CN111146615A - Different diameter long coaxial cable end connection structure - Google Patents

Different diameter long coaxial cable end connection structure Download PDF

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Publication number
CN111146615A
CN111146615A CN201911301206.7A CN201911301206A CN111146615A CN 111146615 A CN111146615 A CN 111146615A CN 201911301206 A CN201911301206 A CN 201911301206A CN 111146615 A CN111146615 A CN 111146615A
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CN
China
Prior art keywords
outer conductor
conductor
thread groove
coaxial cable
diameter
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911301206.7A
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Chinese (zh)
Inventor
肖顺群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Aerospace Science and Industry Appliance Co Ltd
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Shanghai Aerospace Science and Industry Appliance Co Ltd
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Filing date
Publication date
Application filed by Shanghai Aerospace Science and Industry Appliance Co Ltd filed Critical Shanghai Aerospace Science and Industry Appliance Co Ltd
Priority to CN201911301206.7A priority Critical patent/CN111146615A/en
Publication of CN111146615A publication Critical patent/CN111146615A/en
Pending legal-status Critical Current

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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
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • 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
    • H01R13/58Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/56Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation one conductor screwing into another

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  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

A differential elongate coaxial cable termination structure comprising said cable body including a first outer conductor and a first inner conductor; a first inner conductor is coaxially arranged inside the first outer conductor; the first outer conductor is electrically insulated from the first inner conductor; the second inner conductor is in electrical contact with the first inner conductor, and the first outer conductor is in electrical contact with the second outer conductor; the first outer conductor is provided with an outer thread groove, the inner wall of the second outer conductor is provided with an inner thread groove, and the outer thread groove is matched with the inner thread groove; the external thread groove; according to the invention, the interference connection between the first outer conductor and the second outer conductor can be realized by utilizing the mode of different diameters, so that the connection strength between the connector and the cable is effectively improved, and the outer conductor of the connector and the inner conductor of the cable are prevented from loosening and generating gaps.

Description

Different diameter long coaxial cable end connection structure
Technical Field
The invention belongs to the technical field of communication connectors, and particularly relates to a different-diameter long coaxial cable termination structure.
Background
The coaxial cable is a cable which is provided with two concentric conductors, and the conductor and the shielding layer share the same axis; most common coaxial cables consist of copper conductors separated by an insulating material, outside the inner insulating material there is another layer of annular conductor and its insulator, then the whole cable is covered by a sheath of polyvinyl chloride or teflon material;
present coaxial cable is when with coaxial connector, consuming time is very long, need aim at and insert, the operation precision is limited, and simple plug connection structure can lead to the joint strength of cable and connector not high, and the grafting department easily takes off, receives external environment interference easily, and when joint strength is not high, the clearance increase and decrease between the first outer conductor of cable and the second outer conductor of connector, shielding effect reduces, and the signal difference between first outer conductor and the second outer conductor will increase, leads to three intermodulation at last to increase.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a different-diameter long coaxial cable termination structure, and the specific technical scheme is as follows:
the different diameter type coaxial cable termination structure comprises a cable main body and a connector main body; the cable main body is assembled and connected with the connector main body; the cable body includes a first outer conductor and a first inner conductor; a first inner conductor is coaxially arranged inside the first outer conductor; the first outer conductor is electrically insulated from the first inner conductor;
the connector main body comprises an outer shell, a second outer conductor and a second inner conductor, wherein the second outer conductor is coaxially arranged inside the outer shell; a second inner conductor is coaxially arranged inside the second outer conductor, and the second outer conductor is electrically insulated from the second inner conductor;
the second inner conductor is in electrical contact with the first inner conductor, and the first outer conductor is in electrical contact with the second outer conductor;
the first outer conductor is provided with an outer thread groove, the inner wall of the second outer conductor is provided with an inner thread groove, and the outer thread groove is matched with the inner thread groove; an interference fit between the first outer conductor and the second outer conductor; the interference fit is used to improve joint strength and suppress third order intermodulation.
Furthermore, an expansion gap is reserved between the outer end of the fixing pipe and the second outer conductor, the inner end of the fixing pipe is fixedly connected with the second outer conductor, the second outer conductor is of an elastic structure, and the second outer conductor and the first outer conductor are in interference fit.
Further, the length of the inner diameter of the inner thread groove is D1The length of the inner diameter of the front end part of the external thread groove is D2Said D is1<D2
Further, the internal thread groove comprises a first connecting section and a second connecting section, the second connecting section is positioned on the outer side of the first connecting section, and the length of the inner diameter of the second connecting section is D12The length of the inner diameter of the first connecting section is D11Said D is11≠D12
Further, the second outer conductor comprises a deformation part and a fixing part, the deformation part is two semicircular copper sheets symmetrically arranged, each semicircular copper sheet is of an elastic structure, each fixing part is of a circular tube structure, the fixing part is fixedly connected with the corresponding fixing tube, and the deformation part and the expansion gap are arranged oppositely.
The invention has the beneficial effects that:
by means of different radial lengths, interference connection between the first outer conductor and the second outer conductor can be achieved, so that the connection strength between the connector and the cable is effectively improved, and the outer conductor of the connector and the inner conductor of the cable are prevented from loosening and generating gaps; on the premise of ensuring the connection strength by the scheme, the signal difference between the conductors can be effectively reduced, and the purpose of effectively inhibiting third-order intermodulation is finally achieved.
Drawings
Fig. 1 is a schematic diagram illustrating a differential diameter length type coaxial cable termination structure according to the present invention;
FIG. 2 shows a schematic view of the second outer conductor structure of FIG. 1;
fig. 3 shows a schematic view of the connection structure of the cable body and the second outer conductor of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The different diameter type coaxial cable termination structure comprises a cable main body 1 and a connector main body 2; the cable body 1 is assembled and connected with the connector body 2; the cable body 1 includes a first outer conductor 12 and a first inner conductor 13; a first inner conductor 13 is coaxially arranged inside the first outer conductor 12; the first outer conductor 12 is electrically insulated from the first inner conductor 13;
the connector body 2 comprises an outer shell 21, a second outer conductor 23 and a second inner conductor 24, wherein the second outer conductor 23 is coaxially arranged inside the outer shell 21; a second inner conductor 24 is coaxially arranged inside the second outer conductor 23, and the second outer conductor 23 is electrically insulated from the second inner conductor 24; the electric insulation is used for ensuring that the outer conductor can form a shielding structure;
the second inner conductor 24 is in electrical contact with the first inner conductor 13 and the first outer conductor 12 is in electrical contact with the second outer conductor 23; the coaxial connector can be connected by the electric contact of the inner conductor and the outer conductor;
the first outer conductor 12 is provided with an outer thread groove 121, the inner wall of the second outer conductor 23 is provided with an inner thread groove 231, and the outer thread groove 121 is matched with the inner thread groove 231; the male screw groove 121 and the female screw groove 231 are used to quickly assemble the cable body 1 with the connector body 2;
an interference fit between the first outer conductor 12 and the second outer conductor 23; the interference fit is used for improving the connection strength and inhibiting third-order intermodulation; the interference assembly can improve the connection strength, reduce the signal difference and further inhibit the three-order intermodulation.
As an improvement of the above technical solution, the diameter length of the female thread groove 231 is D1The radial length of the male thread groove 121 is D2Said D is1<D2(ii) a By making the diameter of the front end part (1 or several threads) of the external thread groove 121 smaller than that of the internal thread groove 231, the threads of the external thread groove 121 interfere with the internal thread groove 231 when screwed, thereby realizing the cable connection to the second outer conductor 24And (4) locking and fixing.
As an improvement of the above technical solution, the radial length is any one of an inner diameter, a middle diameter and an outer diameter; the different diameter length can be designed into any one of the inner diameter, the intermediate diameter and the outer diameter according to the field processing requirement, and the interference effect can be achieved.
As an improvement of the above technical solution, the internal thread groove 231 includes a plurality of connecting sections, and the diameters of the connecting sections are different from each other; through carrying out further subregion division to the linkage segment, conflict effect is interfered in improvement that can be further, reinforcing joint strength.
As an improvement of the above technical solution, the connector main body 2 further includes an outer housing 21 and a fixed tube 22, the second inner conductor 24 is installed at the tail end inside the outer housing 21, the fixed tube 22 is installed at the front end inside the outer housing 21, the second outer conductor 23 is installed inside the fixed tube 22, an expansion gap 221 is left between the outer end of the fixed tube 22 and the second outer conductor 23, the inner end of the fixed tube 22 and the second outer conductor 23 are fixedly connected, and the second outer conductor 23 is of an elastic structure; the fixing tube 22 is used for fixing the second outer conductor 23 in the outer shell 21, the expansion gap 221 is used for facilitating the outward expansion of the second outer conductor 23 when the second outer conductor 23 deforms, and the deformation of the second outer conductor 23 is used for ensuring that the first outer conductor 12 can be screwed in quickly and conveniently; the elastic structure is used for ensuring that the second outer conductor 23 can be spread outwards so as to clamp the first outer conductor 12 inwards; the mounting tube 22 is used to ensure shield integrity.
As an improvement of the above technical solution, the second outer conductor 23 includes a deformation portion and a fixed portion, the deformation portion is disposed at an outer end of the fixed portion, the deformation portion includes arc pieces arranged in mirror symmetry, the arc pieces are of an elastic structure, the fixed portion is of a circular tube structure, the fixed portion is fixedly connected with the fixed tube, and the deformation portion is arranged opposite to the expansion gap; the two elastic arc sheets are utilized, so that the screw can be screwed in and screwed down conveniently; the connection of the stationary part to the stationary tube 22 serves to ensure the integrity of the shielding effect.
As shown in fig. 1-3: the connector body 2 includes an outer housing 21, a fixing tube 22, a second outer conductor 23, a second inner conductor 24; a fixed pipe 22 is embedded in the outer end part of the inner part of the outer shell 21, a second outer conductor 23 is installed in the fixed pipe 22, the inner part of the fixed pipe 22 is fixedly connected with the second outer conductor 23, and the outer part of the inner part of the fixed pipe 22 and the second outer conductor 23 are arranged at intervals to form an expansion gap 221;
the second outer conductor 23 is spiral, an inner thread groove 231 is formed in the inner wall of the second outer conductor 23, and a second inner conductor 24 is arranged at the inner center line of the outer shell 21;
the part of the second outer conductor 23 opposite to the expansion gap 221 is of two semicircular structures, the two semicircular structures can be elastically expanded outwards to enter the expansion gap 221 and reversely clamp the first outer conductor 12, the rest part of the second outer conductor 23 is of a complete circular tube structure, and the complete circular tube structure is fixedly connected with the fixed tube 22;
the cable main body 1 comprises an outer sleeve 11, a first outer conductor 12 and a first inner conductor 13, wherein the outer sleeve 11, the first outer conductor 12 and the first inner conductor 13 are coaxially arranged from outside to inside in sequence, the first outer conductor 12 is in a threaded shape, and an outer threaded groove 121 is formed in the outer wall of the first outer conductor 12; the first outer conductor 12 is screwed into the inside of the second outer conductor 23, and the internal thread groove 231 is engaged with the external thread groove 121; the radial length in the internal thread groove 213 is smaller than the radial length of the external thread groove 121;
the radial length can be any one of an outer diameter, a middle diameter and an inner diameter;
the inner thread groove 231 may be provided with a plurality of connection sections therein according to actual processing conditions, and the lengths of the connection sections may be the same or different from each other; the change of each part can be gradual change or abrupt change and irregularity; as long as interference conflict can be formed;
example 1: the radial length is the inner diameter; the female screw groove 231 is divided into two parts, i.e., a first connection section and a second connection section, the second connection section being located outside the first connection section, the first connection section having an inner diameter D11The second connecting section has an inner diameter D12Inner diameter D of the external thread groove 1212;D11<D12<D2(ii) a Forming a continuous gradual change structure;
during screwing, the first outer conductor 12 is screwed into the second outer conductor 23, during which process due to D12<D2When the cable enters the second connection section, the first outer conductor 12 pushes against the second outer conductor 23 outwards, so that the second outer conductor 23 expands outwards into the expansion gap 221; the second outer conductor 23 with the elastic structure can reversely clamp the first outer conductor 1, so that the second outer conductor 23 is more fully connected with the first outer conductor 1 and has higher strength; subsequently, the cable is screwed on, since D11<D12When the cable enters the first connection section area, the second outer conductor 23 continuously pushes outwards to form the first outer conductor 12, so that the first outer conductor 12 continuously expands outwards, the reverse clamping force is larger, and the connection strength is further improved; when the first inner conductor 13 is completely inserted into the second inner conductor 23, the cable stops rotating, and the cable and the connector can be connected quickly and strongly; the signal is transmitted to the second inner conductor 24 through the first inner conductor 13, the current of the first outer conductor 12 is transmitted to the second outer conductor 22, and then transmitted to the inner wall of the outer shell 21 through the fixed tube 22, and the outer shell 21 forms an electric shielding structure outside the second inner conductor 24.
Example 2: the radial length is the inner diameter; the female screw groove 231 is divided into two parts, i.e., a first connection section and a second connection section, the second connection section being located outside the first connection section, the first connection section having an inner diameter D11The second connecting section has an inner diameter D12Inner diameter D of the external thread groove 1212;D12<D11<D2(ii) a Forming an abrupt transition structure.
Example 3: the radial length is the inner diameter; the female thread groove 231 is not divided, and the inner diameters of the female thread grooves 213 are all D1,D1<D2
Example 4: the radial length is the outer diameter; the female thread groove 231 is not divided, and the outer diameters of the female thread grooves 213 are all D1,D1<D2
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. Long-type coaxial cable termination structure of difference footpath its characterized in that: comprises a cable main body and a connector main body; the cable main body is assembled and connected with the connector main body; the cable body includes a first outer conductor and a first inner conductor; a first inner conductor is coaxially arranged inside the first outer conductor; the first outer conductor is electrically insulated from the first inner conductor;
the connector main body comprises an outer shell, a second outer conductor and a second inner conductor, wherein the second outer conductor is coaxially arranged inside the outer shell; a second inner conductor is coaxially arranged inside the second outer conductor, and the second outer conductor is electrically insulated from the second inner conductor;
the second inner conductor is in electrical contact with the first inner conductor, and the first outer conductor is in electrical contact with the second outer conductor;
the first outer conductor is provided with an outer thread groove, the inner wall of the second outer conductor is provided with an inner thread groove, and the outer thread groove is matched with the inner thread groove; an interference fit between the first outer conductor and the second outer conductor; the interference fit is used to improve joint strength and suppress third order intermodulation.
2. A termination structure for a spiral copper tube coaxial cable according to claim 1, wherein: the diameter length of the inner thread groove is D1The diameter length of the external thread groove is D2Said D is1<D2
3. A termination structure for a spiral copper tube coaxial cable according to claim 2, wherein: the radial length is any one of an inner diameter, a middle diameter and an outer diameter.
4. A termination structure for a spiral copper tube coaxial cable according to claim 3, wherein: the internal thread groove includes the linkage segment, the linkage segment is equipped with a plurality ofly, each the footpath length between the linkage segment is different each other.
5. A termination structure for a spiral copper tube coaxial cable according to claim 2, wherein: the connector main part still includes shell body, fixed pipe, install the inside tail end of shell body the second inner conductor, install the inside front end of shell body fixed pipe, the inside of fixed pipe is equipped with the second outer conductor, the outer tip of fixed pipe with leave the expansion clearance between the second outer conductor, the inner of fixed pipe with fixed connection between the second outer conductor, the second outer conductor is elastic construction.
6. A termination structure for a spiral copper tube coaxial cable according to claim 5, wherein: the second outer conductor includes deformation part and fixed part, the deformation part is located the outer end of fixed part, the deformation part includes the circular arc piece that mirror symmetry set up, the circular arc piece is elastic construction, the fixed part is the pipe structure, the fixed part with fixed pipe fixed connection, the deformation part with the expansion clearance sets up relatively.
CN201911301206.7A 2019-12-17 2019-12-17 Different diameter long coaxial cable end connection structure Pending CN111146615A (en)

Priority Applications (1)

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CN201911301206.7A CN111146615A (en) 2019-12-17 2019-12-17 Different diameter long coaxial cable end connection structure

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Application Number Priority Date Filing Date Title
CN201911301206.7A CN111146615A (en) 2019-12-17 2019-12-17 Different diameter long coaxial cable end connection structure

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CN111146615A true CN111146615A (en) 2020-05-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113363891A (en) * 2021-06-07 2021-09-07 深圳市深电电力设备发展有限公司 Manufacturing method of cable first-aid repair quick connector

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1102733A (en) * 1993-05-14 1995-05-17 惠特克公司 Coaxial connector for coaxial cable having a corrugated outer conductor
EP1049198A2 (en) * 1999-04-27 2000-11-02 Yazaki Corporation A connector for a shielded wire
US6439924B1 (en) * 2001-10-11 2002-08-27 Corning Gilbert Inc. Solder-on connector for coaxial cable
CN1146088C (en) * 1997-04-07 2004-04-14 安德鲁公司 Connector for coaxial cable
CN1649209A (en) * 2004-01-29 2005-08-03 斯宾纳电子技术工厂有限公司 Connector for coaxial cable with ring wave external conductor
CN1956278A (en) * 2005-10-20 2007-05-02 托马斯及贝茨国际股份有限公司 Preparation free coaxial cable connector
CN100399630C (en) * 2003-02-13 2008-07-02 安德鲁公司 Low cost, high performance cable-connector system and assembly method
CN101317305A (en) * 2005-12-01 2008-12-03 罗森伯格高频技术有限及两合公司 Push-pull-coaxial plug connector
CN101483282A (en) * 2008-12-31 2009-07-15 罗森伯格亚太电子有限公司 Coaxial electric cable connector for sylphon bellowss
CN101800367A (en) * 2010-02-02 2010-08-11 罗森伯格亚太电子有限公司 Coaxial cable connector
CN201601344U (en) * 2010-02-02 2010-10-06 罗森伯格亚太电子有限公司 Coaxial cable connector
CN206478102U (en) * 2016-12-28 2017-09-08 上海振高螺母有限公司 A kind of metal path locking nut
CN206697705U (en) * 2017-04-07 2017-12-01 江苏广宇网络器材有限公司 A kind of radio frequency (RF) coaxial connector
CN108232487A (en) * 2016-12-15 2018-06-29 康普技术有限责任公司 Coaxial cable connector

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1102733A (en) * 1993-05-14 1995-05-17 惠特克公司 Coaxial connector for coaxial cable having a corrugated outer conductor
CN1146088C (en) * 1997-04-07 2004-04-14 安德鲁公司 Connector for coaxial cable
EP1049198A2 (en) * 1999-04-27 2000-11-02 Yazaki Corporation A connector for a shielded wire
US6439924B1 (en) * 2001-10-11 2002-08-27 Corning Gilbert Inc. Solder-on connector for coaxial cable
CN100399630C (en) * 2003-02-13 2008-07-02 安德鲁公司 Low cost, high performance cable-connector system and assembly method
CN1649209A (en) * 2004-01-29 2005-08-03 斯宾纳电子技术工厂有限公司 Connector for coaxial cable with ring wave external conductor
CN1956278A (en) * 2005-10-20 2007-05-02 托马斯及贝茨国际股份有限公司 Preparation free coaxial cable connector
CN101317305A (en) * 2005-12-01 2008-12-03 罗森伯格高频技术有限及两合公司 Push-pull-coaxial plug connector
CN101483282A (en) * 2008-12-31 2009-07-15 罗森伯格亚太电子有限公司 Coaxial electric cable connector for sylphon bellowss
CN101800367A (en) * 2010-02-02 2010-08-11 罗森伯格亚太电子有限公司 Coaxial cable connector
CN201601344U (en) * 2010-02-02 2010-10-06 罗森伯格亚太电子有限公司 Coaxial cable connector
CN108232487A (en) * 2016-12-15 2018-06-29 康普技术有限责任公司 Coaxial cable connector
CN206478102U (en) * 2016-12-28 2017-09-08 上海振高螺母有限公司 A kind of metal path locking nut
CN206697705U (en) * 2017-04-07 2017-12-01 江苏广宇网络器材有限公司 A kind of radio frequency (RF) coaxial connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113363891A (en) * 2021-06-07 2021-09-07 深圳市深电电力设备发展有限公司 Manufacturing method of cable first-aid repair quick connector

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Application publication date: 20200512