CN109861035B

CN109861035B - High-speed connector

Info

Publication number: CN109861035B
Application number: CN201910325557.5A
Authority: CN
Inventors: 代秀云; 何洪; 张洺诚
Original assignee: Sichuan Huafeng Technology Co Ltd
Current assignee: Sichuan Huafeng Technology Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2023-12-05
Anticipated expiration: 2039-04-22
Also published as: CN109861035A

Abstract

The application discloses a high-speed connector, which comprises a first connector and a second connector which are mutually spliced, wherein a plurality of U-shaped shielding element arrays are arranged in the first connector, a plurality of signal modules which are arranged in an overlapping mode are arranged in the second connector, the signal modules comprise a plurality of signal terminal pairs and shielding assemblies which cover one sides of the signal terminal pairs, a plurality of grounding terminals are arranged on the shielding assemblies at intervals, and the grounding terminals are contacted with U-shaped side walls of the U-shaped shielding elements in the first connector. According to the application, the grounding terminal contacted with the U-shaped side wall of the male U-shaped shielding piece is arranged on the female shielding component, so that the reflux path can be shortened as much as possible, the crosstalk between differential signals is reduced, and the transmission efficiency of the high-speed connector is improved.

Description

High-speed connector

Technical Field

The application relates to the technical field of connectors, in particular to a high-speed connector.

Background

The high-speed connector is widely applied to communication technology, is a connector commonly used for large-scale communication equipment, ultra-high performance servers, supercomputers, industrial computers and high-end storage equipment, and mainly has the functions of connecting a single board with a back board, forming a 90-degree vertical structure between the single board and the back board, transmitting high-speed differential signals or single-ended signals and transmitting large current.

With the continuous improvement of communication technology, the requirements on data transmission rate and transmission quality are also increasing. The existing high-speed connector has serious crosstalk between signals due to the limitation of various structures in the connector, and the transmission quality of data is affected.

Disclosure of Invention

The application aims to provide a high-speed connector, which solves the problem of serious signal crosstalk of the existing high-speed connector.

In order to solve the technical problems, the application adopts the following technical scheme:

the utility model provides a high-speed connector, includes first connector and the second connector of pegging graft each other, is provided with a plurality of U type shielding piece arrays in the aforesaid first connector, is provided with a plurality of signal module that overlap the range in the aforesaid second connector, and above-mentioned signal module includes a plurality of signal terminal pairs and covers the shielding component to one side at signal terminal pair, and the interval is provided with a plurality of ground terminal on the above-mentioned shielding component, and the contact of the U type lateral wall of the U type shielding piece in above-mentioned first connector of above-mentioned ground terminal.

Preferably, a ground wire reed is further fixed to the shield assembly at a position corresponding to the ground terminal, and the ground wire reed is in contact with a U-shaped end surface of the U-shaped shield in the first connector.

Preferably, the ground terminal on the shielding assembly is located between the adjacent U-shaped shielding pieces on the same plane or located outside the U-shaped shielding piece on the outermost side; the grounding terminal between the adjacent U-shaped shielding pieces is provided with two symmetrically arranged plug-in parts which are respectively contacted with the side walls of the U-shaped shielding pieces at the two sides of the grounding terminal; the contact terminals located outside the outermost U-shaped shield have mating portions that contact the outer sidewalls thereof.

Preferably, the ground wire reed is provided with two symmetrically arranged ground wire contact parts which are respectively contacted with the U-shaped end surfaces of the U-shaped shielding pieces at two sides of the ground wire reed; or the ground wire reed is provided with a ground wire contact part which is contacted with the outer U-shaped end face of the U-shaped shielding piece at the outermost side.

Preferably, the shielding assembly includes a first shielding member and a second shielding member connected to the first shielding member, and the ground wire reed and the second shielding member are respectively fixed to both sides of the first shielding member.

Preferably, a plurality of sets of first elastic structures are arranged on the second shielding piece at intervals, and the first elastic structures are contacted with the bottom of the U-shaped shielding piece in the first connector.

Preferably, the second shielding member is provided with a second elastic structure, and the second elastic structure protrudes towards the adjacent signal module and contacts with the ground wire reed on the adjacent signal module.

Preferably, the second elastic structures on the second shielding member are consistent with and correspond to the number of the ground wire reeds on the adjacent modules one by one.

Preferably, a folded plate bent in an L shape with respect to the second shield is provided at a side edge of the second shield, and the folded plate is in contact with a side edge of the second shield on an adjacent signal module.

Compared with the prior art, the application has the beneficial effects that:

according to the application, the ground lead reed contacted with the U-shaped end surface of the male U-shaped shielding piece is arranged on the female shielding component, and the ground terminal contacted with the U-shaped side wall of the male U-shaped shielding piece is arranged on the female shielding component, so that the reflux path can be shortened as much as possible, the crosstalk between differential signals is reduced, and the transmission efficiency of the high-speed connector is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the high-speed connector of the present application.

Fig. 2 is a schematic structural view of a first connector in the high-speed connector of the present application.

Fig. 3 is a schematic view of a module structure in the second connector of the present application.

Fig. 4 is a side view of an adjacent module structure of the present application.

Fig. 5 is a partial enlarged view at a in fig. 4.

Fig. 6 is a schematic structural view showing contact between a ground terminal of a shielding assembly of the present application and a U-shaped shielding member of a first connector.

Fig. 7 is a schematic structural view showing contact between a ground trace reed on the shielding assembly of the present application and a U-shaped shielding member of the first connector.

Fig. 8 is a schematic top view of an arrangement structure of the shielding assembly of the present application.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

Fig. 1 shows a high-speed connector in which a first connector 1 and a second connector 2 are inserted into each other, a plurality of arrays of U-shaped shields 11 are provided in the first connector 1, and a pair of differential signal pairs 12 are provided in each of the U-shaped shields 11, as shown in fig. 2.

As shown in fig. 3 to 6, a plurality of signal modules 20 are arranged in an overlapping manner in the second connector 2, the signal modules 20 include a plurality of signal terminal pairs 21 and a shield member 22 covering one side of the signal terminal pairs 21, a plurality of ground terminals 221 are provided at intervals on the shield member 22, and the ground terminals 221 are in contact with the U-shaped side walls of the U-shaped shield 11 in the first connector 1. With this configuration, the return path of the high-speed connector can be shortened, and crosstalk between differential pairs can be reduced.

For structural rationality and convenience in manufacturing the product, and at the same time, in order to enable the side walls of all the U-shaped shields to be in contact with the ground terminals, there may be two cases where the ground terminals in the shield assembly are located, one is that the ground terminals 221 on the shield assembly 22 are located between the U-shaped shields 11 adjacent to the same plane, and the other is that the ground terminals 221 in the shield assembly 22 are located outside the outermost U-shaped shields 11; the grounding terminal 221 between the adjacent U-shaped shields 11 is provided with two symmetrically arranged plug-in parts 2211 which are respectively contacted with the side walls of the U-shaped shields 11 at the two sides; the contact terminal located outside the outermost U-shaped shield 11 has a socket 2211 in contact with the outer side wall thereof.

In addition, as shown in fig. 7, in order to further shorten the return path and reduce crosstalk between differential pairs, a ground wire reed 222 is fixed to the shield assembly 22 at a position corresponding to the ground terminal 221, and the ground wire reed 222 is in contact with the U-shaped end surface of the U-shaped shield 11 in the first connector 1.

Since the ground wire reed 222 corresponds to the ground terminal 221, there is a correspondence between the positions of the ground wire reed 222 and the ground terminal 221, that is, in order to enable the ground wire reed 222 to cover all the end surfaces of all the U-shaped shields 11, that is, the ground wire reed 222 has two structures, one of which is that the ground wire reed 222 has two symmetrically arranged ground wire contact portions 2221, which are respectively contacted with the U-shaped end surfaces of the U-shaped shields 11 on both sides thereof; the other is that the ground wire spring 222 has a ground wire contact portion 2221 that contacts the outer U-shaped end surface of the outermost U-shaped shield 11.

As shown in fig. 5 and 8, the shielding assembly 22 includes a first shielding member 223 and a second shielding member 224 connected to the first shielding member 223, and the ground lead 222 and the second shielding member 224 are respectively fixed to both sides of the first shielding member 223. By providing the first shield 223 and the second shield 224, contact points of the shield assembly can be increased and are in mutual mating contact with the U-shaped shields in the first connector, thereby being more beneficial to shortening the reflow path and reducing crosstalk between differential signal pairs. The connection between the first shield member 223 and the second shield member 224 may be alternatively laser welding, ultrasonic friction welding, a flip rivet process, or the like, and is not limited to the above.

The second shielding member 224 is provided with a plurality of groups of first elastic structures 2241 at intervals, and the first elastic structures 2241 are in contact with the bottom of the U-shaped shielding member 11 in the first connector 1, so that a return path can be shortened, and signal crosstalk can be reduced. Meanwhile, a strip-shaped through groove is formed in the second shielding member 224, one end of the first elastic structure 2241 is connected in the strip-shaped through groove, the other end extends towards the outer side of the second shielding member 224, and a protruding portion is formed on the second elastic structure so as to be in contact with the bottom of the U-shaped shielding member 11.

The second shielding member 224 is provided with a second elastic structure 2242, and the second elastic structure 2242 protrudes toward the adjacent signal module 20 and contacts with the ground trace reed 222 on the adjacent signal module 20. The purpose of the second resilient structure 2242 contacting the ground trace reed 222 is also to shorten the return path and reduce crosstalk between differential signals.

The second resilient structures 2242 on the second shield 224 are identical in number and in one-to-one correspondence with the ground trace reeds 222 on the adjacent module.

A flap 2243 bent in an L shape with respect to the second shield 224 is provided at a side edge of the second shield 224, and the flap 2243 is in contact with a side edge of the second shield 224 on the adjacent signal module 20. The main effect is to shorten the return path and reduce the cross-talk between differential signals while also increasing the strength of the structure.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application as broadly described. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the application.

Although the application has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various variations and modifications may be made to the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, drawings and claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will be apparent to those skilled in the art.

Claims

1. The utility model provides a high-speed connector, includes first connector (1) and second connector (2) of pegging graft each other, be provided with a plurality of U type shielding piece (11) arrays in first connector (1), be provided with a plurality of signal module (20) of overlapping range in second connector (2), its characterized in that:

the signal module (20) comprises a plurality of signal terminal pairs (21) and a shielding assembly (22) covered on one side of the signal terminal pairs (21),

a plurality of grounding terminals (221) are arranged on the shielding assembly (22) at intervals, and the grounding terminals (221) are contacted with the U-shaped side wall of the U-shaped shielding piece (11) in the first connector (1); a ground wire reed (222) is also fixed on the shielding component (22) corresponding to the grounding terminal (221), and the ground wire reed (222) is contacted with the U-shaped end face of the U-shaped shielding piece (11) in the first connector (1); the grounding terminal (221) on the shielding assembly (22) is positioned between the U-shaped shielding pieces (11) adjacent to the same plane or positioned outside the U-shaped shielding piece (11) at the outermost side; the grounding terminal (221) between the adjacent U-shaped shielding pieces (11) is provided with two symmetrically arranged plug-in parts (2211) which are respectively contacted with the side walls of the U-shaped shielding pieces (11) at the two sides of the grounding terminal; the contact terminal positioned outside the U-shaped shielding piece (11) at the outermost side is provided with a plugging part (2211) contacted with the outer side wall of the contact terminal, the shielding assembly (22) comprises a first shielding piece (223) and a second shielding piece (224) connected to the first shielding piece (223), and the ground wire reed (222) and the second shielding piece (224) are respectively fixed on two side surfaces of the first shielding piece (223).

2. The high-speed connector of claim 1, wherein: the ground wire reed (222) is provided with two symmetrically arranged ground wire contact parts (2221) which are respectively contacted with the U-shaped end surfaces of the U-shaped shielding pieces (11) at the two sides of the ground wire reed; or the ground wire reed (222) is provided with a ground wire contact part (2221) which is contacted with the outer U-shaped end face of the U-shaped shielding piece (11) at the outermost side.

3. The high-speed connector of claim 1, wherein: a plurality of groups of first elastic structures (2241) are arranged on the second shielding piece (224) at intervals, and the first elastic structures (2241) are contacted with the bottom of the U-shaped shielding piece (11) in the first connector (1).

4. A high-speed connector according to claim 3, wherein: the second shielding piece (224) is also provided with a second elastic structure (2242), and the second elastic structure (2242) protrudes towards the adjacent signal module (20) and contacts with the ground wire reed (222) on the adjacent signal module (20).

5. The high-speed connector of claim 4, wherein: the second resilient structures (2242) on the second shield (224) are consistent with and correspond one-to-one to the number of ground trace reeds (222) on adjacent modules.

6. The high-speed connector of claim 4, wherein: a flap (2243) bent in an L shape with the second shield (224) is provided at a side edge of the second shield (224), and the flap (2243) is in contact with a side edge of the second shield (224) on an adjacent signal module (20).