CN202737209U

CN202737209U - Electric connector

Info

Publication number: CN202737209U
Application number: CN 201220367729
Authority: CN
Inventors: 戈明; 吴林; 徐思雷
Original assignee: Kunshan Luxshare Precision Industry Co Ltd
Current assignee: Kunshan Luxshare Precision Industry Co Ltd
Priority date: 2012-07-27
Filing date: 2012-07-27
Publication date: 2013-02-13
Anticipated expiration: 2022-07-27

Abstract

An electric connector is used for being installed on a circuit board. The electric connector comprises an insulation body, a plurality of conductive terminals accommodated inside the insulation body, and a metal shielding housing wrapping the insulation body, wherein the shielding housing is provided with a plug hole for accommodating and connecting with the connector; the insulating body has a tongue plate which extends forward into the plug hole; the conductive terminals comprise at least one pair of differential signal terminals and grounding terminals adjacent to the differential signal terminals; each conductive terminal has a contact portion which is arranged on the tongue plate in a row manner and is exposed in the plug hole; and the shielding housing is further provided with grounding tail portions in contact with the grounding terminals, so that a grounding loop is formed between the shielding housing and the grounding terminals, a function of improving the anti-electromagnetic interference is realized, and the signal shielding effect of the shielding housing is increased.

Description

Electric connector

Technical field

The utility model relates to a kind of electric connector, relates in particular to a kind of electric connector with metal shielding casing.

Background technology

Electric connector generally is mounted in circuit board, be used for pegging graft with butt connector, electric connector comprises insulating body, be contained in the interior some conducting terminals of insulating body and the metal shielding casing of coated insulation body, metal shell is provided with the spliced eye of accommodating butt connector, insulating body comprises base portion and extends forwardly to the hyoplastron of spliced eye from base portion, conducting terminal comprises the fixed part that fixes with insulating body, the weld part that the contact site that self-retaining section extends forward and self-retaining section extend back, contact site row is located on the hyoplastron and exposes spliced eye, contact in order to butt connector, weld part extends back insulating body, is welded on the circuit board.Yet the ground connection of this electric connector and shield effectiveness are not good, have affected signal transmission effect and the quality of electric connector.

Therefore, be necessary to design a kind of novel electric connector, to solve the problems of the technologies described above.

The utility model content

The purpose of this utility model is to provide a kind of electric connector that improves anti-electromagnetic interference that has.

For realizing aforementioned purpose, the utility model adopts following technical scheme: a kind of electric connector, in order to be mounted on the circuit board, it comprises insulating body, be contained in the interior some conducting terminals of insulating body and the metal shielding casing of coated insulation body, described shielding casing is provided with to accommodate the spliced eye of butt connector, described insulating body has the hyoplastron that protrudes into forward spliced eye, described conducting terminal comprises at least one pair of difference signal terminal and the earth terminal adjacent with difference signal terminal, each conducting terminal has the contact site that row is located on the hyoplastron and is exposed to spliced eye, and described shielding casing also is provided with the ground connection afterbody that contacts with earth terminal.

As further improvement of the utility model, described conducting terminal has the weld part that extends back, and described ground connection afterbody contacts with the weld part of earth terminal.

As further improvement of the utility model, described shielding casing comprises roof, diapire and the two side that encloses the described spliced eye of formation, and described ground connection afterbody links to each other with the diapire one.

As further improvement of the utility model, described electric connector comprises the locating piece that upwards is fixed on the insulating body, and locating piece has to the supporting bracket of upper support shielding casing diapire, and described ground connection afterbody is insulated body and locating piece is jointly fixing.

As further improvement of the utility model, the described ground connection afterbody that described shielding casing diapire rear end is provided with breach and extends from a medial margin of breach, described locating piece comprises the described supporting bracket that upwards is supported on the insulating body and partly is contained in the substrate in the breach and extends forward from substrate, and described ground connection afterbody is jointly fixing by substrate and insulating body.

As further improvement of the utility model, described insulating body is provided with opening towards the holding slot of locating piece, locating piece comprises and upwards protrudes out from substrate and be fixed on the fixing piece in the holding slot and run through the fixing piece along fore-and-aft direction, holding tank also is arranged with on substrate and runs through backward substrate, described ground connection afterbody comprise link to each other with diapire and be positioned at the horizontal part of breach, the rake that extends upwards and backwards from horizontal part and the abutting part of being located at the rake top, horizontal part is contained in breach and the holding tank simultaneously.

As further improvement of the utility model, described conducting terminal comprises the first end subgroup and meets the second terminal group of USB 2.0 host-host protocols, first, the combination of the second terminal group meets USB 3.0 host-host protocols, described first end subgroup comprises two pairs of the first difference signal terminal and one first earth terminal between this two couple the first difference signal terminal, described the second terminal group comprises one second earth terminal, one power supply terminal and a pair of the second difference signal terminal between this second earth terminal and power supply terminal, described ground connection afterbody is at least with first, one of them contact of the second earth terminal.

As further improvement of the utility model, described conducting terminal has and extends back and be arranged in weld part on the insulating body, weld part is arranged in a row and is positioned at the same level face along left and right directions, and a weld part part is contained in insulating body, and another part is exposed to the electric connector outside.

As further improvement of the utility model, described the first earth terminal has the isolated a pair of described weld part in the left and right sides, the weld part of conducting terminal is arranged in a row at left and right directions, and putting in order is followed successively by: two weld parts of two weld parts of the weld part of power supply terminal, a pair of the first difference signal terminal, a weld part of the first earth terminal, the second difference signal terminal, an other weld part of the first earth terminal, two weld parts of other a pair of the first difference signal terminal, the weld part of the second earth terminal.

As further improvement of the utility model, described insulating body comprises main body and is fixed in collets on the main body, described hyoplastron is located on the main body, described first end subgroup is fixed or is inlayed to bury and takes shape on the main body, described the second terminal group is fixed or is inlayed to bury and takes shape on the collets, described locating piece is upwards to be fixed on the collets, and be positioned piece and collets of the horizontal part of ground connection afterbody are jointly fixing.

As further improvement of the utility model, described electric connector also comprise be set on the shielding casing or with the integrated ground strip of shielding casing, ground strip has the elastic contact chip that protrudes out forward to keep in touch with exterior panel.

Compared to prior art, the utility model hiding case for electric connector is provided with the ground connection afterbody that contacts with earth terminal, make between shielding casing and the earth terminal and form grounded circuit, reach the function of improving anti-electromagnetic interference, increase the effect of shielding casing signal shielding.

Description of drawings

Fig. 1 is the three-dimensional combination figure of the utility model electric connector.

Fig. 2 is the three-dimensional combination figure of another angle of the utility model electric connector.

Fig. 3 is the utility model electric connector insulating body and the schematic perspective view that shielding casing separates, and demonstrates the electric connector internal structure.

Fig. 4 is the part three-dimensional exploded view of the utility model electric connector.

Fig. 5 is the part three-dimensional exploded view of another angle of the utility model electric connector.

Fig. 6 is the three-dimensional exploded view of the utility model electric connector.

Fig. 7 is the three-dimensional exploded view of another angle of the utility model electric connector.

Embodiment

See also Fig. 1 to shown in Figure 7, the utility model electric connector 100 is a kind of USB 3.0 socket connectors, in order to being installed on the circuit board (not shown), is communicated with circuit on the circuit board by wire (not shown).This electric connector 100 comprises insulating body 1, be contained in some conducting terminals 2 in the insulating body 1, be fixed in locating piece 3 on the insulating body 1, the metal shielding casing 4 of coated insulation body 1 and be set in the ground strip 5 of shielding casing 4 front ends.

Insulating body 1 comprises a main body 10 and is fixed on collets 15 on the main body 10, main body 10 comprises base portion 11 and the hyoplastron 12 that protrudes out forward from base portion 11, hyoplastron 12 is provided with upper surface 121 and the lower surface 122 relative with upper surface 121, the rear portion of lower surface 122 is concaved with some accepting grooves 123, the front portion is concaved with some depressions 124, be provided with a fin 125 between every adjacent two depressions 124, depression 124 extends to forward the front end face 120 of hyoplastron 12.

Base portion 11 bottom surfaces are provided with the location notch 111 of fixed insulation piece 15, be around in the interior antetheca 112 of location notch 111 front ends, the first projection 113 that extends back from two ends, interior antetheca 112 left and right sides, two second projections 114 that protrude out downwards from base portion 11 rear ends and be positioned at two protuberances 115 of location notch 111, two first projections 113 align along fore-and-aft direction one by one with two second projections 114, so that form a groove 116 between each first projection 113 and one second projection 114 and be positioned at first draw-in groove 117 in these groove 116 outsides, groove 116 connects with draw-in groove about 117, the first draw-in groove 117 is arranged with on the side surface of base portion 11, and two protuberances 115 separate and be positioned at left and right directions the centre of two first projections 113 between left and right.The rear end of location notch 111 inner roof walls is concaved with the some conduits 118 that run through backward, and conduit 118 connects with location notch 111.

Collets 15 tops are concaved with a pair of holddown groove 153, and the bottom is concaved with a holding slot 155, and outer surface is concaved with one second draw-in groove 157.The holddown groove 153 of collets 15 fixes with two protuberances 115 of main body 10, and collets 15 are resisted against forward on the main body 10 interior antethecas 112, and two ends, the left and right sides are contained in the groove 116, restriction collets 15 front and back and move left and right.First, second draw-in groove 117,157 consistencies from top to bottom also connect mutually.

Conducting terminal 2 comprises first end subgroup 21 and the second terminal group 22, first,

second terminal group

21,22 combination meet USB 3.0 host-host protocols, the second terminal group 22 meets USB 2.0 host-host protocols, so the first terminal 21 comprises two pairs of the first difference signal terminal 211 and one first earth terminal, 212, the second terminal group 22 between this two couple the first difference signal terminal 211 and comprises one second earth terminal 222, a power supply terminal 223 and a pair of the second difference signal terminal 221 between this second earth terminal 222 and power supply terminal 223.

Each conducting terminal 2 comprises the weld part 25 that contact site 24 that fixed part 23, self-retaining section 23 extend forward and self-retaining section 23 extend back, fixed part 23 edges of first end subgroup 21 bury on the main body 10 that is molded over insulating body 1, fixed part 23 edges of first end subgroup 21 bury on the collets 15 that are molded over insulating body 1, in other embodiments, first,

second terminal group

21,22 is fixed on the insulating body 1.The contact site 24 of first end subgroup 21 is contained in depression 124, the second terminal group 22 of insulating body 1 for tabular contact site 24 is contained in insulating body 1 main body 10 accepting grooves 123 for flexible arcuate structure part.

The weld part 25 of the second terminal group 22 extends back collets 15 and is contained in the conduit 118 of main body 10, first,

second terminal group

21,22 weld part 25 extend back and are arranged in the bottom surface of insulating body 1 main body 1 base portion 11, and arranging along left and right directions is that a row is located in the same horizontal plane, all weld parts 25 also are exposed to electric connector 100 outsides downwards, with with wire bonds together, reach the electric connection between electric connector 100 and the circuit board, in other embodiments, circuit board directly and conducting terminal 2 weld parts 25 weld together.The second earth terminal 222 of the second terminal group 22 and the weld part 25 of power supply terminal 223 are positioned at this row's outermost locations, the first earth terminal 212 of first end subgroup 21 is provided with the isolated a pair of weld part 25 in the left and right sides, two weld parts 25 of the second difference signal terminal 221 of the second terminal group 22 are arranged in this between the weld part 25, so weld part 25 the putting in order on left and right directions of conducting terminal 2 is followed successively by: the weld part 25 of power supply terminal 223, two weld parts 25 of a pair of the first difference signal terminal 211, one weld part 25 of the first earth terminal 212, two weld parts 25 of the second difference signal terminal 221, an other weld part 25 of the first earth terminal 212, other two weld parts 25 of a pair of the first difference signal terminal 211, the weld part 25 of the second earth terminal 222.

Locating piece 3 comprises that substrate 31, the supporting bracket 32 that protrudes out forward from substrate 31 reach the fixing piece 33 that upwards protrudes out from substrate 31 front ends, the two ends, the left and right sides of fixing piece 33 protrude out laterally substrate 31 and form protuberance 331, one holding tank 34 runs through fixing piece 33 along fore-and-aft direction and also is arranged with downwards on substrate 31, and this holding tank 34 also runs through substrate 31 backward.

Shielding casing 4 comprises roof 41, diapire 42 and two lateral walls 43, roof 41, diapire 42 and two side 43 enclose and form a spliced eye 45, in order to accommodate butt connector, roof 41 and diapire 42 outer surfaces are provided with the lug 411 that extends forward, the ground connection afterbody 422 that diapire 42 rear ends are provided with a breach 421 and extend back from these breach 421 leading edges, ground connection afterbody 422 comprises the horizontal part 423 that extends back, the rake 424 that extends upwards and backwards from horizontal part 423 and the abutting part 425 of being located at rake 424 tops, and horizontal part 423 is positioned at breach 421.Two side 43 rushes respectively and is provided with the retaining sheet 432 that protrudes out to the inside, and same retaining sheet 432 is held in forward first, second draw-in groove 117,157, and is mobile backward with main body 10, the collets 15 of restriction insulating body 1.Two side 43 also is respectively equipped with the brace 435 that extends back to be connected with wire, and brace 435 is provided with through hole 436, increases the connection reliability of brace 435 and wire.The hyoplastron 12 of insulating body 1 protrudes into forward spliced eye 45, and the contact site 25 of conducting terminal 2 is exposed to spliced eye 45, in order to contact with butt connector.

Ground strip 5 comprises the frame 51 of rectangle, from frame 51 tops and the bottom forward some elastic contact chips 52 of forming of punching press and bend backward from frame 51 medial margins extend and the some retaining pieces 53 of shielding casing 4 lugs 411 to buckle.Contact chip 52 realizes that in order to keep conflicting with exterior panel (not shown) shielding casing 4 keeps with the panel earth-continuity to eliminate the noise on the panel.In other embodiments, shielding casing 4 is one-body molded with ground strip 5.

During the utility model electric connector 100 assembling, at first, edge is respectively buried the main body 10 that forms conducting terminal 2 be fixed together with collets 15; Then, locating piece 3 upwards is fixed on the collets 15, the fixing piece 33 of locating piece 3 is immobilizated in the holding slot 155 of collets 15, and the substrate 31 of locating piece 3 upwards is resisted against on the collets 15, and the end face of locating piece 3 protuberances 331 and the end face of collets 15 are positioned at sustained height; Secondly, the ground connection afterbody 422 of shielding casing 4 is bent downwards as behind the horizontal structure, again shielding casing 4 is set on the insulating body 1 backward, ground connection afterbody 422 passes holding tank 34 backward, again ground connection afterbody 422 is restored to the original state afterwards, it is jointly fixing that the horizontal part 423 of ground connection afterbody 422 is contained in be positioned piece 3 and collets 15 of holding tank 34, abutting part 425 upwards is pressed on the front portion of the weld part 25 of the first earth terminal 212, so that shielding casing 4 and the first earth terminal 212 form grounded circuit, can effectively reach anti electromagnet interference function, substrate 31 parts of locating piece 3 are contained in the breach 421 of shielding casing 4 diapires 42, diapire 42 upwards is pressed on the protuberance 331 of collets 15 and locating piece 3, simultaneously, the supporting bracket 32 of locating piece 3 upwards is supported on the diapire 42, so with shielding casing 4, locating piece 3 and collets 15 triplicitys are together; At last, ground strip 5 is set in forward the front end of shielding casing 4, the contact chip 52 of ground strip 5 keeps conflicting with exterior panel, and retaining piece 53 moves with restriction ground strip 5 backward with shielding casing 4 lugs 411 phase buckles.When the utility model electric connector 100 is installed on the circuit board, form grounded circuit between panel, ground strip 5, shielding casing 4, the first earth terminal 212 and the circuit board, effectively increase the signal shielding effect of shielding casing 4 and reduced electromagnetic interference.

In sum, it below only is preferred embodiment of the present utility model, should not limit scope of the present utility model with this, be that every simple equivalence of doing according to the utility model claims and utility model description changes and modifies, all should still belong in the scope that the utility model patent contains.

Claims

1. electric connector, in order to be mounted on the circuit board, it comprises insulating body, be contained in the interior some conducting terminals of insulating body and the metal shielding casing of coated insulation body, described shielding casing is provided with to accommodate the spliced eye of butt connector, described insulating body has the hyoplastron that protrudes into forward spliced eye, described conducting terminal comprises at least one pair of difference signal terminal and the earth terminal adjacent with difference signal terminal, each conducting terminal has the contact site that row is located on the hyoplastron and is exposed to spliced eye, and it is characterized in that: described shielding casing also is provided with the ground connection afterbody that contacts with earth terminal.

2. electric connector according to claim 1, it is characterized in that: described conducting terminal has the weld part that extends back, and described ground connection afterbody contacts with the weld part of earth terminal.

3. electric connector according to claim 1 is characterized in that: described shielding casing comprises and encloses roof, diapire and the two side that forms described spliced eye that described ground connection afterbody links to each other with the diapire one.

4. according to claim 3 electric connector, it is characterized in that: described electric connector comprises the locating piece that upwards is fixed on the insulating body, locating piece has to the supporting bracket of upper support shielding casing diapire, and described ground connection afterbody is insulated body and locating piece is jointly fixing.

5. according to claim 4 electric connector, it is characterized in that: the described ground connection afterbody that described shielding casing diapire rear end is provided with breach and extends from a medial margin of breach, described locating piece comprises the described supporting bracket that upwards is supported on the insulating body and partly is contained in the substrate in the breach and extends forward from substrate, and described ground connection afterbody is jointly fixing by substrate and insulating body.

6. according to claim 5 electric connector, it is characterized in that: described insulating body is provided with opening towards the holding slot of locating piece, locating piece comprises and upwards protrudes out from substrate and be fixed on the fixing piece in the holding slot and run through the fixing piece along fore-and-aft direction, holding tank also is arranged with on substrate and runs through backward substrate, described ground connection afterbody comprise link to each other with diapire and be positioned at the horizontal part of breach, the rake that extends upwards and backwards from horizontal part and the abutting part of being located at the rake top, horizontal part is contained in breach and the holding tank simultaneously.

7. electric connector according to claim 6, it is characterized in that: described conducting terminal comprises the first end subgroup and meets the second terminal group of USB 2.0 host-host protocols, first, the combination of the second terminal group meets USB 3.0 host-host protocols, described first end subgroup comprises two pairs of the first difference signal terminal and one first earth terminal between this two couple the first difference signal terminal, described the second terminal group comprises one second earth terminal, one power supply terminal and a pair of the second difference signal terminal between this second earth terminal and power supply terminal, described ground connection afterbody is at least with first, one of them contact of the second earth terminal.

8. electric connector according to claim 7, it is characterized in that: described conducting terminal has and extends back and be arranged in weld part on the insulating body, weld part is arranged in a row and is positioned at the same level face along left and right directions, a weld part part is contained in insulating body, and another part is exposed to the electric connector outside.

9. electric connector according to claim 7, it is characterized in that: described the first earth terminal has the isolated a pair of described weld part in the left and right sides, the weld part of conducting terminal is arranged in a row at left and right directions, and putting in order is followed successively by: two weld parts of two weld parts of the weld part of power supply terminal, a pair of the first difference signal terminal, a weld part of the first earth terminal, the second difference signal terminal, an other weld part of the first earth terminal, two weld parts of other a pair of the first difference signal terminal, the weld part of the second earth terminal.

10. electric connector according to claim 7, it is characterized in that: described insulating body comprises main body and is fixed in collets on the main body, described hyoplastron is located on the main body, described first end subgroup is fixed or is inlayed to bury and takes shape on the main body, described the second terminal group is fixed or is inlayed to bury and takes shape on the collets, described locating piece is upwards to be fixed on the collets, and be positioned piece and collets of the horizontal part of ground connection afterbody are jointly fixing.

11. according to claim 1 to 10 described electric connectors wherein, it is characterized in that: described electric connector also comprise be set on the shielding casing or with the integrated ground strip of shielding casing, ground strip has the elastic contact chip that protrudes out forward to keep in touch with exterior panel.