Laser radar cover plate, laser radar device and vehicle
By setting light-transmitting barrier ribs on the translucent plate of the lidar cover plate to separate the emission and reception areas, the problem of inaccurate measurement results of the lidar is solved, and the accuracy of the device is improved.
Patent Information
- Application Number
- CN202420207626.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-01-26
AI Technical Summary
The measurement results of the lidar are inaccurate, mainly because the laser light emitted by the transmitter is easily directly received by the receiver after being reflected by the lidar cover, resulting in misjudgment.
A lidar cover plate is designed, and its light-transmitting plate includes a transmitting area and a receiving area, and is provided with light-impermeable barrier ribs between the two. The barrier ribs can separate the transmitting area and the receiving area, reducing or avoiding the interfering of the light beams.
Through the design of the barrier ribs, the interfereence between the light beams in the transmitting area and the receiving area is reduced, the accuracy of the use of the lidar device is improved, and the misjudgment of the measurement results is avoided.
Smart Images

Figure CN222618774U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser radar, and in particular to a laser radar cover, a laser radar device and a vehicle. Background Art
[0002] In the related technology, in order to realize functions such as advanced assistance or automatic driving of vehicles, vehicles are generally equipped with laser radars, which include a transmitter and a receiver. The laser emitted by the transmitter can be reflected back to the receiver after irradiating the measured object, thereby realizing the ranging or exploration functions of the laser radar. However, the laser emitted by the transmitter is easily directly received by the receiver after being reflected by the laser radar cover, resulting in misjudgment of the laser radar, and then inaccurate measurement results of the laser radar. Therefore, there is room for improvement. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a laser radar cover, the light-transmitting plate of the laser radar cover includes a transmitting area and a receiving area, and an opaque barrier rib is provided between the transmitting area and the receiving area, and the barrier rib can separate the transmitting area from the receiving area, which can reduce or avoid the light beam of the transmitting area and the light beam of the receiving area from interfering with each other, thereby affecting the use effect of the laser radar device.
[0004] The utility model provides a laser radar device with the laser radar cover plate.
[0005] The utility model also proposes a vehicle with the laser radar device.
[0006] According to the laser radar cover plate of the embodiment of the first aspect of the utility model, the laser radar cover plate is used for the laser radar device and includes: a cover plate body, on which a window is provided; a light-transmitting plate, which covers the window and is an integrally formed part, and the light-transmitting plate includes an emitting area and a receiving area, the emitting area is opposite to the transmitter of the laser radar device, and the receiving area is opposite to the receiver of the laser radar device, and an opaque barrier rib is provided between the emitting area and the receiving area.
[0007] According to the laser radar cover plate of the embodiment of the utility model, the light-transmitting plate of the laser radar cover plate includes a transmitting area and a receiving area, and an opaque barrier rib is provided between the transmitting area and the receiving area. The barrier rib can separate the transmitting area from the receiving area, and can reduce or avoid the light beam in the transmitting area and the light beam in the receiving area from interfering with each other, thereby affecting the use effect of the laser radar device.
[0008] According to some embodiments of the utility model, the laser radar cover plate also includes an opaque peripheral partition, which is arranged on the cover plate body and surrounds the outer peripheral side of the window, and the peripheral partition and the partition rib are located on the same side of the cover plate body, and the partition rib is connected to the peripheral partition.
[0009] According to some embodiments of the present utility model, the barrier ribs and the peripheral barrier are integrally formed.
[0010] According to some embodiments of the present invention, the emitting area and the receiving area are arranged along a first direction, the barrier ribs extend along a second direction, the second direction is perpendicular to the first direction, and both ends of the barrier ribs along the second direction are connected to the peripheral barrier.
[0011] According to some embodiments of the present invention, the barrier ribs, the peripheral barrier and the cover plate body are integrally formed.
[0012] According to some embodiments of the present invention, the cover plate body is provided with reinforcing ribs, the reinforcing ribs and the peripheral baffle are located on the same side of the cover plate body, and the reinforcing ribs are located on the outer peripheral side of the peripheral baffle and connected to the peripheral baffle.
[0013] According to some embodiments of the utility model, the barrier rib is located on the inner side of the light-transmitting plate; or, a slot is provided on the light-transmitting plate, and the barrier rib is inserted into the slot.
[0014] According to some embodiments of the present invention, the light-transmitting plate is bonded to the cover plate body; and / or, there are two emitting areas, and the receiving area is located between the two emitting areas.
[0015] According to the laser radar device of the second aspect embodiment of the utility model, it includes: a shell, including a mounting shell and a laser radar cover according to the first aspect embodiment of the utility model; the mounting shell and the laser radar cover together define a accommodating cavity; a laser radar module is arranged in the accommodating cavity and includes a transmitter and a receiver.
[0016] According to the laser radar device of the embodiment of the utility model, by setting the above-mentioned laser radar cover, the light-transmitting plate of the laser radar cover includes a transmitting area and a receiving area, and an opaque barrier rib is provided between the transmitting area and the receiving area. The barrier rib can separate the transmitting area from the receiving area, which can reduce or avoid the light beam in the transmitting area and the light beam in the receiving area from interfering with each other, thereby affecting the use effect of the laser radar device.
[0017] The vehicle according to the third aspect of the present invention comprises: a vehicle body; and a laser radar device according to the second aspect of the present invention, the laser radar device being installed on the vehicle body.
[0018] According to the vehicle of the embodiment of the utility model, the above-mentioned laser radar device is set, and the laser radar device includes a laser radar cover plate. The light-transmitting plate of the laser radar cover plate includes a transmitting area and a receiving area, and an opaque barrier rib is provided between the transmitting area and the receiving area. The barrier rib can separate the transmitting area from the receiving area, which can reduce or avoid the light beam in the transmitting area and the light beam in the receiving area from interfering with each other, thereby affecting the use effect of the laser radar device.
[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0021] Figure 1 is a schematic diagram of a laser radar device according to some embodiments of the present utility model;
[0022] Figure 2 yes Figure 1 A schematic diagram of another perspective of the laser radar device;
[0023] Figure 3 yes Figure 1 A front view of a laser radar device;
[0024] Figure 4 yes Figure 3 Section view along line AA.
[0025] Reference numerals:
[0026] 100. Laser radar device;
[0027] 10. housing; 11. mounting housing; 12. accommodating chamber;
[0028] 20. LiDAR cover; 21. Cover body; 22. Window; 23. Partition ribs; 24. External partition; 25. Reinforcement ribs; 26. Connection holes; 27. Limiting holes. DETAILED DESCRIPTION
[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0030] The laser radar cover plate 20 according to an embodiment of the present utility model is described below with reference to the accompanying drawings.
[0031] Reference Figure 1-Figure 4 According to the laser radar cover 20 of the first embodiment of the utility model, the laser radar cover 20 is used for the laser radar device 100 and includes a cover body 21 and a light-transmitting plate. The cover body 21 is provided with a window 22. The light-transmitting plate covers the window 22 and is an integrally formed part, which can simplify the assembly process of the light-transmitting plate, facilitate the installation of the light-transmitting plate to the cover body 21, and the overall structural strength of the integrally formed head light plate is high. In addition, the light-transmitting plate covers the window 22, which can reduce or prevent external liquid or dust from entering the interior of the laser radar cover 20 through the window 22.
[0032] The light-transmitting plate includes an emitting area and a receiving area. The emitting area is opposite to the transmitter of the laser radar device 100, and the receiving area is opposite to the receiver of the laser radar device 100. The laser emitted by the transmitter can be reflected back to the receiver after irradiating the measured object, thereby realizing the ranging or exploration functions of the laser radar. An opaque barrier rib 23 is provided between the emitting area and the receiving area. The barrier rib 23 can separate the emitting area and the receiving area of the light-transmitting plate, which can reduce or avoid the laser emitted by the transmitter being directly received by the receiver after reflection, or the laser returning to the transmitter being reflected into the position of the transmitter, thereby affecting the reception of the receiver, etc., and can reduce or avoid the light beam in the emitting area and the light beam in the receiving area interfering with each other, thereby affecting the use effect of the laser radar device 100, which is beneficial to improving the use accuracy of the laser radar device 100.
[0033] According to the laser radar cover 20 of the embodiment of the utility model, the light-transmitting plate of the laser radar cover 20 includes a transmitting area and a receiving area, and an opaque barrier rib 23 is provided between the transmitting area and the receiving area. The barrier rib 23 can separate the transmitting area from the receiving area, and can reduce or avoid the light beam in the transmitting area and the light beam in the receiving area from interfering with each other, thereby affecting the use effect of the laser radar device 100.
[0034] Reference Figure 1-Figure 4According to some embodiments of the present invention, the laser radar cover 20 further includes an opaque peripheral baffle 24, which is disposed on the cover body 21 and surrounds the outer periphery of the window 22. The peripheral baffle 24 and the baffle rib 23 are located on the same side of the cover body 21, and the baffle rib 23 is connected to the peripheral baffle 24. The peripheral baffle 24 surrounds the outer periphery of the window 22, which can improve the structural strength of the laser radar cover 20 in the relevant area on the outer periphery of the window 22. At the same time, the baffle rib 23 and the peripheral baffle are located on the same side of the cover body 21 and are connected to the peripheral baffle 24, which can further improve the structural strength of the laser radar cover 20 in the relevant area on the outer periphery of the window 22.
[0035] Reference Figure 1-Figure 4 According to some embodiments of the present invention, the barrier ribs 23 and the peripheral barrier 24 are integrally formed. This simplifies the assembly process and reduces the difficulty of assembly. The integrally formed barrier ribs 23 and the peripheral barrier 24 have a high structural strength, which is beneficial to improving the overall structural strength of the laser radar cover 20.
[0036] Reference Figure 1-Figure 4 According to some embodiments of the utility model, the emitting area and the receiving area are arranged along the first direction (refer to the e1 direction of the attached figure), the barrier rib 23 extends along the second direction (refer to the e2 direction of the attached figure), the second direction is perpendicular to the first direction, and the two ends of the barrier rib 23 along the second direction are connected to the peripheral barrier 24. The emitting area and the receiving area are arranged along the first direction, the barrier rib 23 is located on the inner side of the light-transmitting plate and extends along the second direction, and the two ends of the barrier rib 23 along the second direction are connected to the peripheral barrier 24, so that the area formed by the peripheral barrier 24 and the barrier rib 23 can be adapted to the emitting area and the receiving area of the light-transmitting plate. At the same time, the barrier rib 23 extends along the second direction, and the second direction is perpendicular to the first direction, so that the shape of the barrier rib 23 is relatively simple, which can facilitate the processing and production of the barrier rib 23.
[0037] Reference Figure 1-Figure 4 According to some embodiments of the present invention, the barrier ribs 23, the peripheral barrier 24 and the cover plate body 21 are integrally formed. This simplifies the assembly process and reduces the difficulty of assembly. In addition, the integrally formed barrier ribs 23, the peripheral barrier 24 and the cover plate body 21 can improve the overall structural strength of the laser radar cover plate 20.
[0038] Reference Figure 1-Figure 4According to some embodiments of the utility model, the cover body 21 is provided with a reinforcing rib 25, the reinforcing rib 25 and the peripheral baffle 24 are located on the same side of the cover body 21, and the reinforcing rib 25 is located on the outer peripheral side of the peripheral baffle 24 and connected to the peripheral baffle 24. By providing the reinforcing rib 25 on the outer peripheral side of the peripheral baffle 24 and connecting the reinforcing rib 25 to the peripheral baffle 24, the structural strength of the peripheral baffle 24 can be greatly improved, and the deformation of the peripheral baffle 24 of the laser radar cover 20 when the laser radar cover 20 is impacted by external force can be reduced or avoided.
[0039] Reference Figure 1-Figure 4 According to some embodiments of the utility model, the barrier rib 23 is located on the inner side of the light-transmitting plate. By setting the barrier rib 23, the barrier rib 23 can separate the emitting area from the receiving area. At the same time, the barrier rib 23 is located on the inner side of the light-transmitting plate, and the barrier rib 23 can support the light-transmitting plate.
[0040] Reference Figure 1-Figure 4 According to some embodiments of the utility model, a slot is provided on the light-transmitting plate, and the barrier rib 23 is inserted into the slot. By providing a slot on the light-transmitting plate and inserting the barrier rib 23 into the slot, a positioning function can be played during the assembly process of the light-transmitting plate and the cover plate body 21, so that the light-transmitting plate can be installed more accurately.
[0041] Reference Figure 1-Figure 4 According to some embodiments of the present invention, the light-transmitting plate is bonded to the cover plate body 21. The connection method is relatively simple, and at the same time, the connection between the light-transmitting plate and the cover plate body 21 can be made relatively stable.
[0042] Reference Figure 1-Figure 4 According to some embodiments of the present invention, there are two emitting areas, and the receiving area is located between the two emitting areas. The two emitting areas of the light-transmitting plate correspond one-to-one to the two emitters of the laser radar device 100, and the receiver of the laser radar device 100 corresponds to the receiving area of the light-transmitting plate and is located between the two emitters. The lasers emitted by the two emitters can be reflected back to the receiver after irradiating the measured object and are received by the receiver.
[0043] Reference Figure 1-Figure 4 According to some embodiments of the utility model, the light-transmitting plate is bonded to the cover plate body 21, there are two emission areas, and the receiving area is located between the two emission areas. The light-transmitting plate is bonded to the cover plate body 21, and the bonding method is relatively simple. In addition, there are two emission areas, and the receiving area is located between the two emission areas. A barrier rib 23 is respectively provided between the two emission areas and the receiving area. The two barrier ribs 23 can provide a larger bonding area for the light-transmitting plate, so that the light-transmitting plate and the cover plate body 21 are connected more stably.
[0044] Reference Figure 1-Figure 4According to the laser radar device 100 of the second embodiment of the utility model, it includes a housing 10 and a laser radar module. The housing 10 includes a mounting housing 11 and the above-mentioned laser radar cover 20. The mounting housing 11 and the laser radar cover 20 jointly define a housing cavity 12. The laser radar module is arranged in the housing cavity 12 and includes a transmitter and a receiver. The housing 10 includes a laser radar cover 20 and a mounting housing 11. A plurality of positioning holes are arranged on the laser radar cover 20. The corresponding positions of the mounting housing 11 are provided with mounting holes that are the same in number and correspond to the positioning holes of the laser radar cover 20. Fasteners are respectively inserted into the positioning holes of the laser radar cover 20 and the mounting holes of the mounting housing 11 to connect the laser radar cover 20 with the mounting housing 11.
[0045] For example, refer to Figure 2 There are four positioning holes on the laser radar cover 20, and four mounting holes which are the same in number and correspond one to one to the positioning holes of the laser radar cover 20 are arranged at corresponding positions of the mounting shell 11. The fasteners are respectively passed through the positioning holes of the laser radar cover 20 and the mounting holes of the mounting shell 11 to connect the laser radar cover 20 with the mounting shell 11. The connection method is relatively simple and the connection is relatively stable.
[0046] According to the laser radar device 100 of the embodiment of the utility model, by setting the above-mentioned laser radar cover 20, the light-transmitting plate of the laser radar cover 20 includes a transmitting area and a receiving area, and an opaque barrier rib 23 is provided between the transmitting area and the receiving area. The barrier rib 23 can separate the transmitting area from the receiving area, which can reduce or avoid the light beam in the transmitting area and the light beam in the receiving area from interfering with each other, thereby affecting the use effect of the laser radar device 100.
[0047] Reference Figure 1-Figure 4 According to the third aspect of the present utility model, the vehicle includes a vehicle body and the above-mentioned laser radar device 100, and the laser radar device 100 is installed on the vehicle body.
[0048] The vehicle body and the laser radar can be connected by fasteners. Figure 1, the housing 10 of the laser radar device 100 is symmetrically provided with 4 connection holes 26 and 2 limiting holes 27 along the first direction, and the corresponding positions of the vehicle body are provided with 4 connection columns and 2 limiting columns, which are the same in number and correspond to the connection holes 26 and mounting holes of the housing 10 of the laser radar device 100, respectively. The positioning pins are respectively provided through the limiting holes 27 of the housing 10 and the limiting columns of the vehicle body, which can play a positioning role in the process of assembling the laser radar device 100 to the vehicle body, and can make the installation position of the laser radar device 100 more accurate. The fasteners are respectively provided through the connection holes 26 of the housing 10 and the connection columns of the vehicle body and connect the laser radar device 100 to the vehicle body, and the connection method is relatively simple and the connection is relatively stable.
[0049] According to the vehicle of the embodiment of the utility model, by setting the above-mentioned laser radar device 100, the laser radar device 100 includes a laser radar cover 20, the light-transmitting plate of the laser radar cover 20 includes a transmitting area and a receiving area, and an opaque barrier rib 23 is provided between the transmitting area and the receiving area. The barrier rib 23 can separate the transmitting area from the receiving area, which can reduce or avoid the light beam in the transmitting area and the light beam in the receiving area from interfering with each other, thereby affecting the use effect of the laser radar device 100.
[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0051] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A laser radar cover plate, used for a laser radar device, characterized in that: include: A cover plate body, wherein a window is provided on the cover plate body; A light-transmitting plate, which covers the window and is an integrally formed part, comprises an emitting area and a receiving area, wherein the emitting area is opposite to the transmitter of the laser radar device, and the receiving area is opposite to the receiver of the laser radar device, and an opaque barrier rib is provided between the emitting area and the receiving area.
2. The laser radar cover according to claim 1, characterized in that: It also includes an opaque peripheral baffle, which is arranged on the cover body and surrounds the outer periphery of the window. The peripheral baffle and the baffle rib are located on the same side of the cover body, and the baffle rib is connected to the peripheral baffle.
3. The laser radar cover according to claim 2, characterized in that: The barrier ribs are integrally formed with the peripheral barrier.
4. The laser radar cover according to claim 2, characterized in that: The emitting area and the receiving area are arranged along a first direction, the barrier ribs extend along a second direction, the second direction is perpendicular to the first direction, and both ends of the barrier ribs along the second direction are connected to the peripheral barrier.
5. The laser radar cover according to claim 4, characterized in that: The barrier ribs, the peripheral barrier and the cover plate body are integrally formed.
6. The laser radar cover plate according to claim 2, characterized in that: The cover plate body is provided with a reinforcing rib, the reinforcing rib and the peripheral baffle are located on the same side of the cover plate body, and the reinforcing rib is located on the outer peripheral side of the peripheral baffle and is connected to the peripheral baffle.
7. The laser radar cover according to claim 1, characterized in that: The barrier ribs are located at the inner side of the light-transmitting plate; or, a slot is provided on the light-transmitting plate, and the barrier ribs are inserted into the slot.
8. The laser radar cover according to any one of claims 1 to 7, characterized in that: The light-transmitting plate is bonded to the cover plate body; and / or, there are two emitting areas, and the receiving area is located between the two emitting areas.
9. A laser radar device, characterized in that: include: The housing comprises a mounting shell and a laser radar cover according to any one of claims 1 to 8, wherein the mounting shell and the laser radar cover together define a receiving cavity; The laser radar module is arranged in the accommodating cavity and includes a transmitter and a receiver.
10. A vehicle, characterized in that: include: Car body; According to the laser radar device according to claim 9, the laser radar device is installed on the vehicle body.