New energy automobile laser radar device
By installing a retractable wind deflector on the lidar device, the dust can be automatically cleaned using airflow, solving the problem of difficult-to-clean dirt on the outer casing, improving measurement accuracy and simplifying the cleaning process.
Patent Information
- Application Number
- CN202422376359.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-09-27
AI Technical Summary
In the existing technology, it is difficult to effectively clean the casing of lidar devices, which leads to reduced measurement accuracy and misjudgment of object positions. Existing cleaning methods are complicated and inconvenient.
A lidar device for new energy vehicles was designed, which uses a retractable wind deflector on the front of the radar housing to create a turbulent zone by utilizing the airflow during vehicle movement to automatically blow away dust and simplify the cleaning process.
The automated wind deflector structure enables self-cleaning of the lidar housing, improving measurement accuracy and reliability, simplifying the cleaning process, and resulting in a simple and aesthetically pleasing structure.
Smart Images
Figure CN223501170U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive radar technology, and in particular to a lidar device for new energy vehicles. Background Technology
[0002] In new energy vehicles, LiDAR devices are mainly used for perception and environmental modeling, helping vehicles achieve autonomous driving and advanced driver assistance functions. LiDAR accurately creates a three-dimensional image of the surrounding environment by emitting a laser beam and measuring the time it takes for the laser beam to reflect back.
[0003] LiDAR relies on emitting and receiving laser beams to measure the distance and position of surrounding objects. If there is debris (dust) on the casing (especially the lidar window), it can cause the following problems: dirt may absorb or scatter the laser beam, causing the laser to fail to reach the target object properly, or the reflected signal to be weak, thus reducing measurement accuracy or effective range; dirt can also introduce interference signals, causing the lidar to fail to accurately identify surrounding objects, or even misidentify them as objects, resulting in incorrect distance measurements or artifacts.
[0004] Current technology generally only allows car owners to manually wipe the radar window, which is often forgotten and quite troublesome. There are also some methods that use air jets or water sprays to clean the radar window, but these are more complex. Utility Model Content
[0005] The purpose of this invention is to solve the problem of difficult cleaning of the radar casing in the prior art, and to propose a new energy vehicle lidar device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A lidar device for new energy vehicles includes a lidar housing with a through-slit at the upper end of the front of the lidar housing. The lidar housing contains a horizontally arranged wind deflector and a power component. The power component can drive the wind deflector to extend at least partially out of the through-slit or retract into the lidar housing.
[0008] The windshield is fixedly connected to a guide slider, which is slidably connected to the inner wall of the radar housing, and the sliding direction is parallel to the direction of vehicle movement.
[0009] The power assembly includes a threaded rod and a forward and reverse rotating motor. The forward and reverse rotating motor is fixed inside the radar housing. The power output shaft of the forward and reverse rotating motor is connected to the threaded rod. The threaded rod is arranged along the movement direction of the wind deflector and is threadedly connected to the wind deflector.
[0010] The power assembly includes a power telescopic rod, the telescopic direction of which is set along the movement direction of the wind deflector, the outer shell of the power telescopic rod is fixed to the radar outer shell, and the piston rod of the power telescopic rod is fixed to the wind deflector.
[0011] A cover plate is fixed to the front end of the windbreak plate, and the cover plate can seal the through seam.
[0012] The cover plate coincides with the front plane of the outer shell.
[0013] The beneficial effects of the new energy vehicle lidar device proposed in this utility model are as follows: During driving, the airflow will impact the front of the housing. By extending the wind deflector out of the front of the housing for a period of time or intermittently extending and retracting it, the airflow will form a turbulent airflow zone between the front of the housing and the wind deflector. The turbulent airflow can be used to blow away the dust on the surface of the front of the housing. When cleaning is not required, the wind deflector can be retracted into the lidar housing. The device has a simple structure and only requires extending the wind deflector to clean the dust on the surface of the front of the housing, without the need for a complicated cleaning structure. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the radar housing mounting structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the wind deflector when it is not working according to the first embodiment of this utility model;
[0016] Figure 3 This is a schematic diagram of the wind deflector in operation according to the first embodiment of the present invention;
[0017] Figure 4 This is a schematic diagram of the structure of the wind deflector when it is not working, according to the second embodiment of this utility model.
[0018] Figure 5 This is a schematic diagram of the wind deflector in operation according to the second embodiment of this utility model.
[0019] In the diagram: 1. Radar housing; 2. Front panel of housing; 3. Cover plate; 4. Wind deflector; 6. Guide slider; 7. Threaded rod; 8. Forward and reverse rotary motor; 9. Through-slit. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figures 1-5A new energy vehicle lidar device includes a lidar housing 1. The lidar housing 1 has a through-slit 9 at the upper end of the front face 2 of the housing. The lidar housing 1 has a horizontally arranged wind deflector 4 and a power component. The power component can drive the wind deflector 4 to extend at least part of the through-slit 9 or be stored in the lidar housing 1.
[0022] This device is used on a lidar mounted on the windward side of a vehicle. A wind deflector 4, which can extend or retract, is installed inside the lidar housing 1. (See reference...) Figure 3 During driving, the airflow will impact the front face 2 of the housing. Extending the wind deflector 4 out of the front face 2 of the housing for a period of time or intermittently extending and retracting it will create a turbulent airflow zone between the front face 2 of the housing and the wind deflector 4. The turbulent airflow will blow away the dust on the surface of the front face 2 of the housing. When cleaning is not required, the wind deflector 4 can be retracted into the radar housing 1. This device has a simple structure and only requires extending the wind deflector 4 to clean the dust on the surface of the front face 2 of the housing, without the need for a complicated cleaning structure.
[0023] The power unit of this device can be connected to the switch button and the car battery via wires, so that the car owner can control the switch button from inside the car to complete the ash blowing operation;
[0024] Alternatively, the powertrain components can be directly connected to the car's central control system, which can automatically open or close the windshield based on the driver's driving habits.
[0025] To improve the stability of the windshield 4's extension and retraction, a guide slider 6 is fixedly connected to the windshield 4. The guide slider 6 is slidably connected to the inner wall of the radar housing 1, and the sliding direction is parallel to the vehicle's forward direction. The guide slider 6 improves the stability of the slidable connection between the windshield 4 and the radar housing 1. For example, the guide slider 6 can be set as a slide rail structure with a groove, and the inner wall of the radar housing 1 has a strip-shaped protrusion, which slides in conjunction with the slide rail structure with the strip-shaped protrusion.
[0026] In one implementation, the power assembly includes a threaded rod 7 and a forward and reverse rotary motor 8. The forward and reverse rotary motor 8 is fixed inside the radar housing 1. The power output shaft of the forward and reverse rotary motor 8 is connected to the threaded rod 7. The threaded rod 7 is arranged along the movement direction of the wind deflector 4 and is threadedly connected to the wind deflector 4. By rotating the forward or reverse rotation of the forward and reverse rotary motor 8, the threaded rod 7 rotates forward or reverse. Under the action of the thread, the wind deflector 4 extends or retracts. The structure is simple.
[0027] Alternatively, the power assembly may include a power telescopic rod, the telescopic direction of which is set along the movement direction of the wind deflector 4, the outer shell of the power telescopic rod is fixed to the radar outer shell 1, and the piston rod of the power telescopic rod is fixed to the wind deflector 4, thereby driving the wind deflector 4 to extend or retract.
[0028] A cover plate 3 is fixedly connected to the front end of the wind deflector 4. The cover plate 3 can cover the through seam 9. By sealing the through seam 9 with the cover plate 3, the cover plate 3 coincides with the plane of the front face 2 of the outer shell, making the entire front face 2 of the outer shell more beautiful.
[0029] In one implementation, the radar housing 1 is divided into two independent chambers. The wind deflector, power assembly, and other structures are placed in the upper chamber, while the radar laser assembly is installed in the lower chamber. This facilitates maintenance and other operations.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.
Claims
1. A lidar device for new energy vehicles, comprising a lidar housing (1), characterized in that, The radar housing (1) has a through-slit (9) at the upper end of the front face (2) of the housing. The radar housing (1) is provided with a horizontally arranged wind deflector (4) and a power component. The power component can drive the wind deflector (4) to extend at least part of the through-slit (9) or be stored in the radar housing (1).
2. The lidar device for new energy vehicles according to claim 1, characterized in that, The windshield (4) is fixedly connected to a guide slider (6), which is slidably connected to the inner wall of the radar housing (1) and the sliding direction is parallel to the direction of vehicle movement.
3. The lidar device for new energy vehicles according to claim 1, characterized in that, The power assembly includes a threaded rod (7) and a forward and reverse rotary motor (8). The forward and reverse rotary motor (8) is fixed inside the radar housing (1). The power output shaft of the forward and reverse rotary motor (8) is connected to the threaded rod (7) for transmission. The threaded rod (7) is arranged along the movement direction of the wind deflector (4) and is threadedly connected to the wind deflector (4).
4. A lidar device for new energy vehicles according to claim 1, characterized in that, The power assembly includes a power telescopic rod, the telescopic direction of which is set along the movement direction of the wind deflector (4), the outer shell of the power telescopic rod is fixed to the radar outer shell (1), and the piston rod of the power telescopic rod is fixed to the wind deflector (4).
5. A new energy vehicle lidar device according to any one of claims 1-4, characterized in that, The front end of the wind deflector (4) is fixed with a cover plate (3), which can cover the through seam (9).
6. A new energy vehicle lidar device according to claim 5, characterized in that, The cover plate (3) coincides with the plane of the front face (2) of the outer shell.