Electrical connectors

Abstract

An electrical connector includes two terminal blocks, a plurality of grounding terminals disposed on the terminal blocks, two shielding members disposed on symmetrical surfaces of the two terminal blocks, and a plurality of grounding members housed within the terminal blocks. A plurality of clamping plates extend from the sidewalls of the shielding members and clamp the upper and lower ends of the terminal blocks. Each grounding member has a contact plate that contacts the grounding 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 member and engage with the terminal blocks, making the connection between the grounding member 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, several signal terminals fixed to the terminal block, several 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 contact area between the conductive plastic component and the grounding terminal is small, which is detrimental to achieving a good grounding effect.

[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 the prior art, this utility model 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 interlocking 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 two ground terminals. Two shielding members are disposed on the symmetrical surfaces of the two terminal blocks and connected to each other, each shielding member having a base plate, a plurality of baffles extending outward from the upper and lower sidewalls of the base plate, a plurality of hollow portions formed between the baffles, and a plurality of clamps bent outward from the side edges of the baffles. The base plate covers the inner surface of the terminal block, the baffles extend from the upper and lower ends of the terminal block, wherein the baffles of one shielding member cover the hollow portions of the other shielding member, and the clamps are disposed on the upper and lower surfaces of the terminal block. 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. The fitting plate is located between the fixing plate and the extension arm, wherein the contact plate contacts the grounding terminal, the supporting portion contacts the shielding component, and the fixing plate and the fitting plate are combined with the terminal block and abut against the shielding component.

[0006] Furthermore, at least one protrusion is provided at the junction of the substrates of the two shielding members, wherein the protrusion on one substrate is connected to the inner surface of the other substrate.

[0007] 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 member is received in the slots, the contact plate is disposed on one side near the bottom of the slot and contacts the grounding terminal, the abutting part is disposed on one side near the opening of the slot and abuts against the shielding member, and the fixing plate and the fitting plate are engaged with the inner sidewall of the slot and abut against the shielding member.

[0008] Furthermore, the inner wall of each of the slots is extended to form a fitting groove, and the fitting plate is inserted into the fitting groove.

[0009] Furthermore, the mating plates of the grounding members disposed in the two terminal blocks are aligned with each other, and the fixing plate of the grounding member disposed in one of the terminal blocks is aligned with the extension arm of the grounding member disposed in the other terminal block.

[0010] Furthermore, each of the signal terminals and each of the grounding terminals is provided with a fixing portion covered 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 vertical length of the baffle does not exceed the vertical length of the fixing portion, and the contact plate is aligned with the fixing portion of the grounding terminal.

[0011] Furthermore, the surface of the contact plate protrudes to form at least one protrusion, which abuts against the fixing portion of the grounding terminal.

[0012] In summary, the electrical connector of this invention has two shielding members on the symmetrical surfaces of the two terminal blocks, thereby shielding the signal interference of the terminal group. The terminal block houses a plurality of grounding members, which are symmetrically arranged on opposite sides of the shielding members and aligned with the grounding terminals. The contact plate of the grounding member abuts against the grounding terminal, the abutting portion of the grounding member contacts the shielding member, and the fixing plate of the grounding member engages with the fitting plate in the slot and contacts the shielding member. This makes the connection between the grounding member and the terminal block more stable and increases the contact area between the grounding member, the grounding terminal, and the shielding member, thereby improving the signal transmission stability of the electrical connector. Attached Figure Description

[0013] Figure 1 This is a perspective view of the electrical connector of this utility model.

[0014] Figure 2 This is an exploded view of the electrical connector of this utility model.

[0015] Figure 3 This is an exploded view of the terminal assembly of the electrical connector of this utility model.

[0016] Figure 4 This utility model electrical connector is in Figure 3 Enlarged view of part A in the middle.

[0017] Figure 5 This is an exploded view of the shielding component and the grounding component of the electrical connector of this utility model.

[0018] Figure 6 This is a perspective view of the grounding component of the electrical connector of this utility model.

[0019] Figure 7 This is a partial exploded view of the terminal group of the electrical connector of this utility model.

[0020] Figure 8 The terminal group of the electrical connector of this utility model is along Figure 1 A cross-sectional view of line II.

[0021] Figure 9 This is a partial top view of the signal terminal and grounding 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 Figure 3 and Figure 5 The terminal group 3 includes two symmetrically arranged and spliced ​​elongated terminal blocks 31, two symmetrically arranged and spliced ​​shielding members 34 between the two terminal blocks 31, several grounding members 35 continuously arranged at fixed intervals in the two terminal blocks 31, and several signal terminals 36 and several grounding terminals 37 embedded in and protruding from the terminal blocks 31. The signal terminals 36 and the grounding terminals 37 are spaced apart and arranged side by side. Two adjacent signal terminals 36 form a differential pair and are arranged between the two grounding terminals 37. The shielding members 34 and the grounding members 35 are formed by continuous stamping of metal sheets. The shielding member 34 is a long, flat plate structure and is arranged on the symmetrical surface of the two terminal blocks 31. The upper and lower ends of the shielding member 34 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 35 is in contact with the shielding member 34, and the other end of the grounding member 35 is in contact with the grounding terminal 37. In this way, the grounding member 35 can absorb and shield the high-frequency interference generated by the signal terminal 36 and improve the signal transmission stability of the electrical connector 100.

[0025] Please see Figure 3 , Figure 4 , Figure 5 and Figure 8Each shielding member 34 is provided with a base plate 341, a plurality of baffles 342 protruding outward from the upper and lower sidewalls of the base plate 341, a plurality of hollow portions 343 formed between two baffles 342, and a plurality of clamping plates 344 extending outward vertically bent from the side edges of the baffles 342. The base plates 341 of the two shielding members respectively cover the inner surfaces of the two terminal blocks 31. The grounding member 35 is received in the terminal block 31 and symmetrically disposed on the front and rear surfaces of the base plate 341 to contact the grounding terminal 37. The baffles 342 extend outward from the upper and lower surfaces of the terminal block 31, and the baffles 342 of one shielding member 34 covers the hollow portions 343 of the other shielding member 34, thereby shielding the signal interference between the terminal groups 3. The clamping plates 344 extend toward the grounding terminal 37 and are symmetrically disposed at the upper and lower ends of the grounding member 35. The clamping plate 344 clamps and fixes the upper and lower surfaces of the terminal block 31, thereby achieving the positioning and fixation between the shielding member 34 and the terminal block 31.

[0026] Please see Figure 4 and Figure 5 The two shielding members 34 are aligned with each other and joined together by welding. Furthermore, at least one protrusion 340 is provided at the joint of the substrates 341 of the two shielding members 34, wherein the protrusion 340 on one substrate 341 is provided to join the inner surface of the other substrate 341, so that the joint of the two shielding members 34 is more stable.

[0027] Please see Figures 6 to 8The inner surface of the terminal block 31 is recessed inward to form a plurality of equidistant slots 311, through which the grounding terminal 37 passes. The grounding member 35 is received in each of the slots 311 of the two terminal blocks 31 and aligned with the grounding terminal 37. Each grounding member 35 includes a contact plate 351, a fixing plate 352 extending perpendicularly bent from one side edge of the contact plate 351, an extension arm 353 extending inwardly from the other side edge of the contact plate 351 relative to the fixing plate 352, a supporting portion 354 formed by bending inwardly from the end of the extension arm 353, and a fitting plate 355 extending perpendicularly bent from the side edge of the contact plate 351, the fitting plate 355 being located between the fixing plate 352 and the extension arm 353. The contact plate 351 is disposed on one side near the bottom of the slot 311 and contacts the grounding terminal 37. The abutment portion 354 is disposed on one side near the opening of the slot 311 and abuts against the shielding member 34. The fixing plate 352 is disposed to snap onto one inner sidewall of the slot 311, and the fitting plate 355 is disposed to snap onto the other inner sidewall of the slot 311, thereby achieving positioning and fixation between the grounding member 35 and the slot 311. Furthermore, the ends of the fixing plate 352 and the fitting plate 355 abut against the surface of the shielding member 34, thereby increasing the grounding area between the grounding member 35, the grounding terminal 37, and the shielding member 34, and improving the signal transmission stability of the electrical connector 100.

[0028] Please see Figure 4 , Figure 7 and Figure 8 Each of the slots 311 has its inner wall extended to form a fitting groove 312, the vertical height of which is less than that of the slot 311 to fix the fitting plate 335. The inner surface of the terminal block 31 is also recessed inward to form a groove 313, which communicates with the slot 311. The fitting groove 312 is located on the side adjacent to the slot 311 and the groove 313, and is configured to align the signal terminal 36. In a specific implementation, the fitting plates 355 of the grounding members 35 disposed in the two terminal blocks 31 are aligned with each other, and the fixing plate 352 of the grounding member 35 disposed in one terminal block 31 is aligned with the extension arm 353 of the grounding member 35 disposed in the other terminal block 31.

[0029] Please see Figures 2 to 4When assembling the electrical connector 100 of this utility model, the grounding member 35 is first inserted into the slot 311 of the terminal block 31, then the two shielding members 34 are respectively assembled onto the symmetrical surfaces of the two terminal blocks 31 and inserted into the insulating body 2, and finally the housing 1 is used to cover the outside of the insulating body 2.

[0030] Please see Figure 3 , Figure 8 as well as Figure 9 Each of the signal terminals 36 and each of the ground terminals 37 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). In a preferred embodiment of the accompanying drawings, the vertical length of the baffle 342 of the shielding member 34 is approximately the same as the vertical length of the fixing portion 370 of the signal terminal 36 and the ground terminal 37, so that the shielding member 34 can just cover the fixing portion 370 of the signal terminal 36 and the ground terminal 37, thereby blocking signal interference between the terminal groups 3. In specific implementation, the vertical length of the baffle 342 of the shielding member 34 is greater than the vertical length of the terminal base 31, but does not exceed the vertical length of the fixing portion 370 of the signal terminal 36 and the ground terminal 37.

[0031] Please see Figure 6 , Figure 8 and Figure 9 The contact plate 351 is flush with the fixing portion 370 of the grounding terminal 37. To prevent a gap from forming between the grounding terminal 37 and the grounding member 35 when the grounding terminal 37 is bent, the grounding member 35 further includes at least one protrusion 356 that protrudes outward from the outer surface of the contact plate 351 and abuts against the fixing portion 370 of the grounding terminal 37. The degree of protrusion of the protrusion 356 can be easily adjusted during production to ensure that the grounding member 35 is reliably in contact with the grounding terminal 37.

[0032] In summary, the electrical connector 100 of this invention has two shielding members 34 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 35, which are symmetrically arranged on opposite sides of the shielding members 34 and aligned with the grounding terminals 37. The contact plate 351 of the grounding member 35 abuts against the grounding terminal 37, the abutting portion 354 of the grounding member 35 contacts the shielding member 34, and the fixing plate 352 and the fitting plate 355 of the grounding member 35 are engaged in the slot 311 and contact the shielding member 34. This makes the connection between the grounding member 35 and the terminal block 31 more stable and increases the contact area between the grounding member 35, the grounding terminal 37, and the shielding member 34, 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 assembly disposed within the insulating body, the terminal assembly having two symmetrically arranged and interlocked 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; and two shielding members disposed on the symmetrical surfaces of the two terminal blocks and connected to each other, each shielding member having a base plate, a plurality of baffles extending outward from the upper and lower sidewalls of the base plate, a plurality of hollow portions formed between the baffles, and a plurality of clamps bent outward from the side edges of the baffles, the base plate covering the inner surface of the terminal block, the baffles extending outward from the upper and lower ends of the terminal block, wherein the baffles of one shielding member cover the baffles of the other shielding member. The device includes a hollow section, with the clamping plate disposed on the upper and lower surfaces of the terminal block; and a plurality of grounding members disposed in the terminal block and symmetrically arranged on both sides of the shielding member and aligned with the grounding terminal. Each grounding member is provided with 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 formed by bending inwardly from the end of the extension arm, and a fitting plate extending perpendicularly from the side edge of the contact plate. The fitting plate is located between the fixing plate and the extension arm, wherein the contact plate contacts the grounding terminal, the supporting portion contacts the shielding member, and the fixing plate and the fitting plate are combined with the terminal block and abut against the shielding member.

2. The electrical connector according to claim 1, characterized in that: At least one protrusion is provided at the joint of the substrates of the two shielding members, wherein the protrusion on one substrate is connected to the inner surface of the other substrate.

3. The electrical connector according to claim 1, characterized in that: The inner surface of the terminal block is recessed inward to form several slots. The grounding terminal passes through the slots, and the grounding member is received in the slots. 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 abuts against the shielding member. The fixing plate and the fitting plate are engaged with the inner sidewall of the slot and abut against the shielding member.

4. The electrical connector according to claim 3, characterized in that: The inner sidewall of each of the slots is expanded to form a fitting groove, and the fitting plate is fixed in the fitting groove.

5. The electrical connector according to claim 1, characterized in that: The mating plates of the grounding members disposed in the two terminal blocks are aligned with each other, and the fixing plate of the grounding member disposed in one of the terminal blocks is aligned with the extension arm of the grounding member disposed in the other terminal block.

6. The electrical connector according to claim 1, characterized in that: Each of the signal terminals and each of the ground terminals is provided with a fixing part covered in the terminal block, a mating part that bends and extends from the upper end of the fixing part, and a welding part that extends from the lower end of the fixing part. The vertical length of the baffle does not exceed the vertical length of the fixing part, and the contact plate is flush with the fixing part of the ground terminal.

7. The electrical connector according to claim 6, characterized in that: The surface of the contact plate protrudes to form at least one protrusion, which abuts against the fixing portion of the grounding terminal.

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