A front bumper ADAS module adjusting structure and a front bumper assembly with the same

Abstract

The application relates to the front protection field, in particular to an adjusting structure for a front protection ADAS module and a front protection assembly with the adjusting structure, which comprises a fixed clamping base connected to a front bumper, an adjusting bushing is arranged on the fixed clamping base; the adjusting bushing and the fixed clamping base can relatively move; the adjusting structure can drive the front protection to deform; the adjusting structure disclosed by the application can realize the adjustment of the pitch angle of the ADAS module on the front bumper body; the pitch angle of the ADAS module is adjusted through the deformation of the front bumper body.

Description

Technical Field

[0001] This invention relates to the field of front bumper systems, specifically to an adjustment structure for a front bumper ADAS module and a front bumper assembly having the adjustment structure. Background Technology

[0002] With the development of automotive technology, the market competition for driver assistance technology in the automotive industry is now fierce, and the intelligent modules integrated on the front bumper of cars are becoming more and more advanced.

[0003] Assisted driving technology encompasses multiple fields such as sensors, algorithms, data processing, and control strategies. Each of these is crucial to the success of assisted driving technology. For example, sensor fusion technology can combine information acquired by multiple sensors such as LiDAR, millimeter-wave radar, and high-definition cameras to provide a more accurate and comprehensive environmental perception capability.

[0004] The precise placement of sensors greatly affects the performance of driver assistance systems.

[0005] The working principle of millimeter-wave radar is to transmit high-frequency microwave signals, scan and receive reflected signals, and accurately obtain the distance and speed of target objects.

[0006] The installation location of millimeter-wave radar is crucial to its performance; the roof, front bumper, and around the headlights are all ideal choices.

[0007] When selecting the installation location for millimeter-wave radar, it is necessary to consider the actual needs of the vehicle and the usage environment.

[0008] According to research on mainstream car manufacturers, millimeter-wave radar placement on the front bumper has become a major trend.

[0009] The study found that two important physical quantities affecting the performance of millimeter-wave radar are the elevation angle and the horizontal angle of the millimeter-wave radar installation.

[0010] The horizontal angle affects the horizontal range of radar detection. To put it more intuitively, it affects the left-right symmetry, which affects the effective detection distance and blind zone of the lanes on both sides of the millimeter-wave radar. The pitch angle affects the effective detection distance of the radar in front. To put it intuitively, it is similar to the principle of a flashlight. When the pitch angle decreases, the illumination distance also decreases.

[0011] A survey of the installation methods of front bumpers and body frames of major car manufacturers revealed that traditional car front bumpers are basically fixed to the front assembly of the body with upper and lower bolts, and the sides are fixed to the fenders of the body by their own snap-fit ​​structure.

[0012] In particular, some car models have a front bumper with a support structure designed in the front anti-collision beam due to its heavy weight, which restrains the front bumper in the Z direction and prevents the front bumper from sinking after assembly.

[0013] Given this structural condition, installing millimeter-wave radar on the front bumper requires standardized requirements for each installation point on the front bumper to ensure the corresponding accuracy.

[0014] Currently, front bumpers on the market are fixed to the vehicle body with fasteners and rely on their own dimensional chain to absorb pitch angle deviations. The pitch angle tolerance can reach ±1 degree, which cannot completely eliminate pitch angle deviations.

[0015] To address the above problems, the existing technologies mainly offer the following adjustment solutions:

[0016] Adjusting the entire front bumper assembly: This involves macroscopically adjusting the position of the entire front bumper using methods such as shims, adjusting mounting brackets, or forcibly bending it, in order to change the angle of the ADAS module. This method is crude, has low adjustment precision, and is prone to causing damage to the front bumper or connecting parts due to stress concentration. It may even create new gaps, surface differences, and other appearance quality problems in other locations.

[0017] Designing adjustment or mounting brackets: For example, patent CN219706848 U discloses an angle-adjustable car radar bracket; while designing a separate dedicated adjustment bracket made of sheet metal with long strip holes or eccentric bolts for ADAS modules; although this solution can achieve a certain degree of adjustment, it significantly increases the number of parts, weight and material costs.

[0018] Integrating the adjustment mechanism into the sensor body: This approach shifts the cost to the expensive ADAS sensor itself, greatly increasing the unit cost, making it uneconomical and difficult to apply in mass-market vehicles where cost control is a priority.

[0019] Therefore, in order to improve or solve at least one of the above technical problems, an auxiliary mechanism is needed to help adjust the pitch angle of the ADAS module. Summary of the Invention

[0020] The purpose of this invention is to provide an adjustment structure that can adjust the pitch angle of the ADAS module on the front bumper.

[0021] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0022] An adjustment structure for a front bumper ADAS module includes a fixed bracket connected to the front bumper, wherein an adjustment bushing is provided on the fixed bracket;

[0023] The adjusting bushing and the fixed bracket can move relative to each other; the adjusting structure can cause the front guard to deform.

[0024] The adjusting bushing is connected to the fixed bracket via a connecting component; the connecting component includes an assembly slot on the fixed bracket; the assembly slot has an internal thread; the adjusting bushing has an external thread; the adjusting bushing and the fixed bracket are connected by threads.

[0025] The fixed mounting bracket includes a base body, with a fixed end plate on one side and a snap-fit ​​end plate on the other side; the fixed end plate and the snap-fit ​​end plate are spaced apart.

[0026] The fixed end plate is an annular plate, and the snap-fit ​​end plate is a straight plate; the horizontal projection of the fixed card seat is I-shaped.

[0027] The locking end plate in the fixed card holder is provided with a first tooth group; the first tooth group includes a plurality of first locking teeth disposed on the locking end plate.

[0028] The adjusting bushing includes a bushing body; the bushing body is provided with an adjusting groove.

[0029] The assembly through groove is a stepped groove; the assembly through groove includes a main through groove and an insertion through groove; the inner diameter of the main through groove is larger than the inner diameter of the insertion through groove; the bushing body includes a bushing base, and the end of the bushing base is provided with a protruding ring rib; the protruding ring rib in the bushing body is inserted into the insertion through groove of the assembly through groove.

[0030] A front bumper assembly includes a front bumper body, wherein the front bumper body is provided with an ADAS module and an adjustment structure for the front bumper ADAS module;

[0031] The front bumper ADAS module is pressed against the vehicle body using an adjustment structure;

[0032] The front bumper body is provided with an assembly groove; the front bumper body is provided with a second set of teeth near the edge of the assembly groove; the second set of teeth includes a second snap-fit ​​tooth; the first set of teeth and the second set of teeth can mesh with each other.

[0033] At least one of the aforementioned front-side ADAS modules has an adjustment structure positioned directly below the ADAS module to be adjusted.

[0034] The front ADAS module can be connected to the vehicle body via fasteners using an adjustment structure.

[0035] The advantages of this invention are:

[0036] This invention discloses an adjustment structure for a front bumper ADAS module and a front bumper assembly having the adjustment structure.

[0037] The adjustment structure disclosed in this invention can realize the adjustment of the pitch angle of the corresponding ADAS module on the front bumper body; this invention realizes the adjustment of the pitch angle of the ADAS module by the deformation of the front bumper body. Attached Figure Description

[0038] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0039] Figure 1 This is a schematic diagram of the adjustment structure in this invention.

[0040] Figure 2 This is an exploded view of the adjustment structure in this invention.

[0041] Figure 3 This is a front view of the fixed card holder in this invention.

[0042] Figure 4 This is a top view of the fixed card holder in this invention.

[0043] Figure 5 This is a schematic diagram of the adjusting bushing structure in this invention.

[0044] Figure 6 for Figure 5 A cross-sectional view along BB.

[0045] Figure 7 This is a right view of the fixed card holder in this invention.

[0046] Figure 8 for Figure 7 A cross-sectional view along AA.

[0047] Figure 9 This is a schematic diagram of the front bumper from a first-view perspective in this invention.

[0048] Figure 10 This is a structural schematic diagram of the front bumper from a second perspective in this invention.

[0049] Figure 11 This is a schematic diagram of the adjustment structure of the present invention when it is installed on the front bumper body.

[0050] Figure 12 for Figure 11 A magnified view of a portion of the image.

[0051] Figure 13 This is a partial structural diagram of the mounting groove on the front bumper in this invention.

[0052] Figure 14 This is a schematic diagram of the adjustment structure of the present invention when it is installed in the assembly slot.

[0053] Figure 15This is a cross-sectional view of the adjustment structure of the present invention when it is installed on the front bumper body.

[0054] Figure 16 for Figure 15 A magnified view of a portion of the image.

[0055] The markings in the above figures are all:

[0056] 1. Adjustment structure, 2. ADAS module, 3. Bolts, 4. Front anti-collision beam, 5. Front bumper body, 6. Mounting bracket. Detailed Implementation

[0057] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and the description of the preferred embodiments.

[0058] An adjustment structure for a front bumper ADAS module includes a fixed bracket 11 connected to the front bumper, and an adjustment bushing 12 provided on the fixed bracket 11; the adjustment bushing 12 and the fixed bracket 11 are movable relative to each other; the adjustment structure 1 can cause the front bumper to deform; the adjustment structure 1 disclosed in this invention can realize the adjustment of the pitch angle of the ADAS module 2 on the front bumper body 5; this invention realizes the adjustment of the pitch angle of the ADAS module 2 by deforming the front bumper body 5.

[0059] The adjustment structure 1 for the front bumper ADAS module 2 disclosed in this invention is mainly installed on the front bumper body 5. Subsequently, the adjustment structure 1 of this invention drives the local elastic deformation of the front bumper through its own extension and retraction, thereby finely adjusting the pitch angle of the ADAS module 2. In this invention, the fixed bracket 11 is connected to the front bumper, and the adjustment bushing 12 is connected to the fixed bracket 11. In subsequent use, the adjustment bushing 12 can move on the fixed bracket 11. Subsequently, the adjustment bushing 12 presses against the vehicle body, and the adjustment structure 1 can support or pull the front bumper body 5, thereby causing the front bumper body 5 to deform, and ultimately driving the adjustment operation of the pitch angle of the ADAS module 2.

[0060] The adjustment structure 1 disclosed in this invention can achieve stepless, online adjustment of the pitch angle of the ADAS module 2 by utilizing the synergistic effect of continuous threaded feed and elastic deformation of plastic without adding a metal support, and has the combined advantages of extremely simple structure and extremely low cost.

[0061] Furthermore, in this invention, the adjusting bushing 12 and the fixed bracket 11 are connected by a connecting component. The connecting component facilitates the connection between the adjusting bushing 12 and the fixed bracket 11, and also facilitates subsequent adjustment operations. The connecting component includes an assembly slot 102 on the fixed bracket 11; the assembly slot 102 has an internal thread 1023; the adjusting bushing 12 has an external thread 1223; and the adjusting bushing 12 and the fixed bracket 11 are connected by threads. Based on the above design, this invention allows the adjusting bushing 12 to move axially within the assembly slot 102 of the fixed bracket 11.

[0062] Furthermore, in this invention, the fixed bracket 11 includes a base body 111, with a fixed end plate 112 on one side and a snap-fit ​​end plate 113 on the other side; the fixed end plate 112 and the snap-fit ​​end plate 113 are spaced apart; the fixed end plate 112 is an annular plate, and the snap-fit ​​end plate 113 is a straight plate; the fixed bracket 11 has an H-shaped horizontal projection; based on the above design, the base body 111 is inserted into the mounting groove 51 of the front bumper body 5, the fixed end plate 112 is located at the front end of the front bumper body 5, and the snap-fit ​​end plate 113 is located at the rear end of the front bumper body 5. Based on this design, the fixed bracket 11 is installed on the front bumper body 5.

[0063] In order to facilitate the insertion of the fixing bracket 11 into the front bumper body 5, the present invention requires the assembly groove 51 to include a central hole 52, and a slot hole is provided on both sides of the central hole 52; similar to a candy structure, mainly to facilitate the insertion of the fixing bracket 11 through the front bumper body 5; essentially to facilitate the insertion of the end plate 113 through the front bumper body 5.

[0064] In this invention, the locking end plate 113 of the fixed bracket 11 is provided with a first tooth group 114; the first tooth group 114 includes a plurality of first locking teeth provided on the locking end plate 113; the first tooth group 114 is mainly used in conjunction with the second tooth group; to prevent the fixed bracket 11 from rotating on the front bumper body 5 without the action of external force after it is assembled on the front bumper body 5.

[0065] In this invention, the adjusting bushing 12 includes a bushing body 122; the bushing body 122 is provided with an adjusting groove 121; the bushing body 122 is the main structure of the adjusting bushing 12, and the adjusting groove 121 is essentially a recessed groove structure formed at the end of the bushing body 122, which is mainly to facilitate the subsequent insertion of a tool into the adjusting groove 121 to realize the rotation operation of the adjusting bushing 12.

[0066] Furthermore, in this invention, the assembly through groove 102 is a stepped groove; the assembly through groove 102 includes a main through groove 1021 and an insertion through groove 1022; the inner diameter of the main through groove 1021 is larger than the inner diameter of the insertion through groove 1022; the bushing body 122 includes a bushing base 1221, and the end of the bushing base 1221 is provided with a protruding ring rib 1222; the protruding ring rib 1222 in the bushing body 122 is inserted into the insertion through groove 1022 of the assembly through groove 102; the protruding ring rib 1222 of this invention... The bushing base 1221 is configured such that the bushing body 122 is a stepped block structure, and the main body through groove 1021 and the insertion through groove 1022 are configured such that the assembly through groove 102 is a stepped groove. In this invention, the bushing base 1221 is provided with an external thread 1223 on the outside; the main body through groove 1021 is provided with an internal thread 1023 on the inner wall; the adjustment groove 121 is provided on the protruding ring rib 1222; the protruding ring rib 1222 acts as an insertion limiting member, which better ensures the installation and insertion of the bushing body 122 on the fixed card seat 11.

[0067] A front bumper assembly includes a front bumper body 5, on which an ADAS module 2 and an adjustment structure 1 for the front bumper ADAS module 2 are provided; the adjustment structure 1 for the front bumper ADAS module 2 presses against the vehicle body; the adjustment structure 1 of the present invention drives the local elastic deformation of the front bumper through its own extension and retraction, thereby finely adjusting the pitch angle of the ADAS module 2; the ADAS module 2 of the present invention mainly includes sensors disposed on the front bumper body 5.

[0068] In this invention, the front bumper body 5 is provided with an assembly groove 51; the assembly groove 51 is provided on the front bumper body 5, mainly for installing the adjustment structure 1, and also for the through-mounting installation of the adjustment structure 1 on the front bumper body 5.

[0069] In this invention, the front bumper body 5 is provided with a second set of teeth near the edge of the mounting groove 51; the second set of teeth includes a second snap-fit ​​tooth; the first set of teeth 114 and the second set of teeth can mesh with each other; this invention avoids the rotation of the adjustment structure 1 on the front bumper body 5 without the action of external force by using the cooperation of the first set of teeth 114 and the second set of teeth.

[0070] In this invention, at least one of the front bumper ADAS modules 2 is positioned directly below the ADAS module 2 to be adjusted. Generally, the ADAS module 2 to be adjusted is installed on the upper edge of the middle of the front bumper body 5, above the license plate. In this invention, at least one adjustment structure 1 is installed in the middle area of ​​the license plate. Because in actual use, the ADAS module 2 to be adjusted at the front end of the front bumper body 5 only needs to adjust the pitch angle, this invention requires at least one of the front bumper ADAS module 2 adjustment structures 1 to be positioned directly below the ADAS module 2 to be adjusted.

[0071] Furthermore, in this invention, the front bumper ADAS module 2 using the adjustment structure 1 can be connected to the vehicle body via fasteners; the fasteners pass through the fixing bracket 11 and the adjustment bushing 12 and are connected to the vehicle body. To facilitate actual connection, in this invention, the front bumper body 5 is connected to the front anti-collision beam 4 via the mounting bracket 6; during actual installation, the front bumper ADAS module 2 using the adjustment structure 1 is required to be connected to the front anti-collision beam 4 of the vehicle body via the mounting bracket 6.

[0072] Example 1:

[0073] The adjustment structure 1 disclosed in this invention, in conjunction with the bolt 3, can achieve local deformation of the front bumper body 5.

[0074] The adjustment structure 1 disclosed in this invention mainly includes a fixed card seat 11 and an adjustment bushing 12.

[0075] Fixed bracket 11: Made of POM (polyoxymethylene) engineering plastic through injection molding, its horizontal projection is in the shape of "I".

[0076] The fixing bracket 11 includes a cylindrical base body 111, with an annular fixing end plate 112 extending from one side and a long strip snap-fit ​​end plate 113 (i.e., a straight plate) extending from the other side, the two being spaced apart.

[0077] At the center of the base body 111, there is a through mounting slot 102.

[0078] The through groove is a stepped groove, consisting of a main through groove 1021 with a larger inner diameter and an insertion through groove 1022 with a smaller inner diameter and internal threads 1023112.

[0079] A first tooth group 114 is provided at the end of the snap-fit ​​end plate 113, and each group contains a plurality of evenly distributed first snap-fit ​​teeth.

[0080] Adjusting bushing 12: Also made of POM material by injection molding.

[0081] It includes a cylindrical bushing base 1221 with external threads 1223 machined on its outer side to match the internal threads 1023112 of the retaining seat 11.

[0082] A protruding ring rib 1222 is provided at one end of the bushing base 1221, and a straight adjustment groove 121 is provided on the end face of the protruding ring rib 1222.

[0083] The center of the adjusting bushing 12 is provided with a light hole as a through hole 101 for inserting the fastening bolt 3.

[0084] The protruding ring rib 1222 of the adjusting bushing 12 is inserted into the insertion slot 1022 of the fixed card seat 11, so that its external thread 1223 engages with the internal thread 1023112 of the fixed card seat 11, thereby assembling the two into a relatively movable whole.

[0085] The front bumper assembly disclosed in this invention includes a front bumper body 5, an ADAS module 2, and the aforementioned adjustment structure 11.

[0086] Front bumper body 5: Made of plastic, with inherent elasticity.

[0087] The ADAS module 2 (radar sensor) is installed at the upper center position.

[0088] A mounting slot 51 is provided directly below the ADAS module 2, in the area of ​​the front bumper body 5 corresponding to the license plate mounting area.

[0089] Each assembly slot 51 consists of a central hole 52 and slots on both sides, forming a through structure resembling a candy or dumbbell.

[0090] The snap-fit ​​end plate 113 (the end with the first tooth set 114) of the fixed card holder 11 passes sequentially through the center hole 52 and the slot of the mounting groove 51 from the front of the front bumper body 5, so that the snap-fit ​​end plate 113 is completely inserted to the rear of the front bumper body 5, while the fixed end plate 112 is snapped in front of the front bumper body 5.

[0091] Subsequently, the fixing bracket 11 is rotated approximately 90 degrees. At this time, the first set of teeth 114 on the snap-fit ​​end plate 113 engages with the second set of teeth (i.e., the second snap-fit ​​teeth) pre-placed on the inner side of the edge of the mounting groove 51 of the front bumper body 5. This design effectively prevents the fixing bracket 11 from rotating unexpectedly, ensuring its reliable connection on the front bumper body 5.

[0092] Adjustment working principle:

[0093] During vehicle assembly, the front bumper assembly is initially fixed to the vehicle body and the front anti-collision beam 4 through the mounting holes around it.

[0094] The end of the adjusting bushing 12 of the adjusting structure 11 just abuts against the mounting bracket 6 in front of the front anti-collision beam 4 of the vehicle body.

[0095] When it is necessary to calibrate the pitch angle of ADAS module 2, the operator shall perform the following steps:

[0096] Adjustment: Using a flathead screwdriver or similar tool, insert it into the adjustment slot 121 of the adjustment bushing 12 and rotate it.

[0097] Since the fixed bracket 11 is locked to prevent rotation by tooth meshing, the rotational action will force the adjusting bushing 12 to move axially (runaway) through the threaded pair.

[0098] Rotate clockwise: Unscrew the adjusting bushing 12 and push it forward to the vehicle body mounting point.

[0099] This action forces a small elastic deformation in a localized area of ​​the flexible front bumper body 5, thereby causing the ADAS module 2 above to "lift up".

[0100] Counterclockwise rotation: Screwing the adjusting bushing 12 in reduces the thrust on the front bumper body 5 or generates a backward pull. The front bumper body 5 moves backward under its own elastic recovery, thereby driving the ADAS module 2 to "lower".

[0101] In order to achieve the concave shape of the front bumper, the present invention requires bolt 3 to pass through the adjustment structure 1 and be connected to the front anti-collision beam 4; the concave adjustment of the front bumper body 5 is achieved by pulling bolt 3.

[0102] Real-time monitoring via optical calibration equipment: once the pitch angle of ADAS module 2 is precisely adjusted to the ideal value of 0 degrees, bolts 3 are passed through the through holes 101 of the adjusting bushing 12 and tightened onto the mounting bracket 6 of the front anti-collision beam 4 of the vehicle body.

[0103] This achieves final rigid fixation of the front bumper assembly at that point, effectively preventing angular changes caused by vibration during vehicle operation.

[0104] Summary of the advantages of this embodiment:

[0105] This embodiment successfully demonstrates a simple, low-cost, and efficient ADAS calibration solution.

[0106] It cleverly utilizes the elastic deformation of plastic parts and the precision of threaded transmission to achieve stepless fine adjustment of the pitch angle of ADAS module 2 through rotation adjustment, with an accuracy of 0 degree deviation.

[0107] The entire adjustment structure 1 consists of only two injection-molded parts, which is extremely low in cost and lightweight. It does not require any changes to the main body structure of the vehicle, making it easy to promote and apply on existing production lines and significantly improving production efficiency and calibration accuracy.

[0108] Example 2:

[0109] The present invention provides an adjustment structure 1, which mainly includes a fixed card seat and an adjustment bushing 12.

[0110] Fixed bracket: It is an I-shaped structure injection molded from POM material, including a base body 111, an annular fixed end plate 112 and a straight snap-fit ​​end plate 113.

[0111] The core features of the fixed card holder include: internal thread 1023: located in the assembly through groove 102 at the center of the fixed card holder. This through groove is a stepped groove, which is composed of a main through groove 1021 with a larger inner diameter and an insertion through groove 1022 with a smaller inner diameter and internal thread 1023.

[0112] First tooth group 114: Located on both sides of the snap-fit ​​end plate 113, it includes multiple first snap-fit ​​teeth, which are used to engage with the corresponding structure on the front bumper body 5, and play the role of anti-rotation and initial positioning.

[0113] Adjusting bushing 12: Also injection molded from POM material, the core features of adjusting bushing 12 include:

[0114] External thread 1223: It mates with the internal thread 1023 of the fixed bracket to form a precision thread pair.

[0115] Protruding ring rib 1222: Located at the front end of the bushing, it is used to insert the insertion slot 1022 of the fixed card seat, and plays a guiding and limiting role.

[0116] Adjustment groove 121: Located at the tail of the adjustment bushing, it is used to receive the torque of tools (such as pry bars or screwdrivers) to drive the bushing to rotate.

[0117] Through hole 101: This is a smooth hole used to pass through fastening bolts 3 (such as M6 bolts 3), ultimately locking the entire structure to the vehicle body.

[0118] The front bumper assembly disclosed in this invention mainly includes a front bumper body 5, an ADAS module 2, and at least one of the aforementioned adjustable mounting structures.

[0119] Front bumper body 5: Made of plastic, with elastic deformation properties. It features:

[0120] Multiple standard mounting holes: for fixing to the front crossbeam and front bumper beam 4 of the vehicle body via bolts 3.

[0121] The slot hole and the second tooth group are located at the mounting position of the adapter adjustment structure 1.

[0122] The second set of teeth includes a second snap-fit ​​tooth for engaging with the first set of teeth 114 on the fixed holder.

[0123] Assembly and adjustment relationship:

[0124] Installation: Align the first tooth set 114 of the fixing bracket of the adjustment structure 1 with the slot hole on the front bumper body 5, and then rotate it about 90 degrees to make the first tooth set 114 fully engage with the second tooth set, thereby fixing the adjustment structure 1 on the front bumper.

[0125] Adjustment: Initially install the front bumper assembly onto the vehicle body.

[0126] When the pitch angle of ADAS module 2 needs to be calibrated, insert the tool into the adjustment slot 121 of the adjustment bushing 12 and rotate it.

[0127] The rotary motion is converted into linear displacement by using the threaded joint, and the adjusting bushing 12 extends or retracts accordingly.

[0128] This action pushes or pulls a localized area of ​​the front bumper, utilizing the elastic deformation of the bumper's plastic material to precisely change the pitch angle of the ADAS module 2 integrated on it.

[0129] Locking: After the pitch angle of ADAS module 2 is adjusted to the ideal value of 0 degrees, pass an M6 bolt 3 through the center hole 52 of the adjusting bushing 12 and tighten it into the corresponding threaded hole of the vehicle body (usually the front bumper beam 4) to achieve final rigid fixation and prevent angle changes due to vibration during driving.

[0130] Beneficial effects of the invention:

[0131] Precision adjustment: By using a threaded drive, the angular rotation is converted into micron-level linear displacement, achieving high-precision, stepless adjustment of the pitch angle of ADAS module 2, with a deviation of 0 degrees.

[0132] Simple structure and low cost: The entire structure consists of only two injection-molded parts, made of common materials, with mature manufacturing processes, and lightweight, which greatly controls costs.

[0133] High reliability: Through tooth meshing to prevent rotation and bolt 3 for final locking, the adjustment results are ensured to maintain long-term stability under complex vehicle operating conditions.

[0134] High integration without altering the main design: This structure can be directly integrated into existing bumper designs without requiring major modifications to the vehicle body structure, making it easy to promote and apply on existing models.

[0135] Improved production efficiency: Allows for rapid calibration at the final assembly line of the vehicle, simplifying the process, reducing rework, and improving production efficiency.

[0136] Example 3:

[0137] This invention discloses an adjustment structure 1 for a front bumper ADAS module 2, which is installed on the front bumper body 5.

[0138] The adjustment structure 1 disclosed in this invention mainly includes a fixed bracket 11 and an adjustment bushing 12; the fixed bracket 11 is fixedly connected to the front bumper body 5.

[0139] The function of adjustment structure 1 is to enable the front bumper to be adjusted back and forth in certain areas. The front bumper is made of plastic and has elastic deformation characteristics, thereby correcting the pitch angle of ADAS module 2.

[0140] The adjustment structure 1 provided by this invention utilizes the characteristics of a thread to convert the rotation angle into a displacement, thus having the characteristic of high adjustment accuracy. When the front bumper adopts this adjustment structure 1, the pitch angle of the ADAS module 2 can achieve 0-degree deviation.

[0141] The specific working principle is as follows:

[0142] As shown in the figure, the adjustment structure 1 disclosed in this invention includes a fixed card seat 11 and an adjustment bushing 12.

[0143] The fixing bracket 11 is formed by injection molding and is made of POM. The fixing bracket 11 has an internal thread 1023 and a first tooth set 114. The front bumper body 5 has a second tooth set at the edge of the mounting groove 51.

[0144] The adjusting bushing 12 is injection molded from POM. The adjusting bushing 12 has external threads 1223 and an adjusting groove 121. The adjusting bushing 12 also has a through hole 101 in the middle. The bolt 3 passes through the through hole 101 in the middle of the adjusting bushing 12 and is connected to the mounting bracket 6 of the anti-collision beam.

[0145] The fixed bracket 11 and the adjusting bushing 12 are integrated by the internal thread 1023112 and the external thread 1223, and the extension and retraction function is realized by the thread being screwed in and out.

[0146] As shown in the figure, the present invention discloses a front bumper assembly, including a front bumper body 5, an ADAS module 2, and a front anti-collision beam 4; the upper part of the front bumper body 5 has four upper mounting holes, namely a first mounting hole 311, a second mounting hole 312, a third mounting hole 313, and a fourth mounting hole 314, and the four upper mounting holes of the front bumper body 5 are fixedly connected to the front end module crossbeam of the vehicle body by M6 bolts 3.

[0147] The front bumper body 5 has a left snap-fit ​​flange 321 and a right snap-fit ​​flange 322 on both sides. The front bumper body 5 is fixed to the fender bracket on both sides by snap-fit ​​flanges.

[0148] The front bumper body 5 also has lower mounting holes, namely a lower first mounting hole 331, a lower second mounting hole 332, and a lower third mounting hole 333. The three lower mounting holes of the front bumper body 5 are connected and fixed to the front anti-collision beam 4 by M6 bolts 3.

[0149] The ADAS module 2 of the present invention is integrated on the front bumper body 5, and the adjustment structure 11 is fixed on the front bumper body 5.

[0150] As shown in the figure, in order to adapt to the adjustment structure 11, the front bumper body 5 also has a center hole 52, a first slot hole 341 and a second slot hole 342.

[0151] During the installation process, firstly, the two snap-fit ​​end plates 113 on the adjustment structure 11 are passed through the mounting grooves 51 on the front bumper body 5. The snap-fit ​​end plates 113 are respectively aligned with the first snap-fit ​​hole 341 and the second snap-fit ​​hole 342 on the front bumper body 5. Due to the rotational symmetry design, there is no need to distinguish the snap-fit ​​holes. Then, the adjustment structure 11 is rotated 90 degrees around the rack direction and engages with the second tooth set in two areas on the front bumper body 5. At this time, the adjustment structure 11 and the front bumper body 5 are connected as one unit.

[0152] In this invention, the front bumper is installed behind the vehicle body. Due to the accumulated tolerances of the mounting holes, the ADAS module 2 will fluctuate within a certain range when calibrating the pitch angle. At this time, the adjustment groove 121 is rotated using a pry tool. The rotation angle is converted into a displacement by utilizing the thread characteristics, which can realize the extension and retraction function of the adjustment bushing 12. The front bumper body 5 is made of plastic and has the characteristic of elastic deformation, thereby achieving the purpose of adjusting the pitch angle of the ADAS module 2. Since the thread rotation is continuous, the pitch angle can be adjusted to 0 degrees, so that the performance of the ADAS module 2 reaches the optimal state.

[0153] After adjustment, use an M6 bolt 3 to pass through the through hole 101 in the middle of the adjusting bushing 12 to fasten the front bumper to the front anti-collision beam 4, so as to prevent the ADAS module 2 from experiencing large detection fluctuations due to vehicle vibration during driving.

[0154] In addition, the outward deformation of the front bumper body 5 of the present invention mainly relies on the internal support of the adjustment structure 1; while the inward deformation of the front bumper body 5 is achieved by the bolts 3 on the adjustment structure 1 that are connected to the front anti-collision beam 4.

[0155] The adjustment structure 1 disclosed in this invention adopts the injection molding process, which has the advantages of high manufacturability, high production efficiency, light weight and low cost; the adjustment structure 1 of this invention utilizes threaded adjustment to achieve continuity and high adjustment accuracy.

[0156] Based on the above, it can be seen that there are two adjustment methods of the present invention: one is used in conjunction with bolts, and the other is achieved by adjusting the extension and contraction of the structure itself. However, the essence is to adjust the extension and contraction of the structure itself, thereby causing deformation of the local structure of the front bumper body, and thus linking the change of the orientation of the ADAS module in the related area.

[0157] Obviously, the specific implementation of this invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of this invention are within the protection scope of this invention.

Claims

1. An adjustment structure for a front bumper ADAS module, characterized in that, Includes a mounting bracket connected to the front bumper body, wherein the mounting bracket is provided with an adjusting bushing; The adjusting bushing and the fixed bracket can move relative to each other; the adjusting structure can cause the front bumper body to deform. The adjusting bushing is connected to the fixed bracket via a connecting component; the connecting component includes an assembly slot on the fixed bracket; the assembly slot has an internal thread; the adjusting bushing has an external thread; the adjusting bushing and the fixed bracket are connected by threads. The locking end plate in the fixed card holder is provided with a first tooth set; the first tooth set includes a plurality of first locking teeth disposed on the locking end plate; The adjusting bushing includes a bushing body; the bushing body is provided with an adjusting groove; The assembly through groove is a stepped groove; the assembly through groove includes a main through groove and an insertion through groove; the inner diameter of the main through groove is larger than the inner diameter of the insertion through groove; the bushing body includes a bushing base, and the end of the bushing base is provided with a protruding ring rib; the protruding ring rib in the bushing body is inserted into the insertion through groove of the assembly through groove.

2. The adjustment structure for a front bumper ADAS module according to claim 1, characterized in that, The fixed mounting bracket includes a base body, with a fixed end plate on one side and a snap-fit ​​end plate on the other side; the fixed end plate and the snap-fit ​​end plate are spaced apart.

3. The adjustment structure for a front bumper ADAS module according to claim 2, characterized in that, The fixed end plate is an annular plate, and the snap-fit ​​end plate is a straight plate; the horizontal projection of the fixed card seat is I-shaped.

4. A front bumper assembly, characterized in that, Includes a front bumper body, wherein the front bumper body is provided with an ADAS module and an adjustment structure for the front bumper ADAS module as described in any one of claims 1-3; The front bumper ADAS module is pressed against the vehicle body using an adjustment structure; The front bumper body is provided with an assembly groove; the front bumper body is provided with a second set of teeth near the edge of the assembly groove; the second set of teeth includes a second snap-fit ​​tooth; the first set of teeth and the second set of teeth can mesh with each other.

5. A front bumper assembly according to claim 4, characterized in that, At least one of the aforementioned front-side ADAS modules has an adjustment structure positioned directly below the ADAS module to be adjusted.

6. A front bumper assembly according to claim 4, characterized in that, The front ADAS module can be connected to the vehicle body via fasteners using an adjustment structure.

Images