Thermal management system and vehicle having same

Abstract

The present application relates to the technical field of vehicle thermal management. Provided are a thermal management system and a vehicle having same. The thermal management system comprises a power battery thermal cycle loop, an engine thermal cycle loop and an electromagnetic valve; the engine thermal cycle loop comprises a main pipe, a passenger compartment warm air pipe and a battery heat exchange pipe; the electromagnetic valve comprises a first valve port, a second valve port, a third valve port, a fourth valve port and a fifth valve port, the first valve port being in communication with the main pipe, the second valve port being in communication with the main pipe, the first valve port being located at an upstream end of the second valve port, the third valve port being in communication with an inlet end of the passenger compartment warm air pipe, the fourth valve port being in communication with an outlet end of the passenger compartment warm air pipe, the outlet end of the passenger compartment warm air pipe being in communication with an inlet end of the battery heat exchange pipe, and the fifth valve port being in communication with an outlet end of the battery heat exchange pipe. The present application enables regulation at different ratios to simultaneously meet the heating and cooling control requirements of passenger compartments and battery systems, thereby achieve effective utilization of vehicle energy and optimization of engine compartment spaces.

Description

Heat management system and vehicle having the same TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle heat management, in particular to a heat management system and a vehicle having the same. The present application claims priority to the patent application filed on June 26, 2024 with the China National Intellectual Property Office and entitled "Heat management system and vehicle having the same", application number 202410841236.1. BACKGROUND

[0002] A hybrid vehicle has two sets of energy systems, namely a battery and an engine. To achieve energy saving, the two systems need to be coupled, and different components are needed to achieve the coupling between the systems.

[0003] To achieve the effective coupling of the system and the effective use of energy with the least cost and the most functions, the existing solutions in the prior art achieve the coupling of the system through multiple three-way valves, four-way valves, etc. This cannot meet the cooling requirements of the mid-cooling and electric drive electric control, and the engine mid-cooling front end low-temperature radiator and the electric drive radiator cannot be coupled. The cooling module is thick, the vehicle wind resistance is large, and the energy consumption is large. SUMMARY

[0004] The main purpose of the present application is to provide a heat management system and a vehicle having the same to solve the problem that the cooling and electric drive systems in the prior art cannot achieve flexible proportional adjustment to reduce energy consumption.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a heat management system is provided, comprising: a power battery heat circulation loop; an engine heat circulation loop, the engine heat circulation loop comprising a main pipe, a passenger cabin heating pipe, and a battery heat exchange pipe, the main pipe being used for guiding the engine waste water out of the engine or back into the engine, the passenger cabin heating pipe being used for conveying warm air to the passenger cabin, and the battery heat exchange pipe being used for conveying heat to the power battery heat circulation loop; and an electromagnetic valve, the electromagnetic valve having a first valve port, a second valve port, a third valve port, a fourth valve port, and a fifth valve port, the first valve port being in communication with the main pipe, the second valve port being in communication with the main pipe, the first valve port being located at the upstream end of the second valve port, the third valve port being in communication with the inlet end of the passenger cabin heating pipe, the fourth valve port being in communication with the outlet end of the passenger cabin heating pipe, the outlet end of the passenger cabin heating pipe being in communication with the inlet end of the battery heat exchange pipe, and the fifth valve port being in communication with the outlet end of the battery heat exchange pipe.

[0006] Further, a PTC heater and a heating core are arranged on the passenger cabin heating pipe, the PTC heater is located at the upstream end of the heating core, the outlet end of the passenger cabin heating pipe is connected to the inlet end of the battery heat exchange pipe at a first connection point, the heating core is located between the PTC heater and the first connection point, and the heating core is used for guiding the heat in the passenger cabin heating pipe out of the passenger cabin.

[0007] Further, the PTC heater is located at an upstream end of the heater core, and a first connection point is located at a position where an outlet end of the passenger compartment heating line and an inlet end of the battery heat exchange line communicate with each other, and the heater core is located between the fourth valve port and the first connection point, and the heater core is configured to guide heat in the passenger compartment heating line to the passenger compartment.

[0008] Further, the battery heat exchange line is provided with a water-water heat exchanger, and the power battery heat circulation loop is provided with a power battery, and the power battery heat circulation loop exchanges heat with the battery heat exchange line through the water-water heat exchanger to perform a heating operation on the power battery.

[0009] Further, the main line is provided with an EGR device at a position close to an outlet of the cooling liquid of the engine, and the main line is connected in parallel with the turbocharging loop.

[0010] Further, the heat line system further comprises: a motor circulation loop, the motor circulation loop is provided with a low-temperature radiator, the low-temperature radiator is arranged adjacent to the condenser, and the motor circulation loop is further provided with a motor component to be cooled, and the low-temperature radiator is configured to guide heat of the motor component to be cooled to the condenser.

[0011] Further, the motor component to be cooled comprises a DCDC converter, a rear electric drive inverter, a double inverter, and an oil cooler arranged in sequence on the motor circulation loop.

[0012] Further, the heat line system further comprises: an engine intercooler line, the engine intercooler line is provided with a water-cooled intercooler, and the heat line system further comprises a three-way valve, the three-way valve has a sixth valve port, a seventh valve port, and an eighth valve port, the sixth valve port and the seventh valve port are arranged opposite to each other, the sixth valve port and the seventh valve port both communicate with the motor circulation loop, the sixth valve port is located at an upstream end of the seventh valve port, the seventh valve port communicates with one end of the engine intercooler line, and the other end of the engine intercooler line communicates with the low-temperature radiator.

[0013] Further, the engine heat circulation loop further comprises an engine cooling line, two ends of the engine cooling line respectively communicate with a cooling liquid inlet of the engine and a cooling liquid outlet of the engine, and the engine cooling line is provided with an engine radiator, and the engine radiator is configured to guide waste heat of the engine to the external atmosphere.

[0014] According to another aspect of the present application, a vehicle is provided, and the vehicle comprises a heat management system, and the heat management system is the heat management system described above.

[0015] The technical scheme of the application is applied to a heat management system, the heat management system couples a power battery heat circulation loop and an engine heat circulation loop through an electromagnetic valve, the engine heat circulation loop comprises a main pipeline, a passenger cabin warm air pipeline and a battery heat exchange pipeline, the passenger cabin warm air pipeline is used for conveying warm air to the passenger cabin, the battery heat exchange pipeline is used for conveying heat to the power battery heat circulation loop, the electromagnetic valve can realize coupling of the engine and the battery system, and simultaneously realize sharing of a heat source by the passenger cabin and the battery system, switching of the electromagnetic valve can realize different proportion adjustment to simultaneously meet heating requirements of the passenger cabin and the battery system, meet cold control requirements of the engine and the battery system, effectively utilize engine waste heat to realize effective utilization of vehicle energy and energy saving, simultaneously realize optimization of vehicle cost, and vehicle engine compartment space arrangement, and reduce cost and energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and serve as an aid in explaining the present application, and do not constitute improper limitations on the present application. In the drawings:

[0017] FIG. 1 shows a structural schematic diagram of an embodiment of a heat management system according to the present application.

[0018] Among them, the above drawings include the following reference signs:

[0019] 2, third valve port; 3, first valve port; 4, second valve port; 5, fourth valve port; 6, fifth valve port; 7, sixth valve port; 8, seventh valve port; 9, eighth valve port;

[0020] 10, power battery heat circulation loop;

[0021] 20, engine heat circulation loop; 21, main pipeline; 211, EGR device; 212, turbocharging loop; 22, passenger cabin warm air pipeline; 221, PTC heater; 222, warm air core; 23, battery heat exchange pipeline; 231, water-water heat exchanger;

[0022] 30, motor circulation loop; 31, low-temperature radiator; 32, condenser; 33, DCDC converter; 34, rear electric drive inverter; 35, double inverter; 36, oil cooler;

[0023] 40, engine intercooling pipeline; 41, water-cooled intercooler;

[0024] 50, engine cooling pipeline; 51, engine radiator;

[0025] 60, electromagnetic valve. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0028] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and above-described drawings are used to distinguish similar objects and are not necessarily used to describe a specific sequential or chronological order. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the present application described herein are capable of operation in other sequences than the one illustrated or other than the one explicitly described herein. Furthermore, the terms "comprise", "comprising", "include", "including", and the like are intended to cover non-exclusive inclusion, such that, for example, processes, methods, articles, or apparatuses that comprise, consist of, consist essentially of, or consist of a list of steps or components recited as such are not limited to those steps or components, but can include additional steps or components not expressly listed or inherent to such processes, methods, articles, or apparatuses.

[0029] Now, example embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these example embodiments can be implemented in various different forms and should not be construed as being limited to only the embodiments set forth herein. It should be understood that the embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art, and in the drawings, the thicknesses of layers and regions can be exaggerated for clarity, and the same reference numerals are used throughout the drawings and thus repeated descriptions are omitted.

[0030] In conjunction with FIG. 1, according to a specific embodiment of the present application, a thermal management system is provided.

[0031] Specifically, the thermal management system comprises a power battery thermal circulation loop 10, an engine thermal circulation loop 20 and an electromagnetic valve 60; the engine thermal circulation loop 20 comprises a main pipe 21, a passenger cabin warm air pipe 22 and a battery heat exchange pipe 23, the main pipe 21 is used for guiding the engine waste water out of the engine or re-into the engine, the passenger cabin warm air pipe 22 is used for conveying warm air to the passenger cabin, and the battery heat exchange pipe 23 is used for conveying heat to the power battery thermal circulation loop 10; the electromagnetic valve 60 has a first valve port 3, a second valve port 4, a third valve port 2, a fourth valve port 5 and a fifth valve port 6, the first valve port 3 is communicated with the main pipe 21, the second valve port 4 is communicated with the main pipe 21, the first valve port 3 is located at the upstream end of the second valve port 4, the third valve port 2 is communicated with the inlet end of the passenger cabin warm air pipe 22, the fourth valve port 5 is communicated with the outlet end of the passenger cabin warm air pipe 22, the outlet end of the passenger cabin warm air pipe 22 is communicated with the inlet end of the battery heat exchange pipe 23, and the fifth valve port 6 is communicated with the outlet end of the battery heat exchange pipe 23.

[0032] By using the technical scheme, the thermal management system couples the power battery thermal circulation loop 10 and the engine thermal circulation loop 20 through the electromagnetic valve 60, the engine thermal circulation loop 20 comprises the main pipe 21, the passenger cabin warm air pipe 22 and the battery heat exchange pipe 23, the passenger cabin warm air pipe 22 is used for conveying warm air to the passenger cabin, and the battery heat exchange pipe 23 is used for conveying heat to the power battery thermal circulation loop 10, the electromagnetic valve 60 can realize the coupling of the engine and the battery system, and realize the sharing of the heat source of the passenger cabin and the battery system, the switching of the electromagnetic valve 60 can realize the different proportion adjustment to simultaneously meet the heating requirements of the passenger cabin and the battery system, meet the cooling control requirements of the engine and the battery system, effectively utilize the engine waste heat to realize the effective utilization and energy saving of the whole vehicle energy, simultaneously realize the optimization of the whole vehicle cost, the space arrangement of the whole vehicle engine cabin, and reduce the cost and energy consumption.

[0033] In an embodiment of the present application, the electromagnetic valve 60 is provided with a valve core, and the operation of the valve core can make any two valve ports of the first valve port 3, the second valve port 4, the third valve port 2, the fourth valve port 5 and the fifth valve port 6 communicated with each other to realize the heating mode adjustment of the passenger cabin and the battery system.

[0034] Specifically, the passenger cabin warm air pipe 22 is provided with a PTC heater 221 and a warm air core 222, the PTC heater 221 is located at the upstream end of the warm air core 222, the outlet end of the passenger cabin warm air pipe 22 is communicated with the inlet end of the battery heat exchange pipe 23 at a first connection point, the warm air core 222 is located between the PTC heater 221 and the first connection point, and the warm air core 222 is used for guiding the heat in the passenger cabin warm air pipe 22 out of the passenger cabin.

[0035] In this way, the position of the warm air core 222 can give priority to the needs of the passengers in the passenger cabin, and the passenger user can operate the adjustment of the warm air core 222 to determine whether it works, and when the user has a warm air demand, the blower is adjusted to work to make the warm air core 222 have a heat exchange effect, and if the user has no warm air demand, the blower is adjusted to stop working, at this time the warm air core 222 on the passenger cabin warm air pipeline 22 acts as a resistance element, and at this time the battery system can achieve the maximum heat power for heating the battery.

[0036] In an embodiment of the present application, a PTC heater 221 and a warm air core 222 are arranged on the passenger cabin warm air pipeline 22, the PTC heater 221 is located at the upstream end of the warm air core 222, the outlet end of the passenger cabin warm air pipeline 22 and the inlet end of the battery heat exchange pipeline 23 are connected to form a first connection point, and the warm air core 222 is located between the fourth valve port 5 and the first connection point. The warm air core 222 is used to guide the heat in the passenger cabin warm air pipeline 22 out to the passenger cabin.

[0037] Specifically, a water-water heat exchanger 231 is arranged on the battery heat exchange pipeline 23, and a power battery is arranged on the power battery thermal circulation loop 10. The power battery thermal circulation loop 10 exchanges heat with the battery heat exchange pipeline 23 through the water-water heat exchanger 231 to perform heating work on the power battery. In this way, the heat generated on the battery heat exchange pipeline 23 can be transferred to the power battery thermal circulation loop 10 through the water-water heat exchanger 231 to heat the battery system.

[0038] In an embodiment of the present application, by adjusting the on-off of the electromagnetic valve 60, the warm air core 222 located on the passenger cabin warm air pipeline 22 can directly supply the hot water heated by the PTC heater 221 to the water-water heat exchanger 231 without the need for warm air demand, so as to speed up the heating rate of the battery system. When the user has both warm air and battery system heating demand, the warm air core 222 and the water-water heat exchanger 231 are adjusted to be in parallel state, the whole loop resistance is smaller, and the system heating efficiency is faster.

[0039] Specifically, the main pipeline 21 is provided with an EGR device 211 at one end close to the coolant outlet of the engine, and the main pipeline 21 is connected in parallel with a turbocharging circuit 212. In this way, the EGR device 211 and the turbocharging circuit 212 can work at the same time, which can improve the efficiency and power output of the engine, reduce the emission amount, and at the same time, the turbocharging circuit can increase the pressure and density of the air, further improve the performance of the engine and reduce the emission.

[0040] Further, the heat pipe system further comprises a motor circulation loop 30, a low-temperature radiator 31 is arranged on the motor circulation loop 30, the low-temperature radiator 31 is arranged adjacent to a condenser 32, and a motor component to be cooled is arranged on the motor circulation loop 30, and the low-temperature radiator 31 is used to conduct heat of the motor component to be cooled to the condenser 32. In this way, heat of the motor component to be cooled can be quickly conducted to the condenser 32, and the cooling requirements of engine intercooling and electric drive electric control can be met at the same time.

[0041] In an embodiment of the present application, the motor component to be cooled comprises a DCDC converter 33, a rear electric drive inverter 34, a double inverter 35 and an oil cooler 36 arranged on the motor circulation loop 30 in sequence.

[0042] The low-temperature radiator 31 and the condenser 32 can ensure that heat generated by the DCDC converter 33, the rear electric drive inverter 34, the double inverter 35 and the oil cooler 36 during operation is dissipated in time to ensure that the above-mentioned motor component to be cooled works within a safe temperature, improve performance and prolong service life.

[0043] Further, the heat pipe system further comprises an engine intercooling pipe 40, a water-cooled intercooler 41 is arranged on the engine intercooling pipe 40, and the heat pipe system further comprises a three-way valve, the three-way valve has a sixth valve port 7, a seventh valve port 8 and an eighth valve port 9, the sixth valve port 7 and the seventh valve port 8 are arranged opposite to each other, the sixth valve port 7 and the seventh valve port 8 are both in communication with the motor circulation loop 30, the sixth valve port 7 is located at an upstream end of the seventh valve port 8, the seventh valve port 8 is in communication with one end of the engine intercooling pipe 40, and the other end of the engine intercooling pipe 40 is in communication with the low-temperature radiator 31.

[0044] In this way, different opening and communication modes of the sixth valve port 7, the seventh valve port 8 and the eighth valve port 9 of the three-way valve can be used to adjust the electric drive control mode of the whole vehicle to achieve heat dissipation and cooling of different systems.

[0045] It should be noted that when the sixth valve port 7 and the eighth valve port 9 are in communication and the seventh valve port 8 is closed, the low-temperature radiator 31 can be used to dissipate heat for the electric drive control system alone;

[0046] When the sixth valve port 7, the seventh valve port 8 and the eighth valve port are all in communication, the low-temperature radiator 31 can be used to dissipate heat for the engine system and the electric drive control system at the same time;

[0047] When the sixth valve port 7 and the seventh valve port 8 are in communication and the eighth valve port 9 is closed, the low-temperature radiator can be used to dissipate heat for the engine system alone.

[0048] Further, the engine heat circulation loop 20 further comprises an engine cooling pipeline 50, two ends of the engine cooling pipeline 50 are communicated with a cooling liquid inlet of the engine and a cooling liquid outlet of the engine respectively, and the engine cooling pipeline 50 is provided with an engine radiator 51, and the engine radiator 51 is used for leading the waste heat of the engine to the external atmosphere.

[0049] In this way, the waste heat generated in the engine system can be dissipated in time through the engine radiator 51, so as to ensure the performance of the engine.

[0050] According to another embodiment of the present application, a vehicle is further provided, and the vehicle has a heat management system, which is the heat management system of the above-mentioned embodiment.

[0051] Preferably, the vehicle is a hybrid vehicle.

[0052] From the above description, it can be seen that the above-mentioned embodiment of the present application achieves the following technical effects:

[0053] The heat pipeline system comprises the engine water-cooled intercooler 41 and the three-way valve, the water-cooled intercooler 41 is communicated with the low-temperature radiator 31 through the engine intercooling pipeline 40, and since the temperature of the engine intercooling cycle and the electric drive cycle system is similar, effective energy coupling can be realized through the same low-temperature radiator 31 and one three-way valve, so as to reduce the cost of the whole vehicle and optimize the space arrangement of the whole vehicle.

[0054] The heat management system comprises the power battery heat circulation loop 10, the engine heat circulation loop 20 and the electromagnetic valve 60.

[0055] The electromagnetic valve 60 has a first valve port 3, a second valve port 4, a third valve port 2, a fourth valve port 5 and a fifth valve port 6, the first valve port 3 is communicated with the main pipeline 21, the second valve port 4 is communicated with the main pipeline 21, the first valve port 3 is located at the upstream end of the second valve port 4, the third valve port 2 is communicated with the inlet end of the passenger cabin heating pipeline 22, the fourth valve port 5 is communicated with the outlet end of the passenger cabin heating pipeline 22, the outlet end of the passenger cabin heating pipeline 22 is communicated with the inlet end of the battery heat exchange pipeline 23, and the fifth valve port 6 is communicated with the outlet end of the battery heat exchange pipeline 23.

[0056] The engine and the battery system can be coupled through the electromagnetic valve 60, the passenger cabin and the battery system share the same PTC heater 221, different proportional adjustments can be realized through the switching of the electromagnetic valve 60, the heating requirements of the passenger cabin and the battery system can be met, the waste heat of the engine can be effectively utilized, and the energy saving of the whole vehicle can be realized.

[0057] The electromagnetic valve 60 can be selectively connected between the first valve port 3, the second valve port 4, the third valve port 2, the fourth valve port 5, and the fifth valve port 6. The specific working principle and the way of adjusting the proportion of engine circulation, warm air circulation, and battery heating demand energy are as follows:

[0058] When the first valve port 3 is connected with the third valve port 2, and the fourth valve port 5 is connected with the second valve port 4, the engine waste heat and the PTC heater 221 can be used to heat the passenger compartment at the same time.

[0059] When the first valve port 3 is connected with the third valve port 2, the fourth valve port 5 is connected with the second valve port 4, and the fifth valve port 6 is connected with the second valve port 4, the engine waste heat and the PTC heater 221 can be used to heat the passenger compartment at the same time, and the flow of the fourth valve port 5 and the fifth valve port 6 can be adjusted to flexibly adjust according to the battery system and the passenger needs.

[0060] When the first valve port 3 is connected with the third valve port 2, and the fifth valve port 6 is connected with the second valve port 4, the engine waste heat and the PTC heater 221 can be used to heat the battery system at the same time.

[0061] When the first valve port 3 is connected with the second valve port 4, and the third valve port 2 is connected with the fourth valve port 5, the PTC heater 221 can be used to heat the warm air alone.

[0062] When the first valve port 3 is connected with the second valve port 4, the third valve port 2 is connected with the fourth valve port 5, and the fifth valve port 6 is connected with the third valve port 2, the PTC heater 221 can be used to heat the passenger compartment and the battery system at the same time.

[0063] When the first valve port 3 is connected with the second valve port 4, and the fifth valve port 6 is connected with the third valve port 2, the PTC heater 221 can be used to heat the battery system alone.

[0064] The PTC heater is a device that uses PTC (Positive Temperature Coefficient) material to generate heat. When an electric current passes through the PTC material, it generates heat. However, as the temperature rises, the resistance of the material increases, limiting further heat generation, forming a self-regulating heating system.

[0065] The PTC heater has the following characteristics:

[0066] 1. High safety: PTC material has self-regulating characteristics, which can avoid safety problems caused by overheating.

[0067] 2. Energy saving and environmental protection: PTC heater can automatically adjust power according to temperature demand, reducing energy waste.

[0068] 3. Uniform heating: The heating elements of the PTC heater are evenly distributed, which can achieve uniform heating effect.

[0069] An EGR device is a device used to reduce the emission of nitrogen oxides (NOx) from internal combustion engines. EGR stands for Exhaust Gas Recirculation. It works by recirculating a portion of the exhaust gas back into the engine's combustion chamber, reducing the combustion temperature and thus reducing the production of NOx.

[0070] An EGR device typically consists of an EGR valve, an EGR cooler, an EGR controller, and other components. When the engine is running, the EGR controller monitors the engine's operating conditions and opens the EGR valve to send a certain proportion of exhaust gas into the combustion chamber as needed. The inert gases in the exhaust gas will dilute the air-fuel mixture entering the combustion chamber, reducing the combustion temperature and pressure and reducing the production of NOx.

[0071] EGR devices are widely used in modern vehicles and are an effective technology for reducing exhaust emissions. Not only can it reduce the emission of NOx, but it can also improve the engine's combustion efficiency, reduce fuel consumption, and help reduce engine wear and extend its service life.

[0072] A condenser is a device used to condense gas or vapor into liquid. It is usually composed of pipes and heat exchangers, which allow hot gas or vapor to pass through the pipes inside the condenser, releasing heat and cooling, and eventually forming a liquid.

[0073] Condensers are commonly used in condensation processes and are used in air conditioning and refrigeration equipment to cool hot gas into liquid to achieve cyclic refrigeration.

[0074] The working principle of a condenser is to use a cooling medium or cooling water to cool the hot gas or vapor below its saturation temperature, causing it to condense into a liquid. Common types of condensers include air condensers, water condensers, and cooling towers, etc.

[0075] A DCDC converter is a power converter that converts one DC voltage to another DC voltage. It usually contains an input terminal and an output terminal, and through the internal circuit, it converts the input DC voltage to the required output voltage. DCDC converters are commonly used in electronic devices such as mobile phones, computers, communication devices, etc., to provide the required power voltage and current.

[0076] There are many types of DCDC converters, including step-down, step-up, and step-up-down types. Step-down DCDC converters are used to reduce the input voltage to the required output voltage, while step-up DCDC converters are used to increase the input voltage to the required output voltage. Step-up-down DCDC converters can achieve both step-up and step-down conversion of the input voltage.

[0077] DCDC converters have high efficiency, stability and reliability, which can effectively meet the needs of different devices for power supply. It plays an important role in electronic devices, helping devices run normally and providing the required power supply.

[0078] Water-to-water heat exchangers work by heat conduction, using the temperature difference between two liquids to transfer heat. Hot water enters the heat exchanger from one waterway, exchanges heat with cold water through the heat transfer surface, and makes the cold water warm up and the hot water cool down, thereby achieving heat transfer.

[0079] The advantages of water-to-water heat exchangers include high heat transfer efficiency, energy saving and environmental protection, simple structure, long service life, etc. It can help enterprises reduce energy consumption, improve production efficiency and save production cost, and is a very important heat transfer device.

[0080] Hybrid cars are a combination of traditional internal combustion engines and electric power systems. It can automatically switch between using internal combustion engines and electric motors to drive the vehicle under different driving conditions, achieving higher fuel efficiency and reducing emissions.

[0081] Hybrid cars are usually equipped with an internal combustion engine and an electric motor, the internal combustion engine is usually a gasoline or diesel engine, and the electric motor is powered by a battery. When driving at low speed or starting, the electric motor will provide power, while driving at high speed or requiring more power output, the internal combustion engine will start and assist the electric motor.

[0082] The advantages of hybrid cars include higher fuel efficiency, reduced exhaust emissions, lower carbon emissions, and smoother driving experience. In addition, since the electric motor can recover braking energy and charge the battery, hybrid cars can also help reduce energy waste.

[0083] The development trend of hybrid cars is to continuously improve fuel efficiency, increase electric driving range, reduce emissions, and gradually transition to electric cars.

[0084] The warm air core is an important part of the vehicle's warm air system, usually located in the warm air box. It is responsible for heating the air entering the vehicle to achieve a suitable temperature, providing a comfortable driving environment for passengers.

[0085] The warm air core is usually composed of copper pipes and aluminum sheets, which circulate through the coolant in the warm air system to achieve heating. When the engine is working, the warm air core will absorb the heat emitted by the engine and transfer it to the air entering the vehicle. By controlling the valves and fans in the warm air system, the working temperature and air volume of the warm air core can be adjusted to control the temperature in the vehicle.

[0086] The warm air core provides a warm in-vehicle environment in winter, allowing the driver and passengers to feel comfortable and warm in cold weather. At the same time, the warm air core is also beneficial to remove moisture and mold smell in the air inside the vehicle, keeping the air inside the vehicle fresh.

[0087] The warm air core is the core component of the vehicle heating system, providing a comfortable driving environment for the vehicle.

[0088] For ease of description, spatial relative terms such as "over", "above", "upper surface", "upper", etc. can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device as described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0089] In addition to the above, it should also be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in the specification refer to specific features, structures or characteristics described in conjunction with the embodiment, which are included in at least one embodiment described in the general description of the application. The same expression appears in several places in the specification does not necessarily refer to the same embodiment. Further, when a specific feature, structure or characteristic is described in conjunction with any embodiment, it is claimed that the implementation of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the application.

[0090] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0091] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A thermal management system, characterized by, Comprise: A power battery thermal cycle loop (10); An engine thermal cycle loop (20), the engine thermal cycle loop (20) comprising a main pipe (21), a passenger cabin warm air pipe (22) and a battery heat exchange pipe (23), the main pipe (21) is used for guiding the engine waste water out of the engine or re-into the engine, the passenger cabin warm air pipe (22) is used for conveying warm air to the passenger cabin, and the battery heat exchange pipe (23) is used for conveying heat to the power battery thermal cycle loop (10); A solenoid valve (60) having a first valve port (3), a second valve port (4), a third valve port (2), a fourth valve port (5) and a fifth valve port (6), the first valve port (3) is communicated with the main pipe (21), the second valve port (4) is communicated with the main pipe (21), the first valve port (3) is located at the upstream end of the second valve port (4), the third valve port (2) is communicated with the inlet end of the passenger cabin warm air pipe (22), the fourth valve port (5) is communicated with the outlet end of the passenger cabin warm air pipe (22), the outlet end of the passenger cabin warm air pipe (22) is communicated with the inlet end of the battery heat exchange pipe (23), and the fifth valve port (6) is communicated with the outlet end of the battery heat exchange pipe (23).

2. The thermal management system of claim 1, wherein, The passenger cabin warm air pipe (22) is provided with a PTC heater (221) and a warm air core (222), the PTC heater (221) is located at the upstream end of the warm air core (222), the outlet end of the passenger cabin warm air pipe (22) is communicated with the inlet end of the battery heat exchange pipe (23), and the warm air core (222) is located between the PTC heater (221) and the first connection point, and the warm air core (222) is used for guiding the heat in the passenger cabin warm air pipe (22) out of the passenger cabin.

3. The thermal management system of claim 2, wherein, The passenger cabin warm air pipe (22) is provided with a PTC heater (221) and a warm air core (222), the PTC heater (221) is located at the upstream end of the warm air core (222), the outlet end of the passenger cabin warm air pipe (22) is communicated with the inlet end of the battery heat exchange pipe (23), and the warm air core (222) is located between the fourth valve port (5) and the first connection point, and the warm air core (222) is used for guiding the heat in the passenger cabin warm air pipe (22) out of the passenger cabin.

4. The thermal management system of claim 1, wherein, The battery heat exchange pipe (23) is provided with a water-water heat exchanger (231), the power battery thermal cycle loop (10) is provided with a power battery, and the power battery thermal cycle loop (10) exchanges heat with the battery heat exchange pipe (23) through the water-water heat exchanger (231) to perform heating work on the power battery.

5. The thermal management system of claim 1, wherein, An EGR device (211) is arranged on one end of the main pipe (21) close to the cooling liquid outlet of the engine, and the main pipe (21) is connected in parallel with a turbocharging loop (212).

6. The thermal management system of claim 1, wherein, The heat pipe system further comprises a motor circulation loop (30) provided with a low-temperature radiator (31) adjacent to a condenser (32), and further provided with motor components to be cooled, the low-temperature radiator (31) being used to conduct heat of the motor components to be cooled to the condenser (32).

7. The thermal management system of claim 6, wherein, The motor components to be cooled comprise a DCDC converter (33), a rear electric drive inverter (34), a double inverter (35) and an oil cooler (36) provided in sequence on the motor circulation loop (30).

8. The thermal management system of claim 6, wherein, The heat pipe system further comprises an engine intercooling pipe (40) provided with a water-cooled intercooler (41), and a three-way valve having a sixth valve port (7), a seventh valve port (8) and an eighth valve port (9), the sixth valve port (7) and the seventh valve port (8) being oppositely arranged and both communicating with the motor circulation loop (30), the sixth valve port (7) being located at an upstream end of the seventh valve port (8), the seventh valve port (8) communicating with one end of the engine intercooling pipe (40), and the other end of the engine intercooling pipe (40) communicating with the low-temperature radiator (31).

9. The thermal management system of claim 1, wherein, The engine heat circulation loop (20) further comprises an engine cooling pipe (50) having two ends communicating with a cooling liquid inlet of the engine and a cooling liquid outlet of the engine, respectively, and provided with an engine radiator (51) used to conduct waste heat of the engine to an external atmosphere.

10. A vehicle comprising a thermal management system, characterized in that The heat management system is the heat management system according to any one of claims 1 to 9. The heat pipe system further comprises a motor circulation loop (30) provided with a low-temperature radiator (31) adjacent to a condenser (32), and further provided with motor components to be cooled, the low-temperature radiator (31) being used to conduct heat of the motor components to be cooled to the condenser (32). The motor components to be cooled comprise a DCDC converter (33), a rear electric drive inverter (34), a double inverter (35) and an oil cooler (36) provided in sequence on the motor circulation loop (30). The heat pipe system further comprises an engine intercooling pipe (40) provided with a water-cooled intercooler (41), and a three-way valve having a sixth valve port (7), a seventh valve port (8) and an eighth valve port (9), the sixth valve port (7) and the seventh valve port (8) being oppositely arranged and both communicating with the motor circulation loop (30), the sixth valve port (7) being located at an upstream end of the seventh valve port (8), the seventh valve port (8) communicating with one end of the engine intercooling pipe (40), and the other end of the engine intercooling pipe (40) communicating with the low-temperature radiator (31). The engine heat circulation loop (20) further comprises an engine cooling pipe (50) having two ends communicating with a cooling liquid inlet of the engine and a cooling liquid outlet of the engine, respectively, and provided with an engine radiator (51) used to conduct waste heat of the engine to an external atmosphere. The heat management system is the heat management system according to any one of claims 1 to 9.

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