A lidar mounting structure and vehicle

Abstract

This application provides a lidar mounting structure and vehicle, belonging to the field of automotive radar technology. By setting a limiting flange on the outer edge of the radar window and setting limiting ribs on the edge of the mounting window of the roof trim, and making the first and second limiting surfaces of the limiting ribs and the limiting flange form abutment fits, the assembly dimension chain in the traditional limiting structure is significantly shortened, effectively avoiding the accumulation of assembly errors. The limiting action point matches the appearance mating point, and the limiting accuracy can be directly converted into assembly accuracy. This allows for precise control of the relative position of the radar window and the mounting window, avoiding problems such as uneven mating gaps and surface differences, and significantly improving the appearance quality of the vehicle. By setting the limiting ribs on the outer panel, the radar window can be directly limited, making the precision of gaps and surface differences controllable, fundamentally solving the contradiction in the prior art where the limiting structure is accurate in positioning but cannot guarantee appearance quality.

Description

Technical Field

[0001] This application belongs to the field of automotive radar technology, and more specifically, relates to a lidar mounting structure and vehicle. Background Technology

[0002] As the automotive industry rapidly evolves towards intelligence, advanced autonomous driving has become one of the core indicators for measuring the technological level of vehicles. As a key perception component for realizing advanced autonomous driving functions, the application and popularity of lidar are closely related to the level of vehicle intelligence.

[0003] In the existing technology, the installation and positioning method between the lidar and the top cover decoration is mainly to set an axial positioning hole (or positioning groove) on the lower side of the lidar window, and correspondingly set a matching positioning post (or positioning rib) on the top cover decoration. The initial positioning of the lidar is achieved by the insertion and cooperation of the positioning post (or positioning rib) and the positioning hole (or positioning groove).

[0004] However, the aforementioned limiting structure requires separate customized designs for the LiDAR and roof trim, which not only increases the design complexity of the components and leads to increased manufacturing costs, but also adds extra dimensions in the vehicle's height direction, contradicting the current design trend of lightweight and compact vehicles. Furthermore, using the existing limiting structure easily results in poor appearance consistency between the LiDAR and roof trim after assembly, leading to uneven fit gaps and surface differences, thus affecting the overall appearance quality of the vehicle. Utility Model Content

[0005] The purpose of this application is to provide a lidar mounting structure and vehicle that can precisely control the relative position of the lidar window and the mounting window, avoiding problems such as uneven fit gaps and surface differences. It also helps to reduce the mounting dimensions in the height direction, has good versatility, and reduces design and development costs.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: Firstly, a lidar mounting structure is provided, comprising: The radar body has a radar window, the outer edge of which is provided with a limiting flange that folds outward, the limiting flange having a first limiting surface and a second limiting surface set at an included angle; and The top cover decorative piece has a receiving groove on the bottom surface, the radar body is installed in the receiving groove, and the front end of the receiving groove has an installation window for exposing the radar window; The mounting window has a rearwardly extending limiting rib at its edge. The limiting rib can abut against the first limiting surface to restrict the displacement of the radar window in a direction perpendicular to the front-back direction. The limiting rib can also abut against the front side of the second limiting surface to restrict the forward displacement of the radar window.

[0007] In the existing limiting methods for radar bodies and roof trim, both the positioning holes on the lidar side and the positioning ribs on the roof trim side require specific structural designs for each vehicle model and lidar model. This results in poor versatility, increases R&D and manufacturing costs, and adds extra dimensions in the vehicle height direction, which contradicts the current trend of lightweight and compact vehicle design.

[0008] More importantly, the existing limiting structure is located on the lower part of the LiDAR or on the adapter bracket. This means that the final assembly accuracy of the LiDAR and the roof trim window depends on the superposition of the dimensional and assembly accuracy of multiple related structures, forming a lengthy and complex assembly dimension chain. This extended assembly dimension chain easily leads to the accumulation of errors, ultimately causing uneven gaps and surface differences between the LiDAR window and the roof trim window. This not only affects the consistency of the appearance after the LiDAR and roof trim are assembled, but may also affect the LiDAR's detection accuracy, thus reducing the overall quality of the vehicle.

[0009] The beneficial effects of the lidar mounting structure provided in this application embodiment are as follows: by setting a limiting flange on the outer edge of the lidar window and setting limiting ribs on the edge of the mounting window of the top cover trim, and making the first limiting surface and the second limiting surface of the limiting ribs and the limiting flange respectively form an abutment fit, the limiting action point between the lidar body and the top cover trim is directly focused on the edge area of ​​the lidar window and the mounting window, which greatly shortens the assembly dimension chain in the traditional limiting structure and effectively avoids the accumulation of assembly errors; at the same time, the limiting action point matches the appearance mating point, and the limiting accuracy can be directly converted into assembly accuracy, which can accurately control the relative position of the lidar window and the mounting window, avoid problems such as mating gaps and uneven surface differences, and significantly improve the appearance quality of the vehicle.

[0010] The aforementioned limiting structure moves the traditional shaft hole limiting structure located at the bottom of the radar body to a position flush with the radar body, reducing the Z-axis installation dimensions to some extent and contributing to the lightweight design of the vehicle. Furthermore, the abutment structure between the limiting ribs and the limiting flange has better compatibility, eliminating the need for precise insertion of the traditional shaft hole limiting structure. Moreover, the limiting flange is located at the outer edge of the radar window, a common location, making it compatible with various radar body models. This eliminates the need to adjust the dimensions of the limiting ribs on the top cover trim, thereby reducing the number of mold openings for the top cover trim and lowering platform development costs.

[0011] In conjunction with the first aspect, in one possible implementation, the top cover decorative component includes an outer panel and an inner panel that are sequentially fitted together, the mounting window is provided through the outer panel and the inner panel, the limiting rib is provided on the outer panel, the receiving groove is provided on the inner panel, and the radar body is locked and connected to the inner panel.

[0012] By setting the limiting ribs on the outer panel and abutting against the limiting flange on the radar window, the radar window can be directly confined within the installation window of the outer panel. In other words, the positioning accuracy of the limiting structure for the radar window is the assembly accuracy, making the gap and surface difference controllable. This fundamentally solves the contradiction in the existing technology where the limiting structure is accurate in positioning but cannot guarantee the appearance quality.

[0013] In conjunction with the first aspect, in one possible implementation, the limiting flange includes: A first flange portion is connected to the outer edge of the radar window, and the outer peripheral surface of the first flange portion forms the first limiting surface; and The second flange is connected to the rear end of the first flange, and the front side of the second flange forms the second limiting surface.

[0014] The first and second flanges work together to limit the radar window from multiple directions. The first flange is connected to the outer edge of the radar window and can be inserted into the mounting window along with the radar window. The first limiting surface formed by its outer contour can provide initial guidance and limitation with the edge of the mounting window, providing a reference for the subsequent positioning of the second flange. The second flange is connected to the rear end of the first flange. As the radar body is further inserted, the second limiting surface formed on its front side can limit the outer periphery of the radar window by abutting against the limiting rib.

[0015] The above structure not only makes the assembly process clearer and more orderly, reducing assembly difficulty, but also enables precise positioning of the radar window, reducing appearance gaps and surface differences, and improving overall assembly accuracy and appearance quality.

[0016] In some embodiments, the limiting rib includes: A plurality of first ribs are respectively disposed on the upper and lower edges of the mounting window, and the side of the first rib facing the radar window abuts against the first limiting surface to limit the vertical displacement of the radar window; and Several second ribs are respectively disposed on the left and right edges of the mounting window. The side of the second rib facing the radar window abuts against the first limiting surface to limit the displacement of the radar window in the left and right directions. The rear end faces of the first rib and the second rib respectively abut against the second limiting surface to limit the forward displacement of the radar body.

[0017] The direct contact between the first rib and the first limiting surface effectively limits the radar window in the ±Z direction; the contact between the second rib and the first limiting surface effectively limits the radar window in the ±Y direction; the rear ends of the first and second ribs together contact the second limiting surface to effectively limit the radar window in the +X direction, preventing the radar window from protruding forward from the surface of the top cover decoration, ensuring uniform surface difference and guaranteeing the flatness of the appearance.

[0018] In conjunction with the first aspect, in one possible implementation, a top guide portion is provided on the top wall of the receiving groove. The top guide portion extends in the front-rear direction and is fitted to the top surface of the radar body. The top guide portion is used to limit the position of the top surface of the radar body and guide the radar body forward into the mounting window.

[0019] The top guide section, through its close fit with the top surface of the radar body, provides a precise top positioning reference for the installation of the radar body. This ensures that the radar body maintains a preset height, posture, and angle when placed into the receiving slot, preventing friction and collision between the radar window and the edge of the installation window during installation. This also avoids scratches, cracks, and other cosmetic damage to the radar window surface, ensuring the light transmission performance and appearance quality of the radar window.

[0020] In some embodiments, the two oppositely arranged sidewalls of the receiving groove are respectively provided with side guide portions; the two sidewalls of the radar body are respectively provided with side limiting portions, and the side guide portions and the side limiting portions are fitted together to limit the position of the left and right sidewalls of the radar body.

[0021] The close fit between the side guide and the side limiting part provides a precise left-right positioning reference for the installation of the radar body, preventing the radar body from shifting left or right during the placement into the receiving slot, and thus preventing the radar window edge from colliding with the installation window and causing scratches.

[0022] In some embodiments, the side guide portion is disposed near the mounting window, and the side limiting portion is disposed near the radar window.

[0023] The side guide part located near the installation window forms a fitting constraint with the side limiting part near the radar window, which can correct the slight displacement of the radar window in the left and right direction in the first time, ensuring that the radar window is assembled with the installation window in a stable and aligned manner, thus improving assembly efficiency and accuracy.

[0024] In some embodiments, the rear end of the top guide portion is provided with a rear limiting portion, which is used to abut against the rear end surface of the radar body to limit the rearward displacement of the radar body.

[0025] By using the rear limiting part to abut against the rear end face of the radar body, the radar body is effectively limited in the -X direction, preventing the radar body from moving backward and causing the radar window to be recessed relative to the mounting window, which helps to ensure the overall assembly appearance.

[0026] In conjunction with the first aspect, in one possible implementation, the bottom surface of the top cover decorative piece is provided with a first mounting post, and the rear end face of the radar body is provided with a mounting ear plate, the mounting ear plate and the first mounting post being connected by a first fastener.

[0027] After the radar body is installed into the receiving groove and the limiting ribs and limiting flanges are in place, the rear limiting part abuts against the rear end face of the radar body, and the mounting ear plate is attached to the end face of the first mounting post. The mounting ear plate is connected to the first mounting post by the first fastener, thus achieving a precise and stable connection between the radar body and the top cover decoration.

[0028] Secondly, embodiments of this application also provide a vehicle, including a roof panel and the aforementioned lidar mounting structure, wherein the lidar mounting structure is connected above the roof panel; The radar body is connected to the top cover plate by a second fastener; the top cover decorative piece is connected to the top cover plate by a third fastener.

[0029] The vehicle provided in this application embodiment, having the aforementioned lidar mounting structure, possesses all the beneficial effects of the aforementioned lidar mounting structure: the limiting ribs provided on the edge of the mounting window of the roof trim abut against the limiting flange provided on the outer edge of the lidar window to limit the lidar window, which greatly shortens the assembly dimension chain in the traditional limiting structure, effectively avoids the accumulation of assembly errors, avoids the problem of uneven fit gaps and surface differences between the lidar window and the mounting window, and significantly improves the appearance quality of the vehicle.

[0030] In addition, the vehicle in this embodiment eliminates the traditional adapter bracket structure, which not only ensures installation strength but also simplifies the structural composition and reduces manufacturing costs. At the same time, it significantly reduces the Z-axis space height of the roof, meeting the lightweight design requirements of the vehicle. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1This is a schematic diagram of the installation state of a lidar mounting structure provided in an embodiment of this application; Figure 2 Examples of this application Figure 1 A structural schematic diagram omitting the top cover decorative component; Figure 3 This is a front view schematic diagram of a lidar mounting structure provided in an embodiment of this application; Figure 4 Examples of this application Figure 3 A schematic diagram of the AA-line cross-sectional structure; Figure 5 Examples of this application Figure 1 A schematic diagram of the explosive decomposition structure; Figure 6 This is a top view of the radar body provided in an embodiment of this application; Figure 7 A bottom-view structural diagram of the radar body provided in the embodiments of this application; Figure 8 A bottom view of the top cover decorative component provided in an embodiment of this application; Figure 9 This is a bottom view of the structure after the top cover decoration and the radar body are assembled, as provided in the embodiments of this application.

[0033] In the picture: 1. Radar body; 11. Radar window; 12. Limiting flange; 121. First limiting surface; 122. Second limiting surface; 123. First flange portion; 124. Second flange portion; 13. Side limiting portion; 14. Mounting ear plate; 15. Second mounting post; 151. Second fastener; 2. Top cover decorative piece; 21. Receiving groove; 22. Mounting window; 23. Limiting rib; 231. First rib; 232. Second rib; 24. Outer panel; 25. Inner panel; 26. Top guide portion; 27. Side guide portion; 28. Rear limiting portion; 3. Top cover plate; 4. First mounting post; 41. First fastener; 5. Third mounting post; 51. Third fastener; 6. Windshield. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0035] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a few" means two or more, unless otherwise explicitly specified.

[0037] For ease of description, the directions involved in the embodiments of this application are defined as follows: the vehicle length direction is referred to as the X direction or front-to-back direction, the vehicle width direction is referred to as the Y direction or left-to-right direction, and the vehicle height direction is referred to as the Z direction or up-and-down direction. Among them, the vehicle head represents "front", the vehicle tail represents "rear", the vehicle top represents "up", and the vehicle bottom represents "down".

[0038] In the current market, most vehicle models mount their LiDAR sensors on the front of the roof, above the windshield, and centered horizontally. This position provides the LiDAR with a wide detection field of view, effectively ensuring its sensing accuracy and range.

[0039] The current method for installing lidar on the roof typically involves first mounting the lidar on the roof trim, and then connecting it to the roof sheet metal via an adapter bracket. The installation limitation between the lidar and the roof trim is mainly achieved by setting an axial positioning hole (or positioning groove) on the lower side of the lidar window, and setting a matching positioning post (or positioning rib) on the roof trim. The initial limitation of the lidar is achieved by the interlocking of the positioning post (or positioning rib) and the positioning hole (or positioning groove). Some vehicle models also use the roof trim and an adapter bracket for limitation, thereby achieving the installation limitation of the lidar.

[0040] The inventors discovered that in the above-mentioned limiting methods, both the positioning holes on the lidar side and the positioning ribs on the top cover trim side require specific structural designs for each vehicle model and lidar model, resulting in poor versatility. This not only increases R&D and manufacturing costs but also adds to the vehicle's height dimension, which contradicts the current trend of lightweight and compact vehicle design.

[0041] Furthermore, the existing limiting structure is located on the lower part of the lidar or on the adapter bracket. This means that the final assembly accuracy of the lidar and the roof trim window depends on the superposition of the dimensional and assembly accuracy of multiple related structures, forming a lengthy and complex assembly dimension chain. This extended assembly dimension chain easily leads to the accumulation of errors, ultimately causing uneven gaps and surface differences between the lidar window and the roof trim window. This not only affects the consistency of the appearance after assembly of the lidar and the roof trim but may also affect the lidar's detection accuracy, thus reducing the overall quality of the vehicle.

[0042] It should be explained that surface difference refers to the height difference between the surface of the radar window and the outer surface of the roof trim. If the surface difference exceeds the tolerance (such as the radar window protruding too high or sinking too deep relative to the outer surface of the roof trim), it will damage the overall flatness of the roof, affect the visual quality of the whole vehicle, and may also disrupt the airflow direction when the vehicle is in motion, thereby increasing additional wind resistance and wind noise, and affecting the driving quality of the vehicle.

[0043] To resolve the above technical issues, please refer to the following: Figures 1 to 9 This application describes a lidar mounting structure and vehicle. The lidar mounting structure includes a lidar body 1 and a top cover trim 2. The lidar body 1 has a lidar window 11, and the outer edge of the lidar window 11 is provided with a limiting flange 12. The limiting flange 12 has a first limiting surface 121 and a second limiting surface 122 set at an angle. The bottom surface of the top cover trim 2 is provided with a receiving groove 21, and the lidar body 1 is installed in the receiving groove 21. The front end of the receiving groove 21 is provided with a mounting window 22, which is used to expose the lidar window 11. The edge of the mounting window 22 is provided with a rearwardly extending limiting rib 23. The limiting rib 23 can abut against the first limiting surface 121 to limit the displacement of the lidar window 11 in the vertical and horizontal directions, and can abut against the front side of the second limiting surface 122 to limit the forward displacement of the lidar window 11.

[0044] This application provides a lidar mounting structure that, compared with existing technologies, provides a limiting flange 12 on the outer edge of the lidar window 11 and a limiting rib 23 on the edge of the mounting window 22 of the top cover trim 2. The limiting rib 23 and the first limiting surface 121 and second limiting surface 122 of the limiting flange 12 form an abutting fit, directly focusing the limiting action point between the lidar body 1 and the top cover trim 2 on the edge area of ​​the lidar window 11 and the mounting window 22. This significantly shortens the assembly dimension chain in traditional limiting structures and effectively avoids the accumulation of assembly errors. Simultaneously, it ensures that the limiting action point matches the appearance mating point, directly converting the limiting accuracy into assembly accuracy. This allows for precise control of the relative position of the lidar window 11 and the mounting window 22, avoiding mating gaps and uneven surface differences, and significantly improving the vehicle's appearance quality.

[0045] The aforementioned limiting structure moves the traditional shaft hole limiting structure located at the lower part of the radar body 1 to the same level as the radar body 1, which reduces the Z-axis installation size to a certain extent and helps to achieve lightweight vehicle design. In addition, the abutment structure between the limiting rib 23 and the limiting flange 12 has stronger compatibility, eliminating the need for precise insertion of the traditional shaft hole limiting structure. Moreover, the limiting flange 12 is located at the outer edge of the radar window 11, a common location, which can be compatible with various radar body 1 models. There is no need to adjust the size of the limiting rib 23 on the top cover trim 2, thereby reducing the number of mold openings for the top cover trim 2 and lowering the platform development cost.

[0046] In this embodiment, the radar body 1 adopts a lidar, which can obtain the spatial information of the target by emitting a laser beam and receiving the echo signal. It has advantages such as high precision, high resolution and strong environmental adaptability, and is especially suitable for scenarios with extremely high requirements for accuracy and safety, such as autonomous driving.

[0047] The receiving groove 21 and the top cover decorative part 2 are integrally stamped and formed, which can match the shape of the radar body 1 very well. When installing the radar body 1, first flip the top cover decorative piece 2 up and down so that the receiving groove 21 faces upwards. At the same time, flip the radar body 1 up and down so that the radar window 11 of the radar body 1 faces the installation window 22 of the top cover decorative piece 2. Place the radar body 1 into the receiving groove 21 and push the radar body 1 forward so that the radar window 11 passes into the installation window 22. At this time, the limiting rib 23 on the outer edge of the installation window 22 abuts against the first limiting surface 121 of the limiting flange 12 to limit the radar window 11 in the vertical and horizontal directions. At the same time, the limiting rib 23 abuts against the second limiting surface 122 to restrict the forward movement of the radar window 11. When a slight abutting reaction force is felt from the limiting rib 23, it indicates that the abutting fit is in place and the radar body 1 has reached the preset installation position. Then connect the radar body 1 and the top cover decorative piece 2 to ensure that the outer surface of the radar window 11 can be stably on the same appearance surface as the outer surface of the top cover decorative piece 2, ensuring a refined appearance.

[0048] Specifically, the included angle between the first limiting surface 121 and the second limiting surface 122 can be a right angle or an obtuse angle less than 110°, such as 95°, 100°, or 105°, to ensure that they can effectively abut and limit the radar window 11 in the direction perpendicular to the front and rear directions. More specifically, the first limiting surface 121 can be parallel to the front and rear directions or set at an acute angle of no more than 10°, so as to abut against the limiting rib 23 to limit the radar window 11 in the direction perpendicular to the front and rear directions; the second limiting surface 122 can be perpendicular to the front and rear directions or set at an obtuse angle of no more than 100°, so as to abut against the limiting rib 23 to limit the radar window 11 in the front and rear directions.

[0049] Furthermore, a sealing element (not shown in the figure) is provided on the front wall of the receiving groove 21. The sealing element is located on the outer side of the mounting window 22. When the limiting rib 23 abuts against the limiting flange 12, the sealing element can be squeezed between the front wall of the receiving groove 21 and the limiting flange 12 to buffer the assembly stress and at the same time play a sealing role to prevent dust, water vapor and other substances from entering from the mounting gap between the mounting window 22 and the radar window 11, and can also prevent airflow from entering and generating eddies, causing wind noise when driving at high speed.

[0050] In some embodiments, the aforementioned top cover decorative element 2 may adopt the following form: Figure 5 The structure shown. See also Figure 5 The top cover decorative component 2 includes an outer plate 24 and an inner plate 25 that are sequentially fitted together. An installation window 22 is provided through the outer plate 24 and the inner plate 25. A limiting rib 23 is provided on the outer plate 24. A receiving groove 21 is provided on the inner plate 25. The radar body 1 is locked and connected to the inner plate 25.

[0051] The outer panel 24 of the roof trim 2 is an exterior component exposed to the outside of the vehicle body, requiring aesthetic appeal and scratch resistance. Therefore, it necessitates the use of high-quality materials and a painted finish. The inner panel 25, on the other hand, is a structural component hidden within the roof, primarily supporting the outer panel 24 and securing its surrounding components. Its structural strength is paramount, while aesthetic quality is less of a concern. Therefore, designing the roof trim 2 as a separate structure of the outer panel 24 and the inner panel 25 helps optimize materials and costs while ensuring both aesthetic quality and structural performance.

[0052] Specifically, the receiving groove 21 and the inner plate 25 are integrally formed, and can be manufactured by stamping or injection molding. A passage window for the radar window 11 to pass through is provided on the front end of the receiving groove 21 on the inner plate 25. The outer plate 24 has a protrusion that conforms to the shape of the receiving groove 21, facilitating effective fitting and assembly with the inner plate 25 to form a compact top cover decorative piece 2. The mounting window 22 of the top cover decorative piece 2 is located on the protrusion of the outer plate 24 and communicates with the passage window on the inner plate 25, for mounting and exposing the radar window 11.

[0053] It should be noted that in existing technologies, the mounting and positioning structures for lidar devices on the top cover decorative parts are mostly located on the inner panel. Although the inner and outer panels of the top cover decorative parts are nested as a single unit, relative positional deviations between the inner and outer panels are unavoidable due to manufacturing and assembly processes. In other words, the lidar's mounting positioning reference is the positioning structure on the inner panel, while the outer panel's appearance reference is independent of the inner panel. This can easily lead to uneven gaps and surface differences between the lidar's viewing window and the window on the outer panel, even if the lidar's positioning structure is precisely aligned with the inner panel. For example, if the inner panel's positioning structure centers the lidar viewing window, but the outer panel is offset to the right by 0.3mm relative to the inner panel, the final appearance will be that the lidar viewing window is offset to the left by 0.3mm relative to the window on the outer panel, resulting in a gap that is narrower on the left and wider on the right, leading to poor positioning performance.

[0054] In this embodiment, the limiting rib 23 is set on the outer plate 24. By the limiting rib 23 abutting against the limiting flange 12 on the radar window 11, the radar window 11 can be directly limited within the mounting window 22 of the outer plate 24. That is, the positioning accuracy of the limiting structure for the radar window 11 is the assembly accuracy, making the accuracy of gaps and surface differences controllable. This fundamentally solves the contradiction in the prior art where the limiting structure is accurate in positioning but cannot guarantee the appearance quality.

[0055] On the other hand, using existing limiting structures, the formation process of the appearance requires multiple steps, including the inner panel limiting structure, the lidar, the radar window, and the outer panel window, leading to the accumulation of assembly errors at multiple stages. In this embodiment, the radar window 11 is directly limited by the limiting ribs 23 on the mounting window 22. Only two errors need to be controlled: the positional deviation of the limiting ribs 23 on the edge of the mounting window 22 and the manufacturing error of the upper limiting flange 12 of the radar window 11. This greatly shortens the assembly dimension chain and effectively avoids the risk of appearance deviation caused by the accumulation of errors.

[0056] In some embodiments, the aforementioned limiting flange 12 can be adopted as follows: Figure 4 and Figure 6 The structure shown. See also Figure 4 and Figure 6 The limiting flange 12 includes a first flange portion 123 and a second flange portion 124. The first flange portion 123 is connected to the outer edge of the radar window 11, and the outer peripheral surface of the first flange portion 123 forms a first limiting surface 121. The second flange portion 124 is connected to the rear end of the first flange portion 123, and the front side of the second flange portion 124 forms a second limiting surface 122.

[0057] In this embodiment, the first flange 123 and the second flange 124 both extend circumferentially along the radar window 11 to form an annular limiting structure surrounding the outer edge of the radar window 11, which can cooperate with the limiting ribs 23 on the mounting window 22 to form abutment and limiting of the radar window 11 in the entire circumference.

[0058] The first flange 123 and the second flange 124 cooperate to limit the radar window 11 from multiple directions. The first flange 123 is connected to the outer edge of the radar window 11 and can be inserted into the mounting window 22 along with the radar window 11. The first limiting surface 121 formed by its outer contour can form a preliminary guide and limit with the edge of the mounting window 22, providing a reference for the subsequent positioning of the second flange 124.

[0059] The second flange 124 is connected to the rear end of the first flange 123. As the radar body 1 is further installed, the second limiting surface 122 formed on its front side can limit the outer periphery of the radar window 11 by abutting against the limiting rib 23. The above structure not only makes the assembly process clearer and more orderly, reducing the assembly difficulty, but also enables precise positioning of the radar window 11, reducing appearance gaps and surface differences, and improving the overall assembly accuracy and appearance quality.

[0060] For example, the outer peripheral surface of the first flange 123, i.e. the first limiting surface 121, has an outward slope; similarly, the front side of the second flange 124, i.e. the second limiting surface 122, has a backward slope. This structure facilitates material forming in the processing of the limiting flange 12; at the same time, in terms of installation and limiting, the inclined assembly surface is more conducive to guiding the docking and positioning of the radar window 11 and the installation window 22, which helps to improve assembly efficiency and assembly quality.

[0061] In some embodiments, the aforementioned limiting rib 23 may be adopted as follows: Figure 5 and Figure 8 The structure shown. See also Figure 5 and Figure 8 The limiting ribs 23 include a plurality of first ribs 231 and a plurality of second ribs 232. The plurality of first ribs 231 are respectively disposed on the upper and lower edges of the mounting window 22. The side of the first rib 231 facing the radar window 11 abuts against the first limiting surface 121 to limit the displacement of the radar window 11 in the vertical direction. The plurality of second ribs 232 are respectively disposed on the left and right edges of the mounting window 22. The side of the second rib 232 facing the radar window 11 abuts against the first limiting surface 121 to limit the displacement of the radar window 11 in the horizontal direction. The rear end face of the first rib 231 and the rear end face of the second rib 232 abut against the second limiting surface 122 to limit the forward displacement of the radar window 11.

[0062] In this embodiment, the limiting ribs 23 are formed by a plurality of individual ribs arranged at intervals. This arrangement can not only form a stable limiting force through multiple contact points, but also optimize the stress situation of the limiting ribs 23 through dispersed stress points, which helps to extend the service life of the limiting structure. At the same time, the individual rib structure has a certain degree of elasticity and can be squeezed and deformed as the radar window 11 is inserted, thereby increasing the clamping force on the first limiting surface 121 and improving the limiting effect.

[0063] By setting the limiting ribs 23 as first ribs 231 and second ribs 232 in different positions, a positional division of labor is formed, which can perform full-dimensional limiting constraints on the radar body 1 and avoid the offset problem caused by limiting in a single direction. The first rib 231 is spaced apart at the upper and lower edges of the mounting window 22. By directly abutting against the first limiting surface 121, it can effectively limit the radar window 11 in the ±Z direction, ensuring that the gap between the radar window 11 and the mounting window 22 in the vertical direction is uniform. The second rib 232 is correspondingly located at the left and right edges of the mounting window 22. By abutting against the first limiting surface 121, it can effectively limit the radar window 11 in the ±Y direction, ensuring that the gap between the radar window 11 and the mounting window 22 in the horizontal direction is uniform. The rear ends of the first rib 231 and the second rib 232 abut against the second limiting surface 122, which is equivalent to forming a unified limiting barrier in front of the radar body 1, effectively limiting the radar window 11 in the +X direction, preventing the radar window 11 from protruding forward from the surface of the top cover decoration 2, ensuring uniform surface difference. Subsequently, the radar body 1 can be limited in the -X direction by connecting with the top cover decoration 2 or by the rear limiting structure, thereby further ensuring the effect of uniform surface difference and ensuring the flatness of the appearance.

[0064] Specifically, in this embodiment, the first rib 231 is provided with three on the upper and lower edges of the mounting window 22, and the second rib 232 is provided with one on the left and right edges of the mounting window 22, forming eight limiting points evenly distributed around the circumference of the mounting window 22. The radar window 11 is directly limited by the eight limiting points, ensuring that the gap and surface difference between the radar window 11 and the mounting window 22 are uniform and consistent.

[0065] For some possible implementations, see Figure 8 The top wall of the receiving groove 21 is provided with a top guide 26. The top guide 26 extends in the front-back direction and is fitted to the top surface of the radar body 1. The top guide 26 is used to limit the position of the top surface of the radar body 1 and guide the radar body 1 forward into the installation window 22.

[0066] It should be understood that the radar window 11 is made of glossy plastic. In order to ensure the laser detection accuracy of the radar body 1, it is necessary to avoid bumping or scratching the radar window 11 during the installation process.

[0067] The top guide 26, through its close fit with the top surface of the radar body 1, provides a precise top positioning reference for the installation of the radar body 1. This ensures that when the radar body 1 is placed into the receiving slot 21, it maintains a preset height, posture, and angle, preventing friction and collision between the radar window 11 and the edge of the installation window 22 due to hand deviation or tilting of the radar body 1 during installation. This also avoids scratches, cracks, and other cosmetic damage to the surface of the radar window 11, ensuring the light transmission performance and appearance quality of the radar window 11, and improving the safety and yield of the overall assembly.

[0068] In addition, after the radar body 1 is placed into the receiving groove 21, it is necessary to push the radar body 1 forward slightly to ensure that the limiting rib 23 and the limiting flange 12 are in place. During this process, the top guide part 26 can play a guiding role to avoid the radar body 1 from shifting in an uncertain position during the pushing process.

[0069] Specifically, a downwardly protruding plane is provided on the top wall of the receiving groove 21 to serve as a top guide 26, that is, the top guide 26 is integrally formed with the inner plate 25 of the top cover decorative part 2. Two top guides 26 can be arranged in parallel, and multiple reinforcing ribs are provided between the two top guides 26 to ensure the rigidity of the overall structure.

[0070] See some possible embodiments. Figure 6 , Figure 8 and Figure 9 The two opposite side walls of the receiving groove 21 are respectively provided with side guide parts 27; the two side walls of the radar body 1 are respectively provided with side limiting parts 13, and the side guide parts 27 and the side limiting parts 13 are fitted together.

[0071] The fit between the side guide part 27 and the side limiting part 13 provides a precise left-right positioning reference for the installation of the radar body 1, preventing the radar body 1 from shifting left or right during the process of being placed into the receiving slot 21. This ensures that the radar window 11 is always aligned left and right with the installation window 22, preventing scratches caused by the edge of the radar window 11 colliding with the installation window 22 due to the tilt of the radar body 1. The fit constraint also reduces the number of adjustments during assembly, improving assembly efficiency.

[0072] Specifically, the sidewall of the radar body 1 is provided with multiple elongated ribs extending vertically, and these ribs are spaced apart in the front-rear direction. The outer surfaces of the ribs are flush to form the side limiting part 13, ensuring a good fit with the side guide part 27. By configuring the side guide part 27 with multiple elongated ribs, the ribs can simultaneously strengthen the structural strength of the radar body 1 and assist in heat dissipation. Furthermore, while ensuring a good fit with the side guide part 27, the weight of the side limiting part 13 is reduced, contributing to a lightweight design.

[0073] Furthermore, the side guide portion 27 is positioned near the mounting window 22, and the side limiting portion 13 is positioned near the radar window 11.

[0074] The side guide 27 is positioned close to the mounting window 22, and a space is reserved between it and the mounting window 22 to accommodate the limiting flange 12. When installing the radar body 1, first flip the top cover decorative piece 2 upside down so that the bottom surface faces upward, and at the same time flip the radar body 1 upside down. Then, when placing the radar body 1 into the receiving groove 21, first align the limiting flange 12 with the space between the side guide 27 and the mounting window 22, and then lower the radar body 1 so that the top surface of the radar body 1 contacts the top guide 26, while the side limiting part 13 fits against the side guide 27. At this time, push the radar body 1 forward slightly along the top guide 26 to ensure that the limiting rib 23 on the mounting window 22 abuts against the limiting flange 12.

[0075] During the above process, the side guide 27 located near the mounting window 22 forms a fitting constraint with the side limiting part 13 located near the radar window 11. This can correct the slight displacement of the radar window 11 in the left and right directions in the first instance, ensuring that the radar window 11 is assembled with the mounting window 22 in a stable and aligned manner. This not only minimizes the risk of damage to the appearance of the radar window 11, but also further improves the uniformity of the assembly gap between the radar window 11 and the mounting window 22, ensuring the overall assembly efficiency and accuracy.

[0076] In some embodiments, see Figure 8 and Figure 9 The rear end of the top guide portion 26 is provided with a rear limiting portion 28, which is used to abut against the rear end surface of the radar body 1 to limit the rearward displacement of the radar body 1.

[0077] Under the combined guidance of the top guide portion 26 and the side guide portion 27, the radar body 1 is stably inserted forward into the mounting window 22. Then, the rear limiting portion 28 can be used to abut against the rear end face of the radar body 1 to effectively limit the radar body 1 in the -X direction, preventing the radar body 1 from moving backward and causing the radar window 11 to be recessed relative to the mounting window 22, which helps to ensure the overall assembly appearance.

[0078] It should be noted that the front end face and the bottom face of the rear limiting part 28 are chamfered. After the radar body 1 is placed into the receiving groove 21, it needs to be pushed forward slightly to ensure that the limiting rib 23 and the limiting flange 12 are in place. Therefore, when the radar body 1 initially enters the receiving groove 21, it is affected by the position interference of the rear limiting part 28. There is an angle between its top surface and the guide surface of the top guide part 26. That is, the top surface of the radar body 1 is tilted at this time. As the radar body 1 moves forward, the above-mentioned chamfered transition can guide the radar body 1 to move forward smoothly until the rear end face of the radar body 1 is in contact with the front end face of the rear limiting part 28.

[0079] Thus, at the front end of the radar body 1, the radar window 11 is limited in the ±Y and ±Z directions by the contact between the limiting rib 23 and the first limiting surface 121, and in the +X direction by the contact between the limiting rib 23 and the second limiting surface 122; at the rear end of the radar body 1, the radar body 1 is limited in the -X direction by the contact between the rear limiting part 28 and its rear end surface. The above limiting structure is simple, complete, and reliable, ensuring a uniform gap between the radar window 11 and the mounting window 22 and a consistent concave-convex effect, effectively improving the product's refined appearance.

[0080] Based on this, the cooperation of the top guide part 26, the side guide part 27 and the rear limiting part 28 improves the stability and convenience of the radar body 1 assembly process, ensures the appearance quality of the radar window 11, and has high practicality.

[0081] See some possible embodiments. Figure 7 and Figure 9 The bottom surface of the top cover decorative part 2 is provided with a first mounting post 4, and the rear end face of the radar body 1 is provided with a mounting ear plate 14. The mounting ear plate 14 and the first mounting post 4 are connected by a first fastener 41.

[0082] After the radar body 1 is installed into the receiving groove 21 and the limiting rib 23 and the limiting flange 12 are in place, the rear limiting part 28 abuts against the rear end face of the radar body 1, and the mounting ear plate 14 is attached to the end face of the first mounting post 4. The mounting ear plate 14 is connected to the first mounting post 4 by the first fastener 41, thus realizing a precise and stable connection between the radar body 1 and the top cover decoration 2.

[0083] Specifically, two sets of mounting lugs 14 and first mounting posts 4 are provided respectively. Two rear limiting parts 28 are provided along with the top guide part 26. Both rear limiting parts 28 are located between the two mounting lugs 14 to avoid interference between the rear limiting parts 28 and the mounting lugs 14, and to ensure that the rear limiting parts 28 abut against the rear end face of the radar body 1. The first fastener 41 can be a hexagonal head bolt or a self-tapping screw, as long as it can achieve a stable connection between the mounting lugs 14 and the first mounting posts 4.

[0084] Based on the same inventive concept, this application also provides a vehicle, see [link to relevant documentation]. Figure 1 , Figure 2 and Figure 5 The vehicle includes a roof panel 3 and the aforementioned lidar mounting structure, which is connected above the roof panel 3; the lidar body 1 is connected to the roof panel 3 by a second fastener 151; and the roof trim 2 is connected to the roof panel 3 by a third fastener 51.

[0085] The vehicle provided in this application embodiment, due to including the aforementioned lidar mounting structure, possesses all the beneficial effects of the aforementioned lidar mounting structure. Compared with the prior art, by using the limiting rib 23 provided on the edge of the mounting window 22 of the roof trim 2 to abut against the limiting flange 12 provided on the outer edge of the lidar window 11 to limit the lidar window 11, the assembly dimension chain in the traditional limiting structure is significantly shortened, effectively avoiding the accumulation of assembly errors; at the same time, the limiting action point matches the appearance mating point, and the limiting accuracy can be directly converted into assembly accuracy, which can accurately control the relative position of the lidar window 11 and the mounting window 22, avoiding the problems of mating gaps and uneven surface differences, and significantly improving the appearance quality of the vehicle.

[0086] Specifically, the roof cover 3, as a sheet metal part of the vehicle roof, is located above and behind the windshield 6. The roof cover 3 has mounting positions for the radar body 1 and the roof cover trim 2. The side wall of the radar body 1 has three second mounting posts 15. The mounting positions on the roof cover 3 have three bolt holes corresponding to the second mounting posts 15. Second fasteners 151 pass through the bolt holes on the roof cover 3 and are threaded onto the second mounting posts 15, achieving a reliable connection between the radar body 1 and the roof cover 3. The inner panel 25 of the roof cover trim 2 also has multiple third mounting posts 5. The mounting positions on the roof cover 3 have multiple bolt through holes corresponding to the third mounting posts 5. Third fasteners 51 pass through the bolt through holes and are connected to the third mounting posts 5, achieving a reliable connection between the roof cover trim 2 and the roof cover 3. Ultimately, this achieves a stable assembly between the radar body 1, the roof cover trim 2, and the roof cover 3 on the vehicle roof.

[0087] Specifically, the second fastener 151 and the third fastener 51 can be hexagonal head bolts or a combination of studs and nuts, without any specific limitations.

[0088] It should be noted that most existing LiDAR systems are connected to the sheet metal parts on the roof of the vehicle via adapter brackets. While the adapter brackets achieve a certain degree of compatibility between the LiDAR and the roof sheet metal, they significantly increase the complexity of the overall structure. This not only increases the R&D, manufacturing, and assembly costs of the components, but may also affect the final installation accuracy of the LiDAR due to the cumulative errors in the assembly of multiple components.

[0089] In this embodiment, when installing the radar body 1, first ensure that the limiting rib 23 and the limiting flange 12 are in place, then connect the radar body 1 to the top cover trim 2 using the first fastener 41 to form a lidar mounting structure. This lidar mounting structure ensures that the gap and surface difference between the radar window 11 and the mounting window 22 are uniform. Then, connect the radar body 1 directly to the top cover 3 using the second fastener 151, and simultaneously connect the top cover trim 2 to the top cover 3 using the third fastener 51, thus completing the connection between the entire lidar mounting structure and the vehicle roof. This connection structure eliminates the need for traditional adapter brackets, ensuring installation strength, simplifying the structural composition, reducing manufacturing costs, and significantly reducing the Z-axis height of the roof, meeting the vehicle's lightweight design requirements.

[0090] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lidar mounting structure, characterized in that, include: The radar body (1) has a radar window (11), the outer edge of which is provided with a limiting flange (12), the limiting flange (12) having a first limiting surface (121) and a second limiting surface (122) set at an angle; and The top cover decorative piece (2) has a receiving groove (21) on the bottom surface. The radar body (1) is installed in the receiving groove (21). The front end of the receiving groove (21) has an installation window (22). The installation window (22) is used to expose the radar window (11). The mounting window (22) has a rearwardly extending limiting rib (23) at its edge. The limiting rib (23) can abut against the first limiting surface (121) to limit the displacement of the radar window (11) in a direction perpendicular to the front-back direction. The limiting rib (23) can also abut against the front side of the second limiting surface (122) to limit the forward displacement of the radar window (11).

2. The lidar mounting structure as described in claim 1, characterized in that, The top cover decoration (2) includes an outer plate (24) and an inner plate (25) that are sequentially fitted together. The installation window (22) is provided through the outer plate (24) and the inner plate (25). The limiting rib (23) is provided on the outer plate (24). The receiving groove (21) is provided on the inner plate (25). The radar body (1) is locked and connected to the inner plate (25).

3. The lidar mounting structure as described in claim 1, characterized in that, The limiting flange (12) includes: The first flange (123) is connected to the outer edge of the radar window (11), and the outer peripheral surface of the first flange (123) forms the first limiting surface (121); and The second flange (124) is connected to the rear end of the first flange (123), and the front side of the second flange (124) forms the second limiting surface (122).

4. The lidar mounting structure as described in claim 1, characterized in that, The limiting rib (23) includes: A plurality of first ribs (231) are respectively disposed on the upper and lower edges of the mounting window (22). The side of the first rib (231) facing the radar window (11) abuts against the first limiting surface (121) to limit the displacement of the radar window (11) in the vertical direction; and Several second ribs (232) are respectively provided on the left and right sides of the mounting window (22). The side of the second rib (232) facing the radar window (11) abuts against the first limiting surface (121) to limit the displacement of the radar window (11) in the left and right directions. The rear end face of the first rib (231) and the rear end face of the second rib (232) respectively abut against the second limiting surface (122) to limit the forward displacement of the radar window (11).

5. The lidar mounting structure as described in claim 1, characterized in that, The top wall of the receiving groove (21) is provided with a top guide (26). The top guide (26) extends in the front-back direction and is fitted to the top surface of the radar body (1). The top guide (26) is used to limit the position of the top surface of the radar body (1) and guide the radar body (1) forward into the mounting window (22).

6. The lidar mounting structure as described in claim 5, characterized in that, The receiving groove (21) has two oppositely arranged groove side walls respectively provided with side guide parts (27); the radar body (1) has two side limit parts (13) respectively provided on its two side walls. The side guide parts (27) and the side limit parts (13) are fitted together to limit the position of the left and right side walls of the radar body (1).

7. The lidar mounting structure as described in claim 6, characterized in that, The side guide portion (27) is disposed near the mounting window (22), and the side limiting portion (13) is disposed near the radar window (11).

8. The lidar mounting structure as described in claim 5, characterized in that, The rear end of the top guide part (26) is provided with a rear limiting part (28), which is used to abut against the rear end surface of the radar body (1) to limit the rearward displacement of the radar body (1).

9. The lidar mounting structure as described in claim 1, characterized in that, The bottom surface of the top cover decoration (2) is provided with a first mounting post (4), and the rear end surface of the radar body (1) is provided with a mounting ear plate (14). The mounting ear plate (14) and the first mounting post (4) are connected by a first fastener (41).

10. A vehicle, characterized in that, Includes a top cover plate (3) and a lidar mounting structure as described in any one of claims 1-9, wherein the lidar mounting structure is connected above the top cover plate (3); The radar body (1) is connected to the top cover plate (3) by a second fastener (151); the top cover decorative piece (2) is connected to the top cover plate (3) by a third fastener (51).

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