Ventilated brake disc
By designing a heat dissipation cavity, rotating fan blades, guide plate, heat conduction strip, and aluminum alloy heat dissipation protrusions on the brake disc, the problem of poor heat dissipation of ventilated brake discs is solved, and efficient heat dissipation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-03-17
AI Technical Summary
Existing ventilated brake discs have poor heat dissipation performance and low heat dissipation efficiency, and cannot effectively dissipate heat from the brake disc itself.
A ventilated brake disc was designed, which includes a heat dissipation cavity between the upper and lower discs, an internal rotating fan blade and guide plate, and an external heat-conducting strip and heat-conducting protrusion. Combined with heat dissipation holes and heat dissipation protrusions made of aluminum alloy, the heat dissipation effect is enhanced.
It enables rapid heat dissipation of the brake disc, improves heat dissipation efficiency, and meets daily usage needs.
Smart Images

Figure CN224003086U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of brake disc technology, specifically a ventilated brake disc. Background Technology
[0002] A brake disc, also known as a brake pad, is a friction pair on a disc brake. It rotates along with the wheels when the vehicle is moving. When the vehicle brakes, the caliper clamps the brake disc and applies friction to slow down or stop the vehicle. A qualified brake disc, in addition to having the required strength and rigidity, must also have the highest possible and most stable coefficient of friction, as well as appropriate wear resistance, heat resistance, heat dissipation, and heat capacity.
[0003] This application improves upon the existing technology. In the existing technology, the existing ventilated brake disc simply opens up the inside of an ordinary brake disc to increase the heat dissipation efficiency of the brake disc through an open structure. However, a single ventilation structure cannot effectively dissipate heat from the brake disc itself, resulting in poor heat dissipation effect and low heat dissipation efficiency.
[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0005] The purpose of this invention is to provide a ventilated brake disc to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a ventilated brake disc, including a lower disc, an upper disc on the top of the lower disc, a heat dissipation cavity formed between the upper and lower discs, a rotating fan blade rotatably disposed at the center of the heat dissipation cavity, a plurality of first guide plates arranged in a ring array on the outer side of the rotating fan blade, a heat-conducting strip fixedly disposed on the outer wall of the first guide plate, a second guide plate disposed between two adjacent first guide plates, and a plurality of heat-conducting protrusions fixedly disposed on the outer wall of the second guide plate.
[0007] As a further embodiment of this utility model: the upper surface of the upper plate is provided with a plurality of heat dissipation holes in a ring array, and the top of the upper plate is fixedly connected to the inner side of the heat dissipation holes.
[0008] As a further embodiment of this utility model: a mounting hole is provided at the center of the mounting plate, and multiple threaded grooves are provided in a ring array on the outer side of the mounting hole.
[0009] As a further embodiment of this utility model: the number of threaded grooves is four, and the inner wall of the threaded grooves is provided with an internal thread structure.
[0010] As a further embodiment of this utility model: an annular groove is provided on the outer wall of the upper disc, and multiple heat dissipation protrusions are fixedly provided on the inner wall of the annular groove.
[0011] As a further embodiment of this utility model: the heat dissipation bump is semi-circular in shape and is made of aluminum alloy.
[0012] This utility model has the following beneficial effects:
[0013] (1) Through the structural design of upper disc, lower disc, heat dissipation cavity, first guide plate, second guide plate, rotating fan blade, heat conduction strip and heat conduction protrusion, the heat generated by the brake disc can be quickly dissipated, with good heat dissipation effect and high heat dissipation efficiency. This solves the problem that the existing ventilated brake discs simply open up the inside of the ordinary brake disc and increase the heat dissipation efficiency of the brake disc through an open structure, but the single ventilation structure cannot effectively dissipate heat from the brake disc itself, resulting in poor heat dissipation effect and low heat dissipation efficiency.
[0014] (2) By setting up annular grooves, heat dissipation protrusions and heat dissipation holes, the ventilation effect of the heat dissipation cavity can be improved by using multiple heat dissipation holes in combination, thereby achieving the purpose of improving heat dissipation effect. At the same time, multiple heat dissipation protrusions made of aluminum alloy are set on the outer wall of the upper disc, which can further conduct the heat contained in the upper disc itself, thereby further improving the heat dissipation efficiency of the brake disc, and thus better meeting the daily use needs. Attached Figure Description
[0015] Figure 1 This is a partial three-dimensional schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a top view of a partial structure of the present invention;
[0017] Figure 3 This is a partial side view of the structure of this utility model;
[0018] Figure 4 This is a partial structural diagram of the heat dissipation cavity, which is the main feature of this utility model.
[0019] Figure 5 This is a partial structural diagram of the heat-conducting strip and heat-conducting protrusion, which are the main features of this utility model.
[0020] In the diagram: 1. Mounting hole; 2. Upper plate; 3. Lower plate; 4. Mounting plate; 5. Annular groove; 6. Heat dissipation protrusion; 7. Heat dissipation hole; 8. Threaded groove; 9. Heat dissipation cavity; 10. First guide plate; 11. Second guide plate; 12. Rotating fan blade; 13. Heat conduction strip; 14. Heat conduction protrusion. Detailed Implementation
[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.
[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0023] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Please see Figure 1-5 An embodiment of this utility model is provided: a ventilated brake disc, including a lower disc 3, an upper disc 2 is provided on the top of the lower disc 3, a heat dissipation cavity 9 is formed between the upper disc 2 and the lower disc 3, a rotating fan blade 12 is rotatably provided at the center of the heat dissipation cavity 9, a plurality of first guide plates 10 are arranged in a ring array on the outer side of the rotating fan blade 12, a heat conduction strip 13 is fixedly provided on the outer wall of the first guide plate 10, a second guide plate 11 is provided between two adjacent first guide plates 10, and a plurality of heat conduction protrusions 14 are fixedly provided on the outer wall of the second guide plate 11;
[0027] Specifically, such as Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, during use, the heat dissipation cavity 9 facilitates the dissipation of heat generated by the brake disc. Simultaneously, the airflow within the heat dissipation cavity 9 drives the rotating fan blade 12 to rotate. The airflow generated by the rotating fan blade 12, in conjunction with the first guide plate 10 and the second guide plate 11, can improve the heat dissipation effect. Furthermore, the combined use of multiple heat-conducting strips 13 and heat-conducting protrusions 14 can conduct the heat contained in the upper disc 2 and lower disc 3, further enhancing the heat dissipation effect. This solves the problem that existing ventilated brake discs simply open up the interior of a regular brake disc to increase its heat dissipation efficiency through an open structure, but the single ventilation structure cannot effectively dissipate heat from the brake disc itself, resulting in poor heat dissipation and low heat dissipation efficiency.
[0028] The upper surface of the upper disc 2 has multiple heat dissipation holes 7 arranged in a ring array. The top of the upper disc 2 is fixedly connected to the inner side of the heat dissipation holes 7. The upper surface of the upper disc 2 has multiple heat dissipation holes 7 arranged in a ring array. The top of the upper disc 2 is fixedly connected to the inner side of the heat dissipation holes 7. The center of the mounting plate 4 has a mounting hole 1. The outer side of the mounting hole 1 has multiple threaded grooves 8 arranged in a ring array. There are four threaded grooves 8. The inner wall of the threaded grooves 8 is provided with an internal thread structure. The outer wall of the upper disc 2 has an annular groove 5. The inner wall of the annular groove 5 is fixedly provided with multiple heat dissipation protrusions 6. The outer wall of the upper disc 2 has an annular groove 5. The inner wall of the annular groove 5 is fixedly provided with multiple heat dissipation protrusions 6.
[0029] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, during use, the ventilation effect of the heat dissipation cavity 9 can be improved by the combined use of multiple heat dissipation holes 7, thereby achieving the purpose of improving heat dissipation. At the same time, multiple heat dissipation protrusions 6 made of aluminum alloy are provided on the outer wall of the upper disc 2, which can further conduct the heat contained in the upper disc 2 itself, thereby further improving the heat dissipation efficiency of the brake disc and better meeting the daily use needs.
[0030] Working Principle: In this application, the heat dissipation cavity 9 facilitates the dissipation of heat generated by the brake disc. Simultaneously, the airflow within the heat dissipation cavity 9 drives the rotating fan blades 12 to rotate. The airflow generated by the rotating fan blades 12, combined with the first guide plate 10 and the second guide plate 11, enhances heat dissipation. Furthermore, the combined use of multiple heat-conducting strips 13 and heat-conducting protrusions 14 conducts heat contained in the upper disc 2 and lower disc 3, further improving heat dissipation. Additionally, the combined use of multiple heat dissipation holes 7 improves the ventilation of the heat dissipation cavity 9, thereby enhancing heat dissipation. Moreover, multiple heat dissipation protrusions 6 made of aluminum alloy are provided on the outer wall of the upper disc 2, further conducting heat contained in the upper disc 2, thereby further improving the heat dissipation efficiency of the brake disc and better meeting daily usage needs.
[0031] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. At the same time, the electrical components mentioned in this application are all connected to an external power supply and control switch when in use. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, this utility model will not explain the control method and circuit connection in detail. Moreover, the external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.
[0032] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0033] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.
Claims
1. A ventilated brake disc comprising a lower disc (3), characterised in that: The top of the lower disc (3) is provided with an upper disc (2), a heat dissipation cavity (9) is formed between the upper disc (2) and the lower disc (3), a rotating fan blade (12) is rotatably arranged at the center of the heat dissipation cavity (9), a plurality of first guide plates (10) are annularly arranged on the outer side of the rotating fan blade (12), a heat conduction strip (13) is fixedly arranged on the outer wall of the first guide plate (10), a second guide plate (11) is arranged between adjacent two first guide plates (10), and a plurality of heat conduction protrusions (14) are fixedly arranged on the outer wall of the second guide plate (11).
2. A vented brake disc according to claim 1, characterised in that: The upper surface of the upper disc (2) is annularly provided with a plurality of heat dissipation holes (7), and the top of the upper disc (2) is fixedly connected with a mounting disc (4) on the inner side of the heat dissipation hole (7).
3. A vented brake disc according to claim 2, wherein: The center of the mounting disc (4) is provided with a mounting hole (1), and the outer side of the mounting hole (1) is annularly provided with a plurality of threaded grooves (8).
4. A vented brake disc according to claim 3, wherein: The number of the threaded grooves (8) is four, and the inner wall of the threaded groove (8) is provided with an internal thread structure.
5. A vented brake disc according to claim 1, wherein: An annular groove (5) is formed on the outer wall of the upper disc (2), and a plurality of heat dissipation protrusions (6) are fixedly arranged on the inner wall of the annular groove (5).
6. A vented brake disc according to claim 5, wherein: The shape of the heat dissipation protrusion (6) is semicircular, and the heat dissipation protrusion (6) is made of aluminum alloy material.