TWI389402B - Electrical connector assembly and electrical receptacle connector and electrical plug connector thereof - Google Patents

Description

Electrical connector assembly and socket electrical connector and plug electrical connector

The present invention relates to an electrical connector assembly, and more particularly to an electrical connector assembly that increases signal transmission rate and its receptacle electrical connector and plug electrical connector.

The Universal Serial Bus (USB) interface is a standard input/output interface that has been widely used in the design of many electronic devices. In 1994, seven world-renowned computer and communication companies, including Intel, Compaq, Digital, IBM, Microsoft, NEC, and Northern Telecom, jointly established the USB Association (USB-IF) to initially establish a USB interface specification. So far, the USB Association has released versions 1.0, 1.1 and 2.0.

The aforementioned USB 1.0, 1.1, and 2.0 versions support the following three transmission rates: (1), low-speed mode transmission rate of 1.5 megabits per second, mostly for keyboards and mice; (2), full-speed mode transmission rate of 12 megabits (3), high-speed mode transmission rate is 480 megabits per second.

However, with the development of the electronics industry, the transmission rate of USB 2.0 can no longer meet the development requirements of some electronic industries. For example, in the case of transmitting audio or video, in order to ensure the quality of signal transmission, the transmission rate is often as high as 1G to 2G per Seconds (1G = 1000 megabits). Two other types of interfaces in the field of electrical connectors, such as PCI-E (transmission rate up to 2.5G per second) and SATA interface (transmission rate up to 1.5G to 3.0G per second), have significantly exceeded the USB speed. 2.0 interface.

However, PCI-E and SATA interfaces are far less than USB due to applications, and the two types The number of terminals of the interface is large and the volume is large, and it is difficult to adapt to the development trend of light, thin, short and small in the future electronic industry. Therefore, under the impetus of the USB Association and the manufacturers of major connectors, a new generation of USB high-speed interface has emerged. However, the existing internal connectors and combinations of the host can transmit the signal of the USB2.0 interface on the backplane of the chassis. The motherboard inside the host computer cannot transmit the high-speed signal received by the new-generation USB interface on the backplane to the motherboard. Therefore, the high-speed signal on the backplane cannot be transmitted to the motherboard, and the signal of the motherboard cannot be transmitted to the backplane at high speed.

Therefore, it is necessary to design a combination of electrical connectors that can be used to achieve high-speed signal transmission between the backplane and the motherboard.

It is an object of the present invention to provide an electrical connector assembly that can be used to achieve high speed signal transmission between a backplane and a motherboard and its receptacle electrical connector and plug electrical connector.

In order to achieve the above object, the electrical connector assembly of the present invention includes a socket electrical connector and a plug electrical connector that are paired with each other, wherein the receptacle electrical connector includes a socket insulating body and a plurality of first terminals held by the socket insulating body, wherein the socket The insulative housing is provided with a main body portion and an extension portion extending outward from the main body portion; the plug electrical connector includes a plug insulative housing and a second terminal received in the plug insulating body, wherein the first and second terminals are respectively provided a contact portion, a holding portion that is fixed to the insulating body, and a tail portion extending from the insulating body, wherein the first and second terminals each comprise two rows of terminal groups, and each row of terminal groups is provided with two pairs of differential signal terminals for transmitting signals. A grounding terminal is disposed between the two pairs of differential signal terminals, wherein a pair of differential signal terminals are located at an outermost side of the terminal group.

The socket electrical connector of the present invention comprises a socket insulation body and a plurality of conductive terminals fixed on the socket insulation body, wherein the socket insulation body has a receiving cavity formed therein; the conductive terminal is provided with a curved contact portion and a holding held by the socket insulation body The conductive terminals are respectively arranged in two rows of terminal groups on the upper and lower sides of the receiving cavity, and each row of terminal groups is provided with two pairs of differential signal terminals for transmitting signals, between the two pairs of differential signal terminals. A grounding terminal is disposed, wherein a pair of differential signal terminals are located at the outermost side of the terminal group; and the rear end of the socket insulating body is provided with a partition plate, and the partition plate is provided with a plurality of receiving slots for the conductive terminals to be placed.

The plug electrical connector includes a plug insulating body and a plurality of conductive terminals fixed to the plug insulating body, wherein the plug insulating body is provided with a base portion and an extending portion extending outward from the base portion, and the plug insulating body is provided with a plurality of corresponding receiving The conductive terminal is provided with a contact portion received in the channel, and the conductive terminal is disposed in two rows of terminal groups respectively arranged on two sides of the base portion, and each row of the terminal group is provided with a signal for transmitting signals. Two pairs of differential signal terminals, a grounding terminal is disposed between the two pairs of differential signal terminals, wherein a pair of differential signal terminals are located at an outermost side of the terminal group, and an outer side of the plug insulating body protrudes outward to form a latch with the mating connector. The latching portion, the tail portion of the conductive terminal extending from the plug insulating body is bent upward or downward to be at different heights.

Compared with the prior art, the electrical connector assembly of the present invention and the socket electrical connector and the plug electrical connector realize high-speed signal transmission between the backplane and the mainboard.

Referring to the first to fourth figures, the electrical connector assembly of the present invention comprises a socket electrical connector 100 and a plug electrical connector 200, wherein the socket is electrically connected The device 100 includes a socket insulative housing 10, a plurality of first terminals 12 held in the socket insulative housing 10, a partition 13 assembled to the rear of the socket insulative housing 10, and a cable electrically connected to the first terminal 12. And an overcoat (not shown) formed on the first terminal 12 and the electrical connection of the cable to protect the aforementioned components. Wherein, the covering body may be an outer mold integrally formed or assembled outside the electrical joint, or may include two layers of an inner mold and an outer mold, or other covering forms. The socket insulative housing 10 includes a main body portion 102 and an expansion portion 104 extending rearward from the rear end of the main body portion 102 and extending outwardly. The upper and lower walls of the main body portion 102 are provided with a rearwardly extending receiving cavity 1020. In the first embodiment of the present invention, the receiving cavity 1020 is substantially n-shaped, and the downwardly recessed portion forms guiding grooves 1023 on both sides. The receiving chamber 1020 is respectively connected with the upper and lower walls of the main body portion 102 to form a platform portion 1021. The platform portion 1021 is provided with a plurality of receiving passages 1025 arranged in parallel, and the plurality of receiving slots 1026 corresponding to the receiving passages 1025 are from front to back. Through the socket insulation body 10. The expansion portion 104 is recessed from the rear to the front to form a fitting groove 1041. The connecting portion of the receiving cavity 1020 and the two side walls of the socket insulating body 10 protrudes inward to form a blocking portion 1028.

Referring to the third and fourth figures, the first terminal 12 is divided into two rows of terminal groups arranged in the upper and lower rows, and the first row of the upper row and the first terminal of the lower row are in a mirror image relationship and the arrangement order is completely opposite. Each of the terminal sets includes nine first terminals 12 that are identical in structure and arranged in parallel. Each of the first terminals 12 includes a curved portion disposed at a free end thereof for receiving in a corresponding receiving passage 1025 of the socket insulating body 10. a contact portion 121, a flat first tail portion 124 disposed at the other free end, and connecting the first contact portion 121 and the first tail portion The first holding portion 123 of the first holding portion 123 is symmetrically disposed with a plurality of ribs 1231 on opposite sides of the first holding portion 123. The first contact portion 121 of the first row of the first terminal 12 extends obliquely forward and downward from the front end of the first holding portion 123, and then extends obliquely forward and upward, and finally extends horizontally forward to form the first tongue portion 1211, and is electrically connected to the plug. When the connector 200 is docked, the first contact portion 121 thus designed is more elastic. In other embodiments, the first terminal 12 can also be provided in other configurations.

Referring to the fourth figure, the first row of the first terminals 12 are sequentially labeled 12a to 12i from right to left, and include two pairs of first differential signal terminals 12a, 12b, 12d, 12e, two first ground terminals 12c, 12f (GND), positive and negative first signal terminals 12g, 12h (D+, D-) and first power terminal 12i. The pair of first differential signal terminals 12a and 12b of the two pairs of first differential signal terminals respectively receive positive and negative receiving high-speed signal terminals, and the other pair of first differential signal terminals 12d and 12e respectively transmit high-speed signals for positive and negative terminals. a first ground terminal 12c is disposed between the first differential signal terminal for receiving the signal and the first differential signal terminal for outputting the high speed signal, to reduce the first differential signal terminal generated when transmitting the signal Crosstalk. The other first ground terminal 12f is located between the first differential signal terminal for outputting the high speed signal and the first signal terminal to reduce mutual interference when the signal is transmitted. The first power terminal 12i is adjacent to and located outside the negative first signal terminal 12h.

The partition plate 13 is substantially vertically disposed in a flat shape and has the same size as the fitting groove 1041 of the socket insulating body 10 and includes a rectangular base portion 131 and a plurality of ribs 132 extending upward and downward from the base portion 131, respectively, adjacent to each other. The ribs 132 are spaced apart to form a receiving groove for receiving the tail portion 124 of the first terminal 12 133.

The first terminal 12 is inserted into the socket insulative housing 10 from the rear to the front. The first contact portion 121 is located in the receiving passage 1025 and partially protrudes from the platform portion 1021. The first tongue of the front end of the first contact portion 121 is assembled. The portion 1211 is located in the receiving groove 1026, and the upper surface of the first tongue portion 1211 abuts against the top surface 1027 of the receiving groove 1026 to prevent the front end of the first contact portion 121 from being ejected. The first holding portion 123 of the first terminal 12 is fixed to the inside of the socket insulating body 10 by the ribs 1231 on both sides thereof. The first tail portion 124 of the first terminal 12 extends rearward beyond the rear surface of the socket insulating body 10, and the partition 13 The first tail portion 124 of the first terminal 12 is placed on the receiving groove 133 of the partition plate 13 and extends rearward, and the cable (not shown) is welded to the fitting groove 1041 of the socket insulating body 10. The first tail portion 124 of the first terminal 12 is overmolded with an outer mold (not shown) outside the electrical connection after the assembly is completed.

Referring to the first to second figures, and in conjunction with the fifth to sixth figures, the plug electrical connector 200 can be mated with the receptacle electrical connector 100. In the first embodiment of the present invention, the receiving cavity 1020 at the front end of the socket electrical connector 100 is substantially n-shaped, so that both sides of the plug electrical connector 200 respectively extend downward to form a guiding portion 2011, the guiding portion The 2011 is matched with the guiding groove 1023 on both sides of the receiving cavity 1020. The plug electrical connector 200 includes a plug insulative housing 20 and a plurality of second terminals 21 assembled in the plug insulative housing 20, wherein the plug insulative housing 20 further includes a base portion 201 and an extension portion 203 extending outwardly of the base portion 201 and extending outwardly. A plurality of channels 2012 are arranged side by side on the base portion 201. The channels 2012 extend forwardly and extend through the extending portion 203 to form a through slot 2013. Further, the guiding portion of the plug electrical connector 200 A buckle portion 2015 that protrudes outward is formed on the outer side of 2011.

The second terminal 21 of the plug electrical connector 200 also has two rows of terminal groups arranged in the upper and lower rows, and the second row of the upper row and the second row of the lower row are in a mirror image relationship and the order of arrangement is completely opposite. Each terminal set includes nine second terminals 21 of identical structure and arranged in parallel, each second terminal 21 including a second contact disposed at a free end thereof for receiving in a corresponding channel 2012 of the plug insulating body 20. a second portion 214 disposed at the other free end and a second holding portion 213 connecting the second contact portion 211 and the second tail portion 214, wherein the opposite sides of the second holding portion 213 are symmetrically disposed with a plurality of barbs 2131 . The second contact portion 211 of the second row 21 of the upper row extends from the front end of the second holding portion 213 in the mating direction, and the front end of the second contact portion 211 is bent downward to form the second tongue portion 2110. The second tail portions 214 of the second terminals 21 in the same row are respectively bent upward or downward to be at different heights while extending outward.

The upper row of second terminals 21 are sequentially labeled 21a to 21i from right to left, and include two pairs of second differential signal terminals 21a, 21b, 21d, 21e, two second ground terminals 21c, 21f (GND), positive and negative. The second signal terminals 21g, 21h (D+, D-) and the second power terminal 21i. The pair of second differential signal terminals 21a and 21b of the two pairs of second differential signal terminals respectively receive positive and negative receiving high-speed signal terminals, and the other pair of second differential signal terminals 21d and 21e respectively transmit high-speed signals for positive and negative terminals. a second ground terminal 21c is disposed between the second differential signal terminal for receiving the signal and the second differential signal terminal for outputting the high speed signal, to reduce the second differential signal terminal generated when transmitting the signal Crosstalk. The other second ground terminal 12f is located at a second differential signal end for outputting a high speed signal The sub- and second signal terminals are used to reduce mutual interference when the signal is transmitted. The second power terminal 12i is adjacent to and located outside the negative second signal terminal 12h. The second grounding terminals 21c, 21f of the upper row and the second tail portion 214 of the second power terminal 21i of the upper row are bent downward by a certain height, and the second tail portions 214 of the remaining second terminals 21 of the upper row are bent upward by a certain height to be staggered from each other. arrangement.

During assembly, the second terminal 21 is inserted into the plug insulating body 20 from the front to the rear, and the second contact portion 211 is located in the channel 2012 and the front end is buried by the plug insulating body 20 to prevent the front end of the second contact portion 211 from being ejected. The second holding portion 213 of the second terminal 21 is fixed in the through slot 2013 of the extending portion 203 of the plug insulating body 20 by the spurs 2131 on both sides thereof, and the second tail portion 214 of the second terminal 21 extends forward beyond the plug insulation. The front surface of the body 20 and the second tail portion 214 are soldered to a printed circuit board (not shown) to form an electrical connection.

Referring to the first to second and seventh to ninth embodiments, when the plug electrical connector 200 of the present invention is inserted into the receptacle electrical connector 100 from the receiving cavity 1020, the plug electrical connector 200 is guided. The portion 2011 slides along the guiding slot 1023 of the receptacle electrical connector 100, the second terminal 21 of the plug electrical connector 200 contacts the corresponding first terminal 12 of the receptacle electrical connector 100, and the latching portion of the plug electrical connector 200 is 2015 The plug electrical connector 200 is latched over the receptacle electrical connector 100 by sliding over the blocking portion 1028 of the receptacle electrical connector 100, whereby the stability of the plug electrical connector 200 within the receptacle electrical connector 100 is improved. The terminals labeled 12a to 12i in the first terminal 12 of the receptacle electrical connector 100 are respectively in contact with the terminals labeled 21a to 21i in the second terminal 21 of the plug electrical connector 200, the first terminal 12 and the second terminal Among the two pairs of first and second differential signal terminals respectively provided in the terminals 21, one pair is used for transmitting high-speed signals, and the other pair is for receiving high-speed signals. In this manner, the plug electrical connector 200 soldered to the backplane receives the high speed signal on the chassis, and the receptacle electrical connector 100 mated with the plug electrical connector 200 further transmits the high speed signal to the other end of the cable connected to the other end. On the socket electrical connector 100, the other socket electrical connector 100 further transmits the high speed signal to the other plug electrical connector 200 that is docked thereto, and the other plug electrical connector 200 transmits the high speed signal to the interior of the host. The motherboard completes the high-speed signal reception process, and the high-speed signal is output from the motherboard inside the host to the backplane of the chassis.

Referring to FIG. 10, which is a second embodiment of the present invention, the embodiment discloses a socket electrical connector 100' and a plug electrical connector 200' that is opposite to the receptacle electrical connector 100'. The socket electrical connector 100' is substantially the same as the socket electrical connector 100 of the first embodiment. The arrangement and structure of the first terminal 12' are also the same as the first terminal 12, except that the socket is electrically connected. The receiving cavity 1020' disposed at the front end of the device 100' is substantially L-shaped, and only one side thereof is provided with a guiding groove 1023', and the plug electrical connector 200' also has only a guide on the side corresponding to the socket electrical connector 100'. Lead (not shown).

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be covered by the following patent application.

100, 100'‧‧‧ socket electrical connector

10‧‧‧Socket insulation body

102‧‧‧ Main body

1020, 1020'‧‧‧ containment chamber

1021‧‧‧ Platform Department

1023, 1023'‧‧‧ guiding slot

1025‧‧‧ Containment passage

1026‧‧‧ Reception trough

1027‧‧‧ top surface

1028‧‧‧Block

104‧‧‧Extension

1041‧‧‧With slot

12, 12', 12a, 12b, 12c, 12d, 12e, 12f, 12g, 12h, 12i‧‧‧ first terminal

121‧‧‧First contact

1211‧‧‧ first tongue

123‧‧‧First Holding Department

1231‧‧‧Spurs

124‧‧‧First tail

13‧‧‧Baffle

131‧‧‧ base

132‧‧‧ ribs

133‧‧‧ accommodating slots

200, 200'‧‧‧ plug electrical connector

20‧‧‧plug insulator body

201‧‧‧Base Department

2011‧‧‧Guidance

2012‧‧‧Channel

2013‧‧‧through slot

2015‧‧‧Snap Department

203‧‧‧Extension

211‧‧‧Second contact

21, 21a, 21b, 21c, 21d, 21e, 21f, 21g, 21h, 21i‧‧‧ second terminal

2110‧‧‧Second tongue

213‧‧‧Second Holding Department

2131‧‧‧ barbed

214‧‧‧ second tail

The first figure is a schematic view of the electrical connector assembly socket electrical connector of the present invention when the connector electrical connector is not docked.

The second figure is a view of another perspective view of the receptacle electrical connector and the plug electrical connector shown in the first figure.

The third figure is an exploded perspective view of the socket electrical connector of the present invention.

The fourth figure is a schematic diagram of the interface of the socket electrical connector of the present invention.

Figure 5 is a perspective assembled view of the plug electrical connector of the present invention.

Figure 6 is an exploded perspective view of the plug electrical connector shown in Figure 5.

The seventh drawing is a cross-sectional view taken along line VII-VII of the first figure.

The eighth figure is an assembled view of the plug electrical connector of the present invention inserted into the electrical connector of the socket.

The ninth drawing is a cross-sectional view taken along line IX-IX of the eighth drawing.

The tenth figure is a schematic view of another embodiment of the present invention.

100‧‧‧Socket electrical connector

102‧‧‧ Main body

1023‧‧‧ guiding slot

1028‧‧‧Block

200‧‧‧ plug electrical connector

2015‧‧‧Snap Department

Claims (17)

An electrical connector assembly includes: a socket electrical connector, comprising a socket insulation body and a plurality of first terminals fixed on the socket insulation body, wherein the socket insulation body is provided with a main body portion and an extension portion extending outward from the main body portion The plug electrical connector is paired with the socket electrical connector, and includes a plug insulating body and a second terminal received in the plug insulating body, wherein the first and second terminals are respectively provided with a contact portion and are held by the insulating body The holding portion and the tail portion extending out of the insulating body; wherein the first and second terminals each comprise two rows of terminal groups, each row of terminal groups comprising two pairs of differential signal terminals and power terminals for transmitting signals, the two pairs of differentials A grounding terminal is disposed between the signal terminals, wherein the power terminal is located at the outermost side of the terminal group, and one pair of the two pairs of differential signal terminals respectively receives the high-speed signal for the positive and negative terminals, and the other pair transmits the high-speed signal for the positive and negative terminals respectively. The electrical connector assembly of claim 1, wherein the terminals of the two rows of terminal blocks of the first and second terminals are arranged in the reverse order. The electrical connector assembly of claim 1, wherein a pair of ground terminals are disposed on each of a pair of the two pairs of differential signal terminals at an intermediate position. The electrical connector assembly of claim 3, wherein each of the rows of terminal groups further includes a pair of positive and negative signal terminals, the pair of positive and negative signal terminals and a pair of differential signal terminals located at an intermediate position Ground terminal is provided. The electrical connector assembly of claim 1, wherein the front end of the socket insulating body is provided with a receiving cavity for receiving the plug electrical connector, the receiving A blocking portion is disposed in the cavity, and the outer side of the plug electrical connector protrudes outward to form a latching portion. When the plug electrical connector is mated with the socket electrical connector, the latching portion is locked with the blocking portion. The electrical connector assembly of claim 1, wherein a portion of the plug electrical connector in which the tail of the second terminal of the same row extends from the plug insulating body is bent upward or downward to be at different heights. . The electrical connector assembly of claim 5, wherein the receiving cavity of the socket insulating body is provided with at least one guiding groove for guiding the plug electrical connector to be inserted. The electrical connector assembly of claim 7, wherein the plug electrical connector is provided with at least one guide that slides along a guide slot of the receptacle electrical connector. A socket electrical connector, comprising: a socket insulation body; a plurality of conductive terminals fixed to the socket insulation body and comprising a curved contact portion and a holding portion held by the socket insulation body; and a partition plate disposed on the socket insulation body a rear end, and a plurality of receiving slots for the conductive terminals; wherein the conductive terminals are arranged in two rows of terminal groups, each row of terminal groups comprising two pairs of differential signal terminals and power terminals for transmitting signals, the two pairs A grounding terminal is disposed between the differential signal terminals, wherein the power terminal is located at the outermost side of the terminal group, and one of the two pairs of differential signal terminals respectively receives the high-speed signal for the positive and negative terminals, and the other pair transmits the high-speed signal for the positive and negative terminals respectively. The socket electrical connector of claim 9, wherein the terminals of the two rows of terminal groups are arranged in the reverse order. The socket electrical connector of claim 10, wherein the two A ground terminal is disposed on each of a pair of opposite sides of the differential signal terminal at an intermediate position. The socket electrical connector of claim 11, wherein each of the rows of terminal groups further includes a pair of positive and negative signal terminals, the pair of positive and negative signal terminals and a pair of differential signal terminals located at an intermediate position Ground terminal is provided. The socket electrical connector of claim 9, wherein the socket insulative housing is provided with a receiving cavity, and the receiving cavity is provided with at least one guiding slot for guiding the insertion of the mating connector, wherein the receiving cavity is There is a blocking portion that is locked with the docking connector. A plug electrical connector includes: a plug insulating body including a base portion and an extending portion extending outward from the base portion, the plug insulating body further provided with a plurality of channels; and a plurality of conductive terminals fixed to the plug insulating book a contact portion received in the channel of the plug insulating body is disposed in the body; wherein the conductive terminals are disposed in two rows of terminal groups respectively arranged on two sides of the base portion, and each row of terminal groups is provided with two signals for transmitting signals For the differential signal terminal, a grounding terminal is disposed between the two pairs of differential signal terminals, wherein a pair of differential signal terminals are located at an outermost side of the terminal group, and an outer side of the plug insulating body protrudes outward to form a latch with the mating connector. The latching portion, the tail portion of the conductive terminal extending from the plug insulating body is bent upward or downward to be at different heights. The plug electrical connector of claim 14, wherein the terminals of the two rows of terminal sets are arranged in reverse order. The plug electrical connector of claim 15, wherein a pair of two sides of the two pairs of differential signal terminals are respectively provided with a ground on both sides Terminal. The plug electrical connector of claim 16, wherein the conductive terminal further comprises a pair of positive and negative signal terminals, wherein the pair of positive and negative signal terminals are disposed between a pair of differential signal terminals located at an intermediate position; Ground terminal.