Terminal assemblies for coaxial connectors, coaxial connectors, and vehicles

Abstract

This utility model discloses a terminal assembly for a coaxial connector, a coaxial connector, and a vehicle. The terminal assembly relates to the field of connector technology. It includes an outer conductor terminal with a terminal body, the terminal body forming a insertion space extending through the terminal body in a first direction, and a sidewall of the terminal body forming an assembly gap communicating with the insertion space. At least a portion of a cable structure is inserted into the insertion space, and a shielding ring is fitted onto the cable structure and located within the insertion space, blocking at least a portion of the assembly gap. By fitting the shielding ring onto the cable structure and located within the insertion space, and blocking at least a portion of the assembly gap, signal leakage can be reduced. This allows the shielding ring, the outer conductor terminal, and the cable shielding layer to form a reliable and sealed electrical connection, improving the shielding effect of the terminal assembly. The shielding ring located within the outer conductor terminal provides a stable diameter channel for high-frequency signals, effectively reducing the risk of sudden changes in characteristic impedance.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a terminal assembly of a coaxial connector, a coaxial connector, and a vehicle. Background Technology

[0002] In related technologies, coaxial connectors are standard connectors in the automotive industry, widely used for high-frequency signal transmission in vehicles. A coaxial connector typically consists of a terminal assembly, a plastic housing, and a locking mechanism. The outer conductor terminals of the terminal assembly are made of continuous material of uniform thickness, rolled into a cylindrical shape using a stamping process. However, gaps exist at the joints, posing a risk of signal leakage and reducing the shielding effectiveness of the terminal assembly. Furthermore, an annular protrusion is created on the outer contour surface of the outer conductor terminal to fit snugly against the inner cavity of the plastic housing, ensuring a secure assembly. However, the diameter of this annular protrusion abruptly changes. Since the inner contour surface of the outer conductor terminal serves as the transmission channel for high-frequency signals, this abrupt change in diameter causes discontinuities in the characteristic impedance, leading to significant energy loss during transmission. Utility Model Content

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a terminal assembly for a coaxial connector that can shield at least part of the assembly gaps and cutouts to reduce signal leakage, thereby improving the shielding effect of the terminal assembly and effectively reducing the risk of abrupt changes in characteristic impedance.

[0004] This utility model further proposes a coaxial connector having the above-mentioned terminal assembly.

[0005] This utility model further proposes a vehicle having the above-mentioned coaxial connector.

[0006] The terminal assembly of the coaxial connector according to an embodiment of the present invention includes:

[0007] The outer conductor terminal has a terminal body, the terminal body has a insertion space extending through the terminal body in a first direction, and the sidewall of the terminal body has an assembly gap communicating with the insertion space.

[0008] A cable structure, at least a portion of which is inserted into a plug-in space;

[0009] A shielding ring is fitted onto the cable structure and located within the insertion space, and the shielding ring covers at least a portion of the assembly gap.

[0010] According to an embodiment of the present invention, the terminal assembly of the coaxial connector, by fitting a shielding ring onto the cable structure and located within the insertion space, and by covering at least a portion of the assembly gap, reduces signal leakage and enables a reliable and sealed electrical connection between the shielding ring, the outer conductor terminal, and the cable shielding layer, thereby improving the shielding effect of the terminal assembly. Furthermore, the shielding ring, located within the outer conductor terminal, provides a stable-diameter channel for high-frequency signals, effectively reducing the risk of abrupt changes in characteristic impedance.

[0011] According to an embodiment of the present invention, the terminal assembly of the coaxial connector has a shielding ring constructed as a circular ring structure to define a passage space for the cable structure to pass through.

[0012] According to an embodiment of the present invention, the terminal assembly of the coaxial connector has an outer conductor terminal with a signal shielding area, and a shielding ring is assembled on the signal shielding area to cover the assembly gap at the signal shielding area.

[0013] According to an embodiment of the present invention, the terminal assembly of the coaxial connector includes a shielding ring comprising a first end wall and a second end wall. Along the circumference of the shielding ring, the first end wall has a first limiting structure, and the second end wall has a second limiting structure disposed opposite to the first limiting structure. The first limiting structure and the second limiting structure are assembled together.

[0014] According to an embodiment of the present invention, the terminal assembly of the coaxial connector includes a cable structure comprising a dielectric body, a shielding ring sleeved on the dielectric body, the shielding ring having a first axial limiting portion, and the dielectric body having a second axial limiting portion, the first axial limiting portion and the second axial limiting portion being fitted together.

[0015] According to an embodiment of the present invention, the terminal assembly of the coaxial connector has a first axial limiting portion consisting of a limiting boss and a limiting groove, and a second axial limiting portion consisting of the other of a limiting boss and a limiting groove, wherein at least a portion of the limiting boss is fitted into the limiting groove.

[0016] According to the terminal assembly of the coaxial connector of the present invention, the first axial limiting part is a limiting boss, the second axial limiting part is a limiting groove, the limiting groove is formed on the outer peripheral wall of the medium body and extends along the circumferential direction of the medium body, and there are multiple limiting bosses, which are arranged sequentially along the circumferential direction of the shielding ring.

[0017] According to an embodiment of the present invention, the terminal assembly of the coaxial connector further includes an outer conductor terminal: a cable crimping part, which is connected to the terminal body, and a cut is formed at the connection between the cable crimping part and the terminal body.

[0018] The coaxial connector according to an embodiment of the present invention includes the terminal assembly of the coaxial connector described in the above embodiment.

[0019] The vehicle according to an embodiment of the present invention includes the coaxial connector described in the above embodiment.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is an exploded view of the female terminal assembly and the plastic shell according to an embodiment of the present invention;

[0023] Figure 2 This is a cross-sectional view of the female terminal assembly and the plastic shell after assembly according to an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the female terminal assembly according to an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the outer conductor terminal of the female terminal assembly according to an embodiment of the present invention;

[0026] Figure 5 This is a front view of the outer conductor terminal of the female terminal assembly according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the dielectric body of the female terminal assembly according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the plastic shell of the female terminal assembly according to an embodiment of the present utility model;

[0029] Figure 8 This is an exploded view of the male terminal assembly and the plastic shell according to an embodiment of the present invention;

[0030] Figure 9 This is a cross-sectional view of the male terminal assembly and the plastic shell after assembly according to an embodiment of this utility model;

[0031] Figure 10 This is a schematic diagram of the structure of the male terminal assembly according to an embodiment of the present utility model;

[0032] Figure 11 This is a schematic diagram of the structure of the outer conductor terminal of the male terminal assembly according to an embodiment of the present invention;

[0033] Figure 12 This is a front view of the outer conductor terminal of the male terminal assembly according to an embodiment of the present invention;

[0034] Figure 13 This is a schematic diagram of the structure of the dielectric body of the male terminal assembly according to an embodiment of the present invention;

[0035] Figure 14 This is a schematic diagram of the structure of the plastic shell of the male terminal assembly according to an embodiment of the present utility model;

[0036] Figure 15 This is a schematic diagram of the structure of the shielding ring in an embodiment of this utility model when it is not crimped.

[0037] Figure 16 This is a schematic diagram from another perspective when the shielding ring of this utility model is not crimped;

[0038] Figure 17 This is a schematic diagram of the structure of the shielding ring after crimping according to an embodiment of this utility model;

[0039] Figure 18 This is a schematic diagram from another perspective after the shielding ring of this utility model embodiment has been crimped.

[0040] Figure label:

[0041] Terminal assembly 100;

[0042] 10 outer conductor terminal; 11 terminal body; 12 insertion space; 13 assembly gap; 14 cable crimping part; 15 cut; 16 annular protrusion;

[0043] Cable structure 20;

[0044] Medium 21; Second axial limiting part 211;

[0045] Cable 22;

[0046] Shielding ring 30;

[0047] First end wall 31; First limiting structure 311;

[0048] Second end wall 32; Second limiting structure 321;

[0049] Through-space 33; First axial limiting part 34;

[0050] Wire clamp 40; center conductor terminal 41; plastic shell 42; locking 43; slot 44; locking strip 45. Detailed Implementation

[0051] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0052] The following is for reference. Figures 1-18 This invention describes a terminal assembly 100 of a coaxial connector, a coaxial connector, and a vehicle according to embodiments of the present invention.

[0053] The terminal assembly 100 of the coaxial connector according to an embodiment of the present invention includes:

[0054] The outer conductor terminal 10 has a terminal body 11, the terminal body 11 has a insertion space 12 extending through the terminal body 11 in a first direction, and the sidewall of the terminal body 11 has an assembly gap 13 communicating with the insertion space 12.

[0055] Cable structure 20, at least a portion of cable structure 20 is inserted into insertion space 12;

[0056] The shielding ring 30 is sleeved on the cable structure 20 and located within the insertion space 12, and the shielding ring 30 covers at least a portion of the assembly gap 13.

[0057] The coaxial connector can be a FAKRA coaxial connector, consisting of a plastic shell 42, a locking mechanism 43, and a terminal assembly 100. The plastic shell 42 serves as the outer structure, providing physical protection for the terminal assembly 100 to prevent dust, moisture, and mechanical damage. The material of the plastic shell 42 (such as nickel-plated copper, stainless steel, or plastic) can be selected according to the application scenario to ensure temperature resistance, corrosion resistance, and vibration resistance. After the terminal assembly 100 is installed in the plastic shell 42, it is held in place by the locking strip 45 of the plastic shell 42. After the locking mechanism 43 is installed in the plastic shell 42, it holds the locking strip 45, fixing the terminal assembly 100 inside the plastic shell 42. The shielding performance of the plastic shell 42, the stability of the locking mechanism 43, and the low-loss design of the terminal assembly 100 together ensure signal quality and reduce attenuation and reflection.

[0058] like Figure 1 and Figure 8 As shown, the first direction is Figure 1 and Figure 8 In the X direction, the terminal assembly 100 includes: an outer conductor terminal 10. The outer conductor terminal 10 can be made of a continuous material of equal thickness and rolled into a cylindrical shape by a stamping process, so that the terminal body 11 forms an insertion space 12 that penetrates the terminal body 11 along the first direction. The stamping process is directly formed by a mold, which helps to reduce material waste and has high precision. However, the joint of the side wall of the terminal body 11 forms an assembly gap 13 that communicates with the insertion space 12. The outer conductor terminal 10 also includes a cable crimping part 14, which is connected to the terminal body 11 and crimped with the cable shielding layer. The connection between the cable crimping part 14 and the terminal also forms a cut 15 to facilitate the material stretching and transition, which may cause a risk of signal leakage.

[0059] At least a portion of the cable structure 20 is inserted into the insertion space 12. In some embodiments of this invention, half, two-thirds, or other proportions of the cable structure 20 may be inserted into the insertion space 12. However, this invention is not limited to this, and the cable structure 20 may be inserted into the insertion space 12 in other proportions, as long as at least a portion of the cable structure 20 is inserted into the insertion space 12. The cable structure 20 may include a cable 22 and a cable shielding layer. After at least a portion of the cable structure 20 is inserted into the insertion space 12, the outer conductor terminal 10 and the cable 22 form a continuous conductive path, reducing signal leakage and radiation loss.

[0060] A shielding ring 30 is fitted onto the cable structure 20 and located within the insertion space 12. The shielding ring 30 covers at least a portion of the assembly gap 13. In some embodiments of this invention, the shielding ring 30 may cover half, two-thirds, or a similar proportion of the assembly gap 13. However, this invention is not limited to this; the shielding ring 30 may also cover other parts of the assembly gap 13, as long as it covers at least a portion of the assembly gap 13. By covering at least a portion of the assembly gap 13 with the shielding ring 30, signal leakage can be reduced. Furthermore, the shielding ring 30, the outer conductor terminal 10, and the cable shielding layer can form a reliable and sealed electrical connection, improving the shielding effect of the terminal assembly 100, and thus improving the shielding effect of the coaxial connector. Additionally, the shielding ring 30, located within the outer conductor terminal 10, provides a stable diameter channel for high-frequency signals, preventing abrupt changes in characteristic impedance.

[0061] Furthermore, the terminal assembly 100 can be a female terminal assembly or a male terminal assembly. By providing a shielding ring 30 in both the female terminal assembly and the male terminal assembly, this invention can further improve the shielding effect of the coaxial connector and further reduce the risk of sudden changes in characteristic impedance. Specifically, this utility model provides annular shielding rings 30 of equal diameter in both the female terminal assembly and the male terminal assembly. Both the female terminal assembly and the male terminal assembly are composed of an outer conductor terminal 10, a dielectric body 21, a center conductor terminal 41, a shielding ring 30, a cable 22, and a clamp 40. The assembly process of the female terminal assembly and the male terminal assembly is the same. The coaxial connector includes a male connector and a female connector. Both the male connector and the female connector are assembled from a terminal assembly 100, a plastic shell 42, and a locking mechanism 43, respectively. The annular shielding ring 30 provides a stable channel for high-frequency signals, avoiding abrupt changes in characteristic impedance. The shielding ring 30 blocks at least part of the assembly gap 13, which can reduce signal leakage. The shielding ring 30 also forms a reliable and closed electrical connection with the outer conductor terminal 10 and the cable shielding layer, which can further improve the shielding effect of the coaxial connector and further reduce the risk of abrupt changes in characteristic impedance.

[0062] According to an embodiment of the present invention, the terminal assembly 100 of the coaxial connector, by fitting a shielding ring 30 onto the cable structure 20 and located within the insertion space 12, and by covering at least a portion of the assembly gap 13, enables the shielding ring 30, the outer conductor terminal 10, and the cable shielding layer to form a reliable and sealed electrical connection, thereby improving the shielding effect of the terminal assembly 100. Furthermore, the shielding ring 30, located within the outer conductor terminal 10, provides a stable diameter channel for high-frequency signals, effectively preventing abrupt changes in characteristic impedance.

[0063] The terminal assembly 100 of the coaxial connector according to an embodiment of the present utility model, such as Figure 17 and 18 As shown, the shielding ring 30 can be constructed as a ring to define a passage space 33 through which the cable structure 20 passes.

[0064] The shielding ring 30 can be constructed as a ring to define the passage space 33 through which the cable structure 20 passes, thus providing shielding for at least a portion of the cable structure 20. Furthermore, the ring shape of the shielding ring 30 matches the shape of the cable 22 to optimize the electromagnetic field distribution and maintain stable characteristic impedance. The ring structure is also of uniform diameter, allowing the shielding ring 30 to provide a stable diameter channel for high-frequency signals, ensuring uniform distribution of electromagnetic waves on the inner surface of the shielding ring 30. This avoids localized field concentration or reflection phase differences caused by diameter variations, thereby preventing abrupt changes in characteristic impedance and reducing energy loss during transmission.

[0065] The terminal assembly 100 of the coaxial connector according to an embodiment of the present utility model, such as Figure 4 and Figure 11 As shown, the outer conductor terminal 10 has a signal shielding area, and the shielding ring 30 is assembled in the signal shielding area to block the assembly gap 13 at the signal shielding area.

[0066] The outer conductor terminal 10 may have two annular protrusions 16 surrounding it circumferentially. A signal shielding area may be located between the two annular protrusions 16 along the axial direction of the outer conductor terminal 10. A shielding ring 30 is fitted between the two annular protrusions 16 to block the assembly gap 13 at the signal shielding area, thereby reducing signal leakage and improving the shielding effect of the terminal assembly 100. The shielding ring 30 also forms a reliable and sealed electrical connection with the outer conductor terminal 10 and the cable shielding layer, further enhancing the shielding effect of the coaxial connector.

[0067] Specifically, the outer peripheral wall of the terminal body 11 of the outer conductor terminal 10 may be provided with two annular protrusions 16. The two annular protrusions 16 are used to fit tightly against the inner cavity of the plastic shell 42 to ensure the concentricity of the terminal assembly 100 within the plastic shell 42, and the two annular protrusions 16 stably support the terminal assembly 100 so that the terminal assembly 100 is stably assembled within the plastic shell 42. However, along the axial direction of the outer conductor terminal 10, the diameter of the inner peripheral wall of the annular protrusion 16 is different from the diameter of other walls of the inner peripheral wall of the terminal body 11, causing a sudden change in the diameter of the inner peripheral wall of the terminal body 11 at the annular protrusion 16. Since the inner peripheral wall of the terminal body 11 serves as a transmission channel for high-frequency signals, the sudden change in the diameter of the inner peripheral wall of the terminal body 11 at the annular protrusion 16 will cause discontinuity in characteristic impedance, thereby causing excessive loss of transmitted energy.

[0068] This invention assembles a shielding ring 30 inside the terminal body 11, with the shielding ring 30 positioned between two annular protrusions 16 to axially position the shielding ring 30. This not only blocks the assembly gap 13 on the side wall of the terminal body 11 to reduce signal leakage and improve the shielding effect of the terminal assembly 100, but also provides a stable channel for high-frequency signals, avoiding abrupt changes in characteristic impedance and thus reducing energy loss during transmission.

[0069] The terminal assembly 100 of the coaxial connector according to an embodiment of the present utility model, such as Figures 15-18 As shown, the shielding ring 30 may include a first end wall 31 and a second end wall 32. Along the circumference of the shielding ring 30, the first end wall 31 is formed with a first limiting structure 311, and the second end wall 32 is formed with a second limiting structure 321 that is disposed opposite to the first limiting structure 311. The first limiting structure 311 and the second limiting structure 321 are assembled together.

[0070] The shielding ring 30 may include a first end wall 31 and a second end wall 32. When not crimped, the shielding ring 30 is an arc-shaped plate, with the first end wall 31 and the second end wall 32 separated. Along the circumference of the shielding ring 30, the first end wall 31 has a first limiting structure 311, and the second end wall 32 has a second limiting structure 321 opposite to the first limiting structure 311. The first limiting structure 311 can be constructed as one of a slot and a buckle, and the second limiting structure 321 can be the other of a slot and a buckle. The first limiting structure 311 and the second limiting structure 321 are fitted together. Alternatively, both the first limiting structure 311 and the second limiting structure 321 can be constructed as magnetic structures, allowing them to fit together through magnetic attraction. However, this utility model is not limited to this. The first limiting structure 311 and the second limiting structure 321 can also be constructed as other types of mating structures, as long as the first limiting structure 311 and the second limiting structure 321 are assembled together.

[0071] This utility model is illustrated by taking the first limiting structure 311 as a trapezoidal or similar boss and the second limiting structure 321 as a trapezoidal or similar slot that matches the trapezoidal boss as an example. When the trapezoidal boss is assembled into the trapezoidal slot, the hypotenuse of the trapezoidal cross-section will generate a normal component force when subjected to force, which will press the contact surface between the boss and the slot together to form a mechanical self-locking. This will cause the first end wall 31 and the second end wall 32 to abut against each other and lock together. Moreover, the symmetry of the trapezoidal cross-section can automatically guide the boss into the center of the slot, reducing the offset error during assembly. By assembling the first limiting structure 311 and the second limiting structure 321, the shielding ring 30 changes from an arc-shaped plate to a circular ring structure. The closed circular ring structure can be used to block at least a portion of the assembly gap 13 to reduce signal leakage from the assembly gap 13, improve the shielding effect of the terminal assembly 100, and the shielding ring 30 also forms a reliable and closed electrical connection with the outer conductor terminal 10 and the cable shielding layer, which can further improve the shielding effect of the coaxial connector.

[0072] The terminal assembly 100 of the coaxial connector according to an embodiment of the present utility model, such as Figure 6 , Figure 13 and Figure 15 As shown, the cable structure 20 may include a dielectric body 21, a shielding ring 30 sleeved on the dielectric body 21, the shielding ring 30 having a first axial limiting part 34, and the dielectric body 21 having a second axial limiting part 211, the first axial limiting part 34 and the second axial limiting part 211 being assembled together.

[0073] In high-frequency signal transmission, axial displacement of the shielding ring 30 and the dielectric body 21 can disrupt the continuity of the shielding layer, leading to electromagnetic leakage and external interference intrusion. By using the first axial limiting part 34 and the second axial limiting part 211 in conjunction, and with the shielding ring 30 assembled within the terminal body 11 and positioned between the two annular protrusions 16, the shielding ring 30 and the dielectric body 21 are axially positioned, effectively limiting their axial displacement and thus improving signal shielding continuity.

[0074] Furthermore, the cable structure 20 may also include a cable 22 and a center conductor terminal 41. The center conductor terminal 41 is assembled inside the dielectric body 21. The cable 22, which extends into the insertion space 12, is inserted into the center conductor terminal 41. The insertion point of the cable 22 and the center conductor terminal 41 is located within the signal shielding area. The shielding ring 30, which is fitted onto the dielectric body 21, can shield the insertion point of the cable 22 and the center conductor terminal 41, significantly improving the electromagnetic shielding effectiveness of the terminal assembly 100 and enhancing mechanical stability. In addition, the shielding ring 30 can also block the assembly gap 13 on the side wall of the terminal body 11 to reduce signal leakage, further improving the shielding performance of the terminal assembly 100.

[0075] The terminal assembly 100 of the coaxial connector according to an embodiment of the present utility model, such as Figure 6 , Figure 13 and Figure 15 As shown, the first axial limiting part 34 is one of the limiting boss and the limiting groove, and the second axial limiting part 211 is the other of the limiting boss and the limiting groove. At least a portion of the limiting boss is fitted into the limiting groove.

[0076] In this embodiment, when the first axial limiting part 34 is a limiting boss, the second axial limiting part 211 is a limiting groove; when the first axial limiting part 34 is a limiting groove, the second axial limiting part 211 is a limiting boss. At least a portion of the limiting boss is fitted into the limiting groove. In the first embodiment of this invention, the limiting boss can be fitted into the limiting groove in equal proportions (one-half, two-thirds, etc.), but this invention is not limited to this. The limiting boss can also be fitted into the limiting groove in other proportions, as long as at least a portion of the limiting boss is fitted into the groove. By fitting at least a portion of the limiting boss into the limiting groove, the medium 21 can be axially positioned, reducing the risk of axial displacement of the medium 21 and thus improving the continuity of signal shielding.

[0077] The terminal assembly 100 of the coaxial connector according to an embodiment of the present utility model, such as Figure 6 , Figure 13 and Figure 15As shown, the first axial limiting part 34 is a limiting boss, and the second axial limiting part 211 is a limiting groove. The limiting groove is formed on the outer peripheral wall of the medium body 21 and extends along the circumference of the medium body 21. There are multiple limiting bosses, and the multiple limiting bosses are arranged sequentially along the circumference of the shielding ring 30.

[0078] In this invention, there may be multiple limiting bosses. In some embodiments, there may be two, three, or four limiting bosses, but this invention is not limited to these numbers and may have other numbers of limiting bosses, as long as there are multiple limiting bosses. This invention is illustrated using three limiting bosses as an example. The three limiting bosses are evenly arranged sequentially along the circumference of the shielding ring 30. A limiting groove is formed on the outer peripheral wall of the dielectric body 21 and extends along the circumference of the dielectric body 21. All three limiting bosses are fitted into the limiting groove. The three limiting bosses can be equidistantly distributed along the circumference of the shielding ring 30, forming a three-point support structure. This evenly distributes the axial tensile or compressive force to the contact surface between the shielding ring 30 and the dielectric body 21, thereby limiting the axial movement of the dielectric body 21. This further reduces the risk of axial displacement of the dielectric body 21, thereby improving signal shielding continuity and further enhancing the shielding effect of the coaxial connector.

[0079] The terminal assembly 100 of the coaxial connector according to an embodiment of the present utility model, such as Figure 4 , Figure 11 As shown, the outer conductor terminal 10 further includes a cable crimping part 14, which is connected to the terminal body 11, and a cut 15 is formed at the connection between the cable crimping part 14 and the terminal body 11.

[0080] Before crimping, the outer conductor terminal 10 has an open cable crimping portion 14. A cut 15 is formed at the connection between the cable crimping portion 14 and the terminal body 11, which facilitates the material transition between the two parts. However, the signal is prone to leakage from the cut 15. By assembling a shielding ring 30 inside the outer conductor terminal 10, and using the shielding ring 30 to block the assembly gap 13 on the side wall of the terminal body 11 and the cut 15 at the connection between the cable crimping portion 14 and the terminal body 11, a stable channel for high-frequency signals can be provided, avoiding abrupt changes in characteristic impedance. The shielding ring 30 also forms a reliable and closed electrical connection with the outer conductor terminal 10 and the cable shielding layer, which can further improve the shielding effect of the terminal assembly 100.

[0081] Furthermore, the terminal assembly 100 can specifically consist of an outer conductor terminal 10, a dielectric body 21, a center conductor terminal 41, a shielding ring 30, a cable 22, and a clamp 40. The assembly process is as follows: First, the tail end of the center conductor terminal 41 is crimped and fixed to the center conductor of the cable 22. Second, the clamp 40 is crimped and fixed to the cable shielding layer. Then, the crimped center conductor terminal 41 is inserted into the dielectric body 21. Next, the shielding ring 30 is crimped (sleeved) onto the contact point between the clamp 40 and the dielectric body 21. Then, the outer conductor terminal 10 is sleeved on the outer periphery of the shielding ring 30. Finally, the cable crimping portion 14 of the outer conductor terminal 10 is crimped to the cable shielding layer, and the dielectric body 21 abuts against the inner peripheral wall of the outer conductor terminal 10 to ensure the concentricity of the dielectric body 21 and the outer conductor terminal 10. Simultaneously, the assembly gap 13 on the side wall of the terminal body 11 is closed, and the shielding ring 30 is limited between the two annular protrusions 16 of the outer conductor terminal 10 to block the assembly gap 13 on the side wall of the terminal body 11, and also to block the cut 15 at the connection between the cable crimping part 14 and the terminal body 11, thus assembling as follows. Figure 3 and Figure 10 The terminal assembly 100 shown.

[0082] like Figure 2 and Figure 9 As shown, after the terminal assembly 100 is inserted into the plastic shell 42, its annular protrusion 16 is held in place by the retaining strip 45 of the plastic shell 42. After the locking lock 43 is inserted into the slot 44 of the plastic shell 42, it holds the retaining strip 45, thus fixing the terminal assembly 100 inside the plastic shell 42. The two annular protrusions 16 of the outer conductor terminal 10 are in close contact with the inner surface of the plastic shell 42, ensuring the concentricity of the terminal assembly 100 inside the plastic shell 42 and stably supporting the terminal assembly 100 inside the plastic shell 42.

[0083] The terminal assembly 100 can be a female terminal assembly or a male terminal assembly. This utility model provides annular shielding rings 30 of the same diameter in both the female and male terminal assemblies. Both the female and male terminal assemblies are composed of an outer conductor terminal 10, a dielectric body 21, a center conductor terminal 41, a shielding ring 30, a cable 22, and a clamp 40. The assembly process of the female and male terminal assemblies is the same. The coaxial connector includes a male connector and a female connector. Both the male and female connectors are assembled from the terminal assembly 100, a plastic shell 42, and a locking mechanism 43, respectively. The annular shielding ring 30 provides a stable channel for high-frequency signals, avoiding abrupt changes in characteristic impedance. The shielding ring 30 also forms a reliable and closed electrical connection with the outer conductor terminal 10 and the cable shielding layer, which can further improve the shielding effect of the coaxial connector and further reduce the risk of abrupt changes in characteristic impedance.

[0084] The coaxial connector according to this embodiment includes the terminal assembly 100 of the coaxial connector described above. By fitting a shielding ring 30 onto the cable structure 20 and located within the insertion space 12, and by covering at least a portion of the assembly gap 13, the shielding ring 30, the outer conductor terminal 10, and the cable shielding layer can form a reliable and sealed electrical connection, thereby improving the shielding effect of the coaxial connector. Furthermore, the shielding ring 30, located within the outer conductor terminal 10, can provide a stable diameter channel for high-frequency signals, reducing the risk of abrupt changes in characteristic impedance.

[0085] The vehicle according to this utility model embodiment includes the coaxial connector of the above embodiment. By sleeved a shielding ring 30 on the cable structure 20 and located within the insertion space 12, and with the shielding ring 30 covering at least a portion of the assembly gap 13, a reliable and closed electrical connection can be formed between the shielding ring 30, the outer conductor terminal 10, and the cable shielding layer, thereby improving the shielding effect of the coaxial connector. Furthermore, the shielding ring 30 located within the outer conductor terminal 10 can provide a stable diameter channel for high-frequency signals, reducing the risk of sudden changes in characteristic impedance, significantly improving signal transmission stability, reducing the risk of electromagnetic interference, and enhancing the reliability and safety of the vehicle system.

[0086] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0087] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A terminal assembly (100) for a coaxial connector, characterized by, include: An outer conductor terminal (10) has a terminal body (11), the terminal body (11) having a insertion space (12) extending through the terminal body (11) in a first direction, and the sidewall of the terminal body (11) having an assembly gap (13) communicating with the insertion space (12). A cable structure (20), at least a portion of which is inserted into the insertion space (12). A shielding ring (30) is fitted onto the cable structure (20) and located within the insertion space (12), and the shielding ring (30) covers at least a portion of the assembly gap (13).

2. The coaxial connector terminal assembly (100) of claim 1, wherein, The shielding ring (30) is constructed in a circular shape to define a passage space (33) through which the cable structure (20) passes.

3. The coaxial connector terminal assembly (100) of claim 1, wherein, The outer conductor terminal (10) has a signal shielding area, and the shielding ring (30) is assembled on the signal shielding area to block the assembly gap (13) at the signal shielding area.

4. The coaxial connector terminal assembly (100) of claim 2, wherein, The shielding ring (30) includes a first end wall (31) and a second end wall (32). Along the circumference of the shielding ring (30), the first end wall (31) forms a first limiting structure (311), and the second end wall (32) forms a second limiting structure (321) that is opposite to the first limiting structure (311). The first limiting structure (311) and the second limiting structure (321) are assembled together.

5. The coaxial connector terminal assembly (100) of any of claims 1-4, wherein, The cable structure (20) includes a dielectric body (21), a shielding ring (30) is sleeved on the dielectric body (21), the shielding ring (30) has a first axial limiting part (34), the dielectric body (21) has a second axial limiting part (211), and the first axial limiting part (34) and the second axial limiting part (211) are assembled together.

6. The terminal assembly (100) of the coaxial connector according to claim 5, characterized in that, The first axial limiting part (34) is one of the limiting boss and the limiting groove, and the second axial limiting part (211) is the other of the limiting boss and the limiting groove, with at least a portion of the limiting boss being fitted into the limiting groove.

7. The terminal assembly (100) of the coaxial connector according to claim 6, characterized in that, The first axial limiting part (34) is the limiting boss, and the second axial limiting part (211) is the limiting groove. The limiting groove is formed on the outer peripheral wall of the medium body (21) and extends along the circumferential direction of the medium body (21). There are multiple limiting bosses, and the multiple limiting bosses are arranged sequentially along the circumferential direction of the shielding ring (30).

8. The terminal assembly (100) of the coaxial connector according to claim 3, characterized in that, The outer conductor terminal (10) further includes a cable crimping part (14), which is connected to the terminal body (11), and a cut (15) is formed at the connection between the cable crimping part (14) and the terminal body (11).

9. A coaxial connector, characterized in that, The terminal assembly (100) of the coaxial connector according to any one of claims 1-8.

10. A vehicle, characterized in that, Includes the coaxial connector according to claim 9.

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