Brake disc

Abstract

The brake disc comprises a circular disc body, the disc body is provided with an installation part, a supporting part, a heat dissipation part and a brake part which are sequentially distributed from inside to outside and integrally formed, and the surface of the heat dissipation part is provided with a plurality of installation grooves penetrating through the disc body in the axial direction. The disc body is provided with a plurality of mounting grooves, the plurality of mounting grooves are distributed in a circumferential array around the axis of the disc body, the disc body further comprises cooling fins embedded in the mounting grooves in a one-to-one correspondence mode, each cooling fin is provided with a plurality of first cooling holes, and the supporting part comprises supporting arms with the same number as the mounting grooves; the part, located between every two adjacent mounting grooves, of the heat dissipation part forms a connecting part, the inner ends of the supporting arms are connected with the mounting parts, and the outer ends of the supporting arms are connected with the connecting parts in a one-to-one correspondence mode. The brake disc is simple in structure and convenient to produce, the structural strength of the brake disc can be ensured while heat dissipation is ensured, the braking effect and the limit stress of the brake disc under high-strength work are improved, and the practicability and the safety of the brake disc are improved.

Description

Technical Field

[0001] The utility model relates to a brake disc, which is applicable to the technical field of vehicle parts. Background Art

[0002] Brake discs are used in braking systems on vehicles like bicycles and mountain bikes. By attaching the brake disc to the vehicle's wheel axle and clamping it with a brake caliper, the disc's rotational speed is reduced, indirectly reducing the wheel's speed, thereby slowing or stopping the vehicle. Existing brake discs are typically made of stainless steel to ensure structural strength. However, stainless steel has poor heat dissipation properties. Frequent braking during downhill driving or racing, for example, creates significant heat that is difficult to dissipate quickly. This not only affects braking effectiveness but can also reduce the disc's ultimate stress, leading to damage and potentially posing a serious safety hazard to the user. Utility Model Content

[0003] In order to solve the defects of the above-mentioned prior art, the present invention proposes a brake disc.

[0004] The technical solution adopted by the present invention is: a brake disc, including a circular disc body, the disc body having a mounting portion for connecting to a vehicle, a supporting portion, a heat dissipation portion for heat dissipation, and a brake portion, which are distributed in sequence from the inside to the outside and are integrally formed. The surface of the heat dissipation portion is provided with a plurality of mounting grooves formed through the axial direction of the disc body, and the plurality of mounting grooves are arranged in a circular array around the axis of the disc body. The disc body also includes heat dissipation fins embedded in the mounting grooves one by one, and each heat dissipation fin is provided with a plurality of first heat dissipation holes. The supporting portion includes support arms whose number is the same as the number of the mounting grooves. The portion of the heat dissipation portion located between each two adjacent mounting grooves constitutes a connecting portion. The inner end of the support arm is connected to the mounting portion, and the outer end of the support arm is connected to the connecting portion one by one. When in use, the brake disc is mounted on the vehicle's wheel axle via the mounting portion, with the support portion providing structural support. The brake caliper then clamps the brake portion to achieve braking. A heat dissipation portion is provided between the brake portion and the support portion, and a mounting slot for a heat sink is provided on the heat dissipation portion. This facilitates the conduction of heat generated by the brake portion through the heat sink. A plurality of first heat dissipation holes are provided on the heat sink to quickly dissipate the heat into the air. Furthermore, the heat sink and the disc body are separated, making it easy to configure the heat sink with a material having better thermal conductivity, thereby more quickly dissipating the heat generated by the brake portion during braking. Furthermore, the support arm is connected to the connection between two adjacent mounting slots, which prevents the mounting slots from affecting the structural strength of the disc body. This ensures the structural strength of the brake disc while improving its heat dissipation performance, preventing the heat generated by braking from affecting the braking effect and structural strength of the disc.

[0005] Furthermore, the support arms are arranged in a circular array around the axis of the disc body, and each support arm is inclined from the inside to the outside toward the direction of rotation of the wheel axle when the vehicle moves forward. This can ensure that the brake disc is subjected to uniform and stable force while improving its pressure resistance, thereby improving the structural strength of the brake disc.

[0006] Furthermore, a second heat dissipation hole is provided at the outer end of each support arm, which can form a certain barrier to prevent heat from being conducted from the connecting portion to the support arm, thereby improving heat dissipation and structural stability.

[0007] Furthermore, each mounting slot has an inner wall provided with a raised portion for supporting a heat sink, and the heat sink is embedded in the mounting slot and abuts against the raised portion. Optionally, each mounting slot has at least two heat sinks embedded in it, with the at least two heat sinks located on either side of the raised portion, and the at least two heat sinks are connected by rivets, with the raised portion providing support for the heat sinks on either side, so that the heat sinks on either side clamp the raised portion in the middle, and the heat sinks are locked by the rivets so that the heat sinks can be fixed in the mounting slot to prevent them from falling out. Optionally, the raised portion is provided with an adhesive material so that when the heat sink is inserted into the mounting slot, it can adhere to the raised portion to prevent the heat sink from falling out.

[0008] Furthermore, a plurality of third heat dissipation holes are provided on the surface of the brake part, which not only increases the friction between the brake part and the brake caliper and improves the braking effect, but also improves the heat dissipation performance of the brake part and further improves the heat dissipation effect of the brake disc.

[0009] Furthermore, the height of the heat dissipation part surface is lower than the height of the brake part surface, and the heat dissipation part surface is sprayed with fluorescent paint to reflect light at night and improve the safety of night driving.

[0010] Furthermore, the material of the disc body is stainless steel, and the material of the heat sink is aluminum alloy. The stainless steel material improves the structural strength of the disc body, while the aluminum alloy material improves the thermal conductivity of the heat sink, thereby ensuring the braking performance and heat dissipation effect of the brake disc.

[0011] Due to the application of the above technical solution, the present invention has the following advantages over the prior art:

[0012] The brake disc in the present invention has a simple structure and is easy to produce. A heat dissipation portion is provided between the brake portion and the support portion, and a mounting groove for embedding a heat sink is opened. At the same time, a first heat dissipation hole is opened on the heat sink so that the heat generated by the brake portion can be quickly conducted and dissipated into the air. In addition, a connecting portion connecting the support arms is formed between adjacent mounting grooves, so that the structural strength of the brake disc can be ensured while heat dissipation is ensured, thereby improving the braking effect and ultimate stress of the brake disc under high-intensity operation, thereby improving its practicality and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0014] Figure 1 It is a structural diagram of an embodiment of the utility model;

[0015] Figure 2 yes Figure 1 A schematic structural diagram of the disc body in the embodiment shown;

[0016] Figure 3 yes Figure 1 A schematic structural diagram of the heat sink in the embodiment shown;

[0017] The following are the descriptions of the reference numerals:

[0018] 1. Disc body; 2. Mounting part; 3. Support part; 31. Support arm; 311. Second heat dissipation hole; 4. Heat dissipation part; 41. Mounting groove; 411. Raised part; 42. Connecting part; 5. Brake part; 51. Third heat dissipation hole; 6. Heat sink; 61. First heat dissipation hole. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0020] In the description of this utility model, it should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the technical features involved in the different embodiments of this utility model described below may be combined with one another as long as they do not conflict with one another.

[0021] Reference Attachment Figure 1-3The brake disc in this embodiment includes a circular disc body 1, which has a mounting portion 2 for connecting to a vehicle, a supporting portion 3, a heat dissipation portion 4 for heat dissipation, and a brake portion 5, which are distributed in sequence from the inside to the outside and are integrally formed. The surface of the heat dissipation portion 4 is provided with a plurality of mounting grooves 41 that penetrate in the axial direction of the disc body 1. The plurality of mounting grooves 41 are arranged in a circular array around the axis of the disc body 1. The disc body 1 also includes heat dissipation fins 6 that are embedded in the mounting grooves 41 one by one, and each heat dissipation fin 6 is provided with a plurality of first heat dissipation holes 61. The supporting portion 3 includes support arms 31 whose number is the same as the number of the mounting grooves 41. The portion of the heat dissipation portion 4 located between each two adjacent mounting grooves 41 constitutes a connecting portion 42. The inner end of the support arm 31 is connected to the mounting portion 2, and the outer end of the support arm 31 is connected to the connecting portion 42 one by one. When in use, the brake disc is mounted on the vehicle axle through the mounting portion 2, and the support portion 3 provides structural support, and then the brake caliper clamps the brake portion 5 to achieve braking. Specifically, the surface of the mounting portion 2 is provided with six-pin disc brake mounting holes (attached) that penetrate through the axial direction of the disc body 1. Figure 3 As shown in the middle mark a), it is convenient to adapt to the vehicle hub with a six-pin structure, and the brake disc also includes a center lock sleeve (attached) detachably connected to the six-pin disc brake mounting hole and coaxially arranged with the disc body. Figure 1 As shown in the middle mark b), the center lock sleeve is detachably connected to the mounting portion by bolts, which makes it easy to adapt the center lock sleeve to the vehicle hub with a central locking structure, thereby improving the versatility of the brake disc. By arranging a heat dissipation portion 4 between the brake portion 5 and the support portion 3, and providing a mounting groove for embedding the heat sink 6 on the heat dissipation portion 4, it is convenient to conduct the heat generated by the brake portion 5 through the heat sink 6, and at the same time, a plurality of first heat dissipation holes 61 are provided on the heat sink 6 to quickly dissipate the heat into the air. In addition, the heat sink 6 and the disc body 1 are of a split structure, which makes it convenient to set the heat sink 6 to a material with better thermal conductivity, so as to more quickly dissipate the heat generated by the brake portion 5 during braking. In addition, the support arm 31 is connected to the connecting portion between two adjacent mounting grooves, which can prevent the mounting groove from affecting the structural strength of the disc body 1, while ensuring the structural strength of the brake disc and improving its heat dissipation performance, thereby preventing the heat generated by braking from affecting the braking effect and structural strength of the brake disc.

[0022] In a more preferred embodiment, the support arms 31 are arranged in a circular array around the axis of the disc body 1, and each support arm 31 is inclined from the inside to the outside toward the direction of rotation of the wheel axle when the vehicle moves forward. This can ensure that the brake disc is subjected to uniform and stable force while improving its pressure resistance, thereby improving the structural strength of the brake disc.

[0023] In a more preferred embodiment, a second heat dissipation hole 311 is provided at the outer end of each support arm 31 to form a certain barrier to prevent heat from being conducted from the connecting portion 42 to the support arm 31, thereby improving heat dissipation and structural stability.

[0024] In a more preferred embodiment, a protrusion 411 for supporting the heat sink 6 is provided on the inner wall of each mounting groove 41, and the heat sink 6 is embedded in the mounting groove 41 and abuts against the protrusion 411. Optionally, at least two heat sinks 6 are embedded in each mounting groove 41, and at least two heat sinks 6 are respectively located on both sides of the protrusion 411, and at least two heat sinks 6 are connected by rivets, and the protrusion 411 provides support for the heat sinks 6 on both sides, so that the heat sinks 6 on both sides clamp the protrusion 411 in the middle, and the heat sink 6 is locked by rivets so that the heat sink 6 can be fixed in the mounting groove 41 to prevent it from falling off; optionally, a sticky material is provided on the protrusion 411 so that the heat sink 6 can be firmly adhered to the protrusion 411 when it is inserted into the mounting groove 41, to prevent the heat sink 6 from falling off.

[0025] In a more preferred embodiment, a plurality of third heat dissipation holes 51 are provided on the surface of the brake part 5, which not only increases the friction between the brake part 5 and the brake caliper and improves the braking effect, but also improves the heat dissipation performance of the brake part 5 and further improves the heat dissipation effect of the brake disc.

[0026] In a more preferred embodiment, the height of the heat dissipation portion 4 surface is lower than the height of the brake portion 5 surface, and the heat dissipation portion 4 surface is sprayed with fluorescent paint to reflect light at night and improve the safety of night driving.

[0027] In a more preferred embodiment, the material of the disc body 1 is stainless steel, and the material of the heat sink 6 is aluminum alloy. The stainless steel material is used to improve the structural strength of the disc body 1, and the aluminum alloy material is used to improve the thermal conductivity of the heat sink 6, thereby ensuring the braking performance and heat dissipation effect of the brake disc.

[0028] Due to the application of the above technical solution, the present invention has the following advantages over the prior art:

[0029] The brake disc in the present invention has a simple structure and is easy to produce. A heat dissipation portion is provided between the brake portion and the support portion, and a mounting groove for embedding a heat sink is opened. At the same time, a first heat dissipation hole is opened on the heat sink so that the heat generated by the brake portion can be quickly conducted and dissipated into the air. In addition, a connecting portion connecting the support arms is formed between adjacent mounting grooves, so that the structural strength of the brake disc can be ensured while heat dissipation is ensured, thereby improving the braking effect and ultimate stress of the brake disc under high-intensity operation, thereby improving its practicality and safety.

[0030] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A brake disc, comprising a circular disc body (1), characterized in that: The disc body (1) has a mounting portion (2) for connecting to a vehicle, a supporting portion (3), a heat dissipation portion (4) for heat dissipation, and a brake portion (5) which are distributed in sequence from the inside to the outside and are integrally formed. The surface of the heat dissipation portion (4) is provided with a plurality of mounting grooves (41) which are formed to penetrate in the axial direction of the disc body (1). The plurality of mounting grooves (41) are arranged in a circular array around the axis of the disc body (1). The disc body (1) also includes heat dissipation fins (6) which are embedded in the mounting grooves (41) in a one-to-one correspondence. Each of the heat dissipation fins (6) is provided with a plurality of first heat dissipation holes (61). The supporting portion (3) includes support arms (31) whose number is the same as the number of the mounting grooves (41). The portion of the heat dissipation portion (4) located between each two adjacent mounting grooves (41) constitutes a connecting portion (42). The inner end of the support arm (31) is connected to the mounting portion (2), and the outer end of the support arm (31) is connected to the connecting portion (42) in a one-to-one correspondence.

2. The brake disc according to claim 1, characterized in that: The support arms (31) are arranged in a circular array around the axis of the disc body (1), and each support arm (31) is inclined from inside to outside toward the rotation direction of the wheel axle when the vehicle moves forward.

3. The brake disc according to claim 1, wherein: A second heat dissipation hole (311) is provided at the outer end of each support arm (31).

4. The brake disc according to claim 1, wherein: A protrusion (411) for supporting the heat sink (6) is provided on the inner wall of each mounting groove (41), and the heat sink (6) is embedded in the mounting groove (41) and abuts against the protrusion (411).

5. The brake disc according to claim 1, wherein: A plurality of third heat dissipation holes (51) are provided on the surface of the brake portion (5).

6. The brake disc according to claim 1, wherein: The height of the surface of the heat dissipation portion (4) is lower than the height of the surface of the brake portion (5), and the surface of the heat dissipation portion (4) is sprayed with fluorescent paint.

7. The brake disc according to claim 1, wherein: The material of the disc body (1) is stainless steel, and the material of the heat sink (6) is aluminum alloy.

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