New energy vehicle-mounted heat dissipation module

Abstract

The invention discloses a new energy vehicle-mounted heat dissipation module, and relates to the field of new energy vehicles, the new energy vehicle-mounted heat dissipation module comprises a mounting substrate, a heat conduction plate is fixed on the mounting substrate, a plurality of uniformly distributed heat dissipation fins are fixed on the heat conduction plate, a plurality of U-shaped heat pipes are arranged on the mounting substrate, and the U-shaped heat pipes are filled with heat absorption working media. A heat exchange enhancement mechanism is arranged on the mounting base plate, and an air guide mechanism is arranged on the mounting base plate. Heat of a heat source is transmitted to an evaporation section of the U-shaped heat pipe through a heat conducting plate, an internal working medium evaporates, steam is condensed and releases heat in a condensation section, the heat is transmitted to fins, and when it is judged that the temperature of a certain area exceeds a first threshold value, an intensified heat exchange mechanism and an air guide mechanism are instructed to be cooperatively started for directional intensified heat dissipation; therefore, the convection heat exchange efficiency of the air flow and the surfaces of the heat dissipation fins is greatly enhanced, and the heat dissipation potential of the gathered cold air is exerted to extremely enhance the forced convection heat exchange of the air, the heat dissipation fins and the surfaces of the U-shaped heat pipes.

Description

Technical Field

[0001] This application relates to the field of new energy vehicles, and in particular to a new energy vehicle on-board heat dissipation module. Background Technology

[0002] As new energy vehicles rapidly iterate towards longer range, higher power, and greater intelligence, the integration and power density of on-board electrical equipment are constantly increasing. Core components such as MCUs (motor controllers), DC / DC converters, on-board chargers (OBCs), and high-precision sensors have become critical heat sources. Many of these devices are characterized by their compact size and limited installation space, with some heat sources having a contact area of ​​less than 5cm², yet they need to stably dissipate 50-100W of heat, making heat dissipation increasingly challenging.

[0003] Traditional finned air cooling technology is the mainstream solution for vehicle heat dissipation. Its core principle is to conduct heat through direct contact between the heat dissipation fins and the heat source, and then remove the heat with the help of airflow. However, this solution has significant shortcomings in scenarios with small-volume heat sources.

[0004] On the one hand, the space in the vehicle-mounted equipment installation area is cramped, and it is difficult to arrange enough heat dissipation fins around the small heat source and make them fully fit the heat source, which leads to the obstruction of the heat conduction path and the significant limitation of the heat dissipation area. On the other hand, the heat conduction efficiency of relying solely on fins is low, and the high heat accumulated in a small area cannot be quickly dissipated, which can easily cause local overheating, leading to equipment performance degradation, shortened lifespan, and even potential failure hazards. Summary of the Invention

[0005] The purpose of this application is to address the problems mentioned in the background art, such as the limited space in the installation area of ​​vehicle-mounted equipment, the difficulty in arranging sufficient heat dissipation fins around small heat sources and ensuring they are in close contact with the heat sources, which leads to obstructed heat conduction paths and significantly limited heat dissipation area. On the other hand, relying solely on fins results in low heat conduction efficiency, and the high heat accumulated in small areas cannot be quickly dissipated, easily causing local overheating, which in turn leads to equipment performance degradation, shortened lifespan, and even potential malfunctions. This application provides a new energy vehicle-mounted heat dissipation module.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A new energy vehicle heat dissipation module includes a mounting base plate, a heat-conducting plate fixed on the mounting base plate, and a plurality of evenly distributed heat dissipation fins fixed on the heat-conducting plate, forming a fin group. The mounting base plate has a plurality of mounting holes, and a plurality of evenly distributed temperature sensors are installed in the fin group. The mounting base plate is provided with a plurality of U-shaped heat pipes, the openings of which are tilted. One side of each U-shaped heat pipe is fixedly connected to the heat-conducting plate and passes through a plurality of heat dissipation fins. The other side of each U-shaped heat pipe also passes through a plurality of heat dissipation fins. The U-shaped heat pipes are hollow and filled with a heat-absorbing working fluid. The mounting base plate is provided with an enhanced heat exchange mechanism and an air guiding mechanism.

[0008] By adopting the above technical solution, the heat from the heat source is transferred to the evaporation section of the U-shaped heat pipe via the heat conduction plate. The internal working fluid evaporates, and the steam condenses and releases heat in the condensation section. The heat is transferred to the fins. When the temperature of a certain area exceeds the first threshold, the enhanced heat exchange mechanism and the air guide mechanism are instructed to start in coordination to carry out directional enhanced heat dissipation. This completely destroys the stagnant thermal boundary layer on the surface of the heat dissipation fins, greatly enhances the convective heat transfer efficiency between the airflow and the fin surface, and maximizes the heat dissipation potential of the gathered cold air to enhance the forced convective heat transfer between the air and the heat dissipation fins and the surface of the U-shaped heat pipe.

[0009] Furthermore, the enhanced heat exchange mechanism includes three sets of support shafts arranged in rows on the mounting base plate. The support shafts pass through several heat dissipation fins and are rotatably connected to several heat dissipation fins. Several heat exchange guides are fixed on the support shafts. The heat exchange guides are located between adjacent heat dissipation fins. Flexible connecting guides are fixed between the heat exchange guides on adjacent sets of support shafts. An adjustment component is provided on one side of the mounting base plate.

[0010] By adopting the above technical solution, several heat exchange guide bars are supported by a support shaft, and adjacent heat exchange guide bars are connected by connecting guide bars. This changes the path of cold air through the cooling fins, thereby generating more intense turbulent exchange between the cold air and the fin surface, increasing the residence time of the cold air in adjacent heat exchange fins, and significantly improving the heat transfer coefficient.

[0011] Furthermore, the adjustment assembly includes a support block fixed on the mounting base plate, a servo motor fixed on the support block, a synchronizing element provided on one side of a single set of support shafts, and the servo motor fixedly connected to one end of one of the support shafts.

[0012] By adopting the above technical solution, the servo motor directly drives a single support shaft, and the synchronization component ensures the synchronization of shafts in the same row. This achieves reliable and precise control of the entire enhanced heat exchange mechanism in a simple single-point drive mode, reducing the complexity and cost of the system.

[0013] Furthermore, the synchronizing element includes several synchronizing rods 1 fixed to one end of the air guide shaft, and synchronizing rods 2 are rotatably connected to both ends of the synchronizing rods 1 between adjacent support shafts in the same group.

[0014] By adopting the above technical solution, when the servo motor drives the first support shaft to rotate, the synchronizing rod 1 fixed on it starts to swing as the active rod. This swing, through the synchronizing rod 2 hinged to it, immediately pushes the synchronizing rod 1 on the adjacent second support shaft, forcing the second support shaft to rotate synchronously. This transforms the single-point rotation input of the servo motor into a strictly synchronized mechanical output of all support shafts in the same column, ensuring the accuracy and consistency of the peak and trough positions of the heat exchange guide bars in the same column when forming a wave-shaped channel, providing a reliable guarantee for generating a stable and efficient turbulent flow field.

[0015] Furthermore, the connecting guide bar is a spring steel bar.

[0016] By adopting the above technical solution, the connecting guide bar is made of spring steel sheet with high elasticity and high fatigue strength, which gives the entire wave-shaped turbulence structure the necessary elasticity while rigidly transmitting motion, thus ensuring the linkage variability of the wave channel shape.

[0017] Furthermore, the air guiding mechanism includes an air guiding frame fixed on the mounting base plate. The air guiding frame is located at the air inlet of a fin group composed of several heat dissipation fins. Several vertically distributed air guiding shafts are rotatably connected inside the air guiding frame. An air guiding plate is fixed on the air guiding shaft. An air guiding motor is fixed on the air guiding frame.

[0018] By adopting the above technical solution, the vertically adjustable air-guiding array composed of the air guide shaft and the air guide plate is equipped with an independent air guide motor for driving, thereby enabling the heat dissipation system to actively adjust the distribution of airflow in the horizontal direction, reducing the possibility of horizontal local overheating in the fin group composed of heat dissipation fins, which may lead to uneven heat dissipation.

[0019] Furthermore, several horizontally distributed air guide shafts are rotatably connected inside the air guide frame, air guide plates are fixed on the air guide shafts, and an air guide motor is fixed on one side of the air guide frame.

[0020] By adopting the above technical solution, a horizontally adjustable air-guiding array consisting of an air-guiding shaft and an air-guiding plate, as well as an independent air-guiding motor, are added inside the air-guiding frame. This allows the direction of the airflow to be adjusted in the vertical direction, enabling it to respond to local hot spots and achieve precise horizontal delivery of cooling airflow, significantly enhancing the system's ability to target heat dissipation in the face of non-uniform heat loads.

[0021] Furthermore, one end of each of the first and second air guide shafts is fixed with a gear 1, and a gear 2 is meshed between adjacent gear 1s. The gear 2 is rotatably connected to the air guide frame. The output end of the first air guide motor is fixedly connected to the gear 2 at one end of one of the first air guide shafts, and the output end of the second air guide motor is fixedly connected to the gear 1 at one end of one of the second air guide shafts.

[0022] By adopting the above technical solution, when the first air guide motor rotates, it drives the second gear to rotate. The second gear simultaneously drives the first gear on the two air guide shafts meshing with it to move. When the second air guide motor is activated, the power is transmitted through the direct meshing between the first and second gears, driving the entire gear chain to move, thereby ensuring the accuracy and consistency of airflow guidance control.

[0023] In summary, this application includes at least one of the following beneficial effects;

[0024] 1. In this application, heat from a heat source is transferred to the evaporation section of a U-shaped heat pipe via a heat-conducting plate. The internal working fluid evaporates, and the steam condenses and releases heat in the condensation section. This heat is transferred to the heat dissipation fins, and an external fan blows air onto the fins for cooling. When a temperature sensor in the heat dissipation fins detects that the fin temperature exceeds a set threshold, a servo motor receives the command and rotates precisely. Through a rigid linkage system consisting of synchronizer rod one and synchronizer rod two, one row of support shafts is driven to rotate. This rotation is then flexibly transmitted via spring steel connecting guide bars, causing all three rows of support shafts and the heat exchange guide bars welded to them to deflect synchronously. These heat exchange guide bars and connecting guide bars form a continuous wave-shaped turbulence channel between adjacent heat dissipation fins. When the heat is guided... When the strong airflow, guided directionally by the fan mechanism, passes through this channel, its flow path is forcibly altered, generating intense longitudinal vortices and turbulence. This completely destroys the stagnant thermal boundary layer on the surface of the heat sink fins, greatly enhancing the convective heat transfer efficiency between the airflow and the fin surface. It maximizes the heat dissipation potential of the converged cold air, strengthening the forced convective heat transfer between the air and the heat sink fins and U-shaped heat pipe surfaces. This allows the heat in locally overheated areas to be carried away more efficiently, effectively solving the pain points of uneven heat dissipation and low efficiency of traditional heat dissipation modules when dealing with dynamic heat loads. It provides stable and reliable temperature protection for core components such as batteries and motors in new energy vehicles, improving the operational safety and service life of new energy vehicles.

[0025] 2. This application utilizes miniature temperature sensors embedded in the roots of the fins in multiple monitoring areas at the front, middle, and rear of the heat dissipation fin assembly when the heat source load increases or the airflow distribution is uneven. Once the temperature of one or more areas exceeds a preset first-level threshold, while the temperature of other areas remains normal, the first and second air guide motors start. Through precise gear transmission, the first and second gears drive the vertical air guide plate and the second horizontal air guide plate to deflect synchronously, changing the overall macroscopic direction of the airflow. This concentrates and guides the cold air delivered by the fan to the hottest area, achieving precise delivery of cooling airflow. This precise and targeted delivery of cooling airflow avoids the energy waste caused by the full-load blowing of traditional heat dissipation modules. At the same time, it forms a synergistic effect of directional airflow guidance and turbulence enhancement with the enhanced heat exchange mechanism, allowing the convective heat transfer coefficient of the hot area to increase in a short time and quickly reduce the local temperature to within the safe threshold. This ensures the temperature stability of the core components of new energy vehicles under complex operating conditions, providing solid technical support for the efficient and safe operation of vehicles.

[0026] 3. In this application, by using spring steel sheets with high elasticity and high fatigue strength to make the connecting guide bars, when a row of support shafts is driven to rotate, causing the heat exchange guide bars on it to deflect, the relative position and angle between the heat exchange guide bars of that row and the adjacent heat exchange guide bars change. The spring steel connecting guide bars connecting them then undergo elastic bending deformation, which not only efficiently transmits torque and drives the next row of support shafts to rotate, but also jointly shapes a smooth wave-shaped airflow channel. This achieves the goal of giving the entire wave-shaped turbulence structure the necessary elasticity while rigidly transmitting motion, ensuring the linkage variability of the wave channel shape, and greatly improving the long-term working reliability and durability of the mechanism in the complex environment of the vehicle. Attached Figure Description

[0027] Figure 1 This is a first three-dimensional structural schematic diagram of the heat dissipation module in this application;

[0028] Figure 2 This is a second three-dimensional structural diagram of the heat dissipation module in this application;

[0029] Figure 3 This is a partial structural schematic diagram of the heat dissipation module in this application;

[0030] Figure 4 This is a partial structural schematic diagram of the enhanced heat exchange mechanism in this application;

[0031] Figure 5 This is a partial structural diagram of the air guiding mechanism in this application;

[0032] Figure 6 This application Figure 3 Enlarged view of point A in the middle;

[0033] Figure 7 This application Figure 5 Enlarged diagram of point B in the middle.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Mounting base plate; 2. Heat-conducting plate; 3. Heat dissipation fins; 4. U-shaped heat pipe; 5. Mounting hole; 6. Enhanced heat exchange mechanism; 61. Heat exchange guide bar; 62. Connecting guide bar; 63. Support shaft; 64. Adjustment assembly; 641. Support block; 642. Servo motor; 643. Synchronizing component; 6431. Synchronizing rod one; 6432. Synchronizing rod two; 7. Air guide mechanism; 71. Air guide frame; 72. Air guide shaft one; 73. Air guide plate one; 74. Air guide motor one; 75. Air guide shaft two; 76. Air guide plate two; 77. Air guide motor two; 78. Gear one; 79. Gear two; 8. Temperature sensor. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1 —7 provides further details regarding this application.

[0037] This application discloses a new energy vehicle heat dissipation module.

[0038] Reference Figure 1 , Figure 2 and Figure 3 A new energy vehicle heat dissipation module includes a mounting base plate 1, a heat-conducting plate 2 fixed on the mounting base plate 1, a plurality of evenly distributed heat dissipation fins 3 fixed on the heat-conducting plate 2, the plurality of heat dissipation fins 3 forming a fin group, a plurality of mounting holes 5 opened on the mounting base plate 1, a plurality of evenly distributed temperature sensors 8 installed in the fin group, a plurality of U-shaped heat pipes 4 provided on the mounting base plate 1, the opening of the U-shaped heat pipes 4 being tilted, one side of the U-shaped heat pipes 4 being fixedly connected to the heat-conducting plate 2 and passing through the plurality of heat dissipation fins 3, the other side of the U-shaped heat pipes 4 also passing through the plurality of heat dissipation fins 3, the U-shaped heat pipes 4 being hollow, the U-shaped heat pipes 4 being filled with a heat-absorbing working fluid, a heat exchange enhancement mechanism 6 provided on the mounting base plate 1, and a wind guiding mechanism 7 provided on the mounting base plate 1.

[0039] The mounting base 1 is an aluminum plate with multiple bolt mounting holes 5 along its edges. The heat-conducting plate 2 is made of oxygen-free copper and is fixed to the center of the mounting base 1 with thermal grease and bolts. The heat dissipation fins 3 are made of aluminum alloy and are combined with the mounting base 1 through a tube expansion process to form a fin assembly. In the fin assembly, there are three monitoring zones in the airflow direction: front, middle, and rear. In each monitoring zone, at least three fins located at the center and both sides are selected, and miniature temperature sensors 8 are embedded in the pre-set slots at their roots and fixed with thermally conductive adhesive. The evaporation sections of several U-shaped heat pipes 4 are fixed to the upper surface of the heat-conducting plate 2 by soldering or embedded pressing. Their condensation sections are in an inverted "U" shape that runs through all the heat dissipation fins 3 and are fixed to the heat dissipation fins 3 by brazing. The heat exchange enhancement mechanism 6 and the air guide mechanism 7 are respectively located in the fin assembly and on the air inlet side. When the module is working, the heat source Heat is transferred to the evaporation section of the U-shaped heat pipe 4 via the heat conduction plate 2. The internal working fluid evaporates, and the steam condenses and releases heat in the condensation section. The heat is transferred to the fins. All temperature sensors 8 continuously collect the temperature at the root of the fins in their respective areas and transmit the signal to the external vehicle thermal management controller. When the controller determines that the temperature of a certain area exceeds the first threshold, it instructs the enhanced heat exchange mechanism 6 and the air guide mechanism 7 to start in synergy to perform directional enhanced heat dissipation. By setting up a distributed temperature sensor network 8 that runs through the fin group and the U-shaped heat pipe 4, and combining enhanced heat exchange with the air guide mechanism 7, the stagnant thermal boundary layer on the surface of the heat dissipation fins 3 is completely destroyed, which greatly enhances the convective heat transfer efficiency between the airflow and the surface of the heat dissipation fins 3. This maximizes the heat dissipation potential of the gathered cold air and strengthens the purpose of forced convective heat transfer between the air and the surface of the heat dissipation fins 3 and the U-shaped heat pipe 4.

[0040] Reference Figure 3 , Figure 4 and Figure 6 The enhanced heat exchange mechanism 6 includes three sets of support shafts 63 arranged in a row on the mounting base plate 1. The support shafts 63 pass through several heat dissipation fins 3 and are rotatably connected to several heat dissipation fins 3. Several heat exchange guide strips 61 are fixed on the support shafts 63. The heat exchange guide strips 61 are located between adjacent heat dissipation fins 3. Flexible connecting guide strips 62 are fixed between the heat exchange guide strips 61 on adjacent sets of support shafts 63. An adjustment component 64 is provided on one side of the mounting base plate 1.

[0041] Three rows of support shafts 63 are perpendicular to the airflow direction. Each support shaft 63 passes through pre-drilled holes on all the heat dissipation fins 3. Multiple rectangular aluminum heat exchange guide strips 61 are welded axially at intervals on each support shaft 63. Each heat exchange guide strip 61 is positioned precisely between two adjacent heat dissipation fins 3. In a direction parallel to the airflow, flexible metal connecting strips 62 are fixed between the ends of heat exchange guide strips 61 at the same height on adjacent rows of support shafts 63. By default, the planes of all heat exchange guide strips 61 are parallel to the airflow direction, minimizing airflow resistance. When enhanced heat exchange is required, the adjusting component 64 drives one row of support shafts 63 to rotate, causing all heat exchange guide strips 61 on that row to rotate accordingly. The rotation is transmitted through the connecting guides 62 because the heat exchange guides 61 of adjacent columns are flexibly connected. This rotation causes all three columns of support shafts 63 and all heat exchange guides 61 to rotate, so that the heat exchange guides 61 and the connecting guides 62 form a wave-shaped channel between adjacent heat dissipation fins 3, which disturbs the airflow. By using the support shafts 63 to support several heat exchange guides 61 and using the connecting guides 62 to connect adjacent heat exchange guides 61, the path of cold air through the cooling fins is changed, so that the cold air and the surface of the heat dissipation fins 3 generate more intense turbulent exchange, increase the residence time of cold air on adjacent heat exchange fins, and significantly improve the heat transfer coefficient.

[0042] Reference Figure 3 and Figure 6 The adjustment component 64 includes a support block 641 fixed on the mounting base plate 1, a servo motor 642 fixed on the support block 641, a synchronization element 643 on one side of a single support shaft 63, and the servo motor 642 is fixedly connected to one end of one of the support shafts 63.

[0043] The support block 641 is fixed on the edge of one side of the mounting base plate 1. The servo motor 642 is mounted on the support block 641. The output shaft of the servo motor 642 is directly connected and fixed to the end of one of the support shafts 63 through a coupling. When the servo motor issues an instruction to change the angle, the servo motor 642 executes it precisely and directly drives the support shaft 63 connected to it to rotate. Then, the support shaft 63 uses the synchronizing element 643 and the connecting guide bar 62 to ensure the normal rotation of other support shafts 63. By using a high-precision servo motor 642 to directly drive a single support shaft 63 and using the synchronizing element 643 to ensure the synchronization of shafts in the same row, reliable and precise control of the entire enhanced heat exchange mechanism 6 is achieved in a simple single-point drive mode, reducing the complexity and cost of the system.

[0044] Reference Figure 3 and Figure 6 Synchronizing component 643 includes several synchronizing rods 6431 fixed to the end of the air guide shaft 72. Both ends of the synchronizing rods 6431 between adjacent support shafts 63 in the same group are rotatably connected to synchronizing rods 6432.

[0045] At the same end of two adjacent support shafts 63 in the same row, a synchronization rod 6431 is vertically fixed. The ends of the synchronization rod 6431 on the first support shaft 63 and the ends of the synchronization rod 6431 on the second support shaft 63 are hinged together by the ends of two synchronization rods 6432. The two synchronization rods 6431 and 6432 together form a rectangular linkage unit. When the servo motor 642 drives the first support shaft 63 to rotate, the synchronization rod 6431 fixed to it begins to swing as the active rod. This swing, through the hinged synchronization rod 6432, immediately pushes the synchronization rod 6431 on the adjacent second support shaft 63, forcing... The second support shaft 63 rotates synchronously, and the rotation is transmitted to the last support shaft 63 in the same column via a chain, ensuring that all support shafts 63 in the same column rotate in absolute synchronous motion without phase difference. This ensures that the angles of the entire row of heat exchange guide bars 61 driven by them are completely consistent. Through a rigid planar linkage system consisting of a first synchronous rod 6431 and a second synchronous rod 6432, the single-point rotation input of the servo motor 642 is converted into a strictly synchronized mechanical output of all support shafts 63 in the same column. This ensures the accuracy and consistency of the peak and trough positions of the heat exchange guide bars 61 in the same column when forming a wave-shaped channel, providing a reliable guarantee for generating a stable and efficient turbulence field.

[0046] Reference Figure 2 and Figure 3 The connecting guide bar 62 is a spring steel bar.

[0047] The connecting guide bar 62 is made of spring steel sheet with high elasticity and high fatigue strength. When a row of support shafts 63 is driven to rotate, causing the heat exchange guide bar 61 on it to deflect, the relative position and angle between the heat exchange guide bar 61 and the adjacent row of heat exchange guide bars 61 change. The spring steel connecting guide bar 62 connecting them undergoes elastic bending deformation, which not only efficiently transmits torque and drives the next row of support shafts 63 to rotate, but also jointly shapes a smooth wave-shaped airflow channel. By using spring steel as the material of the connecting guide bar 62, the entire wave-shaped turbulence structure is given the necessary elasticity while rigidly transmitting motion, ensuring the linkage variability of the wave channel shape and greatly improving the long-term working reliability and durability of the mechanism in the complex environment of the vehicle.

[0048] Reference Figure 2 , Figure 3 and Figure 5 The air guiding mechanism 7 includes an air guiding frame 71 fixed on the mounting base plate 1. The air guiding frame 71 is located at the air inlet of the fin group composed of several heat dissipation fins 3. Several vertically distributed air guiding shafts 72 are rotatably connected inside the air guiding frame 71. Air guiding plates 73 are fixed on the air guiding shafts 72. An air guiding motor 74 is fixed on the air guiding frame 71.

[0049] The air guide frame 71 is fixed to the mounting base 1 by a bracket and completely covers the air inlet surface of the heat dissipation fins 3. Inside the air guide frame 71, several air guide shafts 72 are equidistantly installed along a direction perpendicular to the mounting base 1. Each air guide shaft 72 has an air guide plate 73 fixed axially. All air guide plates 73 are initially arranged in parallel to form a grille with minimal airflow resistance. The air guide motor 74 is fixed to the top or side of the air guide frame 71 by a mounting base. When the control system determines that there is a temperature gradient in the vertical height of the heat dissipation module based on the data from the temperature sensor array 8, it directs airflow to the heat dissipation fins 3. The air guide motor 74 sends a control signal and starts, driving all the air guide shafts 72 to rotate synchronously at a certain angle. This causes all the air guide plates 73 to deflect as a whole, like louver blades, thereby changing the vertical incident angle of the airflow into the fin assembly. By setting up a vertically adjustable air guide array composed of air guide shafts 72 and air guide plates 73, and equipping it with an independent air guide motor 74 for driving, the heat dissipation system can actively adjust the distribution of airflow in the horizontal direction, reducing the possibility of horizontal local overheating in the fin assembly composed of heat dissipation fins 3, which could lead to uneven heat dissipation.

[0050] Reference Figure 2 , Figure 5 and Figure 7 Several horizontally distributed air guide shafts 75 are rotatably connected inside the air guide frame 71. Air guide plates 76 are fixed on the air guide shafts 75. An air guide motor 77 is fixed on one side of the air guide frame 71.

[0051] Inside the air guide frame 71, intersecting with the vertical air guide shaft 72, there is also a set of air guide shafts 75 arranged equidistantly along a direction parallel to the mounting base plate 1. The two ends of each air guide shaft 75 are rotatably connected to the left and right side frames of the air guide frame 71 via bearings. A horizontally arranged air guide plate 76 is fixed to each air guide shaft 75. An air guide motor 77 is fixed to the side of the air guide frame 71. When the temperature sensor 8 detects a significant localized hot spot in the vertical direction of the fin assembly, the air guide motor 77 drives the air guide shaft 75 to rotate, thereby rotating all the air guide shafts. The second plate 76 deflects synchronously. These horizontal air guide plates 76 can work together like a set of programmable guide vanes to horizontally divide and guide the incoming airflow, concentrating the airflow to the identified high-temperature side. By adding a horizontally adjustable air guide array consisting of an air guide shaft 75 and air guide plates 76 and an independent air guide motor 77 inside the air guide frame 71, the direction of the airflow can be adjusted in the vertical direction, enabling it to respond to local hot spots and achieve precise horizontal delivery of cooling airflow, significantly enhancing the system's targeted heat dissipation capability in the face of non-uniform heat loads.

[0052] Reference Figure 5 and Figure 7One end of each of the first air guide shaft 72 and the second air guide shaft 75 is fixed with a gear 78. A gear 79 meshes between adjacent gears 78. The gear 79 is rotatably connected to the air guide frame 71. The output end of the first air guide motor 74 is fixedly connected to the gear 79 at one end of one of the first air guide shafts 72. The output end of the second air guide motor 77 is fixedly connected to the gear 78 at one end of one of the second air guide shafts 75.

[0053] For the vertical array, a gear 78 of the same specification is fixedly installed at the top of each air guide shaft 72. Between the gears 78 of two adjacent air guide shafts 72, a gear 79, acting as an idler gear, is meshed. This gear 79 is mounted on the air guide frame 71 via a short shaft and bearings. The output shaft of the air guide motor 74 is directly coaxially fixed with any one of the gears 79. When the air guide motor 74 rotates, it drives the gear 79 to rotate. Simultaneously, the gear 79 drives the gears 78 on the two air guide shafts 72 meshing with it. The motion is transmitted to all air guide shafts 72 in the entire column through the series of gears 79, ensuring that the deflection angles of all air guide plates 73 are absolutely synchronized. For the horizontal array, each... A gear 78 is fixedly installed at one end of each air guide shaft 2 75, and the gears 78 on adjacent air guide shafts 2 75 mesh directly in sequence to form a continuous gear chain. The output shaft of the air guide motor 2 77 is directly connected to one of the gears 78 at the end of this gear chain or connected through a coupling. When the air guide motor 2 77 is activated, the power is transmitted through the direct meshing between gears 78 and 79, driving the entire gear chain to move, thereby driving all air guide shafts 2 75 and air guide plates 2 76 to rotate synchronously without phase difference. By using the meshing transmission chain composed of gears 78 and 79 to drive the vertical and horizontal air guide arrays respectively, the accuracy and consistency of airflow guidance control are ensured.

[0054] Working principle: When the entire new energy vehicle heat dissipation module is running, it is initially in a basic heat dissipation state. The mounting base plate 1 is tightly attached to the heat source surface of the vehicle power electronic device. The concentrated heat generated by the device is quickly transferred to the central copper heat conduction plate 2 through heat conduction. The heat conduction plate 2 efficiently diffuses the heat to the evaporation section of several U-shaped heat pipes 4 welded to it. The working medium inside the heat pipe evaporates instantly after being heated, and a large amount of heat is quickly transferred to the condensation section that runs through the entire aluminum alloy heat dissipation fin group 3 using the latent heat of phase change. During this process, the heat is evenly released onto the densely arranged heat dissipation fins 3. At the same time, the axial fan located on the side of the heat dissipation module runs continuously, generating a stable forced cooling airflow. The airflow passes parallel through the narrow channel between the fins and carries away the heat from the fin surface through convection, thereby achieving continuous basic heat dissipation.

[0055] When the heat source load increases or the airflow distribution is uneven, the heat dissipation module enters the monitoring and sensing state. The miniature temperature sensors 8 embedded in the roots of the fins in multiple monitoring areas at the front, middle and rear of the fin assembly continuously feed back the real-time temperature data of each local area to the vehicle thermal management controller. Once it is identified that the temperature of one or more areas exceeds the preset first-level threshold, while the temperature of other areas is normal, it is determined that a local overheating hot spot has appeared, indicating that the basic heat dissipation capacity is insufficient to balance the heat load at that point.

[0056] Immediately, a coordinated command is sent to the enhanced heat exchange mechanism 6 and the air guide mechanism 7, activating the air guide motor 74 and the air guide motor 77. Through precise gear transmission via gears 78 and 79, the vertical air guide plate 73 and the horizontal air guide plate 76 are driven to deflect synchronously, changing the overall macroscopic direction of the airflow. This concentrates and guides the cold air delivered by the fan to the hottest area, achieving precise delivery of cooling airflow. Following this, the enhanced heat exchange mechanism 6 operates synchronously. Upon receiving the command, the servo motor 642 rotates precisely, driving the air flow through a rigid linkage system composed of synchronous rods 6431 and 6432. One of the support shafts 63 rotates, and through the flexible transmission of the spring steel connecting guide bar 62, it drives all three support shafts 63 and the heat exchange guide bars 61 welded on them to deflect synchronously. These heat exchange guide bars 61 and connecting guide bars 62 form a continuous wave-shaped turbulence channel between adjacent heat dissipation fins 3. When the strong airflow guided by the air guide mechanism 7 passes through this channel, its flow path is forcibly changed, generating violent longitudinal vortices and turbulence, which completely destroys the stagnant thermal boundary layer on the fin surface, greatly enhancing the convective heat transfer efficiency between the airflow and the surface of the heat dissipation fins 3, and maximizing the heat dissipation potential of the converged cold air.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A new energy vehicle on-board heat dissipation module, comprising a mounting base plate (1), characterized in that: A heat-conducting plate (2) is fixed on the mounting base (1). Several uniformly distributed heat dissipation fins (3) are fixed on the heat-conducting plate (2). Several heat dissipation fins (3) form a fin group. Several mounting holes (5) are opened on the mounting base (1). Several uniformly distributed temperature sensors (8) are installed in the fin group. Several U-shaped heat pipes (4) are provided on the mounting base (1). The opening of the U-shaped heat pipe (4) is tilted. One side of the U-shaped heat pipe (4) is fixedly connected to the heat-conducting plate (2) and passes through several heat dissipation fins (3). The other side of the U-shaped heat pipe (4) also passes through several heat dissipation fins (3). The U-shaped heat pipe (4) is hollow. The U-shaped heat pipe (4) is filled with heat-absorbing working fluid. An enhanced heat exchange mechanism (6) is provided on the mounting base (1). An air guide mechanism (7) is provided on the mounting base (1).

2. The new energy vehicle heat dissipation module according to claim 1, characterized in that: The enhanced heat exchange mechanism (6) includes three sets of support shafts (63) arranged in a row on the mounting base plate (1). The support shafts (63) pass through several heat dissipation fins (3) and are rotatably connected to several heat dissipation fins (3). Several heat exchange guides (61) are fixed on the support shafts (63). The heat exchange guides (61) are located between adjacent heat dissipation fins (3). Flexible connecting guides (62) are fixed between the heat exchange guides (61) on adjacent sets of support shafts (63). An adjustment component (64) is provided on one side of the mounting base plate (1).

3. A new energy vehicle heat dissipation module according to claim 2, characterized in that: The adjustment component (64) includes a support block (641) fixed on the mounting base plate (1), a servo motor (642) fixed on the support block (641), a synchronizing element (643) is provided on one side of a single set of support shafts (63), and the servo motor (642) is fixedly connected to one end of one of the support shafts (63).

4. A new energy vehicle heat dissipation module according to claim 3, characterized in that: The synchronizing element (643) includes several synchronizing rods (6431) fixed at one end of the air guide shaft (72), and synchronizing rods (6432) are rotatably connected to both ends of the synchronizing rods (6431) between adjacent support shafts (63) in the same group.

5. A new energy vehicle on-board heat dissipation module according to claim 2, characterized in that: The connecting guide bar (62) is a spring steel bar.

6. A new energy vehicle heat dissipation module according to claim 2, characterized in that: The air guiding mechanism (7) includes an air guiding frame (71) fixed on the mounting base plate (1). The air guiding frame (71) is located at the air inlet of a fin group composed of several heat dissipation fins (3). Several vertically distributed air guiding shafts (72) are rotatably connected inside the air guiding frame (71). An air guiding plate (73) is fixed on the air guiding shaft (72). An air guiding motor (74) is fixed on the air guiding frame (71).

7. A new energy vehicle heat dissipation module according to claim 6, characterized in that: Several horizontally distributed air guide shafts (75) are rotatably connected inside the air guide frame (71). An air guide plate (76) is fixed on the air guide shaft (75). An air guide motor (77) is fixed on one side of the air guide frame (71).

8. A new energy vehicle heat dissipation module according to claim 7, characterized in that: One end of each of the first air guide shaft (72) and the second air guide shaft (75) is fixed with a gear (78). A gear (79) meshes between adjacent gears (78). The gear (79) is rotatably connected to the air guide frame (71). The output end of the first air guide motor (74) is fixedly connected to the gear (79) at one end of one of the first air guide shafts (72). The output end of the second air guide motor (77) is fixedly connected to the gear (78) at one end of one of the second air guide shafts (75).

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