Novel vehicle-mounted connector

Abstract

The utility model discloses a novel vehicle-mounted connector, which comprises a plug connector and an external shell, and is characterized in that the plug connector comprises a hollow sleeve conductor, a central conductor and an insulating medium, the central conductor extends in the hollow internal space along the axis direction, and the insulating medium is arranged between the two conductors and enables the two conductors to be mutually kept; the outer shell comprises a butt joint part with a butt joint cavity and a rear shell part in the shape of a panel cavity. Wherein the butt joint part and the rear shell part are mutually independent parts, and a surface joint part is arranged on the contact surface of the rear shell part and the butt joint part and used for fixing the rear shell part, the butt joint part and the plug connector together. According to the utility model, the butt joint part and the rear shell part are separated, and the butt joint part and the sleeve conductor are combined into a whole, so that the cost of the rear shell is greatly reduced, and the forming quality of the rear shell part is improved; and meanwhile, the connector is large in retaining force and good in waterproofness, and the competitiveness of the product in the market is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric connectors, and in particular relates to a novel vehicle-mounted connector. Background Art

[0002] At present, most cars are equipped with on-board cameras, which are image acquisition devices installed on cars and used to monitor the surrounding environment. They have the advantages of convenient reversing, driving records, and real-time observation of the environment inside and outside the car. On-board cameras generally include a front shell, a lens and a circuit board installed inside the front shell, and a rear shell connector that matches the front shell. One end of the rear shell connector is connected to the matching end on the circuit board to achieve conductive connection, and the other end of the rear shell connector is connected to the external vehicle wiring harness to achieve electrical connection, thereby receiving data collected by the on-board camera or controlling the on-board camera.

[0003] However, the Fakra head and the back shell of the existing vehicle-mounted camera are mostly integrated and forged from aluminum alloy materials. For example, the new vehicle-mounted connector with publication number CN218525802U has a complex structure of the Fakra head, which leads to a complex structure of the forging die and a low service life of the die. Moreover, after the forging is completed, the holes and other features need to be CNC processed, which has a complex process flow, a long production cycle and a high production cost. Another example is a car camera connector with publication number CN219554002U applied by our company last year. The metal shell is formed separately, and then the Fakra head is fixed to the metal shell by injection molding. Although it reduces the difficulty of forming and saves costs to a certain extent, it mainly relies on the second limit block on the outer conductor for limit, which is not only inconvenient to assemble, but also the retention force of the Fakra head is weak, the plugging and unplugging force it can withstand is small, and the service life is short.

[0004] With the price reduction of new energy vehicles in the current market, the competition in the automobile market is becoming increasingly fierce. As an important part of the automotive electronic system, the cost control of various vehicle connectors has always been an important factor affecting the total vehicle cost. Only by optimizing the structure and process of various parts of the automobile and reducing the production cost can the demands of automobile manufacturers to improve the cost performance of products be better met. Therefore, it is urgent to further optimize and improve the existing new vehicle connectors and develop a new vehicle connector with stronger processability and lower manufacturing and assembly costs, so as to ensure product performance while better adapting to the fierce market environment in the future and enhance the competitiveness of products in the market. Utility Model Content

[0005] The purpose of the utility model is to further optimize and improve the existing new vehicle-mounted connector to ensure product performance while further reducing production costs and improving assembly efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A novel vehicle-mounted connector comprises at least: a plug connector, comprising a hollow sleeve conductor, a center conductor extending in the axial direction of the hollow inner space, and an insulating medium arranged between the two conductors to hold the two conductors to each other; an external shell, comprising a docking part having a docking cavity and a rear shell part in the shape of a panel cavity; wherein the docking part and the rear shell part are independent parts, and a surface joint portion is provided on the contact surface between the rear shell part and the docking part, for fixing the rear shell part, the docking part and the plug connector together.

[0008] Furthermore, the butt joint portion and the sleeve conductor are an integral piece, so that the butt joint portion and the connector form a whole.

[0009] Furthermore, the surface joint portion is a through hole, and the integral piece consisting of the plug-in component and the docking portion is installed and fixed on the through hole.

[0010] Furthermore, the butting portion and the sleeve conductor are formed into an integrally formed part through an insert injection molding process.

[0011] Furthermore, the docking part is a hollow structure, including a docking tube part with a docking cavity therein and a base part located at the bottom of the docking tube part and provided with a limiting boss on the outer periphery; the through hole side wall of the rear shell part is also provided with an annular limiting groove arranged along the through hole, which is used to stop and limit with the limiting boss; the sleeve conductor includes a cylindrical part with one end protruding into the docking cavity and a limiting arm part extending outward from the middle position of the cylindrical part and arranged perpendicular to the cylindrical part, the central conductor and the insulating medium are accommodated in the cylindrical part, and the limiting arm part stops on the bottom of the base part.

[0012] Furthermore, the butting portion and the sleeve conductor are constructed as an integral zinc die-cast component.

[0013] Furthermore, the metal integral part composed of the docking part and the sleeve conductor includes a docking part provided with a docking cavity, a fixed installation part provided with a limiting boss on the outer periphery, and a hollow sleeve main body; one end of the sleeve main body protrudes into the docking cavity, and the other end thereof extends straight toward the inner side of the rear shell part, and the center conductor and the insulating medium are accommodated in the sleeve main body; the through hole side wall of the rear shell part is also provided with an annular limiting groove arranged along the through hole, which is used to stop with the limiting boss for limiting.

[0014] Furthermore, one end of the sleeve conductor located in the rear shell portion expands outwardly in the circumferential direction to form a floating chamber, and a floating head is installed in the floating chamber.

[0015] Furthermore, the floating head includes a floating outer conductor made of an elastic metal sheet and a floating center conductor fixed in the floating outer conductor in a coaxial configuration through a floating insulator.

[0016] Furthermore, the joining gap between the plug-in component and the rear shell portion, and the joining gap between the insulating medium and the sleeve conductor are filled with sealant.

[0017] Compared with the prior art, the novel vehicle-mounted connector provided by the utility model has the following beneficial technical effects:

[0018] The utility model separates the butt joint part from the rear shell part and combines the butt joint part and the sleeve conductor into a whole, which not only greatly reduces the cost of the rear shell and improves the molding quality of the rear shell part, but also effectively simplifies the assembly process and improves production efficiency. At the same time, the connector has a large holding force and good waterproof performance, which greatly improves the competitiveness of the product in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of a novel vehicle-mounted connector provided in Embodiment 1 of the utility model;

[0021] Figure 2 A cross-sectional view of a novel vehicle-mounted connector provided in Embodiment 1 of the present utility model;

[0022] Figure 3 An exploded view of a novel vehicle-mounted connector provided in Embodiment 1 of the utility model;

[0023] Figure 4 A schematic structural diagram of a rear shell portion of a novel vehicle-mounted connector provided in Embodiment 1 of the utility model;

[0024] Figure 5 A schematic diagram of the structure of a novel vehicle-mounted connector provided in Embodiment 1 of the present utility model after the butt joint part and the sleeve conductor form an integrally formed part;

[0025] Figure 6 A cross-sectional view of a novel vehicle-mounted connector provided in Embodiment 2 of the present utility model;

[0026] Figure 7A cross-sectional view of a novel vehicle-mounted connector provided in Embodiment 3 of the present utility model;

[0027] Figure 8 This is an exploded view of a floating head in a novel vehicle-mounted connector provided in Example 3 of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1-rear shell part, 101-through hole, 102-limiting groove, 103-limiting tooth, 2-docking part, 201-docking tube part, 2011-positioning insert, 2012-buckle, 202-base part, 203-docking part, 3-sleeve conductor, 301-cylindrical part, 302-limiting arm part, 303-sleeve body part, 304-fixed installation part, 305-floating chamber, 306-fixed slot, 4-center conductor, 5-insulating medium, 6-floating outer conductor, 601-flexible claw, 602-limiting baffle, 603-elastic contact piece, 7-floating center conductor, 701-center jack, 8-floating insulator, 9-sealant. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1:

[0032] The embodiment of the utility model provides a new type of vehicle-mounted connector, including a plug-in connector and an external shell, wherein the plug-in connector includes a hollow sleeve conductor 3, a center conductor 4 extending in the axial direction of the hollow internal space, and an insulating medium 5 arranged between the two conductors to hold the two conductors to each other; the external shell includes a docking portion 2 having a docking cavity and a rear shell portion 1 in the shape of a panel cavity. The docking portion 2 and the rear shell portion 1 are independent parts, and a surface joint portion is provided on the contact surface between the rear shell portion 1 and the docking portion 2 to fix the rear shell portion 1, the docking portion 2 and the plug-in connector together. Specifically:

[0033] like Figure 4As shown, the rear shell part 1 is made of metal material, which can effectively eliminate electromagnetic, play a shielding role, and improve the quality of signal transmission. The surface joint part of the rear shell part 1 is a through hole 101, so that the integral part composed of the plug-in component and the docking part 2 can be installed and fixed on the through hole 101. In addition, in order to ensure the waterproofness and retention force of the docking part 2, at least one layer of annular limiting grooves 102 (i.e., hanging platforms) and limiting teeth 103 matched with the limiting grooves 102 are also arranged on the side wall of the through hole 101 inside the rear shell part 1. Through the limiting grooves 102 and the limiting teeth 103, the docking part 2 can be axially limited, and sufficient retention force is provided to prevent the docking part 2 from falling off from the rear shell part 1 during the pulling process.

[0034] like Figure 5 As shown, the docking part 2 and the sleeve conductor 3 are an integral part, so that the docking part 2 and the connector are formed into a whole. Specifically in this embodiment, the docking part 2 and the sleeve conductor 3 are formed into an integral part by an insert injection molding process. The docking part 2 is a hollow structure, including a docking barrel part 201 with a docking cavity and a base part 202 located at the bottom of the docking barrel part 201 and provided with a limiting boss on the outer periphery; the docking barrel part 201 is a Fakra head, and the Fakra head is used as a connector that is directly paired with the Fakra female end of the vehicle body wiring harness. A positioning strip 2011 and a buckle 2012 are provided on the outer wall thereof, and the plug-in end of the docking barrel part 201 is also provided with an inner chamfer, and the plug-in end of the sleeve conductor 3 is provided with an outer chamfer. The positioning strip 2011 and the inner and outer chamfers can play a positioning and guiding role when the connectors are plugged in, thereby ensuring the plug-in accuracy of the connectors. The buckle 2012 can be used to engage the docking tube 201 with the Fakra female end of the vehicle body harness, ensuring reliable connection of the camera rear cover connector. The limiting boss of the base 202 is stepped, and its size matches the limiting groove 102, and can be stopped in the limiting groove 102 on the rear shell part 11 for limiting.

[0035] The sleeve conductor 3 is used to improve the electromagnetic shielding performance of the connector, and includes a cylindrical portion 301 and a limiting arm portion 302. Among them, one end of the cylindrical portion 301 protrudes into the docking cavity, and the other end extends toward the inner side of the rear shell, which is used to connect with the board-end connector on the camera circuit board. The limiting arm portion 302 extends from the middle position of the cylindrical portion 301 to the outer circumference and is perpendicular to the cylindrical portion 301. The center conductor 4 and the insulating medium 5 are accommodated in the cylindrical portion 301. The limiting arm portion 302 stops at the bottom of the base portion 202, which not only increases the contact area between the docking portion 2 and the sleeve conductor 3, ensuring the connection strength between the two, but also covers the gap between the sleeve conductor 3 and the rear shell portion 1, reducing the interference of external signals on the camera back cover connector.

[0036] like Figures 1 to 3 As shown, during installation, it is only necessary to first assemble the central conductor into the sleeve conductor 3 through the insulating medium, and then form the docking sleeve part 201 in one piece at the insertion end of the sleeve conductor 3 by using the insert injection molding process, and then insert the docking sleeve part 201 from one side of the inner wall of the rear shell part 1, pass through the through hole 101, and embed the limiting boss into the limiting groove 102, so that the docking part 2 is located outside the rear shell, and the connector can be installed on the rear shell. Compared with integrally forming the docking sleeve part 201 on the rear shell and then installing the outer conductor, the utility model simplifies the complexity of the forging die of the rear shell part 1 by forming the docking sleeve part 201 and the sleeve conductor into a whole, and greatly reduces the production cost of the rear shell part 1.

[0037] The center conductor 4 is used as the inner conductor of the connector to transmit signals. The center conductor 4 is made of brass and is coaxially arranged in the sleeve conductor 3. The insulating medium 5 is filled between the center conductor 4 and the sleeve conductor 3, and the two ends of the center conductor 4 are exposed outside the insulating medium 5. In addition, the inner wall of the sleeve conductor 3 is provided with anti-slip protrusions, and the center conductor 4 is provided with barbs, so that the insulating medium 5 can fix the relative position between the center conductor 4 and the sleeve conductor 3 more firmly.

[0038] like Figure 2 and Figure 3As shown, further, the joint gap between the plug-in component and the rear shell part 1, and the joint gap between the insulating medium 5 and the sleeve conductor 3 are also filled with sealant 9. In addition, since the docking part 2 and the sleeve conductor 3 are made of different materials in this embodiment, in order to prevent the sealing between the two from being affected by thermal expansion and contraction, the joint gap between the docking sleeve part 201 and the sleeve conductor 3 is also filled with sealant 9. The sealant 9 uses a dispensing process to seal the joint. Compared with the sealing ring, it not only has higher production efficiency, but also can be more fully in contact with the gap, and has a better sealing and waterproofing effect.

[0039] Embodiment 2:

[0040] like Figure 6 As shown, compared with the first embodiment, the difference is that in this embodiment, the docking part 2 and the sleeve conductor 3 are made of the same material, both of which are zinc alloys, and the docking part 2 and the sleeve conductor 3 are made into an integral zinc die-casting component by die-casting. The metal integral part composed of the docking part 2 and the sleeve conductor 3 includes a docking portion 203, a fixed installation portion 304 and a hollow sleeve body 303. Among them, the docking portion 203 is provided with a docking cavity for matching with the Fakra female end of the vehicle body wiring harness, and the outer periphery of the fixed installation portion 304 is provided with a limiting boss; one end of the sleeve body 303 protrudes into the docking cavity, and the other end thereof extends straight toward the inner side of the rear shell part 1, and the center conductor 4 and the insulating medium 5 are accommodated in the sleeve body 303. Similarly, at least one layer of limiting grooves 102 is also provided on the side wall of the through hole 101 of the rear shell part 1 to stop and limit with the limiting boss. This embodiment not only greatly reduces the production cost of the rear shell part 1, but also effectively simplifies the assembly process. Moreover, compared with the insert injection molding method in the first embodiment, the connection strength between the plug-in part and the docking part 2 in this embodiment is higher and the service life is longer.

[0041] Embodiment three:

[0042] In order to further improve the reliability of the connector, this embodiment further adds a floating head to the non-plug-in end of the sleeve conductor 3 (i.e., the end used to connect to the board-end connector on the camera circuit board) based on the first or second embodiment. Specifically:

[0043] like Figure 7 and Figure 8As shown, as a preferred embodiment, one end of the sleeve conductor 3 located in the rear shell part 1 expands outwardly circumferentially (that is, the inner diameter of the non-plug-in end of the sleeve conductor 3 is larger than the inner diameter of the plug-in end of the sleeve conductor 3) to form a floating chamber 305 for the floating head to move freely within a certain range, and a fixed card slot 306 for installing the floating head is opened on the inner side wall above the floating chamber 305.

[0044] Correspondingly, the floating head includes a floating outer conductor 6, a floating center conductor 7 and a floating insulator 8 made of elastic metal sheets. A plurality of flexible claws 601 are evenly spaced in the circumferential direction at one end of the floating outer conductor 6. The flexible claws 601 are fixed in the fixed slot 306 to electrically connect the sleeve conductor 3 with the floating outer conductor 6. A limit stopper 602 bent inward is provided between two adjacent flexible claws 601, which can axially limit the floating insulator 8. A central jack 701 for inserting the center conductor 7 is provided in the middle of the floating center conductor 7. The floating center conductor 7 is coaxially fixed in the floating outer conductor 6 through the floating insulator 8. A plurality of elastic contact pieces 603 bent outward are spaced at the other end of the floating outer conductor 6. The plurality of elastic contact pieces 603 form a trumpet shape. In the process of mating the floating head with the board-end connector, the elastic contact piece 603 can play a guiding role. The floating head can effectively compensate for the gap and deviation between the sleeve conductor 3 and the board-end connector, making the contact tighter and more reliable, thereby improving the performance and stability of the connector.

[0045] The above-mentioned embodiments only express the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A new type of vehicle-mounted connector, characterized in that: At least: The plug connector comprises a hollow sleeve conductor, a center conductor extending in the axial direction in the hollow inner space, and an insulating medium arranged between the two conductors to hold the two conductors mutually; An external housing, comprising a docking portion having a docking cavity and a rear housing portion in the shape of a panel cavity; The docking part and the rear shell part are independent parts, and a surface joint is provided on the contact surface between the rear shell part and the docking part for fixing the rear shell part, the docking part and the connector together.

2. The novel vehicle-mounted connector according to claim 1 is characterized in that: The butt joint part and the sleeve conductor are an integral piece, so that the butt joint part and the plug connector form a whole.

3. A novel vehicle-mounted connector according to any one of claims 1 or 2, characterized in that: The surface joint portion is a through hole, and the integral piece consisting of the plug-in component and the butt joint portion is installed and fixed on the through hole in a penetrating manner.

4. The novel vehicle-mounted connector according to claim 3 is characterized in that: The butting portion and the sleeve conductor are formed into an integrally formed part through an insert injection molding process.

5. The novel vehicle-mounted connector according to claim 4 is characterized in that: The docking part is a hollow structure, comprising a docking tube part with a docking cavity therein and a base part located at the bottom of the docking tube part and provided with a limiting boss on the outer periphery; the through hole side wall of the rear shell part is also provided with an annular limiting groove arranged along the through hole, which is used to abut against the limiting boss for limiting; the sleeve conductor comprises a cylindrical part with one end protruding into the docking cavity and a limiting arm part extending outward from the middle position of the cylindrical part and arranged perpendicularly to the cylindrical part, the central conductor and the insulating medium are accommodated in the cylindrical part, and the limiting arm part abuts against the bottom of the base part.

6. The novel vehicle-mounted connector according to claim 3 is characterized in that: The butt joint portion and the sleeve conductor are constructed as an integral zinc die-cast component.

7. The novel vehicle-mounted connector according to claim 6 is characterized in that: The metal integral part composed of the docking part and the sleeve conductor includes a docking part with a docking cavity, a fixed installation part with a limiting boss on the outer periphery, and a hollow sleeve main body; one end of the sleeve main body protrudes into the docking cavity, and the other end thereof extends straight toward the inner side of the rear shell part, and the center conductor and the insulating medium are accommodated in the sleeve main body; the through hole side wall of the rear shell part is also provided with an annular limiting groove arranged along the through hole, which is used to stop with the limiting boss for limiting.

8. A novel vehicle-mounted connector according to any one of claims 1 or 2, characterized in that: One end of the sleeve conductor located in the rear shell part expands outwardly in the circumferential direction to form a floating chamber, and a floating head is installed in the floating chamber.

9. The novel vehicle-mounted connector according to claim 8 is characterized in that: The floating head comprises a floating outer conductor made of an elastic metal sheet and a floating center conductor fixed in the floating outer conductor in a coaxial configuration through a floating insulator.

10. The novel vehicle-mounted connector according to claim 1 is characterized in that: The joining gap between the plug connector and the rear shell part, and the joining gap between the insulating medium and the sleeve conductor are filled with sealant.

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