On-vehicle camera

Abstract

The embodiment of the present application provides a kind of vehicle camera, including the shell with mounting hole in top end and lens with bottom end inserted into mounting hole, the outer side wall of lens is formed with outer convex ring along radial convex, vehicle camera further includes the connecting cylinder inserted into mounting hole and the sealing washer between the outer wall of connecting cylinder and the hole wall of mounting hole to seal the gap between connecting cylinder and fixed in mounting hole and outer wall and hole wall, the outer side wall of the bottom end of connecting cylinder is symmetrically provided with limiting boss with the top wall of shell to limit the insertion depth of connecting cylinder in mounting hole, the bottom end of lens is inserted into connecting cylinder from the top end of connecting cylinder after extending into mounting hole, the bottom surface of outer convex ring is fixedly connected with the top end surface of connecting cylinder, and the part of outer side surface of outer convex ring and hole wall of mounting hole is integrally connected by laser welding process.The embodiment can realize the stable, sealed connection of lens and shell.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of vehicle-mounted camera equipment, in particular to a vehicle-mounted camera. BACKGROUND

[0002] The existing vehicle-mounted camera generally comprises a shell with a mounting hole at the top end and a lens inserted into the mounting hole at the bottom end. In order to realize the relative fixation of the lens and the shell, the outer side wall of the existing lens is radially protruded to form an outer protruding ring, one end of the lens is inserted into the mounting hole, and the gap between the outer protruding ring and the hole edge of the mounting hole is filled with sealing glue, and the lens and the shell are fixed by the sealing glue.

[0003] However, the inventor found in the specific implementation that the sealing glue of the vehicle-mounted camera is prone to denaturation and falling off due to high-pressure water or high-temperature sunlight in the long-term use process, has poor weather resistance, and is prone to cause the connection failure of the lens and the shell, so that the lens has the risk of falling off, and the stability is relatively poor. SUMMARY

[0004] The technical problem to be solved by the embodiment of the present application is to provide a vehicle-mounted camera which can realize the stable and sealed connection of the lens and the shell.

[0005] In order to solve the above technical problems, the embodiment of the present application provides the following technical scheme: a vehicle-mounted camera, comprising a shell with a mounting hole at the top end and a lens inserted into the mounting hole at the bottom end, the outer side wall of the lens is radially protruded to form an outer protruding ring, the vehicle-mounted camera further comprises a connecting barrel inserted into the mounting hole and a sealing ring arranged between the outer wall of the connecting barrel and the hole wall of the mounting hole to fix the connecting barrel in the mounting hole and seal the gap between the outer wall and the hole wall, the outer side wall of the bottom end of the connecting barrel is symmetrically protruded to form a limiting boss abutting against the top wall of the shell to limit the insertion depth of the connecting barrel into the mounting hole, the bottom end of the lens is inserted into the connecting barrel from the top end of the connecting barrel after extending into the mounting hole, the bottom surface of the outer protruding ring is fixedly connected with the top end surface of the connecting barrel, and the part of the outer side surface of the outer protruding ring opposite to the hole wall of the mounting hole is integrally connected by laser welding process.

[0006] Further, the bottom surface of the outer protruding ring is sealed and bonded to the top end surface of the connecting barrel by the sealing glue.

[0007] Further, the bottom surface of the outer protruding ring and the top end surface of the connecting barrel are integrally connected by laser welding process.

[0008] Further, the top surface of the outer protruding ring is flush with the peripheral plane of the top end hole of the mounting hole.

[0009] Further, the outer wall of the top of the connecting cylinder is provided with a positioning ring groove, the sealing washer is installed in the positioning ring groove and protrudes from the notch of the positioning ring groove, when the top end of the connecting cylinder is inserted into the mounting hole, the sealing washer is extruded by the cooperation of the outer wall of the connecting cylinder and the hole wall of the mounting hole to make the sealing washer elastically deform to clamp and fix the connecting cylinder and seal the gap between the outer wall of the connecting cylinder and the hole wall of the mounting hole.

[0010] Further, the vehicle-mounted camera further comprises a PCB plate fixedly assembled in the shell and a photosensitive chip assembled in the middle of the PCB plate, the bottom end of the connecting cylinder is fixed on the PCB plate, and the photosensitive chip is located on the inner side of the connecting cylinder.

[0011] Further, the bottom end of the connecting cylinder is further provided with a predetermined positioning column protruding at a predetermined position, and the PCB plate is provided with a predetermined positioning hole corresponding thereto, the predetermined positioning column is inserted into the predetermined positioning hole to relatively position the connecting cylinder and the PCB plate.

[0012] Further, the limiting boss is provided with a first screw hole, the PCB plate is provided with a first through hole, and a first screw is screwed into the first screw hole from the bottom surface of the PCB plate through the first through hole to fix the bottom end of the connecting cylinder on the PCB plate.

[0013] Further, the bottom end of the shell is provided with an opening, the PCB plate and the photosensitive chip are loaded into the shell from the opening, the PCB plate is further provided with a second through hole, the top wall of the shell is provided with a second screw hole corresponding thereto, and a second screw is locked in the second screw hole from the bottom surface of the PCB plate through the second through hole to fix the PCB plate in the shell.

[0014] Further, the vehicle-mounted camera further comprises a bottom cover whose top surface edge abuts with the periphery of the opening and is connected as a whole through a laser welding process, the side of the PCB plate away from the photosensitive chip is further provided with a plug-in part for mating with an external connector, and the bottom surface of the bottom cover is further protruded to form a connecting sleeve pipe surrounding the outside of the plug-in part and being provided for the external connector to be inserted.

[0015] According to the technical scheme, the embodiment of the present application has at least the following beneficial effects: the embodiment of the present application adds the connecting cylinder, and the sealing gasket is arranged between the outer wall of the connecting cylinder and the hole wall of the mounting hole, on the one hand, the connecting cylinder can be fixed in the mounting hole by the sealing gasket, and on the other hand, the gap between the outer wall of the connecting cylinder and the hole wall of the mounting hole is sealed, the bottom surface of the outer convex ring of the lens is further fixedly connected with the top end surface of the connecting cylinder, the lens and the connecting cylinder are fixed, the depth of the connecting cylinder inserted into the mounting hole is limited by the limiting boss, the position of the outer convex ring and the mounting hole is guaranteed to correspond, the part of the outer side surface of the outer convex ring and the hole wall of the mounting hole which are opposite to each other is conveniently connected into one body by the laser welding process, the welding seam has good sealing performance and stable connection, the waterproof and dustproof effect can be well achieved, and the sealing performance between the lens and the shell can be further improved due to the fact that the gap between the outer wall of the connecting cylinder and the hole wall of the mounting hole is sealed by the sealing gasket. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a split structure schematic view of an optional embodiment of the vehicle-mounted camera of the present application.

[0017] Figure 2 It is an assembly structure schematic view of an optional embodiment of the vehicle-mounted camera of the present application.

[0018] Figure 3 It is a cross-sectional structure schematic view of the axial surface of two limiting bosses of an optional embodiment of the vehicle-mounted camera of the present application.

[0019] Figure 4 It is a split structure schematic view of an optional embodiment of the vehicle-mounted camera of the present application. DETAILED DESCRIPTION

[0020] The present application will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the following illustrative embodiments and descriptions are only used to explain the present application and are not intended to limit the present application, and the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0021] As Figures 1-3As shown, one optional embodiment of the present application provides a vehicle-mounted camera, which comprises a shell 1 provided with a mounting hole 10 at the top end and a lens 3 inserted into the mounting hole 10 at the bottom end, an outer side wall of the lens 3 is radially protruded to form an outer protruding ring 30, the vehicle-mounted camera further comprises a connecting cylinder 5 inserted into the mounting hole 10 and a sealing gasket 6 arranged between an outer wall of the connecting cylinder 5 and a hole wall of the mounting hole 10 to fix the connecting cylinder 5 in the mounting hole 10 and seal a gap between the outer wall and the hole wall, an outer side wall of the bottom end of the connecting cylinder 5 is symmetrically protruded to be provided with a limiting boss 50 abutting against a top wall of the shell 1 to limit a depth of the connecting cylinder 5 inserted into the mounting hole 10, the bottom surface of the outer protruding ring 30 is fixedly connected with a top end surface of the connecting cylinder 5, and the outer side surface 301 of the outer protruding ring 30 is integrally connected with the part 101 of the hole wall of the mounting hole 10 through the laser welding process.

[0022] The embodiment of the present application adds the connecting cylinder 5, and the sealing gasket 6 is arranged between the outer wall of the connecting cylinder 5 and the hole wall of the mounting hole 10, on the one hand, the connecting cylinder 5 can be fixed in the mounting hole 10 by the sealing gasket 6, and on the other hand, the gap between the outer wall of the connecting cylinder 5 and the hole wall of the mounting hole 10 is sealed, the bottom surface of the outer protruding ring 30 of the lens 3 is further fixedly connected with the top end surface of the connecting cylinder 5, the lens 3 and the connecting cylinder 5 are fixed, the depth of the connecting cylinder 5 inserted into the mounting hole 10 is limited by the limiting boss 50, the position of the outer protruding ring 30 corresponds to the mounting hole 10, the outer side surface 301 of the outer protruding ring 30 is integrally connected with the part 101 of the hole wall of the mounting hole 10 through the laser welding process, the welding seam has good sealing performance and stable connection, the waterproof and dustproof effect can be well achieved, and the sealing performance between the lens 3 and the shell 1 is further improved due to the sealing of the gap between the outer wall of the connecting cylinder 5 and the hole wall of the mounting hole 10 by the sealing gasket 6.

[0023] In one optional embodiment of the present application, as Figure 1 , Figure 3 and Figure 4As shown, the bottom surface of the outer convex ring 30 is sealed and bonded to the top end surface of the connecting cylinder 5 by means of the sealant 32. In this embodiment, the bonding of the bottom surface of the outer convex ring 30 and the top end surface of the connecting cylinder 5 by means of the sealant 32 can effectively achieve relative fixation, and even if the welding layer formed by laser welding process between the top surface 301 of the outer convex ring 30 and the peripheral plane 101 of the top end orifice of the mounting hole 10 fails, the effective sealing between the lens 3 and the shell 1 can also be achieved by means of the sealed connection between the top end surface of the connecting cylinder 5 and the bottom surface of the outer convex ring 30 and the sealed connection between the top end of the connecting cylinder 5 and the top end hole wall of the mounting hole 10. Moreover, the distance between the bottom end of the lens 3 and the photosensitive surface of the photosensitive chip 7 (i.e. the focal length) can also be adjusted by flexibly adjusting the thickness of the sealant 32.

[0024] In an optional embodiment of the present application, the bottom surface of the outer convex ring 30 and the top end surface of the connecting cylinder 5 are integrated by means of laser welding process. In this embodiment, the integration of the bottom surface of the outer convex ring 30 and the top end surface of the connecting cylinder 5 by means of laser welding process can also effectively achieve relative fixation.

[0025] In an optional embodiment of the present application, as shown in Figure 3 , the top surface 301 of the outer convex ring 30 is flush with the peripheral plane 101 of the top end orifice of the mounting hole 10. In this embodiment, the top surface 301 of the outer convex ring 30 is set to be flush with the peripheral plane 101 of the top end orifice of the mounting hole 10 during assembly, which facilitates laser welding, and after overall laser welding, the welding surface is relatively flat and beautiful.

[0026] In an optional embodiment of the present application, as shown in Figure 1 , Figure 3 and Figure 4 , the outer wall of the top part of the connecting cylinder 5 is provided with a positioning ring groove 52, the sealing washer 6 is installed in the positioning ring groove 52 and protrudes from the groove opening of the positioning ring groove 52, and when the top end of the connecting cylinder 5 is inserted into the mounting hole 10, the sealing washer 82 is extruded by the cooperation of the outer wall of the connecting cylinder 5 and the hole wall of the mounting hole 10 to make the sealing washer 6 elastically deform to clamp and fix the connecting cylinder 5 and seal the gap between the outer wall of the connecting cylinder 5 and the hole wall of the mounting hole 10. In this embodiment, the extrusion of the sealing washer 6 by the cooperation of the outer wall of the connecting cylinder 5 and the hole wall of the mounting hole 10 can effectively achieve the sealed connection between the connecting cylinder 5 and the mounting hole 10 by means of the sealing washer 6, and by setting the positioning ring groove 52, the relative sliding of the sealing washer 6 during extrusion is avoided, which can improve the convenience of assembly.

[0027] In an optional embodiment of the present application, as shown in Figure 1 and Figure 3As shown, the vehicle-mounted camera further comprises a PCB board 7 fixedly assembled in the shell 1 and a photosensitive chip 8 assembled in the middle of the PCB board 7, and the bottom end of the connecting cylinder 5 is fixed on the PCB board 7, and the photosensitive chip 8 is located at the inner side of the connecting cylinder 5. In this embodiment, the bottom end of the connecting cylinder 5 is fixed on the PCB board 7, and in the specific assembly, the connecting cylinder 5 can be first fixed on the PCB board 7, then the bottom end of the lens 3 is inserted into the connecting cylinder 5, the outer convex ring 30 of the lens 3 is fixedly connected with the top end surface of the connecting cylinder 5, and finally the lens 3 and the connecting cylinder 5 are inserted into the mounting hole 10 of the shell 1 to complete the assembly.

[0028] In an optional embodiment of the present application, as shown in Figure 4 As shown, the bottom end of the connecting cylinder 5 is further provided with a predetermined positioning column 54 at a predetermined position, and a predetermined positioning hole 70 is correspondingly provided on the PCB board 7, and the predetermined positioning column 54 is inserted into the predetermined positioning hole 70 to relatively position the connecting cylinder 5 and the PCB board 7. In this embodiment, the preliminary positioning of the connecting cylinder 5 and the PCB board 7 is realized by inserting the predetermined positioning column 54 into the predetermined positioning hole 70, the relative position of the connecting cylinder 5 and the photosensitive chip 8 on the PCB board 7 is ensured, and the displacement of the connecting cylinder 5 in the subsequent assembly process is avoided to ensure that the optical axis of the lens 3 and the photosensitive chip 8 can accurately coincide.

[0029] In an optional embodiment of the present application, as shown in Figure 1 , Figure 3 and Figure 4 The limiting boss 50 is provided with a first screw hole 501, the PCB board 7 is provided with a first through hole 72, and the bottom surface of the PCB board 7 is further provided with a first screw 74 which is screwed into the first screw hole 501 through the first through hole 72 to fix the bottom end of the connecting cylinder 5 on the PCB board 7. In this embodiment, the first screw 74 is screwed into the first screw hole 501 through the first through hole 72 of the PCB board 7, the relative fixation of the PCB board 7 and the bottom end of the connecting cylinder 5 is realized by the first screw 74, the assembly structure is relatively simple, and the disassembly is very convenient.

[0030] In an optional embodiment of the present application, as shown in Figure 1 , Figure 3 and Figure 4As shown, the bottom end of the shell 1 is provided with an opening 12, the PCB board 5 and the photosensitive chip 7 are loaded into the shell 1 from the opening 12, the PCB board 7 is further provided with a second through hole 76, and the top wall of the shell 1 is correspondingly provided with a second screw hole 14, and the PCB board 7 is fixed in the shell 1 by locking a second screw 78 in the second screw hole 14 after the second screw 78 passes through the second through hole 76 from the bottom surface of the PCB board 7. In the embodiment, the opening 12 is arranged to facilitate the loading of the PCB board 7 and the photosensitive chip 8 into the shell 1, thereby improving the assembly efficiency; and the locking of the second screw 78 can effectively fix the PCB board 7 in the shell 1.

[0031] In an optional embodiment of the present application, as shown in Figure 1 and Figure 3 Figure 4 Figure 1 Figure 3 As shown, the vehicle-mounted camera further comprises a bottom cover 9, the top edge of the bottom cover 9 abuts against the periphery of the opening 12 and is connected as a whole by a laser welding process, the side of the PCB board 7 away from the photosensitive chip 8 is further provided with a plug-in part 79 for mating with an external connector, and the bottom surface of the bottom cover 9 is further protruded to form a connecting sleeve 90 surrounding the outside of the plug-in part 18 and provided for the insertion of the external connector. In the embodiment, the top edge of the bottom cover 9 abuts against the periphery of the opening 12, and the two are connected as a whole by a laser welding process, which can effectively realize the sealed connection of the two and has good connection stability; the plug-in part 79 is arranged to facilitate the connection of the vehicle-mounted camera with an external controller and output the collected image signals, and the connecting sleeve 90 is arranged to protect the internal plug-in part 79 and facilitate the mating with the external connector.

[0032] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative and not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, which all belong to the protection scope of the present application.

Claims

1. A vehicle-mounted camera comprising a housing having a mounting hole at a top end and a lens inserted into the mounting hole at a bottom end, an outer side wall of the lens being formed with an outer convex ring in a radial direction, characterized in that, The vehicle-mounted camera further comprises a connecting cylinder inserted into the mounting hole and a sealing washer arranged between the outer wall of the connecting cylinder and the hole wall of the mounting hole to fix the connecting cylinder in the mounting hole and seal the gap between the outer wall and the hole wall, the outer side wall of the bottom end of the connecting cylinder is symmetrically provided with a limiting boss abutting against the top wall of the shell to limit the insertion depth of the connecting cylinder into the mounting hole, the bottom end of the lens and the top end of the connecting cylinder are inserted into the mounting hole from the outer side and the inner side of the shell respectively, the bottom end of the lens is inserted into the connecting cylinder from the top end of the connecting cylinder after being inserted into the mounting hole, the bottom surface of the outer convex ring is fixedly connected with the top end surface of the connecting cylinder, and the outer side surface of the outer convex ring is integrally connected with the hole wall of the mounting hole through a laser welding process.

2. The vehicle camera of claim 1, wherein, The bottom surface of the outer convex ring is sealed and bonded to the top end surface of the connecting cylinder by means of a sealant.

3. The vehicle camera of claim 1, wherein, The bottom surface of the outer convex ring is integrally connected with the top end surface of the connecting cylinder through a laser welding process.

4. The vehicle camera of claim 1, wherein, The top surface of the outer convex ring is flush with the circumferential plane of the top end aperture of the mounting hole.

5. The vehicle camera of claim 1, wherein, The outer wall of the top of the connecting cylinder is provided with a positioning ring groove, the sealing washer is embedded in the positioning ring groove and protrudes from the slot opening of the positioning ring groove, and when the connecting cylinder is inserted into the mounting hole, the sealing washer is extruded by the cooperation of the outer wall of the connecting cylinder and the hole wall of the mounting hole to make the sealing washer elastically deform to clamp and fix the connecting cylinder and seal the gap between the outer wall of the connecting cylinder and the hole wall of the mounting hole.

6. The vehicle camera of claim 1, wherein, The vehicle-mounted camera further comprises a PCB board fixedly assembled in the shell and a photosensitive chip assembled in the middle of the PCB board, the bottom end of the connecting cylinder is fixed on the PCB board, and the photosensitive chip is located on the inner side of the connecting cylinder.

7. The vehicle camera of claim 6, wherein, The bottom end of the connecting cylinder is further provided with a predetermined positioning column protruding at a predetermined position, and a predetermined positioning hole is correspondingly provided on the PCB board, the predetermined positioning column is inserted into the predetermined positioning hole to relatively position the connecting cylinder and the PCB board.

8. The vehicle camera of claim 6, wherein, A first screw hole is provided on the limiting boss, a first through hole is provided on the PCB board, and a first screw is screwed into the first screw hole from the bottom surface of the PCB board through the first through hole to fix the bottom end of the connecting cylinder on the PCB board.

9. The vehicle camera of claim 6, wherein, The bottom end of the shell is provided with an opening, the PCB board and the photosensitive chip are loaded into the shell from the opening, a second through hole is further provided on the PCB board, a second screw hole is correspondingly provided on the top wall of the shell, and a second screw is locked in the second screw hole from the bottom surface of the PCB board through the second through hole to fix the PCB board in the shell.

10. The vehicle camera of claim 9, wherein, The vehicle-mounted camera further comprises a bottom cover whose top edge abuts against the periphery of the opening and is integrally connected with the opening through a laser welding process, and the side of the PCB board away from the photosensitive chip is further provided with a plug-in connector for connecting with an external connector, and the bottom surface of the bottom cover further protrudes to form a connecting sleeve pipe arranged around the outer side of the plug-in connector and used for inserting the external connector.

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