Thermal management system and vehicle with same

Abstract

The invention relates to the field of thermal management systems, in particular to a thermal management system and a vehicle with the thermal management system. Comprising a fuel heating system and an air conditioning system. The fuel oil heating system comprises a fuel oil heating pipeline; a fuel oil heater, a warm air core body and a first water pump are arranged on the fuel oil heating pipeline; the fuel oil heating pipeline comprises a first liquid inlet pipeline, a first connecting pipeline and a first liquid return pipeline; a fuel heater and a first water pump are arranged on the first liquid inlet pipeline; a warm air core body is arranged on the first connecting pipeline; according to the heat management system disclosed by the invention, through the arrangement of the fuel heating system, a user in a cold region in winter can heat a passenger compartment and preserve heat of a battery pack in a fuel heating mode, so that the power consumption of the whole vehicle can be greatly reduced, the endurance mileage in winter is improved, and the anxiety of the user in the cold region to the endurance mileage in winter is solved; and the driver can be warmed securely in winter.

Description

Technical Field

[0001] The present invention relates to the field of thermal management systems, and more specifically, to a thermal management system and a vehicle equipped with the thermal management system. Background Art

[0002] With the increasing sales of pure electric trucks, the heating of the passenger compartment and the thermal insulation of the battery pack in cold regions need to be taken seriously, which affects the comfort and driving range of the vehicle.

[0003] OEMs' technical solutions generally use water-heated PTCs to solve this problem. The coolant is heated by a thermistor, converting electrical energy into heat energy.

[0004] It consumes 3 - 10 KWH of electricity per hour. For pure electric vehicles, when the heater is turned on for a long time in winter, the driving range of the vehicle is greatly shortened.

[0005] Some vehicle manufacturers use heat pump systems to meet the heating requirements of the passenger compartment and battery in cold winters of electric vehicles.

[0006] The heat pump system transfers external heat to the coolant and then conducts the heat to the air conditioner heater. The heating efficiency of the heat pump depends on the ambient temperature. When the ambient temperature is below 0°C, the heating capacity of the heat pump decreases significantly, and it has little advantage compared with the water-heated PTC.

[0007] Moreover, the heat pump system requires a multi-way reversing valve in its structure, which is complex to control and has a relatively high cost. This system is mainly applied to high-end passenger cars and is not easy to promote.

[0008] The existing patent 2023117363548 - Vehicle Thermal Management System, Vehicle, and Control Method of Vehicle Thermal Management System does not clearly disclose the technical content for solving the above technical problems.

[0009] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the existing vehicle thermal management system. Summary of the Invention

[0010] The object of the present invention is to provide a thermal management system that can improve the driving range of electric vehicles in cold regions.

[0011] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0012] A thermal management system, comprising a fuel heating system and an air conditioning system;

[0013] The fuel heating system includes a fuel heating pipeline; a fuel heater, a heater core, and a first water pump are provided on the fuel heating pipeline;

[0014] The fuel heating pipeline includes a first liquid inlet pipeline, a first connecting pipeline, and a first liquid return pipeline;

[0015] The first liquid inlet pipeline, the first connecting pipeline, and the first liquid return pipeline are connected in sequence;

[0016] A fuel heater and a first water pump are provided on the first liquid inlet pipeline;

[0017] A warm air core body is provided on the first connecting pipeline; the warm air core body is used in cooperation with a blower in the air conditioning system.

[0018] The thermal management system further includes a battery thermal management system; the fuel heating system is connected to the battery thermal management system through a heat exchanger.

[0019] The fuel heating pipeline further includes a second connecting pipeline, and the second connecting pipeline is connected to the battery thermal management system through a heat exchanger.

[0020] The fuel heating system further includes a three-way valve, and the first liquid inlet pipeline is respectively connected to the first connecting pipeline and the second connecting pipeline through the three-way valve; the first liquid inlet pipeline is connected to the first liquid return pipeline through the first connecting pipeline and / or the second connecting pipeline.

[0021] A liquid supplement mechanism is connected to the first liquid inlet pipeline, the liquid supplement mechanism includes an expansion tank, and the expansion tank is connected to the first liquid inlet pipeline through a liquid supplement pipeline.

[0022] The fuel heater is connected to a combustion system; the combustion system includes a fuel tank; the fuel tank is connected to the fuel heater through an oil pump; an air inlet pipe assembly and an exhaust pipe assembly are provided on the fuel heater.

[0023] The thermal management system further includes a battery thermal management system and a low-temperature cooling system; the fuel heating system is connected to the battery thermal management system through a heat exchanger.

[0024] The fuel heating system is connected to the vehicle frame longitudinal beam through a mounting bracket assembly; the mounting bracket assembly includes a general assembly bracket; a lateral bracket is provided on the general assembly bracket, and the fuel tank in the fuel heating system is connected to the vehicle body longitudinal beam through the general assembly bracket; the fuel heater in the fuel heating system is connected to the assembly bracket through the lateral bracket.

[0025] The air inlet pipe assembly in the fuel heating system is installed on the fuel heater through a connecting bracket; the general assembly bracket includes two support brackets distributed at intervals.

[0026] A vehicle includes the thermal management system described above.

[0027] The advantages of the present invention are:

[0028] The present invention discloses a thermal management system and a vehicle having the thermal management system.

[0029] By setting up a fuel heating system, the thermal management system disclosed by the present invention enables users in cold regions in winter to use the fuel heating mode to warm the passenger compartment and keep the battery pack warm, which can greatly reduce the power consumption of the whole vehicle, increase the winter cruising range, solve the anxiety of vehicle users in cold regions about the cruising range in winter, and ensure that the driver can warm up comfortably in winter. Brief Description of the Drawings

[0030] The following briefly describes the content expressed in each drawing of the specification of the present invention and the marks in the drawings:

[0031] Figure 1 It is a schematic structural diagram of the thermal management system of the present invention.

[0032] Figure 2 It is a schematic connection diagram of the fuel heater in the present invention

[0033] Figure 3 It is a layout diagram of the thermal management system of the present invention on the whole vehicle.

[0034] Figure 4 It is a schematic structural diagram when the fuel heating system of the present invention is installed on the longitudinal beam.

[0035] Figure 5 It is a layout diagram of the first view angle when the fuel heater of the present invention is installed on the longitudinal beam.

[0036] Figure 6 It is a layout diagram of the second view angle when the fuel heater of the present invention is installed on the longitudinal beam.

[0037] Figure 7 It is a layout diagram of the third view angle when the fuel heater of the present invention is installed on the longitudinal beam.

[0038] Figure 8 It is a layout diagram of the third expansion tank of the present invention on the whole vehicle.

[0039] The marks in the above drawings are all:

[0040] 1. Radiator; 2. Condenser; 3. Electric fan; 4a. Third expansion tank, 4b. First expansion tank; 4c. Expansion tank, 5a. Third water pump;, 5b. First water pump; 5c. Second water pump;, 6. Motor controller; 7. Motor; 8. Air-conditioning compressor; 9. Filling valve; 10. Pressure sensor; 11. Stop valve; 12. Electric three-way water valve; 13. Water temperature sensor; 14. Battery; 15. Water-water heat exchanger; 16. Heater core; 17. Evaporator; 18. Blower; 19. Fuel heater; 20. TXV (Thermal expansion valve). Detailed implementation manners

[0041] The following further describes in detail the specific implementation manners of the present invention by describing the optimal embodiments with reference to the accompanying drawings.

[0042] A thermal management system includes a fuel heating system 101 and an air conditioning system 104; the fuel heating system 101 includes a fuel heating pipeline; a fuel heater 19, a heater core 16 and a first water pump 5b are provided on the fuel heating pipeline; through the setting of the fuel heating system 101 in the thermal management system disclosed by the present invention, users in cold regions in winter can use the fuel heating mode to warm the passenger compartment and keep the battery pack warm, which can greatly reduce the power consumption of the whole vehicle, increase the winter cruising range, solve the anxiety of vehicle users in cold regions about the cruising range in winter, and ensure that the driver can warm up comfortably in winter.

[0043] The thermal management system disclosed by the present invention is mostly applicable to electric vehicles, and of course it can also be applicable to other vehicle models.

[0044] The fuel heating system 101 disclosed by the present invention includes a fuel heating pipeline; a fuel heater 19, a heater core 16 and a first water pump 5b are provided on the fuel heating pipeline; the fuel heating pipeline includes a first liquid inlet pipeline 1-1, a first connecting pipeline 1-3 and a first liquid return pipeline 1-2; the first liquid inlet pipeline 1-1, the first connecting pipeline 1-3 and the first liquid return pipeline 1-2 are connected in sequence; a fuel heater 19 and a first water pump 5b are provided on the first liquid inlet pipeline 1-1; a heater core 16 is provided on the first connecting pipeline 1-3; the heater core 16 is used in cooperation with a blower in the air conditioning system 104; the fuel heater 19 disclosed by the present invention can heat the coolant in the first liquid inlet pipeline by burning fuel, then enter the first connecting pipeline 1-3 to exchange heat with the heater core 16, and then be driven by the blower in the air conditioning system 104, so that the heat on the heater core 16 is blown into the passenger compartment.

[0045] Furthermore, in the present invention, the thermal management system further includes a battery thermal management system 102; the fuel heating system 101 is connected to the battery thermal management system 102 through a heat exchanger 15; based on such a setting, heat exchange between the fuel heating system 101 and the battery thermal management system 102 can be realized, so as to realize thermal management of the battery.

[0046] In the present invention, the fuel heating pipeline further includes a second connecting pipeline 1-4, and the second connecting pipeline 1-4 is connected to the battery thermal management system 102 through a heat exchanger 15; the setting of the second connecting pipeline 1-4 facilitates the connection between the fuel heating system 101 and the battery thermal management system 102; during use, the fuel heating system 101 exchanges heat with the battery thermal management system 102 through the heat exchanger 15; the heat exchanger 15 can be a water-water heat exchanger 15.

[0047] Furthermore, in the present invention, the fuel heating system 101 further includes a three-way valve 12, and the first liquid inlet pipeline 1-1 is respectively connected to the first connecting pipeline 1-3 and the second connecting pipeline 1-4 through the three-way valve 12; the first liquid inlet pipeline is connected to the first liquid return pipeline 1-2 through the first connecting pipeline 1-3 and / or the second connecting pipeline 1-4; through the setting of the three-way valve 12 in the present invention, during subsequent use, the coolant in the first liquid inlet pipeline 1-1 can enter the first connecting pipeline 1-3 and / or the second connecting pipeline 1-4 as needed; thus forming at least three working conditions.

[0048] Furthermore, in the present invention, the first liquid inlet pipeline 1-1 is connected with a liquid supplementing mechanism, and the liquid supplementing mechanism includes an expansion tank, and the expansion tank is connected to the first liquid inlet pipeline 1-1 through a liquid supplementing pipeline; based on such a setting, it facilitates the sufficiency of the coolant in the fuel heating system 101.

[0049] Furthermore, in the present invention, the fuel heater 19 is connected to a combustion system; the combustion system includes a fuel tank 23; the fuel tank 23 is connected to the fuel heater 19 through a fuel pump 22; an air inlet pipe assembly 24 and an exhaust pipe assembly 21 are provided on the fuel heater 19; based on the above combination, the air intake, exhaust and combustion operations of the fuel heater 19 can be realized, thereby realizing the heating operation of the coolant in the first liquid inlet pipeline 1-1 by the fuel heating system 101.

[0050] Furthermore, in the present invention, the thermal management system further includes a battery thermal management system 102 and a low-temperature cooling system 103; the fuel heating system 101 is connected to the battery thermal management system 102 through a heat exchanger 15; in the present invention, the battery thermal management system 102 can be used to heat the battery pack.

[0051] The low-temperature cooling system 103 can be used to cool the motor and the controller in the electric drive cooling circuit to ensure that the motor and the controller work at an appropriate temperature.

[0052] Furthermore, in the present invention, the fuel heating system 101 is connected to the vehicle frame longitudinal beam through a mounting bracket assembly 25; the setting of the mounting bracket assembly 25 facilitates the installation and connection of the fuel heating system 101 on the vehicle frame longitudinal beam.

[0053] In addition, in the present invention, the mounting bracket assembly 25 includes an overall assembly bracket 27; a lateral bracket 29 is provided on the overall assembly bracket 27, and the fuel tank 23 in the fuel heating system 101 is connected to the vehicle longitudinal beam 26 through the overall assembly bracket 27; the fuel heater 19 in the fuel heating system 101 is connected to the assembly bracket through the lateral bracket 29; the setting of the overall assembly bracket 27 plays a basic supporting role, facilitating the stable installation of the fuel tank 23 and the fuel heater 19 in the fuel heating system 101 on the vehicle body.

[0054] In addition, in the present invention, the intake pipe assembly 24 in the fuel heating system 101 is installed on the fuel heater 19 through a connecting bracket 30; such a setting can achieve the fixed installation of the intake pipe assembly 24 on the fuel heater 19; during subsequent assembly and use, it facilitates the subsequent assembly operation of the intake pipe assembly 24.

[0055] Specifically, in the present invention, the overall assembly bracket 27 includes two support brackets 28 distributed at intervals; each support bracket 28 is in an inverted L shape. In the present invention, the support bracket 28 includes a longitudinal frame and a transverse frame. The longitudinal frame is fixed on the vehicle longitudinal beam 26, and the transverse frame is connected to the vehicle longitudinal beam 26 through the longitudinal frame. Based on such a setting, it facilitates the installation and fixation of the support bracket 28 on the vehicle longitudinal beam 26.

[0056] A vehicle includes the thermal management system described above.

[0057] Specifically:

[0058] The present invention discloses a thermal management system, including a fuel heating system 101 and an air conditioning system 104; a battery thermal management system 102 and a low-temperature cooling system 103; the fuel heating system 101 is connected to the battery thermal management system 102 through a heat exchanger 15.

[0059] The thermal management system disclosed by the present invention is mainly applicable to pure electric trucks, and a pure electric truck is equipped with the thermal management system disclosed by the present invention.

[0060] In winter in cold regions, users can use the fuel heating system 101 to heat the passenger compartment and keep the battery pack warm. This solution greatly reduces the overall vehicle power consumption, increases the winter cruising range, solves the anxiety of northern users about the cruising range in winter, and ensures that the driver can warm up comfortably in winter.

[0061] The fuel heating system 101 of the present invention consumes 0.5 - 0.7 L / h of diesel and can extend the winter cruising range of the electric truck by about 150 km; the layout scheme makes full use of the space around the cab and cargo compartment of the pure electric truck, realizing the matching layout of the fuel heating system 101 and the pure electric platform.

[0062] This solution can be engineered, which promotes the application of electric trucks in cold regions and has great economic benefits.

[0063] The fuel type of the fuel heating system 101 is diesel. This system mainly includes: a diesel fuel tank 23 and a diesel transmission component; the diesel transmission component mainly includes a fuel tank 23, a fuel pump, a fuel pipe, and a fuel heater 19.

[0064] The diesel transmission component is connected to the diesel fuel tank 23 and the fuel heater 19, and is used to transfer the diesel in the diesel fuel tank 23 to the fuel heater 19; the coolant heated by the fuel heater 19 is circulated by the first water pump 5b to drive the coolant and the heat exchange component.

[0065] The coolant is divided into two branches through an adjustable electronic three-way water valve. Branch one is connected to the air-conditioning water heating circuit of the electric truck to transfer the heated coolant to the air-conditioning water heating circuit. For branch two, after the coolant exchanges heat with the heat exchange component, the water temperature is controlled within the suitable operating temperature range of the battery system, and then it flows into the internal water channel of the battery to keep the battery warm.

[0066] The coolant after completing the heat exchange is merged through the first return liquid pipeline 1-2 and then continues to return to the fuel heater 19 for the next cycle.

[0067] The air inlet of the fuel heater 19 is connected to an air filter and is longitudinally arranged.

[0068] The exhaust gas from the combustion of the heater is discharged through a muffler and a flexible exhaust pipe.

[0069] The fuel heater 19 is divided into a combustion system and a heat exchange system. The combustion system is composed of a combustion intake and exhaust system, an ignition device, a fuel atomization device, etc. The heat exchange system is composed of an inlet and outlet water pipe, a water flow channel, etc.

[0070] After the atomized diesel and air are mixed, they burn fully in the combustion chamber, and the heat is transferred to the medium in the water jacket interlayer, that is, the coolant, through the inner wall of the water jacket and the radiating fins on it.

[0071] The heated coolant circulates in the entire circulation pipeline under the action of the first water pump 5b to achieve the purpose of heating the medium.

[0072] In the present invention, the first water pump 5b is an electronic water pump.

[0073] A water temperature sensor is arranged outside the water jacket of the fuel heater 19, which can communicate with the thermal management controller, and adjust the heating power according to the requirement of the target water temperature.

[0074] The thermal management solution with the fuel heating system 101 can achieve the purpose of heating the passenger compartment and keeping the battery warm in winter while meeting the power performance of the entire electric vehicle. Specific embodiments:

[0076] As shown in the Figure 1 accompanying drawings, in the present invention, the fuel heating system 101 mainly consists of an expansion tank, a first water pump 5b, a three-way water valve, a heater core 16, water pipes, a fuel heater 19, a fuel tank 23, an oil pump, oil pipes, an intake pipe assembly 24 (integrated with an air filter), an exhaust pipe, etc.

[0077] Coolant is filled at the first expansion tank 4b, and the first water pump 5b drives the coolant to circulate in the air-conditioning heating circuit and the battery heating circuit.

[0078] As shown in the Figure 2 accompanying drawings, the oil pump sucks diesel from the fuel tank 23, transfers it to the fuel heater 19 through the oil pipe. After the diesel is atomized and mixed with air, it burns, and the released heat heats the coolant. The fuel heater 19 sucks fresh air filtered by the air filter from the intake pipe, burns it with the atomized diesel, and the combustion exhaust gas is discharged into the atmosphere through the exhaust pipe.

[0079] The fuel heater 19 controls the actual outlet water temperature according to the target outlet water temperature sent by the TMS (a water temperature sensor is arranged outside the water jacket of the fuel heater 19).

[0080] According to the requirement of the target water temperature, the heater will be adjusted to the following levels: 5th gear - 4th gear - 3rd gear - 2nd gear - 2nd gear - 1st gear.

[0081] When the heater receives the requirement of the target temperature T, it first reaches T - 5°C at the 5th gear power, and then reduces the power successively until the heating power and the required power reach balance and stability. If the balance is not achieved, when the temperature rises to T + 5°C, the heater operates at the minimum power gear until the balance is reached.

[0082] Then it operates at a lower power to maintain the target water temperature.

[0083] The air-conditioning system 104 provides heating mainly by heating the surrounding air through the heater core 16, and then the blower blows the heated air into the passenger compartment for passenger heating; the battery heating circuit consists of a second expansion tank, a second water pump, a battery pack water channel, a water-to-water heat exchanger 15 and pipelines.

[0084] Water is replenished to the second expansion tank before the second water pump. The coolant is driven by the second water pump, flows to the battery pack water channel and the water-to-water heat exchanger 15, and then returns to the second water pump to complete a cycle.

[0085] The purpose of using the water-to-water heat exchanger 15 is to cool down the high-temperature coolant (the temperature can reach 90°C) heated by the fuel heater 19 to the water temperature suitable for the battery system (26°C - 50°C).

[0086] Working mode 1: When heating the single-occupant cabin, the electronic three-way water valve receives a control signal and is in the state of A-C conduction.

[0087] The TMS (Thermal Management Control System) sends the target outlet water temperature to the fuel heater 19 according to the temperature setting of the air-conditioning control panel, and at the same time controls the operating speed of the electronic water pump; the fuel heater 19 controls the actual outlet water temperature according to the target outlet water temperature sent by the TMS.

[0088] The implementation path is as follows: The first expansion tank 4b replenishes water before the first water pump 5b. The coolant is heated by the fuel heater 19, continues to flow through the A-C circuit of the electronic three-way water valve, and flows to the water channel of the heater core 16 to heat the air.

[0089] The blower evenly blows the heated air into the occupant cabin for passengers' heating.

[0090] Working mode 2: When heating the single battery, the electronic three-way valve 12 is in the state of A-B conduction; the TMS sends the target outlet water temperature to the fuel heater 19 according to the target inlet water temperature of the battery circuit and the actual inlet water temperature of the battery pack, and at the same time controls the operating speeds of the first water pump 5b of the fuel heating system 101 and the second water pump of the battery heating system; the fuel heater 19 controls the actual outlet water temperature according to the target outlet water temperature sent by the TMS.

[0091] The implementation path is as follows: The fuel heater 19 heats the coolant. The first water pump 5b drives the coolant to the A-B passage of the three-way electronic water valve. The coolant flows to the water-water heat exchanger 15, and through heat exchange in the water-water heat exchanger 15, the heat is conducted from the high-temperature coolant to the low-temperature coolant, and then continues to flow to the water pump of the fuel heating system 101; the coolant of the battery heating system is driven by the second electronic water pump and circulates in the water channel of the battery pack, conducts heat to the battery core, and after heat exchange, the temperature of the coolant decreases and then continues to flow to the water-water heat exchanger 15 for the next cycle.

[0092] Working mode 3: When heating the battery and the occupant cabin at the same time, the electronic three-way valve 12 is in the intermediate proportional adjustment state, and A-B and A-C are conducting. After comprehensively judging according to the temperature setting of the occupant cabin air-conditioning control panel and the target inlet water temperature of the battery circuit, the actual opening position of the electronic three-way water valve is adjusted; after comprehensively judging according to the temperature setting of the occupant cabin air-conditioning control panel and the target inlet water temperature of the battery circuit, the TMS sends the target outlet water temperature to the fuel heater 19, and at the same time controls the operating speeds of the first water pump 5b (5b) and the second water pump (5c) of the heating circuit; the fuel heater 19 controls the actual outlet water temperature according to the target outlet water temperature sent by the TMS.

[0093] The implementation path is as follows: after the coolant is heated by the fuel heater 19, it flows to the electronic three-way water valve. At this time, the state of the electronic three-way valve 12 is intermediate proportional adjustment, A-B and A-C are turned on, and the coolant flows to the water channel of the heater core 16 and the water-to-water heat exchanger 15 respectively. After the heat exchange is completed, the low-temperature coolant passes through the three-way pipe, is collected and then continues to be pumped to the fuel heater 19 by the electronic water pump; the heat of the water channel of the heater core 16 is transferred to the surrounding air, and the blower blows the heated air to the passenger compartment to complete the heating of the passengers; the low-temperature coolant circulating in the water-to-water heat exchanger 15 obtains the heat of the high-temperature coolant, and the coolant continues to be driven by the electronic water pump to the water channel of the battery pack, and then the heated coolant transfers the heat to the battery core, and then the battery core completes the heating.

[0094] The electric drive cooling circuit cools the motor and controller to ensure that the motor and controller operate at an appropriate temperature.

[0095] The circuit is composed of a radiator, a cooling fan, a third expansion tank, a third water pump, a controller, and motor water channels and pipelines.

[0096] When the vehicle is running, the internal temperature of the motor controller and the motor increases after they start working, and coolant is needed to cool them down.

[0097] The third water pump drives the coolant to flow through the motor controller and the motor and then enter the radiator.

[0098] The radiator transfers the heat of the coolant to the surrounding environment, and the electronic fan accelerates the circulation of air and the heat exchange of the coolant.

[0099] The low-temperature coolant continues to return to the third water pump for circulation.

[0100] The battery is cooled by air. The air conditioning refrigeration cycle is not described in detail in this article.

[0101] As attached Figure 5 As shown, the fuel heater 19 and the fuel tank 23 are fixed to the right side of the vehicle longitudinal beam through a mounting bracket assembly 25 and connected to the longitudinal beam through two assembly brackets 27.

[0102] The two assembly brackets 27 are fixed to the inner side of the longitudinal beam by bolts, and each of them has two long convex welded studs extending out of the longitudinal beam, and after being fixed to the assembly bracket 27, the nuts are tightened to complete the fixing of the assembly bracket 27;

[0103] As attached Figures 3 - 8 As shown, the fuel tank 23 assembly is fixed to the assembly bracket 27 by four fastening bolts; four convex welding studs are provided on one side of the fuel heater 19, and threads are arranged inside. By arranging rubber cushions and steel bushings, the lateral bracket 29 welded to the assembly bracket 27 is fastened with four fastening bolts, and then four nuts are tightened respectively, and the fuel heater 19 is fixed.

[0104] As shown in the attachment Figure 6 As shown, two projection welding studs are provided on one side of the fuel heater 19 assembly, with internal threads. The connecting bracket 30 is fastened to the fuel heater 19 using bolts and nuts.

[0105] The connecting bracket 30 is provided with four mounting holes, and the intake pipe assembly 24 (integrated with a rain cap and an air filter) and the first water pump 5b are respectively fastened using bolts and nuts.

[0106] As shown in the attachment Figure 7 As shown, after the first expansion tank 4b and the expansion tank bracket 33 are assembled, they are then fixed using bolts and nuts; then the assembled first expansion tank 4b and the bracket 33 are assembled onto the fast charging interface assembly bracket 32 and fixed using bolts and nuts.

[0107] This bracket is also fixed to the rear mounting plate 31 of the vehicle body suspension using bolts and nuts.

[0108] The first expansion tank 4b is arranged in the space between the cab and the cargo compartment, and it is ensured that the first expansion tank 4b is located at the highest point of the entire fuel heating system 101, which is convenient for filling and degassing, and the scale line is convenient for observation.

[0109] The intake of the fuel heater 19 needs to be provided with a rain cap to prevent rainwater from entering the fuel heater 19, causing the filter element of the air filter to fail, insufficient intake and black smoke, and on the other hand, inhaling rainwater, resulting in the fuel heater 19 being unable to ignite.

[0110] As shown in the attachment Figure 8 As shown, the electronic three-way water valve is fixed to the lower plane of the second longitudinal beam of the frame through a bracket, and the water-water heat exchanger 15 is also fixed to a position adjacent to the lower plane of the second longitudinal beam of the frame through a bracket. The heated coolant flows into two systems through the battery heating water pipe and the air-conditioning heating water pipe respectively via the electronic three-way water valve.

[0111] The coolant after heat exchange returns to the fuel heating system 101 after converging through a hard pipe provided with a three-way pipe.

[0112] Other connecting pipes are respectively provided with hard pipes and hoses according to the positions of the fixing points on the frame to connect various components.

[0113] Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various non-substantive improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A thermal management system, characterized in that: Including fuel heating system and air conditioning system; The fuel heating system comprises a fuel heating pipeline; the fuel heating pipeline is provided with a fuel heater, a heater core and a first water pump; The fuel heating pipeline includes a first liquid inlet pipeline, a first connecting pipeline and a first liquid return pipeline; The first liquid inlet pipe, the first connecting pipe and the first liquid return pipe are connected in sequence; The first liquid inlet pipeline is provided with a fuel heater and a first water pump; The first connecting pipe is provided with a warm air core; the warm air core is used in conjunction with a blower in the air conditioning system.

2. A thermal management system according to claim 1, characterized in that: The thermal management system also includes a battery thermal management system; the fuel heating system is connected to the battery thermal management system via a heat exchanger.

3. A thermal management system according to claim 2, characterized in that: The fuel heating pipeline also includes a second connecting pipeline, and the second connecting pipeline is connected to the battery thermal management system through a heat exchanger.

4. A thermal management system according to claim 3, characterized in that: The fuel heating system also includes a three-way valve, the first liquid inlet pipeline is connected to the first connecting pipeline and the second connecting pipeline respectively through the three-way valve; the first liquid inlet pipeline is connected to the first liquid return pipeline through the first connecting pipeline and / or the second connecting pipeline.

5. A thermal management system according to claim 3, characterized in that: The first liquid inlet pipeline is connected to a liquid replenishing mechanism, and the liquid replenishing mechanism includes an expansion tank, and the expansion tank is connected to the first liquid inlet pipeline through the liquid replenishing pipeline.

6. A thermal management system according to claim 3, characterized in that: The fuel heater is connected to a combustion system; the combustion system comprises a fuel tank; the fuel tank is connected to the fuel heater via an oil pump; The fuel heater is provided with an air intake pipe assembly and an exhaust pipe assembly.

7. A thermal management system according to claim 3, characterized in that: The thermal management system also includes a battery thermal management system and a low-temperature cooling system; the fuel heating system is connected to the battery thermal management system via a heat exchanger.

8. A thermal management system according to claim 1, characterized in that: The fuel heating system is connected to the frame longitudinal beam through the mounting bracket assembly; the mounting bracket assembly includes an assembly bracket; a lateral bracket is provided on the assembly bracket, and the fuel tank in the fuel heating system is connected to the vehicle body longitudinal beam through the assembly bracket; the fuel heater in the fuel heating system is connected to the assembly bracket through the lateral bracket.

9. A thermal management system according to claim 8, characterized in that: In the fuel heating system, the air intake pipe assembly is installed on the fuel heater via a connecting bracket; the assembly bracket includes two support brackets distributed at intervals.

10. A vehicle, characterized in that: Comprising a thermal management system as claimed in any one of claims 1 to 9.

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