Laser radar and shell assembly thereof

Abstract

The utility model provides a laser radar and a shell assembly thereof, the laser radar comprises an emitter and a receiver, the emitter emits detection light, and the receiver receives echo light generated after the detection light is reflected by an object; the housing assembly comprises a window, and the window is suitable for enabling the detection light to be emitted to the external space of the laser radar, and is also suitable for enabling the echo light to be emitted to the internal space of the laser radar. The flange is suitable for being in contact with the surface of the side, facing the inner space of the laser radar, of the window. The housing assembly can effectively improve the sealing performance of a carrier after the installation of the laser radar, facilitates the suppression and even elimination of wind noise, does not increase the size of the laser radar too much, and facilitates the control of the overall height of the laser radar.

Description

Technical Field

[0001] The present disclosure relates to the field of laser radar, and in particular to a laser radar and a housing assembly thereof. Background Art

[0002] LiDAR is a ranging sensor with the characteristics of long detection distance, high resolution and little environmental interference. It is widely used in intelligent robots, drones, unmanned driving and other fields.

[0003] With the rise of assisted and autonomous driving technologies, LiDAR (LiDAR) is gaining increasing attention as a key detection component. LiDAR uses laser beams to detect information such as the position and speed of objects. Currently, LiDAR is typically installed outside the vehicle cockpit, such as on the roof or side of the vehicle. To ensure proper operation, LiDAR systems typically require waterproofing and sealing. Utility Model Content

[0004] The problem solved by the present disclosure is how to improve the wind noise resistance capability of laser radar.

[0005] To solve the above problems, the present disclosure provides a shell assembly of a laser radar, wherein the laser radar includes a transmitter and a receiver, wherein the transmitter emits detection light, and the receiver receives echo light generated after the detection light is reflected by an object; the shell assembly includes: a window, wherein the window is suitable for allowing the detection light to be emitted to the external space of the laser radar, and the window is also suitable for allowing the echo light to be incident on the internal space of the laser radar; and a flange, wherein the flange is suitable for contacting a side surface of the window facing the internal space of the laser radar.

[0006] Optionally, when the laser radar is installed on a carrier, the window is exposed from the mounting hole of the carrier; and the side surface of the flange facing the mounting hole of the carrier is in contact with the inner wall of the carrier through a sealing ring.

[0007] Optionally, the sealing ring is made of foam.

[0008] Optionally, the flange includes a limiting rib, and the limiting rib is located on the surface of the flange facing the external space of the laser radar.

[0009] Optionally, each edge of the window has at least one limiting rib.

[0010] Optionally, at least one edge of the window has at least two limiting ribs.

[0011] Optionally, the flange includes a supporting portion, the supporting portion includes a supporting surface and an outer side surface, wherein the supporting surface faces the external space of the laser radar, and the outer side surface is connected to the supporting surface and forms a preset angle with the supporting surface; the limiting rib protrudes from the outer side surface.

[0012] Optionally, the limiting rib is a wedge-shaped limiting rib.

[0013] Optionally, when the laser radar is installed on a carrier, at least part of the wedge-shaped surface of the limiting rib contacts the inner wall of the mounting hole of the carrier, so that the distance between the geometric center of the window and the geometric center of the mounting hole is less than a preset distance threshold.

[0014] Optionally, it also includes: a shell, the shell and the window are fixedly connected to form an internal space of the laser radar; the flange is connected to the shell.

[0015] Optionally, the flange and the housing are an integral structure.

[0016] Optionally, the flange protrudes from the outer surface of the housing facing away from the internal space of the laser radar.

[0017] Optionally, the flange includes an abutment portion, which is located between the shell and the window, and protrudes from the outer surface of the shell facing away from the inner space of the laser radar in a direction pointing from the inner space of the laser radar to the outer space.

[0018] Optionally, the shell includes an upper cover and a base, the flange and the upper cover are an integral structure, and the flange further includes: an extension part, the extension direction of the extension part is toward the inside of the laser radar, and the extension part is in contact with the base.

[0019] Correspondingly, the present disclosure also provides a laser radar, including: a transmitter, which is suitable for emitting detection light; a receiver, which is suitable for receiving echo light generated after the detection light is reflected by an object; a shell assembly, which is suitable for forming an internal space of the laser radar to accommodate the transmitter and receiver, and the shell assembly includes: a window, through which the detection light is emitted to the outside of the laser radar, and the echo light is incident on the receiver through the window; a flange, which is suitable for contacting the side surface of the window facing the inside of the laser radar.

[0020] Optionally, the shell assembly further includes: an outer shell, the outer shell and the window are fixedly connected to form an internal space of the laser radar; the transmitter and the receiver are located in the internal space.

[0021] Compared with the prior art, the technical solution disclosed in this disclosure has the following advantages:

[0022] In the disclosed technical solution, the laser radar housing assembly includes a flange that contacts a surface of the viewing window facing the interior space of the laser radar. The flange protrudes from the outer edge of the viewing window and can shield the gap between the viewing window and the carrier, effectively improving the seal between the carrier and the laser radar after installation, which helps suppress or even eliminate wind noise. Furthermore, by providing a flange in the laser radar housing assembly to suppress wind noise, the laser radar's volume will not be excessively increased, which helps control the overall height of the laser radar.

[0023] In an optional solution disclosed herein, the flange includes retaining ribs located on the surface of the flange facing the exterior of the lidar. During assembly, the retaining ribs first contact the carrier, effectively ensuring a uniform gap around the viewing window. The presence of these retaining ribs can effectively reduce assembly difficulty and improve assembly precision.

[0024] In an optional solution disclosed herein, the flange and the upper cover of the housing are integrally connected, effectively reducing assembly surface differences, enabling separation of the window molding surface from the mounting point, enabling platform integration for multiple vehicle models, increasing interchangeability, and reducing the number of molds required, thereby lowering manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work. The drawings are used to provide a further understanding of the present disclosure and constitute part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. In the drawings:

[0026] Figure 1 1 is a schematic diagram of the three-dimensional structure of some embodiments of the housing assembly of the laser radar disclosed herein;

[0027] Figure 2 1 is a schematic diagram of the cross-sectional structure of some embodiments of the housing assembly of the laser radar disclosed herein after assembly;

[0028] Figure 3 1 is a schematic diagram of the cross-sectional structure of some embodiments of the housing assembly of the laser radar disclosed herein after assembly;

[0029] Figure 4 1 is a schematic diagram of the cross-sectional structure of some embodiments of the housing assembly of the laser radar disclosed herein after assembly;

[0030] Figure 5 It is a schematic diagram of the cross-sectional structure of some embodiments of the shell assembly of the laser radar disclosed in the present invention. DETAILED DESCRIPTION

[0031] Hereinafter, certain exemplary embodiments are described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and description are to be considered as illustrative in nature and not restrictive.

[0032] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present disclosure. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present disclosure, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0033] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or interconnected connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0034] In the present disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] The disclosure below provides many different embodiments or examples for realizing different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0036] As can be seen from the background technology, the existing laser radar needs to further improve its ability to resist wind noise.

[0037] In order to solve the technical problem, the present disclosure provides a shell assembly of a laser radar, wherein the laser radar includes a transmitter and a receiver, the transmitter emits detection light, and the receiver receives echo light generated after the detection light is reflected by an object; the shell assembly includes: a window, which is suitable for allowing the detection light to be emitted to the external space of the laser radar, and the window is also suitable for allowing the echo light to be incident on the internal space of the laser radar; a flange, which is suitable for contacting the side surface of the window facing the internal space of the laser radar.

[0038] The laser radar housing assembly includes a flange that contacts the surface of the window facing the interior of the laser radar. The flange protrudes from the outer edge of the window and can shield the gap between the window and the carrier, effectively improving the seal between the carrier and the laser radar after installation, which helps to suppress or even eliminate wind noise. Furthermore, by providing a flange in the laser radar housing assembly to suppress wind noise, the laser radar's volume will not be significantly increased, which helps to control the overall height of the laser radar.

[0039] In order to make the above-mentioned objects, features and advantages of the present disclosure more obvious and easy to understand, specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0040] refer to Figures 1 to 5 ,in Figure 1 1 is a schematic diagram of the three-dimensional structure of some embodiments of the housing assembly of the laser radar disclosed herein; Figure 2 2 is a schematic diagram of the structure of the housing assembly of some embodiments of the laser radar disclosed herein after assembly; Figure 3 1 is a schematic cross-sectional view of some embodiments of the housing assembly of the laser radar disclosed herein; Figure 4 1 is a schematic cross-sectional view of some embodiments of the housing assembly of the laser radar disclosed herein; Figure 5 It is a schematic diagram of the cross-sectional structure of some embodiments of the shell assembly of the laser radar disclosed in the present invention.

[0041] The housing assembly 100 is a housing assembly of a laser radar. The laser radar includes a transmitter and a receiver. The transmitter transmits detection light. The receiver receives the echo light generated by the detection light reflected by an object.

[0042] The transmitter includes at least one laser. The laser may include one or more of vertical-cavity surface-emitting lasers (VCSELs), edge-emitting lasers (EELs), distributed feedback lasers (DFBs), fiber lasers, etc. The receiver includes at least one detector. The detector may include one or more of single-photon avalanche diodes (SPADs), avalanche photodiodes (APDs), silicon photomultipliers (SiPMs), etc.

[0043] The housing assembly includes a window adapted to allow the detection light to be emitted to the exterior of the laser radar and the return light to be incident to the interior of the laser radar. The housing assembly also includes a flange adapted to contact a surface of the window facing the interior of the laser radar.

[0044] The flange protrudes from the outer edge of the window, thereby shielding the gap between the window and the carrier (not shown in the figure), effectively improving the sealing of the carrier after the laser radar is installed, which is beneficial to suppressing or even eliminating wind noise; and by setting the flange to suppress wind noise, the overall size of the laser radar will not be increased too much, which is beneficial to controlling the overall height of the laser radar.

[0045] The flange protrudes from the outer edge of the window, and the protruding portion of the flange can abut against the carrier, leaving a gap between the window and the carrier, thereby preventing the window from being subjected to stress due to contact with the carrier and avoiding problems such as stress cracking of the window.

[0046] like Figure 1 In some of the embodiments shown, at the edge of the window 110 , the flange 120 surrounds the window 110 ; along the direction facing away from the internal space of the laser radar, the flange 120 protrudes from the edge of the window 110 .

[0047] In some embodiments of the present disclosure, when the laser radar is installed on a carrier, the window is exposed from the mounting hole of the carrier; the side surface of the flange facing the mounting hole of the carrier is in contact with the inner wall of the carrier through a sealing ring.

[0048] The flange is connected to the carrier via a sealing ring. This ring wraps around the edge of the flange, filling the gap between the flange and the interior of the carrier. This further improves the seal between the carrier and the LiDAR after installation, helping to further control wind noise. Furthermore, the addition of a sealing ring to improve sealing does not further increase the overall size of the LiDAR, thus improving sealing without increasing the overall size of the LiDAR.

[0049] Specific as Figure 2 and Figure 3 As shown, the laser radar is a vehicle-mounted laser radar, and the vehicle on which the laser radar is mounted is a vehicle. A mounting hole is provided on the vehicle's exterior panel 101. A window 110 is located within the mounting hole and protrudes from it. The surface of the flange 120 facing the mounting hole abuts against the inner wall of the exterior panel 101 via a sealing ring 102.

[0050] In some embodiments, the sealing ring is made of foam. In other embodiments of the present disclosure, the sealing ring may be made of other materials that can fill gaps or have elasticity.

[0051] In some embodiments of the present disclosure, the flange includes a supporting portion, the supporting portion includes a supporting surface, and the supporting surface faces the external space of the laser radar. The supporting portion is suitable for contacting the window to secure the window, and the supporting surface is suitable for contacting a side surface of the window facing the internal space of the laser radar to ensure contact between the window and the supporting portion.

[0052] The flange also includes an abutment portion having an abutment surface facing the inner wall of the carrier. The abutment portion is adapted to abut against the inner wall of the carrier and can shield the gap between the viewing window and the carrier, thereby improving the sealing of the carrier after the LiDAR is installed and suppressing or even eliminating wind noise.

[0053] Specific as Figures 3 to 5 As shown, the flange 120 has a supporting portion 121 in an annular shape. The supporting surface 121a of the supporting portion 121 contacts the edge of the surface of the window 110 facing the interior of the laser radar, thereby achieving the connection between the window 110 and the flange 120.

[0054] The flange 120 also has an abutment portion 122. The abutment portion 122 is annular and surrounds the viewing window 110. The abutment portion 122 is located on the side of the abutment portion 121 away from the viewing window 110. The radial dimension of the abutment portion 122 is larger than the radial dimension of the abutment portion 121, and the abutment portion 122 protrudes from the radial outer surface of the abutment portion 121. The radial outer end of the abutment portion 122 abuts against the inner wall of the exterior outer panel 101 through the sealing ring 102. The abutment surface 122a and the abutment surface 122b (such as Figure 3 As shown in FIG, 1 , the flange contacts the sealing ring 102. The radial direction may be the direction from the geometric center of the flange to the edge of the flange.

[0055] In some embodiments of the present disclosure, the radial size of the flange is determined according to the size of the window and the carrier mounting structure. When the laser radar is applied to a vehicle, the radial size of the flange is determined according to the radial size of the window and the gap between the window and the vehicle exterior panel. The radial size of the flange can ensure the wind noise protection effect without increasing the total height of the vehicle exterior too much. In some embodiments, the radial size of the abutment portion 122 of the flange is in the range of 3 to 8 mm. For example, the radial size of the abutment portion 122 of the flange can be in the range of 5 to 6 mm.

[0056] In some embodiments of the present disclosure, the flange includes a retaining rib located on a surface of the flange facing the exterior of the laser radar. The retaining rib is adapted to define the position of the window within the mounting hole, thereby reducing assembly difficulty and improving assembly accuracy.

[0057] like Figure 1 In some embodiments shown, the flange 120 has a plurality of limiting ribs 123 , and the plurality of limiting ribs 123 are distributed on the edge of the window 110 along a direction surrounding the flange 120 .

[0058] In some embodiments, each edge of the window has at least one limiting rib. Providing the limiting rib on each edge of the window can effectively ensure that the window is located in the center of the mounting hole and ensure that the gap area around the window is uniform.

[0059] In some exemplary embodiments, at least two of the limiting ribs are provided along at least one edge of the window. The at least two limiting ribs are distributed along the edge of the window, effectively ensuring uniformity of the gap between the window and the carrier in that direction.

[0060] Specific as Figure 1 In some embodiments shown, the edge of the window 110 includes four sides, wherein three of the limiting ribs 123 are provided on the longer side of the window 110 and one of the limiting ribs 123 is provided on the shorter side of the window 110.

[0061] In some embodiments, the abutting portion of the flange has an outer side surface, the outer side surface is connected to the abutting surface and forms a preset angle with the abutting surface; the limiting rib protrudes from the outer side surface.

[0062] Specific as Figure 1 As shown, the abutting portion 121 of the flange 120 has an outer side surface 121b. There is an obtuse angle between the outer side surface 121b and the abutting surface 122a. In other embodiments, the outer side surface may also form an acute angle or a right angle with the abutting surface. For example, the preset angle may be in the range of 95° to 145°. In some embodiments, the preset angle may be in the range of 95 to 120°. The limiting ribs 123 are distributed on the outer side surface 121b of the abutting portion 121, protruding from the outer side surface 121b of the abutting portion 121, and the outer side surface 121b of the abutting portion 121 is exposed between adjacent limiting ribs 123.

[0063] In some embodiments, the limiting rib is a wedge-shaped limiting rib. The cross-sectional shape of the limiting rib is wedge-shaped. Specifically, the thickness of the limiting rib at one end of the limiting rib near the external space of the laser radar is less than the thickness of the limiting rib at one end of the limiting rib near the internal space of the laser radar. For example, the thickness of the limiting rib gradually increases along the direction from the external space of the laser radar to the internal space of the laser radar, where the thickness of the limiting rib is the dimension of the limiting rib in a direction perpendicular to the outer side surface of the abutment portion.

[0064] In some specific embodiments, when the laser radar is mounted on a carrier, at least a portion of the wedge-shaped surface of the limiting rib contacts the inner wall of the carrier's mounting hole, ensuring that the distance between the geometric center of the viewing window and the geometric center of the mounting hole is less than a preset distance threshold. This contact between the wedge-shaped surface of the limiting rib and the interior of the carrier's mounting hole effectively ensures a uniform clearance around the viewing window, thereby reducing assembly difficulty and improving assembly accuracy.

[0065] Specific as Figures 3 to 5In some embodiments shown, the limiting rib 123 has a wedge-shaped surface 123a. The wedge-shaped surface 123a forms a preset angle with the outer side surface of the abutting portion in the flange 120. Figure 4 As shown, the wedge-shaped surface 123 a of the limiting rib 123 and the outer decorative panel 101 of the carrier form a first gap E. A second gap F is formed between the viewing window 110 and the outer decorative panel 101 of the carrier.

[0066] In some embodiments, the first gap E is in the range of 0 to 0.5 mm. Figure 3 As shown, the wedge-shaped surface 123a of the limiting rib 123 can contact the exterior panel 101. Assembly errors between the laser radar and the carrier may exist, and the wedge-shaped surface 123a of the limiting rib 123 can also have a gap of 0 to 0.5 mm with the exterior panel 101. For example, the wedge-shaped surface 123a of the limiting rib 123 can partially contact the exterior panel 101, while a gap exists between the wedge-shaped surface 123a of the limiting rib 123 and the exterior panel 101.

[0067] In some embodiments, the second gap F is greater than the first gap E. During assembly along the X-direction, the wedge-shaped surface 123a of the limiting rib 123 first contacts the exterior panel 101. Because multiple wedge-shaped limiting ribs are provided on the edge of the window, the contact between the multiple wedge-shaped limiting ribs and the exterior panel 101 can ensure that the distance between the geometric center of the window and the geometric center of the mounting hole is less than a preset distance threshold. For example, the preset threshold can be any value within the range of 0.5 to 6 mm. For example, the threshold can be a value such as 5 mm, 4 mm, 3 mm, 2 mm, or 1 mm.

[0068] The second gap F is larger than the first gap E. During assembly along the X-direction, the wedge-shaped surface 123a of the limiting rib 123 first contacts the exterior panel 101. This also prevents contact between the window 110 and the exterior panel 101, preventing cracking of the window 110 due to contact stress, thereby improving the safety and reliability of the LiDAR.

[0069] In some embodiments of the present disclosure, the housing assembly further comprises: an outer shell, which is fixedly connected to the viewing window to form an interior space of the laser radar. The flange is connected to the outer shell. The outer shell is located on a side of the flange away from the viewing window. The outer shell, the viewing window, and the flange cooperate to enclose the interior space of the laser radar to accommodate the various components of the laser radar. Specifically, the outer shell comprises an upper cover and a base.

[0070] Continue to refer Figures 1 to 5The housing assembly's outer shell 130 is rectangular, with the abutment portion 122 of the flange 120 positioned between the outer shell 130 and the viewing window 110. The side of the outer shell 130 proximate to the viewing window 110 includes a viewing window. For example, the side of the outer shell 130 proximate to the viewing window 110 is open, and the flange 120 is connected to the open side of the outer shell 130. The open structure of the outer shell allows the probe light and the return light to pass through the viewing window 110.

[0071] In some embodiments, the flange and the housing are integrally connected, effectively reducing assembly, improving assembly precision, and lowering manufacturing costs. Furthermore, the flange shields the gap between the window and the carrier, separating the window's design from the mounting point. This overcomes the limitations imposed by the mounting point on the carrier on the window's design, enabling platform-based design for multiple vehicle models and increasing interchangeability. This reduces the number of molds required and reduces costs.

[0072] Specific as Figures 3 to 5 As shown, the housing 130 includes an upper cover 131 and a base 132. The upper cover 131 and the base 132 can be fixedly connected by a connector. In some embodiments, the flange 120 and the upper cover 131 are an integral structure.

[0073] In some embodiments, the flange protrudes from an outer surface of the housing facing away from the interior space of the laser radar. For example, in a vertical direction, the flange protrudes from an outer surface of the housing facing away from the interior space of the laser radar. In a horizontal direction, the abutment portion protrudes from an outer surface of the housing facing away from the interior space of the laser radar.

[0074] In some embodiments, the flange further includes an extension portion, the extension portion extending toward the interior of the laser radar, the extension portion contacting the base, and the extension portion being adapted to improve the stability of the connection between the flange and the housing.

[0075] like Figures 3 to 5 As shown, the extension portion 124 of the flange 120 is located on the surface of the base 132 facing the inner space of the laser radar. In the vertical direction, the surface of the extension portion 124 facing the outer space of the laser radar contacts the surface of the base 132 facing the inner space of the laser radar.

[0076] In some embodiments, the extension 124 and the base 132 can be connected by a connector. Alternatively, the extension 124 and the base 132 can be connected by cooperating components, such as a slot on the extension 124 and a buckle on the base 132, where the slot and buckle cooperate to secure the extension 124 and the base 132. The extension 124 and the base 132 can also be fixedly connected by an adhesive.

[0077] Correspondingly, the present disclosure also provides a laser radar.

[0078] The laser radar comprises: a transmitter, which is suitable for transmitting detection light; a receiver, which is suitable for receiving echo light generated after the detection light is reflected by an object; a shell component (such as Figure 1 As shown), it is suitable for forming the internal space of the laser radar to accommodate the transmitter and the receiver, and the shell assembly includes: a window 110, through which the detection light is emitted to the outside of the laser radar, and the echo light is incident on the receiver through the window 110; a flange 120, which is suitable for contacting the side surface of the window 110 facing the inside of the laser radar.

[0079] The flange 120 protrusion of the shell assembly and the outer edge of the window 120 serve to shield the gap around the window 110, thereby effectively improving the sealing of the laser radar after installation and effectively suppressing or even eliminating wind noise; and the method of suppressing wind noise through the flange 120 will not increase the volume of the laser radar too much, which is conducive to controlling the overall height of the laser radar.

[0080] In some embodiments of the present disclosure, the shell assembly further includes: an outer shell 130, wherein the outer shell 130 and the window 110 are fixedly connected to form an internal space of the laser radar; the transmitter and the receiver are located in the internal space.

[0081] It should be understood that the division of the modules and units in the above system is only a division of logical functions. In actual implementation, there may be other division methods. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the modules and units in the device can be implemented in the form of a processor calling software; for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or realize the functions of the modules and units of the device. The processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the system or a memory outside the system. Alternatively, the modules and units in the device can be implemented in the form of hardware circuits, and the functions of some or all modules can be realized by designing the hardware circuits. The hardware circuit can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application specific integrated circuit (ASIC), and the functions of some or all of the above modules are realized by designing the logical relationship between the components in the circuit. For another example, in another implementation, the hardware circuit can be implemented by a programmable logic device (PLD), which can include multiple logic gate circuits. The logical relationship between the logic gate circuits is configured through a configuration file, thereby realizing the functions of some or all of the above modules. All modules of the above system can be implemented in the form of a processor calling a program, or in the form of a hardware circuit, or in part by a processor calling a program, and the rest by a hardware circuit.

[0082] In summary, the laser radar housing assembly includes a flange that contacts the surface of the window facing the interior space of the laser radar. The flange protrudes from the outer edge of the window and can shield the gap between the window and the carrier, effectively improving the sealing of the carrier after the laser radar is installed, which helps to suppress or even eliminate wind noise. Furthermore, by providing a flange in the laser radar housing assembly to suppress wind noise, the laser radar's volume will not be greatly increased, which helps to control the overall height of the laser radar.

[0083] Furthermore, the flange includes retaining ribs located on the surface of the flange facing the exterior of the LiDAR. During assembly, these retaining ribs make contact first, effectively ensuring a uniform gap around the viewing window. The presence of these retaining ribs can effectively reduce assembly difficulty and improve assembly precision.

[0084] Furthermore, the flange and the upper cover of the housing are integrally connected, effectively reducing assembly surface differences and separating the window molding surface from the mounting point. This allows for platform integration across multiple vehicle models, increasing interchangeability and reducing the number of molds required, thereby lowering manufacturing costs.

[0085] Although the present disclosure is disclosed as above, the present disclosure is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope defined by the claims.

Claims

1. A housing assembly of a laser radar, characterized in that: The laser radar includes a transmitter and a receiver, wherein the transmitter transmits detection light and the receiver receives echo light generated after the detection light is reflected by an object; the housing assembly includes: a window, wherein the window is suitable for allowing the detection light to be emitted to the external space of the laser radar, and the window is also suitable for allowing the echo light to be incident to the internal space of the laser radar; The flange is suitable for contacting a side surface of the window facing the internal space of the laser radar.

2. The housing assembly according to claim 1, wherein: When the laser radar is mounted on a carrier, the window is exposed from the mounting hole of the carrier; A side surface of the flange facing the mounting hole of the carrier abuts against the inner wall of the carrier via a sealing ring.

3. The housing assembly according to claim 2, wherein: The sealing ring is made of foam.

4. The housing assembly according to claim 1, wherein: The flange includes a limiting rib, and the limiting rib is located on the surface of the flange facing the external space of the laser radar.

5. The housing assembly according to claim 4, wherein: Each edge of the window has at least one limiting rib.

6. The housing assembly according to claim 5, wherein: At least one side of the window has at least two limiting ribs.

7. The housing assembly according to claim 5, wherein: The flange includes a supporting portion, the supporting portion includes a supporting surface and an outer side surface, wherein the supporting surface faces the external space of the laser radar, and the outer side surface is connected to the supporting surface and forms a preset angle with the supporting surface; The limiting rib protrudes from the outer side surface.

8. The housing assembly according to claim 5, wherein: The limiting ribs are wedge-shaped limiting ribs.

9. The housing assembly according to claim 8, wherein: When the laser radar is installed on a carrier, at least part of the wedge-shaped surface of the limiting rib contacts the inner wall of the mounting hole of the carrier, so that the distance between the geometric center of the window and the geometric center of the mounting hole is less than a preset distance threshold.

10. The housing assembly according to claim 1, wherein: Also includes: A housing, wherein the housing and the window are fixedly connected to form an internal space of the laser radar; The flange is connected to the housing.

11. The housing assembly according to claim 10, wherein: The flange and the housing are an integral structure.

12. The housing assembly according to claim 10, wherein: The flange protrudes from the outer surface of the housing facing away from the inner space of the laser radar.

13. The housing assembly according to claim 12, wherein: The flange includes an abutment portion, which is located between the shell and the window, and protrudes from the outer surface of the shell facing away from the inner space of the laser radar in a direction pointing from the inner space of the laser radar to the outer space.

14. The housing assembly according to claim 12, wherein: The shell includes an upper cover and a base, the flange and the upper cover are an integral structure, and the flange also includes: an extension part, the extension direction of the extension part is toward the inside of the laser radar, and the extension part is in contact with the base.

15. A laser radar, characterized in that: include: an emitter adapted to emit detection light; a receiver adapted to receive echo light generated after the detection light is reflected by an object; a housing assembly, adapted to form an internal space of the laser radar to accommodate the transmitter and receiver, the housing assembly comprising: a window, through which the detection light is emitted to the outside of the laser radar, and through which the return light is incident on the receiver; The flange is suitable for contacting the surface of the window facing the interior of the laser radar.

16. The laser radar according to claim 15, wherein: The housing assembly further includes: a shell, the shell and the window are fixedly connected to form an internal space of the laser radar; The transmitter and the receiver are located within the interior space.

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