CN116565642A - Structure of high-frequency high-speed integrated plug and socket with misplug prevention function - Google Patents

Structure of high-frequency high-speed integrated plug and socket with misplug prevention function Download PDF

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Publication number
CN116565642A
CN116565642A CN202310217590.2A CN202310217590A CN116565642A CN 116565642 A CN116565642 A CN 116565642A CN 202310217590 A CN202310217590 A CN 202310217590A CN 116565642 A CN116565642 A CN 116565642A
Authority
CN
China
Prior art keywords
socket
plug
contacts
pin
contact
Prior art date
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
CN202310217590.2A
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Chinese (zh)
Inventor
侯香妮
赵欣
彭战良
李国强
雷涛
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.)
Shaanxi Huada Electrical Technology Co ltd
Original Assignee
Shaanxi Huada Electrical Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shaanxi Huada Electrical Technology Co ltd filed Critical Shaanxi Huada Electrical Technology Co ltd
Priority to CN202310217590.2A priority Critical patent/CN116565642A/en
Publication of CN116565642A publication Critical patent/CN116565642A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/642—Means for preventing incorrect coupling by position or shape of contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match

Landscapes

  • Multi-Conductor Connections (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The invention discloses a structure of a high-frequency high-speed integrated plug and socket with an anti-misplug function, which comprises a free-end cable plug and a printed board welding socket, wherein the free-end cable plug and the printed board welding socket are axially plugged in place through a plugging interface during plugging, and then the free-end cable plug and the printed board welding socket are screwed in place through internal and external threads of locking screws at two ends, so that plugging and locking are completed; the structure of the high-frequency high-speed integrated plug and socket with the misplug prevention function realizes high-frequency and high-speed integrated transmission, and greatly saves the installation space of the whole machine; the differential contact for transmitting the high-speed signals adopts a stranded wire contact pin structure with multiple points, so that the differential contact is soft in insertion and extraction and reliable in connection; the plugging interface is a trapezoid interface with concave-convex keys and key grooves matched, so that a good misplug preventing function is realized. The high-frequency high-speed integrated plug and socket structure with the misplug prevention function has the characteristics of novel structure, miniaturization, integration, high reliability, misplug prevention and the like.

Description

Structure of high-frequency high-speed integrated plug and socket with misplug prevention function
Technical Field
The invention relates to the technical field of connectors, in particular to a structure of a high-frequency and high-speed integrated plug and socket with an anti-misplug function.
Background
Along with the progress of technology, the electric connector is increasingly developed to the direction of high speed and integration, and the requirements of an I/O interconnection system and a platform with the characteristics of high reliability, multiple functions, modularized combination and the like are met, and multiple signals (radio frequency, differential, power supply, low frequency and the like) are required to be integrated and modularized transmitted, so that the installation space and the operation time of the whole machine can be greatly shortened on the premise of meeting the multiple signals. However, existing hybrid integrated connectors suffer from bottlenecks: firstly, the integrated size still cannot meet the space requirement of the whole machine; the second is that most of the existing integrated connectors are used for integrating high-frequency signals and low-frequency signals, and cannot meet the requirements of high-reliability, high-speed section and high-frequency transmission of an I/O interconnection system and a platform after high-speed and high-frequency integration.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a structure of a high-frequency high-speed integrated plug and socket with an anti-misplug function, which has the characteristics of small appearance volume, low cost, capability of meeting the signal requirement of an I/O system and the like, and solves the problems that the existing mixed integrated connector has large appearance volume and the signal does not meet the use requirement.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a structure of high-frequency high-speed integrated plug and socket with misplug prevention function comprises a free-end cable plug and a printed board welding socket matched with the free-end cable plug;
the free termination cable plug comprises a plurality of stranded wire flexible contact pin contacts 1 and a plurality of radio frequency coaxial contact pin contacts 2, plug sealant 3-1 for fixing the stranded wire flexible contact pin contacts 1, a fixed radio frequency coaxial contact pin contact 2 containing locking mounting holes and a plug shell 4 for wrapping a plug mounting plate 5, the plug mounting plates 5 for locating the stranded wire flexible contact pin contacts 1 are symmetrically arranged on two sides inside the plug shell 4, plug clamping claws 8-1 arranged on the radio frequency coaxial contact pin contacts 2 and locking screws 9 for realizing locking effect are arranged, a radio frequency coaxial cable 12 is connected with the radio frequency coaxial contact pin contacts 2, and a star cable 13 is connected with the stranded wire flexible contact pin contacts 1.
The twisted wire flexible contact pin contacts 1 are symmetrically distributed on two sides of the plug shell 4, the positions of the twisted wire flexible contact pin contacts are positioned through all holes of the plug mounting plate 5, each row is formed by two rows, each row is multiple, four twisted wire flexible contact pin contacts 1 form a U-shaped arrangement, a diagonal line forms a pair of differential contact elements, the differential contact elements and the star cable 13 are fixed into a component through crimping, the twisted wire flexible contact pin contacts 1 with the star cable 13 are arranged in all the holes of the plug mounting plate 5, and after the twisted wire flexible contact pin contacts 1 are positioned on the plug mounting plate 5, the twisted wire flexible contact pin contacts are fixed with the plug shell 4 through filling plug sealant 3-1 at the tail part of the plug mounting plate 5;
the radio frequency coaxial pin contacts 2 are distributed in each hole site in the middle area of the plug shell 4, a plurality of radio frequency coaxial pin contacts 2 are arranged in a single row, each radio frequency coaxial pin contact 2 and the radio frequency coaxial cable 12 are assembled into a cable assembly through welding, and the radio frequency coaxial pin contacts 2 with the radio frequency coaxial cable 12 are fixed in square steps of each hole site of the plug shell 4 through plug claws 8-1;
the radio frequency coaxial pin contact 2 consists of an inner conductor pin 2-1, a pin end front insulator 2-2, a pin end rear insulator 2-3 and a pin end outer conductor 2-4, wherein the pin end front insulator 2-2 is wrapped in the pin end outer conductor 2-4, the inner conductor pin 2-1 passes through the pin end front insulator 2-2 through barb press fit to meet interface requirements, and when the inner conductor pin 2-1 is press fit in place, the pin end rear insulator 2-3 is arranged on the rear end surface of the inner conductor pin 2-1 and is clamped between the inner conductor pin 2-1 and the radio frequency coaxial cable 12;
the printed board welding socket comprises a plurality of bent rigid jack contacts 14, a plurality of bent coaxial jack contacts 15, socket sealant 3-2 for fixing the bent rigid jack contacts 14, a socket shell 16 comprising locking mounting holes, socket mounting holes, a socket mounting plate 17, socket clamping jaws 8-2, a bracket 18, a screw 19 and a nut 20, wherein the socket mounting holes are used for fixing the bent rigid jack contacts 14, the socket shell 16 is used for wrapping the socket mounting plate 17 and fixing the bent coaxial jack contacts 15, the socket mounting plate 17 is symmetrically arranged at two sides of the interior of the socket shell 16 and is used for positioning the bent rigid jack contacts 14, the bracket 18 is used for positioning and protecting the bent rigid jack contacts 14, the screw 19 and the nut 20 are arranged at two ends of the socket shell 16 and used for locking, and the socket clamping jaws 8-2 are arranged on the bent coaxial jack contacts 15;
the bent rigid jack contacts 14 are symmetrically distributed on two sides of the socket shell 16, are positioned through all holes of the socket mounting plate 17, are formed by two rows, are multiple in each row, have the same length, are different in different lengths, are respectively arranged in all holes of the socket mounting plate 17, are identical in number, number and interval with the twisted wire flexible contact pin contacts 1 of the free termination cable plug, are matched with the positions and the shapes of the twisted wire flexible contact pin contacts 1, are positioned in all holes of the socket mounting plate 17, and are fixed with the socket shell 16 by filling socket sealant 3-2 at the tail of the socket mounting plate 17;
the bent coaxial jack contacts 15 are arranged in a single row, the bent coaxial jack contacts 15 are distributed in all hole sites in the middle area of the socket shell 16, are matched with the positions and the shapes of the radio frequency coaxial pin contacts 2, and are fixed in square steps of all hole sites of the socket shell 16 through socket claws 8-2;
the bent coaxial jack contact 15 consists of an inner conductor jack 15-1, a front hole end insulator 15-2, an outer hole end conductor 15-3, a rear hole end insulator 15-4 and a gland 15-5, wherein the inner conductor jack 15-1 is fixed in the front hole end insulator 15-2 through interface positioning, the front hole end insulator 15-2 is wrapped in the outer hole end conductor 15-3, the rear hole end insulator 15-4 passes through the inner conductor jack 15-1 and is fixed with the outer hole end conductor 15-3 through barb press fit, and finally the gland 15-5 is fixed with the outer hole end conductor 15-3 through interference press fit;
the bracket 18 is pressed into the socket shell 16 in an interference manner after passing through the plurality of bent rigid jack contacts 14, and the bracket 18 is flush with the end surface of the socket shell 16;
the screws 19 for realizing locking penetrate through locking mounting holes at two ends of the socket shell 16, are fixed with the socket shell 16 through nuts 20, have the same positions and the same number as the locking screws 9 of the cable plug which is freely terminated, and are matched with the shape of the locking screws 9;
during insertion, the free-end cable plug and the printed board welding socket are axially inserted in place through trapezoid interfaces respectively provided with anti-misplug symmetrical concave-convex keys and concave-convex grooves, and then locking screws 9 at two ends of the free-end cable plug are alternately screwed into threaded holes of locking screws 19 of the printed board welding socket to complete insertion and locking.
The twisted wire flexible pin contact 1 and the bent rigid jack contact 14 are symmetrically arranged in a U shape at four corners of two sides of the interface.
The contact spacing between the individual radio frequency coaxial pin contacts 2 and between the individual bent coaxial jack contacts 15 is 3.5mm.
The stranded wire flexible contact pin contact 1 is flexibly inserted and pulled out from the bent rigid jack contact 14, so that reliable transmission of high-speed signals is realized.
The locking screw 9 and the plug housing 4 are designed to have a non-loosening fixing structure, namely, the locking screw 9 is arranged in locking mounting holes at two ends of the plug housing 4, penetrates through a spring washer 10 and is riveted with the plug housing 4 through a riveting sleeve 11.
The plug claw 8-1, the radio frequency coaxial pin contact 2, the socket claw 8-2 and the bent coaxial jack contact 15 are designed with anti-rotation bosses.
The radio frequency coaxial pin contact 2, the plug housing 4, the bent coaxial jack contact 15 and the socket housing 16 are designed with anti-rotation edge milling structures.
The plug housing 4 and the socket housing 16 are provided with potting anti-slip grooves, and the plug housing 4 is provided with plug operation anti-slip grooves.
The free termination cable plug is provided with a clamp 6 which clamps and fixes the radio frequency coaxial cable 12 and the star cable 13 at the tail part of the plug shell 4, and is provided with a fixing screw 7 which fixes the plug shell 4 and the clamp 6.
The socket housing 16 is provided with printed board mounting and fixing holes at both ends.
The number of electrical connector contacts can be expanded upon this configuration.
Compared with the prior art, the invention has the following advantages and effects:
1) The shell is designed to be provided with a trapezoid interface with concave-convex keys and concave-convex grooves, so that the high misplug prevention function is realized, and the accurate positioning of a plurality of contact elements during the insertion is ensured.
2) The differential contact pieces are symmetrically distributed on two sides of the interface, the mounting plates on two sides are universal, the cost is reduced, the assembly difficulty is reduced, and the requirements of economy and easy assembly are met.
3) The differential contact pairs are designed into a plurality of U-shaped arrangement, so that impedance matching is met, and the high-speed section transmission requirement of a high-speed signal of a user printed board is met.
4) The high-frequency signals are distributed in the middle of the interface, and the high-speed signals are symmetrically distributed on two sides of the interface, so that the high-frequency signal grounding device has the characteristics of small product appearance, good grounding effect, attractive appearance and the like.
5) On the premise of ensuring the performance, the distance between the radio frequency coaxial contacts is reduced to 3.5mm, the overall dimension of the connector is greatly reduced, the space of the whole machine is saved, and the miniaturization requirement is met.
6) The differential contact piece adopts a flexible contact piece with multipoint contact, the insertion and the extraction are soft, the contact is reliable, and the requirements of reliability and light insertion and extraction are met.
7) The plug locking screw and the shell are not loosened, and the plug can be easily plugged by the locking screw during plugging, so that the plug locking screw has practicability and novelty.
8) The clamping jaw is clamped by utilizing the four corner gaps of the square cavity of the shell to fix the radio frequency coaxial contact piece, so that the structure is novel and the product is reliable.
9) Under the limited condition of installation space, design splint clamp fixed cable, form sufficient protection section to cable welding position, guarantee the reliability when product uses again.
10 The integrated transmission of high-speed and high-speed signals is realized, the number of product contacts can be expanded on the basis of the structure, the series development of the type of electric connector is realized, the market demand is large, the market prospect is good, and the integrated transmission device has good application and popularization values.
Drawings
Fig. 1a is a front view of a free-termination cable plug according to the present invention, fig. 1b is a top view of the free-termination cable plug according to the present invention, fig. 1c is a perspective view of a plug housing 4, fig. 1d is a cross-sectional view of a radio frequency coaxial pin contact 2, fig. 1e is a perspective view of the radio frequency coaxial pin contact 2 with a claw 8-1, and fig. 1f is a perspective view of a clamp plate 6.
Fig. 2a is a bottom view of the printed board soldering socket of the present invention, fig. 2B is a front view of the printed board soldering socket of the present invention, fig. 2C is a sectional view (A-A) of the printed board soldering socket of the present invention, fig. 2d is a sectional view (B-B) of the printed board soldering socket of the present invention, fig. 2e is a sectional view (C-C) of the printed board soldering socket of the present invention, fig. 2f is a perspective view of the printed board soldering socket of the present invention, fig. 2g is a perspective view of the socket housing 16, fig. 2h is a sectional view of the bent coaxial jack contact 15, fig. 2i is a perspective view of the bent coaxial jack contact 15 with the claws 8-1, and fig. 2j is a perspective view of the bracket 18.
Detailed Description
The invention is described in further detail below with reference to the attached drawing figures:
the invention relates to a structure of a high-frequency high-speed integrated plug and socket with an anti-misplug function, which comprises a free-termination cable plug and a printed board welding socket matched with the free-termination cable plug. As shown in fig. 1a and 1b, the free termination cable plug includes a plurality of stranded wire flexible pin contacts 1 and a plurality of radio frequency coaxial pin contacts 2, a plug sealant 3-1 for fixing the plurality of stranded wire flexible pin contacts 1, a fixed radio frequency coaxial pin contact 2 including a locking mounting hole, and a plug housing 4 for wrapping the plug mounting plate 5, the plug mounting plate 5 for positioning the stranded wire flexible pin contacts 1 is symmetrically disposed at two sides inside the plug housing 4, a wire clamping plate 6 for fixing the radio frequency coaxial cable 12 and a star cable 13 and a fixing screw 7 for fixing the plug housing 4 and the wire clamping plate 6 are disposed at the tail of the plug housing 4, a plug claw 8-1 for realizing a locking effect is disposed on the radio frequency coaxial pin contact 2, a locking screw 9, a spring washer 10 and a rivet sleeve 11 are disposed on the radio frequency coaxial cable 12 and the radio frequency coaxial pin contact 2, and the star cable 13 is connected with the stranded wire flexible pin contact 1.
As shown in fig. 1a and 1b, the twisted-wire flexible pin contacts 1 are symmetrically distributed on two sides of the plug housing 4, and are positioned through holes of the plug mounting plate 5, and are formed by two rows, each row is multiple, four twisted-wire flexible pin contacts 1 form a U-shaped arrangement, a diagonal line forms a pair of differential contacts, the differential contacts and the star cable 13 are fixed into a component through crimping, the twisted-wire flexible pin contacts 1 with the star cable 13 are arranged in the holes of the plug mounting plate 5, and after the plug mounting plate 5 is positioned, the twisted-wire flexible pin contacts 1 are fixed with the plug housing 4 through filling the tail of the plug mounting plate 5 with the plug sealant 3-1.
As shown in fig. 1a, 1b, 1c and 1e, the rf coaxial pin contacts 2 are distributed in each hole site in the middle area of the plug housing 4, and are arranged in a single row, each rf coaxial pin contact 2 and the rf coaxial cable 12 are assembled into a cable assembly by welding, and the rf coaxial pin contacts 2 with the rf coaxial cable 12 are fixed in the square steps of each hole site of the plug housing 4 by the plug claw 8-1.
As shown in fig. 1d, the rf coaxial pin contact 2 is composed of an inner conductor pin 2-1, a front pin insulator 2-2, a rear pin insulator 2-3 and an outer pin conductor 2-4, the front pin insulator 2-2 is wrapped in the outer pin conductor 2-4, the inner conductor pin 2-1 passes through the front pin insulator 2-2 through barb press fit to meet the interface requirement, and after the inner conductor pin 2-1 is press-fit in place, the rear pin insulator 2-3 is disposed on the rear end face of the inner conductor pin 2-1 and is sandwiched between the inner conductor pin 2-1 and the rf coaxial cable 12.
As shown in fig. 1a and 1b, the locking screws 9 with locking function are arranged in locking mounting holes at two ends of the plug housing 4, penetrate through the spring washers 10, are riveted with the plug housing 4 through the riveting sleeves 11, and realize locking function with the printed board welding socket.
During assembly, the first step is as follows: firstly, respectively placing the plug mounting plates 5 into symmetrical step cavities on two sides of the plug housing 4, then crimping a plurality of stranded wire flexible contact pin contacts 1 with an adaptive star-shaped cable 13, wherein four stranded wire flexible contact pin contacts 1 are adaptive to one star-shaped cable 13, then respectively placing the plurality of stranded wire flexible contact pin contacts 1 with the star-shaped cable 13 into each hole site of the plug mounting plates 5, positioning the stranded wire flexible contact pin contacts 1 with the star-shaped cable 13 by using a positioning tool, filling and sealing a gap formed between the plug mounting plates 5 and the tail part of the plug housing 4 with a plug sealant 3-1 and filling the gap with the step end surface of the plug housing 4 to be not higher than the end surface of the wire clamping plate 6, and finishing the position fixation of the stranded wire flexible contact pin contacts 1 with the star-shaped cable 13; and a second step of: firstly, the plug claw 8-1 is arranged on the radio frequency coaxial pin contact 2, then the radio frequency coaxial pin contact 2 and the adaptive radio frequency coaxial cable 12 are welded and assembled, and finally, a plurality of radio frequency coaxial pin contacts 2 with the radio frequency coaxial cables 12 are respectively arranged in each hole position arranged in the middle of the plug shell 4 for position fixing; and a third step of: clamping the radio frequency coaxial cable 12 and the star cable 13 by the clamp 6, and then screwing the fixing screw 7 into the threaded hole of the plug housing 4 through the through hole of the clamp 6, wherein the clamp 6 and the plug housing 4 are fixed together; fourth step: firstly, a locking screw 9 realizing the locking function sequentially penetrates through a spring washer 10 and a riveting sleeve 11, then the riveting sleeve 11 with the spring washer 10 and the locking screw 9 penetrates through locking mounting holes at two ends of a plug shell 4 to be in expansion riveting, the locking screw is fixed with the plug shell 4, the other end of the riveting sleeve 11 is in riveting, and the locking screw 9 cannot fall out from the riveting sleeve 11 and can rotate freely. And finishing the four steps, namely finishing the assembly of the free-termination cable plug.
As shown in fig. 2a, 2b, 2c, 2d, 2e and 2f, the printed board welding socket comprises a plurality of bent rigid socket contacts 14, a plurality of bent coaxial socket contacts 15, socket sealant 3-2 for fixing the bent rigid socket contacts 14, a socket shell 16 comprising locking mounting holes and mounting fixing holes for the printed board, a package socket mounting plate 17 and fixing the bent coaxial socket contacts 15, socket mounting plates 17 for positioning the bent rigid socket contacts 14, brackets 18 for positioning and protecting the bent rigid socket contacts 14, screws 19 and nuts 20 for locking the locking mounting holes arranged at two ends of the socket shell 16, and socket claws 8-2 arranged on the bent coaxial socket contacts 15.
As shown in fig. 2a, fig. 2b, fig. 2d and fig. 2f, the bent rigid jack contacts 14 are symmetrically distributed on two sides of the socket housing 16, and are positioned by each hole site of the socket mounting plate 17, and are formed by two rows, wherein the lengths of the bent rigid jack contacts in each row are the same, the lengths of the bent rigid jack contacts in different rows are different, the bent rigid jack contacts in different rows are respectively arranged in each hole site of the socket mounting plate 17, the number of rows and the spacing of the bent rigid jack contacts are the same as those of the twisted flexible pin contacts 1 of the free termination cable plug, and are matched with the positions and the shapes of the twisted flexible pin contacts 1, and after the bent rigid jack contacts 14 are positioned in each hole site of the socket mounting plate 17, the tail of the socket mounting plate 17 is filled with socket sealant 3-2 and fixed with the socket housing 16.
As shown in fig. 2a, 2b, 2c and 2f, the plurality of bent coaxial jack contacts 15 are arranged in a single row, the bent coaxial jack contacts 15 are distributed in each hole in the middle area of the socket housing 16, and are matched with the position and shape of the rf coaxial pin contacts 2, and are fixed in the square steps of each hole in the socket housing 16 through the socket claw 8-2.
As shown in fig. 2h, the bent coaxial jack contact 15 is composed of an inner conductor jack 15-1, a front hole end insulator 15-2, an outer hole end conductor 15-3, a rear hole end insulator 15-4 and a gland 15-5, wherein the inner conductor jack 15-1 is fixed in the front hole end insulator 15-2 through interface positioning, the front hole end insulator 15-2 is wrapped in the outer hole end conductor 15-3, then the rear hole end insulator 15-4 passes through the inner conductor jack 15-1 and is fixed with the outer hole end conductor 15-3 through barb press fit, and finally the gland 15-5 is fixed with the outer hole end conductor 15-3 through interference press fit.
As shown in fig. 2b, 2c, 2d, and 2j, the bracket 18 is pressed into the socket housing 16 by interference after passing through the plurality of curved rigid receptacle contacts 14, and the bracket 18 is flush with the end face of the socket housing 16.
As shown in fig. 2a, 2b and 2e, the locking screws 19 pass through locking mounting holes at two ends of the socket housing 16, are fixed with the socket housing 16 through nuts 20, have the same positions and the same number as the locking screws 9 of the free-end cable plug, and are matched with the shape of the locking screws 9.
During assembly, the first step is as follows: firstly, respectively loading the socket mounting plates 17 into symmetrical step cavities on two sides of the socket housing 16, respectively loading a plurality of bent rigid jack contacts 14 into each hole of the socket mounting plates 17, positioning through the step holes with milling edges of the socket mounting plates 17, and finally filling and sealing a gap formed between the socket mounting plates 17 and the tail of the socket housing 16 by using the socket sealant 3-2 and filling the gap with the end face of the socket housing 16 to be flush with the end face of the socket housing 16, thereby completing the position fixation of the bent rigid jack contacts 14; and a second step of: firstly, the socket claw 8-2 is arranged on the bent coaxial jack contact 15, and then the bent coaxial jack contact 15 is respectively arranged in each hole position arranged in the middle of the socket shell 16 for position fixing; and a third step of: the screw 19 for locking is first passed through locking mounting holes at both ends of the socket housing 16, and then engaged with external threads of the screw 19 for locking by internal threads of the nut 20, so that the screw 19 for locking is fixed to the socket housing 16. And finishing the three steps, namely finishing the assembly of the printed board welding socket.
As shown in fig. 1b, fig. 1c, fig. 2a, fig. 2f, and fig. 2g, the plug housing 4 plugging interface is a trapezoid interface with symmetric concave-convex keys, correspondingly, the socket housing 16 plugging interface is designed with a trapezoid interface with symmetric concave-convex grooves adapted to plugging, and the concave-convex keys are adapted to the concave-convex grooves in position and shape, so that a good function of preventing misplug is achieved through the above design.
As shown in fig. 1b and fig. 2a, the radio frequency coaxial pin contact 2 and the bent coaxial jack contact 15 are distributed in the middle of the interface, the stranded wire flexible pin contact 1 and the bent rigid jack contact 14 are distributed at two sides of the interface, the integrated interface is designed symmetrically, the signal transmission requirement is met, the overall dimension is reduced to the maximum extent, and parallel plugging is facilitated during plugging.
As shown in fig. 1a, fig. 1b and fig. 2a, the twisted-wire flexible pin contact 1 and the bent rigid jack contact 14 are symmetrically arranged in a U shape at four corners of two sides of the interface, so as to meet the requirement of definition of high-speed signal transmission of a printed board, and for a free-terminated cable plug, the U-shaped arrangement can ensure good adaptation of the twisted-wire flexible pin contact 1 and the star-shaped cable 13.
As shown in fig. 1b and fig. 2a, the contact spacing between the rf coaxial pin contacts 2 and between the bent coaxial jack contacts 15 is 3.5mm, and the small-spacing integration is realized through the miniaturized design structure of the rf coaxial pin contacts 2 and the bent coaxial jack contacts 15, so that the overall dimension of the product is greatly reduced, and the weight of the product is reduced.
As shown in fig. 1a, fig. 1b, fig. 2a, fig. 2b, fig. 2d and fig. 2f, the flexible pin contact 1 of the stranded wire is flexibly inserted into and pulled out of the curved rigid jack contact 14, the diameter of the tangent circle of the bulge part of the flexible pin contact 1 of the stranded wire is larger than the inner diameter of the curved rigid jack contact 14, compression deformation and axial rotation elongation are generated due to stress during operation, the flexible pin contact is tightly contacted with multiple points of the jack, good elastic contact performance and vibration and impact resistance are achieved, and besides radial elastic shrinkage of the flexible pin contact 1 of the stranded wire, axial rotation elongation is also accompanied, so that the flexible pin contact has smaller insertion force and separation force, long service life, reliable contact and light insertion and pull out, and reliable transmission of high-speed signals is achieved.
As shown in fig. 1a, the locking screw 9 and the plug housing 4 are designed to have a non-loosening fixing structure, and the locking screw 9 is engaged with and disengaged from the internal thread of the screw 19 to achieve locking by the external thread of the locking screw 9 on the premise of ensuring the implementation of the locking function.
As shown in fig. 1a, 1b, 2a and 2f, the plug mounting plate 5 and the socket mounting plate 17 are symmetrically distributed on two sides of the interface, so that the design thought greatly reduces the processing difficulty, the parts are universal, and the production cost is greatly reduced.
As shown in fig. 1a, 1c, 1e, 2c, 2g and 2i, the radio frequency coaxial pin contact 2 is clamped and fixed at four corners of the square steps of the plug housing 4 and the socket housing 16 respectively through the plug claw 8-1 and the bent coaxial jack contact 15, and the fixing mode of the radio frequency coaxial pin contact 2 and the bent coaxial jack contact 15 provides a new contact fixing method in the field of miniaturized connectors, and the radio frequency coaxial pin contact is novel in structure and strong in reliability.
As shown in fig. 1c, fig. 1e, fig. 2g and fig. 2i, the plug claw 8-1, the radio frequency coaxial pin contact 2, the socket claw 8-2 and the bent coaxial jack contact 15 are designed with anti-rotation bosses, and through the design of the anti-rotation bosses, the accurate positioning of the claw 8-1 at four corners of the square steps of the plug housing 4 and the socket claw 8-2 at four corners of the socket housing 16 is ensured, so that the design thought is novel and the practicability is strong.
As shown in fig. 1a, fig. 1e, fig. 2f, and fig. 2i, the rf coaxial pin contact 2, the plug housing 4, the bent coaxial jack contact 15, and the socket housing 16 are designed with anti-rotation edge milling structures, and by the design of anti-rotation edge milling, it is ensured that after the rf coaxial pin contact 2 is installed in the plug housing 4, the bent coaxial jack contact 15 is installed in the socket housing 16, so that a good anti-rotation effect is achieved, the installation and fixation of the contact and the printed board are facilitated, the skew of the opposite-plug end surface contact is prevented, and the welding performance of the cable and the contact is protected.
As shown in fig. 1c and fig. 2g, the plug housing 4 and the socket housing 16 are provided with an anti-slip slot for plugging operation, and the plug housing 4 is designed with an anti-slip slot for plugging operation, so that the anti-slip slot for plugging operation is convenient for a user to plug.
As shown in fig. 1a and 1f, the free-end cable plug is provided with a wire clamping plate 6, so that the radio-frequency coaxial cable 12 and the star-shaped cable 13 are clamped and fixed, and under the limited size, the tail end welding part is protected by the wire clamping design, so that the reliability is high.
As shown in fig. 2b and fig. 2g, the two ends of the socket housing 16 are provided with locking mounting holes and mounting and fixing holes for the printed board, and the design structure simultaneously meets the dual requirements of locking and mounting and fixing, and has reasonable and novel structural design.
The invention is exemplified by the (5+24) core, the number of the electric connector contacts can be expanded and changed on the basis of the structure, the personalized customization requirement can be realized, and the structural design scheme is provided for the series expansion of products.
The invention relates to a free termination cable plug and printed board welding socket mounting, fixing and plugging locking process, which comprises the following steps: firstly, the tail end termination pins of the bent rigid jack contact 14 and the bent coaxial jack contact 15 respectively pass through corresponding hole sites of the printed board, and signal connection with the printed board is realized through welding; then, through the mounting and fixing holes at the two ends of the socket shell 16, the mounting and fixing with the printed board are realized by using standard screw accessories; finally, the trapezoid interface with the symmetrical concave-convex keys of the free termination cable plug is aligned and matched with the trapezoid interface with the symmetrical concave-convex grooves of the printed board welding socket, and then the locking screws 9 with the spring washers 10 at the two ends of the free termination cable plug are alternately screwed into threaded holes of the locking screws 19 of the printed board welding socket, so that the interface is axially inserted in place, the threads of the locking screws are engaged in place, and meanwhile, the free termination cable plug and the printed board welding socket are inserted and locked.
The high-frequency high-speed integrated plug and socket structure with the misplug prevention function has the advantages of novel structure and strong practicability, meets the requirements of integration, miniaturization, interface integration, light plugging, high reliability, customization, misplug prevention, easy assembly, economy, excellent performance and the like, can be expanded in series based on the model spectrum requirement, has good application and popularization values, and has a considerable market prospect.

Claims (10)

1. The utility model provides a structure that has high-frequency high-speed integrated plug and socket of mistake prevention function of inserting which characterized in that: the free-end cable plug comprises a free-end cable plug and a printed board welding socket matched with the free-end cable plug;
the free termination cable plug comprises a plurality of stranded wire flexible pin contacts (1) and a plurality of radio frequency coaxial pin contacts (2), plug sealant (3-1) for fixing the stranded wire flexible pin contacts (1), a fixed radio frequency coaxial pin contact (2) containing locking mounting holes and a plug shell (4) for wrapping the plug mounting plate (5), the plug mounting plate (5) for locating the stranded wire flexible pin contacts (1) is symmetrically arranged on two sides inside the plug shell (4), plug claws (8-1) arranged on the radio frequency coaxial pin contacts (2), locking screws (9) for realizing locking effect, a star-shaped cable (13) is connected with the stranded wire flexible pin contacts (1);
the twisted wire flexible contact pin contacts (1) are symmetrically distributed on two sides of the plug shell (4), each hole site of the plug mounting plate (5) is used for positioning, each row of the twisted wire flexible contact pin contacts is formed by two rows, each row of the twisted wire flexible contact pin contacts is multiple, four twisted wire flexible contact pin contacts (1) form a U-shaped arrangement, a diagonal line of the twisted wire flexible contact pin contacts forms a pair of differential contact elements, the differential contact elements and the star-shaped cables (13) are fixedly manufactured into components through crimping, the twisted wire flexible contact pin contacts (1) with the star-shaped cables (13) are arranged in each hole site of the plug mounting plate (5), and after the plug mounting plate (5) is positioned, the twisted wire flexible contact pin contacts (1) are fixedly connected with the plug shell (4) through filling plug sealant (3-1) at the tail part of the plug mounting plate (5);
the radio frequency coaxial pin contacts (2) are distributed in each hole site in the middle area of the plug shell (4), a plurality of radio frequency coaxial pin contacts are arranged in a single row, each radio frequency coaxial pin contact (2) and the radio frequency coaxial cable (12) are assembled into a cable assembly through welding, and the radio frequency coaxial pin contacts (2) with the radio frequency coaxial cables (12) are fixed in square steps of each hole site of the plug shell (4) through plug claws (8-1);
the radio frequency coaxial contact pin (2) consists of an inner conductor contact pin (2-1), a pin end front insulator (2-2), a pin end rear insulator (2-3) and a pin end outer conductor (2-4), wherein the pin end front insulator (2-2) is wrapped in the pin end outer conductor (2-4), the inner conductor contact pin (2-1) passes through the pin end front insulator (2-2) through barb press fit to meet interface requirements, and after the inner conductor contact pin (2-1) is press-fit in place, the pin end rear insulator (2-3) is arranged on the rear end face of the inner conductor contact pin (2-1) and is clamped between the inner conductor contact pin (2-1) and the radio frequency coaxial cable (12);
the printed board welding socket comprises a plurality of bent rigid jack contacts (14), a plurality of bent coaxial jack contacts (15), socket sealant (3-2) for fixing the bent rigid jack contacts (14), a socket shell (16) which comprises locking mounting holes, socket mounting plates (17) and fixed bent coaxial jack contacts (15) and is arranged on two sides of the interior of the socket shell (16), socket mounting plates (17) for positioning the bent rigid jack contacts (14), brackets (18) for positioning and protecting the bent rigid jack contacts (14), screws (19) and nuts (20) which are arranged on two ends of the socket shell (16) and used for locking the locking mounting holes, and socket claws (8-2) arranged on the bent coaxial jack contacts (15);
the bent type rigid jack contacts (14) are symmetrically distributed on two sides of the socket shell (16), are positioned through all hole sites of the socket mounting plate (17), are formed by two rows, are multiple in each row, have the same length, are different in different lengths, are respectively arranged in all hole sites of the socket mounting plate (17), are identical in number of rows, number and spacing with the stranded wire flexible contact pin contacts (1) of the free-end cable plug, are matched with the positions and the shapes of the stranded wire flexible contact pin contacts (1), are positioned in all hole sites of the socket mounting plate (17), and are then fixed with the socket shell (16) through filling socket sealant (3-2) at the tail of the socket mounting plate (17);
the bent coaxial jack contacts (15) are arranged in a single row, the bent coaxial jack contacts (15) are distributed in all hole sites in the middle area of the socket shell (16) and are matched with the positions and the shapes of the radio frequency coaxial pin contacts (2), and the bent coaxial jack contacts are fixed in four steps of all hole sites of the socket shell (16) through socket claws (8-2);
the bent coaxial jack contact (15) consists of an inner conductor jack (15-1), a front hole end insulator (15-2), an outer hole end conductor (15-3), a rear hole end insulator (15-4) and a gland (15-5), wherein the inner conductor jack (15-1) is fixedly arranged in the front hole end insulator (15-2) through interface positioning, the front hole end insulator (15-2) is wrapped in the outer hole end conductor (15-3), the rear hole end insulator (15-4) penetrates through the inner conductor jack (15-1) and is fixedly arranged with the outer hole end conductor (15-3) through barb press fit, and finally the gland (15-5) is fixedly arranged with the outer hole end conductor (15-3) through interference press fit;
the bracket (18) is pressed into the socket shell (16) in an interference manner after passing through the plurality of bent rigid jack contacts (14), and the bracket (18) is flush with the end surface of the socket shell (16);
the screws (19) for realizing locking penetrate through locking mounting holes at two ends of the socket shell (16) and are fixed with the socket shell (16) through nuts (20), are the same as the locking screws (9) of the free-end cable plug in position and number, and are matched with the locking screws (9) in shape;
during insertion, the free-end cable plug and the printed board welding socket are axially inserted in place through trapezoid interfaces respectively provided with anti-misplug symmetrical concave-convex keys and concave-convex grooves, and then locking screws (9) at two ends of the free-end cable plug are alternately screwed into threaded holes of locking screws (19) of the printed board welding socket to complete insertion and locking.
2. The structure of the high-frequency and high-speed integrated plug and socket with the misplug preventing function according to claim 1, wherein the structure is characterized in that: the twisted wire flexible contact pin contact (1) and the bent rigid jack contact (14) are symmetrically arranged in a U shape at four corners of two sides of the interface.
3. The structure of the high-frequency and high-speed integrated plug and socket with the misplug preventing function according to claim 1, wherein the structure is characterized in that: the contact spacing between the radio frequency coaxial pin contacts (2) and between the bent coaxial jack contacts (15) is 3.5mm.
4. The structure of the high-frequency and high-speed integrated plug and socket with the misplug preventing function according to claim 1, wherein the structure is characterized in that: the stranded wire flexible contact pin contact (1) and the bent rigid jack contact (14) are flexibly inserted and pulled out, so that reliable transmission of high-speed signals is realized.
5. The structure of the high-frequency and high-speed integrated plug and socket with the misplug preventing function according to claim 1, wherein the structure is characterized in that: the locking screw (9) and the plug housing (4) are not loose in design and are fixed, namely, the locking screw (9) is arranged in locking mounting holes at two ends of the plug housing (4), penetrates through a spring washer (10) and is riveted with the plug housing (4) through a riveting sleeve (11).
6. The structure of the high-frequency and high-speed integrated plug and socket with the misplug preventing function according to claim 1, wherein the structure is characterized in that: the plug claw (8-1) and the radio frequency coaxial pin contact (2) and the socket claw (8-2) and the bent coaxial jack contact (15) are provided with anti-rotation bosses.
7. The structure of the high-frequency and high-speed integrated plug and socket with the misplug preventing function according to claim 1, wherein the structure is characterized in that: the radio frequency coaxial pin contact (2) and the plug shell (4) and the bent coaxial jack contact (15) and the socket shell (16) are designed to have anti-rotation edge milling structures.
8. The structure of the high-frequency and high-speed integrated plug and socket with the misplug preventing function according to claim 1, wherein the structure is characterized in that: the plug housing (4) and the socket housing (16) are provided with filling and sealing anti-slip grooves, and the plug housing (4) is provided with plug operation anti-slip grooves.
9. The structure of the high-frequency and high-speed integrated plug and socket with the misplug preventing function according to claim 1, wherein the structure is characterized in that: the free termination cable plug is characterized in that a clamp plate (6) for clamping and fixing the radio frequency coaxial cable (12) and the star cable (13) is arranged at the tail part of the plug shell (4), and a fixing screw (7) for fixing the plug shell (4) and the clamp plate (6) is arranged.
10. The structure of the high-frequency and high-speed integrated plug and socket with the misplug preventing function according to claim 1, wherein the structure is characterized in that: both ends of the socket shell (16) are provided with printed board mounting and fixing holes.
CN202310217590.2A 2023-03-08 2023-03-08 Structure of high-frequency high-speed integrated plug and socket with misplug prevention function Pending CN116565642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310217590.2A CN116565642A (en) 2023-03-08 2023-03-08 Structure of high-frequency high-speed integrated plug and socket with misplug prevention function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310217590.2A CN116565642A (en) 2023-03-08 2023-03-08 Structure of high-frequency high-speed integrated plug and socket with misplug prevention function

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Publication Number Publication Date
CN116565642A true CN116565642A (en) 2023-08-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116937072A (en) * 2023-09-15 2023-10-24 苏州正北连接技术有限公司 Compact flexible connecting device and use method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116937072A (en) * 2023-09-15 2023-10-24 苏州正北连接技术有限公司 Compact flexible connecting device and use method thereof
CN116937072B (en) * 2023-09-15 2023-11-28 苏州正北连接技术有限公司 Compact flexible connecting device and use method thereof

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