CN220985036U - Electric connector and combination thereof - Google Patents
Electric connector and combination thereof Download PDFInfo
- Publication number
- CN220985036U CN220985036U CN202322569494.2U CN202322569494U CN220985036U CN 220985036 U CN220985036 U CN 220985036U CN 202322569494 U CN202322569494 U CN 202322569494U CN 220985036 U CN220985036 U CN 220985036U
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- grounding
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- elastic
- slot
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- 238000005452 bending Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 description 7
- 239000002184 metal Substances 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- MTLMVEWEYZFYTH-UHFFFAOYSA-N 1,3,5-trichloro-2-phenylbenzene Chemical compound ClC1=CC(Cl)=CC(Cl)=C1C1=CC=CC=C1 MTLMVEWEYZFYTH-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
An electric connector and a combination thereof, wherein the electric connector comprises an insulating body provided with a slot, terminals and a grounding piece, the terminals are arranged on two opposite sides of the slot and comprise a plurality of signal terminal pairs and a plurality of grounding terminals, and the terminals comprise a fixing part fixed on the insulating body, an elastic part extending upwards from the fixing part and a contact part positioned at the tail end of the elastic part; the grounding piece comprises a ridge part, a plurality of shielding parts, a plurality of first grounding parts and a plurality of second grounding parts, wherein the shielding parts extend from the ridge part, the shielding parts are positioned on the outer sides of the corresponding signal terminal pairs, the first grounding parts and the second grounding parts extend along the extending direction of the corresponding grounding terminals, the first grounding parts are abutted against the retaining parts of the grounding terminals, the second grounding parts extend to the elastic parts of the grounding terminals, and when the elastic parts are actuated to move outwards, the elastic parts are abutted against the corresponding second grounding parts. The grounding piece can play roles of grounding and signal shielding, and a common mode choke structure can be formed between two grounding parts and corresponding grounding terminals, so that the purpose of eliminating differential mode crosstalk is achieved.
Description
[ Field of technology ]
The utility model relates to an electric connector and a combination thereof.
[ Background Art ]
The transmission rate of the electric connector which is currently being developed is higher and higher, and the transmission bandwidth of some connectors is up to 128Gbps, however, during high-speed signal transmission, external interference signals and self differential mode signal crosstalk have great influence on the signal transmission quality and speed.
Accordingly, there is a need for an improved electrical connector that solves the above problems.
[ utility model ]
The main object of the present utility model is to provide an electrical connector and a combination thereof, which has good high frequency performance.
In order to solve the technical problems, the utility model adopts the following technical scheme: an electric connector comprises an insulating body, at least one row of terminals and a grounding piece, wherein the insulating body comprises a longitudinal slot, the terminals are arranged on two opposite sides of the slot, one row of terminals comprises a plurality of signal terminal pairs and a plurality of grounding terminals, and each terminal comprises a fixing part fixed on the insulating body, an elastic part extending upwards from the fixing part and a contact part which is positioned at the tail end of the elastic part and protrudes into the slot in an arc shape; the grounding piece comprises a ridge part, a plurality of shielding parts, a plurality of first grounding parts and a plurality of second grounding parts, wherein the shielding parts extend from the ridge part, the shielding parts are located at the outer sides of the corresponding signal terminal pairs one by one, the first grounding parts and the second grounding parts extend along the extending direction of the corresponding same grounding terminal, the first grounding parts are abutted to the fixing parts of the corresponding grounding terminals, the second grounding parts extend to the elastic parts of the corresponding grounding terminals, and when the elastic parts are actuated to move outwards, the elastic parts are abutted to the corresponding second grounding parts.
Preferably, the elastic portion extends obliquely into the slot, the second grounding portion abuts against a position of the elastic portion close to the contact portion, and the first grounding portion is welded to the holding portion of the grounding terminal.
Preferably, the shielding portion is formed by a ridge portion extending vertically in the up-down direction.
Preferably, the first grounding part is formed by extending a ridge vertically downwards and bending and extending towards the direction of the fixing part; the second grounding part is formed by extending the ridge part vertically upwards and bending and extending the ridge part towards the elastic part.
Preferably, the vertical portions, the ridge portions, and the shielding portions of the first and second grounding portions are located in the same plane.
Preferably, the electrical connector comprises two rows of the terminals, the insulating body comprises two insulating strips for respectively holding the two rows of the terminals and an insulating shell coated on the outer sides of the two insulating strips, and the ridge part is clamped between the corresponding insulating strips and the insulating shell.
Preferably, the elastic portion extends upward out of the insulating strip and extends obliquely into the slot, the shielding portion extends vertically upward and shields at least part of the elastic portion corresponding to the signal terminal pair, and an upper end of the shielding portion is lower than an upper end of the second grounding portion.
Preferably, the outer side of the insulating strip is provided with a containing groove, the grounding piece is positioned in the containing groove, and the lower end of the grounding piece is abutted to the bottom of the containing groove.
Preferably, the width of the second grounding portion is larger than the width of the contact portion and smaller than the width of the elastic portion in the longitudinal direction.
In order to solve the technical problems, the utility model also provides an electric connector assembly, which comprises a first connector, a second connector and a PCB board, wherein the first connector comprises an insulating body, two rows of terminals and two grounding pieces, the insulating body comprises a first slot, the two rows of terminals are arranged on two opposite sides of the slot and comprise a signal terminal pair and a grounding terminal, and the terminals comprise a fixing part fixed on the insulating body, an elastic part extending upwards from the fixing part, a contact part which is positioned at the tail end of the elastic part and protrudes into the slot in an arc shape and a pin extending downwards from the fixing part; the second connector comprises a second slot, the PCB is provided with a first side edge which can be matched with the first slot and a second side edge which can be matched with the second slot, and the first side edge is perpendicular to the second side edge; each grounding piece is located on the outer side of the terminal far away from the first slot, the grounding piece comprises a ridge, a plurality of shielding parts, a plurality of first grounding parts and a plurality of second grounding parts, the shielding parts extend from the ridge and are opposite to the corresponding signal terminal pairs, the first grounding parts and the second grounding parts extend along the extending direction of the same grounding terminal, the first grounding parts are abutted to the fixing parts of the corresponding grounding terminals, and the second grounding parts extend to the outer sides of the elastic parts of the corresponding grounding terminals and are abutted to the second grounding parts when the elastic parts are actuated to move outwards.
The electric connector of the utility model can not only ground the grounding terminal through the grounding part, but also shield the signal terminal through the shielding part, thereby effectively improving the signal crosstalk; in addition, one of the two grounding parts can be in contact with and electrically connected with the elastic part of the grounding terminal, and the other grounding part is in contact with and electrically connected with the fixing part of the same grounding terminal, so that a common mode choke structure can be formed between the two grounding parts and the corresponding grounding terminal, the purpose of eliminating differential mode crosstalk is achieved, and the high-frequency transmission performance of the connector is improved.
[ Description of the drawings ]
Fig. 1 is a perspective view of an electrical connector assembly according to the present utility model.
Fig. 2 is an exploded perspective view of fig. 1.
Fig. 3 is another exploded perspective view of fig. 1.
Fig. 4 is an exploded perspective view of the first connector of fig. 1.
Fig. 5 is a further exploded perspective view of fig. 4.
Fig. 6 is a perspective view of the two-terminal module of fig. 5.
Fig. 7 is a further exploded perspective view of fig. 6, with the ground member separated from the terminal module.
Fig. 8 is a cross-sectional view of the first connector.
Fig. 9 is a cross-sectional view of the first connector in which the PCB board is inserted.
Fig. 10 is an exploded perspective view of the second connector of fig. 1.
[ Reference numerals ]
First row of terminals 124 of electrical connector assembly 1000
Second row of terminals 125 of first connector 10
Grounding member 13 of insulating body 11A, 21
Ridge 130 of insulating shell 11
Slot 110, 220, 221 shielding portion 131
First insulating strip 111 first grounding portion 132
Second grounding portion 133 of second insulating strip 112
Accommodation groove 114 second connector 20
Metal shell 23 of terminal 12, 22
Signal terminal pair 12S mounting leg 231
Ground terminal 12G notch 232
The holding portion 120 includes a protrusion 233
Elastic portion 121 PCB plate 30
First side 31 of contact 122
Second side 32 of pin 123
The utility model will be further described in the following detailed description in conjunction with the above-described figures.
[ Detailed description ] of the invention
Referring to fig. 1-3, the present utility model discloses an electrical connector assembly 100 for electrically connecting an external component (not shown) such as a memory module to an external circuit board (not shown), comprising a first connector 10, a second connector 20, and a PCB 30 interposed between the first and second connectors 10, 20 for electrical connection.
Referring to fig. 3, the first connector 10 includes an insulative housing 11A and two rows of terminals 12, and a side of a pcb 30 is plugged into the first connector 10. With further reference to fig. 4-5, the terminals 12 of the first connector 10 are formed into terminal modules, and then assembled into the insulating housing 11 to form the insulating body 11A, and two grounding members 13 are installed between the insulating body 11A and the terminal modules. The insulating housing 11 includes a longitudinal slot 110, and two rows of terminals 12 are disposed on opposite sides of the slot 110, each row of terminals including a plurality of signal terminal pairs 12S and a plurality of ground terminals 12G. Referring to fig. 7, the terminal 12 includes a holding portion 120 held by the insulating body 11A, an elastic portion 121 extending upward from the holding portion 120, a contact portion 122 located at the end of the elastic portion 121 and protruding into the slot 110 in an arc shape, and a pin 123 extending downward from the holding portion 120, wherein the pin 123 is used for soldering to the external circuit board.
Referring to fig. 7, each grounding member 13 includes an elongated ridge 130, a plurality of shielding portions 131 extending from the ridge 130, a plurality of first grounding portions 132, and a plurality of second grounding portions 133, and, in conjunction with fig. 5-6, the shielding portions 131 are located on the outer sides of the signal terminal pairs 12S, and in conjunction with fig. 8, the first grounding portions 132 and the second grounding portions 133 extend along the extending direction of the corresponding ground terminals 12G, the first grounding portions 132 abut against the holding portions 120 of the ground terminals 12G, the second grounding portions 133 extend to the elastic portions 121 of the corresponding ground terminals 12G, and, as shown in fig. 9, after the first side 31 of the PCB board 30 is inserted into the slots 110, the second grounding portions 133 are actuated to abut against the elastic portions 121 of the corresponding ground terminals. Preferably, the first grounding portion 132 is fixed to the holding portion 120 of the grounding terminal 12G by welding, so that the grounding member 13 can be fixed to the grounding terminal 12G relatively stably. In this way, the signal transmission may be performed in such a manner that the first path is that the electrical signal is transmitted from the contact portion 122 down to the elastic portion 121 and then to the holding portion 120, and then from the holding portion 120 to the first grounding portion 132 and then to the ridge portion 130. The second path is that the electrical signal is transmitted from the contact portion 122 to the second grounding portion 133 and then to the ridge portion 130, and the two transmission paths can form a common mode choke structure, so as to achieve the purpose of eliminating differential mode crosstalk, as shown by the arrow in fig. 9. In the present embodiment, the elastic portion 121 extends obliquely in the slot 110, and the second grounding portion 133 can abut against a position of the elastic portion 121 near the contact portion 122 after the elastic portion 121 is elastically deformed. In order to facilitate the contact between the second grounding portion 133 and the elastic portion 121, as shown in fig. 7, the width of the elastic portion 121 is greater than the width of the second grounding portion 133 in the longitudinal direction of the socket, so that the elastic portion 121 can be deformed outward and then can be conveniently contacted with the second grounding portion 133. In addition, in order to further secure the strength of the second ground portion 133, the width of the second ground portion 133 is larger than the width of the contact portion 122.
Referring to fig. 7, in the present embodiment, the second grounding portion 133 is formed by extending the ridge portion 130 vertically upwards and then bending and extending to the elastic portion 121; the first grounding portion 132 is formed by extending the ridge 130 vertically downward and bending the retaining portion 120, the shielding portion 131 is formed by extending the ridge 130 vertically in the up-down direction, and the vertical extending portions of the first and second grounding portions 132, 133 and the shielding portion 131 are located in the same plane. In this embodiment, preferably, the shielding portion 131 extends vertically upward and shields at least part of the elastic portion 121 corresponding to the signal terminal pair 12S, and the upper end of the shielding portion 131 is lower than the upper end of the first grounding portion 132. In this embodiment, in order to facilitate the processing of the grounding member 13, the grounding member 13 may be integrally formed of a metal material.
Referring to fig. 5 to 6, the two rows of terminals 12 include a row of first terminals 124 and a row of second terminals 125, wherein one row of the first terminals 124 is fixed on the first insulating strip 111 to form a terminal module, one row of the second terminals 125 is fixed on the second insulating strip 112 to form a second terminal module, and the two terminal modules are assembled with each other and assembled to the insulating housing 11 to form the insulating body 11A. The ridge 130 is sandwiched between the corresponding insulating strips 111, 112 and the insulating housing 11. The outer sides of the first and second insulating strips 111 and 112 are provided with a receiving groove 114, the grounding member 13 is located in the receiving groove 114, and the lower end of the grounding member 13 abuts against the bottom of the receiving groove 114, so that the grounding member 13 is stably supported on the corresponding insulating strips 111 and 112 in the up-down direction, preferably, the lower end of the shielding portion 131 abuts against the bottom of the receiving groove 114, as best shown in fig. 9.
In this embodiment, the grounding members 13 are disposed on the outer sides of the first and second terminal modules, and the two terminal modules are identical or symmetrically disposed, and the grounding members 13 disposed on both sides of the two terminal modules are also identical or symmetrically disposed; of course, in other embodiments, the grounding member 13 may be disposed only outside one of the terminal modules. Referring to fig. 4, the first connector 10 includes a high-speed transmission area a and a low-speed transmission area B, and the ground 13 is located outside the terminal 12 corresponding to the high-speed transmission area a.
Referring to fig. 1, 2 and 10, the second connector 20 includes an insulative housing 21 and two rows of terminals 22, the insulative housing 22 has a slot 221 at a front end thereof, a slot 220 at a rear end thereof, the two rows of terminals 22 are disposed at opposite sides of the slots 221, 220, a second side 32 of the PCB board is inserted into the slot 220, a first side 31 is inserted into the slot 110, so as to electrically connect the first and second electrical connectors 10, 20, and the first side 31 is perpendicular to the second side 32. The slot 221 of the second connector 20 is used for inserting an external component, such as a memory module, so that the connection between the external component, such as the memory module, and the circuit board is achieved through the electrical connector assembly 100. The outer part of the insulating body 21 of the second connector is wrapped with a metal shell 23, the metal shell is provided with mounting feet 231 which are staggered with each other, the bottom surface of the mounting feet is provided with a notch 232, and the top surface is provided with an upward protruding part 233 for fixing.
The main improvement of the first connector 10 is the additional grounding member 13, in this embodiment, the first connector is used for being mated with the PCB 30, but not limited to this embodiment, the first connector may be a separate electrical connector separately disposed on an external circuit board or a main circuit board, and may be directly mated with a EDSFF module, for example.
The foregoing is merely illustrative of the preferred embodiments of the present utility model, and is not to be construed as limiting the scope of the utility model. All simple and equivalent changes and modifications made in accordance with the claims and the specification of this utility model shall fall within the scope of the patent covered by this utility model.
Claims (10)
1. An electric connector comprises an insulating body, at least one row of terminals and a grounding piece, wherein the insulating body comprises a longitudinal slot, the terminals are arranged on two opposite sides of the slot, one row of terminals comprises a plurality of signal terminal pairs and a plurality of grounding terminals, and each terminal comprises a fixing part fixed on the insulating body, an elastic part extending upwards from the fixing part and a contact part which is positioned at the tail end of the elastic part and protrudes into the slot in an arc shape; the method is characterized in that: the grounding piece comprises a ridge part, a plurality of shielding parts, a plurality of first grounding parts and a plurality of second grounding parts, wherein the shielding parts extend from the ridge part, the shielding parts are located at the outer sides of the corresponding signal terminal pairs one by one, the first grounding parts and the second grounding parts extend along the extending direction of the corresponding same grounding terminal, the first grounding parts are abutted to the fixing parts of the corresponding grounding terminals, the second grounding parts extend to the elastic parts of the corresponding grounding terminals, and when the elastic parts are actuated to move outwards, the elastic parts are abutted to the corresponding second grounding parts.
2. The electrical connector of claim 1, wherein: the elastic part extends obliquely into the slot, the second grounding part is abutted against the position, close to the contact part, of the elastic part, and the first grounding part is welded to the fixing part of the grounding terminal.
3. The electrical connector of claim 1, wherein: the shielding portion is formed by a ridge portion extending vertically in the up-down direction.
4. The electrical connector of claim 1, wherein: the first grounding part is formed by extending a ridge part vertically downwards and bending and extending towards the direction of the fixing part; the second grounding part is formed by extending the ridge part vertically upwards and bending and extending the ridge part towards the elastic part.
5. The electrical connector of claim 4, wherein: the vertical parts, the ridge parts and the shielding parts of the first grounding part and the second grounding part are positioned in the same plane.
6. The electrical connector of claim 1, wherein: the electric connector comprises two rows of terminals, the insulating body comprises two insulating strips for respectively fixing the two rows of terminals and an insulating shell coated on the outer sides of the two insulating strips, and the ridge part is clamped between the corresponding insulating strips and the insulating shell.
7. The electrical connector of claim 6, wherein: the elastic part extends upwards out of the insulating strip and extends obliquely into the slot, the shielding part extends vertically upwards and shields at least part of the elastic part corresponding to the signal terminal pair, and the upper end of the shielding part is lower than the upper end of the second grounding part.
8. The electrical connector of claim 6, wherein: the outer side of the insulating strip is provided with a containing groove, the grounding piece is positioned in the containing groove, and the lower end of the grounding piece is abutted to the bottom of the containing groove.
9. The electrical connector of claim 1, wherein: in the longitudinal direction, the width of the second grounding portion is greater than the width of the contact portion and less than the width of the elastic portion.
10. An electric connector combination comprises a first connector, a second connector and a PCB (printed circuit board), wherein the first connector comprises an insulating body, two rows of terminals and two grounding pieces, the insulating body comprises a first slot, the two rows of terminals are arranged on two opposite sides of the slot and comprise signal terminal pairs and grounding terminals, and the terminals comprise a fixing part fixed on the insulating body, an elastic part extending upwards from the fixing part, a contact part which is positioned at the tail end of the elastic part and protrudes into the slot in an arc shape and a pin extending downwards from the fixing part; the second connector comprises a second slot, the PCB is provided with a first side edge which can be matched with the first slot and a second side edge which can be matched with the second slot, and the first side edge is perpendicular to the second side edge; the method is characterized in that: each grounding piece is located on the outer side of the terminal far away from the first slot, the grounding piece comprises a ridge, a plurality of shielding parts, a plurality of first grounding parts and a plurality of second grounding parts, the shielding parts extend from the ridge and are opposite to the corresponding signal terminal pairs, the first grounding parts and the second grounding parts extend along the extending direction of the same grounding terminal, the first grounding parts are abutted to the fixing parts of the corresponding grounding terminals, and the second grounding parts extend to the outer sides of the elastic parts of the corresponding grounding terminals and are abutted to the second grounding parts when the elastic parts are actuated to move outwards.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322569494.2U CN220985036U (en) | 2023-09-21 | 2023-09-21 | Electric connector and combination thereof |
| TW113209868U TWM668386U (en) | 2023-09-21 | 2024-09-11 | Electrical connector and assemblyof the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322569494.2U CN220985036U (en) | 2023-09-21 | 2023-09-21 | Electric connector and combination thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220985036U true CN220985036U (en) | 2024-05-17 |
Family
ID=91055157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322569494.2U Active CN220985036U (en) | 2023-09-21 | 2023-09-21 | Electric connector and combination thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN220985036U (en) |
| TW (1) | TWM668386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118399142A (en) * | 2024-06-06 | 2024-07-26 | 深圳市兴万联电子有限公司 | High-speed communication electric connector |
-
2023
- 2023-09-21 CN CN202322569494.2U patent/CN220985036U/en active Active
-
2024
- 2024-09-11 TW TW113209868U patent/TWM668386U/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118399142A (en) * | 2024-06-06 | 2024-07-26 | 深圳市兴万联电子有限公司 | High-speed communication electric connector |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM668386U (en) | 2025-04-01 |
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