Shielding contact structure and automobile coaxial connector

Abstract

The utility model discloses a shielding contact structure and an automobile coaxial connector, and relates to the technical field of connectors, the shielding contact structure comprises an outer shielding shell and a mounting partition plate, the outer shielding shell is provided with a mounting groove, a first mounting part and a second mounting part are arranged in the mounting groove, the top of the first mounting part is provided with a first groove, one end of the mounting partition plate is provided with a first boss, and the other end of the mounting partition plate is provided with a second boss. The first boss can be inserted into the first groove, one side of the first boss is provided with a plurality of first salient points, one side of the first mounting part is provided with a second groove, one end of the mounting partition plate is provided with a second boss, and the second boss can be inserted into the second groove. The problems that in the prior art, assembling is not in place easily, and inspection and detection are difficult are solved, and the problems that electromagnetic signals are leaked, signal transmission is affected and crosstalk is generated due to the fact that a metal shielding piece is not assembled in place are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a shielded contact structure and an automobile coaxial connector. Background Art

[0002] With the rapid development of the automotive industry, market requirements for various vehicle performances are becoming increasingly stringent. In particular, with the trend towards intelligent and connected vehicles, vehicle performance is constantly improving. This intelligentization inevitably places more stringent requirements on data collection and processing. Traditional coaxial automotive connectors are primarily used in car navigation systems, car phones, audio equipment, electronic radar, cameras, etc. Connectors with higher signal transmission rates, smaller footprints, and more convenient wiring are an inevitable requirement for this industry development.

[0003] Automotive coaxial connectors consist of multiple independent conductive circuits. During signal transmission, the electromagnetic interference resistance between these circuits is a critical factor. Prior art methods typically employ multiple metal shields to provide mutual electromagnetic shielding between the circuits, thereby achieving interference resistance. However, these metal shields are prone to improper assembly and are difficult to inspect and detect. Furthermore, improper assembly can lead to electromagnetic signal leakage, impacting signal transmission and causing crosstalk.

[0004] The invention patent application number CN202311771797.0 and publication number CN117913569A filed by our company discloses a system structure for optimizing the impedance and SI performance of MINI FAKRA. However, during assembly, this invention patent still has problems such as improper assembly and difficulty in inspection and detection, which can easily lead to electromagnetic signal leakage, affect signal transmission, and cause crosstalk. Utility Model Content

[0005] Based on this, in response to the above problems, the utility model proposes a shielded contact structure and an automotive coaxial connector, which solves the problem that the metal shielding parts used for electromagnetic shielding in the current automotive coaxial connector are easily misassembled during assembly and difficult to inspect and detect, as well as the problem that electromagnetic signals leak due to the misassembly of the metal shielding parts, affecting signal transmission and causing crosstalk.

[0006] The technical solution of the utility model is:

[0007] A shield contact structure includes an outer shield shell and a mounting partition. The outer shield shell is provided with a mounting slot, the mounting slot extending through the front end of the outer shield shell. A first mounting portion and a second mounting portion are provided in the mounting slot, the first mounting portion being arranged on top of the second mounting portion and located at the rear end of the mounting slot. The mounting partition can be inserted into the mounting slot and contacts the first mounting portion and the second mounting portion. The mounting partition divides the mounting slot into a plurality of independent terminal mounting cavities.

[0008] A first groove is provided on the top of the first mounting portion, and a first boss is provided at one end of the mounting partition inserted into the mounting groove to cooperate with the first groove. The first boss can be inserted into the first groove and has a clearance fit with the first groove. A plurality of first protrusions are provided on one side of the first boss, and one end of the plurality of first protrusions can contact the inner side wall of one side of the first groove.

[0009] A second groove is provided on one side of the first mounting part to cooperate with the first groove, and a second boss is provided on the end of the mounting partition inserted into the mounting groove to cooperate with the second groove. The second boss is provided to cooperate with the first boss, and the second boss can be inserted into the second groove and cooperate with the second groove with a gap.

[0010] Preferably, a third groove is provided on the top of the second mounting portion, and a third boss is provided at one end of the mounting partition inserted into the mounting groove to cooperate with the third groove. The third boss can be inserted into the third groove and has a clearance fit with the third groove.

[0011] Preferably, a fourth groove is provided in the third groove, and a fourth boss is provided on the third boss to cooperate with the fourth groove. The fourth boss can be inserted into the fourth groove and cooperate with the fourth groove gap. A number of second protrusions are provided on one side of the fourth boss, and the number of second protrusions can contact the inner side wall of one side of the fourth groove.

[0012] Preferably, a pair of stepped fifth grooves are provided in the third groove, the pair of fifth grooves are matched with the fourth groove, and a pair of fifth bosses are provided on the third boss to match the pair of fifth grooves. The pair of fifth bosses can be inserted into the pair of fifth grooves respectively and match with the gap of the fifth grooves.

[0013] Preferably, the first groove and the fourth groove are staggered, wherein the first groove is located on the right side of the top of the first mounting portion, and the fourth groove is located on the left side of the third groove.

[0014] Preferably, a pair of first limiting grooves are provided in the mounting groove, and the first limiting grooves are arranged on both sides of the front end of the mounting groove. The two sides of the front end of the mounting partition can be respectively inserted into the pair of first limiting grooves and have a clearance fit with the first limiting grooves. A second limiting groove is provided in the mounting groove, and the second limiting groove is arranged at the rear end of the mounting groove and is matched with the first mounting part. The rear end of the mounting partition can be inserted into the second limiting groove and has an interference fit with the second limiting groove. A pair of third limiting grooves are provided in the mounting groove, and the third limiting grooves are respectively located on both sides of the middle part of the mounting groove. The two sides of the middle part of the mounting partition can be respectively inserted into the third limiting groove and have an interference fit with the third limiting groove.

[0015] Preferably, a first limiting rib is provided on both sides of the rear end of the mounting partition, and the rear end of the mounting partition is interference fit with the second limiting groove through the first limiting rib, and a pair of second limiting ribs are provided on both sides of the middle part of the mounting partition, and the two sides of the middle part of the mounting partition are interference fit with the third limiting groove through a pair of second limiting ribs.

[0016] Preferably, a limiting plug is provided on one side of the second mounting portion at the front end of the mounting groove, the limiting plug is located between a pair of first limiting grooves, and a limiting slot is provided on the mounting partition to cooperate with the limiting plug. When the mounting partition is inserted into the mounting groove, the limiting plug can be inserted into the limiting slot.

[0017] Preferably, a plurality of terminal mounting tubes are provided at the rear end of the outer shielding shell, and the plurality of terminal mounting tubes are connected to the mounting grooves. When the mounting partition is inserted into the outer shielding shell, the plurality of terminal mounting tubes are respectively connected to a plurality of independent terminal mounting cavities to form a plurality of independent L-shaped cavities for installing signal terminals.

[0018] An automotive coaxial connector comprises the above-mentioned shielding contact structure.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model provides a first boss and a first groove with clearance fit, and a second boss and a second groove with clearance fit. When in use, the clearance fit between the first boss and the first groove, and the clearance fit between the second boss and the second groove, extend the electromagnetic induction distance between the two parallel signal terminals, thereby improving the anti-crosstalk performance between the two signal terminals. At the same time, by providing a plurality of first protrusions on one side of the first boss, the first protrusions contact the first groove, which can achieve partial isolation, further improving the anti-crosstalk performance between the signal terminals. At the same time, it can reduce the manufacturing difficulty and dimensional accuracy requirements, avoid the problem of easy misassembly, and solve the problem that the metal shielding parts used for electromagnetic shielding in the current automotive coaxial connector are easy to be misassembled and difficult to inspect and detect during assembly, and solve the problem that the electromagnetic signal leakage caused by the misassembly of the metal shielding parts affects the transmission of the signal and generates crosstalk. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the exploded structure of a shielding contact structure described in an embodiment of the present utility model;

[0022] Figure 2 It is a structural schematic diagram of a shielding contact structure described in an embodiment of the present utility model;

[0023] Figure 3 It is a structural schematic diagram of the outer shielding shell described in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the installation partition described in the embodiment of the utility model Figure 1 ;

[0025] Figure 5 This is a schematic diagram of the structure of the installation partition described in the embodiment of the utility model Figure 2 ;

[0026] Figure 6 It is a schematic cross-sectional view of a shielding contact structure described in an embodiment of the present utility model;

[0027] Figure 7 This is a structural diagram of an automotive coaxial connector described in an embodiment of the present utility model;

[0028] Figure 8 This is a schematic diagram of the front structure of the installation partition described in the embodiment of the utility model Figure 1 ;

[0029] Figure 9 This is a schematic diagram of the front structure of the installation partition described in the embodiment of the utility model Figure 2 ;

[0030] Figure 10 This is a schematic diagram of the front structure of the installation partition described in the embodiment of the utility model Figure 3 ;

[0031] Figure 11 Schematic diagram of the relative positions of the first groove and the fourth groove described in the embodiment of the present utility model;

[0032] Figure 12 This is a schematic diagram of the electromagnetic emission path of an automotive coaxial connector described in an embodiment of the utility model. Figure 1 ;

[0033] Figure 13 This is a schematic diagram of the electromagnetic emission path of an automotive coaxial connector described in an embodiment of the utility model. Figure 2 ;

[0034] Figure 14 This is a schematic diagram of the electromagnetic emission path of an automotive coaxial connector described in an embodiment of the utility model. Figure 3 ;

[0035] Figure 15 This is a schematic diagram of the electromagnetic emission path of an automotive coaxial connector described in an embodiment of the utility model. Figure 4 ;

[0036] Figure 16 This is a schematic diagram of the SI performance test results of an automotive coaxial connector described in an embodiment of the present utility model. Figure 1 ;

[0037] Figure 17 This is a schematic diagram of the SI performance test results of an automotive coaxial connector described in an embodiment of the present utility model. Figure 2 ;

[0038] Figure 18 This is a schematic diagram of the SI performance test results of an automotive coaxial connector described in an embodiment of the present utility model. Figure 3 ;

[0039] Figure 19 This is a schematic diagram of the SI performance test results of an automotive coaxial connector described in an embodiment of the present utility model. Figure 4 ;

[0040] Description of reference numerals:

[0041] 10-outer shielding shell, 100-mounting groove, 101-first mounting part, 102-second mounting part, 103-terminal mounting cavity, 104-first groove, 105-second groove, 106-third groove, 107-fourth groove, 108-fifth groove, 109-first limiting groove, 110-second limiting groove, 111-third limiting groove, 112-limiting plug, 113-terminal mounting tube, 114-L-shaped cavity, 20-mounting partition, 200-first boss, 201-first protrusion, 202-second boss, 203-third boss, 204-fourth boss, 205-second protrusion, 206-fifth boss, 207-first limiting rib, 208-second limiting rib, 209-limiting slot. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0043] Example:

[0044] like Figures 1 to 5As shown, in order to solve the above problems, the present embodiment discloses a shield contact structure, including an outer shield shell 10 and a mounting partition 20. The outer shield shell 10 is provided with a mounting groove 100, which runs through the front end of the outer shield shell 10. A first mounting portion 101 and a second mounting portion 102 are provided in the mounting groove 100. The first mounting portion 101 is arranged on the top of the second mounting portion 102, and the first mounting portion 101 is located at the rear end of the mounting groove 100. The mounting partition 20 can be inserted into the mounting groove 100 and contacts the first mounting portion 101 and the second mounting portion 102. The mounting partition 20 divides the mounting groove 100 into a plurality of independent terminal mounting cavities 103.

[0045] A first groove 104 is provided on the top of the first mounting portion 101. One end of the mounting partition 20 inserted into the mounting groove 100 is provided with a first boss 200 that cooperates with the first groove 104. The first boss 200 can be inserted into the first groove 104 and has a clearance fit with the first groove 104. A plurality of first protrusions 201 are provided on one side of the first boss 200. One end of the plurality of first protrusions 201 can contact the inner side wall of one side of the first groove 104.

[0046] A second groove 105 is provided on one side of the first mounting portion 101 to cooperate with the first groove 104, and a second boss 202 is provided on one end of the mounting partition 20 inserted into the mounting groove 100 to cooperate with the second groove 105. The second boss 202 is provided to cooperate with the first boss 200, and the second boss 202 can be inserted into the second groove 105 and has a clearance with the second groove 105.

[0047] The present invention provides a first boss 200 that forms a clearance fit with the first groove 104, and a second boss 202 that forms a clearance fit with the second groove 105. During use, the clearance fit between the first boss 200 and the first groove 104, and the clearance fit between the second boss 202 and the second groove 105, extends the electromagnetic induction distance between two parallel signal terminals, thereby improving the anti-crosstalk performance between the two signal terminals. Furthermore, by providing a plurality of first protrusions 201 on one side of the first boss 200, the first protrusions 201 contact the first groove 104, thereby achieving partial isolation, further improving the anti-crosstalk performance between the signal terminals. This also reduces manufacturing difficulty and dimensional accuracy requirements, avoiding the problem of improper assembly. This solves the problem of improper assembly and difficulty in inspecting and detecting metal shielding components used for electromagnetic shielding in current automotive coaxial connectors, as well as the problem of electromagnetic signal leakage caused by improper assembly of the metal shielding components, which affects signal transmission and generates crosstalk.

[0048] The first boss 200 and the first groove 104 need to be arranged in parallel, and a gap should be left between the first boss 200 and the first groove 104 after the first boss 200 is inserted into the first groove 104 .

[0049] Similarly, the second boss 202 and the second groove 105 also need to be arranged in a parallel structure with a gap therebetween.

[0050] like Figure 3 As shown, in order to further enhance the anti-crosstalk capability between the signal terminals and further reduce the manufacturing difficulty and dimensional accuracy requirements, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a third groove 106 is provided on the top of the second mounting portion 102, and one end of the mounting partition 20 inserted into the mounting groove 100 is provided with a third boss 203 which is arranged to cooperate with the third groove 106. The third boss 203 can be inserted into the third groove 106 and is loosely matched with the third groove 106.

[0051] Among them, a fourth groove 107 is provided in the third groove 106, and a fourth boss 204 is provided on the third boss 203 to cooperate with the fourth groove 107. The fourth boss 204 can be inserted into the fourth groove 107 and is loosely matched with the fourth groove 107. A number of second protrusions 205 are provided on one side of the fourth boss 204, and the number of second protrusions 205 can contact the inner side wall of one side of the fourth groove 107.

[0052] A pair of stepped fifth grooves 108 are provided in the third groove 106, and the pair of fifth grooves 108 are matched with the fourth groove 107. A pair of fifth bosses 206 are provided on the third boss 203 to match the pair of fifth grooves 108. The pair of fifth bosses 206 can be inserted into the pair of fifth grooves 108 respectively and are loosely matched with the fifth grooves 108.

[0053] During use, the clearance between the third groove 106 and the third boss 203, the clearance between the fourth groove 107 and the fourth boss 204, and the clearance between the fifth groove 108 and the fifth boss 206 can extend the electromagnetic induction distance between the two parallel signal terminals, thereby improving the anti-crosstalk performance between the two signal terminals. At the same time, by providing a plurality of second protrusions 205 on one side of the fourth boss 204, the second protrusions 205 contacting the fourth groove 107 can achieve partial isolation, further improving the anti-crosstalk performance between the signal terminals. This also reduces manufacturing difficulty and dimensional accuracy requirements, avoiding the problem of improper assembly.

[0054] Similarly, the third groove 106 and the third boss 203 , the fourth groove 107 and the fourth boss 204 , and the fifth groove 108 and the fifth boss 206 also need to be arranged in parallel with a gap therebetween.

[0055] like Figure 11 As shown, in order to further facilitate assembly and avoid improper assembly, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the first groove 104 and the fourth groove 107 are staggered, wherein the first groove 104 is located on the right side of the top of the first mounting portion 101, and the fourth groove 107 is located on the left side of the third groove 106.

[0056] For ease of understanding, Figure 11 In the embodiment, a reference axis is established, the first groove 104 is located on the right side of the reference axis, and the fourth groove 107 is located on the left side of the reference axis.

[0057] Since the first boss 200 is matched with the first groove 104 and the fourth boss 204 is matched with the fourth groove 107, the liquid level between the first boss 200 and the fourth boss 204 is staggered. This staggered structure can compensate for the size difference of the mounting partition 20 caused by manufacturing tolerance during installation, so that the mounting partition 20 can be better assembled with the outer shielding shell 10, thereby further facilitating assembly and avoiding the situation where improper assembly occurs.

[0058] like Figure 3 As shown, in order to facilitate the better assembly of the mounting partition 20 with the outer shielding shell 10, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a pair of first limiting grooves 109 are provided in the mounting groove 100, and the first limiting grooves 109 are arranged on both sides of the front end of the mounting groove 100. The two sides of the front end of the mounting partition 20 can be respectively inserted into the pair of first limiting grooves 109 and are clearance-matched with the first limiting grooves 109. A second limiting groove 110 is provided in the mounting groove 100, and the second limiting groove 110 is arranged at the rear end of the mounting groove 100 and is arranged in conjunction with the first mounting portion 101. The rear end of the mounting partition 20 can be inserted into the second limiting groove 110 and is interference-fitted with the second limiting groove 110. A pair of third limiting grooves 111 are provided in the mounting groove 100, and the third limiting grooves 111 are respectively located on both sides of the middle part of the mounting groove 100. The two sides of the middle part of the mounting partition 20 can be respectively inserted into the third limiting groove 111 and are interference-fitted with the third limiting groove 111.

[0059] Among them, a first limiting rib 207 is provided on both sides of the rear end of the installation partition 20, and the rear end of the installation partition 20 is interference fit with the second limiting groove 110 through the first limiting rib 207. A pair of second limiting ribs 208 are provided on both sides of the middle part of the installation partition 20, and the two sides of the middle part of the installation partition 20 are interference fit with the third limiting groove 111 through a pair of second limiting ribs 208.

[0060] During use, the installation partition 20 needs to correspond to the first limiting groove 109, the second limiting groove 110 and the third limiting groove 111 respectively before it can be installed. At the same time, the two sides of the front end of the installation partition 20 are respectively matched with the first limiting groove 109, and a compensation gap can be left. Then, the first limiting rib 207 is interference fit with the second limiting groove 110, and the second limiting rib 208 is interference fit with the third limiting groove 111, so that the installation partition 20 and the outer shielding shell 10 can be better assembled, thereby further avoiding the situation of improper assembly.

[0061] Among them, in order to further improve the accuracy of assembly, the second mounting part 102 is located on one side of the front end of the mounting groove 100 and is provided with a limit plug 112. The limit plug 112 is located between a pair of first limit grooves 109. The mounting partition 20 is provided with a limit slot 209 that is coordinated with the limit plug 112. When the mounting partition 20 is inserted into the mounting groove 100, the limit plug 112 can be inserted into the limit slot 209.

[0062] like Figure 6 As shown, in order to facilitate the installation of signal terminals, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a plurality of terminal mounting tubes 113 are provided at the rear end of the outer shielding shell 10, and the plurality of terminal mounting tubes 113 are connected to the mounting groove 100. When the mounting partition 20 is inserted into the outer shielding shell 10, the plurality of terminal mounting tubes 113 are respectively connected to a plurality of independent terminal mounting cavities 103 to form a plurality of independent L-shaped cavities 114 for installing signal terminals.

[0063] like Figure 7 As shown, this embodiment provides an automotive coaxial connector including the shielded contact structure described above, that is, an automotive coaxial connector using the shielded contact structure described in the above embodiment, including the shielded contact structure described above. When in use, this automotive coaxial connector can effectively avoid the problem of low anti-crosstalk performance caused by improper assembly.

[0064] like Figures 12 to 15 As shown, it can be clearly seen that:

[0065] exist Figure 12In the figure, the red dotted line is the electromagnetic emission path generated by the signal terminal. Due to the provision of the first boss 200 and the first bump 201, the first bump 201 contacts the first groove 104, thereby blocking the electromagnetic emission path.

[0066] exist Figure 13 In the figure, the purple dotted line is the electromagnetic emission path generated by the signal terminal. Due to the provision of the second protrusion 202 and the second groove 105, the electromagnetic emission path is bent, thereby lengthening the electromagnetic path.

[0067] exist Figure 14 In the figure, the blue dot-dashed line represents the electromagnetic emission path generated by the signal terminal. Due to the provision of the fourth protrusion 204 and the second protrusion 205, the second protrusion 205 contacts the fourth groove 107, thereby blocking the electromagnetic emission path.

[0068] exist Figure 15 In the figure, the rose-red dotted line is the electromagnetic emission path generated by the signal terminal, and the bold rose-red oblique line is the spatial path projection path. Due to the provision of the fifth groove 108 and the fifth boss 206, it can be clearly seen that the electromagnetic emission path is bent and the electromagnetic emission path is lengthened;

[0069] As can be seen from the above, the utility model can effectively extend the electromagnetic induction distance between two parallel signal terminals, and at the same time can achieve partial isolation, further improving the anti-crosstalk performance between the signal terminals.

[0070] In the above embodiment, the number of the first bumps 201 and the second bumps 205 can be set according to actual needs, which can be divided into three cases as follows:

[0071] like Figure 8 As shown, when both the first convex points 201 and the second convex points 205 are the maximum number, the number of the first convex points 201 is 6 and the number of the second convex points 205 is 8;

[0072] like Figure 9 As shown, when the first convex points 201 and the second convex points 205 are of an intermediate number, the number of the first convex points 201 is 3 and the number of the second convex points 205 is 5;

[0073] like Figure 10 As shown, when the number of the first convex points 201 and the second convex points 205 is the minimum, the number of the first convex point 201 is 1 and the number of the second convex point 205 is 1;

[0074] like Figure 9 As shown, preferably, the number of the first bumps 201 and the number of the second bumps 205 are intermediate, that is, the number of the first bumps 201 is 3 and the number of the second bumps 205 is 5.

[0075] In another embodiment, there is a situation in which the first protrusion 201 and the second protrusion 205 are eliminated, the first boss 200 is matched with the first groove 104 at an inclined angle, and the fourth boss 204 is matched with the fourth groove 107 at an inclined angle.

[0076] like Figures 16 to 19 In the figure, the SI performance test results of the four cases are provided for the above four cases. It can be clearly seen that the SI test results of the four cases are all lower than the red specification line. Therefore, the four structures are superior to the traditional shielded contact structure. Therefore, the use of the present invention can effectively reduce the manufacturing difficulty and dimensional accuracy requirements, and avoid the problem of improper assembly. Among them, when the first bumps 201 and the second bumps 205 are the middle number, the SI result is the best.

[0077] Working principle of this utility model:

[0078] The present invention provides a first boss 200 that forms a clearance fit with the first groove 104, and a second boss 202 that forms a clearance fit with the second groove 105. During use, the clearance fit between the first boss 200 and the first groove 104, and the clearance fit between the second boss 202 and the second groove 105, extends the electromagnetic induction distance between two parallel signal terminals, thereby improving the anti-crosstalk performance between the two signal terminals. Furthermore, by providing a plurality of first bumps 201 on one side of the first boss 200, the first bumps 201 contacting the first groove 104 to achieve partial isolation, further improving the anti-crosstalk performance between the signal terminals. This also reduces manufacturing difficulty and dimensional accuracy requirements, avoiding the problem of improper assembly.

[0079] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A shielding contact structure, characterized in that: The invention comprises an outer shielding shell (10) and a mounting partition (20), wherein the outer shielding shell (10) is provided with a mounting groove (100), the mounting groove (100) passes through the front end of the outer shielding shell (10), a first mounting portion (101) and a second mounting portion (102) are provided in the mounting groove (100), the first mounting portion (101) is arranged on the top of the second mounting portion (102), and the first mounting portion (101) is located at the rear end of the mounting groove (100), the mounting partition (20) can be inserted into the mounting groove (100), and contacts the first mounting portion (101) and the second mounting portion (102), and the mounting partition (20) divides the mounting groove (100) into a plurality of independent terminal mounting cavities (103); A first groove (104) is provided on the top of the first mounting portion (101); one end of the mounting partition (20) inserted into the mounting groove (100) is provided with a first boss (200) matched with the first groove (104); the first boss (200) can be inserted into the first groove (104) and is clearance-matched with the first groove (104); a plurality of first protrusions (201) are provided on one side of the first boss (200); one end of the plurality of first protrusions (201) can contact the inner side wall of one side of the first groove (104); A second groove (105) is provided on one side of the first mounting portion (101) and is matched with the first groove (104). One end of the mounting partition (20) inserted into the mounting groove (100) is provided with a second boss (202) matched with the second groove (105). The second boss (202) is matched with the first boss (200). The second boss (202) can be inserted into the second groove (105) and is clearance-matched with the second groove (105).

2. A shielding contact structure according to claim 1, characterized in that: A third groove (106) is provided on the top of the second mounting portion (102); one end of the mounting partition (20) inserted into the mounting groove (100) is provided with a third boss (203) matched with the third groove (106); the third boss (203) can be inserted into the third groove (106) and has a clearance fit with the third groove (106).

3. The shielding contact structure according to claim 2, characterized in that: A fourth groove (107) is provided in the third groove (106); a fourth boss (204) is provided on the third boss (203) and is matched with the fourth groove (107); the fourth boss (204) can be inserted into the fourth groove (107) and is clearance-matched with the fourth groove (107); a plurality of second protrusions (205) are provided on one side of the fourth boss (204); and the plurality of second protrusions (205) can contact the inner side wall of one side of the fourth groove (107).

4. A shielding contact structure according to claim 3, characterized in that: A pair of stepped fifth grooves (108) are provided in the third groove (106), and the pair of fifth grooves (108) are matched with the fourth groove (107). A pair of fifth bosses (206) are provided on the third boss (203) and matched with the pair of fifth grooves (108). The pair of fifth bosses (206) can be respectively inserted into the pair of fifth grooves (108) and are clearance-matched with the fifth grooves (108).

5. The shielding contact structure according to claim 4, characterized in that: The first groove (104) and the fourth groove (107) are staggered, wherein the first groove (104) is located on the right side of the top of the first mounting portion (101), and the fourth groove (107) is located on the left side of the third groove (106).

6. The shielding contact structure according to claim 5, characterized in that: A pair of first limiting grooves (109) are provided in the installation groove (100), and the first limiting grooves (109) are provided on both sides of the front end of the installation groove (100). Both sides of the front end of the installation partition (20) can be respectively inserted into the pair of first limiting grooves (109) and are clearance-matched with the first limiting grooves (109). A second limiting groove (110) is provided in the installation groove (100), and the second limiting groove (110) is provided at the rear end of the installation groove (100) and is clearance-matched with the first limiting grooves (109). The mounting portion (101) is arranged in cooperation with the mounting partition (20), the rear end of the mounting partition (20) can be inserted into the second limiting groove (110), and is interference-fitted with the second limiting groove (110), a pair of third limiting grooves (111) is provided in the mounting groove (100), and the third limiting grooves (111) are respectively located on both sides of the middle of the mounting groove (100), and the two sides of the middle of the mounting partition (20) can be respectively inserted into the third limiting grooves (111), and are interference-fitted with the third limiting grooves (111).

7. The shielding contact structure according to claim 6, characterized in that: A first limiting rib (207) is provided on both sides of the rear end of the mounting partition (20), and the rear end of the mounting partition (20) is interference-fitted with the second limiting groove (110) through the first limiting rib (207). A pair of second limiting ribs (208) are provided on both sides of the middle of the mounting partition (20), and the two sides of the middle of the mounting partition (20) are interference-fitted with the third limiting groove (111) through the pair of second limiting ribs (208).

8. The shielding contact structure according to claim 7, characterized in that: A limiting plug (112) is provided on one side of the second mounting portion (102) located at the front end of the mounting groove (100). The limiting plug (112) is located between a pair of first limiting grooves (109). A limiting slot (209) is provided on the mounting partition (20) to cooperate with the limiting plug (112). When the mounting partition (20) is inserted into the mounting groove (100), the limiting plug (112) can be inserted into the limiting slot (209).

9. The shielding contact structure according to claim 8, characterized in that: A plurality of terminal mounting tubes (113) are provided at the rear end of the outer shielding shell (10), and the plurality of terminal mounting tubes (113) are communicated with the mounting groove (100). When the mounting partition (20) is inserted into the outer shielding shell (10), the plurality of terminal mounting tubes (113) are respectively communicated with a plurality of independent terminal mounting cavities (103), forming a plurality of independent L-shaped cavities (114) for mounting signal terminals.

10. An automotive coaxial connector, characterized in that: A shielding contact structure comprising any one of claims 1 to 9.

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