CN117199872A - Network connector with high frequency signal transmission compensation - Google Patents

Abstract

According to the network connector with high-frequency signal transmission compensation, the PIN needles of the connector are arranged to extend along the first direction, the PIN needles are arranged to be divided into two rows, the two rows of PIN needles are respectively the first PIN needles and the second PIN needles, the first PIN needles and the second PIN needles are arranged to be staggered in sequence along the second direction perpendicular to the first direction, and are arranged at intervals in sequence along the second direction, at least part of the first PIN needles and at least part of the second PIN needles are arranged at intervals along the third direction perpendicular to the first direction and the second direction, so that the whole interval size between the adjacent PIN needles of the bent needle assembly can be increased on the basis of not increasing the volume of the network connector to reduce crosstalk, and the interdigital capacitor is arranged on the circuit board to realize crosstalk supplement and crosstalk reduction.

Description

Network connector with high frequency signal transmission compensation

Technical Field

The invention relates to the technical field of networks, in particular to a network connector with high-frequency signal transmission compensation.

Background

With the development of sixth generation mobile communication technology, everything interconnection will develop leapfully; the sixth generation mobile communication technology has a higher improvement in transmission capability than the fifth generation mobile communication technology, and the network delay is also improved from millisecond level to microsecond level.

The reduction of network delay as a basis link for communications-integrated wiring presents a greater challenge for twisted pair, network modules, network patch panels, and other cables and connectors. The twisted pair is used as a differential pair, the crosstalk between the pair is relatively small, and interference of excessive crosstalk allowance is not needed on the cable. There is no crosstalk of the end devices (including switches, routers, computers, etc.) for the entire underlying link. The crosstalk of the whole basic link mainly comes from the connector, the connector comprises a shell, a module, a crystal head and a terminating cable, the module is arranged in the shell, the module comprises a circuit board, a clamping knife assembly and a bent needle assembly, the clamping knife assembly and the bent needle assembly are arranged on two opposite sides of the circuit board, the crystal head is partially inserted into a cavity part of the shell, which is close to the bent needle, and is electrically connected with the bent needle assembly, and a wire core of the terminating cable is untwisted to be connected with the clamping knife assembly. Currently, crosstalk in connectors is primarily due to crosstalk between the untwisted core portions of the terminated cables. The cable core part of the end connection cable connection clamping knife assembly can generate larger crosstalk after untwisting, if the cable core part is not reduced, the transmission performance of network connection can be seriously affected, so that the crosstalk of the part needs to be reduced by improving the structure of the network connector, the design of a plurality of PIN needles of a curved needle assembly of the network connector of a basic link is arranged in a row, the shapes are the same, and then the crosstalk caused by the untwisted wire core part of the end connection cable is reduced by increasing the distance between the adjacent PIN needles, but the design can lead the whole network connection volume to become larger, the miniaturization and standardization development of the network connector are not facilitated, and a better crosstalk compensation structure is not arranged on a circuit board of the network connector of the existing basic link to reduce the crosstalk caused by the untwisted wire core part of the end connection cable to a circuit on the circuit board.

Disclosure of Invention

In view of the above problems, the present invention provides a network connector with high-frequency signal transmission compensation, which can reduce crosstalk caused by a untwisted wire core portion of a termination cable of a card knife assembly connected with the network connector by changing the structure and arrangement of PIN needles of the PIN assembly on the basis of ensuring that the connector is not increased in volume, thereby realizing the beneficial effects of improving the transmission performance of the network connector, and aiming at different crosstalk values of the untwisted wire core portion of the termination cable for the network connector, arranging interdigital capacitors on a circuit board of the network connector, thereby realizing crosstalk compensation and further reducing crosstalk.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a network connector with high-frequency signal transmission compensation comprises a shell, a sealing cover, a module, a crystal head and a termination cable; the sealing cover is arranged on one side of the shell, and an inserting port is arranged on one side of the shell, which is away from the sealing cover; the module comprises a circuit board, and a clamping knife assembly and a curved needle assembly which are respectively arranged on two opposite sides of the circuit board; the crystal head at least partially penetrates through the plug-in port to be plugged into the shell, and is electrically connected with the curved needle assembly; the wire core of the termination cable extends out of one end of the termination cable and is connected with the clamping knife assembly in a untwisted mode;

The bent needle assembly comprises two rows of PIN needles, the number of each row of PIN needles is at least two, each PIN needle is in a bent shape, and bends and extends along a first direction from the sealing cover to the shell, the two rows of PIN needles are respectively a first PIN needle and a second PIN needle, the first PIN needles and the second PIN needles are sequentially staggered along a second direction and are sequentially arranged at intervals along the second direction, at least part of structures of the first PIN needles and at least part of structures of the second PIN needles are arranged at intervals along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other;

the circuit board is provided with a first surface for installing the clamping knife assembly and a second surface for installing the PIN needle, the first surface and the second surface are respectively provided with a clamping knife surface and a curved needle surface, interdigital capacitors are formed on the clamping knife surface and the curved needle surface, the interdigital capacitors on the clamping knife surface correspond to the clamping knife assembly, and the interdigital capacitors on the curved needle surface correspond to the curved needle assembly.

In one embodiment, a shell movable buckle for connecting the network panel is arranged on the outer side wall of the shell; the shell movable buckle comprises a shell elastic piece and a shell buckle block, wherein the shell elastic piece is provided with a first supporting part and a second supporting part which are connected, the first supporting part is arranged opposite to the shell, the second supporting part is connected with the shell and the first supporting part, the second supporting part is obliquely arranged relative to the first supporting part, and the shell buckle block is arranged at one end, far away from the second supporting part, of the first supporting part and is positioned at one side, far away from the shell, of the first supporting part.

In one embodiment, the PIN comprises a curved needle body, the curved needle body is provided with a first section, a second section and a bending part for connecting the first section and the second section, the first sections of the PIN are arranged at intervals in a third direction, and the second sections of the PIN and the second PIN are arranged at intervals in the third direction; the bending part is electrically connected with the crystal head; in each row of PIN needles, the curved needle bodies of the PIN needles are symmetrically arranged in pairs.

In one embodiment, the clamping knife assembly comprises clamping knives, wherein the clamping knives and the PIN needles are equal in number, and the clamping knives are respectively arranged in one-to-one correspondence with the PIN needles and the wire cores of the termination cables; each clamping knife extends along a first direction, and two ends of each clamping knife are respectively and electrically connected with the corresponding circuit board and the corresponding wire core of the termination cable; the clamping knives are uniformly divided into two rows along the third direction, and each row of clamping knives are sequentially arranged at intervals along the second direction; each clamping knife is obliquely arranged.

In one embodiment, a wire bonding post is arranged on one side of the sealing cover far away from the shell, the wire bonding posts are divided into two rows along a third direction, knife accommodating grooves and wire fixing grooves which are communicated are formed between each row of adjacent wire bonding posts, and the number of the wire fixing grooves and the number of the knife accommodating grooves are equal to that of the clamping knives and are arranged in a one-to-one correspondence manner; the clamping knife is positioned in the knife accommodating groove; and round hole parts which can clamp the wire cores of the termination cables are formed on the wire fixing grooves.

In one embodiment, each row of wire bonding posts is divided into thick wire bonding posts and thin wire bonding posts, the thick wire bonding posts and the thin wire bonding posts are sequentially staggered along the second direction, and one end of the thin wire bonding posts, which is far away from the sealing cover, is in an inverted V shape.

In one embodiment, the anti-dust device further comprises a dust cover with a detachable cover arranged on the sealing cover, wherein a threading hole, a threading channel communicated with the threading hole and two column placing cavities are respectively arranged on two opposite sides of the threading hole, and the threading channel is arranged on one side of the threading hole and between the two column placing cavities; one end of the wire inlet channel, which is far away from the wire through hole, penetrates through the dust cover; the two column placing cavities are arranged in one-to-one correspondence with two rows of wire bonding columns, and each row of wire bonding columns is positioned in the corresponding column placing cavity.

In one embodiment, the crystal head comprises a crystal head main body, a crystal head cable and a fork blade assembly, wherein the fork blade assembly comprises a fork blade, one end of the crystal head cable extends into the crystal head main body, a wire core of the crystal head cable extends out of one end of the crystal head cable, which is close to the crystal head main body, and is electrically connected with the fork blade assembly in a untwisted mode; the number of the wire cores of the crystal head cables and the number of the fork pieces are equal to the number of the PIN needles, and the fork pieces are respectively arranged in one-to-one correspondence with the wire cores of the crystal head cables and the PIN needles and are positioned between the PIN needles and the wire cores of the crystal head cables along a third direction; one end of each fork piece, which is close to the PIN needle, is abutted against the bending part of the PIN needle; one end of each fork piece, which is far away from the PIN needle, is connected with the wire core of the crystal head cable.

In one embodiment, the fork pieces are divided into two types, namely a long fork piece and a short fork piece, which are sequentially staggered along the second direction, and the long fork piece and the short fork piece are abutted against the end parts of the PIN needles and are flush.

In one embodiment, the PIN connector further comprises an insulation module which is arranged in the shell and is positioned on one side of the circuit board close to the plug-in port, the insulation module comprises a first insulation block, a second insulation block and a third insulation block which are sequentially spliced along a third direction, the first insulation block comprises a block main body spliced with the second insulation block, one side of the block main body facing the second insulation block is provided with a first installation groove corresponding to a second section of each first PIN, and the second section of each first PIN is penetrated through the first installation groove; the second insulation block is provided with second mounting grooves corresponding to the second PIN needles respectively on one side of the second insulation block facing the third insulation block, and the second sections of the second PIN needles penetrate through the second mounting grooves.

Compared with the prior art, the network connector with high-frequency signal transmission compensation has the following beneficial effects:

according to the invention, the PIN needles are bent and extend along the first direction from the card knife assembly to the curved needle assembly, the PIN needles arranged on the curved needle assembly are uniformly divided into two rows, the two rows of PIN needles are respectively a first PIN needle and a second PIN needle, the first PIN needles and the second PIN needles are sequentially staggered along the second direction perpendicular to the first direction and are sequentially arranged at intervals along the second direction, at least part of the first PIN needle structure and at least part of the second PIN needle structure are arranged at intervals along the third direction perpendicular to the first direction and the second direction, the overall interval size between the adjacent PIN needles of the curved needle assembly can be increased on the basis that the volume of the network connector is not increased, the miniaturization of the volume of the network connector is ensured, and the beneficial effects of reducing crosstalk caused by the cable untwisted core part of an end cable connected with the network connector and improving the transmission performance of the network connector are also achieved. Through the crosstalk numerical value according to the untwisted wire core part of the different end wiring cables, and the structure of the curved needle component, the curved needle surface of the curved needle component and the curved needle surface of the curved needle component are electrically connected with the circuit board, and the interdigital capacitor is arranged on the curved needle surface of the curved needle component, so that the crosstalk brought by the untwisted wire core part of the end wiring cables to the circuit of the circuit board is reduced, the beneficial effect of crosstalk compensation is achieved, and the arrangement of the interdigital capacitor on the circuit board is not increased, so that the beneficial effect of reducing the crosstalk and simultaneously not increasing the volume and the cost of the network connector is also achieved.

Drawings

The invention will be further described with reference to the drawings and examples.

Fig. 1 is a schematic overall perspective view of a network connector with high frequency signal transmission compensation according to an embodiment of the present invention;

FIG. 2 is an exploded view of the network connector shown in FIG. 1 with high frequency signal transmission compensation;

FIG. 3 is a schematic perspective view of a position of the housing of FIG. 2;

FIG. 4 is a schematic perspective view of another orientation of the housing shown in FIG. 3;

FIG. 5 is a schematic perspective view of the module shown in FIG. 1;

fig. 6 is a schematic perspective view of the PIN needle of fig. 5;

FIG. 7 is a schematic view of the structure of one row of PIN needles in FIG. 5;

FIG. 8 is a schematic view of the structure of the other row of PIN needles of FIG. 5;

FIG. 9 is a front view of the clamping knife of FIG. 5;

FIG. 10 is top and bottom views of the circuit board of FIG. 5 in one embodiment; a step of

FIG. 11 is top and bottom views of the circuit board of FIG. 5 in another embodiment;

FIG. 12 is a schematic perspective view of the closure of FIG. 2;

FIG. 13 is a top view of the closure shown in FIG. 12;

FIG. 14 is a schematic perspective view of the crystal head of FIG. 2;

FIG. 15 is a schematic perspective view of a fork blade assembly of the fork blade assembly of FIG. 14;

FIG. 16 is a schematic perspective view of an assembly of the crystal head cable of FIG. 14, the fork knife assembly of FIG. 15, and the looper assembly of FIG. 2;

FIG. 17 is a schematic perspective view of a position of the dust cap of FIG. 2;

FIG. 18 is a schematic perspective view of the dust cap of FIG. 17 in another orientation;

fig. 19 is a schematic perspective view of an assembly consisting of the bent needle assembly and the insulation module of fig. 2;

FIG. 20 is an exploded view of the insulation module of FIG. 19;

FIG. 21 is a schematic perspective view of a position of the first insulating block in FIG. 20;

fig. 22 is a schematic perspective view of an orientation of the second insulating block in fig. 20.

Reference numerals:

10. a housing; 11. an interface; 12. a shell movable buckle; 121. a shell spring; 122. a first support portion; 123. a second supporting part; 124. a shell snap block; 125. a shell buckle inclined plane;

20. a module; 21a, a first PIN; 21b, a second PIN; 211. a curved needle body; 2111. a first section; 2112. a second section; 2113. a bending part; 212. a limiting block;

22. clamping a knife; 221. wire clamping groove; 222. a guide section; 223. a card line segment;

23. a circuit board; 231. a first face; 232. a second face; 233. an interdigital capacitor;

30. A cover; 31. a wire bonding post; 32. wire fixing grooves; 321. a circular hole portion; 33. a knife accommodating groove; 34. a column fixing buckle; 341. column buckle inclined plane;

40. terminating the cable;

50. a crystal head; 51. a crystal head main body; 511. a plug-in part; 5111. a crystal head separation groove; 512. a pulling part; 52. a crystal head cable; 53. fork pieces; 54. the crystal head is buckled;

60. a dust cover; 61. a threading hole; 62. a wire inlet channel; 63. a column receiving cavity; 64. a partition plate; 65. a cover spring plate; 66. a cover movable buckle; 661. a cover buckle inclined plane;

70. an insulation module; 71. a first insulating block; 711. a block body; 7111. a first mounting groove; 7112. a first limit groove; 712. a side block; 7121. insulation block separation grooves; 713. a connecting rod; 72. a second insulating block; 721. a second mounting groove; 722. the second limit groove; 723. the first pressing needle limiting bulge; 73. a third insulating block; 731. the second pressing needle is limited and raised.

Detailed Description

The following description is of the preferred embodiments of the application, and is not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "connected to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.

Referring to fig. 1 and 2, a network connector with high frequency signal transmission compensation according to an embodiment of the invention includes a housing 10, a cover 30, a module 20, a crystal head 50, and a termination cable 40.

The sealing cover 30 is arranged on one side of the shell 10, and an inserting port 11 is arranged on one side of the shell 10, which faces away from the sealing cover 30; the module 20 includes a circuit board 23, and a card cutter assembly and a looper assembly mounted on opposite sides of the circuit board 23, respectively; the crystal head 50 is inserted into the shell 10 at least partially through the insertion port 11, and the crystal head 50 is positioned on one side of the circuit board 23 far away from the sealing cover 30 and is electrically connected with the bent needle assembly; the core of the end cable 40 extends out of one end of the end cable 40 and is untwisted to connect the clamping knife assembly so that the end cable 40 transmits signals through the clamping knife assembly to the circuit board 23, which circuit board 23 in turn transmits signals through the bent needle assembly to the crystal head 50.

The bent needle assembly comprises two rows of PIN needles, the number of each row of PIN needles is at least 2, each PIN needle is in a bent shape, and bends and extends along a first direction from a wire bonding column 31 shell to a shell 10, the two rows of PIN needles are respectively a first PIN needle 21a and a second PIN needle 21b, the first PIN needle 21a and the second PIN needle 21b are sequentially staggered along a second direction and are sequentially arranged at intervals along the second direction, at least part of the structure of the first PIN needle 21a and at least part of the structure of the second PIN needle 21b are arranged at intervals along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

According to the invention, the PIN needles are bent and extend along the first direction from the card knife assembly to the bent needle assembly, the PIN needles of the bent needle assembly are uniformly divided into two rows, the two rows of PIN needles are respectively the first PIN needle 21a and the second PIN needle 21b, the first PIN needle 21a and the second PIN needle 21b are sequentially staggered along the second direction perpendicular to the first direction and are sequentially arranged at intervals along the second direction, at least part of the first PIN needle 21a and at least part of the second PIN needle 21b are arranged at intervals along the third direction perpendicular to the first direction and the second direction, so that the overall interval size between adjacent PIN needles of the bent needle assembly is increased on the basis of ensuring that the overall volume of the network connector is not increased, the beneficial effects of reducing crosstalk generated between the end connection cable 40 and the wire untwisting core part of the card knife assembly, improving the transmission performance of the network connector are achieved, and the volume miniaturization and standardization of the network connector are ensured.

The circuit board 23 has a first surface 231 for installing a card knife assembly and a second surface 232 for installing a PIN needle, the first surface 231 and the second surface 232 are respectively provided with a card knife surface and a curved needle surface, the card knife surface and the curved needle surface are respectively provided with an interdigital capacitor 233, the interdigital capacitor 233 on the card knife surface is arranged corresponding to the card knife assembly, and the interdigital capacitor 233 on the curved needle surface is arranged corresponding to the curved needle assembly. The clamping knife surface and the curved needle surface are both composed of a lead and a pin.

The crosstalk of the channels of the connector also mainly comes from the crosstalk generated between the wire pairs of the circuit board 23, and the crosstalk of the wire pairs of the circuit board 23 is mainly caused by poor capacitive coupling between wires, which is difficult to solve crosstalk compensation on the existing link unless adding capacitive components to achieve the purpose of crosstalk compensation. However, if components are added as standard connectors, the difficulty of the production process is increased and the connector cannot be accommodated inside. In this solution, an interdigital capacitor 233 is cited, and the interdigital capacitor 233 can be designed to cancel crosstalk. By connecting the interdigital capacitors 233 between the signal lines in a strategic manner, they will couple to cancel crosstalk. The small size allows integration of compact capacitors near the cable terminals, and adjusting the number and spacing of fingers can adjust the compensation capacitance. Even at high frequencies where crosstalk is most severe, a very good crosstalk compensation effect can be exhibited.

Therefore, according to the crosstalk values of the wire cores of the different terminating cables 40 and according to the structure of the bent needle assembly and the structure of the clamping knife assembly, the corresponding interdigital capacitors 233 are arranged on the clamping knife surface of the circuit board 23 electrically connected with the bent needle assembly and the bent needle surface of the circuit board 23 electrically connected with the clamping knife assembly, so that the crosstalk caused by the wire pairs of the circuit board 23 can be reduced, and the crosstalk caused by the wire cores of the terminating cables 40 can be compensated. And the interdigital capacitor is arranged without adding components, so that the volume of the network connector is ensured not to be increased, and the manufacturing cost can be reduced.

In an embodiment, the plug interface of the housing 10 is preferably an RJ45 interface; the outer side wall of the housing 10 is provided with a housing movable buckle 12 for connecting the whole connector to the network panel, and the housing movable buckle 12 is matched with a plate fixing buckle on the network panel. The shell movable buckle 12 comprises a shell elastic piece 121 and a shell buckle block 124, the shell elastic piece 121 is provided with a first supporting portion 122 and a second supporting portion 123 which are connected, the first supporting portion 122 is arranged opposite to the shell 10, the second supporting portion 123 is connected with the shell 10 and the first supporting portion 122, the second supporting portion 123 is obliquely arranged relative to the first supporting portion 122, and the shell buckle block 124 is arranged on one end, far away from the second supporting portion 123, of the first supporting portion 122 and is located on one side, far away from the shell 10, of the first supporting portion 122. The side of the shell snap block 124 facing away from the housing 10 is provided with a shell snap ramp 125 for pushing against the panel fixation snap of the network panel. Through setting up shell fragment 121 and having first supporting part 122 and second supporting part 123 to set up second supporting part 123 and set up for first supporting part 122 slope, can make shell fragment 121 have very good elasticity, when can ensure that shell activity buckle 12 is pushed down, shell fragment 121 can be in a resilient state for a long time, can not lose elasticity for a long time, can be in closely, firm state for a long time with the installation of network panel.

In one embodiment, as shown in fig. 6, the PIN includes a curved needle body 211, where the curved needle body 211 has a first section 2111, a second section 2112, and a bent portion 2113 connecting the first section 2111 and the second section 2112, the first sections 2111 of all PIN are disposed at intervals in the third direction, and the second sections 2112 of the first PIN 21a and the second sections 2112 of the second PIN 21b are disposed at intervals in the third direction. The bending portion 2113 is electrically connected to the crystal head 50, and the bending portion is provided to facilitate the insertion and extraction of the crystal head and the contact with the PIN needle.

In each row of PIN needles, the curved needle bodies 211 of the PIN needles are arranged symmetrically in pairs. The PIN of the connection PIN needle of the clamping knife surface of the circuit board 23 has certain space symmetry, can reduce crosstalk caused by the clamping knife surface of the circuit board 23, and can effectively perform crosstalk compensation on crosstalk between the untwisted wire cores of the termination cable termination clamping knife assembly.

The number of PIN needles is preferably 8, so the number of PIN needles of each row is 4, as shown in fig. 8 and 9, the PIN needles of the first row are marked 1, 3, 5, 7, the PIN needles of the second row are marked 2, 4, 6, 8, wherein the curved needle body 211 of PIN needle 1 and the curved needle body 211 of PIN needle 5 are symmetrically arranged, and the curved needle body 211 of PIN needle 3 and the curved needle body 211 of PIN needle 7 are symmetrically arranged. The curved needle body 211 of the PIN needle 2 and the curved needle body 211 of the PIN needle 6 are symmetrically arranged, and the curved needle body 211 of the PIN needle 4 and the curved needle body 211 of the PIN needle 8 are symmetrically arranged.

In one embodiment, as shown in fig. 5, the card assembly includes a card cutter 22, where the number of card cutters 22 and PIN needles are equal, and the card cutter 22 is disposed in one-to-one correspondence with the PIN needles and the wire core of the termination cable 40, respectively. Each of the blades 22 extends in the first direction, and both ends of each of the blades 22 are electrically connected to the corresponding circuit board 23 and the core of the corresponding termination cable 40, respectively, so that the termination cable 40 transmits signals to the circuit board 23 through the blades 22.

The clamping knives 22 are equally divided into two rows along the third direction, and each row of clamping knives 22 are sequentially arranged at intervals along the second direction. Through setting up the card sword 22 of card sword subassembly and evenly dividing into two rows along the third direction interval, but not set up the card sword 22 of card sword subassembly and directly be one row, can further reduce the volume that the card sword subassembly occupy, but also can increase the whole interval of arranging of card sword 22 of card sword subassembly, help playing one step to reduce crosstalk, improve network connector's transmission performance to and reduce network connector's beneficial effect of volume.

Each clamping knife 22 is obliquely arranged, each row of clamping knives 22 is divided into two groups of clamping knives 22, and the two groups of clamping knives 22 are symmetrically arranged. This arrangement can reduce the space volume that the card knife assembly occupy on the one hand, and then reduce the volume of whole network connector, and on the other hand the card knife 22 of slope can have better fastening to the sinle silk of termination cable 40 for the sinle silk of termination cable 40 is difficult to drop from card knife 22.

As shown in fig. 9, each card cutter 22 is provided with a card slot 221, and the card slot 221 extends along the first direction and penetrates through one end of the card cutter 22 away from the circuit board 23. The core of the end cable 40 is clamped in the clamping slot 221 to connect the core of the end cable 40 with the clamping knife 22. The card slot 221 has a guide section 222 and a card line section 223 that are connected, the guide section 222 is located at an end of the card line section 223 away from the circuit board 23, and the width dimension of the guide section 222 gradually decreases toward the first direction from the looper assembly to the card knife assembly. The guiding section 222 is arranged to facilitate the core of the terminal cable 40 to be smoothly clamped into the clamping line section 223 of the clamping line groove 221, if the guiding section 222 is not arranged, a certain probability exists that the core of the terminal cable 40 is clamped into the clamping line section 223 of the clamping line groove 221, and the situation that the network connector is not enabled occurs.

In an embodiment, on the basis that the number of the clamping knives 22, the PIN needles and the wire cores of the termination cable 40 is 8, the clamping knife surface and the curved needle surface are provided with 8 PINs, the 8 PINs on the clamping knife surface are respectively marked as 1, 2, 3, 4, 5, 6, 7 and 8, and the 8 PINs on the curved needle surface are respectively marked as 1, 2, 3, 4, 5, 6, 7 and 8. The serial number of the wires connected with the set pins is the same as the serial number of the pins, for example, the guiding of the connection pins 3 is called as wires 3, one end of the wires connected with the pins is called as a near end, and the end far away from the pins is called as a far end. PINs of the card knife face are arranged according to arrangement conditions of the card knife 22, and PINs of the curved needle face are arranged according to arrangement of PIN needles. Referring to fig. 10, fig. 10 is a top and bottom view of a circuit board 23 in one embodiment, where it can be seen that the interdigitated capacitor 233 on the card edge of the curved edge has C2/C4/C5, where c2=35 guidewires 3 and wires 5 are interwoven proximally, c4=23 guidewires 2 and wires 3 are interwoven distally, and c5=25 guidewires 2 and wires 5 are interwoven proximally. The interdigitated capacitor 233 on the curved needle face of the curved needle face is designed with c8\c9\c10, where c8=13 refers to the proximal interleaving of conductor 1 and conductor 3, c9=68 refers to the proximal interleaving of conductor 6 and conductor 8, and c10=47 refers to the proximal interleaving of conductor 4 and conductor 7. The interleaving length of each pair of interleaving wires is inconsistent, that is, the interdigital capacitors 233 are different, and in the design scheme, capacitive coupling compensation is performed in a targeted manner according to the crosstalk magnitude of different wires and pins, so that the NEXT of the link of the whole network connector is higher than the standard. As can be seen from fig. 10, the interleaving length of the pair of the card face 35 and the interleaving length of the pair of the looper face 13 are larger, which means that the crosstalk generated between the pair of the card face 35 and the pair of the looper face 13 is larger, and the crosstalk generated between the pair of the card face 35 and the pair of the looper face 13 needs to be eliminated by increasing the interleaving length of the pair of the card face 35 and the interleaving length of the pair of the looper face 13.

Referring to fig. 11, fig. 11 is a top and bottom view of another embodiment of a circuit board 23, and it can be seen from fig. 11 that an interdigital capacitor 233 designed on a clamping surface of a curved surface has C1/C3, where c1=46 indicates that a wire 4 and a wire 6 are interwoven at a proximal end to provide an interwoven capacitor; c3 =56 guide wire 5 and guide wire 6 are interwoven at the distal end; correspondingly, the interdigital capacitor 233 designed on the curved needle surface of the curved needle surface has c6\c7, where c6=67 indicates that the conductive wire 6 and the conductive wire 7 are interwoven at the distal end, and c7=34 indicates that the conductive wire 3 and the conductive wire 4 are interwoven at the distal end. As can be seen from fig. 10, the interleaving length of the pair of the card face 46 and the interleaving length of the pair of the looper face 34 are larger, which means that the crosstalk generated between the pair of the card face 46 and the pair of the looper face 34 is larger, and the crosstalk generated between the pair of the card face 46 and the pair of the looper face 34 needs to be eliminated by increasing the interleaving length of the pair of the card face 46 and the interleaving length of the pair of the looper face 34.

In the present invention, the crosstalk compensation is performed using the interdigital capacitor 233 technique so that the NEXT margin can satisfy the transmission of the link. The size of the interdigital capacitor 233 also combines the self structures and distribution of the bent needle conductor and the conductor of the clamping knife 22 and the untwisting degree of the cable, so that targeted crosstalk compensation is performed. The interdigital capacitor 233 is particularly effective for transmission crosstalk compensation of high frequency signals.

In an embodiment, as shown in fig. 12 and 13, a wire bonding post 31 is disposed on one side of the cover 30 away from the housing 10, the wire bonding posts 31 are divided into two rows along the third direction, a knife accommodating groove 33 and a wire fixing groove 32 which are communicated are formed between each row of adjacent wire bonding posts 31, and the number of the wire fixing grooves 32 and the number of the knife accommodating grooves 33 are equal to that of the clamping knives 22 and are arranged in a one-to-one correspondence manner; round hole portions 321 for catching the core of the end-wire cable 40 before the core of the end-wire cable 40 is terminated to the clamping knives 22 are formed on each of the wire-fixing grooves 32; the knife accommodating groove 33 is obliquely arranged relative to the wire fixing groove 32 and matched with the clamping knife 22, and the clamping knife 22 is positioned in the knife accommodating groove 33. The core of the end cable 40 is first untwisted and fastened in the circular hole portion 321 of the wire fixing groove 32 before being fastened in the wire fixing groove 221 of the clamping knife 22.

The end of the wire clamping groove 221 away from the cover 30 has a V-shape, and the dimension gradually increases toward the direction away from the cover 30. This design allows the core of the terminating cable 40 to be smoothly guided into the circular hole portion 321.

Each row of wire bonding posts 31 is divided into two types of thick wire bonding posts 31 and thin wire bonding posts 31, the width of the thick wire bonding posts 31 is larger than that of the thin wire bonding posts, the thick wire bonding posts 31 and the thin wire bonding posts 31 are sequentially staggered along the second direction, wherein the thin wire bonding posts 31 are used for cutting the twisted pair wire cores of the open-end wire bonding cable 40, specifically, one end of the thin wire bonding posts 31, far away from the sealing cover 30, is in an inverted V shape, and the size of the thin wire bonding posts is gradually reduced towards the direction far away from the sealing cover 30. Through the thin wire-bonding column 31 of design, the one end of keeping away from closing cap 30 is the setting of reverse V type, can make thin wire-bonding column 31 keep away from the one end of closing cap 30 and be the sword form, can direct guide the twisted pair core of cutting the cable when wire-bonding column 31 carries out the card line to the sinle silk of terminating cable 40, reduces the link of opening the sinle silk of terminating cable 40, still can keep the twisted pair structure of sinle silk of terminating cable 40, when improving the installation effectiveness of terminating cable 40, can also guarantee the performance of terminating cable 40.

As shown in fig. 14, the crystal head main body 51 includes a socket 511, a pulling part 512 connected to the socket 511, and a sheet-like crystal head clip 54 provided on the socket 511; the plug-in part 511 is inserted into the shell 10 through the plug-in port 11, the plug-in part 511 is provided with crystal head separation grooves 50 into which the bending parts 2113 of the PIN needles are inserted, the number of the crystal head separation grooves 50 is equal to that of the fork pieces 53, the fork pieces 53 are arranged in a one-to-one correspondence manner, and the crystal head separation grooves 50 are positioned in the crystal head separation grooves 53; one end of the crystal head buckle 54 is connected with the plug-in part 511, and the other end extends obliquely toward the direction from the plug-in part 511 to the pulling part 512 and toward the direction away from the crystal head body 51. The arrangement of the crystal head buckle 54 ensures that the crystal head buckle 54 can be clamped in the shell 10 to realize the fastening connection with the shell 10 when the plug-in part 511 of the crystal head 50 is inserted into the plug-in port 11 of the shell 10, thereby ensuring that the fork piece 53 of the crystal head 50 can be tightly contacted with the bending part 2113 of the PIN needle and the release is not easy to occur.

In one embodiment, as shown in fig. 17 and 18, the network connector further includes a dust cover 60 detachably mounted on the cover 30, wherein a threading hole 61, a wire inlet channel 62 communicating with the threading hole 61, and two post placement cavities 63 respectively located at two opposite sides of the threading hole 61 are provided in the dust cover 60, and the wire inlet channel 62 is located at one side of the threading hole 61 and located between the two post placement cavities 63; one end of the wire inlet channel 62, which is far away from the wire inlet hole 61, penetrates through the dust cover 60; the two column placing cavities 63 are arranged in one-to-one correspondence with the two rows of wire bonding columns 31, and each row of wire bonding columns 31 are positioned in the corresponding column placing cavity 63; the threading hole 61 and the thread-in passage 62 are separated from the column housing chamber 63 by a partition plate 64. The dust cover 60 is arranged, so that the wire bonding post 31 can be sealed in the post placement cavity 63, and the dust box can be moisture-proof to the clamping knife 22 and the wire core part of the termination cable 40, which is connected with the clamping knife 22, so that the clamping knife 22 and the wire core part of the termination cable 40, which is connected with the clamping knife 22, are protected. On the other hand, the device can play a role in fixing the cable. The arrangement of the threading hole 61 and the wire inlet channel 62 on the dust cover 60 can avoid that the untwisted part of the cable can not obstruct the dust cover 60 to be covered on the sealing cover 30. When the dust cover 60 is to be covered on the cover 30, the untwisted portion of the cable is first passed through the wire inlet channel 62 and into the wire through hole 61, and then the dust cover 60 is covered on the cover 30.

The dust cap 60 is detachably connected to the cover 30 by means of a snap fit. Specifically, a cover elastic sheet 65 is arranged on two opposite sides of the dust cover 60, the cover elastic sheet 65 is arranged close to the column placing cavity 63, a block-shaped cover movable buckle 66 is arranged on one side of the cover elastic sheet 65 facing the column placing cavity 63, a block-shaped column fixing buckle 34 matched with the cover movable buckle 66 and buckled with the wire bonding column 31 corresponding to the cover movable buckle 66 is formed on the wire bonding column 31, and the cover movable buckle 66 is positioned on one side of the column fixing buckle 34 close to the shell 10; the cover movable buckle 66 is formed with a cover buckle inclined surface 661 on a side far away from the cover elastic sheet 65, the cover buckle inclined surface 661 is obliquely arranged towards the direction from the column placing cavity 63 to the threading hole 61 and towards the direction from the cover 30 to the dust cover 60, and the column fixing buckle 34 is formed with a column buckle inclined surface 341 matched with the cover buckle inclined surface 661. When the dust cap 60 is to be removed from the cover 30, the cover movable buckle 66 is separated from the column fixing buckle 34 by pressing the end of each cover elastic piece 65, which is far away from the housing 10, in a direction approaching the threading hole 61, and the buckling relationship between the cover movable buckle 66 and the column fixing buckle 34 is released, and then the cover 30 on the dust cap 60 can be checked down. When the dust cover 60 is to be mounted on the cover 30, the dust cover 60 is firstly placed on one side of the cover 30 away from the shell 10, the two rows of wire bonding posts 31 respectively correspond to the two mounting cavities, then move towards the wire bonding posts 31, the wire bonding posts 31 enter the post mounting cavities 63, in the process that the wire bonding posts 31 enter the post mounting cavities 63, when the cover buckle inclined surface 661 of the cover movable buckle 66 abuts against the post buckle inclined surface 341 of the post fixed buckle 34, the post fixed buckle 34 pushes the cover elastic piece 65 to push the cover movable buckle 66 to move towards the direction away from the post fixed buckle 34 through the post buckle inclined surface 341, so that the post fixed buckle 34 cannot block the movement of the dust cover 60, and when the cover movable buckle 66 completely moves to one side of the post fixed buckle 34 close to the cover 30, the cover elastic piece 65 is reversely buckled to the original position along the direction of the cover elastic piece 65 to the wire bonding holes 61 under the action of the elastic restoring force of the cover elastic piece 65, at the moment, the dust cover 60 moves to the original position, and the cover movable buckle 66 and the post fixed buckle 34 are buckled with the post fixed buckle 34, so that the dust cover 60 and the dust cover 30 are in a rebound connection.

In one embodiment, as shown in fig. 14, the crystal head 50 includes a crystal head main body 51, a crystal head cable 52, and a fork blade assembly including a fork piece 53, one end of the crystal head cable 52 extends into the crystal head main body 51, a wire core of the crystal head cable 52 extends out of one end of the crystal head cable 52 near the crystal head main body 51, and is electrically connected with the fork blade assembly by untwisting; the number of the wire cores of the crystal head cable 52 and the number of the fork pieces 53 are equal to that of the PIN needles, the fork pieces 53 are respectively arranged in one-to-one correspondence with the second wire cores 521 and the PIN needles, the fork pieces 53 extend along the third direction and are positioned between the PIN needles and the wire cores of the crystal head cable 52 along the third direction, and one end, close to the PIN needles, of each fork piece 53 is abutted against the bending part 2113 of the PIN needle; one end of each fork piece 53, which is far away from the PIN needle, is connected to the core of the crystal head cable 52.

As shown in fig. 15 and 16, the prongs 53 are divided into two types, namely, long prongs 53 and short prongs 53, which are staggered in order along the second direction, and the ends of the long prongs 53 and short prongs 53 abutting against the PIN are flush. The arrangement can enable the wire cores of the connecting fork pieces 53 of the crystal head cable 52 to be divided into two rows along the third direction, and the two rows of wire cores of the crystal head cable 52 can be sequentially staggered along the second direction, so that crosstalk caused by wire core untwisting of the crystal head cable 52 can be reduced, and further signal transmission performance of the whole network connector is improved.

In an embodiment, the network connector further includes an insulation module 70 disposed in the housing 10 and located on a side of the circuit board 23 near the socket 11, as shown in fig. 19 to 22, the insulation module 70 includes a first insulation block 71, a second insulation block 72, and a third insulation block 73 sequentially spliced in the third direction, the first insulation block 71 includes a block body 711 spliced with the second insulation block 72, a first mounting groove 7111 is respectively disposed on a side of the block body 711 facing the second insulation block 72 corresponding to the second section 2112 of each first PIN 21a, and the second section 2112 of the first PIN 21a penetrates through the first mounting groove 7111 and is sealed in the first mounting groove 7111 by the second insulation block 72; the second insulating block 72 has a second mounting groove 721 corresponding to each second PIN 21b on a side facing the third insulating block 73, and the second section 2112 of the second PIN 21b is inserted into the second mounting groove 721 and sealed in the second mounting groove 721 by the third insulating block 73.

The arrangement of the insulation module 70 can isolate the second section 2112 of each PIN, can further assist in reducing crosstalk generated between the cores of the end connection cable 40, and splice the first insulation block 71, the second insulation block 72 and the third insulation block 73 in sequence along the third direction, so that the first end of the first PIN 21a and the second end of the second PIN 21b are convenient to install in the insulation module 70.

Preferably, the first insulating block 71 and the second insulating block 72 and the third insulating block 73 are detachably connected by means of a snap.

Further, the first insulating block 71 further includes a side block 712 located at a side of the block main body 711 away from the circuit board 23, and two connecting rods 713, wherein one end of each connecting rod 713 is connected to the block main body 711, the other end is respectively connected to two ends of the side block 712, the first sections 2111 of the side block 712 corresponding to each PIN are respectively provided with an insulating block separating groove 7121, and the first sections 2111 of the PIN are located in the insulating block separating grooves 7121. The provision of the insulating block separation slots 7121 may separate the first segments 2111 of each PIN, helping to further reduce cross talk between PIN needles.

Preferably, the second section 2112 of each PIN is provided with a stopper 212, one side of each first mounting groove 7111 is formed with a first stopper groove 7112 communicating with the first mounting groove 7111, the stopper 212 on the first PIN 21a is located in the first stopper groove 7112, one side of each second mounting groove 721 is formed with a second stopper groove 722 communicating with the second mounting groove 721, and the stopper 212 of the second PIN 21b is located in the second stopper groove 722. The cooperation setting of stopper 212 and first spacing groove 7112 of first PIN needle 21a and the cooperation setting of stopper 212 and second spacing groove 722 of second PIN needle 21b can restrict the PIN needle and remove along first direction, and then can make difficult emergence break away from between PIN needle and the circuit board 23, have guaranteed that PIN needle and circuit board 23 can realize fine electric connection.

Preferably, a side of the second insulating block 72 facing the first insulating block 71 is provided with a first PIN pressing limiting protrusion 723 corresponding to each first mounting groove 7111, and the first PIN pressing limiting protrusion 723 is located in the first mounting groove 7111 and presses against the PIN. The first PIN pressing limiting block 212 can be used for fastening a PIN on one hand, and can be used for limiting the installation of the second insulating block 72 on the first insulating block 71 on the other hand. Similarly, a second PIN pressing limiting protrusion 731 is disposed on a side of the third insulating block 73 facing the second insulating block 72 and corresponding to each second mounting groove 721, and the second PIN pressing limiting protrusion 731 is located in the second mounting groove 721 and presses on the PIN.

The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.

Claims (10)

1. The network connector with high-frequency signal transmission compensation is characterized by comprising a shell, a sealing cover, a module, a crystal head and a termination cable; the sealing cover is arranged on one side of the shell, and an inserting port is arranged on one side of the shell, which is away from the sealing cover; the module comprises a circuit board, and a clamping knife assembly and a curved needle assembly which are respectively arranged on two opposite sides of the circuit board; the crystal head at least partially penetrates through the plug-in port to be plugged into the shell, and is electrically connected with the curved needle assembly; the wire core of the termination cable extends out of one end of the termination cable and is connected with the clamping knife assembly in a untwisted mode;

The bent needle assembly comprises two rows of PIN needles, the number of each row of PIN needles is at least two, each PIN needle is in a bent shape, and bends and extends along a first direction from the sealing cover to the shell, the two rows of PIN needles are respectively a first PIN needle and a second PIN needle, the first PIN needles and the second PIN needles are sequentially staggered along a second direction and are sequentially arranged at intervals along the second direction, at least part of structures of the first PIN needles and at least part of structures of the second PIN needles are arranged at intervals along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other;

the circuit board is provided with a first surface for installing the clamping knife assembly and a second surface for installing the PIN needle, the first surface and the second surface are respectively provided with a clamping knife surface and a curved needle surface, interdigital capacitors are formed on the clamping knife surface and the curved needle surface, the interdigital capacitors on the clamping knife surface correspond to the clamping knife assembly, and the interdigital capacitors on the curved needle surface correspond to the curved needle assembly.

2. The network connector with high frequency signal transmission compensation according to claim 1, wherein a shell movable buckle for connecting a network panel is provided on an outer side wall of the shell; the shell movable buckle comprises a shell elastic piece and a shell buckle block, wherein the shell elastic piece is provided with a first supporting part and a second supporting part which are connected, the first supporting part is arranged opposite to the shell, the second supporting part is connected with the shell and the first supporting part, the second supporting part is obliquely arranged relative to the first supporting part, and the shell buckle block is arranged at one end, far away from the second supporting part, of the first supporting part and is positioned at one side, far away from the shell, of the first supporting part.

3. The network connector with high frequency signal transmission compensation of claim 1, wherein the PIN comprises a bent PIN body having a first section, a second section, and a bent portion connecting the first section and the second section, all the first sections of the PIN being disposed at an interval in a third direction, the second section of the PIN being disposed at an interval in the third direction; the bending part is electrically connected with the crystal head; in each row of PIN needles, the curved needle bodies of the PIN needles are symmetrically arranged in pairs.

4. The network connector with high frequency signal transmission compensation according to claim 3, wherein the card knife assembly comprises card knives, the number of the card knives and the PIN needles are equal, and the card knives are respectively arranged in one-to-one correspondence with the PIN needles and the wire cores of the termination cables; each clamping knife extends along a first direction, and two ends of each clamping knife are respectively and electrically connected with the corresponding circuit board and the corresponding wire core of the termination cable; the clamping knives are uniformly divided into two rows along the third direction, and each row of clamping knives are sequentially arranged at intervals along the second direction; each clamping knife is obliquely arranged.

5. The network connector with high-frequency signal transmission compensation according to claim 4, wherein a wire bonding post is arranged on one side of the sealing cover far away from the shell, the wire bonding posts are divided into two rows along a third direction, a knife accommodating groove and a wire fixing groove which are communicated are formed between each row of adjacent wire bonding posts, and the wire fixing groove and the knife accommodating groove are equal in number to the clamping knives and are arranged in a one-to-one correspondence manner; the clamping knife is positioned in the knife accommodating groove; and round hole parts which can clamp the wire cores of the termination cables are formed on the wire fixing grooves.

6. The network connector with high-frequency signal transmission compensation according to claim 5, wherein each row of the wire studs is divided into two kinds of thick wire studs and thin wire studs, the thick wire studs and the thin wire studs are sequentially staggered along the second direction, and one end of the thin wire studs, which is far away from the sealing cover, is inverted-V-shaped.

7. The network connector with high-frequency signal transmission compensation according to claim 4, further comprising a dust cover detachably covered on the sealing cover, wherein a threading hole in the dust cover, a wire inlet channel communicated with the threading hole and two post placement cavities respectively positioned at two opposite sides of the threading hole, wherein the wire inlet channel is positioned at one side of the threading hole and positioned between the two post placement cavities; one end of the wire inlet channel, which is far away from the wire through hole, penetrates through the dust cover; the two column placing cavities are arranged in one-to-one correspondence with two rows of wire bonding columns, and each row of wire bonding columns is positioned in the corresponding column placing cavity.

8. A network connector with high frequency signal transmission compensation according to claim 3, wherein the crystal head comprises a crystal head main body, a crystal head cable and a fork blade assembly, the fork blade assembly comprises a fork blade, one end of the crystal head cable extends into the crystal head main body, a wire core of the crystal head cable extends out of one end of the crystal head cable close to the crystal head main body, and the fork blade assembly is electrically connected in a untwisted mode; the number of the wire cores of the crystal head cables and the number of the fork pieces are equal to the number of the PIN needles, and the fork pieces are respectively arranged in one-to-one correspondence with the wire cores of the crystal head cables and the PIN needles and are positioned between the PIN needles and the wire cores of the crystal head cables along a third direction; one end of each fork piece, which is close to the PIN needle, is abutted against the bending part of the PIN needle; one end of each fork piece, which is far away from the PIN needle, is connected with the wire core of the crystal head cable.

9. The network connector with high-frequency signal transmission compensation according to claim 8, wherein the fork pieces are divided into a long fork piece and a short fork piece, the long fork piece and the short fork piece are sequentially staggered along the second direction, and the long fork piece and the short fork piece are flush against the end parts of the PIN needles.

10. The network connector with high-frequency signal transmission compensation according to claim 3, further comprising an insulation module arranged in the housing and positioned at one side of the circuit board close to the plug-in port, wherein the insulation module comprises a first insulation block, a second insulation block and a third insulation block which are sequentially spliced along a third direction, the first insulation block comprises a block main body spliced with the second insulation block, a side of the block main body facing the second insulation block is respectively provided with a first mounting groove corresponding to a second section of each first PIN, and the second section of each first PIN penetrates through the first mounting groove; the second insulation block is provided with second mounting grooves corresponding to the second PIN needles respectively on one side of the second insulation block facing the third insulation block, and the second sections of the second PIN needles penetrate through the second mounting grooves.