CN205488840U - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, include: an insulator, insulator includes a horizontal part that extends forward, a vertical position in the horizontal part below, a plurality of signal terminal locate the horizontal part, each signal terminal has a weld part, the weld part passes vertical portion is one row and welds on the circuit board, a shielding part is equipped with a shielding portion, the shielding portion cladding in vertical portion, and from the shielding portion extends to be had two at least ground connection feet to be one row to weld on the circuit board, at least two the ground connection foot arrange in the weld part is front -seat, one of them the ground connection foot lies in the leftmost side on array orientation the weld part left side, another the ground connection foot lies in the rightmost side on array orientation the weld part right side. The ground connection foot is one row of beading on the circuit board for the ground connection route shortens, cladding simultaneously signal terminal the weld part, the shielding effect is better, has guaranteed the signal transmission quality.

Description

Electric connector

Technical field

This utility model relates to a kind of electric connector being conducive to improving signal transmission quality.

Background technology

Existing a kind of electric connector, including a body be housed in intrinsic multiple signal terminal, a metal shell, It is coated on the outside of described body for shielding the interference between described electric connector and the external world.Described electric connector also includes one Shielding part is for when signal terminal carries out signal transmission, shielding interfering between described signal terminal, described shielding part It is extended with flexure strip for the inwall Elastic Contact with described metal shell, then is connected to circuit board by described metal shell Ground path.But the transmission path that this structure makes described high frequency electric is longer, it is also possible to due to flexure strip and metal-back Body loose contact causes transmitting path instability, and makes impedance ground big by metal shell transmission, and earthing effect is poor, thus Affect signal transmission quality；Extend it addition, described flexure strip is the side from shielding part so that the weldering of described signal terminal It is exposed on circuit board in foot is not covered by described shielding part, therefore also can exist more serious between described signal terminal Interference problem.

In view of the problems referred to above, this utility model provides one can reduce interference effect between signal terminal and is preferably electrically connected Connect device.

Summary of the invention

Creation purpose of the present utility model is that providing a kind of can effectively reduce the electric connector of interference between signal terminal.

In order to achieve the above object, this utility model provides a kind of electric connector, including: an insulating body, described insulation Body includes a horizontal part extended forward, and a vertical portion is positioned at below described horizontal part；Multiple signal terminals, are located at described water Flat portion, the bending downwards between described horizontal part and described vertical portion of each described signal terminal is extended with a junction and is fixed on In described vertical portion, having downwardly extended a weld part from described connecting portion, described weld part passes described vertical portion at least one Row is welded on circuit board；One shielding part, is provided with a shielding portion, and described shielding portion is coated on described vertical portion, and from described screening It is that a row is welded on circuit board that the portion of covering is extended with at least two grounding leg；Grounding leg described at least two is arranged in described welding The front row in portion, wherein grounding leg described in is positioned on the left of the described weld part of the leftmost side in orientation, another described ground connection Foot is positioned on the right side of the described weld part of the rightmost side in orientation.

Further, described shielding portion is extended with a pin between described at least two grounding leg and with described at least two Individual grounding leg is several rows of row；

Further, described signal terminal comprises one first signal terminal being made up of at least two adjacent described signal terminals Right, described pin is between the described weld part of described first signal terminal pair, and described pin and described first signal end Son to weld part constitute isosceles triangle.

Further, multiple conducting terminals are that two rows are located in described insulating body, and described signal terminal is positioned at lower row, Each described conducting terminal has a contact site and is placed in described horizontal part, a junction from described contact site end at described water Between flat portion and described vertical portion, bending downwards extends and is placed in described vertical portion, and one first shielding sheet is located at described in two rows and is led Between the described contact site of electric terminal, a secondary shielding sheet is located at described in two rows between the connecting portion of conducting terminal, and described One shielding sheet contacts with each other with described secondary shielding sheet；

Further, described vertical portion includes one first fixed block and one second fixed block, the company of described upper row's conducting terminal The portion of connecing is contained in described first fixed block, and the connecting portion of described lower row's conducting terminal is contained in described second fixed block；

Further, described second fixed block is respectively provided on two sides with a buckling groove, and described secondary shielding sheet has a tabular Main part, described main part both sides have each extended over a buckling parts, and described buckling parts correspondence is placed in described buckling groove.

Further, described shielding portion is coated on before described vertical portion, and is respectively provided on two sides with a sidewall, from described side Wall is respectively extended with a kink, and described kink is fastened on described first fixed block；

Further, described secondary shielding sheet has a flat main part, and described main part is respectively provided on two sides with one and supports Meeting portion, described abutting part contacts with each other with described sidewall.

Further, iron-clad after, it is coated on after described vertical portion, described kink is extended with an elastic respectively, Described elastic contacts with each other with described rear iron-clad.

Compared with prior art, to be extended with at least two grounding leg direct for the described shielding part of this utility model electric connector Being welded on circuit board, so design makes described shielding part when the interference shielded between described signal terminal, it is not necessary at screen The side of shield arranges flexure strip and metal shell Elastic Contact, then connects the earth lead to circuit board by metal shell Road, therefore the transmission path of electric current shortens relatively, the most there is not flexure strip and causes transmitting path not with metal shell loose contact Stable problem, meanwhile, described grounding leg is arranged in the front row of the described weld part of described signal terminal, and position what respectively Outside outermost described weld part, the interference being greatly reduced between signal terminal, improve the quality of signal transmission.

[accompanying drawing explanation]

Fig. 1 is the three-dimensional exploded view of electric connector of the present utility model；

Fig. 2 is the body portion exploded view of electric connector of the present utility model；

Fig. 3 is the body portion exploded view of electric connector of the present utility model；

Fig. 4 is the axonometric chart of electric connector of the present utility model；

Fig. 5 is the top view of the circuit board that electric connector corresponding matching of the present utility model couples；

Fig. 6 is the sectional view of electric connector of the present utility model.

The drawing reference numeral explanation of detailed description of the invention:

Main body	1	Conducting terminal	32	Kink	3402
						First host cavity	11	Upper row's conducting terminal	321	Elastic	3403
Opening	111	Upper row's contact site	3211	Convex closure	3404
						Second host cavity	12	Upper row's connecting portion	3212	Pin	341
Depressed part	13	Upper row's weld part	3213	Grounding leg	342
						Groove	14	Lower row's conducting terminal	322	Grounding leg	343
First conduit	141	Lower row's contact site	3221	First shielding sheet	35
						Second conduit	142	Lower row's connecting portion	3222	Secondary shielding sheet	36
Protuberance	143	Lower row's weld part	3223	Main part	361
						Boss	16	First row	322A	Recess	3611
Second adapter	3	Second row	322B	Buckling parts	362
						Insulating body	31	Ground terminal	G1、G2、G3、G4	Holding piece	363
Horizontal part	31A	First signal terminal pair	S1、S2	Abutting part	364
						Vertical portion	31B	Secondary signal terminal pair	S3、S4	Front shielding casing	4
Upper body	311	3rd signal terminal pair	S5、S6	Rear shielding casing	5
						Lower body	312	Power supply terminal	P1、P2	Flat part	51
Collets	313	Metal shell	33	Clamping part	52
						First fixed block	314	Shielding part	34	Welding foot	53
Second fixed block	315	Shielding portion	340	Circuit board	6
						Buckling groove	3151	Sidewall	3401

[detailed description of the invention]

For ease of being better understood from the purpose of this utility model, structure, feature and effect etc., in conjunction with accompanying drawing with concrete The utility model is described in further detail for embodiment.

As shown in Figures 1 to 4, this utility model electric connector is in order to be installed on circuit board 6 and to be available for two in succession Connect device and insert connection.Described electric coupler component includes a main body 1, the first adapter (not shown) being located in described main body 1 With the second adapter 3, connect the front shielding casing 4 of described first adapter (not shown) and the second adapter 3, and shelter State the rear shielding casing 5 of main body 1 rear end.

Described main body 1 is provided with one first host cavity 11 and one second host cavity 12, and described first host cavity 11 is positioned at described The lower section of the second host cavity 12.It is not shown that described first host cavity 11 houses described first adapter 2(), and described first collecting Chamber 11 is provided with below an interface inserted for described first adapter (not shown) and described first host cavity 11 and is provided with one Opening 111 is welded on described circuit board 6 for described first adapter.Described second host cavity 12 houses described second and connects Device 3, and described second host cavity 12 is the most through.Described main body 1 rear end is provided with the relative of a depressed part 13 and described main body 1 The front end of the side surface of both sides is provided with a groove 14, be provided with in described groove 14 one first conduit 141 and one second conduit 142 with And a protuberance 143, described front shielding casing 4 coordinates fixing with described groove 14.It is provided with multiple locating dowel below described main body 1 (not shown) and multiple boss 16, described locating dowel (not shown) is inserted on described circuit board 6 with fixing described main body 1, institute State boss 16 and be resisted against the surface of described circuit board 6.

Described second adapter 3 includes an insulating body 31, is located at the multiple conducting terminals 32 in described insulating body 31, And it is coated with a metal shell 33 of described insulating body 31 and multiple described conducting terminal 32.Described insulating body 31 includes one The horizontal part 31A extended forward, and a vertical portion 31B is positioned at below described horizontal part 31A, a shielding part 34 bread in the past covers institute State the described vertical portion 31B of insulating body 31.Described horizontal part 31A includes on one body 311 and once body 312, described on Body 311 and described lower body 312 mutually fasten along the vertical direction and are contained in described metal shell 33, described vertical portion 31B Including one first fixed block 314 and one second fixed block 315, described first fixed block 314 is located at below described upper body 311, Described second fixed block 315 is located at below described lower body 312；Multiple described conducting terminals 32 be located in two rows described absolutely In edge body 31, conducting terminal 321 described in upper row is located in described upper body 311 and described first fixed block 314, described in lower row Conducting terminal 322 is located in described lower body 312 and described second fixed block 315.

Hold described in described upper row's contact site 3211 of conducting terminal 321 described in one first shielding sheet 35 row of being located at and lower row Between described lower row's contact site 3221 of son 322, the described upper row of conducting terminal 321 described in secondary shielding sheet 36 row of being located at Described in connecting portion 3212 and lower row between described lower row's connecting portion 3222 of conducting terminal 322, and described first shielding sheet 35 with Described secondary shielding sheet 36 mutually abuts.Described upper row's contact site 3211 of conducting terminal 321 described in upper row buries molding with edge Mode (insert molding) is fixed on collets 313 and forms a Terminals Die group, described first shielding sheet 35 and described end Submodule group is inlayed together and is embedded in described upper body 311, and described lower row's contact site 3221 of conducting terminal 322 described in lower row buries with edge The mode (insert molding) of molding is fixed in described lower body 312, described upper body 311 and described lower body 312 Mutually being fastened, described upper row's connecting portion 3212 of conducting terminal 321 described in upper row is (insert in the way of edge buries molding Molding) be fixed in described first fixed block 314, described upper row's weld part 3213 of conducting terminal 321 described in upper row with The mode of SMT is welded on circuit board 6；Described lower row's connecting portion 3222 of conducting terminal 322 described in lower row buries molding with edge Mode (insert molding) is fixed in described second fixed block 315, and looks over from the dead ahead of electric connector, part Deviation is tilted backwards so that described lower row's weld part 3223 at described lower row's connecting portion 3222 of conducting terminal 322 described in lower row Staggering in first row 322A and second row 322B, described first row 322A is positioned at the front row of described second row 322B, and described The width of the one row 322A width less than described second row 322B.Described first fixed block 314 and described second fixed block 315 lead to Cross described shielding part 34 to be fixed together.

With the dead ahead of described electric connector 3 as visual angle, with reference to Fig. 5 and Fig. 6, conducting terminal 322 described in lower row from a left side to The right side is followed successively by: a ground terminal G1, a pair transmission difference signal terminal S3 of USB 3.0 signal, S4(high-speed terminal), a ground connection Terminal G3, a power supply terminal P1, a pair USB 2.0 terminal S1, S2, a power supply terminal P2, a ground terminal G4, a pair transmission Difference signal terminal S5 of USB 3.0 signal, S6(high-speed terminal), a ground terminal G2.The pair of USB 2.0 terminal S1, S2 that is first signal terminal is pointed to the middle of described lower row's conducting terminal 322, and described first signal terminal is to S1, S2 Lower row's weld part 3223 is positioned at described second row 322B, two to the difference signal terminal of described transmission USB 3.0 signal to i.e. Binary signal terminal to S5, S6, is symmetrically distributed in the both sides of described lower row's conducting terminal 322 to S3, S4 and the 3rd signal terminal, and Described secondary signal terminal is positioned at described first row to S3, S4 and the 3rd signal terminal to lower row's weld part 3223 of S5, S6 322A, two ground terminal that is first ground terminal G1, the second ground terminal G2 lay respectively at described lower row's conducting terminal 322 Outermost, and lower row's weld part 3223 of described first ground terminal G1 and described second ground terminal G2 is positioned at described second row 322B。

As shown in Figures 1 to 6, described secondary shielding sheet 36 is located in described first fixed block 314 and fixes with described second Between block 315, described second fixed block 315 be respectively provided on two sides with a buckling groove 3151 for fixing described secondary shielding sheet 36, described secondary shielding sheet 36 has a flat main part 361, and described main part 361 both sides have each extended over a fastening Portion 362, described buckling parts 362 correspondence is placed in described buckling groove 3151 so that described secondary shielding sheet 36 is with described second Fixed block 315 fits together, and the upside of described main part 361 forms a recess 3611, and the both sides of described recess 3611 are respectively It is extended with a holding piece 363 mutually to abut with described first shielding sheet 35.

Described shielding part 34, is provided with a shielding portion 340, and the downside middle position of described shielding portion 340 is extended with one and connects Foot 341, is extended with grounding leg 342 and a grounding leg 343 respectively at the downside end positions of described shielding portion 340, described in connect Foot 341 and described grounding leg 342,343 are arranged in same row, and are positioned at the described first row of described lower row's conducting terminal 322 The front row of 322A.Described pin 341 between the described first signal terminal described weld part 3223 to S1, S2, and with institute Stating the first signal terminal and the described weld part 3223 of S1, S2 is constituted isosceles triangle, described grounding leg 342 is in orientation Being positioned on the left of the described weld part 3223 of described first ground terminal G1, described grounding leg 343 is positioned at described in orientation On the right side of the described weld part 3223 of the second ground terminal G2.

Described shielding portion 340 be respectively provided on two sides with a sidewall 3401, described sidewall 3401 part is coated on described first Fixed block 314 and described second fixed block 315, be respectively extended with a kink 3402, described kink from described sidewall 3401 3402 are fastened on described first fixed block 314, and so, described shielding part 34 makes described first fixed block 314, and described second Fixed block 315 and described secondary shielding sheet 36 form an entirety, and it is firm that structure is more stablized.On each described sidewall 3401 also Being provided with a convex closure 3404, described convex closure 3404 is for abutting with the inwall of described main body 1, and described kink 3402 has each extended over One elastic 3403, described elastic 3403 is for contacting with described rear shielding casing 5.The described master of described secondary shielding sheet 36 The lower section of body 361 both sides each extends over the inner surface of an abutting part 364 and described sidewall 3401 and contacts with each other.

Described rear shielding casing 5 is located at the rear end of described main body 1.Described rear shielding casing 5 is provided with a flat part 51, is positioned at Multiple clamping parts 52 of described flat part 51 both sides and be positioned at the multiple welding foots 53 below described flat part 51.Described flat board The described vertical portion 31B of described insulating body 31 is covered in portion 51.Described clamping part 52 is fastened in described main body 1 with fixing described Rear shielding casing 5.Described welding foot 53 is welded in circuit board 6 and makes described rear shielding casing 5 ground connection.

In sum, this utility model electric connector has a following beneficial effect:

(1) described shielding part is directly extended with grounding leg so that high-frequency signal is directly connected to institute by described shielding part Stating circuit board, grounding path is short, and is not required to by medium transmission, and impedance is little, and laser propagation effect is good, can reduce in described adapter Electromagnetic interference between signal terminal.

(2) described shielding part is extended with multiple grounding leg, and the plurality of grounding leg is that a row is arranged at the plurality of conduction The front row of terminal weld part, and at least two described grounding legs are positioned at outside weld part described in outermost so that described welding Being unlikely to be exposed on circuit board in portion is enclosed in described shielding part, the two side of the most described shielding part is also wrapped from side Cover the plurality of conducting terminal, so greatly reduce the electromagnetic interference between each described conducting terminal.

Detailed description above is only the explanation of the preferred embodiment of this utility model, and non-therefore limitation this utility model is specially Profit scope, so, all utilization this creation description and the equivalence techniques change for it of diagramatic content institute, it is both contained in this creation specially In the range of profit.

Claims (9)

1. an electric connector, in order to be welded on a circuit board, it is characterised in that:

One insulating body, described insulating body includes a horizontal part extended forward, and a vertical portion is positioned at below described horizontal part；

Multiple signal terminals, are located at described horizontal part, and each described signal terminal is between described horizontal part and described vertical portion Bending downwards is extended with a junction and is fixed in described vertical portion, has downwardly extended a weld part from described connecting portion, described Weld part is welded on circuit board through described vertical portion at least one row；

One shielding part, is provided with a shielding portion, and described shielding portion is coated on described vertical portion, and is extended with at least from described shielding portion Two grounding legs are that a row is welded on circuit board；

Grounding leg described at least two is arranged in the front row of described weld part, and wherein described in one, grounding leg is positioned in orientation On the left of the described weld part of the leftmost side, another described grounding leg is positioned on the right side of the described weld part of the rightmost side in orientation.

2. electric connector as claimed in claim 1, it is characterised in that: described shielding portion be extended with a pin be positioned at described at least It is several rows of row between two grounding legs and with described at least two grounding leg.

3. electric connector as claimed in claim 2, it is characterised in that: described signal terminal comprise by least two adjacent described in Signal terminal constitute one first signal terminal pair, described pin be positioned at described first signal terminal pair described weld part it Between, and the weld part composition isosceles triangle of described pin and described first signal terminal pair.

4. electric connector as claimed in claim 1, it is characterised in that: multiple conducting terminals are that two rows are located at described insulation In body, described signal terminal is positioned at lower row, and each described conducting terminal has a contact site and is placed in described horizontal part, and one even The portion that connects extend from the bending downwards between described horizontal part and described vertical portion of described contact site end and be placed in described vertically Portion, one first shields between the described contact site that sheet is located at conducting terminal described in two rows, and a secondary shielding sheet is located at described in two rows Between the connecting portion of conducting terminal, and described first shielding sheet contacts with each other with described secondary shielding sheet.

5. electric connector as claimed in claim 4, it is characterised in that: described vertical portion includes one first fixed block and one second Fixed block, the connecting portion of described upper row's conducting terminal is contained in described first fixed block, the connecting portion of described lower row's conducting terminal It is contained in described second fixed block.

6. electric connector as claimed in claim 5, it is characterised in that: described second fixed block is respectively provided on two sides with a fastening Groove, described secondary shielding sheet has a flat main part, and described main part both sides have each extended over a buckling parts, described button Conjunction portion correspondence is placed in described buckling groove.

7. electric connector as claimed in claim 5, it is characterised in that: described shielding portion is coated on before described vertical portion, And it is respectively provided on two sides with a sidewall, and respectively it being extended with a kink from described sidewall, described kink is fastened on described first and fixes Block.

8. electric connector as claimed in claim 7, it is characterised in that: described secondary shielding sheet has a flat main body Portion, described main part is respectively provided on two sides with an abutting part, and described abutting part contacts with each other with described sidewall.

9. electric connector as claimed in claim 7, it is characterised in that: iron-clad after, it is coated on after described vertical portion, institute Stating kink and be extended with an elastic respectively, described elastic contacts with each other with described rear iron-clad.