CN114243342B - Connector capable of shortening signal transmission distance and improving high-frequency performance and preparation method thereof - Google Patents

Connector capable of shortening signal transmission distance and improving high-frequency performance and preparation method thereof Download PDF

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Publication number
CN114243342B
CN114243342B CN202111257714.7A CN202111257714A CN114243342B CN 114243342 B CN114243342 B CN 114243342B CN 202111257714 A CN202111257714 A CN 202111257714A CN 114243342 B CN114243342 B CN 114243342B
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signal
grounding
parts
insulating body
terminal
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CN114243342A (en
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樊真真
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Dongguan Ankuoxin Precision Electronics Co ltd
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Dongguan Ankuoxin Precision Electronics Co ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40Securing contact members in or to a base or case; Insulating of contact members
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646Details 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
    • H01R13/6461Means for preventing cross-talk
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646Details 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
    • H01R13/6473Impedance matching
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/652Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding   with earth pin, blade or socket
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/18Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing bases or cases for contact members

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The invention discloses a connector capable of shortening signal transmission distance and improving high-frequency performance and a preparation method thereof, wherein the connector comprises an insulating body, a first terminal group, a second terminal group, a bottom plug body and an enhanced shielding inner shell; through highly be H1 design for the height H2 that is less than ground connection contact portion with signal contact portion to shorten the transmission distance of signal on signal terminal, thereby reduce resonance crosstalk and impedance in the signal transmission process, and then reach high frequency performance, satisfy the requirement that high frequency passed through completely, and, through implanting enhancement mode shielding inner shell at insulator, on the one hand can effectively the overall structure intensity of whole product, avoid insulator to break easily, product life is longer, on the other hand, the annular metal layer can also play the effect of shielding external signal, avoid receiving the interference of external signal, further satisfy the requirement that high frequency passed through, bring convenience for the use.

Description

Connector capable of shortening signal transmission distance and improving high-frequency performance and preparation method thereof
Technical Field
The invention relates to the connector field technology, in particular to a connector capable of shortening signal transmission distance and improving high-frequency performance and a preparation method thereof.
Background
PCI-E (PCI-Express) is a common bus specification, which was originally advocated and promoted by Intel (also known as the previous 3 GIO), and its final design purpose is to replace the bus transmission interface inside the existing computer system, which includes not only the display interface but also various application interfaces such as CPU, PCI, HDD, network. Thus, the method can be used for solving the bottleneck problem of data transmission in the current system like Hyper-Transport, and is well prepared for the future improvement of the performance of peripheral products.
The prior PCI-E connector consists of an insulating body and a plurality of staggered signal terminals and grounding terminals which are arranged in the insulating body, wherein the insulating body is long, is easy to break, has weak structural strength, does not have a shielding function and is easy to be interfered by external signals, the shape, the size and the materials of the signal terminals and the grounding terminals are the same, the transmission distance of the signals on the signal terminals is long, the product is difficult to meet the requirement of high-frequency passing, the high-frequency performance is poor, and the use requirement cannot be met. Therefore, it is necessary to study a scheme to solve the above-mentioned problems.
Disclosure of Invention
In view of the above, the present invention aims at overcoming the drawbacks of the prior art, and its primary objective is to provide a connector capable of shortening the signal transmission distance and improving the high frequency performance and a method for manufacturing the same, which can effectively solve the problems of weak structural strength and poor high frequency performance of the existing connector.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a connector capable of shortening signal transmission distance and improving high-frequency performance comprises an insulating body, a first terminal group, a second terminal group, a bottom plug body and an enhanced shielding inner shell;
the insulation body is provided with a first insertion cavity and a second insertion cavity with upward openings, the bottom surface of the second insertion cavity is concavely provided with a plurality of signal terminal grooves and a plurality of grounding terminal grooves, the plurality of signal terminal grooves and the plurality of grounding terminal grooves penetrate through the bottom surface of the insulation body, and the signal terminal grooves and the grounding terminal grooves are separated from each other;
the first terminal group is arranged on the insulating body and is provided with a plurality of first contact parts and a plurality of first welding parts, the first contact parts are exposed in the first inserting cavity, and the first welding parts extend out of the insulating body;
the second terminal group consists of a plurality of signal terminals and a plurality of grounding terminals, the plurality of signal terminals and the plurality of grounding terminals are alternately arranged in parallel at intervals, the plurality of signal terminals are respectively inserted and fixed in corresponding signal terminal grooves, the plurality of grounding terminals are respectively inserted and fixed in corresponding grounding terminal grooves, each signal terminal is provided with a signal contact part, a signal fixing part and a signal welding part which are integrally connected, each grounding terminal is provided with a grounding contact part, a grounding fixing part and a grounding welding part which are integrally connected, the plurality of signal contact parts and the plurality of grounding contact parts are exposed in the second insertion cavity, the plurality of signal welding parts and the plurality of grounding welding parts extend out of the insulating body, and the height H1 of the signal contact part is smaller than the height H2 of the grounding contact part;
the bottom plug body is fixed at the bottom of the insulating body and comprises a bottom plate, a plurality of first filling parts and a plurality of second filling parts, wherein the first filling parts and the second filling parts extend upwards from the surface of the bottom plate, the bottom plate covers the bottom openings of the plurality of signal terminal grooves and the bottom openings of the plurality of grounding terminal grooves, the plurality of first filling parts are respectively embedded into the corresponding signal terminal grooves and are pressed against the corresponding signal fixing parts, and the plurality of second filling parts are respectively embedded into the corresponding grounding terminal grooves and are pressed against the corresponding grounding fixing parts;
the reinforced shielding inner shell is fixed in the insulating body in an insert molding manner and surrounds the first inserting cavity and the second inserting cavity, and comprises an annular metal layer and an annular carbon fiber layer which is completely coated on the inner side surface and the outer side surface of the annular metal layer.
As a preferable scheme, the surface of the bottom plate is extended with a plurality of hook parts, the hook parts are respectively positioned beside the inner sides of the corresponding filling parts, and the hook parts hook the inner side walls of the signal terminal grooves or the inner side walls of the grounding terminal grooves.
As a preferable scheme, the bottom surfaces of the two end surfaces of the insulating body are concavely provided with fixing grooves, a grounding plate is inserted and fixed in each fixing groove, and the grounding plate is in contact conduction with the annular metal layer.
As a preferable mode, the plurality of first welding parts are divided into two groups and extend out horizontally to the front and rear sides of the insulating body, respectively, and the plurality of signal welding parts and ground welding parts are divided into two groups and extend out horizontally to the front and rear sides of the insulating body, respectively.
As a preferable scheme, the annular metal layer is a stretching annular metal shell or is formed by welding steel sheets end to end.
A preparation method of a connector capable of shortening signal transmission distance and improving high-frequency performance comprises the following steps:
(1) Taking an annular metal layer, coating carbon fiber cloth on the inner side surface and the outer side surface of the annular metal layer, and then heating and curing to form a carbon fiber layer, thereby preparing the reinforced shielding inner shell;
(2) Placing the enhanced shielding inner shell in an injection mold to form an insulating body in an injection molding way, so that the enhanced shielding inner shell is completely embedded and molded and fixed in the insulating body;
(3) Stamping to form a first terminal group and a second terminal group, and arranging the first terminal group and the second terminal group on the insulating body;
(4) The bottom plug body is assembled on the insulating body from bottom to top, so that the first filling parts are respectively embedded into the corresponding signal terminal grooves and pressed against the corresponding signal fixing parts, and the second filling parts are respectively embedded into the corresponding grounding terminal grooves and pressed against the corresponding grounding fixing parts.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:
through highly be H1 design for the height H2 that is less than ground connection contact portion with signal contact portion to shorten the transmission distance of signal on signal terminal, thereby reduce resonance crosstalk and impedance in the signal transmission process, and then reach high frequency performance, satisfy the requirement that high frequency passed through completely, and, through implanting enhancement mode shielding inner shell at insulator, on the one hand can effectively the overall structure intensity of whole product, avoid insulator to break easily, product life is longer, on the other hand, the annular metal layer can also play the effect of shielding external signal, avoid receiving the interference of external signal, further satisfy the requirement that high frequency passed through, bring convenience for the use.
In order to more clearly illustrate the structural features and efficacy of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is an assembled perspective view of a preferred embodiment of the present invention;
FIG. 2 is an exploded view of a preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view of a preferred embodiment of the present invention;
FIG. 4 is a high frequency test plot of Insertion Loss (Insertion Loss) conditions for a preferred embodiment of the present invention;
FIG. 5 is a high frequency test plot of the reflection Loss (Return Loss) condition of a preferred embodiment of the invention.
The attached drawings are used for identifying and describing:
10. insulation body 11, first insertion cavity
12. Second insertion cavity 13, signal terminal groove
14. Ground terminal slot 20, first terminal set
21. First contact portion 22, first welded portion
30. Second terminal group 31, signal terminal
311. Signal contact portion 312 and signal fixing portion
313. Signal welding part 32 and ground terminal
321. Ground contact portion 322 and ground fixing portion
323. Grounding weld 40 and bottom plug
41. Bottom plate 42, first filling part
43. Second filling portion 44, hook portion
50. Enhanced shielding inner shell 51, annular metal layer
52. Annular carbon fiber layer 60, ground plate.
Detailed Description
Referring to fig. 1 to 3, a specific structure of a connector capable of shortening a signal transmission distance and improving high frequency performance according to a preferred embodiment of the present invention is shown, which includes an insulation body 10, a first terminal set 20, a second terminal set 30, a bottom plug body 40 and an enhanced shielding inner shell 50.
The insulating body 10 has a first insertion cavity 11 and a second insertion cavity 12 with upward openings, the bottom surface of the second insertion cavity 12 is concavely formed with a plurality of signal terminal slots 13 and a plurality of ground terminal slots 14, the plurality of signal terminal slots 13 and the plurality of ground terminal slots 14 penetrate to the bottom surface of the insulating body 10, and the signal terminal slots 13 and the ground terminal slots 14 are separated from each other.
The first terminal group 20 is disposed on the insulating body 10, the first terminal group 20 has a plurality of first contact portions 21 and a plurality of first soldering portions 22, the plurality of first contact portions 21 are exposed in the first insertion cavity 11, and the plurality of first soldering portions 22 extend out of the insulating body 10. In the present embodiment, the first terminal groups 20 are ground terminals, which are divided into front and rear rows, and the plurality of first solder portions 22 are divided into two groups and extend horizontally outward from the front and rear sides of the insulative housing 10, respectively.
The second terminal set 30 is composed of a plurality of signal terminals 31 and a plurality of grounding terminals 32, the plurality of signal terminals 31 and the plurality of grounding terminals 32 are alternately arranged side by side at intervals, the plurality of signal terminals 31 are respectively inserted and fixed in the corresponding signal terminal slots 13, the plurality of grounding terminals 32 are respectively inserted and fixed in the corresponding grounding terminal slots 14, each signal terminal 31 is provided with a signal contact part 311, a signal fixing part 312 and a signal welding part 313 which are integrally connected, each grounding terminal 32 is provided with a grounding contact part 321, a grounding fixing part 322 and a grounding welding part 323 which are integrally connected, the plurality of signal contact parts 311 and the plurality of grounding contact parts 321 are exposed in the second inserting cavity 12, the plurality of signal welding parts 313 and the plurality of grounding welding parts 323 extend out of the insulating body 10, the thickness of the signal terminal 31 is the same as that of the grounding terminal 32, the height H1 of the signal contact part 311 is smaller than the height H2 of the grounding contact part 321, so that the signal transmission distance is shortened on the signal terminal 31, and the resonance signal transmission performance is further reduced, and the high-frequency and the resonance performance of the signal transmission are achieved. In the present embodiment, the second terminal group 30 is divided into front and rear two rows each of which is composed of a plurality of signal terminals 31 and a plurality of ground terminals 32 alternately arranged side by side at intervals, and the plurality of signal welding portions 313 and ground welding portions 323 are divided into two groups and extend horizontally outward to the front and rear sides of the insulative housing 10, respectively; in addition, the signal terminal 31 is made of metallic copper to further reduce the resistance, and the ground terminal is made of stainless steel to ensure the plugging force and avoid easy plugging fatigue.
The bottom plug body 40 is fixed at the bottom of the insulating body 10, the bottom plug body 40 includes a bottom plate 41, and a plurality of first filling portions 42 and a plurality of second filling portions 43 extending upward from the surface of the bottom plate 41, the bottom plate 41 covers the bottom openings of the plurality of signal terminal slots 13 and the bottom openings of the plurality of ground terminal slots 14, the plurality of first filling portions 42 are respectively embedded in the corresponding signal terminal slots 13 and press against the corresponding signal fixing portions 312, and the plurality of second filling portions 43 are respectively embedded in the corresponding ground terminal slots 14 and press against the corresponding ground fixing portions 322. In the present embodiment, a plurality of hook portions 44 extend from the surface of the bottom plate 41, the plurality of hook portions 44 are respectively located beside the inner sides of the corresponding filling portions, and the plurality of hook portions 44 hook the inner side walls of the signal terminal slots 13 or the inner side walls of the ground terminal slots 14, so that the bottom plug body 40 and the insulating body 10 are firmly combined; in addition, the first filling parts 42 are multiple groups, each group of first filling parts 42 is composed of two first filling parts 42 to press each signal fixing part 312 in a targeted manner, so that air is better isolated, more effective enhancement of high-frequency performance is realized, and the height of the first filling parts 42 is higher than that of the second filling parts 43 to better press each signal fixing part 312; and, the bottom plug body 40 and the insulating body 10 are sealed and fixed by adhesive bonding, so as to isolate air to the maximum extent.
The enhanced shielding inner shell 50 is fixed in the insulating body 10 in an insert molding manner and surrounds the first inserting cavity 11 and the second inserting cavity 12, the enhanced shielding inner shell 50 comprises an annular metal layer 51 and an annular carbon fiber layer 52 which is completely coated on the inner side surface and the outer side surface of the annular metal layer 51, the annular carbon fiber layer 52 has high strength, the enhanced shielding inner shell 50 is implanted into the insulating body 10, on one hand, the integral structural strength of an integral product can be effectively achieved, the insulating body 10 is prevented from being broken easily, the service life of the product is longer, on the other hand, the annular metal layer 51 can also play a role in shielding external signals, the interference of the external signals is avoided, the requirement of high-frequency passing is further met, and meanwhile, the annular carbon fiber layer 52 is coated on the annular metal layer 51, and short circuits caused by contact between each terminal and the annular metal layer 51 are effectively controlled and avoided. In this embodiment, the annular metal layer 51 is a drawn annular metal shell or is formed by welding steel sheets end to end.
In this embodiment, the insulating body 10 is elongated, the bottom surfaces of the two end surfaces of the insulating body 10 are concavely provided with fixing grooves (not shown), each fixing groove is inserted and fixed with a grounding plate 60, and the grounding plate 60 is in contact conduction with the annular metal layer 51.
The invention also discloses a preparation method of the connector capable of shortening the signal transmission distance and improving the high-frequency performance, which comprises the following steps:
(1) The annular metal layer 51 is taken, carbon fiber cloth is coated on the inner side surface and the outer side surface of the annular metal layer 51, and then the annular carbon fiber layer 52 is formed by heating and solidifying, so that the reinforced shielding inner shell 50 is manufactured.
(2) The reinforced shielding inner shell 50 is placed in an injection mold to form the insulating body 10 by injection molding, so that the reinforced shielding inner shell 50 is completely embedded and fixed in the insulating body 10.
(3) The first terminal group 20 and the second terminal group 30 are press-molded, and the first terminal group 20 and the second terminal group 30 are both provided on the insulating body 10.
(4) The bottom plug body 40 is assembled onto the insulating body 10 from bottom to top, so that the first filling portions 42 are respectively embedded into the corresponding signal terminal slots 13 and pressed against the corresponding signal fixing portions 312, and the second filling portions 43 are respectively embedded into the corresponding ground terminal slots 14 and pressed against the corresponding ground fixing portions 322. Finally, the grounding plate 60 is inserted and fixed in the fixing groove and is in contact conduction with the annular metal layer 51.
In use, the product is fixed on the equipment main board, the first welding parts 22, the signal welding parts 313 and the grounding welding parts 323 are welded and conducted with the equipment main board, and then the electronic card is inserted into the first inserting cavity 11 and the second inserting cavity 12 to be contacted and conducted with the first contact parts 21, the signal contact parts 311 and the grounding contact parts 321.
The connectors prepared as described above were subjected to high frequency testing for Insertion Loss (Insertion Loss) and reflection Loss (Return Loss) conditions, as shown in fig. 4 and 5, which show the results as Pass.
The design focus of the invention is that: through highly be H1 design for the height H2 that is less than ground connection contact portion with signal contact portion to shorten the transmission distance of signal on signal terminal, thereby reduce resonance crosstalk and impedance in the signal transmission process, and then reach high frequency performance, satisfy the requirement that high frequency passed through completely, and, through implanting enhancement mode shielding inner shell at insulator, on the one hand can effectively the overall structure intensity of whole product, avoid insulator to break easily, product life is longer, on the other hand, the annular metal layer can also play the effect of shielding external signal, avoid receiving the interference of external signal, further satisfy the requirement that high frequency passed through, bring convenience for the use.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention are still within the scope of the technical solutions of the present invention.

Claims (6)

1. A connector capable of shortening a signal transmission distance and improving high-frequency performance, characterized in that: comprises an insulating body, a first terminal group, a second terminal group, a bottom plug body and an enhanced shielding inner shell;
the insulation body is provided with a first insertion cavity and a second insertion cavity with upward openings, the bottom surface of the second insertion cavity is concavely provided with a plurality of signal terminal grooves and a plurality of grounding terminal grooves, the plurality of signal terminal grooves and the plurality of grounding terminal grooves penetrate through the bottom surface of the insulation body, and the signal terminal grooves and the grounding terminal grooves are separated from each other;
the first terminal group is arranged on the insulating body and is provided with a plurality of first contact parts and a plurality of first welding parts, the first contact parts are exposed in the first inserting cavity, and the first welding parts extend out of the insulating body;
the second terminal group consists of a plurality of signal terminals and a plurality of grounding terminals, the plurality of signal terminals and the plurality of grounding terminals are alternately arranged in parallel at intervals, the plurality of signal terminals are respectively inserted and fixed in corresponding signal terminal grooves, the plurality of grounding terminals are respectively inserted and fixed in corresponding grounding terminal grooves, each signal terminal is provided with a signal contact part, a signal fixing part and a signal welding part which are integrally connected, each grounding terminal is provided with a grounding contact part, a grounding fixing part and a grounding welding part which are integrally connected, the plurality of signal contact parts and the plurality of grounding contact parts are exposed in the second insertion cavity, the plurality of signal welding parts and the plurality of grounding welding parts extend out of the insulating body, and the height H1 of the signal contact part is smaller than the height H2 of the grounding contact part;
the bottom plug body is fixed at the bottom of the insulating body and comprises a bottom plate, a plurality of first filling parts and a plurality of second filling parts, wherein the first filling parts and the second filling parts extend upwards from the surface of the bottom plate, the bottom plate covers the bottom openings of the plurality of signal terminal grooves and the bottom openings of the plurality of grounding terminal grooves, the plurality of first filling parts are respectively embedded into the corresponding signal terminal grooves and are pressed against the corresponding signal fixing parts, and the plurality of second filling parts are respectively embedded into the corresponding grounding terminal grooves and are pressed against the corresponding grounding fixing parts;
the reinforced shielding inner shell is fixed in the insulating body in an insert molding manner and surrounds the first inserting cavity and the second inserting cavity, and comprises an annular metal layer and an annular carbon fiber layer which is completely coated on the inner side surface and the outer side surface of the annular metal layer.
2. The connector for shortening a signal transmission distance to improve high frequency performance according to claim 1, wherein: the surface of the bottom plate is extended with a plurality of hook parts which are respectively positioned beside the inner sides of the corresponding filling parts and hook the inner side walls of the signal terminal grooves or the inner side walls of the grounding terminal grooves.
3. The connector for shortening a signal transmission distance to improve high frequency performance according to claim 1, wherein: the bottom surfaces of the two end surfaces of the insulating body are concavely provided with fixing grooves, a grounding sheet is inserted and fixed in each fixing groove, and the grounding sheet is in contact conduction with the annular metal layer.
4. The connector for shortening a signal transmission distance to improve high frequency performance according to claim 1, wherein: the plurality of first welding parts are divided into two groups and extend out of the front side and the rear side of the insulating body horizontally respectively, and the plurality of signal welding parts and the grounding welding parts are divided into two groups and extend out of the front side and the rear side of the insulating body horizontally respectively.
5. The connector for shortening a signal transmission distance to improve high frequency performance according to claim 1, wherein: the annular metal layer is a stretching annular metal shell or is formed by welding steel sheets end to end.
6. A method of manufacturing a connector for shortening a signal transmission distance and improving high frequency performance according to any one of claims 1 to 5, characterized in that: the method comprises the following steps:
(1) Taking an annular metal layer, coating carbon fiber cloth on the inner side surface and the outer side surface of the annular metal layer, and then heating and curing to form an annular carbon fiber layer, so as to prepare the enhanced shielding inner shell;
(2) Placing the enhanced shielding inner shell in an injection mold to perform injection molding to form an insulating body, so that the enhanced shielding inner shell is completely embedded and molded and fixed in the insulating body;
(3) Stamping to form a first terminal group and a second terminal group, and arranging the first terminal group and the second terminal group on the insulating body;
(4) The bottom plug body is assembled on the insulating body from bottom to top, so that the first filling parts are respectively embedded into the corresponding signal terminal grooves and pressed against the corresponding signal fixing parts, and the second filling parts are respectively embedded into the corresponding grounding terminal grooves and pressed against the corresponding grounding fixing parts.
CN202111257714.7A 2021-10-27 2021-10-27 Connector capable of shortening signal transmission distance and improving high-frequency performance and preparation method thereof Active CN114243342B (en)

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CN110718797A (en) * 2019-09-24 2020-01-21 番禺得意精密电子工业有限公司 Electrical connector
CN212412341U (en) * 2020-07-10 2021-01-26 东莞市联基电子实业有限公司 Digital audio-video transmission interface capable of improving characteristic impedance
CN212968141U (en) * 2020-08-28 2021-04-13 东莞承丰电子有限公司 Vertical female seat electric connector
CN213584451U (en) * 2020-11-26 2021-06-29 东莞市安阔欣精密电子有限公司 LVDS connector with good shielding effect

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