CN100570958C - Overlap earthing, complementary shielding difference pair electric coupler - Google Patents

Abstract

Suitable for high-speed transmission overlaps the ground, shielded electrical connector complementary differential pair of contacts, comprising a plug connector, the plug connector having a base, a ground shield plate contacts and differential pair. Wherein the base has a mating guide grooves, and the array defining sheet and the position of the ground shield contacts differential pair; each differential contact pairs for certain array row and column spacing; error of each ground shield plate through a combination of positive and negative overlap and arrangement complementary to the shield layer and the like. This complementary method so that shielding the differential between the respective pair of mutually isolated, thereby isolating a plurality of differential pairs of non-congruent cross section, to control the impedance of each differential pair and crosstalk is reduced between its purposes. Such non-congruent cross-section between the differential pair arrangement, the arrangement symmetrical about the center point of the bottom surface of the base, easy to use and easy to extend.

Description

Overlapping grounded shield complementary differential pair electrical connector

First, the technical field:

The present invention relates to electronic communications interconnection system, and an electrical connection between the printed circuit board between the printed board and connected to the wire, and particularly to a complementary electrical connector ground shield overlaps the differential pair contacts.

Second, the technical background

In the electronic interconnection system, with the increase of the field of electronics and communications equipment and system operating frequency, the requirements for the connector are also increasing, from the initial to achieve only a simple electrical communication, now required to meet Gbps level data transmission high-speed interconnect requirement rate has gone through several generations of development and renewal. This level can satisfy Gbps

New high-speed transmission connector data transfer rate to be solved, such as impedance, shielding, crosstalk, reflections and other signal integrity and delay issues.

Japan 1974 Fujitsu submitted Laid-Open 49-6543 describes metal shield problem, it is the early use of metal shielding technology.

U.S. Patent No. 46324761986 public last year discussed in the design is applied on the metal shield problem of signal contacts in the connector, discloses a connector, wherein the contact line between the signal using a metal mask.

Fi US Patent No. 49750841990 discloses public last year in a connector structure, the connectors are inserted into the signal integrity ground shield plate method between adjacent columns of signal contacts to improve the connector.

U.S. Patent Nos. 5,066,236 and No. 5,496,183, respectively, in 1991 and published in 1996 and discusses the impedance matching on the control signal applied to the contacts of the connector.

A connector structure disclosed in U.S. Patent No. 6,231,391 in. The connector includes a base, a plurality of signal pins, each signal pin of a continuous strip and a plurality of ground pins, wherein a continuous strip having a plurality of shield blades, a plurality of shield blades formed in a shape of right angle section, isolated thus with a corresponding ground shield for each signal pin.

Similar to those of the above-mentioned connector, such as Patent Document 4,632,476, 4,975,084, 5,066,236, 5,496,183 and 6,231,391, the presence of defects and deficiencies in the transmission rate, the shielding effect is achieved or engineering costs, it is difficult to satisfy the high speed, high density and low cost higher level of demand.

Another - aspect, the package size of the connector which often defines a particular application. While Tyco Electronics produced HS3, Z-DOK other connectors exhibit high signal characteristic, the transmission rates of up to 6.2 Gbps or even more than 10Gbps, but because of the size of the package is not compatible, they may not be suitable for the Compact PCI Specifications of interconnected computer systems.

- selectable electrical connector plug has been disclosed in Chinese Patent 1643742A (Application No. 03807091.X), the electrical connector using the same array of L-shaped shield, isolating individual differential pair to form a plurality differential cross section congruent array. However, since there is no symmetry in the same direction on the L-shaped shield structure in the array, the connector has a certain amount of inconvenience in the operation of the specific application; the same large number of grounding shielding sheet, low assembling efficiency.

In summary, the problem is how to provide a differential signal interconnect needs to meet a small package size, more economical, at the same time having a high signal quality and the operating characteristics of the electrical connector to facilitate the user's solution.

III. SUMMARY OF THE INVENTION

Object of the present invention, there is provided suitable for high-speed signal transmission and a controlled impedance of each differential pair, between which reduce crosstalk, which overlaps the ground to ensure high quality signal performance characteristics, shielded electrical connector complementary differential pair contacts it includes a plug connector, the connector having a base plate and ground shield contacts differential. Wherein the base has a pair of mating guide grooves, defining the ground and the shield plate and connected to the differential

The position of the contact member of the array; each differential pair of contacts, for certain array row and column spacing; each ground shield plate through a combination of positive and negative, and split overlapping complementary manner like shield. This complementary method of shielding, such that each of the differential line, isolation between columns, a plurality of non-congruent to isolate the differential cross section of this non-congruent alignment between the differential cross section, which are arranged on the base seat bottom

The center point of symmetry, ease of use and easy to extend.

Preclude the use of the beneficial effects of the present technology is required to meet the differential signal interconnection small package size, high quality signal, which reduces crosstalk between, in order to ensure high quality signal performance characteristics. IV BRIEF DESCRIPTION

1 is a grounded overlapping invention, the complementary differential contact shield configuration diagram of the overall assembly of the electrical connector of the plug connector.

Figure 1: the plug connector 10-, 11- insulation base, 12 ground shield plate,

13- differential contact pairs, 14 guide groove.

Figure 2 is grounded overlapping invention, the complementary differential shield the plug connector contacts of the electrical connector, the grounding shielding sheet structure.

In FIG. 2: 12- ground shield plate, a combination of positive and negative ground shield plate 15, 16 overlap the ground shield plate combination, the combination of 17- split ground shield plate.

Figure 3 of the present invention is grounded overlapping, complementary shield member configuration diagram of a differential pair of electrical contacts of the connector base.

Figure 3: 14- guide groove, the point of symmetry 20, the groove structure of ribs 21, 22 slot configuration, the side walls 23-, 24- bottom of the base 25, slots 27-, 26- contacts the positioning member apertures 18, 19 of each differential pair of mutually isolated sub-section.

Figure 4 is grounded overlapping invention, the complementary differential shield plate contacts the ground shield structure of the electrical connector of FIG.

Figure 4: Long Flap 28-, 29- short flanging, connected with 30-, 31- convex hull,

632- pits

V. DETAILED DESCRIPTION

A ground reference to the drawings of the present invention, overlapping, complementary to shield the differential contact pairs are electrically connected

Connector embodiment will be further described: the plug connector 10, which consists of an insulating base 11,

The ground shield plate 12 and a differential pair 13 composed of the contact member. Wherein the plurality of differential pairs of contacts 13 by a certain row and column spacing on the bottom surface 24 of the base array, a plurality of ground shield plate 12 by a certain combination, fixed on the bottom of the base .24 to isolate each differential contacting pieces of 13.

Wherein the differential pair of contacts 13, a combination of positive and negative ground shield plate 15 and ground shield 16 and the split-ply combination 17 is provided in the respective mounting position 10 on the plug connector.

The shielding sheet structure as illustrated in Figure 4, flange 28 which is provided with a plurality of long and short flange 29, the connecting band 30 and a projection 30 on the package in connection with the distribution of intersecting recesses 31 and 32. When the complementary shield 15 by a difference between a combination of spaced rows and columns of the positive and negative contacts 13; differential pairs of contacts to form a shield by overlapping between lines 16 17 in combination with a split-level. So that two overlapping reverse stagger shielding sheet size Dc, so that just a short hemming shielding sheet 29 to fill the other shielding plate is formed in a long flap 2, in connection with a left face mask blank where Dx, is formed complementary shield, ultimately isolated and shielded from the difference between the line and the contact line of the column to column. This arrangement is formed of a combination of a plurality of differential cross section congruent to form, in FIG. 3, 18 and 19, 20 are staggered and symmetric to the center point of the bottom surface of the base 24, as shown in Figure 3. Shielding sheet 12 connected to the belt 30 has a convex cross-profile package 31 and depressions 32, 17 when it is in combination with a split 16 exactly overlap with each other, from close contact with the positioning action, as illustrated in Figure 4. Ll base structure shown in Figure 3, comprises two side walls 23 and bottom surface 24. On the bottom surface 24 are distributed in accordance with the differential pairs of contacts 13 and aperture 26 combination shielding sheet 12 arranged, slots 25 and slots 27, in which the aperture 26 for receiving and positioning the differential contact pairs 13; 25 and slots

7 the slot 27 for positioning and fixing the shield plate 12. 23 on both side walls 21 are distributed between the ribs 14 and grooves 22 of the guide groove structure 22, and the guide groove 14 and the groove structure. Wherein the guide groove 14 is located in the bottom surface of the base 24 of the center point of symmetry 24.

Claims (4)

1, in an overlapping grounded shield complementary differential pairs of contacts of the electrical connector for high-speed transmission of electrical connector comprising a plug connector (10), the plug connector having a base (11), mounted on a plurality of ground shield plate (12) on the base and the differential pairs of contacts (13), wherein: ground shield plate (12) which has a plurality of long flap (28), the short flange (29), connected with ( 30), when the complementary shielded by a combination of positive and negative (15) spaced columns differential contact member (13) between the columns, to form the difference between lines by overlapping (16) and the split (17) in combination a contact member for shielding the two overlapping reverse stagger shielding sheet size, just so that the short flap (29) to fill a shield sheet forming the other long flap in a shielding sheet (28), the surface of the belt where the connection left shield blank, each ground shield plate (12) by a combination of positive and negative (15) overlap (16) and the split (17) arrangement for each differential pair of contacts (13) complementary to a shield ground shield plate (12) is arranged in such a way that the respective combination of the differential pair of contacts of (13) are formed individually screened to isolate a plurality of part-arithmetic Partial cross-section (18, 19), to achieve the purpose of controlling the impedance of each differential pair and between their mutual reducing crosstalk.

2, the ground according to claim 1, overlapping, complementary shielded electrical connector differential contact pair, wherein: a ground shield plate (12), the differential contact pairs (13) and a base (11) side walls aligned guide groove (14), in combination with a center point located in the bottom of the base (24) (20) symmetrical, easy to use and easy to extend.

3, overlapping the ground according to claim 1, shielded electrical connector complementary differential pairs of contacts, characterized in that: the structure of the ground shield plate (12) is provided with a connector (30) and a connecting band (30) on the crossing distributed convex hull (31) and the pit (32).

4, the ground according to claim 1, overlapping, complementary shielded electrical connector of the differential pairs of contacts, characterized in that the distribution (12) arranged according to a combination of differential pairs of contacts (13) on the bottom surface and the shield plate (24) the aperture (26), slots (25, 27 ') apertures (26) for receiving and locating differential contact member (13), slots (25, 27) for positioning and fixing the shield plate (12), the two distributed on the side wall (23) a guide groove (14) and groove structure (22), between the ribs and the guide grooves (14) and groove structure (22) (21).