Heat dissipation system for new energy vehicle and new energy vehicle

Abstract

The embodiment of the invention discloses a heat dissipation system for a new energy vehicle and the new energy vehicle, the heat dissipation system comprises a radiator, a water pump, a turbofan and a flow guide cover, the radiator comprises a water inlet and a water outlet, the water pump comprises a pump inlet and a pump outlet, and the pump inlet communicates with the water outlet; the pump outlet and the water inlet are used for being connected with the two ends of a cooling pipeline respectively, the turbofan is arranged on the side, away from the water pump, of the radiator, the air inlet side of the turbofan is close to the turbofan, and the flow guide cover is arranged between the turbofan and the flow guide cover and comprises a plurality of first air inlets distributed at intervals and a plurality of second air inlets formed in the peripheries of the first air inlets. The air inlet area of the second air inlet is larger than that of the first air inlet. The combination of the flow guide cover and the turbofan is adopted, the flow guide cover is used for changing an air duct, and a Chinese type air suction flow field of the turbofan is changed into a uniformly-distributed flow field suitable for the radiator, so that air can uniformly pass through the radiator, the radiating efficiency is improved, and the radiating effect of the radiator is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heat dissipation technology for new energy vehicles, and in particular to a heat dissipation system for a new energy vehicle and a new energy vehicle. BACKGROUND

[0002] The motor of a new energy vehicle is composed of a core and a winding coil. After the motor is powered on, heat will be generated inside the motor. If the motor is not effectively cooled, the internal temperature of the motor will continue to rise, and the high temperature will cause the coil inside the motor to ablate and even cause the coil to short circuit, thereby damaging the motor. The function of the motor controller is to convert the direct current of the storage battery into alternating current to drive the motor. If the motor controller is not effectively cooled, the output power of the motor will also be reduced. Therefore, the internal part of the motor controller and the motor of the new energy vehicle need to be cooled.

[0003] At present, the cooling system for the motor and the motor controller includes an electric water pump and a radiator connected by a water pipe, and a fan. The cooling system exchanges heat with the motor and the motor controller by injecting a liquid such as cooling water into the water pipe, and finally the heat is conducted to the radiator, and the radiator is cooled by the fan, thereby achieving the effect of cooling the motor and the motor controller.

[0004] However, the internal assembly space of the new energy vehicle is limited, and how to reasonably arrange the installation positions of the radiator, the fan, and the water pump to improve the heat dissipation efficiency and ensure the heat dissipation effect becomes a problem to be solved. SUMMARY

[0005] The embodiment of the present application discloses a heat dissipation system for a new energy vehicle, the new energy vehicle comprising a motor assembly and a cooling pipeline for cooling the motor assembly, and the heat dissipation system comprising:

[0006] a radiator, the radiator comprising a water inlet and a water outlet;

[0007] a water pump, the water pump comprising a pump inlet and a pump outlet, the pump inlet and the water outlet being in communication, and the pump outlet and the water inlet being respectively used for connecting two ends of the cooling pipeline;

[0008] a turbine fan, the turbine fan being arranged on a side of the radiator away from the water pump, and an air inlet side of the turbine fan being close to the radiator;

[0009] a flow guide cover, the flow guide cover being arranged between the turbine fan and the radiator, the flow guide cover comprising a plurality of first air inlets arranged at intervals and a plurality of second air inlets arranged on an outer periphery of the first air inlets, and an air inlet area of the second air inlets being greater than an air inlet area of the first air inlets.

[0010] Further, the flow guide cover comprises a first flow guide part, a second flow guide part and a plurality of connecting ribs, the first flow guide part is provided with a plurality of first air inlets. The second flow guide part is located outside the first flow guide part. The plurality of connecting ribs are arranged between the first flow guide part and the second flow guide part at intervals, and the second air inlets are arranged between adjacent connecting ribs. The second flow guide part comprises an air inlet end connected with the radiator and an air outlet end connected with the turbine fan, and the first flow guide part is arranged closer to the radiator than the air outlet end.

[0011] Further, a part of the first flow guide part is recessed in a direction away from the radiator to form a flow guide cavity.

[0012] Further, a part of the first flow guide part and / or the second flow guide part is curved / bent to form a reinforcing part, and the reinforcing part is connected with the connecting rib.

[0013] Further, the radiator comprises a heat exchange pipeline, a plurality of fins, a plurality of turbulence parts and a protective layer, the heat exchange pipeline has a water inlet and a water outlet. The plurality of fins are connected with the heat exchange pipeline. The plurality of turbulence parts are arranged on the inner wall of the heat exchange pipeline at intervals. The protective layer is arranged on the inner wall of the heat exchange pipeline and the wall surface of the turbulence part.

[0014] Further, the water inlet is arranged away from the water pump compared with the water outlet.

[0015] Further, the heat dissipation system further comprises an expansion water tank and a liquid level sensor, the expansion water tank is capable of communicating with the water inlet. The liquid level sensor is arranged on the expansion water tank and is used for detecting the liquid capacity in the expansion water tank.

[0016] Further, the heat dissipation system further comprises a temperature sensor arranged on the radiator, and the temperature sensor is used for detecting the temperature of the cooling medium at the water outlet.

[0017] Further, the heat dissipation system further comprises a filter cover and a magnetic part, the filter cover is arranged on the side of the radiator away from the turbine fan. The magnetic part is arranged on the side wall of the filter cover facing the radiator, and the filter cover is magnetically attracted to the radiator through the magnetic part.

[0018] Another embodiment of the present application also discloses a new energy vehicle comprising a motor assembly, a cooling pipeline and a heat dissipation system, the motor assembly comprises a motor and a controller. The cooling pipeline is arranged on the motor assembly and is used for cooling the motor and the controller. The pump outlet of the heat dissipation system and the water inlet are respectively communicated with two ends of the cooling pipeline.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The heat dissipation system in the application comprises a turbine fan, a radiator and a flow guide cover. The turbine fan can improve the ventilation volume of the radiator, change the air direction from axial to radial, save a large amount of axial space, and change the axial air inlet to radial air outlet at any angle by changing the installation angle of the turbine fan, so that the arrangement of the heat dissipation system in the vehicle is more flexible. The combination of the flow guide cover and the turbine fan is adopted. The flow guide cover is used to change the air duct and change the air flow field of the turbine fan to a uniform distribution flow field suitable for the radiator, so that the radiator can uniformly pass air and improve the heat dissipation efficiency, and ensure the heat dissipation effect of the radiator.

[0021] Additional aspects and advantages of the application will be set forth in part in the following description, will become apparent to those skilled in the art from the following description, or will be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 One of the structure diagrams of the heat dissipation system provided by the embodiments of the application;

[0024] Figure 2 The second structure diagram of the heat dissipation system provided by the embodiments of the application;

[0025] Figure 3 The structure diagram of the flow guide cover provided by the embodiments of the application;

[0026] Figure 4 The partial structure side view of the heat dissipation system provided by the embodiments of the application;

[0027] Figure 5 The partial structure perspective view of the heat dissipation system provided by the embodiments of the application;

[0028] Figure 6 The structure diagram of the turbine fan provided by the embodiments of the application;

[0029] Figure 7 The structure diagram of the radiator provided by the embodiments of the application;

[0030] Figure 8 The structure diagram of the radiator provided by the embodiments of the application; Figure 7 The local enlarged view of the radiator provided at A;

[0031] Figure 9 The structure diagram of the radiator provided by the embodiments of the application; Figure 8A local enlarged view of the heat sink provided at B;

[0032] Figure 10 A structural schematic view of the filter cover and the magnetic member provided in the embodiments of the present application is shown in the figure;

[0033] Figure 11 A principle diagram of the heat dissipation system of the new energy vehicle provided in the embodiments of the present application is shown in the figure;

[0034] Figure 12 A structural schematic view of the heat dissipation system of the new energy vehicle provided in the embodiments of the present application is shown in the figure.

[0035] Explanation of reference numerals:

[0036] 11 heat sink, 111 heat exchange pipeline, 112 fin, 113 spoiler, 115 water inlet, 116 water outlet,

[0037] 12 water pump,

[0038] 13 turbine fan,

[0039] 14 fairing, 141 first fairing, 142 second fairing, 143 connecting rib, 144 air inlet end, 145 air outlet end, 146 first air inlet, 147 second air inlet, 148 fairing cavity, 149 reinforcing part,

[0040] 15 expansion water kettle,

[0041] 16 liquid level sensor,

[0042] 17 temperature sensor,

[0043] 18 filter cover,

[0044] 19 magnetic member,

[0045] 21 motor, 22 controller, 23 cooling pipeline. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0047] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0048] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms may also be used to indicate other meanings, for example, the term "upper" may also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0049] In addition, the terms "mount", "set", "provided with", "connected", "connected" should be broadly understood. For example, it can be a fixed connection, a detachable connection, or a monolithic structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific type and structure may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0051] The embodiments of the present application disclose a heat dissipation system for a new energy vehicle, such as Figure 1 、 Figure 2 、 Figure 11 and Figure 12As shown, the new energy vehicle includes a motor 21 assembly and a cooling pipeline 23 for cooling the motor 21 assembly, and the heat dissipation system includes a radiator 11, a water pump 12, a turbo fan 13 and a flow guide cover 14. The radiator 11 includes a water inlet 114 and a water outlet 115. The water pump 12 includes a pump inlet and a pump outlet, the pump inlet and the water outlet 115 are communicated, and the pump outlet and the water inlet 114 are respectively used for connecting two ends of the cooling pipeline 23. The turbo fan 13 is arranged on the side of the radiator 11 away from the water pump 12, and the air inlet side of the turbo fan 13 is arranged close to the radiator 11. The flow guide cover 14 is arranged between the turbo fan 13 and the radiator 11, and the flow guide cover 14 includes a plurality of first air inlets 146 distributed at intervals and a plurality of second air inlets 147 arranged on the outer periphery of the first air inlets 146. The air inlet area of the second air inlet 147 is greater than that of the first air inlet 146.

[0052] In this embodiment, the heat dissipation system includes a radiator 11, a water pump 12, a turbo fan 13 and a flow guide cover 14. The cooling medium in the radiator 11 includes cooling water, and the cooling water with a higher temperature can enter the inside of the radiator 11 through the water inlet 114, and after heat exchange in the inside of the radiator 11, the temperature is reduced, and then flows out through the water outlet 115. The water pump 12 is used for providing power for the flow of the cooling water, and the water pump 12 includes a pump inlet and a pump outlet, that is, the cooling water enters the inside of the water pump 12 through the pump inlet, and then flows out through the pump outlet after being pressurized. Among them, along the circulation path of the cooling water, the radiator 11 and the water pump 12 are connected in series, and after the cooling water flows out from the water outlet 115 of the radiator 11, it enters the water pump 12, and then flows from the pump outlet of the water pump 12 to the cooling pipeline 23 for cooling the motor 21 assembly, and the cooling water is heated due to the heat generated by the motor 21 assembly during operation, and the cooling water with a higher temperature will flow to the water inlet 114 of the radiator 11, and then enter the inside of the radiator 11 for the next round of heat exchange.

[0053] Among them, the radiator 11 has opposite first and second sides in the thickness direction of the radiator 11, the water pump 12 is arranged on the first side of the radiator 11, and the turbo fan 13 is arranged on the second side of the radiator 11. The three are modularized, compact and integrated, which can reduce the space occupation, and at the same time, the water pump 12 is arranged close to the radiator 11, which can also reduce the length of the pipeline between the water pump 12 and the radiator 11, ensure smooth water suction of the water pump 12, and reduce the fluid resistance in the water suction process to the greatest extent, and reduce the probability of pump suction.

[0054] In the heat exchange process of the heat sink 11, the turbine fan 13 is used in this embodiment to improve the ventilation of the heat sink 11, and the air direction is changed from axial to radial, which can save a lot of axial space compared with ordinary fans. Due to the structural characteristics of the turbine fan 13, after the turbine fan 13 axially intakes air, the centrifugal force generated by the rotation of the fan blades can blow air to the side. By changing the installation angle of the turbine fan 13, the axial air intake can be changed to radial air outlet at any angle by centrifugal force, so that the overall arrangement of the heat dissipation system in the vehicle interior is more flexible. For example, as shown in Figure 6 , the air outlet direction of the turbine fan 13 can be upward, downward, left, or right.

[0055] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 5 , the turbine fan 13 and the heat sink 11 are also provided with a flow guide cover 14. The flow guide cover 14 includes a first air inlet 146 in the middle region and a second air inlet 147 around the first air inlet 146. The air inlet area of the second air inlet 147 is larger than that of the first air inlet 146. By using the principle of aerodynamics, the axial air intake of the turbine fan 13, which is originally relatively concentrated, is expanded to all heat exchange regions of the heat sink 11, so that the heat exchange regions of the heat sink 11 can uniformly exchange heat with external air.

[0056] As shown in Figure 4 , when the turbine fan 13 is started, the centrifugal force generated by the rotation of the fan blades will generate an axial negative pressure suction force on the air intake side of the turbine fan 13. The air intake amount of the outer periphery of the flow guide cover 14 will be greater than that of the central region. By matching the first air inlet 146 and the second air inlet 147 with different air inlet areas with the air intake amount, the ventilation of the heat sink 11 can be adjusted. According to experiments, compared with directly installing the turbine fan 13 on one side of the heat sink 11, the air passage area of the heat sink 11 can be increased by more than 27% after the flow guide cover 14 is added.

[0057] In this embodiment, the flow guide cover 14 and the turbine fan 13 are combined. The flow guide cover 14 is used to change the air duct and change the central air intake flow field of the turbine fan 13 to a uniform distribution flow field suitable for the heat sink 11, so that the heat sink 11 can uniformly pass air and improve the heat dissipation efficiency to ensure the heat dissipation effect of the heat sink 11.

[0058] Further, as shown in Figure 3 and Figure 5As shown, the fairing 14 includes a first fairing portion 141, a second fairing portion 142, and a plurality of connecting ribs 143. The first fairing portion 141 is provided with a plurality of first air inlets 146. The second fairing portion 142 is located outside the first fairing portion 141. The plurality of connecting ribs 143 are arranged at intervals between the first fairing portion 141 and the second fairing portion 142, and the adjacent connecting ribs 143 have a second air inlet 147 therebetween. The second fairing portion 142 includes an air inlet end 144 connected to the radiator 11 and an air outlet end 145 connected to the turbofan 13. The first fairing portion 141 is arranged closer to the radiator 11 than the air outlet end 145.

[0059] In this embodiment, the fairing 14 includes a first fairing portion 141, a second fairing portion 142, and a plurality of connecting ribs 143. The first fairing portion 141 is arranged corresponding to the air inlet of the turbofan 13, and the first fairing portion 141 is located in the central region. The second fairing portion 142 is located outside the first fairing portion 141, i.e. the second fairing portion 142 is in the peripheral region. The first fairing portion 141 and the second fairing portion 142 have an interval therebetween. The plurality of connecting ribs 143 are arranged at intervals between the first fairing portion 141 and the second fairing portion 142, and the adjacent connecting ribs 143 have a second air inlet 147 therebetween. The first air inlet 146 is arranged in the central region, and the second air inlet 147 is arranged peripherally around the first air inlet 146.

[0060] The second fairing portion 142 includes opposite air inlet end 144 and air outlet end 145, the air inlet end 144 is connected to the radiator 11, and the air outlet end 145 is connected to the turbofan 13. From the direction of the radiator 11 to the turbofan 13, the second fairing portion 142 is generally tapered, i.e. the area enclosed by the outer contour line of the air inlet end 144 is greater than the area enclosed by the outer contour line of the air outlet end 145. Specifically, the second fairing portion 142 includes a plurality of connected end-to-end inclined plates, which can be used to guide the wind field.

[0061] Further, the first fairing portion 141 is arranged closer to the radiator 11 than the air outlet end 145, i.e. the first fairing portion 141 as a whole is arranged protruding towards the radiator 11 compared to the air outlet end 145. The first fairing portion 141 and the second fairing portion 142 cooperate to make the flow field formed by the turbofan 13 suitable for the uniform distribution of the flow field of the radiator 11, achieving uniform air flow through the radiator 11.

[0062] In other words, the first air inlet 146 can also be referred to as a forward air inlet, and the second air inlet 147 can be referred to as a circumferential air inlet. The design of the forward air inlet and the circumferential air inlet can solve the problem of excessive concentration of air intake of the turbofan 13, allowing the airflow to pass through the radiator 11 uniformly, achieving uniform heat dissipation of the radiator 11.

[0063] Further, as shown in the drawings, Figure 3 andFigure 5 As shown, a portion of the first flow guide portion 141 is recessed in a direction away from the heat dissipating device 11 to form a flow guide cavity 148.

[0064] In this embodiment, a portion of the first flow guide portion 141 is recessed in a direction away from the heat dissipating device 11 to form a flow guide cavity 148, and the arrangement of the flow guide cavity 148 can reduce wind resistance and be more in line with aerodynamics. Specifically, the middle region of the first flow guide portion 141 is not recessed in a direction towards the turbine fan 13, i.e., the middle region of the first flow guide portion 141 is flat. The outer peripheral region of the first flow guide portion 141 is recessed in a direction towards the turbine fan 13, and the flow guide cavity 148 is annular, balancing the air pressure and allowing the air intake of the flow guide cover 14 to be as balanced as possible.

[0065] It should be noted that the recessed depth of the portion of the first flow guide portion 141 towards the turbine fan 13 is less than the distance between the first flow guide portion 141 and the air outlet end 145 of the second flow guide portion 142. That is, the first flow guide portion 141 as a whole is still convex towards the heat dissipating device 11 compared to the air outlet end 145 of the second flow guide portion 142.

[0066] Further, as shown in Figure 3 , a portion of the first flow guide portion 141 and / or the second flow guide portion 142 is bent / folded to form a reinforcing portion 149, and the reinforcing portion 149 is connected to the connecting rib 143.

[0067] In this embodiment, at least one of the first flow guide portion 141 and the second flow guide portion 142 is bent / folded to form a reinforcing portion 149 when connected to the connecting rib 143, in order to improve the structural strength of the at least one of the first flow guide portion 141 and the second flow guide portion 142 and to make the overall structure of the flow guide portion more stable. A portion of the at least one of the first flow guide portion 141 and the second flow guide portion 142 is bent / folded to achieve structural reinforcement of this portion to meet the connection requirements.

[0068] Further, as shown in Figure 7 , Figure 8 and Figure 9 , the heat dissipating device 11 includes a heat exchange pipeline 111, a plurality of fins 112, a plurality of turbulence portions 113, and a protective layer. The heat exchange pipeline 111 has a water inlet 114 and a water outlet 115. The plurality of fins 112 are connected to the heat exchange pipeline 111. The plurality of turbulence portions 113 are arranged at intervals on the inner wall of the heat exchange pipeline 111. The protective layer is arranged on the inner wall of the heat exchange pipeline 111 and on the wall surface of the turbulence portion 113.

[0069] In this embodiment, the heat sink 11 is the core structure of the heat dissipation in the entire heat dissipation system, and the heat sink 11 comprises heat exchange pipelines 111, a plurality of fins 112, a plurality of turbulence portions 113 and a protective layer. The inside of the heat exchange pipeline 111 is used for the circulation of the cooling liquid. Specifically, the heat exchange pipeline 111 is a grid pipeline. The fins 112 are arranged between the heat exchange pipelines 111 to increase the heat dissipation area of the entire heat sink 11, thereby effectively improving the heat dissipation efficiency.

[0070] The plurality of turbulence portions 113 are arranged in the inside of the heat exchange pipeline 111, and the arrangement of the plurality of turbulence portions 113 makes the circulation passage of the cooling liquid in the heat exchange pipeline 111 present a micro-cavity structure. Compared with the ordinary pipeline, the area can be increased, the turbulence effect can be improved, the cooling liquid is more likely to form a turbulent flow, and thus the heat exchange efficiency is improved. In addition, the contact area can be further expanded. For the pipeline with the same inner diameter, after the turbulence structure is increased, the contact area can be increased by about 80%, and the heat dissipation efficiency is further improved. It should be noted that the plurality of turbulence portions 113 are arranged in the inside of the heat exchange pipeline 111 in a relative manner, so that the circulation passage of the cooling liquid presents a substantially "S" shape, and the heat exchange efficiency and durability of the heat exchange pipeline 111 are improved.

[0071] Further, in order to increase the thermal conductivity and corrosion resistance, the inside of the heat exchange pipeline 111 is coated with a protective layer, so that the inside of the heat sink 11 can be well protected and the heat dissipation effect is good, and the use stability and reliability of the heat sink 11 are enhanced. Preferably, the protective layer can be a nano-aluminum oxide coating.

[0072] Further, as shown in Figure 1 and Figure 7 , the water inlet 114 is arranged away from the water pump 12 compared with the water outlet 115.

[0073] In this embodiment, the water inlet 114 is arranged at the upper part, the water outlet 115 is arranged at the lower part, and the water pump 12 is arranged close to the water outlet 115, so that the air suction of the water pump 12 can be effectively prevented, and problems such as wear of the water pump 12 and reduction of the heat dissipation efficiency caused by air suction of the pump can be avoided.

[0074] The water pump 12 comprises a pump motor, and the pump motor is an adjustable speed direct current motor 21. The rated power and the maximum speed can be controlled according to the actual demand of the heat dissipation system.

[0075] Further, as shown in Figure 1 , Figure 2 and Figure 11 , the heat dissipation system further comprises an expansion water kettle 15 and a liquid level sensor 16. The expansion water kettle 15 can be in communication with the water inlet 114. The liquid level sensor 16 is arranged on the expansion water kettle 15 and is used for detecting the liquid capacity in the expansion water kettle 15.

[0076] In this embodiment, the heat dissipation system further comprises an expansion water tank 15 as a supplementary container of the cooling liquid, the expansion water tank 15 is in communication with the water inlet 114, and the communication between the expansion water tank 15 and the water inlet 114 of the radiator 11 can be adjusted. The capacity of the circulating cooling liquid in the heat dissipation system is determined. When the cooling liquid in the radiator 11 is consumed, the cooling liquid in the expansion water tank 15 can be supplemented into the heat dissipation system, so as to ensure that the heat dissipation can be stably operated for a long time. The heat dissipation system further comprises a liquid level sensor 16 installed on the expansion water tank 15, the liquid level sensor 16 can monitor the liquid level in the expansion water tank 15 in real time, so as to reflect the storage condition of the cooling liquid in the heat dissipation system and assist in judging the operation condition of the heat dissipation system.

[0077] Further, as shown in Figure 1 and Figure 11 , the heat dissipation system further comprises a temperature sensor 17 arranged on the radiator 11, and the temperature sensor 17 is used to detect the temperature of the cooling medium at the water outlet 115.

[0078] In this embodiment, the heat dissipation system further comprises a temperature sensor 17 capable of detecting the temperature of the cooling medium at the water outlet 115 of the radiator 11. The heat dissipation system can evaluate the heat dissipation performance of the whole heat dissipation system according to the temperature value of the temperature sensor 17, and can also optimize and adjust the operation parameters of the water pump 12 and the turbine fan 13 based on the temperature value monitored by the temperature sensor 17 in real time. Specifically, the turbine fan 13 can adjust the fan blade speed in real time according to the value of the temperature sensor 17, so as to better balance the power consumption and the heat dissipation effect.

[0079] It should be noted that the pump motor of the water pump 12 can be controlled jointly with the liquid level sensor 16 and the temperature sensor 17, so as to ensure that the storage amount of the cooling liquid of the heat dissipation system meets the use demand, and the cooling efficiency can be dynamically adapted according to the actual temperature rise condition.

[0080] Further, as shown in Figure 10 , the heat dissipation system further comprises a filter cover 18 and a magnetic part 19, and the filter cover 18 is arranged on the side of the radiator 11 away from the turbine fan. The magnetic part 19 is arranged on the side wall of the filter cover 18 facing the radiator 11, and the filter cover 18 is magnetically attracted to the radiator 11 through the magnetic part 19.

[0081] In this embodiment, the heat dissipation system further comprises a filter cover 18 and a magnetic part 19, and the filter cover 18 is arranged on the side of the radiator 11 away from the turbine fan, which is used to block the external dust, sand and other impurities, so as to prevent the surface of the radiator 11 from being attached with other redundant objects and affecting the heat exchange efficiency. Preferably, the filter cover 18 is a stainless steel cover.

[0082] Furthermore, a magnetic component 19 is disposed on the side wall of the filter cover 18 facing the heat sink 11, and the filter cover 18 is magnetically attracted to the heat sink 11 by the magnetic component 19. Preferably, the magnetic component 19 includes a magnetic strip, which, under the attraction of the magnetic strip, will cause the filter cover 18 to automatically adhere to the heat sink 11, achieving quick installation. When disassembly and cleaning are required, the filter cover 18 can be directly peeled off from the heat sink 11, which is simple and convenient to use, has low maintenance costs, and good versatility.

[0083] Another embodiment of this application discloses a new energy vehicle, including a motor assembly 21, a cooling pipe 23, and a heat dissipation system. The motor assembly 21 includes a motor 21 and a controller 22. The cooling pipe 23 is disposed on the motor assembly 21 and is used to cool the motor 21 and the controller 22. The pump outlet and water inlet 114 of the heat dissipation system are respectively connected to both ends of the cooling pipe 23.

[0084] In this embodiment, the new energy vehicle includes a motor assembly 21, a cooling pipe 23, and a heat dissipation system. The cooling pipe 23 is used to dissipate heat from the motor 21 and the controller 22. The pump outlet of the water pump 12 and the water inlet 114 of the radiator 11 in the heat dissipation system are respectively connected to both ends of the cooling pipe 23, thereby forming a complete cooling circuit.

[0085] like Figure 11 and Figure 12 As shown, specifically, during the operation of the cooling system, the system first performs an initialization test. It uses the coolant level sensor 16 to determine if the coolant level in the expansion tank 15 meets the safe starting requirements. If the coolant level is below the safety threshold, a warning is issued, and the vehicle is prevented from starting. If the requirements are met, the system starts normally.

[0086] Simultaneously, during initial testing, temperature sensor 17 determines whether the current coolant temperature is within the safe start-up temperature range. If the coolant temperature is too low, such as solidified coolant, it will severely hinder system circulation, leading to wear and burnout of water pump 12 and pump motor. Conversely, if the coolant temperature is too high, the source of the abnormal high temperature should be investigated.

[0087] Once the initialization test is passed, the pump motor of water pump 12 and the turbine fan 13 start to operate. By using the real-time temperature value of temperature sensor 17, the speed of each pump motor and turbine fan 13 is adjusted to achieve the best balance between heat dissipation efficiency and energy consumption.

[0088] When a new energy vehicle experiences an abnormality during operation, such as coolant leakage causing the level sensor 16 to detect a rapid drop in the coolant level below the safety threshold, or the vehicle failing to achieve thermal equilibrium, the temperature sensor 17 will measure the temperature in real time and cause it to gradually rise above the alarm value. This will trigger an alarm message to remind the driver, and the vehicle will be able to perform safety control in conjunction with real-time vehicle parameters.

[0089] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat dissipation system for a new energy vehicle, characterized in that, The new energy vehicle comprises a motor assembly and a cooling pipeline for cooling the motor assembly, and the heat dissipation system comprises: a radiator comprising a water inlet and a water outlet; a water pump comprising a pump inlet and a pump outlet, the pump inlet and the water outlet being in communication, and the pump outlet and the water inlet being used for connecting two ends of the cooling pipeline, respectively; a turbine fan arranged on a side of the radiator away from the water pump, an air inlet side of the turbine fan being close to the arrangement; a fairing arranged between the turbine fan and the radiator, the fairing comprising a plurality of first air inlets arranged at intervals and a plurality of second air inlets arranged on the outer periphery of the first air inlets, the air inlet area of the second air inlets being greater than that of the first air inlets.

2. The heat dissipation system of claim 1, wherein, The fairing comprises: a first fairing portion, a plurality of first air inlets being arranged on the first fairing portion; a second fairing portion located on the outer side of the first fairing portion; a plurality of connecting ribs arranged at intervals between the first fairing portion and the second fairing portion, the second air inlets being arranged between adjacent connecting ribs; wherein the second fairing portion comprises an air inlet end connected to the radiator and an air outlet end connected to the turbine fan, and the first fairing portion is arranged closer to the radiator than the air outlet end.

3. The heat dissipation system according to claim 2, wherein a portion of the first fairing portion is recessed in a direction away from the radiator to form a fairing cavity.

4. The heat dissipation system according to claim 2, wherein a portion of the first fairing portion and / or the second fairing portion is bent to form a reinforcing portion, and the reinforcing portion is connected to the connecting ribs.

5. The heat dissipation system according to any one of claims 1 to 4, wherein, The radiator comprises: a heat exchange pipeline having the water inlet and the water outlet; a plurality of fins connected to the heat exchange pipeline; a plurality of turbulence portions arranged at intervals on the inner wall of the heat exchange pipeline; a protective layer arranged on the inner wall of the heat exchange pipeline and the wall surface of the turbulence portion.

6. The heat dissipation system according to any one of claims 1 to 4, wherein the water inlet is arranged farther away from the water pump than the water outlet.

7. The heat dissipation system according to any one of claims 1 to 4, wherein, The heat dissipation system further comprises: an expansion water tank capable of being in communication with the water inlet; a liquid level sensor arranged on the expansion water tank and used for detecting the liquid capacity in the expansion water tank.

8. The heat dissipation system of any one of claims 1 to 4, wherein, The heat dissipation system further comprises: a temperature sensor arranged on the radiator, the temperature sensor being used for detecting the temperature of the cooling medium at the water outlet.

9. The heat dissipation system of any one of claims 1 to 4, wherein, The heat dissipation system further comprises: a filter cover arranged on a side of the radiator away from the turbine fan; a magnetic member arranged on the side wall of the filter cover facing the radiator, and the filter cover being magnetically attracted to the radiator by the magnetic member.

10. A new energy vehicle, characterized in that, comprises: a motor assembly comprising a motor and a controller; a cooling pipeline arranged on the motor assembly and used for cooling the motor and the controller; and the heat dissipation system according to any one of claims 1 to 9, the pump outlet and the water inlet of the heat dissipation system being in communication with two ends of the cooling pipeline, respectively. ​

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