Vehicle-mounted camera rear shell connector

Abstract

The utility model discloses a rear shell connector of a vehicle-mounted camera. The rear shell connector comprises a rear shell, a butt joint and a plug connector, the rear shell is provided with a panel-shaped cavity and a mounting hole, the butt joint is assembled in a positioning groove of an outer panel of the rear shell, and the plug connector is inserted into the mounting hole through a butt joint opening of the butt joint. The connector clip adopts a combined structure of a hollow sleeve conductor and a central conductor wrapped by a coaxial insulating medium, an annular limiting table and a dotting rib are arranged on the outer surface of the sleeve conductor, and the dotting rib sequentially penetrates through the butt joint and the mounting hole and then is riveted and fixed with the inner wall of the rear shell. According to the utility model, the butt joint and the rear shell are separated through the split design, and the dotting rib riveting process of the sleeve conductor is combined, so that the assembly process is simplified, the die cost is reduced, the retention force of the butt joint is improved, the insertion and extraction falling is effectively prevented, the traditional integrated limitation is broken through, and the maximization of a guide opening at the tail part of the sleeve conductor is ensured; the butt joint efficiency with a camera circuit board end connector is remarkably improved, and the requirement for high reliability of a vehicle-mounted environment can be met.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connector technology, and in particular relates to a connector for the rear shell of a vehicle camera. Background Technology

[0002] Currently, most cars are equipped with in-vehicle cameras. An in-vehicle camera is an image acquisition device installed in a car to monitor the surrounding environment, offering advantages such as convenient reversing, driving recording, and real-time observation of the interior and exterior environment. An in-vehicle camera typically includes a front housing, a lens and circuit board installed inside the front housing, and a rear housing connector that mates with the front housing. One end of the rear housing connector connects to a mating terminal on the circuit board for conductive connection, while the other end connects to an external vehicle wiring harness for electrical connection, thereby receiving data collected by the in-vehicle camera or controlling the in-vehicle camera.

[0003] However, most existing vehicle camera FAKRA heads and rear shells are integrated, forged from aluminum alloy. The complex structure of the FAKRA head leads to a complex forging mold, resulting in a short mold lifespan. Furthermore, after forging, CNC machining of features such as holes is required, making the process complex, the production cycle long, and the production cost high. The difference between a separate and integrated FAKRA head lies in the material used. A separate FAKRA head uses plastic, manufacturing the head and rear shell separately before assembling to reduce costs. The mainstream connection method typically uses spring clips or snap-fit ​​structures for fixation, but the connection is not secure enough, and the structure is complex. The guide opening at the tail of the sleeve conductor has a limited opening size. When the sleeve conductor mates with the board-end connector on the camera circuit board, it can cause difficulty in aligning the camera cable or plug during installation. Installers need to repeatedly adjust the alignment angle, which is time-consuming and laborious, and may even damage the connector interface due to improper force, reducing installation efficiency and increasing the risk of rework. Utility Model Content

[0004] The purpose of this invention is to design a vehicle camera rear housing connector to precisely and securely connect the plastic FAKRA head to the metal rear housing while ensuring that the sleeve conductor has a sufficiently large guide opening at the tail.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A vehicle-mounted camera rear housing connector includes a rear housing with a panel-shaped cavity and a mounting hole, a mating connector mounted on a pre-set positioning groove on the outer surface of the rear housing, and a plug-in component inserted into the mating interface of the mating connector and passing through the mounting hole; the plug-in component includes a hollow sleeve conductor and a center conductor coaxially held within the sleeve conductor by an insulating medium; the outer surface of the sleeve conductor is formed with an annular limiting platform for pressing and fixing the mating connector and a plurality of dotting ribs parallel to the axis of the sleeve conductor, the ends of the dotting ribs passing through the mating connector and the mounting hole in sequence and being riveted and fixed to the inner wall of the rear housing.

[0007] Furthermore, the connector has a limiting protrusion formed inside for abutting against the annular limiting platform, and both the limiting protrusion and the mounting hole have multiple grooves for the dotting ribs to pass through.

[0008] Furthermore, the connector is a Fakra connector that directly mates with the Fakra female end of the vehicle body wiring harness.

[0009] Furthermore, the sleeve conductor includes a mating cylinder portion for electrical contact with the outer conductor of the Fakra female end of the vehicle body wiring harness and a mounting and fixing portion for connection with the board end connector on the camera circuit board. The outer diameter of the mounting and fixing portion is larger than the outer diameter of the mating cylinder portion, and the annular limiting platform is formed on the outer surface of the mounting and fixing portion and is close to one end of the mating cylinder portion.

[0010] Furthermore, the inner diameter of the mounting and fixing part is larger than the inner diameter of the docking cylinder part, and the guide opening of the mounting and fixing part is also provided with an outwardly expanding inner chamfer.

[0011] Furthermore, the bottom of the connector is provided with a positioning plate that matches the shape of the positioning groove.

[0012] Furthermore, the inner wall of the mounting hole of the rear shell is provided with a ring of outwardly protruding sealing cylinder, so that a sealing groove is formed between the rear shell and the sleeve conductor.

[0013] Furthermore, the sealing groove and the joint between the sleeve conductor and the center conductor are also filled with sealant.

[0014] Compared with the prior art, the beneficial technical effects of the vehicle camera rear housing connector provided by this utility model are as follows:

[0015] This utility model separates the connector from the back shell through a split design. Combined with the dotted rib riveting process of the sleeve conductor, the connector is tightly pressed onto the back shell, which effectively simplifies the assembly process, reduces the cost of the back shell, improves the molding quality of the back shell, provides sufficient holding force for the connector, prevents the connector from falling off the back shell during the pulling process, and has a simple structure. It also ensures that the tail of the sleeve conductor has a large guide opening, which improves the connection efficiency with the board-end connector on the camera circuit board. Attached Figure Description

[0016] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of a vehicle-mounted camera rear housing connector provided in this embodiment of the utility model. Figure 1 ;

[0018] Figure 2 A schematic diagram of the structure of a vehicle-mounted camera rear housing connector provided in this embodiment of the utility model. Figure 2 ;

[0019] Figure 3 A cross-sectional view of a vehicle-mounted camera rear housing connector provided for an embodiment of this utility model;

[0020] Figure 4 An explosion of a vehicle-mounted camera rear housing connector provided in this embodiment of the utility model. Figure 1 ;

[0021] Figure 5 An explosion of a vehicle-mounted camera rear housing connector provided in this embodiment of the utility model. Figure 2 ;

[0022] Figure 6 A schematic diagram of the sleeve conductor in a vehicle camera rear housing connector provided for an embodiment of this utility model;

[0023] Figure 7 This is a schematic diagram of the connector structure in the rear shell connector of a vehicle camera, provided as an embodiment of the present invention.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1-Rear shell, 101-Outer panel, 102-Positioning groove, 103-Mounting hole, 104-Sealing cylinder, 2-Connector, 201-Limiting protrusion, 202-Groove, 203-Positioning insert, 204-Snap fastener, 205-Positioning plate, 3-Sleeve conductor, 301-Dating cylinder part, 302-Mounting and fixing part, 303-Annular limiting platform, 304-Dotting rib, 305-Guide opening, 4-Center conductor, 5-Insulating medium, 6-Sealant. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] This utility model embodiment provides a vehicle-mounted camera rear housing connector, including a rear housing 1, a connector 2, and a plug-in component. Specifically:

[0028] like Figures 1 to 5 As shown, the rear shell 1 is made of metal and has a panel-shaped cavity, which can effectively eliminate electromagnetic interference, play a shielding role, and improve the quality of signal transmission. The outer panel 101 of the rear shell 1 has a positioning groove 102 with a certain depth, and the positioning groove 102 has a mounting hole 103 in the middle for subsequent installation of connectors.

[0029] In this embodiment, the connector 2 is an integrally injection-molded Fakra connector. The Fakra connector, as a connector directly mating with the Fakra female end of the vehicle body wiring harness, has a positioning insert 203 and a snap fastener 204 on its outer side wall. Furthermore, the insertion end of the connector 2 (i.e., the end furthest from the rear housing 1) also has an inner chamfer. The positioning insert 203 and the inner chamfer provide positioning and guidance during connector mating, thereby ensuring connector mating accuracy. The snap fastener 204 allows the Fakra connector to engage with the Fakra female end of the vehicle body wiring harness, ensuring reliable connection of the camera rear housing connector. A positioning plate 205 is integrally formed at the bottom of the connector 2. The shape of the positioning plate 205 matches the shape of the positioning groove 102. The connector 2 is embedded in the outer panel 101 of the rear housing 1 via the positioning plate 205. In order to axially limit the connector 2, a limiting protrusion 201 is also provided on the inner wall of the fixed end of the Fakra head (i.e. the end near the rear shell 1) to provide sufficient holding force to prevent the connector 2 from falling out of the rear shell 1 during the pulling process.

[0030] like Figures 3 to 5 As shown, the connector includes a hollow sleeve conductor 3, a central conductor 4 extending along the axial direction in the hollow internal space, and an insulating medium 5 disposed between the two conductors to hold the sleeve conductor 3 and the central conductor 4 together.

[0031] like Figure 6 As shown, the sleeve conductor 3 is a zinc die-cast component manufactured as a single piece using die casting. As the outer conductor of the coaxial connector, it provides effective electromagnetic shielding for internal signal transmission. The sleeve conductor 3 is inserted into the mating interface of the connector 2 and passes through the mounting hole 103, including a mating sleeve portion 301 and a mounting fixing portion 302. The mating sleeve portion 301 is located inside the connector 2 outside the rear housing 1 and is used for electrical contact with the outer conductor of the Fakra female terminal of the vehicle body wiring harness. The outer diameter of the mounting fixing portion 302 is larger than the outer diameter of the mating sleeve portion 301, and it is connected to the board-end connector on the camera circuit board. An annular limiting platform 303 is formed on the outer surface of the mounting fixing portion 302 near the end of the mating sleeve portion 301. The annular limiting platform 303 is located between the mating sleeve portion 301 and the mounting fixing portion 302 and can abut against the limiting protrusion 201 inside the connector 2, thereby axially limiting the connector 2. The annular limiting platform 303 extends toward the mounting and fixing part 302 of the sleeve conductor 3 to form a dotting rib 304. There are four dotting ribs 304, which are evenly arranged circumferentially and parallel to the axis of the sleeve conductor 3.

[0032] like Figure 7 As shown, correspondingly, the limiting protrusion 201 inside the connector 2 and the mounting hole 103 of the rear shell 1 are both circumferentially provided with multiple grooves 202 for the dotting ribs 304 to pass through. During assembly, the ends of the dotting ribs 304 pass through the grooves 202 on the limiting protrusion 201 and the mounting hole 103 in sequence, restricting the circumferential rotation of the sleeve conductor 3. By riveting the ends of the dotting ribs 304 to the inner wall of the rear shell 1, the connector 2 can be pressed and fixed onto the metal rear shell 1. By adopting this fixing method, the connection stability and mechanical strength between the connector 2, the plug-in part and the rear shell 1 can be enhanced, ensuring that the three will not easily separate or loosen during use. It can also ensure that the tail of the mounting and fixing part 302 has a large guide opening 305 (that is, the inner diameter of the mounting and fixing part 302 is larger than the inner diameter of the docking cylinder part 301). In addition, the guide opening 305 of the mounting and fixing part 302 is provided with an outwardly expanding inner chamfer, so as to better connect with the board end connector on the camera circuit board.

[0033] To prevent the connector from loosening and leaking after repeated insertion and removal, and to improve the connector's sealing performance, in a preferred embodiment, the inner wall of the mounting hole 103 of the rear shell 1 is further provided with an outwardly protruding sealing cylinder 104, forming a sealing groove between the rear shell 1 and the sleeve conductor 3. The sealing groove and the joint between the sleeve conductor 3 and the center conductor 4 are filled with sealant 6 to seal the joint gap between the rear shell 1 and the sleeve conductor 3, and the joint gap between the insulating medium 5 and the sleeve conductor 3 and the center conductor 4. The sealant 6 is applied using a dispensing process to seal the joints, which is not only more efficient than a sealing ring, but also allows for more comprehensive contact with the gaps, resulting in better waterproofing.

[0034] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A vehicle-mounted camera rear housing connector, comprising a rear housing (1) having a panel-shaped cavity and a mounting hole (103), a connector (2) mounted on a pre-set positioning groove (102) on the outer panel (101) of the rear housing (1), and a plug-in inserting from the connector (2) and passing through the mounting hole (103); characterized in that: The connector includes a hollow sleeve conductor (3) and a center conductor (4) coaxially held within the sleeve conductor (3) by an insulating medium (5); the outer surface of the sleeve conductor (3) is formed with an annular limiting platform (303) for pressing and fixing the connector (2) and a plurality of dotting ribs (304) parallel to the axis of the sleeve conductor (3); the ends of the dotting ribs (304) pass through the connector (2) and the mounting hole (103) in sequence and are riveted to the inner wall of the rear shell (1).

2. The vehicle-mounted camera rear housing connector according to claim 1, characterized in that: The connector (2) has a limiting protrusion (201) inside for abutting against the annular limiting platform (303). Both the limiting protrusion (201) and the mounting hole (103) have multiple grooves (202) for the dotting rib (304) to pass through.

3. The vehicle-mounted camera rear housing connector according to claim 1, characterized in that: The connector (2) is a Fakra connector that directly mates with the Fakra female end of the vehicle body wiring harness.

4. The vehicle-mounted camera rear housing connector according to claim 3, characterized in that: The sleeve conductor (3) includes a docking sleeve portion (301) for electrical contact with the outer conductor of the Fakra female end of the vehicle body wiring harness and a mounting and fixing portion (302) for connection with the board end connector on the camera circuit board. The outer diameter of the mounting and fixing portion (302) is larger than the outer diameter of the docking sleeve portion (301). The annular limiting stage (303) is formed on the outer surface of the mounting and fixing portion (302) and near one end of the docking sleeve portion (301).

5. A vehicle-mounted camera rear housing connector according to claim 4, characterized in that: The inner diameter of the mounting and fixing part (302) is larger than the inner diameter of the docking cylinder part (301), and the guide opening (305) of the mounting and fixing part (302) is also provided with an outwardly expanding inner chamfer.

6. The vehicle-mounted camera rear housing connector according to claim 1, characterized in that: The bottom of the connector (2) is provided with a positioning plate (205) that matches the shape of the positioning groove (102).

7. A vehicle-mounted camera rear housing connector according to claim 1, characterized in that: The inner wall of the mounting hole (103) of the rear shell (1) is also provided with a ring of outwardly protruding sealing cylinder (104) so ​​that a sealing groove is formed between the rear shell (1) and the sleeve conductor (3).

8. A vehicle-mounted camera rear housing connector according to claim 7, characterized in that: The sealing groove and the joint between the sleeve conductor (3) and the center conductor (4) are also filled with sealant (6).

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