CN216488672U

CN216488672U - Electrical connector with improved contact arrangement

Info

Publication number: CN216488672U
Application number: CN202122536252.4U
Authority: CN
Inventors: 刘运祥; 廖雷; 易陆云
Original assignee: Amphenol Commercial Products Chengdu Co Ltd
Current assignee: Amphenol Commercial Products Chengdu Co Ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-05-10
Anticipated expiration: 2031-10-21

Abstract

Embodiments of the present disclosure provide an electrical connector. The electrical connector includes: an insulating housing having a mating face and a mounting face; a plurality of conductors disposed on the insulative housing, each of the plurality of conductors including a central portion disposed on the insulative housing, a mounting end portion extending from the central portion beyond the mounting face and a mating contact end portion extending from the central portion to the mating face, the mounting end portion configured to electrically connect with the printed circuit board when the electrical connector is attached to the printed circuit board, the plurality of conductors including a plurality of signal conductors and a plurality of ground conductors dispersed among the plurality of signal conductors; and a conductive shell that overlies at least a portion of the insulative housing and is electrically coupled to the plurality of ground conductors. Electrical connectors can reduce crosstalk between adjacent signal conductors or pairs of signal conductors by providing a conductive housing. Therefore, the condition that the signal transmission speed of the electric connector is influenced is relieved, and the signal transmission speed and the signal integrity are effectively improved.

Description

Electrical connector

Technical Field

The present disclosure relates to an electrical connector.

Background

Electrical connectors are used in many electronic systems. Manufacturing a system on several Printed Circuit Boards (PCBs) connected to each other by electrical connectors is generally easier and more cost effective than manufacturing a system as a single component. A conventional arrangement for interconnecting several PCBs is to have one PCB act as a backplane. Other PCBs, called daughter boards or daughter cards, are then connected by electrical connectors through the backplane.

Electronic systems have become smaller, faster and functionally more complex in general. These changes mean that the number of circuits in a given area of an electronic system, along with the frequency at which the circuits operate, has increased dramatically in recent years. Current systems transfer more data between printed circuit boards and require electrical connectors to be able to process more data at higher speeds than electrical connectors a few years ago.

One of the difficulties in making high density, high speed electrical connectors is that the conductors in the electrical connector may be so close that there is electrical interference between adjacent signal conductors. To reduce interference, and additionally to provide desired electrical properties, shield members are often placed between or around adjacent signal conductors. The shield prevents signals carried on one conductor from causing "crosstalk" on the other conductor. The shielding also affects the impedance of each conductor, which may further contribute to the desired electrical properties.

SUMMERY OF THE UTILITY MODEL

To at least partially solve the problems in the prior art, embodiments of the present disclosure provide an electrical connector. The electrical connector includes: an insulating housing having a mating face and a mounting face; a plurality of conductors disposed on the insulative housing, each of the plurality of conductors including a central portion, a mounting end portion extending from the central portion beyond the mounting face and a mating contact end portion extending from the central portion to the mating face, the mounting end portion configured to electrically connect with a printed circuit board when the electrical connector is attached to the printed circuit board, the plurality of conductors including a plurality of signal conductors and a plurality of ground conductors dispersed between the plurality of signal conductors; and a conductive shell that overlies at least a portion of the insulative housing and is electrically coupled to the plurality of ground conductors.

Illustratively, the insulative housing exposes the plurality of conductors, and the conductive shell covers the conductors, the conductive shell being electrically coupled to exposed portions of the plurality of ground conductors.

Illustratively, the conductive housing is in electrical contact with the plurality of ground conductors through a plurality of contact members, respectively.

Illustratively, the plurality of contact members extend from within the conductive housing toward the conductive housing, and each of the plurality of contact members is in electrical contact with a corresponding ground conductor.

Illustratively, each of the plurality of ground conductors has a protrusion disposed thereon that extends beyond the insulative housing and abuts the corresponding contact member.

Illustratively, each of the plurality of ground conductors has a projection disposed thereon, the projection extending beyond the insulative housing, the conductive shell is configured to be mounted to the insulative housing from above, and each of the plurality of contact members abuts a top surface of the projection on the corresponding ground conductor and a side surface of the corresponding ground conductor opposite the plurality of contact members.

Illustratively, each of the plurality of contact members includes a first inclined section extending obliquely from the conductive shell toward the corresponding ground conductor and a second inclined section extending obliquely from the first inclined section away from the corresponding ground conductor, the first inclined section and the second inclined section forming a hook at their connection, the hook being in electrical contact with the corresponding ground conductor.

Illustratively, each of the plurality of contact members and the corresponding ground conductor lie in a plane parallel to the plurality of signal conductors.

Illustratively, each of the plurality of contact members extends from a corresponding ground conductor toward and is in electrical contact with the conductive housing.

Illustratively, the conductive housing is provided with a plurality of through holes corresponding to the plurality of contact members, and each of the plurality of contact members is inserted into a corresponding through hole to be in electrical contact with the conductive housing.

Illustratively, the conductive shell is provided with a lug, and the conductive shell is fixed on the insulating shell through the lug.

Illustratively, the lugs are a plurality, one or more of the lugs being configured for soldering to a ground pad on the printed circuit board.

Illustratively, the conductive housing is provided with a connection portion for connecting to the printed circuit board such that the electrical connector is attached to the printed circuit board.

Illustratively, the connecting portion is a weld lug.

Illustratively, the solder lug is configured for soldering to a ground pad on the printed circuit board.

Illustratively, the electrical connector further includes a lossy material member disposed on the insulative housing and electrically coupled to the plurality of ground conductors.

Illustratively, the conductive shell and the lossy material member are electrically coupled to the plurality of ground conductors on either side of the plurality of conductors, respectively.

Illustratively, the lossy material member is disposed adjacent to the mounting surface.

Illustratively, the lossy material member has a plurality of first projections that are electrically coupled with the plurality of ground conductors, respectively.

Illustratively, each of the plurality of first projections has a slot disposed thereon, each of the plurality of ground conductors having an outwardly extending ground finger, the slot receiving the ground finger of a corresponding ground conductor.

Illustratively, the lossy material member further has a plurality of second projections corresponding to the plurality of signal conductors, the plurality of second projections having the same structure as the plurality of first projections, each of the plurality of signal conductors being spaced apart from a corresponding second projection.

Exemplarily, a grounding claw receiving groove adapted to the grounding claw is formed in the insulating housing, the grounding claw is inserted into the grounding claw receiving groove to hold the grounding conductor on the insulating housing, and an accommodating space is further formed in the insulating housing, in which the lossy material member is accommodated, and the accommodating space is communicated with the grounding claw receiving groove.

Each of the plurality of signal conductors has a signal claw extending outwards, the extending direction of the signal claw is consistent with the extending direction of the grounding claw, a signal claw receiving groove matched with the signal claw is further arranged on the insulating shell, the signal claw is inserted into the signal claw receiving groove to hold the signal conductor on the insulating shell, the distance from the grounding claw receiving groove to the mounting surface is smaller than the distance from the signal claw receiving groove to the mounting surface, and the receiving space is located between the mounting surface and the signal claw receiving groove.

Illustratively, each of the plurality of ground conductors further has a protrusion protruding in a direction opposite to a protruding direction of the ground claw, the protrusion being in electrical contact with the conductive housing.

Illustratively, the lossy material member does not overlap the broadsides of the plurality of signal conductors as viewed along the direction of alignment of the plurality of conductors.

Illustratively, the conductive shell has a minimum distance to the plurality of signal conductors in the range of 0.2mm-0.5 mm.

Illustratively, the electrical connector includes one or more of a right angle connector, a vertical mount connector, and a straddle mount connector.

Embodiments of the present disclosure provide electrical connectors that can reduce crosstalk between adjacent signal conductors or pairs of signal conductors by providing a grounded housing that is electrically connected to a ground conductor. Therefore, the condition that the signal transmission speed of the electric connector is influenced is relieved, and the signal transmission speed and the signal integrity are effectively improved.

A series of concepts in a simplified form are introduced in the disclosure, which will be described in further detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

Advantages and features of the present disclosure are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the present disclosure are included to provide an understanding of the present disclosure. The drawings illustrate embodiments of the disclosure and, together with the description, serve to explain the principles of the disclosure. In the drawings, there is shown in the drawings,

fig. 1 is a perspective view of one angle of a right angle connector according to an exemplary embodiment of the present disclosure;

FIG. 2 is a perspective view of another angle of the right angle connector shown in FIG. 1;

FIG. 3 is a perspective view of yet another angle of the right angle connector shown in FIG. 1;

FIG. 4 is a front view of the right angle connector shown in FIG. 1;

FIG. 5 is a cross-sectional view A-A of the right angle connector shown in FIG. 4;

FIG. 6 is a cross-sectional view B-B of the right angle connector shown in FIG. 4;

FIG. 7 is a perspective view of the right angle connector shown in FIG. 1 with the conductive housing removed;

FIG. 8 is a perspective view of a plurality of conductors and lossy material members according to an exemplary embodiment of the present disclosure;

fig. 9A is a front view of the ground conductor shown in fig. 7;

FIG. 9B is a front view of the signal conductor shown in FIG. 7;

FIG. 9C is a perspective view of the lossy material member shown in FIG. 7;

FIG. 10 is a schematic illustration of the effect of a conductive housing according to an exemplary embodiment of the present disclosure;

FIG. 11 is a perspective view of a straddle mount connector according to an exemplary embodiment of the present disclosure;

FIG. 12 is a perspective view of the straddle mount connector shown in FIG. 11 with the insulative housing removed;

FIG. 13 is a perspective view of a vertical mount connector according to an exemplary embodiment of the present disclosure;

fig. 14 is a perspective view of the vertically mounted connector shown in fig. 13 with the insulative housing removed;

fig. 15 is a cross-sectional view of a right angle connector according to another exemplary embodiment of the present disclosure;

fig. 16 is a perspective view of a right angle connector according to yet another exemplary embodiment of the present disclosure; and

fig. 17 is a sectional view of the right angle connector shown in fig. 16.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present disclosure. One skilled in the art, however, will understand that the following description merely illustrates preferred embodiments of the disclosure and that the disclosure may be practiced without one or more of these details. In addition, some features that are well known in the art have not been described in detail to avoid obscuring the present disclosure.

In one aspect, the inventors have recognized that the size of the electrical connector cannot be increased in order to achieve miniaturization of the electrical connector. Increasing the number of conductors in an electrical connector means that the pitch between the conductors becomes smaller and smaller. On the other hand, the inventors have recognized and appreciated that positioning the conductors within an electrical connector closer together to support miniaturized production is susceptible to signal crosstalk and affects signal transmission quality.

The inventors have recognized and appreciated that a design for a high density electrical connector that provides improved signal transmission quality and reduced crosstalk can be provided. In some embodiments, a high-density electrical connector may include a conductive housing that may be housed outside of a conventional electrical connector. In conventional electrical connectors, a portion of the conductor may be exposed at the rear of the insulative housing of the electrical connector, resulting in undesirable radiation. The conductive housing may be configured to not only prevent undesired radiation caused by exposed portions of the conductor, but also provide shielding along the length of the conductor. The conductive shell may have sides that substantially cover the rear face of the insulative housing. Moreover, these conductive enclosures may also provide good mechanical design and provide better electrical performance.

Other techniques may be used to control the performance of the electrical connector. Transmitting signals differentially may also reduce crosstalk. Differential signals are carried on a pair of conductors called a "differential pair". The voltage difference between the conductors represents the signal. Typically, differential pairs are designed to have preferential coupling between the conductors of the pair. For example, the two conductive paths of a differential pair may be arranged closer to each other than to adjacent signal conductors in the connector. No shielding is desired between pairs of conductive paths, but shielding may be used between differential pairs. Electrical connectors may be designed for differential signaling as well as single-ended signaling.

One or more techniques may be used to prevent undesirable crosstalk. Those techniques may include the use of a plurality of ground conductors that may be arranged in rows along the length of the slots of the mating interface and loaded into the insulative housing of the connector in any selected pattern. One such pattern requires two signal conductors to be positioned between two ground conductors for all or part of the electrical connector. The two signal conductors may be differential pairs. In some embodiments, the ground conductor may be connected to a conductive shell, the side of which may extend in the row direction and be electrically connected orthogonally to the portion of the ground conductor exposed by the insulative housing. One improvement of the present disclosure is to ground the conductive housing. In such a configuration, the signal conductors of the two ground conductors may be constrained by the ground structure on at least two sides, and in some embodiments on four sides, which reduces crosstalk.

Furthermore, when the conductive housing is grounded and is located a short distance, e.g., 0.3mm to 0.4mm, from the signal conductors, radiation between adjacent pairs of signal conductors may also be cut off, thereby significantly reducing crosstalk and improving signal integrity.

The conductive housing may be in electrical contact with the plurality of ground conductors via the plurality of contact members, respectively, thereby electrically coupling the conductive housing with the plurality of ground conductors. Alternatively or additionally, the conductive housing may have a solder tab configured to be soldered to a ground pad on the printed circuit board, thereby providing a conductive path through the conductive housing. This configuration makes it possible for the current to be transmitted in a direction as parallel as possible to the signal path, whereby the conductive housing can be made to perform a good shielding effect.

Alternatively or additionally, the electrical connector may further comprise a lossy material member. The ground conductor may be connected to a lossy material member, which may reduce interference, particularly with respect to high frequency performance. The lossy material members may be in the form of strips. It may be electrically coupled to the ground conductor at a location adjacent the mounting surface because the impedance discontinuity and crosstalk is more severe there. The lossy material members may be made of lossy material, which may absorb undesirable modes. The electrical connector has both a conductive housing and a lossy material member, making it possible for the signal conductors between two ground conductors to be bounded on more sides, e.g., four sides, by the ground structure, thus enabling signal integrity to be improved more significantly.

Differential electrical connectors are generally considered to be "edge-coupled" or "broadside-coupled". In both types of electrical connectors, the signal conductors carrying the signals are generally rectangular in cross-section. Two opposing sides of the rectangle are wider than the other sides, forming the broadsides of the signal conductors. An electrical connector is considered broadside-coupled when a pair of signal conductors is positioned closer to each other than the broadsides of the paired signal conductors to adjacent conductive members. Conversely, an electrical connector is considered edge-coupled if the pair of signal conductors are positioned such that the narrower edges of the joining broadsides are closer to each other than the adjacent conductive members. In embodiments employing broadside coupling, the lossy material member does not overlap the broadsides of the signal conductors, as viewed along the direction of alignment of the plurality of conductors, to avoid electrical coupling of the two.

To ensure that the lossy material member is not electrically coupled to the signal conductors, the signal conductors may have smaller signal fingers and the ground conductors have larger ground fingers that may contact projections on the lossy material member so that, when assembled, the signal conductors can be spaced apart from the lossy material member. Preferably, such a projection is provided at a position corresponding to each of the ground conductor and the signal conductor, so that if a customized conductor arrangement pattern is required, the same lossy material member can be used without preparing different lossy material members corresponding to different conductor arrangement patterns. Since the signal conductor does not come into contact with the lossy material member even if the ground conductor at the same position is replaced with a signal conductor.

Compared with the existing electrical connector, the electrical connector provided by the embodiment of the disclosure can effectively reduce crosstalk, thereby improving signal integrity. The electrical connector may support, for example

M.2 Gen 5(32Gb/s) (peripheral component interconnect Standard 5 th generation) requirements for high speed performance. Also, the electrical connector may have backward compatibility, for example, may support the requirements of Gen 3 and Gen 4 for high speed performance. The electrical connector of some embodiments is described in detail below with reference to specific embodiments.

As shown in fig. 1-6, the right angle connector 610 may include an insulative housing 100, a plurality of conductors 200, and a conductive shell 400.

The insulation housing 100 may have a mating face 110 and a mounting face 120. In a right-angle connector, the mating face 110 and the mounting face 120 are perpendicular to each other. In other types of electrical connectors, such as vertical connectors, the mating face 110 and the mounting face 120 are opposite each other. The mating face 110 and the mounting face 120 function in a variety of electrical connectors generally the same regardless of the type of electrical connector. Thus, the principles of the right angle connector 610 are described herein by way of example. Illustratively, the mating face 110 may form a mating interface of the right angle connector 610. The docking surface 110 may be provided with a slot. The socket may receive components such as electronic cards, plug electrical connectors, and the like. The slot is substantially in the shape of a long and narrow strip. The mounting surface 120 may face a printed circuit board or the like. Specifically, an electronic card may be inserted into a slot of the mating face 110, and the mounting face 120 may be connected to a printed circuit board, thereby electrically connecting the electronic card and the printed circuit board through the right-angle connector 610.

A plurality of conductors 200 may be disposed on the insulating housing 100. A plurality of conductors 200 are disposed in spaced relation to one another to ensure electrical isolation of conductors 200 from one another. Each of the plurality of conductors 200 may include a central portion 201, a mounting end portion 202, and a mating contact end portion 203, as shown in fig. 8. The middle portion 201 may hold the plurality of conductors 200 on the insulating housing 100. The mounting end 202 may extend from the central portion 201 beyond the mounting surface 120, as shown in fig. 3. The mounting end 202 may be configured to electrically connect with a printed circuit board when the right angle connector 610 is connected to the printed circuit board. Illustratively, the mounting end 202 may be electrically connected to the printed circuit board by any suitable means, such as soldering. The mating contact end 203 may extend from the middle portion 201 to the mating face 110, as shown in fig. 1. The mating contact ends 203 may be used to make electrical contact with gold fingers on an electronic card or the like to electrically connect the right angle connector 610 with the electronic card or the like.

The plurality of conductors 200 may include a plurality of signal conductors 210 and a plurality of ground conductors 220. A plurality of ground conductors 220 may be dispersed among the plurality of signal conductors 210. The plurality of signal conductors 210 and the plurality of ground conductors 220 may be arranged in various desired patterns. In the embodiment shown in the figures, the signal conductors 210 are present in pairs to form differential signal conductor pairs for transmitting differential signals. The ground conductors 220 may be located between any adjacent two pairs of signal conductors 210. Differential signal conductor pairs may be used to transmit high speed signals to reduce crosstalk. Alternatively, the signal conductor 210 may also be used to transmit single-ended signals.

The conductive housing 400 may be made of a metal material. Further, the conductive housing 400 may be formed by sheet metal stamping, welding, or any other suitable means. The conductive shell 400 may cover at least a portion of the insulating housing 100. The conductive shell 400 may be electrically coupled to the plurality of ground conductors 220, such as to the central portions 201 of the plurality of ground conductors 220. In this way, shielding is formed between adjacent signal conductors or pairs of signal conductors. Signals carried on one signal conductor 210 may be prevented from causing crosstalk on another signal conductor 210. Shielding may also affect the impedance of each conductor 200, which may further contribute to obtaining desired electrical properties.

The insulating housing 100 generally exposes a plurality of conductors 200. As shown in fig. 7, the insulating housing 100 exposes a middle portion 201 of the conductor 200 at a rear face opposite to a front face where the mating face 110 is located. The insulating housing 100 may be molded from an insulating material such as plastic. The insulating housing 100 is typically a unitary piece. The rear surface of the insulating housing 100 is provided with mounting openings 101 corresponding one-to-one to the plurality of conductors 200. Each conductor 200 can be inserted into a corresponding conductor mounting slot (not labeled) in the insulation housing 100 from a corresponding mounting opening 101, which is why the insulation housing 100 generally exposes the middle portion 201 of the conductor 200. Furthermore, the mating face 110 is typically for receiving a slot or card, and thus the mounting opening 101 is typically disposed on the rear, or side, or mounting face 120 of the insulated housing 100. The specific location of the mounting opening 101 is generally related to the type of electrical connector. By appropriately configuring the shape and structure of the conductor installation grooves in the insulation case 100, the conductors 200 can be held in the corresponding conductor installation grooves. The conductor mounting slots communicate with the mounting opening 101 and extend to the mating face 110 and the mounting face 120. In the illustrated embodiment, the mounting opening 101 extends to the mounting surface 120. The conductors 200 can be mounted in place in the conductor mounting slots by insertion through the corresponding mounting openings 101, and the mounting ends 202 for electrical connection to the printed circuit board can extend from the mounting face 120. The mating contact end 203 extends forward until it reaches the mating face 110.

Conductive shell 400 may cover a plurality of conductors 200. The conductive shell 400 may be electrically coupled with exposed portions of the plurality of ground conductors 220. In this way, conductive shell 400 not only prevents unwanted radiation caused by exposed portions of conductor 200, but also provides shielding along the length of conductor 200. This configuration can transmit a ground current in a direction as parallel as possible to the signal path, thereby making it possible to make the conductive housing 400 have a good shielding effect.

Due to the structural characteristics of the right angle connector 610, it is difficult for the conductive housing 400 to entirely cover the insulating housing 100. Illustratively, in the right-angle connector 610 as shown, the mating face 110 of the insulative housing 100 is considered as the front face, and the mounting face 120 is considered as the bottom face. The conductive housing 400 may cover at least the rear face of the insulating housing 100, and the front and bottom faces are not covered by the conductive housing 400 for the purpose of electrical connection with other components. In order to enable the conductive housing 400 to be fixed to the insulating housing 100, the conductive housing 400 may also cover a top surface of the insulating housing 100, and optionally, may also cover two opposite side surfaces of the insulating housing 100.

The conductive housing 400 may prevent radiation from entering or exiting the right angle connector 610. Referring specifically to fig. 10, radiation is generated between two adjacent pairs of

signal conductors

210A and 210B due to coupling. This radiation is schematically illustrated by means of arcs in the figure. This coupling is undesirable because it can lead to cross-talk. By providing a conductive housing 400, more than about half of the radiation (as shown by the dashed lines) between one pair of signal conductors 210A and another adjacent pair of signal conductors 210B can be cut off. Accordingly, the conductive housing 400 may reduce crosstalk, thereby effectively increasing signal transmission speed and signal integrity.

Accordingly, embodiments of the present disclosure provide a right angle connector 610 that may reduce crosstalk between adjacent signal conductors or pairs of signal conductors by providing a conductive shell 400 and electrically coupling the conductive shell 400 to the ground conductors 220. In this way, the influence on the signal transmission speed of the right-angle connector 610 is alleviated, so that the signal transmission speed and the signal integrity are effectively improved.

Preferably, the conductive housing 400 may be electrically contacted with the plurality of ground conductors 220 through a plurality of contact members, respectively. Each ground conductor 220 is in electrical contact with the conductive housing 400 through a corresponding contact member. Of course, the conductive housing 400 may be in direct electrical contact with the plurality of ground conductors 220 without providing such an intermediate contact member. But the direct contact may require high machining accuracy. The structure of the plurality of contact members may be arbitrary. Illustratively, a plurality of contact members may be disposed between the conductive shell 400 and the plurality of ground conductors 220, or a plurality of contact members may be disposed on the conductive shell 400, or a plurality of contact members may be disposed on the plurality of ground conductors 220. Preferably, a plurality of contact members may be provided integrally with the conductive housing 400, or each ground member may be provided integrally with the corresponding ground conductor 220, which may reduce the difficulty. Also, the contact member may be made to have a certain elasticity so as to form a reliable electrical contact between the conductive housing 400 and the plurality of ground conductors 220.

In a preferred embodiment, a plurality of contact members may extend from within the conductive housing 400 towards the interior of the conductive housing 400. Each contact member may be in electrical contact with a corresponding ground conductor 220. In the embodiment shown in fig. 1-6, the contact member may be configured as a resilient sheet 420. The conductive shell 400 may cover the rear face of the exposed conductor 200 of the insulating housing 100, primarily for covering the mounting opening 101 of fig. 7. The conductive housing 400 may include a side 411 that substantially covers the rear of the insulative housing 100. A plurality of elastic pieces 420 may be provided on the side 411. Thus, the side 411 not only covers the exposed portion of the signal conductor 210 for shielding effect, but also supports the elastic piece 420. The plurality of elastic pieces 420 may be elastically tightly attached to the plurality of ground conductors 220 to form a reliable electrical contact. The provision of the resilient tab 420 on the side 411 also facilitates electrical contact with the plurality of ground conductors 220.

A plurality of resilient tabs 420 may extend from the conductive housing 400 into the conductive housing 400. A plurality of elastic pieces 420 may be integrally manufactured with the conductive housing 400. Illustratively, the conductive housing 400 may be formed using a stamping process. At positions on the conductive shell 400 formed by punching corresponding to the plurality of ground conductors 220, a plurality of U-shaped cutouts may be cut out correspondingly, and then the portions inside the cutouts may be bent toward the inside of the conductive shell 400. Thus, each bent portion may form one elastic piece 420. The conductive housing 400 is simple to manufacture and easy to produce.

Each elastic piece 420 may include a first inclined section 421 and a second inclined section 422. The first inclined section 421 extends obliquely from the conductive shell 400 toward the corresponding ground conductor 220. The second inclined section 422 extends obliquely away from the corresponding ground conductor 220 from the first inclined section 421. The first and second

inclined sections

421 and 422 may be substantially V-shaped with the opening of the V facing the conductive shell 400. The first inclined section 421 and the second inclined section 422 form a hook 423 at their junction. The hook portions 423 are in electrical contact with the corresponding ground conductor 220. Thereby, each elastic piece 420 may be brought into surface contact with the corresponding ground conductor 220 to improve reliability of electrical contact.

By providing multiple contact members on the conductive housing 400, retrofitting existing ground conductors 220 structures, which may affect the electrical performance of the ground conductors 220, or excessive retrofitting, may be avoided. Moreover, providing a plurality of contact members on the conductive housing 400 also provides the possibility of reducing the difficulty of processing.

Optionally, a protrusion 224 may be provided on each of the plurality of ground conductors 220. The protrusion 224 may extend out of the insulating housing 100. As shown in fig. 5, each elastic piece 420 may face the corresponding protrusion 224. Each spring tab 420 may abut against a corresponding protrusion 224, thereby electrically coupling each spring tab 420 with a corresponding ground conductor 220.

Optionally, each spring tab 420 may also abut a corresponding ground conductor 220 above the protrusion 224. The conductive housing 400 may be mounted to the insulating case 100 from above the insulating case 100. As shown in fig. 15, in this case, each elastic piece 420 may abut against a top surface of the protrusion 224 on the corresponding ground conductor 220 and a side surface 225 of the ground conductor 220 opposite to the elastic piece 420. During installation, the resilient tab 420 comes closer to the protrusion 224 and eventually abuts against the protrusion 224. Thereby, the elastic piece 420 can be electrically contacted with the ground conductor 220 at two positions, thereby improving reliability of the electrical contact.

Additionally or alternatively, each contact member may extend from a corresponding ground conductor 220 toward the conductive housing 400. Each contact member may be in electrical contact with the conductive housing 400. Each contact member may be connected to the corresponding ground conductor 220 by welding, bonding, or the like, or may be integrally formed with the corresponding ground conductor 220, for example. As in the embodiment shown in fig. 16-17, each of the plurality of ground conductors 220 may be provided with an extension 225. Each extension 225 may form a contact member. The extension 225 may extend toward the conductive shell 400. Each extension 225 may be in electrical contact with the conductive shell 400.

Further, as shown in fig. 16 to 17, the conductive housing 400 may be provided with a plurality of through holes 450 corresponding to the plurality of contact members. Each of the plurality of contact members (e.g., extensions 225) may be inserted into a corresponding through-hole 450. As such, each of the plurality of contact members may be in electrical contact with the conductive housing 400. By providing the through-hole 450, each of the plurality of contact members can be more securely connected to the conductive housing 400, thereby making the stability of electrical contact higher.

Preferably, as shown in fig. 10, the distance L of the conductive shell 400 to the plurality of signal conductors 210 may be in the range of 0.2mm-0.5 mm. Further, the distance L may be in the range of 0.3mm to 0.4 mm. Too far a distance L may reduce the effect of reducing crosstalk. The smaller distance L may improve the effect of reducing crosstalk, but may increase the difficulty of production, thereby increasing the production cost. Therefore, the distance L is reasonable within this range.

Preferably, each contact member may lie in a plane parallel to the plurality of signal conductors 210 with the corresponding ground conductor 220. Preferably, each contact member may have substantially the same width as the corresponding ground conductor 220. In this way, current through the conductive housing 400 can flow in a direction as parallel as possible to the signal path. The conductive housing 400 has a better effect of reducing crosstalk.

Preferably, as shown in fig. 3, a lug 430 may be provided on the conductive housing 400. The conductive shell 400 may be fixed to the insulating case 100 by means of the lugs 430. Depending on the structure of the different lugs 430, the conductive shell 400 can be fixed to the insulating housing 100 by any suitable means such as clamping, plugging, etc. of the lugs 430. Illustratively, the lug 430 may be a snap. The lug 430 may be an integral part of the conductive shell 400. By providing the lug 430, the conductive shell 400 and the insulating housing 100 can be fixed relatively, thereby ensuring a stable positional relationship therebetween. The number of the lugs 430 may be plural to ensure the firmness of the connection between the two. In this case, one or more of the lugs 430 may be configured for soldering to a ground pad on the printed circuit board. In this way, the lug 430 may not only serve as a connection between the conductive shell 400 and the insulating housing 100, but also serve as a connection between the conductive shell 400 and the printed circuit board, and further may electrically connect the conductive shell 400 with a ground pad of the printed circuit board.

Of course, as shown in fig. 3, an additional connection portion 440 may be provided on the conductive housing 400. The connection portion 440 may be used for connection to a printed circuit board. In this way, the right angle connector 610 may be connected to a printed circuit board. Depending on the structure of the connection portion 440, the right-angle connector 610 may be connected to the printed circuit board by any suitable manner such as clamping, plugging, etc. of the connection portion 440. By providing the connection portion 440, the right-angle connector 610 and the printed circuit board can be fixed relatively, thereby ensuring a stable positional relationship therebetween.

In the related art in which the conductive housing 400 is not provided, a connection portion needs to be provided on the insulating case 100. On the one hand, the insulation case 100 is generally made of an insulation material such as plastic, which is inferior in mechanical strength to a metal material, and thus the mechanical connection strength between the insulation case 100 and the printed circuit board may not be sufficient. On the other hand, if it is necessary to ground the ground conductor 220 in the conductor 200, a grounding member needs to be additionally provided, instead of being directly grounded through the insulating housing 100. That is, in the present application, the conductive housing 400 may additionally compromise the function of mechanically fixing the electrical connector to the printed circuit board and the function of electrically connecting directly with the ground circuit of the printed circuit board through the conductive housing 400.

Further, as shown in fig. 3, the connection portion 440 may be a welding lug. The right angle connector 610 may be soldered to the printed circuit board by solder lugs. The current through the conductive housing 400 may flow to the printed circuit board through the solder bumps, thereby making the conductive housing 400 more effective in reducing crosstalk. Thus, it is possible to avoid providing a welding connection portion on the insulating housing 100. If the welding connection is provided on the insulating case 100, two materials are required to manufacture the insulating case 100. The conductive housing 400 is generally made of a metal material, and the soldering lugs provided thereon can still be integrally formed to manufacture the conductive housing 400 without significantly complicating the manufacturing process of the conductive housing 400, thereby reducing the manufacturing cost.

Still further, as shown in fig. 3, the solder bump may be configured for soldering to a ground pad on a printed circuit board. Therefore, the welding lug is simple in structure, the welding process difficulty is low, and the machining cost is reduced.

Preferably, as shown in fig. 3 and 5-6, the right angle connector 610 may further include a lossy material member 500. The lossy material member 500 may be disposed on the insulating housing 100. The lossy material member 500 can be electrically coupled to a plurality of ground conductors 220.

Any suitable lossy material may be used for these and other "lossy" structures. Materials that are electrically conductive but have some loss or absorb electromagnetic energy over a frequency range of interest through another physical mechanism are collectively referred to herein as "lossy" materials. The electrically lossy material may be formed of a lossy dielectric material and/or a poorly conducting material and/or a lossy magnetic material. The magnetically lossy material can be formed, for example, from materials traditionally considered to be ferromagnetic materials, such as those materials having a magnetic loss factor greater than approximately 0.05 over the frequency range of interest. The "magnetic loss factor" is the ratio of the imaginary part to the real part of the complex electrical permeability of the material. The actual lossy magnetic material or mixture containing lossy magnetic material may also exhibit a useful amount of dielectric loss or conductive loss effects over a portion of the frequency range of interest. Electrically lossy materials can be formed from materials traditionally considered dielectric materials, such as those materials having an electrical loss tangent greater than approximately 0.05 over the frequency range of interest. The "electrical loss tangent" is the ratio of the imaginary part to the real part of the complex electrical permeability of the material. Electrically lossy materials can also be formed from materials that are generally considered conductors, but which are also relatively poor conductors over the frequency range of interest, contain conductive particles or regions that are sufficiently dispersed to not provide high conductivity, or are otherwise prepared to have properties that result in relatively poor bulk conductivity over the frequency range of interest as compared to good conductors such as copper.

Electrically lossy materials typically have a bulk conductivity of from about 1 siemen/m to about 100000 siemen/m, and preferably from about 1 siemen/m to about 10000 siemen/m. In some embodiments, materials having a bulk conductivity between about 10 siemen/meter and about 200 siemen/meter may be used. As a specific example, materials having a conductivity between about 50 siemen/meter may be used. However, it should be appreciated that the conductivity of the material may be selected empirically or through electrical simulation using known simulation tools to determine an appropriate conductivity that provides suitably low crosstalk with suitably low signal path attenuation or insertion loss.

The electrically lossy material may be a partially conductive material, such as those having a surface resistivity between 1 Ω/square and 100000 Ω/square. In some embodiments, the electrically lossy material has a surface resistivity between 10 Ω/square and 1000 Ω/square. As a specific example, the material may have a surface resistivity of between about 20 Ω/square and 80 Ω/square.

In some embodiments, the electrically lossy material is formed by adding a filler comprising conductive particles to the adhesive. In such embodiments, the lossy material member can be formed by molding or otherwise shaping the adhesive with filler into a desired form. Examples of conductive particles that may be used as fillers to form the electrically lossy material include carbon or graphite formed into fibers, flakes, nanoparticles, or other types of particles. Metals in the form of powders, flakes, fibers, or other particles may also be used to provide suitable electrical loss properties. Alternatively, a combination of fillers may be used. For example, metal-plated carbon particles may be used. Silver and nickel are suitable metal plating for the fibers. The coated particles may be used alone or in combination with other fillers such as carbon flakes. The adhesive or matrix may be any material that will set, cure, or otherwise be used to position the filler material. In some embodiments, the adhesive may be a thermoplastic material conventionally used in the manufacture of electrical connectors to facilitate molding of the electrically lossy material into the desired shape and position as part of the manufacture of the electrical connector. Examples of such materials include Liquid Crystal Polymers (LCP) and nylon. However, many alternative forms of adhesive material may be used. A curable material such as an epoxy may act as the adhesive. Alternatively, a material such as a thermosetting resin or an adhesive may be used.

Also, while the adhesive material described above may be used to create an electrically lossy material by forming an adhesive around a filler of conductive particles, the application is not so limited. For example, the conductive particles may be impregnated in the formed matrix material or may be coated onto the formed matrix material, such as by applying a conductive coating to a plastic or ceramic component. As used herein, the term "adhesive" encompasses materials that encapsulate a filler, are impregnated with a filler, or otherwise serve as a substrate to hold a filler.

Preferably, the filler may be present in a sufficient volume percentage to allow for the creation of a conductive path from particle to particle. For example, when metal fibers are used, the fibers may be present in about 3% to 40% by volume. The amount of filler can affect the conductive properties of the material.

The filler material is commercially available, such as from Celanese corporation under the trade name

Materials sold which may be filled with carbon fiber or stainless steel filaments. Lossy materials such as binder preforms filled with lossy conductive carbon, such as those sold by Techfilm of Billerica, MassThose materials. The preform may include an epoxy adhesive filled with carbon fibers and/or other carbon particles. The binder surrounds the carbon particles which act as reinforcement for the preform. Such a preform may be inserted into a connector wafer to form all or part of a housing. In some embodiments, the preform may be bonded by an adhesive in the preform, which may be cured in a heat treatment process. In some embodiments, the adhesive may take the form of a separate conductive or non-conductive adhesive layer. In some embodiments, alternatively or additionally, the adhesive in the preform may be used to secure one or more conductive elements, such as foil strips, to the lossy material.

Various forms of reinforcing fibers, woven or non-woven forms, coated or uncoated, may be used. Non-woven carbon fibers are one suitable material. Other suitable materials such as custom blends sold by RTP company may be employed as the present disclosure is not limited in this respect.

In some embodiments, the lossy material members may be fabricated by stamping a preform or sheet of lossy material. For example, the insert may be formed by stamping a preform as described above with an appropriate pattern of openings. However, other materials may be used in addition to or as an alternative to such preforms. For example, a sheet of ferromagnetic material may be used.

However, the lossy material members may be formed in other ways. In some embodiments, the lossy material member may be formed by overlapping layers of lossy and conductive material, such as metal foil. The layers may be securely attached to each other, such as by using an epoxy or other adhesive, or may be held together in any other suitable manner. The layers may have the desired shape before being secured to each other, or may be stamped or otherwise formed after they are held together.

The lossy material member 500 can effectively suppress resonances within the ground conductor 220 that may interfere with signals, and thus suppressing resonances can reduce signal interference, thereby effectively increasing signal transmission speed and signal integrity. Also, the lossy material member 500 may also provide dual electrical coupling with the ground conductor 220, along with the conductive shell 400. In this way, even if one of the lossy material member 500 and the conductive shell 400 fails to be electrically coupled to the ground conductor 220, the other one can also serve as a shield to ensure the stability of signal transmission.

Alternatively, as shown in fig. 5-6, the plurality of ground conductors 220 are electrically coupled to the conductive shell 400 at a first location thereon, and the plurality of ground conductors 220 are electrically coupled to the lossy material member 500 at a second location thereon. The first position and the second position may be at the same position or spaced apart by a predetermined distance. That is, the electrical contact portion between the conductive shell 400 and the ground conductor 220 and the electrical contact portion between the lossy material member 500 and the ground conductor 220 may be the same portion or spaced apart by a predetermined distance. Therefore, the conductive shell 400 and the lossy material member 500 can be electrically connected to the ground conductor 220 from different positions, and the conductive shell 400 and the lossy material member 500 can be prevented from being short-circuited due to a too short distance, so that the shielding effect on the signal conductor 210 can be prevented.

Alternatively, as shown in fig. 5-6, conductive shell 400 and lossy material member 500 may be electrically coupled to plurality of ground conductors 220 on either side of plurality of conductors 200, respectively. The conductive shell 400 is generally disposed outside the insulating housing 100 and the lossy material member 500 may be embedded inside the insulating housing 100. As shown in fig. 8, for a right angle connector 610, lossy material members 500 may be disposed inside the generally L-shaped conductors 200, appearing as being semi-enclosed by the conductors 200. As shown in fig. 3, the lossy material member 500 may be embedded in the bottom of the insulating housing 100 from the bottom surface. And conductive shell 400 may be electrically coupled to conductor 200 outside of conductor 200. The conductor 200 may extend through between the conductive housing 400 and the lossy material member 500. Therefore, the left side and the right side of each pair of signal conductors 210 are respectively shielded by the adjacent ground conductors 220, the front side and the back side of each pair of signal conductors 210 are respectively shielded by the conductive shell 400 and the lossy material member 500, and each pair of signal conductors 210 pass through the frame surrounded by the ground conductors 220, the conductive shell 400 and the lossy material member 500, so that each pair of signal conductors 210 can be shielded and restrained on four sides, thereby remarkably reducing crosstalk and improving signal integrity.

Preferably, as shown in fig. 3, the lossy material member 500 may be disposed adjacent to the mounting surface 120. Impedance discontinuities and crosstalk may be more severe here. By placing the lossy material member 500 close to the mounting end of the conductor 200, there is better electrical performance.

Preferably, as shown in fig. 3, 5 and 8, the lossy material member 500 may have a plurality of first projections 510. The plurality of first protrusions 510 may be electrically coupled with the plurality of ground conductors 220, respectively. The first projection 510 is not disposed at a position corresponding to the signal conductors 210 to prevent the lossy material member 500 from being electrically coupled to the plurality of signal conductors 210.

Further, as shown in fig. 5, 8 and 9C, each of the plurality of first protrusions 510 may be provided with a slot 520 thereon. The plurality of ground conductors 220 may have outwardly extending ground claws 221. The slots 520 may receive the ground dogs 221 of the corresponding ground conductors 220. Thus, the production and installation are easier, the structure of electrically coupling the first protrusion 510 and the ground conductor 220 is more reliable, and the reliability of the right-angle connector 610 is improved.

Preferably, the lossy material member 500 may also have a plurality of second projections (not shown). The plurality of second projections may correspond to the plurality of signal conductors 210. The second protrusion may have the same structure as the first protrusion 510. Specifically, the first projections have the same structure as each other, and the second projections have the same structure as each other. The first and second projecting portions also have the same structure therebetween. Therefore, the first projecting portion and the second projecting portion may also be simply referred to as projecting portions. That is, the lossy material member 500 is provided with a projection at a position corresponding to each conductor 200 in appearance. With respect to the embodiment shown in fig. 9C, two second protrusions may be further disposed between two adjacent first protrusions 510. However, when assembled, each of the plurality of signal conductors 210 may be spaced apart from a corresponding second projection. Accordingly, the signal conductors 210 and the ground conductors 220 may differ in structure. As shown in fig. 9A-9B, the signal fingers 211 of the signal conductors 210 may have a height that is less than the ground fingers 221 of the ground conductors 220. For example, the tops of both the signal and ground latches 211 and 221 may be more or less flush, but the bottom of the signal latch 211 is significantly above the bottom of the ground latch 221. As such, when first projection 510 is electrically coupled with ground conductor 220, second projection may be vertically spaced apart from signal conductor 210.

With this arrangement, even if the positions of the signal conductor 210 and the ground conductor 220 are changed, the structure of the lossy material member 500 does not need to be changed. Thereby, the inventory and management costs of the lossy material members 500 can be reduced. Based on this, the right-angle connector 610 of the present disclosure can configure the number and arrangement of the signal conductors 210 and the ground conductors 220 as desired, so that both the cost and the performance can meet the needs of users, and the market competitiveness of the right-angle connector 610 is high.

Preferably, as shown in fig. 8, the lossy material member 500 does not overlap the broadsides 212 of the plurality of signal conductors 210, as viewed along the direction of alignment of the plurality of conductors 200. This may effectively lose the material member 500 from electrically coupling to the plurality of signal conductors 210.

Preferably, the insulation case 100 may be provided with a grounding jaw receiving groove 102 fitted with the grounding jaw 221, as shown in fig. 5. The grounding claw 221 may be inserted into the grounding claw receiving groove 102 to hold the grounding conductor 220 on the insulation housing 100. The grounding pawl receiving groove 102 communicates with the mounting opening 101 (see fig. 7). The insulation case 100 may further have an accommodating space 104 provided thereon. The lossy material member 500 can be received in the receiving space 104. The receiving space 104 may communicate with the grounding pawl receiving groove 102. The lossy material member 500 can be adapted to the shape of the receiving space 104, and when the lossy material member 500 is installed in the receiving space 104, it can be electrically coupled to the ground conductor 220.

As previously described, each signal conductor 210 may also have a signal finger 211 extending outwardly. The insulating housing 100 may further be provided with a signal jaw receiving groove 103 adapted to the signal jaw 211, as shown in fig. 6. The protruding direction of the signal jaw 211 coincides with the protruding direction of the ground jaw 221. Both of which may project forwardly. The signal jaws 211 are inserted into the signal jaw receiving grooves 103 to hold the signal conductors 210 on the insulation housing 100. The signal pawl receiving groove 103 communicates with the mounting opening 101 (see fig. 7). Optionally, the signal pawl receiving slots 103 are not in communication with the receiving spaces 104 or are spaced apart so that the signal conductors 210 are electrically isolated from the lossy material member 500 when assembled. The distance D (see fig. 5) of the ground pawl receiving slot 102 from the mounting surface 120 is less than the distance D (see fig. 6) of the signal pawl receiving slot 103 from the mounting surface 120. That is, the bottom surface of the ground pawl receiving groove 102 is lower than the bottom surface of the signal pawl receiving groove 103. In this way, there may be sufficient space to provide the receiving space 104 at a position close to the mounting surface 120. The receiving space 104 may be located between the mounting surface 120 and the signal pawl receiving slot 103.

Further, each ground conductor 220 may also have a protrusion 224, as shown in fig. 5 and 8, the protrusion 224 protruding in the direction opposite to the protruding direction of the ground pawl 221. The protrusion 224 is in electrical contact with the conductive housing 400. Specifically, the protrusion 224 may be in electrical contact with the elastic sheet 420 of the conductive housing 400. In this way, the conductive shell 400 and the lossy material member 500 can be in electrical contact with the ground conductor 220 on both sides of the ground conductor 220, and since the protrusions 224 and the ground claws 221 protrude in opposite directions, respectively, the distance between the electrical contact formed between the conductive shell 400 and the ground conductor 220 and the electrical contact formed between the lossy material member 500 and the ground conductor 220 can be increased, and the shielding effect of the conductive shell 400 and the lossy material member 500 on the signal conductor 210 can be effectively mentioned, improving signal integrity.

One or more of the features mentioned above may be combined in any combination, unless specifically stated otherwise, or clearly contradicted by context. For example, as shown in fig. 3 and 5-6, the conductive housing 400 may be used in conjunction with a lossy material member 500.

Various changes may be made to the structures illustrated and described herein. It should be understood that aspects of the present disclosure are not limited to the use of right angle connectors 610. In other embodiments, see fig. 11-13, as the concepts disclosed herein may be broadly applied to many types of electrical connectors, including, but not limited to, one or more of right angle connectors 610, cross-mount connectors 620, and vertical mount connectors 630. Wherein the cross-mount connector 620 and the vertical-mount connector 630 may include a plurality of conductive housings 400. A plurality of conductive housings 400 may be looped around each other to secure the insulating housing 100 therein. Optionally, the cross mount connector 620 and the vertical mount connector 630 may also include a plurality of lossy material members 500, for example, two lossy material members 500 may be included. Each lossy material member 500 corresponds to a respective row of conductors 200, electrically coupled to ground conductors 220 in its respective row. The same reference numerals are used for the same or similar parts of fig. 11-14 as fig. 1-8, 9A-9C and 10, and a detailed description thereof is omitted for the sake of brevity.

Thus, the present disclosure has been described in terms of several embodiments, but it will be appreciated that numerous variations, modifications, and improvements will readily occur to those skilled in the art in light of the teachings of the disclosure, and that such variations, modifications, and improvements are within the spirit and scope of the disclosure as claimed. The scope of the disclosure is defined by the appended claims and equivalents thereof. The foregoing embodiments are presented for purposes of illustration and description only and are not intended to limit the present disclosure to the scope of the described embodiments.

In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front", "rear", "upper", "lower", "left", "right", "lateral", "vertical", "horizontal" and "top", "bottom", etc., are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse explanation, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present disclosure; the terms "inner" and "outer" refer to the interior and exterior of the respective components as they relate to their own contours.

Various changes may be made to the structures illustrated and described herein. For example, the conductive housing and lossy material members described above may be used in any suitable electrical connector, such as backplane connectors, daughter card connectors, stacking connectors, mezzanine connectors, I/O connectors, chip sockets, Gen Z connectors, and the like.

Moreover, while many of the inventive aspects are described above with reference to a right angle electrical connector, it should be understood that aspects of the present disclosure are not so limited. As such, any of the inventive features, alone or in combination with one or more other inventive features, can also be used with other types of electrical connectors, such as coplanar electrical connectors and the like.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe the spatial relationship of one or more components or features shown in the figures to other components or features. It is to be understood that the spatially relative terms are intended to encompass not only the orientation of the component as depicted in the figures, but also different orientations of the component in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

Claims

1. An electrical connector, comprising:

an insulating housing having a mating face and a mounting face;

a plurality of conductors disposed on the insulative housing, each of the plurality of conductors including a central portion, a mounting end portion extending from the central portion beyond the mounting face and a mating contact end portion extending from the central portion to the mating face, the mounting end portion configured to electrically connect with a printed circuit board when the electrical connector is attached to the printed circuit board, the plurality of conductors including a plurality of signal conductors and a plurality of ground conductors dispersed between the plurality of signal conductors; and

a conductive shell that overlies at least a portion of the insulative housing and is electrically coupled to the plurality of ground conductors.

2. The electrical connector of claim 1, wherein the insulative housing exposes the plurality of conductors, and the conductive shell covers the conductors, the conductive shell being electrically coupled to exposed portions of the plurality of ground conductors.

3. The electrical connector of claim 1, wherein the conductive shell is in electrical contact with the plurality of ground conductors by a plurality of contact members, respectively.

4. The electrical connector of claim 3, wherein the plurality of contact members extend from within the conductive housing toward the conductive housing, and each of the plurality of ground conductors is in electrical contact with a corresponding contact member.

5. The electrical connector of claim 4, wherein each of the plurality of ground conductors has a projection disposed thereon, the projection extending beyond the insulative housing and abutting the corresponding contact member.

6. The electrical connector of claim 4, wherein each of the plurality of ground conductors has a projection disposed thereon, the projection extending beyond the insulative housing, the conductive shell being configured to be mounted to the insulative housing from above, each of the plurality of contact members abutting a top surface of the projection on the corresponding ground conductor and a side surface of the corresponding ground conductor opposite the plurality of contact members.

7. The electrical connector of claim 4, wherein each of the plurality of contact members includes a first angled section extending obliquely from the conductive housing toward a corresponding ground conductor and a second angled section extending obliquely from the first angled section away from the corresponding ground conductor, the first and second angled sections forming a hook at their connection, the hook in electrical contact with the corresponding ground conductor.

8. The electrical connector of claim 3, wherein each of the plurality of contact members and the corresponding ground conductor lie in a plane parallel to the plurality of signal conductors.

9. The electrical connector of claim 3, wherein each of the plurality of contact members extends from a corresponding ground conductor toward and is in electrical contact with the conductive housing.

10. The electrical connector of claim 9, wherein the conductive housing is provided with a plurality of through holes corresponding to the plurality of contact members, each of the plurality of contact members being inserted into a corresponding through hole to make electrical contact with the conductive housing.

11. The electrical connector of claim 1, wherein the conductive shell is provided with a lug thereon, and the conductive shell is secured to the insulative housing by the lug.

12. The electrical connector of claim 11, wherein the lugs are a plurality, one or more of the lugs being configured for soldering to a ground pad on the printed circuit board.

13. The electrical connector of claim 1, wherein a connection portion is provided on the conductive housing for connection to the printed circuit board such that the electrical connector is attached to the printed circuit board.

14. The electrical connector of claim 13, wherein the connecting portion is a solder lug.

15. The electrical connector of claim 14, wherein the solder lug is configured for soldering to a ground pad on the printed circuit board.

16. The electrical connector of any one of claims 1-15, further comprising a lossy material member disposed on the insulative housing and electrically coupled to the plurality of ground conductors.

17. The electrical connector of claim 16, wherein the conductive shell and the lossy material member are electrically coupled to the plurality of ground conductors on either side of the plurality of conductors, respectively.

18. The electrical connector of claim 16, wherein the lossy material member is disposed adjacent the mounting face.

19. The electrical connector of claim 16, wherein the lossy material member has a plurality of first projections that are electrically coupled with the plurality of ground conductors, respectively.

20. The electrical connector of claim 19, wherein each of the first plurality of projections has a slot disposed thereon, each of the plurality of ground conductors having an outwardly extending ground finger, the slot receiving the ground finger of a corresponding ground conductor.

21. The electrical connector of claim 19, wherein the lossy material member further has a plurality of second projections corresponding to the plurality of signal conductors, the plurality of second projections having the same structure as the plurality of first projections, each of the plurality of signal conductors being spaced apart from a corresponding second projection.

22. The electrical connector of claim 20, wherein the insulative housing is provided with a grounding pawl receiving slot adapted to the grounding pawl, the grounding pawl being inserted into the grounding pawl receiving slot to retain the grounding conductor on the insulative housing, and wherein the insulative housing is further provided with a receiving space in which the lossy material member is received, the receiving space being in communication with the grounding pawl receiving slot.

23. The electrical connector of claim 22, wherein each of the plurality of signal conductors has an outwardly extending signal finger, the signal finger extending in a direction generally coincident with the direction of extension of the ground finger, the insulative housing further having a signal finger receiving slot formed therein for mating with the signal finger, the signal finger being received in the signal finger receiving slot for retaining the signal conductor on the insulative housing, the ground finger receiving slot being spaced from the mounting surface by a distance less than the distance from the signal finger receiving slot to the mounting surface, the receiving space being defined between the mounting surface and the signal finger receiving slot.

24. The electrical connector of claim 16, wherein the lossy material member does not overlap the broadsides of the plurality of signal conductors as viewed along the direction of alignment of the plurality of conductors.

25. The electrical connector of claim 1, wherein the conductive shell has a minimum distance to the plurality of signal conductors in the range of 0.2mm-0.5 mm.

26. The electrical connector of claim 1, wherein the electrical connector comprises one or more of a right angle connector, a vertical mount connector, and a straddle mount connector.