Summary of the invention
The purpose of the present invention is to provide a kind of female end signal transmission module with metal shielding board solves to pass due to signalThe structure of plastic packaging module in defeated module be easy to cause installation not convenient enough, is easy to influence that crosstalk occurs between signal pair, andThe big problem of return flow path between signal pair.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of female end signal transmission module with metal shielding board, including signal transmission module and be fixed on signal transmission moduleMetal shielding board, above-mentioned signal transmission module includes module housing, signal transmission reed and plastic packaging module, above-mentioned module housingOn offer multiple spill cavitys, above-mentioned signal transmission reed is mounted in concave shaped cavity body, above-mentioned plastic packaging module and spill cavityIt corresponds, and is covered on above-mentioned spill cavity and closes spill cavity, so that signal transmission reed is formed closed signal logicalRoad；It is linked together between plastic packaging module on adjacent above-mentioned spill cavity by transverse bar, and the both ends of above-mentioned plastic packaging modulePortion is nearby respectively connected with transverse bar；More than two bridge structures, above-mentioned metallic shield are arranged at intervals on above-mentioned metal shielding boardIt is arranged at intervals with more than two bulge-structures in a side of plate, and is provided with salient point above above-mentioned bulge-structure, onBridge structure and bulge-structure are stated towards the outside of metal shielding board protrusion.
Preferably, being arranged between two transverse bars at above-mentioned plastic packaging module both ends in 90 degree of directions, and above-mentioned moduleGroove compatible with above-mentioned transverse bar is provided on shell.
Preferably, more than two above-mentioned bridge structures are uniformly arranged according to cornerwise mode.
Preferably, same direction of more than two above-mentioned bridge structures towards metal shielding board, and in above-mentioned goldBelong to and be provided with bar shaped groove at the position for corresponding to bridge structure on barricade, the both ends of above-mentioned bridge structure are movably connected withAt the both ends of bar shaped groove.
Preferably, above-mentioned spill cavity is distributed according to the differential signal wiring path of signal transmission reed, above-mentioned spillThe cavity edge of cavity and the difference track edge of differential signal transmission reed have interval.
Preferably, above-mentioned difference wiring path is to extend to the adjacent of the module housing from a side of module housingSide edge, and the contact terminal of above-mentioned signal transmission reed stretches to the outside of module housing.
Preferably, two above-mentioned signal transmission reed composition differential pairs are mounted in the same concave shaped cavity body, and everyTwo signals transmission reed in a differential pair is symmetrical set.
Preferably, above-mentioned bulge-structure is located at when above-mentioned metal shielding board is mounted on above-mentioned signal transmission moduleBetween the adjacent Difference signal pair of signal transmission module.
Preferably, the surface of above-mentioned module housing is covered with electroplated layer.
Preferably, offering on side of the above-mentioned module housing far from above-mentioned signal transmission switch jaw contact terminal for pacifyingThe shielding part mounting groove of shielding part is filled, is provided with bending protrusion, above-mentioned bending on above-mentioned metal shielding board at corresponding positionProtrusion is adapted with above-mentioned shielding part mounting groove, and the protrusion side of the overbending direction of above-mentioned bending protrusion and above-mentioned bridge structureTo opposite.
Preferably, one end opposite with bending protrusion on above-mentioned metal shielding board is arranged at intervals with for solid with pedestalDetermine, the protruding teeth of conducting, is provided in a side of above-mentioned metal shielding board for " L " type latch fixed with pedestal.
Compared with prior art, the beneficial effects of the present invention are:
It is multiple by being arranged in the module housing in the female end signal transmission module of high-speed differential signal connector in the present inventionThe cavity is distributed according to difference wiring path and signal transmission reed is fixed in concave shaped cavity body, thus shape by spill cavityAt closed signal path, finally makes the plating of spill cavity be distributed in three faces of differential signal transmission surrounding, can reduceInterfering with each other between Difference signal pair.
On the other hand the present invention is defined the structure of plastic packaging module, is on the one hand to install by the setting of transverse barWhen convenience, on the other hand can preferably fixed signal transmission reed constitute differential pair, be further reduced differential pair itBetween signal cross-talk.
Metal shielding board is installed on signal transmission module in the present invention, and two or more is set on metal shielding boardBridge structure, after metal shielding board and female end signal transmission module are fixed, multiple female end signal transmission modules can be intoRow laid out in parallel can make to realize that multiple spot connects between metal shielding board and the shielding shell of adjacent female end signal transmission moduleIt is logical, to shorten return flow path.
Bulge-structure in the present invention can be formed around telltale hole ground hole, and be located at signal differential to two-by-two itBetween, to reduce the crosstalk between signal.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, rightThe present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, andIt is not used in the restriction present invention.
For one embodiment of the present of invention, referring to Fig. 1,2,5, a kind of female end signal transmission mould with metal shielding boardBlock, including signal transmission module and the metal shielding board 200 being fixed on signal transmission module, metal shielding board 200 is mounted onOn signal transmission module, differential signal can be shielded, while by the setting of metal shielding board, further shorten refluxPath.
Above-mentioned signal transmission module includes module housing 101, signal transmission reed 102 and plastic packaging module 103, above-mentioned moduleMultiple spill cavitys 104 are offered on shell 101, above-mentioned signal transmission reed 102 is mounted in spill cavity 104, above-mentioned modelingIt seals module 103 and spill cavity 104 corresponds, and be covered on above-mentioned spill cavity 104 and close spill cavity 104, makeSignal transmission reed 102 forms closed signal path；Due to being provided in module housing 101 in the signal transmission moduleSpill cavity, and be fixed in concave shaped cavity body by the Difference signal pair that signal transmission reed 102 forms, module housing is carried outAfter plating so that the plating of spill cavity is distributed in three faces of differential signal transmission surrounding, can reduce Difference signal pair itBetween interfere with each other.
It is linked together between plastic packaging module 103 on adjacent above-mentioned spill cavity 104 by transverse bar 107, and above-mentionedThe both ends of plastic packaging module 103 are nearby respectively connected with transverse bar 107.For the transverse bar 107 in the plastic packaging module 103, each is recessedPlastic packaging module compatible with the spill cavity 104 is provided on shape cavity 104, in order to embody the stabilization after structure assemblingProperty, therefore the plastic packaging module on each spill cavity 104 is linked together by transverse bar 107, and the two of plastic packaging module 103End is nearby provided with transverse bar and is connected and fixed, and the convenient differential pair constituted to signal transmission reed 102 carries out stablizing fixation, togetherThe convenience of Shi Shixian structure installation and integrally-built stability.
More than two bridge structures 201, above-mentioned metal shielding board 200 are arranged at intervals on above-mentioned metal shielding board 200A side on be arranged at intervals with more than two bulge-structures, and the top of above-mentioned bulge-structure 206 is provided with salient point207, and above-mentioned bridge structure 201 and bulge-structure 206 are towards the outside of metal shielding board 200 protrusion.The bridge structure201 be the arch-type structure for protruding from barricade main body 200, which is a side in barricade main body 200On, it is the protrusion for amplifying formation upwards on the side, salient point is used for and adjacent male end signal transmission module or female end signalTransmission module is contacted.The purpose of more than two bridge structures and bulge-structure is arranged in interval on metal shielding board 200It is after metal shielding board 200 is fixed with female end signal transmission module, multiple female end signal transmission modules will do it side by sideArrangement can make to realize that multiple spot is connected between metal shielding board 200 and the shielding shell of adjacent female end signal transmission module, fromAnd shorten return flow path.
Fig. 3 shows the structural schematic diagram of module housing 101, and according to the display of module housing 101, spill cavity 104 is setIt sets on the surface of module housing 101, and spill cavity 104 is presented curved channel-shaped, and the spill cavity 104 is from moduleA side of shell 101 is extended towards adjacent a side.
Fig. 4 shows that signal transmission reed 102 is mounted on the structural schematic diagram in module housing 101, when signal transmits springWhen piece 102 is mounted in spill cavity 104, signal transmits reed 102 to be installed along the direction of spill cavity 104.When installation, modelingIt is two pieces that envelope module 103, which is divided to, and signal transmits 102 every two of reed and forms a differential pair, installs a signal transmission reed 102Afterwards just cover one piece of plastic packaging module 103 so that between the same differential pair two signals transmission reed 102 formed away fromFrom convenient for forming cooperation with the contact pin of male end.
Further, for another embodiment of the invention, on the basis of the above embodiments, above-mentioned plastic packaging moduleIn 90 degree of direction settings between two transverse bars 107 at 103 both ends, and it is provided in above-mentioned module housing 101 and above-mentioned crossThe compatible groove 108 of muscle 107.
The connection structure of plastic packaging module 103 and transverse bar 107 is shown in Fig. 6, as seen from Figure 6, in the embodimentIn, three plastic packaging modules 103 are respectively provided with corresponding to three spill cavitys 104, by two in 90 in plastic packaging module 103Plastic packaging module 103 is connected to become an entirety by the transverse bar 107 of degree direction setting, and when installation only needs will according to corresponding positionThe plastic packaging module 103 being linked together by transverse bar 107 covers on spill cavity 104, and stabilized structure is easy for installation, simultaneouslyIn order to be bonded transverse bar 107 also more with module housing 101, therefore it is provided in module housing 101 and is adapted with transverse bar 107Groove 108；In addition to all grooves opened up or concave shaped cavity body is enable to reduce between Difference signal pair to the maximum extentInterfere with each other, therefore preferably two transverse bars 107 in plastic packaging module 103 are arranged in 90 degree directions, avoid arbitrarily slottingInfluence the crosstalk between signal.
Further, on the basis of the above embodiments, more than two above-mentioned for another embodiment of the inventionBridge structure 201 is uniformly arranged according to cornerwise mode, i.e., the central point of more than two bridge structures 201 is distributed sameIt on diagonal line, i.e., uniformly arranges on metal shielding board 200 according to cornerwise direction, arrangement mode in this way can makeMetal shielding board 200 is obtained to be distributed on different x wires or on vertical line from multiple connectivity points of signal transmission module, fromAnd further realize and realize that the multiple spot of different location is connected between metal shielding board 200 and the shielding shell of signal transmission module,Shorten return flow path.
Further, on the basis of the above embodiments, more than two above-mentioned for another embodiment of the inventionBridge structure 201 towards metal shielding board 200 same direction, bridge structure towards same direction, when enabling to stress byThe angle of power is consistent, convenient for the stability of structure, and corresponding to the position of bridge structure 201 on above-mentioned metal shielding board 200The place of setting is provided with bar shaped groove 202, and the both ends of above-mentioned bridge structure 201 are respectively and movably connected to the both ends of bar shaped groove 202, shouldBar shaped groove 202 is groove body closed at both ends, hollow, and setting bar shaped groove is convenient to be attached bridge structure, also forBarricade can be made to be connected to the more stably multiple spot of signal transmission module；On the other hand, which is movably connected inThe rotation of certain angle can be presented in the both ends of above-mentioned bar shaped groove 202, i.e. bridge structure 201, realize that such structure can adoptWith hinged mode.By the simulation analysis of mechanics, the rotation of bridge structure at an angle is fixedly connected compared to bridge structureWhen have smaller stress and equivalent stress, i.e., stronger interaction force is able to bear by way of flexible connection, thusSo that total is more stable.
Further, for another embodiment of the invention, on the basis of the above embodiments, above-mentioned spill cavity104 are distributed according to the differential signal wiring path of signal transmission reed 102, the cavity edge and difference of above-mentioned spill cavity 104The difference track edge that signal transmits reed 102 has interval.Above-mentioned difference wiring path is a side from module housing 101The adjacent side edge of the module housing 101 is extended to, and the contact terminal 1021 of above-mentioned signal transmission reed 102 stretches to mouldThe outside of block shell 101.Since signal transmission reed 102 will carry out signal transmitting, then the both ends of signal transmission reed 102 all may be usedSignal transmission can be carried out with other structures, therefore according to the transmission principle of signal connector, signal transmits reed 102 and arc is presentedBending setting, therefore difference wiring path is the adjacent side that the module housing 101 is extended to from a side of module housing 101At side, the contact terminal 1021 to make signal transmit reed 102 is cooperated with male end contact pin, and signal transmission reed 102 connectsContravention 1021 stretches to the outside of module housing 101.Cavity is distributed according to differential path in the present embodiment, is on the one hand contracted as far as possibleShort return flow path reduces crosstalk between differential signal, and on the other hand, spill cavity and differential signal guarantee certain distance, be in order toPreferably carry out impedance matching.
Further, for another embodiment of the invention, on the basis of the above embodiments, two above-mentioned signals are passedDefeated reed 102 forms differential pair and is mounted in the same spill cavity 104, and two signals in each differential pair transmit springPiece 102 is symmetrical set.In the present embodiment, in order to be cooperated with the contact pin in Male end connector, therefore the same concave shaped cavityNeed to fix two signal transmission reeds 102 in body 104, and two signal transmission reeds 102 form differential pair and are used for and public affairsThe contact pin at end is cooperated, and the contact terminal that signal transmission reed 102 is matched with male end contact pin is bent in opposite waveformSetting, and signal transmission is carried out with male end contact pin.
Further, for one embodiment of the present of invention, on the basis of the above embodiments, when above-mentioned metal shielding boardWhen being mounted on above-mentioned female end signal transmission module, above-mentioned bulge-structure 206 is located at male end contact pin or female end signal transmission moduleBetween adjacent Difference signal pair.As shown in fig. 7, the bulge-structure on metal shielding board is mounted on female end signal transmission moduleWhen, which will form ground hole 208 between signal differential is to 301, therefore bulge-structure should be located at female end signalBetween the adjacent Difference signal pair of transmission module, to reduce the crosstalk between signal.
Further, for another embodiment of the invention, on the basis of the above embodiments, above-mentioned module housing101 surface is covered with electroplated layer.Electroplated layer can be the metal material of the conduction such as electronickelling, gold, silver, copper；In addition to moduleShell 101 can also be taken the case where not being electroplated, and metallic fiber is such as added in module housing, and adding graphite etc., all can make mouldThe conductive appropriate materials of block shell 101；After plating, it is poor that the plating of spill cavity is distributed in transmission on module housing 101 surfaceThree faces of sub-signal surrounding shield the signal interference between Difference signal pair；Occur additionally, due to signals transmission metalSkin effect, module housing 101 be electroplated after can approximation regard metal as, be centered around around differential signal, as differential signal flow backPath reduces the interference of Difference signal pair therebetween, shortens signal return flow path.
Further, for another embodiment of the invention, on the basis of the above embodiments, above-mentioned module housingThe shielding part mounting groove for installing shielding part is offered on 101 sides far from above-mentioned signal transmission 102 contact terminal of reed105, be provided with bending protrusion 203 on above-mentioned metal shielding board 200 at corresponding position, above-mentioned bending protrusion 203 with it is above-mentionedShielding part mounting groove 105 is adapted, and the protrusion side of the overbending direction of above-mentioned bending protrusion 203 and above-mentioned bridge structure 201To opposite.When metal screen 200 is mounted in module housing 101, the bending protrusion 203 of metal screen 200 is just insertedEnter in the shielding part mounting groove 105 in module housing 101, can enable metal screen 200 it is more firm be fixed on mouldOn block shell 101, metal can be regarded as after being electroplated due to module housing 101, the setting of the structure can also ensure that moduleMultiple spot is connected between shell 101 and metal screen 200.
The end that shielding part mounting groove 105 is arranged in above-mentioned module housing 101 is provided with installation protrusion 106.The present embodimentIn, setting installation protrusion 106 is convenient for that female end progress transmission module is mounted on female end pedestal and is clamped by tail card.
Further, for another embodiment of the invention, on the basis of the above embodiments, above-mentioned metal shielding boardOne end opposite with bending protrusion 203 is arranged at intervals with the protruding teeth 204 for fixing, being connected with pedestal, above-mentioned metal on 200It is provided in a side of barricade 200 for " L " the type latch 205 fixed with pedestal.Protruding teeth in the present embodiment is mainFor the conducting effect with pedestal to be fixed and realized with pedestal, " L " type latch is to be fixed with pedestal.
" one embodiment ", " another embodiment ", " embodiment ", " preferred implementation spoken of in the present specificationExample " etc., referring to combining specific features, structure or the feature of embodiment description includes describing extremely in the application generalityIn few one embodiment.It is not centainly to refer to the same embodiment that statement of the same race, which occur, in multiple places in the description.Into oneFor step, when describing a specific features, structure or feature in conjunction with any embodiment, what is advocated is to combine other implementationsExample realizes that this feature, structure or feature are also fallen within the scope of the present invention.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood thatThose skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations will fall in this ShenIt please be within disclosed scope and spirit.More specifically, disclose in the application, drawings and claims in the range of, canWith the building block and/or a variety of variations and modifications of layout progress to theme combination layout.In addition to building block and/or layoutOutside the modification and improvement of progress, to those skilled in the art, other purposes also be will be apparent.