Laser radar assembly used for self-driving automobile
By designing a protective shell and buffer plate for the lidar assembly, the problem of lidar being easily damaged is solved, achieving effective protection and convenient disassembly and cleaning of the lidar, thus ensuring the safety of autonomous vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-07
AI Technical Summary
Existing lidar is susceptible to damage from external factors such as rain, snow, dust, and high-speed airflow, which can affect the safety of autonomous vehicles.
A lidar assembly comprising a protective shell, an electric push rod, a movable plate, and a buffer plate was designed. The electric push rod drives the support plate to move, which, together with the protective shell and the movable plate, provides protection. The buffer plate and springs cushion the impact and prevent damage to the lidar.
It effectively protects the lidar from external environmental influences, ensuring the safety and reliability of autonomous vehicles, and facilitates the disassembly and cleaning of the lidar.
Smart Images
Figure CN224096012U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of LiDAR technology for autonomous vehicles, and specifically relates to a LiDAR component used in autonomous vehicles. Background Technology
[0002] Autonomous vehicles, also known as driverless cars, computer-driven cars, or wheeled mobile robots, are intelligent vehicles that achieve driverless operation through computer systems. They have been around for decades in the 20th century and have shown a trend toward practical application in the early 21st century. Autonomous vehicles rely on the collaborative efforts of artificial intelligence, computer vision, radar, monitoring devices, and global positioning systems to allow computers to automatically and safely operate motor vehicles without any active human intervention. LiDAR is the main detection component of autonomous vehicles, used to scan the surrounding environment of the vehicle and feed back environmental parameters to the onboard computer so that the onboard computer can make correct judgments based on the environmental parameters and ensure driving safety.
[0003] However, current lidar technology is generally directly exposed to the external environment, which is a very harsh working environment. It is easily affected by external rain, snow, dust and high-speed airflow, which makes lidar prone to damage and thus affects the safety of autonomous vehicles. Utility Model Content
[0004] The purpose of this invention is to provide a lidar component for use in autonomous vehicles, in order to solve the problem mentioned in the background art: However, existing lidar is generally directly exposed to the external environment, and the working environment is very harsh. It is easily affected by external rain, snow, dust and high-speed airflow, which makes the lidar prone to damage and thus affects the safety of autonomous vehicles.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective shell with openings on both the front and lower surfaces, and a laser radar body disposed within the protective shell. An electric push rod is installed on the rear side of the protective shell. A support plate is slidably installed inside the protective shell via a sliding assembly. The laser radar body is detachably mounted on the upper surface of the support plate via an installation assembly. The output shaft of the electric push rod extends through the protective shell and is fixedly connected to the support plate. Two U-shaped fixing plates are installed on the left and right sides of the inner wall of the protective shell. A buffer rod is slidably installed through the fixing plate. Buffer plates are provided on the left and right sides of the laser radar body. One end of the two buffer rods on the same side is fixedly connected to the buffer plate on the same side. A first spring is sleeved on the buffer rod, with both ends fixedly connected to the buffer plate and the fixing plate respectively. A movable plate is hinged to the front side of the protective shell.
[0006] By adopting the above solution, a protective shell, an electric push rod, a movable plate, and a buffer plate are set up. The electric push rod drives the support plate to move, which, together with the protective shell, wraps and protects the LiDAR main body. The movable plate, with its hinged installation, allows the LiDAR main body to be extended out of the protective shell and the movable plate to be opened at any time. The buffer plate and the first spring work together to cushion the impact on the protective shell, thereby preventing damage to the LiDAR main body and ensuring the safety of autonomous vehicles.
[0007] In the above scheme, it should be noted that the electric push rod is electrically connected to an external power source.
[0008] In a preferred embodiment, the mounting assembly includes two sets of mounting plates, with two mounting plates in each set. The two sets of mounting plates are respectively mounted on the left and right sides of the lidar body. Bolts are threaded onto the mounting plates, and the tail ends of the bolts are threadedly connected to the support plates.
[0009] By adopting the above solution, by setting up mounting plates and bolts, the bolt threads are fixed to the left and right sides of the lidar body using the mounting plates. Combined with the bolt thread installation, the lidar body is threadedly fixed to the support plate, which facilitates the disassembly of the lidar body at any time in the future.
[0010] In a preferred embodiment, the sliding assembly includes two sliding plates, which are respectively installed on the left and right sides of the support plate. Sliding grooves are provided on both the left and right sides of the inner wall of the protective shell, and one end of each sliding plate is slidably installed in the sliding groove.
[0011] By adopting the above scheme, a sliding plate is set up, and the sliding end of the sliding plate slides in the groove to provide sliding support for the support plate. This allows the support plate to move smoothly back and forth under the drive of the electric push rod, resulting in a simple structure.
[0012] In a preferred embodiment, two second springs are installed on the rear side of the inner wall of the protective shell, and an auxiliary plate is installed at the front end of each of the two second springs. The front side of the auxiliary plate is in contact with the rear side of the lidar body.
[0013] By adopting the above scheme, a second spring and an auxiliary plate are set up. The elasticity of the second spring is used to provide elastic support for the auxiliary plate. Combined with the function of the auxiliary plate, the distance between the two buffer plates is controlled after the laser radar body moves, thereby preventing the position of the two buffer plates from moving and hindering the laser radar body from resetting, thus making the operation convenient.
[0014] In a preferred embodiment, two telescopic rods are installed on the rear side of the inner wall of the protective shell. The two telescopic rods are located on the left and right sides of the output shaft of the electric push rod, respectively, and the telescopic shaft of the telescopic rod is fixedly connected to the support plate.
[0015] By adopting the above solution, by setting up a telescopic rod, the extension of the telescopic rod is used to strengthen the support on both sides of the support plate, thereby improving the stability and balance of the support plate and preventing the support plate from swaying when moving.
[0016] In a preferred embodiment, a second telescopic rod is provided inside the second spring and installed on the rear side of the inner wall of the protective shell. The telescopic shaft of the second telescopic rod is fixedly connected to the auxiliary plate. A baffle is installed at one end of the buffer rod. A square locking strip is installed on the lower surface of the laser radar body. A locking groove that mates with the locking strip is opened on the upper surface of the support plate. The bottom end of the locking strip extends into the locking groove.
[0017] By adopting the above scheme, by setting up a second telescopic rod, a baffle, and a locking strip, the second telescopic rod is used to fill the inside of the second spring, thereby improving the fullness of the second spring, preventing deformation of the second spring, and extending the service life of the second spring. Combined with the function of the baffle, one end of the buffer rod is sealed, and the locking strip is used to perform preliminary positioning of the laser radar body.
[0018] In a preferred embodiment, a cleaning brush plate is provided on the rear side of the movable plate, the bristles on the cleaning brush plate abutting against the front side of the lidar body, and a fixing component is provided on the front side of the cleaning brush plate.
[0019] By adopting the above solution, a cleaning brush plate is set up to facilitate the cleaning of dust on the front side of the lidar body, thereby preventing the lidar body from being covered with too much dust and thus preventing dust from affecting the use of the lidar body.
[0020] In a preferred embodiment, the fixing assembly includes two sets of fixing rods, with two fixing rods in each set. The front end of each fixing rod extends through a fixing hole opened on the front side of the movable plate. A through channel is opened on each fixing rod, and the same through plate is provided in the through channel of the two fixing rods in the same set.
[0021] By adopting the above solution, a fixing rod and a through plate are set up. The fixing rod, combined with the fixing hole, makes it easy to clamp the cleaning brush plate onto the movable plate, thereby fixing the position of the cleaning brush plate. Combined with the through plate, which passes through two through channels, the cleaning brush plate is further fixed and it is also convenient to disassemble the cleaning brush plate at any time in the future, making the operation convenient.
[0022] Compared with the prior art, the beneficial effects of this utility model are:
[0023] The lidar component used in this autonomous vehicle is equipped with a protective shell, an electric push rod, a movable plate, and a buffer plate. The electric push rod drives the support plate to move, which, together with the protective shell, wraps and protects the lidar body. The movable plate, with its hinged installation, allows the lidar body to be extended out of the protective shell at any time. The buffer plate and the first spring work together to cushion the impact on the protective shell, thereby preventing damage to the lidar body and ensuring the safety of the autonomous vehicle.
[0024] The lidar component used in this autonomous vehicle employs a second spring and an auxiliary plate. The elasticity of the second spring provides elastic support for the auxiliary plate. Combined with the function of the auxiliary plate, the distance between the two buffer plates is controlled after the lidar body moves, thereby preventing the position of the two buffer plates from moving and hindering the lidar body from resetting, thus making operation convenient. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the main cross-sectional structure of the protective shell of this utility model;
[0027] Figure 3 This is a side view sectional structural diagram of the protective shell of this utility model;
[0028] Figure 4 This is a schematic diagram of the rear view of the movable plate structure of this utility model.
[0029] In the diagram: 1. Protective shell; 2. LiDAR main body; 3. Movable plate; 4. Support plate; 5. Electric push rod; 6. Buffer plate; 7. Fixing plate; 8. Buffer rod; 9. First spring; 10. Mounting plate; 11. Bolt; 12. Slide plate; 13. Baffle; 14. Telescopic rod one; 15. Locking strip; 16. Auxiliary plate; 17. Second spring; 18. Telescopic rod two; 19. Cleaning brush plate; 20. Fixing rod; 21. Through plate. Detailed Implementation
[0030] Please see Figure 1-4This utility model provides a lidar component for use in autonomous vehicles, including a protective shell 1 with openings on both the front and lower surfaces, and a lidar body 2 disposed within the protective shell 1. An electric push rod 5 is mounted on the rear side of the protective shell 1, driving a support plate 4 to move. The support plate 4 is slidably mounted inside the protective shell 1 via a sliding assembly, supporting the lidar body 2. The lidar body 2 is detachably mounted on the upper surface of the support plate 4 via an mounting assembly. The output shaft of the electric push rod 5 extends through the protective shell 1 and is fixedly connected to the support plate 4. Two U-shaped fixing plates 7 are mounted on the left and right sides of the inner wall of the protective shell 1, providing sliding support for a buffer rod 8. The buffer rod 8 is slidably mounted through the fixing plate 7, supporting a buffer plate 6. The lidar body 2 has... A buffer plate 6 is provided to protect the lidar body 2. One end of two buffer rods 8 on the same side is fixedly connected to the buffer plate 6 on the same side. A first spring 9 is sleeved on the buffer rod 8, with its two ends fixedly connected to the buffer plate 6 and the fixed plate 7 respectively. The first spring 9 provides elastic support for the buffer rod 8. A movable plate 3 is hinged to the front side of the protective shell 1. By setting up the protective shell 1, electric push rod 5, movable plate 3 and buffer plate 6, the electric push rod 5 drives the support plate 4 to move, which, together with the protective shell 1, wraps and protects the lidar body 2. Combined with the hinged installation of the movable plate 3, it is convenient to extend the lidar body 2 out of the protective shell 1 and open the movable plate 3 at any time. Combined with the action of the buffer plate 6 and the first spring 9, the impact received by the protective shell 1 is buffered, thereby avoiding damage to the lidar body 2 and ensuring the safety of the autonomous vehicle.
[0031] The mounting assembly includes two sets of mounting plates 10. Bolts 11 are threaded onto the mounting plates 10. There are two mounting plates 10 in each set. The two sets of mounting plates 10 are installed on the left and right sides of the lidar body 2, respectively. Bolts 11 are threaded onto the mounting plates 10. The lidar body 2 is threadedly fixed by the bolts 11. The tail end of the bolt 11 is threadedly connected to the support plate 4. By setting up the mounting plates 10 and the bolts 11, the mounting plates 10 are used to thread the bolts 11 onto the left and right sides of the lidar body 2. Combined with the threaded installation of the bolts 11, the lidar body 2 is threadedly fixed onto the support plate 4, which facilitates the disassembly of the lidar body 2 at any time in the future.
[0032] The sliding assembly includes two sliding plates 12, which provide sliding support for the support plate 4. The two sliding plates 12 are respectively installed on the left and right sides of the support plate 4. Slide grooves are provided on both sides of the inner wall of the protective shell 1. One end of the sliding plate 12 is slidably installed in the slide groove. By setting the sliding plate 12, the support plate 4 is slidably supported by the sliding action of one end of the sliding plate 12 in the slide groove. Thus, the support plate 4 can move smoothly back and forth under the drive of the electric push rod 5, resulting in a simple structure.
[0033] Two second springs 17 are installed on the rear side of the inner wall of the protective shell 1. The second springs 17 provide elastic support for the auxiliary plate 16. The front end of each of the two second springs 17 is equipped with an auxiliary plate 16. The front side of the auxiliary plate 16 is in contact with the rear side of the lidar body 2. By setting the second springs 17 and the auxiliary plate 16, the elasticity of the second springs 17 provides elastic support for the auxiliary plate 16. Combined with the function of the auxiliary plate 16, the distance between the two buffer plates 6 is controlled after the lidar body 2 is moved, thereby preventing the position of the two buffer plates 6 from moving and hindering the reset of the lidar body 2, thus making the operation convenient.
[0034] Two telescopic rods 14 are installed on the rear side of the inner wall of the protective shell 1. The telescopic rods 14 are used to strengthen the support plate 4. The two telescopic rods 14 are located on the left and right sides of the output shaft of the electric push rod 5, respectively. The telescopic shaft of the telescopic rods 14 is fixedly connected to the support plate 4. By setting the telescopic rods 14, the extension of the telescopic rods 14 is used to strengthen the support on the left and right sides of the support plate 4, thereby improving the stability and balance of the support plate 4 and preventing the support plate 4 from shaking when moving.
[0035] The second spring 17 is equipped with a telescopic rod 18 installed on the rear side of the inner wall of the protective shell 1. The telescopic rod 18 fills the interior of the second spring 17. The telescopic shaft of the telescopic rod 18 is fixedly connected to the auxiliary plate 16. A baffle 13 is installed at one end of the buffer rod 8 to seal one end of the buffer rod 8. A square locking strip 15 is installed on the lower surface of the lidar body 2. A slot that matches the locking strip 15 is opened on the upper surface of the support plate 4. The bottom end of the locking strip 15 extends into the slot. By setting the telescopic rod 18, the baffle 13, and the locking strip 15, the second spring 17 is filled by the telescopic rod 18, thereby improving the fullness of the interior of the second spring 17, preventing deformation of the second spring 17, and extending the service life of the second spring 17. Combined with the function of the baffle 13, one end of the buffer rod 8 is sealed. The locking strip 15 is used to initially position the lidar body 2.
[0036] A cleaning brush plate 19 is provided on the rear side of the movable plate 3. The bristles on the cleaning brush plate 19 abut against the front side of the lidar body 2. A fixing component is provided on the front side of the cleaning brush plate 19. By setting up the cleaning brush plate 19, the dust on the front side of the lidar body 2 can be easily cleaned, thereby avoiding the lidar body 2 from being covered with too much dust, and thus avoiding the dust affecting the use of the lidar body 2.
[0037] The fixing assembly includes two sets of fixing rods 20, with two fixing rods in each set. The front end of the fixing rod 20 extends through a fixing hole opened on the front side of the movable plate 3. A through channel is opened on the fixing rod 20. The same through plate 21 is set in the through channel of the two fixing rods 20 in the same set. By setting the fixing rods 20 and the through plate 21, the fixing rods 20 combined with the fixing hole can easily be used to lock the cleaning brush plate 19 onto the movable plate 3, thereby fixing the position of the cleaning brush plate 19. Combined with the through plate 21 passing through the two through channels, the cleaning brush plate 19 is further fixed and it is also convenient to disassemble the cleaning brush plate 19 at any time in the future, making the operation convenient.
[0038] In use, the lidar body 2 is fixed to the support plate 4 by the rotating bolt 11. When it is necessary to extend the lidar body 2 out of the protective shell 1, the electric push rod 5 is activated. The output shaft of the electric push rod 5 drives the support plate 4 to move. When the support plate 4 moves, one end of the sliding plate 12 slides in the groove. The support plate 4 stretches the telescopic rod 14, which provides auxiliary support for the support plate 4. When the support plate 4 moves, it drives the lidar body 2 to move. The lidar body 2 gradually moves forward. As the lidar body 2 moves, the auxiliary plate 16 is subjected to the reaction force of the second spring 17 and moves with the lidar. The side of the auxiliary plate 16 abuts against the buffer plate 6. The elasticity of the second spring 17 provides elastic support for the auxiliary plate 16. Combined with the function of the auxiliary plate 16, the distance between the two buffer plates 6 is controlled after the lidar body 2 moves, thereby preventing the position of the two buffer plates 6 from moving and obstructing the lidar body 2. Reset for easier operation. At this time, the front end of the lidar body 2 is in contact with the movable plate 3. Fold the movable plate 3 upward. As the movable plate 3 is folded, the brush on the cleaning brush plate 19 cleans the dust on the lidar body 2. Then the lidar body 2 extends out of the protective shell 1. When the lidar body 2 needs to be disassembled, move the through plate 21. The two ends of the through plate 21 gradually extend through channels. Then move the fixing rod 20 to the rear. One end of the fixing rod 20 moves out of the fixing hole. Then remove the cleaning brush plate 19 from the movable plate 3. Use the telescopic rod 18 to fill the second spring 17, thereby improving the fullness of the second spring 17, avoiding deformation of the second spring 17, and extending the service life of the second spring 17. Combined with the function of the baffle 13, one end of the buffer rod 8 is sealed. Use the clip 15 to initially position the lidar body 2.
Claims
1. A lidar component for use in autonomous vehicles, characterized in that: The system includes a protective shell (1) with openings on both the front and lower surfaces, and a lidar main body (2) housed within the protective shell (1). An electric push rod (5) is mounted on the rear side of the protective shell (1). A support plate (4) is slidably mounted inside the protective shell (1) via a sliding assembly. The lidar main body (2) is detachably mounted on the upper surface of the support plate (4) via a mounting assembly. The output shaft of the electric push rod (5) extends through into the protective shell (1) and is fixedly connected to the support plate (4). Two U-shaped fixing plates (7) are installed on the left and right sides of the inner wall. A buffer rod (8) is slidably installed on the fixing plate (7). A buffer plate (6) is provided on the left and right sides of the laser radar body (2). One end of the two buffer rods (8) on the same side is fixedly connected to the buffer plate (6) on the same side. A first spring (9) is sleeved on the buffer rod (8) and its two ends are fixedly connected to the buffer plate (6) and the fixing plate (7) respectively. A movable plate (3) is hinged to the front side of the protective shell (1).
2. The lidar component used in autonomous vehicles according to claim 1, characterized in that: The mounting assembly includes two sets of mounting plates (10), with two mounting plates (10) in each set. The two sets of mounting plates (10) are respectively installed on the left and right sides of the lidar body (2). Bolts (11) are threaded on the mounting plates (10), and the tail ends of the bolts (11) are threaded to the support plate (4).
3. The lidar component used in autonomous vehicles according to claim 1, characterized in that: The sliding assembly includes two sliding plates (12), which are respectively installed on the left and right sides of the support plate (4). The left and right sides of the inner wall of the protective shell (1) are provided with sliding grooves, and one end of the sliding plate (12) is slidably installed in the sliding groove.
4. The lidar component used in autonomous vehicles according to claim 1, characterized in that: Two second springs (17) are installed on the rear side of the inner wall of the protective shell (1). Each of the two second springs (17) has an auxiliary plate (16) installed at its front end. The front side of the auxiliary plate (16) is in contact with the rear side of the lidar body (2).
5. The lidar component used in autonomous vehicles according to claim 1, characterized in that: Two telescopic rods (14) are installed on the rear side of the inner wall of the protective shell (1). The two telescopic rods (14) are located on the left and right sides of the output shaft of the electric push rod (5), respectively. The telescopic shaft of the telescopic rod (14) is fixedly connected to the support plate (4).
6. The lidar component for use in autonomous vehicles according to claim 4, characterized in that: The second spring (17) is provided with a telescopic rod two (18) installed on the rear side of the inner wall of the protective shell (1). The telescopic shaft of the telescopic rod two (18) is fixedly connected to the auxiliary plate (16). A baffle (13) is installed at one end of the buffer rod (8). A square clip (15) is installed on the lower surface of the laser radar body (2). A slot that cooperates with the clip (15) is opened on the upper surface of the support plate (4). The bottom end of the clip (15) extends into the slot.
7. The lidar component for use in autonomous vehicles according to claim 1, characterized in that: A cleaning brush plate (19) is provided on the rear side of the movable plate (3). The bristles on the cleaning brush plate (19) abut against the front side of the lidar body (2). A fixing component is provided on the front side of the cleaning brush plate (19).
8. The lidar component for use in autonomous vehicles according to claim 7, characterized in that: The fixing assembly includes two sets of fixing rods (20), with two fixing rods (20) in each set. The front end of the fixing rod (20) extends through a fixing hole opened on the front side of the movable plate (3). A through channel is opened on the fixing rod (20), and the same through plate (21) is provided in the through channel of the two fixing rods (20) in the same set.