A type of car brake disc with good heat dissipation
By designing a heat dissipation mechanism with ventilation slots, reinforcing rings, and heat sinks on the brake disc, the problems of poor heat dissipation and easy cracking of the brake disc are solved, achieving efficient heat dissipation and structural reinforcement, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUHUAN CHONGRONG MACHINERY CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-30
AI Technical Summary
Existing brake discs have poor heat dissipation and are prone to cracking due to inadequate heat dissipation.
A heat dissipation mechanism including ventilation slots, reinforcing rings, heat sinks, and ventilation holes was designed. The structural strength was improved by hot forging and integral molding process, and centrifugal force was used to accelerate air circulation. Combined with silicon carbide coating to reduce friction loss, efficient heat dissipation was achieved.
It improves the heat dissipation of the brake disc, enhances structural strength, avoids debris residue, reduces heat fade, and extends the service life of the brake disc.
Smart Images
Figure CN224433194U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of brake disc technology, and in particular to an automotive brake disc with good heat dissipation. Background Technology
[0002] A brake disc, simply put, is a round plate that rotates when the car is moving. The brake caliper clamps the brake disc to generate braking torque; when you press the brake pedal, it's the caliper that clamps the brake disc to slow down or stop the car. Brake discs offer better braking performance and are easier to maintain than drum brakes.
[0003] Most existing brake discs have multiple ventilation holes for heat dissipation. However, relying solely on ventilation holes for heat dissipation is not only ineffective but can also easily cause the brake disc to crack. Utility Model Content
[0004] Therefore, it is necessary to provide a car brake disc with better heat dissipation to address the problem of poor heat dissipation and the tendency for brake discs to crack.
[0005] A car brake disc with good heat dissipation includes: a ventilated disc, a central disc fixedly connected to one side of the ventilated disc, a mounting through hole centrally located on the surface of the central disc, mounting holes evenly distributed on the surface of the central disc, and a heat dissipation mechanism provided on the ventilated disc; the heat dissipation mechanism includes a ventilation groove on the side of the ventilated disc, a plurality of reinforcing rings evenly distributed in the ventilation groove, and a ventilation hole penetrating the ventilated disc on the surface of the ventilated disc, the ventilation hole passing through the reinforcing ring.
[0006] In one embodiment, the reinforcing ring is arc-shaped, and the reinforcing ring has rounded corners near the side of the ventilation disc.
[0007] In one embodiment, chip removal grooves are provided on both sides of the ventilation disc, and the chip removal grooves are spaced apart from the reinforcing ring.
[0008] In one embodiment, a plurality of heat sinks are evenly arranged inside the ventilation slot, and the heat sinks are disposed at the intervals of the reinforcing rings.
[0009] In one embodiment, the heat sink is configured as a thin sheet, and the perimeter of the heat sink increases sequentially from the inside to the outside.
[0010] In one embodiment, the cross-section of the chip removal groove is an inverted trapezoid, and its opening width gradually narrows inward from the disk surface.
[0011] In one embodiment, the heat sink is arranged in an arc shape, and a gap is left between the heat sink and the reinforcing ring.
[0012] In one embodiment, the walls of the ventilation holes are covered with a silicon carbide coating with a thickness of 50-80 μm.
[0013] Beneficial effects
[0014] A heat dissipation mechanism is set up. When the ventilation plate rotates, the ventilation plate drives the ventilation slot to rotate. The ventilation slot cuts the air, allowing the air to flow through both sides of the ventilation slot, thereby dissipating heat from the ventilation plate. The ventilation plate is also reinforced by a reinforcing ring to improve its structural strength. The ventilation holes are opened inside the reinforcing ring, which does not affect the structural strength and improves the heat dissipation effect.
[0015] Heat sinks are installed to further improve the heat dissipation effect of the ventilated disc, and the chip removal grooves are used to throw out the debris generated by the brake pads to avoid debris residue. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the central disk and mounting through hole of this utility model;
[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0020] Figure 4 This is a schematic diagram of the internal structure of the ventilation slot of this utility model.
[0021] Figure label:
[0022] 100. Ventilation plate; 110. Center plate; 111. Mounting through hole; 112. Mounting hole; 200. Heat dissipation mechanism; 210. Ventilation slot; 211. Reinforcing ring; 212. Heat sink; 213. Ventilation hole; 220. Chip removal slot. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0028] The following is combined Figures 1-4 This invention describes a car brake disc with good heat dissipation.
[0029] In one embodiment, a car brake disc with good heat dissipation includes: a ventilated disc 100, a central disc 110 fixedly connected to one side of the ventilated disc 100, a mounting through hole 111 centrally located on the surface of the central disc 110, mounting holes 112 uniformly distributed on the surface of the central disc 110, and a heat dissipation mechanism 200 provided on the ventilated disc 100; the heat dissipation mechanism 200 includes a ventilation groove 210 formed on the side of the ventilated disc 100, a plurality of reinforcing rings 211 uniformly distributed in the ventilation groove 210, and a ventilation hole 213 penetrating the ventilated disc 100 on the surface of the ventilated disc 100, the ventilation hole 213 passing through the reinforcing ring 211.
[0030] In this embodiment, the ventilation disc 100 and the central disc 110 are integrally formed by hot forging to ensure structural rigidity; the mounting through hole 111 is used for axial positioning, and the circumferentially distributed mounting holes 112 enable bolt fixing to the hub; the ventilation grooves 210 on the heat dissipation mechanism 200 are radially distributed along the disc body, the reinforcing ring 211 forms a supporting skeleton in the groove, and the through ventilation hole 213 establishes an axial airflow channel. Centrifugal force is used to accelerate air circulation, and the ventilation hole 213 and the ventilation groove 210 form a three-dimensional heat dissipation network, improving the heat dissipation effect of the ventilation disc 100.
[0031] like Figure 4 As shown, the reinforcing ring 211 is arc-shaped, and the reinforcing ring 211 has rounded corners near the side of the ventilation plate 100.
[0032] In this embodiment, the rounded corners are shot-peened and the rounded corner areas are covered with a nickel-based wear-resistant coating with a thickness of 20-30μm. The wear-resistant coating reduces airflow friction loss.
[0033] like Figure 3 As shown, chip removal grooves 220 are provided on both sides of the ventilation disc 100, and the chip removal grooves 220 are spaced apart from the reinforcing rings 211. The cross-section of the chip removal groove 220 is an inverted trapezoid, and its opening width gradually narrows inward from the disc surface.
[0034] In this embodiment, the inverted trapezoidal chip discharge groove 220 accelerates chip discharge, and the chip discharge groove 220 is spaced apart from the reinforcing ring 211 to avoid weakening the structural strength. The slope guide utilizes centrifugal force to achieve self-cleaning and avoids brake pad chip residue.
[0035] like Figure 4 As shown, a plurality of heat sinks 212 are evenly arranged inside the ventilation slot 210, and the heat sinks 212 are arranged at the intervals of the reinforcing rings 211. The heat sinks 212 are thin sheets, and the circumference of the heat sinks 212 increases from the inside to the outside.
[0036] In this embodiment, the heat sink 212 is a 0.8mm thick stainless steel sheet, and the perimeter gradient change adapts to the airflow pressure attenuation, thereby improving the heat dissipation effect.
[0037] like Figure 4 As shown, the heat sink 212 is arranged in an arc shape, and there is a gap between the heat sink 212 and the reinforcing ring 211.
[0038] In this embodiment, air enters through the gap and exchanges heat with the heat sink 212 to dissipate heat from the ventilation plate 100.
[0039] like Figure 1 As shown, the walls of the ventilation holes 213 are covered with a silicon carbide coating with a thickness of 50-80 μm.
[0040] In this embodiment, a coating is applied to reduce the coefficient of friction, decrease airflow loss, and further improve heat dissipation.
[0041] Working principle: The ventilation disc 100 is fixed to the car wheel hub with bolts. When the car is moving, the brake pads clamp the ventilation disc 100 to achieve braking. When the car is moving, the reinforcing ring 211 rotates with the ventilation disc 100, allowing air to enter the ventilation groove 210 and exchange heat with the heat sink 212 and the reinforcing ring 211 to dissipate heat from the ventilation disc 100, reduce the heat accumulation of the ventilation disc 100 during braking, and avoid brake fade.
[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0043] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A car brake disc with good heat dissipation effect, characterized in that, include: A ventilation plate (100) is fixedly connected to a central plate (110) on one side. A mounting through hole (111) is provided in the center of the surface of the central plate (110). Mounting holes (112) are evenly provided on the surface of the central plate (110). A heat dissipation mechanism (200) is provided on the ventilation plate (100). The heat dissipation mechanism (200) includes a ventilation groove (210) on the side of the ventilation plate (100), a plurality of reinforcing rings (211) are evenly distributed in the ventilation groove (210), and a ventilation hole (213) is provided on the surface of the ventilation plate (100) to penetrate the ventilation plate (100), and the ventilation hole (213) passes through the reinforcing ring (211).
2. The automotive brake disc with good heat dissipation effect according to claim 1, characterized in that, The reinforcing ring (211) is arc-shaped, and the reinforcing ring (211) has rounded corners near the side of the ventilation plate (100).
3. The automotive brake disc with good heat dissipation effect according to claim 1, characterized in that, The ventilation disc (100) has chip removal grooves (220) on both sides, and the chip removal grooves (220) are spaced apart from the reinforcing ring (211).
4. The automotive brake disc with good heat dissipation effect according to claim 1, characterized in that, Multiple heat sinks (212) are evenly arranged inside the ventilation slot (210), and the heat sinks (212) are arranged at the intervals of the reinforcing ring (211).
5. The automotive brake disc with good heat dissipation effect according to claim 4, characterized in that, The heat sink (212) is arranged in the form of a thin sheet, and the circumference of the heat sink (212) increases sequentially from the inside to the outside.
6. The automotive brake disc with good heat dissipation effect according to claim 3, characterized in that, The cross-section of the chip removal groove (220) is an inverted trapezoid, and its opening width gradually narrows from the disk surface inward.
7. The automotive brake disc with good heat dissipation effect according to claim 4, characterized in that, The heat sink (212) is arranged in an arc shape, and there is a gap between the heat sink (212) and the reinforcing ring (211).
8. The automotive brake disc with good heat dissipation effect according to claim 1, characterized in that, The ventilation hole (213) is covered with a silicon carbide coating with a thickness of 50-80 μm.