Roof laser radar installation device, installation method and vehicle

Abstract

The invention discloses a car roof laser radar mounting device which comprises an inner protective plate and an outer protective plate, a first positioning mechanism for positioning a laser radar is arranged on the outer protective plate, a second positioning mechanism for positioning the laser radar is arranged on the inner protective plate, and a sealing mechanism is arranged between the outer protective plate and the laser radar. According to the car roof laser radar installation device, accurate installation of the laser radar on a car roof can be achieved, the sealing performance of the laser radar can be improved, and the problems of water leakage and wind noise are reduced. The invention further discloses a laser radar installation method and a vehicle.

Description

Technical Field

[0001] The present invention belongs to the field of automobile technology, and specifically, the present invention relates to a roof laser radar installation device, an installation method and a vehicle. Background Art

[0002] With the development and progress of science and technology, scientific and technological products are constantly improving all aspects of people's lives. Nowadays, many new technologies are applied in the automotive industry, and cars have become intelligent and networked. Now cars are constantly refreshing people's understanding of cars, such as automatic driving, automatic parking, remote control, and especially energy-saving cars, which have subverted people's understanding of cars. Among them, the application of automatic driving has to mention the application of LiDAR. At present, the conventional practice is to arrange LiDAR in the center of the front of the roof. Since the light-emitting surface of LiDAR cannot be blocked and must be streamlined (reduce wind resistance), the light-emitting surface of LiDAR cannot be well protected. The radar will face problems such as wind, rain, snow, sand and dust, and direct sunlight. Moreover, LiDAR is a precision component, and the position requirement is very precise.

[0003] If the structure is to be made more complicated to solve the above problems in order to meet the requirements of good sealing and high positioning accuracy, it will not be able to meet the production rhythm (high-precision positioning and assembly will inevitably take time).

[0004] Therefore, a good, reliable and easy-to-install structure is needed here to solve problems such as water leakage (water leakage will affect the accuracy of radar detection results, which has a great impact on driving safety), wind noise (wind noise at the roof is directly transmitted into the car, which is not conducive to the driving experience), long assembly time, and meet high precision requirements.

[0005] It is desirable to provide an improved roof-mounted LiDAR mounting device, particularly with regard to how to accurately mount the LiDAR on the roof of a car. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a roof laser radar installation device, the purpose of which is to achieve accurate installation of the laser radar on the roof of a car.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: a roof laser radar installation device, including an inner guard plate, an outer guard plate and a first positioning mechanism for positioning the laser radar, a second positioning mechanism for positioning the laser radar is arranged on the inner guard plate, and a sealing mechanism is arranged between the outer guard plate and the laser radar.

[0008] The sealing mechanism includes a sealing element. A guard plate window for accommodating the light-emitting surface of the laser radar is arranged on the outer guard plate. The sealing element is an annular structure arranged around the guard plate window. The sealing element is located between the outer guard plate and the laser radar.

[0009] The sealing element is a sealing ring, and a sawtooth in contact with the laser radar is arranged on the sealing element.

[0010] The outer guard plate is provided with a guard plate flange, the sealing element is sleeved on the guard plate flange, and the guard plate flange extends toward the inner side of the guard plate window.

[0011] The first positioning mechanism includes a positioning boss, and a plurality of positioning bosses are provided.

[0012] The second positioning mechanism includes a positioning block, a plurality of positioning blocks are provided, and a positioning hole for the positioning block to be embedded is provided on the laser radar.

[0013] The positioning block is a wedge-shaped structure.

[0014] The inner guard plate is provided with a fastening mechanism, which is configured to fix the laser radar on the inner guard plate by cooperating with bolts.

[0015] The present invention also provides a laser radar installation method, which adopts the roof laser radar installation device and includes the steps of:

[0016] S1. Assembling the roof laser radar installation device;

[0017] S2, positioning the laser radar on the roof laser radar mounting device;

[0018] S3. Fixedly connect the laser radar to the roof laser radar mounting device.

[0019] The present invention also provides a vehicle, comprising the roof laser radar installation device.

[0020] The roof laser radar installation device of the present invention can realize the accurate installation of the laser radar on the roof of the car, and can improve the sealing performance of the laser radar and reduce the occurrence of water leakage and wind noise problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the roof laser radar installation device of the present invention;

[0022] Figure 2 It is a schematic diagram of the sealing structure of the laser radar and the guard plate after assembly;

[0023] Figure 3 is an exploded schematic diagram of the roof laser radar installation device of the present invention;

[0024] Figure 4 It is a partial structural schematic diagram of the roof laser radar installation device of the present invention;

[0025] Figure 5 It is a schematic diagram of the arrangement of the positioning blocks;

[0026] Figure 6 It is an enlarged structural diagram at the positioning block;

[0027] Figure 7 It is a structural diagram of the positioning rib;

[0028] Figure 8 is a schematic diagram of the arrangement of the positioning boss;

[0029] Fig. 9 is an enlarged structural schematic diagram of the positioning boss;

[0030] Fig.10 It is a schematic diagram of the structure of the sealing ring;

[0031] Fig.11 This is a comparison chart of wind tunnel test results;

[0032] The marks in the above figures are: 1. Outer guard plate; 2. Luminous surface; 3. Inner guard plate; 4. Guard plate flange; 5. Guard plate window; 6. Sealing element; 7. LiDAR body; 8. Bolt; 9. Positioning block; 10. Positioning boss; 11. Positioning hole; 12. Third surface; 13. Fourth surface; 14. Positioning rib; 15. Sawtooth. DETAILED DESCRIPTION

[0033] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0034] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower" and similar expressions used in this article are for illustrative purposes only.

[0035] It should be noted that, in the following embodiments, the "first", "second", "third" and "fourth" do not represent an absolute distinction in structure and / or function, nor do they represent a sequence of execution, but are merely for the convenience of description.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] First, as Figures 1 to 8 As shown, the present invention provides a roof laser radar installation device, including an inner guard plate 3, an outer guard plate 1 and a first positioning mechanism for positioning the laser radar, a second positioning mechanism for positioning the laser radar is arranged on the inner guard plate 3, and a sealing mechanism is arranged between the outer guard plate 1 and the laser radar.

[0038] The sealing mechanism includes a sealing element 6. A guard plate window 5 for accommodating the light-emitting surface 2 of the laser radar is provided on the outer guard plate 1. The sealing element 6 is an annular structure arranged around the guard plate window 5. The sealing element 6 is located between the outer guard plate 1 and the laser radar.

[0039] The sealing element 6 is a sealing ring, and a sawtooth 15 in contact with the laser radar is arranged on the sealing element 6 .

[0040] The outer guard plate 1 is provided with a guard plate flange 4 , the sealing element 6 is sleeved on the guard plate flange 4 , and the guard plate flange 4 extends toward the inner side of the guard plate window 5 .

[0041] The first positioning mechanism includes a positioning boss 10 , and the laser radar is provided with a first positioning hole 11 for the positioning boss 10 to be embedded in.

[0042] The second positioning mechanism includes a positioning block 9, a plurality of positioning blocks 9 are provided, and a positioning hole 11 for the positioning block 9 to be embedded is provided on the laser radar.

[0043] The positioning block 9 is a wedge-shaped structure.

[0044] A fastening mechanism is provided on the inner guard plate 3 , and the fastening mechanism is configured to fix the laser radar on the inner guard plate 3 by cooperating with the bolts 8 .

[0045] In a second aspect of the present invention, the present invention further provides a laser radar installation method, which adopts the roof laser radar installation device and comprises the steps of:

[0046] S1. Assembling the roof laser radar installation device;

[0047] S2, positioning the laser radar on the roof laser radar mounting device;

[0048] S3. Fixedly connect the laser radar to the roof laser radar mounting device.

[0049] In a third aspect of the present invention, the present invention further provides a vehicle, comprising the roof laser radar mounting device.

[0050] Example

[0051] like Figures 1 to 8 As shown, an embodiment of the present invention provides a roof laser radar installation device, including an inner guard plate 3 and an outer guard plate 1 connected to each other and a first positioning mechanism for positioning the laser radar, a second positioning mechanism for positioning the laser radar is arranged on the inner guard plate 3, and a sealing mechanism is arranged between the outer guard plate 1 and the laser radar.

[0052] Specifically, if Figure 1 As shown, the roof laser radar mounting device of an embodiment of the present invention is installed on the roof cover of the vehicle body, so that the laser radar is located at the center of the front end of the roof, the outer guard plate 1 is located above the inner guard plate 3 and the laser radar, the length direction of the outer guard plate 1 is parallel to the Y direction (body width direction), and the laser radar is located in the middle position of the length direction of the outer guard plate 1.

[0053] like Figures 1 to 3 As shown, the sealing mechanism includes a sealing element 6, and a guard plate window 5 for accommodating the light-emitting surface 2 of the laser radar is provided on the outer guard plate 1. The guard plate window 5 is a through hole that is penetrated through the outer guard plate 1 along the thickness direction of the outer guard plate 1 to expose the light-emitting surface 2. The sealing element 6 is an annular structure arranged around the guard plate window 5. The sealing element 6 is located between the outer guard plate 1 and the laser radar. The sealing element 6 is used to achieve sealing between the receiving cavity where the laser radar is located and the external environment. The receiving cavity where the laser radar is located is formed by surrounding the outer guard plate 1 and the vehicle body roof. By setting the sealing element 6, impurities such as rainwater and dust in the external environment are prevented from entering the receiving cavity where the laser radar is located. In particular, rainwater entering the receiving cavity where the laser radar is located will affect the detection results of the laser radar, thereby ensuring the accuracy of the detection results, avoiding data distortion when the automatic driving collects road information, and avoiding affecting the automatic driving calculation. In addition, the external airflow can reduce the generation of wind noise in the space where the laser radar is located.

[0054] like Figure 2 and Figure 3As shown, a guard plate flange 4 is provided on the outer guard plate 1, and the guard plate flange 4 and the outer guard plate 1 are integrally formed, and a sealing element 6 is sleeved on the guard plate flange 4, and the guard plate flange 4 extends toward the inner side of the guard plate window 5 (where the receiving cavity is located). The guard plate window 5 is a rectangular hole, the guard plate flange 4 is rectangular, and the guard plate flange 4 is arranged around the entire edge of the guard plate window 5. The sealing element 6 is a sealing ring made of rubber material, and the guard plate flange 4 can provide convenience for the installation of the sealing element 6. The position of the sealing element 6 will not move. Before assembling the laser radar, the sealing ring is sleeved on the guard plate flange 4. When the laser radar is moved to the guard plate window 5, after the laser radar contacts the sealing ring, the laser radar can cooperate with the outer guard plate 1 to clamp the sealing ring, so that effective sealing can be achieved. The position of the sealing element 6 will not move during the assembly process. The sealing element 6 is well positioned through the guard plate flange 4, and is in a good sealing state, which can effectively prevent water and noise, thereby ensuring the sealing effect.

[0055] like Figure 2 , Figure 3 and Fig.10 As shown, the sealing element 6 is provided with a sawtooth 15 that contacts the laser radar. The sealing element 6 includes an annular ring portion and a sawtooth 15 arranged on the annular ring portion. The annular ring portion and the sawtooth 15 are annular structures arranged around the guard plate window 5. The annular ring portion is sleeved on the guard plate window 5. A plurality of sawtooths 15 are provided. One end of the sawtooth 15 is connected to the annular ring portion, and the other end of the sawtooth 15 is a tip. The sawtooth 15 is a structure with a V-shaped cross section. The outer surface of the sawtooth 15 includes a first surface and a second surface. The angle between the first surface and the second surface is less than 90 degrees. One end of the first surface and the second surface is connected to the annular ring portion, and the other end of the first surface and the second surface is connected to form a tip, which is used to contact the laser radar surface. The sawtooth 15 shape design of the sawtooth 15 rubber sealing ring can more effectively contact the sealing surface of the laser radar to form a tighter sealing structure. This design reduces the gap between the sealing surfaces, thereby improving the sealing performance.

[0056] like Fig.11 As shown, the sealing effect of the sealing surface affects the wind noise. In the figure, under the same wind speed condition, the wind noise can be well reduced after adopting the sealing structure of the present invention.

[0057] like Figure 2 , Figure 8 and Fig. 9As shown, the first positioning mechanism includes a positioning boss 10, which is fixedly arranged on the guard plate flange 4. A plurality of positioning bosses 10 are provided, and the positioning boss 10 is used to contact the surface of the laser radar. The positioning boss 10 and the sealing ring are respectively located on both sides of the guard plate flange 4. When the laser radar is moved toward the guard plate window 5 and the laser radar contacts the positioning boss 10, the laser radar is inserted into place and the laser radar can no longer be pushed forward. The setting of the positioning boss 10 can ensure that the laser radar can be accurately assembled in place.

[0058] like Figure 5 and Figure 6 As shown, the second positioning mechanism includes a positioning block 9, which is fixedly arranged on the inner guard plate 3, and a plurality of positioning blocks 9 are provided. The laser radar is provided with a positioning hole 11 for the positioning block 9 to be embedded. After the laser radar is moved to the guard plate window 5, each positioning block 9 is respectively embedded in a positioning hole 11, which can ensure that the laser radar can be accurately assembled in place, which is convenient for the subsequent fixed installation of the laser radar.

[0059] like Figure 5 and Figure 6 As shown, in this embodiment, the positioning block 9 is installed on the mounting surface of the inner guard plate 3, the positioning block 9 is a wedge-shaped structure, and the outer surface of the positioning block 9 includes a third surface 12 and a fourth surface 13, the third surface 12 and the fourth surface 13 are arranged in sequence along the moving direction of the laser radar during assembly, the angle between the third surface 12 and the fourth surface 13 is greater than 90 degrees and less than 180 degrees, the fourth surface 13 is parallel to the mounting surface, the third surface 12 is inclined, the first end of the third surface 12 is connected to one end of the fourth surface 13, the distance between the second end of the third surface 12 and the mounting surface is less than the distance between the first end of the third surface 12 and the mounting surface, the first end and the second end of the third surface 12 are opposite ends of the third surface 12, the inclined third surface 12 can guide the laser radar to move and play a guiding role. During operation, there is no need for calibration, and the laser radar can be pressed down, which helps to improve assembly efficiency and positioning accuracy.

[0060] like Figure 5 and Figure 6 As shown, in this embodiment, two positioning blocks 9 are provided, each positioning block 9 is distributed at a different position, and the third surfaces 12 of all positioning blocks 9 are parallel.

[0061] like Figure 4 and Figure 5As shown, a fastening mechanism is provided on the inner guard plate 3, and the fastening mechanism is configured to fix the laser radar on the inner guard plate 3 by cooperating with the bolt 8. The fastening mechanism includes a nut clip provided on the inner guard plate 3 and a nut provided on the nut clip, and the nut cooperates with the bolt 8. A plurality of nut clips are provided, each of which is distributed at a different position, and a nut is provided on each of the nut clips. Through the cooperation of a plurality of bolts 8 and nuts, the laser radar is firmly fixed and installed on the inner guard plate 3.

[0062] like Figure 4 and Figure 5 As shown, in this embodiment, three nut clips are provided, and the laser radar is fixedly mounted on the inner guard plate 3 through the cooperation of three bolts 8 and nuts.

[0063] like Figure 7 As shown, a positioning rib 14 is provided on the outer guard plate 1, and a positioning groove for the positioning rib 14 to be embedded in is provided on the inner guard plate 3. A plurality of positioning ribs 14 are provided, and the number of the positioning grooves is the same as the number of the positioning ribs 14. When the outer guard plate 1 and the inner guard plate 3 are assembled, each positioning rib 14 is respectively embedded in a positioning groove, which facilitates the assembly between the outer guard plate 1 and the inner guard plate 3 and helps to improve the assembly efficiency.

[0064] In a second aspect of the present invention, an embodiment of the present invention further provides a laser radar installation method, which adopts the roof laser radar installation device of the above structure and includes the following steps:

[0065] S1. Assemble the roof laser radar installation device;

[0066] S2, positioning the laser radar on the roof laser radar mounting device;

[0067] S3. Fix the laser radar to the roof laser radar mounting device.

[0068] In the above step S1, the outer guard plate 1 and the inner guard plate 3 are first assembled, and each positioning rib 14 on the outer guard plate 1 is respectively embedded in a positioning groove on the inner guard plate 3, and then the outer guard plate 1 and the inner guard plate 3 are pressed together to complete the assembly of the outer guard plate 1 and the inner guard plate 3. Finally, the sealing element 6 is assembled on the guard plate flange 4, and the sealing element 6 and the outer guard plate 1 are bonded together with an adhesive to form a roof lidar installation device.

[0069] In the above step S2, the laser radar is moved to the guard plate window 5, and the angle α between the moving direction of the laser radar and the outer guard plate 1 is about 5 degrees. After the laser radar contacts the positioning boss 10, the laser radar is inserted into place, and the laser radar and the outer guard plate 1 cooperate to clamp the sealing ring, and then press the laser radar, and the laser radar fits with the inner guard plate 3. At this time, the positioning block 9 is embedded in the positioning hole 11 to complete the positioning of the laser radar.

[0070] In the above step S3, the bolt 8 is tightened by cooperating with the fastening mechanism to fix the laser radar on the inner guard plate 3.

[0071] In a third aspect of the present invention, an embodiment of the present invention further provides a vehicle, including a roof laser radar installation device of the above structure. The specific structure of the roof laser radar installation device can be referred to Figures 1 to 8 Since the vehicle of the present invention includes the roof laser radar installation device in the above embodiment, it has all the advantages of the above roof laser radar installation device.

[0072] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A rooftop laser radar installation device, characterized in that: It includes an inner guard plate, an outer guard plate and a first positioning mechanism for positioning the laser radar. The inner guard plate is provided with a second positioning mechanism for positioning the laser radar, and a sealing mechanism is provided between the outer guard plate and the laser radar.

2. The roof laser radar installation device according to claim 1, characterized in that: The sealing mechanism includes a sealing element. A guard plate window for accommodating the light-emitting surface of the laser radar is arranged on the outer guard plate. The sealing element is an annular structure arranged around the guard plate window. The sealing element is located between the outer guard plate and the laser radar.

3. The roof laser radar installation device according to claim 2, characterized in that: The sealing element is a sealing ring, and a sawtooth in contact with the laser radar is arranged on the sealing element.

4. The roof laser radar installation device according to claim 2, characterized in that: The outer guard plate is provided with a guard plate flange, the sealing element is sleeved on the guard plate flange, and the guard plate flange extends toward the inner side of the guard plate window.

5. The roof laser radar installation device according to any one of claims 1 to 4, characterized in that: The first positioning mechanism includes a positioning boss, and a plurality of positioning bosses are provided.

6. The roof laser radar installation device according to any one of claims 1 to 4, characterized in that: The second positioning mechanism includes a positioning block, a plurality of positioning blocks are provided, and a positioning hole for the positioning block to be embedded is provided on the laser radar.

7. The roof laser radar installation device according to claim 6, characterized in that: The positioning block is a wedge-shaped structure.

8. The roof laser radar installation device according to any one of claims 1 to 7, characterized in that: The inner guard plate is provided with a fastening mechanism, which is configured to fix the laser radar on the inner guard plate by cooperating with bolts.

9. A laser radar installation method, characterized in that: The roof laser radar installation device according to any one of claims 1 to 8 is adopted, and comprises the steps of: S1. Assembling the roof laser radar installation device; S2, positioning the laser radar on the roof laser radar mounting device; S3. Fixedly connect the laser radar to the roof laser radar mounting device.

10. A vehicle, characterized in that It comprises the roof lidar mounting device as described in any one of claims 1 to 9.

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