Laser radar built-in installation device and vehicle

Abstract

The invention relates to a laser radar built-in installation device and a vehicle. The laser radar built-in installation device comprises an installation support (10). The mounting bracket (10) comprises a base plate (11) and a support (12) connected to the base plate (11). The substrate (11) is provided with a first surface (111) and a second surface (112) which are arranged oppositely. The first surface (111) is used for being fixedly connected with the inner side face of vehicle window glass (20), and the support (12) is arranged on the second surface (112). The support (12) is provided with a mounting surface (1211) used for mounting the laser radar (30).

Description

LiDAR built-in installation device and vehicle Technical Field

[0001] The present application relates to the field of laser radar installation technology, and in particular to a laser radar built-in installation device and a vehicle. Background Art

[0002] With the rapid development of autonomous driving technology, according to the "Automotive Driving Automation Classification" standard classification, the autonomous driving levels are divided into L0 (emergency assistance), L1 (partial driving assistance), L2 (combined driving assistance), L3 (conditional autonomous driving), L4 (highly autonomous driving) and L5 (fully autonomous driving). The current industry development trend is that vehicles above L2 level are equipped with multiple sensors such as cameras and laser radar (LiDAR).

[0003] LiDAR scans the surrounding environment by rapidly and repeatedly emitting laser beams to obtain "point cloud" data reflecting the shape, position, and movement of one or more objects in the surrounding environment. The laser wavelengths emitted by LiDAR used on vehicles are 905nm and 1550nm. The advantage of lasers is that they are focused so that they do not diverge over long distances. However, this makes it impossible to bypass obstacles and can be greatly disturbed or even inoperable in rainy, foggy, windy, and sandy weather. Therefore, the market trend and demand is to fully integrate the LiDAR installed on the outside of the vehicle in related technologies into the vehicle interior, especially on the inner surface of the front windshield.

[0004] Summary of the Invention

[0005] According to various embodiments of the present application, a laser radar built-in installation device and a vehicle are provided.

[0006] A built-in installation device for a laser radar comprises: a mounting bracket, the mounting bracket comprising a substrate and a support connected to the substrate, the substrate having a first surface and a second surface arranged opposite to each other, the first surface being used for fixed connection to the inner side surface of a vehicle window glass, the support being arranged on the second surface, and the support being provided with a mounting surface for installing the laser radar.

[0007] In one embodiment, the support includes a mounting plate and a support plate, and the support plate is fixedly connected between the mounting plate and the base plate; the mounting plate has the mounting surface located on one side of the second surface, and the mounting surface is set at an angle to the second surface.

[0008] In one embodiment, the angle between the mounting surface and the second surface is 15° to 80°.

[0009] In one embodiment, a relief through hole is provided on the base plate, the mounting plate and the support plate are arranged to form a relief space, and the relief space is communicated with the relief through hole.

[0010] In one embodiment, at least one shock-absorbing through hole is provided on the mounting plate and / or the support plate.

[0011] In one embodiment, the ratio of the area S1 of the shock-absorbing through hole to the area S2 of the mounting surface is between 1 / 5 and 3 / 4.

[0012] In one embodiment, when the NVH value of the laser radar is equal to or greater than 25db, the ratio of the area S1 of the shock-absorbing through hole to the area S2 of the mounting surface is between 1 / 4 and 3 / 4.

[0013] In one embodiment, when the NVH value of the laser radar is equal to or greater than 25db, the ratio of the area S1 of the shock-absorbing through hole to the area S2 of the mounting surface is between 1 / 5 and 2 / 3.

[0014] In one embodiment, the mounting surface is provided with a connector for fixing the laser radar on the mounting surface, and the connector is a welding part, an adhesive part or a threaded connector.

[0015] In one embodiment, the mounting surface is provided with at least one elastic member and / or at least one protrusion for abutting and cooperating with the laser radar.

[0016] In one embodiment, the mounting bracket is provided with a first light shield connected to the substrate, the first light shield is arranged on the second surface and protrudes in a direction away from the second surface, and the first light shield is formed to form a light-transmitting channel, and the detection signals emitted and received by the laser radar pass through the vehicle window glass through the light-transmitting channel.

[0017] In one embodiment, the laser radar built-in installation device also includes a heating element, and the heating element is arranged on the first light shield.

[0018] In one embodiment, the first light shield includes a light shielding bottom plate, and the angle between the light shielding bottom plate and the second surface is smaller than the angle between the mounting surface and the second surface.

[0019] In one embodiment, the laser radar built-in installation device also includes a shielding cover, which is fixedly installed on the inner side of the vehicle window glass, and the shielding cover is used to cover the laser radar and the mounting bracket.

[0020] In one embodiment, an electronic display screen is provided on the outer wall of the shielding cover.

[0021] In one embodiment, the built-in installation device of the laser radar further includes a connecting seat, which is used to install a rearview mirror.

[0022] In one embodiment, the minimum distance between the signal transmitting end of the laser radar and the inner side of the vehicle window glass is less than or equal to 8 mm.

[0023] In one embodiment, the laser radar built-in mounting device further includes a camera bracket and / or a rain sensor bracket connected to the mounting bracket.

[0024] A vehicle comprises a vehicle window glass, a laser radar and a built-in mounting device for the laser radar, wherein the substrate is fixedly connected to the inner side surface of the vehicle window glass, the laser radar is mounted on the mounting surface of the support, the laser radar faces the vehicle window glass, and the detection signals emitted and received by the laser radar pass through the vehicle window glass.

[0025] In one embodiment, the vehicle further includes a camera and / or a rain sensor, wherein the camera is mounted on the built-in mounting device of the laser radar and / or the rain sensor is mounted on the built-in mounting device of the laser radar.

[0026] The details of one or more embodiments of the present application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG1 is a schematic diagram of the structure of the built-in installation device of the laser radar of the present application installed on the window glass;

[0028] FIG2 is a schematic front view of a built-in installation device for a laser radar according to a first embodiment of the present application;

[0029] FIG3 is a schematic cross-sectional view of the right side of the built-in installation device of the laser radar shown in FIG2 ;

[0030] FIG4 is an axial schematic diagram of the second surface of the built-in laser radar mounting device shown in FIG2 ;

[0031] FIG5 is an axial schematic diagram of the first surface of the built-in laser radar mounting device shown in FIG2 ;

[0032] FIG6 is a front structural diagram of a built-in installation device for a laser radar according to a second embodiment of the present application;

[0033] FIG7 is an axial schematic diagram of the second surface of the built-in laser radar mounting device shown in FIG6 ;

[0034] FIG8 is an axial schematic diagram of the first surface of the built-in laser radar mounting device shown in FIG6 ;

[0035] FIG9 is an axial schematic diagram of the second surface of the built-in laser radar mounting device according to the third embodiment of the present application;

[0036] FIG10 is an axial schematic diagram of the first surface of the built-in laser radar mounting device shown in FIG9 ;

[0037] FIG11 is an axial schematic diagram of the second surface of the built-in laser radar mounting device according to the fourth embodiment of the present application;

[0038] Figure 12 is a structural schematic diagram of the laser radar built-in installation device of the present application, which is provided with an avoidance member and a connecting seat. DETAILED DESCRIPTION

[0039] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0040] There are many technical difficulties in fully integrating the laser radar installed on the outside of the vehicle in the related art into the interior surface of the front windshield glass. The inventors have found that the reason for this problem is that the conventional technical means is to directly install the laser radar on the traditional windshield camera bracket. Compared with the vehicle-mounted camera, the laser radar is larger in size and weight, which makes the installation stability of the laser radar poor, and there is also a large resonance noise, or the accuracy of the detection signal cannot be guaranteed.

[0041] Based on the above reasons, the present application provides a laser radar built-in installation device and a vehicle, which can stably install the laser radar on the side of the window glass facing the interior of the vehicle and ensure the accuracy of the detection signal.

[0042] Referring to Figures 1 to 5 , the internal laser radar mounting device described herein is used to securely mount a laser radar 30 to the inner surface of a vehicle window 20. The laser radar 30 includes a signal transmitter for transmitting detection signals and a signal receiver for receiving detection signals. The laser radar 30 faces the vehicle window 20, and the detection signals transmitted and received by the laser radar 30 pass through the vehicle window 20. Specifically, the detection signals transmitted by the laser radar 30 can pass through the vehicle window 20 to detect the vehicle's external environment. Part of the detection signal reflected by objects in the external environment can pass through the vehicle window 20 again and be received by the laser radar 30, thereby enabling the laser radar 30 to perceive information about the vehicle's external environment. The wavelength of the laser radar 30's detection signal can be, for example, 905 nm, 1550 nm, etc. In Figure 1 , the exemplary vehicle window 20 is the front window, but this is not limiting. The vehicle window 20 can also be the rear windshield, side windows, A-pillars, B-pillars, etc. The Z direction is the height direction of the vehicle, and the X direction is the driving direction of the vehicle.

[0043] Referring to Figures 1 to 5, the built-in mounting device of the laser radar provided in the first embodiment of the present application includes a mounting bracket 10. The mounting bracket 10 includes a substrate 11 and a support 12 connected to the substrate 11. The substrate 11 has a first surface 111 and a second surface 112 arranged opposite to each other. The first surface 111 is used to be fixedly connected to the inner side of the vehicle window glass 20, and the support 12 is arranged on the second surface 112. The support 12 is provided with a mounting surface 1211 for installing the laser radar 30. Specifically, the first surface 111 is fixedly connected to the inner side of the vehicle window glass 20 by bonding, welding, etc.

[0044] It should be noted that the inner side of the window glass 20 refers to the surface of the window glass 20 facing the interior of the vehicle, and the outer side of the window glass 20 refers to the surface of the window glass 20 facing the exterior of the vehicle.

[0045] The internal installation device for the laser radar described in this application is fixedly connected to the inner side of the vehicle window glass 20 via the first surface 111 of the substrate 11, and the laser radar 30 is fixedly installed inside the vehicle via the mounting surface 1211 of the support 12. This allows the laser radar 30 to be stably installed on the inner side of the vehicle window glass 20, ensuring the detection accuracy of the laser radar after it is built into the vehicle. Preferably, the minimum distance between the signal transmitting end of the laser radar 30 and the inner side of the vehicle window glass 20 is less than or equal to 8 mm, and specifically can be 8 mm, 7 mm, 6 mm, 5 mm, 4 mm, 3 mm, 2 mm, 1 mm, or 0.5 mm. This shortens the distance between the laser radar 30 and the vehicle window glass 20, and correspondingly shortens the optical path of the detection signal transmitted and received by the laser radar through the vehicle window glass 20, thereby reducing the absorption of the detection signal by the vehicle window glass 20 and further improving the detection accuracy of the laser radar after it is built into the vehicle. At the same time, when the field of view (FOV) of the laser radar detection is determined, shortening the distance between the laser radar 30 and the vehicle window glass 20 can also reduce the area of ​​the vehicle window glass 20 through which the detection signals transmitted and received by the laser radar pass. This also reduces the removal area of ​​the additional thermal insulation coating and the coverage area of ​​the infrared anti-reflection coating on the vehicle window glass 20, thereby reducing the design and production difficulty and cost of the vehicle window glass 20. Considering the ease of assembly between the mounting bracket 10, the vehicle window glass 20, and the laser radar 30, it is further preferred that the minimum distance between the signal transmitting end of the laser radar 30 and the inner surface of the vehicle window glass 20 be 1 mm to 5 mm.

[0046] Referring to Figures 2 to 4 , the support 12 includes a mounting plate 121 and a support plate 122. The support plate 122 is fixedly connected between the mounting plate 121 and the base plate 11. The mounting plate 121 has a mounting surface 1211 located on one side of the second surface 112. The mounting surface 1211 is arranged at an angle to the second surface 112. Because the mounting surface 1211 is arranged at an angle to the second surface 112, the laser radar 30 mounted on the mounting surface 1211 is in a roughly horizontal posture, that is, the laser radar 30 is roughly parallel to the ground, thereby ensuring that the laser radar 30 can stably and maximally detect the driving environment in front of the vehicle. The detection signal emitted by the laser radar 30 is incident on the inner surface of the vehicle window glass 20 at an incident angle of 10° to 75°. In order to ensure that the laser radar 30 can perform normal detection work, it is preferred that the vehicle window glass 20 has a transmittance of at least 80% for the detection signal incident at an incident angle of 10° to 75°. Specific examples include 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, etc., and more preferably has a transmittance of at least 85%.

[0047] In order to ensure that the laser radar 30 installed on the mounting surface 1211 is in a roughly horizontal posture, it is preferred that the angle formed by the mounting surface 1211 and the second surface 112 is an acute angle, more preferably 15° to 80°, and specific examples include 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, etc.

[0048] Referring to Figures 3, 4, and 5, the substrate 11 is provided with an escape hole, and the mounting plate 121 and the support plate 122 are arranged to form an escape space 113, which is connected to the escape hole. Specifically, the outline of the mounting plate 121 is connected to the edge of the escape hole through the support plate 122, and the mounting surface 1211 is located on the side of the mounting plate 121 facing away from the escape space 113. The design of the escape hole and the escape space 113 makes the built-in mounting device of the laser radar less material and lighter, which can help further reduce vibration. Preferably, the substrate 11, the mounting plate 121, and the support plate 122 are integrally formed. Specifically, for example, a thermoplastic resin such as polybutylene terephthalate (PBT), nylon 66 (PA66), and thermoplastic elastomer (TPE) is used to form the substrate 11, the mounting plate 121, and the support plate 122 into an integral unit. This improves processing efficiency, and the support 12 can be stably connected to the substrate 11. In one embodiment, the material of the support plate 122 may also be different from the material of the substrate 11 and the mounting plate 121. Specifically, the support plate 122 is a retractable elastic structure, for example, a polydimethylsiloxane (PDMS) elastomer with a threaded shape is selected to adjust the angle formed by the mounting surface 1211 and the second surface 112, thereby adjusting the field of view FOV of the laser radar 30 in the vertical direction, which can minimize the detection signal emitted by the laser radar 30 from being reflected back by the window glass 20, increase the transmittance of the detection signal, and thus improve the performance of the laser radar 30.

[0049] In the present application, the substrate 11 can be a flat plate or a curved plate. Since the vehicle window glass 20 is generally curved, when the substrate 11 is a curved plate, the radius of curvature of the substrate 11 is preferably greater than or equal to the radius of curvature of the vehicle window glass 20 , that is, the curvature of the substrate 11 is less than or equal to the curvature of the vehicle window glass 20 , so that the mounting bracket 10 can be stably fixed to the inner side of the vehicle window glass 20 .

[0050] Referring to Figures 2 to 4 , in one embodiment, at least two connectors 41 are provided on the mounting surface 1211. These connectors 41 are used to secure the laser radar 30 to the mounting surface 1211. The connectors 41 include, but are not limited to, welded, adhesive, or threaded connectors. Preferably, the connectors 41 are threaded connectors. Threaded connections offer advantages such as easy installation, convenient disassembly, and simple operation. Examples include bolts and screws.

[0051] In Figures 2, 3, and 4, the connector 41 comprises at least three threaded mounting holes. The mounting surface 1211 is provided with three spaced-apart columns, each of which has a threaded hole. The axis of each threaded hole is perpendicular to the mounting surface 1211. The laser radar 30 is stably fixed to the mounting surface 1211 via bolts and threaded holes. Preferably, the bolts can be shock-absorbing bolts, which can also prevent resonance between the laser radar 30 and the support 12, thereby reducing vibration for the laser radar 30 on the mounting surface 1211. Without limitation, the connector 41 can also be a plurality of studs spaced apart on the mounting surface 1211, which, in conjunction with nuts, stably fix the laser radar 30 to the mounting surface 1211.

[0052] Specifically, the shock-absorbing bolt consists of a screw and a rubber column. The screw has a head that is larger than its diameter. The screw head is embedded in the rubber column at both ends. The end surface of the screw head near the thread is flush with or slightly protrudes from the end surface of the rubber column. The screws at both ends of the rubber column are coaxial. The rubber column can be sufficiently large or thick to enhance the shock absorption effect on the laser radar 30.

[0053] Referring to Figures 1 to 4 , in one embodiment, the mounting bracket 10 is provided with a first light shield 13 connected to the base plate 11. The first light shield 13 is disposed on the second surface 112 and protrudes in a direction away from the second surface 112. The first light shield 13 encloses a light-transmitting channel 131. Detection signals transmitted and received by the laser radar 30 pass through the vehicle window glass 20 through the light-transmitting channel 131.

[0054] The light-transmitting channel 131 has a light inlet and a light outlet positioned opposite each other. The light inlet extends through the first surface 111 and the second surface 112 and is arranged corresponding to the signal transmitting end and signal receiving end of the laser radar 30. The light outlet extends to the inner side of the vehicle window glass 20. This allows the detection signal emitted from the signal transmitting end of the laser radar 30 installed on the mounting surface 1211 to pass through the light inlet, light outlet, and vehicle window glass 20 to reach the outside of the vehicle, and the reflected detection signal to pass through the vehicle window glass 20, light outlet, and light inlet to reach the receiving end of the laser radar. The first light shielding cover 13 acts as a light shield, reducing optical signal loss and preventing stray light interference.

[0055] Specifically, the first light shield 13 is a U-shaped panel, comprising a light shielding bottom plate 132 and two light shielding side plates 133. The light shielding bottom plate 132 is connected to the second surface 112 via the two light shielding side edges 133. The light shielding bottom plate 132 and the two light shielding side plates 133 enclose a light-transmitting channel 131. Preferably, the angle between the light shielding bottom plate 132 and the second surface 112 is smaller than the angle between the mounting surface 1211 and the second surface 112, thereby meeting the field of view (FOV) requirements of the laser radar 30 to the greatest extent. Specifically, for example, the angle between the light shielding bottom plate 132 and the second surface 112 is an acute angle and is smaller than the acute angle between the mounting surface 1211 and the second surface 112. Another example is that the angle between the light shielding bottom plate 132 and the second surface 112 is 0, i.e., the light shielding bottom plate 132 and the second surface 112 are parallel to each other.

[0056] In one embodiment, the built-in installation device of the laser radar further includes a heating element (not shown), which is disposed on the first light shielding cover 13. Specifically, the heating element can be adhered to the surface of the light shielding bottom plate 132 and / or the light shielding side plate 133 that faces away from the light transmission channel 131, or can be integrated into the light shielding bottom plate 132 and / or the light shielding side plate 133. In this way, the first light shielding cover 13 is heated by the heating element, and the heat generated can be radiated into the light transmission channel 131, so that the FOV space between the laser radar 30 and the vehicle window glass 20 is heated, thereby achieving a defogging effect, eliminating the influence of water mist on the detection signal, and improving the detection accuracy of the laser radar 30.

[0057] The heating element includes but is not limited to a heating plate, a heating wire, a heating rod, etc. Specifically, the heating element is configured as a heating plate, and the power of the heating plate is controlled to be, for example, 0.1 W / cm2 to 15 W / cm2.

[0058] Referring to Figures 2 and 4 , at least one elastic member 14 is provided on the mounting surface 1211 for abutting and cooperating with the laser radar 30. The force generated by the connecting member 41 keeps the laser radar 30 against the mounting surface 1211, and the force generated by the elastic member 14 causes the laser radar 30 to move away from the mounting surface 1211. When the laser radar 30 is installed on the mounting surface 1211, it abuts against the elastic member 14. The elastic member 14 supports and compensates for locking positioning errors, thereby avoiding Z-direction assembly gaps and shaking. Optionally, the elastic member 14 includes but is not limited to being configured as a spring sheet structure. Specifically, at least a portion of the elastic member 14 extends through the first surface 111. When there is no pressure from the laser radar 30, the elastic member 14 protrudes a certain height from the second surface 112. When there is pressure from the laser radar 30, the elastic member 14 is flush with the second surface 112 or protrudes a smaller height.

[0059] Referring to Figures 2 and 4 , mounting surface 1211 is provided with at least one protrusion 15 for abutting and cooperating with laser radar 30. The force generated by connector 41 maintains laser radar 30 against mounting surface 1211, while the force generated by protrusion 15 forces laser radar 30 away from mounting surface 1211, resulting in abutment between protrusion 15 and laser radar 30 mounted on mounting surface 1211. The height of protrusion 15 is less than or equal to 2 mm, for example, 2 mm, 1.5 mm, 1 mm, 0.8 mm, 0.5 mm, 0.3 mm, 0.1 mm, etc. Preferably, the height of protrusion 15 is 0.1 mm to 0.5 mm, creating a small gap between laser radar 30 and mounting surface 1211, thereby providing a buffering and vibration reduction effect.

[0060] In some embodiments, the material of the mounting bracket 10 is metal or thermoplastic resin. The metal can be a metal material or alloy material such as iron, zinc, aluminum and stainless steel. Exemplarily, the mounting bracket 10 is made of zinc alloy. Thermoplastic resin can be materials such as polybutylene terephthalate (PBT), nylon 66 (PA66) and thermoplastic elastomer (TPE). Exemplarily, the mounting bracket 10 specifically uses polybutylene terephthalate mixed with glass fiber (PBT+GF30). In this way, it has been found that the use of thermoplastic resin can reduce resonance, thereby greatly reducing noise.

[0061] Through extensive testing and research, the internal laser radar mounting device of this embodiment is suitable for laser radars 30 weighing less than or equal to 500g and / or having dimensions less than or equal to 300mm (length) * 200mm (width) * 50mm (height). Laser radar 30 can use either a 905nm laser radar or a 1550nm laser radar.

[0062] Referring to Figure 1 , the internal laser radar installation device also includes a shielding cover 50, which is fixedly mounted on the inner side of the vehicle window glass 20. The shielding cover 50 is used to cover the laser radar 30 and the mounting bracket, thereby improving the aesthetics of the vehicle interior and protecting the laser radar 30. The shielding cover 50 is preferably made of a thermoplastic resin, which may be polybutylene terephthalate (PBT), nylon 66 (PA66), thermoplastic elastomer (TPE), polypropylene (PP), or other materials.

[0063] Referring to Figure 1 , the built-in laser radar installation device also includes a connecting seat 60. The connecting seat 60 is connected to the outer wall of the shielding cover 50 and is used to install a rearview mirror (not shown in the figure). In this way, the built-in laser radar installation device can be used not only to install the laser radar 30, but also to install a rearview mirror, integrating the rearview mirror function. Specifically, the connecting seat 60 can be adhesively fixed to the outer wall of the shielding cover 50, or it can be fixed to the outer wall of the shielding cover 50 by fasteners such as bolts, nuts, screws, pins, and rivets.

[0064] In another embodiment, an electronic display screen is provided on the outer wall of the shielding cover 50. This electronic display screen not only provides electronic display and audio playback functions, but also integrates rearview mirror functionality, eliminating the need for a separate rearview mirror inside the vehicle and helping to save interior space. Specifically, the electronic display screen can be embedded in the outer wall of the shielding cover 50, forming an integrated structure with the shielding cover 50.

[0065] In another embodiment, the internal laser radar mounting device further includes a connector 60. Connector 60 is used to mount a rearview mirror. The shielding cover 50 has an opening (not shown), through which connector 60 extends into the shielding cover 50 and then connects to the mounting bracket 10. In this way, the internal laser radar mounting device can be used to mount not only the laser radar 30 but also a rearview mirror, integrating rearview mirror functionality.

[0066] Referring to Figures 6 to 8 , the mounting bracket 10 provided in the second embodiment is generally the same as the mounting bracket provided in the first embodiment, and also includes a base plate 11, a support 12, and a first light shield 13. In the second embodiment, the connecting member 41 comprises at least four assembly holes, each of which is a light hole. Two opposing vertical plates are provided on the mounting surface 1211, each of which has four light holes. The axis of each light hole is parallel to the mounting surface 1211. Bolts passing through the light holes engage with nuts or threaded holes on the laser radar to stably secure the laser radar 30 to the mounting surface 1211. To maintain the stability of the laser radar 30 installation, at least three reinforcing ribs 42 are provided on the side of each vertical plate facing away from the mounting surface 1211. Preferably, the bolts can be shock-absorbing bolts, which can also prevent resonance between the laser radar 30 and the support 12, thereby reducing vibration of the laser radar 30 on the mounting surface 1211.

[0067] In Figures 6 to 8 , because the laser radar 30 generates vibrations of a certain frequency during operation, at least one shock-absorbing through-hole 123 is defined on the mounting plate 121. This shock-absorbing through-hole 123 reduces the contact area between the laser radar 30 and the support 12, thereby reducing resonance with the mounting bracket 10 and, consequently, noise. It is understood that at least one shock-absorbing through-hole 123 may also be defined on the support plate 122 alone, or both the mounting plate 121 and the support plate 122 may have at least one shock-absorbing through-hole 123.

[0068] In some embodiments, the ratio of the area S1 of the shock-absorbing through hole 123 to the area S2 of the mounting surface 1211 is between 1 / 5 and 3 / 4. In this embodiment, the ratio of the area S1 of the shock-absorbing through hole 123 to the area S2 of the mounting surface 1211 can be optimally adjusted according to the NVH value of the selected laser radar 130. Preferably, when the NVH value of the laser radar 130 is equal to or greater than 25db, the ratio of the area S1 of the shock-absorbing through hole 123 to the area S2 of the mounting surface 1211 is between 1 / 4 and 3 / 4, and specific examples include 1 / 4, 2 / 7, 1 / 3, 2 / 5, 1 / 2, 3 / 5, 5 / 8, 2 / 3, 7 / 10, 3 / 4, etc. Preferably, when the NVH value of the laser radar 130 is equal to or greater than 25db, the ratio of the area S1 of the shock-absorbing through-hole 123 to the area S2 of the mounting surface 1211 is between 1 / 5 and 2 / 3, and specific examples include 1 / 5, 1 / 4, 2 / 7, 3 / 10, 1 / 3, 2 / 5, 1 / 2, 3 / 5, 5 / 8, 2 / 3, etc. It should be noted that NVH is an abbreviation of the first letters of the English letters of Noise, Vibration and Harshness. The NVH value of the laser radar 130 refers to the comprehensive value of various indicators such as noise, vibration and comfort. When only one shock-absorbing through-hole 123 is provided, the area S1 of the shock-absorbing through-hole 123 is equal to the area of ​​the single shock-absorbing through-hole 123; when multiple shock-absorbing through-holes 123 are provided, the area S1 of the shock-absorbing through-hole 123 is equal to the total area of ​​the multiple shock-absorbing through-holes 123.

[0069] In some embodiments, it is necessary to install both a laser radar 30 and a camera and / or a rain sensor on the vehicle window glass 20, so it is necessary to design a composite multifunctional mounting bracket 10. The built-in mounting device of the laser radar also includes a camera bracket and / or a rain sensor bracket connected to the mounting bracket 10.

[0070] Please refer to Figures 9 and 10. The mounting bracket 10 provided in the third embodiment is generally the same as the mounting bracket provided in the first embodiment, and also includes a base plate 11, a support 12 and a first light shield 13. In the third embodiment, the built-in mounting device of the laser radar also includes a camera bracket 42 connected to the mounting bracket 10, and the camera bracket 42 is used to fix the camera (not shown in the figure). It can be understood that the built-in mounting device of the laser radar also includes a rain sensor bracket (not shown in the figure), and the rain sensor bracket is used to fix the rain sensor (not shown in the figure). Optionally, the camera bracket 42 and the rain sensor bracket can each include but are not limited to clips, bolts, pins, rivets, glue, etc. In addition, the respective quantities of the camera bracket 42 and the rain sensor bracket are adjusted and set according to actual needs.

[0071] In some embodiments, the camera and lidar 30 can be arranged side by side, and the camera bracket 42 and support 12 can also be arranged side by side. Accordingly, a second light shield 17 is provided on the mounting bracket 10. The second light shield 17 is used to reduce or even eliminate interference from stray light when the camera captures exterior image information through the vehicle window glass 20, thereby improving the quality of the acquired exterior image information.

[0072] In other embodiments, the camera and the laser radar 30 may be arranged in a stacked arrangement, and the camera bracket 42 and the support 12 may also be arranged in a stacked arrangement. Specifically, the camera bracket 42 may be mounted on the support 12. This assembly relationship can minimize the spatial arrangement distance between the laser radar 30 and the camera, thereby reducing the area of ​​the base plate 11 of the mounting bracket 10, and further reducing the space occupied by the laser radar 30 and the camera on the top of the vehicle window glass 20.

[0073] Referring to Figure 11 , the mounting bracket 10 provided in the fourth embodiment is generally similar to the mounting bracket provided in the third embodiment, and also includes a base plate 11, a support 12, a first light shield 13, a camera bracket 42, and a second light shield 17. In the fourth embodiment, at least two circular shock-absorbing holes 123 are defined in the support plate 122. It is understood that the shock-absorbing holes 123 described herein may also be rectangular, triangular, or elliptical.

[0074] Please refer to Figure 12. A avoidance member 16 is provided on the mounting bracket 10. The avoidance member 16 spans the laser radar 30. The opposite ends of the avoidance member 16 are respectively located on the opposite sides of the laser radar 30 and are both connected to the substrate 11. The avoidance member 16 is connected to the connecting seat 60. The connecting seat 60 is used to install a rearview mirror. An opening (not shown in the figure) is provided on the shielding cover 50. The connecting seat 60 extends through the opening into the interior of the shielding cover 50 and is connected to the mounting bracket 10. Among them, the connection method between the opposite ends of the avoidance member 16 and the substrate 11 includes but is not limited to bonding, clamping, bolts, pins, rivets, etc. In some embodiments, the material of the avoidance member 16 can be a metal material or a non-metallic material. In this embodiment, a metal material is preferably used, such as cast aluminum, so as to ensure the overall structural strength.

[0075] Referring to FIG1 , the present application further provides a vehicle, comprising a vehicle window glass 20, a laser radar 30, and the aforementioned laser radar built-in mounting device. A substrate 11 is fixedly connected to the inner side of the vehicle window glass 20, and the laser radar 30 is mounted on a mounting surface 1211 of a support 12. The laser radar 30 faces the vehicle window glass 20, and detection signals transmitted and received by the laser radar 30 pass through the vehicle window glass 20. By using the laser radar built-in mounting device to fixedly mount the laser radar 30 inside the vehicle, the laser radar 30 can be stably mounted on the inner side of the vehicle window glass 20, thereby ensuring detection accuracy after the laser radar 30 is built into the vehicle.

[0076] In some embodiments, an infrared anti-reflection structure (not shown) is further provided on at least one of the outer side and the inner side of the vehicle window glass 20. The infrared anti-reflection structure covers at least the area where the detection signal passes through the vehicle window glass 20. The detection signal can pass through the vehicle window glass 20 and the infrared anti-reflection structure. Due to the presence of the infrared anti-reflection structure, the reflectivity of the vehicle window glass 20 to the detection signal can be further reduced, so that the area covered by the infrared anti-reflection structure has a higher transmittance to the detection signal than other uncovered areas of the vehicle window glass 20, thereby more specifically improving the local signal transmission quality of the vehicle window glass 20, which is conducive to improving the development trend of intelligent driving of vehicles using the vehicle window glass 20. Examples of the infrared anti-reflection structure include infrared anti-reflection coatings, infrared anti-reflection films, infrared anti-reflection ion implantation layers, infrared anti-reflection etching concave-convex structures, etc., which are used to reduce reflection at the wavelength of the detection signal (e.g., 905nm, 1550nm).

[0077] In some embodiments, the vehicle further includes a camera and / or a rain sensor, the camera being mounted on the lidar built-in mounting device, and / or the rain sensor being mounted on the lidar built-in mounting device.

[0078] It should be noted that the "support 12" can be "a part of the substrate 11", that is, the "support 12" and the "other parts of the substrate 11" are manufactured as one piece; it can also be an independent component that can be separated from the "other parts of the substrate 11", that is, the "support 12" can be manufactured independently and then combined with the "other parts of the substrate 11" into a whole.

[0079] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0080] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A laser radar built-in installation device, the laser radar built-in installation device comprising: The mounting bracket includes a substrate and a support connected to the substrate, the substrate having a first surface and a second surface arranged opposite to each other, the first surface being used for fixed connection with the inner side surface of the vehicle window glass, the support being arranged on the second surface, and the support being provided with a mounting surface for installing a laser radar.

2. The laser radar built-in installation device according to claim 1, wherein: The support comprises a mounting plate and a support plate, wherein the support plate is fixedly connected between the mounting plate and the base plate; the mounting plate has the mounting surface located on one side of the second surface, and the mounting surface is arranged at an angle with the second surface.

3. The laser radar built-in installation device according to claim 2, wherein: The included angle between the mounting surface and the second surface is 15° to 80°.

4. The laser radar built-in installation device according to claim 2 or 3, wherein: The base plate is provided with an avoidance through hole, the mounting plate and the support plate are arranged to form an avoidance space, and the avoidance space is communicated with the avoidance through hole.

5. The laser radar built-in installation device according to any one of claims 2 to 4, wherein: At least one shock-absorbing through hole is formed on the mounting plate and / or the supporting plate.

6. The laser radar built-in installation device according to claim 5, wherein: The ratio of the area S1 of the shock-absorbing through hole to the area S2 of the mounting surface is between 1 / 5 and 3 / 4.

7. The laser radar built-in installation device according to claim 6, wherein: When the NVH value of the laser radar is equal to or greater than 25db, the ratio of the area S1 of the shock-absorbing through hole to the area S2 of the mounting surface is between 1 / 4 and 3 / 4.

8. The laser radar built-in installation device according to claim 6 or 7, wherein: When the NVH value of the laser radar is equal to or greater than 25db, the ratio of the area S1 of the shock-absorbing through hole to the area S2 of the mounting surface is between 1 / 5 and 2 / 3.

9. The laser radar built-in installation device according to any one of claims 1 to 8, wherein: The mounting surface is provided with a connector for fixing the laser radar on the mounting surface, and the connector is a welding part, an adhesive part or a threaded connector.

10. The laser radar built-in installation device according to any one of claims 1 to 9, wherein: The mounting surface is provided with at least one elastic member and / or at least one protrusion for abutting and cooperating with the laser radar.

11. The laser radar built-in installation device according to any one of claims 2 to 8, wherein: The mounting bracket is provided with a first light shield connected to the substrate. The first light shield is arranged on the second surface and protrudes in a direction away from the second surface. The first light shield is arranged to form a light-transmitting channel. The detection signals emitted and received by the laser radar pass through the vehicle window glass through the light-transmitting channel.

12. The laser radar built-in installation device according to claim 11, wherein: The laser radar built-in installation device also includes a heating element, and the heating element is arranged on the first light shield.

13. The laser radar built-in installation device according to claim 11 or 12, wherein: The first light shield includes a light shielding bottom plate, and an angle between the light shielding bottom plate and the second surface is smaller than an angle between the mounting surface and the second surface.

14. The laser radar built-in installation device according to any one of claims 1 to 13, wherein: The laser radar built-in installation device also includes a shielding cover, which is fixedly installed on the inner side of the vehicle window glass, and is used to cover the laser radar and the installation bracket.

15. The laser radar built-in installation device according to claim 14, wherein: An electronic display screen is arranged on the outer wall of the shielding cover.

16. The laser radar built-in installation device according to claim 14 or 15, wherein: The laser radar built-in installation device also includes a connecting seat, which is used to install a rearview mirror.

17. The laser radar built-in installation device according to any one of claims 1 to 16, wherein: The minimum distance between the signal transmitting end of the laser radar and the inner side of the vehicle window glass is less than or equal to 8 mm.

18. The laser radar built-in installation device according to any one of claims 1 to 17, wherein: The laser radar built-in installation device also includes a camera bracket and / or a rain sensor bracket connected to the mounting bracket.

19. A vehicle, comprising a vehicle window glass, a laser radar and a laser radar built-in mounting device as described in any one of claims 1 to 18, wherein the substrate is fixedly connected to the inner side of the vehicle window glass, the laser radar is mounted on the mounting surface of the support, the laser radar faces the vehicle window glass, and the detection signals emitted and received by the laser radar pass through the vehicle window glass.

20. The vehicle according to claim 19, further comprising a camera and / or a rain sensor, wherein the camera is mounted on the built-in mounting device of the laser radar and / or the rain sensor is mounted on the built-in mounting device of the laser radar.

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