Laser radar system and automatic driving equipment

Abstract

The utility model discloses a laser radar system and automatic driving equipment. The laser radar system comprises a laser radar and a heat dissipation assembly. The laser radar comprises a shell, a transmission port and a processor, the heat dissipation assembly comprises a heat dissipation shell, a fan and a fan connector, the space between the heat dissipation shell and the shell is filled with a heat conduction pad, the first end of the fan connector is electrically connected with the processor through the transmission port, and the second end of the fan connector is electrically connected with the first end of the fan; the heat dissipation shell comprises an air inlet and heat dissipation teeth, the second end of the fan comprises an air outlet, and the air inlet is located between the heat dissipation teeth and the air outlet. The active heat dissipation assembly is additionally arranged, so that the environment temperature in the laser radar shell is effectively controlled, and the working stability of the laser radar is improved.

Description

Technical Field

[0001] The utility model relates to the field of laser radar, and in particular to a laser radar system and automatic driving equipment. Background Art

[0002] LiDAR, a precision instrument that uses laser pulses for ranging and sensing, has been widely used in fields such as autonomous driving, industrial mapping, robotics, and smart transportation. However, the continuous expansion of LiDAR applications and evolving market demands have placed higher demands on the operational stability of LiDAR systems. The ambient temperature within the LiDAR housing is a significant factor affecting its detection performance and operational stability.

[0003] In existing technologies, passive cooling technology is often used to regulate the ambient temperature inside LiDAR to ensure its operational stability at varying ambient temperatures. However, this passive cooling technology is ineffective in high-temperature environments and cannot effectively meet the normal operation requirements of LiDAR at higher ambient temperatures, thus affecting its operational stability. Therefore, there is an urgent need to develop an efficient active cooling technology to improve the heat dissipation capabilities of LiDAR at higher ambient temperatures. Utility Model Content

[0004] In order to improve the working stability of a laser radar, the utility model discloses a laser radar system and an automatic driving device.

[0005] In a first aspect, the present application discloses a laser radar system, the system comprising a laser radar and a heat dissipation component;

[0006] The laser radar includes a housing, a transmission port, and a processor; the heat dissipation assembly includes a heat dissipation housing, a fan, and a fan connector; a thermal pad is filled between the heat dissipation housing and the housing; a first end of the fan connector is electrically connected to the processor through the transmission port, and a second end of the fan connector is electrically connected to the first end of the fan;

[0007] The heat dissipation housing includes an air inlet and heat dissipation teeth, and the second end of the fan includes an air outlet, wherein the air inlet is located between the heat dissipation teeth and the air outlet.

[0008] In some embodiments, the housing includes a through hole; the first end of the transmission port is electrically connected to the processor, and the second end of the transmission port includes a substrate and a connector extending from the substrate; the connector includes a slot, wherein the connector passes through the through hole, and the first end of the fan connector is embedded in the slot.

[0009] In some embodiments, a sealing strip is placed between the substrate and the housing, and the sealing strip surrounds the through-hole. This effectively prevents moisture or dust from entering the LiDAR through the gap between the through-hole and the connector, ensuring that the LiDAR's sealing performance meets stringent automotive regulations.

[0010] In some embodiments, the heat dissipation assembly further includes a mounting base and a heat dissipation copper pipe, wherein the housing is fixed to the mounting base, the fan is fixed to the mounting base, the heat dissipation housing is fixed to the mounting base, and the heat dissipation copper pipe is located between the mounting base and the housing. By adding a heat dissipation element between the mounting base and the housing, the heat conduction efficiency between the two can be effectively improved, thereby enhancing the heat dissipation performance of the lidar.

[0011] In some embodiments, the housing includes a first shell and a second shell, wherein the through hole is located in the first shell, the thermal pad is located between the first shell and the heat dissipation shell, the heat dissipation shell is fixed to the second shell, and the fan is fixed to the second shell. The heat dissipation assembly is directly fixed to the extension of the second shell, eliminating the need for an additional mounting base plate, simplifying the system structure while shortening the heat conduction path and improving the heat dissipation performance of the lidar.

[0012] In some embodiments, the heat dissipation assembly further includes an air duct, which, together with the first housing and the second housing, forms an air duct, wherein the heat dissipation housing and the fan are located within the air duct. The provision of the air duct can enhance the heat dissipation effect of the cooling air and effectively improve the heat dissipation performance of the entire device.

[0013] In some embodiments, the air scoop, the second housing, and the heat dissipation housing collectively form a heat dissipation cavity, wherein the heat dissipation housing includes the heat dissipation teeth within the heat dissipation cavity, and the second housing includes heat dissipation columns within the heat dissipation cavity. Adding a heat dissipation structure to the second housing can further enhance the heat dissipation performance of the lidar system.

[0014] In some embodiments, the air guide cover includes an air inlet hole, wherein the air inlet hole is a combination of one or more of circular, diamond-shaped, triangular or rectangular.

[0015] In some embodiments, the laser radar further includes a temperature sensor, and the processor is configured to adjust the power of the fan according to a temperature value detected by the temperature sensor. The temperature sensor can be used to more efficiently and accurately control the ambient temperature within the laser radar.

[0016] In a second aspect, an embodiment of the present application discloses an autonomous driving device, comprising a vehicle body and any one of the above-described laser radar systems installed on the vehicle body.

[0017] This application discloses a laser radar system, including a laser radar body and a heat dissipation component. By adding an active heat dissipation component to the outside of the laser radar housing, the heat dissipation performance of the laser radar system can be effectively improved, and efficient control of the ambient temperature inside the laser radar housing can be achieved. In addition, the fan inside the heat dissipation component is directly powered and controlled by the laser radar, effectively reducing the complexity of the system wiring and simplifying external control requirements. A temperature sensor is also provided inside the laser radar to monitor the ambient temperature inside the housing and intelligently control the start and stop of the fan and adjust the operating power, thereby improving the working stability and reliability of the laser radar in high-temperature environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application.

[0019] Figure 1 Schematic diagram of the structure of a laser radar system disclosed in an embodiment of the present application;

[0020] Figure 2 Schematic diagram of the structure of a laser radar system disclosed in an embodiment of the present application;

[0021] Figure 3 This is a schematic structural diagram of a first transmission port disclosed in an embodiment of the present application;

[0022] Figure 4 Schematic diagram of the structure of a laser radar system disclosed in an embodiment of the present application;

[0023] Figure 5 Schematic diagram of the structure of a laser radar system disclosed in an embodiment of the present application;

[0024] Figure 6 Schematic diagram of the structure of a laser radar system disclosed in an embodiment of the present application;

[0025] Figure 7 Schematic diagram of the structure of a laser radar system disclosed in an embodiment of the present application;

[0026] Figure 8 Schematic diagram of the structure of a laser radar system disclosed in an embodiment of the present application;

[0027] Figure 9 This is a temperature simulation diagram of a laser radar system disclosed in an embodiment of the present application.

[0028] Explanation of the reference numerals: 100, outer shell; 110, first shell; 120, second shell; 121, heat dissipation column; 130, third shell; 140, window piece; 200, heat dissipation assembly; 210, heat dissipation shell; 211, air inlet; 212, heat dissipation teeth; 220, fan; 230, fan connector; 240, mounting base; 250, thermal pad; 260, air guide cover; 261, air inlet; 310, first transmission port; 311, substrate; 312, connector; 313, first sealing strip; 314, second sealing strip; 320, second transmission port. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of this application more apparent, embodiments of the present application will be further described in detail below with reference to the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, identical numbers in different drawings represent identical or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Instead, they are merely examples of structures consistent with certain aspects of this application, as detailed in the appended claims.

[0030] The ambient temperature inside the LiDAR is an important factor affecting the detection performance and working stability of the LiDAR. Under high ambient temperature, many problems such as increased thermal noise of electronic components, accelerated aging of electronic components, laser wavelength drift, degradation of optical coatings or thermal expansion of optical surfaces are likely to occur, thereby affecting the detection accuracy and service life of the LiDAR. LiDARs in existing technical solutions usually use passive heat dissipation technology. This passive heat dissipation technology relies on heat exchange between the LiDAR housing and the external environment of the housing, or by transferring heat to the heat dissipation structure on the housing to achieve heat dissipation. Although this solution can meet the conventional temperature range requirements of the automotive field (-40℃ to 85℃) to a certain extent, its heat dissipation effect is poor when facing more extreme temperature requirements (such as -40℃ to 130℃). In addition, as the performance of LiDAR continues to improve, the heat generated by the precision components inside the LiDAR (such as processors and lasers) continues to increase, and the heat dissipation performance of the passive heat dissipation structure is even more insufficient, which in turn affects the working stability and reliability of the LiDAR.

[0031] In order to improve the performance stability and reliability of laser radar in high temperature environments, the embodiment of the present application discloses a laser radar system, which can effectively enhance the heat dissipation performance of the laser radar without affecting the sealing effect of the laser radar, ensuring that the laser radar body meets the high vehicle protection standards (IP6K9K and IP6K7) and effectively protects the equipment from dust, water and steam.

[0032] In one embodiment, Figure 1As shown, the laser radar system includes a laser radar body and a heat dissipation assembly 200. The laser radar includes a transmitting module, a receiving module, a main control circuit board, a housing 100, a first transmission port 310, and a second transmission port 320. The main control circuit board includes a processor and a power supply module. The heat dissipation assembly 200 includes a heat dissipation housing 210, a fan 220, and a fan connector 230. Among them, the first transmission port 310 and the second transmission port 320 are both electrically connected to the processor, and the power supply module is electrically connected to the processor, the first transmission port 310, and the second transmission port 320 respectively. The first end of the fan connector 230 is plugged into the first transmission port 310, and the second end of the fan connector 230 is electrically connected to the first end of the fan 220.

[0033] In one embodiment, heat generated by heat-generating components within the LiDAR, such as the laser in the transmitting module, the receiving chip in the receiving module, and the processor and processing circuitry on the main control circuit board, is conducted to the housing 100, which then conducts the heat to the heat dissipation housing 210 via the housing 100. A fan 220 is used to generate cooling air to accelerate air flow within the heat dissipation housing 210. In one example, the processor is used to send control instructions to the fan 220 via the first transmission port 310 to control the fan 220's on / off state and operating power. The processor is also used to control the power supply module to supply power to the fan 220 via the first transmission port 310. In another example, an external cable supplies power to the LiDAR and exchanges data with the LiDAR via the second transmission port 320. The processor is used to control the power supply module to transmit power supplied by the external cable to the fan 220. The fan 220 is directly powered and controlled by the LiDAR, reducing the overall wiring complexity of the LiDAR system and simplifying external control requirements.

[0034] In one example, the housing 100 includes a first shell, a second shell, and a side cover, wherein the first shell covers the second shell, and the side cover is installed on the opening of the first shell. Figure 2As shown, the heat dissipation assembly 200 also includes a mounting base 240. The second housing, heat dissipation housing 210, and fan 220 are all secured to the mounting base 240 by screws or glue. The heat dissipation housing 210 includes a plurality of rectangular plate-shaped heat dissipation teeth (not shown) to increase the heat dissipation area and enhance the heat dissipation performance of the heat dissipation housing 210. The heat dissipation housing 210 also includes an air inlet 211. The air outlet at the second end of the fan 220 corresponds to the air inlet 211 on the heat dissipation housing 210. The air inlet 211 is located between the heat dissipation teeth and the air outlet. This allows the cooling air generated by the fan 220 to be blown from the air inlet 211 to the heat dissipation teeth within the heat dissipation housing 210, thereby accelerating air flow within the heat dissipation housing 210 and enhancing the heat dissipation function of the heat dissipation housing 210. Alternatively, the fan 220 is used to draw air out of the heat dissipation housing 210 to enhance the heat exchange efficiency between the air inside the heat dissipation housing 210 and the air outside the heat dissipation housing 210, thereby reducing the ambient temperature within the lidar. In the above embodiment, the heat dissipation teeth are formed by extending from the inner wall of the heat dissipation housing 210 close to the outer shell 100, and the heat dissipation groove between two adjacent heat dissipation teeth has the function of rectifying and guiding the cooling air, thereby accelerating the air flow.

[0035] In one embodiment, the first transmission port 310 is Figure 3 As shown, the first end of the first transmission port 310 is electrically connected to the processor, and the second end of the first transmission port 310 includes a substrate 311 and a connector 312 extending from the substrate 311. The housing 100 includes a through hole, and the connector 312 passes through the through hole and is electrically connected to the first end of the fan connector 230. In one example, the first end of the first transmission port 310 is electrically connected to the main control circuit board through an adapter plate. The connector 312 includes a slot, and the first end of the fan connector 230 is embedded in the slot. The outer wall of the connector 312 includes a boss, and the outer wall of the first end of the fan connector 230 also includes a bayonet. A snap-fit structure is formed between the boss and the bayonet to achieve rapid positioning of the two, and enhance the connection stability between the fan connector 230 and the connector 312, thereby improving installation efficiency and the stability of the connection structure.

[0036] In the above embodiment, since the through hole opened on the housing 100 will affect the sealing performance of the laser radar, in one embodiment, multiple sealing strips (sealing rubber rings) are also filled between the substrate 311 at the first end of the first transmission port 310 and the housing 100. The multiple sealing strips are arranged around the through hole to ensure the waterproof and dustproof sealing effect of the laser radar. In one example, the sealing strips include a first sealing strip 313 and a second sealing strip 314 that abut each other, and the first sealing strip 313 is an annular sealing rubber ring. The first sealing strip 313 and the second sealing strip 314 are arranged around the through hole on the substrate 311 at the first end of the first transmission port 310 to prevent moisture or dust from entering the interior of the laser radar through the gap between the through hole and the connector 312, thereby affecting the detection performance of the laser radar. In another example, the substrate 311 and the housing 100 are screwed together, so that the first sealing strip 313 and the second sealing strip 314 produce a certain amount of compression to achieve a compression seal.

[0037] In one embodiment, Figure 1 and Figure 2 As shown, since the heat dissipation housing 210, the mounting base 240, and the outer shell 100 are split structures, the heat conduction efficiency between the different housings is poor. To improve the heat dissipation effect of the laser radar, in one example, the heat dissipation assembly 200 further includes a thermal pad 250, wherein the thermal pad 250 is located between the heat dissipation housing 210 and the outer shell 100 to accelerate the heat exchange between the heat dissipation housing 210 and the outer shell 100. The thermal pad 250 can be fixed to the surface of the heat dissipation housing 210 or the outer shell 100 by gluing. The material of the thermal pad 250 includes a combination of one or more of silicone, silicon carbide, copper, or aluminum. The shape of the thermal pad 250 can be designed according to the shape of the contact area between the heat dissipation housing 210 and the outer shell 100 to fully cover the contact surface of the heat dissipation housing 210 and the outer shell 100, thereby improving the heat conduction efficiency between the two. In another example, the heat dissipation assembly 200 further includes a heat dissipation copper tube or a liquid cooling tube filled with condensate (not shown in the figure). The heat dissipation copper tube or liquid cooling tube is embedded in the mounting base plate 240 and located between the mounting base plate 240 and the housing 100. The heat dissipation copper tube or liquid cooling tube is used to transfer the heat generated by the components mounted on the bottom shell of the laser radar to the mounting base plate 240, and then to exchange heat with the external environment via the mounting base plate 240. The size of the heat dissipation copper tube or liquid cooling tube can be adjusted according to the size of the laser radar housing 100 and the actual heat dissipation requirements, thereby effectively improving the heat dissipation performance of the laser radar. In addition, since the heat dissipation components such as the thermal pad 250 and the heat dissipation copper tube are of a split structure with the laser radar housing 100, this type of heat dissipation component is suitable for laser radars of different types and sizes. The heat dissipation components such as the thermal pad 250 and the heat dissipation copper tube are relatively easy to disassemble and can be arranged in areas on the laser radar housing that require higher heat dissipation performance.

[0038] In one embodiment, Figures 4 to 7 As shown, the housing 100 of the laser radar includes a first shell 110, a second shell 120, a side cover 130, and a window 140. In one example, the first shell 110 covers the second shell 120. The first shell 110 includes a first opening, a second opening, and a through hole for accommodating the connector 312. The side cover 130 is mounted on the first opening, and the window 140 is mounted on the second opening. The laser beam emitted by the transmitting module is used to be transmitted outward through the window 140. The second transmission port 320 is located on the side cover 130. The first shell 110 and the second shell 120 are fixed together using screws, and a sealing strip is also filled between the first shell 110 and the second shell 120 to achieve contact sealing. A sealing strip is filled between the first shell 110 and the side cover 130 to achieve contact sealing, and the window 140 and the first shell 110 are adhesively sealed.

[0039] In one example, the first shell 110, the second shell 120 and the side cover 130 together form an internal chamber of the laser radar. The main control circuit board, the transmitting module, the receiving module and other components are all located in the internal chamber. The heat dissipation shell 210 and the fan 220 are fixed to the extension of the second shell 120 based on screw locking or glue bonding. The heat dissipation assembly 200 also includes an air guide cover 260, and the first shell 110 includes an installation step that abuts the air guide cover 260. After the air guide cover 260 and the installation step are fixedly connected based on screw locking or glue, the air guide cover 260, the first shell 110 and the second shell 120 together form an air duct, and the heat dissipation shell 210, the fan 220 and the fan connector 230 are all located in the air duct. The air guide cover 260 includes a plurality of air inlet holes 261, and the air inlet holes 261 are a combination of one or more of circular, diamond, triangular or rectangular shapes. The porous design is conducive to increasing the air intake space and increasing the air intake volume. Figure 1 and Figure 2 The embodiment shown is different. Figures 4 to 7 The heat dissipation assembly 200 shown here eliminates the mounting base 240. By expanding the area of the second housing 120, the heat dissipation housing 210 and fan 220 are mounted on an extension of the second housing 120, which serves as the bottom shell of the LiDAR. This allows the heat dissipation assembly 200 to be integrated with the LiDAR housing 100, eliminating the need for an additional mounting base 240 to secure the heat dissipation assembly 200 and simplifying the heat dissipation assembly structure. Furthermore, the extension of the second housing 120 contributes to the construction of the air duct. By optimizing the air duct structure, the wind pressure and air volume can be increased, effectively dissipating the hot air within the heat dissipation housing 210. Furthermore, since the mounting base 240 is eliminated, the relevant components mounted on the bottom of the LiDAR can be directly cooled by the second housing 120, shortening the heat dissipation path.

[0040] In one embodiment, Figure 8As shown, the heat dissipation shell 210, the wind guide cover 260 and the second shell 120 together form a heat dissipation cavity, and the cooling wind generated by the fan 220 is blown into the heat dissipation cavity from the air inlet 211. The heat dissipation shell 210 includes heat dissipation teeth 212 in the heat dissipation cavity, and the second shell 120 includes a plurality of heat dissipation columns 121 in the heat dissipation cavity. In one example, the heat dissipation teeth 212 are rectangular plate structures or fan-shaped plate structures, and the heat dissipation columns 121 are cylindrical, conical, truncated cone or rectangular plate structures. The heat dissipation columns 121 are formed on the extension portion of the second shell 120 and extend into the heat dissipation cavity. In one example, after the fan 220 is started, the temperature of the heating center of the lidar system drops from about 126°C to about 126°C. Figure 9 As shown in FIG. 112.18° C., the fan 220 can effectively improve the heat dissipation performance of the laser radar system by simultaneously dissipating heat from the heat dissipation teeth 212 and the heat dissipation columns 121 and cooperating with the air duct.

[0041] In some embodiments, the installation position of the heat dissipation assembly 200 can be flexibly adjusted according to the installation position of the components with higher heat generation (such as lasers or processors) in the laser radar. The installation positions include both sides of the window 140, the top of the first shell 110, the bottom of the second shell 120, or the side end surface of the first shell 110. In one example, the emission module includes multiple laser emission arrays, and the laser emission array includes multiple lasers. The laser beam emitted by the emission module is used to be emitted outward through the window 140. Figures 5 to 8 As shown, the first shell 110 includes a first end face facing away from the laser emission direction and a second end face located on one side of the laser emission direction, wherein the installation position of the transmitting module on the second shell 120 is arranged close to the second end face. The heat dissipation shell 210 abuts against the first end face, and the heat dissipation shell 210 abuts against the second end face. Part of the heat dissipation teeth 212 extend on the shell wall on the side where the heat dissipation shell 210 abuts against the second end face to improve the heat dissipation effect at the installation position of the transmitting module. The installation position of the heat dissipation assembly 200 can be flexibly adjusted according to the layout of the internal components of the laser radar, so as to improve the heat dissipation performance of the laser radar in a targeted manner.

[0042] In some embodiments, the laser radar housing also includes at least one temperature sensor, which is used to obtain the ambient temperature inside the housing. The processor is used to control the duration, power or wind speed of the cooling wind generated by the fan according to the temperature value detected by the temperature sensor, so as to accurately control the ambient temperature inside the laser radar. In one example, the temperature sensor is used to obtain the ambient temperature around the transmitting module, and the processor is used to control the power of the fan according to the temperature value detected by the temperature sensor, timely adjust the ambient temperature at the transmitting module, and reduce the wavelength change of the laser caused by temperature drift. In one example, the power of the fan 220 is less than or equal to the maximum rated power of the fan 220. For example: when the temperature value is 50°C, the processor adjusts the power of the fan 220 to 1W, when the temperature value is 60°C, the processor adjusts the power of the fan 220 to 1.5W, and when the temperature value is 70°C, the processor adjusts the power of the fan 220 to 3W.

[0043] In some embodiments, the processor can be a field programmable gate array (FPGA), a system on chip (SoC), a central processing unit (CPU), a network processor (NP), a digital signal processing circuit, a micro controller unit (MCU), an application-specific integrated circuit (ASIC), or any combination thereof for implementing relevant functions.

[0044] In one embodiment, the present application discloses an autonomous driving device comprising a central controller, a vehicle body, and a laser radar system mounted on the vehicle body. In one example, the vehicle body includes a roof, a front, a side, and a rear. The laser radar system is mounted at one or more locations on the vehicle body (e.g., above the windshield), the front (e.g., below the front headlights), the side (e.g., a rearview mirror), or the rear (e.g., below the rear headlights). The central controller is used to control scanning by the laser radars mounted at one or more locations on the vehicle body, and the processor within the laser radars is used to control the start and stop of a fan and adjust operating power according to instructions from the central controller. In another example, the vehicle body is connected to the second transmission port 320 via an Ethernet cable, and the central controller exchanges information with the processor within the laser radar system via the Ethernet cable. The Ethernet cable supports Power over Ethernet (PoE) for bidirectional data and power transmission; or the Ethernet cable is a single-pair Ethernet (SPE) cable comprising a pair of twisted pairs, compatible with the Power on Data Line (PoDL) standard, for bidirectional data and power transmission. The laser radar system only needs to be connected to the control circuit or power supply circuit on the vehicle body through a single connector (the second transmission port 320), which significantly reduces the complexity of installation.

[0045] In the description of this application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention. In particular, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it includes the first feature being directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it includes the first feature being directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] The terms "and / or" and "and / or" used in this document describe the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. The singular forms "a" and "an" are also intended to include plural forms, unless the context clearly indicates otherwise. When the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof, that is, any and all combinations of one or more related listed items. The ordinal numbers such as "first" and "second" cited in the embodiments of the present application are merely identifiers and do not refer to other meanings such as a specific order or imply relative importance.

[0047] For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances. The "one or more embodiments" used herein do not refer to the same embodiment, but are based on any suitable combination of specific features, structures or characteristics. The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A laser radar system, characterized in that: The laser radar system includes a laser radar and a heat dissipation component; The laser radar includes a housing, a transmission port, and a processor; the heat dissipation assembly includes a heat dissipation housing, a fan, and a fan connector; a thermal pad is filled between the heat dissipation housing and the housing; a first end of the fan connector is electrically connected to the processor through the transmission port, and a second end of the fan connector is electrically connected to the first end of the fan; The heat dissipation housing includes an air inlet and heat dissipation teeth, and the second end of the fan includes an air outlet, wherein the air inlet is located between the heat dissipation teeth and the air outlet.

2. The laser radar system according to claim 1, characterized in that The housing includes a through hole; The first end of the transmission port is electrically connected to the processor, and the second end of the transmission port includes a substrate and a connector extending from the substrate; The connecting portion includes a slot, wherein the connecting portion passes through the through hole, and the first end of the fan connector is embedded in the slot.

3. The laser radar system according to claim 2, characterized in that A sealing strip is filled between the substrate and the shell, wherein the sealing strip is arranged around the through hole.

4. The laser radar system according to any one of claims 1 to 3, characterized in that: The heat dissipation assembly also includes a mounting base and a heat dissipation copper tube, wherein the outer shell is fixed on the mounting base, the fan is fixed on the mounting base, the heat dissipation shell is fixed on the mounting base, and the heat dissipation copper tube is located between the mounting base and the outer shell.

5. The laser radar system according to any one of claims 1 to 3, characterized in that: The housing includes a first shell and a second shell, wherein the through hole is located in the first shell, the thermal pad is located between the first shell and the heat dissipation shell, the heat dissipation shell is fixed on the second shell, and the fan is fixed on the second shell.

6. The laser radar system according to claim 5, characterized in that The heat dissipation assembly further includes an air guide cover, and the air guide cover, the first shell and the second shell together form an air duct, wherein the heat dissipation shell is located in the air duct, and the fan is located in the air duct.

7. The laser radar system according to claim 6, characterized in that The air guide cover, the second shell and the heat dissipation shell together form a heat dissipation cavity, wherein the heat dissipation shell includes the heat dissipation teeth in the heat dissipation cavity, and the second shell includes a heat dissipation column in the heat dissipation cavity.

8. The laser radar system according to claim 6, characterized in that The air guide cover includes an air inlet hole, wherein the air inlet hole is a combination of one or more of a circle, a diamond, a triangle or a rectangle.

9. The laser radar system according to claim 1, characterized in that The laser radar also includes a temperature sensor, and the processor is used to adjust the power of the fan according to the temperature value detected by the temperature sensor.

10. An automatic driving device, characterized in that: It comprises a car body and a laser radar system as described in any one of claims 1 to 9 installed on the car body.

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