Brake cooling system, vehicle body assembly and vehicle

Abstract

The application provides a brake cooling system, a vehicle body assembly and a vehicle, and relates to the technical field of vehicle parts.The brake cooling system comprises a brake cooling air pipe, the brake cooling air pipe is located at the rear part of a cooling and heat dissipation module, the brake cooling air pipe has an air inlet and a first air outlet, the air inlet faces a fan of the cooling and heat dissipation module, and the first air outlet faces a brake disc.The fan introduces the airflow around the cooling and heat dissipation module into the brake cooling air pipe, and guides the airflow to the vicinity of the brake disc through the brake cooling air pipe, so that the cooling and heat dissipation of the brake disc are realized; moreover, the airflow heated by the cooling and heat dissipation module of the vehicle is used in the brake cooling air pipe, the total air inlet area of the front end of the vehicle can be reduced, the air resistance of the vehicle is reduced, and the energy consumption of the vehicle is reduced; moreover, one end of the brake cooling air pipe faces the fan, so that the fan noise can be absorbed by the brake cooling air pipe, and the quietness in the vehicle is improved; in addition, the brake cooling air pipe is located at the rear part of the cooling and heat dissipation module, and can be hidden.

Description

Technical Field

[0001] This invention relates to the field of automotive parts, and more specifically, to a brake cooling system, a body assembly, and an automobile. Background Technology

[0002] As the demands for driving performance increase, braking performance is receiving more and more attention. Currently, car brakes typically use disc brakes. Under extreme conditions such as repeated braking by the driver, the temperature of the brake disc will continuously rise, the friction of the friction pads will decrease, and brake fade will occur.

[0003] To prevent brake discs from overheating, related technologies employ the addition of brake cooling ducts. These ducts are located on one side of the cooling module, with one end extending forward to the front of the vehicle, flush with the grille, and the other end extending rearward to the vicinity of the brake discs. This draws a portion of the air intake from the front of the vehicle to the brake discs, thus cooling them. However, this approach has several drawbacks. First, because both the brake cooling ducts and the grille directly draw air from the front of the vehicle, the overall air intake area at the front is large, resulting in increased wind resistance, which affects fuel consumption, reduces the driving range of electric vehicles, and makes the ducts visible, impacting the vehicle's aesthetics. Summary of the Invention

[0004] The present invention aims to solve the technical problem in the related art that the setting of brake cooling air ducts increases the wind resistance of automobiles, affecting the energy consumption and external appearance of automobiles.

[0005] In a first aspect, the present invention provides a brake cooling system, including a brake cooling duct, the brake cooling duct being located at the rear of a cooling and heat dissipation module, the brake cooling duct having an air inlet and a first air outlet, the air inlet facing the fan of the cooling and heat dissipation module, and the first air outlet facing the brake disc.

[0006] Optionally, the brake cooling duct includes a duct body and cooling branch pipes. One end of the duct body is provided with the air inlet. Two cooling branch pipes are located on both sides of the duct body, and one end of each cooling branch pipe is connected to the duct body. The other ends of each cooling branch pipe pass through the left and right wheel covers of the vehicle and form the first air outlets. The two first air outlets are respectively directed toward the corresponding brake discs.

[0007] Optionally, the cooling branch pipe has a tapering structure from one end near the pipe body toward the direction away from the pipe body;

[0008] And / or, the distance between the two cooling branches gradually increases from the end closer to the pipe body toward the direction away from the pipe body.

[0009] Optionally, the brake cooling system further includes a shielding device, wherein the pipe body has a second air outlet at one end opposite to the air inlet, and the shielding device is movably installed at the second air outlet and is used to shield or open the second air outlet.

[0010] Optionally, the shielding device includes a plurality of parallel grille blades, each of which is rotatably mounted at the second air outlet.

[0011] Optionally, the brake cooling system further includes a drive mechanism, which is drivenly connected to the shielding device and is used to drive the shielding device to move relative to the second air outlet.

[0012] Optionally, the brake cooling system further includes a controller, a second pressure sensor, and a brake disc temperature sensor. The first pressure sensor is used to detect the air pressure at the rear of the fan, the second pressure sensor is used to detect the air pressure at the first air outlet, and the brake disc temperature sensor is used to detect the temperature of the brake disc. The controller is communicatively connected to the drive mechanism and is also communicatively connected to at least one of the first pressure sensor, the second pressure sensor, the brake disc temperature sensor, the vehicle ABS system, the pedal sensor, the vehicle speed sensor, and the fan speed sensor. The controller is used to cause the drive mechanism to drive the blocking device to operate based on the signal given by at least one of the first pressure sensor, the second pressure sensor, the brake disc temperature sensor, the vehicle ABS system, the pedal sensor, the vehicle speed sensor, and the fan speed sensor.

[0013] Secondly, the present invention also proposes a vehicle body component, including a cooling and heat dissipation module and the aforementioned brake cooling system, wherein the cooling and heat dissipation module includes a fan, and the brake cooling duct of the brake cooling system is located at the rear of the fan.

[0014] Optionally, the fan includes a fan mounting plate and fan blades. The fan mounting plate is provided with mounting holes, and the fan blades are installed in the mounting holes. The fan mounting plate abuts against one end of the brake cooling duct with an air inlet along the circumferential edge of the mounting holes.

[0015] Thirdly, the present invention also proposes an automobile comprising the aforementioned body components.

[0016] The brake cooling system, body components, and automobile of the present invention have at least the following advantages compared to related technologies:

[0017] A cooling module typically includes a radiator and a fan. The radiator is connected to the cooling pipes of the engine and other related equipment. High-temperature coolant in the cooling pipes enters the radiator. Airflow entering through the intake grille is cooled by the fan as it passes through the radiator, exchanging heat to cool the engine and other equipment. Since the airflow temperature after heat exchange in the cooling module rises to around 80°C, far lower than the extreme brake disc temperature (above 600°C), the brake cooling duct's inlet faces the cooling module's fan, and its first outlet faces the brake disc. The fan's rotation draws airflow from around the cooling module into the brake cooling duct from the inlet and out of the first outlet towards the brake disc, effectively cooling the brake disc and preventing it from overheating. This invention addresses the issue of brake fade, extending the lifespan of the brake discs and braking system, and reducing maintenance costs. Furthermore, compared to extending the brake cooling duct to be flush with the grille to directly draw air from the front of the vehicle, the brake cooling duct in this invention is located at the rear of the cooling module. It utilizes the airflow heated by the cooling module, reducing the total air intake area at the front of the vehicle, lowering wind resistance, reducing energy consumption, and increasing the driving range of electric vehicles. Moreover, unlike fan noise which is transmitted directly through the air, one end of the brake cooling duct faces the fan, allowing fan noise to be absorbed, improving cabin quietness. Additionally, the entire brake cooling duct is located at the rear of the cooling module and is virtually invisible from the outside of the vehicle, enhancing the aesthetics of the exterior design. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the vehicle body component according to an embodiment of the present invention;

[0019] Figure 2 This is a structural schematic diagram of the vehicle body assembly from another perspective according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the brake cooling duct structure according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the brake cooling duct from another perspective, according to an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the fan structure according to an embodiment of the present invention;

[0023] Figure 6 This is a control principle diagram of the braking cooling system according to an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Brake cooling duct; 11. Duct body; 111. Air inlet; 112. Second air outlet; 12. Cooling branch pipe; 121. First air outlet; 2. Shielding device; 21. Grille blade; 3. Controller; 41. First pressure sensor; 42. Second pressure sensor; 43. Brake disc temperature sensor; 44. Automotive ABS system; 45. Pedal sensor; 46. Vehicle speed sensor; 47. Fan speed sensor; 5. Cooling and heat dissipation module; 51. Fan; 511. Fan mounting plate; 512. Fan blade; 513. Mounting hole; 52. Radiator; 53. Air guide cover; 6. Brake disc; 7. Wheel cover; 8. Wheel; 9. Drive mechanism. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fitting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] In addition, it should be noted that in the description of the present invention, terms such as "upper," "lower," "front," and "rear" used to indicate orientation in various embodiments are only for simplifying the description of the positional relationships based on the accompanying drawings and do not mean that the elements and devices referred to must be operated in accordance with the specific orientation and limited operation, method, and structure in the specification. Such directional terms do not constitute a limitation on the present invention.

[0029] This paper establishes an XYZ coordinate system, where the X-axis represents the front-to-back direction of the vehicle, with the positive direction of the X-axis representing the front and the negative direction representing the rear; the Y-axis represents the left-to-right direction, with the positive direction representing the right and the negative direction representing the left; and the Z-axis represents the vertical direction, with the positive direction representing the top and the negative direction representing the bottom. It should be noted that the aforementioned X, Y, and Z-axis representations are for ease of description and simplification of the invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0030] like Figures 1-4As shown, a brake cooling system according to an embodiment of the present invention includes a brake cooling duct 1, which is located at the rear of a cooling and heat dissipation module 5. The brake cooling duct 1 has an air inlet 111 and a first air outlet 121. The air inlet 111 faces the fan 51 of the cooling and heat dissipation module 5, and the first air outlet 121 faces the brake disc 6.

[0031] Specifically, the cooling and heat dissipation module 5 is located behind the car's air intake grille. The module includes a fan 51 and a radiator 52. The radiator 52 is connected to the cooling pipes of the engine and other related equipment. High-temperature coolant in the cooling pipes enters the radiator 52. Airflow entering from the air intake grille flows over the surface of the radiator 52 under the action of the fan 51 to exchange heat, thereby cooling the engine and other equipment. The airflow temperature after heat exchange through the cooling and heat dissipation module 5 can rise to approximately 80°C. In normal urban driving, with frequent but light braking, the brake disc 6 temperature can rise to 200-300°C. During emergency braking at high speeds, or frequent braking on continuous downhill sections of winding mountain roads, the brake disc 6 temperature can rise to 600-800°C, and in extreme cases, even exceed 1000°C. This means that although the airflow temperature after heat exchange through the cooling and heat dissipation module 5 increases, it is still much lower than the brake disc 6 temperature during frequent braking, resulting in a significant temperature difference. Therefore, the airflow heated by the cooling and heat dissipation module can be used to cool the brake disc 6.

[0032] The brake disc 6 can be mounted on the front wheel 8. The brake cooling duct 1 can be of any shape and is generally arranged along the front and rear of the car. The air inlet 111 at the front end faces the fan 51, and the first air outlet 121 at the rear end faces the brake disc 6. The fan 51 can introduce the airflow around the cooling heat dissipation module 5 into the air inlet 111 of the brake cooling duct 1, and then blow it out from the first air outlet 121.

[0033] In this embodiment, the rotation of fan 51, while improving the heat exchange efficiency of radiator 52, also causes the airflow around the cooling module 5 to enter the brake cooling duct 1 from the air inlet 111 and flow from the first air outlet 121 of the brake cooling duct 1 to the vicinity of the brake disc 6, thereby achieving cooling of the brake disc 6, avoiding heat fade of the brake disc 6, extending the service life of the brake disc 6, i.e., the braking system, and reducing maintenance costs; moreover, compared to extending the brake cooling duct 1 to be flush with the air intake grille to directly draw air from the front of the vehicle, the brake cooling duct 1 in this invention is located in the cold... The rear of the cooling module 5 utilizes the airflow heated by the cooling module 5, which reduces the total air intake area at the front of the car, lowers wind resistance, reduces energy consumption, reduces fuel consumption, and increases the driving range of electric vehicles. Moreover, compared to the noise of the fan 51 being transmitted directly through the air, one end of the brake cooling duct 1 faces the fan 51, allowing the noise of the fan 51 to be absorbed by the brake cooling duct 1, improving the quietness inside the car. In addition, the entire brake cooling duct 1 is located at the rear of the cooling module 5 and is basically invisible from the outside of the car, which can improve the aesthetics of the car's exterior design.

[0034] like Figures 3-4 As shown, optionally, the brake cooling duct 1 includes a duct body 11 and cooling branch pipes 12. One end of the duct body 11 is provided with the air inlet 111. The two cooling branch pipes 12 are respectively located on both sides of the duct body 11, and one end of the two cooling branch pipes 12 is respectively connected to the duct body 11. The other end of the two cooling branch pipes 12 respectively passes through the left and right wheel covers 7 of the car and forms the first air outlet 121. The two first air outlets 121 are respectively facing the corresponding brake discs 6.

[0035] Specifically, the front end of the pipe body 11 is provided with an air inlet 111, which is aligned with the fan 51. One end of each of the two cooling branch pipes 12 is connected to the pipe body 11, and the other end passes through the left and right wheel arches 7 of the front row, forming a first air outlet 121. This allows the first air outlets 121 of the two cooling branch pipes 12 to face the left and right brake discs 6 respectively, achieving simultaneous cooling of the two brake discs 6. The cooling branch pipes 12 can be fixed to the wheel arches 7 to prevent shaking during driving. The cooling branch pipes 12 can be integrally formed with the pipe body 11.

[0036] The two cooling branch pipes 12 are located on the left and right sides of the pipe body 11, that is, on both sides of the Y direction. On the one hand, this avoids interference between the two cooling branch pipes 12, and on the other hand, it allows the two cooling branch pipes 12 to be closer to the corresponding brake disc 6.

[0037] like Figure 3As shown, optionally, the cooling branch pipe 12 has a tapering structure from the end near the pipe body 11 toward the direction away from the pipe body 11. That is, the cross-sectional size of the cooling branch pipe 12 gradually decreases from the end near the air inlet 111 toward the end of the first air outlet 121, so that the airflow entering the brake cooling duct 1 from the air inlet 111 can be accelerated in the cooling branch pipe 12 and then blown out from the first air outlet 121, impacting the brake disc 6 with a relatively high-speed airflow. Based on the principle of forced convection heat transfer, the brake disc 6 descends rapidly, improving the cooling efficiency of the brake disc 6.

[0038] Optionally, the distance between the two cooling branch pipes 12 gradually increases from the end closer to the pipe body 11 toward the end farther away from the pipe body 11. That is, the two cooling branch pipes 12 can be inclined pipes that are respectively inclined to the left and right relative to the X-axis. Since the left and right wheel covers 7 are located on the left and right rear sides of the fan 51, respectively, and the pipe body 11 is located behind the fan 51 and directly aligned with the fan 51, the two cooling branch pipes 12 can be inclined to the left and right sides relative to the X-axis to facilitate the two cooling branch pipes 12 to smoothly guide the airflow in the pipe body 11 to the brake discs 6 on both sides, so as to achieve cooling of the brake discs 6.

[0039] like Figure 2 and Figure 4 As shown, optionally, the brake cooling system further includes a shielding device 2. The pipe body 11 has a second air outlet 112 at one end opposite to the air inlet 111. The shielding device 2 is movably installed at the second air outlet 112 and is used to shield or open the second air outlet 112.

[0040] Specifically, the front end of the pipe body 11 is provided with an air inlet 111, and the rear end of the pipe body 11 is provided with a second air outlet 112. The two cooling branch pipes 12 are located on the left and right sides of the pipe body 11, that is, the second air outlet 112 is located between the two cooling branch pipes 12. The air blown out from the second air outlet 112 of the brake cooling air pipe 1 is directed towards the rear of the car, and the air blown out from the two first air outlets 121 of the brake cooling air pipe 1 is directed towards the left and right wheels 8, so as to realize the orderly airflow in the brake cooling air pipe 1 and avoid airflow turbulence.

[0041] A shielding device 2 is provided at the second air outlet 112. The shielding device 2 can be used to block or open the second air outlet 112 as needed to adjust the airflow distribution between the first air outlet 121 and the second air outlet 112. The shielding device 2 blocking the second air outlet 112 includes two situations: the shielding device 2 completely blocks the second air outlet 112, or partially blocks the second air outlet 112.

[0042] When the fan 51 operates at a high speed, there is a large amount of airflow in the brake cooling duct 1. Opening the second air outlet 112 can prevent excessive air pressure in the brake cooling duct 1 due to delayed exhaust from the first air outlet 121, which would affect the performance of the fan 51. Additionally, when the brake disc 6 does not require cooling, the second air outlet 112 can be opened to allow the airflow entering the brake cooling duct 1 to exit more quickly, reducing the impact of wind resistance on the entire vehicle. When the brake disc 6 requires cooling, the second air outlet 112 can be partially or completely blocked. While maintaining the same airflow at the inlet 111, this increases the airflow at the first air outlet 121, achieving rapid cooling of the brake disc 6. The degree of opening of the second air outlet 112 can be flexibly controlled according to the heat dissipation needs of the brake disc 6.

[0043] like Figure 4 As shown, optionally, the shielding device 2 includes a plurality of parallel grille blades 21, each of which is rotatably mounted at the second air outlet 112.

[0044] Specifically, the second air outlet 112 can be rectangular, with grille blades 21 inside. Multiple grille blades 21 are spaced apart and arranged in parallel along the Y direction. Each grille blade 21 is rotatably installed at the second air outlet 112. Not only can the opening degree of the second air outlet 112 be adjusted by rotating the grille blades 21, thereby controlling the airflow from the second air outlet 112, but the multiple grille blades 21 also divide the second air outlet 112 into multiple small sections. When the multiple grille blades 21 rotate to adjust the airflow of the second air outlet 112, the airflow from the second air outlet 112 becomes more uniform, avoiding noise caused by airflow turbulence, and making the entire brake cooling system operate more quietly.

[0045] Optionally, the braking cooling system further includes a drive mechanism 9, which is drivenly connected to the shielding device 2 and used to drive the shielding device 2 to move relative to the second air outlet 112. When the shielding device 2 uses grille blades 21, multiple grille blades 21 can be connected to a linkage mechanism. The drive mechanism 9 is drivenly connected to the linkage mechanism, and the drive mechanism 9 can be a drive motor. The drive mechanism 9 drives the linkage mechanism to rotate the grille blades 21 through the linkage mechanism, thereby opening the second air outlet 112. By controlling the rotation angle of the grille blades 21, the opening degree or the degree of shielding of the second air outlet 112 can be controlled. When the shielding device 2 uses a shield, the drive mechanism 9 can drive the shield to move to open or shield the second air outlet 112. By using the drive mechanism 9 to drive the shielding device 2 to control the opening degree of the second air outlet 112, the degree of automation is higher and the use is more convenient.

[0046] like Figure 6As shown, optionally, the brake cooling system further includes a controller 3, a first pressure sensor 41, a second pressure sensor 42, and a brake disc temperature sensor 43. The first pressure sensor 41 is used to detect the air pressure at the rear of the fan 51, the second pressure sensor 42 is used to detect the air pressure at the first air outlet 121, and the brake disc temperature sensor 43 is used to detect the temperature of the brake disc 6. The controller 3 is communicatively connected to the drive mechanism 9, and the controller 3 is also communicatively connected to at least one of the first pressure sensor 41, the second pressure sensor 42, the brake disc temperature sensor 43, the vehicle ABS system 44, the pedal sensor 45, the vehicle speed sensor 46, and the fan speed sensor 47. The controller 3 is used to cause the drive mechanism 9 to drive the blocking device 2 to operate based on the signal given by at least one of the first pressure sensor 41, the second pressure sensor 42, the brake disc temperature sensor 43, the vehicle ABS system 44, the pedal sensor 45, the vehicle speed sensor 46, and the fan speed sensor 47.

[0047] Specifically, the first pressure sensor 41 can be installed at the rear of the fan 51, or at the air inlet 111 of the brake cooling duct 1, to facilitate the detection of air pressure at the rear of the fan 51; the second pressure sensor 42 can be installed at the first air outlet 121 to facilitate the detection of air pressure at the first air outlet 121; the brake disc temperature sensor 43 is installed on the brake disc 6 to detect the temperature of the brake disc 6 in real time. The automotive ABS system 44, pedal sensor 45, vehicle speed sensor 46, and fan speed sensor 47 are already present in existing vehicles. The automotive ABS system 44 is an anti-lock braking system that can issue emergency braking signals. The pedal sensor 45 can detect the frequency of the driver's pedal press, the vehicle speed sensor 46 can detect the vehicle speed, and the fan speed sensor 47 is used to detect the rotational speed of the fan 51.

[0048] When controller 3 receives an emergency braking signal, a signal indicating high pedal depress frequency, a signal indicating high vehicle speed, or a signal indicating high brake disc temperature, it determines that brake disc 6 may experience brake fade. In this case, it needs to prepare to reduce the opening of the second air outlet 112 to increase the airflow of the first air outlet 121, so that brake disc 6 can cool down quickly. In addition, based on the continuous braking conditions on mountain roads identified by the intelligent driving strategy, such as continuous downhill sections, it can also determine that brake disc 6 may experience brake fade and make corresponding preparations.

[0049] When the controller 3 receives a signal that the fan 51 has a high speed, or a signal that the pressure at the rear of the fan 51 is high, or a signal that the pressure at the first air outlet 121 is high, it determines that the airflow in the brake cooling duct 1 is high and the first air outlet 121 cannot discharge in time. At this time, it can prepare to increase the opening of the second air outlet 112 to exhaust the air through the second air outlet 112, so that the airflow in the brake cooling duct 1 can be quickly discharged to the external environment.

[0050] like Figures 1-2 As shown, another embodiment of the present invention provides a vehicle body component, including a cooling and heat dissipation module 5 and the aforementioned brake cooling system. The cooling and heat dissipation module 5 includes a fan 51, and the brake cooling duct 1 of the brake cooling system is located at the rear of the fan 51. The advantages of this vehicle body component compared to related technologies are the same as those of the aforementioned brake cooling system, and will not be repeated here.

[0051] like Figure 5 As shown, optionally, the fan 51 includes a fan mounting plate 511 and a fan blade 512. The fan mounting plate 511 is provided with a mounting hole 513. The fan blade 512 is installed in the mounting hole 513. The fan mounting plate 511 abuts against one end of the brake cooling air duct 1 with an air inlet 111 along the circumferential edge of the mounting hole 513.

[0052] Specifically, the fan mounting plate 511 is located on the YZ plane. The fan mounting plate 511 has a mounting hole 513 that runs through it along its thickness direction, i.e., the X direction. The fan mounting plate 511 abuts against the end of the brake cooling duct 1 with an air inlet 111 along the circumferential edge of the mounting hole 513. That is, the mounting hole 513 and the air inlet 111 are aligned and connected, so that the airflow generated by the fan blade 512 in the mounting hole 513 during rotation can enter the brake cooling duct 1 better, thereby improving the air guiding effect of the brake cooling duct 1.

[0053] like Figure 1As shown, optionally, the cooling and heat dissipation module 5 further includes a radiator 52 and an air guide shroud 53. The air guide shroud 53 is located on the side of the fan 51 away from the brake cooling duct 1. One end of the air guide shroud 53 extends towards the vehicle's air intake grille, and the other end of the air guide shroud 53 is positioned between the radiator 52 and the fan 51. The front opening of the air guide shroud 53 is a narrow rectangle to match the shape of the air intake grille. The air guide shroud 53 guides the airflow entering through the air intake grille to the radiator 52. The cross-sectional size of the air guide shroud 53 gradually increases from front to back, which reduces the flow resistance of the airflow within the air guide shroud 53. The rear opening of the air guide shroud 53 is a large square to match the shape of the radiator 52, allowing the airflow blown out from the air guide shroud 53 to be more evenly distributed on the surface of the radiator 52, ensuring effective heat dissipation. The heated airflow after heat exchange with the radiator 52 is blown by the fan 51 towards the brake cooling duct 1 to cool the brake disc 6.

[0054] Another embodiment of the present invention provides an automobile including the aforementioned body components. The advantages of this automobile compared to related technologies are the same as those of the aforementioned body components, and will not be repeated here.

[0055] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A brake cooling system, characterized in that, Includes a brake cooling duct (1), which is located at the rear of the cooling and heat dissipation module (5). The brake cooling duct (1) has an air inlet (111) and a first air outlet (121). The air inlet (111) faces the fan (51) of the cooling and heat dissipation module (5), and the first air outlet (121) faces the brake disc (6). The brake cooling duct (1) includes a duct body (11) and cooling branch pipes (12). One end of the duct body (11) is provided with the air inlet (111). The two cooling branch pipes (12) are located on both sides of the duct body (11), and one end of the two cooling branch pipes (12) is connected to the duct body (11). The other end of the two cooling branch pipes (12) passes through the left and right wheel covers (7) of the car and forms the first air outlet (121). The two first air outlets (121) face the corresponding brake discs (6). It also includes a shielding device (2), and the pipe body (11) has a second air outlet (112) at one end opposite to the air inlet (111). The shielding device (2) is movably installed at the second air outlet (112) and is used to shield or open the second air outlet (112).

2. The brake cooling system according to claim 1, characterized in that, The cooling branch pipe (12) has a tapering structure from one end close to the pipe body (11) toward the direction away from the pipe body (11); And / or, the distance between the two cooling branch pipes (12) gradually increases from the end closer to the pipe body (11) toward the direction away from the pipe body (11).

3. The brake cooling system according to claim 1, characterized in that, The shielding device (2) includes a plurality of parallel grille blades (21), each of which is rotatably mounted at the second air outlet (112).

4. The brake cooling system according to claim 1, characterized in that, The braking cooling system also includes a drive mechanism (9), which is drivenly connected to the shielding device (2) and is used to drive the shielding device (2) to move relative to the second air outlet (112).

5. The brake cooling system according to claim 4, characterized in that, It also includes a controller (3), a first pressure sensor (41), a second pressure sensor (42), and a brake disc temperature sensor (43). The first pressure sensor (41) is used to detect the air pressure at the rear of the fan (51), the second pressure sensor (42) is used to detect the air pressure at the first air outlet (121), and the brake disc temperature sensor (43) is used to detect the temperature of the brake disc (6). The controller (3) is communicatively connected to the drive mechanism (9). The controller (3) is also connected to the first pressure sensor (41), the second pressure sensor (42), and the brake disc temperature sensor (43). The controller (3) is communicatively connected to at least one of the brake disc temperature sensor (43), the automotive ABS system (44), the pedal sensor (45), the vehicle speed sensor (46), and the fan speed sensor (47). The controller (3) is used to drive the shielding device (2) to operate based on the signal given by at least one of the first pressure sensor (41), the second pressure sensor (42), the brake disc temperature sensor (43), the automotive ABS system (44), the pedal sensor (45), the vehicle speed sensor (46), and the fan speed sensor (47).

6. A vehicle body component, characterized in that, The system includes a cooling and heat dissipation module (5) and a brake cooling system as described in any one of claims 1-5. The cooling and heat dissipation module (5) includes a fan (51), and the brake cooling duct (1) of the brake cooling system is located at the rear of the fan (51).

7. The vehicle body assembly according to claim 6, characterized in that, The fan (51) includes a fan mounting plate (511) and fan blades (512). The fan mounting plate (511) is provided with mounting holes (513). The fan blades (512) are installed in the mounting holes (513). The fan mounting plate (511) abuts against one end of the brake cooling duct (1) with an air inlet (111) along the circumferential edge of the mounting holes (513).

8. A car, characterized in that, Includes the body components as described in any one of claims 6-7.

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