Vehicle-mounted Ethernet interface adapter

Abstract

The utility model discloses a vehicle-mounted Ethernet interface adapter comprising a shielding housing, a vehicle-mounted Ethernet interface assembly connected with a first end of the shielding housing, and a coaxial interface assembly connected with a second end of the shielding housing. The vehicle-mounted Ethernet interface assembly comprises a first metal shell, a first insulator arranged in the first metal shell and a first connecting terminal inserted in the first insulator; the coaxial interface assembly comprises a second metal shell, a second insulator and a second connecting terminal, the second insulator and the second connecting terminal are arranged in the second metal shell, the first end of the second connecting terminal penetrates through the shielding shell and then is electrically connected with the first connecting terminal, and the second end of the second connecting terminal is inserted into the second insulator. According to the scheme, wire stripping or PCB switching is not needed, the test loss and difference are reduced, the test efficiency is improved, the wire stripping operation complexity is reduced, the test complexity is reduced, the operation is convenient and rapid, the practicability is high, and repeated use can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a vehicle-mounted Ethernet interface adapter. Background Art

[0002] With the increasing popularity of intelligent driving and entertainment features in the automotive industry, various high-speed connectors are being widely used, making the signal transmission environment complex and increasing the requirements for signal transmission quality. In existing technology, signal quality testing equipment typically uses a 4-port coaxial port as the standard signal receiving and output port. When testing in-vehicle Ethernet differential signals, a balance is typically formed between every two ports of the 4-port standard coaxial port. The coaxial signal is then converted into a differential signal using a vector network analyzer to meet the testing requirements of in-vehicle Ethernet differential signals.

[0003] Signal testing of automotive Ethernet connectors usually uses a simple bare wire test solution or a PCB board transfer solution. The bare wire test solution has the following limitations and problems: (1) Cable diameters vary: This requires frequent replacement of the adapter fixture or connector when transferring the test end, increasing the complexity and difficulty of the test; (2) High requirements for the stripping process: The stripping process of the transfer test end has a significant impact on the test results, and the high-demand stripping process places high demands on the professional ability of the tester; (3) Poor test consistency: Due to the above factors, the test results are prone to deviations and poor consistency, affecting the reliability and reproducibility of the test results. The PCB board transfer solution has the following limitations: Although the PCB board transfer solution solves some problems to a certain extent, it is limited by the consistency of the PCB board manufacturing process batches and the limitations of product types and layout sizes. Its versatility and consistency of test results still need to be improved. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an in-vehicle Ethernet interface adapter which reduces operation complexity and improves test efficiency.

[0005] To solve the above technical problems, the present invention adopts a technical solution: providing an in-vehicle Ethernet interface adapter for converting a differential signal interface to a coaxial single-ended signal interface, comprising a shielding shell, an in-vehicle Ethernet interface component connected to a first end of the shielding shell for transmitting differential signals, and a coaxial interface component connected to a second end of the shielding shell for transmitting single-ended signals;

[0006] The in-vehicle Ethernet interface assembly includes a first metal shell fixed to the first end of the shielding shell, a first insulator disposed in the first metal shell, and a first connection terminal inserted in the first insulator;

[0007] The coaxial interface assembly includes a second metal shell fixed to the second end of the shielding shell, a second insulator arranged in the second metal shell, and a second connecting terminal. The first end of the second connecting terminal is electrically connected to the first connecting terminal via the shielding shell, and the second end is fixed in the second insulator.

[0008] Furthermore, the second end of the shielding shell is provided with an assembly groove, and the coaxial interface component is assembled in the assembly groove; the shielding shell has a first through hole that passes through its first end and second end and is coaxially arranged with the second connecting terminal, and the first end of the second connecting terminal is electrically connected to the first connecting terminal after passing through the first through hole.

[0009] Furthermore, the coaxial interface assembly is threadedly connected to the assembly groove.

[0010] Furthermore, the shielding shell is provided with a second through hole at a position corresponding to the assembly slot, and the second through hole is defined as a stepped hole passing through the first end and the second end of the shielding shell, the small aperture section of the stepped hole passes through the bottom surface of the assembly slot, and the large aperture section passes through the first end surface of the shielding shell, and a first limiting step is formed between the large aperture section and the small aperture section; a first bolt passes through the large aperture section and extends into the assembly slot from the small aperture section to be threadedly connected to the coaxial interface assembly in the assembly slot, and the head of the first bolt is limited at the first limiting step.

[0011] Furthermore, the in-vehicle Ethernet interface assembly is threadedly connected to the first end of the shielding shell.

[0012] Furthermore, a third metal shell is sleeved on the outer periphery of the vehicle-mounted Ethernet interface component, and the third metal shell includes a first shell body sleeved on the outer periphery of the first metal shell, a connecting portion formed at the second end of the first shell body, and a through cavity passing through the first shell body and the connecting portion; the vehicle-mounted Ethernet interface component is disposed in the through cavity, with the first end of the vehicle-mounted Ethernet interface component extending out of the first end of the first shell body, and the second end being connected to the coaxial interface component;

[0013] A first countersunk hole is provided on the connecting portion, a second screw hole is provided at a position of the first end of the shielding shell corresponding to the first countersunk hole, and a second bolt is connected to the inner thread of the second screw hole and the first countersunk hole.

[0014] Furthermore, the through cavity has a large cavity section that is closer to the first end and has a larger cross-sectional size, and a small cavity section that is closer to the second end and has a smaller cross-sectional size, and a second limiting step is formed between the small cavity section and the large cavity section; the first metal shell is inserted into the large cavity section and abuts against the second limiting step, and the first insulator passes through the first metal shell toward the second end to extend into the small cavity section.

[0015] Furthermore, a fourth metal shell is sleeved on the outer periphery of the third metal shell, and the fourth metal shell has a second shell body sleeved on the outer periphery of the third metal shell and a shielding portion formed at the second end of the second shell body to cover the connecting portion; the first end of the second shell body extends to the outside of the first end of the on-board Ethernet interface component, and an annular slot is formed between the second shell body and the on-board Ethernet interface component, and the first end surface of the third metal shell forms the bottom surface of the annular slot to limit the insertion stroke.

[0016] Furthermore, the second shell body is provided with a second countersunk hole penetrating along the wall thickness direction, and the first shell body is provided with a third screw hole distributed along the wall thickness direction at a position opposite to the second countersunk hole, and a third bolt is connected through the inner threads of the second countersunk hole and the third screw hole.

[0017] Furthermore, a snap-on spring is provided on the first metal shell.

[0018] The utility model of the vehicle-mounted Ethernet interface converter can directly connect the vehicle-mounted Ethernet interface component to the tested end and directly connect the coaxial interface component to the test equipment by arranging the vehicle-mounted Ethernet interface component at the first end of the shielding shell and the coaxial interface component at the second end; this solution does not require wire stripping or PCB board conversion, reduces test loss and difference, improves test efficiency, reduces the complexity of wire stripping operations, reduces test complexity, is convenient and quick to operate, has strong practicality and is reusable. This solution adopts a shielding shell with a metal full-shielding structure, which can effectively shield interference and improve the anti-interference ability between converted coaxial signals. This solution can quickly replace the vehicle-mounted Ethernet interface component through the above-mentioned threaded connection quick-change structure, thereby improving universal performance. When the vehicle-mounted Ethernet interface component needs to be replaced, it is only necessary to remove the third metal shell and the fourth metal shell, and then the vehicle-mounted and network interface components can be pulled out from the second connection terminal, and the new vehicle-mounted Ethernet interface component can be installed on the first end of the shielding shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 It is a structural diagram of an embodiment of the vehicle-mounted Ethernet interface converter of the present utility model.

[0021] Figure 2 yes Figure 1 Right view of .

[0022] Figure 3 yes Figure 2 Cross-sectional view of AA in the figure.

[0023] Figure 4 yes Figure 2 A cross-sectional view of the BB, with one of the coaxial interface components hidden.

[0024] Figure 5 yes Figure 3 Enlarged view of part A in the middle.

[0025] Figure 6 yes Figure 3 Enlarged view of part B in the middle.

[0026] Figure 7 yes Figure 6 The schematic diagram of the structure in which the first metal shell and the first insulator are hidden.

[0027] Figure 8 This is an exploded view of the insulator and the vehicle Ethernet interface component in one embodiment of the vehicle Ethernet interface converter of the present invention.

[0028] The accompanying drawings in this specification are numeraled as follows:

[0029] In-vehicle Ethernet interface converter 1000; first end 1000a; second end 1000b;

[0030] Shielding shell 100; first through hole 110; annular gap 111; third insulator 112; second screw hole 113; assembly groove 120; second through hole 130; small aperture section 131; large aperture section 132; first limiting step 133;

[0031] In-vehicle Ethernet interface assembly 200; first metal housing 210; housing wall 211; accommodating cavity 212; snap-on spring 213; first insulator 220; plug-in cavity 221; first connecting terminal 230; third metal housing 240; first housing 241; third screw hole 2411; connecting portion 242; first countersunk hole 2421; through cavity 243; large cavity section 2431; small cavity section 2432; second limiting step 2433; fourth metal housing 250; second housing 251; second countersunk hole 2511; shielding portion 252; annular slot 253;

[0032] Coaxial interface assembly 300; second metal shell 310; shell wall 311; assembly block 312; accommodating cavity 313; third through hole 314; second insulator 320; plug cavity 321; second connection terminal 330;

[0033] A first bolt 410 ; a second bolt 420 ; and a third bolt 430 . DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0037] See Figure 1 , Figure 1It is a structural diagram of an embodiment of the vehicle-mounted Ethernet interface converter of the present invention. The following will be elaborated on a specific embodiment shown in the figure. It should be noted that although the vehicle-mounted Ethernet interface converter 1000 of this specific embodiment will be described in detail below as an example, this specific embodiment is not used as a limitation on the scope of the vehicle-mounted Ethernet interface converter 1000 of the present invention. Except for the components that solve the necessary technical problems of the present invention (the shielding shell, coaxial interface component and Ethernet interface component mentioned below), the remaining components can be regarded as non-essential technical elements. These non-essential technical elements can be replaced by other technical elements with the same or similar functions or structures in other embodiments, or these non-essential technical elements may not be needed in other embodiments. The vehicle-mounted Ethernet interface converter 1000 is used to realize the conversion between a differential signal interface and a coaxial single-ended signal interface, which includes a shielding shell 100, a vehicle-mounted Ethernet interface component 200 connected to one end of the shielding shell 100, and a coaxial interface component 300 connected to the other end of the shielding shell 100.

[0038] See Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The in-vehicle Ethernet interface assembly 200 includes a first metal shell 210 fixed to the first end of the shielding shell 100, a first insulator 220 disposed within the first metal shell 210, and a first connecting terminal 230 inserted into the first insulator 220. The coaxial interface assembly 300 includes a second metal shell 310 fixed to the second end of the shielding shell 100, a second insulator 320 disposed within the second metal shell 310, and a second connecting terminal 330. One end of the second connecting terminal 330 is inserted into the second insulator 320, and the other end passes through the shielding shell 100 and is electrically connected to the first connecting terminal 230.

[0039] To facilitate a clearer and more concise description of this solution, the end where the vehicle-mounted Ethernet interface assembly 200 is located is hereinafter referred to as the first end 1000a, and the end where the coaxial interface assembly 300 is located is referred to as the second end 1000b. Thus, there are the first and second ends of the shielding shell 100, the first and second ends of the vehicle-mounted Ethernet interface assembly 200, the first and second ends of the coaxial interface assembly 300, the first and second ends of the first metal shell 210, the first and second ends of the first insulator 220, the first and second ends of the first connecting terminal 230, the first and second ends of the second metal shell 310, the first and second ends of the second insulator 320, the first and second ends of the second connecting terminal 330, the first and second ends of the third metal shell 240, the first and second ends of the fourth metal shell 250, and so on. The first end of each of the above components refers to the end facing the vehicle-mounted Ethernet interface assembly 200, and the second end refers to the end away from the first end.

[0040] The shielding housing 100 utilizes a full-metal shielding structure, which enhances the anti-interference capability of the converted coaxial signals and ensures stable and reliable high-frequency signal mode conversion between the in-vehicle Ethernet interface assembly 200 and the coaxial interface assembly 300. The shielding housing 100 includes first through-holes 110 extending through its first and second ends and coaxially disposed with the second connection terminals 330. The number of first through-holes 110 corresponds to the number of coaxial interface assemblies 300. For example, the two first through-holes 110 shown in the figure are used to respectively allow the second connection terminals 330 of the two coaxial interface assemblies 300 to pass through.

[0041] In the illustrated embodiment, the ends of the shielding housing 100 are threadedly connected to the coaxial interface assembly 300 and the vehicle Ethernet interface assembly 200, respectively, to facilitate quick assembly and disassembly of the coaxial interface assembly 300 and the vehicle Ethernet interface assembly 200. It should be understood that the aforementioned threaded connection is only one type of detachable connection method. In addition to the aforementioned threaded connection method, the shielding housing 100 can also be connected to the vehicle Ethernet interface assembly 200 and the coaxial interface assembly 300 using a detachable connection method such as a snap-on connection.

[0042] A mounting slot 120 is provided at the second end of the shielding shell 100 at a position corresponding to the coaxial interface assembly 300. The coaxial interface assembly 300 is threadedly connected to the mounting slot 120 via a first bolt 410. To prevent the first bolt 410 from being exposed, ensure structural compactness, integrity, and consistency, and further prevent the first bolt 410 from loosening due to contact, the first bolt 410 is concealed within the shielding shell 100. Specifically, a second through-hole 130 is provided on the shielding shell 100 at a position corresponding to the mounting slot 120. The second through-hole 130 is used to allow the first bolt 410 to be inserted into the mounting slot 120 toward the second end. The first end of the second through-hole 130 extends through the first end of the shielding shell 100, and the second end of the second through-hole 130 extends through the bottom surface of the mounting slot 120. A stopper is provided on the second end wall of the second through-hole 130 to prevent the head of the first bolt 410 from disengaging from the second through-hole 130 toward the second end. The limiting portion may be a limiting ring, or a plurality of limiting blocks spaced apart around the inner circumference of the wall of the second through hole 130. Preferably, the second through hole 130 is defined as a stepped hole extending through the first and second ends of the shielding shell 100. The small-diameter section 131 of the stepped hole extends through the bottom surface of the assembly slot 120, and the large-diameter section 132 extends through the first end surface of the shielding shell 100. The limiting portion is defined as a first limiting step 133 formed between the large-diameter section 132 and the small-diameter section 131. The first bolt 410 passes through the large-diameter section 132 and extends into the assembly slot 120 from the small-diameter section 131 to be threadedly connected to the coaxial interface assembly 300 within the assembly slot 120. The head of the first bolt 410 is limited to the first limiting step 133.

[0043] The second metal shell 310 includes a shell wall 311 and an assembly block 312 disposed at a second end of the shell wall 311. The shell wall 311 has a receiving cavity 313 extending through the second end surface of the shell wall 311. The assembly block 312 is coaxially provided with a third through hole 314 that connects the receiving cavity 313 and the first through hole 110. The assembly block 312 is provided with a first screw hole 315 at a position corresponding to the second through hole 130. The first screw hole 315 is configured to be threadedly engaged with the screw of the first bolt 410 extending through the second through hole 130.

[0044] The second insulator 320 is housed in the accommodating cavity 313 and has an insertion cavity 321 coaxially arranged with the second through-hole 130 and the third through-hole 314. The insertion cavity 321 extends through the second insulator 320. The second end of the second connecting terminal 330 is inserted into the insertion cavity 321, and the first end passes through the third through-hole 314 and the first through-hole 110, electrically connecting to the first connecting terminal 230 of the in-vehicle Ethernet interface assembly 200. An annular gap 111 is formed between the outer circumference of the second connecting terminal 330 and the inner circumference of the first through-hole 110. A third insulator 112 is disposed at the first end of the first through-hole 110, surrounding the annular gap 111. The third insulator 112 is used to isolate the shielding shell 100 from the second connecting terminal 330.

[0045] See Figure 6 The first metal shell 210 also includes a shell wall 211 and a receiving cavity 212 extending through the shell wall 211. A snap-on spring 213 is provided on the first metal shell 210. The structure or function of the snap-on spring 213 can be the same or similar to any existing snap structure or function. The snap-on spring 213 is used to snap onto the docked vehicle Ethernet interface assembly 200 when the vehicle Ethernet interface assembly 200 is electrically connected to another docked vehicle Ethernet interface assembly 200. The first insulator 220 is accommodated in the receiving cavity 212 of the first metal shell 210 and also has an insertion cavity 221 extending through the first insulator 220. The first connecting terminal 230 is inserted into the insertion cavity 221 of the first insulator 220. The first end of the first connecting terminal 230 is electrically connected to the docked vehicle Ethernet interface assembly 200, and the second end is electrically connected to the first end of the second connecting terminal 330.

[0046] See Figure 1 、 Figure 3 、 Figure 6 、 Figure 7 and Figure 8A third metal shell 240 is sleeved around the outer periphery of the in-vehicle Ethernet interface assembly 200. The third metal shell 240 includes a first shell body 241 sleeved around the outer periphery of the first metal shell 210, a connecting portion 242 formed at the second end of the first shell body 241, and a through cavity 243 extending through the first shell body 241 and the connecting portion 242. The in-vehicle Ethernet interface assembly 200 is disposed within the through cavity 243, with the first end of the in-vehicle Ethernet interface assembly 200 extending outside the first end of the first shell body 241 and the second end connected to the coaxial interface assembly 300. In the illustrated embodiment, the first end of the first metal shell 210 slightly protrudes beyond the first end of the first insulator 220, and the first insulator 220 extends out of the first metal shell 210 toward the second end. The through cavity 243, adapted to fit the first metal shell 210 and the first insulator 220, comprises a large cavity section 2431, closer to the first end and having a larger cross-sectional dimension, and a small cavity section 2432, closer to the second end and having a smaller cross-sectional dimension. A second limiting step 2433 is formed between the small cavity section 2432 and the large cavity section 2431. The first metal shell 210 is inserted into the large cavity section 2431, with its second end abutting against the second limiting step 2433. The first insulator 220 extends out of the first metal shell 210 toward the second end and into the small cavity section 2432.

[0047] In the illustrated embodiment, the in-vehicle Ethernet interface assembly 200 is threadedly connected to the first end of the shielding housing 100. A first countersunk hole 2421 is provided on the connecting portion 242. A second screw hole 113 is provided at the first end of the shielding housing 100 at a position corresponding to the first countersunk hole 2421. A second bolt 420 is threadedly connected to the second screw hole 113 and the first countersunk hole 2421.

[0048] To prevent exposure of the second bolt 420, ensure structural compactness, integrity, and consistency, further prevent the bolt from loosening due to contact, and improve shielding performance for the in-vehicle Ethernet interface assembly 200, a fourth metal shell 250 is sleeved around the outer periphery of the third metal shell 240. The fourth metal shell 250 includes a second shell body 251 that sleeves around the outer periphery of the third metal shell 240 and a shielding portion 252 formed at the second end of the second shell body 251 to cover the connecting portion 242. The first end of the second shell body 251 extends beyond the first end of the in-vehicle Ethernet interface assembly 200 to enclose the in-vehicle Ethernet interface assembly 200. An annular slot 253 is formed between the second shell body 251 and the in-vehicle Ethernet interface assembly 200. The first end surface of the third metal shell 240 forms the bottom surface of the annular slot 253 to limit insertion travel. The second shell body 251 is provided with a second countersunk hole 2511 that passes through along the wall thickness direction. The first shell body 241 of the third metal shell 240 is provided with a third screw hole 2411 distributed along the wall thickness direction at a position opposite to the second countersunk hole 2511. The second countersunk hole 2511 and the third screw hole 2411 are threadedly connected with a third bolt 430.

[0049] The depth of the countersunk portion of the second countersunk hole 2511 is greater than the thickness of the head of the third bolt 430. When the third bolt 430 passes through the second countersunk hole 2511 and is threadedly connected to the third screw hole 2411, the head of the third bolt 430 is lower than the outer end surface of the second countersunk hole 2511. The head and the outer end of the second countersunk hole 2511 form a groove (not shown). A plug cap (not shown) is installed in the groove to cover the third bolt 430. The outer surface of the plug cap smoothly transitions with the outer surface of the second shell 251. This configuration ensures that the overall appearance of the adapter does not show any bolts, thereby improving the integrity and consistency of the adapter.

[0050] The assembly method of the vehicle-mounted Ethernet interface converter of the present invention is as follows: (1) Assembling the coaxial interface component: first, place the first end of the coaxial interface component in the assembly groove, and at the same time, make the second connection terminal pass through the first through hole and be exposed at the first end of the shielding shell; then, make the first bolt pass through the large-diameter section of the step hole and out from the small-diameter section to the assembly groove, and be threadedly connected with the coaxial interface component in the assembly groove; (2) Assembling the vehicle-mounted Ethernet interface component: first, electrically connect the first connection terminal of the vehicle-mounted Ethernet interface component with the second connection terminal; then, make the second bolt pass through the first countersunk hole and be threadedly connected with the second screw hole at the first end of the shielding shell to fix the vehicle-mounted Ethernet interface component; then, sleeve the fourth metal shell on the outer periphery of the third metal shell, make the third bolt pass through the second countersunk hole and be threadedly connected with the third screw hole to fix the fourth metal shell; finally, install the plug cap in the groove to cover the third bolt.

[0051] The utility model of the vehicle-mounted Ethernet interface converter can directly connect the vehicle-mounted Ethernet interface component to the tested end and directly connect the coaxial interface component to the test equipment by arranging the vehicle-mounted Ethernet interface component at the first end of the shielding shell and the coaxial interface component at the second end; this solution does not require wire stripping or PCB board conversion, reduces test loss and difference, improves test efficiency, reduces the complexity of wire stripping operations, reduces test complexity, is convenient and quick to operate, has strong practicality and is reusable. This solution adopts a shielding shell with a metal full-shielding structure, which can effectively shield interference and improve the anti-interference ability between converted coaxial signals. This solution can quickly replace the vehicle-mounted Ethernet interface component through the above-mentioned threaded connection quick-change structure, thereby improving universal performance. When the vehicle-mounted Ethernet interface component needs to be replaced, it is only necessary to remove the third metal shell and the fourth metal shell, and then the vehicle-mounted and network interface components can be pulled out from the second connection terminal, and the new vehicle-mounted Ethernet interface component can be installed on the first end of the shielding shell.

[0052] The above embodiments merely represent preferred implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An in-vehicle Ethernet interface adapter for converting between a differential signal interface and a coaxial single-ended signal interface, characterized by: It includes a shielding shell, an in-vehicle Ethernet interface component for transmitting differential signals connected to a first end of the shielding shell, and a coaxial interface component for transmitting single-ended signals connected to a second end of the shielding shell; The in-vehicle Ethernet interface assembly includes a first metal shell fixed to the first end of the shielding shell, a first insulator disposed in the first metal shell, and a first connection terminal inserted in the first insulator; The coaxial interface assembly includes a second metal shell fixed to the second end of the shielding shell, a second insulator arranged in the second metal shell, and a second connecting terminal. The first end of the second connecting terminal is electrically connected to the first connecting terminal via the shielding shell, and the second end is fixed in the second insulator.

2. The vehicle-mounted Ethernet interface adapter according to claim 1, wherein: The second end of the shielding shell is provided with an assembly groove, and the coaxial interface component is assembled in the assembly groove; the shielding shell has a first through hole that passes through its first end and the second end and is coaxially arranged with the second connecting terminal, and the first end of the second connecting terminal is electrically connected to the first connecting terminal after passing through the first through hole.

3. The vehicle-mounted Ethernet interface adapter according to claim 2, wherein: The coaxial interface assembly is threadedly connected in the assembly groove.

4. The vehicle-mounted Ethernet interface adapter according to claim 3, wherein: The shielding shell is provided with a second through hole at a position corresponding to the assembly groove, and the second through hole is defined as a stepped hole passing through the first end and the second end of the shielding shell, the small aperture section of the stepped hole passes through the bottom surface of the assembly groove, and the large aperture section passes through the first end surface of the shielding shell, and a first limiting step is formed between the large aperture section and the small aperture section; a first bolt passes through the large aperture section and extends into the assembly groove from the small aperture section to be threadedly connected with the coaxial interface assembly in the assembly groove, and the head of the first bolt is limited at the first limiting step.

5. The vehicle-mounted Ethernet interface adapter according to claim 1, wherein: The vehicle-mounted Ethernet interface component is threadedly connected to the first end of the shielding shell.

6. The vehicle-mounted Ethernet interface adapter according to claim 5, wherein: A third metal shell is sleeved on the outer periphery of the vehicle Ethernet interface component. The third metal shell includes a first shell body sleeved on the outer periphery of the first metal shell body, a connecting portion formed at the second end of the first shell body, and a through cavity passing through the first shell body and the connecting portion. The vehicle Ethernet interface component is disposed in the through cavity, with a first end of the vehicle Ethernet interface component extending out of the first end of the first shell body and a second end connected to the coaxial interface component. A first countersunk hole is provided on the connecting portion, a second screw hole is provided at a position of the first end of the shielding shell corresponding to the first countersunk hole, and a second bolt is connected to the inner thread of the second screw hole and the first countersunk hole.

7. The vehicle-mounted Ethernet interface adapter according to claim 6, wherein: The through cavity has a large cavity section that is closer to the first end and has a larger cross-sectional size, and a small cavity section that is closer to the second end and has a smaller cross-sectional size. A second limiting step is formed between the small cavity section and the large cavity section; the first metal shell is inserted into the large cavity section and abuts against the second limiting step, and the first insulator passes through the first metal shell toward the second end to extend into the small cavity section.

8. The vehicle-mounted Ethernet interface adapter according to claim 6, wherein: A fourth metal shell is sleeved on the outer periphery of the third metal shell, and the fourth metal shell has a second shell body sleeved on the outer periphery of the third metal shell and a shielding portion formed at the second end of the second shell body to cover the connecting portion; the first end of the second shell body extends to the outside of the first end of the in-vehicle Ethernet interface component, and an annular slot is formed between the second shell body and the in-vehicle Ethernet interface component. The first end surface of the third metal shell forms the bottom surface of the annular slot to limit the insertion stroke.

9. The vehicle-mounted Ethernet interface adapter according to claim 8, wherein: The second shell body is provided with a second countersunk hole penetrating along the wall thickness direction, and the first shell body is provided with a third screw hole distributed along the wall thickness direction at a position opposite to the second countersunk hole. The second countersunk hole and the third screw hole are internally threadedly connected with a third bolt.

10. The vehicle-mounted Ethernet interface adapter according to claim 1, wherein: A snap-on elastic piece is provided on the first metal shell.

Images