Laser radar heat dissipation structure

Abstract

The invention relates to a laser radar heat dissipation structure which comprises a laser radar outer cover, a top cover is arranged at the top of the laser radar outer cover, and a link block fixed to the laser radar outer cover is arranged on the lower surface of the top cover. The temperature in the laser radar outer cover can be reduced, the performance of a laser radar product is improved, and the service life of the laser radar product is prolonged.

Description

Technical Field

[0001] This invention relates to the field of lidar technology, and in particular to a lidar heat dissipation structure. Background Technology

[0002] In recent years, LiDAR technology has developed rapidly. From its initial use in laser ranging, it has evolved to include laser velocimetry, laser scanning imaging, and laser Doppler imaging. LiDAR is now found in fields such as autonomous driving, AGVs, and robotics. The LiDAR housing, serving as both an optical window and a protective structure, directly impacts the operational stability, detection accuracy, and lifespan of the core components (transmitter, receiver, and signal processing module). The heat dissipation bottleneck of the LiDAR housing stems from the constraints of its structural design and operating environment. The housing must balance sealing and light transmission, limiting heat dissipation channels. Furthermore, the harsh conditions of high temperature, high humidity, and strong vibration in the operating environment further exacerbate the heat dissipation problem. Summary of the Invention

[0003] The purpose of this invention is to provide a heat dissipation structure for lidar, which can reduce the temperature inside the lidar housing, improve the performance of lidar products, and extend their service life.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a lidar heat dissipation structure, including a lidar housing, a top cover being provided at the top of the lidar housing, and a connecting block being provided on the lower surface of the top cover for fixing to the lidar housing.

[0005] Furthermore, a support block is provided at the edge of the top cover to be fixed to the lidar housing.

[0006] Furthermore, the lidar housing is hemispherical in shape.

[0007] Furthermore, the connecting block is fixed to the lidar housing by dispensing adhesive or welding.

[0008] Furthermore, the diameter of the top cover is 27-29 mm and the thickness is 1-2 mm.

[0009] Furthermore, the link block consists of two arc blocks.

[0010] Furthermore, the arc block has a diameter of 14.6 mm and a diameter of 10 mm.

[0011] Furthermore, the length is 1.5 mm, the thickness is 1 mm, and the height is 1 mm.

[0012] Furthermore, both the lidar housing and the top cover are made of polycarbonate (PC) injection molding.

[0013] Furthermore, a low-reflection film is provided on the lidar housing.

[0014] The beneficial effects of this invention are as follows: Through structural design optimization, this invention adds a top cover to the non-optical area on the top of the lidar housing, reducing the amount of infrared light entering the lidar housing, thereby lowering the temperature inside the lidar housing, improving the performance of the lidar product, and extending its service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the lidar outer casing structure of the present invention; Figure 3 This is a schematic diagram of the top cover structure of the present invention; Figure 4 This is a schematic diagram of the structure from a top-down view of the top cover.

[0016] Among them: 1-LiDAR outer cover, 2-Top cover, 3-Support block, 4-Connecting block. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings. For better understanding, the orientation of the present invention is described according to the orientation shown in the accompanying drawings and should not be construed as a limitation of this application; the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] Please see Figures 1 to 3 This invention provides an embodiment of a lidar heat dissipation structure, including a lidar housing 1, a top cover 2 at the top of the lidar housing 1, and a connecting block 4 fixed to the lidar housing 1 on the lower surface of the top cover 2. This invention, by adding a top cover 2 to the lidar housing 1 as a lidar heat dissipation structure, can reduce infrared radiation returning to the lidar housing, reduce the source of heat, thereby solving internal problems of the lidar, improving product performance, and extending its service life.

[0019] Please continue reading. Figure 1 , Figure 2 As shown, in one embodiment of the present invention, a support block 3 fixed to the lidar cover 1 is provided at the edge of the top cover 2.

[0020] Please continue reading. Figure 1 , Figure 2 As shown, in one embodiment of the present invention, the lidar housing 1 is hemispherical in shape.

[0021] Please continue reading. Figure 1As shown, in one embodiment of the present invention, the connecting block 4 is fixed to the lidar housing 1 by dispensing glue or welding.

[0022] Please continue reading. Figure 1 As shown, in one embodiment of the present invention, the diameter of the top cover 2 is 27-29 mm and the thickness is 1-2 mm.

[0023] Please continue reading. Figure 1 As shown, in one embodiment of the present invention, the link block 4 consists of two arc blocks.

[0024] Please continue reading. Figure 1 As shown, in one embodiment of the present invention, the diameter of the arc block is 14.6 mm and the diameter is 10 mm.

[0025] Please continue reading. Figure 1 As shown, in one embodiment of the present invention, the length is 1.5 mm, the thickness is 1 mm, and the height is 1 mm.

[0026] Please continue reading. Figure 1 As shown, in one embodiment of the present invention, both the lidar cover 1 and the top cover 2 are injection molded from polycarbonate (PC). The present invention designs the lidar cover 1 and the top cover 2 as a composite structure made of infrared-transparent polycarbonate (PC), combining high light transmittance with efficient thermal conductivity, thereby overcoming the heat dissipation bottleneck and improving the overall reliability of the system.

[0027] Please continue reading. Figure 1 As shown, in one embodiment of the present invention, a low-reflection film is provided on the lidar housing 1. The coating on the surface of the lidar housing 1 achieves near-infrared high transmittance and low reflectance functionality.

[0028] The present invention has the following working principle: a top cover 2 is added to the non-optical area on the top of the lidar housing 1 to reduce the amount of infrared light entering the lidar housing 1, thereby reducing the temperature inside the lidar housing 1, improving the performance of the lidar product, and extending its service life.

[0029] The above description is only a preferred embodiment of the present invention and should not be construed as a limitation of this application. All equivalent changes and modifications made in accordance with the scope of the patent application of the present invention should be covered by the present invention.

Claims

1. A heat dissipation structure for a lidar system, characterized in that: The device includes a lidar housing, with a top cover at the top and a connecting block fixed to the lidar housing on the lower surface of the top cover.

2. The heat dissipation structure for a lidar according to claim 1, characterized in that: A support block is provided at the edge of the top cover to be fixed to the lidar housing.

3. The heat dissipation structure for a lidar according to claim 1, characterized in that: The lidar housing is hemispherical in shape.

4. The heat dissipation structure for a lidar according to claim 1, characterized in that: The connecting block is fixed to the lidar housing by dispensing glue or welding.

5. The heat dissipation structure for a lidar according to claim 1, characterized in that: The diameter of the top cover is 27-29 mm and the thickness is 1-2 mm.

6. The heat dissipation structure for a lidar according to claim 1, characterized in that: The link block consists of two arc blocks.

7. The heat dissipation structure for a lidar according to claim 1, characterized in that: The arc blocks have diameters of 14.6 mm and 10 mm.

8. The heat dissipation structure for a lidar according to claim 1, characterized in that: The length is 1.5mm, the thickness is 1.5mm, and the height is 1mm.

9. The heat dissipation structure for a lidar according to claim 1, characterized in that: The lidar cover and top cover are both made of polycarbonate (PC) injection molding.

10. A heat dissipation structure for a lidar according to claim 1, characterized in that: The lidar housing is equipped with a low-reflection film.

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