CN114498124B

CN114498124B - Backboard connector socket

Info

Publication number: CN114498124B
Application number: CN202210086394.1A
Authority: CN
Inventors: 屈峰成
Original assignee: Shenzhen West Point Precision Technology Co ltd
Current assignee: Shenzhen West Point Precision Technology Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2024-05-24
Anticipated expiration: 2042-01-25
Also published as: CN114498124A

Abstract

The application provides a back plate connector socket which comprises a plurality of wafer units, a plurality of connecting fish eyes and a protective sleeve. The wafer units are arranged side by side along the first direction, each wafer unit is provided with a mounting end, the mounting end of each wafer unit is fixedly connected with a plurality of connecting fish eyes, and each connecting fish eye is at least partially protruded out of the mounting end of the corresponding wafer unit. The protective sleeve is fixedly arranged at the mounting end of the wafer unit, the connecting fish eyes on each wafer unit are penetrated through the protective sleeve, a metal coating is arranged on the surface of one side of the protective sleeve, which is close to the mounting end, and the surface of one side of the protective sleeve, which is far away from the mounting end, is insulated. The part of the connecting fish eyes are not contacted with the metal coating to transmit high-speed signals, and the part of the connecting fish eyes are electrically connected with each other through the metal coating to realize common ground interconnection of the part of the connecting fish eyes at the position contacted with the metal coating, so that crosstalk and resonance between the connecting fish eyes for transmitting the high-speed signals are prevented.

Description

Backboard connector socket

Technical Field

The present application relates to the field of connectors, and in particular, to a back board connector socket.

Background

The backplane connector jacks are used to transmit high-speed signals and there is a need to minimize cross-talk between differential signals. Typically, the backplane connector socket has a plurality of wafer units arranged side by side, and each wafer unit has a plurality of connection fish eyes extending therefrom to form a plurality of connectors for connecting to connected devices, wherein the connection fish eyes are used for high-speed signal transmission or for grounding shielding to ensure a particularly good data transmission capability of the backplane connector socket. Because a plurality of connection fish eyes are arranged at different positions of the wafer in different angles and in the same form of a plurality of first grounding fish eyes and a plurality of second grounding fish eyes, crosstalk is easy to occur among the connection fish eyes in the use process due to the fact that the connection fish eyes are large in number and dense in distribution, and the effect of data transmission is affected.

Disclosure of Invention

In view of the above, the present application provides a back board connector socket, which can solve the problem that in the related art, since a plurality of connection fish eyes extending from a plurality of wafer units of the back board connector socket are numerous and densely distributed, crosstalk is easy to occur between the connection fish eyes during use, and the data transmission effect of the back board connector socket is affected.

The application provides a back plate connector socket which comprises a plurality of wafer units, a plurality of connecting fish eyes and a protective sleeve. The wafer units are arranged side by side along a first direction, and each wafer unit is provided with a mounting end; the mounting end of each wafer unit is fixedly connected with a plurality of connecting fish eyes, and each connecting fish eye at least partially protrudes out of the corresponding mounting end of the wafer unit; the protective sleeve is fixedly arranged at the mounting end of the wafer unit, a metal coating is arranged on one side surface of the protective sleeve, which is close to the mounting end, and one side surface of the protective sleeve, which is far away from the mounting end, is insulated; the connecting fish eyes on each wafer unit penetrate through the protective sleeve and protrude from the surface of one side of the protective sleeve, which is far away from the mounting end, part of the connecting fish eyes are electrically connected with each other through the metal coating, and the other part of the connecting fish eyes are not contacted with the metal coating.

According to the back plate connector socket, the protective sleeve is fixed at the mounting end of the wafer unit, the metal coating is arranged on one side surface of the mounting end of the protective sleeve, and part of the connecting fish eyes penetrate through the protective sleeve so as to realize common ground interconnection of the part of the connecting fish eyes at the position contacted with the protective sleeve. In one aspect, the protective sleeve has a metal coating on a surface of the protective sleeve near the mounting end, so that part of the connecting fish eyes can be commonly interconnected at a position contacted by the protective sleeve, and further, the data transmission performance of the backboard connector socket is improved. On the other hand, the connecting fish eyes are arranged on the protective sleeve in a penetrating way, so that the stability of the connecting fish eyes in the back plate connector socket is improved to a certain extent, the connecting fish eyes are not easy to damage, and the possibility of crosstalk between the connecting fish eyes is reduced.

In some embodiments, each of the wafer units includes a first half-wafer and a second half-wafer connected to each other; a plurality of connecting fish eyes with the same quantity are fixedly connected to each first half wafer and each second half wafer; in any one of the wafer units, the plurality of grounding fish eyes on the first half wafer and the plurality of grounding fish eyes on the second half wafer are in one-to-one correspondence and are arranged opposite to each other so as to form a plurality of pairs of connecting fish eyes which are arranged at intervals in the second direction; wherein the second direction is perpendicular to the first direction.

In some embodiments, a plurality of first signal lines spaced from each other and parallel to each other are disposed on each of the first half-chips, and a plurality of second signal lines spaced from each other and parallel to each other are disposed on each of the second half-chips; in any of the wafer units, the first signal lines and the second signal lines are equal in number and correspond one to one and are arranged opposite to each other to form a plurality of differential signal line pairs.

In some embodiments, the connecting fisheye comprises a plurality of signal fisheyes; one end of each first signal wire close to the protective sleeve and one end of each second signal wire close to the protective sleeve are connected with a signal fish eye; in any of the wafer units, the signal fish eyes on the first signal line and the signal fish eyes on the second signal line are disposed opposite to each other in the first direction to form a pair of signal fish eye pairs.

In some embodiments, the first half-chip is embedded with a first metal shielding sheet, and the connecting fisheye further includes a plurality of first grounding fisheye and a plurality of second grounding fisheye electrically connected through the metal coating; a plurality of first grounding fish eyes and a plurality of second grounding fish eyes are convexly arranged at one end of each first metal shielding sheet, which is close to the protective sleeve; and one first grounding fish eye is arranged between every two adjacent second grounding fish eyes on the same first half wafer along the second direction.

In some embodiments, the second half-wafer is embedded with a second metal shielding sheet, and the connecting fisheye further includes a plurality of third grounding fisheye and a plurality of fourth grounding fisheye that can be electrically connected through the metal coating; a plurality of third grounding fish eyes and a plurality of fourth grounding fish eyes are convexly arranged at one end of each second metal shielding sheet, which is close to the protective sleeve; and along the second direction, one third grounding fish eye is arranged between every two adjacent fourth grounding fish eyes on the same second half wafer.

In some embodiments, the projections of the first grounding fish eyes and the third grounding fish eyes on the first plane are spaced and staggered; wherein the first plane is parallel to the first direction and parallel to the second direction.

In some embodiments, the plurality of first ground fish eyes on adjacent first and second half wafers are collinear at an end of the protective sleeve remote from the first half wafer and the plurality of third ground fish eyes are collinear at an end of the protective sleeve remote from the third half wafer.

In some embodiments, the protective sleeve is further provided with a plurality of first grounding holes spaced from each other; each first grounding hole is internally provided with a first grounding fish eye or a third grounding fish eye in a penetrating way.

In some embodiments, a plurality of second grounding holes are further formed on each protective sleeve at intervals; each second grounding hole is internally provided with a second grounding fish eye or a fourth grounding fish eye in a penetrating way.

In some embodiments, the protective sleeve is provided with a plurality of differential holes which are arranged at intervals; two signal fish eyes are arranged in each differential hole in a penetrating way.

In some embodiments, at least four first grounding holes are arranged around each differential hole; at least three second grounding holes are arranged around each differential hole.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

FIG. 1 is a block diagram of a back panel connector receptacle with a protective cover removed in accordance with an embodiment of the present application;

FIG. 2 is a side view of a backplane connector receptacle according to one embodiment of the application;

FIG. 3 is a block diagram of a first wafer half of a backplane connector receptacle according to one embodiment of the application;

FIG. 4 is a block diagram of a second wafer half of a backplane connector receptacle according to one embodiment of the application;

FIG. 5 is a block diagram of a back plane connector receptacle according to an embodiment of the present application after the first half and the second half of the wafer are mated;

FIG. 6 is a bottom view of a back plate connector receptacle according to an embodiment of the present application after the first and second half dies are mated;

FIG. 7 is a bottom view of a back plate connector receptacle according to an embodiment of the present application;

Fig. 8 is a block diagram of a protective sleeve of a back panel connector receptacle according to an embodiment of the present application.

Reference numerals in the specific embodiments are as follows:

wafer unit 1, first half wafer 11, first signal line 111, second half wafer 12, second signal line 121;

The connecting fish eyes 2, the first grounding fish eyes 21, the second grounding fish eyes 22, the third grounding fish eyes 23, the fourth grounding fish eyes 24 and the signal fish eyes 25;

The protective sleeve 4, the first grounding hole 41, the second grounding hole 42 and the differential hole 43.

Detailed Description

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; the connection can also be mechanical connection or electrical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

As described in the background art, with the development of 5G information technology, a large amount of high-speed backplane connectors are required to be used in data centers, communication base stations, servers and other devices, so the transmission rate requirements on the high-speed backplane connectors are also increasing.

Typically, the backplane connector socket has a plurality of wafer units arranged side by side, and each wafer unit has a plurality of connection eyes extending therefrom to form a plurality of connectors for connecting to connected devices, wherein the connection eyes are used for high-speed signal transmission or for grounding shielding to ensure that the backplane connector has good data transmission capability. The ground connection fish eyes are arranged at different positions in different angles and different forms, and because the ground connection fish eyes are large in number and dense in distribution, crosstalk is easy to occur between the ground connection fish eyes in the use process, and the effect of data transmission is affected.

The present inventors have noted that in the related art, a connection fish eye is generally provided at the tail end of the mounting portion of the back-plate connector socket to form a plurality of connection heads for connection with the connected device. Although the number of connectors is large, and the position angles and the morphological functions are different, in order to be capable of being connected with the PCB in an adaptive manner, the connecting fish eyes are usually designed to be arranged in a regular manner.

Based on the above consideration, in order to solve the problems that in the related art, when the grounding fish eyes are arranged in a large number and at different positions in different angles and different forms, crosstalk is easy to occur between the two in the use process due to the large number and the dense distribution, and the effect of data transmission is affected. Through intensive research, the inventor designs a backboard connector socket, which can reduce mutual crosstalk among a plurality of connection fish eyes, protect the connection fish eyes and improve the installation reliability of the backboard connector socket.

Fig. 1 is a block diagram showing the back plate connector receptacle with the protective cover 4 removed in an embodiment of the present application, and fig. 2 is a side view showing the back plate connector receptacle in an embodiment of the present application.

Referring to fig. 1 and 2, the present application provides a back board connector socket, which includes a plurality of wafer units 1, a plurality of connection fish eyes 2 and a protection sleeve 4. The wafer units 1 are arranged side by side along the first direction, each wafer unit 1 is provided with a mounting end, the mounting end of each wafer unit 1 is fixedly connected with a plurality of connecting fish eyes 2, and each connecting fish eye 2 at least partially protrudes out of the corresponding mounting end of the wafer unit 1. The protective sleeve 4 is fixedly arranged at the mounting end of the wafer unit 1, a metal coating is arranged on the surface of one side of the protective sleeve 4 close to the mounting end, and the surface of one side of the protective sleeve 4 away from the mounting end is insulated. Wherein, the connection fisheye 2 on each wafer unit 1 penetrates the protective sleeve 4 and protrudes from one side surface of the protective sleeve 4 away from the mounting end, part of the connection fisheye 2 is electrically connected with each other through the metal coating so as to realize common ground interconnection of all connection fisheye 2 at the contact position with the metal coating, and the other part of connection fisheye 2 is not contacted with the metal coating so as to transmit high-speed signals.

Specifically, the back-plane connector receptacle is a transmission device in a data transmission system for realizing high-speed transmission of data, and a plurality of wafer units 1 are arranged side by side in a first direction to form the back-plane connector receptacle. The protective sleeve 4 is arranged at the mounting part of the backboard connector socket, and the backboard connector socket is connected with the PCB board in an adaptive manner through the mounting part.

It will be appreciated that, on the one hand, the protective sleeve 4 is provided with a metal coating on a side surface thereof close to the mounting end, a part of the connecting fisheye 2 is electrically connected to each other through the metal coating, and the other part of the connecting fisheye 2 is not in contact with the metal coating. Wherein a portion of the connection fish eyes 2 not contacting each other with the metal coating is used for transmitting high-speed signals, and the ground fish eyes commonly connected to each other through the metal coating are commonly grounded at the contact of the metal coating to prevent crosstalk and resonance of the connection fish eyes 2 for transmitting high-speed signals with each other. On the other hand, the connecting fish eyes 2 on each wafer unit 1 are all penetrated in the protective sleeve 4, so that the protective sleeve 4 can play a limiting role on the connecting fish eyes 2, prevent the connecting fish eyes 2 from bending or shifting and the like, and ensure the installation reliability of the backboard connector socket.

In some embodiments, the side of the protective sleeve 4 near the wafer unit 1 is electroplated with a metal coating, which can ground the partial connection fish eyes 2 to a common ground, and the side of the protective sleeve 4 far from the wafer unit 1 is insulated. Can not influence the performance of backplate connector socket when installing with the PCB board, also can play fixed correction's effect to a plurality of connection fisheyes 2 simultaneously, inhibit crosstalk and resonance between signal for this backplate connector socket has good integrality and validity, realizes 56Gbps and above rate signal transmission, and because the other surface of this protective sheath 4 is insulating surface, makes other circuits on the PCB circuit board can not receive the electromagnetic interference that this backplate connector socket brought.

Fig. 3 is a block diagram of a first half wafer 11 of a back plate connector receptacle according to an embodiment of the present application, fig. 4 is a block diagram of a second half wafer 12 of a back plate connector receptacle according to an embodiment of the present application, fig. 5 is a block diagram of a back plate connector receptacle according to an embodiment of the present application after the first half wafer 11 and the second half wafer 12 are bonded, fig. 6 is a bottom view of a back plate connector receptacle according to an embodiment of the present application after the first half wafer 11 and the second half wafer 12 are bonded, and fig. 7 is a bottom view of a back plate connector receptacle according to an embodiment of the present application.

Referring to fig. 3-7, in some embodiments, each wafer unit 1 includes a first half-wafer 11 and a second half-wafer 12 that are connected to each other. A plurality of connecting fisheyes 2 with equal number are fixedly connected to each first half-wafer 11 and each second half-wafer 12, and in any wafer unit 1, the plurality of grounding fisheyes on the first half-wafer 11 and the plurality of grounding fisheyes on the second half-wafer 12 are in one-to-one correspondence and are opposite to each other so as to form a plurality of pairs of connecting fisheyes which are arranged at intervals in a second direction, wherein the second direction is perpendicular to the first direction.

That is, each wafer unit 1 is formed by fixedly connecting one first half wafer 11 and one second half wafer 12, and a plurality of pairs of connection fish eyes 2 are formed at the mounting end of each wafer unit 1, and the plurality of pairs of connection fish eyes 2 are formed by fixedly connecting the first half wafer 11 and the second half wafer 12, and the connection fish eyes 2 on the first half wafer 11 and the connection fish eyes 2 on the second half wafer 12 are arranged in one-to-one correspondence and opposite to each other. The structure that the two half wafers are fixedly connected with each other to form the whole wafer is convenient to assemble and disassemble, and the connection fish eyes 2 on different half wafers on the same wafer unit 1 are more easily realized in a one-to-one correspondence and are oppositely arranged.

In some embodiments, first half-wafer 11 and second half-wafer 12 are mirror-symmetrical structures that are axes of symmetry at their fixed connections. To facilitate production and manufacture and to enable a regular shape appearance of the backplane connector receptacle.

In some embodiments, the surface of the first half-wafer 11 is provided with a mounting portion, and the surface of the second half-wafer 12 is provided with a mating portion that mates with the mounting portion, and the first half-wafer 11 and the second half-wafer 12 are mated and connected by the mounting portion and the mating portion, so that the first half-wafer 11 and the second half-wafer 12 can be perfectly mated.

Specifically, the first half wafer 11 is provided with a plurality of bosses on its upper surface, and the second half wafer 12 is provided with a plurality of fitting holes capable of fitting with the bosses.

In some embodiments, a plurality of first signal lines 111 spaced apart from each other and parallel to each other are disposed on each first half chip 11, and a plurality of second signal lines 121 spaced apart from each other and parallel to each other are disposed on each second half chip 12. In any of the wafer units 1, the first signal lines 111 and the second signal lines 121 are equal in number and correspond one to one and are disposed opposite to each other to form a plurality of differential signal line pairs for transmitting high-speed signals.

Specifically, the first signal line 111 and the second signal line 121 in each differential signal line pair are equal in length and parallel to each other in the first direction.

That is, a pair of differential signal lines is composed of two differential signal lines (one first signal line 111 and one second signal line 121) to achieve transmission of a high-speed signal. Inside each wafer unit 1, a plurality of differential signal line pairs are provided, and in one wafer unit 1, both the first signal line 111 and the second signal line 121 are also adjacent to each other due to the interconnection between the first half-wafer 11 and the second half-wafer 12, forming the differential signal line pairs. The first signal line 111 and the second signal line 121 in the same differential signal line pair are parallel to each other in the first direction, and the design manner can ensure that the lengths of the first signal line 111 and the second signal line 121 in each differential signal line pair are equal, so that the materials, the lengths, the positions and the like of the first signal line 111 and the second signal line 121 do not need to be physically optimized. Compared with the conventional technology, the first signal line 111 and the second signal line 121 with different lengths and different physical parameters are designed in one wafer to form the differential signal pair, only the relationship between the positions and the lengths of the first signal line 111 and the second signal line 121 is required to be focused, so that great convenience is brought to the manufacturing process.

In some embodiments, the plurality of connection fish eyes 2 includes a plurality of signal fish eyes 25, one signal fish eye 25 is connected to one end of each first signal line 111 near the protective sleeve 4 and one end of each second signal line 121 near the protective sleeve 4, and in any of the wafer units, the signal fish eyes 25 on the first signal line 111 and the signal fish eyes 25 on the second signal line 121 are disposed opposite to each other in the first direction to form a pair of signal fish eyes.

That is, the first signal fish eyes 25 and the second signal fish eyes 25 on the same differential signal line pair are disposed opposite to each other on the wafer unit 1 to form a signal fish eye pair, so that the later signal fish eye pair is electrically connected to the PCB board to transmit high-speed signals.

In some embodiments, the first half-wafer 11 is embedded with a first metal shielding sheet, the plurality of connection fish eyes 2 further includes a plurality of first grounding fish eyes 21 and a plurality of second grounding fish eyes 22 electrically connected by the metal coating, one end of each first metal shielding sheet, which is close to the protective sleeve 4, is provided with a plurality of first grounding fish eyes 21 and a plurality of second grounding fish eyes 22 electrically connected by the metal coating in a protruding manner, and along the second direction, a first grounding fish eye 21 is disposed between every two adjacent second grounding fish eyes 22 on the same first half-wafer 11.

It will be appreciated that the end of the first metal shielding sheet near the protective sleeve 4 extends a plurality of first grounding fisheyes 21 and second grounding fisheyes 22, and one first grounding fisheye 21 is disposed between every two adjacent second grounding fisheyes 22 on the same first half wafer 11. Wherein the first ground fish eyes 21 are used to form a reference reflow between two adjacent wafer units 1 and the second ground fish eyes 22 are used to form a reference reflow between the signal fish eyes 25 to reduce crosstalk between each other.

In some embodiments, the second half-wafer 12 is embedded with a second metal shielding plate, the plurality of connecting fish eyes 2 further includes a plurality of third grounding fish eyes 23 and a plurality of fourth grounding fish eyes 24 electrically connected by the metal coating, and one end of each second metal shielding plate, which is close to the protective sleeve 4, is convexly provided with a plurality of third grounding fish eyes 23 and a plurality of fourth grounding fish eyes 24 electrically connected by the metal coating. Along the second direction, a third grounding fisheye 23 is disposed between every two adjacent fourth grounding fisheyes 24 on the same second half-chip 12.

It will be appreciated that the end of the second metal shielding sheet near the protective sleeve 4 extends out a plurality of third grounding fisheyes 23 and fourth grounding fisheyes 24, and a third grounding fisheye 23 is disposed between every two adjacent fourth grounding fisheyes 24 on the same second half-chip 12. Wherein the third ground fish eye 23 is used to form a reference reflow between two adjacent wafer units 1. The second ground fish eyes 22 are used to form a reference return between the signal fish eyes 25 to reduce cross-talk between each other.

In some embodiments, the first signal line 111 is embedded in the first metal shielding sheet, the second signal line 121 is embedded in the second metal shielding sheet, the first metal shielding sheet and the second metal shielding sheet in any wafer unit 1 are fixedly connected with each other, the first signal line 111 in the first metal shielding sheet and the second signal line 121 in the second metal shielding sheet are parallel to each other in the second direction and are arranged at intervals to form a differential signal line pair, so that high-speed signal transmission is realized, and since the first signal line 111 and the second signal line 121 in the same wafer unit 1 are respectively embedded in the first metal shielding sheet and the second metal shielding sheet, a plurality of differential signal line pairs in the same wafer unit 1 do not interfere with each other, and data transmission is not affected.

In some embodiments, the second ground fish eye 22 and the fourth ground fish eye 24 each extend in a third direction perpendicular to both the first direction and the second direction. The first ground fish eyes 21 extend in the third direction and are inclined toward one second half wafer 12 in its adjacent wafer unit 1. The third ground fish eye 23 extends in a third direction and is inclined toward one first half wafer 11 in its adjacent wafer unit 1. The inclination of the first and third ground elements enables better reference reflow between two adjacent wafer elements 1 to reduce crosstalk between each other.

In some embodiments, the projections of the first grounding fisheye 21 and the third grounding fisheye 23 on the first plane of the adjacent first half-wafer 11 and second half-wafer 12 are spaced apart and staggered from each other. The first plane is parallel to the first direction and parallel to the second direction.

That is, the first ground fish eyes 21 are inclined toward the third ground fish eyes 23 on the second half wafer 12 adjacent thereto, and the third ground fish eyes 23 are inclined toward the first ground fish eyes 21 on the first half wafer 11 adjacent thereto. The projections of the two on the first plane are staggered with each other (i.e. a third grounding fisheye 23 is arranged between the two first grounding fisheyes 21, and a first grounding fisheye 21 is arranged between the two third grounding fisheyes 23), so as to form reference reflux between two adjacent wafer units 1, and reduce crosstalk between each other.

In some embodiments, the ends of the plurality of first ground fish eyes 21 distal from the protective sleeve 4 and the ends of the plurality of third ground fish eyes 23 distal from the protective sleeve 4 on adjacent first and second wafer halves 11, 12 are collinear.

Further, the lines of the ends of the adjacent first half-wafer 11 and second half-wafer 12 where the plurality of first grounding fish eyes 21 are away from the protective cover 4 and the ends of the plurality of third grounding fish eyes 23 are away from the protective cover 4 are collinear (the lines thereof form a straight line parallel to the second direction).

That is, the plurality of first grounding fish eyes 21 on the adjacent first half wafer 11 and second half wafer 12 are arranged apart from each other in the second direction at the end away from the protective cover 4 and the plurality of third grounding fish eyes 23 at the end away from the protective cover 4. The arrangement mode enables the connection end structure of the backboard connector socket to be more regular, and wiring of the PCB board of the subsequent connected piece is facilitated.

Fig. 8 shows a block diagram of the protective sheath 4 of the back-plane connector receptacle in an embodiment of the application.

Referring to fig. 8, in some embodiments, the protective sleeve 4 is further provided with a plurality of first grounding holes 41 spaced apart from each other, and a first grounding fisheye 21 or a third grounding fisheye 23 is disposed in each first grounding hole 41.

It will be appreciated that the first grounding fish eyes 21 or the third grounding fish eyes 23 are inserted into the first grounding holes 41 on the protective sleeve 4, and can be partially surrounded by the protective sleeve 4, so as to prevent the first grounding fish eyes 21 or the third grounding fish eyes 23 from bending.

In some embodiments, a plurality of second grounding holes 42 are further disposed on each protective sleeve 4 and spaced apart from each other, and a second grounding fisheye 22 or a fourth grounding fisheye 24 is disposed in each second grounding hole 42.

It is understood that the second grounding fish eyes 22 or the fourth grounding fish eyes 24 are penetrated in the second grounding holes 42 on the protective sleeve 4, and can be partially surrounded by the protective sleeve 4, so as to prevent the second grounding fish eyes 22 or the fourth grounding fish eyes 24 from bending.

In some embodiments, the first grounding fisheye 21 and the second grounding fisheye 22 are each provided with a first bump near the first half-wafer 11, and the third grounding fisheye 23 and the fourth grounding fisheye 24 are each provided with a second bump near the second half-wafer 12. The first grounding fish eyes 21 and the second grounding fish eyes 22 are in interference fit with the protective sleeve 4 through the first protrusions and are in direct contact with the metal coating, and the third grounding fish eyes 23 and the fourth grounding fish eyes 24 are in interference fit with the protective sleeve 4 through the second protrusions and are in direct contact with the metal coating. Further, the first grounding fish eyes 21, the second grounding fish eyes 22, the third grounding fish eyes 23 and the fourth grounding fish eyes 24 can be connected with each other in a common mode at the contact position with the protective sleeve 4, so that bending is not easy to occur.

Specifically, the second ground fish eye 22 and the fourth ground fish eye 24 in any one wafer unit are electrically connected to the metal coating on the protective sheath 4 through the first bump and the second bump, respectively, to be grounded and interconnected. The first grounding fisheye 21 and the third grounding fisheye 23, which are arranged close to each other in any two adjacent wafer units, are electrically connected with the metal coating on the protective sleeve through the first bulge and the second bulge respectively so as to enable the adjacent two wafer units to be grounded and interconnected. Therefore, the common ground of the pins (the second grounding fisheye 22 and the fourth grounding fisheye 24) of the metal shielding sheet inside one wafer unit is ensured, and the common ground of the pins (the first grounding fisheye 21 and the third grounding fisheye 23) of the metal shielding sheet of two adjacent wafer units is ensured, so that the whole back panel connector has higher data transmission efficiency.

In some embodiments, the protective sleeve 4 is provided with a plurality of differential holes 43 arranged at intervals, and two signal fish eyes 25 are respectively arranged in each differential hole 43 in a penetrating manner. That is, the differential hole 43 serves as a relief hole for the signal fish eye 25.

In some embodiments, at least four first grounding holes 41 are provided around each differential hole 43, and at least three second grounding holes 42 are provided around each differential hole 43.

It will be appreciated that the number of components, two first grounding fish eyes 21 and two third grounding fish eyes 23 are arranged around the differential signal pair on the wafer unit 1 at the middle position. The periphery of the wafer unit 1 at the edge position is provided with a first grounding fish eye 21 and two grounding fish eyes a third ground fish eye 23 or two first ground fish eyes 21 and one third ground fish eye 23.

The connection fish eyes of the mounting portion of the back-plate connector socket of the present application are commonly interconnected by a partially plated protective sleeve having a metal coating plated on one side surface and insulated on the other side surface. Can not influence the performance of backplate connector socket when installing with the PCB board, also can play fixed effect of correcting to a plurality of connection fish eyes simultaneously, inhibit crosstalk and resonance between signal for this backplate connector socket has good integrality and validity, realizes 56Gbps and above rate signal transmission, and because the other surface of this protective sheath is insulating surface, makes other circuits on the PCB circuit board can not receive the electromagnetic interference that this backplate connector socket brought.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A backplane connector receptacle, the backplane connector receptacle comprising:

a plurality of wafer units arranged side by side along a first direction, wherein each wafer unit is provided with a mounting end;

the mounting end of each wafer unit is fixedly connected with a plurality of connecting fish eyes, and each connecting fish eye at least partially protrudes out of the corresponding mounting end of the wafer unit; and

The protective sleeve is fixedly arranged at the mounting end of the wafer unit, a metal coating is arranged on one side surface of the protective sleeve, which is close to the mounting end, and one side surface of the protective sleeve, which is far away from the mounting end, is insulated;

Wherein, the connecting fish eyes on each wafer unit penetrate through the protective sleeve and are projected on the surface of one side of the protective sleeve, which is far away from the mounting end, part of the connecting fish eyes are electrically connected with each other through the metal coating, and the other part of the connecting fish eyes are not contacted with the metal coating;

Each wafer unit comprises a first half wafer and a second half wafer which are connected with each other;

the plurality of connection fish eyes comprise a plurality of signal fish eyes which are not contacted with the metal coating, a plurality of first grounding fish eyes and a plurality of second grounding fish eyes which are arranged on the first half chip and can be electrically connected through the metal coating, and a plurality of third grounding fish eyes and a plurality of fourth grounding fish eyes which are arranged on the second half chip and can be electrically connected through the metal coating;

the first grounding fish eyes and the third grounding fish eyes are used for forming reference reflux between two adjacent wafer units, and the second grounding fish eyes and the fourth grounding fish eyes are used for forming reference reflux between signal fish eyes.

2. The backplane connector receptacle of claim 1, wherein an equal number of said connection fish eyes are fixedly connected to each of said first half-wafer and each of said second half-wafer;

In any one of the wafer units, the plurality of grounding fish eyes on the first half wafer and the plurality of grounding fish eyes on the second half wafer are in one-to-one correspondence and are arranged opposite to each other so as to form a plurality of pairs of connecting fish eyes which are arranged at intervals in the second direction;

Wherein the second direction is perpendicular to the first direction.

3. The backplane connector receptacle of claim 2, wherein each of said first half-dies has a plurality of spaced and parallel first signal lines and each of said second half-dies has a plurality of spaced and parallel second signal lines;

in any of the wafer units, the first signal lines and the second signal lines are equal in number and correspond one to one and are arranged opposite to each other to form a plurality of differential signal line pairs.

4. The backplane connector receptacle of claim 3, wherein an end of each of said first signal lines adjacent said protective sheath and an end of each of said second signal lines adjacent said protective sheath are each connected with a signal fish eye;

In any of the wafer units, the signal fish eyes on the first signal line and the signal fish eyes on the second signal line are disposed opposite to each other in the first direction to form a pair of signal fish eye pairs.

5. The backplane connector receptacle of claim 4, wherein the first half die has a first metal shield embedded therein;

A plurality of first grounding fish eyes and a plurality of second grounding fish eyes are convexly arranged at one end of each first metal shielding sheet, which is close to the protective sleeve;

and one first grounding fish eye is arranged between every two adjacent second grounding fish eyes on the same first half wafer along the second direction.

6. The backplane connector receptacle of claim 5, wherein the second half-die is embedded with a second metal shield;

a plurality of third grounding fish eyes and a plurality of fourth grounding fish eyes are convexly arranged at one end of each second metal shielding sheet, which is close to the protective sleeve;

and along the second direction, one third grounding fish eye is arranged between every two adjacent fourth grounding fish eyes on the same second half wafer.

7. The backplane connector receptacle of claim 6, wherein,

The projections of the first grounding fish eyes and the third grounding fish eyes on the first plane are arranged at intervals and staggered with each other;

Wherein the first plane is parallel to the first direction and parallel to the second direction.

8. The backplane connector receptacle of claim 7, wherein an end of the plurality of first ground fish eyes on the adjacent first and second wafer halves remote from the protective sheath and an end of the plurality of third ground fish eyes remote from the protective sheath are collinear.

9. The back plate connector receptacle of claim 6, wherein said protective sleeve further has a plurality of first ground holes spaced apart from one another;

Each first grounding hole is internally provided with a first grounding fish eye or a third grounding fish eye in a penetrating way.

10. The backplane connector receptacle of claim 9, wherein each of said protective sleeves further comprises a plurality of second ground holes spaced apart from one another;

each second grounding hole is internally provided with a second grounding fish eye or a fourth grounding fish eye in a penetrating way.

11. The back plate connector receptacle of claim 10, wherein the protective sleeve is provided with a plurality of differential holes spaced apart from one another;

Two signal fish eyes are arranged in each differential hole in a penetrating way.

12. The backplane connector receptacle of claim 11, wherein,

At least four first grounding holes are formed around each differential hole;

at least three second grounding holes are arranged around each differential hole.