Stable automotive connector

Abstract

The present application relates to a stable automotive connector. The stable automotive connector described in the present application includes: a plastic shell, a shielding cover, a rubber core, and a center terminal; the shielding cover is assembled and connected to the plastic shell; the rubber core is sleeved and assembled in the shielding cover; the center terminal is sleeved and assembled in the rubber core; the plastic shell includes an outer shell, a protective rib, and a claw piece; the outer shell includes a square part and a circular part, the square part is formed with a square hole, the circular part is formed with a cylindrical hole, the square hole is connected with the cylindrical hole and is coaxial; the shielding cover includes a shielding shell, a shielding tube, a limiting rib, and a limiting ring; the shielding tube is installed at the end of the shielding shell; the four limiting ribs are respectively installed on the outside of the shielding tube; the limiting ring is sleeved on the shielding tube. The stable automotive connector described in the present application has the advantages of stable assembly and good shielding effect.

Description

Technical Field

[0001] The present application relates to the technical field of automobile connectors, and in particular to a stable automobile connector. Background Art

[0002] FAKRA connectors are a very important product in automotive electronics. They are widely used in the field of Internet of Vehicles and can raise the safety and reliability level of vehicle multimedia entertainment systems and automotive electronic systems to a new level. They are of great significance to the entire Internet of Vehicles system related to vehicle system safety.

[0003] The FAKRA connector is a radio frequency (RF) coaxial connector designed for high-frequency signal transmission in the automotive industry. FAKRA is the abbreviation of the German "Fachkreis Automobil", which means "Automotive Professional Group". The standard was proposed by the German Association of the Automotive Industry (VDA) to standardize the interface between vehicle radio and antenna systems. FAKRA connectors are widely used in automotive electronic devices, especially in areas related to infotainment systems, navigation systems, wireless communications (such as Bluetooth, Wi-Fi), radar sensors, and vehicle-to-vehicle communications.

[0004] In the prior art FAKRA connector, after the shell and the shielding cover are assembled, the connection is not tight enough. Under the influence of repeated high and low temperatures in the car, a certain amount of looseness will occur between the shell and the shielding cover, which will cause slight noises when the car is bumpy, affecting the driving experience. In addition, the shielding performance of the shielding cover in the prior art is not good enough. Summary of the invention

[0005] Based on this, the purpose of the present application is to provide a stable automotive connector, which has the advantage of ensuring the stability of connection assembly under different temperatures.

[0006] In one aspect of the present application, a stable automotive connector is provided, comprising a plastic housing, a shielding cover, a plastic core, and a center terminal;

[0007] The shielding cover is assembled and connected to the plastic shell; the plastic core is sleeved and assembled in the shielding cover; the central terminal is sleeved and assembled in the plastic core;

[0008] The plastic shell includes an outer shell, a protective rib, and a claw piece; the outer shell includes a square portion and a circular portion, the square portion is formed with a square hole, the circular portion is formed with a cylindrical hole, the square hole is connected with the cylindrical hole and is coaxial;

[0009] The ends of the inner wall of the cylindrical hole of the plastic shell are respectively installed with four protective ribs and four clamping claws; the protective ribs and the clamping claws are arranged at intervals;

[0010] The protective rib corresponds to the center position of the edge of the square hole;

[0011] The center of the claw piece corresponds to the corner position of the square hole;

[0012] The shielding cover comprises a shielding shell, a shielding tube, a limiting rib and a limiting ring; the shielding tube is installed at the end of the shielding shell; four limiting ribs are respectively installed on the outside of the shielding tube; the limiting ring is sleeved on the shielding tube;

[0013] The end of the shielding shell connected to the shielding tube is formed with a square structure, and the square structure is aligned and assembled with the square hole;

[0014] The limiting rib is connected to the protective rib in an aligned manner and is used to abut against the protective rib;

[0015] The limiting ring is used to abut against the end of the claw piece when the plastic shell and the shielding cover are assembled.

[0016] The stable automobile connector described in the present application is assembled in the following manner: first assemble and connect the plastic shell and the shielding shell, and the claw piece is located between the limiting ribs; then the limiting ring is abutted and fastened with the end of the claw piece, and the limiting ring is sleeved and fastened with the shielding tube; at this time, the claw piece assembles and fastens the plastic shell and the shielding cover in a barbed manner; the claw piece is abutted and fastened by the limiting ring, and the tightness of the abutment is ensured, thereby ensuring the stability of the connection between the plastic shell and the shielding cover after assembly. In addition, when the limiting ring of the present application is assembled, it is assembled after being heated and expanded, and the shielding tube is at room temperature or low temperature. The limiting ring generates thermal expansion after heating, and after expansion, it is sleeved on the shielding tube and abutted against the end of the claw piece.

[0017] Furthermore, a middle portion of the outer wall of the shielding tube is formed with an oblique tooth pattern with a right-angled triangle cross section, and an inner wall of the limiting ring is formed with a matching oblique pattern matching with the oblique tooth pattern;

[0018] The right-angled side of the beveled tooth pattern is close to the shielding shell, and the beveled side of the beveled tooth pattern is close to the other end of the shielding tube, so that the limiting ring can move toward the shielding shell more easily than toward the other end of the shielding tube.

[0019] Furthermore, it also includes a rubber ring and a sleeve;

[0020] The rubber ring is sleeved on the shielding tube and is placed on a side of the limiting ring away from the shielding shell;

[0021] The sleeve is sleeved outside the rubber ring, and one end of the sleeve is in contact with the limiting ring;

[0022] The rubber ring is used to increase the friction between the sleeve and the shielding tube, and to increase the shielding effect;

[0023] The sleeve is used for fastening and abutting against the limiting ring.

[0024] Furthermore, the outer wall of the shielding tube is formed with multiple circles of outer annular patterns; the inner wall of the sleeve is formed with multiple circles of inner annular patterns;

[0025] The inner annular pattern cooperates with the outer annular pattern to increase the relative friction between the shielding tube and the sleeve.

[0026] Furthermore, the outer annular pattern is located at the end of the shielding tube, and the rubber ring is placed between the oblique tooth pattern and the outer annular pattern;

[0027] The thickness of the rubber ring is greater than the width of the gap between the sleeve and the shielding tube, so that the rubber ring and the sleeve have an interference fit.

[0028] Further, the sleeve includes a straight tube portion and an expanded portion;

[0029] The straight tube portion is sleeved on the shielding tube, the expanded portion abuts against the surface of the limiting ring, and the expanded portion is in surface contact with the limiting ring.

[0030] Furthermore, an accommodation groove is formed on the outside of the shielding tube, between two adjacent limiting ribs;

[0031] When the plastic shell and the shielding cover are assembled, the claw piece is located in the receiving groove;

[0032] The inner wall of the square hole of the plastic shell is formed with a plurality of interference ribs, and the interference ribs are used to reinforce the connection between the plastic shell and the shielding cover.

[0033] Furthermore, the cross-sections of the protection rib and the limiting rib are respectively rectangular;

[0034] The sum of the thicknesses of the protective rib and the limiting rib is equal to the distance between the shielding tube and the wall surface of the cylindrical hole, so that the protective rib and the limiting rib are abutted and tightened when assembled.

[0035] Furthermore, the shielding shell, the shielding tube, the limiting ribs, the limiting ring, and the sleeve are made of the same material.

[0036] Furthermore, the claw piece is installed obliquely relative to the outer shell.

[0037] For better understanding and implementation, the present application is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 An exploded view of an exemplary stable automotive connector of the present application;

[0039] Figure 2 This is a schematic diagram of a three-dimensional structure of an exemplary stable automobile connector of the present application;

[0040] Figure 3 It is a front view of an exemplary assembly structure of a plastic housing and a shielding cover of the present application;

[0041] Figure 4 for Figure 3 The cross-sectional view of the NN plane in FIG.

[0042] Figure 5 A side view of an exemplary assembly structure of a plastic housing and a shielding cover of the present application;

[0043] Figure 6 for Figure 5 The cross-sectional view of the MM surface in;

[0044] Figure 7 This is a schematic diagram of a three-dimensional structure of an exemplary plastic shell of the present application;

[0045] Figure 8 A side view of an exemplary plastic housing of the present application;

[0046] Fig. 9 A schematic diagram of a three-dimensional structure of an exemplary shielding cover of the present application;

[0047] Fig.10 A schematic diagram of a three-dimensional structure of an exemplary shielding cover (excluding a shielding shell) of the present application;

[0048] Fig.11 for Fig.10 a cross-sectional view of the structure shown;

[0049] Fig.12 for Fig.11 A magnified view of the local structure A;

[0050] Fig.13 for Fig.11 A magnified view of the local structure B;

[0051] Fig.14 for Fig.11 A magnified view of the local structure C in the figure;

[0052] Fig.15 It is a schematic diagram of the three-dimensional structure of an exemplary shielding tube of the present application. DETAILED DESCRIPTION

[0053] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0054] See also Figure 1-Figure 15 , an exemplary stable automotive connector of the present application includes a plastic shell 10, a shielding cover 20, a plastic core 30, and a center terminal 40;

[0055] The shielding cover 20 is assembled and connected to the plastic housing 10; the plastic core 30 is sleeved and assembled in the shielding cover 20; the central terminal 40 is sleeved and assembled in the plastic core 30;

[0056] The plastic shell 10 includes an outer shell, a protective rib 12, and a claw piece 11; the outer shell includes a square portion and a circular portion, the square portion is formed with a square hole, the circular portion is formed with a cylindrical hole, the square hole is connected with the cylindrical hole and is coaxial;

[0057] The ends of the inner wall of the cylindrical hole of the plastic housing 10 are respectively provided with four protective ribs 12 and four clamping claws 11; the protective ribs 12 and the clamping claws 11 are arranged at intervals;

[0058] The protective rib 12 corresponds to the center position of the edge of the square hole;

[0059] The center of the claw piece 11 corresponds to the corner position of the square hole;

[0060] The shielding cover 20 includes a shielding shell 21, a shielding tube 22, a limiting rib 23, and a limiting ring 24; the shielding tube 22 is installed at the end of the shielding shell 21; four limiting ribs 23 are respectively installed on the outside of the shielding tube 22; the limiting ring 24 is sleeved on the shielding tube 22;

[0061] The end of the shielding shell 21 connected to the shielding tube 22 is formed with a square structure, and the square structure is aligned and assembled with the square hole;

[0062] The limiting rib 23 is connected to the protective rib 12 in an aligned manner and is used to abut against the protective rib 12;

[0063] The limiting ring 24 is used to abut against the end of the claw piece 11 when the plastic housing 10 and the shielding cover 20 are assembled.

[0064] The stable automobile connector described in the present application is assembled in the following manner: first assemble and connect the plastic shell 10 with the shielding shell 21, at which time the claw piece 11 is located between the limiting ribs 23; then the limiting ring 24 is abutted and fastened with the end of the claw piece 11, and the limiting ring 24 is sleeved and fastened with the shielding tube 22; at this time, the claw piece 11 assembles and fastens the plastic shell 10 with the shielding cover 20 in a barbed manner; the claw piece 11 is abutted and fastened by the limiting ring 24, and the tightness of the abutment is ensured, thereby ensuring the stability of the connection between the plastic shell 10 and the shielding cover 20 after assembly. In addition, when the limiting ring 24 of the present application is assembled, it is assembled after being heated and expanded, and the shielding tube 22 is at room temperature or low temperature. The limiting ring 24 generates thermal expansion after heating, and after expansion, it is sleeved on the shielding tube 22 and abutted against the end of the claw piece 11.

[0065] In this application, if Figure 8 As shown, the four protective ribs 12 are respectively located in the four directions of up, down, left and right, and the four claw pieces 11 are respectively located in the four oblique directions; Fig. 9 and Fig.10 As shown, the four limiting ribs 23 are respectively located in the four directions of up, down, left and right, and the four receiving grooves D are respectively located in the four oblique directions. Therefore, when the plastic shell 10 and the shielding cover 20 are assembled, the protective ribs 12 and the limiting ribs 23 are aligned, assembled and abutted and fastened, and the claw piece 11 is assembled with the receiving groove D, and then the end of the claw piece 11 abuts on the limiting ring 24.

[0066] like Figure 6 As shown ( Figure 6 The plastic housing 10 is hooked on the limiting ring 24 through the claw piece 11 to ensure the tightness of the plastic housing 10 and the shielding cover 20 after assembly.

[0067] In some preferred embodiments, the cross-sectional structure of the stop ring 24 is a right-angle trapezoid. In other words, the two sides of the stop ring 24 are an inclined surface and a flat surface respectively, the inclined surface of the stop ring 24 abuts against the expanded portion 262 of the sleeve 26, and the flat surface of the stop ring 24 abuts against the end of the claw piece 11. Figure 3 In the state shown, the sleeve 26 is located on the left side of the limiting ring 24 , and the claw piece 11 is located on the right side of the limiting ring 24 .

[0068] In some preferred embodiments, a middle portion of the outer wall of the shielding tube 22 is formed with an oblique tooth pattern A1 having a right-angled triangle cross section, and an inner wall of the limiting ring 24 is formed with a matching oblique tooth pattern A2 matching with the oblique tooth pattern A1;

[0069] The right-angled side of the beveled tooth pattern A1 is close to the shielding shell 21 , and the hypotenuse of the beveled tooth pattern A1 is close to the other end of the shielding tube 22 , making it easier for the limiting ring 24 to move toward the shielding shell 21 than toward the other end of the shielding tube 22 .

[0070] See also Fig.11 and Fig.13 As shown, the shielding shell 21 is on the right side, so the right-angled side of the beveled tooth pattern A1 is on the right side, and the other end of the shielding tube 22 is on the left side, so the beveled side is on the left side. The matching beveled tooth pattern A2 needs to be matched with the beveled tooth pattern A1, so the right-angled side of the matching beveled tooth pattern A2 is on the left side, and the beveled side is on the right side. Then, when the limit ring 24 moves to the right, it is the relative movement of the two inclined surfaces, which will be relatively easier; and when the limit ring 24 moves to the left, it is the relative movement of the two vertical surfaces, which will be very difficult. Therefore, for the abutment effect between the limit ring 24 and the claw piece 11, the limit ring 24 can more easily abut and tighten the claw piece 11, and the relative separation of the limit ring 24 and the claw piece 11 will become difficult. Furthermore, the assembly tightness of the limit ring 24 and the shielding tube 22 is better guaranteed, and the abutment tightness of the limit ring 24 with the claw piece 11 is also better guaranteed.

[0071] It should be noted that, in the assembled and tightened state, the helical tooth pattern A1 and the matching helical pattern A2 overlap, so Fig.13 In the figure, the oblique tooth pattern A1 and the matching twill pattern A2 overlap to form a line.

[0072] In some preferred embodiments, it further includes a rubber ring 25 and a sleeve 26;

[0073] The rubber ring 25 is sleeved on the shielding tube 22 and is placed on a side of the limiting ring 24 away from the shielding shell 21;

[0074] The sleeve 26 is sleeved outside the rubber ring 25, and one end thereof abuts against the limiting ring 24;

[0075] The rubber ring 25 is used to increase the friction between the sleeve 26 and the shielding tube 22 and to increase the shielding effect;

[0076] The sleeve 26 is used for fastening and abutting against the limiting ring 24 .

[0077] In some preferred embodiments, the outer wall of the shielding tube 22 is formed with multiple circles of outer annular patterns A1; the inner wall of the sleeve 26 is formed with multiple circles of inner annular patterns A2;

[0078] The inner annular pattern A2 cooperates with the outer annular pattern A1 to increase the relative friction between the shielding tube 22 and the sleeve 26 .

[0079] like Figure 11-13As shown in the figure, the left side is the other end of the shielding tube 22, and the right side is the end of the shielding tube 22 close to the shielding shell 21. Figure 11-Figure 14 All of them are cross-sectional views, but no section lines are drawn. In the arrangement state shown in the figure, the left end of the shielding tube 22 is provided with an outer annular pattern A1, and the middle part of the shielding tube 22 near the right end forms an oblique tooth pattern A1; Fig.15 As shown in FIG. , the inner annular pattern A2 on the sleeve 26 is matched therewith and is located at its left end.

[0080] In some preferred embodiments, the outer annular pattern A1 is located at the end of the shielding tube 22, and the rubber ring 25 is placed between the oblique tooth pattern A1 and the outer annular pattern A1;

[0081] The thickness of the rubber ring 25 is greater than the gap width between the sleeve 26 and the shielding tube 22 , so that the rubber ring 25 and the sleeve 26 are interference fit.

[0082] The interference fit between the rubber ring 25 and the sleeve 26 enables the rubber ring 25 to play a sufficiently large friction and filling role between the sleeve 26 and the shielding tube 22 .

[0083] In some preferred embodiments, the sleeve 26 includes a straight tube portion 261 and an expanded portion 262;

[0084] The straight tube portion 261 is sleeved on the shielding tube 22 , and the expanded portion 262 abuts against the surface of the limiting ring 24 , and the expanded portion 262 is in surface contact with the limiting ring 24 .

[0085] The shape of the expanded portion 262 of the sleeve 26 is consistent with the shape of the inclined surface of the limiting ring 24, so the abutment between the expanded portion 262 and the limiting ring 24 is surface contact.

[0086] In some preferred embodiments, an accommodation groove D is formed on the outside of the shielding tube 22 between two adjacent limiting ribs 23;

[0087] When the plastic housing 10 and the shielding cover 20 are assembled, the claw piece 11 is located in the receiving groove D;

[0088] A plurality of interference ribs 13 are formed on the inner wall of the square hole of the plastic housing 10 , and the interference ribs 13 are used to reinforce the connection between the plastic housing 10 and the shielding cover 20 .

[0089] In some preferred embodiments, the cross-sections of the protection rib 12 and the limiting rib 23 are respectively rectangular;

[0090] The sum of the thicknesses of the protective rib 12 and the limiting rib 23 is equal to the distance between the shielding tube 22 and the wall of the cylindrical hole, so that the protective rib 12 and the limiting rib 23 are abutted and fastened when assembled.

[0091] In some preferred embodiments, the shielding shell 21, the shielding tube 22, the limiting rib 23, the limiting ring 24, and the sleeve 26 are made of the same material. The same material means the same thermal expansion coefficient; therefore, during the process of thermal expansion and contraction, the overall consistency and stability of the structure can be maintained, so that no matter what temperature environment, the stability and firmness of the overall structure of the shielding cover 20 can be ensured, and structural looseness between components will not occur.

[0092] In some preferred embodiments, the claw piece 11 is installed obliquely relative to the outer shell.

[0093] In some preferred embodiments, the shielding shell 21, the shielding tube 22, and the limiting ribs 23 are integrally formed by casting.

[0094] In some preferred embodiments, at room temperature, the limiting ring 24 is tightly fitted with the shielding tube 22 , and the sleeve 26 is tightly fitted with the shielding tube 22 .

[0095] The oblique tooth pattern A1, the matching oblique pattern A2, the outer annular pattern A1, and the inner annular pattern A2 in the present application are respectively annular and have tooth-shaped cross-sections, and are not threads.

[0096] The assembly principle and effect of the stable automotive connector of this application:

[0097] First, the plastic housing 10 is integrally sleeved on the shielding tube 22. Figure 6 In the shown placement state, the left end of the plastic shell 10 abuts against the end face of the shielding shell 21. At this time, the claw piece 11 is placed in the receiving groove D. Then, the limit ring 24 is heated, and the limit ring 24 is sleeved on the shielding tube 22 from the right end of the through hole of the shielding shell 21, and until the limit ring 24 abuts against the end face of the claw piece 11; the limit ring 24 is cooled, so that the limit ring 24 is tightly sleeved on the shielding tube 22, and is tightly assembled through the oblique tooth pattern A1 and the matching oblique pattern A2.

[0098] by Figure 6 In the state shown, the rubber ring 25 is installed from the right side; then, the sleeve 26 is heated, and the expanded portion 262 of the sleeve 26 faces the limiting ring 24 and is installed on the shielding tube 22 from right to left until the expanded portion 262 abuts against the limiting ring 24; when the sleeve 26 is cooled, the inner annular pattern A2 of the sleeve 26 engages with the outer annular pattern A1 of the shielding tube 22 to complete the assembly.

[0099] In the present application, the plastic shell 10 and the shielding cover 20 are assembled and fastened, and the claw piece 11 is abutted and fastened, which ensures the overall tightness, and will not loosen even if it expands and contracts. By providing the rubber ring 25, the connection stability between the sleeve 26 and the shielding shell is increased; by providing the sleeve 26 made of metal material, a layer of shielding structure is added, and the shielding effect is improved.

[0100] Compared with the prior art, the overall thickness of the shielding cover 20 of the present application remains unchanged, and the conductive performance remains unchanged, and there is no need to change other alignment assembly structures. Not only is the overall structure more stable, but the shielding effect is also better.

[0101] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A stable automotive connector, characterized in that: Including plastic shell, shielding cover, plastic core and center terminal; The shielding cover is assembled and connected to the plastic shell; the plastic core is sleeved and assembled in the shielding cover; the central terminal is sleeved and assembled in the plastic core; The plastic shell includes an outer shell, a protective rib and a claw piece; the outer shell includes a square portion and a circular portion, the square portion is formed with a square hole, the circular portion is formed with a cylindrical hole, the square hole is connected with the cylindrical hole and is coaxial; The ends of the inner wall of the cylindrical hole of the plastic shell are respectively installed with four protective ribs and four clamping claws; the protective ribs and the clamping claws are arranged at intervals; The protective rib corresponds to the center position of the edge of the square hole; The center of the claw piece corresponds to the corner position of the square hole; The shielding cover comprises a shielding shell, a shielding tube, a limiting rib and a limiting ring; the shielding tube is installed at the end of the shielding shell; four limiting ribs are respectively installed on the outside of the shielding tube; the limiting ring is sleeved on the shielding tube; The end of the shielding shell connected to the shielding tube is formed with a square structure, and the square structure is aligned and assembled with the square hole; The limiting rib is connected to the protective rib in an aligned manner and is used to abut against the protective rib; The limiting ring is used to abut against the end of the claw piece when the plastic shell and the shielding cover are assembled.

2. The stable automotive connector according to claim 1, characterized in that: The middle part of the outer wall of the shielding tube is formed with an oblique tooth pattern with a right-angled triangle cross section, and the inner wall of the limiting ring is formed with a matching oblique pattern matching with the oblique tooth pattern; The right-angled side of the beveled tooth pattern is close to the shielding shell, and the beveled side of the beveled tooth pattern is close to the other end of the shielding tube, so that the limiting ring can move toward the shielding shell more easily than toward the other end of the shielding tube.

3. The stable automotive connector according to claim 2, characterized in that: Also includes rubber rings and sleeves; The rubber ring is sleeved on the shielding tube and is placed on a side of the limiting ring away from the shielding shell; The sleeve is sleeved outside the rubber ring, and one end of the sleeve is in contact with the limiting ring; The rubber ring is used to increase the friction between the sleeve and the shielding tube, and to increase the shielding effect; The sleeve is used for fastening and abutting against the limiting ring.

4. The stable automotive connector according to claim 3, characterized in that: The outer wall of the shielding tube is formed with multiple circles of outer annular patterns; the inner wall of the sleeve is formed with multiple circles of inner annular patterns; The inner annular pattern cooperates with the outer annular pattern to increase the relative friction between the shielding tube and the sleeve.

5. The stable automotive connector according to claim 4, characterized in that: The outer annular pattern is located at the end of the shielding tube, and the rubber ring is placed between the oblique tooth pattern and the outer annular pattern; The thickness of the rubber ring is greater than the width of the gap between the sleeve and the shielding tube, so that the rubber ring and the sleeve have an interference fit.

6. The stable automotive connector according to claim 4, characterized in that: The sleeve comprises a straight tube portion and an expanded portion; The straight tube portion is sleeved on the shielding tube, the expanded portion abuts against the surface of the limiting ring, and the expanded portion is in surface contact with the limiting ring.

7. The stable automotive connector according to claim 4, characterized in that: An accommodation groove is formed on the outside of the shielding tube, between two adjacent limiting ribs; When the plastic shell and the shielding cover are assembled, the claw piece is located in the receiving groove; The inner wall of the square hole of the plastic shell is formed with a plurality of interference ribs, and the interference ribs are used to reinforce the connection between the plastic shell and the shielding cover.

8. The stable automotive connector according to any one of claims 4 to 7, characterized in that: The cross-sections of the protective ribs and the limiting ribs are respectively rectangular; The sum of the thicknesses of the protective rib and the limiting rib is equal to the distance between the shielding tube and the wall surface of the cylindrical hole, so that the protective rib and the limiting rib are abutted and tightened when assembled.

9. The stable automotive connector according to claim 8, characterized in that: The shielding shell, the shielding tube, the limiting ribs, the limiting ring and the sleeve are made of the same material.

10. The stable automotive connector according to claim 8, characterized in that: The claw piece is installed obliquely relative to the outer shell.

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