CN109768438B - Shielding assembly for high-speed connector, module structure and high-speed connector - Google Patents
Shielding assembly for high-speed connector, module structure and high-speed connector Download PDFInfo
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- CN109768438B CN109768438B CN201910253102.7A CN201910253102A CN109768438B CN 109768438 B CN109768438 B CN 109768438B CN 201910253102 A CN201910253102 A CN 201910253102A CN 109768438 B CN109768438 B CN 109768438B
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- 230000008054 signal transmission Effects 0.000 claims abstract description 26
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Abstract
The invention discloses a shielding assembly for a high-speed connector, a module structure and the high-speed connector, wherein the module structure comprises a signal transmission module and a shielding assembly arranged on the signal transmission module, the shielding assembly comprises a first shielding piece and a second shielding piece, and the first shielding piece and the second shielding piece are fixed through a guide post. According to the invention, the first shielding piece and the second shielding piece are fixed in the modes of the guide post, laser welding and the like, and the relative position size between the first shielding piece and the second shielding piece can be accurately controlled after the first shielding piece and the second shielding piece are fixed, so that the consistency of the impedance of the differential pair is ensured.
Description
Technical Field
The invention relates to the technical field of high-speed connectors, in particular to a shielding assembly for a high-speed connector, a module structure and the 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.
On the other hand, due to the connection mode between the parts, displacement between the parts can be caused in the process of plugging the connector, and the consistency of the impedance of the differential pair is affected.
Disclosure of Invention
The invention aims to provide a shielding assembly for a high-speed connector, a module structure and the high-speed connector, which solve the problem that the connection mode in the shielding assembly possibly causes displacement among parts in the process of connector plugging and affects the consistency of differential pair impedance.
In order to solve the technical problems, the invention adopts the following technical scheme:
a shielding assembly for a high-speed connector includes a first shielding member and a second shielding member, which are fixed by a guide post therebetween.
Preferably, the shielding assembly is mounted on the signal transmission module, the first shielding member includes a shielding member body adapted to the size of the signal module, and a ground terminal and a ground tail portion disposed at two adjacent side edges of the shielding member body, the second shielding member covers over the ground terminal of the first shielding member and is fixed to the shielding member body through a guide post, and a Y-shaped connection structure is formed between the second shielding member and the ground terminal of the first shielding member.
Preferably, the end portion of the second shielding member, which is connected to the first shielding member, is provided with two or more protruding teeth, and the protruding teeth are provided with through holes adapted to the guide posts.
Preferably, the contact portion between the first shielding member and the second shielding member is further provided with two or more connection points which are uniformly arranged.
Preferably, a first elastic structure is disposed at a position of the second shielding member corresponding to the grounding terminal of the first shielding member, and the first elastic structure on the second shielding member is overlapped with the grounding terminal of the first shielding member on the adjacent signal transmission module.
Preferably, the ground terminals are provided at intervals and are located between adjacent signal terminals, and the number of the first elastic structures is identical to the number of the ground terminals and corresponds to one.
Preferably, two second elastic structures with the same extending direction are further disposed on one side of each first elastic structure on the second shielding member, and the two second elastic structures are respectively located in different strip-shaped through grooves.
Preferably, a protruding frame is provided at a side edge of the second shield member, the protruding frame is in contact with a side edge of the second shield member in the adjacent shield assembly, and mounting positions of the protruding frames on the adjacent shield assemblies are opposite.
A module structure for a high-speed connector comprises a signal transmission module and the shielding assembly mounted on the signal transmission module.
A high-speed connector comprises a signal transmission module and the shielding assembly mounted on the signal transmission module.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the first shielding piece and the second shielding piece are fixed in the modes of the guide post, laser welding and the like, and the relative position size between the first shielding piece and the second shielding piece can be accurately controlled after the first shielding piece and the second shielding piece are fixed, so that the consistency of the impedance of the differential pair is ensured.
The invention adopts the shielding component formed by combining the first shielding component and the second shielding component, and the elastic structure and the ground wiring structure are arranged at corresponding positions in the shielding component, and the elastic structure on the shielding component is mutually overlapped with the ground wiring structure on the adjacent shielding component, so that the reflux path is shortened as much as possible, and the crosstalk between differential pairs is improved.
Drawings
Fig. 1 is a schematic structural view of a high-speed connector according to the present invention.
Fig. 2 is a schematic structural view of the module structure of the present invention.
Fig. 3 is a schematic structural view of a shielding assembly according to the present invention.
Fig. 4 is a diagram of the positional relationship between adjacent shielding assemblies of the present invention.
Fig. 5 is a side view of the invention between adjacent shield assemblies.
Fig. 6 is a cross-sectional view taken along line B-B in fig. 5 in accordance with the present invention.
Fig. 7 is a schematic structural diagram of a signal transmission module according to the present invention.
Fig. 8 is a schematic structural view of the first shield of the present invention.
Fig. 9 is a schematic structural view of the second shield of the present invention.
Detailed Description
The present invention 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 invention 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 invention.
Fig. 1 shows a schematic diagram of a combined structure of a module structure and a mounting base in the high-speed connector, in which the module structure is plugged inside the mounting base 40, and the module structure is mounted in the mounting base 40 to serve as a female connector of the high-speed connector, and the female connector is then plugged and matched with a male connector to finally form a complete connector structure, wherein the module structure comprises a signal transmission module 10.
As shown in fig. 2 and 3, a plurality of signal transmission modules 10 are sequentially arranged in a high-speed connector in sequence, and a shielding assembly 20 is mounted on each signal transmission module 10, wherein the shielding assembly 20 comprises a first shielding member 21 and a second shielding member 22, and the first shielding member 21 and the second shielding member 22 are fixed through a guide post 23; the relative position size between the first shielding member and the second shielding member can be precisely controlled after the fixing by the guide posts 23, so that the consistency of the impedance of the differential pair is ensured.
As shown in fig. 3, 8, 9, the first shield assembly 21 includes a shield main body 211 sized to fit the signal transmission module 10, and ground terminals 213 and ground tails 212 provided at adjacent both side edges of the shield main body 211, respectively, and the second shield 22 is covered over the ground terminals 213 of the first shield 21 and fixed with the shield main body 211 by guide posts 23. The combination of the first shielding piece 21 and the second shielding piece 22 is applied to the signal transmission module of the high-speed connector, so that the traditional grounding wire of the wiring area is omitted, the performance is improved, and the requirement of matching impedance is met.
In order to further connect and fix the second shielding member 22 and the first shielding member 21, the end portion of the second shielding member 22 connected with the first shielding member 21 is provided with more than two protruding teeth 25, and the protruding teeth 25 are provided with through holes matched with the guide posts, so that the installation and the fixation are facilitated.
In order to make the positional relationship between the second shield member 22 and the first shield member 21 more stable, the relative position dimension between the first shield member and the second shield member is satisfied, and the contact portion between the first shield member 21 and the second shield member 22 is further provided with two or more connection points 24 which are uniformly arranged. The connection method is not limited to laser welding, and ultrasonic friction welding, flip riveting and the like can be adopted for connection, so that the relative position between two parts can be positioned with high precision.
Fig. 4 shows a positional relationship between adjacent shielding members, and referring to fig. 5 and 6, the shielding members 20 on two adjacent signal transmission modules 10 are a shielding member a on which a first elastic structure 201 protruding toward the shielding member B is provided, and a shielding member B on which a ground terminal 213 overlapping the first elastic structure 201 on the shielding member a is provided, respectively; the first elastic structure 201 in the shielding assemblies 20 is mounted on the second shielding member 22, and meanwhile, the second shielding member 22 in each shielding assembly 20 and the ground terminal 213 of the first shielding member 21 form a Y-shaped structure from the side, which is more beneficial to shortening the reflow path and reducing the crosstalk between the differential pairs of signals.
Fig. 7 shows a schematic diagram of a signal transmission module, and referring to the schematic diagram, the signal transmission module 10 includes a plastic package housing 102 and differential signal terminals 101, the differential signal terminals 101 are arranged in pairs at intervals and are plastic-packaged in the plastic package housing 102, and a cavity 103 is provided on the plastic package housing 102 along a routing path of the differential signal terminals 101 and exposes the differential signal terminals 101. The plastic package shell 102 is provided with the cavity along the wiring path of the differential signal terminal, so that raw materials can be saved, and the module strength can be increased; meanwhile, the cavity is exposed from the wiring, so that air isolation can be performed to match impedance, and the signal transmission performance of the connector is improved.
As shown in fig. 8, there is a schematic structural view of the first shield member 21 in the shield assembly 20, in which the contact terminals 213 are provided in plural at intervals, and when the shield assembly is mounted on the signal transmission module, the contact terminals 213 on the first shield member 21 are located between the adjacent signal terminals 101, that is, the signal terminals 101 and the contact terminals 213 on the first shield member 21 are arranged alternately at intervals in order.
The second shield 22 is mounted above the ground terminal 213 of the first shield 21, the second shield 22 is divided into two parts, one part is a connection part with the first shield 21, the connection part is positioned at the upper part of the second shield 22, the other part is a contact part provided with the first elastic structure 201 to make contact with other structures, the contact part is positioned at the lower part of the second shield 22, and the connection part and the contact part are not in the same plane; the upper portion of the second shield 22 is fixed to the shield main body 211 of the first shield 21 by wire studs and other connection means, which may be laser welding, ultrasonic friction welding, a flip-rivet process, etc., and the lower portion (i.e., the contact portion) of the second shield 22 is located above the ground terminals 213 of the first shield 21 while the number of the first elastic structures 201 on the second shield 22 is identical to and one-to-one corresponding to the number of the ground terminals 213 in the adjacent shield assembly.
As shown in fig. 9, a plurality of strip-shaped through grooves 221 are disposed at intervals on the contact portion of the second shielding member 22, one end of the first elastic structure 201 is connected to the edge of the strip-shaped through groove 221, and the other end of the first elastic structure 201 faces and contacts the contact terminal 213 of the corresponding ground terminal 213, so as to achieve the purposes of shortening the reflow path and improving crosstalk between differential pairs.
In order to further shorten the return path and reduce crosstalk between differential pairs, two second elastic structures 223 with the same extending direction are further arranged on one side of each first elastic structure 201 on the second shielding piece 22, and the two second elastic structures 223 are respectively located in different strip-shaped through grooves 221; with respect to the second elastic structure, when the shielding assembly is applied to a connector, the second elastic structure 223 can contact with the U-shaped shielding member in the male terminal base, so as to contact with the U-shaped shielding member in the male terminal base, shorten the reflow path and reduce the signal crosstalk, and the protruding direction of the second elastic structure 223 on the second shielding member 22 is opposite to the protruding direction of the first elastic structure 201 on the second shielding member 22.
In addition, a protruding frame 222 is provided at a side edge of the second shielding member 22, the protruding frame 222 is in contact with a side edge of the second shielding member 22 in the adjacent shielding member 20, and the protruding frame 222 on the adjacent shielding member 20 is installed in a reverse position, which mainly acts to shorten the reflow path and reduce crosstalk between 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 described in general terms in the present application. 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 invention.
Although the invention 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 of this application. 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 (6)
1. A shielding assembly for a high-speed connector, comprising: the novel shielding assembly comprises a first shielding piece (21) and a second shielding piece (22), wherein the first shielding piece (21) and the second shielding piece (22) are fixed through a guide post (23), the shielding assembly is installed on a signal transmission module (10), the first shielding piece (21) comprises a shielding piece main body (211) which is matched with the signal transmission module (10) in size, and a grounding terminal (213) and a grounding tail (212) which are respectively arranged at two adjacent side edges of the shielding piece main body (211), the second shielding piece (22) covers the grounding terminal (213) of the first shielding piece (21) and is fixed with the shielding piece main body (211) through the guide post (23), and a Y-shaped connecting structure is formed between the second shielding piece (22) and the grounding terminal (213) in the first shielding piece (21); the second shielding piece (22) is provided with a first elastic structure (201) corresponding to the grounding terminal (213) of the first shielding piece (21), the first elastic structure (201) on the second shielding piece (22) is overlapped with the grounding terminal (213) in the first shielding piece (21) on the adjacent signal transmission module (10), the grounding terminals (213) are arranged at intervals and are respectively positioned between the adjacent signal terminals (101), the number of the first elastic structures (201) is consistent with the number of the grounding terminals (213) and corresponds to each other one by one, one side of each first elastic structure (201) on the second shielding piece (22) is further provided with two second elastic structures (223) with the same extending direction, and the two second elastic structures (223) are respectively positioned in different strip-shaped through grooves (221).
2. The shielding assembly for a high-speed connector of claim 1, wherein: the end part of the second shielding piece (22) connected with the first shielding piece (21) is provided with more than two protruding teeth (25), and the protruding teeth (25) are provided with through holes matched with the guide posts (23).
3. The shielding assembly for a high-speed connector of claim 2, wherein: the contact part of the first shielding piece (21) and the second shielding piece (22) is also provided with more than two connection points (24) which are uniformly distributed.
4. The shielding assembly for a high-speed connector of claim 1, wherein: a raised frame (222) is arranged at the side edge of the second shielding piece (22), the raised frame (222) is in contact with the side edge of the second shielding piece (22) in the adjacent shielding assembly (20), and the installation positions of the raised frames (222) on the adjacent shielding assemblies (20) are opposite.
5. A modular structure for a high-speed connector, characterized by: a shielding assembly according to any one of claims 1 to 4, comprising a signal transmission module (10) and a shielding assembly according to any one of claims 1 to 4 mounted on the signal transmission module (10).
6. A high-speed connector, characterized by: a shielding assembly according to any one of claims 1 to 4, comprising a signal transmission module (10) and a shielding assembly according to any one of claims 1 to 4 mounted on the signal transmission module (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910253102.7A CN109768438B (en) | 2019-03-29 | 2019-03-29 | Shielding assembly for high-speed connector, module structure and high-speed connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910253102.7A CN109768438B (en) | 2019-03-29 | 2019-03-29 | Shielding assembly for high-speed connector, module structure and high-speed connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109768438A CN109768438A (en) | 2019-05-17 |
| CN109768438B true CN109768438B (en) | 2024-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910253102.7A Active CN109768438B (en) | 2019-03-29 | 2019-03-29 | Shielding assembly for high-speed connector, module structure and high-speed connector |
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| Country | Link |
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| CN (1) | CN109768438B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531417A (en) * | 2019-09-17 | 2021-03-19 | 庆虹电子(苏州)有限公司 | Transmission sheet of electric connector |
| CN112164936A (en) * | 2020-09-27 | 2021-01-01 | 上海航天科工电器研究院有限公司 | High transmission rate signal module structure |
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| CN106229764A (en) * | 2015-06-02 | 2016-12-14 | 泰科电子公司 | There is the electric connector of ground shield |
| CN109088200A (en) * | 2018-08-27 | 2018-12-25 | 四川华丰企业集团有限公司 | Multi-contact electric connector and electronic equipment |
| CN109088272A (en) * | 2018-08-27 | 2018-12-25 | 四川华丰企业集团有限公司 | Electric connector and electronic equipment |
| CN109524849A (en) * | 2019-01-09 | 2019-03-26 | 四川华丰企业集团有限公司 | Metal shielding board for high-speed differential signal connector |
| CN209448145U (en) * | 2019-03-29 | 2019-09-27 | 四川华丰企业集团有限公司 | For the shield assembly of high speed connector, modular structure and high speed connector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY148711A (en) * | 2007-06-20 | 2013-05-31 | Molex Inc | Mezzanine-style connector with serpentine ground structure |
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2019
- 2019-03-29 CN CN201910253102.7A patent/CN109768438B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007036812A (en) * | 2005-07-28 | 2007-02-08 | Smk Corp | Shield and dustproof structure of connector for camera module |
| CN103503247A (en) * | 2010-12-13 | 2014-01-08 | Fci公司 | Shielded connector assembly |
| CN106229764A (en) * | 2015-06-02 | 2016-12-14 | 泰科电子公司 | There is the electric connector of ground shield |
| CN204809560U (en) * | 2015-06-10 | 2015-11-25 | 泰科电子(上海)有限公司 | Connector module and connector component |
| CN109088200A (en) * | 2018-08-27 | 2018-12-25 | 四川华丰企业集团有限公司 | Multi-contact electric connector and electronic equipment |
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| CN109768438A (en) | 2019-05-17 |
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Address after: No. 118, Sanjiang Avenue, economic development zone, Mianyang, Sichuan 621000 Applicant after: Sichuan Huafeng Technology Co.,Ltd. Address before: No. 118, Sanjiang Avenue, economic development zone, Mianyang, Sichuan 621000 Applicant before: SICHUAN HUAFENG ENTERPRISE GROUP Co.,Ltd. |
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