A vehicle camera module packaging structure

Abstract

The utility model discloses a vehicle camera module packaging structure in the field of vehicle camera technology, aiming to solve the problem that the existing technology usually uses glue to connect and fix the lens and the base, and it is difficult for the staff to control the glue amount and distribution position of the glue, which is prone to glue leakage, insufficient glue, and glue overflow. It includes a lens, a shielding cover, a circuit board and a back cover, a chip is provided on the circuit board, and the lens is fixedly connected to the back cover; the glue of the utility model can flow into the inside of the annular groove along the slope for collection, so as to intuitively control the glue amount and avoid the situation of insufficient glue and glue leakage. Since the first connecting block is inclined, a small amount of glue is squeezed upward along the slope, and the remaining glue is squeezed downward along the slope, so as to avoid the situation of glue overflow, ensure the aesthetics of the device, and control the distribution of glue.

Description

Technical Field

[0001] The utility model relates to a vehicle-mounted camera module packaging structure, belonging to the technical field of vehicle-mounted cameras. Background Art

[0002] With the increase in the number of cars, traffic accidents are frequent. Improving the active safety of cars and developing smart driving cars are the trends of the future automobile industry, and the demand for various sensors on cars is increasing. The on-board camera has the functions of providing vehicle safety monitoring, accident recording and driving assistance, and is the core component of the car's intelligent driving perception system. The existing on-board camera consists of a front cover, an optical lens group LENS, a base, an image collection sensor, a digital processing sensor, an AI depth algorithm, a back cover, a connector, a wiring harness and other components. Its module packaging includes LENS, a base, a shielding shell, a PCB circuit board, and a back cover connection seal. However, in this process, poor packaging often occurs, such as the threaded connection running away and causing blurred images, AA connection glue leakage, overflow glue causing air leakage, appearance problems, bolt connection debris, offset causing black spots on the screen, center offset and other problems.

[0003] In the prior art of vehicle camera module packaging, the lens and the base are usually connected and fixed by glue. It is difficult for the staff to control the amount of glue and the distribution position, which is prone to problems such as glue leakage, insufficient glue, and glue overflow, affecting the working effect of the device. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a vehicle-mounted camera module packaging structure to solve the problem that the vehicle-mounted camera module packaging in the prior art usually uses glue to connect and fix the lens and the base. It is difficult for the staff to control the amount of glue and the distribution position, which easily leads to problems such as glue leakage, insufficient glue and glue overflow.

[0005] In order to solve the above technical problems, the utility model is implemented by adopting the following technical solutions:

[0006] The utility model provides a vehicle-mounted camera module packaging structure, comprising a lens, a shielding cover, a circuit board and a back cover, wherein a chip is arranged on the circuit board, and the lens is fixedly connected to the back cover. When the lens is fixedly connected to the back cover, the shielding cover and the circuit board are both arranged on the inner side of the back cover;

[0007] A first connecting block is provided on the top of the back cover, and a second connecting block matching the first connecting block is provided on the bottom of the lens. An annular groove is provided on the top of the first connecting block, and an annular protrusion matching the annular groove is provided on the bottom of the second connecting block. The inner sides of the first connecting block and the second connecting block are both tilted downward.

[0008] Furthermore, a plurality of extension grooves are provided on both sides of the inner wall of the annular groove, and extension blocks matching the extension grooves are provided on both sides of the outer wall of the annular protrusion.

[0009] Furthermore, when the lens is fixedly connected to the back cover, the shielding cover is located outside the circuit board, and the chip is located between the shielding cover and the circuit board, and the shielding cover is used to protect the circuit board and the chip.

[0010] Furthermore, a plurality of positioning pins are provided at the bottom of the second connecting block, and through holes matching the positioning pins are provided on the shielding cover and the outer wall of the circuit board.

[0011] Furthermore, a plurality of positioning blocks are provided on the top of the inner wall of the shielding cover.

[0012] Furthermore, a support block is provided at the bottom of the inner wall of the rear cover below the circuit board;

[0013] When the lens is fixedly connected to the back cover, the top of the support block contacts the bottom of the circuit board, the bottom of the second connecting block contacts the top of the shielding cover, the bottom of the positioning block contacts the top of the circuit board, and the support block cooperates with the second connecting block to fix the circuit board and the shielding cover.

[0014] Furthermore, the support block is in a circular ring shape.

[0015] Furthermore, when the lens is fixedly connected to the back cover, the bottom end of the positioning pin is located on one side of the supporting block.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The packaging structure of the vehicle-mounted camera module allows the glue to flow into the annular groove along the slope for collection, thereby intuitively controlling the amount of glue, avoiding insufficient glue and glue leakage, and ensuring the working effect of the device. Since the first connecting block is inclined, a small amount of glue is squeezed upward along the slope, and the remaining glue is squeezed downward along the slope, thereby avoiding the overflow of glue, ensuring the aesthetics of the device, and controlling the distribution of glue, further ensuring the working effect of the device;

[0018] 2. The present application uses the cooperation of the second connecting block and the supporting block to squeeze and fix the circuit board and the shielding cover from the upper and lower sides, and restrict the up and down movement of the two. The positioning pins and through holes are combined to perform all-round limiting work on the circuit board and the shielding cover. Different from the screw fixation in the prior art, the debris problem in the screw fixation can be prevented, thereby ensuring the image quality of the product; at the same time, the present application uses the positioning pins and through holes for positioning work, and the positioning position can be flexibly selected, thereby increasing the available space of the circuit board, reducing the product size, and facilitating the realization of miniaturized design;

[0019] 3. The present application disassembles the base in the prior art, wherein part of the base is integrally formed with the lens, and the remaining base is integrally formed with the back cover. At the same time, the entire base has only five parts, and only needs to be fixed with glue, thereby reducing the number of parts and the manufacturing process, blocking the passage of external water, air, light, etc., and preventing infiltration, thereby effectively improving product quality and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of an exploded structure of a vehicle-mounted camera module packaging structure provided according to an embodiment of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of a back cover provided according to an embodiment of the utility model;

[0022] Figure 3 It is a front cross-sectional schematic diagram of a vehicle-mounted camera module packaging structure provided according to an embodiment of the utility model;

[0023] Figure 4 yes Figure 3 The enlarged schematic diagram of point A in the middle;

[0024] Figure 5 yes Figure 3 The enlarged schematic diagram of point B in the middle;

[0025] Figure 6 is a schematic diagram of a front cross-section of a lens provided according to an embodiment of the utility model;

[0026] Figure 7 It is a front cross-sectional schematic diagram of a back cover provided according to an embodiment of the utility model.

[0027] In the figure: 1. lens; 2. shielding cover; 3. circuit board; 4. back cover; 5. chip; 6. first connecting block; 7. second connecting block; 8. annular groove; 9. annular protrusion; 10. positioning pin; 11. through hole; 12. support block; 13. positioning block. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0029] In the description of the present utility model, 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 a limitation on the present utility model. 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 technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0031] like Figure 1-7 As shown, the utility model provides a vehicle-mounted camera module packaging structure, including a lens 1, a shielding cover 2, a circuit board 3 and a back cover 4, the circuit board 3 is provided with a chip 5, the lens 1 is fixedly connected to the back cover 4, when the lens 1 is fixedly connected to the back cover 4, the shielding cover 2 and the circuit board 3 are both arranged on the inner side of the back cover 4; a first connecting block 6 is provided on the top of the back cover 4, a second connecting block 7 matching the first connecting block 6 is provided on the bottom of the lens 1, an annular groove 8 is provided on the top of the first connecting block 6, an annular protrusion 9 matching the annular groove 8 is provided on the bottom of the second connecting block 7, and the inner sides of the first connecting block 6 and the second connecting block 7 are both tilted downward.

[0032] Specifically, when assembling the device, the circuit board 3 is first placed on the inner side of the back cover 4, and then the shielding cover 2 is placed on the upper outer side of the circuit board 3. At this time, the staff performs glue dispensing on the top of the first connecting block 6. Since the first connecting block 6 and the second connecting block 7 are both sloped with a high outside and a low inside, the glue dispensing work is performed from the outside of the first connecting block 6, so that the glue can flow into the inside of the annular groove 8 along the slope for collection, thereby intuitively controlling the amount of glue, avoiding insufficient glue and glue leakage, and ensuring the working effect of the device; when the glue dispensing work is completed, the positions of the annular groove 8 and the annular protrusion 9 are aligned, and then the second connecting block 7 is assembled with the first connecting block 6. At this time, the annular protrusion 9 moves to the inside of the annular groove 8 to squeeze out the glue in the annular groove 8. Since the first connecting block 6 is tilted, a small amount of glue is squeezed upward along the slope, and the remaining glue is squeezed downward along the slope, thereby avoiding the overflow of glue, ensuring the aesthetics of the device, and controlling the distribution of glue, further ensuring the working effect of the device; optionally, the tilt angle is 5°.

[0033] like Figure 2 As shown, in one embodiment, a plurality of extension grooves are provided on both sides of the inner wall of the annular groove 8, and extension blocks matching the extension grooves are provided on both sides of the outer wall of the annular protrusion 9. The area of ​​the annular groove 8 is enlarged by the extension grooves, so that the annular groove 8 can store more glue. At the same time, the cooperation between the extension grooves and the extension blocks can limit the angle between the first connecting block 6 and the second connecting block 7, and ensure the coaxiality between the lens 1 and the back cover 4, further ensuring the stability of the two when they are fixed.

[0034] In one embodiment, when the lens 1 is fixedly connected to the back cover 4, the shielding cover 2 is located on the outside of the circuit board 3, and the chip 5 is located between the shielding cover 2 and the circuit board 3. The shielding cover 2 is used to protect the circuit board 3 and the chip 5, thereby ensuring the stability of the device during operation.

[0035] like Figure 1-3As shown, in one embodiment, a plurality of positioning pins 10 are provided at the bottom of the second connecting block 7, and the outer walls of the shielding cover 2 and the circuit board 3 are provided with through holes 11 matching the positioning pins 10; a plurality of positioning blocks 13 are provided at the top of the inner wall of the shielding cover 2; a supporting block 12 is provided at the bottom of the inner wall of the back cover 4 below the circuit board 3; when the lens 1 is fixedly connected to the back cover 4, the top of the supporting block 12 contacts the bottom of the circuit board 3, the bottom of the second connecting block 7 contacts the top of the shielding cover 2, the bottom of the positioning block 13 contacts the top of the circuit board 3, and the supporting block 12 cooperates with the second connecting block 7 to fix the circuit board 3 and the shielding cover 2; when the lens 1 is fixedly connected to the back cover 4, the bottom end of the positioning pin 10 is located on one side of the supporting block 12.

[0036] Specifically, in the prior art, screws are usually used to fix the shielding cover 2 and the circuit board 3. In the present application, when assembling the present application, after aligning the positioning pin 10 with the position of the through hole 11, when fixing the second connecting block 7 with the first connecting block 6, the positioning pin 10 passes through the through hole 11 on the shielding cover 2 and the through hole 11 on the circuit board 3 in turn, and then extends to one side of the support block 12 to prevent the shielding cover 2 and the circuit board 3 from shaking left and right, thereby limiting the lateral movement of the two; when the shielding cover 2 is placed above the circuit board 3, the bottom of the positioning block 13 contacts the top of the circuit board 3, thereby limiting the two and preventing the shielding cover 2 from squeezing the chip 5; then the second connecting block 7 is It is fixed with the first connecting block 6, the bottom of the second connecting block 7 contacts with the top of the shielding cover 2, the top of the support block 12 contacts with the bottom of the circuit board 3, and the support block 12 cooperates with the second connecting block 7 to squeeze and fix the circuit board 3 and the shielding cover 2 from the upper and lower sides, and limit the up and down movement of the two. Combined with the positioning pin 10 and the through hole 11, the circuit board 3 and the shielding cover 2 are fully limited. Different from the screw fixation in the prior art, the debris problem in the screw fixation can be prevented, thereby ensuring the image quality of the product; at the same time, the present application performs positioning through the positioning pin 10 and the through hole 11, and the positioning position can be flexibly selected, thereby increasing the available space of the circuit board 3, reducing the product size, and being conducive to realizing miniaturized design.

[0037] like Figure 1 and Figure 7 As shown, in one embodiment, the support block 12 is in the shape of a circular ring. Optionally, the support block 12 includes a plurality of evenly distributed crescent-shaped blocks.

[0038] like Figure 1As shown, in one embodiment, the present application splits the base in the prior art, wherein part of the base is integrally formed with the lens 1, and the remaining base is integrally formed with the back cover 4. At the same time, the entire base has only five parts, and only needs to be fixed with glue, thus reducing the number of parts and the manufacturing process, blocking the passage of external water, air, light, etc., and preventing infiltration, thereby effectively improving product quality and service life.

[0039] 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 protection scope of the present invention.

Claims

1. A vehicle camera module packaging structure, characterized in that: Comprising a lens (1), a shielding cover (2), a circuit board (3) and a back cover (4); the circuit board (3) is provided with a chip (5); the lens (1) is fixedly connected to the back cover (4); when the lens (1) is fixedly connected to the back cover (4), the shielding cover (2) and the circuit board (3) are both arranged on the inner side of the back cover (4); A first connecting block (6) is provided at the top of the back cover (4), and a second connecting block (7) matching the first connecting block (6) is provided at the bottom of the lens (1). An annular groove (8) is provided at the top of the first connecting block (6), and an annular protrusion (9) matching the annular groove (8) is provided at the bottom of the second connecting block (7). The inner sides of the first connecting block (6) and the second connecting block (7) are both arranged to be tilted downward.

2. The vehicle-mounted camera module packaging structure according to claim 1, characterized in that: A plurality of extension grooves are provided on both sides of the inner wall of the annular groove (8), and extension blocks matching the extension grooves are provided on both sides of the outer wall of the annular protrusion (9).

3. The vehicle-mounted camera module packaging structure according to claim 1, characterized in that: When the lens (1) is fixedly connected to the back cover (4), the shielding cover (2) is located outside the circuit board (3), and the chip (5) is located between the shielding cover (2) and the circuit board (3); the shielding cover (2) is used to protect the circuit board (3) and the chip (5).

4. The vehicle-mounted camera module packaging structure according to claim 1, characterized in that: A plurality of positioning pins (10) are provided at the bottom of the second connection block (7), and through holes (11) matching the positioning pins (10) are provided on the outer walls of the shielding cover (2) and the circuit board (3).

5. The vehicle-mounted camera module packaging structure according to claim 4, characterized in that: A plurality of positioning blocks (13) are provided on the top of the inner wall of the shielding cover (2).

6. The vehicle-mounted camera module packaging structure according to claim 5, characterized in that: A support block (12) is provided at the bottom of the inner wall of the rear cover (4) below the circuit board (3); When the lens (1) is fixedly connected to the back cover (4), the top of the support block (12) contacts the bottom of the circuit board (3), the bottom of the second connection block (7) contacts the top of the shielding cover (2), the bottom of the positioning block (13) contacts the top of the circuit board (3), and the support block (12) cooperates with the second connection block (7) to fix the circuit board (3) and the shielding cover (2).

7. The vehicle-mounted camera module packaging structure according to claim 6, characterized in that: The support block (12) is in the shape of a circular ring.

8. The vehicle-mounted camera module packaging structure according to claim 6, characterized in that: When the lens (1) is fixedly connected to the back cover (4), the bottom end of the positioning pin (10) is located on one side of the support block (12).

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