TWI580122B - Electrical connector system - Google Patents

Description

Electrical connector system

This invention relates to an electrical connector system for interconnecting circuit boards or other substrates.

Electrical connector systems are typically used to connect a first substrate (e.g., a printed circuit board) and a second substrate (e.g., another printed circuit board) in a parallel or perpendicular relationship. As electronic components shrink in size and electronic components become more complex, it is often necessary to install more components in a smaller space on a circuit board or other substrate; therefore, it has become necessary to reduce the number of electrical terminals within the electrical connector system. This interval increases the number of electrical terminals enclosed within the systems. Accordingly, there is a need to develop an electrical connector system that can increase speed operation while increasing the number of electrical terminals enclosed within the electrical connector system.

According to the present invention, an electrical connector system includes a first central housing defining a plurality of first electrical contact passages on a first side of the first central housing and in the first central housing a plurality of second electrical contact channels on a second side. A first electrical contact array is substantially located within the plurality of first electrical contact channels on the first side of the first central housing. a second central housing defining a plurality of first electrical contact channels on a first side of the second central housing and a plurality of second electrical connections on a second side of the second central housing Point channel. A second array of electrical contacts is located substantially within the plurality of second electrical contact channels on the second side of the second central housing. The first and second central housings are adjacent one another in the electrical connector system such that the first electrical contact array is adjacent to the second electrical contact array to form a plurality of electrical contact differential pairs.

The present invention is related to a backplane connector system that is coupled to one or more substrates. The backplane connector systems are capable of operating at high speeds (e.g., up to about 25 Gbps) while also providing high pin densities in certain embodiments (e.g., up to about 50 pairs of electrical connectors per inch). In one embodiment, as shown in the first figure, the backplane connector system 102 is used to connect a first substrate 104 (eg, a printed circuit board) and a second substrate 106 (eg, another A printed circuit board). Embodiments of such disclosed connector systems include pairs of electrical devices that can be substantially in a three-dimensional manner between a backplane footprint, a backplane connector, and/or a daughtercard footprint. The connector (which is the differential pair of electrical connectors) is sealed into the internal ground shield structure. The internal ground structure and the dielectric filler surrounding the differential chambers surrounding the pair of electrical connectors themselves can avoid non-transverse, longitudinal periods during operation of the high speed backplane connector systems Useless propagation with higher order modes.

The second figure is a perspective view of an electrical connector system 202 for connecting a plurality of substrates. In one embodiment, the electrical connector system 202 has a fixed end 204 coupled to one of the first substrates and a mating end 206 coupled to the second substrate. The connection to the first substrate or the second substrate may be a direct connection or an interface connector. When joined to electrical connector system 202, the first and second substrates are arranged in a substantially perpendicular relationship. The electrical connector system 202 can include one or more wafer housings 208, one or more wafer assemblies 210, one or more ground shields 212, and one or more wire organizers 214. In addition, electrical connector system 202 includes one or more ground potential connection assemblies that provide a common ground potential between the plurality of wafer assemblies 210 and the substrate. For example, electrical connector system 202 includes one or more ground lugs that are coupled between sheet device 210 and the substrate at a fixed end 204 of electrical connector system 202, as in U.S. Patent Application Serial No. 12/641,904. Described.

The wafer housing 208 is used to position and position a plurality of sheet assemblies 210 adjacent one another in the electrical connector system 202. In one embodiment, the foil housing 208 engages the wafer assembly 210 at the mating end 206. One or more apertures 216 in the foil housing 208 are sized such that mating connectors extending from the foil assembly 210 can pass through the foil housing 208 such that the mating connectors are coupled to corresponding mating connectors associated with a substrate or Another matching device (such as the cap modules described in U.S. Patent Application Serial No. 12/474,568).

The ground shield 212 is coupled to the side of one or more of the sheet assemblies 210 or to the housing of one of the sheet assemblies 210. When the electrical connector system 202 is secured to the substrate, the ground shield 212 can include a substrate bonding component (eg, a grounding fixed pin) at the fixed end 204 of the electrical connector system 202 to engage the substrate.

The aligner 214 is shown as being located at the fixed end 204 of the electrical connector system 202. The aligner 214 includes a hole sized to pass a substrate bonding component (e.g., the electrical contact fixing pins) through the splicer 214 and to the substrate.

The third view is another view of electrical connector system 202 in which sheet housing 208 and splicer 214 have been removed to expose mating connector 302 and fixed connector 304 of sheet assembly 210. Each of the sheet assemblies 210 provides one or more arrays of electrical paths between the plurality of substrates. The electrical paths can be signal transmission paths, power transmission paths, or ground potential paths. One of the mating connectors 302 is located at one end of each electrical path of an array, and one of the fixed connectors 304 is located at the other end of each of the electrical paths of an array.

The mating connector 302 extends from the mating end 206 of the electrical connector system 202 for coupling to a first substrate or another matching device, such as a cap module. The mating connector 302 is a closed band, tri-beam, double beam, circular, male, maternal, amphoteric or another mating connector type. Similarly, the fixed connector 304 extends from the fixed end 204 of the electrical connector system 202 for coupling to a second substrate or another matching device. The fixed connector 304 can be an electrical contact pin that can be mounted in a corresponding hole or through hole of the substrate to create a connection with the substrate.

As shown in the third figure, electrical connector system 202 and sheet assembly 210 are formed from a number of different housing assemblies. For example, the electrical connector system includes one or more first end housings 306, one or more central housings 308, and one or more second end housings 310. The electrical connector system 202 shown in the third figure is formed by a first end housing 306, five center housings 308, and a second end housing 310. Different housing configurations may also be used in other implementations, including, for example, a plurality of first end housings 306, a plurality of second end housings 308, fewer central housings 308, and more Central housing 308 and the like. In the electrical connector system 202, the number and configuration of the housing components can be customized to meet the needs of the application.

The fourth diagram illustrates the first end housing 306, the central housing 308, and the second end housing 310 of the electrical connector system 202 in greater detail. In one embodiment, each of the housing assemblies includes a conductive surface defining a plurality of channels, the channels being sized to receive one or more electrical contact arrays. For example, the first end housing 306 can be included on a first side of the first end housing 306 rather than a plurality of channels 402 on the second side. Likewise, the second end housing 310 can include a plurality of channels 404 on one of the first sides of the second end housing 310, but not on the second side. Thus, end housings 306 and 310 can only accommodate an array of electrical contacts on one side. In another aspect, the central housing 308 can include a plurality of channels on each side of the central housing 308. For example, the central housing 308 can include a first plurality of channels 406 on a first side of the central housing 308 and a second plurality of channels 408 on a second side of the central housing 308. Thus, the central housing 308 can accommodate an array of electrical contacts on each side. The passage 406 on the first side of the central housing 308 is substantially similar to the passage 408 on the second side of the central housing 308.

The first end housing 306, the central housing 308, and/or the second end housing 310 are formed to have a conductive surface. For example, the housings are formed as a plated plastic grounded housing; in some embodiments, each of the housings comprises a plated plastic or die cast ground foil, such as nickel (Ni) Or zinc (Zn) die castings are coated with tin (Sn). In other embodiments, the housings comprise aluminum (Al) die castings, conductive polymers, metal injection molding, or any other type of metal.

The fifth figure depicts a first electrical contact array 502 (such as a first leadframe assembly) and a second electrical contact array 504 (such as a second leadframe assembly). Each of the electrical contact arrays 502 and 504 includes a plurality of electrical paths between the substrates; for example, the first contact array 502 includes a plurality of electrical paths 506, and the second contact array 504 includes a plurality of electrical Path 508. The electrical paths 506, 508 provide the signal transmission path, power transmission path or ground potential path of the sheet assembly 210 shown in the third figure. As shown in the fifth figure, a mating connector 302 is located at one end of each electrical contact of an array, and a fixed connector 304 is located at the other end of each electrical path of an array.

Electrical contact arrays 502, 504 are formed from a conductive material. In some implementations, the electrical contact arrays 502, 504 comprise phosphor bronze and nickel (Ni) coatings coated with gold (Au) or tin (Sn). In other implementations, the electrical contact arrays 502, 504 comprise any copper (Cu) alloy material. The plating layer may be any precious metal such as palladium (Pd) or an alloy such as palladium-nickel (Pd-Ni) or palladium (Pd) plated with gold (Au) in the contact region, and tin in the fixed region (Sn Or nickel (Ni), nickel (Ni) in the underlying plating or underlying plating. Each of the electrical contact arrays 502, 504 The figure is depicted in the fifth figure, which has a frame 510 that can be removed prior to operation.

The sixth figure depicts the electrical contact arrays 502, 504 after the overmolded insulating layer 602 (eg, overmolded plastic dielectric). In the sixth diagram, the array of electrical paths 506, 508 shown in FIG. 5 is at least partially surrounded by an overmolded insulating layer 602. The overmolded insulating layer 602 isolates the array of electrical paths 506, 508 from other conductive surfaces. The sixth diagram also depicts the electrical contact arrays 502, 504 after removal of the fabrication frame 510 shown in FIG.

The seventh diagram depicts a plurality of electrical contact arrays disposed in the channels of housing assemblies 306, 308, and 310. In the seventh diagram, the first electrical contact array 702 is substantially located in the channels on one of the first sides of the central housing 308; the third electrical contact array 704 is substantially located in the central housing 308. Within the channels on the second side. In one implementation, the first electrical contact array 702 is different from a portion of the differential pair array of the third electrical contact array 704. In this embodiment, the first electrical contact array 702 is paired with an electrical contact array 706 to form a first plurality of electrical contact differential pairs. Electrical contact array 706 is located substantially within the channels of first end housing 306, as shown in FIG. The third electrical contact array 704 is paired with a fifth electrical contact array 708 to form a second plurality of electrical contact differential pairs. The fifth electrical contact array 708 is substantially within the channels of the second end housing 310, as shown in the seventh diagram.

When the first electrical contact array 702 is substantially located in the plurality of channels on the first side of the central housing 308, the electrical contacts The array 706 is substantially located in the plurality of channels of the first end housing 306, and the first end housing 306 is coupled to the central housing 308, and the electrical contacts of the first electrical contact array 702 It is adjacent to an electrical contact of the electrical contact array 706. In some implementations, the first electrical contact array 702 and the electrical contact array 706 are located within the plurality of channels such that the distance between adjacent electrical contacts on the entire wafer assembly 210 is substantially equal. At the same time, the first electrical contact array 702 and the adjacent electrical contacts of the electrical contact array 706 form a continuous electrical contact pair. In some implementations, the electrical contacts are differential pairs of electrical contacts, for example, the electrical contact pairs can be used for differential signaling.

Similarly, when the third electrical contact array 704 is substantially within the plurality of channels on the second side of the central housing 308, the fifth electrical contact array 708 is substantially located in the second end housing In the plurality of channels of the 310, the second end housing 310 is coupled to the central housing 308, and the electrical contacts of the third electrical contact array 704 are substantially opposite to the fifth electrical contact array 708. An electrical contact is adjacent. In some implementations, the adjacent electrical contacts of the third and fifth electrical contact arrays 704, 708 form a continuous pair of electrical contacts, such as a differential signaling pair of electrical contacts.

In some implementations, for each electrical contact pair, the electrical contacts of the array of electrical contacts mirror the adjacent electrical contacts of another array of electrical contacts. Mirroring the electrical contacts to the electrical contacts provides manufacturing advantages as well as high-speed electrical performance in line alignment while still providing a unique structure in pairs of two rows.

The electrical contact channels in the housing assemblies 306, 308, and 310 Lining an insulating layer, such as overmolded plastic dielectric, such that when the electrical contact arrays 702, 704, 706, 708 are substantially in their respective channels, the insulating layer allows the electrical contacts to The conductive surfaces of the housing components 306, 308, 310 are electrically isolated. In other implementations, the insulating layer is applied directly to the electrical contact arrays 702, 704, 706, 708 to electrically isolate the conductive portions of the array from the electrically conductive surfaces of the electrical contact channels. After the electrical contact arrays 702, 704, 706, 708 have been located at the housing assemblies 306, 308, 310, the housings 306, 308, 310 are joined together to form a plurality of sheet assemblies 210 of the electrical connector system 202.

The electrical contact arrays 702, 704, 706, 708 each define a plurality of signal substrate bonding components (eg, fixed connectors 304) sized to extend through a fixed end of the housing and to connect to the plurality of substrates A signal through hole. Each of the arrays 702, 704, 706, 708 also defines a plurality of mating connectors 302 sized to extend through mating ends of the housings and to engage corresponding mating connectors or intermediate connectors of the substrate.

In some implementations, the central housing 308 includes a ground shield 710 that extends through or is embedded in a portion of the central housing 308. The ground shield 710 is secured to an outer surface of the central housing 308 or becomes an integral part of the central housing 308. The ground shield includes a plurality of ground tabs 712 sized to extend through the mating end of the central housing 308 and to block line-of-sight between the mating connectors 302 of the array of electrical contacts. . In some implementations, one of the ground-matching tabs 712 is above a pair of mating connectors and the other ground-matching tab 712 is below the pair of mating connectors. For example, the ground tabs 712 are spaced apart from one another such that a pair of mating connectors can fit into the space between adjacent mating tabs 712.

As shown in the eighth embodiment, some embodiments may also include a ground shield 802 coupled to one of the end housings. The eighth figure illustrates the ground shield 802 coupled to the end housing 310. The ground shield 802 is secured to the outer surface of the end housing 310 or becomes an integral part of the end housing 310. Similar to the ground shield 710 illustrated in FIG. 7 as being coupled to the central housing 308, the ground shield 802 includes a plurality of ground tabs 804 sized to extend through the mating end of the end housing 310. And the line of sight between the mating connectors 302 of the electrical contact array is blocked.

The seventh diagram depicts an embodiment having a central housing and two end housings that create two differential pair arrays (formed by four electrical contact arrays 702, 704, 706, 708) . Alternatively, multiple instances of the central housing 308 can be used to form an electrical connector having a larger number of arrays, thus creating a larger number of differential pair arrays. In this alternative embodiment, an array of electrical contacts is located substantially within the channels of the other two-sided central housing of the central housing 308. This additional array has half of the differential pair of one of the arrays 702, 704, 706, 708; for example, if the additional central housing is between the first end housing 306 and the central housing 308, then The array located in the additional central housing is paired with one of the arrays 702 or arrays 706, depending on which side of the additional central housing the additional array is located on. Likewise, if the additional central housing is between the second end housing 310 and the central housing 308, the array in the additional central housing is paired with one of the array 704 or array 708. The additional array is depending on which side of the additional central housing.

Some implementations include an example of a central housing 308 located on either side of the central housing 308. In an embodiment with three central housings 308 and two end housings 306, 310, eight electrical contact arrays can be accommodated to form four pairs of arrays. A first electrical contact array in the first end housing is paired with a second electrical contact array on the first side of the first central housing; a third electrical contact array on the second side is paired with a fourth electrical contact array on the first side of the second central housing; on the second side of the second central housing The fifth electrical contact array is paired with the sixth electrical contact array on the first side of the third central housing; and finally, the seventh electrical connection on the second side of the third central housing The array of dots is paired with an array of eighth electrical contacts in the second end housing. Other alternatives may include more central housings, such as the electrical connector system shown in Figure 3, which includes five central housings.

The ninth view is a perspective view of another electrical connector system 902 that can connect multiple substrates. In one embodiment, the electrical connector system 902 has a fixed end 904 coupled to a first substrate and a mating end 906 coupled to a second substrate. The connections to the first substrate or the second substrate may be direct or permeable to an interface connector. When joined to electrical connector system 902, the first and second substrates are arranged in a substantially perpendicular relationship.

Electrical connector system 902 includes one or more sheet housings 908, one or more sheet assemblies 910, one or more ground shields 912, and one or more liners 914. In addition, electrical connector system 902 includes one or more ground potential connection assemblies that provide a common ground potential between a plurality of wafer assemblies 910 and the substrate. For example, electrical connector system 902 includes one or more ground lugs that are coupled between sheet assembly 910 and the substrate at a fixed end 904 of electrical connector system 902, such as U.S. Patent Application Serial No. 12/641,904 Described in the article.

In one embodiment, the sheet housing 908, the ground shield 912, and the splicer 914 are substantially similar to the sheet housing 208, ground shield 212, and aligner 214 of the electrical connector system 202 described above. One difference between the electrical connector system 202 and the various components of the electrical connector system 902 is that the components of the electrical connector system 902 can have a different size or configuration than the electrical connector system 202. The size or configuration differences are used to accommodate such size and/or configuration differences between the sheet assembly 210 of the electrical connector system 202 and the sheet assembly 910 of the electrical connector system 902. For example, the sheet assembly 910 shown in the ninth figure can include a wider housing assembly sized to accommodate an additional array of electrical contacts.

The tenth view is a partially exploded view of electrical connector system 902 showing one of the sheet assemblies 910 detached from sheet housing 908. The electrical connector system 902 shown in the tenth diagram includes three wafer assemblies 910. In other embodiments, the electrical connector system 902 can include a different number of wafer assemblies 910. The number of sheet assemblies 910 in the electrical connector system 902 can be customized to meet the needs of the application. Each of the sheet assemblies 910 can include a housing assembly 1002, a plurality of electrical contact arrays (only the mating connectors 302 and the fixed connectors 304 of the electrical contact array are visible in the tenth figure), and one or more Ground shield 912.

The eleventh figure illustrates the housing assembly 1002 in more detail. In one embodiment, the shell assembly 1002 includes a conductive surface that defines a plurality of channels that are sized to receive one or more arrays of electrical contacts. The housing assembly 1002 includes a plurality of passages on each side of the housing assembly 1002. For example, the housing assembly 1002 includes a first plurality of channels 1102 on a first side of the housing assembly 1002 and a second plurality of channels 1104 on a second side of the housing assembly 1002. Thus, the housing assembly 1002 can house an array of electrical contacts on each side. The channel 1102 on the first side of the housing assembly 1002 is substantially similar to the channel 1104 on the second side of the housing assembly 1002. Housing assembly 1002 is formed from a similar material to housing assemblies 306, 308 and 310 described above.

A twelfth diagram depicts a plurality of electrical contact arrays 1202, 1204, 1206, 1208 disposed in channels 1102, 1104 of housing assembly 1002. Electrical contact arrays 1202, 1204, 1206, 1208 are identical or substantially similar to electrical contact arrays 702, 704, 706, 708 as described above in FIG. For example, each of the electrical contact arrays 1202, 1204, 1206, 1208 includes a plurality of electrical paths, may include an overmolded insulating layer, and may include substrate bonding components (eg, mating connectors 302 and fixed) Connector 304).

In the twelfth figure, the electrical contact array 1202 and the electrical contact array 1204 are substantially located in the channel 1102 on the first side of the housing assembly 1002, and the channel 1102 on the first side of the housing assembly 1002 The size can encompass a plurality of electrical contact arrays, such as both electrical contact array 1202 and electrical contact array 1204. Similarly, the electrical contact array 1206 and the electrical contact array 1208 are substantially located within the channel 1104 on the second side of the housing assembly 1002, and the size of the channel 1104 on the second side of the housing assembly 1002 is A plurality of electrical contact arrays are enclosed, such as both electrical contact array 1206 and electrical contact array 1208.

The electrical contact channels 1102 and 1104 in the housing assembly 1002 are lined with an insulating layer, such as a overmolded plastic dielectric, such that when the electrical contact arrays are substantially in their respective channels, the insulation The layers electrically isolate the electrical contacts of the array from the conductive surface of the housing assembly 1002. In other embodiments, the insulating layer is applied directly to the array of electrical contacts to electrically isolate the conductive portions of the array from the conductive surfaces of the electrical contact channels.

In one embodiment, the electrical contact array 1202 is paired with the electrical contact array 1204 to form a first plurality of electrical contact differential pairs. Electrical contact array 1206 is paired with electrical contact array 1208 to form a second plurality of electrical contact differential pairs.

When the electrical contact array 1202 and the electrical contact array 1204 are substantially located in the plurality of channels 1102 on the first side of the housing assembly 1002, the electrical contacts of the electrical contact array 1202 and the electrical contact array 1204 An electrical contact is adjacent. In some implementations, electrical contact arrays 1202 and 1204 are located within the plurality of channels such that the distance between adjacent electrical contacts is substantially equal between the entire sheet assemblies. At the same time, the adjacent electrical contacts of the electrical contact arrays 1202, 1204 form a continuous pair of electrical contacts. In some implementations, the electrical contacts are differential pairs of electrical contacts. For example, the pairs of electrical contacts can be used for differential signaling.

Similarly, when the electrical contact array 1206 and the electrical contact array 1208 are substantially located within the plurality of channels 1104 on the second side of the housing assembly 1002, the electrical contacts of the electrical contact array 1206 are electrically connected. An electrical contact of the dot array 1208 is adjacent. In some implementations, the adjacent electrical contacts of the electrical contact arrays 1206, 1208 form a continuous pair of electrical contacts, such as differential signaling pairs of electrical contacts.

A thirteenth diagram depicts a plurality of electrical contact arrays assembled into the channels in the housing assembly 1002. An insulating layer (e.g., the overmolded insulating layer) applied to one of the array of electrical contacts electrically isolates at least a portion of an array of electrical contacts from the array of adjacent electrical contacts. The thirteenth figure also illustrates the ground shield 912 and the ground shield 1302 coupled to the housing assembly 1002 on both sides of the housing assembly 1002. Alternatively, the ground shield is coupled to only one side of the housing assembly 1002. The ground shields 912 and 1302 can be secured to an outer surface of the housing 1002 or can be an integral part of the housing assembly 1002. In one embodiment, the ground shield 1302 includes a surface that separates the array of electrical contacts 1202, 1204 and an array of electrical contacts enclosed in an adjacent housing assembly. Similarly, ground shield 912 includes a surface that separates electrical contact arrays 1206, 1208 and an array of electrical contacts that are enclosed within a different adjacent housing assembly. Similar to the ground shield 710 coupled to the central housing 308, the ground shields 912 and 1302 of the thirteenth diagram may include a plurality of ground tabs 1304 that extend in size through the housing. The mating end of assembly 1002 also blocks the line of sight between each mating connector 302 of an array of electrical contacts.

102. . . Backplane connector system

104. . . First substrate

106. . . Second substrate

202. . . Electrical connector system

204. . . Fixed end

206. . . Matching end

208. . . Sheet shell

210. . . Sheet assembly

212. . . Ground shield

214. . . Wire conditioner

216. . . Hole

302. . . Matching connector

304. . . Fixed connector

306. . . First end housing

308. . . Central housing

310. . . Second end housing

402. . . aisle

404. . . aisle

406‧‧‧First electrical contact channel

408‧‧‧Second electrical contact channel

502‧‧‧First electrical contact array

504‧‧‧Second electrical contact array

506‧‧‧Electrical Path

508‧‧‧Electrical Path

510‧‧‧Manufacture of frames

602‧‧‧Overmolded insulation

702‧‧‧First electrical contact array

704‧‧‧ Third electrical contact array

706‧‧‧Electrical contact array

708‧‧‧ Fifth electrical contact array

710‧‧‧Ground shield

712‧‧‧ Grounding tabs

802‧‧‧ Grounding Shield

804‧‧‧ Grounding tabs

902‧‧‧Electrical connector system

904‧‧‧Fixed end

906‧‧‧Matching end

908‧‧‧Sheet shell

910‧‧‧Sheet assembly

912‧‧‧Ground shield

914‧‧‧ Threader

1002‧‧‧Shell assembly/housing

1102‧‧‧ channel

1104‧‧‧ channel

1202‧‧‧Electrical contact array

1204‧‧‧Electrical contact array

1206‧‧‧Electrical contact array

1208‧‧‧Electrical contact array

1302‧‧‧Ground shield

The first figure is a diagram of a backplane connector system connecting a first substrate to a second substrate.

The second figure is a perspective view of an electrical connector system including a plurality of wafer assemblies.

The third view is another view of the electrical connector system of the second figure.

The fourth figure depicts a central housing and two end housings of the electrical connector system of the second figure.

The fifth figure depicts the electrical contact array of the electrical connector system of the second figure.

Figure 6 is a diagram showing the overmolded electrical contact array of the electrical connector system of the second figure.

The seventh figure depicts an array of electrical contacts disposed in the channels in the housing assemblies of the fourth figure.

The eighth figure illustrates a ground shield coupled to one of the end housings of the fourth figure.

The ninth diagram is a perspective view of another electrical connector system including a plurality of wafer assemblies.

Figure 11 is a partially exploded view of the electrical connector system of the ninth diagram.

An eleventh drawing illustrates a housing assembly of the electrical connector system of the ninth embodiment.

Figure 12 illustrates an array of electrical contacts disposed in a channel in the housing assembly of Figure 11.

Figure 13 illustrates two ground shields coupled to the housing assembly of Figure 11.

202. . . Electrical connector system

204. . . Fixed end

206. . . Matching end

208. . . Sheet shell

210. . . Sheet assembly

212. . . Ground shield

214. . . Wire conditioner

216. . . Hole

Claims (4)

An electrical connector system characterized by: a first central housing defining a plurality of first electrical contact channels on a first side of the first central housing and in the first central housing a plurality of second electrical contact channels on a second side; a first electrical contact array substantially located in the plurality of first electrical contact channels on the first side of the first central housing And the first electrical contact array defines a plurality of mating connectors sized to extend through a matching end of the first central housing and to engage a corresponding mating connector of a substrate; a second central housing, a plurality of first electrical contact channels defined on a first side of the second central housing and a plurality of second electrical contact channels on a second side of the second central housing; An electrical contact array substantially in the plurality of second electrical contact channels on the second side of the second central housing; and a ground shield coupled to the first central housing Where the ground shield contains a plurality of grounding tabs sized to extend through the mating end of the first central housing and to block a line of sight between the mating connectors of the first array of electrical contacts; wherein the first and second The central housings are adjacent one another in the electrical connector system such that the first electrical contact array is adjacent to the second electrical contact array to form a plurality of electrical contact differential pairs. The electrical connector system of claim 1, further comprising: a third electrical contact array substantially located in the plurality of second electrical contact channels of the second side of the first central housing And a fourth electrical contact array substantially in the plurality of first electrical contact channels of the first side of the second central housing; wherein the third electrical contact array is coupled to a fifth The electrical contact arrays are paired to form a second plurality of electrical contact differential pairs, and wherein the fourth electrical contact array is paired with a sixth electrical contact array to form a third plurality of electrical contacts Differential pair. The electrical connector system of claim 2, further comprising a third central housing defining a plurality of first electrical contact passages on a first side of the third central housing and at the a plurality of second electrical contact channels on a second side of the third central housing, wherein the third central housing is disposed on the first plurality of first electrical contacts on the first side of the third central housing The fifth electrical contact array in the channel. The electrical connector system of claim 2, further comprising an end housing defining a plurality of electrical contact passages on one side of the end housing, wherein the end housing is disposed at the end The fifth electrical contact array of the plurality of electrical contact channels on the side of the housing.