A composite mounting structure for a vehicle radar and an injection mold

Abstract

The application relates to the technical field of automobile radar installation, and particularly discloses a composite installation structure of a vehicle radar and an injection mold, wherein the composite installation structure of the vehicle radar comprises a radar, a radar installation outer plate, a spoiler outer plate, a radar fixing plate and a clamping function step; the side wall of the spoiler outer plate is provided with a through hole; the clamping function step is arranged on the side of the through hole far from the outside of the vehicle; the radar installation outer plate is inserted into the through hole from the outside of the vehicle and is clamped with the clamping function step; the radar installation outer plate is provided with a first cavity; the signal sensing end of the radar is inserted into the first cavity close to the outside of the vehicle; the outside of the radar is abutted against the inner side wall of the first cavity; the radar fixing plate is pressed at the end of the radar far from the outside of the vehicle; and the radar fixing plate is butted against the spoiler outer plate and presses the radar in the axial direction of the through hole. The application is convenient for installing the radar in the narrow space in the spoiler outer plate, improves the protection of the radar and the sensing precision of the radar.

Description

Technical Field

[0001] This invention relates to the field of automotive radar installation technology, specifically a composite installation structure for automotive radar and an injection mold. Background Technology

[0002] With the increasing intelligence of new energy vehicles, intelligent assisted driving has become one of the important labels of new energy vehicles. Radar is one of the core sensors of the perception layer of intelligent advanced driver assistance systems (ADAS) and autonomous vehicles (AV). In order to better realize L3 and above autonomous driving, more accurate and reliable perception capabilities are required. Therefore, the number of radars installed on the vehicle body must also be increased. Traditional models only place radars around the bumper. Due to space and functional limitations, it is not possible to achieve all-round detection. The detection height and range are very limited. Therefore, in order to realize mid-to-high-level intelligent driving functions, a three-in-one radar arrangement is needed to increase the number of radars, increase the detection distance and surrounding space, while not affecting the appearance and other functions of the vehicle. Therefore, it is necessary to install them in narrow spaces. For the sake of aesthetics and radar perception capabilities, existing cars often install radars in narrow spaces inside the outer panel of the spoiler. Summary of the Invention

[0003] The purpose of this invention is to provide a composite mounting structure for automotive radar, which solves the problem of inconvenient installation of radar in the narrow space inside the outer panel of the spoiler, and improves the protection of the radar and the radar's sensing accuracy.

[0004] The objective of this invention can be achieved through the following technical solutions: This invention provides a composite mounting structure for a vehicle radar, including a radar, a radar mounting outer plate, a spoiler outer plate, a radar fixing plate, and a snap-fit ​​functional step. The spoiler outer plate has a through hole on its side wall. The snap-fit ​​functional step is located on the side of the through hole away from the outside of the vehicle. The radar mounting outer plate is inserted into the through hole from the outside of the vehicle and snaps into the snap-fit ​​functional step. The radar mounting outer plate has a first cavity. The radar's signal sensing end is inserted into the first cavity on the side near the outside of the vehicle, and the outer side of the radar abuts against the inner side wall of the first cavity. The radar fixing plate presses against the end of the radar away from the outside of the vehicle. The radar fixing plate is connected to the spoiler outer plate and axially presses the radar through the through hole.

[0005] Furthermore, the radar mounting outer plate has a groove with its opening facing the inside of the vehicle and used to abut against the radar mounting outer plate. The side wall of the groove away from the opening has a radar mounting hole. Multiple limiting ribs are provided in the groove and are arranged circumferentially outside the radar mounting hole. The inner side wall of the first cavity includes the hole wall of the radar mounting hole and the side wall of the limiting ribs near the radar mounting hole. A latch is provided on the side of the limiting ribs away from the radar mounting hole. The radar mounting outer plate is engaged with the locking step through the latch.

[0006] Furthermore, a limiting boss is provided on one end face of the groove opening.

[0007] Furthermore, a positioning post is provided in the groove facing the opening side. The positioning post is located between the limiting rib and the latch. A positioning hole is provided on the side of the radar fixing plate near the through hole. The positioning post is connected to the positioning hole.

[0008] Furthermore, the end face of the groove on the opening side and the end face of the through hole on the outer side are both set as arc-shaped surfaces, and the curvature of the arc surfaces of the two are matched.

[0009] Furthermore, the locking function step has multiple stepped surfaces, and there are multiple locking tongues, with the locking surfaces of the multiple locking tongues abutting against the multiple stepped surfaces respectively.

[0010] Furthermore, the outer panel of the spoiler has an upper bend section, a middle bend section and a lower bend section connected in sequence. There is a first receiving groove between the lower surface of the upper bend section and the upper surface of the lower bend section. The first receiving groove extends toward the inside of the vehicle and the groove width increases along the extension direction. The middle bend section has a second receiving groove. The second receiving groove extends toward the outside of the vehicle and the groove width increases along the extension direction.

[0011] Furthermore, the outer wall of the second receiving groove is an arc-shaped concave surface that curves inward toward the inside of the vehicle.

[0012] Furthermore, a tie rod is provided in the first receiving groove, and a threaded post is provided on the tie rod. The radar fixing pressure plate is screwed to the threaded post to connect with the outer plate of the spoiler.

[0013] Another aspect of the present invention provides an injection mold, including a fixed mold, a moving mold, a slider, and an inclined guide post. The slider is movably inserted into the moving mold, and the fixed mold is connected to the slider. The fixed mold, the moving mold, and the slider together form a molding cavity for molding a radar mounting outer plate of any of the above-described schemes. The upper surface of the slider has a right-angled groove, and the inclined guide post is connected to the lower part of the fixed mold and slidably connected to the right-angled groove to guide the slider to slide away from the molding cavity.

[0014] The beneficial effects of this invention are: This invention enhances the protection of the radar sensor by incorporating a radar mounting plate. The outer mounting plate and its stepped snap-fit ​​mechanism facilitate rapid installation. Through-holes allow the radar to extend beyond the spoiler's outer panel, improving its sensing capabilities. The installation method within these through-holes does not compromise the spoiler's overall aesthetics. A radar fixing plate securely presses the radar into the first cavity, improving the vehicle's sensing capabilities compared to vehicles without this composite structure. Compared to vehicles with rear-mounted radar, this composite structure offers superior collision protection, better radar protection, and reduced maintenance costs. Furthermore, it occupies less space in the spoiler's inward-facing area, making installation easier.

[0015] This invention mounts the radar by inserting it into the outer side of the spoiler's outer panel. This not only extends the narrow space behind the spoiler's outer panel, solving the problem of radar installation in confined space, but also extends the radar sensing end outwards, increasing the radar's sensing distance and range, and reducing obstructions. At the same time, the outer surface of the radar mounting panel can be streamlined to ensure a seamless fit with the spoiler's outer panel and other connecting components, resulting in a more consistent rear appearance and a more aesthetically pleasing overall look.

[0016] The vehicle radar composite mounting structure of the present invention adopts a separate radar mounting outer plate, spoiler outer plate and radar fixing pressure plate to mount the radar, which makes the manufacturing and installation of the composite mounting structure easier and saves production costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an exploded view of a vehicle radar composite mounting structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the appearance of a vehicle radar composite mounting structure according to an embodiment of the present invention; Figure 3 This is a three-dimensional schematic diagram of the radar mounting outer plate in an embodiment of the present invention; Figure 4 This is a front view of the opening of the radar mounting outer plate in an embodiment of the present invention; Figure 5 This is a schematic diagram of an injection mold according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the distribution of multiple sliders in an embodiment of the present invention; In the diagram: 1. Radar mounting outer plate; 2. Radar mounting hole; 3. Limiting rib; 4. Functional mounting platform; 5. Limiting boss; 6. Tongue; 7. Positioning post; 8. Spoiler outer plate; 9. Radar; 10. Radar fixing plate; 11. Through hole; 12. Threaded post; 13. Snap-fit ​​functional step; 14. First cavity; 15. Groove; 16. Opening; 17. Moving mold; 18. Fixed mold; 19. Angled guide post; 20. Right slanted groove; 21. Slider; 22. First receiving groove; 23. Second receiving groove; 24. Tie rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figure 1 As shown, this invention discloses a composite mounting structure for automotive radar, specifically designed for radar 9 assembly in the rear spoiler area of ​​a vehicle. It is particularly tailored to the installation requirements of radar 9 in the confined space of the upper rear of the vehicle. The overall structure comprises five core components: radar 9, radar mounting outer plate 1, spoiler outer plate 8, radar fixing plate 10, and snap-fit ​​functional step 13. A through-hole 11 is formed at the center of the side wall of the spoiler outer plate 8, providing the radar 9 with an external detection channel and assembly reference position. The snap-fit ​​functional step 13 is integrally formed on the side of the through-hole 11 furthest from the vehicle exterior, specifically at the inner end face of the through-hole 11 closest to the vehicle interior, serving as a limiting and snap-fit ​​reference structure for the radar mounting outer plate 1. The radar mounting outer plate 1 is precisely inserted into the through-hole 11 from the outside of the vehicle, and its inner end face precisely snaps into and limits the snap-fit ​​functional step 13, achieving initial radial and axial positioning and fixing, preventing assembly misalignment and loosening. The radar mounting outer plate 1 has an integrally formed through-hole first cavity 14. The cavity size is precisely matched with the shape of the radar 9. The signal sensing end (detector head end) of the radar 9 is inserted into the first cavity 14 facing outwards from the vehicle. The outer circumferential wall of the radar 9 completely abuts against and fits against the inner side wall of the first cavity 14, realizing omnidirectional circumferential limitation of the radar 9. This effectively prevents problems such as circumferential rotation, offset, and jitter during the operation of the radar 9, ensuring the detection accuracy and stability of the radar 9. The radar fixing plate 10 is pressed and fitted against the rear end face of the radar 9 away from the vehicle, realizing axial limitation of the radar 9 at the rear. The outer edge of the radar fixing plate 10 is precisely aligned and locked with the inner surface of the spoiler outer plate 8. The radar 9 is fully pressed and fixed in the axial direction of the through hole 11, constructing a three-dimensional fixed structure of "outer side snap-fit ​​positioning, inner side pressure plate pressing, and circumferential cavity limitation", which comprehensively ensures the stability and reliability of the radar 9 assembly.

[0021] The core application scenario for this vehicle radar 9 composite mounting structure is the rear upper spoiler mounting area. This area is one of the key installation locations for the vehicle's millimeter-wave radar 9, parking radar 9, and driver assistance perception radar 9. However, due to the overall vehicle body shape, tailgate structure, interior layout, and spoiler integrated design, the internal structure of the rear upper rear of the vehicle is extremely compact, with limited available installation space. Traditional integrated radar 9 brackets and rear-mounted fixing brackets are unsuitable for this scenario due to their large size, high assembly space requirements, and inconvenient disassembly. Furthermore, the reserved radar 9 installation space inside the spoiler outer panel 8 is limited in size and irregular in structure, making it difficult for conventional radar 9 mounting structures to achieve precise assembly and reliable fixation. This easily leads to malfunctions such as radar 9 obstruction, detection angle deviation, insecure fixation, abnormal noise, and loosening. Based on these industry pain points, this structure adopts a composite installation logic of front insertion, outer assembly, and inner clamping, fully adapting to the assembly requirements in confined spaces. The specific installation process and working principle are as follows: During assembly, the radar mounting plate 1 is first inserted into the pre-set through hole 11 of the spoiler plate 8 from the outside of the vehicle body. The snap-fit ​​function step 13 formed on the inner side achieves quick limiting snap-fit, completing the pre-fixed positioning of the radar mounting plate 1. This eliminates the need for operation from inside the vehicle body, avoiding the problems of limited interior space and inconvenient operation. Then, the signal sensing end of the radar 9, that is, the detection end of the radar 9 head, is precisely inserted into the first cavity 14 of the radar mounting plate 1. The regular structure of the inner side wall of the first cavity 14 achieves precise circumferential limiting of the radar 9, ensuring that the detection center of the radar 9 is aligned with the vehicle body reference and eliminating detection angle deviation. Finally, the radar fixing plate 10 is pressed tightly against the rear end face of the radar 9 and locked and fixed to the inner side of the spoiler plate 8, firmly pressing the radar 9 body from the axial direction, completely restricting the radar 9 from moving forward and backward or shifting circumferentially. The entire installation process requires no complicated tooling assistance and can be quickly completed by a single person. It is perfectly suited for the installation conditions of the rear spoiler in a narrow space. At the same time, the outer panel 1 of the radar mounting plate forms an all-round wrapping protection for the radar 9, realizing full coverage of anti-collision protection in the circumferential, radial and axial directions, which greatly improves the radar 9's impact and vibration resistance during driving.

[0022] This composite mounting structure, through its innovative split-type snap-fit ​​and axial compression composite structure, overcomes many limitations of traditional radar 9 mounting structures, possessing multiple core advantages such as superior sensing performance, strong protection, small space occupation, good appearance consistency, convenient assembly, and controllable cost. Specifically, the quick-connect structure between the radar mounting outer plate 1 and the snap-fit ​​functional step 13 eliminates the complex assembly mode of traditional bolt pre-installation and welding fixation, enabling rapid alignment and one-click snap-fit ​​pre-fixation of the radar mounting outer plate 1, significantly improving assembly line efficiency and adapting to automated mass production lines in automotive manufacturing. The pre-set through-hole 11 on the spoiler outer plate 8 allows the radar 9 detection end to extend directly to the outside of the spoiler outer plate 8, extending the installation space and overcoming the obstruction limitations of traditional embedded radar 9 mounting structures. This completely eliminates the obstruction and interference of the spoiler shell and vehicle body structure on the radar 9 detection signal, effectively expanding the radar 9 detection angle, improving detection distance and accuracy, and significantly enhancing the vehicle's environmental perception capabilities for assisted driving, reversing warning, and rear collision warning. Meanwhile, the embedded installation method of the through hole 11 will not damage the overall appearance of the spoiler. The opening position is precisely matched with the shape of the radar mounting plate 1, which can achieve seamless fitting and assembly, and preserve the integrity of the vehicle body appearance to the greatest extent.

[0023] Compared to existing vehicles without a composite installation structure, this structure represents a comprehensive upgrade across four dimensions: assembly method, fixing logic, protection system, and sensing performance. Traditional vehicles typically use a rear-mounted bracket for the radar 9, embedding it within the vehicle. This not only occupies significant interior space but also requires disassembling the vehicle's interior trim and spoiler structure for assembly, disassembly, and maintenance, resulting in extremely high labor and costs. Furthermore, the radar 9 is completely embedded within the housing, leading to severe signal obstruction and poor sensing accuracy. In contrast, this composite structure uses an external front-mounted assembly, significantly reducing the space occupied by the spoiler facing the interior. No additional space is needed for assembly and maintenance operations within the vehicle, effectively adapting to the needs of compact vehicle body designs. Simultaneously, the split composite protection structure fully encloses the radar 9, effectively protecting it from damage caused by gravel impacts, airflow, minor scratches, and vehicle vibrations during driving. Compared to conventional rear-mounted radar 9 structures, the radar 9's protective performance is significantly improved, effectively reducing the probability of radar 9 damage, failure, and malfunctions, and substantially lowering future vehicle maintenance costs.

[0024] In addition, this structure, through the external insertion assembly design of the radar mounting outer plate 1, effectively extends the narrow installation space behind the spoiler outer plate 8, solving the core problems of insufficient installation space, assembly interference, and difficulty in fixing the radar 9 in the rear spoiler area of ​​the industry. The radar 9 detection end can be precisely extended outward through the first cavity 14, away from the area obstructed by the body shell, further optimizing the radar 9 detection field of view, reducing the obstruction and attenuation of millimeter wave and ultrasonic signals by the body structure and shell components, effectively improving the radar 9 sensing distance, detection range, and recognition accuracy, and ensuring the stable operation of the vehicle's rear obstacle recognition, distance monitoring, and collision warning functions. At the same time, the outer surface of the radar mounting outer plate 1 can be designed as an integrated streamlined curved surface structure according to the shape of the body spoiler, which can perfectly fit the curved surface of the spoiler outer plate 8 and the shape of the rear of the body. After assembly, there are no abrupt protrusions or gaps, and the overall rear appearance of the vehicle is extremely consistent. While ensuring the installation performance and protection performance of the radar 9, it does not affect the aesthetics of the vehicle appearance at all, taking into account both functionality and appearance refinement, perfectly adapting to the refined appearance design requirements of passenger vehicles.

[0025] In some preferred embodiments, the composite mounting structure of the vehicle radar 9 adopts a separate modular design. It is assembled from three main components: an independent radar mounting outer plate 1, a spoiler outer plate 8, and a radar fixing plate 10, thus fixing the radar 9 and eliminating the need for the traditional integrated bracket structure. The advantages of the separate modular structure are extremely prominent: First, each component has a simple structure and regular shape, resulting in low injection molding difficulty and a high yield rate, significantly reducing mold development and manufacturing costs. Second, each component can be mass-produced, inspected, and replaced individually. If a single component is damaged during vehicle use, there is no need to replace the entire component; only the damaged part needs to be replaced, significantly reducing subsequent maintenance and spare parts inventory costs. Third, the separate assembly has a high tolerance for errors, adapting to vehicle body manufacturing tolerances and effectively solving the problems of assembly interference, poor fit, and assembly and manufacturing difficulties associated with integrated structures, further improving mass production assembly efficiency and structural adaptability.

[0026] like Figure 3As shown, in some optimized embodiments, a groove is formed on the inner side of the radar mounting outer plate 1, and the opening 16 of the groove is set towards the inside of the vehicle. The inner end face of the groove is used to fit and abut against the inner surface of the spoiler outer plate 8 to achieve assembly reference fitting and positioning. A radar mounting hole 2 is formed through the center of the outer wall of the groove away from the opening 16. The radar mounting hole 2 is coaxially set with the outer first cavity 14 to ensure the concentricity of the radar 9 assembly. Multiple limiting ribs 3 are evenly arranged around the radar mounting hole 2 inside the groove. The multiple limiting ribs 3 are arranged in a circumferential ring array, which is regular, uniform and symmetrical in force. The inner limiting wall of the first cavity 14 is composed of the hole wall of the radar mounting hole 2 and the side wall of the limiting rib 3 near the radar mounting hole 2. The two structures cooperate to achieve all-round fitting and limiting of the outer ring of the radar 9, effectively restricting the circumferential offset, rotation and radial movement of the radar 9. The limiting rib 3 has an integrally formed latch 6 structure on its outer side away from the radar mounting hole 2. The radar mounting outer plate 1 is precisely engaged and fixed with the inner side of the spoiler outer plate 8 by multiple sets of circumferentially arranged latches 6, achieving boltless and rapid pre-fixation. This structure adopts a front-insertion assembly logic. The radar mounting outer plate 1 is directly inserted into the radar mounting hole 2 from the outside of the vehicle body, facing the through hole 11. It is locked by the symmetrically arranged latches 6 and the engagement steps 13, making assembly convenient and the fixation firm. At the same time, the limiting rib 3 of the circumferential array precisely fits and limits the outer wall of the radar 9 body, which can adaptively correct the assembly tolerance, accurately ensure the concentricity and levelness of the radar 9 after assembly, and eliminate problems such as detection angle deviation and signal failure caused by the tilt or offset of the radar 9, ensuring the long-term stable operation of the radar 9.

[0027] In some optimized embodiments, such as Figure 4 As shown, multiple sets of limiting bosses 5 are evenly arranged on the annular end face of the groove near the opening 16. The limiting bosses 5 are small columnar structures evenly distributed. The core function of the limiting bosses 5 is to precisely control the assembly gap and optimize the fitting accuracy. By replacing the traditional surface contact with point contact, the contact area between the end face of the groove and the outer side of the spoiler outer plate 8 is greatly reduced. This can effectively avoid problems such as uneven fitting, end face warping, and assembly jamming caused by errors in sheet metal injection molding and cumulative errors in body assembly, greatly reducing the assembly difficulty and improving the assembly smoothness and positioning accuracy of the radar mounting outer plate 1. At the same time, the limiting bosses 5 can achieve uniform support, improve the uniformity of the gap at the rear end face of the assembly, avoid local surface contact compression stress concentration, effectively prevent structural deformation and cracking caused by long-term vibration, and further improve structural stability and service life.

[0028] In some optimized embodiments, a positioning post 7 is fixedly installed in the area facing the opening 16 inside the groove, in the gap between the limiting rib plate 3 and the latch 6. The positioning post 7 adopts a cross-shaped positioning post 7 or a cylindrical positioning post 7 structure, and has the dual functions of guiding and positioning. The radar fixing plate 10 has a matching positioning hole at the corresponding position near the through hole 11. During assembly, the positioning post 7 and the positioning hole are precisely aligned and nested, realizing the rapid alignment guidance and precise positioning of the radar fixing plate 10. At the same time, the radar fixing plate 10 is locked and fixed by matching screw posts. The positioning post 7 can effectively limit the assembly offset of the plate, ensure that the plate is pressed evenly, avoid local false pressure or pressure deviation, ensure that the rear of the radar 9 is evenly stressed, and comprehensively improve the stability of the radar 9, eliminating abnormal noise and loosening faults caused by vehicle vibration from the source.

[0029] In some optimized embodiments, such as Figure 3 As shown, the annular end face on one side of the groove opening 16 and the outer end face on the outer side of the through hole 11 are both set as arc-shaped curved surface structures. The curvature of the arc-shaped curved surface is perfectly matched with the curvature of the arc-shaped concave surface on the outer side of the spoiler outer plate 8, which can achieve seamless fitting and assembly of the curved surfaces. This structural design has two core advantages: First, in terms of appearance, the arc-shaped curved surface perfectly adapts to the streamlined shape of the vehicle spoiler. After assembly, the curved surface transitions smoothly, without steps or gaps, resulting in a strong consistency in the overall vehicle appearance and meeting the requirements of refined exterior design for passenger vehicles. Second, in terms of safety protection, after assembly, the arc-shaped curved surface is embedded inside the arc-shaped concave cavity of the spoiler outer plate 8, forming a flexible buffer arc cavity. When a minor rear-end collision or scrape occurs at the rear of the vehicle, the arc-shaped curved surface can preferentially undergo controllable crushing deformation, effectively absorbing the kinetic energy of the collision impact, buffering the external impact force, and preventing the rigid impact from being directly transmitted to the internal radar 9 body. This significantly reduces the probability of the radar 9 being squeezed or damaged by impact, effectively reducing vehicle maintenance costs and improving the impact protection capability of the radar 9 structure.

[0030] In some optimized embodiments, such as Figure 1 As shown, the snap-fit ​​functional step 13 is configured as a multi-level stepped surface structure, and the snap-fit ​​tongue 6 is configured as multiple sets of symmetrical structures corresponding to the stepped surface. The snap-fit ​​end faces of multiple snap-fit ​​tongues 6 respectively fit and abut against the multi-level stepped surface, forming a multi-point, multi-step interlocking and fixing structure. Compared with the traditional single-level snap-fit ​​structure, the combination of multi-level stepped surface and multiple sets of snap-fit ​​tongues 6 can achieve 360° circumferential fixation of the radar mounting outer plate 1 without dead angles, completely restricting circumferential rotation and radial offset, greatly improving the assembly stability and structural rigidity of the radar mounting outer plate 1, effectively resisting high-frequency vibration and airflow impact during driving, ensuring that the installation position of the radar 9 does not deform or shift for a long time, thereby continuously and stably ensuring the detection accuracy and sensing stability of the radar 9, and avoiding detection data drift and functional failure caused by structural loosening.

[0031] In some optimized embodiments, such as Figure 2 As shown, the outer spoiler panel 8 adopts a bent, integrated molding structure, specifically comprising three consecutively connected bent sections: an upper bent section, a middle bent section, and a lower bent section. These three sections are integrally injection molded, resulting in strong structural integrity and excellent rigidity. A first receiving groove 22 is formed between the lower surface of the upper bent section and the upper surface of the lower bent section. This first receiving groove 22 extends towards the interior of the vehicle body, and its width gradually increases along the direction of extension inside the vehicle, forming a gradually expanding groove structure, reserving sufficient space for assembly and deformation. A second receiving groove 23 is provided at the center of the middle bent section. This second receiving groove 23 extends towards the exterior of the vehicle, and its width gradually increases along the direction of extension outside the vehicle, adapting to the extension structure of the radar 9's detection end. The three-section bending structure significantly improves the overall structural strength of the spoiler outer panel 8 and the rear collision protection performance. When a rear-end collision or low-speed scrape occurs, the upper, middle, and lower bending sections can undergo orderly crushing deformation according to a preset path, absorbing the impact energy in stages, effectively buffering the impact force, and preventing the rigid structure from directly impacting the internal radar 9 and body components, thus comprehensively improving the rear collision protection performance. At the same time, the gradient-type receiving groove structure can effectively avoid assembly interference and adapt to the assembly requirements in confined spaces.

[0032] In some optimized embodiments, the outer wall of the second receiving groove 23 is configured as an arc-shaped concave structure facing inward towards the vehicle interior. This arc-shaped concave surface precisely matches the outer arc-shaped curved surface of the radar mounting outer plate 1, forming a double-layer arc-shaped buffer structure. This structure can further enhance the anti-collision buffering effect of the spoiler outer plate 8, forming a flexible protective area in the vertical direction at the rear of the vehicle. It effectively resists impacts in the vertical direction at the rear, the impact of flying gravel, and the impact of high-pressure airflow, protecting the internally installed radar 9 equipment from multiple dimensions, avoiding damage to the radar 9 from irregular impacts, and further improving the environmental adaptability and service life of the radar 9.

[0033] In some optimized embodiments, such as Figure 1 As shown, the first receiving groove 22 has multiple sets of reinforcing ribs 24 integrally formed inside. The ribs 24 are evenly arranged and of uniform thickness, which can effectively improve the overall rigidity of the outer plate 8 of the spoiler and prevent the shell from deforming and warping. A vertical threaded post 12 is fixedly set at the center of the rib 24. The threaded post 12 is integrally injection molded with the outer plate 8 of the spoiler, which has high strength and is not easy to slip off. The radar fixing plate 10 is connected to the threaded post 12 by matching bolts, which achieves rigid docking and fixing with the outer plate 8 of the spoiler. Relying on the reinforcing support of the ribs 24, the threaded post 12 is not easy to deform or fall off under force, which can ensure that the clamping force of the radar fixing plate 10 is uniform and stable for a long time, eliminating the problem of plate loosening and clamping failure, and continuously ensuring the assembly stability of the radar 9.

[0034] like Figure 5 , Figure 6As shown, this invention also simultaneously proposes an injection mold embodiment adapted to the above-mentioned radar mounting outer plate 1 molding, specifically for mass production molding of the radar mounting outer plate 1 of this structure, solving the problem that traditional molds cannot mold complex irregular structures such as the latch 6, limiting rib plate 3, and curved surfaces, achieving high-precision, high-efficiency, and high-yield mass production. The injection mold specifically includes a fixed mold 18, a moving mold 17, a slider 21, and an inclined guide post 19. The slider 21 is slidably assembled on a pre-set groove of the moving mold 17, enabling horizontal reciprocating sliding. The fixed mold 18 is assembled and fixed above the slider 21. The fixed mold 18, the moving mold 17, and the slider 21 cooperate to form a complete molding cavity. The shape and size of this molding cavity are completely consistent with the external structure of the radar mounting outer plate 1, allowing for one-time injection molding of a complete radar mounting outer plate 1 blank. The upper surface of the slider 21 is provided with a right oblique groove 20. The oblique guide post 19 is fixedly assembled at the lower end of the fixed mold 18, and the oblique guide post 19 and the right oblique groove 20 are slidably adapted. During the mold opening process, the slider 21 can be guided to slide horizontally away from the molding cavity by the tilting movement of the oblique guide post 19, so as to realize the automatic demolding of the latch 6 and the limiting structure, and completely solve the industry problem of difficult demolding of irregular undercut structure and easy damage to products.

[0035] The overall mold process is stable and efficient, and is suitable for automated mass production: After the mold injection filling, holding pressure and cooling are completed, it enters the mold opening stage. The fixed mold 18 moves upward with the injection molding machine template, and synchronously drives the inclined guide post 19 fixed at the bottom of the fixed mold 18 to move upward. The inclined guide post 19 slides relative to the right inclined groove 20 of the slider 21. The inclined plane guides the slider 21 to slide horizontally to the outside away from the molding cavity, so that the slider 21 can quickly separate from the product's latch 6 and undercut structure, realize the non-destructive automatic demolding of the irregular structure, and complete the overall molding and demolding of the radar mounting outer plate 1. No manual assistance or secondary mold repair is required throughout the process. The molded product has high precision, no tearing, and no deformation.

[0036] In a specific mass production mold embodiment, for the four tabs 6 undercut structures symmetrically arranged around the radar mounting outer plate 1, the mold adopts a combination molding structure of multiple sets of sliders 21 and inclined guide pillars 19. The multiple sets of sliders 21 specifically include four independent sliders, slider B1, slider B2, slider C, and slider A, which work together. Through the compound linkage of multiple sliders, the irregular undercut structures of the tabs 6 evenly distributed around the four sides are accurately molded, and synchronous demolding is achieved at the same time, avoiding product deformation caused by uneven force on one side during demolding. Among them, slider A serves as the main injection slider, responsible for the overall injection and filling of the mold product, ensuring that the melt fills the cavity evenly and eliminating molding defects such as material shortage, shrinkage marks, and bubbles. Slider B1 and slider B2 are symmetrically assembled on the left and right sides of the moving mold 17, corresponding to two inclined guide pillars X1 and X2. Slider C and slider A are symmetrically assembled on the front and rear sides of the moving mold 17, corresponding to two other sets of inclined guide pillars. The inclined guide pillars 19 are fixed to the bottom of the fixed mold 18 and move synchronously with the fixed mold 18. At the moment the mold opens, the fixed mold 18 moves upward, causing the inclined guide pillars X1 and X2 to slide along the right inclined groove 20, driving the sliders B1 and B2 to slide synchronously to the left and right sides for demolding. The direction of movement is shown by the arrows in the figure, quickly separating from the latch 6 structures on the left and right sides of the product. The other groups of sliders 21 and inclined guide pillars 19 work in the same way. Slider C is responsible for the forming and demolding of the remaining latch 6 structures. The synchronous linkage and cooperation of multiple sliders can achieve one-time non-destructive demolding of the four groups of latch 6 structures, with high forming accuracy and good product consistency, fully meeting the mass production needs of car manufacturers. The remaining limiting structures and arc structures can also achieve synchronous forming and demolding by relying on the corresponding slider 21 structure. The mold linkage logic is stable and reliable.

[0037] In some mold optimization embodiments, the structure of the mold slider 21 is precisely optimized to match the functional mounting platform 4 and the undercut structure of the latch 6 of the product. During molding, the functional mounting platform 4, the latch 6, and the limiting structure are synchronously integrated and molded without secondary processing or demolding. This greatly simplifies the mold structure, reduces the mold development cost, and improves the overall structural accuracy and integrity of the product, avoiding dimensional deviations caused by split molding.

[0038] In some simplified and optimized mold embodiments, the limiting rib plate 3 of the product has a regular shape, no undercuts, and no irregular dead corners. It eliminates the need for complex slider 21 and ejector block structures to assist in demolding, and can be directly formed through the mold-closing structure of the moving mold 17 and the fixed mold 18. Only a conventional ejector pin structure needs to be added to the bottom of the mold to achieve smooth ejection and demolding. This design significantly simplifies the overall mold structure, reduces mold processing difficulty and maintenance costs, and shortens the mold development cycle. At the same time, the conventional ejector pin demolding structure has strong stability and a low failure rate, effectively improving mass production cycle time and production efficiency, further reducing the unit production cost of the product, and possessing extremely high mass production practicality and economy.

[0039] In summary, the composite mounting structure for automotive radar 9 of this invention, through the coordinated use of a split modular design, a snap-fit ​​quick assembly structure, an arc-shaped buffer anti-collision structure, and a multi-level limiting and fixing structure, completely solves the technical problems of limited installation space, difficult assembly, unstable fixing, poor protection, low sensing accuracy, poor appearance consistency, and high maintenance costs associated with existing radar 9 installations in the rear spoiler area. This structure, while maximizing space occupancy within the vehicle and adapting to confined installation conditions, effectively improves the radar 9's detection and sensing performance and impact resistance, ensuring long-term stable operation. Simultaneously, the split structure is convenient to process, efficient to assemble, easy to maintain, and cost-effective. The mold forming process is mature and stable, with excellent mass production capabilities. It can be widely adapted to various rear spoiler radar 9 installation scenarios in fuel vehicles and new energy passenger vehicles, exhibiting high versatility and strong market adaptability, possessing extremely high practical and promotional value.

[0040] It should be noted that the terms "first," "second," etc., used in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A composite mounting structure for vehicle radar, characterized in that, The system includes a radar (9), a radar mounting plate (1), a spoiler plate (8), a radar fixing plate (10), and a snap-fit ​​functional step (13). The spoiler plate (8) has a through hole (11) on its side wall. The snap-fit ​​functional step (13) is located on the side of the through hole (11) away from the outside of the vehicle. The radar mounting plate (1) is inserted into the through hole (11) from the outside of the vehicle and snaps into the snap-fit ​​functional step (13). The radar mounting plate (1) has a first cavity (14). The signal sensing end of the radar (9) is inserted into the first cavity (14) on the side of the vehicle that is close to the outside of the vehicle. The outer side of the radar (9) abuts against the inner side wall of the first cavity (14). The radar fixing plate (10) presses on the end of the radar (9) away from the outside of the vehicle. The radar fixing plate (10) is connected to the spoiler plate (8) and axially presses the radar (9) in the through hole (11).

2. The vehicle radar composite mounting structure according to claim 1, characterized in that, The radar mounting plate (1) has a groove, the opening (16) of the groove faces the inside of the vehicle and is used to abut against the radar mounting plate (1). The side wall of the groove away from the opening (16) has a radar mounting hole (2). Multiple limiting ribs (3) are provided in the groove. The multiple limiting ribs (3) are arranged circumferentially outside the radar mounting hole (2). The inner side wall of the first cavity (14) includes the hole wall of the radar mounting hole (2) and the side wall of the limiting rib (3) close to the radar mounting hole (2). The side of the limiting rib (3) away from the radar mounting hole (2) is provided with a latch (6). The radar mounting plate (1) is engaged with the engaging functional step (13) through the latch (6).

3. The vehicle radar composite mounting structure according to claim 2, characterized in that, A limiting boss (5) is provided on one end face of the groove opening (16).

4. The vehicle radar composite mounting structure according to claim 2, characterized in that, A positioning post (7) is provided in the groove facing the opening (16). The positioning post (7) is located between the limiting rib plate (3) and the latch (6). The radar fixing plate (10) has a positioning hole on the side near the through hole (11). The positioning post (7) is connected to the positioning hole.

5. The vehicle radar composite mounting structure according to claim 2, characterized in that, The end face of the opening (16) of the groove and the end face of the outer side of the through hole (11) are both set as arc surfaces, and the curvature of the arc surfaces of the two are matched.

6. The vehicle radar composite mounting structure according to claim 2, characterized in that, The latching functional step (13) consists of multiple stepped surfaces, and the latch (6) consists of multiple latches, with the latching surfaces of the multiple latches (6) respectively abutting against the multiple stepped surfaces.

7. The vehicle radar composite mounting structure according to claim 1, characterized in that, The outer panel (8) of the spoiler has an upper bend section, a middle bend section and a lower bend section connected in sequence. A first receiving groove (22) is provided between the lower surface of the upper bend section and the upper surface of the lower bend section. The first receiving groove (22) extends towards the inside of the vehicle and the groove width increases along the extension direction. The middle bend section has a second receiving groove (23). The second receiving groove (23) extends towards the outside of the vehicle and the groove width increases along the extension direction.

8. The vehicle radar composite mounting structure according to claim 7, characterized in that, The outer wall of the second receiving groove (23) is an arc-shaped concave surface that is recessed inward toward the inside of the vehicle.

9. The vehicle radar composite mounting structure according to claim 7, characterized in that, The first receiving groove (22) is provided with a tie rod (24), and a threaded post (12) is provided on the tie rod (24). The radar fixing plate (10) is connected to the outer plate (8) of the spoiler by bolts to the threaded post (12).

10. An injection mold, characterized in that, The device includes a fixed mold (18), a moving mold (17), a slider (21), and an inclined guide post (19). The slider (21) is movably inserted into the moving mold (17), and the fixed mold (18) is connected to the slider (21). The fixed mold (18), the moving mold (17), and the slider (21) together form a molding cavity for molding the radar mounting outer plate (1) according to any one of claims 2-6. The upper surface of the slider (21) has a right inclined groove (20). The inclined guide post (19) is connected to the fixed mold (18) and slidably connected to the right inclined groove (20) to guide the slider (21) to slide away from the molding cavity.

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