CN210985101U

CN210985101U - Back panel connector

Info

Publication number: CN210985101U
Application number: CN201921891193.9U
Authority: CN
Inventors: 宋璐; 岑燎炬; 张振力
Original assignee: FCI Connectors Dongguan Co Ltd
Current assignee: FCI Connectors Dongguan Co Ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-07-10
Anticipated expiration: 2029-11-05

Abstract

The utility model provides a pair of backplane connector, including connector body, protecgulum, the connector body comprises m terminal subassembly that sets up side by side, the terminal subassembly includes plastic envelope casing, signal terminal, ground terminal, conductive resin board, the quantity of ground terminal is an a, conductive resin board one end be connected with a first arch of ground terminal contact, the conductive resin board other end is connected with the second arch, per two still press from both sides between the terminal subassembly and be equipped with the conducting strip, the conducting strip includes the conductive resin piece and connects the copper sheet of conductive resin piece front end, the second arch with correspond the position the copper sheet links to each other. The utility model discloses a backplane connector can eliminate all the other signal terminal's crosstalk and coupling, improves signal transmission speed.

Description

Back panel connector

Technical Field

The utility model relates to a connector technical field, concretely relates to backplane connector.

Background

With the rapid development of information technology and the increasing demand for data, the data transmission rate of mass data transmission is more and more demanding. High speed connectors, including backplane connectors, board-to-board connectors, and I/O connectors are also being developed at higher rates. The backplane connector is a connector commonly used for large-scale communication equipment, ultrahigh-performance servers, supercomputers, industrial computers and storage equipment, is mainly used for connecting a single board and a backplane, and forms a 90-degree vertical structure between the single board and the backplane and is used for transmitting high-speed differential signals or single-ended signals and large current.

In the backplane connector in the prior art, due to the fact that the number of terminals at the plugging end is large, crosstalk and coupling can be generated among the signal terminals, and the normal signal transmission performance of the signal terminals can be seriously affected.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a backplane connector can eliminate all the other signal terminal's crosstalk and coupling, improves signal transmission speed.

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

a backplane connector comprises a connector body and a front cover sleeved on the front end of the connector body, the connector body consists of m terminal assemblies which are arranged in parallel, m is an integer which is more than or equal to 2, the terminal assembly comprises a plastic package shell, a signal terminal, a grounding terminal and a conductive resin plate, wherein the signal terminal and the grounding terminal are fixed on the plastic package shell, the conductive resin plate is fixed at one end of the plastic package shell, the number of the ground terminals is a, a is an integer greater than or equal to 2, one end of the conductive resin plate is connected with a first bulges which are contacted with the ground terminals, the other end of the conductive resin plate is connected with a second bulge, a conductive sheet is clamped between every two terminal components, the conductive sheet comprises a conductive resin sheet and a copper sheet connected to the front end of the conductive resin sheet, and the second protrusion is connected with the copper sheet at a corresponding position.

Specifically, the number of the signal terminals is b, b is an integer greater than or equal to 2, and the front cover is provided with m × (a + b) insertion holes for the signal terminals and the ground terminals to be inserted into.

Specifically, the rear end of the connector body is further provided with a fixing block.

Specifically, a plurality of limiting blocks are arranged on the conductive resin sheet, and a plurality of limiting holes for embedding the limiting blocks are formed in the copper sheet.

Specifically, the middle part of the plastic package shell is also provided with a heat dissipation groove.

The utility model has the advantages that:

first, the backplane connector of the present invention isolates the signal terminals in different rows by the conductive sheet to eliminate crosstalk and coupling between the signal terminals in different rows of the mating terminal, and the new design combines the conductive resin sheet and the copper sheet together to eliminate crosstalk and coupling, which is much more effective than the application of the conductive resin sheet alone, and by adopting such a structure, the transmission speed of the connector can reach 112Gbps through testing;

secondly, the conducting strip is contacted with the conducting resin plates of the terminal assemblies, and the conducting resin plates connect all the grounding terminals in one terminal assembly together, so that the conducting strip and the grounding terminals are electrically connected to form an integral grounding system, and the SI performance of the connector is further improved;

and thirdly, the conductive sheet formed by molding the copper sheet insert on the conductive resin sheet has simple molding process and scratch-resistant performance on the contact surface, and can achieve higher transmission speed through the design.

Drawings

Fig. 1 is a schematic structural diagram of a backplane connector according to the present invention.

Fig. 2 is a schematic structural diagram of a backplane connector according to the present invention.

Fig. 3 is a schematic structural diagram of the middle connector body, the conductive piece and the fixing block according to the present invention.

Fig. 4 is a schematic structural diagram of the middle connector body, the conductive piece and the fixing block according to the present invention.

Fig. 5 is an enlarged view of a-a in fig. 4.

Fig. 6 is a first schematic structural diagram of the terminal assembly of the present invention.

Fig. 7 is a second schematic structural view of a terminal assembly according to the present invention.

Fig. 8 is an enlarged view of B-B in fig. 7.

Fig. 9 is a schematic structural view of the conductive sheet of the present invention.

Fig. 10 is an enlarged view of C-C in fig. 9.

The reference signs are: the connector comprises a connector body 1, a terminal assembly 11, a plastic package shell 111, a signal terminal 112, a ground terminal 113, a conductive resin board 114, a first protrusion 101, a second protrusion 102, a heat dissipation groove 103, a front cover 2, a plug hole 21, a conductive sheet 3, a conductive resin sheet 31, a limiting block 311, a copper sheet 32 and a fixing block 4.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

As shown in fig. 1-10:

a backplane connector comprises a connector body 1 and a front cover 2 sleeved on the front end of the connector body 1, wherein the connector body 1 is composed of 6 terminal assemblies 11 arranged in parallel, each terminal assembly 11 comprises a plastic package shell 111, a signal terminal 112 fixed on the plastic package shell 111, a ground terminal 113 and a conductive resin plate 114 fixed on one end of the plastic package shell 111, the number of the ground terminals 113 is 3, one end of the conductive resin plate 114 is connected with 3 first bulges 101 contacted with the ground terminal 113, the other end of the conductive resin plate 114 is connected with a second bulge 102, a conductive sheet 3 is clamped between every two terminal assemblies 11, the conductive sheet 3 is contacted with the second bulge 102 of the conductive resin plate 114, the conductive resin plate 114 connects all the ground terminals 113 in one terminal assembly 11 together through the first bulges 101, so that the conductive sheet 3 and the ground terminal 113 are electrically connected to form an integral ground system, therefore, the SI performance of the connector is further improved, the conductive sheet 3 comprises a conductive resin sheet 31 and a copper sheet 32 connected to the front end of the conductive resin sheet 31, the second protrusion 102 is connected with the copper sheet 32 at the corresponding position, the signal terminals 112 in different columns are isolated through the conductive sheet 3, so that crosstalk and coupling among the signal terminals 112 in different columns of the plugging terminal are eliminated, and the conductive resin sheet 31 and the copper sheet 32 are combined together through a new design, so that crosstalk and coupling are eliminated, which is much more effective than that of the conductive resin sheet 31 only, and through adopting the structure, the transmission speed of the connector can reach 112Gbps through testing.

The number of the signal terminals 112 is 6, and 54 insertion holes 21 into which the signal terminals 112 and the ground terminals 113 are inserted are provided in the front cover 2.

In order to fix the positions of the 6 terminal assemblies 11, a fixing block 4 is further provided at the rear end of the connector body 1.

In order to improve the structural stability of the copper sheet 32 and the conductive resin sheet 31 and avoid the deviation of the copper sheet 32, a plurality of limiting blocks 311 are arranged on the conductive resin sheet 31, and a plurality of limiting holes for embedding the limiting blocks 311 are arranged on the copper sheet 32.

In order to improve the heat dissipation performance of the terminal assembly 11, a heat dissipation groove 103 is further formed in the middle of the plastic package housing 111.

The above embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The backplane connector is characterized by comprising a connector body (1) and a front cover (2) sleeved at the front end of the connector body (1), wherein the connector body (1) consists of m terminal assemblies (11) which are arranged in parallel, m is an integer greater than or equal to 2, each terminal assembly (11) comprises a plastic package shell (111), a signal terminal (112) and a ground terminal (113) which are fixed on the plastic package shell (111), and a conductive resin plate (114) which is fixed at one end of the plastic package shell (111), the number of the ground terminals (113) is a, a is an integer greater than or equal to 2, one end of the conductive resin plate (114) is connected with a first bulges (101) which are in contact with the ground terminals (113), the other end of the conductive resin plate (114) is connected with a second bulge (102), and a conducting strip (3) is clamped between every two terminal assemblies (11), the conductive sheet (3) comprises a conductive resin sheet (31) and a copper sheet (32) connected to the front end of the conductive resin sheet (31), and the second protrusion (102) is connected with the copper sheet (32) at the corresponding position.

2. The backplane connector of claim 1, wherein the number of the signal terminals (112) is b, b being an integer greater than or equal to 2, and the front cover (2) is provided with m × (a + b) insertion holes (21) into which the signal terminals (112) and the ground terminals (113) are inserted.

3. A backplane connector according to claim 1, wherein the connector body (1) is further provided with a fixing block (4) at a rear end thereof.

4. The backplane connector of claim 1, wherein the conductive resin sheet (31) is provided with a plurality of stoppers (311), and the copper sheet (32) is provided with a plurality of stopper holes for the stoppers (311) to be inserted into.

5. The backplane connector of claim 1, wherein a heat dissipation groove (103) is further disposed in a middle portion of the plastic package housing (111).