push-in type radio frequency (RF) coaxial connector partition method and push-in type radio frequency (RF) coaxial connector Download PDF

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Publication number
CN107910730A
CN107910730A CN201711214513.2A CN201711214513A CN107910730A CN 107910730 A CN107910730 A CN 107910730A CN 201711214513 A CN201711214513 A CN 201711214513A CN 107910730 A CN107910730 A CN 107910730A
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CN
China
Prior art keywords
module
push
radio frequency
coaxial connector
type radio
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Granted
Application number
CN201711214513.2A
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Chinese (zh)
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CN107910730B (en
Inventor
董浩
张建刚
穆晓华
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CETC 26 Research Institute
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China Electric Technology Group Chongqing Acoustic Photoelectric Co Ltd
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Application filed by China Electric Technology Group Chongqing Acoustic Photoelectric Co Ltd filed Critical China Electric Technology Group Chongqing Acoustic Photoelectric Co Ltd
Priority to CN201711214513.2A priority Critical patent/CN107910730B/en
Publication of CN107910730A publication Critical patent/CN107910730A/en
Application granted granted Critical
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591Specific features or arrangements of connection of shield to conductive members

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The invention discloses a kind of push-in type radio frequency (RF) coaxial connector partition method, the push-in type radio frequency (RF) coaxial connector is used to connect the first module and the second module, at least a pair of of socket aperture is relatively set with the joint face of first module and second module, the push-in type radio frequency (RF) coaxial connector includes being arranged on the socket described in each pair in socket aperture and the plug for connecting socket described in each pair, the push-in type radio frequency (RF) coaxial connector partition method sets metal spacing block between being included in the joint face of first module and second module, the plug hole identical with the plug outside diameter is provided with the metal spacing block relative to the position of each plug, the metal spacing block is used to fill the gap between the joint face of first module and second module.Metal spacing block has radiofrequency signal good shielding by contacting ground connection with shell in the present invention, effectively reduces the leakage of radiofrequency signal.

Description

Push-in type radio frequency (RF) coaxial connector partition method and push-in type radio frequency (RF) coaxial connector
Technical field
The present invention relates to radio frequency (RF) coaxial connector technical field, more particularly to push-in type radio frequency (RF) coaxial connector partition method And push-in type radio frequency (RF) coaxial connector.
Background technology
Push-in type radio frequency (RF) coaxial connector has the characteristics that small, light-weight, shock resistance is superior, working frequency range is wide, Have a wide range of applications, have broad application prospects and market in microwave circuits.Since push-in type RF coaxial connects Device is realized by directly push-in and is electrically connected, and is existed between connector compared with big gap, therefore its isolation is much worse than screw fastening immediately Head, easily causes signals leakiness when being applied in minimizing microwave components, influences spectral purity.
Fig. 1 is the schematic diagram of push-in type radio frequency (RF) coaxial connector interconnection, the multi-channel rf letter between module one and module two Number need to be interconnected by connector, since the interconnection of plug and socket uses push-in type, inevitably in plug and There is certain interval between socket, although gap is smaller, due to the diffraction effect of radiofrequency signal, remain able to by these gaps Leak out, the more high this leakage of radio frequency signal frequency is more serious.
Therefore, how to reduce the leakage of radiofrequency signal becomes those skilled in the art's urgent problem.
The content of the invention
For deficiencies of the prior art, the technical problem to be solved in the present invention is:How radiofrequency signal is reduced Leakage.
In order to solve the above technical problems, present invention employs following technical solution:
A kind of push-in type radio frequency (RF) coaxial connector partition method, the push-in type radio frequency (RF) coaxial connector are used to connect the first module And second module, at least a pair of of socket aperture is relatively set with the joint face of first module and second module, it is described Push-in type radio frequency (RF) coaxial connector includes being arranged on socket described in each pair in socket aperture and for connecting socket described in each pair Plug, the push-in type radio frequency (RF) coaxial connector partition method is included in the connection of first module and second module Metal spacing block is set between face, is provided with and the plug relative to the position of each plug on the metal spacing block The identical plug hole of outside diameter, the metal spacing block are used to filling between the joint face of first module and second module Gap.
Preferably, the edge of the socket aperture is provided with stepped groove, relative to the stepped groove on the metal spacing block Position be provided with the hierarchic structure of protrusion, the hierarchic structure is embedded in the stepped groove.
Preferably, the metal spacing block is aluminium alloy or copper alloy, which is easily worked, and precision is easy to control, leads Electrical property is good, can realize high radio frequency signal shield performance.
Preferably, the thickness of the metal spacing block is the distance between two ground plane of the first module and the second module, should Distance need >=0.5mm, manufacture and installation easy to produce.
A kind of push-in type radio frequency (RF) coaxial connector, the push-in type radio frequency (RF) coaxial connector are used to connect the first module and the At least a pair of of socket aperture, the push-in are relatively set with the joint face of two modules, first module and second module Formula radio frequency (RF) coaxial connector include being arranged on socket described in each pair in socket aperture, for connect the plug of socket described in each pair with And the metal spacing block between the joint face of first module and second module is arranged on, phase on the metal spacing block The position of each plug is provided with the plug hole identical with the plug outside diameter, the metal spacing block is used to fill Gap between the joint face of first module and second module.
Preferably, the edge of the socket aperture is provided with stepped groove, relative to the stepped groove on the metal spacing block Position be provided with the hierarchic structure of protrusion, the hierarchic structure is embedded in the stepped groove.
Preferably, the metal spacing block is aluminium alloy or copper alloy.
Preferably, the thickness of the metal spacing block is the distance between two ground plane of the first module and the second module, should Distance >=0.5mm.
In conclusion the invention discloses a kind of push-in type radio frequency (RF) coaxial connector partition method, the push-in type radio frequency Coaxial connector is used to connecting the first module and the second module, opposite on the joint face of first module and second module At least a pair of of socket aperture is provided with, the push-in type radio frequency (RF) coaxial connector includes being arranged on the socket described in each pair in socket aperture And for connecting the plug of socket described in each pair, the push-in type radio frequency (RF) coaxial connector partition method is included in described first Metal spacing block is set between the joint face of module and second module, described is inserted relative to each on the metal spacing block The position of head is provided with the plug hole identical with the plug outside diameter, the metal spacing block be used to filling first module and Gap between the joint face of second module.Metal spacing block is by contacting ground connection with shell in the present invention, to radio frequency Signal has good shielding, effectively reduces the leakage of radiofrequency signal.
Brief description of the drawings
In order to make the purpose, technical scheme and advantage of invention clearer, the present invention is made into one below in conjunction with attached drawing The detailed description of step, wherein:
Fig. 1 is the structure diagram for using push-in type radio frequency (RF) coaxial connector link block one and module two in the prior art;
Fig. 2 is the structure diagram of push-in type radio frequency (RF) coaxial connector disclosed by the invention;
Fig. 3 is the partial enlarged view of push-in type radio frequency (RF) coaxial connector disclosed by the invention;
Fig. 4 is that the emulation of push-in type radio frequency (RF) coaxial connector disclosed by the invention and existing push-in type radio frequency (RF) coaxial connector is imitated Fruit comparison diagram;
Fig. 5 is the connection diagram of push-in type radio frequency (RF) coaxial connector disclosed by the invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Fig. 2, the invention discloses a kind of 6 partition method of push-in type radio frequency (RF) coaxial connector, push-in type radio frequency are same Mandrel connector 6 is used to connecting the first module 1 and the second module 2, is oppositely arranged on the joint face of the first module 1 and the second module 2 There is at least a pair of of socket aperture 3, push-in type radio frequency (RF) coaxial connector 6 includes the socket being arranged in each pair socket aperture 3 and is used for The plug 4 of each pair socket is connected, 6 partition method of push-in type radio frequency (RF) coaxial connector is included in the first module 1 and the second module 2 Metal spacing block 5 is set between joint face, is provided with and 4 outside diameter of plug relative to the position of each plug 4 on metal spacing block 5 Identical 4 hole of plug, metal spacing block 5 are used to fill the gap between the first module 1 and the joint face of the second module 2.
Metal spacing block 5 has radiofrequency signal good shielding, effectively by contacting ground connection with shell in the present invention Reduce the leakage of radiofrequency signal.Module one and module two in the present invention are used to refer to connect for push-in type radio frequency (RF) coaxial connector 6 Two elements connect, and it is not specific to a certain component.
As shown in figure 4, using method disclosed by the invention, isolation optimizes more than 20dB, and isolation effect is notable, effectively The leakage for reducing radiofrequency signal.In Fig. 4, abscissa is frequency, and ordinate is isolation, curve A be the prior art every From degree simulation curve, curve B is the isolation simulation curve of structure in the present invention.
When it is implemented, the edge of socket aperture 3 is provided with stepped groove, relative to the position of stepped groove on metal spacing block 5 The hierarchic structure 51 of protrusion is provided with, hierarchic structure 51 is embedded in stepped groove.
Using hierarchic structure 51 so that RF signal path increase, discontinuity increase, can effectively to leakage signal into Row suppresses, and further reduces the leakage of radiofrequency signal.
When it is implemented, metal spacing block 5 is aluminium alloy or copper alloy, which is easily worked, and precision is easy to control, leads Electrical property is good, can realize high radio frequency signal shield performance.
When it is implemented, the thickness of metal spacing block 5 is the distance between 2 liang of ground planes of the first module 1 and the second module, Distance need >=0.5mm, manufacture and installation easy to produce.
As shown in Fig. 2, the invention also discloses a kind of push-in type radio frequency (RF) coaxial connector 6, the connection of push-in type RF coaxial Device 6 is used to connecting the first module 1 and the second module 2, is relatively set with least on the joint face of the first module 1 and the second module 2 A pair of of socket aperture 3, socket that push-in type radio frequency (RF) coaxial connector 6 includes being arranged in each pair socket aperture 3, insert for connecting each pair The plug 4 of seat and the metal spacing block 5 being arranged between the joint face of the first module 1 and the second module 2, metal spacing block 5 On be provided with plug 4 hole identical with 4 outside diameter of plug relative to the position of each plug 4, metal spacing block 5 is used to fill first Gap between the joint face of 1 and second module 2 of module.
When it is implemented, the edge of socket aperture 3 is provided with stepped groove, relative to the position of stepped groove on metal spacing block 5 The hierarchic structure 51 of protrusion is provided with, hierarchic structure 51 is embedded in stepped groove.
As shown in figure 5, the first module 1 and the second module 2 are closed up to push-in type radio frequency (RF) coaxial connector 6, you can complete The connection of first module 1 and the second module 2.
Preferably, the metal spacing block 5 is aluminium alloy or copper alloy.
Preferably, the thickness of the metal spacing block 5 is the distance between 2 liang of ground planes of the first module 1 and the second module, Distance >=the 0.5mm.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although passing through ginseng According to the preferred embodiment of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can Various changes are made to it in the form and details, the present invention that is limited without departing from the appended claims Spirit and scope.

Claims (8)

1. a kind of push-in type radio frequency (RF) coaxial connector partition method, it is characterised in that the push-in type radio frequency (RF) coaxial connector is used In the first module of connection and the second module, at least one is relatively set with the joint face of first module and second module To socket aperture, the push-in type radio frequency (RF) coaxial connector includes being arranged on socket described in each pair in socket aperture and for connecting The plug of socket described in each pair, the push-in type radio frequency (RF) coaxial connector partition method are included in first module and described Metal spacing block is set between the joint face of two modules, is set on the metal spacing block relative to the position of each plug There is the plug hole identical with the plug outside diameter, the metal spacing block is used to fill first module and second module Joint face between gap.
2. push-in type radio frequency (RF) coaxial connector partition method as claimed in claim 1, it is characterised in that the side of the socket aperture Edge is provided with stepped groove, is provided with the hierarchic structure of protrusion, institute on the metal spacing block relative to the position of the stepped groove Hierarchic structure is stated to be embedded in the stepped groove.
3. push-in type radio frequency (RF) coaxial connector partition method as claimed in claim 1 or 2, it is characterised in that the metal every It is aluminium alloy or copper alloy from piece.
4. push-in type radio frequency (RF) coaxial connector partition method as claimed in claim 1 or 2, it is characterised in that the metal every From piece thickness the distance between for two ground plane of the first module and the second module, the distance >=0.5mm.
5. a kind of push-in type radio frequency (RF) coaxial connector, it is characterised in that the push-in type radio frequency (RF) coaxial connector is used to connect the At least a pair of of socket is relatively set with the joint face of one module and the second module, first module and second module Hole, the push-in type radio frequency (RF) coaxial connector include being arranged on socket described in each pair in socket aperture, for connecting described in each pair The plug of socket and the metal spacing block being arranged between the joint face of first module and second module, the gold Belong to and be provided with the plug hole identical with the plug outside diameter relative to the position of each plug on spacer, the metal every It is used to fill the gap between the joint face of first module and second module from piece.
6. push-in type radio frequency (RF) coaxial connector as claimed in claim 5, it is characterised in that the edge of the socket aperture is provided with Stepped groove, the hierarchic structure of protrusion, the ladder knot are provided with the metal spacing block relative to the position of the stepped groove Structure is embedded in the stepped groove.
7. the push-in type radio frequency (RF) coaxial connector as described in claim 5 or 6, it is characterised in that the metal spacing block is aluminium Alloy or copper alloy.
8. the push-in type radio frequency (RF) coaxial connector as described in claim 5 or 6, it is characterised in that the thickness of the metal spacing block Spend for the distance between two ground plane of the first module and the second module, the distance >=0.5mm.
CN201711214513.2A 2017-11-28 2017-11-28 Isolation method of push-in type radio frequency coaxial connector and push-in type radio frequency coaxial connector Active CN107910730B (en)

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CN201711214513.2A CN107910730B (en) 2017-11-28 2017-11-28 Isolation method of push-in type radio frequency coaxial connector and push-in type radio frequency coaxial connector

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Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020187680A1 (en) * 2001-06-11 2002-12-12 Fred Lee Connector assembly
EP1291981A2 (en) * 2001-09-11 2003-03-12 Autonetworks Technologies, Ltd. Shielding connector
CN2658969Y (en) * 2003-09-11 2004-11-24 庞斌 Rectangular electric connector having isolating structure
CN101217223A (en) * 2007-01-04 2008-07-09 南京依纳科技有限公司 Small RF coaxial connector
US20090142960A1 (en) * 2007-12-03 2009-06-04 Shigehito Yazawa Coaxial connector connecting structure and high- frequency device equipped with the same
US20090203256A1 (en) * 2004-11-24 2009-08-13 John Mezzalingua Associates Inc. Connector having conductive member and method of use thereof
CN201369459Y (en) * 2008-10-31 2009-12-23 芯通科技(成都)有限公司 High-frequency interconnecting device
CN102544918A (en) * 2010-12-20 2012-07-04 西安金波科技有限责任公司 Leakproof symmetrical multi-processing (SMP) radio frequency coaxial adapter
CN103280644A (en) * 2013-04-22 2013-09-04 华为机器有限公司 Radio-frequency connector
CN203277782U (en) * 2013-05-22 2013-11-06 陕西华达科技股份有限公司 Novel integrated radio frequency coaxial electric connector
CN103401099A (en) * 2013-08-06 2013-11-20 临沂市海纳电子有限公司 Connector with shielding contact spring
CN203660127U (en) * 2013-12-31 2014-06-18 罗森伯格(上海)通信技术有限公司 Coplanar connector
CN104244288A (en) * 2014-08-26 2014-12-24 李青花 WLAN relay optimizing system and method
CN105356149A (en) * 2015-12-04 2016-02-24 中国电子科技集团公司第四十研究所 Pushing self-locking radio frequency connector
CN205509147U (en) * 2016-02-22 2016-08-24 绵阳昱丰电子科技有限公司 Take shielding layer connector component
CN206558803U (en) * 2017-02-24 2017-10-13 中山市锦晖电线电缆有限公司 A kind of full-shield HDMI pin ends
CN207426345U (en) * 2017-11-28 2018-05-29 中电科技集团重庆声光电有限公司 Push-in type radio frequency (RF) coaxial connector

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020187680A1 (en) * 2001-06-11 2002-12-12 Fred Lee Connector assembly
EP1291981A2 (en) * 2001-09-11 2003-03-12 Autonetworks Technologies, Ltd. Shielding connector
CN2658969Y (en) * 2003-09-11 2004-11-24 庞斌 Rectangular electric connector having isolating structure
US20090203256A1 (en) * 2004-11-24 2009-08-13 John Mezzalingua Associates Inc. Connector having conductive member and method of use thereof
CN101217223A (en) * 2007-01-04 2008-07-09 南京依纳科技有限公司 Small RF coaxial connector
US20090142960A1 (en) * 2007-12-03 2009-06-04 Shigehito Yazawa Coaxial connector connecting structure and high- frequency device equipped with the same
CN201369459Y (en) * 2008-10-31 2009-12-23 芯通科技(成都)有限公司 High-frequency interconnecting device
CN102544918A (en) * 2010-12-20 2012-07-04 西安金波科技有限责任公司 Leakproof symmetrical multi-processing (SMP) radio frequency coaxial adapter
CN103280644A (en) * 2013-04-22 2013-09-04 华为机器有限公司 Radio-frequency connector
CN203277782U (en) * 2013-05-22 2013-11-06 陕西华达科技股份有限公司 Novel integrated radio frequency coaxial electric connector
CN103401099A (en) * 2013-08-06 2013-11-20 临沂市海纳电子有限公司 Connector with shielding contact spring
CN203660127U (en) * 2013-12-31 2014-06-18 罗森伯格(上海)通信技术有限公司 Coplanar connector
CN104244288A (en) * 2014-08-26 2014-12-24 李青花 WLAN relay optimizing system and method
CN105356149A (en) * 2015-12-04 2016-02-24 中国电子科技集团公司第四十研究所 Pushing self-locking radio frequency connector
CN205509147U (en) * 2016-02-22 2016-08-24 绵阳昱丰电子科技有限公司 Take shielding layer connector component
CN206558803U (en) * 2017-02-24 2017-10-13 中山市锦晖电线电缆有限公司 A kind of full-shield HDMI pin ends
CN207426345U (en) * 2017-11-28 2018-05-29 中电科技集团重庆声光电有限公司 Push-in type radio frequency (RF) coaxial connector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
曹凌云;代君利;: "FCI:独创AirMax技术引领背板连接器行业标准", 中国电子商情(基础电子), no. 10, 8 October 2009 (2009-10-08) *

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