CN205565177U - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, include: an insulator locates a plurality of signal terminal in the insulator, at least double -phase neighbour's 1 the 1st signal terminal of signal terminal component is right, each signal terminal has connecting portion, certainly connecting portion lean out to buckle and extend one inclined to one side the portion that forms, from the inclined to one side downwardly extending's of book portion a weld part, a shielding part, be equipped with a shielding portion cladding in insulator is last, from the shielding portion extends has a first ground connection foot, first ground connection foot is located the the first signal terminal pair the place ahead between the weld part, just first ground connection foot extremely the distance of connecting portion is less than first ground connection foot extremely the distance of weld part. First ground connection foot with the space was great when the mode of arranging of the first signal terminal pair made signal transmission, the impedance is less within a definite time for signal terminal, and the shielding effect is better, has guaranteed signal transmission's 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

In prior art, computer generally carries out physical connection by various electric connectors and periphery electronic equipment And electrical connection.In high frequency connectors field, due to high-frequency effects, in order to ensure stability and the integrity that signal transmits, right The requirement of impedance matching and electromagnetic shielding is higher.At present a kind of electric connector of exploitation, including an insulating body be located at described Multiple signal terminals in insulating body, in order to reduce the electromagnetic interference of described signal terminal, the holding parts of described signal terminal Being provided with deviation section makes the distance between signal terminal become big, thus the impedance between described signal terminal diminishes, and improves signal and passes Defeated stability.But, increasingly level off to miniaturization, miniaturization due to electric connector, in limited space, pass through The electromagnetic interference that the structure of change terminal self is improved between signal terminal has little significance.

In view of the problems referred to above, this utility model provides a kind of electrical connection that can effectively reduce electromagnetic interference or crosstalk Device.

Summary of the invention

Creation purpose of the present utility model is to provide one can reduce electromagnetic interference or crosstalk, effectively reduces letter simultaneously The electric connector of the impedance of number 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；At least two adjacent signal terminal structures Becoming one first signal terminal pair, described first signal terminal is to being located at described horizontal part, and each described signal terminal is at described water Between flat portion and described vertical portion, bending downwards is extended with a junction and is fixed in described vertical portion, outside from described connecting portion Tilt bending extension and be formed with a deviation portion, downwardly extend a weld part, described first signal terminal pair from described deviation portion Described weld part through described vertical portion be that a row is welded on circuit board；One shielding part, is provided with a shielding portion, described in cover Portion is coated on described vertical portion, is extended with one first grounding leg from described shielding portion and is welded on circuit board, described first ground connection Foot front between the described weld part of described first signal terminal pair, and described first grounding leg is to described connecting portion Distance is less than the distance of described first grounding leg to described weld part；

Further, described first grounding leg constitutes isosceles triangle with the weld part of described first signal terminal pair.

Further, described first signal terminal to be respectively provided on two sides with secondary signal terminal to and the 3rd signal terminal Right, described shielding portion is extended with one second grounding leg and the 3rd grounding leg, and described second grounding leg is positioned at described secondary signal end Son to weld part on the left of, described 3rd grounding leg is positioned on the right side of the weld part of described 3rd signal terminal pair；

Further, the weld part of described secondary signal terminal pair and the weld part of described 3rd signal terminal pair lay respectively at The both sides of the weld part of described first signal terminal pair in several rows of row, described second grounding leg and described 3rd grounding leg position In the both sides of described first grounding leg and in several rows of row.

Further, multiple conducting terminals are that two rows are located in described insulating body, described first signal terminal para-position In lower row, each described conducting terminal has a contact site and houses horizontal part described in what, and a junction is from described contact site end Between described horizontal part and described vertical portion, bending downwards extends and is placed in described vertical portion, and one first shielding sheet is located at two Arranging between the described contact site of described conducting terminal, a secondary shielding sheet is located at described in two rows between the connecting portion of conducting terminal, And described first shielding sheet contact 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, this utility model electric connector is provided with a shielding part and is coated on described insulating body not The space in insulating body must be taken, crosstalk between each row of signal terminals in sufficiently shielding described electric connector, described screen Shield is extended with multiple grounding leg, one first grounding leg described first signal terminal between front, and with described The weld part of one signal terminal pair constitutes isosceles triangle, and the horizontal range of described first grounding leg extremely described connecting portion is less than The horizontal range of described first grounding leg extremely described weld part, described first grounding leg and the symmetry of described first signal terminal pair Formula arrangement makes shield effectiveness more preferable, it is ensured that the transmission quality of signal.

[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；

Fig. 7 is shielding part and the front view of lower row's terminal in electric connector of the present utility model.

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

Main body	1	Conducting terminal	32	Sidewall	3401
						First host cavity	11	Upper row's conducting terminal	321	Kink	3402
Opening	111	Upper row's contact site	3211	Elastic	3403
						Second host cavity	12	Upper row's connecting portion	3212	Convex closure	3404
Depressed part	13	Upper row's weld part	3213	First grounding leg	341
						Groove	14	Lower row's conducting terminal	322	Second grounding leg	342
First conduit	141	Lower row's contact site	3221	3rd grounding leg	343
						Second conduit	142	Lower row's connecting portion	3222	First shielding sheet	35
Protuberance	143	Lower row's weld part	3223	Secondary shielding sheet	36
						Boss	16	Deviation portion	3224	Main part	361
Second adapter	3	First row	322A	Recess	3611
						Insulating body	31	Second row	322B	Buckling parts	362
Horizontal part	31A	Ground terminal	G1、G2、G3、G4	Holding piece	363
						Vertical portion	31B	First signal terminal pair	S1、S2	Abutting part	364
Upper body	311	Secondary signal terminal pair	S3、S4	Rear shielding casing	4
						Lower body	312	3rd signal terminal pair	S5、S6	Flat part	41
Collets	313	Power supply terminal	P1、P2	Clamping part	42
						First fixed block	314	Metal shell	33	Welding foot	43
Second fixed block	315	Shielding part	34	Circuit board	5
						Buckling groove	3151	Shielding portion	340

[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 connector includes a main body 1, the first adapter (not shown) being located in described main body 1 and Two adapters 3, connect the front shielding casing 4 of described first adapter (not shown) and the second adapter 3, and cover described master The rear shielding casing 5 of 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.Described first host cavity 11 houses described first adapter (not shown), and described first houses 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 (not shown).Described second host cavity 12 houses described Second adapter 3, and described second host cavity 12 is the most through.Described main body 1 rear end is provided with a depressed part 13 and described master The front end of the side surface of the opposite sides of body 1 is provided with a groove 14, is provided with one first conduit 141 and one second in described groove 14 Conduit 142 and a protuberance 143.Multiple locating dowel (not shown) and multiple boss 16 it is provided with below described main body 1, described Locating dowel (not shown) is inserted with fixing described main body 1 on described circuit board 6, and described boss 16 is resisted against described circuit board 6 Surface.

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 include one to The horizontal part 31A of front extension, and a vertical portion 31B is positioned at the lower section of 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, described upper row's conducting terminal 321 is located in described upper body 311 and described first fixed block 314, described 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 Described lower row's connecting portion 3222 end of described lower row's conducting terminal 322 tilts backwards deviation so that described lower row's weld part 3223 stagger in first row 322A and second row 322B, and described first row 322A is positioned at the front row of described second row 322B, described The width of the first row 322A width less than described second row 322B, and be welded in the way of DIP on circuit board 6.Described One fixed block 314 and described second fixed block 315 are fixed together by described shielding part 34.

With the dead ahead of described electric connector 3 as visual angle, as shown in Fig. 1, Fig. 5 to Fig. 7, conducting terminal 322 described in lower row It is followed successively by from left to right: a ground terminal G1, a pair transmission difference signal terminal S3 of USB 3.0 signal, S4(high-speed terminal), One ground 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.Each described signal terminal pair S1, S2, S3, S4, S5, S6 form by adjacent two signal terminals are symmetrical, and each described signal terminal centering is adjacent Two signal terminals lower row's connecting portion 3222 end respectively to both sides tilt be extended with a deviation portion 3224 so that Mei Yisuo State horizontal range between two signal terminals that signal terminal centering is adjacent and become big, the pair of USB 2.0 terminal S1, S2 that is the One signal terminal is pointed to the middle of described lower row's conducting terminal 322, and the lower row of S1, S2 is welded by described first signal terminal Meet portion 3223 and be positioned at described second row 322B, two to the difference signal terminal of described transmission USB 3.0 signal to i.e. secondary signal Terminal to S5, S6, is symmetrically distributed in the both sides of described lower row's conducting terminal 322, and described to S3, S4 and the 3rd signal terminal Binary signal terminal is positioned at described first row 322A to S3, S4 and the 3rd signal terminal to lower row's weld part 3223 of S5, S6, two Ground terminal that is first ground terminal G1, the second ground terminal G2 lay respectively at the outermost of described lower row's conducting terminal 322, 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 it is shown in figure 1, described secondary shielding sheet 36 is located in described first fixed block 314 and described second fixed block 315 Between, 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 buckling parts 362, institute State buckling parts 362 correspondence to be placed in described buckling groove 3151 so that described secondary shielding sheet 36 and described second fixed block 315 Fitting together, the upside of described main part 361 forms a recess 3611, and the both sides of described recess 3611 have each extended over one and supported Hold sheet 363 mutually to abut with described first shielding sheet 35.

As shown in Figures 1 to 7, described shielding part 34, it is provided with a shielding portion 340, the downside interposition of described shielding portion 340 The place of putting is extended with one first grounding leg 341, is extended with one second grounding leg at the downside end positions of described shielding portion 340 respectively 342 and one the 3rd grounding leg 343, described first grounding leg the 341, second grounding leg the 342, the 3rd grounding leg 343 is arranged in same Row, and it is positioned at the front row of the described first row 322A of described lower row's conducting terminal 322.Described first grounding leg 341 is positioned at described Between first signal terminal is to the described weld part 3223 of (S1, S2), and with described to (S1, S2) of described first signal terminal Weld part 3223 constitutes isosceles triangle, and described second grounding leg 342 is positioned at described first ground terminal G1 in orientation Described weld part 3223 on the left of, described 3rd grounding leg 343 is positioned at the institute of described second ground terminal G2 in orientation State on the right side of weld part 3223.

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 button from described sidewall 3401 3402 are combined on described first fixed block 314, and so, described shielding part 34 makes described first fixed block 314, and described second is solid Determining block 315 and described secondary shielding sheet 36 forms an entirety, it is firm that structure is more stablized.Also set on each described sidewall 3401 Having 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 main body of described secondary shielding sheet 36 The lower section of both sides, portion 361 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) each described signal terminal of described signal terminal centering makes institute from the oblique deviation of end of described connecting portion Stating the spacing between signal terminal and become big, between signal terminal, impedance reduces, and staggers in two rows' settings before and after described weld part, also Advantageously reduce the electromagnetic interference between signal terminal.

(2) described electric connector is provided with a shielding part and is coated on insulating body, and described shielding part is extended with multiple ground connection Foot, described first grounding leg constitutes isosceles triangle with the weld part of described first signal terminal, and described first grounding leg is extremely The horizontal range of the described connecting portion of described first signal terminal is less than the distance of described first grounding leg extremely described weld part, this The arrangement mode of sample makes signal transmission time space bigger, and shield effectiveness is more preferable.

(3) outside described second grounding leg left front adjacent to described secondary signal terminal pair, described 3rd grounding leg Outside right front adjacent to described 3rd signal terminal pair, it is the most right that the so every pair described signal terminal is designed with a grounding leg Should, reduce the electromagnetic interference between every pair of described signal terminal, it is ensured that the quality of signal transmission.

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 (10)

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

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

At least two adjacent signal terminals constitute one first signal terminal pair, and described first signal terminal is to being located at described level 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 institute State in vertical portion, be formed with a deviation portion from the outward-dipping bending extension of described connecting portion, downwardly extended from described deviation portion One weld part, the described weld part of described first signal terminal pair is that a row is welded on circuit board through described vertical portion；

One shielding part, is provided with a shielding portion, and described shielding portion is coated on described vertical portion, is extended with one first from described shielding portion Grounding leg is welded on circuit board, before described first grounding leg is between the described weld part of described first signal terminal pair Side, and the distance of described first grounding leg extremely described connecting portion is less than the distance of described first grounding leg to described weld part.

2. electric connector as claimed in claim 1, it is characterised in that: described first grounding leg and described first signal terminal pair Weld part constitute isosceles triangle.

3. electric connector as claimed in claim 1, it is characterised in that: described first signal terminal is to being respectively provided on two sides with the Binary signal terminal to and the 3rd signal terminal pair, described shielding portion is extended with one second grounding leg and the 3rd grounding leg, described Two grounding legs are positioned on the left of the weld part of described secondary signal terminal pair, and described 3rd grounding leg is positioned at described 3rd signal terminal To weld part on the right side of.

4. electric connector as claimed in claim 3, it is characterised in that: the weld part of described secondary signal terminal pair and described the The weld part of three signal terminals pair lays respectively at the both sides of the weld part of described first signal terminal pair and in several rows of row, described Second grounding leg and described 3rd grounding leg are positioned at the both sides of described first grounding leg and in several rows of row.

5. 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 first signal terminal is pointed to lower row, and each described conducting terminal has a contact site and houses level described in what Portion, a junction extends from the bending downwards between described horizontal part and described vertical portion of described contact site end and is placed in institute Stating vertical portion, one first shielding sheet is located between the described contact site of conducting terminal described in two rows, and a secondary shielding sheet is located at two Arrange between the connecting portion of described conducting terminal, and described first shielding sheet contacts with each other with described secondary shielding sheet.

6. electric connector as claimed in claim 5, 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.

7. electric connector as claimed in claim 6, 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.

8. electric connector as claimed in claim 6, 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.

9. electric connector as claimed in claim 8, 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.

10. electric connector as claimed in claim 8, it is characterised in that: iron-clad after, it is coated on after described vertical portion, Described kink is extended with an elastic respectively, and described elastic contacts with each other with described rear iron-clad.