Vehicle-road cooperative equipment and vehicle-road cooperative system

Abstract

The present application discloses a vehicle-road cooperative device and a vehicle-road cooperative system, which relate to the field of intelligent transportation technology. Among them, the vehicle-road cooperative device includes: a shell, which defines a closed cavity inside, and a liquid heat-conducting medium is arranged in the closed cavity; a main board is arranged in the closed cavity, and components are installed on the main board, and the components are immersed in the heat-conducting medium; a heat pipe radiator includes a condensation part and an evaporation part, the evaporation part is fitted to the components, and the condensation part is fitted to the inner wall of the shell. By adopting the above technical solution, the vehicle-road cooperative device of the embodiment of the present application has good sealing and heat dissipation performance, and has high working stability and reliability, and low subsequent maintenance costs.

Description

Technical Field

[0001] The present application relates to the field of intelligent transportation technology, and in particular to a vehicle-road cooperative device and a vehicle-road cooperative system. Background Art

[0002] Vehicle-road cooperative equipment is used in the field of intelligent transportation technology to provide vehicle-road cooperative services to vehicles. Vehicle-road cooperative equipment is usually deployed near the road to reduce the impact of latency and bandwidth.

[0003] In related technologies, vehicle-road cooperative equipment usually adopts air cooling. Since the vehicle-road cooperative equipment is deployed in an outdoor environment, it is greatly affected by outdoor environmental factors. For example, it is affected by factors such as ambient temperature, humidity, and air quality (sulfides, dust impurities, etc.). This may cause the components inside the vehicle-road cooperative equipment to age or fail, resulting in poor working reliability of the vehicle-road cooperative equipment and high subsequent maintenance costs. Summary of the invention

[0004] The present application provides a vehicle-road cooperative device and a vehicle-road cooperative system.

[0005] In a first aspect, an embodiment of the present application provides a vehicle-road cooperative device, comprising

[0006] The shell defines a closed cavity inside, and a liquid heat-conducting medium is arranged in the closed cavity;

[0007] A mainboard is arranged in the closed cavity, components are installed on the mainboard, and the components are immersed in the heat conducting medium;

[0008] The heat pipe radiator comprises a condensing part and an evaporating part which are separately arranged. The evaporating part is arranged on the component, and the condensing part is arranged on the inner wall of the shell.

[0009] In a second aspect, an embodiment of the present application provides a vehicle-road cooperative system, including a vehicle-road cooperative device according to the above-mentioned embodiment of the present application.

[0010] The vehicle-road cooperative equipment of the embodiment of the present application has good sealing and heat dissipation performance by adopting the above-mentioned technical solution, and has high working stability and reliability and low subsequent maintenance costs.

[0011] It should be understood that the contents described in the Summary of the Invention are not intended to limit the key or important features of the embodiments of the present application, nor are they intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and other features, advantages and aspects of the embodiments of the present application will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0013] Figure 1 is a perspective view of a vehicle-road cooperative device according to an embodiment of the present application;

[0014] Figure 2 is a schematic diagram of a partial structure of a vehicle-road cooperative device according to an embodiment of the present application;

[0015] Figure 3 It is a structural diagram of a vehicle-road cooperative device according to an embodiment of the present application. DETAILED DESCRIPTION

[0016] The following is a description of exemplary embodiments of the present application in conjunction with the accompanying drawings, including various details of the embodiments of the present application to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0017] like Figure 1 As shown, the vehicle-road cooperative device 1 of the embodiment of the present application includes: a shell 10, a main board 20 and a heat pipe radiator 30.

[0018] Specifically, the interior of the housing 10 defines a closed cavity 10a, and a liquid heat-conducting medium is disposed in the closed cavity 10a. That is, the interior of the housing 10 is a closed structure, so that the interior of the cavity 10a is isolated from the outside. Thus, it is possible to prevent impurities such as water or dust from the external environment from entering the interior of the cavity 10a, thereby achieving waterproof, dustproof and anti-corrosion effects. Furthermore, it is possible to prevent the liquid heat-conducting medium from leaking from the interior of the cavity 10a to the outside of the housing 10.

[0019] Exemplarily, the heat-conducting medium may be a liquid having insulation and good chemical inertness, specifically, the heat-conducting medium may be electronic fluorinated liquid, silicone oil, mineral oil (such as white oil) or other liquids. Preferably, electronic fluorinated liquid may be used as the heat-conducting medium, which has extremely low surface tension and kinematic viscosity and is non-flammable.

[0020] Exemplarily, the heat-conducting medium can be added to the cavity 10a or discharged as needed. Specifically, the top wall of the shell 10 is provided with an input hole and the bottom wall is provided with an output hole, and the input hole and the output hole are connected to the inside and outside of the cavity 10a. The heat-conducting medium can be added to the cavity 10a through the input hole, or discharged from the cavity 10a through the output hole. Therefore, on the one hand, the liquid level of the heat-conducting medium can be adjusted according to the position of the component 21 on the mainboard 20 to ensure that the component can be immersed in the heat-conducting medium. On the other hand, the high-temperature heat-conducting medium after heat exchange can be discharged and the low-temperature heat-conducting medium can be injected. After being cooled, the high-temperature heat-conducting medium after being discharged can be input into the cavity 10a for recycling.

[0021] The mainboard 20 is disposed in the closed cavity 10a, and the mainboard 20 is installed with components 21, and the components 21 are immersed in the heat-conducting medium. For example, the liquid level of the heat-conducting medium can be set higher than the mainboard 20, so that the components 21 on the mainboard 20 are immersed in the heat-conducting medium. As a support body for the components 21, the mainboard 20 can be a printed circuit board (PCB).

[0022] For example, Figure 2 As shown, the component 21 may be multiple and include a first component 211 and a second component 212. The first component 211 may be a central processing unit (CPU), a graphics processing unit (GPU) or other components with high heat generation, and the central processing unit and the graphics processing unit may be provided with one or more respectively; the second component 212 may be a memory or other components with low heat generation.

[0023] The heat pipe radiator 30 includes a condensation portion 32 and an evaporation portion 31 . The evaporation portion 31 is attached to the component 21 , and the condensation portion 32 is attached to the inner wall of the housing 10 .

[0024] Exemplarily, the heat pipe radiator 30 can adopt a separate heat pipe, and the heat pipe radiator 30 also includes a refrigerant that flows back and forth between the condensation part 32 and the evaporation part 31. Specifically, the refrigerant absorbs heat and evaporates in the evaporation part 31 and is converted from liquid to gas to absorb the heat emitted by the components 21 that are fitted with the evaporation part 31, so as to cool the components 21 in time. After the liquid refrigerant enters the condensation part 32, it exchanges heat with the outside through the wall body that is fitted with the condensation part 32, so that the heat emitted by the components 21 is finally conducted to the outside. After the refrigerant is converted from gas to liquid, it enters the evaporation part 31 to absorb heat and evaporate, and the cycle is repeated. Therefore, through the circulation of the refrigerant between the condensation part 32 and the evaporation part 31, the heat generated during the operation of the components 21 can be exported to the outside.

[0025] In a specific example, if Figure 2 As shown, the heat pipe radiator 30 may include a plurality of evaporation parts 31, and the plurality of evaporation parts 31 are arranged in one-to-one correspondence with the plurality of first components 211. The evaporation part 31 may be arranged in close contact with the first component 211 with a larger heat generation, so as to directly conduct the heat generated during the operation of the first component 211 to the condensation part 32, and then conduct it to the outside through the wall body in contact with the condensation part 32. The second component 212 is immersed in the heat-conducting medium, and the heat generated during the operation of the second component 212 can be directly conducted to the liquid heat-conducting medium. The density of the heat-conducting medium changes after absorbing heat and heating, and natural convection occurs inside the heat-conducting medium to realize heat transfer. The transferred heat is then conducted to the outside through the wall body in contact with the liquid heat-conducting medium. Therefore, in view of the different heat generation of each component 21, by setting the evaporation part 31 corresponding to the number of the first components 211, not only can a better heat dissipation effect be ensured for the first components 211 with a larger heat generation, but the number of the evaporation parts 31 can also be reduced, so that the number of the evaporation parts 31 set is more reasonable, thereby reducing the equipment cost of the heat pipe radiator 30.

[0026] It should be noted that the vehicle-road cooperative equipment in the related technology usually adopts air-cooling heat dissipation, that is, silicone grease (or thermal pad) is set on the thermal interface of the heat-generating chip of the mainboard and a fin-type air-cooling radiator is set. The outside cold air is introduced through the fan, and forced convection heat exchange with other components such as cooling fins and boards is performed to achieve heat transfer. This heat dissipation method cannot avoid the many disadvantages caused by outdoor environmental factors, resulting in low reliability of vehicle-road cooperative equipment and high subsequent operation and maintenance costs.

[0027] According to the vehicle-road cooperative device 1 of the embodiment of the present application, a closed cavity 10a is defined in the shell 10 and a liquid heat-conducting medium is provided in the closed cavity 10a, and the components 21 on the mainboard 20 are immersed in the heat-conducting medium. In this way, while meeting the sealing of the internal components 21, due to the large specific heat capacity of the liquid heat-conducting medium, heat transfer is achieved through natural convection heat exchange between the components 21 and the liquid heat-conducting medium, thereby achieving cooling of the components 21. Therefore, on the one hand, it can shield the influence of outdoor environmental factors, reduce the influence of dust impurities, environmental temperature and humidity, fan vibration and other factors, provide a more stable operating environment for the components 21, thereby reducing the failure rate of the components 21, reducing the operation and maintenance frequency and cost, and improving the stability of the whole system; on the other hand, the vehicle-road cooperative device 1 can also provide heat dissipation requirements for subsequent updated components 21, which is conducive to modular deployment and rapid delivery.

[0028] Furthermore, by providing a heat pipe radiator 30, and the evaporation part 31 of the heat pipe radiator 30 is arranged in close contact with the component 21, on the one hand, rapid heat conduction can be achieved for the component 21 with a large heat generation, and the thermal resistance in the heat conduction process is low; on the other hand, by fitting the condensation part 32 with the inner wall of the shell 10, the heat dissipation area of ​​the heat pipe radiator 30 can be increased, so that the heat can be quickly conducted from the closed cavity to the outside, thereby ensuring the constant temperature of the working environment of the component 21, and further improving the working reliability of the vehicle-road cooperative device 1.

[0029] In addition, compared with the vehicle-road cooperative equipment in the related art that adopts air cooling, the vehicle-road cooperative equipment 1 in the embodiment of the present application can achieve natural heat dissipation of the components 21 without the need to set up an air-cooled radiator, thereby saving energy consumption and reducing operating costs.

[0030] Therefore, the vehicle-road cooperative device 1 according to the embodiment of the present application has good sealing and heat dissipation performance, high working stability and reliability, and low subsequent maintenance costs.

[0031] In one example, reference Figures 1 to 3 As well as the vehicle-road cooperative device 1 described in each embodiment of the present application, the vehicle-road cooperative device 1 in the embodiment of the present application may be an edge computing server.

[0032] In another example, the vehicle-road cooperative device 1 can be set up near the road to provide vehicle-road cooperative services to unmanned vehicles.

[0033] In one embodiment, the heat pipe radiator 30 further includes a refrigerant conveying portion 33 , which is connected between the condensing portion 32 and the evaporating portion 31 , and an outer surface of the refrigerant conveying portion 33 is provided with a heat insulating layer.

[0034] For example, Figure 2 As shown, the refrigerant delivery part 33 can be constructed in a tubular shape and connected between the condensation part 32 and the evaporation part 31. Specifically, the refrigerant delivery part 33 includes a first refrigerant delivery pipe and a second refrigerant delivery pipe, the first refrigerant delivery pipe is used to deliver the refrigerant from the evaporation part 31 to the condensation part 32, and the second refrigerant delivery pipe is used to deliver the refrigerant from the condensation part 32 to the evaporation part 31. The first refrigerant delivery pipe and the second refrigerant delivery pipe are both provided with a heat insulation layer on the outside, and the heat insulation layer is made of a heat insulation material. In this way, the refrigerant can avoid heat exchange with the external heat transfer medium during the flow in the first refrigerant delivery pipe or the second refrigerant delivery pipe.

[0035] In one embodiment, the wall of the shell 10 is constructed as a hollow structure to define a refrigerant flow channel (not shown in the figure), and the refrigerant flow channel is connected to the internal cavity of the condensation part 32.

[0036] Exemplarily, the refrigerant flow channel can be provided on the wall at the top of the shell 10, and the refrigerant flow channel has an input end and an output end, the input end is connected to the internal cavity of the condensation part 32, and the output end is connected to the internal cavity of the evaporation part 31 through the second refrigerant delivery pipe. After the gaseous refrigerant in the condensation part 32 enters the refrigerant flow channel, it exchanges heat with the outside through the wall at the top of the shell 10, and the refrigerant is converted from gas to liquid after releasing heat and condensing, and flows back to the evaporation part 31 through the refrigerant delivery part 33 under the action of its own gravity; the liquid refrigerant exchanges heat with the components 21 arranged in contact with the evaporation part 31 in the evaporation part 31, and is converted from liquid to gas after absorbing heat and evaporating, and flows to the condensation part 32 through the second refrigerant delivery pipe, thereby circulating.

[0037] A refrigerant flow channel that circulates with the internal cavity of the condensation section 32 is provided in the wall of the shell 10 so that the gaseous refrigerant in the condensation section 32 enters the refrigerant flow channel and exchanges heat with the outside. This can improve the flow path of the gaseous refrigerant and increase the heat dissipation area of ​​the gaseous refrigerant, thereby improving the condensation efficiency of the gaseous refrigerant and further improving the heat dissipation efficiency of the heat pipe radiator 30.

[0038] In one embodiment, a heat dissipation fin 311 is disposed on the outer surface of the evaporation portion 31 , and a plurality of heat dissipation fins 311 are arranged at intervals.

[0039] Exemplarily, the first side of the evaporation portion 31 is arranged in close contact with the component 21, and the plurality of heat dissipation fins 311 can be arranged on the second side of the evaporation portion 31 away from the component 21, and / or, the plurality of heat dissipation fins 311 can be arranged on at least one third side of the evaporation portion 31, and the third side is a side adjacent to the first side. In addition, the plurality of heat dissipation fins 311 can be arranged at equal intervals. In this way, the contact area between the evaporator and the heat-conducting medium can be increased, and the heat exchange efficiency between the evaporator and the heat-conducting medium can be improved, thereby reducing the temperature of the component 21 and the heat-conducting medium around the component 21, and increasing a more stable operating temperature for the component 21.

[0040] Optionally, the height of the heat dissipation fins 311 is less than or equal to 15 mm, and the interval between adjacent heat dissipation fins 311 is greater than or equal to 5 mm.

[0041] It should be noted that if the height of the heat dissipation ribs 311 is greater than 15 mm and the spacing between adjacent heat dissipation ribs 311 is less than 5 mm, the cross-sectional area of ​​the passage formed between adjacent heat dissipation ribs 311 will be too large, and at the same time, the spacing between two adjacent heat dissipation ribs 311 will be too small. Since the heat-conducting medium has a certain surface tension and flow viscosity, the flow rate of the heat-conducting medium along the passage formed by two adjacent heat dissipation ribs 311 will be too low, thereby affecting the convection speed of the heat-conducting medium and reducing the heat diffusion efficiency of the heat-conducting medium. Therefore, by setting the height of the heat dissipation ribs 311 to be less than or equal to 15 mm and the spacing between adjacent heat dissipation ribs 311 to be greater than or equal to 5 mm, it can be ensured that the heat-conducting medium has a larger speed when flowing along the passage formed by two adjacent heat dissipation ribs 311, thereby ensuring the convection speed and heat diffusion efficiency of the heat-conducting medium.

[0042] Exemplarily, the heat sink fins 311 are telescopically arranged on the evaporation part 31, that is, the height of the heat sink fins 311 relative to the evaporation part 31 is adjustable. Thus, the telescopic amount of the heat sink fins 311, that is, the height of the heat sink fins 311 can be adjusted according to the heat exchange demand.

[0043] In one embodiment, there are multiple mainboards 20 arranged at intervals, and the ends of the mainboards 20 are detachably connected to the inner wall of the housing 10. There are multiple heat pipe radiators 30, and they are arranged corresponding to the multiple mainboards 20.

[0044] In one example, if Figure 1 As shown, the main board 20 is arranged vertically, and a plurality of main boards 20 are arranged at equal intervals in the horizontal direction. The lower end of the main board 20 is detachably connected to the bottom wall of the housing 10, so that when a component 21 fails, the main board 20 can be removed from the housing 10 and the component 21 can be repaired or replaced. The evaporation portion 31 of the heat pipe radiator 30 is fitted on the component 21 of the main board 20, and the condensation portion 32 is fitted on the bottom wall of the housing 10.

[0045] In other examples, the mainboard 20 may also be arranged in the horizontal direction, and a plurality of mainboards 20 may be arranged at equal intervals in the vertical direction, and the side ends of the mainboard 20 may be detachably connected to the side walls of the housing 10. The condensing portion 32 of the heat pipe radiator 30 is arranged in contact with the side walls of the housing 10.

[0046] In one embodiment, the outer surface of the housing 10 is provided with a heat conductive coating.

[0047] For example, the thermal conductive coating can be formed by spraying a material with good thermal conductivity on the outer surface of the housing 10. For example, the thermal conductive coating can be made of graphene material. Thus, the thermal resistance of the housing 10 can be reduced, the thermal conductivity of the housing 10 can be improved, and the heat exchange efficiency between the housing 10 and the external environment can be improved.

[0048] In one embodiment, Figure 3 As shown, a plurality of heat dissipation fins 11 are disposed on the outer surface of the housing 10 , and the plurality of heat dissipation fins 11 are arranged at intervals.

[0049] Exemplarily, the plurality of heat dissipation fins 11 are configured in a strip shape, and the plurality of heat dissipation fins 11 are arranged at equal intervals. The top surface, the bottom surface, and the plurality of side surfaces of the housing 10 may be respectively provided with a plurality of heat dissipation fins 11. The shape and size of the heat dissipation fins 11 may be specifically set according to the power and heat dissipation requirements of the components 21.

[0050] In one embodiment, Figure 3 As shown, the housing 10 includes a body and a top plate 12. The top of the body is provided with an opening, and the top plate 12 is detachably mounted on the top of the body to open and close the opening.

[0051] The main body includes a bottom plate and a plurality of side plates connected to the edge of the bottom plate, and the bottom plate and the plurality of side plates may be an integral part. The top plate 12 may be detachably connected to the upper edge of the side plate by snap-fit ​​connection or other means such as fasteners. During the assembly process of the vehicle-road cooperative device 1, the component 21 may be installed from the opening at the top of the main body to the inside of the main body, and then the top plate 12 may be installed on the top of the main body to close the opening, so that a closed cavity 10a is formed inside the shell 10. Thus, by providing a detachably connected top plate 12 at the top of the main body, the installation and disassembly of the main board 20 and the components 21 in the cavity 10a is more convenient, which facilitates the maintenance or replacement of the components 21. Preferably, a seal is provided between the top plate 12 and the upper edges of the plurality of side plates to seal the gap between the top plate 12 and the plurality of side plates, so as to further improve the sealing of the internal cavity 10a of the shell 10.

[0052] The vehicle-road cooperative system according to an embodiment of the present application includes the vehicle-road cooperative device 1 according to the above-mentioned embodiment of the present application.

[0053] In one embodiment, the vehicle-road cooperative system further includes a cloud server and a vehicle-side server, and any two of the vehicle-road cooperative device 1, the cloud server, and the vehicle-side server can exchange information. Specifically, the vehicle-road cooperative device 1 can receive information such as traffic congestion, traffic light time, and lane-level congestion time recorded by the cloud server in real time. During the driving process, the unmanned vehicle senses the road environment through the vehicle-side server, automatically plans the driving route, and exchanges signals with the vehicle-road cooperative device 1 and controls the vehicle when passing through each traffic intersection.

[0054] According to the vehicle-road cooperative system of the embodiment of the present application, by adopting the vehicle-road cooperative equipment according to the above-mentioned embodiment of the present application, the safety and reliability of automatic driving of unmanned vehicles can be improved, and the equipment cost is relatively low.

[0055] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0057] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0059] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numerals and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0060] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.

Claims

1. A vehicle-road cooperative device, characterized in that: include: A shell defines a closed cavity inside, wherein a liquid heat-conducting medium is arranged in the closed cavity; A mainboard is disposed in the closed cavity, the mainboard is equipped with components, and the components are immersed in the heat-conducting medium; The heat pipe radiator comprises a condensing part and an evaporating part, wherein the evaporating part is attached to the component, and the condensing part is attached to the inner wall of the shell; The heat pipe radiator also includes a refrigerant that flows back and forth between the condensation portion and the evaporation portion; The heat pipe radiator further comprises a refrigerant conveying portion, the refrigerant conveying portion is connected between the condensing portion and the evaporating portion, and an outer surface of the refrigerant conveying portion is provided with a heat insulation layer; The refrigerant delivery part includes a first refrigerant delivery pipe and a second refrigerant delivery pipe, the first refrigerant delivery pipe is used to deliver the refrigerant from the evaporation part to the condensation part, and the second refrigerant delivery pipe is used to deliver the refrigerant from the condensation part to the evaporation part, and the first refrigerant delivery pipe and the second refrigerant delivery pipe are both provided with a heat insulation layer on the outside; The wall of the shell is configured as a hollow structure to define a refrigerant flow channel, and the refrigerant flow channel is communicated with the internal cavity of the condensation part; The refrigerant flow channel has an input end and an output end, the input end is connected to the internal cavity of the condensation part, and the output end is connected to the internal cavity of the evaporation part through the second refrigerant delivery pipe; after the gaseous refrigerant in the condensation part enters the refrigerant flow channel, it exchanges heat with the outside through the wall at the top of the shell, and the refrigerant is converted from gas to liquid after releasing heat and condensing, and flows back to the evaporation part through the refrigerant delivery part under the action of its own gravity. The liquid refrigerant exchanges heat with the components attached to the evaporation part in the evaporation part, and is converted from liquid to gas after absorbing heat and evaporating, and flows to the condensation part through the second refrigerant delivery pipe, thereby circulating.

2. The vehicle-road cooperative device according to claim 1, characterized in that: The wall of the shell is constructed as a hollow structure to define a refrigerant flow channel, and the refrigerant flow channel is communicated with the internal cavity of the condensation part.

3. The vehicle-road cooperative device according to claim 1, characterized in that: The outer surface of the evaporation part is provided with a plurality of heat dissipation fins, and the plurality of heat dissipation fins are arranged at intervals.

4. The vehicle-road cooperative device according to claim 3, characterized in that: The height of the heat dissipation fins is less than or equal to 15 mm, and the spacing between adjacent heat dissipation fins is greater than or equal to 5 mm.

5. The vehicle-road cooperative device according to claim 1, characterized in that: The mainboards are multiple and spaced apart, and the mainboards are detachably connected to the inner wall of the shell; There are multiple heat pipe radiators, and the multiple heat pipe radiators are respectively arranged corresponding to the multiple mainboards.

6. The vehicle-road cooperative device according to any one of claims 1 to 5, characterized in that: The outer surface of the shell is provided with a heat-conducting coating.

7. The vehicle-road cooperative device according to any one of claims 1 to 5, characterized in that: The outer surface of the shell is provided with heat dissipation fins, and a plurality of the heat dissipation fins are arranged at intervals.

8. The vehicle-road cooperative device according to any one of claims 1 to 5, characterized in that: The shell comprises a body and a top plate. The top of the body is provided with an opening. The top plate is detachably mounted on the top of the body to open or close the opening.

9. A vehicle-road cooperative system, characterized in that: It comprises the vehicle-road cooperative device according to any one of claims 1 to 8.

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