Brake hub with good heat dissipation performance
By designing inclined branch heat dissipation channels on the inner and outer rings of the brake wheel hub and combining them with an inertial fan blade system to create a forced air-cooling and water-cooling system, the problem of insufficient heat dissipation at high temperatures in traditional brake wheel hubs is solved, achieving efficient heat dissipation performance and temperature control, and extending service life.
Patent Information
- Application Number
- CN202520443793.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Traditional brake wheel hubs have insufficient heat dissipation performance at high temperatures, which leads to a decline in the mechanical properties of the materials, a decrease in braking performance, and accelerated wear at high temperatures, increasing maintenance costs.
An inclined branch heat dissipation channel and heat dissipation holes with interconnected inner and outer rings were designed. Combined with inertial fan blades, forced air cooling and water cooling system, the inertial fan blades dissipate heat during braking. The infrared temperature sensor and control system intelligently switch between air cooling and water cooling mode to achieve efficient heat dissipation.
It effectively improves the heat dissipation performance of brake wheel hubs, ensuring that they maintain normal operating temperature under various working conditions, extending service life, and reducing maintenance costs.
Smart Images
Figure CN223794547U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of brake wheel hub technology, and in particular to a brake wheel hub with better heat dissipation performance. Background Technology
[0002] In modern transportation, the vehicle's braking system is crucial for driving safety. As a key component of the braking system, the brake wheel hub bears the heavy responsibility of converting the vehicle's kinetic energy into heat energy during braking. However, with the rapid development of the automotive industry, vehicle speeds are constantly increasing, and loads are gradually growing, leading to a significant increase in the heat generated by the brake wheel hub during operation. Traditional brake wheel hubs have significant shortcomings in heat dissipation; during frequent braking or prolonged high-intensity braking, a large amount of heat accumulates inside the brake wheel hub and is difficult to dissipate. Excessive temperature degrades the mechanical properties of the brake wheel hub material, resulting in a decline in braking performance, weakened braking force, and increased braking distance, seriously threatening driving safety. Furthermore, high temperatures accelerate the wear of the brake wheel hub and related components, shortening their service life and increasing vehicle maintenance and operating costs.
[0003] Currently, common brake wheel hub cooling methods mainly include natural air cooling and simple heat dissipation structure design. Natural air cooling relies on the natural airflow during vehicle movement to remove heat, resulting in low heat dissipation efficiency. The cooling effect is further reduced when braking at low speeds or when the vehicle is stationary. Some simple heat dissipation structures, such as ordinary heat dissipation holes or heat dissipation fins, can increase the heat dissipation area to some extent, but they are still insufficient to solve the heat dissipation problem of brake wheel hubs under complex operating conditions. Therefore, this paper proposes a brake wheel hub with better heat dissipation performance. Utility Model Content
[0004] The main objective of this invention is to provide a brake wheel hub with better heat dissipation performance, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A brake wheel hub with good heat dissipation performance includes a wheel hub body. The outer periphery of the wheel hub body is densely provided with inclined branch heat dissipation channels that are interconnected between the inner and outer rings. Several heat dissipation holes are fixedly connected to the front and rear sides of the inclined branch heat dissipation channels.
[0007] The inner ring of the wheel hub body is provided with a bearing, and the inner ring of the bearing is provided with a one-way overrunning clutch. The inner ring of the wheel hub body is fixedly connected to the outer ring of the bearing, and the inner ring of the bearing is fixedly connected to the outer ring of the one-way overrunning clutch. The inner ring of the one-way overrunning clutch is connected to a fan blade, and the inner ring of the one-way overrunning clutch is fixedly connected to the inner ring of the fan blade. The fan blade is coaxially disposed in the inner ring of the wheel hub body.
[0008] Preferably, the fan blade is composed of a roller and three or more blades, with the blades evenly distributed in a ring on the outer ring of the roller, and the inner ring of the roller and the outer ring of the bearing being rotatably connected.
[0009] Preferably, the mass of the blades in the fan blades gradually increases radially from the inner circle to the outer circle, and the mass of the outer circle portion of the blades accounts for 60%-80% of the total mass of a single blade.
[0010] Preferably, a forced air-cooled cooling fan or a forced water-cooled spray nozzle is non-contactly installed on one side of the wheel hub body, and the water inlet of the spray nozzle is fixedly connected to a solenoid valve.
[0011] Preferably, an infrared temperature sensor for detecting the wheel hub body is non-contactly installed on one side of the wheel hub body, and the infrared temperature sensor is electrically connected to a cooling fan or a solenoid valve.
[0012] Preferably, the outer ring of the bearing is fixedly connected to a connecting plate for connecting to the hub body, and the inner ring of the one-way overrunning clutch is fixedly connected to a fixing plate for connecting to the inner wall of the drum.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. Intelligent inertial cooling fan blades: Traditional brake hubs lack an effective way to dissipate heat using braking inertia; this utility model connects the fan blades through bearings and a one-way overrunning clutch. During normal driving, the fan blades are separated from the hub, avoiding energy loss and wear; during braking, the fan blades continue to rotate due to inertia, generating airflow to extract heat or blow air to dissipate heat; the fan blades are heavier on the outside and lighter on the inside, increasing the moment of inertia and extending the rotation time, effectively assisting in heat dissipation during braking, which is an innovative design not available in existing technologies.
[0015] 2. Dual forced cooling protection: Existing technologies rely on a single cooling method at high temperatures; this utility model is equipped with a forced air cooling fan and a forced water cooling spray nozzle, which intelligently switch according to the wheel hub temperature; the forced air cooling can provide a large air volume and high wind speed, while the forced water cooling can efficiently absorb heat using glass water, quickly reducing the wheel hub temperature under high temperatures, and through precise control by an infrared temperature sensor and control system, it ensures that the wheel hub can maintain a normal operating temperature under various working conditions.
[0016] 3. High-efficiency composite heat dissipation structure: This utility model has a dense arrangement of inclined branch heat dissipation channels with interconnected inner and outer rings on the outer periphery of the wheel hub body, and connects to several heat dissipation holes; the inclined branch heat dissipation channels can guide air or windshield washer fluid to flow more efficiently, greatly increasing the heat exchange area and efficiency, and the heat dissipation holes further promote heat dissipation, so that heat can be quickly transferred from the inside of the wheel hub to the outside, significantly improving the overall heat dissipation capacity. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the connection structure of the bearing, one-way overrunning clutch, and fan blade in this utility model;
[0019] Figure 3 This is a schematic diagram of the connection structure of the bearing and the one-way overrunning clutch in this utility model.
[0020] In the diagram: 1. Hub body; 101. Heat dissipation hole; 102. Inclined branch heat dissipation channel; 2. Bearing; 3. One-way overrunning clutch; 4. Fan blade; 401. Roller; 402. Blade; 5. Fixing plate; 6. Connecting plate. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] like Figures 1-3 As shown, a brake wheel hub with good heat dissipation performance includes a wheel hub body 1. The outer periphery of the wheel hub body 1 is densely provided with inclined branch heat dissipation channels 102 that are interconnected between the inner and outer rings. The inclined branch heat dissipation channels 102 can effectively guide the flow of air or windshield washer fluid, increasing the heat exchange area and efficiency. On the front and rear sides of the inclined branch heat dissipation channels 102, a number of heat dissipation holes 101 are fixedly connected. The heat dissipation holes 101 further promote the dissipation of heat, enabling heat to be transferred from the inside of the wheel hub body 1 to the external environment more quickly.
[0023] refer to Figure 2 and Figure 3 As shown, the inner ring of the wheel hub body 1 is provided with a bearing 2, and the outer ring of the bearing 2 is fixedly connected with a connecting plate 6 for connecting the wheel hub body 1. The connecting plate 6 is made of high-strength metal plate and is tightly connected to the outer ring of the bearing 2 and the wheel hub body 1 by bolts or welding to ensure the reliability and stability of the connection and to ensure that there is no relative displacement between the two during vehicle operation. The inner ring of the bearing 2 is fixedly connected to the outer ring of the one-way overrunning clutch 3. The inner ring of the one-way overrunning clutch 3 is connected with a fan blade 4, which is specifically fixedly connected to the inner ring of the one-way overrunning clutch 3 and the inner ring of the fan blade 4 by a fixing plate 5.
[0024] refer to Figure 1 and Figure 2As shown, the fan blade 4 consists of a roller 401 and three or more blades 402. Several blades 402 are evenly distributed in a ring on the outer ring of the roller 401. The included angle between adjacent blades 402 is optimized according to actual heat dissipation requirements and aerodynamic principles, generally between 30° and 60°. The inner ring of the roller 401 and the outer ring of the bearing 2 are connected by a rotational connection to achieve relative rotation. To ensure smooth and stable rotation, a lubrication device, such as applying high-performance grease, is provided between the inner ring of the roller 401 and the outer ring of the bearing 2. The mass of the blades 402 in the fan blade 4 gradually increases radially from the inner ring to the outer ring. The mass of the outer ring of the blade 402 accounts for 60%-80% of the total mass of a single blade 402. This mass distribution can increase the rotational inertia of the fan blade 4, allowing the fan blade 4 to continue rotating for a longer time due to inertia when braking, thereby more effectively dissipating heat.
[0025] refer to Figure 2 and Figure 3 As shown, the inner ring of the one-way overrunning clutch 3 is fixedly connected to a fixing plate 5 for connecting the inner wall of the roller 401. The fixing plate 5 is fixedly connected to the inner ring of the one-way overrunning clutch 3 and the inner wall of the roller 401 to ensure that there will be no loosening or falling off during the rotation of the fan blade 4. The fixing plate 5 can be made of high-strength metal material and is firmly connected to the inner ring of the one-way overrunning clutch 3 and the inner ring of the fan blade 4 by bolts or welding.
[0026] It should be added that a forced air cooling fan or a forced water cooling spray nozzle is installed non-contactly on one side of the wheel hub body 1. The cooling fan or spray nozzle is fixedly connected to the chassis under the vehicle to which the wheel hub body 1 is connected. When forced air cooling is used, the selection of the cooling fan should be reasonably selected according to the heat dissipation requirements of the wheel hub body 1 and the installation space to ensure that it can provide sufficient air volume and wind speed. The installation position of the cooling fan should be accurately calculated and tested to ensure that the blown air can cover the surface of the wheel hub body 1 to the maximum extent and improve the heat dissipation efficiency. When forced water cooling is used, the water inlet of the spray nozzle is fixedly connected to a solenoid valve. The other end of the solenoid valve is connected to the inner cavity of the windshield washer fluid tank in the vehicle to which the wheel hub body 1 is connected through a wire. The solenoid valve is used to control the timing and flow rate of the windshield washer fluid. The design of the spray nozzle should ensure that the windshield washer fluid can be sprayed evenly on the surface of the wheel hub body 1 to form a good heat dissipation effect.
[0027] Furthermore, an infrared temperature sensor for detecting the temperature of the wheel hub body 1 is non-contactly installed on one side of the wheel hub body 1. The infrared temperature sensor should have the characteristics of high precision and fast response, and be able to accurately detect the temperature change of the wheel hub body 1 in real time. The infrared temperature sensor is electrically connected to the cooling fan or solenoid valve through wires, and transmits the detected temperature signal to the control system. The control system controls the start, stop and speed adjustment of the cooling fan, or controls the opening and closing of the solenoid valve according to the preset temperature threshold, so as to realize intelligent control of the temperature of the wheel hub body 1.
[0028] In this utility model, during normal vehicle operation, the wheel hub body 1 rotates with the wheel. Due to the action of the one-way overrunning clutch 3, the fan blade 4 is separated from the wheel hub body 1 and will not rotate with the wheel hub body 1, thereby avoiding unnecessary energy loss and wear. At this time, natural heat dissipation is achieved through the heat dissipation holes 101 and the inclined branch heat dissipation channels 102 on the wheel hub body 1, dissipating the small amount of heat generated by the wheel hub body 1 during normal operation to the surrounding environment.
[0029] When the vehicle brakes, the wheel hub body 1 stops rotating, but the fan blade 4 continues to rotate due to the inertia accumulated during the previous driving, under the action of the one-way overrunning clutch 3. The airflow generated by the rotation of the fan blade 4 extracts heat from the wheel hub body 1 or blows air to dissipate heat, accelerates the airflow on the surface of the wheel hub body 1, and carries away a large amount of heat. At the same time, the inclined branch heat dissipation channel 102 and heat dissipation hole 101 further enhance the heat dissipation effect, so that heat can be transferred from the inside of the wheel hub body 1 to the outside more quickly.
[0030] When the infrared temperature sensor detects that the temperature of the wheel hub body 1 exceeds the preset threshold, it indicates that the wheel hub body 1 is in an abnormal temperature state. At this time, if a forced air cooling fan is installed, the control system will immediately start the cooling fan. The fan runs at high speed, generating a strong airflow to force air cooling of the wheel hub body 1 and quickly reduce the temperature of the wheel hub body 1. If a forced water cooling spray nozzle is installed, the control system will control the solenoid valve to open, and the windshield washer fluid will be sprayed from the spray nozzle, directly contacting the surface of the wheel hub body 1 to absorb heat. It can also flow into the inclined branch cooling channel 102, where it flows to further remove heat and enhance the overall heat dissipation effect. When the temperature of the wheel hub body 1 drops to the normal range, the control system will stop the cooling fan or close the solenoid valve according to the feedback signal from the temperature sensor, so that the wheel hub body 1 is kept in the normal operating temperature range.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A brake wheel hub with good heat dissipation performance, comprising a wheel hub body (1), characterized in that: The hub body (1) is densely provided with inclined branch heat dissipation channels (102) penetrating each other between the inner and outer rings, and a plurality of heat dissipation holes (101) are fixedly communicated on the front and rear sides of the inclined branch heat dissipation channels (102); The inner ring of the hub body (1) is provided with a bearing (2), the inner ring of the bearing (2) is provided with a one-way overrunning clutch (3), the inner ring of the hub body (1) is fixedly connected with the outer ring of the bearing (2), the inner ring of the bearing (2) is fixedly connected with the outer ring of the one-way overrunning clutch (3), the inner ring of the one-way overrunning clutch (3) is connected with a fan blade (4), the inner ring of the one-way overrunning clutch (3) is fixedly connected with the inner ring of the fan blade (4), and the fan blade (4) is coaxially arranged in the inner ring of the hub body (1).
2. The brake hub of claim 1, wherein: The fan blade (4) is composed of a roller (401) and three or more blades (402), a plurality of the blades (402) are uniformly distributed in a ring shape on the outer ring of the roller (401), and the inner ring of the roller (401) is rotationally connected with the outer ring of the bearing (2).
3. The brake hub of claim 2, wherein: The mass of the blades (402) in the fan blade (4) gradually increases from the inner ring to the outer ring in the radial direction, and the mass of the outer ring part of the blade (402) accounts for 60%-80% of the total mass of a single blade (402).
4. The brake hub of claim 1, wherein: A forced air cooling heat dissipation fan or a forced water cooling spray head is non-contact mounted on one side of the hub body (1), and the water inlet of the spray head is fixedly communicated with a solenoid valve.
5. The brake hub of claim 4, wherein: An infrared temperature sensor for detecting the hub body (1) is non-contact mounted on one side of the hub body (1), and the infrared temperature sensor is electrically connected with the heat dissipation fan or the solenoid valve.
6. The brake hub of claim 2, wherein: The outer ring of the bearing (2) is fixedly connected with a connecting plate (6) for connecting the hub body (1), and the inner ring of the one-way overrunning clutch (3) is fixedly connected with a fixed plate (5) for connecting the inner wall of the roller (401).