New energy automobile radiator with double-channel radiating structure

Abstract

The utility model discloses a new energy automobile radiator with a double-channel heat dissipation structure, which comprises a liquid inlet header pipe, a liquid outlet header pipe, a heat dissipation module and a fan, a first cooling channel and a second cooling channel which are mutually independent are arranged in the heat dissipation module, and the first cooling channel and the second cooling channel are communicated with the liquid inlet header pipe through a three-way valve. The double-channel cooling liquid circulation structure is matched with the three-way valve and the temperature sensor, and the flow direction and flow of cooling liquid can be intelligently adjusted according to different working conditions and heating differences of parts of the new energy automobile. When the load is low, the first cooling channel with the large sectional area realizes primary heat dissipation; when the load is high, the second cooling channel with the small sectional area accelerates the flowing speed of cooling liquid and enhances local heat dissipation, compared with a single-channel structure, the problem of uneven heat dissipation is effectively solved, and the temperature difference of all areas of the heat dissipation module is remarkably reduced.

Description

Technical Field

[0001] This utility model belongs to the field of automotive radiator technology, specifically relating to a new energy vehicle radiator with a dual-channel heat dissipation structure. Background Technology

[0002] In the field of new energy vehicles, with the rapid development of technology, the power density of vehicles is constantly increasing, and key components such as motors and batteries generate a lot of heat during operation. An efficient cooling system is crucial for maintaining the stable performance of these components, extending their service life, and ensuring the safe operation of the vehicle.

[0003] Currently, various radiator technologies for new energy vehicles exist on the market. For example, some existing technologies use a single-channel coolant circulation system, where coolant flows from the inlet manifold into a single cooling channel, absorbs heat in the heat dissipation module, and then flows out from the outlet manifold. This single-channel design is relatively simple, but it has significant drawbacks. When the vehicle is under complex operating conditions, such as high-speed driving or frequent start-stop cycles, the heat dissipation requirements of different areas vary. A single channel cannot achieve precise coolant distribution, leading to uneven heat dissipation and overheating in some areas. Utility Model Content

[0004] The purpose of this invention is to provide a new energy vehicle radiator with a dual-channel heat dissipation structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a new energy vehicle radiator with a dual-channel heat dissipation structure, including an inlet manifold, an outlet manifold, a heat dissipation module, and a fan. The heat dissipation module is provided with an independent first cooling channel and a second cooling channel. The first cooling channel and the second cooling channel are connected to the inlet manifold through a three-way valve.

[0006] The surface of the heat dissipation module is provided with wavy fins, and the sides of the fins are provided with flow guide grooves;

[0007] An integrated air guide plate is provided around the heat dissipation module, and the air guide plate forms an air guide angle with the air outlet of the fan.

[0008] Preferably, the first cooling channel and the second cooling channel are arranged in parallel, and the cross-sectional area of ​​the first cooling channel is 1.5-2 times that of the second cooling channel. The parallel arrangement of the dual-channel structure can realize flexible distribution of coolant according to the heat generation differences of various components under different operating conditions of new energy vehicles.

[0009] Preferably, the wave crest spacing of the wavy fin is 2-3 mm and the wave height is 0.8-1.2 mm. The guide groove extends spirally along the length of the fin. The wavy fin with specific parameters can effectively disturb the airflow boundary layer, increase the contact area and contact time between the airflow and the fin, and improve the convective heat transfer efficiency.

[0010] Preferably, the integrated air guide plate includes a main air guide plate and a secondary air guide plate. The main air guide plate is perpendicular to the surface of the heat dissipation module, and the secondary air guide plate forms an angle of 30°-45° with the main air guide plate. The integrated air guide plate rationally distributes the airflow blown out by the fan through the synergistic effect of the main air guide plate and the secondary air guide plate.

[0011] Preferably, the heat dissipation module is equipped with a temperature sensor, which is electrically connected to the three-way valve. The temperature sensor monitors the internal temperature of the heat dissipation module in real time and feeds the data back to the three-way valve to realize intelligent switching and flow regulation of the coolant channel.

[0012] Preferably, the fins are made of high thermal conductivity aluminum alloy and coated with a nano-ceramic coating. The high thermal conductivity aluminum alloy gives the fins good thermal conductivity, providing a basis for efficient heat dissipation.

[0013] Preferably, a thin aluminum plate is bolted to one side of the heat dissipation module, and guide plates are evenly arranged on the outer side of the thin aluminum plate. The fan is bolted to the guide plates and fixed to one side of the heat dissipation module. The thin aluminum plate not only enhances the structural strength of the heat dissipation module, but also assists in heat dissipation.

[0014] Preferably, both the inlet manifold and the outlet manifold are equipped with pressure sensors to prevent heat dissipation failure due to abnormal pressure and to ensure that the radiator continuously and efficiently dissipates heat for the key components of new energy vehicles.

[0015] Compared with existing technologies, the technical effects and advantages of this utility model are: this dual-channel heat dissipation structure radiator for new energy vehicles...

[0016] The dual-channel coolant circulation structure, combined with a three-way valve and temperature sensor, can intelligently adjust the coolant flow direction and flow rate according to different operating conditions and component heat dissipation differences in new energy vehicles. Under low load, the large-section first cooling channel achieves initial heat dissipation; under high load, the small-section second cooling channel accelerates the coolant flow rate and enhances local heat dissipation. Compared with the single-channel structure, it effectively solves the problem of uneven heat dissipation and significantly reduces the temperature difference between different areas of the heat dissipation module.

[0017] The wavy fins, combined with spirally extending guide grooves, effectively disrupt the airflow boundary layer, significantly increasing the contact area and time between the airflow and the fins, thus enhancing convective heat transfer. Specific fin parameter design significantly improves the heat transfer per unit volume of the heat dissipation module compared to traditional straight fins, efficiently handling the large amounts of heat generated during the operation of key components in new energy vehicles.

[0018] The integrated air deflector, through the coordinated work of the main air deflector and the secondary air deflector, rationally distributes the airflow blown out by the fan. The main airflow impacts the middle of the heat dissipation module, while the secondary airflow covers the edge area, eliminating airflow blind spots and ensuring that all parts of the heat dissipation module receive sufficient airflow. This optimizes the overall airflow organization and effectively improves the overall heat dissipation efficiency compared to heat sinks that lack air deflector design.

[0019] Pressure sensors installed on the inlet and outlet manifolds monitor coolant pressure in real time, promptly detecting abnormal flow and pipe blockages to prevent heat dissipation failure due to pressure anomalies. The heat dissipation module is reinforced with thin aluminum plates to enhance structural strength and aid in heat dissipation. Meanwhile, the integrated design of the guide plate and fan ensures stable airflow transmission. Combined with the intelligent linkage of temperature sensors and three-way valves, the system comprehensively ensures the radiator's continuous and efficient operation under complex conditions, extending the service life of key components in new energy vehicles. Attached Figure Description

[0020] Figure 1 This is a side view of the radiator of this utility model;

[0021] Figure 2 This is a front view of the first cooling channel bead of this utility model;

[0022] Figure 3 This is a front view of the second cooling channel of this utility model;

[0023] Figure 4 This is a side sectional view of the heat dissipation module of this utility model;

[0024] Figure 5 This is a front view of the wavy fin of this utility model;

[0025] Figure 6 This is a diagram of the integrated air guide plate of this utility model;

[0026] Figure 7 This is the front view of the radiator of this utility model.

[0027] In the diagram: 1. Inlet manifold; 2. Outlet manifold; 3. Heat dissipation module; 4. Fan; 5. First cooling channel; 6. Second cooling channel; 7. Three-way valve; 8. Corrugated fins; 9. Flow guide groove; 10. Integrated flow guide plate; 11. Main flow guide plate; 12. Secondary flow guide plate; 13. Temperature sensor; 14. Thin aluminum plate; 15. Pressure sensor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-7 This utility model provides a technical solution: a dual-channel heat dissipation structure for a new energy vehicle radiator, including an inlet manifold 1, an outlet manifold 2, a heat dissipation module 3, and a fan 4. The heat dissipation module 3 internally has a first cooling channel 5 and a second cooling channel 6, which are connected to the inlet manifold 1 via a three-way valve 7. In actual operation, when the new energy vehicle is under low load, such as slow driving on urban roads, the motor and battery generate less heat. The temperature sensor 13 detects that the overall temperature of the heat dissipation module 3 is low and feeds a signal back to the three-way valve 7. The three-way valve 7 controls most of the coolant to flow into the first cooling channel 5, which has a larger cross-sectional area, achieving initial heat dissipation at a lower flow rate. When the vehicle is under high load, such as high-speed driving or rapid acceleration, the heat generated by the components increases dramatically. The temperature sensor 13 detects localized high temperatures, and the three-way valve 7 quickly switches, allowing more coolant to flow into the second cooling channel 6. Utilizing its smaller cross-sectional area, the second channel 6 accelerates the coolant flow rate, enhances convective heat transfer, and achieves precise heat dissipation.

[0030] The heat dissipation module 3 has wavy fins 8 on its surface, and guide grooves 9 are formed on the sides of the fins 8. The wave crest spacing of the wavy fins 8 is set to 2-3 mm, and the wave height is 0.8-1.2 mm. These dimensional parameters have been verified through extensive wind tunnel testing and can effectively disrupt the airflow boundary layer. The guide grooves 9 extend spirally along the length of the fins 8. When the airflow blown by the fan 4 passes over the fins 8, the wavy structure causes vertical disturbance in the airflow, while the spiral guide grooves 9 guide the airflow to form a spiral flow in the horizontal direction. The combination of these two factors significantly increases the contact area and contact time between the airflow and the fins 8. Tests show that compared to traditional straight fins, the heat exchange capacity of the heat dissipation module 3 using this structure is increased by more than 35% per unit volume.

[0031] An integrated air guide plate 10 is provided around the heat dissipation module 3, forming a guiding angle with the air outlet of the fan 4. The integrated air guide plate 10 includes a main air guide plate 11 and a secondary air guide plate 12. The main air guide plate 11 is perpendicular to the surface of the heat dissipation module 3, and the secondary air guide plate 12 forms a 30°-45° angle with the main air guide plate 11. When the fan 4 is running, the airflow first passes through the main air guide plate 11, which guides the main airflow vertically to the central area of ​​the heat dissipation module 3, ensuring sufficient cooling for the core components. The secondary air guide plate 12 guides part of the airflow to the edge area of ​​the heat dissipation module 3 at a 30°-45° angle, eliminating airflow blind spots. Actual testing shows that this airflow structure improves the surface wind speed uniformity of the heat dissipation module 3 to 92%, effectively improving the overall heat dissipation efficiency.

[0032] The first cooling channel 5 and the second cooling channel 6 are arranged in parallel, with the cross-sectional area of ​​the first cooling channel 5 being 1.5-2 times that of the second cooling channel 6. This parallel dual-channel design allows the coolant to form a dual circulation path within the heat dissipation module 3, without interference between the two channels. The larger cross-sectional area of ​​the first cooling channel 5 allows for more coolant to flow slowly under low load, fully absorbing heat; the smaller cross-sectional area of ​​the second cooling channel 6 increases the coolant flow rate under high load, enhancing heat dissipation capacity. The two channels work together to significantly improve the uniformity of heat dissipation.

[0033] The wave-shaped fins 8 have a crest spacing of 2-3 mm and a wave height of 0.8-1.2 mm, and the guide grooves 9 extend spirally along the length of the fins 8. The fins 8 are made of high thermal conductivity aluminum alloy, with a thermal conductivity of 200-230 W / (m·K), providing a good foundation for efficient heat dissipation. The surface is coated with a nano-ceramic coating with a thickness of approximately 5-10 μm. This coating not only further reduces thermal resistance but also possesses excellent wear resistance and corrosion resistance, maintaining good heat dissipation performance even in complex automotive operating environments.

[0034] The heat dissipation module 3 is equipped with a temperature sensor 13, which is electrically connected to the three-way valve 7. The temperature sensor 13 is a high-precision platinum resistance temperature sensor with an accuracy of ±0.1℃, which can monitor temperature changes at different locations inside the heat dissipation module 3 in real time and accurately. Once an abnormal temperature is detected, a signal is immediately transmitted to the three-way valve 7, which can switch the coolant channel and adjust the flow rate within 0.5 seconds, realizing intelligent heat dissipation control.

[0035] The fins 8 are made of high thermal conductivity aluminum alloy and coated with a nano-ceramic coating. In terms of manufacturing process, the high thermal conductivity aluminum alloy fins 8 are produced through extrusion molding to ensure dimensional accuracy and surface quality; the nano-ceramic coating is applied using magnetron sputtering technology to ensure coating uniformity and bonding strength. This combined structure allows the fins 8 to possess high thermal conductivity while effectively resisting corrosion from dust, acids, alkalis, and other contaminants, extending the service life of the heat sink.

[0036] The heat dissipation module 3 has a thin aluminum plate 14 bolted to one side, and guide plates 10 are evenly distributed on the outer side of the thin aluminum plate 14. The fan 4 is bolted to the guide plate 10 and fixed to one side of the heat dissipation module 3. The thin aluminum plate 14 is approximately 1-1.5mm thick and is tightly connected to the heat dissipation module 3 by precision-machined bolts, which not only enhances the structural strength of the heat dissipation module 3 but also assists in heat dissipation. A sealing strip is used to seal the guide plate 10 and the thin aluminum plate 14 to prevent airflow leakage. The fan 4 is fixed to the guide plate 10 with high-strength bolts to ensure a stable connection between the fan 4 and the guide plate 10 under vibration during vehicle operation, ensuring stable airflow transmission.

[0037] Both the inlet manifold 1 and the outlet manifold 2 are equipped with pressure sensors 15. The pressure sensors 15 are piezoresistive pressure sensors with a measurement accuracy of 0.5%FS, capable of real-time monitoring of coolant pressure changes in the pipeline. When abnormal pressure fluctuations occur, such as excessively high pressure indicating pipeline blockage or excessively low pressure indicating leakage, the pressure sensor 15 will immediately feed the signal back to the vehicle's thermal management system. The system can then promptly issue an alarm and take appropriate measures to ensure the stable operation of the coolant circulation system and prevent heat dissipation failure due to abnormal pressure.

[0038] Specifically, during operation, the coolant in the main manifold 1 is distributed to the first cooling channel 5 and the second cooling channel 6 via the three-way valve 7. When the vehicle is under low load, the temperature sensor 13 detects that the temperature of the cooling module 3 is low, and the three-way valve 7 prioritizes directing most of the coolant into the first cooling channel 5, which has a larger cross-sectional area, to achieve initial heat dissipation through low-speed flow. Under high load, the temperature sensor 13 detects localized high temperatures, and the three-way valve 7 quickly switches to allow more coolant to flow into the second cooling channel 6, which has a smaller cross-sectional area. By increasing the flow rate, convective heat transfer is enhanced, precisely addressing the heat dissipation needs under different operating conditions.

[0039] The wave-shaped fins 8 and spiral guide grooves 9 on the surface of the heat dissipation module 3 work together. The wave-shaped structure disturbs the airflow in the vertical direction, while the spiral guide grooves 9 guide the airflow in a horizontal spiral flow, effectively breaking the airflow boundary layer and increasing the contact area and time between the airflow and the fins 8. Compared with traditional fins, the heat transfer per unit volume is increased by more than 35%. At the same time, the fins 8 are made of high thermal conductivity aluminum alloy (thermal conductivity 200-230W / (m・K)), and the surface nano-ceramic coating further reduces thermal resistance and improves thermal conductivity efficiency.

[0040] The integrated air deflector 10, with its main air deflector 11 and secondary air deflector 12, rationally distributes the airflow blown out by the fan 4. The main air deflector 11 vertically guides the main airflow to the center of the heat dissipation module 3, while the secondary air deflector 12 guides the secondary airflow to the edge area at an angle of 30°-45°, eliminating airflow blind spots and improving the surface wind speed uniformity of the heat dissipation module 3 to 92%, ensuring that all parts receive sufficient cooling.

[0041] Temperature sensor 13 (accuracy ±0.1℃) monitors the temperature of heat dissipation module 3 in real time. If an anomaly occurs, it controls the three-way valve 7 to adjust the coolant flow rate within 0.5 seconds. Pressure sensors 15 (accuracy 0.5%FS) on the inlet manifold 1 and outlet manifold 2 monitor the coolant pressure. If an anomaly occurs, they provide feedback to the thermal management system for alarm and handling. Furthermore, a 1-1.5mm thin aluminum plate 14 is added to heat dissipation module 3 to enhance structural strength and assist in heat dissipation. The guide plate 10 is sealed to the thin aluminum plate 14, and the fan 4 is securely fixed, ensuring stable airflow transmission under automotive vibration conditions and guaranteeing continuous and efficient radiator operation.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new energy vehicle radiator with a dual-channel heat dissipation structure, comprising an inlet manifold (1), an outlet manifold (2), a heat dissipation module (3), and a fan (4), characterized in that: The heat dissipation module (3) is provided with a first cooling channel (5) and a second cooling channel (6) that are independent of each other. The first cooling channel (5) and the second cooling channel (6) are connected to the liquid inlet manifold (1) through a three-way valve (7). The heat dissipation module (3) has wavy fins (8) on its surface, and the fins (8) have flow guide grooves (9) on their sides. An integrated guide plate (10) is provided around the heat dissipation module (3), and the guide plate (10) forms a guide angle with the air outlet of the fan (4).

2. The new energy vehicle radiator with a dual-channel heat dissipation structure according to claim 1, characterized in that: The first cooling channel (5) and the second cooling channel (6) are arranged in parallel, and the cross-sectional area of ​​the first cooling channel (5) is 1.5-2 times that of the second cooling channel (6).

3. A new energy vehicle radiator with a dual-channel heat dissipation structure according to claim 1, characterized in that: The wave crest spacing of the wave-shaped fin (8) is 2-3 mm, the wave height is 0.8-1.2 mm, and the guide groove (9) extends spirally along the length of the fin (8).

4. A new energy vehicle radiator with a dual-channel heat dissipation structure according to claim 1, characterized in that: The integrated flow guide plate (10) includes a main flow guide plate (11) and a secondary flow guide plate (12). The main flow guide plate (11) is perpendicular to the surface of the heat dissipation module (3), and the secondary flow guide plate (12) forms an angle of 30°-45° with the main flow guide plate (11).

5. A new energy vehicle radiator with a dual-channel heat dissipation structure according to claim 1, characterized in that: The heat dissipation module (3) is equipped with a temperature sensor (13), which is electrically connected to the three-way valve (7).

6. A new energy vehicle radiator with a dual-channel heat dissipation structure according to claim 1, characterized in that: The fins (8) are made of high thermal conductivity aluminum alloy and are coated with a nano-ceramic coating.

7. A new energy vehicle radiator with a dual-channel heat dissipation structure according to claim 1, characterized in that: The heat dissipation module (3) has a thin aluminum plate (14) attached to one side by bolts, and the guide plate (10) is evenly arranged on the outer side of the thin aluminum plate (14). The fan (4) is fixed to one side of the heat dissipation module (3) by bolts and the guide plate (10).

8. A new energy vehicle radiator with a dual-channel heat dissipation structure according to claim 1, characterized in that: Pressure sensors (15) are installed in both the inlet manifold (1) and the outlet manifold (2).

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