Plug connector and conductor structure thereof

Abstract

The invention relates to a plug connector which comprises a shell and a conductor structure combined with the shell. The conductor structure comprises an insulator and a plurality of terminals. The insulator is provided with a plurality of terminal grooves, two ends of the insulator are respectively provided with a plurality of butt joint ports and a plurality of assembly ports which are communicated with the terminal grooves, and the insulator comprises grooves which are arranged in the terminal grooves and are adjacent to the assembly ports and stop parts which are arranged on the inner sides of the grooves. The plurality of terminals are respectively arranged in the terminal grooves, each terminal comprises a pipe body, a butt joint end and an assembling end, the butt joint end and the assembling end are located at two ends of the pipe body, each terminal comprises a convex ring located on the outer ring surface of the pipe body, the convex rings are adjacent to the assembling ends, and the convex rings are located in the grooves and are in contact with the stopping parts. The convex ring structure is arranged on the outer ring surface of the pipe body, so that the structural strength and the strength stability are improved.

Description

Technical Field

[0001] The invention relates to a conductor structure, in particular to a plug connector and its conductor structure. Background Art

[0002] The general automotive Fakra (FAchKReis Automobil) style plug electrical connector includes an insulator, a conductor inserted into the through hole of the insulator, and a terminal in the conductor, and the terminal connects the cable. Generally, there is a puncture-type stopper on the upper side of the outer ring surface of the terminal. This stopper is bent upward from the upper side of the terminal body and has relatively insufficient strength. When the terminal is inserted into the conductor, the contact fixing effect between the stopper and the conductor is insufficient, and the feel of being in place is not clear. There is also a type of terminal with a longer stopper ring on the upper side of the outer ring surface. When the terminal is installed in the conductor, this longer stopper ring easily leads to poor impedance matching characteristics of the connector transmitting electrical signals. Summary of the invention

[0003] The present invention proposes a conductor structure including an insulator and a plurality of terminals. The insulator has a plurality of terminal slots, and the two ends of the insulator respectively have a plurality of docking ports and a plurality of assembly ports connected to the terminal slots, and the insulator includes a groove located in the terminal slot and adjacent to the assembly port and a stopper located inside the groove. The plurality of terminals are respectively arranged in each terminal slot, and each terminal includes a tube body, a docking end and an assembly end located at both ends of the tube body, and each terminal includes a convex ring located on the outer ring surface of the tube body, the convex ring is adjacent to the assembly end, and the convex ring is located in the groove and contacts the stopper.

[0004] Preferably, the insulator includes a plurality of limiting grooves located in the terminal groove, each limiting groove is located between the docking port and the assembly port, each terminal includes a barb, and each barb is respectively engaged in each limiting groove.

[0005] Preferably, each convex ring is a circular structure surrounding the outer annular surface of the tube body.

[0006] Preferably, each terminal includes a reserved section located on the outer annular surface of the tube body, and the reserved section is located between the convex ring and the assembly end.

[0007] Preferably, the width of each convex ring is between 0.2 mm and 0.7 mm.

[0008] Preferably, the cross section of the convex ring is semicircular or trapezoidal.

[0009] Preferably, the conductor structure further comprises a plurality of cables respectively connected to the assembly ends of the terminals.

[0010] Preferably, the conductor structure further comprises an outer conductor and a tail sleeve, the outer conductor is sleeved on the insulator, and the tail sleeve is sleeved on the outer conductor.

[0011] Preferably, the insulator includes a plurality of limit grooves located in the terminal groove, each limit groove is located between the docking port and the assembly port, each terminal includes a barb, and each barb is respectively engaged in each limit groove; each convex ring is a circular structure surrounding the outer ring surface of the tube body; each terminal includes a reserved section located on the outer ring surface of the tube body, and the reserved section is located between the convex ring and the assembly end; the cross-section of the convex ring is semicircular; it further includes an outer conductor and a tail sleeve, the outer conductor is sleeved on the insulator, and the tail sleeve is sleeved on the outer conductor.

[0012] The present invention further provides a plug connector including a housing and a plurality of conductor structures. The housing has a plurality of chambers, and each conductor structure is disposed in each chamber.

[0013] In summary, preferably, a convex ring structure is provided on the outer ring surface of the tube body to improve the structural strength and stability. When the butt end of the terminal is inserted into the terminal slot from the assembly port of the insulator, the convex ring of the terminal will contact the stopper, providing an obvious stop feel during insertion. In addition, according to some embodiments, the width of the convex ring is shortened to form a single short-distance protrusion on the tube body, thereby reducing the impact of impedance matching between the terminal and the insulator of the electrical connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram illustrating the appearance of a plug connector according to some embodiments.

[0015] Figure 2 A front exploded schematic diagram of a conductor structure is shown according to some embodiments.

[0016] Figure 3 A schematic exploded back side view of a conductor structure is shown according to some embodiments.

[0017] Figure 4 To illustrate the basis Figure 1 Schematic diagram of the cross section of the XX lead.

[0018] Figure 5 To illustrate the basis Figure 4 The enlarged schematic diagram is circled by Z.

[0019] Figure 6 To illustrate the basis Figure 1 Side view cross-sectional diagram of the YY lead.

[0020] Figure 7 The diagram is a partially enlarged cross-sectional view of a convex ring having a semicircular cross section according to some embodiments.

[0021] Figure 8 The diagram is a partially enlarged cross-sectional view of a convex ring having a trapezoidal cross-section according to some embodiments.

[0022] Fig. 9FIG. 4 is a schematic diagram illustrating impedance analysis and comparison of terminals according to some embodiments.

[0023] Fig.10 A schematic diagram illustrating a comparison of return loss analysis of terminals according to some embodiments is shown.

[0024] Explanation of symbols 100: Plug connector 200: Conductor structure 1: Shell 10: Room 11: Insertion port 2: Insulator 21: Terminal slot 22: Docking port 23: Assembly port 24: Groove 25: Stopper 26: Limiting slot 3:Terminal 31: Pipe body 32: Docking end 33: Assembly end 34:Protruding ring 341: Circular structure 36: Barb 37: Reserved segment 4: Outer conductor 5: Tail cover 6: Cables. DETAILED DESCRIPTION

[0025] Reference Figure 1 , which is a schematic diagram of the appearance of the plug connector 100. In some embodiments, the plug connector 100 is used to connect the socket connector, and is used for data transmission between various electronic devices (such as antenna modules or radar modules) on the car. The connecting wires of various electronic devices are electrically connected through the plug connector 100 and the socket connector; the plug connector 100 is used for MINI FAKRA (FAchKReis Automobil) style coaxial cables.

[0026] Reference Figure 1 The plug connector 100 includes a housing 1 and a plurality of conductor structures 200. The housing 1 has a plurality of chambers 10. A plurality of insertion ports 11 at both ends of the housing 1 are respectively connected to the chambers 10. The conductor structures 200 are respectively disposed in the chambers 10. The housing 1 is provided for plugging in four conductor structures 200. However, the housing 1 is not limited thereto. The housing 1 can also be provided for plugging in one, two, six, seven, etc. conductor structures 200. The arrangement of the plurality of conductor structures 200 can be arranged in a single row or double row matrix.

[0027] Reference Figures 2 to 6 , Figure 2 This is the front view of terminal 3. Figure 3 This is a schematic diagram of the back appearance of terminal 3. Figure 4 Based on Figure 1 The cross-sectional diagram of the XX lead. Figure 5 Based on Figure 4 The enlarged diagram circled by Z is shown in the figure. Figure 6 Based on Figure 1 The side cross-sectional schematic diagram of the YY lead wire. The conductor structure 200 includes an insulator 2 and a plurality of terminals 3. The insulator 2 has a plurality of terminal slots 21. The two ends of the insulator 2 respectively have a plurality of docking ports 22 and a plurality of assembly ports 23 connected to each terminal slot 21. The insulator 2 includes a groove 24 located in the terminal slot 21 and adjacent to the assembly port 23 and a stopper 25 located inside the groove 24. The inner diameter of the groove 24 is larger than the inner diameter of the terminal slot 21. The stopper 25 is a corner structure located between the groove 24 and the terminal slot 21. Each terminal 3 is a long strip tube. Each terminal 3 is respectively arranged in each terminal slot 21. Each terminal 3 includes a tube body 31, docking ends 32 and assembly ends 33 located at both ends of the tube body 31. Each terminal 3 includes a convex ring 34 located on the outer ring surface of the tube body 31. The convex ring 34 is adjacent to the assembly end 33. The convex ring 34 is located in the groove 24 and contacts the stopper 25.

[0028] Reference Figures 2 to 6 By setting a convex ring 34 structure on the outer ring surface of the tube body 31, the structural strength and strength stability can be improved compared with the general puncture type stopper. When the butt end 32 of the terminal 3 is inserted into the terminal slot 21 from the assembly opening 23 of the insulator 2, the convex ring 34 of the terminal 3 will contact the stopper 25, providing a clear stop feeling after insertion, so that the maintenance personnel can more clearly know that the terminal 3 has been inserted into the insulator 2.

[0029] Reference Figures 2 to 6 In some embodiments, the conductor structure 200 further includes a plurality of cables 6, which are respectively connected to the assembly ends 33 of the terminals 3. The conductor structure 200 further includes an outer conductor 4 and a tail sleeve 5, wherein the outer conductor 4 is sleeved on the insulator 2, and the tail sleeve 5 is sleeved on the outer conductor 4.

[0030] Reference Figures 2 to 6 In some embodiments, the insulator 2 includes a plurality of limiting grooves 26 located in the terminal groove 21, each limiting groove 26 is located between the docking port 22 and the assembly port 23, and each terminal 3 includes a barb 36. When the docking end 32 of the terminal 3 is inserted into the terminal groove 21 from the assembly port 23 of the insulator 2, each barb 36 is respectively engaged with each limiting groove 26, limiting the freedom of the terminal 3 to escape from the terminal groove 21 from the assembly port 23, and the contact between the convex ring 34 and the stopper 25 limits the freedom of the terminal 3 to escape from the docking port 22 from the terminal groove 21.

[0031] Reference Figures 2 to 6 In some embodiments, each terminal 3 includes a reserved section 37 located on the outer ring surface of the tube body 31, and the reserved section 37 is located between the convex ring 34 and the assembly end 33. When the terminal 3 is processed, a metal plate is formed into a tube by blanking stamping, and the area of ​​the reserved section 37 is provided to facilitate the production of the convex ring 34 during the stamping process of the terminal 3 formed by blanking stamping.

[0032] Reference Figure 2 and Figure 7 , Figure 7 3 is a partially enlarged cross-sectional schematic diagram of a semicircular convex ring 34. In some embodiments, each convex ring 34 is a circular structure 341 that surrounds the outer ring surface of the tube body 31. The width of each convex ring 34 is between 0.2 mm and 0.7 mm, and can be 0.4 mm, 0.5 mm, or 0.6 mm. In this way, the width of each convex ring 34 is shortened and a single short-distance protrusion structure is formed on the tube body 31, reducing the influence of impedance matching between the terminal 3 of the electrical connector and the insulator 2.

[0033] Reference Figure 7 and Figure 8 , Figure 8 3 is a partial enlarged cross-sectional schematic diagram of a convex ring 34 with a trapezoidal cross section. In some embodiments, the cross section of the convex ring 34 is semicircular, but not limited to this. In some embodiments, the cross section of the convex ring 34 is trapezoidal.

[0034] Reference Fig. 9 , which is a comparative diagram of impedance analysis of terminal 3. In some embodiments, curve A is the analysis result of the test of terminal 3 with convex ring 34, and curve B is the analysis result of the test of terminal 3 with a longer stop ring. The conventional terminal 3 known to the inventor has a longer stop ring above the outer ring surface. When the terminal 3 is installed in the conductor, after testing, curve B has a low point at the value of 150 on the vertical axis. This longer stop ring easily leads to poor impedance matching characteristics of the connector transmitting electrical signals, affecting the transmission of the terminal 3 signal. Fig. 9 The horizontal axis value of 100 ohms is the reference value. When the terminal 3 with the convex ring 34 is configured at the line end portion, after testing, the curve A rises at the vertical axis value of 150 and is close to the horizontal axis value of 100. The curve A is flat at the horizontal axis value of 100. The structure of the convex ring 34 reduces the influence of the impedance matching between the terminal 3 of the electrical connector and the insulator 2, and improves the stability of the signal transmission of the terminal 3.

[0035] Reference Fig.10, is a schematic diagram of the return loss (RL) analysis and comparison of the terminal 3. In some embodiments, curve A is the analysis result of the terminal 3 with the convex ring 34 in the test, and curve B is the analysis result of the conventional terminal 3 with a longer stop ring in the test. Fig.10 The solid line O is the standard value. The conventional terminal 3 known to the inventor has a longer stop ring portion above the outer ring surface. When the terminal 3 is tested, the curve B exceeds the standard value of the solid line O at the vertical axis 5G frequency. The terminal 3 has a loss problem when transmitting signals. The terminal 3 with the convex ring 34 is tested. The curve A is much lower than the solid line O. The terminal 3 can reduce the loss effect when transmitting signals.

[0036] In summary, according to some embodiments, a convex ring structure is provided on the outer ring surface of the tube body to improve the structural strength and stability. When the butt end of the terminal is inserted into the terminal slot from the assembly port of the insulator, the convex ring of the terminal will contact the stopper, providing an obvious stop feel during insertion. In addition, according to some embodiments, the width of the convex ring is shortened to form a single short-distance protrusion structure on the tube body, thereby reducing the impact of impedance matching between the terminal and the insulator of the electrical connector.

Claims

1. A conductor structure of a plug connector, characterized in that : An insulator having a plurality of terminal slots, wherein two ends of the insulator respectively have a plurality of docking ports and a plurality of assembly ports connected to the terminal slots, and the insulator comprises a groove located in the terminal slot and adjacent to the assembly port and a stopper located inside the groove; and A plurality of terminals are respectively arranged in each of the terminal grooves, each of the terminals comprises a tube body, a docking end and an assembly end located at two ends of the tube body, each of the terminals comprises a convex ring located on the outer ring surface of the tube body, the convex ring is adjacent to the assembly end, the convex ring is located in the groove and contacts the stopper.

2. The conductor structure according to claim 1, characterized in that The insulator includes a plurality of limit grooves located in the terminal groove, each of the limit grooves is located between the docking port and the assembly port, each of the terminals includes a barb, and each of the barbs is respectively engaged in the limit grooves.

3. The conductor structure according to claim 2, characterized in that Each of the convex rings is a circular structure surrounding the outer ring surface of the tube body.

4. The conductor structure according to claim 2, characterized in that Each of the terminals includes a reserved section located on the outer annular surface of the tube body, and the reserved section is located between the convex ring and the assembly end.

5. The conductor structure according to claim 1, characterized in that :The width of each convex ring is between 0.2mm and 0.7mm.

6. The conductor structure according to claim 1, characterized in that : The cross section of the convex ring is semicircular or trapezoidal.

7. The conductor structure according to claim 1, characterized in that : It also includes a plurality of cables, which are respectively connected to each of the assembly ends of the terminals.

8. The conductor structure according to claim 1, characterized in that : It further includes an outer conductor and a tail sleeve, wherein the outer conductor is sleeved on the insulator, and the tail sleeve is sleeved on the outer conductor.

9. The conductor structure according to claim 1, characterized in that : The insulator includes a plurality of limit grooves located in the terminal groove, each of the limit grooves is located between the docking port and the assembly port, each of the terminals includes a barb, and each of the barbs is respectively engaged in the limit grooves; each of the convex rings is a circular structure that surrounds the outer ring surface of the tube body; each of the terminals includes a reserved section located on the outer ring surface of the tube body, and the reserved section is located between the convex ring and the assembly end; the cross-section of the convex ring is semicircular; it further includes an outer conductor and a tail sleeve, the outer conductor is sleeved on the insulator, and the tail sleeve is sleeved on the outer conductor.

10. A plug connector, characterized in that : a housing having a plurality of chambers; and A plurality of conductor structures according to any one of claims 1 to 8 are respectively arranged in each of the chambers.

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