A vehicle-mounted camera module structure

Abstract

The utility model discloses a vehicle -mounted camera module structure, include: including rear shell, waterproof seal ring, heat dissipation silica gel, RFPC board, screw, first shading part, second shading part, narrowband glass and all -pass glass, and RFPC board has integrated VCSEL board, TOF camera module and RGB module. Compared with prior art, the structure has been simplified, through the narrowband glass and all -pass glass design into whole piece type structure, saved the front shell, a waterproof seal ring and multiple screws in traditional structure, reduced the spare quantity, reduced production and assembly cost, reduced the mounting procedure of front shell and additional glass, simplified the assembly flow, improved production efficiency, through setting first shading part and second shading part, effectively blocked the light path between VCSEL board and TOF lens, improved the precision and stability of TOF detection, the setting of heat dissipation silica gel enhanced the heat dissipation capacity of module, guaranteed that each electronic component works under the suitable temperature, prolonged the service life of module.

Description

Technical Field

[0001] This utility model relates to the field of vehicle electronic equipment technology, and in particular to a vehicle camera module structure. Background Technology

[0002] With the rapid development of automotive intelligence, in-vehicle cameras, as key components of autonomous driving and assisted driving systems, directly affect vehicle driving safety and user experience through their performance and structural design. Currently, in-vehicle camera modules with TOF (Time-of-Flight) functionality typically suffer from problems such as complex structure, numerous parts, and cumbersome assembly processes. Furthermore, crosstalk can easily occur between the VCSEL (Vertical-Cavity Surface-Emitting Laser) and the TOF lens, affecting detection accuracy.

[0003] In existing technologies, the structure of a vehicle-mounted camera module with TOF generally includes a rear shell, two waterproof sealing rings, an RFPC board, a front shell, multiple screws, three pieces of glass, and rubber plugs. The glass uses a segmented design, requiring the front and rear shells to fit together for fixation. This results in a large number of parts, increasing production costs, complicating the assembly process, and reducing production efficiency. Furthermore, due to the lack of a dedicated light-shielding structure, the light emitted by the VCSEL can easily interfere with the TOF lens's reception, posing a risk of light crosstalk and affecting the ranging accuracy of the TOF function.

[0004] Therefore, there is a need for a vehicle camera module structure that is simpler in structure, easier to assemble, and can effectively solve the problem of light crosstalk. Utility Model Content

[0005] In view of the above-mentioned shortcomings in the prior art, the present invention provides a vehicle-mounted camera module structure to solve the problems mentioned in the background art.

[0006] To achieve the aforementioned utility model objectives, the present utility model adopts a vehicle-mounted camera module structure, comprising a rear shell, a waterproof sealing ring, heat-dissipating silicone, an RFPC board, screws, a first light-shielding component, a second light-shielding component, narrow-band glass, and a full-through glass. The RFPC board integrates a VCSEL board, a TOF camera module, and an RGB module. The first and second light-shielding components are both black silicone with adhesive backing. The narrow-band glass and the full-through glass are combined into a single piece, and the edge of this single piece is connected to the front edge of the rear shell. The first and second light-shielding components are adhered to the RFPC board with adhesive backing to block light leakage between the VCSEL board and the TOF lens. The RFPC board is attached to the inner wall of the rear shell with heat-dissipating silicone and fixed inside the rear shell with screws.

[0007] As a further description of the above technical solution, the inner sidewall of the rear shell is provided with a groove for accommodating the RFPC board, the RFPC board is embedded in the groove, and heat dissipation silicone is filled between the RFPC board and the groove.

[0008] As a further description of the above technical solution, the upper inner wall of the rear shell has an annular sealing groove, and the waterproof sealing ring is embedded in the annular sealing groove.

[0009] As a further description of the above technical solution, a first mounting position is provided on the edge of the RFPC board corresponding to the VCSEL board, and the first light-shielding member is attached to the first mounting position with adhesive backing; a second mounting position is provided on the edge of the RFPC board corresponding to the TOF camera module, and the second light-shielding member is attached to the second mounting position with adhesive backing, and a gap is left between the first light-shielding member and the second light-shielding member.

[0010] As a further description of the above technical solution, both the narrow-band glass and the full-through glass have waterproof adhesive backing, and the narrow-band glass is located on the side away from the RFPC board, while the full-through glass is located on the side closer to the RFPC board.

[0011] As a further description of the above technical solution, the narrowband glass is a 940nm wavelength filter.

[0012] As a further description of the above technical solution, the all-through glass is a filter with a wavelength range of 440-960nm.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The structure has been simplified by designing the narrow-band glass and the full-length glass as a single piece, eliminating the front shell, a waterproof seal, and multiple screws found in traditional structures, thus reducing the number of parts and lowering production and assembly costs.

[0015] The installation process for the front shell and additional glass has been reduced, simplifying the assembly process and improving production efficiency.

[0016] By setting up a first light-blocking component and a second light-blocking component, the light transmission path between the VCSEL plate and the TOF lens is effectively blocked, thereby improving the accuracy and stability of TOF detection.

[0017] The application of thermal silicone enhances the module's heat dissipation capabilities, ensuring that all electronic components operate at suitable temperatures and extending the module's lifespan. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a vehicle-mounted camera module according to the present invention;

[0019] Figure 2 This is a cross-sectional view of the structure of a vehicle-mounted camera module according to this utility model;

[0020] Figure 3 This is an exploded view of the structure of a vehicle-mounted camera module according to this utility model;

[0021] As shown in the figure:

[0022] 1. Back cover; 2. Waterproof sealing ring; 3. Thermal silicone; 4. RFPC board; 5. Screws; 6. First light shield; 7. Second light shield; 8. Narrow-band glass; 9. Full-length glass. Detailed Implementation

[0023] To make the technical means, creative features, and objectives of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front," "rear," "both sides," "one side," and "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figures 1 to 3As shown, a vehicle-mounted camera module structure includes a rear shell 1, a waterproof sealing ring 2, thermal silicone 3, an RFPC board 4, screws 5, a first light-shielding component 6, a second light-shielding component 7, a narrow-band glass 8, and a full-through glass 9. The RFPC board 4 integrates a VCSEL board, a TOF camera module, and an RGB module. The first light-shielding component 6 and the second light-shielding component 7 are both black silicone with adhesive backing. The narrow-band glass 8 and the full-through glass 9 are combined into a single piece of structure, and the edge of this single piece of structure is connected to the front edge of the rear shell 1. The first light-shielding component 6 and the second light-shielding component 7 are attached to the RFPC board 4 with adhesive backing to block light leakage between the VCSEL board and the TOF lens. The RFPC board 4 is attached to the inner wall of the rear shell 1 by the thermal silicone 3 and is fixed inside the rear shell 1 by screws 5.

[0027] The above-mentioned structure simplifies the overall module structure, makes assembly more convenient, and effectively improves anti-crossing light performance.

[0028] The inner wall of the rear shell 1 is provided with a groove for accommodating the RFPC board 4. The RFPC board 4 is embedded in the groove, and the heat dissipation silicone 3 is filled between the RFPC board 4 and the groove. This allows the heat generated by the RFPC board 4 during operation to be quickly conducted to the rear shell 1 and then dissipated to the external environment through the rear shell 1, effectively reducing the operating temperature of the module and improving its service life.

[0029] The upper inner wall of the rear shell 1 has an annular sealing groove, and the waterproof sealing ring 2 is embedded in the annular sealing groove to seal and prevent dust, water vapor and other substances from entering the module, thus ensuring the working stability of the module.

[0030] The RFPC board 4 has a first mounting position at the edge corresponding to the VCSEL board, and the first light-shielding member 6 is attached to the first mounting position with adhesive. The RFPC board 4 has a second mounting position at the edge corresponding to the TOF camera module, and the second light-shielding member 7 is attached to the second mounting position with adhesive. A gap is left between the first light-shielding member 6 and the second light-shielding member 7. The first light-shielding member 6 is attached to the first mounting position of the RFPC board 4 with adhesive, that is, at the edge of the VCSEL board. The second light-shielding member 7 is attached to the second mounting position of the RFPC board 4 with adhesive, that is, at the edge of the TOF camera module. The gap between the two avoids mutual interference and works together to block the light path between the VCSEL board and the TOF lens to prevent light leakage.

[0031] Both the narrow-band glass 8 and the full-through glass 9 have waterproof adhesive backing, with the narrow-band glass 8 located on the side away from the RFPC board 4 and the full-through glass 9 located on the side closer to the RFPC board 4.

[0032] Among them, the narrowband glass 8 is a 940nm band filter, which can only allow infrared light in the 940nm band to pass through. This band is the specific band required for TOF detection, ensuring the detection accuracy of the TOF camera module.

[0033] Among them, the all-through glass 9 is a filter with a wavelength of 440-960nm, which allows visible light and some infrared light to pass through, meeting the imaging requirements of the RGB module.

[0034] It should be noted that this utility model provides a vehicle-mounted camera module structure. During assembly, firstly, the waterproof sealing ring 2 is embedded in the annular sealing groove on the rear shell 1; then, the heat dissipation silicone 3 is laid on the groove on the inner side of the rear shell 1; next, the RFPC board 4 is placed on the heat dissipation silicone 3, so that the RFPC board 4 is embedded in the groove of the rear shell 1, and the screw 5 is threadedly connected to the threaded hole on the inner side of the rear shell 1 to fix the RFPC board 4; then, the first light-shielding member 6 is pasted to the first mounting position on the edge of the RFPC board 4 corresponding to the VCSEL board using adhesive, and the second light-shielding member 7 is pasted to the second mounting position on the edge of the RFPC board 4 corresponding to the TOF camera module using equipment; finally, the narrow strip glass 8 with waterproof adhesive is attached to the full-through glass 9, ensuring complete pressing, and then the full-through glass 9 with waterproof adhesive is attached to the rear shell 1, and pressed with equipment to ensure complete attachment, thus completing the assembly.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted camera module structure, comprising a rear shell (1), a waterproof sealing ring (2), heat dissipation silicone (3), an RFPC board (4), screws (5), a first light shield (6), a second light shield (7), a narrow-band glass (8), and a full-through glass (9), wherein the RFPC board (4) integrates a VCSEL board, a TOF camera module, and an RGB module, and the first light shield (6) and the second light shield (7) are both black silicone with adhesive backing; the narrow-band glass (8) and the full-through glass (9) are combined into a single piece of structure, and the edge of the single piece of structure is connected to the front edge of the rear shell (1), the first light shield (6) and the second light shield (7) are attached to the RFPC board (4) with adhesive backing to block light leakage between the VCSEL board and the TOF lens; the RFPC board (4) is attached to the inner wall of the rear shell (1) with heat dissipation silicone (3) and fixed inside the rear shell (1) with screws (5).

2. The vehicle-mounted camera module structure according to claim 1, characterized in that: The inner wall of the rear shell (1) is provided with a groove for accommodating the RFPC board (4), the RFPC board (4) is embedded in the groove, and the heat dissipation silicone (3) is filled between the RFPC board (4) and the groove.

3. The vehicle-mounted camera module structure according to claim 1, characterized in that: The upper inner wall of the rear shell (1) has an annular sealing groove, and the waterproof sealing ring (2) is embedded in the annular sealing groove.

4. The vehicle-mounted camera module structure according to claim 1, characterized in that: The RFPC board (4) has a first mounting position at the edge corresponding to the VCSEL board, and the first light-shielding member (6) is attached to the first mounting position with adhesive backing; the RFPC board (4) has a second mounting position at the edge corresponding to the TOF camera module, and the second light-shielding member (7) is attached to the second mounting position with adhesive backing, and a gap is left between the first light-shielding member (6) and the second light-shielding member (7).

5. The vehicle-mounted camera module structure according to claim 1, characterized in that: Both the narrow-band glass (8) and the full-through glass (9) have waterproof adhesive backing, and the narrow-band glass (8) is located on the side away from the RFPC board (4), while the full-through glass (9) is located on the side closer to the RFPC board (4).

6. The vehicle-mounted camera module structure according to claim 1, characterized in that: The narrowband glass (8) is a 940nm wavelength filter.

7. The vehicle-mounted camera module structure according to claim 1, characterized in that: The all-through glass (9) is a filter with a wavelength range of 440-960nm.

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