Electrical connector

Abstract

The utility model discloses a kind of electric connectors, it includes insulating shell and multiple terminal module received in the insulating shell, the insulating shell includes the butt joint slot in front, the terminal module includes multiple ground terminal module and multiple pairs of signal terminal module, each pair of signal terminal module is arranged between a pair of ground terminal module, each signal terminal module includes first insulating body and the signal terminal of several signal terminal module held in the first insulating body, each ground terminal module includes second insulating body and the ground terminal held in the second insulating body, the ground terminal includes ground butt joint, ground mounting portion and the intermediate portion between ground butt joint and ground mounting portion, the ground terminal further includes the ground portion integrally formed with the intermediate portion, the ground portion transversely passes through and is contacted with the ground portion of another ground terminal module with the adjacent signal terminal module of it.

Description

[Technical Field]

[0001] This utility model relates to an electrical connector, and more particularly to an electrical connector with a common ground. [Background Technology]

[0002] U.S. Patent Application Publication No. US8651881B2 discloses an electrical connector comprising an insulating housing and a plurality of sheet-like terminal modules stacked laterally within the insulating housing. The plurality of terminal modules include a plurality of ground terminal modules and a plurality of pairs of signal terminal modules. The ground terminal modules and the plurality of pairs of signal terminal modules are spaced apart in the lateral direction. Different ground terminal modules are connected in series with grounding via intermediate pins or grounding plates. It is necessary to develop additional molds to produce intermediate pins or grounding plates before assembling and inserting each ground terminal.

[0003] Therefore, it is necessary to improve the aforementioned electrical connectors to address the aforementioned deficiencies in the prior art. [Utility Model Content]

[0004] The main objective of this invention is to provide an electrical connector that can improve crosstalk and resonance caused by high-frequency signal transmission.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: an electrical connector that can be mounted on a circuit board and can be inserted and mated with plug modules in the front-to-back direction. The electrical connector includes an insulating shell and a plurality of terminal modules housed in the insulating shell. The insulating shell includes a mating slot located at the front. The terminal modules include a plurality of pairs of signal terminal modules and a plurality of ground terminal modules arranged in pairs. The ground terminal modules and the plurality of signal terminal modules are alternately arranged in a transverse direction perpendicular to the front-to-back direction. Each signal terminal module includes a first insulating body and a plurality of signal terminals fixed in the first insulating body. Each ground terminal module includes a second insulating body and a ground terminal fixed in the second insulating body. The ground terminal includes a ground mating portion extending forward into the mating slot, a ground mounting portion mounted on the circuit board, and an intermediate portion located between the ground mating portion and the ground mounting portion. The ground terminal also includes a ground portion integrally formed with the intermediate portion. The ground portion transversely passes through a pair of adjacent signal terminal modules and contacts the ground portion of another ground terminal module.

[0006] Compared with existing technologies, the advantages of this utility model electrical connector are: A grounding portion is integrally formed on the grounding terminal and connected in series with the grounding portions of the adjacent grounding terminal module to form a common ground, thereby improving crosstalk and resonance caused by high-frequency transmission, without the need for additional parts and processes. This saves on mold and fixture costs and assembly costs during product development. [Attached Image Description]

[0007] Figure 1 This is a perspective view of an electrical connector conforming to this utility model.

[0008] Figure 2 yes Figure 1 A perspective view of the electrical connector from another angle.

[0009] Figure 3 yes Figure 2 The diagram shows a partially exploded view of the electrical connector.

[0010] Figure 4 yes Figure 3 An exploded view of the electrical connector from another perspective.

[0011] Figure 5 yes Figure 3 A perspective view of the two sets of terminal modules of the electrical connector shown.

[0012] Figure 6 yes Figure 5 A perspective view of the two sets of terminal modules shown from another angle.

[0013] Figure 7 yes Figure 5 A perspective view of the terminals in the two sets of terminal modules shown.

[0014] Figure 8 yes Figure 7 A perspective view of the grounding terminal in the two sets of terminal modules shown.

[0015] Figure 9 yes Figure 5 An exploded view of a set of terminal modules shown.

[0016] Figure 10 yes Figure 9 An exploded view of the terminal module shown from another perspective.

[0017] Figure 11 yes Figure 10 A perspective view of the conductive terminals of the terminal module shown.

[0018] Figure 12 yes Figure 11 A perspective view of the conductive terminals of the terminal module shown from another angle.

[0019] [Explanation of Key Component Symbols]

[0020] Electrical connector 100, grounding mating part 240

[0021] Insulating housing 10 Grounding mounting part 250

[0022] Terminal module 20, middle part 260

[0023] Main casing 110 First grounding connection part 241

[0024] Rear housing 120 First grounding mounting part 251

[0025] Upper docking slot 101 Second grounding docking part 242

[0026] Lower docking slot 102 Second mounting part 252

[0027] Terminal channel 1001 Third grounding connection part 243

[0028] Grounding terminal module 21 Third grounding mounting part 253

[0029] Signal terminal module 22, fourth grounding connection part 244

[0030] First insulating body 221 Fourth grounding mounting part 254

[0031] Signal terminal 223 Connector 261

[0032] First signal terminal 2231 Series section 262

[0033] Second signal terminal 2232 extension 263

[0034] Third signal terminal 2233 Grounding part 265

[0035] Fourth signal terminal 2234 convex portion 215

[0036] Dating part 231, opening 225

[0037] Mounting part 232 Contact part 2651

[0038] Transition section 233, gap 2652

[0039] Second insulating body 211 Guide part 2653

[0040] Grounding terminal 213 mating part 2654

Detailed Implementation Methods

[0041] like Figure 1-12 As shown, the electrical connector 100 conforming to this utility model can be mounted on a circuit board (not shown) and can be inserted and mated with a plug module (not shown) in the front-to-back direction. The electrical connector 100 includes an insulating housing 10 and a plurality of terminal modules 20 housed within the insulating housing 10.

[0042] The insulating housing 10 includes a main housing 110 and a rear housing 120. The main housing 110 and the rear housing 120 cooperate with each other to fix the plurality of terminal modules 40. The main housing 110 includes at least one mating slot located at the front. Specifically, the main housing 110 is provided with an upper mating slot 101 and a lower mating slot 102 spaced apart in the vertical direction. The upper mating slot 101 and the lower mating slot 102 are respectively used to receive the upper mating tongue and the lower mating tongue of the plug module. The upper and lower sides of the upper mating slot 101 and the lower mating slot 102 are provided with a plurality of terminal channels 1001 arranged in the horizontal direction.

[0043] The multi-terminal modules 20 are stacked in a transverse direction perpendicular to the front-to-back direction. Each terminal module 20 is sheet-shaped. Each terminal module 20 includes multiple ground terminal modules 21 and multiple pairs of signal terminal modules 22. The ground terminal modules 21 and signal terminal modules 22 are arranged in a ground, signal, signal, ground, signal, signal pattern.

[0044] Each of the signal terminal modules 22 includes a first insulating body 221 and a plurality of signal terminals 223 fixed in the first insulating body 221. The first insulating body 221 is integrally formed to fix the plurality of signal terminals 223. Each of the signal terminal modules 22 includes a first signal terminal 2231, a second signal terminal 2232, a third signal terminal 2233, and a fourth signal terminal 2234. Each of the signal terminals 223 includes a mating portion 231 extending forward from the first insulating body 221 and engaging with the mating tongue plate of the plug module, a mounting portion 232 extending downward from the first insulating body 221 and capable of being mounted on a circuit board, and a transition portion 233 located between the mating portion 231 and the mounting portion 232. The mating portion 231 of the first signal terminal 2231 is located on the upper side of the upper mating slot 101, the mating portion 231 of the second signal terminal 2232 is located on the lower side of the upper mating slot 101, the mating portion 231 of the third signal terminal 2233 is located on the upper side of the lower mating slot 102, and the mating portion 231 of the fourth signal terminal 2234 is located on the lower side of the lower mating slot 102.

[0045] Each grounding terminal module 21 includes a second insulating body 211 and a grounding terminal 213 fixed in the second insulating body 211. The second insulating body 211 is integrally formed to fix the grounding terminal 213. Each grounding terminal 213 includes a grounding mating portion 240 extending forward into a mating slot, a grounding mounting portion 250 mounted on a circuit board, and an intermediate portion 260 located between the grounding mating portion 240 and the grounding mounting portion 250. The grounding terminals 213 in one grounding terminal module 21 are formed by stamping from the same strip. The grounding terminal 213 includes a first grounding docking portion 241 located on the upper side of the upper docking slot 101 and a first grounding mounting portion 251 corresponding to the first grounding docking portion 241; a second grounding docking portion 242 located on the lower side of the upper docking slot 101 and a second grounding mounting portion 252 corresponding to the second grounding docking portion 242; a third grounding docking portion 243 located on the upper side of the lower docking slot 102 and a third grounding mounting portion 253 corresponding to the third grounding docking portion 243; and a fourth grounding docking portion 244 located on the lower side of the lower docking slot 102 and a fourth grounding mounting portion 254 corresponding to the fourth grounding docking portion 244. Each of the grounding docking portions 240 is aligned with the docking portion 231 of the corresponding signal terminal 223 in the lateral direction and is partially housed within the corresponding terminal channel 1001. The middle portion 260 of the grounding terminal 213 includes a connecting portion 261 connecting the corresponding grounding mating portion 240 and the grounding mounting portion 250, a plurality of series portions 262 connecting the connecting portions 261 together, and an extension portion 263 extending from the series portions 262. The width of each connecting portion 261 of the grounding terminal 213 is not less than the width of the transition portion 233 of the corresponding signal terminal 223, so as to shield the signal terminal 223 in the lateral direction. Alternatively, the middle portion 260 of the grounding terminal 213 on a grounding terminal module 21 can be a single integral metal plate.

[0046] Each grounding terminal 213 also includes a grounding portion 265 integrally formed with the intermediate portion 260. The grounding portion 265 extends laterally through a pair of adjacent signal terminal modules 22 and contacts the grounding portion 265 of another grounding terminal module 21. Through the grounding portion 265, each grounding terminal module 21 is mechanically and electrically connected to the next grounding terminal module 21, thereby connecting the grounding terminals 213 in the entire grounding terminal module 21 in series.

[0047] The middle portion 260 and the grounding mounting portion 250 of the grounding terminal 213 are located in a vertical plane perpendicular to the front-back direction and the lateral direction. The grounding portion 265 is integrally bent from the middle portion 260 of the grounding terminal 213. The plane containing the grounding portion 265 is perpendicular to the vertical plane. The grounding portion 265 is formed by bending from the extension portion 263. The second insulating body 211 has a protrusion 215 extending laterally at a position corresponding to the grounding portion 265. The pair of signal terminal modules 22 have openings 225 through which the protrusion 215 passes. The grounding portion 265 includes a contact portion 2651 extending from the protrusion 215 for contacting another grounding terminal module 21, and a notch 2652 opposite to the contact portion 2651. The contact portion 2651 includes guide portions 2653 located on both sides of the end and a mating portion 2654 located at the rear of the guide portion 2653. The size of the mating portion 2654 is larger than the size of the notch 2652, so as to facilitate an interference fit with the notch 2652 on another grounding terminal module 21. The protrusion 215 extends in the protruding direction and is flush with the first insulating body 221 of the more distant one of the pair of signal terminal modules 22. The grounding portion 265 passes between the transition portion 233 of the second signal terminal 2232 and the third signal terminal 2233.

[0048] The electrical connector 100 of this invention integrally extends a grounding portion 265 onto the grounding terminal 213 to connect in series with the grounding portions 265 in the adjacent grounding terminal module 21, forming a common ground to improve crosstalk and resonance caused by high-frequency transmission. No additional parts or processes are required. This saves on mold and fixture costs and assembly costs during product development.

[0049] The above description is only one embodiment of this utility model, and not all or the only embodiment. Any equivalent changes to the technical solution of this utility model made by those skilled in the art after reading this utility model specification are covered by the claims of this utility model.

Claims

1. An electrical connector, mountable on a circuit board and capable of being inserted into and mated with plug modules in a front-to-back direction, the electrical connector comprising an insulating housing and a plurality of terminal modules housed within the insulating housing, the insulating housing including a mating slot at the front, the terminal modules including a plurality of ground terminal modules and a plurality of pairs of signal terminal modules arranged in a transverse direction, each pair of signal terminal modules being disposed between a pair of ground terminal modules, each of the signal terminal modules including a first insulating body and a plurality of signal terminals fixed within the first insulating body, each of the ground terminal modules including a second insulating body and a ground terminal fixed within the second insulating body, the ground terminal including a ground mating portion extending forward into the mating slot, a ground mounting portion mounted on the circuit board, and an intermediate portion located between the ground mating portion and the ground mounting portion, characterized in that: The grounding terminal also includes a grounding portion integrally formed with the middle portion, which laterally passes through a pair of adjacent signal terminal modules and contacts the grounding portion of another grounding terminal module.

2. The electrical connector as described in claim 1, characterized in that: The middle part of the grounding terminal and the grounding mounting part are located in a vertical plane that is perpendicular to the front-back direction and the lateral direction, and the plane where the grounding part is located is perpendicular to the vertical plane.

3. The electrical connector as described in claim 2, characterized in that: The grounding part is integrally bent from the middle part of the grounding terminal.

4. The electrical connector as described in claim 3, characterized in that: The second insulating body has a protrusion extending laterally at a position corresponding to the grounding part, and the pair of signal terminal modules have openings through which the protrusion passes.

5. The electrical connector as described in claim 4, characterized in that: The grounding portion includes a contact portion extending from the protrusion for contacting another grounding terminal module, and a notch opposite to the contact portion.

6. The electrical connector as described in claim 5, characterized in that: The contact portion includes guide portions located on both sides of the end and a mating portion located at the rear of the guide portions. The size of the mating portion is larger than the size of the notch, so as to facilitate an interference fit with the notch on another grounding terminal module.

7. The electrical connector as claimed in claim 4, characterized in that: The protrusion extends in the protruding direction and is flush with the first insulating body of the more distant one of the pair of signal terminal modules.

8. The electrical connector as claimed in claim 1, characterized in that: The docking slot includes an upper docking slot and a lower docking slot spaced apart vertically. Each signal terminal module includes a first signal terminal, a second signal terminal, a third signal terminal, and a fourth signal terminal. Each signal terminal includes a docking portion extending forward from the first insulating body and cooperating with the docking plug module, a mounting portion extending downward from the first insulating body and mounted on the circuit board, and a transition portion connecting the docking portion and the mounting portion. The docking portion of the first signal terminal is located on the upper side of the upper docking slot, the docking portion of the second signal terminal is located on the lower side of the upper docking slot, the docking portion of the third signal terminal is located on the upper side of the lower docking slot, and the docking portion of the fourth signal terminal is located on the lower side of the lower docking slot. The grounding portion is located between the transition portions of the second and third signal terminals.

9. The electrical connector as claimed in claim 8, characterized in that: The grounding terminal includes a first grounding docking portion and a first grounding mounting portion corresponding to the first grounding docking portion located on the upper side of the upper docking slot, a second grounding docking portion and a second grounding mounting portion corresponding to the second grounding docking portion located on the lower side of the upper docking slot, a third grounding docking portion and a third grounding mounting portion corresponding to the third grounding docking portion located on the upper side of the lower docking slot, and a fourth grounding docking portion and a fourth grounding mounting portion corresponding to the fourth grounding docking portion located on the lower side of the lower docking slot. The middle part of the grounding terminal includes a connecting portion connecting the corresponding grounding docking portion and the grounding mounting portion, a plurality of series portions connecting the connecting portions together, and an extension portion extending from the series portions. The grounding portion is formed by bending from the extension portion.

10. The electrical connector as claimed in claim 9, characterized in that: The width of each connection portion of the grounding terminal is not less than the width of the transition portion of the corresponding signal terminal.

Images