CN201868687U - Electric connector - Google Patents

Abstract

The utility model discloses an electrical connector, which can be docked with a docking plug along a docking direction. A terminal module, a row of second terminal modules and grounding sheets, the first terminal module includes a first sheet and a number of first terminals fixed on the first sheet, the second terminal module includes a first Two pieces and a number of second terminals fixed on the second piece, wherein, the insulating body is provided with a first slot opened horizontally and vertically, a second slot parallel to the first slot, and a second slot located in the first slot. , The spacer between the second slots, the spacer is provided with a middle slot, the first terminals of a row of first terminal modules are all arranged in the first slot, and the second terminals of a row of second terminal modules are all It is arranged in the second slot, and the ground sheet is arranged in the middle slot and is located between a row of first terminal modules and a row of second terminal modules.

Description

electrical connector

【Technical field】

The utility model relates to an electrical connector, in particular to a ground sheet for reducing crosstalk interference between terminals of an SFP (small form-factor pluggable) connector.

【Background technique】

CXP (C eXtended-capability Pluggable form-factor) connector is a kind of connector in SFP connector. The insulating body of the CXP connector is usually provided with a first slot, a second slot and a spacer between the first and second slots. The first upper and lower terminals of a row of first terminal modules are all configured in the first slot. The second upper and lower terminals of a row of second terminal modules are all configured in the second slot. The shielding cover of the CXP connector is generally made of cast iron.

US Patent No. 7572156 published on August 11, 2009 and US Patent No. 7674133 published on March 9, 2010 disclose a CXP connector in an SFP. The CXP connector includes an insulating body, a number of chips accommodated in the insulating body and a shielding cover set on the insulating body. A pair of first terminals aligned up and down and a pair of second terminals aligned up and down are fixed on each chip.

However, the disadvantage of this design is that crosstalk interference is easily generated between a pair of first terminals and a pair of second terminals. Since a pair of first terminals and a pair of second terminals are disposed on the same wafer, it is difficult to arrange a ground plate between the first and second terminals on the wafer. Therefore, it is difficult to suppress the crosstalk interference between the first and second terminals of the CXP connector thus arranged.

US Patent No. 6712646 published on March 30, 2004 discloses a backplane connector. The socket of the backplane connector includes an insulating body, upper and lower wafers accommodated in the insulating body, a vertically arranged shielding piece, a horizontally arranged grounding piece and a shielding cover set on the insulating body. A pair of upper terminals are fixed on the upper chip. A pair of lower terminals are fixed on the lower chip. An insertion slot for inserting the shielding sheet is provided in the middle of the upper wafer. The lower chip is arranged on one side of the shielding sheet. Such arrangement makes it impossible to align the upper and lower wafers along the butt joint direction. Slots are arranged on the shielding sheet. The ground sheet includes a horizontal part and a vertical part provided with matching grooves. The grounding piece is fixed on the shielding piece through the cooperation of its matching groove and the slot of the shielding piece. The vertical part of the ground sheet is located between the upper and lower chips to play a shielding role. The crosstalk interference between the upper and lower terminals is effectively controlled.

However, this design is the application of the ground sheet on the backplane connector, and does not disclose the feasibility of the application of the ground sheet on the SFP connector. This design needs to set up the shielding sheet arranged vertically to hold the grounding sheet. Simultaneously arranging the shielding sheet and the grounding sheet arranged vertically makes the structure of the connector complex. In addition, misalignment of the upper and lower wafers complicates the assembly process.

【Content of utility model】

The technical problem to be solved by the utility model is to apply the ground plate to the SFP connector, thereby obtaining an SFP connector that can effectively reduce crosstalk interference between terminals and is easy to manufacture.

In order to achieve the above-mentioned technical problems to be solved, the utility model provides an electrical connector, which can be docked with a docking plug along the docking direction. A row of first terminal modules, a row of second terminal modules, and a grounding sheet arranged in the transverse direction, the first terminal module includes a first sheet body and a plurality of first terminals held on the first sheet body, The second terminal module includes a second sheet body and a plurality of second terminals held on the second sheet body, wherein the insulating body is provided with a first slot opened horizontally and vertically, parallel to the first slot The second slot of the second slot and the spacer between the first and second slots, the spacer is provided with a middle groove, the first terminals of a row of first terminal modules are all arranged in the first slot, and the row of first terminal modules The second terminals of the two-terminal modules are all arranged in the second slots, and the ground sheet is arranged in the middle slot and is located between a row of first terminal modules and a row of second terminal modules.

Compared with the prior art, the electric connector of the utility model has the following advantages: the utility model applies the ground plate to the SFP connector. The arrangement of the ground sheet can effectively reduce the crosstalk interference between the first terminal and the second terminal. The ground sheet is directly inserted between the first sheet and the second sheet so that the structure of the electrical connector is simple and easy to manufacture, and at the same time the cost can be saved.

【Description of drawings】

Fig. 1 is a three-dimensional assembly diagram of the electric connector and the mother circuit board of the present invention.

FIG. 2 is a partially exploded view of the electrical connector shown in FIG. 1 .

FIG. 3 is a partially exploded view of the receptacle of the electrical connector shown in FIG. 2 .

FIG. 4 is a partially exploded view of FIG. 3 from another angle.

FIG. 5 is a three-dimensional exploded view of a first terminal module, a second terminal module and the ground plate in the socket shown in FIG. 3 .

Fig. 6 is a side view of the first and second terminal modules shown in Fig. 3 after being assembled with the grounding sheet.

[Description of main component symbols]

Electrical Connector 100 Socket 10

Insulation body 1 first slot 11

First upper terminal slot 111 First lower terminal slot 112

Second slot 12 Second upper terminal slot 121

Second lower terminal slot 122 Spacer part 13

Middle tank 131 Storage tank 14

Butt end 15 inner wall 16

side wall 17 upper wall 18

The first terminal module 21 the first body 210

First upper terminal 21a First lower terminal 21b

First contact part 211 First cantilever 212

First holding part 213 First bending part 2131

First tail 214 Second terminal module 22

Second body 220 Second upper terminal 22a

Second lower terminal 22b second contact part 221

The second cantilever 222 The second holding part 223

The second bending part 2231 The second tail part 224

Insert space 23 ground lug 3

Horizontal part 31 Bending part 32

Extension 33 Grounding leg 34

Shielding cover 4 protrusion 41

Main body 42 Containment space 43

Opening 44 Masking sheet 5

Mother board 800

【Detailed ways】

Please refer to FIG. 1 and FIG. 2 , the present invention discloses an electrical connector 100 , which is mounted on a mother circuit board 800 and can be docked with a mating connector (not shown) along a mating direction. In this embodiment, the electrical connector 100 is a CXP connector. The electrical connector 100 includes: a socket 10 , a shielding cover 4 accommodating the socket 10 , and a shielding piece 5 sleeved on the shielding cover 4 .

Referring to Figures 2 to 4, the socket 10 includes an insulating body 1, a row of first terminal modules 21 and a row of second terminal modules accommodated in the insulating body 1 and disposed along a transverse direction perpendicular to the mating direction. 22 and the ground sheet 3 integrally stamped and formed by the metal sheet.

The front end of the insulating body 1 is provided with a butt end 15 , an upper wall 18 , an inner wall 16 , a pair of side walls 17 and a receiving groove 14 surrounded by the upper wall 18 , the inner wall 16 , and a pair of side walls 17 . The insulating body 1 is further provided with a first slot 11 that is opened vertically and horizontally and extends forward to the butt end 15, a second slot 12 parallel to the first slot 11, and a second slot 12 located between the first slot 11 and the second slot. 12 with a spacer 13 between them. A row of first upper terminal slots 111 and a row of first lower terminal slots 112 are disposed in the first slot 11 . A row of second upper terminal slots 121 and a row of second lower terminal slots 122 are disposed in the second slot 12 . The first upper and lower terminal grooves 111 , 112 and the second upper and lower terminal grooves 121 , 122 penetrate through the inner wall 16 backwards and form holes on the inner wall 16 . A middle groove 131 is formed on the spacer portion 13 . The middle groove 131 extends forward to the abutting end 15 , and passes through the inner wall 16 backward to communicate with the receiving groove 14 .

As shown in FIGS. 3 to 6 , the first terminal module 21 has a first sheet 210 and a pair of first terminals (not labeled) fixed on the first sheet 210 . The pair of first terminals includes a first upper terminal 21a and a first lower terminal 21b. The second terminal module 22 has a second sheet 220 and a pair of second terminals (not labeled) fixed on the second sheet 220 . The pair of second terminals includes a second upper terminal 22a and a second lower terminal 22b.

The first upper and lower terminals 21a, 21b both have a first holding portion 213 fixed on the first sheet 210, a first cantilever 212 extending from the first holding portion 213 and leaving the first sheet 210, and a first arm 212 extending from the first sheet 210. The first contact portion 211 at the front end of the cantilever 212 and the first tail portion 214 extending downward from the first holding portion 213 . The first holding portion 213 is provided with a first bending portion 2131 bent at two same angles continuously. The first contact portions 211 of the first upper and lower terminals 21a, 21b are arranged facing each other. The second upper and lower terminals 22a, 22b all have a second holding portion 223 fixed on the second sheet 220, a second cantilever 222 extending from the second holding portion 223 and away from the second sheet 220, and located on the second The second contact portion 221 at the front end of the cantilever 222 and the second tail portion 224 extending downward from the second holding portion 223 . The second holding portion 223 is provided with a second bending portion 2231 bent at two same angles continuously. The second contact portions 221 of the second upper and lower terminals 22a, 22b are arranged facing each other.

Referring to FIG. 5 , the first cantilever 212 of the first upper terminal 21 a and the first cantilever 212 of the first lower terminal 21 b are bent at an angle in opposite directions. Referring to FIG. 4 , it can be seen that the first contact portion 211 of the first upper terminal 21 a and the first contact portion 211 of the first lower terminal 21 b are offset along the lateral direction through the arrangement of openings on the inner wall 16 . The same arrangement makes the second upper terminal 22 a and the second lower terminal 22 b on the second sheet 220 offset from each other along the lateral direction. The first contact portion 211 of the first upper terminal 21a on the first sheet 210 is aligned with the second contact portion 221 of the second upper terminal 22a on the second sheet 220 along the vertical direction. The first contact portion 211 of the first lower terminal 21b on the first sheet 210 is aligned with the second contact portion 221 of the second lower terminal 22b on the second sheet 220 along the vertical direction. This allows for intermateability with industry standard mating plugs.

The ground plate 3 includes a horizontal portion 31 , a bent portion 32 bent from the horizontal portion 31 , an extension portion 33 extended downward from the bent portion 32 , and a plurality of ground legs 34 extended downward from the bottom of the extended portion 33 .

When assembling the socket 10 , the first terminal module 21 , the second terminal module 22 and the ground piece 3 are partly accommodated in the receiving groove 14 . The first upper terminal 21 a of the first terminal module 21 is inserted into the first upper terminal groove 111 , and the first lower terminal 21 b is inserted into the first lower terminal groove 112 . The second upper terminal 22 a of the second terminal module 22 is inserted into the second upper terminal groove 121 , and the second lower terminal 22 b is inserted into the second lower terminal groove 122 . The horizontal portion 31 of the ground piece 3 is fixed in the middle groove 131 . Each ground pin 34 of the ground plate 3 is located between the first tail portion 214 and the corresponding second tail portion 224 .

FIG. 3 and FIG. 6 disclose the disposition of several terminal modules 2 and grounding plates 3 in the insulating housing 1 . The row of first terminal modules 21 is close to the row of second terminal modules 22 and separated from the row of second terminal modules 22 by an insertion space 23 for accommodating the grounding sheet 3 . The middle groove 131 also constitutes a part of the insertion space 23 . Each first piece 210 is aligned with a corresponding second piece 220 along the butt joint direction.

The plurality of first sheets 210 are stacked with each other along the transverse direction and have a first width in the transverse direction after being stacked. The plurality of second sheets 220 are stacked with each other along the transverse direction and have a second width equal to the first width after being stacked. The ground sheet 3 has a third width along the transverse direction, and the third width is at least not smaller than the first width to realize sufficient shielding of the first and second terminals. The front end of the horizontal portion 31 of the ground piece 3 goes over the first and second terminals along the mating direction to achieve sufficient shielding of the first and second terminals.

Referring to FIG. 4 , the first tail portions 214 on two adjacent first terminal modules 21 are offset from each other along the transverse direction. The second tail portions 224 on two adjacent second terminal modules 22 are also offset from each other along the transverse direction. In this way, holes corresponding to the first and second tail portions 214 and 224 are easily provided on the mother circuit board 800 . The ground pins 34 of the ground sheet 3 are arranged in a row along the transverse direction.

As shown in FIG. 2 , the shielding cover 4 includes a main body 42 and a protrusion 41 protruding forward from the main body 42 . A receiving space 43 and an opening 44 are defined in the main body portion 42 .

When assembling the electrical connector 100 , the shielding sheet 5 is sleeved on the shielding cover 4 . Solder the socket 10 to the mother circuit board 800 . The shielding cover 4 is crimped on the socket 10 so that the socket 10 is accommodated in the receiving space 43 through the opening 44 .

The ground sheet 3 is applied on the SFP connector to effectively reduce the crosstalk interference between the first terminal and the second terminal of the SFP connector. The ground plate 3 is directly accommodated in the insertion space 23 between the first terminal module 21 and the second terminal module 22 to make the structure of the electrical connector 100 simple. The first piece 210 and the second piece 220 are aligned along the mating direction, which can simplify the assembly process.

Claims (10)

1. electric connector, it can dock with banjo along the butt joint direction, this electric connector comprises insulating body, be contained in the insulating body and and ranked first the terminal module along one of the transverse direction configuration vertical with docking direction, one ranked second terminal module and ground strip, described the first terminal module comprises first lamellar body and is immobilizated in some the first terminals on first lamellar body, the described second terminal module comprises second lamellar body and is immobilizated in some second terminals on second lamellar body, it is characterized in that: described insulating body is provided with first slot that horizontal lengthwise is offered, second slot parallel and be positioned at first with first slot, spacer portion between second slot, spacer portion is provided with medial launder, one the first terminal that ranked first the terminal module all is disposed at first slot, one second terminal that ranked second the terminal module all is disposed at second slot, and ground strip is disposed at medial launder and ranked first terminal module and one and ranked second between the terminal module.

2. electric connector as claimed in claim 1 is characterized in that: described each first lamellar body aligns along docking direction with corresponding one second lamellar body.

3. electric connector as claimed in claim 1, it is characterized in that: the first terminal on described each first lamellar body comprises up and down first upper terminal and first lower terminal of configuration in opposite directions, and second terminal on described each second lamellar body comprises up and down second upper terminal and second lower terminal of configuration in opposite directions.

4. electric connector as claimed in claim 3, it is characterized in that: first upper terminal and first lower terminal on described first lamellar body are offset each other along transverse direction, second upper terminal and second lower terminal on described second lamellar body are offset each other along transverse direction, first upper terminal on first lamellar body aligns along above-below direction with second upper terminal on second lamellar body, and first lower terminal on first lamellar body is alignd along above-below direction with second lower terminal on second lamellar body.

5. electric connector as claimed in claim 3, it is characterized in that: described some first lamellar bodies are along first width that has after transverse direction piles up each other and piles up on the described transverse direction, described some second lamellar bodies have second width that equates with first width after transverse direction piles up each other and piles up, described ground strip is by the moulding of metal material integrated punching, described ground strip has the 3rd width along described transverse direction, and described the 3rd width is not less than first width at least.

6. electric connector as claimed in claim 1, it is characterized in that: described each the first terminal has first contact site that is positioned at front end, described each second terminal has second contact site that is positioned at front end, described ground strip is provided with the horizontal part between second contact site of first contact site of some the first terminals and some second terminals, and the front end of horizontal part surmounts first, second contact site along the butt joint direction.

7. electric connector as claimed in claim 6, it is characterized in that: described each the first terminal has first afterbody that is positioned at end, described each second terminal has second afterbody that is positioned at end, described ground strip is provided with some grounding legs, and each grounding leg is between first afterbody and corresponding second afterbody.

8. the described electric connector of claim 7 is characterized in that: described ground strip comprises that described some grounding legs extend respectively from the extension bottom from the kink of horizontal part bending and the extension that extends from kink downwards downwards.

9. the described electric connector of claim 7, it is characterized in that: first afterbody on described one adjacent two the first terminal modules that ranked first in the terminal module is offset each other along transverse direction, second afterbody on described one adjacent two the second terminal modules that ranked second in the terminal module is offset each other along transverse direction, and the grounding leg of ground strip is arranged in a row along transverse direction.

10. the described electric connector of claim 6, it is characterized in that: described each the first terminal is provided with first holding parts that is embedded in first lamellar body, described first holding parts comprises first kink of two angles of continuous bending, described first holding parts projection forward has first cantilever that leaves first lamellar body, and described first contact site is located at the first cantilever front end; Described each second terminal is provided with second holding parts that is embedded in second lamellar body, described second holding parts comprises second kink of two angles of continuous bending, described second holding parts projection forward has second cantilever that leaves second lamellar body, and described second contact site is located at the second cantilever front end.

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