Brake cooling system, automobile body assembly and automobile

Abstract

The invention provides a brake cooling system, an automobile body assembly and an automobile, and relates to the technical field of automobile parts, the brake cooling system comprises a brake cooling air pipe, the brake cooling air pipe is located on the rear portion of a cooling heat dissipation module, the brake cooling air pipe is provided with an air inlet and a first air outlet, and the air inlet faces a fan of the cooling heat dissipation module; the first air outlet faces the brake disc. The fan introduces airflow around the cooling heat dissipation module into the brake cooling air pipe, and the airflow is guided to the position near the brake disc through the brake cooling air pipe so as to achieve cooling of the brake disc. Moreover, the brake cooling air pipe utilizes the air flow heated by the automobile cooling heat dissipation module, so that the total air inlet area at the front end of the automobile can be reduced, the automobile wind resistance is reduced, and the automobile energy consumption is reduced; one end of the brake cooling air pipe faces the fan, so that noise of the fan can be absorbed by the brake cooling air pipe, and quietness in the automobile is improved; in addition, the brake cooling air pipe is located on the rear portion of the cooling heat dissipation module, and hidden arrangement can be achieved.

Description

Technical Field

[0001] The present invention relates to the field of automobile parts, and in particular to a brake cooling system, a vehicle body component and an automobile. Background Art

[0002] With the improvement of the demand for automobile driving performance, automobile braking performance has been paid more and more attention. At present, automobile brakes usually use disc brakes. In extreme cases such as the driver repeatedly stepping on the brake pedal, the temperature of the brake disc will continue to rise, the friction of the friction plate will decrease, and brake thermal decay will occur.

[0003] In order to prevent the brake disc from overheating, the relevant technology adopts the method of adding a brake cooling duct. The brake cooling duct is located on one side of the cooling and heat dissipation module in the left and right directions. One end of the brake cooling duct extends toward the front of the car to be flush with the car's air intake grille, and the other end extends toward the rear of the car to the vicinity of the brake disc, so as to guide a part of the air intake at the front end of the car to the vicinity of the brake disc, thereby achieving cooling of the brake disc. On the one hand, since the brake cooling duct and the air intake grille directly quote the airflow at the front end of the car, the total air intake area at the front end of the car is large, resulting in greater wind resistance for the car, affecting the car's energy consumption, increasing fuel consumption, and reducing the cruising range of the electric vehicle. On the other hand, since one end of the brake cooling duct extends to be flush with the car's air intake grille, the brake cooling duct is partially visible, affecting the aesthetics of the car's exterior. Summary of the invention

[0004] The present invention aims to solve the technical problem in the related art that the arrangement of the brake cooling air duct increases the wind resistance of the automobile, thus affecting the energy consumption and the appearance of the automobile.

[0005] In a first aspect, the present invention provides a brake cooling system, comprising a brake cooling air duct, wherein the brake cooling air duct is located at the rear of a cooling and heat dissipation module, and has an air inlet and a first air outlet, wherein the air inlet faces a fan of the cooling and heat dissipation module, and the first air outlet faces a brake disc.

[0006] Optionally, the brake cooling air duct includes a pipe body and a cooling branch pipe, the air inlet is provided at one end of the pipe body, two cooling branches are respectively located on both sides of the pipe body, and one end of the two cooling branches are respectively connected to the pipe body, and the other ends of the two cooling branches respectively penetrate the left and right wheel covers of the automobile and form the first air outlet, and the two first air outlets are respectively facing the corresponding brake discs.

[0007] Optionally, the cooling branch pipe is in a tapered structure from one end close to the pipe body toward a direction away from the pipe body;

[0008] And / or, the distance between the two cooling branches gradually increases from one end close to the tube body toward a direction away from the tube body.

[0009] Optionally, the brake cooling system further comprises a shielding device, the tube body is provided with a second air outlet at an end opposite to the air inlet, the shielding device is movably mounted 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 grille blades parallel to each other, and each of the grille blades is rotatably mounted at the second air outlet.

[0011] Optionally, the brake cooling system further comprises a driving mechanism, which is drivingly 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 also 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 with the drive mechanism, and the controller is also communicatively connected with at least one of the first pressure sensor, the second pressure sensor, the brake disc temperature sensor, the automobile ABS system, the pedal sensor, the vehicle speed sensor and the fan speed sensor. The controller is used to enable the drive mechanism to drive the shielding device to operate according to a signal given by at least one of the first pressure sensor, the second pressure sensor, the brake disc temperature sensor, the automobile ABS system, the pedal sensor, the vehicle speed sensor and the fan speed sensor.

[0013] In a second aspect, the present invention further proposes a vehicle body component, comprising a cooling and heat dissipation module and the above-mentioned brake cooling system, wherein the cooling and heat dissipation module comprises a fan, and the brake cooling air 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 a mounting hole, the fan blades are installed in the mounting hole, and the fan mounting plate abuts against one end of the brake cooling air duct provided with an air inlet along the circumferential edge portion of the mounting hole.

[0015] In a third aspect, the present invention further provides an automobile, comprising the above-mentioned body assembly.

[0016] The brake cooling system, vehicle body assembly and automobile of the present invention have at least the following advantages compared with the related art:

[0017] A cooling and heat dissipation module usually includes a radiator and a fan. The radiator can be interconnected with the cooling pipes of the engine and other related equipment. The high-temperature coolant in the cooling pipe enters the radiator, and the airflow entering from the air intake grille flows through the radiator for heat exchange under the action of the fan to achieve cooling of the engine and other equipment. Since the airflow temperature after heat exchange in the cooling and heat dissipation module rises to about 80°C, which is much lower than the brake disc temperature (above 600°C) in extreme cases, the air inlet of the brake cooling air duct is directed toward the fan of the cooling and heat dissipation module, and the first air outlet of the brake cooling air duct is directed toward the brake disc. The fan is rotated to make the airflow around the cooling and heat dissipation module enter the brake cooling air duct from the air inlet, and flow from the first air outlet of the brake cooling air duct to the vicinity of the brake disc, so as to achieve cooling of the brake disc and avoid the brake disc. The thermal decay phenomenon is prevented, the service life of the brake disc, that is, the brake system, is extended, and the maintenance cost is reduced; moreover, compared with extending the brake cooling air duct to be flush with the air intake grille to directly quote the air intake from the front end of the car, the brake cooling air duct in the present invention is located at the rear of the cooling and heat dissipation module, and utilizes the airflow heated by the cooling and heat dissipation module of the car, which can reduce the total air intake area of ​​the front end of the car, reduce the wind resistance of the car, reduce the energy consumption of the car, reduce fuel consumption, and increase the cruising range of the electric vehicle; and compared with the fan noise being directly transmitted through the air, one end of the brake cooling air duct faces the fan, so that the fan noise can be absorbed by the brake cooling air duct, thereby improving the quietness in the car; in addition, the entire brake cooling air duct is located at the rear of the cooling and heat dissipation module, which is basically invisible from the outside of the car, thereby improving the aesthetics of the car's exterior shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a vehicle body assembly according to an embodiment of the present invention;

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

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

[0021] Figure 4 A schematic structural diagram of a brake cooling air duct from another perspective of an embodiment of the present invention;

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

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

[0024] Description of reference numerals:

[0025] 1. Brake cooling air duct; 11. Pipe body; 111. Air inlet; 112. Second air outlet; 12. Cooling branch pipe; 121. First air outlet; 2. Shielding device; 21. Grille blades; 3. Controller; 41. First pressure sensor; 42. Second pressure sensor; 43. Brake disc temperature sensor; 44. Automobile 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 blades; 513. Mounting hole; 52. Radiator; 53. Air guide cover; 6. Brake disc; 7. Wheel cover; 8. Wheel; 9. Driving mechanism. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "matched" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, it should be noted that in the description of the present invention, it should be noted that the terminology nouns in the various embodiments, such as "upper", "lower", "front", "back" and other words indicating directions, are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the referred elements and devices must be operated in accordance with the specific directions and defined operations and methods and structures in the specification. Such directional nouns do not constitute limitations on the present invention.

[0029] This article establishes an XYZ coordinate system, in which the X-axis represents the front and rear direction of the car, the positive direction of the X-axis represents the front of the car, and the reverse direction of the X-axis represents the rear of the car, the Y-axis represents the left and right direction of the car, the positive direction of the Y-axis represents the right side of the car, and the reverse direction of the Y-axis represents the left side of the car, and the Z-axis represents the up and down direction of the car, the positive direction of the Z-axis represents the top of the car, and the reverse direction of the Z-axis represents the bottom of the car. It should also be noted that the aforementioned X-axis, Y-axis, and Z-axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

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

[0031] Specifically, the cooling and heat dissipation module 5 is located behind the air intake grille of the automobile. The cooling and heat dissipation module 5 includes a fan 51 and a radiator 52. The radiator 52 can be interconnected with the cooling pipe of the engine and other related equipment. The high-temperature coolant in the cooling pipe enters the radiator 52. The airflow entering from the air intake grille flows through the surface of the radiator 52 under the action of the fan 51 to exchange heat, so as to achieve cooling of the engine and other equipment. The airflow temperature after heat exchange by the cooling and heat dissipation module 5 can be increased to about 80°C. In general urban road driving, when the pedal is frequently braked but the force is relatively light, the temperature of the brake disc 6 can be increased to 200-300°C; in emergency braking during high-speed driving, or frequent braking on the downhill section of a continuous winding mountain road, the temperature of the brake disc 6 can be increased to 600-800°C, and even more than 1000°C in extreme cases, that is, although the temperature of the airflow after heat exchange by the cooling and heat dissipation module 5 is increased, it is much lower than the temperature of the brake disc 6 during frequent braking. There is a large temperature difference between the two, and 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 installed on the front wheel 8. The brake cooling air duct 1 can be of any shape and is roughly 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 and heat dissipation module 5 into the air inlet 111 of the brake cooling air duct 1, and then blow it out from the first air outlet 121.

[0033] In this embodiment, the rotation of the fan 51 improves the heat exchange efficiency of the radiator 52, and at the same time, the air flow around the cooling and heat dissipation module 5 enters the brake cooling air duct 1 from the air inlet 111, and flows from the first air outlet 121 of the brake cooling air duct 1 to the vicinity of the brake disc 6, so as to cool the brake disc 6, avoid the thermal decay of the brake disc 6, extend the service life of the brake disc 6, and reduce the maintenance cost; moreover, compared with extending the brake cooling air duct 1 to be flush with the air intake grille to directly use the front air intake of the car, the brake cooling air duct 1 in the present invention is located at the coolant grille. The rear part of the cooling and heat dissipation module 5 utilizes the airflow heated by the cooling and heat dissipation module 5, which can reduce the total air intake area of ​​the front end of the car, reduce the car's wind resistance, reduce the car's energy consumption, reduce fuel consumption, and increase the cruising range of the electric vehicle; and compared with the fan 51 noise directly transmitted through the air, one end of the brake cooling air duct 1 faces the fan 51, so that the fan 51 noise can be absorbed by the brake cooling air duct 1, thereby improving the quietness of the car; in addition, the entire brake cooling air duct 1 is located at the rear part of the cooling and heat dissipation module 5, and is basically invisible from the outside of the car, which can improve the aesthetics of the car's exterior shape.

[0034] like Figure 3-Figure 4 As shown, optionally, the brake cooling air duct 1 includes a tube body 11 and a cooling branch pipe 12, one end of the tube body 11 is provided with the air inlet 111, two cooling branches 12 are respectively located on both sides of the tube body 11, and one end of the two cooling branches 12 is respectively connected to the tube body 11, and the other ends of the two cooling branches 12 respectively penetrate the left and right wheel covers 7 of the automobile and form the first air outlet 121, and the two first air outlets 121 are respectively facing the corresponding brake discs 6.

[0035] Specifically, the front end of the tube body 11 is provided with an air inlet 111, which is aligned with the fan 51. One end of the two cooling branches 12 is respectively connected to the tube body 11, and the other end passes through the left and right wheel covers 7 of the front row, and forms a first air outlet 121, so that the first air outlets 121 of the two cooling branches 12 can be respectively oriented to the left and right brake discs 6, so as to realize simultaneous cooling of the two brake discs 6. The cooling branch 12 can be fixed to the wheel cover 7 to avoid shaking during driving, and the cooling branch 12 can be designed as an integral part of the tube body 11.

[0036] The two cooling branches 12 are located on the left and right sides of the tube body 11 , that is, on both sides in the Y direction, which, on the one hand, avoids interference between the two cooling branches 12 , and on the other hand, enables the two cooling branches 12 to be closer to the corresponding brake disc 6 .

[0037] like Figure 3As shown, optionally, the cooling branch pipe 12 is in a tapered structure from one end close to the pipe body 11 toward a direction away from the pipe body 11. That is, the cross-sectional size of the cooling branch pipe 12 gradually decreases from one end close to the air inlet 111 toward one end of the first air outlet 121, so that the airflow entering the brake cooling air 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, and the brake disc 6 is impacted by a relatively high-speed airflow, so that the brake disc 6 is quickly lowered based on the principle of forced convection heat exchange, thereby improving the cooling efficiency of the brake disc 6.

[0038] Optionally, the distance between the two cooling branches 12 gradually increases from the end close to the tube body 11 toward the direction away from the tube body 11. That is, the two cooling branches 12 can be inclined tubes that are respectively arranged to be inclined to the left and right relative to the X-axis. Since the left and right wheel covers 7 are respectively located at the left rear side and the right rear side of the fan 51, and the tube body 11 is located behind the fan 51 and is arranged to be aligned with the fan 51, the two cooling branches 12 are respectively arranged to be inclined to the left and right sides relative to the X-axis, so that the two cooling branches 12 can smoothly guide the airflow in the tube body 11 to the brake discs 6 on both sides to achieve cooling of the brake discs 6.

[0039] like Figure 2 and Figure 4 As shown, optionally, the brake cooling system also includes a shielding device 2, the tube body 11 is provided with a second air outlet 112 at an end opposite to the air inlet 111, and 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, an air inlet 111 is provided at the front end of the tube body 11, and a second air outlet 112 is provided at the rear end of the tube body 11, and the two cooling branches 12 are located on the left and right sides of the tube body 11, that is, the second air outlet 112 is located between the two cooling branches 12, and the wind blown out from the second air outlet 112 of the brake cooling air duct 1 is directed toward the rear of the vehicle, and the wind blown out from the two first air outlets 121 of the brake cooling air duct 1 is directed toward the wheels 8 on the left and right sides, thereby achieving orderly blowing of the airflow in the brake cooling air duct 1 and avoiding airflow turbulence.

[0041] The shielding device 2 is provided at the second air outlet 112, and the shielding device 2 can shield or open the second air outlet 112 as needed to adjust the flow distribution of the first air outlet 121 and the second air outlet 112. The shielding device 2 shields the second air outlet 112 in two cases: the shielding device 2 completely shields the second air outlet 112, or partially shields the second air outlet 112.

[0042] When the speed of the fan 51 is relatively high, the airflow in the brake cooling air duct 1 is relatively large, and the second air outlet 112 can be opened to avoid excessive wind pressure in the brake cooling air duct 1 due to the untimely discharge of the first air outlet 121, which affects the performance of the fan 51. In addition, when the brake disc 6 does not need to be cooled, the second air outlet 112 can be opened so that the airflow entering the brake cooling air duct 1 can be discharged faster, reducing the impact of wind resistance on the entire vehicle. When the brake disc 6 needs to be cooled, the second air outlet 112 can be blocked or partially blocked. When the flow rate of the air inlet 111 remains unchanged, the flow rate of the first air outlet 121 is increased to achieve 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 grille blades 21 parallel to each other, and each of the grille blades 21 is rotatably mounted at the second air outlet 112 .

[0044] Specifically, the second air outlet 112 may be rectangular, with grille blades 21 provided therein, and a plurality of grille blades 21 are spaced apart and arranged in parallel along the Y direction, and each grille blade 21 is rotatably installed at the second air outlet 112. Not only can the rotation of the grille blades 21 be used to adjust the opening degree of the second air outlet 112, thereby controlling the amount of air flowing out of the second air outlet 112, but also a plurality of grille blades 21 divide the second air outlet 112 into a plurality of small intervals. When the plurality of grille blades 21 rotate to adjust the flow of the second air outlet 112, the air outlet of the second air outlet 112 is made more uniform, thereby avoiding noise caused by air flow turbulence, and making the operation of the entire brake cooling system quieter.

[0045] Optionally, the brake cooling system further comprises a driving mechanism 9, which is drivingly connected to the shielding device 2 and is used to drive the shielding device 2 to move relative to the second air outlet 112. When the shielding device 2 adopts grille blades 21, a plurality of grille blades 21 may be connected to a connecting rod mechanism, and the driving mechanism 9 is drivingly connected to the connecting rod mechanism. The driving mechanism 9 may be a driving motor, and the driving mechanism 9 drives the connecting rod mechanism to drive the grille blades 21 to rotate through the connecting rod mechanism to open the second air outlet 112, and the degree of opening or shielding of the second air outlet 112 is controlled by controlling the rotation angle of the grille blades 21. When the shielding device 2 adopts a shielding plate, the driving mechanism 9 may drive the shielding plate to move to open or shield the second air outlet 112. By adopting the driving mechanism 9 to drive the shielding device 2 to move to control the degree of opening 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 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, the brake disc temperature sensor 43 is used to detect the temperature of the brake disc 6, the controller 3 is communicatively connected with the drive mechanism 9, the controller 3 is also communicatively connected with at least one of the first pressure sensor 41, the second pressure sensor 42, the brake disc temperature sensor 43, the automobile ABS system 44, the pedal sensor 45, the vehicle speed sensor 46 and the fan speed sensor 47, the controller 3 is used to enable the drive mechanism 9 to drive the shielding device 2 to operate according to a signal given by at least one of the first pressure sensor 41, the second pressure sensor 42, the brake disc temperature sensor 43, the automobile 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 air duct 1, to facilitate the detection of the 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 the 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 automobile ABS system 44, the pedal sensor 45, the vehicle speed sensor 46 and the fan speed sensor 47 are already available on existing vehicles. The automobile ABS system 44 is an anti-lock braking system that can send an emergency braking signal. The pedal sensor 45 can detect the frequency of the driver stepping on the pedal, the vehicle speed sensor 46 can detect the vehicle speed, and the fan speed sensor 47 is used to detect the speed of the fan 51.

[0048] When the controller 3 receives an emergency brake signal, or a signal of a high pedal frequency, or a signal of a high vehicle speed, or a signal of a high brake disc temperature, it is determined that the brake disc 6 may have a brake thermal decay problem. At this time, it is necessary to prepare to reduce the opening of the second air outlet 112 to increase the flow of the first air outlet 121, so that the brake disc 6 can be quickly cooled. In addition, according to the continuous braking conditions on mountain roads identified by the intelligent driving strategy, such as continuous downhill sections, it can be determined that the brake disc 6 may have a brake thermal decay problem, and corresponding preparations can be made.

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

[0050] like Figure 1-Figure 2 As shown, another embodiment of the present invention provides a vehicle body component, including a cooling and heat dissipation module 5 and the above-mentioned brake cooling system, wherein the cooling and heat dissipation module 5 includes a fan 51, and the brake cooling air duct 1 of the brake cooling system is located at the rear of the fan 51. The advantages of the vehicle body component compared with the related art are the same as those of the above-mentioned brake cooling system, and will not be repeated.

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

[0052] Specifically, the fan mounting plate 511 is located in the YZ plane, and is provided with a mounting hole 513 which penetrates along the thickness direction thereof, i.e., the X direction. The circumferential edge portion of the fan mounting plate 511 along the mounting hole 513 abuts against one end of the brake cooling air duct 1 provided with an air inlet 111, i.e., the mounting hole 513 is aligned and connected with the air inlet 111, so that the airflow generated by the fan blades 512 in the mounting hole 513 during the rotation process can better enter the brake cooling air duct 1, thereby improving the wind guiding effect of the brake cooling air duct 1.

[0053] like Figure 1As shown, optionally, the cooling and heat dissipation module 5 further includes a radiator 52 and an air guide 53. The air guide 53 is located on the side of the fan 51 away from the brake cooling air duct 1. One end of the air guide 53 extends toward the automobile air intake grille. The radiator 52 is arranged between the other end of the air guide 53 and the fan 51. The front opening of the air guide 53 is a narrow and long rectangle to match the shape of the air intake grille. The air guide 53 can guide the airflow entering the air intake grille to the radiator 52. The cross-sectional size of the air guide 53 gradually increases from front to back, which can reduce the flow resistance of the airflow in the air guide 53. The rear opening of the air guide 53 is a large square to match the shape of the radiator 52, so that the airflow blown out from the air guide 53 can be more evenly distributed on the surface of the radiator 52 to ensure the heat dissipation effect. The heated airflow after heat exchange in the radiator 52 is blown to the brake cooling air duct 1 by the fan 51 to cool the brake disc 6.

[0054] Another embodiment of the present invention further provides a car, comprising the above-mentioned body assembly. The advantages of the car compared with the related art are the same as those of the above-mentioned body assembly, and will not be described again.

[0055] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A brake cooling system, characterized in that: The invention comprises a brake cooling air duct (1), wherein the brake cooling air duct (1) is located at the rear of a cooling and heat dissipation module (5), and the brake cooling air duct (1) has an air inlet (111) and a first air outlet (121), wherein the air inlet (111) faces a fan (51) of the cooling and heat dissipation module (5), and the first air outlet (121) faces a brake disc (6).

2. The brake cooling system according to claim 1, characterized in that: The brake cooling air duct (1) comprises a tube body (11) and a cooling branch pipe (12), one end of the tube body (11) is provided with the air inlet (111), two cooling branch pipes (12) are respectively located on both sides of the tube body (11), and one end of the two cooling branch pipes (12) is respectively connected to the tube body (11), and the other ends of the two cooling branch pipes (12) respectively penetrate the left and right wheel covers (7) of the automobile and form the first air outlet (121), and the two first air outlets (121) are respectively oriented toward the corresponding brake disc (6).

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

4. The brake cooling system according to claim 2, characterized in that: It also comprises a shielding device (2); the tube body (11) is provided with a second air outlet (112) at one end opposite to the air inlet (111); the shielding device (2) is movably mounted at the second air outlet (112) and is used to shield or open the second air outlet (112).

5. The brake cooling system according to claim 4, characterized in that: The shielding device (2) comprises a plurality of grille blades (21) which are parallel to each other, and each of the grille blades (21) is rotatably mounted at the second air outlet (112).

6. The brake cooling system according to claim 4, characterized in that: The brake cooling system further comprises a driving mechanism (9), wherein the driving mechanism (9) is drivingly connected to the shielding device (2) and is used to drive the shielding device (2) to move relative to the second air outlet (112).

7. The brake cooling system according to claim 6, characterized in that: The invention also comprises a controller (3), a first pressure sensor (41), a second pressure sensor (42) and a brake disc temperature sensor (43), wherein 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 connected to the drive mechanism (9) for communication, and the controller (3) is also connected to the first pressure sensor (41), the second pressure sensor (42), the brake disc temperature sensor (43) and the brake disc temperature sensor (43). The controller (3) is communicatively connected to at least one of a brake disc temperature sensor (43), an automobile ABS system (44), a pedal sensor (45), a vehicle speed sensor (46) and a fan speed sensor (47); the controller (3) is used to enable the drive mechanism (9) to drive the shielding device (2) to operate according to a signal given by at least one of the first pressure sensor (41), the second pressure sensor (42), the brake disc temperature sensor (43), the automobile ABS system (44), the pedal sensor (45), the vehicle speed sensor (46) and the fan speed sensor (47).

8. A vehicle body component, characterized in that: It comprises a cooling and heat dissipation module (5) and a brake cooling system according to any one of claims 1 to 7, wherein the cooling and heat dissipation module (5) comprises a fan (51), and a brake cooling air duct (1) of the brake cooling system is located at the rear of the fan (51).

9. The vehicle body component according to claim 8, characterized in that The fan (51) comprises 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) provided with an air inlet (111) along the circumferential edge portion of the mounting hole (513).

10. An automobile, characterized in that: Comprising a vehicle body component as described in any one of claims 8-9.

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