Terminal structure and connector

Abstract

The application provides a terminal structure and a connector, and relates to the technical field of connectors, and comprises a signal terminal and a grounding terminal, two ends of the signal terminal and the grounding terminal are respectively a contact end and a connecting end, the contact end is used for contacting an electric connection part, a cable comprises a core and a shielding layer arranged in sequence from inside to outside, the core is connected with the connecting end of the signal terminal, a conductive shell is wrapped on the outside of the shielding layer and is electrically connected with the shielding layer, opposite sides of one end of the conductive shell are respectively provided with a first extension part and a second extension part, and the first extension part and the second extension part are connected with the connecting end of the grounding terminal, so that the problem of improving signal transmission performance when the terminal is connected with a groundless cable is solved.

Description

Technical Field

[0001] This invention belongs to the field of connector technology, and more specifically, relates to a terminal structure and a connector. Background Technology

[0002] Grounding wires are typically used to connect the metal casing of electrical equipment to the earth, ensuring that current is safely conducted to the ground in the event of a leakage, thus protecting personnel. However, in certain specific applications, groundless cables may be used. For example, in high-speed signal transmission, groundless high-speed signal cable connectors are sometimes employed to reduce signal interference and improve transmission efficiency. In groundless high-speed signal cable connectors, achieving a grounding connection between the terminals and the cable while simultaneously improving signal transmission performance is a crucial technical challenge that needs to be addressed. Summary of the Invention

[0003] The purpose of this invention is to provide a terminal structure and connector that solves the problem of improving signal transmission performance when the terminal is connected to a groundless cable.

[0004] To achieve the above objectives, the present invention provides a terminal structure, comprising: The signal terminal and the ground terminal have a contact end and a connection end at their two ends, respectively, and the contact end is used to make contact with the electrical connection part; The cable includes a wire core and a shielding layer arranged sequentially from the inside to the outside, and the wire core is connected to the connection end of the signal terminal. A conductive housing is wrapped around the outside of the shielding layer and electrically connected to the shielding layer. A first extension and a second extension are respectively provided on opposite sides of one end of the conductive housing. The first extension and the second extension are connected to the connection end of the grounding terminal.

[0005] Optionally, a plurality of signal terminals and a plurality of ground terminals are arranged side by side at intervals, with at least one signal terminal provided between adjacent ground terminals.

[0006] Optionally, two signal terminals forming a differential signal pair are provided between adjacent grounding terminals.

[0007] Optionally, the conductive housing includes a first conductive plate and a second conductive plate respectively disposed on opposite sides of the cable, one of the first conductive plate and the second conductive plate being provided with an end bend, and the ends of the first conductive plate and the second conductive plate being connected through the end bend.

[0008] Optionally, the first extension and the second extension are respectively disposed on the first conductive plate and the second conductive plate.

[0009] Optionally, one of the first conductive plate and the second conductive plate is provided with an internal bend, the internal bend being disposed between adjacent cables, and the first conductive plate and the second conductive plate being connected through the internal bend.

[0010] Optionally, one of the first conductive plate and the second conductive plate is provided with an end connection hole, and the end bend is inserted into the end connection hole.

[0011] Optionally, one of the first conductive plate and the second conductive plate is provided with an internal connection hole, and the internal bent portion is inserted into the internal connection hole.

[0012] Optionally, it also includes a grounding conductive sheet, which is bent into a wall shape, and the trough section of the grounding conductive sheet is connected to the grounding terminal.

[0013] Optionally, the signal terminal and the ground terminal form two rows of terminal blocks that are opposite to each other and spaced apart. Each row of terminal blocks is connected to a row of cables, and each row of cables is wrapped by a conductive housing. A plug-in space is formed between the two rows of terminal blocks, which is used to accommodate the electrical connection part to be inserted and to make contact with the contact end.

[0014] The present invention also provides a connector, comprising: An outer casing, wherein an accommodating space is provided inside the outer casing; The terminal structure described above is disposed within the receiving space, and the cable extends toward the outside of the housing.

[0015] This invention provides a terminal structure and connector, the advantages of which are as follows: the cable connecting the signal terminal and the ground terminal of the terminal structure is a groundless cable, the cable core is provided with a shielding layer, the shielding layer forms the reference ground of the cable, a conductive shell is wrapped around the outside of the shielding layer and conductively connected to the shielding layer, and a first extension and a second extension provided at the end of the conductive shell away from the cable are conductively connected to the connection end of the ground terminal, thereby realizing the grounding connection between the groundless cable and the terminal. At the same time, the wrapping arrangement of the conductive shell and the first extension and the second extension are respectively provided on opposite sides of the conductive shell, which can improve the signal transmission performance of the terminal.

[0016] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the invention.

[0018] Figure 1 A schematic diagram of a terminal structure according to an embodiment of the present invention is shown.

[0019] Figure 2 It shows Figure 1 A diagram from another perspective.

[0020] Figure 3 A schematic diagram of a terminal assembly of a terminal structure according to an embodiment of the present invention is shown.

[0021] Figure 4 A schematic diagram of a connector according to an embodiment of the present invention is shown.

[0022] Figure 5 A schematic diagram of a first performance test of a connector according to an embodiment of the present invention is shown.

[0023] Figure 6 A schematic diagram of a second performance test of a connector according to an embodiment of the present invention is shown.

[0024] Figure 7 A schematic diagram of a third performance test of a connector according to an embodiment of the present invention is shown.

[0025] Figure 8 A schematic diagram of a fourth performance test of a connector according to an embodiment of the present invention is shown.

[0026] Explanation of reference numerals in the attached figures: 1. Signal terminal; 2. Grounding terminal; 3. Cable; 4. Wire core; 5. Shielding layer; 6. First extension; 7. Second extension; 8. First conductive plate; 9. Second conductive plate; 10. End bend; 11. Internal bend; 12. End connection hole; 13. Internal connection hole; 14. Grounding conductive sheet; 15. Housing. Detailed Implementation

[0027] Preferred embodiments of the invention will now be described in more detail. While preferred embodiments of the invention are described below, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0028] like Figure 1 and Figure 2 As shown, the present invention provides a terminal structure, comprising: Signal terminal 1 and ground terminal 2, with the two ends of signal terminal 1 and ground terminal 2 being a contact end and a connection end, respectively, and the contact end being used to make contact with the electrical connection part; Cable 3 includes a wire core 4 and a shielding layer 5 arranged sequentially from the inside to the outside. The wire core 4 is connected to the connection end of the signal terminal 1. The conductive housing is wrapped around the outside of the shielding layer 5 and electrically connected to the shielding layer 5. A first extension 6 and a second extension 7 are respectively provided on opposite sides of one end of the conductive housing. The first extension 6 and the second extension 7 are connected to the connection end of the grounding terminal 2.

[0029] Specifically, to address the issue of improving signal transmission performance when the terminal is connected to the groundless cable 3, the signal terminal 1 and grounding terminal 2 of the terminal structure provided by this invention are connected to a groundless cable 3. The core 4 of the cable 3 is provided with a shielding layer 5, which forms the reference ground of the cable 3. A conductive shell is wrapped around the outside of the shielding layer 5 and is conductively connected to the shielding layer 5. The first extension 6 and the second extension 7 provided at the end of the conductive shell away from the cable 3 are conductively connected to the connection end of the grounding terminal 2, thereby realizing the grounding connection between the groundless cable 3 and the terminal. At the same time, the wrapping arrangement of the conductive shell and the first extension 6 and the second extension 7 are respectively provided on opposite sides of the conductive shell, which can improve the signal transmission performance of the terminal.

[0030] In this embodiment, the outermost layer of the cable 3 is provided with an insulating sheath.

[0031] In this embodiment, the first extension 6 and the second extension 7 are sheet-like structures integrally formed on the conductive housing.

[0032] Optionally, multiple signal terminals 1 and multiple ground terminals 2 are arranged side by side at intervals, with at least one signal terminal 1 provided between adjacent ground terminals 2.

[0033] Specifically, multiple signal terminals 1 and multiple grounding terminals 2 form a terminal block, with the grounding terminals 2 distributed on both sides of the signal terminals 1, and the conductive housing wraps around the cable 3 connected to the terminal block.

[0034] Optionally, two signal terminals 1 forming a differential signal pair are provided between adjacent grounding terminals 2.

[0035] Specifically, the two signal terminals 1 between adjacent grounding terminals 2 can achieve high-speed signal transmission.

[0036] Optionally, the conductive housing includes a first conductive plate 8 and a second conductive plate 9 respectively disposed on opposite sides of the cable 3. One of the first conductive plate 8 and the second conductive plate 9 is provided with an end bend, and the ends of the first conductive plate 8 and the second conductive plate 9 are connected through the end bend.

[0037] Specifically, the conductive shell is formed by connecting the first conductive plate 8 and the second conductive plate 9 on both sides of the three rows of cables, and the end bend 10 is provided at the end of any conductive plate and welded to the other conductive plate.

[0038] Optionally, the first extension 6 and the second extension 7 are respectively disposed on the first conductive plate 8 and the second conductive plate 9.

[0039] Specifically, the first conductive plate 8 and the second conductive plate 9 are respectively provided with a first extension 6 and a second extension 7 extending toward the terminal at the ends away from the cable 3. The first extension 6 and the second extension 7 are both used to be soldered to the connection end of the grounding terminal 2.

[0040] In this embodiment, the end bend 10 is provided on the first conductive plate 8. The first conductive plate 8 does not have the first extension 6 at both ends of the end bend 10. Therefore, the two grounding terminals 2 at the outermost edge of the terminal block are only welded with the second extension 7 connected to the two ends of the second conductive plate 9. The remaining grounding terminals 2 are welded with the first extension 6 and the second extension 7.

[0041] Optionally, one of the first conductive plate 8 and the second conductive plate 9 is provided with an internal bend, the internal bend is disposed between adjacent cables 3, and the first conductive plate 8 and the second conductive plate 9 are connected through the internal bend.

[0042] Specifically, an internal bend 11 is provided between adjacent cables 3. The function of the internal bend 11 is similar to that of the end bend 10, both being used to connect the first conductive plate 8 and the second conductive plate 9.

[0043] In this embodiment, both the end bend 10 and the inner bend 11 are disposed on the first conductive plate 8.

[0044] Optionally, one of the first conductive plate 8 and the second conductive plate 9 is provided with an end connection hole 12, and the end bend 10 is inserted into the end connection hole 12.

[0045] Specifically, the end bend 10 is inserted into the end connection hole 12 and welded to achieve a stable and conductive connection between the first conductive plate 8 and the second conductive plate 9.

[0046] Optionally, one of the first conductive plate 8 and the second conductive plate 9 is provided with an internal connection hole 13, and the internal bent part 11 is inserted into the internal connection hole 13.

[0047] Specifically, the internal bending part 11 is inserted into the internal connecting hole 13 and welded to further ensure the stable and conductive connection between the first conductive plate 8 and the second conductive plate 9.

[0048] In this embodiment, both the end connection hole 12 and the internal connection hole 13 are provided on the second conductive plate 9.

[0049] Optionally, it also includes a grounding conductive sheet 14, which is bent into a wall shape, and the trough section of the grounding conductive sheet 14 is connected to the grounding terminal 2.

[0050] Specifically, the grounding conductive piece 14 further connects all the grounding terminals 2 of the terminal block to each other, thus optimizing the performance of the terminal structure.

[0051] Optionally, signal terminal 1 and ground terminal 2 form two rows of terminal blocks that are opposite to each other and spaced apart. Each row of terminal blocks is connected to a row of cables 3. Each row of cables 3 is wrapped by a conductive shell. A plug-in space is formed between the two rows of terminal blocks. The plug-in space is used to accommodate the insertion of the electrical connection part and make contact with the contact end.

[0052] Specifically, such as Figure 3 As shown, the terminal structure consists of two rows of terminal blocks forming a terminal group. The insertion space inside the terminal group can accommodate the insertion and electrical connection of the electrical connection part, so as to realize signal transmission through insertion.

[0053] The present invention also provides a connector, comprising: The outer casing 15 has an internal receiving space. The terminal structure described above is disposed within the accommodating space, and the cable 3 extends toward the outside of the housing 15.

[0054] Specifically, the connector, by incorporating the aforementioned terminal structure, forms a terminal connector for connecting the groundless cable 3.

[0055] In this embodiment, as Figure 4 As shown, the connector has two rows of terminal blocks, i.e., terminal groups. The conductive housing in the terminal structure improves the signal transmission performance of the connector. Figure 5 As shown, the connector's performance was optimized after removing the conductive shell, but after removing the conductive shell, the connector exhibited groove drop and greater attenuation at 12G; the connector remained perfectly linear for the first 24G. Figure 6 As shown, after removing the conductive housing, the connector's maximum rise in the first 12 Hz is -8 dB, and it remains below -18 dB within the first 24 Hz. Figure 7 As shown, removing the conductive housing degrades the overall crosstalk of the connector by 20-35 dB in the first 24 Hz, but the crosstalk within the first 24 Hz is less than -40 dB. Figure 8 As shown, after removing the conductive housing, the overall crosstalk of the connector deteriorates by 20-35 dB from 12G to 24GHz, and the crosstalk within the first 24GHz is less than -55dB.

[0056] In this embodiment, an insulator is provided inside the housing 15, which is used to fix the terminal structure described above.

[0057] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A terminal structure, characterized in that, include: The signal terminal and the ground terminal have a contact end and a connection end at their two ends, respectively, and the contact end is used to make contact with the electrical connection part; The cable includes a wire core and a shielding layer arranged sequentially from the inside to the outside, and the wire core is connected to the connection end of the signal terminal. A conductive housing is wrapped around the outside of the shielding layer and electrically connected to the shielding layer. A first extension and a second extension are respectively provided on opposite sides of one end of the conductive housing. The first extension and the second extension are connected to the connection end of the grounding terminal.

2. The terminal structure according to claim 1, characterized in that, Multiple signal terminals and multiple grounding terminals are arranged side by side at intervals, and at least one signal terminal is provided between adjacent grounding terminals.

3. The terminal structure according to claim 2, characterized in that, Two signal terminals forming a differential signal pair are provided between adjacent grounding terminals.

4. The terminal structure according to claim 1, characterized in that, The conductive housing includes a first conductive plate and a second conductive plate respectively disposed on opposite sides of the cable. One of the first conductive plate and the second conductive plate is provided with an end bend, and the ends of the first conductive plate and the second conductive plate are connected through the end bend.

5. The terminal structure according to claim 4, characterized in that, The first extension and the second extension are respectively disposed on the first conductive plate and the second conductive plate.

6. The terminal structure according to claim 4, characterized in that, One of the first conductive plate and the second conductive plate is provided with an internal bending portion, the internal bending portion is disposed between adjacent cables, and the first conductive plate and the second conductive plate are connected through the internal bending portion.

7. The terminal structure according to claim 4, characterized in that, The first conductive plate and the second conductive plate are provided with an end connection hole, and the end bend is inserted into the end connection hole.

8. The terminal structure according to claim 6, characterized in that, The first conductive plate and the second conductive plate are provided with an internal connection hole, and the internal bent part is inserted into the internal connection hole.

9. The terminal structure according to claim 1, characterized in that, It also includes a grounding conductive sheet, which is bent into a wall shape, and the trough section of the grounding conductive sheet is connected to the grounding terminal.

10. The terminal structure according to claim 1, characterized in that, The signal terminal and the ground terminal form two rows of terminal blocks that are opposite to each other and spaced apart. Each row of terminal blocks is connected to a row of cables. Each row of cables is wrapped by a conductive housing. A plug-in space is formed between the two rows of terminal blocks. The plug-in space is used to accommodate the electrical connection part to be inserted and to make contact with the contact end.

11. A connector, characterized in that, include: An outer casing, wherein an accommodating space is provided inside the outer casing; The terminal structure according to any one of claims 1-10, wherein the terminal structure is disposed within the receiving space and the cable extends toward the outside of the housing.

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