Coaxial connector for vehicle-mounted camera

Abstract

The coaxial connector comprises a metal rear shell and a plugging conductive assembly, a plugging cavity is arranged on the metal rear shell, the plugging conductive assembly is composed of an inner conductor, an insulator and an outer conductor which are arranged from inside to outside, and the insulator is sintered and formed between the outer conductor and the inner conductor. The outer end of the outer conductor is upwards inserted into the insertion cavity, and the inner end of the outer conductor and the metal rear shell are welded and sealed. The utility model aims to provide the coaxial connector for the vehicle-mounted camera, which is simple in structure and good in air tightness.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted Ethernet, in particular to a coaxial connector used for a vehicle-mounted camera. Background Art

[0002] Chinese patent publication number CN220042347U discloses a connector terminal, a terminal assembly, a connector and a connector assembly. The connector terminal includes: an outer conductor including a cylindrical body; an insulator disposed in the outer conductor; and an inner conductor disposed in the insulator. In order to meet the requirements of vehicle-mounted applications, the applicant applies glass or ceramic sintering technology to the connector to improve the airtightness of the connector. Utility Model Content

[0003] In view of this, the utility model provides a coaxial connector for a vehicle-mounted camera with a simple structure and good air tightness.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A coaxial connector for a vehicle-mounted camera comprises a metal back shell and a plug-in conductive component, wherein a plug-in cavity is provided on the metal back shell, and the characteristic is that the plug-in conductive component consists of an inner conductor, an insulator and an outer conductor arranged from inside to outside, the insulator is sintered between the outer conductor and the inner conductor, the outer end of the outer conductor is inserted upward into the plug-in cavity, and the inner end of the outer conductor is welded and sealed with the metal back shell.

[0006] As described above, a coaxial connector for a vehicle-mounted camera is characterized in that: the inner end of the outer conductor is provided with an outer flange, the inner end of the plug-in cavity is connected to the inside of the metal rear shell, and the outer flange is pressed against the edge of the inner end of the plug-in cavity to limit the depth of the outer conductor inserted into the plug-in cavity.

[0007] The coaxial connector for a vehicle-mounted camera as described above is characterized in that the outer flange is laser welded to the inner end of the plug-in cavity.

[0008] The coaxial connector for a vehicle-mounted camera as described above is characterized in that the outer flange is brazed to the inner end of the plug-in cavity.

[0009] The coaxial connector for a vehicle-mounted camera as described above is characterized in that a countersunk hole is provided at the inner end of the plug-in cavity, and the outer flange is fitted to the bottom of the countersunk hole to limit the depth of the outer conductor inserted into the plug-in cavity.

[0010] As described above, a coaxial connector for a vehicle-mounted camera is characterized in that: a circle of convex edges is provided at the center of the bottom of the countersunk hole, and the convex edges are arranged around the central circumference of the plug-in cavity. The outer edge of the outer flange is bent upward to form a folded edge, and the folded edge is attached to the outer periphery of the convex edge, and an area for accommodating brazing solder is formed between the folded edge and the side wall of the countersunk hole cavity.

[0011] The coaxial connector for a vehicle-mounted camera as described above is characterized in that the insulator is a glass or ceramic sintered insulator.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The insulator is an insulator formed by sintering a glass or ceramic sintered insulator between the outer conductor and the inner conductor. The airtightness between the outer conductor and the inner conductor is higher than that of the existing plastic insulator, and the airtightness is better. At the same time, a welding seal is set between the inner end of the outer conductor and the metal back shell, so that the plug-in conductive component and the metal back shell have good airtightness, so that the connector is used for vehicle-mounted cameras, has strong adaptability, and is easy to use.

[0014] 2. A countersunk hole is provided at the inner end of the plug-in cavity, and the outer flange is fitted to the bottom of the countersunk hole to limit the depth of the outer conductor inserted into the plug-in cavity. The structure is simple and the insertion and positioning are convenient.

[0015] 3. A circle of convex edge is provided at the center of the bottom of the countersunk hole, and the convex edge is arranged around the central circumference of the plug-in cavity. The outer edge of the outer flange is bent upward to form a folded edge, and the folded edge is arranged to fit the outer periphery of the convex edge. An interval for accommodating brazing solder is formed between the folded edge and the side wall of the countersunk hole. During brazing, the outer side of the folded edge and the side wall of the countersunk hole are welded with solder, which increases the solder welding area and is beneficial to enhancing the welding firmness between the outer conductor and the metal back shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of Embodiment 1 of the present application;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of Example 1 of the present application;

[0018] Figure 3 This is a schematic diagram of the main cross-sectional structure of the plug-in conductive component in the first embodiment of the present application;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present application;

[0020] Figure 5 This is a schematic diagram of the main cross-sectional structure of the second embodiment of the present application;

[0021] Figure 6 This is a schematic diagram of the main cross-sectional structure of the plug-in conductive component in the second embodiment of the present application;

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure of the third embodiment of the present application;

[0023] Figure 8 This is a schematic diagram of the main cross-sectional structure of Embodiment 3 of the present application;

[0024] Fig. 9 This is a schematic diagram of the three-dimensional structure of the fourth embodiment of the present application;

[0025] Fig.10 This is a schematic diagram of the main cross-sectional structure of the fourth embodiment of the present application;

[0026] Fig.11 This is a schematic diagram of the three-dimensional structure of Embodiment 5 of the present application;

[0027] Fig.12 This is a schematic diagram of the main cross-sectional structure of Embodiment 5 of the present application;

[0028] Fig.13 This is a schematic diagram of the three-dimensional structure of the sixth embodiment of the present application;

[0029] Fig.14 This is a schematic diagram of the main cross-sectional structure of Example 6 of the present application.

[0030] In the figure: 1-metal back shell; 11-insertion cavity; 111-counterbore; 112-convex edge; 21-outer conductor; 211-outer flange; 212-folded edge; 22-insulator; 23-inner conductor; 24-metal sleeve; 3-tin wire. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] See also Figures 1 to 14 As shown, a coaxial connector for a vehicle-mounted camera includes a metal rear shell 1 and a plug-in conductive component.

[0033] In the present application, the metal back shell 1 for the vehicle-mounted camera is the prior art, and the metal back shell 1 is provided with a plug-in cavity 11, the inner end of the plug-in cavity 11 is connected to the inside of the metal back shell 1, and the plug-in cavity 11 is used to plug in the wiring harness and the conductive component. The change of the appearance structure of the metal back shell 1 is not a limitation to the protection of the present application.

[0034] In the present application, the plug-in conductive assembly is composed of an inner conductor 23, an insulator 22 and an outer conductor 21 arranged from inside to outside, and the insulator 22 is an insulator formed by sintering glass or ceramic. The inner conductor 23 is made of expansion alloy, and the outer conductor 21 is made of nickel-based high-temperature alloy. The insulator 22 is sintered between the outer conductor 21 and the inner conductor 23, and compressive stress is more easily generated between the glass or ceramic and the inner conductor 23 and the outer conductor 21, thereby improving the microscopic bonding degree of the glass or ceramic and the metal to each other, and greatly reducing the possibility of leakage during the sintering process or the use process.

[0035] The outer conductor 21 is in a hollow cylindrical shape, the outer end of the outer conductor 21 is inserted upward into the plug-in cavity 11, and the inner end of the outer conductor 21 is welded and sealed to the metal rear shell 1.

[0036] To facilitate positioning of the insertion depth of the outer conductor 21 , in the embodiment of the present application, an outer flange 211 is provided at the inner end of the outer conductor 21 , and the outer flange 211 is pressed against the inner end edge of the insertion cavity 11 to limit the insertion depth of the outer conductor 21 into the insertion cavity 11 .

[0037] like Figures 1 to 6 The first and second embodiments shown in FIG. Fig.11 and Fig.12 In the fifth embodiment shown, the outer flange 211 is brazed to the inner end of the plug-in cavity 11, and its specific implementation structure is as follows: a countersunk hole 111 is provided at the inner end of the plug-in cavity 11, and the bottom of the countersunk hole 111 is penetrated by the central through hole of the plug-in cavity 11. The outer conductor 21 is inserted into the plug-in cavity 11 through the central through hole at the bottom of the countersunk hole 111 until the outer flange 211 is attached to the bottom of the countersunk hole 111 to limit the depth of the outer conductor 21 inserted into the plug-in cavity 11.

[0038] like Figure 7 and Figure 8 The third embodiment shown, as Fig. 9 and Fig.10 The fourth embodiment shown is as follows: Fig.13 and Fig.14 In the sixth embodiment shown, a circle of convex edge 112 is provided at the center of the bottom of the countersunk hole 111, and the convex edge 112 is arranged around the outer circumference of the central through hole of the plug-in cavity 11. The outer flange 211 is arranged horizontally, and the outer edge of the outer flange 211 is bent upward to form a folded edge 212. The folded edge 212 is arranged to fit the outer periphery of the convex edge 112, and an area for accommodating brazing solder is formed between the folded edge 212 and the side wall of the countersunk hole 111. During brazing, the outer side of the folded edge 212 and the side wall of the plug-in cavity 1 are both brazed and welded, which increases the solder welding area and is beneficial to enhancing the welding firmness between the outer conductor 21 and the metal back shell 1.

[0039] like Fig. 9 and Fig.10In the fourth embodiment shown, the inner wall of the outer end of the outer conductor 21 is welded or riveted to hold the metal sleeve 24, which reduces the inner diameter of the outer end of the inner conductor 21 and is applied to a plug port of corresponding specifications, so that the outer conductor 21 is tightly plugged into the plug on another connector.

[0040] like Figures 11 to 14 In the fifth and sixth embodiments shown, the outer end of the outer conductor 21 has a smaller diameter than the inner end. To keep the outer diameters of both ends consistent, the outer end of the outer conductor 21 is welded or riveted to the outer wall to secure the metal sleeve 24 so that the outer conductor 21 is tightly plugged into the metal rear shell 1.

[0041] The soldering adopts tin wire 3, solder paste or other solder. In addition to soldering, a more environmentally friendly welding process can also be adopted, such as laser welding the outer edge of the outer flange 211 of the inner end of the outer conductor 21 to the inner end of the plug cavity 11.

[0042] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A coaxial connector for a vehicle-mounted camera, comprising a metal rear shell (1) and a plug-in conductive component, wherein the metal rear shell (1) is provided with a plug-in cavity (11), characterized in that: The plug-in conductive component is composed of an inner conductor (23), an insulator (22), and an outer conductor (21) arranged from inside to outside, the insulator (22) is sintered between the outer conductor (21) and the inner conductor (23), the outer end of the outer conductor (21) is inserted upward into the plug-in cavity (11), and the inner end of the outer conductor (21) is welded and sealed to the metal rear shell (1).

2. A coaxial connector for a vehicle-mounted camera according to claim 1, characterized in that: The inner end of the outer conductor (21) is provided with an outer flange (211), the inner end of the plug-in cavity (11) is connected to the interior of the metal rear shell (1), and the outer flange (211) is pressed against the inner end edge of the plug-in cavity (11) to limit the insertion depth of the outer conductor (21) into the plug-in cavity (11).

3. A coaxial connector for a vehicle-mounted camera according to claim 2, characterized in that: The outer flange (211) is laser welded to the inner end of the insertion cavity (11).

4. A coaxial connector for a vehicle-mounted camera according to claim 2, characterized in that: The outer flange (211) is brazed to the inner end of the insertion cavity (11).

5. A coaxial connector for a vehicle-mounted camera according to claim 2 or 4, characterized in that: A countersunk hole (111) is provided at the inner end of the plug-in cavity (11), and an outer flange (211) is fitted on the bottom of the countersunk hole (111) to limit the depth of the outer conductor (21) inserted into the plug-in cavity (11).

6. A coaxial connector for a vehicle-mounted camera according to claim 5, characterized in that: A convex edge (112) is provided at the center of the bottom of the countersunk hole (111), and the convex edge is arranged around the central circumference of the plug-in cavity (11). The outer edge of the outer flange (211) is bent upward to form a folded edge (212), and the folded edge (212) is attached to the outer periphery of the convex edge (112), and a space for accommodating brazing solder is formed between the folded edge (212) and the side wall of the countersunk hole (111).

7. A coaxial connector for a vehicle-mounted camera according to claim 1, characterized in that: The insulator (22) is a glass or ceramic sintered insulator.

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