Passenger car laser radar installation structure

Abstract

The invention belongs to the technical field of automobiles, and particularly relates to a passenger car laser radar mounting structure which comprises a decorative plate, a convex rib extending inwards is arranged on the decorative plate, an inward groove is formed in a shell of a laser radar, and a layer of sealing foam is adhered to the outer surface of the convex rib. According to the technical scheme, the positioning structure design of the plaque and the laser radar is optimized, so that the gap matching quality is improved; through seams formed by gaps between parts are avoided, and wind noise during driving is avoided; rainwater is prevented from entering the interior from a gap between the decoration plate and the radar, and condensation of the radar in a high-humidity environment is avoided. The technical scheme has the advantages of simplicity in manufacturing, good reliability, simple structure and the like.

Description

Technical Field

[0001] The invention belongs to the field of automobile technology, and in particular relates to a laser radar installation structure for a passenger car. Background Art

[0002] At present, the electrification, intelligence, networking and sharing of automobiles are accelerating the arrival of the next generation of automobile industry changes. Intelligent networked vehicles have become an important strategic direction for the development of the global automobile industry. In particular, the development direction represented by intelligent driving has spawned the large-scale application of LiDAR in the industry.

[0003] Most car companies place the LiDAR on the front roof and integrate it with the roof trim. This arrangement greatly improves the detection range of the radar and provides adequate safety for the vehicle. At the same time, the special working conditions at the roof position put forward higher integration requirements for the wind noise and sealing of the radar / trim system, such as driving wind noise, radar condensation and other issues.

[0004] The laser radar 02 and the decorative panel 01 are nested and installed together, and then the whole is installed on the vehicle body. Figure 1 As shown, the position here is high, the field of vision is good, and the laser radar 02 can obtain the best detection conditions. At the same time, wind noise is relatively easy to be generated here, and the driver and passengers are close to each other, so the perception is strong; the erosion of rain is strong, the heat dissipation condition of the laser radar 02 is poor, and condensation is easy to affect the detection function.

[0005] At present, the installation matching structure of radar and trim panels of most models, such as Figure 2 As shown in the cross section, the decorative plate 01 is opened, and the laser radar 02 is installed from the back, and its mask and the opening of the decorative plate form a gap matching. However, the above installation method has the following disadvantages:

[0006] 1. The uniformity and consistency of the gap between the trim panel and the laser radar are poor, which affects the perceived quality of the appearance.

[0007] 2. The airflow during driving can pass through the gap between the trim and the lidar, sometimes causing wind noise. This location is close to the driver and may be heard inside the car.

[0008] 3. Rainwater enters between the trim panel and the LiDAR. The temperature of the LiDAR is high when it is working, and a high temperature and high humidity environment is formed locally, causing condensation (water vapor) inside the LiDAR, affecting detection perception. Summary of the invention

[0009] The purpose of the present invention is to provide a passenger car laser radar installation structure to solve the following technical problems:

[0010] 1. Improve the gap matching quality between the trim panel and the LiDAR from a structural perspective to reduce process difficulty.

[0011] 2. Avoid the formation of penetration gaps between the trim and the laser radar, which may cause wind noise problems.

[0012] 3. Reduce the amount of rainwater that enters the interior from between the trim panel and the radar, thereby preventing condensation from forming on the radar.

[0013] To achieve the above objectives, this application is implemented through the following technical solutions:

[0014] A laser radar installation structure for a passenger car includes a decorative plate, on which a convex rib extending inward is arranged, on a shell of the laser radar is an inward groove arranged, and on the outer surface of the convex rib a layer of sealing foam is adhered.

[0015] Furthermore, the convex rib is arranged near the middle of the bent portion of the decorative plate, and the length of the convex rib is greater than the thickness of the decorative plate.

[0016] Furthermore, the convex rib is not perpendicular to the inner surface of the decorative plate, and the cross section of the convex rib is square, and the thickness of the convex rib at the connection with the decorative plate is greater than the thickness of the end of the convex rib.

[0017] Furthermore, the depth of the upper side wall of the groove on the outer shell of the laser radar is smaller than the depth of the lower side wall, and the width of the groove opening is larger than the width of the bottom of the groove.

[0018] Furthermore, the sealing foam is made of silicone foam.

[0019] Furthermore, the sealing foam is interference fit with the groove.

[0020] Furthermore, the thickness of the sealing foam on the lower surface of the rib is greater than the thickness of the sealing foam on the upper surface of the rib.

[0021] The beneficial effects of the present invention are:

[0022] This technical solution improves the quality of gap matching by optimizing the positioning structure design of the trim panel and the laser radar; avoids the formation of penetration seams between the gaps between parts to avoid wind noise during driving; blocks rainwater from entering the interior through the gap between the trim panel and the radar to avoid condensation on the radar in a high-humidity environment; this technical solution has the advantages of simple manufacturing, good reliability, and simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the current laser radar installation location.

[0024] Figure 2 for Figure 1 AA section view.

[0025] Figure 3 This is a schematic diagram of the installation structure of the passenger car laser radar of the present invention.

[0026] Description of reference numerals:

[0027] 01. Decorative panel; 02. Laser radar; 1. Decorative panel; 2. Raised rib; 3. Laser radar; 4. Groove; 5. Sealing foam. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be construed as limiting the technical solution of the present invention.

[0029] like Figure 3 As shown, the present application provides a passenger car laser radar installation structure, including a decorative panel 1. The decorative panel of the present application is a conventional decorative panel of existing vehicles. The decorative panels of different car companies and different models may be the same or different, and the selection is made based on actual conditions.

[0030] The decorative plate 1 is provided with a convex rib 2 extending inward. In this embodiment, the convex rib 2 is directly injection molded with the decorative plate 1. The convex rib 2 is arranged near the middle of the bent part of the decorative plate 1, and the length of the convex rib 2 is greater than the thickness of the decorative plate 1. In this application, the convex rib 2 is not perpendicular to the inner surface of the decorative plate 1, and the cross section of the convex rib 2 is square. The thickness of the connection between the convex rib 2 and the decorative plate 1 is greater than the thickness of the end of the convex rib. This structure can improve the fit between the sealing foam and the groove 4 on the outer shell of the laser radar 3.

[0031] An inward groove 4 is provided on the outer shell of the laser radar 3, and a layer of sealing foam 5 is pasted on the outer surface of the convex rib 2. The depth of the upper side wall of the groove 4 on the outer shell of the laser radar 3 is less than the depth of the lower side wall, and the width of the groove opening is greater than the width of the groove bottom.

[0032] The convex ribs directly injection-molded on the decorative panel are assembled with the groove features on the laser radar to form a mutual positioning constraint. Because the positioning distance here is very close to the external gap matching, the dimension chain is very short and the matching accuracy is very high, which can effectively ensure the matching quality of the gap.

[0033] In the present application, the sealing foam is made of silicone foam, and the sealing foam is interference fit with the groove. The sealing foam of the present application is interference fit with the groove of the laser radar, which can prevent the driving airflow from passing through the gap to form wind noise, and also prevent rain or high-pressure water flow from washing the car from passing through the gap to enter the inside to form radar condensation.

[0034] In the present application, the thickness of the sealing foam on the lower surface of the rib is greater than the thickness of the sealing foam on the upper surface of the rib. This sealing foam structure can further overcome the pressure on the sealing foam on the lower surface of the rib, thereby avoiding the gap between the sealing foam and the groove.

[0035] The above are preferred implementation modes of the present invention. The above show and describe the basic principles of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A passenger car laser radar installation structure, characterized in that: It includes a decorative plate, on which a convex rib extending inward is arranged, on the outer shell of the laser radar is an inward groove, and a layer of sealing foam is pasted on the outer surface of the convex rib.

2. The passenger car laser radar installation structure according to claim 1, characterized in that: The convex rib is arranged near the middle of the bent portion of the decorative plate, and the length of the convex rib is greater than the thickness of the decorative plate.

3. The passenger car laser radar installation structure according to claim 2, characterized in that: The convex rib is not perpendicular to the inner surface of the decorative plate, and the cross section of the convex rib is square. The thickness of the connection between the convex rib and the decorative plate is greater than the thickness of the end of the convex rib.

4. The passenger car laser radar installation structure according to claim 1, characterized in that: The depth of the upper side wall of the groove on the shell of the laser radar is smaller than the depth of the lower side wall, and the width of the groove opening is larger than the width of the groove bottom.

5. The passenger car laser radar installation structure according to claim 1, characterized in that: The sealing foam is made of silicone foam.

6. The passenger car laser radar installation structure according to claim 1, characterized in that: The sealing foam is interference fit with the groove.

7. The passenger car laser radar installation structure according to claim 1, characterized in that: The thickness of the sealing foam on the lower surface of the convex rib is greater than the thickness of the sealing foam on the upper surface of the convex rib.

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