Electrical connector

Abstract

An electrical connector includes two terminal seats, a conductive connecting member disposed between the two terminal seats, a plurality of ground terminals and a plurality of differential terminal pairs disposed in the terminal seats, the differential terminal pairs being separated by the ground terminals. The conductive connecting member contacts the ground terminals to eliminate potential difference between the ground terminals and push the resonance point of crosstalk to high frequency. The differential terminal pairs include a first differential terminal pair disposed in front of the ground terminals and a second differential terminal pair disposed behind the ground terminals, and the adjacent differential terminal pairs are staggered in the terminal seats, so as to effectively reduce crosstalk interference between terminals and improve signal transmission stability of the electrical connector.

Description

Technical Field

[0001] This utility model relates to an electrical connector, and more particularly to an electrical connector that can improve crosstalk interference. Background Technology

[0002] High-speed connectors are used for high-speed data transmission and are commonly found in large communication equipment, high-end storage devices, ultra-high-performance servers, industrial computers, and other similar applications. During signal transmission, crosstalk interference can easily occur between the terminals, affecting the signal transmission performance of high-speed connectors. Therefore, it is necessary to provide an electrical connector that can mitigate crosstalk interference. Summary of the Invention

[0003] The purpose of this invention is to provide a connector, and more particularly to an electrical connector that can improve crosstalk interference.

[0004] To overcome the shortcomings of existing technologies, this utility model discloses an electrical connector comprising an insulating body. A terminal group is installed within the insulating body. The terminal group has two interlocking terminal blocks and a plurality of ground terminals and a plurality of differential terminal pairs disposed in the two terminal blocks. Adjacent differential terminal pairs are separated by the ground terminals. The plurality of differential terminal pairs have a plurality of first differential terminal pairs located inside the ground terminals and a plurality of second differential terminal pairs located outside the ground terminals. The first differential terminal pairs, second differential terminal pairs, and ground terminals are aligned front to back within the two terminal blocks with consistent front-to-back spacing. A conductive connector is clamped and fixed between the two terminal blocks and electrically connected to the ground terminals.

[0005] Furthermore, the first differential terminal pair and the second differential terminal pair each have six pairs, and a ground terminal, a pair of the first differential terminal pairs, a ground terminal and a pair of the second differential terminal pairs are sequentially distributed from right to left in the terminal block.

[0006] Furthermore, one of the terminal blocks is provided with a plurality of inwardly recessed grounding terminal slots, a plurality of first grooves, and a plurality of second grooves, wherein the first grooves and the second grooves are connected to the grounding terminal slots. The other terminal block is provided with a plurality of inwardly recessed grounding terminal slots, a plurality of third grooves, and a plurality of fourth grooves, wherein the third grooves and the fourth grooves are connected to the grounding terminal slots. The grounding terminal slots in the two terminal blocks are connected to each other and aligned front to back. The first grooves and the third grooves are connected to each other and aligned front to back in the two terminal blocks respectively. The second grooves and the fourth grooves are connected to each other and aligned front to back in the two terminal blocks respectively. The grounding terminal is disposed at the bottom of the grounding terminal slot. The first differential terminal pair is disposed at the bottom of the first groove and the bottom of the third groove. The second differential terminal pair is disposed at the bottom of the second groove and the bottom of the fourth groove.

[0007] Furthermore, the recessed depth of the grounding terminal groove in both terminal seats is equal. In one terminal seat, the recessed depth of the first groove is greater than the recessed depth of the grounding terminal groove, and the recessed depth of the second groove is less than the recessed depth of the grounding terminal groove. In the other terminal seat, the recessed depth of the third groove is less than the recessed depth of the grounding terminal groove, and the recessed depth of the fourth groove is greater than the recessed depth of the grounding terminal groove. The total recessed depth of the first groove and the third groove in both terminal seats, as well as the total recessed depth of the second groove and the fourth groove in both terminal seats, are all consistent with the total recessed depth of the grounding terminal groove.

[0008] Furthermore, the conductive connector has a main body and a plurality of connecting blocks disposed on the main body, the connecting blocks being electrically connected to the grounding terminal, the main body being housed between the two terminal seats, and the connecting blocks being housed in the grounding terminal slot.

[0009] Furthermore, each of the grounding terminals, each of the first differential terminal pairs, and each of the second differential terminal pairs has a fixing portion enclosed in the terminal block, an extension arm extending upward from the upper end of the fixing portion, a contact end bent inward from the end of the extension arm, and a welding portion extending outward from the lower end of the fixing portion. The fixing portion of the grounding terminal passes through the grounding terminal groove, the fixing portion of the first differential terminal pair passes through the first groove and the third groove, and the fixing portion of the second differential terminal pair passes through the second groove and the fourth groove. The fixing portion and the extension arm of the first differential terminal pair are closer to the front side of the terminal block than the fixing portion and the extension arm of the grounding terminal, and the fixing portion and the extension arm of the second differential terminal pair are closer to the rear side of the terminal block than the fixing portion and the extension arm of the grounding terminal. The contact ends are aligned with each other, and the welding portions are flush with each other.

[0010] Furthermore, the conductive connector includes a main body and a plurality of connecting blocks disposed on the main body, wherein each connecting block has at least one protrusion that abuts against the fixing portion of the grounding terminal.

[0011] Furthermore, at the junction of the two terminal blocks, there is at least one outwardly protruding portion and at least one inwardly recessed portion, wherein the protruding portion on one terminal block and the recessed portion on the other terminal block are interlocked with each other.

[0012] This utility model also discloses an electrical connector comprising an insulating body. Two terminal blocks are mounted in the insulating body. A plurality of grounding terminals are disposed on the two terminal blocks. A plurality of first differential terminal pairs are disposed on the two terminal blocks. A plurality of second differential terminal pairs are disposed on the two terminal blocks. In the same terminal block, the first differential terminal pairs and the second differential terminal pairs are separated by the grounding terminals. In the two terminal blocks, the grounding terminals, the first differential terminal pairs, and the second differential terminal pairs are aligned front to back with each other. A conductive connector is fixed between the two terminal blocks and electrically connected to the grounding terminals. The first differential terminal pairs are located in front of the grounding terminals, and the second differential terminal pairs are located behind the grounding terminals. The front-to-back spacing of the first differential terminal pairs, the second differential terminal pairs, and the grounding terminals in the two terminal blocks is consistent.

[0013] In summary, the electrical connector of this invention is electrically connected to all the grounding terminals through the conductive connector to eliminate the potential difference between the grounding terminals and push the resonant point of crosstalk to a higher frequency. Furthermore, by placing the first differential terminal pair in front of the grounding terminal and the second differential terminal pair behind the grounding terminal, adjacent differential terminal pairs are staggered in the terminal block, thereby effectively reducing crosstalk interference between terminals and improving the signal transmission stability of the electrical connector. Attached Figure Description

[0014] Figure 1 This is a perspective view of the electrical connector of this utility model.

[0015] Figure 2 This is an exploded view of the electrical connector of this utility model.

[0016] Figure 3 This is an exploded view of the terminal assembly of the electrical connector of this utility model.

[0017] Figure 4 This is a partial perspective view of the terminal group of the electrical connector of this utility model.

[0018] Figure 5 The terminal group of the electrical connector of this utility model is along Figure 1 A three-dimensional cross-sectional view of line II.

[0019] Figure 6 The terminal group of the electrical connector of this utility model is along Figure 2 A cross-sectional view of line II-II.

[0020] Figure 7 The terminal group of the electrical connector of this utility model is along Figure 2 Another cross-sectional view of line II-II.

[0021] Figure 8 This is a partial view of the grounding terminal, the first differential signal terminal, and the second differential signal terminal of the electrical connector of this utility model. Detailed Implementation

[0022] To illustrate the technical content, structural features, objectives, and technical effects of this utility model in detail, the following embodiments are provided in conjunction with the accompanying drawings.

[0023] Please see Figure 1 and Figure 2 This utility model discloses an electrical connector 100, which includes a housing 1, an insulating body 2 housed inside the housing 1, and a terminal group 3 installed inside the insulating body 2.

[0024] Please see Figures 3 to 5The terminal group 3 includes two symmetrically arranged and spliced ​​elongated terminal blocks 31, a conductive connector 32 disposed between the two terminal blocks 31, and a plurality of grounding terminals 33 and a plurality of differential terminal pairs 34 fixed in the two terminal blocks 31 by an embedded injection method. For ease of subsequent explanation, the term "front side" in this specification is defined as... Figures 1 to 5 In the 3D diagram, the direction is towards the lower left, while the so-called "rear side" is defined as... Figures 1 to 5 The direction is towards the upper right in the 3D view. Adjacent differential terminal pairs 34 are separated by a ground terminal 33, and each differential terminal pair 34 further includes a first differential terminal pair 34a disposed in front of the ground terminal 33 and a second differential terminal pair 34b disposed behind the ground terminal 33. By placing the ground terminal 33 between adjacent differential terminal pairs 34 and offsetting adjacent differential terminal pairs 34 alternately towards the front and rear, crosstalk between signals is reduced. There are six pairs each of the first differential terminal pairs 34a and the second differential terminal pairs 34b. In the two terminal blocks 31, from right to left, a ground terminal 33, a pair of first differential terminal pairs 34a, a ground terminal 33, and a pair of second differential terminal pairs 34b are sequentially distributed, and the ground terminal 33, the first differential terminal pairs 34a, and the second differential terminal pairs 34b in the two terminal blocks 31 are aligned with each other in the front-rear direction.

[0025] Please see Figure 3 The conductive connector 32 is clamped and fixed between the two terminal blocks 31. The conductive connector 32 is made of conductive plastic and includes a long strip-shaped main body 321 and a plurality of columnar connecting blocks 322 extending outward from the main body 321. The connecting blocks 322 are continuously arranged on the main body 321 at fixed intervals and abut against the grounding terminal 33 to achieve a grounding effect. The first differential terminal pair 34a and the second differential terminal pair 34b are arranged in adjacent intervals between the two connecting blocks 322 and maintain a distance from the main body 321 to prevent short circuits caused by contact with the conductive connector 32.

[0026] Please see Figure 3 , Figure 6 and Figure 7The two terminal blocks 31 have a mating surface 310 at their joint. The terminal block 31 located on the front side of the terminal group 3 has a plurality of grounding terminal grooves 311, a plurality of first grooves 312, and a plurality of second grooves 313 recessed along the mating surface 310. The first grooves 312 and the second grooves 313 communicate with the grounding terminal grooves 311. The terminal block 31 located on the rear side of the terminal group 3 has a plurality of grounding terminal grooves 311, a plurality of third grooves 314, and a plurality of fourth grooves 315 recessed along the mating surface 310. The third grooves 314 and the fourth grooves 315 communicate with the grounding terminal grooves 311. The grounding terminal grooves 311 in the two terminal blocks 31 are interconnected and aligned front to back. The first grooves 312 and the third grooves 314 are interconnected and aligned front to back in the two terminal blocks 31 respectively. The second grooves 313 and the fourth grooves 315 are interconnected and aligned front to back in the two terminal blocks 31 respectively. Furthermore, the grounding terminal 33 is exposed at the bottom of the grounding terminal groove 311 of the two terminal seats 31. In the terminal seat 31 on the front side of the terminal group 3, the first differential terminal pair 34a is exposed at the bottom of the first groove 312, and the second differential terminal pair 34b is exposed at the bottom of the second groove 313. In the terminal seat 31 on the rear side of the terminal group 3, the first differential terminal pair 34a is disposed at the bottom of the third groove 314, and the second differential terminal pair 34b is disposed at the bottom of the fourth groove 315. The main body 321 is accommodated between the two terminal seats 31, and the connecting block 322 is accommodated in the grounding terminal groove 311 and is in electrical contact with the grounding terminal 33.

[0027] Please see Figures 5 to 7The grounding terminal groove 311 is recessed to the same depth along the mating surface 310 in both terminal seats 31. In the terminal seat 31 on the front side of the terminal group 3, the first groove 312 is recessed to a greater depth along the mating surface 310 than the grounding terminal groove 311, and the second groove 313 is recessed to a lesser depth along the mating surface 310 than the grounding terminal groove 311. In the terminal seat 31 on the rear side of the terminal group 3, the third groove 314 is recessed to a lesser depth along the mating surface 310 than the grounding terminal groove 311, and the fourth groove 315 is recessed to a greater depth than the grounding terminal groove 311, thus the first differential terminal pair 34a and the second differential terminal pair 34b are respectively disposed on the front and rear sides of the grounding terminal 33. Furthermore, the total recess depth of the first groove 312 and the third groove 314 in the two terminal seats 31, as well as the total recess depth of the second groove 313 and the fourth groove 315 in the two terminal seats 31, are all consistent with the total recess depth of the grounding terminal groove 311.

[0028] Furthermore, the distance between the two first differential terminal pairs 34a of the two terminal blocks 31 is D1, the distance between the two second differential terminal pairs 34b of the two terminal blocks 31 is D2, and the distance between the two ground terminals 33 of the two terminal blocks 31 is D3. Both distances D1 and D2 are equal to distance D3, ensuring that the front-to-back spacing of each differential terminal pair 34a, each second differential terminal pair 34b, and each ground terminal 33 is consistent within the two terminal blocks 31. Therefore, by creating a front-to-back height difference in the placement of the ground terminal 33, the first differential terminal pair 34a, and the second differential terminal pair 34b within the terminal blocks 31, crosstalk interference between the terminals is effectively reduced.

[0029] Please see Figure 2 , Figure 5 , Figure 6 and Figure 8Each of the grounding terminals 33, each of the first differential terminal pairs 34a and each of the second differential terminal pairs 34b has a fixing portion 370, an extension arm 371 and a soldering portion 373. The fixing portion 370 is enclosed in the terminal base 31. The extension arm 371 extends upward from the upper end of the fixing portion 370, and the end of the extension arm 371 is bent inward to form a contact end 372. The extension arm 371 extends into the insulating body 2 so that the contact end 372 makes electrical contact with a mating connector (not shown). The soldering portion 373 extends outward from the lower end of the fixing portion 370 to be soldered to a circuit board (not shown). The fixing portion 370 of the grounding terminal 33 passes through the grounding terminal groove 311, the fixing portion 370 of the first differential terminal pair 34a passes through the first groove 312 and the third groove 314, and the fixing portion 370 of the second differential terminal pair 34b passes through the second groove 313 and the fourth groove 315. The fixing portion 370 of the first differential terminal pair 34a is closer to the front side of the terminal base 31 than the fixing portion 370 of the grounding terminal 33, and the fixing portion 370 of the second differential terminal pair 34b is closer to the rear side of the terminal base 31 than the fixing portion 370 of the grounding terminal 33. The extension arm 371 of the first differential terminal pair 34a is closer to the front side of the terminal base 31 than the extension arm 371 of the grounding terminal 33, and the extension arm 371 of the second differential terminal pair 34b is closer to the rear side of the terminal base 31 than the extension arm 371 of the grounding terminal 33. The contact ends 372 of the grounding terminal 33, the first differential terminal pair 34a, and the second differential terminal pair 34b are aligned with each other to ensure the mating stability between the electrical connector 100 and the mating connector (not shown). The solder portions 373 of the grounding terminal 33, the first differential terminal pair 34a, and the second differential terminal pair 34b are flush with each other, which helps to improve the soldering yield.

[0030] Please see Figure 3 and Figure 5 To prevent gaps from forming between the grounding terminal 33 and the conductive connector 32 when the grounding terminal 33 is bent, at least one protrusion 323 is formed on the upper and lower surfaces of the connecting block 322 to abut against the fixing part 370 of the grounding terminal 33. The degree of protrusion of the protrusion 323 can be easily adjusted during production so that the conductive connector 32 can reliably contact and connect with the grounding terminal 33.

[0031] Please see Figure 4The two terminal blocks 31 extend outward along the mating surface 310 to form at least one protrusion 316 and recess inward to form at least one recess 317, wherein the protrusion 316 on one terminal block 31 and the recess 317 on the other terminal block 31 interlock with each other, making the connection between the two terminal blocks 31 more stable.

[0032] In summary, the electrical connector 100 of this invention is electrically connected to all the grounding terminals 33 through the conductive connector 32 to eliminate the potential difference between the grounding terminals 33 and push the resonant point of crosstalk to a higher frequency. Furthermore, by placing the first differential terminal pair 34a on the front side of the grounding terminal 33 and the second differential terminal pair 34b on the rear side of the grounding terminal 33, adjacent differential terminal pairs 34 are arranged alternately in the terminal block 31, thereby effectively reducing crosstalk interference between terminals and improving the signal transmission stability of the electrical connector 100.

Claims

1. An electrical connector, characterized in that, The device comprises: an insulating body; a terminal group installed in the insulating body, the terminal group having two interlocking terminal blocks and a plurality of grounding terminals and a plurality of differential terminal pairs disposed in the two terminal blocks, adjacent differential terminal pairs being separated by the grounding terminals, the plurality of differential terminal pairs having a plurality of first differential terminal pairs located inside the grounding terminals and a plurality of second differential terminal pairs located outside the grounding terminals, the first differential terminal pairs, the second differential terminal pairs and the grounding terminals being aligned front to back in the two terminal blocks with a uniform front-to-back spacing; and a conductive connector clamped and fixed between the two terminal blocks and electrically connected to the grounding terminals.

2. The electrical connector according to claim 1, characterized in that: The first differential terminal pair and the second differential terminal pair each have six pairs, and a ground terminal, a first differential terminal pair, a ground terminal and a second differential terminal pair are sequentially and spaced apart from right to left in the terminal block.

3. The electrical connector according to claim 1, characterized in that: One of the terminal blocks has several recessed grounding terminal slots, several first grooves, and several second grooves. The first grooves and second grooves are connected to the grounding terminal slots. Another terminal block has several recessed grounding terminal slots, several third grooves, and several fourth grooves. The third grooves and fourth grooves are connected to the grounding terminal slots. The grounding terminal slots in the two terminal blocks are connected to each other and aligned front to back. The first grooves and third grooves are connected to each other and aligned front to back in the two terminal blocks respectively. The second grooves and fourth grooves are connected to each other and aligned front to back in the two terminal blocks respectively. The grounding terminal is disposed at the bottom of the grounding terminal slot. The first differential terminal pair is disposed at the bottom of the first groove and the bottom of the third groove. The second differential terminal pair is disposed at the bottom of the second groove and the bottom of the fourth groove.

4. The electrical connector according to claim 3, characterized in that: The grounding terminal groove has the same recess depth in both terminal seats. In one terminal seat, the recess depth of the first groove is greater than the recess depth of the grounding terminal groove, and the recess depth of the second groove is less than the recess depth of the grounding terminal groove. In the other terminal seat, the recess depth of the third groove is less than the recess depth of the grounding terminal groove, and the recess depth of the fourth groove is greater than the recess depth of the grounding terminal groove. The total recess depth of the first groove and the third groove in both terminal seats, as well as the total recess depth of the second groove and the fourth groove in both terminal seats, are all consistent with the total recess depth of the grounding terminal groove.

5. The electrical connector according to claim 3, characterized in that: The conductive connector has a main body and a plurality of connecting blocks disposed on the main body. The connecting blocks are electrically connected to the grounding terminal. The main body is housed between two terminal blocks, and the connecting blocks are housed in the grounding terminal slot.

6. The electrical connector according to claim 3, characterized in that: Each of the grounding terminals, each of the first differential terminal pairs, and each of the second differential terminal pairs has a fixing portion enclosed in the terminal block, an extension arm extending upward from the upper end of the fixing portion, a contact end bent inward from the end of the extension arm, and a welding portion extending outward from the lower end of the fixing portion. The fixing portion of the grounding terminal passes through the grounding terminal groove, the fixing portion of the first differential terminal pair passes through the first groove and the third groove, and the fixing portion of the second differential terminal pair passes through the second groove and the fourth groove. The fixing portion and the extension arm of the first differential terminal pair are closer to the front side of the terminal block than the fixing portion and the extension arm of the grounding terminal, and the fixing portion and the extension arm of the second differential terminal pair are closer to the rear side of the terminal block than the fixing portion and the extension arm of the grounding terminal. The contact ends are aligned with each other, and the welding portions are flush with each other.

7. The electrical connector according to claim 6, characterized in that: The conductive connector has a main body and a plurality of connecting blocks disposed on the main body. Each connecting block has at least one protrusion that abuts against the fixing part of the grounding terminal.

8. The electrical connector according to claim 1, characterized in that: At the junction of the two terminal blocks, there is at least one outwardly protruding portion and at least one inwardly recessed portion, wherein the protruding portion on one terminal block and the recessed portion on the other terminal block are interlocked with each other.

9. An electrical connector, characterized in that, The device comprises: an insulating body; two terminal blocks installed within the insulating body; a plurality of grounding terminals disposed on the two terminal blocks; a plurality of first differential terminal pairs disposed on the two terminal blocks; a plurality of second differential terminal pairs disposed on the two terminal blocks, wherein the first differential terminal pairs and the second differential terminal pairs are separated by the grounding terminals within the same terminal block, and the grounding terminals, the first differential terminal pairs, and the second differential terminal pairs are aligned front to back within the two terminal blocks; and a conductive connector fixed between the two terminal blocks and electrically connected to the grounding terminals; wherein the first differential terminal pairs are located in front of the grounding terminals, the second differential terminal pairs are located behind the grounding terminals, and the front to back spacing of the first differential terminal pairs, the second differential terminal pairs, and the grounding terminals within the two terminal blocks is consistent.

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