Novel vehicle-mounted camera
By adopting the design of positioning ring, blocking groove and blocking block in the vehicle-mounted camera, a sealed space is formed, which solves the problem of screw debris adsorption and ensures the stability and image quality of the camera.
Patent Information
- Application Number
- CN202422650520.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In existing vehicle-mounted cameras, when the housing and PCBA board are fixed with screws, debris is easily adsorbed on the image sensor, affecting the working performance of the camera.
The design of positioning ring, blocking groove and blocking block forms a sealed space when the screw is clamped to the PCBA board. Combined with the secondary seal of the annular ring and screw, it prevents debris from entering the image sensor.
The double sealing structure prevents screw debris from entering the image sensor, ensuring the stability and working effect of the camera.
Smart Images
Figure CN223402542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a novel vehicle-mounted camera, belonging to the technical field of vehicle-mounted cameras. Background Art
[0002] The in-vehicle camera is a core component of advanced driver assistance systems. Working together with an image sensor and a dual-core MCU with DSP expansion, it provides incoming video frames, performs image processing, and monitors the road ahead, enabling assisted driving functions such as FAM, LDW, and ACC. The in-vehicle camera body primarily consists of an optical lens assembly, housing, image sensor, PCBA, and a stopper. The optical lens assembly and housing are connected via active focus, the image sensor is soldered to the PCBA, the housing is secured to the PCBA via screws, and finally, the housing is secured to the stopper via welding or screws. Existing in-vehicle camera housings are made of plastic or metal. During the screw fastening process to the PCBA, debris often forms. Vibration and movement of these debris can attract the image sensor, causing black spots and blur in the camera's output. This can ultimately affect overall imaging and subsequent automatic ranging, object recognition, blind spot detection, and anomaly alarms.
[0003] It can be seen from this that in the existing vehicle-mounted camera technology, screws are usually used to fix the shell and the PCBA board. Debris often appears during the fixing process of the screws. The debris will be adsorbed on the image sensor through vibration and movement, affecting the working performance of the vehicle-mounted camera. Utility Model Content
[0004] The purpose of the present utility model is to overcome the deficiencies in the prior art and provide a novel vehicle-mounted camera. The present utility model solves the problem that in the prior art vehicle-mounted cameras, screws are usually used to fix the housing and the PCBA board. During the fixing process, the screws often produce debris. The debris is adsorbed on the image sensor through vibration and movement, thereby affecting the working performance of the vehicle-mounted camera.
[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0006] The utility model provides a new type of vehicle-mounted camera, including a housing and a PCBA board. A lens is provided at the bottom of the housing, a plurality of screws are threadedly connected to the inner wall of the housing, a positioning ring is provided on the inner wall of the housing outside the screws, and a through hole matching the positioning ring is opened on the PCBA board;
[0007] A blocking groove is provided on the top of the positioning ring, an annular ring is provided on the outer wall of the screw, and a blocking block matching the blocking groove is provided at the bottom of the annular ring. When the screw cooperates with the shell to clamp the PCBA board, the blocking block is located inside the blocking groove.
[0008] Furthermore, a cover is detachably connected to the top of the shell, and the screw is located between the cover and the shell.
[0009] Furthermore, an annular clamping block is provided on the outer wall of the blocking block close to the blocking groove.
[0010] Furthermore, a first annular protrusion is provided on one side of the inner wall of the blocking groove.
[0011] Furthermore, two second annular protrusions are provided on the other side of the inner wall of the blocking groove, and the first annular protrusion and the two second annular protrusions are arranged alternately.
[0012] Furthermore, the first annular protrusion and the second annular protrusion are both made of elastic material.
[0013] Furthermore, the number of the screws is two and they are distributed on both sides of the inner wall of the shell.
[0014] Furthermore, the lens includes an optical lens group, and the optical lens group is fixedly connected to the housing by UV fixing glue.
[0015] Furthermore, an image sensor is provided on one side of the outer wall of the PCBA board.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. This new type of vehicle-mounted camera uses a positioning ring, blocking groove, and blocking block to form a sealed space when the screw is fixed to the PCBA board. The housing, positioning ring, annular ring, and screw cooperate to form a sealed space. On this basis, the contact surface between the screw and the top of the PCBA board forms a secondary seal, ensuring that debris generated by the screw is blocked in the sealed space or inside the screw. This secondary seal prevents debris from moving to the side of the image sensor, ensuring the working effect of the vehicle-mounted camera.
[0018] 2. When the screw contacts the PCBA board for clamping, the annular clamping block moves into the gap between the first annular protrusion and the two second annular protrusions. The irregular structural design further blocks the debris generated by the screw, ensuring the stability of the device during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1This is a schematic diagram of a front cross-section of a novel vehicle-mounted camera provided according to an embodiment of the present utility model;
[0020] Figure 2 1 is a schematic diagram of a front cross-section of a blocking groove provided according to an embodiment of the present utility model;
[0021] Figure 3 This is a schematic diagram of a front cross-section of a positioning ring provided according to an embodiment of the present utility model;
[0022] Figure 4 It is a schematic diagram of a main cross-section of a screw provided according to an embodiment of the utility model.
[0023] In the figure: 1. Housing; 2. PCBA board; 3. Screw; 4. Positioning ring; 5. Through hole; 6. Blocking groove; 7. Annular ring; 8. Blocking block; 9. Annular clamping block; 10. First annular protrusion; 11. Second annular protrusion; 12. Image sensor; 13. Optical lens group; 14. UV fixing glue; 15. Cover. DETAILED DESCRIPTION
[0024] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.
[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0027] like Figure 1-Figure 4 As shown, the utility model provides a new type of vehicle-mounted camera, including a shell 1 and a PCBA board 2, a lens is provided at the bottom of the shell 1, a plurality of screws 3 are threadedly connected to the inner wall of the shell 1, a positioning ring 4 is provided on the inner wall of the shell 1 on the outside of the screw 3, and a through hole 5 matching the positioning ring 4 is provided on the PCBA board 2; a blocking groove 6 is provided on the top of the positioning ring 4, an annular ring 7 is provided on the outer wall of the screw 3, and a blocking block 8 matching the blocking groove 6 is provided at the bottom of the annular ring 7, when the screw 3 cooperates with the shell 1 to clamp the PCBA board 2, the blocking block 8 is located inside the blocking groove 6; an image sensor 12 is provided on one side of the outer wall of the PCBA board 2.
[0028] Specifically, when installing and fixing the PCBA board 2 and the shell 1 of the present application, first place the PCBA board 2 inside the shell 1, and align the positions of the multiple through holes 5 with the positions of the positioning rings 4, and then place the PCBA board 2 on the outside of the multiple positioning rings 4, and then pass the screw 3 through the inner side of the positioning ring 4 and threadedly connect it to the shell 1. As the screw 3 rotates, the annular ring 7 and the blocking block 8 are driven to move, so that the blocking block 8 moves close to the blocking groove 6. When the screw 3 moves to one side of the PCBA board 2, the screw 3 cooperates with the shell 1 to clamp and fix the upper and lower sides of the PCBA board 2. At this time, the blocking block 8 moves to the inside of the blocking groove 6. At this time, the shell 1 and the positioning The ring 4, the annular ring 7 and the screw 3 cooperate to form a sealed space, which not only positions the screw 3 but also blocks the debris generated when the screw 3 and the housing 1 rotate relative to each other. On this basis, the contact surface between the screw 3 and the top of the PCBA board 2 forms a second seal, ensuring that the debris generated by the screw 3 is blocked in the sealed space or inside the screw 3, thereby preventing the debris from moving to the side of the PCBA board 2 and the image sensor 12, ensuring the working effect of the vehicle-mounted camera; the utility model squeezes the screw 3 and the PCBA board 2 to form a primary seal, and the annular ring 7 and the positioning ring 4 to form a secondary seal, thereby improving the sealing of the debris space, double sealing, preventing debris from being brought out, and ensuring the image quality of the product.
[0029] In the present invention, the positioning ring 4, the blocking groove 6 and the blocking block 8 cooperate with each other. When the screw 3 is fixing the PCBA board 2, the housing 1, the positioning ring 4, the annular ring 7 and the screw 3 cooperate to form a sealed space. On this basis, the contact surface between the screw 3 and the top of the PCBA board 2 forms a second seal, ensuring that the debris generated by the screw 3 is blocked in the sealed space or on the inner side of the screw 3. The secondary seal prevents the debris from moving to the side of the image sensor 12, thereby ensuring the working effect of the vehicle-mounted camera.
[0030] In one embodiment, a cover 15 is detachably connected to the top of the shell 1, and the screw 3 is located between the cover 15 and the shell 1. The cover 15 is used to protect the PCBA board 2. Optionally, the shell 1 and the cover 15 are connected by welding.
[0031] like Figure 1-Figure 2 As shown, in one embodiment, an annular clamping block 9 is provided on the outer wall of the blocking block 8 close to the blocking groove 6, a first annular protrusion 10 is provided on one side of the inner wall of the blocking groove 6, and two second annular protrusions 11 are provided on the other side of the inner wall of the blocking groove 6, and the first annular protrusion 10 and the two second annular protrusions 11 are staggered.
[0032] Specifically, when the screw 3 clamps and fixes the PCBA board 2, the annular block 9 moves with the screw 3. When the screw 3 contacts the PCBA board 2 for clamping, the annular block 9 moves into the gap between the first annular protrusion 10 and the two second annular protrusions 11. Therefore, through the irregular structural design, the debris generated by the screw 3 is further blocked, thereby ensuring the stability of the device during operation; optionally, the first annular protrusion 10 and the second annular protrusion 11 are both made of elastic material. When the annular block 9 contacts the first annular protrusion 10 and the second annular protrusion 11, the first annular protrusion 10 and the second annular protrusion 11 can be slightly deformed to avoid affecting the movement of the annular block 9. Optionally, the material of the first annular protrusion 10 and the second annular protrusion 11 are both plastic, specifically Mitsubishi RENY-PAMXD6-1002H.
[0033] In one embodiment, the number of the screws 3 is two and they are distributed on both sides of the inner wall of the shell 1. According to the positions of the screws 3 and the positioning ring 4, the PCBA board 2 can be positioned. At the same time, it can assist in distinguishing the front and back sides of the PCBA board 2, flexibly select the positioning position, and increase the utilization efficiency of the PCBA board 2; optionally, one of the screws 3 is located at the upper left corner of the inner wall of the shell 1, and the other screw 3 is located at the lower right corner of the inner wall of the shell 1.
[0034] In one embodiment, the lens includes an optical lens group 13 , and the optical lens group 13 is fixedly connected to the housing 1 via UV fixing glue 14 .
[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A new type of vehicle-mounted camera, characterized in that: The invention comprises a housing (1) and a PCBA board (2), wherein a lens is provided at the bottom of the housing (1), a plurality of screws (3) are threadedly connected to the inner wall of the housing (1), a positioning ring (4) is provided on the inner wall of the housing (1) outside the screws (3), and a through hole (5) matching the positioning ring (4) is opened on the PCBA board (2); A blocking groove (6) is provided on the top of the positioning ring (4), an annular ring (7) is provided on the outer wall of the screw (3), and a blocking block (8) matching the blocking groove (6) is provided on the bottom of the annular ring (7). When the screw (3) and the housing (1) cooperate to clamp the PCBA board (2), the blocking block (8) is located inside the blocking groove (6).
2. A novel vehicle-mounted camera according to claim 1, characterized in that: The top of the shell (1) is detachably connected to a cover (15), and the screw (3) is located between the cover (15) and the shell (1).
3. The novel vehicle-mounted camera according to claim 1, characterized in that: An annular clamping block (9) is provided on the outer wall of the blocking block (8) on one side close to the blocking groove (6).
4. The novel vehicle-mounted camera according to claim 3, characterized in that: A first annular protrusion (10) is provided on one side of the inner wall of the blocking groove (6).
5. The novel vehicle-mounted camera according to claim 4, characterized in that: Two second annular protrusions (11) are provided on the other side of the inner wall of the blocking groove (6), and the first annular protrusion (10) and the two second annular protrusions (11) are arranged alternately.
6. The novel vehicle-mounted camera according to claim 5, characterized in that: The first annular protrusion (10) and the second annular protrusion (11) are both made of elastic material.
7. The novel vehicle-mounted camera according to claim 1, characterized in that: The number of the screws (3) is two and they are distributed on both sides of the inner wall of the housing (1).
8. The novel vehicle-mounted camera according to claim 1, characterized in that: The lens comprises an optical lens group (13), and the optical lens group (13) is fixedly connected to the housing (1) via UV fixing glue (14).
9. The novel vehicle-mounted camera according to claim 1, characterized in that: An image sensor (12) is provided on one side of the outer wall of the PCBA board (2).