CN117154455B - Connector device and assembling method thereof - Google Patents
Connector device and assembling method thereof Download PDFInfo
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- CN117154455B CN117154455B CN202311408306.6A CN202311408306A CN117154455B CN 117154455 B CN117154455 B CN 117154455B CN 202311408306 A CN202311408306 A CN 202311408306A CN 117154455 B CN117154455 B CN 117154455B
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000004020 conductor Substances 0.000 claims abstract description 172
- 239000012212 insulator Substances 0.000 claims abstract description 18
- 230000007704 transition Effects 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 113
- 230000013011 mating Effects 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 21
- 238000003466 welding Methods 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 230000006854 communication Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 206010048669 Terminal state Diseases 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
-
- 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
- H01R13/6461—Means for preventing cross-talk
-
- 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
- H01R13/6473—Impedance matching
-
- 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
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The present invention relates to the field of signal connection, and in particular, to a connector device and an assembling method thereof. The connector device comprises a high-frequency connector and a single-pair differential high-frequency cable connected with the rear end of the high-frequency connector. The design of the fully-shielded outer conductor can effectively avoid the interference of the cable in the connector from the external complex electromagnetic environment and also avoid the pollution of the high-frequency signal in the connector to the external electromagnetic environment. The connectable single-pair differential cable has two signal wires, the outer layers of the signal wires are provided with insulators and an optional shielding structure, and the signal wires are separated by the insulators or the insulators plus shielding conductors. The full-shielding single-pair differential line high-frequency connector is axially provided with a butt-fit contact section and a cable connecting section, and reliable mechanical and high-frequency electrical performance connection between the connector and the butt-fit end and between the connector and the cable can be realized simultaneously. By deforming the structure of the impedance control section, the smooth transition from the connector to the time domain impedance of the single-pair differential line is realized, so that the influence of high-frequency signal reflection and derivative problems thereof is reduced.
Description
Technical Field
The present invention relates to a transmission device, and more particularly, to a connector device.
Background
With the rapid development of modern information communication technology and new energy automobiles, everything interconnection is world oriented, and the modern industry has more and more information transmission channel requirements and higher signal transmission bandwidth requirements, and has posed serious challenges for miniaturization, low reflection, broadband and electromagnetic compatibility design of high-frequency connectors. Under the condition of impedance mismatch, the effective communication distance is often greatly shortened or the effective transmission rate is reduced, and the problem related to signal integrity is easy to occur after the high-speed signal waveform of the transmitting chip passes through the transmission channel.
The technical state of the conventional products comprises the following characteristics and defect problems, and the technical state is as follows:
a non-360 radial complete shielding design;
the shielding design is decoupled from signal transmission, and influence of shielding on signal transmission of the connector is ignored;
the insulator-free guide design is easy to insert the inner conductor of the damaged connector;
the connector has low bandwidth and can only support the physical layer chip to communicate at a lower rate;
the outer conductor is not guided and shielded, and the outer conductor spring arm is easy to damage in the matching process;
the elastic arm contact convex points of the outer conductor are positioned at the same position in the axial direction, so that the connector is excessively large in matching force;
the welding surface without the salient points is contacted, the instability factors are more, and the welding failure is easy to occur;
the insulating medium is axially clamped and fixed in the outer conductor, so that the requirement on the assembly process is high;
under the condition that the inner conductor is installed in an insulator and is inclined, the end faces of petals are easy to prop against the stopping steps to be damaged;
the impedance mismatch of the cable parting line is not processed;
the state of the terminal opening cannot be monitored radially by the observation window without the terminal state.
Disclosure of Invention
The present invention aims to solve the above-mentioned drawbacks and provides a connector device.
In order to overcome the defects in the background art, the technical scheme adopted by the invention for solving the technical problems is as follows: the connector device comprises a high-frequency connector and a single-pair differential high-frequency cable connected with the rear end of the high-frequency connector, wherein the high-frequency connector comprises an outer conductor of an electrical distribution reference surface part, an inner conductor connected with a cable signal part, and a support transition part for connecting an electric signal from the cable part to the electrical distribution reference surface part, the support transition part is an insulating medium, and the rear end of the inner conductor is connected with the single-pair differential high-frequency cable;
the high-frequency connector comprises 4 functional areas in the axial direction, wherein the 4 functional areas are respectively a mating contact section which is electrically connected with a mating connector, a welding fixing section which is used for fixing a metal shielding front shell and a metal shielding rear shell through welding, an impedance matching section which is used for improving differential characteristic impedance change caused by wire stripping by changing a shape structure, and a cable fixing section which is used for realizing reliable mechanical connection between the connector and a cable by changing the shape structure;
the outer conductor comprises a metal shielding front shell and a metal shielding rear shell, the metal shielding front shell and the metal shielding rear shell are positioned at the outermost side of the high-frequency connector, and the metal shielding rear shell is connected at a welding fixing section of the rear end of the metal shielding front shell in an inserted mode;
the insulating medium includes a guide protection portion extending to be connected to an end face of the inner conductor and a main support portion accommodating and fixing the inner conductor in the outer conductor;
the inner conductor comprises two parallel metal conductors I and metal conductors II, and the metal conductors I and II are surrounded by the outer conductor after being inserted into an insulating medium;
the metal shielding front shell is provided with a port guide for being in mutual connection with the mating connector, and the port guide and the main body enable certain radial deviation, deflection or position misalignment caused by deformation to be allowed between the metal shielding front shell and the mating connector when the port guide and the main body are mutually matched, so that the mating can be smoothly carried out; the metal shielding front shell is provided with at least 1 outer conductor forward finger contact spring arm and at least 1 outer conductor backward finger contact spring arm, and the outer conductor forward finger contact spring arm and the outer conductor backward finger contact spring arm are in electrical contact when being mutually matched with the counter connector; the outer conductor forward finger contact spring arm is provided with an extension part extending below the surface plane of the outer conductor, and the embedding depth of the extension part is D3; the front end of the outer conductor forward finger contact spring arm is provided with a contact convex hull II, the front end of the outer conductor backward finger contact spring arm is provided with a contact convex hull I, the contact convex hull II and the contact convex hull I are provided with a dislocation distance D2 in the axial direction, and at least 1 stop-in convex part which axially supports the end face stop position of the opening part of the metal shielding rear shell when the metal shielding rear shell is assembled is arranged on the metal shielding front shell at the middle reducing part;
the insulation medium is flat, channels assembled with the inner conductor are arranged in the insulation medium, separation baffle strips are arranged between the channels so that the channels are not interfered with each other, the head of the insulation medium is provided with an insulation guide bell mouth, the insulation guide bell mouth extends to the end face of the inner conductor, the inner diameter D4 of the insulation guide bell mouth is smaller than the size of the bell mouth of the head of the inner conductor, and the inner conductor embedding depth D5 is formed from the edge of one side of the inner diameter of the insulation guide bell mouth to the edge of one side of the front end of the inner conductor; the insulating medium is provided with a stop positioning surface and a positioning bulge which are assembled with the metal shielding rear shell, the insulating medium is provided with at least 1 interference convex rib which is used for forming radial extrusion with the metal shielding rear shell in the Y and Z axis directions, the insulating medium is provided with at least 1 stop opening which is smaller than the inner diameter in the Z axis direction, the stop opening is used for realizing stop on the X axis after the inner conductor is assembled and protecting the end part of the inner conductor from deformation, the inner wall of the tail part of the inner channel of the insulating medium is provided with an insulator stop step which is used for realizing forward stop when the inner conductor is assembled, and the tail part of the separation baffle strip which is positioned between the channels in the insulating medium is provided with a branching bulge which is used for improving the creepage distance between the inner conductors, thereby improving the withstand voltage value.
According to another embodiment of the invention, the metal shielding front shell is further provided with at least 3 inward depressions which are used for forming radial extrusion with the outer contour of the opening of the metal shielding rear shell to form a certain degree of fixing when the metal shielding front shell is assembled, and meanwhile, the relative positions of the metal shielding front shell and the metal shielding rear shell are protected from being deviated during the assembly process, and the connection of the metal shielding front shell and the metal shielding rear shell is fixed by welding the inward depressions.
According to another embodiment of the invention, further comprising inwardly projecting barbs and locating grooves in said metallic shield backshell for fitting with an insulating medium.
According to another embodiment of the invention, the inner conductor head is bell mouth-shaped and consists of at least 1 contact spring arm, and at least 1 inner conductor barb and at least 3 forward stop protrusions assembled with the insulating medium are further arranged on the outer side face of the inner conductor, and the forward stop protrusions of the inner conductor are distributed at intervals in the circumferential direction.
According to another embodiment of the present invention, there is at least one outer conductor viewing window on the mating contact section in the Z-axis direction, where the end of the assembled inner conductor is visible from the Z-axis direction, and at least one dielectric viewing window on the metallic shield front shell, where the dielectric viewing window is located on the dielectric, for viewing and determining the status of the inner conductor during the life cycle of connector production, testing and use.
A method of assembling a connector device, the method comprising:
firstly, inserting the whole insulating medium into a metal shielding rear shell, and abutting a backstop positioning surface on the insulating medium with an inward protruding barb on the metal shielding rear shell to realize backstop of the insulating medium in the metal shielding rear shell; the positioning bulge on the insulating medium is clamped into the positioning groove at the front end of the metal shielding rear shell;
inserting the front end of the metal shielding rear shell into the rear end of the metal shielding front shell, so that the front end opening of the metal shielding rear shell is propped against the stop protruding part in the metal shielding front shell;
thirdly, fixing the metal shielding front shell and the metal shielding rear shell by welding inward concave parts on the metal shielding front shell;
fourthly, fixing the inner conductor with a signal wire of a single-pair differential high-frequency cable by crimping;
inserting the inner conductor into the insulating medium, enabling the front end parts of the two finger-shaped contact spring arms of the head part of the inner conductor to be positioned behind the insulating guide bell mouth at the front end of the insulating medium, enabling the front end parts of the two finger-shaped contact spring arms of the head part of the inner conductor to be axially positioned in an insulating medium observation window when being observed from a Z axis, enabling barbs on the inner conductor to be clamped into stop openings on the insulating medium, realizing stop on an X axis, enabling forward stop protrusions on the inner conductor to prop against stop steps of an insulator, realizing forward stop in the assembly direction, and finishing preliminary assembly; and sixthly, simultaneously fastening the cable fixing section at the rear end of the metal shielding rear shell on the single-pair differential high-frequency cable, and deforming the impedance matching section to adjust the characteristic impedance to finish the assembly.
According to another embodiment of the invention, it further comprises the step of inserting the inner conductor into the insulating medium in said fifth step, and observing whether the inner conductor is assembled in place through the outer conductor observation window.
The beneficial effects of the invention are as follows: the connector device has the advantages that the connector device is provided with the butt-fit contact section and the cable connecting section in the axial direction through the arrangement of the multi-section structure, and reliable mechanical and high-frequency electrical performance connection between the connector and the butt-fit end and between the connector and the cable can be realized. By deforming the structure of the impedance control section, the smooth transition from the connector to the time domain impedance of the single-pair differential line can be realized, so that the influence of high-frequency signal reflection and derivative problems thereof can be reduced. The outer conductor is of a full shielding design, so that the cable in the connector can be effectively prevented from being interfered by an external complex electromagnetic environment, and the pollution of a high-frequency signal in the connector to the external electromagnetic environment can be effectively avoided. The connectable single-pair differential cable has two signal wires, the outer layers of the signal wires are provided with insulators and an optional shielding structure, and the signal wires are separated by the insulators or the insulators plus shielding conductors.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of an exploded view of the present invention;
FIG. 3 is a schematic view of the structure of a metallic shielding front shell in the present invention;
fig. 4 is a schematic structural view of a cross-sectional view of a metallic shield front case in the present invention;
FIG. 5 is an enlarged schematic view of portion B of FIG. 4;
FIG. 6 is a schematic view of the structure of a metal shield rear case according to the present invention;
fig. 7 is a schematic structural view of a cross-sectional view of the assembled metallic shield front case and metallic shield rear case of the present invention;
FIG. 8 is a schematic diagram of the structure of an insulating medium according to the present invention;
FIG. 9 is a schematic view of a cross-sectional view of the stop aperture of FIG. 8;
FIG. 10 is a schematic structural view of a cross-sectional view of the insulating medium of the present invention after assembly of the inner conductor thereon;
FIG. 11 is an enlarged schematic view of the portion I of FIG. 10;
FIG. 12 is a schematic view of the mating contact segment of FIG. 1;
FIG. 13 is a schematic view of the structure of the inner conductor of the present invention;
FIG. 14 is a schematic view of the structure of the forward stop tab of the inner conductor of FIG. 13;
fig. 15 is a schematic view showing a state structure in which an inner conductor member is inserted into an insulating medium in the present invention;
fig. 16 is a schematic view showing another state structure of the present invention when the inner conductor member is inserted into the insulating medium;
fig. 17 is a schematic view showing a state structure of the connector and the front metal shielding shell in the mating connection of the present invention
Fig. 18 is a schematic view showing another state structure of the connector of the present invention when the connector is coupled with the metallic shield front case in a mating manner.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. Embodiments of the invention are described herein in terms of various specific embodiments, including those that are apparent to those of ordinary skill in the art and all that come within the scope of the invention.
As shown in fig. 1 and 2, the connector device 1 is a fully-shielded single-pair differential wire connector, and the connector device 1 includes a high-frequency connector 2 and a single-pair differential high-frequency cable 3 connected to the rear end of the high-frequency connector 2. The high frequency connector 2 comprises an outer conductor 4 of the mating electrical reference surface portion, an inner conductor 6 connecting the cable signal portion, and a supporting transition portion connecting the electrical signal from the cable portion to the mating electrical reference surface portion, the supporting transition portion being an insulating medium 5, the rear ends of the inner conductors 6 being connected to a single pair of differential high frequency cables 3. The design of the fully-shielded outer conductor can effectively avoid the interference of the cable in the connector from the external complex electromagnetic environment and also avoid the pollution of the high-frequency signal in the connector to the external electromagnetic environment. The connectable single-pair differential cable has two signal wires, the outer layers of the signal wires are provided with insulators and an optional shielding structure, and the signal wires are separated by the insulators or the insulators plus shielding conductors.
As shown in fig. 1, the high-frequency connector 2 in the drawing includes 4 functional areas in the axial direction, the 4 functional areas being mating contact sections 211 electrically interconnected with the mating connector 8, a solder fixing section 212 fixing the metallic shield front case 4a and the metallic shield rear case 4b by soldering, an impedance matching section 221 changing the shape structure to improve the differential characteristic impedance variation caused by wire stripping, and a cable fixing section 222 changing the shape structure to achieve reliable mechanical connection between the connector and the cable, respectively. The whole is provided with a butt-fit contact section and a cable connecting section in the axial direction, so that reliable mechanical and high-frequency electrical performance connection between the connector and the butt-fit end and between the connector and the cable can be realized simultaneously. By deforming the structure of the impedance control section, the smooth transition from the connector to the time domain impedance of the single-pair differential line can be realized, so that the influence of high-frequency signal reflection and derivative problems thereof can be reduced.
As shown in fig. 2, the outer conductor 4 includes a metallic shield front case 4a and a metallic shield rear case 4b, which are located at the outermost side of the high-frequency connector 2, the metallic shield rear case 4b is insertedly connected at a solder fixing section 212 at the rear end of the metallic shield front case 4a,
as shown in fig. 8, the insulating medium 5 includes a guide protection portion 51 and a main support portion 52, the guide protection portion 51 extending to be connected to an end face of the inner conductor 6, the main support portion 52 accommodating and fixing the inner conductor 6 in the outer conductor 4;
as shown in fig. 13, the inner conductor 6 includes two parallel metal conductors one 6a and two metal conductors two 6b, and the metal conductors one 6a and two 6b are surrounded by the outer conductor 4 after being inserted into the insulating medium 5.
As shown in fig. 3 to 5, the metal shield front case 4a is provided with a port guide 4101 for mating connection with the mating connector 8, and the port guide 4101 allows a radial variation D1 of mating even when the metal shield front case 4a and the mating connector 8 are mated with each other with a certain radial deviation, skew or positional misalignment caused by deformation being allowed between them, as shown in fig. 17 and 18. The metal shielding front shell 4a is provided with at least 1 outer conductor forward finger contact spring arm 4102 and at least 1 outer conductor backward finger contact spring arm 4103, wherein the outer conductor forward finger contact spring arm 4102 and the outer conductor backward finger contact spring arm 4103 are in electrical contact when being mutually matched with the counter connector 8, and the outer conductor forward finger contact spring arm 4102 and the outer conductor backward finger contact spring arm 4103 and the outer conductor 4 surrounding the inner conductor 6 together protect the mutual influence of signal transmission in the connector and the external electromagnetic environment; the outer conductor forward finger contact spring arm 4102 has an extension 4105 extending below the outer conductor surface plane, the embedded depth of the extension 4105 is D3, the depth D3 is designed to allow a certain radial deviation, skew or deformation between the two outer conductors when being mutually matched with the mating connector 8, and the head of the outer conductor forward finger contact spring arm 4102 is not directly contacted when the positions of the two outer conductors are not aligned, and the mating can be smoothly carried out; the front end of the outer conductor forward finger contact spring arm 4102 is provided with a contact convex hull two 4104a, the front end of the outer conductor backward finger contact spring arm 4103 is provided with a contact convex hull one 4104b, the contact convex hull two 4104a and the contact convex hull one 4104b are provided with a dislocation distance D2 in the axial direction, and at least 1 stop-in convex part 4107 which axially supports against the end face of the opening part of the metal shielding rear shell 4b when the metal shielding rear shell 4b is assembled is arranged on the metal shielding front shell 4a at the middle reducing part.
As shown in fig. 3 and 4, the metal shielding front shell 4a is further provided with at least 3 inward recesses 4108 for forming a certain radial extrusion with the external contour of the opening of the metal shielding rear shell 4b during assembly, so as to form a certain degree of fixation, and meanwhile, the relative positions of the metal shielding front shell 4a and the metal shielding rear shell 4b are protected from being deviated during assembly, and the connection of the metal shielding front shell 4a and the metal shielding rear shell 4b is fixed by welding at the inward recesses 4108.
As shown in fig. 6, the metal shield rear case 4b has inwardly protruding barbs 4202 and positioning grooves 4201 therein for fitting with the insulating medium 5.
As shown in fig. 8-11, the insulating medium 5 is flat, channels assembled with the inner conductor 6 are arranged in the insulating medium 5, separation bars are arranged between the channels to prevent the channels from interfering with each other, the head of the insulating medium 5 is provided with an insulating guide horn 5101, the insulating guide horn 5101 extends to the end face of the inner conductor 6, the inner diameter D4 of the insulating guide horn 5101 is smaller than the size of the horn 6101 of the head of the inner conductor, the inner conductor embedding depth D5 is formed from the edge of one side of the inner diameter of the insulating guide horn 5101 to the edge of one side of the front end of the inner conductor 6, and the depth D5 is designed to allow a certain misalignment of the male terminal when the male terminal is mutually matched with the mating connector 8, and also can be smoothly inserted into the horn 6101 of the head of the inner conductor through the insulating guide horn 5101 to prevent the head of the inner conductor from being directly contacted. The outer end surface of the insulating medium 5 is provided with a stop positioning surface 5104 and a positioning protrusion 5103 which are assembled with the metal shielding rear shell 4b, the stop of the assembled insulating medium 5 in the metal shielding rear shell 4b is realized by arranging the stop positioning surface 5104 and an inward protruding barb 4202, and the metal shielding rear shell 4b is provided with a positioning groove 4201, so that the assembly stop of the assembled insulating medium 5 in the metal shielding rear shell 4b is realized. The insulating medium 5 has at least 1 interference bead 5105 for forming radial pressing with the metal shield rear case 4b in the Y and Z axis directions, and together with the positioning projection 5103 and the positioning groove 4201, fixation perpendicular to the X axis direction is achieved.
As shown in fig. 9, the insulating medium 5 has at least 1 stop opening 5106 with an opening width smaller than the inner diameter in the Z-axis direction, and the stop opening 5106 is used for realizing stop on the X-axis after the inner conductor 6 is assembled and protecting the end of the inner conductor 6 from deformation, so as to prevent damage of the contact spring arm during the assembly process. When the inner conductor 6 is installed in the insulating medium 5 from the rear, when the deviation of the position degrees of the two parts exists to interfere with the stop opening 5106, the stress direction of the contact spring arm is perpendicular to the design deformation trend direction on the spring arm, the contact spring arm is relatively difficult to deform, meanwhile, the guide design of the head of the contact spring arm overcomes the deviation to guide the terminal into the stop opening 5106 again to complete assembly, and the condition that the design deformation trend direction on the spring arm is consistent with the interference stress direction to cause failure can not occur.
As shown in fig. 10, an insulator stop step 5107 for realizing forward stop when assembled with an inner conductor 6 is arranged on the inner wall of the tail part of the inner channel of the insulating medium 5, a branching bulge 5108 is arranged at the tail part of the separation barrier between the channels, and the branching bulge 5108 is used for improving the creepage distance between the inner conductors, so that the withstand voltage value is improved.
As shown in fig. 13-14, the head of the inner conductor 6 is bell-mouth-shaped and is composed of at least 1 contact spring arm, at least 1 inner conductor barb 6102 and at least 3 forward stop protrusions 6103 assembled with the insulating medium 5 are further arranged on the outer side surface of the inner conductor 6, the inner conductor forward stop protrusions 6103 are distributed at intervals in the circumferential direction, and the inner conductor forward stop protrusions 6103 protect the inner conductor 6 from uneven stress deflection and other problems during assembly under certain axial forward stress.
As shown in fig. 1, 3 and 8, there is at least one outer conductor viewing window 4106 on the mating contact section 211 in the Z-axis direction, in which the end of the assembled inner conductor 6 is visible from the Z-axis direction, and at least one dielectric viewing window 5102 for viewing and determining the status of the inner conductor during the life cycle of connector production, testing and use, the outer conductor viewing window 4106 being located on the metallic shield front case 4a, and the dielectric viewing window 5102 being located on the dielectric 5. The outer conductor viewing 4106 is used to see if the inner conductor 6 is assembled in place during assembly and if there is damage during assembly.
As shown in fig. 2, 8 and 15, the deformation direction of the contact spring arm of the insulating medium 5 is basically vertical to the deformation direction of the contact spring arm of the inner conductor 6, the stop opening 5106 of the insulating medium 5 is smaller than the inner diameter, when the inner conductor 6 is loaded into the insulating medium 5, and when the position degree deviation of two parts causes the contact spring arm to interfere with the stop opening 5106, the stress direction of the contact spring arm is vertical to the designed deformation trend direction on the spring arm, the contact spring arm is relatively difficult to deform, and meanwhile, the head guiding design of the contact spring arm can overcome the deviation to guide the terminal into the insulator again to complete assembly, so that the failure caused by the coincidence of the designed deformation trend direction on the spring arm and the interference stress direction can not occur.
As shown in fig. 10, 13 and 16, the inner conductor 6 has at least 3 forward stop protrusions 6103, which are used to cooperate with the insulator stop step 5107 to realize forward stop, and form stop points during assembly, and the forward stop protrusions 6103 of the inner conductor are distributed at intervals in the circumferential direction, so as to protect the assembled inner conductor 6 from uneven stress at the stop points when certain axial forward stress exists, and cause defects such as deflection of the inner conductor 6.
A method of assembling a connector device, the method comprising:
firstly, the whole insulating medium 5 is inserted into the metal shielding rear shell 4b, a stop positioning surface 5104 on the insulating medium 5 is propped against an inward protruding barb 4202 on the metal shielding rear shell 4b, and stop of the insulating medium 5 in the metal shielding rear shell 4b is realized; the positioning projections 5103 on the insulating medium 5 are caught in the positioning grooves 4201 at the front end of the metal shield rear case 4 b;
secondly, inserting the front end of the metal shielding rear shell 4b into the rear end of the metal shielding front shell 4a, so that the front end of the metal shielding rear shell 4b is propped against the stop protruding part 4107 in the metal shielding front shell 4 a;
thirdly, fixing the metal shielding front shell 4a and the metal shielding rear shell 4b by welding the inward concave 4108 on the metal shielding front shell 4 a;
fourthly, the inner conductor 6 is fixed with the signal wire of the single-pair differential high-frequency cable 3 by crimping;
fifthly, inserting the inner conductor 6 into the insulating medium 5, enabling the front ends of the two finger-shaped contact spring arms of the head of the inner conductor 6 to be positioned behind the insulating guide horn mouth 5101 at the front end of the insulating medium 5, enabling the front ends of the two finger-shaped contact spring arms of the head of the inner conductor 6 to be axially positioned in the insulating medium observation window 5102 when being observed from the Z axis, enabling the barbs 6102 on the inner conductor 6 to be clamped into the stop openings 5106 on the insulating medium 5, realizing stopping on the X axis, enabling the forward stop protrusions 6103 on the inner conductor 6 to abut against the insulator stop steps 5107, realizing forward stop in the assembly direction, and completing preliminary assembly;
and sixthly, simultaneously fastening the cable fixing section 222 at the rear end of the metal shielding rear shell 4b on the single-pair differential high-frequency cable 3, and deforming the impedance matching section 221 to adjust the characteristic impedance, thereby completing the assembly.
The invention can be widely applied to various radio frequency interconnection systems and high-speed digital signal interconnection systems, in particular to the field of vehicle-mounted signal interconnection. The device has the characteristics of miniaturization, large bandwidth, low cost, high reliability and the like, greatly expands the bandwidth of the connector to realize bidirectional communication of up to 20Gbps, can integrate various high-frequency interfaces on automobiles on a large scale, and is more suitable for various novel communication modes of new energy and intellectualization upcoming in industry.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. Connector device, the connector device (1) includes high frequency connector (2) and single pair differential high frequency cable (3) that high frequency connector (2) rear end is connected, its characterized in that:
the high-frequency connector (2) comprises an outer conductor (4) of the distribution electric reference surface part, an inner conductor (6) connected with the cable signal part, and a support transition part for connecting the electric signal from the cable part to the distribution electric reference surface part, wherein the support transition part is an insulating medium (5), and the rear end of the inner conductor (6) is connected with a single-pair differential high-frequency cable (3);
the high-frequency connector (2) comprises 4 functional areas in the axial direction, wherein the 4 functional areas are respectively a mating contact section (211) electrically interconnected with a mating connector (8), a welding fixing section (212) for fixing a metal shielding front shell (4 a) and a metal shielding rear shell (4 b) through welding, an impedance matching section (221) for changing a shape structure to improve differential characteristic impedance change caused by wire stripping, and a cable fixing section (222) for changing the shape structure to realize reliable mechanical connection between the connector and a cable;
the outer conductor (4) comprises a metal shielding front shell (4 a) and a metal shielding rear shell (4 b), the metal shielding rear shell (4 b) is positioned at the outermost side of the high-frequency connector (2), and the metal shielding rear shell (4 b) is connected at a welding fixing section (212) at the rear end of the metal shielding front shell (4 a) in an inserted mode;
the insulating medium (5) comprises a guiding protection portion (51) and a main support portion (52), the guiding protection portion (51) extending to be connected to an end face of the inner conductor (6), the main support portion (52) accommodating and fixing the inner conductor (6) in the outer conductor (4);
the inner conductor (6) comprises two parallel metal conductors I (6 a) and metal conductors II (6 b), and the metal conductors I (6 a) and the metal conductors II (6 b) are surrounded by the outer conductor (4) after being inserted into an insulating medium (5);
the metal shielding front shell (4 a) is provided with a port guide (4101) for being in mutual matching connection with the counter connector (8), and the port guide (4101) and the main body can smoothly carry out the radial change D1 of the counter matching when a certain radial deviation, skew or deformation caused by the position misalignment exists between the metal shielding front shell (4 a) and the counter connector (8) when the metal shielding front shell is in mutual matching with the counter connector; the metal shielding front shell (4 a) is provided with at least 1 outer conductor forward finger contact spring arm (4102) and at least 1 outer conductor backward finger contact spring arm (4103), and the outer conductor forward finger contact spring arm (4102) and the outer conductor backward finger contact spring arm (4103) are in electrical contact when being mutually matched with the counter connector (8); the outer conductor forward finger contact spring arm (4102) has an extension (4105) extending below the outer conductor surface plane, the depth of embedding of the extension (4105) being D3; the front end of the outer conductor forward finger contact spring arm (4102) is provided with a contact convex hull II (4104 a), the front end of the outer conductor backward finger contact spring arm (4103) is provided with a contact convex hull I (4104 b), the contact convex hulls II (4104 a) and the contact convex hull I (4104 b) are provided with a dislocation distance D2 in the axial direction, the metal shielding front shell (4 a) is provided with at least 1 stop convex part (4107) which axially supports against the mouth end face of the metal shielding rear shell (4 b) when the metal shielding rear shell (4 b) is assembled at the middle reducing position;
the insulation medium (5) is integrally flat, channels assembled with the inner conductor (6) are arranged in the insulation medium (5), separation baffle strips are arranged between the channels so that the channels are not interfered with each other, the head of the insulation medium (5) is provided with an insulation guide horn mouth (5101), the insulation guide horn mouth (5101) extends to the end face of the inner conductor (6), the inner diameter D4 of the insulation guide horn mouth (5101) is smaller than the size of the horn mouth (6101) at the head of the inner conductor, and the inner conductor embedding depth D5 is formed from the edge of one side of the inner diameter of the insulation guide horn mouth (5101) to the edge of one side of the front end of the inner conductor (6); the anti-creep insulation device comprises an insulation medium (5), wherein a retaining positioning surface (5104) and a positioning protrusion (5103) are arranged on the outer end surface of the insulation medium (5) and are in assembly with a metal shielding rear shell (4 b), at least 1 interference protruding rib (5105) which is used for forming radial extrusion with the metal shielding rear shell (4 b) in the Y and Z axis directions is arranged on the insulation medium (5), the insulation medium (5) is provided with a retaining opening (5106) with at least 1 opening width smaller than the inner diameter in the Z axis direction, the retaining opening (5106) is used for realizing retaining on the X axis after the inner conductor (6) is assembled and protecting the end part of the inner conductor (6) from deformation, an insulator retaining step (5107) which is used for realizing forward retaining during assembly with the inner conductor (6) is arranged on the inner wall of the tail part of the inner channel of the insulation medium (5), and a branching protrusion (5108) which is used for improving the creepage distance between the inner conductors and thus improving the withstand voltage value is arranged at the tail part of the separation barrier bar between the channels of the insulation medium (5).
2. A connector device as claimed in claim 1, wherein: the metal shielding front shell (4 a) is also provided with at least 3 inward depressions (4108) which are used for forming certain radial extrusion with the outer contour of the opening of the metal shielding rear shell (4 b) during assembly so as to form a certain degree of fixation, meanwhile, the relative positions of the metal shielding front shell (4 a) and the metal shielding rear shell (4 b) are protected from being deviated during assembly, and the connection of the metal shielding front shell (4 a) and the metal shielding rear shell (4 b) is fixed in a welding mode at the inward depressions (4108).
3. A connector device as claimed in claim 1, wherein: the metal shield rear housing (4 b) has inwardly protruding barbs (4202) and positioning grooves (4201) therein for fitting with the insulating medium (5).
4. A connector device as claimed in claim 1, wherein: the head of the inner conductor (6) is bell-mouth-shaped and consists of at least 1 contact spring arm, at least 1 inner conductor barb (6102) and at least 3 forward stop protrusions (6103) which are assembled with the insulating medium (5) are further arranged on the outer side face of the inner conductor (6), and the forward stop protrusions (6103) of the inner conductor are distributed at intervals in the circumferential direction.
5. A connector device as claimed in claim 1, wherein: the butt-fit contact section (211) is provided with at least one outer conductor observation window (4106) capable of observing the end part of the assembled inner conductor (6) from the Z-axis direction and at least one insulating medium observation window (5102) for observing and judging the state of the inner conductor in the life cycle of connector production, test and use, the outer conductor observation window (4106) is positioned on the metal shielding front shell (4 a), and the insulating medium observation window (5102) is positioned on the insulating medium (5).
6. A method of assembling a connector device according to claim 1, comprising:
firstly, the whole insulating medium (5) is inserted into the metal shielding rear shell (4 b), a stop positioning surface (5104) on the insulating medium (5) is propped against an inward protruding barb (4202) on the metal shielding rear shell (4 b), and the stop of the insulating medium (5) in the metal shielding rear shell (4 b) is realized; the positioning bulge (5103) on the insulating medium (5) is clamped into the positioning groove (4201) at the front end of the metal shielding rear shell (4 b);
secondly, inserting the front end of the metal shielding rear shell (4 b) into the rear end part of the metal shielding front shell (4 a), and enabling the front end part of the metal shielding rear shell (4 b) to prop against a stop-in protruding part (4107) in the metal shielding front shell (4 a);
thirdly, fixing the metal shielding front shell (4 a) and the metal shielding rear shell (4 b) by welding an inward concave part (4108) on the metal shielding front shell (4 a);
fourthly, fixing the inner conductor (6) with the signal wire of the single-pair differential high-frequency cable (3) through crimping;
fifthly, inserting the inner conductor (6) into the insulating medium (5), enabling the front ends of the two finger-shaped contact spring arms of the head of the inner conductor (6) to be positioned behind the insulating guide horn mouth (5101) at the front end of the insulating medium (5), enabling the front ends of the two finger-shaped contact spring arms of the head of the inner conductor (6) to be axially positioned in the insulating medium observation window (5102) when being observed from the Z axis, enabling barbs (6102) on the inner conductor (6) to be clamped into stop holes (5106) on the insulating medium (5), realizing stopping on the X axis, enabling forward stop protrusions (6103) on the inner conductor (6) to abut against insulator stop steps (5107), and realizing forward stop in the assembly direction, and completing preliminary assembly; and sixthly, simultaneously fastening a cable fixing section (222) at the rear end of the metal shielding rear shell (4 b) on the single-pair differential high-frequency cable (3), and deforming the impedance matching section (221) to adjust characteristic impedance to finish assembly.
7. A method of assembling a connector device according to claim 6, wherein in the fifth step the inner conductor (6) is inserted into the insulating medium (5) and the inner conductor (6) is observed through the outer conductor observation window (4106) whether it is assembled in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311408306.6A CN117154455B (en) | 2023-10-27 | 2023-10-27 | Connector device and assembling method thereof |
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|---|---|---|---|
| CN202311408306.6A CN117154455B (en) | 2023-10-27 | 2023-10-27 | Connector device and assembling method thereof |
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| CN117154455A CN117154455A (en) | 2023-12-01 |
| CN117154455B true CN117154455B (en) | 2024-02-27 |
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| Publication number | Publication date |
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| CN117154455A (en) | 2023-12-01 |
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