Brake cooling device and vehicle

By controlling the start and stop of the water-cooling components through air-cooling components and temperature and flow rate detection, the problem of the water-cooling heat dissipation device not responding in time is solved, realizing automated heat dissipation of the brake disc, improving the heat dissipation effect of the brake disc and the safety of the vehicle.

CN224409198UActive Publication Date: 2026-06-26WUHAN LOTUS CARS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN LOTUS CARS CO LTD
Filing Date
2025-05-19
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing water-cooling devices cannot respond to the heat dissipation needs of the brake disc in a timely manner, resulting in an increase in brake disc temperature, which may lead to structural failure or reduced service life.

Method used

The air-cooling component guides airflow to the brake disc, and the temperature detection and control components control the start and stop of the water-cooling component to spray water mist to achieve automatic adjustment of heat dissipation requirements. The water spray volume is optimized by combining the flow rate detection component.

Benefits of technology

It enables timely heat dissipation of the brake disc, improves the heat dissipation effect, reduces the need for manual control, and enhances the cooling capacity of the brake disc and the safety of the vehicle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the application provides a brake cooling device and a vehicle. It relates to the technical field of vehicles. The brake cooling device comprises a wind cooling assembly, which is used for guiding airflow to a brake disc. The brake cooling device further comprises a water cooling assembly, which is connected with the wind cooling assembly and sprays water mist towards the wind cooling assembly, so that the water mist flows to the brake disc along with the airflow. The brake cooling device further comprises a control assembly, which comprises a temperature detection member and a control member. The temperature detection member is used for detecting the temperature of the brake disc. The control member is electrically connected with the temperature detection member and the water cooling assembly. The control member controls the start and stop of the water cooling assembly according to the detected temperature. The cooling effect of the brake disc is improved.
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Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a brake cooling device and a vehicle. Background Technology

[0002] During frequent acceleration and braking, a vehicle's brake discs accumulate a significant amount of heat in a short period. If this heat is not dissipated, the brake disc temperature will gradually rise, and under high temperatures, the brake discs are prone to structural failure or reduced lifespan.

[0003] In related technologies, in order to improve the heat dissipation effect of brake discs, not only are air-cooled heat dissipation devices installed on the brake discs, but water-cooled heat dissipation devices are also installed. The water-cooling devices spray water onto the brake discs to further enhance the heat dissipation effect of the brake discs.

[0004] However, in the related technologies, the water-cooling heat dissipation device requires the user to judge and turn on the water-cooling heat dissipation device, which cannot respond to the heat dissipation needs of the brake disc in a timely manner. Utility Model Content

[0005] This application provides a brake cooling device and vehicle to improve the heat dissipation effect of the brake disc.

[0006] In a first aspect, embodiments of this application provide a brake cooling device, comprising:

[0007] An air-cooled assembly, which supplies airflow to the brake disc.

[0008] A water-cooled assembly is connected to the air-cooled assembly. The water-cooled assembly sprays water mist into the air-cooled assembly so that the water mist flows with the airflow to the brake disc.

[0009] A control component includes a temperature detection element and a control element. The temperature detection element is used to detect the temperature of the brake disc. The control element is electrically connected to the temperature detection element and the water cooling component. The control element controls the start and stop of the water cooling component based on the detected temperature.

[0010] In one possible implementation, the control component has a preset temperature. When the temperature detected by the temperature sensor is greater than or equal to the preset temperature, the control component controls the water cooling component to turn on; when the temperature detected by the temperature sensor is less than the preset temperature, the control component controls the water cooling component to turn off.

[0011] In one possible implementation, the control component further includes a flow rate detector for detecting the airflow velocity of the air-cooled component. The control component is electrically connected to the flow rate detector and controls the start and stop of the water-cooled component based on the detected airflow velocity.

[0012] In one possible implementation, the control unit has multiple preset airflow velocities, which increase sequentially. The water cooling component has multiple water spray volumes, which increase sequentially. The preset airflow velocities correspond one-to-one with the water spray volumes. When the airflow velocity detected by the flow velocity detection unit is greater than or equal to the preset airflow velocity, the control unit controls the water cooling component to turn on the corresponding water spray volume.

[0013] In one possible implementation, the air-cooled assembly includes a main ventilation duct and an air intake, the air intake being directed toward the front end of the vehicle in the direction of travel, one end of the main ventilation duct being connected to the air intake, and the other end being directed toward the brake disc.

[0014] In one possible implementation, the air-cooling assembly further includes an active air supply component disposed in the main ventilation duct, the active air supply component being used to drive the gas in the main ventilation duct to flow toward the brake disc.

[0015] In one possible implementation, the water-cooling assembly is located between the active air supply component and the brake disc.

[0016] In one possible implementation, the water-cooling assembly includes a water tank, a water pipe, a water pump, and a nozzle. The water pump is connected to the water tank, the water pipe is connected to the water pump, and the nozzle is connected to the water pipe. The nozzle is located inside the air-cooling assembly to spray water mist into the air-cooling assembly.

[0017] In one possible implementation, the water cooling assembly further includes a flow detection element for detecting the water flow rate in the water pipe, and the flow detection element is electrically connected to the control element.

[0018] Secondly, embodiments of this application provide a vehicle, including a vehicle body and a brake cooling device disposed on the vehicle body.

[0019] This application provides a brake cooling device and vehicle. The brake cooling device guides airflow to the brake disc through an air-cooling component to cool the brake disc. A water-cooling component is connected to the air-cooling component and sprays water mist into the air-cooling component. When the water mist is blown onto the brake disc by the airflow in the air-cooling component, the cooling effect on the brake disc is further enhanced. The temperature of the brake disc is detected by a temperature sensor, so that the control component starts and stops the water-cooling component according to the detected temperature, without manual control. This allows the water-cooling component to respond promptly to the heat dissipation needs of the brake disc and improve the heat dissipation effect of the brake disc. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0021] Figure 1 A schematic diagram of the brake cooling device provided in this application;

[0022] Figure 2 A schematic diagram of the structure of the brake cooling device provided in this application, which has an active air supply component.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Brake disc; 2. Mudguard; 3. Wheel;

[0025] 100. Air-cooled components;

[0026] 110. Main ventilation duct;

[0027] 120. Air intake;

[0028] 130. Active air supply components;

[0029] 200. Water-cooled components;

[0030] 210. Water tank;

[0031] 220. Water pipes;

[0032] 230. Water pump;

[0033] 240. Sprayer head.

[0034] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0035] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0036] During frequent acceleration and braking, a vehicle's brake discs accumulate a significant amount of heat in a short period. If this heat is not dissipated, the brake disc temperature will gradually rise, and under high temperatures, the brake discs are prone to structural failure or reduced lifespan.

[0037] In related technologies, to improve the heat dissipation of brake discs, both air-cooling and water-cooling devices are installed. The brake discs are mounted on the vehicle and also have mudguards. The air-cooling device cools the brake disc through the mudguard, while the water-cooling device sprays water onto the brake disc to further enhance heat dissipation. However, the water-cooling devices in these technologies automatically detect and activate their own cooling mechanisms, failing to respond promptly to the brake disc's heat dissipation needs.

[0038] This application provides a brake cooling device and vehicle. An air-cooling component guides airflow to the brake disc to cool it. A water-cooling component is connected to the air-cooling component and sprays water mist into the air-cooling component. When the water mist is blown onto the brake disc by the airflow within the air-cooling component, the cooling effect is further enhanced. A temperature sensor detects the brake disc temperature, allowing a control unit to activate or deactivate the water-cooling component based on the detected temperature, eliminating the need for manual control. This enables the water-cooling component to respond promptly to the brake disc's heat dissipation needs, improving the brake disc's cooling efficiency.

[0039] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0040] This application provides a brake cooling device, referring to... Figure 1 The brake cooling device includes an air-cooled component 100, a water-cooled component 200, and a control component.

[0041] The air-cooling assembly 100 is used to supply airflow to the brake disc 1. The brake disc 1 is located on the wheel 3 of the vehicle, and the vehicle is also equipped with a mudguard 2. The air-cooling assembly 100 passes through the mudguard 2 to air-cool the brake disc 1, and the air outlet of the air-cooling assembly 100 faces the brake disc 1.

[0042] The water-cooled component 200 is connected to the air-cooled component 100. The water-cooled component 200 sprays water mist into the air-cooled component 100 so that the water mist flows with the airflow to the brake disc 1.

[0043] The control component includes a temperature detection element and a control element. The temperature detection element is used to detect the temperature of the brake disc 1. The control element is electrically connected to the temperature detection element and the water cooling component 200. The control element controls the start and stop of the water cooling component 200 according to the detected temperature.

[0044] Airflow is guided to the brake disc 1 by the air-cooling component 100 to cool it. The water-cooling component 200 is connected to the air-cooling component 100 and sprays water mist into it. When the water mist is blown onto the brake disc 1 by the airflow within the air-cooling component 100, the evaporation of the water droplets carries away heat from the brake disc 1, further enhancing the cooling effect. The temperature of the brake disc 1 is detected by a temperature sensor, allowing the control unit to start and stop the water-cooling component 200 based on the detected temperature, eliminating the need for manual control. This ensures that the water-cooling component 200 can respond promptly to the heat dissipation needs of the brake disc 1, improving its heat dissipation efficiency. Furthermore, the control unit allows for timely start and stop of the water-cooling component 200, reducing the amount of water used for cooling.

[0045] For example, the control unit can be the vehicle's infotainment system, which can control the cooling of the brake disc 1, thereby improving the vehicle's handling performance.

[0046] In other examples, the control element can also be a microcontroller unit (MCU). The controller is electrically connected to both the temperature sensor and the water-cooling assembly 200, so that the controller controls the start and stop of the water-cooling assembly 200 based on the temperature detected by the temperature sensor.

[0047] For example, the temperature detection element can be a temperature sensor, which is installed on the vehicle to detect the temperature of the brake disc 1. The temperature sensor is electrically connected to the control unit.

[0048] For example, four temperature sensors can be set up. Each of the four temperature sensors corresponds to one of the four brake discs 1 of the vehicle, so as to detect the temperature of the corresponding brake disc 1.

[0049] In some examples, two air-cooled components 100 can be set up, each corresponding to one of the two brake discs 1 of the vehicle's main braking system, such as the two brake discs 1 at the rear of the vehicle.

[0050] In other examples, four air-cooled components 100 can be configured. Each of the four air-cooled components 100 corresponds to one of the vehicle's four brake discs 1. Each of the four air-cooled components 100 is equipped with a water-cooled component 200. Temperature sensors detect the temperature of each brake disc 1, allowing the controller to individually control each water-cooled component 200. This achieves separate control over the cooling of the four brake discs 1, further improving the cooling effect and reducing water consumption.

[0051] In one possible implementation, the control unit has a preset temperature. When the temperature detected by the temperature sensor is greater than or equal to the preset temperature, the control unit controls the water-cooling component 200 to turn on. When the temperature detected by the temperature sensor is less than the preset temperature, the control unit controls the water-cooling component 200 to turn off.

[0052] The preset temperature setting ensures that the water-cooling component 200 will only activate when the vehicle's brake disc 1 reaches the preset temperature, further reducing water consumption. During normal vehicle use, the vehicle does not undergo frequent acceleration and braking, and the temperature of the brake disc 1 remains at a low level, ensuring that the detected temperature is lower than the preset temperature. This prevents the water-cooling component 200 from activating during normal vehicle use, avoiding frequent additions of coolant.

[0053] Only when the vehicle is braking for a long time, such as when it is going downhill continuously, or when sports passenger cars and racing cars are accelerating and braking frequently in situations such as mountain roads, tracks, and circuit competitions, will a large amount of heat be accumulated in the brake disc 1 in a short period of time, so that the detected temperature of the brake disc 1 is greater than or equal to the preset temperature. Then, the water cooling component 200 is activated by the control component to enhance the cooling of the brake disc 1.

[0054] In one possible implementation, the control component further includes a flow rate detector for detecting the airflow velocity of the air-cooled component 100. The control component is electrically connected to the flow rate detector and controls the start and stop of the water-cooled component 200 based on the detected airflow velocity.

[0055] For example, the flow rate detection device can be set inside the air-cooling assembly 100 to directly detect the air flow rate inside the air-cooling assembly 100.

[0056] For example, the flow velocity detection device can be an anemometer.

[0057] In other examples, the flow rate detector can also be a vehicle speed detector, and calculate the air flow rate inside the air-cooling assembly 100 based on the vehicle speed and the opening degree of the air-cooling assembly 100.

[0058] In one possible implementation, the controller has multiple preset airflow speeds, which increase sequentially. The water cooling component 200 has multiple water spray volumes, which increase sequentially. The preset airflow speeds and water spray volumes correspond one-to-one. When the airflow speed detected by the flow rate detection device is greater than or equal to the preset airflow speed, the controller controls the water cooling component 200 to turn on the corresponding water spray volume.

[0059] For example, the water spray volume of the water-cooling component 200 is positively correlated with the airflow velocity within the air-cooling component 100; the faster the airflow velocity, the larger the water spray volume can be set. A faster airflow velocity can carry more water mist onto the brake disc 1, thereby improving the heat dissipation efficiency of the brake disc 1. Furthermore, a faster airflow velocity in the air-cooling component 100 means a faster vehicle speed and the need for better braking performance. Therefore, improving the cooling efficiency of the brake disc 1 is beneficial for improving the vehicle's braking effect and enhancing vehicle safety.

[0060] Exemplarily, when the temperature of the brake disc 1 detected is greater than or equal to the preset temperature, and the air flow velocity detected by the flow velocity detection component is greater than or equal to the preset air flow velocity, the control component controls the water cooling component 200 to be turned on to the corresponding water spray amount.

[0061] Exemplarily, the detected temperature of the brake disc 1: T0, the preset temperature: T1, the detected air flow velocity: V0, the preset air flow velocity: V1 < V2 < V3, the preset water spray amounts: N1 < N2 < N3.

[0062] When T0 < T1, the control component controls the water cooling component 200 to stop.

[0063] When T0 ≥ T1 and V0 ≤ V1, the control component controls the water cooling component 200 to be turned on to the corresponding water spray amount N1.

[0064] When T0 ≥ T1 and V1 < V0 ≤ V2, the control component controls the water cooling component 200 to be turned on to the corresponding water spray amount N2.

[0065] When T0 ≥ T1 and V2 < V0 ≤ V3, the control component controls the water cooling component 200 to be turned on to the corresponding water spray amount N3.

[0066] When T0 ≥ T1 and V3 < V0, the control component controls the water cooling component 200 to be turned on to the corresponding water spray amount N3.

[0067] And when the detected air flow velocity V0 is gradually decreasing, the water spray amount also gradually decreases until the detected temperature T0 is lower than the preset temperature T1, and the water cooling component 200 is turned off.

[0068] In a possible implementation manner, the air cooling component 100 includes a main ventilation duct 110 and an air inlet 120. The air inlet 120 is used to face the front end in the driving direction of the vehicle. One end of the main ventilation duct 110 is connected to the air inlet 120, and the other end is used to face the brake disc 1.

[0069] In a possible implementation manner, referring to Figure 2 , the air cooling component 100 further includes an active air supply component 130. The active air supply component 130 is arranged in the main ventilation duct 110. The active air supply component 130 is used to drive the gas in the main ventilation duct 110 to flow towards the brake disc 1. So as to actively air-cool the brake disc 1 when the temperature of the brake disc 1 is relatively high but the vehicle speed is too low. In addition, the water mist of the water cooling component 200 can also be blown to the brake disc 1 to adapt to the situation where the vehicle speed is low and the temperature of the brake disc 1 is too high.

[0070] Exemplarily, the active air supply component 130 can be a fan. The fan has a motor drive structure, and the motor drive structure is electrically connected to the vehicle to provide power for the motor drive structure.

[0071] In other examples, the active air supply element 130 can also provide airflow to the impeller and the brake disc 1.

[0072] In one possible implementation, the water-cooling assembly 200 is located between the active air supply component 130 and the brake disc 1. The water-cooling assembly 200 is mainly installed between the brake disc 1 and the active air supply component so that when the active air supply component 130 drives the airflow within the air-cooling assembly 100, the water mist in the airflow is carried onto the brake disc 1, thereby achieving water cooling of the brake disc 1.

[0073] In one possible implementation, the water-cooling assembly 200 includes a water tank 210, a water pipe 220, a water pump 230, and a nozzle 240. The water pump 230 is connected to the water tank 210, the water pipe 220 is connected to the water pump 230, and the nozzle 240 is located inside the air-cooling assembly 100 to spray water mist into the air-cooling assembly 100.

[0074] For example, the water pump 230 has a multi-stage adjustment function to adjust the water spray volume of the nozzle 240, increasing the water spray volume when the brake disc 1 temperature is high and / or the airflow velocity is high, thereby improving the cooling effect on the brake disc 1 and saving water consumption. The water pump 230 is electrically connected to the control unit.

[0075] For example, multiple nozzles 240 can be provided, and the multiple nozzles 240 are respectively fixed in multiple air-cooling components 100.

[0076] For example, the water tank 210 may be a separate water tank 210 installed on the vehicle.

[0077] In other examples, water tank 210 may also be a water tank 210 for storing windshield washer fluid in a vehicle.

[0078] In one possible implementation, the water-cooling assembly 200 further includes a flow sensor for detecting the water flow rate within the water pipe 220. The flow sensor is electrically connected to a control unit. The flow sensor is installed within the water pipe 220 to detect the water flow rate, thereby monitoring whether water is being sprayed out. Furthermore, it can also detect whether the water pump 230 is malfunctioning. In an example where the control unit is a vehicle infotainment system, the system can also alert the user to a water pump 230 malfunction.

[0079] This application also provides a vehicle, including a vehicle body and a brake cooling device disposed on the vehicle body.

[0080] The brake cooling device in this embodiment has the same structure as the brake cooling device provided in any of the above embodiments, and can bring the same or similar technical effects. It will not be described in detail here, but can be referred to the description of the above embodiments.

[0081] The vehicle provided in this embodiment guides airflow to the brake disc 1 via an air-cooling assembly 100 to cool the brake disc 1. A water-cooling assembly 200 is connected to the air-cooling assembly 100 and sprays water mist into the air-cooling assembly 100. When the water mist is blown onto the brake disc 1 by the airflow within the air-cooling assembly 100, the cooling effect on the brake disc 1 is further enhanced. A temperature detector detects the temperature of the brake disc 1, and a flow rate detector detects the airflow speed. The controller starts and stops the water-cooling assembly 200 based on the detected temperature and airflow speed, eliminating the need for manual control. This allows the water-cooling assembly 200 to respond promptly to the heat dissipation needs of the brake disc 1, improving its heat dissipation effect.

[0082] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A brake cooling device characterized by, include: Air-cooled assembly (100), the air-cooled assembly (100) is used to supply airflow to the brake disc (1); A water-cooled assembly (200) is connected to the air-cooled assembly (100). The water-cooled assembly (200) sprays water mist into the air-cooled assembly (100) so that the water mist flows with the airflow to the brake disc (1). The control component includes a temperature detection element and a control element. The temperature detection element is used to detect the temperature of the brake disc (1). The control element is electrically connected to the temperature detection element and the water cooling component (200). The control element controls the start and stop of the water cooling component (200) according to the detected temperature.

2. The brake cooling device of claim 1, wherein, The control component has a preset temperature. When the temperature detected by the temperature detection component is greater than or equal to the preset temperature, the control component controls the water cooling component (200) to turn on. When the temperature detected by the temperature sensor is lower than the preset temperature, the controller controls the water cooling assembly (200) to shut down.

3. The brake cooling device of claim 1, wherein, The control component also includes a flow rate detector for detecting the airflow velocity of the air-cooled component (100). The control component is electrically connected to the flow rate detector and controls the start and stop of the water-cooled component (200) based on the detected airflow velocity.

4. The brake cooling device according to claim 3, characterized in that, The control unit has multiple preset airflow speeds, which increase sequentially. The water cooling component (200) has multiple water spray volumes, which increase sequentially. The preset airflow speeds correspond one-to-one with the water spray volumes. When the airflow speed detected by the flow rate detection device is greater than or equal to the preset airflow speed, the control unit controls the water cooling component (200) to turn on the corresponding water spray volume.

5. The brake cooling device according to any one of claims 1-4, characterized in that, The air-cooled assembly (100) includes a main ventilation duct (110) and an air inlet (120). The air inlet (120) is directed toward the front end of the vehicle in the direction of travel. One end of the main ventilation duct (110) is connected to the air inlet (120), and the other end is directed toward the brake disc (1).

6. The brake cooling device according to claim 5, characterized in that, The air-cooled assembly (100) further includes an active air supply component (130), which is disposed in the main ventilation duct (110) and is used to drive the gas in the main ventilation duct (110) to flow toward the brake disc (1).

7. The brake cooling device according to claim 6, characterized in that, The water-cooling component (200) is located between the active air supply component (130) and the brake disc (1).

8. The brake cooling device according to any one of claims 1-4, characterized in that, The water-cooling assembly (200) includes a water tank (210), a water pipe (220), a water pump (230), and a nozzle (240). The water pump (230) is connected to the water tank (210), the water pipe (220) is connected to the water pump (230), and the nozzle (240) is connected to the water pipe (220). The nozzle (240) is located inside the air-cooling assembly (100) to spray water mist into the air-cooling assembly (100).

9. The brake cooling device according to claim 8, characterized in that, The water cooling assembly (200) also includes a flow detection element, which is used to detect the water flow rate in the water pipe (220) and is electrically connected to the control element.

10. A vehicle, characterized in that, It includes a vehicle body and a brake cooling device as described in any one of claims 1-9, which is disposed on the vehicle body.