An LC type single-pair cable connector

Abstract

This invention provides an LC-type single-pair cable connector. It solves the problems of existing single-pair cabling systems, such as inconvenience in field termination, difficulty in repeated termination, and compatibility with only one cable gauge. This invention consists of a movable connector and a fixed connector. The movable connector includes a movable end socket, an upper and lower flip-top rotatably mounted on the movable end socket for engaging with the cable, and a knob for locking the upper and lower flip-tops to the cable. A first pin is fixedly installed inside the movable end socket. The fixed connector includes a fixed end socket, an upper and lower flip-top rotatably mounted on the fixed connector for engaging with the cable, and a knob for locking the upper and lower flip-tops to the cable. After flipping up and down, the cable engages; rotating the knob deforms the pressure rod, which then presses against the cable to lock it in place. It has high compatibility and can seamlessly accommodate cables from 18 AWG to 26 AWG.

Description

Technical Field

[0001] This utility model relates to the field of optical component technology, and in particular to an LC type single-pair cable connector. Background Technology

[0002] With the rapid development of data communication technology, the performance requirements for connectors are becoming increasingly stringent. Among the many types of connectors, LC connectors are widely used due to their small size and superior performance. However, existing LC connectors still have some shortcomings. For example, in single-pair connection scenarios, the stability and reliability of their signal transmission need further improvement. At the same time, there is room for improvement in the convenience and repeatability of connections; for instance, they are not easy to terminate in the field, and the strength of the connection after connection is insufficient. These limitations restrict their application in some demanding performance-critical fields.

[0003] Current Type 1 single-pair cabling systems on the market operate at frequencies up to 600 MHz and use methods such as crimping, clip-on solderless connection, and piercing to connect the cables. These methods are inconvenient for field termination and do not facilitate repeated termination. Furthermore, there are many types of single-pair cables, and most existing Type 1 single-pair connectors on the market are only compatible with one type of cable gauge. There are areas for improvement in the existing technology. Summary of the Invention

[0004] This utility model addresses the aforementioned shortcomings by providing an LC-type single-pair cable connector, comprising a movable connector and a fixed connector. The movable connector includes a movable end socket, an upper and lower flip-top rotatably mounted on the movable end socket for engaging with the cable, and a knob for locking the upper and lower flip-tops and the cable. A first pin is fixedly disposed within the movable end socket. The fixed connector includes a fixed end socket, an upper and lower flip-top rotatably mounted on the fixed connector for engaging with the cable, and a knob for locking the upper and lower flip-tops and the cable. The fixed end socket... The base is provided with a second pin for contacting the first pin to achieve electrical connection. The first pin and the second pin are electrically connected to the cable through the PCB board. The knob is movably mounted on the upper and lower flip covers by threaded connection. Several pressure rods are fixedly provided on the upper and lower flip covers at the cable-facing end. The pressure rods extend along the cable length direction and are evenly distributed on the upper and lower flip covers along the cable center. The knob at the cable-facing end is provided with a locking part for pressing against the pressure rod after locking, causing the pressure rod to deform towards the cable center. The diameter of the locking part gradually decreases from the knob towards the cable direction.

[0005] Preferably, the fixed end socket is provided with a locking groove for locking the movable end socket, and the movable end socket is provided with a spring piece for engaging in the locking groove to complete the locking.

[0006] Preferably, the PCB board is provided with a first signal via for connecting cables and a second signal via for connecting the first pin or the second pin.

[0007] Preferably, the PCB board has an insulating base at one end facing the cable. The insulating base has a mounting hole for mounting the cable. The mounting hole communicates with the first signal via. A conductive sheet is inserted into the first signal via to achieve an electrical connection between the cable and the PCB board. The insulating base has a fixing groove that communicates with the mounting hole. A locking pin is provided in the fixing groove by a threaded connection to press the cable against the conductive sheet to fix the cable.

[0008] Preferably, the end of the first pin facing the second pin has a slot for engaging the second pin.

[0009] Preferably, the knob has an anti-slip groove on its outer periphery.

[0010] Preferably, the PCB board includes a dielectric substrate, on which copper is coated as the ground of the circuit, and pads and anti-pads are sequentially provided on the outer periphery of the first via and the second via.

[0011] Preferably, the dielectric substrate is made of FR4 material, with a dielectric constant of 4.4 and a loss tangent of 0.02.

[0012] Preferably, the length of the differential transmission line between the first via and the second via is 1.27 mm, the width of the differential transmission line between the first via and the second via is 0.3 mm, the width of the anti-pad is 0.25 mm, the width of the pad is 0.18 mm, and the diameter of the first via and the second via is 1 mm.

[0013] Compared with the prior art, this utility model locks the cable by flipping it up and down and then fastening it onto the cable. By rotating the knob, the pressure rod is deformed and pressed against the cable to complete the locking. It has high adaptability and can be compatible with cables of 18 AWG to 26 AWG specifications without loss. Furthermore, the PCB board set on the movable connector and the fixed connector increases the operating frequency to 1250 MHz. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the present invention;

[0016] Figure 3 This is a cross-sectional view of the present invention;

[0017] Figure 4This is a structural diagram of the PCB board.

[0018] Figure 5 This is a structural diagram of the front side of the PCB board;

[0019] Figure 6 This is a structural diagram of the reverse side of the PCB board;

[0020] Figure 7 The figure shows the simulation results of the return loss of this utility model up to 600 MHz;

[0021] Figure 8 The figure shows the simulation results of the insertion loss of this invention up to 600 MHz;

[0022] Figure 9 The figure shows the simulation results of the lateral conversion loss of this invention up to 600 MHz;

[0023] Figure 10 The figure shows the simulation results of the equal-level lateral conversion transfer of this invention up to 600 MHz;

[0024] Figure 11 The figure shows the simulation results of the return loss of this utility model up to 1250 MHz;

[0025] Figure 12 The figure shows the simulation results of the insertion loss of this invention up to 1250MHz;

[0026] Figure 13 The figure shows the simulation results of the lateral conversion loss of this invention up to 1250MHz;

[0027] Figure 14 The figure shows the simulation results of the equal-level lateral conversion transfer of this utility model up to 1250 MHz.

[0028] The markings in the diagram are: 1. Movable connector; 2. Fixed connector; 3. Movable end socket; 4. Top flip cover; 5. Bottom flip cover; 6. Knob; 7. First pin; 8. Fixed end socket; 9. Second pin; 10. PCB board; 11. Pressure rod; 12. Locking part; 13. Locking groove; 14. Spring; 15. First signal via; 16. Second signal via; 17. Insulating base; 18. Mounting hole; 19. Conductive sheet; 20. Fixing groove; 21. Locking pin; 22. Slot; 23. Anti-slip groove; 24. Dielectric substrate; 25. Copper; 26. Solder pad; 27. Anti-solder pad. Detailed Implementation

[0029] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0030] like Figure 1-4 As shown, an LC type single-pair cable connector consists of a movable connector 1 and a fixed connector 2. The movable connector 1 includes a movable end socket 3, an upper flip cover 4 and a lower flip cover 5 rotatably mounted on the movable end socket 3 for fastening onto the cable, and a knob 6 for locking the upper flip cover 4, the lower flip cover 5 and the cable. The fixed end socket 8 is provided with a locking groove 13 for locking the movable end socket 3. The movable end socket 3 is provided with a spring piece 14 for engaging in the locking groove 13 to complete the locking. The locking and unlocking of the movable end socket 3 can be easily completed by the spring piece 14. The movable end socket 3 is fixedly provided with a first pin 7. The fixed connector 2 includes a fixed end socket 8, an upper flip cover 4 and a lower flip cover 5 rotatably disposed on the fixed connector 2 and used to fasten to the cable, and a knob 6 for locking the upper flip cover 4, the lower flip cover 5 and the cable. The fixed end socket 8 is provided with a second pin 9 for contacting the first pin 7 to achieve electrical connection. The end of the first pin 7 facing the second pin 9 is provided with a slot 22 for engaging the second pin 9. After installation, the second pin 9 is inserted into the slot 22 of the first pin 7, making the connection more precise and stable and achieving a good electrical connection. The first pin 7 and the second pin 9 are electrically connected to the cable via the PCB board 10. The knob 6 is movably mounted on the upper cover 4 and the lower cover 5 via a threaded connection. Several pressure rods 11 are fixedly provided on the upper cover 4 and the lower cover 5 facing the cable. The pressure rods 11 extend along the length of the cable and are evenly distributed on the upper cover 4 and the lower cover 5 along the center of the cable. The knob 6 has a locking part 12 on the cable-facing end for pressing against the pressure rods 11 after locking, causing the pressure rods 11 to deform towards the center of the cable. The diameter of the locking part 12 gradually decreases from the knob 6 towards the cable. The knob 6 has an anti-slip groove 23 on its outer periphery.

[0031] After flipping up and down, it snaps onto the cable. By rotating the knob 6, the pressure rod 11 deforms and presses against the cable to complete the cable locking. It has high compatibility and can be compatible with cables of 18 AWG to 26 AWG specifications without loss. The operating frequency is increased to 1250 MHz by the PCB board 10 set on the movable connector 1 and the fixed connector 2.

[0032] The PCB board 10 is provided with a first signal via 15 for connecting cables and a second signal via 16 for connecting the first pin 7 or the second pin 9. An insulating base 17 is provided at the end of the PCB board 10 facing the cable. The insulating base 17 has a mounting hole 18 for mounting the cable, which communicates with the first signal via 15. A conductive sheet 19, inserted into the first signal via 15, provides an electrical connection between the cable and the PCB board 10. A fixing groove 20, connected to the mounting hole 18, is provided in the fixing groove 20 via a threaded connection for pressing the cable against the conductive sheet 19 to secure the cable. When installing the movable connector 1, after inserting the first pin 7 and the conductive plate 19 into the PCB board 10, assemble the PCB board 10 and the insulating base 17, inserting the conductive plate 19 into the mounting hole 18. Then, insert the assembled PCB board 10 and insulating base 17 into the movable end socket 3. Insert the cable into the two mounting holes 18, positioning the cable between the conductive plate 19 and the locking pin 21. Tighten the locking pin 21 to press the cable against the conductive plate 19. After fastening the upper flip cover 4 and the lower flip cover 5, tighten the knob 6 to press the pressure rod 11 against the cable, thus completing the assembly of the movable end socket 3. The fixed end socket 8 is assembled similarly. This allows for convenient and quick field termination, repeated termination, and non-destructive compatibility with cables ranging from 18 AWG to 26 AWG.

[0033] like Figure 5-14 As shown, the PCB board 10 includes a dielectric substrate 24, on which a copper 25 is deposited as the ground for the circuit. Pads 26 and anti-pads 27 are sequentially arranged around the outer peripheries of the first signal via 15 and the second signal via 16. The dielectric substrate 24 is made of FR4 with a dielectric constant of 4.4 and a loss tangent of 0.02. The differential transmission line length between the first signal via 15 and the second signal via 16 is 1.27 mm, and the differential transmission line width between the first signal via 15 and the second signal via 16 is 0.3 mm. The anti-pad 27 has a width of 0.25 mm, the pad 26 has a width of 0.18 mm, and the diameters of the first signal via 15 and the second signal via 16 are 1 mm.

[0034] By adjusting the dimensions of the first signal via 15, the second signal via 16, the pad 26, the anti-pad 27, and the differential line, the impedance is optimized to be close to 100Ω, enabling adjustment of return loss, insertion loss, lateral conversion loss, and lateral conversion transfer loss. This further improves the product's transmission performance and reliability while maintaining miniaturization.

[0035] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications to the specification derived therefrom are still within the protection scope of this utility model.

Claims

1. An LC type single pair cable connector characterized by, Composed of a movable connector (1) and a fixed connector (2), the movable connector (1) includes a movable end socket (3), an upper flip cover (4) and a lower flip cover (5) rotatably mounted on the movable end socket (3) for fastening onto a cable, and a knob (6) for locking the upper flip cover (4), the lower flip cover (5) and the cable. A first pin (7) is fixedly installed inside the movable end socket (3). The fixed connector (2) includes a fixed end socket (8), an upper flip cover (4) and a lower flip cover (5) rotatably mounted on the fixed connector (2) for fastening onto a cable, and a knob (6) for locking the upper flip cover (4), the lower flip cover (5) and the cable. A contact point is provided inside the fixed end socket (8) for contacting the first pin (7). The second pin (9) realizes the electrical connection. The first pin (7) and the second pin (9) are respectively electrically connected to the cable through the PCB board (10). The knob (6) is movably set on the upper cover (4) and the lower cover (5) through a threaded connection. Several pressure rods (11) are fixedly provided on the end of the upper cover (4) and the lower cover (5) facing the cable. The pressure rods (11) extend along the length of the cable and are evenly distributed on the upper cover (4) and the lower cover (5) along the center of the cable. The end of the knob (6) facing the cable is provided with a locking part (12) for pressing against the pressure rod (11) after locking and deforming the pressure rod (11) towards the center of the cable. The diameter of the locking part (12) gradually decreases from the knob (6) towards the cable.

2. The LC type single pair cable connector according to claim 1, wherein, The fixed end socket (8) is provided with a locking groove (13) for locking the movable end socket (3), and the movable end socket (3) is provided with a spring piece (14) for engaging in the locking groove (13) to complete the locking.

3. The LC type single pair cable connector according to claim 1, wherein, The PCB board (10) is provided with a first signal via (15) for connecting cables and a second signal via (16) for connecting the first pin (7) or the second pin (9).

4. The LC type single pair cable connector according to claim 3, wherein, The PCB board (10) has an insulating base (17) at one end facing the cable. The insulating base (17) has a mounting hole (18) for mounting the cable. The mounting hole (18) is connected to the first signal via (15). The mounting hole (18) has a conductive piece (19) inserted into the first signal via (15) to achieve an electrical connection between the cable and the PCB board (10). The insulating base (17) has a fixing groove (20) connected to the mounting hole (18). The fixing groove (20) has a locking pin (21) connected by a thread to press the cable against the conductive piece (19) to fix the cable.

5. The LC type single pair cable connector according to claim 1, wherein, The first pin (7) has a slot (22) for engaging the second pin (9) at one end facing the second pin (9).

6. The LC type single pair cable connector according to claim 1, wherein, The knob (6) has an anti-slip groove (23) on its outer periphery.

7. The LC type single pair cable connector according to claim 4, wherein The PCB board (10) includes a dielectric substrate (24), on which copper (25) is coated as the ground of the circuit. The first signal via (15) and the second signal via (16) are provided with pads (26) and anti-pads (27) in sequence on their outer peripheries.

8. The LC type single pair cable connector according to claim 7, wherein, The dielectric substrate (24) is made of FR4 with a dielectric constant of 4.4 and a loss tangent of 0.

02.

9. The LC type single pair cable connector according to claim 7, wherein, The length of the differential transmission line between the first signal via (15) and the second signal via (16) is 1.27 mm, the width of the differential transmission line between the first signal via (15) and the second signal via (16) is 0.3 mm, the width of the anti-pad (27) is 0.25 mm, the width of the pad (26) is 0.18 mm, and the diameter of the first signal via (15) and the second signal via (16) is 1 mm.

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