Automobile laser radar light transmission assembly

Abstract

The utility model discloses a kind of automobile laser radar light-transmitting components, it relates to laser radar technical field, solve the problem that existing device detection range is small and low tightness, using the following scheme: the left side fixed mounting of shell has fixed cylinder, this automobile laser radar light-transmitting component, by the setting of electric telescopic link and light-blocking cylinder, when vehicle straight-line travels, electric telescopic link can drive light-blocking cylinder to move left, to adjust the range of light-blocking cylinder side shielding to lens, when vehicle turns, electric telescopic link drives light-blocking cylinder to retract, semicircular lens can be 180 degrees to the front and side detection, wide detection range, good use effect, simultaneously through the setting of thread groove and sealing washer, thread groove can facilitate the installation and disassembly of light-transmitting cover, sealing washer improves the tightness between light-transmitting cover and shell, prevent external dust from entering and affect its use effect, good tightness, improve the convenience of use.

Description

Technical Field

[0001] This utility model relates to the field of lidar technology, specifically to a light-transmitting component for automotive lidar. Background Technology

[0002] LiDAR (Light Detection and Ranging) is a radar system that uses laser beams to detect the position, velocity, and other characteristics of targets. Its working principle involves transmitting a detection signal to the target, then comparing the received signal reflected back from the target with the transmitted signal. After appropriate processing, information about the target can be obtained, such as its distance, azimuth, altitude, speed, attitude, and even shape. This allows for the detection, tracking, and identification of targets such as other vehicles.

[0003] A search revealed that patent application CN222379880U discloses a high-performance automotive LiDAR light-transmitting component, including a detection frame; an adjustment groove formed on one inner wall of the detection frame; an automotive LiDAR located within the detection frame; and an adjustment assembly comprising a fixed sleeve, a telescopic cylinder, a sliding rod, a sliding sleeve, a sliding groove, a stop plate, a connecting block, and a connecting rod. The fixed sleeve is fixedly connected to one inner wall of the adjustment groove. The telescopic cylinder's extension and retraction rotates the detection end of the automotive LiDAR, changing its detection direction when the car turns, allowing for earlier target detection at the turning point, thereby increasing the detection field of view of the automotive LiDAR while the car is in motion.

[0004] However, due to the design of the telescopic cylinder and the detection end, when the vehicle turns, the telescopic cylinder drives the detection end to rotate and detect the turning point in advance. However, the front of the vehicle cannot be detected by the lidar, resulting in a small detection range and poor performance. At the same time, external dust can easily enter the detection frame, leading to poor sealing, inconvenient installation and disassembly, and inconvenient use.

[0005] Therefore, we propose a light-transmitting component for automotive lidar. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a light-transmitting component for automotive lidar, which solves the problems of small detection range and poor sealing performance in existing devices.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a car lidar light-transmitting component, including a housing, wherein a mounting plate of compatible specifications is fixedly installed on the bottom surface of the housing;

[0008] The housing is equipped with control processing elements. A fixed cylinder is fixedly installed on the left side of the housing. A lens with a corresponding position is installed on the left side of the fixed cylinder. The lens is semi-circular. A lens assembly with a matching specification is installed on the right side of the lens. A groove with a matching specification is opened on the left side of the fixed cylinder. Four sets of electric telescopic rods with corresponding positions are installed in the groove. A light-blocking tube with a matching specification is fixedly installed on the left side of the electric telescopic rod. The light-blocking tube is slidably connected to the groove. A light-transmitting cover with a matching specification is installed on the left side of the housing.

[0009] The outer shell has a threaded groove with opposite positions on its left side, and the outer wall of the light-transmitting cover is fitted with a thread of the same specification. A sealing gasket of the same specification is fitted in the threaded groove, and the left side of the light-transmitting cover is semi-circular.

[0010] Preferably, the outer wall of the lens is fitted with a fixing bracket that connects to the inner wall of the fixing cylinder, so as to limit and fix the lens.

[0011] Preferably, the main body of the lens assembly consists of a floating lens, a focusing lens, a filter, and a photosensitive sensor from left to right, which can improve the performance of the lidar.

[0012] Preferably, the left side of the floating lens is fitted with a UD lens of the same specification, which can reduce chromatic aberration and improve light transmission and performance.

[0013] Preferably, a protective cover of the same specifications is fixedly installed on the top surface of the outer casing, which can protect the top surface of the outer casing and improve the safety of use.

[0014] Preferably, the top surface of the mounting plate has four sets of mounting holes in opposite positions, which facilitates the installation of the device on the vehicle roof and increases the detection range of the lidar.

[0015] 1. This automotive lidar light-transmitting component, through the setting of an electric telescopic rod and a light-blocking tube, allows the electric telescopic rod to move the light-blocking tube to the left when the vehicle is traveling in a straight line, thereby adjusting the range of side occlusion of the lens by the light-blocking tube. When the vehicle turns, the electric telescopic rod retracts the light-blocking tube, and the semi-circular lens can perform 180-degree detection in front and to the side, with a wide detection range and good performance.

[0016] 2. Simultaneously, through the setting of threaded grooves and sealing gaskets, the threaded grooves facilitate the installation and disassembly of the light-transmitting cover, while the sealing gaskets improve the sealing between the light-transmitting cover and the outer shell, preventing external dust from entering and affecting its performance. Good sealing performance improves the convenience of use. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the threaded groove structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the groove structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the lens of this utility model.

[0021] In the diagram: 1. Outer shell; 2. Mounting plate; 3. Fixing cylinder; 4. Lens; 5. Groove; 6. Electric telescopic rod; 7. Light-blocking cylinder; 8. Light-transmitting cover; 9. Threaded groove; 10. Fixing bracket; 11. UD lens; 12. Floating lens; 13. Focusing lens; 14. Filter; 15. Photosensitive sensor; 16. Protective cover; 17. Mounting hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-4 As shown: The housing 1 is equipped with control processing components. A fixed cylinder 3 is fixedly installed on the left side of the housing 1. A lens 4, which is semi-circular, is mounted on the left side of the fixed cylinder 4. A lens assembly of the same specification is mounted on the right side of the lens 4. A groove 5 of the same specification is opened on the left side of the fixed cylinder 3. Four sets of electric telescopic rods 6 are mounted in opposite positions in the groove 5. A light-blocking cylinder 7 of the same specification is fixedly installed on the left side of the electric telescopic rod 6. The light-blocking cylinder 7 is slidably connected to the groove 5. A light-transmitting cover 8 of the same specification is mounted on the left side of the housing 1. Through the setting of the electric telescopic rods 6 and the light-blocking cylinder 7, when the vehicle is traveling in a straight line, the electric telescopic rod 6 can drive the light-blocking cylinder 7 to move to the left, thereby adjusting the range of the light-blocking cylinder 7 blocking the side of the lens 4. When the vehicle turns, the electric telescopic rod 6 drives the light-blocking cylinder 7 to retract. The semi-circular lens 4 can detect 180 degrees in front and to the side, with a wide detection range and good performance.

[0024] like Figure 2-4As shown: The left side of the outer casing 1 has a corresponding threaded groove 9. The outer wall of the light-transmitting cover 8 is fitted with a thread of the same specification. The threaded groove 9 is fitted with a sealing gasket of the same specification. The left side of the light-transmitting cover 8 is semi-circular. Through the setting of the threaded groove 9 and the sealing gasket, the threaded groove 9 can facilitate the installation and removal of the light-transmitting cover 8. The sealing gasket improves the sealing between the light-transmitting cover 8 and the outer casing 1, preventing external dust from entering and affecting its use effect. The good sealing performance improves the convenience of use.

[0025] like Figure 2-3 As shown: The main body of the lens assembly consists of a floating lens 12, a focusing lens 13, a filter 14 and a photosensitive sensor 15 from left to right, which can improve the performance of the lidar.

[0026] The working principle and usage process of this utility model are as follows: When the device is needed to work, when the vehicle is traveling in a straight line, the electric telescopic rod 6 can drive the light-blocking cylinder 7 to move to the left, thereby adjusting the range of the light-blocking cylinder 7 blocking the side of the lens 4. When the vehicle turns, the electric telescopic rod 6 drives the light-blocking cylinder 7 to retract. The semi-circular lens 4 can detect the front and side 180 degrees, with a wide detection range and good performance. At the same time, the threaded groove 9 facilitates the installation and removal of the light-transmitting cover 8, and the sealing gasket improves the sealing between the light-transmitting cover 8 and the outer shell 1, preventing external dust from entering and affecting its performance. The good sealing performance improves the convenience of use.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A light-transmitting component for an automotive lidar, comprising a housing (1), wherein a mounting plate (2) of compatible specifications is fixedly installed on the bottom surface of the housing (1); Its features are: The housing (1) is equipped with a control processing element inside. A fixed cylinder (3) is fixedly installed on the left side of the housing (1). A lens (4) with a corresponding position is installed on the left side of the fixed cylinder (4). The lens (4) is semi-circular. A lens assembly with a matching specification is installed on the right side of the lens (4). A groove (5) with a matching specification is opened on the left side of the fixed cylinder (3). Four sets of electric telescopic rods (6) with a corresponding position are installed in the groove (5). A light-blocking cylinder (7) with a matching specification is fixedly installed on the left side of the electric telescopic rod (6). The light-blocking cylinder (7) is slidably connected to the groove (5). A light-transmitting cover (8) with a matching specification is installed on the left side of the housing (1). The outer shell (1) has a threaded groove (9) with opposite positions on its left side. The outer wall of the light-transmitting cover (8) is fitted with a thread of the same specification. A sealing gasket of the same specification is fitted in the threaded groove (9). The left side of the light-transmitting cover (8) is semi-circular.

2. The automotive lidar light-transmitting component according to claim 1, characterized in that: The lens (4) is fitted with a fixing bracket (10) that is connected to the inner wall of the fixing cylinder (3).

3. The automotive lidar light-transmitting component according to claim 1, characterized in that: The main body of the lens assembly consists of a floating lens (12), a focusing lens (13), a filter (14), and a photosensitive sensor (15) from left to right.

4. The light-transmitting component for an automotive lidar according to claim 3, characterized in that: The left side of the floating lens (12) is fitted with a UD lens (11) of the same specification.

5. The light-transmitting component for an automotive lidar according to claim 1, characterized in that: A protective cover (16) of the same specification is fixedly installed on the top surface of the outer shell (1).

6. The light-transmitting component for an automotive lidar according to claim 1, characterized in that: The top surface of the mounting plate (2) has four sets of mounting holes (17) that are positioned opposite each other.

Images