Cleaning windshield wiper structure and laser radar

Abstract

The utility model provides a cleaning windshield wiper structure and a laser radar. According to the technical scheme, the cleaning windshield wiper structure is characterized by comprising a steering engine connecting disc; a wiper base; the windshield wiper base is arranged on the steering engine connecting disc; a cleaning assembly; the cleaning assembly is movably arranged on the windshield wiper base. A compression spring; one end of the compression spring is connected with the steering engine connecting disc, and the other end of the compression spring is connected with the cleaning assembly. The laser radar comprises a radar body and a cleaning windshield wiper structure. The laser radar window cleaning device has the advantage that the laser radar window can be cleaned regularly to prevent pollutant accumulation.

Description

Technical Field

[0001] This application relates to the field of radar equipment technology, and in particular to a clean wiper structure and lidar. Background Technology

[0002] LiDAR is an active laser detector that uses laser light to illuminate an object and obtains distance information of the object by ranging. At the same time, it uses a scanning mechanism to measure the outline information of the external scene or object. Due to its excellent anti-interference performance, LiDAR is often installed outdoors or in harsh environments.

[0003] After a certain period of use, the optical window of a lidar is prone to accumulating contaminants such as dust, rainwater, and mud. When the contaminants accumulate to a certain extent, the lidar may malfunction. Therefore, the optical window of a lidar needs to be cleaned regularly. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this application provides a cleaning wiper structure and a lidar to solve the problems existing in related technologies. The technical solution is as follows:

[0005] In a first aspect, embodiments of this application provide a cleaning wiper structure, including: a servo motor connecting plate; a wiper base; the wiper base being disposed on the servo motor connecting plate; a cleaning component; the cleaning component being movably disposed on the wiper base; a compression spring; one end of the compression spring being connected to the servo motor connecting plate, and the other end of the compression spring being connected to the cleaning component.

[0006] In one embodiment, the cleaning assembly includes: a wiper arm, a wiper blade, and a wiper pad that can limit the position of the wiper blade; the wiper arm is movably mounted on the wiper base; the wiper blade is mounted on the wiper arm; one end of the wiper pad is detachably mounted on the wiper arm, and the other end of the wiper pad is connected to the wiper blade.

[0007] In one embodiment, a pivot is provided at the upper end of the wiper base; the wiper arm is rotatably mounted on the pivot; the compression spring is connected to the wiper arm and is located on the side opposite to the wiper blade.

[0008] In one embodiment, a first limiting screw is provided at the lower end of the wiper arm; and a second limiting screw corresponding to and adapted to the first limiting screw is provided at the upper end of the wiper base.

[0009] In one embodiment, the cross-sectional shape of the servo motor connecting plate is circular.

[0010] Secondly, embodiments of this application provide a lidar, including a lidar body and a cleaning wiper structure.

[0011] In one embodiment, an optical window, a camera, and a servo motor are provided on the radar body; the camera is located at the upper end of the optical window and on one side of the servo motor; the servo motor connecting plate is provided on the movable end of the servo motor.

[0012] In one embodiment, the optical window is a planar plate-shaped window; the optical window is obliquely disposed on the radar body.

[0013] In one embodiment, the angle between the optical window and the bottom surface of the radar body is 80°.

[0014] The advantages or beneficial effects of the above technical solutions include at least the following:

[0015] The cleaning wiper structure of this application is mounted on the servo motor of the lidar. The servo motor can drive the cleaning wiper structure to rotate, and the cleaning component can be movably mounted on the wiper base. When the cleaning component moves, it can clean the optical window below, preventing various contaminants from accumulating on the optical window, thereby achieving the automatic cleaning effect of the lidar.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0018] Figure 1 This is a first structural schematic diagram of the cleaning wiper structure in this utility model;

[0019] Figure 2 This is a second structural schematic diagram of the cleaning wiper structure in this utility model;

[0020] Figure 3 This is a third structural schematic diagram of the cleaning wiper structure in this utility model;

[0021] Figure 4 This is a front view of the lidar in this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the lidar in this utility model.

[0023] In the diagram: 1. Servo connecting plate; 2. Wiper base; 3. Cleaning assembly; 31. Wiper arm; 32. Wiper blade; 33. Wiper pad; 4. Compression spring; 5. Shaft; 61. First limit screw; 62. Second limit screw; 7. Radar body; 8. Optical window; 9. Camera lens; 10. Servo. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described to make the objectives, features, and advantages of this invention more apparent. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Example 1

[0027] like Figures 1 to 3 As shown, this embodiment provides a cleaning wiper structure, including: a servo motor connecting plate 1; a wiper base 2; the wiper base 2 is disposed on the servo motor connecting plate 1; a cleaning component 3; the cleaning component 3 is movably disposed on the wiper base 2; and a compression spring 4; one end of the compression spring 4 is connected to the servo motor connecting plate 1, and the other end of the compression spring 4 is connected to the cleaning component 3.

[0028] In this embodiment, the cleaning wiper structure is connected to the servo motor 10 on the lidar via the servo motor connecting plate 1. The wiper base 2 is mounted on the servo motor connecting plate 1, and the cleaning component 3 is movably mounted on the wiper base 2. The two ends of the compression spring 4 are connected to the servo motor connecting plate 1 and the cleaning component 3, respectively. Under the elastic action of the compression spring 4, the cleaning component 3 can be pressed against the lidar window. When the servo motor 10 is working, it drives the servo motor connecting plate 1 to rotate, thereby allowing the cleaning component 3 to rotate around an axis on the lidar window, thus achieving the effect of cleaning contaminants on the lidar window. In addition, the range of motion of the cleaning component 3 on the wiper base 2 is adjustable, thereby controlling the pressure of the cleaning component 3 on the lidar window, making it more flexible and convenient to use.

[0029] Furthermore, the cleaning component 3 includes: a wiper arm 31, a wiper blade 32, and a wiper pad 33 that can limit the position of the wiper blade 32; the wiper arm 31 is movably mounted on the wiper base 2; the wiper blade 32 is mounted on the wiper arm 31; one end of the wiper pad 33 is detachably mounted on the wiper arm 31, and the other end of the wiper pad 33 is connected to the wiper blade 32.

[0030] In this embodiment, the wiper arm 31 is movably mounted on the wiper base 2, and the wiper blade 32 is pressed and fixed to the wiper arm 31 by the wiper clamp 33. When the wiper base 2 rotates, the wiper arm 31 can drive the wiper blade 32 to rotate accordingly. The wiper blade 32 presses on the lidar window, and when the wiper blade 32 rotates around the axis with the wiper arm 31, it can clean the contaminants on the lidar window. After the wiper clamp 33 is removed from the wiper arm 31, a new wiper blade 32 can be replaced, making maintenance more convenient.

[0031] Furthermore, a rotating shaft 5 is provided at the upper end of the wiper base 2; the wiper arm 31 is rotatably mounted on the rotating shaft 5; the compression spring 4 is connected to the wiper arm 31, and the compression spring 4 is located on the opposite side of the wiper rubber strip 32.

[0032] In this embodiment, a rotating shaft 5 is provided at the upper end of the wiper base 2. The wiper arm 31 is connected to the wiper base 2 through the rotating shaft 5. The wiper arm 31 can rotate around the rotating shaft 5. Under the action of the compression spring 4, the end of the wiper arm 31 on which the wiper rubber strip 32 is installed can be pressed against the lidar window. When the wiper base 2 rotates, it can drive the wiper rubber strip 32 to move, thereby cleaning the contaminants on the lidar window.

[0033] Furthermore, a first limiting screw 61 is provided at the lower end of the wiper arm 31; a second limiting screw 62 corresponding to and adapted to the first limiting screw 61 is provided at the upper end of the wiper base 2.

[0034] In this embodiment, the first limiting screw 61 is located at the lower end of the wiper arm 31, and the second limiting screw 62 is located at the upper end of the wiper base 2. The first limiting screw 61 and the second limiting screw 62 are located on the same vertical line (see [reference]). Figure 1 The amount of movement of the wiper arm 31 on the lidar can be controlled by adjusting the tightness of the first limit screw 61 and the second limit screw 62.

[0035] When the first limit screw 61 or the second limit screw 62 is loosened, the wiper arm 31 has less movement. When the first limit screw 61 or the second limit screw 62 is tightened, the wiper arm 31 has more movement. Thus, the pressure of the wiper blade 32 on the lidar window can be adjusted in the above manner. The greater the pressure of the wiper blade 32 on the window, the better the cleaning effect. However, the wear of the wiper blade 32 will increase accordingly, and its lifespan will be reduced. Therefore, the tightness can be adjusted according to the usage requirements.

[0036] Furthermore, the cross-sectional shape of the servo motor connecting plate 1 is circular.

[0037] In this embodiment, the servo connecting plate 1 has a circular structure, which facilitates its rotation after being connected to the servo 10 on the lidar.

[0038] Example 2

[0039] like Figure 4 and Figure 5 As shown, this embodiment provides a lidar, including a lidar body 7 and a cleaning wiper structure.

[0040] In this embodiment, the cleaning wiper structure can be applied to various LiDARs. The cleaning wiper structure has all the technical effects described in Embodiment 1. Therefore, when the cleaning wiper structure is applied to a LiDAR, it also has the same technical effects, which will not be elaborated further here.

[0041] Furthermore, an optical window 8, a camera 9, and a servo motor 10 are provided on the radar body 7; the camera 9 is located at the upper end of the optical window 8 and is located on one side of the servo motor 10; the servo motor connecting plate 1 is located on the movable end of the servo motor 10.

[0042] In this embodiment, the optical window 8, camera 9, and radar body 7 are integrated into a single structure. The camera 9 can take pictures of the external environment and transmit the pictures to the main control unit inside the radar body 7 to determine the rain and fog weather conditions. The servo motor 10 is located in the middle position above the optical window 8, and the cleaning wiper structure is located on the movable end of the servo motor 10. When the servo motor 10 is working, it can drive the cleaning wiper structure to move, thereby cleaning the optical window 8 below.

[0043] Furthermore, the optical window 8 is a planar plate-shaped window; the optical window 8 is obliquely disposed on the radar body 7. The angle between the optical window 8 and the bottom surface of the radar body 7 is 80°.

[0044] In this embodiment, the optical window 8 is a flat plate structure. The optical window 8 is tilted on the radar body 7 and the angle between the optical window 8 and the bottom surface of the radar body 7 is 80°. The tilted optical window 8 can prevent the back reflection of the laser emitted light from interfering with the laser receiving component.

[0045] This utility model discloses a cleaning wiper structure and a lidar. The functions of each module in each device of the embodiment can be found in the corresponding description in the above method. It has the advantage of being able to periodically clean the lidar window to prevent the accumulation of pollutants.

[0046] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0047] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0048] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cleaning wiper structure, characterized in that, include: Servo drive connection plate; Wiper mount; The wiper base is mounted on the servo motor connecting plate; Cleaning components; The cleaning component is movably mounted on the wiper base; A compression spring; one end of the compression spring is connected to the servo motor connecting plate, and the other end of the compression spring is connected to the cleaning assembly.

2. The cleaning wiper structure according to claim 1, characterized in that, The cleaning assembly includes: a wiper arm, a wiper blade, and a wiper pad that can limit the position of the wiper blade; The wiper arm is movably mounted on the wiper base; the wiper rubber strip is mounted on the wiper arm; one end of the wiper pad is detachably mounted on the wiper arm, and the other end of the wiper pad is connected to the wiper rubber strip.

3. The cleaning wiper structure according to claim 2, characterized in that, A pivot is provided at the upper end of the wiper base; the wiper arm is rotatably mounted on the pivot; the compression spring is connected to the wiper arm and is located on the opposite side of the wiper blade.

4. The cleaning wiper structure according to claim 2, characterized in that, A first limiting screw is provided at the lower end of the wiper arm; a second limiting screw corresponding to and adapted to the first limiting screw is provided at the upper end of the wiper base.

5. The cleaning wiper structure according to claim 1, characterized in that, The cross-sectional shape of the servo motor connecting plate is circular.

6. A lidar, characterized in that, It includes the radar body and the cleaning wiper structure as described in any one of claims 1-5.

7. The lidar according to claim 6, characterized in that, An optical window, a camera, and a servo motor are provided on the radar body; the camera is located at the upper end of the optical window and on one side of the servo motor; the servo motor connecting plate is located on the movable end of the servo motor.

8. The lidar according to claim 7, characterized in that, The optical window is a planar plate-shaped window; the optical window is obliquely mounted on the radar body.

9. The lidar according to claim 8, characterized in that, The angle between the optical window and the bottom surface of the radar body is 80°.

Images