# Patent

## Title
Electrical connector assembly with high-density configuration

## Abstract

An electrical connector assembly (100), comprises: a housing (1) having a receiving room (11) therein communicated with an exterior along a longitudinal direction, and the housing comprising a first shield part (15) and second shield part (16) assembled with each other; two paralleled printed circuit boards (21, 22) received into the receiving room and positioned in the housing; a metallic holder (8) binding the first and second shield parts; and a latch mechanism assembled to an exterior surface of the housing and having a portion shielded by the metallic holder.

## Background
FIELD OF THE INVENTION
The present invention generally relates to connectors suitable for transmitting data, more specifically to input/output (I/O) connectors with high-density configuration and high data transmitting rate.
DESCRIPTION OF PRIOR ART
One aspect that has been relatively constant in recent communication development is a desire to increase performance. Similarly, there has been constant desire to make things more compact (e.g., to increase density). For I/O connectors using in data communication, these desires create somewhat of a problem. Using higher frequencies (which are helpful to increase data rates) requires good electrical separation between signal terminals in a connector (so as to minimize cross-talk, for example). Making the connector smaller (e.g., making the terminal arrangement more dense), however, brings the terminals closer together and tends to decrease the electrical separation, which may lead to signal degradation.
In addition to the desire at increasing performance, there is also a desire to improve manufacturing. For example, as signaling frequencies increase, the tolerance of the locations of terminals, as well as their physical characteristics, become more important. Therefore, improvements to a connector design that would facilitate manufacturing while still providing a dense, high-performance connector would be appreciated.
Additionally, there is a desire to increase the density of I/O plug-style connectors and this is difficult to do without increasing the width of the connectors. Increasing the width of the plug connectors leads to difficulty in fitting the plug into standard width routers and/or servers, and would require a user to purchase non-standard equipment to accommodate the wider plug converters. As with any connector, it is desirable to provide a reliable latching mechanism to latch the plug connector to an external housing to maintain the mated plug and receptacle connectors together modifying the size and/or configuration the connector housing may result in a poor support for a latching mechanism. Latching mechanisms need to be supported reliably on connector housings in order to effect multiple mating cycles. Accordingly, certain individuals would appreciate a higher density connector that does not have increased width dimensions and which has a reliable latching mechanism associated therewith.
As discussed above, an improved electrical connector overcoming the shortages of existing technology is needed.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide an electrical connector assembly with high-density configuration and high data transmitting rate.
In order to achieve the above-mentioned objects, an electrical connector assembly, comprises a housing having a receiving room therein communicated with an exterior along a longitudinal direction, and the housing comprising a first shield part and second shield part assembled with each other; two paralleled printed circuit boards received into the receiving room and positioned in the housing; a metallic holder binding the first and second shield parts; and a latch mechanism assembled to an exterior surface of the housing and having a portion shielded by the metallic holder.
Other objects, features and advantages of the invention will be apparent from the following detailed description taken in connection with the accompanying drawings.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of an electrical connector assembly in accordance with the present invention;
FIG. 2 is another perspective view of the electrical connector assembly of FIG. 1;
FIG. 3 is an exploded, perspective view of the electrical connector assembly of FIG. 1;
FIG. 4 is an exploded, perspective view of the electrical connector assembly of FIG. 2;
FIG. 5 is similar to FIG. 3, but viewed from another aspect;
FIG. 6 is similar to FIG. 4, but viewed from another aspect;
FIG. 7 is an assembled view of the partially electrical connector assembly of FIG. 1;
FIG. 8 is another assembled view of the partially electrical connector assembly of FIG. 7;
FIG. 9 is a partially assembled view of the electrical connector assembly of FIG. 1;
FIG. 10 is another partially assembled view of the electrical connector assembly of FIG. 9;
FIG. 11 is a cross section view of the electrical connector assembly of FIG. 1 taken along line 11-11;
FIG. 12 is a cross section view of the electrical connector assembly of FIG. 1 taken along line 12-12;
FIG. 13 is a cross section view of the electrical connector assembly of FIG. 1 taken along line 13-13;
FIG. 14 is a cross section view of the electrical connector assembly of FIG. 1 taken along line 14-14.



DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
Reference will now be made to the drawing figures to describe the present invention in detail.
FIGS. 1 to 4 illustrate perspective views of an electrical connector assembly 100 made in accordance with the present invention. And in conjunction with FIGS. 9 to 13, the electrical connector assembly 100 comprises a housing 1 having a receiving room 11 therein, two paralleled printed circuit boards (PCBs) 2 disposed in the receiving room 11, a spacer 3 disposed between the two printed circuits boards 2 and positioned with the housing 1, two cables 4 respectively electrically connected with a printed circuit board 2 and a spacer or strain relief 5 disposed in the housing 1 and spaced apart with the two cables 4. The electrical connector assembly 100 further comprises a latch mechanism assembled to a top surface of the housing 1 and a metallic holder 8 surrounding a portion of the housing 1 and the latch mechanism. The latch mechanism comprises a latching member 6 and a pulling member 7 interconnected with each other.
Referring to FIGS. 1 to 6, the housing 1 is made of metallic material and formed in a die-cast manner. The housing 1 defines a body portion 12 and a mating portion 13 extending forward from the body portion 12 for mating to a complementary connector (not shown). The body portion 12 has a cross section larger than that of mating portion 13. The housing 1 defines a receiving room 11 extending rearward from a front surface to a rear surface thereof. The body portion 12 of the housing 1 has a top surface defined as a first surface 121, the mating portion 13 of the housing 1 has a top surface defined as a second surface 131. The first surface 121 is disposed above the second surface 131. And, the first surface 121 defines an inclined surface 1211 toward to the second surface 131. The body portion 12 defines a receiving cavity 14 extending downwardly from the inclined surface 1211 for a distance. The receiving cavity 14 has a bottom surface 141 located on a same level with the second face 131. And, the bottom surface 141 is defined as a third surface. A prominence 142 is formed in a front edge of the receiving cavity 14. Thus, the second surface 131 is separated to the third surface 131 along a front to rear direction. And, the prominence 142 further defines a pair of protrusions 142 formed on a top surface thereof. In addition, a pair of supporting portions 143 are formed on two inner side surfaces of the receiving cavity 14 for supporting a front curving portion 72 of the pulling member 7. Each supporting portions 143 has a front arc top surface and a rear inclined top surface. A slit 144 is formed in back of the receiving cavity 14 and communicated with the receiving cavity 14.
Referring to FIGS. 1 to 6 and in conjunction with FIGS. 9 to 10, the housing 1 comprises a box-shape first shield part 15 and a second shield part 16 assembled with each other. The first shield part 15 defines a rectangular frame 151 formed at a front end thereof and defined as a mating port of the housing 1. The first shield part 15 defines a passageway 155 communicated with an exterior along a front to rear direction. The first shield part 15 further defines an opening 152 formed at a bottom end thereof to make the passageway 155 communicated with an exterior along a vertical direction. The opening 152 of the first shield part 15 will be shielded when the second shield part 16 is assembled to the first shield part 15. The first shield part 15 defines two first positioning posts 153 formed on an inner side surface thereof and another two first positioning posts 153 formed on another inner side surface thereof. Each two first positioning posts 153 are spaced apart with each other along a front-to-rear direction. Each first positioning post 153 has a semi-circular cross section. The first positioning posts 153 are used for supporting the printed circuit board 2 along an up-to-down direction. In addition, two second positioning posts 154 are respectively formed on two inner side surface of the first shield part 15. Each second positioning post 154 is disposed between the two first positioning posts 154 along a front-to-rear direction and used for limiting a movement of the printed circuit board 2 along a front to rear direction. Each second positioning post 154 also has a semi-circular cross section. And, the second positioning post 154 is longer than the first positioning post 153 along an up-to down-direction.
Referring to FIGS. 3 to 6 and in conjunction with FIGS. 9 to 10, two printed circuits 2 includes a first PCB 21 and a second PCB 22 respectively located on an upper side and a lower side of the receiving room 11 of the insulative housing 1 and a second PCB 2. The first PCB 21 defines a first mating section 211 formed at a front end thereof and a first terminating section 212 formed at a rear end thereof. The second PCB 22 defines a second mating section 221 formed at a front end thereof and a second terminating section 222 formed at a rear end thereof. The first PCB 21 further defines a pair of first semi-circular cutouts 213 formed at two sides thereof. The second PCB 22 further defines a pair of second semi-circular cutouts 223 formed at two sides thereof. The first and second cutouts 213, 223 are used for cooperating with the two second positioning post 154 of the first shield part 15. A plurality of front conductive contacts (not figured) are formed on the first and second mating sections 211, 221. A plurality of rear conductive contacts (not figured) are formed on the first and second terminating sections 212, 222.
Referring to FIGS. 3 to 6 and in conjunction with FIGS. 11 and 13, a spacer 3 is formed of insulative material and defines an upper surface 31 and a lower surface 32. The spacer 3 defines a pair of ribs 311 respectively formed at two sides of the upper surface 31 and another pair of ribs 312 respectively formed at two sides of the lower surface 32 for supporting the first and second PCBs 21, 22. The spacer 3 further defines a pair of grooves 33 respectively formed on two sides thereof and extending along a vertical direction for cooperating with the corresponding second positioning posts 154. The spacer 3 further defines a grounding plate 35 integrative formed therein. Thus, the grounding plate 35 is firmly positioned in the spacer 3. The spacer 3 has a slot 34 for receiving the grounding plate 35. The first and second PCBs 21, 22 are separated by the spacer 3 along an up-to-down direction.
Referring to FIGS. 3, 9, 10 and 14, two cables 4 comprises a first cable 41 and a second cable 42. The first cable 41 has a plurality of first conductors 411 therein electrically connected to a first terminating section 212 of the first PCB 21. The second cable 42 has a plurality of second conductors 421 electrically connected to a second terminating section 222 of the second PCB 22. A first ring 412 is disposed at a front end of the first cable 41 and surrounding a portion of the first cable 41. A second ring 422 is disposed at a front end of the second cable 42 and surrounding a portion of second cable 42.
Referring to FIGS. 3 to 6 and in conjunction with FIGS. 12 and 14, a strain relief 5 is made of metallic material and disposed into the housing 1. The strain relief 5 has two recesses 51 respectively formed on a top and bottom surfaces thereof for receiving a portion of the first and second rings 412, 422. The strain relief 5 defines a pair of receiving holes 52 formed on a rear surface thereof. The pair of receiving holes 52 are located at two sides of the rear surface.
Referring to FIGS. 1 to 6 and in conjunction with FIGS. 9 to 11, the latching member 6 is stamped and formed from a metallic plate and comprises a vertical retaining portion 61, a connecting portion 62 extending forwardly from a bottom side of the retaining portion 61 and a latching portion 63 extending forwardly from the connecting portion 62. A front portion of the latch 6 is defined as a latching portion 63. The retaining portion 61 defines a plurality of sharp projections 611 formed at two sides thereof. The connecting portion 62 defines a rectangular hole 621 and a pair of quadrate holes 622 disposed at two sides of the rectangular hole 621. The latching portion 63 defines a pair of barbs 631 formed at two sides thereof.
Referring to FIGS. 3 to 6 and in conjunction with FIGS. 11, the pulling member 7 is made of insulative material and structured in a flat shape. The pulling member 7 defines a horizontal section 71 and a curving section 72 extending forwardly and downwardly from the horizontal section 71. The pulling member 7 defines an actuating section 73 formed at a front free end thereof and a connecting section 74 connecting the actuating section 73 to the curving section 72. The actuating section 73 is generally perpendicular to the connecting section 74. The actuating section 73 is generally in a shape of cylinder extending along a transversal direction. The pulling member 7 has a slit 711 formed a rear end thereof. A tape 9 is passed through the slit 711 and connected to the pulling member 7.
Referring to FIGS. 3 to 6 and in conjunction with FIGS. 11 and 12, the metallic holder 8 defines a main portion 81 binding the first shield part 15 and the second shield part 16 and a shielding portion 82 extending forwardly from the main portion 81. The main portion 81 has a top wall 811, a bottom wall 812 and a pair of side walls 813 connected with the top wall 811 and the bottom wall 812. A receiving space 814 is formed by the top wall 811, the bottom wall 812 and the pair of side walls 813. The shielding portion 82 extends forwardly and downwardly from the top wall 811. Each side wall 813 defines a tab 815 extending into the receiving space 814 from a rear edge thereof. And, the tab 815 is perpendicular to the side wall 813 and defines a through hole 8151 corresponding to a receiving hole 52 of the strain relief 5. Two screws 83 are passed through the two through holes 8151 and received into the receiving holes 53 to lock the metallic holder 8 and the strain relief 5. As the strain relief 5 disposed in the housing 1, so the metallic holder 8 is indirectly positioned with the housing 1 through the screws 83.
Referring to FIGS. 1 to 14, the assembling process of the electrical connector assembly 100 made in according to the present invention starts from soldering the first and second conductors 411, 421 of the first and second cables 41, 42 respectively to the first and second terminating sections 212, 222 of the first and second PCBs 21, 22.
After the first cable 41 is assembled to the first PCB 21, then turning over the first shield part 15 to make the opening 152 facing upward and assembling the first PCB 21 and the first cable 41 together to the passageway 155 of the first shield part 15. The first PCB 21 is supported by the first positioning posts 153 formed in the passageway 155 of the shield part 15 along a vertical direction. The first PCB 21 is positioned with the shield part 15 along a front-to-rear direction due to two first cutouts 213 of the first PCB 21 cooperated with the pair of second positioning posts 154 of the shield part 15. And, a front end of the first cable 41 is supported by a rear end of the shield part 15.
After the first cable 41 and the first PCB 21 are assembled to the first shield part 15, then assembling the strain relief 5 to a rear end of the passageway 155 of first shield part 15. And, the first ring 412 has a half portion received into a corresponding structure of the first shield part 15. The first ring 42 has another half portion received into a recess 51 of the strain relief 5.
After the strain relief 5 is assembled to the first shield part 15, then assembling the spacer 3 to the first shield part 15. The spacer 3 is positioned with the first shield part 15 and located on the first PCB 21. The pair of second positioning posts 154 of the first shield part 15 pass through the corresponding two grooves 33 of the spacer 3 along an up-to-down direction to limit a movement of the spacer 3 along a front to rear direction.
After the spacer 3 is assembled to the first shield part 15, then assembling the second PCB 22 and the second cable 42 together to the first shield part 15 and located on the spacer 3. The second PCB 22 is positioned with the first shield part 15 along a front-to-rear direction due to two second cutouts 223 of the second PCB 22 cooperated with the pair of second positioning posts 154 of the shield part 15. And, a front end of the second cable 42 is supported by the strain relief 5. The second ring 422 of the second cable 42 has a half portion located in another recess 51 of the strain relief 5.
After the second PCB 22 and the second cable 42 are assembled to the first shield part 15, then assembling the second shield part 16 to the first shield part 15. Thus, the opening 152 of the first shield part 15 is shielded by second shield part 16 along an up-to-down direction. And, the first and second PCBs 21, 22 are received into the receiving room 11 of the housing 1. The first and second PCBs 21, 22 are also supported by the second shield part 16 along a up-to-down direction.
After the second shield part 16 is assembled to the first shield part 15, then assembling the latching member 6 to the pulling member 7 together through following steps. Firstly, the latching member 6 is disposed in front of pulling member 7 and arranged perpendicular to the pulling member 7. Secondly, the actuating section 73 of the pulling member 6 is passed through the rectangular hole 621 of the latching member 6 and located below the latching member 6. Thirdly, the latching member 6 is rotated 90 degree to make the latching member 6 and the pulling member 6 in line. Thus, the latching member 6 is interconnected with the pulling member 7. And, the latching 6 is not easily discrete from the pulling member 7 due to the width of the actuating section 73 is wider than that of the rectangular hole 621.
Then, assembling the latching member 6 and the pulling member 7 together to an exterior surface of housing 1. The horizontal section 71 of the pulling member 7 is located on the first surface 121 of the body portion 12 of the housing 1. The curving section 72 of the pulling member 7 is supported by the pair of supporting portions 143 formed in the receiving cavity 14. The rear end of the pulling member 7 extends rearwardly beyond the rear surface of the housing 1. In addition, the latching member 6 is received into the receiving cavity 14. Thus, the actuating section 73 of the pulling member 7 is disposed between the latching member 6 and the third surface 141 of the receiving cavity 14. Two sides of the retaining portion 61 of the latching member 6 are disposed into the slit 144 to make the latching member 6 engaged with the housing 1. The connecting portion 62 of the latching member 6 is located above the third surface 141. The latching portion 63 extends forwardly and is located above the second surface 131 of the mating portion 13 of the housing 1. The latching portion 63 is cantilevered from the retaining portion 61. A tape 9 is passed through the slit 711 and connected to the pulling member 7. When a rearward pulling force is exerted on a rear end of the pulling member 7 or the tape 9, the latching portion 63 of the latching member 6 will be raised up. When the rearward pulling force is released, the latching portion 63 of the latching member 6 will resume to an original state.
Finally, assembling a metallic holder 8 to the housing 1. The main portion 81 of the metallic holder 8 binds the first part 15, the second shield part 16 and a portion of the pulling member 7 together. The pulling member 7 can be moved along a front to rear direction relative to the housing 1 and limited by the metallic holder 8 along a vertical direction. The strain relief 5 is also limited in the housing 1 by the metallic holder 8 through the screws 83. The rear end of the latching member 6 and the front end of the pulling member 7 is shielded by the shielding portion 82 of the metallic holder 8.
After the above assembling steps, the entire process of assembling of the electrical connector assembly 100 is finished. The electrical connector assembly 1 has a new mating surface to meet higher and higher data transmitting rate. In addition, the electrical connector assembly 1 has a narrow profile and high-density configuration. Thus, the complementary connector (not shown) for mating with the electrical connector assembly 100 will also occupy little space to meet a miniaturization of an internal room of the communication device. On another aspect, a reliable latch mechanism is provided to an exterior surface of the housing. And, an easily and conveniently operating manner between the latching member 6 and the pulling member 7 is achieved.
It will be understood that the invention may be embodied in other specific forms without departing from the spirit or central characteristics thereof. The present examples and embodiments, therefore, are to be considered in all respects as illustrative and not restrictive, and the invention is not to be limited to the details given herein.

## Claims

1. An electrical connector assembly, comprising:
a housing having therein a receiving room communicating with an exterior along a longitudinal direction, and the housing comprising a first shield part and second shield part assembled with each other;
two paralleled printed circuit boards received into the receiving room and positioned in the housing;
a metallic holder binding the first and second shield parts; and
a latch mechanism assembled to an exterior surface of the housing and having a portion shielded by the metallic holder;
wherein the electrical connector assembly further comprises two cables extending into the receiving room and respectively electrically connected with two printed circuit boards;
wherein the electrical connector assembly further comprises a strain relief disposed in a rear end of the receiving space and separating the two cables along an up-to-down direction;
wherein the electrical connector assembly further defines at least one engaging means engaging the metallic holder and the strain relief together.

2. The electrical connector assembly as recited in claim 1, wherein the electrical connector assembly further comprises a spacer disposed between the two printed circuit boards, and the spacer further defines a grounding plate integrative formed therein.

3. The electrical connector assembly as recited in claim 1, wherein the housing defines a mating port formed on front end of the first shield part, two mating portions of the two printed circuit boards are disposed in the mating port.

4. The electrical connector assembly as recited in claim 1, wherein the latch mechanism comprises a latching member and a pulling member interconnected with each other and respectively located on different surfaces of the housing, the pulling member is located on a higher surface, the latching member is located on a lower surface.

5. The electrical connector assembly as recited in claim 4, wherein the pulling member has a front end extending downwardly and passing through the latching member and located below the latching member.

6. The electrical connector assembly as recited in claim 5, wherein the latching member is operated in a lever manner when the pulling member is moveable in a horizontal direction.

7. The electrical connector assembly as recited in claim 4, wherein the metallic holder defines a front shield portion shielding the front end of the pulling member and a rear end of the latching member.

8. An electrical connector assembly, comprising:
a metallic housing having a body portion and a mating portion extending forwardly form the body portion, the body portion defining a first surface and a third surface lower than the first surface, the mating portion defining a second surface;
a plurality of conductive contacts disposed in the housing;
a cable electrically connected with the conductive contacts;
a latching member located on the third surface, the latching member defining a rear end engaged with the housing and a front end extending forwardly and located above the second surface;
a pulling member for deflecting the latching member, the pulling member located on the first surface and moveable relative to the housing along a front-to-rear direction, the pulling member having a front actuating section interconnected with the latching member, whereby the pulling member is pulled rearward, the actuating section moves upward and causes the front end of latching member to be raised up;
wherein the actuating section is passed through the latching member and located between the latching member and the third surface.

9. The electrical connector assembly as recited in claim 8, wherein the housing comprises an upper shield part and a lower shield part assembled with each other, the electrical connector further comprises a metallic holder binding the first and second shield parts.

10. The electrical connector assembly as recited in claim 9, wherein the body portion of the housing is surrounded by the metallic holder, the body portion has a cross section larger than that of the mating portion.

11. The electrical connector assembly as recited in claim 9, wherein the metallic housing defines a rectangular mating port formed on a front end of the upper shield part.

12. The electrical connector assembly as recited in claim 9, wherein the electrical connector assembly further comprises a strain relief in the housing and a pair of screws assembled to a rear end of the strain relief, and the metallic holder is engaged with strain relief through the pair of screws.

13. An electrical cable connector assembly comprising:
a housing defining a receiving room;
a spacer structure essentially located in a mid-level of said receiving room to separate said receiving room into two spaced mating region in a vertical direction while each of said mating region communicates with an exterior in a front-to-back direction perpendicular to said vertical direction;
a pair of cables each sandwiched between the housing and the spacer in said vertical direction; and
a metallic holder defining a confining structure essentially circumferentially fully and tightly enclosing a rear portion of the housing including said spacer so as to efficiently clamping the pair of cables at least in said vertical direction.

14. The electrical cable connector assembly as claimed in claim 13, wherein said metallic holder further includes a forwardly extending shielding portion protective covering a latch mechanism assembled upon the housing, which is used to latch a complementary connector mated mating the mating region.

15. The electrical cable connector assembly as claimed in claim 13, wherein said spacer is directly confronts the metallic holder in said front-to-back direction.

16. The electrical cable connector assembly as claimed in claim 15, wherein said metallic holder is directly fastened to the spacer.