TWI568104B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a mask.

Electrical connectors having the ability to transmit high speed differential signals are typically used as interface connectors or internal connectors for digital devices or PCs. The connector includes a plurality of signal terminals and a plurality of ground terminals, wherein the signal terminals are paired for transmitting differential pair signals. Typically, the mating portions of the connectors are used to mating the corresponding mating connectors, and the terminal soldering portions of the connectors are for soldering to the circuit board, the soldering portions being arranged in rows for insertion into Inside the through hole of the board. At present, the demand for transmission of high-speed differential signals is increasing, and the demand for a low-profile connector having excellent high-frequency characteristics is also increasing.

Therefore, it is necessary to provide an electrical connector to overcome the above difficulties.

It is an object of the present invention to provide an electrical connector having a mask member disposed between opposite surfaces of the butt tongue of the electrical connector, and the shield member is electrically and mechanically coupled to the ground terminal.

In order to achieve the above object, the present invention is an electrical connector comprising an insulative housing, a terminal module and a cover member; the insulative housing is provided with a receiving cavity extending through the front and rear direction; the terminal module is assembled in the receiving cavity and the front end region thereof is forward Extending out the tongue formed by the insulating body The terminal module includes an upper row terminal module and a lower row terminal module assembled with each other, and the upper row terminal module and the lower row terminal module are respectively provided with an insulator and a conductive terminal, and the conductive terminal is exposed to the upper a contact portion of the upper and lower surfaces of the terminal module or the lower terminal module, the conductive terminal includes a differential pair terminal and a ground terminal; the mask member is mounted on the insulator of the upper row terminal module or the lower row terminal module and Corresponding to being located between the upper and lower surfaces of the upper row terminal module or the lower row terminal module; the grounding terminal is electrically and mechanically connected to the mask member.

To achieve the above object, the present invention is an electrical connector comprising a metal housing, a terminal module received in the metal housing, and a mask member; the metal housing is provided with a front opening docking chamber; and the terminal module is exposed The front end region of the mating cavity forms a butt tongue, and the terminal module includes an insulator and a conductive terminal mounted on the insulator, and the conductive terminal is provided with a contact portion on the opposite upper and lower surfaces of the mating tongue, and the conductive terminal includes a difference The terminal and the grounding terminal; the shielding member is installed in the insulator of the terminal module and located between the upper and lower surfaces of the terminal module, the shielding member is provided with the main body plate and the grounding strip extending from the main body plate; the grounding terminal of the terminal module Electrically and mechanically connected to the mask.

Compared with the prior art, the electrical connector of the present invention has the following beneficial effects: the grounding terminal is electrically and mechanically connected to the mask member, thereby achieving a reliable grounding effect.

100 100’‧‧‧ electrical connectors

10‧‧‧Insulated base

101‧‧‧Connected tongue

12‧‧‧Insulated body

120‧‧‧ containment chamber

121‧‧‧ lugs

122‧‧‧ Thin lugs

123‧‧‧Longitudinal opening

124‧‧‧ containment recess

125‧‧‧ front end

14‧‧‧ docking chamber

20‧‧‧Terminal module

201‧‧‧ front end

202‧‧‧ Back end

22‧‧‧Upper terminal module

24‧‧‧Bottom terminal module

254‧‧‧ lower surface

221‧‧‧ receiving holes

241‧‧‧ front end

242‧‧‧Locks

25‧‧‧Insulator

251‧‧‧ front end area

253‧‧‧ upper surface

252‧‧‧Upper groove

255‧‧‧ under the groove

256 ‧ ‧ rear notch

26‧‧‧Electrical terminals

26a‧‧‧Upper terminal

2601‧‧‧Differential pair terminal

2602‧‧‧ Grounding terminal

2602a, 2062b‧‧‧ Grounding terminal

2603‧‧‧Power terminal

261a, 261b‧‧‧Contacts

262a, 262b‧‧‧ solder feet

264‧‧‧Flexible arm

30, 30’‧‧‧ mask parts

31, 51‧‧‧ Grounding strip

311‧‧‧Free end

32‧‧‧ body board

33‧‧‧ solder feet

40‧‧‧Metal housing

401‧‧‧Front feet

402‧‧‧Back foot

50‧‧‧Printed circuit board

52‧‧‧ Notch

60‧‧‧Docking plug

1 is a perspective view showing the electrical connector of the first embodiment of the present invention separated from the circuit board; the second drawing is a front view of the electrical connector shown in the first figure; and the third drawing is a part of the electrical connector shown in the second figure. Enlarged view; the fourth figure is the part of the metal housing of the electrical connector separated from the insulating base as shown in the first figure The exploded view; the fifth figure is a partially exploded view of the insulating base of the electrical connector shown in the fourth figure; the sixth figure is the cross-sectional view of the insulating base shown in the fourth figure along the line VI-VI; the seventh figure is the fifth The figure shows a partially exploded view of the terminal block of the insulating base; the eighth figure is a cross-sectional view of the terminal module along the line VIII-VIII in the fifth figure; the ninth figure is the line of the upper row terminal module shown in the seventh figure. A cross-sectional view of the IX-IX direction; the tenth is a partial exploded view of the terminal module on the insulating base shown in the seventh figure; the eleventh is a perspective view of the upper terminal module shown in the seventh figure, wherein The upper part of the row terminal module is removed to clearly show the mask member; the twelfth figure is a perspective view of the upper row terminal module shown in the seventh figure, wherein the upper part of the upper row terminal module is removed The arrangement of the mask member and the conductive terminal is clearly shown; the thirteenth diagram is a perspective view of the electrical connector and the corresponding butt connector of the second embodiment of the present invention; and the fourteenth diagram is the thirteenth diagram A perspective view of the insulating base of the electrical connector; the fifteenth figure is the insulating base shown in FIG. Figure 16 is a perspective view of the cover member in the insulating base shown in Figure 14; Figure 17 is a cross-sectional view of the electrical connector of the first embodiment of the present invention; A cross-sectional view of a second embodiment electrical connector.

Referring to the first to fifth figures, the electrical connector 100 of the first embodiment of the present invention is mounted on a printed circuit board (PCB) 50, wherein the printed circuit board 50 is disposed at a lower portion of the electrical connector 100. The recess 52 thus forms a plate sink structure. The electrical connector 100 includes an insulative base 10, a conductive terminal 26 mounted to the insulative base 10, and a metal housing 40 that forms an abutment cavity 14 extending in the front-rear direction around the insulative base 10. The insulating base 10 is provided with a mating tongue 101 that extends forward into the docking cavity 14. The metal casing 40 is provided with a pair of front legs 401 and a pair of rear legs 402. The front legs 401 and the rear legs 402 are arranged in the front-rear direction and are adapted to be mounted on the printed circuit board 50. The insulating base 10 mainly includes an insulative housing 12 having a receiving cavity 120 and a terminal module 20 inserted into and held in the receiving cavity 120 of the insulative housing 12. The front portion of the insulative housing 12 is formed with a plurality of surrounding receiving cavities 120. The lug 121 of the conductive terminal 26 is connected. The outer portion of the front portion of the insulative housing 12 is surrounded by a thin lug 122. The metal housing 40 and the thin lug 122 are interference-fitted to form a good hold between the insulative housing and the metal housing.

Referring to FIGS. 5 to 6 , the terminal module 20 is inserted from the rear side of the insulative housing 12 and disposed in the receiving cavity 120 . The insulative housing 12 is provided with a longitudinal opening 123 and a receiving recess 124 that opens to the rear side and the bottom surface. The longitudinal opening 123 and the receiving recess 124 together form the receiving cavity 120. The terminal module 20 includes a front end portion 201 and a rear end portion 202. The front end portion 201 protrudes from the front end surface 125 of the insulative housing 12 through the longitudinal opening 123. Therefore, the front end portion 201 serves as a mating tongue portion 101 received in the mating cavity 14. . The rear end portion 202 is received in the receiving recess 124 when the terminal module 20 is inserted from the rear side of the insulative housing. The terminal module 20 further includes two rows of conductive terminals 26 arranged on opposite surfaces of the terminal module 20. The solder tails 262a, 262b of the conductive terminals are respectively arranged on the rear surface and the bottom surface of the insulating base 10. The mask 30 is embedded in the terminal module 20 and located between the upper and lower rows of conductive terminals 26.

Referring to FIG. 5 to FIG. 8 , the terminal module 20 includes an upper row of terminal modules 22 and a lower row of terminal modules 24 . The upper row of terminal modules 22 and the lower row of terminal modules 24 each include a conductive terminal. 26 insulator 25. The conductive terminal 26 can be divided into a differential pair terminal 2601, a ground terminal 2602, and a power terminal 2603. The ground terminal 2602 is longer than the differential pair terminal 2601 and the power terminal 2603 in the front-rear direction. The insulator 25 of the upper row of terminal modules 22 is provided with a complete front end region 251 for acting as a butt tongue 101. The conductive terminals 26 of the lower row terminal module 24 are integrally formed with the insulator 25 of the lower row terminal module 24 by an insert molding process. The contact portion 261b of the conductive terminal of the lower row terminal module 24 protrudes forwardly from the front end surface 241 of the insulator of the lower row terminal module 24. Referring to FIG. 9, the insulator 25 of the upper row of terminal modules 22 is further provided with a recess 255 on the lower surface 254 for receiving the contact portion 261b of the conductive terminal 26 of the lower row of terminal modules 24 and for receiving the lower row of terminal molds. The insulator of group 24 is followed by a notch 256. The insulator 25 of the lower row terminal module 24 is provided with a pair of latching members 242 on opposite sides thereof. When the lower row of terminal modules 24 are inserted into the rear recesses 256 from the up and down direction, the latching members 242 are latched to the upper row of terminal blocks. The insulator 25 of the group 22. The conductive terminals 26 of the upper and lower rows of terminal modules are aligned with each other in the up and down direction. In other embodiments, the structure of the upper and lower rows of terminal modules can be reversed. It can also be said that the insulator 25 of the lower row of terminal modules 24 is provided with a complete front end region for acting as the butting tongue portion 101 and the upper row of terminal modules 22 The contact portion 261a of the conductive terminal protrudes forwardly from the front end surface of the insulator of the upper row terminal module 22.

Referring to FIG. 7 and FIG. 9 to FIG. 12 , the mask member 30 is integrally formed with the upper row terminal module 22 by an insert molding process, wherein the two ground strips 31 extend upward and are exposed to The upper surface 253 of the upper row of terminal modules 22 is on. In other embodiments, the mask member may be integrally formed with the insulator of the lower row terminal module 24 by an insert molding process. The upper surface 253 of the upper row of terminal modules 22 is formed with a plurality of upper recesses 252 and the conductive terminals 26 of the upper row of terminal modules 22 are downwardly

Inserted and received in the corresponding upper groove 252, wherein the two ground terminals 2602a, 2602b are respectively pressed down on the corresponding grounding strip 31. In this embodiment, the mask member 30 is first mounted in the insulator of the upper row of terminal modules 22, and the upper row of terminals 26a is inserted into the insulator. Referring to the eleventh to twelfth drawings, the upper portion of the insulator 25 of the upper row terminal module 22 is cut away to better display the mask member 30. The mask member 30 is provided with the main body panel 32 and the self-maintenance panel 32. The front portion is torn and bent upward and extends forward to contact the grounding strip 31 of the ground terminal. The front free end 311 of each ground strip 31 is bent downwardly and substantially coplanar with the body panel 32, and the mask member 30 extends forward beyond the conductive terminals 26. Referring to the twelfth figure, the ground terminals 2602a, 2602b are connected to the ground strip 31 and the other ground terminals are not in contact with the mask 30. The ground strip 31 of the mask member is an insulator fixed to the terminal module, that is, the ground strip 31 is fixedly supported by the insulator 25 and cannot move in the vertical direction.

As described above, the terminal module 20 is assembled in the receiving cavity 120 of the insulative housing 12, and the lugs 121 are respectively crimped to the corresponding conductive terminals 26 to ensure that the conductive terminals 26 are firmly received in the corresponding upper and lower grooves 252, 255. . It can be seen that the two grounding terminals 2602a, 2602b abut against the corresponding grounding strips 31 through the corresponding lugs 121 to ensure a reliable grounding effect. Therefore, the front end portion of the terminal module 20 extends forwardly out of the insulative housing 12 and serves as the abutting tongue portion 101.

The insulative housing 12 and the terminal module 20 are further mounted within the metal housing 40 to form a complete electrical connector 100 that is adapted to be mounted on the printed circuit board 50.

The thirteenth through sixteenth embodiments disclose the electrical connector 100' of the second embodiment of the present invention. The structure of the electrical connector is substantially the same as that of the first embodiment, except that the grounding bar 51 and The structure of the ground terminal 2602 is different. The two ground terminals 2602 of the electrical connector 100' of the second embodiment of the present invention extend downwardly and directly with the mask member 30. The main body panel 32 is in contact. The two grounding strips 51 of the mask member 30' are bent from the front end of the main body panel 32 and are folded back. The grounding strip 51 is located at the front of the two grounding terminals in the front-rear direction so as to be mated with the mating plug 60. It can be seen that the ground strip 51 can also make the insulator 25 of the upper row of terminal modules 22 and the mask member 30' more secure. Each of the grounding terminals 2602 includes a resilient arm 264 that extends downwardly and abuts against the body panel 32 of the mask member 30', and the resilient arms 264 are aligned with the grounding strip 51 in the front-rear direction. The mask member 30 is provided with solder fillets 33 soldered to the printed circuit board 50.

Please refer to FIG. 17 and FIG. 18 for different connection manners of the grounding terminal and the mask member in the first and second embodiments of the present invention. In the first embodiment of the present invention, the grounding terminal of the mating plug 60 can directly contact the corresponding conductive terminal 26 of the electrical connector 100 to abut the corresponding grounding strip 31, and the docking plug of the second embodiment of the present invention is directly connected to the grounding terminal. Strip 51 does not need to be in direct contact with ground terminal 2602.

The embodiments described in the description of the invention are merely illustrative of the principles of the invention, It is to be understood that those skilled in the art can modify and change the above embodiments without departing from the spirit of the invention. The scope of the invention should be as set forth in the appended claims.

100‧‧‧Electrical connector

26‧‧‧Electrical terminals

30‧‧‧Mask pieces

Claims (8)

An electrical connector includes: an insulative housing having a receiving cavity extending through the front and rear direction; and a terminal module assembled in the receiving cavity and extending forwardly from the front end region to form an abutting tongue; the terminal module The upper terminal module and the lower terminal module are assembled with each other, and the upper terminal module and the lower terminal module are respectively provided with an insulator and a conductive terminal, and the conductive terminal is exposed to the upper terminal module or the lower a contact portion of the upper and lower surfaces of the terminal module, the conductive terminal includes a differential pair terminal and a ground terminal; and the mask member is formed by an insert molding process and the upper row terminal module or the lower row terminal module The insulators of the group are integrally formed and correspondingly located between the upper and lower surfaces of the upper row of terminal modules or the lower row of terminal modules; wherein the grounding terminals are electrically and mechanically connected to the masking members. The electrical connector of claim 1, wherein the insulative housing is provided with a lug that abuts a contact portion of the corresponding conductive terminal. The electrical connector of claim 1, wherein the upper row of terminal modules are provided with grooves on the upper and lower surfaces thereof and rear recesses at the rear end portions thereof; When the insulator is received in the rear recess of the upper terminal module, the contact portion of the upper terminal module is received in the recess of the upper surface, and the contact portion of the lower terminal module extends out of the front end surface of the lower terminal module and is received a groove on the lower surface. The electrical connector of any one of claims 1 to 3, wherein the mask member is provided with a main body plate and a grounding strip extending from the main body plate, the grounding strip being fixed to the insulator of the upper row of terminal modules And the front part of the main board is torn and extended upward, and the grounding terminal is pressed downward against the corresponding grounding strip. The electrical connector of claim 4, wherein the body plate of the mask member extends forward beyond the front end of the contact portion of the conductive terminal, the ground strip is bent upward and extends forward to contact the ground terminal, and is grounded. The free end of the strip is bent downward and coplanar with the body panel. The electrical connector according to any one of claims 1 to 3, wherein the mask member is provided with a main body plate and a grounding strip extending from the end of the main body plate and folded back, the grounding terminal is provided with a direction The elastic arms of the main body panel are extended and pressed downward, and the elastic arms and the grounding strip are aligned with each other in the front-rear direction. The electrical connector of claim 1, wherein the mask member is provided with a solder fillet suitable for soldering. An electrical connector includes: a metal housing, which is provided with a front opening opening; the terminal module is received in the metal housing and is provided with a front end region exposed to the mating cavity to form a butt tongue, the terminal mold The group includes an insulator and a conductive terminal mounted on the insulator, the conductive terminal is provided with a contact portion on the opposite upper and lower surfaces of the mating tongue portion, the conductive terminal comprises a differential pair terminal and a ground terminal; and the cover member is mounted on the terminal mold a body of the group is located between the upper and lower surfaces of the terminal module, the mask member is provided with a main body plate and a grounding strip extending from the main body plate; wherein the grounding terminal of the terminal module is electrically and mechanically connected to the shielding cover The main body plate of the mask member extends forward beyond the front end of the contact portion of the conductive terminal, the ground strip is bent upward and extends forward to contact the ground terminal, and the free end of the ground strip is bent downward and is shared with the main body plate surface.