TW201616748A - RJ45 receptacle connector - Google Patents

Abstract

A RJ45 receptacle connector includes an insulative housing and a contact module mounted to the insulative housing. The insulative housing includes a mating port for insertion of a RJ45 plug connector. The contact module includes a set of mating contacts extending in the mating port, a set of mounting contacts mounted to an exterior printed circuit board, a plurality of filtering module connecting the mating contacts with the mounting contacts, and an insulative carrier retaining the mating contacts and the mounting contacts. Each filtering module includes an insulative carrier and a plurality of magnetic coils received in the insulative carrier. The magnetic coils have a first coil end and a second coil end. The first end is connected to the mating contact and the second end is connected to the mounting contact.

Description

RJ45 socket connector

The present invention relates to an RJ45 socket connector, and more particularly to a terminal structure for an RJ45 socket connector for transmitting high speed signals.

The transmission speed of Ethernet is gradually expanded from the initial 10 Mbps to 100 Mbps, 1 Gbps, and 10 Gbps. The price of Ethernet is also rapidly declining according to Moore's Law and economies of scale. At the same time, as users rapidly expand to hundreds of millions, the value of the Internet is becoming more and more incalculable. Nowadays, Ethernet has become the dominant network technology in the local area network (LAN), and with the emergence of the Gebie Ethernet network, Ethernet has begun to make great strides toward the metropolitan area network (MAN).

The transmission speed of the next generation of Ethernet will reach 40Gbps. The high-speed transmission of the network signal, the traditional RJ45 socket connector can not meet the demand, due to the increase of transmission speed, the greater the electrical length of the RJ45 socket connector The greater the loss interference, the transmission of the traditional RJ45 socket connector can not meet the test specifications.

For prior art, please refer to the Republic of China patent No. TWM373032 published on January 21, 2010, which discloses a conventional RJ45 socket connector with a mating terminal and an RJ45 plug connector contact point to a pin terminal and an external circuit board connection point. The electrical length is very long, so the loss is large and cannot meet the specifications of the 40 Gbps network transmission speed.

The technical problem to be solved by the present invention is to provide an RJ45 socket connector whose electrical length of the mating terminal and the RJ45 plug connector contact point to the pin terminal and the external circuit board connection point is short.

In order to solve the above technical problems, the technical means of the present invention is:

An RJ45 socket connector includes an insulative housing and a terminal module mounted on the insulative housing, the insulative housing is provided with a pair of sockets for inserting and mating the mating connector in the front-rear direction, and the terminal module includes a mating connection The mating terminal, the pin terminal for mounting to the external circuit board, and the filter component electrically connected between the mating terminal and the pin terminal, the filter component comprises an insulating carrier and a plurality of magnetic coils received in the insulating carrier The magnetic coil includes a first end wire head and a second end wire head disposed opposite to the first end wire end, wherein the butt terminal has a fixing portion installed at a bottom end of the front end of the insulating carrier, and extends downward from the fixing portion. a first connecting portion of the insulating carrier and a self-fixing portion extending forwardly to an overhanging portion of the pair of sockets, the pin terminal comprising a holding portion mounted at a bottom end of the rear end of the insulating carrier and extending downward from the holding portion beyond the insulating carrier a second connecting portion, the magnetic coil is located between the mating terminal and the pin terminal, and the first end wire is wound around the first connecting portion, the second wire end Wrapped around the second connection.

Compared with the prior art, the present invention has a structure in which the mating terminal and the pin terminal and the winding are connected, so that the electrical length of the mating terminal and the RJ45 plug connector contact point to the pin terminal and the external circuit board connection point is extremely short. It reduces transmission loss and meets the specifications for transmitting 40Gbps network transmission speed.

The first figure is a perspective view of the RJ45 socket connector of the present invention mounted on an external circuit board.

The second figure is a perspective view of the RJ45 socket connector shown in the first figure.

The third figure is an exploded view of the RJ45 socket connector shown in the second figure.

The fourth figure is another exploded view of the RJ45 socket connector shown in the third figure.

The fifth figure is an exploded view of the terminal module shown in the fourth figure.

The sixth figure is a perspective view of the docking terminal shown on the fifth circuit board mounted on the sub-board.

Figure 7 is a cross-sectional view of the RJ45 receptacle connector shown in Figure 1.

Referring to Figures 1 through 7, together, an RJ45 socket connector 100 conforming to the present invention can be mounted to an external circuit board 200 for transfer of RJ45 plug connectors (not shown) and external Network signal between boards 200. The RJ45 socket connector 100 of the present invention is used to transmit high speed network signals of 40 Gbps.

The RJ45 socket connector 100 includes an insulative housing 1 , a terminal module 2 mounted on the rear end of the insulative housing 1 , and a metal mask housing 3 covering the outside of the insulative housing 1 .

The insulative housing 1 is substantially square and includes a front wall 11, a rear wall 12, a top wall 13, a bottom wall 14, and two side walls 15. The insulative housing 1 is provided with a pair of sockets 10 for inserting and fitting the RJ45 plug connector (docking connector) in the front-rear direction. The pair of sockets 10 are formed to be recessed rearward from the front wall 11 and are surrounded by the front wall 11, the rear wall 12, the top wall 13, the bottom wall 14, and the two side walls 15. The middle portion of the front end of the top wall 13 is provided with a holding groove 131 penetrating through the top wall 13 and penetrating the pair of sockets 10, wherein the holding groove 131 is for snap-fitting with the buckle tail of the RJ45 plug connector. The rear wall 12 is provided with a horizontally arranged compartment slot 121 which is recessed forwardly from the rear wall 12 and a barrier arm 122 which is located between adjacent two compartment slots. The barrier groove 121 communicates with the pair of sockets 10 in the front-rear direction. The insulative housing 1 further includes a pair of guiding arms 123 extending rearward from the lower left corner and the lower right corner of the rear wall 12, and the guiding wall 123 is used for guiding the sliding installation of the terminal module 2, The lead arm 123 facilitates the mounting of the terminal module 2.

The terminal module 2 includes a row of mating terminals 21 for mating with the RJ45 plug connector, a mounting pin terminal 24 for mounting to the external circuit board 200, and an electrical connection between the mating terminal 21 and the pin terminal 24. The magnetic coil 22 (not shown) is connected to the insulating carrier 23 for fixing the mating terminal 21 and the pin terminal 24. The terminal module 2 further includes a sub-circuit board 25 mounted on the lower side of the insulating carrier 23 and connected to the mating terminal 21, the sub-board 25 being horizontally disposed and disposed adjacent to the upper side of the insulating carrier 23 and opposite to the upper side The lower side 252 is provided with a plurality of capacitors 253 electrically connected to the mating terminals 21 . The sub-circuit board 25 is provided with a plurality of soldering slots 254 extending through the front end of the sub-circuit board 25 in the up-and-down direction. The mating terminal 21 is inserted into one end and connected to the soldering slot 254, and the other end of the mating terminal 21 passes through the bay. The slot 121 extends into the pair of sockets 10.

The insulating carrier 23 has a front end wall 231, a rear end wall 233, and a plurality of intermediate walls 232 connected between the front end wall 231 and the rear end wall 233. The front end wall 231, the rear end wall 233 and the plurality of intermediate walls 232 define a downwardly opening receiving cavity 230. The mating terminal 21 is fixed to the front end wall 231, and the pin terminal 24 is fixed to the rear end wall 233. The magnetic coil 22 is housed in the housing cavity 230. The magnetic coil 22 is located between the mating terminal 21 and the pin terminal 24.

Referring to FIG. 6 , a row of docking terminals 21 includes first to eighth mating terminals 211 , 212 , 213 , 214 , 215 , 216 , 217 , 218 arranged in the lateral direction and mounted on the front end of the sub-board 25 . 1. The second butt terminal 211, 212, the third and sixth docking terminals 213, 216, the fourth and fifth docking terminals 214, 215, and the seventh and eighth docking terminals 217, 218 are respectively used for transmitting a pair of differential signals. Correct. The plurality of capacitors 253 disposed on the sub-board 25 include a capacitor electrically connected between the first butt terminal 211 and the second butt terminal 212, and electrically connected between the third butt terminal 213 and the fifth butt terminal 215. The capacitor is electrically connected between the capacitor between the fourth butt terminal 214 and the sixth butt terminal 216, and the capacitor electrically connected between the seventh butt terminal 217 and the eighth butt terminal 218. By means of the electrical test under the 40 Gbps network signal transmission speed, the capacitance compensation of the capacitors 253 is increased, and the test result which is not increased is shown to have a better NEXT characteristic after the increase.

The first to eighth docking terminals 211, 212, 213, 214, 215, 216, 217, 218 all extend upward from the sub-board 25 and extend forward, the first to eighth docking terminals 211, 212 The 213, 214, 215, 216, 217, and 218 respectively have first to eighth mounting portions (not labeled) mounted on the sub-board 25. The third and sixth docking terminals 213, 216 or the fourth and fifth docking terminals 214, 215 mounting portions are arranged offset from the other mounting portions in the insertion direction (since the inventive concept is similar, the illustration only illustrates the fourth and the fourth The five docking terminals 214, 215 are offset from the other terminals). The mounting portions of at least one of the third and sixth docking terminals 213, 216 or the fourth and fifth docking terminals 214, 215 are offset from the other mounting portions in the insertion direction, and are powered by a 40 Gbps network signal transmission speed. Sex test, the test results show that the crosstalk between channels is much lower than the good setting. The mounting portions of at least one of the third and sixth butting terminals 213, 216 or the fourth and fifth butting terminals 214, 215 are offset from the other mounting portions by at least 1.02 mm in the insertion direction, and the offset distance is based on 40 Gbps. The network transmits the signal request and tests the winner. The mounting portions of at least one of the third and sixth docking terminals 213, 216 or the fourth and fifth docking terminals 214, 215 are located on the rear side of the other mounting portions, so that the other docking terminals can be made further forward. Referring to the fifth figure, the first end of the front end wall 231 of the insulating carrier 23 is provided with first to eighth terminal fixing grooves 71, 72, 73, 74, 75, 76, 77, 78, third, At least one pair of terminal fixing grooves of the six-terminal fixing grooves 73, 76 or the fourth and fifth terminal fixing grooves 74, 75 extend rearward beyond the other terminal fixing grooves (since the concept of the invention is similar, the illustration only illustrates the fourth, the The five-terminal fixing grooves 74, 75 are staggered in other fixing grooves to match the arrangement of the aforementioned mating terminal 21. The first to eighth docking terminals 211, 212, 213, 214, 215, 216, 217, 218 are sequentially housed in the first to eighth terminal fixing grooves 71, 72, 73, 74, 75, 76, 77, 78. .

Referring to the sixth figure, each of the mating terminals 21 includes a first connecting portion 81 between the insulating carrier 23 and the sub-circuit board 25, a fixing portion 82 extending upward from the first connecting portion 81, and a top end of the self-fixing portion 82. a forward extending portion 83, a first bent portion 84 extending obliquely upward and forward from the front end of the extending portion 83, and a second bending portion extending downwardly and forwardly from the end of the first bent portion 84 Part 85. The first connecting portion 81 extends downward beyond the insulating carrier 23. Each of the fixing portions 82 interferes with the corresponding fixing grooves 71, 72, 73, 74, 75, 76, 77, 78 at the bottom of the end wall 231 before the insulating carrier 23. The extension portion 83 and the first bent portion 84 are suspended in the pair of sockets 10, and the second bent portion 85 is used to guide the insertion of the RJ45 plug connector.

Referring to FIG. 5 to FIG. 7 together, each of the pin terminals 24 has a holding portion 241 fixed to the rear end wall 233 of the insulating carrier 23, and extends forward from the bottom of the holding portion 241 and extends downward beyond the insulating carrier 23. The second connecting portion 242 of the rear end wall 233 and the mounting portion 243 extending rearward from the retaining portion 241 beyond the rear end wall 233. The mounting portion 243 extends rearward beyond the rear end wall 233 for surface soldering (SMT) to the external circuit board 200. The bottom of the rear end wall 233 is provided with a downwardly open terminal slot, and the terminal slot includes a vertically extending vertical slot 2331 and a horizontally extending horizontal slot 2332. The holding portion 241 is mounted in the vertical groove 2331, and the mounting portion 243 is at least partially received in the horizontal groove 2332. The horizontal groove 2332 penetrates the end wall 23 of the insulating carrier 23 in the front-rear direction, and is disposed to facilitate the operation of the enameled wire end. The holding portion 241 is provided with a spur 2412 protruding outward at an intermediate portion, an insertion tip 2411 located above the spur 2412, and a connecting recess 2413 located below the spur 2412. The width of the spur 2412 is greater than the width of the insertion tip 2411 and the attachment recess 2413. The mounting portion 243 includes a first horizontal portion 2431 adjacent to the holding portion 241 and a second horizontal portion 2432 extending obliquely downward from the first horizontal portion 2431 to extend horizontally rearward, as provided to facilitate the soldering of the mounting portion 243 to the external circuit board 200.

The magnetic coil 22 includes a transformer coil and a common mode suppressor coil, each coil including a magnetic core 221 and an enamel wire (not shown) wound on the magnetic core, the enamel wire having a first end wire connected to the mating terminal 21 A head (not shown) and a second end stub (not shown) connected to the pin terminal 24, the first end stub and the second end stub being the two free ends of the enameled wire. The first end wire is wound around the first wire portion 81 of the mating terminal 21 , and the second wire end is wound around the second wire portion 242 of the pin terminal 24 . By the structural arrangement of the mating terminal 21, the electrical distance between the contact point of the mating terminal 21 and the RJ45 plug connector to the connection position of the first end wire of the enamel wire and the first wire portion 81 of the mating terminal 21 is the shortest. By the structure of the pin terminal 24, the electrical distance between the connection point of the second connection portion 242 of the pin terminal 24 and the second end of the enameled wire to the connection point between the pin terminal 24 and the external circuit board 200 is the shortest. . By the simultaneous arrangement of the mating terminal 21 and the pin terminal 24, the electrical distance between the mating terminal 21 and the RJ45 plug connector contact point to the connection point of the pin terminal and the external circuit board 200 is the shortest.

The connection position between the first end line head and the first connection portion 81 and the connection position of the second end line head and the second connection portion 242 are not at the same level, but the first end line is The connection position of the first connection portion 81 and the connection position of the second end wire and the second connection portion 242 may be disposed on the same horizontal surface, for example, the contact point of the docking terminal 21 with the RJ45 plug connector may be further reduced to The electrical length of the mounting portion 243 of the pin terminal 24 is more favorable for network signal transmission of 40 Gbps. The second connecting portion 242 is provided with a notch 90 for facilitating the winding of the second end wire. The setting of the notch 90 facilitates the winding of the enameled wire end.

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.

1‧‧‧Insulating body

10‧‧‧ pairs of sockets

100‧‧‧RJ45 socket connector

11‧‧‧ front wall

12‧‧‧ Back wall

121‧‧‧Separate slot

122‧‧‧Stile arm

123‧‧‧guide arm

13‧‧‧ top wall

131‧‧‧ card slot

14‧‧‧ bottom wall

15‧‧‧ side wall

2‧‧‧Terminal module

200‧‧‧External circuit board

21‧‧‧Docking terminal

211‧‧‧First docking terminal

212‧‧‧Second docking terminal

213‧‧‧ Third docking terminal

214‧‧‧fourth docking terminal

215‧‧‧ fifth docking terminal

216‧‧‧6th docking terminal

217‧‧‧ seventh docking terminal

218‧‧‧8th docking terminal

22‧‧‧ Magnetic coil

221‧‧‧ magnetic core

23‧‧‧Insulation carrier

230‧‧‧ containment chamber

231‧‧‧ front wall

232‧‧‧ middle wall

233‧‧‧ rear end wall

2331‧‧‧ vertical slot

2332‧‧‧ horizontal trough

24‧‧‧ pin terminal

241‧‧‧ Holding Department

2411‧‧‧ insert tip

2412‧‧‧Spur

2413‧‧‧Connecting recess

242‧‧‧Second Connection Department

243‧‧‧Installation Department

2431‧‧‧First Level

2432‧‧‧Second horizontal department

25‧‧‧Sub Board

252‧‧‧ lower side

253‧‧‧ capacitor

254‧‧‧ soldering trough

3‧‧‧Metal mask housing

71‧‧‧First terminal fixing slot

72‧‧‧Second terminal fixing groove

73‧‧‧ Third terminal fixing groove

74‧‧‧4th terminal fixing groove

75‧‧‧5th terminal fixing groove

76‧‧‧6th terminal fixing groove

77‧‧‧ seventh terminal fixing groove

78‧‧‧eight terminal fixing slot

81‧‧‧First Connection Department

82‧‧‧ fixed department

83‧‧‧Extension

84‧‧‧First bend

85‧‧‧Second bend

90‧‧‧ gap

no

10‧‧‧ pairs of sockets

200‧‧‧External circuit board

22‧‧‧ Magnetic coil

221‧‧‧ magnetic core

231‧‧‧ front wall

233‧‧‧ rear end wall

2331‧‧‧ vertical slot

241‧‧‧ Holding Department

242‧‧‧Second Connection Department

243‧‧‧Installation Department

81‧‧‧First Connection Department

83‧‧‧Extension

84‧‧‧First bend

85‧‧‧Second bend

Claims (10)

An RJ45 socket connector comprising:
The insulative housing is provided with a pair of sockets for inserting and mating the mating connector in the front-rear direction; and the terminal module is mounted on the insulative housing, and the terminal module includes a mating terminal for mating with the mating connector a pin assembly for mounting to an external circuit board, and a filter assembly electrically connected between the mating terminal and the pin terminal, the filter component comprising an insulating carrier and a plurality of magnetic coils received in the insulating carrier, the magnetic coil The first end wire head and the second end wire head disposed opposite to the first end wire head;
The docking terminal has a fixing portion mounted on a bottom end of the front end of the insulating carrier, a first connecting portion extending downward from the fixing portion beyond the insulating carrier, and a front portion extending from the fixing portion to the overhanging portion of the socket, the connection The foot terminal includes a holding portion mounted on a bottom end of the rear end of the insulating carrier and a second connecting portion extending downward from the holding portion beyond the insulating carrier, the magnetic coil being located between the mating terminal and the pin terminal, the first end line The head is wound around the first connecting portion, and the second wire is wound around the second connecting portion. The RJ45 socket connector of claim 1, wherein the overhanging portion includes an extending portion extending forward from a top end of the fixing portion, and a first bent portion extending obliquely forward and upward from a front end of the extending portion And a second bent portion extending obliquely forward and downward from the first bent portion. The RJ45 socket connector of claim 1, wherein the pin terminal further comprises a mounting portion extending horizontally rearward from the retaining portion for surface soldering to the external circuit board. The RJ45 socket connector of claim 1, wherein the first end wire is wound at the first wire and the second wire is wound at the second wire at the same level. on. The RJ45 socket connector of claim 1, wherein the insulating carrier has a front end wall, a rear end wall, and a plurality of intermediate walls connected between the front end wall and the rear end wall, the front end wall and the rear end The end wall and the plurality of intermediate walls enclose a receiving cavity that is open downward. The mating terminal is fixed to the front end wall, the pin terminal is fixed to the rear end wall, and the magnetic coil is received in the receiving cavity. The RJ45 socket connector of claim 5, wherein the lower end of the front end wall of the insulating carrier is provided with a fixing groove that is open to the front, and the fixing portion is interference-held in the fixing groove. The RJ45 socket connector of claim 5, wherein the lower end of the end wall of the insulating carrier is provided with a downwardly extending holding groove, and the holding portion is interference-held in the holding groove. The RJ45 socket connector of claim 1, wherein the terminal module further has a sub-circuit board connected to the mating terminal, and the sub-circuit board is provided with a capacitor electrically connected to the mating terminal. The RJ45 socket connector of claim 8, wherein the sub-circuit board is horizontally disposed under the insulating carrier, the sub-circuit board is provided with a soldering slot, and the mating terminal is inserted and connected to the soldering groove. The RJ45 socket connector of claim 1, wherein the filter element comprises a transformer magnetic coil and a common mode suppressor magnetic coil, each magnetic coil comprising a magnetic core and an enameled wire wound on the magnetic core, The first end and the second end are the free ends of the enameled wire.