Vehicle-mounted multi-camera assembly, assembly method and vehicle

Abstract

A vehicle-mounted multi-camera assembly (100), an assembly method, and a vehicle (1000). The vehicle-mounted multi-camera assembly (100) includes a bracket (10), a first circuit board (21), a second circuit board (22), a first lens (31), and a second lens (32); the first circuit board (21) and the second circuit board (22) are fixed on the bracket (10), and a first image sensor (41) is disposed on the first circuit board (21); a second image sensor (42) is disposed on the second circuit board (22), and the first circuit board (21), the second circuit board (22), the first lens (31), and the second lens (32) are directly fixed on the bracket (10), so that the structure of the vehicle-mounted multi-camera assembly (100) is simple, and the position deviation of the binocular camera formed by the first image sensor (41), the first lens (31), the second image sensor (42), and the second lens (32) is small, thereby improving the ranging accuracy of the binocular camera.

Description

Technical Field

[0001] This application relates to the field of vehicle technologies, and particularly to a vehicle-mounted multi-camera assembly, an assembly method, and a vehicle. Background Art

[0002] In the related art, a binocular camera forms a camera module by encapsulating a lens and an image sensor into a lens barrel, and then mounts the camera module on a binocular bracket. As a result, the structure of the binocular camera is complex, which easily causes a deviation in the positions of the two camera modules, resulting in a decrease in the ranging accuracy of the two camera modules. Summary of the Invention

[0003] This application provides a vehicle-mounted multi-camera assembly, an assembly method, and a vehicle.

[0004] This application provides a vehicle-mounted multi-camera assembly, where the vehicle-mounted multi-camera assembly includes a bracket, a first circuit board, a second circuit board, a first lens, and a second lens; the first circuit board is fixed on the bracket, and a first image sensor is disposed on the first circuit board; the second circuit board is fixed on the bracket, and a second image sensor is disposed on the second circuit board; the first lens is fixed on the bracket, and the first lens is aligned with the first image sensor; the second lens is fixed on the bracket, and the second lens is aligned with the second image sensor; wherein, the first lens, the first circuit board, and the first image sensor can form a first shooting assembly, the second lens, the second circuit board, and the second image sensor can form a second shooting assembly, the first shooting assembly and the second shooting assembly have an overlapping first observation range, and the first shooting assembly and the second shooting assembly are used to measure the distance between a scene object in the first observation range and itself.

[0005] The present application also provides an assembly method for assembling a vehicle-mounted multi-camera assembly. The vehicle-mounted multi-camera assembly includes a bracket, a first circuit board, a second circuit board, a first lens, and a second lens. A first image sensor is disposed on the first circuit board; a second image sensor is disposed on the second circuit board. The assembly method includes: fixing the first circuit board on the bracket; fixing the second circuit board on the bracket; fixing the first lens on the bracket, and aligning the first lens with the first image sensor; fixing the second lens on the bracket, and aligning the second lens with the second image sensor. Wherein, the first lens, the first circuit board, and the first image sensor can form a first shooting assembly, the second lens, the second circuit board, and the second image sensor can form a second shooting assembly. The first shooting assembly and the second shooting assembly have an overlapping first observation range, and the first shooting assembly and the second shooting assembly are used to measure the distance between a scene object in the first observation range and itself.

[0006] The present application also provides a vehicle, which includes a vehicle body and the above-mentioned vehicle-mounted multi-camera assembly, and the vehicle-mounted multi-camera assembly is installed on the vehicle body.

[0007] In the vehicle-mounted multi-camera assembly, assembly method, and vehicle of the present application, the first circuit board, the second circuit board, the first lens, and the second lens are directly fixed on the bracket, so that the structure of the vehicle-mounted multi-camera assembly is simple, and the position deviation of the binocular camera formed by the first image sensor, the first lens, the second image sensor, and the second lens is small, thereby improving the ranging accuracy of the binocular camera.

[0008] Some additional aspects and advantages of the present application will be given in the following description, some will become obvious from the following description, or will be understood through the practice of the present application. Description of the Drawings

[0009] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0010] Figures 1 to 5 is a schematic structural diagram of a vehicle-mounted multi-camera assembly according to some embodiments of the present application;

[0011] Figures 6 to 9 is a flowchart of an assembly method according to some embodiments of the present application;

[0012] Figures 10 to 12 is a schematic structural diagram of a vehicle-mounted multi-camera assembly according to some embodiments of the present application;

[0013] Figure 13 is a flowchart of an assembly method according to some embodiments of the present application;

[0014] Figures 14 to 17 is a schematic structural diagram of an in-vehicle multi-camera assembly according to some embodiments of the present application;

[0015] Figure 18 is a flowchart of an assembly method according to some embodiments of the present application;

[0016] Figure 19 is a schematic diagram of a vehicle according to some embodiments of the present application. Detailed Embodiments

[0017] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0018] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for facilitating the description of the present application 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 thus should not be construed as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0019] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0020] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application.

[0021] Please refer to Figures 1 to 5 , the present application provides a vehicle-mounted multi-camera assembly 100, which includes a bracket 10, a first circuit board 21, a second circuit board 22, a first lens 31, and a second lens 32; the first circuit board 21 is fixed on the bracket 10, and a first image sensor 41 is arranged on the first circuit board 21; the second circuit board 22 is fixed on the bracket 10, and a second image sensor 42 is arranged on the second circuit board 22; the first lens 31 is fixed on the bracket 10, and the first lens 31 is aligned with the first image sensor 41; the second lens 32 is fixed on the bracket 10, and the second lens 32 is aligned with the second image sensor 42; wherein, the first lens 31, the first circuit board 21, and the first image sensor 41 can form a first shooting assembly, the second lens 32, the second circuit board 22, and the second image sensor 42 can form a second shooting assembly, the first shooting assembly and the second shooting assembly have an overlapping first observation range, and the first shooting assembly and the second shooting assembly are used to measure the distance between the scene object in the first observation range and itself.

[0022] Please refer to Figure 6 , the assembly method of the embodiment of the present application is used to assemble the vehicle-mounted multi-camera assembly 100, which includes a bracket 10, a first circuit board 21, a second circuit board 22, a first lens 31, and a second lens 32, and a first image sensor 41 is arranged on the first circuit board 21; a second image sensor 42 is arranged on the second circuit board 22; the assembly method includes:

[0023] 001, fixing the first circuit board 21 on the bracket 10;

[0024] 002, fixing the second circuit board 22 on the bracket 10;

[0025] 003, fixing the first lens 31 on the bracket 10, and aligning the first lens 31 with the first image sensor 41;

[0026] 004, fixing the second lens 32 on the bracket 10, and aligning the second lens 32 with the second image sensor 42;

[0027] Among them, the first lens 31, the first circuit board 21, and the first image sensor 41 can form a first shooting assembly, the second lens 32, the second circuit board 22, and the second image sensor 42 can form a second shooting assembly. The first shooting assembly and the second shooting assembly have an overlapping first observation range, and the first shooting assembly and the second shooting assembly are used to measure the distance between the scene object in the first observation range and themselves.

[0028] The bracket 10 is rectangular as a whole. A plurality of positioning structures are formed on the upper side edge of the bracket 10. The bracket 10 can be installed at other positions through the plurality of positioning structures, and specifically, connection methods such as bolt connection, riveting, and gluing can be adopted.

[0029] The first circuit board 21 and the second circuit board 22 are fixed at symmetric positions on the left and right of the bracket 10 at a certain distance. The first image sensor 41 and the second image sensor 42 are respectively arranged on the first circuit board 21 and the second circuit board 22. The first lens 31 and the second lens 32 are cylindrical and are respectively aligned with the first image sensor 41 and the second image sensor 42. The first image sensor 41 and the second image sensor 42 can receive the images collected by the first lens 31 and the second lens 32, and fuse information such as vehicle speed and IMU to cooperate with the computing functions of the first circuit board 21 and the second circuit board 22 to implement a binocular vision-based perception scheme.

[0030] The first lens 31, the first circuit board 21, and the first image sensor 41 form a first shooting assembly, and the second lens 32, the second circuit board 22, and the second image sensor 42 form a second shooting assembly. Since the first lens 31 and the second lens 32 face the same direction and are spaced at a certain distance, and the field of view angles of the lenses are also the same, the image acquisition ranges of the first lens 31 and the second lens 32 will partially overlap. The overlapping part is called the first observation range, and the first shooting assembly and the second shooting assembly are used to measure the distance between the scene object in the first observation range and themselves.

[0031] In one embodiment, the first shooting assembly and the second shooting assembly can adopt a short-focus module camera or a long-focus module camera, and the arrangement manner of the first shooting assembly and the second shooting assembly on the bracket 10 is not fixed. Among them, when both the first shooting assembly and the second shooting assembly adopt short-focus module cameras, the overlapping first observation range is in the shape of a fat triangle extending along the width direction of the vehicle 1000, so as to be able to obtain a near-view field of view and an accurate near-view distance. When both the first shooting assembly and the second shooting assembly adopt long-focus module cameras, the overlapping second observation range is in the shape of a thin triangle extending along the length direction of the vehicle 1000, so as to be able to obtain a long-view field of view and an accurate long-view distance.

[0032] It should be noted that the first shooting component and the second shooting component can also be a combination of a wide-angle module camera, a close-up module camera, a medium-shot module camera, and a long-shot module camera. That is, by using the wide-angle module camera to shoot wide-angle videos and images, a larger range of scenery can be seen, while the close-up module camera focuses on shooting images and videos of the relatively close area (such as within 10 meters) of the vehicle 1000; the medium-shot module camera is slightly farther away than the close-up camera, such as the scenery at a distance of 10 - 50 meters from the vehicle 1000; and the long-shot module camera is even farther away, such as more than 50 meters. Generally speaking, the first shooting component and the second shooting component of the present application are not limited to the combination of a short-focus module camera and a long-focus module camera.

[0033] Among them, the number of the first shooting component and the second shooting component is not limited. The distance between the scene object within the measurement and observation range and the vehicle 1000 can be calculated through the overlapping area of the first shooting component and the second shooting component to improve the measurement accuracy.

[0034] In this way, the first circuit board 21, the second circuit board 22, the first lens 31, and the second lens 32 are directly fixed on the bracket 10, so that the structure of the vehicle-mounted multi-camera component 100 is simple, and the position deviation of the binocular camera formed by the first image sensor 41, the first lens 31, the second image sensor 42, and the second lens 32 is small, thereby improving the ranging accuracy of the binocular camera.

[0035] In some embodiments of the present application, the bracket 10 is provided with a first mounting portion 11 and a second mounting portion 12. The first mounting portion 11 is used to mount the first circuit board 21, and the second mounting portion 12 is used to mount the second circuit board 22.

[0036] Please refer to Figures 1 to 7 , in some embodiments of the present application, step 001 includes:

[0037] 0011, mounting the first circuit board 21 to the first mounting portion 11;

[0038] Step 002 includes:

[0039] 0021, mounting the second circuit board 22 to the second mounting portion 12.

[0040] Specifically, the bracket 10 is provided with a first mounting portion 11 and a second mounting portion 12.

[0041] The first mounting portion 11 and the second mounting portion 12 are respectively located on the left and right sides of the bracket 10. The first mounting portion 11 and the second mounting portion 12 may be formed with threaded holes, and the first circuit board 21 and the second circuit board 22 may be mounted to the first mounting portion 11 and the second mounting portion 12 by bolt connection.

[0042] Among them, the first mounting portion 11 is provided with a first circuit board 21, and the second mounting portion 12 is provided with a second circuit board 22.

[0043] The first mounting portion 11 and the second mounting portion 12 are symmetrically arranged on the bracket 10, and the first circuit board 21 located in the first mounting portion 11 and the second circuit board 22 located in the second mounting portion 12 are symmetrically arranged on the bracket 10.

[0044] In some embodiments of the present application, the first mounting portion 11 is provided with a first receiving groove 111, and / or the second mounting portion 12 is provided with a second receiving groove 121. The first circuit board 21 is arranged in the first receiving groove 111, and the second circuit board 22 is arranged in the second receiving groove 121.

[0045] Please refer to Figure 8 , in some embodiments of the present application, the first mounting portion 11 is provided with a first receiving groove 111, and / or the second mounting portion 12 is provided with a second receiving groove 121. Step 0011 includes:

[0046] 00111, arranging the first circuit board 21 in the first receiving groove 111;

[0047] Step 0021 includes:

[0048] 00211, arranging the second circuit board 22 in the second receiving groove 121.

[0049] The first receiving groove 111 and the second receiving groove 121 are two grooves formed on the first mounting portion 11 and the second mounting portion 12 respectively. The opening thickness matches the thickness of the circuit board, and structures such as buckles and limiting portions can be formed to achieve the function of fixing the circuit board. The first circuit board 21 and the second circuit board 22 are arranged in the first receiving groove 111 and the second receiving groove 121.

[0050] Please refer to Figure 1 and Figure 9 , in some embodiments of the present application, the bracket 10 is further provided with a first through hole 131 and a second through hole 132. The first through hole 131 is communicated with the first receiving groove 111, and the second through hole 132 is communicated with the second receiving groove 121. At least a part of the first lens 31 extends into the first through hole 131, and at least a part of the second lens 32 extends into the second through hole 132.

[0051] In some embodiments of the present application, the bracket 10 is further provided with a first through hole 131 and a second through hole 132. The first through hole 131 is communicated with the first receiving groove 111, and the second through hole 132 is communicated with the second receiving groove 121. Step 003 includes:

[0052] 0031, extending at least a part of the first lens 31 into the first through hole 131;

[0053] Step 004 includes:

[0054] 0041, inserting at least a part of the second lens 32 into the second through hole 132.

[0055] The first through hole 131 is opened on the bracket 10 at a position aligned with the first image sensor 41, and the first lens 31 is inserted into the first through hole 131 and aligned with the first image sensor 41. The first lens 31 is inserted into the first through hole 131, and the connection between the first lens 31 and the first through hole 131 can use two-component glue and adopt the AA process to fix the first lens 31.

[0056] The second through hole 132 is opened on the bracket 10 at a position aligned with the second image sensor 42, and the second lens 32 is inserted into the second through hole 132 and aligned with the second image sensor 42. The second lens 32 is inserted into the second through hole 132, and the connection between the second lens 32 and the second through hole 132 can use two-component glue and adopt the AA process to fix the second lens 32.

[0057] In this way, the deviation of lens installation can be reduced, and the measurement accuracy of the vehicle-mounted multi-camera structure can be improved.

[0058] Please refer to Figure 10 and Figure 11 , in some embodiments of the present application, the first receiving groove 111 further includes a first protrusion 1111 surrounding the first through hole 131, and the vehicle-mounted multi-camera assembly 100 further includes a first sealing member 51 sleeved on the first protrusion 1111. The first sealing member 51 is located between the first circuit board 21 and the bracket 10, and the first sealing member 51 surrounds the first image sensor 41 to seal the first image sensor 41; and / or the second receiving groove 121 further includes a second protrusion 1211 surrounding the second through hole 132, and the vehicle-mounted multi-camera assembly 100 further includes a second sealing member 52 sleeved on the second protrusion 1211. The second sealing member 52 is located between the second circuit board 22 and the bracket 10, and the second sealing member 52 surrounds the second image sensor 42 to seal the second image sensor 42.

[0059] In some embodiments of the present application, the first receiving groove 111 further includes a first protrusion 1111 surrounding the first through hole 131, and the vehicle-mounted multi-camera assembly 100 further includes a first sealing member 51 sleeved on the first protrusion 1111, and the first sealing member 51 is located between the first circuit board 21 and the bracket 10; and / or the second receiving groove 121 further includes a second protrusion 1211 surrounding the second through hole 132, and the vehicle-mounted multi-camera assembly 100 further includes a second sealing member 52 sleeved on the second protrusion 1211, and the second sealing member 52 is located between the second circuit board 22 and the bracket 10. The assembly method further includes:

[0060] 005, surround the first image sensor 41 with the first seal 51;

[0061] 006, surround the second image sensor 42 with the second seal 52.

[0062] The first protrusion 1111 spaces the first through hole 131 from the first circuit board 21. The first image sensor 41 is received in the spaced area. The first protrusion 1111 can support the first circuit board 21 and can also limit the position of the first lens 31 in the direction of extending into the first through hole 131.

[0063] The first seal 51 is in a ring shape, sleeved on the first protrusion 1111, surrounds the first image sensor 41, and closely adheres to the gap between the first protrusion 1111 and the first circuit board 21.

[0064] The second protrusion 1211 spaces the second through hole 132 from the second circuit board 22. The second image sensor 42 is received in the spaced area. The second protrusion 1211 can support the second circuit board 22 and can also limit the position of the second lens 32 in the direction of extending into the second through hole 132.

[0065] The second seal 52 is in a ring shape, sleeved on the second protrusion 1211, surrounds the second image sensor 42, and closely adheres to the gap between the second protrusion 1211 and the second circuit board 22.

[0066] In some embodiments of the present application, the first seal 51 and the second seal 52 include sealing rings.

[0067] Both the first seal 51 and the second seal 52 are in a ring shape and are an O-shaped sealing ring as a whole. The sealing ring can be made of rubber, fluororubber, silicone O-ring or other sealing components of other materials.

[0068] In this way, the sealing ring can fill and seal the gap, prevent external dust, water vapor or substances that can affect the vehicle-mounted multi-camera assembly from entering, and enhance the protection performance of the vehicle-mounted multi-camera device.

[0069] In some embodiments of the present application, the bracket 10 includes a first positioning member 14. Both the first circuit board 21 and the second circuit board 22 include a second positioning member 25. The first positioning member 14 and the second positioning member 25 are aligned and installed to mount the first circuit board 21 and the second circuit board 22 on the bracket 10.

[0070] In some embodiments of the present application, the bracket 10 includes a first positioning member 14. Both the first circuit board 21 and the second circuit board 22 include a second positioning member 25. The assembly method further includes:

[0071] 007, align and install the first positioning member 14 and the second positioning member 25.

[0072] The first circuit board 21 and the second circuit board 22 are mounted on the bracket 10 through the cooperation of the first positioning member 14 and the second positioning member 25.

[0073] For example, in one embodiment, the first positioning member 14 of the bracket 10 can be a plurality of positioning posts, and the second positioning member 25 on the circuit board is a plurality of positioning holes. The positions of the positioning holes and the positioning posts correspond one by one. The first circuit board 21 and the second circuit board 22 are fixed in position by inserting the positioning holes onto the positioning posts to achieve alignment and installation.

[0074] In another embodiment, the first positioning member 14 of the bracket 10 can be a plurality of buckles, and the second positioning member 25 on the circuit board is a plurality of slots. The positions of the buckles and the slots correspond one by one. The buckles of the bracket 10 can catch the slots of the circuit board to achieve alignment and installation.

[0075] It can be understood that the first positioning member 14 and the second positioning member 25 can also adopt other various structures such as spline connection, flat key connection, cylindrical pin connection, and clearance fit bolt connection, which will not be elaborated here.

[0076] In some embodiments of the present application, the bracket 10 includes a first assembly surface 151 for mounting the first circuit board 21 and a second assembly surface 152 for mounting the second circuit board 22, and the first assembly surface 151 and the second assembly surface 152 are in the same plane.

[0077] Please refer to Figure 10 , in some embodiments of the present application, the bracket 10 includes a first assembly surface 151 for mounting the first circuit board 21 and a second assembly surface 152 for mounting the second circuit board 22, and the assembly method further includes:

[0078] 008, adjust the first assembly surface 151 to be in the same plane as the second assembly surface 152.

[0079] If the first assembly surface 151 and the second assembly surface 152 are not in the same plane, it may affect image processing. Therefore, the first assembly surface 151 should be adjusted to be in the same plane as the second assembly surface 152.

[0080] When the first assembly surface 151 and the second assembly surface 152 are in the same plane, the first circuit board 21, the first image sensor 41, the first lens 31 and the second circuit board 22, the second image sensor 42, the second lens 32 have the same image acquisition parameters (image acquisition angle, acquisition range, etc.).

[0081] In some embodiments of the present application, the bracket 10 further includes a first connection surface 161 for mounting the first lens 31 and a second connection surface 162 for mounting the second lens 32. The first connection surface 161 is parallel to the first assembly surface 151 and the second assembly surface 152, and the second connection surface 162 is parallel to the first assembly surface 151 and the second assembly surface 152.

[0082] Please refer to Figure 3 and Figure 12 In some embodiments of the present application, the bracket 10 further includes a first connection surface 161 for mounting the first lens 31 and a second connection surface 162 for mounting the second lens 32. The assembly method further includes:

[0083] 009. Adjust the first connection surface 161 to be parallel to the first assembly surface 151 and the second assembly surface 152;

[0084] 010. Adjust the second connection surface 162 to be parallel to the first assembly surface 151 and the second assembly surface 152.

[0085] The first connection surface 161 is parallel to the first assembly surface 151 and the second assembly surface 152, ensuring that the optical axis of the lens is perpendicular to the first circuit board 21 when the first lens 31 is installed.

[0086] The second connection surface 162 is parallel to the first assembly surface 151 and the second assembly surface 152, ensuring that the optical axis of the lens is perpendicular to the second circuit board 22 when the second lens 32 is installed.

[0087] In some embodiments of the present application, the vehicle-mounted multi-camera assembly 100 further includes a connecting member 60. Both the first lens 31 and the second lens 32 are disposed on the bracket 10 through the connecting member 60.

[0088] In some embodiments of the present application, the vehicle-mounted multi-camera assembly 100 further includes a connecting member 60. The assembly method further includes:

[0089] 011. Dispose the first lens 31 and the second lens 32 on the bracket 10 through the connecting member 60.

[0090] The connecting member 60 is in a cylindrical cup shape. One side accommodates the lens, and the other side forms an opening extending into the through hole to align with the image sensor.

[0091] The connecting member 60 and the through hole can be fixed by means such as threaded connection and glue filling.

[0092] In some embodiments of the present application, the bracket 10 includes a first connection surface 161 for mounting the first lens 31 and a second connection surface 162 for mounting the second lens 32. The first connection surface 161 and the second connection surface 162 are in the same plane.

[0093] The first connection surface 161 and the second connection surface 162 are in the same plane and are both parallel to the first assembly surface 151 and the second assembly surface 152, ensuring that the central axes of the first lens 31 and the second lens 32 are parallel.

[0094] In some embodiments of the present application, the bracket 10 includes a first connection surface 161 for mounting the first lens 31 and a second connection surface 162 for mounting the second lens 32. The roughness of the first connection surface 161 and the roughness of the second connection surface 162 are both greater than a preset roughness.

[0095] Roughness refers to the unevenness of a machined surface with smaller spacing and minute peaks and valleys.

[0096] The roughness of the first connection surface 161 and the roughness of the second connection surface 162 are both greater than the preset roughness, such that there will be a very small gap when the first lens 31 and the second lens 32 are mounted on the first connection surface 161 and the second connection surface 162, and the gap can be filled with glue.

[0097] In this way, implementing flatness control (i.e., adjusting the connection surface, assembly surface, and surface roughness to the specified range) can reduce the installation error and improve the installation stability of the device and the measurement performance of the vehicle-mounted multi-camera assembly.

[0098] In some embodiments of the present application, the vehicle-mounted multi-camera assembly 100 further includes a rear cover 70, and the rear cover 70 is connected to the bracket 10.

[0099] In some embodiments of the present application, the vehicle-mounted multi-camera assembly 100 further includes a rear cover 70, and the assembly method further includes:

[0100] 012, connecting the rear cover 70 to the bracket 10.

[0101] The rear cover 70 is mounted on the side of the bracket 10 opposite to the first lens 31 and the second lens 32. The rear cover 70 and the bracket 10 cooperate to accommodate the first circuit board 21, the second circuit board 22, the first sensor, and the second sensor between the rear cover 70 and the bracket 10.

[0102] In some embodiments of the present application, the bracket 10 is provided with a first positioning portion 17, and the rear cover 70 is provided with a second positioning portion 71. The first positioning portion 17 and the second positioning portion 71 are cooperatively mounted to mount the rear cover 70 on the bracket 10.

[0103] In some embodiments of the present application, characterized in that the bracket 10 is provided with a first positioning portion 17, and the rear cover 70 is provided with a second positioning portion 71, and the assembly method further includes:

[0104] 013, cooperatively mounting the first positioning portion 17 and the second positioning portion 71.

[0105] For example, in one embodiment, the first positioning portion 17 of the bracket 10 can be a plurality of screw holes, and the second positioning portion 71 on the back cover 70 can be a plurality of positioning holes. The positioning holes correspond to the screw holes one by one, and the positioning holes and the screw holes are fixed by bolts or screws to achieve the coordinated installation of the back cover 70 and the bracket 10.

[0106] In another embodiment, the first positioning portion 17 of the bracket 10 can be a plurality of clips, and the second positioning portion 71 on the back cover 70 can be a plurality of slots. The positions of the clips and the slots correspond one to one. The clips of the bracket 10 can be clamped in the slots of the back cover 70 to achieve aligned installation.

[0107] It is understandable that the first positioning member 14 and the second positioning member 25 may also adopt other structures such as bonding, spline connection, flat key connection, cylindrical pin connection, etc., which will not be described in detail here.

[0108] In certain embodiments of the present application, the back cover 70 includes a heat-conducting component 72, and the heat-conducting component 72 is used to dissipate the heat generated when the first shooting component and the second shooting component are working.

[0109] In one embodiment, the heat-conducting component 72 on the back cover 70 can adopt a heat-conducting boss structure, and two or more cylindrical bosses extend from the inside of the back cover 70 (towards the side of the circuit board). The bosses are in close contact with the first circuit board 21 and the second circuit board 22. When the circuit boards generate heat, part of the heat is conducted to the back cover 70 for heat dissipation.

[0110] In other embodiments, the thermally conductive boss may also cooperate with thermally conductive materials to achieve the function of thermal conduction and heat dissipation, for example, by filling thermally conductive glue, thermally conductive grease, etc. between the thermally conductive boss and the circuit board.

[0111] In certain embodiments of the present application, the first circuit board 21 includes a first mounting surface 211 and a first heat dissipation surface 212 opposite to each other, the first image sensor 41 is arranged on the first mounting surface 211, and a first copper exposed area 213 is formed on the first heat dissipation surface 212 at a position corresponding to the first image sensor 41. When the back cover 70 is installed on the bracket 10, the thermal conductive component 72 is connected to the first copper exposed area 213 to conduct the temperature of the first image sensor 41 and / or the first circuit board 21 to the outside; and / or the second circuit board 22 includes a second mounting surface 221 and a second heat dissipation surface 222 opposite to each other, the second image sensor 42 is arranged on the second mounting surface 221, and a second copper exposed area 223 is formed on the second heat dissipation surface 222 at a position corresponding to the second image sensor 42. When the back cover 70 is installed on the bracket 10, the thermal conductive component 72 is connected to the second copper exposed area 223 to conduct the temperature of the second image sensor 42 and / or the second circuit board 22 to the outside.

[0112] The first circuit board 21 includes a first mounting surface 211 and a first heat dissipation surface 212 facing away from each other, where the first mounting surface 211 is the side of the first circuit board 21 facing the first through hole 131, and the first heat dissipation surface 212 is the side of the first circuit board 21 facing the rear cover 70. The first image sensor 41 is disposed on the first mounting surface 211, and a first copper exposed area 213 is formed at a position corresponding to the first image sensor 41 on the first heat dissipation surface 212. The heat conducting component 72 can dissipate heat from the first copper exposed area 213.

[0113] The second circuit board 22 includes a second mounting surface 221 and a second heat dissipation surface 222 facing away from each other, where the second mounting surface 221 is the side of the second circuit board 22 facing the second through hole 132, and the second heat dissipation surface 222 is the side of the second circuit board 22 facing the rear cover 70. The second image sensor 42 is disposed on the second mounting surface 221, and a second copper exposed area 223 is formed at a position corresponding to the second image sensor 42 on the second heat dissipation surface 222. The heat conducting component 72 can dissipate heat from the second copper exposed area 223.

[0114] In some embodiments of the present application, the rear cover 70 includes a rear cover body 73, and the heat conducting component 72 protrudes from the rear cover body 73; when the rear cover 70 is mounted on the bracket 10, the first circuit board 21 and the second circuit board 22 are spaced apart from the rear cover body 73 by a preset distance.

[0115] In some embodiments of the present application, the rear cover 70 includes a rear cover body 73, and the heat conducting component 72 protrudes from the rear cover body 73; the assembling method further includes:

[0116] 014, when the rear cover 70 is mounted on the bracket 10, the first circuit board 21 and the second circuit board 22 are spaced apart from the rear cover body 73 by a preset distance.

[0117] The rear cover 70 includes a rear cover body 73, the heat conducting component 72 faces the bracket 10 and protrudes from the rear cover body 73, and a limiting structure can be formed on the bracket 10 to limit the heat conducting component 72 to prevent the rear cover body 73 from directly contacting the circuit board.

[0118] The first circuit board 21 and the second circuit board 22 are spaced apart from the rear cover body 73 by a preset distance, and the heat conducting component 72 is in direct contact with the first circuit board 21 and the second circuit board 22.

[0119] In this way, a gap is formed between the circuit board and the rear cover body 73, improving the internal heat dissipation capacity.

[0120] In some embodiments of the present application, the heat conducting component 72 is integrally formed with the rear cover body 73; and / or, the heat conducting component 72 is detachably connected to the rear cover body 73.

[0121] If the heat-conducting component 72 is integrally formed with the back cover body 73, the back cover 70 should be made of a material with better heat conductivity, such as copper alloy, silicon aluminum alloy and other materials.

[0122] If the heat-conducting component 72 is detachably connected to the back cover body 73, the heat-conducting component 72 should be made of a material with better heat conductivity, while the back cover body 73 can be made of other materials (but still need to ensure sufficient heat dissipation performance).

[0123] In some embodiments of the present application, the back cover 70 is provided with an output interface 74, and the output interface 74 is electrically connected to the photographing component.

[0124] In some embodiments of the present application, the back cover 70 is provided with an output interface 74, and the assembly method further includes:

[0125] 015, electrically connecting the output interface 74 to the photographing component.

[0126] The back cover 70 is provided with an output interface 74, and the output interface 74 is electrically connected to the photographing component. The output interface 74 can transmit the data collected and processed by the photographing component to other devices (such as a central control display screen).

[0127] For example, in one embodiment, an interface installation groove may be provided on the back cover 70, and the output interface 74 is embedded in the interface installation groove. Of course, the output interface 74 can also be integrally formed with the back cover 70 by injection molding, and the present application does not impose any restrictions.

[0128] In some embodiments of the present application, the number of output interfaces 74 matches the number of photographing components, so that each photographing component is correspondingly connected to the output interface 74.

[0129] In some embodiments of the present application, the number of output interfaces 74 matches the number of photographing components, and the assembly method further includes:

[0130] 016, correspondingly connecting each photographing component to the output interface 74.

[0131] Specifically, circuit output terminals are formed on both the first circuit board 21 and the second circuit board 22, and the circuit output terminals can be connected to the output interface 74 through connection lines.

[0132] The number of output interfaces 74 matches the number of photographing components. In the embodiments of the present application, the first photographing component and the second photographing component are included, so the corresponding number of output interfaces 74 is also two.

[0133] In some embodiments of the present application, the vehicle-mounted multi-camera assembly 100 further includes: a third circuit board, a fourth circuit board, a third lens, and a fourth lens. The third circuit board is fixed on the bracket 10, and a third image sensor is disposed on the third circuit board; the fourth circuit board is fixed on the bracket 10, and a fourth image sensor is disposed on the fourth circuit board; the third lens is fixed on the bracket 10, and the third lens is aligned with the third image sensor; the fourth lens is fixed on the bracket 10, and the fourth lens is aligned with the fourth image sensor; wherein, the third lens, the third circuit board, and the third image sensor can form a third shooting assembly, the fourth lens, the fourth circuit board, and the fourth image sensor can form a fourth shooting assembly, the third shooting assembly and the fourth shooting assembly have an overlapping second observation range, and the third shooting assembly and the fourth shooting assembly are used to measure the distance between the scene object in the second observation range and itself.

[0134] Please refer to Figure 13 , in some embodiments of the present application, the vehicle-mounted multi-camera assembly 100 further includes a third circuit board, a fourth circuit board, a third lens, and a fourth lens, and a third image sensor is disposed on the third circuit board; a fourth image sensor is disposed on the fourth circuit board; the assembling method further includes:

[0135] 017, fixing the third circuit board on the bracket 10;

[0136] 018, fixing the fourth circuit board on the bracket 10;

[0137] 019, fixing the third lens on the bracket 10, and aligning the third lens with the third image sensor;

[0138] 020, fixing the fourth lens on the bracket 10, and aligning the fourth lens with the fourth image sensor;

[0139] Wherein, the third lens, the third circuit board, and the third image sensor can form a third shooting assembly, the fourth lens, the fourth circuit board, and the fourth image sensor can form a fourth shooting assembly, the third shooting assembly and the fourth shooting assembly have an overlapping second observation range, and the third shooting assembly and the fourth shooting assembly are used to measure the distance between the scene object in the second observation range and itself.

[0140] In other embodiments, the vehicle-mounted multi-camera assembly 100 may also include a total of four shooting assemblies, namely a first shooting assembly, a second shooting assembly, a third shooting assembly, and a fourth shooting assembly.

[0141] The third shooting assembly and the fourth shooting assembly have an overlapping second observation range, and the third shooting assembly and the fourth shooting assembly are used to measure the distance between the scene object in the second observation range and itself. In cooperation with the first shooting assembly and the second shooting assembly, the four shooting assemblies can work simultaneously to measure the two ranges of the first observation range and the second observation range at the same time.

[0142] In this way, by using four shooting components, the observation range is larger and the computing power is stronger, and the distance between the object and itself can be measured more accurately.

[0143] Please refer to Figure 14 , in some embodiments of the present application, the bracket 10 is used to be directly or indirectly connected to the light shield 80; wherein, the light shield 80 is used to prevent stray light from entering the shooting component.

[0144] In some embodiments of the present application, the assembly method further includes:

[0145] 021, directly or indirectly connecting the bracket 10 to the light shield 80.

[0146] Please refer to Figure 14 and Figure 15 , the light shield 80 is a housing formed with a receiving cavity. The bracket 10 can be directly installed in the light shield 80. The light shield 80 is formed with a plurality of openings at the positions corresponding to the first lens 31 and the second lens 32 of the bracket 10 and the output interface 74, so that the light shield 80 does not block the first lens 31 and the second lens 32 and the output interface 74.

[0147] Specifically, the shape of the light shield 80 is similar to a double-shovel shape. The outer flange 82 is the two edges on the outside of the light shield 80, and the inner flange 81 is the two edges on the inside of the light shield 80. The two edges on the inside of the light shield 80 form a triangular avoidance space in the light shield 80. The shape of the avoidance space is the same as the shape of the connecting part between the first surface and the light shield 80, so that the upper end surface can form a fitting surface with the first surface that has the same surface curvature as the front windshield. The lens of the shooting component passes through the lens hole between the upper end surface and the inner surface.

[0148] Exemplarily, the light shield 80 includes a first light-shielding area and a second light-shielding area. The first light-shielding area corresponds to the first mounting portion 11, and the second light-shielding area corresponds to the second mounting portion 12.

[0149] In an alternative embodiment, the outer edges of the first light-shielding area and the second light-shielding area are symmetrically arranged.

[0150] Please refer to Figure 16 and Figure 17 , in some embodiments of the present application, the outside of the light shield 80 has an outer flange 82, and the angle between the outer flange 82 and the central axis of the light shield 80 is set based on the maximum field of view angle of one of the shooting components.

[0151] In some embodiments of the present application, the inside of the light shield 80 has an inner flange 81, and the assembly method further includes:

[0152] 022. Set the angle between the inner flange 81 and the central axis of the light shield 80 based on the maximum field of view angle of one of the shooting components.

[0153] In some embodiments of the present application, the angle between the outer flange 82 and the central axis of the light shield 80 is set according to the maximum field of view angle of the outermost shooting component.

[0154] In some embodiments of the present application, the assembly method further includes:

[0155] 023. Set the angle between the outer flange 82 and the central axis of the light shield 80 according to the maximum field of view angle of the outermost shooting component.

[0156] In some embodiments of the present application, the inner side of the light shield 80 has an inner flange 81, and the angle between the inner flange 81 and the central axis of the light shield 80 is set based on the maximum field of view angle of one of the shooting components.

[0157] In some embodiments of the present application, the inner side of the light shield 80 has an inner flange 81, and the assembly method further includes:

[0158] 024. Set the angle between the inner flange 81 and the central axis of the light shield 80 based on the maximum field of view angle of one of the shooting components.

[0159] In some embodiments of the present application, the angle between the inner flange 81 and the central axis of the light shield 80 is set according to the maximum field of view angle of the innermost shooting component.

[0160] In some embodiments of the present application, the assembly method further includes:

[0161] 025. Set the angle between the inner flange 81 and the central axis of the light shield 80 according to the maximum field of view angle of the innermost shooting component.

[0162] In some embodiments of the present application, the light shield 80 is used to fit on the front windshield of the vehicle, and the surface curvature of the light shield 80 corresponds to the curvature of the front windshield, so that part or all of the light shield 80 can be fitted on the front windshield.

[0163] In some embodiments of the present application, the assembly method further includes:

[0164] 026. Fit the light shield 80 on the front windshield of the vehicle.

[0165] The surface curvature of the light shield 80 corresponds to the curvature of the front windshield, so that part or all of the light shield 80 can be fitted on the front windshield. Specifically, the light shield 80 is fitted above the inner rearview mirror on the front windshield of the vehicle.

[0166] In some embodiments of the present application, a flanging structure is provided on the edge of the peripheral side of the light shield 80 for bonding with the front windshield.

[0167] The surface curvature of the light shield 80 corresponds to the curvature of the front windshield. The flanging structure on the edge of the peripheral side of the light shield 80 can attach part of the vehicle multi-camera assembly 100 to the front windshield of the vehicle 1000, so that multiple shooting components are arranged in sequence along the width direction of the vehicle 1000, ensuring that the first shooting component and the second shooting component can pass through the front windshield as much as possible to observe the distance between the scene objects within the observation range and the vehicle 1000.

[0168] For example, the first shooting component and the second shooting component are used to observe the distance between the scene objects within the first observation range and the vehicle 1000 after passing through the front windshield; the third shooting component and the fourth shooting component are used to observe the distance between the scene objects within the second observation range and the vehicle 1000 after passing through the front windshield.

[0169] In some embodiments of the present application, a light extinction structure is provided on the light shield 80 for shielding stray light.

[0170] For example, the light extinction structure can adopt light extinction flannelette, and the light extinction flannelette is attached to the inner surface of the light shield 80, or the light extinction structure can also adopt light extinction lines provided on the surface of the light shield 80, and the light extinction lines are serrated.

[0171] In some embodiments of the present application, the bracket 10 is further used to connect with a third mounting portion, and the third mounting portion is used to connect with an external device to fix the bracket 10 to the external device.

[0172] Please refer to Figure 18 , in some embodiments of the present application, the assembly method further includes:

[0173] 027, connecting the bracket 10 with the third mounting portion;

[0174] 028, connecting the third mounting portion with the external device.

[0175] The bracket 10 is connected with the third mounting portion, and the third mounting portion is connected with the external device, so that the bracket 10 is fixed on the external device.

[0176] In some embodiments of the present application, the third mounting portion is used to mount the light shield 80.

[0177] In some embodiments of the present application, the assembly method further includes:

[0178] 029, mounting the light shield 80 onto the third mounting portion.

[0179] In some embodiments of the present application, the light shield 80 is provided with a third positioning portion 83, and the third positioning portion 83 is connected to the third mounting portion.

[0180] In some embodiments of the present application, the light shield 80 is provided with a third positioning portion 83, and the assembly method further includes:

[0181] 030. Connect the third positioning portion 83 to the third mounting portion.

[0182] In this way, the light shield 80 can be mounted on the bracket 10 by connecting the third positioning portion 83 and the third mounting portion.

[0183] In some embodiments of the present application, the third mounting portion is a positioning post provided on the bracket 10, and the third positioning portion 83 is a positioning hole provided on the light shield 80, and the positioning hole is mounted on the positioning post.

[0184] In some embodiments of the present application, the third mounting portion is a positioning post provided on the bracket 10, and the third positioning portion 83 is a positioning hole provided on the light shield 80, and the assembly method further includes:

[0185] 031. Mount the positioning hole on the positioning post.

[0186] Mounting the positioning hole on the positioning post can achieve the connection between the third positioning portion 83 and the third mounting portion, thereby mounting the light shield 80 on the bracket 10.

[0187] In some embodiments of the present application, step 003 includes:

[0188] 0032. Fix the first lens 31 on the bracket 10 by using an active alignment process;

[0189] Step 004 includes:

[0190] 0042. Fix the second lens 32 on the bracket 10 by using an active alignment process.

[0191] The active alignment process is a technology for determining the relative positions during the assembly of parts. When installing each component / part, the semi-finished product being assembled is detected, and it is actively aligned according to the actual situation of the semi-finished product, and then the next component / part is assembled in place.

[0192] Specifically, when installing the first lens 31 and the second lens 32, through the active alignment process, the device will actively align the first lens 31, the second lens 32, and the bracket 10 and then perform the installation.

[0193] In this way, applying the active alignment process can effectively reduce the assembly tolerance and effectively improve the installation accuracy and product consistency.

[0194] Please refer toFigure 19 , the vehicle 1000 according to the embodiment of the present application includes a vehicle body 1001 and a vehicle-mounted multi-camera assembly 100, and the vehicle-mounted multi-camera assembly 100 is installed on the vehicle body 1001.

[0195] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0196] The present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not in itself indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0197] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0198] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A vehicle-mounted multi-camera assembly, characterized in that, it includes: a bracket, which is integrally formed; a first circuit board directly fixed to one end of the bracket, and a first image sensor is arranged on the first circuit board; a second circuit board directly fixed to the other end of the bracket, and a second image sensor is arranged on the second circuit board; a first lens, the first lens is directly fixed on the bracket, and the first lens is aligned with the first image sensor; a second lens, the second lens is directly fixed on the bracket, and the second lens is aligned with the second image sensor; wherein, the first lens, the first circuit board, and the first image sensor can form a first shooting assembly, the second lens, the second circuit board, and the second image sensor can form a second shooting assembly, the first shooting assembly and the second shooting assembly have an overlapping first observation range, and the first shooting assembly and the second shooting assembly are used to measure the distance between the scene object in the first observation range and itself; a first installation part and a second installation part are provided on the bracket, the first installation part is used to install the first circuit board, and the second installation part is used to install the second circuit board; the first installation part is provided with a first receiving groove, and / or the second installation part is provided with a second receiving groove, the first circuit board is arranged in the first receiving groove, and the second circuit board is arranged in the second receiving groove; a first through hole and a second through hole are further provided on the bracket, the first through hole is communicated with the first receiving groove, and the first through hole is opened on the bracket at a position aligned with the first image sensor; the second through hole is communicated with the second receiving groove, and the second through hole is opened on the bracket at a position aligned with the second image sensor, at least part of the first lens extends into the first through hole and is aligned with the first image sensor, and at least part of the second lens extends into the second through hole and is aligned with the second image sensor; the first receiving groove further includes a first protrusion surrounding the first through hole, the first protrusion spaces the first through hole from the first circuit board, and the first image sensor is accommodated in the spaced part, the first protrusion is used to support the first circuit board and limit the first lens in the direction of extending into the first through hole; the second receiving groove further includes a second protrusion surrounding the second through hole, the second protrusion spaces the second through hole from the second circuit board, and the second image sensor is accommodated in the spaced part, the second protrusion is used to support the second circuit board and limit the second lens in the direction of extending into the second through hole.

2. The vehicle-mounted multi-camera assembly according to claim 1, characterized in that, the vehicle-mounted multi-camera assembly further includes a first sealing member sleeved on the first protrusion, the first sealing member is located between the first circuit board and the bracket, and the first sealing member surrounds the first image sensor to seal the first image sensor; and / or The vehicle-mounted multi-camera assembly further includes a second seal sleeved on the second protrusion. The second seal is located between the second circuit board and the bracket, and the second seal surrounds the second image sensor to seal the second image sensor.

3. The vehicle-mounted multi-camera assembly according to claim 2, wherein, the first seal and the second seal include sealing rings.

4. The vehicle-mounted multi-camera assembly according to claim 1, wherein, the bracket includes a first positioning member, and both the first circuit board and the second circuit board include second positioning members. The first positioning member and the second positioning member are aligned and installed to mount the first circuit board and the second circuit board on the bracket.

5. The vehicle-mounted multi-camera assembly according to claim 1, wherein, the bracket includes a first assembly surface for mounting the first circuit board and a second assembly surface for mounting the second circuit board, and the first assembly surface and the second assembly surface are in the same plane.

6. The vehicle-mounted multi-camera assembly according to claim 5, wherein, the bracket further includes a first connection surface for mounting the first lens and a second connection surface for mounting the second lens. The first connection surface is parallel to the first assembly surface and the second assembly surface, and the second connection surface is parallel to the first assembly surface and the second assembly surface.

7. The vehicle-mounted multi-camera assembly according to claim 1, wherein, the vehicle-mounted multi-camera assembly further includes a connecting member, and both the first lens and the second lens are arranged on the bracket through the connecting member.

8. The vehicle-mounted multi-camera assembly according to claim 1, wherein, the bracket includes a first connection surface for mounting the first lens and a second connection surface for mounting the second lens, and the first connection surface and the second connection surface are in the same plane.

9. The vehicle-mounted multi-camera assembly according to claim 1, wherein, the bracket includes a first connection surface for mounting the first lens and a second connection surface for mounting the second lens, and the roughness of the first connection surface and the roughness of the second connection surface are both greater than a preset roughness.

10. The vehicle-mounted multi-camera assembly according to claim 1, wherein, the vehicle-mounted multi-camera assembly further includes a rear cover, and the rear cover is connected to the bracket.

11. The vehicle-mounted multi-camera assembly according to claim 10, wherein, a first positioning portion is provided on the bracket, and a second positioning portion is provided on the rear cover. The first positioning portion and the second positioning portion are cooperatively installed to mount the rear cover on the bracket.

12. The vehicle-mounted multi-camera assembly according to claim 10, wherein, the rear cover includes a heat-conducting component, and the heat-conducting component is used to dissipate the heat generated when the first shooting assembly and the second shooting assembly work.

13. The vehicle-mounted multi-camera assembly according to claim 12, wherein, The first circuit board includes a first mounting surface and a first heat dissipation surface facing away from each other. The first image sensor is disposed on the first mounting surface. A first copper exposed area is formed at a position corresponding to the first image sensor on the first heat dissipation surface. When the rear cover is mounted on the bracket, the heat conduction component is connected to the first copper exposed area to conduct the temperature of the first image sensor and / or the first circuit board to the outside; and / or The second circuit board includes a second mounting surface and a second heat dissipation surface facing away from each other. The second image sensor is disposed on the second mounting surface. A second copper exposed area is formed at a position corresponding to the second image sensor on the second heat dissipation surface. When the rear cover is mounted on the bracket, the heat conduction component is connected to the second copper exposed area to conduct the temperature of the second image sensor and / or the second circuit board to the outside.

14. The vehicle-mounted multi-camera assembly according to claim 12, wherein, the rear cover includes a rear cover body, and the heat conduction component protrudes from the rear cover body; when the rear cover is mounted on the bracket, the first circuit board and the second circuit board are spaced apart from the rear cover body by a preset distance.

15. The vehicle-mounted multi-camera assembly according to claim 14, wherein, the heat conduction component is integrally formed with the rear cover body; and / or, the heat conduction component is detachably connected to the rear cover body.

16. The vehicle-mounted multi-camera assembly according to claim 10, wherein, the rear cover is provided with an output interface, and the output interface is electrically connected to the shooting assembly.

17. The vehicle-mounted multi-camera assembly according to claim 16, wherein, the number of the output interfaces matches the number of the shooting assemblies, so that each shooting assembly is correspondingly connected to the output interface.

18. The vehicle-mounted multi-camera assembly according to claim 1, wherein, the vehicle-mounted multi-camera assembly further includes: a third circuit board fixed on the bracket, and a third image sensor is disposed on the third circuit board; a fourth circuit board fixed on the bracket, and a fourth image sensor is disposed on the fourth circuit board; a third lens, the third lens is fixed on the bracket, and the third lens is aligned with the third image sensor; a fourth lens, the fourth lens is fixed on the bracket, and the fourth lens is aligned with the fourth image sensor; wherein, the third lens, the third circuit board, and the third image sensor can form a third shooting assembly, the fourth lens, the fourth circuit board, and the fourth image sensor can form a fourth shooting assembly, the third shooting assembly and the fourth shooting assembly have an overlapping second observation range, and the third shooting assembly and the fourth shooting assembly are used to measure the distance between the scene object in the second observation range and itself.

19. The vehicle-mounted multi-camera assembly according to claim 1, wherein, the bracket is used to be directly or indirectly connected to the light shield; wherein, the light shield is used to prevent stray light from entering the shooting assembly.

20. The vehicle-mounted multi-camera assembly according to claim 19, wherein, The outer side of the light shield has an outer flange, and the angle between the outer flange and the central axis of the light shield is set based on the maximum field of view angle of one of the shooting components.

21. The vehicle-mounted multi-camera assembly according to claim 20, wherein, the angle between the outer flange and the central axis of the light shield is set according to the maximum field of view angle of the outermost shooting component.

22. The vehicle-mounted multi-camera assembly according to claim 20, wherein, the inner side of the light shield has an inner flange, and the angle between the inner flange and the central axis of the light shield is set based on the maximum field of view angle of one of the shooting components.

23. The vehicle-mounted multi-camera assembly according to claim 22, wherein, the angle between the inner flange and the central axis of the light shield is set according to the maximum field of view angle of the innermost shooting component.

24. The vehicle-mounted multi-camera assembly according to claim 19, wherein, the light shield is used to fit on the front windshield of the vehicle, and the surface curvature of the light shield corresponds to the curvature of the front windshield, so that part or all of the light shield can be attached to the front windshield.

25. The vehicle-mounted multi-camera assembly according to claim 24, wherein, a flanging structure is provided on the edge of the periphery of the light shield for bonding with the front windshield.

26. The vehicle-mounted multi-camera assembly according to claim 19, wherein, a light extinction structure is provided on the light shield for shielding stray light.

27. The vehicle-mounted multi-camera assembly according to claim 19, wherein, the bracket is further used to connect to a third mounting portion, and the third mounting portion is used to connect to an external device to fix the bracket to the external device.

28. The vehicle-mounted multi-camera assembly according to claim 27, wherein, the third mounting portion is used to mount the light shield.

29. The vehicle-mounted multi-camera assembly according to claim 28, wherein, the light shield is provided with a third positioning portion, and the third positioning portion is connected to the third mounting portion.

30. The vehicle-mounted multi-camera assembly according to claim 29, wherein, the third mounting portion is a positioning post provided on the bracket, the third positioning portion is a positioning hole provided on the light shield, and the positioning hole is mounted on the positioning post.

31. An assembly method for assembling a vehicle-mounted multi-camera assembly, wherein, the vehicle-mounted multi-camera assembly includes a bracket, a first circuit board, a second circuit board, a first lens and a second lens, a first image sensor is provided on the first circuit board; a second image sensor is provided on the second circuit board; the bracket is integrally formed, and the assembly method includes: a first mounting portion and a second mounting portion are formed on the bracket, a first receiving groove is formed in the first mounting portion, and / or a second receiving groove is formed in the second mounting portion; fixing and connecting the first circuit board in the first receiving groove; fixing and connecting the second circuit board in the second receiving groove Fix the first lens directly on the bracket, and align the first lens with the first image sensor; Fix the second lens directly on the bracket, and align the second lens with the second image sensor; Wherein, the first lens, the first circuit board, and the first image sensor can form a first shooting assembly, the second lens, the second circuit board, and the second image sensor can form a second shooting assembly, the first shooting assembly and the second shooting assembly have an overlapping first observation range, and the first shooting assembly and the second shooting assembly are used to measure the distance between the scene object in the first observation range and itself; The bracket is also provided with a first through hole and a second through hole. The first through hole communicates with the first receiving groove, and the first through hole is opened at a position on the bracket that aligns with the first image sensor; the second through hole communicates with the second receiving groove, and the second through hole is opened at a position on the bracket that aligns with the second image sensor. Fixing the first lens directly on the bracket includes: Insert at least a part of the first lens into the first through hole and align it with the first image sensor; Fixing the second lens directly on the bracket includes: Insert at least a part of the second lens into the second through hole and align it with the second image sensor; The first receiving groove further includes a first protrusion surrounding the first through hole. The first protrusion spaces the first through hole from the first circuit board, and the spaced part houses the first image sensor. The first protrusion is used to support the first circuit board and limit the first lens in the direction of inserting into the first through hole; the second receiving groove further includes a second protrusion surrounding the second through hole. The second protrusion spaces the second through hole from the second circuit board, and the spaced part houses the second image sensor. The second protrusion is used to support the second circuit board and limit the second lens in the direction of inserting into the second through hole.

32. The assembly method according to claim 31, wherein, The vehicle-mounted multi-camera assembly further includes a first sealing member sleeved on the first protrusion, and the first sealing member is located between the first circuit board and the bracket; and / or The vehicle-mounted multi-camera assembly further includes a second sealing member sleeved on the second protrusion, and the second sealing member is located between the second circuit board and the bracket. The assembly method further includes: Surround the first image sensor with the first sealing member; Surround the second image sensor with the second sealing member.

33. The assembly method according to claim 32, wherein, The first sealing member and the second sealing member include sealing rings.

34. The assembly method according to claim 31, wherein, The bracket includes a first positioning member, and both the first circuit board and the second circuit board include second positioning members. The assembly method further includes: Align and install the first positioning member and the second positioning member.

35. The assembly method according to claim 31, wherein, The bracket includes a first assembly surface for mounting the first circuit board and a second assembly surface for mounting the second circuit board. The assembly method further includes: Adjusting the first assembly surface to be in the same plane as the second assembly surface.

36. The assembly method according to claim 35, wherein, the bracket further includes a first connection surface for mounting the first lens and a second connection surface for mounting the second lens. The assembly method further includes: Adjusting the first connection surface to be parallel to the first assembly surface and the second assembly surface; Adjusting the second connection surface to be parallel to the first assembly surface and the second assembly surface.

37. The assembly method according to claim 31, wherein, the vehicle-mounted multi-camera assembly further includes a connecting member. The assembly method further includes: Disposing both the first lens and the second lens on the bracket through the connecting member.

38. The assembly method according to claim 31, wherein, the bracket includes a first connection surface for mounting the first lens and a second connection surface for mounting the second lens. The first connection surface and the second connection surface are in the same plane.

39. The assembly method according to claim 31, wherein, the bracket includes a first connection surface for mounting the first lens and a second connection surface for mounting the second lens. The roughness of the first connection surface and the roughness of the second connection surface are both greater than a preset roughness.

40. The assembly method according to claim 31, wherein, the vehicle-mounted multi-camera assembly further includes a rear cover. The assembly method further includes: Connecting the rear cover to the bracket.

41. The assembly method according to claim 40, wherein, a first positioning portion is provided on the bracket, and a second positioning portion is provided on the rear cover. The assembly method further includes: Mounting the first positioning portion in cooperation with the second positioning portion.

42. The assembly method according to claim 40, wherein, the rear cover includes a heat-conducting component for dissipating the heat generated when the first shooting component and the second shooting component are working.

43. The assembly method according to claim 42, wherein, the first circuit board includes a first mounting surface and a first heat-dissipating surface opposite to each other. The first image sensor is disposed on the first mounting surface, and a first copper-exposed area is formed at a position corresponding to the first image sensor on the first heat-dissipating surface. When the rear cover is mounted on the bracket, the heat-conducting component is connected to the first copper-exposed area to conduct the temperature of the first image sensor and / or the first circuit board to the outside; and / or The second circuit board includes a second mounting surface and a second heat dissipation surface opposite to each other. The second image sensor is disposed on the second mounting surface. A second copper exposed area is formed at a position on the second heat dissipation surface corresponding to the second image sensor. When the rear cover is mounted on the bracket, the heat conduction component is connected to the second copper exposed area to conduct the temperature of the second image sensor and / or the second circuit board to the outside.

44. According to the assembly method described in claim 42, wherein, the rear cover includes a rear cover body, and the heat conduction component protrudes from the rear cover body; the assembly method further includes: when the rear cover is mounted on the bracket, the first circuit board, the second circuit board and the rear cover body are spaced apart by a preset distance.

45. According to the assembly method described in claim 44, wherein, the heat conduction component is integrally formed with the rear cover body; and / or, the heat conduction component is detachably connected to the rear cover body.

46. According to the assembly method described in claim 40, wherein, the rear cover is provided with an output interface, and the assembly method further includes: electrically connecting the output interface to the shooting component.

47. According to the assembly method described in claim 46, wherein, the number of the output interfaces matches the number of the shooting components, and the assembly method further includes: correspondingly connecting each shooting component to the output interface.

48. According to the assembly method described in claim 31, wherein, the vehicle-mounted multi-camera assembly further includes a third circuit board, a fourth circuit board, a third lens and a fourth lens. A third image sensor is disposed on the third circuit board; a fourth image sensor is disposed on the fourth circuit board; the assembly method further includes: fixing the third circuit board on the bracket; fixing the fourth circuit board on the bracket; fixing the third lens on the bracket, and aligning the third lens with the third image sensor; fixing the fourth lens on the bracket, and aligning the fourth lens with the fourth image sensor; wherein, the third lens, the third circuit board and the third image sensor can form a third shooting component, the fourth lens, the fourth circuit board and the fourth image sensor can form a fourth shooting component, the third shooting component and the fourth shooting component have an overlapping second observation range, and the third shooting component and the fourth shooting component are used to measure the distance between the scene object in the second observation range and itself.

49. According to the assembly method described in claim 31, wherein, the assembly method further includes: directly or indirectly connecting the bracket to the light shield.

50. According to the assembly method described in claim 49, wherein, the outer side of the light shield has an outer flange, and the assembly method further includes: setting the angle between the outer flange and the central axis of the light shield based on the maximum field of view angle of one of the shooting components.

51. According to the assembly method described in claim 50, wherein, the assembly method further includes: Set the angle between the outer flange and the central axis of the light shield according to the maximum field of view angle of the outermost shooting component.

52. The assembly method according to claim 50, wherein, the inner side of the light shield has an inner flange, and the assembly method further includes: Set the angle between the inner flange and the central axis of the light shield based on the maximum field of view angle of one of the shooting components.

53. The assembly method according to claim 52, wherein, the assembly method further includes: Set the angle between the inner flange and the central axis of the light shield according to the maximum field of view angle of the innermost shooting component.

54. The assembly method according to claim 49, wherein, the assembly method further includes: Attach the light shield to the front windshield of the vehicle.

55. The assembly method according to claim 54, wherein, A flanging structure is provided on the edge of the circumferential side of the light shield for bonding with the front windshield.

56. The assembly method according to claim 49, wherein, The light shield is provided with a light extinction structure for shielding stray light.

57. The assembly method according to claim 49, wherein, the assembly method further includes: Connect the bracket to the third mounting portion; Connect the third mounting portion to an external device to fix the bracket to the external device.

58. The assembly method according to claim 57, wherein, the assembly method further includes: Install the light shield onto the third mounting portion.

59. The assembly method according to claim 58, wherein, The light shield is provided with a third positioning portion, and the assembly method further includes: Connect the third positioning portion to the third mounting portion.

60. The assembly method according to claim 59, wherein, The third mounting portion is a positioning post provided on the bracket, and the third positioning portion is a positioning hole provided on the light shield. The assembly method further includes: Install the positioning hole on the positioning post.

61. The assembly method according to claim 31, wherein, The directly fixing the first lens on the bracket includes: Directly fixing the first lens on the bracket by using an active alignment process; The directly fixing the second lens on the bracket includes: Directly fixing the second lens on the bracket by using an active alignment process.

62. A vehicle, wherein, The vehicle includes a vehicle body and the vehicle-mounted multi-camera assembly according to any one of claims 1-30, and the vehicle-mounted multi-camera assembly is installed on the vehicle body.

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