Nozzle for lidar cleaning

Abstract

This utility model relates to the field of vehicle radar technology, and in particular to a nozzle for cleaning lidar, comprising a bracket and an insert. The bracket is mounted across the lidar, and the bracket has a distribution cavity and multiple mounting slots. The distribution cavity is connected to a cleaning source. The multiple mounting slots are arranged in a fan shape along the length of the bracket, and the mounting slots are connected to the distribution cavity, with the slot openings facing the lidar surface. The insert is inserted into the mounting slot and sprays fluid to clean the lidar surface. This utility model provides a lidar cleaning nozzle with a simple structural design, a small number of mounting slots, and excellent cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of vehicle radar technology, and in particular to a nozzle for cleaning lidar. Background Technology

[0002] Vehicle radar is a very important component in intelligent vehicles. In order to accurately detect the surrounding environment of the vehicle, in addition to improving the performance of the vehicle radar, it is also necessary to ensure that the radar surface of the vehicle radar is free from dirt that would hinder the passage of electromagnetic waves. Therefore, it is necessary to clean the dirt on the radar surface in a timely manner.

[0003] Currently, most nozzles used for cleaning vehicle radar systems are cylindrical in shape, with simple air outlet flow channel designs and a narrow spray angle range. However, to ensure thorough cleaning of the radar surface, a large number of air outlets are typically required, resulting in a complex structural design. Furthermore, the fluid ejected from the air outlets of existing nozzles has a relatively slow velocity and low impact force, leading to less than ideal cleaning results. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a laser radar cleaning nozzle with a simple structural design, a small number of mounting slots, and excellent cleaning effect.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a nozzle for cleaning a laser radar, including a bracket and an insert. The bracket is mounted across the laser radar. The bracket has a distribution cavity and multiple mounting slots. The distribution cavity is connected to a cleaning source. The multiple mounting slots are arranged in a fan shape along the length of the bracket. The mounting slots are connected to the distribution cavity and the openings of the mounting slots face the radar surface. The insert is inserted into the mounting slot and sprays fluid to clean the radar surface.

[0006] Furthermore, the insert includes a plate and an oscillating block. When the plate is inserted into the mounting groove, there is a gap between the plate and the bottom of the mounting groove, and the two sides of the plate along the thickness direction are tightly fitted to the sidewalls of the mounting groove. The plate has a main channel, an oscillation zone, a diffusion zone, and a spray nozzle on both sides along the thickness direction, and the main channel, oscillation zone, diffusion zone, and spray nozzle on the same side are connected in sequence. The main channels on both sides are connected through the gap, and the oscillating block is set in the oscillation zone and forms a drainage channel with the inner wall of the oscillation zone.

[0007] Furthermore, the insert also includes a blocking post, which is disposed within the main channel. Several blocking posts are arranged in an arc shape along the width direction of the main channel.

[0008] Furthermore, the insert also includes protruding ridges, which are respectively disposed on both sides of the plate along the width direction.

[0009] Furthermore, guide surfaces are provided on the top periphery of the plate.

[0010] Furthermore, the end of the oscillating block near the main channel is provided with a slope.

[0011] Furthermore, the bracket includes a mounting frame and a cover plate. The mounting frame is mounted across the lidar, the mounting groove is disposed on the mounting frame, and a groove is formed on the side of the mounting frame near the cover plate. The cover plate seals and closes to the opening of the groove to form a distribution cavity.

[0012] Furthermore, the bottom end of the mounting bracket is provided with a mounting hole, and a steel sleeve is provided inside the mounting hole.

[0013] Furthermore, it also includes pipes and fittings, one end of which is connected to a cleaning source via a fitting, and the other end of which is connected to a support and communicates with a dispensing chamber.

[0014] Furthermore, it also includes reinforcing ribs, which are respectively connected to the support and the pipe.

[0015] The beneficial effects of this utility model are:

[0016] (1) This utility model uses an oscillating insert to spray fluid to clean the radar surface. Compared with the columnar type, it significantly expands the spray angle range, thereby reducing the number of installation slots. Under the same pressure, due to the smaller number of installation slots, the pressure at the installation slots is greater, resulting in a greater impact force of the sprayed fluid and thus a better cleaning effect.

[0017] (2) This utility model sets up several blocking columns in the main channel to block foreign objects that may exist in the fluid transported by the clean source.

[0018] (3) In this utility model, the end of the oscillating block near the main channel is provided with an inclined surface to increase the collision area between the fluid and the oscillating block and further improve the oscillation effect. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is an exploded view of this utility model;

[0022] Figure 3 This is a schematic diagram of the mounting bracket in this utility model;

[0023] Figure 4 This is a cross-sectional view of the bracket in this utility model;

[0024] Figure 5This is a schematic diagram of the insert in this utility model;

[0025] Figure 6 This is a practical application diagram of this utility model.

[0026] In the diagram: 100, bracket; 110, mounting bracket; 111, distribution chamber; 112, mounting groove; 113, mounting hole; 114, distribution channel; 120, cover plate; 200, insert; 210, plate body; 211, main channel; 212, oscillation zone; 213, diffusion zone; 214, injection port; 215, drainage channel; 216, guide surface; 220, oscillation block; 221, inclined surface; 230, blocking column; 240, protruding ridge; 250, gap; 300, pipe; 400, joint; 500, reinforcing rib. Detailed Implementation

[0027] The present invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0028] like Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, a nozzle for cleaning a lidar includes a bracket 100 and an insert 200. The bracket 100 is mounted across the lidar. The bracket 100 has a distribution cavity 111 and multiple mounting slots 112. The distribution cavity 111 communicates with a cleaning source (not shown). The mounting slots 112 are arranged in a fan shape along the length of the bracket 100, communicating with the distribution cavity 111, and the openings of the mounting slots 112 face the lidar surface. The insert 200 is inserted into the mounting slot 112 to spray fluid to clean the lidar surface. Specifically, there are five mounting slots 112, but this is not a limitation. The mounting slots 112 communicate with the distribution cavity 111 through a distribution channel 114.

[0029] The radar surface is cleaned by spraying fluid using an oscillating impeller 200. Compared to a columnar impeller, this significantly expands the spray angle range, thereby reducing the number of mounting slots 112. Under the same pressure, the fewer mounting slots 112 result in greater pressure at each slot, leading to a stronger impact force from the sprayed fluid and thus better cleaning. Furthermore, the fewer mounting slots 112 simplify mold manufacturing and increase the yield rate of the plastic parts.

[0030] like Figures 1-3As shown, the bracket 100 includes a mounting frame 110 and a cover plate 120. The mounting frame 110 is mounted across the lidar, and a mounting groove 112 is disposed in the mounting frame 110. A groove is formed on the side of the mounting frame 110 near the cover plate 120, and the cover plate 120 seals and covers the opening of the groove to form a distribution cavity 111. Specifically, a mounting hole 113 is formed at the bottom end of the mounting frame 110, and a steel sleeve is provided in the mounting hole 113. The steel sleeve is made of 304 stainless steel. The connection between the mounting frame 110 and the cover plate 120 is made using a hot plate welding process, which provides better strength compared to ultrasonic welding.

[0031] like Figure 2 , Figure 4 and Figure 5 As shown, the insert 200 includes a plate 210 and an oscillating block 220. When the plate 210 is inserted into the mounting groove 112, there is a gap 250 between the plate 210 and the bottom of the mounting groove 112, and the two sides of the plate 210 along the thickness direction are tightly fitted to the sidewalls of the mounting groove 112 respectively. The plate 210 is provided with a main channel 211, an oscillation zone 212, a diffusion zone 213 and a spray nozzle 214 on both sides along the thickness direction, and the main channel 211, the oscillation zone 212, the diffusion zone 213 and the spray nozzle 214 on the same side are connected in sequence. The main channels 211 on both sides are connected through the gap 250. The oscillating block 220 is set in the oscillation zone 212 and forms a drainage channel 215 with the inner wall of the oscillation zone 212. Specifically, the top periphery of the plate 210 is provided with guide surfaces 216, which are arc surfaces to facilitate the insertion of the plate 210 into the mounting groove 112; the oscillating block 220 is arc-shaped; and the spray nozzle 214 is trapezoidal.

[0032] The fluid enters the main channel 211 from the distribution chamber 111 through the distribution channel 114. Then, part of it directly collides with the oscillating block 220, and part of it enters the drainage channel 215. The two parts of the fluid merge to form oscillation, and then flow to the diffusion zone 213, and finally spray out through the injection port 214.

[0033] like Figure 5 As shown, in order to increase the collision area between the fluid and the oscillating block 220 and further improve the oscillation effect, the end of the oscillating block 220 near the main channel 211 is provided with a slope 221.

[0034] like Figure 5 As shown, the insert 200 also includes a blocking post 230, which is disposed in the main channel 211. Several blocking posts 230 are arranged in an arc shape along the width direction of the main channel 211.

[0035] Several blocking pillars 230 are installed in the main channel 211 to block foreign objects that may exist in the fluid transported by the clean source.

[0036] like Figure 5As shown, the insert 200 also includes a protruding rib 240, which is respectively disposed on both sides of the plate 210 along the width direction, and plays the role of interference fit to ensure the sealing between the plate 210 and the mounting groove 112.

[0037] like Figure 3 As shown, the nozzle for cleaning lidar also includes a pipe 300 and a connector 400. One end of the pipe 300 is connected to the cleaning source via the connector 400, and the other end is connected to the bracket 100 and communicates with the distribution chamber 111. Specifically, one end of the pipe 300 and the connector 400 adopt a quick-connect type, which is easier to install, lighter, and more secure than the ordinary simple direct-insertion type, and is not easy to fall off; the other end of the pipe 300 is connected to the cover plate 120.

[0038] like Figure 3 As shown, the lidar cleaning nozzle also includes reinforcing ribs 500, which are connected to the bracket 100 and the pipe 300 respectively, improving the stability of the connection between the bracket 100 and the pipe 300. Specifically, the reinforcing ribs 500 are connected to the cover plate 120 and the pipe 300 respectively.

[0039] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A nozzle for cleaning lidar, characterized in that: The device includes a bracket (100) and a insert (200). The bracket (100) is mounted across the lidar. The bracket (100) has a distribution cavity (111) and multiple mounting slots (112) inside. The distribution cavity (111) is connected to a cleaning source. The multiple mounting slots (112) are arranged in a fan shape along the length of the bracket (100). The mounting slots (112) are connected to the distribution cavity (111), and the openings of the mounting slots (112) face the lidar surface. The insert (200) is inserted into the mounting slot (112) and sprays fluid to clean the lidar surface.

2. The nozzle for cleaning lidar according to claim 1, characterized in that: The insert (200) includes a plate (210) and an oscillating block (220). When the plate (210) is inserted into the mounting groove (112), there is a gap (250) between the plate (210) and the bottom of the mounting groove (112), and the two sides of the plate (210) along the thickness direction are tightly fitted to the sidewalls of the mounting groove (112). The plate (210) is provided with a main channel (211), an oscillation zone (212), a diffusion zone (213) and a spray nozzle (214) on both sides along the thickness direction, and the main channel (211), oscillation zone (212), diffusion zone (213) and spray nozzle (214) on the same side are connected in sequence. The main channels (211) on both sides are connected through the gap (250). The oscillating block (220) is set in the oscillation zone (212) and forms a drainage channel (215) with the inner wall of the oscillation zone (212).

3. The nozzle for cleaning lidar according to claim 2, characterized in that: The insert (200) also includes a blocking post (230), which is disposed in the main channel (211). Several blocking posts (230) are arranged in an arc shape along the width direction of the main channel (211).

4. The nozzle for cleaning lidar according to claim 2, characterized in that: The insert (200) also includes a protruding ridge (240), which is respectively disposed on both sides of the plate (210) along the width direction.

5. The nozzle for cleaning lidar according to claim 2, characterized in that: The top periphery of the plate (210) is provided with guide surfaces (216).

6. The nozzle for cleaning lidar according to claim 2, characterized in that: The end of the oscillating block (220) near the main channel (211) is provided with a slope (221).

7. The nozzle for cleaning lidar according to claim 1, characterized in that: The bracket (100) includes a mounting frame (110) and a cover plate (120). The mounting frame (110) is mounted across the lidar. The mounting groove (112) is provided on the mounting frame (110). A groove is provided on the side of the mounting frame (110) near the cover plate (120). The cover plate (120) seals and covers the opening of the groove to form a distribution cavity (111).

8. The nozzle for cleaning lidar according to claim 7, characterized in that: The mounting bracket (110) has a mounting hole (113) at its bottom end, and a steel sleeve is provided inside the mounting hole (113).

9. The nozzle for cleaning lidar according to claim 1, characterized in that: It also includes a pipe (300) and a connector (400), one end of which is connected to a cleaning source via the connector (400), and the other end of which is connected to a support (100) and communicates with a dispensing chamber (111).

10. The nozzle for cleaning lidar according to claim 9, characterized in that: It also includes reinforcing ribs (500), which are connected to the bracket (100) and the pipe (300) respectively.

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