Cooling system and vehicle

Abstract

The utility model discloses a cooling system and a vehicle. The cooling system comprises a radiator, a first cooling assembly and a second cooling assembly, and the radiator is provided with a first heat dissipation part, a second heat dissipation part and a third heat dissipation part which are sequentially arranged; the first cooling assembly is used for communicating the first heat dissipation part with the engine; the second cooling assembly is used for communicating the second heat dissipation part with the electric drive module; the third heat dissipation part is an intercooler, and the radiator is located on one side of the engine and the electric drive module in the width direction of the vehicle. Therefore, by optimizing the structure and layout of the radiator and adopting the efficient cooling assembly, efficient heat dissipation of the engine and the electric drive module can be guaranteed, meanwhile, the integration of a cooling system assembly structure can be improved, the space utilization rate of the vehicle in the height direction can be optimized, and therefore the height of a compartment on the rear portion of the vehicle can be reduced, and the internal space layout of the vehicle can be optimized; and the arrangement of low-entrance and low-floor vehicle models is better compatible, so that the convenience of getting on and off the vehicle and the riding comfort are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a cooling system and a vehicle. BACKGROUND

[0002] With the fierce competition in the passenger car industry, the market requirements for passenger car design are also constantly improving. In particular, low-entry and low-floor models are increasingly favored by customers due to their convenience and comfort. The design of these models requires the height of the rear compartment of the vehicle to be as low as possible to achieve a lower entry and floor height. However, in the design of traditional hybrid passenger cars, the cooling module is generally arranged in the rear compartment behind the rear wheels. Due to the installation size of the cooling module, the height of the rear compartment of the entire vehicle has to be raised accordingly, which limits the utilization rate of the interior space of the vehicle. Obviously, it cannot well accommodate the design concept of the above-mentioned low-entry and low-floor models. How to achieve the layout of low-entry and low-floor models while maintaining the efficiency of the cooling system has become a technical problem to be solved in the field of new energy passenger car manufacturing. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to propose a cooling system. The cooling system can ensure efficient heat dissipation of the engine and the electric drive module by optimizing the structure and layout of the radiator and using efficient cooling components. At the same time, the integration of the cooling system assembly structure can be improved, the space utilization rate of the vehicle in the height direction can be optimized, the height of the rear compartment of the vehicle can be reduced, the interior space layout of the vehicle can be optimized, the layout of low-entry and low-floor models can be better compatible, and the convenience of getting on and off and the comfort of riding can be improved.

[0004] The present application also proposes a vehicle with the above-mentioned cooling system.

[0005] According to the cooling system of the first aspect of the present application, the cooling system comprises a radiator, a first cooling component and a second cooling component. The radiator has a first heat dissipation part, a second heat dissipation part and a third heat dissipation part arranged in sequence. The first cooling component is used to connect the first heat dissipation part with an engine and is adapted to cool the engine through the first heat dissipation part. The second cooling component is used to connect the second heat dissipation part with an electric drive module and is adapted to cool the electric drive module through the second heat dissipation part. The third heat dissipation part is configured as an intercooler and is connected to the intake manifold of the engine. The radiator is located on one side of the engine and the electric drive module in the vehicle width direction.

[0006] According to the cooling system, by optimizing the structure of the radiator and adopting the high-efficiency cooling assembly, the integration of the cooling system assembly structure can be improved, the volume of the cooling system assembly structure is optimized, the space occupied by the overall arrangement of the cooling system can be saved, the space utilization is improved, and the installation efficiency of the cooling system is improved. In addition, the radiator is arranged laterally, which can further optimize the space utilization of the vehicle in the height direction, significantly reduce the height of the rear compartment of the vehicle, and further reduce the height of the rear compartment of the vehicle. In this way, the internal space layout of the vehicle can be optimized, the steps in the vehicle are reduced, the arrangement of the low-entry and low-floor vehicle model is better compatible, and the convenience of getting on and off the vehicle and the overall ride comfort are improved.

[0007] According to some embodiments of the present application, the first cooling assembly comprises a first liquid inlet pipe and a first liquid outlet pipe, the first liquid inlet pipe is arranged between the engine liquid inlet and the first cooling liquid output end of the first radiator, and the first liquid outlet pipe is arranged between the engine liquid outlet and the first cooling liquid input end of the first radiator.

[0008] According to some embodiments of the present application, the second cooling assembly comprises a second liquid inlet pipe and a second liquid outlet pipe, the second liquid inlet pipe is arranged between the electric drive module and the second cooling liquid output end of the second radiator, and the second liquid outlet pipe is arranged between the electric drive module and the second cooling liquid input end of the second radiator.

[0009] Further, the second cooling assembly further comprises a water pump arranged on the second liquid inlet pipe and / or the second liquid outlet pipe.

[0010] In some embodiments, the electric drive module comprises a drive motor, a controller and a generator connected in series between the second liquid inlet pipe and the second liquid outlet pipe, and a first cooling flow channel is defined between the drive motor and the controller.

[0011] Further, the electric drive module further comprises a DC / DC, the DC / DC defines a second cooling flow channel, the second cooling flow channel is connected in parallel with the first cooling flow channel and connected in series with the generator.

[0012] According to some embodiments of the present application, the first cooling assembly defines a first cooling loop, and the cooling system further comprises an expansion tank arranged at the top end of the radiator and having a first expansion part, the first expansion part is in communication with the first cooling loop and is adapted to adjust the volume of the cooling liquid in the first cooling loop.

[0013] Further, the second cooling assembly defines a second cooling loop, and the expansion tank further has a second expansion portion in communication with the second cooling loop and adapted to regulate a volume of cooling liquid of the second cooling loop.

[0014] In some embodiments, the second cooling assembly further comprises a temperature sensor arranged at the second cooling liquid outlet and adapted to detect a temperature of the cooling liquid at the second cooling liquid outlet and control a rotation speed of the fan of the radiator according to the temperature of the cooling liquid.

[0015] According to a second aspect of the present application, a vehicle is provided, comprising the cooling system according to any one of the above embodiments.

[0016] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein:

[0018] Figure 1 is a schematic diagram of the cooling system according to some embodiments of the present application;

[0019] Figure 2 is a schematic diagram of the cooling system cooling the engine according to some embodiments of the present application;

[0020] Figure 3 is a schematic diagram of the cooling system cooling the electric drive module according to some embodiments of the present application;

[0021] Figure 4 is a schematic diagram of the radiator according to some embodiments of the present application;

[0022] Figure 5 is a schematic diagram of the cooling system, the engine and the electric drive module according to some embodiments of the present application.

[0023] REFERENCE SIGNS

[0024] 100, cooling system;

[0025] 200, engine; 200a, engine liquid inlet; 200b, engine liquid outlet;

[0026] 300, electric drive module; 301, drive motor; 302, controller; 303, generator; 304, DC / DC;

[0027] 10, radiator;

[0028] 11, first heat dissipation part; 11a, first coolant output end; 11b, first coolant input end;

[0029] 12, second heat dissipation part; 12a, second coolant output end; 12b, second coolant input end;

[0030] 13, third heat dissipation part;

[0031] 20, first cooling assembly; 20a, first cooling loop;

[0032] 21, first liquid inlet pipe; 22, first liquid outlet pipe; 23, first compensation pipe; 24, first gas overflow pipe; 25, second gas overflow pipe; 26, third gas overflow pipe;

[0033] 30, second cooling assembly; 30a, first cooling flow channel; 30b, second cooling flow channel; 30c, second cooling loop;

[0034] 31, second liquid inlet pipe; 32, second liquid outlet pipe; 33, water pump; 34, temperature sensor; 35, second compensation pipe; 36, fourth gas overflow pipe; 37, fifth gas overflow pipe;

[0035] 40, expansion tank;

[0036] 41, first expansion part; 42, second expansion part;

[0037] 50, fan. DETAILED DESCRIPTION

[0038] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0039] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification of the present application and claims and the above description of drawings are intended to cover not exclusive inclusion. The terms "first", "second" and the like in the specification of the present application and claims or the above description of drawings are used to distinguish different objects, and are not used to describe a specific order or primary and secondary relationship.

[0040] Reference to "an embodiment" or "the embodiment" in this application means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" or "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive.

[0041] In the description of the application, it is required to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "attachment" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0042] In the application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the application generally represents that the front and rear associated objects have an "or" relationship.

[0043] In the embodiments of the application, the same reference signs represent the same parts, and for the sake of brevity, the detailed description of the same parts is omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device, are only exemplary and should not constitute any limitation on the application.

[0044] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0045] In the description of the application, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.

[0046] In the description of the present application, the first feature is "on", "above" and "over" the second feature, which includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher than the second feature in height.

[0047] The "multiple" appearing in the present application refers to more than two (including two).

[0048] The cooling system 100 and the vehicle according to the embodiments of the present application are described below with reference to the accompanying drawings. Figures 1-5 The cooling system 100 and the vehicle according to the embodiments of the present application are described below with reference to the accompanying drawings.

[0049] As shown in Figure 1 and Figure 5 The cooling system 100 according to the first aspect of the present application includes a radiator 10, a first cooling assembly 20 and a second cooling assembly 30.

[0050] The radiator 10 has a first heat dissipation part 11, a second heat dissipation part 12 and a third heat dissipation part 13 arranged in sequence; the first cooling assembly 20 is used to communicate the first heat dissipation part 11 with the engine 200, and is adapted to cool the engine 200 through the first heat dissipation part 11; the second cooling assembly 30 is used to communicate the second heat dissipation part 12 with the electric drive module 300, and is adapted to cool the electric drive module 300 through the second heat dissipation part 12; the third heat dissipation part 13 is configured as an intercooler and is connected to the intake manifold of the engine 200, and the radiator 10 is located on one side of the engine 200 and the electric drive module 300 in the vehicle width direction.

[0051] Specifically, the radiator 10 has three heat dissipation parts arranged in sequence, i.e. the first heat dissipation part 11, the second heat dissipation part 12 and the third heat dissipation part 13, all of which can rapidly transfer and dissipate heat to the external environment, for example, the heat can be taken away by natural or forced convection of external cold air to achieve heat dissipation of the heat dissipation part. The third heat dissipation part 13 is configured as an intercooler and is connected to the intake manifold of the engine 200. The intercooler can absorb heat in the intake air of the engine 200 and dissipate the heat to the external environment, thereby reducing the temperature of the air entering the cylinder from the intake manifold of the engine 200 and improving the combustion efficiency and output power of the engine 200. The type of the intercooler can be air-air type cooled by natural wind, or air-water type cooled by coolant.

[0052] The first cooling assembly 20 in the present application can be composed of pipes, valves and other components, used to connect the first heat sink 11 and the engine 200, and form a closed cooling liquid circulation loop, in which the cooling liquid can circulate to absorb heat from the inside of the engine 200 and flow through the first heat sink 11 to dissipate heat when the engine 200 is working, so as to realize the continuous cooling of the engine 200; similarly, the second cooling assembly 30 can be composed of pipes, valves and other components, used to connect the second heat sink 12 and the electric drive module 300, and form another closed cooling liquid circulation loop, in which the cooling liquid can absorb heat from the inside of the electric drive module 300, and then flow through the second heat sink 12 to dissipate heat when the electric drive module 300 is working, so as to realize the continuous cooling of the electric drive module 300.

[0053] It should be noted that the heat sink 10 is located on one side of the engine 200 and the electric drive module 300 in the vehicle width direction, so that the first heat sink 11, the second heat sink 12 and the third heat sink 13 are located on one side of the engine 200 and the electric drive module 300 in the vehicle width direction, which can be understood as that the cooling module of the engine 200, the cooling module of the electric drive module 300 and the intercooler are arranged on one side of the engine 200 and the electric drive module 300 in the vehicle width direction, so that the entire cooling system 100 is compact and efficient, and at the same time, the lateral arrangement of the heat sink 10 saves the space occupied by the arrangement of the heat sink 10 and the engine 200 and the electric drive module 300 and other assemblies in the vehicle height direction.

[0054] According to the cooling system 100 of the present application, by optimizing the structure of the heat sink 10 and adopting efficient cooling assemblies, the integration of the cooling system 100 assembly structure can be improved while ensuring the efficient cooling of the engine 200 and the electric drive module 300, and the volume of the cooling system 100 assembly structure can be optimized, so as to save the overall arrangement space of the cooling system 100, improve the space utilization, and facilitate the installation efficiency of the cooling system 100. Moreover, the lateral arrangement of the heat sink 10 can further optimize the space utilization of the vehicle in the height direction, can significantly reduce the height of the vehicle trunk, and further reduce the height of the vehicle rear compartment, so as to optimize the internal space layout of the vehicle, reduce the steps inside the vehicle, better accommodate the arrangement of low-entry and low-floor vehicles, and thus improve the convenience of getting on and off the vehicle and the overall ride comfort.

[0055] As shown in Figure 1 and Figure 2 According to some embodiments of the present application, the first cooling assembly 20 includes a first liquid inlet pipe 21 and a first liquid outlet pipe 22.

[0056] The first liquid inlet pipe 21 is arranged between the engine liquid inlet 200a and the first cooling liquid outlet end 11a of the first heat dissipation part 11, and the first liquid outlet pipe 22 is arranged between the engine liquid outlet 200b and the first cooling liquid inlet end 11b of the first heat dissipation part 11.

[0057] Specifically, the first liquid inlet pipe 21 and the first liquid outlet pipe 22 are arranged between the engine 200 and the first heat dissipation part 11. The first liquid inlet pipe 21 connects the engine liquid inlet 200a and the first cooling liquid outlet end 11a of the first heat dissipation part 11, so that the cooling liquid can flow from the first heat dissipation part 11 into the engine 200 to cool the engine 200. The first liquid outlet pipe 22 connects the engine liquid outlet 200b and the first cooling liquid inlet end 11b of the first heat dissipation part 11, so that the cooling liquid can flow into the first heat dissipation part 11 after heat exchange with the engine 200 to dissipate the absorbed heat to the external environment. The cooling liquid cooled in the first heat dissipation part 11 can flow to the engine 200 again through the first liquid inlet pipe 21, thereby forming a continuous cooling liquid circulation to realize continuous cooling of the engine 200. Therefore, by arranging the first liquid inlet pipe 21 and the first liquid outlet pipe 22, the circulation of the cooling liquid between the engine 200 and the first heat dissipation part 11 can be ensured to flow smoothly, thereby ensuring the cooling efficiency and effect of the engine 200.

[0058] As shown in FIGS. Figure 1 and Figure 3 According to some embodiments of the present application, the second cooling assembly 30 includes a second liquid inlet pipe 31 and a second liquid outlet pipe 32.

[0059] The second liquid inlet pipe 31 is arranged between the electric drive module 300 and the second cooling liquid outlet end 12a of the second heat dissipation part 12, and the second liquid outlet pipe 32 is arranged between the electric drive module 300 and the second cooling liquid inlet end 12b of the second heat dissipation part 12.

[0060] Specifically, the second inlet pipe 31 and the second outlet pipe 32 are both disposed between the electric drive module 300 and the second heat dissipation section 12. The second inlet pipe 31 connects the electric drive module 300 and the second coolant output terminal 12a of the second heat dissipation section 12 to ensure that coolant can flow from the second heat dissipation section 12 into the electric drive module 300 to cool the electric drive module 300. The second outlet pipe 32 connects the electric drive module 300 and the second coolant input terminal 12b of the second heat dissipation section 12 to ensure that the coolant can flow into the second heat dissipation section 12 after heat exchange with the electric drive module 300 to dissipate the absorbed heat to the external environment. The coolant cooled by heat dissipation in the second heat dissipation section 12 can flow back to the electric drive module 300 through the second inlet pipe 31 to form a continuous coolant circulation to achieve continuous cooling of the electric drive module 300. Therefore, by setting the second inlet pipe 31 and the second outlet pipe 32, the coolant can be ensured to circulate smoothly between the electric drive module 300 and the second heat dissipation unit 12, thus ensuring the cooling efficiency and effect of the electric drive module 300.

[0061] Furthermore, in some specific embodiments of this application, the first coolant output terminal 11a and the first coolant input terminal 11b are respectively disposed at both ends of the first heat dissipation part 11 in the height direction, and the second coolant output terminal 12a and the second coolant input terminal 12b are respectively disposed at both ends of the second heat dissipation part 12 in the height direction. The first coolant output terminal 11a and the second coolant output terminal 12a are located at the same end in the height direction, while the first coolant input terminal 11b and the second coolant input terminal 12b are located at the other end in the height direction. This improves the structural compactness and regularity of the first inlet pipe 21, the first outlet pipe 22, the second inlet pipe 31, and the second outlet pipe 32, further saving space and optimizing space utilization.

[0062] like Figure 3 As shown, according to some embodiments of this application, the second cooling assembly 30 further includes a water pump 33, which is disposed in the second inlet pipe 31 and / or the second outlet pipe 32.

[0063] Specifically, the water pump 33 can provide power for the cooling liquid flow, so that the circulating flow of the cooling liquid is more rapid and efficient, thereby the overall cooling efficiency of the cooling system 100 can be improved, the electric drive module 300 can be continuously and efficiently cooled, and the working performance and stability of the electric drive module 300 are improved. The arrangement mode of the water pump 33 can be configured to be arranged only in the second liquid inlet pipe 31, or only in the second liquid outlet pipe 32, or both the second liquid inlet pipe 31 and the second liquid outlet pipe 32 are arranged with the water pump 33. The type of the water pump 33 can be determined according to the specific different needs of the cooling system 100, for example, an electric water pump 33, a mechanical water pump 33, etc. can be selected. The electric water pump 33 can adjust the flow and pressure of the cooling liquid in real time according to the working state of the electric drive module 300, to adapt to the cooling needs of the electric drive module 300 under different working conditions, and has relatively high flexibility and controllability, which is beneficial to enhance the stability and reliability of the entire cooling system 100. The mechanical water pump 33 is relatively simple and reliable, which is beneficial to control the production cost and maintenance cost.

[0064] As shown in Figure 3 and Figure 5 According to some embodiments of the present application, the electric drive module 300 comprises: a drive motor 301, a controller 302 and a generator 303 which are sequentially connected in series between the second liquid inlet pipe 31 and the second liquid outlet pipe 32, and the drive motor 301 and the controller 302 define a first cooling flow channel 30a.

[0065] Specifically, the electric drive module 300 comprises a drive motor 301, a controller 302 and a generator 303. The drive motor 301 can convert electrical energy into mechanical energy to drive the vehicle to run. The controller 302 can be used to receive the instructions of the vehicle control system and accurately control the working state of the drive motor 301, such as the speed, torque, etc. The generator 303 can convert mechanical energy into electrical energy, and can recover energy during braking and convert it into electrical energy to supplement or store in the battery, so as to realize energy management. The drive motor 301, the controller 302 and the generator 303 are connected in series between the second liquid inlet pipe 31 and the second liquid outlet pipe 32, and the drive motor 301 and the controller 302 define a first cooling flow channel 30a.

[0066] When the cooling liquid enters the electric drive module 300 from the second liquid inlet pipe 31, it can first flow through the first cooling flow channel 30a to cool the drive motor 301 and the controller 302, and then continue to flow through the generator 303 to cool the generator 303. The cooling liquid that has absorbed heat then flows out of the electric drive module 300 through the second liquid outlet pipe 32 and enters the second heat dissipation part 12 for heat dissipation. In this way, the drive motor 301, the controller 302, and the generator 303 can all be cooled by the cooling liquid, which can directly and effectively contact and remove the heat generated by the drive motor 301, the controller 302, and the generator 303, thereby enhancing the cooling efficiency and effect and improving the working performance and service life of the drive motor 301, the controller 302, and the generator 303.

[0067] As shown in FIGS. 1, 2, and 3, according to some embodiments of the present application, the electric drive module 300 further comprises a DC / DC 304. Figure 3 and Figure 5 As shown in FIGS. 1, 2, and 3, according to some embodiments of the present application, the electric drive module 300 further comprises a DC / DC 304.

[0068] Specifically, the DC / DC 304, which is the full name of Direct Current-Direct Current Converter, is responsible for converting the direct current generated by the battery pack into multiple voltage levels to meet the working needs of various electrical equipment (such as lighting, audio, control system, etc.) in the vehicle. The second cooling flow channel 30b is a flow channel for cooling the DC / DC 304, which can be located around or inside the DC / DC 304 to ensure that the cooling liquid can fully contact and remove the heat generated by the DC / DC 304 during operation.

[0069] The second cooling flow channel 30b in the embodiment of the present application is in parallel connection with the first cooling flow channel 30a, and the second cooling flow channel 30b and the first cooling flow channel are both in series connection with the generator 303. After the cooling liquid enters the electric drive module 300 from the second liquid inlet pipe 31, it is divided into two paths: one path flows through the first cooling flow channel 30a to cool the drive motor 301 and the controller 302; the other path flows through the second cooling flow channel 30b to cool the DC / DC 304. After the cooling liquid in the two paths respectively completes the cooling of the respective components, it flows to the generator 303 and cools the generator 303, and then flows into the second liquid outlet pipe 32 after flowing through the generator 303, so as to flow into the second heat dissipation part 12 for heat dissipation and cooling. The introduction of the second cooling flow channel 30b enables the DC / DC 304 to be effectively cooled, and the electric drive module 300 is provided with two cooling flow channels for cooling, which can further improve the cooling efficiency and effect of the entire electric drive module 300, which helps to prolong the service life of the entire electric drive module 300 and improve the energy efficiency of the entire vehicle.

[0070] As shown in Figure 1 , Figure 2 and Figure 5 , according to some embodiments of the present application, the first cooling assembly 20 defines a first cooling loop 20a, and the cooling system 100 further comprises: an expansion tank 40, which is arranged at the top end of the radiator 10 and has a first expansion part 41, the first expansion part 41 being in communication with the first cooling loop 20a and being adapted to adjust the volume of the cooling liquid in the first cooling loop 20a.

[0071] Specifically, the expansion tank 40 has the first expansion part 41, which is in communication with the first cooling loop 20a defined by the first cooling assembly 20. The first expansion part 41 can be used to store excess cooling liquid in the first cooling loop 20a and supplement the cooling liquid when needed. For example, when the temperature of the first cooling loop 20a rises, the volume of the cooling liquid in the first cooling loop 20a will expand, and part of the cooling liquid will flow into the first expansion part 41 for storage. When the temperature of the first cooling loop 20a decreases, the volume of the cooling liquid in the first cooling loop 20a will decrease, and at this time, the cooling liquid in the first expansion part 41 can flow back into the first cooling loop 20a to supplement the amount of cooling liquid reduced due to the decrease in volume. In this way, the first expansion part 41 can play a role in adjusting the volume of the cooling liquid in the first cooling loop 20a, so as to ensure that the first cooling loop 20a can maintain a suitable and stable amount of cooling liquid and pressure under different working conditions. By providing the first expansion part 41, the stability and reliability of the first cooling loop 20a can be improved, and the management of the cooling liquid can be optimized.

[0072] It should be noted that the expansion tank 40 is arranged at the top end of the radiator 10. On the one hand, the expansion tank 40 can be easily connected to other parts of the cooling system 100 (such as the first cooling circuit 20a), and the assembly structure of the expansion tank 40 and the radiator 10 is compact, which improves the space utilization, and the expansion tank 40 and the radiator 10 are arranged on one side of the engine 200 and the electric drive module 300 in the vehicle width direction, so as to further optimize the space utilization in the height direction of the vehicle, so as to reduce the height of the vehicle rear compartment, improve the convenience of getting on and off the vehicle, and improve the comfort of the vehicle. On the other hand, arranging the expansion tank 40 at the top end of the radiator 10 is also conducive to utilizing the heat radiation of the radiator 10 to help the cooling liquid in the expansion tank 40 maintain a relatively stable temperature.

[0073] In addition, in some embodiments, the height of the position where the expansion tank 40 and the radiator 10 are located is higher than the height of the position where the engine 200 and the electric drive module 300 are located. In this way, the radiator 10 can be more easily contacted by cooling air from the front of the vehicle, thereby improving the heat dissipation performance of the radiator 10, and at the same time, the expansion tank can utilize the natural flow of the cooling liquid under the action of gravity, which helps to keep the pressure inside the cooling system 100 stable.

[0074] In addition, in some specific embodiments of the present application, as shown in Figure 2 , the first expansion part 41 is provided with a first compensation pipeline 23 between the first expansion part 41 and the first liquid inlet pipe 21, a first gas overflow pipeline 24 between the first expansion part 41 and the engine liquid outlet 200b, a second gas overflow pipeline 25 between the first expansion part 41 and the first radiator 11, and a third gas overflow pipeline 26 in communication with the outside. The first compensation pipeline 23 is used to transport the cooling liquid in the first expansion part 41 to the first liquid inlet pipe 21 when the temperature of the first cooling circuit 20a decreases and the volume of the cooling liquid shrinks, so as to supplement the first cooling circuit 20a. The first gas overflow pipeline 24 is used to discharge the excess cooling liquid and gas from the engine liquid outlet 200b when the internal pressure of the engine 200 is too high, so as to prevent overpressure, which helps to keep the internal pressure of the engine 200 stable and ensure the stable and safe operation of the engine 200. The second gas overflow pipeline 25 is used to discharge the excess cooling liquid and gas from the first radiator 11 when the internal pressure of the first radiator 11 is too high, so as to prevent overpressure, which helps to protect the radiator 10 from high pressure and prolong its service life. The third gas overflow pipeline 26 is in communication with the outside, and when the pressure in the cooling system 100 abnormally rises, the excess cooling liquid and gas can be quickly discharged from the cooling system 100 through the third gas overflow pipeline 26, so as to keep the pressure of the cooling system 100 within a safe range, thereby improving the overall safety and reliability of the cooling system 100.

[0075] As shown in Figure 1 ,Figure 3 and Figure 5 As shown, according to some embodiments of this application, the second cooling assembly 30 defines a second cooling circuit 30c, and the expansion tank 40 further has a second expansion portion 42, which is connected to the second cooling circuit 30c and is adapted to adjust the coolant volume of the second cooling circuit 30c.

[0076] Specifically, the expansion tank 40 also has a second expansion section 42, which is connected to the second cooling circuit 30c defined by the second cooling assembly 30. Similarly, the second expansion section 42 can be used to store excess coolant in the second cooling circuit 30c and replenish coolant when needed, thereby regulating the coolant volume of the second cooling circuit 30c to ensure that the second cooling circuit 30c maintains a suitable and stable coolant quantity and pressure under different operating conditions. By providing the second expansion section 42, the stability and reliability of the second cooling circuit 30c can be improved, and coolant management can be optimized.

[0077] Furthermore, in some specific embodiments of this application, such as Figure 3 As shown, a second compensation pipe 35 is provided between the second expansion section 42 and the second liquid inlet pipe 31, a fourth overflow pipe 36 is provided between the second expansion section 42 and the liquid outlet of the controller 302, and a fifth overflow pipe 37 is provided between the second expansion section 42 and the second heat dissipation section 12. The second compensation pipe 35 is used to transport the coolant in the second expansion section 42 to the second inlet pipe 31 to replenish the second cooling circuit 30c when the temperature of the second cooling circuit 30c decreases and the coolant volume shrinks. The fourth overflow pipe 36 is used to discharge excess coolant from the outlet of the controller 302 when the internal pressure of the drive motor 301 and the controller 302 is too high to prevent overpressure. This helps to maintain the pressure stability inside the drive motor 301 and the controller 302 and ensure the stable and safe operation of the drive motor 301 and the controller 302. The fifth overflow pipe 37 is used to discharge excess coolant and gas from the second heat dissipation section 12 when the internal pressure of the second heat dissipation section 12 is too high to prevent overpressure. This helps to protect the radiator 10 from damage caused by excessive pressure and extend its service life.

[0078] like Figure 3 and Figure 5 As shown, according to some embodiments of this application, the second cooling assembly 30 further includes a temperature sensor 34, which is disposed at the second coolant output terminal 12a and is used to detect the coolant temperature at the second coolant output terminal 12a and control the fan speed of the radiator 10 50 according to the coolant temperature.

[0079] Specifically, the temperature sensor 34 can be arranged at the second cooling liquid output end 12a of the second heat dissipation part 12, and the temperature sensor 34 can monitor the cooling liquid temperature of the second cooling liquid output end 12a in real time, accurately reflect the change of the cooling liquid temperature, and according to the detection result of the temperature sensor 34, the cooling system 100 can automatically adjust the rotating speed of the radiator fan 50, when the cooling liquid temperature increases, the rotating speed of the fan 50 can be increased accordingly to improve the heat dissipation efficiency, and when the cooling liquid temperature decreases, the rotating speed of the fan 50 can be reduced accordingly to save energy consumption and improve energy efficiency. By monitoring the cooling liquid temperature in real time and controlling the rotating speed of the radiator fan 50, the accuracy of the cooling system 100 in adjusting the heat dissipation intensity can be improved, so as to ensure that the cooling liquid temperature always remains within a reasonable range, and thus the cooling system 100 can be prevented from overheating, the stability and reliability of the cooling system 100 can be effectively improved, and the heat dissipation effect of the cooling system 100 can be optimized. In addition, by monitoring the change of the cooling liquid temperature through the temperature sensor 34, potential faults or abnormal conditions in the cooling system 100 can be found in time, which can play a role in fault warning and diagnosis, and further improve the safety of the cooling system 100.

[0080] It should be noted that the fan 50 and the radiator 10 can be constructed as an integral part, or the fan 50 and the radiator 10 can be two components fixedly connected together by assembly, which is not limited in the embodiments of the present application. In addition, in some embodiments, the fan 50 is arranged on the side of the radiator 10 away from the engine 200 and the electric drive module 300 in the vehicle width direction, so that the compactness of the structure of the fan 50 and the radiator 10 can be improved, the space utilization can be optimized, and the fan 50 can be facilitated to fully contact with the external air to improve the heat dissipation effect.

[0081] As shown in FIG. 1, Figures 1-5 As shown in FIG. 1,

[0082] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0083] While the embodiments of the application have been shown and described, it is to be understood that the embodiments can be varied, modified, substituted and changed by those skilled in the art without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A cooling system, characterized by, The application relates to a radiator (10) having a first radiator part (11), a second radiator part (12) and a third radiator part (13) arranged in sequence; a first cooling assembly (20) for connecting the first radiator part (11) with an engine (200) and adapted to cool the engine (200) through the first radiator part (11); a second cooling assembly (30) for connecting the second radiator part (12) with an electric drive module (300) and adapted to cool the electric drive module (300) through the second radiator part (12); wherein the third radiator part (13) is configured as an intercooler and connected to an intake manifold of the engine (200), and the radiator (10) is located on one side of the engine (200) and the electric drive module (300) in the vehicle width direction. The first cooling assembly (20) comprises a first liquid inlet pipe (21) arranged between an engine liquid inlet (200a) and a first cooling liquid outlet end (11a) of the first radiator part (11), and a first liquid outlet pipe (22) arranged between an engine liquid outlet (200b) and a first cooling liquid inlet end (11b) of the first radiator part (11). The second cooling assembly (30) comprises a second liquid inlet pipe (31) arranged between the electric drive module (300) and a second cooling liquid outlet end (12a) of the second radiator part (12), and a second liquid outlet pipe (32) arranged between the electric drive module (300) and a second cooling liquid inlet end (12b) of the second radiator part (12). The electric drive module (300) comprises a driving motor (301), a controller (302) and a generator (303) arranged in sequence between the second liquid inlet pipe (31) and the second liquid outlet pipe (32), and the driving motor (301) and the controller (302) define a first cooling flow channel (30a). The application further relates to a cooling system comprising the radiator (10) and the electric drive module (300).

2. The cooling system of claim 1, wherein, The first cooling assembly (20) defines a first cooling loop (20a), and the cooling system further comprises an expansion tank (40) arranged at the top end of the radiator (10) and having a first expansion part (41) in communication with the first cooling loop (20a) and adapted to adjust the cooling liquid volume of the first cooling loop (20a).

3. The cooling system of claim 1, wherein, ​ 4. Cooling system according to claim 3, characterized in that ​ ​ 5. The cooling system of claim 3, wherein, ​ 6. The cooling system of claim 5, wherein, ​ ​ 7. The cooling system of claim 1, wherein, ​ 8. The cooling system of claim 7, wherein, The second cooling assembly (30) defines a second cooling circuit (30c), and the expansion tank (40) further has a second expansion portion (42) which communicates with the second cooling circuit (30c) and is adapted to regulate the cooling liquid volume of the second cooling circuit (30c).

9. The cooling system of claim 3, wherein, Also included are: A temperature sensor (34) disposed at the second cooling liquid outlet (12a) for detecting the cooling liquid temperature of the second cooling liquid outlet (12a) and controlling the fan (50) rotation speed of the radiator (10) according to the cooling liquid temperature.

10. A vehicle characterized by comprising: Included are: The cooling system of any one of claims 1-9.

Images