A strong heat dissipation type vehicle-mounted intelligent power unit

Abstract

The present invention provides a strong heat dissipation type vehicle-mounted intelligent power unit, which relates to the technical field of engine power units, including a power unit compartment, a cooling unit integrated body and a dual high-pressure fan assembly. An engine, a generator and electrical components are installed inside the power unit compartment, and an air filter component is installed at the top air inlet of the power unit compartment. The dual high-pressure fan assembly is combined with a unique heat dissipation system design, including a reasonable layout of an intercooler, a water radiator and a generator radiator, and precise control of the temperature of the cooling medium, which significantly improves the heat dissipation efficiency, ensures that the power unit can maintain a suitable operating temperature under various working conditions, and effectively prolongs the service life and stability of the equipment. The engine radiator and the water radiator are arranged in a split manner, combined with the precise temperature control strategy of the intercooler of the dual high-pressure fan assembly and the high-pressure fan at the front end of the generator radiator. When the coolant outlet temperature of the engine radiator reaches a set value, the fan is turned on to enhance heat dissipation.

Description

Technical Field

[0001] The present invention belongs to the technical field of engine power units, and more specifically, particularly relates to a strong heat dissipation type vehicle-mounted intelligent power unit. Background Art

[0002] In the existing field of vehicle-mounted power unit technology, there are a series of significant problems that need to be solved urgently.

[0003] First, in terms of heat dissipation, the heat dissipation system design of traditional power units is not reasonable and efficient enough. The flow of cooling medium and heat dissipation lacks a precise control mechanism, and cannot be accurately adjusted according to the real-time temperature of different components. This makes the power unit prone to overheating under high temperature conditions, which not only reduces the performance and reliability of the equipment, but also greatly shortens its service life. At the same time, the layout of the radiator is not optimized, and the synergy between the radiators is not obvious, resulting in poor heat dissipation, which makes it difficult to meet the heat dissipation requirements of high power output and long-term operation.

[0004] Secondly, there are great limitations in the installation method. The traditional installation structure is fixed and single, and cannot be flexibly adjusted according to the actual installation environment and space, and it is difficult to adapt to the diverse vehicle structures and installation location requirements. This not only increases the difficulty and complexity of installation, but may also lead to the inability to achieve the ideal installation effect on some special vehicles, affecting the normal operation and performance of the power unit.

[0005] Furthermore, the convenience of maintenance and overhaul is seriously insufficient. The existing structural design is complex, and the connection and layout between components are not reasonable, which makes the operation space small, disassembly and installation difficult during equipment maintenance and troubleshooting, and consumes a lot of time and labor costs. Moreover, due to the lack of convenient inspection ports and easy-to-disassemble structures, some potential faults are difficult to be discovered and handled in time, increasing the downtime of equipment and the risk of maintenance.

[0006] In addition, the stability and vibration reduction effect of the transmission system are not good. The connection between the engine and the generator is not optimized enough. During the power transmission process, vibration and impact cannot be effectively absorbed and buffered, resulting in unstable transmission, which not only generates loud noise, but also easily causes fatigue damage to components, affecting the reliability and durability of the entire power unit.

[0007] Finally, in terms of integration and lightweight, the structure of the traditional vehicle-mounted power unit is relatively loose and bulky, the integration between the components is low, and the space occupied is large, which increases the load of the vehicle and reduces the energy efficiency and range of the vehicle. At the same time, the airflow guidance design is not scientific enough, and it cannot effectively reduce the loss and turbulence of the airflow, resulting in low heat dissipation efficiency, and the noise generated during the airflow flow is large, affecting the running comfort and environmental friendliness of the vehicle.

[0008] In summary, there are many technical problems in the existing vehicle power units in terms of heat dissipation, installation, maintenance, transmission, integration, and lightweight design, which seriously restrict their performance and application scope. There is an urgent need for a new and optimized design solution to solve these problems. Therefore, a strong heat dissipation type vehicle-mounted intelligent power unit is proposed herein. Summary of the Invention

[0009] To solve the above technical problems, the present invention provides a strong heat dissipation type vehicle-mounted intelligent power unit to solve the above problems.

[0010] A strong heat dissipation type vehicle-mounted intelligent power unit includes a power unit compartment, a cooling unit assembly, and a double high-pressure fan assembly. An engine, a generator, and electrical components are installed inside the power unit compartment. An air filter device is installed at the air intake at the top of the power unit compartment. A diversion assembly is arranged above the power unit compartment, and an installation assembly is arranged on the side of the power unit compartment. The power unit compartment includes a main frame of the compartment body and a splicing panel of the compartment body. A heat dissipation unit is installed on the top of the power unit compartment, and a compartment cooling fan is installed on the top panel of the splicing panel of the compartment body. Among them, the diversion assembly includes an installation frame, a fixing plate, a sliding cover one, and a sliding cover two. The installation assembly is composed of three identical installation brackets. The installation bracket includes a fixing frame, a movable frame, a connecting frame, and a bottom frame.

[0011] Preferably, side plates are fixed on the arc-shaped rods on both sides of the installation frame. The fixing plate is fixed at the bottom of the side plate close to the air filter device. A connecting seat with a bolt is fixed on the fixing plate. A pair of sliding grooves one and a pair of sliding grooves two are respectively opened at the upper and lower ends of the installation frame. Sliding bars one are respectively fixed at the upper and lower ends of the sliding cover one and the sliding cover two. Among them, the two sliding bars one are respectively stuck in the two sliding grooves one, and the two sliding bars two are respectively stuck in the two sliding grooves two. Connecting pieces one with screws are fixed at the separated ends of the sliding cover one and the sliding cover two. Connecting pieces two with holes are respectively fixedly connected on the arc-shaped rods on both sides of the installation frame. Two positioning rods are fixed on the side plate away from the air filter device.

[0012] Preferably, the bottom frame is fixed to the bottom of the power unit compartment by bolts. The fixing frame and the bottom frame are fixed to form an L-shaped frame. The fixing frame and the movable frame are both U-shaped frames. The movable frame is sleeved inside the fixing frame. Among them, a set of vertical positioning grooves are opened on both the movable frame and the fixing frame. A set of fixing rods are also fixed on the inner wall of the movable frame. A positioning nut is threadedly sleeved on one of the fixing rods. Adjusting screws with nuts are respectively sleeved in two of the positioning grooves.

[0013] Preferably, a square groove is opened in the middle part of the connecting frame. An inner box in the shape of a square is fixed at the notch of the square groove facing the movable frame. A circular groove is opened in the middle part of the inner box. The positioning nut is located inside the inner box. The inner box is movably stuck in the U-shaped groove body of the movable frame.

[0014] Preferably, the electrical components are composed of a preheating relay, a DC power supply, a No. 1 drive device, a No. 2 drive device, a fuel tank and an automatic transfer switch controller, the heat dissipation unit is composed of a radiator body, a water radiator, an intercooler and a generator radiator, and the dual high-pressure fan assemblies are distributed at the front end of the intercooler and the generator radiator.

[0015] Preferably, the cooling unit integrated body is installed on the upper part of the main frame of the cabin, and the cooling unit integrated body is composed of an electronic water pump, a motor controller water inlet pipe, a generator water inlet pipe, a motor controller water outlet pipe, a generator water outlet pipe, an engine air outlet pipe, a generator expansion water tank, an engine air inlet pipe, an engine expansion water tank and an engine return water pipe. The engine and the generator are connected by a Geislinger elastic coupling. A muffler and a muffler exhaust pipe are installed on the left side of the power unit cabin. One end of the muffler exhaust pipe is connected to the muffler, and the other end discharges exhaust gas to the outside of the vehicle. The muffler exhaust pipe is located on the left side of the power unit cabin.

[0016] Preferably, the electronic water pump is connected to the generator controller via the motor controller water inlet pipeline and the motor controller water outlet pipeline, and the generator is connected to the generator radiator via the generator water inlet pipeline and the generator water outlet pipeline.

[0017] Preferably, the water radiator is located between the intercooler and the generator radiator, and the three are installed side by side on the top of the power unit compartment. The intercooler is located between the engine and the air filter device and is connected to the engine through a pipeline.

[0018] Preferably, the engine exhaust pipe is led out from the engine, passes through the main frame of the cabin and extends to the left side. The generator expansion water tank is installed next to the generator and connected to the generator through a pipeline. One end of the motor controller water inlet pipe is connected to the electronic water pump, and the other end is connected to the generator controller. The oil tank is located in the power unit cabin and connected to the engine through an oil pipe. One end of the engine return water pipe is connected to the engine, and the other end is connected to the water radiator. One end of the engine intake pipe is connected to the engine, and the other end leads to the air filter device.

[0019] Preferably, the No. 1 drive device and the No. 2 drive device are installed side by side in the main frame of the cabin body, and are located on one side of the automatic transfer switch controller.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. This engine creatively adopts dual high-pressure fan components combined with a unique cooling system design, including the reasonable layout of the intercooler, water radiator and generator radiator, as well as the precise control of the cooling medium temperature, which significantly improves the heat dissipation efficiency and achieves a strong heat dissipation effect, ensuring that the power unit can maintain a suitable operating temperature under various working conditions, effectively extending the service life and stability of the equipment. The engine radiator (water radiator) adopts a split layout, combined with the precise temperature control strategy of the dual high-pressure fan components (the high-pressure fan at the front end of the intercooler and the generator radiator). When the engine radiator coolant outlet temperature reaches the set value of 78°C, the fan is turned on to enhance heat dissipation, and the fan is fully turned on at 82°C, effectively avoiding the performance degradation and failure of the engine due to overheating, extending the service life of the engine, and ensuring the stability of power output.

[0022] 2. Flexible installation and strong adaptability: The unique design of the installation components allows the movable frame to slide up and down in the fixed frame and be flexibly fixed by adjusting the screws. The connecting frame can be installed vertically or horizontally, which greatly improves the applicability and convenience of installation. It can adapt to different installation locations and space requirements, showing a high degree of flexibility and adaptability.

[0023] 3. Convenient inspection and maintenance: The sliding design of slide cover 1 and slide cover 2 in the diversion assembly can quickly form an inspection port. The entire diversion assembly is also easy to disassemble, which is convenient for inspection and maintenance of internal components, reducing maintenance costs and time and improving the maintainability of the equipment.

[0024] 4. Optimize airflow guidance and noise reduction: The closed air guide cover can not only accurately control the airflow guidance of the dual high-pressure fan components, reduce airflow loss and turbulence, and improve heat dissipation efficiency, but also reduce the noise generated by airflow and optimize the operating environment of the power unit.

[0025] 5. Stable transmission and vibration reduction: The engine and generator are connected through a Geislinger elastic coupling, which not only achieves efficient power transmission, but also effectively absorbs and buffers vibration impact, thus improving the stability and reliability of transmission.

[0026] 6. Integration and lightweight: The entire power unit is compact, integrated and lightweight in structural design, reducing the load on the vehicle and meeting the requirements of modern vehicles for high performance and low weight.

[0027] 7. The design of the liquid cooling circuit enables the cooling medium to reasonably distribute the flow rate and heat dissipation power according to the thermal resistance and flow resistance, and can quickly remove the heat generated by the components during operation. At the same time, when the dual high-pressure fan assembly at the front end of the generator radiator is turned on at 40°C and fully opened at 55°C, the speed of the cabin cooling fan increases as the temperature rises, effectively reducing energy consumption, optimizing the energy utilization efficiency of the engine, and improving the cruising range. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a front schematic diagram of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure when the diversion assembly of the present invention is opened;

[0031] Figure 4 It is a schematic diagram of the back structure of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure after the guide assembly of the present invention is removed;

[0033] Figure 6 It is a schematic diagram of the split structure of the installation component in the present invention;

[0034] Figure 7 It is a cutaway schematic diagram of the movable frame in the present invention;

[0035] Figure 8 is a schematic cross-sectional view of the connecting frame of the present invention;

[0036] Fig. 9 It is a structural schematic diagram when the movable frame of the present invention is at the highest point;

[0037] Fig.10 It is a schematic diagram of the structure when the movable frame is at the highest point and the connecting frame is installed horizontally in the present invention;

[0038] Fig.11 It is a structural schematic diagram when the movable frame of the present invention is at the lowest point;

[0039] Fig.12 It is a structural schematic diagram of the present invention when the movable frame is at the lowest point and the connecting frame is installed horizontally;

[0040] Fig.13 It is a structural schematic diagram of the flow guide assembly in the present invention;

[0041] Fig.14 It is a structural schematic diagram of the positioning rod in the present invention;

[0042] Fig.15 The present invention Fig.13 A schematic diagram of the enlarged structure at A in the middle;

[0043] Fig.16 The present invention Fig.13 A schematic diagram of the enlarged structure at B in the middle;

[0044] Fig.17 The present invention Fig.13 Schematic diagram of the enlarged structure at C in the middle;

[0045] Fig.18 The present invention Fig.13 Schematic diagram of the enlarged structure at D in the middle;

[0046] Fig.19 The present invention Fig.13 Schematic diagram of the enlarged structure at E in the middle;

[0047] Fig. 20 It is a schematic structural diagram of the cooling unit assembly in the present invention;

[0048] Fig.21 It is a schematic diagram of the principle of heat dissipation by dual high-pressure fans in the present invention.

[0049] In the figure, the corresponding relationship between the structural names and the reference numerals is as follows: 1. Silence exhaust duct; 2. Cooling unit assembly; 3. Air filter device; 4. Cabin cooling fan; 5. Cabin main frame; 6. Cabin splicing panel; 7. Muffler; 8. Generator; 9. Preheating relay; 10. Generator controller; 11. Automatic transfer switch controller; 12. No. 1 drive device; 13. No. 2 drive device; 14. DC power supply; 15. Fuel tank; 16. Electronic water pump; 17. Motor controller water inlet pipeline; 18. Generator water inlet pipeline; 19. Motor controller water outlet pipeline; 20. Generator water outlet pipeline; 21. Engine exhaust pipeline; 22. Radiator body; 23. Intercooler; 24. Generator radiator; 25. Generator expansion tank; 26. Engine air intake line; 27. Engine expansion tank; 28. Water radiator; 29. ​​Engine water return line; 30. Engine; 31. Dual high-pressure fan assembly; 32. Card strip; 33. Mounting frame; 34. Limit seat; 35. Connecting frame; 36. Support frame; 37. Slide cover 1; 38. Slide cover 2; 39. Connecting piece 1; 40. Side plate; 41. Fixed plate; 42. Connecting seat; 43. Slide groove 2; 44. Slide groove 1; 45. Slide bar 1; 46. Slide bar 2; 47. Positioning rod; 48. Square groove; 49. Positioning nut; 50. Movable frame; 51. Fixed frame; 52. Base frame; 53. Adjusting screw; 54. Fixed rod; 55. Positioning groove; 57. Inner box; 58. Round groove; 59. Connecting piece 2; 60. Base groove. DETAILED DESCRIPTION

[0050] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0051] See also Figure 1-Figure 21, the present invention provides a strongly heat-dissipating in-vehicle intelligent power unit, which includes a power unit compartment, a cooling unit assembly 2, and a dual high-pressure fan assembly 31. An engine 30, a generator 8, and electrical components are installed inside the power unit compartment. During driving, the engine 30 operates to generate power. An air filtering device 3 is installed at the air intake at the top of the power unit compartment. The air first passes through the air filtering device 3 installed at the air intake at the top of the power unit compartment to remove impurities. A diversion assembly is arranged above the power unit compartment, and an installation assembly is arranged on the side of the power unit compartment. The power unit compartment includes a main frame 5 of the compartment body and a splicing panel 6 of the compartment body. A heat dissipation unit is installed at the top of the power unit compartment, and a compartment heat dissipation fan 4 is installed on the top panel of the splicing panel 6 of the compartment body. Among them, the diversion assembly includes an installation frame 33, a fixing plate 41, a sliding cover 1 37, and a sliding cover 2 38. The installation assembly is composed of three identical installation brackets. The installation bracket includes a fixing frame 51, a movable frame 50, a connecting frame 35, and a bottom frame 52.

[0052] Side plates 40 are fixed on the arc-shaped rods on both sides of the installation frame 33. The fixing plate 41 is fixed at the bottom of the side plate 40 on the side close to the air filtering device 3. A connecting seat 42 with a bolt is fixed on the fixing plate 41. A pair of sliding grooves 1 44 and a pair of sliding grooves 2 43 are respectively opened at the upper and lower ends of the installation frame 33. Sliding bars 1 45 and sliding bars 2 46 are respectively fixed at the upper and lower ends of the sliding cover 1 37 and the sliding cover 2 38. Among them, the two sliding bars 1 45 are respectively stuck in the two sliding grooves 1 44, and the two sliding bars 2 46 are respectively stuck in the two sliding grooves 2 43. Connecting pieces 1 39 with screws are fixed at the separated ends of the sliding cover 1 37 and the sliding cover 2 38. Connecting pieces 2 59 with holes are fixedly connected on the arc-shaped rods on both sides of the installation frame 33. Two positioning rods 47 are fixed on the side plate 40 on the side away from the air filtering device 3.

[0053] The bottom frame 52 is fixed to the bottom of the power unit compartment by bolts. The fixing frame 51 and the bottom frame 52 are fixed to form an L-shaped frame. Both the fixing frame 51 and the movable frame 50 are U-shaped frames. The movable frame 50 is sleeved inside the fixing frame 51. Among them, a set of vertical positioning grooves 55 are opened on both the movable frame 50 and the fixing frame 51. A set of fixing rods 54 are also fixed on the inner wall of the movable frame 50. A positioning nut 49 is threadedly sleeved on one of the fixing rods 54. Adjusting screws 53 with nuts are sleeved in two of the positioning grooves 55.

[0054] A square groove 48 is opened in the middle part of the connecting frame 35. An inner box 57 in the shape of a square is fixed at the notch of the square groove 48 facing the movable frame 50. A circular groove 58 is opened in the middle part of the inner box 57. The positioning nut 49 is located inside the inner box 57. The inner box 57 is movably stuck in the U-shaped groove body of the movable frame 50.

[0055] The electrical components consist of a preheating relay 9, a DC power supply 14, a No. 1 drive device 12, a No. 2 drive device 13, a fuel tank 15 and an automatic transfer switch controller 11. The heat dissipation unit consists of a radiator body 22, a water radiator 28, an intercooler 23 and a generator radiator 24. The dual high-pressure fan assembly 31 is distributed at the front end of the intercooler 23 and the generator radiator 24.

[0056] The cooling unit integrated body 2 is installed on the upper part of the cabin main frame 5. The cooling unit integrated body 2 is composed of an electronic water pump 16, a motor controller water inlet pipeline 17, a generator water inlet pipeline 18, a motor controller water outlet pipeline 19, a generator water outlet pipeline 20, an engine air outlet pipeline 21, a generator expansion water tank 25, an engine air inlet pipeline 26, an engine expansion water tank 27 and an engine water return pipeline 29. The engine 30 is connected to the generator 8 through a Geislinger elastic coupling. This connection method not only realizes the efficient transmission of engine power to the generator 8, but also realizes the efficient transmission of engine power to the generator 8. The elastic elements inside the coupling absorb and cushion the vibration and impact of the engine 30 during operation, which plays a good role in vibration reduction. A muffler 7 and a muffler exhaust pipe 1 are installed on the left side of the power unit compartment. One end of the muffler exhaust pipe 1 is connected to the muffler 7, and the other end discharges exhaust gas to the outside of the vehicle. The muffler exhaust pipe 1 is located on the left side of the power unit compartment. The muffler 7 reduces the exhaust noise in this process. The exhaust gas generated by the operation of the engine 30 passes through the engine outlet pipe 21 and is discharged to the outside through the muffler exhaust pipe 1 located on the left side of the power unit compartment.

[0057] The electronic water pump 16 is connected to the generator controller 10 via the motor controller water inlet pipeline 17 and the motor controller water outlet pipeline 19 , and the generator 8 is connected to the generator radiator 24 via the generator water inlet pipeline 18 and the generator water outlet pipeline 20 .

[0058] The water radiator 28 is located between the intercooler 23 and the generator radiator 24, and the three are installed side by side on the top of the power unit compartment. The intercooler 23 is located between the engine 30 and the air filter device 3, and is connected to the engine 30 through a pipeline. The heat generated by the engine 30 when working is brought out by the coolant inside it, and the coolant flows back to the water radiator 28 through the engine return water pipeline 29 for heat dissipation. The cooled coolant then returns to the engine 30 through the engine return water pipeline 29 to form a cycle.

[0059] The engine outlet pipe 21 is led out from the engine 30, passes through the cabin main frame 5 and extends to the left side. The generator expansion water tank 25 is installed beside the generator 8 and communicates with the generator 8 through a pipe. The motor controller water inlet pipe 17 is connected to the electronic water pump 16 at one end and connected to the generator controller 10 at the other end. The oil tank 15 is located in the power unit cabin and connected to the engine 30 through an oil pipe. The engine return pipe 29 is connected to the engine 30 at one end and connected to the water radiator 28 at the other end. The engine air inlet pipe 26 is connected to the engine 30 at one end and leads to the air filter device 3 at the other end. The heat generated by the generator 8 when working is taken away by the cooling medium flowing in through the generator water inlet pipe 18, and then flows to the generator radiator 24 through the generator water outlet pipe 20 for heat dissipation. The electronic water pump 16 extracts the cooling medium from the water tank through the motor controller water inlet pipe 17, and transports the cooling medium to the generator controller 10 through the motor controller water outlet pipe 19 to achieve cooling.

[0060] The first drive device 12 and the second drive device 13 are installed side by side in the cabin main frame 5 and are located on one side of the automatic transfer switch controller 11 .

[0061] Working principle: During driving, the engine 30 runs to generate power. The air is first filtered by the air filter device 3 installed at the air inlet on the top of the power unit compartment to remove impurities. The filtered clean air enters the intercooler 23, and after being cooled, it is introduced into the engine 30 through the engine intake pipe 26 to participate in combustion and work. The exhaust gas generated by the operation of the engine 30 passes through the engine outlet pipe 21 and is discharged to the outside through the silencer exhaust pipe 1 located on the left side of the power unit compartment. The silencer 7 reduces the exhaust noise in this process.

[0062] The heat generated by the engine 30 when it is working is taken out by the coolant inside it, and the coolant flows back to the radiator 28 through the engine return water pipe 29 to dissipate heat. The cooled coolant then returns to the engine 30 through the engine return water pipe 29 to form a cycle.

[0063] The heat generated by the generator 8 during operation is taken away by the cooling medium flowing in through the generator water inlet pipe 18, and then flows to the generator radiator 24 through the generator water outlet pipe 20 for heat dissipation. The electronic water pump 16 extracts the cooling medium from the water tank through the motor controller water inlet pipe 17, and delivers the cooling medium to the generator controller 10 through the motor controller water outlet pipe 19 to cool it.

[0064] The dual high-pressure fan assembly 31 is distributed at the front end of the intercooler 23 and the generator radiator 24 to accelerate air flow and improve heat dissipation efficiency. The cooling unit assembly 2 integrates various pipes and components to ensure the orderly circulation of the cooling medium in the entire cooling system. The cabin cooling fan 4 is installed on the top panel of the cabin splicing panel 6 to enhance the air circulation in the power unit cabin and assist in heat dissipation.

[0065] The preheating relay 9 preheats the relevant components in a low temperature environment to ensure the starting performance. The automatic transfer switch controller 11 is responsible for controlling the working mode switching of the entire power unit. The DC power supply 14 provides stable power support for components such as the cooling fan and the electronic water pump 16. The fuel tank 15 stores fuel and continuously supplies fuel to the engine 30 through the oil pipe. The preheating relay 9 will determine whether to preheat the engine 30 according to the ambient temperature to ensure the normal starting of the engine 30 at low temperatures. Air is taken in from the top of the air filter device 3 and then exhausted through the silencer exhaust pipe 1. In order to avoid the influence of the intercooler 23 heat dissipation core and the water radiator 28 core, the two heat dissipation cores are arranged separately, and a dual high-pressure fan assembly 31 is equipped on the heat dissipation assembly. Compared with the traditional low-voltage electronic fan, the generator radiator 24 uses a dual high-pressure fan assembly 31 to efficiently and quickly dissipate heat for the generator 8 and the generator controller 10. The automatic transfer switch controller 11 controls the dual high-pressure fan assembly 31 and the cabin cooling fan 4 to start and stop, and half-open. The speed of the cabin cooling fan 4 is controlled and adjusted according to the radiator coolant outlet temperature, and the ventilation volume of the radiator body 22 is adjusted. When the coolant flows out from the engine radiator When the temperature of the coolant reaches 78°C, the water radiator 28 is turned on and fully opened at 82°C. The dual high-pressure fan assembly 31 at the front end of the generator radiator 24 is turned on at 40°C and fully opened at 55°C. As the temperature rises, the speed of the cabin cooling fan 4 increases. When the engine coolant temperature drops to the predetermined design temperature of 40°C, the dual high-pressure fan assembly 31 stops working, and the cabin cooling fan 4 is monitored in real time by the automatic transfer switch controller 11. When the cabin temperature reaches the predetermined value, the cabin cooling fan 4 is turned on. After the temperature sensor built into the power unit cabin measures that the cabin temperature is lower than the set value, the temperature sensor built into the power unit cabin transmits the signal to the automatic transfer switch controller 11, and the cabin cooling fan 4 stops. The automatic transfer switch controller 11 can automatically control the start and stop, speed, etc. of the dual high-pressure fan assembly 31 and the cabin cooling fan 4 according to the signal of the temperature sensor, reflecting the intelligent control function of the system.

[0066] The engine 30 and the generator 8 are connected via a Geislinger elastic coupling. This connection method not only realizes efficient transmission of the engine power to the generator 8, but also relies on the elastic elements inside the coupling to absorb and buffer the vibration and impact of the engine 30 during operation, thereby playing a good vibration reduction role.

[0067] The cabin main frame 5 serves as the main supporting structure and together with the cabin joint panels 6 constitute the power unit cabin, providing protection and installation basis for internal components.

[0068] The generator expansion tank 25 is installed beside the generator 8 and communicated with the generator 8 through a pipeline to accommodate the volume expansion of the cooling medium due to temperature changes. Similarly, the engine expansion tank 27 is connected to the engine 30 to handle the volume change of the cooling medium in the engine cooling system.

[0069] The first driving device 12 and the second driving device 13 respectively perform specific control functions to ensure the normal operation of the system.

[0070] According to the installation position of the power unit compartment, the movable frame 50 can slide up and down in the fixed frame 51 and be fixed by adjusting the screw 53. When the movable frame 50 does not need to be extended, such as Fig.11 As shown, two adjusting screws 53 are used to fix the movable frame 50 and the fixed frame 51, one at the top and the other at the bottom. When the movable frame 50 needs to be extended, as shown in FIG. Fig. 9 As shown, two adjusting screws 53 fix the position of the movable frame 50 at the overlap of the movable frame 50 and the fixed frame 51. According to the extended length of the movable frame 50, the movable frame 50 is fixed by using the maximum distance between the two adjusting screws 53. At the same time, the maximum distance between the two adjusting screws 53 is also conducive to dispersing the distance between the force points, which is conducive to the stability and durability of the connection between the movable frame 50 and the fixed frame 51.

[0071] The connecting frame 35 can be installed vertically or horizontally according to the installation position. Regardless of vertical or horizontal, the inner box 57 can be inserted into the movable frame 50 because it is square. After one of the fixing rods 54 is inserted into the circular groove 58, the fixing rods 54 adjacent to each other above and below the fixing rod 54 are respectively attached to the upper and lower surfaces of the outer wall of the inner box 57. The inner box 57 is fixed at a specified position by three fixing rods 54 and positioning nuts 49, thereby achieving the effect of fixing the position of the connecting frame 35, improving the applicability of the installation, and the vertical or horizontal direction of the connecting frame 35 can be selected, and the installation height can also be selected for easy installation;

[0072] The first slide cover 37 and the second slide cover 38 cooperate with the mounting frame 33 to form a guide cover, which guides the airflow discharged from the cabin cooling fan 4 to the dual high-pressure fan assembly 31. The closed guide cover can more accurately control the direction of the airflow, ensure that the airflow discharged from the cabin cooling fan 4 is accurately guided to the dual high-pressure fan assembly 31, reduce the loss and turbulence of the airflow, thereby improving the heat dissipation efficiency. The closed design may reduce the noise generated during the flow of the airflow, optimize the operating environment of the power unit, and prevent the dual high-pressure fan assembly 31 and other components from being hit and damaged by external objects, thereby extending their service life;

[0073] By rotating the bolts on connecting piece 2 59 and connecting piece 1 39, sliding cover 1 37 and sliding cover 2 38 can be slid and separated along the mounting frame 33, thereby forming an inspection port, which is convenient for selecting to slide open sliding cover 1 37 or sliding cover 2 38 for inspection and maintenance. The operation is quick and easy. By rotating the bolts on the connecting seat 42 to separate it from the limit seat 34, and then sliding the entire guide assembly to the right, the positioning rod 47 separates the support frame 36 on the left, and the clamping strip 32 slides to the right along the bottom groove 60 for a while, the guide assembly can be completely disassembled, which is convenient for the disassembly and assembly of the entire guide assembly.

[0074] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A strong heat dissipation vehicle-mounted intelligent power unit, characterized in that: It includes a power unit compartment, a cooling unit assembly (2) and a double high-pressure fan assembly (31). An engine (30), a generator (8) and electrical components are installed inside the power unit compartment, and an air filtering device (3) is installed at the top air inlet of the power unit compartment; A diversion assembly is arranged above the power unit compartment, and a mounting assembly is arranged on the side of the power unit compartment. The power unit compartment includes a cabin main frame (5) and a cabin splicing panel (6). A heat dissipation unit is installed on the top of the power unit compartment, and a cabin heat dissipation fan (4) is installed on the top panel of the cabin splicing panel (6); Among them, the diversion assembly includes a mounting frame (33), a fixing plate (41), a sliding cover one (37) and a sliding cover two (38); The mounting assembly is composed of three identical mounting brackets. The mounting bracket includes a fixed frame (51), a movable frame (50), a connecting frame (35) and a bottom frame (52).

2. A strong heat dissipation type vehicle-mounted intelligent power unit as claimed in claim 1, characterized in that: A clamping strip (32) and a perforated limit seat (34) are also fixed on the top panel of the cabin splicing panel (6). Side plates (40) are fixed on the arc-shaped rods on both sides of the mounting frame (33). The fixing plate (41) is fixed at the bottom of the side plate (40) close to the air filtering device (3). A connecting seat (42) with a bolt is fixed on the fixing plate (41). A pair of sliding grooves one (44) and a pair of sliding grooves two (43) are respectively opened at the upper and lower ends of the mounting frame (33). Sliding strips one (45) and sliding strips two (46) are respectively fixed at the upper and lower ends of the sliding cover one (37) and the sliding cover two (38); Among them, the two sliding strips one (45) are respectively clamped in the two sliding grooves one (44), the two sliding strips two (46) are respectively clamped in the two sliding grooves two (43), and connecting pieces one (39) with screws are fixed at the separated ends of the sliding cover one (37) and the sliding cover two (38). Connecting pieces two (59) with holes are fixedly connected on the arc-shaped rods on both sides of the mounting frame (33). Two positioning rods (47) are fixed on the side plate (40) far from the air filtering device (3).

3. A strong heat dissipation type vehicle-mounted intelligent power unit as claimed in claim 2, characterized in that: The bottom frame (52) is fixed to the bottom of the power unit compartment by bolts. The fixed frame (51) and the bottom frame (52) are fixed to form an L-shaped frame. The fixed frame (51) and the movable frame (50) are both C-shaped frames, and the movable frame (50) is sleeved inside the fixed frame (51); Among them, a set of vertical positioning grooves (55) are opened on both the movable frame (50) and the fixed frame (51). A set of fixed rods (54) are also fixed on the inner wall of the movable frame (50). A positioning nut (49) is threadedly sleeved on one of the fixed rods (54), and adjusting screws (53) with nuts are sleeved in two of the positioning grooves (55).

4. A strong heat dissipation type vehicle-mounted intelligent power unit as claimed in claim 3, characterized in that: A square groove (48) is opened in the middle part of the connecting frame (35). An inner box (57) in the shape of a square is fixed at the notch of the square groove (48) facing the movable frame (50). A circular groove (58) is opened in the middle part of the inner box (57). The positioning nut (49) is located inside the inner box (57), and the inner box (57) is movably clamped in the C-shaped groove body of the movable frame (50).

5. A strong heat dissipation type vehicle-mounted intelligent power unit as claimed in claim 4, characterized in that: The electrical components are composed of a preheating relay (9), a DC power supply (14), a first drive component (12), a second drive component (13), an oil tank (15) and an automatic transfer switch controller (11); The heat dissipation unit is composed of a radiator body (22), a water radiator (28), an intercooler (23) and a generator radiator (24); The dual high-pressure fan components (31) are distributed at the front end of the intercooler (23) and the generator radiator (24).

6. A strong heat dissipation type vehicle-mounted intelligent power unit as claimed in claim 5, characterized in that: The cooling unit assembly (2) is installed on the upper part of the cabin main frame (5), and the cooling unit assembly (2) is composed of an electronic water pump (16), a motor controller water inlet pipeline (17), a generator water inlet pipeline (18), a motor controller water outlet pipeline (19), a generator water outlet pipeline (20), an engine air outlet pipeline (21), a generator expansion water tank (25), an engine air inlet pipeline (26), an engine expansion water tank (27), and an engine water return pipeline (29); The engine (30) and the generator (8) are connected via a Geislinger elastic coupling. A silencer (7) and a silencer exhaust pipe (1) are installed on the left side of the power unit compartment. One end of the silencer exhaust pipe (1) is connected to the silencer (7) and the other end discharges exhaust gas to the outside of the vehicle. The silencer exhaust pipe (1) is located on the left side of the power unit compartment.

7. A strong heat dissipation type vehicle-mounted intelligent power unit as claimed in claim 6, characterized in that: The electronic water pump (16) is connected to the generator controller (10) via a motor controller water inlet pipeline (17) and a motor controller water outlet pipeline (19), and the generator (8) is connected to the generator radiator (24) via a generator water inlet pipeline (18) and a generator water outlet pipeline (20).

8. A strong heat dissipation type vehicle-mounted intelligent power unit as claimed in claim 7, characterized in that: The water radiator (28) is located between the intercooler (23) and the generator radiator (24), and the three are installed side by side on the top of the power unit compartment. The intercooler (23) is located between the engine (30) and the air filter device (3), and is connected to the engine (30) through a pipeline.

9. A strong heat dissipation type vehicle-mounted intelligent power unit as claimed in claim 8, characterized in that: The engine exhaust pipe (21) is led out from the engine (30), passes through the cabin main frame (5) and extends to the left side. The generator expansion tank (25) is installed next to the generator (8) and is connected to the generator (8) through a pipeline. One end of the motor controller water inlet pipe (17) is connected to the electronic water pump (16) and the other end is connected to the generator controller (10). The oil tank (15) is located in the power unit cabin and is connected to the engine (30) through an oil pipe. One end of the engine return pipe (29) is connected to the engine (30) and the other end is connected to the water radiator (28). One end of the engine intake pipe (26) is connected to the engine (30) and the other end leads to the air filter device (3).

10. A strong heat dissipation type vehicle-mounted intelligent power unit as claimed in claim 9, characterized in that: The first drive device (12) and the second drive device (13) are installed side by side in the cabin main frame (5), located on one side of the automatic transfer switch controller (11), two inclined support frames (36) are fixed between the power unit cabin and the cooling unit assembly (2), and a bottom groove (60) is provided at the bottom of the structure composed of the installation frame (33) and the two side panels (40).

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