CN105470675A - Electric connector - Google Patents
Electric connector Download PDFInfo
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- CN105470675A CN105470675A CN201410445780.0A CN201410445780A CN105470675A CN 105470675 A CN105470675 A CN 105470675A CN 201410445780 A CN201410445780 A CN 201410445780A CN 105470675 A CN105470675 A CN 105470675A
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Abstract
The invention discloses an electric connector comprising an insulation body and a plurality of groups of pins, which are arranged in the insulation body, wherein each pin comprises a first end portion electrically connected to external equipment and a second end portion welded with a main board, and the distance between the first end portions of at least one pair of adjacent pins is different from that between the second end portions.
Description
Technical field
The present invention relates to electric connector, more particularly, relate to the electric connector that can realize device miniaturization while avoiding electric leakage to occur.
Background technology
High-speed digital electrical equipment (as particular communication devices and computer server) needs Signal transmissions fast and accurately.These equipment have the circuit unit comprising electric connector, electric wire, circuit board and integrated circuit package.In low-speed applications, these assemblies can the normal operation in coordination with one another ground.But in high speed applications, when guaranteeing that the electric property of Whole Equipment is satisfactory, the conductivity of these assemblies and other electrical characteristics become crucial.
Because electronic product is just towards more frivolous, more miniaturized future development, thus make distance between centers of tracks fine and closely wovenization of printed circuit board (PCB) (PrintedCircuitBoard, PCB), interlayer slimming, pitch-row then reduces further, makes insulation property become reliability issues that need special attention.For existing electric connector, when mainboard welds, if use via hole welding, when spacing is less than certain threshold value (e.g., 0.45mm) between signal pins, impedance can be caused too small, have electric leakage that (conductive anodic filament) occurs.
Specifically, conductive anodic filament (CAF:ConductiveAnodicFilament) is the accessory substance of the electrochemical corrosion course that can cause electric short circuit or open circuit.Be usually expressed as and disperse out from the anode circuit, move towards cathode direction along the interface surface between glass and epoxy, form conductivity filament thing, thus cause insulation resistance between conductor that the unexpected decline being difficult to expect occurs.
First the formation of conductive anodic filament be the physical damage of glass/epoxy, then the moisture absorption result in glass/epoxy separating interface and occurs aqueous medium, provide electrochemical passageways, facilitate the transport of corrosion product, corrosion product from anode to negative electrode displacement, finally forms the conductive filament from anode to negative electrode under electric field action.The formation of anode conducting silk is relevant with factors such as base material, conductor structure, scaling powder and electric field strength.
Anode conducting silk usually occurs between via hole and via hole, between via hole and ectonexine wire, outer or between outer layer conductor and wire, thus cause decreasing insulating between two adjacent conductors even to cause short circuit.
Summary of the invention
In view of above situation, expect to be provided in the electric connector realizing device miniaturization while avoiding electric leakage to occur.
According to an aspect of the present invention, provide a kind of electric connector, comprising: insulating body; And organize pin more, be placed in described insulating body, wherein each pin the second end of comprising the first end for being electrically connected to external equipment and welding with mainboard, and distance between the first end of wherein at least one pair of adjacent leads is different from the distance between the second end.
Preferably, according in the electric connector of the embodiment of the present invention, the distance between the second end of adjacent two pins is greater than first threshold and is less than Second Threshold.
Preferably, according in the electric connector of the embodiment of the present invention, the distance between the second end of adjacent two pins is the arbitrary value in 0.47mm ~ 0.6mm scope.
Preferably, according in the electric connector of the embodiment of the present invention, the distance between the second end of described adjacent two pins is 0.5mm.
Preferably, according in the electric connector of the embodiment of the present invention, in each group pin, distance between the first end of adjacent two pins is the first distance, between the pin of two adjacent sets, the distance between the first end of adjacent two pins is second distance, and
Wherein said first distance is different from described second distance.
Preferably, according in the electric connector of the embodiment of the present invention, described first distance is less than described second distance.
Preferably, according in the electric connector of the embodiment of the present invention, often organize pin and comprise three adjacent pins.
Preferably, according in the electric connector of the embodiment of the present invention, described first distance is the arbitrary value in 0.4mm ~ 0.5mm scope, and described second distance is the arbitrary value in 0.5mm ~ 0.6mm scope.
Preferably, according in the electric connector of the embodiment of the present invention, described first distance is 0.4mm, and described second distance is 0.5mm.
According to a further aspect in the invention, provide a kind of docking station, comprising: one or more electric connector; Mainboard, each in wherein said one or more electric connector includes: insulating body; And organize pin more, be placed in described insulating body, wherein each pin the second end of comprising the first end for being electrically connected to external equipment and welding with mainboard, and distance between the first end of wherein at least one pair of adjacent leads is different from the distance between the second end.
In accordance with a further aspect of the present invention, provide a kind of electronic equipment, comprising: one or more electric connector; And mainboard, each in wherein said one or more electric connector includes: insulating body; And organize pin more, be placed in described insulating body, wherein each pin the second end of comprising the first end for being electrically connected to external equipment and welding with mainboard, and distance between the first end of wherein at least one pair of adjacent leads is different from the distance between the second end.
According in the electric connector of the embodiment of the present invention, by the distance between at least one pair of adjacent leads at first end place and the second end place is set to difference, can avoid between CAF and device miniaturization, carrying out compromise process neatly, thus while guaranteeing to avoid the CAF between pin to occur, the miniaturization (especially the non-solder end (port of export) of electric connector) of equipment can realized as much as possible.Further, by increasing grounding pin between every two pins in electrical connectors, the crosstalk introduced between pin can effectively be reduced.More preferably, by arranging different from the group inner distance of pin by the group distance of pin, generally making the group distance of pin be less than the group inner distance of pin, product can be made miniaturized, and effectively reduce the interference between different differential pair simultaneously.
Accompanying drawing explanation
Fig. 1 shows the schematic diagram of the inside pin of the electric connector according to the embodiment of the present invention;
Fig. 2 A-2C is the curve chart that the test data applying PCI-E interface of the present invention is shown;
Fig. 3 A-3D is the curve chart that the test data applying USB3.0 interface of the present invention is shown;
Fig. 4 A-4E is the curve chart that the test data applying DP1.2 interface of the present invention is shown;
Fig. 5 A-5E is the curve chart that the test data applying USB3.1 interface of the present invention is shown; And
Fig. 6 A-6B is the curve chart that the test data applying thunder and lightning of the present invention (thunderbolt) interface is shown.
Embodiment
Below with reference to accompanying drawings of the present invention each is preferred embodiment described.There is provided the description referring to accompanying drawing, to help the understanding to the example embodiment of the present invention limited by claim and equivalent thereof.It comprises the various details helping to understand, but they can only be counted as exemplary.Therefore, those skilled in the art will recognize that, can make various changes and modifications execution mode described herein, and do not depart from the scope of the present invention and spirit.And, in order to make specification clearly succinct, will the detailed description to well known function and structure be omitted.
First, with reference to Fig. 1, the concrete configuration according to the electric connector of the embodiment of the present invention is described.
According to the device that the electric coupler component of the embodiment of the present invention is for connecting two electronic devices (e.g., two printed circuit board (PCB)s), and transmission current or signal.Therefore, in fact, electric coupler component comprises and is arranged on the first electric connector on such as two printed circuit board (PCB)s and the second electric connector respectively.Pin in first electric connector and the pin in the second electric connector are fitted to each other to be electrically connected this two printed circuit board (PCB)s.Because the first electric connector and the second electric connector are structurally that class Sihe is corresponding, therefore in the following description, will only be described for the first electric connector (hereinafter will referred to as electric connector).
Fig. 1 shows the schematic diagram of the inside pin of the electric connector according to the embodiment of the present invention.As shown in Figure 1, described electric connector comprises: insulating body (not shown) and organize pin more.
Insulating body can comprise insulator and housing.
Insulator is also often called pedestal (base) or mounting panel (insert), and its effect makes pin by required position and spacing arrangement, and ensure the insulation property between pin and between pin and shell.Good insulation resistance, withstand voltage properties and workability are the basic demands selecting insulating material to be processed into insulator.
Housing, also referred to as shell, is the outer cover of electric connector, and it provides mechanical protection for in-built insulated mounting plate and pin, and aligning when providing plug and socket to plug together, and then connector is fixed on equipment.
Many groups pin is placed in described insulating body.In FIG, schematically illustrate two groups of pins, wherein often group comprises three pins.Certainly, those skilled in the art will appreciate that in electric connector the pin that can comprise group number arbitrarily, and the quantity often organizing pin is also not limited in three.As shown in Figure 1, each pin comprises two ends, and wherein first end (MatingEnd) is for being electrically connected to external equipment (e.g., another connector), is generally movable plug pin & socket-type.The second end (TerminationEnd) welds with mainboard, is generally fixing.
Here, it is pointed out that according in the electric connector of the embodiment of the present invention, the distance between the first end of at least one pair of adjacent leads is different from the distance between the second end.
For convenience of description, be dx1 by the distance definition between the adjacent leads at first end place, and come further between different adjacent leads between distance to distinguish with such as d11, d21, d31.Similarly, be dx2 by the distance definition between the adjacent leads at first end place, and come further between different adjacent leads between distance to distinguish with such as d12, d22, d32.
Such as, d11 can be different from d12, and d21 can be different from d22, and d31 can be different from d32.Or d11 can be different from d12, d21 can be different from d22, and d31 can be identical with d32.That is, the distance between first end place and each adjacent leads of the second end place can be all different, or also can part identical and part is different, the distance in a word between first end place with at least one pair of adjacent leads of the second end place is different.
In addition, about the mode of the different distance between the distance between the first end realizing adjacent leads and the second end, can have multiple.Such as, the different distance of two ends can be realized by tilt pin, or also can be realized the different distance of two ends by bending pin.Certainly, the mode enumerated here is only example.The present invention is not limited to this.It will be appreciated by those skilled in the art that, any other possible mode also can be applied to the present invention and within the scope of the present invention similarly, as long as the distance between the first end that can realize adjacent leads and the different distance between the second end.Usually need to reduce pin-pitch as much as possible thus reduction equipment size in order to the requirement of the minimum spacing of avoiding CAF to occur in the second end for welding owing to existing, if therefore as in the state of the art, uniformly the distance between the adjacent leads at first end place and the second end place is set to the pin-pitch of equipment minimum dimension, so may there is CAF at the second end place, if and uniformly the distance between the adjacent leads at first end place and the second end place is set to the minimum spacing that can avoid occurring CAF, then may not realize required equipment minimum dimension.And according in the electric connector of the embodiment of the present invention, by the distance between at least one pair of adjacent leads at first end place and the second end place is set to difference, can avoid between CAF and device miniaturization, carrying out compromise process neatly, thus while guaranteeing to avoid the CAF between pin to occur, the miniaturization of equipment can realized as much as possible.In addition, as will be described below, the restriction of CAF critical value of distance between adjacent two pins in first end place owing to may occur when being subject to welding unlike the second end place, that is, the spacing minimum value of signal cross-talk is avoided to be generally less than the spacing minimum value avoiding CAF, therefore, distance between adjacent for first end place two pins can be arranged be less than distance between adjacent two pins in the second end place, so at least can reduce the size of electric connector at the non-solder end (that is, the port of export) of electric connector as far as possible.
Specifically, at the second end place, the distance between adjacent two pins is greater than first threshold and is less than Second Threshold.Here first threshold is the critical gap that electric leakage occurs.Generally, in practice, the empirical value of this critical gap is 0.45mm.Second Threshold is the critical distance guaranteeing product miniaturization, this threshold value along with the progress of technology will be more and more less because people always wish that equipment can be miniaturized as much as possible.That is, at the second end place, first the distance between adjacent two pins must be greater than the critical value that CAF occurs, the little miniaturization being beneficial to equipment as much as possible again simultaneously.As possible execution mode, the distance between the second end of adjacent two pins can be the arbitrary value in 0.47mm ~ 0.6mm scope.Such as, the distance between the second end of adjacent two pins can be chosen as 0.5mm.Certainly, above numerical value is only example, and it should be appreciated by those skilled in the art, select in above-mentioned number range or in the scope identical in fact with above-mentioned number range arbitrary numerical value as adjacent two pins the second end between distance.
Signal transmissions required by electronic equipment is faster, then be more difficult to set up for equipment the electric connector be applicable to.The essential electrical factor affecting the high speed performance of connector is the crosstalk introduced between two adjacent leads of connector.The intensity of crosstalk depends on the distance between two adjacent leads.
Nowadays, along with electronic product becomes more and more miniaturized, their assembly (e.g., connector) is also correspondingly more and more miniaturized.In addition, due to the demand for more multi signal transmission path and faster transmission speed, in existing connector, the quantity of pin is also increasing gradually.Therefore, the distance between the adjacent leads of general connector inside becomes more and more less.The crosstalk introduced between pin increases significantly, and is badly in need of solving.
Therefore, as preferred way of example according to the present invention, the crosstalk introduced between pin can be reduced further.
A kind of mode in electrical connector interior process crosstalk can increase grounding pin (ground) between every two pins in electrical connectors.Such as, as noted before, each group pin can comprise three pins, is wherein a grounding pin between two pins.Such as, described three pins are respectively+,-, ground, using as a differential pair.Like this, compared with not increasing the situation of grounding pin, can by increasing the crosstalk that grounding pin reduces to introduce between pin effectively.
In addition, on this basis, can further the group distance of pin be arranged different from the group inner distance of pin.Specifically, assuming that in each group pin, the distance between the first end of adjacent two pins is the first distance, and between the pin of two adjacent sets, the distance between the first end of adjacent two pins is second distance.So, described first distance is different from described second distance.
More preferably, described first distance is less than described second distance.By doing like this, signal section adopts Small Distance that product can be made miniaturized, and adopts Large space to effectively reduce interference between different differential pair.
As possible execution mode, described first distance is the arbitrary value in 0.4mm ~ 0.5mm scope, and described second distance is the arbitrary value in 0.5mm ~ 0.6mm scope.
Be described for OneLink2.0 port.OneLink2.0 requires the spacing using 0.4mm in the design process.Due to so little pin-pitch can not be realized at PCB welding ends, therefore can only select to adopt such pin-pitch at the connector port of export.Such as, described first distance is 0.4mm, and described second distance is 0.5mm.Certainly, above numerical value is only example, and it should be appreciated by those skilled in the art, selects arbitrary numerical value as the first distance or second distance in above-mentioned number range or in the scope identical in fact with above-mentioned number range.
The foregoing describe according to the embodiment of the present invention, as the concrete configuration of the electric connector of minimum unit.Such electric connector can be applied to docking station (dockingstation).
Described docking station can comprise: one or more electric connector and mainboard.Such as, described docking station can comprise the electric connector of the number of different types such as USB connector, DVI connector.Further, described docking station can comprise the electric connector of multiple same type.
Each in described one or more electric connector all can have the configuration of the above described electric connector according to the embodiment of the present invention, namely comprises: insulating body; And organize pin more, be placed in described insulating body, wherein each pin the second end of comprising the first end for being electrically connected to external equipment and welding with mainboard, and distance between the first end of wherein at least one pair of adjacent leads is different from the distance between the second end.
Further, electronic equipment can also be applied to according to the electric connector of the embodiment of the present invention.Such as, electronic equipment can be notebook computer, panel computer etc.
Described electronic equipment can comprise: one or more electric connector; And mainboard.Such as, described docking station can comprise the electric connector of the number of different types such as USB connector, DVI connector.Further, described docking station can comprise the electric connector of multiple same type.
Each in wherein said one or more electric connector all can have the configuration of the above described electric connector according to the embodiment of the present invention, namely comprises: insulating body; And organize pin more, be placed in described insulating body, wherein each pin the second end of comprising the first end for being electrically connected to external equipment and welding with mainboard, and distance between the first end of wherein at least one pair of adjacent leads is different from the distance between the second end.
Next, the transmission performance applying various interface of the present invention is described with reference to Fig. 2 to Fig. 6.First, Fig. 2 A to Fig. 2 C shows the curve chart of the test data applying PCI-E interface of the present invention.Fig. 2 A shows the test data of insertion loss, and Fig. 2 B shows the test data of return loss, and Fig. 2 C shows the test data of near-end cross.As shown in FIG., the performance data applying PCI-E interface of the present invention is all within critical field, namely meets performance standard requirement.
Fig. 3 A to Fig. 3 D shows the curve chart of the test data applying USB3.0 interface of the present invention.Fig. 3 A shows the test data of impedance, and Fig. 3 B shows the test data of insertion loss, and Fig. 3 C shows the test data of near-end cross, and Fig. 3 D shows the test data of DC conversion.As shown in FIG., the performance data applying USB3.0 interface of the present invention is all within critical field, namely meets performance standard requirement.
Fig. 4 A to Fig. 4 E shows the curve chart of the test data applying DP1.2 interface of the present invention.Fig. 4 A shows the test data of impedance, and Fig. 4 B shows the test data of insertion loss, and Fig. 4 C shows the test data of return loss, and Fig. 4 D shows the test data of near-end noise, and Fig. 4 E shows the test data of far-end noise.As shown in FIG., the performance data applying DP1.2 interface of the present invention is all within critical field, namely meets performance standard requirement.
Fig. 5 A to Fig. 5 E shows the curve chart of the test data applying USB3.1 interface of the present invention.Fig. 5 A shows the test data of impedance, Fig. 5 B shows the test data of insertion loss, Fig. 5 C show SSGen2 between the test data of near-end cross, Fig. 5 D show SS and DD between the test data of near-end cross, and 5E show SS and DD between the test data of far-end cross talk.As shown in FIG., the performance data applying USB3.1 interface of the present invention is all within critical field, namely meets performance standard requirement.
Fig. 6 A to Fig. 6 B shows the curve chart of the test data applying thunder and lightning interface of the present invention.Fig. 6 A shows the test data of impedance, and Fig. 6 B shows the test data inserting coefficient.As shown in FIG., the performance data applying USB3.0 interface of the present invention is all within critical field, namely meets performance standard requirement.
Visible, although in electric connector of the present invention, the spacing between pin has been carried out shortening as much as possible, its performance parameter but without any deterioration.
Up to now, the electric connector according to the embodiment of the present invention is described in detail referring to figs. 1 through Fig. 6.According in the electric connector of the embodiment of the present invention, by the distance between at least one pair of adjacent leads at first end place and the second end place is set to difference, can avoid between CAF and device miniaturization, carrying out compromise process neatly, thus while guaranteeing to avoid the CAF between pin to occur, the miniaturization (especially the non-solder end (port of export) of electric connector) of equipment can realized as much as possible.Further, by increasing grounding pin between every two pins in electrical connectors, the crosstalk introduced between pin can effectively be reduced.More preferably, by arranging different from the group inner distance of pin by the group distance of pin, generally making the group distance of pin be less than the group inner distance of pin, product can be made miniaturized, and effectively reduce the interference between different differential pair simultaneously.
It should be noted that, in this manual, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Finally, also it should be noted that, above-mentioned a series of process not only comprises with the order described here temporally process that performs of sequence, and comprises process that is parallel or that perform respectively instead of in chronological order.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required hardware platform by software and realize, and can certainly all be implemented by software.Based on such understanding, what technical scheme of the present invention contributed to background technology can embody with the form of software product in whole or in part, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the present invention or embodiment.
Above to invention has been detailed introduction, applying specific case herein and setting forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (11)
1. an electric connector, comprising:
Insulating body; And
Organize pin more, be placed in described insulating body,
Wherein each pin the second end of comprising the first end for being electrically connected to external equipment and welding with mainboard, and
Distance between the first end of wherein at least one pair of adjacent leads is different from the distance between the second end.
2. electric connector according to claim 1, the distance between the second end of wherein adjacent two pins is greater than first threshold and is less than Second Threshold.
3. electric connector according to claim 1, the distance between the second end of wherein adjacent two pins is the arbitrary value in 0.47mm ~ 0.6mm scope.
4. electric connector according to claim 1, the distance between the second end of wherein said adjacent two pins is 0.5mm.
5. electric connector according to claim 1, wherein in each group pin, the distance between the first end of adjacent two pins is the first distance, between the pin of two adjacent sets, distance between the first end of adjacent two pins is second distance, and
Wherein said first distance is different from described second distance.
6. electric connector according to claim 5, wherein said first distance is less than described second distance.
7. electric connector according to claim 1, wherein often organizes pin and comprises three adjacent pins.
8. electric connector according to claim 5, wherein said first distance is the arbitrary value in 0.4mm ~ 0.5mm scope, and described second distance is the arbitrary value in 0.5mm ~ 0.6mm scope.
9. electric connector according to claim 5, wherein said first distance is 0.4mm, and described second distance is 0.5mm.
10. a docking station, comprising:
One or more electric connector;
Mainboard,
Each in wherein said one or more electric connector includes:
Insulating body; And
Organize pin more, be placed in described insulating body,
Wherein each pin the second end of comprising the first end for being electrically connected to external equipment and welding with mainboard, and
Distance between the first end of wherein at least one pair of adjacent leads is different from the distance between the second end.
11. 1 kinds of electronic equipments, comprising:
One or more electric connector; And
Mainboard,
Each in wherein said one or more electric connector includes:
Insulating body; And
Organize pin more, be placed in described insulating body,
Wherein each pin the second end of comprising the first end for being electrically connected to external equipment and welding with mainboard, and
Distance between the first end of wherein at least one pair of adjacent leads is different from the distance between the second end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410445780.0A CN105470675A (en) | 2014-09-03 | 2014-09-03 | Electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410445780.0A CN105470675A (en) | 2014-09-03 | 2014-09-03 | Electric connector |
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| CN105470675A true CN105470675A (en) | 2016-04-06 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410445780.0A Pending CN105470675A (en) | 2014-09-03 | 2014-09-03 | Electric connector |
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| WO2018176181A1 (en) * | 2017-03-30 | 2018-10-04 | 陈亮合 | Pin-rematched pci-e flexible riser card |
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| CN111769395A (en) * | 2020-07-24 | 2020-10-13 | 东莞立讯技术有限公司 | Terminal structure and electric connector |
| CN111769395B (en) * | 2020-07-24 | 2022-02-01 | 东莞立讯技术有限公司 | Terminal structure and electric connector |
| US11545788B2 (en) | 2020-07-24 | 2023-01-03 | Dongguan Luxshare Technologies Co., Ltd | Terminal assembly and electrical connector |
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