Thermal management integrated system and new energy vehicle

Abstract

The application provides a thermal management integrated system and a new energy vehicle. The thermal management integrated system comprises a refrigerant device, a detection piece and a refrigerant dilution piece. The refrigerant device comprises a refrigerant integrated module and a protective cover, and the refrigerant integrated module has refrigerant therein. The protective cover is arranged outside the refrigerant integrated module. The protective cover has a first refrigerant discharge port at the bottom. The detection piece is arranged at the bottom in the protective cover, and the first refrigerant discharge port is arranged at the bottom of the detection piece. The detection piece can monitor the concentration of the refrigerant in the protective cover. The refrigerant dilution piece has a first inlet, a second inlet and a second refrigerant discharge port, the first inlet is communicated with the first refrigerant discharge port, the second inlet is communicated with a first air outlet of a cooling fan, and the second refrigerant discharge port is communicated with the first inlet and the second inlet respectively. The first refrigerant discharge port can form a negative pressure when the cooling fan and / or the vehicle is running, so that the refrigerant in the protective cover is sucked into the refrigerant dilution piece and mixed with air, the concentration of the refrigerant is reduced, and the refrigerant is safely discharged. The manufacturing cost is low.

Description

Technical Field

[0001] This application relates to the technical field, and in particular to a thermal management integrated system and a new energy vehicle. Background Technology

[0002] Propane refrigerant (R290 for short) is a natural hydrocarbon refrigerant. Compared to existing refrigerants in the thermal management integrated systems of new energy vehicles, R290 refrigerant has an ozone depletion potential of 0 and a global warming potential of 3, thus effectively improving the environmental performance of new energy vehicles. At the same time, R290 refrigerant has a high thermal conductivity and low flow resistance, which can improve the energy efficiency of the thermal management integrated system and reduce the operating energy consumption of thermal management.

[0003] R290 refrigerant is flammable, and its application in integrated thermal management systems poses a safety risk due to leakage. Therefore, various safety hazard mitigation methods are commonly employed in related technologies, including closed-loop solutions such as ignition-based leak prevention schemes. This involves installing a sealed protective container, an igniter, and a control unit within the integrated thermal management system. The sealed protective container is positioned at a leak-prone location. When a leak sensor detects a refrigerant leak, the control unit activates the igniter, igniting the leaking refrigerant within the protective container to eliminate the leak and prevent further R290 refrigerant leakage.

[0004] However, since vibrations and collisions during vehicle operation may cause the ignition device to be mistriggered, additional collision sensors and acceleration sensors are required to monitor mechanical impacts, resulting in higher manufacturing costs for the thermal management integrated system. Utility Model Content

[0005] This application provides a thermal management integrated system and a new energy vehicle to solve the problem that the thermal management integrated system requires multiple sensors and collision sensors to prevent refrigerant leakage, resulting in high manufacturing costs.

[0006] In a first aspect, embodiments of this application provide a thermal management integrated system, including:

[0007] A refrigerant device includes a refrigerant integration module and a protective cover. The refrigerant integration module contains refrigerant. The protective cover is located outside the refrigerant integration module. The bottom of the protective cover has a first refrigerant discharge port.

[0008] The detection element is located at the bottom of the protective cover, and the first refrigerant discharge port is located at the bottom of the detection element; the detection element is configured to monitor the concentration of refrigerant inside the protective cover.

[0009] A refrigerant dilution component is located outside the protective cover; the refrigerant dilution component has a first inlet, a second inlet, and a second refrigerant discharge port, the first inlet being connected to the first refrigerant discharge port, the second inlet being configured to be connected to the first air outlet of the cooling fan, and the second refrigerant discharge port being connected to both the first inlet and the second inlet; the first refrigerant discharge port is configured to create negative pressure when the cooling fan and / or the vehicle is running.

[0010] The thermal management integrated system provided in this application embodiment, by setting up a protective cover, can confine leaked refrigerant inside the cover, preventing refrigerant overflow. A detection element can monitor the refrigerant concentration inside the protective cover in real time. Since the density of refrigerant is generally greater than that of air, when refrigerant leaks into the protective cover, the leaked refrigerant can settle at the bottom of the cover. This allows the detection element located at the bottom of the cover to more accurately detect the refrigerant concentration, improving the accuracy of refrigerant concentration detection and eliminating the need for multiple detection elements. When the cooling fan is running or the vehicle is in operation, a negative pressure is created, drawing the refrigerant from the protective cover into the refrigerant dilution element through the first refrigerant discharge port. Because the first refrigerant discharge port is located below the detection element, the refrigerant must pass through the detection element first before flowing into the refrigerant dilution element through the first refrigerant discharge port, further enhancing the accuracy of the detection element in refrigerant concentration detection. Once the refrigerant enters the refrigerant dilution element, it can mix with air, diluting the refrigerant and reducing its concentration. The diluted refrigerant is then discharged through the second refrigerant discharge port, ensuring the safety of the integrated thermal management system.

[0011] Meanwhile, the thermal management integrated system employs negative pressure for refrigerant extraction and discharge, and positions the detection element above the first refrigerant discharge port, enabling more accurate detection of refrigerant concentration. Therefore, the thermal management integrated system provided in this application embodiment eliminates the need for multiple concentration sensors, pressure fluctuation sensors, temperature monitoring sensors, flame detectors, and collision sensors, thereby further reducing the manufacturing cost of the thermal management integrated system.

[0012] In some embodiments, the protective cover has a windward side facing the side where the first air outlet of the cooling fan is located;

[0013] The first refrigerant discharge port is located in an area of ​​the protective cover away from the windward side.

[0014] In some embodiments, the protective cover has a bottom wall with a first refrigerant discharge port on the bottom wall, and the detection element is disposed inside the protective cover on one side adjacent to the bottom wall.

[0015] The testing component is positioned opposite the first refrigerant discharge port and has a gap between it and the bottom wall for refrigerant to flow through.

[0016] In some embodiments, the bottom wall has a recessed area, the recessed area is provided with a first refrigerant discharge port, and the detection element is disposed in the recessed area.

[0017] In some embodiments, the refrigerant dilution element is configured to generate negative pressure at the first refrigerant discharge port.

[0018] In some embodiments, the refrigerant dilution component includes a contraction section, a throat, and a diffusion section, wherein the throat is disposed between the contraction section and the diffusion section and connects the contraction section and the diffusion section;

[0019] The first and second inlets are located on different sides of the contraction section, and the diffuser section has a second refrigerant discharge port at the end opposite to the throat.

[0020] In some embodiments, the protective cover includes a cover body and a connecting member, the cover body being disposed outside the refrigerant integration module;

[0021] The connecting member is located outside the protective cover. One end of the connecting member is connected to the inside of the cover, and the other end has a first refrigerant discharge port. The part of the connecting member with the first refrigerant discharge port is located inside the contraction section.

[0022] In some embodiments, the orientation of the second refrigerant discharge port is the same as the orientation of the second air outlet of the cooling fan, and the second air outlet and the first air outlet are located on the same side of the cooling fan.

[0023] In some embodiments, the protective cover is further provided with an air inlet in the area away from its windward side, and the air inlet is located in the top area of ​​the protective cover;

[0024] The refrigerant unit also includes a one-way flow element located inside the air inlet. The one-way flow element is configured to open when there is a negative pressure inside the protective cover, so that air from outside the protective cover can enter the protective cover.

[0025] In some embodiments, the one-way flow element includes a one-way valve.

[0026] In some embodiments, the check valve includes a valve body disposed within a protective cover;

[0027] One end of the valve body is connected to the protective cover, and the other end is located inside the air inlet to block the air outlet side of the air inlet; the valve body is configured to deform toward the side away from the air inlet when there is negative pressure inside the protective cover to open the air outlet side of the air inlet.

[0028] In some embodiments, the one-way valve further includes a reinforcement disposed within the valve body.

[0029] In some embodiments, the refrigerant includes propane refrigerant.

[0030] Secondly, embodiments of this application provide a new energy vehicle, including:

[0031] Cooling fan with a first air outlet;

[0032] In any of the thermal management integrated systems in the first aspect, the second inlet of the refrigerant dilution component in the thermal management integrated system is connected to the first air outlet.

[0033] The new energy vehicles in this application have the beneficial effects of the above-mentioned thermal management integrated system, which will not be repeated here. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 Schematic diagram of the thermal management integrated system and cooling fan provided in the embodiments of this application Figure 1 ;

[0036] Figure 2 Schematic diagram of the thermal management integrated system and cooling fan provided in the embodiments of this application Figure 2 ;

[0037] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0038] Figure 4 An exploded view of the thermal management integrated system provided in the embodiments of this application;

[0039] Figure 5 Examples of this application Figure 4 Schematic diagram of the structure of the protective shield;

[0040] Figure 6 A schematic diagram of the refrigerant and airflow provided in the embodiments of this application;

[0041] Figure 7 This is a schematic diagram of the assembly of the testing component within the protective cover, as provided in the embodiments of this application.

[0042] Figure 8 for Figure 6 Schematic diagram of the unidirectional flow component in the closed state Figure 1 ;

[0043] Figure 9 for Figure 6 A schematic diagram of the unidirectional flow component in the open state;

[0044] Figure 10 for Figure 6 Schematic diagram of the unidirectional flow component in the closed state Figure 2 .

[0045] Figure label:

[0046] 100-Integrated Thermal Management System;

[0047] 1-Refrigerant unit; 11-Protective cover; 111-Cover body; 1111-Windward side; 1112-Bottom wall; 1113-Recessed area; 1114-Air inlet; 112-Connecting component; 1121-First refrigerant discharge port; 12-One-way flow component; 121-Valve body; 122-Reinforcing component; 13-Refrigerant integrated module;

[0048] 2-Inspection Items;

[0049] 3-Refrigerant dilution component; 31-Contraction section; 32-Throat; 33-Diffuser section; 34-Second refrigerant discharge port; 35-First inlet; 36-Second inlet; 37-Inlet section;

[0050] 200 - Cooling fan; 210 - First air outlet; 220 - Second air outlet. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0052] This application provides an embodiment of a new energy vehicle. For example, a new energy vehicle may include electric vehicles and hybrid electric vehicles. A hybrid electric vehicle can refer to a new energy vehicle that combines an internal combustion engine and an electric motor as power systems.

[0053] New energy vehicles include integrated thermal management systems. These systems involve temperature control and energy efficiency optimization in multiple aspects to ensure the performance, efficiency, and comfort of new energy vehicles under various conditions.

[0054] In existing technologies, thermal management integrated systems include an air conditioning blower module, a battery, and a refrigerant integrated module. The refrigerant integrated module is connected to the air conditioning blower module, which is used to cool or heat the passenger compartment of new energy vehicles.

[0055] Existing air conditioning blower modules include a blower, a cooling module, and a heating module. Specifically, the heating module typically includes a heater, which converts electrical energy into heat energy to directly heat the air flowing through it. The blower then blows the heated air into the passenger compartment to heat the passenger compartment.

[0056] The refrigeration module mainly includes a compressor, a condenser, and an evaporator. When there is a cooling demand in the passenger compartment, the refrigerant in the refrigerant integration module is transferred to the evaporator, where it absorbs heat from the air and vaporizes, converting the air around the evaporator into low-temperature air. This air is then blown into the passenger compartment by a blower. After becoming a low-temperature, low-pressure gas, the refrigerant is drawn into the compressor and compressed into a high-temperature, high-pressure gas. It then enters the cooling device in the refrigerant integration module to release heat, and then returns to the evaporator. This cycle continues, achieving the cooling of the passenger compartment.

[0057] Currently, most refrigerant integrated modules use R134a (tetrafluoroethane) or R1234yf (tetrafluoropropylene) refrigerants. Among them, R134a refrigerant has higher refrigeration performance and chemical stability, and can provide stable cooling effects over a wide temperature range. R1234yf refrigerant has a lower global warming potential (GWP) and less environmental impact, while also meeting the cooling requirements of water-side integrated modules.

[0058] However, R134a refrigerant has a high GWP value, resulting in a significant environmental impact. R1234yf refrigerant, on the other hand, has a high manufacturing cost, leading to higher manufacturing and operating costs for new energy vehicles.

[0059] R290 (propane) refrigerant has a low GWP value, does not damage the ozone layer, and possesses good thermodynamic properties, resulting in high refrigeration efficiency and effective cooling and heating. However, R290 refrigerant poses a flammable and explosive risk. Therefore, existing technologies typically employ closed or open-loop solutions to handle R290 refrigerant leaks, ensuring the safety of the integrated thermal management system.

[0060] Closed-loop leak containment solutions typically include ignition, catalytic combustion, and adsorption solutions.

[0061] Ignition-based leak containment solutions typically use an electric spark to ignite the leaking refrigerant, causing it to burn within a containment enclosure while the combustion status is monitored to ensure safety. Catalytic combustion leak containment solutions utilize a catalyst to react the refrigerant with other gases, converting it into a harmless substance; this process requires temperature and flow control devices. Adsorption-based leak containment solutions typically use an adsorbent to absorb the leaking refrigerant, reducing its diffusion within the containment enclosure; however, the adsorbent needs to be replaced periodically.

[0062] Open-air leak response systems typically include automatic fire suppression systems and forced ventilation systems. Automatic fire suppression systems spray extinguishing agents to suppress combustion when abnormal pressure is detected, while forced ventilation systems activate fans to quickly remove leaked refrigerant when refrigerant concentration exceeds safe levels.

[0063] However, due to the low lower explosive limit of R290 refrigerant, existing leak handling solutions require multiple sensors, such as concentration sensors, pressure fluctuation sensors, temperature monitoring sensors, flame detectors, and collision sensors, to ensure the safety of the thermal management integrated system. In addition, ignition-based solutions may cause accidental ignition in vehicle vibration environments, requiring the installation of a fire extinguishing system. Catalytic combustion-based solutions have high catalyst costs and require maintaining high operating temperatures. Therefore, existing thermal management integrated systems are expensive.

[0064] In view of this, embodiments of this application provide a thermal management integrated system and a new energy vehicle. The thermal management integrated system includes a refrigerant device, a detection element, and a refrigerant dilution element. The refrigerant device includes a refrigerant integration module and a protective cover. The refrigerant integration module contains refrigerant. The protective cover is located outside the refrigerant integration module; the bottom of the protective cover has a first refrigerant discharge port. The detection element is inside the protective cover and located at the bottom of the protective cover, and the first refrigerant discharge port is located at the bottom of the detection element. The detection element is configured to monitor the concentration of refrigerant inside the protective cover. The refrigerant dilution element is located outside the protective cover. The refrigerant dilution element has a first inlet, a second inlet, and a second refrigerant discharge port. The first inlet is connected to the first refrigerant discharge port, the second inlet is configured to be connected to the first air outlet of a cooling fan, and the second refrigerant discharge port is connected to both the first inlet and the second inlet. The first refrigerant discharge port is configured to create negative pressure when the cooling fan and / or the vehicle is running.

[0065] The thermal management integrated system provided in this application embodiment, by setting up a protective cover, can confine leaked refrigerant inside the cover, preventing refrigerant overflow. A detection element can monitor the refrigerant concentration inside the protective cover in real time. Since the density of refrigerant is generally greater than that of air, when refrigerant leaks into the protective cover, the leaked refrigerant can settle at the bottom of the cover. This allows the detection element located at the bottom of the cover to more accurately detect the refrigerant concentration, improving the accuracy of refrigerant concentration detection and eliminating the need for multiple detection elements. When the cooling fan is running and / or the vehicle is running, a negative pressure is created, drawing the refrigerant from the protective cover into the refrigerant dilution element through the first refrigerant discharge port. Because the first refrigerant discharge port is located below the detection element, the refrigerant must pass through the detection element first before flowing into the refrigerant dilution element through the first refrigerant discharge port, further enhancing the accuracy of the detection element in refrigerant concentration detection. Once the refrigerant enters the refrigerant dilution element, it can mix with air, diluting the refrigerant and reducing its concentration. The diluted refrigerant is then discharged through the second refrigerant discharge port, ensuring the safety of the integrated thermal management system.

[0066] Meanwhile, the detection device in this embodiment can more accurately detect the refrigerant concentration and use negative pressure to extract and discharge the refrigerant. Therefore, there is no need to set up multiple concentration sensors, pressure fluctuation sensors, temperature monitoring sensors, flame detectors and collision sensors, etc., which can further reduce the manufacturing cost of the thermal management integrated system.

[0067] Refrigerant may include propane. Propane is a highly efficient refrigerant with excellent thermal conductivity, enabling rapid cooling. However, propane is flammable and explosive; leaks can cause fires or explosions upon contact with open flames or high temperatures, compromising the safety of the integrated thermal management system. By employing the integrated thermal management system provided in this embodiment, propane can be effectively diluted and safely discharged, ensuring its safe use and significantly improving the cooling efficiency and operating costs of the refrigerant integration module.

[0068] In other embodiments, the refrigerant may also include other flammable and explosive refrigerants, and this embodiment does not impose any restrictions on this.

[0069] This application takes R290 refrigerant as an example and further illustrates the structure of the thermal management integrated system of this application with reference to the accompanying drawings.

[0070] Figure 1 Schematic diagram of the thermal management integrated system and cooling fan provided in the embodiments of this application Figure 1 , Figure 2 Schematic diagram of the thermal management integrated system and cooling fan provided in the embodiments of this application Figure 2 , Figure 3 for Figure 2 A magnified view of part A in the diagram. Figure 4 This is an exploded view of the thermal management integrated system provided in the embodiments of this application. Figure 5 Examples of this application Figure 4 A schematic diagram of the structure of the protective shield. Figure 6 This is a schematic diagram of the flow structure of refrigerant and airflow provided in an embodiment of this application.

[0071] Please refer to Figure 3 and Figure 4 In one aspect, embodiments of this application provide a thermal management integrated system 100, including a refrigerant device 1, a detection element 2, and a refrigerant dilution element 3.

[0072] Please refer to Figures 3 to 5 The refrigerant device 1 includes a refrigerant integration module 13 and a protective cover 11. The refrigerant integration module 13 contains refrigerant. The protective cover 11 is located outside the refrigerant integration module 13. The refrigerant integration module 13 is used to store refrigerant, ensuring normal circulation of refrigerant in the system and realizing thermal management functions.

[0073] The refrigerant integration module 13 and the specific thermal management functions are existing structures and will not be described in detail here.

[0074] It should be noted that this embodiment does not impose any restrictions on the specific refrigerant used in the refrigerant integration module 13, and other hazardous refrigerants are also applicable to this embodiment.

[0075] Please refer to Figures 1 to 6 In this embodiment, the bottom of the protective cover 11 has a first refrigerant discharge port 1121. The refrigerant dilution component 3 is located outside the protective cover 11. The refrigerant dilution component 3 has a first inlet 35, a second inlet 36, and a second refrigerant discharge port 34. The first inlet 35 is connected to the first refrigerant discharge port 1121, the second inlet 36 is configured to be connected to the first air outlet 210 of the cooling fan 200, and the second refrigerant discharge port 34 is connected to both the first inlet 35 and the second inlet 36.

[0076] Specifically, the first refrigerant vent 1121 is configured to create a negative pressure when the cooling fan 200 and / or the vehicle is running. When refrigerant leaks from the refrigerant integrated module 13, the leaked refrigerant enters the protective cover 11. At this time, if the cooling fan 200 is off or the vehicle is stopped, the first refrigerant vent 1121 will not create a negative pressure. Therefore, the leaked refrigerant can be stably stored inside the protective cover 11, preventing refrigerant from leaking into the external environment and causing harm to the thermal management integrated system 100 and the surrounding environment.

[0077] In this embodiment, the thermal management integrated system 100 includes a detection element 2, which is disposed at the bottom of the protective cover 11, and the first refrigerant discharge port 1121 is disposed at the bottom of the detection element 2.

[0078] Specifically, the detection element 2 is configured to monitor the refrigerant concentration inside the protective cover 11. When the refrigerant concentration detected by the detection element 2 inside the protective cover 11 reaches the warning value, the cooling fan 200 can be turned on or the vehicle can be started. At this time, a negative pressure will be formed at the first refrigerant discharge port 1121. Under the action of the negative pressure, the refrigerant can enter the refrigerant dilution element 3 through the first inlet 35 and then be discharged through the second refrigerant discharge port 34.

[0079] In this embodiment, the detection element 2 is a concentration sensor, which can accurately detect the concentration of refrigerant inside the protective cover 11.

[0080] Please refer to Figures 1 to 6 When the first refrigerant discharge port 1121 forms a negative pressure to extract refrigerant from the protective cover 11, the detection element 2, located at the bottom of the protective cover 11 and above the first refrigerant discharge port 1121, will deposit at the bottom of the protective cover 11 when refrigerant leaks into it, since the density of refrigerant is generally greater than that of air. This allows the detection element 2 to accurately detect the density of the refrigerant inside the protective cover 11. Simultaneously, when the refrigerant is flowing, because the first refrigerant discharge port 1121 is located below the detection element 2, the refrigerant will inevitably pass through the detection element 2 before flowing out through the first refrigerant discharge port 1121 during its flow to the refrigerant dilution element 3. This allows the detection element 2 to more accurately detect the concentration of the refrigerant inside the protective cover 11, facilitating the triggering of different response methods based on the refrigerant concentration value.

[0081] For example, when the detection element 2 detects a high refrigerant concentration inside the protective cover 11, such as when the refrigerant concentration inside the protective cover 11 is close to a preset warning value, the cooling fan 200 can be turned on and run at a high speed. At this time, a negative pressure will be formed at the first refrigerant discharge port 1121, thereby drawing the leaked refrigerant out of the protective cover 11. At the same time, the airflow blown out by the cooling fan 200 can enter the refrigerant dilution element 3 through the second inlet 36, mix with the refrigerant, reduce the refrigerant concentration, and make the refrigerant meet the safety discharge standard. The diluted refrigerant, driven by the airflow of the cooling fan 200, can be safely discharged through the second refrigerant discharge port 34, thereby ensuring the safety of the thermal management integrated system 100.

[0082] For example, when the detection element 2 detects a low refrigerant concentration inside the protective cover 11, the speed of the cooling fan 200 can be appropriately reduced to adjust the airflow speed. By adjusting the speed of the cooling fan 200, it is possible to flexibly adapt to refrigerant leaks of different concentrations, thereby improving the adaptability of the thermal management integrated system.

[0083] In some other exemplary embodiments, when the refrigerant concentration inside the protective cover 11 is low, the vehicle may simply be running. In this case, the negative pressure generated during vehicle operation can draw the refrigerant into the first refrigerant discharge port 1121 and discharge it through the second refrigerant discharge port 34. Since the concentration of the leaked refrigerant is low, there is no need to turn on the cooling fan 200 to dilute the refrigerant, thereby reducing the vehicle's energy consumption and quickly discharging the refrigerant.

[0084] In this embodiment, the cooling fan 200 and the refrigerant dilution component 3 are connected via a pipeline. When the vehicle generates negative pressure during operation, the magnitude of the negative pressure generated during vehicle operation can be adjusted by changing the ratio between the diameter of the pipeline and the diameter of the second refrigerant discharge port 34, thereby ensuring that the negative pressure generated during vehicle operation can extract the refrigerant. The larger the ratio between the diameter of the pipeline and the diameter of the second refrigerant discharge port 34, the greater the negative pressure, and thus the stronger the suction force.

[0085] In summary, the negative pressure created by the cooling fan 200 and vehicle operation can quickly and safely discharge leaked refrigerant. At the same time, the protective cover 11 can prevent leaked refrigerant from overflowing, ensuring the safe operation of the thermal management integrated system 100.

[0086] It should be noted that the cooling fan 200 is an existing device in the existing thermal management integrated system 100, used to cool the water tank inside the vehicle. Since the leaked refrigerant in this embodiment is extracted through vehicle operation and the cooling fan 200, there is no need to set up an additional extraction device, and the airflow of the cooling fan 200 can directly dilute the refrigerant, eliminating the need for ignition or other methods to treat the refrigerant, which greatly reduces the manufacturing cost of the thermal management integrated system 100.

[0087] Since the detection element 2 in this embodiment can accurately detect the refrigerant concentration and uses negative pressure to extract and discharge the refrigerant, there is no need to set up multiple concentration sensors, pressure fluctuation sensors, temperature monitoring sensors, flame detectors and collision sensors, etc., thereby further reducing the manufacturing cost of the thermal management integrated system 100.

[0088] Figure 8 for Figure 6 Schematic diagram of the unidirectional flow element 12 in the closed state Figure 1 .

[0089] Please refer to Figure 2 , Figure 6 and Figure 8 In some embodiments, the protective cover 11 is further provided with an air inlet 1114 in a region away from its own windward side 1111, and the air inlet 1114 is located in the top region of the protective cover 11. The refrigerant device 1 also includes a one-way flow member 12, which is located inside the air inlet 1114. The one-way flow member 12 is configured to open when there is a negative pressure inside the protective cover 11, so as to allow air from outside the protective cover 11 to enter the protective cover 11.

[0090] The top region of the protective cover 11 is the upper region of the protective cover 11, including the top surface of the protective cover 11 and the side regions near the top surface.

[0091] Please refer to Figure 2 Figure 6 and Figure 8 Specifically, in this embodiment, the one-way flow element 12 is located inside the air inlet 1114. When the vehicle or cooling fan 200 operates, creating negative pressure at the first refrigerant discharge port 1121, a negative pressure also forms inside the protective cover 11, causing the one-way flow element 12 to open and allowing air from outside the protective cover 11 to enter through the air inlet 1114. The air entering the protective cover 11 can mix with the leaked refrigerant, thus initially diluting the refrigerant within the protective cover 11. The initially diluted refrigerant-air mixture then enters the refrigerant dilution element 3 through the first refrigerant discharge port 1121. Inside the refrigerant dilution element 3, the mixture is further mixed with the airflow blown out by the cooling fan 200, undergoing secondary dilution. This allows the refrigerant to reach a lower concentration before being released into the environment, thereby improving the safety and reliability of the thermal management integrated system 100.

[0092] Figure 9 for Figure 6 A schematic diagram of the unidirectional flow element 12 in the open state.

[0093] Please refer to Figure 2 , Figure 6 , Figure 8 and Figure 9 In some embodiments, the one-way flow element 12 includes a one-way valve, which can precisely control the one-way flow of airflow and prevent refrigerant from entering the external environment through the one-way valve. The one-way valve has a simple structure, low maintenance cost, and high reliability, which can further reduce the manufacturing cost of the thermal management integrated system 100.

[0094] In some embodiments, the one-way valve includes a valve body 121 disposed within a protective cover 11.

[0095] Please refer to Figure 2 , Figure 6 , Figure 8 and Figure 9 One end of the valve body 121 is connected to the protective cover 11, and the other end is located inside the air inlet 1114 to block the air outlet side of the air inlet 1114. The valve body 121 is configured to deform toward the side away from the air inlet 1114 when there is a negative pressure inside the protective cover 11 to open the air outlet side of the air inlet 1114.

[0096] The valve body 121 is made of a material with a certain elasticity. When the valve body 121 is subjected to force, it can undergo elastic deformation and can restore its own shape when the external force is removed.

[0097] Please refer to Figure 2 , Figure 6 , Figure 8 and Figure 9 Specifically, when a negative pressure environment is formed inside the protective cover 11 due to the negative pressure of the first refrigerant discharge port 1121, the negative pressure will exert a pulling force on the valve body 121 toward the first refrigerant discharge port 1121, thereby forcing the valve body 121 to deform, thereby opening the air outlet side of the air inlet 1114, so that external air can enter the protective cover 11 through the air inlet 1114.

[0098] As outside air is gradually drawn into the protective cover 11, the air and refrigerant are initially diluted, reducing the concentration of refrigerant in the protective cover 11. At the same time, the pressure inside the protective cover 11 gradually returns to normal. When the negative pressure at the first refrigerant discharge port 1121 disappears and the pressure inside the protective cover 11 is the same as the external ambient pressure, the valve body 121 can return to its initial state to seal the air outlet side of the air inlet 1114 and prevent refrigerant from overflowing.

[0099] Figure 10 for Figure 6 Schematic diagram of the unidirectional flow element 12 in the closed state Figure 2 .

[0100] Please refer to Figure 2 , Figure 6 , Figure 9 and Figure 10 In some embodiments, the one-way valve further includes a reinforcing member 122, which is disposed within the valve body 121.

[0101] Please refer to Figure 2 , Figure 6 , Figure 9 and Figure 10 Specifically, the reinforcing member 122 is located inside the valve body 121. When the valve body 121 begins to deform, the reinforcing member 122 can provide support for the valve body 121, so that the valve body 121 can distribute stress more evenly during the deformation process, thereby reducing the risk of local excessive deformation or damage, and thus ensuring that the valve body 121 maintains stability and durability during frequent pressure changes and deformation processes.

[0102] Meanwhile, by setting the reinforcing member 122, the tightness of the valve body 121 when sealing the air inlet 1114 can be ensured, and the valve body 121 can be prevented from opening due to vibration or other external forces.

[0103] Please refer to Figures 1 to 6 In some embodiments, the protective cover 11 has a windward surface 1111 facing the side where the first air outlet 210 of the cooling fan 200 is located, and the first refrigerant discharge port 1121 is located in the area of ​​the protective cover 11 away from the windward surface 1111.

[0104] Specifically, in this embodiment, the windward side 1111 of the protective cover 11 is the side of the protective cover 11 facing the vehicle's driving direction. When the vehicle is moving, the windward side 1111 directly faces the oncoming wind, thus generating positive pressure. The first refrigerant discharge port 1121 of the protective cover 11 is located in an area away from the windward side 1111, that is, a negative pressure area relative to the positive pressure area of ​​the windward side 1111. This allows the negative pressure generated when the vehicle is moving to draw the leaked refrigerant out of the protective cover 11 and guide it to the refrigerant dilution element 3, where it is then discharged. This eliminates the need for other extraction devices, saving manufacturing costs for the thermal management integrated system 100.

[0105] For example, in this embodiment, when the protective cover 11 is a rectangular structure, the windward side 1111 is the side of the protective cover 11 facing the cooling fan 200, and the first refrigerant discharge port 1121 can be set on the bottom surface of the protective cover 11 adjacent to the windward side 1111.

[0106] The negative pressure suction force can be adjusted according to the vehicle's speed to ensure that the refrigerant can be effectively extracted and processed under different operating conditions.

[0107] For example, when the vehicle is traveling at a slow speed but the refrigerant concentration inside the protective cover 11 is high, the cooling fan 200 can be turned on to generate further negative pressure, thereby enhancing the suction force at the first refrigerant discharge port 1121 and increasing the speed of refrigerant dilution and discharge.

[0108] Please refer to Figures 1 to 6 In some embodiments, the protective cover 11 has a bottom wall 1112, on which a first refrigerant discharge port 1121 is provided. The detection element 2 is disposed inside the protective cover 11 on one side adjacent to the bottom wall 1112. The detection element 2 is opposite to the first refrigerant discharge port 1121 and has a gap between it and the bottom wall 1112 for refrigerant to flow.

[0109] Specifically, in this embodiment, the detection element 2 is disposed inside the protective cover 11 on one side adjacent to the bottom wall 1112, and the detection element 2 is opposite to the first refrigerant discharge port 1121. When refrigerant leaks from the refrigerant integration module 13 and flows into the protective cover 11, because the density of the refrigerant is greater than that of air, the refrigerant will naturally flow towards the bottom wall 1112 under the action of gravity. Therefore, placing the detection element 2 at the bottom wall 1112 can ensure that the detection element 2 can detect the leaked refrigerant in a timely manner, thereby improving the response speed of the thermal management integration module.

[0110] In this embodiment, there is a gap between the detection element 2 and the bottom wall 1112 for refrigerant to flow through. When the suction force generated by the negative pressure draws the refrigerant through the first refrigerant discharge port 1121 to the refrigerant dilution element 3, the refrigerant needs to pass through the detection element 2 and the aforementioned gap to enter the first refrigerant discharge port 1121. This allows the detection element 2 to monitor the refrigerant concentration inside the protective cover 11 in real time during the refrigerant flow. If the refrigerant concentration detected by the detection element 2 is still high during the extraction process, the cooling fan 200 can be turned on or its speed increased to enhance the negative pressure, accelerate the refrigerant extraction and dilution process, ensure the safe discharge of the refrigerant, and improve the flexibility and safety of the thermal management integrated system 100.

[0111] Figure 7 This is a schematic diagram of the assembly of the test piece 2 provided in the embodiment of this application within the protective cover 1.

[0112] Please refer to Figure 2 and Figure 7 In some embodiments, the bottom wall 1112 has a recessed area 1113, the recessed area 1113 is provided with a first refrigerant discharge port 1121, and the detection element 2 is disposed in the recessed area 1113.

[0113] Please refer to Figure 2 and Figure 7 Specifically, in this embodiment, the bottom wall 1112 of the protective cover 11 has a recessed area 1113, and the detection element 2 is disposed in the recessed area 1113. When the refrigerant leaks from the refrigerant integration module 13 and flows into the protective cover 11, the refrigerant will naturally flow to the recessed area 1113 of the bottom wall 1112 under the action of gravity, so that the refrigerant can be concentrated in the recessed area 1113, which is convenient for the detection element 2 to monitor and ensure the accuracy of the detection element 2 in detecting the refrigerant concentration.

[0114] The specific shape of the recessed area 1113 can be selectively set according to actual needs, and this embodiment does not impose any restrictions on it.

[0115] For example, the recessed area 1113 is a rectangular recess that is set to match the shape of the detection element 2.

[0116] In some embodiments, the bottom of the recessed area 1113 is a slope, which is inclined toward the first refrigerant discharge port 1121, thereby guiding the flow of refrigerant, accelerating the flow speed of refrigerant, and thus increasing the discharge speed of refrigerant.

[0117] Please refer to Figures 1 to 6 In some embodiments, the refrigerant dilution element 3 is configured to generate negative pressure at the first refrigerant discharge port 1121.

[0118] Specifically, in this embodiment, the first air outlet 210 of the cooling fan 200 is connected to the second inlet 36 of the refrigerant diluent 3 via a pipeline. The airflow blown out by the cooling fan 200 enters the refrigerant diluent 3 through the pipeline. When the airflow passes through the first inlet 35, the pressure decreases due to the high airflow speed, thus creating a negative pressure at the first refrigerant discharge port 1121, drawing the refrigerant into the refrigerant diluent 3. Simultaneously, the refrigerant diluent 3 can also generate a negative pressure at the first refrigerant discharge port 1121, further enhancing the negative pressure at the first refrigerant discharge port 1121, thereby rapidly extracting the refrigerant, accelerating the refrigerant flow rate, improving refrigerant discharge efficiency, and enhancing the safety of the thermal management integrated system 100.

[0119] For example, by changing the flow channel size of the airflow in the refrigerant diluent 3, the airflow velocity in the refrigerant diluent 3 can be increased when passing through the first inlet 35, thereby enhancing the negative pressure and increasing the refrigerant suction speed.

[0120] This embodiment does not impose any restrictions on the specific structure of the refrigerant dilution component 3, and can make an adaptive selection according to actual needs.

[0121] Please refer to Figures 1 to 6 In some embodiments, the refrigerant dilution component 3 includes a contraction section 31, a throat 32, and a diffusion section 33. The throat 32 is located between the contraction section 31 and the diffusion section 33 and connects the contraction section 31 and the diffusion section 33.

[0122] Specifically, in this embodiment, the throat 32 is located between the contraction section 31 and the diffuser section 33, and connects the contraction section 31 and the diffuser section 33. The cross-sectional area of ​​the contraction section 31 gradually decreases from the end away from the throat 32 to the end closer to the throat 32, while the cross-sectional area of ​​the diffuser section 33 gradually increases from the end closer to the throat 32 to the end away from the throat 32. The cross-sectional area of ​​the throat 32 is constant and smaller than the cross-sectional areas of the contraction section 31 and the diffuser section 33. When the airflow blown by the cooling fan 200 enters the throat 32 from the contraction section 31, the airflow speed gradually increases due to the gradual decrease in cross-sectional area. When the airflow passes through the throat 32, the airflow speed reaches its maximum, and the pressure reaches its minimum, forming a negative pressure. This allows a negative pressure to be formed at the first refrigerant discharge port 1121. The negative pressure formed by the refrigerant dilution element 3 and the negative pressure generated by the cooling fan 200 or vehicle operation are superimposed to form a larger negative pressure, thereby enhancing the refrigerant extraction efficiency. When the airflow enters the diffuser section 33 from the throat 32, the airflow speed gradually decreases due to the gradual increase in cross-sectional area. Thus, through the arrangement of the contraction section 31, the throat 32, and the diffuser section 33, the refrigerant dilution component 3 can effectively regulate the airflow speed and pressure, thereby improving the efficiency of refrigerant extraction.

[0123] It should be noted that the contraction section 31, the throat 32, and the diffuser section 33 can form a Venturi tube structure. Through the Venturi effect, when the fluid passes through a gradually narrowing channel (throat 32), the flow velocity increases and the pressure decreases, thereby creating a negative pressure at the first refrigerant discharge port and further enhancing the refrigerant extraction efficiency.

[0124] Please refer to Figures 1 to 6 The first inlet 35 and the second inlet 36 are located on different sides of the contraction section 31, and the diffuser section 33 has a second refrigerant discharge port 34 at the end opposite to the throat 32.

[0125] Specifically, the airflow from the cooling fan 200 enters the first inlet 35 of the refrigerant dilution component 3 through a pipe. The cross-sectional area of ​​the contraction section 31 gradually decreases from the end away from the throat 32 to the end closer to the throat 32. When the airflow enters the contraction section 31, the airflow velocity gradually increases and the pressure gradually decreases due to the gradual decrease in cross-sectional area. This ensures that when the airflow passes through the second inlet 36, the leaked refrigerant can be effectively extracted from the protective cover 11. In this way, a large negative pressure can be formed without increasing the speed of the cooling fan 200, improving the refrigerant extraction efficiency and effectively reducing the energy consumption of the thermal management integrated system 100 when discharging refrigerant.

[0126] Please refer to Figures 1 to 6Meanwhile, when the airflow and refrigerant enter the diffuser section 33 through the throat 32, the cross-sectional area of ​​the diffuser section 33 gradually increases from the end near the throat 32 to the end away from the throat 32. As the cross-sectional area gradually increases, the airflow velocity gradually decreases. This gradually reduces the speed of the accelerated airflow, allowing the air and refrigerant to mix thoroughly. After being diluted to a safe concentration, the airflow is discharged through the second refrigerant discharge port 34.

[0127] In some embodiments, the refrigerant diluent 3 further includes an inlet section 37, which is in communication with the contraction section 31. The first inlet 35 and the second inlet 36 are located on different sides of the inlet section 37 to ensure that the negative pressure generated by the refrigerant diluent 3 and the negative pressure generated by the airflow blown out by the cooling fan 200 can effectively draw the leaked refrigerant out of the protective cover 11.

[0128] Please refer to Figures 1 to 6 In some embodiments, the protective cover 11 includes a cover body 111 and a connecting member 112. The cover body 111 covers the outside of the refrigerant integration module 13. The connecting member 112 is located outside the protective cover 11. One end of the connecting member 112 communicates with the inside of the cover body 111, and the other end has a first refrigerant discharge port 1121. The portion of the connecting member 112 with the first refrigerant discharge port 1121 is located inside the contraction section 31.

[0129] Specifically, in this embodiment, the protective cover 11 includes a cover body 111 and a connecting member 112. The cover body 111 is located outside the refrigerant integration module 13 to seal and protect the refrigerant integration module 13 and prevent refrigerant from leaking into the external environment.

[0130] Please refer to Figures 1 to 6 The connecting member 112 is located outside the protective cover 11. One end of the connecting member 112 communicates with the inside of the cover 111, and the other end has a first refrigerant discharge port 1121. The portion of the connecting member 112 with the first refrigerant discharge port 1121 is located inside the contraction section 31. When the airflow blown out by the cooling fan 200 enters the first inlet 35 of the refrigerant diluent 3, the airflow reaches the first inlet 35 after passing through the contraction section 31. Due to the pressure reduction at the first inlet 35, a negative pressure is formed at the first refrigerant discharge port 1121, so that the leaked refrigerant inside the protective cover 11 is extracted through the connecting member 112 and guided into the refrigerant diluent 3.

[0131] In this embodiment, one end of the connecting member 112 with the first refrigerant discharge port 1121 is connected to the contraction section 31 and sealed by the first sealing member to prevent refrigerant from overflowing through the connection between the connecting member 112 and the contraction section 31.

[0132] The first sealing element can be a sealing ring or a sealing sleeve.

[0133] To further enhance the sealing performance between the connecting member 112 and the contraction section 31, in this embodiment, the portion of the connecting member 112 with the first refrigerant discharge port 1121 is located within the contraction section 31. This ensures that the refrigerant remains sealed during extraction, preventing leakage. In some embodiments, a second sealing element may also be provided at the connection between the connecting member 112 and the contraction section 31 to further enhance the sealing performance and prevent refrigerant overflow.

[0134] Furthermore, since the first refrigerant discharge port 1121 is located within the contraction section 31, the extracted refrigerant, after mixing with the airflow, remains within the acceleration zone of the contraction section 31. This allows the mixed refrigerant and airflow to continue accelerating, thereby further increasing the refrigerant extraction speed and efficiency.

[0135] Please refer to Figures 1 to 6 In some embodiments, the orientation of the second refrigerant discharge port 34 is the same as the orientation of the second air outlet 220 of the cooling fan 200, and the second air outlet 220 and the first air outlet 210 are located on the same side of the cooling fan 200.

[0136] Specifically, in this embodiment, the cooling fan 200 also includes a second air outlet 220. Part of the airflow blown out by the cooling fan 200 enters the refrigerant dilution component 3 through the first air outlet 210, and the other part is blown out through the second air outlet 220.

[0137] Please refer to Figures 1 to 5 Specifically, the first air outlet 210 of the cooling fan 200 is connected to the second inlet 36 of the refrigerant diluent 3 via a pipe, providing high-speed airflow to the refrigerant diluent 3. The airflow mixes with leaked refrigerant within the refrigerant diluent 3, diluting the refrigerant to a safe concentration before being discharged through the second refrigerant discharge port 34. The second air outlet 220 directly discharges the airflow from the cooling fan 200 into the external environment. The orientation of the second air outlet 220 is the same as that of the second refrigerant discharge port 34, allowing the airflow from the second air outlet 220 to further dilute the refrigerant discharged from the second refrigerant discharge port 34, resulting in an even lower refrigerant concentration before it is released into the environment, thereby further improving the safety and reliability of the thermal management integrated system 100.

[0138] Please refer to Figures 1 to 6 Secondly, embodiments of this application provide a new energy vehicle, including a cooling fan 200 and a thermal management integrated system 100 as described in any of the first aspects. The cooling fan 200 has a first air outlet 210, and the second inlet 36 of the refrigerant dilution component 3 in the thermal management integrated system 100 is connected to the first air outlet 210.

[0139] The new energy vehicle provided in this embodiment includes the above-mentioned thermal management integrated system 100. Therefore, the new energy vehicle has the beneficial effects of the above-mentioned thermal management integrated system 100, which will not be described in detail here.

[0140] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0141] In the description of this application, it should be understood that the terms “comprising” and “having” as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may include other steps or units that are not expressly listed or that are inherent to such process, method, product, or apparatus.

[0142] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0143] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A thermal management integrated system, characterized in that, include: The refrigerant device (1) includes a refrigerant integration module (13) and a protective cover (11). The refrigerant integration module (13) contains refrigerant. The protective cover (11) is located outside the refrigerant integration module (13). The bottom of the protective cover (11) has a first refrigerant discharge port (1121). The detection element (2) is disposed inside the protective cover (11) at the bottom of the protective cover (11), and the first refrigerant discharge port (1121) is disposed at the bottom of the detection element (2); the detection element (2) is configured to monitor the concentration of refrigerant inside the protective cover (11); A refrigerant dilution component (3) is located outside the protective cover (11); the refrigerant dilution component (3) has a first inlet (35), a second inlet (36) and a second refrigerant discharge port (34), the first inlet (35) is connected to the first refrigerant discharge port (1121), the second inlet (36) is configured to be connected to the first air outlet (210) of the cooling fan (200), and the second refrigerant discharge port (34) is connected to the first inlet (35) and the second inlet (36) respectively; the first refrigerant discharge port (1121) is configured to form a negative pressure when the cooling fan (200) and / or the vehicle is running.

2. The thermal management integrated system according to claim 1, characterized in that, The protective cover (11) has a windward surface (1111) facing the side where the first air outlet (210) of the cooling fan (200) is located; The first refrigerant discharge port (1121) is located in the area of ​​the protective cover (11) away from the windward side (1111).

3. The thermal management integrated system according to claim 1, characterized in that, The protective cover (11) has a bottom wall (1112), and the bottom wall (1112) is provided with the first refrigerant discharge port (1121). The detection element (2) is provided inside the protective cover (11) on one side adjacent to the bottom wall (1112). The detection element (2) is opposite to the first refrigerant discharge port (1121) and has a gap between it and the bottom wall (1112) for the refrigerant to flow through.

4. The thermal management integrated system according to claim 3, characterized in that, The bottom wall (1112) has a recessed area (1113), the recessed area (1113) is provided with the first refrigerant discharge port (1121), and the detection element (2) is located in the recessed area (1113).

5. The thermal management integrated system according to claim 1, characterized in that, The refrigerant dilution element (3) is configured to generate negative pressure at the first refrigerant discharge port (1121).

6. The thermal management integrated system according to claim 5, characterized in that, The refrigerant dilution component (3) includes a contraction section (31), a throat (32) and a diffusion section (33). The throat (32) is located between the contraction section (31) and the diffusion section (33) and connects the contraction section (31) and the diffusion section (33). The first inlet (35) and the second inlet (36) are located on different sides of the contraction section (31), and the diffusion section (33) has a second refrigerant discharge port (34) at one end away from the throat (32).

7. The thermal management integrated system according to claim 6, characterized in that, The protective cover (11) includes a cover body (111) and a connecting member (112), and the cover body (111) covers the outside of the refrigerant integration module (13); The connecting member (112) is located outside the protective cover (11). One end of the connecting member (112) is connected to the inside of the cover (111), and the other end has the first refrigerant discharge port (1121). The part of the connecting member (112) with the first refrigerant discharge port (1121) is located inside the contraction section (31).

8. The thermal management integrated system according to any one of claims 1-7, characterized in that, The orientation of the second refrigerant discharge port (34) is the same as that of the second air outlet (220) of the cooling fan (200), and the second air outlet (220) and the first air outlet (210) are located on the same side of the cooling fan (200).

9. The thermal management integrated system according to any one of claims 1-7, characterized in that, The protective cover (11) is also provided with an air inlet (1114) in the area away from its own windward side (1111), and the air inlet (1114) is located in the top area of ​​the protective cover (11); The refrigerant device (1) further includes a one-way flow element (12), which is disposed in the air inlet (1114). The one-way flow element (12) is configured to open when there is a negative pressure inside the protective cover (11) so that air outside the protective cover (11) can enter the protective cover (11).

10. The thermal management integrated system according to claim 9, characterized in that, The one-way flow element (12) includes a one-way valve.

11. The thermal management integrated system according to claim 10, characterized in that, The one-way valve includes a valve body (121), which is disposed inside the protective cover (11); One end of the valve body (121) is connected to the protective cover (11), and the other end is located inside the air inlet (1114) to block the air outlet side of the air inlet (1114); the valve body (121) is configured to deform toward the side away from the air inlet (1114) when there is negative pressure inside the protective cover (11) to open the air outlet side of the air inlet (1114).

12. The thermal management integrated system according to claim 11, characterized in that, The one-way valve also includes a reinforcing member (122), which is disposed inside the valve body (121).

13. The thermal management integrated system according to any one of claims 1-7, characterized in that, The refrigerant includes propane.

14. A new energy vehicle, characterized in that, include: Cooling fan (200) with a first air outlet; In any one of the thermal management integrated systems as described in claims 1-13, the second inlet (36) of the refrigerant dilution component (3) in the thermal management integrated system is connected to the first air outlet (210).

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