Reverse air duct brake disc easy to dissipate heat

Abstract

The utility model relates to the technical field of vehicle braking, in particular to a reverse air duct brake disc easy to dissipate heat, which comprises a central mounting part, an outer edge heat dissipation ring, arc-shaped flow guide ribs, an inner side air duct structure, reverse air duct grooves, air inlet holes and surface heat dissipation bulges. Reverse air flow circulation is formed through the reverse air channel grooves and the inner side air channel structure, and the heat dissipation efficiency is remarkably improved. The integrated structure combines cast iron and aluminum alloy materials, the weight is reduced, and the strength is guaranteed; the surface heat dissipation protrusions optimize the air flow path, and heat dissipation uniformity is improved; the mounting hole inner wall thread design simplifies the mounting process. The problem that a traditional brake disc is low in heat dissipation efficiency can be effectively solved, and the requirements for vehicle light weight and installation convenience are met.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle braking technology, specifically a reverse-airflow brake disc for easy heat dissipation. Background Technology

[0002] In the field of automotive braking systems, with the continuous improvement of vehicle performance, brake discs, as key components, face increasingly stringent requirements in terms of heat dissipation performance and structural design. The heat dissipation capacity of the brake disc directly affects the stability and safety of the braking system, especially under conditions of high-speed driving or frequent braking, where efficient heat dissipation design is particularly important. To improve heat dissipation, various improvement schemes have been proposed in existing technologies to meet practical application needs.

[0003] A search revealed a motor vehicle brake disc with publication number CN103671642B, published on January 20, 2016. This design enhances ventilation and heat dissipation by incorporating streamlined raised sections on both sides of the brake disc in a staggered arrangement. This structure utilizes airflow across the brake disc surface to achieve cooling, while the raised section design optimizes the airflow path. Furthermore, some similar technical solutions employ porous structures or increase the number of heat sinks to improve heat dissipation.

[0004] However, these designs generally have certain limitations. For example, the air duct design in CN103671642B is still a traditional forward air duct, with a single airflow direction and low flow efficiency. It is difficult to form an effective reverse airflow circulation at high speeds, thus limiting further improvements in heat dissipation capacity. At the same time, the raised body design increases the complexity of the manufacturing process, potentially placing higher demands on production costs and machining precision. These issues, to some extent, affect the overall performance and economy of the brake disc.

[0005] Therefore, based on the above-mentioned problems, there is still room for improvement in existing technologies. Utility Model Content

[0006] The purpose of this utility model is to provide a brake disc with easy heat dissipation via a reverse airflow duct. Its features include: a central mounting portion; an outer heat dissipation ring connected to the central mounting portion via multiple arc-shaped guide ribs; an inner airflow duct structure disposed between the central mounting portion and the outer heat dissipation ring, composed of a single guide vane; a reverse airflow duct groove disposed on the inner wall of the outer heat dissipation ring, distributed circumferentially and communicating with the inner airflow duct structure; surface heat dissipation protrusions evenly distributed on the outer surface of the outer heat dissipation ring; and an air inlet located next to the mounting hole.

[0007] Preferably, the central mounting portion, the outer heat dissipation ring, and the arc-shaped guide rib are formed into an integrated structure through a casting process, and the material of the integrated structure is composed of % cast iron and % aluminum alloy by weight.

[0008] Preferably, the guide vanes in the inner air duct structure are spiral-shaped.

[0009] Preferably, the cross-sectional shape of the reverse air duct groove is similar to a trapezoid, the bottom width of the groove is smaller than the opening width, and the bottom of the groove is provided with several micro-holes.

[0010] Preferably, the central mounting part has a mounting hole at its center, and the inner wall of the mounting hole is threaded.

[0011] Preferably, the outer edge of the outer heat dissipation ring is chamfered.

[0012] In summary, this utility model includes at least one of the following beneficial technical effects: 1. The design combining a reverse air duct groove with an inner air duct structure changes the single airflow direction of the traditional forward air duct, significantly improving heat dissipation efficiency through reverse airflow circulation and solving the problem of low airflow efficiency in the prior art; 2. The integrated structure material combination fully utilizes the advantages of cast iron and aluminum alloy, reducing the overall weight while ensuring strength and wear resistance, meeting the requirements of vehicle lightweighting; 3. The optimized design of the surface heat dissipation protrusions increases the heat dissipation area and improves the airflow path, further improving heat dissipation uniformity and efficiency; 4. The design of threads on the inner wall of the mounting hole simplifies the installation process and improves the reliability of the connection, adapting to the requirements of modern vehicles for convenient component installation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a diagram of the internal structure of the present invention;

[0015] Figure 3 This is a partial enlarged view of the central mounting part of this utility model.

[0016] Figure Labels

[0017] 1. Central mounting section; 2. Outer edge heat dissipation ring; 3. Arc-shaped air guide ribs; 4. Inner air duct structure; 5. Reverse air duct groove; 6. Surface heat dissipation protrusions; 7. Mounting holes; 8. Chamfer; 9. Air inlet; 10. Air guide vanes. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Example 1

[0022] This utility model relates to a brake disc with a reverse airflow channel for easy heat dissipation, the overall structure of which is as follows: Figure 1 As shown, it includes a central mounting part 1, an outer heat dissipation ring 2, an arc-shaped air guide rib 3, an inner air duct structure 4, a reverse air duct groove 5, a surface heat dissipation protrusion 6, a mounting hole 7, a chamfer 8, an air inlet 9, and a guide plate 10. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] The center mounting part 1 is located at the center of the brake disc and is the core component of the entire brake disc, used for connection with the vehicle wheel hub. The center mounting part 1 has a mounting hole 7 at its center, and the inner wall of the mounting hole 7 is threaded. This threaded design allows the brake disc to be directly fixed to the bolts of the vehicle wheel hub by the threaded connection, without the need for additional nuts or other fasteners. Figure 3The image shows a magnified view of the mounting hole 7, revealing the thread design and its fit with the hub bolts. This design simplifies the assembly process and enhances connection strength. Next to the mounting hole 7 is an air inlet 9, which directs airflow to the guide vane 10. Furthermore, the central mounting section 1 is connected to the outer heat dissipation ring 2 by multiple arc-shaped guide ribs 3. Eight arc-shaped guide ribs 3 are evenly distributed around the periphery of the central mounting section 1 and extend to the inner side of the outer heat dissipation ring 2. These arc-shaped guide ribs 3 not only serve a connecting function but also guide airflow, thereby enhancing the overall structural stability. The central mounting section 1, the outer heat dissipation ring 2, and the arc-shaped guide ribs 3 are integrated into a single structure using a casting process. The material comprises 70% cast iron and 30% aluminum alloy by weight. Cast iron provides high wear resistance and resistance to thermal deformation, while the aluminum alloy reduces overall weight and improves thermal conductivity, ensuring rapid heat transfer to the heat dissipation structure for dissipation.

[0024] Example 2

[0025] Based on Example 1, a reverse air duct 5 is provided to enable the airflow to form a vortex effect.

[0026] The outer heat dissipation ring 2 is the main heat dissipation component of the brake disc, located on the outside of the central mounting part 1, and is firmly connected to it via arc-shaped guide ribs 3. The inner wall of the outer heat dissipation ring 2 is provided with reverse air duct grooves 5, which are distributed circumferentially and communicate with the inner air duct structure 4. The cross-sectional shape of the reverse air duct grooves 5 is similar to a trapezoid, such as... Figure 2 As shown, the width of the groove bottom is slightly smaller than the width of the groove opening, and the groove bottom has several micro-holes. The trapezoidal cross-section design allows the airflow to form a stable vortex effect when flowing within the groove, thereby improving heat dissipation. The micro-holes at the groove bottom generate a small jet effect when the airflow passes through, further accelerating heat dissipation. Furthermore, the presence of micro-holes reduces the overall weight of the brake disc without significantly affecting structural strength. The outer edge of the outer heat dissipation ring 2 has a chamfer 8, as shown... Figure 1 As shown. The chamfered 8 design reduces airflow resistance at the edge of the brake disc, allowing for smoother airflow while avoiding safety hazards caused by overly sharp edges.

[0027] Example 3

[0028] Based on Example 1, a guide vane 10 is provided to enable the airflow to generate a rotational effect.

[0029] The inner air duct structure 4 is located between the central mounting part 1 and the outer heat dissipation ring 2, and is composed of a single guide vane 10. The guide vane 10 is spiral in shape. Figure 1The overall layout of the inner air duct structure 4 and its positional relationship with the central mounting part 1 and the outer heat dissipation ring 2 are shown. The spiral-shaped guide vanes 10 generate a rotational effect as the airflow passes through, thereby enhancing the airflow turbulence and allowing the airflow to reach higher kinetic energy before entering the reverse air duct slot 5, thus more effectively forming a reverse circulation. The connection between the inner air duct structure 4 and the reverse air duct slot 5 is as follows... Figure 2 As shown, after the airflow enters the reverse airflow channel 5 from the inner airflow channel structure 4, a unique reverse airflow circulation path is formed due to the micropores and trapezoidal cross-section design at the bottom of the channel. This design changes the single airflow direction of the traditional forward airflow channel, significantly improving heat dissipation efficiency.

[0030] Example 4

[0031] Based on Example 1, surface heat dissipation protrusions 6 are provided to increase the heat dissipation area and optimize the heat dissipation effect.

[0032] The surface heat dissipation protrusions 6 are evenly distributed on the outer surface of the outer heat dissipation ring 2. Figure 1 The distribution details of the surface heat dissipation protrusions 6, as well as their height and spacing design features, are shown. The arrangement of the surface heat dissipation protrusions 6 increases the heat dissipation area of ​​the outer heat dissipation ring 2, while optimizing the airflow path on the brake disc surface. The uniform distribution of the protrusions allows the airflow to form a uniform coverage layer on the brake disc surface, avoiding localized airflow concentration or dispersion, thereby improving heat dissipation uniformity.

[0033] In practical applications, when a vehicle brakes, the heat generated by the friction between the brake disc and brake pads is rapidly conducted to the outer edge heat dissipation ring 2 and the center mounting portion 1. Since the center mounting portion 1 and the outer edge heat dissipation ring 2 are integrated, the heat can be quickly transferred to the outer edge heat dissipation ring 2 and dissipated through its internal heat dissipation structure. Airflow first enters the inner air duct structure 4 through the air inlet 9 of the brake disc. The spirally arranged guide vanes 10 create a rotational effect and enhance turbulence in the airflow. Subsequently, the airflow flows radially outward and enters the reverse air duct groove 5. The trapezoidal cross-section design and micropores at the bottom of the reverse air duct groove 5 further enhance the heat dissipation effect of the airflow, while simultaneously forming a reverse airflow circulation path. The characteristic of the reverse airflow circulation path is that the airflow forms a complex flow pattern inside the brake disc, thereby significantly improving heat dissipation efficiency. Furthermore, the surface heat dissipation protrusions 6 increase the heat dissipation area of ​​the outer edge heat dissipation ring 2, optimize the airflow path on the brake disc surface, and further improve heat dissipation performance. The chamfered corner 8 reduces the resistance of the airflow at the edge of the brake disc, allowing the airflow to flow more smoothly and avoiding localized overheating caused by airflow stagnation.

[0034] The brake disc of this invention is suitable for various types of vehicles, and performs particularly well in scenarios involving frequent braking and high-speed driving. Through the above design, this invention solves the problem of low airflow efficiency in the prior art, while meeting the needs of vehicle lightweighting and adapting to the requirements of modern vehicles for convenient component installation.

[0035] It should be noted that all electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device that can be controlled by a computer or other means. The detailed description of known functions and known components is omitted in the specific implementation of this disclosure. In order to ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A brake disc with anti-drag channel for easy heat dissipation, characterized in that, include: The central mounting part (1) is connected to the central mounting part (1) by multiple arc-shaped guide ribs (3). The inner air duct structure (4) is set between the central mounting part (1) and the outer heat dissipation ring (2) and is composed of a single guide plate (10). The reverse air duct groove (5) is set on the inner wall of the outer heat dissipation ring (2), distributed circumferentially and connected to the inner air duct structure (4). The surface heat dissipation protrusions (6) are evenly distributed on the outer surface of the outer heat dissipation ring (2). The air inlet hole (9) is set next to the mounting hole.

2. The anti-draught easy heat dissipation brake disc according to claim 1, characterized in that, The central mounting part (1), the outer heat dissipation ring (2), and the arc-shaped flow guide rib (3) are formed into an integrated structure through a casting process.

3. The brake disc of claim 1, wherein, The guide vanes (10) in the inner air duct structure (4) are spiral-shaped.

4. A reverse-airflow, easily heat-dissipating brake disc according to claim 1, characterized in that, The cross-sectional shape of the reverse air duct groove (5) is similar to a trapezoid, the bottom width of the groove is smaller than the opening width, and the bottom of the groove is provided with several micro-holes.

5. The anti-draught easy heat dissipation brake disc of claim 1, wherein, The outer edge of the outer heat dissipation ring (2) is chamfered (8).

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