FIELD OF THE INVENTION
The present invention generally relates to an electrical connector capable of high speed, and more particularly to an electrical connector with a mating port for different transporting interfaces.
DESCRIPTION OF RELATED ART
With the electric products turning slighter, thinner, shorter and smaller, the inner space of the electric product turns less and less. On the other hand, it is necessary to provide enough space to receive variety of electrical connectors for transporting signal of transport protocols. Usually, the different mating ports are arranged side by side or stacked one by one. However, it fails to decrease the inner space of the electric product.
In view of the foregoing, an electrical connector with a mating port for different transporting interfaces would be desirable.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide an electrical connector with a mating port for different transporting interfaces.
In order to achieve the object set forth, an electrical connector defines a first direction and second direction perpendicular to each other. The electrical connector comprises a housing and a plurality of terminals arranged in the housing in the second direction. The housing comprises a base portion and a first mating portion extending along the first direction. The mating portion defines opposite first mating face and second mating face. The contacts are divided into a first row and a second row. Each contact comprises a mating portion exposed on the mating portion and a tail protruding from the housing. Each row of the contacts comprises several high-speed signal groups. Each group comprises a pair of signal contacts and a ground contact. The contacting portion of each signal contact is located at the second mating face while the contacting portion of each ground contact is located at the first mating face. Three contacting portions of each high-speed signal group is shaped as a triangle from a view along the first direction.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of an electrical connector assembly of an embodiment in accordance with the present invention, wherein the first and second electrical connectors disconnect each other;
FIG. 2 is an exploded view of the first electrical connector shown in FIG. 1;
FIG. 3 is a front-to-back view of the first electrical connector shown in FIG. 2;
FIG. 4 is a partially enlarged view of the first electrical connector shown in FIG. 3;
FIG. 5 is a partly exploded view of the second electrical connector shown in FIG. 1;
FIG. 6 is a front-to-back view of the second connector shown in FIG. 5; and
FIG. 7 is the arrangement chart of the contacts of the first electrical.
DETAILED DESCRIPTION OF THE INVENTION
Reference will now be made in detail to the preferred embodiment of the present invention.
Referring to FIG. 1, an electrical connector assembly is provided for high-speed signal transported. The electrical connector assembly includes a first connector 100 and a second connector 200 mating with each other along a first direction (A-A, the mating direction) and respectively mounted onto two different PCBs (printed circuit board, not shown). The first electrical connector includes a first insulating housing 11, first contacts 12 arranged in a second direction (B-B) and a first shielding shell 13 made of metal. The second electrical connector includes a second insulating housing 21, second contacts 22 arranged in the second direction (B-B) and a second shielding shell 23 made of metal.
Referring to FIGS. 2 and 3, the first housing defines a base portion 111 and a mating portion 112 extending from the base portion along the first direction. The mating portion 112 includes a first mating portion 113 and a second mating portion 114 connected by a cross wall. The first mating portion 113 includes a first tongue 1131 and a second tongue 1132 parallel and opposite to each other. The two tongues 1131, 1132 are connected to each other by a side wall 15 at a first side while disconnected at an opposite side. The second mating portion 114 defines a mating space. The first contacts are arranged on the opposite inner faces of the first and second tongues. The first contacts comprise contacting sections 121 loaded on the first mating portion 113 and tails 123 mounted to the PCB. The first contacts assembled to the second mating portion 114 are pin-shaped and expose in the mating space to transport the power signal. The first mating portion 113 and the second mating portion 114 are surrounded by the first shell 13. A retaining element is attached to the first shell 13 and soldered to the PCB so as to increase the retaining force. The details on the arrangement of the contacts are illuminated as follows.
Combination with FIGS. 3 and 4, the opposite inner faces of first mating portion 113 are defined as a first mating face 151 and a second face 152. The first contacts 12 are divided into a first row 12a (or an upper row, tagged by odd numbers) and a second row 12b (or a lower row, tagged by even numbers). The contacting sections of the first row 12a are arranged on the first mating face 151 while the contacting portions of the second row 12b are arranged on the second mating face 152. The contacting sections of first and second rows of contacts are in alternant arrangement from a view along the second direction. The first contacts 12 comprise ten groups of high-speed signal contacts and several low-speed signal contacts. Each group comprises a pair of differential signal contacts (such as P2, P4) and a grounding contact (such as P3). The pair of differential signal contacts is mainly to transport high-speed data signal with a purpose on enhancing the transporting speed. According to FIG. 4, contacting sections 121 of differential signal contacts are located at the second mating face 152 and contacting sections 121 of the grounding contacts are located at the first mating face 151. The contacting portions of each group high-speed signal contacts (including two differential signal contacts and a grounding contact) form a triangle in a front-to-back view. The low-speed signal contact (such as p1, 5, 9, 13, 17, 21, 15, 29, 33, 37) are located at the first mating face 151 and are stagger with grounding contacts (such as p3, 7, 11, 15, 19, 23, 27, 31 ,35, 39) one by one. There are six groups to transport HDMI (High Definition Multimedia) signal and four groups to transport USB signal among the ten groups of high-speed signal contacts. The contacts p2-4 forms a TMDS-TX2 signal group. The contacts p6-8 forms a TMDS-TX signal group. The contacts p10-12 forms a TMDS-TX0 signal group. The contacts p14-16 forms a TMDS-TX-C signal group. Each signal group provides a transporting means. The contacts p18-20 forms a Host-USB signal group. The contacts p22-24 forms a Host-USB3.0-RX signal group. The contacts p26-28 forms a Host-USB3.0-TX signal group. The contacts 30-32 forms a USB2.0 signal group. The contacts p34-36 forms a USB3.0-RX signal group. The contact 38-40 forms a USB3.0-TX signal group. The low-speed signal contacts (p1, 5, 9, 13, 17, 21, 25, 29, 33, 37) arranged among the high-speed signal contacts comprises data contacts, detecting contacts, DC in contacts and audio contacts and so on. The contacts (p49-52), among other low-speed signal contacts (p41-56), are DC out contacts. The contacts could be added and arranged for multi functions.
The second mating portion 114 is assembled with several pin-shaped contacts (p57-60, shown in FIG. 7) to transport high-electrical-current signal.
The first mating portion is able to provide both HDMI-transmitting interface and USB-transmitting interface. At the same time, some other transmitting interfaces, such as Displayport, PCIe, are also available. By being compatible for multi transmitting interfaces, the first electrical is obviously able to lower the height of the whole electric system. What is more, every two signal pairs (especially high-speed ones) are spaced by a grounding contact. It is helpful to reduce the interference between signal pairs and improve the signal-transmitting quality.
Referring to FIGS. 5 and 6, the second insulating housing 200 of the second electrical connector 200 comprises a base portion 211 and a mating portion 212. The mating portion includes a first mating portion 213 and a second mating portion 214 extending along the first direction (A-A). The mating portion is shaped as a tongue and defines a first mating face 241 and a second mating face 242. The second contacts are arranged along the second direction (B-B). The contacts assembled on the first mating portion 213 comprises contacting portions 221 exposed at the first mating face 241 and tails 223 extending out of the second insulating housing 21. The contacting portions 221 are arranged in an upper row and a lower row. The contacting portions of the two rows are stagger with each other one by one from a view along a third direction perpendicular both the first and second directions. The contacts assembled on the second mating portion 214 are pipe-shaped and mated with the first pin-shaped contacts 12 to transmit power signal. The second shell surrounds the mating portion 212. Arrangement of the second contacts about each signal group isn't given necessary details for it is same as the first contacts.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrated only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Patent Grant
9281623
