Electrical connectors

Abstract

An electrical connector includes two terminal blocks, a plurality of signal terminals and a plurality of ground terminals disposed on the terminal blocks, shielding members disposed on symmetrical surfaces of the two terminal blocks, and a plurality of grounding members housed within the terminal blocks. The shielding members extend beyond the terminal blocks to shield against signal interference. Each grounding member has a contact plate that contacts the ground terminal, an extension arm extending from the contact plate, a supporting portion bent from the extension arm and abutting against the shielding plate, and a fixing plate and a fitting plate extending from the contact plate. The fixing plate and the fitting plate abut against the shielding members and engage with the terminal blocks, making the connection between the grounding members and the terminal blocks more stable and increasing the grounding area, thereby improving the 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 and grounding effect. 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 devices. During signal transmission, crosstalk interference can easily occur between the terminals, affecting the signal transmission performance of high-speed connectors. Common high-speed connectors on the market incorporate conductive plastic structures between the terminals to mitigate crosstalk. For example, Taiwan Utility Model Patent No. M560138 discloses a connector with a conductive plastic component, comprising an insulating body, a terminal block fixed to the insulating body, a plurality of signal terminals fixed to the terminal block, a plurality of grounding terminals fixed to the terminal block, and at least one conductive plastic component disposed on the terminal block, with a portion of the conductive plastic component exposed outside the terminal block and abutting against the grounding terminal. In this design, because the area shielded by the conductive plastic component is small, crosstalk interference still occurs between the terminals during signal transmission. Furthermore, the small contact area between the conductive plastic component and the grounding terminal hinders effective grounding.

[0003] Given the above shortcomings, it is necessary to provide an electrical connector that can improve crosstalk interference and grounding performance. Summary of the Invention

[0004] The purpose of this invention is to provide a connector, and more particularly to an electrical connector that can improve crosstalk interference and grounding performance.

[0005] 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 having two symmetrically arranged and interconnected terminal blocks. Each terminal block has a plurality of signal terminals and a plurality of ground terminals arranged side-by-side at intervals, with two adjacent signal terminals disposed between two ground terminals. A shielding member is disposed on the symmetrical surface of the two terminal blocks. The device includes several grounding components disposed in the terminal block and symmetrically arranged on both sides of the shielding component and aligned with the grounding terminal. Each grounding component includes a contact plate, a fixing plate extending perpendicularly from one side edge of the contact plate, an extension arm extending inwardly from the other side edge of the contact plate relative to the fixing plate, a supporting portion extending inwardly from the end of the extension arm, and a fitting plate extending perpendicularly from the side edge of the contact plate and located between the fixing plate and the extension arm. The contact plate contacts the grounding terminal, the supporting portion contacts the shielding component, and the fixing plate and the fitting plate are engaged in the terminal block and abut against the shielding component.

[0006] Furthermore, the inner surface of the terminal block is recessed inward to form a plurality of slots, the grounding terminal passes through the slots, the grounding terminal is exposed in the slots, the grounding member is received in the slots, and the contact plate is disposed on one side near the bottom of the slot and contacts the grounding terminal, the abutment is disposed on one side near the opening of the slot and contacts the grounding member, the fixing plate and the fitting plate abut against the inner sidewall of the slot and abut against the shielding member.

[0007] Furthermore, each of the card slots has a fitting groove on its side edge, the vertical height of the fitting groove is less than the vertical height of the card slot, and the fitting plate is fixed in the fitting groove.

[0008] Furthermore, each of the slots has a fitting groove on its side edge, and the fitting plate is fixed in the fitting groove. The fitting groove extends to the top and bottom respectively, penetrating the top and bottom walls of the terminal block. The inner wall surface of the fitting groove protrudes to form at least one pair of stops. The stops are symmetrically arranged in the upper and lower parts of the fitting groove. The upper and lower side edges of the fitting plate extend to form a connecting section. The connecting section extends further outward to form a protruding section. The protruding section protrudes from the top and bottom walls of the terminal block. A notch is formed at the junction of the fitting plate, the connecting section, and the protruding section. The notch and the stops interlock.

[0009] Furthermore, one of the notches of the grounding member is aligned with the fixing plate, and the other notch is aligned with the extension arm.

[0010] Furthermore, each of the signal terminals and each of the grounding terminals is provided with a fixing portion enclosed in the terminal block, a mating portion extending from the upper end of the fixing portion, and a welding portion extending from the lower end of the fixing portion. The shielding member extends out from the top and bottom ends of the terminal block, and the vertical length of the shielding member does not exceed the vertical length of the fixing portion. The contact plate is aligned with the fixing portion of the grounding terminal. The top end of the protrusion above the grounding member is aligned with the top surface of the shielding member, and the bottom end of the protrusion below the grounding member is aligned with the bottom surface of the shielding member.

[0011] Furthermore, the shielding member has at least one limiting hole, and the inner surface of the terminal block protrudes to form at least one limiting block, which is combined with the limiting hole.

[0012] This utility model also discloses an electrical connector, comprising an insulating body. A terminal group is installed in the insulating body, the terminal group having two symmetrically arranged and interconnected terminal blocks. Each terminal block has a plurality of signal terminals and a plurality of ground terminals spaced apart and arranged side-by-side. Two adjacent signal terminals are disposed between two ground terminals. The terminal block has a plurality of slots for aligning the ground terminals, and each slot has a fitting groove penetrating the top and bottom walls of the terminal block on its side edge. A shielding member is disposed on the symmetrical surface of the two terminal blocks. The device includes several grounding components housed in the slot. Each grounding component has a contact plate, a fixing plate extending perpendicularly from one side edge of the contact plate, an extension arm extending inwardly from the other side edge of the contact plate relative to the fixing plate, a supporting portion extending inwardly from the end of the extension arm, and a fitting plate extending perpendicularly from the side edge of the contact plate. The contact plate contacts the grounding terminal, the supporting portion contacts the shielding component, the fixing plate is engaged in the slot and abuts against the shielding component, the upper and lower side edges of the fitting plate extend to form a connecting section, the connecting section further extends outward to form a protruding section, the protruding section extends out of the top and bottom walls of the terminal block, the fitting plate is fixed in the fitting groove, the connecting section corresponds to the top and bottom walls of the terminal block, and the fitting plate, the connecting section, and the protruding section abut against the shielding component.

[0013] Furthermore, the inner wall of the fitting groove protrudes to form at least one pair of stops, the stops being symmetrically arranged in the upper and lower parts of the fitting groove, a notch being formed at the junction of the fitting plate, the connecting section and the protruding section, one of the notches of the grounding member aligns with the fixing plate, the other notch of the grounding member aligns with the extension arm, the notch and the stops are interlocked, and the grounding member abuts against the shielding member on the other side wall of the notch.

[0014] Furthermore, each of the signal terminals and each of the grounding terminals is provided with a fixing portion enclosed in the terminal block, a mating portion extending from the upper end of the fixing portion, and a welding portion extending from the lower end of the fixing portion. The shielding member extends out from the top and bottom ends of the terminal block, and the vertical length of the shielding member does not exceed the vertical length of the fixing portion. The contact plate is aligned with the fixing portion of the grounding terminal. The top end of the protrusion above the grounding member is aligned with the top surface of the shielding member, and the bottom end of the protrusion below the grounding member is aligned with the bottom surface of the shielding member.

[0015] In summary, the electrical connector of this invention has a shielding member on the symmetrical surface of the two terminal blocks. The shielding member extends from the top and bottom of the terminal blocks, thereby shielding signal interference between the terminal groups. The terminal blocks house a plurality of grounding members, which are symmetrically arranged on opposite sides of the shielding member and aligned with the grounding terminals. The contact plate of each grounding member abuts against the grounding terminal, and the supporting portion of each grounding member abuts against the shielding member, thereby obtaining a larger grounding area and improving the signal transmission stability of the electrical connector. Attached Figure Description

[0016] Figure 1 This is a perspective view of the electrical connector of this utility model.

[0017] Figure 2 This is an exploded view of the electrical connector of this utility model.

[0018] Figure 3 This is an exploded view of the first embodiment of the terminal group of the electrical connector of this utility model.

[0019] Figure 4 This is an exploded view of the first embodiment of the shielding and grounding components of the electrical connector of this utility model.

[0020] Figure 5 This is a partial exploded view of the first embodiment of the terminal group of the electrical connector of this utility model.

[0021] Figure 6 This is a perspective view of the first embodiment of the grounding component of the electrical connector of this utility model.

[0022] Figure 7 This is the first embodiment of the terminal group of the electrical connector of this utility model. Figure 1 A cross-sectional view of line II.

[0023] Figure 8 This is an exploded view of the second embodiment of the terminal group of the electrical connector of this utility model.

[0024] Figure 9 This is a partial exploded view of a second embodiment of the shielding and grounding components of the electrical connector of this utility model.

[0025] Figure 10 This is a partial exploded view of the second embodiment of the terminal group of the electrical connector of this utility model.

[0026] Figure 11 This is a perspective view of the second embodiment of the grounding component of the electrical connector of this utility model.

[0027] Figure 12 This is the second embodiment of the terminal group of the electrical connector of this utility model. Figure 1 A cross-sectional view of line II.

[0028] Figure 13 The terminal block edge of the electrical connector of this utility model Figure 8 A cross-sectional view of line II-II.

[0029] Figure 14 This is a partial top view of the signal terminal and grounding terminal of the electrical connector of this utility model. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] Please see Figure 3 and Figure 8The terminal group 3 includes two symmetrically arranged and interlocked elongated terminal blocks 31, a shielding member 32 disposed between the two terminal blocks 31, several grounding members 33 continuously disposed in the two terminal blocks 31 at fixed intervals, and several signal terminals 34 and several grounding terminals 35 embedded in and protruding from the terminal blocks 31. The signal terminals 34 and the grounding terminals 35 are spaced apart and arranged side by side. Two adjacent signal terminals 34 form a differential pair and are disposed between the two grounding terminals 35. The shielding member 32 and the grounding member 33 are formed by continuous stamping of metal sheets. The shielding member 32 is an elongated flat plate structure disposed on the symmetrical surface of the two terminal blocks 31. The upper and lower ends of the shielding member 32 extend out of the top and bottom ends of the terminal blocks 31, thereby blocking signal interference from the terminal group 3. One end of the grounding member 33 is in contact with the shielding member 32, and the other end of the grounding member 33 is in contact with the grounding terminal 35. In this way, the grounding member 33 can absorb and shield the high-frequency interference generated by the signal terminal 34 and improve the signal transmission stability of the electrical connector 100.

[0033] Please see Figures 3 to 6 The inner surface of the terminal block 31 is provided with a plurality of slots 311, and the grounding terminal 35 is exposed in the slots 311. The grounding member 33 is accommodated in the slots 311 to electrically connect the shielding member 32 and the grounding terminal 35. The grounding member 33 includes a contact plate 331, a fixing plate 332 extending perpendicularly from one side edge of the contact plate 331, an extension arm 333 extending inwardly from the other side edge of the contact plate 331 relative to the fixing plate 332, a supporting portion 334 formed by bending inwardly from the end of the extension arm 333, and a fitting plate 335 extending perpendicularly from the side edge of the contact plate 331. The contact plate 331 is disposed on one side near the bottom of the slot 311 and contacts the grounding terminal 35. The abutment part 334 is disposed on one side near the opening of the slot 311 and contacts the shielding member 32. The fixing plate 332 and the fitting plate 335 abut against the inner sidewall of the slot 311 and against the surface of the shielding member 32, thereby realizing the positioning and fixing of the grounding member 33 and the slot 311 and increasing the grounding area.

[0034] Please see Figure 5 and Figure 6 In a preferred embodiment shown in the figure, each of the slots 311 has a fitting groove 312 on its side edge. The vertical height of the fitting groove 312 is less than the vertical height of the slot 311 to fix the fitting plate 335.

[0035] Please see Figure 6 as well as Figures 8 to 13In the second embodiment of this utility model, the terminal block 31 is provided with a fitting groove 312' that penetrates the top and bottom walls of the terminal block 31. The bottom of the fitting groove 312' protrudes to form at least a pair of stops 314, which are symmetrically arranged on the upper and lower parts of the inner wall surface of the fitting groove 312' of the terminal block 31. The grounding member 33 of the second embodiment of the present invention is provided with a connecting section 336 and a protruding section 339. The upper and lower side edges of the fitting plate 335 of the grounding member 33 extend upward and downward respectively to form the connecting section 336. The connecting section 336 extends outward to form the protruding section 339. The protruding section 339 extends out of the terminal seat 31, so that the protruding section 339 protrudes from the top wall and bottom wall of the terminal seat 31. A notch 337 is formed at the junction of the fitting plate 335, the connecting section 336 and the protruding section 339. One of the notches 337 is aligned with the fixing plate 332, and the other notch 337 is aligned with the extension arm 333. By extending the connecting section 336 and the protruding section 339 on the mating plate 335, the assembly of the grounding member 33 becomes more convenient. Furthermore, the grounding member 33 abuts against the shielding member 32 on the other sidewall of the notch 337. Therefore, the connecting section 336 and the protruding section 339 increase the contact area between the shielding member 32 and the grounding member 33, effectively reducing signal interference. The interlocking of the notch 337 and the stop block 314 confines the sidewall of the mating plate 335 to the top and bottom walls of the terminal block 31, making the grounding member 33 more securely housed within the terminal block 31. The inner edge of the protruding section 339 abuts against the top and bottom walls of the terminal block 31.

[0036] Please see Figure 3 and Figure 4 The shielding member 32 has at least one limiting hole 321, and the inner surface of the terminal base 31 protrudes inward to form at least one limiting block 38. The limiting block 38 is combined with the limiting hole 321 to achieve positioning and fixing between the shielding member 32 and the terminal group 3. One side of the shielding member 32 is provided with an opening 322 for connecting with the strip (not shown) during the stamping process.

[0037] Please see Figure 2 and Figure 14Each of the signal terminals 34 and each of the ground terminals 35 has a fixing portion 370, a mating portion 371, and a soldering portion 372. The fixing portion 370 is enclosed in the terminal base 31. The mating portion 371 extends inward from the upper end of the fixing portion 370 and then extends outward, penetrating the interior of the insulating body 2 to electrically connect with a mating connector (not shown). The soldering portion 372 extends outward from the lower end of the fixing portion 370, protruding from the bottom end of the electrical connector 100 and soldered to a circuit board (not shown). Please refer to [further details to be added]. Figure 7 and Figure 12 The vertical length of the shielding member 32 is approximately the same as the vertical length of the fixing portion 370 of the signal terminal 34 and the ground terminal 35, so that the shielding member 32 can just cover the fixing portion 370 of the signal terminal 34 and the ground terminal 35 in the two terminal blocks 31, thereby blocking signal interference between the terminal groups 3. In specific implementation, the vertical length of the shielding member 32 is greater than the vertical length of the terminal block 31, but does not exceed the vertical length of the fixing portion 370 of the signal terminal 34 and the ground terminal 35. The top end of the shielding member 32 extends upward and beyond the top surface of the terminal block 31, and the bottom end of the shielding member 32 extends downward and beyond the bottom surface of the terminal block 31. Please refer to [further details omitted]. Figure 9 and Figure 12 In this embodiment, the top end of the protruding segment 339 extends upward to align with the top surface of the shielding member 32, and the bottom end of the protruding segment 339 extends downward to align with the bottom surface of the shielding member 32.

[0038] Please see Figure 6 , Figure 7 , Figure 11 as well as Figure 12 The contact plate 331 is configured to be flush with the fixing portion 370 of the grounding terminal 35. To prevent a gap from forming between the grounding terminal 35 and the grounding member 33 when the grounding terminal 35 is bent, the grounding member 33 further includes at least one protrusion 338 that protrudes outward from the outer surface of the contact plate 331 and abuts against the fixing portion 370 of the grounding terminal 35. The degree of protrusion of the protrusion 338 can be easily adjusted during production to ensure that the grounding member 33 is reliably in contact with the grounding terminal 35.

[0039] In summary, the electrical connector 100 of this invention has shielding members 32 on the symmetrical surfaces of the two terminal blocks 31, thereby shielding the signal interference of the terminal group 3. The terminal block 31 houses a plurality of grounding members 33, which are symmetrically arranged on opposite sides of the shielding member 32 and aligned with the grounding terminal 35. The contact plate 331 of the grounding member 33 abuts against the grounding terminal 35, the supporting portion 334 of the grounding member 33 abuts against the shielding member 32, the fixing plate 332 is engaged with the slot 311 and abuts against the shielding member 32, and the fitting plate 335 is engaged with the fitting groove 312 and abuts against the shielding member 32. This makes the connection between the grounding member 33 and the terminal block 31 more stable and increases the contact area between the grounding member 33, the grounding terminal 35, and the shielding member 32, thereby 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 symmetrically arranged and interconnected terminal blocks, each terminal block having a plurality of signal terminals and a plurality of ground terminals spaced apart and arranged side by side, with two adjacent signal terminals disposed between the two ground terminals; a shielding member disposed on the symmetrical surface of the two terminal blocks; and a plurality of grounding members disposed in the terminal blocks and symmetrically arranged on both sides of the shielding member and aligned with the ground terminals, each grounding member having a contact plate, a fixing plate extending perpendicularly bent from one side edge of the contact plate, an extension arm extending inwardly bent from the other side edge of the contact plate relative to the fixing plate, a supporting portion forming an inwardly bent portion from the end of the extension arm, and a fitting plate extending perpendicularly bent from the side edge of the contact plate and located between the fixing plate and the extension arm, wherein the contact plate contacts the ground terminals, the supporting portion contacts the shielding member, and the fixing plate and the fitting plate are engaged in the terminal blocks and abut against the shielding member.

2. The electrical connector according to claim 1, characterized in that: The inner surface of the terminal block is recessed inward to form a plurality of slots, the grounding terminal is exposed in the slots, the grounding member is received in the slots, and the contact plate is disposed on the side near the bottom of the slot and contacts the grounding terminal, the abutment is disposed on the side near the opening of the slot and contacts the grounding member, the fixing plate and the fitting plate abut against the inner sidewall of the slot and abut against the shielding member.

3. The electrical connector according to claim 2, characterized in that: Each of the card slots has a fitting groove on its side edge. The vertical height of the fitting groove is less than the vertical height of the card slot, and the fitting plate is fixed in the fitting groove.

4. The electrical connector according to claim 2, characterized in that: Each of the slots has a fitting groove on its side edge. The fitting plate is fixed in the fitting groove. The fitting groove extends to the top and bottom, respectively, through the top and bottom walls of the terminal block. The inner wall surface of the fitting groove protrudes to form at least one pair of stops. The stops are symmetrically arranged in the upper and lower parts of the fitting groove. The upper and lower side edges of the fitting plate extend to form a connecting section. The connecting section extends further outward to form a protruding section. The protruding section protrudes from the top and bottom walls of the terminal block. A notch is formed at the junction of the fitting plate, the connecting section and the protruding section. The notch and the stops interlock.

5. The electrical connector according to claim 4, characterized in that: One of the notches in the grounding member is aligned with the fixing plate, and the other notch is aligned with the extension arm.

6. The electrical connector according to claim 4, characterized in that: Each of the signal terminals and each of the ground terminals is provided with a fixing portion enclosed in the terminal block, a mating portion extending from the upper end of the fixing portion, and a welding portion extending from the lower end of the fixing portion. The shielding member extends out from the top and bottom ends of the terminal block. The vertical length of the shielding member does not exceed the vertical length of the fixing portion. The contact plate is aligned with the fixing portion of the ground terminal. The top end of the protrusion above the grounding member is aligned with the top surface of the shielding member, and the bottom end of the protrusion below the grounding member is aligned with the bottom surface of the shielding member.

7. The electrical connector according to claim 1, characterized in that: The shielding member has at least one limiting hole, and the inner surface of the terminal block protrudes to form at least one limiting block, which is combined with the limiting hole.

8. An electrical connector, characterized in that, The device comprises: an insulating body; a terminal assembly installed within the insulating body, the terminal assembly having two symmetrically arranged and interconnected terminal blocks, each terminal block having a plurality of signal terminals and a plurality of ground terminals spaced apart and arranged side by side, two adjacent signal terminals being disposed between two ground terminals, each terminal block having a plurality of slots for aligning the ground terminals, each slot having a fitting groove penetrating the top and bottom walls of the terminal block on its side edge; a shielding member disposed on the symmetrical surface of the two terminal blocks; and a plurality of grounding members housed in the slots, each grounding member having a contact plate, a fixing plate extending perpendicularly bent from one side edge of the contact plate, and a fixing plate extending from the contact plate relative to the grounding plate. The fixed plate has an extension arm that bends inward from the other side edge, a supporting portion that bends inward from the end of the extension arm, and a fitting plate that bends vertically from the side edge of the contact plate. The contact plate contacts the grounding terminal, the supporting portion contacts the shielding member, the fixed plate is snapped into the slot and abuts against the shielding member, the upper and lower side edges of the fitting plate extend to form a connecting section, the connecting section extends further outward to form a protruding section, the protruding section extends out of the top and bottom walls of the terminal block, the fitting plate is fixed in the fitting groove, the connecting section corresponds to the top and bottom walls of the terminal block, and the fitting plate, the connecting section, and the protruding section abut against the shielding member.

9. The electrical connector according to claim 8, characterized in that: The inner wall of the fitting groove protrudes to form at least one pair of stops, which are symmetrically arranged in the upper and lower parts of the fitting groove. A notch is formed at the junction of the fitting plate, the connecting section and the protruding section. One of the notches of the grounding member is aligned with the fixing plate, and the other notch of the grounding member is aligned with the extension arm. The notch and the stop are interlocked. The grounding member abuts against the shielding member on the other side wall of the notch.

10. The electrical connector according to claim 8, characterized in that: Each of the signal terminals and each of the ground terminals is provided with a fixing portion enclosed in the terminal block, a mating portion extending from the upper end of the fixing portion, and a welding portion extending from the lower end of the fixing portion. The shielding member extends out from the top and bottom ends of the terminal block. The vertical length of the shielding member does not exceed the vertical length of the fixing portion. The contact plate is aligned with the fixing portion of the ground terminal. The protruding section above the grounding member is aligned with the top surface of the shielding member, and the protruding section below the grounding member is aligned with the bottom surface of the shielding member.

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