Vehicle-mounted camera

Abstract

The embodiment of the utility model provides a vehicle-mounted camera, which comprises a shell with one end provided with a through hole and a camera module assembled in the shell, and the camera module comprises an internal connector which is inserted into the through hole and is in butt joint with an external connector inserted from an orifice at the outer end of the through hole. A gasket which correspondingly covers an inner end hole opening of the through hole is arranged in the shell, the position, close to the inner end hole opening, in the through hole is filled with sealant used for sealing the through hole, and a guide pin of the internal connector sequentially penetrates through the gasket and the sealant to be exposed. And the gasket is a breathable gasket which is made of a breathable material capable of preventing the sealant from permeating and allowing air to pass through. According to the embodiment, the sealant can be effectively prevented from bubbling, and the sealing effect of the sealant is guaranteed.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of vehicle-mounted accessories, in particular to a vehicle-mounted camera. Background Art

[0002] There is a conventional vehicle-mounted camera, which includes a housing with a mounting hole at the front end and a through hole at the rear end, a lens with its bottom end inserted into the mounting hole and hermetically connected to the mounting hole, a PCB board assembly assembled in the housing, a photosensitive chip assembled on one side of the PCB board assembly facing the mounting hole and with its optical center on the optical axis of the lens, and an internal connector assembled on one side of the PCB board assembly facing the rear cover and exposed from the through hole; in order to achieve the sealing of the gap between the through hole and the internal connector, usually the bottom end of the through hole is filled with a sealant for sealing the bottom orifice of the through hole. At the same time, in order to prevent the sealant from flowing into the housing, usually an isolation gasket is also provided between the internal connector and the rear cover, and the end of the internal connector passes through the isolation gasket and is exposed outside the sealant.

[0003] However, the inventor found during the specific implementation that the isolation gasket of the traditional vehicle-mounted camera is made of silica gel, which will block the bottom orifice of the through hole after assembly, so that a sealed space will be formed in the housing before filling the sealant. Therefore, after the through hole is filled with the sealant, the air internally wrapped by the sealant in the through hole cannot pass through the isolation gasket, resulting in the sealant bulging, and ultimately affecting the sealing effect of the sealant. Summary of the Utility Model

[0004] The technical problem to be solved by the embodiment of the utility model is to provide a vehicle-mounted camera, which can effectively prevent the sealant from bulging and ensure the sealing effect of the sealant.

[0005] To solve the above technical problem, the embodiment of the utility model provides the following technical solution: A vehicle-mounted camera includes a housing with a through hole at one end and a camera module assembled in the housing. The camera module includes an internal connector inserted into the through hole and docked with an external connector inserted from the outer orifice of the through hole. A gasket corresponding to covering the inner orifice of the through hole is arranged in the housing. A sealant for sealing the through hole is filled near the inner orifice in the through hole. The guide pins of the internal connector pass through the gasket and the sealant in sequence and are exposed. The gasket is a breathable gasket made of a breathable material that can prevent the sealant from penetrating and allow air to pass through.

[0006] Further, the breathable gasket is a sponge gasket or a foam gasket.

[0007] Further, the internal connector further includes an insulating substrate through which the guide pins are correspondingly inserted and fixed, and the breathable gasket is clamped and fixed by the insulating substrate and the inner wall of the housing around the inner end orifice of the through hole.

[0008] Further, the breathable gasket is correspondingly provided with through holes for the guide pins to pass through, and the inner wall of the through holes is closely attached to the outer side wall of the guide pins.

[0009] Further, the housing includes a front shell and a rear shell both made of metal materials through a cold extrusion process. The front shell and the rear shell are integrally connected by a laser welding process. The through hole is formed in the rear shell, and a mounting hole is formed in the front shell. The camera module further includes a lens inserted into the mounting hole and hermetically connected to the front shell.

[0010] Further, at the outer edge of the welding butt joint surface of the front shell and the rear shell, the outer edges are respectively processed by a CNC process to remove the outer edges to form a process bevel or a process groove.

[0011] Further, the camera module further includes: a PCB board assembly fixed inside the housing and a photosensitive chip assembled on the PCB board assembly and disposed opposite to the inner end of the lens. The inner end of the guide pin is correspondingly welded to the PCB board assembly. An outer convex ring is formed by a radial protrusion on the outer wall of the middle section of the lens. After the front shell and the rear shell are integrally connected, the lens is aligned with the photosensitive chip through an active focusing process, and the outer convex ring is bonded and fixed to the peripheral edge of the orifice of the mounting hole by means of UV glue.

[0012] Further, the PCB board assembly includes a first PCB board disposed close to the mounting hole, a second PCB board disposed close to the through hole, and a transfer connector electrically connecting the first PCB board and the second PCB board correspondingly. The photosensitive chip is assembled on the first PCB board, and the inner end of the guide pin is welded to the second PCB board.

[0013] Further, the inner wall of the front shell is respectively provided with a first positioning step for positioning the first PCB board and a second positioning step for positioning the second PCB board.

[0014] Further, the inner wall of the front shell is further provided with a first positioning portion for guiding the first PCB board to be inserted into the front shell and a second positioning portion for guiding the second PCB board to be inserted into the front shell.

[0015] After adopting the above technical solution, the embodiment of the present utility model has at least the following beneficial effects: By using a breathable gasket made of a breathable material that can prevent the penetration of the sealant and allow air to pass through, when filling the sealant into the mounting hole, on the one hand, it can avoid the sealant from penetrating through the breathable gasket into the interior of the housing, and on the other hand, it can facilitate the air between the sealant and the breathable gasket to enter the interior of the housing through the breathable gasket, thus effectively avoiding the problem of sealant bubbling that may occur when this part of the air cannot be discharged, and ensuring the sealing effect of the sealant on the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic exploded view of an optional embodiment of the vehicle-mounted camera of the present utility model.

[0017] Figure 2 It is a schematic assembled view of an optional embodiment of the vehicle-mounted camera of the present utility model.

[0018] Figure 3 It is a schematic sectional view of an optional embodiment of the vehicle-mounted camera of the present utility model.

[0019] Figure 4 It is a schematic sectional view of an optional embodiment of the vehicle-mounted camera of the present utility model after assembling an external connector.

[0020] Figure 5 It is an optional embodiment of the vehicle-mounted camera of the present utility model Figure 3 Schematic enlarged view of part A in

[0021] Figure 6 It is another optional embodiment of the vehicle-mounted camera of the present utility model Figure 3 Schematic enlarged view of part A in

[0022] Figure 7 It is a schematic front shell view of an optional embodiment of the vehicle-mounted camera of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes the present application in detail with reference to the drawings and specific embodiments. It should be understood that the following illustrative embodiments and descriptions are only used to explain the present utility model and are not intended to limit the present utility model. Moreover, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0024] As Figures 1-4As shown in the figure, an alternative embodiment of the present utility model provides a vehicle-mounted camera, which includes a housing 1 with a through hole 10 at one end and an imaging module 3 assembled in the housing. The imaging module 3 includes an internal connector 30 inserted into the through hole 10 and docked with an external connector 5 inserted from the outer end orifice of the through hole 10. A gasket 12 corresponding to cover the inner end orifice of the through hole 10 is arranged in the housing 1. A sealant 14 for sealing the through hole 10 is filled near the inner end orifice in the through hole 10. The guide pins 301 of the internal connector 30 are exposed in sequence through the gasket 12 and the sealant 14. The gasket 12 is a breathable gasket made of a breathable material that can prevent the penetration of the sealant 12 and allow air to pass through.

[0025] In the embodiment of the present utility model, by using a breathable gasket made of a breathable material that can prevent the penetration of the sealant 12 and allow air to pass through, when filling the sealant 12 into the mounting hole, on the one hand, it can avoid the sealant 12 penetrating into the interior of the housing 1 through the breathable gasket 12, and on the other hand, it can facilitate the air between the sealant 12 and the breathable gasket 12 to enter the interior of the housing 1 through the breathable gasket 12, thus effectively avoiding the problem of sealant 12 bubbling that may occur when this part of the air cannot be discharged, and ensuring the sealing effect of the sealant 12 on the through hole 10.

[0026] In an alternative embodiment of the present utility model, the breathable gasket 12 is a sponge gasket or a foam gasket. In this embodiment, both the sponge gasket and the foam gasket are good breathable gasket materials. At the same time, traditional sealants 14 usually use UV glue, epoxy resin, etc., and the sponge gasket or the foam gasket can also prevent the penetration of the above-mentioned sealant 14.

[0027] In an alternative embodiment of the present utility model, as Figure 1 and Figure 3 shown, the internal connector 30 further includes an insulating substrate 303 for the corresponding penetration and fixation of the guide pins 301. The breathable gasket 12 is clamped and fixed by the insulating substrate 303 and the inner wall of the housing 1 around the inner end orifice of the through hole 10. In this embodiment, the internal connector 3 is also provided with an insulating substrate 303. By using the insulating substrate 303 and the inner wall of the housing 1 to clamp the breathable gasket 12, the positioning of the breathable gasket 12 can be very simply realized.

[0028] In an alternative embodiment of the present utility model, as Figures 1-4As shown, a perforation 121 for the guide pin 301 to pass through is correspondingly provided on the breathable gasket 12, and the inner wall of the perforation 121 is closely attached to the outer wall of the guide pin 121. In this embodiment, when the guide pin 301 passes through the perforation 121 of the breathable gasket 12, the inner wall of the perforation 121 can be closely attached to the outer wall of the guide pin 121, thereby preventing the sealant 14 from seeping into the interior of the housing 1 through the gap between the perforation 121 and the guide pin 301. In specific implementation, during specific assembly, the guide pin 301 can be used to pierce through the breathable gasket 12 to form the perforation 121.

[0029] In an alternative embodiment of the present utility model, as Figure 1 , Figure 2 and Figures 5-6 shown, the housing 1 includes a front shell 15 and a rear cover 16 both made of metal materials through a cold extrusion process. The front shell 15 and the rear cover 16 are connected into one body by a laser welding process. The through hole 10 is provided on the rear cover 16, and a mounting hole 151 is provided on the front shell 15. The camera module 3 further includes a lens 32 disposed in the mounting hole 151 and hermetically connected to the front shell 15. In this embodiment, the housing 1 includes the front shell 15 and the rear cover 16 connected into one body by a laser welding process, which facilitates the assembly of the internal structure of the housing 1 and can also achieve the hermetic connection between the front shell 15 and the rear cover 16.

[0030] In an alternative embodiment of the present utility model, at the outer edge of the welding butt joint surface of the front shell 15 and the rear cover 16, the outer edges are respectively machined by a CNC process to remove the outer edges and corners to form a process inclined surface 15a (as Figure 5 shown) or a process groove 15b (as Figure 6 shown). Since both the front shell 15 and the rear cover 16 are housings formed by a cold extrusion process using metal materials, during the forming process, the edge corners of the housing are prone to problems such as voids due to impurities and flanging. To avoid the influence of the laser welding of the edge of the void welding butt joint surface on the sealing performance between the front shell 15 and the rear cover 16, in this embodiment, the outer edges of the welding butt joint surface are respectively machined by a CNC process to remove the edges and corners to form a process inclined surface 15a or a process groove 15b, thereby removing the edges and corners where voids may appear. After the outer edges of the welding butt joint surfaces of the front shell 15 and the rear cover 16 are connected into one body by a laser welding process, they have good sealing performance.

[0031] In an alternative embodiment of the present utility model, as Figure 1 , Figure 3 and Figure 4As shown, the camera module 3 further includes: a PCB board assembly 34 fixed inside the housing and an image sensor chip 36 assembled on the PCB board assembly 34 and disposed opposite the inner end of the lens 32. The inner end of the guide pin 30 is correspondingly welded to the PCB board assembly 34. An outer convex ring 321 is formed by a radial protrusion on the outer wall of the middle section of the lens 32. After the front shell 15 and the rear cover 16 are integrated, the lens 32 is aligned with the image sensor chip 36 through an active focusing process, and the outer convex ring 321 is bonded and fixed to the peripheral edge of the orifice of the mounting hole 151 by means of a UV glue 323. In this embodiment, by providing the outer convex ring 321 in the middle section of the lens 32 and using the outer convex ring 321 to be bonded and fixed to the peripheral edge of the orifice of the mounting hole 151 by means of the UV glue 323, a sealed connection between the lens 32 and the mounting hole 151 is achieved. At the same time, during the specific implementation and assembly, to prevent the high temperature of laser welding from causing the UV glue 323 and the sealant 14 to fail, therefore, the laser welding should be carried out prior to the dispensing process of the UV glue 323 and the sealant 14.

[0032] In an alternative embodiment of the present invention, as Figure 1 and Figure 3 shown, the PCB board assembly 34 includes a first PCB board 341 disposed close to the mounting hole 151, a second PCB board 343 disposed close to the through hole 10, and a transfer connector 345 for correspondingly electrically connecting the first PCB board 341 and the second PCB board 343. The image sensor chip 36 is assembled on the first PCB board 341, and the inner end of the guide pin 301 is welded to the second PCB board 343. In this embodiment, different PCB boards perform different functions. The first PCB board 341 mainly realizes image processing, while the second PCB board 343 mainly realizes circuit connection and signal transmission, and the transfer connector 345 realizes the circuit connection and signal transmission between the two.

[0033] In an alternative embodiment of the present invention, as Figure 1 and Figure 7 shown, the inner wall of the front shell 15 is respectively provided with a first positioning step 153 for positioning the first PCB board 341 and a second positioning step 155 for positioning the second PCB board 343. In this embodiment, by further providing the first positioning step 153 and the second positioning step 155, the assembly and positioning of the first PCB board 341 and the second PCB board 343 are facilitated.

[0034] In an alternative embodiment of the present invention, as Figure 1 and Figure 7As shown, the inner wall of the front housing 15 is further provided with a first positioning portion 157 for guiding the first PCB board 341 to be directionally inserted into the front housing 15 and a second positioning portion 159 for guiding the second PCB board 343 to be directionally inserted into the front housing 15. In this embodiment, by providing the first positioning portion 157 and the second positioning portion 159, it is ensured that when the first PCB board 341 and the second PCB board 343 are assembled, they can only be inserted into the front housing 15 at a predetermined angle, so as to ensure that after assembly, the relevant structures on the first PCB board 341 and the second PCB board 343 can be accurately aligned with the structures on the front housing 15. In specific implementation, there are many implementation manners for the first positioning portion 157 and the second positioning portion 159. For example: cooperation between a positioning hole and a positioning post, cooperation between a positioning rib and a positioning notch, cooperation between a positioning chamfer and a positioning protrusion, etc.

[0035] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the present invention and the claims. All of these fall within the protection scope of the present invention.

Claims

1. A vehicle-mounted camera, comprising a shell with a through hole at one end and a camera module assembled in the shell, the camera module comprising an internal connector inserted into the through hole and docked with an external connector inserted from the outer end opening of the through hole, a gasket corresponding to the inner end opening of the through hole is arranged in the shell, a sealant for sealing the through hole is filled in the through hole near the inner end opening, a guide pin of the internal connector passes through the gasket and the sealant in sequence and is exposed, characterized in that: The gasket is a breathable gasket made of a breathable material that can prevent the sealant from penetrating but allow air to pass through.

2. The vehicle-mounted camera according to claim 1, characterized in that: The breathable gasket is a sponge gasket or a foam gasket.

3. The vehicle-mounted camera according to claim 1 or 2, characterized in that: The internal connector also includes an insulating base for the guide pin to pass through and fix, and the air-permeable gasket is clamped and fixed by the insulating base and the inner wall of the shell around the inner end opening of the through hole.

4. The vehicle-mounted camera according to claim 3, characterized in that: The air-permeable gasket is correspondingly provided with a through hole for the guide needle to pass through, and the inner wall of the through hole is tightly fitted to the outer wall of the guide needle.

5. The vehicle-mounted camera according to claim 3, characterized in that: The shell includes a front shell and a rear cover both made of metal materials through a cold extrusion process, the front shell and the rear cover are connected as a whole through a laser welding process, the through hole is opened on the rear cover, the mounting hole is opened on the front shell, and the camera module also includes a lens that is inserted into the mounting hole and sealed with the front shell.

6. The vehicle-mounted camera according to claim 5, characterized in that: The outer edges of the welding joint surfaces of the front shell and the rear cover are respectively processed by CNC technology to cut off the outer corners to form a process bevel or a process groove.

7. The vehicle-mounted camera according to claim 5, characterized in that: The camera module also includes: a PCB board assembly fixed inside the shell and a photosensitive chip assembled on the PCB board assembly and arranged opposite the inner end of the lens, the inner end of the guide pin is correspondingly welded to the PCB board assembly, the middle section outer wall of the lens is radially protruding to form an outer convex ring, the lens is aligned with the photosensitive chip through an active focusing process after the front shell and the rear cover are connected as one, and is fixed to the periphery of the hole opening of the mounting hole by the outer convex ring with the help of UV glue.

8. The vehicle-mounted camera according to claim 7, characterized in that: The PCB board assembly includes a first PCB board arranged near the mounting hole, a second PCB board arranged near the through hole, and a transit connector electrically connecting the first PCB board and the second PCB board. The photosensitive chip is assembled on the first PCB board, and the inner end of the guide pin is welded on the second PCB board.

9. The vehicle-mounted camera according to claim 8, characterized in that: The inner wall of the front shell is respectively provided with a first positioning step for positioning the first PCB board and a second positioning step for positioning the second PCB board.

10. The vehicle-mounted camera according to claim 8, characterized in that: The inner wall of the front shell is further provided with a first positioning portion for allowing the first PCB board to be installed in the front shell in a directional manner and a second positioning portion for allowing the second PCB board to be installed in the front shell in a directional manner.

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