Brake disc cooling device and automobile

Abstract

An embodiment of the present application provides a brake disc heat dissipation device and an automobile. The automobile includes a brake disc and a housing. The housing is arranged to form a front vehicle cavity. The front vehicle cavity includes a ventilation portion connected to the outside. The brake disc heat dissipation device is characterized in that the brake disc heat dissipation device includes: a heat dissipation channel, the heat dissipation channel includes an inlet and an outlet, the inlet faces the front of the automobile, and the outlet faces the brake disc; a deflector, the deflector is movably arranged at the inlet, the deflector includes a first state and a second state, the deflector can be moved and switched between the first state and the second state, the deflector connects the ventilation portion and the heat dissipation channel when in the first state, and blocks the ventilation portion and the heat dissipation channel when in the second state; and a drive structure, the drive structure is connected to the deflector and is used to drive the deflector to switch between the first state and the second state. The brake disc heat dissipation device of the present application can meet the heat dissipation needs of the automobile in different situations and has strong practicality.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of vehicles, and in particular to a brake disc heat dissipation device and a vehicle. Background Art

[0002] Currently, few automotive products feature forced convection heat transfer specifically for brake discs. Some existing brake disc cooling systems utilize fixed ventilation, which is redundant in most operating conditions and impacts the ventilation requirements of other modules and the overall vehicle's wind resistance. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide a brake disc heat dissipation device and a car to meet the huge heat dissipation needs of the brake disc in some cases, making the car more intelligent and adapting to the performance requirements under different working conditions.

[0004] One aspect of an embodiment of the present application provides a brake disc heat dissipation device for an automobile, the automobile comprising a brake disc and a housing, the housing enclosing a front vehicle cavity, the front vehicle cavity comprising a ventilation portion communicating with the outside, the brake disc heat dissipation device comprising:

[0005] a heat dissipation channel, the heat dissipation channel comprising an inlet and an outlet, the inlet facing the front of the vehicle, and the outlet facing the brake disc;

[0006] a deflector, the deflector being movably disposed at the inlet, the deflector including a first state and a second state, the deflector being movable and switchable between the first state and the second state, wherein the deflector connects the ventilation portion and the heat dissipation channel when in the first state, and blocks the ventilation portion and the heat dissipation channel when in the second state;

[0007] A driving structure is connected to the guide plate and is used to drive the guide plate to switch between the first state and the second state.

[0008] Optionally, the brake disc includes at least a left front wheel brake disc and a right front wheel brake disc, the heat dissipation channel includes at least a first heat dissipation channel and a second heat dissipation channel, the outlet of the first heat dissipation channel faces the left front wheel brake disc, and the outlet of the second heat dissipation channel faces the right front wheel brake disc; the guide plate includes at least a first guide plate connected to the first heat dissipation channel and a second guide plate connected to the second heat dissipation channel.

[0009] Optionally, the guide plate includes a first guide plate end and a second guide plate end relative to each other, the first guide plate end is hinged to the outer shell, in a first state, the second guide plate end is connected to a first position of the inlet, and the heat dissipation channel is connected to the ventilation portion, in a second state, the second guide plate end is connected to a second position of the inlet, the guide plate blocks the ventilation portion and the heat dissipation channel, and the second position is close to the ventilation portion relative to the first position.

[0010] Optionally, the inlet includes a long hole, the first position and the second position are opposite ends in the length direction of the long hole, the second end of the guide plate is movably connected to the long hole, and the driving structure is used to control the second end of the guide plate to slide in the long hole and switch to the first position or the second position.

[0011] Optionally, the driving structure includes a motor and a connecting rod, and the motor cooperates with the connecting rod to control the second end of the guide plate to slide between the long holes and switch to the first position or the second position.

[0012] Optionally, the guide plate further includes a third state, in which the heat dissipation channel is connected to the ventilation portion, and a cross-sectional area of the inlet connected to the ventilation portion is smaller than a cross-sectional area of the inlet connected to the ventilation portion in the first state.

[0013] Optionally, the brake disc cooling device further includes a deflector controller for controlling the deflector to switch between the first state and the second state according to at least one of the temperature of the brake disc, the frequency of use and the endurance of the vehicle.

[0014] On the other hand, the present application provides a car, which includes a shell, a front vehicle cavity enclosed by the shell, front wheels arranged on both sides of the front vehicle cavity, brake discs fixed to the front wheels, and a brake disc cooling device as described in any one of the above items.

[0015] Optionally, the automobile includes a cooling module, and the cooling module is arranged in the ventilation part.

[0016] Optionally, the housing includes an air intake grille connecting the outside with the ventilation portion, and the inlet of the brake disc heat dissipation device is arranged on the left and / or right side of the air intake grille.

[0017] The brake disc heat dissipation device of the present application utilizes flowing airflow to cool the brake disc. A heat dissipation channel is provided to guide the airflow entering from the front end of the vehicle to the brake disc. A guide plate is also provided, and the guide plate can be controlled by a drive structure to switch between a first state and a second state to control whether the airflow enters the heat dissipation channel. When the brake disc needs to be cooled, the brake disc is cooled, thereby extending the life of the brake disc. When the brake disc does not need to be cooled, the airflow does not enter the heat dissipation channel, and the ventilation volume requirements of other components that need to be cooled and the wind resistance performance of the entire vehicle are not affected. In this way, the brake disc heat dissipation device of the present application can adapt to the heat dissipation needs of the vehicle in different situations and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A partial schematic diagram of a vehicle according to an embodiment of the present application, including a partially enlarged view of a brake disc heat dissipation device;

[0019] Figure 2 A schematic diagram of a brake disc heat dissipation device according to an embodiment of the present application;

[0020] Figure 3 for Figure 2 The schematic diagram of the brake disc heat dissipation device in the first state is shown;

[0021] Figure 4 for Figure 2 Schematic diagram of the brake disc cooling device in the second state.

[0022] Among them, the brake disc heat dissipation device 1, the outer shell 2, the front vehicle cavity 3, the ventilation part 31, the cooling module 4, the air intake grille 5, the heat dissipation channel 11, the guide plate 12, the drive structure 13, the inlet 14, the outlet 15, the first heat dissipation channel 111, the second heat dissipation channel 112, the first guide plate 121, the second guide plate 122, the first end 123 of the guide plate, the second end 124 of the guide plate, the first position 141, the second position 142, and the long hole 143. DETAILED DESCRIPTION

[0023] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of devices consistent with certain aspects of the present application, as detailed in the appended claims.

[0024] The terms used in the embodiments of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by a person of ordinary skill in the art to which this application belongs. The terms "first," "second," and similar terms used in this specification and claims do not denote any order, quantity, or importance, but are simply used to distinguish different components. Similarly, terms such as "a" or "an" do not denote a limitation on quantity, but rather indicate the presence of at least one. "Multiple" or "several" means two or more. Unless otherwise indicated, terms such as "front," "rear," "lower," and / or "upper" are for convenience only and are not intended to limit to a single position or spatial orientation. Terms such as "include" or "comprising" mean that the elements or objects listed before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "an," "said," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0025] As the maximum speed and acceleration capability of automobiles increase, in order to ensure safety and stability, it is necessary to dissipate heat from the brake discs to ensure that the brake discs can maintain normal operation. In current automobile products, there are few forced convection heat exchange designs specifically for brake discs, and most of them adopt fixed ventilation designs, which makes the heat dissipation device redundant under most working conditions and affects the ventilation volume requirements of other components of the vehicle that need to be cooled, such as the cooling module 4, and the wind resistance performance of the entire vehicle. The present application provides a brake disc heat dissipation device 1 and an automobile, Figure 1 A schematic diagram of a car according to an embodiment of the present application; Figure 2 This is a schematic diagram of a brake disc heat dissipation device 1 according to an embodiment of the present application. Figure 1 and Figure 2The present application provides a brake disc heat dissipation device 1 for an automobile and an automobile (not fully illustrated). In the illustrated embodiment, the automobile includes: an outer shell 2, a front cavity 3 enclosed by the outer shell 2, front wheels (not illustrated) disposed on either side of the front cavity 3, brake discs (not illustrated) secured to the front wheels, and the brake disc heat dissipation device 1 of the present application. In the illustrated embodiment, the front cavity 3 includes a ventilation portion 31 communicating with the outside world. In some embodiments, the automobile further includes an air intake grille 5 disposed at the front end of the outer shell 2. A cooling module 4 is disposed within the ventilation portion 31 behind the air intake grille 5. When the automobile is driving, air flows from the air intake grille 5 into the front cavity 3 to cool the internal components of the automobile.

[0026] Please refer to Figure 1 and Figure 2 The present application provides a brake disc heat dissipation device 1, comprising a heat dissipation channel 11, a deflector 12, and a drive structure 13. The heat dissipation channel 11 comprises an inlet 14 and an outlet 15, wherein the inlet 14 faces the front of the vehicle, and the outlet 15 faces the brake disc. In some embodiments, the outlet 15 is fixedly connected to the brake disc. In some embodiments, the inlet 14 is an opening at the front end of the housing 2. In other embodiments, the housing 2 comprises an air intake grille 5, and the inlet 14 of the brake disc heat dissipation device 1 is located on the left and / or right side of the air intake grille 5. The deflector 12 is movably disposed at the inlet 14. The deflector 12 comprises a first state and a second state, and the deflector 12 can be moved and switched between the first state and the second state. When in the first state, the deflector 12 connects the ventilation portion 31 with the heat dissipation channel 11. When in the second state, the deflector 12 blocks the ventilation portion 31 and the heat dissipation channel 11. The drive structure 13 is connected to the deflector 12 and is used to drive the deflector 12 to switch between the first state and the second state. In some embodiments, the drive structure 13 of the present application is connected to the vehicle's main controller. When the vehicle is operating in a mode requiring high-intensity brake disc operation, such as track mode, the deflector 12 is driven to a first position, the heat dissipation channel 11 communicates with the vent 31, and air enters the front of the vehicle, passes through the heat dissipation channel 11, and exits through the outlet 15 to cool the brake disc. In some embodiments, because the deflector 12 increases wind resistance in the first position, when the vehicle is in an energy-saving mode, for example, where low wind resistance is required to enhance vehicle performance or reduce fuel consumption or power consumption, the main controller can control the drive structure 13 to drive the deflector 12 to a second position to achieve better wind resistance. In some embodiments, when the vehicle is in idle mode or cruise control mode, where the brake disc is rarely or not used at all, the main controller can also control the drive structure 13 to drive the deflector 12 to the second position, thereby directing air flow primarily into the vent 31 to cool the cooling module 4.

[0027] The brake disc heat dissipation device 1 of the present application is provided with a heat dissipation channel 11, which guides the airflow entering from the front end of the car to the brake disc and uses the flowing airflow to dissipate heat. At the same time, a guide plate 12 is provided, and the guide plate 12 can be controlled by a driving structure 13 to switch between a first state and a second state to control whether the airflow can enter the heat dissipation channel 11, so that the brake disc can be cooled when it is needed, thereby enhancing the car's handling and extending the life of the brake disc. When the brake disc does not need to be cooled, the airflow does not enter the heat dissipation channel 11, and does not affect the ventilation volume requirements of other components that need to be cooled and the wind resistance performance of the entire vehicle. In this way, the brake disc heat dissipation device 1 of the present application can adapt to different vehicle conditions and is highly practical.

[0028] Since the automobile of the present application uses the brake disc heat dissipation device 1 of the present application, it can better adapt to different driving requirements and has good performance.

[0029] Figure 3 for Figure 2 The schematic diagram of the brake disc heat dissipation device 1 in the first state is shown; Figure 4 for Figure 2 The schematic diagram of the brake disc cooling device 1 in the second state is shown. Figure 3 and Figure 4 , the dotted line with an arrow in the figure represents the flow direction of the airflow. In some embodiments, the car includes an air intake grille 5 and the brake disc cooling device 1 of the present application. In the illustrated embodiment, the airflow enters from the air intake grille 5 during the driving process of the car. The inlets 14 of the two brake disc cooling devices 1 are arranged behind the left end and the right end of the air intake grille 5. Please refer to Figure 3 In the first position, deflector 12 does not block vent 31 and inlet 14 of heat dissipation channel 11, allowing airflow to enter heat dissipation channel 11 through inlet 14 and flow toward the brake disc for ventilation and heat dissipation. In some embodiments, deflector 12 also blocks inlet 14 of heat dissipation channel 11 and the front vehicle cavity 3 except for vent 31 in the first position, preventing airflow from escaping, resulting in poor heat dissipation and affecting the vehicle's aerodynamic performance.

[0030] Please refer to Figure 4In the second state, the deflector 12 blocks the ventilation section 31 and the inlet 14 of the heat dissipation channel 11, so that the airflow does not enter the heat dissipation channel 11 but flows only to the ventilation section 31, without affecting the ventilation volume requirements of other components that need to be cooled in the ventilation section 31 and the wind resistance performance of the entire vehicle. In some embodiments, the deflector 12 also blocks the inlet 14 of the heat dissipation channel 11 and the cavity of the front vehicle cavity 3 other than the ventilation section 31 in the second state, preventing the airflow from overflowing, which would result in poor heat dissipation and affect the aerodynamic performance of the vehicle. In the illustrated embodiment, in some embodiments, the vehicle includes a cooling module 4 for cooling the engine or other components. The cooling module 4 is disposed in the ventilation cavity of the vehicle. When the deflector 12 is in the second state, the airflow dissipates heat and cools the cooling module 4.

[0031] Please refer to Figure 3 and Figure 4 In some embodiments, the brake disc includes at least a left front wheel brake disc and a right front wheel brake disc, the heat dissipation channel 11 includes at least a first heat dissipation channel 111 and a second heat dissipation channel 112, the outlet 15 of the first heat dissipation channel 111 faces the left front wheel brake disc, and the outlet 15 of the second heat dissipation channel 112 faces the right front wheel brake disc; the deflector 12 includes at least a first deflector 121 connected to the first heat dissipation channel 111 and a second deflector 122 connected to the second heat dissipation channel 112. In some embodiments, the brake disc heat dissipation device 1 of the present application can also be used for ventilation and heat dissipation of the brake discs of the rear wheels of a car, and the inlet 14 of the heat dissipation channel 11 can be installed on the bottom of the car, facing the front end of the car. In this way, the brake disc heat dissipation channel 11 of the present application can be used for brake discs of all wheels of a car, and has strong versatility.

[0032] In some embodiments, the guide plate 12 can be connected to the heat dissipation channel 11 in a variety of ways, for example, by being hinged to the inlet 14 of the heat dissipation channel 11 through a rotating shaft, and the driving structure 13 controls the rotation of the rotating shaft to control whether the guide plate 12 blocks the inlet 14 of the heat dissipation channel 11. In other embodiments, other structures may be used, please refer to Figure 3 and Figure 4 In the illustrated embodiment, the deflector 12 includes a first deflector end 123 and a second deflector end 124 opposite to each other. The first deflector end 123 is hinged to the housing 2. In a first state, the second deflector end 124 is connected to a first position 141 of the inlet 14, and the heat dissipation channel 11 is connected to the ventilation portion 31. In a second state, the second deflector end 124 is connected to a second position 142 of the inlet 14, and the deflector 12 blocks the ventilation portion 31 and the heat dissipation channel 11. The second position 142 is closer to the ventilation portion 31 relative to the first position 141. Figure 3 for Figure 2 The schematic diagram of the brake disc heat dissipation device 1 is shown in a first state, where the second end 124 of the deflector is connected to the first position 141 of the inlet 14; Figure 4 for Figure 2 The diagram shows the brake disc cooling device 1 in the second state. At this time, the second end 124 of the guide plate is connected to the second position 142 of the inlet 14. The second position 142 is relative to the ventilation portion 31 at the first position 141. When the guide plate 12 is connected to the second position 142, the guide plate 12 blocks the ventilation portion 31 and the cooling channel 11. In this way, the cooling channel 11 of the present application has a simple and reliable structure.

[0033] Please refer to Figure 2 In some embodiments, the inlet 14 includes an elongated hole 143, with the first position 141 and the second position 142 being opposite ends of the elongated hole 143 in the longitudinal direction. The deflector second end 124 is movably connected to the elongated hole 143, and the drive structure 13 is used to control the deflector second end 124 to slide within the elongated hole 143, switching between the first position 141 and the second position 142. In this way, the deflector second end 124 can slide within the elongated hole 143, facilitating control by the drive structure 13. In the illustrated embodiment, the drive structure 13 includes a motor and a connecting rod. The motor and the connecting rod cooperate to control the deflector second end 124 to slide between the elongated holes 143, switching between the first position 141 and the second position 142. In some embodiments, the motor moves linearly, and the connecting rod includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to the second section of the deflector 12, and the other end is hinged to the second connecting rod. The second connecting rod is fixed to the motor and moves linearly with the linear motion of the motor. The angle between the first connecting rod and the second connecting rod changes with the movement of the second connecting rod. At the same time, the second end 124 of the deflector slides in the long hole 143 and switches to the first position 141 or the second position 142, so that the deflector 12 switches between the first state and the second state, so that the brake disc cooling device 1 of the present application meets the different cooling requirements of the car in different states. In some embodiments, the connecting rod generates a certain pressure or tension on the deflector 12 when it is in the first position 141 or the second position 142, so that the connecting rod can be relatively stably fixed in the first position 141 or the second position 142. In some embodiments, the first and second connecting rods are hinged by a threaded slider, and the distance between the first connecting rod and the motor can be adjusted to adapt to different internal structures of the car.

[0034] In some embodiments, the deflector 12 also has a third state. In this third state, the heat dissipation channel 11 communicates with the vent 31, and the cross-sectional area of the inlet 14 connecting to the vent 31 is smaller than the cross-sectional area of the inlet 14 connecting to the vent 31 in the first state. For example, the deflector 12 can be connected to any position within the elongated hole 143 to control the air flow into the heat dissipation channel 11. The brake disc heat dissipation device 1 of the present application is flexible in use.

[0035] In the illustrated embodiment, the inlet 14 of the heat dissipation channel 11 is rectangular. A first position 141 abuts the inlet 14 of the heat dissipation channel 11, away from the inner wall of the vent 31. A second position 142 abuts the inlet 14 of the heat dissipation channel 11, closer to the inner wall of the vent 31. Thus, when the deflector 12 is connected to the first position 141 and in a first state, the deflector 12 abuts the inlet 14 of the heat dissipation channel 11, away from the inner wall of the vent 31, thereby directing airflow toward the heat dissipation channel 11 of the brake disc cooling device 1. In some embodiments, the width of the deflector 12 is adapted to the height of the heat dissipation channel 11. In either the first or second state, the deflector 12 blocks the inlet 14 of the heat dissipation channel 11 from the interior of the front vehicle cavity 3, excluding the vent 31, preventing airflow from escaping, which would result in poor heat dissipation and affect the vehicle's aerodynamic performance.

[0036] In some embodiments, the brake disc cooling device 1 further includes a deflector controller for controlling the deflector 12 to switch between a first state and a second state based on at least one of the brake disc temperature, frequency of use, and vehicle range. Thus, the brake disc cooling device 1 of the present application is highly practical. In some embodiments, the deflector controller is connected to the vehicle's master controller. In some embodiments, when the vehicle's battery charge or fuel level is low, airflow into the cooling channel 11 affects the vehicle's aerodynamic performance and increases power or fuel consumption. In this case, the drive structure 13 controls the deflector 12 to connect to the second position 142, thereby improving the vehicle's range.

[0037] In some embodiments, a sensor is provided on the brake disc and is electrically connected to the drive structure 13. When the temperature of the brake disc is too high or the frequency of use of the brake disc increases, the drive structure 13 controls the deflector 12 to be connected to the second position 142, thereby dissipating the heat of the brake disc, enhancing the handling of the car, and extending the service life of the brake disc.

[0038] The above is a detailed introduction to the brake disc heat dissipation device and automobile provided in the embodiments of the present application. This article uses specific examples to illustrate the brake disc heat dissipation device and automobile in the embodiments of the present application. The description of the above embodiments is only used to help understand the core concept of the present application and is not intended to limit the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the spirit and principles of the present application, various improvements and modifications can be made to the present application, and these improvements and modifications should also fall within the scope of protection of the claims attached to the present application.

Claims

1. A brake disc heat dissipation device for an automobile, comprising a brake disc and a housing, wherein the housing is arranged to form a front vehicle cavity, the front vehicle cavity comprising a ventilation portion communicating with the outside world, the housing comprising an air intake grille communicating with the outside world and the ventilation portion, and the air intake grille is disposed at a front end of the housing; characterized in that: The brake disc heat dissipation device comprises: a heat dissipation channel, the heat dissipation channel including an inlet and an outlet, the inlet facing the front of the vehicle and arranged behind the left end and / or behind the right end of the air intake grille, and the outlet facing the brake disc; a deflector, the deflector being movably disposed at the inlet, the deflector including a first state and a second state, the deflector being movable and switchable between the first state and the second state, wherein the deflector connects the ventilation portion and the heat dissipation channel when in the first state, and blocks the ventilation portion and the heat dissipation channel when in the second state; a driving structure connected to the guide plate and configured to drive the guide plate to switch between the first state and the second state; The deflector comprises a first deflector end and a second deflector end opposite to each other, the first deflector end being hinged to the front end of the housing, and in a first state, the second deflector end is connected to a first position of the inlet, and the heat dissipation channel is connected to the ventilation portion, and in a second state, the second deflector end is connected to a second position of the inlet, and the deflector blocks the ventilation portion and the heat dissipation channel, and the second position is closer to the ventilation portion relative to the first position; The first position is close to the inlet of the heat dissipation channel and away from the inner side of the inner wall of the ventilation portion, and the second position is close to the inlet of the heat dissipation channel and close to the inner side of the inner wall of the ventilation portion.

2. The brake disc heat dissipation device according to claim 1, characterized in that: The brake disc includes at least a left front wheel brake disc and a right front wheel brake disc, the heat dissipation channel includes at least a first heat dissipation channel and a second heat dissipation channel, the outlet of the first heat dissipation channel faces the left front wheel brake disc, and the outlet of the second heat dissipation channel faces the right front wheel brake disc; the deflector includes at least a first deflector connected to the first heat dissipation channel and a second deflector connected to the second heat dissipation channel.

3. The brake disc heat dissipation device according to claim 1, wherein: The inlet includes a long hole, the first position and the second position are opposite ends in the length direction of the long hole, the second end of the guide plate is movably connected to the long hole, and the driving structure is used to control the second end of the guide plate to slide in the long hole and switch to the first position or the second position.

4. The brake disc heat dissipation device according to claim 3, characterized in that: The driving structure includes a motor and a connecting rod. The motor cooperates with the connecting rod to control the second end of the guide plate to slide between the long holes and switch to the first position or the second position.

5. The brake disc heat dissipation device according to claim 1, wherein: The guide plate further includes a third state, in which the heat dissipation channel is connected to the ventilation portion, and a cross-sectional area of the inlet connected to the ventilation portion is smaller than a cross-sectional area of the inlet connected to the ventilation portion in the first state.

6. The brake disc heat dissipation device according to claim 1, wherein: The brake disc heat dissipation device also includes a deflector controller for controlling the deflector to switch between the first state and the second state based on at least one of the temperature of the brake disc, the frequency of use, and the endurance of the vehicle.

7. An automobile, characterized in that: The automobile comprises: a shell, a front vehicle cavity enclosed by the shell, front wheels arranged on both sides of the front vehicle cavity, brake discs fixed to the front wheels, and a brake disc heat dissipation device according to any one of claims 1-6.

8. The automobile according to claim 7, wherein: The automobile includes a cooling module, which is arranged in the ventilation part.

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