Aluminum brake disc with flange structure

By designing gaps, air intake holes, heat dissipation fins, and spiral heat-conducting copper pipes on the brake disc, the problem of slow heat dissipation in existing brake discs has been solved, achieving efficient heat dissipation and stable connection, extending the service life of the brake disc and improving vehicle safety.

CN223648386UActive Publication Date: 2025-12-09NINGBO JIANGJI MASCH CO LTD
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Patent Information

Application Number
CN202520487073.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2025-12-09
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

The poor ventilation and heat dissipation performance of existing brake discs results in slow heat dissipation during continuous braking, affecting the overall cooling effect.

Method used

The design incorporates an aluminum brake disc with a flange structure, utilizing the gap between the first and second disc bodies, air intake holes, heat dissipation fins, and spiral heat-conducting copper pipes to create air convection and phase change heat transfer, thereby improving heat dissipation efficiency.

Benefits of technology

It significantly improves the heat dissipation capacity of the brake discs, rapidly reduces temperature, minimizes brake performance degradation caused by high temperatures, extends service life, and enhances connection stability and vehicle safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an aluminum brake disc with a flange structure, and belongs to the technical field of brake discs. Comprising a brake disc and a cooling mechanism, the brake disc comprises a first disc body and a second disc body, the first disc body and the second disc body are arranged from top to bottom, a gap is reserved between the first disc body and the second disc body, and a plurality of air inlet holes are formed in the surfaces of the first disc body and the second disc body; the cooling mechanism comprises a plurality of heat dissipation fins, the heat dissipation fins are circumferentially distributed in the gap at equal intervals and connected with the first disc body and the second disc body, a heat conduction copper pipe is further arranged in the gap, and the heat conduction copper pipe is connected with the heat dissipation fins; according to the technical scheme, the heat dissipation capacity of the brake disc can be improved, and therefore the performance of the brake disc is improved.
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Description

Technical Field

[0001] This utility model relates to the field of brake disc technology, specifically to an aluminum brake disc with a flange structure. Background Technology

[0002] Brake discs are a crucial component of a vehicle's braking system. They rotate while the vehicle is in motion, and the braking force originates from the brake caliper. Based on their material, brake discs are divided into two types: carbon fiber ceramic brake discs and metal brake discs. The brake disc generates braking torque by clamping it with the brake caliper. When the brake is applied, the caliper clamps the brake disc to slow down or stop the vehicle. However, due to limitations in their ventilation and heat dissipation performance, existing brake discs experience slow heat dissipation during continuous braking, affecting the overall cooling effect of the brake disc. Utility Model Content

[0003] The purpose of this invention is to provide an aluminum brake disc with a flange structure to solve the problem of poor ventilation and heat dissipation performance of existing brake discs, which leads to slow heat dissipation and poor overall cooling effect during continuous braking.

[0004] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0005] An aluminum brake disc with a flange structure, including the brake disc and a cooling mechanism.

[0006] Furthermore, the brake disc includes a first disc body and a second disc body, arranged from top to bottom with a gap between them. Both the first and second disc bodies have several air inlets on their surfaces. This design allows air to enter the gap between the two disc bodies through the air inlets, creating air convection and providing basic conditions for heat dissipation. When the vehicle is in motion, cool outside air can enter through the air inlets, carrying away the heat generated by the brake disc and accelerating heat dissipation.

[0007] Furthermore, the cooling mechanism includes a plurality of heat dissipation fins, which are circumferentially distributed at equal intervals within the gaps and connected to the first disk and the second disk. A heat-conducting copper pipe is also provided within the gaps, and the heat-conducting copper pipe is connected to the heat dissipation fins. The heat dissipation fins increase the heat dissipation area, enabling more efficient heat dissipation into the air. The heat-conducting copper pipe utilizes its excellent thermal conductivity to quickly absorb the heat from the heat dissipation fins and conduct it into the air, thereby synergistically improving heat dissipation efficiency.

[0008] Furthermore, the heat-conducting copper pipe is spiral-shaped, with the outer surface being a copper tube and the interior filled with a wick and coolant. The spiral design increases the contact area and contact time between the copper pipe and the heat dissipation fins and air, enhancing the heat conduction effect. The internal wick and coolant utilize the principle of phase change heat transfer; when absorbing heat, the coolant vaporizes and rises, then condenses and flows back at a lower temperature, repeating this cycle to achieve efficient heat transfer.

[0009] Furthermore, the surface of the heat dissipation fins is provided with several fixing holes, and the heat-conducting copper tube passes through the fixing holes and is fixed inside by thermally conductive adhesive, which ensures that the heat-conducting copper tube is tightly connected to the heat dissipation fins, improves heat conduction efficiency, and at the same time ensures the stability of the structure and prevents the copper tube from separating from the fins during the rotation of the brake disc.

[0010] Furthermore, the height of the heat-conducting copper tube is less than the width of the gap, which ensures that the heat-conducting copper tube can work normally in the gap, and does not obstruct the air flow in the gap due to excessive height, thus ensuring that air convection heat dissipation can proceed smoothly.

[0011] Furthermore, grooves are provided on both sides of the heat dissipation fins. The design of the grooves further increases the surface area of ​​the heat dissipation fins. At the same time, when air flows through them, a special airflow channel can be formed to enhance air turbulence and improve the heat dissipation effect.

[0012] Furthermore, the air inlets are all located between adjacent heat dissipation fins and are not blocked by the heat-conducting copper pipes. This arrangement allows outside air to enter the gap between the two plates without obstruction and make full contact with the heat dissipation fins, ensuring the efficiency of air convection heat dissipation and avoiding insufficient air intake due to obstruction, which would affect heat dissipation.

[0013] Furthermore, a flange is installed at the center of the side of the first disc body. The flange structure facilitates the connection between the brake disc and components such as the wheel hub, improves the stability and reliability of the connection, and ensures that the brake disc can operate stably during operation and transmit braking force.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: This aluminum brake disc with a flange structure significantly improves the heat dissipation capacity of the brake disc by incorporating a gap between the first and second disc bodies, air intake holes, heat dissipation fins, and spiral heat-conducting copper pipes. During vehicle braking, it can quickly dissipate the generated heat, effectively reducing the brake disc temperature, minimizing brake performance degradation caused by high temperatures, improving brake reliability and stability, and extending the service life of the brake disc. Simultaneously, the flange structure design ensures the stability of the connection between the brake disc and the wheel hub, enhancing the overall safety and reliability of the vehicle. Attached Figure Description

[0015] Figure 1This is a three-dimensional structural diagram of an aluminum brake disc with a flange structure disclosed in an embodiment of the present utility model;

[0016] Figure 2 This is an exploded structural diagram of an aluminum brake disc with a flange structure disclosed in an embodiment of the present utility model;

[0017] Figure 3 for Figure 2 A magnified schematic diagram of structure A in the middle.

[0018] In the diagram: 100, brake disc; 1001, first disc body; 1002, second disc body; 1003, flange; 1004, air inlet; 200, cooling mechanism; 2001, heat dissipation fins; 2002, heat-conducting copper pipe; 2004, groove; 2005, mounting hole. Detailed Implementation

[0019] Implementation 1

[0020] 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.

[0021] Please see Figure 1 - Figure 3 This utility model provides a technical solution: an aluminum brake disc with a flange structure, including a brake disc 100 and a cooling mechanism 200.

[0022] In one embodiment of the present invention, the brake disc 100 further includes a first disc body 1001 and a second disc body 1002, arranged from top to bottom with a gap between them. A plurality of air inlets 1004 are provided on the surfaces of both the first disc body 1001 and the second disc body 1002. This structural design allows air to enter the gap between the two disc bodies through the air inlets 1004, forming air convection and providing basic conditions for heat dissipation. When the vehicle is in motion, cold outside air can enter through the air inlets 1004, carrying away the heat generated by the brake disc 100 and accelerating the heat dissipation rate.

[0023] As an embodiment of the present invention, the cooling mechanism 200 further includes a plurality of heat dissipation fins 2001, which are circumferentially distributed at equal intervals in the gap and connected to the first disk 1001 and the second disk 1002. A heat-conducting copper pipe 2002 is also provided in the gap and is connected to the heat dissipation fins 2001. The heat dissipation fins 2001 increase the heat dissipation area and can dissipate heat into the air more efficiently. The heat-conducting copper pipe 2002 utilizes its excellent thermal conductivity to quickly absorb the heat from the heat dissipation fins 2001 and conduct it into the air, thereby improving the heat dissipation efficiency in a synergistic manner.

[0024] In one embodiment of the present invention, the heat-conducting copper pipe 2002 is further shaped into a spiral, with the outer surface being a copper pipe and the interior filled with a wick and coolant. The spiral design increases the contact area and contact time between the copper pipe and the heat dissipation fins 2001 and the air, thereby enhancing the heat conduction effect. The internal wick and coolant utilize the principle of phase change heat transfer; when absorbing heat, the coolant vaporizes and rises, then condenses and flows back at a lower temperature, repeating this cycle to achieve efficient heat transfer.

[0025] As an embodiment of the present invention, the surface of the heat dissipation fin 2001 is provided with a plurality of fixing holes 2005, and the heat-conducting copper tube 2002 passes through the fixing holes 2005 and is fixed therein by thermally conductive adhesive, which ensures that the heat-conducting copper tube 2002 is tightly connected to the heat dissipation fin 2001, improves the heat conduction efficiency, and at the same time ensures the stability of the structure and prevents the copper tube from separating from the fin during the rotation of the brake disc 100.

[0026] As an embodiment of the present invention, the height of the heat-conducting copper tube 2002 is smaller than the width of the gap, which ensures that the heat-conducting copper tube 2002 can work normally in the gap, and does not obstruct the air flow in the gap due to excessive height, thus ensuring that air convection heat dissipation can proceed smoothly.

[0027] As an embodiment of the present invention, the heat dissipation fins 2001 are further provided with grooves 2004 on both sides. The design of the grooves 2004 further increases the surface area of ​​the heat dissipation fins 2001. At the same time, when air flows through, a special airflow channel can be formed to enhance air turbulence and improve the heat dissipation effect.

[0028] As an embodiment of the present invention, the air inlets 1004 are all located between adjacent heat dissipation fins 2001 and are not blocked by the heat-conducting copper pipes 2002. This arrangement allows outside air to enter the gap between the two plates without obstruction and make full contact with the heat dissipation fins 2001, ensuring the efficiency of air convection heat dissipation and avoiding insufficient air intake due to obstruction, which would affect heat dissipation.

[0029] As an embodiment of the present invention, a flange 1003 is further installed at the center of the side of the first disc body 1001. The flange 1003 structure facilitates the connection between the brake disc 100 and components such as the wheel hub, improves the stability and reliability of the connection, and ensures that the brake disc 100 can operate stably during operation and transmit braking force.

[0030] Example 2

[0031] 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.

[0032] A certain compact family sedan is equipped with the aluminum brake disc with flange structure described in this utility model. Please refer to [link / reference]. Figure 1 - Figure 3 This utility model provides a technical solution: an aluminum brake disc with a flange structure, including a brake disc 100 and a cooling mechanism 200.

[0033] As an embodiment of the present invention, the first disc body 1001 and the second disc body 1002 of the brake disc are both made of high-strength aluminum alloy and manufactured through precision casting and machining processes. The gap width between the two disc bodies is designed to be 15mm. Air inlets 1004 are evenly distributed on the surface of the disc bodies, with a diameter of 8mm, and the number of air inlets on each disc body is 30. The heat dissipation fins 2001 are made of aluminum alloy with good thermal conductivity, with a thickness of 3mm and a height the same as the gap, and are evenly distributed circumferentially within the gap, totaling 20 fins. The spiral heat-conducting copper tube 2002 has an outer diameter of 6mm, and is filled with coolant with deionized water as the main component and a copper-based liquid absorbent core. The spiral pitch is 10mm, and the height of the copper tube is 12mm, which is less than the gap width.

[0034] As one embodiment of the present invention, the aluminum brake disc with a flange structure is further installed on the inner side of the wheel and tightly connected to the wheel hub. Taking a compact car as an example, the flange 1003 of the brake disc is connected to the corresponding mounting holes on the wheel hub by bolts. During installation, first align the flange of the brake disc with the mounting holes on the wheel hub, ensuring that the holes are completely aligned, and then insert the bolts in sequence. Use a torque wrench to tighten the bolts to the specified torque value. Generally, the bolt tightening torque for cars is between 80 and 120 N·m, ensuring that the brake disc is firmly installed and will not loosen during vehicle operation.

[0035] In one embodiment of the present invention, after the brake disc is installed, the brake calipers are installed on both sides of the brake disc. The brake pads inside the brake calipers maintain a suitable gap with the friction surface of the brake disc, generally between 0.5 and 1.5 mm. When the driver depresses the brake pedal, the piston inside the brake caliper pushes the brake pads towards the brake disc, causing the brake pads to clamp tightly against the brake disc, thereby generating braking force.

[0036] As an embodiment of the present invention, further, during braking, the brake disc and brake caliper generate a large amount of heat through friction. Outside cold air enters the gap between the two discs through the air intake 1004, comes into contact with the heat dissipation fins 2001, and carries away some of the heat. Simultaneously, the heat from the brake disc and heat dissipation fins 2001 is conducted to the heat-conducting copper pipe 2002. The coolant inside the pipe vaporizes upon heating, and the vapor rises to a lower temperature area within the pipe before condensing into liquid. This liquid then flows back through the wick, continuously circulating and dissipating heat into the air, effectively reducing the temperature of the brake disc. During this process, the flange 1003 securely connects the brake disc to the wheel hub, ensuring the stability of the brake disc during rotation.

Claims

1. An aluminum brake disc with a flange structure, characterized in that, include: Brake disc (100), the brake disc (100) includes a first disc body (1001) and a second disc body (1002), the first disc body (1001) and the second disc body (1002) are arranged from top to bottom, and there is a gap between the first disc body (1001) and the second disc body (1002), and a plurality of air inlet holes (1004) are opened on the surface of the first disc body (1001) and the second disc body (1002). The cooling mechanism (200) includes a plurality of heat dissipation fins (2001), and the plurality of heat dissipation fins (2001) are circumferentially distributed at equal distances in the gap and connected to the first disk (1001) and the second disk (1002). A heat-conducting copper pipe (2002) is also provided in the gap, and the heat-conducting copper pipe (2002) is connected to the heat dissipation fins (2001).

2. The aluminum brake disc with flange structure according to claim 1, characterized in that, The heat-conducting copper tube (2002) is spiral-shaped, and the outside of the heat-conducting copper tube (2002) is a copper tube. The inside of the heat-conducting copper tube (2002) is filled with a liquid-absorbing core and coolant.

3. The aluminum brake disc with flange structure according to claim 1, characterized in that, The surface of the heat dissipation fins (2001) has several fixing holes (2005), and the heat-conducting copper tube (2002) passes through the fixing holes (2005) and is fixed inside them by thermally conductive adhesive.

4. The aluminum brake disc with flange structure according to claim 1, characterized in that, The height of the heat-conducting copper tube (2002) is less than the width of the gap.

5. The aluminum brake disc with flange structure according to claim 1, characterized in that, The heat dissipation fins (2001) are provided with grooves (2004) on both sides.

6. The aluminum brake disc with flange structure according to claim 1, characterized in that, The air inlets (1004) are all located between adjacent heat dissipation fins (2001) and are not blocked by the heat-conducting copper pipes (2002).

7. The aluminum brake disc with flange structure according to claim 1, characterized in that, A flange (1003) is installed at the center of the side of the first disc body (1001).