Front-end heat exchange module of heat management system, heat management system and vehicle

Abstract

The invention provides a front-end heat exchange module of a heat management system, the heat management system and a vehicle, and relates to the technical field of vehicles, according to the front-end heat exchange module, an intercooling branch and an electric drive and electric control branch are jointly connected to a first heat dissipation branch in parallel, the first heat dissipation branch is used for dissipating heat of the intercooling branch, and meanwhile primary heat dissipation is conducted on the electric drive and electric control branch; the first three-way proportional valve is used for adjusting the flow of the cooling liquid flowing into the intercooling branch and the second heat dissipation branch, the cooling effect of the intercooling branch is further adjusted by controlling the flow, and then the second heat dissipation branch is used for conducting secondary cooling on the cooling liquid flowing into the electric drive and electric control branch. In this way, secondary cooling of the electrically-driven and electrically-controlled loop and accurate distribution of flow and heat exchange capacity of all the branches are achieved, the cooling requirements of different parts of the intercooling branch and the electrically-driven and electrically-controlled branch are accurately met, the situation that the parts are too cold and too hot is avoided, energy consumed for cooling and heat exchange of all the branches is reduced, the heat exchange efficiency is improved, and the service life of the parts is prolonged. And the thermal management performance of the whole vehicle is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a front-end heat exchange module of a thermal management system, a thermal management system and a vehicle. Background Art

[0002] With the continuous development of hybrid and electrified vehicle designs, the heat exchange demand of the thermal management system continues to increase, and the air intake volume of the front-end heat exchange module continues to decrease, posing huge challenges to the thermal management system's performance compliance.

[0003] Different components in the thermal management system have different requirements for optimal operating temperature ranges. For example, the intercooler system requires the water inlet temperature to be no greater than 72°C, and new energy components such as electric drive and electronic control require the water inlet temperature to be no greater than 65°C.

[0004] In the existing technical solutions, the intercooler cooling system and the electric drive and electronic control cooling system are connected in series or are independent of each other, and the flow rate and heat dissipation capacity cannot be accurately allocated according to the temperature requirements of different components. The heat exchange efficiency of the thermal management system is low, which affects the performance of the thermal management system. Summary of the invention

[0005] Based on this, it is necessary to provide a front-end heat exchange module, a thermal management system and a vehicle for a thermal management system to address the above-mentioned technical problems, so as to accurately meet the heat exchange requirements of different heat dissipation components and improve the heat exchange efficiency of the entire vehicle.

[0006] A front-end heat exchange module of a thermal management system, comprising: the front-end heat exchange module comprises: a first heat dissipation branch, a second heat dissipation branch, and a first three-way proportional valve; the inlet of the first heat dissipation branch is respectively connected to the outlet of the electric drive and electronic control branch and the outlet of the intercooling branch in the thermal management system; the outlet of the first heat dissipation branch is connected to the first end of the first three-way proportional valve, the second end of the first three-way proportional valve is connected to the inlet of the intercooling branch, and the third end of the first three-way proportional valve is connected to the inlet of the second heat dissipation branch; the outlet of the second heat dissipation branch is connected to the inlet of the electric drive and electronic control branch.

[0007] In an embodiment of the present application, the front-end heat exchange module also includes a first radiator connected in series in an engine cooling circuit, and a first cooling fan matched with the first radiator, the first cooling fan is arranged toward the first radiator, and the first heat dissipation branch includes a second radiator and a first cooling component; the second radiator is arranged toward the first cooling fan so that the second radiator can dissipate heat in combination with the first cooling fan; the inlet of the second radiator is connected to the inlet of the first heat dissipation branch, and the outlet of the second radiator is connected to the outlet of the first heat dissipation branch; the first cooling component is arranged between the inlet of the second radiator and the inlet of the first heat dissipation branch; the second cooling component is used to reduce the temperature of the coolant flowing into the second radiator.

[0008] In an embodiment of the present application, the first heat dissipation branch also includes a second three-way proportional valve; the first end of the second three-way proportional valve is connected to the inlet of the first heat dissipation branch; the second end of the second three-way proportional valve is connected to the inlet of the second radiator; the first cooling assembly is arranged between the inlet of the second radiator and the third end of the second three-way proportional valve.

[0009] In an embodiment of the present application, the first cooling component includes a third radiator and / or a second cooling fan, and the first cooling component is disposed at a position that is offset from the position toward which the first cooling fan is directed.

[0010] In an embodiment of the present application, the front-end heat exchange module also includes a first radiator connected in series in an engine cooling circuit, a first cooling fan matched with the first radiator, the first cooling fan is arranged toward the first radiator, and the second heat dissipation branch includes a fourth radiator and a second cooling component; the fourth radiator is arranged toward the first cooling fan so that the fourth radiator can dissipate heat in combination with the first cooling fan; the inlet of the fourth radiator is connected to the inlet of the second heat dissipation branch, and the outlet of the fourth radiator is connected to the outlet of the second heat dissipation branch; the second cooling component is arranged between the inlet of the fourth radiator and the inlet of the second heat dissipation branch; the second cooling component is used to reduce the temperature of the coolant flowing into the fourth radiator.

[0011] In an embodiment of the present application, the second heat dissipation branch also includes a third three-way proportional valve; the first end of the third three-way proportional valve is connected to the inlet of the second heat dissipation branch; the second end of the third three-way proportional valve is connected to the inlet of the fourth radiator; the second cooling assembly is arranged between the inlet of the second heat dissipation branch and the third end of the third three-way proportional valve.

[0012] In some embodiments, the second cooling assembly includes a fifth radiator and / or a third cooling fan, and the second cooling assembly is disposed at a position that is offset from the position toward which the first cooling fan is directed.

[0013] In some embodiments, the front-end heat exchange module also includes an air-cooled condenser; the air-cooled condenser is arranged on the plane where the fourth radiator is located, the air-cooled condenser faces the first cooling fan, the air-cooled condenser and the fourth radiator are both used in conjunction with the first cooling fan for heat dissipation, and the air-cooled condenser and the fourth radiator are both used in conjunction with the first cooling fan for heat dissipation; the air-cooled condenser is connected in series in the refrigerant circuit of the thermal management system, and the air-cooled condenser is used to dissipate battery heat and / or passenger compartment heat absorbed by the refrigerant circuit.

[0014] A thermal management system, comprising: the thermal management system includes a front-end heat exchange module, an electric drive and electric control branch, and an intercooling branch of the thermal management system as described in any of the above embodiments; the inlet of the first heat dissipation branch in the front-end heat exchange module is respectively connected with the outlet of the electric drive and electric control branch and the outlet of the intercooling branch; the outlet of the first heat dissipation branch is connected with the inlet of the intercooling branch through the first end of the first three-way proportional valve and the second end of the first three-way proportional valve in the front-end heat exchange module; the outlet of the second heat dissipation branch in the front-end heat exchange module is connected with the inlet of the electric drive and electric control branch; wherein the inlet of the second heat dissipation branch is connected with the third end of the first three-way proportional valve.

[0015] A vehicle comprises a thermal management system as described in any one of the above embodiments.

[0016] In summary, the front-end heat exchange module, thermal management system and vehicle of the thermal management system proposed in the embodiment of the present application connect the intercooling branch and the electric drive electronic control branch in parallel on the first heat dissipation branch, use the first heat dissipation branch to dissipate heat for the intercooling branch, and perform primary heat dissipation on the electric drive electronic control branch at the same time; use the first three-way proportional valve to adjust the flow of coolant flowing into the intercooling branch and the second heat dissipation branch, further adjust the cooling effect of the intercooling branch by controlling the flow, and then perform secondary cooling on the coolant flowing into the electric drive electronic control branch through the second heat dissipation branch. In this way, the secondary cooling of the electric drive electronic control circuit and the precise allocation of the flow and heat exchange capacity of each branch are achieved, thereby accurately meeting the heat exchange requirements of different components of the intercooling branch and the electric drive electronic control branch, avoiding overcooling and overheating of components, reducing the energy consumed for cooling and heat exchange of each branch, improving heat exchange efficiency, and achieving improved thermal management performance of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 is a schematic structural diagram of a thermal management system according to an exemplary embodiment of the present application;

[0019] Figure 2 is a structural schematic diagram of a thermal management system according to another exemplary embodiment of the present application;

[0020] Figure 3 is a structural schematic diagram of a thermal management system according to another exemplary embodiment of the present application;

[0021] Figure 4 is a schematic structural diagram of a thermal management system according to an exemplary embodiment of the present application;

[0022] Figure 5 A schematic block diagram of a vehicle is shown according to an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described by reference to the drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, but does not exclude the presence or addition of one or more other features, integers, steps, operations and / or groups thereof.

[0025] It should also be understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0026] As used in the present specification and the appended claims, the term "if" may be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" may be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]", depending on the context.

[0027] In addition, in the description of the present specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0028] References to "one embodiment" or "some embodiments" etc. described in the present specification mean that one or more embodiments of the present invention include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0029] An embodiment of the present application proposes a front-end heat exchange module of a thermal management system.

[0030] like Figure 1 As shown, the thermal management system 1 may include but is not limited to a front-end heat exchange module 10, an intercooler branch 20, and an electric drive and electric control branch 30. The front-end heat exchange module 10 may include but is not limited to a first heat dissipation branch 11, a second heat dissipation branch 12, and a first three-way proportional valve 13.

[0031] The external port of the front-end heat exchange module 10 can be divided into an inlet port, a first outlet port and a second outlet port;

[0032] The inlet end of the front-end heat exchange module 10 is connected to the outlet of the intercooling branch 20 and the outlet of the electric drive and electronic control branch 30 at the same time, the first outlet end of the front-end heat exchange module 10 is connected to the inlet of the intercooling branch 20, and the second outlet end of the front-end heat exchange module 10 is connected to the inlet of the electric drive and electronic control branch 30.

[0033] In the front-end heat exchange module 10, the inlet of the first heat dissipation branch 11 is connected to the inlet end of the front-end heat exchange module 10, so that the outlet of the electric drive and electric control branch 30 and the outlet of the intercooling branch 20 are respectively connected to the inlet of the first heat dissipation branch 11, and the coolant that needs to be cooled and dissipated from the electric drive and electric control branch 30 and the intercooling branch 20 is transmitted to the first heat dissipation branch 11 of the front-end heat exchange module 10 for heat dissipation;

[0034] In the front-end heat exchange module 10, the outlet of the first heat dissipation branch 11 is connected to the first end of the first three-way proportional valve 13, and the second end of the first three-way proportional valve 13 is connected to the first outlet end of the front-end heat exchange module 10, so that the inlet of the intercooling branch 20 is connected to the second end of the first three-way proportional valve 13, and the coolant after the heat dissipation and cooling of the first heat dissipation branch 11 is output to the intercooling branch 20 to cool the components arranged on the intercooling branch 20;

[0035] In the front-end heat exchange module 10, the third end of the first three-way proportional valve 13 is connected to the inlet of the second heat dissipation branch 12, and the outlet of the second heat dissipation branch 12 is connected to the second outlet end of the front-end heat exchange module 10, so that the inlet of the electric drive and electronic control branch 30 is connected to the outlet of the second heat dissipation branch 12, and the coolant after the first-stage cooling through the first heat dissipation branch 11 and the second-stage cooling through the second heat dissipation branch 12 is output to the electric drive and electronic control branch 30, so as to cool the components arranged on the electric drive and electronic control branch 30.

[0036] The embodiment of the present application utilizes the first three-way ratio 13 to adjust the coolant flow diverted to the intercooling branch 20 and the second heat dissipation branch 12 according to the heat dissipation requirements of the intercooling branch 20 and the electric drive and electronic control branch 30 .

[0037] In practice, the temperature requirements of the components to be cooled in the intercooling branch 20 and the electric drive and electric control branch 30 are different, and the inlet water temperature required by the electric drive and electric control branch 30 is often lower than the inlet water temperature required by the intercooling branch 20. For example, the inlet water temperature required by the intercooling branch 20 is not greater than 72°C, while in the electric drive and electric control branch 30, the electric drive, electric control and other new energy components require the inlet water temperature to be no greater than 65°C.

[0038] The embodiment of the present application accurately distributes the coolant flow rate and heat dissipation capacity according to the temperature requirements of different components. The first heat dissipation branch 11 is used to firstly perform heat dissipation cooling on the coolant flowing into the front-end heat exchange module 10, so that the temperature of the coolant output from the first heat dissipation branch 11 to the intercooling branch 20 meets the water inlet temperature required by the intercooling branch 20; the coolant flowing out from the third end of the first three-way proportional valve 13 after being diverted by the first three-way proportional valve 13 is further transmitted to the second heat dissipation branch 12 for secondary cooling, so that the temperature of the coolant flowing out from the second heat dissipation branch 12 to the electric drive and electric control branch 30 can meet the water inlet temperature required by the electric drive and electric control branch 30.

[0039] It should be noted that the intercooling branch 20 is provided with parts that need to be cooled in the intercooling system, such as an intercooler, etc. The electric drive and electric control branch 30 is provided with parts that need to be cooled in the electric drive and electric control system, such as an electric drive device and an electric drive controller, etc.

[0040] In summary, the embodiment of the present application connects the intercooling branch and the electric drive electronic control branch in parallel on the first heat dissipation branch, uses the first heat dissipation branch to dissipate heat for the intercooling branch, and performs primary heat dissipation on the electric drive electronic control branch; uses the first three-way proportional valve to adjust the flow of coolant flowing into the intercooling branch and the second heat dissipation branch, further adjusts the cooling effect on the intercooling branch by controlling the flow, and performs secondary heat dissipation on the electric drive electronic control branch through the second heat dissipation branch. In this way, secondary cooling of the electric drive electronic control circuit and accurate allocation of the flow and heat exchange capacity of each branch are achieved, thereby accurately meeting the heat exchange requirements of different components, avoiding overcooling and overheating of components, minimizing the energy consumed by cooling and heat exchange of each branch, improving heat exchange efficiency, and improving the thermal management performance of the entire vehicle.

[0041] In conventional vehicles and hybrid vehicles, the radiator of the engine cooling circuit is located in the ventilation position at the front end of the vehicle, as well as the cooling fan associated with the radiator.

[0042] In the present application embodiment, Figure 2 As shown, the front-end heat exchange module 10 also includes a first radiator 14 connected in series in the engine cooling circuit 40, and a first cooling fan 15 matched with the first radiator 14. The first cooling fan 15 is arranged toward the first radiator 14 so that the air flow rate in contact with the first radiator can be adjusted by the first cooling fan 15 to accelerate the heat dissipation of the first radiator 14.

[0043] In the embodiment of the present application, the first heat dissipation branch 11 in the front-end heat exchange module 10 may include a second radiator 111 and a first cooling assembly;

[0044] The second radiator 111 is arranged toward the first radiator 14, so that the first radiator 14 and the second radiator 111 are layered and stacked in front of the first cooling fan 15, so that the second radiator 111 can also cooperate with the first cooling fan 15 for heat dissipation, and the first cooling fan 15 is used to adjust the air flow rate around the second radiator 111 to accelerate the heat dissipation of the second radiator 111.

[0045] The inlet of the first heat dissipation branch 11 is connected to the inlet of the second radiator 111, and the outlet of the second radiator 111 is connected to the outlet of the first heat dissipation branch 11. In the embodiment of the present application, a first cooling component is also provided between the inlet of the first heat dissipation branch 11 and the inlet of the second radiator 111. In some embodiments, the first cooling component can be directly connected in series to the coolant transmission pipeline between the inlet of the first heat dissipation branch 11 and the inlet of the second radiator 111, or provided on one side of the coolant transmission pipeline between the inlet of the first heat dissipation branch 11 and the inlet of the second radiator 111. The first cooling component is used to reduce the temperature of the coolant in the pipeline and the temperature of the coolant flowing into the second radiator 111. In this way, the heat exchanged between the second radiator 111 and the outside air is reduced, thereby reducing the air temperature around the second radiator 111 and the first radiator 14, avoiding the influence of the heat dissipation of the second radiator 111 on the heat exchange efficiency of the first radiator 14, and ensuring the cooling effect of the engine cooling circuit. In this way, there is no need to increase the speed of the cooling fan to ensure the heat dissipation effect of the first radiator, thereby avoiding the impact of the high-speed operation of the first cooling fan on the NVH performance in the vehicle.

[0046] Based on the above embodiments, Figure 2 As shown, in the embodiment of the present application, a second three-way proportional valve 112 may be further provided in the first heat dissipation branch 11;

[0047] The first end of the second three-way proportional valve 112 is communicated with the inlet of the first heat dissipation branch 11;

[0048] The second end of the second three-way proportional valve 112 is communicated with the inlet of the second radiator 111;

[0049] The first cooling assembly is disposed between the inlet of the second radiator 111 and the third end of the second three-way proportional valve 112 .

[0050] By adjusting the valve opening of the second three-way proportional valve 112, the flow rate of the coolant flowing through the first cooling component is adjusted, so that the temperature of the coolant input to the second radiator 111 can be flexibly and accurately adjusted according to needs.

[0051] like Figure 2 As shown, an electronically driven water pump 113 may be provided at the inlet of the first heat dissipation branch 11 to drive the coolant to circulate between the branches of the front-end heat exchange module 10, and a first expansion water tank 114 may be provided for water replenishment. When there are three cross-connected pipelines, the three pipelines may be connected at the connection points through pipeline connectors.

[0052] Based on the above embodiment, the first cooling assembly may include a third radiator 115 and / or a second cooling fan 116 .

[0053] The third radiator 115 and / or the second cooling fan 116 are respectively arranged between the third end of the second three-way proportional valve and the inlet of the second radiator. For example, the third radiator 115 is directly connected in series between the inlet of the second radiator 111 and the third end of the second three-way proportional valve 112, so that the coolant flowing into the second radiator 111 is first dissipated and cooled in the third radiator 115. Alternatively, the second cooling fan 116 is arranged on one side of the coolant pipeline between the inlet of the second radiator 111 and the third end of the second three-way proportional valve 112, and the temperature of the coolant circulating in the pipeline is reduced by the second cooling fan 116. Alternatively, the third radiator 115 and the second cooling fan 116 are arranged at the same time, and the second cooling fan 116 is arranged at a position facing the third radiator 115, so that the air flow rate around the third radiator 115 is adjusted by the second cooling fan 116 to accelerate the heat dissipation of the third radiator 115.

[0054] When the first cooling assembly includes the third radiator 115 and / or the second cooling fan 116, the first cooling assembly is arranged at a position that is offset from the position toward which the first cooling fan 15 is directed. For example, the first radiator 14, the second radiator 111, and the first cooling fan 15 are arranged in the middle of the front end of the vehicle, the second radiator 111 is arranged on the first floor, the first radiator 14 is arranged on the second floor, and the first cooling fan 15 is arranged on the third floor; the first cooling assembly is arranged on the left side of the front end of the vehicle. This prevents the heat exchanged from the coolant pipe to the air by the first cooling assembly from affecting the heat dissipation effect of the second radiator 111 and the first radiator 14.

[0055] In some embodiments, the first cooling component can also be other forms of condensers or heat exchangers. One side of the condenser pipe is connected in series before the second radiator, and the other side of the pipe is connected in series in a cooling circuit to reduce the coolant temperature at the inlet of the second radiator.

[0056] In some embodiments, Figure 3 As shown, the second heat dissipation branch 12 includes a fourth heat sink 121 and a second cooling assembly;

[0057] The fourth radiator 121 is disposed toward the first cooling fan 15 so that the fourth radiator 121 cooperates with the first cooling fan 15 to dissipate heat. The first cooling fan 15 is used to adjust the air flow rate around the fourth radiator 121 to accelerate the heat dissipation of the fourth radiator 121 .

[0058] The inlet of the fourth radiator 121 is communicated with the inlet of the second radiating branch 12, and the outlet of the fourth radiator 121 is communicated with the outlet of the second radiating branch 12;

[0059] The second cooling component is disposed between the inlet of the fourth radiator 121 and the inlet of the second heat dissipation branch 12. The second cooling component is used to reduce the temperature of the coolant flowing into the fourth radiator 121.

[0060] The embodiment of the present application uses the fourth radiator to further reduce the temperature of the coolant output from the second radiator, so that the temperature of the coolant input to the electric drive and electric control branch meets the water inlet temperature required by the electric drive and electric control branch. A second cooling component is arranged before the inlet end of the fourth radiator, and the second cooling component is used to reduce the temperature of the coolant flowing into the fourth radiator, thereby reducing the heat dissipation of the fourth radiator and reducing the influence of the heat dissipation of the fourth radiator on the air temperature around the second radiator and the first radiator, thereby ensuring the heat exchange efficiency of the second radiator and the first radiator.

[0061] Furthermore, a third three-way proportional valve 122 may be provided at the inlet of the fourth radiator 121 .

[0062] The first end of the third three-way proportional valve 122 is communicated with the inlet of the second heat dissipation branch 12;

[0063] The second end of the third three-way proportional valve 122 is communicated with the inlet of the fourth radiator 121;

[0064] The second cooling assembly is disposed between the inlet of the second heat dissipation branch 12 and the third end of the third three-way proportional valve 122 .

[0065] In some embodiments, the second cooling assembly can be directly connected in series to the coolant transmission pipeline between the inlet of the second heat dissipation branch 12 and the third end of the third three-way proportional valve 122, or be arranged on one side of the coolant transmission pipeline between the inlet of the second heat dissipation branch 12 and the third end of the third three-way proportional valve 122. The second cooling assembly is used to reduce the temperature of the coolant in the pipeline and the temperature of the coolant flowing into the fourth radiator 121. In this way, the heat exchanged between the fourth radiator 121 and the outside air is reduced, thereby reducing the air temperature around the fourth radiator 121, the second radiator 111 and the first radiator 14, avoiding the influence of the heat dissipation of the fourth radiator 121 on the heat exchange efficiency of the first radiator 14 and the second radiator 111, and ensuring the cooling effect of the engine cooling circuit 40 and the cooling effect of the intercooler branch 20. In this way, there is no need to increase the speed of the cooling fan to ensure the heat dissipation effect of the first radiator 14, avoiding the influence of the high-speed operation of the cooling fan on the NVH performance in the vehicle.

[0066] In some embodiments, the second cooling assembly includes a fifth radiator 123 and / or a third cooling fan 124, and the second cooling assembly is arranged at a position that is offset from the position toward which the first cooling fan 14 is directed. It should be noted that the arrangement of the second cooling assembly can refer to the description of the arrangement of the first cooling assembly, and will not be repeated here. Wherein, in the case where the second cooling assembly and the first cooling assembly are arranged at the same time, the second cooling assembly and the first cooling assembly can be arranged on the left and right sides of the front end of the vehicle, respectively.

[0067] like Figure 4 As shown, based on the above embodiment, the front-end heat exchange module 10 further includes an air-cooled condenser 16;

[0068] The air-cooled condenser 16 is arranged on the plane where the fourth radiator 121 is located and faces the first cooling fan 15. The air-cooled condenser 16 and the fourth radiator 121 are both used in conjunction with the first cooling fan 15 for heat dissipation.

[0069] The air-cooled condenser 16 is connected in series in the refrigerant circuit of the thermal management system, and is used to dissipate the heat of the battery and / or the heat of the passenger compartment absorbed by the refrigerant circuit.

[0070] The refrigerant circuit can be understood as an air-conditioning refrigeration circuit. In the refrigerant circuit, the air-cooled condenser 16 is arranged at the outlet of the compressor 51, the inlet of the air-cooled condenser 16 is connected to the outlet of the compressor 51, the outlet of the air-cooled condenser 16 is connected to the inlet of the refrigeration branch, and the outlet of the refrigeration branch is connected to the inlet of the compressor.

[0071] The cooling branch may include an air conditioning cooling branch 52 and a battery cooling branch, and the air conditioning cooling branch 52 is connected in parallel with the battery cooling branch.

[0072] In some embodiments, the air conditioning refrigeration branch 52 may be provided with an evaporator, an expansion valve and other parts, and the evaporator is used to absorb the temperature of the passenger compartment to achieve refrigeration of the passenger compartment. The battery cooling branch may be provided with a battery cooler / plate heat exchanger 53, a two-way solenoid valve 54 and other parts, and the battery cooler / plate heat exchanger 53 is used to exchange the heat in the coolant flowing through the battery pack branch 55 to the refrigerant circuit to achieve battery cooling. In this way, the heat in the refrigerant circuit may include heat absorbed from the passenger compartment and / or heat from the battery.

[0073] The air-cooled condenser 16 exchanges the heat in the refrigerant circuit to the outside air. Under the action of the first cooling fan 15, the air flow around the air-cooled condenser is accelerated to improve the heat dissipation effect of the air-cooled condenser. In addition, the first cooling component is used to reduce the heat exchanged to the air by the second radiator 111, and the second cooling component is used to reduce the heat exchanged to the air by the fourth radiator 121, thereby reducing the temperature of the ambient air that exchanges heat with the first radiator 14, the second radiator 111, the fourth radiator 121 and the air-cooled condenser 16 as a whole, improving the heat dissipation effect of each radiator and condenser, and enhancing the cooling effect of the engine, the passenger compartment, the battery pack, and the intercooler branch.

[0074] The present application also proposes a thermal management system, such as Figure 1-4 As shown, the thermal management system 1 includes a front-end heat exchange module 10, an electric drive and electric control branch 30, and an intercooling branch 20;

[0075] The inlet of the first heat dissipation branch 11 in the front-end heat exchange module 10 is respectively connected to the outlet of the electric drive and electric control branch 30 and the outlet of the intercooling branch 20;

[0076] The outlet of the first heat dissipation branch 11 passes through the first end of the first three-way proportional valve 13 in the front-end heat exchange module 10 and the second end of the first three-way proportional valve 13, and is communicated with the inlet of the intercooling branch 20;

[0077] The outlet of the second heat dissipation branch 12 in the front-end heat exchange module 10 is connected to the inlet of the electric drive and electric control branch 30;

[0078] The inlet of the second heat dissipation branch 12 is communicated with the third end of the first three-way proportional valve 13 .

[0079] In some embodiments, the thermal management system 1 further includes an engine cooling circuit 40 , and the front-end heat exchange module 10 further includes a first radiator 14 and a first cooling fan 15 , wherein the first radiator 14 is connected in series in the engine cooling circuit 40 .

[0080] In some embodiments, the engine cooling circuit 40 includes an engine 41 , a thermostat 42 , an engine internal mechanical water pump 43 , and a second expansion water tank 44 .

[0081] The small cycle of the engine cooling system / engine cooling circuit is the internal cycle of the engine, which is a circuit consisting of the engine (water jacket) 41, the thermostat 42, and the engine mechanical water pump 43.

[0082] The large cycle of the engine cooling system / engine circuit is a circuit consisting of an engine (water jacket) 41, a thermostat 42, a first radiator 14 and a first cooling fan 15, and also includes a water replenishment circuit formed by connecting a second expansion water tank 44 with a front pipe joint of an engine mechanical water pump 43, and an overflow circuit formed by connecting the engine water jacket 41 and the first radiator 14.

[0083] The thermal management system also includes a heating system, a battery cooling system, and a battery heating system.

[0084] The heating system includes: a circuit including an engine thermostat 42, a three-way solenoid valve 61, a heating circuit component 62 and an internal mechanical water pump 43 of the engine, a water replenishment circuit formed by connecting a second expansion water tank 44 with a pipe joint in front of the engine mechanical water pump 43, and an overflow circuit formed by connecting the second expansion water tank 44 with the engine water jacket;

[0085] The battery cooling system includes: a battery cooling refrigerant circuit including an air conditioning compressor 51, an air-cooled condenser 16, a two-way solenoid valve 54, and a plate heat exchanger 53, and a coolant circuit including a plate heat exchanger 53 and a battery pack branch 55;

[0086] The battery heating system includes: a circuit including an engine thermostat 42, a three-way solenoid valve 61, a plate heat exchanger 53 and an internal mechanical water pump 43 of the engine, a circuit including the plate heat exchanger 53 and a battery pack branch 55, a water replenishment circuit formed by connecting the second expansion water tank 44 to the pipe joint in front of the engine mechanical water pump 43, and an overflow circuit formed by connecting the second expansion water tank 44 to the engine water jacket 41.

[0087] In some embodiments, the first radiator 14, the second radiator 111, the third radiator 115, the fourth radiator 121 and the fifth radiator 124 may all be tube-belt radiators; the air-cooled condenser 16 may be a fin-type air-cooled condenser; the first cooling fan 15, the second cooling fan 116 and the third cooling fan 123 may all be steplessly regulated electric fans controlled by PWM or Lin signals; the plate heat exchanger 53 may be a core-plate three-inlet and three-outlet heat exchanger, in which two paths are for antifreeze / coolant and one path is for refrigerant; the electronically driven water pump 113 may be a steplessly speed-regulated water pump controlled by PWM or Lin signals; the three-way solenoid valve 31 may be a two-position three-way solenoid valve, the first three-way proportional valve 13, the second three-way proportional valve 112 and the third three-way proportional valve 122 may adjust the valve opening according to the requirements of the thermal management system, and the two-way solenoid valve 54 may be a single-way solenoid valve.

[0088] In the embodiments of the present application, each component or part is connected and interacts with each other through pipes and pipe joints. The cooling fan, electronically driven water pump, solenoid valve, proportional valve, etc. are all controlled by the electrical signal of the whole vehicle, and the switching between different system functions is realized according to the needs of different systems.

[0089] After testing in experiments, in actual implementation, the front-end heat exchange module and thermal management system proposed in the embodiment of the present application can reduce the inlet and outlet air temperatures of the first radiator by 5°C and 5.4°C respectively under low-speed climbing conditions by setting a third radiator in front of the second radiator, and finally improve the cooling performance of the engine cooling circuit where the first radiator is located by 5.2°C. In addition, by setting a fifth radiator in front of the fourth radiator, the heat dissipation of the fourth radiator is reduced, so that the outlet air temperature of the fourth radiator is reduced by 6.3°C. Under the action of the fifth radiator, the inlet and outlet air temperatures of the second radiator are reduced by 2.4°C and 5°C respectively, so that the cooling performance of the medium-temperature cooling circuit is improved by 5.7°C, etc.; Based on such effects, the front-end heat exchange module and thermal management system proposed in the present application effectively improve the heat exchange efficiency of the front-end heat exchange module. In addition, through the reasonable distribution of the heat exchange amount of the whole vehicle thermal management, the problems of increasing costs, sharply deteriorating NVH performance (noise outside the car deteriorates by more than 4dBA, noise inside the car deteriorates by about 10dBA, and steering wheel and seat vibration deteriorates by about twice) and increased power consumption (increased by about 53.8%) caused by roughly increasing the cooling fan power to improve the heat exchange efficiency of the radiator and meet the heat exchange needs under the existing vehicle thermal management architecture are solved.

[0090] In order to implement the above embodiment, the present application embodiment also proposes a vehicle, such as Figure 5 As shown, a vehicle 50 may include the thermal management system 1 described in any of the above embodiments.

[0091] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A front-end heat exchange module of a thermal management system, characterized in that: The front end heat exchange module comprises: A first heat dissipation branch, a second heat dissipation branch, and a first three-way proportional valve; The inlet of the first heat dissipation branch is respectively connected to the outlet of the electric drive and electric control branch and the outlet of the intercooling branch in the thermal management system; The outlet of the first heat dissipation branch is communicated with the first end of the first three-way proportional valve, the second end of the first three-way proportional valve is communicated with the inlet of the intercooling branch, and the third end of the first three-way proportional valve is communicated with the inlet of the second heat dissipation branch; The outlet of the second heat dissipation branch is communicated with the inlet of the electric drive and electric control branch.

2. The front-end heat exchange module according to claim 1, characterized in that: The front-end heat exchange module further includes a first radiator connected in series in the engine cooling circuit, a first cooling fan matched with the first radiator, the first cooling fan is arranged toward the first radiator, and the first heat dissipation branch includes a second radiator and a first cooling assembly; The second radiator is arranged toward the first cooling fan so that the second radiator cooperates with the first cooling fan to dissipate heat; The inlet of the second radiator is connected to the inlet of the first radiating branch, and the outlet of the second radiator is connected to the outlet of the first radiating branch; The first cooling assembly is arranged between the inlet of the second radiator and the inlet of the first heat dissipation branch; The second cooling assembly is used to reduce the temperature of the coolant flowing into the second radiator.

3. The front-end heat exchange module according to claim 2, characterized in that: The first heat dissipation branch further includes a second three-way proportional valve; The first end of the second three-way proportional valve is communicated with the inlet of the first heat dissipation branch; The second end of the second three-way proportional valve is in communication with the inlet of the second radiator; The first cooling assembly is disposed between an inlet of the second radiator and a third end of the second three-way proportional valve.

4. The front-end heat exchange module according to claim 2 or 3, characterized in that: The first cooling component includes a third radiator and / or a second cooling fan, and the first cooling component is arranged at a position staggered from the position toward which the first cooling fan is directed.

5. The front-end heat exchange module according to claim 1, characterized in that: The front-end heat exchange module further includes a first radiator connected in series in the engine cooling circuit, a first cooling fan matched with the first radiator, the first cooling fan is arranged toward the first radiator, and the second heat dissipation branch includes a fourth radiator and a second cooling assembly; The fourth radiator is arranged toward the first cooling fan, so that the fourth radiator cooperates with the first cooling fan to dissipate heat; The inlet of the fourth radiator is communicated with the inlet of the second radiating branch, and the outlet of the fourth radiator is communicated with the outlet of the second radiating branch; The second cooling assembly is arranged between the inlet of the fourth radiator and the inlet of the second heat dissipation branch; The second cooling assembly is used to reduce the temperature of the coolant flowing into the fourth radiator.

6. The front-end heat exchange module according to claim 5, characterized in that: The second heat dissipation branch further includes a third three-way proportional valve; The first end of the third three-way proportional valve is communicated with the inlet of the second heat dissipation branch; The second end of the third three-way proportional valve is communicated with the inlet of the fourth radiator; The second cooling assembly is arranged between the inlet of the second heat dissipation branch and the third end of the third three-way proportional valve.

7. The front-end heat exchange module according to claim 5 or 6, characterized in that: The second cooling assembly includes a fifth radiator and / or a third cooling fan, and the second cooling assembly is disposed at a position offset from the position toward which the first cooling fan is directed.

8. The front-end heat exchange module according to claim 5, characterized in that: The front-end heat exchange module also includes an air-cooled condenser; The air-cooled condenser is arranged on the plane where the fourth radiator is located, the air-cooled condenser faces the first cooling fan, and the air-cooled condenser and the fourth radiator are both used in conjunction with the first cooling fan for heat dissipation; The air-cooled condenser is connected in series in the refrigerant circuit of the thermal management system, and the air-cooled condenser is used to dissipate the heat of the battery and / or the heat of the passenger compartment absorbed by the refrigerant circuit.

9. A thermal management system, characterized in that: The thermal management system comprises a front-end heat exchange module, an electric drive and electric control branch, and an intercooler branch of the thermal management system according to any one of claims 1 to 8; The inlet of the first heat dissipation branch in the front-end heat exchange module is respectively connected to the outlet of the electric drive and electric control branch and the outlet of the intercooling branch; The outlet of the first heat dissipation branch passes through the first end of the first three-way proportional valve in the front-end heat exchange module and the second end of the first three-way proportional valve, and is communicated with the inlet of the intercooling branch; The outlet of the second heat dissipation branch in the front-end heat exchange module is connected to the inlet of the electric drive and electric control branch; Wherein, the inlet of the second heat dissipation branch is communicated with the third end of the first three-way proportional valve.

10. A vehicle, characterized in that: Comprising the thermal management system of claim 9.

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