CN103594871A - Electric connector - Google Patents
Electric connector Download PDFInfo
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- CN103594871A CN103594871A CN201210294605.7A CN201210294605A CN103594871A CN 103594871 A CN103594871 A CN 103594871A CN 201210294605 A CN201210294605 A CN 201210294605A CN 103594871 A CN103594871 A CN 103594871A
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- electric connector
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Abstract
The invention discloses an electric connector which is applied to a connector comprising a spring terminal and is especially suitable for a QSFP. The electric connector comprises an insulation body and a plurality of conductive terminals installed in the insulation body, wherein the insulation body comprises a butt joint surface and a first accommodation cavity penetrating the butt joint surface; the plurality of conductive terminals comprise a plurality of first conductive terminals disposed in an upper row and a plurality of second conductive terminals disposed in a lower row; the first conductive terminals comprise a plurality of first grounding terminals and a plurality of first signal terminals; and the second conductive terminals comprise a plurality of second grounding terminals and a plurality of second signal terminals. The electric connector further comprises a grounding sheet connoting the first grounding terminal and the second grounding terminals. By such arrangements, the first grounding terminals and the second grounding terminals are connected so that the potential difference of each grounding terminal is o, the crosstalk is reduced and the high-frequency transmission capability is improved.
Description
Technical field
The present invention relates to a kind of electric connector, relate in particular to a kind of electric connector being installed on circuit board.
Background technology
Prior art related to the present invention refers to No. 8,142,207 B1, the United States Patent (USP) US of on March 27th, 2012 bulletin, and this patent has disclosed a kind of electric connector, and it comprises insulating body and is assembled in the some conducting terminals in insulating body.Described conducting terminal comprises row's terminal and lower row's terminal, and described upper row's terminal comprises some upper earth terminals and some upper signal terminals, and described lower row's terminal comprises some lower earth terminals and some lower signal terminals.Yet described upper earth terminal and lower earth terminal separate, thereby shield effectiveness is poor.Particularly, when the electric connector of this design is applied to high-frequency transmission, can produce serious signal cross-talk (cross-talk).In addition, described upper row's terminal and lower row's terminal include an elastic contact arm and are positioned at the contact site of this elastic contact arm end.Yet the gradient of this elastic contact arm is less, contact site place is less perpendicular to the confining force (unmating force) of contact site, easily causes unstable with docking of butt connector.
Therefore, be necessary existing technology to improve, to overcome above technical problem.
Summary of the invention
The object of the present invention is to provide that a kind of signal cross-talk is low, high-frequency transmission ability electric connector preferably.
For solving, realize above-mentioned purpose, the present invention adopts following technical scheme: a kind of electric connector, it comprises insulating body and is installed on the some conducting terminals in insulating body, described insulating body comprises interface, run through the first host cavity of interface and run through interface and be positioned at the second host cavity of the first host cavity below, wherein said the first host cavity is in order to accommodate the hyoplastron of butt connector, described the second host cavity is in order to accommodate the location-plate of described butt connector, described some conducting terminals comprise some the first conducting terminals that are positioned at row and some the second conducting terminals that are positioned at lower row, described the first conducting terminal comprises the first contact site extending down in the first host cavity, described the second conducting terminal comprises the second contact site extending upwardly in the first host cavity, described the first conducting terminal comprises some the first earth terminals and some first signal terminals, described the second conducting terminal comprises some the second earth terminals and some secondary signal terminals, described electric connector also comprises a ground strip that the first earth terminal and the second earth terminal are all linked together.
As further improved technical scheme of the present invention, described ground strip comprises body, some the first contact fingers that extend from body rear end and some the second contact fingers that extend from body front end, wherein the first contact finger contacts with the first earth terminal, and the second contact finger contacts with the second earth terminal.
As further improved technical scheme of the present invention, described the first contact finger and the second contact finger are all cantilever-shaped, and described the first contact finger bends downwards, and described the second contact finger is bending upwards.
As further improved technical scheme of the present invention, described insulating body comprises the rear surface relative with interface and runs through the second mounting groove of this rear surface, described electric connector comprises and being coated on described the second conducting terminal to integrate the second collets of described the second conducting terminal, described the second collets are contained in the second mounting groove, and described ground strip is fixed on the second collets.
As further improved technical scheme of the present invention, described the second collets comprise upper surface and run through at least one holddown groove of this upper surface, the body of described ground strip adheres on this upper surface, and described ground strip also comprises from body and bends and be fastened in the stator in described holddown groove downwards.
As further improved technical scheme of the present invention, described insulating body comprises the first mounting groove that runs through this rear surface and be positioned at the second mounting groove top, described electric connector comprises and being coated on described the first conducting terminal to integrate the first collets of described the first conducting terminal, and described the first collets are contained in the first mounting groove.
As further improved technical scheme of the present invention, described the second collets comprise rear end face and are arranged at the some spaced location notch on described rear end face, and described the first earth terminal and the first contact finger all extend in location notch and come in contact in these location notchs.
As further improved technical scheme of the present invention, the rear surface of described insulating body is provided with the some stopper slots that align with described location notch in the vertical direction, and described the first earth terminal is contained in corresponding stopper slot.
As further improved technical scheme of the present invention, described the first conducting terminal comprises the first cantilever-shaped contact arm, described the first contact site is on this first contact arm, described the first contact arm also comprises and is positioned at the first contact site rear end and the bending first fold turn of bilge of inflection downwards more upwards, described the second conducting terminal comprises the second cantilever-shaped contact arm, described the second contact site is on this second contact arm, and described the second contact arm is also provided with and is positioned at the second contact site rear end and downward bending the second bending part of inflection upwards again.
As further improved technical scheme of the present invention, described first fold turn of bilge is provided with the first summit, and described the second kink is provided with the second summit, and the height between described the first summit and described the second summit is greater than the height between the first contact site and the second contact site.
Compared with prior art, electric connector of the present invention is provided with the ground strip that the first earth terminal and the second earth terminal are linked together, and so arranges, and has reduced signal cross-talk (cross-talk), has improved high-frequency transmission ability.
Accompanying drawing explanation
Fig. 1 is the stereogram of electric connector of the present invention.
Fig. 2 is the stereogram of another angle of Fig. 1.
Fig. 3 is the stereogram of the insulating body of electric connector in Fig. 1.
Fig. 4 is that insulating body in Fig. 3 is in the stereogram of another angle.
Fig. 5 is the stereogram of first, second terminal module of electric connector in Fig. 1.
Fig. 6 is the end view of first, second terminal module in Fig. 5.
Fig. 7 is the stereogram of the first terminal module in Fig. 5.
Fig. 8 is the stereogram of the second terminal module in Fig. 5.
Fig. 9 is the stereogram of first, second collets in first, second terminal module in Fig. 5.
Figure 10 is the stereogram that some the first conducting terminals, the second terminal module and the ground strip of the first terminal module coordinates each other.
Figure 11 is the stereogram that some first conducting terminals of the first terminal module coordinate each other with ground strip.
Figure 12 is the stereogram of ground strip in Figure 10.
Embodiment
Shown in please refer to the drawing 1 and Fig. 2, the present invention has disclosed a kind of electric connector 100, and it comprises insulating body 1 and is installed on the some conducting terminals 2 in insulating body 1.In the illustrated embodiment, described electric connector 100 is QSFP (Quad Small Form-factor Pluggable) plate terminal adapter, and it,, in order to coordinate with butt connector (not shown), carries out transfer of data.Described conducting terminal 2 can be installed in insulating body 1 by direct-insert mode, or is installed in insulating body 1 (being detailed later) by the form of terminal module.
Shown in please refer to the drawing 1 to Fig. 4, described insulating body 1 comprise interface 11, with respect to the rear surface 12 of interface 11, run through interface 11 the first host cavity 111, run through interface 11 and be positioned at the first host cavity 111 belows the second host cavity 112, run through the first mounting groove 121 of rear surface 12 and run through rear surface 12 and be positioned at the second mounting groove 122 of the first mounting groove 121 belows.From entity structure, described insulating body 1 comprises roof 13, diapire 14, two side 15 and a pair of supporting walls 16 to downward-extension from diapire 14 both sides, wherein said the first host cavity 111 is surrounded jointly by described roof 13, diapire 14 and two side 15, and described the second host cavity 112 is surrounded jointly by described diapire 14 and supporting walls 16.Described the first host cavity 111 is in order to accommodate the hyoplastron of butt connector, and described the second host cavity 112 is in order to accommodate the location-plate of described butt connector.The upper and lower surface of the hyoplastron of butt connector is equipped with flat metal gasket, in order to contact to realize transfer of data with conducting terminal 2.
Described roof 13 is provided with some the first terminal accepting grooves 131 that are communicated with the first host cavity 111, and described the first terminal accepting groove 131 further upwards runs through described roof 13, to provide conducting terminal 2 enough deformation spaces.Similarly, described diapire 14 is provided with some the second terminal containing slots 141 that are communicated with the second host cavity 112, and described the second terminal containing slot 141 further runs through described diapire 14 downwards, to provide conducting terminal 2 enough deformation spaces.Each supporting walls 16 is provided with the reference column 161 of downward protrusion, in order to described electric connector 100 is positioned on circuit board.The rear surface 12 of described insulating body 1 is provided with some spaced stopper slots 123, in order to locate conducting terminal 2.
Shown in please refer to the drawing 5 to Fig. 8, described conducting terminal 2 comprises some the first conducting terminals 21 that are positioned at row and some the second conducting terminals 22 that are positioned at lower row.In illustrative embodiments of the present invention, for the ease of first, second conducting terminal 21,22 is installed, described electric connector 100 comprises and being coated on described the first conducting terminal 21 to integrate the first collets 3 of described the first conducting terminal 21, and is coated on described the second conducting terminal 22 to integrate the second collets 4 of described the second conducting terminal 22.Also can understand like this, described first, second conducting terminal 21,22 is inlayed respectively and is buried moulding (insert-molding) in first, second collets 3,4, so that assembling.
From structure, it is cantilever-shaped and corresponding to the first contact arm 23 of the first terminal accepting groove 131 that described the first conducting terminal 21 comprises, described the first contact arm 23 comprises and extends into the first contact site 231 in the first host cavity 111 and be positioned at the first contact site 231 rear ends and the bending first fold turn of bilge 232 of inflection downwards more upwards.Described first fold turn of bilge 232 is provided with the first summit 233.Due to the existence of described first fold turn of bilge 232, on the whole, the downward-sloping angle (being gradient) of the first contact arm 23 becomes large, that is to say, perpendicular to the component of the first contact site 231, has greatly increased.Described the first contact arm 23 also comprises the first horizontal part 234 extending back from first fold turn of bilge 232 and the first guidance part 235 extending obliquely from the first contact site 231.In addition, described the first conducting terminal 21 also comprises from the first extension 236 of the first horizontal part 234 vertical extension downwards and from the first extension 236 successively horizontally extending the first weld part 237.
Similarly, it is cantilever-shaped and corresponding to the second contact arm 24 of the second terminal containing slot 141 that described the second conducting terminal 22 comprises, described the second contact arm 24 comprises and extends into the second contact site 241 in the first host cavity 111 and be positioned at the second contact site 241 rear ends and downward bending the second bending part 242 of inflection upwards again.Described the second bending part 242 is provided with the second summit 243.Due to the existence of described the second bending part 242, on the whole, the acclivitous angle of the second contact arm 24 (being gradient) becomes large, that is to say, perpendicular to the component of the second contact site 241, has greatly increased.Described the second contact arm 24 also comprises the second horizontal part 244 extending back from the second bending part 242 and the second guidance part 245 extending obliquely from the second contact site 241.In addition, described the second conducting terminal 22 also comprises from the second extension 246 of the second horizontal part 244 vertical extension downwards and from the second extension 246 successively horizontally extending the second weld part 247.
On the height-limited system of the first horizontal part 234 can not be again, carry, the height of the second horizontal part 244 be subject to structural limitations can not be again in situation about declining, be in height H 3 situation that can not increase, first fold turn of bilge 232 and the second bending part 242 by bending again the mode of inflection improve the slope of the first contact arm 23 and the second contact arm 24.Because the gradient of described first, second contact arm 23,24 has increased, component perpendicular to first, second contact site 231,241 has increased greatly, that is to say, the confining force of the conducting terminal 2 of electric connector 100 of the present invention (unmating force) has increased.When the hyoplastron of butt connector, extract the first host cavity 111 when interior, it need to overcome larger confining force.The technique effect bringing is thus, the hyoplastron of butt connector can be by the stable clamping of first, second contact arm 23,24, and then makes transfer of data stable.Height H 1 between described the first summit 233 and described the second summit 243 is greater than the height H 2 between the first contact site 231 and the second contact site 232.Described the first horizontal part 234 and the second horizontal part 244 are parallel to each other, height H 3 between described the first horizontal part 234 and the second horizontal part 244 is greater than the height H 2 between the first contact site 231 and the second contact site 241, but is less than the height H 1 between described the first summit 233 and described the second summit 243.Described the first guidance part 235 and the second guidance part 245 form horn mouth, in order to guide the insertion of butt connector hyoplastron.
Shown in please refer to the drawing 10 and Figure 11, from terminal, define, described the first conducting terminal 21 comprises some the first earth terminals 251 and some first signal terminals 252, and described the second conducting terminal 22 comprises some the second earth terminals 261 and some secondary signal terminals 262.For the first earth terminal 251 and the second earth terminal 261 are coupled together to form larger screen, described electric connector 100 also comprises a ground strip 5.Shown in please refer to the drawing 12, described ground strip 5 comprises flat body 50, some the first contact fingers 51 that extend from body 50 rear ends, some the second contact fingers 52 that extend from body 50 front ends and two stators 53 that bend from body both sides downwards.In the illustrated embodiment, described the first contact finger 51 and the second contact finger 52 are all cantilever-shaped, to guarantee that it has the elasticity that foot has, and increases the contact reliability with the first earth terminal 251 and the second earth terminal 261.Described the first contact finger 51 bends downwards, and in order to contact with the first earth terminal 251, described the second contact finger 52 upwards bends in order to contact with the second earth terminal 261.
Described the first collets 3 comprise at least one first lock projections 32 that is positioned at the first inclined-plane 31 of upper end and is positioned at side.Described the first inclined-plane 31 inserts in described the first mounting groove 121 in order to guide described the first collets 3, and described the first lock projections 32 is in order to compress mutually to fix described the first collets 3 with described the first mounting groove 121.
Described the second collets 4 comprise at least one second lock projections 42 that is positioned at the second inclined-plane 41 of lower end and is positioned at side.Described the second inclined-plane 41 inserts in described the second mounting groove 122 in order to guide described the second collets 4, and described the second lock projections 42 is in order to compress mutually to fix described the second collets 4 with described the second mounting groove 122.Described the second collets 4 comprise rear end face 43, be arranged at some spaced location notch 44, the upper surface 45 on described rear end face 43 and run through two holddown grooves 46 of this upper surface 45.The first extension 236 of described the first conducting terminal 21 is positioned in corresponding location notch 44.Shown in please refer to the drawing 2, the setting of aliging respectively of described location notch 44 and the stopper slot 123 of insulating body 1, and in order to common location the first extension 236, to play preferably locating effect.Described the first contact finger 51 extends into equally in part location notch 44 and is positioned at the front end of the first extension 236 of corresponding the first earth terminal 251, and the first extension 236 and first contact finger 51 of described the first earth terminal come in contact in these location notchs 44.Described the second contact finger 52 contacts with the second extension 246 of the second earth terminal 261.Therefore the length of described the second collets 4 is greater than the length of described the first collets 3, and the second collets 4 have enough spaces location notch 44 is set.In addition, shown in please refer to the drawing 10, the body 50 of described ground strip 5 adheres on upper surface 45, and described stator 53 is fastened in holddown groove 46 fixing to realize.In the illustrated embodiment, described ground strip 5 assemblings are fixed on the second collets 4, and certainly, in other embodiments, described ground strip 5 also can be fixed on insulating body 1.
It should be noted that, in electric connector 100 of the present invention, owing to need to stepping down to the assembling of the second collets 4 (that is to say and escape material in the position of 12 bottoms, corresponding insulating body 1 rear surface), in this case, the position of escaping material there is no stopper slot 123.Because the position of escaping material is again just near the first weld part 237, add the length of the first extension 236 own larger, if location structure is not set, first extension 236 of leaving is herein exposed to outside, will be difficult to because of the coplane degree of the first weld part 237 assurance, and have a strong impact on the welding effect of the first weld part 237.In order to address the above problem, by the location notch 44 of location the first extension 236 is set on the rear end face 43 at the second collets 4, well solved long-standing technical problem in this area.In addition, by ground strip 5, the first earth terminal 251 and the second earth terminal 261 are all linked together, the potential difference that makes each earth terminal is 0, thereby has reduced signal cross-talk (cross-talk), has improved high-frequency transmission ability.
In sum, above embodiment is only for illustrating the present invention and unrestricted technical scheme described in the invention, although this specification has been described in detail the present invention with reference to the above embodiments, but, those of ordinary skill in the art is to be understood that, person of ordinary skill in the field still can modify or be equal to replacement the present invention, and all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, all should be encompassed within the scope of claim of the present invention.
Claims (10)
1. an electric connector (100), it comprises insulating body (1) and is installed on the some conducting terminals (2) in insulating body (1), described insulating body (1) comprises interface (11), run through first host cavity (111) of interface (11) and run through interface (11) and be positioned at second host cavity (112) of the first host cavity (111) below, wherein said the first host cavity (111) is in order to accommodate the hyoplastron of butt connector, described the second host cavity (112) is in order to accommodate the location-plate of described butt connector, described some conducting terminals (2) comprise some the first conducting terminals (21) that are positioned at row and some the second conducting terminals (22) that are positioned at lower row, described the first conducting terminal (21) comprises the first contact site (231) extending down in the first host cavity (111), described the second conducting terminal (22) comprises the second contact site (241) extending upwardly in the first host cavity (111), it is characterized in that: described the first conducting terminal (21) comprises some the first earth terminals (251) and some first signal terminals (252), described the second conducting terminal (22) comprises some the second earth terminals (261) and some secondary signal terminals (262), described electric connector (100) also comprises the ground strip (5) that the first earth terminal (251) and the second earth terminal (261) are all linked together.
2. electric connector as claimed in claim 1, it is characterized in that: described ground strip (5) comprises body (50), some the first contact fingers (51) that extend from body rear end and some the second contact fingers (52) that extend from body front end, wherein the first contact finger (51) contacts with the first earth terminal (251), and the second contact finger (52) contacts with the second earth terminal (261).
3. electric connector as claimed in claim 2, it is characterized in that: described the first contact finger (51) and the second contact finger (52) are all cantilever-shaped, and described the first contact finger (51) bends downwards, described the second contact finger (52) is bending upwards.
4. electric connector as claimed in claim 2, it is characterized in that: described insulating body (1) comprises the rear surface (12) relative with interface (11) and runs through second mounting groove (122) of this rear surface (12), described electric connector (100) comprises that being coated on described the second conducting terminal (22) goes up to integrate second collets (4) of described the second conducting terminal, described the second collets (4) are contained in the second mounting groove (122), and described ground strip (5) is fixed on the second collets (4).
5. electric connector as claimed in claim 4, it is characterized in that: described the second collets (4) comprise upper surface (45) and run through at least one holddown groove (46) of this upper surface, it is upper that the body (50) of described ground strip (5) adheres on this upper surface (45), and described ground strip (5) also comprises the stator (53) in body (50) bends and be fastened in described holddown groove (46) downwards.
6. electric connector as claimed in claim 4, it is characterized in that: described insulating body (1) comprises the first mounting groove (121) that runs through this rear surface (12) and be positioned at the second mounting groove (122) top, described electric connector (100) comprises that being coated on described the first conducting terminal (21) goes up to integrate first collets (3) of described the first conducting terminal, and described the first collets (3) are contained in the first mounting groove (121).
7. electric connector as claimed in claim 4, it is characterized in that: described the second collets (4) comprise rear end face (43) and be arranged at the some spaced location notch (44) on described rear end face, described the first earth terminal (251) and the first contact finger (51) all extend in location notch (44) and come in contact in these location notchs (44).
8. electric connector as claimed in claim 7, it is characterized in that: the rear surface (12) of described insulating body (1) is provided with the some stopper slots (123) that align with described location notch (44) in the vertical direction, and described the first earth terminal (251) is contained in corresponding stopper slot (123).
9. the electric connector as described in any one in claim 1 to 8, it is characterized in that: described the first conducting terminal (21) comprises cantilever-shaped the first contact arm (23), described the first contact site (231) is positioned on this first contact arm (23), described the first contact arm (23) also comprises and is positioned at the first contact site (231) rear end and the bending first fold turn of bilge (232) of inflection downwards more upwards, described the second conducting terminal (22) comprises cantilever-shaped the second contact arm (24), described the second contact site (241) is positioned on this second contact arm (24), described the second contact arm (24) is also provided with and is positioned at the second contact site (241) rear end and downward bending second bending part (242) of inflection upwards again.
10. electric connector as claimed in claim 9, it is characterized in that: described first fold turn of bilge (232) is provided with the first summit (233), described the second kink (242) is provided with the second summit (243), and the height (H1) between described the first summit (233) and described the second summit (243) is greater than the height (H2) between the first contact site (231) and the second contact site (241).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210294605.7A CN103594871A (en) | 2012-08-18 | 2012-08-18 | Electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210294605.7A CN103594871A (en) | 2012-08-18 | 2012-08-18 | Electric connector |
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| Publication Number | Publication Date |
|---|---|
| CN103594871A true CN103594871A (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210294605.7A Pending CN103594871A (en) | 2012-08-18 | 2012-08-18 | Electric connector |
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| CN (1) | CN103594871A (en) |
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| CN103904493A (en) * | 2014-04-18 | 2014-07-02 | 苏州雷鸿电子科技有限公司 | Connector and manufacturing method thereof |
| CN105720414A (en) * | 2016-03-11 | 2016-06-29 | 富加宜连接器（东莞）有限公司 | High-speed connector with improved forming structure and capable of maintaining signal completeness |
| CN106099514A (en) * | 2016-08-05 | 2016-11-09 | 富加宜连接器（东莞）有限公司 | A kind of QSFP adapter of high frequency signal transmission |
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Application publication date: 20140219 |